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| author | Peter Zijlstra <peterz@infradead.org> | 2021-06-21 16:13:55 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2021-06-21 17:26:57 +0200 |
| commit | 31197d3a0f1caeb60fb01f6755e28347e4f44037 (patch) | |
| tree | 0df86c920d5b315fa3c2a97a2965bdef23633253 | |
| parent | 13311e74253fe64329390df80bed3f07314ddd61 (diff) | |
| download | misc-31197d3a0f1caeb60fb01f6755e28347e4f44037.tar.gz | |
objtool/x86: Ignore __x86_indirect_alt_* symbols
Because the __x86_indirect_alt* symbols are just that, objtool will
try and validate them as regular symbols, instead of the alternative
replacements that they are.
This goes sideways for FRAME_POINTER=y builds; which generate a fair
amount of warnings.
Fixes: 9bc0bb50727c ("objtool/x86: Rewrite retpoline thunk calls")
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/YNCgxwLBiK9wclYJ@hirez.programming.kicks-ass.net
| -rw-r--r-- | arch/x86/lib/retpoline.S | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/lib/retpoline.S b/arch/x86/lib/retpoline.S index 4d32cb06ffd5b2..ec9922cba30a4b 100644 --- a/arch/x86/lib/retpoline.S +++ b/arch/x86/lib/retpoline.S @@ -58,12 +58,16 @@ SYM_FUNC_START_NOALIGN(__x86_indirect_alt_call_\reg) 2: .skip 5-(2b-1b), 0x90 SYM_FUNC_END(__x86_indirect_alt_call_\reg) +STACK_FRAME_NON_STANDARD(__x86_indirect_alt_call_\reg) + SYM_FUNC_START_NOALIGN(__x86_indirect_alt_jmp_\reg) ANNOTATE_RETPOLINE_SAFE 1: jmp *%\reg 2: .skip 5-(2b-1b), 0x90 SYM_FUNC_END(__x86_indirect_alt_jmp_\reg) +STACK_FRAME_NON_STANDARD(__x86_indirect_alt_jmp_\reg) + .endm /* |