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* elf32-i386.c (elf_i386_relocate_section): Zero section contents

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for R_386_32 and R_386_PC32 relocs against symbols defined in
	discarded sections.
This commit is contained in:
Alan Modra 2004-08-25 14:35:58 +00:00
parent b18c562e39
commit f855931bbd
2 changed files with 20 additions and 3 deletions
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8
bfd/ChangeLog
View File

@ -1,9 +1,15 @@
2004-08-25 Alan Modra <amodra@bigpond.net.au>
* elf32-i386.c (elf_i386_relocate_section): Zero section contents
for R_386_32 and R_386_PC32 relocs against symbols defined in
discarded sections.
2004-08-25 Dmitry Diky <diwil@spec.ru>
* reloc.c (BFD_RELOC_MSP430_2X_PCREL,BFD_RELOC_MSP430_RL_PCREL):
Add new relocations.
* bfd-in2.h: Regenerate.
* libbfd.h: Regenerate..
* libbfd.h: Regenerate.
* elf32-msp430.c: Clean-up code.
(elf_msp430_howto_table): Add new relocation entries.
(bfd_elf32_bfd_reloc_type_lookup): New relocation handlers.

15
bfd/elf32-i386.c
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@ -2319,8 +2319,19 @@ elf_i386_relocate_section (bfd *output_bfd,
/* r_symndx will be zero only for relocs against symbols
from removed linkonce sections, or sections discarded by
a linker script. */
if (r_symndx == 0
|| (input_section->flags & SEC_ALLOC) == 0)
if (r_symndx == 0)
{
/* Zero the section contents. eh_frame generated by old
versions of gcc isn't edited by elf-eh-frame.c, so
FDEs for discarded linkonce functions might remain.
Putting zeros here will zero such FDE's address range.
This is a hint to unwinders and other consumers of
exception handling info that the FDE is invalid. */
bfd_put_32 (input_bfd, 0, contents + rel->r_offset);
continue;
}
if ((input_section->flags & SEC_ALLOC) == 0)
break;
if ((info->shared