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 # $(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 $(BINARY_NAME) library name.
  16 # Set BUILD_TYPE to either debug or release.
  17 #
  18 # Automatic dependencies code from:
  19 # http://make.mad-scientist.net/papers/advanced-auto-dependency-generation/#tldr
  20 BINARY_NAME:=exo1
  21 SRC_PATH:=src
  22 LIBRARY_NAME:=lib$(BINARY_NAME)
  23 LIBRARY_PATH:=lib
  24 LDLIBS:=-l$(BINARY_NAME)
  25 BUILD_TYPE:=debug
  26 #BUILD_TYPE=release
  27
  28 # ====================================
  29 # DO NOT CHANGE STUFF BEYOND THIS LINE
  30 # ====================================
  31
  32 CC=gcc
  33 LD=gcc
  34 AR=ar
  35
  36 WARN_FLAGS = -Wall -Wextra
  37 STD_FLAG = -std=c11
  38 UNAME := $(shell uname -o)
  39
  40 ifeq ($(BUILD_TYPE),debug)
  41 BUILDDIR := .build/debug
  42 DEBUG_FLAG = -g
  43 STRIP_FLAG =
  44 OPTI_FLAG = -O0
  45 LTO_SUPPORT = yes
  46 GOLD_SUPPORT = yes
  47 else
  48 BUILDDIR := .build/release
  49 DEBUG_FLAG =
  50 STRIP_FLAG = -s
  51 OPTI_FLAG = -O3
  52 LTO_SUPPORT = yes
  53 GOLD_SUPPORT = yes
  54 endif
  55
  56 BINARY_SUFFIX :=
  57 DLIB_PREFIX :=
  58 SDLIB_PREFIX :=
  59 DLIB_SUFFIX := .so
  60 SLIB_SUFFIX := .a
  61
  62 OBJDIR := $(BUILDDIR)/objs
  63 $(shell mkdir -p $(OBJDIR))
  64
  65 SRCS=$(wildcard $(SRC_PATH)/*.c)
  66 LIBSRCS=$(wildcard $(LIBRARY_PATH)/*.c)
  67 OBJS=$(patsubst %.c,$(OBJDIR)/%.o,$(notdir $(SRCS)))
  68 LIBOBJS=$(patsubst %.c,$(OBJDIR)/%.o,$(notdir $(LIBSRCS)))
  69
  70 DEPDIR := $(BUILDDIR)/deps
  71 $(shell mkdir -p $(DEPDIR))
  72 DEPFLAGS = -MT $@ -MMD -MP -MF $(DEPDIR)/$(notdir $*).Td
  73 POSTCOMPILE = mv -f $(DEPDIR)/$(notdir $*).Td $(DEPDIR)/$(notdir $*).d
  74
  75 ifeq ($(UNAME),Cygwin)
  76 CYGWIN_DLIBRARY_NAME := $(subst lib,cyg,$(LIBRARY_NAME))
  77 GOLD_SUPPORT = no
  78 BINARY_SUFFIX := .exe
  79 DLIB_SUFFIX := .dll
  80 CYGWIN_LDLIBS_NOARCHIVE :=
  81 CYGWIN_LIBLDFLAGS := -Wl,--out-implib=$(LIBRARY_PATH)/$(DLIB_PREFIX)$(LIBRARY_NAME)$(DLIB_SUFFIX).a \
  82     -Wl,--export-all-symbols \
  83     -Wl,--enable-auto-import
  84 endif
  85
  86 ifeq ($(LTO_SUPPORT),yes)
  87 CFLAGS_LTO = -flto -ffat-lto-objects
  88 LDFLAGS_LTO = -fuse-linker-plugin -flto
  89 endif
  90
  91 ifeq ($(GOLD_SUPPORT),yes)
  92 LDFLAGS_GOLD = -fuse-ld=gold
  93 endif
  94
  95 # Putting header files in the source directory is not the purpose of this INCLUDES_PATH variable
  96 INCLUDES_PATH := $(INCLUDES_PATH) -I$(LIBRARY_PATH)
  97 CFLAGS := $(CFLAGS) $(CFLAGS_LTO) $(WARN_FLAGS) $(STD_FLAG) $(OPTI_FLAG) $(DEBUG_FLAG) $(INCLUDES_PATH)
  98 LIBCFLAGS := -fPIC $(CFLAGS)
  99 LDFLAGS := $(LDFLAGS) $(LDFLAGS_LTO) $(LDFLAGS_GOLD) $(STRIP_FLAG)
 100 LIBLDFLAGS := -shared $(LDFLAGS)
 101 STATICLIBLDFLAGS := -static $(LDFLAGS)
 102 LDLIBS := $(LDLIBS) -L$(LIBRARY_PATH)
 103
 104 all: $(BINARY_NAME)$(BINARY_SUFFIX) $(BINARY_NAME).dynamic$(BINARY_SUFFIX) $(BINARY_NAME).static$(BINARY_SUFFIX)
 105
 106 $(LIBRARY_PATH)/$(SLIB_PREFIX)$(LIBRARY_NAME)$(SLIB_SUFFIX): $(LIBOBJS)
 107         @echo "[AR StO] $@"
 108         @$(AR) rcs $@ $^
 109
 110 ifeq ($(UNAME),Cygwin)
 111 $(LIBRARY_PATH)/$(DLIB_PREFIX)$(LIBRARY_NAME)$(DLIB_SUFFIX).a: $(LIBRARY_PATH)/$(DLIB_PREFIX)$(CYGWIN_DLIBRARY_NAME)$(DLIB_SUFFIX)
 112 $(LIBRARY_PATH)/$(DLIB_PREFIX)$(CYGWIN_DLIBRARY_NAME)$(DLIB_SUFFIX): $(LIBOBJS)
 113         @echo "[LD DLL] $@"
 114         @$(LD) $(LIBCFLAGS) $(LIBLDFLAGS) $(CYGWIN_LIBLDFLAGS) -Wl,--whole-archive $^ -Wl,--no-whole-archive $(CYGWIN_LDLIBS_NOARCHIVE) -o $@
 115 else
 116 $(LIBRARY_PATH)/$(DLIB_PREFIX)$(LIBRARY_NAME)$(DLIB_SUFFIX): $(LIBOBJS)
 117         @echo "[LD ShO] $@"
 118         @$(LD) $(LIBCFLAGS) $(LIBLDFLAGS) $^ -o $@
 119 endif
 120
 121 #$(BINARY_NAME)$(BINARY_SUFFIX): $(OBJS) $(LIBOBJS)
 122 #       @echo "[LD ] $@"
 123 #       @$(LD) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@
 124
 125 $(BINARY_NAME)$(BINARY_SUFFIX): $(OBJS) $(LIBRARY_PATH)/$(SLIB_PREFIX)$(LIBRARY_NAME)$(SLIB_SUFFIX)
 126         @echo "[LD ] $@"
 127         @$(LD) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@
 128
 129 $(BINARY_NAME).static$(BINARY_SUFFIX): $(OBJS) $(LIBRARY_PATH)/$(SLIB_PREFIX)$(LIBRARY_NAME)$(SLIB_SUFFIX)
 130         @echo "[LD ] $@"
 131         @$(LD) $(CFLAGS) $(STATICLIBLDFLAGS) $^ $(LDLIBS) -o $@
 132
 133 ifeq ($(UNAME),Cygwin)
 134 $(BINARY_NAME).dynamic$(BINARY_SUFFIX): $(OBJS) $(LIBRARY_PATH)/$(DLIB_PREFIX)$(LIBRARY_NAME)$(DLIB_SUFFIX).a
 135 else
 136 $(BINARY_NAME).dynamic$(BINARY_SUFFIX): $(OBJS) $(LIBRARY_PATH)/$(DLIB_PREFIX)$(LIBRARY_NAME)$(DLIB_SUFFIX)
 137 endif
 138         @echo "[LD ] $@"
 139         @$(LD) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@
 140
 141 $(OBJDIR)/%.o: $(SRC_PATH)/%.c $(DEPDIR)/%.d
 142         @echo "[C  ] $(notdir $*)"
 143         @$(CC) $(DEPFLAGS) $(CFLAGS) -c $< -o $@
 144         @$(POSTCOMPILE)
 145
 146 include $(wildcard $(patsubst %,$(DEPDIR)/%.d,$(basename $(SRCS))))
 147
 148 $(OBJDIR)/%.o: $(LIBRARY_PATH)/%.c $(DEPDIR)/%.d
 149         @echo "[C  ] $(notdir $*)"
 150         @$(CC) $(DEPFLAGS) $(LIBCFLAGS) -c $< -o $@
 151         @$(POSTCOMPILE)
 152
 153 include $(wildcard $(patsubst %,$(DEPDIR)/%.d,$(basename $(LIBSRCS))))
 154
 155 $(DEPDIR)/%.d: ;
 156
 157 .PRECIOUS: $(DEPDIR)/%.d
 158
 159 #FIXME: add an install target
 160
 161 clean:
 162         @echo "[CLN]"
 163         -@rm -r $(BUILDDIR)
 164         -@rm $(BINARY_NAME)$(BINARY_SUFFIX)
 165         -@rm $(BINARY_NAME).static$(BINARY_SUFFIX)
 166         -@rm $(BINARY_NAME).dynamic$(BINARY_SUFFIX)
 167         -@rm $(LIBRARY_PATH)/$(SLIB_PREFIX)$(LIBRARY_NAME)$(SLIB_SUFFIX)
 168 ifeq ($(UNAME),Cygwin)
 169         -@rm $(LIBRARY_PATH)/$(DLIB_PREFIX)$(CYGWIN_DLIBRARY_NAME)$(DLIB_SUFFIX)
 170         -@rm $(LIBRARY_PATH)/$(DLIB_PREFIX)$(LIBRARY_NAME)$(DLIB_SUFFIX).a
 171 else
 172         -@rm $(LIBRARY_PATH)/$(DLIB_PREFIX)$(LIBRARY_NAME)$(DLIB_SUFFIX)
 173 endif
 174
 175 disassemble: $(BINARY_NAME)$(BINARY_SUFFIX)
 176         objdump -d $< | less
 177
 178 symbols: $(BINARY_NAME)$(BINARY_SUFFIX)
 179         objdump -t $< | sort | less