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On 08/15/2016 03:02 PM, Andreas Schwab wrote:
On Aug 15 2016, Florian Weimer <fweimer@redhat.com> wrote:Why isn't the PC - 2 kludge needed for the other .cantunwind cases?Because the other uses have regular function calls, so they return back to the middle of the function that is marked cantunwind. __startcontext doesn't contain the function call, but is the address the context returns to.Would it be possible to add a C test case to the glibc testsuite?This is difficult, because a simple call stack won't trigger the bug.
Thanks for the explanation. Your patch looks okay to me. Florian
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