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// Copyright 2020 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" // func Syscall(trap int64, a1, a2, a3 int64) (r1, r2, err int64); TEXT ·Syscall(SB),NOSPLIT,$0-56 JAL runtime·entersyscall(SB) MOVV a1+8(FP), R4 MOVV a2+16(FP), R5 MOVV a3+24(FP), R6 MOVV R0, R7 MOVV R0, R8 MOVV R0, R9 MOVV trap+0(FP), R2 // syscall entry SYSCALL BEQ R7, ok MOVV $-1, R1 MOVV R1, r1+32(FP) // r1 MOVV R0, r2+40(FP) // r2 MOVV R2, err+48(FP) // errno JAL runtime·exitsyscall(SB) RET ok: MOVV R2, r1+32(FP) // r1 MOVV R3, r2+40(FP) // r2 MOVV R0, err+48(FP) // errno JAL runtime·exitsyscall(SB) RET TEXT ·Syscall6(SB),NOSPLIT,$0-80 JAL runtime·entersyscall(SB) MOVV a1+8(FP), R4 MOVV a2+16(FP), R5 MOVV a3+24(FP), R6 MOVV a4+32(FP), R7 MOVV a5+40(FP), R8 MOVV a6+48(FP), R9 MOVV trap+0(FP), R2 // syscall entry SYSCALL BEQ R7, ok6 MOVV $-1, R1 MOVV R1, r1+56(FP) // r1 MOVV R0, r2+64(FP) // r2 MOVV R2, err+72(FP) // errno JAL runtime·exitsyscall(SB) RET ok6: MOVV R2, r1+56(FP) // r1 MOVV R3, r2+64(FP) // r2 MOVV R0, err+72(FP) // errno JAL runtime·exitsyscall(SB) RET // func Syscall9(trap int64, a1, a2, a3, a4, a5, a6, a7, a8, a9 int64) (r1, r2, err int64); // The openbsd/mips64 kernel only accepts eight syscall arguments, except // for SYS_syscall, where an additional argument can be passed on the stack. TEXT ·Syscall9(SB),NOSPLIT,$0-104 JAL runtime·entersyscall(SB) MOVV num+0(FP), R2 // syscall entry MOVV a1+8(FP), R4 MOVV a2+16(FP), R5 MOVV a3+24(FP), R6 MOVV a4+32(FP), R7 MOVV a5+40(FP), R8 MOVV a6+48(FP), R9 MOVV a7+56(FP), R10 MOVV a8+64(FP), R11 MOVV a9+72(FP), R12 SUBVU $16, R29 MOVV R12, 0(R29) // arg 9 - only used for SYS_syscall. SYSCALL ADDV $16, R29 BEQ R7, ok9 MOVV $-1, R1 MOVV R1, r1+80(FP) // r1 MOVV R0, r2+88(FP) // r2 MOVV R2, err+96(FP) // errno JAL runtime·exitsyscall(SB) RET ok9: MOVV R2, r1+80(FP) // r1 MOVV R3, r2+88(FP) // r2 MOVV R0, err+96(FP) // errno CALL runtime·exitsyscall(SB) RET TEXT ·RawSyscall(SB),NOSPLIT,$0-56 MOVV a1+8(FP), R4 MOVV a2+16(FP), R5 MOVV a3+24(FP), R6 MOVV R0, R7 MOVV R0, R8 MOVV R0, R9 MOVV trap+0(FP), R2 // syscall entry SYSCALL BEQ R7, ok1 MOVV $-1, R1 MOVV R1, r1+32(FP) // r1 MOVV R0, r2+40(FP) // r2 MOVV R2, err+48(FP) // errno RET ok1: MOVV R2, r1+32(FP) // r1 MOVV R3, r2+40(FP) // r2 MOVV R0, err+48(FP) // errno RET TEXT ·RawSyscall6(SB),NOSPLIT,$0-80 MOVV a1+8(FP), R4 MOVV a2+16(FP), R5 MOVV a3+24(FP), R6 MOVV a4+32(FP), R7 MOVV a5+40(FP), R8 MOVV a6+48(FP), R9 MOVV trap+0(FP), R2 // syscall entry SYSCALL BEQ R7, ok2 MOVV $-1, R1 MOVV R1, r1+56(FP) // r1 MOVV R0, r2+64(FP) // r2 MOVV R2, err+72(FP) // errno RET ok2: MOVV R2, r1+56(FP) // r1 MOVV R3, r2+64(FP) // r2 MOVV R0, err+72(FP) // errno RET