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 LIBRARY_NAME to the name of the library file to build.
  11 # The default path for the library code and object is lib.
  12 # By default the linker will look for $(BINARY_NAME) library name.
  13 # Set BUILD_TYPE to either debug or release.
  14 #
  15 # Automatic dependencies code from:
  16 # http://make.mad-scientist.net/papers/advanced-auto-dependency-generation/#tldr
  17 BINARY_NAME=exo1
  18 SRC_PATH:=src
  19 LIBRARY_NAME=libexo1
  20 LIBRARY_PATH:=lib
  21 BUILD_TYPE=debug
  22 #BUILD_TYPE=release
  23
  24 # ====================================
  25 # DO NOT CHANGE STUFF BEYOND THIS LINE
  26 # ====================================
  27
  28 all: $(BINARY_NAME) $(BINARY_NAME).dynamic $(BINARY_NAME).static
  29
  30 CC=gcc
  31 LD=gcc
  32 AR=ar
  33
  34 WARN_FLAGS = -Wall -Wextra
  35 STD_FLAG = -std=c11
  36
  37 ifeq ($(BUILD_TYPE),debug)
  38 BUILDDIR := .build/debug
  39 DEBUG_FLAG = -g
  40 STRIP_FLAG =
  41 OPTI_FLAG = -O0
  42 else
  43 BUILDDIR := .build/release
  44 DEBUG_FLAG =
  45 STRIP_FLAG = -s
  46 OPTI_FLAG = -O3
  47 endif
  48
  49 # Putting header files in the source directory is not the purpose of this INCLUDES variable
  50 INCLUDES := $(INCLUDES) -I$(SRC_PATH) -I$(LIBRARY_PATH)
  51 CFLAGS := $(CFLAGS) $(WARN_FLAGS) $(STD_FLAG) $(OPTI_FLAG) $(DEBUG_FLAG) $(INCLUDES)
  52 LIBCFLAGS := -fPIC $(CFLAGS)
  53 LDFLAGS := $(LDFLAGS) $(STRIP_FLAG)
  54 LIBLDFLAGS := -shared $(LDFLAGS)
  55 STATICLIBLDFLAGS := -static $(LDFLAGS)
  56 LDLIBS := $(LDLIBS) -L$(LIBRARY_PATH) -l$(BINARY_NAME)
  57
  58 OBJDIR := $(BUILDDIR)/objs
  59 $(shell mkdir -p $(OBJDIR))
  60
  61 SRCS=$(wildcard $(SRC_PATH)/*.c)
  62 LIBSRCS=$(wildcard $(LIBRARY_PATH)/*.c)
  63 OBJS=$(patsubst %.c,$(OBJDIR)/%.o,$(notdir $(SRCS)))
  64 LIBOBJS=$(patsubst %.c,$(OBJDIR)/%.o,$(notdir $(LIBSRCS)))
  65
  66 DEPDIR := $(BUILDDIR)/deps
  67 $(shell mkdir -p $(DEPDIR))
  68 DEPFLAGS = -MT $@ -MMD -MP -MF $(DEPDIR)/$(notdir $*).Td
  69 POSTCOMPILE = mv -f $(DEPDIR)/$(notdir $*).Td $(DEPDIR)/$(notdir $*).d
  70
  71 $(LIBRARY_PATH)/$(LIBRARY_NAME).a: $(LIBOBJS)
  72         @echo "[AR StO] $@"
  73         @$(AR) rcs $@ $^
  74
  75 $(LIBRARY_PATH)/$(LIBRARY_NAME).so: $(LIBOBJS)
  76         @echo "[LD ShO] $@"
  77         @$(LD) $(LIBCFLAGS) $(LIBLDFLAGS) $^ -o $@
  78
  79 #$(BINARY_NAME): $(OBJS) $(LIBOBJS)
  80 #       @echo "[LD ] $@"
  81 #       @$(LD) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@
  82
  83 $(BINARY_NAME): $(OBJS) $(LIBRARY_PATH)/$(LIBRARY_NAME).a
  84         @echo "[LD ] $@"
  85         @$(LD) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@
  86
  87 $(BINARY_NAME).static: $(OBJS) $(LIBRARY_PATH)/$(LIBRARY_NAME).a
  88         @echo "[LD ] $@"
  89         @$(LD) $(CFLAGS) $(STATICLIBLDFLAGS) $^ $(LDLIBS) -o $@
  90
  91 $(BINARY_NAME).dynamic: $(OBJS) $(LIBRARY_PATH)/$(LIBRARY_NAME).so
  92         @echo "[LD ] $@"
  93         @$(LD) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@
  94
  95 $(OBJDIR)/%.o: $(SRC_PATH)/%.c $(DEPDIR)/%.d
  96         @echo "[C  ] $(notdir $*)"
  97         @$(CC) $(DEPFLAGS) $(CFLAGS) -c $< -o $@
  98         @$(POSTCOMPILE)
  99
 100 include $(wildcard $(patsubst %,$(DEPDIR)/%.d,$(basename $(SRCS))))
 101
 102 $(OBJDIR)/%.o: $(LIBRARY_PATH)/%.c $(DEPDIR)/%.d
 103         @echo "[C  ] $(notdir $*)"
 104         @$(CC) $(DEPFLAGS) $(LIBCFLAGS) -c $< -o $@
 105         @$(POSTCOMPILE)
 106
 107 include $(wildcard $(patsubst %,$(DEPDIR)/%.d,$(basename $(LIBSRCS))))
 108
 109 $(DEPDIR)/%.d: ;
 110
 111 .PRECIOUS: $(DEPDIR)/%.d
 112
 113 #FIXME: add an install target
 114
 115 clean:
 116         @echo "[CLN]"
 117         -@rm -r $(BUILDDIR)
 118         -@rm $(BINARY_NAME)
 119         -@rm $(BINARY_NAME).static
 120         -@rm $(BINARY_NAME).dynamic
 121         -@rm $(LIBRARY_PATH)/$(LIBRARY_NAME).a
 122         -@rm $(LIBRARY_PATH)/$(LIBRARY_NAME).so
 123
 124 disassemble: $(BINARY_NAME)
 125         objdump -d $< | less
 126
 127 symbols: $(BINARY_NAME)
 128         objdump -t $< | sort | less