[PATCH 0/4] Introduce CLANG38 toolchain in edk2

Shi, Steven <steven.shi@...>

Please review my new commits in public branch:

The difference from last V2(https://github.com/shijunjing/edk2/commits/llvm_v2):
1. Seperate the CLANG38 from the other two toolchains (GCC5, CLANGSCAN38), and only focus on CLANG38 in this serial.
2. Base on current GCC5 in edk2 to enhance the CLANG38.
3. Seperate the GenFW new relocation types support patch from this serial, and I will send it later in new serial.
4. Add EFIAPI for UefiShellCommandLib function.

Test pass platforms: OVMF (OvmfPkgIa32.dsc, OvmfPkgX64.dsc and
Test compiler and linker version: LLVM 3.8, GNU ld 2.26.

Example steps to use the CLANG38 tool chain to build OVMF platform:
1. Download and extract the llvm 3.8.0 Pre-Built Binaries from
http://www.llvm.org/releases/ (e.g. http://www.llvm.org/releases/
3.8.0/clang+llvm-3.8.0-x86_64-linux-gnu-ubuntu-16.04.tar.xz and
extract it as ~/clang38).
2. Copy LLVMgold.so from https://github.com/shijunjing/edk2/blob/
llvm/BaseTools/Bin/LLVMgold.so to above clang lib folder (e.g.
3. Install new version linker with plugin support (e.g. ld 2.26 in
GNU Binutils 2.26 or Ubuntu16.04)
$ cd edk2
$ git checkout llvm
$ export CLANG38_BIN=path/to/your/clang38/
(e.g. export CLANG38_BIN=~/clang38/bin/)
$ source edksetup.sh
$ make -C BaseTools/Source/C
$ build -t CLANG38 -a X64 -p OvmfPkg/OvmfPkgX64.dsc -n 5 -b DEBUG
$ cd edk2/Build/OvmfX64/DEBUG_CLANG38/FV
$ qemu-system-x86_64.exe -bios OVMF.fd -serial file:serial.log -m 4096
-hda fat:.

Shi, Steven (4):
BaseTools-Conf:Remove short dash in ar flag for LLVM
BaseTools-Conf:Introduce CLANG38 new toolchain for x86
ShellPkg-UefiShellTftpCommandLib: Replace compiler builtin
ShellPkg-UefiShellCommandLib: Add EFIAPI in VA_List library function

BaseTools/Conf/build_rule.template | 2 +-
BaseTools/Conf/tools_def.template | 81 ++++++++++++++++++++++
.../Library/UefiShellCommandLib/ConsistMapping.c | 1 +
ShellPkg/Library/UefiShellTftpCommandLib/Tftp.c | 2 +-
4 files changed, 84 insertions(+), 2 deletions(-)
mode change 100644 => 100755 BaseTools/Conf/build_rule.template
mode change 100644 => 100755 BaseTools/Conf/tools_def.template
mode change 100644 => 100755 ShellPkg/Library/UefiShellCommandLib/ConsistMapping.c
mode change 100644 => 100755 ShellPkg/Library/UefiShellTftpCommandLib/Tftp.c