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llvm-6502/utils/crosstool/ARM
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Misha Brukman e034393b15 * Allow skipping parts of the installation to be able to do it in parts if one 
phase fails and the user wants to reinstall one of the components.
* Fixed LLVM-GCC configuration flags: s/--with-gnu-{as,ld}/--with-{as,ld}/
  The former is a boolean flag, the latter is a flag that takes a path.
* Added a new flag CROSS_MARCH, defaults to armv6.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74840 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-06 18:29:03 +00:00
..
build-install-linux.sh * Allow skipping parts of the installation to be able to do it in parts if one 2009-07-06 18:29:03 +00:00
README Added step-by-step directions on how to use the script to build and install an 2009-07-01 13:51:59 +00:00

README 

HOWTO create an LLVM crosstool from x86_64/Linux to ARM/Linux
=============================================================

1. % llvm/utils/crosstool/create-snapshots.sh

   This will create llvm-[REV_L].tar.bz2 and llvm-gcc-4.2-[REV_G].tar.bz2,
   where:
     REV_L is the revision at which "llvm" was checked out, and
     REV_G is the revision at which "llvm-gcc-4.2" was checked out

   Note that REV_L might REV_G might not be the same revision.

2. Download CodeSourcery toolchain.  The exact location depends on your
   $CROSS_TARGET but the script will tell you what the location of the file is
   if you run it without having the file available.

   For example, if you're using $CROSS_TARGET == "arm-none-linux-gnueabi" then
   you need to download:

   http://www.codesourcery.com/sgpp/lite/arm/portal/package1787/public/arm-none-linux-gnueabi/arm-2007q3-51-arm-none-linux-gnueabi-i686-pc-linux-gnu.tar.bz2

   NOTE: simply changing $CROSS_TARGET and modifying the URL accordingly will
   not work -- you'll need to go to http://www.codesourcery.com and find the
   correct file, as the release number in the file will also be different (e.g.,
   in the file above, the release number is "51").

3. You can override most values in the script without modifying it, e.g.
   $INSTALL_ROOT (if you want to install in directory other than /usr/local).

   Run the script as:

   % env INSTALL_ROOT=[dir to install in] \
         CODE_SOURCERY_PKG_PATH=[dir where you downloaded CodeSourcery tarball] \
         LLVM_PKG_PATH=[dir where you stored your LLVM and LLVM-GCC snapshots] \
         LLVM_SVN_REV=${REV_L} \
         LLVMGCC_SVN_REV=${REV_G} \
         build-install-linux.sh