Revert "runtime: get a better g0 stack bound in needm"

This reverts CL 479915.

Reason for revert: breaks a lot google internal tests.

Change-Id: I13a9422e810af7ba58cbf4a7e6e55f4d8cc0ca51
Reviewed-on: https://go-review.googlesource.com/c/go/+/481055
Reviewed-by: Chressie Himpel <chressie@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>

3 files changed, 0 insertions, 92 deletions

diff --git a/misc/cgo/testcarchive/carchive_test.go b/misc/cgo/testcarchive/carchive_test.go
index 5996268018..8a39c24a6d 100644
--- a/misc/cgo/testcarchive/carchive_test.go
+++ b/misc/cgo/testcarchive/carchive_test.go
@@ -1247,57 +1247,3 @@ 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
deleted file mode 100644
index acb08d90ec..0000000000
--- a/misc/cgo/testcarchive/testdata/libgo9/a.go
+++ /dev/null
@@ -1,14 +0,0 @@
-// 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
deleted file mode 100644
index 95ad4dea49..0000000000
--- a/misc/cgo/testcarchive/testdata/main9.c
+++ /dev/null
@@ -1,24 +0,0 @@
-// 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
-}