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cell-binutils  2.17cvs20070401
Classes | Defines | Functions | Variables
opncls.c File Reference
#include "bfd.h"
#include "sysdep.h"
#include "objalloc.h"
#include "libbfd.h"
#include "libiberty.h"

Go to the source code of this file.

Classes

struct  opncls

Defines

#define S_IXUSR   0100 /* Execute by owner. */
#define S_IXGRP   0010 /* Execute by group. */
#define S_IXOTH   0001 /* Execute by others. */
#define GNU_DEBUGLINK   ".gnu_debuglink"

Functions

bfd_bfd_new_bfd (void)
bfd_bfd_new_bfd_contained_in (bfd *obfd)
void _bfd_delete_bfd (bfd *abfd)
bfd_boolean _bfd_free_cached_info (bfd *abfd)
bfdbfd_fopen (const char *filename, const char *target, const char *mode, int fd)
bfdbfd_openr (const char *filename, const char *target)
bfdbfd_fdopenr (const char *filename, const char *target, int fd)
bfdbfd_openstreamr (const char *filename, const char *target, void *streamarg)
static file_ptr opncls_btell (struct bfd *abfd)
static int opncls_bseek (struct bfd *abfd, file_ptr offset, int whence)
static file_ptr opncls_bread (struct bfd *abfd, void *buf, file_ptr nbytes)
static file_ptr opncls_bwrite (struct bfd *abfd ATTRIBUTE_UNUSED, const void *where ATTRIBUTE_UNUSED, file_ptr nbytes ATTRIBUTE_UNUSED)
static int opncls_bclose (struct bfd *abfd)
static int opncls_bflush (struct bfd *abfd ATTRIBUTE_UNUSED)
static int opncls_bstat (struct bfd *abfd, struct stat *sb)
bfdbfd_openr_iovec (const char *filename, const char *target, void *(*open)(struct bfd *nbfd, void *open_closure), void *open_closure, file_ptr(*pread)(struct bfd *abfd, void *stream, void *buf, file_ptr nbytes, file_ptr offset), int(*close)(struct bfd *nbfd, void *stream), int(*stat)(struct bfd *abfd, void *stream, struct stat *sb))
bfdbfd_openw (const char *filename, const char *target)
bfd_boolean bfd_close (bfd *abfd)
bfd_boolean bfd_close_all_done (bfd *abfd)
bfdbfd_create (const char *filename, bfd *templ)
bfd_boolean bfd_make_writable (bfd *abfd)
bfd_boolean bfd_make_readable (bfd *abfd)
void * bfd_alloc (bfd *abfd, bfd_size_type size)
void * bfd_alloc2 (bfd *abfd, bfd_size_type nmemb, bfd_size_type size)
void * bfd_zalloc (bfd *abfd, bfd_size_type size)
void * bfd_zalloc2 (bfd *abfd, bfd_size_type nmemb, bfd_size_type size)
void bfd_release (bfd *abfd, void *block)
unsigned long bfd_calc_gnu_debuglink_crc32 (unsigned long crc, const unsigned char *buf, bfd_size_type len)
static char * get_debug_link_info (bfd *abfd, unsigned long *crc32_out)
static bfd_boolean separate_debug_file_exists (const char *name, const unsigned long crc)
static char * find_separate_debug_file (bfd *abfd, const char *debug_file_directory)
char * bfd_follow_gnu_debuglink (bfd *abfd, const char *dir)
asectionbfd_create_gnu_debuglink_section (bfd *abfd, const char *filename)
bfd_boolean bfd_fill_in_gnu_debuglink_section (bfd *abfd, struct bfd_section *sect, const char *filename)

Variables

static unsigned int _bfd_id_counter = 0
static struct bfd_iovec

Define Documentation

#define GNU_DEBUGLINK   ".gnu_debuglink"

Definition at line 1021 of file opncls.c.

#define S_IXGRP   0010 /* Execute by group. */

Definition at line 34 of file opncls.c.

#define S_IXOTH   0001 /* Execute by others. */

Definition at line 37 of file opncls.c.

#define S_IXUSR   0100 /* Execute by owner. */

Definition at line 31 of file opncls.c.


Function Documentation

void _bfd_delete_bfd ( bfd abfd)

Definition at line 116 of file opncls.c.

{
  if (abfd->memory)
    {
      bfd_hash_table_free (&abfd->section_htab);
      objalloc_free ((struct objalloc *) abfd->memory);
    }
  free (abfd);
}

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Definition at line 129 of file opncls.c.

{
  if (abfd->memory)
    {
      bfd_hash_table_free (&abfd->section_htab);
      objalloc_free ((struct objalloc *) abfd->memory);

      abfd->sections = NULL;
      abfd->section_last = NULL;
      abfd->outsymbols = NULL;
      abfd->tdata.any = NULL;
      abfd->usrdata = NULL;
      abfd->memory = NULL;
    }

  return TRUE;
}

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bfd* _bfd_new_bfd ( void  )

Definition at line 50 of file opncls.c.

{
  bfd *nbfd;

  nbfd = bfd_zmalloc (sizeof (bfd));
  if (nbfd == NULL)
    return NULL;

  nbfd->id = _bfd_id_counter++;

  nbfd->memory = objalloc_create ();
  if (nbfd->memory == NULL)
    {
      bfd_set_error (bfd_error_no_memory);
      free (nbfd);
      return NULL;
    }

  nbfd->arch_info = &bfd_default_arch_struct;

  nbfd->direction = no_direction;
  nbfd->iostream = NULL;
  nbfd->where = 0;
  if (!bfd_hash_table_init_n (& nbfd->section_htab, bfd_section_hash_newfunc,
                           sizeof (struct section_hash_entry), 251))
    {
      free (nbfd);
      return NULL;
    }
  nbfd->sections = NULL;
  nbfd->section_last = NULL;
  nbfd->format = bfd_unknown;
  nbfd->my_archive = NULL;
  nbfd->origin = 0;
  nbfd->opened_once = FALSE;
  nbfd->output_has_begun = FALSE;
  nbfd->section_count = 0;
  nbfd->usrdata = NULL;
  nbfd->cacheable = FALSE;
  nbfd->flags = BFD_NO_FLAGS;
  nbfd->mtime_set = FALSE;

  return nbfd;
}

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Definition at line 98 of file opncls.c.

{
  bfd *nbfd;

  nbfd = _bfd_new_bfd ();
  if (nbfd == NULL)
    return NULL;
  nbfd->xvec = obfd->xvec;
  nbfd->iovec = obfd->iovec;
  nbfd->my_archive = obfd;
  nbfd->direction = read_direction;
  nbfd->target_defaulted = obfd->target_defaulted;
  return nbfd;
}

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void* bfd_alloc ( bfd abfd,
bfd_size_type  size 
)

Definition at line 886 of file opncls.c.

{
  void *ret;

  if (size != (unsigned long) size)
    {
      bfd_set_error (bfd_error_no_memory);
      return NULL;
    }

  ret = objalloc_alloc (abfd->memory, (unsigned long) size);
  if (ret == NULL)
    bfd_set_error (bfd_error_no_memory);
  return ret;
}

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void* bfd_alloc2 ( bfd abfd,
bfd_size_type  nmemb,
bfd_size_type  size 
)

Definition at line 915 of file opncls.c.

{
  void *ret;

  if ((nmemb | size) >= HALF_BFD_SIZE_TYPE
      && size != 0
      && nmemb > ~(bfd_size_type) 0 / size)
    {
      bfd_set_error (bfd_error_no_memory);
      return NULL;
    }

  size *= nmemb;

  if (size != (unsigned long) size)
    {
      bfd_set_error (bfd_error_no_memory);
      return NULL;
    }

  ret = objalloc_alloc (abfd->memory, (unsigned long) size);
  if (ret == NULL)
    bfd_set_error (bfd_error_no_memory);
  return ret;
}

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Definition at line 1040 of file opncls.c.

{
  static const unsigned long crc32_table[256] =
    {
      0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419,
      0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4,
      0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07,
      0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
      0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856,
      0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
      0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4,
      0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
      0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3,
      0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a,
      0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599,
      0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
      0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190,
      0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f,
      0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e,
      0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
      0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed,
      0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
      0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3,
      0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
      0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a,
      0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5,
      0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010,
      0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
      0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17,
      0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6,
      0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615,
      0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
      0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344,
      0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
      0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a,
      0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
      0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1,
      0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c,
      0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef,
      0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
      0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe,
      0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31,
      0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c,
      0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
      0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b,
      0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
      0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1,
      0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
      0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278,
      0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7,
      0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66,
      0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
      0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605,
      0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8,
      0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b,
      0x2d02ef8d
    };
  const unsigned char *end;

  crc = ~crc & 0xffffffff;
  for (end = buf + len; buf < end; ++ buf)
    crc = crc32_table[(crc ^ *buf) & 0xff] ^ (crc >> 8);
  return ~crc & 0xffffffff;;
}

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bfd_boolean bfd_close ( bfd abfd)

Definition at line 645 of file opncls.c.

{
  bfd_boolean ret;

  if (bfd_write_p (abfd))
    {
      if (! BFD_SEND_FMT (abfd, _bfd_write_contents, (abfd)))
       return FALSE;
    }

  if (! BFD_SEND (abfd, _close_and_cleanup, (abfd)))
    return FALSE;

  /* FIXME: cagney/2004-02-15: Need to implement a BFD_IN_MEMORY io
     vector.  */
  if (!(abfd->flags & BFD_IN_MEMORY))
    ret = abfd->iovec->bclose (abfd);
  else
    ret = TRUE;

  /* If the file was open for writing and is now executable,
     make it so.  */
  if (ret
      && abfd->direction == write_direction
      && abfd->flags & EXEC_P)
    {
      struct stat buf;

      if (stat (abfd->filename, &buf) == 0)
       {
         unsigned int mask = umask (0);

         umask (mask);
         chmod (abfd->filename,
               (0777
                & (buf.st_mode | ((S_IXUSR | S_IXGRP | S_IXOTH) &~ mask))));
       }
    }

  _bfd_delete_bfd (abfd);

  return ret;
}

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Definition at line 712 of file opncls.c.

{
  bfd_boolean ret;

  ret = bfd_cache_close (abfd);

  /* If the file was open for writing and is now executable,
     make it so.  */
  if (ret
      && abfd->direction == write_direction
      && abfd->flags & EXEC_P)
    {
      struct stat buf;

      if (stat (abfd->filename, &buf) == 0)
       {
         unsigned int mask = umask (0);

         umask (mask);
         chmod (abfd->filename,
               (0777
                & (buf.st_mode | ((S_IXUSR | S_IXGRP | S_IXOTH) &~ mask))));
       }
    }

  _bfd_delete_bfd (abfd);

  return ret;
}

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bfd* bfd_create ( const char *  filename,
bfd templ 
)

Definition at line 756 of file opncls.c.

{
  bfd *nbfd;

  nbfd = _bfd_new_bfd ();
  if (nbfd == NULL)
    return NULL;
  nbfd->filename = filename;
  if (templ)
    nbfd->xvec = templ->xvec;
  nbfd->direction = no_direction;
  bfd_set_format (nbfd, bfd_object);

  return nbfd;
}

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asection* bfd_create_gnu_debuglink_section ( bfd abfd,
const char *  filename 
) [read]

Definition at line 1361 of file opncls.c.

{
  asection *sect;
  bfd_size_type debuglink_size;
  flagword flags;

  if (abfd == NULL || filename == NULL)
    {
      bfd_set_error (bfd_error_invalid_operation);
      return NULL;
    }

  /* Strip off any path components in filename.  */
  filename = lbasename (filename);

  sect = bfd_get_section_by_name (abfd, GNU_DEBUGLINK);
  if (sect)
    {
      /* Section already exists.  */
      bfd_set_error (bfd_error_invalid_operation);
      return NULL;
    }

  flags = SEC_HAS_CONTENTS | SEC_READONLY | SEC_DEBUGGING;
  sect = bfd_make_section_with_flags (abfd, GNU_DEBUGLINK, flags);
  if (sect == NULL)
    return NULL;

  debuglink_size = strlen (filename) + 1;
  debuglink_size += 3;
  debuglink_size &= ~3;
  debuglink_size += 4;

  if (! bfd_set_section_size (abfd, sect, debuglink_size))
    /* XXX Should we delete the section from the bfd ?  */
    return NULL;

  return sect;
}

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bfd* bfd_fdopenr ( const char *  filename,
const char *  target,
int  fd 
)

Definition at line 298 of file opncls.c.

{
  const char *mode;
#if defined(HAVE_FCNTL) && defined(F_GETFL)
  int fdflags;
#endif

#if ! defined(HAVE_FCNTL) || ! defined(F_GETFL)
  mode = FOPEN_RUB; /* Assume full access.  */
#else
  fdflags = fcntl (fd, F_GETFL, NULL);
  if (fdflags == -1)
    {
      bfd_set_error (bfd_error_system_call);
      return NULL;
    }

  /* (O_ACCMODE) parens are to avoid Ultrix header file bug.  */
  switch (fdflags & (O_ACCMODE))
    {
    case O_RDONLY: mode = FOPEN_RB; break;
    case O_WRONLY: mode = FOPEN_RUB; break;
    case O_RDWR:   mode = FOPEN_RUB; break;
    default: abort ();
    }
#endif

  return bfd_fopen (filename, target, mode, fd);
}

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bfd_boolean bfd_fill_in_gnu_debuglink_section ( bfd abfd,
struct bfd_section sect,
const char *  filename 
)

Definition at line 1423 of file opncls.c.

{
  bfd_size_type debuglink_size;
  unsigned long crc32;
  char * contents;
  bfd_size_type crc_offset;
  FILE * handle;
  static unsigned char buffer[8 * 1024];
  size_t count;

  if (abfd == NULL || sect == NULL || filename == NULL)
    {
      bfd_set_error (bfd_error_invalid_operation);
      return FALSE;
    }

  /* Make sure that we can read the file.
     XXX - Should we attempt to locate the debug info file using the same
     algorithm as gdb ?  At the moment, since we are creating the
     .gnu_debuglink section, we insist upon the user providing us with a
     correct-for-section-creation-time path, but this need not conform to
     the gdb location algorithm.  */
  handle = real_fopen (filename, FOPEN_RB);
  if (handle == NULL)
    {
      bfd_set_error (bfd_error_system_call);
      return FALSE;
    }

  crc32 = 0;
  while ((count = fread (buffer, 1, sizeof buffer, handle)) > 0)
    crc32 = bfd_calc_gnu_debuglink_crc32 (crc32, buffer, count);
  fclose (handle);

  /* Strip off any path components in filename,
     now that we no longer need them.  */
  filename = lbasename (filename);

  debuglink_size = strlen (filename) + 1;
  debuglink_size += 3;
  debuglink_size &= ~3;
  debuglink_size += 4;

  contents = malloc (debuglink_size);
  if (contents == NULL)
    {
      /* XXX Should we delete the section from the bfd ?  */
      bfd_set_error (bfd_error_no_memory);
      return FALSE;
    }

  strcpy (contents, filename);
  crc_offset = debuglink_size - 4;

  bfd_put_32 (abfd, crc32, contents + crc_offset);

  if (! bfd_set_section_contents (abfd, sect, contents, 0, debuglink_size))
    {
      /* XXX Should we delete the section from the bfd ?  */
      free (contents);
      return FALSE;
    }

  return TRUE;
}

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char* bfd_follow_gnu_debuglink ( bfd abfd,
const char *  dir 
)

Definition at line 1337 of file opncls.c.

{
  return find_separate_debug_file (abfd, dir);
}

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bfd* bfd_fopen ( const char *  filename,
const char *  target,
const char *  mode,
int  fd 
)

Definition at line 181 of file opncls.c.

{
  bfd *nbfd;
  const bfd_target *target_vec;

  nbfd = _bfd_new_bfd ();
  if (nbfd == NULL)
    return NULL;

  target_vec = bfd_find_target (target, nbfd);
  if (target_vec == NULL)
    {
      _bfd_delete_bfd (nbfd);
      return NULL;
    }
  
#ifdef HAVE_FDOPEN
  if (fd != -1)
    nbfd->iostream = fdopen (fd, mode);
  else
#endif
    nbfd->iostream = real_fopen (filename, mode);
  if (nbfd->iostream == NULL)
    {
      bfd_set_error (bfd_error_system_call);
      _bfd_delete_bfd (nbfd);
      return NULL;
    }

  /* OK, put everything where it belongs.  */
  nbfd->filename = filename;

  /* Figure out whether the user is opening the file for reading,
     writing, or both, by looking at the MODE argument.  */
  if ((mode[0] == 'r' || mode[0] == 'w' || mode[0] == 'a') 
      && mode[1] == '+')
    nbfd->direction = both_direction;
  else if (mode[0] == 'r')
    nbfd->direction = read_direction;
  else
    nbfd->direction = write_direction;

  if (! bfd_cache_init (nbfd))
    {
      _bfd_delete_bfd (nbfd);
      return NULL;
    }
  nbfd->opened_once = TRUE;
  /* If we opened the file by name, mark it cacheable; we can close it
     and reopen it later.  However, if a file descriptor was provided,
     then it may have been opened with special flags that make it
     unsafe to close and reopen the file.  */
  if (fd == -1)
    bfd_set_cacheable (nbfd, TRUE);

  return nbfd;
}

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Definition at line 831 of file opncls.c.

{
  if (abfd->direction != write_direction || !(abfd->flags & BFD_IN_MEMORY))
    {
      bfd_set_error (bfd_error_invalid_operation);
      return FALSE;
    }

  if (! BFD_SEND_FMT (abfd, _bfd_write_contents, (abfd)))
    return FALSE;

  if (! BFD_SEND (abfd, _close_and_cleanup, (abfd)))
    return FALSE;


  abfd->arch_info = &bfd_default_arch_struct;

  abfd->where = 0;
  abfd->format = bfd_unknown;
  abfd->my_archive = NULL;
  abfd->origin = 0;
  abfd->opened_once = FALSE;
  abfd->output_has_begun = FALSE;
  abfd->section_count = 0;
  abfd->usrdata = NULL;
  abfd->cacheable = FALSE;
  abfd->flags = BFD_IN_MEMORY;
  abfd->mtime_set = FALSE;

  abfd->target_defaulted = TRUE;
  abfd->direction = read_direction;
  abfd->sections = 0;
  abfd->symcount = 0;
  abfd->outsymbols = 0;
  abfd->tdata.any = 0;

  bfd_section_list_clear (abfd);
  bfd_check_format (abfd, bfd_object);

  return TRUE;
}

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Definition at line 790 of file opncls.c.

{
  struct bfd_in_memory *bim;

  if (abfd->direction != no_direction)
    {
      bfd_set_error (bfd_error_invalid_operation);
      return FALSE;
    }

  bim = bfd_malloc (sizeof (struct bfd_in_memory));
  abfd->iostream = bim;
  /* bfd_bwrite will grow these as needed.  */
  bim->size = 0;
  bim->buffer = 0;

  abfd->flags |= BFD_IN_MEMORY;
  abfd->direction = write_direction;
  abfd->where = 0;

  return TRUE;
}

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bfd* bfd_openr ( const char *  filename,
const char *  target 
)

Definition at line 259 of file opncls.c.

{
  return bfd_fopen (filename, target, FOPEN_RB, -1);
}

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bfd* bfd_openr_iovec ( const char *  filename,
const char *  target,
void *(*)(struct bfd *nbfd, void *open_closure)  open,
void *  open_closure,
file_ptr(*)(struct bfd *abfd, void *stream, void *buf, file_ptr nbytes, file_ptr offset pread,
int(*)(struct bfd *nbfd, void *stream close,
int(*)(struct bfd *abfd, void *stream, struct stat *sb stat 
)

Definition at line 513 of file opncls.c.

{
  bfd *nbfd;
  const bfd_target *target_vec;
  struct opncls *vec;
  void *stream;

  nbfd = _bfd_new_bfd ();
  if (nbfd == NULL)
    return NULL;

  target_vec = bfd_find_target (target, nbfd);
  if (target_vec == NULL)
    {
      _bfd_delete_bfd (nbfd);
      return NULL;
    }

  nbfd->filename = filename;
  nbfd->direction = read_direction;

  stream = open (nbfd, open_closure);
  if (stream == NULL)
    {
      _bfd_delete_bfd (nbfd);
      return NULL;
    }

  vec = bfd_zalloc (nbfd, sizeof (struct opncls));
  vec->stream = stream;
  vec->pread = pread;
  vec->close = close;
  vec->stat = stat;

  nbfd->iovec = &opncls_iovec;
  nbfd->iostream = vec;

  return nbfd;
}

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bfd* bfd_openstreamr ( const char *  filename,
const char *  target,
void *  streamarg 
)

Definition at line 342 of file opncls.c.

{
  FILE *stream = streamarg;
  bfd *nbfd;
  const bfd_target *target_vec;

  nbfd = _bfd_new_bfd ();
  if (nbfd == NULL)
    return NULL;

  target_vec = bfd_find_target (target, nbfd);
  if (target_vec == NULL)
    {
      _bfd_delete_bfd (nbfd);
      return NULL;
    }

  nbfd->iostream = stream;
  nbfd->filename = filename;
  nbfd->direction = read_direction;

  if (! bfd_cache_init (nbfd))
    {
      _bfd_delete_bfd (nbfd);
      return NULL;
    }

  return nbfd;
}

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bfd* bfd_openw ( const char *  filename,
const char *  target 
)

Definition at line 587 of file opncls.c.

{
  bfd *nbfd;
  const bfd_target *target_vec;

  /* nbfd has to point to head of malloc'ed block so that bfd_close may
     reclaim it correctly.  */
  nbfd = _bfd_new_bfd ();
  if (nbfd == NULL)
    return NULL;

  target_vec = bfd_find_target (target, nbfd);
  if (target_vec == NULL)
    {
      _bfd_delete_bfd (nbfd);
      return NULL;
    }

  nbfd->filename = filename;
  nbfd->direction = write_direction;

  if (bfd_open_file (nbfd) == NULL)
    {
      /* File not writeable, etc.  */
      bfd_set_error (bfd_error_system_call);
      _bfd_delete_bfd (nbfd);
      return NULL;
  }

  return nbfd;
}

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void bfd_release ( bfd abfd,
void *  block 
)

Definition at line 1001 of file opncls.c.

{
  objalloc_free_block ((struct objalloc *) abfd->memory, block);
}

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void* bfd_zalloc ( bfd abfd,
bfd_size_type  size 
)

Definition at line 954 of file opncls.c.

{
  void *res;

  res = bfd_alloc (abfd, size);
  if (res)
    memset (res, 0, (size_t) size);
  return res;
}

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void* bfd_zalloc2 ( bfd abfd,
bfd_size_type  nmemb,
bfd_size_type  size 
)

Definition at line 977 of file opncls.c.

{
  void *res;

  if ((nmemb | size) >= HALF_BFD_SIZE_TYPE
      && size != 0
      && nmemb > ~(bfd_size_type) 0 / size)
    {
      bfd_set_error (bfd_error_no_memory);
      return NULL;
    }

  size *= nmemb;

  res = bfd_alloc (abfd, size);
  if (res)
    memset (res, 0, (size_t) size);
  return res;
}

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static char* find_separate_debug_file ( bfd abfd,
const char *  debug_file_directory 
) [static]

Definition at line 1209 of file opncls.c.

{
  char *basename;
  char *dir;
  char *debugfile;
  unsigned long crc32;
  int i;

  BFD_ASSERT (abfd);
  if (debug_file_directory == NULL)
    debug_file_directory = ".";

  /* BFD may have been opened from a stream.  */
  if (! abfd->filename)
    return NULL;

  basename = get_debug_link_info (abfd, & crc32);
  if (basename == NULL)
    return NULL;

  if (strlen (basename) < 1)
    {
      free (basename);
      return NULL;
    }

  dir = strdup (abfd->filename);
  if (dir == NULL)
    {
      free (basename);
      return NULL;
    }
  BFD_ASSERT (strlen (dir) != 0);

  /* Strip off filename part.  */
  for (i = strlen (dir) - 1; i >= 0; i--)
    if (IS_DIR_SEPARATOR (dir[i]))
      break;

  dir[i + 1] = '\0';
  BFD_ASSERT (dir[i] == '/' || dir[0] == '\0');

  debugfile = malloc (strlen (debug_file_directory) + 1
                    + strlen (dir)
                    + strlen (".debug/")
                    + strlen (basename)
                    + 1);
  if (debugfile == NULL)
    {
      free (basename);
      free (dir);
      return NULL;
    }

  /* First try in the same directory as the original file:  */
  strcpy (debugfile, dir);
  strcat (debugfile, basename);

  if (separate_debug_file_exists (debugfile, crc32))
    {
      free (basename);
      free (dir);
      return debugfile;
    }

  /* Then try in a subdirectory called .debug.  */
  strcpy (debugfile, dir);
  strcat (debugfile, ".debug/");
  strcat (debugfile, basename);

  if (separate_debug_file_exists (debugfile, crc32))
    {
      free (basename);
      free (dir);
      return debugfile;
    }

  /* Then try in the global debugfile directory.  */
  strcpy (debugfile, debug_file_directory);
  i = strlen (debug_file_directory) - 1;
  if (i > 0
      && debug_file_directory[i] != '/'
      && dir[0] != '/')
    strcat (debugfile, "/");
  strcat (debugfile, dir);
  strcat (debugfile, basename);

  if (separate_debug_file_exists (debugfile, crc32))
    {
      free (basename);
      free (dir);
      return debugfile;
    }

  free (debugfile);
  free (basename);
  free (dir);
  return NULL;
}

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static char* get_debug_link_info ( bfd abfd,
unsigned long crc32_out 
) [static]

Definition at line 1122 of file opncls.c.

{
  asection *sect;
  unsigned long crc32;
  bfd_byte *contents;
  int crc_offset;
  char *name;

  BFD_ASSERT (abfd);
  BFD_ASSERT (crc32_out);

  sect = bfd_get_section_by_name (abfd, GNU_DEBUGLINK);

  if (sect == NULL)
    return NULL;

  if (!bfd_malloc_and_get_section (abfd, sect, &contents))
    {
      if (contents != NULL)
       free (contents);
      return NULL;
    }

  /* Crc value is stored after the filename, aligned up to 4 bytes.  */
  name = (char *) contents;
  crc_offset = strlen (name) + 1;
  crc_offset = (crc_offset + 3) & ~3;

  crc32 = bfd_get_32 (abfd, contents + crc_offset);

  *crc32_out = crc32;
  return name;
}

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static int opncls_bclose ( struct bfd abfd) [static]

Definition at line 477 of file opncls.c.

{
  struct opncls *vec = abfd->iostream;
  /* Since the VEC's memory is bound to the bfd deleting the bfd will
     free it.  */
  int status = 0;
  if (vec->close != NULL)
    status = (vec->close) (abfd, vec->stream);
  abfd->iostream = NULL;
  return status;
}
static int opncls_bflush ( struct bfd *abfd  ATTRIBUTE_UNUSED) [static]

Definition at line 490 of file opncls.c.

{
  return 0;
}
static file_ptr opncls_bread ( struct bfd abfd,
void *  buf,
file_ptr  nbytes 
) [static]

Definition at line 458 of file opncls.c.

{
  struct opncls *vec = abfd->iostream;
  file_ptr nread = (vec->pread) (abfd, vec->stream, buf, nbytes, vec->where);
  if (nread < 0)
    return nread;
  vec->where += nread;
  return nread;
}
static int opncls_bseek ( struct bfd abfd,
file_ptr  offset,
int  whence 
) [static]

Definition at line 445 of file opncls.c.

{
  struct opncls *vec = abfd->iostream;
  switch (whence)
    {
    case SEEK_SET: vec->where = offset; break;
    case SEEK_CUR: vec->where += offset; break;
    case SEEK_END: return -1;
    }
  return 0;
}
static int opncls_bstat ( struct bfd abfd,
struct stat sb 
) [static]

Definition at line 496 of file opncls.c.

{
  struct opncls *vec = abfd->iostream;

  memset (sb, 0, sizeof (*sb));
  if (vec->stat == NULL)
    return 0;

  return (vec->stat) (abfd, vec->stream, sb);
}

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static file_ptr opncls_btell ( struct bfd abfd) [static]

Definition at line 438 of file opncls.c.

{
  struct opncls *vec = abfd->iostream;
  return vec->where;
}
static file_ptr opncls_bwrite ( struct bfd *abfd  ATTRIBUTE_UNUSED,
const void *where  ATTRIBUTE_UNUSED,
file_ptr nbytes  ATTRIBUTE_UNUSED 
) [static]

Definition at line 469 of file opncls.c.

{
  return -1;
}
static bfd_boolean separate_debug_file_exists ( const char *  name,
const unsigned long  crc 
) [static]

Definition at line 1170 of file opncls.c.

{
  static unsigned char buffer [8 * 1024];
  unsigned long file_crc = 0;
  int fd;
  bfd_size_type count;

  BFD_ASSERT (name);

  fd = open (name, O_RDONLY);
  if (fd < 0)
    return FALSE;

  while ((count = read (fd, buffer, sizeof (buffer))) > 0)
    file_crc = bfd_calc_gnu_debuglink_crc32 (file_crc, buffer, count);

  close (fd);

  return crc == file_crc;
}

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Variable Documentation

Definition at line 42 of file opncls.c.

struct bfd_iovec [static]
Initial value:

Definition at line 507 of file opncls.c.