87 lines
2.9 KiB
Makefile

.PHONY: linux macos windows linux-lib macos-lib windows-lib build clean
# ---- Arguments ----
ifndef PROJECT
$(error PROJECT is not set. Usage: make PROJECT=<name>. E.g.: make PROJECT=pol linux)
endif
# ---- Common ----
CXX := g++
CXXFLAGS_COMMON := -std=c++11 -O3 -I. -Wno-address-of-packed-member -Dmain=circom_main
COMMON_SRCS := main.cpp calcwit.cpp fr.cpp $(PROJECT).cpp
COMMON_OBJS := $(COMMON_SRCS:.cpp=.o)
LIB_ONLY_SRCS := $(PROJECT)/ffi.cpp circom_adapter.cpp
LIB_ONLY_OBJS := $(LIB_ONLY_SRCS:.cpp=.o)
LIB_SRCS := $(COMMON_SRCS) $(LIB_ONLY_SRCS)
LIB_OBJS := $(COMMON_OBJS) $(LIB_ONLY_OBJS)
DEPS_HPP := circom.hpp calcwit.hpp fr.hpp types.hpp $(PROJECT)/ffi.hpp
BIN := $(PROJECT)
ifeq ($(OS),windows)
LIB_EXT := .lib
LIB_PREFIX :=
else
LIB_EXT := .a
LIB_PREFIX := lib
endif
LIB := $(LIB_PREFIX)$(PROJECT)$(LIB_EXT)
# ---- Linux (x86_64 and aarch64) ----
linux: CXXFLAGS=$(CXXFLAGS_COMMON)
linux: LDFLAGS=-static
linux: LDLIBS=-lgmp
linux: $(BIN)
linux-lib: CXXFLAGS=$(CXXFLAGS_COMMON) -fPIC
linux-lib: $(LIB)
# ---- macOS ----
macos: CXXFLAGS=$(CXXFLAGS_COMMON) -I/opt/homebrew/include -include gmp_patch.hpp
macos: LDFLAGS=-Wl,-search_paths_first -Wl,-dead_strip
macos: LDLIBS=/opt/homebrew/lib/libgmp.a
macos: $(BIN)
macos-lib: CXXFLAGS=$(CXXFLAGS_COMMON) -fPIC -I/opt/homebrew/include -include gmp_patch.hpp
macos-lib: $(LIB)
# ---- Windows (MinGW) ----
windows: CXXFLAGS=$(CXXFLAGS_COMMON) -I/include -Duint="unsigned int"
windows: LDFLAGS=-static
windows: LDLIBS=-L/lib -lgmp -lmman
windows: $(BIN)
windows-lib: CXXFLAGS=$(CXXFLAGS_COMMON) -fPIC -I/include -Duint="unsigned int"
windows-lib: $(LIB)
# Localizes all circuit-specific code to prevent conflicts when multiple circuit
# libraries are linked into the same binary. See CONTRIBUTING.md § "Symbol Isolation".
# On Linux/ELF: llvm-objcopy is required — it clears GRP_COMDAT when localizing
# COMDAT signature symbols, preventing "relocation refers to symbol in discarded
# section" errors that GNU objcopy causes. On Windows/COFF: GNU objcopy suffices
# because COFF COMDAT is per-section (not group-based) and is already deduplicated
# automatically by the linker — the ELF GRP_COMDAT problem does not apply.
PUBLIC_SYMS := $(PROJECT)_generate_witness $(PROJECT)_generate_witness_from_files
LOCAL_OBJ := $(PROJECT)_local.o
OBJCOPY := $(if $(filter windows,$(OS)),objcopy,llvm-objcopy)
UNAME := $(shell uname -s)
# ---- Rules ----
$(BIN): $(COMMON_OBJS)
$(CXX) $(LDFLAGS) $^ $(LDLIBS) -o $@
$(LIB): $(LIB_OBJS)
ifeq ($(UNAME),Darwin)
ar rcs $@ $^ # macOS: two-level namespace, conflicts don't arise
else
ld -r -o $(LOCAL_OBJ) $(filter-out fr.o,$^)
$(OBJCOPY) $(foreach s,$(PUBLIC_SYMS),--keep-global-symbol=$(s)) $(LOCAL_OBJ)
ar rcs $@ fr.o $(LOCAL_OBJ)
rm $(LOCAL_OBJ)
endif
%.o: %.cpp $(DEPS_HPP)
$(CXX) $(CXXFLAGS) -c $< -o $@
clean:
rm -f $(COMMON_OBJS) $(LIB_ONLY_OBJS) $(BIN) $(LIB) $(LOCAL_OBJ)