| Program | What version I used What is in it | Links |
|---|---|---|
| Binutils | binutils-2.11.2.tar.bz2 assembler, linker, objcopy, other goodies... (versions newer than this create overlap errors with crt0.o?) (some of them complain about --mcpu=arm7tdmi with certain versions of gcc! I am experimenting) | Binutils From ftp.gnu.org Mirror:Binutils From mirrors.kernel.org |
| GCC | gcc-3.0.4.tar.gz c/c++ compiler (will experiment with newer ones but gcc-3.3 gave me trouble though all I think it was doing was passing --mcpu=arm7tdmi to as!) | GCC From ftp.gnu.org Mirror:GCC From mirrors.kernel.org |
| Newlib | newlib-1.11.0.tar.gz micro libc | Newlib From sources.redhat.com Mirror: still looking... |
| crtls v1.28 | crtls.zip start of rom/mb image. | crtls.zip from www.devrs.com Mirror: crtls.zip from a mirror |
| What is happening | Command Line | Time It Took |
| We have to build binutils/gcc/newlib in a seperate directory from the source! so we create 3 directories. | mkdir build-binutils mkdir build-gcc mkdir build-newlib | how fast can you type? |
| Now in each of those directories, uncompress the related source I will just give you one example you can do the rest | (in build-binutils) tar xfvj ../binutils-2.11.2.tar.gz (your path to binutils-2.11.2.tar.gz may be different) | not to long |
| What is happening | Command Line | Time It Took |
| Now we need to run configure inside the binutils directory, from our build-utils directory with a few options --target=arm-thumb-elf which means build for arm (uh yeah) --prefix=/somedir i don't use this but it allows you to install the files in a directory other than the default /usr/local | ./binutils-2.11.2/configure --target=arm-thumb-elf | 3 seconds |
| Now we start the build, still in the build-binutils directory we created. | make | 5 minutes 17 seconds |
| Now we install the files to whatever you set --prefix to or /usr/local if you didn't use --prefix (still in the build-binutils directory we created). | make install | 35 seconds |
| What is happening | Command Line | Time It Took |
| Now we need to run configure inside the gcc directory, from the build-gcc directory with a few options --target=arm-thumb-elf arm/thumb output assembly --with-cpu=arm7tdmi default processor type (there are alot of other ARMs) --with-newlib use newlib instead of glibc --enable-multilib not sure, I think it is to help with interworking --enable-interwork make arm and thumb play nice together --disable-threads don't use threads? --enable-targets=arm-elf use elf format for objects --with-headers=../build-newlib/newlib-1.11.0/newlib/libc/include/ use headers from our freshly decompressed newlib (may have to change path) --enable-languages="c" just c no c++ or ada or whatever else gcc does... --prefix=/somedir i don't use this but it allows you to install the files in a directory other than the default /usr/local | ./gcc-3.0.4/configure --target=arm-thumb-elf --with-cpu=arm7tdmi --with-newlib --enable-multilib --enable-interwork --disable-threads --enable-targets=arm-elf --with-headers=../build-newlib/newlib-1.11.0/newlib/libc/include --enable-languages="c" (your newlib path may be different) (that is one line if you didn't now) | 1 minute |
| Now we start the build, still in the build-gcc directory we created. | make | 7 minutes 52 seconds (I thought it would take longer....) |
| Now we install the files to whatever you set --prefix to or /usr/local if you didn't use --prefix (still in the build directory we created). | make install | 27 seconds (gcc installs faster then binutils?!) |
| What is happening | Command Line | Time It Took |
| Now we need to run configure inside the newlib directory, from our new build-newlib directory with a few options --target=arm-thumb-elf which means build for arm (uh yeah) --prefix=/somedir i don't use this but it allows you to install the files in a directory other than the default /usr/local | ./newlib-1.11.0/configure --target=arm-thumb-elf | 5 seconds |
| Now we start the build, still in the build-newlib directory we created. | make | 5 minutes 46 seconds |
| Now we install the files to whatever you set --prefix to or /usr/local if you didn't use --prefix (still in the build directory we created). | make install | 1 minute 21 seconds |
| What is happening | Command Line | Time It Took |
| After you have unzip'ed the crtls.zip file just run it through our new assembler. | arm-thumb-elf-as CRT0.S -o crt0.o | ~0 seconds |
| You might want to get rid of these to. (yes you do) /usr/local/arm-thumb-elf/lib/crt0.o /usr/local/arm-thumb-elf/lib/redboot-crt0.o /usr/local/arm-thumb-elf/lib/thumb/crt0.o /usr/local/arm-thumb-elf/lib/thumb/redboot-crt0.o | how fast can you type? | |
| Command | What it does... | Time It Took |
| After you have downloaded and decompressed flgba.zip compiling is simple | gcc fl.c -o fl (that is x86 gcc not arm-thumb-elf-gcc) (I copy fl and mb to /usr/local/bin so that they are in path) | ~1 second |
| First you need to copy that crt0.o you created earlier, and lnkscript from crtls.zip (same place you got CRT0.S from) to the directory where test.c and it's makefile are then you run this incredibly complex command | make - for a .mb image or make all - for a .mb and .gba image | ~1 second for make all |
| then to send it over an mbv2 cable | make send or mb -w 10 -s test.mb (only if you have mb in your path though!) | 2-3 seconds, I forgot to time it. |
| Who Where | Note | |
| Dooby His site | How I learned how to build GCC for GBA for Linux Thanks Dooby! | |
| ?? Cross GCC Howto | Helped alittle... kind of old I think | |
| Jason Wilkins devkitadv source | mostly just confused me, strange buildscript/makefile (can't remember if it was sh or make)... Read this... | |