| // 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. | |
| //go:build linux && (mips || mipsle) | |
| #include "textflag.h" | |
| // func Syscall6(num, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, errno uintptr) | |
| // | |
| // The 5th and 6th arg go at sp+16, sp+20. | |
| // Note that frame size of 20 means that 24 bytes gets reserved on stack. | |
| TEXT ·Syscall6(SB),NOSPLIT,$20-40 | |
| MOVW num+0(FP), R2 // syscall entry | |
| MOVW a1+4(FP), R4 | |
| MOVW a2+8(FP), R5 | |
| MOVW a3+12(FP), R6 | |
| MOVW a4+16(FP), R7 | |
| MOVW a5+20(FP), R8 | |
| MOVW a6+24(FP), R9 | |
| MOVW R8, 16(R29) | |
| MOVW R9, 20(R29) | |
| MOVW R0, R3 // reset R3 to 0 as 1-ret SYSCALL keeps it | |
| SYSCALL | |
| BEQ R7, ok | |
| MOVW $-1, R1 | |
| MOVW R1, r1+28(FP) | |
| MOVW R0, r2+32(FP) | |
| MOVW R2, errno+36(FP) | |
| RET | |
| ok: | |
| MOVW R2, r1+28(FP) | |
| MOVW R3, r2+32(FP) | |
| MOVW R0, errno+36(FP) | |
| RET | |