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 $(BINARY_NAME).static
  33
  34 CC=gcc
  35 LD=gcc
  36 AR=ar
  37
  38 WARN_FLAGS = -Wall -Wextra
  39 STD_FLAG = -std=c11
  40
  41 ifeq ($(BUILD_TYPE),debug)
  42 BUILDDIR := .build/debug
  43 DEBUG_FLAG = -g
  44 STRIP_FLAG =
  45 OPTI_FLAG = -O0
  46 LTO_SUPPORT = yes
  47 GOLD_SUPPORT = yes
  48 else
  49 BUILDDIR := .build/release
  50 DEBUG_FLAG =
  51 STRIP_FLAG = -s
  52 OPTI_FLAG = -O3
  53 LTO_SUPPORT = yes
  54 GOLD_SUPPORT = yes
  55 endif
  56
  57 ifeq ($(LTO_SUPPORT),yes)
  58 CFLAGS_LTO = -flto -ffat-lto-objects
  59 LDFLAGS_LTO = -fuse-linker-plugin -flto
  60 endif
  61
  62 ifeq ($(GOLD_SUPPORT),yes)
  63 LDFLAGS_GOLD = -fuse-ld=gold
  64 endif
  65
  66 # Putting header files in the source directory is not the purpose of this INCLUDES variable
  67 INCLUDES := $(INCLUDES) -I$(LIBRARY_PATH)
  68 CFLAGS := $(CFLAGS) $(CFLAGS_LTO) $(WARN_FLAGS) $(STD_FLAG) $(OPTI_FLAG) $(DEBUG_FLAG) $(INCLUDES)
  69 LIBCFLAGS := -fPIC $(CFLAGS)
  70 LDFLAGS := $(LDFLAGS) $(LDFLAGS_LTO) $(LDFLAGS_GOLD) $(STRIP_FLAG)
  71 LIBLDFLAGS := -shared $(LDFLAGS)
  72 STATICLIBLDFLAGS := -static $(LDFLAGS)
  73 LDLIBS := $(LDLIBS) -L$(LIBRARY_PATH) -l$(BINARY_NAME)
  74
  75 OBJDIR := $(BUILDDIR)/objs
  76 $(shell mkdir -p $(OBJDIR))
  77
  78 SRCS=$(wildcard $(SRC_PATH)/*.c)
  79 LIBSRCS=$(wildcard $(LIBRARY_PATH)/*.c)
  80 OBJS=$(patsubst %.c,$(OBJDIR)/%.o,$(notdir $(SRCS)))
  81 LIBOBJS=$(patsubst %.c,$(OBJDIR)/%.o,$(notdir $(LIBSRCS)))
  82
  83 DEPDIR := $(BUILDDIR)/deps
  84 $(shell mkdir -p $(DEPDIR))
  85 DEPFLAGS = -MT $@ -MMD -MP -MF $(DEPDIR)/$(notdir $*).Td
  86 POSTCOMPILE = mv -f $(DEPDIR)/$(notdir $*).Td $(DEPDIR)/$(notdir $*).d
  87
  88 $(LIBRARY_PATH)/$(LIBRARY_NAME).a: $(LIBOBJS)
  89         @echo "[AR StO] $@"
  90         @$(AR) rcs $@ $^
  91
  92 $(LIBRARY_PATH)/$(LIBRARY_NAME).so: $(LIBOBJS)
  93         @echo "[LD ShO] $@"
  94         @$(LD) $(LIBCFLAGS) $(LIBLDFLAGS) $^ -o $@
  95
  96 #$(BINARY_NAME): $(OBJS) $(LIBOBJS)
  97 #       @echo "[LD ] $@"
  98 #       @$(LD) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@
  99
 100 $(BINARY_NAME): $(OBJS) $(LIBRARY_PATH)/$(LIBRARY_NAME).a
 101         @echo "[LD ] $@"
 102         @$(LD) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@
 103
 104 $(BINARY_NAME).static: $(OBJS) $(LIBRARY_PATH)/$(LIBRARY_NAME).a
 105         @echo "[LD ] $@"
 106         @$(LD) $(CFLAGS) $(STATICLIBLDFLAGS) $^ $(LDLIBS) -o $@
 107
 108 $(BINARY_NAME).dynamic: $(OBJS) $(LIBRARY_PATH)/$(LIBRARY_NAME).so
 109         @echo "[LD ] $@"
 110         @$(LD) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@
 111
 112 $(OBJDIR)/%.o: $(SRC_PATH)/%.c $(DEPDIR)/%.d
 113         @echo "[C  ] $(notdir $*)"
 114         @$(CC) $(DEPFLAGS) $(CFLAGS) -c $< -o $@
 115         @$(POSTCOMPILE)
 116
 117 include $(wildcard $(patsubst %,$(DEPDIR)/%.d,$(basename $(SRCS))))
 118
 119 $(OBJDIR)/%.o: $(LIBRARY_PATH)/%.c $(DEPDIR)/%.d
 120         @echo "[C  ] $(notdir $*)"
 121         @$(CC) $(DEPFLAGS) $(LIBCFLAGS) -c $< -o $@
 122         @$(POSTCOMPILE)
 123
 124 include $(wildcard $(patsubst %,$(DEPDIR)/%.d,$(basename $(LIBSRCS))))
 125
 126 $(DEPDIR)/%.d: ;
 127
 128 .PRECIOUS: $(DEPDIR)/%.d
 129
 130 #FIXME: add an install target
 131
 132 clean:
 133         @echo "[CLN]"
 134         -@rm -r $(BUILDDIR)
 135         -@rm $(BINARY_NAME)
 136         -@rm $(BINARY_NAME).static
 137         -@rm $(BINARY_NAME).dynamic
 138         -@rm $(LIBRARY_PATH)/$(LIBRARY_NAME).a
 139         -@rm $(LIBRARY_PATH)/$(LIBRARY_NAME).so
 140
 141 disassemble: $(BINARY_NAME)
 142         objdump -d $< | less
 143
 144 symbols: $(BINARY_NAME)
 145         objdump -t $< | sort | less