d731947332
I agree to license my contributions to each file under the terms given at the top of each file I changed.
232 lines
6.6 KiB
Makefile
232 lines
6.6 KiB
Makefile
# Copyright 2015 Brian Smith.
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#
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# Permission to use, copy, modify, and/or distribute this software for any
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# purpose with or without fee is hereby granted, provided that the above
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# copyright notice and this permission notice appear in all copies.
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#
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# THE SOFTWARE IS PROVIDED "AS IS" AND BRIAN SMITH AND THE AUTHORS DISCLAIM
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# ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
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# OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL BRIAN SMITH OR THE AUTHORS
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# BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY
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# DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
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# AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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.DEFAULT_GOAL := all
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# $(TARGET) must be of the form <arch>[<sub>]-<vendor>-<sys>-<abi>.
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# Due to how Rust names platforms the following exceptions are allowed:
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# <abi> can be omitted for Mac OS X (Darwin) and iOS.
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# <vendor> can be omitted for the Android ABIs (android and androideabi).
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# The list of Rust supported platforms is at:
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# https://forge.rust-lang.org/platform-support.html
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TARGET_WORDS = $(subst -, ,$(TARGET))
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TARGET_ARCH_BASE = $(word 1,$(TARGET_WORDS))
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TARGET_ARCH_NORMAL = \
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$(strip $(if $(findstring arm, $(TARGET_ARCH_BASE)),arm, \
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$(if $(filter i386 i486 i586 i686, \
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$(TARGET_ARCH_BASE)),x86,$(TARGET_ARCH_BASE))))
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TARGET_VENDOR = $(word 2,$(TARGET_WORDS))
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TARGET_SYS = $(word 3,$(TARGET_WORDS))
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TARGET_ABI = $(word 4,$(TARGET_WORDS))
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# Match how Rust names targets to our expectations.
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ifeq ($(TARGET_ABI),)
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# Set ABI when building for Mac OS X and iOS.
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ifeq ($(TARGET_VENDOR),apple)
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TARGET_ABI = macho
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# Set the correct VENDOR, SYS and ABI when building for Android.
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else ifeq ($(findstring linux-android,$(TARGET_VENDOR)-$(TARGET_SYS)),linux-android)
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TARGET_ABI = $(TARGET_SYS)
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TARGET_VENDOR = unknow
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TARGET_SYS = linux
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else
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define NEWLINE
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endef
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$(error TARGET must be of the form \
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<arch>[<sub>]-<vendor>-<sys>-<abi>.$(NEWLINE)\
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\
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Exceptions: <abi> defaults to "macho" on Mac OS X \
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and <vendor> defaults to "unknown" on Android. $(NEWLINE)\
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Linux x86 example: TARGET=i586-pc-linux-gnu $(NEWLINE)\
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Mac OS X x64 example: TARGET=x86_64-apple-darwin $(NEWLINE)\
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Android example: TARGET=arm-linux-androideabi $(NEWLINE)\
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\
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NOTE: Use "i586" instead of "x86")
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endif
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endif
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# XXX: Apple's toolchain fails to link when the |-target| arch is "x86_64",
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# so just skip -target on Darwin for now.
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ifneq ($(TARGET_ARCH_NORMAL)-$(findstring darwin,$(TARGET_SYS)),x86_64-darwin)
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ifeq ($(findstring clang,$(CC)),clang)
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DEFAULT_TARGET_ARCH = -target "$(TARGET)"
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endif
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endif
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ifeq ($(TARGET_ARCH_NORMAL),x86)
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MARCH = pentium
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MINSTR = 32
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else ifeq ($(TARGET_ARCH_NORMAL),x86_64)
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MARCH = x86-64
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MINSTR = 64
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else
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# TODO: Pass -march and related options. For now, use the default of the
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# toolchain's C compiler.
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# MARCH = $(subst _,-,$(TARGET_ARCH_BASE))
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endif
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ifeq ($(TARGET_ABI),eabi)
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MABI = aapcs
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endif
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# Cortex-M0, Cortex-M0+, Cortex-M1: armv6_m
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# Cortex-M3: armv7_m
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# Cortex-M4, Cortex-M7: armv7e_m
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ifeq ($(filter-out armv6_m armv7_m armv7e_m,$(TARGET_ARCH_BASE)),)
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MINSTR = thumb
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endif
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# Although it isn't mentioned in the GNU Make manual, GNU Make passes
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# $(TARGET_ARCH) in its implicit rules.
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TARGET_ARCH += $(if $(MCPU),-mcpu=$(MCPU)) \
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$(if $(MARCH),-march=$(MARCH)) \
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$(if $(MABI),-mabi=$(MABI)) \
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$(if $(MINSTR),-m$(MINSTR)) \
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$(NULL)
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ifeq ($(CC),)
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$(error You must specify CC)
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endif
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ifeq ($(CXX),)
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$(error You must specify CXX)
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endif
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# e.g. "clang-3.6"
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COMPILER_NAME ?= $(notdir $(CC))
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# Generate output to a directory like build/x86_64-unknown-linux-elf-clang-3.6.
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BUILD_PREFIX_PRIMARY ?= build
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BUILD_PREFIX_SUB ?= $(TARGET)-$(COMPILER_NAME)
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BUILD_PREFIX ?= $(BUILD_PREFIX_PRIMARY)/$(BUILD_PREFIX_SUB)/
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EXE_PREFIX ?= $(BUILD_PREFIX)test/ring/
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OBJ_PREFIX ?= $(BUILD_PREFIX)obj/
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LIB_PREFIX ?= $(BUILD_PREFIX)lib/
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# GCC 4.6 requires "c1x" and "c++0x" instead of "c11" and "c++11".
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CFLAGS_STD ?= -std=c1x
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CXXFLAGS_STD ?= -std=c++0x
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CFLAGS += $(CFLAGS_STD)
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CXXFLAGS += $(CXXFLAGS_STD)
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# Always add full debug info and strip dead code.
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CPPFLAGS += -fpic -fdata-sections -ffunction-sections
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ifeq ($(findstring darwin,$(TARGET_SYS)),darwin)
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# |-gfull| is required for Darwin's |-dead_strip|.
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CPPFLAGS += -gfull
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LDFLAGS += -fPIC -Wl,-dead_strip
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else
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CPPFLAGS += -g3
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LDFLAGS += -Wl,--gc-sections
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endif
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ASFLAGS += -Wa,--noexecstack,-gdwarf
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# TODO: link-time optimization.
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# Warnings
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# TODO:
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# -fsanitize=undefined \
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# -fsized-deallocation \
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# -Wconversion \
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# -Weverything -Wpessimizing-move, etc. \
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# -Wnormalized \
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# -Wmisleading-indentation \
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# -Wsign-conversion\
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# -Wsized-deallocation \
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# -Wstack-usage=n \
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# -Wsuggest-attribute \
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# -Wsuggest-final-types \
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# -Wsuggest-final-methods \
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# -Wsuggest-override \
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# -Wstrict-overflow=5 \
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# -Wzero-as-null-pointer-constant \
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# TODO: clang-specific warnings
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# TODO (not in clang):
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# -Wlogical-op \
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# -Wmaybe-uninitialized \
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# -Wtrampolines \
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# -Wunsafe-loop-optimizations \
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# TODO (GCC 4.9+):
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# -Wconditionally-supported
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# -Wdate-time
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CPPFLAGS += \
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-pedantic -pedantic-errors \
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\
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-Wall -Werror \
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-Wextra \
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\
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-Wcast-align \
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-Wcast-qual \
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-Wenum-compare \
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-Wfloat-equal \
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-Wformat=2 \
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-Winline \
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-Winvalid-pch \
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-Wmissing-declarations \
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-Wmissing-field-initializers \
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-Wmissing-include-dirs \
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-Wredundant-decls \
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-Wshadow \
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-Wsign-compare \
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-Wundef \
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-Wuninitialized \
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-Wwrite-strings \
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$(NULL)
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# XXX: Stack protector causes linking failures for armv7-*-none-eabi and
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# it's use seems questionable for that kind of target anyway.
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# The launchpad.net arm-none-eabi-gcc toolchain (at least) uses -fshort-enums.
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ifneq ($(TARGET_SYS),none)
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CPPFLAGS += -fstack-protector
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endif
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# TODO (not in clang):
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# -Wjump-misses-init
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# -Wold-style-declaration \
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# -Wold-style-definition
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CFLAGS += \
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-Wbad-function-cast \
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-Wmissing-field-initializers \
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-Wmissing-prototypes \
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-Wnested-externs \
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-Wstrict-prototypes \
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$(NULL)
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CMAKE_BUILD_TYPE ?= RELWITHDEBINFO
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# Although we don't use CMake, we use a variable CMAKE_BUILD_TYPE with similar
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# semantics to the CMake variable of that name.
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ifeq ($(CMAKE_BUILD_TYPE),MINSIZEREL)
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CPPFLAGS += -DNDEBUG -Os
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else ifeq ($(CMAKE_BUILD_TYPE),RELEASE)
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CPPFLAGS += -DNDEBUG -O3
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else ifeq ($(CMAKE_BUILD_TYPE),RELWITHDEBINFO)
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CPPFLAGS += -DNDEBUG -O3
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else ifeq ($(CMAKE_BUILD_TYPE),DEBUG)
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# Do nothing
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else
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$(error invalid value for CMAKE_BUILD_TYPE: $(CMAKE_BUILD_TYPE))
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endif
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