e073bc9484
Automatically generate dependency files for all sources so changes in headers are picked up automatically. Use one dependency file for each source file, since that allows to create them without using external tools (except the compiler of course). Change-Id: I246c1ceb525692547af22a2e32c4bab0c11507e1
158 lines
5 KiB
Makefile
158 lines
5 KiB
Makefile
# __________ __ ___.
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# Open \______ \ ____ ____ | | _\_ |__ _______ ___
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# Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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# Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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# Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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# \/ \/ \/ \/ \/
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# libtools.make
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#
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# Common Makefile for tools used by Rockbox Utility.
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# Provides rules for building as library, universal library (OS X) and
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# standalone binary.
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#
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# LIBSOURCES is a list of files to build the lib
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# SOURCES is a list of files to build for the main binary
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# EXTRADEPS is a list of make targets dependencies
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#
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ifndef V
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SILENT = @
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endif
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# Get directory this Makefile is in for relative paths.
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TOP := $(dir $(lastword $(MAKEFILE_LIST)))
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ifeq ($(OS),Windows_NT)
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mkdir = if not exist $(subst /,\,$(1)) mkdir $(subst /,\,$(1))
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else
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mkdir = mkdir -p $(1)
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endif
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# overwrite for releases
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APPVERSION ?= $(shell $(TOP)/../tools/version.sh $(TOP)/..)
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CFLAGS += -DVERSION=\"$(APPVERSION)\"
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TARGET_DIR ?= $(abspath .)/
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NATIVECC ?= gcc
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CC ?= gcc
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CPPDEFINES := $(shell echo foo | $(CROSS)$(CC) -dM -E -)
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# use POSIX/C99 printf on windows
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CFLAGS += -D__USE_MINGW_ANSI_STDIO=1
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BINARY = $(OUTPUT)
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# when building a Windows binary add the correct file suffix
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ifeq ($(findstring CYGWIN,$(CPPDEFINES)),CYGWIN)
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BINARY = $(OUTPUT).exe
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CFLAGS+=-mno-cygwin
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COMPILETARGET = cygwin
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else
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ifeq ($(findstring MINGW,$(CPPDEFINES)),MINGW)
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BINARY = $(OUTPUT).exe
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COMPILETARGET = mingw
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else
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ifeq ($(findstring APPLE,$(CPPDEFINES)),APPLE)
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COMPILETARGET = darwin
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LDOPTS += $(LDOPTS_OSX)
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else
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COMPILETARGET = posix
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endif
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endif
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endif
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$(info Compiler creates $(COMPILETARGET) binaries)
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# OS X specifics. Needs to consider cross compiling for Windows.
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ifeq ($(findstring APPLE,$(CPPDEFINES)),APPLE)
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# when building libs for OS X build for both i386 and ppc at the same time.
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# This creates fat objects, and ar can only create the archive but not operate
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# on it. As a result the ar call must NOT use the u (update) flag.
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CFLAGS += -arch ppc -arch i386
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# building against SDK 10.4 is not compatible with gcc-4.2 (default on newer Xcode)
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# might need adjustment for older Xcode.
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CC = gcc-4.0
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CFLAGS += -isysroot /Developer/SDKs/MacOSX10.4u.sdk -mmacosx-version-min=10.4
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NATIVECC = gcc-4.0
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endif
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WINDRES = windres
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BUILD_DIR ?= $(TARGET_DIR)build$(COMPILETARGET)
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ifdef RBARCH
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CFLAGS += -arch $(RBARCH)
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OBJDIR = $(abspath $(BUILD_DIR)/$(RBARCH))/
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else
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OBJDIR = $(abspath $(BUILD_DIR))/
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endif
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all: $(BINARY)
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OBJS := $(patsubst %.c,%.o,$(addprefix $(OBJDIR),$(notdir $(SOURCES))))
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LIBOBJS := $(patsubst %.c,%.o,$(addprefix $(OBJDIR),$(notdir $(LIBSOURCES))))
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# create dependency files. Make sure to use the same prefix as with OBJS!
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$(foreach src,$(SOURCES) $(LIBSOURCES),$(eval $(addprefix $(OBJDIR),$(subst .c,.o,$(notdir $(src)))): $(src)))
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$(foreach src,$(SOURCES) $(LIBSOURCES),$(eval $(addprefix $(OBJDIR),$(subst .c,.d,$(notdir $(src)))): $(src)))
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DEPS = $(addprefix $(OBJDIR),$(subst .c,.d,$(notdir $(SOURCES) $(LIBSOURCES))))
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-include $(DEPS)
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# additional link dependencies for the standalone executable
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# extra dependencies: libucl
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LIBUCL = libucl$(RBARCH).a
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$(LIBUCL): $(OBJDIR)$(LIBUCL)
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$(OBJDIR)$(LIBUCL):
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$(SILENT)$(MAKE) -C $(TOP)/../tools/ucl/src TARGET_DIR=$(OBJDIR) $@
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# building the standalone executable
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$(BINARY): $(OBJS) $(EXTRADEPS) $(addprefix $(OBJDIR),$(EXTRALIBOBJS))
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@echo LD $@
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$(SILENT)$(call mkdir,$(dir $@))
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# EXTRADEPS need to be built into OBJDIR.
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$(SILENT)$(CROSS)$(CC) $(CFLAGS) $(LDOPTS) -o $(BINARY) \
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$(OBJS) $(addprefix $(OBJDIR),$(EXTRADEPS)) \
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$(addprefix $(OBJDIR),$(EXTRALIBOBJS))
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# common rules
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$(OBJDIR)%.o:
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@echo CC $<
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$(SILENT)$(call mkdir,$(dir $@))
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$(SILENT)$(CROSS)$(CC) $(CFLAGS) -c -o $@ $<
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# lib rules
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lib$(OUTPUT)$(RBARCH).a: $(TARGET_DIR)lib$(OUTPUT)$(RBARCH).a
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lib$(OUTPUT)$(RBARCH): $(TARGET_DIR)lib$(OUTPUT)$(RBARCH).a
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$(TARGET_DIR)lib$(OUTPUT)$(RBARCH).a: $(LIBOBJS) \
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$(addprefix $(OBJDIR),$(EXTRALIBOBJS))
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# rules to build a DLL. Only works for W32 as target (i.e. MinGW toolchain)
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dll: $(OUTPUT).dll
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$(OUTPUT).dll: $(TARGET_DIR)$(OUTPUT).dll
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$(TARGET_DIR)$(OUTPUT).dll: $(LIBOBJS) $(addprefix $(OBJDIR),$(EXTRALIBOBJS))
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@echo DLL $(notdir $@)
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$(SILENT)$(call mkdir,$(dir $@))
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$(SILENT)$(CROSS)$(CC) $(CFLAGS) -shared -o $@ $^ \
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-Wl,--output-def,$(TARGET_DIR)$(OUTPUT).def
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# create lib file from objects
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$(TARGET_DIR)lib$(OUTPUT)$(RBARCH).a: $(LIBOBJS) $(addprefix $(OBJDIR),$(EXTRALIBOBJS))
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@echo AR $(notdir $@)
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$(SILENT)$(call mkdir,$(dir $@))
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$(SILENT)$(AR) rcs $@ $^
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clean:
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rm -f $(OBJS) $(OUTPUT) $(TARGET_DIR)lib$(OUTPUT)*.a $(OUTPUT).dmg
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rm -rf $(OUTPUT)-* i386 ppc $(OBJDIR)
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%.d:
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$(SILENT)$(call mkdir,$(BUILD_DIR))
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$(SILENT)$(CC) -MG -MM -MT $(subst .d,.o,$@) $(CFLAGS) -o $(BUILD_DIR)/$(notdir $@) $<
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# extra tools
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BIN2C = $(TOP)/tools/bin2c
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$(BIN2C):
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$(MAKE) -C $(TOP)/tools
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# OS X specifics
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$(OUTPUT).dmg: $(OUTPUT)
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@echo DMG $@
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$(SILENT)$(call mkdir,$(OUTPUT)-dmg))
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$(SILENT)cp -p $(OUTPUT) $(OUTPUT)-dmg
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$(SILENT)hdiutil create -srcfolder $(OUTPUT)-dmg $@
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