summaryrefslogtreecommitdiffhomepage
path: root/src/backtrace.c
diff options
context:
space:
mode:
authorYAMAMOTO Masaya <[email protected]>2017-11-04 01:23:12 +0900
committerYAMAMOTO Masaya <[email protected]>2017-11-04 01:23:12 +0900
commit625f9f6fa314872968632c5adbee7fb3823268b8 (patch)
treefdde1700b13048212606e4a995907f3757e18e2f /src/backtrace.c
parentb70d69de09130ce2bc89289b4826b3deea8afaae (diff)
parente7fe6ee2638dee438c1d79ab16a0403aebec0a60 (diff)
downloadmruby-625f9f6fa314872968632c5adbee7fb3823268b8.tar.gz
mruby-625f9f6fa314872968632c5adbee7fb3823268b8.zip
Merge branch 'master' of github.com:mruby/mruby
Diffstat (limited to 'src/backtrace.c')
-rw-r--r--src/backtrace.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/src/backtrace.c b/src/backtrace.c
index 232d1c2f4..f2cf2cd0f 100644
--- a/src/backtrace.c
+++ b/src/backtrace.c
@@ -51,7 +51,7 @@ each_backtrace(mrb_state *mrb, ptrdiff_t ciidx, mrb_code *pc0, each_backtrace_fu
pc = mrb->c->cibase[i].err;
}
else if (i+1 <= ciidx) {
- pc = mrb->c->cibase[i+1].pc - 1;
+ pc = &mrb->c->cibase[i+1].pc[-1];
}
else {
pc = pc0;
@@ -215,11 +215,14 @@ packed_backtrace(mrb_state *mrb)
void
mrb_keep_backtrace(mrb_state *mrb, mrb_value exc)
{
+ mrb_sym sym = mrb_intern_lit(mrb, "backtrace");
mrb_value backtrace;
- int ai = mrb_gc_arena_save(mrb);
+ int ai;
+ if (mrb_iv_defined(mrb, exc, sym)) return;
+ ai = mrb_gc_arena_save(mrb);
backtrace = packed_backtrace(mrb);
- mrb_iv_set(mrb, exc, mrb_intern_lit(mrb, "backtrace"), backtrace);
+ mrb_iv_set(mrb, exc, sym, backtrace);
mrb_gc_arena_restore(mrb, ai);
}