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| author | Alan Modra <amodra@gmail.com> | 2014-12-12 22:53:46 +1030 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2014-12-12 23:35:50 +1030 |
| commit | 6cabe1ea460c54c17ac877b2541eccf91d6b4b9c (patch) | |
| tree | 84b29c5ddba5350b966e8bb9a2b97b2914579caa /bfd/ChangeLog | |
| parent | 21daaaaffcbda47b724858dd99ee2082043ef2da (diff) | |
| download | gdb-6cabe1ea460c54c17ac877b2541eccf91d6b4b9c.zip gdb-6cabe1ea460c54c17ac877b2541eccf91d6b4b9c.tar.gz gdb-6cabe1ea460c54c17ac877b2541eccf91d6b4b9c.tar.bz2 | |
Copy relocations against protected symbols
Copy relocs are used in a scheme to avoid dynamic text relocations in
non-PIC executables that refer to variables defined in shared
libraries. The idea is to have the linker define any such variable in
the executable, with a copy reloc copying the initial value, then have
both the executable and shared library refer to the executable copy.
If the shared library defines the variable as protected then we have
two copies of the variable being used.
PR 15228
* elflink.c (_bfd_elf_adjust_dynamic_copy): Add "info" param.
Error on copy relocs against protected symbols.
(elf_merge_st_other): Set h->protected_def.
* elf-bfd.h (struct elf_link_hash_entry): Add "protected_def".
(_bfd_elf_adjust_dynamic_copy): Update prototype.
* elf-m10300.c (_bfd_mn10300_elf_adjust_dynamic_symbol): Update
_bfd_elf_adjust_dynamic_copy call.
* elf32-arm.c (elf32_arm_adjust_dynamic_symbol): Likewise.
* elf32-cr16.c (_bfd_cr16_elf_adjust_dynamic_symbol): Likewise.
* elf32-cris.c (elf_cris_adjust_dynamic_symbol): Likewise.
* elf32-hppa.c (elf32_hppa_adjust_dynamic_symbol): Likewise.
* elf32-i370.c (i370_elf_adjust_dynamic_symbol): Likewise.
* elf32-i386.c (elf_i386_adjust_dynamic_symbol): Likewise.
* elf32-lm32.c (lm32_elf_adjust_dynamic_symbol): Likewise.
* elf32-m32r.c (m32r_elf_adjust_dynamic_symbol): Likewise.
* elf32-m68k.c (elf_m68k_adjust_dynamic_symbol): Likewise.
* elf32-metag.c (elf_metag_adjust_dynamic_symbol): Likewise.
* elf32-or1k.c (or1k_elf_adjust_dynamic_symbol): Likewise.
* elf32-ppc.c (ppc_elf_adjust_dynamic_symbol): Likewise.
* elf32-s390.c (elf_s390_adjust_dynamic_symbol): Likewise.
* elf32-sh.c (sh_elf_adjust_dynamic_symbol): Likewise.
* elf32-tic6x.c (elf32_tic6x_adjust_dynamic_symbol): Likewise.
* elf32-tilepro.c (tilepro_elf_adjust_dynamic_symbol): Likewise.
* elf32-vax.c (elf_vax_adjust_dynamic_symbol): Likewise.
* elf64-ppc.c (ppc64_elf_adjust_dynamic_symbol): Likewise.
* elf64-s390.c (elf_s390_adjust_dynamic_symbol): Likewise.
* elf64-sh64.c (sh64_elf64_adjust_dynamic_symbol): Likewise.
* elf64-x86-64.c (elf_x86_64_adjust_dynamic_symbol): Likewise.
* elfnn-aarch64.c (elfNN_aarch64_adjust_dynamic_symbol): Likewise.
* elfxx-mips.c (_bfd_mips_elf_adjust_dynamic_symbol): Likewise.
* elfxx-sparc.c (_bfd_sparc_elf_adjust_dynamic_symbol): Likewise.
* elfxx-tilegx.c (tilegx_elf_adjust_dynamic_symbol): Likewise.
Diffstat (limited to 'bfd/ChangeLog')
| -rw-r--r-- | bfd/ChangeLog | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog index 9443507..0db2820 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,39 @@ +2014-12-12 Alan Modra <amodra@gmail.com> + + PR 15228 + * elflink.c (_bfd_elf_adjust_dynamic_copy): Add "info" param. + Error on copy relocs against protected symbols. + (elf_merge_st_other): Set h->protected_def. + * elf-bfd.h (struct elf_link_hash_entry): Add "protected_def". + (_bfd_elf_adjust_dynamic_copy): Update prototype. + * elf-m10300.c (_bfd_mn10300_elf_adjust_dynamic_symbol): Update + _bfd_elf_adjust_dynamic_copy call. + * elf32-arm.c (elf32_arm_adjust_dynamic_symbol): Likewise. + * elf32-cr16.c (_bfd_cr16_elf_adjust_dynamic_symbol): Likewise. + * elf32-cris.c (elf_cris_adjust_dynamic_symbol): Likewise. + * elf32-hppa.c (elf32_hppa_adjust_dynamic_symbol): Likewise. + * elf32-i370.c (i370_elf_adjust_dynamic_symbol): Likewise. + * elf32-i386.c (elf_i386_adjust_dynamic_symbol): Likewise. + * elf32-lm32.c (lm32_elf_adjust_dynamic_symbol): Likewise. + * elf32-m32r.c (m32r_elf_adjust_dynamic_symbol): Likewise. + * elf32-m68k.c (elf_m68k_adjust_dynamic_symbol): Likewise. + * elf32-metag.c (elf_metag_adjust_dynamic_symbol): Likewise. + * elf32-or1k.c (or1k_elf_adjust_dynamic_symbol): Likewise. + * elf32-ppc.c (ppc_elf_adjust_dynamic_symbol): Likewise. + * elf32-s390.c (elf_s390_adjust_dynamic_symbol): Likewise. + * elf32-sh.c (sh_elf_adjust_dynamic_symbol): Likewise. + * elf32-tic6x.c (elf32_tic6x_adjust_dynamic_symbol): Likewise. + * elf32-tilepro.c (tilepro_elf_adjust_dynamic_symbol): Likewise. + * elf32-vax.c (elf_vax_adjust_dynamic_symbol): Likewise. + * elf64-ppc.c (ppc64_elf_adjust_dynamic_symbol): Likewise. + * elf64-s390.c (elf_s390_adjust_dynamic_symbol): Likewise. + * elf64-sh64.c (sh64_elf64_adjust_dynamic_symbol): Likewise. + * elf64-x86-64.c (elf_x86_64_adjust_dynamic_symbol): Likewise. + * elfnn-aarch64.c (elfNN_aarch64_adjust_dynamic_symbol): Likewise. + * elfxx-mips.c (_bfd_mips_elf_adjust_dynamic_symbol): Likewise. + * elfxx-sparc.c (_bfd_sparc_elf_adjust_dynamic_symbol): Likewise. + * elfxx-tilegx.c (tilegx_elf_adjust_dynamic_symbol): Likewise. + 2014-12-11 Keith Seitz <keiths@redhat.com> * elf.c (elf_parse_notes): Define convenience macro |