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| author | Russ Cox <rsc@swtch.com> | 2020-01-19 22:39:22 -0500 |
|---|---|---|
| committer | Russ Cox <rsc@swtch.com> | 2020-01-19 23:04:58 -0500 |
| commit | 41b3e8b9893a8561af7e85ca98444bc284b4013d (patch) | |
| tree | e9bf7fdeefbdb7d2e6c1ebc25c7888b81f0bb16b /src/libthread/OpenBSD-power.c | |
| parent | ac8042dfa9819f76ccfedd4aa36c1239322808b8 (diff) | |
| download | plan9port-41b3e8b9893a8561af7e85ca98444bc284b4013d.tar.gz plan9port-41b3e8b9893a8561af7e85ca98444bc284b4013d.tar.bz2 plan9port-41b3e8b9893a8561af7e85ca98444bc284b4013d.zip | |
libthread: use consistent stack calculation code in makecontext
Also reduce duplication: makecontext is per-arch not per-os-arch.
May fix #353.
Diffstat (limited to 'src/libthread/OpenBSD-power.c')
| -rw-r--r-- | src/libthread/OpenBSD-power.c | 24 |
1 files changed, 0 insertions, 24 deletions
diff --git a/src/libthread/OpenBSD-power.c b/src/libthread/OpenBSD-power.c deleted file mode 100644 index eab711f2..00000000 --- a/src/libthread/OpenBSD-power.c +++ /dev/null @@ -1,24 +0,0 @@ -#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 -swapcontext(ucontext_t *oucp, ucontext_t *ucp) -{ - if(getcontext(oucp) == 0) - setcontext(ucp); - return 0; -} |