summaryrefslogtreecommitdiffstats
path: root/src/runtime/cgo/gcc_solaris_amd64.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/runtime/cgo/gcc_solaris_amd64.c')
-rw-r--r--src/runtime/cgo/gcc_solaris_amd64.c77
1 files changed, 77 insertions, 0 deletions
diff --git a/src/runtime/cgo/gcc_solaris_amd64.c b/src/runtime/cgo/gcc_solaris_amd64.c
new file mode 100644
index 0000000..e89e844
--- /dev/null
+++ b/src/runtime/cgo/gcc_solaris_amd64.c
@@ -0,0 +1,77 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+#include <pthread.h>
+#include <string.h>
+#include <signal.h>
+#include <ucontext.h>
+#include "libcgo.h"
+#include "libcgo_unix.h"
+
+static void* threadentry(void*);
+static void (*setg_gcc)(void*);
+
+void
+x_cgo_init(G *g, void (*setg)(void*))
+{
+ ucontext_t ctx;
+
+ setg_gcc = setg;
+ if (getcontext(&ctx) != 0)
+ perror("runtime/cgo: getcontext failed");
+ g->stacklo = (uintptr_t)ctx.uc_stack.ss_sp;
+
+ // Solaris processes report a tiny stack when run with "ulimit -s unlimited".
+ // Correct that as best we can: assume it's at least 1 MB.
+ // See golang.org/issue/12210.
+ if(ctx.uc_stack.ss_size < 1024*1024)
+ g->stacklo -= 1024*1024 - ctx.uc_stack.ss_size;
+}
+
+void
+_cgo_sys_thread_start(ThreadStart *ts)
+{
+ pthread_attr_t attr;
+ sigset_t ign, oset;
+ pthread_t p;
+ void *base;
+ size_t size;
+ int err;
+
+ sigfillset(&ign);
+ pthread_sigmask(SIG_SETMASK, &ign, &oset);
+
+ pthread_attr_init(&attr);
+
+ if (pthread_attr_getstack(&attr, &base, &size) != 0)
+ perror("runtime/cgo: pthread_attr_getstack failed");
+ if (size == 0) {
+ ts->g->stackhi = 2 << 20;
+ if (pthread_attr_setstack(&attr, NULL, ts->g->stackhi) != 0)
+ perror("runtime/cgo: pthread_attr_setstack failed");
+ } else {
+ ts->g->stackhi = size;
+ }
+ pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
+ err = _cgo_try_pthread_create(&p, &attr, threadentry, ts);
+
+ pthread_sigmask(SIG_SETMASK, &oset, nil);
+
+ if (err != 0) {
+ fprintf(stderr, "runtime/cgo: pthread_create failed: %s\n", strerror(err));
+ abort();
+ }
+}
+
+static void*
+threadentry(void *v)
+{
+ ThreadStart ts;
+
+ ts = *(ThreadStart*)v;
+ free(v);
+
+ crosscall_amd64(ts.fn, setg_gcc, (void*)ts.g);
+ return nil;
+}