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Accepting request 80630 from home:a_jaeger:branches:openSUSE:Factory

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Add support for new vdso.

OBS-URL: https://build.opensuse.org/request/show/80630
OBS-URL: https://build.opensuse.org/package/show/Base:System/glibc?expand=0&rev=98
This commit is contained in:
Andreas Jaeger 2011-09-02 09:31:57 +00:00 committed by Git OBS Bridge
parent 8714dd7041
commit 9f8fef024e
3 changed files with 320 additions and 0 deletions
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310
glibc-2.15-vsyscall.patch Normal file
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@ -0,0 +1,310 @@
commit 91b392a4bab0c2dc90e7e3ff914dec20b97adca8
Author: Ulrich Drepper <drepper@gmail.com>
Date: Sun Aug 21 13:52:28 2011 -0400
Use ifuncs for time and gettimeofday on x86-64
2011-08-21 Ulrich Drepper <drepper@gmail.com>
* sysdeps/unix/sysv/linux/x86_64/gettimeofday.S: Removed.
* sysdeps/unix/sysv/linux/x86_64/time.S: Removed.
* sysdeps/unix/sysv/linux/x86_64/gettimeofday.c: New file.
* sysdeps/unix/sysv/linux/x86_64/time.c: New file.
* sysdeps/unix/sysv/linux/x86_64/bits/libc-vdso.h: Remove declaration
of __vdso_gettimeofday.
* sysdeps/unix/sysv/linux/x86_64/init-first.c: Remove definition of
__vdso_gettimeofday and __vdso_time. Define __vdso_getcpu with
attribute_hidden.
(_libc_vdso_platform_setup): Remove initialization of
__vdso_gettimeofday and __vdso_time.
diff --git a/sysdeps/unix/sysv/linux/x86_64/bits/libc-vdso.h b/sysdeps/unix/sysv/linux/x86_64/bits/libc-vdso.h
index d7123c9..f9bf84e 100644
--- a/sysdeps/unix/sysv/linux/x86_64/bits/libc-vdso.h
+++ b/sysdeps/unix/sysv/linux/x86_64/bits/libc-vdso.h
@@ -1,5 +1,5 @@
/* Resolve function pointers to VDSO functions.
- Copyright (C) 2005, 2007 Free Software Foundation, Inc.
+ Copyright (C) 2005, 2007, 2011 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
@@ -25,9 +25,6 @@
#ifdef SHARED
-extern long int (*__vdso_gettimeofday) (struct timeval *, void *)
- attribute_hidden;
-
extern long int (*__vdso_clock_gettime) (clockid_t, struct timespec *);
#endif
diff --git a/sysdeps/unix/sysv/linux/x86_64/gettimeofday.S b/sysdeps/unix/sysv/linux/x86_64/gettimeofday.S
deleted file mode 100644
index f618e73..0000000
--- a/sysdeps/unix/sysv/linux/x86_64/gettimeofday.S
+++ /dev/null
@@ -1,49 +0,0 @@
-/* Copyright (C) 2002, 2003, 2007 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>
-#define _ERRNO_H 1
-#include <bits/errno.h>
-
-/* For the calculation see asm/vsyscall.h. */
-#define VSYSCALL_ADDR_vgettimeofday 0xffffffffff600000
-
-
-ENTRY (__gettimeofday)
- /* Align stack. */
- sub $0x8, %rsp
- cfi_adjust_cfa_offset(8)
-#ifdef SHARED
- movq __vdso_gettimeofday(%rip), %rax
- PTR_DEMANGLE (%rax)
-#else
- movq $VSYSCALL_ADDR_vgettimeofday, %rax
-#endif
- callq *%rax
- /* Check error return. */
- cmpl $-4095, %eax
- jae SYSCALL_ERROR_LABEL
-
-L(pseudo_end):
- add $0x8, %rsp
- cfi_adjust_cfa_offset(-8)
- ret
-PSEUDO_END(__gettimeofday)
-
-strong_alias (__gettimeofday, __gettimeofday_internal)
-weak_alias (__gettimeofday, gettimeofday)
diff --git a/sysdeps/unix/sysv/linux/x86_64/gettimeofday.c b/sysdeps/unix/sysv/linux/x86_64/gettimeofday.c
new file mode 100644
index 0000000..1a773d6
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/x86_64/gettimeofday.c
@@ -0,0 +1,49 @@
+/* Copyright (C) 2002, 2003, 2007, 2011 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 <dl-vdso.h>
+
+
+#define VSYSCALL_ADDR_vgettimeofday 0xffffffffff600000ul
+
+
+#ifdef SHARED
+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 ("gettimeofday", &linux26)
+ ?: (void *) VSYSCALL_ADDR_vgettimeofday);
+}
+__asm (".type __gettimeofday, %gnu_indirect_function");
+#else
+# include <sys/time.h>
+
+int
+__gettimeofday (struct timeval *tv, struct timezone *tz)
+{
+ return ((int (*) (struct timeval *, struct timezone *)) VSYSCALL_ADDR_vgettimeofday) (tv, tz);
+}
+#endif
+
+weak_alias (__gettimeofday, gettimeofday)
+strong_alias (__gettimeofday, __gettimeofday_internal)
diff --git a/sysdeps/unix/sysv/linux/x86_64/init-first.c b/sysdeps/unix/sysv/linux/x86_64/init-first.c
index e676f62..25cf08b 100644
--- a/sysdeps/unix/sysv/linux/x86_64/init-first.c
+++ b/sysdeps/unix/sysv/linux/x86_64/init-first.c
@@ -20,15 +20,11 @@
# include <dl-vdso.h>
# include <bits/libc-vdso.h>
-long int (*__vdso_gettimeofday) (struct timeval *, void *) attribute_hidden;
-
long int (*__vdso_clock_gettime) (clockid_t, struct timespec *)
__attribute__ ((nocommon));
strong_alias (__vdso_clock_gettime, __GI___vdso_clock_gettime attribute_hidden)
-long int (*__vdso_getcpu) (unsigned *, unsigned *, void *);
-
-long int (*__vdso_time) (time_t *) attribute_hidden;
+long int (*__vdso_getcpu) (unsigned *, unsigned *, void *) attribute_hidden;
static inline void
@@ -36,15 +32,7 @@ _libc_vdso_platform_setup (void)
{
PREPARE_VERSION (linux26, "LINUX_2.6", 61765110);
- void *p = _dl_vdso_vsym ("gettimeofday", &linux26);
- /* If the vDSO is not available we fall back on the old vsyscall. */
-#define VSYSCALL_ADDR_vgettimeofday 0xffffffffff600000ul
- if (p == NULL)
- p = (void *) VSYSCALL_ADDR_vgettimeofday;
- PTR_MANGLE (p);
- __vdso_gettimeofday = p;
-
- p = _dl_vdso_vsym ("clock_gettime", &linux26);
+ void *p = _dl_vdso_vsym ("clock_gettime", &linux26);
PTR_MANGLE (p);
__GI___vdso_clock_gettime = p;
@@ -55,14 +43,6 @@ _libc_vdso_platform_setup (void)
p = (void *) VSYSCALL_ADDR_vgetcpu;
PTR_MANGLE (p);
__vdso_getcpu = p;
-
- p = _dl_vdso_vsym ("time", &linux26);
- /* If the vDSO is not available we fall back on the old vsyscall. */
-#define VSYSCALL_ADDR_vtime 0xffffffffff600400
- if (p == NULL)
- p = (void *) VSYSCALL_ADDR_vtime;
- PTR_MANGLE (p);
- __vdso_time = p;
}
# define VDSO_SETUP _libc_vdso_platform_setup
diff --git a/sysdeps/unix/sysv/linux/x86_64/time.S b/sysdeps/unix/sysv/linux/x86_64/time.S
deleted file mode 100644
index 66d7498..0000000
--- a/sysdeps/unix/sysv/linux/x86_64/time.S
+++ /dev/null
@@ -1,47 +0,0 @@
-/* Copyright (C) 2001,02, 2003, 2011 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>
-#define _ERRNO_H 1
-#include <bits/errno.h>
-
-/* For the calculation see asm/vsyscall.h. */
-#define VSYSCALL_ADDR_vtime 0xffffffffff600400
-
-
-/* Return the current time as a `time_t' and also put it in *T if T is
- not NULL. Time is represented as seconds from Jan 1 00:00:00 1970. */
-
-ENTRY (time)
- /* Align stack. */
- sub $0x8, %rsp
- cfi_adjust_cfa_offset(8)
-
-#ifdef SHARED
- movq __vdso_time(%rip), %rax
- PTR_DEMANGLE (%rax)
-#else
- movq $VSYSCALL_ADDR_vtime, %rax
-#endif
- callq *%rax
-
- add $0x8, %rsp
- cfi_adjust_cfa_offset(-8)
- ret
-PSEUDO_END_NOERRNO(time)
-libc_hidden_def (time)
diff --git a/sysdeps/unix/sysv/linux/x86_64/time.c b/sysdeps/unix/sysv/linux/x86_64/time.c
new file mode 100644
index 0000000..698d561
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/x86_64/time.c
@@ -0,0 +1,47 @@
+/* Copyright (C) 2001,02, 2003, 2011 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 <dl-vdso.h>
+
+
+#define VSYSCALL_ADDR_vtime 0xffffffffff600400
+
+
+#ifdef SHARED
+void *time_ifunc (void) __asm__ ("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 ("time", &linux26) ?: (void *) VSYSCALL_ADDR_vtime;
+}
+__asm (".type time, %gnu_indirect_function");
+#else
+# include <time.h>
+
+time_t
+time (time_t *t)
+{
+ return ((time_t (*) (time_t *)) VSYSCALL_ADDR_vtime) (t);
+}
+#endif
+
+strong_alias (time, __GI_time)

7
glibc.changes
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@ -1,3 +1,10 @@
-------------------------------------------------------------------
Thu Sep 1 20:49:16 UTC 2011 - aj@suse.de
- Add support for new vdso (3.1 kernel) and only then
for vsyscall which is not anymore in 3.1 kernel
(patch glibc-2.15-vsyscall.patch)
------------------------------------------------------------------- -------------------------------------------------------------------
Thu Aug 25 09:44:37 UTC 2011 - lnussel@suse.de Thu Aug 25 09:44:37 UTC 2011 - lnussel@suse.de

3
glibc.spec
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@ -200,6 +200,8 @@ Patch67: glibc-revert-fseek-on-fclose.diff
Patch68: glibc-fix-lookup-crash.patch Patch68: glibc-fix-lookup-crash.patch
# PATCH-FIX-UPSTREAM Fix fopen("non-existing-file", "re") errno bnc#713146 aj@suse.de # PATCH-FIX-UPSTREAM Fix fopen("non-existing-file", "re") errno bnc#713146 aj@suse.de
Patch69: fopen-close-exec.patch Patch69: fopen-close-exec.patch
# PATCH-FIX-UPSTREAM Use ifuncs for time and gettimeofday on x86-64 - aj@suse.de
Patch70: glibc-2.15-vsyscall.patch
# PATCH-FEATURE-OPENSUSE -- add sha support to crypt_blowfish lnussel@suse.de # PATCH-FEATURE-OPENSUSE -- add sha support to crypt_blowfish lnussel@suse.de
Patch80: crypt_blowfish-1.2-sha.diff Patch80: crypt_blowfish-1.2-sha.diff
# PATCH-FEATURE-OPENSUSE -- use separate symbol version for Owl extensions - lnussel@suse.de # PATCH-FEATURE-OPENSUSE -- use separate symbol version for Owl extensions - lnussel@suse.de
@ -435,6 +437,7 @@ rm nscd/s-stamp
%patch67 -p1 %patch67 -p1
%patch68 -p1 %patch68 -p1
%patch69 -p1 %patch69 -p1
%patch70 -p1
# #
# Inconsistency detected by ld.so: dl-close.c: 719: _dl_close: Assertion `map->l_init_called' failed! # Inconsistency detected by ld.so: dl-close.c: 719: _dl_close: Assertion `map->l_init_called' failed!