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authorPeter Zijlstra <peterz@infradead.org>2021-10-26 15:01:36 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-07-23 13:53:51 +0300
commit503882b5aeb694dfa7cb0a3fda174fbdfb6af059 (patch)
treef7bb874c58785eacc710733f9b77fa6941c94d0b /tools/objtool/include
parentcad0e43a8c302f12dc2c1c2f78b2303b942ceb37 (diff)
downloadlinux-503882b5aeb694dfa7cb0a3fda174fbdfb6af059.tar.xz
objtool,x86: Replace alternatives with .retpoline_sites
commit 134ab5bd1883312d7a4b3033b05c6b5a1bb8889b upstream. Instead of writing complete alternatives, simply provide a list of all the retpoline thunk calls. Then the kernel is free to do with them as it pleases. Simpler code all-round. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Borislav Petkov <bp@suse.de> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Tested-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/r/20211026120309.850007165@infradead.org [cascardo: fixed conflict because of missing 8b946cc38e063f0f7bb67789478c38f6d7d457c9] Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/objtool/include')
-rw-r--r--tools/objtool/include/objtool/elf.h1
1 files changed, 0 insertions, 1 deletions
diff --git a/tools/objtool/include/objtool/elf.h b/tools/objtool/include/objtool/elf.h
index d3915f5e0c73..08821307ac99 100644
--- a/tools/objtool/include/objtool/elf.h
+++ b/tools/objtool/include/objtool/elf.h
@@ -143,7 +143,6 @@ int elf_write_insn(struct elf *elf, struct section *sec,
unsigned long offset, unsigned int len,
const char *insn);
int elf_write_reloc(struct elf *elf, struct reloc *reloc);
-struct symbol *elf_create_undef_symbol(struct elf *elf, const char *name);
int elf_write(struct elf *elf);
void elf_close(struct elf *elf);