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o Fix a cut-n-paste bug. We were clobbering rp with gp...

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o  Make sure the arguments to ctx_wrapper() are loaded from the
   backing store by forcing an underflow. Do this by making all
   registers in the register frame local.
This commit is contained in:
Marcel Moolenaar 2003-06-02 00:16:39 +00:00
parent f14fd87c5e
commit 75fa7db991
1 changed files with 2 additions and 2 deletions
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4
lib/libc/ia64/gen/makecontext.c
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@ -113,9 +113,9 @@ __makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...)
memset(&ucp->uc_mcontext, 0, sizeof(ucp->uc_mcontext));
ucp->uc_mcontext.mc_special.sp = (intptr_t)args - 16;
ucp->uc_mcontext.mc_special.bspstore = (intptr_t)bsp;
ucp->uc_mcontext.mc_special.pfs = 3;
ucp->uc_mcontext.mc_special.pfs = (3 << 7) | 3;
ucp->uc_mcontext.mc_special.rsc = 0xf;
ucp->uc_mcontext.mc_special.rp = ((struct fdesc*)ctx_wrapper)->ip;
ucp->uc_mcontext.mc_special.rp = ((struct fdesc*)ctx_wrapper)->gp;
ucp->uc_mcontext.mc_special.gp = ((struct fdesc*)ctx_wrapper)->gp;
ucp->uc_mcontext.mc_special.fpsr = IA64_FPSR_DEFAULT;
}