170 lines
6.2 KiB
C
170 lines
6.2 KiB
C
/* tc-cris.h -- Header file for tc-cris.c, the CRIS GAS port.
|
|
Copyright (C) 2000-2016 Free Software Foundation, Inc.
|
|
|
|
Contributed by Axis Communications AB, Lund, Sweden.
|
|
Originally written for GAS 1.38.1 by Mikael Asker.
|
|
Updates, BFDizing, GNUifying and ELF by Hans-Peter Nilsson.
|
|
|
|
This file is part of GAS, the GNU Assembler.
|
|
|
|
GAS is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 3, or (at your option)
|
|
any later version.
|
|
|
|
GAS is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with GAS; see the file COPYING. If not, write to the
|
|
Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston,
|
|
MA 02110-1301, USA. */
|
|
|
|
/* See the GAS "internal" document for general documentation on this.
|
|
It is called internals.texi (internals.info when makeinfo:d), but is
|
|
not installed or makeinfo:d by "make info". */
|
|
|
|
/* Functions and variables that aren't declared in tc.h are declared here,
|
|
with the type/prototype that is used in the local extern-declaration of
|
|
their usage. */
|
|
|
|
#ifndef TC_CRIS
|
|
#define TC_CRIS
|
|
|
|
/* Multi-target support is always on. */
|
|
extern const char *cris_target_format (void);
|
|
#define TARGET_FORMAT cris_target_format ()
|
|
|
|
#define TARGET_ARCH bfd_arch_cris
|
|
|
|
extern unsigned int cris_mach (void);
|
|
#define TARGET_MACH (cris_mach ())
|
|
|
|
#define TARGET_BYTES_BIG_ENDIAN 0
|
|
|
|
extern const char *md_shortopts;
|
|
extern struct option md_longopts[];
|
|
extern size_t md_longopts_size;
|
|
|
|
extern const pseudo_typeS md_pseudo_table[];
|
|
|
|
#define tc_comment_chars cris_comment_chars
|
|
extern const char cris_comment_chars[];
|
|
extern const char line_comment_chars[];
|
|
extern const char line_separator_chars[];
|
|
extern const char EXP_CHARS[];
|
|
extern const char FLT_CHARS[];
|
|
|
|
/* This should be optional, since it is ignored as an escape (assumed to
|
|
be itself) if it is not recognized. */
|
|
#define ONLY_STANDARD_ESCAPES
|
|
|
|
/* Note that we do not define TC_EQUAL_IN_INSN, since its current use is
|
|
in the instruction rather than the operand, and thus does not come to
|
|
use for side-effect assignments such as "and.d [r0 = r1 + 42], r3". */
|
|
#define md_operand(x)
|
|
|
|
#define md_number_to_chars number_to_chars_littleendian
|
|
extern const struct relax_type md_cris_relax_table[];
|
|
#define TC_GENERIC_RELAX_TABLE md_cris_relax_table
|
|
|
|
long cris_relax_frag (segT, fragS *, long);
|
|
|
|
/* GAS only handles relaxations for pc-relative data targeting addresses
|
|
in the same segment, so we have to handle the rest on our own. */
|
|
#define md_relax_frag(SEG, FRAGP, STRETCH) \
|
|
((FRAGP)->fr_symbol != NULL \
|
|
&& S_GET_SEGMENT ((FRAGP)->fr_symbol) == (SEG) \
|
|
? relax_frag (SEG, FRAGP, STRETCH) \
|
|
: cris_relax_frag (SEG, FRAGP, STRETCH))
|
|
|
|
#define TC_FORCE_RELOCATION(FIX) md_cris_force_relocation (FIX)
|
|
extern int md_cris_force_relocation (struct fix *);
|
|
|
|
#define IS_CRIS_PIC_RELOC(RTYPE) \
|
|
((RTYPE) == BFD_RELOC_CRIS_16_GOT \
|
|
|| (RTYPE) == BFD_RELOC_CRIS_32_GOT \
|
|
|| (RTYPE) == BFD_RELOC_CRIS_16_GOTPLT \
|
|
|| (RTYPE) == BFD_RELOC_CRIS_32_GOTPLT \
|
|
|| (RTYPE) == BFD_RELOC_CRIS_32_GOTREL \
|
|
|| (RTYPE) == BFD_RELOC_CRIS_32_PLT_GOTREL \
|
|
|| (RTYPE) == BFD_RELOC_CRIS_32_PLT_PCREL)
|
|
|
|
/* Make sure we don't resolve fixups for which we want to emit dynamic
|
|
relocations. */
|
|
#define TC_FORCE_RELOCATION_LOCAL(FIX) \
|
|
(!(FIX)->fx_pcrel \
|
|
|| IS_CRIS_PIC_RELOC ((FIX)->fx_r_type) \
|
|
|| TC_FORCE_RELOCATION (FIX))
|
|
|
|
/* For some reloc types, don't adjust fixups by reducing to a section
|
|
symbol. */
|
|
#define tc_fix_adjustable(FIX) \
|
|
((FIX)->fx_r_type != BFD_RELOC_VTABLE_INHERIT \
|
|
&& (FIX)->fx_r_type != BFD_RELOC_VTABLE_ENTRY \
|
|
&& (! IS_CRIS_PIC_RELOC ((FIX)->fx_r_type) \
|
|
|| (FIX)->fx_r_type == BFD_RELOC_CRIS_32_GOTREL))
|
|
|
|
/* FIXME: This *should* be a redundant definition, as the
|
|
TC_FORCE_RELOCATION* definitions already told about the cases where
|
|
we *don't* want the symbol value calculated. Here we seem to answer
|
|
the "are you sure" question. It certainly has very little to do with
|
|
whether the symbol value is passed to md_apply_fix. */
|
|
#define MD_APPLY_SYM_VALUE(FIX) 0
|
|
|
|
/* When we have fixups against constant expressions, we get a GAS-specific
|
|
section symbol at no extra charge for obscure reasons in
|
|
adjust_reloc_syms. Since ELF outputs section symbols, it gladly
|
|
outputs this "*ABS*" symbol in every object. Avoid that.
|
|
Also, don't emit undefined symbols (that aren't used in relocations).
|
|
They pop up when tentatively parsing register names as symbols. */
|
|
#define tc_frob_symbol(symp, punt) \
|
|
do { \
|
|
if ((OUTPUT_FLAVOR == bfd_target_elf_flavour \
|
|
&& (symp) == section_symbol (absolute_section)) \
|
|
|| ! S_IS_DEFINED (symp)) \
|
|
(punt) = 1; \
|
|
} while (0)
|
|
|
|
#define LISTING_HEADER "GAS for CRIS"
|
|
|
|
#if 0
|
|
/* The testsuite does not let me define these, although they IMHO should
|
|
be preferred over the default. */
|
|
#define LISTING_WORD_SIZE 2
|
|
#define LISTING_LHS_WIDTH 4
|
|
#define LISTING_LHS_WIDTH_SECOND 4
|
|
#endif
|
|
|
|
/* END of declaration and definitions described in the "internals"
|
|
document. */
|
|
|
|
/* Do this, or we will never know what hit us when the
|
|
broken-word-fixes break. Do _not_ use WARN_SIGNED_OVERFLOW_WORD,
|
|
it is only for use with WORKING_DOT_WORD and warns about most stuff.
|
|
(still in 2.9.1). */
|
|
struct broken_word;
|
|
extern void tc_cris_check_adjusted_broken_word (offsetT,
|
|
struct broken_word *);
|
|
#define TC_CHECK_ADJUSTED_BROKEN_DOT_WORD(new_offset, brokw) \
|
|
tc_cris_check_adjusted_broken_word ((offsetT) (new_offset), brokw)
|
|
|
|
/* We don't want any implicit alignment, so we do nothing. */
|
|
#define TC_IMPLICIT_LCOMM_ALIGNMENT(SIZE, P2VAR) do { } while (0)
|
|
|
|
/* CRIS instructions, with operands and prefixes included, are a multiple
|
|
of two bytes long. */
|
|
#define DWARF2_LINE_MIN_INSN_LENGTH 2
|
|
|
|
/* Make port immune to unwanted difference in te-generic.h vs. te-linux.h. */
|
|
#define LOCAL_LABELS_DOLLAR 1
|
|
|
|
#endif /* TC_CRIS */
|
|
/*
|
|
* Local variables:
|
|
* eval: (c-set-style "gnu")
|
|
* indent-tabs-mode: t
|
|
* End:
|
|
*/
|