glibc/sysdeps/unix/sysv/linux/i386
Joseph Myers 5b4ecd3f95 Require Linux 3.2 except on x86 / x86_64, 3.2 headers everywhere.
In <https://sourceware.org/ml/libc-alpha/2016-01/msg00885.html> I
proposed a minimum Linux kernel version of 3.2 for glibc 2.24, since
Linux 2.6.32 has reached EOL.

In the discussion in February, some concerns were expressed about
compatibility with OpenVZ containers.  It's not clear that these are
real issues, given OpenVZ backporting kernel features and faking the
kernel version for guest software, as discussed in
<https://sourceware.org/ml/libc-alpha/2016-02/msg00278.html>.  It's
also not clear that supporting running GNU/Linux distributions from
late 2016 (at the earliest) on a kernel series from 2009 is a sensible
expectation.  However, as an interim step, this patch increases the
requirement everywhere except x86 / x86_64 (since the controversy was
only about those architectures); the special caveats and settings can
easily be removed later when we're ready to increase the requirements
on x86 / x86_64 (and if someone would like to raise the issue on LWN
as suggested in the previous discussion, that would be welcome).  3.2
kernel headers are required everywhere by this patch.

(x32 already requires 3.4 or later, so is unaffected by this patch.)

As usual for such a change, this patch only changes the configure
scripts and associated documentation.  The intent is to follow up with
removal of dead __LINUX_KERNEL_VERSION conditionals.  Each __ASSUME_*
or other macro that becomes dead can then be removed independently.

Tested for x86_64 and x86.

	* sysdeps/unix/sysv/linux/configure.ac (LIBC_LINUX_VERSION):
	Define to 3.2.0.
	(arch_minimum_kernel): Likewise.
	* sysdeps/unix/sysv/linux/configure: Regenerated.
	* sysdeps/unix/sysv/linux/i386/configure.ac (arch_minimum_kernel):
	Define to 2.6.32.
	* sysdeps/unix/sysv/linux/i386/configure: Regenerated.
	* sysdeps/unix/sysv/linux/x86_64/64/configure.ac
	(arch_minimum_kernel): Define to 2.6.32.
	* sysdeps/unix/sysv/linux/x86_64/64/configure: Regenerated.
	* README: Document Linux 3.2 requirement.
	* manual/install.texi (Linux): Document Linux 3.2 headers
	requirement.
	* INSTALL: Regenerated.
2016-02-24 17:15:12 +00:00
..
i686 Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
i786 Move remaining nptl/sysdeps/unix/sysv/linux/i386/ files. 2014-05-14 13:37:40 -07:00
____longjmp_chk.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
_exit.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
alphasort64.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
arch-fork.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
brk.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
c++-types.data x86: Move abilist files out of nptl/ subdirectories. 2014-05-14 15:45:23 -07:00
clone.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
configure Require Linux 3.2 except on x86 / x86_64, 3.2 headers everywhere. 2016-02-24 17:15:12 +00:00
configure.ac Require Linux 3.2 except on x86 / x86_64, 3.2 headers everywhere. 2016-02-24 17:15:12 +00:00
dl-librecon.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
dl-procinfo.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
dl-sysdep.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
fcntl.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
fxstat.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
fxstatat.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
get_clockfreq.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
getcontext.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
getdents64.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
getmsg.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
getrlimit64.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
gettimeofday.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
glob64.c
Implies NPTL is no longer an add-on! 2014-07-07 09:29:06 -07:00
init-first.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
kernel-features.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
ld.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
ldconfig.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
libanl.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libBrokenLocale.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libc-do-syscall.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
libc-lowlevellock.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
libc.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libcrypt.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libdl.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libm.abilist Fix lgamma setting signgam for ISO C (bug 15421). 2015-11-20 22:49:59 +00:00
libnsl.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libpthread.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libresolv.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
librt.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libthread_db.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libutil.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
lll_timedlock_wait.c Move sysdeps/unix/sysv/linux/i386/i486/*.? to i386 2015-09-30 10:12:44 -07:00
lll_timedwait_tid.c Move sysdeps/unix/sysv/linux/i386/i486/*.? to i386 2015-09-30 10:12:44 -07:00
localplt.data Support PLT and GOT references in local PIC check 2015-10-14 06:00:02 -07:00
lockf64.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
lowlevellock.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
lowlevellock.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
lowlevelrobustlock.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
lxstat.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
makecontext.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
Makefile Apply -fomit-frame-pointer only to .o/.os files 2015-10-21 09:05:01 -07:00
mmap.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
olddirent.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
oldgetrlimit64.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
posix_fadvise64.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
profil-counter.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
pthread_cond_broadcast.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
pthread_cond_signal.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
pthread_cond_timedwait.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
pthread_cond_wait.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
putmsg.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
readdir64_r.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
readdir64.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
readelflib.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
register-dump.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
scandir64.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
setcontext.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
setegid.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
seteuid.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
setgid.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
setgroups.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
setregid.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
setresgid.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
setresuid.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
setreuid.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
setuid.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
shlib-versions Clean up gnu/lib-names.h generation (bug 14171). 2014-09-26 17:33:04 +00:00
sigaction.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
sigcontextinfo.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
smp.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
swapcontext.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
syscall.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
syscalls.list Fix linux personality syscall wrapper 2015-12-31 00:17:48 +00:00
sysdep-cancel.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
sysdep.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
sysdep.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
time.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
ucontext_i.sym
Versions
versionsort64.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
vfork.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
xstat.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00