TP_13/exo2/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 # $(SRC_PATH) directory.
   5 #
   6 # This Makefile expect all embedded library source files (.c) to be at the same level, in the
   7 # $(LIBRARY_PATH) directory.
   8 #
   9 # It will automatically generate dependencies, compile all files, and produce a
  10 # binary using the provided name linked against the library if necessary.
  11 #
  12 # Set BINARY_NAME to the name of the binary file to build.
  13 # Set LIBRARY_NAME to the name of the library file to build.
  14 # The default path for the library code and object is lib.
  15 # By default the linker will look for $(BINARY_NAME) library name.
  16 # Set BUILD_TYPE to either debug or release.
  17 #
  18 # Automatic dependencies code from:
  19 # http://make.mad-scientist.net/papers/advanced-auto-dependency-generation/#tldr
  20 BINARY_NAME=exo2
  21 SRC_PATH:=src
  22 LIBRARY_NAME=libexo2
  23 LIBRARY_PATH:=lib
  24 LDLIBS=-lncurses -ltinfo
  25 BUILD_TYPE=debug
  26 #BUILD_TYPE=release
  27
  28 # ====================================
  29 # DO NOT CHANGE STUFF BEYOND THIS LINE
  30 # ====================================
  31
  32 all: $(BINARY_NAME) $(BINARY_NAME).dynamic $(BINARY_NAME).static
  33
  34 CC=gcc
  35 LD=gcc
  36 AR=ar
  37
  38 WARN_FLAGS = -Wall -Wextra
  39 STD_FLAG = -std=c11
  40 UNAME := $(shell uname -o)
  41
  42 ifeq ($(BUILD_TYPE),debug)
  43 BUILDDIR := .build/debug
  44 DEBUG_FLAG = -g
  45 STRIP_FLAG =
  46 OPTI_FLAG = -O0
  47 LTO_SUPPORT = yes
  48 GOLD_SUPPORT = yes
  49 else
  50 BUILDDIR := .build/release
  51 DEBUG_FLAG =
  52 STRIP_FLAG = -s
  53 OPTI_FLAG = -O3
  54 LTO_SUPPORT = yes
  55 GOLD_SUPPORT = yes
  56 endif
  57
  58 ifeq ($(UNAME),Cygwin)
  59 GOLD_SUPPORT = no
  60 endif
  61
  62 ifeq ($(LTO_SUPPORT),yes)
  63 CFLAGS_LTO = -flto -ffat-lto-objects
  64 LDFLAGS_LTO = -fuse-linker-plugin -flto
  65 endif
  66
  67 ifeq ($(GOLD_SUPPORT),yes)
  68 LDFLAGS_GOLD = -fuse-ld=gold
  69 endif
  70
  71 # Putting header files in the source directory is not the purpose of this INCLUDES variable
  72 INCLUDES := $(INCLUDES) -I$(LIBRARY_PATH)
  73 CFLAGS := $(CFLAGS) $(CFLAGS_LTO) $(WARN_FLAGS) $(STD_FLAG) $(OPTI_FLAG) $(DEBUG_FLAG) $(INCLUDES)
  74 LIBCFLAGS := -fPIC $(CFLAGS)
  75 LDFLAGS := $(LDFLAGS) $(LDFLAGS_LTO) $(LDFLAGS_GOLD) $(STRIP_FLAG)
  76 LIBLDFLAGS := -shared $(LDFLAGS)
  77 STATICLIBLDFLAGS := -static $(LDFLAGS)
  78 LDLIBS := $(LDLIBS) -L$(LIBRARY_PATH) -l$(BINARY_NAME)
  79
  80 OBJDIR := $(BUILDDIR)/objs
  81 $(shell mkdir -p $(OBJDIR))
  82
  83 SRCS=$(wildcard $(SRC_PATH)/*.c)
  84 LIBSRCS=$(wildcard $(LIBRARY_PATH)/*.c)
  85 OBJS=$(patsubst %.c,$(OBJDIR)/%.o,$(notdir $(SRCS)))
  86 LIBOBJS=$(patsubst %.c,$(OBJDIR)/%.o,$(notdir $(LIBSRCS)))
  87
  88 DEPDIR := $(BUILDDIR)/deps
  89 $(shell mkdir -p $(DEPDIR))
  90 DEPFLAGS = -MT $@ -MMD -MP -MF $(DEPDIR)/$(notdir $*).Td
  91 POSTCOMPILE = mv -f $(DEPDIR)/$(notdir $*).Td $(DEPDIR)/$(notdir $*).d
  92
  93 $(LIBRARY_PATH)/$(LIBRARY_NAME).a: $(LIBOBJS)
  94         @echo "[AR StO] $@"
  95         @$(AR) rcs $@ $^
  96
  97 $(LIBRARY_PATH)/$(LIBRARY_NAME).so: $(LIBOBJS)
  98         @echo "[LD ShO] $@"
  99         @$(LD) $(LIBCFLAGS) $(LIBLDFLAGS) $^ -o $@
 100
 101 #$(BINARY_NAME): $(OBJS) $(LIBOBJS)
 102 #       @echo "[LD ] $@"
 103 #       @$(LD) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@
 104
 105 $(BINARY_NAME): $(OBJS) $(LIBRARY_PATH)/$(LIBRARY_NAME).a
 106         @echo "[LD ] $@"
 107         @$(LD) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@
 108
 109 $(BINARY_NAME).static: $(OBJS) $(LIBRARY_PATH)/$(LIBRARY_NAME).a
 110         @echo "[LD ] $@"
 111         @$(LD) $(CFLAGS) $(STATICLIBLDFLAGS) $^ $(LDLIBS) -o $@
 112
 113 $(BINARY_NAME).dynamic: $(OBJS) $(LIBRARY_PATH)/$(LIBRARY_NAME).so
 114         @echo "[LD ] $@"
 115         @$(LD) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@
 116
 117 $(OBJDIR)/%.o: $(SRC_PATH)/%.c $(DEPDIR)/%.d
 118         @echo "[C  ] $(notdir $*)"
 119         @$(CC) $(DEPFLAGS) $(CFLAGS) -c $< -o $@
 120         @$(POSTCOMPILE)
 121
 122 include $(wildcard $(patsubst %,$(DEPDIR)/%.d,$(basename $(SRCS))))
 123
 124 $(OBJDIR)/%.o: $(LIBRARY_PATH)/%.c $(DEPDIR)/%.d
 125         @echo "[C  ] $(notdir $*)"
 126         @$(CC) $(DEPFLAGS) $(LIBCFLAGS) -c $< -o $@
 127         @$(POSTCOMPILE)
 128
 129 include $(wildcard $(patsubst %,$(DEPDIR)/%.d,$(basename $(LIBSRCS))))
 130
 131 $(DEPDIR)/%.d: ;
 132
 133 .PRECIOUS: $(DEPDIR)/%.d
 134
 135 #FIXME: add an install target
 136
 137 clean:
 138         @echo "[CLN]"
 139         -@rm -r $(BUILDDIR)
 140         -@rm $(BINARY_NAME)
 141         -@rm $(BINARY_NAME).static
 142         -@rm $(BINARY_NAME).dynamic
 143         -@rm $(LIBRARY_PATH)/$(LIBRARY_NAME).a
 144         -@rm $(LIBRARY_PATH)/$(LIBRARY_NAME).so
 145
 146 disassemble: $(BINARY_NAME)
 147         objdump -d $< | less
 148
 149 symbols: $(BINARY_NAME)
 150         objdump -t $< | sort | less