// Do the accounting that cgocall will not have a chance to do
		// during an unwind.
		//
		// In the case where a Go call originates from C, ncgo is 0
		// and there is no matching cgocall to end.
		if mp.ncgo > 0 {
			mp.incgo = false
			mp.ncgo--
			osPreemptExtExit(mp)
		}

		// Undo the call to lockOSThread in cgocallbackg, only on the
		// panicking path. In normal return case cgocallbackg will call

	JZ	sigtramp

	// Figure out if we are currently in a cgo call.
	// If not, just do usual sigtramp.
	get_tls(CX)
	MOVQ	g(CX),AX
	TESTQ	AX, AX
	JZ	sigtrampnog     // g == nil
	MOVQ	g_m(AX), AX
	TESTQ	AX, AX
	JZ	sigtramp        // g.m == nil
	MOVL	m_ncgo(AX), CX
	TESTL	CX, CX
	JZ	sigtramp        // g.m.ncgo == 0
	MOVQ	m_curg(AX), CX
	TESTQ	CX, CX
	JZ	sigtramp        // g.m.curg == nil
	MOVQ	g_syscallsp(CX), CX

	JZ	sigtramp

	// Figure out if we are currently in a cgo call.
	// If not, just do usual sigtramp.
	get_tls(CX)
	MOVQ	g(CX),AX
	TESTQ	AX, AX
	JZ	sigtrampnog     // g == nil
	MOVQ	g_m(AX), AX
	TESTQ	AX, AX
	JZ	sigtramp        // g.m == nil
	MOVL	m_ncgo(AX), CX
	TESTL	CX, CX
	JZ	sigtramp        // g.m.ncgo == 0
	MOVQ	m_curg(AX), CX
	TESTQ	CX, CX
	JZ	sigtramp        // g.m.curg == nil
	MOVQ	g_syscallsp(CX), CX

	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

	// Inspect the g in TLS without clobbering R30/R31 via runtime.load_g.
	MOVD	runtime·tls_g(SB), R9
	MOVD	0(R9), R9

	// Figure out if we are currently in a cgo call.
	// If not, just do usual sigtramp.
	// compared to ARM64 and others.

	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

	// Figure out if we are currently in a cgo call.
	// If not, just do usual sigtramp.
	// first save R0, because runtime·load_g will clobber it.
	MOVD	R0, R8
	// Set up g register.

	JZ	sigtramp

	// Figure out if we are currently in a cgo call.
	// If not, just do usual sigtramp.
	get_tls(CX)
	MOVQ	g(CX),AX
	TESTQ	AX, AX
	JZ	sigtrampnog     // g == nil
	MOVQ	g_m(AX), AX
	TESTQ	AX, AX
	JZ	sigtramp        // g.m == nil
	MOVL	m_ncgo(AX), CX
	TESTL	CX, CX
	JZ	sigtramp        // g.m.ncgo == 0
	MOVQ	m_curg(AX), CX
	TESTQ	CX, CX
	JZ	sigtramp        // g.m.curg == nil
	MOVQ	g_syscallsp(CX), CX

// Test that -static works when not using cgo.  This test is in
// misc/cgo to take advantage of the testing framework support for
// when -static is expected to work.

package nocgo

func NoCgo() int {
	c := make(chan int)

	// The test is run with external linking, which means that
	// goroutines will be created via the runtime/cgo package.
	// Make sure that works.
	go func() {
		c <- 42
	}()

	needextram    bool
	traceback     uint8
	ncgocall      uint64        // number of cgo calls in total
	ncgo          int32         // number of cgo calls currently in progress
	cgoCallersUse atomic.Uint32 // if non-zero, cgoCallers in use temporarily
	cgoCallers    *cgoCallers   // cgo traceback if crashing in cgo call
	park          note
	alllink       *m // on allm
	schedlink     muintptr
	lockedg       guintptr

	// Trapping instruction or we're at the function entry point.
	return u.frame.pc
}

// cgoCallers populates pcBuf with the cgo callers of the current frame using
// the registered cgo unwinder. It returns the number of PCs written to pcBuf.
// If the current frame is not a cgo frame or if there's no registered cgo
// unwinder, it returns 0.
func (u *unwinder) cgoCallers(pcBuf []uintptr) int {

/*
Package cgo contains runtime support for code generated
by the cgo tool.  See the documentation for the cgo command
for details on using cgo.
*/
package cgo

/*

#cgo darwin,!arm64 LDFLAGS: -lpthread
#cgo darwin,arm64 LDFLAGS: -framework CoreFoundation
#cgo dragonfly LDFLAGS: -lpthread
#cgo freebsd LDFLAGS: -lpthread
#cgo android LDFLAGS: -llog
#cgo !android,linux LDFLAGS: -lpthread