//
// Callers should set the unwindSilentErrors flag on u.
func tracebackPCs(u *unwinder, skip int, pcBuf []uintptr) int {
	var cgoBuf [32]uintptr
	n := 0
	for ; n < len(pcBuf) && u.valid(); u.next() {
		f := u.frame.fn
		cgoN := u.cgoCallers(cgoBuf[:])

		// TODO: Why does &u.cache cause u to escape? (Same in traceback2)

! stderr 'gccgo.*-lalib.*-lalib' # make sure -lalib is only passed once

-- go.mod --
module m
-- cgoref.go --
package main
// #cgo LDFLAGS: -L alibpath -lalib
// void f(void) {}
import "C"

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

//go:build loong64

package runtime

import "unsafe"

// adjust Gobuf as if it executed a call to fn with context ctxt
// and then did an immediate Gosave.
func gostartcall(buf *gobuf, fn, ctxt unsafe.Pointer) {
	if buf.lr != 0 {
		throw("invalid use of gostartcall")
	}
	buf.lr = buf.pc
	buf.pc = uintptr(fn)
	buf.ctxt = ctxt

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package runtime

import "unsafe"

// adjust Gobuf as if it executed a call to fn with context ctxt
// and then did an immediate Gosave.
func gostartcall(buf *gobuf, fn, ctxt unsafe.Pointer) {
	if buf.lr != 0 {
		throw("invalid use of gostartcall")
	}
	buf.lr = buf.pc
	buf.pc = uintptr(fn)
	buf.ctxt = ctxt

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package runtime

import "unsafe"

// adjust Gobuf as if it executed a call to fn with context ctxt
// and then did an immediate Gosave.
func gostartcall(buf *gobuf, fn, ctxt unsafe.Pointer) {
	if buf.lr != 0 {
		throw("invalid use of gostartcall")
	}
	buf.lr = buf.pc
	buf.pc = uintptr(fn)
	buf.ctxt = ctxt

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

//go:build mips || mipsle

package runtime

import "unsafe"

// adjust Gobuf as if it executed a call to fn with context ctxt
// and then did an immediate Gosave.
func gostartcall(buf *gobuf, fn, ctxt unsafe.Pointer) {
	if buf.lr != 0 {
		throw("invalid use of gostartcall")
	}
	buf.lr = buf.pc
	buf.pc = uintptr(fn)
	buf.ctxt = ctxt

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package runtime

import "unsafe"

// adjust Gobuf as if it executed a call to fn with context ctxt
// and then did an immediate Gosave.
func gostartcall(buf *gobuf, fn, ctxt unsafe.Pointer) {
	if buf.lr != 0 {
		throw("invalid use of gostartcall")
	}
	buf.lr = buf.pc
	buf.pc = uintptr(fn)
	buf.ctxt = ctxt
}

//go:build amd64 || 386

package runtime

import (
	"internal/goarch"
	"unsafe"
)

// adjust Gobuf as if it executed a call to fn with context ctxt
// and then stopped before the first instruction in fn.
func gostartcall(buf *gobuf, fn, ctxt unsafe.Pointer) {
	sp := buf.sp
	sp -= goarch.PtrSize
	*(*uintptr)(unsafe.Pointer(sp)) = buf.pc
	buf.sp = sp
	buf.pc = uintptr(fn)

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package runtime

import "unsafe"

// adjust Gobuf as if it executed a call to fn with context ctxt
// and then did an immediate Gosave.
func gostartcall(buf *gobuf, fn, ctxt unsafe.Pointer) {
	if buf.lr != 0 {
		throw("invalid use of gostartcall")
	}
	buf.lr = buf.pc
	buf.pc = uintptr(fn)
	buf.ctxt = ctxt

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

//go:build mips64 || mips64le

package runtime

import "unsafe"

// adjust Gobuf as if it executed a call to fn with context ctxt
// and then did an immediate Gosave.
func gostartcall(buf *gobuf, fn, ctxt unsafe.Pointer) {
	if buf.lr != 0 {
		throw("invalid use of gostartcall")
	}
	buf.lr = buf.pc
	buf.pc = uintptr(fn)
	buf.ctxt = ctxt