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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 | |
2fa527aa JB |
4 | # $(SRC_PATH) directory. |
5 | # | |
8df01c74 | 6 | # This Makefile expect all embedded library source files (.c) to be at the same level, in the |
2fa527aa | 7 | # $(LIBRARY_PATH) directory. |
eddc018d JB |
8 | # |
9 | # It will automatically generate dependencies, compile all files, and produce a | |
2fa527aa | 10 | # binary using the provided name linked against the library if necessary. |
eddc018d JB |
11 | # |
12 | # Set BINARY_NAME to the name of the binary file to build. | |
d007ceaa JB |
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 $(BINARY_NAME) library name. | |
16 | # Set BUILD_TYPE to either debug or release. | |
eddc018d JB |
17 | # |
18 | # Automatic dependencies code from: | |
19 | # http://make.mad-scientist.net/papers/advanced-auto-dependency-generation/#tldr | |
ee5eaefb | 20 | BINARY_NAME:=exo1 |
a9c4c876 | 21 | SRC_PATH:=src |
98edfbe1 | 22 | LIBRARY_NAME:=lib$(BINARY_NAME) |
eddc018d | 23 | LIBRARY_PATH:=lib |
98edfbe1 | 24 | LDLIBS:=-l$(BINARY_NAME) |
ee5eaefb | 25 | BUILD_TYPE:=debug |
4d6570d9 | 26 | #BUILD_TYPE:=release |
eddc018d JB |
27 | |
28 | # ==================================== | |
29 | # DO NOT CHANGE STUFF BEYOND THIS LINE | |
30 | # ==================================== | |
31 | ||
eddc018d JB |
32 | CC=gcc |
33 | LD=gcc | |
34 | AR=ar | |
35 | ||
36 | WARN_FLAGS = -Wall -Wextra | |
37 | STD_FLAG = -std=c11 | |
4d6570d9 | 38 | UNAME := $(shell uname -s) |
eddc018d JB |
39 | |
40 | ifeq ($(BUILD_TYPE),debug) | |
41 | BUILDDIR := .build/debug | |
42 | DEBUG_FLAG = -g | |
43 | STRIP_FLAG = | |
44 | OPTI_FLAG = -O0 | |
709c3954 JB |
45 | LTO_SUPPORT = yes |
46 | GOLD_SUPPORT = yes | |
eddc018d JB |
47 | else |
48 | BUILDDIR := .build/release | |
49 | DEBUG_FLAG = | |
50 | STRIP_FLAG = -s | |
51 | OPTI_FLAG = -O3 | |
25dc671f JB |
52 | LTO_SUPPORT = yes |
53 | GOLD_SUPPORT = yes | |
54 | endif | |
55 | ||
3a3dd236 JB |
56 | BINARY_SUFFIX := |
57 | DLIB_PREFIX := | |
58 | SDLIB_PREFIX := | |
4d6570d9 | 59 | SHLIBLDFLAG := -shared |
3a3dd236 JB |
60 | DLIB_SUFFIX := .so |
61 | SLIB_SUFFIX := .a | |
62 | ||
63 | OBJDIR := $(BUILDDIR)/objs | |
64 | $(shell mkdir -p $(OBJDIR)) | |
65 | ||
66 | SRCS=$(wildcard $(SRC_PATH)/*.c) | |
67 | LIBSRCS=$(wildcard $(LIBRARY_PATH)/*.c) | |
68 | OBJS=$(patsubst %.c,$(OBJDIR)/%.o,$(notdir $(SRCS))) | |
69 | LIBOBJS=$(patsubst %.c,$(OBJDIR)/%.o,$(notdir $(LIBSRCS))) | |
70 | ||
71 | DEPDIR := $(BUILDDIR)/deps | |
72 | $(shell mkdir -p $(DEPDIR)) | |
73 | DEPFLAGS = -MT $@ -MMD -MP -MF $(DEPDIR)/$(notdir $*).Td | |
74 | POSTCOMPILE = mv -f $(DEPDIR)/$(notdir $*).Td $(DEPDIR)/$(notdir $*).d | |
75 | ||
4d6570d9 | 76 | ifeq ($(findstring CYGWIN_NT,$(UNAME)),CYGWIN_NT) |
ee5eaefb | 77 | CYGWIN_DLIBRARY_NAME := $(subst lib,cyg,$(LIBRARY_NAME)) |
5d640630 | 78 | GOLD_SUPPORT = no |
4d6570d9 JB |
79 | # Cygwin ncurses do not contain tinfo |
80 | LDLIBS := $(filter-out -ltinfo,$(LDLIBS)) | |
3a3dd236 JB |
81 | BINARY_SUFFIX := .exe |
82 | DLIB_SUFFIX := .dll | |
4d6570d9 JB |
83 | # do not archive external libraries |
84 | CYGWIN_LDLIBS_NOARCHIVE := $(filter-out -l$(BINARY_NAME),$(LDLIBS)) | |
5668eb72 | 85 | CYGWIN_LIBLDFLAGS := -Wl,--out-implib=$(LIBRARY_PATH)/$(DLIB_PREFIX)$(LIBRARY_NAME)$(DLIB_SUFFIX)$(SLIB_SUFFIX) \ |
3a3dd236 JB |
86 | -Wl,--export-all-symbols \ |
87 | -Wl,--enable-auto-import | |
5d640630 JB |
88 | endif |
89 | ||
4d6570d9 JB |
90 | ifeq ($(UNAME),Darwin) |
91 | SHLIBLDFLAG=-dynamiclib | |
92 | LDLIBS := $(filter-out -ltinfo,$(LDLIBS)) | |
93 | DLIB_SUFFIX=.dylib | |
94 | LTO_SUPPORT=no | |
95 | GOLD_SUPPORT=no | |
96 | endif | |
97 | ||
25dc671f JB |
98 | ifeq ($(LTO_SUPPORT),yes) |
99 | CFLAGS_LTO = -flto -ffat-lto-objects | |
100 | LDFLAGS_LTO = -fuse-linker-plugin -flto | |
101 | endif | |
102 | ||
103 | ifeq ($(GOLD_SUPPORT),yes) | |
104 | LDFLAGS_GOLD = -fuse-ld=gold | |
eddc018d JB |
105 | endif |
106 | ||
3a3dd236 JB |
107 | # Putting header files in the source directory is not the purpose of this INCLUDES_PATH variable |
108 | INCLUDES_PATH := $(INCLUDES_PATH) -I$(LIBRARY_PATH) | |
109 | CFLAGS := $(CFLAGS) $(CFLAGS_LTO) $(WARN_FLAGS) $(STD_FLAG) $(OPTI_FLAG) $(DEBUG_FLAG) $(INCLUDES_PATH) | |
a80f64d2 | 110 | LIBCFLAGS := -fPIC $(CFLAGS) |
25dc671f | 111 | LDFLAGS := $(LDFLAGS) $(LDFLAGS_LTO) $(LDFLAGS_GOLD) $(STRIP_FLAG) |
4d6570d9 | 112 | LIBLDFLAGS := $(SHLIBLDFLAG) $(LDFLAGS) |
eddc018d | 113 | STATICLIBLDFLAGS := -static $(LDFLAGS) |
98edfbe1 | 114 | LDLIBS := $(LDLIBS) -L$(LIBRARY_PATH) |
eddc018d | 115 | |
4d6570d9 JB |
116 | # Mac OS X do not support static linking |
117 | ifeq ($(UNAME),Darwin) | |
118 | all: $(BINARY_NAME)$(BINARY_SUFFIX) $(BINARY_NAME).dynamic$(BINARY_SUFFIX) | |
119 | else | |
3a3dd236 | 120 | all: $(BINARY_NAME)$(BINARY_SUFFIX) $(BINARY_NAME).dynamic$(BINARY_SUFFIX) $(BINARY_NAME).static$(BINARY_SUFFIX) |
4d6570d9 | 121 | endif |
eddc018d | 122 | |
3a3dd236 | 123 | $(LIBRARY_PATH)/$(SLIB_PREFIX)$(LIBRARY_NAME)$(SLIB_SUFFIX): $(LIBOBJS) |
eddc018d JB |
124 | @echo "[AR StO] $@" |
125 | @$(AR) rcs $@ $^ | |
126 | ||
4d6570d9 | 127 | ifeq ($(findstring CYGWIN_NT,$(UNAME)),CYGWIN_NT) |
5668eb72 | 128 | $(LIBRARY_PATH)/$(DLIB_PREFIX)$(LIBRARY_NAME)$(DLIB_SUFFIX)$(SLIB_SUFFIX): $(LIBRARY_PATH)/$(DLIB_PREFIX)$(CYGWIN_DLIBRARY_NAME)$(DLIB_SUFFIX) |
ee5eaefb | 129 | $(LIBRARY_PATH)/$(DLIB_PREFIX)$(CYGWIN_DLIBRARY_NAME)$(DLIB_SUFFIX): $(LIBOBJS) |
3a3dd236 JB |
130 | @echo "[LD DLL] $@" |
131 | @$(LD) $(LIBCFLAGS) $(LIBLDFLAGS) $(CYGWIN_LIBLDFLAGS) -Wl,--whole-archive $^ -Wl,--no-whole-archive $(CYGWIN_LDLIBS_NOARCHIVE) -o $@ | |
132 | else | |
133 | $(LIBRARY_PATH)/$(DLIB_PREFIX)$(LIBRARY_NAME)$(DLIB_SUFFIX): $(LIBOBJS) | |
eddc018d | 134 | @echo "[LD ShO] $@" |
4d6570d9 | 135 | @$(LD) $(LIBCFLAGS) $(LIBLDFLAGS) $^ $(LDLIBS) -o $@ |
3a3dd236 | 136 | endif |
eddc018d | 137 | |
3a3dd236 | 138 | #$(BINARY_NAME)$(BINARY_SUFFIX): $(OBJS) $(LIBOBJS) |
eddc018d | 139 | # @echo "[LD ] $@" |
a80f64d2 | 140 | # @$(LD) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@ |
eddc018d | 141 | |
3a3dd236 | 142 | $(BINARY_NAME)$(BINARY_SUFFIX): $(OBJS) $(LIBRARY_PATH)/$(SLIB_PREFIX)$(LIBRARY_NAME)$(SLIB_SUFFIX) |
eddc018d | 143 | @echo "[LD ] $@" |
a80f64d2 | 144 | @$(LD) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@ |
eddc018d | 145 | |
3a3dd236 | 146 | $(BINARY_NAME).static$(BINARY_SUFFIX): $(OBJS) $(LIBRARY_PATH)/$(SLIB_PREFIX)$(LIBRARY_NAME)$(SLIB_SUFFIX) |
eddc018d | 147 | @echo "[LD ] $@" |
a80f64d2 | 148 | @$(LD) $(CFLAGS) $(STATICLIBLDFLAGS) $^ $(LDLIBS) -o $@ |
eddc018d | 149 | |
4d6570d9 | 150 | ifeq ($(findstring CYGWIN_NT,$(UNAME)),CYGWIN_NT) |
5668eb72 | 151 | $(BINARY_NAME).dynamic$(BINARY_SUFFIX): $(OBJS) $(LIBRARY_PATH)/$(DLIB_PREFIX)$(LIBRARY_NAME)$(DLIB_SUFFIX)$(SLIB_SUFFIX) |
3a3dd236 JB |
152 | else |
153 | $(BINARY_NAME).dynamic$(BINARY_SUFFIX): $(OBJS) $(LIBRARY_PATH)/$(DLIB_PREFIX)$(LIBRARY_NAME)$(DLIB_SUFFIX) | |
154 | endif | |
eddc018d | 155 | @echo "[LD ] $@" |
a80f64d2 | 156 | @$(LD) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@ |
eddc018d | 157 | |
a9c4c876 | 158 | $(OBJDIR)/%.o: $(SRC_PATH)/%.c $(DEPDIR)/%.d |
a80f64d2 | 159 | @echo "[C ] $(notdir $*)" |
eddc018d JB |
160 | @$(CC) $(DEPFLAGS) $(CFLAGS) -c $< -o $@ |
161 | @$(POSTCOMPILE) | |
162 | ||
163 | include $(wildcard $(patsubst %,$(DEPDIR)/%.d,$(basename $(SRCS)))) | |
164 | ||
a9c4c876 | 165 | $(OBJDIR)/%.o: $(LIBRARY_PATH)/%.c $(DEPDIR)/%.d |
a80f64d2 JB |
166 | @echo "[C ] $(notdir $*)" |
167 | @$(CC) $(DEPFLAGS) $(LIBCFLAGS) -c $< -o $@ | |
eddc018d JB |
168 | @$(POSTCOMPILE) |
169 | ||
170 | include $(wildcard $(patsubst %,$(DEPDIR)/%.d,$(basename $(LIBSRCS)))) | |
171 | ||
172 | $(DEPDIR)/%.d: ; | |
173 | ||
174 | .PRECIOUS: $(DEPDIR)/%.d | |
175 | ||
a80f64d2 JB |
176 | #FIXME: add an install target |
177 | ||
eddc018d JB |
178 | clean: |
179 | @echo "[CLN]" | |
180 | -@rm -r $(BUILDDIR) | |
3a3dd236 | 181 | -@rm $(BINARY_NAME)$(BINARY_SUFFIX) |
4d6570d9 | 182 | ifneq ($(UNAME),Darwin) |
3a3dd236 | 183 | -@rm $(BINARY_NAME).static$(BINARY_SUFFIX) |
4d6570d9 | 184 | endif |
3a3dd236 JB |
185 | -@rm $(BINARY_NAME).dynamic$(BINARY_SUFFIX) |
186 | -@rm $(LIBRARY_PATH)/$(SLIB_PREFIX)$(LIBRARY_NAME)$(SLIB_SUFFIX) | |
4d6570d9 | 187 | ifeq ($(findstring CYGWIN_NT,$(UNAME)),CYGWIN_NT) |
ee5eaefb | 188 | -@rm $(LIBRARY_PATH)/$(DLIB_PREFIX)$(CYGWIN_DLIBRARY_NAME)$(DLIB_SUFFIX) |
5668eb72 | 189 | -@rm $(LIBRARY_PATH)/$(DLIB_PREFIX)$(LIBRARY_NAME)$(DLIB_SUFFIX)$(SLIB_SUFFIX) |
ee5eaefb JB |
190 | else |
191 | -@rm $(LIBRARY_PATH)/$(DLIB_PREFIX)$(LIBRARY_NAME)$(DLIB_SUFFIX) | |
3a3dd236 | 192 | endif |
eddc018d | 193 | |
3a3dd236 | 194 | disassemble: $(BINARY_NAME)$(BINARY_SUFFIX) |
eddc018d JB |
195 | objdump -d $< | less |
196 | ||
3a3dd236 | 197 | symbols: $(BINARY_NAME)$(BINARY_SUFFIX) |
eddc018d | 198 | objdump -t $< | sort | less |