how to get a prebuilt glibc

[Xiaogeng (Shawn) Jin]

Kai and the list,

It is a stupid question. But I really have no idea about the answer.

As Kai recommended in many messages in this list, a prebuilt glibc is 
necessary to build a bootstrap gcc before building a complete cross 
compiler. My target is powerpc-linux. Actually prebuilt glibc can be 
obtained from various sources, such as SuSE, YellowDog. But the problem 
is that these binary RPMs cannot be relocated. And I only have 
i686/RedHat hosts.

Well, I got target machine's header files and some libraries (lib?.a and 
*crt*.o) from HardHat 2.0 (MontaVista). But the target (ppc_8xx) is 
slightly different from what I use (powerpc-linux). And they are 
installed under $PREFIX/$TARGET/include and $PREFIX/$TARGET/lib, 
respectively. Unfortunately I still got some error when making the 
bootstrap gcc.

1. First, I didn't copy the libraries, as I remembered that only 
prebuilt glibc's header files are required as Kai mentioned in some 
message. Maybe I'm wrong. The following error messages show up. Well, 
this is easy to solve by copying all necessary libraries.

Making all in makeinfo
make[3]: Entering directory `/u/xjin/code/b2h-gcc/texinfo/makeinfo'
gcc -DHAVE_CONFIG_H -I. -I../../../gcc-2.95.3/texinfo/makeinfo -I.. 
-I../../../gcc-2.95.3/texinfo/lib -I../intl 
-DLOCALEDIR=\"/opt/xdev/gnuppc8xx/share/locale\"  -g -O2 -c 
../../../gcc-2.95.3/texinfo/makeinfo/makeinfo.c
gcc -DHAVE_CONFIG_H -I. -I../../../gcc-2.95.3/texinfo/makeinfo -I.. 
-I../../../gcc-2.95.3/texinfo/lib -I../intl 
-DLOCALEDIR=\"/opt/xdev/gnuppc8xx/share/locale\"  -g -O2 -c 
../../../gcc-2.95.3/texinfo/makeinfo/multi.c
gcc -g -O2  -o makeinfo  makeinfo.o multi.o ../lib/libtxi.a
/opt/xdev/gnuppc8xx/powerpc-linux/bin/ld: cannot open crt1.o: No such 
file or directory
collect2: ld returned 1 exit status

2. After copying all necessary header files and libraries, I still got 
the error message.

gcc -c -DCROSS_COMPILE -DIN_GCC -DHAIFA    -g -O2  -DHAVE_CONFIG_H 
-I. -I../../gcc-2.95.3/gcc -I../../gcc-2.95.3/gcc/config 
-I../../gcc-2.95.3/gcc/../include \
   ../../gcc-2.95.3/gcc/gencheck.c
rm -f obstack.c
ln -s ../../gcc-2.95.3/gcc/../libiberty/obstack.c obstack.c
gcc -c -DCROSS_COMPILE -DIN_GCC -DHAIFA    -g -O2  -DHAVE_CONFIG_H 
-I. -I../../gcc-2.95.3/gcc -I../../gcc-2.95.3/gcc/config 
-I../../gcc-2.95.3/gcc/../include obstack.c
gcc -DCROSS_COMPILE -DIN_GCC -DHAIFA    -g -O2  -DHAVE_CONFIG_H  -o 
gencheck \
  gencheck.o ` case "obstack.o" in ?*) echo obstack.o ;; esac ` ` case 
"" in ?*) echo  ;; esac ` ` case "" in ?*) echo  ;; esac `  ` case "" in 
?*) echo  ;; esac ` ` case "" in ?*) echo  ;; esac `
./gencheck > tmp-check.h
/bin/sh: ./gencheck: cannot execute binary file
make[1]: *** [s-check] Error 126
make[1]: Leaving directory `/u/xjin/code/b2h-gcc/gcc'
make: *** [all-gcc] Error 2

The built gencheck cannot be run on the host. Is it in target format? Why?

Packages I used are gcc-2.95.3, binutils-2.12.1, and glibc-2.2.5. The 
configuration for gcc is
../gcc-2.95.3/configure 
--with-gcc-version-trigger=/u/xjin/code/gcc-2.95.3/gcc/version.c 
--host=i686-pc-linux-gnu --target=powerpc-linux 
--prefix=/opt/xdev/gnuppc8xx --disable-shared 
--with-headers=/opt/xdev/gnuppc8xx/powerpc-linux/include 
--enable-languages=c --norecursion

Thank you very much.

- Shawn.


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