Well, can't you turn off such optimizations with an -fno-omit-frame-pointer or something similar?
On May 22, 2010, at 11:32, Mark Kettenis wrote: >> From: Jeremy Huddleston <[email protected]> >> Date: Sat, 22 May 2010 09:17:27 -0700 >> >> On May 22, 2010, at 02:02, Mark Kettenis wrote: >> >>>> From: Jamey Sharp <[email protected]> >>>> Date: Fri, 21 May 2010 22:16:50 -0700 >>>> >>>> For AtomError, this should fix a clang warning; in the other cases it's >>>> just good documentation. >>> >>> Adding _X_NORETURN to a function will destroy the possibility to do >>> backtraces from said function on many architectures. >> >> Really? Why is that? > > Compiler developers use the fact that a function doesn't return as a > license for optimizations that destroy the function return address or > frame pointer. It's especially nasty with GCC on arm, but there are > other platforms where this is also a problem. > _______________________________________________ [email protected]: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: http://lists.x.org/mailman/listinfo/xorg-devel
