If the break immediate code is 0, it should mark the type
as INSN_TRAP. If the break immediate code is 1, it should
mark the type as INSN_BUG.
While at it, format the code style and add the code comment
for nop.
Suggested-by: WANG Rui <wangrui@loongson.cn>
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
---
tools/objtool/arch/loongarch/decode.c | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/tools/objtool/arch/loongarch/decode.c b/tools/objtool/arch/loongarch/decode.c
index 707f339b1840..2e555c4060c5 100644
--- a/tools/objtool/arch/loongarch/decode.c
+++ b/tools/objtool/arch/loongarch/decode.c
@@ -331,10 +331,16 @@ int arch_decode_instruction(struct objtool_file *file, const struct section *sec
if (decode_insn_reg3_fomat(inst, insn))
return 0;
- if (inst.word == 0)
+ if (inst.word == 0) {
+ /* andi $zero, $zero, 0x0 */
insn->type = INSN_NOP;
- else if (inst.reg0i15_format.opcode == break_op) {
- /* break */
+ } else if (inst.reg0i15_format.opcode == break_op &&
+ inst.reg0i15_format.immediate == 0x0) {
+ /* break 0x0 */
+ insn->type = INSN_TRAP;
+ } else if (inst.reg0i15_format.opcode == break_op &&
+ inst.reg0i15_format.immediate == 0x1) {
+ /* break 0x1 */
insn->type = INSN_BUG;
} else if (inst.reg2_format.opcode == ertn_op) {
/* ertn */
--
2.42.0