A UD1 isn't a BUG and shouldn't be treated like one. Signed-off-by: Josh Poimboeuf <jpoimboe@xxxxxxxxxx> --- tools/objtool/arch/x86/decode.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/tools/objtool/arch/x86/decode.c b/tools/objtool/arch/x86/decode.c index 6b34b058a821..72d55dcd3d7f 100644 --- a/tools/objtool/arch/x86/decode.c +++ b/tools/objtool/arch/x86/decode.c @@ -528,11 +528,19 @@ int arch_decode_instruction(struct objtool_file *file, const struct section *sec /* sysenter, sysret */ insn->type = INSN_CONTEXT_SWITCH; - } else if (op2 == 0x0b || op2 == 0xb9) { + } else if (op2 == 0x0b) { /* ud2 */ insn->type = INSN_BUG; + } else if (op2 == 0xb9) { + + /* + * ud1 - only used for the static call trampoline to + * stop speculation. Basically used like an int3. + */ + insn->type = INSN_TRAP; + } else if (op2 == 0x0d || op2 == 0x1f) { /* nopl/nopw */ -- 2.45.2