So far, we were detecting infinite stacks but not stopping unwinding
since break only exited inner loop.
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
---
contrib/plugins/uftrace.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/contrib/plugins/uftrace.c b/contrib/plugins/uftrace.c
index a7e21b5b87a..1ed982999ed 100644
--- a/contrib/plugins/uftrace.c
+++ b/contrib/plugins/uftrace.c
@@ -443,7 +443,7 @@ static void cpu_unwind_stack(Cpu *cpu, uint64_t frame_pointer, uint64_t pc)
/* check we don't have an infinite stack */
for (size_t i = 0; i < depth; ++i) {
if (frame_pointer == unwind[i].frame_pointer) {
- break;
+ goto after_unwind;
}
}
CallstackEntry e = {.frame_pointer = frame_pointer, .pc = pc};
@@ -456,6 +456,7 @@ static void cpu_unwind_stack(Cpu *cpu, uint64_t frame_pointer, uint64_t pc)
} while (frame_pointer && pc && depth < UNWIND_STACK_MAX_DEPTH);
#undef UNWIND_STACK_MAX_DEPTH
+after_unwind:
/* push it from bottom to top */
while (depth) {
callstack_push(cpu->cs, unwind[depth - 1]);
--
2.47.3