Continuing my experiments to build the latest linaro gcc 4.6 series for android on ubuntu maverick, I managed to get a first bare metal build going.
Here the instructions that made me succeed:
First use android repo to get stuff from asac’s android toolchain repository on gitorious (yes, before you ask: as soon as I feel a bit more comfortable about what I am doing here, all this will move to git.linaro.org!):
repo init \
-u git://gitorious.org/asac-android-toolchain/manifest.git \
-b gcc-linaro-4.6-master
repo sync
Next create an objdir/ on the same directory level and cd into it
mkdir objdir cd objdir
now ./configure with appropriate versions and build it using multiple cores
../build/configure --target=arm-eabi --prefix=$HOME/linaro-android-arm \
--with-gcc-version=4.6+linaro --with-binutils-version=2.19 \
--with-mpfr-version=2.4.1 --disable-libquadmath
make -j4
run make install and try to produce an object file
make install
echo 'int test() {}' > test.c
$HOME/linaro-android-arm/bin/arm-*gcc -c -o test.o test.c
You can also try to produce a binary or -shared library, but that fill fail complaining about missing crt*.o etc. as this is just bare metal build and it doesn’t know about bionic yet …