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* configure: Regenerate. 

* configure.in (arm-*-oabi):  New.
        (thumb-*-oabi):  New.
        * config/tc-arm.c (target_oabi):  Declare.
        (md_apply_fix3): Support REL relocs.
        (md_parse_option):  Handle -oabi.
        (elf32_arm_target_format):  New routine.
        (md_longopts):  Add OPTION_OABI.
        * config/tc-arm.h:  Redefine TARGET_FORMAT.
gdb-4_18-branch
Catherine Moore 28 years ago
parent
7f7cef942c
commit
9ac8e451f6
5 changed files with 172 additions and 41 deletions
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  1. 13
      gas/ChangeLog
  2. 177
      gas/config/tc-arm.c
  3. 20
      gas/config/tc-arm.h
  4. 2
      gas/configure
  5. 1
      gas/configure.in

13
gas/ChangeLog
View File

@ -1,3 +1,16 @@
Mon Feb 1 12:24:58 1999 Catherine Moore <clm@cygnus.com>
* configure: Regenerate.
* configure.in (arm-*-oabi): New.
(thumb-*-oabi): New.
* config/tc-arm.c (target_oabi): Declare.
(md_apply_fix3): Support REL relocs.
(md_parse_option): Handle -oabi.
(elf32_arm_target_format): New routine.
(md_longopts): Add OPTION_OABI.
* config/tc-arm.h: Redefine TARGET_FORMAT.
1999-01-28 Nick Clifton <nickc@cygnus.com>
* write.c (write_relocs): Handle out or range error.

177
gas/config/tc-arm.c
View File

@ -1,5 +1,5 @@
/* tc-arm.c -- Assemble for the ARM
Copyright (C) 1994, 95, 96, 97, 1998 Free Software Foundation, Inc.
Copyright (C) 1994, 95, 96, 97, 98, 1999 Free Software Foundation, Inc.
Contributed by Richard Earnshaw (rwe@pegasus.esprit.ec.org)
Modified by David Taylor (dtaylor@armltd.co.uk)
@ -90,6 +90,7 @@
#endif
static unsigned long cpu_variant = CPU_DEFAULT | FPU_DEFAULT;
static int target_oabi = 0;
#if defined OBJ_COFF || defined OBJ_ELF
/* Flags stored in private area of BFD structure */
@ -4980,13 +4981,11 @@ md_section_align (segment, size)
segT segment;
valueT size;
{
/* start-sanitize-armelf */
#ifdef OBJ_ELF
/* Don't align the dwarf2 debug sections */
if (!strncmp(segment->name,".debug",5))
return size;
#endif
/* end-sanitize-armelf */
/* Round all sects to multiple of 4 */
return (size + 3) & ~3;
}
@ -5239,8 +5238,20 @@ md_apply_fix3 (fixP, val, seg)
break;
case BFD_RELOC_ARM_PCREL_BRANCH:
#ifdef OBJ_ELF
if (target_oabi)
value = (value >> 2) & 0x00ffffff;
else
value = fixP->fx_offset;
#else
value = (value >> 2) & 0x00ffffff;
#endif
newval = md_chars_to_number (buf, INSN_SIZE);
#ifdef OBJ_ELF
if (!target_oabi)
newval = (newval & 0xff000000);
#endif
newval = (newval & 0xff000000);
value = (value + (newval & 0x00ffffff)) & 0x00ffffff;
newval = value | (newval & 0xff000000);
md_number_to_chars (buf, newval, INSN_SIZE);
@ -5282,7 +5293,7 @@ md_apply_fix3 (fixP, val, seg)
{
offsetT newval2;
addressT diff;
newval = md_chars_to_number (buf, THUMB_SIZE);
newval2 = md_chars_to_number (buf + THUMB_SIZE, THUMB_SIZE);
diff = ((newval & 0x7ff) << 12) | ((newval2 & 0x7ff) << 1);
@ -5303,17 +5314,41 @@ md_apply_fix3 (fixP, val, seg)
case BFD_RELOC_8:
if (fixP->fx_done || fixP->fx_pcrel)
md_number_to_chars (buf, value, 1);
#ifdef OBJ_ELF
else if (!target_oabi)
{
value = fixP->fx_offset;
md_number_to_chars (buf, value, 1);
}
#endif
break;
case BFD_RELOC_16:
if (fixP->fx_done || fixP->fx_pcrel)
md_number_to_chars (buf, value, 2);
#ifdef OBJ_ELF
else if (!target_oabi)
{
value = fixP->fx_offset;
md_number_to_chars (buf, value, 2);
}
#endif
break;
case BFD_RELOC_RVA:
case BFD_RELOC_32:
#ifndef OBJ_ELF
if (fixP->fx_done || fixP->fx_pcrel)
md_number_to_chars (buf, value, 4);
#else
if (!target_oabi)
{
value = fixP->fx_offset;
md_number_to_chars (buf, value, 4);
}
else if (fixP->fx_done || fixP->fx_pcrel)
md_number_to_chars (buf, value, 4);
#endif
break;
case BFD_RELOC_ARM_CP_OFF_IMM:
@ -5476,6 +5511,11 @@ md_apply_fix3 (fixP, val, seg)
md_number_to_chars (buf, newval , THUMB_SIZE);
break;
case BFD_RELOC_VTABLE_INHERIT:
case BFD_RELOC_VTABLE_ENTRY:
fixP->fx_done = 0;
return 1;
case BFD_RELOC_NONE:
default:
as_bad_where (fixP->fx_file, fixP->fx_line,
@ -5538,6 +5578,8 @@ tc_gen_reloc (section, fixp)
case BFD_RELOC_THUMB_PCREL_BRANCH9:
case BFD_RELOC_THUMB_PCREL_BRANCH12:
case BFD_RELOC_THUMB_PCREL_BRANCH23:
case BFD_RELOC_VTABLE_ENTRY:
case BFD_RELOC_VTABLE_INHERIT:
code = fixp->fx_r_type;
break;
@ -5899,8 +5941,9 @@ _("Warning: Use of the 'nv' conditional is deprecated\n"));
* -m[arm]1 Currently not supported.
* -m[arm]2, -m[arm]250 Arm 2 and Arm 250 processor
* -m[arm]3 Arm 3 processor
* -m[arm]6, Arm 6 processors
* -m[arm]7[t][[d]m] Arm 7 processors
* -m[arm]6[xx], Arm 6 processors
* -m[arm]7[xx][t][[d]m] Arm 7 processors
* -mstrongarm[110] Arm 8 processors
* -mall All (except the ARM1)
* FP variants:
* -mfpa10, -mfpa11 FPA10 and 11 co-processor instructions
@ -5925,6 +5968,10 @@ struct option md_longopts[] =
{"EB", no_argument, NULL, OPTION_EB},
#define OPTION_EL (OPTION_MD_BASE + 1)
{"EL", no_argument, NULL, OPTION_EL},
#ifdef OBJ_ELF
#define OPTION_OABI (OPTION_MD_BASE +2)
{"oabi", no_argument, NULL, OPTION_OABI},
#endif
#endif
{NULL, no_argument, NULL, 0}
};
@ -5967,6 +6014,11 @@ md_parse_option (c, arg)
cpu_variant &= ~FPU_ALL;
break;
case 'o':
if (!strcmp (str, "oabi"))
target_oabi = true;
break;
case 't':
/* Limit assembler to generating only Thumb instructions: */
if (! strcmp (str, "thumb"))
@ -6091,15 +6143,33 @@ md_parse_option (c, arg)
goto bad;
break;
case '6':
if (! strcmp (str, "6"))
cpu_variant = (cpu_variant & ~ARM_ANY) | ARM_6;
else
goto bad;
switch (strtol (str, NULL, 10))
{
case 6:
case 60:
case 600:
case 610:
case 620:
cpu_variant = (cpu_variant & ~ARM_ANY) | ARM_6;
break;
default:
goto bad;
}
break;
case '7':
str++; /* eat the '7' */
switch (strtol (str, & str, 10)) /* Eat the processor name */
{
case 7:
case 70:
case 700:
case 710:
case 7100:
case 7500:
break;
default:
goto bad;
}
cpu_variant = (cpu_variant & ~ARM_ANY) | ARM_7;
for (; *str; str++)
{
@ -6316,8 +6386,8 @@ arm_frob_label (sym)
void
arm_adjust_symtab ()
{
symbolS * sym;
#ifdef OBJ_COFF
symbolS * sym;
for (sym = symbol_rootP; sym != NULL; sym = symbol_next (sym))
{
@ -6354,39 +6424,44 @@ arm_adjust_symtab ()
if (ARM_IS_INTERWORK (sym))
coffsymbol(sym->bsym)->native->u.syment.n_flags = 0xFF;
}
#endif /* OBJ_COFF */
#endif
}
#ifdef OBJ_ELF
void
armelf_adjust_symtab ()
{
symbolS * sym;
elf_symbol_type *elf_sym;
char bind;
for (sym = symbol_rootP; sym != NULL; sym = symbol_next (sym))
{
if (ARM_IS_THUMB (sym) && (THUMB_IS_FUNC (sym)))
{
elf_symbol_type * elf_sym;
unsigned char bind;
if (ARM_IS_THUMB (sym))
{
if (THUMB_IS_FUNC (sym))
{
elf_sym = elf_symbol(sym->bsym);
bind = ELF_ST_BIND(elf_sym);
elf_sym->internal_elf_sym.st_info = ELF_ST_INFO(bind, STT_ARM_TFUNC);
}
elf_sym = elf_symbol (sym->bsym);
bind = ELF_ST_BIND (elf_sym->internal_elf_sym.st_info);
elf_sym->internal_elf_sym.st_info = ELF_ST_INFO (bind, STT_ARM_TFUNC);
}
}
}
}
}
#endif
#ifdef OBJ_ELF
void
armelf_frob_symbol (symp, puntp)
symbolS * symp;
int * puntp;
symbolS *symp;
int *puntp;
{
elf_frob_symbol (symp, puntp);
}
#endif /* OBJ_ELF */
}
#endif
int
arm_data_in_code ()
{
@ -6414,7 +6489,6 @@ arm_canonicalize_symbol_name (name)
return name;
}
/* start-sanitize-armelf */
#ifdef OBJ_ELF
/* Relocations against Thumb function names must be left unadjusted,
so that the linker can use this information to correctly set the
@ -6433,17 +6507,44 @@ boolean
arm_fix_adjustable (fixP)
fixS *fixP;
{
if (fixP->fx_addsy == NULL)
return 1;
/* Prevent all adjustments to global symbols. */
if (S_IS_EXTERN (fixP->fx_addsy))
return 0;
if (S_IS_WEAK (fixP->fx_addsy))
return 0;
if (THUMB_IS_FUNC (fixP->fx_addsy)
&& fixP->fx_subsy == NULL)
return 0;
/* We need the symbol name for the VTABLE entries */
if (fixP->fx_r_type == BFD_RELOC_VTABLE_INHERIT
|| fixP->fx_r_type == BFD_RELOC_VTABLE_ENTRY)
return 0;
return 1;
}
#endif /* OBJ_ELF */
/* end-sanitize-armelf */
#ifdef OBJ_ELF
int
elf32_arm_force_relocation (fixp)
struct fix *fixp;
{
if (fixp->fx_r_type == BFD_RELOC_VTABLE_INHERIT
|| fixp->fx_r_type == BFD_RELOC_VTABLE_ENTRY)
return 1;
if (fixp->fx_r_type == BFD_RELOC_ARM_PCREL_BRANCH)
return 1;
return 0;
}
#endif
boolean
arm_validate_fix (fixP)
@ -6465,3 +6566,17 @@ arm_validate_fix (fixP)
return false;
}
const char *
elf32_arm_target_format ()
{
if (target_big_endian)
if (target_oabi)
return "elf32-bigarm-oabi";
else
return "elf32-bigarm";
else
if (target_oabi)
return "elf32-littlearm-oabi";
else
return "elf32-littlearm";
}

20
gas/config/tc-arm.h
View File

@ -1,5 +1,5 @@
/* This file is tc-arm.h
Copyright (C) 1994, 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
Contributed by Richard Earnshaw (rwe@pegasus.esprit.ec.org)
Modified by David Taylor (dtaylor@armltd.co.uk)
@ -72,14 +72,18 @@
# endif
#endif
/* start-sanitize-armelf */
#ifdef OBJ_ELF
#define TC_FORCE_RELOCATION(fixp) elf32_arm_force_relocation(fixp)
extern int elf32_arm_force_relocation PARAMS ((struct fix *));
#endif
#ifdef OBJ_ELF
extern boolean arm_validate_fix ();
#define TC_VALIDATE_FIX(fixP,segType,Label) if (arm_validate_fix (fixP)) add_symbolP = fixP->fx_addsy
#define ARM_BI_ENDIAN
#define TARGET_FORMAT (target_big_endian ? "elf32-bigarm" : "elf32-littlearm")
#define TARGET_FORMAT elf32_arm_target_format()
extern const char *elf32_arm_target_format PARAMS ((void));
#endif
/* end-sanitize-armelf */
#define md_convert_frag(b,s,f) {as_fatal (_("arm convert_frag\n"));}
@ -95,15 +99,11 @@ extern void arm_frob_label PARAMS ((struct symbol *));
deliberately not been updated to mark assembler created stabs
symbols as Thumb. */
/* start-sanitize-armelf */
#ifdef OBJ_ELF
#define obj_fix_adjustable(fixP) arm_fix_adjustable(fixP)
#else
/* end-sanitize-armelf */
#define obj_fix_adjustable(fixP) 0
/* start-sanitize-armelf */
#endif
/* end-sanitize-armelf */
/* We need to keep some local information on symbols. */
@ -151,10 +151,10 @@ char *arm_canonicalize_symbol_name PARAMS ((char *));
/* Finish processing the entire symbol table: */
#ifdef OBJ_ELF
#define obj_adjust_symtab armelf_adjust_symtab
#define obj_adjust_symtab() armelf_adjust_symtab ()
extern void armelf_adjust_symtab PARAMS ((void));
#else
#define obj_adjust_symtab arm_adjust_symtab
#define obj_adjust_symtab() arm_adjust_symtab ()
extern void arm_adjust_symtab PARAMS ((void));
#endif

2
gas/configure
View File

@ -1644,6 +1644,8 @@ for this_target in $target $canon_targets ; do
arm-*-aout) fmt=aout ;;
arm-*-coff | thumb-*-coff) fmt=coff ;;
arm-*-elf | thumb-*-elf) fmt=elf ;;
arm-*-oabi | thumb-*-oabi) fmt=elf ;;
arm-*-linux* | armv*-*-linux-gnu) fmt=elf em=linux ;;
arm-*-riscix*) fmt=aout ;;
arm-*-pe | thumb-*-pe) fmt=coff em=pe ;;

1
gas/configure.in
View File

@ -137,6 +137,7 @@ changequote([,])dnl
arm-*-aout) fmt=aout ;;
arm-*-coff | thumb-*-coff) fmt=coff ;;
arm-*-elf | thumb-*-elf) fmt=elf ;;
arm-*-oabi | thumb-*-oabi) fmt=elf ;;
arm-*-riscix*) fmt=aout ;;
arm-*-pe | thumb-*-pe) fmt=coff em=pe ;;

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