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eddc018d JB |
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. | |
d007ceaa JB |
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. | |
eddc018d JB |
14 | # |
15 | # Automatic dependencies code from: | |
16 | # http://make.mad-scientist.net/papers/advanced-auto-dependency-generation/#tldr | |
17 | BINARY_NAME=exo1 | |
a9c4c876 | 18 | SRC_PATH:=src |
eddc018d JB |
19 | LIBRARY_NAME=libexo1 |
20 | LIBRARY_PATH:=lib | |
eddc018d | 21 | BUILD_TYPE=debug |
a9c4c876 | 22 | #BUILD_TYPE=release |
eddc018d JB |
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 | ||
bdbc4f52 | 49 | # Putting header files in the source directory is not the purpose of this INCLUDES variable |
a9c4c876 JB |
50 | INCLUDES := $(INCLUDES) -I$(SRC_PATH) -I$(LIBRARY_PATH) |
51 | CFLAGS := $(CFLAGS) $(WARN_FLAGS) $(STD_FLAG) $(OPTI_FLAG) $(DEBUG_FLAG) $(INCLUDES) | |
a80f64d2 | 52 | LIBCFLAGS := -fPIC $(CFLAGS) |
eddc018d JB |
53 | LDFLAGS := $(LDFLAGS) $(STRIP_FLAG) |
54 | LIBLDFLAGS := -shared $(LDFLAGS) | |
55 | STATICLIBLDFLAGS := -static $(LDFLAGS) | |
a80f64d2 | 56 | LDLIBS := $(LDLIBS) -L$(LIBRARY_PATH) -l$(BINARY_NAME) |
eddc018d JB |
57 | |
58 | OBJDIR := $(BUILDDIR)/objs | |
59 | $(shell mkdir -p $(OBJDIR)) | |
60 | ||
a9c4c876 | 61 | SRCS=$(wildcard $(SRC_PATH)/*.c) |
eddc018d JB |
62 | LIBSRCS=$(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 | ||
eddc018d JB |
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] $@" | |
a80f64d2 | 77 | @$(LD) $(LIBCFLAGS) $(LIBLDFLAGS) $^ -o $@ |
eddc018d JB |
78 | |
79 | #$(BINARY_NAME): $(OBJS) $(LIBOBJS) | |
80 | # @echo "[LD ] $@" | |
a80f64d2 | 81 | # @$(LD) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@ |
eddc018d JB |
82 | |
83 | $(BINARY_NAME): $(OBJS) $(LIBRARY_PATH)/$(LIBRARY_NAME).a | |
84 | @echo "[LD ] $@" | |
a80f64d2 | 85 | @$(LD) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@ |
eddc018d | 86 | |
eddc018d JB |
87 | $(BINARY_NAME).static: $(OBJS) $(LIBRARY_PATH)/$(LIBRARY_NAME).a |
88 | @echo "[LD ] $@" | |
a80f64d2 | 89 | @$(LD) $(CFLAGS) $(STATICLIBLDFLAGS) $^ $(LDLIBS) -o $@ |
eddc018d | 90 | |
eddc018d JB |
91 | $(BINARY_NAME).dynamic: $(OBJS) $(LIBRARY_PATH)/$(LIBRARY_NAME).so |
92 | @echo "[LD ] $@" | |
a80f64d2 | 93 | @$(LD) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@ |
eddc018d | 94 | |
a9c4c876 | 95 | $(OBJDIR)/%.o: $(SRC_PATH)/%.c $(DEPDIR)/%.d |
a80f64d2 | 96 | @echo "[C ] $(notdir $*)" |
eddc018d JB |
97 | @$(CC) $(DEPFLAGS) $(CFLAGS) -c $< -o $@ |
98 | @$(POSTCOMPILE) | |
99 | ||
100 | include $(wildcard $(patsubst %,$(DEPDIR)/%.d,$(basename $(SRCS)))) | |
101 | ||
a9c4c876 | 102 | $(OBJDIR)/%.o: $(LIBRARY_PATH)/%.c $(DEPDIR)/%.d |
a80f64d2 JB |
103 | @echo "[C ] $(notdir $*)" |
104 | @$(CC) $(DEPFLAGS) $(LIBCFLAGS) -c $< -o $@ | |
eddc018d JB |
105 | @$(POSTCOMPILE) |
106 | ||
107 | include $(wildcard $(patsubst %,$(DEPDIR)/%.d,$(basename $(LIBSRCS)))) | |
108 | ||
109 | $(DEPDIR)/%.d: ; | |
110 | ||
111 | .PRECIOUS: $(DEPDIR)/%.d | |
112 | ||
a80f64d2 JB |
113 | #FIXME: add an install target |
114 | ||
eddc018d JB |
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 |