# Stockfish, a UCI chess playing engine derived from Glaurung 2.1
-# Copyright (C) 2004-2007 Tord Romstad
-# Copyright (C) 2008 Marco Costalba
-
-# This file is part of Stockfish.
+# Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
+# Copyright (C) 2008-2014 Marco Costalba, Joona Kiiski, Tord Romstad
#
# Stockfish is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# along with this program. If not, see <http://www.gnu.org/licenses/>.
-###
-### Files
-###
-
-EXE = stockfish
+### ==========================================================================
+### Section 1. General Configuration
+### ==========================================================================
-OBJS = application.o bitboard.o pawns.o material.o endgame.o evaluate.o main.o \
- misc.o move.o movegen.o history.o movepick.o search.o piece.o \
- position.o direction.o tt.o value.o uci.o ucioption.o \
- mersenne.o book.o bitbase.o san.o benchmark.o
+### Establish the operating system name
+UNAME = $(shell uname)
+### Executable name
+EXE = stockfish
-###
-### Rules
-###
-
-all: $(EXE) .depend
+### Installation dir definitions
+PREFIX = /usr/local
+# Haiku has a non-standard filesystem layout
+ifeq ($(UNAME),Haiku)
+ PREFIX=/boot/system/non-packaged
+endif
+BINDIR = $(PREFIX)/bin
+
+### Built-in benchmark for pgo-builds
+PGOBENCH = ./$(EXE) bench 32 1 1 default time
+
+### Object files
+OBJS = benchmark.o bitbase.o bitboard.o endgame.o evaluate.o main.o \
+ material.o misc.o movegen.o movepick.o notation.o pawns.o \
+ position.o search.o thread.o timeman.o tt.o uci.o ucioption.o
+
+### ==========================================================================
+### Section 2. High-level Configuration
+### ==========================================================================
+#
+# flag --- Comp switch --- Description
+# ----------------------------------------------------------------------------
+#
+# debug = yes/no --- -DNDEBUG --- Enable/Disable debug mode
+# optimize = yes/no --- (-O3/-fast etc.) --- Enable/Disable optimizations
+# arch = (name) --- (-arch) --- Target architecture
+# os = (name) --- --- Target operating system
+# bits = 64/32 --- -DIS_64BIT --- 64-/32-bit operating system
+# prefetch = yes/no --- -DUSE_PREFETCH --- Use prefetch x86 asm-instruction
+# bsfq = yes/no --- -DUSE_BSFQ --- Use bsfq x86_64 asm-instruction (only
+# with GCC and ICC 64-bit)
+# popcnt = yes/no --- -DUSE_POPCNT --- Use popcnt x86_64 asm-instruction
+# sse = yes/no --- -msse --- Use Intel Streaming SIMD Extensions
+# pext = yes/no --- -DUSE_PEXT --- Use pext x86_64 asm-instruction
+#
+# Note that Makefile is space sensitive, so when adding new architectures
+# or modifying existing flags, you have to make sure there are no extra spaces
+# at the end of the line for flag values.
+
+### 2.1. General and architecture defaults
+optimize = yes
+debug = no
+os = any
+bits = 32
+prefetch = no
+bsfq = no
+popcnt = no
+sse = no
+pext = no
+
+### 2.2 Architecture specific
+
+ifeq ($(ARCH),general-32)
+ arch = any
+endif
+
+ifeq ($(ARCH),x86-32-old)
+ arch = i386
+endif
+
+ifeq ($(ARCH),x86-32)
+ arch = i386
+ prefetch = yes
+ sse = yes
+endif
+
+ifeq ($(ARCH),general-64)
+ arch = any
+ bits = 64
+endif
+
+ifeq ($(ARCH),x86-64)
+ arch = x86_64
+ bits = 64
+ prefetch = yes
+ bsfq = yes
+ sse = yes
+endif
+
+ifeq ($(ARCH),x86-64-modern)
+ arch = x86_64
+ bits = 64
+ prefetch = yes
+ bsfq = yes
+ popcnt = yes
+ sse = yes
+endif
+
+ifeq ($(ARCH),x86-64-bmi2)
+ arch = x86_64
+ bits = 64
+ prefetch = yes
+ bsfq = yes
+ popcnt = yes
+ sse = yes
+ pext = yes
+endif
+
+ifeq ($(ARCH),armv7)
+ arch = armv7
+ prefetch = yes
+ bsfq = yes
+endif
+
+ifeq ($(ARCH),ppc-32)
+ arch = ppc
+endif
+
+ifeq ($(ARCH),ppc-64)
+ arch = ppc64
+ bits = 64
+endif
+
+
+### ==========================================================================
+### Section 3. Low-level configuration
+### ==========================================================================
+
+### 3.1 Selecting compiler (default = gcc)
+
+CXXFLAGS += -Wall -Wcast-qual -fno-exceptions -fno-rtti $(EXTRACXXFLAGS)
+LDFLAGS += $(EXTRALDFLAGS)
+
+ifeq ($(COMP),)
+ COMP=gcc
+endif
+
+ifeq ($(COMP),gcc)
+ comp=gcc
+ CXX=g++
+ CXXFLAGS += -ansi -pedantic -Wno-long-long -Wextra -Wshadow
+endif
+
+ifeq ($(COMP),mingw)
+ comp=mingw
+ CXX=g++
+ CXXFLAGS += -Wextra -Wshadow
+ LDFLAGS += -static-libstdc++ -static-libgcc
+endif
+
+ifeq ($(COMP),icc)
+ comp=icc
+ CXX=icpc
+ CXXFLAGS += -diag-disable 1476,10120 -Wcheck -Wabi -Wdeprecated -strict-ansi
+endif
+
+ifeq ($(COMP),clang)
+ comp=clang
+ CXX=clang++
+ CXXFLAGS += -pedantic -Wno-long-long -Wextra -Wshadow
+endif
+
+ifeq ($(comp),icc)
+ profile_prepare = icc-profile-prepare
+ profile_make = icc-profile-make
+ profile_use = icc-profile-use
+ profile_clean = icc-profile-clean
+else
+ profile_prepare = gcc-profile-prepare
+ profile_make = gcc-profile-make
+ profile_use = gcc-profile-use
+ profile_clean = gcc-profile-clean
+endif
+
+ifeq ($(UNAME),Darwin)
+ CXXFLAGS += -arch $(arch) -mmacosx-version-min=10.6
+ LDFLAGS += -arch $(arch) -mmacosx-version-min=10.6
+endif
+
+### On mingw use Windows threads, otherwise POSIX
+ifneq ($(comp),mingw)
+ # On Android Bionic's C library comes with its own pthread implementation bundled in
+ ifneq ($(arch),armv7)
+ # Haiku has pthreads in its libroot, so only link it in on other platforms
+ ifneq ($(UNAME),Haiku)
+ LDFLAGS += -lpthread
+ endif
+ endif
+endif
+
+### 3.4 Debugging
+ifeq ($(debug),no)
+ CXXFLAGS += -DNDEBUG
+else
+ CXXFLAGS += -g
+endif
+
+### 3.5 Optimization
+ifeq ($(optimize),yes)
+
+ ifeq ($(comp),gcc)
+ CXXFLAGS += -O3
+
+ ifeq ($(UNAME),Darwin)
+ ifeq ($(arch),i386)
+ CXXFLAGS += -mdynamic-no-pic
+ endif
+ ifeq ($(arch),x86_64)
+ CXXFLAGS += -mdynamic-no-pic
+ endif
+ endif
+
+ ifeq ($(arch),armv7)
+ CXXFLAGS += -fno-gcse -mthumb -march=armv7-a -mfloat-abi=softfp
+ endif
+ endif
+
+ ifeq ($(comp),mingw)
+ CXXFLAGS += -O3
+ endif
+
+ ifeq ($(comp),icc)
+ ifeq ($(UNAME),Darwin)
+ CXXFLAGS += -fast -mdynamic-no-pic
+ else
+ CXXFLAGS += -fast
+ endif
+ endif
+
+ ifeq ($(comp),clang)
+ CXXFLAGS += -O3
+
+ ifeq ($(UNAME),Darwin)
+ ifeq ($(pext),no)
+ CXXFLAGS += -flto
+ LDFLAGS += $(CXXFLAGS)
+ endif
+ ifeq ($(arch),i386)
+ CXXFLAGS += -mdynamic-no-pic
+ endif
+ ifeq ($(arch),x86_64)
+ CXXFLAGS += -mdynamic-no-pic
+ endif
+ endif
+ endif
+endif
+
+### 3.6. Bits
+ifeq ($(bits),64)
+ CXXFLAGS += -DIS_64BIT
+endif
+
+### 3.7 prefetch
+ifeq ($(prefetch),yes)
+ ifeq ($(sse),yes)
+ CXXFLAGS += -msse
+ DEPENDFLAGS += -msse
+ endif
+else
+ CXXFLAGS += -DNO_PREFETCH
+endif
+
+### 3.8 bsfq
+ifeq ($(bsfq),yes)
+ CXXFLAGS += -DUSE_BSFQ
+endif
+
+### 3.9 popcnt
+ifeq ($(popcnt),yes)
+ CXXFLAGS += -msse3 -mpopcnt -DUSE_POPCNT
+endif
+
+### 3.10 pext
+ifeq ($(pext),yes)
+ CXXFLAGS += -DUSE_PEXT
+ ifeq ($(comp),$(filter $(comp),gcc clang mingw))
+ CXXFLAGS += -mbmi -mbmi2
+ endif
+endif
+
+### 3.11 Link Time Optimization, it works since gcc 4.5 but not on mingw.
+### This is a mix of compile and link time options because the lto link phase
+### needs access to the optimization flags.
+ifeq ($(comp),gcc)
+ ifeq ($(optimize),yes)
+ ifeq ($(debug),no)
+ GCC_MAJOR := `$(CXX) -dumpversion | cut -f1 -d.`
+ GCC_MINOR := `$(CXX) -dumpversion | cut -f2 -d.`
+ ifeq (1,$(shell expr \( $(GCC_MAJOR) \> 4 \) \| \( $(GCC_MAJOR) \= 4 \& $(GCC_MINOR) \>= 5 \)))
+ CXXFLAGS += -flto
+ LDFLAGS += $(CXXFLAGS)
+ endif
+ endif
+ endif
+endif
+
+### ==========================================================================
+### Section 4. Public targets
+### ==========================================================================
+
+help:
+ @echo ""
+ @echo "To compile stockfish, type: "
+ @echo ""
+ @echo "make target ARCH=arch [COMP=comp]"
+ @echo ""
+ @echo "Supported targets:"
+ @echo ""
+ @echo "build > Standard build"
+ @echo "profile-build > PGO build"
+ @echo "strip > Strip executable"
+ @echo "install > Install executable"
+ @echo "clean > Clean up"
+ @echo ""
+ @echo "Supported archs:"
+ @echo ""
+ @echo "x86-64 > x86 64-bit"
+ @echo "x86-64-modern > x86 64-bit with popcnt support"
+ @echo "x86-64-bmi2 > x86 64-bit with pext support"
+ @echo "x86-32 > x86 32-bit with SSE support"
+ @echo "x86-32-old > x86 32-bit fall back for old hardware"
+ @echo "ppc-64 > PPC 64-bit"
+ @echo "ppc-32 > PPC 32-bit"
+ @echo "armv7 > ARMv7 32-bit"
+ @echo "general-64 > unspecified 64-bit"
+ @echo "general-32 > unspecified 32-bit"
+ @echo ""
+ @echo "Supported compilers:"
+ @echo ""
+ @echo "gcc > Gnu compiler (default)"
+ @echo "mingw > Gnu compiler with MinGW under Windows"
+ @echo "clang > LLVM Clang compiler"
+ @echo "icc > Intel compiler"
+ @echo ""
+ @echo "Non-standard targets:"
+ @echo ""
+ @echo "make hpux > Compile for HP-UX. Compiler = aCC"
+ @echo ""
+ @echo "Examples. If you don't know what to do, you likely want to run: "
+ @echo ""
+ @echo "make build ARCH=x86-64 (This is for 64-bit systems)"
+ @echo "make build ARCH=x86-32 (This is for 32-bit systems)"
+ @echo ""
+
+.PHONY: build profile-build
+build:
+ $(MAKE) ARCH=$(ARCH) COMP=$(COMP) config-sanity
+ $(MAKE) ARCH=$(ARCH) COMP=$(COMP) all
+
+profile-build:
+ $(MAKE) ARCH=$(ARCH) COMP=$(COMP) config-sanity
+ @echo ""
+ @echo "Step 0/4. Preparing for profile build."
+ $(MAKE) ARCH=$(ARCH) COMP=$(COMP) $(profile_prepare)
+ @echo ""
+ @echo "Step 1/4. Building executable for benchmark ..."
+ @touch *.cpp *.h
+ $(MAKE) ARCH=$(ARCH) COMP=$(COMP) $(profile_make)
+ @echo ""
+ @echo "Step 2/4. Running benchmark for pgo-build ..."
+ @$(PGOBENCH) > /dev/null
+ @echo ""
+ @echo "Step 3/4. Building final executable ..."
+ @touch *.cpp
+ $(MAKE) ARCH=$(ARCH) COMP=$(COMP) $(profile_use)
+ @echo ""
+ @echo "Step 4/4. Deleting profile data ..."
+ $(MAKE) ARCH=$(ARCH) COMP=$(COMP) $(profile_clean)
+
+strip:
+ strip $(EXE)
+
+install:
+ -mkdir -p -m 755 $(BINDIR)
+ -cp $(EXE) $(BINDIR)
+ -strip $(BINDIR)/$(EXE)
clean:
- $(RM) *.o .depend stockfish
+ $(RM) $(EXE) $(EXE).exe *.o .depend *~ core bench.txt *.gcda
+default:
+ help
-###
-### Compiler:
-###
-
-# CXX = g++
-# CXX = g++-4.2
-CXX = icpc
+### ==========================================================================
+### Section 5. Private targets
+### ==========================================================================
+all: $(EXE) .depend
-###
-### Dependencies
-###
+config-sanity:
+ @echo ""
+ @echo "Config:"
+ @echo "debug: '$(debug)'"
+ @echo "optimize: '$(optimize)'"
+ @echo "arch: '$(arch)'"
+ @echo "os: '$(os)'"
+ @echo "bits: '$(bits)'"
+ @echo "prefetch: '$(prefetch)'"
+ @echo "bsfq: '$(bsfq)'"
+ @echo "popcnt: '$(popcnt)'"
+ @echo "sse: '$(sse)'"
+ @echo "pext: '$(pext)'"
+ @echo ""
+ @echo "Flags:"
+ @echo "CXX: $(CXX)"
+ @echo "CXXFLAGS: $(CXXFLAGS)"
+ @echo "LDFLAGS: $(LDFLAGS)"
+ @echo ""
+ @echo "Testing config sanity. If this fails, try 'make help' ..."
+ @echo ""
+ @test "$(debug)" = "yes" || test "$(debug)" = "no"
+ @test "$(optimize)" = "yes" || test "$(optimize)" = "no"
+ @test "$(arch)" = "any" || test "$(arch)" = "x86_64" || test "$(arch)" = "i386" || \
+ test "$(arch)" = "ppc64" || test "$(arch)" = "ppc" || test "$(arch)" = "armv7"
+ @test "$(os)" = "any"
+ @test "$(bits)" = "32" || test "$(bits)" = "64"
+ @test "$(prefetch)" = "yes" || test "$(prefetch)" = "no"
+ @test "$(bsfq)" = "yes" || test "$(bsfq)" = "no"
+ @test "$(popcnt)" = "yes" || test "$(popcnt)" = "no"
+ @test "$(sse)" = "yes" || test "$(sse)" = "no"
+ @test "$(pext)" = "yes" || test "$(pext)" = "no"
+ @test "$(comp)" = "gcc" || test "$(comp)" = "icc" || test "$(comp)" = "mingw" || test "$(comp)" = "clang"
$(EXE): $(OBJS)
- $(CXX) $(LDFLAGS) -o $@ $(OBJS)
-
-.depend:
- $(CXX) -MM $(OBJS:.o=.cpp) > $@
-
-include .depend
-
-
-###
-### Compiler and linker switches
-###
-
-# Enable/disable debugging:
+ $(CXX) -o $@ $(OBJS) $(LDFLAGS)
-CXXFLAGS += -DNDEBUG
+gcc-profile-prepare:
+ $(MAKE) ARCH=$(ARCH) COMP=$(COMP) gcc-profile-clean
+gcc-profile-make:
+ $(MAKE) ARCH=$(ARCH) COMP=$(COMP) \
+ EXTRACXXFLAGS='-fprofile-generate' \
+ EXTRALDFLAGS='-lgcov' \
+ all
-# Compile with full warnings, and symbol names
+gcc-profile-use:
+ $(MAKE) ARCH=$(ARCH) COMP=$(COMP) \
+ EXTRACXXFLAGS='-fprofile-use' \
+ EXTRALDFLAGS='-lgcov' \
+ all
-CXXFLAGS += -Wall -g
+gcc-profile-clean:
+ @rm -rf *.gcda *.gcno bench.txt
+icc-profile-prepare:
+ $(MAKE) ARCH=$(ARCH) COMP=$(COMP) icc-profile-clean
+ @mkdir profdir
-# General optimization flags. Note that -O2 might be faster than -O3 on some
-# systems; this requires testing.
+icc-profile-make:
+ $(MAKE) ARCH=$(ARCH) COMP=$(COMP) \
+ EXTRACXXFLAGS='-prof-gen=srcpos -prof_dir ./profdir' \
+ all
-CXXFLAGS += -O3 -fno-exceptions -fomit-frame-pointer -fno-rtti -fno-strict-aliasing
+icc-profile-use:
+ $(MAKE) ARCH=$(ARCH) COMP=$(COMP) \
+ EXTRACXXFLAGS='-prof_use -prof_dir ./profdir' \
+ all
-# Disable most annoying warnings for the Intel C++ compiler
-
-CXXFLAGS += -wd383,869,981
-
-
-# Compiler optimization flags for the Intel C++ compiler in Mac OS X:
-
-# CXXFLAGS += -mdynamic-no-pic -no-prec-div -ipo -static -xP
-
-
-# Profiler guided optimization with the Intel C++ compiler v11. To use it, first
-# create the directory ./profdata if it does not already exist, and delete its
-# contents if it does exist. Then compile with -prof_gen, and run the
-# resulting binary for a while (for instance, do ./stockfish bench 128 1, and
-# wait 15 minutes for the benchmark to complete). Then do a 'make clean', and
-# recompile with -prof_use.
-
-# CXXFLAGS += -prof-gen -prof-dir./profdata
-# CXXFLAGS += -prof-use -ipo -prof_dir./profdata
-
-
-# Profiler guided optimization with GCC. I've never been able to make this
-# work.
-
-# CXXFLAGS += -fprofile-generate
-# LDFLAGS += -fprofile-generate
-# CXXFLAGS += -fprofile-use
-# CXXFLAGS += -fprofile-use
-
-
-# General linker flags
-
-LDFLAGS += -lm -lpthread
-
-
-# Compiler switches for generating binaries for various CPUs in Mac OS X.
-# Note that 'arch ppc' and 'arch ppc64' only works with g++, and not with
-# the intel compiler.
-
-# CXXFLAGS += -arch ppc
-# CXXFLAGS += -arch ppc64
-# CXXFLAGS += -arch i386
-# CXXFLAGS += -arch x86_64
-# LDFLAGS += -arch ppc
-# LDFLAGS += -arch ppc64
-# LDFLAGS += -arch i386
-# LDFLAGS += -arch x86_64
+icc-profile-clean:
+ @rm -rf profdir bench.txt
+.depend:
+ -@$(CXX) $(DEPENDFLAGS) -MM $(OBJS:.o=.cpp) > $@ 2> /dev/null
-# Backwards compatibility with Mac OS X 10.4 when compiling under 10.5 with
-# GCC 4.0. I haven't found a way to make it work with GCC 4.2.
+-include .depend
-# CXXFLAGS += -isysroot /Developer/SDKs/MacOSX10.4u.sdk
-# CXXFLAGS += -mmacosx-version-min=10.4
-# LDFLAGS += -isysroot /Developer/SDKs/MacOSX10.4u.sdk
-# LDFLAGS += -Wl,-syslibroot /Developer/SDKs/MacOSX10.4u.sdk
-# LDFLAGS += -mmacosx-version-min=10.4
+### ==========================================================================
+### Section 6. Non-standard targets
+### ==========================================================================
-# Backwards compatibility with Mac OS X 10.4 when compiling with ICC. Doesn't
-# work yet. :-(
+hpux:
+ $(MAKE) \
+ CXX='/opt/aCC/bin/aCC -AA +hpxstd98 -mt +O3 -DNDEBUG -DNO_PREFETCH' \
+ CXXFLAGS="" \
+ LDFLAGS="" \
+ all
-# CXXFLAGS += -DMAC_OS_X_VERSION_MIN_REQUIRED=1040
-# CXXFLAGS += -DMAC_OS_X_VERSION_MAX_ALLOWED=1040
-# CXXFLAGS += -D__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__=1040
-# CXXFLAGS += -F/Developer/SDKs/MacOSX10.4u.sdk/
-# LDFLAGS += -Wl,-syslibroot -Wl,/Developer/SDKs/MacOSX10.4u.sdk