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| you can find it right [http://users.uoa.gr/~knakos/scummvm/libraries/wince-gcc-libs.tar.bz2 here]. | | you can find it right [http://users.uoa.gr/~knakos/scummvm/libraries/wince-gcc-libs.tar.bz2 here]. |
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| Please note that many of those libraries have been officially ported to winCE | | Please note that many of those libraries have been officially ported to WinCE |
| after the work done by Arisme or, newer versions are available for them. | | after the work done by Arisme or, newer versions are available for them. |
| We generally cannot comment on how well they will work with ScummVM. | | We generally cannot comment on how well they will work with ScummVM. |
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| == Compiling using the GCC toolchain == | | == Compiling using the GCC toolchain == |
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|
| The VLC port of GCC requires some prep work before it's ready for action.
| | First, you need to download and install the [http://cegcc.sf.net/ cegcc] cross compiler. More specifically, you need the mingw32 variety (without the posix layer emulation that is). The package also includes a working gdb debugger for debugging the applications. |
| There are two major problems with it:
| |
| It does not honor the <tt>#pragma pack()</tt> directive and there is a store layout bug for packed structs.
| |
| Hence, it needs to be rebuilt.
| |
| As a welcome aside though, the procedure described in the following subsections can be applied to linux
| |
| or cygwin based environment.
| |
| This means that the cross compiler can be installed onto a Windows ([http://www.cygwin.org Cygwin])
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| machine as well.
| |
| | |
| ''It has been reported that the packages needed for Cygwin are: gcc, make, sed, bison, flex, texinfo, patch, cvs, gettext, gettext-devel, perl, svn. Also some CR/LF conversion may be needed by utilities such as dos2unix and unix2dos.''
| |
| | |
| === Cross compiler ===
| |
| | |
| The build process is carried out in two steps, first the binutils and then the gcc cross compiler.
| |
| Begin by designating a directory where all source downloads and build will take place.
| |
| | |
| (''Note:'' the patches by the VLC guys target specific GCC/binutils versions.
| |
| We'll rebuild those exact versions as they are good enough for the time being.)
| |
| | |
| ==== Binutils ====
| |
| | |
| Checkout the binutils source, as described in the [http://www.gnu.org/software/binutils/ GNU Binutils]
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| page but designating a revision date as well:
| |
| cvs -z 9 -d :pserver:anoncvs@sourceware.org:/cvs/src login
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| {enter "anoncvs" as the password}
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| cvs -z 9 -d :pserver:anoncvs@sourceware.org:/cvs/src co -D 20050514 binutils
| |
| CD into the root of the source tree and patch with the three
| |
| [http://download.videolan.org/pub/testing/wince/patches/ VLC binutils patches] (may patch with a little fuzz). | |
| Configure the build:
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| ./configure --target=arm-wince-pe --prefix=PREFIX_TO_CROSS_COMPILER
| |
| (PREFIX_TO_CROSS_COMPILER is the path where the cross compiler will be installed.
| |
| In linux it is: <tt>/usr/local/wince/cross-tools</tt>)
| |
| | |
| Make and make install. You may need to manually run ranlib on some generated libs
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| during making.
| |
| | |
| ==== GCC ====
| |
| | |
| Checkout the [http://gcc.gnu.org/ GCC] source:
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| svn -q checkout -r {20050511} svn://gcc.gnu.org/svn/gcc/trunk gcc
| |
| (Note the date. It does not match the date in the VLC patches. Also, later revisions | |
| contain severe bugs)
| |
| | |
| Now come the patches.
| |
| :* First apply the VLC [http://download.videolan.org/pub/testing/wince/patches/ GCC patch] (maybe a little fuzz here as well).
| |
| :* Then, patch <tt>gcc/stor-layout.c</tt> with the patch described [http://gcc.gnu.org/ml/gcc-patches/2006-10/msg01115.html here].
| |
| :* Finally, in <tt>gcc/config/arm/arm.h</tt>, stick the following define somewhere (before the architecture define is OK):
| |
| #define HANDLE_PRAGMA_PACK_PUSH_POP
| |
| In the root of the GCC source tree, make a directory called <tt>wince</tt>.
| |
| CD into it and create a file called <tt>build.sh</tt> with the following stuff (substitute PREFIX_TO_CROSS_COMPILER), and run it:<br>
| |
| {| style="padding: 1em; border: 1px dashed #2f6fab; color: black; background-color: #f9f9f9; line-height: 1.1em"
| |
| |<tt>export PATH=PREFIX_TO_CROSS_COMPILER/bin:$PATH</tt><br>
| |
| <tt>../configure --with-gcc --with-gnu-ld --with-gnu-as --target=arm-wince-pe --prefix=PREFIX_TO_CROSS_COMPILER --disable-threads --disable-nls --enable-languages=c++ --disable-win32-registry --disable-interwork --disable-multilib</tt><br>
| |
| <tt>make install</tt>
| |
| |}
| |
| | |
| ==== Finish up ====
| |
| | |
| We need to copy over some stuff from the full GCC tarball.
| |
| Get [http://download.videolan.org/pub/testing/wince/wince-arm-gcc4.0.0-cvs-linux-crosscompiler-20050517.tar.bz2 the binary tarball] and unpack it somewhere.
| |
| :* Copy recursively all of <tt>usr/local/wince/cross-tools/include/</tt> into your <tt>PREFIX_TO_CROSS_COMPILER/include</tt>.
| |
| :* Copy all of the libs in <tt>usr/local/wince/cross-tools/lib</tt> into your <tt>PREFIX_TO_CROSS_COMPILER/lib</tt> (except libiberty.a).
| |
| :* CD into your <tt>PREFIX_TO_CROSS_COMPILER/arm-wince-pe/lib</tt> and make the following two symbolic links:
| |
| ln -s ../../lib/corelibc.lib crt0.o
| |
| ln -s ../../lib/coredll.lib c.lib
| |
| Done :-)
| |
| | |
| (''Note:'' In linux, it is much easier to get the binary tarball, extract it into the root of the filesystem, and then build
| |
| the binutils and GCC replacing essentially the offending files (C++ compiler etc). This final step in this case is not be required)
| |
|
| |
|
| === ScummVM === | | === ScummVM === |
| ''Assuming you have installed the toolchain in its default place''
| | Here is the procedure for building ScummVM: |
| | |
| This is the procedure for building ScummVM, provided the compiler is patched as described above:
| |
|
| |
|
| * Build libraries from source | | * Build libraries from source |
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| |} | | |} |
| ''Try <tt>make libz.a</tt> for libz. Also DrMcCoy reported that he had to include "<tt>typedef long _off_t; typedef _off_t off_t;</tt>" into <tt>unistd.h</tt>'' | | ''Try <tt>make libz.a</tt> for libz. Also DrMcCoy reported that he had to include "<tt>typedef long _off_t; typedef _off_t off_t;</tt>" into <tt>unistd.h</tt>'' |
| | ''WARNING: These instructions have been written with the VLC GCC compiler in mind. Exact command lines may differ slightly from these shown aboe'' |
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| * Build | | * Build |
| cd into <tt>backends/platform/wince/</tt>, edit the Makefile supplying the prefix to you arm-wince-gcc installation at the <tt>wince_gcc_root</tt> variable (the <tt>PREFIX_TO_CROSS_COMPILER</tt> mentioned above). Finally type <tt>make dist</tt>. | | cd into <tt>backends/platform/wince/</tt>, edit the Makefile to your needs (usually you don't have to do this). Finally type <tt>make dist</tt> if you have edited the Makefile for a non-plugin build, <tt>make dist-plugins</tt> for the plugin case, or more simply <tt>make all</tt> which invokes the required build automatically. |