diff options
Diffstat (limited to 'poky/documentation/profile-manual/profile-manual-intro.xml')
-rw-r--r-- | poky/documentation/profile-manual/profile-manual-intro.xml | 107 |
1 files changed, 0 insertions, 107 deletions
diff --git a/poky/documentation/profile-manual/profile-manual-intro.xml b/poky/documentation/profile-manual/profile-manual-intro.xml deleted file mode 100644 index a2d2f80ec..000000000 --- a/poky/documentation/profile-manual/profile-manual-intro.xml +++ /dev/null @@ -1,107 +0,0 @@ -<!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" -"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" -[<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] > -<!--SPDX-License-Identifier: CC-BY-2.0-UK--> - -<chapter id='profile-manual-intro'> - -<title>Yocto Project Profiling and Tracing Manual</title> - <section id='profile-intro'> - <title>Introduction</title> - - <para> - Yocto bundles a number of tracing and profiling tools - this 'HOWTO' - describes their basic usage and shows by example how to make use - of them to examine application and system behavior. - </para> - - <para> - The tools presented are for the most part completely open-ended and - have quite good and/or extensive documentation of their own which - can be used to solve just about any problem you might come across - in Linux. - Each section that describes a particular tool has links to that - tool's documentation and website. - </para> - - <para> - The purpose of this 'HOWTO' is to present a set of common and - generally useful tracing and profiling idioms along with their - application (as appropriate) to each tool, in the context of a - general-purpose 'drill-down' methodology that can be applied - to solving a large number (90%?) of problems. - For help with more advanced usages and problems, please see - the documentation and/or websites listed for each tool. - </para> - - <para> - The final section of this 'HOWTO' is a collection of real-world - examples which we'll be continually adding to as we solve more - problems using the tools - feel free to add your own examples - to the list! - </para> - </section> - - <section id='profile-manual-general-setup'> - <title>General Setup</title> - - <para> - Most of the tools are available only in 'sdk' images or in images - built after adding 'tools-profile' to your local.conf. - So, in order to be able to access all of the tools described here, - please first build and boot an 'sdk' image e.g. - <literallayout class='monospaced'> - $ bitbake core-image-sato-sdk - </literallayout> - or alternatively by adding 'tools-profile' to the - EXTRA_IMAGE_FEATURES line in your local.conf: - <literallayout class='monospaced'> - EXTRA_IMAGE_FEATURES = "debug-tweaks tools-profile" - </literallayout> - If you use the 'tools-profile' method, you don't need to build an - sdk image - the tracing and profiling tools will be included in - non-sdk images as well e.g.: - <literallayout class='monospaced'> - $ bitbake core-image-sato - </literallayout> - <note><para> - By default, the Yocto build system strips symbols from the - binaries it packages, which makes it difficult to use some - of the tools. - </para><para>You can prevent that by setting the - <ulink url='&YOCTO_DOCS_REF_URL;#var-INHIBIT_PACKAGE_STRIP'><filename>INHIBIT_PACKAGE_STRIP</filename></ulink> - variable to "1" in your - <filename>local.conf</filename> when you build the image: - </para> - </note> - <literallayout class='monospaced'> - INHIBIT_PACKAGE_STRIP = "1" - </literallayout> - The above setting will noticeably increase the size of your image. - </para> - - <para> - If you've already built a stripped image, you can generate - debug packages (xxx-dbg) which you can manually install as - needed. - </para> - - <para> - To generate debug info for packages, you can add dbg-pkgs to - EXTRA_IMAGE_FEATURES in local.conf. For example: - <literallayout class='monospaced'> - EXTRA_IMAGE_FEATURES = "debug-tweaks tools-profile dbg-pkgs" - </literallayout> - Additionally, in order to generate the right type of - debuginfo, we also need to set - <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGE_DEBUG_SPLIT_STYLE'><filename>PACKAGE_DEBUG_SPLIT_STYLE</filename></ulink> - in the <filename>local.conf</filename> file: - <literallayout class='monospaced'> - PACKAGE_DEBUG_SPLIT_STYLE = 'debug-file-directory' - </literallayout> - </para> - </section> -</chapter> -<!-- -vim: expandtab tw=80 ts=4 ---> |