## @file\r
#\r
# The makefile can be invoked with\r
-# ARCH = x86_64 or x64 for EM64T build\r
-# ARCH = ia32 or IA32 for IA32 build\r
-# ARCH = ia64 or IA64 for IA64 build\r
+# HOST_ARCH = x86_64 or x64 for EM64T build\r
+# HOST_ARCH = ia32 or IA32 for IA32 build\r
+# HOST_ARCH = Arm or ARM for ARM build\r
#\r
-# Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>\r
-# This program and the accompanying materials\r
-# are licensed and made available under the terms and conditions of the BSD License\r
-# which accompanies this distribution. The full text of the license may be found at\r
-# http://opensource.org/licenses/bsd-license.php\r
-#\r
-# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
-# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+# Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>\r
+# SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
-ARCH ?= IA32\r
+ifndef HOST_ARCH\r
+ #\r
+ # If HOST_ARCH is not defined, then we use 'uname -m' to attempt\r
+ # try to figure out the appropriate HOST_ARCH.\r
+ #\r
+ uname_m = $(shell uname -m)\r
+ $(info Attempting to detect HOST_ARCH from 'uname -m': $(uname_m))\r
+ ifneq (,$(strip $(filter $(uname_m), x86_64 amd64)))\r
+ HOST_ARCH=X64\r
+ endif\r
+ ifeq ($(patsubst i%86,IA32,$(uname_m)),IA32)\r
+ HOST_ARCH=IA32\r
+ endif\r
+ ifneq (,$(findstring aarch64,$(uname_m)))\r
+ HOST_ARCH=AARCH64\r
+ endif\r
+ ifneq (,$(findstring arm,$(uname_m)))\r
+ HOST_ARCH=ARM\r
+ endif\r
+ ifndef HOST_ARCH\r
+ $(info Could not detected HOST_ARCH from uname results)\r
+ $(error HOST_ARCH is not defined!)\r
+ endif\r
+ $(info Detected HOST_ARCH of $(HOST_ARCH) using uname.)\r
+endif\r
\r
CYGWIN:=$(findstring CYGWIN, $(shell uname -s))\r
LINUX:=$(findstring Linux, $(shell uname -s))\r
DARWIN:=$(findstring Darwin, $(shell uname -s))\r
\r
-CC = gcc\r
-CXX = g++\r
-AS = gcc\r
-AR = ar\r
-LD = ld\r
-LINKER ?= $(CC)\r
-ifeq ($(ARCH), IA32)\r
+BUILD_CC ?= gcc\r
+BUILD_CXX ?= g++\r
+BUILD_AS ?= gcc\r
+BUILD_AR ?= ar\r
+BUILD_LD ?= ld\r
+LINKER ?= $(BUILD_CC)\r
+ifeq ($(HOST_ARCH), IA32)\r
ARCH_INCLUDE = -I $(MAKEROOT)/Include/Ia32/\r
-endif\r
\r
-ifeq ($(ARCH), X64)\r
+else ifeq ($(HOST_ARCH), X64)\r
ARCH_INCLUDE = -I $(MAKEROOT)/Include/X64/\r
+\r
+else ifeq ($(HOST_ARCH), ARM)\r
+ARCH_INCLUDE = -I $(MAKEROOT)/Include/Arm/\r
+\r
+else ifeq ($(HOST_ARCH), AARCH64)\r
+ARCH_INCLUDE = -I $(MAKEROOT)/Include/AArch64/\r
+\r
+else\r
+$(error Bad HOST_ARCH)\r
endif\r
\r
INCLUDE = $(TOOL_INCLUDE) -I $(MAKEROOT) -I $(MAKEROOT)/Include/Common -I $(MAKEROOT)/Include/ -I $(MAKEROOT)/Include/IndustryStandard -I $(MAKEROOT)/Common/ -I .. -I . $(ARCH_INCLUDE) \r
-CPPFLAGS = $(INCLUDE)\r
-CFLAGS = -MD -fshort-wchar -fno-strict-aliasing -fno-merge-constants -nostdlib -Wall -Werror -c -g\r
-LFLAGS =\r
+BUILD_CPPFLAGS = $(INCLUDE)\r
\r
+# keep EXTRA_OPTFLAGS last\r
+BUILD_OPTFLAGS = -O2 $(EXTRA_OPTFLAGS)\r
+\r
+ifeq ($(DARWIN),Darwin)\r
+# assume clang or clang compatible flags on OS X\r
+BUILD_CFLAGS = -MD -fshort-wchar -fno-strict-aliasing -Wall -Werror -Wno-deprecated-declarations -Wno-self-assign -Wno-unused-result -nostdlib -g\r
+else\r
+BUILD_CFLAGS = -MD -fshort-wchar -fno-strict-aliasing -Wall -Werror -Wno-deprecated-declarations -Wno-stringop-truncation -Wno-restrict -Wno-unused-result -nostdlib -g\r
+endif\r
+BUILD_LFLAGS =\r
+BUILD_CXXFLAGS = -Wno-unused-result\r
+\r
+ifeq ($(HOST_ARCH), IA32)\r
#\r
-# Snow Leopard is a 32-bit and 64-bit environment. uname -m returns -i386, but gcc defaults \r
-# to x86_64. So make sure tools match uname -m\r
+# Snow Leopard is a 32-bit and 64-bit environment. uname -m returns i386, but gcc defaults \r
+# to x86_64. So make sure tools match uname -m. You can manual have a 64-bit kernal on Snow Leopard\r
+# so only do this is uname -m returns i386.\r
#\r
-uname_s = $(shell uname -s)\r
-uname_m = $(shell uname -m)\r
-ifeq ($(uname_s),Darwin)\r
-ifeq ($(uname_m),i386)\r
- CFLAGS += -arch i386\r
- CPPFLAGS += -arch i386\r
- LFLAGS += -arch i386\r
+ifeq ($(DARWIN),Darwin)\r
+ BUILD_CFLAGS += -arch i386\r
+ BUILD_CPPFLAGS += -arch i386\r
+ BUILD_LFLAGS += -arch i386\r
endif\r
endif\r
+\r
+# keep BUILD_OPTFLAGS last\r
+BUILD_CFLAGS += $(BUILD_OPTFLAGS)\r
+BUILD_CXXFLAGS += $(BUILD_OPTFLAGS)\r
\r
+# keep EXTRA_LDFLAGS last\r
+BUILD_LFLAGS += $(EXTRA_LDFLAGS)\r
+\r
.PHONY: all\r
.PHONY: install\r
.PHONY: clean\r