diff options
Diffstat (limited to 'misc')
-rw-r--r-- | misc/cgo/testcarchive/carchive_test.go | 54 | ||||
-rw-r--r-- | misc/cgo/testcarchive/testdata/libgo9/a.go | 14 | ||||
-rw-r--r-- | misc/cgo/testcarchive/testdata/main9.c | 24 |
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 +} |