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- // Copyright 2013 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 "../../cmd/ld/textflag.h" // TODO: how to refer to this?
- //
- // System call support for ARM, NetBSD
- //
- // func Syscall(trap int32, a1, a2, a3 int32) (r1, r2, err int32);
- // func Syscall6(trap int32, a1, a2, a3, a4, a5, a6 int32) (r1, r2, err int32);
- // func Syscall9(trap int32, a1, a2, a3, a4, a5, a6, a7, a8, a9 int64) (r1, r2, err int32)
- TEXT ·Syscall(SB),NOSPLIT,$0-28
- BL runtime·entersyscall(SB)
- MOVW 0(FP), R0 // sigcall num
- MOVW 4(FP), R1 // a1
- MOVW 8(FP), R2 // a2
- MOVW 12(FP), R3 // a3
- SWI $0 // syscall
- MOVW $0, R2
- BCS error
- MOVW R0, 16(FP) // r1
- MOVW R1, 20(FP) // r2
- MOVW R2, 24(FP) // err
- BL runtime·exitsyscall(SB)
- RET
- error:
- MOVW $-1, R3
- MOVW R3, 16(FP) // r1
- MOVW R2, 20(FP) // r2
- MOVW R0, 24(FP) // err
- BL runtime·exitsyscall(SB)
- RET
- TEXT ·Syscall6(SB),NOSPLIT,$0-40
- BL runtime·entersyscall(SB)
- MOVW 0(FP), R0 // sigcall num
- MOVW 4(FP), R1 // a1
- MOVW 8(FP), R2 // a2
- MOVW 12(FP), R3 // a3
- MOVW R13, R4
- MOVW $16(FP), R13 // a4 to a6 are passed on stack
- SWI $0 // syscall
- MOVW R4, R13
- MOVW $0, R2
- BCS error6
- MOVW R0, 28(FP) // r1
- MOVW R1, 32(FP) // r2
- MOVW R2, 36(FP) // err
- BL runtime·exitsyscall(SB)
- RET
- error6:
- MOVW $-1, R3
- MOVW R3, 28(FP) // r1
- MOVW R2, 32(FP) // r2
- MOVW R0, 36(FP) // err
- BL runtime·exitsyscall(SB)
- RET
- TEXT ·Syscall9(SB),NOSPLIT,$0-52
- BL runtime·entersyscall(SB)
- MOVW 0(FP), R0 // sigcall num
- MOVW 4(FP), R1 // a1
- MOVW 8(FP), R2 // a2
- MOVW 12(FP), R3 // a3
- MOVW R13, R4
- MOVW $16(FP), R13 // a4 to a9 are passed on stack
- SWI $0 // syscall
- MOVW R4, R13
- MOVW $0, R2
- BCS error9
- MOVW R0, 40(FP) // r1
- MOVW R1, 44(FP) // r2
- MOVW R2, 48(FP) // err
- BL runtime·exitsyscall(SB)
- RET
- error9:
- MOVW $-1, R3
- MOVW R3, 40(FP) // r1
- MOVW R2, 44(FP) // r2
- MOVW R0, 48(FP) // err
- BL runtime·exitsyscall(SB)
- RET
- TEXT ·RawSyscall(SB),NOSPLIT,$0-28
- MOVW 0(FP), R0 // sigcall num
- MOVW 4(FP), R1 // a1
- MOVW 8(FP), R2 // a2
- MOVW 12(FP), R3 // a3
- SWI $0 // syscall
- MOVW $0, R2
- BCS errorr
- MOVW R0, 16(FP) // r1
- MOVW R1, 20(FP) // r2
- MOVW R2, 24(FP) // err
- RET
- errorr:
- MOVW $-1, R3
- MOVW R3, 16(FP) // r1
- MOVW R2, 20(FP) // r2
- MOVW R0, 24(FP) // err
- RET
- TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
- MOVW 0(FP), R0 // sigcall num
- MOVW 4(FP), R1 // a1
- MOVW 8(FP), R2 // a2
- MOVW 12(FP), R3 // a3
- MOVW R13, R4
- MOVW $16(FP), R13 // a4 to a9 are passed on stack
- SWI $0 // syscall
- MOVW R4, R13
- MOVW $0, R2
- BCS errorr6
- MOVW R0, 28(FP) // r1
- MOVW R1, 32(FP) // r2
- MOVW R2, 36(FP) // err
- RET
- errorr6:
- MOVW $-1, R3
- MOVW R3, 28(FP) // r1
- MOVW R2, 32(FP) // r2
- MOVW R0, 36(FP) // err
- RET
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