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mirror of https://github.com/golang/go synced 2024-11-26 09:38:10 -07:00

add fstat, stat

R=ken
OCL=13497
CL=13497
This commit is contained in:
Rob Pike 2008-07-26 16:22:14 -07:00
parent 20a02661d9
commit eccea1980d
6 changed files with 159 additions and 100 deletions

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@ -13,6 +13,7 @@ PKG=syscall.a
OFILES=\
syscall.$O \
errstr_$(GOOS).$O \
stat_$(GOARCH)_$(GOOS).$O \
syscall_$(GOARCH)_$(GOOS).$O \

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@ -0,0 +1,49 @@
// 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.
package syscall
func stat(*byte, *Stat) (ret int64, errno int64);
func fstat(int64, *Stat) (ret int64, errno int64);
export Stat
export stat, fstat
// Stat and relatives for Linux
type dev_t uint32;
type ino_t uint64;
type mode_t uint16;
type nlink_t uint16;
type uid_t uint32;
type gid_t uint32;
type off_t int64;
type blksize_t int64;
type blkcnt_t int64;
type time_t int64;
type Timespec struct {
tv_sec time_t;
tv_nsec int64;
}
type Stat struct {
st_dev dev_t; /* ID of device containing file */
st_mode mode_t; /* protection */
st_nlink nlink_t; /* number of hard links */
st_ino ino_t; /* inode number */
st_uid uid_t; /* user ID of owner */
st_gid gid_t; /* group ID of owner */
st_rdev dev_t; /* device ID (if special file) */
st_atime Timespec; /* time of last access */
st_mtime Timespec; /* time of last modification */
st_ctime Timespec; /* time of last status change */
st_birthtimespec Timespec; /* birth time */
st_size off_t; /* total size, in bytes */
st_blocks blkcnt_t; /* number of blocks allocated */
st_blksize blksize_t; /* blocksize for filesystem I/O */
st_flags uint32;
st_gen uint32;
st_qspare[2] int64;
}

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@ -0,0 +1,47 @@
// 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.
package syscall
func stat(*byte, *Stat) (ret int64, errno int64);
func fstat(int64, *Stat) (ret int64, errno int64);
export Stat
export stat, fstat
// Stat and relatives for Linux
type dev_t uint64;
type ino_t uint64;
type mode_t uint32;
type nlink_t uint64;
type uid_t uint32;
type gid_t uint32;
type off_t int64;
type blksize_t int64;
type blkcnt_t int64;
type time_t int64;
type Timespec struct {
tv_sec time_t;
tv_nsec int64;
}
type Stat struct {
st_dev dev_t; /* ID of device containing file */
st_ino ino_t; /* inode number */
st_nlink nlink_t; /* number of hard links */
st_mode mode_t; /* protection */
st_uid uid_t; /* user ID of owner */
st_gid gid_t; /* group ID of owner */
pad0 int32;
st_rdev dev_t; /* device ID (if special file) */
st_size off_t; /* total size, in bytes */
st_blksize blksize_t; /* blocksize for filesystem I/O */
st_blocks blkcnt_t; /* number of blocks allocated */
st_atime Timespec; /* time of last access */
st_mtime Timespec; /* time of last modification */
st_ctime Timespec; /* time of last status change */
}

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@ -4,8 +4,12 @@
package syscall
// for simplicity of addressing in assembler, all integers are 64 bits
// in these calling sequences.
/*
* These calls have signatures that are independent of operating system.
*
* For simplicity of addressing in assembler, all integers are 64 bits
* in these calling sequences.
*/
func open(*byte, int64) (ret int64, errno int64);
func close(int64) (ret int64, errno int64);

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@ -6,13 +6,6 @@
// System calls for AMD64, Darwin
//
//TEXT syscall·exit(SB),1,$-8
// MOVL 8(SP), DI // arg 1 exit status
// MOVL $(0x2000000+1), AX // syscall entry
// SYSCALL
// CALL notok(SB)
// RET
TEXT syscall·open(SB),1,$-8
MOVQ 8(SP), DI
MOVQ 16(SP), SI
@ -67,41 +60,28 @@ TEXT syscall·write(SB),1,$-8
MOVQ $0, 40(SP)
RET
//TEXT fstat(SB),1,$-8
// MOVL 8(SP), DI
// MOVQ 16(SP), SI
// MOVL $(0x2000000+339), AX // syscall entry; really fstat64
// SYSCALL
// RET
//
//TEXT syscall·sigaction(SB),1,$-8
// MOVL 8(SP), DI // arg 1 sig
// MOVQ 16(SP), SI // arg 2 act
// MOVQ 24(SP), DX // arg 3 oact
// MOVQ 24(SP), CX // arg 3 oact
// MOVQ 24(SP), R10 // arg 3 oact
// MOVL $(0x2000000+46), AX // syscall entry
// SYSCALL
// JCC 2(PC)
// CALL notok(SB)
// RET
//
//TEXT sigtramp(SB),1,$24
// MOVL DX,0(SP)
// MOVQ CX,8(SP)
// MOVQ R8,16(SP)
// CALL sighandler(SB)
// RET
//
//TEXT syscall·mmap(SB),1,$-8
// MOVQ 8(SP), DI // arg 1 addr
// MOVL 16(SP), SI // arg 2 len
// MOVL 20(SP), DX // arg 3 prot
// MOVL 24(SP), R10 // arg 4 flags
// MOVL 28(SP), R8 // arg 5 fid
// MOVL 32(SP), R9 // arg 6 offset
// MOVL $(0x2000000+197), AX // syscall entry
// SYSCALL
// JCC 2(PC)
// CALL notok(SB)
// RET
TEXT syscall·stat(SB),1,$-8
MOVQ 8(SP), DI
MOVQ 16(SP), SI
MOVL $(0x2000000+338), AX // syscall entry
SYSCALL
JCC 4(PC)
MOVQ $-1, 24(SP)
MOVQ AX, 32(SP)
RET
MOVQ AX, 24(SP)
MOVQ $0, 32(SP)
RET
TEXT syscall·fstat(SB),1,$-8
MOVQ 8(SP), DI
MOVQ 16(SP), SI
MOVL $(0x2000000+339), AX // syscall entry
SYSCALL
JCC 4(PC)
MOVQ $-1, 24(SP)
MOVQ AX, 32(SP)
RET
MOVQ AX, 24(SP)
MOVQ $0, 32(SP)
RET

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@ -6,12 +6,6 @@
// System calls for AMD64, Linux
//
//TEXT sys·exit(SB),1,$0-8
// MOVL 8(SP), DI
// MOVL $60, AX
// SYSCALL
// RET
TEXT syscall·open(SB),1,$0-16
MOVQ 8(SP), DI
MOVQ 16(SP), SI
@ -42,13 +36,6 @@ TEXT syscall·close(SB),1,$0-16
MOVQ $0, 24(SP)
RET
//TEXT fstat(SB),1,$0-16
// MOVL 8(SP), DI
// MOVQ 16(SP), SI
// MOVL $5, AX // syscall entry
// SYSCALL
// RET
TEXT syscall·read(SB),1,$0-16
MOVL 8(SP), DI
MOVQ 16(SP), SI
@ -81,43 +68,34 @@ TEXT syscall·write(SB),1,$0-16
MOVQ $0, 40(SP)
RET
//TEXT sys·rt_sigaction(SB),1,$0-32
// MOVL 8(SP), DI
// MOVQ 16(SP), SI
// MOVQ 24(SP), DX
// MOVQ 32(SP), CX
// MOVL CX, R10
// MOVL $13, AX // syscall entry
// SYSCALL
// RET
//
//TEXT sigtramp(SB),1,$24-16
// MOVQ DI,0(SP)
// MOVQ SI,8(SP)
// MOVQ DX,16(SP)
// CALL sighandler(SB)
// RET
//
//TEXT sys·mmap(SB),1,$0-32
// MOVQ 8(SP), DI
// MOVL 16(SP), SI
// MOVL 20(SP), DX
// MOVL 24(SP), CX
// MOVL 28(SP), R8
// MOVL 32(SP), R9
//
///* flags arg for ANON is 1000 but sb 20 */
// MOVL CX, AX
// ANDL $~0x1000, CX
// ANDL $0x1000, AX
// SHRL $7, AX
// ORL AX, CX
//
// MOVL CX, R10
// MOVL $9, AX // syscall entry
// SYSCALL
// CMPQ AX, $0xfffffffffffff001
// JLS 2(PC)
// CALL notok(SB)
// RET
//
TEXT syscall·stat(SB),1,$0-16
MOVQ 8(SP), DI
MOVQ 16(SP), SI
MOVQ $0, DX
MOVQ $5, AX // syscall entry
SYSCALL
CMPQ AX, $0xfffffffffffff001
JLS 5(PC)
MOVQ $-1, 24(SP)
NEGQ AX
MOVQ AX, 32(SP)
RET
MOVQ AX, 24(SP)
MOVQ $0, 32(SP)
RET
TEXT syscall·fstat(SB),1,$0-16
MOVL 8(SP), DI
MOVQ 16(SP), SI
MOVQ $0, DX
MOVQ $5, AX // syscall entry
SYSCALL
CMPQ AX, $0xfffffffffffff001
JLS 5(PC)
MOVQ $-1, 24(SP)
NEGQ AX
MOVQ AX, 32(SP)
RET
MOVQ AX, 24(SP)
MOVQ $0, 32(SP)
RET