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Add new style linker support to COFF backend. a29k only for now. 

* cofflink.c: New file.
	* libcoff-in.h: Include bfdlink.h.
	(obj_coff_external_syms, obj_coff_strings): Define accessor macro.
	(obj_coff_sym_hashes): Define accessor macro.
	(struct coff_tdata): Add fields external_syms, strings, and
	sym_hashes.
	(struct coff_link_hash_entry): Define.
	(struct coff_link_hash_table): Define.
	(coff_link_hash_lookup, coff_link_hash_traverse): Define.
	(coff_hash_table): Define.
	(_bfd_coff_link_hash_table_create): Declare.
	(_bfd_coff_link_add_symbols, _bfd_coff_final_link): Declare.
	* coffcode.h (bfd_coff_backend_data): Add fields _bfd_relsz,
	_bfd_coff_swap_reloc_in, _bfd_coff_sym_is_global,
	_bfd_coff_compute_section_file_positions,
	_bfd_coff_relocate_section.
	(bfd_coff_relsz, bfd_coff_swap_reloc_in): Define.
	(bfd_coff_sym_is_global): Define.
	(bfd_coff_compute_section_file_positions): Define.
	(bfd_coff_relocate_section): Define.
	(coff_mkobject_hook): Initialize obj_raw_syment_count and
	obj_conv_table_size.
	(coff_compute_section_file_positions): Set target_index of all
	sections.  Set output_has_begun field.
	(coff_write_object_contents): Don't set target_index; now done by
	coff_compute_section_file_positions.  Remove obsolete handling of
	scn_base and data_base.  Don't bother to check that target_index
	is positive, since it always is.  Remove use of pad, which is
	always zero.  Check obj_raw_syment_count, not bfd_get_symcount,
	for the number of symbols, but only write them out if
	bfd_get_symcount is non-zero.
	(coff_slurp_symbol_table): Use obj_raw_syment_count, not
	bfd_get_symcount for the number of symbols.  Don't set
	obj_conv_table_size.
	(coff_sym_is_global): New static function or macro.
	(coff_slurp_reloc_table): Call coff_swap_reloc_in, not
	bfd_swap_reloc_in.
	(coff_bfd_link_hash_table_create): If coff_relocate_section is
	defined, define as _bfd_coff_link_hash_table_create.
	(coff_bfd_link_add_symbols): Similar change.
	(coff_bfd_final_link): Similar change.
	(coff_relocate_section): Define as NULL if not defined.
	(bfd_coff_std_swap_table): Initialize new fields.
	* coffgen.c (coff_real_object_p): Don't set obj_raw_syment_count
	and obj_conv_table_size here.
	(coff_count_linenumbers): Reindent.  If bfd_get_symcount is zero,
	add up the line numbers from the sections.
	(coff_write_symbols): Don't set bfd_get_symcount.
	(coff_pointerize_aux): Don't pointerize a nonpositive x_endndx
	field.
	(coff_get_normalized_symtab): Use obj_raw_syment_count, not
	bfd_get_symcount.
	(coff_print_symbol): If auxp->fix_end, print x_endndx value.
	* coffswap.h (coff_swap_reloc_in): Rename from bfd_swap_reloc_in.
	Reindent.  Change argument type to  PTR.
	* coff-a29k.c (coff_a29k_relocate_section): New static function.
	(coff_relocate_section): Define.
	* configure.in (a29kcoff_big_vec): Compile cofflink.o.
	* coff-alpha.c (alpha_ecoff_backend_data): Initialize new fields.
	* coff-mips.c (mips_ecoff_backend_data): Likewise.
	* libcoff.h: Rebuilt.
	* Makefile.in: Rebuilt dependencies.
	(BFD32_BACKENDS): Add cofflink.o.
	(CFILES): Add cofflink.c.
This commit is contained in:
Ian Lance Taylor 1994-09-06 19:28:55 +00:00
parent de733a0edf
commit 69645d10fb
11 changed files with 2787 additions and 244 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
bfd/.Sanitize
View File

@ -78,6 +78,7 @@ coff-we32k.c
coff-z8k.c
coffcode.h
coffgen.c
cofflink.c
coffswap.h
config
config.bfd

68
bfd/ChangeLog
View File

@ -1,3 +1,71 @@
Tue Sep 6 14:51:11 1994 Ian Lance Taylor (ian@sanguine.cygnus.com)
Add new style linker support to COFF backend. a29k only for now.
* cofflink.c: New file.
* libcoff-in.h: Include bfdlink.h.
(obj_coff_external_syms, obj_coff_strings): Define accessor macro.
(obj_coff_sym_hashes): Define accessor macro.
(struct coff_tdata): Add fields external_syms, strings, and
sym_hashes.
(struct coff_link_hash_entry): Define.
(struct coff_link_hash_table): Define.
(coff_link_hash_lookup, coff_link_hash_traverse): Define.
(coff_hash_table): Define.
(_bfd_coff_link_hash_table_create): Declare.
(_bfd_coff_link_add_symbols, _bfd_coff_final_link): Declare.
* coffcode.h (bfd_coff_backend_data): Add fields _bfd_relsz,
_bfd_coff_swap_reloc_in, _bfd_coff_sym_is_global,
_bfd_coff_compute_section_file_positions,
_bfd_coff_relocate_section.
(bfd_coff_relsz, bfd_coff_swap_reloc_in): Define.
(bfd_coff_sym_is_global): Define.
(bfd_coff_compute_section_file_positions): Define.
(bfd_coff_relocate_section): Define.
(coff_mkobject_hook): Initialize obj_raw_syment_count and
obj_conv_table_size.
(coff_compute_section_file_positions): Set target_index of all
sections. Set output_has_begun field.
(coff_write_object_contents): Don't set target_index; now done by
coff_compute_section_file_positions. Remove obsolete handling of
scn_base and data_base. Don't bother to check that target_index
is positive, since it always is. Remove use of pad, which is
always zero. Check obj_raw_syment_count, not bfd_get_symcount,
for the number of symbols, but only write them out if
bfd_get_symcount is non-zero.
(coff_slurp_symbol_table): Use obj_raw_syment_count, not
bfd_get_symcount for the number of symbols. Don't set
obj_conv_table_size.
(coff_sym_is_global): New static function or macro.
(coff_slurp_reloc_table): Call coff_swap_reloc_in, not
bfd_swap_reloc_in.
(coff_bfd_link_hash_table_create): If coff_relocate_section is
defined, define as _bfd_coff_link_hash_table_create.
(coff_bfd_link_add_symbols): Similar change.
(coff_bfd_final_link): Similar change.
(coff_relocate_section): Define as NULL if not defined.
(bfd_coff_std_swap_table): Initialize new fields.
* coffgen.c (coff_real_object_p): Don't set obj_raw_syment_count
and obj_conv_table_size here.
(coff_count_linenumbers): Reindent. If bfd_get_symcount is zero,
add up the line numbers from the sections.
(coff_write_symbols): Don't set bfd_get_symcount.
(coff_pointerize_aux): Don't pointerize a nonpositive x_endndx
field.
(coff_get_normalized_symtab): Use obj_raw_syment_count, not
bfd_get_symcount.
(coff_print_symbol): If auxp->fix_end, print x_endndx value.
* coffswap.h (coff_swap_reloc_in): Rename from bfd_swap_reloc_in.
Reindent. Change argument type to PTR.
* coff-a29k.c (coff_a29k_relocate_section): New static function.
(coff_relocate_section): Define.
* configure.in (a29kcoff_big_vec): Compile cofflink.o.
* coff-alpha.c (alpha_ecoff_backend_data): Initialize new fields.
* coff-mips.c (mips_ecoff_backend_data): Likewise.
* libcoff.h: Rebuilt.
* Makefile.in: Rebuilt dependencies.
(BFD32_BACKENDS): Add cofflink.o.
(CFILES): Add cofflink.c.
Tue Sep 6 14:00:45 1994 Ken Raeburn (raeburn@cujo.cygnus.com)
* coffgen.c (coff_print_symbol, case bfd_symbol_print_all): Check

221
bfd/coff-a29k.c
View File

@ -31,6 +31,9 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
static long get_symbol_value PARAMS ((asymbol *));
static bfd_reloc_status_type a29k_reloc
PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
static boolean coff_a29k_relocate_section
PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
struct internal_reloc *, struct internal_syment *, asection **));
#define INSERT_HWORD(WORD,HWORD) \
(((WORD) & 0xff00ff00) | (((HWORD) & 0xff00) << 8) | ((HWORD)& 0xff))
@ -303,6 +306,224 @@ reloc_processing (relent,reloc, symbols, abfd, section)
}
}
/* The reloc processing routine for the optimized COFF linker. */
static boolean
coff_a29k_relocate_section (output_bfd, info, input_bfd, input_section,
contents, relocs, syms, sections)
bfd *output_bfd;
struct bfd_link_info *info;
bfd *input_bfd;
asection *input_section;
bfd_byte *contents;
struct internal_reloc *relocs;
struct internal_syment *syms;
asection **sections;
{
struct internal_reloc *rel;
struct internal_reloc *relend;
boolean hihalf;
bfd_vma hihalf_val;
/* If we are performing a relocateable link, we don't need to do a
thing. The caller will take care of adjusting the reloc
addresses and symbol indices. */
if (info->relocateable)
return true;
hihalf = false;
hihalf_val = 0;
rel = relocs;
relend = rel + input_section->reloc_count;
for (; rel < relend; rel++)
{
long symndx;
bfd_byte *loc;
struct coff_link_hash_entry *h;
struct internal_syment *sym;
asection *sec;
bfd_vma val;
boolean overflow;
unsigned long insn;
long signed_value;
unsigned long unsigned_value;
bfd_reloc_status_type rstat;
symndx = rel->r_symndx;
loc = contents + rel->r_vaddr - input_section->vma;
h = obj_coff_sym_hashes (input_bfd)[symndx];
sym = NULL;
sec = NULL;
val = 0;
/* An R_IHCONST reloc does not have a symbol. Instead, the
symbol index is an addend. R_IHCONST is always used in
conjunction with R_IHHALF. */
if (rel->r_type != R_IHCONST)
{
if (h == NULL)
{
sym = syms + symndx;
sec = sections[symndx];
val = (sec->output_section->vma
+ sec->output_offset
+ sym->n_value
- sec->vma);
}
else
{
if (h->root.type == bfd_link_hash_defined)
{
sec = h->root.u.def.section;
val = (h->root.u.def.value
+ sec->output_section->vma
+ sec->output_offset);
}
else
{
if (! ((*info->callbacks->undefined_symbol)
(info, h->root.root.string, input_bfd, input_section,
rel->r_vaddr - input_section->vma)))
return false;
}
}
if (hihalf)
{
if (! ((*info->callbacks->reloc_dangerous)
(info, "missing IHCONST reloc", input_bfd,
input_section, rel->r_vaddr - input_section->vma)))
return false;
hihalf = false;
}
}
overflow = false;
switch (rel->r_type)
{
default:
bfd_set_error (bfd_error_bad_value);
return false;
case R_IREL:
insn = bfd_get_32 (input_bfd, loc);
/* Extract the addend. */
signed_value = EXTRACT_HWORD (insn);
signed_value = SIGN_EXTEND_HWORD (signed_value);
signed_value <<= 2;
/* Determine the destination of the jump. */
signed_value += val + rel->r_vaddr - input_section->vma;
if ((signed_value & ~0x3ffff) == 0)
{
/* We can use an absolute jump. */
insn |= (1 << 24);
}
else
{
/* Make the destination PC relative. */
signed_value -= (input_section->output_section->vma
+ input_section->output_offset
+ (rel->r_vaddr - input_section->vma));
if (signed_value > 0x1ffff || signed_value < - 0x20000)
{
overflow = true;
signed_value = 0;
}
}
/* Put the adjusted value back into the instruction. */
signed_value >>= 2;
insn = INSERT_HWORD (insn, signed_value);
bfd_put_32 (input_bfd, (bfd_vma) insn, loc);
break;
case R_ILOHALF:
insn = bfd_get_32 (input_bfd, loc);
unsigned_value = EXTRACT_HWORD (insn);
unsigned_value += val;
insn = INSERT_HWORD (insn, unsigned_value);
bfd_put_32 (input_bfd, insn, loc);
break;
case R_IHIHALF:
/* Save the value for the R_IHCONST reloc. */
hihalf = true;
hihalf_val = val;
break;
case R_IHCONST:
if (! hihalf)
{
if (! ((*info->callbacks->reloc_dangerous)
(info, "missing IHIHALF reloc", input_bfd,
input_section, rel->r_vaddr - input_section->vma)))
return false;
hihalf_val = 0;
}
insn = bfd_get_32 (input_bfd, loc);
unsigned_value = rel->r_symndx + hihalf_val;
unsigned_value >>= 16;
insn = INSERT_HWORD (insn, unsigned_value);
bfd_put_32 (input_bfd, (bfd_vma) insn, loc);
hihalf = false;
break;
case R_BYTE:
case R_HWORD:
case R_WORD:
rstat = _bfd_relocate_contents (howto_table + rel->r_type,
input_bfd, val, loc);
if (rstat == bfd_reloc_overflow)
overflow = true;
else if (rstat != bfd_reloc_ok)
abort ();
break;
}
if (overflow)
{
const char *name;
char buf[SYMNMLEN + 1];
if (h != NULL)
name = h->root.root.string;
else if (sym == NULL)
name = "*unknown*";
else if (sym->_n._n_n._n_zeroes == 0
&& sym->_n._n_n._n_offset != 0)
name = obj_coff_strings (input_bfd) + sym->_n._n_n._n_offset;
else
{
strncpy (buf, sym->_n._n_name, SYMNMLEN);
buf[SYMNMLEN] = '\0';
name = buf;
}
if (! ((*info->callbacks->reloc_overflow)
(info, name, howto_table[rel->r_type].name, (bfd_vma) 0,
input_bfd, input_section,
rel->r_vaddr - input_section->vma)))
return false;
}
}
return true;
}
#define coff_relocate_section coff_a29k_relocate_section
#include "coffcode.h"
const bfd_target a29kcoff_big_vec =

60
bfd/coff-alpha.c
View File

@ -35,6 +35,7 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
static const bfd_target *alpha_ecoff_object_p PARAMS ((bfd *));
static boolean alpha_ecoff_bad_format_hook PARAMS ((bfd *abfd, PTR filehdr));
static PTR alpha_ecoff_mkobject_hook PARAMS ((bfd *, PTR filehdr, PTR aouthdr));
static void alpha_ecoff_swap_reloc_in PARAMS ((bfd *, PTR,
struct internal_reloc *));
static void alpha_ecoff_swap_reloc_out PARAMS ((bfd *,
@ -472,6 +473,40 @@ alpha_ecoff_bad_format_hook (abfd, filehdr)
return true;
}
/* This is a hook called by coff_real_object_p to create any backend
specific information. */
static PTR
alpha_ecoff_mkobject_hook (abfd, filehdr, aouthdr)
bfd *abfd;
PTR filehdr;
PTR aouthdr;
{
PTR ecoff;
ecoff = _bfd_ecoff_mkobject_hook (abfd, filehdr, aouthdr);
if (ecoff != NULL)
{
struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
/* Set additional BFD flags according to the object type from the
machine specific file header flags. */
switch (internal_f->f_flags & F_ALPHA_OBJECT_TYPE_MASK)
{
case F_ALPHA_SHARABLE:
abfd->flags |= DYNAMIC;
break;
case F_ALPHA_CALL_SHARED:
/* Always executable if using shared libraries as the run time
loader might resolve undefined references. */
abfd->flags |= (DYNAMIC | EXEC_P);
break;
}
}
return ecoff;
}
/* Reloc handling. */
@ -641,7 +676,7 @@ alpha_adjust_reloc_in (abfd, intern, rptr)
some reason the address of this reloc type is not adjusted by
the section vma. We record the gp value for this object file
here, for convenience when doing the GPDISP relocation. */
rptr->sym_ptr_ptr = bfd_abs_section.symbol_ptr_ptr;
rptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
rptr->address = intern->r_vaddr;
rptr->addend = ecoff_data (abfd)->gp;
break;
@ -954,7 +989,7 @@ alpha_ecoff_get_relocated_section_contents (abfd, link_info, link_order,
/* Figure out the relocation of this symbol. */
symbol = *rel->sym_ptr_ptr;
if (symbol->section == &bfd_und_section)
if (bfd_is_und_section (symbol->section))
r = bfd_reloc_undefined;
if (bfd_is_com_section (symbol->section))
@ -1014,7 +1049,7 @@ alpha_ecoff_get_relocated_section_contents (abfd, link_info, link_order,
/* Figure out the relocation of this symbol. */
symbol = *rel->sym_ptr_ptr;
if (symbol->section == &bfd_und_section)
if (bfd_is_und_section (symbol->section))
r = bfd_reloc_undefined;
if (bfd_is_com_section (symbol->section))
@ -1047,7 +1082,7 @@ alpha_ecoff_get_relocated_section_contents (abfd, link_info, link_order,
/* Figure out the relocation of this symbol. */
symbol = *rel->sym_ptr_ptr;
if (symbol->section == &bfd_und_section)
if (bfd_is_und_section (symbol->section))
r = bfd_reloc_undefined;
if (bfd_is_com_section (symbol->section))
@ -1382,7 +1417,7 @@ alpha_relocate_section (output_bfd, info, input_bfd, input_section,
bfd_get_section_by_name (input_bfd, ".fini");
symndx_to_section[RELOC_SECTION_LITA] =
bfd_get_section_by_name (input_bfd, ".lita");
symndx_to_section[RELOC_SECTION_ABS] = &bfd_abs_section;
symndx_to_section[RELOC_SECTION_ABS] = bfd_abs_section_ptr;
ecoff_data (input_bfd)->symndx_to_section = symndx_to_section;
}
@ -1911,13 +1946,14 @@ static const struct ecoff_backend_data alpha_ecoff_backend_data =
(unsigned (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* reloc_out */
alpha_ecoff_swap_filehdr_out, alpha_ecoff_swap_aouthdr_out,
alpha_ecoff_swap_scnhdr_out,
FILHSZ, AOUTSZ, SCNHSZ, 0, 0, 0, true,
FILHSZ, AOUTSZ, SCNHSZ, 0, 0, 0, 0, true,
alpha_ecoff_swap_filehdr_in, alpha_ecoff_swap_aouthdr_in,
alpha_ecoff_swap_scnhdr_in, alpha_ecoff_bad_format_hook,
_bfd_ecoff_set_arch_mach_hook, _bfd_ecoff_mkobject_hook,
_bfd_ecoff_styp_to_sec_flags, _bfd_ecoff_make_section_hook,
_bfd_ecoff_set_alignment_hook, _bfd_ecoff_slurp_symbol_table,
NULL, NULL
alpha_ecoff_swap_scnhdr_in, NULL,
alpha_ecoff_bad_format_hook, _bfd_ecoff_set_arch_mach_hook,
alpha_ecoff_mkobject_hook, _bfd_ecoff_styp_to_sec_flags,
_bfd_ecoff_make_section_hook, _bfd_ecoff_set_alignment_hook,
_bfd_ecoff_slurp_symbol_table,
NULL, NULL, NULL, NULL, NULL, NULL
},
/* Supported architecture. */
bfd_arch_alpha,
@ -2004,7 +2040,7 @@ const bfd_target ecoffalpha_little_vec =
(HAS_RELOC | EXEC_P | /* object flags */
HAS_LINENO | HAS_DEBUG |
HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
(SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* sect
flags */

23
bfd/coff-mips.c
View File

@ -542,7 +542,7 @@ mips_adjust_reloc_in (abfd, intern, rptr)
/* If the type is MIPS_R_IGNORE, make sure this is a reference to
the absolute section so that the reloc is ignored. */
if (intern->r_type == MIPS_R_IGNORE)
rptr->sym_ptr_ptr = bfd_abs_section.symbol_ptr_ptr;
rptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
/* If this is a MIPS_R_SWITCH reloc, or an internal MIPS_R_RELHI or
MIPS_R_RELLO reloc, we want the addend field of the BFD relocto
@ -657,7 +657,7 @@ mips_refhi_reloc (abfd,
}
ret = bfd_reloc_ok;
if (symbol->section == &bfd_und_section
if (bfd_is_und_section (symbol->section)
&& output_bfd == (bfd *) NULL)
ret = bfd_reloc_undefined;
@ -784,7 +784,7 @@ mips_gprel_reloc (abfd,
output_bfd = symbol->section->output_section->owner;
}
if (symbol->section == &bfd_und_section
if (bfd_is_und_section (symbol->section)
&& relocateable == false)
return bfd_reloc_undefined;
@ -925,7 +925,7 @@ mips_relhi_reloc (abfd,
}
ret = bfd_reloc_ok;
if (symbol->section == &bfd_und_section
if (bfd_is_und_section (symbol->section)
&& output_bfd == (bfd *) NULL)
ret = bfd_reloc_undefined;
@ -990,7 +990,7 @@ mips_rello_reloc (abfd,
symbol is not defined we don't want to do this, because we
don't want the value in the object file to incorporate the
address of the reloc. */
if (bfd_get_section (symbol) != &bfd_und_section
if (! bfd_is_und_section (bfd_get_section (symbol))
&& ! bfd_is_com_section (bfd_get_section (symbol)))
val -= (input_section->output_section->vma
+ input_section->output_offset
@ -2275,13 +2275,14 @@ static const struct ecoff_backend_data mips_ecoff_backend_data =
(unsigned (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* reloc_out */
mips_ecoff_swap_filehdr_out, mips_ecoff_swap_aouthdr_out,
mips_ecoff_swap_scnhdr_out,
FILHSZ, AOUTSZ, SCNHSZ, 0, 0, 0, true,
FILHSZ, AOUTSZ, SCNHSZ, 0, 0, 0, 0, true,
mips_ecoff_swap_filehdr_in, mips_ecoff_swap_aouthdr_in,
mips_ecoff_swap_scnhdr_in, mips_ecoff_bad_format_hook,
_bfd_ecoff_set_arch_mach_hook, _bfd_ecoff_mkobject_hook,
_bfd_ecoff_styp_to_sec_flags, _bfd_ecoff_make_section_hook,
_bfd_ecoff_set_alignment_hook, _bfd_ecoff_slurp_symbol_table,
NULL, NULL
mips_ecoff_swap_scnhdr_in, NULL,
mips_ecoff_bad_format_hook, _bfd_ecoff_set_arch_mach_hook,
_bfd_ecoff_mkobject_hook, _bfd_ecoff_styp_to_sec_flags,
_bfd_ecoff_make_section_hook, _bfd_ecoff_set_alignment_hook,
_bfd_ecoff_slurp_symbol_table,
NULL, NULL, NULL, NULL, NULL, NULL
},
/* Supported architecture. */
bfd_arch_mips,

345
bfd/coffcode.h
View File

@ -608,6 +608,7 @@ dependent COFF routines:
. unsigned int _bfd_scnhsz;
. unsigned int _bfd_symesz;
. unsigned int _bfd_auxesz;
. unsigned int _bfd_relsz;
. unsigned int _bfd_linesz;
. boolean _bfd_coff_long_filenames;
. void (*_bfd_coff_swap_filehdr_in) PARAMS ((
@ -622,6 +623,10 @@ dependent COFF routines:
. bfd *abfd,
. PTR ext,
. PTR in));
. void (*_bfd_coff_swap_reloc_in) PARAMS ((
. bfd *abfd,
. PTR ext,
. PTR in));
. boolean (*_bfd_coff_bad_format_hook) PARAMS ((
. bfd *abfd,
. PTR internal_filehdr));
@ -662,6 +667,20 @@ dependent COFF routines:
. arelent *r,
. unsigned int shrink,
. struct bfd_link_info *link_info));
. boolean (*_bfd_coff_sym_is_global) PARAMS ((
. bfd *abfd,
. struct internal_syment *));
. void (*_bfd_coff_compute_section_file_positions) PARAMS ((
. bfd *abfd));
. boolean (*_bfd_coff_relocate_section) PARAMS ((
. bfd *output_bfd,
. struct bfd_link_info *info,
. bfd *input_bfd,
. asection *input_section,
. bfd_byte *contents,
. struct internal_reloc *relocs,
. struct internal_syment *syms,
. asection **sections));
.
.} bfd_coff_backend_data;
.
@ -702,6 +721,7 @@ dependent COFF routines:
.#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz)
.#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz)
.#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz)
.#define bfd_coff_relsz(abfd) (coff_backend_info (abfd)->_bfd_relsz)
.#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz)
.#define bfd_coff_long_filenames(abfd) (coff_backend_info (abfd)->_bfd_coff_long_filenames)
.#define bfd_coff_swap_filehdr_in(abfd, i,o) \
@ -713,6 +733,9 @@ dependent COFF routines:
.#define bfd_coff_swap_scnhdr_in(abfd, i,o) \
. ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o))
.
.#define bfd_coff_swap_reloc_in(abfd, i, o) \
. ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o))
.
.#define bfd_coff_bad_format_hook(abfd, filehdr) \
. ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr))
.
@ -744,6 +767,18 @@ dependent COFF routines:
. ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\
. (abfd, section, reloc, shrink, link_info))
.
.#define bfd_coff_sym_is_global(abfd, sym)\
. ((coff_backend_info (abfd)->_bfd_coff_sym_is_global)\
. (abfd, sym))
.
.#define bfd_coff_compute_section_file_positions(abfd)\
. ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\
. (abfd))
.
.#define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\
. ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\
. (obfd, info, ibfd, o, con, rel, isyms, secs))
.
*/
/* See whether the magic number matches. */
@ -863,7 +898,6 @@ coff_mkobject (abfd)
coff->symbols = (coff_symbol_type *) NULL;
coff->conversion_table = (unsigned int *) NULL;
coff->raw_syments = (struct coff_ptr_struct *) NULL;
coff->raw_linenos = (struct lineno *) NULL;
coff->relocbase = 0;
/* make_abs_section(abfd);*/
return true;
@ -886,7 +920,6 @@ coff_mkobject_hook (abfd, filehdr, aouthdr)
coff = coff_data (abfd);
coff->sym_filepos = internal_f->f_symptr;
coff->flags = internal_f->f_flags;
/* These members communicate important constants about the symbol
table to GDB's symbol-reading code. These `constants'
@ -899,6 +932,10 @@ coff_mkobject_hook (abfd, filehdr, aouthdr)
coff->local_auxesz = AUXESZ;
coff->local_linesz = LINESZ;
obj_raw_syment_count (abfd) =
obj_conv_table_size (abfd) =
internal_f->f_nsyms;
return (PTR) coff;
}
@ -1386,6 +1423,8 @@ coff_compute_section_file_positions (abfd)
#ifndef I960
file_ptr old_sofar;
#endif
unsigned int count;
if (bfd_get_start_address (abfd))
{
/* A start address may have been added to the original file. In this
@ -1397,10 +1436,11 @@ coff_compute_section_file_positions (abfd)
sofar += AOUTSZ;
sofar += abfd->section_count * SCNHSZ;
for (current = abfd->sections;
for (current = abfd->sections, count = 1;
current != (asection *) NULL;
current = current->next)
current = current->next, ++count)
{
current->target_index = count;
/* Only deal with sections which have contents */
if (!(current->flags & SEC_HAS_CONTENTS))
@ -1454,6 +1494,7 @@ coff_compute_section_file_positions (abfd)
previous = current;
}
obj_relocbase (abfd) = sofar;
abfd->output_has_begun = true;
}
#ifndef RS6000COFF_C
@ -1538,15 +1579,11 @@ coff_write_object_contents (abfd)
bfd * abfd;
{
asection *current;
unsigned int count;
boolean hasrelocs = false;
boolean haslinno = false;
file_ptr reloc_base;
file_ptr lineno_base;
file_ptr sym_base;
file_ptr scn_base;
file_ptr data_base;
unsigned long reloc_size = 0;
unsigned long lnno_size = 0;
asection *text_sec = NULL;
@ -1558,55 +1595,22 @@ coff_write_object_contents (abfd)
bfd_set_error (bfd_error_system_call);
/* Number the output sections, starting from one on the first section
with a name which doesn't start with a *.
@@ The code doesn't make this check. Is it supposed to be done,
or isn't it?? */
count = 1;
for (current = abfd->sections; current != (asection *) NULL;
current = current->next)
{
current->target_index = count;
count++;
}
if (abfd->output_has_begun == false)
{
coff_compute_section_file_positions (abfd);
}
coff_compute_section_file_positions (abfd);
if (abfd->sections != (asection *) NULL)
{
scn_base = abfd->sections->filepos;
}
else
{
scn_base = 0;
}
if (bfd_seek (abfd, scn_base, SEEK_SET) != 0)
return false;
reloc_base = obj_relocbase (abfd);
/* Make a pass through the symbol table to count line number entries and
put them into the correct asections */
lnno_size = coff_count_linenumbers (abfd) * LINESZ;
data_base = scn_base;
/* Work out the size of the reloc and linno areas */
for (current = abfd->sections; current != NULL; current =
current->next)
{
/* We give section headers to +ve indexes */
if (current->target_index > 0)
{
reloc_size += current->reloc_count * RELSZ;
data_base += SCNHSZ;
}
}
reloc_size += current->reloc_count * RELSZ;
lineno_base = reloc_base + reloc_size;
sym_base = lineno_base + lnno_size;
@ -1615,33 +1619,27 @@ coff_write_object_contents (abfd)
for (current = abfd->sections; current != NULL; current =
current->next)
{
if (current->target_index > 0)
if (current->lineno_count)
{
if (current->lineno_count)
{
current->line_filepos = lineno_base;
current->moving_line_filepos = lineno_base;
lineno_base += current->lineno_count * LINESZ;
}
else
{
current->line_filepos = 0;
}
if (current->reloc_count)
{
current->rel_filepos = reloc_base;
reloc_base += current->reloc_count * RELSZ;
}
else
{
current->rel_filepos = 0;
}
current->line_filepos = lineno_base;
current->moving_line_filepos = lineno_base;
lineno_base += current->lineno_count * LINESZ;
}
else
{
current->line_filepos = 0;
}
if (current->reloc_count)
{
current->rel_filepos = reloc_base;
reloc_base += current->reloc_count * RELSZ;
}
else
{
current->rel_filepos = 0;
}
}
/* Write section headers to the file. */
internal_f.f_nscns = 0;
if (bfd_seek (abfd,
@ -1652,90 +1650,81 @@ coff_write_object_contents (abfd)
return false;
{
#if 0
unsigned int pad = abfd->flags & D_PAGED ? data_base : 0;
#endif
unsigned int pad = 0;
for (current = abfd->sections;
current != NULL;
current = current->next)
{
struct internal_scnhdr section;
if (current->target_index > 0)
{
internal_f.f_nscns++;
strncpy (&(section.s_name[0]), current->name, 8);
internal_f.f_nscns++;
strncpy (&(section.s_name[0]), current->name, 8);
#ifdef _LIB
/* Always set s_vaddr of .lib to 0. This is right for SVR3.2
/* Always set s_vaddr of .lib to 0. This is right for SVR3.2
Ian Taylor <ian@cygnus.com>. */
if (strcmp (current->name, _LIB) == 0)
section.s_vaddr = 0;
else
if (strcmp (current->name, _LIB) == 0)
section.s_vaddr = 0;
else
#endif
section.s_vaddr = current->lma + pad;
section.s_paddr = current->lma + pad;
section.s_size = current->_raw_size - pad;
/*
If this section has no size or is unloadable then the scnptr
will be 0 too
*/
if (current->_raw_size - pad == 0 ||
(current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)
{
section.s_scnptr = 0;
}
else
{
section.s_scnptr = current->filepos;
}
section.s_relptr = current->rel_filepos;
section.s_lnnoptr = current->line_filepos;
section.s_nreloc = current->reloc_count;
section.s_nlnno = current->lineno_count;
if (current->reloc_count != 0)
hasrelocs = true;
if (current->lineno_count != 0)
haslinno = true;
section.s_vaddr = current->lma;
section.s_paddr = current->lma;
section.s_size = current->_raw_size;
/*
If this section has no size or is unloadable then the scnptr
will be 0 too
*/
if (current->_raw_size == 0 ||
(current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)
{
section.s_scnptr = 0;
}
else
{
section.s_scnptr = current->filepos;
}
section.s_relptr = current->rel_filepos;
section.s_lnnoptr = current->line_filepos;
section.s_nreloc = current->reloc_count;
section.s_nlnno = current->lineno_count;
if (current->reloc_count != 0)
hasrelocs = true;
if (current->lineno_count != 0)
haslinno = true;
section.s_flags = sec_to_styp_flags (current->name, current->flags);
section.s_flags = sec_to_styp_flags (current->name, current->flags);
if (!strcmp (current->name, _TEXT))
{
text_sec = current;
}
else if (!strcmp (current->name, _DATA))
{
data_sec = current;
if (!strcmp (current->name, _TEXT))
{
text_sec = current;
}
else if (!strcmp (current->name, _DATA))
{
data_sec = current;
#ifdef TWO_DATA_SECS
}
else if (!strcmp (current->name, ".data2"))
{
data_sec = current;
}
else if (!strcmp (current->name, ".data2"))
{
data_sec = current;
#endif /* TWO_DATA_SECS */
}
else if (!strcmp (current->name, _BSS))
{
bss_sec = current;
}
}
else if (!strcmp (current->name, _BSS))
{
bss_sec = current;
}
#ifdef I960
section.s_align = (current->alignment_power
? 1 << current->alignment_power
: 0);
section.s_align = (current->alignment_power
? 1 << current->alignment_power
: 0);
#endif
{
SCNHDR buff;
{
SCNHDR buff;
coff_swap_scnhdr_out (abfd, &section, &buff);
if (bfd_write ((PTR) (&buff), 1, SCNHSZ, abfd) != SCNHSZ)
return false;
coff_swap_scnhdr_out (abfd, &section, &buff);
if (bfd_write ((PTR) (&buff), 1, SCNHSZ, abfd) != SCNHSZ)
return false;
}
pad = 0;
}
}
}
}
@ -1752,7 +1741,7 @@ coff_write_object_contents (abfd)
*/
internal_f.f_timdat = 0;
if (bfd_get_symcount (abfd) != 0)
if (obj_raw_syment_count (abfd) != 0)
internal_f.f_symptr = sym_base;
else
internal_f.f_symptr = 0;
@ -1768,7 +1757,7 @@ coff_write_object_contents (abfd)
internal_f.f_flags |= F_RELFLG;
if (!haslinno)
internal_f.f_flags |= F_LNNO;
if (0 == bfd_get_symcount (abfd))
if (obj_raw_syment_count (abfd) == 0)
internal_f.f_flags |= F_LSYMS;
if (abfd->flags & EXEC_P)
internal_f.f_flags |= F_EXEC;
@ -1893,7 +1882,7 @@ coff_write_object_contents (abfd)
}
internal_a.entry = bfd_get_start_address (abfd);
internal_f.f_nsyms = bfd_get_symcount (abfd);
internal_f.f_nsyms = obj_raw_syment_count (abfd);
/* now write them */
if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
@ -2097,18 +2086,20 @@ coff_slurp_symbol_table (abfd)
} /* on error */
/* Allocate enough room for all the symbols in cached form */
cached_area =
(coff_symbol_type *)
bfd_alloc (abfd, (size_t) (bfd_get_symcount (abfd) * sizeof (coff_symbol_type)));
cached_area = ((coff_symbol_type *)
bfd_alloc (abfd,
(obj_raw_syment_count (abfd)
* sizeof (coff_symbol_type))));
if (cached_area == NULL)
{
bfd_set_error (bfd_error_no_memory);
return false;
} /* on error */
table_ptr =
(unsigned int *)
bfd_alloc (abfd, (size_t) (bfd_get_symcount (abfd) * sizeof (unsigned int)));
table_ptr = ((unsigned int *)
bfd_alloc (abfd,
(obj_raw_syment_count (abfd)
* sizeof (unsigned int))));
if (table_ptr == NULL)
{
@ -2118,7 +2109,7 @@ coff_slurp_symbol_table (abfd)
else
{
coff_symbol_type *dst = cached_area;
unsigned int last_native_index = bfd_get_symcount (abfd);
unsigned int last_native_index = obj_raw_syment_count (abfd);
unsigned int this_index = 0;
while (this_index < last_native_index)
{
@ -2324,7 +2315,6 @@ coff_slurp_symbol_table (abfd)
obj_symbols (abfd) = cached_area;
obj_raw_syments (abfd) = native_symbols;
obj_conv_table_size (abfd) = bfd_get_symcount (abfd);
bfd_get_symcount (abfd) = number_of_symbols;
obj_convert (abfd) = table_ptr;
/* Slurp the line tables for each section too */
@ -2340,6 +2330,43 @@ coff_slurp_symbol_table (abfd)
return true;
} /* coff_slurp_symbol_table() */
/* Check whether a symbol is globally visible. This is used by the
COFF backend linker code in cofflink.c, since a couple of targets
have globally visible symbols which are not class C_EXT. This
function need not handle the case of n_class == C_EXT. */
#undef OTHER_GLOBAL_CLASS
#ifdef I960
#define OTHER_GLOBAL_CLASS C_LEAFEXT
#endif
#ifdef RS6000COFF_C
#define OTHER_GLOBAL_CLASS C_HIDEXT
#endif
#ifdef OTHER_GLOBAL_CLASS
static boolean
coff_sym_is_global (abfd, syment)
bfd *abfd;
struct internal_syment *syment;
{
if (syment->n_sclass == OTHER_GLOBAL_CLASS)
return true;
return false;
}
#undef OTHER_GLOBAL_CLASS
#else /* ! defined (OTHER_GLOBAL_CLASS) */
/* sym_is_global should not be defined if it has nothing to do. */
#define coff_sym_is_global 0
#endif /* ! defined (OTHER_GLOBAL_CLASS) */
/*
SUBSUBSECTION
Reading relocations
@ -2433,7 +2460,7 @@ coff_slurp_reloc_table (abfd, asect, symbols)
cache_ptr = reloc_cache + idx;
src = native_relocs + idx;
bfd_swap_reloc_in (abfd, src, &dst);
coff_swap_reloc_in (abfd, src, &dst);
RELOC_PROCESSING (cache_ptr, &dst, symbols, abfd, asect);
#else
@ -2444,7 +2471,7 @@ coff_slurp_reloc_table (abfd, asect, symbols)
cache_ptr = reloc_cache + idx;
src = native_relocs + idx;
bfd_swap_reloc_in (abfd, src, &dst);
coff_swap_reloc_in (abfd, src, &dst);
cache_ptr->address = dst.r_vaddr;
@ -2572,6 +2599,19 @@ dummy_reloc16_extra_cases (abfd, link_info, link_order, reloc, data, src_ptr,
}
#endif
/* If coff_relocate_section is defined, we can use the optimized COFF
backend linker. Otherwise we must continue to use the old linker. */
#ifdef coff_relocate_section
#define coff_bfd_link_hash_table_create _bfd_coff_link_hash_table_create
#define coff_bfd_link_add_symbols _bfd_coff_link_add_symbols
#define coff_bfd_final_link _bfd_coff_final_link
#else /* ! defined (coff_relocate_section) */
#define coff_relocate_section NULL
#define coff_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
#define coff_bfd_link_add_symbols _bfd_generic_link_add_symbols
#define coff_bfd_final_link _bfd_generic_final_link
#endif /* ! defined (coff_relocate_section) */
static CONST bfd_coff_backend_data bfd_coff_std_swap_table =
{
coff_swap_aux_in, coff_swap_sym_in, coff_swap_lineno_in,
@ -2579,17 +2619,19 @@ static CONST bfd_coff_backend_data bfd_coff_std_swap_table =
coff_swap_lineno_out, coff_swap_reloc_out,
coff_swap_filehdr_out, coff_swap_aouthdr_out,
coff_swap_scnhdr_out,
FILHSZ, AOUTSZ, SCNHSZ, SYMESZ, AUXESZ, LINESZ,
FILHSZ, AOUTSZ, SCNHSZ, SYMESZ, AUXESZ, RELSZ, LINESZ,
#ifdef COFF_LONG_FILENAMES
true,
#else
false,
#endif
coff_swap_filehdr_in, coff_swap_aouthdr_in, coff_swap_scnhdr_in,
coff_bad_format_hook, coff_set_arch_mach_hook, coff_mkobject_hook,
styp_to_sec_flags, coff_make_section_hook, coff_set_alignment_hook,
coff_slurp_symbol_table, symname_in_debug_hook,
coff_reloc16_extra_cases, coff_reloc16_estimate
coff_swap_reloc_in, coff_bad_format_hook, coff_set_arch_mach_hook,
coff_mkobject_hook, styp_to_sec_flags, coff_make_section_hook,
coff_set_alignment_hook, coff_slurp_symbol_table, symname_in_debug_hook,
coff_reloc16_extra_cases, coff_reloc16_estimate,
coff_sym_is_global, coff_compute_section_file_positions,
coff_relocate_section
};
#define coff_close_and_cleanup _bfd_generic_close_and_cleanup
@ -2613,6 +2655,3 @@ static CONST bfd_coff_backend_data bfd_coff_std_swap_table =
#define coff_bfd_get_relocated_section_contents \
bfd_generic_get_relocated_section_contents
#define coff_bfd_relax_section bfd_generic_relax_section
#define coff_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
#define coff_bfd_link_add_symbols _bfd_generic_link_add_symbols
#define coff_bfd_final_link _bfd_generic_final_link

106
bfd/coffgen.c
View File

@ -180,10 +180,7 @@ coff_real_object_p (abfd, nscns, internal_f, internal_a)
if ((internal_f->f_flags & F_EXEC) != 0)
abfd->flags |= D_PAGED;
obj_raw_syment_count (abfd) =
obj_conv_table_size (abfd) =
bfd_get_symcount(abfd) =
internal_f->f_nsyms;
bfd_get_symcount(abfd) = internal_f->f_nsyms;
if (internal_f->f_nsyms)
abfd->flags |= HAS_SYMS;
@ -343,42 +340,53 @@ coff_get_symtab (abfd, alocation)
int
coff_count_linenumbers (abfd)
bfd *abfd;
bfd *abfd;
{
unsigned int limit = bfd_get_symcount(abfd);
unsigned int i;
unsigned int limit = bfd_get_symcount(abfd);
unsigned int i;
int total = 0;
asymbol **p;
{
asection *s = abfd->sections->output_section;
while (s) {
BFD_ASSERT(s->lineno_count == 0);
s = s->next;
}
}
asymbol **p;
asection *s;
for (p = abfd->outsymbols, i = 0; i < limit; i++, p++) {
asymbol *q_maybe = *p;
if (bfd_asymbol_flavour(q_maybe) == bfd_target_coff_flavour) {
coff_symbol_type *q = coffsymbol(q_maybe);
if (q->lineno) {
/*
This symbol has a linenumber, increment the owning
section's linenumber count
*/
alent *l = q->lineno;
q->symbol.section->output_section->lineno_count++;
total ++;
l++;
while (l->line_number) {
total ++;
q->symbol.section->output_section->lineno_count++;
l++;
}
}
if (limit == 0)
{
/* This may be from the backend linker, in which case the
lineno_count in the sections is correct. */
for (s = abfd->sections; s != NULL; s = s->next)
total += s->lineno_count;
return total;
}
}
for (s = abfd->sections; s != NULL; s = s->next)
BFD_ASSERT (s->lineno_count == 0);
for (p = abfd->outsymbols, i = 0; i < limit; i++, p++)
{
asymbol *q_maybe = *p;
if (bfd_asymbol_flavour (q_maybe) == bfd_target_coff_flavour)
{
coff_symbol_type *q = coffsymbol (q_maybe);
if (q->lineno != NULL)
{
/* This symbol has line numbers. Increment the owning
section's linenumber count. */
alent *l = q->lineno;
++q->symbol.section->output_section->lineno_count;
++total;
++l;
while (l->line_number != 0)
{
++total;
++q->symbol.section->output_section->lineno_count;
++l;
}
}
}
}
return total;
}
@ -920,8 +928,6 @@ coff_write_symbols (abfd)
}
}
bfd_get_symcount (abfd) = written;
/* Now write out strings */
if (string_size != 0)
@ -1137,9 +1143,12 @@ coff_pointerize_aux (abfd, table_base, type, class, auxent)
/* Otherwise patch up */
#define N_TMASK coff_data (abfd)->local_n_tmask
#define N_BTSHFT coff_data (abfd)->local_n_btshft
if (ISFCN(type) || ISTAG(class) || class == C_BLOCK) {
auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p = table_base +
auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l;
if ((ISFCN(type) || ISTAG(class) || class == C_BLOCK)
&& auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l > 0)
{
auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p =
(table_base
+ auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l);
auxent->fix_end = 1;
}
/* A negative tagndx is meaningless, but the SCO 3.2v4 cc can
@ -1276,7 +1285,9 @@ coff_get_normalized_symtab (abfd)
if (obj_raw_syments(abfd) != (combined_entry_type *)NULL) {
return obj_raw_syments(abfd);
}
if ((size = bfd_get_symcount(abfd) * sizeof(combined_entry_type)) == 0) {
size = obj_raw_syment_count (abfd) * sizeof (combined_entry_type);
if (size == 0)
{
bfd_set_error (bfd_error_no_symbols);
return (NULL);
}
@ -1287,10 +1298,10 @@ coff_get_normalized_symtab (abfd)
bfd_set_error (bfd_error_no_memory);
return NULL;
}
internal_end = internal + bfd_get_symcount(abfd);
internal_end = internal + obj_raw_syment_count (abfd);
symesz = bfd_coff_symesz (abfd);
raw_size = bfd_get_symcount(abfd) * symesz;
raw_size = obj_raw_syment_count (abfd) * symesz;
raw = bfd_alloc(abfd,raw_size);
if (!raw)
{
@ -1302,7 +1313,7 @@ coff_get_normalized_symtab (abfd)
|| bfd_read(raw, raw_size, 1, abfd) != raw_size)
return (NULL);
/* mark the end of the symbols */
raw_end = (char *) raw + bfd_get_symcount(abfd) * symesz;
raw_end = (char *) raw + obj_raw_syment_count (abfd) * symesz;
/*
FIXME SOMEDAY. A string table size of zero is very weird, but
probably possible. If one shows up, it will probably kill us.
@ -1575,6 +1586,11 @@ coff_print_symbol (abfd, filep, symbol, how)
auxp->u.auxent.x_sym.x_misc.x_lnsz.x_lnno,
auxp->u.auxent.x_sym.x_misc.x_lnsz.x_size,
tagndx);
if (auxp->fix_end)
fprintf (file, " endndx %ld",
((long)
(auxp->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p
- root)));
break;
}
}

2006
bfd/cofflink.c Normal file
View File

File diff suppressed because it is too large Load Diff

2
bfd/configure.in
View File

@ -135,7 +135,7 @@ do
case "$vec" in
# This list is alphabetized to make it easy to compare
# with the two vector lists in targets.c.
a29kcoff_big_vec) tb="$tb coff-a29k.o" ;;
a29kcoff_big_vec) tb="$tb coff-a29k.o cofflink.o" ;;
a_out_adobe_vec) tb="$tb aout-adobe.o aout32.o stab-syms.o" ;;
aout0_big_vec) tb="$tb aout0.o aout32.o stab-syms.o" ;;
aout_mips_big_vec) tb="$tb mipsbsd.o aout32.o stab-syms.o" ;;

84
bfd/libcoff-in.h
View File

@ -18,6 +18,7 @@ You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "bfdlink.h"
/* Object file tdata; access macros */
@ -31,12 +32,10 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#define obj_raw_syment_count(bfd) (coff_data(bfd)->raw_syment_count)
#define obj_convert(bfd) (coff_data(bfd)->conversion_table)
#define obj_conv_table_size(bfd) (coff_data(bfd)->conv_table_size)
#if CFILE_STUFF
#define obj_symbol_slew(bfd) (coff_data(bfd)->symbol_index_slew)
#else
#define obj_symbol_slew(bfd) 0
#endif
#define obj_coff_external_syms(bfd) (coff_data (bfd)->external_syms)
#define obj_coff_strings(bfd) (coff_data (bfd)->strings)
#define obj_coff_sym_hashes(bfd) (coff_data (bfd)->sym_hashes)
/* `Tdata' information kept for COFF files. */
@ -47,13 +46,8 @@ typedef struct coff_tdata
int conv_table_size;
file_ptr sym_filepos;
long symbol_index_slew; /* used during read to mark whether a
C_FILE symbol as been added. */
struct coff_ptr_struct *raw_syments;
struct lineno *raw_linenos;
unsigned int raw_syment_count;
unsigned short flags;
/* These are only valid once writing has begun */
long int relocbase;
@ -68,14 +62,71 @@ typedef struct coff_tdata
unsigned local_symesz;
unsigned local_auxesz;
unsigned local_linesz;
/* Used by the COFF backend linker. */
PTR external_syms;
char *strings;
struct coff_link_hash_entry **sym_hashes;
} coff_data_type;
/* We take the address of the first element of a asymbol to ensure that the
* macro is only ever applied to an asymbol. */
#define coffsymbol(asymbol) ((coff_symbol_type *)(&((asymbol)->the_bfd)))
/* COFF linker hash table entries. */
struct coff_link_hash_entry
{
struct bfd_link_hash_entry root;
/* Symbol index in output file. Set to -1 initially. Set to -2 if
there is a reloc against this symbol. */
long indx;
/* Symbol type. */
unsigned short type;
/* Symbol class. */
unsigned char class;
/* Number of auxiliary entries. */
char numaux;
/* BFD to take auxiliary entries from. */
bfd *auxbfd;
/* Pointer to array of auxiliary entries, if any. */
union internal_auxent *aux;
};
/* COFF linker hash table. */
struct coff_link_hash_table
{
struct bfd_link_hash_table root;
};
/* Look up an entry in a COFF linker hash table. */
#define coff_link_hash_lookup(table, string, create, copy, follow) \
((struct coff_link_hash_entry *) \
bfd_link_hash_lookup (&(table)->root, (string), (create), \
(copy), (follow)))
/* Traverse a COFF linker hash table. */
#define coff_link_hash_traverse(table, func, info) \
(bfd_link_hash_traverse \
(&(table)->root, \
(boolean (*) PARAMS ((struct bfd_link_hash_entry *, PTR))) (func), \
(info)))
/* Get the COFF linker hash table from a link_info structure. */
#define coff_hash_table(p) ((struct coff_link_hash_table *) ((p)->hash))
/* Functions in coffgen.c. */
extern bfd_target *coff_object_p PARAMS ((bfd *));
extern const bfd_target *coff_object_p PARAMS ((bfd *));
extern struct sec *coff_section_from_bfd_index PARAMS ((bfd *, int));
extern long coff_get_symtab_upper_bound PARAMS ((bfd *));
extern long coff_get_symtab PARAMS ((bfd *, asymbol **));
@ -83,7 +134,7 @@ extern int coff_count_linenumbers PARAMS ((bfd *));
extern struct coff_symbol_struct *coff_symbol_from PARAMS ((bfd *, asymbol *));
extern boolean coff_renumber_symbols PARAMS ((bfd *));
extern void coff_mangle_symbols PARAMS ((bfd *));
extern void coff_write_symbols PARAMS ((bfd *));
extern boolean coff_write_symbols PARAMS ((bfd *));
extern boolean coff_write_linenumbers PARAMS ((bfd *));
extern alent *coff_get_lineno PARAMS ((bfd *, asymbol *));
extern asymbol *coff_section_symbol PARAMS ((bfd *, char *));
@ -116,5 +167,14 @@ extern void bfd_perform_slip PARAMS ((bfd *abfd, unsigned int slip,
asection *input_section,
bfd_vma val));
/* Functions in cofflink.c. */
extern struct bfd_link_hash_table *_bfd_coff_link_hash_table_create
PARAMS ((bfd *));
extern boolean _bfd_coff_link_add_symbols
PARAMS ((bfd *, struct bfd_link_info *));
extern boolean _bfd_coff_final_link
PARAMS ((bfd *, struct bfd_link_info *));
/* And more taken from the source .. */

115
bfd/libcoff.h
View File

@ -18,6 +18,7 @@ You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "bfdlink.h"
/* Object file tdata; access macros */
@ -31,12 +32,10 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#define obj_raw_syment_count(bfd) (coff_data(bfd)->raw_syment_count)
#define obj_convert(bfd) (coff_data(bfd)->conversion_table)
#define obj_conv_table_size(bfd) (coff_data(bfd)->conv_table_size)
#if CFILE_STUFF
#define obj_symbol_slew(bfd) (coff_data(bfd)->symbol_index_slew)
#else
#define obj_symbol_slew(bfd) 0
#endif
#define obj_coff_external_syms(bfd) (coff_data (bfd)->external_syms)
#define obj_coff_strings(bfd) (coff_data (bfd)->strings)
#define obj_coff_sym_hashes(bfd) (coff_data (bfd)->sym_hashes)
/* `Tdata' information kept for COFF files. */
@ -47,13 +46,8 @@ typedef struct coff_tdata
int conv_table_size;
file_ptr sym_filepos;
long symbol_index_slew; /* used during read to mark whether a
C_FILE symbol as been added. */
struct coff_ptr_struct *raw_syments;
struct lineno *raw_linenos;
unsigned int raw_syment_count;
unsigned short flags;
/* These are only valid once writing has begun */
long int relocbase;
@ -68,12 +62,69 @@ typedef struct coff_tdata
unsigned local_symesz;
unsigned local_auxesz;
unsigned local_linesz;
/* Used by the COFF backend linker. */
PTR external_syms;
char *strings;
struct coff_link_hash_entry **sym_hashes;
} coff_data_type;
/* We take the address of the first element of a asymbol to ensure that the
* macro is only ever applied to an asymbol. */
#define coffsymbol(asymbol) ((coff_symbol_type *)(&((asymbol)->the_bfd)))
/* COFF linker hash table entries. */
struct coff_link_hash_entry
{
struct bfd_link_hash_entry root;
/* Symbol index in output file. Set to -1 initially. Set to -2 if
there is a reloc against this symbol. */
long indx;
/* Symbol type. */
unsigned short type;
/* Symbol class. */
unsigned char class;
/* Number of auxiliary entries. */
char numaux;
/* BFD to take auxiliary entries from. */
bfd *auxbfd;
/* Pointer to array of auxiliary entries, if any. */
union internal_auxent *aux;
};
/* COFF linker hash table. */
struct coff_link_hash_table
{
struct bfd_link_hash_table root;
};
/* Look up an entry in a COFF linker hash table. */
#define coff_link_hash_lookup(table, string, create, copy, follow) \
((struct coff_link_hash_entry *) \
bfd_link_hash_lookup (&(table)->root, (string), (create), \
(copy), (follow)))
/* Traverse a COFF linker hash table. */
#define coff_link_hash_traverse(table, func, info) \
(bfd_link_hash_traverse \
(&(table)->root, \
(boolean (*) PARAMS ((struct bfd_link_hash_entry *, PTR))) (func), \
(info)))
/* Get the COFF linker hash table from a link_info structure. */
#define coff_hash_table(p) ((struct coff_link_hash_table *) ((p)->hash))
/* Functions in coffgen.c. */
extern const bfd_target *coff_object_p PARAMS ((bfd *));
extern struct sec *coff_section_from_bfd_index PARAMS ((bfd *, int));
@ -116,6 +167,15 @@ extern void bfd_perform_slip PARAMS ((bfd *abfd, unsigned int slip,
asection *input_section,
bfd_vma val));
/* Functions in cofflink.c. */
extern struct bfd_link_hash_table *_bfd_coff_link_hash_table_create
PARAMS ((bfd *));
extern boolean _bfd_coff_link_add_symbols
PARAMS ((bfd *, struct bfd_link_info *));
extern boolean _bfd_coff_final_link
PARAMS ((bfd *, struct bfd_link_info *));
/* And more taken from the source .. */
typedef struct coff_ptr_struct
@ -232,6 +292,7 @@ typedef struct
unsigned int _bfd_scnhsz;
unsigned int _bfd_symesz;
unsigned int _bfd_auxesz;
unsigned int _bfd_relsz;
unsigned int _bfd_linesz;
boolean _bfd_coff_long_filenames;
void (*_bfd_coff_swap_filehdr_in) PARAMS ((
@ -246,6 +307,10 @@ typedef struct
bfd *abfd,
PTR ext,
PTR in));
void (*_bfd_coff_swap_reloc_in) PARAMS ((
bfd *abfd,
PTR ext,
PTR in));
boolean (*_bfd_coff_bad_format_hook) PARAMS ((
bfd *abfd,
PTR internal_filehdr));
@ -286,6 +351,20 @@ typedef struct
arelent *r,
unsigned int shrink,
struct bfd_link_info *link_info));
boolean (*_bfd_coff_sym_is_global) PARAMS ((
bfd *abfd,
struct internal_syment *));
void (*_bfd_coff_compute_section_file_positions) PARAMS ((
bfd *abfd));
boolean (*_bfd_coff_relocate_section) PARAMS ((
bfd *output_bfd,
struct bfd_link_info *info,
bfd *input_bfd,
asection *input_section,
bfd_byte *contents,
struct internal_reloc *relocs,
struct internal_syment *syms,
asection **sections));
} bfd_coff_backend_data;
@ -326,6 +405,7 @@ typedef struct
#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz)
#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz)
#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz)
#define bfd_coff_relsz(abfd) (coff_backend_info (abfd)->_bfd_relsz)
#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz)
#define bfd_coff_long_filenames(abfd) (coff_backend_info (abfd)->_bfd_coff_long_filenames)
#define bfd_coff_swap_filehdr_in(abfd, i,o) \
@ -337,6 +417,9 @@ typedef struct
#define bfd_coff_swap_scnhdr_in(abfd, i,o) \
((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o))
#define bfd_coff_swap_reloc_in(abfd, i, o) \
((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o))
#define bfd_coff_bad_format_hook(abfd, filehdr) \
((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr))
@ -368,3 +451,15 @@ typedef struct
((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\
(abfd, section, reloc, shrink, link_info))
#define bfd_coff_sym_is_global(abfd, sym)\
((coff_backend_info (abfd)->_bfd_coff_sym_is_global)\
(abfd, sym))
#define bfd_coff_compute_section_file_positions(abfd)\
((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\
(abfd))
#define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\
((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\
(obfd, info, ibfd, o, con, rel, isyms, secs))