newbie : cross compiler for powerpc from linux i686 RH7.2

[Dennis Tubbs]

Vishwas,
Most of your errors should be resolved in the linker command file, which
leads me to believe you are not using one.  _start is usually defined in the
file crt0.o or something similar.  See the linker switch -T.

Dennis

-----Original Message-----
From: crossgcc-owner@sources.redhat.com
[mailto:crossgcc-owner@sources.redhat.com]On Behalf Of
Vishwas.More@nokia.com
Sent: Wednesday, September 11, 2002 12:57 PM
To: crossgcc@sources.redhat.com
Cc: Vishwas.More@nokia.com
Subject: newbie : cross compiler for powerpc from linux i686 RH7.2


Hi gurus

sorry for this question ( you must have seen it many times ).. but even
after going thru the CrossGCC and lists i am having problems getting a cross
compiled gcc for powerpc from a linux Red hat 7.2 host..

I dont get any compilation errors during the build steps ( i  have given the
steps in the end of this mail ) :
but when i try to compile a simple printf hello program
i get a LOT of errors :
-------------------------------------
vmore@EFS_VW2[133] >) powerpc-eabi-gcc hello.c
/usr/vmore/gnutools/cross-power-eabi-tools/target/powerpc-eabi/bin/ld:
warning: cannot find entry symbol _start; defaulting to 01800074
/tmp/ccnaV6fl.o: In function `main':
/tmp/ccnaV6fl.o(.text+0x24): undefined reference to `printf'
/usr/vmore/gnutools/cross-power-eabi-tools/target/lib/gcc-lib/powerpc-eabi/2
.95.3/libgcc.a(eabi.o)(.got2+0x8): undefined reference to `__SDATA_START__'
/usr/vmore/gnutools/cross-power-eabi-tools/target/lib/gcc-lib/powerpc-eabi/2
.95.3/libgcc.a(eabi.o)(.got2+0xc): undefined reference to `__SBSS_END__'
/usr/vmore/gnutools/cross-power-eabi-tools/target/lib/gcc-lib/powerpc-eabi/2
.95.3/libgcc.a(eabi.o)(.got2+0x14): undefined reference to
`__SDATA2_START__'
/usr/vmore/gnutools/cross-power-eabi-tools/target/lib/gcc-lib/powerpc-eabi/2
.95.3/libgcc.a(eabi.o)(.got2+0x18): undefined reference to `__SBSS2_END__'
/usr/vmore/gnutools/cross-power-eabi-tools/target/lib/gcc-lib/powerpc-eabi/2
.95.3/libgcc.a(eabi-ctors.o): In function `__do_global_ctors':
/usr/vmore/gnutools/cross-power-eabi-tools/build/gcc/gcc/eabi-ctors.c(.text+
0x1e): undefined reference to `__CTOR_END__'
/usr/vmore/gnutools/cross-power-eabi-tools/build/gcc/gcc/eabi-ctors.c(.text+
0x26): undefined reference to `__CTOR_LIST__'
/usr/vmore/gnutools/cross-power-eabi-tools/build/gcc/gcc/eabi-ctors.c(.text+
0x2a): undefined reference to `__CTOR_LIST__'
/usr/vmore/gnutools/cross-power-eabi-tools/build/gcc/gcc/eabi-ctors.c(.text+
0x2e): undefined reference to `__CTOR_END__'
/usr/vmore/gnutools/cross-power-eabi-tools/target/lib/gcc-lib/powerpc-eabi/2
.95.3/libgcc.a(eabi-ctors.o): In function `__do_global_dtors':
/usr/vmore/gnutools/cross-power-eabi-tools/build/gcc/gcc/eabi-ctors.c(.text+
0xae): undefined reference to `__DTOR_LIST__'
/usr/vmore/gnutools/cross-power-eabi-tools/build/gcc/gcc/eabi-ctors.c(.text+
0xb6): undefined reference to `__DTOR_END__'
/usr/vmore/gnutools/cross-power-eabi-tools/build/gcc/gcc/eabi-ctors.c(.text+
0xba): undefined reference to `__DTOR_END__'
/usr/vmore/gnutools/cross-power-eabi-tools/build/gcc/gcc/eabi-ctors.c(.text+
0xbe): undefined reference to `__DTOR_LIST__'
/usr/vmore/gnutools/cross-power-eabi-tools/target/lib/gcc-lib/powerpc-eabi/2
.95.3/libgcc.a(eabi-ctors.o): In function `__do_global_ctors':
/usr/vmore/gnutools/cross-power-eabi-tools/build/gcc/gcc/eabi-ctors.c(.sdata
+0x0): undefined reference to `__init'
/usr/vmore/gnutools/cross-power-eabi-tools/build/gcc/gcc/eabi-ctors.c(.sdata
+0x4): undefined reference to `__fini'
collect2: ld returned 1 exit status
vmore@EFS_VW2[134] >)
-----------------------------------


I think i am screwing up something with the libraries, but anyways here is
what i have done..

TOOLS used :

binutils-2.13.90.0.4.tar  , gcc-2.95.3.tar , newlib-1.9.0.tar
( planning to use gdb-5.2.1.tar later )

Host Details :
Linux  mvtest 2.4.7-10enterprise #1 SMP  i686 unknown
Red Hat 7.2

target=powerpc-eabi
prefix=/usr/vmore/gnutools/cross-gcc/target


Steps :

cd /usr/vmore/gnutools/cross-gcc
mkdir src build target test
cd /usr/vmore/gnutools/cross-gcc/src
tar -xvf ../../download/binutils-2*  gcc* newlib*

1. Compiling bintuils
   cd /usr/vmore/gnutools/cross-gcc/build
  ../../src/binutils*/configure --target=$target --prefix=$prefix -v
  make all install

 	 No compilation errors

2. Compiling gcc    ( removed libf2c from gcc*/src and linked ln -s
../newlib* newlib in gcc*/src )
   cd /usr/vmore/gnutools/cross-gcc/build


../../src/binutils*/configure --target=$target --prefix=$prefix --with-newli
b --with-header=/usr/vmore/gnutools/cross-gcc/src/newlib-1.9.0/newlib/libc/i
nclude -v
  make cross LANGUAGES="c c++"
make install

	No compilation errors

3. Test code compilation

   Added $prefix in my PATH
  A test c program with a single printf in it,
    powerpc-eabi-gcc hello.c

   LOT OF ERRORS ..

pls advice

thanks
vishwas








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