From: "drkaes (Stefan Kaes)" <stkaes@...>
Date: 2014-01-07T22:14:40+09:00
Subject: [ruby-core:59628] [ruby-trunk - Bug #9321] rb_mod_const_missing	does not generate a c-return event


Issue #9321 has been updated by drkaes (Stefan Kaes).


Compiling with clang produces warnings:

in file included from ./include/ruby/ruby.h:1694:
./include/ruby/intern.h:955:40: warning: unknown attribute 'warning' ignored [-Wattributes]
void rb_frame_pop(void) __attribute__((warning("rb_frame_pop is obsolete. It will be deleted after Ruby 2.2.0.")));;

You probably need to change the method signature to:

DEPRECATED(void rb_frame_pop(void));



----------------------------------------
Bug #9321: rb_mod_const_missing does not generate a c-return event
https://bugs.ruby-lang.org/issues/9321#change-44157

Author: drkaes (Stefan Kaes)
Status: Open
Priority: Normal
Assignee: 
Category: core
Target version: 
ruby -v: ruby 2.1.0p1 (2013-12-26 revision 44431) [x86_64-darwin12.0]
Backport: 1.9.3: UNKNOWN, 2.0.0: UNKNOWN, 2.1: UNKNOWN


We have had an issue reported for ruby-prof where execution times were attributed incorrectly in the call graph.

It turned out that the problem is caused by a missing c-return event for Module#const_missing.

ruby-prof simulates the ruby call stack by subscribing to line, call, c-call, return and c-return events.

Obviously, the missing return throws ruby-prof off the track.



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