# Sample Makefile to build simple project.
#
# This Makefile expect all source files (.c) to be at the same level, in the
-# current working directory.
+# $(SRC_PATH) directory.
+#
+# This Makefile expect all embedded library source files (.c) to be at the same level, in the
+# $(LIBRARY_PATH) directory.
#
# It will automatically generate dependencies, compile all files, and produce a
-# binary using the provided name.
+# binary using the provided name linked against the library if necessary.
#
# Set BINARY_NAME to the name of the binary file to build.
-# Set BUILD_TYPE to either debug or release
+# Set LIBRARY_NAME to the name of the library file to build.
+# The default path for the library code and object is lib.
+# By default the linker will look for $(BINARY_NAME) library name.
+# Set BUILD_TYPE to either debug or release.
#
# Automatic dependencies code from:
# http://make.mad-scientist.net/papers/advanced-auto-dependency-generation/#tldr
BINARY_NAME=exo1
-BINARY_PATH:=src
+SRC_PATH:=src
LIBRARY_NAME=libexo1
LIBRARY_PATH:=lib
-#LDLIBS=-L$(LIBRARY_PATH) -l$(BINARY_NAME)
BUILD_TYPE=debug
+#BUILD_TYPE=release
# ====================================
# DO NOT CHANGE STUFF BEYOND THIS LINE
OPTI_FLAG = -O3
endif
-#FIXME: Add a way to better control the library build flag
-CFLAGS := -fPIC $(CFLAGS) $(WARN_FLAGS) $(STD_FLAG) $(OPTI_FLAG) $(DEBUG_FLAG)
+# Putting header files in the source directory is not the purpose of this INCLUDES variable
+INCLUDES := $(INCLUDES) -I$(SRC_PATH) -I$(LIBRARY_PATH)
+CFLAGS := $(CFLAGS) $(WARN_FLAGS) $(STD_FLAG) $(OPTI_FLAG) $(DEBUG_FLAG) $(INCLUDES)
+LIBCFLAGS := -fPIC $(CFLAGS)
LDFLAGS := $(LDFLAGS) $(STRIP_FLAG)
LIBLDFLAGS := -shared $(LDFLAGS)
STATICLIBLDFLAGS := -static $(LDFLAGS)
+LDLIBS := $(LDLIBS) -L$(LIBRARY_PATH) -l$(BINARY_NAME)
OBJDIR := $(BUILDDIR)/objs
$(shell mkdir -p $(OBJDIR))
-SRCS=$(wildcard $(BINARY_PATH)/*.c)
+SRCS=$(wildcard $(SRC_PATH)/*.c)
LIBSRCS=$(wildcard $(LIBRARY_PATH)/*.c)
OBJS=$(patsubst %.c,$(OBJDIR)/%.o,$(notdir $(SRCS)))
LIBOBJS=$(patsubst %.c,$(OBJDIR)/%.o,$(notdir $(LIBSRCS)))
DEPFLAGS = -MT $@ -MMD -MP -MF $(DEPDIR)/$(notdir $*).Td
POSTCOMPILE = mv -f $(DEPDIR)/$(notdir $*).Td $(DEPDIR)/$(notdir $*).d
-print:
- @echo $(basename $(notdir $(SRCS)))
- @echo $(notdir $(SRCS))
- @echo $(DEPDIR)/%d
- @echo $(wildcard $(patsubst %,$(DEPDIR)/%.d,$(basename $(SRCS))))
- @echo $(OBJS) $(LIBOBJS)
- @echo $(SRCS) $(LIBSRCS)
- @echo $(POSTCOMPILE)
-
$(LIBRARY_PATH)/$(LIBRARY_NAME).a: $(LIBOBJS)
@echo "[AR StO] $@"
@$(AR) rcs $@ $^
$(LIBRARY_PATH)/$(LIBRARY_NAME).so: $(LIBOBJS)
@echo "[LD ShO] $@"
- @$(LD) $(CFLAGS) $(LIBLDFLAGS) $^ $(LDLIBS) -o $@
+ @$(LD) $(LIBCFLAGS) $(LIBLDFLAGS) $^ -o $@
#$(BINARY_NAME): $(OBJS) $(LIBOBJS)
# @echo "[LD ] $@"
-# $(LD) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@
+# @$(LD) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@
$(BINARY_NAME): $(OBJS) $(LIBRARY_PATH)/$(LIBRARY_NAME).a
@echo "[LD ] $@"
- @$(LD) $(CFLAGS) $(LDFLAGS) $^ $(LOCALLDLIBS) $(LDLIBS) -o $@
+ @$(LD) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@
-LOCALLDLIBS=-L$(LIBRARY_PATH) -l$(BINARY_NAME)
$(BINARY_NAME).static: $(OBJS) $(LIBRARY_PATH)/$(LIBRARY_NAME).a
@echo "[LD ] $@"
- @$(LD) $(CFLAGS) $(STATICLIBLDFLAGS) $^ $(LOCALLDLIBS) $(LDLIBS) -o $@
-
-#$(BINARY_NAME).staticlocal: $(OBJS) $(LIBRARY_PATH)/$(LIBRARY_NAME).a
-# @echo "[LD ] $@"
-# @$(LD) $(CFLAGS) $(LDFLAGS) $^ $(LOCALLDLIBS) $(LDLIBS) -o $@
+ @$(LD) $(CFLAGS) $(STATICLIBLDFLAGS) $^ $(LDLIBS) -o $@
$(BINARY_NAME).dynamic: $(OBJS) $(LIBRARY_PATH)/$(LIBRARY_NAME).so
@echo "[LD ] $@"
- @$(LD) $(CFLAGS) $(LDFLAGS) $^ $(LOCALLDLIBS) $(LDLIBS) -o $@
+ @$(LD) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@
-$(OBJS): $(SRCS) $(DEPDIR)/%.d
- @echo "[C ] $*"
+$(OBJDIR)/%.o: $(SRC_PATH)/%.c $(DEPDIR)/%.d
+ @echo "[C ] $(notdir $*)"
@$(CC) $(DEPFLAGS) $(CFLAGS) -c $< -o $@
@$(POSTCOMPILE)
include $(wildcard $(patsubst %,$(DEPDIR)/%.d,$(basename $(SRCS))))
-$(LIBOBJS): $(LIBSRCS) $(DEPDIR)/%.d
- @echo "[C ] $*"
- @$(CC) $(DEPFLAGS) $(CFLAGS) -c $< -o $@
+$(OBJDIR)/%.o: $(LIBRARY_PATH)/%.c $(DEPDIR)/%.d
+ @echo "[C ] $(notdir $*)"
+ @$(CC) $(DEPFLAGS) $(LIBCFLAGS) -c $< -o $@
@$(POSTCOMPILE)
include $(wildcard $(patsubst %,$(DEPDIR)/%.d,$(basename $(LIBSRCS))))
.PRECIOUS: $(DEPDIR)/%.d
+#FIXME: add an install target
+
clean:
@echo "[CLN]"
-@rm -r $(BUILDDIR)