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https://github.com/golang/go
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d05ce23756
Occasionally the signal will be sent to a Go thread, which will cause the program to exit with SIGQUIT rather than SIGSEGV. Add TestSignalForwardingGo to test the case where the signal is expected to be delivered to a Go thread. This is a roll forward of CL 419014 which was rolled back in CL 424954. This CL differs from 419014 in that it skips TestSignalForwardingGo on darwin-amd64. Fixes #53907 Change-Id: I5df3fd610c068df3bd48d9b3d7a9379248b97999 Reviewed-on: https://go-review.googlesource.com/c/go/+/425002 Run-TryBot: Ian Lance Taylor <iant@google.com> Reviewed-by: Bryan Mills <bcmills@google.com> Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@google.com> Auto-Submit: Ian Lance Taylor <iant@google.com>
87 lines
1.5 KiB
Go
87 lines
1.5 KiB
Go
// Copyright 2015 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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/*
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#include <signal.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <stdio.h>
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// Raise SIGPIPE.
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static void CRaiseSIGPIPE() {
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int fds[2];
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if (pipe(fds) == -1) {
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perror("pipe");
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exit(EXIT_FAILURE);
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}
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// Close the reader end
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close(fds[0]);
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// Write to the writer end to provoke a SIGPIPE
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if (write(fds[1], "some data", 9) != -1) {
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fprintf(stderr, "write to a closed pipe succeeded\n");
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exit(EXIT_FAILURE);
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}
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close(fds[1]);
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}
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*/
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import "C"
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import (
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"fmt"
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"os"
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"runtime"
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)
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// RunGoroutines starts some goroutines that don't do anything.
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// The idea is to get some threads going, so that a signal will be delivered
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// to a thread started by Go.
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//export RunGoroutines
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func RunGoroutines() {
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for i := 0; i < 4; i++ {
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go func() {
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runtime.LockOSThread()
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select {}
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}()
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}
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}
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// Block blocks the current thread while running Go code.
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//export Block
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func Block() {
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select {}
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}
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var P *byte
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// TestSEGV makes sure that an invalid address turns into a run-time Go panic.
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//export TestSEGV
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func TestSEGV() {
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defer func() {
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if recover() == nil {
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fmt.Fprintln(os.Stderr, "no panic from segv")
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os.Exit(1)
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}
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}()
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*P = 0
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fmt.Fprintln(os.Stderr, "continued after segv")
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os.Exit(1)
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}
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// Noop ensures that the Go runtime is initialized.
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//export Noop
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func Noop() {
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}
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// Raise SIGPIPE.
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//export GoRaiseSIGPIPE
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func GoRaiseSIGPIPE() {
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C.CRaiseSIGPIPE()
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}
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func main() {
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}
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