# Stockfish, a UCI chess playing engine derived from Glaurung 2.1
-# Copyright (C) 2004-2022 The Stockfish developers (see AUTHORS file)
+# Copyright (C) 2004-2023 The Stockfish developers (see AUTHORS file)
#
# Stockfish is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
### Section 2. High-level Configuration
### ==========================================================================
#
-# flag --- Comp switch --- Description
+# flag --- Comp switch --- Description
# ----------------------------------------------------------------------------
#
-# debug = yes/no --- -DNDEBUG --- Enable/Disable debug mode
+# debug = yes/no --- -DNDEBUG --- Enable/Disable debug mode
# sanitize = none/<sanitizer> ... (-fsanitize )
-# --- ( undefined ) --- enable undefined behavior checks
-# --- ( thread ) --- enable threading error checks
-# --- ( address ) --- enable memory access checks
-# --- ...etc... --- see compiler documentation for supported sanitizers
-# optimize = yes/no --- (-O3/-fast etc.) --- Enable/Disable optimizations
-# arch = (name) --- (-arch) --- Target architecture
-# bits = 64/32 --- -DIS_64BIT --- 64-/32-bit operating system
-# prefetch = yes/no --- -DUSE_PREFETCH --- Use prefetch asm-instruction
-# popcnt = yes/no --- -DUSE_POPCNT --- Use popcnt asm-instruction
-# pext = yes/no --- -DUSE_PEXT --- Use pext x86_64 asm-instruction
-# sse = yes/no --- -msse --- Use Intel Streaming SIMD Extensions
-# mmx = yes/no --- -mmmx --- Use Intel MMX instructions
-# sse2 = yes/no --- -msse2 --- Use Intel Streaming SIMD Extensions 2
-# ssse3 = yes/no --- -mssse3 --- Use Intel Supplemental Streaming SIMD Extensions 3
-# sse41 = yes/no --- -msse4.1 --- Use Intel Streaming SIMD Extensions 4.1
-# avx2 = yes/no --- -mavx2 --- Use Intel Advanced Vector Extensions 2
-# avxvnni = yes/no --- -mavxvnni --- Use Intel Vector Neural Network Instructions AVX
-# avx512 = yes/no --- -mavx512bw --- Use Intel Advanced Vector Extensions 512
-# vnni256 = yes/no --- -mavx512vnni --- Use Intel Vector Neural Network Instructions 256
-# vnni512 = yes/no --- -mavx512vnni --- Use Intel Vector Neural Network Instructions 512
-# neon = yes/no --- -DUSE_NEON --- Use ARM SIMD architecture
+# --- ( undefined ) --- enable undefined behavior checks
+# --- ( thread ) --- enable threading error checks
+# --- ( address ) --- enable memory access checks
+# --- ...etc... --- see compiler documentation for supported sanitizers
+# optimize = yes/no --- (-O3/-fast etc.) --- Enable/Disable optimizations
+# arch = (name) --- (-arch) --- Target architecture
+# bits = 64/32 --- -DIS_64BIT --- 64-/32-bit operating system
+# prefetch = yes/no --- -DUSE_PREFETCH --- Use prefetch asm-instruction
+# popcnt = yes/no --- -DUSE_POPCNT --- Use popcnt asm-instruction
+# pext = yes/no --- -DUSE_PEXT --- Use pext x86_64 asm-instruction
+# sse = yes/no --- -msse --- Use Intel Streaming SIMD Extensions
+# mmx = yes/no --- -mmmx --- Use Intel MMX instructions
+# sse2 = yes/no --- -msse2 --- Use Intel Streaming SIMD Extensions 2
+# ssse3 = yes/no --- -mssse3 --- Use Intel Supplemental Streaming SIMD Extensions 3
+# sse41 = yes/no --- -msse4.1 --- Use Intel Streaming SIMD Extensions 4.1
+# avx2 = yes/no --- -mavx2 --- Use Intel Advanced Vector Extensions 2
+# avxvnni = yes/no --- -mavxvnni --- Use Intel Vector Neural Network Instructions AVX
+# avx512 = yes/no --- -mavx512bw --- Use Intel Advanced Vector Extensions 512
+# vnni256 = yes/no --- -mavx256vnni --- Use Intel Vector Neural Network Instructions 512 with 256bit operands
+# vnni512 = yes/no --- -mavx512vnni --- Use Intel Vector Neural Network Instructions 512
+# neon = yes/no --- -DUSE_NEON --- Use ARM SIMD architecture
+# dotprod = yes/no --- -DUSE_NEON_DOTPROD --- Use ARM advanced SIMD Int8 dot product instructions
#
# 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
x86-64-vnni512 x86-64-vnni256 x86-64-avx512 x86-64-avxvnni x86-64-bmi2 \
x86-64-avx2 x86-64-sse41-popcnt x86-64-modern x86-64-ssse3 x86-64-sse3-popcnt \
x86-64 x86-32-sse41-popcnt x86-32-sse2 x86-32 ppc-64 ppc-32 e2k \
- armv7 armv7-neon armv8 apple-silicon general-64 general-32))
+ armv7 armv7-neon armv8 armv8-dotprod apple-silicon general-64 general-32 riscv64))
SUPPORTED_ARCH=true
else
SUPPORTED_ARCH=false
vnni256 = no
vnni512 = no
neon = no
+dotprod = no
arm_version = 0
STRIP = strip
arm_version = 8
endif
+ifeq ($(ARCH),armv8-dotprod)
+ arch = armv8
+ prefetch = yes
+ popcnt = yes
+ neon = yes
+ dotprod = yes
+ arm_version = 8
+endif
+
ifeq ($(ARCH),apple-silicon)
arch = arm64
prefetch = yes
popcnt = yes
neon = yes
+ dotprod = yes
arm_version = 8
endif
popcnt = yes
endif
+ifeq ($(ARCH),riscv64)
+ arch = riscv64
+endif
endif
+
### ==========================================================================
### Section 3. Low-level Configuration
### ==========================================================================
### 3.1 Selecting compiler (default = gcc)
-CXXFLAGS += -Wall -Wcast-qual -fno-exceptions -std=c++17 $(EXTRACXXFLAGS)
-DEPENDFLAGS += -std=c++17
-LDFLAGS += $(EXTRALDFLAGS)
+ifeq ($(MAKELEVEL),0)
+ export ENV_CXXFLAGS := $(CXXFLAGS)
+ export ENV_DEPENDFLAGS := $(DEPENDFLAGS)
+ export ENV_LDFLAGS := $(LDFLAGS)
+endif
+
+CXXFLAGS = $(ENV_CXXFLAGS) -Wall -Wcast-qual -fno-exceptions -std=c++17 $(EXTRACXXFLAGS)
+DEPENDFLAGS = $(ENV_DEPENDFLAGS) -std=c++17
+LDFLAGS = $(ENV_LDFLAGS) $(EXTRALDFLAGS)
ifeq ($(COMP),)
COMP=gcc
ifeq ($(COMP),gcc)
comp=gcc
CXX=g++
- CXXFLAGS += -pedantic -Wextra -Wshadow
+ CXXFLAGS += -pedantic -Wextra -Wshadow -Wmissing-declarations
- ifeq ($(arch),$(filter $(arch),armv7 armv8))
+ ifeq ($(arch),$(filter $(arch),armv7 armv8 riscv64))
ifeq ($(OS),Android)
CXXFLAGS += -m$(bits)
LDFLAGS += -m$(bits)
endif
+ ifeq ($(ARCH),riscv64)
+ CXXFLAGS += -latomic
+ endif
else
CXXFLAGS += -m$(bits)
LDFLAGS += -m$(bits)
CXX=i686-w64-mingw32-c++-posix
endif
endif
- CXXFLAGS += -pedantic -Wextra -Wshadow
+ CXXFLAGS += -pedantic -Wextra -Wshadow -Wmissing-declarations
endif
ifeq ($(COMP),icc)
CXX=x86_64-w64-mingw32-clang++
endif
- CXXFLAGS += -pedantic -Wextra -Wshadow
+ CXXFLAGS += -pedantic -Wextra -Wshadow -Wmissing-prototypes \
+ -Wconditional-uninitialized
ifeq ($(filter $(KERNEL),Darwin OpenBSD FreeBSD),)
ifeq ($(target_windows),)
endif
endif
- ifeq ($(arch),$(filter $(arch),armv7 armv8))
+ ifeq ($(arch),$(filter $(arch),armv7 armv8 riscv64))
ifeq ($(OS),Android)
CXXFLAGS += -m$(bits)
LDFLAGS += -m$(bits)
endif
+ ifeq ($(ARCH),riscv64)
+ CXXFLAGS += -latomic
+ endif
else
CXXFLAGS += -m$(bits)
LDFLAGS += -m$(bits)
### Sometimes gcc is really clang
ifeq ($(COMP),gcc)
- gccversion = $(shell $(CXX) --version)
+ gccversion = $(shell $(CXX) --version 2>/dev/null)
gccisclang = $(findstring clang,$(gccversion))
ifneq ($(gccisclang),)
profile_make = clang-profile-make
endif
endif
- ifeq ($(KERNEL),Darwin)
- ifeq ($(comp),$(filter $(comp),clang icc))
- CXXFLAGS += -mdynamic-no-pic
- endif
+ ifeq ($(KERNEL),Darwin)
+ ifeq ($(comp),$(filter $(comp),clang icc))
+ CXXFLAGS += -mdynamic-no-pic
+ endif
- ifeq ($(comp),gcc)
- ifneq ($(arch),arm64)
- CXXFLAGS += -mdynamic-no-pic
- endif
- endif
- endif
+ ifeq ($(comp),gcc)
+ ifneq ($(arch),arm64)
+ CXXFLAGS += -mdynamic-no-pic
+ endif
+ endif
+ endif
ifeq ($(comp),clang)
- CXXFLAGS += -fexperimental-new-pass-manager
+ clangmajorversion = $(shell $(CXX) -dumpversion 2>/dev/null | cut -f1 -d.)
+ ifeq ($(shell expr $(clangmajorversion) \< 16),1)
+ CXXFLAGS += -fexperimental-new-pass-manager
+ endif
endif
endif
ifeq ($(avx2),yes)
CXXFLAGS += -DUSE_AVX2
ifeq ($(comp),$(filter $(comp),gcc clang mingw))
- CXXFLAGS += -mavx2
+ CXXFLAGS += -mavx2 -mbmi
endif
endif
endif
endif
+ifeq ($(dotprod),yes)
+ CXXFLAGS += -march=armv8.2-a+dotprod -DUSE_NEON_DOTPROD
+endif
+
### 3.7 pext
ifeq ($(pext),yes)
CXXFLAGS += -DUSE_PEXT
endif
endif
+### 3.7.1 Try to include git commit sha for versioning
+GIT_SHA = $(shell git rev-parse --short HEAD 2>/dev/null)
+ifneq ($(GIT_SHA), )
+ CXXFLAGS += -DGIT_SHA=$(GIT_SHA)
+endif
+
+### 3.7.2 Try to include git commit date for versioning
+GIT_DATE = $(shell git show -s --date=format:'%Y%m%d' --format=%cd HEAD 2>/dev/null)
+ifneq ($(GIT_DATE), )
+ CXXFLAGS += -DGIT_DATE=$(GIT_DATE)
+endif
+
### 3.8 Link Time Optimization
### This is a mix of compile and link time options because the lto link phase
### needs access to the optimization flags.
ifeq ($(optimize),yes)
ifeq ($(debug), no)
ifeq ($(comp),clang)
- CXXFLAGS += -flto
+ CXXFLAGS += -flto=full
ifeq ($(target_windows),yes)
CXXFLAGS += -fuse-ld=lld
endif
# GCC on some systems.
else ifeq ($(comp),gcc)
ifeq ($(gccisclang),)
- CXXFLAGS += -flto
+ CXXFLAGS += -flto -flto-partition=one
LDFLAGS += $(CXXFLAGS) -flto=jobserver
else
- CXXFLAGS += -flto
+ CXXFLAGS += -flto=full
LDFLAGS += $(CXXFLAGS)
endif
# To use LTO and static linking on Windows,
# the tool chain requires gcc version 10.1 or later.
else ifeq ($(comp),mingw)
- ifneq ($(arch),i386)
- CXXFLAGS += -flto
+ CXXFLAGS += -flto -flto-partition=one
LDFLAGS += $(CXXFLAGS) -save-temps
endif
- endif
endif
endif
@echo "Supported targets:"
@echo ""
@echo "help > Display architecture details"
- @echo "build > Standard build"
+ @echo "profile-build > standard build with profile-guided optimization"
+ @echo "build > skip profile-guided optimization"
@echo "net > Download the default nnue net"
- @echo "profile-build > Faster build (with profile-guided optimization)"
@echo "strip > Strip executable"
@echo "install > Install executable"
@echo "clean > Clean up"
@echo ""
@echo "Supported archs:"
@echo ""
- @echo "x86-64-vnni512 > x86 64-bit with vnni support 512bit wide"
- @echo "x86-64-vnni256 > x86 64-bit with vnni support 256bit wide"
+ @echo "x86-64-vnni512 > x86 64-bit with vnni 512bit support"
+ @echo "x86-64-vnni256 > x86 64-bit with vnni 512bit support, limit operands to 256bit wide"
@echo "x86-64-avx512 > x86 64-bit with avx512 support"
- @echo "x86-64-avxvnni > x86 64-bit with avxvnni support"
+ @echo "x86-64-avxvnni > x86 64-bit with vnni 256bit support"
@echo "x86-64-bmi2 > x86 64-bit with bmi2 support"
@echo "x86-64-avx2 > x86 64-bit with avx2 support"
@echo "x86-64-sse41-popcnt > x86 64-bit with sse41 and popcnt support"
@echo "armv7 > ARMv7 32-bit"
@echo "armv7-neon > ARMv7 32-bit with popcnt and neon"
@echo "armv8 > ARMv8 64-bit with popcnt and neon"
+ @echo "armv8-dotprod > ARMv8 64-bit with popcnt, neon and dot product support"
@echo "e2k > Elbrus 2000"
@echo "apple-silicon > Apple silicon ARM64"
@echo "general-64 > unspecified 64-bit"
@echo "general-32 > unspecified 32-bit"
+ @echo "riscv64 > RISC-V 64-bit"
@echo ""
@echo "Supported compilers:"
@echo ""
@echo "icc > Intel compiler"
@echo "ndk > Google NDK to cross-compile for Android"
@echo ""
- @echo "Simple examples. If you don't know what to do, you likely want to run: "
+ @echo "Simple examples. If you don't know what to do, you likely want to run one of: "
@echo ""
- @echo "make -j build ARCH=x86-64 (A portable, slow compile for 64-bit systems)"
- @echo "make -j build ARCH=x86-32 (A portable, slow compile for 32-bit systems)"
+ @echo "make -j profile-build ARCH=x86-64-avx2 # typically a fast compile for common systems "
+ @echo "make -j profile-build ARCH=x86-64-modern # A more portable compile for 64-bit systems "
+ @echo "make -j profile-build ARCH=x86-64 # A portable compile for 64-bit systems "
@echo ""
- @echo "Advanced examples, for experienced users looking for performance: "
+ @echo "Advanced examples, for experienced users: "
@echo ""
- @echo "make help ARCH=x86-64-bmi2"
+ @echo "make -j profile-build ARCH=x86-64-bmi2"
@echo "make -j profile-build ARCH=x86-64-bmi2 COMP=gcc COMPCXX=g++-9.0"
@echo "make -j build ARCH=x86-64-ssse3 COMP=clang"
@echo ""
.PHONY: help build profile-build strip install clean net objclean profileclean \
config-sanity icc-profile-use icc-profile-make gcc-profile-use gcc-profile-make \
- clang-profile-use clang-profile-make
+ clang-profile-use clang-profile-make FORCE
build: net config-sanity
$(MAKE) ARCH=$(ARCH) COMP=$(COMP) all
net:
$(eval nnuenet := $(shell grep EvalFileDefaultName evaluate.h | grep define | sed 's/.*\(nn-[a-z0-9]\{12\}.nnue\).*/\1/'))
@echo "Default net: $(nnuenet)"
- $(eval nnuedownloadurl := https://tests.stockfishchess.org/api/nn/$(nnuenet))
+ $(eval nnuedownloadurl1 := https://tests.stockfishchess.org/api/nn/$(nnuenet))
+ $(eval nnuedownloadurl2 := https://github.com/official-stockfish/networks/raw/master/$(nnuenet))
$(eval curl_or_wget := $(shell if hash curl 2>/dev/null; then echo "curl -skL"; elif hash wget 2>/dev/null; then echo "wget -qO-"; fi))
- @if test -f "$(nnuenet)"; then \
- echo "Already available."; \
- else \
- if [ "x$(curl_or_wget)" = "x" ]; then \
- echo "Automatic download failed: neither curl nor wget is installed. Install one of these tools or download the net manually"; exit 1; \
- else \
- echo "Downloading $(nnuedownloadurl)"; $(curl_or_wget) $(nnuedownloadurl) > $(nnuenet);\
- fi; \
- fi;
+ @if [ "x$(curl_or_wget)" = "x" ]; then \
+ echo "Neither curl nor wget is installed. Install one of these tools unless the net has been downloaded manually"; \
+ fi
$(eval shasum_command := $(shell if hash shasum 2>/dev/null; then echo "shasum -a 256 "; elif hash sha256sum 2>/dev/null; then echo "sha256sum "; fi))
- @if [ "x$(shasum_command)" != "x" ]; then \
- if [ "$(nnuenet)" != "nn-"`$(shasum_command) $(nnuenet) | cut -c1-12`".nnue" ]; then \
- echo "Failed download or $(nnuenet) corrupted, please delete!"; exit 1; \
- fi \
- else \
+ @if [ "x$(shasum_command)" = "x" ]; then \
echo "shasum / sha256sum not found, skipping net validation"; \
fi
+ @for nnuedownloadurl in "$(nnuedownloadurl1)" "$(nnuedownloadurl2)"; do \
+ if test -f "$(nnuenet)"; then \
+ echo "$(nnuenet) available."; \
+ else \
+ if [ "x$(curl_or_wget)" != "x" ]; then \
+ echo "Downloading $${nnuedownloadurl}"; $(curl_or_wget) $${nnuedownloadurl} > $(nnuenet);\
+ else \
+ echo "No net found and download not possible"; exit 1;\
+ fi; \
+ fi; \
+ if [ "x$(shasum_command)" != "x" ]; then \
+ if [ "$(nnuenet)" != "nn-"`$(shasum_command) $(nnuenet) | cut -c1-12`".nnue" ]; then \
+ echo "Removing failed download"; rm -f $(nnuenet); \
+ else \
+ echo "Network validated"; break; \
+ fi; \
+ fi; \
+ done
+ @if ! test -f "$(nnuenet)"; then \
+ echo "Failed to download $(nnuenet)."; \
+ fi
# clean binaries and objects
objclean:
@test "$(SUPPORTED_ARCH)" = "true"
@test "$(arch)" = "any" || test "$(arch)" = "x86_64" || test "$(arch)" = "i386" || \
test "$(arch)" = "ppc64" || test "$(arch)" = "ppc" || test "$(arch)" = "e2k" || \
- test "$(arch)" = "armv7" || test "$(arch)" = "armv8" || test "$(arch)" = "arm64"
+ test "$(arch)" = "armv7" || test "$(arch)" = "armv8" || test "$(arch)" = "arm64" || test "$(arch)" = "riscv64"
@test "$(bits)" = "32" || test "$(bits)" = "64"
@test "$(prefetch)" = "yes" || test "$(prefetch)" = "no"
@test "$(popcnt)" = "yes" || test "$(popcnt)" = "no"
$(EXE): $(OBJS)
+$(CXX) -o $@ $(OBJS) $(LDFLAGS)
+# Force recompilation to ensure version info is up-to-date
+misc.o: FORCE
+FORCE:
+
clang-profile-make:
$(MAKE) ARCH=$(ARCH) COMP=$(COMP) \
EXTRACXXFLAGS='-fprofile-instr-generate ' \
.depend: $(SRCS)
-@$(CXX) $(DEPENDFLAGS) -MM $(SRCS) > $@ 2> /dev/null
+ifeq (, $(filter $(MAKECMDGOALS), help strip install clean net objclean profileclean config-sanity))
-include .depend
+endif
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