mirror of
https://github.com/golang/go
synced 2024-09-30 16:28:32 -06:00
c21f1d5ef3
Fix many incorrect FP references and a few other details. Some errors remain, especially in vlop, but fixing them requires semantics. For another day. Change-Id: Ib769fb519b465e79fc08d004a51acc5644e8b259 Reviewed-on: https://go-review.googlesource.com/5288 Reviewed-by: Russ Cox <rsc@golang.org>
135 lines
2.9 KiB
ArmAsm
135 lines
2.9 KiB
ArmAsm
// Copyright 2014 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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#include "textflag.h"
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//
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// System call support for ARM, Darwin
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//
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// func Syscall(syscall uintptr, a1, a2, a3 uintptr) (r1, r2, err uintptr)
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TEXT ·Syscall(SB),NOSPLIT,$0-28
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BL runtime·entersyscall(SB)
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MOVW syscall+4(SP), R12
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MOVW a1+8(SP), R0
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MOVW a2+12(SP), R1
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MOVW a3+16(SP), R2
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SWI $0x80
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BCC ok
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MOVW $-1, R1
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MOVW R1, r1+20(SP) // r1
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MOVW $0, R2
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MOVW R2, r2+24(SP) // r2
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MOVW R0, errno+28(SP) // errno
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BL runtime·exitsyscall(SB)
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RET
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ok:
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MOVW R0, r1+20(SP) // r1
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MOVW R1, r2+24(SP) // r2
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MOVW $0, R0
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MOVW R0, errno+28(SP) // errno
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BL runtime·exitsyscall(SB)
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RET
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// func RawSyscall(trap uintptr, a1, a2, a3 uintptr) (r1, r2, err uintptr)
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TEXT ·RawSyscall(SB),NOSPLIT,$0-28
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MOVW syscall+4(SP), R12 // syscall entry
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MOVW a1+8(SP), R0
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MOVW a2+12(SP), R1
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MOVW a3+16(SP), R2
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SWI $0x80
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BCC ok1
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MOVW $-1, R1
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MOVW R1, r1+20(SP) // r1
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MOVW $0, R2
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MOVW R2, r2+24(SP) // r2
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MOVW R0, errno+28(SP) // errno
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RET
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ok1:
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MOVW R0, r1+20(SP) // r1
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MOVW R1, r2+24(SP) // r2
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MOVW $0, R0
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MOVW R0, errno+28(SP) // errno
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RET
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// func Syscall6(trap uintptr, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr)
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TEXT ·Syscall6(SB),NOSPLIT,$0-40
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BL runtime·entersyscall(SB)
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MOVW syscall+4(SP), R12 // syscall entry
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MOVW a1+8(SP), R0
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MOVW a2+12(SP), R1
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MOVW a3+16(SP), R2
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MOVW a4+20(SP), R3
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MOVW a5+24(SP), R4
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MOVW a6+28(SP), R5
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SWI $0x80
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BCC ok6
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MOVW $-1, R1
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MOVW R1, r1+32(SP) // r1
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MOVW $0, R2
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MOVW R2, r2+36(SP) // r2
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MOVW R0, errno+40(SP) // errno
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BL runtime·exitsyscall(SB)
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RET
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ok6:
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MOVW R0, r1+32(SP) // r1
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MOVW R1, r2+36(SP) // r2
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MOVW $0, R0
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MOVW R0, errno+40(SP) // errno
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BL runtime·exitsyscall(SB)
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RET
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// func RawSyscall6(trap uintptr, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr)
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TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
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MOVW trap+4(SP), R12 // syscall entry
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MOVW a1+8(SP), R0
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MOVW a2+12(SP), R1
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MOVW a3+16(SP), R2
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MOVW a4+20(SP), R3
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MOVW a5+24(SP), R4
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MOVW a6+28(SP), R5
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SWI $0x80
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BCC ok2
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MOVW $-1, R1
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MOVW R1, r1+32(SP) // r1
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MOVW $0, R2
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MOVW R2, r2+36(SP) // r2
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MOVW R0, errno+40(SP) // errno
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RET
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ok2:
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MOVW R0, r1+32(SP) // r1
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MOVW R1, r2+36(SP) // r2
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MOVW $0, R0
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MOVW R0, errno+40(SP) // errno
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RET
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// Actually Syscall7.
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TEXT ·Syscall9(SB),NOSPLIT,$0-52
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BL runtime·entersyscall(SB)
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MOVW syscall+4(SP), R12 // syscall entry
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MOVW a1+8(SP), R0
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MOVW a2+12(SP), R1
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MOVW a3+16(SP), R2
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MOVW a4+20(SP), R3
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MOVW a5+24(SP), R4
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MOVW a6+28(SP), R5
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MOVW a7+32(SP), R6
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SWI $0x80
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BCC ok9
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MOVW $-1, R1
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MOVW R1, r1+44(SP) // r1
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MOVW $0, R2
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MOVW R2, r2+48(SP) // r2
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MOVW R0, errno+52(SP) // errno
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BL runtime·exitsyscall(SB)
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RET
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ok9:
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MOVW R0, r1+44(SP) // r1
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MOVW R1, r2+48(SP) // r2
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MOVW $0, R0
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MOVW R0, errno+52(SP) // errno
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BL runtime·exitsyscall(SB)
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RET
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