Greetings,
I am in the process of building a GCC/binutils/newlib toolchain and libs.
The target system is a motorola powerpc (MPC850) based embedded system with
no operating system.
I have successfully compiled GCC, binutils, and newlib with
--target=powerpc-elf
If I use --target=powerpc-eabi then I have problems. There are more details
of the hassles I'm having, but first I'll just describe how I'm going about
compiling everything.
In my $HOME directory I have created the following tree structure for compiling
the various packages:-
/home/jeff
|
+-gnu
| |
| +-src <-- source tarballs (.tar.gz, .tar.bz2) extracted from here
| | |
| | +-binutils-2.17 <-- binutils source tree below here
| | |
| | +-gcc-4.1.1 <-- gcc source tree below here
| | |
| | +-newlib-1.14.0 <-- newlib source tree below here
| |
| +-build
| | |
| | +-binutils <-- binutils build process output below here
| | |
| | +-gcc <-- gcc build process output below here
| | |
| | +-newlib <-- newlib build process output below here
I created these variables for use in the various configure commands:-
$ export TARGET=powerpc-eabi
$ export PREFIX=/opt/crossGNU
$ export PATH=$PATH:$PREFIX/bin
I issued these commands to create the binutils. The compile went smoothly.
$ cd ~/gnu/build/binutils
$ ../../src/binutils-2.17/configure --target=$TARGET --prefix=$PREFIX
$ make all install 2>&1 | tee make.log
I then issued the following commands to make the boostrap compiler:-
$ cd ~/gnu/build/gcc
$ ../../src/gcc-4.1.1/configure --target=$TARGET --prefix=$PREFIX \
--with-newlib --without-headers --with-gnu-as --with-gnu-ld \
--disable-shared --enable-languages=c
$ make all-gcc install-gcc 2>&1 | tee make.log
So far so good.
I next attempted to create the newlib C standard libraries. I issued the
following commands and the process completed without error.
$ cd ~/gnu/build/newlib
$ ../../src/newlib-1.14.0/configure --target=$TARGET --prefix=$PREFIX
$ make all install 2>&1 | tee make.log
Next is what I issued to create the final GCC ...
$ cd ~/gnu/build/gcc
$ rm -rf *
$ ../../src/gcc-4.1.1/configure --target=$TARGET --prefix=$PREFIX \
--with-gnu-as --with-gnu-ld --with-newlib --enable-languages=c,c++
$ make all install 2>&1 | tee make.log
If $TARGET equals powerpc-elf then everything is fine and I get my compiler, libs
and tools. If $TARGET equals powerpc-eabi then this last build fails.
This is what I see in my terminal window:-
checking for ISO C99 support in <wchar.h>... no
checking for fully enabled ISO C99 support... no
configure: Debug build flags set to -g3 -O0
checking for additional debug build... no
checking for extra compiler flags for building...
checking for thread model used by GCC... single
checking for shared libgcc... configure: error: Link tests are not allowed
after GCC_NO_EXECUTABLES.
make[1]: *** [configure-target-libstdc++-v3] Error 1
make[1]: Leaving directory `/home/jeff/gnu/build/gcc'
make: *** [all] Error 2
SO I looked in the
/home/jeff/gnu/build/gcc/powerpc-eabi/libstdc++-v3/config.log
file and found several instances of the following:-
/opt/crossgnu/bin/powerpc-eabi-ld: warning: cannot find entry symbol _start;
defaulting to 01800074
/home/jeff/gnu/build/gcc/./gcc/libgcc.a(eabi.o): In function `__eabi':
/home/jeff/gnu/build/gcc/gcc/eabi.S:232: undefined reference to `__init'
/home/jeff/gnu/build/gcc/./gcc/libgcc.a(eabi.o):(.got2+0x8): undefined
reference to `__SDATA_START__'
/home/jeff/gnu/build/gcc/./gcc/libgcc.a(eabi.o):(.got2+0xc): undefined
reference to `__SBSS_END__'
/home/jeff/gnu/build/gcc/./gcc/libgcc.a(eabi.o):(.got2+0x14): undefined
reference to `__SDATA2_START__'
/home/jeff/gnu/build/gcc/./gcc/libgcc.a(eabi.o):(.got2+0x18): undefined
reference to `__SBSS2_END__'
/home/jeff/gnu/build/gcc/./gcc/libgcc.a(eabi.o):(.got2+0x1c): undefined
reference to `__GOT_START__'
/home/jeff/gnu/build/gcc/./gcc/libgcc.a(eabi.o):(.got2+0x28): undefined
reference to `__GOT_END__'
/home/jeff/gnu/build/gcc/./gcc/libgcc.a(eabi.o):(.got2+0x2c): undefined
reference to `__GOT2_START__'
/home/jeff/gnu/build/gcc/./gcc/libgcc.a(eabi.o):(.got2+0x30): undefined
reference to `__GOT2_END__'
/home/jeff/gnu/build/gcc/./gcc/libgcc.a(eabi.o):(.got2+0x34): undefined
reference to `__FIXUP_START__'
/home/jeff/gnu/build/gcc/./gcc/libgcc.a(eabi.o):(.got2+0x38): undefined
reference to `__FIXUP_END__'
/home/jeff/gnu/build/gcc/./gcc/libgcc.a(eabi.o):(.got2+0x3c): undefined
reference to `__CTOR_LIST__'
/home/jeff/gnu/build/gcc/./gcc/libgcc.a(eabi.o):(.got2+0x40): undefined
reference to `__CTOR_END__'
/home/jeff/gnu/build/gcc/./gcc/libgcc.a(eabi.o):(.got2+0x44): undefined
reference to `__DTOR_LIST__'
/home/jeff/gnu/build/gcc/./gcc/libgcc.a(eabi.o):(.got2+0x48): undefined
reference to `__DTOR_END__'
/home/jeff/gnu/build/gcc/./gcc/libgcc.a(eabi.o):(.got2+0x4c): undefined
reference to `__EXCEPT_START__'
/home/jeff/gnu/build/gcc/./gcc/libgcc.a(eabi.o):(.got2+0x50): undefined
reference to `__EXCEPT_END__'
collect2: ld returned 1 exit status
377,35 22%
It would seem that some file must be linked against but it doesn't exist, or
isn't where it's supposed to be, or there's an argument missing somewhere.
I would appreciate it greatly if someone could please shed some light on this
problem for me.
I'd like to figure out how to get GCC to compile/link in the source tree
config described above. That said, I am happy to try a combined tree build.
would building everything in a combined tree help?
Can I do that with the sources that I've downloaded? If so, how do I construct
the combined tree?
Thanks,
Jeff Lasslett
PS: I have searched a bit in the gcc-help mailing list archives with limited
success. I found the following ...
http://gcc.gnu.org/ml/gcc-help/2006-04/msg00141.html
... but it doesn't seem to contain the answer to my problem.
