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-rw-r--r--misc/cgo/testcarchive/carchive_test.go54
-rw-r--r--misc/cgo/testcarchive/testdata/libgo9/a.go14
-rw-r--r--misc/cgo/testcarchive/testdata/main9.c24
3 files changed, 92 insertions, 0 deletions
diff --git a/misc/cgo/testcarchive/carchive_test.go b/misc/cgo/testcarchive/carchive_test.go
index 8a39c24a6d..5996268018 100644
--- a/misc/cgo/testcarchive/carchive_test.go
+++ b/misc/cgo/testcarchive/carchive_test.go
@@ -1247,3 +1247,57 @@ func TestPreemption(t *testing.T) {
t.Error(err)
}
}
+
+// Issue 59294. Test calling Go function from C after using some
+// stack space.
+func TestDeepStack(t *testing.T) {
+ t.Parallel()
+
+ if !testWork {
+ defer func() {
+ os.Remove("testp9" + exeSuffix)
+ os.Remove("libgo9.a")
+ os.Remove("libgo9.h")
+ }()
+ }
+
+ cmd := exec.Command("go", "build", "-buildmode=c-archive", "-o", "libgo9.a", "./libgo9")
+ out, err := cmd.CombinedOutput()
+ t.Logf("%v\n%s", cmd.Args, out)
+ if err != nil {
+ t.Fatal(err)
+ }
+ checkLineComments(t, "libgo9.h")
+ checkArchive(t, "libgo9.a")
+
+ // build with -O0 so the C compiler won't optimize out the large stack frame
+ ccArgs := append(cc, "-O0", "-o", "testp9"+exeSuffix, "main9.c", "libgo9.a")
+ out, err = exec.Command(ccArgs[0], ccArgs[1:]...).CombinedOutput()
+ t.Logf("%v\n%s", ccArgs, out)
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ argv := cmdToRun("./testp9")
+ cmd = exec.Command(argv[0], argv[1:]...)
+ sb := new(strings.Builder)
+ cmd.Stdout = sb
+ cmd.Stderr = sb
+ if err := cmd.Start(); err != nil {
+ t.Fatal(err)
+ }
+
+ timer := time.AfterFunc(time.Minute,
+ func() {
+ t.Error("test program timed out")
+ cmd.Process.Kill()
+ },
+ )
+ defer timer.Stop()
+
+ err = cmd.Wait()
+ t.Logf("%v\n%s", cmd.Args, sb)
+ if err != nil {
+ t.Error(err)
+ }
+}
diff --git a/misc/cgo/testcarchive/testdata/libgo9/a.go b/misc/cgo/testcarchive/testdata/libgo9/a.go
new file mode 100644
index 0000000000..acb08d90ec
--- /dev/null
+++ b/misc/cgo/testcarchive/testdata/libgo9/a.go
@@ -0,0 +1,14 @@
+// Copyright 2023 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 main
+
+import "runtime"
+
+import "C"
+
+func main() {}
+
+//export GoF
+func GoF() { runtime.GC() }
diff --git a/misc/cgo/testcarchive/testdata/main9.c b/misc/cgo/testcarchive/testdata/main9.c
new file mode 100644
index 0000000000..95ad4dea49
--- /dev/null
+++ b/misc/cgo/testcarchive/testdata/main9.c
@@ -0,0 +1,24 @@
+// Copyright 2023 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 "libgo9.h"
+
+void use(int *x) { (*x)++; }
+
+void callGoFWithDeepStack() {
+ int x[10000];
+
+ use(&x[0]);
+ use(&x[9999]);
+
+ GoF();
+
+ use(&x[0]);
+ use(&x[9999]);
+}
+
+int main() {
+ GoF(); // call GoF without using much stack
+ callGoFWithDeepStack(); // call GoF with a deep stack
+}