rockbox/firmware/firmware.make
Aidan MacDonald 6f4b6a8078 make: remove asm.make and use asm/SOURCES directly
asm.make replaces source files listed in asm/SOURCES with
a corresponding .c or .S file under firmware/asm/${ARCH}.
This makes it difficult to handle differences within one
architecture, eg. different instruction sets or versions
of the architecture.

Get rid of asm.make, and instead use the preprocessor to
select the architecture-specific sources directly from
asm/SOURCES. This is slightly more verbose but is more
flexible.

Change-Id: Id2a484794d5d951b7ba7b54a552de6960414fa45
2026-01-08 16:41:57 +00:00

71 lines
2.5 KiB
Makefile

# __________ __ ___.
# Open \______ \ ____ ____ | | _\_ |__ _______ ___
# Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
# Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
# Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
# \/ \/ \/ \/ \/
# $Id$
#
INCLUDES += -I$(FIRMDIR) -I$(FIRMDIR)/export -I$(FIRMDIR)/drivers \
-I$(FIRMDIR)/include -I$(FIRMDIR)/kernel/include
ifndef APP_TYPE
INCLUDES += -I$(FIRMDIR)/libc/include
endif
ifneq ($(filter reggen,$(TOOLSET)),)
include $(FIRMDIR)/reggen/reggen.make
endif
FIRMLIB_SRC += $(call preprocess, $(FIRMDIR)/asm/SOURCES)
FIRMLIB_SRC += $(call preprocess, $(FIRMDIR)/SOURCES)
FIRMLIB_OBJ := $(call c2obj, $(FIRMLIB_SRC))
FIRMLIB_OBJ += $(BUILDDIR)/sysfont.o
OTHER_SRC += $(FIRMLIB_SRC)
FIRMLIB = $(BUILDDIR)/firmware/libfirmware.a
ifeq ($(SYSFONT),)
SYSFONT = 08-Schumacher-Clean
endif
SYSFONTX = $(ROOTDIR)/fonts/$(SYSFONT).bdf
CLEANOBJS += $(BUILDDIR)/sysfont.* $(BUILDDIR)/version.*
# Limits for the built-in sysfont: ASCII for bootloaders, ISO8859-1 for normal builds
ifneq (,$(findstring -DBOOTLOADER,$(EXTRA_DEFINES)))
MAXCHAR = 127
else
MAXCHAR = 255
endif
$(FIRMLIB): $(FIRMLIB_OBJ)
$(SILENT)$(shell rm -f $@)
$(call PRINTS,AR $(@F))$(AR) rcs $@ $^ >/dev/null
$(BUILDDIR)/sysfont.h: $(SYSFONTX) $(TOOLS) $(BUILDDIR)/firmware/common/config.o
$(call PRINTS,CONVBDF $(subst $(ROOTDIR)/,,$<))$(TOOLSDIR)/convbdf -l $(MAXCHAR) -h -o $@ $<
$(BUILDDIR)/sysfont.o: $(SYSFONTX) $(BUILDDIR)/sysfont.h
$(call PRINTS,CONVBDF $(subst $(ROOTDIR)/,,$<))$(TOOLSDIR)/convbdf -l $(MAXCHAR) -c -o $(BUILDDIR)/sysfont.c $<
$(call PRINTS,CC $(subst $(ROOTDIR)/,,$(BUILDDIR)/sysfont.c))$(CC) $(CFLAGS) -c $(BUILDDIR)/sysfont.c -o $@
ifdef USE_LTO
$(BUILDDIR)/firmware/asm/%.o: CFLAGS += -fno-lto
$(BUILDDIR)/firmware/kernel/thread.o: CFLAGS += -fno-lto
endif
# GNU make (at least) has a bug/feature that exported variable are not available
# in the shell function (but are in recipe). Thus we need to explicitely pass
# the VERSION environement variable
SVNVERSION:=$(shell VERSION='$(VERSION)' $(TOOLSDIR)/version.sh $(ROOTDIR))
OLDSVNVERSION:=$(shell grep 'RBVERSION' $(BUILDDIR)/rbversion.h 2>/dev/null|cut -d '"' -f 2 || echo "NOREVISION")
CORE_LIBS:=$(FIRMLIB)
ifneq ($(SVNVERSION),$(OLDSVNVERSION))
.PHONY: $(BUILDDIR)/rbversion.h
endif
$(BUILDDIR)/rbversion.h:
$(call PRINTS,GEN $(@F))$(TOOLSDIR)/genversion.sh $(BUILDDIR) $(SVNVERSION)