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2003-08-15  Ulrich Drepper  <drepper@redhat.com>

	* io/Versions [GLIBC_2.3.3]: Add posix_fadvise64.
	* io/fcntl.h (posix_fadvise64): Change type of third parameter to
	off_t.
	* sysdeps/unix/sysv/linux/posix_fadvise.c: Adjust definition.
	* sysdeps/unix/make-syscalls.sh: Recognize V prefix to the parameter
	description indicating the error value is returned, not -1.
	* sysdeps/unix/sysv/linux/Makefile [subdir=io] (subdir_routines): Add
	posix_fadvise64_64.
	* sysdeps/unix/sysv/linux/kernel-features.h: Add definition of
	__ASSUME_FADVISE64_64_SYSCALL.
	* sysdeps/unix/sysv/linux/syscalls.list: Don't define madvise and
	posix_madvise in one file.  Have posix_madvise defined with error
	value returned.
	Define posix_fadvise64_64 entry.  Add version info to posix_fadvise64
	entry.
	* sysdeps/unix/sysv/linux/alpha/syscalls.list: Define
	posix_fadvise64_64 entry.  Add version info to posix_fadvise64 entry.
	* sysdeps/unix/sysv/linux/ia64/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/i386/posix_fadvise.S: New file.
	* sysdeps/unix/sysv/linux/i386/sysdep.h: Define PSEUDO_ERRVAL,
	PSEUDO_END_ERRVAL, and ret_ERRVAL.
	* sysdeps/unix/sysv/linux/ia64/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/sysdep.h: Likewise.

	* posix/Makefile (routines): Add posix_madvise.
	* sysdeps/generic/madvise.c: Don't define posix_madvise.
	* sysdeps/generic/posix_madvise.c: New file.
	* sysdeps/unix/sysv/aix/posix_madvise.c: New file.
This commit is contained in:
Ulrich Drepper 2003-08-16 06:21:46 +00:00
parent 20d9b98f8a
commit bfef926466
19 changed files with 254 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
ChangeLog
View File

@ -1,3 +1,35 @@
2003-08-15 Ulrich Drepper <drepper@redhat.com>
* io/Versions [GLIBC_2.3.3]: Add posix_fadvise64.
* io/fcntl.h (posix_fadvise64): Change type of third parameter to
off_t.
* sysdeps/unix/sysv/linux/posix_fadvise.c: Adjust definition.
* sysdeps/unix/make-syscalls.sh: Recognize V prefix to the parameter
description indicating the error value is returned, not -1.
* sysdeps/unix/sysv/linux/Makefile [subdir=io] (subdir_routines): Add
posix_fadvise64_64.
* sysdeps/unix/sysv/linux/kernel-features.h: Add definition of
__ASSUME_FADVISE64_64_SYSCALL.
* sysdeps/unix/sysv/linux/syscalls.list: Don't define madvise and
posix_madvise in one file. Have posix_madvise defined with error
value returned.
Define posix_fadvise64_64 entry. Add version info to posix_fadvise64
entry.
* sysdeps/unix/sysv/linux/alpha/syscalls.list: Define
posix_fadvise64_64 entry. Add version info to posix_fadvise64 entry.
* sysdeps/unix/sysv/linux/ia64/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/x86_64/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/i386/posix_fadvise.S: New file.
* sysdeps/unix/sysv/linux/i386/sysdep.h: Define PSEUDO_ERRVAL,
PSEUDO_END_ERRVAL, and ret_ERRVAL.
* sysdeps/unix/sysv/linux/ia64/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/x86_64/sysdep.h: Likewise.
* posix/Makefile (routines): Add posix_madvise.
* sysdeps/generic/madvise.c: Don't define posix_madvise.
* sysdeps/generic/posix_madvise.c: New file.
* sysdeps/unix/sysv/aix/posix_madvise.c: New file.
2003-08-15 Jakub Jelinek <jakub@redhat.com>
* assert/assert.h (assert_perror): Use __builtin_expect for gcc >=

3
io/Versions
View File

@ -93,6 +93,9 @@ libc {
# l*
lchmod;
}
GLIBC_2.3.3 {
posix_fadvise64;
}
GLIBC_PRIVATE {
# functions which have an additional interface since they are
# cancelable.

6
io/fcntl.h
View File

@ -134,19 +134,19 @@ extern int lockf64 (int __fd, int __cmd, __off64_t __len) __THROW;
/* Advice the system about the expected behaviour of the application with
respect to the file associated with FD. */
# ifndef __USE_FILE_OFFSET64
extern int posix_fadvise (int __fd, __off_t __offset, size_t __len,
extern int posix_fadvise (int __fd, __off_t __offset, off_t __len,
int __advise) __THROW;
# else
# ifdef __REDIRECT
extern int __REDIRECT (posix_fadvise, (int __fd, __off64_t __offset,
size_t __len, int __advise) __THROW,
off64_t __len, int __advise) __THROW,
posix_fadvise64);
# else
# define posix_fadvise posix_fadvise64
# endif
# endif
# ifdef __USE_LARGEFILE64
extern int posix_fadvise64 (int __fd, __off64_t __offset, size_t __len,
extern int posix_fadvise64 (int __fd, __off64_t __offset, off64_t __len,
int __advise) __THROW;
# endif

3
posix/Makefile
View File

@ -63,7 +63,8 @@ routines := \
spawnattr_getflags spawnattr_setflags \
spawnattr_getpgroup spawnattr_setpgroup spawn spawnp spawni \
spawnattr_getsigmask spawnattr_getschedpolicy spawnattr_getschedparam \
spawnattr_setsigmask spawnattr_setschedpolicy spawnattr_setschedparam
spawnattr_setsigmask spawnattr_setschedpolicy spawnattr_setschedparam \
posix_madvise
include ../Makeconfig

3
sysdeps/generic/madvise.c
View File

@ -24,11 +24,10 @@
for the region starting at ADDR and extending LEN bytes. */
int
posix_madvise (__ptr_t addr, size_t len, int advice)
madvise (__ptr_t addr, size_t len, int advice)
{
__set_errno (ENOSYS);
return -1;
}
weak_alias (posix_madvise, madvise)
stub_warning (madvise)
#include <stub-tag.h>

32
sysdeps/generic/posix_madvise.c Normal file
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@ -0,0 +1,32 @@
/* Copyright (C) 1994, 1995, 1996, 1997, 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <sys/types.h>
#include <sys/mman.h>
#include <errno.h>
/* Advise the system about particular usage patterns the program follows
for the region starting at ADDR and extending LEN bytes. */
int
posix_madvise (__ptr_t addr, size_t len, int advice)
{
return ENOSYS;
}
stub_warning (posix_madvise)
#include <stub-tag.h>

1
sysdeps/unix/make-syscalls.sh
View File

@ -88,6 +88,7 @@ while read file srcfile caller syscall args strong weak; do
case $args in
C*) cancellable=-cancel; args=`echo $args | sed 's/C:\?//'`;;
E*) noerrno=_NOERRNO; args=`echo $args | sed 's/E:\?//'`;;
V*) noerrno=_ERRVAL; args=`echo $args | sed 's/V:\?//'`;;
esac
# Derive the number of arguments from the argument signature

8
sysdeps/unix/sysv/aix/posix_madvise.c Normal file
View File

@ -0,0 +1,8 @@
#include <errno.h>
#include <sys/mman.h>
int
posix_madvise (void *addr, size_t len, int advise)
{
return madvise (addr, len, advise) ? errno : 0;
}

2
sysdeps/unix/sysv/linux/Makefile
View File

@ -135,7 +135,7 @@ CFLAGS-ypclnt.c = -DUSE_BINDINGDIR=1
endif
ifeq ($(subdir),io)
sysdep_routines += xstatconv
sysdep_routines += xstatconv posix_fadvise64_64
endif
ifeq ($(subdir),elf)

3
sysdeps/unix/sysv/linux/alpha/syscalls.list
View File

@ -21,7 +21,8 @@ getpriority - getpriority i:ii __getpriority getpriority
mmap - mmap b:aniiii __mmap mmap __mmap64 mmap64
llseek EXTRA lseek C:3 __libc_lseek __lseek lseek __libc_lseek64 __llseek llseek __lseek64 lseek64
lseek llseek -
posix_fadvise64 - fadvise64 4 posix_fadvise64 posix_fadvise
posix_fadvise64 - fadvise64 4 posix_fadvise64 posix_fadvise@GLIBC_2.2
posix_fadvise64_64 - fadvise64 4 posix_fadvise64 posix_fadvise@GLIBC_2.3.3
pread - pread64 C:4 __libc_pread __libc_pread64 __pread pread __pread64 pread64
pwrite - pwrite64 C:4 __libc_pwrite __libc_pwrite64 __pwrite pwrite __pwrite64 pwrite64
fstatfs - fstatfs i:ip __fstatfs fstatfs __fstatfs64 fstatfs64

118
sysdeps/unix/sysv/linux/i386/posix_fadvise64_64.S Normal file
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@ -0,0 +1,118 @@
/* Copyright (C) 1995,96,97,98,99,2000,2002,2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <sysdep.h>
#include <bp-sym.h>
#include <bp-asm.h>
#include "kernel-features.h"
#define EINVAL 22
#define ENOSYS 38
#define EOVERFLOW 75
#define SVRSP 16 /* saved register space */
#define PARMS LINKAGE+SVRSP /* space for 4 saved regs */
#define FD PARMS
#define OFFLO FD+4
#define OFFHI OFFLO+4
#define LENLO OFFHI+4
#define LENHI LENLO+4
#define FLAGS LENHI+4
.text
ENTRY (BP_SYM (__posix_fadvise64_l64))
#ifdef __NR_fadvise64_64
/* Save registers. */
pushl %ebp
pushl %ebx
pushl %esi
pushl %edi
movl FD(%esp), %ebx
movl OFFLO(%esp), %ecx
movl OFFHI(%esp), %edx
movl LENLO(%esp), %esi
movl LENHI(%esp), %edi
movl FLAGS(%esp), %ebp
movl $SYS_ify(fadvise64_64), %eax
ENTER_KERNEL
/* Restore registers. */
popl %edi
popl %esi
popl %ebx
popl %ebp
#ifndef __ASSUME_FADVISE64_64_SYSCALL
cmpl $-ENOSYS, %eax
je 1f
#endif
/* The function returns zero, or the error number. So all we
have to do is negate the value passed back from the kernel. */
/* If 0 > %eax > -4096 there was an error. */
negl %eax
/* Successful; return the syscall's value. */
ret
#endif
#if defined __NR_fadvise64 \
&& (!defined __ASSUME_FADVISE64_64_SYSCALL || !defined __NR_fadvise64_64)
1: /* Save registers. */
pushl %ebx
pushl %esi
pushl %edi
/* Overflow check. */
cmpl $0, LENHI(%esp)
jne L(overflow)
movl FD(%esp), %ebx
movl OFFLO(%esp), %ecx
movl OFFHI(%esp), %edx
movl LENLO(%esp), %esi
movl FLAGS(%esp), %edi
movl $SYS_ify(fadvise64_64), %eax
ENTER_KERNEL
/* Restore registers. */
popl %edi
popl %esi
popl %ebx
/* If 0 > %eax > -4096 there was an error. */
negl %eax
/* Successful; return the syscall's value. */
ret
L(overflow):
movl $EOVERFLOW, %eax
ret
#elif
movl $ENOSYS, %eax
ret
#endif
PSEUDO_END_NOERRNO (BP_SYM (__posix_fadvise64_l64))

14
sysdeps/unix/sysv/linux/i386/sysdep.h
View File

@ -90,6 +90,20 @@
#define ret_NOERRNO ret
/* The function has to return the error code. */
#undef PSEUDO_ERRVAL
#define PSEUDO_ERRVAL(name, syscall_name, args) \
.text; \
ENTRY (name) \
DO_CALL (syscall_name, args); \
negl %eax
#undef PSEUDO_END_ERRVAL
#define PSEUDO_END_ERRVAL(name) \
END (name)
#define ret_ERRVAL ret
#ifndef PIC
# define SYSCALL_ERROR_HANDLER /* Nothing here; code in sysdep.S is used. */
#else

3
sysdeps/unix/sysv/linux/ia64/syscalls.list
View File

@ -5,7 +5,8 @@ umount2 - umount 2 __umount2 umount2
# Whee! 64-bit systems naturally implement llseek.
llseek EXTRA lseek C:3 __libc_lseek __lseek lseek __libc_lseek64 __llseek llseek __lseek64 lseek64
lseek llseek -
posix_fadvise64 - fadvise64 4 posix_fadvise64 posix_fadvise
posix_fadvise64 - fadvise64 4 posix_fadvise64 posix_fadvise@GLIBC_2.2
posix_fadvise64_64 - fadvise64 4 posix_fadvise64 posix_fadvise@GLIBC_2.3.3
pread - pread C:4 __libc_pread __libc_pread64 __pread pread __pread64 pread64
pwrite - pwrite C:4 __libc_pwrite __libc_pwrite64 __pwrite pwrite __pwrite64 pwrite64
fstatfs - fstatfs i:ip __fstatfs fstatfs fstatfs64 __fstatfs64

11
sysdeps/unix/sysv/linux/ia64/sysdep.h
View File

@ -110,6 +110,17 @@
#undef PSEUDO_END_NOERRNO
#define PSEUDO_END_NOERRNO(name) .endp C_SYMBOL_NAME(name);
#undef PSEUDO_ERRVAL
#define PSEUDO_ERRVAL(name, syscall_name, args) \
ENTRY(name) \
DO_CALL (SYS_ify(syscall_name)); \
cmp.eq p6,p0=-1,r10; \
(p6) mov r10=r8;
#undef PSEUDO_END_ERRVAL
#define PSEUDO_END_ERRVAL(name) .endp C_SYMBOL_NAME(name);
#undef END
#define END(name) \
.size C_SYMBOL_NAME(name), . - C_SYMBOL_NAME(name) ; \

6
sysdeps/unix/sysv/linux/kernel-features.h
View File

@ -367,3 +367,9 @@
#if __LINUX_KERNEL_VERSION >= 132609
# define __ASSUME_CLONE_STOPPED 1
#endif
/* The fixed version of the posix_fadvise64 syscall appeared in
2.6.0-test3. At least for x86. */
#if __LINUX_KERNEL_VERSION >= 132609 && defined __i386__
# define __ASSUME_FADVISE64_64_SYSCALL 1
#endif

2
sysdeps/unix/sysv/linux/posix_fadvise.c
View File

@ -24,7 +24,7 @@
respect to the file associated with FD. */
int
posix_fadvise (int fd, __off_t offset, size_t len, int advise)
posix_fadvise (int fd, off_t offset, off_t len, int advise)
{
#ifdef __NR_fadvise64
return INLINE_SYSCALL (fadvise64, 5, fd,

6
sysdeps/unix/sysv/linux/syscalls.list
View File

@ -28,7 +28,8 @@ ioperm - ioperm i:iii ioperm
iopl - iopl i:i iopl
klogctl EXTRA syslog i:isi klogctl
lchown - lchown i:sii __lchown lchown
madvise - madvise i:pii posix_madvise madvise
posix_madvise - madvise Vi:pii posix_madvise
madvise - madvise i:pii madvise
mincore - mincore i:anV mincore
mlock - mlock i:bn mlock
mlockall - mlockall i:i mlockall
@ -43,7 +44,8 @@ pause - pause Ci: __libc_pause pause
personality init-first personality i:i __personality personality
pipe - pipe i:f __pipe pipe
pivot_root EXTRA pivot_root i:ss pivot_root
posix_fadvise64 - fadvise64 i:iiiii posix_fadvise64
posix_fadvise64 - fadvise64 Vi:iiiii __posix_fadvise64_l32 posix_fadvise64@GLIBC_2.2
posix_fadvise64_64 - fadvise64_64 Vi:iiiiii __posix_fadvise64_l64 posix_fadvise64@GLIBC_2.3.3
prctl EXTRA prctl i:iiiii __prctl prctl
putpmsg - putpmsg i:ippii putpmsg
query_module EXTRA query_module i:sipip query_module

2
sysdeps/unix/sysv/linux/x86_64/syscalls.list
View File

@ -4,6 +4,8 @@ arch_prctl EXTRA arch_prctl i:ii __arch_prctl arch_prctl
mmap - mmap b:aniiii __mmap mmap __mmap64 mmap64
modify_ldt EXTRA modify_ldt i:ipi __modify_ldt modify_ldt
llseek EXTRA lseek Ci:iii __libc_lseek64 __llseek llseek __lseek64 lseek64
posix_fadvise64 - fadvise64 i:iiii posix_fadvise64 posix_fadvise@GLIBC_2.2.5
posix_fadvise64_64 - fadvise64_64 i:iiii posix_fadvise64 posix_fadvise@GLIBC_2.3.3
pread - pread Ci:ibni __libc_pread __libc_pread64 __pread pread __pread64 pread64
pwrite - pwrite Ci:ibni __libc_pwrite __libc_pwrite64 __pwrite pwrite __pwrite64 pwrite64
fstatfs - fstatfs i:ip __fstatfs fstatfs __fstatfs64 fstatfs64

11
sysdeps/unix/sysv/linux/x86_64/sysdep.h
View File

@ -98,6 +98,17 @@
#define PSEUDO_END_NOERRNO(name) \
END (name)
#undef PSEUDO_ERRVAL
#define PSEUDO_ERRVAL(name, syscall_name, args) \
.text; \
ENTRY (name) \
DO_CALL (syscall_name, args); \
negl %rax
#undef PSEUDO_END_ERRVAL
#define PSEUDO_END_ERRVAL(name) \
END (name)
#define ret_NOERRNO ret
#ifndef PIC