<!doctype linuxdoc system>
<linuxdoc><article>
<titlepag>
- <title>Cross compiling VLC for ARM based platforms</title>
+ <title>Cross compiling VLC for ARM-Linux based platforms</title>
<author>Marc Ariberti <tt><htmlurl url="mailto:marcari@videolan.org" name="<marcari@videolan.org>"></tt></author>
<date>v0.0.1, 13 march 2003</date>
<abstract>
<sect>
<heading>Introduction</heading>
<sect1>
- <heading>Which platforms ar targeted ?</heading>
+ <heading>Which platforms are targeted ?</heading>
+ <p>
+ I will describe here how to compile vlc for an ARM based
+ PDA running linux. It includes for example :
+ <itemize>
+ <item>Compaq - iPaq (H36xx, H38xx,...), using
+ <itemize>
+ <item>Familiar linux
+ <item>Opie
+ </itemize>
+ </item>
+ <item>YOPY/Linupy</item>
+ <item>Zaurus</item>
+ </itemize>
+ </p>
</sect1>
<sect1>
<heading>Requirements for cross-compilation</heading>
</sect1>
<sect1>
- <heading>Why not compiling directly on the target platform ?</heading>
+ <heading>Why cross-compiling ?</heading>
+ <p>
+ It is of course possible to compile directly on the targeted platform.
+ But there are a lot of great advantages to cross-compile :
+ <itemize>
+ <item>The most important one is probably the speed, because a
+ desktop computer is most of the time faster than a PDA for
+ compilation.</item>
+ <item>Another big problem is that a complete compilation toolchain
+ does take a great amount of disk space. And this space is usually
+ very limited on embedded systems.</item>
+ <item>And there also may not be enough memory to compile big files.</item>
+ </itemize>
+ </p>
</sect1>
</sect>
<sect>
<heading>Building the toolchain</heading>
<sect1>
- <heading>The cross compiler (gcc)</heading>
+ <heading>Prerequisite</heading>
+ <sect2>
+ <heading></heading>
+ <p>
+ During this section, we will use the following variables :
+ <itemize>
+ <item><bf>${PREFIX}</bf> will designate where you want to install
+ your toolchain (eg: <tt>/usr/local/arm/2.95.3</tt>).</item>
+ <item><bf>${SRCDIR}</bf> will designate the directory where
+ sources will be uncompressed
+ (eg: <tt>/usr/src</tt> or <tt>/home/foobar/cross-arm</tt>).</item>
+ </itemize>
+ </p>
+ </sect2>
+ <sect2>
+ <heading>Files needed</heading>
+ <p>Download the following files and put them in the <bf>${SRCDIR}</bf> :
+ <itemize>
+ <item><tt>binutils-2.11.2.tar.gz</tt></item>
+ <item><tt>linux-2.4.19.tar.bz2</tt></item>
+ <item><tt>patch-2.4.19-rmk4.bz2</tt></item>
+ </itemize>
+ </p>
+ </sect2>
</sect1>
<sect1>
<heading>Binutils</heading>
+ <p>Compiling binutils is pretty simple :
+ <tscreen><verb>
+% tar xzf binutils-2.11.2.tar.gz
+% cd binutils-2.11.2
+% ./configure --target=arm-linux --prefix=/usr/local/arm/2.95.3
+% make
+% su
+# make install
+ </verb></tscreen>
+ </p>
+ </sect1>
+ <sect1>
+ <heading>Preparing linux kernel</heading>
+ <p>
+ <tscreen><verb>
+ % tar xzf linux-2.4.19.tar.bz2
+ % bunzip2 patch-2.4.19-rmk4.bz2
+ % cd linux-2.4.19
+ % patch -p1 < ../patch-2.4.19-rmk4.bz2
+ % make clean ARCH=arm CROSS_COMPILE=arm-linux-
+ % make ARCH=arm h3600_config
+ !!! don't forget to save the configuration even if no changes are made
+ % make ARCH=arm menuconfig
+ % make symlinks ARCH=arm CROSS_COMPILE=arm-linux-
+ % mkdir -p /usr/local/arm/2.95.3/arm-linux/include
+ % cp -Rf include/asm include/asm-arm include/linux /usr/local/arm/2.95.3/arm-linux/include
+ % cd /usr/local/arm/2.95.3/arm-linux
+ % ln -s include sys-linux
+
+ </verb></tscreen>
+ </p>
+ </sect1>
+ <sect1>
+ <heading>Basic cross compiler (gcc)</heading>
+ <p>
+ tar xvzf gcc-2.95.3.tar.gz
+ bunzip2 gcc-2.95.3.diff.bz2
+ bunzip2 gcc-2.95.3.diffbis.bz2
+ patch -p1 -d gcc-2.95.3 < gcc-2.95.3.diff
+ patch -p1 -d gcc-2.95.3 < gcc-2.95.3.diffbis
+ cd gcc-2.95.3
+ ./configure --target=arm-linux --disable-threads --enable-languages=c --prefix=/usr/local/arm/2.95.3 --with-headers=linux-2.4.19/include
+ make
+ make install
+ </p>
+
</sect1>
<sect1>
<heading>Compiling glibc</heading>
+ <p>
+ Depending on your target, you may choose another glibc version (eg: 2.1.3 for linupy 1.4)
+ tar xvzf glibc-2.2.5.tar.gz
+ cd glibc-2.2.5
+ tar xvzf ../glibc-linuxthreads-2.2.5.tar.gz
+ CC=arm-linux-gcc ./configure arm-linux --target=arm-linux --prefix=/usr/local/arm/2.95.3/arm-linux --enable-add-ons
+
+ The following step is quite long !
+
+ CC=arm-linux-gcc make
+
+ If you have problems compiling glibc due to pread/pwrite, edit sysdeps/unix/sysv/linux/kernel-features.h
+ and turn __ASSUME_PREAD_SYSCALL and __ASSUME_PWRITE_SYSCALL from 1 to 0.
+
+ CC=arm-linux-gcc make install
+ </p>
+ </sect1>
+ <sect1>
+ <heading>Full cross compiler (gcc)</heading>
+ rm -Rf gcc-2.95.3
+ tar xvzf gcc-2.95.3.tar.gz
+ patch -p1 -d gcc-2.95.3 < gcc-2.95.3.diff
+ patch -p1 -d gcc-2.95.3 < gcc-2.95.3.diff2
+ cd gcc-2.95.3
+ ./configure --target=arm-linux --prefix=/usr/local/arm/2.95.3
+ make
+ make install
</sect1>
<sect1>
<heading>Misc</heading>
+ Add /usr/local/arm/2.95.3/bin to your PATH. Add the following line (depends on your shell)
+ to your shell's configuration file :
+ export PATH=/usr/local/arm/2.95.3/bin:$PATH
+
+ cp libgcc_s.so.1 /usr/local/arm/2.95.3-new/arm-linux/lib
+
+ Install theses packages on your compiler box in /usr/local/arm/2.95.3/arm-linux
+ xlibs_4.1-5_arm.ipk
+ xlibs-dev_4.1.0-16_arm.ipk
+ zlib1g_1.1.4-3_arm.ipk
+ zlib1g-dev_1.1.3-fam1_arm.ipk
</sect1>
</sect>
+
+
+
+
<sect>
<heading>Cross compiling libraries needed by vlc</heading>
+ Download <tt>ipaq-config.site</tt> to ${SOURCES}.
+ When downloading source tarballs copy them to your ${SOURCES} directory.
+ Each section is supposed to begin with <tt>cd ${SOURCES}</tt>.
<sect1>
<heading>SDL</heading>
+ !!!! beurk but did not found a better working method ¡¡¡¡
+ tar xvzf SDL-1.2.5.tar.gz
+ cd SDL-1.2.5
+./configure --enable-release --target=arm-linux --host=arm-linux \
+ --disable-esd \
+ --prefix=/usr/local/arm/2.95.3/arm-linux/usr \
+ --x-includes=/usr/local/arm/2.95.3/arm-linux/usr/X11R6/include \
+ --x-libraries=/usr/local/arm/2.95.3/arm-linux/usr/X11R6/lib \
+ --disable-video-opengl
+export PATH=/usr/local/arm/2.95.3/arm-linux/bin:$PATH
+
+
+make && make install
+
</sect1>
<sect1>
<heading>Glib/GTK+</heading>
+ tar xvzf glib-1.2.10.tar.gz
+ cd glib-1.2.10
+ CONFIG_SITE=../ipaq-config.site ./configure --prefix=/usr/local/arm/2.95.3/arm-linux/usr
+ make
+ make install
+ cd ..
+ tar xvzf gtk+-1.2.10.tar.gz
+ cd gtk+-1.2.10
+ CONFIG_SITE=../ipaq-config.site ./configure --prefix=/usr/local/arm/2.95.3/arm-linux/usr --with-glib=../glib-1.2.10
+ make
+ make install
</sect1>
<sect1>
<heading>ffmpeg</heading>
+ tar xvzf ffmpeg.tar.gz
+ cd ffmpeg
+ ./configure --cpu=armv4l --cc=arm-linux-gcc --disable-mmx --prefix=/usr/local/arm/2.95.3/arm-linux/usr --enable-shared
+ cd libavcodec
+ make
+
+ Vlc does not require that you install ffmpeg.
</sect1>
<sect1>
<heading>mad</heading>
+ tar xvzf mad-0.14.2b.tar.gz
+ cd mad-0.14.2b
+./configure --enable-release --target=arm-linux --host=arm-linux \
+ --disable-esd \
+ --prefix=/usr/local/arm/2.95.3/arm-linux/usr \
+ --x-includes=/usr/local/arm/2.95.3/arm-linux/usr/X11R6/include \
+ --x-libraries=/usr/local/arm/2.95.3/arm-linux/usr/X11R6/lib \
+ --disable-video-opengl
+export PATH=/usr/local/arm/2.95.3/arm-linux/bin:$PATH
+ make
+
+ </sect1>
+ <sect1>
+ <heading>gpe</heading>
</sect1>
+ %%%%%%%%%%%%%%%%%%%%%%%
+ First get Tremor and ogg sources from xiph.org (through CVS for example).
+Then for each them, do :
+% ./configure --enable-release --prefix=/usr/local/arm/2.95.3/arm-linux
+% export PATH=/usr/local/arm/2.95.3/arm-linux/bin:$PATH
+% make
+% su
+# make install
+
+I know it is not clean, but --host or --target switches does not work.
+The PATH I include, contains all the gcc utils for cross compilation
+without the arm-linux- prefix.
+
+If you want to link them statically : edit the libvorbisidec.a and remove
+from the archive bitwise.o and framing.o (conflict with libogg.a)
+
+For flac, get the source tarball (from the videolan website for example)
+% ./configure --enable-release --host=arm-linux --target=arm-linux
+--prefix=/usr/local/arm/2.95.3/arm-linux
+% make
+-> will fail (xmms plugin), but not a problem, continue installation by hand
+% su
+# cp -Rf include/FLAC /usr/local/arm/2.95.3/arm-linux/include
+# cd src/libFLAC
+# make install
+
+When compiling vlc, add to the ./configure :
+ --enable-ogg
+ --enable-tremor
+ --enable-flac
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
<sect1>
<heading>tremor</heading>
</sect1>
</sect1>
<sect1>
<heading>libdvbpsi</heading>
+ tar xvzf libdvbpsi-0.1.2.tar.gz
+ cd libdvbpsi-0.1.2
+ ./bootstrap
+ ./configure --target=arm-linux --host=arm-linux
+ make
+
</sect1>
<sect1>
<heading>a52</heading>
+ tar xvzf a52dec-0.7.4.tar.gz
+ cd a52dec-0.7.4
+ ./configure --enable-release --host=arm-linux --target=arm-linux --prefix=/usr/local/arm/2.95.3/arm-linux
+ make && make install
+
</sect1>
</sect>
<sect>
<heading>Cross compiling vlc itself</heading>
+ have a look à rules.* in the ipkg directory.
</sect>
</article></linuxdoc>
projects / vlc / commitdiff