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| author | Peter Zijlstra <peterz@infradead.org> | 2021-10-26 15:01:36 +0300 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2021-10-29 00:25:25 +0300 |
| commit | 134ab5bd1883312d7a4b3033b05c6b5a1bb8889b (patch) | |
| tree | 39d11f68c60a068c6d5ed56688e89a3907fe0ad4 /tools/objtool/special.c | |
| parent | c509331b41b7365e17396c246e8c5797bccc8074 (diff) | |
| download | linux-134ab5bd1883312d7a4b3033b05c6b5a1bb8889b.tar.xz | |
objtool,x86: Replace alternatives with .retpoline_sites
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
Diffstat (limited to 'tools/objtool/special.c')
| -rw-r--r-- | tools/objtool/special.c | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/tools/objtool/special.c b/tools/objtool/special.c index 06c3eacab3d5..e2223dd91c37 100644 --- a/tools/objtool/special.c +++ b/tools/objtool/special.c @@ -109,14 +109,6 @@ static int get_alt_entry(struct elf *elf, struct special_entry *entry, return -1; } - /* - * Skip retpoline .altinstr_replacement... we already rewrite the - * instructions for retpolines anyway, see arch_is_retpoline() - * usage in add_{call,jump}_destinations(). - */ - if (arch_is_retpoline(new_reloc->sym)) - return 1; - reloc_to_sec_off(new_reloc, &alt->new_sec, &alt->new_off); /* _ASM_EXTABLE_EX hack */ |