1999-05-03 07:29:11 +00:00
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/* read.c - read a source file -
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2001-03-08 23:24:26 +00:00
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Copyright 1986, 1987, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
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2001-07-10 09:45:50 +00:00
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1998, 1999, 2000, 2001 Free Software Foundation, Inc.
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1999-05-03 07:29:11 +00:00
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This file is part of GAS, the GNU Assembler.
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GAS is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GAS is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GAS; see the file COPYING. If not, write to the Free
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Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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2000-09-12 03:56:22 +00:00
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02111-1307, USA. */
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1999-05-03 07:29:11 +00:00
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#if 0
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2000-07-20 17:12:25 +00:00
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/* If your chars aren't 8 bits, you will change this a bit.
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But then, GNU isn't spozed to run on your machine anyway.
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(RMS is so shortsighted sometimes.) */
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#define MASK_CHAR (0xFF)
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1999-05-03 07:29:11 +00:00
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#else
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2000-07-20 17:12:25 +00:00
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#define MASK_CHAR ((int)(unsigned char) -1)
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1999-05-03 07:29:11 +00:00
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#endif
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/* This is the largest known floating point format (for now). It will
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2000-07-20 17:12:25 +00:00
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grow when we do 4361 style flonums. */
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1999-05-03 07:29:11 +00:00
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#define MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT (16)
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/* Routines that read assembler source text to build spagetti in memory.
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Another group of these functions is in the expr.c module. */
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2000-07-20 17:12:25 +00:00
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/* For isdigit (). */
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1999-05-03 07:29:11 +00:00
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#include <ctype.h>
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#include "as.h"
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#include "subsegs.h"
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#include "sb.h"
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#include "macro.h"
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#include "obstack.h"
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#include "listing.h"
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#include "ecoff.h"
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#ifndef TC_START_LABEL
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#define TC_START_LABEL(x,y) (x==':')
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#endif
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2000-03-13 20:46:07 +00:00
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/* Set by the object-format or the target. */
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#ifndef TC_IMPLICIT_LCOMM_ALIGNMENT
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2000-07-20 17:12:25 +00:00
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#define TC_IMPLICIT_LCOMM_ALIGNMENT(SIZE, P2VAR) \
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do \
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{ \
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if ((SIZE) >= 8) \
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(P2VAR) = 3; \
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else if ((SIZE) >= 4) \
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(P2VAR) = 2; \
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else if ((SIZE) >= 2) \
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(P2VAR) = 1; \
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else \
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(P2VAR) = 0; \
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} \
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while (0)
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2000-03-13 20:46:07 +00:00
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#endif
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2000-07-20 17:12:25 +00:00
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char *input_line_pointer; /*->next char of source file to parse. */
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1999-05-03 07:29:11 +00:00
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#if BITS_PER_CHAR != 8
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/* The following table is indexed by[(char)] and will break if
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a char does not have exactly 256 states (hopefully 0:255!)! */
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die horribly;
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#endif
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#ifndef LEX_AT
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/* The m88k unfortunately uses @ as a label beginner. */
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#define LEX_AT 0
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#endif
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#ifndef LEX_BR
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/* The RS/6000 assembler uses {,},[,] as parts of symbol names. */
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#define LEX_BR 0
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#endif
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#ifndef LEX_PCT
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/* The Delta 68k assembler permits % inside label names. */
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#define LEX_PCT 0
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#endif
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#ifndef LEX_QM
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/* The PowerPC Windows NT assemblers permits ? inside label names. */
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#define LEX_QM 0
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#endif
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1999-06-05 18:19:09 +00:00
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#ifndef LEX_HASH
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2000-04-21 20:22:24 +00:00
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/* The IA-64 assembler uses # as a suffix designating a symbol. We include
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it in the symbol and strip it out in tc_canonicalize_symbol_name. */
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1999-06-05 18:19:09 +00:00
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#define LEX_HASH 0
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#endif
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1999-05-03 07:29:11 +00:00
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#ifndef LEX_DOLLAR
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/* The a29k assembler does not permits labels to start with $. */
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#define LEX_DOLLAR 3
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#endif
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#ifndef LEX_TILDE
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/* The Delta 68k assembler permits ~ at start of label names. */
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#define LEX_TILDE 0
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#endif
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2000-07-20 17:12:25 +00:00
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/* Used by is_... macros. our ctype[]. */
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2000-11-07 01:18:45 +00:00
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char lex_type[256] = {
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1999-05-03 07:29:11 +00:00
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* @ABCDEFGHIJKLMNO */
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* PQRSTUVWXYZ[\]^_ */
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1999-06-05 18:19:09 +00:00
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0, 0, 0, LEX_HASH, LEX_DOLLAR, LEX_PCT, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, /* _!"#$%&'()*+,-./ */
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1999-05-03 07:29:11 +00:00
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, LEX_QM, /* 0123456789:;<=>? */
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LEX_AT, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* @ABCDEFGHIJKLMNO */
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3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, LEX_BR, 0, LEX_BR, 0, 3, /* PQRSTUVWXYZ[\]^_ */
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0, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* `abcdefghijklmno */
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2000-07-20 17:12:25 +00:00
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3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, LEX_BR, 0, LEX_BR, LEX_TILDE, 0, /* pqrstuvwxyz{|}~. */
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1999-05-03 07:29:11 +00:00
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3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
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3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
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3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
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3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
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3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
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3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
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3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
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3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3
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};
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2000-07-20 17:12:25 +00:00
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/* In: a character.
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Out: 1 if this character ends a line. */
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2000-11-07 01:18:45 +00:00
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char is_end_of_line[256] = {
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1999-05-03 07:29:11 +00:00
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#ifdef CR_EOL
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2000-06-02 02:52:10 +00:00
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1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, /* @abcdefghijklmno */
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1999-05-03 07:29:11 +00:00
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#else
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2000-06-02 02:52:10 +00:00
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1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, /* @abcdefghijklmno */
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1999-05-03 07:29:11 +00:00
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#endif
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2000-06-02 02:52:10 +00:00
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* */
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* _!"#$%&'()*+,-./ */
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2000-06-04 03:28:38 +00:00
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0123456789:;<=>? */
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2000-06-02 02:52:10 +00:00
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* */
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* */
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* */
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* */
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* */
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* */
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* */
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* */
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* */
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2000-06-04 05:03:31 +00:00
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* */
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* */
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 /* */
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1999-05-03 07:29:11 +00:00
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};
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2000-11-02 19:32:47 +00:00
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#ifdef IGNORE_OPCODE_CASE
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char original_case_string[128];
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#endif
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2000-07-20 17:12:25 +00:00
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/* Functions private to this file. */
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1999-05-03 07:29:11 +00:00
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2000-07-20 17:12:25 +00:00
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static char *buffer; /* 1st char of each buffer of lines is here. */
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static char *buffer_limit; /*->1 + last char in buffer. */
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1999-05-03 07:29:11 +00:00
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2000-07-20 17:12:25 +00:00
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/* TARGET_BYTES_BIG_ENDIAN is required to be defined to either 0 or 1
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in the tc-<CPU>.h file. See the "Porting GAS" section of the
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internals manual. */
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1999-05-03 07:29:11 +00:00
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int target_big_endian = TARGET_BYTES_BIG_ENDIAN;
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2000-07-20 17:12:25 +00:00
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static char *old_buffer; /* JF a hack. */
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1999-05-03 07:29:11 +00:00
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static char *old_input;
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static char *old_limit;
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2000-07-20 17:12:25 +00:00
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/* Variables for handling include file directory table. */
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1999-05-03 07:29:11 +00:00
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2000-07-20 17:12:25 +00:00
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/* Table of pointers to directories to search for .include's. */
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char **include_dirs;
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/* How many are in the table. */
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int include_dir_count;
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/* Length of longest in table. */
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int include_dir_maxlen = 1;
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1999-05-03 07:29:11 +00:00
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#ifndef WORKING_DOT_WORD
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struct broken_word *broken_words;
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int new_broken_words;
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#endif
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/* The current offset into the absolute section. We don't try to
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build frags in the absolute section, since no data can be stored
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there. We just keep track of the current offset. */
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addressT abs_section_offset;
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/* If this line had an MRI style label, it is stored in this variable.
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This is used by some of the MRI pseudo-ops. */
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symbolS *line_label;
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/* This global variable is used to support MRI common sections. We
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translate such sections into a common symbol. This variable is
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non-NULL when we are in an MRI common section. */
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symbolS *mri_common_symbol;
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/* In MRI mode, after a dc.b pseudo-op with an odd number of bytes, we
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need to align to an even byte boundary unless the next pseudo-op is
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dc.b, ds.b, or dcb.b. This variable is set to 1 if an alignment
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may be needed. */
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static int mri_pending_align;
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#ifndef NO_LISTING
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#ifdef OBJ_ELF
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/* This variable is set to be non-zero if the next string we see might
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be the name of the source file in DWARF debugging information. See
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the comment in emit_expr for the format we look for. */
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static int dwarf_file_string;
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#endif
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#endif
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static void cons_worker PARAMS ((int, int));
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1999-06-03 00:24:14 +00:00
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static int scrub_from_string PARAMS ((char *, int));
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1999-05-03 07:29:11 +00:00
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static void do_align PARAMS ((int, char *, int, int));
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static void s_align PARAMS ((int, int));
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1999-05-17 03:21:46 +00:00
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static void s_lcomm_internal PARAMS ((int, int));
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1999-05-03 07:29:11 +00:00
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static int hex_float PARAMS ((int, char *));
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1999-05-17 03:21:46 +00:00
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static inline int sizeof_sleb128 PARAMS ((offsetT));
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static inline int sizeof_uleb128 PARAMS ((valueT));
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static inline int output_sleb128 PARAMS ((char *, offsetT));
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static inline int output_uleb128 PARAMS ((char *, valueT));
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static inline int output_big_sleb128 PARAMS ((char *, LITTLENUM_TYPE *, int));
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static inline int output_big_uleb128 PARAMS ((char *, LITTLENUM_TYPE *, int));
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static int output_big_leb128 PARAMS ((char *, LITTLENUM_TYPE *, int, int));
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1999-05-03 07:29:11 +00:00
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static void do_org PARAMS ((segT, expressionS *, int));
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char *demand_copy_string PARAMS ((int *lenP));
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static segT get_segmented_expression PARAMS ((expressionS *expP));
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static segT get_known_segmented_expression PARAMS ((expressionS * expP));
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static void pobegin PARAMS ((void));
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static int get_line_sb PARAMS ((sb *));
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static void generate_file_debug PARAMS ((void));
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void
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read_begin ()
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{
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const char *p;
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pobegin ();
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|
|
|
|
obj_read_begin_hook ();
|
|
|
|
|
|
|
|
|
|
/* Something close -- but not too close -- to a multiple of 1024.
|
|
|
|
|
The debugging malloc I'm using has 24 bytes of overhead. */
|
|
|
|
|
obstack_begin (¬es, chunksize);
|
|
|
|
|
obstack_begin (&cond_obstack, chunksize);
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* Use machine dependent syntax. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
for (p = line_separator_chars; *p; p++)
|
|
|
|
|
is_end_of_line[(unsigned char) *p] = 1;
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* Use more. FIXME-SOMEDAY. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
if (flag_mri)
|
|
|
|
|
lex_type['?'] = 3;
|
|
|
|
|
}
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* Set up pseudo-op tables. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
static struct hash_control *po_hash;
|
|
|
|
|
|
2000-11-07 01:18:45 +00:00
|
|
|
|
static const pseudo_typeS potable[] = {
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{"abort", s_abort, 0},
|
|
|
|
|
{"align", s_align_ptwo, 0},
|
|
|
|
|
{"ascii", stringer, 0},
|
|
|
|
|
{"asciz", stringer, 1},
|
|
|
|
|
{"balign", s_align_bytes, 0},
|
|
|
|
|
{"balignw", s_align_bytes, -2},
|
|
|
|
|
{"balignl", s_align_bytes, -4},
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* block */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{"byte", cons, 1},
|
|
|
|
|
{"comm", s_comm, 0},
|
|
|
|
|
{"common", s_mri_common, 0},
|
|
|
|
|
{"common.s", s_mri_common, 1},
|
|
|
|
|
{"data", s_data, 0},
|
|
|
|
|
{"dc", cons, 2},
|
|
|
|
|
{"dc.b", cons, 1},
|
|
|
|
|
{"dc.d", float_cons, 'd'},
|
|
|
|
|
{"dc.l", cons, 4},
|
|
|
|
|
{"dc.s", float_cons, 'f'},
|
|
|
|
|
{"dc.w", cons, 2},
|
|
|
|
|
{"dc.x", float_cons, 'x'},
|
|
|
|
|
{"dcb", s_space, 2},
|
|
|
|
|
{"dcb.b", s_space, 1},
|
|
|
|
|
{"dcb.d", s_float_space, 'd'},
|
|
|
|
|
{"dcb.l", s_space, 4},
|
|
|
|
|
{"dcb.s", s_float_space, 'f'},
|
|
|
|
|
{"dcb.w", s_space, 2},
|
|
|
|
|
{"dcb.x", s_float_space, 'x'},
|
|
|
|
|
{"ds", s_space, 2},
|
|
|
|
|
{"ds.b", s_space, 1},
|
|
|
|
|
{"ds.d", s_space, 8},
|
|
|
|
|
{"ds.l", s_space, 4},
|
|
|
|
|
{"ds.p", s_space, 12},
|
|
|
|
|
{"ds.s", s_space, 4},
|
|
|
|
|
{"ds.w", s_space, 2},
|
|
|
|
|
{"ds.x", s_space, 12},
|
|
|
|
|
{"debug", s_ignore, 0},
|
|
|
|
|
#ifdef S_SET_DESC
|
|
|
|
|
{"desc", s_desc, 0},
|
|
|
|
|
#endif
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* dim */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{"double", float_cons, 'd'},
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* dsect */
|
|
|
|
|
{"eject", listing_eject, 0}, /* Formfeed listing. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{"else", s_else, 0},
|
|
|
|
|
{"elsec", s_else, 0},
|
2000-02-08 14:13:57 +00:00
|
|
|
|
{"elseif", s_elseif, (int) O_ne},
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{"end", s_end, 0},
|
|
|
|
|
{"endc", s_endif, 0},
|
|
|
|
|
{"endfunc", s_func, 1},
|
|
|
|
|
{"endif", s_endif, 0},
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* endef */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{"equ", s_set, 0},
|
|
|
|
|
{"equiv", s_set, 1},
|
|
|
|
|
{"err", s_err, 0},
|
|
|
|
|
{"exitm", s_mexit, 0},
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* extend */
|
|
|
|
|
{"extern", s_ignore, 0}, /* We treat all undef as ext. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{"appfile", s_app_file, 1},
|
|
|
|
|
{"appline", s_app_line, 0},
|
|
|
|
|
{"fail", s_fail, 0},
|
|
|
|
|
{"file", s_app_file, 0},
|
|
|
|
|
{"fill", s_fill, 0},
|
|
|
|
|
{"float", float_cons, 'f'},
|
|
|
|
|
{"format", s_ignore, 0},
|
|
|
|
|
{"func", s_func, 0},
|
|
|
|
|
{"global", s_globl, 0},
|
|
|
|
|
{"globl", s_globl, 0},
|
|
|
|
|
{"hword", cons, 2},
|
|
|
|
|
{"if", s_if, (int) O_ne},
|
|
|
|
|
{"ifc", s_ifc, 0},
|
|
|
|
|
{"ifdef", s_ifdef, 0},
|
|
|
|
|
{"ifeq", s_if, (int) O_eq},
|
|
|
|
|
{"ifeqs", s_ifeqs, 0},
|
|
|
|
|
{"ifge", s_if, (int) O_ge},
|
|
|
|
|
{"ifgt", s_if, (int) O_gt},
|
|
|
|
|
{"ifle", s_if, (int) O_le},
|
|
|
|
|
{"iflt", s_if, (int) O_lt},
|
|
|
|
|
{"ifnc", s_ifc, 1},
|
|
|
|
|
{"ifndef", s_ifdef, 1},
|
|
|
|
|
{"ifne", s_if, (int) O_ne},
|
|
|
|
|
{"ifnes", s_ifeqs, 1},
|
|
|
|
|
{"ifnotdef", s_ifdef, 1},
|
2001-07-09 08:19:18 +00:00
|
|
|
|
{"incbin", s_incbin, 0},
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{"include", s_include, 0},
|
|
|
|
|
{"int", cons, 4},
|
|
|
|
|
{"irp", s_irp, 0},
|
|
|
|
|
{"irep", s_irp, 0},
|
|
|
|
|
{"irpc", s_irp, 1},
|
|
|
|
|
{"irepc", s_irp, 1},
|
|
|
|
|
{"lcomm", s_lcomm, 0},
|
2000-07-20 17:12:25 +00:00
|
|
|
|
{"lflags", listing_flags, 0}, /* Listing flags. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{"linkonce", s_linkonce, 0},
|
2000-07-20 17:12:25 +00:00
|
|
|
|
{"list", listing_list, 1}, /* Turn listing on. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{"llen", listing_psize, 1},
|
|
|
|
|
{"long", cons, 4},
|
|
|
|
|
{"lsym", s_lsym, 0},
|
|
|
|
|
{"macro", s_macro, 0},
|
|
|
|
|
{"mexit", s_mexit, 0},
|
|
|
|
|
{"mri", s_mri, 0},
|
|
|
|
|
{".mri", s_mri, 0}, /* Special case so .mri works in MRI mode. */
|
|
|
|
|
{"name", s_ignore, 0},
|
|
|
|
|
{"noformat", s_ignore, 0},
|
2000-07-20 17:12:25 +00:00
|
|
|
|
{"nolist", listing_list, 0}, /* Turn listing off. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{"nopage", listing_nopage, 0},
|
|
|
|
|
{"octa", cons, 16},
|
|
|
|
|
{"offset", s_struct, 0},
|
|
|
|
|
{"org", s_org, 0},
|
|
|
|
|
{"p2align", s_align_ptwo, 0},
|
|
|
|
|
{"p2alignw", s_align_ptwo, -2},
|
|
|
|
|
{"p2alignl", s_align_ptwo, -4},
|
|
|
|
|
{"page", listing_eject, 0},
|
|
|
|
|
{"plen", listing_psize, 0},
|
|
|
|
|
{"print", s_print, 0},
|
2000-07-20 17:12:25 +00:00
|
|
|
|
{"psize", listing_psize, 0}, /* Set paper size. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{"purgem", s_purgem, 0},
|
|
|
|
|
{"quad", cons, 8},
|
|
|
|
|
{"rep", s_rept, 0},
|
|
|
|
|
{"rept", s_rept, 0},
|
|
|
|
|
{"rva", s_rva, 4},
|
2000-07-20 17:12:25 +00:00
|
|
|
|
{"sbttl", listing_title, 1}, /* Subtitle of listing. */
|
|
|
|
|
/* scl */
|
|
|
|
|
/* sect */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{"set", s_set, 0},
|
|
|
|
|
{"short", cons, 2},
|
|
|
|
|
{"single", float_cons, 'f'},
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* size */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{"space", s_space, 0},
|
|
|
|
|
{"skip", s_space, 0},
|
|
|
|
|
{"sleb128", s_leb128, 1},
|
|
|
|
|
{"spc", s_ignore, 0},
|
|
|
|
|
{"stabd", s_stab, 'd'},
|
|
|
|
|
{"stabn", s_stab, 'n'},
|
|
|
|
|
{"stabs", s_stab, 's'},
|
|
|
|
|
{"string", stringer, 1},
|
|
|
|
|
{"struct", s_struct, 0},
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* tag */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{"text", s_text, 0},
|
|
|
|
|
|
|
|
|
|
/* This is for gcc to use. It's only just been added (2/94), so gcc
|
|
|
|
|
won't be able to use it for a while -- probably a year or more.
|
|
|
|
|
But once this has been released, check with gcc maintainers
|
|
|
|
|
before deleting it or even changing the spelling. */
|
|
|
|
|
{"this_GCC_requires_the_GNU_assembler", s_ignore, 0},
|
|
|
|
|
/* If we're folding case -- done for some targets, not necessarily
|
|
|
|
|
all -- the above string in an input file will be converted to
|
|
|
|
|
this one. Match it either way... */
|
|
|
|
|
{"this_gcc_requires_the_gnu_assembler", s_ignore, 0},
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
{"title", listing_title, 0}, /* Listing title. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{"ttl", listing_title, 0},
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* type */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{"uleb128", s_leb128, 0},
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* use */
|
|
|
|
|
/* val */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{"xcom", s_comm, 0},
|
|
|
|
|
{"xdef", s_globl, 0},
|
|
|
|
|
{"xref", s_ignore, 0},
|
|
|
|
|
{"xstabs", s_xstab, 's'},
|
|
|
|
|
{"word", cons, 2},
|
|
|
|
|
{"zero", s_space, 0},
|
2000-07-20 17:12:25 +00:00
|
|
|
|
{NULL, NULL, 0} /* End sentinel. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
static int pop_override_ok = 0;
|
|
|
|
|
static const char *pop_table_name;
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
pop_insert (table)
|
|
|
|
|
const pseudo_typeS *table;
|
|
|
|
|
{
|
|
|
|
|
const char *errtxt;
|
|
|
|
|
const pseudo_typeS *pop;
|
|
|
|
|
for (pop = table; pop->poc_name; pop++)
|
|
|
|
|
{
|
|
|
|
|
errtxt = hash_insert (po_hash, pop->poc_name, (char *) pop);
|
|
|
|
|
if (errtxt && (!pop_override_ok || strcmp (errtxt, "exists")))
|
|
|
|
|
as_fatal (_("error constructing %s pseudo-op table: %s"), pop_table_name,
|
|
|
|
|
errtxt);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#ifndef md_pop_insert
|
|
|
|
|
#define md_pop_insert() pop_insert(md_pseudo_table)
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#ifndef obj_pop_insert
|
|
|
|
|
#define obj_pop_insert() pop_insert(obj_pseudo_table)
|
|
|
|
|
#endif
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
static void
|
1999-05-03 07:29:11 +00:00
|
|
|
|
pobegin ()
|
|
|
|
|
{
|
|
|
|
|
po_hash = hash_new ();
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* Do the target-specific pseudo ops. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
pop_table_name = "md";
|
|
|
|
|
md_pop_insert ();
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* Now object specific. Skip any that were in the target table. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
pop_table_name = "obj";
|
|
|
|
|
pop_override_ok = 1;
|
|
|
|
|
obj_pop_insert ();
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* Now portable ones. Skip any that we've seen already. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
pop_table_name = "standard";
|
|
|
|
|
pop_insert (potable);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#define HANDLE_CONDITIONAL_ASSEMBLY() \
|
|
|
|
|
if (ignore_input ()) \
|
|
|
|
|
{ \
|
2000-07-20 17:12:25 +00:00
|
|
|
|
while (!is_end_of_line[(unsigned char) *input_line_pointer++]) \
|
1999-05-03 07:29:11 +00:00
|
|
|
|
if (input_line_pointer == buffer_limit) \
|
|
|
|
|
break; \
|
|
|
|
|
continue; \
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* This function is used when scrubbing the characters between #APP
|
|
|
|
|
and #NO_APP. */
|
|
|
|
|
|
|
|
|
|
static char *scrub_string;
|
|
|
|
|
static char *scrub_string_end;
|
|
|
|
|
|
|
|
|
|
static int
|
1999-06-03 00:24:14 +00:00
|
|
|
|
scrub_from_string (buf, buflen)
|
|
|
|
|
char *buf;
|
|
|
|
|
int buflen;
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
1999-06-03 00:24:14 +00:00
|
|
|
|
int copy;
|
|
|
|
|
|
|
|
|
|
copy = scrub_string_end - scrub_string;
|
|
|
|
|
if (copy > buflen)
|
|
|
|
|
copy = buflen;
|
|
|
|
|
memcpy (buf, scrub_string, copy);
|
|
|
|
|
scrub_string += copy;
|
|
|
|
|
return copy;
|
1999-05-03 07:29:11 +00:00
|
|
|
|
}
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* We read the file, putting things into a web that represents what we
|
|
|
|
|
have been reading. */
|
|
|
|
|
void
|
1999-05-03 07:29:11 +00:00
|
|
|
|
read_a_source_file (name)
|
|
|
|
|
char *name;
|
|
|
|
|
{
|
|
|
|
|
register char c;
|
2000-07-20 17:12:25 +00:00
|
|
|
|
register char *s; /* String of symbol, '\0' appended. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
register int temp;
|
|
|
|
|
pseudo_typeS *pop;
|
|
|
|
|
|
2000-07-28 05:05:20 +00:00
|
|
|
|
#ifdef WARN_COMMENTS
|
|
|
|
|
found_comment = 0;
|
|
|
|
|
#endif
|
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
buffer = input_scrub_new_file (name);
|
|
|
|
|
|
|
|
|
|
listing_file (name);
|
|
|
|
|
listing_newline (NULL);
|
|
|
|
|
register_dependency (name);
|
|
|
|
|
|
|
|
|
|
/* Generate debugging information before we've read anything in to denote
|
|
|
|
|
this file as the "main" source file and not a subordinate one
|
|
|
|
|
(e.g. N_SO vs N_SOL in stabs). */
|
|
|
|
|
generate_file_debug ();
|
|
|
|
|
|
|
|
|
|
while ((buffer_limit = input_scrub_next_buffer (&input_line_pointer)) != 0)
|
2000-07-20 17:12:25 +00:00
|
|
|
|
{ /* We have another line to parse. */
|
|
|
|
|
know (buffer_limit[-1] == '\n'); /* Must have a sentinel. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
contin: /* JF this goto is my fault I admit it.
|
|
|
|
|
Someone brave please re-write the whole
|
|
|
|
|
input section here? Pleeze??? */
|
|
|
|
|
while (input_line_pointer < buffer_limit)
|
|
|
|
|
{
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* We have more of this buffer to parse. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* We now have input_line_pointer->1st char of next line.
|
|
|
|
|
If input_line_pointer [-1] == '\n' then we just
|
|
|
|
|
scanned another line: so bump line counters. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
if (is_end_of_line[(unsigned char) input_line_pointer[-1]])
|
|
|
|
|
{
|
|
|
|
|
#ifdef md_start_line_hook
|
|
|
|
|
md_start_line_hook ();
|
|
|
|
|
#endif
|
|
|
|
|
if (input_line_pointer[-1] == '\n')
|
|
|
|
|
bump_line_counters ();
|
|
|
|
|
|
|
|
|
|
line_label = NULL;
|
|
|
|
|
|
2000-02-24 01:56:31 +00:00
|
|
|
|
if (LABELS_WITHOUT_COLONS || flag_m68k_mri)
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
/* Text at the start of a line must be a label, we
|
|
|
|
|
run down and stick a colon in. */
|
|
|
|
|
if (is_name_beginner (*input_line_pointer))
|
|
|
|
|
{
|
|
|
|
|
char *line_start = input_line_pointer;
|
|
|
|
|
char c;
|
|
|
|
|
int mri_line_macro;
|
|
|
|
|
|
|
|
|
|
LISTING_NEWLINE ();
|
|
|
|
|
HANDLE_CONDITIONAL_ASSEMBLY ();
|
|
|
|
|
|
|
|
|
|
c = get_symbol_end ();
|
|
|
|
|
|
|
|
|
|
/* In MRI mode, the EQU and MACRO pseudoops must
|
|
|
|
|
be handled specially. */
|
|
|
|
|
mri_line_macro = 0;
|
|
|
|
|
if (flag_m68k_mri)
|
|
|
|
|
{
|
|
|
|
|
char *rest = input_line_pointer + 1;
|
|
|
|
|
|
|
|
|
|
if (*rest == ':')
|
|
|
|
|
++rest;
|
|
|
|
|
if (*rest == ' ' || *rest == '\t')
|
|
|
|
|
++rest;
|
|
|
|
|
if ((strncasecmp (rest, "EQU", 3) == 0
|
|
|
|
|
|| strncasecmp (rest, "SET", 3) == 0)
|
|
|
|
|
&& (rest[3] == ' ' || rest[3] == '\t'))
|
|
|
|
|
{
|
|
|
|
|
input_line_pointer = rest + 3;
|
|
|
|
|
equals (line_start,
|
|
|
|
|
strncasecmp (rest, "SET", 3) == 0);
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
if (strncasecmp (rest, "MACRO", 5) == 0
|
|
|
|
|
&& (rest[5] == ' '
|
|
|
|
|
|| rest[5] == '\t'
|
|
|
|
|
|| is_end_of_line[(unsigned char) rest[5]]))
|
|
|
|
|
mri_line_macro = 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* In MRI mode, we need to handle the MACRO
|
|
|
|
|
pseudo-op specially: we don't want to put the
|
|
|
|
|
symbol in the symbol table. */
|
2000-07-20 17:12:25 +00:00
|
|
|
|
if (!mri_line_macro
|
2000-02-10 21:03:12 +00:00
|
|
|
|
#ifdef TC_START_LABEL_WITHOUT_COLON
|
2000-11-07 01:18:45 +00:00
|
|
|
|
&& TC_START_LABEL_WITHOUT_COLON(c,
|
|
|
|
|
input_line_pointer)
|
2000-02-10 21:03:12 +00:00
|
|
|
|
#endif
|
2000-11-07 01:18:45 +00:00
|
|
|
|
)
|
1999-05-03 07:29:11 +00:00
|
|
|
|
line_label = colon (line_start);
|
|
|
|
|
else
|
|
|
|
|
line_label = symbol_create (line_start,
|
|
|
|
|
absolute_section,
|
|
|
|
|
(valueT) 0,
|
|
|
|
|
&zero_address_frag);
|
|
|
|
|
|
|
|
|
|
*input_line_pointer = c;
|
|
|
|
|
if (c == ':')
|
|
|
|
|
input_line_pointer++;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* We are at the begining of a line, or similar place.
|
|
|
|
|
We expect a well-formed assembler statement.
|
|
|
|
|
A "symbol-name:" is a statement.
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
Depending on what compiler is used, the order of these tests
|
|
|
|
|
may vary to catch most common case 1st.
|
|
|
|
|
Each test is independent of all other tests at the (top) level.
|
|
|
|
|
PLEASE make a compiler that doesn't use this assembler.
|
|
|
|
|
It is crufty to waste a compiler's time encoding things for this
|
|
|
|
|
assembler, which then wastes more time decoding it.
|
|
|
|
|
(And communicating via (linear) files is silly!
|
|
|
|
|
If you must pass stuff, please pass a tree!) */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
if ((c = *input_line_pointer++) == '\t'
|
|
|
|
|
|| c == ' '
|
|
|
|
|
|| c == '\f'
|
|
|
|
|
|| c == 0)
|
2000-07-20 17:12:25 +00:00
|
|
|
|
c = *input_line_pointer++;
|
|
|
|
|
|
|
|
|
|
know (c != ' '); /* No further leading whitespace. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
#ifndef NO_LISTING
|
|
|
|
|
/* If listing is on, and we are expanding a macro, then give
|
|
|
|
|
the listing code the contents of the expanded line. */
|
|
|
|
|
if (listing)
|
|
|
|
|
{
|
|
|
|
|
if ((listing & LISTING_MACEXP) && macro_nest > 0)
|
|
|
|
|
{
|
|
|
|
|
char *copy;
|
|
|
|
|
int len;
|
|
|
|
|
|
|
|
|
|
/* Find the end of the current expanded macro line. */
|
2000-11-07 01:18:45 +00:00
|
|
|
|
for (s = input_line_pointer - 1; *s; ++s)
|
1999-05-03 07:29:11 +00:00
|
|
|
|
if (is_end_of_line[(unsigned char) *s])
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
/* Copy it for safe keeping. Also give an indication of
|
|
|
|
|
how much macro nesting is involved at this point. */
|
2000-11-07 01:18:45 +00:00
|
|
|
|
len = s - (input_line_pointer - 1);
|
1999-05-03 07:29:11 +00:00
|
|
|
|
copy = (char *) xmalloc (len + macro_nest + 2);
|
|
|
|
|
memset (copy, '>', macro_nest);
|
|
|
|
|
copy[macro_nest] = ' ';
|
2000-07-20 17:12:25 +00:00
|
|
|
|
memcpy (copy + macro_nest + 1, input_line_pointer - 1, len);
|
|
|
|
|
copy[macro_nest + 1 + len] = '\0';
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
/* Install the line with the listing facility. */
|
|
|
|
|
listing_newline (copy);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
listing_newline (NULL);
|
|
|
|
|
}
|
|
|
|
|
#endif
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* C is the 1st significant character.
|
|
|
|
|
Input_line_pointer points after that character. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
if (is_name_beginner (c))
|
|
|
|
|
{
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* Want user-defined label or pseudo/opcode. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
HANDLE_CONDITIONAL_ASSEMBLY ();
|
|
|
|
|
|
|
|
|
|
s = --input_line_pointer;
|
2000-07-20 17:12:25 +00:00
|
|
|
|
c = get_symbol_end (); /* name's delimiter. */
|
|
|
|
|
|
|
|
|
|
/* C is character after symbol.
|
|
|
|
|
That character's place in the input line is now '\0'.
|
|
|
|
|
S points to the beginning of the symbol.
|
|
|
|
|
[In case of pseudo-op, s->'.'.]
|
|
|
|
|
Input_line_pointer->'\0' where c was. */
|
|
|
|
|
if (TC_START_LABEL (c, input_line_pointer))
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
if (flag_m68k_mri)
|
|
|
|
|
{
|
|
|
|
|
char *rest = input_line_pointer + 1;
|
|
|
|
|
|
|
|
|
|
/* In MRI mode, \tsym: set 0 is permitted. */
|
|
|
|
|
if (*rest == ':')
|
|
|
|
|
++rest;
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
if (*rest == ' ' || *rest == '\t')
|
|
|
|
|
++rest;
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
if ((strncasecmp (rest, "EQU", 3) == 0
|
|
|
|
|
|| strncasecmp (rest, "SET", 3) == 0)
|
|
|
|
|
&& (rest[3] == ' ' || rest[3] == '\t'))
|
|
|
|
|
{
|
|
|
|
|
input_line_pointer = rest + 3;
|
|
|
|
|
equals (s, 1);
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
line_label = colon (s); /* User-defined label. */
|
|
|
|
|
/* Put ':' back for error messages' sake. */
|
|
|
|
|
*input_line_pointer++ = ':';
|
|
|
|
|
/* Input_line_pointer->after ':'. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
SKIP_WHITESPACE ();
|
|
|
|
|
}
|
|
|
|
|
else if (c == '='
|
|
|
|
|
|| ((c == ' ' || c == '\t')
|
|
|
|
|
&& input_line_pointer[1] == '='
|
|
|
|
|
#ifdef TC_EQUAL_IN_INSN
|
2000-07-20 17:12:25 +00:00
|
|
|
|
&& !TC_EQUAL_IN_INSN (c, input_line_pointer)
|
1999-05-03 07:29:11 +00:00
|
|
|
|
#endif
|
|
|
|
|
))
|
|
|
|
|
{
|
|
|
|
|
equals (s, 1);
|
|
|
|
|
demand_empty_rest_of_line ();
|
|
|
|
|
}
|
|
|
|
|
else
|
2000-07-20 17:12:25 +00:00
|
|
|
|
{
|
|
|
|
|
/* Expect pseudo-op or machine instruction. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
pop = NULL;
|
|
|
|
|
|
|
|
|
|
#ifdef IGNORE_OPCODE_CASE
|
|
|
|
|
{
|
|
|
|
|
char *s2 = s;
|
2000-11-02 19:32:47 +00:00
|
|
|
|
|
|
|
|
|
strncpy (original_case_string, s2, sizeof (original_case_string));
|
|
|
|
|
original_case_string[sizeof (original_case_string) - 1] = 0;
|
2000-11-07 01:18:45 +00:00
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
while (*s2)
|
|
|
|
|
{
|
|
|
|
|
if (isupper ((unsigned char) *s2))
|
|
|
|
|
*s2 = tolower (*s2);
|
|
|
|
|
s2++;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
#endif
|
2000-02-24 01:56:31 +00:00
|
|
|
|
if (NO_PSEUDO_DOT || flag_m68k_mri)
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
/* The MRI assembler and the m88k use pseudo-ops
|
|
|
|
|
without a period. */
|
|
|
|
|
pop = (pseudo_typeS *) hash_find (po_hash, s);
|
|
|
|
|
if (pop != NULL && pop->poc_handler == NULL)
|
|
|
|
|
pop = NULL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (pop != NULL
|
2000-07-20 17:12:25 +00:00
|
|
|
|
|| (!flag_m68k_mri && *s == '.'))
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* PSEUDO - OP.
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
WARNING: c has next char, which may be end-of-line.
|
|
|
|
|
We lookup the pseudo-op table with s+1 because we
|
|
|
|
|
already know that the pseudo-op begins with a '.'. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
if (pop == NULL)
|
|
|
|
|
pop = (pseudo_typeS *) hash_find (po_hash, s + 1);
|
|
|
|
|
|
|
|
|
|
/* In MRI mode, we may need to insert an
|
|
|
|
|
automatic alignment directive. What a hack
|
|
|
|
|
this is. */
|
|
|
|
|
if (mri_pending_align
|
|
|
|
|
&& (pop == NULL
|
2000-07-20 17:12:25 +00:00
|
|
|
|
|| !((pop->poc_handler == cons
|
|
|
|
|
&& pop->poc_val == 1)
|
|
|
|
|
|| (pop->poc_handler == s_space
|
|
|
|
|
&& pop->poc_val == 1)
|
1999-05-03 07:29:11 +00:00
|
|
|
|
#ifdef tc_conditional_pseudoop
|
2000-07-20 17:12:25 +00:00
|
|
|
|
|| tc_conditional_pseudoop (pop)
|
1999-05-03 07:29:11 +00:00
|
|
|
|
#endif
|
2000-07-20 17:12:25 +00:00
|
|
|
|
|| pop->poc_handler == s_if
|
|
|
|
|
|| pop->poc_handler == s_ifdef
|
|
|
|
|
|| pop->poc_handler == s_ifc
|
|
|
|
|
|| pop->poc_handler == s_ifeqs
|
|
|
|
|
|| pop->poc_handler == s_else
|
|
|
|
|
|| pop->poc_handler == s_endif
|
|
|
|
|
|| pop->poc_handler == s_globl
|
|
|
|
|
|| pop->poc_handler == s_ignore)))
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
do_align (1, (char *) NULL, 0, 0);
|
|
|
|
|
mri_pending_align = 0;
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
if (line_label != NULL)
|
|
|
|
|
{
|
1999-06-03 00:24:14 +00:00
|
|
|
|
symbol_set_frag (line_label, frag_now);
|
1999-05-03 07:29:11 +00:00
|
|
|
|
S_SET_VALUE (line_label, frag_now_fix ());
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* Print the error msg now, while we still can. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
if (pop == NULL)
|
|
|
|
|
{
|
|
|
|
|
as_bad (_("Unknown pseudo-op: `%s'"), s);
|
|
|
|
|
*input_line_pointer = c;
|
|
|
|
|
s_ignore (0);
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* Put it back for error messages etc. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
*input_line_pointer = c;
|
|
|
|
|
/* The following skip of whitespace is compulsory.
|
|
|
|
|
A well shaped space is sometimes all that separates
|
2000-07-20 17:12:25 +00:00
|
|
|
|
keyword from operands. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
if (c == ' ' || c == '\t')
|
|
|
|
|
input_line_pointer++;
|
2000-07-20 17:12:25 +00:00
|
|
|
|
|
|
|
|
|
/* Input_line is restored.
|
|
|
|
|
Input_line_pointer->1st non-blank char
|
|
|
|
|
after pseudo-operation. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
(*pop->poc_handler) (pop->poc_val);
|
|
|
|
|
|
|
|
|
|
/* If that was .end, just get out now. */
|
|
|
|
|
if (pop->poc_handler == s_end)
|
|
|
|
|
goto quit;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
1999-06-10 21:36:37 +00:00
|
|
|
|
int inquote = 0;
|
|
|
|
|
#ifdef QUOTES_IN_INSN
|
|
|
|
|
int inescape = 0;
|
|
|
|
|
#endif
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* WARNING: c has char, which may be end-of-line. */
|
|
|
|
|
/* Also: input_line_pointer->`\0` where c was. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
*input_line_pointer = c;
|
|
|
|
|
while (!is_end_of_line[(unsigned char) *input_line_pointer]
|
|
|
|
|
|| inquote
|
|
|
|
|
#ifdef TC_EOL_IN_INSN
|
|
|
|
|
|| TC_EOL_IN_INSN (input_line_pointer)
|
|
|
|
|
#endif
|
|
|
|
|
)
|
|
|
|
|
{
|
|
|
|
|
if (flag_m68k_mri && *input_line_pointer == '\'')
|
2000-07-20 17:12:25 +00:00
|
|
|
|
inquote = !inquote;
|
1999-06-03 02:51:09 +00:00
|
|
|
|
#ifdef QUOTES_IN_INSN
|
|
|
|
|
if (inescape)
|
|
|
|
|
inescape = 0;
|
|
|
|
|
else if (*input_line_pointer == '"')
|
2000-07-20 17:12:25 +00:00
|
|
|
|
inquote = !inquote;
|
1999-06-03 02:51:09 +00:00
|
|
|
|
else if (*input_line_pointer == '\\')
|
|
|
|
|
inescape = 1;
|
|
|
|
|
#endif
|
1999-05-03 07:29:11 +00:00
|
|
|
|
input_line_pointer++;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
c = *input_line_pointer;
|
|
|
|
|
*input_line_pointer = '\0';
|
|
|
|
|
|
|
|
|
|
generate_lineno_debug ();
|
|
|
|
|
|
|
|
|
|
if (macro_defined)
|
|
|
|
|
{
|
|
|
|
|
sb out;
|
|
|
|
|
const char *err;
|
2000-07-20 17:12:25 +00:00
|
|
|
|
macro_entry *macro;
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
2000-03-26 14:47:33 +00:00
|
|
|
|
if (check_macro (s, &out, '\0', &err, ¯o))
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
if (err != NULL)
|
2000-01-26 22:48:31 +00:00
|
|
|
|
as_bad ("%s", err);
|
1999-05-03 07:29:11 +00:00
|
|
|
|
*input_line_pointer++ = c;
|
|
|
|
|
input_scrub_include_sb (&out,
|
2000-03-26 14:47:33 +00:00
|
|
|
|
input_line_pointer, 1);
|
1999-05-03 07:29:11 +00:00
|
|
|
|
sb_kill (&out);
|
|
|
|
|
buffer_limit =
|
|
|
|
|
input_scrub_next_buffer (&input_line_pointer);
|
2000-03-26 14:47:33 +00:00
|
|
|
|
#ifdef md_macro_info
|
2000-07-20 17:12:25 +00:00
|
|
|
|
md_macro_info (macro);
|
2000-03-26 14:47:33 +00:00
|
|
|
|
#endif
|
1999-05-03 07:29:11 +00:00
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (mri_pending_align)
|
|
|
|
|
{
|
|
|
|
|
do_align (1, (char *) NULL, 0, 0);
|
|
|
|
|
mri_pending_align = 0;
|
|
|
|
|
if (line_label != NULL)
|
|
|
|
|
{
|
1999-06-03 00:24:14 +00:00
|
|
|
|
symbol_set_frag (line_label, frag_now);
|
1999-05-03 07:29:11 +00:00
|
|
|
|
S_SET_VALUE (line_label, frag_now_fix ());
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
md_assemble (s); /* Assemble 1 instruction. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
*input_line_pointer++ = c;
|
|
|
|
|
|
|
|
|
|
/* We resume loop AFTER the end-of-line from
|
2000-07-20 17:12:25 +00:00
|
|
|
|
this instruction. */
|
|
|
|
|
}
|
|
|
|
|
}
|
1999-05-03 07:29:11 +00:00
|
|
|
|
continue;
|
2000-07-20 17:12:25 +00:00
|
|
|
|
}
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
/* Empty statement? */
|
|
|
|
|
if (is_end_of_line[(unsigned char) c])
|
|
|
|
|
continue;
|
|
|
|
|
|
|
|
|
|
if ((LOCAL_LABELS_DOLLAR || LOCAL_LABELS_FB)
|
|
|
|
|
&& isdigit ((unsigned char) c))
|
|
|
|
|
{
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* local label ("4:") */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
char *backup = input_line_pointer;
|
|
|
|
|
|
|
|
|
|
HANDLE_CONDITIONAL_ASSEMBLY ();
|
|
|
|
|
|
|
|
|
|
temp = c - '0';
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* Read the whole number. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
while (isdigit ((unsigned char) *input_line_pointer))
|
|
|
|
|
{
|
|
|
|
|
temp = (temp * 10) + *input_line_pointer - '0';
|
|
|
|
|
++input_line_pointer;
|
2000-07-20 17:12:25 +00:00
|
|
|
|
}
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
if (LOCAL_LABELS_DOLLAR
|
|
|
|
|
&& *input_line_pointer == '$'
|
|
|
|
|
&& *(input_line_pointer + 1) == ':')
|
|
|
|
|
{
|
|
|
|
|
input_line_pointer += 2;
|
|
|
|
|
|
|
|
|
|
if (dollar_label_defined (temp))
|
|
|
|
|
{
|
|
|
|
|
as_fatal (_("label \"%d$\" redefined"), temp);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
define_dollar_label (temp);
|
|
|
|
|
colon (dollar_label_name (temp, 0));
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (LOCAL_LABELS_FB
|
|
|
|
|
&& *input_line_pointer++ == ':')
|
|
|
|
|
{
|
|
|
|
|
fb_label_instance_inc (temp);
|
|
|
|
|
colon (fb_label_name (temp, 0));
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
input_line_pointer = backup;
|
|
|
|
|
} /* local label ("4:") */
|
|
|
|
|
|
|
|
|
|
if (c && strchr (line_comment_chars, c))
|
2000-07-20 17:12:25 +00:00
|
|
|
|
{ /* Its a comment. Better say APP or NO_APP. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
char *ends;
|
|
|
|
|
char *new_buf;
|
|
|
|
|
char *new_tmp;
|
|
|
|
|
unsigned int new_length;
|
|
|
|
|
char *tmp_buf = 0;
|
|
|
|
|
|
|
|
|
|
bump_line_counters ();
|
|
|
|
|
s = input_line_pointer;
|
|
|
|
|
if (strncmp (s, "APP\n", 4))
|
|
|
|
|
continue; /* We ignore it */
|
|
|
|
|
s += 4;
|
|
|
|
|
|
|
|
|
|
ends = strstr (s, "#NO_APP\n");
|
|
|
|
|
|
|
|
|
|
if (!ends)
|
|
|
|
|
{
|
|
|
|
|
unsigned int tmp_len;
|
|
|
|
|
unsigned int num;
|
|
|
|
|
|
|
|
|
|
/* The end of the #APP wasn't in this buffer. We
|
|
|
|
|
keep reading in buffers until we find the #NO_APP
|
|
|
|
|
that goes with this #APP There is one. The specs
|
2000-07-20 17:12:25 +00:00
|
|
|
|
guarentee it... */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
tmp_len = buffer_limit - s;
|
|
|
|
|
tmp_buf = xmalloc (tmp_len + 1);
|
|
|
|
|
memcpy (tmp_buf, s, tmp_len);
|
|
|
|
|
do
|
|
|
|
|
{
|
|
|
|
|
new_tmp = input_scrub_next_buffer (&buffer);
|
|
|
|
|
if (!new_tmp)
|
|
|
|
|
break;
|
|
|
|
|
else
|
|
|
|
|
buffer_limit = new_tmp;
|
|
|
|
|
input_line_pointer = buffer;
|
|
|
|
|
ends = strstr (buffer, "#NO_APP\n");
|
|
|
|
|
if (ends)
|
|
|
|
|
num = ends - buffer;
|
|
|
|
|
else
|
|
|
|
|
num = buffer_limit - buffer;
|
|
|
|
|
|
|
|
|
|
tmp_buf = xrealloc (tmp_buf, tmp_len + num);
|
|
|
|
|
memcpy (tmp_buf + tmp_len, buffer, num);
|
|
|
|
|
tmp_len += num;
|
|
|
|
|
}
|
|
|
|
|
while (!ends);
|
|
|
|
|
|
|
|
|
|
input_line_pointer = ends ? ends + 8 : NULL;
|
|
|
|
|
|
|
|
|
|
s = tmp_buf;
|
|
|
|
|
ends = s + tmp_len;
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
input_line_pointer = ends + 8;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
scrub_string = s;
|
|
|
|
|
scrub_string_end = ends;
|
|
|
|
|
|
|
|
|
|
new_length = ends - s;
|
|
|
|
|
new_buf = (char *) xmalloc (new_length);
|
|
|
|
|
new_tmp = new_buf;
|
|
|
|
|
for (;;)
|
|
|
|
|
{
|
|
|
|
|
int space;
|
|
|
|
|
int size;
|
|
|
|
|
|
|
|
|
|
space = (new_buf + new_length) - new_tmp;
|
|
|
|
|
size = do_scrub_chars (scrub_from_string, new_tmp, space);
|
|
|
|
|
|
|
|
|
|
if (size < space)
|
|
|
|
|
{
|
|
|
|
|
new_tmp += size;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
new_buf = xrealloc (new_buf, new_length + 100);
|
|
|
|
|
new_tmp = new_buf + new_length;
|
|
|
|
|
new_length += 100;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (tmp_buf)
|
|
|
|
|
free (tmp_buf);
|
|
|
|
|
old_buffer = buffer;
|
|
|
|
|
old_input = input_line_pointer;
|
|
|
|
|
old_limit = buffer_limit;
|
|
|
|
|
buffer = new_buf;
|
|
|
|
|
input_line_pointer = new_buf;
|
|
|
|
|
buffer_limit = new_tmp;
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
HANDLE_CONDITIONAL_ASSEMBLY ();
|
|
|
|
|
|
|
|
|
|
#ifdef tc_unrecognized_line
|
|
|
|
|
if (tc_unrecognized_line (c))
|
|
|
|
|
continue;
|
|
|
|
|
#endif
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* as_warn (_("Junk character %d."),c); Now done by ignore_rest. */
|
|
|
|
|
input_line_pointer--; /* Report unknown char as ignored. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
ignore_rest_of_line ();
|
2000-07-20 17:12:25 +00:00
|
|
|
|
}
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
#ifdef md_after_pass_hook
|
|
|
|
|
md_after_pass_hook ();
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
if (old_buffer)
|
|
|
|
|
{
|
|
|
|
|
free (buffer);
|
|
|
|
|
bump_line_counters ();
|
|
|
|
|
if (old_input != 0)
|
|
|
|
|
{
|
|
|
|
|
buffer = old_buffer;
|
|
|
|
|
input_line_pointer = old_input;
|
|
|
|
|
buffer_limit = old_limit;
|
|
|
|
|
old_buffer = 0;
|
|
|
|
|
goto contin;
|
|
|
|
|
}
|
|
|
|
|
}
|
2000-07-20 17:12:25 +00:00
|
|
|
|
}
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
quit:
|
|
|
|
|
|
|
|
|
|
#ifdef md_cleanup
|
2000-07-20 17:12:25 +00:00
|
|
|
|
md_cleanup ();
|
1999-05-03 07:29:11 +00:00
|
|
|
|
#endif
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* Close the input file. */
|
|
|
|
|
input_scrub_close ();
|
2000-07-28 05:05:20 +00:00
|
|
|
|
#ifdef WARN_COMMENTS
|
|
|
|
|
{
|
|
|
|
|
if (warn_comment && found_comment)
|
|
|
|
|
as_warn_where (found_comment_file, found_comment,
|
|
|
|
|
"first comment found here");
|
|
|
|
|
}
|
|
|
|
|
#endif
|
1999-05-03 07:29:11 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* For most MRI pseudo-ops, the line actually ends at the first
|
|
|
|
|
nonquoted space. This function looks for that point, stuffs a null
|
|
|
|
|
in, and sets *STOPCP to the character that used to be there, and
|
|
|
|
|
returns the location.
|
|
|
|
|
|
|
|
|
|
Until I hear otherwise, I am going to assume that this is only true
|
|
|
|
|
for the m68k MRI assembler. */
|
|
|
|
|
|
|
|
|
|
char *
|
|
|
|
|
mri_comment_field (stopcp)
|
|
|
|
|
char *stopcp;
|
|
|
|
|
{
|
|
|
|
|
char *s;
|
2000-07-20 17:12:25 +00:00
|
|
|
|
#ifdef TC_M68K
|
1999-05-03 07:29:11 +00:00
|
|
|
|
int inquote = 0;
|
|
|
|
|
|
|
|
|
|
know (flag_m68k_mri);
|
|
|
|
|
|
|
|
|
|
for (s = input_line_pointer;
|
2000-07-20 17:12:25 +00:00
|
|
|
|
((!is_end_of_line[(unsigned char) *s] && *s != ' ' && *s != '\t')
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|| inquote);
|
|
|
|
|
s++)
|
|
|
|
|
{
|
|
|
|
|
if (*s == '\'')
|
2000-07-20 17:12:25 +00:00
|
|
|
|
inquote = !inquote;
|
1999-05-03 07:29:11 +00:00
|
|
|
|
}
|
|
|
|
|
#else
|
2000-07-20 17:12:25 +00:00
|
|
|
|
for (s = input_line_pointer;
|
|
|
|
|
!is_end_of_line[(unsigned char) *s];
|
|
|
|
|
s++)
|
1999-05-03 07:29:11 +00:00
|
|
|
|
;
|
2000-07-20 17:12:25 +00:00
|
|
|
|
#endif
|
1999-05-03 07:29:11 +00:00
|
|
|
|
*stopcp = *s;
|
|
|
|
|
*s = '\0';
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
return s;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Skip to the end of an MRI comment field. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
mri_comment_end (stop, stopc)
|
|
|
|
|
char *stop;
|
|
|
|
|
int stopc;
|
|
|
|
|
{
|
|
|
|
|
know (flag_mri);
|
|
|
|
|
|
|
|
|
|
input_line_pointer = stop;
|
|
|
|
|
*stop = stopc;
|
2000-07-20 17:12:25 +00:00
|
|
|
|
while (!is_end_of_line[(unsigned char) *input_line_pointer])
|
1999-05-03 07:29:11 +00:00
|
|
|
|
++input_line_pointer;
|
|
|
|
|
}
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
void
|
1999-05-03 07:29:11 +00:00
|
|
|
|
s_abort (ignore)
|
1999-07-11 20:20:04 +00:00
|
|
|
|
int ignore ATTRIBUTE_UNUSED;
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
as_fatal (_(".abort detected. Abandoning ship."));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Guts of .align directive. N is the power of two to which to align.
|
|
|
|
|
FILL may be NULL, or it may point to the bytes of the fill pattern.
|
|
|
|
|
LEN is the length of whatever FILL points to, if anything. MAX is
|
|
|
|
|
the maximum number of characters to skip when doing the alignment,
|
|
|
|
|
or 0 if there is no maximum. */
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
static void
|
1999-05-03 07:29:11 +00:00
|
|
|
|
do_align (n, fill, len, max)
|
|
|
|
|
int n;
|
|
|
|
|
char *fill;
|
|
|
|
|
int len;
|
|
|
|
|
int max;
|
|
|
|
|
{
|
|
|
|
|
#ifdef md_do_align
|
|
|
|
|
md_do_align (n, fill, len, max, just_record_alignment);
|
|
|
|
|
#endif
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* Only make a frag if we HAVE to... */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
if (n != 0 && !need_pass_2)
|
|
|
|
|
{
|
2000-12-28 10:07:56 +00:00
|
|
|
|
if (fill == NULL)
|
|
|
|
|
{
|
|
|
|
|
if (subseg_text_p (now_seg))
|
|
|
|
|
frag_align_code (n, max);
|
|
|
|
|
else
|
|
|
|
|
frag_align (n, 0, max);
|
|
|
|
|
}
|
|
|
|
|
else if (len <= 1)
|
1999-05-03 07:29:11 +00:00
|
|
|
|
frag_align (n, *fill, max);
|
|
|
|
|
else
|
|
|
|
|
frag_align_pattern (n, fill, len, max);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#ifdef md_do_align
|
|
|
|
|
just_record_alignment:
|
|
|
|
|
#endif
|
|
|
|
|
|
2000-02-03 18:20:23 +00:00
|
|
|
|
record_alignment (now_seg, n - OCTETS_PER_BYTE_POWER);
|
1999-05-03 07:29:11 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Handle the .align pseudo-op. A positive ARG is a default alignment
|
|
|
|
|
(in bytes). A negative ARG is the negative of the length of the
|
|
|
|
|
fill pattern. BYTES_P is non-zero if the alignment value should be
|
|
|
|
|
interpreted as the byte boundary, rather than the power of 2. */
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
s_align (arg, bytes_p)
|
|
|
|
|
int arg;
|
|
|
|
|
int bytes_p;
|
|
|
|
|
{
|
|
|
|
|
register unsigned int align;
|
|
|
|
|
char *stop = NULL;
|
|
|
|
|
char stopc;
|
|
|
|
|
offsetT fill = 0;
|
|
|
|
|
int max;
|
|
|
|
|
int fill_p;
|
|
|
|
|
|
|
|
|
|
if (flag_mri)
|
|
|
|
|
stop = mri_comment_field (&stopc);
|
|
|
|
|
|
|
|
|
|
if (is_end_of_line[(unsigned char) *input_line_pointer])
|
|
|
|
|
{
|
|
|
|
|
if (arg < 0)
|
|
|
|
|
align = 0;
|
|
|
|
|
else
|
2000-07-20 17:12:25 +00:00
|
|
|
|
align = arg; /* Default value from pseudo-op table. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
align = get_absolute_expression ();
|
|
|
|
|
SKIP_WHITESPACE ();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (bytes_p)
|
|
|
|
|
{
|
|
|
|
|
/* Convert to a power of 2. */
|
|
|
|
|
if (align != 0)
|
|
|
|
|
{
|
|
|
|
|
unsigned int i;
|
|
|
|
|
|
|
|
|
|
for (i = 0; (align & 1) == 0; align >>= 1, ++i)
|
|
|
|
|
;
|
|
|
|
|
if (align != 1)
|
|
|
|
|
as_bad (_("Alignment not a power of 2"));
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
align = i;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (align > 15)
|
|
|
|
|
{
|
|
|
|
|
align = 15;
|
|
|
|
|
as_bad (_("Alignment too large: %u assumed"), align);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (*input_line_pointer != ',')
|
|
|
|
|
{
|
|
|
|
|
fill_p = 0;
|
|
|
|
|
max = 0;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
++input_line_pointer;
|
|
|
|
|
if (*input_line_pointer == ',')
|
|
|
|
|
fill_p = 0;
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
fill = get_absolute_expression ();
|
|
|
|
|
SKIP_WHITESPACE ();
|
|
|
|
|
fill_p = 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (*input_line_pointer != ',')
|
|
|
|
|
max = 0;
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
++input_line_pointer;
|
|
|
|
|
max = get_absolute_expression ();
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
if (!fill_p)
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
if (arg < 0)
|
|
|
|
|
as_warn (_("expected fill pattern missing"));
|
|
|
|
|
do_align (align, (char *) NULL, 0, max);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
int fill_len;
|
|
|
|
|
|
|
|
|
|
if (arg >= 0)
|
|
|
|
|
fill_len = 1;
|
|
|
|
|
else
|
2000-07-20 17:12:25 +00:00
|
|
|
|
fill_len = -arg;
|
1999-05-03 07:29:11 +00:00
|
|
|
|
if (fill_len <= 1)
|
|
|
|
|
{
|
|
|
|
|
char fill_char;
|
|
|
|
|
|
|
|
|
|
fill_char = fill;
|
|
|
|
|
do_align (align, &fill_char, fill_len, max);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
char ab[16];
|
|
|
|
|
|
|
|
|
|
if ((size_t) fill_len > sizeof ab)
|
|
|
|
|
abort ();
|
|
|
|
|
md_number_to_chars (ab, fill, fill_len);
|
|
|
|
|
do_align (align, ab, fill_len, max);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
demand_empty_rest_of_line ();
|
|
|
|
|
|
|
|
|
|
if (flag_mri)
|
|
|
|
|
mri_comment_end (stop, stopc);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Handle the .align pseudo-op on machines where ".align 4" means
|
|
|
|
|
align to a 4 byte boundary. */
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
void
|
1999-05-03 07:29:11 +00:00
|
|
|
|
s_align_bytes (arg)
|
|
|
|
|
int arg;
|
|
|
|
|
{
|
|
|
|
|
s_align (arg, 1);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Handle the .align pseudo-op on machines where ".align 4" means align
|
|
|
|
|
to a 2**4 boundary. */
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
void
|
1999-05-03 07:29:11 +00:00
|
|
|
|
s_align_ptwo (arg)
|
|
|
|
|
int arg;
|
|
|
|
|
{
|
|
|
|
|
s_align (arg, 0);
|
|
|
|
|
}
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
void
|
1999-05-03 07:29:11 +00:00
|
|
|
|
s_comm (ignore)
|
1999-07-11 20:20:04 +00:00
|
|
|
|
int ignore ATTRIBUTE_UNUSED;
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
register char *name;
|
|
|
|
|
register char c;
|
|
|
|
|
register char *p;
|
|
|
|
|
offsetT temp;
|
|
|
|
|
register symbolS *symbolP;
|
|
|
|
|
char *stop = NULL;
|
|
|
|
|
char stopc;
|
|
|
|
|
|
|
|
|
|
if (flag_mri)
|
|
|
|
|
stop = mri_comment_field (&stopc);
|
|
|
|
|
|
|
|
|
|
name = input_line_pointer;
|
|
|
|
|
c = get_symbol_end ();
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* Just after name is now '\0'. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
p = input_line_pointer;
|
|
|
|
|
*p = c;
|
|
|
|
|
SKIP_WHITESPACE ();
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
if (*input_line_pointer != ',')
|
|
|
|
|
{
|
|
|
|
|
as_bad (_("Expected comma after symbol-name: rest of line ignored."));
|
|
|
|
|
ignore_rest_of_line ();
|
|
|
|
|
if (flag_mri)
|
|
|
|
|
mri_comment_end (stop, stopc);
|
|
|
|
|
return;
|
|
|
|
|
}
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
input_line_pointer++; /* skip ',' */
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
if ((temp = get_absolute_expression ()) < 0)
|
|
|
|
|
{
|
|
|
|
|
as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp);
|
|
|
|
|
ignore_rest_of_line ();
|
|
|
|
|
if (flag_mri)
|
|
|
|
|
mri_comment_end (stop, stopc);
|
|
|
|
|
return;
|
|
|
|
|
}
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
*p = 0;
|
|
|
|
|
symbolP = symbol_find_or_make (name);
|
|
|
|
|
*p = c;
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
if (S_IS_DEFINED (symbolP) && !S_IS_COMMON (symbolP))
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
as_bad (_("Ignoring attempt to re-define symbol `%s'."),
|
|
|
|
|
S_GET_NAME (symbolP));
|
|
|
|
|
ignore_rest_of_line ();
|
|
|
|
|
if (flag_mri)
|
|
|
|
|
mri_comment_end (stop, stopc);
|
|
|
|
|
return;
|
|
|
|
|
}
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
if (S_GET_VALUE (symbolP))
|
|
|
|
|
{
|
|
|
|
|
if (S_GET_VALUE (symbolP) != (valueT) temp)
|
|
|
|
|
as_bad (_("Length of .comm \"%s\" is already %ld. Not changed to %ld."),
|
|
|
|
|
S_GET_NAME (symbolP),
|
|
|
|
|
(long) S_GET_VALUE (symbolP),
|
|
|
|
|
(long) temp);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
S_SET_VALUE (symbolP, (valueT) temp);
|
|
|
|
|
S_SET_EXTERNAL (symbolP);
|
|
|
|
|
}
|
|
|
|
|
#ifdef OBJ_VMS
|
|
|
|
|
{
|
|
|
|
|
extern int flag_one;
|
2000-07-20 17:12:25 +00:00
|
|
|
|
if (!temp || !flag_one)
|
1999-05-03 07:29:11 +00:00
|
|
|
|
S_GET_OTHER(symbolP) = const_flag;
|
|
|
|
|
}
|
|
|
|
|
#endif /* not OBJ_VMS */
|
|
|
|
|
know (symbolP->sy_frag == &zero_address_frag);
|
|
|
|
|
|
|
|
|
|
demand_empty_rest_of_line ();
|
|
|
|
|
|
|
|
|
|
if (flag_mri)
|
|
|
|
|
mri_comment_end (stop, stopc);
|
|
|
|
|
} /* s_comm() */
|
|
|
|
|
|
|
|
|
|
/* The MRI COMMON pseudo-op. We handle this by creating a common
|
|
|
|
|
symbol with the appropriate name. We make s_space do the right
|
|
|
|
|
thing by increasing the size. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
s_mri_common (small)
|
1999-07-11 20:20:04 +00:00
|
|
|
|
int small ATTRIBUTE_UNUSED;
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
char *name;
|
|
|
|
|
char c;
|
|
|
|
|
char *alc = NULL;
|
|
|
|
|
symbolS *sym;
|
|
|
|
|
offsetT align;
|
|
|
|
|
char *stop = NULL;
|
|
|
|
|
char stopc;
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
if (!flag_mri)
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
s_comm (0);
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
stop = mri_comment_field (&stopc);
|
|
|
|
|
|
|
|
|
|
SKIP_WHITESPACE ();
|
|
|
|
|
|
|
|
|
|
name = input_line_pointer;
|
2000-07-20 17:12:25 +00:00
|
|
|
|
if (!isdigit ((unsigned char) *name))
|
1999-05-03 07:29:11 +00:00
|
|
|
|
c = get_symbol_end ();
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
do
|
|
|
|
|
{
|
|
|
|
|
++input_line_pointer;
|
|
|
|
|
}
|
|
|
|
|
while (isdigit ((unsigned char) *input_line_pointer));
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
c = *input_line_pointer;
|
|
|
|
|
*input_line_pointer = '\0';
|
|
|
|
|
|
|
|
|
|
if (line_label != NULL)
|
|
|
|
|
{
|
|
|
|
|
alc = (char *) xmalloc (strlen (S_GET_NAME (line_label))
|
|
|
|
|
+ (input_line_pointer - name)
|
|
|
|
|
+ 1);
|
|
|
|
|
sprintf (alc, "%s%s", name, S_GET_NAME (line_label));
|
|
|
|
|
name = alc;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
sym = symbol_find_or_make (name);
|
|
|
|
|
*input_line_pointer = c;
|
|
|
|
|
if (alc != NULL)
|
|
|
|
|
free (alc);
|
|
|
|
|
|
|
|
|
|
if (*input_line_pointer != ',')
|
|
|
|
|
align = 0;
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
++input_line_pointer;
|
|
|
|
|
align = get_absolute_expression ();
|
|
|
|
|
}
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
if (S_IS_DEFINED (sym) && !S_IS_COMMON (sym))
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
as_bad (_("attempt to re-define symbol `%s'"), S_GET_NAME (sym));
|
|
|
|
|
ignore_rest_of_line ();
|
|
|
|
|
mri_comment_end (stop, stopc);
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
S_SET_EXTERNAL (sym);
|
|
|
|
|
mri_common_symbol = sym;
|
|
|
|
|
|
|
|
|
|
#ifdef S_SET_ALIGN
|
|
|
|
|
if (align != 0)
|
|
|
|
|
S_SET_ALIGN (sym, align);
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
if (line_label != NULL)
|
|
|
|
|
{
|
1999-06-03 00:24:14 +00:00
|
|
|
|
expressionS exp;
|
|
|
|
|
exp.X_op = O_symbol;
|
|
|
|
|
exp.X_add_symbol = sym;
|
|
|
|
|
exp.X_add_number = 0;
|
|
|
|
|
symbol_set_value_expression (line_label, &exp);
|
|
|
|
|
symbol_set_frag (line_label, &zero_address_frag);
|
1999-05-03 07:29:11 +00:00
|
|
|
|
S_SET_SEGMENT (line_label, expr_section);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* FIXME: We just ignore the small argument, which distinguishes
|
|
|
|
|
COMMON and COMMON.S. I don't know what we can do about it. */
|
|
|
|
|
|
|
|
|
|
/* Ignore the type and hptype. */
|
|
|
|
|
if (*input_line_pointer == ',')
|
|
|
|
|
input_line_pointer += 2;
|
|
|
|
|
if (*input_line_pointer == ',')
|
|
|
|
|
input_line_pointer += 2;
|
|
|
|
|
|
|
|
|
|
demand_empty_rest_of_line ();
|
|
|
|
|
|
|
|
|
|
mri_comment_end (stop, stopc);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
s_data (ignore)
|
1999-07-11 20:20:04 +00:00
|
|
|
|
int ignore ATTRIBUTE_UNUSED;
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
segT section;
|
|
|
|
|
register int temp;
|
|
|
|
|
|
|
|
|
|
temp = get_absolute_expression ();
|
|
|
|
|
if (flag_readonly_data_in_text)
|
|
|
|
|
{
|
|
|
|
|
section = text_section;
|
|
|
|
|
temp += 1000;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
section = data_section;
|
|
|
|
|
|
|
|
|
|
subseg_set (section, (subsegT) temp);
|
|
|
|
|
|
|
|
|
|
#ifdef OBJ_VMS
|
|
|
|
|
const_flag = 0;
|
|
|
|
|
#endif
|
|
|
|
|
demand_empty_rest_of_line ();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Handle the .appfile pseudo-op. This is automatically generated by
|
|
|
|
|
do_scrub_chars when a preprocessor # line comment is seen with a
|
|
|
|
|
file name. This default definition may be overridden by the object
|
|
|
|
|
or CPU specific pseudo-ops. This function is also the default
|
|
|
|
|
definition for .file; the APPFILE argument is 1 for .appfile, 0 for
|
|
|
|
|
.file. */
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
void
|
1999-05-03 07:29:11 +00:00
|
|
|
|
s_app_file (appfile)
|
|
|
|
|
int appfile;
|
|
|
|
|
{
|
|
|
|
|
register char *s;
|
|
|
|
|
int length;
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* Some assemblers tolerate immediately following '"'. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
if ((s = demand_copy_string (&length)) != 0)
|
|
|
|
|
{
|
|
|
|
|
/* If this is a fake .appfile, a fake newline was inserted into
|
|
|
|
|
the buffer. Passing -2 to new_logical_line tells it to
|
|
|
|
|
account for it. */
|
|
|
|
|
int may_omit
|
2000-07-20 17:12:25 +00:00
|
|
|
|
= (!new_logical_line (s, appfile ? -2 : -1) && appfile);
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
/* In MRI mode, the preprocessor may have inserted an extraneous
|
|
|
|
|
backquote. */
|
|
|
|
|
if (flag_m68k_mri
|
|
|
|
|
&& *input_line_pointer == '\''
|
|
|
|
|
&& is_end_of_line[(unsigned char) input_line_pointer[1]])
|
|
|
|
|
++input_line_pointer;
|
|
|
|
|
|
|
|
|
|
demand_empty_rest_of_line ();
|
2000-07-20 17:12:25 +00:00
|
|
|
|
if (!may_omit)
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
#ifdef LISTING
|
|
|
|
|
if (listing)
|
|
|
|
|
listing_source_file (s);
|
|
|
|
|
#endif
|
|
|
|
|
register_dependency (s);
|
|
|
|
|
#ifdef obj_app_file
|
|
|
|
|
obj_app_file (s);
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Handle the .appline pseudo-op. This is automatically generated by
|
|
|
|
|
do_scrub_chars when a preprocessor # line comment is seen. This
|
|
|
|
|
default definition may be overridden by the object or CPU specific
|
|
|
|
|
pseudo-ops. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
s_app_line (ignore)
|
1999-07-11 20:20:04 +00:00
|
|
|
|
int ignore ATTRIBUTE_UNUSED;
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
int l;
|
|
|
|
|
|
|
|
|
|
/* The given number is that of the next line. */
|
|
|
|
|
l = get_absolute_expression () - 1;
|
|
|
|
|
if (l < 0)
|
|
|
|
|
/* Some of the back ends can't deal with non-positive line numbers.
|
|
|
|
|
Besides, it's silly. */
|
2000-07-20 17:12:25 +00:00
|
|
|
|
as_warn (_("Line numbers must be positive; line number %d rejected."),
|
|
|
|
|
l + 1);
|
1999-05-03 07:29:11 +00:00
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
new_logical_line ((char *) NULL, l);
|
|
|
|
|
#ifdef LISTING
|
|
|
|
|
if (listing)
|
|
|
|
|
listing_source_line (l);
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
demand_empty_rest_of_line ();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Handle the .end pseudo-op. Actually, the real work is done in
|
|
|
|
|
read_a_source_file. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
s_end (ignore)
|
1999-07-11 20:20:04 +00:00
|
|
|
|
int ignore ATTRIBUTE_UNUSED;
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
if (flag_mri)
|
|
|
|
|
{
|
|
|
|
|
/* The MRI assembler permits the start symbol to follow .end,
|
|
|
|
|
but we don't support that. */
|
|
|
|
|
SKIP_WHITESPACE ();
|
2000-07-20 17:12:25 +00:00
|
|
|
|
if (!is_end_of_line[(unsigned char) *input_line_pointer]
|
1999-05-03 07:29:11 +00:00
|
|
|
|
&& *input_line_pointer != '*'
|
|
|
|
|
&& *input_line_pointer != '!')
|
|
|
|
|
as_warn (_("start address not supported"));
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Handle the .err pseudo-op. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
s_err (ignore)
|
1999-07-11 20:20:04 +00:00
|
|
|
|
int ignore ATTRIBUTE_UNUSED;
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
as_bad (_(".err encountered"));
|
|
|
|
|
demand_empty_rest_of_line ();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Handle the MRI fail pseudo-op. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
s_fail (ignore)
|
1999-07-11 20:20:04 +00:00
|
|
|
|
int ignore ATTRIBUTE_UNUSED;
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
offsetT temp;
|
|
|
|
|
char *stop = NULL;
|
|
|
|
|
char stopc;
|
|
|
|
|
|
|
|
|
|
if (flag_mri)
|
|
|
|
|
stop = mri_comment_field (&stopc);
|
|
|
|
|
|
|
|
|
|
temp = get_absolute_expression ();
|
|
|
|
|
if (temp >= 500)
|
|
|
|
|
as_warn (_(".fail %ld encountered"), (long) temp);
|
|
|
|
|
else
|
|
|
|
|
as_bad (_(".fail %ld encountered"), (long) temp);
|
|
|
|
|
|
|
|
|
|
demand_empty_rest_of_line ();
|
|
|
|
|
|
|
|
|
|
if (flag_mri)
|
|
|
|
|
mri_comment_end (stop, stopc);
|
|
|
|
|
}
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
void
|
1999-05-03 07:29:11 +00:00
|
|
|
|
s_fill (ignore)
|
1999-07-11 20:20:04 +00:00
|
|
|
|
int ignore ATTRIBUTE_UNUSED;
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
expressionS rep_exp;
|
|
|
|
|
long size = 1;
|
|
|
|
|
register long fill = 0;
|
|
|
|
|
char *p;
|
|
|
|
|
|
|
|
|
|
#ifdef md_flush_pending_output
|
|
|
|
|
md_flush_pending_output ();
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
get_known_segmented_expression (&rep_exp);
|
|
|
|
|
if (*input_line_pointer == ',')
|
|
|
|
|
{
|
|
|
|
|
input_line_pointer++;
|
|
|
|
|
size = get_absolute_expression ();
|
|
|
|
|
if (*input_line_pointer == ',')
|
|
|
|
|
{
|
|
|
|
|
input_line_pointer++;
|
|
|
|
|
fill = get_absolute_expression ();
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* This is to be compatible with BSD 4.2 AS, not for any rational reason. */
|
|
|
|
|
#define BSD_FILL_SIZE_CROCK_8 (8)
|
|
|
|
|
if (size > BSD_FILL_SIZE_CROCK_8)
|
|
|
|
|
{
|
|
|
|
|
as_warn (_(".fill size clamped to %d."), BSD_FILL_SIZE_CROCK_8);
|
|
|
|
|
size = BSD_FILL_SIZE_CROCK_8;
|
|
|
|
|
}
|
|
|
|
|
if (size < 0)
|
|
|
|
|
{
|
|
|
|
|
as_warn (_("Size negative: .fill ignored."));
|
|
|
|
|
size = 0;
|
|
|
|
|
}
|
|
|
|
|
else if (rep_exp.X_op == O_constant && rep_exp.X_add_number <= 0)
|
|
|
|
|
{
|
|
|
|
|
if (rep_exp.X_add_number < 0)
|
|
|
|
|
as_warn (_("Repeat < 0, .fill ignored"));
|
|
|
|
|
size = 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (size && !need_pass_2)
|
|
|
|
|
{
|
|
|
|
|
if (rep_exp.X_op == O_constant)
|
|
|
|
|
{
|
|
|
|
|
p = frag_var (rs_fill, (int) size, (int) size,
|
|
|
|
|
(relax_substateT) 0, (symbolS *) 0,
|
|
|
|
|
(offsetT) rep_exp.X_add_number,
|
|
|
|
|
(char *) 0);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
/* We don't have a constant repeat count, so we can't use
|
|
|
|
|
rs_fill. We can get the same results out of rs_space,
|
|
|
|
|
but its argument is in bytes, so we must multiply the
|
|
|
|
|
repeat count by size. */
|
|
|
|
|
|
|
|
|
|
symbolS *rep_sym;
|
|
|
|
|
rep_sym = make_expr_symbol (&rep_exp);
|
|
|
|
|
if (size != 1)
|
|
|
|
|
{
|
|
|
|
|
expressionS size_exp;
|
|
|
|
|
size_exp.X_op = O_constant;
|
|
|
|
|
size_exp.X_add_number = size;
|
|
|
|
|
|
|
|
|
|
rep_exp.X_op = O_multiply;
|
|
|
|
|
rep_exp.X_add_symbol = rep_sym;
|
|
|
|
|
rep_exp.X_op_symbol = make_expr_symbol (&size_exp);
|
|
|
|
|
rep_exp.X_add_number = 0;
|
|
|
|
|
rep_sym = make_expr_symbol (&rep_exp);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
p = frag_var (rs_space, (int) size, (int) size,
|
|
|
|
|
(relax_substateT) 0, rep_sym, (offsetT) 0, (char *) 0);
|
|
|
|
|
}
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
memset (p, 0, (unsigned int) size);
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
/* The magic number BSD_FILL_SIZE_CROCK_4 is from BSD 4.2 VAX
|
2001-07-05 00:36:50 +00:00
|
|
|
|
flavoured AS. The following bizarre behaviour is to be
|
2000-07-20 17:12:25 +00:00
|
|
|
|
compatible with above. I guess they tried to take up to 8
|
|
|
|
|
bytes from a 4-byte expression and they forgot to sign
|
2001-07-05 00:36:50 +00:00
|
|
|
|
extend. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
#define BSD_FILL_SIZE_CROCK_4 (4)
|
|
|
|
|
md_number_to_chars (p, (valueT) fill,
|
|
|
|
|
(size > BSD_FILL_SIZE_CROCK_4
|
|
|
|
|
? BSD_FILL_SIZE_CROCK_4
|
|
|
|
|
: (int) size));
|
|
|
|
|
/* Note: .fill (),0 emits no frag (since we are asked to .fill 0 bytes)
|
2000-07-20 17:12:25 +00:00
|
|
|
|
but emits no error message because it seems a legal thing to do.
|
|
|
|
|
It is a degenerate case of .fill but could be emitted by a
|
|
|
|
|
compiler. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
}
|
|
|
|
|
demand_empty_rest_of_line ();
|
|
|
|
|
}
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
void
|
1999-05-03 07:29:11 +00:00
|
|
|
|
s_globl (ignore)
|
1999-07-11 20:20:04 +00:00
|
|
|
|
int ignore ATTRIBUTE_UNUSED;
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
char *name;
|
|
|
|
|
int c;
|
|
|
|
|
symbolS *symbolP;
|
|
|
|
|
char *stop = NULL;
|
|
|
|
|
char stopc;
|
|
|
|
|
|
|
|
|
|
if (flag_mri)
|
|
|
|
|
stop = mri_comment_field (&stopc);
|
|
|
|
|
|
|
|
|
|
do
|
|
|
|
|
{
|
|
|
|
|
name = input_line_pointer;
|
|
|
|
|
c = get_symbol_end ();
|
|
|
|
|
symbolP = symbol_find_or_make (name);
|
1999-06-05 18:19:09 +00:00
|
|
|
|
S_SET_EXTERNAL (symbolP);
|
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
*input_line_pointer = c;
|
|
|
|
|
SKIP_WHITESPACE ();
|
1999-06-05 18:19:09 +00:00
|
|
|
|
c = *input_line_pointer;
|
1999-05-03 07:29:11 +00:00
|
|
|
|
if (c == ',')
|
|
|
|
|
{
|
|
|
|
|
input_line_pointer++;
|
|
|
|
|
SKIP_WHITESPACE ();
|
|
|
|
|
if (*input_line_pointer == '\n')
|
|
|
|
|
c = '\n';
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
while (c == ',');
|
|
|
|
|
|
|
|
|
|
demand_empty_rest_of_line ();
|
|
|
|
|
|
|
|
|
|
if (flag_mri)
|
|
|
|
|
mri_comment_end (stop, stopc);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Handle the MRI IRP and IRPC pseudo-ops. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
s_irp (irpc)
|
|
|
|
|
int irpc;
|
|
|
|
|
{
|
|
|
|
|
char *file;
|
|
|
|
|
unsigned int line;
|
|
|
|
|
sb s;
|
|
|
|
|
const char *err;
|
|
|
|
|
sb out;
|
|
|
|
|
|
|
|
|
|
as_where (&file, &line);
|
|
|
|
|
|
|
|
|
|
sb_new (&s);
|
2000-07-20 17:12:25 +00:00
|
|
|
|
while (!is_end_of_line[(unsigned char) *input_line_pointer])
|
1999-05-03 07:29:11 +00:00
|
|
|
|
sb_add_char (&s, *input_line_pointer++);
|
|
|
|
|
|
|
|
|
|
sb_new (&out);
|
|
|
|
|
|
|
|
|
|
err = expand_irp (irpc, 0, &s, &out, get_line_sb, '\0');
|
|
|
|
|
if (err != NULL)
|
|
|
|
|
as_bad_where (file, line, "%s", err);
|
|
|
|
|
|
|
|
|
|
sb_kill (&s);
|
|
|
|
|
|
2000-03-26 14:47:33 +00:00
|
|
|
|
input_scrub_include_sb (&out, input_line_pointer, 1);
|
1999-05-03 07:29:11 +00:00
|
|
|
|
sb_kill (&out);
|
|
|
|
|
buffer_limit = input_scrub_next_buffer (&input_line_pointer);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Handle the .linkonce pseudo-op. This tells the assembler to mark
|
|
|
|
|
the section to only be linked once. However, this is not supported
|
|
|
|
|
by most object file formats. This takes an optional argument,
|
|
|
|
|
which is what to do about duplicates. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
s_linkonce (ignore)
|
1999-07-11 20:20:04 +00:00
|
|
|
|
int ignore ATTRIBUTE_UNUSED;
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
enum linkonce_type type;
|
|
|
|
|
|
|
|
|
|
SKIP_WHITESPACE ();
|
|
|
|
|
|
|
|
|
|
type = LINKONCE_DISCARD;
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
if (!is_end_of_line[(unsigned char) *input_line_pointer])
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
char *s;
|
|
|
|
|
char c;
|
|
|
|
|
|
|
|
|
|
s = input_line_pointer;
|
|
|
|
|
c = get_symbol_end ();
|
|
|
|
|
if (strcasecmp (s, "discard") == 0)
|
|
|
|
|
type = LINKONCE_DISCARD;
|
|
|
|
|
else if (strcasecmp (s, "one_only") == 0)
|
|
|
|
|
type = LINKONCE_ONE_ONLY;
|
|
|
|
|
else if (strcasecmp (s, "same_size") == 0)
|
|
|
|
|
type = LINKONCE_SAME_SIZE;
|
|
|
|
|
else if (strcasecmp (s, "same_contents") == 0)
|
|
|
|
|
type = LINKONCE_SAME_CONTENTS;
|
|
|
|
|
else
|
|
|
|
|
as_warn (_("unrecognized .linkonce type `%s'"), s);
|
|
|
|
|
|
|
|
|
|
*input_line_pointer = c;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#ifdef obj_handle_link_once
|
|
|
|
|
obj_handle_link_once (type);
|
|
|
|
|
#else /* ! defined (obj_handle_link_once) */
|
|
|
|
|
#ifdef BFD_ASSEMBLER
|
|
|
|
|
{
|
|
|
|
|
flagword flags;
|
|
|
|
|
|
|
|
|
|
if ((bfd_applicable_section_flags (stdoutput) & SEC_LINK_ONCE) == 0)
|
|
|
|
|
as_warn (_(".linkonce is not supported for this object file format"));
|
|
|
|
|
|
|
|
|
|
flags = bfd_get_section_flags (stdoutput, now_seg);
|
|
|
|
|
flags |= SEC_LINK_ONCE;
|
|
|
|
|
switch (type)
|
|
|
|
|
{
|
|
|
|
|
default:
|
|
|
|
|
abort ();
|
|
|
|
|
case LINKONCE_DISCARD:
|
|
|
|
|
flags |= SEC_LINK_DUPLICATES_DISCARD;
|
|
|
|
|
break;
|
|
|
|
|
case LINKONCE_ONE_ONLY:
|
|
|
|
|
flags |= SEC_LINK_DUPLICATES_ONE_ONLY;
|
|
|
|
|
break;
|
|
|
|
|
case LINKONCE_SAME_SIZE:
|
|
|
|
|
flags |= SEC_LINK_DUPLICATES_SAME_SIZE;
|
|
|
|
|
break;
|
|
|
|
|
case LINKONCE_SAME_CONTENTS:
|
|
|
|
|
flags |= SEC_LINK_DUPLICATES_SAME_CONTENTS;
|
|
|
|
|
break;
|
|
|
|
|
}
|
2000-07-20 17:12:25 +00:00
|
|
|
|
if (!bfd_set_section_flags (stdoutput, now_seg, flags))
|
1999-05-03 07:29:11 +00:00
|
|
|
|
as_bad (_("bfd_set_section_flags: %s"),
|
|
|
|
|
bfd_errmsg (bfd_get_error ()));
|
|
|
|
|
}
|
|
|
|
|
#else /* ! defined (BFD_ASSEMBLER) */
|
|
|
|
|
as_warn (_(".linkonce is not supported for this object file format"));
|
|
|
|
|
#endif /* ! defined (BFD_ASSEMBLER) */
|
|
|
|
|
#endif /* ! defined (obj_handle_link_once) */
|
|
|
|
|
|
|
|
|
|
demand_empty_rest_of_line ();
|
|
|
|
|
}
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
static void
|
1999-05-03 07:29:11 +00:00
|
|
|
|
s_lcomm_internal (needs_align, bytes_p)
|
|
|
|
|
/* 1 if this was a ".bss" directive, which may require a 3rd argument
|
2000-07-20 17:12:25 +00:00
|
|
|
|
(alignment); 0 if it was an ".lcomm" (2 args only). */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
int needs_align;
|
|
|
|
|
/* 1 if the alignment value should be interpreted as the byte boundary,
|
2000-07-20 17:12:25 +00:00
|
|
|
|
rather than the power of 2. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
int bytes_p;
|
|
|
|
|
{
|
|
|
|
|
register char *name;
|
|
|
|
|
register char c;
|
|
|
|
|
register char *p;
|
|
|
|
|
register int temp;
|
|
|
|
|
register symbolS *symbolP;
|
|
|
|
|
segT current_seg = now_seg;
|
|
|
|
|
subsegT current_subseg = now_subseg;
|
|
|
|
|
const int max_alignment = 15;
|
|
|
|
|
int align = 0;
|
|
|
|
|
segT bss_seg = bss_section;
|
|
|
|
|
|
|
|
|
|
name = input_line_pointer;
|
|
|
|
|
c = get_symbol_end ();
|
|
|
|
|
p = input_line_pointer;
|
|
|
|
|
*p = c;
|
|
|
|
|
SKIP_WHITESPACE ();
|
|
|
|
|
|
|
|
|
|
/* Accept an optional comma after the name. The comma used to be
|
|
|
|
|
required, but Irix 5 cc does not generate it. */
|
|
|
|
|
if (*input_line_pointer == ',')
|
|
|
|
|
{
|
|
|
|
|
++input_line_pointer;
|
|
|
|
|
SKIP_WHITESPACE ();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (*input_line_pointer == '\n')
|
|
|
|
|
{
|
|
|
|
|
as_bad (_("Missing size expression"));
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if ((temp = get_absolute_expression ()) < 0)
|
|
|
|
|
{
|
|
|
|
|
as_warn (_("BSS length (%d.) <0! Ignored."), temp);
|
|
|
|
|
ignore_rest_of_line ();
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#if defined (TC_MIPS) || defined (TC_ALPHA)
|
|
|
|
|
if (OUTPUT_FLAVOR == bfd_target_ecoff_flavour
|
|
|
|
|
|| OUTPUT_FLAVOR == bfd_target_elf_flavour)
|
|
|
|
|
{
|
|
|
|
|
/* For MIPS and Alpha ECOFF or ELF, small objects are put in .sbss. */
|
|
|
|
|
if (temp <= bfd_get_gp_size (stdoutput))
|
|
|
|
|
{
|
|
|
|
|
bss_seg = subseg_new (".sbss", 1);
|
|
|
|
|
seg_info (bss_seg)->bss = 1;
|
|
|
|
|
#ifdef BFD_ASSEMBLER
|
2000-07-20 17:12:25 +00:00
|
|
|
|
if (!bfd_set_section_flags (stdoutput, bss_seg, SEC_ALLOC))
|
1999-05-03 07:29:11 +00:00
|
|
|
|
as_warn (_("error setting flags for \".sbss\": %s"),
|
|
|
|
|
bfd_errmsg (bfd_get_error ()));
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
#endif
|
2000-03-13 20:46:07 +00:00
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
if (!needs_align)
|
|
|
|
|
{
|
|
|
|
|
TC_IMPLICIT_LCOMM_ALIGNMENT (temp, align);
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* Still zero unless TC_IMPLICIT_LCOMM_ALIGNMENT set it. */
|
|
|
|
|
if (align)
|
|
|
|
|
record_alignment (bss_seg, align);
|
|
|
|
|
}
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
if (needs_align)
|
|
|
|
|
{
|
|
|
|
|
align = 0;
|
|
|
|
|
SKIP_WHITESPACE ();
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
if (*input_line_pointer != ',')
|
|
|
|
|
{
|
|
|
|
|
as_bad (_("Expected comma after size"));
|
|
|
|
|
ignore_rest_of_line ();
|
|
|
|
|
return;
|
|
|
|
|
}
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
input_line_pointer++;
|
|
|
|
|
SKIP_WHITESPACE ();
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
if (*input_line_pointer == '\n')
|
|
|
|
|
{
|
|
|
|
|
as_bad (_("Missing alignment"));
|
|
|
|
|
return;
|
|
|
|
|
}
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
align = get_absolute_expression ();
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
if (bytes_p)
|
|
|
|
|
{
|
|
|
|
|
/* Convert to a power of 2. */
|
|
|
|
|
if (align != 0)
|
|
|
|
|
{
|
|
|
|
|
unsigned int i;
|
|
|
|
|
|
|
|
|
|
for (i = 0; (align & 1) == 0; align >>= 1, ++i)
|
|
|
|
|
;
|
|
|
|
|
if (align != 1)
|
|
|
|
|
as_bad (_("Alignment not a power of 2"));
|
|
|
|
|
align = i;
|
|
|
|
|
}
|
|
|
|
|
}
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
if (align > max_alignment)
|
|
|
|
|
{
|
|
|
|
|
align = max_alignment;
|
|
|
|
|
as_warn (_("Alignment too large: %d. assumed."), align);
|
|
|
|
|
}
|
|
|
|
|
else if (align < 0)
|
|
|
|
|
{
|
|
|
|
|
align = 0;
|
|
|
|
|
as_warn (_("Alignment negative. 0 assumed."));
|
|
|
|
|
}
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
record_alignment (bss_seg, align);
|
2000-07-20 17:12:25 +00:00
|
|
|
|
}
|
1999-05-03 07:29:11 +00:00
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
/* Assume some objects may require alignment on some systems. */
|
|
|
|
|
#if defined (TC_ALPHA) && ! defined (VMS)
|
|
|
|
|
if (temp > 1)
|
|
|
|
|
{
|
|
|
|
|
align = ffs (temp) - 1;
|
|
|
|
|
if (temp % (1 << align))
|
|
|
|
|
abort ();
|
|
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
*p = 0;
|
|
|
|
|
symbolP = symbol_find_or_make (name);
|
|
|
|
|
*p = c;
|
|
|
|
|
|
|
|
|
|
if (
|
2000-01-26 22:48:31 +00:00
|
|
|
|
#if (defined (OBJ_AOUT) || defined (OBJ_MAYBE_AOUT) \
|
|
|
|
|
|| defined (OBJ_BOUT) || defined (OBJ_MAYBE_BOUT))
|
|
|
|
|
#ifdef BFD_ASSEMBLER
|
|
|
|
|
(OUTPUT_FLAVOR != bfd_target_aout_flavour
|
|
|
|
|
|| (S_GET_OTHER (symbolP) == 0 && S_GET_DESC (symbolP) == 0)) &&
|
|
|
|
|
#else
|
|
|
|
|
(S_GET_OTHER (symbolP) == 0 && S_GET_DESC (symbolP) == 0) &&
|
|
|
|
|
#endif
|
|
|
|
|
#endif
|
|
|
|
|
(S_GET_SEGMENT (symbolP) == bss_seg
|
|
|
|
|
|| (!S_IS_DEFINED (symbolP) && S_GET_VALUE (symbolP) == 0)))
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
char *pfrag;
|
|
|
|
|
|
|
|
|
|
subseg_set (bss_seg, 1);
|
|
|
|
|
|
|
|
|
|
if (align)
|
|
|
|
|
frag_align (align, 0, 0);
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
2000-11-07 01:18:45 +00:00
|
|
|
|
/* Detach from old frag. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
if (S_GET_SEGMENT (symbolP) == bss_seg)
|
1999-06-03 00:24:14 +00:00
|
|
|
|
symbol_get_frag (symbolP)->fr_symbol = NULL;
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
1999-06-03 00:24:14 +00:00
|
|
|
|
symbol_set_frag (symbolP, frag_now);
|
2000-07-20 17:12:25 +00:00
|
|
|
|
pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP,
|
1999-05-03 07:29:11 +00:00
|
|
|
|
(offsetT) temp, (char *) 0);
|
|
|
|
|
*pfrag = 0;
|
|
|
|
|
|
|
|
|
|
S_SET_SEGMENT (symbolP, bss_seg);
|
|
|
|
|
|
|
|
|
|
#ifdef OBJ_COFF
|
|
|
|
|
/* The symbol may already have been created with a preceding
|
|
|
|
|
".globl" directive -- be careful not to step on storage class
|
2000-07-20 17:12:25 +00:00
|
|
|
|
in that case. Otherwise, set it to static. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
if (S_GET_STORAGE_CLASS (symbolP) != C_EXT)
|
|
|
|
|
{
|
|
|
|
|
S_SET_STORAGE_CLASS (symbolP, C_STAT);
|
|
|
|
|
}
|
|
|
|
|
#endif /* OBJ_COFF */
|
|
|
|
|
|
|
|
|
|
#ifdef S_SET_SIZE
|
|
|
|
|
S_SET_SIZE (symbolP, temp);
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
as_bad (_("Ignoring attempt to re-define symbol `%s'."),
|
|
|
|
|
S_GET_NAME (symbolP));
|
|
|
|
|
|
|
|
|
|
subseg_set (current_seg, current_subseg);
|
|
|
|
|
|
|
|
|
|
demand_empty_rest_of_line ();
|
2000-07-20 17:12:25 +00:00
|
|
|
|
}
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
s_lcomm (needs_align)
|
|
|
|
|
int needs_align;
|
|
|
|
|
{
|
|
|
|
|
s_lcomm_internal (needs_align, 0);
|
|
|
|
|
}
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
void
|
|
|
|
|
s_lcomm_bytes (needs_align)
|
1999-05-03 07:29:11 +00:00
|
|
|
|
int needs_align;
|
|
|
|
|
{
|
|
|
|
|
s_lcomm_internal (needs_align, 1);
|
|
|
|
|
}
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
void
|
1999-05-03 07:29:11 +00:00
|
|
|
|
s_lsym (ignore)
|
1999-07-11 20:20:04 +00:00
|
|
|
|
int ignore ATTRIBUTE_UNUSED;
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
register char *name;
|
|
|
|
|
register char c;
|
|
|
|
|
register char *p;
|
|
|
|
|
expressionS exp;
|
|
|
|
|
register symbolS *symbolP;
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* We permit ANY defined expression: BSD4.2 demands constants. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
name = input_line_pointer;
|
|
|
|
|
c = get_symbol_end ();
|
|
|
|
|
p = input_line_pointer;
|
|
|
|
|
*p = c;
|
|
|
|
|
SKIP_WHITESPACE ();
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
if (*input_line_pointer != ',')
|
|
|
|
|
{
|
|
|
|
|
*p = 0;
|
|
|
|
|
as_bad (_("Expected comma after name \"%s\""), name);
|
|
|
|
|
*p = c;
|
|
|
|
|
ignore_rest_of_line ();
|
|
|
|
|
return;
|
|
|
|
|
}
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
input_line_pointer++;
|
|
|
|
|
expression (&exp);
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
if (exp.X_op != O_constant
|
|
|
|
|
&& exp.X_op != O_register)
|
|
|
|
|
{
|
|
|
|
|
as_bad (_("bad expression"));
|
|
|
|
|
ignore_rest_of_line ();
|
|
|
|
|
return;
|
|
|
|
|
}
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
*p = 0;
|
|
|
|
|
symbolP = symbol_find_or_make (name);
|
|
|
|
|
|
|
|
|
|
/* FIXME-SOON I pulled a (&& symbolP->sy_other == 0 &&
|
|
|
|
|
symbolP->sy_desc == 0) out of this test because coff doesn't have
|
|
|
|
|
those fields, and I can't see when they'd ever be tripped. I
|
|
|
|
|
don't think I understand why they were here so I may have
|
|
|
|
|
introduced a bug. As recently as 1.37 didn't have this test
|
2000-07-20 17:12:25 +00:00
|
|
|
|
anyway. xoxorich. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
if (S_GET_SEGMENT (symbolP) == undefined_section
|
|
|
|
|
&& S_GET_VALUE (symbolP) == 0)
|
|
|
|
|
{
|
|
|
|
|
/* The name might be an undefined .global symbol; be sure to
|
2000-07-20 17:12:25 +00:00
|
|
|
|
keep the "external" bit. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
S_SET_SEGMENT (symbolP,
|
|
|
|
|
(exp.X_op == O_constant
|
|
|
|
|
? absolute_section
|
|
|
|
|
: reg_section));
|
|
|
|
|
S_SET_VALUE (symbolP, (valueT) exp.X_add_number);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
as_bad (_("Symbol %s already defined"), name);
|
|
|
|
|
}
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
*p = c;
|
|
|
|
|
demand_empty_rest_of_line ();
|
2000-07-20 17:12:25 +00:00
|
|
|
|
}
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
/* Read a line into an sb. */
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
get_line_sb (line)
|
|
|
|
|
sb *line;
|
|
|
|
|
{
|
|
|
|
|
char quote1, quote2, inquote;
|
|
|
|
|
|
|
|
|
|
if (input_line_pointer[-1] == '\n')
|
|
|
|
|
bump_line_counters ();
|
|
|
|
|
|
|
|
|
|
if (input_line_pointer >= buffer_limit)
|
|
|
|
|
{
|
|
|
|
|
buffer_limit = input_scrub_next_buffer (&input_line_pointer);
|
|
|
|
|
if (buffer_limit == 0)
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* If app.c sets any other characters to LEX_IS_STRINGQUOTE, this
|
|
|
|
|
code needs to be changed. */
|
2000-07-20 17:12:25 +00:00
|
|
|
|
if (!flag_m68k_mri)
|
1999-05-03 07:29:11 +00:00
|
|
|
|
quote1 = '"';
|
|
|
|
|
else
|
|
|
|
|
quote1 = '\0';
|
|
|
|
|
|
|
|
|
|
quote2 = '\0';
|
|
|
|
|
if (flag_m68k_mri)
|
|
|
|
|
quote2 = '\'';
|
|
|
|
|
#ifdef LEX_IS_STRINGQUOTE
|
|
|
|
|
quote2 = '\'';
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
inquote = '\0';
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
while (!is_end_of_line[(unsigned char) *input_line_pointer]
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|| (inquote != '\0' && *input_line_pointer != '\n'))
|
|
|
|
|
{
|
|
|
|
|
if (inquote == *input_line_pointer)
|
|
|
|
|
inquote = '\0';
|
|
|
|
|
else if (inquote == '\0')
|
|
|
|
|
{
|
|
|
|
|
if (*input_line_pointer == quote1)
|
|
|
|
|
inquote = quote1;
|
|
|
|
|
else if (*input_line_pointer == quote2)
|
|
|
|
|
inquote = quote2;
|
|
|
|
|
}
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
sb_add_char (line, *input_line_pointer++);
|
|
|
|
|
}
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
while (input_line_pointer < buffer_limit
|
|
|
|
|
&& is_end_of_line[(unsigned char) *input_line_pointer])
|
|
|
|
|
{
|
|
|
|
|
if (input_line_pointer[-1] == '\n')
|
|
|
|
|
bump_line_counters ();
|
|
|
|
|
++input_line_pointer;
|
|
|
|
|
}
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Define a macro. This is an interface to macro.c, which is shared
|
|
|
|
|
between gas and gasp. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
s_macro (ignore)
|
1999-07-11 20:20:04 +00:00
|
|
|
|
int ignore ATTRIBUTE_UNUSED;
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
char *file;
|
|
|
|
|
unsigned int line;
|
|
|
|
|
sb s;
|
|
|
|
|
sb label;
|
|
|
|
|
const char *err;
|
|
|
|
|
const char *name;
|
|
|
|
|
|
|
|
|
|
as_where (&file, &line);
|
|
|
|
|
|
|
|
|
|
sb_new (&s);
|
2000-07-20 17:12:25 +00:00
|
|
|
|
while (!is_end_of_line[(unsigned char) *input_line_pointer])
|
1999-05-03 07:29:11 +00:00
|
|
|
|
sb_add_char (&s, *input_line_pointer++);
|
|
|
|
|
|
|
|
|
|
sb_new (&label);
|
|
|
|
|
if (line_label != NULL)
|
|
|
|
|
sb_add_string (&label, S_GET_NAME (line_label));
|
|
|
|
|
|
|
|
|
|
err = define_macro (0, &s, &label, get_line_sb, &name);
|
|
|
|
|
if (err != NULL)
|
|
|
|
|
as_bad_where (file, line, "%s", err);
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
if (line_label != NULL)
|
|
|
|
|
{
|
|
|
|
|
S_SET_SEGMENT (line_label, undefined_section);
|
|
|
|
|
S_SET_VALUE (line_label, 0);
|
1999-06-03 00:24:14 +00:00
|
|
|
|
symbol_set_frag (line_label, &zero_address_frag);
|
1999-05-03 07:29:11 +00:00
|
|
|
|
}
|
|
|
|
|
|
2000-02-24 01:56:31 +00:00
|
|
|
|
if (((NO_PSEUDO_DOT || flag_m68k_mri)
|
1999-05-03 07:29:11 +00:00
|
|
|
|
&& hash_find (po_hash, name) != NULL)
|
2000-07-20 17:12:25 +00:00
|
|
|
|
|| (!flag_m68k_mri
|
1999-05-03 07:29:11 +00:00
|
|
|
|
&& *name == '.'
|
|
|
|
|
&& hash_find (po_hash, name + 1) != NULL))
|
|
|
|
|
as_warn (_("attempt to redefine pseudo-op `%s' ignored"),
|
|
|
|
|
name);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
sb_kill (&s);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Handle the .mexit pseudo-op, which immediately exits a macro
|
|
|
|
|
expansion. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
s_mexit (ignore)
|
1999-07-11 20:20:04 +00:00
|
|
|
|
int ignore ATTRIBUTE_UNUSED;
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
cond_exit_macro (macro_nest);
|
|
|
|
|
buffer_limit = input_scrub_next_buffer (&input_line_pointer);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Switch in and out of MRI mode. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
s_mri (ignore)
|
1999-07-11 20:20:04 +00:00
|
|
|
|
int ignore ATTRIBUTE_UNUSED;
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
int on, old_flag;
|
|
|
|
|
|
|
|
|
|
on = get_absolute_expression ();
|
|
|
|
|
old_flag = flag_mri;
|
|
|
|
|
if (on != 0)
|
|
|
|
|
{
|
|
|
|
|
flag_mri = 1;
|
|
|
|
|
#ifdef TC_M68K
|
|
|
|
|
flag_m68k_mri = 1;
|
|
|
|
|
#endif
|
|
|
|
|
macro_mri_mode (1);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
flag_mri = 0;
|
2000-02-24 01:56:31 +00:00
|
|
|
|
#ifdef TC_M68K
|
1999-05-03 07:29:11 +00:00
|
|
|
|
flag_m68k_mri = 0;
|
2000-02-24 01:56:31 +00:00
|
|
|
|
#endif
|
1999-05-03 07:29:11 +00:00
|
|
|
|
macro_mri_mode (0);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Operator precedence changes in m68k MRI mode, so we need to
|
|
|
|
|
update the operator rankings. */
|
|
|
|
|
expr_set_precedence ();
|
|
|
|
|
|
|
|
|
|
#ifdef MRI_MODE_CHANGE
|
|
|
|
|
if (on != old_flag)
|
|
|
|
|
MRI_MODE_CHANGE (on);
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
demand_empty_rest_of_line ();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Handle changing the location counter. */
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
do_org (segment, exp, fill)
|
|
|
|
|
segT segment;
|
|
|
|
|
expressionS *exp;
|
|
|
|
|
int fill;
|
|
|
|
|
{
|
|
|
|
|
if (segment != now_seg && segment != absolute_section)
|
|
|
|
|
as_bad (_("invalid segment \"%s\"; segment \"%s\" assumed"),
|
|
|
|
|
segment_name (segment), segment_name (now_seg));
|
|
|
|
|
|
|
|
|
|
if (now_seg == absolute_section)
|
|
|
|
|
{
|
|
|
|
|
if (fill != 0)
|
|
|
|
|
as_warn (_("ignoring fill value in absolute section"));
|
|
|
|
|
if (exp->X_op != O_constant)
|
|
|
|
|
{
|
|
|
|
|
as_bad (_("only constant offsets supported in absolute section"));
|
|
|
|
|
exp->X_add_number = 0;
|
|
|
|
|
}
|
|
|
|
|
abs_section_offset = exp->X_add_number;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
char *p;
|
2001-03-17 03:02:06 +00:00
|
|
|
|
symbolS *sym = exp->X_add_symbol;
|
|
|
|
|
offsetT off = exp->X_add_number * OCTETS_PER_BYTE;
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
2001-03-17 03:02:06 +00:00
|
|
|
|
if (exp->X_op != O_constant && exp->X_op != O_symbol)
|
|
|
|
|
{
|
|
|
|
|
/* Handle complex expressions. */
|
|
|
|
|
sym = make_expr_symbol (exp);
|
|
|
|
|
off = 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
p = frag_var (rs_org, 1, 1, (relax_substateT) 0, sym, off, (char *) 0);
|
1999-05-03 07:29:11 +00:00
|
|
|
|
*p = fill;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
void
|
1999-05-03 07:29:11 +00:00
|
|
|
|
s_org (ignore)
|
1999-07-11 20:20:04 +00:00
|
|
|
|
int ignore ATTRIBUTE_UNUSED;
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
register segT segment;
|
|
|
|
|
expressionS exp;
|
|
|
|
|
register long temp_fill;
|
|
|
|
|
|
|
|
|
|
#ifdef md_flush_pending_output
|
|
|
|
|
md_flush_pending_output ();
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/* The m68k MRI assembler has a different meaning for .org. It
|
|
|
|
|
means to create an absolute section at a given address. We can't
|
|
|
|
|
support that--use a linker script instead. */
|
|
|
|
|
if (flag_m68k_mri)
|
|
|
|
|
{
|
|
|
|
|
as_bad (_("MRI style ORG pseudo-op not supported"));
|
|
|
|
|
ignore_rest_of_line ();
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Don't believe the documentation of BSD 4.2 AS. There is no such
|
|
|
|
|
thing as a sub-segment-relative origin. Any absolute origin is
|
|
|
|
|
given a warning, then assumed to be segment-relative. Any
|
|
|
|
|
segmented origin expression ("foo+42") had better be in the right
|
|
|
|
|
segment or the .org is ignored.
|
|
|
|
|
|
|
|
|
|
BSD 4.2 AS warns if you try to .org backwards. We cannot because
|
|
|
|
|
we never know sub-segment sizes when we are reading code. BSD
|
|
|
|
|
will crash trying to emit negative numbers of filler bytes in
|
|
|
|
|
certain .orgs. We don't crash, but see as-write for that code.
|
|
|
|
|
|
|
|
|
|
Don't make frag if need_pass_2==1. */
|
|
|
|
|
segment = get_known_segmented_expression (&exp);
|
|
|
|
|
if (*input_line_pointer == ',')
|
|
|
|
|
{
|
|
|
|
|
input_line_pointer++;
|
|
|
|
|
temp_fill = get_absolute_expression ();
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
temp_fill = 0;
|
|
|
|
|
|
|
|
|
|
if (!need_pass_2)
|
|
|
|
|
do_org (segment, &exp, temp_fill);
|
|
|
|
|
|
|
|
|
|
demand_empty_rest_of_line ();
|
2000-07-20 17:12:25 +00:00
|
|
|
|
}
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
/* Handle parsing for the MRI SECT/SECTION pseudo-op. This should be
|
|
|
|
|
called by the obj-format routine which handles section changing
|
|
|
|
|
when in MRI mode. It will create a new section, and return it. It
|
|
|
|
|
will set *TYPE to the section type: one of 'C' (code), 'D' (data),
|
|
|
|
|
'M' (mixed), or 'R' (romable). If BFD_ASSEMBLER is defined, the
|
|
|
|
|
flags will be set in the section. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
s_mri_sect (type)
|
1999-07-11 20:20:04 +00:00
|
|
|
|
char *type ATTRIBUTE_UNUSED;
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
#ifdef TC_M68K
|
|
|
|
|
|
|
|
|
|
char *name;
|
|
|
|
|
char c;
|
|
|
|
|
segT seg;
|
|
|
|
|
|
|
|
|
|
SKIP_WHITESPACE ();
|
2000-07-20 17:12:25 +00:00
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
name = input_line_pointer;
|
2000-07-20 17:12:25 +00:00
|
|
|
|
if (!isdigit ((unsigned char) *name))
|
1999-05-03 07:29:11 +00:00
|
|
|
|
c = get_symbol_end ();
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
do
|
|
|
|
|
{
|
|
|
|
|
++input_line_pointer;
|
|
|
|
|
}
|
|
|
|
|
while (isdigit ((unsigned char) *input_line_pointer));
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
c = *input_line_pointer;
|
|
|
|
|
*input_line_pointer = '\0';
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
name = xstrdup (name);
|
|
|
|
|
|
|
|
|
|
*input_line_pointer = c;
|
|
|
|
|
|
|
|
|
|
seg = subseg_new (name, 0);
|
|
|
|
|
|
|
|
|
|
if (*input_line_pointer == ',')
|
|
|
|
|
{
|
|
|
|
|
int align;
|
|
|
|
|
|
|
|
|
|
++input_line_pointer;
|
|
|
|
|
align = get_absolute_expression ();
|
|
|
|
|
record_alignment (seg, align);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
*type = 'C';
|
|
|
|
|
if (*input_line_pointer == ',')
|
|
|
|
|
{
|
|
|
|
|
c = *++input_line_pointer;
|
|
|
|
|
c = toupper ((unsigned char) c);
|
|
|
|
|
if (c == 'C' || c == 'D' || c == 'M' || c == 'R')
|
|
|
|
|
*type = c;
|
|
|
|
|
else
|
|
|
|
|
as_bad (_("unrecognized section type"));
|
|
|
|
|
++input_line_pointer;
|
|
|
|
|
|
|
|
|
|
#ifdef BFD_ASSEMBLER
|
|
|
|
|
{
|
|
|
|
|
flagword flags;
|
|
|
|
|
|
|
|
|
|
flags = SEC_NO_FLAGS;
|
|
|
|
|
if (*type == 'C')
|
|
|
|
|
flags = SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE;
|
|
|
|
|
else if (*type == 'D' || *type == 'M')
|
|
|
|
|
flags = SEC_ALLOC | SEC_LOAD | SEC_DATA;
|
|
|
|
|
else if (*type == 'R')
|
|
|
|
|
flags = SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_READONLY | SEC_ROM;
|
|
|
|
|
if (flags != SEC_NO_FLAGS)
|
|
|
|
|
{
|
2000-07-20 17:12:25 +00:00
|
|
|
|
if (!bfd_set_section_flags (stdoutput, seg, flags))
|
1999-05-03 07:29:11 +00:00
|
|
|
|
as_warn (_("error setting flags for \"%s\": %s"),
|
|
|
|
|
bfd_section_name (stdoutput, seg),
|
|
|
|
|
bfd_errmsg (bfd_get_error ()));
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Ignore the HP type. */
|
|
|
|
|
if (*input_line_pointer == ',')
|
|
|
|
|
input_line_pointer += 2;
|
|
|
|
|
|
|
|
|
|
demand_empty_rest_of_line ();
|
|
|
|
|
|
|
|
|
|
#else /* ! TC_M68K */
|
|
|
|
|
#ifdef TC_I960
|
|
|
|
|
|
|
|
|
|
char *name;
|
|
|
|
|
char c;
|
|
|
|
|
segT seg;
|
|
|
|
|
|
|
|
|
|
SKIP_WHITESPACE ();
|
|
|
|
|
|
|
|
|
|
name = input_line_pointer;
|
|
|
|
|
c = get_symbol_end ();
|
|
|
|
|
|
|
|
|
|
name = xstrdup (name);
|
|
|
|
|
|
|
|
|
|
*input_line_pointer = c;
|
|
|
|
|
|
|
|
|
|
seg = subseg_new (name, 0);
|
|
|
|
|
|
|
|
|
|
if (*input_line_pointer != ',')
|
|
|
|
|
*type = 'C';
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
char *sectype;
|
|
|
|
|
|
|
|
|
|
++input_line_pointer;
|
|
|
|
|
SKIP_WHITESPACE ();
|
|
|
|
|
sectype = input_line_pointer;
|
|
|
|
|
c = get_symbol_end ();
|
|
|
|
|
if (*sectype == '\0')
|
|
|
|
|
*type = 'C';
|
|
|
|
|
else if (strcasecmp (sectype, "text") == 0)
|
|
|
|
|
*type = 'C';
|
|
|
|
|
else if (strcasecmp (sectype, "data") == 0)
|
|
|
|
|
*type = 'D';
|
|
|
|
|
else if (strcasecmp (sectype, "romdata") == 0)
|
|
|
|
|
*type = 'R';
|
|
|
|
|
else
|
|
|
|
|
as_warn (_("unrecognized section type `%s'"), sectype);
|
|
|
|
|
*input_line_pointer = c;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (*input_line_pointer == ',')
|
|
|
|
|
{
|
|
|
|
|
char *seccmd;
|
|
|
|
|
|
|
|
|
|
++input_line_pointer;
|
|
|
|
|
SKIP_WHITESPACE ();
|
|
|
|
|
seccmd = input_line_pointer;
|
|
|
|
|
c = get_symbol_end ();
|
|
|
|
|
if (strcasecmp (seccmd, "absolute") == 0)
|
|
|
|
|
{
|
|
|
|
|
as_bad (_("absolute sections are not supported"));
|
|
|
|
|
*input_line_pointer = c;
|
|
|
|
|
ignore_rest_of_line ();
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
else if (strcasecmp (seccmd, "align") == 0)
|
|
|
|
|
{
|
|
|
|
|
int align;
|
|
|
|
|
|
|
|
|
|
*input_line_pointer = c;
|
|
|
|
|
align = get_absolute_expression ();
|
|
|
|
|
record_alignment (seg, align);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
as_warn (_("unrecognized section command `%s'"), seccmd);
|
|
|
|
|
*input_line_pointer = c;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
demand_empty_rest_of_line ();
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
#else /* ! TC_I960 */
|
|
|
|
|
/* The MRI assembler seems to use different forms of .sect for
|
|
|
|
|
different targets. */
|
|
|
|
|
as_bad ("MRI mode not supported for this target");
|
|
|
|
|
ignore_rest_of_line ();
|
|
|
|
|
#endif /* ! TC_I960 */
|
|
|
|
|
#endif /* ! TC_M68K */
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Handle the .print pseudo-op. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
s_print (ignore)
|
1999-07-11 20:20:04 +00:00
|
|
|
|
int ignore ATTRIBUTE_UNUSED;
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
char *s;
|
|
|
|
|
int len;
|
|
|
|
|
|
|
|
|
|
s = demand_copy_C_string (&len);
|
|
|
|
|
printf ("%s\n", s);
|
|
|
|
|
demand_empty_rest_of_line ();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Handle the .purgem pseudo-op. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
s_purgem (ignore)
|
1999-07-11 20:20:04 +00:00
|
|
|
|
int ignore ATTRIBUTE_UNUSED;
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
if (is_it_end_of_statement ())
|
|
|
|
|
{
|
|
|
|
|
demand_empty_rest_of_line ();
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
do
|
|
|
|
|
{
|
|
|
|
|
char *name;
|
|
|
|
|
char c;
|
|
|
|
|
|
|
|
|
|
SKIP_WHITESPACE ();
|
|
|
|
|
name = input_line_pointer;
|
|
|
|
|
c = get_symbol_end ();
|
|
|
|
|
delete_macro (name);
|
|
|
|
|
*input_line_pointer = c;
|
|
|
|
|
SKIP_WHITESPACE ();
|
|
|
|
|
}
|
|
|
|
|
while (*input_line_pointer++ == ',');
|
|
|
|
|
|
|
|
|
|
--input_line_pointer;
|
|
|
|
|
demand_empty_rest_of_line ();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Handle the .rept pseudo-op. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
s_rept (ignore)
|
1999-07-11 20:20:04 +00:00
|
|
|
|
int ignore ATTRIBUTE_UNUSED;
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
int count;
|
|
|
|
|
|
|
|
|
|
count = get_absolute_expression ();
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
do_repeat (count, "REPT", "ENDR");
|
2000-02-08 19:06:00 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* This function provides a generic repeat block implementation. It allows
|
2000-07-20 17:12:25 +00:00
|
|
|
|
different directives to be used as the start/end keys. */
|
2000-02-08 19:06:00 +00:00
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
do_repeat (count, start, end)
|
2000-07-20 17:12:25 +00:00
|
|
|
|
int count;
|
|
|
|
|
const char *start;
|
|
|
|
|
const char *end;
|
2000-02-08 19:06:00 +00:00
|
|
|
|
{
|
|
|
|
|
sb one;
|
|
|
|
|
sb many;
|
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
sb_new (&one);
|
2000-07-20 17:12:25 +00:00
|
|
|
|
if (!buffer_and_nest (start, end, &one, get_line_sb))
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
2000-02-08 19:06:00 +00:00
|
|
|
|
as_bad (_("%s without %s"), start, end);
|
1999-05-03 07:29:11 +00:00
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
sb_new (&many);
|
|
|
|
|
while (count-- > 0)
|
|
|
|
|
sb_add_sb (&many, &one);
|
|
|
|
|
|
|
|
|
|
sb_kill (&one);
|
|
|
|
|
|
2000-03-26 14:47:33 +00:00
|
|
|
|
input_scrub_include_sb (&many, input_line_pointer, 1);
|
1999-05-03 07:29:11 +00:00
|
|
|
|
sb_kill (&many);
|
|
|
|
|
buffer_limit = input_scrub_next_buffer (&input_line_pointer);
|
|
|
|
|
}
|
|
|
|
|
|
2000-02-08 19:06:00 +00:00
|
|
|
|
/* Skip to end of current repeat loop; EXTRA indicates how many additional
|
|
|
|
|
input buffers to skip. Assumes that conditionals preceding the loop end
|
2000-07-20 17:12:25 +00:00
|
|
|
|
are properly nested.
|
2000-02-08 19:06:00 +00:00
|
|
|
|
|
|
|
|
|
This function makes it easier to implement a premature "break" out of the
|
|
|
|
|
loop. The EXTRA arg accounts for other buffers we might have inserted,
|
2000-07-20 17:12:25 +00:00
|
|
|
|
such as line substitutions. */
|
2000-02-08 19:06:00 +00:00
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
end_repeat (extra)
|
2000-07-20 17:12:25 +00:00
|
|
|
|
int extra;
|
2000-02-08 19:06:00 +00:00
|
|
|
|
{
|
|
|
|
|
cond_exit_macro (macro_nest);
|
|
|
|
|
while (extra-- >= 0)
|
|
|
|
|
buffer_limit = input_scrub_next_buffer (&input_line_pointer);
|
|
|
|
|
}
|
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
/* Handle the .equ, .equiv and .set directives. If EQUIV is 1, then
|
|
|
|
|
this is .equiv, and it is an error if the symbol is already
|
|
|
|
|
defined. */
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
void
|
1999-05-03 07:29:11 +00:00
|
|
|
|
s_set (equiv)
|
|
|
|
|
int equiv;
|
|
|
|
|
{
|
|
|
|
|
register char *name;
|
|
|
|
|
register char delim;
|
|
|
|
|
register char *end_name;
|
|
|
|
|
register symbolS *symbolP;
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* Especial apologies for the random logic:
|
|
|
|
|
this just grew, and could be parsed much more simply!
|
|
|
|
|
Dean in haste. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
name = input_line_pointer;
|
|
|
|
|
delim = get_symbol_end ();
|
|
|
|
|
end_name = input_line_pointer;
|
|
|
|
|
*end_name = delim;
|
|
|
|
|
SKIP_WHITESPACE ();
|
|
|
|
|
|
|
|
|
|
if (*input_line_pointer != ',')
|
|
|
|
|
{
|
|
|
|
|
*end_name = 0;
|
|
|
|
|
as_bad (_("Expected comma after name \"%s\""), name);
|
|
|
|
|
*end_name = delim;
|
|
|
|
|
ignore_rest_of_line ();
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
input_line_pointer++;
|
|
|
|
|
*end_name = 0;
|
|
|
|
|
|
|
|
|
|
if (name[0] == '.' && name[1] == '\0')
|
|
|
|
|
{
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* Turn '. = mumble' into a .org mumble. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
register segT segment;
|
|
|
|
|
expressionS exp;
|
|
|
|
|
|
|
|
|
|
segment = get_known_segmented_expression (&exp);
|
|
|
|
|
|
|
|
|
|
if (!need_pass_2)
|
|
|
|
|
do_org (segment, &exp, 0);
|
|
|
|
|
|
|
|
|
|
*end_name = delim;
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if ((symbolP = symbol_find (name)) == NULL
|
|
|
|
|
&& (symbolP = md_undefined_symbol (name)) == NULL)
|
|
|
|
|
{
|
|
|
|
|
#ifndef NO_LISTING
|
|
|
|
|
/* When doing symbol listings, play games with dummy fragments living
|
|
|
|
|
outside the normal fragment chain to record the file and line info
|
|
|
|
|
for this symbol. */
|
|
|
|
|
if (listing & LISTING_SYMBOLS)
|
|
|
|
|
{
|
|
|
|
|
extern struct list_info_struct *listing_tail;
|
2000-07-20 17:12:25 +00:00
|
|
|
|
fragS *dummy_frag = (fragS *) xmalloc (sizeof (fragS));
|
|
|
|
|
memset (dummy_frag, 0, sizeof (fragS));
|
1999-05-03 07:29:11 +00:00
|
|
|
|
dummy_frag->fr_type = rs_fill;
|
|
|
|
|
dummy_frag->line = listing_tail;
|
|
|
|
|
symbolP = symbol_new (name, undefined_section, 0, dummy_frag);
|
|
|
|
|
dummy_frag->fr_symbol = symbolP;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
#endif
|
2000-07-20 17:12:25 +00:00
|
|
|
|
symbolP = symbol_new (name, undefined_section, 0, &zero_address_frag);
|
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
#ifdef OBJ_COFF
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* "set" symbols are local unless otherwise specified. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
SF_SET_LOCAL (symbolP);
|
|
|
|
|
#endif /* OBJ_COFF */
|
2000-07-20 17:12:25 +00:00
|
|
|
|
}
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
symbol_table_insert (symbolP);
|
|
|
|
|
|
|
|
|
|
*end_name = delim;
|
|
|
|
|
|
|
|
|
|
if (equiv
|
|
|
|
|
&& S_IS_DEFINED (symbolP)
|
|
|
|
|
&& S_GET_SEGMENT (symbolP) != reg_section)
|
|
|
|
|
as_bad (_("symbol `%s' already defined"), S_GET_NAME (symbolP));
|
|
|
|
|
|
|
|
|
|
pseudo_set (symbolP);
|
|
|
|
|
demand_empty_rest_of_line ();
|
2000-07-20 17:12:25 +00:00
|
|
|
|
}
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
void
|
1999-05-03 07:29:11 +00:00
|
|
|
|
s_space (mult)
|
|
|
|
|
int mult;
|
|
|
|
|
{
|
|
|
|
|
expressionS exp;
|
|
|
|
|
expressionS val;
|
|
|
|
|
char *p = 0;
|
|
|
|
|
char *stop = NULL;
|
|
|
|
|
char stopc;
|
|
|
|
|
int bytes;
|
|
|
|
|
|
|
|
|
|
#ifdef md_flush_pending_output
|
|
|
|
|
md_flush_pending_output ();
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
if (flag_mri)
|
|
|
|
|
stop = mri_comment_field (&stopc);
|
|
|
|
|
|
|
|
|
|
/* In m68k MRI mode, we need to align to a word boundary, unless
|
|
|
|
|
this is ds.b. */
|
|
|
|
|
if (flag_m68k_mri && mult > 1)
|
|
|
|
|
{
|
|
|
|
|
if (now_seg == absolute_section)
|
|
|
|
|
{
|
|
|
|
|
abs_section_offset += abs_section_offset & 1;
|
|
|
|
|
if (line_label != NULL)
|
|
|
|
|
S_SET_VALUE (line_label, abs_section_offset);
|
|
|
|
|
}
|
|
|
|
|
else if (mri_common_symbol != NULL)
|
|
|
|
|
{
|
|
|
|
|
valueT val;
|
|
|
|
|
|
|
|
|
|
val = S_GET_VALUE (mri_common_symbol);
|
|
|
|
|
if ((val & 1) != 0)
|
|
|
|
|
{
|
|
|
|
|
S_SET_VALUE (mri_common_symbol, val + 1);
|
|
|
|
|
if (line_label != NULL)
|
|
|
|
|
{
|
1999-06-03 00:24:14 +00:00
|
|
|
|
expressionS *symexp;
|
|
|
|
|
|
|
|
|
|
symexp = symbol_get_value_expression (line_label);
|
|
|
|
|
know (symexp->X_op == O_symbol);
|
|
|
|
|
know (symexp->X_add_symbol == mri_common_symbol);
|
|
|
|
|
symexp->X_add_number += 1;
|
1999-05-03 07:29:11 +00:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
do_align (1, (char *) NULL, 0, 0);
|
|
|
|
|
if (line_label != NULL)
|
|
|
|
|
{
|
1999-06-03 00:24:14 +00:00
|
|
|
|
symbol_set_frag (line_label, frag_now);
|
1999-05-03 07:29:11 +00:00
|
|
|
|
S_SET_VALUE (line_label, frag_now_fix ());
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
bytes = mult;
|
|
|
|
|
|
|
|
|
|
expression (&exp);
|
|
|
|
|
|
|
|
|
|
SKIP_WHITESPACE ();
|
|
|
|
|
if (*input_line_pointer == ',')
|
|
|
|
|
{
|
|
|
|
|
++input_line_pointer;
|
|
|
|
|
expression (&val);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
val.X_op = O_constant;
|
|
|
|
|
val.X_add_number = 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (val.X_op != O_constant
|
|
|
|
|
|| val.X_add_number < - 0x80
|
|
|
|
|
|| val.X_add_number > 0xff
|
|
|
|
|
|| (mult != 0 && mult != 1 && val.X_add_number != 0))
|
|
|
|
|
{
|
|
|
|
|
if (exp.X_op != O_constant)
|
|
|
|
|
as_bad (_("Unsupported variable size or fill value"));
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
offsetT i;
|
|
|
|
|
|
|
|
|
|
if (mult == 0)
|
|
|
|
|
mult = 1;
|
|
|
|
|
bytes = mult * exp.X_add_number;
|
|
|
|
|
for (i = 0; i < exp.X_add_number; i++)
|
|
|
|
|
emit_expr (&val, mult);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
if (exp.X_op == O_constant)
|
|
|
|
|
{
|
|
|
|
|
long repeat;
|
|
|
|
|
|
|
|
|
|
repeat = exp.X_add_number;
|
|
|
|
|
if (mult)
|
|
|
|
|
repeat *= mult;
|
|
|
|
|
bytes = repeat;
|
|
|
|
|
if (repeat <= 0)
|
|
|
|
|
{
|
2000-07-20 17:12:25 +00:00
|
|
|
|
if (!flag_mri)
|
1999-05-03 07:29:11 +00:00
|
|
|
|
as_warn (_(".space repeat count is zero, ignored"));
|
|
|
|
|
else if (repeat < 0)
|
|
|
|
|
as_warn (_(".space repeat count is negative, ignored"));
|
|
|
|
|
goto getout;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* If we are in the absolute section, just bump the offset. */
|
|
|
|
|
if (now_seg == absolute_section)
|
|
|
|
|
{
|
|
|
|
|
abs_section_offset += repeat;
|
|
|
|
|
goto getout;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* If we are secretly in an MRI common section, then
|
|
|
|
|
creating space just increases the size of the common
|
|
|
|
|
symbol. */
|
|
|
|
|
if (mri_common_symbol != NULL)
|
|
|
|
|
{
|
|
|
|
|
S_SET_VALUE (mri_common_symbol,
|
|
|
|
|
S_GET_VALUE (mri_common_symbol) + repeat);
|
|
|
|
|
goto getout;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (!need_pass_2)
|
|
|
|
|
p = frag_var (rs_fill, 1, 1, (relax_substateT) 0, (symbolS *) 0,
|
|
|
|
|
(offsetT) repeat, (char *) 0);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
if (now_seg == absolute_section)
|
|
|
|
|
{
|
|
|
|
|
as_bad (_("space allocation too complex in absolute section"));
|
|
|
|
|
subseg_set (text_section, 0);
|
|
|
|
|
}
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
if (mri_common_symbol != NULL)
|
|
|
|
|
{
|
|
|
|
|
as_bad (_("space allocation too complex in common section"));
|
|
|
|
|
mri_common_symbol = NULL;
|
|
|
|
|
}
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
if (!need_pass_2)
|
|
|
|
|
p = frag_var (rs_space, 1, 1, (relax_substateT) 0,
|
|
|
|
|
make_expr_symbol (&exp), (offsetT) 0, (char *) 0);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (p)
|
|
|
|
|
*p = val.X_add_number;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
getout:
|
|
|
|
|
|
|
|
|
|
/* In MRI mode, after an odd number of bytes, we must align to an
|
|
|
|
|
even word boundary, unless the next instruction is a dc.b, ds.b
|
|
|
|
|
or dcb.b. */
|
|
|
|
|
if (flag_mri && (bytes & 1) != 0)
|
|
|
|
|
mri_pending_align = 1;
|
|
|
|
|
|
|
|
|
|
demand_empty_rest_of_line ();
|
|
|
|
|
|
|
|
|
|
if (flag_mri)
|
|
|
|
|
mri_comment_end (stop, stopc);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* This is like s_space, but the value is a floating point number with
|
|
|
|
|
the given precision. This is for the MRI dcb.s pseudo-op and
|
|
|
|
|
friends. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
s_float_space (float_type)
|
|
|
|
|
int float_type;
|
|
|
|
|
{
|
|
|
|
|
offsetT count;
|
|
|
|
|
int flen;
|
|
|
|
|
char temp[MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT];
|
|
|
|
|
char *stop = NULL;
|
|
|
|
|
char stopc;
|
|
|
|
|
|
|
|
|
|
if (flag_mri)
|
|
|
|
|
stop = mri_comment_field (&stopc);
|
|
|
|
|
|
|
|
|
|
count = get_absolute_expression ();
|
|
|
|
|
|
|
|
|
|
SKIP_WHITESPACE ();
|
|
|
|
|
if (*input_line_pointer != ',')
|
|
|
|
|
{
|
|
|
|
|
as_bad (_("missing value"));
|
|
|
|
|
ignore_rest_of_line ();
|
|
|
|
|
if (flag_mri)
|
|
|
|
|
mri_comment_end (stop, stopc);
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
++input_line_pointer;
|
|
|
|
|
|
|
|
|
|
SKIP_WHITESPACE ();
|
|
|
|
|
|
|
|
|
|
/* Skip any 0{letter} that may be present. Don't even check if the
|
|
|
|
|
* letter is legal. */
|
|
|
|
|
if (input_line_pointer[0] == '0'
|
|
|
|
|
&& isalpha ((unsigned char) input_line_pointer[1]))
|
|
|
|
|
input_line_pointer += 2;
|
|
|
|
|
|
|
|
|
|
/* Accept :xxxx, where the x's are hex digits, for a floating point
|
|
|
|
|
with the exact digits specified. */
|
|
|
|
|
if (input_line_pointer[0] == ':')
|
|
|
|
|
{
|
|
|
|
|
flen = hex_float (float_type, temp);
|
|
|
|
|
if (flen < 0)
|
|
|
|
|
{
|
|
|
|
|
ignore_rest_of_line ();
|
|
|
|
|
if (flag_mri)
|
|
|
|
|
mri_comment_end (stop, stopc);
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
char *err;
|
|
|
|
|
|
|
|
|
|
err = md_atof (float_type, temp, &flen);
|
|
|
|
|
know (flen <= MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT);
|
|
|
|
|
know (flen > 0);
|
|
|
|
|
if (err)
|
|
|
|
|
{
|
|
|
|
|
as_bad (_("Bad floating literal: %s"), err);
|
|
|
|
|
ignore_rest_of_line ();
|
|
|
|
|
if (flag_mri)
|
|
|
|
|
mri_comment_end (stop, stopc);
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
while (--count >= 0)
|
|
|
|
|
{
|
|
|
|
|
char *p;
|
|
|
|
|
|
|
|
|
|
p = frag_more (flen);
|
|
|
|
|
memcpy (p, temp, (unsigned int) flen);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
demand_empty_rest_of_line ();
|
|
|
|
|
|
|
|
|
|
if (flag_mri)
|
|
|
|
|
mri_comment_end (stop, stopc);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Handle the .struct pseudo-op, as found in MIPS assemblers. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
s_struct (ignore)
|
1999-07-11 20:20:04 +00:00
|
|
|
|
int ignore ATTRIBUTE_UNUSED;
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
char *stop = NULL;
|
|
|
|
|
char stopc;
|
|
|
|
|
|
|
|
|
|
if (flag_mri)
|
|
|
|
|
stop = mri_comment_field (&stopc);
|
|
|
|
|
abs_section_offset = get_absolute_expression ();
|
|
|
|
|
subseg_set (absolute_section, 0);
|
|
|
|
|
demand_empty_rest_of_line ();
|
|
|
|
|
if (flag_mri)
|
|
|
|
|
mri_comment_end (stop, stopc);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
s_text (ignore)
|
1999-07-11 20:20:04 +00:00
|
|
|
|
int ignore ATTRIBUTE_UNUSED;
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
register int temp;
|
|
|
|
|
|
|
|
|
|
temp = get_absolute_expression ();
|
|
|
|
|
subseg_set (text_section, (subsegT) temp);
|
|
|
|
|
demand_empty_rest_of_line ();
|
|
|
|
|
#ifdef OBJ_VMS
|
|
|
|
|
const_flag &= ~IN_DEFAULT_SECTION;
|
|
|
|
|
#endif
|
2000-07-20 17:12:25 +00:00
|
|
|
|
}
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
void
|
1999-05-03 07:29:11 +00:00
|
|
|
|
demand_empty_rest_of_line ()
|
|
|
|
|
{
|
|
|
|
|
SKIP_WHITESPACE ();
|
|
|
|
|
if (is_end_of_line[(unsigned char) *input_line_pointer])
|
2000-07-20 17:12:25 +00:00
|
|
|
|
input_line_pointer++;
|
1999-05-03 07:29:11 +00:00
|
|
|
|
else
|
2000-07-20 17:12:25 +00:00
|
|
|
|
ignore_rest_of_line ();
|
|
|
|
|
|
|
|
|
|
/* Return having already swallowed end-of-line. */
|
|
|
|
|
}
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
void
|
2000-07-20 17:12:25 +00:00
|
|
|
|
ignore_rest_of_line ()
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* For suspect lines: gives warning. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
if (!is_end_of_line[(unsigned char) *input_line_pointer])
|
|
|
|
|
{
|
|
|
|
|
if (isprint ((unsigned char) *input_line_pointer))
|
|
|
|
|
as_bad (_("Rest of line ignored. First ignored character is `%c'."),
|
|
|
|
|
*input_line_pointer);
|
|
|
|
|
else
|
|
|
|
|
as_bad (_("Rest of line ignored. First ignored character valued 0x%x."),
|
|
|
|
|
*input_line_pointer);
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
while (input_line_pointer < buffer_limit
|
|
|
|
|
&& !is_end_of_line[(unsigned char) *input_line_pointer])
|
2000-07-20 17:12:25 +00:00
|
|
|
|
input_line_pointer++;
|
1999-05-03 07:29:11 +00:00
|
|
|
|
}
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
input_line_pointer++;
|
|
|
|
|
|
|
|
|
|
/* Return pointing just after end-of-line. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
know (is_end_of_line[(unsigned char) input_line_pointer[-1]]);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
discard_rest_of_line ()
|
|
|
|
|
{
|
|
|
|
|
while (input_line_pointer < buffer_limit
|
2000-07-20 17:12:25 +00:00
|
|
|
|
&& !is_end_of_line[(unsigned char) *input_line_pointer])
|
|
|
|
|
input_line_pointer++;
|
|
|
|
|
|
|
|
|
|
input_line_pointer++;
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* Return pointing just after end-of-line. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
know (is_end_of_line[(unsigned char) input_line_pointer[-1]]);
|
|
|
|
|
}
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* In: Pointer to a symbol.
|
|
|
|
|
Input_line_pointer->expression.
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
Out: Input_line_pointer->just after any whitespace after expression.
|
|
|
|
|
Tried to set symbol to value of expression.
|
|
|
|
|
Will change symbols type, value, and frag; */
|
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
void
|
|
|
|
|
pseudo_set (symbolP)
|
|
|
|
|
symbolS *symbolP;
|
|
|
|
|
{
|
|
|
|
|
expressionS exp;
|
|
|
|
|
#if (defined (OBJ_AOUT) || defined (OBJ_BOUT)) && ! defined (BFD_ASSEMBLER)
|
|
|
|
|
int ext;
|
|
|
|
|
#endif /* OBJ_AOUT or OBJ_BOUT */
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
know (symbolP); /* NULL pointer is logic error. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
#if (defined (OBJ_AOUT) || defined (OBJ_BOUT)) && ! defined (BFD_ASSEMBLER)
|
|
|
|
|
ext = S_IS_EXTERNAL (symbolP);
|
|
|
|
|
#endif /* OBJ_AOUT or OBJ_BOUT */
|
|
|
|
|
|
2001-05-25 01:59:43 +00:00
|
|
|
|
(void) expression (&exp);
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
if (exp.X_op == O_illegal)
|
|
|
|
|
as_bad (_("illegal expression; zero assumed"));
|
|
|
|
|
else if (exp.X_op == O_absent)
|
|
|
|
|
as_bad (_("missing expression; zero assumed"));
|
|
|
|
|
else if (exp.X_op == O_big)
|
|
|
|
|
{
|
|
|
|
|
if (exp.X_add_number > 0)
|
|
|
|
|
as_bad (_("bignum invalid; zero assumed"));
|
|
|
|
|
else
|
|
|
|
|
as_bad (_("floating point number invalid; zero assumed"));
|
|
|
|
|
}
|
|
|
|
|
else if (exp.X_op == O_subtract
|
|
|
|
|
&& (S_GET_SEGMENT (exp.X_add_symbol)
|
|
|
|
|
== S_GET_SEGMENT (exp.X_op_symbol))
|
|
|
|
|
&& SEG_NORMAL (S_GET_SEGMENT (exp.X_add_symbol))
|
1999-06-03 00:24:14 +00:00
|
|
|
|
&& (symbol_get_frag (exp.X_add_symbol)
|
|
|
|
|
== symbol_get_frag (exp.X_op_symbol)))
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
exp.X_op = O_constant;
|
|
|
|
|
exp.X_add_number = (S_GET_VALUE (exp.X_add_symbol)
|
|
|
|
|
- S_GET_VALUE (exp.X_op_symbol));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
switch (exp.X_op)
|
|
|
|
|
{
|
|
|
|
|
case O_illegal:
|
|
|
|
|
case O_absent:
|
|
|
|
|
case O_big:
|
|
|
|
|
exp.X_add_number = 0;
|
|
|
|
|
/* Fall through. */
|
|
|
|
|
case O_constant:
|
|
|
|
|
S_SET_SEGMENT (symbolP, absolute_section);
|
|
|
|
|
#if (defined (OBJ_AOUT) || defined (OBJ_BOUT)) && ! defined (BFD_ASSEMBLER)
|
|
|
|
|
if (ext)
|
|
|
|
|
S_SET_EXTERNAL (symbolP);
|
|
|
|
|
else
|
|
|
|
|
S_CLEAR_EXTERNAL (symbolP);
|
|
|
|
|
#endif /* OBJ_AOUT or OBJ_BOUT */
|
|
|
|
|
S_SET_VALUE (symbolP, (valueT) exp.X_add_number);
|
|
|
|
|
if (exp.X_op != O_constant)
|
2000-07-20 17:12:25 +00:00
|
|
|
|
symbol_set_frag (symbolP, &zero_address_frag);
|
1999-05-03 07:29:11 +00:00
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case O_register:
|
|
|
|
|
S_SET_SEGMENT (symbolP, reg_section);
|
|
|
|
|
S_SET_VALUE (symbolP, (valueT) exp.X_add_number);
|
1999-06-03 00:24:14 +00:00
|
|
|
|
symbol_set_frag (symbolP, &zero_address_frag);
|
1999-05-03 07:29:11 +00:00
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case O_symbol:
|
|
|
|
|
if (S_GET_SEGMENT (exp.X_add_symbol) == undefined_section
|
|
|
|
|
|| exp.X_add_number != 0)
|
1999-06-03 00:24:14 +00:00
|
|
|
|
symbol_set_value_expression (symbolP, &exp);
|
1999-11-03 22:14:47 +00:00
|
|
|
|
else if (symbol_section_p (symbolP))
|
|
|
|
|
as_bad ("invalid attempt to set value of section symbol");
|
1999-05-03 07:29:11 +00:00
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
symbolS *s = exp.X_add_symbol;
|
|
|
|
|
|
|
|
|
|
S_SET_SEGMENT (symbolP, S_GET_SEGMENT (s));
|
|
|
|
|
#if (defined (OBJ_AOUT) || defined (OBJ_BOUT)) && ! defined (BFD_ASSEMBLER)
|
|
|
|
|
if (ext)
|
|
|
|
|
S_SET_EXTERNAL (symbolP);
|
|
|
|
|
else
|
|
|
|
|
S_CLEAR_EXTERNAL (symbolP);
|
|
|
|
|
#endif /* OBJ_AOUT or OBJ_BOUT */
|
|
|
|
|
S_SET_VALUE (symbolP,
|
|
|
|
|
exp.X_add_number + S_GET_VALUE (s));
|
1999-06-03 00:24:14 +00:00
|
|
|
|
symbol_set_frag (symbolP, symbol_get_frag (s));
|
1999-05-03 07:29:11 +00:00
|
|
|
|
copy_symbol_attributes (symbolP, s);
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
default:
|
2001-05-25 01:59:43 +00:00
|
|
|
|
/* The value is some complex expression.
|
|
|
|
|
FIXME: Should we set the segment to anything? */
|
1999-06-03 00:24:14 +00:00
|
|
|
|
symbol_set_value_expression (symbolP, &exp);
|
1999-05-03 07:29:11 +00:00
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* cons()
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
CONStruct more frag of .bytes, or .words etc.
|
|
|
|
|
Should need_pass_2 be 1 then emit no frag(s).
|
|
|
|
|
This understands EXPRESSIONS.
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
Bug (?)
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
This has a split personality. We use expression() to read the
|
|
|
|
|
value. We can detect if the value won't fit in a byte or word.
|
|
|
|
|
But we can't detect if expression() discarded significant digits
|
|
|
|
|
in the case of a long. Not worth the crocks required to fix it. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
/* Select a parser for cons expressions. */
|
|
|
|
|
|
|
|
|
|
/* Some targets need to parse the expression in various fancy ways.
|
|
|
|
|
You can define TC_PARSE_CONS_EXPRESSION to do whatever you like
|
|
|
|
|
(for example, the HPPA does this). Otherwise, you can define
|
|
|
|
|
BITFIELD_CONS_EXPRESSIONS to permit bitfields to be specified, or
|
|
|
|
|
REPEAT_CONS_EXPRESSIONS to permit repeat counts. If none of these
|
|
|
|
|
are defined, which is the normal case, then only simple expressions
|
|
|
|
|
are permitted. */
|
|
|
|
|
|
2000-02-24 01:56:31 +00:00
|
|
|
|
#ifdef TC_M68K
|
1999-05-03 07:29:11 +00:00
|
|
|
|
static void
|
|
|
|
|
parse_mri_cons PARAMS ((expressionS *exp, unsigned int nbytes));
|
2000-02-24 01:56:31 +00:00
|
|
|
|
#endif
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
#ifndef TC_PARSE_CONS_EXPRESSION
|
|
|
|
|
#ifdef BITFIELD_CONS_EXPRESSIONS
|
|
|
|
|
#define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) parse_bitfield_cons (EXP, NBYTES)
|
2000-07-20 17:12:25 +00:00
|
|
|
|
static void
|
1999-05-03 07:29:11 +00:00
|
|
|
|
parse_bitfield_cons PARAMS ((expressionS *exp, unsigned int nbytes));
|
|
|
|
|
#endif
|
|
|
|
|
#ifdef REPEAT_CONS_EXPRESSIONS
|
|
|
|
|
#define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) parse_repeat_cons (EXP, NBYTES)
|
|
|
|
|
static void
|
|
|
|
|
parse_repeat_cons PARAMS ((expressionS *exp, unsigned int nbytes));
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/* If we haven't gotten one yet, just call expression. */
|
|
|
|
|
#ifndef TC_PARSE_CONS_EXPRESSION
|
|
|
|
|
#define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) expression (EXP)
|
|
|
|
|
#endif
|
|
|
|
|
#endif
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* Worker to do .byte etc statements.
|
|
|
|
|
Clobbers input_line_pointer and checks end-of-line. */
|
|
|
|
|
|
|
|
|
|
static void
|
1999-05-03 07:29:11 +00:00
|
|
|
|
cons_worker (nbytes, rva)
|
2000-07-20 17:12:25 +00:00
|
|
|
|
register int nbytes; /* 1=.byte, 2=.word, 4=.long. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
int rva;
|
|
|
|
|
{
|
|
|
|
|
int c;
|
|
|
|
|
expressionS exp;
|
|
|
|
|
char *stop = NULL;
|
|
|
|
|
char stopc;
|
|
|
|
|
|
|
|
|
|
#ifdef md_flush_pending_output
|
|
|
|
|
md_flush_pending_output ();
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
if (flag_mri)
|
|
|
|
|
stop = mri_comment_field (&stopc);
|
|
|
|
|
|
|
|
|
|
if (is_it_end_of_statement ())
|
|
|
|
|
{
|
|
|
|
|
demand_empty_rest_of_line ();
|
|
|
|
|
if (flag_mri)
|
|
|
|
|
mri_comment_end (stop, stopc);
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#ifdef md_cons_align
|
|
|
|
|
md_cons_align (nbytes);
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
c = 0;
|
|
|
|
|
do
|
|
|
|
|
{
|
2000-02-24 01:56:31 +00:00
|
|
|
|
#ifdef TC_M68K
|
1999-05-03 07:29:11 +00:00
|
|
|
|
if (flag_m68k_mri)
|
|
|
|
|
parse_mri_cons (&exp, (unsigned int) nbytes);
|
|
|
|
|
else
|
2000-02-24 01:56:31 +00:00
|
|
|
|
#endif
|
1999-05-03 07:29:11 +00:00
|
|
|
|
TC_PARSE_CONS_EXPRESSION (&exp, (unsigned int) nbytes);
|
|
|
|
|
|
|
|
|
|
if (rva)
|
|
|
|
|
{
|
|
|
|
|
if (exp.X_op == O_symbol)
|
|
|
|
|
exp.X_op = O_symbol_rva;
|
|
|
|
|
else
|
|
|
|
|
as_fatal (_("rva without symbol"));
|
|
|
|
|
}
|
|
|
|
|
emit_expr (&exp, (unsigned int) nbytes);
|
|
|
|
|
++c;
|
|
|
|
|
}
|
|
|
|
|
while (*input_line_pointer++ == ',');
|
|
|
|
|
|
|
|
|
|
/* In MRI mode, after an odd number of bytes, we must align to an
|
|
|
|
|
even word boundary, unless the next instruction is a dc.b, ds.b
|
|
|
|
|
or dcb.b. */
|
|
|
|
|
if (flag_mri && nbytes == 1 && (c & 1) != 0)
|
|
|
|
|
mri_pending_align = 1;
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
input_line_pointer--; /* Put terminator back into stream. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
demand_empty_rest_of_line ();
|
|
|
|
|
|
|
|
|
|
if (flag_mri)
|
|
|
|
|
mri_comment_end (stop, stopc);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
cons (size)
|
|
|
|
|
int size;
|
|
|
|
|
{
|
|
|
|
|
cons_worker (size, 0);
|
|
|
|
|
}
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
void
|
1999-05-03 07:29:11 +00:00
|
|
|
|
s_rva (size)
|
|
|
|
|
int size;
|
|
|
|
|
{
|
|
|
|
|
cons_worker (size, 1);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Put the contents of expression EXP into the object file using
|
|
|
|
|
NBYTES bytes. If need_pass_2 is 1, this does nothing. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
emit_expr (exp, nbytes)
|
|
|
|
|
expressionS *exp;
|
|
|
|
|
unsigned int nbytes;
|
|
|
|
|
{
|
|
|
|
|
operatorT op;
|
|
|
|
|
register char *p;
|
|
|
|
|
valueT extra_digit = 0;
|
|
|
|
|
|
|
|
|
|
/* Don't do anything if we are going to make another pass. */
|
|
|
|
|
if (need_pass_2)
|
|
|
|
|
return;
|
|
|
|
|
|
|
|
|
|
#ifndef NO_LISTING
|
|
|
|
|
#ifdef OBJ_ELF
|
|
|
|
|
/* When gcc emits DWARF 1 debugging pseudo-ops, a line number will
|
|
|
|
|
appear as a four byte positive constant in the .line section,
|
|
|
|
|
followed by a 2 byte 0xffff. Look for that case here. */
|
|
|
|
|
{
|
|
|
|
|
static int dwarf_line = -1;
|
|
|
|
|
|
|
|
|
|
if (strcmp (segment_name (now_seg), ".line") != 0)
|
|
|
|
|
dwarf_line = -1;
|
|
|
|
|
else if (dwarf_line >= 0
|
|
|
|
|
&& nbytes == 2
|
|
|
|
|
&& exp->X_op == O_constant
|
|
|
|
|
&& (exp->X_add_number == -1 || exp->X_add_number == 0xffff))
|
|
|
|
|
listing_source_line ((unsigned int) dwarf_line);
|
|
|
|
|
else if (nbytes == 4
|
|
|
|
|
&& exp->X_op == O_constant
|
|
|
|
|
&& exp->X_add_number >= 0)
|
|
|
|
|
dwarf_line = exp->X_add_number;
|
|
|
|
|
else
|
|
|
|
|
dwarf_line = -1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* When gcc emits DWARF 1 debugging pseudo-ops, a file name will
|
|
|
|
|
appear as a 2 byte TAG_compile_unit (0x11) followed by a 2 byte
|
|
|
|
|
AT_sibling (0x12) followed by a four byte address of the sibling
|
|
|
|
|
followed by a 2 byte AT_name (0x38) followed by the name of the
|
|
|
|
|
file. We look for that case here. */
|
|
|
|
|
{
|
|
|
|
|
static int dwarf_file = 0;
|
|
|
|
|
|
|
|
|
|
if (strcmp (segment_name (now_seg), ".debug") != 0)
|
|
|
|
|
dwarf_file = 0;
|
|
|
|
|
else if (dwarf_file == 0
|
|
|
|
|
&& nbytes == 2
|
|
|
|
|
&& exp->X_op == O_constant
|
|
|
|
|
&& exp->X_add_number == 0x11)
|
|
|
|
|
dwarf_file = 1;
|
|
|
|
|
else if (dwarf_file == 1
|
|
|
|
|
&& nbytes == 2
|
|
|
|
|
&& exp->X_op == O_constant
|
|
|
|
|
&& exp->X_add_number == 0x12)
|
|
|
|
|
dwarf_file = 2;
|
|
|
|
|
else if (dwarf_file == 2
|
|
|
|
|
&& nbytes == 4)
|
|
|
|
|
dwarf_file = 3;
|
|
|
|
|
else if (dwarf_file == 3
|
|
|
|
|
&& nbytes == 2
|
|
|
|
|
&& exp->X_op == O_constant
|
|
|
|
|
&& exp->X_add_number == 0x38)
|
|
|
|
|
dwarf_file = 4;
|
|
|
|
|
else
|
|
|
|
|
dwarf_file = 0;
|
|
|
|
|
|
|
|
|
|
/* The variable dwarf_file_string tells stringer that the string
|
|
|
|
|
may be the name of the source file. */
|
|
|
|
|
if (dwarf_file == 4)
|
|
|
|
|
dwarf_file_string = 1;
|
|
|
|
|
else
|
|
|
|
|
dwarf_file_string = 0;
|
|
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
if (check_eh_frame (exp, &nbytes))
|
|
|
|
|
return;
|
|
|
|
|
|
|
|
|
|
op = exp->X_op;
|
|
|
|
|
|
|
|
|
|
/* Allow `.word 0' in the absolute section. */
|
|
|
|
|
if (now_seg == absolute_section)
|
|
|
|
|
{
|
|
|
|
|
if (op != O_constant || exp->X_add_number != 0)
|
|
|
|
|
as_bad (_("attempt to store value in absolute section"));
|
|
|
|
|
abs_section_offset += nbytes;
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Handle a negative bignum. */
|
|
|
|
|
if (op == O_uminus
|
|
|
|
|
&& exp->X_add_number == 0
|
1999-06-03 00:24:14 +00:00
|
|
|
|
&& symbol_get_value_expression (exp->X_add_symbol)->X_op == O_big
|
|
|
|
|
&& symbol_get_value_expression (exp->X_add_symbol)->X_add_number > 0)
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
int i;
|
|
|
|
|
unsigned long carry;
|
|
|
|
|
|
1999-06-03 00:24:14 +00:00
|
|
|
|
exp = symbol_get_value_expression (exp->X_add_symbol);
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
/* Negate the bignum: one's complement each digit and add 1. */
|
|
|
|
|
carry = 1;
|
|
|
|
|
for (i = 0; i < exp->X_add_number; i++)
|
|
|
|
|
{
|
|
|
|
|
unsigned long next;
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
next = (((~(generic_bignum[i] & LITTLENUM_MASK))
|
1999-05-03 07:29:11 +00:00
|
|
|
|
& LITTLENUM_MASK)
|
|
|
|
|
+ carry);
|
|
|
|
|
generic_bignum[i] = next & LITTLENUM_MASK;
|
|
|
|
|
carry = next >> LITTLENUM_NUMBER_OF_BITS;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* We can ignore any carry out, because it will be handled by
|
|
|
|
|
extra_digit if it is needed. */
|
|
|
|
|
|
|
|
|
|
extra_digit = (valueT) -1;
|
|
|
|
|
op = O_big;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (op == O_absent || op == O_illegal)
|
|
|
|
|
{
|
|
|
|
|
as_warn (_("zero assumed for missing expression"));
|
|
|
|
|
exp->X_add_number = 0;
|
|
|
|
|
op = O_constant;
|
|
|
|
|
}
|
|
|
|
|
else if (op == O_big && exp->X_add_number <= 0)
|
|
|
|
|
{
|
|
|
|
|
as_bad (_("floating point number invalid; zero assumed"));
|
|
|
|
|
exp->X_add_number = 0;
|
|
|
|
|
op = O_constant;
|
|
|
|
|
}
|
|
|
|
|
else if (op == O_register)
|
|
|
|
|
{
|
|
|
|
|
as_warn (_("register value used as expression"));
|
|
|
|
|
op = O_constant;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
p = frag_more ((int) nbytes);
|
|
|
|
|
|
|
|
|
|
#ifndef WORKING_DOT_WORD
|
|
|
|
|
/* If we have the difference of two symbols in a word, save it on
|
|
|
|
|
the broken_words list. See the code in write.c. */
|
|
|
|
|
if (op == O_subtract && nbytes == 2)
|
|
|
|
|
{
|
|
|
|
|
struct broken_word *x;
|
|
|
|
|
|
|
|
|
|
x = (struct broken_word *) xmalloc (sizeof (struct broken_word));
|
|
|
|
|
x->next_broken_word = broken_words;
|
|
|
|
|
broken_words = x;
|
|
|
|
|
x->seg = now_seg;
|
|
|
|
|
x->subseg = now_subseg;
|
|
|
|
|
x->frag = frag_now;
|
|
|
|
|
x->word_goes_here = p;
|
|
|
|
|
x->dispfrag = 0;
|
|
|
|
|
x->add = exp->X_add_symbol;
|
|
|
|
|
x->sub = exp->X_op_symbol;
|
|
|
|
|
x->addnum = exp->X_add_number;
|
|
|
|
|
x->added = 0;
|
|
|
|
|
new_broken_words++;
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/* If we have an integer, but the number of bytes is too large to
|
|
|
|
|
pass to md_number_to_chars, handle it as a bignum. */
|
|
|
|
|
if (op == O_constant && nbytes > sizeof (valueT))
|
|
|
|
|
{
|
|
|
|
|
valueT val;
|
|
|
|
|
int gencnt;
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
if (!exp->X_unsigned && exp->X_add_number < 0)
|
1999-05-03 07:29:11 +00:00
|
|
|
|
extra_digit = (valueT) -1;
|
|
|
|
|
val = (valueT) exp->X_add_number;
|
|
|
|
|
gencnt = 0;
|
|
|
|
|
do
|
|
|
|
|
{
|
|
|
|
|
generic_bignum[gencnt] = val & LITTLENUM_MASK;
|
|
|
|
|
val >>= LITTLENUM_NUMBER_OF_BITS;
|
|
|
|
|
++gencnt;
|
|
|
|
|
}
|
|
|
|
|
while (val != 0);
|
|
|
|
|
op = exp->X_op = O_big;
|
|
|
|
|
exp->X_add_number = gencnt;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (op == O_constant)
|
|
|
|
|
{
|
|
|
|
|
register valueT get;
|
|
|
|
|
register valueT use;
|
|
|
|
|
register valueT mask;
|
|
|
|
|
valueT hibit;
|
|
|
|
|
register valueT unmask;
|
|
|
|
|
|
|
|
|
|
/* JF << of >= number of bits in the object is undefined. In
|
2000-07-20 17:12:25 +00:00
|
|
|
|
particular SPARC (Sun 4) has problems. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
if (nbytes >= sizeof (valueT))
|
|
|
|
|
{
|
|
|
|
|
mask = 0;
|
|
|
|
|
if (nbytes > sizeof (valueT))
|
|
|
|
|
hibit = 0;
|
|
|
|
|
else
|
|
|
|
|
hibit = (valueT) 1 << (nbytes * BITS_PER_CHAR - 1);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* Don't store these bits. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
mask = ~(valueT) 0 << (BITS_PER_CHAR * nbytes);
|
|
|
|
|
hibit = (valueT) 1 << (nbytes * BITS_PER_CHAR - 1);
|
|
|
|
|
}
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
unmask = ~mask; /* Do store these bits. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
#ifdef NEVER
|
|
|
|
|
"Do this mod if you want every overflow check to assume SIGNED 2's complement data.";
|
2000-07-20 17:12:25 +00:00
|
|
|
|
mask = ~(unmask >> 1); /* Includes sign bit now. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
get = exp->X_add_number;
|
|
|
|
|
use = get & unmask;
|
|
|
|
|
if ((get & mask) != 0
|
|
|
|
|
&& ((get & mask) != mask
|
|
|
|
|
|| (get & hibit) == 0))
|
2000-07-20 17:12:25 +00:00
|
|
|
|
{ /* Leading bits contain both 0s & 1s. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
as_warn (_("Value 0x%lx truncated to 0x%lx."),
|
|
|
|
|
(unsigned long) get, (unsigned long) use);
|
|
|
|
|
}
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* Put bytes in right order. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
md_number_to_chars (p, use, (int) nbytes);
|
|
|
|
|
}
|
|
|
|
|
else if (op == O_big)
|
|
|
|
|
{
|
|
|
|
|
unsigned int size;
|
|
|
|
|
LITTLENUM_TYPE *nums;
|
|
|
|
|
|
|
|
|
|
know (nbytes % CHARS_PER_LITTLENUM == 0);
|
|
|
|
|
|
|
|
|
|
size = exp->X_add_number * CHARS_PER_LITTLENUM;
|
|
|
|
|
if (nbytes < size)
|
|
|
|
|
{
|
|
|
|
|
as_warn (_("Bignum truncated to %d bytes"), nbytes);
|
|
|
|
|
size = nbytes;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (target_big_endian)
|
|
|
|
|
{
|
|
|
|
|
while (nbytes > size)
|
|
|
|
|
{
|
|
|
|
|
md_number_to_chars (p, extra_digit, CHARS_PER_LITTLENUM);
|
|
|
|
|
nbytes -= CHARS_PER_LITTLENUM;
|
|
|
|
|
p += CHARS_PER_LITTLENUM;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
nums = generic_bignum + size / CHARS_PER_LITTLENUM;
|
|
|
|
|
while (size > 0)
|
|
|
|
|
{
|
|
|
|
|
--nums;
|
|
|
|
|
md_number_to_chars (p, (valueT) *nums, CHARS_PER_LITTLENUM);
|
|
|
|
|
size -= CHARS_PER_LITTLENUM;
|
|
|
|
|
p += CHARS_PER_LITTLENUM;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
nums = generic_bignum;
|
|
|
|
|
while (size > 0)
|
|
|
|
|
{
|
|
|
|
|
md_number_to_chars (p, (valueT) *nums, CHARS_PER_LITTLENUM);
|
|
|
|
|
++nums;
|
|
|
|
|
size -= CHARS_PER_LITTLENUM;
|
|
|
|
|
p += CHARS_PER_LITTLENUM;
|
|
|
|
|
nbytes -= CHARS_PER_LITTLENUM;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
while (nbytes > 0)
|
|
|
|
|
{
|
|
|
|
|
md_number_to_chars (p, extra_digit, CHARS_PER_LITTLENUM);
|
|
|
|
|
nbytes -= CHARS_PER_LITTLENUM;
|
|
|
|
|
p += CHARS_PER_LITTLENUM;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
memset (p, 0, nbytes);
|
|
|
|
|
|
|
|
|
|
/* Now we need to generate a fixS to record the symbol value.
|
|
|
|
|
This is easy for BFD. For other targets it can be more
|
|
|
|
|
complex. For very complex cases (currently, the HPPA and
|
|
|
|
|
NS32K), you can define TC_CONS_FIX_NEW to do whatever you
|
|
|
|
|
want. For simpler cases, you can define TC_CONS_RELOC to be
|
|
|
|
|
the name of the reloc code that should be stored in the fixS.
|
|
|
|
|
If neither is defined, the code uses NO_RELOC if it is
|
|
|
|
|
defined, and otherwise uses 0. */
|
|
|
|
|
|
|
|
|
|
#ifdef BFD_ASSEMBLER
|
|
|
|
|
#ifdef TC_CONS_FIX_NEW
|
|
|
|
|
TC_CONS_FIX_NEW (frag_now, p - frag_now->fr_literal, nbytes, exp);
|
|
|
|
|
#else
|
|
|
|
|
{
|
|
|
|
|
bfd_reloc_code_real_type r;
|
|
|
|
|
|
|
|
|
|
switch (nbytes)
|
|
|
|
|
{
|
|
|
|
|
case 1:
|
|
|
|
|
r = BFD_RELOC_8;
|
|
|
|
|
break;
|
|
|
|
|
case 2:
|
|
|
|
|
r = BFD_RELOC_16;
|
|
|
|
|
break;
|
|
|
|
|
case 4:
|
|
|
|
|
r = BFD_RELOC_32;
|
|
|
|
|
break;
|
|
|
|
|
case 8:
|
|
|
|
|
r = BFD_RELOC_64;
|
|
|
|
|
break;
|
|
|
|
|
default:
|
|
|
|
|
as_bad (_("unsupported BFD relocation size %u"), nbytes);
|
|
|
|
|
r = BFD_RELOC_32;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
fix_new_exp (frag_now, p - frag_now->fr_literal, (int) nbytes, exp,
|
|
|
|
|
0, r);
|
|
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
#else
|
|
|
|
|
#ifdef TC_CONS_FIX_NEW
|
|
|
|
|
TC_CONS_FIX_NEW (frag_now, p - frag_now->fr_literal, nbytes, exp);
|
|
|
|
|
#else
|
|
|
|
|
/* Figure out which reloc number to use. Use TC_CONS_RELOC if
|
|
|
|
|
it is defined, otherwise use NO_RELOC if it is defined,
|
|
|
|
|
otherwise use 0. */
|
|
|
|
|
#ifndef TC_CONS_RELOC
|
|
|
|
|
#ifdef NO_RELOC
|
|
|
|
|
#define TC_CONS_RELOC NO_RELOC
|
|
|
|
|
#else
|
|
|
|
|
#define TC_CONS_RELOC 0
|
|
|
|
|
#endif
|
|
|
|
|
#endif
|
|
|
|
|
fix_new_exp (frag_now, p - frag_now->fr_literal, (int) nbytes, exp, 0,
|
|
|
|
|
TC_CONS_RELOC);
|
|
|
|
|
#endif /* TC_CONS_FIX_NEW */
|
|
|
|
|
#endif /* BFD_ASSEMBLER */
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#ifdef BITFIELD_CONS_EXPRESSIONS
|
|
|
|
|
|
|
|
|
|
/* i960 assemblers, (eg, asm960), allow bitfields after ".byte" as
|
|
|
|
|
w:x,y:z, where w and y are bitwidths and x and y are values. They
|
|
|
|
|
then pack them all together. We do a little better in that we allow
|
|
|
|
|
them in words, longs, etc. and we'll pack them in target byte order
|
|
|
|
|
for you.
|
|
|
|
|
|
|
|
|
|
The rules are: pack least significat bit first, if a field doesn't
|
|
|
|
|
entirely fit, put it in the next unit. Overflowing the bitfield is
|
|
|
|
|
explicitly *not* even a warning. The bitwidth should be considered
|
|
|
|
|
a "mask".
|
|
|
|
|
|
|
|
|
|
To use this function the tc-XXX.h file should define
|
|
|
|
|
BITFIELD_CONS_EXPRESSIONS. */
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
static void
|
1999-05-03 07:29:11 +00:00
|
|
|
|
parse_bitfield_cons (exp, nbytes)
|
|
|
|
|
expressionS *exp;
|
|
|
|
|
unsigned int nbytes;
|
|
|
|
|
{
|
|
|
|
|
unsigned int bits_available = BITS_PER_CHAR * nbytes;
|
|
|
|
|
char *hold = input_line_pointer;
|
|
|
|
|
|
|
|
|
|
(void) expression (exp);
|
|
|
|
|
|
|
|
|
|
if (*input_line_pointer == ':')
|
2000-07-20 17:12:25 +00:00
|
|
|
|
{
|
|
|
|
|
/* Bitfields. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
long value = 0;
|
|
|
|
|
|
|
|
|
|
for (;;)
|
|
|
|
|
{
|
|
|
|
|
unsigned long width;
|
|
|
|
|
|
|
|
|
|
if (*input_line_pointer != ':')
|
|
|
|
|
{
|
|
|
|
|
input_line_pointer = hold;
|
|
|
|
|
break;
|
2000-07-20 17:12:25 +00:00
|
|
|
|
} /* Next piece is not a bitfield. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
/* In the general case, we can't allow
|
|
|
|
|
full expressions with symbol
|
|
|
|
|
differences and such. The relocation
|
|
|
|
|
entries for symbols not defined in this
|
|
|
|
|
assembly would require arbitrary field
|
|
|
|
|
widths, positions, and masks which most
|
|
|
|
|
of our current object formats don't
|
|
|
|
|
support.
|
|
|
|
|
|
|
|
|
|
In the specific case where a symbol
|
|
|
|
|
*is* defined in this assembly, we
|
|
|
|
|
*could* build fixups and track it, but
|
|
|
|
|
this could lead to confusion for the
|
|
|
|
|
backends. I'm lazy. I'll take any
|
|
|
|
|
SEG_ABSOLUTE. I think that means that
|
|
|
|
|
you can use a previous .set or
|
2000-07-20 17:12:25 +00:00
|
|
|
|
.equ type symbol. xoxorich. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
if (exp->X_op == O_absent)
|
|
|
|
|
{
|
|
|
|
|
as_warn (_("using a bit field width of zero"));
|
|
|
|
|
exp->X_add_number = 0;
|
|
|
|
|
exp->X_op = O_constant;
|
2000-07-20 17:12:25 +00:00
|
|
|
|
} /* Implied zero width bitfield. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
if (exp->X_op != O_constant)
|
|
|
|
|
{
|
|
|
|
|
*input_line_pointer = '\0';
|
|
|
|
|
as_bad (_("field width \"%s\" too complex for a bitfield"), hold);
|
|
|
|
|
*input_line_pointer = ':';
|
|
|
|
|
demand_empty_rest_of_line ();
|
|
|
|
|
return;
|
2000-07-20 17:12:25 +00:00
|
|
|
|
} /* Too complex. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
if ((width = exp->X_add_number) > (BITS_PER_CHAR * nbytes))
|
|
|
|
|
{
|
|
|
|
|
as_warn (_("field width %lu too big to fit in %d bytes: truncated to %d bits"),
|
|
|
|
|
width, nbytes, (BITS_PER_CHAR * nbytes));
|
|
|
|
|
width = BITS_PER_CHAR * nbytes;
|
2000-07-20 17:12:25 +00:00
|
|
|
|
} /* Too big. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
if (width > bits_available)
|
|
|
|
|
{
|
|
|
|
|
/* FIXME-SOMEDAY: backing up and reparsing is wasteful. */
|
|
|
|
|
input_line_pointer = hold;
|
|
|
|
|
exp->X_add_number = value;
|
|
|
|
|
break;
|
2000-07-20 17:12:25 +00:00
|
|
|
|
} /* Won't fit. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
2000-11-07 01:18:45 +00:00
|
|
|
|
/* Skip ':'. */
|
|
|
|
|
hold = ++input_line_pointer;
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
(void) expression (exp);
|
|
|
|
|
if (exp->X_op != O_constant)
|
|
|
|
|
{
|
|
|
|
|
char cache = *input_line_pointer;
|
|
|
|
|
|
|
|
|
|
*input_line_pointer = '\0';
|
|
|
|
|
as_bad (_("field value \"%s\" too complex for a bitfield"), hold);
|
|
|
|
|
*input_line_pointer = cache;
|
|
|
|
|
demand_empty_rest_of_line ();
|
|
|
|
|
return;
|
2000-07-20 17:12:25 +00:00
|
|
|
|
} /* Too complex. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
value |= ((~(-1 << width) & exp->X_add_number)
|
|
|
|
|
<< ((BITS_PER_CHAR * nbytes) - bits_available));
|
|
|
|
|
|
|
|
|
|
if ((bits_available -= width) == 0
|
|
|
|
|
|| is_it_end_of_statement ()
|
|
|
|
|
|| *input_line_pointer != ',')
|
|
|
|
|
{
|
|
|
|
|
break;
|
2000-07-20 17:12:25 +00:00
|
|
|
|
} /* All the bitfields we're gonna get. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
hold = ++input_line_pointer;
|
|
|
|
|
(void) expression (exp);
|
2000-07-20 17:12:25 +00:00
|
|
|
|
}
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
exp->X_add_number = value;
|
|
|
|
|
exp->X_op = O_constant;
|
|
|
|
|
exp->X_unsigned = 1;
|
2000-07-20 17:12:25 +00:00
|
|
|
|
}
|
|
|
|
|
}
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
#endif /* BITFIELD_CONS_EXPRESSIONS */
|
|
|
|
|
|
|
|
|
|
/* Handle an MRI style string expression. */
|
|
|
|
|
|
2000-02-24 01:56:31 +00:00
|
|
|
|
#ifdef TC_M68K
|
1999-05-03 07:29:11 +00:00
|
|
|
|
static void
|
|
|
|
|
parse_mri_cons (exp, nbytes)
|
|
|
|
|
expressionS *exp;
|
|
|
|
|
unsigned int nbytes;
|
|
|
|
|
{
|
|
|
|
|
if (*input_line_pointer != '\''
|
|
|
|
|
&& (input_line_pointer[1] != '\''
|
|
|
|
|
|| (*input_line_pointer != 'A'
|
|
|
|
|
&& *input_line_pointer != 'E')))
|
|
|
|
|
TC_PARSE_CONS_EXPRESSION (exp, nbytes);
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
unsigned int scan;
|
|
|
|
|
unsigned int result = 0;
|
|
|
|
|
|
|
|
|
|
/* An MRI style string. Cut into as many bytes as will fit into
|
|
|
|
|
a nbyte chunk, left justify if necessary, and separate with
|
|
|
|
|
commas so we can try again later. */
|
|
|
|
|
if (*input_line_pointer == 'A')
|
|
|
|
|
++input_line_pointer;
|
|
|
|
|
else if (*input_line_pointer == 'E')
|
|
|
|
|
{
|
|
|
|
|
as_bad (_("EBCDIC constants are not supported"));
|
|
|
|
|
++input_line_pointer;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
input_line_pointer++;
|
|
|
|
|
for (scan = 0; scan < nbytes; scan++)
|
|
|
|
|
{
|
|
|
|
|
if (*input_line_pointer == '\'')
|
|
|
|
|
{
|
|
|
|
|
if (input_line_pointer[1] == '\'')
|
|
|
|
|
{
|
|
|
|
|
input_line_pointer++;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
result = (result << 8) | (*input_line_pointer++);
|
|
|
|
|
}
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* Left justify. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
while (scan < nbytes)
|
|
|
|
|
{
|
|
|
|
|
result <<= 8;
|
|
|
|
|
scan++;
|
|
|
|
|
}
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* Create correct expression. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
exp->X_op = O_constant;
|
|
|
|
|
exp->X_add_number = result;
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* Fake it so that we can read the next char too. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
if (input_line_pointer[0] != '\'' ||
|
|
|
|
|
(input_line_pointer[0] == '\'' && input_line_pointer[1] == '\''))
|
|
|
|
|
{
|
|
|
|
|
input_line_pointer -= 2;
|
|
|
|
|
input_line_pointer[0] = ',';
|
|
|
|
|
input_line_pointer[1] = '\'';
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
input_line_pointer++;
|
|
|
|
|
}
|
|
|
|
|
}
|
2000-02-24 01:56:31 +00:00
|
|
|
|
#endif /* TC_M68K */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
#ifdef REPEAT_CONS_EXPRESSIONS
|
|
|
|
|
|
|
|
|
|
/* Parse a repeat expression for cons. This is used by the MIPS
|
|
|
|
|
assembler. The format is NUMBER:COUNT; NUMBER appears in the
|
|
|
|
|
object file COUNT times.
|
|
|
|
|
|
|
|
|
|
To use this for a target, define REPEAT_CONS_EXPRESSIONS. */
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
parse_repeat_cons (exp, nbytes)
|
|
|
|
|
expressionS *exp;
|
|
|
|
|
unsigned int nbytes;
|
|
|
|
|
{
|
|
|
|
|
expressionS count;
|
|
|
|
|
register int i;
|
|
|
|
|
|
|
|
|
|
expression (exp);
|
|
|
|
|
|
|
|
|
|
if (*input_line_pointer != ':')
|
|
|
|
|
{
|
|
|
|
|
/* No repeat count. */
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
++input_line_pointer;
|
|
|
|
|
expression (&count);
|
|
|
|
|
if (count.X_op != O_constant
|
|
|
|
|
|| count.X_add_number <= 0)
|
|
|
|
|
{
|
|
|
|
|
as_warn (_("Unresolvable or nonpositive repeat count; using 1"));
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* The cons function is going to output this expression once. So we
|
|
|
|
|
output it count - 1 times. */
|
|
|
|
|
for (i = count.X_add_number - 1; i > 0; i--)
|
|
|
|
|
emit_expr (exp, nbytes);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#endif /* REPEAT_CONS_EXPRESSIONS */
|
|
|
|
|
|
|
|
|
|
/* Parse a floating point number represented as a hex constant. This
|
|
|
|
|
permits users to specify the exact bits they want in the floating
|
|
|
|
|
point number. */
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
hex_float (float_type, bytes)
|
|
|
|
|
int float_type;
|
|
|
|
|
char *bytes;
|
|
|
|
|
{
|
|
|
|
|
int length;
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
switch (float_type)
|
|
|
|
|
{
|
|
|
|
|
case 'f':
|
|
|
|
|
case 'F':
|
|
|
|
|
case 's':
|
|
|
|
|
case 'S':
|
|
|
|
|
length = 4;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case 'd':
|
|
|
|
|
case 'D':
|
|
|
|
|
case 'r':
|
|
|
|
|
case 'R':
|
|
|
|
|
length = 8;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case 'x':
|
|
|
|
|
case 'X':
|
|
|
|
|
length = 12;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case 'p':
|
|
|
|
|
case 'P':
|
|
|
|
|
length = 12;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
default:
|
|
|
|
|
as_bad (_("Unknown floating type type '%c'"), float_type);
|
|
|
|
|
return -1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* It would be nice if we could go through expression to parse the
|
|
|
|
|
hex constant, but if we get a bignum it's a pain to sort it into
|
|
|
|
|
the buffer correctly. */
|
|
|
|
|
i = 0;
|
|
|
|
|
while (hex_p (*input_line_pointer) || *input_line_pointer == '_')
|
|
|
|
|
{
|
|
|
|
|
int d;
|
|
|
|
|
|
|
|
|
|
/* The MRI assembler accepts arbitrary underscores strewn about
|
2000-07-20 17:12:25 +00:00
|
|
|
|
through the hex constant, so we ignore them as well. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
if (*input_line_pointer == '_')
|
|
|
|
|
{
|
|
|
|
|
++input_line_pointer;
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (i >= length)
|
|
|
|
|
{
|
|
|
|
|
as_warn (_("Floating point constant too large"));
|
|
|
|
|
return -1;
|
|
|
|
|
}
|
|
|
|
|
d = hex_value (*input_line_pointer) << 4;
|
|
|
|
|
++input_line_pointer;
|
|
|
|
|
while (*input_line_pointer == '_')
|
|
|
|
|
++input_line_pointer;
|
|
|
|
|
if (hex_p (*input_line_pointer))
|
|
|
|
|
{
|
|
|
|
|
d += hex_value (*input_line_pointer);
|
|
|
|
|
++input_line_pointer;
|
|
|
|
|
}
|
|
|
|
|
if (target_big_endian)
|
|
|
|
|
bytes[i] = d;
|
|
|
|
|
else
|
|
|
|
|
bytes[length - i - 1] = d;
|
|
|
|
|
++i;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (i < length)
|
|
|
|
|
{
|
|
|
|
|
if (target_big_endian)
|
|
|
|
|
memset (bytes + i, 0, length - i);
|
|
|
|
|
else
|
|
|
|
|
memset (bytes, 0, length - i);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return length;
|
|
|
|
|
}
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* float_cons()
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
CONStruct some more frag chars of .floats .ffloats etc.
|
|
|
|
|
Makes 0 or more new frags.
|
|
|
|
|
If need_pass_2 == 1, no frags are emitted.
|
|
|
|
|
This understands only floating literals, not expressions. Sorry.
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
A floating constant is defined by atof_generic(), except it is preceded
|
|
|
|
|
by 0d 0f 0g or 0h. After observing the STRANGE way my BSD AS does its
|
|
|
|
|
reading, I decided to be incompatible. This always tries to give you
|
|
|
|
|
rounded bits to the precision of the pseudo-op. Former AS did premature
|
|
|
|
|
truncatation, restored noisy bits instead of trailing 0s AND gave you
|
|
|
|
|
a choice of 2 flavours of noise according to which of 2 floating-point
|
|
|
|
|
scanners you directed AS to use.
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
In: input_line_pointer->whitespace before, or '0' of flonum. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
float_cons (float_type)
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* Clobbers input_line-pointer, checks end-of-line. */
|
|
|
|
|
register int float_type; /* 'f':.ffloat ... 'F':.float ... */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
register char *p;
|
2000-07-20 17:12:25 +00:00
|
|
|
|
int length; /* Number of chars in an object. */
|
|
|
|
|
register char *err; /* Error from scanning floating literal. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
char temp[MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT];
|
|
|
|
|
|
|
|
|
|
if (is_it_end_of_statement ())
|
|
|
|
|
{
|
|
|
|
|
demand_empty_rest_of_line ();
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#ifdef md_flush_pending_output
|
|
|
|
|
md_flush_pending_output ();
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
do
|
|
|
|
|
{
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* input_line_pointer->1st char of a flonum (we hope!). */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
SKIP_WHITESPACE ();
|
|
|
|
|
|
|
|
|
|
/* Skip any 0{letter} that may be present. Don't even check if the
|
2000-07-20 17:12:25 +00:00
|
|
|
|
letter is legal. Someone may invent a "z" format and this routine
|
|
|
|
|
has no use for such information. Lusers beware: you get
|
|
|
|
|
diagnostics if your input is ill-conditioned. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
if (input_line_pointer[0] == '0'
|
|
|
|
|
&& isalpha ((unsigned char) input_line_pointer[1]))
|
|
|
|
|
input_line_pointer += 2;
|
|
|
|
|
|
|
|
|
|
/* Accept :xxxx, where the x's are hex digits, for a floating
|
|
|
|
|
point with the exact digits specified. */
|
|
|
|
|
if (input_line_pointer[0] == ':')
|
|
|
|
|
{
|
|
|
|
|
++input_line_pointer;
|
|
|
|
|
length = hex_float (float_type, temp);
|
|
|
|
|
if (length < 0)
|
|
|
|
|
{
|
|
|
|
|
ignore_rest_of_line ();
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
err = md_atof (float_type, temp, &length);
|
|
|
|
|
know (length <= MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT);
|
|
|
|
|
know (length > 0);
|
|
|
|
|
if (err)
|
|
|
|
|
{
|
|
|
|
|
as_bad (_("Bad floating literal: %s"), err);
|
|
|
|
|
ignore_rest_of_line ();
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (!need_pass_2)
|
|
|
|
|
{
|
|
|
|
|
int count;
|
|
|
|
|
|
|
|
|
|
count = 1;
|
|
|
|
|
|
|
|
|
|
#ifdef REPEAT_CONS_EXPRESSIONS
|
|
|
|
|
if (*input_line_pointer == ':')
|
|
|
|
|
{
|
|
|
|
|
expressionS count_exp;
|
|
|
|
|
|
|
|
|
|
++input_line_pointer;
|
|
|
|
|
expression (&count_exp);
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
if (count_exp.X_op != O_constant
|
|
|
|
|
|| count_exp.X_add_number <= 0)
|
2000-07-20 17:12:25 +00:00
|
|
|
|
as_warn (_("unresolvable or nonpositive repeat count; using 1"));
|
1999-05-03 07:29:11 +00:00
|
|
|
|
else
|
|
|
|
|
count = count_exp.X_add_number;
|
|
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
while (--count >= 0)
|
|
|
|
|
{
|
|
|
|
|
p = frag_more (length);
|
|
|
|
|
memcpy (p, temp, (unsigned int) length);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
SKIP_WHITESPACE ();
|
|
|
|
|
}
|
|
|
|
|
while (*input_line_pointer++ == ',');
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* Put terminator back into stream. */
|
|
|
|
|
--input_line_pointer;
|
1999-05-03 07:29:11 +00:00
|
|
|
|
demand_empty_rest_of_line ();
|
2000-07-20 17:12:25 +00:00
|
|
|
|
}
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* Return the size of a LEB128 value. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
static inline int
|
|
|
|
|
sizeof_sleb128 (value)
|
|
|
|
|
offsetT value;
|
|
|
|
|
{
|
|
|
|
|
register int size = 0;
|
|
|
|
|
register unsigned byte;
|
|
|
|
|
|
|
|
|
|
do
|
|
|
|
|
{
|
|
|
|
|
byte = (value & 0x7f);
|
|
|
|
|
/* Sadly, we cannot rely on typical arithmetic right shift behaviour.
|
|
|
|
|
Fortunately, we can structure things so that the extra work reduces
|
|
|
|
|
to a noop on systems that do things "properly". */
|
|
|
|
|
value = (value >> 7) | ~(-(offsetT)1 >> 7);
|
|
|
|
|
size += 1;
|
|
|
|
|
}
|
|
|
|
|
while (!(((value == 0) && ((byte & 0x40) == 0))
|
|
|
|
|
|| ((value == -1) && ((byte & 0x40) != 0))));
|
|
|
|
|
|
|
|
|
|
return size;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline int
|
|
|
|
|
sizeof_uleb128 (value)
|
|
|
|
|
valueT value;
|
|
|
|
|
{
|
|
|
|
|
register int size = 0;
|
|
|
|
|
register unsigned byte;
|
|
|
|
|
|
|
|
|
|
do
|
|
|
|
|
{
|
|
|
|
|
byte = (value & 0x7f);
|
|
|
|
|
value >>= 7;
|
|
|
|
|
size += 1;
|
|
|
|
|
}
|
|
|
|
|
while (value != 0);
|
|
|
|
|
|
|
|
|
|
return size;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
sizeof_leb128 (value, sign)
|
|
|
|
|
valueT value;
|
|
|
|
|
int sign;
|
|
|
|
|
{
|
|
|
|
|
if (sign)
|
|
|
|
|
return sizeof_sleb128 ((offsetT) value);
|
|
|
|
|
else
|
|
|
|
|
return sizeof_uleb128 (value);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Output a LEB128 value. */
|
|
|
|
|
|
|
|
|
|
static inline int
|
|
|
|
|
output_sleb128 (p, value)
|
|
|
|
|
char *p;
|
|
|
|
|
offsetT value;
|
|
|
|
|
{
|
|
|
|
|
register char *orig = p;
|
|
|
|
|
register int more;
|
|
|
|
|
|
|
|
|
|
do
|
|
|
|
|
{
|
|
|
|
|
unsigned byte = (value & 0x7f);
|
|
|
|
|
|
|
|
|
|
/* Sadly, we cannot rely on typical arithmetic right shift behaviour.
|
|
|
|
|
Fortunately, we can structure things so that the extra work reduces
|
|
|
|
|
to a noop on systems that do things "properly". */
|
|
|
|
|
value = (value >> 7) | ~(-(offsetT)1 >> 7);
|
|
|
|
|
|
|
|
|
|
more = !((((value == 0) && ((byte & 0x40) == 0))
|
|
|
|
|
|| ((value == -1) && ((byte & 0x40) != 0))));
|
|
|
|
|
if (more)
|
|
|
|
|
byte |= 0x80;
|
|
|
|
|
|
|
|
|
|
*p++ = byte;
|
|
|
|
|
}
|
|
|
|
|
while (more);
|
|
|
|
|
|
|
|
|
|
return p - orig;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline int
|
|
|
|
|
output_uleb128 (p, value)
|
|
|
|
|
char *p;
|
|
|
|
|
valueT value;
|
|
|
|
|
{
|
|
|
|
|
char *orig = p;
|
|
|
|
|
|
|
|
|
|
do
|
|
|
|
|
{
|
|
|
|
|
unsigned byte = (value & 0x7f);
|
|
|
|
|
value >>= 7;
|
|
|
|
|
if (value != 0)
|
|
|
|
|
/* More bytes to follow. */
|
|
|
|
|
byte |= 0x80;
|
|
|
|
|
|
|
|
|
|
*p++ = byte;
|
|
|
|
|
}
|
|
|
|
|
while (value != 0);
|
|
|
|
|
|
|
|
|
|
return p - orig;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
output_leb128 (p, value, sign)
|
|
|
|
|
char *p;
|
|
|
|
|
valueT value;
|
|
|
|
|
int sign;
|
|
|
|
|
{
|
|
|
|
|
if (sign)
|
|
|
|
|
return output_sleb128 (p, (offsetT) value);
|
|
|
|
|
else
|
|
|
|
|
return output_uleb128 (p, value);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Do the same for bignums. We combine sizeof with output here in that
|
|
|
|
|
we don't output for NULL values of P. It isn't really as critical as
|
|
|
|
|
for "normal" values that this be streamlined. */
|
|
|
|
|
|
1999-05-17 03:21:46 +00:00
|
|
|
|
static inline int
|
1999-05-03 07:29:11 +00:00
|
|
|
|
output_big_sleb128 (p, bignum, size)
|
|
|
|
|
char *p;
|
|
|
|
|
LITTLENUM_TYPE *bignum;
|
|
|
|
|
int size;
|
|
|
|
|
{
|
|
|
|
|
char *orig = p;
|
|
|
|
|
valueT val = 0;
|
|
|
|
|
int loaded = 0;
|
|
|
|
|
unsigned byte;
|
|
|
|
|
|
|
|
|
|
/* Strip leading sign extensions off the bignum. */
|
2000-07-20 17:12:25 +00:00
|
|
|
|
while (size > 0 && bignum[size - 1] == (LITTLENUM_TYPE) -1)
|
1999-05-03 07:29:11 +00:00
|
|
|
|
size--;
|
|
|
|
|
|
|
|
|
|
do
|
|
|
|
|
{
|
|
|
|
|
if (loaded < 7 && size > 0)
|
|
|
|
|
{
|
|
|
|
|
val |= (*bignum << loaded);
|
|
|
|
|
loaded += 8 * CHARS_PER_LITTLENUM;
|
|
|
|
|
size--;
|
|
|
|
|
bignum++;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
byte = val & 0x7f;
|
|
|
|
|
loaded -= 7;
|
|
|
|
|
val >>= 7;
|
|
|
|
|
|
|
|
|
|
if (size == 0)
|
|
|
|
|
{
|
|
|
|
|
if ((val == 0 && (byte & 0x40) == 0)
|
2000-07-20 17:12:25 +00:00
|
|
|
|
|| (~(val | ~(((valueT) 1 << loaded) - 1)) == 0
|
1999-05-03 07:29:11 +00:00
|
|
|
|
&& (byte & 0x40) != 0))
|
|
|
|
|
byte |= 0x80;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (orig)
|
|
|
|
|
*p = byte;
|
|
|
|
|
p++;
|
|
|
|
|
}
|
|
|
|
|
while (byte & 0x80);
|
|
|
|
|
|
|
|
|
|
return p - orig;
|
|
|
|
|
}
|
|
|
|
|
|
1999-05-17 03:21:46 +00:00
|
|
|
|
static inline int
|
1999-05-03 07:29:11 +00:00
|
|
|
|
output_big_uleb128 (p, bignum, size)
|
|
|
|
|
char *p;
|
|
|
|
|
LITTLENUM_TYPE *bignum;
|
|
|
|
|
int size;
|
|
|
|
|
{
|
|
|
|
|
char *orig = p;
|
|
|
|
|
valueT val = 0;
|
|
|
|
|
int loaded = 0;
|
|
|
|
|
unsigned byte;
|
|
|
|
|
|
|
|
|
|
/* Strip leading zeros off the bignum. */
|
|
|
|
|
/* XXX: Is this needed? */
|
2000-07-20 17:12:25 +00:00
|
|
|
|
while (size > 0 && bignum[size - 1] == 0)
|
1999-05-03 07:29:11 +00:00
|
|
|
|
size--;
|
|
|
|
|
|
|
|
|
|
do
|
|
|
|
|
{
|
|
|
|
|
if (loaded < 7 && size > 0)
|
|
|
|
|
{
|
|
|
|
|
val |= (*bignum << loaded);
|
|
|
|
|
loaded += 8 * CHARS_PER_LITTLENUM;
|
|
|
|
|
size--;
|
|
|
|
|
bignum++;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
byte = val & 0x7f;
|
|
|
|
|
loaded -= 7;
|
|
|
|
|
val >>= 7;
|
|
|
|
|
|
|
|
|
|
if (size > 0 || val)
|
|
|
|
|
byte |= 0x80;
|
|
|
|
|
|
|
|
|
|
if (orig)
|
|
|
|
|
*p = byte;
|
|
|
|
|
p++;
|
|
|
|
|
}
|
|
|
|
|
while (byte & 0x80);
|
|
|
|
|
|
|
|
|
|
return p - orig;
|
|
|
|
|
}
|
|
|
|
|
|
1999-05-17 03:21:46 +00:00
|
|
|
|
static int
|
1999-05-03 07:29:11 +00:00
|
|
|
|
output_big_leb128 (p, bignum, size, sign)
|
|
|
|
|
char *p;
|
|
|
|
|
LITTLENUM_TYPE *bignum;
|
|
|
|
|
int size, sign;
|
|
|
|
|
{
|
|
|
|
|
if (sign)
|
|
|
|
|
return output_big_sleb128 (p, bignum, size);
|
|
|
|
|
else
|
|
|
|
|
return output_big_uleb128 (p, bignum, size);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Generate the appropriate fragments for a given expression to emit a
|
|
|
|
|
leb128 value. */
|
|
|
|
|
|
|
|
|
|
void
|
2000-07-20 17:12:25 +00:00
|
|
|
|
emit_leb128_expr (exp, sign)
|
1999-05-03 07:29:11 +00:00
|
|
|
|
expressionS *exp;
|
|
|
|
|
int sign;
|
|
|
|
|
{
|
|
|
|
|
operatorT op = exp->X_op;
|
2001-05-14 22:37:47 +00:00
|
|
|
|
int nbytes;
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
if (op == O_absent || op == O_illegal)
|
|
|
|
|
{
|
|
|
|
|
as_warn (_("zero assumed for missing expression"));
|
|
|
|
|
exp->X_add_number = 0;
|
|
|
|
|
op = O_constant;
|
|
|
|
|
}
|
|
|
|
|
else if (op == O_big && exp->X_add_number <= 0)
|
|
|
|
|
{
|
|
|
|
|
as_bad (_("floating point number invalid; zero assumed"));
|
|
|
|
|
exp->X_add_number = 0;
|
|
|
|
|
op = O_constant;
|
|
|
|
|
}
|
|
|
|
|
else if (op == O_register)
|
|
|
|
|
{
|
|
|
|
|
as_warn (_("register value used as expression"));
|
|
|
|
|
op = O_constant;
|
|
|
|
|
}
|
|
|
|
|
|
2001-05-14 22:37:47 +00:00
|
|
|
|
/* Let check_eh_frame know that data is being emitted. nbytes == -1 is
|
|
|
|
|
a signal that this is leb128 data. It shouldn't optimize this away. */
|
|
|
|
|
nbytes = -1;
|
|
|
|
|
if (check_eh_frame (exp, &nbytes))
|
|
|
|
|
abort ();
|
|
|
|
|
|
2001-05-31 00:00:30 +00:00
|
|
|
|
/* Let the backend know that subsequent data may be byte aligned. */
|
|
|
|
|
#ifdef md_cons_align
|
|
|
|
|
md_cons_align (1);
|
|
|
|
|
#endif
|
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
if (op == O_constant)
|
|
|
|
|
{
|
|
|
|
|
/* If we've got a constant, emit the thing directly right now. */
|
|
|
|
|
|
|
|
|
|
valueT value = exp->X_add_number;
|
|
|
|
|
int size;
|
|
|
|
|
char *p;
|
|
|
|
|
|
|
|
|
|
size = sizeof_leb128 (value, sign);
|
|
|
|
|
p = frag_more (size);
|
|
|
|
|
output_leb128 (p, value, sign);
|
|
|
|
|
}
|
|
|
|
|
else if (op == O_big)
|
|
|
|
|
{
|
|
|
|
|
/* O_big is a different sort of constant. */
|
|
|
|
|
|
|
|
|
|
int size;
|
|
|
|
|
char *p;
|
|
|
|
|
|
|
|
|
|
size = output_big_leb128 (NULL, generic_bignum, exp->X_add_number, sign);
|
|
|
|
|
p = frag_more (size);
|
|
|
|
|
output_big_leb128 (p, generic_bignum, exp->X_add_number, sign);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* Otherwise, we have to create a variable sized fragment and
|
1999-05-03 07:29:11 +00:00
|
|
|
|
resolve things later. */
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
frag_var (rs_leb128, sizeof_uleb128 (~(valueT) 0), 0, sign,
|
1999-05-03 07:29:11 +00:00
|
|
|
|
make_expr_symbol (exp), 0, (char *) NULL);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Parse the .sleb128 and .uleb128 pseudos. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
s_leb128 (sign)
|
|
|
|
|
int sign;
|
|
|
|
|
{
|
|
|
|
|
expressionS exp;
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
do
|
|
|
|
|
{
|
|
|
|
|
expression (&exp);
|
|
|
|
|
emit_leb128_expr (&exp, sign);
|
|
|
|
|
}
|
|
|
|
|
while (*input_line_pointer++ == ',');
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
input_line_pointer--;
|
|
|
|
|
demand_empty_rest_of_line ();
|
|
|
|
|
}
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* We read 0 or more ',' separated, double-quoted strings.
|
|
|
|
|
Caller should have checked need_pass_2 is FALSE because we don't
|
|
|
|
|
check it. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
stringer (append_zero) /* Worker to do .ascii etc statements. */
|
|
|
|
|
/* Checks end-of-line. */
|
|
|
|
|
register int append_zero; /* 0: don't append '\0', else 1. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
register unsigned int c;
|
|
|
|
|
char *start;
|
|
|
|
|
|
|
|
|
|
#ifdef md_flush_pending_output
|
|
|
|
|
md_flush_pending_output ();
|
|
|
|
|
#endif
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* The following awkward logic is to parse ZERO or more strings,
|
|
|
|
|
comma separated. Recall a string expression includes spaces
|
|
|
|
|
before the opening '\"' and spaces after the closing '\"'.
|
|
|
|
|
We fake a leading ',' if there is (supposed to be)
|
|
|
|
|
a 1st, expression. We keep demanding expressions for each ','. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
if (is_it_end_of_statement ())
|
|
|
|
|
{
|
2000-07-20 17:12:25 +00:00
|
|
|
|
c = 0; /* Skip loop. */
|
|
|
|
|
++input_line_pointer; /* Compensate for end of loop. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
2000-07-20 17:12:25 +00:00
|
|
|
|
c = ','; /* Do loop. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
}
|
|
|
|
|
while (c == ',' || c == '<' || c == '"')
|
|
|
|
|
{
|
|
|
|
|
SKIP_WHITESPACE ();
|
|
|
|
|
switch (*input_line_pointer)
|
|
|
|
|
{
|
|
|
|
|
case '\"':
|
2000-07-20 17:12:25 +00:00
|
|
|
|
++input_line_pointer; /*->1st char of string. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
start = input_line_pointer;
|
|
|
|
|
while (is_a_char (c = next_char_of_string ()))
|
|
|
|
|
{
|
|
|
|
|
FRAG_APPEND_1_CHAR (c);
|
|
|
|
|
}
|
|
|
|
|
if (append_zero)
|
|
|
|
|
{
|
|
|
|
|
FRAG_APPEND_1_CHAR (0);
|
|
|
|
|
}
|
|
|
|
|
know (input_line_pointer[-1] == '\"');
|
|
|
|
|
|
|
|
|
|
#ifndef NO_LISTING
|
|
|
|
|
#ifdef OBJ_ELF
|
|
|
|
|
/* In ELF, when gcc is emitting DWARF 1 debugging output, it
|
|
|
|
|
will emit .string with a filename in the .debug section
|
|
|
|
|
after a sequence of constants. See the comment in
|
|
|
|
|
emit_expr for the sequence. emit_expr will set
|
|
|
|
|
dwarf_file_string to non-zero if this string might be a
|
|
|
|
|
source file name. */
|
|
|
|
|
if (strcmp (segment_name (now_seg), ".debug") != 0)
|
|
|
|
|
dwarf_file_string = 0;
|
|
|
|
|
else if (dwarf_file_string)
|
|
|
|
|
{
|
|
|
|
|
c = input_line_pointer[-1];
|
|
|
|
|
input_line_pointer[-1] = '\0';
|
|
|
|
|
listing_source_file (start);
|
|
|
|
|
input_line_pointer[-1] = c;
|
|
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
break;
|
|
|
|
|
case '<':
|
|
|
|
|
input_line_pointer++;
|
|
|
|
|
c = get_single_number ();
|
|
|
|
|
FRAG_APPEND_1_CHAR (c);
|
|
|
|
|
if (*input_line_pointer != '>')
|
|
|
|
|
{
|
|
|
|
|
as_bad (_("Expected <nn>"));
|
|
|
|
|
}
|
|
|
|
|
input_line_pointer++;
|
|
|
|
|
break;
|
|
|
|
|
case ',':
|
|
|
|
|
input_line_pointer++;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
SKIP_WHITESPACE ();
|
|
|
|
|
c = *input_line_pointer;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
demand_empty_rest_of_line ();
|
|
|
|
|
} /* stringer() */
|
|
|
|
|
|
|
|
|
|
/* FIXME-SOMEDAY: I had trouble here on characters with the
|
|
|
|
|
high bits set. We'll probably also have trouble with
|
|
|
|
|
multibyte chars, wide chars, etc. Also be careful about
|
2000-07-20 17:12:25 +00:00
|
|
|
|
returning values bigger than 1 byte. xoxorich. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
unsigned int
|
1999-05-03 07:29:11 +00:00
|
|
|
|
next_char_of_string ()
|
|
|
|
|
{
|
|
|
|
|
register unsigned int c;
|
|
|
|
|
|
|
|
|
|
c = *input_line_pointer++ & CHAR_MASK;
|
|
|
|
|
switch (c)
|
|
|
|
|
{
|
|
|
|
|
case '\"':
|
|
|
|
|
c = NOT_A_CHAR;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case '\n':
|
|
|
|
|
as_warn (_("Unterminated string: Newline inserted."));
|
|
|
|
|
bump_line_counters ();
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
#ifndef NO_STRING_ESCAPES
|
|
|
|
|
case '\\':
|
|
|
|
|
switch (c = *input_line_pointer++)
|
|
|
|
|
{
|
|
|
|
|
case 'b':
|
|
|
|
|
c = '\b';
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case 'f':
|
|
|
|
|
c = '\f';
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case 'n':
|
|
|
|
|
c = '\n';
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case 'r':
|
|
|
|
|
c = '\r';
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case 't':
|
|
|
|
|
c = '\t';
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case 'v':
|
|
|
|
|
c = '\013';
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case '\\':
|
|
|
|
|
case '"':
|
2000-07-20 17:12:25 +00:00
|
|
|
|
break; /* As itself. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
case '0':
|
|
|
|
|
case '1':
|
|
|
|
|
case '2':
|
|
|
|
|
case '3':
|
|
|
|
|
case '4':
|
|
|
|
|
case '5':
|
|
|
|
|
case '6':
|
|
|
|
|
case '7':
|
|
|
|
|
case '8':
|
|
|
|
|
case '9':
|
|
|
|
|
{
|
|
|
|
|
long number;
|
|
|
|
|
int i;
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
for (i = 0, number = 0;
|
|
|
|
|
isdigit (c) && i < 3;
|
|
|
|
|
c = *input_line_pointer++, i++)
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
number = number * 8 + c - '0';
|
|
|
|
|
}
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
c = number & 0xff;
|
|
|
|
|
}
|
|
|
|
|
--input_line_pointer;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case 'x':
|
|
|
|
|
case 'X':
|
|
|
|
|
{
|
|
|
|
|
long number;
|
|
|
|
|
|
|
|
|
|
number = 0;
|
|
|
|
|
c = *input_line_pointer++;
|
|
|
|
|
while (isxdigit (c))
|
|
|
|
|
{
|
|
|
|
|
if (isdigit (c))
|
|
|
|
|
number = number * 16 + c - '0';
|
|
|
|
|
else if (isupper (c))
|
|
|
|
|
number = number * 16 + c - 'A' + 10;
|
|
|
|
|
else
|
|
|
|
|
number = number * 16 + c - 'a' + 10;
|
|
|
|
|
c = *input_line_pointer++;
|
|
|
|
|
}
|
|
|
|
|
c = number & 0xff;
|
|
|
|
|
--input_line_pointer;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case '\n':
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* To be compatible with BSD 4.2 as: give the luser a linefeed!! */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
as_warn (_("Unterminated string: Newline inserted."));
|
|
|
|
|
c = '\n';
|
|
|
|
|
bump_line_counters ();
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
default:
|
|
|
|
|
|
|
|
|
|
#ifdef ONLY_STANDARD_ESCAPES
|
|
|
|
|
as_bad (_("Bad escaped character in string, '?' assumed"));
|
|
|
|
|
c = '?';
|
|
|
|
|
#endif /* ONLY_STANDARD_ESCAPES */
|
|
|
|
|
|
|
|
|
|
break;
|
2000-07-20 17:12:25 +00:00
|
|
|
|
}
|
1999-05-03 07:29:11 +00:00
|
|
|
|
break;
|
|
|
|
|
#endif /* ! defined (NO_STRING_ESCAPES) */
|
|
|
|
|
|
|
|
|
|
default:
|
|
|
|
|
break;
|
2000-07-20 17:12:25 +00:00
|
|
|
|
}
|
1999-05-03 07:29:11 +00:00
|
|
|
|
return (c);
|
2000-07-20 17:12:25 +00:00
|
|
|
|
}
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
static segT
|
|
|
|
|
get_segmented_expression (expP)
|
|
|
|
|
register expressionS *expP;
|
|
|
|
|
{
|
|
|
|
|
register segT retval;
|
|
|
|
|
|
|
|
|
|
retval = expression (expP);
|
|
|
|
|
if (expP->X_op == O_illegal
|
|
|
|
|
|| expP->X_op == O_absent
|
|
|
|
|
|| expP->X_op == O_big)
|
|
|
|
|
{
|
|
|
|
|
as_bad (_("expected address expression; zero assumed"));
|
|
|
|
|
expP->X_op = O_constant;
|
|
|
|
|
expP->X_add_number = 0;
|
|
|
|
|
retval = absolute_section;
|
|
|
|
|
}
|
|
|
|
|
return retval;
|
|
|
|
|
}
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
static segT
|
1999-05-03 07:29:11 +00:00
|
|
|
|
get_known_segmented_expression (expP)
|
|
|
|
|
register expressionS *expP;
|
|
|
|
|
{
|
|
|
|
|
register segT retval;
|
|
|
|
|
|
|
|
|
|
if ((retval = get_segmented_expression (expP)) == undefined_section)
|
|
|
|
|
{
|
|
|
|
|
/* There is no easy way to extract the undefined symbol from the
|
|
|
|
|
expression. */
|
|
|
|
|
if (expP->X_add_symbol != NULL
|
|
|
|
|
&& S_GET_SEGMENT (expP->X_add_symbol) != expr_section)
|
|
|
|
|
as_warn (_("symbol \"%s\" undefined; zero assumed"),
|
|
|
|
|
S_GET_NAME (expP->X_add_symbol));
|
|
|
|
|
else
|
|
|
|
|
as_warn (_("some symbol undefined; zero assumed"));
|
|
|
|
|
retval = absolute_section;
|
|
|
|
|
expP->X_op = O_constant;
|
|
|
|
|
expP->X_add_number = 0;
|
|
|
|
|
}
|
|
|
|
|
know (retval == absolute_section || SEG_NORMAL (retval));
|
|
|
|
|
return (retval);
|
2000-07-20 17:12:25 +00:00
|
|
|
|
}
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
offsetT
|
|
|
|
|
get_absolute_expression ()
|
|
|
|
|
{
|
|
|
|
|
expressionS exp;
|
|
|
|
|
|
|
|
|
|
expression (&exp);
|
|
|
|
|
if (exp.X_op != O_constant)
|
|
|
|
|
{
|
|
|
|
|
if (exp.X_op != O_absent)
|
|
|
|
|
as_bad (_("bad or irreducible absolute expression; zero assumed"));
|
|
|
|
|
exp.X_add_number = 0;
|
|
|
|
|
}
|
|
|
|
|
return exp.X_add_number;
|
|
|
|
|
}
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
char /* Return terminator. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
get_absolute_expression_and_terminator (val_pointer)
|
2000-07-20 17:12:25 +00:00
|
|
|
|
long *val_pointer; /* Return value of expression. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
/* FIXME: val_pointer should probably be offsetT *. */
|
|
|
|
|
*val_pointer = (long) get_absolute_expression ();
|
|
|
|
|
return (*input_line_pointer++);
|
|
|
|
|
}
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* Like demand_copy_string, but return NULL if the string contains any '\0's.
|
|
|
|
|
Give a warning if that happens. */
|
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
char *
|
|
|
|
|
demand_copy_C_string (len_pointer)
|
|
|
|
|
int *len_pointer;
|
|
|
|
|
{
|
|
|
|
|
register char *s;
|
|
|
|
|
|
|
|
|
|
if ((s = demand_copy_string (len_pointer)) != 0)
|
|
|
|
|
{
|
|
|
|
|
register int len;
|
|
|
|
|
|
|
|
|
|
for (len = *len_pointer; len > 0; len--)
|
|
|
|
|
{
|
|
|
|
|
if (*s == 0)
|
|
|
|
|
{
|
|
|
|
|
s = 0;
|
|
|
|
|
len = 1;
|
|
|
|
|
*len_pointer = 0;
|
|
|
|
|
as_bad (_("This string may not contain \'\\0\'"));
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
return s;
|
|
|
|
|
}
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* Demand string, but return a safe (=private) copy of the string.
|
|
|
|
|
Return NULL if we can't read a string here. */
|
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
char *
|
|
|
|
|
demand_copy_string (lenP)
|
|
|
|
|
int *lenP;
|
|
|
|
|
{
|
|
|
|
|
register unsigned int c;
|
|
|
|
|
register int len;
|
|
|
|
|
char *retval;
|
|
|
|
|
|
|
|
|
|
len = 0;
|
|
|
|
|
SKIP_WHITESPACE ();
|
|
|
|
|
if (*input_line_pointer == '\"')
|
|
|
|
|
{
|
2000-07-20 17:12:25 +00:00
|
|
|
|
input_line_pointer++; /* Skip opening quote. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
while (is_a_char (c = next_char_of_string ()))
|
|
|
|
|
{
|
|
|
|
|
obstack_1grow (¬es, c);
|
|
|
|
|
len++;
|
|
|
|
|
}
|
|
|
|
|
/* JF this next line is so demand_copy_C_string will return a
|
2000-07-20 17:12:25 +00:00
|
|
|
|
null terminated string. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
obstack_1grow (¬es, '\0');
|
|
|
|
|
retval = obstack_finish (¬es);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
as_warn (_("Missing string"));
|
|
|
|
|
retval = NULL;
|
|
|
|
|
ignore_rest_of_line ();
|
|
|
|
|
}
|
|
|
|
|
*lenP = len;
|
|
|
|
|
return (retval);
|
2000-07-20 17:12:25 +00:00
|
|
|
|
}
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* In: Input_line_pointer->next character.
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
Do: Skip input_line_pointer over all whitespace.
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
Out: 1 if input_line_pointer->end-of-line. */
|
|
|
|
|
|
|
|
|
|
int
|
1999-05-03 07:29:11 +00:00
|
|
|
|
is_it_end_of_statement ()
|
|
|
|
|
{
|
|
|
|
|
SKIP_WHITESPACE ();
|
|
|
|
|
return (is_end_of_line[(unsigned char) *input_line_pointer]);
|
2000-07-20 17:12:25 +00:00
|
|
|
|
}
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
void
|
1999-05-03 07:29:11 +00:00
|
|
|
|
equals (sym_name, reassign)
|
|
|
|
|
char *sym_name;
|
|
|
|
|
int reassign;
|
|
|
|
|
{
|
2000-07-20 17:12:25 +00:00
|
|
|
|
register symbolS *symbolP; /* Symbol we are working with. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
char *stop = NULL;
|
|
|
|
|
char stopc;
|
|
|
|
|
|
|
|
|
|
input_line_pointer++;
|
|
|
|
|
if (*input_line_pointer == '=')
|
|
|
|
|
input_line_pointer++;
|
|
|
|
|
|
|
|
|
|
while (*input_line_pointer == ' ' || *input_line_pointer == '\t')
|
|
|
|
|
input_line_pointer++;
|
|
|
|
|
|
|
|
|
|
if (flag_mri)
|
|
|
|
|
stop = mri_comment_field (&stopc);
|
|
|
|
|
|
|
|
|
|
if (sym_name[0] == '.' && sym_name[1] == '\0')
|
|
|
|
|
{
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* Turn '. = mumble' into a .org mumble. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
register segT segment;
|
|
|
|
|
expressionS exp;
|
|
|
|
|
|
|
|
|
|
segment = get_known_segmented_expression (&exp);
|
|
|
|
|
if (!need_pass_2)
|
|
|
|
|
do_org (segment, &exp, 0);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
2001-03-28 17:24:01 +00:00
|
|
|
|
#ifdef OBJ_COFF
|
|
|
|
|
int local;
|
|
|
|
|
|
|
|
|
|
symbolP = symbol_find (sym_name);
|
|
|
|
|
local = symbolP == NULL;
|
|
|
|
|
if (local)
|
|
|
|
|
#endif /* OBJ_COFF */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
symbolP = symbol_find_or_make (sym_name);
|
|
|
|
|
/* Permit register names to be redefined. */
|
2000-07-20 17:12:25 +00:00
|
|
|
|
if (!reassign
|
1999-05-03 07:29:11 +00:00
|
|
|
|
&& S_IS_DEFINED (symbolP)
|
|
|
|
|
&& S_GET_SEGMENT (symbolP) != reg_section)
|
|
|
|
|
as_bad (_("symbol `%s' already defined"), S_GET_NAME (symbolP));
|
2001-03-27 19:13:55 +00:00
|
|
|
|
|
|
|
|
|
#ifdef OBJ_COFF
|
|
|
|
|
/* "set" symbols are local unless otherwise specified. */
|
2001-03-28 17:24:01 +00:00
|
|
|
|
if (local)
|
|
|
|
|
SF_SET_LOCAL (symbolP);
|
2001-03-27 19:13:55 +00:00
|
|
|
|
#endif /* OBJ_COFF */
|
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
pseudo_set (symbolP);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (flag_mri)
|
2000-07-20 17:12:25 +00:00
|
|
|
|
{
|
|
|
|
|
/* Check garbage after the expression. */
|
|
|
|
|
ignore_rest_of_line ();
|
|
|
|
|
mri_comment_end (stop, stopc);
|
|
|
|
|
}
|
|
|
|
|
}
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
2001-07-09 08:19:18 +00:00
|
|
|
|
/* .incbin -- include a file verbatim at the current location. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
s_incbin (x)
|
|
|
|
|
int x ATTRIBUTE_UNUSED;
|
|
|
|
|
{
|
|
|
|
|
FILE * binfile;
|
|
|
|
|
char * path;
|
|
|
|
|
char * filename;
|
|
|
|
|
char * binfrag;
|
|
|
|
|
long skip = 0;
|
|
|
|
|
long count = 0;
|
|
|
|
|
long bytes;
|
|
|
|
|
int len;
|
|
|
|
|
|
|
|
|
|
#ifdef md_flush_pending_output
|
|
|
|
|
md_flush_pending_output ();
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
SKIP_WHITESPACE ();
|
|
|
|
|
filename = demand_copy_string (& len);
|
|
|
|
|
if (filename == NULL)
|
|
|
|
|
return;
|
|
|
|
|
|
|
|
|
|
SKIP_WHITESPACE ();
|
|
|
|
|
|
|
|
|
|
/* Look for optional skip and count. */
|
|
|
|
|
if (* input_line_pointer == ',')
|
|
|
|
|
{
|
|
|
|
|
++ input_line_pointer;
|
|
|
|
|
skip = get_absolute_expression ();
|
|
|
|
|
|
|
|
|
|
SKIP_WHITESPACE ();
|
|
|
|
|
|
|
|
|
|
if (* input_line_pointer == ',')
|
|
|
|
|
{
|
|
|
|
|
++ input_line_pointer;
|
|
|
|
|
|
|
|
|
|
count = get_absolute_expression ();
|
|
|
|
|
if (count == 0)
|
|
|
|
|
as_warn (_(".incbin count zero, ignoring `%s'"), filename);
|
|
|
|
|
|
|
|
|
|
SKIP_WHITESPACE ();
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
demand_empty_rest_of_line ();
|
|
|
|
|
|
|
|
|
|
/* Try opening absolute path first, then try include dirs. */
|
2001-07-10 09:45:50 +00:00
|
|
|
|
binfile = fopen (filename, FOPEN_RB);
|
2001-07-09 08:19:18 +00:00
|
|
|
|
if (binfile == NULL)
|
|
|
|
|
{
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
path = xmalloc ((unsigned long) len + include_dir_maxlen + 5);
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < include_dir_count; i++)
|
|
|
|
|
{
|
|
|
|
|
sprintf (path, "%s/%s", include_dirs[i], filename);
|
|
|
|
|
|
2001-07-10 09:45:50 +00:00
|
|
|
|
binfile = fopen (path, FOPEN_RB);
|
2001-07-09 08:19:18 +00:00
|
|
|
|
if (binfile != NULL)
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (binfile == NULL)
|
|
|
|
|
as_bad (_("file not found: %s"), filename);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
path = xstrdup (filename);
|
|
|
|
|
|
|
|
|
|
if (binfile)
|
|
|
|
|
{
|
2001-07-10 09:45:50 +00:00
|
|
|
|
long file_len;
|
|
|
|
|
|
2001-07-09 08:19:18 +00:00
|
|
|
|
register_dependency (path);
|
|
|
|
|
|
|
|
|
|
/* Compute the length of the file. */
|
|
|
|
|
if (fseek (binfile, 0, SEEK_END) != 0)
|
|
|
|
|
{
|
|
|
|
|
as_bad (_("seek to end of .incbin file failed `%s'"), path);
|
|
|
|
|
goto done;
|
|
|
|
|
}
|
2001-07-10 09:45:50 +00:00
|
|
|
|
file_len = ftell (binfile);
|
2001-07-09 08:19:18 +00:00
|
|
|
|
|
|
|
|
|
/* If a count was not specified use the size of the file. */
|
|
|
|
|
if (count == 0)
|
2001-07-10 09:45:50 +00:00
|
|
|
|
count = file_len;
|
2001-07-09 08:19:18 +00:00
|
|
|
|
|
2001-07-10 09:45:50 +00:00
|
|
|
|
if (skip + count > file_len)
|
2001-07-09 08:19:18 +00:00
|
|
|
|
{
|
|
|
|
|
as_bad (_("skip (%ld) + count (%ld) larger than file size (%ld)"),
|
2001-07-10 09:45:50 +00:00
|
|
|
|
skip, count, file_len);
|
2001-07-09 08:19:18 +00:00
|
|
|
|
goto done;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (fseek (binfile, skip, SEEK_SET) != 0)
|
|
|
|
|
{
|
|
|
|
|
as_bad (_("could not skip to %ld in file `%s'"), skip, path);
|
|
|
|
|
goto done;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Allocate frag space and store file contents in it. */
|
|
|
|
|
binfrag = frag_more (count);
|
|
|
|
|
|
|
|
|
|
bytes = fread (binfrag, 1, count, binfile);
|
|
|
|
|
if (bytes < count)
|
|
|
|
|
as_warn (_("truncated file `%s', %ld of %ld bytes read"),
|
|
|
|
|
path, bytes, count);
|
|
|
|
|
}
|
|
|
|
|
done:
|
|
|
|
|
if (binfile != NULL)
|
|
|
|
|
fclose (binfile);
|
|
|
|
|
if (path)
|
|
|
|
|
free (path);
|
|
|
|
|
}
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* .include -- include a file at this point. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
void
|
1999-05-03 07:29:11 +00:00
|
|
|
|
s_include (arg)
|
1999-07-11 20:20:04 +00:00
|
|
|
|
int arg ATTRIBUTE_UNUSED;
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
char *filename;
|
|
|
|
|
int i;
|
|
|
|
|
FILE *try;
|
|
|
|
|
char *path;
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
if (!flag_m68k_mri)
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
filename = demand_copy_string (&i);
|
|
|
|
|
if (filename == NULL)
|
|
|
|
|
{
|
|
|
|
|
/* demand_copy_string has already printed an error and
|
|
|
|
|
called ignore_rest_of_line. */
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
SKIP_WHITESPACE ();
|
|
|
|
|
i = 0;
|
2000-07-20 17:12:25 +00:00
|
|
|
|
while (!is_end_of_line[(unsigned char) *input_line_pointer]
|
1999-05-03 07:29:11 +00:00
|
|
|
|
&& *input_line_pointer != ' '
|
|
|
|
|
&& *input_line_pointer != '\t')
|
|
|
|
|
{
|
|
|
|
|
obstack_1grow (¬es, *input_line_pointer);
|
|
|
|
|
++input_line_pointer;
|
|
|
|
|
++i;
|
|
|
|
|
}
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
obstack_1grow (¬es, '\0');
|
|
|
|
|
filename = obstack_finish (¬es);
|
2000-07-20 17:12:25 +00:00
|
|
|
|
while (!is_end_of_line[(unsigned char) *input_line_pointer])
|
1999-05-03 07:29:11 +00:00
|
|
|
|
++input_line_pointer;
|
|
|
|
|
}
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
demand_empty_rest_of_line ();
|
|
|
|
|
path = xmalloc ((unsigned long) i + include_dir_maxlen + 5 /* slop */ );
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
for (i = 0; i < include_dir_count; i++)
|
|
|
|
|
{
|
|
|
|
|
strcpy (path, include_dirs[i]);
|
|
|
|
|
strcat (path, "/");
|
|
|
|
|
strcat (path, filename);
|
2001-07-10 09:45:50 +00:00
|
|
|
|
if (0 != (try = fopen (path, FOPEN_RT)))
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
fclose (try);
|
|
|
|
|
goto gotit;
|
|
|
|
|
}
|
|
|
|
|
}
|
2000-09-12 03:56:22 +00:00
|
|
|
|
|
1999-05-03 07:29:11 +00:00
|
|
|
|
free (path);
|
|
|
|
|
path = filename;
|
|
|
|
|
gotit:
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* malloc Storage leak when file is found on path. FIXME-SOMEDAY. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
register_dependency (path);
|
2000-03-26 14:47:33 +00:00
|
|
|
|
input_scrub_insert_file (path);
|
2000-07-20 17:12:25 +00:00
|
|
|
|
}
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
void
|
1999-05-03 07:29:11 +00:00
|
|
|
|
add_include_dir (path)
|
|
|
|
|
char *path;
|
|
|
|
|
{
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
if (include_dir_count == 0)
|
|
|
|
|
{
|
|
|
|
|
include_dirs = (char **) xmalloc (2 * sizeof (*include_dirs));
|
2000-07-20 17:12:25 +00:00
|
|
|
|
include_dirs[0] = "."; /* Current dir. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
include_dir_count = 2;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
include_dir_count++;
|
2000-07-20 17:12:25 +00:00
|
|
|
|
include_dirs =
|
|
|
|
|
(char **) realloc (include_dirs,
|
|
|
|
|
include_dir_count * sizeof (*include_dirs));
|
1999-05-03 07:29:11 +00:00
|
|
|
|
}
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
include_dirs[include_dir_count - 1] = path; /* New one. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
i = strlen (path);
|
|
|
|
|
if (i > include_dir_maxlen)
|
|
|
|
|
include_dir_maxlen = i;
|
2000-07-20 17:12:25 +00:00
|
|
|
|
}
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
/* Output debugging information to denote the source file. */
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
generate_file_debug ()
|
|
|
|
|
{
|
|
|
|
|
if (debug_type == DEBUG_STABS)
|
|
|
|
|
stabs_generate_asm_file ();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Output line number debugging information for the current source line. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
generate_lineno_debug ()
|
|
|
|
|
{
|
|
|
|
|
switch (debug_type)
|
|
|
|
|
{
|
|
|
|
|
case DEBUG_UNSPECIFIED:
|
|
|
|
|
case DEBUG_NONE:
|
2000-11-17 08:47:52 +00:00
|
|
|
|
case DEBUG_DWARF:
|
1999-05-03 07:29:11 +00:00
|
|
|
|
break;
|
|
|
|
|
case DEBUG_STABS:
|
|
|
|
|
stabs_generate_asm_lineno ();
|
|
|
|
|
break;
|
|
|
|
|
case DEBUG_ECOFF:
|
|
|
|
|
ecoff_generate_asm_lineno ();
|
|
|
|
|
break;
|
|
|
|
|
case DEBUG_DWARF2:
|
2000-11-17 08:47:52 +00:00
|
|
|
|
/* ??? We could here indicate to dwarf2dbg.c that something
|
|
|
|
|
has changed. However, since there is additional backend
|
|
|
|
|
support that is required (calling dwarf2_emit_insn), we
|
|
|
|
|
let dwarf2dbg.c call as_where on its own. */
|
1999-05-03 07:29:11 +00:00
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Output debugging information to mark a function entry point or end point.
|
|
|
|
|
END_P is zero for .func, and non-zero for .endfunc. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
s_func (end_p)
|
|
|
|
|
int end_p;
|
|
|
|
|
{
|
|
|
|
|
do_s_func (end_p, NULL);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Subroutine of s_func so targets can choose a different default prefix.
|
|
|
|
|
If DEFAULT_PREFIX is NULL, use the target's "leading char". */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
do_s_func (end_p, default_prefix)
|
|
|
|
|
int end_p;
|
|
|
|
|
const char *default_prefix;
|
|
|
|
|
{
|
|
|
|
|
/* Record the current function so that we can issue an error message for
|
|
|
|
|
misplaced .func,.endfunc, and also so that .endfunc needs no
|
|
|
|
|
arguments. */
|
|
|
|
|
static char *current_name;
|
|
|
|
|
static char *current_label;
|
|
|
|
|
|
|
|
|
|
if (end_p)
|
|
|
|
|
{
|
|
|
|
|
if (current_name == NULL)
|
|
|
|
|
{
|
|
|
|
|
as_bad (_("missing .func"));
|
|
|
|
|
ignore_rest_of_line ();
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (debug_type == DEBUG_STABS)
|
|
|
|
|
stabs_generate_asm_endfunc (current_name, current_label);
|
|
|
|
|
|
|
|
|
|
current_name = current_label = NULL;
|
|
|
|
|
}
|
|
|
|
|
else /* ! end_p */
|
|
|
|
|
{
|
2000-07-20 17:12:25 +00:00
|
|
|
|
char *name, *label;
|
|
|
|
|
char delim1, delim2;
|
1999-05-03 07:29:11 +00:00
|
|
|
|
|
|
|
|
|
if (current_name != NULL)
|
|
|
|
|
{
|
|
|
|
|
as_bad (_(".endfunc missing for previous .func"));
|
|
|
|
|
ignore_rest_of_line ();
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
name = input_line_pointer;
|
|
|
|
|
delim1 = get_symbol_end ();
|
|
|
|
|
name = xstrdup (name);
|
|
|
|
|
*input_line_pointer = delim1;
|
|
|
|
|
SKIP_WHITESPACE ();
|
|
|
|
|
if (*input_line_pointer != ',')
|
|
|
|
|
{
|
|
|
|
|
if (default_prefix)
|
|
|
|
|
asprintf (&label, "%s%s", default_prefix, name);
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
char leading_char = 0;
|
|
|
|
|
#ifdef BFD_ASSEMBLER
|
|
|
|
|
leading_char = bfd_get_symbol_leading_char (stdoutput);
|
|
|
|
|
#endif
|
|
|
|
|
/* Missing entry point, use function's name with the leading
|
|
|
|
|
char prepended. */
|
|
|
|
|
if (leading_char)
|
|
|
|
|
asprintf (&label, "%c%s", leading_char, name);
|
|
|
|
|
else
|
|
|
|
|
label = name;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
++input_line_pointer;
|
|
|
|
|
SKIP_WHITESPACE ();
|
|
|
|
|
label = input_line_pointer;
|
|
|
|
|
delim2 = get_symbol_end ();
|
|
|
|
|
label = xstrdup (label);
|
|
|
|
|
*input_line_pointer = delim2;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (debug_type == DEBUG_STABS)
|
|
|
|
|
stabs_generate_asm_func (name, label);
|
|
|
|
|
|
|
|
|
|
current_name = name;
|
|
|
|
|
current_label = label;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
demand_empty_rest_of_line ();
|
|
|
|
|
}
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
void
|
1999-05-03 07:29:11 +00:00
|
|
|
|
s_ignore (arg)
|
1999-07-11 20:20:04 +00:00
|
|
|
|
int arg ATTRIBUTE_UNUSED;
|
1999-05-03 07:29:11 +00:00
|
|
|
|
{
|
|
|
|
|
while (!is_end_of_line[(unsigned char) *input_line_pointer])
|
|
|
|
|
{
|
|
|
|
|
++input_line_pointer;
|
|
|
|
|
}
|
|
|
|
|
++input_line_pointer;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
read_print_statistics (file)
|
|
|
|
|
FILE *file;
|
|
|
|
|
{
|
|
|
|
|
hash_print_statistics (file, "pseudo-op table", po_hash);
|
|
|
|
|
}
|
|
|
|
|
|
2000-07-20 17:12:25 +00:00
|
|
|
|
/* Inserts the given line into the input stream.
|
|
|
|
|
|
2000-03-26 14:47:33 +00:00
|
|
|
|
This call avoids macro/conditionals nesting checking, since the contents of
|
|
|
|
|
the line are assumed to replace the contents of a line already scanned.
|
|
|
|
|
|
|
|
|
|
An appropriate use of this function would be substition of input lines when
|
|
|
|
|
called by md_start_line_hook(). The given line is assumed to already be
|
|
|
|
|
properly scrubbed. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
input_scrub_insert_line (line)
|
2000-07-20 17:12:25 +00:00
|
|
|
|
const char *line;
|
2000-03-26 14:47:33 +00:00
|
|
|
|
{
|
|
|
|
|
sb newline;
|
|
|
|
|
sb_new (&newline);
|
|
|
|
|
sb_add_string (&newline, line);
|
|
|
|
|
input_scrub_include_sb (&newline, input_line_pointer, 0);
|
|
|
|
|
sb_kill (&newline);
|
|
|
|
|
buffer_limit = input_scrub_next_buffer (&input_line_pointer);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Insert a file into the input stream; the path must resolve to an actual
|
2000-07-20 17:12:25 +00:00
|
|
|
|
file; no include path searching or dependency registering is performed. */
|
2000-03-26 14:47:33 +00:00
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
input_scrub_insert_file (path)
|
2000-07-20 17:12:25 +00:00
|
|
|
|
char *path;
|
2000-03-26 14:47:33 +00:00
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{
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|
|
|
|
input_scrub_include_file (path, input_line_pointer);
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buffer_limit = input_scrub_next_buffer (&input_line_pointer);
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|
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}
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