1 files changed, 83 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..9b106a6
--- /dev/null
+++ b/src/runtime/cgo/gcc_solaris_amd64.c
@@ -0,0 +1,83 @@
+// 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;
+
+	// Sanity check the results now, rather than getting a
+	// morestack on g0 crash.
+	if (g->stacklo >= g->stackhi) {
+		fatalf("bad stack bounds: lo=%p hi=%p", (void*)(g->stacklo), (void*)(g->stackhi));
+	}
+}
+
+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) {
+		fatalf("pthread_create failed: %s", strerror(err));
+	}
+}
+
+extern void crosscall1(void (*fn)(void), void (*setg_gcc)(void*), void *g);
+static void*
+threadentry(void *v)
+{
+	ThreadStart ts;
+
+	ts = *(ThreadStart*)v;
+	free(v);
+
+	crosscall1(ts.fn, setg_gcc, (void*)ts.g);
+	return nil;
+}