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I had no previous development experience on Linux before working on Fennec. However, we use the tools we have, so I started playing with <code>gdb</code> and <code>gdbserver</code>. | |||
To debug Fennec/XULRunner, you'll need a build with at least debug symbols. Creating full debug builds in scratchbox has failed many times. Using debug symbols is a little more lightweight. | |||
Add the following to you <code>mozconfig</code>: | |||
<pre> | |||
export MOZ_DEBUG_SYMBOLS=1 | export MOZ_DEBUG_SYMBOLS=1 | ||
ac_add_options --enable-debugger-info-modules=yes | ac_add_options --enable-debugger-info-modules=yes | ||
</pre> | |||
Now the Fennec/XULRunner binaries have debug symbols. However, the packaging phase will strip the symbols. You need to disable the strip. | |||
In mozconfig: | |||
<pre> | |||
ac_add_options --disable-install-strip | ac_add_options --disable-install-strip | ||
</pre> | |||
During a package: | |||
<pre> | |||
make package PKG_SKIP_STRIP=1 | make package PKG_SKIP_STRIP=1 | ||
</pre> | |||
Now you can copy the binaries to the device. Because the debug binaries are larger than the release versions, you probably want to copy the application to /media/mmc2 since it has much more space available: | |||
<pre> | |||
scp fennec-archive.tar.bz2 root@192.168.10.100:/media/mmc2 | |||
</pre> | |||
In order to use <code>gdb</code> or <code>gdbserver</code> on the device, you'll need to install it: | |||
<pre> | |||
apt-get install gdb | apt-get install gdb | ||
</pre> | |||
gdbserver host:5555 ./fennec | gdbserver host:5555 ./fennec | ||
Revision as of 23:53, 29 June 2009
I had no previous development experience on Linux before working on Fennec. However, we use the tools we have, so I started playing with gdb and gdbserver.
To debug Fennec/XULRunner, you'll need a build with at least debug symbols. Creating full debug builds in scratchbox has failed many times. Using debug symbols is a little more lightweight.
Add the following to you mozconfig:
export MOZ_DEBUG_SYMBOLS=1 ac_add_options --enable-debugger-info-modules=yes
Now the Fennec/XULRunner binaries have debug symbols. However, the packaging phase will strip the symbols. You need to disable the strip.
In mozconfig:
ac_add_options --disable-install-strip
During a package:
make package PKG_SKIP_STRIP=1
Now you can copy the binaries to the device. Because the debug binaries are larger than the release versions, you probably want to copy the application to /media/mmc2 since it has much more space available:
scp fennec-archive.tar.bz2 root@192.168.10.100:/media/mmc2
In order to use gdb or gdbserver on the device, you'll need to install it:
apt-get install gdb
gdbserver host:5555 ./fennec
gdb gdb target remote 192.168.10.103:5555 continue