mirror of
https://github.com/golang/go
synced 2024-11-07 08:46:19 -07:00
b8ac64a581
Don't worry, this patch just remove trailing whitespace from assembly files, and does not touch any logical changes. Change-Id: Ia724ac0b1abf8bc1e41454bdc79289ef317c165d Reviewed-on: https://go-review.googlesource.com/c/113595 Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
179 lines
3.1 KiB
ArmAsm
179 lines
3.1 KiB
ArmAsm
// Copyright 2009 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 386, Plan 9
|
|
//
|
|
|
|
//func Syscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err string)
|
|
//func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err string)
|
|
//func RawSyscall(trap, a1, a2, a3 uintptr) (r1, r2, err uintptr)
|
|
//func RawSyscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr)
|
|
|
|
#define SYS_ERRSTR 41 /* from zsysnum_plan9.go */
|
|
|
|
// Trap # in AX, args on stack above caller pc.
|
|
TEXT ·Syscall(SB),NOSPLIT,$148-32
|
|
NO_LOCAL_POINTERS
|
|
CALL runtime·entersyscall(SB)
|
|
MOVL trap+0(FP), AX // syscall entry
|
|
// copy args down
|
|
LEAL a1+4(FP), SI
|
|
LEAL sysargs-144(SP), DI
|
|
CLD
|
|
MOVSL
|
|
MOVSL
|
|
MOVSL
|
|
INT $64
|
|
MOVL AX, r1+16(FP)
|
|
MOVL $0, r2+20(FP)
|
|
CMPL AX, $-1
|
|
JNE ok3
|
|
|
|
LEAL errbuf-128(SP), AX
|
|
MOVL AX, sysargs-144(SP)
|
|
MOVL $128, sysargs1-140(SP)
|
|
MOVL $SYS_ERRSTR, AX
|
|
INT $64
|
|
CALL runtime·exitsyscall(SB)
|
|
MOVL sysargs-144(SP), AX
|
|
MOVL AX, errbuf-148(SP)
|
|
CALL runtime·gostring(SB)
|
|
LEAL str-144(SP), SI
|
|
JMP copyresult3
|
|
|
|
ok3:
|
|
CALL runtime·exitsyscall(SB)
|
|
LEAL ·emptystring(SB), SI
|
|
|
|
copyresult3:
|
|
LEAL err+24(FP), DI
|
|
|
|
CLD
|
|
MOVSL
|
|
MOVSL
|
|
|
|
RET
|
|
|
|
TEXT ·Syscall6(SB),NOSPLIT,$148-44
|
|
NO_LOCAL_POINTERS
|
|
CALL runtime·entersyscall(SB)
|
|
MOVL trap+0(FP), AX // syscall entry
|
|
// copy args down
|
|
LEAL a1+4(FP), SI
|
|
LEAL sysargs-144(SP), DI
|
|
CLD
|
|
MOVSL
|
|
MOVSL
|
|
MOVSL
|
|
MOVSL
|
|
MOVSL
|
|
MOVSL
|
|
INT $64
|
|
MOVL AX, r1+28(FP)
|
|
MOVL $0, r2+32(FP)
|
|
CMPL AX, $-1
|
|
JNE ok4
|
|
|
|
LEAL errbuf-128(SP), AX
|
|
MOVL AX, sysargs-144(SP)
|
|
MOVL $128, sysargs1-140(SP)
|
|
MOVL $SYS_ERRSTR, AX
|
|
INT $64
|
|
CALL runtime·exitsyscall(SB)
|
|
MOVL sysargs-144(SP), AX
|
|
MOVL AX, errbuf-148(SP)
|
|
CALL runtime·gostring(SB)
|
|
LEAL str-144(SP), SI
|
|
JMP copyresult4
|
|
|
|
ok4:
|
|
CALL runtime·exitsyscall(SB)
|
|
LEAL ·emptystring(SB), SI
|
|
|
|
copyresult4:
|
|
LEAL err+36(FP), DI
|
|
|
|
CLD
|
|
MOVSL
|
|
MOVSL
|
|
|
|
RET
|
|
|
|
TEXT ·RawSyscall(SB),NOSPLIT,$0-28
|
|
MOVL trap+0(FP), AX // syscall entry
|
|
// slide args down on top of system call number
|
|
LEAL a1+4(FP), SI
|
|
LEAL trap+0(FP), DI
|
|
CLD
|
|
MOVSL
|
|
MOVSL
|
|
MOVSL
|
|
INT $64
|
|
MOVL AX, r1+16(FP)
|
|
MOVL AX, r2+20(FP)
|
|
MOVL AX, err+24(FP)
|
|
RET
|
|
|
|
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
|
|
MOVL trap+0(FP), AX // syscall entry
|
|
// slide args down on top of system call number
|
|
LEAL a1+4(FP), SI
|
|
LEAL trap+0(FP), DI
|
|
CLD
|
|
MOVSL
|
|
MOVSL
|
|
MOVSL
|
|
MOVSL
|
|
MOVSL
|
|
MOVSL
|
|
INT $64
|
|
MOVL AX, r1+28(FP)
|
|
MOVL AX, r2+32(FP)
|
|
MOVL AX, err+36(FP)
|
|
RET
|
|
|
|
#define SYS_SEEK 39 /* from zsysnum_plan9.go */
|
|
|
|
//func seek(placeholder uintptr, fd int, offset int64, whence int) (newoffset int64, err string)
|
|
TEXT ·seek(SB),NOSPLIT,$24-36
|
|
NO_LOCAL_POINTERS
|
|
LEAL newoffset+20(FP), AX
|
|
MOVL AX, placeholder+0(FP)
|
|
|
|
// copy args down
|
|
LEAL placeholder+0(FP), SI
|
|
LEAL sysargs-20(SP), DI
|
|
CLD
|
|
MOVSL
|
|
MOVSL
|
|
MOVSL
|
|
MOVSL
|
|
MOVSL
|
|
MOVL $SYS_SEEK, AX // syscall entry
|
|
INT $64
|
|
|
|
CMPL AX, $-1
|
|
JNE ok6
|
|
MOVL AX, newoffset_lo+20(FP)
|
|
MOVL AX, newoffset_hi+24(FP)
|
|
|
|
CALL syscall·errstr(SB)
|
|
MOVL SP, SI
|
|
JMP copyresult6
|
|
|
|
ok6:
|
|
LEAL ·emptystring(SB), SI
|
|
|
|
copyresult6:
|
|
LEAL err+28(FP), DI
|
|
|
|
CLD
|
|
MOVSL
|
|
MOVSL
|
|
RET
|