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| author | H.J. Lu <hjl.tools@gmail.com> | 2022-07-18 18:24:26 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2022-07-19 08:41:52 -0700 |
| commit | f638657759f5b9b4eb31a1aa6b9fe6e6fb01f4a0 (patch) | |
| tree | 8be7ee0ba0f54495fab063d3a6fb7c626afa2b88 /bfd/elfxx-x86.h | |
| parent | d19a265487eda186b6977d9d15648cda9fad3298 (diff) | |
| download | gdb-f638657759f5b9b4eb31a1aa6b9fe6e6fb01f4a0.zip gdb-f638657759f5b9b4eb31a1aa6b9fe6e6fb01f4a0.tar.gz gdb-f638657759f5b9b4eb31a1aa6b9fe6e6fb01f4a0.tar.bz2 | |
x86: Disallow invalid relocations against protected symbols
Since glibc 2.36 will issue warnings for copy relocation against
protected symbols and non-canonical reference to canonical protected
functions, change the linker to always disallow such relocations.
bfd/
* elf32-i386.c (elf_i386_scan_relocs): Remove check for
elf_has_indirect_extern_access.
* elf64-x86-64.c (elf_x86_64_scan_relocs): Likewise.
(elf_x86_64_relocate_section): Remove check for
elf_has_no_copy_on_protected.
* elfxx-x86.c (elf_x86_allocate_dynrelocs): Check for building
executable instead of elf_has_no_copy_on_protected.
(_bfd_x86_elf_adjust_dynamic_symbol): Disallow copy relocation
against non-copyable protected symbol.
* elfxx-x86.h (SYMBOL_NO_COPYRELOC): Remove check for
elf_has_no_copy_on_protected.
ld/
* testsuite/ld-i386/i386.exp: Expect linker error for PR ld/17709
test.
* testsuite/ld-i386/pr17709.rd: Removed.
* testsuite/ld-i386/pr17709.err: New file.
* testsuite/ld-x86-64/pr17709.rd: Removed.
* testsuite/ld-x86-64/pr17709.err: New file.
* testsuite/ld-x86-64/pr28875-func.err: Updated.
* testsuite/ld-x86-64/x86-64.exp: Expect linker error for PR
ld/17709 test. Add tests for function pointer against protected
function.
Diffstat (limited to 'bfd/elfxx-x86.h')
| -rw-r--r-- | bfd/elfxx-x86.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/bfd/elfxx-x86.h b/bfd/elfxx-x86.h index 77fb1ad..7d23893 100644 --- a/bfd/elfxx-x86.h +++ b/bfd/elfxx-x86.h @@ -135,12 +135,11 @@ /* Should copy relocation be generated for a symbol. Don't generate copy relocation against a protected symbol defined in a shared - object with GNU_PROPERTY_NO_COPY_ON_PROTECTED. */ + object. */ #define SYMBOL_NO_COPYRELOC(INFO, EH) \ ((EH)->def_protected \ && ((EH)->elf.root.type == bfd_link_hash_defined \ || (EH)->elf.root.type == bfd_link_hash_defweak) \ - && elf_has_no_copy_on_protected ((EH)->elf.root.u.def.section->owner) \ && ((EH)->elf.root.u.def.section->owner->flags & DYNAMIC) != 0 \ && ((EH)->elf.root.u.def.section->flags & SEC_CODE) == 0) |