diff options
Diffstat (limited to 'src/pkg/runtime/os_freebsd.c')
| -rw-r--r-- | src/pkg/runtime/os_freebsd.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/src/pkg/runtime/os_freebsd.c b/src/pkg/runtime/os_freebsd.c index ab1edcd93..4c58b531c 100644 --- a/src/pkg/runtime/os_freebsd.c +++ b/src/pkg/runtime/os_freebsd.c @@ -42,12 +42,37 @@ getncpu(void) // FreeBSD's umtx_op syscall is effectively the same as Linux's futex, and // thus the code is largely similar. See linux/thread.c and lock_futex.c for comments. +static void futexsleep(void); + #pragma textflag NOSPLIT void runtime·futexsleep(uint32 *addr, uint32 val, int64 ns) { + void (*fn)(void); + + g->m->ptrarg[0] = addr; + g->m->scalararg[0] = val; + g->m->ptrarg[1] = &ns; + + fn = futexsleep; + runtime·onM(&fn); +} + +static void +futexsleep(void) +{ + uint32 *addr; + uint32 val; + int64 ns; int32 ret; Timespec ts; + + addr = g->m->ptrarg[0]; + val = g->m->scalararg[0]; + ns = *(int64*)g->m->ptrarg[1]; + g->m->ptrarg[0] = nil; + g->m->scalararg[0] = 0; + g->m->ptrarg[1] = nil; if(ns < 0) { ret = runtime·sys_umtx_op(addr, UMTX_OP_WAIT_UINT_PRIVATE, val, nil, nil); |