File size: 954 Bytes
e36aeda | 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 48 49 | // Copyright 2022 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"
// func Syscall6(num, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, errno uintptr)
TEXT ·Syscall6<ABIInternal>(SB),NOSPLIT,$0-80
#ifdef GOEXPERIMENT_regabiargs
MOVD R2, R1
MOVD R3, R2
MOVD R4, R3
MOVD R5, R4
MOVD R6, R5
MOVD R7, R6
MOVD R8, R7
#else
MOVD num+0(FP), R1 // syscall entry
MOVD a1+8(FP), R2
MOVD a2+16(FP), R3
MOVD a3+24(FP), R4
MOVD a4+32(FP), R5
MOVD a5+40(FP), R6
MOVD a6+48(FP), R7
#endif
SYSCALL
MOVD $0xfffffffffffff001, R8
CMPUBLT R2, R8, ok
#ifdef GOEXPERIMENT_regabiargs
MOVD $0, R3
NEG R2, R4
MOVD $-1, R2
#else
MOVD $-1, r1+56(FP)
MOVD $0, r2+64(FP)
NEG R2, R2
MOVD R2, errno+72(FP)
#endif
RET
ok:
#ifdef GOEXPERIMENT_regabiargs
MOVD $0, R4
#else
MOVD R2, r1+56(FP)
MOVD R3, r2+64(FP)
MOVD $0, errno+72(FP)
#endif
RET
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