Re: Building gcc for an os less system

[<vishu27 at cox dot net>]

Hi,
   I compiled newlib with the following options 

../newlib-1.11.0/configure --target=xscale-elf --prefix=<bin-directory>/xscale-elf 
make all install info install-info

It went through fine. I then wanted to install gcc with C++ support with the following command

../gcc-3.1/configure --target=xscale-elf --prefix=<bin-directory>/xscale-elf --enable-languages=c,c++ --with-local-prefix=<bin-directory>/xscale-elf/xscale-elf 

make all install

On executing the make command, I get the following error

In file included from ../../../../gcc-3.1/libstdc++-v3/libsupc++/eh_alloc.cc:34:
/nfs/iadusr02/vsankara/xscale-gnu/build-gcc/xscale-elf/libstdc++-v3/include/cstdlib:86: `
   div_t' not declared
/nfs/iadusr02/vsankara/xscale-gnu/build-gcc/xscale-elf/libstdc++-v3/include/cstdlib:87: `
   ldiv_t' not declared
/nfs/iadusr02/vsankara/xscale-gnu/build-gcc/xscale-elf/libstdc++-v3/include/cstdlib:97: `
   div' not declared
/nfs/iadusr02/vsankara/xscale-gnu/build-gcc/xscale-elf/libstdc++-v3/include/cstdlib:102: `
   ldiv' not declared
/nfs/iadusr02/vsankara/xscale-gnu/build-gcc/xscale-elf/libstdc++-v3/include/cstdlib:104: `
   mblen' not declared
/nfs/iadusr02/vsankara/xscale-gnu/build-gcc/xscale-elf/libstdc++-v3/include/cstdlib:105: `
   mbstowcs' not declared
/nfs/iadusr02/vsankara/xscale-gnu/build-gcc/xscale-elf/libstdc++-v3/include/cstdlib:106: `
   mbtowc' not declared
/nfs/iadusr02/vsankara/xscale-gnu/build-gcc/xscale-elf/libstdc++-v3/include/cstdlib:115: `
   wcstombs' not declared
/nfs/iadusr02/vsankara/xscale-gnu/build-gcc/xscale-elf/libstdc++-v3/include/cstdlib:116: `
   wctomb' not declared
/nfs/iadusr02/vsankara/xscale-gnu/build-gcc/xscale-elf/libstdc++-v3/include/cstdlib:122: syntax
   error before `(' token
make[3]: *** [eh_alloc.lo] Error 1
make[3]: Leaving directory `/nfs/iadusr02/vsankara/xscale-gnu/build-gcc/xscale-elf/libstdc++-v3/libsupc++'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/nfs/iadusr02/vsankara/xscale-gnu/build-gcc/xscale-elf/libstdc++-v3'
make[1]: *** [all-recursive-am] Error 2
make[1]: Leaving directory `/nfs/iadusr02/vsankara/xscale-gnu/build-gcc/xscale-elf/libstdc++-v3'
make: *** [all-target-libstdc++-v3] Error 2


Could someone please advice how I can resolve this. Also please reply to my previous question. I would really appreciate your answers.

Thanks
Vish
> 
> From: <vishu27@cox.net>
> Date: 2003/10/28 Tue PM 12:20:14 EST
> To: crossgcc@sources.redhat.com
> Subject: Building gcc for an os less system
> 
> Hi,
>    I am trying to build gcc for a system without an OS and using newlib as the C library. The build is for an xscale-elf target hosted on PC linux
> 
> I have done the following already
> 
> Build binutils
> 
> cd build-binutiils
> ../binutils-2.14/configure --target=xscale-elf --prefix=<bin-directory>/xscale-efl
> make all install
> 
> Build gcc core
> 
> cd build-gcc-core
> ../gcc-3.1-core/configure --target=xscale-elf --prefix=<bin-direcotry>/xscale-elf --enable-languages=c --with-local-prefix=<bin-directory>/xscale-elf/xscale-elf --without-headers --with-newlib --disable-shared
> 
> Now I am about to build newlib. Since I am using a custom system with its own memory map, I know that I would have to write my own crt0.S, a linker script and also a syscall.c to handle some of the low level C library calls. 
> 
> I would like to know if 
> 1. I should use my own crt0.S and syscalls.c files inplace of newlibs before I build newlib or 
> 
> 2. is there a way to first build newlib and also gcc for C++ and then somehow make the system use my crt0.o and syscalls.o which I compile with xscale-elf-gcc -c crt0.S -o crt0.o and xscale-gcc-elf -c syscalls.c -o syscalls.o (after building newlib and gcc for C++)
> 
> If I use 1., how do I know which crt0.S and syscalls.c to replace. There is one at newlib/libc/sys/arm/ and another at libgloss/arm/redboot-crt0.S. How do I know which is being used when building newlib?
> 
> I would really appreciate your answers
> 
> Thanks
> Vish
> 
> 
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