tree 754b100259815c05459a022b8695c0b34e13292f
parent a9fff9bc80aa03704d98b3ddccbb3679af71bd86
author sewardj <sewardj@a5019735-40e9-0310-863c-91ae7b9d1cf9> 1124467379 +0000
committer sewardj <sewardj@a5019735-40e9-0310-863c-91ae7b9d1cf9> 1124467379 +0000

Incorporate a patch from Craig Chaney which gives better stack
snapshots on ppc32-linux in the presence of functions subject to
leaf-function optimisations.

At the same time, simplify the stack unwinding logic by basically
implementing it separately for each target.  Having a single piece of
logic for amd64 and x86 was tenable, but merging ppc32 into it is too
confusing.  So now there is an x86/amd64 unwinder and a ppc32
unwinder.

This requires plumbing a link-register value into
VG_(get_StackTrace2), and that in turn requires passing it around
several other stack-trace-related functions.  Hence 7 changed files.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@4464 a5019735-40e9-0310-863c-91ae7b9d1cf9