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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 ------ Want more information? See the CrossGCC FAQ, http://www.objsw.com/CrossGCC/ Want to unsubscribe? Send a note to crossgcc-unsubscribe@sources.redhat.com ------ Want more information? See the CrossGCC FAQ, http://www.objsw.com/CrossGCC/ Want to unsubscribe? Send a note to crossgcc-unsubscribe@sources.redhat.com
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