| // +build dragonfly freebsd | |
| // Copyright 2016 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" | |
| #include "funcdata.h" | |
| // | |
| // Syscall9 support for AMD64, DragonFly and FreeBSD | |
| // | |
| // func Syscall9(trap int64, a1, a2, a3, a4, a5, a6, a7, a8, a9 int64) (r1, r2, err int64); | |
| TEXT ·Syscall9(SB),NOSPLIT,$0-104 | |
| CALL runtime·entersyscall(SB) | |
| MOVQ num+0(FP), AX // syscall entry | |
| MOVQ a1+8(FP), DI | |
| MOVQ a2+16(FP), SI | |
| MOVQ a3+24(FP), DX | |
| MOVQ a4+32(FP), R10 | |
| MOVQ a5+40(FP), R8 | |
| MOVQ a6+48(FP), R9 | |
| // shift around the last three arguments so they're at the | |
| // top of the stack when the syscall is called. | |
| MOVQ a7+56(FP), R11 // arg 7 | |
| MOVQ R11, 8(SP) | |
| MOVQ a8+64(FP), R11 // arg 8 | |
| MOVQ R11, 16(SP) | |
| MOVQ a9+72(FP), R11 // arg 9 | |
| MOVQ R11, 24(SP) | |
| SYSCALL | |
| JCC ok9 | |
| MOVQ $-1, r1+80(FP) // r1 | |
| MOVQ $0, r2+88(FP) // r2 | |
| MOVQ AX, err+96(FP) // errno | |
| CALL runtime·exitsyscall(SB) | |
| RET | |
| ok9: | |
| MOVQ AX, r1+80(FP) // r1 | |
| MOVQ DX, r2+88(FP) // r2 | |
| MOVQ $0, err+96(FP) // errno | |
| CALL runtime·exitsyscall(SB) | |
| RET |