2) I'd also had problems with setjmp - I think this was in perl
(in
the spec wrapper); adding
-nlongjmp,siglongjmp,_longjmp,__longjmp_chk,__libc_longjmp,__libc_siglongjmp
I am investigating this (or a related) issue, similar to [1]. Calling
setjmp via the profiling PLT trampoline will result in storing the
wrong stack pointer in jmp_buf...
[1]
https://fedorahosted.org/pipermail/latrace/2010-October/000004.html