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* compress.c: Reinstate 2012-10-19 change. 

(bfd_get_full_section_contents): Don't free unless we alloc.
	Use proper decompress size.  Delete some vars, rename others.
This commit is contained in:
Alan Modra 2012-10-20 08:27:13 +00:00
parent 4a43d85f8c
commit 38b774d28c
2 changed files with 23 additions and 20 deletions
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6
bfd/ChangeLog
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@ -1,3 +1,9 @@
2012-10-20 Alan Modra <amodra@gmail.com>
* compress.c: Reinstate 2012-10-19 change.
(bfd_get_full_section_contents): Don't free unless we alloc.
Use proper decompress size. Delete some vars, rename others.
2012-10-19 Tom Tromey <tromey@redhat.com>
* compress.c: Revert previous patch.

37
bfd/compress.c
View File

@ -161,11 +161,9 @@ bfd_get_full_section_contents (bfd *abfd, sec_ptr sec, bfd_byte **ptr)
bfd_byte *p = *ptr;
#ifdef HAVE_ZLIB_H
bfd_boolean ret;
bfd_size_type compressed_size;
bfd_size_type uncompressed_size;
bfd_size_type rawsize;
bfd_size_type save_size;
bfd_size_type save_rawsize;
bfd_byte *compressed_buffer;
bfd_byte *uncompressed_buffer;
#endif
if (abfd->direction != write_direction && sec->rawsize != 0)
@ -199,45 +197,44 @@ bfd_get_full_section_contents (bfd *abfd, sec_ptr sec, bfd_byte **ptr)
return FALSE;
#else
/* Read in the full compressed section contents. */
uncompressed_size = sec->size;
compressed_size = sec->compressed_size;
compressed_buffer = (bfd_byte *) bfd_malloc (compressed_size);
compressed_buffer = (bfd_byte *) bfd_malloc (sec->compressed_size);
if (compressed_buffer == NULL)
return FALSE;
rawsize = sec->rawsize;
save_rawsize = sec->rawsize;
save_size = sec->size;
/* Clear rawsize, set size to compressed size and set compress_status
to COMPRESS_SECTION_NONE. If the compressed size is bigger than
the uncompressed size, bfd_get_section_contents will fail. */
sec->rawsize = 0;
sec->size = compressed_size;
sec->size = sec->compressed_size;
sec->compress_status = COMPRESS_SECTION_NONE;
ret = bfd_get_section_contents (abfd, sec, compressed_buffer,
0, compressed_size);
0, sec->compressed_size);
/* Restore rawsize and size. */
sec->rawsize = rawsize;
sec->size = uncompressed_size;
sec->rawsize = save_rawsize;
sec->size = save_size;
sec->compress_status = DECOMPRESS_SECTION_SIZED;
if (!ret)
goto fail_compressed;
uncompressed_buffer = (bfd_byte *) bfd_malloc (uncompressed_size);
if (uncompressed_buffer == NULL)
if (p == NULL)
p = (bfd_byte *) bfd_malloc (sz);
if (p == NULL)
goto fail_compressed;
if (!decompress_contents (compressed_buffer, compressed_size,
uncompressed_buffer, uncompressed_size))
if (!decompress_contents (compressed_buffer, sec->compressed_size, p, sz))
{
bfd_set_error (bfd_error_bad_value);
free (uncompressed_buffer);
if (p != *ptr)
free (p);
fail_compressed:
free (compressed_buffer);
return FALSE;
}
free (compressed_buffer);
sec->contents = uncompressed_buffer;
sec->compress_status = COMPRESS_SECTION_DONE;
/* Fall thru */
*ptr = p;
return TRUE;
#endif
case COMPRESS_SECTION_DONE: