I am trying to create a gcc cross compiler on Mac OS X, target arm-elf-eabi.
This is what I have done so far:
Install gcc and configure the environment
I tried not to use clang / llvm on Mac, so I used gcc-4.8 from brew.
brew tap homebrew/versions
brew install gcc48
brew install binutils
In front of the building, I set environment variables:
export CC=/usr/local/bin/gcc-4.8
export CXX=/usr/local/bin/g++-4.8
export CPP=/usr/local/bin/cpp-4.8
export LD=/usr/local/bin/gcc-4.8
export PREFIX=/opt/cross
export TARGET=arm-elf-eabi
build binutils
Loading the binutils source, then creating the assembly directory and the ability to build binutils without problems:
mkdir build-binutils
cd build-binutils
../binutils-2.24/configure --target=$TARGET --prefix=$PREFIX --with-sysroot --enable-64-bit-bfd --disable-shared --disable-werror --disable-nls
make configure-host
make LDFLAGS="-all-static"
sudo make install
gcc building
Download gcc 4.8 source and start the build process
mkdir build-gcc
cd build-gcc
../gcc-4.8.3/configure --target=$TARGET --prefix=$PREFIX --disable-nls --enable-languages=c,c++ --without-headers --disable-shared --enable-multilib --with-sysroot --disable-werror
make configure-host
make all-gcc << ERROR
make all-target-libgcc
However, I got an invalid listing optionr`` error in the build.
/usr/local/bin/g++-4.8 -c -g -O2 -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE -fno-exceptions -fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wmissing-format-attribute -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -DHAVE_CONFIG_H -DGENERATOR_FILE -I. -Ibuild -I../../gcc-4.8.3/gcc -I../../gcc-4.8.3/gcc/build -I../../gcc-4.8.3/gcc/../include -I../../gcc-4.8.3/gcc/../libcpp/include \
-o build/genconstants.o ../../gcc-4.8.3/gcc/genconstants.c
Assembler messages:
Fatal error: invalid listing option `r'
make[2]: *** [build/genconstants.o] Error 1
make[1]: *** [all-gcc] Error 2
Alternative construction process
I tried using the default compiler from Mac with the following configuration:
./contrib/download_prerequisites
CFLAGS="-arch i386 -arch x86_64 -Wno-error=deprecated-declarations -Wno-error=unused-variable -Wno-error=unused-function" ../gcc-4.8.3/configure --target=$TARGET --prefix=$PREFIX --disable-nls --enable-languages=c --without-headers --disable-shared --enable-multilib
make all-gcc, make all-target-libgcc, gcc- clang/llvm.
, as Apple - , gcc ( clang/llvm ).
? ?