old-cross-binutils/gas/config/xtensa-istack.h
Bob Wilson e7da624184 * config/xtensa-istack.h (TInsn): Remove record_fix and sub_symbol
fields.
	* config/tc-xtensa.h (xtensa_frag_type): Remove slot_sub_symbols field.
	* config/tc-xtensa.c (md_apply_fix): Check for unexpected uses of
	subtracted symbols.
	(relaxation_requirements): Add pfinish_frag argument and use it to
	replace setting tinsn->record_fix fields.
	(xg_assemble_vliw_tokens): Adjust calls to relaxation_requirements
	and vinsn_to_insnbuf.  Remove references to record_fix and
	slot_sub_symbols fields.
	(xtensa_mark_narrow_branches): Delete unused code.
	(is_narrow_branch_guaranteed_in_range): Handle expr that is not just
	a symbol.
	(convert_frag_immed): Adjust vinsn_to_insnbuf call and do not set
	record_fix fields.
	(tinsn_immed_from_frag): Remove code for handling slot_sub_symbols.
	(vinsn_to_insnbuf): Change use of record_fixup argument, replacing use
	of the record_fix field.  Simplify error messages for unexpected
	symbolic operands.
	(set_expr_symbol_offset_diff): Delete.
2006-01-31 19:36:57 +00:00

97 lines
2.3 KiB
C

/* Declarations for stacks of tokenized Xtensa instructions.
Copyright (C) 2003, 2004 Free Software Foundation, Inc.
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 2, 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. */
#ifndef XTENSA_ISTACK_H
#define XTENSA_ISTACK_H
#include "xtensa-isa.h"
#define MAX_ISTACK 12
#define MAX_INSN_ARGS 10
enum itype_enum
{
ITYPE_INSN,
ITYPE_LITERAL,
ITYPE_LABEL
};
/* Literals have 1 token and no opcode.
Labels have 1 token and no opcode. */
typedef struct tinsn_struct
{
enum itype_enum insn_type;
xtensa_opcode opcode; /* Literals have an invalid opcode. */
bfd_boolean is_specific_opcode;
bfd_boolean keep_wide;
int ntok;
expressionS tok[MAX_INSN_ARGS];
unsigned linenum;
struct fixP *fixup;
/* Filled out by relaxation_requirements: */
enum xtensa_relax_statesE subtype;
int literal_space;
/* Filled out by vinsn_to_insnbuf: */
symbolS *symbol;
offsetT offset;
fragS *literal_frag;
} TInsn;
/* tinsn_stack: This is a stack of instructions to be placed. */
typedef struct tinsn_stack
{
int ninsn;
TInsn insn[MAX_ISTACK];
} IStack;
void istack_init (IStack *);
bfd_boolean istack_empty (IStack *);
bfd_boolean istack_full (IStack *);
TInsn *istack_top (IStack *);
void istack_push (IStack *, TInsn *);
TInsn *istack_push_space (IStack *);
void istack_pop (IStack *);
/* TInsn utilities. */
void tinsn_init (TInsn *);
expressionS *tinsn_get_tok (TInsn *, int);
/* vliw_insn: bundles of TInsns. */
typedef struct vliw_insn
{
xtensa_format format;
int num_slots;
unsigned int inside_bundle;
TInsn slots[MAX_SLOTS];
xtensa_insnbuf insnbuf;
xtensa_insnbuf slotbuf[MAX_SLOTS];
} vliw_insn;
#endif /* !XTENSA_ISTACK_H */