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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-386.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-386.c')
| -rw-r--r-- | src/libthread/OpenBSD-386.c | 22 |
1 files changed, 0 insertions, 22 deletions
diff --git a/src/libthread/OpenBSD-386.c b/src/libthread/OpenBSD-386.c deleted file mode 100644 index 89bfedcd..00000000 --- a/src/libthread/OpenBSD-386.c +++ /dev/null @@ -1,22 +0,0 @@ -#include "threadimpl.h" - -void -makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...) -{ - int *sp; - - sp = (int*)ucp->uc_stack.ss_sp+ucp->uc_stack.ss_size/4; - sp -= argc; - memmove(sp, &argc+1, argc*sizeof(int)); - *--sp = 0; /* return address */ - ucp->uc_mcontext.mc_eip = (long)func; - ucp->uc_mcontext.mc_esp = (int)sp; -} - -int -swapcontext(ucontext_t *oucp, ucontext_t *ucp) -{ - if(getcontext(oucp) == 0) - setcontext(ucp); - return 0; -} |