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--- doc:appunti:prog:openmoko_compile [2009/10/18 07:53] – niccolo
+++ doc:appunti:prog:openmoko_compile [2009/12/16 15:39] – niccolo
@@ Line 83: / Line 83: @@
 I pacchetti vengono installati sotto **''/usr/local/openmoko/arm/arm-angstrom-linux-gnueabi/''**.
-==== Compiling a large project: Navit ====
+===== Compiling a large project: Navit =====
-Please, improve the page [[http://wiki.navit-project.org/index.php/Navit_on_freerunner|Navit on FreeRunner]].
+Remember to improve the page [[http://wiki.navit-project.org/index.php/Navit_on_freerunner|Navit on FreeRunner]].
+How to cross-compile a large project like Navit for the OpenMoko/FreeRunner, using a GNU/Linux box and the toolchain.
 First of all, edit the ''/usr/local/openmoko/arm/environment-setup'' script and add the followig line:
@@ Line 93: / Line 95: @@
 </file>
-After toolchain installation, install (with **''opkg-target''**) some OpenMoko **''-dev''** packages required to compile Navit:
+After toolchain installation, install (with **''opkg-target''**) some OpenMoko **''-dev''** packages required to compile Navit. Depending upon permissions of ''/usr/local/openmoko/'' directory, you may need root privileges:
 <code>
 . /usr/local/openmoko/arm/environment-setup
+opkg-target list
 opkg-target install gpsd-dev
 opkg-target install gtk+-dev
@@ Line 102: / Line 105: @@
 </code>
-Now we check-out Navit sources from the SVN repository and run **''om-conf''** to prepare the ''automake'', ''autoconf'' and ''make'' files to run into the OpenMoko toolchain:
+Now we check-out Navit sources from the SVN repository and we make an archive just in case we need the pristine sources in the future:
 <code>
 svn co https://navit.svn.sourceforge.net/svnroot/navit/trunk/navit
 tar zcvf navit-svn-2670.tar.gz navit
-om-conf navit
 </code>
+Instead of running the traditional **''./autogen.sh; ./configure''** in the navit source tree, we must run the **''om-conf''** script, which will modify the ''automake'', ''autoconf'' and ''make'' files to run into the OpenMoko toolchain.
+Because Navit on the OpenMoko FreeRunner requires some configure options, we will pass them to the script. Run ''om-conf'' from the directory containing the source tree (not inside it):
+<code>
+om-conf --host=arm-angstrom-linux-gnueabi --enable-avoid-unaligned --enable-avoid-float \
+    --enable-cache-size=20971520 --with-saxon=saxon-xslt --with-xslts=openmoko \
+    --enable-svg2png-scaling=16,32,48,96 --enable-svg2png-scaling-flag=32,48 \
+    navit
+</code>
+In the example above we used some **''./configure''** options, among them:
+**''--with-saxon=saxon-xslt''**\\ This is because we have the Debian libsaxon-java package, where the executable is called ''saxon-xslt'' instead of ''saxon''.
+**''--enable-svg2png-scaling=16,32,48,96''**\\ For each .svg icon, render a png image of the specified size. Images will be named **''icon_XX_YY.png''**.
+**''--enable-svg2png-scaling-flag=32,48''**\\ Same as above, but only for country flag icons.
 It's time to cross-compile:
@@ Line 120: / Line 142: @@
 === Using the toolchains ===
+The OpenMoko toolchain provides the **''om-make-ipkg''** utility. It requires the **directory** name where to execute the ''make install'' and the name of the **control file**:
+<code>
+. /usr/local/openmoko/arm/environment-setup
+om-make-ipkg navit navit-control
+</code>
+The control file is described [[http://wiki.openmoko.org/wiki/Toolchain#Packaging_your_application|here]].
+If you need more control files (e.g. a ''postinst'' or alike) you have to tweak with the ''om-make-ipkg'' script.  Here it is the script I use, it looks for the control files into an **''opkg''** directory, so you have to pass just the directory name containing the source tree.
+<code bash>
+#!/bin/sh -e
+error_exit () {
+        echo usage: $(basename ${0}) [app_dir_name] [ipkg_control_file]
+        exit 1
+}
+test x${OMTOOL_DIR} = x && . /usr/local/openmoko/arm/setup-env
+. ${OMTOOL_DIR}/arm/scripts/functions
+S=${1}
+(test x${S} = x || test ! -d ${S}) && error_exit
+appname=$(basename ${S})
+tmpdir=/tmp/${appname}-ipkg-tmp
+test -e "${tmpdir}" && echo Cannot use ${tmpdir} because it already exists. && exit 1
+make -C ${S} install DESTDIR="${tmpdir}"
+# Copy control files to destination directory.
+cp -pr opkg/* ${tmpdir}
+ipkg-build -o 0 -g 0 ${tmpdir}
+rm -rf ${tmpdir}
+</code>
+Control files and other files are arranged into the ''opkg'' directory as needed, here it is an example:
+<code>
+opkg/CONTROL/postinst
+opkg/CONTROL/control
+opkg/etc/rcS.d/S96overcommit_memory.sh
+</code>
 === Using opkg-utils ===
-This is an OpenMoko porting of the ipkg tools. Ipkg is obsolete, you should use opkg, but documentation is scarce.
+The **[[http://handhelds.org/moin/moin.cgi/Ipkg|ipkg]]** tool is obsolete, OpenMoko uses the **[[http://wiki.openmoko.org/wiki/Opkg|opkg]]** instead, but documentation is scarce.
+The current opkg code is in [[http://code.google.com/p/opkg/|Google code]], but you can try this one:
-Simply do an:
 <code>
 svn co http://svn.openmoko.org/trunk/src/host/opkg-utils
 </code>
-and use the instructions of ipkg's website but the software from this checkout, the opkg-build.
+and use the instructions of ipkg's website but the software from this checkout. The main script is **''opkg-build''**.
 ===== Qemu and the GTA02 FreeRunner =====