diff options
Diffstat (limited to 'src/Makefile')
| -rw-r--r-- | src/Makefile | 152 |
1 files changed, 141 insertions, 11 deletions
diff --git a/src/Makefile b/src/Makefile index afb1618e..7d7d76d4 100644 --- a/src/Makefile +++ b/src/Makefile @@ -1,15 +1,145 @@ -# Override ARCH here or on the command line -# ARCH=i386 -# Additionally you can supply extra compilation arguments, e.g. for x86_64 -# EXTRA_CFLAGS=-m32 -# EXTRA_ASFLAGS=--32 -# EXTRA_LDFLAGS=-m elf_i386 +# Initialise variables that get added to throughout the various Makefiles +# +MAKEDEPS := Makefile .toolcheck +SRCDIRS := +SRCS := +NON_AUTO_SRCS := +DRIVERS := +ROMS := +MEDIA := +NON_AUTO_MEDIA := + +# Grab the central Config file. +# +MAKEDEPS += Config +include Config + +# If no architecture is specified in Config or on the command-line, +# use that of the build machine. +# ifndef ARCH -ARCH:=$(shell uname -m | sed -e s,i[3456789]86,i386,) +ARCH := $(shell uname -m | sed -e s,i[3456789]86,i386,) endif -MAKEDEPS:= -SUFFIXES:= -include Config +# Drag in architecture-specific Config +# +MAKEDEPS += arch/$(ARCH)/Config include arch/$(ARCH)/Config -include Makefile.main + +# If invoked with no build target, print out a helpfully suggestive +# message. +# +noargs : blib + @echo '====================================================' + @echo 'No target specified. To specify a target, do: ' + @echo + @echo ' $(MAKE) bin/<rom-name>.<output-format> ' + @echo + @echo 'where <output-format> is one of [z]{$(MEDIA) }' + @echo + @echo 'or: ' + @echo + @echo ' $(MAKE) all<output-format>s' + @echo + @echo 'to generate all possible images of format <output-format>' + @echo + @echo 'For example, ' + @echo + @echo ' make allzroms ' + @echo + @echo 'will generate all possible .zrom (rom burnable) images, and' + @echo + @echo ' make allzdsks' + @echo + @echo 'will generate all possible .zdsk (bootable floppy) images, or' + @echo + @echo '====================================================' + @exit 1 + +# Locations of utilities +# +HOST_CC ?= gcc +CPP ?= gcc -E -Wp,-Wall +RM ?= rm -f +TOUCH ?= touch +MKDIR ?= mkdir +PERL ?= /usr/bin/perl +CC ?= $(CROSS_COMPILE)gcc +AS ?= $(CROSS_COMPILE)as +LD ?= $(CROSS_COMPILE)ld +SIZE ?= $(CROSS_COMPILE)size +AR ?= $(CROSS_COMPILE)ar +RANLIB ?= $(CROSS_COMPILE)ranlib +OBJCOPY ?= $(CROSS_COMPILE)objcopy +PARSEROM ?= $(PERL) ./util/parserom.pl +MAKEROM ?= $(PERL) ./util/makerom.pl +NRV2B ?= ./util/nrv2b + +# Location to place generated files +# +BIN ?= bin + +# Library containing all compiled objects +BLIB = $(BIN)/blib.a + +# Common flags +# +CFLAGS += -I include -I arch/$(ARCH)/include -DARCH=$(ARCH) +CFLAGS += -Os -ffreestanding +CFLAGS += -Wall -W -Wno-format +CFLAGS += $(EXTRA_CFLAGS) +ASFLAGS += $(EXTRA_ASFLAGS) +LDFLAGS += $(EXTRA_LDFLAGS) + +# CFLAGS for specific object types +# +CFLAGS_c += +CFLAGS_S += -DASSEMBLY + +# CFLAGS for specific object files. You can define +# e.g. CFLAGS_rtl8139, and have those flags automatically used when +# compiling bin/rtl8139.o. +# +OBJ_CFLAGS = $(CFLAGS_$(basename $(@F))) \ + -DOBJECT=$(subst -,_,$(basename $(@F))) +$(BIN)/%.flags : + @echo $(OBJ_CFLAGS) + +# Rules for specific object types. +# +COMPILE_c = $(CC) $(CFLAGS) $(CFLAGS_c) $(OBJ_CFLAGS) +RULE_c = $(COMPILE_c) -c $< -o $@ +RULE_c_to_s = $(COMPILE_c) -S -c $< -o $@ +RULE_c_to_c = $(COMPILE_c) -E -c $< > $@ + +PREPROCESS_S = $(CPP) $(CFLAGS) $(CFLAGS_S) $(OBJ_CFLAGS) +ASSEMBLE_S = $(AS) $(ASFLAGS) +RULE_S = $(PREPROCESS_S) $< | $(ASSEMBLE_S) -o $@ +RULE_S_to_s = $(PREPROCESS_S) $< > $@ + +DEBUG_TARGETS += c s + +# SRCDIRS lists all directories containing source files. +# +SRCDIRS += core drivers/net drivers/disk + +# NON_AUTO_SRCS lists files that are excluded from the normal +# automatic build system. +# +NON_AUTO_SRCS += core/elf_loader.c + +# Rules for finalising files. TGT_MAKEROM_FLAGS is defined as part of +# the automatic build system and varies by target; it includes the +# "-p 0x1234,0x5678" string to set the PCI IDs. +# +FINALISE_rom = $(MAKEROM) $(MAKEROM_FLAGS) $(TGT_MAKEROM_FLAGS) \ + -i$(IDENT) $@ + +# Drag in architecture-specific Makefile +# +MAKEDEPS += arch/$(ARCH)/Makefile +include arch/$(ARCH)/Makefile + +# Drag in the automatic build system and other housekeeping functions +MAKEDEPS += Makefile.housekeeping +include Makefile.housekeeping |