upipe/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=upipe
  15 BUILD_TYPE=debug
  16 #BUILD_TYPE=release
  17 LDLIBS=-lpthread
  18
  19 # ====================================
  20 # DO NOT CHANGE STUFF BEYOND THIS LINE
  21 # ====================================
  22
  23 all: $(BINARY_NAME)
  24
  25 CC=gcc
  26 LD=gcc
  27
  28 WARN_FLAGS = -Wall -Wextra
  29 STD_FLAG = -std=c11
  30
  31 ifeq ($(BUILD_TYPE),debug)
  32 BUILDDIR := .build/debug
  33 DEBUG_FLAG = -g
  34 DEBUG = 1
  35 STRIP_FLAG =
  36 OPTI_FLAG = -O0
  37 else
  38 BUILDDIR := .build/release
  39 DEBUG_FLAG =
  40 DEBUG = 0
  41 STRIP_FLAG = -s
  42 OPTI_FLAG = -O3
  43 endif
  44
  45 CFLAGS := -DDEBUG=$(DEBUG) $(CFLAGS) $(WARN_FLAGS) $(STD_FLAG) $(OPTI_FLAG) $(DEBUG_FLAG)
  46 LDFLAGS := $(LDFLAGS) $(STRIP_FLAG)
  47
  48 OBJDIR := $(BUILDDIR)/objs
  49 $(shell mkdir -p $(OBJDIR))
  50
  51 SRCS=$(wildcard *.c)
  52 OBJS=$(patsubst %.c,$(OBJDIR)/%.o,$(SRCS))
  53
  54 DEPDIR := $(BUILDDIR)/deps
  55 $(shell mkdir -p $(DEPDIR))
  56 DEPFLAGS = -MT $@ -MMD -MP -MF $(DEPDIR)/$*.Td
  57 POSTCOMPILE = mv -f $(DEPDIR)/$*.Td $(DEPDIR)/$*.d
  58
  59 $(BINARY_NAME): $(OBJS)
  60         @echo "[LD ] $@"
  61         @$(LD) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@
  62
  63 $(OBJDIR)/%.o: %.c $(DEPDIR)/%.d
  64         @echo "[C  ] $*"
  65         @$(CC) $(DEPFLAGS) $(CFLAGS) -c $< -o $@
  66         @$(POSTCOMPILE)
  67
  68 $(DEPDIR)/%.d: ;
  69
  70 .PRECIOUS: $(DEPDIR)/%.d
  71
  72 include $(wildcard $(patsubst %,$(DEPDIR)/%.d,$(basename $(SRCS))))
  73
  74 clean:
  75         @echo "[CLN]"
  76         -@rm -r $(BUILDDIR)
  77         -@rm $(BINARY_NAME)
  78
  79 disassemble: $(BINARY_NAME)
  80         objdump -d $< | less
  81
  82 symbols: $(BINARY_NAME)
  83         objdump -t $< | sort | less