mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-30 22:08:52 +09:00
8137af19e7
ARM64 uses the newer RELA-style relocations rather than the older REL. RELA relocations have an addend in the relocation struct, rather than expecting the loader to read a value from the location to be updated. While this is beneficial for ordinary program loading, it's problematic for U-Boot because the location to be updated starts out with zero, rather than a pre-relocation value. Since we need to be able to run C code before relocation, we need a tool to apply the relocations at build time. In theory this tool is applicable to other newer architectures (mainly 64-bit), but currently the only relocations it supports are for arm64, and it assumes a 64-bit little-endian target. If the latter limitation is ever to be changed, we'll need a way to tell the tool what format the image is in. Eventually this may be replaced by a tool that uses libelf or similar and operates directly on the ELF file. I've written some code for such an approach but libelf does not make it easy to poke addresses by memory address (rather than by section), and I was hesitant to write code to manually parse the program headers and do the update outside of libelf (or to iterate over sections) -- especially since it wouldn't get test coverage on things like binaries with multiple PT_LOAD segments. This should be good enough for now to let the manual relocation stuff be removed from the arm64 patches. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: David Feng <fenghua@phytium.com.cn>
299 lines
8.5 KiB
Makefile
299 lines
8.5 KiB
Makefile
#
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# (C) Copyright 2000-2006
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# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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#
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# SPDX-License-Identifier: GPL-2.0+
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#
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TOOLSUBDIRS = kernel-doc
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#
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# Include this after HOSTOS HOSTARCH check
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# so that we can act intelligently.
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#
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include $(TOPDIR)/config.mk
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#
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# toolchains targeting win32 generate .exe files
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#
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ifneq (,$(findstring WIN32 ,$(shell $(HOSTCC) -E -dM -xc /dev/null)))
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SFX = .exe
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else
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SFX =
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endif
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# Enable all the config-independent tools
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ifneq ($(HOST_TOOLS_ALL),)
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CONFIG_LCD_LOGO = y
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CONFIG_CMD_LOADS = y
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CONFIG_CMD_NET = y
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CONFIG_XWAY_SWAP_BYTES = y
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CONFIG_NETCONSOLE = y
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CONFIG_SHA1_CHECK_UB_IMG = y
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endif
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# Merge all the different vars for envcrc into one
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ENVCRC-$(CONFIG_ENV_IS_EMBEDDED) = y
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ENVCRC-$(CONFIG_ENV_IS_IN_DATAFLASH) = y
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ENVCRC-$(CONFIG_ENV_IS_IN_EEPROM) = y
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ENVCRC-$(CONFIG_ENV_IS_IN_FLASH) = y
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ENVCRC-$(CONFIG_ENV_IS_IN_ONENAND) = y
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ENVCRC-$(CONFIG_ENV_IS_IN_NAND) = y
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ENVCRC-$(CONFIG_ENV_IS_IN_NVRAM) = y
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ENVCRC-$(CONFIG_ENV_IS_IN_SPI_FLASH) = y
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CONFIG_BUILD_ENVCRC ?= $(ENVCRC-y)
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# Generated executable files
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BIN_FILES-$(CONFIG_LCD_LOGO) += bmp_logo$(SFX)
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BIN_FILES-$(CONFIG_VIDEO_LOGO) += bmp_logo$(SFX)
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BIN_FILES-$(CONFIG_BUILD_ENVCRC) += envcrc$(SFX)
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BIN_FILES-$(CONFIG_CMD_NET) += gen_eth_addr$(SFX)
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BIN_FILES-$(CONFIG_CMD_LOADS) += img2srec$(SFX)
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BIN_FILES-$(CONFIG_XWAY_SWAP_BYTES) += xway-swap-bytes$(SFX)
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BIN_FILES-y += mkenvimage$(SFX)
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BIN_FILES-y += mkimage$(SFX)
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BIN_FILES-$(CONFIG_EXYNOS5250) += mk$(BOARD)spl$(SFX)
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BIN_FILES-$(CONFIG_EXYNOS5420) += mk$(BOARD)spl$(SFX)
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BIN_FILES-$(CONFIG_MX23) += mxsboot$(SFX)
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BIN_FILES-$(CONFIG_MX28) += mxsboot$(SFX)
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BIN_FILES-$(CONFIG_NETCONSOLE) += ncb$(SFX)
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BIN_FILES-$(CONFIG_SHA1_CHECK_UB_IMG) += ubsha1$(SFX)
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BIN_FILES-$(CONFIG_KIRKWOOD) += kwboot$(SFX)
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BIN_FILES-y += proftool(SFX)
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BIN_FILES-$(CONFIG_STATIC_RELA) += relocate-rela$(SFX)
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# Source files which exist outside the tools directory
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EXT_OBJ_FILES-$(CONFIG_BUILD_ENVCRC) += common/env_embedded.o
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EXT_OBJ_FILES-y += common/image.o
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EXT_OBJ_FILES-$(CONFIG_FIT) += common/image-fit.o
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EXT_OBJ_FILES-y += common/image-sig.o
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EXT_OBJ_FILES-y += lib/crc32.o
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EXT_OBJ_FILES-y += lib/md5.o
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EXT_OBJ_FILES-y += lib/sha1.o
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# Source files located in the tools directory
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NOPED_OBJ_FILES-y += aisimage.o
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NOPED_OBJ_FILES-y += default_image.o
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NOPED_OBJ_FILES-y += fit_image.o
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NOPED_OBJ_FILES-y += image-host.o
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NOPED_OBJ_FILES-y += imximage.o
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NOPED_OBJ_FILES-y += kwbimage.o
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NOPED_OBJ_FILES-y += mkenvimage.o
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NOPED_OBJ_FILES-y += mkimage.o
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NOPED_OBJ_FILES-y += mxsimage.o
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NOPED_OBJ_FILES-y += omapimage.o
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NOPED_OBJ_FILES-y += os_support.o
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NOPED_OBJ_FILES-y += pblimage.o
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NOPED_OBJ_FILES-y += proftool.o
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NOPED_OBJ_FILES-y += ublimage.o
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NOPED_OBJ_FILES-y += relocate-rela.o
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OBJ_FILES-$(CONFIG_BUILD_ENVCRC) += envcrc.o
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OBJ_FILES-$(CONFIG_CMD_LOADS) += img2srec.o
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OBJ_FILES-$(CONFIG_CMD_NET) += gen_eth_addr.o
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OBJ_FILES-$(CONFIG_EXYNOS_SPL) += mkexynosspl.o
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OBJ_FILES-$(CONFIG_KIRKWOOD) += kwboot.o
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OBJ_FILES-$(CONFIG_LCD_LOGO) += bmp_logo.o
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OBJ_FILES-$(CONFIG_MX23) += mxsboot.o
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OBJ_FILES-$(CONFIG_MX28) += mxsboot.o
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OBJ_FILES-$(CONFIG_NETCONSOLE) += ncb.o
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OBJ_FILES-$(CONFIG_SHA1_CHECK_UB_IMG) += ubsha1.o
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OBJ_FILES-$(CONFIG_SMDK5250) += mkexynosspl.o
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OBJ_FILES-$(CONFIG_VIDEO_LOGO) += bmp_logo.o
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OBJ_FILES-$(CONFIG_XWAY_SWAP_BYTES) += xway-swap-bytes.o
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# Don't build by default
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#ifeq ($(ARCH),ppc)
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#BIN_FILES-y += mpc86x_clk$(SFX)
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#OBJ_FILES-y += mpc86x_clk.o
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#endif
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# Flattened device tree objects
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LIBFDT_OBJ_FILES-y += fdt.o
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LIBFDT_OBJ_FILES-y += fdt_ro.o
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LIBFDT_OBJ_FILES-y += fdt_rw.o
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LIBFDT_OBJ_FILES-y += fdt_strerror.o
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LIBFDT_OBJ_FILES-y += fdt_wip.o
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# RSA objects
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RSA_OBJ_FILES-$(CONFIG_FIT_SIGNATURE) += rsa-sign.o
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# Generated LCD/video logo
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LOGO_H = $(OBJTREE)/include/bmp_logo.h
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LOGO_DATA_H = $(OBJTREE)/include/bmp_logo_data.h
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LOGO-$(CONFIG_LCD_LOGO) += $(LOGO_H)
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LOGO-$(CONFIG_LCD_LOGO) += $(LOGO_DATA_H)
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LOGO-$(CONFIG_VIDEO_LOGO) += $(LOGO_H)
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LOGO-$(CONFIG_VIDEO_LOGO) += $(LOGO_DATA_H)
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# Generic logo
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ifeq ($(LOGO_BMP),)
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LOGO_BMP= logos/denx.bmp
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# Use board logo and fallback to vendor
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ifneq ($(wildcard logos/$(BOARD).bmp),)
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LOGO_BMP= logos/$(BOARD).bmp
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else
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ifneq ($(wildcard logos/$(VENDOR).bmp),)
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LOGO_BMP= logos/$(VENDOR).bmp
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endif
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endif
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endif # !LOGO_BMP
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# now $(obj) is defined
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HOSTSRCS += $(addprefix $(SRCTREE)/,$(EXT_OBJ_FILES-y:.o=.c))
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HOSTSRCS += $(addprefix $(SRCTREE)/tools/,$(OBJ_FILES-y:.o=.c))
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HOSTSRCS += $(addprefix $(SRCTREE)/lib/libfdt/,$(LIBFDT_OBJ_FILES-y:.o=.c))
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HOSTSRCS += $(addprefix $(SRCTREE)/lib/rsa/,$(RSA_OBJ_FILES-y:.o=.c))
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BINS := $(addprefix $(obj),$(sort $(BIN_FILES-y)))
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LIBFDT_OBJS := $(addprefix $(obj),$(LIBFDT_OBJ_FILES-y))
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RSA_OBJS := $(addprefix $(obj),$(RSA_OBJ_FILES-y))
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# We cannot check CONFIG_FIT_SIGNATURE here since it is not set on the host
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FIT_SIG_OBJ_FILES := image-sig.o
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FIT_SIG_OBJS := $(addprefix $(obj),$(FIT_SIG_OBJ_FILES))
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HOSTOBJS := $(addprefix $(obj),$(OBJ_FILES-y))
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NOPEDOBJS := $(addprefix $(obj),$(NOPED_OBJ_FILES-y))
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#
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# Use native tools and options
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# Define __KERNEL_STRICT_NAMES to prevent typedef overlaps
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# Define _GNU_SOURCE to obtain the getline prototype from stdio.h
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#
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HOSTCPPFLAGS = -include $(SRCTREE)/include/libfdt_env.h \
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-idirafter $(SRCTREE)/include \
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-idirafter $(SRCTREE)/arch/$(ARCH)/include \
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-idirafter $(OBJTREE)/include \
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-I $(SRCTREE)/lib/libfdt \
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-I $(SRCTREE)/tools \
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-DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE) \
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-DUSE_HOSTCC \
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-D__KERNEL_STRICT_NAMES \
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-D_GNU_SOURCE
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all: $(obj).depend $(BINS) $(LOGO-y) subdirs
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$(obj)bin2header$(SFX): $(obj)bin2header.o
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$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
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$(HOSTSTRIP) $@
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$(obj)bmp_logo$(SFX): $(obj)bmp_logo.o
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$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
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$(HOSTSTRIP) $@
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$(obj)proftool(SFX): $(obj)proftool.o
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$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
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$(HOSTSTRIP) $@
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$(obj)envcrc$(SFX): $(obj)crc32.o $(obj)env_embedded.o $(obj)envcrc.o $(obj)sha1.o
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$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
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$(obj)gen_eth_addr$(SFX): $(obj)gen_eth_addr.o
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$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
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$(HOSTSTRIP) $@
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$(obj)img2srec$(SFX): $(obj)img2srec.o
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$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
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$(HOSTSTRIP) $@
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$(obj)xway-swap-bytes$(SFX): $(obj)xway-swap-bytes.o
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$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
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$(HOSTSTRIP) $@
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$(obj)mkenvimage$(SFX): $(obj)crc32.o $(obj)mkenvimage.o \
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$(obj)os_support.o
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$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
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$(HOSTSTRIP) $@
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$(obj)mkimage$(SFX): $(obj)aisimage.o \
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$(FIT_SIG_OBJS) \
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$(obj)crc32.o \
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$(obj)default_image.o \
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$(obj)fit_image.o \
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$(obj)image-fit.o \
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$(obj)image-host.o \
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$(obj)image.o \
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$(obj)imximage.o \
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$(obj)kwbimage.o \
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$(obj)md5.o \
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$(obj)mkimage.o \
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$(obj)mxsimage.o \
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$(obj)omapimage.o \
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$(obj)os_support.o \
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$(obj)pblimage.o \
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$(obj)sha1.o \
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$(obj)ublimage.o \
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$(LIBFDT_OBJS) \
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$(RSA_OBJS)
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$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^ $(HOSTLIBS)
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$(HOSTSTRIP) $@
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$(obj)mk$(BOARD)spl$(SFX): $(obj)mkexynosspl.o
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$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
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$(HOSTSTRIP) $@
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$(obj)mpc86x_clk$(SFX): $(obj)mpc86x_clk.o
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$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
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$(HOSTSTRIP) $@
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$(obj)mxsboot$(SFX): $(obj)mxsboot.o
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$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
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$(HOSTSTRIP) $@
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$(obj)ncb$(SFX): $(obj)ncb.o
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$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
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$(HOSTSTRIP) $@
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$(obj)ubsha1$(SFX): $(obj)os_support.o $(obj)sha1.o $(obj)ubsha1.o
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$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
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$(obj)kwboot$(SFX): $(obj)kwboot.o
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$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
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$(HOSTSTRIP) $@
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$(obj)relocate-rela$(SFX): $(obj)relocate-rela.o
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$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
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$(HOSTSTRIP) $@
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# Some of the tool objects need to be accessed from outside the tools directory
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$(obj)%.o: $(SRCTREE)/common/%.c
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$(HOSTCC) -g $(HOSTCFLAGS_NOPED) -c -o $@ $<
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$(obj)%.o: $(SRCTREE)/lib/%.c
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$(HOSTCC) -g $(HOSTCFLAGS) -c -o $@ $<
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$(obj)%.o: $(SRCTREE)/lib/libfdt/%.c
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$(HOSTCC) -g $(HOSTCFLAGS_NOPED) -c -o $@ $<
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$(obj)%.o: $(SRCTREE)/lib/rsa/%.c
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$(HOSTCC) -g $(HOSTCFLAGS_NOPED) -c -o $@ $<
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subdirs:
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ifeq ($(TOOLSUBDIRS),)
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@:
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else
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@for dir in $(TOOLSUBDIRS) ; do \
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$(MAKE) \
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HOSTOS=$(HOSTOS) \
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HOSTARCH=$(HOSTARCH) \
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-C $$dir || exit 1 ; \
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done
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endif
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$(LOGO_H): $(obj)bmp_logo $(LOGO_BMP)
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$(obj)./bmp_logo --gen-info $(LOGO_BMP) > $@
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$(LOGO_DATA_H): $(obj)bmp_logo $(LOGO_BMP)
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$(obj)./bmp_logo --gen-data $(LOGO_BMP) > $@
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#########################################################################
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# defines $(obj).depend target
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include $(SRCTREE)/rules.mk
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sinclude $(obj).depend
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#########################################################################
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