diff options
| author |   Peter Zijlstra <peterz@infradead.org> | 2021-02-09 21:41:13 +0100 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2021-03-06 12:44:23 +0100 |
| commit | ffc7e74f36a2c7424da262a32a0bbe59669677ef (patch) | |
| tree | 40cd183b2b1229387de2e1c5f0fd7ea1961a57df /tools/objtool/arch/x86/decode.c | |
| parent | objtool,x86: Rewrite LEA decode (diff) | |
| download | wireguard-linux-ffc7e74f36a2c7424da262a32a0bbe59669677ef.tar.xz wireguard-linux-ffc7e74f36a2c7424da262a32a0bbe59669677ef.zip | |
objtool,x86: Rewrite LEAVE
Since we can now have multiple stack-ops per instruction, we don't
need to special case LEAVE and can simply emit the composite
operations.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
Link: https://lkml.kernel.org/r/20210211173627.253273977@infradead.org
Diffstat (limited to 'tools/objtool/arch/x86/decode.c')
| -rw-r--r-- | tools/objtool/arch/x86/decode.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/tools/objtool/arch/x86/decode.c b/tools/objtool/arch/x86/decode.c index d8f01387d671..47b9acfc6a4c 100644 --- a/tools/objtool/arch/x86/decode.c +++ b/tools/objtool/arch/x86/decode.c @@ -446,9 +446,17 @@ int arch_decode_instruction(const struct elf *elf, const struct section *sec, * mov bp, sp * pop bp */ - ADD_OP(op) - op->dest.type = OP_DEST_LEAVE; - + ADD_OP(op) { + op->src.type = OP_SRC_REG; + op->src.reg = CFI_BP; + op->dest.type = OP_DEST_REG; + op->dest.reg = CFI_SP; + } + ADD_OP(op) { + op->src.type = OP_SRC_POP; + op->dest.type = OP_DEST_REG; + op->dest.reg = CFI_BP; + } break; case 0xe3: |