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| author | H.J. Lu <hjl.tools@gmail.com> | 2020-06-04 05:58:34 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2020-06-04 05:58:47 -0700 |
| commit | c4b126b87a6cd842e567136b07ac1adca98c660f (patch) | |
| tree | d2fc43aad5eabf1e5389b8136c98d2042ec52225 /bfd/elf64-x86-64.c | |
| parent | 1cf67587a0980e5fee20cad75f2c1fe01af6e808 (diff) | |
| download | gdb-c4b126b87a6cd842e567136b07ac1adca98c660f.zip gdb-c4b126b87a6cd842e567136b07ac1adca98c660f.tar.gz gdb-c4b126b87a6cd842e567136b07ac1adca98c660f.tar.bz2 | |
ELF: Don't check relocations in non-loaded, non-alloced sections
Don't do anything special with non-loaded, non-alloced sections.
In particular, any relocs in such sections should not affect GOT
and PLT reference counting (ie. we don't allow them to create GOT
or PLT entries), there's no possibility or desire to optimize TLS
relocs, and there's not much point in propagating relocs to shared
libs that the dynamic linker won't relocate.
Since check_relocs is no longer called on non-loaded, non-alloced
sections, remove SEC_ALLOC check. Resolve relocation in debug section
against symbol defined in shared library to 0.
bfd/
PR ld/26080
* elf-m10300.c (mn10300_elf_relocate_section): Resolve relocation
in debug section against symbol defined in shared library to 0.
* elf32-i386.c (elf_i386_check_relocs): Remove SEC_ALLOC check.
* elf32-lm32.c (lm32_elf_check_relocs): Likewise.
* elf32-m32r.c (m32r_elf_check_relocs): Likewise.
* elf32-nds32.c (nds32_elf_check_relocs): Likewise.
* elf32-nios2.c (nios2_elf32_check_relocs): Likewise.
* elf32-or1k.c (or1k_elf_check_relocs): Likewise.
* elf32-ppc.c (ppc_elf_check_relocs): Likewise.
* elf32-sh.c (sh_elf_check_relocs): Likewise.
* elf32-xtensa.c (elf_xtensa_check_relocs): Likewise.
* elf64-alpha.c (elf64_alpha_check_relocs): Likewise.
* elf64-ppc.c (ppc64_elf_check_relocs): Likewise.
* elf64-x86-64.c (elf_x86_64_check_relocs): Likewise.
* elfxx-mips.c (_bfd_mips_elf_check_relocs): Likewise.
* elf32-vax.c (elf_vax_check_relocs): Set non_got_ref for non-GOT
reference.
(elf_vax_adjust_dynamic_symbol): Generate a copy reloc only if
there is non-GOT reference.
* elflink.c (_bfd_elf_link_check_relocs): Skip non-loaded,
non-alloced sections.
ld/
PR ld/26080
* testsuite/ld-elf/comm-data.exp: Remove copy_reloc.
* testsuite/ld-elf/comm-data2r.rd: Removed.
* testsuite/ld-elf/comm-data2r.sd: Likewise.
* testsuite/ld-elf/comm-data2r.xd: Likewise.
Diffstat (limited to 'bfd/elf64-x86-64.c')
| -rw-r--r-- | bfd/elf64-x86-64.c | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/bfd/elf64-x86-64.c b/bfd/elf64-x86-64.c index 183c808..eada0e5 100644 --- a/bfd/elf64-x86-64.c +++ b/bfd/elf64-x86-64.c @@ -1862,15 +1862,6 @@ elf_x86_64_check_relocs (bfd *abfd, struct bfd_link_info *info, if (bfd_link_relocatable (info)) return TRUE; - /* Don't do anything special with non-loaded, non-alloced sections. - In particular, any relocs in such sections should not affect GOT - and PLT reference counting (ie. we don't allow them to create GOT - or PLT entries), there's no possibility or desire to optimize TLS - relocs, and there's not much point in propagating relocs to shared - libs that the dynamic linker won't relocate. */ - if ((sec->flags & SEC_ALLOC) == 0) - return TRUE; - htab = elf_x86_hash_table (info, X86_64_ELF_DATA); if (htab == NULL) { |