TP_13/exo1/Makefile

   1 # Sample Makefile to build simple project.
   2 #
   3 # This Makefile expect all source files (.c) to be at the same level, in the
   4 # current working directory.
   5 #
   6 # It will automatically generate dependencies, compile all files, and produce a
   7 # binary using the provided name.
   8 #
   9 # Set BINARY_NAME to the name of the binary file to build.
  10 # Set BUILD_TYPE to either debug or release
  11 #
  12 # Automatic dependencies code from:
  13 # http://make.mad-scientist.net/papers/advanced-auto-dependency-generation/#tldr
  14 BINARY_NAME=exo1
  15 SRC_PATH:=src
  16 LIBRARY_NAME=libexo1
  17 LIBRARY_PATH:=lib
  18 BUILD_TYPE=debug
  19 #BUILD_TYPE=release
  20
  21 # ====================================
  22 # DO NOT CHANGE STUFF BEYOND THIS LINE
  23 # ====================================
  24
  25 all: $(BINARY_NAME) $(BINARY_NAME).dynamic $(BINARY_NAME).static
  26
  27 CC=gcc
  28 LD=gcc
  29 AR=ar
  30
  31 WARN_FLAGS = -Wall -Wextra
  32 STD_FLAG = -std=c11
  33
  34 ifeq ($(BUILD_TYPE),debug)
  35 BUILDDIR := .build/debug
  36 DEBUG_FLAG = -g
  37 STRIP_FLAG =
  38 OPTI_FLAG = -O0
  39 else
  40 BUILDDIR := .build/release
  41 DEBUG_FLAG =
  42 STRIP_FLAG = -s
  43 OPTI_FLAG = -O3
  44 endif
  45
  46 # Puting header files in the source directory is not the purpose of this INCLUDES variable
  47 INCLUDES := $(INCLUDES) -I$(SRC_PATH) -I$(LIBRARY_PATH)
  48 CFLAGS := $(CFLAGS) $(WARN_FLAGS) $(STD_FLAG) $(OPTI_FLAG) $(DEBUG_FLAG) $(INCLUDES)
  49 LIBCFLAGS := -fPIC $(CFLAGS)
  50 LDFLAGS := $(LDFLAGS) $(STRIP_FLAG)
  51 LIBLDFLAGS := -shared $(LDFLAGS)
  52 STATICLIBLDFLAGS := -static $(LDFLAGS)
  53 LDLIBS := $(LDLIBS) -L$(LIBRARY_PATH) -l$(BINARY_NAME)
  54
  55 OBJDIR := $(BUILDDIR)/objs
  56 $(shell mkdir -p $(OBJDIR))
  57
  58 SRCS=$(wildcard $(SRC_PATH)/*.c)
  59 LIBSRCS=$(wildcard $(LIBRARY_PATH)/*.c)
  60 OBJS=$(patsubst %.c,$(OBJDIR)/%.o,$(notdir $(SRCS)))
  61 LIBOBJS=$(patsubst %.c,$(OBJDIR)/%.o,$(notdir $(LIBSRCS)))
  62
  63 DEPDIR := $(BUILDDIR)/deps
  64 $(shell mkdir -p $(DEPDIR))
  65 DEPFLAGS = -MT $@ -MMD -MP -MF $(DEPDIR)/$(notdir $*).Td
  66 POSTCOMPILE = mv -f $(DEPDIR)/$(notdir $*).Td $(DEPDIR)/$(notdir $*).d
  67
  68 $(LIBRARY_PATH)/$(LIBRARY_NAME).a: $(LIBOBJS)
  69         @echo "[AR StO] $@"
  70         @$(AR) rcs $@ $^
  71
  72 $(LIBRARY_PATH)/$(LIBRARY_NAME).so: $(LIBOBJS)
  73         @echo "[LD ShO] $@"
  74         @$(LD) $(LIBCFLAGS) $(LIBLDFLAGS) $^ -o $@
  75
  76 #$(BINARY_NAME): $(OBJS) $(LIBOBJS)
  77 #       @echo "[LD ] $@"
  78 #       @$(LD) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@
  79
  80 $(BINARY_NAME): $(OBJS) $(LIBRARY_PATH)/$(LIBRARY_NAME).a
  81         @echo "[LD ] $@"
  82         @$(LD) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@
  83
  84 $(BINARY_NAME).static: $(OBJS) $(LIBRARY_PATH)/$(LIBRARY_NAME).a
  85         @echo "[LD ] $@"
  86         @$(LD) $(CFLAGS) $(STATICLIBLDFLAGS) $^ $(LDLIBS) -o $@
  87
  88 $(BINARY_NAME).dynamic: $(OBJS) $(LIBRARY_PATH)/$(LIBRARY_NAME).so
  89         @echo "[LD ] $@"
  90         @$(LD) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@
  91
  92 $(OBJDIR)/%.o: $(SRC_PATH)/%.c $(DEPDIR)/%.d
  93         @echo "[C  ] $(notdir $*)"
  94         @$(CC) $(DEPFLAGS) $(CFLAGS) -c $< -o $@
  95         @$(POSTCOMPILE)
  96
  97 include $(wildcard $(patsubst %,$(DEPDIR)/%.d,$(basename $(SRCS))))
  98
  99 $(OBJDIR)/%.o: $(LIBRARY_PATH)/%.c $(DEPDIR)/%.d
 100         @echo "[C  ] $(notdir $*)"
 101         @$(CC) $(DEPFLAGS) $(LIBCFLAGS) -c $< -o $@
 102         @$(POSTCOMPILE)
 103
 104 include $(wildcard $(patsubst %,$(DEPDIR)/%.d,$(basename $(LIBSRCS))))
 105
 106 $(DEPDIR)/%.d: ;
 107
 108 .PRECIOUS: $(DEPDIR)/%.d
 109
 110 #FIXME: add an install target
 111
 112 clean:
 113         @echo "[CLN]"
 114         -@rm -r $(BUILDDIR)
 115         -@rm $(BINARY_NAME)
 116         -@rm $(BINARY_NAME).static
 117         -@rm $(BINARY_NAME).dynamic
 118         -@rm $(LIBRARY_PATH)/$(LIBRARY_NAME).a
 119         -@rm $(LIBRARY_PATH)/$(LIBRARY_NAME).so
 120
 121 disassemble: $(BINARY_NAME)
 122         objdump -d $< | less
 123
 124 symbols: $(BINARY_NAME)
 125         objdump -t $< | sort | less