288 lines
7.6 KiB
Makefile
Executable File
288 lines
7.6 KiB
Makefile
Executable File
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ifneq ($(OBJTREE),$(SRCTREE))
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ifeq ($(CURDIR),$(SRCTREE))
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dir :=
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else
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dir := $(subst $(SRCTREE)/,,$(CURDIR))
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endif
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sinclude $(OBJTREE)/include/autoconf.mk
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sinclude $(OBJTREE)/include/config.mk
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export ARCH CPU BOARD VENDOR SOC
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ifneq ($(CONFIG_SPL_BUILD), )
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obj := $(if $(dir),$(splobj)$(dir)/,$(OBJTREE)/)
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else
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ifneq ($(CONFIG_DDR_SCAN_BUILD), )
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obj := $(if $(dir),$(ddr_scan_obj)$(dir)/,$(OBJTREE)/)
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else
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ifneq ($(CONFIG_FDL_BUILD), )
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obj := $(if $(dir),$(fdlobj)$(dir)/,$(OBJTREE)/)
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else
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obj := $(if $(dir),$(OBJTREE)/$(dir)/,$(OBJTREE)/)
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endif
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endif
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endif
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src := $(if $(dir),$(SRCTREE)/$(dir)/,$(SRCTREE)/)
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$(shell mkdir -p $(obj))
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else
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obj :=
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src :=
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endif
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# clean the slate ...
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PLATFORM_RELFLAGS =
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PLATFORM_CPPFLAGS =
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PLATFORM_LDFLAGS =
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#########################################################################
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HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \
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$(HOSTCPPFLAGS)
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HOSTSTRIP = strip
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ifeq ($(HOSTOS),darwin)
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# get major and minor product version (e.g. '10' and '6' for Snow Leopard)
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DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.')
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DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.')
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os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
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$(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
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# Snow Leopards build environment has no longer restrictions as described above
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HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc")
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HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp")
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HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
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else
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HOSTCC = gcc
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endif
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ifeq ($(HOSTOS),cygwin)
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HOSTCFLAGS += -ansi
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endif
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# We build some files with extra pedantic flags to try to minimize things
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# that won't build on some weird host compiler -- though there are lots of
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# exceptions for files that aren't complaint.
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HOSTCFLAGS_NOPED = $(filter-out -pedantic,$(HOSTCFLAGS))
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HOSTCFLAGS += -pedantic
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#########################################################################
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#
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# Option checker (courtesy linux kernel) to ensure
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# only supported compiler options are used
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#
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cc-option = $(shell if $(CC) $(CFLAGS) $(1) -S -o /dev/null -xc /dev/null \
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> /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi ;)
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#
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# Include the make variables (CC, etc...)
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#
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AS = $(CROSS_COMPILE)as
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LD = $(CROSS_COMPILE)ld
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CC = $(CROSS_COMPILE)gcc
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CPP = $(CC) -E
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AR = $(CROSS_COMPILE)ar
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NM = $(CROSS_COMPILE)nm
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LDR = $(CROSS_COMPILE)ldr
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STRIP = $(CROSS_COMPILE)strip
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OBJCOPY = $(CROSS_COMPILE)objcopy
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OBJDUMP = $(CROSS_COMPILE)objdump
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RANLIB = $(CROSS_COMPILE)RANLIB
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#########################################################################
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# Load generated board configuration
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#sinclude $(OBJTREE)/include/autoconf.mk
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# Some architecture config.mk files need to know what CPUDIR is set to,
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# so calculate CPUDIR before including ARCH/SOC/CPU config.mk files.
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# Check if arch/$ARCH/cpu/$CPU exists, otherwise assume arch/$ARCH/cpu contains
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# CPU-specific code.
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CPUDIR=arch/$(ARCH)/cpu/$(CPU)
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ifneq ($(SRCTREE)/$(CPUDIR),$(wildcard $(SRCTREE)/$(CPUDIR)))
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CPUDIR=arch/$(ARCH)/cpu
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endif
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sinclude $(TOPDIR)/arch/$(ARCH)/config.mk # include architecture dependend rules
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sinclude $(TOPDIR)/$(CPUDIR)/config.mk # include CPU specific rules
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ifdef SOC
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sinclude $(TOPDIR)/$(CPUDIR)/$(SOC)/config.mk # include SoC specific rules
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endif
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ifdef VENDOR
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BOARDDIR = $(VENDOR)/$(BOARD)
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else
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BOARDDIR = $(BOARD)
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endif
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ifdef BOARD
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sinclude $(TOPDIR)/board/$(BOARDDIR)/config.mk # include board specific rules
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endif
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#########################################################################
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ifneq (,$(findstring s,$(MAKEFLAGS)))
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ARFLAGS = cr
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else
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ARFLAGS = crv
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endif
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RELFLAGS= $(PLATFORM_RELFLAGS)
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DBGFLAGS= -g #-DDEBUG
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OPTFLAGS= -Os #-fomit-frame-pointer
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OPTFLAGS += -mbranch-protection=none
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OBJCFLAGS += --gap-fill 0xff
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gccincdir := $(shell $(CC) -print-file-name=include)
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CPPFLAGS := $(OPTFLAGS) $(RELFLAGS) -D__KERNEL__
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#$(DBGFLAGS)
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ifeq ($(CONFIG_UFS_SPL), true)
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PLATFORM_CPPFLAGS += -DCONFIG_UFS_BOOT
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endif
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ifeq ($(CONFIG_EMMC_SPL), true)
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PLATFORM_CPPFLAGS += -DCONFIG_EMMC_BOOT
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endif
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ifeq ($(CONFIG_SD_SPL), true)
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PLATFORM_CPPFLAGS += -DCONFIG_SD_CARD_BOOT
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endif
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ifeq ($(CONFIG_NANDC_SPL), true)
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PLATFORM_CPPFLAGS += -DCONFIG_NAND_BOOT
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endif
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ifeq ($(CONFIG_AB_PARTITIONS), true)
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PLATFORM_CPPFLAGS += -DAB_PARTITIONS
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endif
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ifeq ($(CONFIG_UFS_MULTI_LUNS), true)
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PLATFORM_CPPFLAGS += -DCONFIG_UFS_LOGICAL_SET
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endif
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PLATFORM_CPPFLAGS += $(CHIPRAM_SECURE_BOOT_FLAG)
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PLATFORM_CPPFLAGS += $(CHIPRAM_DEBUG_FLAG)
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ifneq ($(OBJTREE),$(SRCTREE))
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CPPFLAGS += -I$(OBJTREE)/include
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endif
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CPPFLAGS += -I$(TOPDIR)/include
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CPPFLAGS += -fno-builtin -ffreestanding -nostdinc \
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-isystem $(gccincdir) $(PLATFORM_CPPFLAGS)
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ifdef BUILD_TAG
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CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes \
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-DBUILD_TAG='"$(BUILD_TAG)"'
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else
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CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes
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endif
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CFLAGS += $(call cc-option,-fno-stack-protector)
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ifneq ($(AP_VERSION), )
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CFLAGS += -DCONFIG_AP_VERSION='"$(AP_VERSION)"'
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endif
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# $(CPPFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
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# option to the assembler.
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AFLAGS_DEBUG :=
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# turn jbsr into jsr for m68k
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ifeq ($(ARCH),m68k)
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ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
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AFLAGS_DEBUG := -Wa,-gstabs,-S
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endif
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endif
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AFLAGS := $(AFLAGS_DEBUG) -D__ASSEMBLY__ $(CPPFLAGS)
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ifneq ($(CONFIG_SPL_BUILD), )
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CFLAGS += -DCONFIG_NAND_SPL
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AFLAGS += -DCONFIG_NAND_SPL
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endif
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ifneq ($(CONFIG_FDL_BUILD), )
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CFLAGS += -DCONFIG_FDL1
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AFLAGS += -DCONFIG_FDL1
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endif
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ifneq ($(CONFIG_DDR_SCAN_BUILD), )
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CFLAGS += -DDDR_SCAN_ENABLE
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endif
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CFLAGS += -g -ffunction-sections -fdata-sections
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ifeq ($(ARCH),x86)
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CFLAGS += -m32 -w
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AFLAGS += -m32 -w
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else
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CFLAGS += -mlittle-endian
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AFLAGS += -mlittle-endian
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endif
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LDFLAGS += -Bstatic -T $(obj)u-boot.lds $(PLATFORM_LDFLAGS)
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# Location of a usable BFD library, where we define "usable" as
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# "built for ${HOST}, supports ${TARGET}". Sensible values are
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# - When cross-compiling: the root of the cross-environment
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# - Linux/ppc (native): /usr
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# - NetBSD/ppc (native): you lose ... (must extract these from the
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# binutils build directory, plus the native and U-Boot include
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# files don't like each other)
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#
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# So far, this is used only by tools/gdb/Makefile.
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ifeq ($(HOSTOS),darwin)
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BFD_ROOT_DIR = /usr/local/tools
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else
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ifeq ($(HOSTARCH),$(ARCH))
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# native
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BFD_ROOT_DIR = /usr
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else
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#BFD_ROOT_DIR = /LinuxPPC/CDK # Linux/i386
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#BFD_ROOT_DIR = /usr/pkg/cross # NetBSD/i386
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BFD_ROOT_DIR = /opt/powerpc
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endif
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endif
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#########################################################################
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export HOSTCC HOSTCFLAGS HOSTLDFLAGS PEDCFLAGS HOSTSTRIP CROSS_COMPILE \
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AS LD CC CPP AR NM STRIP OBJCOPY OBJDUMP MAKE
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export PLATFORM_CPPFLAGS PLATFORM_RELFLAGS CPPFLAGS CFLAGS AFLAGS
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#########################################################################
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# Allow boards to use custom optimize flags on a per dir/file basis
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BCURDIR = $(subst $(SRCTREE)/,,$(CURDIR:$(obj)%=%))
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$(obj)%.s: %.S
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$(CPP) $(AFLAGS) $(AFLAGS_$(BCURDIR)/$(@F)) $(AFLAGS_$(BCURDIR)) \
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-o $@ $<
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$(obj)%.o: %.S
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$(CC) $(AFLAGS) $(AFLAGS_$(BCURDIR)/$(@F)) $(AFLAGS_$(BCURDIR)) \
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-o $@ $< -c
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$(obj)%.o: %.c
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$(CC) $(CFLAGS) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR)) \
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-o $@ $< -c
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$(obj)%.i: %.c
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$(CPP) $(CFLAGS) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR)) \
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-o $@ $< -c
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$(obj)%.s: %.c
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$(CC) $(CFLAGS) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR)) \
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-o $@ $< -c -S
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#########################################################################
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# If the list of objects to link is empty, just create an empty built-in.o
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cmd_link_o_target = $(if $(strip $1),\
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$(LD) -r -o $@ $1 ,\
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rm -f $@; $(AR) rcs $@ )
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#########################################################################
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