[Bug 484048] Re: valgrind is broken on powerpc

[Alessandro Ghedini]

** Bug watch added: KDE Bug Tracking System #214223
   http://bugs.kde.org/show_bug.cgi?id=214223

** Also affects: valgrind via
   http://bugs.kde.org/show_bug.cgi?id=214223
   Importance: Unknown
       Status: Unknown

** Bug watch added: Debian Bug tracker #603961
   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=603961

** Also affects: valgrind (Debian) via
   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=603961
   Importance: Unknown
       Status: Unknown

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https://bugs.launchpad.net/bugs/484048

Title:
  valgrind is broken on powerpc

Status in Valgrind:
  Unknown
Status in “valgrind” package in Ubuntu:
  New
Status in “valgrind” package in Debian:
  Unknown

Bug description:
  Binary package hint: valgrind

  Description:	Ubuntu 9.10
  Release:	9.10
  Valgrind 3.5.0

  Vagrind segfaults on start up
  $ valgrind 
  segfault in coregrind/m_machine.c after a SIGILL.

  adding at the top
  #pragma GCC optimize ("-O0")

  And recompiling solve the issue. Don't know if it's a gcc or valgrind bug but anyway this code is brittle.
  longjmp is not signal handler safe and anyway after a longjmp the signals mask is undefined.

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