137125 – GDB fails to get valid backtrace for PPC

Bug 137125 - GDB fails to get valid backtrace for PPC

Summary: GDB fails to get valid backtrace for PPC

Status:	RESOLVED FIXED

Alias:	None

Product:	Gentoo Linux
Classification:	Unclassified
Component:	[OLD] Core system (show other bugs)
Hardware:	PPC Linux

Importance:	High normal (vote)
Assignee:	PPC Porters

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Keywords:

Depends on:
Blocks:

Reported:	2006-06-17 15:56 UTC by Marcin Kurek
Modified:	2006-06-18 16:37 UTC (History)
CC List:	0 users

See Also:
Package list:
Runtime testing required:	---

Attachments
upstream patch to fix backtrace on ppc (gdb-powerpc-pic-prologue.patch,926 bytes, text/plain) 2006-06-17 15:58 UTC, Marcin Kurek	Details
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Description Marcin Kurek 2006-06-17 15:56:49 UTC

Fighting with xcb (https://bugs.freedesktop.org/show_bug.cgi?id=7261) bug I discovered that gdb fails to produce a valid backtrace on  PPC32 (I am not sure about PPC64) This bug is already fixed in upstream and I think it is a realy good idea to include it in to portage.

Comment 1 Marcin Kurek 2006-06-17 15:58:51 UTC

Created attachment 89419 [details]
upstream patch to fix backtrace on ppc

2005-12-10  Daniel Jacobowitz  <dan@codesourcery.com>

    PR tdep/2029
    Suggested by Till Straumann <strauman@slac.stanford.edu>:
    * rs6000-tdep.c (skip_prologue): Update check for later mtlr
    instructions.  Handle PIC bcl.

Comment 2 Tony Vroon (RETIRED) gentoo-dev

2006-06-18 16:37:03 UTC

I agree. This cleaned up 90% of the test backtraces I did. Thank you for the research and the bug report :)

This is in portage as gdb-6.4-r5.