[Patch 0/7] Add new CLANG8ELF tool chain for new LLVM/CLANG8

["Liming Gao" <liming.gao@intel.com>]

BZ:https://bugzilla.tianocore.org/show_bug.cgi?id=1603
LLVM/CLANG8 formal release http://releases.llvm.org/download.html#8.0.0
It can be downloaded and installed in Windows/Linux/Mac OS.

CLANG8ELF tool chain is added to generate ELF image, and convert to PE/COFF.
On Windows OS, set CLANG_HOST_BIN=n, set CLANG8_BIN=LLVM installed directory
CLANG_HOST_BIN is used CLANG_HOST_PREFIX. Prefix n is for nmake.
For example:
  set CLANG_HOST_BIN=n
  set CLANG8_BIN=C:\Program Files\LLVM\bin\
On Linux/Mac, export CLANG8_BIN=LLVM installed directory, CLANG_HOST_BIN is 
not required, because there is no prefix for make.
For example:
  export CLANG8_BIN=/home/clang8/bin/

This tool chain can be used to compile the firmware code. On windows OS,
Visual Studio is still required to compile BaseTools C tools and 
provide nmake.exe for makefile. On Linux/Mac OS, gcc is used to compile 
BaseTools C tools. make is used for makefile.

This tool chain is verified on OVMF Ia32, X64 and Ia32X64 to boot Shell.
This tool chain is verified in Windows/Linux and Mac OS.

Liming Gao (7):
  BaseTools: Add ClangBase.lds for CLANG8 tool chain with max-page-size
  BaseTools GenFw: Support CLANG8ELF with conversion ELF to PE/COFF
    image
  BaseTools: Update build_rule.template for ASLC rule with full C flags
  BaseTools: Update build_rule to skip CLANG resource section generation
  BaseTools: Update tools_def.template to directly refer to AutoGen.h
  BaseTools: Add new CLANG8ELF tool chain for new LLVM/CLANG8
  OvmfPkg: Update DSC/FDF to support CLANG8ELF tool chain

 BaseTools/Source/C/GenFw/Elf32Convert.c |  12 +---
 BaseTools/Source/C/GenFw/Elf64Convert.c |  11 +--
 BaseTools/Conf/build_rule.template      |   8 +--
 BaseTools/Conf/tools_def.template       | 121 +++++++++++++++++++++++++++++---
 BaseTools/Scripts/ClangBase.lds         |  79 +++++++++++++++++++++
 OvmfPkg/OvmfPkgIa32.dsc                 |   4 +-
 OvmfPkg/OvmfPkgIa32.fdf                 |   2 +-
 OvmfPkg/OvmfPkgIa32X64.dsc              |   4 +-
 OvmfPkg/OvmfPkgIa32X64.fdf              |   2 +-
 OvmfPkg/OvmfPkgX64.dsc                  |   4 +-
 OvmfPkg/OvmfPkgX64.fdf                  |   2 +-
 11 files changed, 213 insertions(+), 36 deletions(-)
 create mode 100644 BaseTools/Scripts/ClangBase.lds

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2.13.0.windows.1