David A David A -3 years ago 291
C Question

Building GCC make: *** [all] Error 2

I am trying to set up a cross-compiler for i686-elf on Ubuntu following the OSDev GCC Cross-Compiler Tutuorial. However, the code to set up GCC fails to build every time. I know my sources are not out of date because I

sudo apt-get update
'd before doing anything.

In order to get the packages I needed, I did:

sudo apt-get install g++
sudo apt-get install make
sudo apt-get install bison
sudo apt-get install flex
sudo apt-get install libgmp3-dev
sudo apt-get install libmpfr-dev libmpfr-doc libmpfr4 libmpfr4-dbg
sudo apt-get install mpc
sudo apt-get install texinfo
sudo apt-get install libcloog-isl-dev


I think there is no problem with that method?

Then, with gcc-5.2.0 and binutils-2.25.1 (in ubuntu, bintuils appears to not work with anything above that old version) I installed binutils just fine. I went to build gcc but when I typed in make, I got the following error:

Unfortunately, I can't copy+paste 30 pages in, but this all the code near the end:

checking command to parse nm output from gcc -m32 object... failed
checking how to run the C preprocessor... /lib/cpp
checking for ANSI C header files... no
checking for sys/types.h... no
checking for sys/stat.h... no
checking for stdlib.h... no
checking for string.h... no
checking for memory.h... no
checking for strings.h... no
checking for inttypes.h... no
checking for stdint.h... no
checking for unistd.h... no
checking for dlfcn.h... no
checking for objdir... .libs
checking if gcc -m32 supports -fno-rtti -fno-exceptions... no
checking for gcc -m32 option to produce PIC... -fPIC -DPIC
checking if gcc -m32 PIC flag -fPIC -DPIC works... yes
checking if gcc -m32 static flag -static works... no
checking if gcc -m32 supports -c -o file.o... yes
checking if gcc -m32 supports -c -o file.o... (cached) yes
checking whether the gcc -m32 linker (ld -m elf_x86_64 -m elf_i386) supports shared libraries... yes
checking whether -lc should be explicitly linked in... no
checking dynamic linker characteristics... configure: error: Link tests are not allowed after GCC_NO_EXECUTABLES.
Makefile:9590: recipe for target 'configure-zlib' failed
make[1]: *** [configure-zlib] Error 1
make[1]: Leaving directory '/home/david/scr'
Makefile:876: recipe for target 'all' failed
make: *** [all] Error 2


And this is the part (right after that) where something really bad happens:

checking dynamic linker characteristics... configure: error: Link tests are not allowed after GCC_NO_EXECUTABLES.
Makefile:9590: recipe for target 'configure-zlib' failed
make[1]: *** [configure-zlib] Error 1
make[1]: Leaving directory '/home/david/scr'
Makefile:876: recipe for target 'all' failed
make: *** [all] Error 2


Can anyone tell me what I am doing wrong and how I would fix it?

Thanks!

Answer Source

The problem was that I wasn't installing mpc from source.

Here is the finished file (setup-gcc.sh):

####################################
echo Stage 1 - Building Dependencies
####################################

# make a working directory
cd $HOME/Documents
rm -rf Cross
mkdir Cross
cd Cross

# install or update all apt-get dependencies
sudo apt-get update
sudo apt-get upgrade
sudo apt-get install gcc                   # not cross
sudo apt-get install g++
sudo apt-get install make
sudo apt-get install bison
sudo apt-get install flex
sudo apt-get install gawk
sudo apt-get install libgmp3-dev
sudo apt-get install libmpfr-dev libmpfr-doc libmpfr4 libmpfr4-dbg
sudo apt-get install mpc
sudo apt-get install texinfo               # optional
sudo apt-get install libcloog-isl-dev      # optional
sudo apt-get install build-essential
sudo apt-get install glibc-devel
sudo apt-get -y install gcc-multilib libc6-i386

# download and unpack necessary files
wget http://ftpmirror.gnu.org/binutils/binutils-2.25.1.tar.gz
wget http://ftpmirror.gnu.org/gcc/gcc-5.3.0/gcc-5.3.0.tar.gz
wget http://ftpmirror.gnu.org/mpc/mpc-1.0.3.tar.gz
for f in *.tar*; do tar zvxf $f; done

# create installation directory
mkdir Install
export PREFIX="$HOME/Documents/Cross/Install"
export TARGET=i686-elf
export PATH="$PREFIX/bin:$PATH"

################################
echo Stage 2 - Building Compiler
################################

# install mpc
mkdir build-mpc
cd build-mpc
../mpc-1.0.3/configure --prefix="$PREFIX"
make -j2
make -j2 check
make -j2 install
cd ..

# install binutils
mkdir build-binutils
cd build-binutils
../binutils-2.25.1/configure --target=$TARGET --prefix="$PREFIX" --with-sysroot --disable-nls --disable-werror
make -j2
make -j2 install
cd ..

# install gcc
mkdir build-gcc
cd build-gcc
../gcc-5.3.0/configure --target=$TARGET --prefix="$PREFIX" --disable-nls --enable-languages=c,c++ --without-headers --with-mpc="$PREFIX"
make -j2 all-gcc
make -j2 all-target-libgcc
make -j2 install-gcc
make -j2 install-target-libgcc

Once you have it installed, you can run it with:

export PREFIX="$HOME/Documents/Cross/Install"
export TARGET=i686-elf
$PREFIX/bin/$TARGET-gcc --version

Unfortunately, doing this inside of an alias or bash script doesn't seem to properly launch it, so, unless this gets fixed, you might have to just store the script in a text file and copy-paste it into terminal every time you reboot.

To uninstall your cross-compiler, simply delete the $HOME/Documents/Cross directory.

As a final note, changing the installation directory or target is as easy as changing the value of $PREFIX or $TARGET, but I wouldn't recommend it, because you may run into other unexpected problems.

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