From the monthly archives: August 2012

WordPress Quick Tips: background color, special chars

By On 27 August 2012 · 1 Comment

To set special attributes of a paragraph e.g. the background, font typeface, color and size, etc enclose your paragraph in a <div> tag, e.g.:

<div style=”background-color:black;color:red;font-size:0.75em;font-family:Courier”>
Your paragraph goes here. It will use a Courier font, 75% of the normal size, and the text will be red on a black background…</div>

Using the above […]

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GDB – how to step into uClibc if you have .debug files

By On 27 August 2012 · Leave a Comment

1. Make sure your debuginfo files are part of LD_LIBRARY_PATH.

To do this, either
a) add the path where you stored the .debug files to your LD_LIBRARY_PATH environment variable, e.g.:

$ export LD_LIBRARY_PATH=/opt/STM/STLinux-2.3/devkit/sh4_uclibc/target/usr/lib/debug:/opt/STM/STLinux-2.3/devkit/sh4_uclibc/bin/../lib:/opt/STM/STMCR1.5.0/lib:/opt/STM/STLinux-2.3/devkit/sh4_uclibc/bin/../../../host/stmc/lib

Then restart gdb.

OR
b) start gdb and set the LD_LIBRARY_PATH from within gdb:

(gdb) set env LD_LIBRARY_PATH […]

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Error in PREUN scriptlet … file was supposed to be removed but is not

By On 23 August 2012 · 10 Comments

Sometimes a yum/RPM package would get “stuck” and just won’t go away. Actually usually the package is already gone but yum/rpm fails to update it’s internal DB and still thinks it is there.

The error one usually sees in such cases is something like:

Error in PREUN scriptlet in rpm package stlinux23-sh4_uclibc-which

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Problems with a buildroot root filesystem (no initial console, libgcc_s, etc)

By On 14 August 2012 · Leave a Comment

Making an embedded system boot up properly can be quite a hurdle sometimes. Among the various problems you might encounter, those related to your root filesystem are some of the most common ones I have seen and among those a very frequent problem is not being akle to acquire an initial console/terminal.

These boot […]

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