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Consolidate gettimeofday across aarch64/s390/tile

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This patch removes the architecture specific gettimeofday implementation
to use the vDSO symbol and consolidate it on a common Linux one.
Similar to clock_gettime and clock_getres vDSO implementation, each port
that supports gettimeofday through vDSO should just implement INLINE_VSYSCALL
to access the symbol and define HAVE_{GETTIME,GETRES}_VSYSCAL as 1.
This commit is contained in:
Adhemerval Zanella 2015-04-17 11:48:51 -03:00 committed by Adhemerval Zanella
parent 6afb9c0175
commit 97554e4382
11 changed files with 25 additions and 88 deletions
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16
ChangeLog
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@ -1,3 +1,19 @@
2015-05-26 Adhemerval Zanella <adhemerval.zanella@linaro.org>
* sysdeps/unix/sysv/linux/aarch64/gettimeofday.c: Remove file.
* sysdeps/unix/sysv/linux/s390/gettimeofday.c: Likewise.
* sysdeps/unix/sysv/linux/tile/gettimeofday.c: Likewise.
* sysdeps/unix/sysv/linux/aarch64/sysdep.h
(HAVE_GETTIMEOFDAY_VSYSCALL): Define.
* sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h
(HAVE_GETTIMEOFDAY_VSYSCALL): Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h
(HAVE_GETTIMEOFDAY_VSYSCALL): Likewise.
* sysdeps/unix/sysv/linux/tile/sysdep.h
(HAVE_GETTIMEOFDAY_VSYSCALL): Likewise.
* sysdeps/unix/sysv/linux/gettimeofday.c: New file: gettimeofday
using vDSO syscall macro.
2015-05-26 Andriy Rysin <arysin@gmail.com>
[BZ #17293]

3
sysdeps/unix/sysv/linux/aarch64/init-first.c
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@ -18,9 +18,6 @@
#ifdef SHARED
# include <dl-vdso.h>
# undef __gettimeofday
# undef __clock_gettime
# undef __clock_getres
# include <libc-vdso.h>
int (*VDSO_SYMBOL(gettimeofday)) (struct timeval *, void *) attribute_hidden;

1
sysdeps/unix/sysv/linux/aarch64/sysdep.h
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@ -155,6 +155,7 @@
/* List of system calls which are supported as vsyscalls. */
# define HAVE_CLOCK_GETRES_VSYSCALL 1
# define HAVE_CLOCK_GETTIME_VSYSCALL 1
# define HAVE_GETTIMEOFDAY_VSYSCALL 1
/* Define a macro which expands into the inline wrapper code for a system
call. */

10
sysdeps/unix/sysv/linux/aarch64/gettimeofday.c → sysdeps/unix/sysv/linux/gettimeofday.c
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@ -1,4 +1,4 @@
/* Copyright (C) 2005-2015 Free Software Foundation, Inc.
/* Copyright (C) 2015 Free Software Foundation, Inc.
This file is part of the GNU C Library.
@ -21,16 +21,16 @@
#undef __gettimeofday
#define HAVE_VSYSCALL
#ifdef HAVE_GETTIMEOFDAY_VSYSCALL
# define HAVE_VSYSCALL
#endif
#include <sysdep-vdso.h>
/* Get the current time of day and timezone information,
putting it into *tv and *tz. If tz is null, *tz is not filled.
Returns 0 on success, -1 on errors. */
int
__gettimeofday (tv, tz)
struct timeval *tv;
struct timezone *tz;
__gettimeofday (struct timeval *tv, struct timezone *tz)
{
return INLINE_VSYSCALL (gettimeofday, 2, tv, tz);
}

3
sysdeps/unix/sysv/linux/powerpc/init-first.c
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@ -18,9 +18,6 @@
#ifdef SHARED
# include <dl-vdso.h>
# undef __gettimeofday
# undef __clock_gettime
# undef __clock_getres
# include <libc-vdso.h>
int (*VDSO_SYMBOL(gettimeofday)) (struct timeval *, void *)

40
sysdeps/unix/sysv/linux/s390/gettimeofday.c
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@ -1,40 +0,0 @@
/* Copyright (C) 2008-2015 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, see
<http://www.gnu.org/licenses/>. */
#include <sysdep.h>
#include <stddef.h>
#include <sys/time.h>
#include <time.h>
#include <hp-timing.h>
#define HAVE_VSYSCALL
#include <sysdep-vdso.h>
/* Get the current time of day and timezone information,
putting it into *TV and *TZ. If TZ is NULL, *TZ is not filled.
Returns 0 on success, -1 on errors. */
int
__gettimeofday (tv, tz)
struct timeval *tv;
struct timezone *tz;
{
return INLINE_VSYSCALL (gettimeofday, 2, tv, tz);
}
libc_hidden_def (__gettimeofday)
weak_alias (__gettimeofday, gettimeofday)
libc_hidden_weak (gettimeofday)

3
sysdeps/unix/sysv/linux/s390/init-first.c
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@ -18,9 +18,6 @@
#ifdef SHARED
# include <dl-vdso.h>
# undef __gettimeofday
# undef __clock_gettime
# undef __clock_getres
# include <libc-vdso.h>
long int (*VDSO_SYMBOL(gettimeofday)) (struct timeval *, void *)

1
sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h
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@ -281,6 +281,7 @@
/* List of system calls which are supported as vsyscalls. */
#define HAVE_CLOCK_GETRES_VSYSCALL 1
#define HAVE_CLOCK_GETTIME_VSYSCALL 1
#define HAVE_GETTIMEOFDAY_VSYSCALL 1
/* This version is for internal uses when there is no desire
to set errno */

1
sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h
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@ -287,6 +287,7 @@
/* List of system calls which are supported as vsyscalls. */
#define HAVE_CLOCK_GETRES_VSYSCALL 1
#define HAVE_CLOCK_GETTIME_VSYSCALL 1
#define HAVE_GETTIMEOFDAY_VSYSCALL 1
/* This version is for internal uses when there is no desire
to set errno */

34
sysdeps/unix/sysv/linux/tile/gettimeofday.c
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@ -1,34 +0,0 @@
/* Copyright (C) 2012-2015 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, see
<http://www.gnu.org/licenses/>. */
#include <sysdep.h>
#include <stddef.h>
#include <sys/time.h>
#include <time.h>
#define HAVE_VSYSCALL
#include <sysdep-vdso.h>
int
__gettimeofday (struct timeval *tv, struct timezone *tz)
{
return INLINE_VSYSCALL (gettimeofday, 2, tv, tz);
}
libc_hidden_def (__gettimeofday)
weak_alias (__gettimeofday, gettimeofday)
libc_hidden_weak (gettimeofday)

1
sysdeps/unix/sysv/linux/tile/sysdep.h
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@ -212,6 +212,7 @@
/* List of system calls which are supported as vsyscalls. */
#define HAVE_CLOCK_GETTIME_VSYSCALL 1
#define HAVE_GETTIMEOFDAY_VSYSCALL 1
#endif /* __ASSEMBLER__ */