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Ondrej Mosnacek 542e878690 libsepol: cache ebitmap cardinality value
According to profiling of semodule -BN, ebitmap_cardinality() is called
quite often and contributes a lot to the total runtime. Cache its result
in the ebitmap struct to reduce this overhead. The cached value is
invalidated on most modifying operations, but ebitmap_cardinality() is
usually called once the ebitmap doesn't change any more.

After this patch, the time to do 'semodule -BN' on Fedora Rawhide has
decreased from ~10.9s to ~8.9s (2s saved).

Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com>
[sds@tycho.nsa.gov: correct times per follow-up on list]
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
2020-02-18 10:36:21 -05:00
.circleci CircleCI: run scan-build and publish its results automatically 2019-09-26 09:45:47 -04:00
checkpolicy libsepol,checkpolicy: support omitting unused initial sid contexts 2020-01-29 10:17:02 -05:00
dbus Update VERSIONs to 3.0 for release. 2019-11-28 13:46:48 +01:00
gui Update VERSIONs to 3.0 for release. 2019-11-28 13:46:48 +01:00
libselinux label_file.c: Fix MAC build 2020-02-11 09:47:41 -05:00
libsemanage libsemanage: preserve parent Makefile's flags in debug mode 2020-02-07 16:29:04 -05:00
libsepol libsepol: cache ebitmap cardinality value 2020-02-18 10:36:21 -05:00
mcstrans Update VERSIONs to 3.0 for release. 2019-11-28 13:46:48 +01:00
policycoreutils Update VERSIONs to 3.0 for release. 2019-11-28 13:46:48 +01:00
python python/semanage: check variable type of port before trying to split 2019-12-10 15:21:16 -05:00
restorecond Update VERSIONs to 3.0 for release. 2019-11-28 13:46:48 +01:00
sandbox Update VERSIONs to 3.0 for release. 2019-11-28 13:46:48 +01:00
scripts libsepol, libsemanage: add a macro to silence static analyzer warnings in tests 2019-09-30 08:43:41 -04:00
secilc Update VERSIONs to 3.0 for release. 2019-11-28 13:46:48 +01:00
semodule-utils Update VERSIONs to 3.0 for release. 2019-11-28 13:46:48 +01:00
.gitignore restorecond: Add gitignore 2016-11-16 11:20:05 -05:00
.travis.yml Travis-CI: test that DEBUG build works 2020-02-07 16:29:04 -05:00
CleanSpec.mk Add empty top level Android.mk / CleanSpec.mk files 2015-04-16 07:54:09 -04:00
CONTRIBUTING.md Fix many misspellings 2019-09-18 22:47:35 +02:00
lgtm.yml Add configuration file for lgtm.com 2019-09-18 08:24:11 -04:00
Makefile Makefile: always build with -fno-common 2020-01-27 10:51:23 -05:00
README README: Update Fedora python 3 dependencies 2019-02-20 16:43:27 +01:00

Please submit all bug reports and patches to selinux@vger.kernel.org.
Subscribe by sending "subscribe selinux" in the body of an email
to majordomo@vger.kernel.org.

Build dependencies on Fedora:
yum install audit-libs-devel bison bzip2-devel dbus-devel dbus-glib-devel flex flex-devel flex-static glib2-devel libcap-devel libcap-ng-devel pam-devel pcre-devel python3-devel python3-setools swig xmlto redhat-rpm-config

To build and install everything under a private directory, run:
make DESTDIR=~/obj install install-pywrap

To install as the default system libraries and binaries
(overwriting any previously installed ones - dangerous!),
on x86_64, run:
make LIBDIR=/usr/lib64 SHLIBDIR=/lib64 install install-pywrap relabel
or on x86 (32-bit), run:
make install install-pywrap relabel

This may render your system unusable if the upstream SELinux userspace
lacks library functions or other dependencies relied upon by your
distribution.  If it breaks, you get to keep both pieces.

To install libsepol on macOS (mainly for policy analysis):
cd libsepol; make PREFIX=/usr/local install

This requires GNU coreutils (brew install coreutils).