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author | rsc <devnull@localhost> | 2005-05-01 18:38:12 +0000 |
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committer | rsc <devnull@localhost> | 2005-05-01 18:38:12 +0000 |
commit | cea10000c59882b43525e4fd4fb17a55b7dba1c1 (patch) | |
tree | 63e81981a798e074e7de146e23c8e16eaf3a26dc /src/libthread/OpenBSD-power.c | |
parent | e9ad899486adb4c561e682ced74ac0cb1c4539fc (diff) | |
download | plan9port-cea10000c59882b43525e4fd4fb17a55b7dba1c1.tar.gz plan9port-cea10000c59882b43525e4fd4fb17a55b7dba1c1.tar.bz2 plan9port-cea10000c59882b43525e4fd4fb17a55b7dba1c1.zip |
OpenBSD/power support.
Diffstat (limited to 'src/libthread/OpenBSD-power.c')
-rw-r--r-- | src/libthread/OpenBSD-power.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/src/libthread/OpenBSD-power.c b/src/libthread/OpenBSD-power.c new file mode 100644 index 00000000..c3c7e72b --- /dev/null +++ b/src/libthread/OpenBSD-power.c @@ -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; +} + |