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// Copyright 2015 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"
/*
* void crosscall2(void (*fn)(void*, int32), void*, int32)
* Save registers and call fn with two arguments.
*/
TEXT crosscall2(SB),NOSPLIT,$-8
/*
* We still need to save all callee save register as before, and then
* push 2 args for fn (R1 and R2).
* Also note that at procedure entry in gc world, 8(RSP) will be the
* first arg.
* TODO(minux): use LDP/STP here if it matters.
*/
SUB $128, RSP
MOVD R1, (8*1)(RSP)
MOVD R2, (8*2)(RSP)
MOVD R19, (8*3)(RSP)
MOVD R20, (8*4)(RSP)
MOVD R21, (8*5)(RSP)
MOVD R22, (8*6)(RSP)
MOVD R23, (8*7)(RSP)
MOVD R24, (8*8)(RSP)
MOVD R25, (8*9)(RSP)
MOVD R26, (8*10)(RSP)
MOVD R27, (8*11)(RSP)
MOVD g, (8*12)(RSP)
MOVD R29, (8*13)(RSP)
MOVD R30, (8*14)(RSP)
MOVD R0, R19
// Initialize Go ABI environment
BL runtime·reginit(SB)
BL runtime·load_g(SB)
BL (R19)
MOVD (8*1)(RSP), R1
MOVD (8*2)(RSP), R2
MOVD (8*3)(RSP), R19
MOVD (8*4)(RSP), R20
MOVD (8*5)(RSP), R21
MOVD (8*6)(RSP), R22
MOVD (8*7)(RSP), R23
MOVD (8*8)(RSP), R24
MOVD (8*9)(RSP), R25
MOVD (8*10)(RSP), R26
MOVD (8*11)(RSP), R27
MOVD (8*12)(RSP), g
MOVD (8*13)(RSP), R29
MOVD (8*14)(RSP), R30
ADD $128, RSP
RET
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