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On Friday 27 December 2013 12:17:55 Andreas Schwab wrote: > Mike Frysinger <vapier@gentoo.org> writes: > > afaik, r12 is the sp, so this line is allocating stack_t using the > > current stack. > > Did you allocate the memory? what do i need to do to allocate stack space beyond adjusting the stack pointer ? this is probably a dumb question for someone who is well versed in ia64 assembly. > > just before the syscall, i update r12: > > mov r12 = r9; > > That looks bogus. r9 contains just a temporary value unrelated to the > stack. as i said, in a previous version, i was doing: adds r9 = -sizeSS, r12; in which case r9 isn't bogus -mike
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