Messages in this thread | | | Date | Sun, 26 Aug 2012 10:52:51 -0700 | From | Arun Sharma <> | Subject | Re: perf backtraces off-by-1 |
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On 8/26/12 9:10 AM, Peter Zijlstra wrote: > On Fri, 2012-08-24 at 15:13 -0700, Arun Sharma wrote: > >> One option is to support >> this for user mode only, with code to detect signal frames. Any other >> ideas? >> > I guess we'd need to see what that patch would look like... :-) >
It used to look like this:
http://git.savannah.gnu.org/gitweb/?p=libunwind.git;a=commitdiff;h=92cc7fd78a5a79c4bb5f85bfb7d7fb025df9cd5a
These days we just look at dwarf augmentation string:
http://git.savannah.gnu.org/gitweb/?p=libunwind.git;a=blob;f=src/dwarf/Gfde.c;h=8659624b0320c514057861a259b6efe1b605bbf3;hb=HEAD#l189
-Arun
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