From 5ce1fb94791ddae660818a03437fc17931a1eaab Mon Sep 17 00:00:00 2001
From: Ian Lance Taylor <iant@golang.org>
Date: Sun, 7 Aug 2022 19:21:15 -0700
Subject: [PATCH] runtime/cgo: add -fno-stack-protector to CFLAGS

Some compilers default to having -fstack-protector on, which breaks
when using internal linking because the linker doesn't know how to
find the support functions.

Fixes #52919
Fixes #54313

Change-Id: I6f51d5e906503f61fc768ad8e30c163bad135087
Reviewed-on: https://go-review.googlesource.com/c/go/+/421935
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Auto-Submit: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
---
 src/runtime/cgo/cgo.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/runtime/cgo/cgo.go b/src/runtime/cgo/cgo.go
index 298aa6367530cc..4b7046e2cc62db 100644
--- a/src/runtime/cgo/cgo.go
+++ b/src/runtime/cgo/cgo.go
@@ -23,7 +23,9 @@ package cgo
 #cgo solaris LDFLAGS: -lxnet
 #cgo solaris LDFLAGS: -lsocket
 
-#cgo CFLAGS: -Wall -Werror
+// We use -fno-stack-protector because internal linking won't find
+// the support functions. See issues #52919 and #54313.
+#cgo CFLAGS: -Wall -Werror -fno-stack-protector
 
 #cgo solaris CPPFLAGS: -D_POSIX_PTHREAD_SEMANTICS