gcc <-> glibc circular dependency? FAQ for embedded systems

knighttof3_at_yahoo.com
Date: 04/27/05

  • Next message: Yacine: "Initramfs/tmpfs and df issue." 
    Date: 27 Apr 2005 11:03:54 -0700

    Hi all,

      I've googled this topic and found numerous people in my circumstance
    but did not find a clear concise answer on how to develop the toolchain
    for cross-compiling when gcc seems to depend on glibc and glibc depends
    on gcc.

      Sorry, that was clear as mud. Here's what I am trying to do,
    following Karim Yaghmour's book. I am trying to compile gcc-4.0.0 and
    glibc-2.3.5. The _bootstrap_ gcc that I create cannot compile any C
    program (such as "main() {return 0;}") because it does not find crt1.o.

    I believe crt1.o is part of glibc, which I would compile next, except
    that during its configuration, it invokes my recently built gcc and
    fails to configure.

    Here's how I configure gcc (I've also tried --with-newlib, without
    --enable-bootstrap, without enable-cross and recompiled gcc in each
    case). I am sure I've to change the confiure options somehow so that
    the newly built gcc does not look for crt1.o, but how do I do that?

    ./i386-linux-gcc -v
    Using built-in specs.
    Target: i386-linux
    Configured with: /build-tools/gcc-4.0.0/configure --target=i386-linux
    --prefix=/mypath/tools --disable-shared --enable-cross
    --with-headers=/mypath/tools/i386-linux/include --without-newlib
    --without-glibc --enable-languages=c --enable-bootstrap
    Thread model: posix
    gcc version 4.0.0

    gcc compilation and install goes through fine (commands were 'make
    all-gcc ; make install-gcc' - should I be using something else here?).
    Next I try to configure glibc:

    ../glibc-2.3.5/configure --host=$TARGET --prefix="/usr"
    --enable-add-ons --enable-static-nss
    --with-headers=$TARGET_PREFIX/include

    This fails, config.log shows

    configure:7072: test -s conftest.o
    configure:7075: $? = 0
    configure:7086: result: yes
    configure:7089: checking size of long double
    configure:7408: i386-linux-gcc -o conftest -g -O2 conftest.c >&5
    /mypath/tools/lib/gcc/i386-linux/4.0.0/../../../../i386-linux/bin/ld:
    crt1.o: No such file: No such file or directory
    collect2: ld returned 1 exit status
    configure:7411: $? = 1
    configure: program exited with status 1

    And sure enough, there's no crt1.o in the entire toolchain yet. How do
    I configure/compile glibc or anything else using my new gcc?

    - Knight.

  • Next message: Yacine: "Initramfs/tmpfs and df issue."

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