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go/misc/cgo/test/gcc68255.go
Ian Lance Taylor 2fdff9586b cmd/go: always use --whole-archive for gccgo packages
This is, in effect, what the gc toolchain does.  It fixes cases where Go
code refers to a C global variable; without this, if the global variable
was the only thing visible in the C code, the generated cgo file might
not get pulled in from the archive, leaving the Go variable
uninitialized.

This was reported against gccgo as https://gcc.gnu.org/PR68255 .

Change-Id: I3e769dd174f64050ebbff268fbbf5e6fab1e2a1b
Reviewed-on: https://go-review.googlesource.com/16775
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
2015-11-10 20:22:13 +00:00

18 lines
326 B
Go

// 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.
package cgotest
import (
"testing"
"./gcc68255"
)
func testGCC68255(t *testing.T) {
if !gcc68255.F() {
t.Error("C global variable was not initialized")
}
}