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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/elf-m10300.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/elf-m10300.c')
| -rw-r--r-- | bfd/elf-m10300.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/bfd/elf-m10300.c b/bfd/elf-m10300.c index 696514a..5a0bb9f 100644 --- a/bfd/elf-m10300.c +++ b/bfd/elf-m10300.c @@ -2066,12 +2066,12 @@ mn10300_elf_relocate_section (bfd *output_bfd, && elf_hash_table (info)->dynamic_sections_created && !SYMBOL_REFERENCES_LOCAL (info, hh)) || (r_type == R_MN10300_32 + && !SYMBOL_REFERENCES_LOCAL (info, hh) /* _32 relocs in executables force _COPY relocs, such that the address of the symbol ends up being local. */ - && !bfd_link_executable (info) - && !SYMBOL_REFERENCES_LOCAL (info, hh) - && ((input_section->flags & SEC_ALLOC) != 0 + && (((input_section->flags & SEC_ALLOC) != 0 + && !bfd_link_executable (info)) /* DWARF will emit R_MN10300_32 relocations in its sections against symbols defined externally in shared libraries. We can't |