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-rw-r--r--src/runtime/rt0_windows_amd64.s36
1 files changed, 36 insertions, 0 deletions
diff --git a/src/runtime/rt0_windows_amd64.s b/src/runtime/rt0_windows_amd64.s
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+// Copyright 2011 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 "go_asm.h"
+#include "go_tls.h"
+#include "textflag.h"
+
+TEXT _rt0_amd64_windows(SB),NOSPLIT|NOFRAME,$-8
+ JMP _rt0_amd64(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.
+// Leave space for four pointers on the stack as required
+// by the Windows amd64 calling convention.
+TEXT _rt0_amd64_windows_lib(SB),NOSPLIT|NOFRAME,$40
+ // Create a new thread to do the runtime initialization and return.
+ MOVQ BX, 32(SP) // callee-saved, preserved across the CALL
+ MOVQ SP, BX
+ ANDQ $~15, SP // alignment as per Windows requirement
+ MOVQ _cgo_sys_thread_create(SB), AX
+ MOVQ $_rt0_amd64_windows_lib_go(SB), CX
+ MOVQ $0, DX
+ CALL AX
+ MOVQ BX, SP
+ MOVQ 32(SP), BX
+ RET
+
+TEXT _rt0_amd64_windows_lib_go(SB),NOSPLIT|NOFRAME,$0
+ MOVQ $0, DI
+ MOVQ $0, SI
+ MOVQ $runtime·rt0_go(SB), AX
+ JMP AX