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https://github.com/golang/go
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ed8f0e5c33
Add supporting code for runtime initialization, including both 32- and 64-bit x86 architectures. Add .ctors section on Windows to PE .o files, and INITENTRY to .ctors section to plug in to the GCC C/C++ startup initialization mechanism. This allows the Go runtime to initialize itself. Add .text section symbol for .ctor relocations. Note: This is unlikely to be useful for MSVC-based toolchains. Fixes #13494 Change-Id: I4286a96f70e5f5228acae88eef46e2bed95813f3 Reviewed-on: https://go-review.googlesource.com/18057 Reviewed-by: Ian Lance Taylor <iant@golang.org> Run-TryBot: Ian Lance Taylor <iant@golang.org>
51 lines
1.3 KiB
ArmAsm
51 lines
1.3 KiB
ArmAsm
// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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#include "textflag.h"
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TEXT _rt0_386_windows(SB),NOSPLIT,$12
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MOVL 12(SP), AX
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LEAL 16(SP), BX
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MOVL AX, 4(SP)
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MOVL BX, 8(SP)
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MOVL $-1, 0(SP) // return PC for main
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JMP _main(SB)
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// When building with -buildmode=(c-shared or c-archive), this
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// symbol is called. For dynamic libraries it is called when the
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// library is loaded. For static libraries it is called when the
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// final executable starts, during the C runtime initialization
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// phase.
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TEXT _rt0_386_windows_lib(SB),NOSPLIT,$0x1C
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MOVL BP, 0x08(SP)
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MOVL BX, 0x0C(SP)
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MOVL AX, 0x10(SP)
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MOVL CX, 0x14(SP)
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MOVL DX, 0x18(SP)
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// Create a new thread to do the runtime initialization and return.
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MOVL _cgo_sys_thread_create(SB), AX
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MOVL $_rt0_386_windows_lib_go(SB), 0x00(SP)
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MOVL $0, 0x04(SP)
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// Top two items on the stack are passed to _cgo_sys_thread_create
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// as parameters. This is the calling convention on 32-bit Windows.
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CALL AX
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MOVL 0x08(SP), BP
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MOVL 0x0C(SP), BX
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MOVL 0x10(SP), AX
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MOVL 0x14(SP), CX
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MOVL 0x18(SP), DX
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RET
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TEXT _rt0_386_windows_lib_go(SB),NOSPLIT,$0
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MOVL $0, DI
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MOVL $0, SI
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MOVL $runtime·rt0_go(SB), AX
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JMP AX
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TEXT _main(SB),NOSPLIT,$0
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JMP runtime·rt0_go(SB)
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