diff options
Diffstat (limited to 'tools/objtool/check.c')
| -rw-r--r-- | tools/objtool/check.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/tools/objtool/check.c b/tools/objtool/check.c index 32dea5f3feed..196a55101f3c 100644 --- a/tools/objtool/check.c +++ b/tools/objtool/check.c @@ -2060,17 +2060,18 @@ static int handle_insn_ops(struct instruction *insn, struct insn_state *state) struct stack_op *op; list_for_each_entry(op, &insn->stack_ops, list) { + struct cfi_state old_cfi = state->cfi; int res; - if (insn->alt_group) { - WARN_FUNC("alternative modifies stack", insn->sec, insn->offset); - return -1; - } - res = update_cfi_state(insn, &state->cfi, op); if (res) return res; + if (insn->alt_group && memcmp(&state->cfi, &old_cfi, sizeof(struct cfi_state))) { + WARN_FUNC("alternative modifies stack", insn->sec, insn->offset); + return -1; + } + if (op->dest.type == OP_DEST_PUSHF) { if (!state->uaccess_stack) { state->uaccess_stack = 1; |