[PATCH 3/9] BaseTools: Update CLANGDWARF toolchain and remove CLANG35 and CLANG38

["Rebecca Cran" <rebecca@bsdio.com>]

Update the CLANGDWARF toolchain definition with the settings from
CLANG38, and delete the CLANG35 and CLANG38 toolchains.

The existing CLANGDWARF toolchain definition used ld.lld, but this
causes the following linker errors when building OvmfPkgX64.dsc:

ld.lld: error: relocation R_X86_64_64 cannot be used against local symbol;
recompile with -fPIC
>>> defined in edk2/Build/OvmfX64/RELEASE_CLANGDWARF/X64/UefiCpuPkg/Library/CpuExceptionHandlerLib/SecPeiCpuExceptionHandlerLib/OUTPUT/SecPeiCpuExceptionHandlerLib.lib(ExceptionHandlerAsm.obj)
>>> referenced by /home/bcran/src/uefi/edk2/Build/OvmfX64/RELEASE_CLANGDWARF/X64/UefiCpuPkg/Library/CpuExceptionHandlerLib/SecPeiCpuExceptionHandlerLib/OUTPUT/X64/ExceptionHandlerAsm.iii
>>>               ExceptionHandlerAsm.obj:(.text+0x5) in archive /home/bcran/src/uefi/edk2/Build/OvmfX64/RELEASE_CLANGDWARF/X64/UefiCpuPkg/Library/CpuExceptionHandlerLib/SecPeiCpuExceptionHandlerLib/OUTPUT/SecPeiCpuExceptionHandlerLib.lib

ld.lld: error: relocation R_X86_64_64 cannot be used against local symbol; recompile with -fPIC
>>> defined in edk2/Build/OvmfX64/RELEASE_CLANGDWARF/X64/UefiCpuPkg/Library/CpuExceptionHandlerLib/SecPeiCpuExceptionHandlerLib/OUTPUT/SecPeiCpuExceptionHandlerLib.lib(ExceptionHandlerAsm.obj)
>>> referenced by edk2/Build/OvmfX64/RELEASE_CLANGDWARF/X64/UefiCpuPkg/Library/CpuExceptionHandlerLib/SecPeiCpuExceptionHandlerLib/OUTPUT/X64/ExceptionHandlerAsm.iii
>>>               ExceptionHandlerAsm.obj:(.text+0x14) in archive edk2/Build/OvmfX64/RELEASE_CLANGDWARF/X64/UefiCpuPkg/Library/CpuExceptionHandlerLib/SecPeiCpuExceptionHandlerLib/OUTPUT/SecPeiCpuExceptionHandlerLib.lib

To avoid this, use the default ld (which is normally GNU ld) instead.

Signed-off-by: Rebecca Cran <rebecca@bsdio.com>
---
 BaseTools/Conf/tools_def.template | 453 ++++++++------------
 1 file changed, 171 insertions(+), 282 deletions(-)

diff --git a/BaseTools/Conf/tools_def.template b/BaseTools/Conf/tools_def.template
index 471eb67c0c83..a790366063ea 100755
--- a/BaseTools/Conf/tools_def.template
+++ b/BaseTools/Conf/tools_def.template
@@ -273,32 +273,21 @@ DEFINE DTC_BIN                 = ENV(DTC_PREFIX)dtc
 #                             Required to build platforms or ACPI tables:
 #                               Intel(r) ACPI Compiler from
 #                               https://acpica.org/downloads
-#
-#   CLANG35     -Linux,Windows-  Requires:
-#                             Clang v3.5 or later, and GNU binutils targeting aarch64-linux-gnu or arm-linux-gnueabi
-#                        Optional:
-#                             Required to build platforms or ACPI tables:
-#                               Intel(r) ACPI Compiler from
-#                               https://acpica.org/downloads
-#   CLANG38  -Linux-  Requires:
-#                             Clang v3.8, LLVMgold plugin and GNU binutils 2.26 targeting x86_64-linux-gnu, aarch64-linux-gnu or arm-linux-gnueabi
-#                             Clang v3.9 or later, LLVMgold plugin and GNU binutils 2.28 targeting x86_64-linux-gnu, aarch64-linux-gnu or arm-linux-gnueabi
+#   CLANGDWARF  -Linux-  Requires:
+#                             Clang 9 or above, and GNU binutils targeting x86_64-linux-gnu, aaarch64-linux-gnu or arm-linux-gnuaebi
 #                        Optional:
 #                             Required to build platforms or ACPI tables:
 #                               Intel(r) ACPI Compiler from
 #                               https://acpica.org/downloads
+#                             Required to compile nasm source:
+#                               nasm compiler from
+#                               NASM -- https://nasm.us
 #   CLANGPDB -Linux, Windows, Mac-  Requires:
 #                             Clang 9 or above from http://releases.llvm.org/
 #                        Optional:
 #                             Required to compile nasm source:
 #                               nasm compiler from
 #                               NASM -- http://www.nasm.us/
-#   CLANGDWARF -Linux, Windows, Mac-  Requires:
-#                             Clang 9 or above from http://releases.llvm.org/
-#                        Optional:
-#                             Required to compile nasm source:
-#                               nasm compiler from
-#                               NASM -- http://www.nasm.us/
 #   VS2008x86   -win64-  Requires:
 #                             Microsoft Visual Studio 2008 (x86)
 #                             Microsoft Windows Server 2003 Driver Development Kit (Microsoft WINDDK) version 3790.1830
@@ -2565,187 +2554,187 @@ RELEASE_CLANG35_AARCH64_CC_FLAGS = DEF(CLANG35_AARCH64_CC_FLAGS) $(PLATFORM_FLAG
 #  PE/COFF binaries using LLVM/Clang 3.8 with Link Time Optimization enabled
 #
 ####################################################################################
-*_CLANG38_*_*_FAMILY                = GCC
-*_CLANG38_*_MAKE_PATH               = make
-*_CLANG38_*_*_DLL                   = ENV(CLANG38_DLL)
-*_CLANG38_*_ASL_PATH                = DEF(UNIX_IASL_BIN)
+*_CLANGDWARF_*_*_FAMILY                = GCC
+*_CLANGDWARF_*_MAKE_PATH               = make
+*_CLANGDWARF_*_*_DLL                   = ENV(CLANGDWARF_DLL)
+*_CLANGDWARF_*_ASL_PATH                = DEF(UNIX_IASL_BIN)
 
-*_CLANG38_*_APP_FLAGS               =
-*_CLANG38_*_ASL_FLAGS               = DEF(IASL_FLAGS)
-*_CLANG38_*_ASL_OUTFLAGS            = DEF(IASL_OUTFLAGS)
-*_CLANG38_*_DEPS_FLAGS              = DEF(GCC_DEPS_FLAGS)
-DEFINE CLANG38_IA32_PREFIX          = ENV(CLANG38_BIN)
-DEFINE CLANG38_X64_PREFIX           = ENV(CLANG38_BIN)
+*_CLANGDWARF_*_APP_FLAGS               =
+*_CLANGDWARF_*_ASL_FLAGS               = DEF(IASL_FLAGS)
+*_CLANGDWARF_*_ASL_OUTFLAGS            = DEF(IASL_OUTFLAGS)
+*_CLANGDWARF_*_DEPS_FLAGS              = DEF(GCC_DEPS_FLAGS)
+DEFINE CLANGDWARF_IA32_PREFIX          = ENV(CLANGDWARF_BIN)
+DEFINE CLANGDWARF_X64_PREFIX           = ENV(CLANGDWARF_BIN)
 
-DEFINE CLANG38_IA32_TARGET          = -target i686-pc-linux-gnu
-DEFINE CLANG38_X64_TARGET           = -target x86_64-pc-linux-gnu
+DEFINE CLANGDWARF_IA32_TARGET          = -target i686-pc-linux-gnu
+DEFINE CLANGDWARF_X64_TARGET           = -target x86_64-pc-linux-gnu
 
-DEFINE CLANG38_WARNING_OVERRIDES    = -Wno-parentheses-equality -Wno-tautological-compare -Wno-tautological-constant-out-of-range-compare -Wno-empty-body -Wno-unused-const-variable -Wno-varargs -Wno-unknown-warning-option -Wno-unused-but-set-variable -Wno-unused-const-variable -Wno-unaligned-access
-DEFINE CLANG38_ALL_CC_FLAGS         = DEF(GCC48_ALL_CC_FLAGS) DEF(CLANG38_WARNING_OVERRIDES) -fno-stack-protector -mms-bitfields -Wno-address -Wno-shift-negative-value -Wno-unknown-pragmas -Wno-incompatible-library-redeclaration -fno-asynchronous-unwind-tables -mno-sse -mno-mmx -msoft-float -mno-implicit-float  -ftrap-function=undefined_behavior_has_been_optimized_away_by_clang -funsigned-char -fno-ms-extensions -Wno-null-dereference
+DEFINE CLANGDWARF_WARNING_OVERRIDES    = -Wno-parentheses-equality -Wno-tautological-compare -Wno-tautological-constant-out-of-range-compare -Wno-empty-body -Wno-unused-const-variable -Wno-varargs -Wno-unknown-warning-option -Wno-unused-but-set-variable -Wno-unused-const-variable -Wno-unaligned-access
+DEFINE CLANGDWARF_ALL_CC_FLAGS         = DEF(GCC48_ALL_CC_FLAGS) DEF(CLANGDWARF_WARNING_OVERRIDES) -fno-stack-protector -mms-bitfields -Wno-address -Wno-shift-negative-value -Wno-unknown-pragmas -Wno-incompatible-library-redeclaration -fno-asynchronous-unwind-tables -mno-sse -mno-mmx -msoft-float -mno-implicit-float  -ftrap-function=undefined_behavior_has_been_optimized_away_by_clang -funsigned-char -fno-ms-extensions -Wno-null-dereference
 
 ###########################
-# CLANG38 IA32 definitions
+# CLANGDWARF IA32 definitions
 ###########################
-*_CLANG38_IA32_OBJCOPY_PATH         = objcopy
-*_CLANG38_IA32_CC_PATH              = DEF(CLANG38_IA32_PREFIX)clang
-*_CLANG38_IA32_SLINK_PATH           = DEF(CLANG38_IA32_PREFIX)llvm-ar
-*_CLANG38_IA32_DLINK_PATH           = DEF(CLANG38_IA32_PREFIX)clang
-*_CLANG38_IA32_ASLDLINK_PATH        = DEF(CLANG38_IA32_PREFIX)clang
-*_CLANG38_IA32_ASM_PATH             = DEF(CLANG38_IA32_PREFIX)clang
-*_CLANG38_IA32_PP_PATH              = DEF(CLANG38_IA32_PREFIX)clang
-*_CLANG38_IA32_VFRPP_PATH           = DEF(CLANG38_IA32_PREFIX)clang
-*_CLANG38_IA32_ASLCC_PATH           = DEF(CLANG38_IA32_PREFIX)clang
-*_CLANG38_IA32_ASLPP_PATH           = DEF(CLANG38_IA32_PREFIX)clang
-*_CLANG38_IA32_RC_PATH              = objcopy
-
-*_CLANG38_IA32_ASLCC_FLAGS          = DEF(GCC_ASLCC_FLAGS) -m32 -fno-lto DEF(CLANG38_IA32_TARGET)
-*_CLANG38_IA32_ASLDLINK_FLAGS       = DEF(GCC5_IA32_X64_ASLDLINK_FLAGS) -Wl,-m,elf_i386
-*_CLANG38_IA32_ASM_FLAGS            = DEF(GCC5_ASM_FLAGS) -m32 -march=i386 DEF(CLANG38_IA32_TARGET)
-*_CLANG38_IA32_RC_FLAGS             = DEF(GCC_IA32_RC_FLAGS)
-*_CLANG38_IA32_OBJCOPY_FLAGS        =
-*_CLANG38_IA32_NASM_FLAGS           = -f elf32
-*_CLANG38_IA32_PP_FLAGS             = DEF(GCC_PP_FLAGS) DEF(CLANG38_IA32_TARGET)
-*_CLANG38_IA32_ASLPP_FLAGS          = DEF(GCC_ASLPP_FLAGS) DEF(CLANG38_IA32_TARGET)
-*_CLANG38_IA32_VFRPP_FLAGS          = DEF(GCC_VFRPP_FLAGS) DEF(CLANG38_IA32_TARGET)
-
-DEBUG_CLANG38_IA32_CC_FLAGS         = DEF(CLANG38_ALL_CC_FLAGS) -m32 -Oz -flto -march=i586 DEF(CLANG38_IA32_TARGET) -g -malign-double
-DEBUG_CLANG38_IA32_DLINK_FLAGS      = DEF(GCC5_IA32_X64_DLINK_FLAGS) -flto -Wl,-Oz -Wl,-melf_i386 -Wl,--oformat=elf32-i386
-DEBUG_CLANG38_IA32_DLINK2_FLAGS     = DEF(GCC5_IA32_DLINK2_FLAGS) -O3
-
-RELEASE_CLANG38_IA32_CC_FLAGS       = DEF(CLANG38_ALL_CC_FLAGS) -m32 -Oz -flto -march=i586 DEF(CLANG38_IA32_TARGET) -malign-double
-RELEASE_CLANG38_IA32_DLINK_FLAGS    = DEF(GCC5_IA32_X64_DLINK_FLAGS) -flto -Wl,-Oz -Wl,-melf_i386 -Wl,--oformat=elf32-i386
-RELEASE_CLANG38_IA32_DLINK2_FLAGS   = DEF(GCC5_IA32_DLINK2_FLAGS) -O3
-
-NOOPT_CLANG38_IA32_CC_FLAGS         = DEF(CLANG38_ALL_CC_FLAGS) -m32 -O0 -march=i586 DEF(CLANG38_IA32_TARGET) -g -malign-double
-NOOPT_CLANG38_IA32_DLINK_FLAGS      = DEF(GCC5_IA32_X64_DLINK_FLAGS) -Wl,-O0 -Wl,-melf_i386 -Wl,--oformat=elf32-i386
-NOOPT_CLANG38_IA32_DLINK2_FLAGS     = DEF(GCC5_IA32_DLINK2_FLAGS) -O0
+*_CLANGDWARF_IA32_OBJCOPY_PATH         = objcopy
+*_CLANGDWARF_IA32_CC_PATH              = DEF(CLANGDWARF_IA32_PREFIX)clang
+*_CLANGDWARF_IA32_SLINK_PATH           = DEF(CLANGDWARF_IA32_PREFIX)llvm-ar
+*_CLANGDWARF_IA32_DLINK_PATH           = DEF(CLANGDWARF_IA32_PREFIX)clang
+*_CLANGDWARF_IA32_ASLDLINK_PATH        = DEF(CLANGDWARF_IA32_PREFIX)clang
+*_CLANGDWARF_IA32_ASM_PATH             = DEF(CLANGDWARF_IA32_PREFIX)clang
+*_CLANGDWARF_IA32_PP_PATH              = DEF(CLANGDWARF_IA32_PREFIX)clang
+*_CLANGDWARF_IA32_VFRPP_PATH           = DEF(CLANGDWARF_IA32_PREFIX)clang
+*_CLANGDWARF_IA32_ASLCC_PATH           = DEF(CLANGDWARF_IA32_PREFIX)clang
+*_CLANGDWARF_IA32_ASLPP_PATH           = DEF(CLANGDWARF_IA32_PREFIX)clang
+*_CLANGDWARF_IA32_RC_PATH              = objcopy
+
+*_CLANGDWARF_IA32_ASLCC_FLAGS          = DEF(GCC_ASLCC_FLAGS) -m32 -fno-lto DEF(CLANGDWARF_IA32_TARGET)
+*_CLANGDWARF_IA32_ASLDLINK_FLAGS       = DEF(GCC5_IA32_X64_ASLDLINK_FLAGS) -Wl,-m,elf_i386
+*_CLANGDWARF_IA32_ASM_FLAGS            = DEF(GCC5_ASM_FLAGS) -m32 -march=i386 DEF(CLANGDWARF_IA32_TARGET)
+*_CLANGDWARF_IA32_RC_FLAGS             = DEF(GCC_IA32_RC_FLAGS)
+*_CLANGDWARF_IA32_OBJCOPY_FLAGS        =
+*_CLANGDWARF_IA32_NASM_FLAGS           = -f elf32
+*_CLANGDWARF_IA32_PP_FLAGS             = DEF(GCC_PP_FLAGS) DEF(CLANGDWARF_IA32_TARGET)
+*_CLANGDWARF_IA32_ASLPP_FLAGS          = DEF(GCC_ASLPP_FLAGS) DEF(CLANGDWARF_IA32_TARGET)
+*_CLANGDWARF_IA32_VFRPP_FLAGS          = DEF(GCC_VFRPP_FLAGS) DEF(CLANGDWARF_IA32_TARGET)
+
+DEBUG_CLANGDWARF_IA32_CC_FLAGS         = DEF(CLANGDWARF_ALL_CC_FLAGS) -m32 -Oz -flto -march=i586 DEF(CLANGDWARF_IA32_TARGET) -g -malign-double
+DEBUG_CLANGDWARF_IA32_DLINK_FLAGS      = DEF(GCC5_IA32_X64_DLINK_FLAGS) -flto -Wl,-Oz -Wl,-melf_i386 -Wl,--oformat=elf32-i386
+DEBUG_CLANGDWARF_IA32_DLINK2_FLAGS     = DEF(GCC5_IA32_DLINK2_FLAGS) -O3
+
+RELEASE_CLANGDWARF_IA32_CC_FLAGS       = DEF(CLANGDWARF_ALL_CC_FLAGS) -m32 -Oz -flto -march=i586 DEF(CLANGDWARF_IA32_TARGET) -malign-double
+RELEASE_CLANGDWARF_IA32_DLINK_FLAGS    = DEF(GCC5_IA32_X64_DLINK_FLAGS) -flto -Wl,-Oz -Wl,-melf_i386 -Wl,--oformat=elf32-i386
+RELEASE_CLANGDWARF_IA32_DLINK2_FLAGS   = DEF(GCC5_IA32_DLINK2_FLAGS) -O3
+
+NOOPT_CLANGDWARF_IA32_CC_FLAGS         = DEF(CLANGDWARF_ALL_CC_FLAGS) -m32 -O0 -march=i586 DEF(CLANGDWARF_IA32_TARGET) -g -malign-double
+NOOPT_CLANGDWARF_IA32_DLINK_FLAGS      = DEF(GCC5_IA32_X64_DLINK_FLAGS) -Wl,-O0 -Wl,-melf_i386 -Wl,--oformat=elf32-i386
+NOOPT_CLANGDWARF_IA32_DLINK2_FLAGS     = DEF(GCC5_IA32_DLINK2_FLAGS) -O0
 
 ##########################
-# CLANG38 X64 definitions
+# CLANGDWARF X64 definitions
 ##########################
-*_CLANG38_X64_OBJCOPY_PATH         = objcopy
-*_CLANG38_X64_CC_PATH              = DEF(CLANG38_X64_PREFIX)clang
-*_CLANG38_X64_SLINK_PATH           = DEF(CLANG38_X64_PREFIX)llvm-ar
-*_CLANG38_X64_DLINK_PATH           = DEF(CLANG38_X64_PREFIX)clang
-*_CLANG38_X64_ASLDLINK_PATH        = DEF(CLANG38_X64_PREFIX)clang
-*_CLANG38_X64_ASM_PATH             = DEF(CLANG38_X64_PREFIX)clang
-*_CLANG38_X64_PP_PATH              = DEF(CLANG38_X64_PREFIX)clang
-*_CLANG38_X64_VFRPP_PATH           = DEF(CLANG38_X64_PREFIX)clang
-*_CLANG38_X64_ASLCC_PATH           = DEF(CLANG38_X64_PREFIX)clang
-*_CLANG38_X64_ASLPP_PATH           = DEF(CLANG38_X64_PREFIX)clang
-*_CLANG38_X64_RC_PATH              = objcopy
-
-*_CLANG38_X64_ASLCC_FLAGS          = DEF(GCC_ASLCC_FLAGS) -m64 -fno-lto DEF(CLANG38_X64_TARGET)
-*_CLANG38_X64_ASLDLINK_FLAGS       = DEF(GCC5_IA32_X64_ASLDLINK_FLAGS) -Wl,-m,elf_x86_64
-*_CLANG38_X64_ASM_FLAGS            = DEF(GCC5_ASM_FLAGS) -m64 DEF(CLANG38_X64_TARGET)
-*_CLANG38_X64_RC_FLAGS             = DEF(GCC_X64_RC_FLAGS)
-*_CLANG38_X64_OBJCOPY_FLAGS        =
-*_CLANG38_X64_NASM_FLAGS           = -f elf64
-*_CLANG38_X64_PP_FLAGS             = DEF(GCC_PP_FLAGS) DEF(CLANG38_X64_TARGET)
-*_CLANG38_X64_ASLPP_FLAGS          = DEF(GCC_ASLPP_FLAGS) DEF(CLANG38_X64_TARGET)
-*_CLANG38_X64_VFRPP_FLAGS          = DEF(GCC_VFRPP_FLAGS) DEF(CLANG38_X64_TARGET)
-
-DEBUG_CLANG38_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
-DEBUG_CLANG38_X64_DLINK_FLAGS      = DEF(GCC5_IA32_X64_DLINK_FLAGS) -flto -Wl,-Oz -Wl,-melf_x86_64 -Wl,--oformat=elf64-x86-64 -Wl,-pie -mcmodel=small
-DEBUG_CLANG38_X64_DLINK2_FLAGS     = DEF(GCC5_X64_DLINK2_FLAGS) -O3
-
-RELEASE_CLANG38_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)
-RELEASE_CLANG38_X64_DLINK_FLAGS    = DEF(GCC5_IA32_X64_DLINK_FLAGS) -flto -Wl,-Oz -Wl,-melf_x86_64 -Wl,--oformat=elf64-x86-64 -Wl,-pie -mcmodel=small
-RELEASE_CLANG38_X64_DLINK2_FLAGS   = DEF(GCC5_X64_DLINK2_FLAGS) -O3
-
-NOOPT_CLANG38_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
-NOOPT_CLANG38_X64_DLINK_FLAGS      = DEF(GCC5_IA32_X64_DLINK_FLAGS) -Wl,-O0 -Wl,-melf_x86_64 -Wl,--oformat=elf64-x86-64 -Wl,-pie -mcmodel=small
-NOOPT_CLANG38_X64_DLINK2_FLAGS     = DEF(GCC5_X64_DLINK2_FLAGS) -O0
+*_CLANGDWARF_X64_OBJCOPY_PATH         = objcopy
+*_CLANGDWARF_X64_CC_PATH              = DEF(CLANGDWARF_X64_PREFIX)clang
+*_CLANGDWARF_X64_SLINK_PATH           = DEF(CLANGDWARF_X64_PREFIX)llvm-ar
+*_CLANGDWARF_X64_DLINK_PATH           = DEF(CLANGDWARF_X64_PREFIX)clang
+*_CLANGDWARF_X64_ASLDLINK_PATH        = DEF(CLANGDWARF_X64_PREFIX)clang
+*_CLANGDWARF_X64_ASM_PATH             = DEF(CLANGDWARF_X64_PREFIX)clang
+*_CLANGDWARF_X64_PP_PATH              = DEF(CLANGDWARF_X64_PREFIX)clang
+*_CLANGDWARF_X64_VFRPP_PATH           = DEF(CLANGDWARF_X64_PREFIX)clang
+*_CLANGDWARF_X64_ASLCC_PATH           = DEF(CLANGDWARF_X64_PREFIX)clang
+*_CLANGDWARF_X64_ASLPP_PATH           = DEF(CLANGDWARF_X64_PREFIX)clang
+*_CLANGDWARF_X64_RC_PATH              = objcopy
+
+*_CLANGDWARF_X64_ASLCC_FLAGS          = DEF(GCC_ASLCC_FLAGS) -m64 -fno-lto DEF(CLANGDWARF_X64_TARGET)
+*_CLANGDWARF_X64_ASLDLINK_FLAGS       = DEF(GCC5_IA32_X64_ASLDLINK_FLAGS) -Wl,-m,elf_x86_64
+*_CLANGDWARF_X64_ASM_FLAGS            = DEF(GCC5_ASM_FLAGS) -m64 DEF(CLANGDWARF_X64_TARGET)
+*_CLANGDWARF_X64_RC_FLAGS             = DEF(GCC_X64_RC_FLAGS)
+*_CLANGDWARF_X64_OBJCOPY_FLAGS        =
+*_CLANGDWARF_X64_NASM_FLAGS           = -f elf64
+*_CLANGDWARF_X64_PP_FLAGS             = DEF(GCC_PP_FLAGS) DEF(CLANGDWARF_X64_TARGET)
+*_CLANGDWARF_X64_ASLPP_FLAGS          = DEF(GCC_ASLPP_FLAGS) DEF(CLANGDWARF_X64_TARGET)
+*_CLANGDWARF_X64_VFRPP_FLAGS          = DEF(GCC_VFRPP_FLAGS) DEF(CLANGDWARF_X64_TARGET)
+
+DEBUG_CLANGDWARF_X64_CC_FLAGS         = DEF(CLANGDWARF_ALL_CC_FLAGS) -m64 "-DEFIAPI=__attribute__((ms_abi))" -mno-red-zone -mcmodel=small -fpie -Oz -flto DEF(CLANGDWARF_X64_TARGET) -g
+DEBUG_CLANGDWARF_X64_DLINK_FLAGS      = DEF(GCC5_IA32_X64_DLINK_FLAGS) -flto -Wl,-Oz -Wl,-melf_x86_64 -Wl,--oformat=elf64-x86-64 -Wl,-pie -mcmodel=small
+DEBUG_CLANGDWARF_X64_DLINK2_FLAGS     = DEF(GCC5_X64_DLINK2_FLAGS) -O3
+
+RELEASE_CLANGDWARF_X64_CC_FLAGS       = DEF(CLANGDWARF_ALL_CC_FLAGS) -m64 "-DEFIAPI=__attribute__((ms_abi))" -mno-red-zone -mcmodel=small -fpie -Oz -flto DEF(CLANGDWARF_X64_TARGET)
+RELEASE_CLANGDWARF_X64_DLINK_FLAGS    = DEF(GCC5_IA32_X64_DLINK_FLAGS) -flto -Wl,-Oz -Wl,-melf_x86_64 -Wl,--oformat=elf64-x86-64 -Wl,-pie -mcmodel=small
+RELEASE_CLANGDWARF_X64_DLINK2_FLAGS   = DEF(GCC5_X64_DLINK2_FLAGS) -O3
+
+NOOPT_CLANGDWARF_X64_CC_FLAGS         = DEF(CLANGDWARF_ALL_CC_FLAGS) -m64 "-DEFIAPI=__attribute__((ms_abi))" -mno-red-zone -mcmodel=small -fpie -O0 DEF(CLANGDWARF_X64_TARGET) -g
+NOOPT_CLANGDWARF_X64_DLINK_FLAGS      = DEF(GCC5_IA32_X64_DLINK_FLAGS) -flto -Wl,-O0 -Wl,-melf_x86_64 -Wl,--oformat=elf64-x86-64 -Wl,-pie -mcmodel=small
+NOOPT_CLANGDWARF_X64_DLINK2_FLAGS     = DEF(GCC5_X64_DLINK2_FLAGS) -O0
 
 ##################
-# CLANG38 ARM definitions
+# CLANGDWARF ARM definitions
 ##################
-DEFINE CLANG38_ARM_TARGET        = -target arm-linux-gnueabi
-DEFINE CLANG38_ARM_CC_FLAGS      = DEF(GCC_ARM_CC_FLAGS) DEF(CLANG38_ARM_TARGET) DEF(CLANG38_WARNING_OVERRIDES) -mno-movt
-DEFINE CLANG38_ARM_DLINK_FLAGS   = DEF(CLANG38_ARM_TARGET) DEF(GCC_ARM_DLINK_FLAGS)
-
-*_CLANG38_ARM_PP_FLAGS           = DEF(GCC_PP_FLAGS)
-*_CLANG38_ARM_ASLCC_FLAGS        = DEF(GCC_ASLCC_FLAGS)
-*_CLANG38_ARM_APP_FLAGS          =
-*_CLANG38_ARM_ASL_FLAGS          = DEF(IASL_FLAGS)
-*_CLANG38_ARM_ASL_OUTFLAGS       = DEF(IASL_OUTFLAGS)
-*_CLANG38_ARM_DTCPP_FLAGS        = DEF(GCC_DTCPP_FLAGS)
-
-*_CLANG38_ARM_CC_PATH            = ENV(CLANG38_BIN)clang
-*_CLANG38_ARM_ASM_PATH           = ENV(CLANG38_BIN)clang
-*_CLANG38_ARM_PP_PATH            = ENV(CLANG38_BIN)clang
-*_CLANG38_ARM_VFRPP_PATH         = ENV(CLANG38_BIN)clang
-*_CLANG38_ARM_ASLCC_PATH         = ENV(CLANG38_BIN)clang
-*_CLANG38_ARM_ASLPP_PATH         = ENV(CLANG38_BIN)clang
-*_CLANG38_ARM_DLINK_PATH         = ENV(CLANG38_BIN)clang
-*_CLANG38_ARM_ASLDLINK_PATH      = ENV(CLANG38_BIN)clang
-
-*_CLANG38_ARM_SLINK_PATH         = ENV(CLANG38_BIN)llvm-ar
-*_CLANG38_ARM_RC_PATH            = ENV(CLANG38_ARM_PREFIX)objcopy
-
-*_CLANG38_ARM_ASLCC_FLAGS        = DEF(GCC_ASLCC_FLAGS) -fno-lto
-*_CLANG38_ARM_ASLDLINK_FLAGS     = DEF(CLANG38_ARM_TARGET) DEF(GCC_ARM_ASLDLINK_FLAGS)
-*_CLANG38_ARM_ASM_FLAGS          = DEF(GCC_ASM_FLAGS) DEF(CLANG38_ARM_TARGET) $(PLATFORM_FLAGS) -Qunused-arguments
-*_CLANG38_ARM_DLINK2_FLAGS       = DEF(GCC_DLINK2_FLAGS_COMMON) -Wl,--defsym=PECOFF_HEADER_SIZE=0x220
-*_CLANG38_ARM_PLATFORM_FLAGS     = -march=armv7-a
-*_CLANG38_ARM_PP_FLAGS           = DEF(GCC_PP_FLAGS) DEF(CLANG38_ARM_TARGET) $(PLATFORM_FLAGS)
-*_CLANG38_ARM_RC_FLAGS           = DEF(GCC_ARM_RC_FLAGS)
-*_CLANG38_ARM_VFRPP_FLAGS        = DEF(GCC_VFRPP_FLAGS) DEF(CLANG38_ARM_TARGET) $(PLATFORM_FLAGS)
-*_CLANG38_ARM_ASLPP_FLAGS        = DEF(GCC_ASLPP_FLAGS) DEF(CLANG38_ARM_TARGET)
-*_CLANG38_ARM_CC_XIPFLAGS        = DEF(GCC_ARM_CC_XIPFLAGS)
-
-  DEBUG_CLANG38_ARM_CC_FLAGS     = DEF(CLANG38_ARM_CC_FLAGS) $(PLATFORM_FLAGS) -flto -O1
-  DEBUG_CLANG38_ARM_DLINK_FLAGS  = DEF(CLANG38_ARM_DLINK_FLAGS) -flto -Wl,-O1 -L$(WORKSPACE)/ArmPkg/Library/GccLto -llto-arm -Wl,-plugin-opt=-pass-through=-llto-arm
-  NOOPT_CLANG38_ARM_CC_FLAGS     = DEF(CLANG38_ARM_CC_FLAGS) $(PLATFORM_FLAGS) -O0
-  NOOPT_CLANG38_ARM_DLINK_FLAGS  = DEF(CLANG38_ARM_DLINK_FLAGS)
-RELEASE_CLANG38_ARM_CC_FLAGS     = DEF(CLANG38_ARM_CC_FLAGS) $(PLATFORM_FLAGS) -flto -O3
-RELEASE_CLANG38_ARM_DLINK_FLAGS  = DEF(CLANG38_ARM_DLINK_FLAGS) -flto -Wl,-O3 -L$(WORKSPACE)/ArmPkg/Library/GccLto -llto-arm -Wl,-plugin-opt=-pass-through=-llto-arm
+DEFINE CLANGDWARF_ARM_TARGET        = -target arm-linux-gnueabi
+DEFINE CLANGDWARF_ARM_CC_FLAGS      = DEF(GCC_ARM_CC_FLAGS) DEF(CLANGDWARF_ARM_TARGET) DEF(CLANGDWARF_WARNING_OVERRIDES) -mno-movt
+DEFINE CLANGDWARF_ARM_DLINK_FLAGS   = DEF(CLANGDWARF_ARM_TARGET) DEF(GCC_ARM_DLINK_FLAGS)
+
+*_CLANGDWARF_ARM_PP_FLAGS           = DEF(GCC_PP_FLAGS)
+*_CLANGDWARF_ARM_ASLCC_FLAGS        = DEF(GCC_ASLCC_FLAGS)
+*_CLANGDWARF_ARM_APP_FLAGS          =
+*_CLANGDWARF_ARM_ASL_FLAGS          = DEF(IASL_FLAGS)
+*_CLANGDWARF_ARM_ASL_OUTFLAGS       = DEF(IASL_OUTFLAGS)
+*_CLANGDWARF_ARM_DTCPP_FLAGS        = DEF(GCC_DTCPP_FLAGS)
+
+*_CLANGDWARF_ARM_CC_PATH            = ENV(CLANGDWARF_BIN)clang
+*_CLANGDWARF_ARM_ASM_PATH           = ENV(CLANGDWARF_BIN)clang
+*_CLANGDWARF_ARM_PP_PATH            = ENV(CLANGDWARF_BIN)clang
+*_CLANGDWARF_ARM_VFRPP_PATH         = ENV(CLANGDWARF_BIN)clang
+*_CLANGDWARF_ARM_ASLCC_PATH         = ENV(CLANGDWARF_BIN)clang
+*_CLANGDWARF_ARM_ASLPP_PATH         = ENV(CLANGDWARF_BIN)clang
+*_CLANGDWARF_ARM_DLINK_PATH         = ENV(CLANGDWARF_BIN)clang
+*_CLANGDWARF_ARM_ASLDLINK_PATH      = ENV(CLANGDWARF_BIN)clang
+
+*_CLANGDWARF_ARM_SLINK_PATH         = ENV(CLANGDWARF_BIN)llvm-ar
+*_CLANGDWARF_ARM_RC_PATH            = ENV(CLANGDWARF_ARM_PREFIX)objcopy
+
+*_CLANGDWARF_ARM_ASLCC_FLAGS        = DEF(GCC_ASLCC_FLAGS) -fno-lto
+*_CLANGDWARF_ARM_ASLDLINK_FLAGS     = DEF(CLANGDWARF_ARM_TARGET) DEF(GCC_ARM_ASLDLINK_FLAGS)
+*_CLANGDWARF_ARM_ASM_FLAGS          = DEF(GCC_ASM_FLAGS) DEF(CLANGDWARF_ARM_TARGET) $(PLATFORM_FLAGS) -Qunused-arguments
+*_CLANGDWARF_ARM_DLINK2_FLAGS       = DEF(GCC_DLINK2_FLAGS_COMMON) -Wl,--defsym=PECOFF_HEADER_SIZE=0x220
+*_CLANGDWARF_ARM_PLATFORM_FLAGS     = -march=armv7-a
+*_CLANGDWARF_ARM_PP_FLAGS           = DEF(GCC_PP_FLAGS) DEF(CLANGDWARF_ARM_TARGET) $(PLATFORM_FLAGS)
+*_CLANGDWARF_ARM_RC_FLAGS           = DEF(GCC_ARM_RC_FLAGS)
+*_CLANGDWARF_ARM_VFRPP_FLAGS        = DEF(GCC_VFRPP_FLAGS) DEF(CLANGDWARF_ARM_TARGET) $(PLATFORM_FLAGS)
+*_CLANGDWARF_ARM_ASLPP_FLAGS        = DEF(GCC_ASLPP_FLAGS) DEF(CLANGDWARF_ARM_TARGET)
+*_CLANGDWARF_ARM_CC_XIPFLAGS        = DEF(GCC_ARM_CC_XIPFLAGS)
+
+  DEBUG_CLANGDWARF_ARM_CC_FLAGS     = DEF(CLANGDWARF_ARM_CC_FLAGS) $(PLATFORM_FLAGS) -flto -O1
+  DEBUG_CLANGDWARF_ARM_DLINK_FLAGS  = DEF(CLANGDWARF_ARM_DLINK_FLAGS) -flto -Wl,-O1 -L$(WORKSPACE)/ArmPkg/Library/GccLto -llto-arm -Wl,-plugin-opt=-pass-through=-llto-arm
+  NOOPT_CLANGDWARF_ARM_CC_FLAGS     = DEF(CLANGDWARF_ARM_CC_FLAGS) $(PLATFORM_FLAGS) -O0
+  NOOPT_CLANGDWARF_ARM_DLINK_FLAGS  = DEF(CLANGDWARF_ARM_DLINK_FLAGS)
+RELEASE_CLANGDWARF_ARM_CC_FLAGS     = DEF(CLANGDWARF_ARM_CC_FLAGS) $(PLATFORM_FLAGS) -flto -O3
+RELEASE_CLANGDWARF_ARM_DLINK_FLAGS  = DEF(CLANGDWARF_ARM_DLINK_FLAGS) -flto -Wl,-O3 -L$(WORKSPACE)/ArmPkg/Library/GccLto -llto-arm -Wl,-plugin-opt=-pass-through=-llto-arm
 
 ##################
-# CLANG38 AARCH64 definitions
+# CLANGDWARF AARCH64 definitions
 ##################
-DEFINE CLANG38_AARCH64_TARGET    = -target aarch64-linux-gnu
-DEFINE CLANG38_AARCH64_CC_FLAGS  = DEF(GCC_AARCH64_CC_FLAGS) DEF(CLANG38_AARCH64_TARGET) -mcmodel=small DEF(CLANG38_WARNING_OVERRIDES)
-DEFINE CLANG38_AARCH64_DLINK_FLAGS  = DEF(CLANG38_AARCH64_TARGET) DEF(GCC_AARCH64_DLINK_FLAGS) -z common-page-size=0x1000
-
-*_CLANG38_AARCH64_PP_FLAGS       = DEF(GCC_PP_FLAGS)
-*_CLANG38_AARCH64_ASLCC_FLAGS    = DEF(GCC_ASLCC_FLAGS)
-*_CLANG38_AARCH64_APP_FLAGS      =
-*_CLANG38_AARCH64_ASL_FLAGS      = DEF(IASL_FLAGS)
-*_CLANG38_AARCH64_ASL_OUTFLAGS   = DEF(IASL_OUTFLAGS)
-*_CLANG38_AARCH64_DTCPP_FLAGS    = DEF(GCC_DTCPP_FLAGS)
-
-*_CLANG38_AARCH64_CC_PATH        = ENV(CLANG38_BIN)clang
-*_CLANG38_AARCH64_ASM_PATH       = ENV(CLANG38_BIN)clang
-*_CLANG38_AARCH64_PP_PATH        = ENV(CLANG38_BIN)clang
-*_CLANG38_AARCH64_VFRPP_PATH     = ENV(CLANG38_BIN)clang
-*_CLANG38_AARCH64_ASLCC_PATH     = ENV(CLANG38_BIN)clang
-*_CLANG38_AARCH64_ASLPP_PATH     = ENV(CLANG38_BIN)clang
-*_CLANG38_AARCH64_DLINK_PATH     = ENV(CLANG38_BIN)clang
-*_CLANG38_AARCH64_ASLDLINK_PATH  = ENV(CLANG38_BIN)clang
-
-*_CLANG38_AARCH64_SLINK_PATH     = ENV(CLANG38_BIN)llvm-ar
-*_CLANG38_AARCH64_RC_PATH        = ENV(CLANG38_AARCH64_PREFIX)objcopy
-
-*_CLANG38_AARCH64_ASLCC_FLAGS    = DEF(GCC_ASLCC_FLAGS) -fno-lto
-*_CLANG38_AARCH64_ASLDLINK_FLAGS = DEF(CLANG38_AARCH64_TARGET) DEF(GCC_AARCH64_ASLDLINK_FLAGS)
-*_CLANG38_AARCH64_ASM_FLAGS      = DEF(GCC_ASM_FLAGS) DEF(CLANG38_AARCH64_TARGET) $(PLATFORM_FLAGS) -Qunused-arguments
-*_CLANG38_AARCH64_DLINK_FLAGS    = DEF(CLANG38_AARCH64_TARGET) DEF(GCC_AARCH64_DLINK_FLAGS) -z common-page-size=0x1000
-*_CLANG38_AARCH64_DLINK_XIPFLAGS = -z common-page-size=0x20
-*_CLANG38_AARCH64_DLINK2_FLAGS   = DEF(GCC_DLINK2_FLAGS_COMMON) -Wl,--defsym=PECOFF_HEADER_SIZE=0x228
-*_CLANG38_AARCH64_PLATFORM_FLAGS =
-*_CLANG38_AARCH64_PP_FLAGS       = DEF(GCC_PP_FLAGS) DEF(CLANG38_AARCH64_TARGET) $(PLATFORM_FLAGS)
-*_CLANG38_AARCH64_RC_FLAGS       = DEF(GCC_AARCH64_RC_FLAGS)
-*_CLANG38_AARCH64_VFRPP_FLAGS    = DEF(GCC_VFRPP_FLAGS) DEF(CLANG38_AARCH64_TARGET) $(PLATFORM_FLAGS)
-*_CLANG38_AARCH64_ASLPP_FLAGS    = DEF(GCC_ASLPP_FLAGS) DEF(CLANG38_AARCH64_TARGET)
-*_CLANG38_AARCH64_CC_XIPFLAGS    = DEF(GCC_AARCH64_CC_XIPFLAGS)
-
-  DEBUG_CLANG38_AARCH64_CC_FLAGS    = DEF(CLANG38_AARCH64_CC_FLAGS) $(PLATFORM_FLAGS) -flto -O1
-  DEBUG_CLANG38_AARCH64_DLINK_FLAGS = DEF(CLANG38_AARCH64_DLINK_FLAGS) -flto -Wl,-O1 -L$(WORKSPACE)/ArmPkg/Library/GccLto -llto-aarch64 -Wl,-plugin-opt=-pass-through=-llto-aarch64
-  NOOPT_CLANG38_AARCH64_CC_FLAGS    = DEF(CLANG38_AARCH64_CC_FLAGS) $(PLATFORM_FLAGS) -O0
-  NOOPT_CLANG38_AARCH64_DLINK_FLAGS = DEF(CLANG38_AARCH64_DLINK_FLAGS)
-RELEASE_CLANG38_AARCH64_CC_FLAGS    = DEF(CLANG38_AARCH64_CC_FLAGS) $(PLATFORM_FLAGS) -flto -O3
-RELEASE_CLANG38_AARCH64_DLINK_FLAGS = DEF(CLANG38_AARCH64_DLINK_FLAGS) -flto -Wl,-O3 -L$(WORKSPACE)/ArmPkg/Library/GccLto -llto-aarch64 -Wl,-plugin-opt=-pass-through=-llto-aarch64
+DEFINE CLANGDWARF_AARCH64_TARGET    = -target aarch64-linux-gnu
+DEFINE CLANGDWARF_AARCH64_CC_FLAGS  = DEF(GCC_AARCH64_CC_FLAGS) DEF(CLANGDWARF_AARCH64_TARGET) -mcmodel=small DEF(CLANGDWARF_WARNING_OVERRIDES)
+DEFINE CLANGDWARF_AARCH64_DLINK_FLAGS  = DEF(CLANGDWARF_AARCH64_TARGET) DEF(GCC_AARCH64_DLINK_FLAGS) -z common-page-size=0x1000
+
+*_CLANGDWARF_AARCH64_PP_FLAGS       = DEF(GCC_PP_FLAGS)
+*_CLANGDWARF_AARCH64_ASLCC_FLAGS    = DEF(GCC_ASLCC_FLAGS)
+*_CLANGDWARF_AARCH64_APP_FLAGS      =
+*_CLANGDWARF_AARCH64_ASL_FLAGS      = DEF(IASL_FLAGS)
+*_CLANGDWARF_AARCH64_ASL_OUTFLAGS   = DEF(IASL_OUTFLAGS)
+*_CLANGDWARF_AARCH64_DTCPP_FLAGS    = DEF(GCC_DTCPP_FLAGS)
+
+*_CLANGDWARF_AARCH64_CC_PATH        = ENV(CLANGDWARF_BIN)clang
+*_CLANGDWARF_AARCH64_ASM_PATH       = ENV(CLANGDWARF_BIN)clang
+*_CLANGDWARF_AARCH64_PP_PATH        = ENV(CLANGDWARF_BIN)clang
+*_CLANGDWARF_AARCH64_VFRPP_PATH     = ENV(CLANGDWARF_BIN)clang
+*_CLANGDWARF_AARCH64_ASLCC_PATH     = ENV(CLANGDWARF_BIN)clang
+*_CLANGDWARF_AARCH64_ASLPP_PATH     = ENV(CLANGDWARF_BIN)clang
+*_CLANGDWARF_AARCH64_DLINK_PATH     = ENV(CLANGDWARF_BIN)clang
+*_CLANGDWARF_AARCH64_ASLDLINK_PATH  = ENV(CLANGDWARF_BIN)clang
+
+*_CLANGDWARF_AARCH64_SLINK_PATH     = ENV(CLANGDWARF_BIN)llvm-ar
+*_CLANGDWARF_AARCH64_RC_PATH        = ENV(CLANGDWARF_AARCH64_PREFIX)objcopy
+
+*_CLANGDWARF_AARCH64_ASLCC_FLAGS    = DEF(GCC_ASLCC_FLAGS) -fno-lto
+*_CLANGDWARF_AARCH64_ASLDLINK_FLAGS = DEF(CLANGDWARF_AARCH64_TARGET) DEF(GCC_AARCH64_ASLDLINK_FLAGS)
+*_CLANGDWARF_AARCH64_ASM_FLAGS      = DEF(GCC_ASM_FLAGS) DEF(CLANGDWARF_AARCH64_TARGET) $(PLATFORM_FLAGS) -Qunused-arguments
+*_CLANGDWARF_AARCH64_DLINK_FLAGS    = DEF(CLANGDWARF_AARCH64_TARGET) DEF(GCC_AARCH64_DLINK_FLAGS) -z common-page-size=0x1000
+*_CLANGDWARF_AARCH64_DLINK_XIPFLAGS = -z common-page-size=0x20
+*_CLANGDWARF_AARCH64_DLINK2_FLAGS   = DEF(GCC_DLINK2_FLAGS_COMMON) -Wl,--defsym=PECOFF_HEADER_SIZE=0x228
+*_CLANGDWARF_AARCH64_PLATFORM_FLAGS =
+*_CLANGDWARF_AARCH64_PP_FLAGS       = DEF(GCC_PP_FLAGS) DEF(CLANGDWARF_AARCH64_TARGET) $(PLATFORM_FLAGS)
+*_CLANGDWARF_AARCH64_RC_FLAGS       = DEF(GCC_AARCH64_RC_FLAGS)
+*_CLANGDWARF_AARCH64_VFRPP_FLAGS    = DEF(GCC_VFRPP_FLAGS) DEF(CLANGDWARF_AARCH64_TARGET) $(PLATFORM_FLAGS)
+*_CLANGDWARF_AARCH64_ASLPP_FLAGS    = DEF(GCC_ASLPP_FLAGS) DEF(CLANGDWARF_AARCH64_TARGET)
+*_CLANGDWARF_AARCH64_CC_XIPFLAGS    = DEF(GCC_AARCH64_CC_XIPFLAGS)
+
+  DEBUG_CLANGDWARF_AARCH64_CC_FLAGS    = DEF(CLANGDWARF_AARCH64_CC_FLAGS) $(PLATFORM_FLAGS) -flto -O1
+  DEBUG_CLANGDWARF_AARCH64_DLINK_FLAGS = DEF(CLANGDWARF_AARCH64_DLINK_FLAGS) -flto -Wl,-O1 -L$(WORKSPACE)/ArmPkg/Library/GccLto -llto-aarch64 -Wl,-plugin-opt=-pass-through=-llto-aarch64
+  NOOPT_CLANGDWARF_AARCH64_CC_FLAGS    = DEF(CLANGDWARF_AARCH64_CC_FLAGS) $(PLATFORM_FLAGS) -O0
+  NOOPT_CLANGDWARF_AARCH64_DLINK_FLAGS = DEF(CLANGDWARF_AARCH64_DLINK_FLAGS)
+RELEASE_CLANGDWARF_AARCH64_CC_FLAGS    = DEF(CLANGDWARF_AARCH64_CC_FLAGS) $(PLATFORM_FLAGS) -flto -O3
+RELEASE_CLANGDWARF_AARCH64_DLINK_FLAGS = DEF(CLANGDWARF_AARCH64_DLINK_FLAGS) -flto -Wl,-O3 -L$(WORKSPACE)/ArmPkg/Library/GccLto -llto-aarch64 -Wl,-plugin-opt=-pass-through=-llto-aarch64
 
 ####################################################################################
 #
@@ -2845,106 +2834,6 @@ NOOPT_CLANGPDB_X64_DLINK_FLAGS      = /NOLOGO /NODEFAULTLIB /IGNORE:4001 /OPT:RE
 NOOPT_CLANGPDB_X64_DLINK2_FLAGS     =
 NOOPT_CLANGPDB_X64_GENFW_FLAGS      = --keepexceptiontable
 
-####################################################################################
-#
-# CLANGDWARF - This configuration is used to compile under Windows/Linux/Mac to produce
-#  ELF binaries using LLVM/Clang/LLD with Link Time Optimization enabled
-#
-####################################################################################
-*_CLANGDWARF_*_*_FAMILY             = GCC
-*_CLANGDWARF_*_*_BUILDRULEFAMILY    = CLANGGCC
-*_CLANGDWARF_*_MAKE_PATH            = ENV(CLANG_HOST_BIN)make
-*_CLANGDWARF_*_*_DLL                = ENV(CLANGDWARF_DLL)
-*_CLANGDWARF_*_ASL_PATH             = DEF(UNIX_IASL_BIN)
-
-*_CLANGDWARF_*_APP_FLAGS            =
-*_CLANGDWARF_*_ASL_FLAGS            = DEF(IASL_FLAGS)
-*_CLANGDWARF_*_ASL_OUTFLAGS         = DEF(IASL_OUTFLAGS)
-
-DEFINE CLANGDWARF_IA32_PREFIX       = ENV(CLANG_BIN)
-DEFINE CLANGDWARF_X64_PREFIX        = ENV(CLANG_BIN)
-
-# LLVM/CLANG doesn't support -n link option. So, it can't share the same IA32_X64_DLINK_COMMON flag.
-# LLVM/CLANG doesn't support common page size. So, it can't share the same GccBase.lds script.
-DEFINE CLANGDWARF_IA32_X64_DLINK_COMMON   = -nostdlib -Wl,-q,--gc-sections -z max-page-size=0x40
-DEFINE CLANGDWARF_DLINK2_FLAGS_COMMON     = -Wl,--script=$(EDK_TOOLS_PATH)/Scripts/ClangBase.lds
-DEFINE CLANGDWARF_IA32_X64_ASLDLINK_FLAGS = DEF(CLANGDWARF_IA32_X64_DLINK_COMMON) -Wl,--defsym=PECOFF_HEADER_SIZE=0 DEF(CLANGDWARF_DLINK2_FLAGS_COMMON) -Wl,--entry,ReferenceAcpiTable -u ReferenceAcpiTable
-DEFINE CLANGDWARF_IA32_X64_DLINK_FLAGS    = DEF(CLANGDWARF_IA32_X64_DLINK_COMMON) -Wl,--entry,$(IMAGE_ENTRY_POINT) -u $(IMAGE_ENTRY_POINT) -Wl,-Map,$(DEST_DIR_DEBUG)/$(BASE_NAME).map,--whole-archive
-DEFINE CLANGDWARF_IA32_DLINK2_FLAGS       = -Wl,--defsym=PECOFF_HEADER_SIZE=0x220 DEF(CLANGDWARF_DLINK2_FLAGS_COMMON)
-DEFINE CLANGDWARF_X64_DLINK2_FLAGS        = -Wl,--defsym=PECOFF_HEADER_SIZE=0x228 DEF(CLANGDWARF_DLINK2_FLAGS_COMMON)
-
-###########################
-# CLANGDWARF IA32 definitions
-###########################
-*_CLANGDWARF_IA32_CC_PATH              = DEF(CLANGDWARF_IA32_PREFIX)clang
-*_CLANGDWARF_IA32_SLINK_PATH           = DEF(CLANGDWARF_IA32_PREFIX)llvm-ar
-*_CLANGDWARF_IA32_DLINK_PATH           = DEF(CLANGDWARF_IA32_PREFIX)clang
-*_CLANGDWARF_IA32_ASLDLINK_PATH        = DEF(CLANGDWARF_IA32_PREFIX)clang
-*_CLANGDWARF_IA32_ASM_PATH             = DEF(CLANGDWARF_IA32_PREFIX)clang
-*_CLANGDWARF_IA32_PP_PATH              = DEF(CLANGDWARF_IA32_PREFIX)clang
-*_CLANGDWARF_IA32_VFRPP_PATH           = DEF(CLANGDWARF_IA32_PREFIX)clang
-*_CLANGDWARF_IA32_ASLCC_PATH           = DEF(CLANGDWARF_IA32_PREFIX)clang
-*_CLANGDWARF_IA32_ASLPP_PATH           = DEF(CLANGDWARF_IA32_PREFIX)clang
-*_CLANGDWARF_IA32_RC_PATH              = DEF(CLANGDWARF_IA32_PREFIX)llvm-rc
-
-*_CLANGDWARF_IA32_ASLCC_FLAGS          = DEF(GCC_ASLCC_FLAGS) -m32 -fno-lto DEF(CLANG38_IA32_TARGET)
-*_CLANGDWARF_IA32_ASLDLINK_FLAGS       = DEF(CLANGDWARF_IA32_X64_ASLDLINK_FLAGS) -Wl,-m,elf_i386 -fuse-ld=lld
-*_CLANGDWARF_IA32_ASM_FLAGS            = DEF(GCC5_ASM_FLAGS) -m32 -march=i386 DEF(CLANG38_IA32_TARGET)
-*_CLANGDWARF_IA32_RC_FLAGS             = DEF(GCC_IA32_RC_FLAGS)
-*_CLANGDWARF_IA32_OBJCOPY_FLAGS        =
-*_CLANGDWARF_IA32_NASM_FLAGS           = -f elf32
-*_CLANGDWARF_IA32_PP_FLAGS             = DEF(GCC_PP_FLAGS) DEF(CLANG38_IA32_TARGET)
-*_CLANGDWARF_IA32_ASLPP_FLAGS          = DEF(GCC_ASLPP_FLAGS) DEF(CLANG38_IA32_TARGET)
-*_CLANGDWARF_IA32_VFRPP_FLAGS          = DEF(GCC_VFRPP_FLAGS) DEF(CLANG38_IA32_TARGET)
-
-DEBUG_CLANGDWARF_IA32_CC_FLAGS         = DEF(CLANG38_ALL_CC_FLAGS) -m32 -Oz -flto -march=i586 DEF(CLANG38_IA32_TARGET) -g -malign-double
-DEBUG_CLANGDWARF_IA32_DLINK_FLAGS      = DEF(CLANGDWARF_IA32_X64_DLINK_FLAGS) -flto -Wl,-O3 -Wl,-melf_i386 -Wl,--oformat,elf32-i386
-DEBUG_CLANGDWARF_IA32_DLINK2_FLAGS     = DEF(CLANGDWARF_IA32_DLINK2_FLAGS) -O3 -fuse-ld=lld
-
-RELEASE_CLANGDWARF_IA32_CC_FLAGS       = DEF(CLANG38_ALL_CC_FLAGS) -m32 -Oz -flto -march=i586 DEF(CLANG38_IA32_TARGET) -malign-double
-RELEASE_CLANGDWARF_IA32_DLINK_FLAGS    = DEF(CLANGDWARF_IA32_X64_DLINK_FLAGS) -flto -Wl,-O3 -Wl,-melf_i386 -Wl,--oformat,elf32-i386
-RELEASE_CLANGDWARF_IA32_DLINK2_FLAGS   = DEF(CLANGDWARF_IA32_DLINK2_FLAGS) -O3 -fuse-ld=lld
-
-NOOPT_CLANGDWARF_IA32_CC_FLAGS         = DEF(CLANG38_ALL_CC_FLAGS) -m32 -O0 -march=i586 DEF(CLANG38_IA32_TARGET) -g -malign-double
-NOOPT_CLANGDWARF_IA32_DLINK_FLAGS      = DEF(CLANGDWARF_IA32_X64_DLINK_FLAGS) -Wl,-O0 -Wl,-melf_i386 -Wl,--oformat,elf32-i386
-NOOPT_CLANGDWARF_IA32_DLINK2_FLAGS     = DEF(CLANGDWARF_IA32_DLINK2_FLAGS) -O0 -fuse-ld=lld
-
-##########################
-# CLANGDWARF X64 definitions
-##########################
-*_CLANGDWARF_X64_CC_PATH              = DEF(CLANGDWARF_X64_PREFIX)clang
-*_CLANGDWARF_X64_SLINK_PATH           = DEF(CLANGDWARF_X64_PREFIX)llvm-ar
-*_CLANGDWARF_X64_DLINK_PATH           = DEF(CLANGDWARF_X64_PREFIX)clang
-*_CLANGDWARF_X64_ASLDLINK_PATH        = DEF(CLANGDWARF_X64_PREFIX)clang
-*_CLANGDWARF_X64_ASM_PATH             = DEF(CLANGDWARF_X64_PREFIX)clang
-*_CLANGDWARF_X64_PP_PATH              = DEF(CLANGDWARF_X64_PREFIX)clang
-*_CLANGDWARF_X64_VFRPP_PATH           = DEF(CLANGDWARF_X64_PREFIX)clang
-*_CLANGDWARF_X64_ASLCC_PATH           = DEF(CLANGDWARF_X64_PREFIX)clang
-*_CLANGDWARF_X64_ASLPP_PATH           = DEF(CLANGDWARF_X64_PREFIX)clang
-*_CLANGDWARF_X64_RC_PATH              = DEF(CLANGDWARF_X64_PREFIX)llvm-rc
-
-*_CLANGDWARF_X64_ASLCC_FLAGS          = DEF(GCC_ASLCC_FLAGS) -m64 -fno-lto DEF(CLANG38_X64_TARGET)
-*_CLANGDWARF_X64_ASLDLINK_FLAGS       = DEF(CLANGDWARF_IA32_X64_ASLDLINK_FLAGS) -Wl,-m,elf_x86_64 -fuse-ld=lld
-*_CLANGDWARF_X64_ASM_FLAGS            = DEF(GCC5_ASM_FLAGS) -m64 DEF(CLANG38_X64_TARGET)
-*_CLANGDWARF_X64_RC_FLAGS             = DEF(GCC_X64_RC_FLAGS)
-*_CLANGDWARF_X64_OBJCOPY_FLAGS        =
-*_CLANGDWARF_X64_NASM_FLAGS           = -f elf64
-*_CLANGDWARF_X64_PP_FLAGS             = DEF(GCC_PP_FLAGS) DEF(CLANG38_X64_TARGET)
-*_CLANGDWARF_X64_ASLPP_FLAGS          = DEF(GCC_ASLPP_FLAGS) DEF(CLANG38_X64_TARGET)
-*_CLANGDWARF_X64_VFRPP_FLAGS          = DEF(GCC_VFRPP_FLAGS) DEF(CLANG38_X64_TARGET)
-
-DEBUG_CLANGDWARF_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
-DEBUG_CLANGDWARF_X64_DLINK_FLAGS      = DEF(CLANGDWARF_IA32_X64_DLINK_FLAGS) -flto -Wl,-O3 -Wl,-melf_x86_64 -Wl,--oformat,elf64-x86-64 -Wl,-pie -mcmodel=small -Wl,--apply-dynamic-relocs
-DEBUG_CLANGDWARF_X64_DLINK2_FLAGS     = DEF(CLANGDWARF_X64_DLINK2_FLAGS) -O3 -fuse-ld=lld
-
-RELEASE_CLANGDWARF_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)
-RELEASE_CLANGDWARF_X64_DLINK_FLAGS    = DEF(CLANGDWARF_IA32_X64_DLINK_FLAGS) -flto -Wl,-O3 -Wl,-melf_x86_64 -Wl,--oformat,elf64-x86-64 -Wl,-pie -mcmodel=small -Wl,--apply-dynamic-relocs
-RELEASE_CLANGDWARF_X64_DLINK2_FLAGS   = DEF(CLANGDWARF_X64_DLINK2_FLAGS) -O3 -fuse-ld=lld
-
-NOOPT_CLANGDWARF_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
-NOOPT_CLANGDWARF_X64_DLINK_FLAGS      = DEF(CLANGDWARF_IA32_X64_DLINK_FLAGS) -Wl,-O0 -Wl,-melf_x86_64 -Wl,--oformat,elf64-x86-64 -Wl,-pie -mcmodel=small -Wl,--apply-dynamic-relocs
-NOOPT_CLANGDWARF_X64_DLINK2_FLAGS     = DEF(CLANGDWARF_X64_DLINK2_FLAGS) -O0 -fuse-ld=lld
-
 #
 #
 # XCODE5 support
-- 
2.34.1