func Stack(buf []byte, all bool) int {
	if all {
		stopTheWorld("stack trace")
	}

	n := 0
	if len(buf) > 0 {
		gp := getg()
		sp := getcallersp(unsafe.Pointer(&buf))
		pc := getcallerpc(unsafe.Pointer(&buf))
		systemstack(func() {
			g0 := getg()
			// Force traceback=1 to override GOTRACEBACK setting,
			// so that Stack's results are consistent.
			// GOTRACEBACK is only about crash dumps.
			g0.m.traceback = 1
			g0.writebuf = buf[0:0:len(buf)]
			goroutineheader(gp)
			traceback(pc, sp, 0, gp)
			if all {
				tracebackothers(gp)
			}
			g0.m.traceback = 0
			n = len(g0.writebuf)
			g0.writebuf = nil
		})
	}

	if all {
		startTheWorld()
	}
	return n
}
// Stack formats a stack trace of the calling goroutine into buf
// and returns the number of bytes written to buf.
// If all is true, Stack formats stack traces of all other goroutines
// into buf after the trace for the current goroutine.
Stack formats a stack trace of the calling goroutine into buf
and returns the number of bytes written to buf.
If all is true, Stack formats stack traces of all other goroutines
into buf after the trace for the current goroutine.
// Stack formats a stack trace of the calling goroutine into buf // and returns the number of bytes written to buf . // If all is true Stack formats stack traces of all other goroutines // into buf after the trace for the current goroutine .
func Stack(buf []byte, all bool) int {
	if all {
		stopTheWorld("stack trace")
	}
	n := 0
	if len(buf) > 0 {
		gp := getg()
		sp := getcallersp(unsafe.Pointer(&buf))
		pc := getcallerpc(unsafe.Pointer(&buf))
		systemstack(func() {
			g0 := getg()
			g0.m.traceback = 1
			g0.writebuf = buf[0:0:len(buf)]
			goroutineheader(gp)
			traceback(pc, sp, 0, gp)
			if all {
				tracebackothers(gp)
			}
			g0.m.traceback = 0
			n = len(g0.writebuf)
			g0.writebuf = nil
		})
	}
	if all {
		startTheWorld()
	}
	return n
}
func Stack ( buf [ ] byte , all bool ) int { if all { stopTheWorld ( " " ) } n := 0 if len ( buf ) > 0 { gp := getg ( ) sp := getcallersp ( unsafe . Pointer ( & buf ) ) pc := getcallerpc ( unsafe . Pointer ( & buf ) ) systemstack ( func ( ) { g0 := getg ( ) g0 . m . traceback = 1 g0 . writebuf = buf [ 0 : 0 : len ( buf ) ] goroutineheader ( gp ) traceback ( pc , sp , 0 , gp ) if all { tracebackothers ( gp ) } g0 . m . traceback = 0 n = len ( g0 . writebuf ) g0 . writebuf = nil } ) } if all { startTheWorld ( ) } return n }
Stack formats a stack trace of the calling goroutine into buf
and returns the number of bytes written to buf.
Stack formats a stack trace of the calling goroutine into buf and returns the number of bytes written to buf .
// Force traceback=1 to override GOTRACEBACK setting, // so that Stack's results are consistent. // GOTRACEBACK is only about crash dumps.