------- Additional Comments From eddy at opera dot com 2005-09-08 07:54 -------
Subject: Re: receiving result from __builtin_return_address() beyond stack top
causes segfault
Yes, that's one of the work-arounds I considered: but has an
inconvenient problem - when shared libraries are loading, _start (the
function that calls main) hasn't yet been entered and main hasn't yet
recorded its address. This means we have to not record the call-stack
when our global variable recording main's caller's address is as yet
unset. Indeed, using ccmalloc got me a segfault before main was
entered in exactly this way, since it doesn't (or didn't, back when I
reported this bug - it's about time I had another look at ccmalloc) do
the work-around just described.
Eddy.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=8743
