forked from pool/glibc
Accepting request 80630 from home:a_jaeger:branches:openSUSE:Factory
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
Git OBS Bridge
parent
8714dd7041
commit
9f8fef024e
310
glibc-2.15-vsyscall.patch
Normal file
310
glibc-2.15-vsyscall.patch
Normal file
@ -0,0 +1,310 @@
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commit 91b392a4bab0c2dc90e7e3ff914dec20b97adca8
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Author: Ulrich Drepper <drepper@gmail.com>
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Date: Sun Aug 21 13:52:28 2011 -0400
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Use ifuncs for time and gettimeofday on x86-64
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2011-08-21 Ulrich Drepper <drepper@gmail.com>
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* sysdeps/unix/sysv/linux/x86_64/gettimeofday.S: Removed.
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* sysdeps/unix/sysv/linux/x86_64/time.S: Removed.
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* sysdeps/unix/sysv/linux/x86_64/gettimeofday.c: New file.
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* sysdeps/unix/sysv/linux/x86_64/time.c: New file.
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* sysdeps/unix/sysv/linux/x86_64/bits/libc-vdso.h: Remove declaration
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of __vdso_gettimeofday.
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* sysdeps/unix/sysv/linux/x86_64/init-first.c: Remove definition of
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__vdso_gettimeofday and __vdso_time. Define __vdso_getcpu with
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attribute_hidden.
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(_libc_vdso_platform_setup): Remove initialization of
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__vdso_gettimeofday and __vdso_time.
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diff --git a/sysdeps/unix/sysv/linux/x86_64/bits/libc-vdso.h b/sysdeps/unix/sysv/linux/x86_64/bits/libc-vdso.h
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index d7123c9..f9bf84e 100644
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--- a/sysdeps/unix/sysv/linux/x86_64/bits/libc-vdso.h
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+++ b/sysdeps/unix/sysv/linux/x86_64/bits/libc-vdso.h
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@@ -1,5 +1,5 @@
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/* Resolve function pointers to VDSO functions.
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- Copyright (C) 2005, 2007 Free Software Foundation, Inc.
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+ Copyright (C) 2005, 2007, 2011 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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@@ -25,9 +25,6 @@
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#ifdef SHARED
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-extern long int (*__vdso_gettimeofday) (struct timeval *, void *)
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- attribute_hidden;
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-
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extern long int (*__vdso_clock_gettime) (clockid_t, struct timespec *);
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#endif
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diff --git a/sysdeps/unix/sysv/linux/x86_64/gettimeofday.S b/sysdeps/unix/sysv/linux/x86_64/gettimeofday.S
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deleted file mode 100644
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index f618e73..0000000
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--- a/sysdeps/unix/sysv/linux/x86_64/gettimeofday.S
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+++ /dev/null
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@@ -1,49 +0,0 @@
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-/* Copyright (C) 2002, 2003, 2007 Free Software Foundation, Inc.
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- This file is part of the GNU C Library.
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-
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- The GNU C Library is free software; you can redistribute it and/or
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- modify it under the terms of the GNU Lesser General Public
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- License as published by the Free Software Foundation; either
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- version 2.1 of the License, or (at your option) any later version.
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-
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- The GNU C Library is distributed in the hope that it will be useful,
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- but WITHOUT ANY WARRANTY; without even the implied warranty of
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- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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- Lesser General Public License for more details.
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-
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- You should have received a copy of the GNU Lesser General Public
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- License along with the GNU C Library; if not, write to the Free
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- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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- 02111-1307 USA. */
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-
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-#include <sysdep.h>
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-#define _ERRNO_H 1
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-#include <bits/errno.h>
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-
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-/* For the calculation see asm/vsyscall.h. */
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-#define VSYSCALL_ADDR_vgettimeofday 0xffffffffff600000
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-
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-
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-ENTRY (__gettimeofday)
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- /* Align stack. */
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- sub $0x8, %rsp
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- cfi_adjust_cfa_offset(8)
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-#ifdef SHARED
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- movq __vdso_gettimeofday(%rip), %rax
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- PTR_DEMANGLE (%rax)
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-#else
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- movq $VSYSCALL_ADDR_vgettimeofday, %rax
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-#endif
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- callq *%rax
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- /* Check error return. */
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- cmpl $-4095, %eax
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- jae SYSCALL_ERROR_LABEL
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-
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-L(pseudo_end):
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- add $0x8, %rsp
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- cfi_adjust_cfa_offset(-8)
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- ret
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-PSEUDO_END(__gettimeofday)
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-
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-strong_alias (__gettimeofday, __gettimeofday_internal)
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-weak_alias (__gettimeofday, gettimeofday)
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diff --git a/sysdeps/unix/sysv/linux/x86_64/gettimeofday.c b/sysdeps/unix/sysv/linux/x86_64/gettimeofday.c
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new file mode 100644
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index 0000000..1a773d6
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--- /dev/null
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+++ b/sysdeps/unix/sysv/linux/x86_64/gettimeofday.c
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@@ -0,0 +1,49 @@
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+/* Copyright (C) 2002, 2003, 2007, 2011 Free Software Foundation, Inc.
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+ This file is part of the GNU C Library.
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+
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+ The GNU C Library is free software; you can redistribute it and/or
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+ modify it under the terms of the GNU Lesser General Public
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+ License as published by the Free Software Foundation; either
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+ version 2.1 of the License, or (at your option) any later version.
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+
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+ The GNU C Library is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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+ Lesser General Public License for more details.
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+
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+ You should have received a copy of the GNU Lesser General Public
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+ License along with the GNU C Library; if not, write to the Free
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+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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+ 02111-1307 USA. */
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+
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+#include <dl-vdso.h>
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+
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+
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+#define VSYSCALL_ADDR_vgettimeofday 0xffffffffff600000ul
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+
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+
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+#ifdef SHARED
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+void *gettimeofday_ifunc (void) __asm__ ("__gettimeofday");
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+
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+void *
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+gettimeofday_ifunc (void)
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+{
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+ PREPARE_VERSION (linux26, "LINUX_2.6", 61765110);
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+
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+ /* If the vDSO is not available we fall back on the old vsyscall. */
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+ return (_dl_vdso_vsym ("gettimeofday", &linux26)
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+ ?: (void *) VSYSCALL_ADDR_vgettimeofday);
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+}
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+__asm (".type __gettimeofday, %gnu_indirect_function");
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+#else
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+# include <sys/time.h>
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+
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+int
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+__gettimeofday (struct timeval *tv, struct timezone *tz)
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+{
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+ return ((int (*) (struct timeval *, struct timezone *)) VSYSCALL_ADDR_vgettimeofday) (tv, tz);
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+}
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+#endif
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+
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+weak_alias (__gettimeofday, gettimeofday)
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+strong_alias (__gettimeofday, __gettimeofday_internal)
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diff --git a/sysdeps/unix/sysv/linux/x86_64/init-first.c b/sysdeps/unix/sysv/linux/x86_64/init-first.c
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index e676f62..25cf08b 100644
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--- a/sysdeps/unix/sysv/linux/x86_64/init-first.c
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+++ b/sysdeps/unix/sysv/linux/x86_64/init-first.c
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@@ -20,15 +20,11 @@
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# include <dl-vdso.h>
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# include <bits/libc-vdso.h>
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-long int (*__vdso_gettimeofday) (struct timeval *, void *) attribute_hidden;
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-
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long int (*__vdso_clock_gettime) (clockid_t, struct timespec *)
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__attribute__ ((nocommon));
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strong_alias (__vdso_clock_gettime, __GI___vdso_clock_gettime attribute_hidden)
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-long int (*__vdso_getcpu) (unsigned *, unsigned *, void *);
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-
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-long int (*__vdso_time) (time_t *) attribute_hidden;
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+long int (*__vdso_getcpu) (unsigned *, unsigned *, void *) attribute_hidden;
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static inline void
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@@ -36,15 +32,7 @@ _libc_vdso_platform_setup (void)
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{
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PREPARE_VERSION (linux26, "LINUX_2.6", 61765110);
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- void *p = _dl_vdso_vsym ("gettimeofday", &linux26);
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- /* If the vDSO is not available we fall back on the old vsyscall. */
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-#define VSYSCALL_ADDR_vgettimeofday 0xffffffffff600000ul
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- if (p == NULL)
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- p = (void *) VSYSCALL_ADDR_vgettimeofday;
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- PTR_MANGLE (p);
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- __vdso_gettimeofday = p;
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-
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- p = _dl_vdso_vsym ("clock_gettime", &linux26);
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+ void *p = _dl_vdso_vsym ("clock_gettime", &linux26);
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PTR_MANGLE (p);
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__GI___vdso_clock_gettime = p;
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@@ -55,14 +43,6 @@ _libc_vdso_platform_setup (void)
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p = (void *) VSYSCALL_ADDR_vgetcpu;
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PTR_MANGLE (p);
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__vdso_getcpu = p;
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-
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- p = _dl_vdso_vsym ("time", &linux26);
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- /* If the vDSO is not available we fall back on the old vsyscall. */
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-#define VSYSCALL_ADDR_vtime 0xffffffffff600400
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- if (p == NULL)
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- p = (void *) VSYSCALL_ADDR_vtime;
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- PTR_MANGLE (p);
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- __vdso_time = p;
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}
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# define VDSO_SETUP _libc_vdso_platform_setup
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diff --git a/sysdeps/unix/sysv/linux/x86_64/time.S b/sysdeps/unix/sysv/linux/x86_64/time.S
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deleted file mode 100644
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index 66d7498..0000000
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--- a/sysdeps/unix/sysv/linux/x86_64/time.S
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+++ /dev/null
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@@ -1,47 +0,0 @@
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-/* Copyright (C) 2001,02, 2003, 2011 Free Software Foundation, Inc.
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- This file is part of the GNU C Library.
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-
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- The GNU C Library is free software; you can redistribute it and/or
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- modify it under the terms of the GNU Lesser General Public
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- License as published by the Free Software Foundation; either
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- version 2.1 of the License, or (at your option) any later version.
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-
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- The GNU C Library is distributed in the hope that it will be useful,
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- but WITHOUT ANY WARRANTY; without even the implied warranty of
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- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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- Lesser General Public License for more details.
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-
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- You should have received a copy of the GNU Lesser General Public
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- License along with the GNU C Library; if not, write to the Free
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- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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- 02111-1307 USA. */
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-
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-#include <sysdep.h>
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-#define _ERRNO_H 1
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-#include <bits/errno.h>
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-
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-/* For the calculation see asm/vsyscall.h. */
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-#define VSYSCALL_ADDR_vtime 0xffffffffff600400
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-
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-
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-/* Return the current time as a `time_t' and also put it in *T if T is
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- not NULL. Time is represented as seconds from Jan 1 00:00:00 1970. */
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-
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-ENTRY (time)
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- /* Align stack. */
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- sub $0x8, %rsp
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- cfi_adjust_cfa_offset(8)
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-
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-#ifdef SHARED
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- movq __vdso_time(%rip), %rax
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- PTR_DEMANGLE (%rax)
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-#else
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- movq $VSYSCALL_ADDR_vtime, %rax
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-#endif
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- callq *%rax
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-
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- add $0x8, %rsp
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- cfi_adjust_cfa_offset(-8)
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- ret
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-PSEUDO_END_NOERRNO(time)
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-libc_hidden_def (time)
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diff --git a/sysdeps/unix/sysv/linux/x86_64/time.c b/sysdeps/unix/sysv/linux/x86_64/time.c
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new file mode 100644
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index 0000000..698d561
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--- /dev/null
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+++ b/sysdeps/unix/sysv/linux/x86_64/time.c
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@@ -0,0 +1,47 @@
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+/* Copyright (C) 2001,02, 2003, 2011 Free Software Foundation, Inc.
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+ This file is part of the GNU C Library.
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+
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+ The GNU C Library is free software; you can redistribute it and/or
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+ modify it under the terms of the GNU Lesser General Public
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+ License as published by the Free Software Foundation; either
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+ version 2.1 of the License, or (at your option) any later version.
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+
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+ The GNU C Library is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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+ Lesser General Public License for more details.
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+
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+ You should have received a copy of the GNU Lesser General Public
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+ License along with the GNU C Library; if not, write to the Free
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+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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+ 02111-1307 USA. */
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+
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+#include <dl-vdso.h>
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+
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+
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+#define VSYSCALL_ADDR_vtime 0xffffffffff600400
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+
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+
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+#ifdef SHARED
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+void *time_ifunc (void) __asm__ ("time");
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+
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+void *
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+time_ifunc (void)
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+{
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+ PREPARE_VERSION (linux26, "LINUX_2.6", 61765110);
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+
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+ /* If the vDSO is not available we fall back on the old vsyscall. */
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+ return _dl_vdso_vsym ("time", &linux26) ?: (void *) VSYSCALL_ADDR_vtime;
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+}
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+__asm (".type time, %gnu_indirect_function");
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+#else
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+# include <time.h>
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+
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+time_t
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+time (time_t *t)
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+{
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+ return ((time_t (*) (time_t *)) VSYSCALL_ADDR_vtime) (t);
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+}
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+#endif
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+
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+strong_alias (time, __GI_time)
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@ -1,3 +1,10 @@
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-------------------------------------------------------------------
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Thu Sep 1 20:49:16 UTC 2011 - aj@suse.de
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- Add support for new vdso (3.1 kernel) and only then
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for vsyscall which is not anymore in 3.1 kernel
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(patch glibc-2.15-vsyscall.patch)
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-------------------------------------------------------------------
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Thu Aug 25 09:44:37 UTC 2011 - lnussel@suse.de
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@ -200,6 +200,8 @@ Patch67: glibc-revert-fseek-on-fclose.diff
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Patch68: glibc-fix-lookup-crash.patch
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# PATCH-FIX-UPSTREAM Fix fopen("non-existing-file", "re") errno bnc#713146 aj@suse.de
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Patch69: fopen-close-exec.patch
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# PATCH-FIX-UPSTREAM Use ifuncs for time and gettimeofday on x86-64 - aj@suse.de
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Patch70: glibc-2.15-vsyscall.patch
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# PATCH-FEATURE-OPENSUSE -- add sha support to crypt_blowfish lnussel@suse.de
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Patch80: crypt_blowfish-1.2-sha.diff
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# PATCH-FEATURE-OPENSUSE -- use separate symbol version for Owl extensions - lnussel@suse.de
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@ -435,6 +437,7 @@ rm nscd/s-stamp
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%patch67 -p1
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%patch68 -p1
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%patch69 -p1
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%patch70 -p1
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#
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# Inconsistency detected by ld.so: dl-close.c: 719: _dl_close: Assertion `map->l_init_called' failed!
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