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- Add back x86 vDSO support.
- Fix rtkaio build to reference clock_* functions from libc.

Conflicts:
	glibc.spec

Cherry-picked from rawhide.
This commit is contained in:
Carlos O'Donell 2015-02-12 00:19:12 -05:00 committed by Siddhesh Poyarekar
parent de5f208e42
commit 8a3ff05495
3 changed files with 107 additions and 658 deletions
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655
glibc-revert-x86-vdso.patch
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@ -1,655 +0,0 @@
commit ca677d3c3cd0eba7d1f03092517aea553a0e8569
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Fri Jun 27 14:00:18 2014 -0700
Add x86 32 bit vDSO time function support
Linux 3.15 adds support for clock_gettime, gettimeofday, and time vDSO
(commit id 37c975545ec63320789962bf307f000f08fabd48). This patch adds
GLIBC supports to use such symbol when they are avaiable.
Along with x86 vDSO support, this patch cleanup x86_64 code by moving
all common code to x86 common folder. Only init-first.c is different
between implementations.
diff --git a/sysdeps/unix/sysv/linux/i386/gettimeofday.c b/sysdeps/unix/sysv/linux/i386/gettimeofday.c
new file mode 100644
index 0000000..3e00eb4
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/i386/gettimeofday.c
@@ -0,0 +1,39 @@
+/* gettimeofday - get the time. Linux/i386 version.
+ Copyright (C) 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 <sys/time.h>
+
+#ifdef SHARED
+
+# include <dl-vdso.h>
+# include <errno.h>
+
+/* If the vDSO is not available we fall back on the syscall. */
+static int
+__gettimeofday_syscall (struct timeval *tv, struct timezone *tz)
+{
+ return INLINE_SYSCALL (gettimeofday, 2, tv, tz);
+}
+# define GETTIMEOFAY_FALLBACK (void*) (&__gettimeofday_syscall)
+# undef libc_ifunc_hidden_def
+# define libc_ifunc_hidden_def(name) \
+ libc_ifunc_hidden_def1 (__GI_##name, __gettimeofday_syscall)
+
+#endif
+
+#include <sysdeps/unix/sysv/linux/x86/gettimeofday.c>
diff --git a/sysdeps/unix/sysv/linux/i386/init-first.c b/sysdeps/unix/sysv/linux/i386/init-first.c
new file mode 100644
index 0000000..4be65d7
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/i386/init-first.c
@@ -0,0 +1,52 @@
+/* Initialization code run first thing by the ELF startup code. Linux/i386.
+ Copyright (C) 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/>. */
+
+#ifdef SHARED
+# include <time.h>
+# include <sysdep.h>
+# include <dl-vdso.h>
+# include <libc-vdso.h>
+
+long int (*__vdso_clock_gettime) (clockid_t, struct timespec *)
+ __attribute__ ((nocommon));
+libc_hidden_proto (__vdso_clock_gettime)
+libc_hidden_data_def (__vdso_clock_gettime)
+
+static long int
+clock_gettime_syscall (clockid_t id, struct timespec *tp)
+{
+ INTERNAL_SYSCALL_DECL (err);
+ return INTERNAL_SYSCALL (clock_gettime, err, 2, id, tp);
+}
+
+static inline void
+__vdso_platform_setup (void)
+{
+ PREPARE_VERSION_KNOWN (linux26, LINUX_2_6);
+
+ void *p = _dl_vdso_vsym ("__vdso_clock_gettime", &linux26);
+ if (p == NULL)
+ p = clock_gettime_syscall;
+ PTR_MANGLE (p);
+ __vdso_clock_gettime = p;
+}
+
+# define VDSO_SETUP __vdso_platform_setup
+#endif
+
+#include <csu/init-first.c>
diff --git a/sysdeps/unix/sysv/linux/i386/time.c b/sysdeps/unix/sysv/linux/i386/time.c
new file mode 100644
index 0000000..e8a4e59
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/i386/time.c
@@ -0,0 +1,37 @@
+/* time -- Get number of seconds since Epoch. Linux/i386 version.
+ Copyright (C) 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/>. */
+
+#ifdef SHARED
+
+# include <dl-vdso.h>
+# include <errno.h>
+
+/* If the vDSO is not available we fall back on the old vsyscall. */
+static time_t
+__time_syscall (time_t *t)
+{
+ INTERNAL_SYSCALL_DECL (err);
+ return INTERNAL_SYSCALL (time, err, 1, t);
+}
+# define TIME_FALLBACK (void*) &__time_syscall
+# undef libc_ifunc_hidden_def
+# define libc_ifunc_hidden_def(name) \
+ libc_ifunc_hidden_def1 (__GI_##name, __time_syscall)
+#endif
+
+#include <sysdeps/unix/sysv/linux/x86/time.c>
diff --git a/sysdeps/unix/sysv/linux/x86/Makefile b/sysdeps/unix/sysv/linux/x86/Makefile
index 0281f87..d6be472 100644
--- a/sysdeps/unix/sysv/linux/x86/Makefile
+++ b/sysdeps/unix/sysv/linux/x86/Makefile
@@ -19,3 +19,7 @@ libpthread-sysdep_routines += init-arch
libpthread-sysdep_routines += elision-lock elision-unlock elision-timed \
elision-trylock
endif
+
+ifeq ($(subdir),elf)
+sysdep_routines += dl-vdso
+endif
diff --git a/sysdeps/unix/sysv/linux/x86/clock_gettime.c b/sysdeps/unix/sysv/linux/x86/clock_gettime.c
new file mode 100644
index 0000000..98ffb01
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/x86/clock_gettime.c
@@ -0,0 +1,34 @@
+/* Get the current value of a clock. Linux/x86 version.
+ Copyright (C) 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 <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; })
+#endif
+
+#include <sysdeps/unix/sysv/linux/clock_gettime.c>
diff --git a/sysdeps/unix/sysv/linux/x86/gettimeofday.c b/sysdeps/unix/sysv/linux/x86/gettimeofday.c
new file mode 100644
index 0000000..c820fd7
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/x86/gettimeofday.c
@@ -0,0 +1,54 @@
+/* gettimeofday - get the time. Linux/x86 version.
+ Copyright (C) 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 <sys/time.h>
+
+#ifdef SHARED
+
+# include <dl-vdso.h>
+
+void *gettimeofday_ifunc (void) __asm__ ("__gettimeofday");
+
+void *
+gettimeofday_ifunc (void)
+{
+ PREPARE_VERSION_KNOWN (linux26, LINUX_2_6);
+
+ /* If the vDSO is not available we fall back on the old vsyscall. */
+ return (_dl_vdso_vsym ("__vdso_gettimeofday", &linux26)
+ ?: GETTIMEOFAY_FALLBACK);
+}
+asm (".type __gettimeofday, %gnu_indirect_function");
+
+libc_ifunc_hidden_def(__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)
+
+#endif
+weak_alias (__gettimeofday, gettimeofday)
+libc_hidden_weak (gettimeofday)
diff --git a/sysdeps/unix/sysv/linux/x86/libc-vdso.h b/sysdeps/unix/sysv/linux/x86/libc-vdso.h
new file mode 100644
index 0000000..03ff875
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/x86/libc-vdso.h
@@ -0,0 +1,31 @@
+/* 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/time.c b/sysdeps/unix/sysv/linux/x86/time.c
new file mode 100644
index 0000000..1ab9248
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/x86/time.c
@@ -0,0 +1,49 @@
+/* time -- Get number of seconds since Epoch. Linux/x86 version.
+ Copyright (C) 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 <time.h>
+
+#ifdef SHARED
+
+#include <dl-vdso.h>
+
+void *time_ifunc (void) __asm__ ("time");
+
+void *
+time_ifunc (void)
+{
+ PREPARE_VERSION_KNOWN (linux26, LINUX_2_6);
+
+ return _dl_vdso_vsym ("__vdso_time", &linux26) ?: TIME_FALLBACK;
+}
+asm (".type time, %gnu_indirect_function");
+
+libc_ifunc_hidden_def(time)
+
+#else
+
+# include <sysdep.h>
+
+time_t
+time (time_t *t)
+{
+ INTERNAL_SYSCALL_DECL (err);
+ return INTERNAL_SYSCALL (time, err, 1, t);
+}
+
+#endif
diff --git a/sysdeps/unix/sysv/linux/x86/timespec_get.c b/sysdeps/unix/sysv/linux/x86/timespec_get.c
new file mode 100644
index 0000000..b21efce
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/x86/timespec_get.c
@@ -0,0 +1,29 @@
+/* timespec_get -- returns the calendar time based on a given time base.
+ Linux/x86 version.
+ Copyright (C) 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 <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 <sysdeps/unix/sysv/linux/timespec_get.c>
diff --git a/sysdeps/unix/sysv/linux/x86_64/Makefile b/sysdeps/unix/sysv/linux/x86_64/Makefile
index d6a9d36..9b82155 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 03ff875..0000000
--- 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 f712110..0000000
--- 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 866d9c1..daa14de 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 e3bc712..36f9afc 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 c00b5be..6ceb819 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 cb26068..0000000
--- 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 88369e5..93e0508 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));

102
glibc-rtkaio-clock.patch Normal file
View File

@ -0,0 +1,102 @@
#
# Based on the following upstream commit:
#
# commit 6e6249d0b461b952d0f544792372663feb6d792a
# Author: Roland McGrath <roland@hack.frob.com>
# Date: Wed Oct 24 14:50:46 2012 -0700
#
# BZ#14743: Move clock_* symbols from librt to libc.
#
# We remove the clock* functions from librtkaio.so.1 and
# use those provided in libc.so.6, matching librt.so.
#
diff -urN glibc-2.21-59-gd35273f.mod/rtkaio/clock-compat.c glibc-2.21-59-gd35273f/rtkaio/clock-compat.c
--- glibc-2.21-59-gd35273f.mod/rtkaio/clock-compat.c 1969-12-31 19:00:00.000000000 -0500
+++ glibc-2.21-59-gd35273f/rtkaio/clock-compat.c 2015-02-11 22:52:29.912765683 -0500
@@ -0,0 +1 @@
+#include <rt/clock-compat.c>
diff -urN glibc-2.21-59-gd35273f.mod/rtkaio/kaio_clock_getcpuclockid.c glibc-2.21-59-gd35273f/rtkaio/kaio_clock_getcpuclockid.c
--- glibc-2.21-59-gd35273f.mod/rtkaio/kaio_clock_getcpuclockid.c 2015-02-11 13:00:55.105400863 -0500
+++ glibc-2.21-59-gd35273f/rtkaio/kaio_clock_getcpuclockid.c 1969-12-31 19:00:00.000000000 -0500
@@ -1 +0,0 @@
-#include <clock_getcpuclockid.c>
diff -urN glibc-2.21-59-gd35273f.mod/rtkaio/kaio_clock_getres.c glibc-2.21-59-gd35273f/rtkaio/kaio_clock_getres.c
--- glibc-2.21-59-gd35273f.mod/rtkaio/kaio_clock_getres.c 2015-02-11 13:00:55.105400863 -0500
+++ glibc-2.21-59-gd35273f/rtkaio/kaio_clock_getres.c 1969-12-31 19:00:00.000000000 -0500
@@ -1 +0,0 @@
-#include <clock_getres.c>
diff -urN glibc-2.21-59-gd35273f.mod/rtkaio/kaio_clock_gettime.c glibc-2.21-59-gd35273f/rtkaio/kaio_clock_gettime.c
--- glibc-2.21-59-gd35273f.mod/rtkaio/kaio_clock_gettime.c 2015-02-11 13:00:55.109400738 -0500
+++ glibc-2.21-59-gd35273f/rtkaio/kaio_clock_gettime.c 1969-12-31 19:00:00.000000000 -0500
@@ -1 +0,0 @@
-#include <clock_gettime.c>
diff -urN glibc-2.21-59-gd35273f.mod/rtkaio/kaio_clock_nanosleep.c glibc-2.21-59-gd35273f/rtkaio/kaio_clock_nanosleep.c
--- glibc-2.21-59-gd35273f.mod/rtkaio/kaio_clock_nanosleep.c 2015-02-11 13:00:55.115400552 -0500
+++ glibc-2.21-59-gd35273f/rtkaio/kaio_clock_nanosleep.c 1969-12-31 19:00:00.000000000 -0500
@@ -1 +0,0 @@
-#include <clock_nanosleep.c>
diff -urN glibc-2.21-59-gd35273f.mod/rtkaio/kaio_clock_settime.c glibc-2.21-59-gd35273f/rtkaio/kaio_clock_settime.c
--- glibc-2.21-59-gd35273f.mod/rtkaio/kaio_clock_settime.c 2015-02-11 13:00:55.110400708 -0500
+++ glibc-2.21-59-gd35273f/rtkaio/kaio_clock_settime.c 1969-12-31 19:00:00.000000000 -0500
@@ -1 +0,0 @@
-#include <clock_settime.c>
diff -urN glibc-2.21-59-gd35273f.mod/rtkaio/kaio_get_clockfreq.c glibc-2.21-59-gd35273f/rtkaio/kaio_get_clockfreq.c
--- glibc-2.21-59-gd35273f.mod/rtkaio/kaio_get_clockfreq.c 2015-02-11 13:00:55.118400459 -0500
+++ glibc-2.21-59-gd35273f/rtkaio/kaio_get_clockfreq.c 1969-12-31 19:00:00.000000000 -0500
@@ -1 +0,0 @@
-#include <get_clockfreq.c>
diff -urN glibc-2.21-59-gd35273f.mod/rtkaio/Makefile glibc-2.21-59-gd35273f/rtkaio/Makefile
--- glibc-2.21-59-gd35273f.mod/rtkaio/Makefile 2015-02-11 13:00:55.107400801 -0500
+++ glibc-2.21-59-gd35273f/rtkaio/Makefile 2015-02-11 22:46:46.930374298 -0500
@@ -25,9 +25,6 @@
aio_read64 aio_return aio_suspend aio_write \
aio_write64 lio_listio lio_listio64 aio_sigqueue \
aio_notify
-clock-routines := get_clockfreq clock_getcpuclockid \
- clock_getres clock_gettime clock_settime \
- clock_nanosleep
timer-routines := timer_create timer_delete timer_getoverr \
timer_gettime timer_settime
shm-routines := shm_open shm_unlink
@@ -36,8 +33,9 @@
mq_timedreceive
librtkaio-routines = $(patsubst %,k%,$(aio-routines)) \
- $(patsubst %,kaio_%,$(clock-routines) $(timer-routines) \
- $(shm-routines) $(mq-routines))
+ $(patsubst %,kaio_%,$(timer-routines) \
+ $(shm-routines) $(mq-routines)) \
+ clock-compat
tests := tst-shm tst-clock tst-clock_nanosleep tst-timer tst-timer2 \
tst-aio tst-aio64 tst-aio2 tst-aio3 tst-aio4 tst-aio5 tst-aio6 \
@@ -64,7 +62,6 @@
include $(..)Rules
CFLAGS-kaio_suspend.c = -fexceptions
-CFLAGS-kaio_clock_nanosleep.c = -fexceptions -fasynchronous-unwind-tables
CFLAGS-kaio_librt-cancellation.c = -fasynchronous-unwind-tables
LDFLAGS-rtkaio.so = -Wl,-soname=lib$(libprefix)rt.so$(librt.so-version) \
@@ -88,9 +85,6 @@
else
$(addprefix $(objpfx),$(tests)): $(objpfx)librtkaio.a $(static-thread-library)
endif
-ifeq (yes,$(build-bounded))
-$(tests:%=$(objpfx)%-bp): $(objpfx)librtkaio_b.a $(bounded-thread-library)
-endif
tst-mqueue7-ARGS = -- $(built-program-file)
diff -urN glibc-2.21-59-gd35273f.mod/rtkaio/Versions glibc-2.21-59-gd35273f/rtkaio/Versions
--- glibc-2.21-59-gd35273f.mod/rtkaio/Versions 2015-02-11 13:00:55.118400459 -0500
+++ glibc-2.21-59-gd35273f/rtkaio/Versions 2015-02-11 22:36:11.974051389 -0500
@@ -6,7 +6,7 @@
aio_suspend64; aio_write; aio_write64; lio_listio; lio_listio64;
}
GLIBC_2.2 {
- # c*
+ # These have moved to libc and are still here only for compatibility.
clock_getres; clock_gettime; clock_settime; clock_getcpuclockid;
clock_nanosleep;

8
glibc.spec
View File

@ -206,8 +206,8 @@ Patch0052: %{name}-disable-rwlock-elision.patch
# symlink to it.
Patch0053: %{name}-cs-path.patch
# Temporary revert till I fix rtkaio build on i686.
Patch0054: %{name}-revert-x86-vdso.patch
# Remove the clock_* functions and use the ones in libc like librt does.
Patch0054: %{name}-rtkaio-clock.patch
##############################################################################
#
@ -583,7 +583,7 @@ package or when debugging this package.
%patch0050 -p1
%patch0052 -p1
%patch0053 -p1
%patch0054 -p1 -R
%patch0054 -p1
%patch1000 -p1
%patch1001 -p1
@ -1760,6 +1760,8 @@ rm -f *.filelist*
%changelog
* Mon Feb 23 2015 Siddhesh Poyarekar <siddhesh@redhat.com> - 2.21-4
- Unicode 7.0.0 update (#1191059).
- Add back x86 vDSO support.
- Fix rtkaio build to reference clock_* functions from libc.
* Tue Feb 17 2015 Carlos O'Donell <carlos@redhat.com> - 2.21-3
- Change patch file to avoid rpm bug 1193603 and rebuild with new NVR