diff options
Diffstat (limited to 'tools/objtool/arch/x86/decode.c')
| -rw-r--r-- | tools/objtool/arch/x86/decode.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/tools/objtool/arch/x86/decode.c b/tools/objtool/arch/x86/decode.c index 199b4084a13c..32736383ead1 100644 --- a/tools/objtool/arch/x86/decode.c +++ b/tools/objtool/arch/x86/decode.c @@ -446,9 +446,19 @@ int arch_decode_instruction(struct elf *elf, struct section *sec, *type = INSN_RETURN; break; + case 0xcf: /* iret */ + *type = INSN_EXCEPTION_RETURN; + + /* add $40, %rsp */ + op->src.type = OP_SRC_ADD; + op->src.reg = CFI_SP; + op->src.offset = 5*8; + op->dest.type = OP_DEST_REG; + op->dest.reg = CFI_SP; + break; + case 0xca: /* retf */ case 0xcb: /* retf */ - case 0xcf: /* iret */ *type = INSN_CONTEXT_SWITCH; break; @@ -494,7 +504,7 @@ int arch_decode_instruction(struct elf *elf, struct section *sec, *immediate = insn.immediate.nbytes ? insn.immediate.value : 0; - if (*type == INSN_STACK) + if (*type == INSN_STACK || *type == INSN_EXCEPTION_RETURN) list_add_tail(&op->list, ops_list); else free(op); |