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Diffstat (limited to '')
| -rw-r--r-- | src/syscall/asm_freebsd_arm.s | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/src/syscall/asm_freebsd_arm.s b/src/syscall/asm_freebsd_arm.s new file mode 100644 index 0000000..64d9dee --- /dev/null +++ b/src/syscall/asm_freebsd_arm.s @@ -0,0 +1,130 @@ +// Copyright 2012 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" +#include "funcdata.h" + +// +// System call support for ARM, FreeBSD +// + +// func Syscall(trap, a1, a2, a3 uintptr) (r1, r2, errno uintptr); +// func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, errno uintptr); +// func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2, errno uintptr) + +TEXT ·Syscall(SB),NOSPLIT,$0-28 + BL runtime·entersyscall(SB) + MOVW trap+0(FP), R7 // syscall number + MOVW a1+4(FP), R0 // a1 + MOVW a2+8(FP), R1 // a2 + MOVW a3+12(FP), R2 // a3 + SWI $0 // syscall + MOVW $0, R2 + BCS error + MOVW R0, r1+16(FP) // r1 + MOVW R1, r2+20(FP) // r2 + MOVW R2, err+24(FP) // errno + BL runtime·exitsyscall(SB) + RET +error: + MOVW $-1, R3 + MOVW R3, r1+16(FP) // r1 + MOVW R2, r2+20(FP) // r2 + MOVW R0, err+24(FP) // errno + BL runtime·exitsyscall(SB) + RET + +TEXT ·Syscall6(SB),NOSPLIT,$0-40 + BL runtime·entersyscall(SB) + MOVW trap+0(FP), R7 // syscall number + MOVW a1+4(FP), R0 // a1 + MOVW a2+8(FP), R1 // a2 + MOVW a3+12(FP), R2 // a3 + MOVW a4+16(FP), R3 // a4 + MOVW R13, R4 + MOVW $a5+20(FP), R13 // a5 to a6 are passed on stack + SWI $0 // syscall + MOVW R4, R13 + MOVW $0, R2 + BCS error6 + MOVW R0, r1+28(FP) // r1 + MOVW R1, r2+32(FP) // r2 + MOVW R2, err+36(FP) // errno + BL runtime·exitsyscall(SB) + RET +error6: + MOVW $-1, R3 + MOVW R3, r1+28(FP) // r1 + MOVW R2, r2+32(FP) // r2 + MOVW R0, err+36(FP) // errno + BL runtime·exitsyscall(SB) + RET + +TEXT ·Syscall9(SB),NOSPLIT,$0-52 + BL runtime·entersyscall(SB) + MOVW num+0(FP), R7 // syscall number + MOVW a1+4(FP), R0 // a1 + MOVW a2+8(FP), R1 // a2 + MOVW a3+12(FP), R2 // a3 + MOVW a4+16(FP), R3 // a4 + MOVW R13, R4 + MOVW $a5+20(FP), R13 // a5 to a9 are passed on stack + SWI $0 // syscall + MOVW R4, R13 + MOVW $0, R2 + BCS error9 + MOVW R0, r1+40(FP) // r1 + MOVW R1, r2+44(FP) // r2 + MOVW R2, err+48(FP) // errno + BL runtime·exitsyscall(SB) + RET +error9: + MOVW $-1, R3 + MOVW R3, r1+40(FP) // r1 + MOVW R2, r2+44(FP) // r2 + MOVW R0, err+48(FP) // errno + BL runtime·exitsyscall(SB) + RET + +TEXT ·RawSyscall(SB),NOSPLIT,$0-28 + MOVW trap+0(FP), R7 // syscall number + MOVW a1+4(FP), R0 // a1 + MOVW a2+8(FP), R1 // a2 + MOVW a3+12(FP), R2 // a3 + SWI $0 // syscall + MOVW $0, R2 + BCS errorr + MOVW R0, r1+16(FP) // r1 + MOVW R1, r2+20(FP) // r2 + MOVW R2, err+24(FP) // errno + RET +errorr: + MOVW $-1, R3 + MOVW R3, r1+16(FP) // r1 + MOVW R2, r2+20(FP) // r2 + MOVW R0, err+24(FP) // errno + RET + +TEXT ·RawSyscall6(SB),NOSPLIT,$0-40 + MOVW trap+0(FP), R7 // syscall number + MOVW a1+4(FP), R0 // a1 + MOVW a2+8(FP), R1 // a2 + MOVW a3+12(FP), R2 // a3 + MOVW a4+16(FP), R3 // a4 + MOVW R13, R4 + MOVW $a5+20(FP), R13 // a5 to a6 are passed on stack + SWI $0 // syscall + MOVW R4, R13 + MOVW $0, R2 + BCS errorr6 + MOVW R0, r1+28(FP) // r1 + MOVW R1, r2+32(FP) // r2 + MOVW R2, err+36(FP) // errno + RET +errorr6: + MOVW $-1, R3 + MOVW R3, r1+28(FP) // r1 + MOVW R2, r2+32(FP) // r2 + MOVW R0, err+36(FP) // errno + RET |