| Don Newton | 98fd881 | 2019-09-23 15:15:02 -0400 | [diff] [blame] | 1 | // Copyright 2016 The Go Authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style |
| 3 | // license that can be found in the LICENSE file. |
| 4 | |
| 5 | // +build s390x |
| 6 | // +build linux |
| 7 | // +build !gccgo |
| 8 | |
| 9 | #include "textflag.h" |
| 10 | |
| 11 | // |
| 12 | // System calls for s390x, Linux |
| 13 | // |
| 14 | |
| 15 | // Just jump to package syscall's implementation for all these functions. |
| 16 | // The runtime may know about them. |
| 17 | |
| 18 | TEXT ·Syscall(SB),NOSPLIT,$0-56 |
| 19 | BR syscall·Syscall(SB) |
| 20 | |
| 21 | TEXT ·Syscall6(SB),NOSPLIT,$0-80 |
| 22 | BR syscall·Syscall6(SB) |
| 23 | |
| 24 | TEXT ·SyscallNoError(SB),NOSPLIT,$0-48 |
| 25 | BL runtime·entersyscall(SB) |
| 26 | MOVD a1+8(FP), R2 |
| 27 | MOVD a2+16(FP), R3 |
| 28 | MOVD a3+24(FP), R4 |
| 29 | MOVD $0, R5 |
| 30 | MOVD $0, R6 |
| 31 | MOVD $0, R7 |
| 32 | MOVD trap+0(FP), R1 // syscall entry |
| 33 | SYSCALL |
| 34 | MOVD R2, r1+32(FP) |
| 35 | MOVD R3, r2+40(FP) |
| 36 | BL runtime·exitsyscall(SB) |
| 37 | RET |
| 38 | |
| 39 | TEXT ·RawSyscall(SB),NOSPLIT,$0-56 |
| 40 | BR syscall·RawSyscall(SB) |
| 41 | |
| 42 | TEXT ·RawSyscall6(SB),NOSPLIT,$0-80 |
| 43 | BR syscall·RawSyscall6(SB) |
| 44 | |
| 45 | TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-48 |
| 46 | MOVD a1+8(FP), R2 |
| 47 | MOVD a2+16(FP), R3 |
| 48 | MOVD a3+24(FP), R4 |
| 49 | MOVD $0, R5 |
| 50 | MOVD $0, R6 |
| 51 | MOVD $0, R7 |
| 52 | MOVD trap+0(FP), R1 // syscall entry |
| 53 | SYSCALL |
| 54 | MOVD R2, r1+32(FP) |
| 55 | MOVD R3, r2+40(FP) |
| 56 | RET |