At the GNU Tools Cauldron 2016, the state of the current tunables
patchset was considered OK with the addition of a way to select the
frontend to be used for the tunables. That is, to avoid being locked
in to one type of frontend initially, it should be possible to build
tunables with a different frontend with something as simple as a
configure switch.
To that effect, this patch enhances the --enable-tunables option to
accept more values than just 'yes' or 'no'. The current frontend (and
default when enable-tunables is 'yes') is called 'valstring', to
select the frontend where a single environment variable is set to a
colon-separated value string. More such frontends can be added in
future.
* Makeconfig (have-tunables): Check for non-negative instead
of positive.
* configure.ac: Add 'valstring' as a valid value for
--enable-tunables.
* configure: Regenerate.
* elf/Makefile (have-tunables): Check for non-negative instead
of positive.
(CPPFLAGS-dl-tunables.c): Define TUNABLES_FRONTEND for
dl-tunables.c.
* elf/dl-tunables.c (GLIBC_TUNABLES): Define only when
TUNABLES_FRONTEND == TUNABLES_FRONTEND_valstring.
(tunables_strdup): Likewise.
(disable_tunables): Likewise.
(parse_tunables): Likewise.
(__tunables_init): Process GLIBC_TUNABLES envvar only when.
TUNABLES_FRONTEND == TUNABLES_FRONTEND_valstring.
* elf/dl-tunables.h (TUNABLES_FRONTEND_valstring): New macro.
(TUNABLES_FRONTEND_yes): New macro, define as
TUNABLES_FRONTEND_valstring by default.
* manual/install.texi: Document new acceptable values for
--enable-tunables.
* INSTALL: Regenerate.
The tunables framework allows us to uniformly manage and expose global
variables inside glibc as switches to users. tunables/README has
instructions for glibc developers to add new tunables.
Tunables support can be enabled by passing the --enable-tunables
configure flag to the configure script. This patch only adds a
framework and does not pose any limitations on how tunable values are
read from the user. It also adds environment variables used in malloc
behaviour tweaking to the tunables framework as a PoC of the
compatibility interface.
* manual/install.texi: Add --enable-tunables option.
* INSTALL: Regenerate.
* README.tunables: New file.
* Makeconfig (CPPFLAGS): Define TOP_NAMESPACE.
(before-compile): Generate dl-tunable-list.h early.
* config.h.in: Add HAVE_TUNABLES.
* config.make.in: Add have-tunables.
* configure.ac: Add --enable-tunables option.
* configure: Regenerate.
* csu/init-first.c (__libc_init_first): Move
__libc_init_secure earlier...
* csu/init-first.c (LIBC_START_MAIN):... to here.
Include dl-tunables.h, libc-internal.h.
(LIBC_START_MAIN) [!SHARED]: Initialize tunables for static
binaries.
* elf/Makefile (dl-routines): Add dl-tunables.
* elf/Versions (ld): Add __tunable_set_val to GLIBC_PRIVATE
namespace.
* elf/dl-support (_dl_nondynamic_init): Unset MALLOC_CHECK_
only when !HAVE_TUNABLES.
* elf/rtld.c (process_envvars): Likewise.
* elf/dl-sysdep.c [HAVE_TUNABLES]: Include dl-tunables.h
(_dl_sysdep_start): Call __tunables_init.
* elf/dl-tunable-types.h: New file.
* elf/dl-tunables.c: New file.
* elf/dl-tunables.h: New file.
* elf/dl-tunables.list: New file.
* malloc/tst-malloc-usable-static.c: New test case.
* malloc/Makefile (tests-static): Add it.
* malloc/arena.c [HAVE_TUNABLES]: Include dl-tunables.h.
Define TUNABLE_NAMESPACE.
(DL_TUNABLE_CALLBACK (set_mallopt_check)): New function.
(DL_TUNABLE_CALLBACK_FNDECL): New macro. Use it to define
callback functions.
(ptmalloc_init): Set tunable values.
* scripts/gen-tunables.awk: New file.
* sysdeps/mach/hurd/dl-sysdep.c: Include dl-tunables.h.
(_dl_sysdep_start): Call __tunables_init.
This adds =all and =strong, with obvious semantics, defaulting to off.
We don't validate the value of the option yet: that's in a later patch.
Nor do we use it for anything at this stage.
We differentiate between 'the compiler understands -fstack-protector'
and 'the user wanted -fstack-protector' so that we can pass
-fno-stack-protector in appropriate places even if the user didn't want
to turn on -fstack-protector for other parts. (This helps us overcome
another existing limitation, that glibc doesn't work with GCCs hacked
to pass in -fstack-protector by default.)
We also arrange to set the STACK_PROTECTOR_LEVEL #define to a value
appropriate for the stack-protection level in use for each file in
particular.
This patch adds pretty printers for the following NPTL types:
- pthread_mutex_t
- pthread_mutexattr_t
- pthread_cond_t
- pthread_condattr_t
- pthread_rwlock_t
- pthread_rwlockattr_t
To load the pretty printers into your gdb session, do the following:
python
import sys
sys.path.insert(0, '/path/to/glibc/build/nptl/pretty-printers')
end
source /path/to/glibc/source/pretty-printers/nptl-printers.py
You can check which printers are registered and enabled by issuing the
'info pretty-printer' gdb command. Printers should trigger automatically when
trying to print a variable of one of the types mentioned above.
The printers are architecture-independent, and were tested on an AMD64 running
Ubuntu 14.04 and an x86 VM running Fedora 24.
In order to work, the printers need to know the values of various flags that
are scattered throughout pthread.h and pthreadP.h as enums and #defines. Since
replicating these constants in the printers file itself would create a
maintenance burden, I wrote a script called gen-py-const.awk that Makerules uses
to extract the constants. This script is pretty much the same as gen-as-const.awk,
except it doesn't cast the constant values to 'long' and is thorougly documented.
The constants need only to be enumerated in a .pysym file, which is then referenced
by a Make variable called gen-py-const-headers.
As for the install directory, I discussed this with Mike Frysinger and Siddhesh
Poyarekar, and we agreed that it can be handled in a separate patch, and shouldn't
block merging of this one.
In addition, I've written a series of test cases for the pretty printers.
Each lock type (mutex, condvar and rwlock) has two test programs, one for itself
and other for its related 'attributes' object. Each test program in turn has a
PExpect-based Python script that drives gdb and compares its output to the
expected printer's. The tests run on the glibc host, which is assumed to have
both gdb and PExpect; if either is absent the tests will fail with code 77
(UNSUPPORTED). For cross-testing you should use cross-test-ssh.sh as test-wrapper.
I've tested the printers on both native builds and a cross build using a Beaglebone
Black running Debian, with the build system's filesystem shared with the board
through NFS.
Finally, I've written a README that explains all this and more.
* INSTALL: Regenerated.
* Makeconfig: Add comments and whitespace to make the control flow
clearer.
(+link-printers-tests, +link-pie-printers-tests, CFLAGS-printers-tests,
installed-rtld-LDFLAGS, built-rtld-LDFLAGS, link-libc-rpath,
link-libc-tests-after-rpath-link, link-libc-printers-tests): New.
(rtld-LDFLAGS, rtld-tests-LDFLAGS, link-libc-tests-rpath-link,
link-libc-tests): Use the new variables as required.
* Makerules ($(py-const)): New rule.
generated: Add $(py-const).
* README.pretty-printers: New file.
* Rules (tests-printers-programs, tests-printers-out, py-env): New.
(others): Depend on $(py-const).
(tests): Depend on $(tests-printers-programs) or $(tests-printers-out),
as required. Pass $(tests-printers) to merge-test-results.sh.
* manual/install.texi: Add requirements for testing the pretty printers.
* nptl/Makefile (gen-py-const-headers, pretty-printers, tests-printers,
CFLAGS-test-mutexattr-printers.c CFLAGS-test-mutex-printers.c,
CFLAGS-test-condattr-printers.c, CFLAGS-test-cond-printers.c,
CFLAGS-test-rwlockattr-printers.c CFLAGS-test-rwlock-printers.c,
tests-printers-libs): Define.
* nptl/nptl-printers.py: New file.
* nptl/nptl_lock_constants.pysym: Likewise.
* nptl/test-cond-printers.c: Likewise.
* nptl/test-cond-printers.py: Likewise.
* nptl/test-condattr-printers.c: Likewise.
* nptl/test-condattr-printers.py: Likewise.
* nptl/test-mutex-printers.c: Likewise.
* nptl/test-mutex-printers.py: Likewise.
* nptl/test-mutexattr-printers.c: Likewise.
* nptl/test-mutexattr-printers.py: Likewise.
* nptl/test-rwlock-printers.c: Likewise.
* nptl/test-rwlock-printers.py: Likewise.
* nptl/test-rwlockattr-printers.c: Likewise.
* nptl/test-rwlockattr-printers.py: Likewise.
* scripts/gen-py-const.awk: Likewise.
* scripts/test_printers_common.py: Likewise.
* scripts/test_printers_exceptions.py: Likewise.
This patch adds a configure check to test if gcc supports attribute ifunc.
The support can either be enabled in <gcc-src>/gcc/config.gcc for one
architecture in general by setting default_gnu_indirect_function variable to yes
or by configuring gcc with --enable-gnu-indirect-function.
The next patch rewrites libc_ifunc macro to use gcc attribute ifunc instead
of inline assembly to generate the IFUNC symbols due to false debuginfo.
If gcc does not support attribute ifunc, the old approach for generating
ifunc'ed symbols is used. Then the debug-information is false. Thus it is
recommended to use a gcc with indirect function support (See notes in INSTALL).
After this patch-series these inline assemblies for ifunc-handling are not
scattered in multiple files but are used only indirect via ifunc-macros
and can simply removed in libc-symbols.h in future.
If glibc is configured with --enable-multi-arch and gcc does not support
attribute ifunc, a configure warning is dumped!
ChangeLog:
* config.h.in (HAVE_GCC_IFUNC): New undef.
* configure.ac: Add check if gcc supports attribute ifunc feature.
* configure: Regenerated.
* manual/install.texi: Add recommendation for gcc with
indirect-function support.
* INSTALL: Regenerated.
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.
This patch implements a requirement of GCC 4.7 or later to build
glibc.
This was discussed in the thread starting at
<https://sourceware.org/ml/libc-alpha/2015-08/msg00851.html>.
Concerns were expressed by Mike and David. At
<https://sourceware.org/ml/libc-alpha/2015-10/msg00453.html> I have
provided a 14-patch series showing in outline the cleanups facilitated
by this version requirement, as requested by Mike (this patch is the
first in that series, with the addition of a NEWS entry). Given the
absence of further concerns or alternative proposals for criteria for
updates to this version requirement as requested in
<https://sourceware.org/ml/libc-alpha/2015-10/msg00065.html>, I am
interpreting this as "absence of sustained opposition" under Carlos's
definition at <https://sourceware.org/glibc/wiki/Consensus> and
proposing this patch for inclusion in glibc. I'd like to remind
people testing with 4.6 that if they move to testing with GCC 5 then
it will probably be about four years before they need to update the
compiler they use to test glibc again.
Although on the principles of time-based updates I think a move to
requiring binutils 2.23 would be reasonable, I'm not currently aware
of any cleanups that would facilitate so am not proposing that at this
time (but would expect to propose a move to requiring binutils 2.24 in
a year's time, as that brings features such as AVX512 support that
should allow some conditionals to be cleaned up). If someone thinks a
move to requiring 2.23 would help clean things up for their
architecture, please speak up. (And in general, I suspect there are
lots of architecture-specific configure tests that could be removed on
the basis of current GCC and binutils version requirements, given how
I've found architecture-independent tests obsolete on the basis of
version requirements going back 20 years.)
Tested for x86_64 and x86 (testsuite, and that installed shared
libraries are unchanged by the patch).
* configure.ac (libc_cv_compiler_ok): Require GCC 4.7 or later.
* configure: Regenerated.
* manual/install.texi (Tools for Compilation): Document
requirement for GCC 4.7 or later.
* INSTALL: Regenerated.
Some distros build+install the timezone tools (zic/zdump/tzselect) outside
of glibc and use the upstream package directly. Add a configure flag to
glibc so they can disable install of those tools.
This allows tests to run & pass regardless of the configure flag. Only
the install of them is impacted.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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>
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.
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.
* configure: Regenerated.
* manual/install.texi (Tools for Compilation): Say 3.2 is required.
(Configuring and compiling): Don't mention older GCC versions any more.
* INSTALL: Regenerated.
* manual/install.texi (Configuring and compiling, Installation,
Running make install, Linux): Linux -> GNU/Linux where appropriate.
* elf/rtld.c (_dl_start_final): Move defn before _dl_start so it can
be inlined. Declare it with always_inline if [DONT_USE_BOOTSTRAP_MAP]
and with noinline otherwise. Remove hack alloca use to prevent
inlining, we can ask for it explicitly nowadays.
2000-08-09 Andreas Jaeger <aj@suse.de>
* configure.in: Change required make versions.
* manual/install.texi (Tools for Compilation): Document required
make version.
(Supported Configurations): Update list of supported
configurations.
* sysdeps/unix/sysv/linux/sys/raw.h (RAW_MAJOR): Added.
1999-09-08 Andreas Jaeger <aj@arthur.rhein-neckar.de>
* manual/install.texi (Configuring and compiling): Mention GCC 2.95.
1999-09-08 Andreas Jaeger <aj@arthur.rhein-neckar.de>
* configure.in: Fix make version test for make 3.77.95 and later
versions.
Based on a patch by Paul D. Smith <psmith@baynetworks.com>.
1999-09-10 Ulrich Drepper <drepper@cygnus.com>
1999-07-25 Jakub Jelinek <jj@ultra.linux.cz>
* sysdeps/sparc/sparc32/sparcv8/Makefile: -mv8 is deprecated, use
-mcpu=v8.
* sysdeps/sparc/sparc32/sparcv9/Makefile: Likewise.
* sysdeps/sparc/sparc64/Makefile: Make %g7 register available for
libc's private use (as assembly routine clobber it anyway).
1999-07-26 Andreas Jaeger <aj@arthur.rhein-neckar.de>
* README.template (configurations): The crypt add-on has a new
ftp site.
* manual/install.texi (Installation): Likewise.
1998-11-09 18:16 Ulrich Drepper <drepper@cygnus.com>
* math/complex.h: Include bits/mathdef.h to get __NO_LONG_DOUBLE_MATH
is needed.
Don't define long double functions if __NO_LONG_DOUBLE_MATH is defined.
Don't define `complex' but instead `_Complex'. The later is the
reserved keyword.
* math/bits/cmathcalls.c: Define _Mdouble_complex_ using _Complex,
not complex.
1998-11-07 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
* manual/libc.texinfo: Remove colon from category name.
* manual/Makefile (dir-add.info): Likewise.
1998-11-07 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
* configure.in: Avoid autoconf bug.
1998-10-28 H.J. Lu <hjl@gnu.org>
* posix/getopt.h: Add "__" to arguments in prototypes.
1998-11-05 H.J. Lu <hjl@gnu.org>
* libio/iofgets.c (_IO_fgets): Don't report error
if something was read in and errno is set to
EAGAIN.
* libio/iofgets_u.c (fgets_unlocked): Likewise.
1998-11-05 Philip Blundell <philb@gnu.org>
* sysdeps/unix/sysv/linux/net/if_packet.h: Don't include kernel
header; it defines too much. Provide a local definition of struct
sockaddr_pkt and a comment advising against its use.
1998-11-06 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
* extra-lib.mk: Avoid empty include list.
1998-11-04 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
* extra-lib.mk: Add support for $(lib)-shared-only-routines.
* elf/Makefile (libdl-routines): Add dlopenold only if doing
versioning.
(libdl-shared-only-routines): New variable.
1998-11-06 Paul Eggert <eggert@twinsun.com>
Don't invoke localtime_r or gmtime_r unless it's the GNU C
library's localtime_r and gmtime_r; there are too many buggy
implementations of localtime_r and gmtime_r out there, and
it's not worth keeping track of all the different bugs.
* time/mktime.c (__EXTENSIONS__): Remove.
(<unistd.h>): No need to include.
Remove.
(my_mktime_localtime_r): Renamed from localtime_r; all uses changed.
Base it on localtime unless _LIBC.
* time/strftime.c (my_strftime_gmtime_r): Renamed from gmtime_r;
all uses changed.
(my_strftime_localtime_r): Renamed from localtime_r; all uses changed.
Base them on localtime/gmtime if not _LIBC.
1998-05-18 Ulrich Drepper <drepper@cygnus.com>
* iconvdata/TESTS: ISO-2022-KR has not really ASCII as a subset
(the designation sequence is disturbing).
1998-03-25 Ulrich Drepper <drepper@cygnus.com>
* glibcbug.in: Create files safely when mktemp is not available.
* sysdeps/unix/sysv/linux/adjtime.c: Make weak alias appear again.
Patch by a sun <asun@saul1.u.washington.edu>.
1998-03-25 Thorsten Kukuk <kukuk@vt.uni-paderborn.de>
* libc.map: Rename getname to getnetname.
1998-03-25 13:35 Ulrich Drepper <drepper@cygnus.com>
* manual/maint.texi: Use supported platform in examples.
* manual/install.texi: Document some installation tips.
1998-03-25 10:56 Ulrich Drepper <drepper@cygnus.com>
* posix/wordexp.c: Fix some memory leaks and makes $* more efficient.
Fix a bug so that it returns an error if a numeric parameter is
unset and WRDE_UNDEF is set.
Patch by Andreas Schwab and Tim Waugh.
* posix/wordexp-test.c: Add new new test.
1998-03-25 Ulrich Drepper <drepper@cygnus.com>
* posix/regex.c (regex_compile): Last patch wasn't entirely
correct. Patch by Alain Magloire <alainm@rcsm.ece.mcgill.ca>.
1998-03-24 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* manual/filesys.texi (Scanning Directory Content): Fix typo.
1998-03-25 09:24 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
* sysdeps/i386/bits/string.h: Fix all assembler statements so that
clobbered registers don't appear as operands.
1997-09-21 03:19 Ulrich Drepper <drepper@cygnus.com>
* libio/libio.h: More libstdc++ cleanups. Define _IO_USE_DTOA if
_G_HAVE_PRINTF_FP is not defined.
* libio/strops.c: Undo patch of 1997-07-08 02:18. Must find a
different solution for the problem.
* misc/search.h [__USE_GNU]: Define comparison_fn_t.
* stdlib/stdlib.h: Define comparison_fn_t only if __COMPAR_FN_T is
not defined.
Fix typo. Pretty print inline functions.
* sysdeps/i386/i486/string.h (__stpcpy_small): Increment __cp not cp.
Patch by HJ Lu <hjl@gnu.ai.mit.edu>.
1997-09-20 16:45 Ulrich Drepper <drepper@cygnus.com>
* hesiod/hesiod.c (hesiod_init): Use __secure_getenv to get
HES_DOMAIN environment variable.
Suggested by Mark Kettenis <kettenis@phys.uva.nl>.
* hesiod/README.hesiod: A bit of information about Hesiod and how
to use it. Written by Mark Kettenis <kettenis@phys.uva.nl>.
1997-09-20 05:15 Ulrich Drepper <drepper@cygnus.com>
* manual/maint.texi: Update requirement list.
* io/ftw.h: Don't use parameter names from global namespace in
prototypes.
* stdlib/strtol.c: If used outside glibc handle broken systems
which have character classification functions which are not 8-bit
clean gracefully. Patch by Bruno Haible <haible@ilog.fr>.
1997-09-19 21:42 David S. Miller <davem@tanya.rutgers.edu>
* sysdeps/unix/sysv/linux/sparc/sparc64/bits/types.h: ssize_t is
a long long int.
1997-09-19 15:12 H.J. Lu <hjl@gnu.ai.mit.edu>
* posix/Makefile (test-srcs): New, set to globtest.
1997-09-20 00:24 Ulrich Drepper <drepper@cygnus.com>
* manual/filesys.texi: Document ftw, nftw and needed data types.
1997-09-19 12:53 H.J. Lu <hjl@gnu.ai.mit.edu>
* sysdeps/i386/i486/bits/string.h: Fix typo.
1997-09-19 14:11 Ulrich Drepper <drepper@cygnus.com>
* io/ftwtest.c (cb): Print level.
* io/ftwtest-sh: Updated for ftwtest.c change.
* string/argz.h (__argz_next): Cast NULL to char * to satisfy C++
compilers.
Reported by Mirko Streckenbach <mirko@ramz.ing.tu-bs.de>.
* catgets/catgets.c (catopen): Correctly allocate string of nlspath.
Reported by Charles C. Fu <ccwf@klab.caltech.edu>.
1997-09-18 13:30 Klaus Espenlaub <kespenla@student.informatik.uni-ulm.de>
* sysdeps/i386/init-first.c: Call __getopt_clean_environment with
additional argument.
* sysdeps/mach/hurd/i386/init-first.c: Likewise.
* sysdeps/mach/hurd/mips/init-first.c: Likewise.
* sysdeps/stub/init-first.c: Likewise.
1997-09-18 03:16 Ulrich Drepper <drepper@cygnus.com>
* manual/search.texi: Document lsearch, lfind, the hsearch and
tsearch functions.
1997-09-18 00:04 Ulrich Drepper <drepper@cygnus.com>
* misc/hsearch_r.c (hsearch_r): Only return error for ENTER action
if the table is full and we *really* have to enter a new entry.
1997-09-17 19:44 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/sparc/sparc32/dl-machine.h (elf_machine_rela): Get rid
of hack for handling flush opcode.
Patch by Richard Henderson <rth@cygnus.com>.
1997-03-16 18:43 Ulrich Drepper <drepper@cygnus.com>
* manual/filesys.texi: Add documentation for scandir and alphasort.
* math/math.c (fpclassify): Correct stupid typos.
* math/libm-test.c: New file. libm test suite by Andreas Jaeger.
* nss/nss_files/files-hosts.c: Add gethostbyname2 imlementation.
* posix/Makefile (routines): Add bsd-getpgrp.
* posix/bsd-getpgrp.c: New file.
* posix/unistd.h [__FAVOR_BSD]: Define macro getpgrp which maps
calls to __bsd_getpgrp.
* sysdeps/generic/getpgrp.c: De-ANSI-declfy.
* sysdeps/i386/huge_val.h: New file. ix87 specific infinity values.
* sysdeps/m68k/huge_val.h: New file. m68k specific infinity values.
* sysdeps/generic/huge_val.h: Remove definition of long double
definition. Make it the same as the double definition.
* sysdeps/libm-i387/e_acos.S: Fix bug in FPU stack handling.
* sysdeps/libm-i387/e_acosf.S: Likewise.
* sysdeps/libm-i387/e_acosl.S: Likewise.
* sysdeps/libm-i387/e_asin.S: Likewise.
* sysdeps/libm-i387/e_asinf.S: Likewise.
* sysdeps/libm-i387/e_asinl.S: Likewise.
* sysdeps/libm-i387/e_exp.S: Likewise.
* sysdeps/libm-i387/e_expf.S: Likewise.
* sysdeps/libm-i387/e_expl.S: Likewise.
* sysdeps/libm-i387/e_scalbn.S: Likewise.
* sysdeps/libm-i387/e_scalbnf.S: Likewise.
* sysdeps/libm-i387/e_scalbnl.S: Likewise.
* sysdeps/libm-i387/e_log.S: Optimize branch code.
* sysdeps/libm-i387/e_logf.S: Likewise.
* sysdeps/libm-i387/e_logl.S: Likewise.
* sysdeps/libm-i387/e_log10.S: Likewise.
* sysdeps/libm-i387/e_log10f.S: Likewise.
* sysdeps/libm-i387/e_log10l.S: Likewise.
* sysdeps/libm-i387/e_pow.S: Major rewrite to handle special cases.
* sysdeps/libm-i387/e_powf.S: Likewise.
* sysdeps/libm-i387/e_powl.S: Likewise.
* sysdeps/libm-i387/e_expm1.S: Change return value for -inf
argument to -1.0.
* sysdeps/libm-i387/e_expm1f.S: Likewise.
* sysdeps/libm-i387/e_expm1l.S: Likewise.
* sysdeps/libm-i387/e_isinfl.c: Return -1 for -inf.
* sysdeps/libm-i387/e_logbl.S: Correct return value. Discard first
stack element after fxtract.
* sysdeps/libm-ieee754/e_atan2l.c: New file. `long double'
implementation for atan2 function.
* sysdeps/libm-ieee754/k_standard.c: Return NAN for libm not in
_SVID_ mode when acos, asin, atan2, log, log10 is called with
argument out of range.
Add new error case for pow(+0,neg).
* sysdeps/libm-ieee754/s_fpclassifyf.c: Correct recognition of
NaN and +-inf.
* sysdeps/libm-ieee754/s_fpclassifyl.c: Mask out explicit leading
digit in stupid 80 bit formats.
* sysdeps/libm-ieee754/s_isinf.c: Rewrite to return -1 for -inf.
* sysdeps/libm-ieee754/s_isinff.c: Likewise.
* sysdeps/libm-ieee754/s_isinfl.c: Likewise.
* sysdeps/libm-ieee754/s_scalbnl.c (huge, tiny): Adapt values for
long double type.
* sysdeps/libm-ieee754/w_atan2.c: Do not raise exception expect when
in SVID mode.
* sysdeps/libm-ieee754/w_atan2f.c: Likewise.
* sysdeps/libm-ieee754/w_atan2l.c: Likewise.
* sysdeps/libm-ieee754/w_pow.c: Distinguish error cases for x is +0
or -0.
* sysdeps/posix/isfdtype.c: Add cast to prevent warning.
* sysdeps/stub/fcntlbits.h: Update copyright.
* sysdeps/unix/bsd/fcntlbits.h: Likewise.
* sysdeps/unix/bsd/bsd4.4/fcntlbits.h: Likewise.
* sysdeps/unix/bsd/sun/sunos4/fcntlbits.h: Likewise.
* sysdeps/unix/bsd/ultrix4/fcntlbits.h: Likewise.
* sysdeps/unix/common/fcntlbits.h: Likewise.
* sysdeps/unix/sysv/fcntlbits.h: Likewise. Define O_FSYNC as alias
of O_SYNC. Add BSD compatibility macros FAPPEND, FFSYNC, FNONBLOCK,
and FNDELAY.
* sysdeps/unix/sysv/irix4/fcntlbits.h: Likewise.
* sysdeps/unix/readdir_r.c: Don't copy whole `struct dirent' record,
only reclen bytes.
* sysdeps/unix/sysv/linux/fcntlbits.h [__USE_GNU]: Add O_READ, O_WRITE
and O_NORW.
* sysdeps/unix/sysv/linux/alpha/fcntlbits.h: Likewise.
* sysdeps/unix/sysv/linux/init-first.h: Add copyright.
* sysdeps/unix/sysv/linux/fxstat.c: New file. Rewrite kernel-level
struct stat to user-level form.
* sysdeps/unix/sysv/linux/lxstat: New file.
* sysdeps/unix/sysv/linux/xstat: New file.
* sysdeps/unix/sysv/linux/kernel_stat.h: Define struct stat used in
kernel.
* sysdeps/unix/sysv/linux/statbuf.h (struct stat): Change definition
to use prescribed types for elements.
(_STAT_VER): Change to value 3.
* sysdeps/unix/sysv/linux/alph/statbuf.h: Likewise.
* sysdeps/unix/sysv/linux/Dist: Add kernel_stat.h.
* sysdeps/unix/sysv/linux/alpha/Dist: Likewise.
* time/Makefile: Correct dependencies for test-tz.
1997-03-16 14:59 Philip Blundell <phil@london.uk.eu.org>
* resolv/netdb.h: Add prototypes for gai_strerror and getnameinfo
(needed for IPv6 basic sockets API).
1997-03-16 15:02 a sun <asun@zoology.washington.edu>
* sysdeps/unix/sysv/linux/net/if_ppp.h: Don't use incompatible
kernel header.
* sysdeps/unix/sysv/linux/net/ppp_defs.h: Likewise.
1997-03-14 17:15 Ulrich Drepper <drepper@cygnus.com>
* db/hash/hash_bigkey.c (__big_delete): Don't call __free_ovflpage
without testing for last_bfp to be NULL.
Reported by fabsoft@fabserver1.zarm.uni-bremen.de.
1997-03-13 11:42 Jim Meyering <meyering@asic.sc.ti.com>
* time/mktime.c (TIME_T_MIN): Work around a bug in Cray C 5.0.3.0.
1997-03-14 04:00 Kurt Garloff <garloff@kg1.ping.de>
* sysdeps/unix/sysv/linux/fcntlbits.h (O_FSYNC): Make alias for O_SYNC.
(FASYNC): Move to __USE_BSD section. Create new macro O_ASYNC.
1997-03-14 02:50 Ulrich Drepper <drepper@cygnus.com>
* nis/nss_nis/nis-hosts.c (_nss_nis_gethostbyname2_r): New
functions. Compare result for correct address type.
(_nss_nis_gethostbyname_r): Use _nss_nis_gethostbyname2_r.
Reported by Mirko Streckenbach <mirko@marian.hil.de>.
1997-02-17 01:40 Zlatko Calusic <zcalusic@srce.hr>
* time/strptime.c (recursive): Return rp to caller.
(strptime_internal): First check for long names, then abbreviated
(month & weekday).
1997-03-10 19:44 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* Makeconfig: Remove useless definitions of ASFLAGS-%.
* config.make.in (ASFLAGS-.so): Remove.
* configure.in: Don't substitute ASFLAGS_SO.
* sysdeps/sparc/configure.in: Remove file.
* sysdeps/sparc/Makefile (ASFLAGS-.so): Define.
1997-03-11 17:00 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* time/strptime.c (strptime_internal) [case 'Y']: Always subtract
1900 from year, regardless of century.
1997-03-12 05:43 Ulrich Drepper <drepper@cygnus.com>
* stdlib/strtod.c (_tens_in_limb) [BITS_PER_MP_LIMB > 32]: Make
all numbers unsigned to make buggy gccs happy.
Patch by Bryan W. Headley <bheadley@interaccess.com>.
* sysdeps/unix/sysv/linux/netinet/ip.h: Add backward-compatibility
definitions. Patch by a sun <asun@zoology.washington.edu>.
Pretty print header.
* Makerules (build-shlib): Also create symlink if library is versioned.
based on a patch by H.J. Lu <hjl@gnu.ai.mit.edu>.
Remove special rule to libc.so symlink.
1997-03-11 20:16 Andreas Jaeger <aj@arthur.pfalz.de>
* manual/math.texi (Domain and Range Errors): Change descriptions
according to recent changes for ISO C 9X.
1997-03-11 22:39 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/libm-ieee754/k_standard.c (__kernel_standard): Correct
return values for acos, asin, and atan2.
Reported by Andreas Jaeger <aj@arthur.pfalz.de>.
1997-03-10 18:16 Thorsten Kukuk <kukuk@vt.uni-paderborn.de>
* ypclnt.c (__yp_bind): Fix possible buffer overflow.
1997-03-10 18:06 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
* dirent/alphasort.c (alphasort): Interpret arguments as pointers
to pointers to directory entries so that alphasort really can be
used as argument for scandir.
1997-03-09 23:33 Andreas Jaeger <aj@arthur.pfalz.de>
* string/strdup.c: Declare memcpy if !(_LIBC || STDC_HEADERS)
instead of strcpy.
1997-03-10 03:34 Ulrich Drepper <drepper@cygnus.com>
* catgets/catgets.c (catopen): Always add NLSPATH to search path for
catalogs, not only if the envvar NLSPATH is not available.
Reported by Andries.Brouwer@cwi.nl.
1997-03-10 02:46 Ulrich Drepper <drepper@cygnus.com>
* Makeconfig (localtime-file): Don't define using installation
directory.
(inst_localtime-file): New variable.
* time/Makefile (installed-localtime-file): Use inst_localtime-file.
Reported by Edward Seidl <seidl@janed.com>.
1997-03-10 02:31 H.J. Lu <hjl@gnu.ai.mit.edu>
* time/Makefile: Add source files to dependencies for test data.
1997-03-09 22:53 Thorsten Kukuk <kukuk@weber.uni-paderborn.de>
* nis/nss_nis/nis-ethers.c: Don't ignore return value of yp_all.
* nis/nss_nis/nis-proto.c: Likewise.
* nis/nss_nis/nis-rpc.c: Likewise.
* nis/nss_nis/nis-service.c: Likewise.
1997-03-08 14:37 Miguel de Icaza <miguel@nuclecu.unam.mx>
* sysdeps/sparc/dl-machine.h (elf_machine_rela): Upgrade to
versioning; Added missing R_SPARC_WDISP30 handling.
(RTLD_START): Implement it.
* sysdeps/unix/sysv/linux/sparc/brk.c: Fix.
* sysdeps/unix/sysv/linux/sparc/start.c: Startup code for
Linux/SPARC.
1997-03-02 18:06 Miguel de Icaza <miguel@nuclecu.unam.mx>
* sysdeps/sparc/dl-machine.h (RTLD_START): Make arg as expected by
the dynamic linker instead of having a new conditional define.
Thanks to Richard Henderson for pointing this out.
* elf/rtld.c: Remove usage of ELF_ADJUST_ARG.
1997-03-20 20:44 Thomas Bushnell, n/BSG <thomas@gnu.ai.mit.edu>
* sysdeps/mach/hurd/euidaccess.c: Define as __euidaccess and make
euidaccess weak alias.
1997-03-07 10:30 Thomas Bushnell, n/BSG <thomas@gnu.ai.mit.edu>
* stdio-common/printf_fphex.c (MIN): New macro.
* sysdeps/generic/netinet/in.h: Include <sys/types.h>.
* sysdeps/generic/sys/mman.h (msync): Mention third arg.
* sysdeps/generic/netinet/in.h: Add definitions for IPv6 basic
API. (See change by Philip Blundell on Feb 16, 1997.)
1997-03-05 10:40 Thomas Bushnell, n/BSG <thomas@gnu.ai.mit.edu>
* hurd/hurd.h (vpprintf): Include <stdarg.h>. New declaration.
* hurd/set-host.c (_hurd_set_host_config): Cast second arg to
__file_name_split.
* mach/mach_error.c (mach_error_string_int): Give full prototype.
* mach/errstring.c (mach_error_string_int): Likewise.
* mach/error_compat.c (__mach_error_map_compat): Likewise.
* hurd/vpprintf.c (pwrite, vpprintf): Likewise.
* stdio/vasprintf.c (vasprintf): Likewise.
* mach/mach/mach_traps.h: Include <mach/kern_return.h>.
* mach/spin-solid.c: Include <mach/mach_traps.h>.
* mach/spin-solid.c (__spin_lock_solid): Provide arg to
swtch_pri.
* mach/mach_init.c: Include <mach/mig_support.h>.
* mach/mach_error.h (mach_error_string, mach_error,
mach_error_type): Always provide prototypes.
* mach/mach/error.h (mach_error_fn_t): Comment out declaration; it
appears to be entirely unused dead code.
* stdio/stdio.h (freopen): Fix spelling error.
1997-03-02 13:38 Miles Bader <miles@gnu.ai.mit.edu>
* string/argz.h (__need_error_t): New macro, before including <errno.h>
[!__const] (__const): New macro.
[!__error_t_defined] (error_t): New typedef.
* sysdeps/generic/socketbits.h: Add PF_FILE as synonym for PF_LOCAL
* sysdeps/unix/sysv/linux/socketbits.h: Likewise.
Mon Oct 21 01:32:36 1996 Ulrich Drepper <drepper@cygnus.com>
* elf/rtld.c (dl_main): Move initialization of `_dl_starting_up'
to beginning of function. So libc functions can use this flag.
* sysdeps/generic/_strerror.c: Don't use dgettext for message
translation while `_dl_starting_up' is nonzero.
* elf/dl-deps.c (_dl_map_object_deps): Add new parameter
TRACE_MODE.
Pass parameter value to _dl_map_object.
* elf/dl-load (_dl_map_object): Add new parameter TRACE_MODE.
If TRACE_MODE is nonzero don#t signal error when shared lib
is not found. Instead create fake entry for link map.
* dl-open.c (dl-open): Pass 0 for new argument to _dl_map_object.
* dl-runtime.c (_dl_object_relocation_scope): Pass 0 for new
argument to _dl_map_object_deps.
* elf/link.h: Add new parameter TRACE_MODE for prototypes of
_dl_map_object and _dl_map_object_deps.
* elf/rtld.c (dl_main): Pass 0 for new argument to _dl_map_object
and _dl_map_object_deps.
When mode == trace test for l_opencount == 0 before printing
link information since this means the lib is not found.
Sun Oct 20 22:19:58 1996 Ulrich Drepper <drepper@cygnus.com>
* rpm/template: Add INSTALL to %doc line to follow copyright
restrictions which demand the distribution of the copyright
messages in INSTALL even for binary distributions.
* features.h: Rename to...
* features.h.in: ...this. Change value of __GNU_LIBRARY__ to 2
(for major version numberof package) and add __GNU_LIBRARY_MINOR__
and __GNU_LIBRARY_INTERFACE__.
* Makefile ($(objpfx)features.h): New rule to generate features.h
from template features.h.in.
* sysdeps/unix/sysv/linux/getsysstats.c: Include <paths.h>.
Sun Oct 20 00:00:13 1996 Richard Henderson <rth@tamu.edu>
* locale/programs/linereader.c (lr_open): Cast away const before free.
(lr_close): Likewise.
* misc/mntent.h: Move _PATH_MNTTAB & _PATH_MOUNTED to paths.h.
* misc/paths.h: Move to ...
* sysdeps/generic/paths.h: ... here.
* paths.h: Remove.
* sysdeps/unix/sysv/linux/paths.h: New file. Correct _PATH_STDPATH,
_PATH_MAILDIR, _PATH_MOUNTED, _PATH_UNIX to comply with the fsstd.
* nss/nss_db/db-netgrp.h: Include <string.h>.
* stdio-common/psignal.c: De-ansidecl-ify. Allow NULL entries in
_sys_siglist, which result in the "Unknown signal" message.
* string/strsignal.c: Likewise.
* sysdeps/generic/Makefile [stdio-common]: If $(inhibit-siglist),
don't auto-generate siglist.c.
* sysdeps/unix/sysv/linux/Makefile [stdio-common]: Set inhibit-siglist.
* sysdeps/unix/sysv/linux/siglist.c: New file. Not needing to
autogenerate makes bootstrapping and cross-compiling much easier.
* sysdeps/unix/sysv/linux/siglist.h: New file.
* stdlib/longlong.h: Prototype __udiv_qrnnd.
* sysdeps/unix/sysv/linux/alpha/Makefile (sysdep_headers): Remove
sys/io.h. It is already added in .../linux/Makefile.
* sysdeps/unix/sysv/linux/alpha/sigaction.h: New file.
* sysdeps/unix/sysv/linux/alpha/signum.h: New file.
* sysdeps/unix/sysv/linux/alpha/statbuf.h: New file.
Sun Oct 20 17:17:12 1996 Ulrich Drepper <drepper@cygnus.com>
Add implementation of POSIX.1g function getaddrinfo.
* posix/Makefile (routines): Add getaddrinfo.
* sysdeps/posix/getaddrinfo.c.: New file. Add implementation by
Craig Metz.
* sysdeps/stub/getaddrinfo.c: New file. Stub implementation.
* resolv/netdb.h [__USE_POSIX]: Add getaddrinfo prototypes and
related constants and structures.
Sun Oct 20 13:02:34 1996 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/stub/lockfile.c: Rename functions to __internal_*.
Make all old names weak alises so that they can be replaced
by libpthread.
* stdio-common/vfprintf.c: Only declare __flockfile and __funlockfile
for !USE_IN_LIBIO.
[USE_IN_LIBIO]: Call _IO_flockfile and _IO_funlockfile instead of
__flockfile and __funlockfile.
Reported by NIIBE Yutaka.
* crypt/md5.c: Change form of copyright message according to GNITS
rules.
Add warning for requirement on RESBUF parameter for `md5_finish_ctx'
and `md5_read_ctx' function.
* crypt/md5.h: Likewise.
* grp/testgrp.c: Don't use perror for error cases since getgr* and
getpw* functions do not return usable error codes.
Sun Oct 19 23:05:32 1996 Jim Meyering <meyering@asic.sc.ti.com>
* crypt/md5.c (md5_process_bytes): Used casting for pointer
arithmetic.
Sun Oct 20 03:53:23 1996 Ulrich Drepper <drepper@cygnus.com>
* sunrpc/Makefile (others): Remove portmap here, too.
