Problems compiling GCC3.0 for powerpc-elf target on X86 linux

["Mark Lancisi" <mlancisi at netezza dot com>]

Looking for a little help..

I'm attempting to build the GCC3.0 cross compiler for the powerpc-elf target on a native X86 Red Hat 7.0 Linux box.

 

I'm using the following:

 

GCC - 3.0

binutils - 2.10.1

newlib - 1.9.0

gdb - 5.0

 

TARGET = powerpc-elf

PREFIX = /usr/local/powerpc-elf

Common build directory for gcc, binutils, newlib - /home/mlancisi/build_binutils

GCC Source dir - /home/mlancisi/gcc-3.0

 

 

Thusfar I have run into two problems, both during the complete full build of GCC (binutils, bootstrap gcc, and newlib all built fine.. I have not yet built the debugger.. )

 

The first problem was with vsprintf.c in libiberty. Command line and error as follows:

 

/home/mlancisi/build_binutils/gcc/xgcc -B/home/mlancisi/build_binutils/gcc/ -B/usr/local/powerpc-elf/powerpc-elf/bin/ -B/usr/local/powerpc-elf/powerpc-elf/lib/ -isystem /usr/local/powerpc-elf/powerpc-elf/include -c -DHAVE_CONFIG_H -g -O2 -W -Wall -I. -I../../../gcc-3.0/libiberty/../include  -W -Wall -Wtraditional -pedantic ../../../gcc-3.0/libiberty/vsprintf.c
../../../gcc-3.0/libiberty/vsprintf.c: In function `vsprintf':
../../../gcc-3.0/libiberty/vsprintf.c:47: structure has no member named `_flag'
../../../gcc-3.0/libiberty/vsprintf.c:47: `_IOWRT' undeclared (first use in this function)
../../../gcc-3.0/libiberty/vsprintf.c:47: (Each undeclared identifier is reported only once
../../../gcc-3.0/libiberty/vsprintf.c:47: for each function it appears in.)
../../../gcc-3.0/libiberty/vsprintf.c:47: `_IOSTRG' undeclared (first use in this function)
../../../gcc-3.0/libiberty/vsprintf.c:48: structure has no member named `_ptr'
../../../gcc-3.0/libiberty/vsprintf.c:49: structure has no member named `_cnt'
../../../gcc-3.0/libiberty/vsprintf.c:51: warning: implicit declaration of function `_doprnt'
make[1]: *** [vsprintf.o] Error 1
make[1]: Leaving directory `/home/mlancisi/build_binutils/powerpc-elf/libiberty'
make: *** [all-target-libiberty] Error 2

 

====

To get around this issue, based on some info obtained in the crossgcc mailing list archives, I simply stubbed out vsprintf.c (ifdeffed out actually) . I was unable to find powerpc-elf header files which likely would have also fixed the problem.. I think I should be all set here because I believe vsprintf is available in the standard lib... If anyone knows different, please let me know!!!

 

 

##########################

 

Second issue - Once vsprintf was stubbed out, the build continued on until it got to another problem, mentioned more recently in the archives, as follows:

 

/home/mlancisi/build_binutils/gcc/xgcc -B/home/mlancisi/build_binutils/gcc/ -nostdinc++ -L/home/mlancisi/build_binutils/powerpc-elf/nof/libstdc++-v3/src -L/home/mlancisi/build_binutils/powerpc-elf/nof/libstdc++-v3/src/.libs -B/usr/local/powerpc-elf/powerpc-elf/bin/ -B/usr/local/powerpc-elf/powerpc-elf/lib/ -isystem /usr/local/powerpc-elf/powerpc-elf/include -msoft-float -mrelocatable-lib -mno-eabi -mstrict-align -I../../../../../gcc-3.0/libstdc++-v3/../gcc -I../../../../../gcc-3.0/libstdc++-v3/../include -I../../../../../gcc-3.0/libstdc++-v3/include -I../../../../../gcc-3.0/libstdc++-v3/include/std -I../../../../../gcc-3.0/libstdc++-v3/include/c_std -I../include -I../../../../../gcc-3.0/libstdc++-v3/libsupc++ -g -O2 -msoft-float -mrelocatable-lib -mno-eabi -mstrict-align -fno-implicit-templates -Wall -Wno-format -W -Wwrite-strings -Winline -fdiagnostics-show-location=once -g -c ../../../../../gcc-3.0/libstdc++-v3/libsupc++/new_op.cc -o new_op.o
/tmp/ccH7kBDC.s: Assembler messages:
/tmp/ccH7kBDC.s:234: Error: Relocation cannot be done when using -mrelocatable
make[7]: *** [new_op.lo] Error 1
make[7]: Leaving directory `/home/mlancisi/build_binutils/powerpc-elf/nof/libstdc++-v3/libsupc++'
make[6]: *** [all-recursive] Error 1
make[6]: Leaving directory `/home/mlancisi/build_binutils/powerpc-elf/nof/libstdc++-v3'
make[5]: *** [all-recursive-am] Error 2
make[5]: Leaving directory `/home/mlancisi/build_binutils/powerpc-elf/nof/libstdc++-v3'
make[4]: *** [multi-do] Error 1
make[4]: Leaving directory `/home/mlancisi/build_binutils/powerpc-elf/libstdc++-v3'
make[3]: *** [all-multi] Error 2
make[3]: Leaving directory `/home/mlancisi/build_binutils/powerpc-elf/libstdc++-v3'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/home/mlancisi/build_binutils/powerpc-elf/libstdc++-v3'
make[1]: *** [all-recursive-am] Error 2
make[1]: Leaving directory `/home/mlancisi/build_binutils/powerpc-elf/libstdc++-v3'
make: *** [all-target-libstdc++-v3] Error 2

 

===

I found the recent discussion in the archives regarding this issue as pertains to the powerpc-eabi cross compiler. The question is, is there a generic fix for this as yet? Or a workaround? I'd rather not have to  go back to GCC 2.95.3 to build the powerpc-elf cross compiler, as we use the newly released GCC3.0 for our native compiles...

 

 

Thanks in advance for ANY help!!

 

 

 

markl