aboutsummaryrefslogtreecommitdiff
path: root/src/runtime/rt0_windows_386.s
blob: fa39edd787c3d5d71b2443e0ef0a49061f53cd54 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
// 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.

#include "textflag.h"

TEXT _rt0_386_windows(SB),NOSPLIT,$0
	JMP	_rt0_386(SB)

// When building with -buildmode=(c-shared or c-archive), this
// symbol is called. For dynamic libraries it is called when the
// library is loaded. For static libraries it is called when the
// final executable starts, during the C runtime initialization
// phase.
TEXT _rt0_386_windows_lib(SB),NOSPLIT,$0x1C
	MOVL	BP, 0x08(SP)
	MOVL	BX, 0x0C(SP)
	MOVL	AX, 0x10(SP)
	MOVL  CX, 0x14(SP)
	MOVL  DX, 0x18(SP)

	// Create a new thread to do the runtime initialization and return.
	MOVL	_cgo_sys_thread_create(SB), AX
	MOVL	$_rt0_386_windows_lib_go(SB), 0x00(SP)
	MOVL	$0, 0x04(SP)

	 // Top two items on the stack are passed to _cgo_sys_thread_create
	 // as parameters. This is the calling convention on 32-bit Windows.
	CALL	AX

	MOVL	0x08(SP), BP
	MOVL	0x0C(SP), BX
	MOVL	0x10(SP), AX
	MOVL	0x14(SP), CX
	MOVL	0x18(SP), DX
	RET

TEXT _rt0_386_windows_lib_go(SB),NOSPLIT,$0
	PUSHL	$0
	PUSHL	$0
	JMP	runtime·rt0_go(SB)

TEXT _main(SB),NOSPLIT,$0
	// Remove the return address from the stack.
	// rt0_go doesn't expect it to be there.
	ADDL	$4, SP
	JMP	runtime·rt0_go(SB)