// Copyright 2009 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.

package syscall
#include "runtime.h"
#include "os.h"

func loadlibraryex(filename uintptr) (handle uint32) {
	StdcallParams p;
	p.fn = (void*)runtime·LoadLibraryEx;
	p.args[0] = filename;
	p.args[1] = 0;
	p.args[2] = 0;
	p.n = 3;
	runtime·syscall(&p);
	handle = p.r;
}

func getprocaddress(handle uint32, procname uintptr) (proc uintptr) {
	StdcallParams p;
	p.fn = (void*)runtime·GetProcAddress;
	p.args[0] = handle;
	p.args[1] = procname;
	p.n = 2;
	runtime·syscall(&p);
	proc = p.r;
}

func Syscall(trap uintptr, a1 uintptr, a2 uintptr, a3 uintptr) (r1 uintptr, r2 uintptr, err uintptr) {
	StdcallParams p;
	p.fn = (void*)trap;
	p.args[0] = a1;
	p.args[1] = a2;
	p.args[2] = a3;
	p.n = 3;
	runtime·syscall(&p);
	r1 = p.r;
	r2 = 0;
	err = p.err;
}

func Syscall6(trap uintptr, a1 uintptr, a2 uintptr, a3 uintptr, a4 uintptr, a5 uintptr, a6 uintptr) (r1 uintptr, r2 uintptr, err uintptr) {
	StdcallParams p;
	p.fn = (void*)trap;
	p.args[0] = a1;
	p.args[1] = a2;
	p.args[2] = a3;
	p.args[3] = a4;
	p.args[4] = a5;
	p.args[5] = a6;
	p.n = 6;
	runtime·syscall(&p);
	r1 = p.r;
	r2 = 0;
	err = p.err;
}

func Syscall9(trap uintptr, a1 uintptr, a2 uintptr, a3 uintptr, a4 uintptr, a5 uintptr, a6 uintptr, a7 uintptr, a8 uintptr, a9 uintptr) (r1 uintptr, r2 uintptr, lasterr uintptr) {
	StdcallParams p;
	p.fn = (void*)trap;
	p.args[0] = a1;
	p.args[1] = a2;
	p.args[2] = a3;
	p.args[3] = a4;
	p.args[4] = a5;
	p.args[5] = a6;
	p.args[6] = a7;
	p.args[7] = a8;
	p.args[8] = a9;
	p.n = 9;
	runtime·syscall(&p);
	r1 = p.r;
	r2 = 0;
	lasterr = p.err;
}

func Syscall12(trap uintptr, a1 uintptr, a2 uintptr, a3 uintptr, a4 uintptr, a5 uintptr, a6 uintptr, a7 uintptr, a8 uintptr, a9 uintptr, a10 uintptr, a11 uintptr, a12 uintptr) (r1 uintptr, r2 uintptr, lasterr uintptr) {
	StdcallParams p;
	p.fn = (void*)trap;
	p.args[0] = a1;
	p.args[1] = a2;
	p.args[2] = a3;
	p.args[3] = a4;
	p.args[4] = a5;
	p.args[5] = a6;
	p.args[6] = a7;
	p.args[7] = a8;
	p.args[8] = a9;
	p.args[9] = a10;
	p.args[10] = a11;
	p.args[11] = a12;
	p.n = 12;
	runtime·syscall(&p);
	r1 = p.r;
	r2 = 0;
	lasterr = p.err;
}

func RawSyscall(trap uintptr, a1 uintptr, a2 uintptr, a3 uintptr) (r1 uintptr, r2 uintptr, err uintptr) {
	StdcallParams p;
	p.fn = (void*)trap;
	p.args[0] = a1;
	p.args[1] = a2;
	p.args[2] = a3;
	p.n = 3;
	runtime·syscall(&p);
	r1 = p.r;
	r2 = 0;
	err = p.err;
}