b3821cf8bf
Arena allocation make deallocation of nested structed MUCH faster, and improves the spatial locality of allocations. It makes no sense to deallocate only parts of a JSON structure so arenas are a good fit here.
64 lines
1.7 KiB
Makefile
64 lines
1.7 KiB
Makefile
all:
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BUILD ?= debug
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COMPILER ?= gcc
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# ==== set compiler flags ====
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# credits Maxim Egorushkin:
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# https://stackoverflow.com/questions/48791883/best-practice-for-building-a-make-file/48793058#48793058
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CC := gcc
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# -fsanitize={address,undefined}
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CFLAGS.gcc.debug := -Og -ggdb -DBACKTRACE -rdynamic -fanalyzer -fsanitize=address -fno-omit-frame-pointer
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CFLAGS.gcc.release := -O3 -g -march=native -DNDEBUG
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CFLAGS.gcc := ${CFLAGS.gcc.${BUILD}} -fstack-protector-all -std=gnu11 #-Wpedantic
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CFLAGS.clang.debug=-O0 -g3 -DBACKTRACE -rdynamic
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CFLAGS.clang.release=-O3 -g -march=native -DNDEBUG
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CFLAGS.clang=-Iinclude -Wno-strict-aliasing -fstack-protector-all ${CFLAGS.clang.${BUILD}}
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CFLAGS := ${CFLAGS.${COMPILER}} \
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-Iinclude -Iarena-allocator/include \
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-std=c2x \
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-Wall -Wextra -Wpedantic -Werror
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LD_PRELOAD:=
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# ==== end set compiler flags ====
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BUILD_DIR := bin/${BUILD}
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OBJ_DIR := .obj/${BUILD}
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_OBJS := main.o parse.o json_value.o util.o libarena.a
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OBJS := $(patsubst %,$(OBJ_DIR)/%,$(_OBJS))
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all : $(BUILD_DIR)/parse
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$(BUILD_DIR)/parse : $(OBJS) $(OBJ_DIR)/libarena.a | $(BUILD_DIR) Makefile
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$(CC) $(CFLAGS) $^ $(LDFLAGS) $(LDLIBS) -o $@
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$(OBJ_DIR)/main.o : src/main.c arena-allocator | $(OBJ_DIR) Makefile
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$(CC) $(CFLAGS) $(LDFLAGS) $(LDLIBS) -c $< -o $@
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$(OBJ_DIR)/libarena.a : arena-allocator .gitmodules $(wildcard .git/modules/arena-allocator/HEAD) | $(OBJ_DIR) Makefile
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(cd arena-allocator && make static)
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cp --force arena-allocator/lib/libarena.a $(OBJ_DIR)/libarena.a
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arena-allocator : .gitmodules
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git submodule update $@
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$(OBJ_DIR)/%.o : src/%.c include/%.h | $(OBJ_DIR) Makefile
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$(CC) $(CFLAGS) $(LDFLAGS) $(LDLIBS) -c $< -o $@
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$(BUILD_DIR) :
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mkdir -p $@
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$(OBJ_DIR) :
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mkdir -p $@
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clean :
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rm -rfi $(OBJ_DIR) $(BUILD_DIR)
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.PHONY : clean all
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