diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/x86_64')
| -rw-r--r-- | sysdeps/unix/sysv/linux/x86_64/Makefile | 4 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/x86_64/bits/libc-vdso.h | 31 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/x86_64/clock_gettime.c | 20 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/x86_64/gettimeofday.c | 41 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/x86_64/init-first.c | 12 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/x86_64/time.c | 44 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/x86_64/timespec_get.c | 10 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/x86_64/x32/init-first.c | 2 |
8 files changed, 15 insertions, 149 deletions
diff --git a/sysdeps/unix/sysv/linux/x86_64/Makefile b/sysdeps/unix/sysv/linux/x86_64/Makefile index d6a9d360d1..9b82155393 100644 --- a/sysdeps/unix/sysv/linux/x86_64/Makefile +++ b/sysdeps/unix/sysv/linux/x86_64/Makefile @@ -13,7 +13,3 @@ endif ifeq ($(subdir),misc) gen-as-const-headers += sigaltstack-offsets.sym endif - -ifeq ($(subdir),elf) -sysdep_routines += dl-vdso -endif diff --git a/sysdeps/unix/sysv/linux/x86_64/bits/libc-vdso.h b/sysdeps/unix/sysv/linux/x86_64/bits/libc-vdso.h deleted file mode 100644 index 03ff875035..0000000000 --- a/sysdeps/unix/sysv/linux/x86_64/bits/libc-vdso.h +++ /dev/null @@ -1,31 +0,0 @@ -/* Resolve function pointers to VDSO functions. - Copyright (C) 2005-2015 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/>. */ - -#ifndef _LIBC_VDSO_H -#define _LIBC_VDSO_H - -#include <time.h> -#include <sys/time.h> - -#ifdef SHARED - -extern long int (*__vdso_clock_gettime) (clockid_t, struct timespec *); - -#endif - -#endif /* _LIBC_VDSO_H */ diff --git a/sysdeps/unix/sysv/linux/x86_64/clock_gettime.c b/sysdeps/unix/sysv/linux/x86_64/clock_gettime.c deleted file mode 100644 index f7121106bc..0000000000 --- a/sysdeps/unix/sysv/linux/x86_64/clock_gettime.c +++ /dev/null @@ -1,20 +0,0 @@ -#include "bits/libc-vdso.h" - -#ifdef SHARED -# define SYSCALL_GETTIME(id, tp) \ - ({ long int (*f) (clockid_t, struct timespec *) = __vdso_clock_gettime; \ - long int v_ret; \ - PTR_DEMANGLE (f); \ - v_ret = f (id, tp); \ - if (INTERNAL_SYSCALL_ERROR_P (v_ret, )) { \ - __set_errno (INTERNAL_SYSCALL_ERRNO (v_ret, )); \ - v_ret = -1; \ - } \ - v_ret; }) -# define INTERNAL_GETTIME(id, tp) \ - ({ long int (*f) (clockid_t, struct timespec *) = __vdso_clock_gettime; \ - PTR_DEMANGLE (f); \ - f (id, tp); }) -#endif - -#include "../clock_gettime.c" diff --git a/sysdeps/unix/sysv/linux/x86_64/gettimeofday.c b/sysdeps/unix/sysv/linux/x86_64/gettimeofday.c index 866d9c1d5f..daa14defb0 100644 --- a/sysdeps/unix/sysv/linux/x86_64/gettimeofday.c +++ b/sysdeps/unix/sysv/linux/x86_64/gettimeofday.c @@ -18,42 +18,9 @@ #include <sys/time.h> #ifdef SHARED - -# include <dl-vdso.h> - +/* If the vDSO is not available we fall back on the old vsyscall. */ # define VSYSCALL_ADDR_vgettimeofday 0xffffffffff600000ul - -void *gettimeofday_ifunc (void) __asm__ ("__gettimeofday"); - -void * -gettimeofday_ifunc (void) -{ - PREPARE_VERSION (linux26, "LINUX_2.6", 61765110); - - /* If the vDSO is not available we fall back on the old vsyscall. */ - return (_dl_vdso_vsym ("__vdso_gettimeofday", &linux26) - ?: (void *) VSYSCALL_ADDR_vgettimeofday); -} -asm (".type __gettimeofday, %gnu_indirect_function"); - -/* This is doing "libc_hidden_def (__gettimeofday)" but the compiler won't - let us do it in C because it doesn't know we're defining __gettimeofday - here in this file. */ -asm (".globl __GI___gettimeofday\n" - "__GI___gettimeofday = __gettimeofday"); - -#else - -# include <sysdep.h> -# include <errno.h> - -int -__gettimeofday (struct timeval *tv, struct timezone *tz) -{ - return INLINE_SYSCALL (gettimeofday, 2, tv, tz); -} -libc_hidden_def (__gettimeofday) - +# define GETTIMEOFAY_FALLBACK (void*)VSYSCALL_ADDR_vgettimeofday #endif -weak_alias (__gettimeofday, gettimeofday) -libc_hidden_weak (gettimeofday) + +#include <sysdeps/unix/sysv/linux/x86/gettimeofday.c> diff --git a/sysdeps/unix/sysv/linux/x86_64/init-first.c b/sysdeps/unix/sysv/linux/x86_64/init-first.c index e3bc712ac6..36f9afc857 100644 --- a/sysdeps/unix/sysv/linux/x86_64/init-first.c +++ b/sysdeps/unix/sysv/linux/x86_64/init-first.c @@ -20,20 +20,20 @@ # include <time.h> # include <sysdep.h> # include <dl-vdso.h> -# include <bits/libc-vdso.h> +# include <libc-vdso.h> long int (*__vdso_clock_gettime) (clockid_t, struct timespec *) __attribute__ ((nocommon)); -strong_alias (__vdso_clock_gettime, __GI___vdso_clock_gettime attribute_hidden) +libc_hidden_proto (__vdso_clock_gettime) +libc_hidden_data_def (__vdso_clock_gettime) long int (*__vdso_getcpu) (unsigned *, unsigned *, void *) attribute_hidden; - extern long int __syscall_clock_gettime (clockid_t, struct timespec *); static inline void -_libc_vdso_platform_setup (void) +__vdso_platform_setup (void) { PREPARE_VERSION (linux26, "LINUX_2.6", 61765110); @@ -41,7 +41,7 @@ _libc_vdso_platform_setup (void) if (p == NULL) p = __syscall_clock_gettime; PTR_MANGLE (p); - __GI___vdso_clock_gettime = p; + __vdso_clock_gettime = p; p = _dl_vdso_vsym ("__vdso_getcpu", &linux26); /* If the vDSO is not available we fall back on the old vsyscall. */ @@ -52,7 +52,7 @@ _libc_vdso_platform_setup (void) __vdso_getcpu = p; } -# define VDSO_SETUP _libc_vdso_platform_setup +# define VDSO_SETUP __vdso_platform_setup #endif #include <csu/init-first.c> diff --git a/sysdeps/unix/sysv/linux/x86_64/time.c b/sysdeps/unix/sysv/linux/x86_64/time.c index c00b5bec0b..6ceb819d82 100644 --- a/sysdeps/unix/sysv/linux/x86_64/time.c +++ b/sysdeps/unix/sysv/linux/x86_64/time.c @@ -16,45 +16,9 @@ <http://www.gnu.org/licenses/>. */ #ifdef SHARED -/* Redefine time so that the compiler won't complain about the type - mismatch with the IFUNC selector in strong_alias, below. */ -#undef time -#define time __redirect_time -#include <time.h> - -#include <dl-vdso.h> - +/* If the vDSO is not available we fall back on the old vsyscall. */ #define VSYSCALL_ADDR_vtime 0xffffffffff600400 - -/* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle - ifunc symbol properly. */ -extern __typeof (__redirect_time) __libc_time; -void *time_ifunc (void) __asm__ ("__libc_time"); - -void * -time_ifunc (void) -{ - PREPARE_VERSION (linux26, "LINUX_2.6", 61765110); - - /* If the vDSO is not available we fall back on the old vsyscall. */ - return _dl_vdso_vsym ("__vdso_time", &linux26) ?: (void *) VSYSCALL_ADDR_vtime; -} -__asm (".type __libc_time, %gnu_indirect_function"); - -#undef time -strong_alias (__libc_time, time) -libc_hidden_ver (__libc_time, time) - -#else - -# include <time.h> -# include <sysdep.h> - -time_t -time (time_t *t) -{ - INTERNAL_SYSCALL_DECL (err); - return INTERNAL_SYSCALL (time, err, 1, t); -} - +#define TIME_FALLBACK (void*)VSYSCALL_ADDR_vtime #endif + +#include <sysdeps/unix/sysv/linux/x86/time.c> diff --git a/sysdeps/unix/sysv/linux/x86_64/timespec_get.c b/sysdeps/unix/sysv/linux/x86_64/timespec_get.c deleted file mode 100644 index cb26068147..0000000000 --- a/sysdeps/unix/sysv/linux/x86_64/timespec_get.c +++ /dev/null @@ -1,10 +0,0 @@ -#include "bits/libc-vdso.h" - -#ifdef SHARED -# define INTERNAL_GETTIME(id, tp) \ - ({ long int (*f) (clockid_t, struct timespec *) = __vdso_clock_gettime; \ - PTR_DEMANGLE (f); \ - f (id, tp); }) -#endif - -#include "../timespec_get.c" diff --git a/sysdeps/unix/sysv/linux/x86_64/x32/init-first.c b/sysdeps/unix/sysv/linux/x86_64/x32/init-first.c index 88369e5ac5..93e0508002 100644 --- a/sysdeps/unix/sysv/linux/x86_64/x32/init-first.c +++ b/sysdeps/unix/sysv/linux/x86_64/x32/init-first.c @@ -18,7 +18,7 @@ #ifdef SHARED # include <dl-vdso.h> -# include <bits/libc-vdso.h> +# include <libc-vdso.h> long int (*__vdso_clock_gettime) (clockid_t, struct timespec *) __attribute__ ((nocommon)); |