mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-27 03:51:15 +08:00
263462410c
(dot_value): Declare. * write.c (dot_value): New var. (fix_new_internal): Save dot_value as fx_dot_value. * expr.c (expr): Update dot_value.
217 lines
6.7 KiB
C
217 lines
6.7 KiB
C
/* write.h
|
|
Copyright 1987, 1992, 1993, 1994, 1995, 1996, 1997, 1999, 2000, 2001
|
|
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, 59 Temple Place - Suite 330, Boston, MA
|
|
02111-1307, USA. */
|
|
|
|
#ifndef __write_h__
|
|
#define __write_h__
|
|
|
|
#ifndef TC_I960
|
|
#ifdef hpux
|
|
#define EXEC_MACHINE_TYPE HP9000S200_ID
|
|
#endif
|
|
#endif /* TC_I960 */
|
|
|
|
#ifndef BFD_ASSEMBLER
|
|
|
|
#ifndef LOCAL_LABEL
|
|
#define LOCAL_LABEL(name) (name [0] == 'L' )
|
|
#endif
|
|
|
|
#define S_LOCAL_NAME(s) (LOCAL_LABEL (S_GET_NAME (s)))
|
|
|
|
#endif /* ! BFD_ASSEMBLER */
|
|
|
|
/* This is the name of a fake symbol which will never appear in the
|
|
assembler output. S_IS_LOCAL detects it because of the \001. */
|
|
#define FAKE_LABEL_NAME "L0\001"
|
|
|
|
#include "bit_fix.h"
|
|
|
|
/*
|
|
* FixSs may be built up in any order.
|
|
*/
|
|
|
|
struct fix
|
|
{
|
|
/* These small fields are grouped together for compactness of
|
|
this structure, and efficiency of access on some architectures. */
|
|
|
|
/* pc-relative offset adjust (only used by m68k) */
|
|
char fx_pcrel_adjust;
|
|
|
|
/* How many bytes are involved? */
|
|
unsigned char fx_size;
|
|
|
|
/* Is this a pc-relative relocation? */
|
|
unsigned fx_pcrel : 1;
|
|
|
|
/* Is this a relocation to a procedure linkage table entry? If so,
|
|
some of the reductions we try to apply are invalid. A better way
|
|
might be to represent PLT entries with different kinds of
|
|
symbols, and use normal relocations (with undefined symbols);
|
|
look into it for version 2.6. */
|
|
unsigned fx_plt : 1;
|
|
|
|
/* Is this value an immediate displacement? */
|
|
/* Only used on i960 and ns32k; merge it into TC_FIX_TYPE sometime. */
|
|
unsigned fx_im_disp : 2;
|
|
|
|
/* A bit for the CPU specific code.
|
|
This probably can be folded into tc_fix_data, below. */
|
|
unsigned fx_tcbit : 1;
|
|
|
|
/* Has this relocation already been applied? */
|
|
unsigned fx_done : 1;
|
|
|
|
/* Suppress overflow complaints on large addends. This is used
|
|
in the PowerPC ELF config to allow large addends on the
|
|
BFD_RELOC_{LO16,HI16,HI16_S} relocations.
|
|
|
|
@@ Can this be determined from BFD? */
|
|
unsigned fx_no_overflow : 1;
|
|
|
|
/* The value is signed when checking for overflow. */
|
|
unsigned fx_signed : 1;
|
|
|
|
/* Which frag does this fix apply to? */
|
|
fragS *fx_frag;
|
|
|
|
/* Where is the first byte to fix up? */
|
|
long fx_where;
|
|
|
|
/* NULL or Symbol whose value we add in. */
|
|
symbolS *fx_addsy;
|
|
|
|
/* NULL or Symbol whose value we subtract. */
|
|
symbolS *fx_subsy;
|
|
|
|
/* Absolute number we add in. */
|
|
valueT fx_offset;
|
|
|
|
/* The value of dot when the fixup expression was parsed. */
|
|
addressT fx_dot_value;
|
|
|
|
/* Next fixS in linked list, or NULL. */
|
|
struct fix *fx_next;
|
|
|
|
/* If NULL, no bitfix's to do. */
|
|
/* Only i960-coff and ns32k use this, and i960-coff stores an
|
|
integer. This can probably be folded into tc_fix_data, below.
|
|
@@ Alpha also uses it, but only to disable certain relocation
|
|
processing. */
|
|
bit_fixS *fx_bit_fixP;
|
|
|
|
#ifdef BFD_ASSEMBLER
|
|
bfd_reloc_code_real_type fx_r_type;
|
|
#else
|
|
#ifdef NEED_FX_R_TYPE
|
|
/* Hack for machines where the type of reloc can't be
|
|
worked out by looking at how big it is. */
|
|
int fx_r_type;
|
|
#endif
|
|
#endif
|
|
|
|
/* This field is sort of misnamed. It appears to be a sort of random
|
|
scratch field, for use by the back ends. The main gas code doesn't
|
|
do anything but initialize it to zero. The use of it does need to
|
|
be coordinated between the cpu and format files, though. E.g., some
|
|
coff targets pass the `addend' field from the cpu file via this
|
|
field. I don't know why the `fx_offset' field above can't be used
|
|
for that; investigate later and document. KR */
|
|
valueT fx_addnumber;
|
|
|
|
/* The location of the instruction which created the reloc, used
|
|
in error messages. */
|
|
char *fx_file;
|
|
unsigned fx_line;
|
|
|
|
#ifdef USING_CGEN
|
|
struct {
|
|
/* CGEN_INSN entry for this instruction. */
|
|
const struct cgen_insn *insn;
|
|
/* Target specific data, usually reloc number. */
|
|
int opinfo;
|
|
} fx_cgen;
|
|
#endif
|
|
|
|
#ifdef TC_FIX_TYPE
|
|
/* Location where a backend can attach additional data
|
|
needed to perform fixups. */
|
|
TC_FIX_TYPE tc_fix_data;
|
|
#endif
|
|
};
|
|
|
|
typedef struct fix fixS;
|
|
|
|
extern int finalize_syms;
|
|
extern symbolS *abs_section_sym;
|
|
extern addressT dot_value;
|
|
|
|
#ifndef BFD_ASSEMBLER
|
|
extern char *next_object_file_charP;
|
|
|
|
#ifndef MANY_SEGMENTS
|
|
COMMON fixS *text_fix_root, *text_fix_tail; /* Chains fixSs. */
|
|
COMMON fixS *data_fix_root, *data_fix_tail; /* Chains fixSs. */
|
|
COMMON fixS *bss_fix_root, *bss_fix_tail; /* Chains fixSs. */
|
|
extern struct frag *text_last_frag; /* Last frag in segment. */
|
|
extern struct frag *data_last_frag; /* Last frag in segment. */
|
|
#endif
|
|
COMMON fixS **seg_fix_rootP, **seg_fix_tailP; /* -> one of above. */
|
|
#endif
|
|
|
|
extern long string_byte_count;
|
|
extern int section_alignment[];
|
|
|
|
extern bit_fixS *bit_fix_new
|
|
PARAMS ((int size, int offset, long base_type, long base_adj, long min,
|
|
long max, long add));
|
|
extern void append PARAMS ((char **charPP, char *fromP, unsigned long length));
|
|
extern void record_alignment PARAMS ((segT seg, int align));
|
|
extern int get_recorded_alignment PARAMS ((segT seg));
|
|
extern void subsegs_finish PARAMS ((void));
|
|
extern void write_object_file PARAMS ((void));
|
|
extern long relax_frag PARAMS ((segT, fragS *, long));
|
|
extern int relax_segment
|
|
PARAMS ((struct frag * seg_frag_root, segT seg_type));
|
|
|
|
extern void number_to_chars_littleendian PARAMS ((char *, valueT, int));
|
|
extern void number_to_chars_bigendian PARAMS ((char *, valueT, int));
|
|
|
|
#ifdef BFD_ASSEMBLER
|
|
extern fixS *fix_new
|
|
PARAMS ((fragS * frag, int where, int size, symbolS * add_symbol,
|
|
offsetT offset, int pcrel, bfd_reloc_code_real_type r_type));
|
|
extern fixS *fix_new_exp
|
|
PARAMS ((fragS * frag, int where, int size, expressionS *exp, int pcrel,
|
|
bfd_reloc_code_real_type r_type));
|
|
#else
|
|
extern fixS *fix_new
|
|
PARAMS ((fragS * frag, int where, int size, symbolS * add_symbol,
|
|
offsetT offset, int pcrel, int r_type));
|
|
extern fixS *fix_new_exp
|
|
PARAMS ((fragS * frag, int where, int size, expressionS *exp, int pcrel,
|
|
int r_type));
|
|
#endif
|
|
|
|
extern void write_print_statistics PARAMS ((FILE *));
|
|
|
|
#endif /* __write_h__ */
|