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Kir Kolyshkin 5c0289845d Makefile, travis: unify checking GCOV env var 
Setting GCOV environment variable is used for doing profiling (gcov).
Unfortunately, it is checked in two different ways:

1. In top Makefile and scripts/travis, it is checked against "1".
2. In other places, it's checked to be set to a non-empty value.

So, giving various values to GCOV will lead to different results.

Let's unify the approaches used. Apparently, among all the code the
easiest (and not too strict) way is to check for non-empty value
(this also leads to the smallest possible patch size).

Note that in Python, evaluating an empty string in a binary context
(such as after an "if" statement) equals to False.

Signed-off-by: Kir Kolyshkin <kir@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
2016-11-03 01:25:17 +03:00
contrib Add script to install required packages to compile in Debian 2016-09-26 15:42:43 +03:00
coredump coredump: Rename dir to coredump 2016-06-28 13:04:58 +03:00
crit crit/decode: set default opts['nopl'] to False 2016-05-30 13:47:54 +03:00
criu headers: Move xmalloc to common 2016-11-03 00:13:04 +03:00
Documentation criu.8: document restore --leave-stopped 2016-10-24 16:00:15 +03:00
images core-ppc64: mark gregs and clear_tid_addr as (criu).hex 2016-10-24 16:00:15 +03:00
include/common headers: Move xmalloc to common 2016-11-03 00:13:04 +03:00
lib lib: add inherit_fd 2016-10-24 16:00:15 +03:00
scripts Makefile, travis: unify checking GCOV env var 2016-11-03 01:25:17 +03:00
test zdtm: Split long .desc lines 2016-11-02 20:35:57 +03:00
.gitignore uninstall: use --record with setup.py, v2 2016-05-06 14:38:29 +03:00
.mailmap repo: Add mailmap file 2012-03-25 23:31:20 +04:00
.travis.yml travis.yml: fix GCOV setting 2016-11-02 20:35:56 +03:00
COPYING COPYING: fix a typo in a preamble 2016-08-11 16:18:43 +03:00
CREDITS Add the CREDITS file 2012-07-30 13:52:37 +04:00
INSTALL.md build: Add INSTALL.md and update "make help" 2016-05-06 14:38:29 +03:00
Makefile Makefile, travis: unify checking GCOV env var 2016-11-03 01:25:17 +03:00
Makefile.config criu: get rid of config-base.h 2016-11-02 20:35:56 +03:00
Makefile.install build/make: return to make from top directory 2016-08-01 18:38:32 +03:00
Makefile.versions criu: Version 2.7 2016-10-17 11:30:31 +03:00
README.md Add ascciinema tour on basic criu features. 2016-06-16 16:37:06 +03:00

README.md

CRIU (Checkpoint and Restore in Userspace)

An utility to checkpoint/restore tasks. Using this tool, you can freeze a running application (or part of it) and checkpoint it to a hard drive as a collection of files. You can then use the files to restore and run the application from the point it was frozen at. The distinctive feature of the CRIU project is that it is mainly implemented in user space.

The project home is at http://criu.org.

Pages worth starting with are:

A video tour on basic CRIU features

CRIU introduction

How to contribute