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Diffstat (limited to 'vm_backtrace.c')
-rw-r--r--vm_backtrace.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/vm_backtrace.c b/vm_backtrace.c
index 3aae59bf68..12157ef707 100644
--- a/vm_backtrace.c
+++ b/vm_backtrace.c
@@ -37,10 +37,8 @@ inline static int
calc_pos(const rb_iseq_t *iseq, const VALUE *pc, int *lineno, int *node_id)
{
VM_ASSERT(iseq);
- VM_ASSERT(ISEQ_BODY(iseq));
- VM_ASSERT(ISEQ_BODY(iseq)->iseq_encoded);
- VM_ASSERT(ISEQ_BODY(iseq)->iseq_size);
- if (! pc) {
+
+ if (pc == NULL) {
if (ISEQ_BODY(iseq)->type == ISEQ_TYPE_TOP) {
VM_ASSERT(! ISEQ_BODY(iseq)->local_table);
VM_ASSERT(! ISEQ_BODY(iseq)->local_table_size);
@@ -53,6 +51,10 @@ calc_pos(const rb_iseq_t *iseq, const VALUE *pc, int *lineno, int *node_id)
return 1;
}
else {
+ VM_ASSERT(ISEQ_BODY(iseq));
+ VM_ASSERT(ISEQ_BODY(iseq)->iseq_encoded);
+ VM_ASSERT(ISEQ_BODY(iseq)->iseq_size);
+
ptrdiff_t n = pc - ISEQ_BODY(iseq)->iseq_encoded;
VM_ASSERT(n <= ISEQ_BODY(iseq)->iseq_size);
VM_ASSERT(n >= 0);
@@ -1557,7 +1559,7 @@ rb_profile_frames(int start, int limit, VALUE *buff, int *lines)
end_cfp = RUBY_VM_NEXT_CONTROL_FRAME(end_cfp);
for (i=0; i<limit && cfp != end_cfp;) {
- if (VM_FRAME_RUBYFRAME_P(cfp)) {
+ if (VM_FRAME_RUBYFRAME_P(cfp) && cfp->pc != 0) {
if (start > 0) {
start--;
continue;