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1 | # Sample Makefile to build simple project. |
2 | # | |
3 | # This Makefile expect all source files (.c) to be at the same level, in the | |
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4 | # $(SRC_PATH) directory. |
5 | # | |
8df01c74 | 6 | # This Makefile expect all embedded library source files (.c) to be at the same level, in the |
49a168a5 | 7 | # $(LIBRARY_PATH) directory. |
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8 | # |
9 | # It will automatically generate dependencies, compile all files, and produce a | |
49a168a5 | 10 | # binary using the provided name linked against the library if necessary. |
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11 | # |
12 | # Set BINARY_NAME to the name of the binary file to build. | |
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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. | |
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17 | # |
18 | # Automatic dependencies code from: | |
19 | # http://make.mad-scientist.net/papers/advanced-auto-dependency-generation/#tldr | |
20 | BINARY_NAME=exo2 | |
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21 | SRC_PATH:=src |
22 | LIBRARY_NAME=libexo2 | |
23 | LIBRARY_PATH:=lib | |
a5a96953 | 24 | BUILD_TYPE=debug |
49a168a5 | 25 | #BUILD_TYPE=release |
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26 | |
27 | # ==================================== | |
28 | # DO NOT CHANGE STUFF BEYOND THIS LINE | |
29 | # ==================================== | |
30 | ||
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31 | CC=gcc |
32 | LD=gcc | |
33 | AR=ar | |
34 | ||
35 | WARN_FLAGS = -Wall -Wextra | |
36 | STD_FLAG = -std=c11 | |
5d640630 | 37 | UNAME := $(shell uname -o) |
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38 | |
39 | ifeq ($(BUILD_TYPE),debug) | |
40 | BUILDDIR := .build/debug | |
41 | DEBUG_FLAG = -g | |
42 | STRIP_FLAG = | |
43 | OPTI_FLAG = -O0 | |
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44 | LTO_SUPPORT = yes |
45 | GOLD_SUPPORT = yes | |
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46 | else |
47 | BUILDDIR := .build/release | |
48 | DEBUG_FLAG = | |
49 | STRIP_FLAG = -s | |
bb39798e | 50 | OPTI_FLAG = -O3 |
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51 | LTO_SUPPORT = yes |
52 | GOLD_SUPPORT = yes | |
53 | endif | |
54 | ||
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55 | BINARY_SUFFIX := |
56 | DLIB_PREFIX := | |
57 | SDLIB_PREFIX := | |
58 | DLIB_SUFFIX := .so | |
59 | SLIB_SUFFIX := .a | |
60 | ||
61 | OBJDIR := $(BUILDDIR)/objs | |
62 | $(shell mkdir -p $(OBJDIR)) | |
63 | ||
64 | SRCS=$(wildcard $(SRC_PATH)/*.c) | |
65 | LIBSRCS=$(wildcard $(LIBRARY_PATH)/*.c) | |
66 | OBJS=$(patsubst %.c,$(OBJDIR)/%.o,$(notdir $(SRCS))) | |
67 | LIBOBJS=$(patsubst %.c,$(OBJDIR)/%.o,$(notdir $(LIBSRCS))) | |
68 | ||
69 | DEPDIR := $(BUILDDIR)/deps | |
70 | $(shell mkdir -p $(DEPDIR)) | |
71 | DEPFLAGS = -MT $@ -MMD -MP -MF $(DEPDIR)/$(notdir $*).Td | |
72 | POSTCOMPILE = mv -f $(DEPDIR)/$(notdir $*).Td $(DEPDIR)/$(notdir $*).d | |
73 | ||
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74 | ifeq ($(UNAME),Cygwin) |
75 | GOLD_SUPPORT = no | |
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76 | BINARY_SUFFIX := .exe |
77 | DLIB_SUFFIX := .dll | |
78 | CYGWIN_LDLIBS_NOARCHIVE = | |
79 | CYGWIN_LIBLDFLAGS := -Wl,--out-implib=$(LIBRARY_PATH)/$(DLIB_PREFIX)$(LIBRARY_NAME)$(DLIB_SUFFIX).a \ | |
80 | -Wl,--export-all-symbols \ | |
81 | -Wl,--enable-auto-import | |
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82 | endif |
83 | ||
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84 | ifeq ($(LTO_SUPPORT),yes) |
85 | CFLAGS_LTO = -flto -ffat-lto-objects | |
86 | LDFLAGS_LTO = -fuse-linker-plugin -flto | |
87 | endif | |
88 | ||
89 | ifeq ($(GOLD_SUPPORT),yes) | |
90 | LDFLAGS_GOLD = -fuse-ld=gold | |
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91 | endif |
92 | ||
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93 | # Putting header files in the source directory is not the purpose of this INCLUDES_PATH variable |
94 | INCLUDES_PATH := $(INCLUDES_PATH) -I$(LIBRARY_PATH) | |
95 | CFLAGS := $(CFLAGS) $(CFLAGS_LTO) $(WARN_FLAGS) $(STD_FLAG) $(OPTI_FLAG) $(DEBUG_FLAG) $(INCLUDES_PATH) | |
49a168a5 | 96 | LIBCFLAGS := -fPIC $(CFLAGS) |
aae22ca2 | 97 | LDFLAGS := $(LDFLAGS) $(LDFLAGS_LTO) $(LDFLAGS_GOLD) $(STRIP_FLAG) |
a5a96953 | 98 | LIBLDFLAGS := -shared $(LDFLAGS) |
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99 | STATICLIBLDFLAGS := -static $(LDFLAGS) |
100 | LDLIBS := $(LDLIBS) -L$(LIBRARY_PATH) -l$(BINARY_NAME) | |
a5a96953 | 101 | |
16840855 | 102 | all: $(BINARY_NAME)$(BINARY_SUFFIX) $(BINARY_NAME).dynamic$(BINARY_SUFFIX) $(BINARY_NAME).static$(BINARY_SUFFIX) |
a5a96953 | 103 | |
16840855 | 104 | $(LIBRARY_PATH)/$(SLIB_PREFIX)$(LIBRARY_NAME)$(SLIB_SUFFIX): $(LIBOBJS) |
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105 | @echo "[AR StO] $@" |
106 | @$(AR) rcs $@ $^ | |
107 | ||
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108 | ifeq ($(UNAME),Cygwin) |
109 | $(LIBRARY_PATH)/$(DLIB_PREFIX)$(LIBRARY_NAME)$(DLIB_SUFFIX).a: $(LIBRARY_PATH)/$(DLIB_PREFIX)$(LIBRARY_NAME)$(DLIB_SUFFIX) | |
110 | $(LIBRARY_PATH)/$(DLIB_PREFIX)$(LIBRARY_NAME)$(DLIB_SUFFIX): $(LIBOBJS) | |
111 | @echo "[LD DLL] $@" | |
112 | @$(LD) $(LIBCFLAGS) $(LIBLDFLAGS) $(CYGWIN_LIBLDFLAGS) -Wl,--whole-archive $^ -Wl,--no-whole-archive $(CYGWIN_LDLIBS_NOARCHIVE) -o $@ | |
113 | else | |
114 | $(LIBRARY_PATH)/$(DLIB_PREFIX)$(LIBRARY_NAME)$(DLIB_SUFFIX): $(LIBOBJS) | |
a5a96953 | 115 | @echo "[LD ShO] $@" |
49a168a5 | 116 | @$(LD) $(LIBCFLAGS) $(LIBLDFLAGS) $^ -o $@ |
16840855 | 117 | endif |
a5a96953 | 118 | |
16840855 | 119 | #$(BINARY_NAME)$(BINARY_SUFFIX): $(OBJS) $(LIBOBJS) |
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120 | # @echo "[LD ] $@" |
121 | # @$(LD) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@ | |
a5a96953 | 122 | |
16840855 | 123 | $(BINARY_NAME)$(BINARY_SUFFIX): $(OBJS) $(LIBRARY_PATH)/$(SLIB_PREFIX)$(LIBRARY_NAME)$(SLIB_SUFFIX) |
5553a759 | 124 | @echo "[LD ] $@" |
49a168a5 | 125 | @$(LD) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@ |
5553a759 | 126 | |
16840855 | 127 | $(BINARY_NAME).static$(BINARY_SUFFIX): $(OBJS) $(LIBRARY_PATH)/$(SLIB_PREFIX)$(LIBRARY_NAME)$(SLIB_SUFFIX) |
a5a96953 | 128 | @echo "[LD ] $@" |
49a168a5 | 129 | @$(LD) $(CFLAGS) $(STATICLIBLDFLAGS) $^ $(LDLIBS) -o $@ |
a5a96953 | 130 | |
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131 | ifeq ($(UNAME),Cygwin) |
132 | $(BINARY_NAME).dynamic$(BINARY_SUFFIX): $(OBJS) $(LIBRARY_PATH)/$(DLIB_PREFIX)$(LIBRARY_NAME)$(DLIB_SUFFIX).a | |
133 | else | |
134 | $(BINARY_NAME).dynamic$(BINARY_SUFFIX): $(OBJS) $(LIBRARY_PATH)/$(DLIB_PREFIX)$(LIBRARY_NAME)$(DLIB_SUFFIX) | |
135 | endif | |
a5a96953 | 136 | @echo "[LD ] $@" |
49a168a5 | 137 | @$(LD) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@ |
a5a96953 | 138 | |
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139 | $(OBJDIR)/%.o: $(SRC_PATH)/%.c $(DEPDIR)/%.d |
140 | @echo "[C ] $(notdir $*)" | |
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141 | @$(CC) $(DEPFLAGS) $(CFLAGS) -c $< -o $@ |
142 | @$(POSTCOMPILE) | |
143 | ||
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144 | include $(wildcard $(patsubst %,$(DEPDIR)/%.d,$(basename $(SRCS)))) |
145 | ||
146 | $(OBJDIR)/%.o: $(LIBRARY_PATH)/%.c $(DEPDIR)/%.d | |
147 | @echo "[C ] $(notdir $*)" | |
148 | @$(CC) $(DEPFLAGS) $(LIBCFLAGS) -c $< -o $@ | |
149 | @$(POSTCOMPILE) | |
150 | ||
151 | include $(wildcard $(patsubst %,$(DEPDIR)/%.d,$(basename $(LIBSRCS)))) | |
152 | ||
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153 | $(DEPDIR)/%.d: ; |
154 | ||
155 | .PRECIOUS: $(DEPDIR)/%.d | |
156 | ||
49a168a5 | 157 | #FIXME: add an install target |
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158 | |
159 | clean: | |
160 | @echo "[CLN]" | |
161 | -@rm -r $(BUILDDIR) | |
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162 | -@rm $(BINARY_NAME)$(BINARY_SUFFIX) |
163 | -@rm $(BINARY_NAME).static$(BINARY_SUFFIX) | |
164 | -@rm $(BINARY_NAME).dynamic$(BINARY_SUFFIX) | |
165 | -@rm $(LIBRARY_PATH)/$(SLIB_PREFIX)$(LIBRARY_NAME)$(SLIB_SUFFIX) | |
166 | -@rm $(LIBRARY_PATH)/$(DLIB_PREFIX)$(LIBRARY_NAME)$(DLIB_SUFFIX) | |
167 | ifeq ($(UNAME),Cygwin) | |
168 | -@rm $(LIBRARY_PATH)/$(DLIB_PREFIX)$(LIBRARY_NAME)$(DLIB_SUFFIX).a | |
169 | endif | |
a5a96953 | 170 | |
16840855 | 171 | disassemble: $(BINARY_NAME)$(BINARY_SUFFIX) |
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172 | objdump -d $< | less |
173 | ||
16840855 | 174 | symbols: $(BINARY_NAME)$(BINARY_SUFFIX) |
a5a96953 | 175 | objdump -t $< | sort | less |