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Only allow trapframe formats instead of sigframe formats like the

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comment says and don't write the first 3 arguments to FRAME_TRAPARG_*
as they are specific to sigframes.
This commit is contained in:
Marcel Moolenaar 2003-07-30 06:36:20 +00:00
parent f828e5bedb
commit 2cd199ce21
1 changed files with 4 additions and 4 deletions
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8
lib/libc/alpha/gen/makecontext.c
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@ -90,7 +90,7 @@ __makecontext(ucontext_t *ucp, void (*start)(void), int argc, ...)
* Make sure the context is valid. For now, we only allow
* trapframe format contexts to be used for makecontext.
*/
else if (ucp->uc_mcontext.mc_format == _MC_REV0_SIGFRAME) {
else if (ucp->uc_mcontext.mc_format == _MC_REV0_TRAPFRAME) {
/*
* Alpha passes the first 6 parameters in registers and
* remaining parameters on the stack. Set up the context
@ -119,15 +119,15 @@ __makecontext(ucontext_t *ucp, void (*start)(void), int argc, ...)
va_start(ap, argc);
for (i = 0; i < argc; i++) {
switch (i) {
case 0: ucp->uc_mcontext.mc_regs[FRAME_TRAPARG_A0] =
case 0: ucp->uc_mcontext.mc_regs[FRAME_A0] =
(unsigned long)va_arg(ap, intptr_t);
break;
case 1: ucp->uc_mcontext.mc_regs[FRAME_TRAPARG_A1] =
case 1: ucp->uc_mcontext.mc_regs[FRAME_A1] =
(unsigned long)va_arg(ap, intptr_t);
break;
case 2: ucp->uc_mcontext.mc_regs[FRAME_TRAPARG_A2] =
case 2: ucp->uc_mcontext.mc_regs[FRAME_A2] =
(unsigned long)va_arg(ap, intptr_t);
break;