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| author | H.J. Lu <hjl.tools@gmail.com> | 2021-03-18 20:46:28 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2021-03-18 20:57:02 -0700 |
| commit | 3818d4ab066ee40b976513b247b5da5f20379b66 (patch) | |
| tree | ebb68ff9dea8c35f68178204ce3de18989126655 /bfd/elf.c | |
| parent | 51f6e7a9f4210aed0f8156c1d2e348de6f96f37d (diff) | |
| download | gdb-3818d4ab066ee40b976513b247b5da5f20379b66.zip gdb-3818d4ab066ee40b976513b247b5da5f20379b66.tar.gz gdb-3818d4ab066ee40b976513b247b5da5f20379b66.tar.bz2 | |
elf: Handle .gnu.debuglto_.debug_* sections
commit 994b25132814f4c2be93ce53a616a74139c4cf3c
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Sun Jan 17 20:01:16 2021 -0800
ld/elf: Ignore section symbols when matching linkonce with comdat
ignored section symbols when comparing symbols in 2 sections. Since all
references to debugging sections are done with section symbols, symbols
in debugging sections are ignored and we fail to match symbols in comdat
debugging sections. Also .gnu.debuglto_.debug_* sections aren't treated
as debugging sections.
1. Treate .gnu.debuglto_.debug_ section as debugging section unless it
is marked with SHF_EXCLUDE.
2. Revert commit 994b2513281 in elf_create_symbuf.
3. Ignore section symbols only when matching non-debugging sections or
linkonce section with comdat section.
bfd/
PR ld/27590
* elf.c (_bfd_elf_make_section_from_shdr): Treate
.gnu.debuglto_.debug_ section as debugging section unless it is
marked with SHF_EXCLUDE.
* elflink.c (elf_create_symbuf): Revert commit 994b2513281.
(bfd_elf_match_symbols_in_sections): Ignore section symbols when
matching non-debugging sections or linkonce section with comdat
section.
ld/
PR ld/27590
* testsuite/ld-elf/pr27590.s: New file.
* testsuite/ld-elf/pr27590a.d: Likewise.
* testsuite/ld-elf/pr27590b.d: Likewise.
* testsuite/ld-i386/i386.exp: Also run ld/27193 test with
--reduce-memory-overheads.
Diffstat (limited to 'bfd/elf.c')
| -rw-r--r-- | bfd/elf.c | 4 |
1 files changed, 4 insertions, 0 deletions
@@ -1085,6 +1085,10 @@ _bfd_elf_make_section_from_shdr (bfd *abfd, if (name [0] == '.') { if (strncmp (name, ".debug", 6) == 0 + /* NB: Treate .gnu.debuglto_.debug_ section as debugging + section unless it is marked with SHF_EXCLUDE. */ + || ((flags & SEC_EXCLUDE) == 0 + && strncmp (name, ".gnu.debuglto_.debug_", 21) == 0) || strncmp (name, ".gnu.linkonce.wi.", 17) == 0 || strncmp (name, ".zdebug", 7) == 0) flags |= SEC_DEBUGGING | SEC_ELF_OCTETS; |