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objtool: Warn about unknown annotation types

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Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Josh Poimboeuf <jpoimboe@kernel.org>
Link: https://lore.kernel.org/r/20241128094312.611961175@infradead.org
This commit is contained in:
Peter Zijlstra 2024-11-28 10:39:07 +01:00
parent 87116ae6da
commit e7e0eb53c2
1 changed files with 13 additions and 0 deletions
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13
tools/objtool/check.c
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@ -2335,6 +2335,10 @@ static int __annotate_ifc(struct objtool_file *file, int type, struct instructio
static int __annotate_late(struct objtool_file *file, int type, struct instruction *insn)
{
switch (type) {
case ANNOTYPE_NOENDBR:
/* early */
break;
case ANNOTYPE_RETPOLINE_SAFE:
if (insn->type != INSN_JUMP_DYNAMIC &&
insn->type != INSN_CALL_DYNAMIC &&
@ -2359,11 +2363,20 @@ static int __annotate_late(struct objtool_file *file, int type, struct instructi
insn->unret = 1;
break;
case ANNOTYPE_IGNORE_ALTS:
/* early */
break;
case ANNOTYPE_INTRA_FUNCTION_CALL:
/* ifc */
break;
case ANNOTYPE_REACHABLE:
insn->dead_end = false;
break;
default:
WARN_INSN(insn, "Unknown annotation type: %d", type);
break;
}