Hi, On Fri, 2010-09-10 at 15:36 +0200, Lassi Tuura wrote:
> > In case this might help, I have uploaded the assembler code from > > uClibc-0.9.30.1 that I believe to be relevant here: > > > > http://svenfoo.org/misc/sigrestorer.S > > No unwind info at least there. You should see some .eh_frame (or > .debug_frame?) type description a bit like this: > > http://repo.or.cz/w/glibc.git/blob?f=sysdeps/unix/sysv/linux/x86_64/sigaction.c#l122 There's nothing like this in uClibc 0.9.30.1 libc/sysdeps/linux/arm/sigaction.c either. I've also checked git master of uClibc to see if anything changed since then, but it looks like the relevant files have not been touched over the last two years. > I guess you could either coax uclibc to add the info, or teach > libunwind how to walk around it. There's code for example like this to > try to recognise linux signal return instruction pattern: > > http://git.savannah.gnu.org/gitweb/?p=libunwind.git;a=blob;f=src/x86/Gos-linux.c;h=31f83bae01668332dc738cc70fbc8076990a8528;hb=HEAD#l29 > Unfortunately the implementation of unw_is_signal_frame() is missing for the ARM platform. I am totally open for both solutions, but I am afraid, I have not enough understanding of all this to implement this myself. I can try patches, either for uClibc or libunwind, and I am also willing to push a working change upstream, but I definitely need more guidance if I am supposed to write these patches myself. Regards, Sven _______________________________________________ Libunwind-devel mailing list [email protected] http://lists.nongnu.org/mailman/listinfo/libunwind-devel
