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423 lines
13 KiB
PHP
423 lines
13 KiB
PHP
# This Makefile is intended to be included by another Makefile. It contains a
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# number of common functions, variables, recipes. Ideally the calling Makefile
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# will only need to define targets for that project.
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#
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# Features:
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# - Shadow building
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# - Auto dependency generation
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# - debug target uses address sanitizer when available (GCC >= 4.8.0),
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# and undefined behavior sanitizer (GCC >=4.9.0)
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# - coloured error messages when available (GCC >=4.9.0)
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# - pre-configured targets for cleaning .o files, insure leftovers
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# - targets for callgrind, memcheck, insure, profiling and code coverage
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#
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# Organization
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# - Supporting functions
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# - Definitions of the variables used by this makefile (ex., CXX, WARNINGS)
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# - Predefined configurations of variables (ex., DEBUG)
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# - File type targets (ex., .o)
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# - Named targets (ex., profile)
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# - Inclusion of auto-dependencies
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#
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# TODO Profile guided optimization
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# TODO Precompiled headers
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# TODO Static analysis
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# TODO Clang support
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# TODO -fsanitize=integer for clang
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# TODO -fsanitize=thread
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# TODO ubsan prints messages to the stderr; does not terminate
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# TODO dynamic/static libs
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# TODO _GLIBCXX_DEBUG and _GLIBCXX_DEBUG_PEDANTIC
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# TODO split up makefile into common functions, variables, configurations, recipes
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# TODO -B option for TOOLCHAIN
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# TODO CONFIG=RELEASE (strip, for example)
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# TODO Different debug levels
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# TODO CONFIG=HARDENED including some of the following options
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# TODO -fstack-protector-strong?
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# TODO -Wformat-security
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# TODO -pie -fPIE
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# TODO full relro -Wl,-z,relro,-z,now
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# TODO -pipe
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# TODO -flto
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# Shadow building ==============================================================
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# This gets the directory of the calling Makefile (and, presumably, where the
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# source code resides
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# Functions ====================================================================
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gccversion = $(shell $(CXX) -dumpversion | sed -e 's/\.\([0-9][0-9]\)/\1/g' -e 's/\.\([0-9]\)/0\1/g' -e 's/^[0-9]\{3,4\}$$/&00/')
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gcc48 = $(shell expr $(gccversion) \>= 40800)
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gcc49 = $(shell expr $(gccversion) \>= 40900)
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gcc51 = $(shell expr $(gccversion) \>= 50100)
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# Convert a word to lowercase
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lower = $(shell echo $(1) | tr '[:upper:]' '[:lower:]')
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# Convert a word to uppercase
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upper = $(shell echo $(1) | tr '[:lower:]' '[:upper:]')
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# Variables ====================================================================
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#
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# The basic variables that this makefile uses
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# Toolchain --------------------------------------------------------------------
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# Which programs to use during compilation
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# Path to a different toolchain (ex., ~/bin/gcc-4.9.0)
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TOOLCHAIN =
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ifndef TOOLCHAIN
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# C++ compiler
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CXX = g++
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# Archive (.a) program
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AR = ar
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# Linker
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LD = $(CXX)
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PROFILER = gprof
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else
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# Use a particular set of tools
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CXX = $(TOOLCHAIN)/bin/g++ -B$(TOOLCHAIN)/bin/
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AR = $(TOOLCHAIN)/bin/ar
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LD = $(CXX)
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PROFILER = $(TOOLCHAIN)/bin/gprof
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endif
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# Misc
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VALGRIND = valgrind
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# Compiler flags ---------------------------------------------------------------
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# Arguments to the toolchain programs
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# Which version of C++ to compile for
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STANDARD = -ansi -pedantic
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# Optimization flags
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OPTIMIZATION = -O2
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# Architecture flags
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TARGET_ARCH =
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# Warnings
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WARNINGS = -Wall -Wsign-compare -Wconversion -Wpointer-arith \
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-Winit-self -Wcast-qual -Wredundant-decls -Wcast-align -Wwrite-strings \
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-Wno-long-long -Woverloaded-virtual -Wformat -Wno-unknown-pragmas \
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-Wnon-virtual-dtor -Wno-c++0x-compat
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# -Wold-style-cast
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ifeq "$(gcc51)" "1"
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#WARNINGS += -Wsuggest-attribute=const -Wsuggest-attribute=pure
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endif
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# Level of debugging information to provide
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DEBUGGING = -g
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# Machine independent options
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#-fno-nonansi-builtins
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OPTIONS = -fuse-cxa-atexit -ffor-scope
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ifeq "$(gcc49)" "1"
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OPTIONS += -fdiagnostics-color
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endif
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# Flags to use when compiling C++ source into object files
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CXXFLAGS = $(STANDARD) $(DEBUGGING) $(OPTIMIZATION) $(WARNINGS) $(OPTIONS) $(TARGET_ARCH)
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# Directories to search for includes
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INCLUDE =
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# Any macros that can be defined on the command line
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DEFINES = -D_FORTIFY_SOURCE=1
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# Preprocessor flags
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CPPFLAGS = $(INCLUDE) $(DEFINES)
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# How to build an archive
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ARFLAGS = crs
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# Linker flags
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LDFLAGS =
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LDLIBS =
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ifdef TOOLCHAIN
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# Statically link the GCC and
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LDFLAGS += -static-libgcc -static-libstdc++
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# Dynamic linking
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#LDFLAGS += -Wl,-rpath -Wl,$(TOOLCHAIN)/lib
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#LDLIBS = -L$(TOOLCHAIN)/lib
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endif
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# Printing =====================================================================
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# If this is not empty, print messages
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VERBOSE =
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# Predefined configurations ====================================================
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# Combinations of the OPTIMIZATION, etc.
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ifdef CONFIG
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UCONFIG := $(call upper,$(CONFIG))
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# Fast -------------------------------------------------------------------------
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# A faster build, primarily for testing
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ifeq "$(UCONFIG)" "FAST"
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OPTIMIZATION = -O0
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endif
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# Tune -------------------------------------------------------------------------
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# Heavily optimized for a fast application
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ifeq "$(UCONFIG)" "TUNE"
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ifeq "$(gcc48)" "1"
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TARGET_ARCH = -march=native
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endif
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OPTIMIZATION = -O3 -mtune=native
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endif
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# Debug ------------------------------------------------------------------------
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# Programmer is tracking a bug
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ifeq "$(UCONFIG)" "DEBUG"
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# Set additional warnings and flags
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WARNINGS += -Wshadow -Wfloat-equal
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ifeq "$(gcc51)" "1"
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WARNINGS += -Wstrict-overflow=5
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endif
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DEBUGGING = -ggdb3 -fno-omit-frame-pointer -fno-default-inline -fno-inline -fno-merge-constants -ffloat-store
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# -fno-elide-constructors
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# Set the optimization level
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ifeq "$(gcc48)" "1"
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OPTIMIZATION = -Og
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else
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OPTIMIZATION = -O0
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endif
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# Turn on address sanitizer
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ifeq "$(gcc48)" "1"
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DEBUGGING += -fsanitize=address
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LDFLAGS += -fsanitize=address -static-libasan
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endif
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# Turn on undefined behavior sanitizer and leak sanitizer
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ifeq "$(gcc49)" "1"
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DEBUGGING += -fsanitize=undefined -fsanitize=leak
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LDFLAGS += -fsanitize=undefined -fsanitize=leak -static-libubsan -static-liblsan
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endif
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endif
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# Profile ----------------------------------------------------------------------
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# Programmer wants profile information
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ifeq "$(UCONFIG)" "PROFILE"
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OPTIMIZATION = -O2 -pg
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LDFLAGS += -pg
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endif
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# Coverage ---------------------------------------------------------------------
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# Programmer wants code coverage information
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ifeq "$(UCONFIG)" "COVERAGE"
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DEBUGGING += --coverage -fno-elide-constructors
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LDFLAGS += --coverage
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OPTIMIZATION = -O0
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endif
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# Insure -----------------------------------------------------------------------
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# Programmer wants to run insure
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ifeq "$(UCONFIG)" "INSURE"
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CXX = insure
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LDLIBS += -lstdc++
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OPTIMIZATION = -O0
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endif
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endif
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# Targets ======================================================================
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.PHONY: no_default_goal depend clean_insure clean_objects clean_profile clean_depend distclean coverage profile memcheck callgrind cachegrind help help_common examples
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no_default_goal:
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$(error "The including Makefile hasn't specified a default goal. It should.")
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# Dependency generation --------------------------------------------------------
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DEPDIR := .deps
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# Build object files with automatic dependency generation
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# TODO maybe use LINK.cpp from 'make -p'
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%.o: %.cpp
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@mkdir -p $(@D)/$(DEPDIR)
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ifeq ($(VERBOSE),)
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@echo [CXX] $@
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@$(CXX) -c $(CXXFLAGS) $(CPPFLAGS) -MMD -MP -MF $(@D)/$(DEPDIR)/$(*F).d -o $@ $<
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else
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$(CXX) -c $(CXXFLAGS) $(CPPFLAGS) -MMD -MP -MF $(@D)/$(DEPDIR)/$(*F).d -o $@ $<
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endif
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%.a:
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ifeq ($(VERBOSE),)
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@echo [AR] $@
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@$(AR) $(ARFLAGS) $@ $^ > /dev/null
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else
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$(AR) $(ARFLAGS) $@ $^ > /dev/null
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endif
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# A script for combining .a's. Dependency list for the mri should be
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# subdirectories containing static libs. Name of the output library
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# is inferred from the mri name (abc.mri produces libabc.a)
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%.mri:
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@echo 'CREATE $(patsubst %.mri,lib%.a,$@)' > $@
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@for dir in $^; do echo ADDLIB $$dir >> $@; done
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@echo 'SAVE' >> $@
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# TODO dynamic libs
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# %.so: CXXFLAGS += -fPIC
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# %.so: LDFLAGS := -shared
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# %.so:
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# $(CXX) $(LDFLAGS) $^ $(LDLIBS) -o $@
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# optionally add -Wl,-soname,$(SONAME)
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# TODO java classes
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# %.class: %.java
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# $(JC) -cp . $<
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# Code coverage ----------------------------------------------------------------
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coverage:
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ifdef COVERAGE_OUT
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@TMPFILE=`mktemp`; lcov --capture --directory . --output-file $$TMPFILE; genhtml $$TMPFILE --output-directory $(COVERAGE_OUT); $(RM) $$TMPFILE
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else
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$(error You have not set COVERAGE_OUT)
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endif
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# Profiling --------------------------------------------------------------------
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profile:
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ifdef PROFILE_TARGET
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$(PROFILE_TARGET) $(PROFILE_TARGET_ARGS)
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ifdef PROFILE_OUT
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@$(PROFILER) -c $(PROFILE_TARGET) > $(PROFILE_OUT)
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else
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$(error You have not specified PROFILE_OUT)
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endif
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else
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$(error You have not specified PROFILE_TARGET)
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endif
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# Memcheck ---------------------------------------------------------------------
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# User should set MEMCHECK_TARGET, MEMCHECK_TARGET_ARGS, and a recipe like:
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# memcheck: $(MEMCHECK_TARGET)
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memcheck:
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$(VALGRIND) --tool=memcheck -v --read-var-info=yes --track-origins=yes --show-reachable=yes --leak-check=full --read-inline-info=yes --keep-stacktraces=alloc-and-free $(VALGRIND_TARGET) $(VALGRIND_TARGET_ARGS) 2> $(MEMCHECK_OUT)
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# Callgrind --------------------------------------------------------------------
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# User should set CALLGRIND_TARGET, CALLGRIND_TARGET_ARGS, and a recipe like:
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# callgrind: $(CALLGRIND_TARGET)
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callgrind:
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$(VALGRIND) --tool=callgrind $(VALGRIND_TARGET) $(VALGRIND_TARGET_ARGS)
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cachegrind:
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$(VALGRIND) --tool=cachegrind --branch-sim=yes $(VALGRIND_TARGET) $(VALGRIND_TARGET_ARGS)
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# Clean targets ----------------------------------------------------------------
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# remove all .o files
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clean_objects:
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ifeq ($(VERBOSE),)
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@find -name '*.o' -exec $(RM) '{}' \;
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else
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find -name '*.o' -exec $(RM) '{}' \;
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endif
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# remove all files left by insure
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clean_insure:
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ifeq ($(VERBOSE),)
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@find -name '*.tcl' -exec $(RM) '{}' \;
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@$(RM) tca.map tca.log
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else
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find -name '*.tcl' -exec $(RM) '{}' \;
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$(RM) tca.map tca.log
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endif
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# remove all files left by gprof
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clean_profile:
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ifeq ($(VERBOSE),)
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@$(RM) profile
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@find \( -name '*.gcda' -o -name '*.gcno' \) -exec $(RM) '{}' \;
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else
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$(RM) profile
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find \( -name '*.gcda' -o -name '*.gcno' \) -exec $(RM) '{}' \;
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endif
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clean_depend:
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ifeq ($(VERBOSE),)
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@find -depth -name $(DEPDIR) -type d -exec $(RM) -r '{}' \;
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else
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find -depth -name $(DEPDIR) -type d -exec $(RM) -r '{}' \;
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endif
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depend: clean clean_depend
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distclean: depend
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# Documentation ----------------------------------------------------------------
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help_common:
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@echo "==================================================================="
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@echo "Here are some standard Makefile variables and their defaults:"
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@echo " CXX ($(CXX))"
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@echo " CPPFLAGS ($(CPPFLAGS))"
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@echo " LDFLAGS ($(LDFLAGS))"
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@echo " LDLIBS ($(LDLIBS))"
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@echo " AR ($(AR))"
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@echo " ARFLAGS ($(ARFLAGS))"
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@echo
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@echo "You can set the TOOLCHAIN variable to use a different compiler,"
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@echo "linker, profiler. Ex., (~/bin/gcc-4.9.0)"
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@echo
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@echo "The CXXFLAGS variable is comprised of a number of other variables:"
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@echo " STANDARD ($(STANDARD))"
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@echo " DEBUGGING ($(DEBUGGING))"
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@echo " OPTIMIZATION ($(OPTIMIZATION))"
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@echo " WARNINGS ($(WARNINGS))"
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@echo " TARGET_ARCH ($(TARGET_ARCH))"
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@echo
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@echo "For convenience, several preconfigured options are available by"
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@echo "setting the CONFIG variale:"
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@echo " DEBUG - Turns on debugging info; turns down optimization; enables"
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@echo " address sanitizer, etc. if available"
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@echo " PROFILE - Keeps optimization for release build; adds debugging"
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@echo " and gprof flags"
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@echo " COVERAGE - Don't inline functions"
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@echo " INSURE - Build the target with the insure compiler"
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@echo " TUNE - High optimization level; CPU-specific instructions"
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@echo " FAST - A fast compilation with low optimization level"
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@echo
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@echo "==================================================================="
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@echo "Here are some special targets and variables that affect them"
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@echo
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@echo " profile - First build a target with CONFIG=PROFILE and run it."
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@echo " PROFILE_TARGET the name of the program to profile"
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@echo " (default: $(PROFILE_TARGET))"
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@echo " PROFILE_TARGET_ARGS arguments to the program to profile"
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@echo " (default: $(PROFILE_TARGET_ARGS))"
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@echo " PROFILE_OUT the file to place the profile data in"
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@echo " (default: $(PROFILE_OUT))"
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@echo " PROFILER Path to profiler"
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@echo " (default: $(PROFILER))"
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@echo " coverage - First build a target with CONFIG=COVERAGE and run it."
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@echo " COVERAGE_OUT specifies where to put the resulting web pages"
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@echo " (default: $(COVERAGE_OUT))"
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@echo
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@echo " memcheck - Run memcheck for VALGRIND_TARGET, testing memory access"
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@echo " callgrind - Run callgrind for VALGRIND_TARGET, testing performance"
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@echo " cachegrind - Run cachegrind for VALGRIND_TARGET, testing cache"
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@echo " VALGRIND_TARGET The program to check"
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@echo " (default: $(VALGRIND_TARGET))"
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@echo " VALGRIND_TARGET_ARGS The arguments to VALGRIND_TARGET"
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@echo " (default: $(VALGRIND_TARGET_ARGS))"
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@echo " MEMCHECK_OUT Where to put the memcheck results"
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@echo " (default: $(MEMCHECK_OUT))"
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@echo "==================================================================="
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help: help_common
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# ==============================================================================
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# Include dependencies which are stored as .d files in the $(DEPDIR) directories
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# TODO prefer -wholename to -path, but old version of find doesn't have wholename
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-include $(shell find -path '*/$(DEPDIR)/*.d')
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