BaseTools: Add new CLANG8ELF tool chain for new LLVM/CLANG8

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
For example:
  set CLANG_HOST_BIN=n # use windows nmake
  set CLANG8_BIN=C:\Program Files\LLVM\bin\
On Linux/Mac, set CLANG8_BIN=LLVM installed directory

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 nmake.exe.
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.

Signed-off-by: Liming Gao <gaoliming@byosoft.com.cn>
Reviewed-by: Feng Bob C <bob.c.feng@intel.com>

diff --git a/BaseTools/Conf/tools_def.template b/BaseTools/Conf/tools_def.template
index 498696e583fceddd7e105b5c35c0f31182120a78..c8ef1a1421a00184d056b0baddc7235288ea5573 100755 (executable)
--- a/BaseTools/Conf/tools_def.template
+++ b/BaseTools/Conf/tools_def.template
@@ -292,6 +292,10 @@ DEFINE DTC_BIN                 = ENV(DTC_PREFIX)dtc
 #                             Required to compile nasm source:\r
 #                               nasm compiler from\r
 #                               NASM -- http://www.nasm.us/\r
+#   CLANG8ELF -Linux,Windows,Mac-  Requires:\r
+#                             LLVM 8.0.0 or above, https://llvm.org/\r
+#                             On Windows OS, Visual Studio is required to be installed for nmake and compile BaseTools C tools.\r
+#                        Optional:\r
 #                             Required to build platforms or ACPI tables:\r
 #                               Intel(r) ACPI Compiler from\r
 #                               https://acpica.org/downloads\r
@@ -2828,6 +2832,104 @@ NOOPT_CLANGPDB_X64_DLINK_FLAGS      = /NOLOGO /NODEFAULTLIB /IGNORE:4001 /OPT:RE
 NOOPT_CLANGPDB_X64_DLINK2_FLAGS     =\r
 NOOPT_CLANGPDB_X64_GENFW_FLAGS      = --keepexceptiontable\r
 \r
+# Clang 8.0.0 - This configuration is used to compile under Windows, Linux, Mac to\r
+# produce ELF image, and convert to PE/COFF image using LLVM/CLANG 8.0 with LTO\r
+#\r
+####################################################################################\r
+*_CLANG8ELF_*_*_FAMILY                = GCC\r
+*_CLANG8ELF_*_*_BUILDRULEFAMILY       = CLANGGCC\r
+*_CLANG8ELF_*_MAKE_PATH               = ENV(CLANG_HOST_BIN)make\r
+*_CLANG8ELF_*_*_DLL                   = ENV(CLANG8_DLL)\r
+*_CLANG8ELF_*_ASL_PATH                = DEF(UNIX_IASL_BIN)\r
+\r
+*_CLANG8ELF_*_APP_FLAGS               =\r
+*_CLANG8ELF_*_ASL_FLAGS               = DEF(IASL_FLAGS)\r
+*_CLANG8ELF_*_ASL_OUTFLAGS            = DEF(IASL_OUTFLAGS)\r
+\r
+DEFINE CLANG8ELF_IA32_PREFIX          = ENV(CLANG8_BIN)\r
+DEFINE CLANG8ELF_X64_PREFIX           = ENV(CLANG8_BIN)\r
+\r
+# LLVM/CLANG doesn't support -n link option. So, it can't share the same IA32_X64_DLINK_COMMON flag.\r
+# LLVM/CLANG doesn't support common page size. So, it can't share the same GccBase.lds script.\r
+DEFINE CLANG8ELF_IA32_X64_DLINK_COMMON   = -nostdlib -Wl,-q,--gc-sections -z max-page-size=0x40\r
+DEFINE CLANG8ELF_DLINK2_FLAGS_COMMON     = -Wl,--script=$(EDK_TOOLS_PATH)/Scripts/ClangBase.lds\r
+DEFINE CLANG8ELF_IA32_X64_ASLDLINK_FLAGS = DEF(CLANG8ELF_IA32_X64_DLINK_COMMON) -Wl,--defsym=PECOFF_HEADER_SIZE=0 DEF(CLANG8ELF_DLINK2_FLAGS_COMMON) -Wl,--entry,ReferenceAcpiTable -u ReferenceAcpiTable\r
+DEFINE CLANG8ELF_IA32_X64_DLINK_FLAGS    = DEF(CLANG8ELF_IA32_X64_DLINK_COMMON) -Wl,--entry,$(IMAGE_ENTRY_POINT) -u $(IMAGE_ENTRY_POINT) -Wl,-Map,$(DEST_DIR_DEBUG)/$(BASE_NAME).map,--whole-archive\r
+DEFINE CLANG8ELF_IA32_DLINK2_FLAGS       = -Wl,--defsym=PECOFF_HEADER_SIZE=0x220 DEF(CLANG8ELF_DLINK2_FLAGS_COMMON)\r
+DEFINE CLANG8ELF_X64_DLINK2_FLAGS        = -Wl,--defsym=PECOFF_HEADER_SIZE=0x228 DEF(CLANG8ELF_DLINK2_FLAGS_COMMON)\r
+\r
+###########################\r
+# CLANG8ELF IA32 definitions\r
+###########################\r
+*_CLANG8ELF_IA32_CC_PATH              = DEF(CLANG8ELF_IA32_PREFIX)clang\r
+*_CLANG8ELF_IA32_SLINK_PATH           = DEF(CLANG8ELF_IA32_PREFIX)llvm-ar\r
+*_CLANG8ELF_IA32_DLINK_PATH           = DEF(CLANG8ELF_IA32_PREFIX)clang\r
+*_CLANG8ELF_IA32_ASLDLINK_PATH        = DEF(CLANG8ELF_IA32_PREFIX)clang\r
+*_CLANG8ELF_IA32_ASM_PATH             = DEF(CLANG8ELF_IA32_PREFIX)clang\r
+*_CLANG8ELF_IA32_PP_PATH              = DEF(CLANG8ELF_IA32_PREFIX)clang\r
+*_CLANG8ELF_IA32_VFRPP_PATH           = DEF(CLANG8ELF_IA32_PREFIX)clang\r
+*_CLANG8ELF_IA32_ASLCC_PATH           = DEF(CLANG8ELF_IA32_PREFIX)clang\r
+*_CLANG8ELF_IA32_ASLPP_PATH           = DEF(CLANG8ELF_IA32_PREFIX)clang\r
+*_CLANG8ELF_IA32_RC_PATH              = DEF(CLANG8ELF_IA32_PREFIX)llvm-rc\r
+\r
+*_CLANG8ELF_IA32_ASLCC_FLAGS          = DEF(GCC_ASLCC_FLAGS) -m32 -fno-lto DEF(CLANG38_IA32_TARGET)\r
+*_CLANG8ELF_IA32_ASLDLINK_FLAGS       = DEF(CLANG8ELF_IA32_X64_ASLDLINK_FLAGS) -Wl,-m,elf_i386 -fuse-ld=lld\r
+*_CLANG8ELF_IA32_ASM_FLAGS            = DEF(GCC5_ASM_FLAGS) -m32 -march=i386 DEF(CLANG38_IA32_TARGET)\r
+*_CLANG8ELF_IA32_RC_FLAGS             = DEF(GCC_IA32_RC_FLAGS)\r
+*_CLANG8ELF_IA32_OBJCOPY_FLAGS        =\r
+*_CLANG8ELF_IA32_NASM_FLAGS           = -f elf32\r
+*_CLANG8ELF_IA32_PP_FLAGS             = DEF(GCC_PP_FLAGS) DEF(CLANG38_IA32_TARGET)\r
+*_CLANG8ELF_IA32_ASLPP_FLAGS          = DEF(GCC_ASLPP_FLAGS) DEF(CLANG38_IA32_TARGET)\r
+*_CLANG8ELF_IA32_VFRPP_FLAGS          = DEF(GCC_VFRPP_FLAGS) DEF(CLANG38_IA32_TARGET)\r
+\r
+DEBUG_CLANG8ELF_IA32_CC_FLAGS         = DEF(CLANG38_ALL_CC_FLAGS) -m32 -Oz -flto -march=i586 DEF(CLANG38_IA32_TARGET) -g\r
+DEBUG_CLANG8ELF_IA32_DLINK_FLAGS      = DEF(CLANG8ELF_IA32_X64_DLINK_FLAGS) -flto -Wl,-O3 -Wl,-melf_i386 -Wl,--oformat,elf32-i386\r
+DEBUG_CLANG8ELF_IA32_DLINK2_FLAGS     = DEF(CLANG8ELF_IA32_DLINK2_FLAGS) -O3 -fuse-ld=lld\r
+\r
+RELEASE_CLANG8ELF_IA32_CC_FLAGS       = DEF(CLANG38_ALL_CC_FLAGS) -m32 -Oz -flto -march=i586 DEF(CLANG38_IA32_TARGET)\r
+RELEASE_CLANG8ELF_IA32_DLINK_FLAGS    = DEF(CLANG8ELF_IA32_X64_DLINK_FLAGS) -flto -Wl,-O3 -Wl,-melf_i386 -Wl,--oformat,elf32-i386\r
+RELEASE_CLANG8ELF_IA32_DLINK2_FLAGS   = DEF(CLANG8ELF_IA32_DLINK2_FLAGS) -O3 -fuse-ld=lld\r
+\r
+NOOPT_CLANG8ELF_IA32_CC_FLAGS         = DEF(CLANG38_ALL_CC_FLAGS) -m32 -O0 -march=i586 DEF(CLANG38_IA32_TARGET) -g\r
+NOOPT_CLANG8ELF_IA32_DLINK_FLAGS      = DEF(CLANG8ELF_IA32_X64_DLINK_FLAGS) -Wl,-O0 -Wl,-melf_i386 -Wl,--oformat,elf32-i386\r
+NOOPT_CLANG8ELF_IA32_DLINK2_FLAGS     = DEF(CLANG8ELF_IA32_DLINK2_FLAGS) -O0 -fuse-ld=lld\r
+\r
+##########################\r
+# CLANG8ELF X64 definitions\r
+##########################\r
+*_CLANG8ELF_X64_CC_PATH              = DEF(CLANG8ELF_X64_PREFIX)clang\r
+*_CLANG8ELF_X64_SLINK_PATH           = DEF(CLANG8ELF_X64_PREFIX)llvm-ar\r
+*_CLANG8ELF_X64_DLINK_PATH           = DEF(CLANG8ELF_X64_PREFIX)clang\r
+*_CLANG8ELF_X64_ASLDLINK_PATH        = DEF(CLANG8ELF_X64_PREFIX)clang\r
+*_CLANG8ELF_X64_ASM_PATH             = DEF(CLANG8ELF_X64_PREFIX)clang\r
+*_CLANG8ELF_X64_PP_PATH              = DEF(CLANG8ELF_X64_PREFIX)clang\r
+*_CLANG8ELF_X64_VFRPP_PATH           = DEF(CLANG8ELF_X64_PREFIX)clang\r
+*_CLANG8ELF_X64_ASLCC_PATH           = DEF(CLANG8ELF_X64_PREFIX)clang\r
+*_CLANG8ELF_X64_ASLPP_PATH           = DEF(CLANG8ELF_X64_PREFIX)clang\r
+*_CLANG8ELF_X64_RC_PATH              = DEF(CLANG8ELF_X64_PREFIX)llvm-rc\r
+\r
+*_CLANG8ELF_X64_ASLCC_FLAGS          = DEF(GCC_ASLCC_FLAGS) -m64 -fno-lto DEF(CLANG38_X64_TARGET)\r
+*_CLANG8ELF_X64_ASLDLINK_FLAGS       = DEF(CLANG8ELF_IA32_X64_ASLDLINK_FLAGS) -Wl,-m,elf_x86_64 -fuse-ld=lld\r
+*_CLANG8ELF_X64_ASM_FLAGS            = DEF(GCC5_ASM_FLAGS) -m64 DEF(CLANG38_X64_TARGET)\r
+*_CLANG8ELF_X64_RC_FLAGS             = DEF(GCC_X64_RC_FLAGS)\r
+*_CLANG8ELF_X64_OBJCOPY_FLAGS        =\r
+*_CLANG8ELF_X64_NASM_FLAGS           = -f elf64\r
+*_CLANG8ELF_X64_PP_FLAGS             = DEF(GCC_PP_FLAGS) DEF(CLANG38_X64_TARGET)\r
+*_CLANG8ELF_X64_ASLPP_FLAGS          = DEF(GCC_ASLPP_FLAGS) DEF(CLANG38_X64_TARGET)\r
+*_CLANG8ELF_X64_VFRPP_FLAGS          = DEF(GCC_VFRPP_FLAGS) DEF(CLANG38_X64_TARGET)\r
+\r
+DEBUG_CLANG8ELF_X64_CC_FLAGS         = DEF(CLANG38_ALL_CC_FLAGS) -m64 "-DEFIAPI=__attribute__((ms_abi))" -mno-red-zone -mcmodel=small -fpie -Oz -flto DEF(CLANG38_X64_TARGET) -g\r
+DEBUG_CLANG8ELF_X64_DLINK_FLAGS      = DEF(CLANG8ELF_IA32_X64_DLINK_FLAGS) -flto -Wl,-O3 -Wl,-melf_x86_64 -Wl,--oformat,elf64-x86-64 -Wl,-pie -mcmodel=small -Wl,--apply-dynamic-relocs\r
+DEBUG_CLANG8ELF_X64_DLINK2_FLAGS     = DEF(CLANG8ELF_X64_DLINK2_FLAGS) -O3 -fuse-ld=lld\r
+\r
+RELEASE_CLANG8ELF_X64_CC_FLAGS       = DEF(CLANG38_ALL_CC_FLAGS) -m64 "-DEFIAPI=__attribute__((ms_abi))" -mno-red-zone -mcmodel=small -fpie -Oz -flto DEF(CLANG38_X64_TARGET)\r
+RELEASE_CLANG8ELF_X64_DLINK_FLAGS    = DEF(CLANG8ELF_IA32_X64_DLINK_FLAGS) -flto -Wl,-O3 -Wl,-melf_x86_64 -Wl,--oformat,elf64-x86-64 -Wl,-pie -mcmodel=small -Wl,--apply-dynamic-relocs\r
+RELEASE_CLANG8ELF_X64_DLINK2_FLAGS   = DEF(CLANG8ELF_X64_DLINK2_FLAGS) -O3 -fuse-ld=lld\r
+\r
+NOOPT_CLANG8ELF_X64_CC_FLAGS         = DEF(CLANG38_ALL_CC_FLAGS) -m64 "-DEFIAPI=__attribute__((ms_abi))" -mno-red-zone -mcmodel=small -fpie -O0 DEF(CLANG38_X64_TARGET) -g\r
+NOOPT_CLANG8ELF_X64_DLINK_FLAGS      = DEF(CLANG8ELF_IA32_X64_DLINK_FLAGS) -Wl,-O0 -Wl,-melf_x86_64 -Wl,--oformat,elf64-x86-64 -Wl,-pie -mcmodel=small -Wl,--apply-dynamic-relocs\r
+NOOPT_CLANG8ELF_X64_DLINK2_FLAGS     = DEF(CLANG8ELF_X64_DLINK2_FLAGS) -O0 -fuse-ld=lld\r
+\r
 #\r
 #\r
 # XCODE5 support\r