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* elf.c (write_zeros): New function.

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(assign_file_positions_for_load_sections): Allocate file space for
	NOBITS sections that are followed by PROGBITS sections in a segment.
This commit is contained in:
Alan Modra
2009-12-08 03:43:23 +00:00
parent 087d837e04
commit 3281215912
2 changed files with 31 additions and 0 deletions
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6
bfd/ChangeLog
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@ -1,3 +1,9 @@
2009-12-08 Alan Modra <amodra@bigpond.net.au>
* elf.c (write_zeros): New function.
(assign_file_positions_for_load_sections): Allocate file space for
NOBITS sections that are followed by PROGBITS sections in a segment.
2009-12-03 Tristan Gingold <gingold@adacore.com> 2009-12-03 Tristan Gingold <gingold@adacore.com>
* mach-o.c (bfd_mach_o_make_bfd_section): Force debug flags for * mach-o.c (bfd_mach_o_make_bfd_section): Force debug flags for

25
bfd/elf.c
View File

@ -4127,6 +4127,22 @@ print_segment_map (const struct elf_segment_map *m)
putc ('\n',stderr); putc ('\n',stderr);
} }
static bfd_boolean
write_zeros (bfd *abfd, file_ptr pos, bfd_size_type len)
{
void *buf;
bfd_boolean ret;
if (bfd_seek (abfd, pos, SEEK_SET) != 0)
return FALSE;
buf = bfd_zmalloc (len);
if (buf == NULL)
return FALSE;
ret = bfd_bwrite (buf, len, abfd) == len;
free (buf);
return ret;
}
/* Assign file positions to the sections based on the mapping from /* Assign file positions to the sections based on the mapping from
sections to segments. This function also sets up some fields in sections to segments. This function also sets up some fields in
the file header. */ the file header. */
@ -4448,6 +4464,15 @@ assign_file_positions_for_load_sections (bfd *abfd,
if (this_hdr->sh_type != SHT_NOBITS) if (this_hdr->sh_type != SHT_NOBITS)
{ {
if (p->p_filesz + adjust < p->p_memsz)
{
/* We have a PROGBITS section following NOBITS ones.
Allocate file space for the NOBITS section(s) and
zero it. */
adjust = p->p_memsz - p->p_filesz;
if (!write_zeros (abfd, off, adjust))
return FALSE;
}
off += adjust; off += adjust;
p->p_filesz += adjust; p->p_filesz += adjust;
} }