nes-proj/Makefile.include
Jim Paris 03293b60ad Fix a makefile dependency with libraries
Using the implicit rules for libraries leads to problems if one of the
objects fails to build, but the others are still OK.  Just make all
library rules explicit to avoid this.
2010-09-28 16:01:15 -04:00

146 lines
4.0 KiB
Makefile

# Hey Emacs, this is a -*- makefile -*-
# Set up a default target in case the user didn't already have one.
# "all" means to build .bin for all defined targets for the currently-defined board
all: $(addsuffix _$(BOARD).bin, $(TARGETS) $(TARGETS_WITH_ROM_VARS))
.PHONY: all
# Pretty print output. Use "make Q=" to see full commands
Q ?= @
define pretty
@printf "%8s %s\n" "$1" "$2"
endef
# Don't delete intermediate targets
.SECONDARY:
#####
# Tools and flags
# Set up cross compiler and toolchain definitions.
CROSS_COMPILE ?= arm-linux-
AS = $(CROSS_COMPILE)as
LD = $(CROSS_COMPILE)ld
CC = $(CROSS_COMPILE)gcc
CPP = $(CC) -E
AR = $(CROSS_COMPILE)ar
NM = $(CROSS_COMPILE)nm
STRIP = $(CROSS_COMPILE)strip
OBJCOPY = $(CROSS_COMPILE)objcopy
OBJDUMP = $(CROSS_COMPILE)objdump
RANLIB = $(CROSS_COMPILE)ranlib
# Build CFLAGS and prepend it to user-supplied CFLAGS
CFLAGS_PLAT ?= -march=armv4t -mtune=arm7tdmi-s -mlong-calls -msoft-float \
-mthumb-interwork -fno-strict-aliasing -fno-common -ffixed-r8 \
-ffunction-sections -ffreestanding -fno-builtin
CFLAGS_WARN ?= -Wcast-align -Wall -Wstrict-prototypes -Wextra
CFLAGS_OPT ?= -Os
CFLAGS_DEBUG ?= -g -DDEBUG -Werror
CFLAGS_MISC ?= -pipe
CFLAGS := $(CFLAGS_PLAT) $(CFLAGS_WARN) $(CFLAGS_OPT) $(CFLAGS_DEBUG) $(CFLAGS_MISC) $(CFLAGS)
# Thumb flags, used for building most objects
CFLAGS_THUMB ?= -mthumb -mcallee-super-interworking
# Linker flags
LINKERSCRIPT ?= $(MC1322X)/mc1322x.lds
LDFLAGS ?= -T $(LINKERSCRIPT) -nostartfiles -static -export-dynamic -u_start -Wl,-Map=$(@:.elf=.map)
# Assembler flags
AFLAGS ?= -Wa,-gstabs $(CFLAGS)
# Misc tool options
OBJCOPYFLAGS ?= --gap-fill=0xff
ARFLAGS = cr
#####
include $(MC1322X)/board/Makefile.board
include $(MC1322X)/lib/Makefile.lib
include $(MC1322X)/src/Makefile.src
#####
# Rule for building ELF files. We use both a wildcard rule that links
# $(SRCLIB) as well as target-specific rules that link $(SRCLIB_ROMVARS)
# Normal targets (wildcard rule):
%_$(BOARD).elf: $(OBJDIR)/%.o $(TARGET_OBJ) $(SRCLIB)
$(call pretty,LINK,$@)
$Q$(CC) $(LDFLAGS) -o $@ -Wl,--start-group $^ -lm -Wl,--end-group
# Targets that need space for rom variables:
define build_elf_rule
$(1)_$$(BOARD).elf: $$(OBJDIR)/$(1).o $$(TARGET_OBJ) $$(SRCLIB_ROMVARS)
$$(call pretty,LINK (romvars),$$@)
$$Q$$(CC) $$(LDFLAGS) -o $$@ -Wl,--start-group $$^ -lm -Wl,--end-group
endef
$(foreach t, $(TARGETS_WITH_ROM_VARS), $(eval $(call build_elf_rule,$(t))))
# Generic rules
%.srec: %.elf
$(call pretty,OBJCOPY,$@)
$Q$(OBJCOPY) $(OBJCOPYFLAGS) -O srec $< $@
%.ihex: %.elf
$(call pretty,OBJCOPY,$@)
$Q$(OBJCOPY) $(OBJCOPYFLAGS) -O ihex $< $@
%.bin: %.elf
$(call pretty,OBJCOPY,$@)
$Q$(OBJCOPY) $(OBJCOPYFLAGS) -O binary $< $@
%.dis: %.elf
$(call pretty,OBJDUMP,$@)
$Q$(OBJDUMP) -Sd $< > $@ || rm -f $@
%.dis: %.o
$(call pretty,OBJDUMP,$@)
$Q$(OBJDUMP) -d $< > $@ || rm -f $@
%.o: %.c $(FORCE_C_DEPENDS)
$(call pretty,CC,$@)
$Q$(CC) $(CFLAGS) $(CFLAGS_THUMB) -MMD -c -o $@ $<
@$(FINALIZE_DEPENDENCY)
%.o: %.S
$(call pretty,AS,$@)
$Q$(CC) $(AFLAGS) -MMD -c -o $@ $<
@$(FINALIZE_DEPENDENCY)
# Fix the dependencies generated for a particular target .o
# See http://make.paulandlesley.org/autodep.html#advanced
define FINALIZE_DEPENDENCY
cp $(@:.o=.d) $(@:.o=.$$$$); \
sed -e 's/#.*//' -e 's/^[^:]*: *//' -e 's/ *\\$$//' \
-e '/^$$/ d' -e 's/$$/ :/' < $(@:.o=.$$$$) >> $(@:.o=.d); \
rm -f $(@:.o=.$$$$)
endef
clean::
rm -f *.{o,d,a,bin,elf,ihex,srec,dis,map,bak} *~
.PHONY: clean
##############################
# If no single board was specified, invoke make recursively for each
# board in $(BOARDS), or $(ALL_BOARDS) if that wasn't specified either.
# This is at the end so that it can override all other targets.
ifndef BOARD
ifneq ($(MAKECMDGOALS),clean)
.DEFAULT_GOAL=mc1322x-default
BOARDS ?= $(ALL_BOARDS)
define build_board
@echo "Building for board: $(1)"
@$(MAKE) --no-print-directory BOARD=$(1) $(2)
endef
$(MAKECMDGOALS):
$(foreach b, $(BOARDS), $(call build_board,$(b),$@))
mc1322x-default:
$(foreach b, $(BOARDS), $(call build_board,$(b),))
endif
endif