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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-6.8/] [bfd/] [syms.c] - Diff between revs 157 and 225

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Line 1... Line 1...
/* Generic symbol-table support for the BFD library.
/* Generic symbol-table support for the BFD library.
   Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
   Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
   2000, 2001, 2002, 2003, 2004, 2007
   2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009
   Free Software Foundation, Inc.
   Free Software Foundation, Inc.
   Written by Cygnus Support.
   Written by Cygnus Support.
 
 
   This file is part of BFD, the Binary File Descriptor library.
   This file is part of BFD, the Binary File Descriptor library.
 
 
Line 207... Line 207...
.  {* Attributes of a symbol.  *}
.  {* Attributes of a symbol.  *}
.#define BSF_NO_FLAGS    0x00
.#define BSF_NO_FLAGS    0x00
.
.
.  {* The symbol has local scope; <<static>> in <<C>>. The value
.  {* The symbol has local scope; <<static>> in <<C>>. The value
.     is the offset into the section of the data.  *}
.     is the offset into the section of the data.  *}
.#define BSF_LOCAL      0x01
.#define BSF_LOCAL              (1 << 0)
.
.
.  {* The symbol has global scope; initialized data in <<C>>. The
.  {* The symbol has global scope; initialized data in <<C>>. The
.     value is the offset into the section of the data.  *}
.     value is the offset into the section of the data.  *}
.#define BSF_GLOBAL     0x02
.#define BSF_GLOBAL             (1 << 1)
.
.
.  {* The symbol has global scope and is exported. The value is
.  {* The symbol has global scope and is exported. The value is
.     the offset into the section of the data.  *}
.     the offset into the section of the data.  *}
.#define BSF_EXPORT     BSF_GLOBAL {* No real difference.  *}
.#define BSF_EXPORT     BSF_GLOBAL {* No real difference.  *}
.
.
.  {* A normal C symbol would be one of:
.  {* A normal C symbol would be one of:
.     <<BSF_LOCAL>>, <<BSF_FORT_COMM>>,  <<BSF_UNDEFINED>> or
.     <<BSF_LOCAL>>, <<BSF_COMMON>>,  <<BSF_UNDEFINED>> or
.     <<BSF_GLOBAL>>.  *}
.     <<BSF_GLOBAL>>.  *}
.
.
.  {* The symbol is a debugging record. The value has an arbitrary
.  {* The symbol is a debugging record. The value has an arbitrary
.     meaning, unless BSF_DEBUGGING_RELOC is also set.  *}
.     meaning, unless BSF_DEBUGGING_RELOC is also set.  *}
.#define BSF_DEBUGGING  0x08
.#define BSF_DEBUGGING          (1 << 2)
.
.
.  {* The symbol denotes a function entry point.  Used in ELF,
.  {* The symbol denotes a function entry point.  Used in ELF,
.     perhaps others someday.  *}
.     perhaps others someday.  *}
.#define BSF_FUNCTION    0x10
.#define BSF_FUNCTION           (1 << 3)
.
.
.  {* Used by the linker.  *}
.  {* Used by the linker.  *}
.#define BSF_KEEP        0x20
.#define BSF_KEEP               (1 << 5)
.#define BSF_KEEP_G      0x40
.#define BSF_KEEP_G             (1 << 6)
.
.
.  {* A weak global symbol, overridable without warnings by
.  {* A weak global symbol, overridable without warnings by
.     a regular global symbol of the same name.  *}
.     a regular global symbol of the same name.  *}
.#define BSF_WEAK        0x80
.#define BSF_WEAK               (1 << 7)
.
.
.  {* This symbol was created to point to a section, e.g. ELF's
.  {* This symbol was created to point to a section, e.g. ELF's
.     STT_SECTION symbols.  *}
.     STT_SECTION symbols.  *}
.#define BSF_SECTION_SYM 0x100
.#define BSF_SECTION_SYM        (1 << 8)
.
.
.  {* The symbol used to be a common symbol, but now it is
.  {* The symbol used to be a common symbol, but now it is
.     allocated.  *}
.     allocated.  *}
.#define BSF_OLD_COMMON  0x200
.#define BSF_OLD_COMMON         (1 << 9)
.
 
.  {* The default value for common data.  *}
 
.#define BFD_FORT_COMM_DEFAULT_VALUE 0
 
.
.
.  {* In some files the type of a symbol sometimes alters its
.  {* In some files the type of a symbol sometimes alters its
.     location in an output file - ie in coff a <<ISFCN>> symbol
.     location in an output file - ie in coff a <<ISFCN>> symbol
.     which is also <<C_EXT>> symbol appears where it was
.     which is also <<C_EXT>> symbol appears where it was
.     declared and not at the end of a section.  This bit is set
.     declared and not at the end of a section.  This bit is set
.     by the target BFD part to convey this information.  *}
.     by the target BFD part to convey this information.  *}
.#define BSF_NOT_AT_END    0x400
.#define BSF_NOT_AT_END         (1 << 10)
.
.
.  {* Signal that the symbol is the label of constructor section.  *}
.  {* Signal that the symbol is the label of constructor section.  *}
.#define BSF_CONSTRUCTOR   0x800
.#define BSF_CONSTRUCTOR        (1 << 11)
.
.
.  {* Signal that the symbol is a warning symbol.  The name is a
.  {* Signal that the symbol is a warning symbol.  The name is a
.     warning.  The name of the next symbol is the one to warn about;
.     warning.  The name of the next symbol is the one to warn about;
.     if a reference is made to a symbol with the same name as the next
.     if a reference is made to a symbol with the same name as the next
.     symbol, a warning is issued by the linker.  *}
.     symbol, a warning is issued by the linker.  *}
.#define BSF_WARNING       0x1000
.#define BSF_WARNING            (1 << 12)
.
.
.  {* Signal that the symbol is indirect.  This symbol is an indirect
.  {* Signal that the symbol is indirect.  This symbol is an indirect
.     pointer to the symbol with the same name as the next symbol.  *}
.     pointer to the symbol with the same name as the next symbol.  *}
.#define BSF_INDIRECT      0x2000
.#define BSF_INDIRECT           (1 << 13)
.
.
.  {* BSF_FILE marks symbols that contain a file name.  This is used
.  {* BSF_FILE marks symbols that contain a file name.  This is used
.     for ELF STT_FILE symbols.  *}
.     for ELF STT_FILE symbols.  *}
.#define BSF_FILE          0x4000
.#define BSF_FILE               (1 << 14)
.
.
.  {* Symbol is from dynamic linking information.  *}
.  {* Symbol is from dynamic linking information.  *}
.#define BSF_DYNAMIC       0x8000
.#define BSF_DYNAMIC            (1 << 15)
.
.
.  {* The symbol denotes a data object.  Used in ELF, and perhaps
.  {* The symbol denotes a data object.  Used in ELF, and perhaps
.     others someday.  *}
.     others someday.  *}
.#define BSF_OBJECT        0x10000
.#define BSF_OBJECT             (1 << 16)
.
.
.  {* This symbol is a debugging symbol.  The value is the offset
.  {* This symbol is a debugging symbol.  The value is the offset
.     into the section of the data.  BSF_DEBUGGING should be set
.     into the section of the data.  BSF_DEBUGGING should be set
.     as well.  *}
.     as well.  *}
.#define BSF_DEBUGGING_RELOC 0x20000
.#define BSF_DEBUGGING_RELOC    (1 << 17)
.
.
.  {* This symbol is thread local.  Used in ELF.  *}
.  {* This symbol is thread local.  Used in ELF.  *}
.#define BSF_THREAD_LOCAL  0x40000
.#define BSF_THREAD_LOCAL       (1 << 18)
.
.
.  {* This symbol represents a complex relocation expression,
.  {* This symbol represents a complex relocation expression,
.     with the expression tree serialized in the symbol name.  *}
.     with the expression tree serialized in the symbol name.  *}
.#define BSF_RELC 0x80000
.#define BSF_RELC               (1 << 19)
.
.
.  {* This symbol represents a signed complex relocation expression,
.  {* This symbol represents a signed complex relocation expression,
.     with the expression tree serialized in the symbol name.  *}
.     with the expression tree serialized in the symbol name.  *}
.#define BSF_SRELC 0x100000
.#define BSF_SRELC              (1 << 20)
 
.
 
.  {* This symbol was created by bfd_get_synthetic_symtab.  *}
 
.#define BSF_SYNTHETIC          (1 << 21)
 
.
 
.  {* This symbol is an indirect code object.  Unrelated to BSF_INDIRECT.
 
.     The dynamic linker will compute the value of this symbol by
 
.     calling the function that it points to.  BSF_FUNCTION must
 
.     also be also set.  *}
 
.#define BSF_GNU_INDIRECT_FUNCTION (1 << 22)
 
.  {* This symbol is a globally unique data object.  The dynamic linker
 
.     will make sure that in the entire process there is just one symbol
 
.     with this name and type in use.  BSF_OBJECT must also be set.  *}
 
.#define BSF_GNU_UNIQUE         (1 << 23)
.
.
.  flagword flags;
.  flagword flags;
.
.
.  {* A pointer to the section to which this symbol is
.  {* A pointer to the section to which this symbol is
.     relative.  This will always be non NULL, there are special
.     relative.  This will always be non NULL, there are special
Line 462... Line 472...
        stream @var{file}.
        stream @var{file}.
*/
*/
void
void
bfd_print_symbol_vandf (bfd *abfd, void *arg, asymbol *symbol)
bfd_print_symbol_vandf (bfd *abfd, void *arg, asymbol *symbol)
{
{
  FILE *file = arg;
  FILE *file = (FILE *) arg;
 
 
  flagword type = symbol->flags;
  flagword type = symbol->flags;
 
 
  if (symbol->section != NULL)
  if (symbol->section != NULL)
    bfd_fprintf_vma (abfd, file, symbol->value + symbol->section->vma);
    bfd_fprintf_vma (abfd, file, symbol->value + symbol->section->vma);
Line 477... Line 487...
     BSF_DYNAMIC, nor more than one of BSF_FUNCTION, BSF_FILE, and
     BSF_DYNAMIC, nor more than one of BSF_FUNCTION, BSF_FILE, and
     BSF_OBJECT.  */
     BSF_OBJECT.  */
  fprintf (file, " %c%c%c%c%c%c%c",
  fprintf (file, " %c%c%c%c%c%c%c",
           ((type & BSF_LOCAL)
           ((type & BSF_LOCAL)
            ? (type & BSF_GLOBAL) ? '!' : 'l'
            ? (type & BSF_GLOBAL) ? '!' : 'l'
            : (type & BSF_GLOBAL) ? 'g' : ' '),
            : (type & BSF_GLOBAL) ? 'g'
 
            : (type & BSF_GNU_UNIQUE) ? 'u' : ' '),
           (type & BSF_WEAK) ? 'w' : ' ',
           (type & BSF_WEAK) ? 'w' : ' ',
           (type & BSF_CONSTRUCTOR) ? 'C' : ' ',
           (type & BSF_CONSTRUCTOR) ? 'C' : ' ',
           (type & BSF_WARNING) ? 'W' : ' ',
           (type & BSF_WARNING) ? 'W' : ' ',
           (type & BSF_INDIRECT) ? 'I' : ' ',
           (type & BSF_INDIRECT) ? 'I' : (type & BSF_GNU_INDIRECT_FUNCTION) ? 'i' : ' ',
           (type & BSF_DEBUGGING) ? 'd' : (type & BSF_DYNAMIC) ? 'D' : ' ',
           (type & BSF_DEBUGGING) ? 'd' : (type & BSF_DYNAMIC) ? 'D' : ' ',
           ((type & BSF_FUNCTION)
           ((type & BSF_FUNCTION)
            ? 'F'
            ? 'F'
            : ((type & BSF_FILE)
            : ((type & BSF_FILE)
               ? 'f'
               ? 'f'
Line 526... Line 537...
 
 
asymbol *
asymbol *
_bfd_generic_make_empty_symbol (bfd *abfd)
_bfd_generic_make_empty_symbol (bfd *abfd)
{
{
  bfd_size_type amt = sizeof (asymbol);
  bfd_size_type amt = sizeof (asymbol);
  asymbol *new = bfd_zalloc (abfd, amt);
  asymbol *new_symbol = (asymbol *) bfd_zalloc (abfd, amt);
  if (new)
  if (new_symbol)
    new->the_bfd = abfd;
    new_symbol->the_bfd = abfd;
  return new;
  return new_symbol;
}
}
 
 
/*
/*
FUNCTION
FUNCTION
        bfd_make_debug_symbol
        bfd_make_debug_symbol
Line 667... Line 678...
      else
      else
        return 'U';
        return 'U';
    }
    }
  if (bfd_is_ind_section (symbol->section))
  if (bfd_is_ind_section (symbol->section))
    return 'I';
    return 'I';
 
  if (symbol->flags & BSF_GNU_INDIRECT_FUNCTION)
 
    return 'i';
  if (symbol->flags & BSF_WEAK)
  if (symbol->flags & BSF_WEAK)
    {
    {
      /* If weak, determine if it's specifically an object
      /* If weak, determine if it's specifically an object
         or non-object weak.  */
         or non-object weak.  */
      if (symbol->flags & BSF_OBJECT)
      if (symbol->flags & BSF_OBJECT)
        return 'V';
        return 'V';
      else
      else
        return 'W';
        return 'W';
    }
    }
 
  if (symbol->flags & BSF_GNU_UNIQUE)
 
    return 'u';
  if (!(symbol->flags & (BSF_GLOBAL | BSF_LOCAL)))
  if (!(symbol->flags & (BSF_GLOBAL | BSF_LOCAL)))
    return '?';
    return '?';
 
 
  if (bfd_is_abs_section (symbol->section))
  if (bfd_is_abs_section (symbol->section))
    c = 'a';
    c = 'a';
Line 794... Line 809...
  if (storage < 0)
  if (storage < 0)
    goto error_return;
    goto error_return;
  if (storage == 0)
  if (storage == 0)
    return 0;
    return 0;
 
 
  syms = bfd_malloc (storage);
  syms = (asymbol **) bfd_malloc (storage);
  if (syms == NULL)
  if (syms == NULL)
    goto error_return;
    goto error_return;
 
 
  if (dynamic)
  if (dynamic)
    symcount = bfd_canonicalize_dynamic_symtab (abfd, syms);
    symcount = bfd_canonicalize_dynamic_symtab (abfd, syms);
Line 861... Line 876...
/* Compare two indexentry structures.  This is called via qsort.  */
/* Compare two indexentry structures.  This is called via qsort.  */
 
 
static int
static int
cmpindexentry (const void *a, const void *b)
cmpindexentry (const void *a, const void *b)
{
{
  const struct indexentry *contestantA = a;
  const struct indexentry *contestantA = (const struct indexentry *) a;
  const struct indexentry *contestantB = b;
  const struct indexentry *contestantB = (const struct indexentry *) b;
 
 
  if (contestantA->val < contestantB->val)
  if (contestantA->val < contestantB->val)
    return -1;
    return -1;
  else if (contestantA->val > contestantB->val)
  else if (contestantA->val > contestantB->val)
    return 1;
    return 1;
Line 949... Line 964...
#define OTHEROFF (5)
#define OTHEROFF (5)
#define DESCOFF (6)
#define DESCOFF (6)
#define VALOFF (8)
#define VALOFF (8)
#define STABSIZE (12)
#define STABSIZE (12)
 
 
  info = *pinfo;
  info = (struct stab_find_info *) *pinfo;
  if (info != NULL)
  if (info != NULL)
    {
    {
      if (info->stabsec == NULL || info->strsec == NULL)
      if (info->stabsec == NULL || info->strsec == NULL)
        {
        {
          /* No stabs debugging information.  */
          /* No stabs debugging information.  */
Line 974... Line 989...
      int i;
      int i;
      char *name;
      char *name;
      char *function_name;
      char *function_name;
      bfd_size_type amt = sizeof *info;
      bfd_size_type amt = sizeof *info;
 
 
      info = bfd_zalloc (abfd, amt);
      info = (struct stab_find_info *) bfd_zalloc (abfd, amt);
      if (info == NULL)
      if (info == NULL)
        return FALSE;
        return FALSE;
 
 
      /* FIXME: When using the linker --split-by-file or
      /* FIXME: When using the linker --split-by-file or
         --split-by-reloc options, it is possible for the .stab and
         --split-by-reloc options, it is possible for the .stab and
Line 1007... Line 1022...
                  : info->stabsec->size);
                  : info->stabsec->size);
      strsize = (info->strsec->rawsize
      strsize = (info->strsec->rawsize
                 ? info->strsec->rawsize
                 ? info->strsec->rawsize
                 : info->strsec->size);
                 : info->strsec->size);
 
 
      info->stabs = bfd_alloc (abfd, stabsize);
      info->stabs = (bfd_byte *) bfd_alloc (abfd, stabsize);
      info->strs = bfd_alloc (abfd, strsize);
      info->strs = (bfd_byte *) bfd_alloc (abfd, strsize);
      if (info->stabs == NULL || info->strs == NULL)
      if (info->stabs == NULL || info->strs == NULL)
        return FALSE;
        return FALSE;
 
 
      if (! bfd_get_section_contents (abfd, info->stabsec, info->stabs,
      if (! bfd_get_section_contents (abfd, info->stabsec, info->stabs,
                                      0, stabsize)
                                      0, stabsize)
Line 1025... Line 1040...
         relocations against symbols defined in this object file, so
         relocations against symbols defined in this object file, so
         this should be no big deal.  */
         this should be no big deal.  */
      reloc_size = bfd_get_reloc_upper_bound (abfd, info->stabsec);
      reloc_size = bfd_get_reloc_upper_bound (abfd, info->stabsec);
      if (reloc_size < 0)
      if (reloc_size < 0)
        return FALSE;
        return FALSE;
      reloc_vector = bfd_malloc (reloc_size);
      reloc_vector = (arelent **) bfd_malloc (reloc_size);
      if (reloc_vector == NULL && reloc_size != 0)
      if (reloc_vector == NULL && reloc_size != 0)
        return FALSE;
        return FALSE;
      reloc_count = bfd_canonicalize_reloc (abfd, info->stabsec, reloc_vector,
      reloc_count = bfd_canonicalize_reloc (abfd, info->stabsec, reloc_vector,
                                            symbols);
                                            symbols);
      if (reloc_count < 0)
      if (reloc_count < 0)
Line 1122... Line 1137...
        return TRUE;
        return TRUE;
      ++info->indextablesize;
      ++info->indextablesize;
 
 
      amt = info->indextablesize;
      amt = info->indextablesize;
      amt *= sizeof (struct indexentry);
      amt *= sizeof (struct indexentry);
      info->indextable = bfd_alloc (abfd, amt);
      info->indextable = (struct indexentry *) bfd_alloc (abfd, amt);
      if (info->indextable == NULL)
      if (info->indextable == NULL)
        return FALSE;
        return FALSE;
 
 
      file_name = NULL;
      file_name = NULL;
      directory_name = NULL;
      directory_name = NULL;
Line 1374... Line 1389...
          || strncmp (info->filename, directory_name, dirlen) != 0
          || strncmp (info->filename, directory_name, dirlen) != 0
          || strcmp (info->filename + dirlen, file_name) != 0)
          || strcmp (info->filename + dirlen, file_name) != 0)
        {
        {
          size_t len;
          size_t len;
 
 
          if (info->filename != NULL)
          /* Don't free info->filename here.  objdump and other
            free (info->filename);
             apps keep a copy of a previously returned file name
 
             pointer.  */
          len = strlen (file_name) + 1;
          len = strlen (file_name) + 1;
          info->filename = bfd_malloc (dirlen + len);
          info->filename = (char *) bfd_alloc (abfd, dirlen + len);
          if (info->filename == NULL)
          if (info->filename == NULL)
            return FALSE;
            return FALSE;
          memcpy (info->filename, directory_name, dirlen);
          memcpy (info->filename, directory_name, dirlen);
          memcpy (info->filename + dirlen, file_name, len);
          memcpy (info->filename + dirlen, file_name, len);
        }
        }

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