1 // +build dragonfly freebsd 2 3 // Copyright 2016 The Go Authors. All rights reserved. 4 // Use of this source code is governed by a BSD-style 5 // license that can be found in the LICENSE file. 6 7 #include "textflag.h" 8 #include "funcdata.h" 9 10 // 11 // Syscall9 support for AMD64, DragonFly and FreeBSD 12 // 13 14 // func Syscall9(trap int64, a1, a2, a3, a4, a5, a6, a7, a8, a9 int64) (r1, r2, err int64); 15 TEXT Syscall9(SB),NOSPLIT,$0-104 16 CALL runtimeentersyscall(SB) 17 MOVQ num+0(FP), AX // syscall entry 18 MOVQ a1+8(FP), DI 19 MOVQ a2+16(FP), SI 20 MOVQ a3+24(FP), DX 21 MOVQ a4+32(FP), R10 22 MOVQ a5+40(FP), R8 23 MOVQ a6+48(FP), R9 24 25 // shift around the last three arguments so they're at the 26 // top of the stack when the syscall is called. 27 MOVQ a7+56(FP), R11 // arg 7 28 MOVQ R11, 8(SP) 29 MOVQ a8+64(FP), R11 // arg 8 30 MOVQ R11, 16(SP) 31 MOVQ a9+72(FP), R11 // arg 9 32 MOVQ R11, 24(SP) 33 34 SYSCALL 35 JCC ok9 36 MOVQ $-1, r1+80(FP) // r1 37 MOVQ $0, r2+88(FP) // r2 38 MOVQ AX, err+96(FP) // errno 39 CALL runtimeexitsyscall(SB) 40 RET 41 ok9: 42 MOVQ AX, r1+80(FP) // r1 43 MOVQ DX, r2+88(FP) // r2 44 MOVQ $0, err+96(FP) // errno 45 CALL runtimeexitsyscall(SB) 46 RET 47
