Bug 13569

Summary:	Linker garbage collection retains debug information which leads to GDB bus errors
Product:	binutils	Reporter:	Nick Clifton <nickc>
Component:	ld	Assignee:	Not yet assigned to anyone <unassigned>
Status:	NEW ---
Severity:	normal	CC:	mark
Priority:	P2
Version:	2.24
Target Milestone:	---
Host:		Target:
Build:		Last reconfirmed:

Description Nick Clifton 2012-01-06 17:21:18 UTC

As reported here:

http://sourceware.org/ml/binutils/2011-11/msg00223.html

and here:

http://sourceware.org/ml/binutils/2012-01/msg00047.html

When linker garbage collection removes a section it does not remove the debug information associated with that section.  This leaves the resulting executable containing bogus debug information, which can then be used to trigger a SIGBUS fault in GDB:

http://sourceware.org/bugzilla/show_bug.cgi?id=13568