/* Generic symbol-table support for the BFD library.
Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- 2000, 2001, 2002, 2003
+ 2000, 2001, 2002, 2003, 2004, 2007
Free Software Foundation, Inc.
Written by Cygnus Support.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
/*
SECTION
| if (storage_needed == 0)
| return;
|
-| symbol_table = (asymbol **) xmalloc (storage_needed);
+| symbol_table = xmalloc (storage_needed);
| ...
| number_of_symbols =
| bfd_canonicalize_symtab (abfd, symbol_table);
| new->value = 0x12345;
|
| ptrs[0] = new;
-| ptrs[1] = (asymbol *)0;
+| ptrs[1] = 0;
|
| bfd_set_symtab (abfd, ptrs, 1);
| bfd_close (abfd);
| nm foo
| 00012345 A dummy_symbol
- Many formats cannot represent arbitary symbol information; for
+ Many formats cannot represent arbitrary symbol information; for
instance, the <<a.out>> object format does not allow an
- arbitary number of sections. A symbol pointing to a section
+ arbitrary number of sections. A symbol pointing to a section
which is not one of <<.text>>, <<.data>> or <<.bss>> cannot
be described.
CODE_FRAGMENT
.
-.typedef struct symbol_cache_entry
+.typedef struct bfd_symbol
.{
. {* A pointer to the BFD which owns the symbol. This information
. is necessary so that a back end can work out what additional
. <<BSF_LOCAL>>, <<BSF_FORT_COMM>>, <<BSF_UNDEFINED>> or
. <<BSF_GLOBAL>>. *}
.
-. {* The symbol is a debugging record. The value has an arbitary
+. {* The symbol is a debugging record. The value has an arbitrary
. meaning, unless BSF_DEBUGGING_RELOC is also set. *}
.#define BSF_DEBUGGING 0x08
.
. {* This symbol is thread local. Used in ELF. *}
.#define BSF_THREAD_LOCAL 0x40000
.
+. {* This symbol represents a complex relocation expression,
+. with the expression tree serialized in the symbol name. *}
+.#define BSF_RELC 0x80000
+.
+. {* This symbol represents a signed complex relocation expression,
+. with the expression tree serialized in the symbol name. *}
+.#define BSF_SRELC 0x100000
+.
. flagword flags;
.
. {* A pointer to the section to which this symbol is
. relative. This will always be non NULL, there are special
. sections for undefined and absolute symbols. *}
-. struct sec *section;
+. struct bfd_section *section;
.
. {* Back end special data. *}
. union
. {
-. PTR p;
+. void *p;
. bfd_vma i;
. }
. udata;
.
*/
-#include "bfd.h"
#include "sysdep.h"
+#include "bfd.h"
#include "libbfd.h"
#include "safe-ctype.h"
#include "bfdlink.h"
#include "aout/stab_gnu.h"
-static char coff_section_type PARAMS ((const char *));
-static char decode_section_type PARAMS ((const struct sec *));
-static int cmpindexentry PARAMS ((const PTR, const PTR));
-
/*
DOCDD
INODE
*/
bfd_boolean
-bfd_is_local_label (abfd, sym)
- bfd *abfd;
- asymbol *sym;
+bfd_is_local_label (bfd *abfd, asymbol *sym)
{
/* The BSF_SECTION_SYM check is needed for IA-64, where every label that
starts with '.' is local. This would accidentally catch section names
if we didn't reject them here. */
- if ((sym->flags & (BSF_GLOBAL | BSF_WEAK | BSF_SECTION_SYM)) != 0)
+ if ((sym->flags & (BSF_GLOBAL | BSF_WEAK | BSF_FILE | BSF_SECTION_SYM)) != 0)
return FALSE;
if (sym->name == NULL)
return FALSE;
local label.
.#define bfd_is_local_label_name(abfd, name) \
-. BFD_SEND (abfd, _bfd_is_local_label_name, (abfd, name))
+. BFD_SEND (abfd, _bfd_is_local_label_name, (abfd, name))
+.
+*/
+
+/*
+FUNCTION
+ bfd_is_target_special_symbol
+
+SYNOPSIS
+ bfd_boolean bfd_is_target_special_symbol (bfd *abfd, asymbol *sym);
+
+DESCRIPTION
+ Return TRUE iff a symbol @var{sym} in the BFD @var{abfd} is something
+ special to the particular target represented by the BFD. Such symbols
+ should normally not be mentioned to the user.
+
+.#define bfd_is_target_special_symbol(abfd, sym) \
+. BFD_SEND (abfd, _bfd_is_target_special_symbol, (abfd, sym))
.
*/
including the NULL.
.#define bfd_canonicalize_symtab(abfd, location) \
-. BFD_SEND (abfd, _bfd_canonicalize_symtab,\
-. (abfd, location))
+. BFD_SEND (abfd, _bfd_canonicalize_symtab, (abfd, location))
.
*/
bfd_set_symtab
SYNOPSIS
- bfd_boolean bfd_set_symtab (bfd *abfd, asymbol **location, unsigned int count);
+ bfd_boolean bfd_set_symtab
+ (bfd *abfd, asymbol **location, unsigned int count);
DESCRIPTION
Arrange that when the output BFD @var{abfd} is closed,
*/
bfd_boolean
-bfd_set_symtab (abfd, location, symcount)
- bfd *abfd;
- asymbol **location;
- unsigned int symcount;
+bfd_set_symtab (bfd *abfd, asymbol **location, unsigned int symcount)
{
- if ((abfd->format != bfd_object) || (bfd_read_p (abfd)))
+ if (abfd->format != bfd_object || bfd_read_p (abfd))
{
bfd_set_error (bfd_error_invalid_operation);
return FALSE;
bfd_print_symbol_vandf
SYNOPSIS
- void bfd_print_symbol_vandf (bfd *abfd, PTR file, asymbol *symbol);
+ void bfd_print_symbol_vandf (bfd *abfd, void *file, asymbol *symbol);
DESCRIPTION
Print the value and flags of the @var{symbol} supplied to the
stream @var{file}.
*/
void
-bfd_print_symbol_vandf (abfd, arg, symbol)
- bfd *abfd;
- PTR arg;
- asymbol *symbol;
+bfd_print_symbol_vandf (bfd *abfd, void *arg, asymbol *symbol)
{
- FILE *file = (FILE *) arg;
+ FILE *file = arg;
flagword type = symbol->flags;
- if (symbol->section != (asection *) NULL)
- bfd_fprintf_vma (abfd, file,
- symbol->value + symbol->section->vma);
+ if (symbol->section != NULL)
+ bfd_fprintf_vma (abfd, file, symbol->value + symbol->section->vma);
else
bfd_fprintf_vma (abfd, file, symbol->value);
information, and will cause problems later on.
.#define bfd_make_empty_symbol(abfd) \
-. BFD_SEND (abfd, _bfd_make_empty_symbol, (abfd))
+. BFD_SEND (abfd, _bfd_make_empty_symbol, (abfd))
.
*/
_bfd_generic_make_empty_symbol
SYNOPSIS
- asymbol * _bfd_generic_make_empty_symbol (bfd *);
+ asymbol *_bfd_generic_make_empty_symbol (bfd *);
DESCRIPTION
Create a new <<asymbol>> structure for the BFD @var{abfd}
*/
asymbol *
-_bfd_generic_make_empty_symbol (abfd)
- bfd *abfd;
+_bfd_generic_make_empty_symbol (bfd *abfd)
{
bfd_size_type amt = sizeof (asymbol);
- asymbol *new = (asymbol *) bfd_zalloc (abfd, amt);
+ asymbol *new = bfd_zalloc (abfd, amt);
if (new)
new->the_bfd = abfd;
return new;
yet to be worked out.
.#define bfd_make_debug_symbol(abfd,ptr,size) \
-. BFD_SEND (abfd, _bfd_make_debug_symbol, (abfd, ptr, size))
+. BFD_SEND (abfd, _bfd_make_debug_symbol, (abfd, ptr, size))
.
*/
't' as well as .text */
static char
-coff_section_type (s)
- const char *s;
+coff_section_type (const char *s)
{
const struct section_to_type *t;
we could perhaps obsolete coff_section_type. */
static char
-decode_section_type (section)
- const struct sec *section;
+decode_section_type (const struct bfd_section *section)
{
if (section->flags & SEC_CODE)
return 't';
}
if (section->flags & SEC_DEBUGGING)
return 'N';
+ if ((section->flags & SEC_HAS_CONTENTS) && (section->flags & SEC_READONLY))
+ return 'n';
return '?';
}
int bfd_decode_symclass (asymbol *symbol);
*/
int
-bfd_decode_symclass (symbol)
- asymbol *symbol;
+bfd_decode_symclass (asymbol *symbol)
{
char c;
- if (bfd_is_com_section (symbol->section))
+ if (symbol->section && bfd_is_com_section (symbol->section))
return 'C';
if (bfd_is_und_section (symbol->section))
{
*/
bfd_boolean
-bfd_is_undefined_symclass (symclass)
- int symclass;
+bfd_is_undefined_symclass (int symclass)
{
return symclass == 'U' || symclass == 'w' || symclass == 'v';
}
*/
void
-bfd_symbol_info (symbol, ret)
- asymbol *symbol;
- symbol_info *ret;
+bfd_symbol_info (asymbol *symbol, symbol_info *ret)
{
ret->type = bfd_decode_symclass (symbol);
bfd_copy_private_symbol_data
SYNOPSIS
- bfd_boolean bfd_copy_private_symbol_data (bfd *ibfd, asymbol *isym, bfd *obfd, asymbol *osym);
+ bfd_boolean bfd_copy_private_symbol_data
+ (bfd *ibfd, asymbol *isym, bfd *obfd, asymbol *osym);
DESCRIPTION
Copy private symbol information from @var{isym} in the BFD
Not enough memory exists to create private data for @var{osec}.
.#define bfd_copy_private_symbol_data(ibfd, isymbol, obfd, osymbol) \
-. BFD_SEND (obfd, _bfd_copy_private_symbol_data, \
-. (ibfd, isymbol, obfd, osymbol))
+. BFD_SEND (obfd, _bfd_copy_private_symbol_data, \
+. (ibfd, isymbol, obfd, osymbol))
.
*/
version. It just uses BFD asymbol structures as mini symbols. */
long
-_bfd_generic_read_minisymbols (abfd, dynamic, minisymsp, sizep)
- bfd *abfd;
- bfd_boolean dynamic;
- PTR *minisymsp;
- unsigned int *sizep;
+_bfd_generic_read_minisymbols (bfd *abfd,
+ bfd_boolean dynamic,
+ void **minisymsp,
+ unsigned int *sizep)
{
long storage;
asymbol **syms = NULL;
if (storage == 0)
return 0;
- syms = (asymbol **) bfd_malloc ((bfd_size_type) storage);
+ syms = bfd_malloc (storage);
if (syms == NULL)
goto error_return;
if (symcount < 0)
goto error_return;
- *minisymsp = (PTR) syms;
+ *minisymsp = syms;
*sizep = sizeof (asymbol *);
return symcount;
we just return the asymbol the minisymbol points to. */
asymbol *
-_bfd_generic_minisymbol_to_symbol (abfd, dynamic, minisym, sym)
- bfd *abfd ATTRIBUTE_UNUSED;
- bfd_boolean dynamic ATTRIBUTE_UNUSED;
- const PTR minisym;
- asymbol *sym ATTRIBUTE_UNUSED;
+_bfd_generic_minisymbol_to_symbol (bfd *abfd ATTRIBUTE_UNUSED,
+ bfd_boolean dynamic ATTRIBUTE_UNUSED,
+ const void *minisym,
+ asymbol *sym ATTRIBUTE_UNUSED)
{
return *(asymbol **) minisym;
}
/* Compare two indexentry structures. This is called via qsort. */
static int
-cmpindexentry (a, b)
- const PTR a;
- const PTR b;
+cmpindexentry (const void *a, const void *b)
{
- const struct indexentry *contestantA = (const struct indexentry *) a;
- const struct indexentry *contestantB = (const struct indexentry *) b;
+ const struct indexentry *contestantA = a;
+ const struct indexentry *contestantB = b;
if (contestantA->val < contestantB->val)
return -1;
};
bfd_boolean
-_bfd_stab_section_find_nearest_line (abfd, symbols, section, offset, pfound,
- pfilename, pfnname, pline, pinfo)
- bfd *abfd;
- asymbol **symbols;
- asection *section;
- bfd_vma offset;
- bfd_boolean *pfound;
- const char **pfilename;
- const char **pfnname;
- unsigned int *pline;
- PTR *pinfo;
+_bfd_stab_section_find_nearest_line (bfd *abfd,
+ asymbol **symbols,
+ asection *section,
+ bfd_vma offset,
+ bfd_boolean *pfound,
+ const char **pfilename,
+ const char **pfnname,
+ unsigned int *pline,
+ void **pinfo)
{
struct stab_find_info *info;
bfd_size_type stabsize, strsize;
#define VALOFF (8)
#define STABSIZE (12)
- info = (struct stab_find_info *) *pinfo;
+ info = *pinfo;
if (info != NULL)
{
if (info->stabsec == NULL || info->strsec == NULL)
return TRUE;
}
- stabsize = info->stabsec->_raw_size;
- strsize = info->strsec->_raw_size;
+ stabsize = (info->stabsec->rawsize
+ ? info->stabsec->rawsize
+ : info->stabsec->size);
+ strsize = (info->strsec->rawsize
+ ? info->strsec->rawsize
+ : info->strsec->size);
}
else
{
char *function_name;
bfd_size_type amt = sizeof *info;
- info = (struct stab_find_info *) bfd_zalloc (abfd, amt);
+ info = bfd_zalloc (abfd, amt);
if (info == NULL)
return FALSE;
if (info->stabsec == NULL || info->strsec == NULL)
{
- /* No stabs debugging information. Set *pinfo so that we
- can return quickly in the info != NULL case above. */
- *pinfo = (PTR) info;
- return TRUE;
+ /* Try SOM section names. */
+ info->stabsec = bfd_get_section_by_name (abfd, "$GDB_SYMBOLS$");
+ info->strsec = bfd_get_section_by_name (abfd, "$GDB_STRINGS$");
+
+ if (info->stabsec == NULL || info->strsec == NULL)
+ {
+ /* No stabs debugging information. Set *pinfo so that we
+ can return quickly in the info != NULL case above. */
+ *pinfo = info;
+ return TRUE;
+ }
}
- stabsize = info->stabsec->_raw_size;
- strsize = info->strsec->_raw_size;
+ stabsize = (info->stabsec->rawsize
+ ? info->stabsec->rawsize
+ : info->stabsec->size);
+ strsize = (info->strsec->rawsize
+ ? info->strsec->rawsize
+ : info->strsec->size);
- info->stabs = (bfd_byte *) bfd_alloc (abfd, stabsize);
- info->strs = (bfd_byte *) bfd_alloc (abfd, strsize);
+ info->stabs = bfd_alloc (abfd, stabsize);
+ info->strs = bfd_alloc (abfd, strsize);
if (info->stabs == NULL || info->strs == NULL)
return FALSE;
if (! bfd_get_section_contents (abfd, info->stabsec, info->stabs,
- (bfd_vma) 0, stabsize)
+ 0, stabsize)
|| ! bfd_get_section_contents (abfd, info->strsec, info->strs,
- (bfd_vma) 0, strsize))
+ 0, strsize))
return FALSE;
- /* If this is a relocateable object file, we have to relocate
+ /* If this is a relocatable object file, we have to relocate
the entries in .stab. This should always be simple 32 bit
relocations against symbols defined in this object file, so
this should be no big deal. */
reloc_size = bfd_get_reloc_upper_bound (abfd, info->stabsec);
if (reloc_size < 0)
return FALSE;
- reloc_vector = (arelent **) bfd_malloc ((bfd_size_type) reloc_size);
+ reloc_vector = bfd_malloc (reloc_size);
if (reloc_vector == NULL && reloc_size != 0)
return FALSE;
reloc_count = bfd_canonicalize_reloc (abfd, info->stabsec, reloc_vector,
asymbol *sym;
r = *pr;
+ /* Ignore R_*_NONE relocs. */
+ if (r->howto->dst_mask == 0)
+ continue;
+
if (r->howto->rightshift != 0
|| r->howto->size != 2
|| r->howto->bitsize != 32
amt = info->indextablesize;
amt *= sizeof (struct indexentry);
- info->indextable = (struct indexentry *) bfd_alloc (abfd, amt);
+ info->indextable = bfd_alloc (abfd, amt);
if (info->indextable == NULL)
return FALSE;
qsort (info->indextable, (size_t) i, sizeof (struct indexentry),
cmpindexentry);
- *pinfo = (PTR) info;
+ *pinfo = info;
}
/* We are passed a section relative offset. The offsets in the
long low, high;
long mid = -1;
- /* Cache non-existant or invalid. Do binary search on
+ /* Cache non-existent or invalid. Do binary search on
indextable. */
indexentry = NULL;
if (info->filename != NULL)
free (info->filename);
len = strlen (file_name) + 1;
- info->filename = (char *) bfd_malloc ((bfd_size_type) dirlen + len);
+ info->filename = bfd_malloc (dirlen + len);
if (info->filename == NULL)
return FALSE;
memcpy (info->filename, directory_name, dirlen);
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