From: Ian Lance Taylor <iant@golang.org>
Date: Sun, 3 Jan 2016 03:39:37 +0000 (-0800)
Subject: runtime: implement setsigstack for Solaris
X-Git-Tag: go1.6beta2~171
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=956535f5cbc0808a69e19c1e6953fde2bf012881;p=gostls13.git

runtime: implement setsigstack for Solaris

Change-Id: I0280d478b7d0a59d8e2082aa87fab6d7d9f36a18
Reviewed-on: https://go-review.googlesource.com/18158
Reviewed-by: Aram Hăvărneanu <aram@mgk.ro>
---

diff --git a/src/runtime/os3_solaris.go b/src/runtime/os3_solaris.go
index 0e6d2e55da..598beffa09 100644
--- a/src/runtime/os3_solaris.go
+++ b/src/runtime/os3_solaris.go
@@ -280,7 +280,14 @@ func setsig(i int32, fn uintptr, restart bool) {
 }
 
 func setsigstack(i int32) {
-	throw("setsigstack")
+	var sa sigactiont
+	sigaction(i, nil, &sa)
+	handler := *((*uintptr)(unsafe.Pointer(&sa._funcptr)))
+	if handler == 0 || handler == _SIG_DFL || handler == _SIG_IGN || sa.sa_flags&_SA_ONSTACK != 0 {
+		return
+	}
+	sa.sa_flags |= _SA_ONSTACK
+	sigaction(i, &sa, nil)
 }
 
 func getsig(i int32) uintptr {