1// Copyright 2011 The Go Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5#include "go_asm.h"
6#include "go_tls.h"
7#include "textflag.h"
8
9TEXT _rt0_amd64_windows(SB),NOSPLIT|NOFRAME,$-8
10	JMP	_rt0_amd64(SB)
11
12// When building with -buildmode=(c-shared or c-archive), this
13// symbol is called. For dynamic libraries it is called when the
14// library is loaded. For static libraries it is called when the
15// final executable starts, during the C runtime initialization
16// phase.
17// Leave space for four pointers on the stack as required
18// by the Windows amd64 calling convention.
19TEXT _rt0_amd64_windows_lib(SB),NOSPLIT|NOFRAME,$40
20	// Create a new thread to do the runtime initialization and return.
21	MOVQ	BX, 32(SP) // callee-saved, preserved across the CALL
22	MOVQ	SP, BX
23	ANDQ	$~15, SP // alignment as per Windows requirement
24	MOVQ	_cgo_sys_thread_create(SB), AX
25	MOVQ	$_rt0_amd64_windows_lib_go(SB), CX
26	MOVQ	$0, DX
27	CALL	AX
28	MOVQ	BX, SP
29	MOVQ	32(SP), BX
30	RET
31
32TEXT _rt0_amd64_windows_lib_go(SB),NOSPLIT|NOFRAME,$0
33	MOVQ  $0, DI
34	MOVQ	$0, SI
35	MOVQ	$runtime·rt0_go(SB), AX
36	JMP	AX
37