MOVD	LR, R10

	// We're coming from C code, initialize R0
	MOVD	$0, R0

	// If no traceback function, do usual sigtramp.
	MOVD	runtime·cgoTraceback(SB), R6
	CMP	$0, R6
	BEQ	sigtramp

	// If no traceback support function, which means that
	// runtime/cgo was not linked in, do usual sigtramp.
	MOVD	_cgo_callers(SB), R6
	CMP	$0, R6
	BEQ	sigtramp

		}
	}
}

void tcSymbolizer(void *parg) {
	struct cgoSymbolizerArg* arg = (struct cgoSymbolizerArg*)(parg);
	if (arg->pc == 0) {
		return;
	}
	// Report two lines per PC returned by traceback, to test more handling.
	arg->more = arg->file == NULL;
	arg->file = "tracebackctxt.go";
	arg->func = "cFunction";
	arg->lineno = arg->pc + (arg->more << 16);
}

void TracebackContextPreemptionCallGo(int i) {

// Used instead of sigtramp in programs that use cgo.
// Arguments from kernel are in DI, SI, DX.
TEXT runtime·cgoSigtramp(SB),NOSPLIT,$0
	// If no traceback function, do usual sigtramp.
	MOVQ	runtime·cgoTraceback(SB), AX
	TESTQ	AX, AX
	JZ	sigtramp

	// If no traceback support function, which means that
	// runtime/cgo was not linked in, do usual sigtramp.
	MOVQ	_cgo_callers(SB), AX
	TESTQ	AX, AX
	JZ	sigtramp

package main

import (
	"runtime"
	"runtime/debug"
	"unsafe"
)

func init() {
	register("BadTraceback", BadTraceback)
}

func BadTraceback() {
	// Disable GC to prevent traceback at unexpected time.
	debug.SetGCPercent(-1)
	// Out of an abundance of caution, also make sure that there are
	// no GCs actively in progress.
	runtime.GC()

	// Run badLR1 on its own stack to minimize the stack size and

	MOVD	LR, R10
	// Save R27, g because they will be clobbered,
	// we need to restore them before jump to sigtramp.
	MOVD	R27, R11
	MOVD	g, R12

	// If no traceback function, do usual sigtramp.
	MOVD	runtime·cgoTraceback(SB), R6
	CBZ	R6, sigtramp

	// If no traceback support function, which means that
	// runtime/cgo was not linked in, do usual sigtramp.
	MOVD	_cgo_callers(SB), R7
	CBZ	R7, sigtramp

If converting TF RNN to TFLite fused RNN ops, please prefix [RNN] in the title.

### 5. (optional) Any other info / logs

	// GoOnly includes only Go symbols that runtime will symbolize.
	// Go+C includes C symbols that runtime will not symbolize.
	for _, traceback := range []string{"GoOnly", "Go+C"} {
		t.Run("traceback"+traceback, func(t *testing.T) {
			cmd := exec.Command(testenv.GoToolPath(t), "run", prog)
			if traceback != "GoOnly" {
				cmd.Env = append(os.Environ(), "SETCGOTRACEBACK=1")
			}
			cmd.Stderr = new(bytes.Buffer)

// Used instead of sigtramp in programs that use cgo.
// Arguments from kernel are in DI, SI, DX.
TEXT runtime·cgoSigtramp(SB),NOSPLIT,$0
	// If no traceback function, do usual sigtramp.
	MOVQ	runtime·cgoTraceback(SB), AX
	TESTQ	AX, AX
	JZ	sigtramp

	// If no traceback support function, which means that
	// runtime/cgo was not linked in, do usual sigtramp.
	MOVQ	_cgo_callers(SB), AX
	TESTQ	AX, AX
	JZ	sigtramp

// license that can be found in the LICENSE file.

package main

// This program failed when run under the C/C++ ThreadSanitizer.
// There was no TSAN synchronization for the call to the cgo
// traceback routine.

/*
#cgo CFLAGS: -g -fsanitize=thread
#cgo LDFLAGS: -g -fsanitize=thread

#include <pthread.h>
#include <stdint.h>
#include <stdlib.h>
#include <sys/time.h>
#include <unistd.h>

//go:build !js && !wasip1

// Copyright 2021 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.

// Ensure that runtime traceback does not infinite loop for
// the testcase below.

package main

import (
	"bytes"
	"io/ioutil"
	"log"
	"os"
	"os/exec"
	"path/filepath"
)

const prog = `

package main