Commit Graph

90 Commits

Author SHA1 Message Date
Martin Sebor
a82a3db950 Attempting to install glibc configured with --prefix=/usr into
a non-standard directory specified by the prefix make variable
fails with an error.  Since this is an unsupported use case,
this change makes make install fail early and with a descriptive
error message when either the prefix or the exec_prefix make
variable is overridden on the command line.
2015-06-12 13:15:57 -06:00
Andrew Senkevich
2193311288 Start of series of patches with x86_64 vector math functions.
Here is implementation of cos containing SSE, AVX, AVX2 and AVX512
versions according to Vector ABI which had been discussed in
<https://groups.google.com/forum/#!topic/x86-64-abi/LmppCfN1rZ4>.

Vector math library build and ABI testing enabled by default for x86_64.

    * sysdeps/x86_64/fpu/Makefile: New file.
    * sysdeps/x86_64/fpu/Versions: New file.
    * sysdeps/x86_64/fpu/svml_d_cos_data.S: New file.
    * sysdeps/x86_64/fpu/svml_d_cos_data.h: New file.
    * sysdeps/x86_64/fpu/svml_d_cos2_core.S: New file.
    * sysdeps/x86_64/fpu/svml_d_cos4_core.S: New file.
    * sysdeps/x86_64/fpu/svml_d_cos4_core_avx.S: New file.
    * sysdeps/x86_64/fpu/svml_d_cos8_core.S: New file.
    * sysdeps/x86_64/fpu/svml_d_wrapper_impl.h: New file.
    * sysdeps/x86_64/fpu/multiarch/svml_d_cos2_core.S: New file.
    * sysdeps/x86_64/fpu/multiarch/svml_d_cos2_core_sse4.S: New file.
    * sysdeps/x86_64/fpu/multiarch/svml_d_cos4_core.S: New file.
    * sysdeps/x86_64/fpu/multiarch/svml_d_cos4_core_avx2.S: New file.
    * sysdeps/x86_64/fpu/multiarch/svml_d_cos8_core.S: New file.
    * sysdeps/x86_64/fpu/multiarch/svml_d_cos8_core_avx512.S: New file.
    * sysdeps/x86_64/fpu/multiarch/Makefile (libmvec-sysdep_routines): Added
    build of SSE, AVX2 and AVX512 IFUNC versions.
    * sysdeps/x86/fpu/bits/math-vector.h: Added SIMD declaration for cos.
    * math/bits/mathcalls.h: Added cos declaration with __MATHCALL_VEC.
    * sysdeps/x86_64/configure.ac: Options for libmvec build.
    * sysdeps/x86_64/configure: Regenerated.
    * sysdeps/x86_64/sysdep.h (cfi_offset_rel_rsp): New macro.
    * sysdeps/unix/sysv/linux/x86_64/libmvec.abilist: New file.
    * manual/install.texi (Configuring and compiling): Document
    --disable-mathvec.
    * INSTALL: Regenerated.
    * NEWS: Mention addition of libmvec and x86_64 vector cos.
2015-06-09 14:25:49 +03:00
Roland McGrath
4acc27ed0a Document test-wrapper-env-only in INSTALL. 2015-03-06 10:59:15 -08:00
Carlos O'Donell
04cb913ddf glibc 2.21 pre-release update.
Update all translations.

Update contributions in the manual.

Update installation notes with information about newest working tools.

Reconfigure using exactly autoconf 2.69.

Regenerate INSTALL.
2015-02-05 23:14:38 -05:00
Carlos O'Donell
a8db092ec0 Regenerate INSTALL. 2015-01-20 22:25:38 -05:00
Will Newton
cc8623f196 Require bison 2.7 or newer for regenerating intl/plural.y
The merge of the latest gettext code introduced changes to the yacc
parser source that are incompatible with versions of bison older
than 2.7. Add a configure check for the appropriate versions and
document the requirement in INSTALL.

ChangeLog:

2014-12-22  Will Newton  <will.newton@linaro.org>

	* manual/install.texi: Document that we require bison 2.7
	or above.
	* INSTALL: Regenerate.
	* configure.ac: Use AC_CHECK_PROG_VER instead of
	AC_PATH_PROG when checking for bison and check for
	version 2.7 or above.
	* configure: Regenerate.
2014-12-22 11:57:40 +00:00
Will Newton
3a12c70f13 Bump required version of texinfo to 4.7
It seems we require texinfo 4.7 for the --plaintext option, so
document that and check for the correct version in configure.

ChangeLog:

2014-12-15  Will Newton  <will.newton@linaro.org>

	* manual/install.texi: Bump required version of texinfo
	to 4.7 from 4.5.
	* INSTALL: Regenerated.
	* configure.ac: Check for makeinfo version 4.7 and above.
	* configure: Regenerated.
2014-12-15 08:59:31 +00:00
Joseph Myers
a4ecc9eb9b Use -Werror by default, add --disable-werror.
As discussed starting at
<https://sourceware.org/ml/libc-alpha/2014-11/msg00323.html>, this
patch makes the glibc build use -Werror by default to avoid
accidentally adding new warnings to the build.  The configure option
--disable-werror can be used to disable this.

-Wno-error=undef is temporarily used because the build isn't clean
regarding -Wundef warnings.  The idea is that once the remaining
-Wundef warnings have been cleaned up (in at least one configuration),
-Wno-error=undef will be removed.

I get a clean build and test on x86_64 (GCC 4.9 branch) with this
patch.  The expectation is that this may well break the build for some
other configurations, and people seeing such breakage should make
appropriate fixes to fix or suppress the warnings for their
configurations.  In some cases that may involve using pragmas as the
right fix (I think that will be right for the -Wno-inline issue for
MIPS I referred to in
<https://sourceware.org/ml/libc-alpha/2012-11/msg00798.html>, for
example), in some cases -Wno-error in sysdeps makefiles (__restore_rt
in MIPS sigaction, for example), in some cases substantive fixes for
the warnings.

Note that if, with a view to listing all the warnings then fixing them
all, you just look for "warning:" in output from building and testing
with --disable-werror, you'll see lots of warnings from the linker
about functions such as tmpnam.  Those warnings can be ignored - only
compiler warnings are relevant to -Werror, not linker warnings.

	* configure.ac (--disable-werror): New configure option.
	(enable_werror): New AC_SUBST.
	* configure: Regenerated.
	* config.make.in (enable-werror): New variable.
	* Makeconfig [$(enable-werror) = yes] (+gccwarn): Add -Werror
	-Wno-error=undef.
	(+gccwarn-c): Do not use -Werror=implicit-function-declaration.
	* manual/install.texi (Configuring and compiling): Document
	--disable-werror.
	* INSTALL: Regenerated.
	* debug/Makefile (CFLAGS-tst-chk1.c): Add -Wno-error.
	(CFLAGS-tst-chk2.c): Likewise.
	(CFLAGS-tst-chk3.c): Likewise.
	(CFLAGS-tst-chk4.cc): Likewise.
	(CFLAGS-tst-chk5.cc): Likewise.
	(CFLAGS-tst-chk6.cc): Likewise.
	(CFLAGS-tst-lfschk1.c): Likewise.
	(CFLAGS-tst-lfschk2.c): Likewise.
	(CFLAGS-tst-lfschk3.c): Likewise.
	(CFLAGS-tst-lfschk4.cc): Likewise.
	(CFLAGS-tst-lfschk5.cc): Likewise.
	(CFLAGS-tst-lfschk6.cc): Likewise.
2014-12-10 01:14:48 +00:00
Joseph Myers
4863355ad5 Require GCC 4.6 or later to build glibc.
As discussed in the thread starting at
<https://sourceware.org/ml/libc-alpha/2014-10/msg00792.html>, and
continuing into November, this patch increases the minimum GCC version
for building glibc to 4.6 (there seemed to be no clear consensus for
4.7).  In particular, this allows us to use #pragma GCC diagnostic for
fine-grained warning control with -Werror (subject to establishing a
suitable policy for that use).  The documentation has a statement, as
requested, about the most recent GCC version tested for building
glibc, and I've updated <https://sourceware.org/glibc/wiki/Release> to
refer to updating that statement.  A NEWS entry is added for this
change, although previous such changes didn't get them.

Tested for x86_64 (testsuite, and that installed shared libraries are
unchanged by this patch).

	* configure.ac (libc_cv_compiler_ok): Require GCC 4.6 or later.
	* configure: Regenerated.
	* manual/install.texi (Tools for Compilation): Document a
	requirement of GCC 4.6 or later and that GCC 4.9 is the newest
	compiler verified to work.
	* INSTALL: Regenerated.
2014-11-14 18:00:34 +00:00
Andrew Senkevich
bd80507166 Update minimal required bunutils version to 2.22 2014-11-10 11:16:46 -08:00
Joseph Myers
f3f5d89569 Update autoconf version requirement in install.texi.
I noticed that install.texi was out of date with regard to the actual
autoconf version requirement for regenerating configure scripts.  This
patch updates the documentation.

	* manual/install.texi (Tools for Compilation): Update autoconf
	version requirements.
	* INSTALL: Regenerated.
2014-10-31 21:49:35 +00:00
Joseph Myers
686554bff6 Remove redundant C locale settings.
Various glibc build / install / test code has C locale settings that
are redundant with LC_ALL=C.

LC_ALL takes precedence over LANG, so anywhere that sets LC_ALL=C
(explicitly, or through it being in the default environment for
running tests) does not need to set LANG=C.  LC_ALL=C also takes
precedence over LANGUAGE, since

2001-01-02  Ulrich Drepper  <drepper@redhat.com>

	* intl/dcigettext.c (guess_category_value): Rewrite so that LANGUAGE
	value is ignored if the selected locale is the C locale.
	* intl/tst-gettext.c: Set locale for above change.
	* intl/tst-translit.c: Likewise.

and so settings of LANGUAGE=C are also redundant when LC_ALL=C is
set.  One test also had LC_ALL=C in its -ENV setting, although it's
part of the default environment used for tests.

This patch removes the redundant settings.  It removes a suggestion in
install.texi of setting LANGUAGE=C LC_ALL=C for "make install"; the
Makefile.in target "install" already sets LC_ALL_C so there's no need
for the user to set it (and nor should there be any need for the user
to set it).

If some build machine tool used by "make install" uses a version of
libintl predating that 2001 change, and the user has LANGUAGE set, the
removal of LANGUAGE=C from the Makefile.in "install" rule could in
principle affect the user's installation.  However, I don't think we
need to be concerned about pre-2001 build tools.

Tested x86_64.

	* Makefile (install): Don't set LANGUAGE.
	* Makefile.in (install): Likewise.
	* assert/Makefile (test-assert-ENV): Remove variable.
	(test-assert-perr-ENV): Likewise.
	* elf/Makefile (neededtest4-ENV): Likewise.
	* iconvdata/Makefile ($(inst_gconvdir)/gconv-modules)
	[$(cross-compiling) = no]: Don't set LANGUAGE.
	* io/ftwtest-sh (LANG): Remove variable.
	* libio/Makefile (tst-widetext-ENV): Likewise.
	* manual/install.texi (Running make install): Don't refer to
	environment settings for make install.
	* INSTALL: Regenerated.
	* nptl/tst-tls6.sh: Don't set LANG.
	* posix/globtest.sh (LANG): Remove variable.
	* string/Makefile (tester-ENV): Likewise.
	(inl-tester-ENV): Likewise.
	(noinl-tester-ENV): Likewise.
	* sysdeps/s390/s390-64/Makefile ($(inst_gconvdir)/gconv-modules)
	[$(cross-compiling) = no]: Don't set LANGUAGE.
	* timezone/Makefile (build-testdata): Use $(built-program-cmd)
	without explicit environment settings.

localedata/ChangeLog:
	* tst-fmon.sh: Don't set LANGUAGE.
	* tst-locale.sh: Likewise.
2014-06-07 19:58:36 +00:00
Joseph Myers
8540f6d2a7 Don't require test wrappers to preserve environment variables, use more consistent environment.
One wart in the original support for test wrappers for cross testing,
as noted in
<https://sourceware.org/ml/libc-alpha/2012-10/msg00722.html>, is the
requirement for test wrappers to pass a poorly-defined set of
environment variables from the build system to the system running the
glibc under test.  Although some variables are passed explicitly via
$(test-wrapper-env), including LD_* variables that simply can't be
passed implicitly because of the side effects they'd have on the build
system's dynamic linker, others are passed implicitly, including
variables such as GCONV_PATH and LOCPATH that could potentially affect
the build system's libc (so effectively relying on any such effects
not breaking the wrappers).  In addition, the code in
cross-test-ssh.sh for preserving environment variables is fragile (it
depends on how bash formats a list of exported variables, and could
well break for multi-line variable definitions where the contents
contain things looking like other variable definitions).

This patch moves to explicitly passing environment variables via
$(test-wrapper-env).  Makefile variables that previously used
$(test-wrapper) are split up into -before-env and -after-env parts
that can be passed separately to the various .sh files used in
testing, so those files can then insert environment settings between
the two parts.

The common default environment settings in make-test-out are made into
a separate makefile variable that can also be passed to scripts,
rather than many scripts duplicating those settings (for testing an
installed glibc, it is desirable to have the GCONV_PATH setting on
just one place, so just that one place needs to support it pointing to
an installed sysroot instead of the build tree).  The default settings
are included in the variables such as $(test-program-prefix), so that
if tests do not need any non-default settings they can continue to use
single variables rather than the split-up variables.

Although this patch cleans up LC_ALL=C settings (that being part of
the common defaults), various LANG=C and LANGUAGE=C settings remain.
Those are generally unnecessary and I propose a subsequent cleanup to
remove them.  LC_ALL takes precedence over LANG, and while LANGUAGE
takes precedence over LC_ALL, it only does so for settings other than
LC_ALL=C.  So LC_ALL=C on its own is sufficient to ensure the C
locale, and anything that gets LC_ALL=C does not need the other
settings.

While preparing this patch I noticed some tests with .sh files that
appeared to do nothing beyond what the generic makefile support for
tests can do (localedata/tst-wctype.sh - the makefiles support -ENV
variables and .input files - and localedata/tst-mbswcs.sh - just runs
five tests that could be run individually from the makefile).  So I
propose another subsequent cleanup to move those to using the generic
support instead of special .sh files.

Tested x86_64 (native) and powerpc32 (cross).

	* Makeconfig (run-program-env): New variable.
	(run-program-prefix-before-env): Likewise.
	(run-program-prefix-after-env): Likewise.
	(run-program-prefix): Define in terms of new variables.
	(built-program-cmd-before-env): New variable.
	(built-program-cmd-after-env): Likewise.
	(built-program-cmd): Define in terms of new variables.
	(test-program-prefix-before-env): New variable.
	(test-program-prefix-after-env): Likewise.
	(test-program-prefix): Define in terms of new variables.
	(test-program-cmd-before-env): New variable.
	(test-program-cmd-after-env): Likewise.
	(test-program-cmd): Define in terms of new variables.
	* Rules (make-test-out): Use $(run-program-env).
	* scripts/cross-test-ssh.sh (env_blacklist): Remove variable.
	(help): Do not mention environment variables.  Mention
	--timeoutfactor option.
	(timeoutfactor): New variable.
	(blacklist_exports): Remove function.
	(exports): Remove variable.
	(command): Do not include ${exports}.
	* manual/install.texi (Configuring and compiling): Do not mention
	test wrappers preserving environment variables.  Mention that last
	assignment to a variable must take precedence.
	* INSTALL: Regenerated.
	* benchtests/Makefile (run-bench): Use $(run-program-env).
	* catgets/Makefile ($(objpfx)test1.cat): Use
	$(built-program-cmd-before-env), $(run-program-env) and
	$(built-program-cmd-after-env).
	($(objpfx)test2.cat): Do not specify environment variables
	explicitly.
	($(objpfx)de/libc.cat): Use $(built-program-cmd-before-env),
	$(run-program-env) and $(built-program-cmd-after-env).
	($(objpfx)test-gencat.out): Use $(test-program-cmd-before-env),
	$(run-program-env) and $(test-program-cmd-after-env).
	($(objpfx)sample.SJIS.cat): Do not specify environment variables
	explicitly.
	* catgets/test-gencat.sh: Use test_program_cmd_before_env,
	run_program_env and test_program_cmd_after_env arguments.
	* elf/Makefile ($(objpfx)tst-pathopt.out): Use $(run-program-env).
	* elf/tst-pathopt.sh: Use run_program_env argument.
	* iconvdata/Makefile ($(objpfx)iconv-test.out): Use
	$(test-wrapper-env) and $(run-program-env).
	* iconvdata/run-iconv-test.sh: Use test_wrapper_env and
	run_program_env arguments.
	* iconvdata/tst-table.sh: Do not set GCONV_PATH explicitly.
	* intl/Makefile ($(objpfx)tst-gettext.out): Use
	$(test-program-prefix-before-env), $(run-program-env) and
	$(test-program-prefix-after-env).
	($(objpfx)tst-gettext2.out): Likewise.
	* intl/tst-gettext.sh: Use test_program_prefix_before_env,
	run_program_env and test_program_prefix_after_env arguments.
	* intl/tst-gettext2.sh: Likewise.
	* intl/tst-gettext4.sh: Do not set environment variables
	explicitly.
	* intl/tst-gettext6.sh: Likewise.
	* intl/tst-translit.sh: Likewise.
	* malloc/Makefile ($(objpfx)tst-mtrace.out): Use
	$(test-program-prefix-before-env), $(run-program-env) and
	$(test-program-prefix-after-env).
	* malloc/tst-mtrace.sh: Use test_program_prefix_before_env,
	run_program_env and test_program_prefix_after_env arguments.
	* math/Makefile (run-regen-ulps): Use $(run-program-env).
	* nptl/Makefile ($(objpfx)tst-tls6.out): Use $(run-program-env).
	* nptl/tst-tls6.sh: Use run_program_env argument.  Set LANG=C
	explicitly with each use of ${test_wrapper_env}.
	* posix/Makefile ($(objpfx)wordexp-tst.out): Use
	$(test-program-prefix-before-env), $(run-program-env) and
	$(test-program-prefix-after-env).
	* posix/tst-getconf.sh: Do not set environment variables
	explicitly.
	* posix/wordexp-tst.sh: Use test_program_prefix_before_env,
	run_program_env and test_program_prefix_after_env arguments.
	* stdio-common/tst-printf.sh: Do not set environment variables
	explicitly.
	* stdlib/Makefile ($(objpfx)tst-fmtmsg.out): Use
	$(test-program-prefix-before-env), $(run-program-env) and
	$(test-program-prefix-after-env).
	* stdlib/tst-fmtmsg.sh: Use test_program_prefix_before_env,
	run_program_env and test_program_prefix_after_env arguments.
	Split $test calls into $test_pre and $test.
	* timezone/Makefile (build-testdata): Use
	$(built-program-cmd-before-env), $(run-program-env) and
	$(built-program-cmd-after-env).

localedata/ChangeLog:
	* Makefile ($(addprefix $(objpfx),$(CTYPE_FILES))): Use
	$(built-program-cmd-before-env), $(run-program-env) and
	$(built-program-cmd-after-env).
	($(objpfx)sort-test.out): Use $(test-program-prefix-before-env),
	$(run-program-env) and $(test-program-prefix-after-env).
	($(objpfx)tst-fmon.out): Use $(run-program-prefix-before-env),
	$(run-program-env) and $(run-program-prefix-after-env).
	($(objpfx)tst-locale.out): Use $(built-program-cmd-before-env),
	$(run-program-env) and $(built-program-cmd-after-env).
	($(objpfx)tst-trans.out): Use $(run-program-prefix-before-env),
	$(run-program-env), $(run-program-prefix-after-env),
	$(test-program-prefix-before-env) and
	$(test-program-prefix-after-env).
	($(objpfx)tst-ctype.out): Use $(test-program-cmd-before-env),
	$(run-program-env) and $(test-program-cmd-after-env).
	($(objpfx)tst-wctype.out): Likewise.
	($(objpfx)tst-langinfo.out): Likewise.
	($(objpfx)tst-langinfo-static.out): Likewise.
	* gen-locale.sh: Use localedef_before_env, run_program_env and
	localedef_after_env arguments.
	* sort-test.sh: Use test_program_prefix_before_env,
	run_program_env and test_program_prefix_after_env arguments.
	* tst-ctype.sh: Use tst_ctype_before_env, run_program_env and
	tst_ctype_after_env arguments.
	* tst-fmon.sh: Use run_program_prefix_before_env, run_program_env
	and run_program_prefix_after_env arguments.
	* tst-langinfo.sh: Use tst_langinfo_before_env, run_program_env
	and tst_langinfo_after_env arguments.
	* tst-locale.sh: Use localedef_before_env, run_program_env and
	localedef_after_env arguments.
	* tst-mbswcs.sh: Do not set environment variables explicitly.
	* tst-numeric.sh: Likewise.
	* tst-rpmatch.sh: Likewise.
	* tst-trans.sh: Use run_program_prefix_before_env,
	run_program_env, run_program_prefix_after_env,
	test_program_prefix_before_env and test_program_prefix_after_env
	arguments.
	* tst-wctype.sh: Use tst_wctype_before_env, run_program_env and
	tst_wctype_after_env arguments.
2014-06-06 22:19:27 +00:00
Joseph Myers
d0f5b3f851 Increase minimum Linux kernel version to 2.6.32.
This patch increases the minimum Linux kernel version for glibc to
2.6.32, as discussed in the thread starting at
<https://sourceware.org/ml/libc-alpha/2014-01/msg00511.html>.

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  <joseph@codesourcery.com>

	[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.
2014-04-30 15:41:03 +00:00
Joseph Myers
d6fe5e582d Do not terminate default test runs on test failure.
This patch is an updated version of
<https://sourceware.org/ml/libc-alpha/2014-01/msg00198.html> and
<https://sourceware.org/ml/libc-alpha/2014-03/msg00180.html>.

Normal practice for software testsuites is that rather than
terminating immediately when a test fails, they continue running and
report at the end on how many tests passed or failed.

The principle behind the glibc testsuite stopping on failure was
probably that the expected state is no failures and so any failure
indicates a problem such as miscompilation.  In practice, while this
is fairly close to true for native testing on x86_64 and x86 (kernel
bugs and race conditions can still cause intermittent failures), it's
less likely to be the case on other platforms, and so people testing
glibc run the testsuite with "make -k" and then examine the logs to
determine whether the failures are what they expect to fail on that
platform, possibly with some automation for the comparison.

This patch switches the glibc testsuite to the normal convention of
not stopping on failure - unless you use stop-on-test-failure=y, in
which case it behaves essentially as it did before (and does not
generate overall test summaries on failure).  Instead, the summary
tests.sum may contain tests that FAILed.  At the end of the test run,
any FAIL or ERROR lines from tests.sum are printed, and then it exits
with error status if there were any such lines.  In addition, build
failures will also cause the test run to stop - this has the
justification that those *do* indicate serious problems that should be
promptly fixed and aren't generally hard to fix (but apart from that,
avoiding the build stopping on those failures seems harder).

Note that unlike the previous patches in this series, this *does*
require people with automation around testing glibc to change their
processes - either to start using tests.sum / xtests.sum to track
failures and compare them with expectations (with or without also
using "make -k" and examining "make" logs to identify build failures),
or else to use stop-on-test-failure=y and ignore the new tests.sum /
xtests.sum mechanism.  (If all you check is the exit status from "make
check", no changes are needed unless you want to avoid test runs
continuing after the first failure.)

Tested x86_64.

	* scripts/evaluate-test.sh: Handle fourth argument to determine
	whether test run should stop on failure.
	* Makeconfig (stop-on-test-failure): New variable.
	(evaluate-test): Pass fourth argument to evaluate-test.sh based on
	$(stop-on-test-failure).
	* Makefile (tests): Give a summary of results from testing and
	exit with failure status if they include an ERROR or FAIL.
	(xtests): Likewise.
	* manual/install.texi (Configuring and compiling): Mention
	stop-on-test-failure=y.
	* INSTALL: Regenerated.
2014-03-14 21:02:40 +00:00
Joseph Myers
acd6e38912 Regenerate INSTALL. 2014-03-13 15:01:15 +00:00
Allan McRae
ee0a148a56 Stop partial menu generation in INSTALL file
The commit d136c6dc resulted in menu text for the "Top" node being added
to the INSTALL file on regeneration.  As the full menu is not displayed
in the plain text file anyway, suppress the menu section completely to
avoid the additional text.

Also regenerate the INSTALL file to commit a small formatting change
introduced in the same commit.
2013-12-19 11:54:06 +10:00
Mike Frysinger
cb8a6dbd17 rename configure.in to configure.ac
Autoconf has been deprecating configure.in for quite a long time.
Rename all our configure.in and preconfigure.in files to .ac.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2013-10-30 17:32:08 +10:00
Allan McRae
cdfc721b8d Update pt_chown sections of the manual
The pt-chown binary is discussed in the "Running make install" section
without clarification of the needed configure option.  Clarify this
and simplfy the discription which is already covered in the "Configuring
and compiling" section.
2013-09-10 14:11:39 +10:00
Joseph Myers
3f2e46a494 Remove --disable-versioning. 2013-09-04 15:25:42 +00:00
Carlos O'Donell
e4608715e6 CVE-2013-2207, BZ #15755: Disable pt_chown.
The helper binary pt_chown tricked into granting access to another
user's pseudo-terminal.

Pre-conditions for the attack:

 * Attacker with local user account
 * Kernel with FUSE support
 * "user_allow_other" in /etc/fuse.conf
 * Victim with allocated slave in /dev/pts

Using the setuid installed pt_chown and a weak check on whether a file
descriptor is a tty, an attacker could fake a pty check using FUSE and
trick pt_chown to grant ownership of a pty descriptor that the current
user does not own.  It cannot access /dev/pts/ptmx however.

In most modern distributions pt_chown is not needed because devpts
is enabled by default. The fix for this CVE is to disable building
and using pt_chown by default. We still provide a configure option
to enable hte use of pt_chown but distributions do so at their own
risk.
2013-07-21 15:39:55 -04:00
Siddhesh Poyarekar
52dfbe137e Fix lock elision help text in INSTALL and configure 2013-07-04 20:33:03 +05:30
Andi Kleen
1717da59ae Add a configure option to enable lock elision and disable by default
Can be enabled with --enable-lock-elision=yes at configure time.
2013-07-02 08:46:55 -07:00
Joseph Myers
cbe7d24bb4 Require GCC 4.4 or later to build glibc. 2013-06-26 23:10:48 +00:00
Siddhesh Poyarekar
a74ca98fdd Regenerate INSTALL file 2013-06-24 21:46:42 +05:30
Carlos O'Donell
e98cdb38ee Remove mention of i386-pc-linux-gnu.
The GNU C Library does not support building for i386
therefore we remove mention of this configuration
from the INSTALL file.
2013-03-12 21:33:38 -04:00
Joseph Myers
8b748aed2a Support --with-pkgversion and --with-bugurl. 2012-11-09 22:13:45 +00:00
Joseph Myers
0eb6951257 Document general use of test-wrapper and test-wrapper-env. 2012-10-31 20:43:54 +00:00
Joseph Myers
df381762dc Add cross-test-ssh.sh. 2012-10-25 19:17:45 +00:00
Joseph Myers
40e45bd5d6 Do not mention old Linux kernel versions in installation documentation. 2012-05-23 12:48:01 +00:00
Andreas Jaeger
e6bdb741d1 Fix INSTALL description for modified files in source dir 2012-05-18 20:30:51 +02:00
Joseph Myers
6a3951a036 Update Texinfo version requirement. 2012-05-16 18:50:39 +00:00
Joseph Myers
a7a93d5086 Clean up glibc manual references to "GNU system" (bug 6911). 2012-03-08 01:27:38 +00:00
Joseph Myers
bec039bcef Require binutils 2.20 or later. 2012-03-01 21:23:57 +00:00
Joseph Myers
1f77f0491f Use Texinfo macros to refer to the GNU C Library within the manual. 2012-02-28 14:44:20 +00:00
Joseph Myers
0e7727f71d Require GCC 4.3 or later. 2012-02-27 23:07:59 +00:00
Joseph Myers
abd923dbf2 Require Linux kernel headers from "make headers_install", >= 2.6.19.1. 2012-02-27 20:52:30 +00:00
Joseph Myers
fb06851d67 Fix stray word in line-wrapped comment in install.texi. 2012-02-21 02:19:14 +00:00
Joseph Myers
f1e86fca4a Update or avoid glibc version numbers in manual. 2012-02-21 01:01:28 +00:00
Joseph Myers
02c4bbad9c Remove documentation of upgrading from libc5. 2012-02-18 18:32:39 +00:00
Ulrich Drepper
0726704533 Fix WS 2012-01-07 11:40:36 -05:00
Ulrich Drepper
bdeba1354b Remove --enable-omitfp support 2012-01-07 11:29:31 -05:00
Ulrich Drepper
10be485191 Remove specific binutils version recommendation in INSTALL file. 2010-10-03 22:30:11 -04:00
Andreas Schwab
70c9476e83 Regenerate INSTALL 2010-05-05 10:24:31 +02:00
Roland McGrath
3858bf28a6 * version.h (VERSION): 2.4
* README.template: Update for 2.4.
	* README: Regenerated.
	* manual/install.texi (Configuring and compiling): Separate build
	directory is mandatory.  Use glibc-2.4 in example.
	Update --enable-add-ons description.
	(Supported Configurations): Remove section.
	* INSTALL: Regenerated.
2006-03-06 10:59:43 +00:00
Roland McGrath
c9dc3f6269 * Makefile (format-me): Use --plaintext --no-number-sections.
* NOTES, INSTALL: Regenerated.
2006-03-01 10:05:04 +00:00
Roland McGrath
4d3f34be79 * manual/install.texi (Tools for Compilation): Require gcc 3.4,
recommend 4.1, advise 4.0 for powerpc64, and note 4.1 required for
	powerpc, s390{x,} with new long double.
	* INSTALL: Regenerated.
2006-02-02 09:20:21 +00:00
Ulrich Drepper
a334319f65 (CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4. 2004-12-22 20:10:10 +00:00
Jakub Jelinek
0ecb606cb6 2.5-18.1 2007-07-12 18:26:36 +00:00
Roland McGrath
80ed68b7bc 2004-08-09 Roland McGrath <roland@frob.com>
* manual/install.texi (Supported Configurations): Replace bug-glibc
	mention with web URL.
	* INSTALL: Regenerated.
	* locale/iso-3166.def: Likewise, in comment.
	* locale/iso-4217.def: Likewise.
	* locale/iso-639.def: Likewise.
	* posix/cpio.h: Remove bug reporting comment.
2004-08-10 05:10:38 +00:00