rss-tools/vendor/golang.org/x/sys/unix/asm_linux_riscv64.s (view raw)
| 1 | // Copyright 2019 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 | //go:build riscv64 && gc |
| 6 | |
| 7 | #include "textflag.h" |
| 8 | |
| 9 | // |
| 10 | // System calls for linux/riscv64. |
| 11 | // |
| 12 | // Where available, just jump to package syscall's implementation of |
| 13 | // these functions. |
| 14 | |
| 15 | TEXT ·Syscall(SB),NOSPLIT,$0-56 |
| 16 | JMP syscall·Syscall(SB) |
| 17 | |
| 18 | TEXT ·Syscall6(SB),NOSPLIT,$0-80 |
| 19 | JMP syscall·Syscall6(SB) |
| 20 | |
| 21 | TEXT ·SyscallNoError(SB),NOSPLIT,$0-48 |
| 22 | CALL runtime·entersyscall(SB) |
| 23 | MOV a1+8(FP), A0 |
| 24 | MOV a2+16(FP), A1 |
| 25 | MOV a3+24(FP), A2 |
| 26 | MOV trap+0(FP), A7 // syscall entry |
| 27 | ECALL |
| 28 | MOV A0, r1+32(FP) // r1 |
| 29 | MOV A1, r2+40(FP) // r2 |
| 30 | CALL runtime·exitsyscall(SB) |
| 31 | RET |
| 32 | |
| 33 | TEXT ·RawSyscall(SB),NOSPLIT,$0-56 |
| 34 | JMP syscall·RawSyscall(SB) |
| 35 | |
| 36 | TEXT ·RawSyscall6(SB),NOSPLIT,$0-80 |
| 37 | JMP syscall·RawSyscall6(SB) |
| 38 | |
| 39 | TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-48 |
| 40 | MOV a1+8(FP), A0 |
| 41 | MOV a2+16(FP), A1 |
| 42 | MOV a3+24(FP), A2 |
| 43 | MOV trap+0(FP), A7 // syscall entry |
| 44 | ECALL |
| 45 | MOV A0, r1+32(FP) |
| 46 | MOV A1, r2+40(FP) |
| 47 | RET |