mirror of
https://github.com/rwinkhart/sys.git
synced 2026-09-04 08:07:19 -04:00
go.sys: copy files from syscall package to go.sys/{plan9,windows,unix}
This CL copies to each package of go.sys the files from syscall it will need.
Different directories have different files, but these:
mkall.sh
str.go
syscall.go
mksyscall.pl
race.go
race0.go
syscall_test.go
are copied to all three.
No changes yet, these are just copies. They are not ready to use yet:
package names are wrong, for starters. But this clean copy will make
it easier to follow the changes as the packages are enabled.
LGTM=rsc
R=golang-codereviews, rsc
CC=golang-codereviews
https://golang.org/cl/126960043
This commit is contained in:
@@ -0,0 +1,142 @@
|
||||
// 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.
|
||||
|
||||
// TODO(rsc): Rewrite all nn(SP) references into name+(nn-8)(FP)
|
||||
// so that go vet can check that they are correct.
|
||||
|
||||
#include "../../cmd/ld/textflag.h"
|
||||
|
||||
//
|
||||
// System call support for 386, OpenBSD
|
||||
//
|
||||
|
||||
// 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);
|
||||
// Trap # in AX, args on stack above caller pc.
|
||||
|
||||
TEXT ·Syscall(SB),NOSPLIT,$0-28
|
||||
CALL runtime·entersyscall(SB)
|
||||
MOVL 4(SP), AX // syscall entry
|
||||
// slide args down on top of system call number
|
||||
LEAL 8(SP), SI
|
||||
LEAL 4(SP), DI
|
||||
CLD
|
||||
MOVSL
|
||||
MOVSL
|
||||
MOVSL
|
||||
INT $0x80
|
||||
JAE ok
|
||||
MOVL $-1, 20(SP) // r1
|
||||
MOVL $-1, 24(SP) // r2
|
||||
MOVL AX, 28(SP) // errno
|
||||
CALL runtime·exitsyscall(SB)
|
||||
RET
|
||||
ok:
|
||||
MOVL AX, 20(SP) // r1
|
||||
MOVL DX, 24(SP) // r2
|
||||
MOVL $0, 28(SP) // errno
|
||||
CALL runtime·exitsyscall(SB)
|
||||
RET
|
||||
|
||||
TEXT ·Syscall6(SB),NOSPLIT,$0-40
|
||||
CALL runtime·entersyscall(SB)
|
||||
MOVL 4(SP), AX // syscall entry
|
||||
// slide args down on top of system call number
|
||||
LEAL 8(SP), SI
|
||||
LEAL 4(SP), DI
|
||||
CLD
|
||||
MOVSL
|
||||
MOVSL
|
||||
MOVSL
|
||||
MOVSL
|
||||
MOVSL
|
||||
MOVSL
|
||||
INT $0x80
|
||||
JAE ok6
|
||||
MOVL $-1, 32(SP) // r1
|
||||
MOVL $-1, 36(SP) // r2
|
||||
MOVL AX, 40(SP) // errno
|
||||
CALL runtime·exitsyscall(SB)
|
||||
RET
|
||||
ok6:
|
||||
MOVL AX, 32(SP) // r1
|
||||
MOVL DX, 36(SP) // r2
|
||||
MOVL $0, 40(SP) // errno
|
||||
CALL runtime·exitsyscall(SB)
|
||||
RET
|
||||
|
||||
TEXT ·Syscall9(SB),NOSPLIT,$0-52
|
||||
CALL runtime·entersyscall(SB)
|
||||
MOVL 4(SP), AX // syscall entry
|
||||
// slide args down on top of system call number
|
||||
LEAL 8(SP), SI
|
||||
LEAL 4(SP), DI
|
||||
CLD
|
||||
MOVSL
|
||||
MOVSL
|
||||
MOVSL
|
||||
MOVSL
|
||||
MOVSL
|
||||
MOVSL
|
||||
MOVSL
|
||||
MOVSL
|
||||
MOVSL
|
||||
INT $0x80
|
||||
JAE ok9
|
||||
MOVL $-1, 44(SP) // r1
|
||||
MOVL $-1, 48(SP) // r2
|
||||
MOVL AX, 52(SP) // errno
|
||||
CALL runtime·exitsyscall(SB)
|
||||
RET
|
||||
ok9:
|
||||
MOVL AX, 44(SP) // r1
|
||||
MOVL DX, 48(SP) // r2
|
||||
MOVL $0, 52(SP) // errno
|
||||
CALL runtime·exitsyscall(SB)
|
||||
RET
|
||||
|
||||
TEXT ·RawSyscall(SB),NOSPLIT,$0-28
|
||||
MOVL 4(SP), AX // syscall entry
|
||||
// slide args down on top of system call number
|
||||
LEAL 8(SP), SI
|
||||
LEAL 4(SP), DI
|
||||
CLD
|
||||
MOVSL
|
||||
MOVSL
|
||||
MOVSL
|
||||
INT $0x80
|
||||
JAE ok1
|
||||
MOVL $-1, 20(SP) // r1
|
||||
MOVL $-1, 24(SP) // r2
|
||||
MOVL AX, 28(SP) // errno
|
||||
RET
|
||||
ok1:
|
||||
MOVL AX, 20(SP) // r1
|
||||
MOVL DX, 24(SP) // r2
|
||||
MOVL $0, 28(SP) // errno
|
||||
RET
|
||||
|
||||
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
|
||||
MOVL 4(SP), AX // syscall entry
|
||||
// slide args down on top of system call number
|
||||
LEAL 8(SP), SI
|
||||
LEAL 4(SP), DI
|
||||
CLD
|
||||
MOVSL
|
||||
MOVSL
|
||||
MOVSL
|
||||
MOVSL
|
||||
MOVSL
|
||||
MOVSL
|
||||
INT $0x80
|
||||
JAE ok2
|
||||
MOVL $-1, 32(SP) // r1
|
||||
MOVL $-1, 36(SP) // r2
|
||||
MOVL AX, 40(SP) // errno
|
||||
RET
|
||||
ok2:
|
||||
MOVL AX, 32(SP) // r1
|
||||
MOVL DX, 36(SP) // r2
|
||||
MOVL $0, 40(SP) // errno
|
||||
RET
|
||||
Reference in New Issue
Block a user