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PR ld/12451

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* elfcode.h (elf_checksum_contents): Read in the section's
	contents if they are not already available.
	* compress.c (bfd_get_full_section_contents): Use zmalloc to
	allocate the buffers so that excess bytes are guaranteed to be
	zero.
This commit is contained in:
Nick Clifton 2011-12-14 11:50:13 +00:00
parent a455111938
commit 4d48ecf313
3 changed files with 31 additions and 2 deletions
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9
bfd/ChangeLog
View File

@ -1,3 +1,12 @@
2011-12-14 Nick Clifton <nickc@redhat.com>
PR ld/12451
* elfcode.h (elf_checksum_contents): Read in the section's
contents if they are not already available.
* compress.c (bfd_get_full_section_contents): Use zmalloc to
allocate the buffers so that excess bytes are guaranteed to be
zero.
2011-12-14 Iain Sandoe <iains@gcc.gnu.org>
* mach-o-i386.c (text_section_names_xlat): New table.

4
bfd/compress.c
View File

@ -181,7 +181,7 @@ bfd_get_full_section_contents (bfd *abfd, sec_ptr sec, bfd_byte **ptr)
case COMPRESS_SECTION_NONE:
if (p == NULL)
{
p = (bfd_byte *) bfd_malloc (sz);
p = (bfd_byte *) bfd_zmalloc (sz);
if (p == NULL)
return FALSE;
}
@ -221,7 +221,7 @@ bfd_get_full_section_contents (bfd *abfd, sec_ptr sec, bfd_byte **ptr)
if (!ret)
goto fail_compressed;
uncompressed_buffer = (bfd_byte *) bfd_malloc (uncompressed_size);
uncompressed_buffer = (bfd_byte *) bfd_zmalloc (uncompressed_size);
if (uncompressed_buffer == NULL)
goto fail_compressed;

20
bfd/elfcode.h
View File

@ -1097,8 +1097,28 @@ elf_checksum_contents (bfd *abfd,
elf_swap_shdr_out (abfd, &i_shdr, &x_shdr);
(*process) (&x_shdr, sizeof x_shdr, arg);
/* PR ld/12451:
Process the section's contents; reading them in if necessary. */
if (i_shdr.contents)
(*process) (i_shdr.contents, i_shdr.sh_size, arg);
else
{
asection *sec;
sec = bfd_section_from_elf_index (abfd, count);
if (sec != NULL)
{
if (sec->contents == NULL)
{
/* Force rereading from file. */
sec->flags &= ~SEC_IN_MEMORY;
if (! bfd_malloc_and_get_section (abfd, sec, & sec->contents))
continue;
}
if (sec->contents != NULL)
(*process) (sec->contents, i_shdr.sh_size, arg);
}
}
}
return TRUE;