diff options
| author | H.J. Lu <hjl.tools@gmail.com> | 2018-03-08 06:36:40 -0800 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2018-03-08 06:36:52 -0800 |
| commit | 347a87745eab23d8427349787bde4a938a1e8c3e (patch) | |
| tree | 61bd3dccb63977b684ce6097e55953e3dd3c3de6 /bfd/elf64-x86-64.c | |
| parent | bd5dea8822e515faf305690ca5c5281132d95587 (diff) | |
| download | gdb-347a87745eab23d8427349787bde4a938a1e8c3e.zip gdb-347a87745eab23d8427349787bde4a938a1e8c3e.tar.gz gdb-347a87745eab23d8427349787bde4a938a1e8c3e.tar.bz2 | |
x86: Treat relocation against IFUNC symbol as FUNC
When resolving a relocation against IFUNC symbol in a SHT_NOTE section
without SHF_ALLOC, we treat it as relocation against FUNC symbol since
it needs the address of IFUNC symbol, not the address returned by IFUNC
function.
bfd/
PR ld/22929
* elf32-i386.c (elf_i386_relocate_section): Treat relocation
against IFUNC symbol in SHT_NOTE section without SHF_ALLOC as
relocation against FUNC symbol.
* elf64-x86-64.c (elf_x86_64_relocate_section): Likewise.
ld/
PR ld/22929
* testsuite/ld-i386/i386.exp: Run PR ld/22929 test.
* testsuite/ld-x86-64/x86-64.exp: Likewise.
* testsuite/ld-i386/pr22929.d: New file.
* testsuite/ld-i386/pr22929.s: Likewise.
* testsuite/ld-x86-64/pr22929.d: Likewise.
* testsuite/ld-x86-64/pr22929.s: Likewise.
Diffstat (limited to 'bfd/elf64-x86-64.c')
| -rw-r--r-- | bfd/elf64-x86-64.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/bfd/elf64-x86-64.c b/bfd/elf64-x86-64.c index 7016964..a964316 100644 --- a/bfd/elf64-x86-64.c +++ b/bfd/elf64-x86-64.c @@ -2503,6 +2503,10 @@ elf_x86_64_relocate_section (bfd *output_bfd, if ((input_section->flags & SEC_ALLOC) == 0) { + /* If this is a SHT_NOTE section without SHF_ALLOC, treat + STT_GNU_IFUNC symbol as STT_FUNC. */ + if (elf_section_type (input_section) == SHT_NOTE) + goto skip_ifunc; /* Dynamic relocs are not propagated for SEC_DEBUGGING sections because such sections are not SEC_ALLOC and thus ld.so will not process them. */ @@ -2726,6 +2730,7 @@ do_ifunc_pointer: } } +skip_ifunc: resolved_to_zero = (eh != NULL && UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh)); |