1 files changed, 0 insertions, 115 deletions
diff --git a/libgo/misc/cgo/test/issue7978.go b/libgo/misc/cgo/test/issue7978.go
deleted file mode 100644
index f0809d35d80..00000000000
--- a/libgo/misc/cgo/test/issue7978.go
+++ /dev/null
@@ -1,115 +0,0 @@
-// Copyright 2014 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.
-
-// Issue 7978.  Stack tracing didn't work during cgo code after calling a Go
-// callback.  Make sure GC works and the stack trace is correct.
-
-package cgotest
-
-/*
-#include <stdint.h>
-
-void issue7978cb(void);
-
-// use ugly atomic variable sync since that doesn't require calling back into
-// Go code or OS dependencies
-static void issue7978c(uint32_t *sync) {
-	while(__atomic_load_n(sync, __ATOMIC_SEQ_CST) != 0)
-		;
-	__atomic_add_fetch(sync, 1, __ATOMIC_SEQ_CST);
-	while(__atomic_load_n(sync, __ATOMIC_SEQ_CST) != 2)
-		;
-	issue7978cb();
-	__atomic_add_fetch(sync, 1, __ATOMIC_SEQ_CST);
-	while(__atomic_load_n(sync, __ATOMIC_SEQ_CST) != 6)
-		;
-}
-*/
-import "C"
-
-import (
-	"runtime"
-	"runtime/debug"
-	"strings"
-	"sync/atomic"
-	"testing"
-)
-
-var issue7978sync uint32
-
-func issue7978check(t *testing.T, wantFunc string, badFunc string, depth int) {
-	runtime.GC()
-	buf := make([]byte, 65536)
-	trace := string(buf[:runtime.Stack(buf, true)])
-	for _, goroutine := range strings.Split(trace, "\n\n") {
-		if strings.Contains(goroutine, "test.issue7978go") {
-			trace := strings.Split(goroutine, "\n")
-			// look for the expected function in the stack
-			for i := 0; i < depth; i++ {
-				if badFunc != "" && strings.Contains(trace[1+2*i], badFunc) {
-					t.Errorf("bad stack: found %s in the stack:\n%s", badFunc, goroutine)
-					return
-				}
-				if strings.Contains(trace[1+2*i], wantFunc) {
-					return
-				}
-			}
-			t.Errorf("bad stack: didn't find %s in the stack:\n%s", wantFunc, goroutine)
-			return
-		}
-	}
-	t.Errorf("bad stack: goroutine not found. Full stack dump:\n%s", trace)
-}
-
-func issue7978wait(store uint32, wait uint32) {
-	if store != 0 {
-		atomic.StoreUint32(&issue7978sync, store)
-	}
-	for atomic.LoadUint32(&issue7978sync) != wait {
-		runtime.Gosched()
-	}
-}
-
-//export issue7978cb
-func issue7978cb() {
-	// Force a stack growth from the callback to put extra
-	// pressure on the runtime. See issue #17785.
-	growStack(64)
-	issue7978wait(3, 4)
-}
-
-func growStack(n int) int {
-	var buf [128]int
-	if n == 0 {
-		return 0
-	}
-	return buf[growStack(n-1)]
-}
-
-func issue7978go() {
-	C.issue7978c((*C.uint32_t)(&issue7978sync))
-	issue7978wait(7, 8)
-}
-
-func test7978(t *testing.T) {
-	if runtime.Compiler == "gccgo" {
-		t.Skip("gccgo can not do stack traces of C code")
-	}
-	debug.SetTraceback("2")
-	issue7978sync = 0
-	go issue7978go()
-	// test in c code, before callback
-	issue7978wait(0, 1)
-	issue7978check(t, "_Cfunc_issue7978c(", "", 1)
-	// test in go code, during callback
-	issue7978wait(2, 3)
-	issue7978check(t, "test.issue7978cb(", "test.issue7978go", 3)
-	// test in c code, after callback
-	issue7978wait(4, 5)
-	issue7978check(t, "_Cfunc_issue7978c(", "_cgoexpwrap", 1)
-	// test in go code, after return from cgo
-	issue7978wait(6, 7)
-	issue7978check(t, "test.issue7978go(", "", 3)
-	atomic.StoreUint32(&issue7978sync, 8)
-}