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OpenBSD/power support.

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This commit is contained in:
rsc 2005-05-01 18:38:12 +00:00
parent e9ad899486
commit cea10000c5
9 changed files with 567 additions and 369 deletions
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38
src/libthread/OpenBSD-power.c Normal file
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@ -0,0 +1,38 @@
#include "threadimpl.h"
void
makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...)
{
ulong *sp, *tos;
va_list arg;
tos = (ulong*)ucp->uc_stack.ss_sp+ucp->uc_stack.ss_size/sizeof(ulong);
sp = (ulong*)((ulong)(tos-16) & ~15);
ucp->mc.pc = (long)func;
ucp->mc.sp = (long)sp;
va_start(arg, argc);
ucp->mc.r3 = va_arg(arg, long);
va_end(arg);
}
int
getcontext(ucontext_t *uc)
{
return _getmcontext(&uc->mc);
}
int
setcontext(ucontext_t *uc)
{
_setmcontext(&uc->mc);
return 0;
}
int
swapcontext(ucontext_t *oucp, ucontext_t *ucp)
{
if(getcontext(oucp) == 0)
setcontext(ucp);
return 0;
}