diff options
Diffstat (limited to 'documentation/dev-manual')
| -rw-r--r-- | documentation/dev-manual/dev-manual-common-tasks.xml | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/documentation/dev-manual/dev-manual-common-tasks.xml b/documentation/dev-manual/dev-manual-common-tasks.xml index b20d9c32f3..4cdd805cec 100644 --- a/documentation/dev-manual/dev-manual-common-tasks.xml +++ b/documentation/dev-manual/dev-manual-common-tasks.xml @@ -9875,7 +9875,10 @@ <para> The previous section addressed using GDB remotely for debugging - purposes. + purposes, which is the most usual case due to the inherent + hardware limitations on many embedded devices. + However, debugging in the target hardware itself is also possible + with the most powerful devices. This section describes what you need to do in order to support using GDB to debug on the target hardware. </para> @@ -9910,6 +9913,22 @@ </literallayout> </para></listitem> </itemizedlist> + <note> + To improve the debug information accuracy, you can reduce the + level of optimization used by the compiler. + For example, when adding the following line to your + <filename>local.conf</filename> file, you will reduce + optimization from + <ulink url='&YOCTO_DOCS_REF_URL;#var-FULL_OPTIMIZATION'><filename>FULL_OPTIMIZATION</filename></ulink> + of "-O2" to + <ulink url='&YOCTO_DOCS_REF_URL;#var-DEBUG_OPTIMIZATION'><filename>DEBUG_OPTIMIZATION</filename></ulink> + of "-O -fno-omit-frame-pointer": + <literallayout class='monospaced'> + DEBUG_BUILD = "1" + </literallayout> + Consider that this will reduce the application's performance + and is recommended only for debugging purposes. + </note> </para> </section> |