diff options
| author | H.J. Lu <hjl.tools@gmail.com> | 2015-10-16 04:17:49 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2015-10-16 04:21:03 -0700 |
| commit | 75a06c790f96f07e859be95d3c3c084a718afeef (patch) | |
| tree | 0bfcfdf1a076b872319aa77ccd463188a206b0a9 | |
| parent | b31bcacc489d6ede2e9bdfa9905de0ebfd919454 (diff) | |
| download | gdb-75a06c790f96f07e859be95d3c3c084a718afeef.zip gdb-75a06c790f96f07e859be95d3c3c084a718afeef.tar.gz gdb-75a06c790f96f07e859be95d3c3c084a718afeef.tar.bz2 | |
Check if symbol is defined when converting mov to lea
We need to check if symbol is defined when converting mov to lea since
SYMBOL_REFERENCES_LOCAL may return true on hidden undefined symbols.
* elf32-i386.c (elf_i386_convert_mov_to_lea): Check if symbol
is defined.
* elf64-x86-64.c (elf_x86_64_convert_mov_to_lea): Likewise.
| -rw-r--r-- | bfd/ChangeLog | 6 | ||||
| -rw-r--r-- | bfd/elf32-i386.c | 4 | ||||
| -rw-r--r-- | bfd/elf64-x86-64.c | 4 |
3 files changed, 12 insertions, 2 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog index d26a526..d371594 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,5 +1,11 @@ 2015-10-16 H.J. Lu <hongjiu.lu@intel.com> + * elf32-i386.c (elf_i386_convert_mov_to_lea): Check if symbol + is defined. + * elf64-x86-64.c (elf_x86_64_convert_mov_to_lea): Likewise. + +2015-10-16 H.J. Lu <hongjiu.lu@intel.com> + * elf32-i386.c (elf_i386_convert_mov_to_lea): Don't check def_regular. * elf64-x86-64.c (elf_x86_64_convert_mov_to_lea): Likewise. diff --git a/bfd/elf32-i386.c b/bfd/elf32-i386.c index 2e5c04d..8c1dadb 100644 --- a/bfd/elf32-i386.c +++ b/bfd/elf32-i386.c @@ -2815,7 +2815,9 @@ elf_i386_convert_mov_to_lea (bfd *abfd, asection *sec, /* STT_GNU_IFUNC must keep R_386_GOT32 relocation. We also avoid optimizing _DYNAMIC since ld.so may use its link-time address. */ - if (h->type != STT_GNU_IFUNC + if ((h->root.type == bfd_link_hash_defined + || h->root.type == bfd_link_hash_defweak) + && h->type != STT_GNU_IFUNC && h != htab->elf.hdynamic && SYMBOL_REFERENCES_LOCAL (link_info, h) && irel->r_offset >= 2 diff --git a/bfd/elf64-x86-64.c b/bfd/elf64-x86-64.c index aad3244..dc5fd0d 100644 --- a/bfd/elf64-x86-64.c +++ b/bfd/elf64-x86-64.c @@ -3074,7 +3074,9 @@ elf_x86_64_convert_mov_to_lea (bfd *abfd, asection *sec, /* STT_GNU_IFUNC must keep R_X86_64_GOTPCREL relocation. We also avoid optimizing _DYNAMIC since ld.so may use its link-time address. */ - if (h->type != STT_GNU_IFUNC + if ((h->root.type == bfd_link_hash_defined + || h->root.type == bfd_link_hash_defweak) + && h->type != STT_GNU_IFUNC && h != htab->elf.hdynamic && SYMBOL_REFERENCES_LOCAL (link_info, h)) { |