The log filters have supported the use of a "+" before the source match
string to request that a stack trace be emitted for every log message:
commit 548563956e
Author: Daniel P. Berrange <berrange@redhat.com>
Date: Wed May 9 15:18:56 2012 +0100
Allow stack traces to be included with log messages
Sometimes it is useful to see the callpath for log messages.
This change enhances the log filter syntax so that stack traces
can be show by setting '1:+NAME' instead of '1:NAME'.
With the huge & ever increasing number of logging statements per file,
this will be incredibly verbose and have a major performance penalty.
This makes the feature impractical to use widely and as such it is not
worth the code maint cost.
Removing this seldom used feature allows us to drop the 'execinfo'
module in gnulib which provides the backtrace() function which doesn't
exist on non-Linux.
Users who want to get stack traces of parts of libvirt can use GDB,
or systemtap for live tracing with minimal perf impact.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The usleep function was missing on older mingw versions, but we can rely
on it existing everywhere these days. It may only support times upto 1
second in duration though, so we'll prefer to use g_usleep instead.
The commandhelper program is not changed since that can't link to glib.
Fortunately it doesn't need to build on Windows platforms either.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
g_strerror is offers the safety/correctness benefits of strerror_r, with
the API design convenience of strerror.
Use of virStrerror should be eliminated through the codebase in favour
of g_strerror.
commandhelper.c is a special case as its a tiny single threaded test
program, not linked to glib, so it just uses traditional strerror().
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Replace use of the gnulib base64 module with glib's own base64 API family.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Convert the string duplication APIs to use the g_strdup family of APIs.
We previously used the 'strdup-posix' gnulib module because mingw does
not set errno to ENOMEM on failure
We previously used the 'strndup' gnulib module because this function
does not exist on mingw.
We previously used the 'vasprintf' gnulib module because of many GNU
supported format specifiers not working on non-Linux platforms. glib's
own equivalent standardizes on GNU format specifiers too.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Convert the VIR_ALLOC family of APIs with use of the g_malloc family of
APIs. Use of VIR_ALLOC related functions should be incrementally phased
out over time, allowing return value checks to be dropped. Use of
VIR_FREE should be replaced with auto-cleanup whenever possible.
We previously used the 'calloc-posix' gnulib module because mingw does
not set errno to ENOMEM on failure.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
We're going to be eliminating autotools and gnulib, but we still wish to
have the 'make syntax-check' functionality.
This imports the minimal set of gnulib files required to keep this
working.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The 'sched' module provides a sched.h header file for platforms which
lack it. We already check for the functions we need in configure, and
protect the use of sched.h where relevant, so don't need the compat
header in libvirt.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The isatty gnulib module adds a fix for Win32 platforms where it doesn't
work correctly with character devices like NUL. This is not a compelling
enough problem for libvirt to be concerned with.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The ldexp gnulib module adds "-lm" to the $LIBS variable if-and-only-if
the ldexp() function require linking to libm. There is no harm in
linking to libm even if it isn't required for ldexp(), so simply drop
the gnulib module.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
We don't need to care about very old GCC versions, so implementing the
ignore_value macro directly is not a significant burden.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
We're using gnulib to get ffs, ffsl, rotl32, count_one_bits,
and count_leading_zeros. Except for rotl32 they can all be
replaced with gcc/clangs builtins. rotl32 is a one-line
trivial function.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This was fixing a problem with old versions of mingw which had a
pthread.h that polluted the namespace with random symbols. This is no
longer relevant on our mingw platform targets.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This fixes a problem on mingw where it doesn't know how to report
certain errnos defined by POSIX, but not used on Windows. These are
not a real problem for libvirt.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The use of this script was discontinued when we stopped providing a full
ChangeLog in the dist with:
commit ce97c33a79
Author: Andrea Bolognani <abologna@redhat.com>
Date: Mon Apr 1 17:33:03 2019 +0200
maint: Stop generating ChangeLog from git
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
gnulib fixes a portability problem on AIX which is a platform we have
never targetted.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This reverts commit 83aca30f1e.
While the motivation of the original commit is fine, we are intending to
drop autoconf in favour of meson, and similarly wish to drop use of
gnulib. Removing this feature is part of that conversion work.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
stpcpy returns a pointer to the end of the string just copied
which in theory makes it easier to then copy another string
after it. We only use stpcpy in one place though and that
is trivially rewritten to avoid stpcpy with no loss in code
clarity or efficiency.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The mktempd module in gnulib provides an equivalent to 'mktemp -d' on
platforms which lack this shell command. All platforms on which libvirt
runs the affected tests have 'mktemp -d' support, so the gnulib module
is not required.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
All use of this function was purged a long time ago in favour
of getaddrinfo
commit a8ae7d19f4
Author: Daniel P. Berrange <berrange@redhat.com>
Date: Thu Oct 21 11:13:05 2010 +0100
Remove all use of inet_pton and inet_ntop
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The getopt-posix module fixes a problem with optind being incorrectly
set after a failed option parse. It was also previously used to allow
the bhyve driver to access a private internal reentrant getopt impl.
None of this matters to libvirt code any more.
This partially reverts
commit b436a8ae5c
Author: Fabian Freyer <fabian.freyer@physik.tu-berlin.de>
Date: Thu Jun 9 00:50:35 2016 +0000
gnulib: add getopt module
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The gnulib 'func' modules provides portability to compilers which lack
the '__func__' symbol. We only care about GCC and CLang compilers so do
not need this compatibility code.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
We removed use of the secure_getenv recently in
commit 2b0d597670
Author: Daniel P. Berrangé <berrange@redhat.com>
Date: Thu Aug 1 13:35:56 2019 +0100
util: get rid of virGetEnv{Allow,Block}SUID functions
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Our ChangeLog is generated by basically redirecting the output
of 'git log' into it so, as can be expected, it has only gotten
bigger as development has progressed. As of today, its size has
reached pretty much comical levels:
$ du -sk ChangeLog
11328 ChangeLog
All of that for information *literally nobody* cares about: end
users and distro maintainers have proper release notes lovingly
compiled for them, while developers peruse the history either by
calling 'git log' directly or through their favorite $EDITOR's
git integration.
Replacing the generated ChangeLog with a short message pointing
interested parties to the git repository does not only reduce
the size of the unpacked sources from 259904 KiB to 248576 KiB
(~4% saving): from a quick test on my laptop, doing so reduces
the size of the *compressed* release archive from 15140 KiB to
12364 KiB (~18% saving) and also takes the time needed to run
'make distcheck' down from 4:44 to 4:21 (~8% saving).
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The bootstrap.conf is licensed under the terms of the LGPL, but then
suggests to "See the GNU General Public License for more details".
That should be the "GNU Lesser General Public License" instead, of
course.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
The function wcwidth() doesn't exist on mingw. However, it does exist in
gnulib, so we can rely on that.
Signed-off-by: Simon Kobyda <skobyda@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Now that we have strong PRNG generator implemented in
virRandomBytes() let's use that instead of gnulib's random_r.
Problem with the latter is in way we seed it: current UNIX time
and libvirtd's PID are not that random as one might think.
Imagine two hosts booting at the same time. There's a fair chance
that those hosts spawn libvirtds at the same time and with the
same PID. This will result in both daemons generating the same
sequence of say MAC addresses [1].
1: https://www.redhat.com/archives/libvirt-users/2018-May/msg00097.html
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Ditch the use of gnulib's digest functions in favor of GnuTLS,
which might be more likely to get FIPS-certified.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Historically we have relied on autopoint/gettextize to install a
standard po/Makefile.in.in. There is very limited scope for customizing
this and it also causes a bunch of extra stuff to be pulled into
configure.ac which potentially clashes with gnulib. Writing make rules
for po file management is no more difficult than any other rules libvirt
has, so stop using autopoint/gettextize.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
When generating the hvsupport.html.in file, we parse the -api.xml
files generated by apibuild.py to know in which HTML file the API
function is.
Doing an XPath query for every single 'function' element in the
file is inefficient.
Since the XML file is generated by another of our build scripts
(apibuild.py, using Python's standard 'output.write' XML library),
just find the function name->file mapping by a regex upfront.
Also add a note about this next to the line that generates it
in apibuild.py and do not check if XML::XPath is installed in
bootstrap since we no longer use it.
Unconditionally use gnulib's getopt module. This is needed by the bhyve driver
to provide a reentrant interface for getopt.
Several gnulib headers rely on features.h being included by ctype.h to provide
__GNUC_PREREQ, but on systems without glibc, this is not provided. In these
cases __GNUC_PREREQ gets redefined to 0, which causes build errors from checks
in src/internal.h.
Therefore, define __GNUC_PREREQ as early as possible. config-post.h is probably
the first header that is included, before any other headers.
Now that gnulib has lifted it's licensing of unsetenv, we should
use it. Just like we use its counterpart - setenv, already.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
We've split the python bindings a long time ago. However,
we are still requiring python-config (as an obfuscation to
python-devel). This does not make any sense. The only thing
we need is python, not python-devel.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
The module XML::XPath is needed when building from git only (no need to
have it when building from tarball), so this patch moves the check from
specfile into bootstrap.conf.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
There are two special cases, if the input number is 0 or the number is
larger then 2^31 (for 32bit unsigned int). For the special cases the
return value is 0 because they cannot be rounded.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Care must be taken accessing env variables when running
setuid. Introduce a virGetEnvAllowSUID for env vars which
are safe to use in a setuid environment, and another
virGetEnvBlockSUID for vars which are not safe. Also add
a virIsSUID helper method for any other non-env var code
to use.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
prevent aclocal from preferring .m4 files under m4/ over the version
provided by gnulib, by using only one directory.
I have noticed this after './configure --help' gave me two different
versions of "--enable-threads". This was caused by aclocal that
preferred the version of lock.m4 provided by autopoint instead of
using the newer version distributed with gnulib.
Having two different directories made sense back when we checked
gnulib files into libvirt.git, but that was ages ago.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
I noticed that in a fresh checkout, autogen.sh generated the
following output, but continued on with execution:
autoreconf: running: automake --add-missing --copy --force-missing
gnulib/tests/Makefile.am:28: TESTS was already defined in condition TRUE, which includes condition WITH_EXPENSIVE_TESTS ...
gnulib/tests/gnulib.mk:28: ... `TESTS' previously defined here
gnulib/tests/Makefile.am:19: `gnulib/tests/gnulib.mk' included from here
and after the run, line 28 of gnulib.mk lists GNULIB_TESTS, not TESTS.
After more investigation, I found that it is because gnulib bootstrap
provides two hooks, one before automake, and the other after; we used
the one that ran after, and were then rerunning automake ourselves;
and the warning was from the first run. But a manual second run is
pointless if we use the right hook in the first place.
The wrong function name has been latent since commit 38c9440, and we
tried to work around it in commit 6cbab7c, but it took commit 70363ea
to finally change output enough for me to realize the root cause.
* bootstrap.conf (bootstrap_epilogue): Rename...
(bootstrap_post_import_hook): ...so that it gets run before automake.
Signed-off-by: Eric Blake <eblake@redhat.com>
The gnulib testsuite is relatively stable - the only times it is
likely to have a test change from pass to fail is on a gnulib
submodule update or a major system change (such as moving from
Fedora 18 to 19, or other large change to libc). While it is an
important test for end users on arbitrary machines (to make sure
that the portability glue works for their machine), it mostly
wastes time for development testing (as most developers aren't
making any of the major changes that would cause gnulib tests
to alter behavior). Thus, it pays to make the tests optional
at configure time, defaulting to off for development, on for
tarballs, with autobuilders requesting it to be on. It also
helps to allow a make-time override, via VIR_TEST_EXPENSIVE=[01]
(much the way automake sets up V=[01] for overriding the configure
time default of how verbose to be).
Automake has some pretty hard-coded magic with regards to the
TESTS variable; I had quite a job figuring out how to keep
'make distcheck' passing regardless of the configure option
setting in use, while still disabling the tests at runtime
when I did not configure them on and did not use the override
variable. Thankfully, we require GNU make, which lets me
hide some information from Automake's magic handling of TESTS.
* bootstrap.conf (bootstrap_epilogue): Munge gnulib test variable.
* configure.ac (--enable-expensive-tests): Add new enable switch.
(VIR_TEST_EXPENSIVE_DEFAULT, WITH_EXPENSIVE_TESTS): Set new
witnesses.
* gnulib/tests/Makefile.am (TESTS): Make tests conditional on
configure settings and the VIR_TEST_EXPENSIVE variable.
* tests/Makefile.am (TESTS_ENVIRONMENT): Expose VIR_TEST_EXPENSIVE
to all tests.
* autobuild.sh: Enable all tests during autobuilds.
* libvirt.spec.in (%configure): Likewise.
* mingw-libvirt.spec.in (%mingw_configure): Likewise.
* docs/hacking.html.in: Document the option.
* HACKING: Regenerate.
Signed-off-by: Eric Blake <eblake@redhat.com>
Upstream gnulib recently patched a bug in bootstrap, for projects
that use a different name than build-aux for a subdirectory. We
don't, but it doesn't hurt to update.
* .gnulib: Update, for bootstrap fix.
* bootstrap: Sync to upstream.
* bootstrap.conf: Match upstream bug fix.
Signed-off-by: Eric Blake <eblake@redhat.com>
Since neither getpwuid_r() nor initgroups() are safe to call in
between fork and exec (they obtain a mutex, but if some other
thread in the parent also held the mutex at the time of the fork,
the child will deadlock), we have to split out the functionality
that is unsafe. At least glibc's initgroups() uses getgrouplist
under the hood, so the ideal split is to expose getgrouplist for
use before a fork. Gnulib already gives us a nice wrapper via
mgetgroups; we wrap it once more to look up by uid instead of name.
* bootstrap.conf (gnulib_modules): Add mgetgroups.
* src/util/virutil.h (virGetGroupList): New declaration.
* src/util/virutil.c (virGetGroupList): New function.
* src/libvirt_private.syms (virutil.h): Export it.
Signed-off-by: Eric Blake <eblake@redhat.com>
The mkdtemp function is missing on mingw platforms. It is
used in various Linux specific places in libvirt, but
recently became used in fdstreamtest.c which is cross
platform. Thus the GNULIB mkdtemp module should be used
to provide mkdtemp.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
More mingw build failures:
CCLD libvirt-lxc.la
/usr/lib64/gcc/i686-w64-mingw32/4.7.2/../../../../i686-w64-mingw32/bin/ld: cannot find libvirt_lxc.def: No such file or directory
CC virportallocatortest-virportallocatortest.o
../../tests/virportallocatortest.c: In function 'main':
../../tests/virportallocatortest.c:195:1: error: implicit declaration of function 'setenv' [-Werror=implicit-function-declaration]
* src/Makefile.am (GENERATED_SYM_FILES): Also generate
libvirt_lxc.def.
* bootstrap.conf (gnulib_modules): Import setenv.
A recent build failure made me realize that we could usefully add
a bit more information to configure output, for aid in analysis of
failed builds. Pulling in the autobuild module merely adds these
four lines to configure output:
configure: autobuild project... libvirt
configure: autobuild revision... v1.0.1-113-g7a74eea
configure: autobuild hostname... myhost
configure: autobuild timestamp... 20130102T233543Z
which can be useful even if not using the Autobuild project to parse
build logs.
* bootstrap.conf (gnulib_modules): Add autobuild.
* configure.ac: Favor git version over release version, when available.
The default lockd driver behavour is to acquire leases
directly on the disk files. This introduces an alternative
mode, where leases are acquire indirectly on a file that
is based on a SHA256 hash of the disk filename.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=871756
Commit cd1e8d1 assumed that systems new enough to have journald
also have mkostemp; but this is not true for uclibc.
For that matter, use of mkstemp[s] is unsafe in a multi-threaded
program. We should prefer mkostemp[s] in the first place.
* bootstrap.conf (gnulib_modules): Add mkostemp, mkostemps; drop
mkstemp and mkstemps.
* cfg.mk (sc_prohibit_mkstemp): New syntax check.
* tools/virsh.c (vshEditWriteToTempFile): Adjust caller.
* src/qemu/qemu_driver.c (qemuDomainScreenshot)
(qemudDomainMemoryPeek): Likewise.
* src/secret/secret_driver.c (replaceFile): Likewise.
* src/vbox/vbox_tmpl.c (vboxDomainScreenshot): Likewise.
AUTHORS.in tracks the maintainers, as well as some folks who were
previously in AUTHORS but don't have a git commit with proper
attribution.
Generated output is sorted alphabetically and lacks pretty spacing, so
tweak AUTHORS.in to follow the same format.
Additionally, drop the syntax-check rule that previously validated
AUTHORS against git log.
https://www.gnu.org/licenses/gpl-howto.html recommends that
the 'If not, see <url>.' phrase be a separate sentence.
* tests/securityselinuxhelper.c: Remove doubled line.
* tests/securityselinuxtest.c: Likewise.
* globally: s/; If/. If/
