> Date: Wed, 6 Aug 2008 11:27:36 -0400 > From: Daniel Jacobowitz <[EMAIL PROTECTED]> > > On Wed, Aug 06, 2008 at 07:19:26PM +0400, Sergei Poselenov wrote: > > (gdb) bt > > #0 0x4004ec0c in raise () from /lib/libc.so.6 > > #1 0x40050234 in abort () from /lib/libc.so.6 > > Backtrace stopped: frame did not save the PC > > Your implementation of abort does not save a return address, so GDB > can't display it. I believe tehis is a known limitation of the ARM > GCC port.
GCC should really not do this. People are almost guaranteed to want to be able to see a backtrace from abort(3). I suppose it optimizes away the instructions to save the return address, because abort() is marked with __attribute__(noreturn). But that means there is very little point in actually doing that optimization since __attribute__(noreturn) implies that the function will only be called once! I suppose there are some space savings but are they really significant?
