From: Reid Spencer Date: Thu, 27 Jul 2006 05:43:30 +0000 (+0000) Subject: Add instructions for building a cross-compiler. Patch contributed by X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=17850ef897aba5dbfe7fd6a1a3dd64defcb941f2;p=oota-llvm.git Add instructions for building a cross-compiler. Patch contributed by Anton Korobeynikov. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29330 91177308-0d34-0410-b5e6-96231b3b80d8 --- diff --git a/docs/GettingStarted.html b/docs/GettingStarted.html index 9f6ef59b7fd..6587987060a 100644 --- a/docs/GettingStarted.html +++ b/docs/GettingStarted.html @@ -31,6 +31,7 @@
  • Install the GCC Front End
  • Local LLVM Configuration
  • Compiling the LLVM Suite Source Code +
  • Compiling LLVM As A Cross-Compiler
  • The Location of LLVM Object Files
  • Optional Configuration Items
    • @@ -986,6 +987,46 @@ that directory that is out of date.

    + +
    + Compiling LLVM As A Cross-compiler +
    + +
    +

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

    +
      +
    1. Configure and build LLVM Suite as a native compiler. You will need + just TableGen from that build. +
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      • If you have $LLVM_OBJ_ROOT=$LLVM_SRC_ROOT just execute + make -C utils/TableGen after configuring.
        • +
      • Otherwise you will need to monitor building process and terminate + it just after TableGen was built.
        • +
      +
      2. +
    2. Copy the TableGen binary to somewhere safe (out of your build tree). +
      3. +
    3. Configure LLVM to build as 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.
      4. +
    4. Put the saved TableGen executable into the + into $LLVM_OBJ_ROOT/{BUILD_TYPE}/bin directory (e.g. into + .../Release/bin for a Release build).
      5. +
    5. Build LLVM as usual.
      6. +
    +

    Notes:

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    +
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    1. Cross-compiling was tested only with Linux as + build platform and Windows as host using mingw32 cross-compiler. Other + combinations have not been tested.
      2. +
    +
    +
    +
    The Location of LLVM Object Files