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| author | Peter Zijlstra <peterz@infradead.org> | 2021-03-26 16:12:04 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2021-04-02 12:43:02 +0200 |
| commit | 530b4ddd9dd92b263081f5c7786d39a8129c8b2d (patch) | |
| tree | 668abefc52613ad44949bbf1233b098b1e19a0f4 /tools/objtool/check.c | |
| parent | objtool: Correctly handle retpoline thunk calls (diff) | |
| download | linux-530b4ddd9dd92b263081f5c7786d39a8129c8b2d.tar.xz linux-530b4ddd9dd92b263081f5c7786d39a8129c8b2d.zip | |
objtool: Handle per arch retpoline naming
The __x86_indirect_ naming is obviously not generic. Shorten to allow
matching some additional magic names later.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Miroslav Benes <mbenes@suse.cz>
Link: https://lkml.kernel.org/r/20210326151259.630296706@infradead.org
Diffstat (limited to 'tools/objtool/check.c')
| -rw-r--r-- | tools/objtool/check.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/tools/objtool/check.c b/tools/objtool/check.c index 519af4be7018..6fbc00122d27 100644 --- a/tools/objtool/check.c +++ b/tools/objtool/check.c @@ -850,6 +850,11 @@ static int add_ignore_alternatives(struct objtool_file *file) return 0; } +__weak bool arch_is_retpoline(struct symbol *sym) +{ + return false; +} + /* * Find the destination instructions for all jumps. */ @@ -872,7 +877,7 @@ static int add_jump_destinations(struct objtool_file *file) } else if (reloc->sym->type == STT_SECTION) { dest_sec = reloc->sym->sec; dest_off = arch_dest_reloc_offset(reloc->addend); - } else if (!strncmp(reloc->sym->name, "__x86_indirect_thunk_", 21)) { + } else if (arch_is_retpoline(reloc->sym)) { /* * Retpoline jumps are really dynamic jumps in * disguise, so convert them accordingly. @@ -1026,7 +1031,7 @@ static int add_call_destinations(struct objtool_file *file) return -1; } - } else if (!strncmp(reloc->sym->name, "__x86_indirect_thunk_", 21)) { + } else if (arch_is_retpoline(reloc->sym)) { /* * Retpoline calls are really dynamic calls in * disguise, so convert them accordingly. |