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Arm specific code changed to conform to BFD coding conventions.

This commit is contained in:
Nick Clifton 1998-04-21 17:07:25 +00:00
parent 5de921b816
commit 7d6d10f9b3
6 changed files with 432 additions and 206 deletions
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18
bfd/ChangeLog
View File

@ -1,3 +1,21 @@
Tue Apr 21 10:00:12 1998 Nick Clifton <nickc@cygnus.com>
* libcoff.h: Add extra parameter to
bfd_coff_link_output_has_begun overrideable function.
* cofflink.c: Pass extra parameter to
bfd_coff_link_output_has_begun function.
* bfd-in.h: Add prototypes for exported ARM interworking
functions.
* peicode.h: ARM specific code reorganised to conform to BFD
coding conventions.
* coffcode.h: ARM specific code reorganised to conform to BFD
coding conventions.
* coff-arm.c: Code reorganised to conform to the BFD coding
conventions. Global variables have been moved into an ARM
specific hash table structure and a new function:
bfd_arm_get_bfd_for_interworking() has been created which is
called from the linker scripts.
Tue Apr 21 00:11:51 1998 Richard Henderson <rth@cygnus.com>
* archive.c (_bfd_generic_read_ar_hdr_mag): Simplify end-of-name test.

29
bfd/bfd-in.h
View File

@ -1,5 +1,6 @@
/* Main header file for the bfd library -- portable access to object files.
Copyright 1990, 91, 92, 93, 94, 95, 1996 Free Software Foundation, Inc.
Copyright 1990, 91, 92, 93, 94, 95, 96, 97, 1998
Free Software Foundation, Inc.
Contributed by Cygnus Support.
** NOTE: bfd.h and bfd-in2.h are GENERATED files. Don't change them;
@ -49,7 +50,6 @@ extern "C" {
#endif
#include "ansidecl.h"
#include "obstack.h"
/* These two lines get substitutions done by commands in Makefile.in. */
#define BFD_VERSION "@VERSION@"
@ -310,6 +310,7 @@ typedef struct sec *sec_ptr;
#define bfd_section_name(bfd, ptr) ((ptr)->name)
#define bfd_section_size(bfd, ptr) (bfd_get_section_size_before_reloc(ptr))
#define bfd_section_vma(bfd, ptr) ((ptr)->vma)
#define bfd_section_lma(bfd, ptr) ((ptr)->lma)
#define bfd_section_alignment(bfd, ptr) ((ptr)->alignment_power)
#define bfd_get_section_flags(bfd, ptr) ((ptr)->flags + 0)
#define bfd_get_section_userdata(bfd, ptr) ((ptr)->userdata)
@ -380,8 +381,9 @@ struct bfd_hash_table
struct bfd_hash_entry *(*newfunc) PARAMS ((struct bfd_hash_entry *,
struct bfd_hash_table *,
const char *));
/* An obstack for this hash table. */
struct obstack memory;
/* An objalloc for this hash table. This is a struct objalloc *,
but we use PTR to avoid requiring the inclusion of objalloc.h. */
PTR memory;
};
/* Initialize a hash table. */
@ -539,6 +541,7 @@ struct ecoff_extr;
struct symbol_cache_entry;
struct bfd_link_info;
struct bfd_link_hash_entry;
struct bfd_elf_version_tree;
#endif
extern bfd_vma bfd_ecoff_get_gp_value PARAMS ((bfd * abfd));
extern boolean bfd_ecoff_set_gp_value PARAMS ((bfd *abfd, bfd_vma gp_value));
@ -606,10 +609,12 @@ extern struct bfd_link_needed_list *bfd_elf_get_needed_list
PARAMS ((bfd *, struct bfd_link_info *));
extern boolean bfd_elf32_size_dynamic_sections
PARAMS ((bfd *, const char *, const char *, boolean, const char *,
const char *, struct bfd_link_info *, struct sec **));
const char * const *, struct bfd_link_info *, struct sec **,
struct bfd_elf_version_tree *));
extern boolean bfd_elf64_size_dynamic_sections
PARAMS ((bfd *, const char *, const char *, boolean, const char *,
const char *, struct bfd_link_info *, struct sec **));
const char * const *, struct bfd_link_info *, struct sec **,
struct bfd_elf_version_tree *));
extern void bfd_elf_set_dt_needed_name PARAMS ((bfd *, const char *));
extern const char *bfd_elf_get_dt_soname PARAMS ((bfd *));
@ -629,6 +634,8 @@ extern boolean bfd_i386linux_size_dynamic_sections
PARAMS ((bfd *, struct bfd_link_info *));
extern boolean bfd_m68klinux_size_dynamic_sections
PARAMS ((bfd *, struct bfd_link_info *));
extern boolean bfd_sparclinux_size_dynamic_sections
PARAMS ((bfd *, struct bfd_link_info *));
/* mmap hacks */
@ -685,4 +692,14 @@ extern boolean bfd_coff_get_syment
extern boolean bfd_coff_get_auxent
PARAMS ((bfd *, struct symbol_cache_entry *, int, union internal_auxent *));
/* ARM Interworking support. Called from linker. */
extern boolean bfd_arm_allocate_interworking_sections
PARAMS ((struct bfd_link_info *));
extern boolean bfd_arm_process_before_allocation
PARAMS ((bfd *, struct bfd_link_info *));
extern boolean bfd_arm_get_bfd_for_interworking
PARAMS ((bfd *, struct bfd_link_info *));
/* And more from the source. */

454
bfd/coff-arm.c
View File

@ -33,6 +33,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "libcoff.h"
/* Macros for manipulation the bits in the flags field of the coff data
structure. */
#define APCS_26_FLAG( abfd ) (coff_data (abfd)->flags & F_APCS_26)
#define APCS_FLOAT_FLAG( abfd ) (coff_data (abfd)->flags & F_APCS_FLOAT)
#define PIC_FLAG( abfd ) (coff_data (abfd)->flags & F_PIC)
@ -366,15 +368,17 @@ static reloc_howto_type aoutarm_std_reloc_howto[] =
0x07ff07ff,
PCRELOFFSET),
};
#ifdef COFF_WITH_PE
/* Return true if this relocation should
appear in the output .reloc section. */
static boolean in_reloc_p (abfd, howto)
static boolean
in_reloc_p (abfd, howto)
bfd * abfd;
reloc_howto_type *howto;
reloc_howto_type * howto;
{
return !howto->pc_relative && howto->type != 11;
return !howto->pc_relative && howto->type != ARM_RVA32;
}
#endif
@ -689,8 +693,8 @@ coff_thumb_pcrel_9 (abfd, reloc_entry, symbol, data, input_section,
static CONST struct reloc_howto_struct *
arm_reloc_type_lookup(abfd,code)
bfd *abfd;
coff_arm_reloc_type_lookup (abfd, code)
bfd * abfd;
bfd_reloc_code_real_type code;
{
#define ASTD(i,j) case i: return &aoutarm_std_reloc_howto[j]
@ -720,9 +724,6 @@ arm_reloc_type_lookup(abfd,code)
}
}
#define coff_bfd_reloc_type_lookup arm_reloc_type_lookup
#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (2)
#define COFF_PAGE_SIZE 0x1000
/* Turn a howto into a reloc nunmber */
@ -731,29 +732,54 @@ arm_reloc_type_lookup(abfd,code)
#define BADMAG(x) ARMBADMAG(x)
#define ARM 1 /* Customize coffcode.h */
/* The set of global variables that mark the total size of each kind
of glue required, plus a BFD to hang the glue sections onto.
Note: These variable should not be made static, since in a *-pe
build there are two versions of this file compiled, one for pe
objects and one for pei objects, and they want to share these
variables. */
#if defined COFF_IMAGE_WITH_PE
extern long int global_thumb_glue_size;
#else
long int global_thumb_glue_size = 0;
#endif
/* Extend the coff_link_hash_table structure with a few ARM specific fields.
This allows us to store global data here without actually creating any
global variables, which is a no-no in the BFD world. */
struct coff_arm_link_hash_table
{
/* The original coff_link_hash_table structure. MUST be first field. */
struct coff_link_hash_table root;
/* The size in bytes of the section containg the Thumb-to-ARM glue. */
long int thumb_glue_size;
/* The size in bytes of the section containg the ARM-to-Thumb glue. */
long int arm_glue_size;
#if defined COFF_IMAGE_WITH_PE
extern long int global_arm_glue_size;
#else
long int global_arm_glue_size = 0;
#endif
/* An arbitary input BFD chosen to hold the glue sections. */
bfd * bfd_of_glue_owner;
};
#if defined COFF_IMAGE_WITH_PE
extern bfd * bfd_of_glue_owner;
#else
bfd * bfd_of_glue_owner = NULL;
#endif
/* Get the ARM coff linker hash table from a link_info structure. */
#define coff_arm_hash_table(info) \
((struct coff_arm_link_hash_table *) ((info)->hash))
/* Create an ARM coff linker hash table. */
static struct bfd_link_hash_table *
coff_arm_link_hash_table_create (abfd)
bfd * abfd;
{
struct coff_arm_link_hash_table * ret;
ret = ((struct coff_arm_link_hash_table *)
bfd_alloc (abfd, sizeof (struct coff_arm_link_hash_table)));
if (ret == (struct coff_arm_link_hash_table *) NULL)
return NULL;
if (! _bfd_coff_link_hash_table_init
(& ret->root, abfd, _bfd_coff_link_hash_newfunc))
{
bfd_release (abfd, ret);
return (struct bfd_link_hash_table *) NULL;
}
ret->thumb_glue_size = 0;
ret->arm_glue_size = 0;
ret->bfd_of_glue_owner = NULL;
return & ret->root.root;
}
/* some typedefs for holding instructions */
typedef unsigned long int insn32;
@ -804,7 +830,7 @@ insert_thumb_branch (br_insn, rel_off)
rel_off >>= 1; /* half word aligned address */
low_bits = rel_off & 0x000007FF; /* the bottom 11 bits */
high_bits = ( rel_off >> 11 ) & 0x000007FF; /* the top 11 bits */
high_bits = (rel_off >> 11) & 0x000007FF; /* the top 11 bits */
if ((br_insn & LOW_HI_ORDER) == LOW_HI_ORDER)
br_insn = LOW_HI_ORDER | (low_bits << 16) | high_bits;
@ -825,8 +851,8 @@ find_thumb_glue (info, name, input_bfd)
char * name;
bfd * input_bfd;
{
char * tmp_name = 0;
struct coff_link_hash_entry * myh = 0;
char * tmp_name;
struct coff_link_hash_entry * myh;
tmp_name = ((char *)
bfd_malloc (strlen (name) + strlen (THUMB2ARM_GLUE_ENTRY_NAME)));
@ -835,14 +861,12 @@ find_thumb_glue (info, name, input_bfd)
sprintf (tmp_name, THUMB2ARM_GLUE_ENTRY_NAME, name);
myh = coff_link_hash_lookup (coff_hash_table (info),
tmp_name,
false, false, true);
myh = coff_link_hash_lookup
(coff_hash_table (info), tmp_name, false, false, true);
if (myh == NULL)
{
_bfd_error_handler ("%s: unable to find THUMB glue '%s' for `%s'",
bfd_get_filename (input_bfd), tmp_name, name);
}
_bfd_error_handler ("%s: unable to find THUMB glue '%s' for `%s'",
bfd_get_filename (input_bfd), tmp_name, name);
free (tmp_name);
@ -855,8 +879,8 @@ find_arm_glue (info, name, input_bfd)
char * name;
bfd * input_bfd;
{
char *tmp_name = 0;
struct coff_link_hash_entry *myh = 0;
char * tmp_name;
struct coff_link_hash_entry * myh;
tmp_name = ((char *)
bfd_malloc (strlen (name) + strlen (ARM2THUMB_GLUE_ENTRY_NAME)));
@ -865,15 +889,12 @@ find_arm_glue (info, name, input_bfd)
sprintf (tmp_name, ARM2THUMB_GLUE_ENTRY_NAME, name);
myh = coff_link_hash_lookup (coff_hash_table (info),
tmp_name,
false, false, true);
myh = coff_link_hash_lookup
(coff_hash_table (info), tmp_name, false, false, true);
if (myh == NULL)
{
_bfd_error_handler ("%s: unable to find ARM glue '%s' for `%s'",
bfd_get_filename (input_bfd), tmp_name, name);
}
_bfd_error_handler ("%s: unable to find ARM glue '%s' for `%s'",
bfd_get_filename (input_bfd), tmp_name, name);
free (tmp_name);
@ -898,8 +919,8 @@ find_arm_glue (info, name, input_bfd)
#define ARM2THUMB_GLUE_SIZE 12
static const insn32
a2t1_ldr_insn = 0xe59fc000,
a2t2_bx_r12_insn = 0xe12fff1c,
a2t1_ldr_insn = 0xe59fc000,
a2t2_bx_r12_insn = 0xe12fff1c,
a2t3_func_addr_insn = 0x00000001;
/*
@ -1094,22 +1115,29 @@ coff_arm_relocate_section (output_bfd, info, input_bfd, input_section,
|| h->class == C_THUMBEXTFUNC)
{
/* Arm code calling a Thumb function */
unsigned long int tmp;
long int my_offset;
asection * s = 0;
long int ret_offset;
struct coff_link_hash_entry * myh;
unsigned long int tmp;
long int my_offset;
asection * s;
long int ret_offset;
struct coff_link_hash_entry * myh;
struct coff_arm_link_hash_table * globals;
myh = find_arm_glue (info, name, input_bfd);
if (myh == NULL)
return false;
my_offset = myh->root.u.def.value;
globals = coff_arm_hash_table (info);
s = bfd_get_section_by_name (bfd_of_glue_owner,
BFD_ASSERT (globals != NULL);
BFD_ASSERT (globals->bfd_of_glue_owner != NULL);
my_offset = myh->root.u.def.value;
s = bfd_get_section_by_name (globals->bfd_of_glue_owner,
ARM2THUMB_GLUE_SECTION_NAME);
BFD_ASSERT (s != NULL);
BFD_ASSERT (s->contents != NULL);
BFD_ASSERT (s->output_section != NULL);
if ((my_offset & 0x01) == 0x01)
{
@ -1128,20 +1156,24 @@ coff_arm_relocate_section (output_bfd, info, input_bfd, input_section,
--my_offset;
myh->root.u.def.value = my_offset;
bfd_put_32 (output_bfd, a2t1_ldr_insn, s->contents + my_offset);
bfd_put_32 (output_bfd, a2t1_ldr_insn,
s->contents + my_offset);
bfd_put_32 (output_bfd, a2t2_bx_r12_insn, s->contents + my_offset + 4);
bfd_put_32 (output_bfd, a2t2_bx_r12_insn,
s->contents + my_offset + 4);
/* It's a thumb address. Add the low order bit. */
bfd_put_32 (output_bfd, h_val | a2t3_func_addr_insn, s->contents + my_offset + 8);
bfd_put_32 (output_bfd, h_val | a2t3_func_addr_insn,
s->contents + my_offset + 8);
}
BFD_ASSERT (my_offset <= global_arm_glue_size);
BFD_ASSERT (my_offset <= globals->arm_glue_size);
tmp = bfd_get_32 (input_bfd, contents + rel->r_vaddr - input_section->vma);
tmp = bfd_get_32 (input_bfd, contents + rel->r_vaddr
- input_section->vma);
tmp = tmp & 0xFF000000;
/* Somehow these are both 4 too far, so subtract 8. */
ret_offset =
s->output_offset
@ -1154,7 +1186,8 @@ coff_arm_relocate_section (output_bfd, info, input_bfd, input_section,
tmp = tmp | ((ret_offset >> 2) & 0x00FFFFFF);
bfd_put_32 (output_bfd, tmp, contents + rel->r_vaddr - input_section->vma);
bfd_put_32 (output_bfd, tmp, contents + rel->r_vaddr
- input_section->vma);
done = 1;
}
@ -1168,23 +1201,30 @@ coff_arm_relocate_section (output_bfd, info, input_bfd, input_section,
|| h->class == C_LABEL)
{
/* Thumb code calling an ARM function */
asection * s = 0;
long int my_offset;
unsigned long int tmp;
long int ret_offset;
struct coff_link_hash_entry * myh;
asection * s = 0;
long int my_offset;
unsigned long int tmp;
long int ret_offset;
struct coff_link_hash_entry * myh;
struct coff_arm_link_hash_table * globals;
myh = find_thumb_glue (info, name, input_bfd);
if (myh == NULL)
return false;
globals = coff_arm_hash_table (info);
BFD_ASSERT (globals != NULL);
BFD_ASSERT (globals->bfd_of_glue_owner != NULL);
my_offset = myh->root.u.def.value;
s = bfd_get_section_by_name (bfd_of_glue_owner,
s = bfd_get_section_by_name (globals->bfd_of_glue_owner,
THUMB2ARM_GLUE_SECTION_NAME);
BFD_ASSERT (s != NULL);
BFD_ASSERT (s->contents != NULL);
BFD_ASSERT (s->output_section != NULL);
if ((my_offset & 0x01) == 0x01)
{
@ -1222,9 +1262,10 @@ coff_arm_relocate_section (output_bfd, info, input_bfd, input_section,
s->contents + my_offset + 4);
}
BFD_ASSERT (my_offset <= global_thumb_glue_size);
BFD_ASSERT (my_offset <= globals->thumb_glue_size);
/* Now go back and fix up the original bl insn to point here. */
/* Now go back and fix up the original BL insn to point
to here. */
ret_offset =
s->output_offset
+ my_offset
@ -1232,11 +1273,13 @@ coff_arm_relocate_section (output_bfd, info, input_bfd, input_section,
+ rel->r_vaddr)
-4;
tmp = bfd_get_32 (input_bfd, contents + rel->r_vaddr - input_section->vma);
tmp = bfd_get_32 (input_bfd, contents + rel->r_vaddr
- input_section->vma);
bfd_put_32 (output_bfd,
insert_thumb_branch (tmp, ret_offset),
contents + rel->r_vaddr - input_section->vma);
contents + rel->r_vaddr
- input_section->vma);
done = 1;
}
@ -1308,7 +1351,7 @@ coff_arm_relocate_section (output_bfd, info, input_bfd, input_section,
bfd_vma address = rel->r_vaddr - input_section->vma;
if (address > input_section->_raw_size)
rstat = bfd_reloc_outofrange;
rstat = bfd_reloc_outofrange;
else
{
bfd_vma relocation = val + addend;
@ -1492,48 +1535,57 @@ coff_arm_relocate_section (output_bfd, info, input_bfd, input_section,
return true;
}
#if defined COFF_IMAGE_WITH_PE || ! defined COFF_WITH_PE
#ifndef COFF_WITH_PE
boolean
arm_allocate_interworking_sections (info)
struct bfd_link_info *info;
bfd_arm_allocate_interworking_sections (info)
struct bfd_link_info * info;
{
asection * s;
bfd_byte * foo;
asection * s;
bfd_byte * foo;
struct coff_arm_link_hash_table * globals;
#if 0
static char test_char = '1';
static char test_char = '1';
#endif
if (global_arm_glue_size != 0)
globals = coff_arm_hash_table (info);
BFD_ASSERT (globals != NULL);
if (globals->arm_glue_size != 0)
{
BFD_ASSERT (bfd_of_glue_owner != NULL);
BFD_ASSERT (globals->bfd_of_glue_owner != NULL);
s = bfd_get_section_by_name (bfd_of_glue_owner, ARM2THUMB_GLUE_SECTION_NAME);
s = bfd_get_section_by_name
(globals->bfd_of_glue_owner, ARM2THUMB_GLUE_SECTION_NAME);
BFD_ASSERT (s != NULL);
foo = (bfd_byte *) bfd_alloc (bfd_of_glue_owner, global_arm_glue_size);
foo = (bfd_byte *) bfd_alloc
(globals->bfd_of_glue_owner, globals->arm_glue_size);
#if 0
memset (foo, test_char, global_arm_glue_size);
memset (foo, test_char, globals->arm_glue_size);
#endif
s->_raw_size = s->_cooked_size = global_arm_glue_size;
s->_raw_size = s->_cooked_size = globals->arm_glue_size;
s->contents = foo;
}
if (global_thumb_glue_size != 0)
if (globals->thumb_glue_size != 0)
{
BFD_ASSERT (bfd_of_glue_owner != NULL);
BFD_ASSERT (globals->bfd_of_glue_owner != NULL);
s = bfd_get_section_by_name (bfd_of_glue_owner, THUMB2ARM_GLUE_SECTION_NAME);
s = bfd_get_section_by_name
(globals->bfd_of_glue_owner, THUMB2ARM_GLUE_SECTION_NAME);
BFD_ASSERT (s != NULL);
foo = (bfd_byte *) bfd_alloc (bfd_of_glue_owner, global_thumb_glue_size);
foo = (bfd_byte *) bfd_alloc
(globals->bfd_of_glue_owner, globals->thumb_glue_size);
#if 0
memset (foo, test_char, global_thumb_glue_size);
memset (foo, test_char, globals->thumb_glue_size);
#endif
s->_raw_size = s->_cooked_size = global_thumb_glue_size;
s->_raw_size = s->_cooked_size = globals->thumb_glue_size;
s->contents = foo;
}
@ -1545,16 +1597,19 @@ record_arm_to_thumb_glue (info, h)
struct bfd_link_info * info;
struct coff_link_hash_entry * h;
{
const char * name = h->root.root.string;
register asection * s;
char * tmp_name;
struct coff_link_hash_entry * myh;
const char * name = h->root.root.string;
register asection * s;
char * tmp_name;
struct coff_link_hash_entry * myh;
struct coff_arm_link_hash_table * globals;
globals = coff_arm_hash_table (info);
BFD_ASSERT (bfd_of_glue_owner != NULL);
BFD_ASSERT (globals != NULL);
BFD_ASSERT (globals->bfd_of_glue_owner != NULL);
s = bfd_get_section_by_name (bfd_of_glue_owner,
ARM2THUMB_GLUE_SECTION_NAME);
s = bfd_get_section_by_name
(globals->bfd_of_glue_owner, ARM2THUMB_GLUE_SECTION_NAME);
BFD_ASSERT (s != NULL);
@ -1565,9 +1620,8 @@ record_arm_to_thumb_glue (info, h)
sprintf (tmp_name, ARM2THUMB_GLUE_ENTRY_NAME, name);
myh = coff_link_hash_lookup (coff_hash_table (info),
tmp_name,
false, false, true);
myh = coff_link_hash_lookup
(coff_hash_table (info), tmp_name, false, false, true);
if (myh != NULL)
{
@ -1575,18 +1629,17 @@ record_arm_to_thumb_glue (info, h)
return; /* we've already seen this guy */
}
/* The only trick here is using global_arm_glue_size as the value. Even
/* The only trick here is using globals->arm_glue_size as the value. Even
though the section isn't allocated yet, this is where we will be putting
it. */
bfd_coff_link_add_one_symbol (info, bfd_of_glue_owner, tmp_name,
bfd_coff_link_add_one_symbol (info, globals->bfd_of_glue_owner, tmp_name,
BSF_EXPORT | BSF_GLOBAL,
s, global_arm_glue_size + 1,
s, globals->arm_glue_size + 1,
NULL, true, false,
(struct bfd_link_hash_entry **) & myh);
global_arm_glue_size += ARM2THUMB_GLUE_SIZE;
globals->arm_glue_size += ARM2THUMB_GLUE_SIZE;
free (tmp_name);
@ -1598,14 +1651,20 @@ record_thumb_to_arm_glue (info, h)
struct bfd_link_info * info;
struct coff_link_hash_entry * h;
{
const char * name = h->root.root.string;
register asection * s;
char * tmp_name;
struct coff_link_hash_entry * myh;
const char * name = h->root.root.string;
register asection * s;
char * tmp_name;
struct coff_link_hash_entry * myh;
struct coff_arm_link_hash_table * globals;
BFD_ASSERT (bfd_of_glue_owner != NULL);
globals = coff_arm_hash_table (info);
BFD_ASSERT (globals != NULL);
BFD_ASSERT (globals->bfd_of_glue_owner != NULL);
s = bfd_get_section_by_name (bfd_of_glue_owner, THUMB2ARM_GLUE_SECTION_NAME);
s = bfd_get_section_by_name
(globals->bfd_of_glue_owner, THUMB2ARM_GLUE_SECTION_NAME);
BFD_ASSERT (s != NULL);
@ -1615,9 +1674,8 @@ record_thumb_to_arm_glue (info, h)
sprintf (tmp_name, THUMB2ARM_GLUE_ENTRY_NAME, name);
myh = coff_link_hash_lookup (coff_hash_table (info),
tmp_name,
false, false, true);
myh = coff_link_hash_lookup
(coff_hash_table (info), tmp_name, false, false, true);
if (myh != NULL)
{
@ -1625,8 +1683,8 @@ record_thumb_to_arm_glue (info, h)
return; /* we've already seen this guy */
}
bfd_coff_link_add_one_symbol (info, bfd_of_glue_owner, tmp_name,
BSF_LOCAL, s, global_thumb_glue_size + 1,
bfd_coff_link_add_one_symbol (info, globals->bfd_of_glue_owner, tmp_name,
BSF_LOCAL, s, globals->thumb_glue_size + 1,
NULL, true, false,
(struct bfd_link_hash_entry **) & myh);
@ -1647,24 +1705,83 @@ record_thumb_to_arm_glue (info, h)
myh = NULL;
/* Now allocate another symbol to switch back to arm mode. */
bfd_coff_link_add_one_symbol (info, bfd_of_glue_owner, tmp_name,
BSF_LOCAL, s, global_thumb_glue_size + 4,
bfd_coff_link_add_one_symbol (info, globals->bfd_of_glue_owner, tmp_name,
BSF_LOCAL, s, globals->thumb_glue_size + 4,
NULL, true, false,
(struct bfd_link_hash_entry **) & myh);
free (tmp_name);
global_thumb_glue_size += THUMB2ARM_GLUE_SIZE;
globals->thumb_glue_size += THUMB2ARM_GLUE_SIZE;
return;
}
/* Select a BFD to be used to hold the sections used by the glue code.
This function is called from the linker scripts in ld/emultempl/
{armcoff/pe}.em */
boolean
arm_process_before_allocation (abfd, info)
bfd_arm_get_bfd_for_interworking (abfd, info)
bfd * abfd;
struct bfd_link_info * info;
{
struct coff_arm_link_hash_table * globals;
flagword flags;
asection * sec;
/* If we are only performing a partial link do not bother
getting a bfd to hold the glue. */
if (info->relocateable)
return true;
globals = coff_arm_hash_table (info);
BFD_ASSERT (globals != NULL);
if (globals->bfd_of_glue_owner != NULL)
return true;
sec = bfd_get_section_by_name (abfd, ARM2THUMB_GLUE_SECTION_NAME);
if (sec == NULL)
{
flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY;
sec = bfd_make_section (abfd, ARM2THUMB_GLUE_SECTION_NAME);
if (sec == NULL
|| ! bfd_set_section_flags (abfd, sec, flags)
|| ! bfd_set_section_alignment (abfd, sec, 2))
return false;
}
sec = bfd_get_section_by_name (abfd, THUMB2ARM_GLUE_SECTION_NAME);
if (sec == NULL)
{
flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY;
sec = bfd_make_section (abfd, THUMB2ARM_GLUE_SECTION_NAME);
if (sec == NULL
|| ! bfd_set_section_flags (abfd, sec, flags)
|| ! bfd_set_section_alignment (abfd, sec, 2))
return false;
}
/* Save the bfd for later use. */
globals->bfd_of_glue_owner = abfd;
return true;
}
boolean
bfd_arm_process_before_allocation (abfd, info)
bfd * abfd;
struct bfd_link_info * info;
{
asection * sec;
struct coff_arm_link_hash_table * globals;
/* If we are only performing a partial link do not bother
to construct any glue. */
@ -1676,7 +1793,10 @@ arm_process_before_allocation (abfd, info)
_bfd_coff_get_external_symbols (abfd);
BFD_ASSERT (bfd_of_glue_owner != NULL);
globals = coff_arm_hash_table (info);
BFD_ASSERT (globals != NULL);
BFD_ASSERT (globals->bfd_of_glue_owner != NULL);
/* Rummage around all the relocs and map the glue vectors. */
sec = abfd->sections;
@ -1707,7 +1827,7 @@ arm_process_before_allocation (abfd, info)
symndx = rel->r_symndx;
/* If the relocation is not against a symbol it cannot concern us. */
/* If the relocation is not against a symbol it cannot concern us. */
if (symndx == -1)
continue;
@ -1758,9 +1878,20 @@ arm_process_before_allocation (abfd, info)
return true;
}
#endif /* COFF_IMAGE_WITH_PE or not COFF_WITH_PE */
#endif /* ! COFF_WITH_PE */
#define coff_bfd_reloc_type_lookup coff_arm_reloc_type_lookup
#define coff_relocate_section coff_arm_relocate_section
#define coff_bfd_is_local_label_name coff_arm_is_local_label_name
#define coff_adjust_symndx coff_arm_adjust_symndx
#define coff_link_output_has_begun coff_arm_link_output_has_begun
#define coff_final_link_postscript coff_arm_final_link_postscript
#define coff_bfd_merge_private_bfd_data coff_arm_merge_private_bfd_data
#define coff_bfd_print_private_bfd_data coff_arm_print_private_bfd_data
#define coff_bfd_set_private_flags _bfd_coff_arm_set_private_flags
#define coff_bfd_copy_private_bfd_data coff_arm_copy_private_bfd_data
#define coff_bfd_link_hash_table_create coff_arm_link_hash_table_create
#define coff_relocate_section coff_arm_relocate_section
/* When doing a relocateable link, we want to convert ARM26 relocs
into ARM26D relocs. */
@ -1789,14 +1920,13 @@ coff_arm_adjust_symndx (obfd, info, ibfd, sec, irel, adjustedp)
return true;
}
#if defined COFF_IMAGE_WITH_PE || ! defined COFF_WITH_PE
/* Called when merging the private data areas of two BFDs.
This is important as it allows us to detect if we are
attempting to merge binaries compiled for different ARM
targets, eg different CPUs or differents APCS's. */
boolean
coff_arm_bfd_merge_private_bfd_data (ibfd, obfd)
static boolean
coff_arm_merge_private_bfd_data (ibfd, obfd)
bfd * ibfd;
bfd * obfd;
{
@ -1892,8 +2022,8 @@ coff_arm_bfd_merge_private_bfd_data (ibfd, obfd)
/* Display the flags field. */
boolean
coff_arm_bfd_print_private_bfd_data (abfd, ptr)
static boolean
coff_arm_print_private_bfd_data (abfd, ptr)
bfd * abfd;
PTR ptr;
{
@ -1925,10 +2055,12 @@ coff_arm_bfd_print_private_bfd_data (abfd, ptr)
/* Copies the given flags into the coff_tdata.flags field.
Typically these flags come from the f_flags[] field of
the COFF filehdr structure, which contains important,
target specific information. */
target specific information.
Note: Although this function is static, it is explicitly
called from both coffcode.h and peicode.h. */
boolean
coff_arm_bfd_set_private_flags (abfd, flags)
static boolean
_bfd_coff_arm_set_private_flags (abfd, flags)
bfd * abfd;
flagword flags;
{
@ -1965,8 +2097,8 @@ coff_arm_bfd_set_private_flags (abfd, flags)
/* Copy the important parts of the target specific data
from one instance of a BFD to another. */
boolean
coff_arm_bfd_copy_private_bfd_data (src, dest)
static boolean
coff_arm_copy_private_bfd_data (src, dest)
bfd * src;
bfd * dest;
{
@ -2020,7 +2152,7 @@ coff_arm_bfd_copy_private_bfd_data (src, dest)
#define LOCAL_LABEL_PREFIX "."
#define USER_LABEL_PREFIX "_"
boolean
static boolean
coff_arm_is_local_label_name (abfd, name)
bfd * abfd;
const char * name;
@ -2052,27 +2184,7 @@ coff_arm_is_local_label_name (abfd, name)
default: return false; /* Cannot make our minds up - default to false so that it will not be stripped by accident. */
}
}
#endif /* COFF_IMAGE_WITH_PE or not COFF_WITH_PE */
#define coff_bfd_is_local_label_name coff_arm_is_local_label_name
#define coff_adjust_symndx coff_arm_adjust_symndx
#define coff_link_output_has_begun coff_arm_link_output_has_begun
#define coff_final_link_postscript coff_arm_final_link_postscript
#define coff_bfd_merge_private_bfd_data coff_arm_bfd_merge_private_bfd_data
#define coff_bfd_print_private_bfd_data coff_arm_bfd_print_private_bfd_data
#define coff_bfd_set_private_flags coff_arm_bfd_set_private_flags
#define coff_bfd_copy_private_bfd_data coff_arm_bfd_copy_private_bfd_data
extern boolean coff_arm_bfd_set_private_flags ();
extern boolean coff_arm_bfd_merge_private_bfd_data ();
extern boolean coff_arm_bfd_copy_private_bfd_data ();
extern boolean coff_arm_bfd_print_private_bfd_data ();
extern boolean coff_arm_final_link_postscript ();
extern boolean coff_arm_link_output_has_begun ();
extern boolean coff_arm_is_local_label_name ();
#if defined COFF_IMAGE_WITH_PE || ! defined COFF_WITH_PE
/* This piece of machinery exists only to guarantee that the bfd that holds
the glue section is written last.
@ -2081,28 +2193,35 @@ extern boolean coff_arm_is_local_label_name ();
krk@cygnus.com */
boolean
coff_arm_link_output_has_begun (sub)
static boolean
coff_arm_link_output_has_begun (sub, info)
bfd * sub;
struct coff_final_link_info * info;
{
return (sub->output_has_begun || sub == bfd_of_glue_owner);
return (sub->output_has_begun || sub == coff_arm_hash_table (info->info)->bfd_of_glue_owner);
}
boolean
static boolean
coff_arm_final_link_postscript (abfd, pfinfo)
bfd * abfd;
struct coff_final_link_info * pfinfo;
{
if (bfd_of_glue_owner != NULL)
struct coff_arm_link_hash_table * globals = coff_arm_hash_table (pfinfo->info);
BFD_ASSERT (globals != NULL);
if (globals->bfd_of_glue_owner != NULL)
{
if (! _bfd_coff_link_input_bfd (pfinfo, bfd_of_glue_owner))
if (! _bfd_coff_link_input_bfd (pfinfo, globals->bfd_of_glue_owner))
return false;
bfd_of_glue_owner->output_has_begun = true;
globals->bfd_of_glue_owner->output_has_begun = true;
}
return true;
}
#endif /* COFF_IMAGE_WITH_PE or not COFF_WITH_PE */
#if 0
#define coff_SWAP_sym_in arm_bfd_coff_swap_sym_in
static void coff_swap_sym_in PARAMS ((bfd *, PTR, PTR));
@ -2164,6 +2283,7 @@ arm_bfd_coff_swap_sym_in (abfd, ext1, in1)
return;
}
#endif
#include "coffcode.h"

74
bfd/coffcode.h
View File

@ -863,7 +863,8 @@ dependent COFF routines:
. struct bfd_link_hash_entry **hashp));
.
. boolean (*_bfd_coff_link_output_has_begun) PARAMS ((
. bfd * abfd ));
. bfd * abfd,
. struct coff_final_link_info * pfinfo));
. boolean (*_bfd_coff_final_link_postscript) PARAMS ((
. bfd * abfd,
. struct coff_final_link_info * pfinfo));
@ -982,8 +983,8 @@ dependent COFF routines:
. ((coff_backend_info (abfd)->_bfd_coff_link_add_one_symbol)\
. (info, abfd, name, flags, section, value, string, cp, coll, hashp))
.
.#define bfd_coff_link_output_has_begun(a) \
. ((coff_backend_info (a)->_bfd_coff_link_output_has_begun) (a))
.#define bfd_coff_link_output_has_begun(a,p) \
. ((coff_backend_info (a)->_bfd_coff_link_output_has_begun) (a,p))
.#define bfd_coff_final_link_postscript(a,p) \
. ((coff_backend_info (a)->_bfd_coff_final_link_postscript) (a,p))
.
@ -1028,6 +1029,8 @@ coff_new_section_hook (abfd, section)
bfd * abfd;
asection * section;
{
combined_entry_type *native;
section->alignment_power = COFF_DEFAULT_SECTION_ALIGNMENT_POWER;
#ifdef RS6000COFF_C
@ -1044,9 +1047,21 @@ coff_new_section_hook (abfd, section)
@@ The 10 is a guess at a plausible maximum number of aux entries
(but shouldn't be a constant). */
coffsymbol (section->symbol)->native =
(combined_entry_type *) bfd_zalloc (abfd,
sizeof (combined_entry_type) * 10);
native = ((combined_entry_type *)
bfd_zalloc (abfd, sizeof (combined_entry_type) * 10));
if (native == NULL)
return false;
/* We don't need to set up n_name, n_value, or n_scnum in the native
symbol information, since they'll be overriden by the BFD symbol
anyhow. However, we do need to set the type and storage class,
in case this symbol winds up getting written out. The value 0
for n_numaux is already correct. */
native->u.syment.n_type = T_NULL;
native->u.syment.n_sclass = C_STAT;
coffsymbol (section->symbol)->native = native;
/* The .stab section must be aligned to 2**2 at most, because
otherwise there may be gaps in the section which gdb will not
@ -1329,7 +1344,7 @@ coff_mkobject_hook (abfd, filehdr, aouthdr)
#ifdef ARM
/* Set the flags field from the COFF header read in */
if (! coff_arm_bfd_set_private_flags (abfd, internal_f->f_flags))
if (! _bfd_coff_arm_set_private_flags (abfd, internal_f->f_flags))
coff->flags = 0;
#endif
@ -2198,11 +2213,10 @@ coff_compute_section_file_positions (abfd)
asection *previous = (asection *) NULL;
file_ptr sofar = FILHSZ;
boolean align_adjust;
#ifndef I960
unsigned int count;
#ifdef ALIGN_SECTIONS_IN_FILE
file_ptr old_sofar;
#endif
unsigned int count;
#ifdef RS6000COFF_C
/* On XCOFF, if we have symbols, set up the .debug section. */
@ -2741,13 +2755,22 @@ coff_write_object_contents (abfd)
{
unsigned int i, count;
asymbol **psym;
coff_symbol_type *csym;
coff_symbol_type *csym = NULL;
asymbol **psymsec;
psymsec = NULL;
count = bfd_get_symcount (abfd);
for (i = 0, psym = abfd->outsymbols; i < count; i++, psym++)
{
/* Here *PSYM is the section symbol for CURRENT. */
if ((*psym)->section != current)
continue;
/* Remember the location of the first symbol in this
section. */
if (psymsec == NULL)
psymsec = psym;
/* See if this is the section symbol. */
if (strcmp ((*psym)->name, current->name) == 0)
{
csym = coff_symbol_from (abfd, *psym);
@ -2757,6 +2780,9 @@ coff_write_object_contents (abfd)
|| csym->native->u.syment.n_sclass != C_STAT
|| csym->native->u.syment.n_type != T_NULL)
continue;
/* Here *PSYM is the section symbol for CURRENT. */
break;
}
}
@ -2793,6 +2819,24 @@ coff_write_object_contents (abfd)
IMAGE_COMDAT_SELECT_EXACT_MATCH;
break;
}
/* The COMDAT symbol must be the first symbol from this
section in the symbol table. In order to make this
work, we move the COMDAT symbol before the first
symbol we found in the search above. It's OK to
rearrange the symbol table at this point, because
coff_renumber_symbols is going to rearrange it
further and fix up all the aux entries. */
if (psym != psymsec)
{
asymbol *hold;
asymbol **pcopy;
hold = *psym;
for (pcopy = psym; pcopy > psymsec; pcopy--)
pcopy[0] = pcopy[-1];
*psymsec = hold;
}
}
}
#endif /* COFF_WITH_PE */
@ -3353,7 +3397,8 @@ coff_slurp_line_table (abfd, asect)
warned = false;
symndx = dst.l_addr.l_symndx;
if (symndx < 0 || symndx >= obj_raw_syment_count (abfd))
if (symndx < 0
|| (unsigned long) symndx >= obj_raw_syment_count (abfd))
{
(*_bfd_error_handler)
("%s: warning: illegal symbol index %ld in line numbers",
@ -4098,8 +4143,9 @@ dummy_reloc16_extra_cases (abfd, link_info, link_order, reloc, data, src_ptr,
#ifndef coff_link_output_has_begun
#define coff_link_output_has_begun _coff_link_output_has_begun
static boolean
_coff_link_output_has_begun (abfd)
_coff_link_output_has_begun (abfd, info)
bfd * abfd;
struct bfd_link_info * info;
{
return abfd->output_has_begun;
}

41
bfd/cofflink.c
View File

@ -244,6 +244,9 @@ coff_link_check_ar_symbols (abfd, info, pneeded)
bfd_coff_swap_sym_in (abfd, (PTR) esym, (PTR) &sym);
if ((sym.n_sclass == C_EXT
#ifdef C_SYSTEM
|| sym.n_sclass == C_SYSTEM
#endif
|| (sym_is_global && (*sym_is_global) (abfd, &sym)))
&& (sym.n_scnum != 0 || sym.n_value != 0))
{
@ -334,6 +337,9 @@ coff_link_add_symbols (abfd, info)
bfd_coff_swap_sym_in (abfd, (PTR) esym, (PTR) &sym);
if (sym.n_sclass == C_EXT
#ifdef C_SYSTEM
|| sym.n_sclass == C_SYSTEM
#endif
|| (sym_is_global && (*sym_is_global) (abfd, &sym)))
{
const char *name;
@ -762,7 +768,7 @@ _bfd_coff_final_link (abfd, info)
== bfd_target_coff_flavour))
{
sub = p->u.indirect.section->owner;
if (! sub->output_has_begun)
if (! bfd_coff_link_output_has_begun (sub, & finfo))
{
if (! _bfd_coff_link_input_bfd (&finfo, sub))
goto error_return;
@ -783,6 +789,9 @@ _bfd_coff_final_link (abfd, info)
}
}
if (! bfd_coff_final_link_postscript (abfd, & finfo))
goto error_return;
/* Free up the buffers used by _bfd_coff_link_input_bfd. */
coff_debug_merge_hash_table_free (&finfo.debug_merge);
@ -1298,8 +1307,9 @@ _bfd_coff_link_input_bfd (finfo, input_bfd)
*secpp = bfd_com_section_ptr;
}
/* Extract the flag indicating if this symbol is used by a relocation */
if (( finfo->info->strip != strip_none
/* Extract the flag indicating if this symbol is used by a
relocation. */
if ((finfo->info->strip != strip_none
|| finfo->info->discard != discard_none)
&& finfo->info->relocateable)
dont_skip_symbol = *indexp;
@ -1319,6 +1329,9 @@ _bfd_coff_link_input_bfd (finfo, input_bfd)
if (! skip)
{
if (isym.n_sclass == C_EXT
#ifdef C_SYSTEM
|| isym.n_sclass == C_SYSTEM
#endif
|| (sym_is_global && (*sym_is_global) (input_bfd, &isym)))
{
/* This is a global symbol. Global symbols come at the
@ -1339,11 +1352,23 @@ _bfd_coff_link_input_bfd (finfo, input_bfd)
}
/* If we stripping debugging symbols, and this is a debugging
symbol, then skip it. */
symbol, then skip it. FIXME: gas sets the section to N_ABS
for some types of debugging symbols; I don't know if this is
a bug or not. In any case, we handle it here. */
if (! skip
&& finfo->info->strip == strip_debugger
&& ! dont_skip_symbol
&& isym.n_scnum == N_DEBUG)
&& (isym.n_scnum == N_DEBUG
|| (isym.n_scnum == N_ABS
&& (isym.n_sclass == C_AUTO
|| isym.n_sclass == C_REG
|| isym.n_sclass == C_MOS
|| isym.n_sclass == C_MOE
|| isym.n_sclass == C_MOU
|| isym.n_sclass == C_ARG
|| isym.n_sclass == C_REGPARM
|| isym.n_sclass == C_FIELD
|| isym.n_sclass == C_EOS))))
skip = true;
/* If some symbols are stripped based on the name, work out the
@ -2373,6 +2398,7 @@ _bfd_coff_write_task_globals (h, data)
{
struct coff_final_link_info *finfo = (struct coff_final_link_info *) data;
boolean rtnval = true;
boolean save_global_to_static;
if (h->indx < 0)
{
@ -2380,9 +2406,12 @@ _bfd_coff_write_task_globals (h, data)
{
case bfd_link_hash_defined:
case bfd_link_hash_defweak:
save_global_to_static = finfo->global_to_static;
finfo->global_to_static = true;
rtnval = _bfd_coff_write_global_sym (h, data);
finfo->global_to_static = false;
finfo->global_to_static = save_global_to_static;
break;
default:
break;
}
}

22
bfd/peicode.h
View File

@ -1355,8 +1355,8 @@ pe_print_idata(abfd, vfile)
bfd_vma forward_chain;
bfd_vma dll_name;
bfd_vma first_thunk;
int idx;
int j;
int idx = 0;
bfd_size_type j;
char *dll;
fprintf (file,
@ -1438,13 +1438,9 @@ pe_print_idata(abfd, vfile)
{
int ordinal;
char *member_name;
bfd_vma hint_member;
bfd_vma hint_member = 0;
bfd_vma iat_member;
if (time_stamp != 0)
{
}
if (hint_addr != 0)
hint_member = bfd_get_32 (abfd, data + idx + j);
iat_member = bfd_get_32 (abfd, data + idx2 + j);
@ -1517,8 +1513,8 @@ pe_print_edata (abfd, vfile)
short minor_ver;
bfd_vma name; /* rva - relative to image base */
long base; /* ordinal base */
long num_functions; /* Number in the export address table */
long num_names; /* Number in the name pointer table */
unsigned long num_functions; /* Number in the export address table */
unsigned long num_names; /* Number in the name pointer table */
bfd_vma eat_addr; /* rva to the export address table */
bfd_vma npt_addr; /* rva to the Export Name Pointer Table */
bfd_vma ot_addr; /* rva to the Ordinal Table */
@ -1608,10 +1604,10 @@ pe_print_edata (abfd, vfile)
fprintf(file,
"\tExport Address Table \t\t%lx\n",
(unsigned long) edt.num_functions);
edt.num_functions);
fprintf(file,
"\t[Name Pointer/Ordinal] Table\t%ld\n", edt.num_names);
"\t[Name Pointer/Ordinal] Table\t%lu\n", edt.num_names);
fprintf(file,
"Table Addresses\n");
@ -1981,7 +1977,7 @@ pe_print_private_bfd_data (abfd, vfile)
{
fputc ('\n', file);
return pe_saved_bfd_print_private_bfd_data (abfd, vfile);
return pe_saved_coff_bfd_print_private_bfd_data (abfd, vfile);
}
return true;
@ -2046,7 +2042,7 @@ pe_mkobject_hook (abfd, filehdr, aouthdr)
#endif
#ifdef ARM
if (! coff_arm_bfd_set_private_flags (abfd, internal_f->f_flags))
if (! _bfd_coff_arm_set_private_flags (abfd, internal_f->f_flags))
coff_data (abfd) ->flags = 0;
#endif