From patchwork Thu Mar 27 12:54:34 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joseph Myers X-Patchwork-Id: 309 Return-Path: X-Original-To: siddhesh@wilcox.dreamhost.com Delivered-To: siddhesh@wilcox.dreamhost.com Received: from homiemail-mx23.g.dreamhost.com (caibbdcaabja.dreamhost.com [208.113.200.190]) by wilcox.dreamhost.com (Postfix) with ESMTP id 256983604D2 for ; Thu, 27 Mar 2014 05:54:49 -0700 (PDT) Received: by homiemail-mx23.g.dreamhost.com (Postfix, from userid 14307373) id B14EF62045A20; Thu, 27 Mar 2014 05:54:48 -0700 (PDT) X-Original-To: glibc@patchwork.siddhesh.in Delivered-To: x14307373@homiemail-mx23.g.dreamhost.com Received: from sourceware.org (server1.sourceware.org [209.132.180.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by homiemail-mx23.g.dreamhost.com (Postfix) with ESMTPS id 7FB2B62067A3E for ; Thu, 27 Mar 2014 05:54:48 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:date:from:to:cc:subject:message-id :mime-version:content-type; q=dns; s=default; b=CekFnSeF73Hzr5LS qypB083autlTHncleT27+0DDiDP/F/Qwf6rTq4t6Ecq8MDi5u8Mgshsh7shf8MPm qyW9L5XM6ULIDJqEqjmMvKqOu0G4zBMypGZC2mlvT84eSV1wUHni5koz+bST7peu qDfMX7PeSiGNQmOV1E8BSQUkE/4= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:date:from:to:cc:subject:message-id :mime-version:content-type; s=default; bh=svSQi/H3MT1LUAgEvpEvWJ vyCyI=; b=oRvU+JGWIYgGqJAiJKsX04U4bGJJi9kIOR88ZEQJvMCZXvuX+nHqP2 5WOjkIppe55FKYWoKUZ+4tIROXHGSvZ02VWWwsdnr2zCFX+XA+CpUyj85gmon4FM La+AEyIq5evWcz4bXWSdo0HhxOnJguAWjksAclVwAyCuubfHNBU5E= Received: (qmail 24943 invoked by alias); 27 Mar 2014 12:54:46 -0000 Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libc-alpha-owner@sourceware.org Delivered-To: mailing list libc-alpha@sourceware.org Received: (qmail 24919 invoked by uid 89); 27 Mar 2014 12:54:45 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-1.0 required=5.0 tests=AWL, BAYES_40 autolearn=ham version=3.3.2 X-HELO: relay1.mentorg.com Date: Thu, 27 Mar 2014 12:54:34 +0000 From: "Joseph S. Myers" To: CC: David Holsgrove Subject: Increase minimum Linux kernel version to 2.6.32 Message-ID: MIME-Version: 1.0 X-DH-Original-To: glibc@patchwork.siddhesh.in This patch, relative to a tree with and (both pending review for MicroBlaze) applied, increases the minimum Linux kernel version for glibc to 2.6.32, as discussed in the thread starting at . This patch just does the minimal change to arch_minimum_kernel settings (and LIBC_LINUX_VERSION, which determines the minimum kernel headers version, as it doesn't make sense for that to be older than the minimum kernel that can be used at runtime). Followups would be expected to do, roughly and not necessarily precisely in this order: * Remove __LINUX_KERNEL_VERSION checks in kernel-features.h files where those checks are always true / always false for kernels 2.6.32 and above. * Otherwise simplify/improve conditionals in those files (for example, where defining once in the main file then undefining in architecture-specific files makes things clearer than having lots of separate definitions of the same macro), possibly fixing in the process cases where a macro should optimally have been defined for a given architecture but wasn't. (In the review in preparation for this version increase I checked what the right conditions should be for all macros in the main kernel-features.h whose definitions there would have been affected by the increase - but I only fixed that subset of the issues found where --enable-kernel=2.6.32 would have caused a kernel feature to be wrongly assumed to be present, not any cases where a feature is not assumed but could be assumed.) * Remove conditionals on __ASSUME_* where they can now be taken to be always-true, and the definitions when the macros are only used in Linux-specific files. * Split more architectures out of the main kernel-features.h (like ex-ports architectures), once various of the architecture conditionals there have been eliminated so the new architecture-specific files are no larger than actually necessary. Tested x86_64. 2014-03-27 Joseph Myers [BZ #9894] * sysdeps/unix/sysv/linux/configure.ac (LIBC_LINUX_VERSION): Change to 2.6.32. (arch_minimum_kernel): Change all 2.6.16 settings to 2.6.32. * sysdeps/unix/sysv/linux/configure: Regenerated. * sysdeps/unix/sysv/linux/microblaze/configure.ac: Remove file. * sysdeps/unix/sysv/linux/microblaze/configure: Likewise. * sysdeps/unix/sysv/linux/tile/configure.ac: Likewise. * sysdeps/unix/sysv/linux/tile/configure: Likewise. * README: Update reference to required Linux kernel version. * manual/install.texi (Linux): Update reference to required Linux kernel headers version. * INSTALL: Regenerated. diff --git a/INSTALL b/INSTALL index 13fb678..f49fad4 100644 --- a/INSTALL +++ b/INSTALL @@ -389,7 +389,7 @@ Specific advice for GNU/Linux systems ===================================== If you are installing the GNU C Library on GNU/Linux systems, you need -to have the header files from a 2.6.19.1 or newer kernel around for +to have the header files from a 2.6.32 or newer kernel around for reference. These headers must be installed using `make headers_install'; the headers present in the kernel source directory are not suitable for direct use by the GNU C Library. You do not need diff --git a/NEWS b/NEWS index 895c640..cfd0f5a 100644 --- a/NEWS +++ b/NEWS @@ -14,6 +14,9 @@ Version 2.20 16639, 16642, 16649, 16670, 16674, 16677, 16680, 16683, 16689, 16695, 16701, 16706, 16707, 16712, 16713, 16714, 16731, 16743, 16758. +* The minimum Linux kernel version that this version of the GNU C Library + can be used with is 2.6.32. + * Running the testsuite no longer terminates as soon as a test fails. Instead, a file tests.sum (xtests.sum from "make xcheck") is generated, with PASS or FAIL lines for individual tests. A summary of the results is diff --git a/README b/README index f0e0628..90ea24f 100644 --- a/README +++ b/README @@ -17,7 +17,7 @@ GNU/Hurd support requires out-of-tree patches that will eventually be incorporated into an official GNU C Library release. When working with Linux kernels, this version of the GNU C Library -requires Linux kernel version 2.6.16 or later. +requires Linux kernel version 2.6.32 or later. Also note that the shared version of the libgcc_s library must be installed for the pthread library to work correctly. diff --git a/manual/install.texi b/manual/install.texi index d2b8c1e..d7da02b 100644 --- a/manual/install.texi +++ b/manual/install.texi @@ -445,7 +445,7 @@ patches, although we try to avoid this. @cindex kernel header files If you are installing @theglibc{} on @gnulinuxsystems{}, you need to have -the header files from a 2.6.19.1 or newer kernel around for reference. +the header files from a 2.6.32 or newer kernel around for reference. These headers must be installed using @samp{make headers_install}; the headers present in the kernel source directory are not suitable for direct use by @theglibc{}. You do not need to use that kernel, just have diff --git a/sysdeps/unix/sysv/linux/configure b/sysdeps/unix/sysv/linux/configure index d5ee4ef..fb2e343 100644 --- a/sysdeps/unix/sysv/linux/configure +++ b/sysdeps/unix/sysv/linux/configure @@ -174,33 +174,33 @@ $as_echo "$ac_cv_path_EGREP" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: checking installed Linux kernel header files" >&5 $as_echo_n "checking installed Linux kernel header files... " >&6; } -if ${libc_cv_linux2619+:} false; then : +if ${libc_cv_linux2632+:} false; then : $as_echo_n "(cached) " >&6 else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include -#if !defined LINUX_VERSION_CODE || LINUX_VERSION_CODE < (2 *65536+ 6 *256+ 19) /* 2.6.19 */ +#if !defined LINUX_VERSION_CODE || LINUX_VERSION_CODE < (2 *65536+ 6 *256+ 32) /* 2.6.32 */ eat flaming death #endif _ACEOF if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | $EGREP "eat flaming death" >/dev/null 2>&1; then : - libc_cv_linux2619='TOO OLD!' + libc_cv_linux2632='TOO OLD!' else - libc_cv_linux2619='2.6.19 or later' + libc_cv_linux2632='2.6.32 or later' fi rm -f conftest* fi -{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_linux2619" >&5 -$as_echo "$libc_cv_linux2619" >&6; } -if test "$libc_cv_linux2619" != '2.6.19 or later'; then +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_linux2632" >&5 +$as_echo "$libc_cv_linux2632" >&6; } +if test "$libc_cv_linux2632" != '2.6.32 or later'; then as_fn_error $? "GNU libc requires kernel header files from -Linux 2.6.19 or later to be installed before configuring. +Linux 2.6.32 or later to be installed before configuring. The kernel header files are found usually in /usr/include/asm and /usr/include/linux; make sure these directories use files from -Linux 2.6.19 or later. This check uses , so +Linux 2.6.32 or later. This check uses , so make sure that file was built correctly when installing the kernel header files. To use kernel headers not from /usr/include/linux, use the configure option --with-headers." "$LINENO" 5 @@ -216,37 +216,37 @@ test -n "$arch_minimum_kernel" || case "$machine" in i386*) libc_cv_gcc_unwind_find_fde=yes - arch_minimum_kernel=2.6.16 + arch_minimum_kernel=2.6.32 ;; x86_64/x32) arch_minimum_kernel=3.4.0 ;; powerpc/powerpc32*) libc_cv_gcc_unwind_find_fde=yes - arch_minimum_kernel=2.6.16 + arch_minimum_kernel=2.6.32 ;; s390/s390-32) libc_cv_gcc_unwind_find_fde=yes - arch_minimum_kernel=2.6.16 + arch_minimum_kernel=2.6.32 ;; s390/s390-64) libc_cv_gcc_unwind_find_fde=yes - arch_minimum_kernel=2.6.16 + arch_minimum_kernel=2.6.32 ;; sh*) - arch_minimum_kernel=2.6.16 + arch_minimum_kernel=2.6.32 libc_cv_gcc_unwind_find_fde=yes ;; sparc/sparc64*) libc_cv_gcc_unwind_find_fde=yes - arch_minimum_kernel=2.6.16 + arch_minimum_kernel=2.6.32 ;; sparc*) libc_cv_gcc_unwind_find_fde=yes - arch_minimum_kernel=2.6.16 + arch_minimum_kernel=2.6.32 ;; *) - arch_minimum_kernel=2.6.16 + arch_minimum_kernel=2.6.32 ;; esac if test -n "$minimum_kernel"; then diff --git a/sysdeps/unix/sysv/linux/configure.ac b/sysdeps/unix/sysv/linux/configure.ac index 90cbf48..21c355b 100644 --- a/sysdeps/unix/sysv/linux/configure.ac +++ b/sysdeps/unix/sysv/linux/configure.ac @@ -5,7 +5,7 @@ GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory. # existing system library, because we are the only system library. inhibit_glue=yes -define([LIBC_LINUX_VERSION],[2.6.19])dnl +define([LIBC_LINUX_VERSION],[2.6.32])dnl if test -n "$sysheaders"; then OLD_CPPFLAGS=$CPPFLAGS CPPFLAGS="$CPPFLAGS $SYSINCLUDES" @@ -41,37 +41,37 @@ test -n "$arch_minimum_kernel" || case "$machine" in i386*) libc_cv_gcc_unwind_find_fde=yes - arch_minimum_kernel=2.6.16 + arch_minimum_kernel=2.6.32 ;; x86_64/x32) arch_minimum_kernel=3.4.0 ;; powerpc/powerpc32*) libc_cv_gcc_unwind_find_fde=yes - arch_minimum_kernel=2.6.16 + arch_minimum_kernel=2.6.32 ;; s390/s390-32) libc_cv_gcc_unwind_find_fde=yes - arch_minimum_kernel=2.6.16 + arch_minimum_kernel=2.6.32 ;; s390/s390-64) libc_cv_gcc_unwind_find_fde=yes - arch_minimum_kernel=2.6.16 + arch_minimum_kernel=2.6.32 ;; sh*) - arch_minimum_kernel=2.6.16 + arch_minimum_kernel=2.6.32 libc_cv_gcc_unwind_find_fde=yes ;; sparc/sparc64*) libc_cv_gcc_unwind_find_fde=yes - arch_minimum_kernel=2.6.16 + arch_minimum_kernel=2.6.32 ;; sparc*) libc_cv_gcc_unwind_find_fde=yes - arch_minimum_kernel=2.6.16 + arch_minimum_kernel=2.6.32 ;; *) - arch_minimum_kernel=2.6.16 + arch_minimum_kernel=2.6.32 ;; esac if test -n "$minimum_kernel"; then diff --git a/sysdeps/unix/sysv/linux/microblaze/configure b/sysdeps/unix/sysv/linux/microblaze/configure deleted file mode 100644 index 0866388..0000000 --- a/sysdeps/unix/sysv/linux/microblaze/configure +++ /dev/null @@ -1,4 +0,0 @@ -# This file is generated from configure.ac by Autoconf. DO NOT EDIT! - # Local configure fragment for sysdeps/unix/sysv/linux/microblaze. - -arch_minimum_kernel=2.6.30 diff --git a/sysdeps/unix/sysv/linux/microblaze/configure.ac b/sysdeps/unix/sysv/linux/microblaze/configure.ac deleted file mode 100644 index f283d37..0000000 --- a/sysdeps/unix/sysv/linux/microblaze/configure.ac +++ /dev/null @@ -1,4 +0,0 @@ -GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory. -# Local configure fragment for sysdeps/unix/sysv/linux/microblaze. - -arch_minimum_kernel=2.6.30 diff --git a/sysdeps/unix/sysv/linux/tile/configure b/sysdeps/unix/sysv/linux/tile/configure deleted file mode 100644 index 02f6c8c..0000000 --- a/sysdeps/unix/sysv/linux/tile/configure +++ /dev/null @@ -1,4 +0,0 @@ -# This file is generated from configure.ac by Autoconf. DO NOT EDIT! - # Local configure fragment for sysdeps/unix/sysv/linux/tile. - -arch_minimum_kernel=2.6.32 diff --git a/sysdeps/unix/sysv/linux/tile/configure.ac b/sysdeps/unix/sysv/linux/tile/configure.ac deleted file mode 100644 index b983e28..0000000 --- a/sysdeps/unix/sysv/linux/tile/configure.ac +++ /dev/null @@ -1,4 +0,0 @@ -GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory. -# Local configure fragment for sysdeps/unix/sysv/linux/tile. - -arch_minimum_kernel=2.6.32