diff options
| -rw-r--r-- | test/-ext-/debug/test_profile_frames.rb | 4 | ||||
| -rw-r--r-- | vm_backtrace.c | 3 |
2 files changed, 5 insertions, 2 deletions
diff --git a/test/-ext-/debug/test_profile_frames.rb b/test/-ext-/debug/test_profile_frames.rb index 5ea506046e..672c9c4b5a 100644 --- a/test/-ext-/debug/test_profile_frames.rb +++ b/test/-ext-/debug/test_profile_frames.rb @@ -119,4 +119,8 @@ class TestProfileFrames < Test::Unit::TestCase a end; end + + def test_start + assert_equal Bug::Debug.profile_frames(0, 10).tap(&:shift), Bug::Debug.profile_frames(1, 9) + end end diff --git a/vm_backtrace.c b/vm_backtrace.c index 59340292cf..3a13088855 100644 --- a/vm_backtrace.c +++ b/vm_backtrace.c @@ -1276,7 +1276,7 @@ rb_profile_frames(int start, int limit, VALUE *buff, int *lines) const rb_control_frame_t *cfp = ec->cfp, *end_cfp = RUBY_VM_END_CONTROL_FRAME(ec); const rb_callable_method_entry_t *cme; - for (i=0; i<limit && cfp != end_cfp;) { + for (i=0; i<limit && cfp != end_cfp; cfp = RUBY_VM_PREVIOUS_CONTROL_FRAME(cfp)) { if (cfp->iseq && cfp->pc) { if (start > 0) { start--; @@ -1296,7 +1296,6 @@ rb_profile_frames(int start, int limit, VALUE *buff, int *lines) i++; } - cfp = RUBY_VM_PREVIOUS_CONTROL_FRAME(cfp); } return i; |