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| author | Kwok Cheung Yeung <kcy@codesourcery.com> | 2014-04-17 14:13:44 +0100 |
|---|---|---|
| committer | Kwok Cheung Yeung <kcy@codesourcery.com> | 2014-04-17 14:40:08 +0100 |
| commit | cb22ccf4110d82441b8d56875419d871f10f3f8f (patch) | |
| tree | 0b8eaab30333307e9e072bdd29dde106094a69b9 /bfd/ChangeLog | |
| parent | 7ce16bd4c4d5e6f6a48ca7fcf532720fec0406bf (diff) | |
| download | gdb-cb22ccf4110d82441b8d56875419d871f10f3f8f.zip gdb-cb22ccf4110d82441b8d56875419d871f10f3f8f.tar.gz gdb-cb22ccf4110d82441b8d56875419d871f10f3f8f.tar.bz2 | |
This patch causes local GOT entries addressed via a 16-bit index to
be placed towards the front of local GOT space, while entries addressed
via a 32-bit index are placed towards the rear.
Provided that there are fewer than ~16K local GOT entries addressed via
a 16-bit index in total, this should eliminate any relocation overflows
caused by such GOT entries being allocated beyond the addressable range.
bfd/
* elfxx-mips.c (struct mips_got_info): Delete assigned_gotno
field. Add assigned_low_gotno and assigned_high_gotno fields.
(mips_elf_create_local_got_entry): Update out-of-space condition.
Set index of new GOT entry to assigned_low_gotno if required by
the current relocation, else set it to assigned_high_gotno.
(mips_elf_set_global_gotidx): Replace uses of assigned_gotno
with assigned_low_gotno.
(mips_elf_multi_got): Initialize assigned_low_gotno and
assigned_high_gotno in secondary GOTs. Use assigned_low_gotno
in place of assigned_gotno when handling global GOT entries.
(mips_elf_lay_out_got): Initialize assigned_low_gotno and
assigned_high_gotno.
(_bfd_mips_elf_finish_dynamic_sections): Account for a possible
gap in the middle of local GOT space.
ld/testsuite/
* ld-mips-elf/elf-rel-xgot-n32.d: Update for new GOT layout.
* ld-mips-elf/elf-rel-xgot-n32-embed.d: Likewise.
* ld-mips-elf/elf-rel-xgot-n64.d: Likewise.
* ld-mips-elf/elf-rel-xgot-n64-embed.d: Likewise.
* ld-mips-elf/elf-rel-xgot-n64-linux.d: Likewise.
Diffstat (limited to 'bfd/ChangeLog')
| -rw-r--r-- | bfd/ChangeLog | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog index bf71f22..b15ff5c 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,20 @@ +2014-04-17 Kwok Cheung Yeung <kcy@codesourcery.com> + + * elfxx-mips.c (struct mips_got_info): Delete assigned_gotno + field. Add assigned_low_gotno and assigned_high_gotno fields. + (mips_elf_create_local_got_entry): Update out-of-space condition. + Set index of new GOT entry to assigned_low_gotno if required by + the current relocation, else set it to assigned_high_gotno. + (mips_elf_set_global_gotidx): Replace uses of assigned_gotno + with assigned_low_gotno. + (mips_elf_multi_got): Initialize assigned_low_gotno and + assigned_high_gotno in secondary GOTs. Use assigned_low_gotno + in place of assigned_gotno when handling global GOT entries. + (mips_elf_lay_out_got): Initialize assigned_low_gotno and + assigned_high_gotno. + (_bfd_mips_elf_finish_dynamic_sections): Account for a possible + gap in the middle of local GOT space. + 2014-04-17 Alan Modra <amodra@gmail.com> PR 16846 |