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Diffstat (limited to 'docs/user-guide.rst')
| -rw-r--r-- | docs/user-guide.rst | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/docs/user-guide.rst b/docs/user-guide.rst index 087305d12..da260264a 100644 --- a/docs/user-guide.rst +++ b/docs/user-guide.rst @@ -62,8 +62,8 @@ given Linaro Release. Also, these `Linaro instructions`_ provide further guidance and a script, which can be used to download Linaro deliverables automatically. -Optionally, TF-A can be built using clang or Arm Compiler 6. -See instructions below on how to switch the default compiler. +Optionally, TF-A can be built using clang version 4.0 or newer or Arm +Compiler 6. See instructions below on how to switch the default compiler. In addition, the following optional packages and tools may be needed: @@ -103,10 +103,14 @@ Building TF-A export CROSS_COMPILE=<path-to-aarch32-gcc>/bin/arm-linux-gnueabihf- - It is possible to build TF-A using clang or Arm Compiler 6. To do so - ``CC`` needs to point to the clang or armclang binary. Only the compiler - is switched; the assembler and linker need to be provided by the GNU - toolchain, thus ``CROSS_COMPILE`` should be set as described above. + It is possible to build TF-A using Clang or Arm Compiler 6. To do so + ``CC`` needs to point to the clang or armclang binary, which will + also select the clang or armclang assembler. Be aware that the + GNU linker is used by default. In case of being needed the linker + can be overriden using the ``LD`` variable. Clang linker version 6 is + known to work with TF-A. + + In both cases ``CROSS_COMPILE`` should be set as described above. Arm Compiler 6 will be selected when the base name of the path assigned to ``CC`` matches the string 'armclang'. |