# Initialise variables that get added to throughout the various Makefiles
#
MAKEDEPS := Makefile .toolcheck .echocheck
SRCDIRS :=
SRCS :=
NON_AUTO_SRCS :=
DRIVERS :=
ROMS :=
MEDIA :=
NON_AUTO_MEDIA :=
# Grab the central Config file.
#
MAKEDEPS += Config
include Config
# Location to place generated files
#
BIN := bin
# If no architecture is specified in Config or on the command-line,
# use that of the build machine.
#
ifndef ARCH
ARCH := $(shell uname -m | sed -e s,i[3456789]86,i386,)
endif
# handle x86_64 like i386, but set -m32 option for 32bit code only
ifeq ($(ARCH),x86_64)
ARCH := i386
CFLAGS += -m32
ASFLAGS += --32
LDFLAGS += -m elf_i386
endif
# Drag in architecture-specific Config
#
MAKEDEPS += arch/$(ARCH)/Config
include arch/$(ARCH)/Config
# If invoked with no build target, print out a helpfully suggestive
# message.
#
noargs : blib $(BIN)/NIC $(BIN)/gpxe.dsk $(BIN)/gpxe.iso $(BIN)/gpxe.usb
@$(ECHO) '==========================================================='
@$(ECHO)
@$(ECHO) 'To create a bootable floppy, type'
@$(ECHO) ' cat $(BIN)/gpxe.dsk > /dev/fd0'
@$(ECHO) 'where /dev/fd0 is your floppy drive. This will erase any'
@$(ECHO) 'data already on the disk.'
@$(ECHO)
@$(ECHO) 'To create a bootable USB key, type'
@$(ECHO) ' cat $(BIN)/gpxe.usb > /dev/sdX'
@$(ECHO) 'where /dev/sdX is your USB key, and is *not* a real hard'
@$(ECHO) 'disk on your system. This will erase any data already on'
@$(ECHO) 'the USB key.'
@$(ECHO)
@$(ECHO) 'To create a bootable CD-ROM, burn the ISO image '
@$(ECHO) '$(BIN)/gpxe.iso to a blank CD-ROM.'
@$(ECHO)
@$(ECHO) 'These images contain drivers for all supported cards. You'
@$(ECHO) 'can build more customised images, and ROM images, using'
@$(ECHO) ' make bin/<rom-name>.<output-format>'
@$(ECHO)
@$(ECHO) '==========================================================='
# Locations of utilities
#
HOST_CC ?= gcc
CPP ?= gcc -E -Wp,-Wall
RM ?= rm -f
TOUCH ?= touch
MKDIR ?= mkdir
CP ?= cp
ECHO ?= echo
PRINTF ?= printf
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
NM ?= $(CROSS_COMPILE)nm
OBJDUMP ?= $(CROSS_COMPILE)objdump
PARSEROM ?= $(PERL) ./util/parserom.pl
MAKEROM ?= $(PERL) ./util/makerom.pl
MKCONFIG ?= $(PERL) ./util/mkconfig.pl
SYMCHECK ?= $(PERL) ./util/symcheck.pl
SORTOBJDUMP ?= $(PERL) ./util/sortobjdump.pl
NRV2B ?= ./util/nrv2b
ZBIN ?= ./util/zbin
DOXYGEN ?= doxygen
# Common flags
#
CFLAGS += -I include -I arch/$(ARCH)/include -I . -DARCH=$(ARCH)
CFLAGS += -Os -ffreestanding
CFLAGS += -Wall -W
CFLAGS += -g
CFLAGS += $(EXTRA_CFLAGS)
ASFLAGS += $(EXTRA_ASFLAGS)
LDFLAGS += $(EXTRA_LDFLAGS)
ifneq ($(NO_WERROR),1)
CFLAGS += -Werror
endif
# CFLAGS for specific object types
#
CFLAGS_c +=
CFLAGS_S += -DASSEMBLY
# Base object name of the current target
#
OBJECT = $(firstword $(subst ., ,$(@F)))
# 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 = $(CFLAGS_$(OBJECT)) -DOBJECT=$(subst -,_,$(OBJECT))
$(BIN)/%.flags :
@$(ECHO) $(OBJ_CFLAGS)
# Rules for specific object types.
#
COMPILE_c = $(CC) $(CFLAGS) $(CFLAGS_c) $(OBJ_CFLAGS)
RULE_c = $(Q)$(COMPILE_c) -c $< -o $@
RULE_c_to_dbg%.o = $(Q)$(COMPILE_c) -Ddebug_$(OBJECT)=$* -c $< -o $@
RULE_c_to_c = $(Q)$(COMPILE_c) -E -c $< > $@
RULE_c_to_s = $(Q)$(COMPILE_c) -S -g0 -c $< -o $@
PREPROCESS_S = $(CPP) $(CFLAGS) $(CFLAGS_S) $(OBJ_CFLAGS)
ASSEMBLE_S = $(AS) $(ASFLAGS)
RULE_S = $(Q)$(PREPROCESS_S) $< | $(ASSEMBLE_S) -o $@
RULE_S_to_s = $(Q)$(PREPROCESS_S) $< > $@
DEBUG_TARGETS += dbg%.o c s
# SRCDIRS lists all directories containing source files.
#
SRCDIRS += libgcc
SRCDIRS += core
SRCDIRS += proto
SRCDIRS += net net/tcp net/udp
SRCDIRS += image
SRCDIRS += drivers/bus
SRCDIRS += drivers/net
SRCDIRS += drivers/net/e1000
SRCDIRS += drivers/block
SRCDIRS += drivers/scsi
SRCDIRS += drivers/ata
SRCDIRS += drivers/nvs
SRCDIRS += drivers/bitbash
SRCDIRS += drivers/infiniband
SRCDIRS += interface/pxe
SRCDIRS += tests
SRCDIRS += crypto crypto/axtls crypto/matrixssl
SRCDIRS += hci hci/commands hci/tui
SRCDIRS += hci/mucurses hci/mucurses/widgets
SRCDIRS += usr
# NON_AUTO_SRCS lists files that are excluded from the normal
# automatic build system.
#
NON_AUTO_SRCS += core/elf_loader.c
NON_AUTO_SRCS += drivers/net/prism2.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) -s 0 $@
# Some ROMs require specific flags to be passed to makerom.pl
#
MAKEROM_FLAGS_3c503 = -3
# Drag in architecture-specific Makefile
#
MAKEDEPS += arch/$(ARCH)/Makefile
include arch/$(ARCH)/Makefile
# Drag in the automatic build system and other housekeeping functions
MAKEDEPS += Makefile.housekeeping
include Makefile.housekeeping
