Bug 1011579

Summary:	dwarf_getfuncs makes systemtap miss some function probes in c++ programs and with dwz compressed DWARF
Product:	Red Hat Enterprise Linux 7	Reporter:	Mark Wielaard <mjw>
Component:	elfutils	Assignee:	Petr Machata <pmachata>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Martin Cermak <mcermak>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	7.0	CC:	fche, jistone, mbenitez, mcermak, mjw, mnewsome
Target Milestone:	beta	Keywords:	Rebase
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	elfutils-0.157-2.el7	Doc Type:	Rebase: Bug Fixes and Enhancements
Doc Text:		Story Points:	---
Clone Of:
Clones:	1017185 (view as bug list)		Environment:
Last Closed:	2014-06-13 10:35:54 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Bug Depends On:
Bug Blocks:	1017185

Description Mark Wielaard 2013-09-24 14:58:16 UTC

Because of a bug in elfutils libdw dwarf_getfuncs() systemtap could miss some probes in C++ programs with DWZ compressed debug files.

A fix exist for upstream elfutils, current git:

https://git.fedorahosted.org/cgit/elfutils.git/commit/?id=1b734df17fca9f89a887b85ffe74616a87388f51

There is also a workaround created for systemtap (not yet integrated upstream):
https://lists.fedorahosted.org/pipermail/elfutils-devel/2013-September/003251.html

It would be good to get this fixed either by a elfutils rebase (if there is an upstream release soon) or by a patch like the above to systemtap.

Comment 4 Ludek Smid 2014-06-13 10:35:54 UTC

This request was resolved in Red Hat Enterprise Linux 7.0.

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