diff options
| author | Tiezhu Yang <yangtiezhu@loongson.cn> | 2025-09-18 19:43:36 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-09-25 11:13:45 +0200 |
| commit | 89d40cc647daf6ed0dcdaae5b2892b10c361579d (patch) | |
| tree | d7d65f942eba1080c5811f446159b7896c473c6d | |
| parent | 1766f14c8f97159845737f808ed7875e2b2563b3 (diff) | |
objtool/LoongArch: Mark types based on break immediate code
commit baad7830ee9a56756b3857348452fe756cb0a702 upstream.
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.
Cc: stable@vger.kernel.org
Suggested-by: WANG Rui <wangrui@loongson.cn>
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | tools/objtool/arch/loongarch/decode.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/tools/objtool/arch/loongarch/decode.c b/tools/objtool/arch/loongarch/decode.c index 69b66994f2a1..0b9195f985a6 100644 --- a/tools/objtool/arch/loongarch/decode.c +++ b/tools/objtool/arch/loongarch/decode.c @@ -313,10 +313,16 @@ int arch_decode_instruction(struct objtool_file *file, const struct section *sec if (decode_insn_reg2i16_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 */ |