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d17506e52d
There is a #pragma dynexport crosscall2, to help SWIG, and 6l cannot export the symbol if it doesn't get to see it. R=golang-dev, iant CC=golang-dev https://golang.org/cl/7448044
46 lines
985 B
ArmAsm
46 lines
985 B
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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/*
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* void crosscall2(void (*fn)(void*, int32), void*, int32)
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* Save registers and call fn with two arguments.
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*/
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TEXT crosscall2(SB),7,$0
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SUBQ $0x58, SP /* keeps stack pointer 32-byte aligned */
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MOVQ BX, 0x10(SP)
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MOVQ BP, 0x18(SP)
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MOVQ R12, 0x20(SP)
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MOVQ R13, 0x28(SP)
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MOVQ R14, 0x30(SP)
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MOVQ R15, 0x38(SP)
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#ifdef GOOS_windows
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// Win64 save RBX, RBP, RDI, RSI, RSP, R12, R13, R14, and R15
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MOVQ DI, 0x40(SP)
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MOVQ SI, 0x48(SP)
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MOVQ DX, 0(SP) /* arg */
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MOVQ R8, 8(SP) /* argsize (includes padding) */
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CALL CX /* fn */
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MOVQ 0x40(SP), DI
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MOVQ 0x48(SP), SI
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#else
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MOVQ SI, 0(SP) /* arg */
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MOVQ DX, 8(SP) /* argsize (includes padding) */
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CALL DI /* fn */
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#endif
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MOVQ 0x10(SP), BX
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MOVQ 0x18(SP), BP
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MOVQ 0x20(SP), R12
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MOVQ 0x28(SP), R13
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MOVQ 0x30(SP), R14
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MOVQ 0x38(SP), R15
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ADDQ $0x58, SP
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RET
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