Hi,
For the last week I've been trying to build a newer gcc cross compiler
for a mips32 architecture using newlib with gcc3.3 on redhat 8.0.
All is fine until I try to build a simple program against this new
compiler it complains about a lack of crt0.o.
This looks on the face of it to be a newlib problem which although
contains a crt0.S never seems to get compiled in libgloss. I've attached
the method I used to build the compiler below this mail.
My question is have I done anything that looks wrong in the above,
should I really be using glibc instead, any extra patches, its all
wrong/fine?
Any recommendations appreciated.
Cheers
Richard
---------
what you need:
binutils-2.13<ftp://ftp.gnu.org/gnu/binutils/>
newlib-1.10.0<ftp://sources.redhat.com/pub/newlib/index.html>
gcc3.3 <ftp://ftp.mirror.ac.uk/sites/sources.redhat.com/pub/gcc/>
get the tars from
// Setup a GNU directory
mkdir GNU
cd GNU
// setup some environment vars
export host=i686-pc-linux
export target=mips-mips-elf
export prefix=<where ever you want to install the compiler>
// untar the files
tar -zxvf <whatever>.tar
// make some target directories
mkdir build-binutils build-gcc build-newlib
//configure, make and install binutils
cd build-binutils
../binutils-2.13/configure
--host=$host
--target=$target
--prefix=$prefix
--with-gnu-as
--with-gnu-ld
make CFLAGS=-O2 LANGUAGES="c c++"
make install LANGUAGES="c c++"
// configure and make the static c lib
cd ../build-gcc
../gcc3.3/configure --enable-languages=c
--enable-multilib=no
--with-cpu=mips32
--with-newlib
--target=mips-mips-elf
--prefix=$prefix
--with-gnu-as
--with-gnu-ar
make
make install
// now build newlib
cd ../build-newlib
../newlib-1.10.0/configure --host=$target --prefix=$prefix --with-gnu-as
--with-gnu-ld --with-newlib make CC_FOR_TARGET=$prefix/$target/bin/gcc
AS_FOR_TARGET=$prefix/$target/bin/as
LD_FOR_TARGET=$prefix/$target/bin/ld
AR_FOR_TARGET=$prefix/$target/bin/ar
RANLIB_FOR_TARGET=$prefix/$target/bin/ranlib
make install
// now the tricky bit building the c++ compiler
// if you try
cd ../build-gcc
../gcc3.3/configure --enable-languages=c++
--enable-multilib=no
--with-cpu=mips32
--with-newlib
--target=mips-mips-elf
--prefix=$prefix
--with-gnu-as
--with-gnu-ar
make
// you will get errors like
~/xgcc/gcc-3.3/libiberty/hashtab.c: In function `higher_prime_number':
~/xgcc/gcc-3.3/libiberty/hashtab.c:133: warning: implicit declaration
of function `abort'
~/xgcc/gcc-3.3/libiberty/hashtab.c: In function `htab_create':
~/xgcc/gcc-3.3/libiberty/hashtab.c:204: error: `free' undeclared
(first use in this function)
~/xgcc/gcc-3.3/libiberty/hashtab.c:204: error: (Each undeclared
identifier is reported only once
~/xgcc/gcc-3.3/libiberty/hashtab.c:204: error: for each function it
appears in.)
~/xgcc/gcc-3.3/libiberty/hashtab.c: In function `htab_try_create':
~/xgcc/gcc-3.3/libiberty/hashtab.c:214: error: `calloc' undeclared
(first use in this function)
~/xgcc/gcc-3.3/libiberty/hashtab.c:214: error: `free' undeclared
(first use in this function)
make[2]: *** [hashtab.o] Error 1
make[2]: Leaving directory
`~/xgcc/obj/m68k-elf/m68k-elf-gcc/m68k-elf/libiberty'
make[1]: *** [install-target-libiberty] Error 2
make[1]: Leaving directory `~/xgcc/obj/m68k-elf/m68k-elf-gcc'
make: *** [install-gcc] Error 2
// According to Peter Barada you should add the hashtab.c portion of
http://gcc.gnu.org/ml/gcc-patches/2003-04/msg00726.html
// this is basically adds #include <malloc.h> into hashtab.c
// add the malloc header in your code into the /libiberty/hashtab.c file
// if you try to configure again you'll get more errors like In file
included from
../../../../gcc-3.3/libstdc++-v3/libsupc++/eh_alloc.cc:33:
~/build-gcc/mipsisa32-elf/libstdc++-v3/include/cstdlib:86: `div_t' not
declared
~/build-gcc/mipsisa32-elf/libstdc++-v3/include/cstdlib:87: `ldiv_t' not
declared
~/build-gcc/mipsisa32-elf/libstdc++-v3/include/cstdlib:97: `div' not
declared
~/build-gcc/mipsisa32-elf/libstdc++-v3/include/cstdlib:102: `ldiv' not
declared
~/build-gcc/mipsisa32-elf/libstdc++-v3/include/cstdlib:104: `mblen' not
declared
~/build-gcc/mipsisa32-elf/libstdc++-v3/include/cstdlib:105: `mbstowcs'
not declared
~/build-gcc/mipsisa32-elf/libstdc++-v3/include/cstdlib:106: `mbtowc' not
declared
~/build-gcc/mipsisa32-elf/libstdc++-v3/include/cstdlib:115: `wcstombs'
not declared
~/build-gcc/mipsisa32-elf/libstdc++-v3/include/cstdlib:116: `wctomb' not
declared
~/build-gcc/mipsisa32-elf/libstdc++-v3/include/cstdlib:122: syntax error
before `(' token
make[3]: *** [eh_alloc.lo] Error 1
make[3]: Leaving directory
`~/build-gcc/mipsisa32-elf/libstdc++-v3/libsupc++'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory
`~/build-gcc/mipsisa32-elf/libstdc++-v3'
make[1]: *** [all-recursive-am] Error 2
make[1]: Leaving directory
`~/build-gcc/mipsisa32-elf/libstdc++-v3'
make: *** [all-target-libstdc++-v3] Error 2
// this is a header file problem according to Henri Girard
// the configure should be modified to
../gcc3.3/configure --enable-languages=c++
--enable-multilib=no
--with-cpu=mips32
--with-newlib
--target=mips-mips-elf
--prefix=$prefix
--with-gnu-as
--with-gnu-ar
--with-headers=$prefix/$target/include
// also delete the copy of stdlib.h in ~build-gcc
make
make install