From d30a971bf256d91ed94a5c77826f772da7b1301e Mon Sep 17 00:00:00 2001 From: Reid Spencer Date: Thu, 27 Jul 2006 06:41:31 +0000 Subject: [PATCH] Correct a misunderstanding about cross-compiling. Anton's changes don't cause LLVM to become a cross-compiler but rather cross-compile LLVM so that it can execute on a platform other than the build host. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29339 91177308-0d34-0410-b5e6-96231b3b80d8 --- docs/GettingStarted.html | 21 +++++++++++++-------- 1 file changed, 13 insertions(+), 8 deletions(-) diff --git a/docs/GettingStarted.html b/docs/GettingStarted.html index 472ee10f284..273c28df057 100644 --- a/docs/GettingStarted.html +++ b/docs/GettingStarted.html @@ -31,7 +31,7 @@
  • Install the GCC Front End
  • Local LLVM Configuration
  • Compiling the LLVM Suite Source Code -
  • Compiling LLVM As A Cross-Compiler +
  • Cross-Compiling LLVM
  • The Location of LLVM Object Files
  • Optional Configuration Items
    • @@ -989,15 +989,17 @@ that directory that is out of date.

    - Compiling LLVM as a Cross-compiler + Cross-Compiling LLVM
    -

    LLVM can be built as a cross-compiler, however some additional steps are - required.1 To build a cross-compiler, use +

    It is possible to cross-compile LLVM. That is, you can create LLVM + executables and libraries for a platform different than the one one which you + are compiling. To do this, a few additional steps are + required. 1 To cross-compile LLVM, use these instructions:

      -
    1. Configure and build LLVM Suite as a native compiler. You will need +
    2. Configure and build LLVM as a native compiler. You will need just TableGen from that build.
      • If you have $LLVM_OBJ_ROOT=$LLVM_SRC_ROOT just execute @@ -1008,15 +1010,18 @@ that directory that is out of date.

      • Copy the TableGen binary to somewhere safe (out of your build tree).
        • -
      • Configure LLVM to build as a cross-compiler. To do this, supply the +
      • Configure LLVM to build with a cross-compiler. To do this, supply the configure script with --build and --host options that - are different. The values of these options must be legal target triples and - should specify a processor for which LLVM supports code generation.
        • + are different. The values of these options must be legal target triples + that your GCC compiler supports.
      • Put the saved TableGen executable into the into $LLVM_OBJ_ROOT/{BUILD_TYPE}/bin directory (e.g. into .../Release/bin for a Release build).
      • Build LLVM as usual.
    +

    The result of such a build will produce executables that are not executable + on your build host (--build option) but can be executed on your compile host + (--host option).

    Notes: