The Open webOS Logging Daemon
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The Open webOS logging daemon implementation


The syslogd implementation is per RFC 3164. This implementation is a subset of that functionality, intended to efficiently address the needs for Open webOS embedded devices.

- it does not support remote logging (not needed)
- it only supports the standard datagram socket on port 514
- it does not support /etc/syslog.conf or standard filtering/redirection

Additional features are: - support for RFC 3339-style timestamps - support for advanced file buffering + rotation configuration - support for custom filtering/redirection


Below are the tools (and their minimum versions) required to build PmLogDaemon:

  • cmake (version required by openwebos/cmake-modules-webos)
  • gcc 4.6.3
  • glib-2.0 2.32.1
  • make (any version)
  • openwebos/cmake-modules-webos 1.0.0 RC2
  • openwebos/PmLogLib 2.0.0
  • openwebos/librdx-stub 1.0.0
  • pkg-config 0.26
  • zlib 1.2.3

Below is the component (and its minimum version) required to run PmLogDaemon:

  • openwebos/pmlogconf 2.0.0

How to Build on Linux


Once you have downloaded the source, enter the following to build it (after changing into the directory under which it was downloaded):

$ mkdir BUILD
$ cd BUILD
$ cmake ..
$ make
$ sudo make install

The directory under which the files are installed defaults to /usr/local/webos. You can install them elsewhere by supplying a value for WEBOS_INSTALL_ROOT when invoking cmake. For example:

$ cmake -D WEBOS_INSTALL_ROOT:PATH=$HOME/projects/openwebos ..
$ make
$ make install

will install the files in subdirectories of $HOME/projects/openwebos.

Specifying WEBOS_INSTALL_ROOT also causes pkg-config to look in that tree first before searching the standard locations. You can specify additional directories to be searched prior to this one by setting the PKG_CONFIG_PATH environment variable.

If not specified, WEBOS_INSTALL_ROOT defaults to /usr/local/webos.

To configure for a debug build, enter:


To see a list of the make targets that cmake has generated, enter:

$ make help


From the directory where you originally ran make install, enter:

$ [sudo] make uninstall

You will need to use sudo if you did not specify WEBOS_INSTALL_ROOT.

Generating Documentation

The tools required to generate the documentation are:

  • doxygen
  • graphviz 2.26.3

Once you have run cmake, enter the following to generate the documentation:

$ make docs

To view the generated HTML documentation, point your browser to Documentation/PmLogDaemon/html/index.html

To install the generated documentation, enter:

$ [sudo] make install-docs

The documentation will be installed to usr/share/doc/PmLogDaemon/html under the tree defined by the value of WEBOS_INSTALL_ROOT (or its default).

You will need to use sudo if you did not specify WEBOS_INSTALL_ROOT.

Copyright and License Information

All content, including all source code files and documentation files in this repository are:

Copyright (c) 2007-2012 Hewlett-Packard Development Company, L.P.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this content except in compliance with the License. You may obtain a copy of the License at

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.