mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-16 09:48:16 +00:00
5a942a1527
Commit 47ed5dd0 dropped the .got section from U-Boot binaries. This is needed
for some relocations, and causes failures if missing. Add it back.
Signed-off-by: Simon Glass <sjg@chromium.org>
135 lines
3.7 KiB
Makefile
135 lines
3.7 KiB
Makefile
#
|
|
# (C) Copyright 2000-2002
|
|
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
|
#
|
|
# SPDX-License-Identifier: GPL-2.0+
|
|
#
|
|
|
|
ifndef CONFIG_STANDALONE_LOAD_ADDR
|
|
ifneq ($(CONFIG_OMAP_COMMON),)
|
|
CONFIG_STANDALONE_LOAD_ADDR = 0x80300000
|
|
else
|
|
CONFIG_STANDALONE_LOAD_ADDR = 0xc100000
|
|
endif
|
|
endif
|
|
|
|
LDFLAGS_FINAL += --gc-sections
|
|
PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections \
|
|
-fno-common -ffixed-r9
|
|
PLATFORM_RELFLAGS += $(call cc-option, -msoft-float) \
|
|
$(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,))
|
|
|
|
PLATFORM_CPPFLAGS += -D__ARM__
|
|
|
|
# Choose between ARM/Thumb instruction sets
|
|
ifeq ($(CONFIG_SYS_THUMB_BUILD),y)
|
|
AFLAGS_IMPLICIT_IT := $(call as-option,-Wa$(comma)-mimplicit-it=always)
|
|
PF_CPPFLAGS_ARM := $(AFLAGS_IMPLICIT_IT) \
|
|
$(call cc-option, -mthumb -mthumb-interwork,\
|
|
$(call cc-option,-marm,)\
|
|
$(call cc-option,-mno-thumb-interwork,)\
|
|
)
|
|
else
|
|
PF_CPPFLAGS_ARM := $(call cc-option,-marm,) \
|
|
$(call cc-option,-mno-thumb-interwork,)
|
|
endif
|
|
|
|
# Only test once
|
|
ifneq ($(CONFIG_SPL_BUILD),y)
|
|
ifeq ($(CONFIG_SYS_THUMB_BUILD),y)
|
|
archprepare: checkthumb
|
|
|
|
checkthumb:
|
|
@if test "$(call cc-version)" -lt "0404"; then \
|
|
echo -n '*** Your GCC does not produce working '; \
|
|
echo 'binaries in THUMB mode.'; \
|
|
echo '*** Your board is configured for THUMB mode.'; \
|
|
false; \
|
|
fi
|
|
endif
|
|
endif
|
|
|
|
# Try if EABI is supported, else fall back to old API,
|
|
# i. e. for example:
|
|
# - with ELDK 4.2 (EABI supported), use:
|
|
# -mabi=aapcs-linux
|
|
# - with ELDK 4.1 (gcc 4.x, no EABI), use:
|
|
# -mabi=apcs-gnu
|
|
# - with ELDK 3.1 (gcc 3.x), use:
|
|
# -mapcs-32
|
|
PF_CPPFLAGS_ABI := $(call cc-option,\
|
|
-mabi=aapcs-linux,\
|
|
$(call cc-option,\
|
|
-mapcs-32,\
|
|
$(call cc-option,\
|
|
-mabi=apcs-gnu,\
|
|
)\
|
|
)\
|
|
)
|
|
PLATFORM_CPPFLAGS += $(PF_CPPFLAGS_ARM) $(PF_CPPFLAGS_ABI)
|
|
|
|
# For EABI, make sure to provide raise()
|
|
ifneq (,$(findstring -mabi=aapcs-linux,$(PLATFORM_CPPFLAGS)))
|
|
# This file is parsed many times, so the string may get added multiple
|
|
# times. Also, the prefix needs to be different based on whether
|
|
# CONFIG_SPL_BUILD is defined or not. 'filter-out' the existing entry
|
|
# before adding the correct one.
|
|
PLATFORM_LIBS := arch/arm/lib/eabi_compat.o \
|
|
$(filter-out arch/arm/lib/eabi_compat.o, $(PLATFORM_LIBS))
|
|
endif
|
|
|
|
# needed for relocation
|
|
LDFLAGS_u-boot += -pie
|
|
|
|
#
|
|
# FIXME: binutils versions < 2.22 have a bug in the assembler where
|
|
# branches to weak symbols can be incorrectly optimized in thumb mode
|
|
# to a short branch (b.n instruction) that won't reach when the symbol
|
|
# gets preempted
|
|
#
|
|
# http://sourceware.org/bugzilla/show_bug.cgi?id=12532
|
|
#
|
|
ifeq ($(CONFIG_SYS_THUMB_BUILD),y)
|
|
ifeq ($(GAS_BUG_12532),)
|
|
export GAS_BUG_12532:=$(shell if [ $(call binutils-version) -lt 0222 ] ; \
|
|
then echo y; else echo n; fi)
|
|
endif
|
|
ifeq ($(GAS_BUG_12532),y)
|
|
PLATFORM_RELFLAGS += -fno-optimize-sibling-calls
|
|
endif
|
|
endif
|
|
|
|
ifneq ($(CONFIG_SPL_BUILD),y)
|
|
# Check that only R_ARM_RELATIVE relocations are generated.
|
|
ALL-y += checkarmreloc
|
|
# The movt / movw can hardcode 16 bit parts of the addresses in the
|
|
# instruction. Relocation is not supported for that case, so disable
|
|
# such usage by requiring word relocations.
|
|
PLATFORM_CPPFLAGS += $(call cc-option, -mword-relocations)
|
|
endif
|
|
|
|
# limit ourselves to the sections we want in the .bin.
|
|
ifdef CONFIG_ARM64
|
|
OBJCOPYFLAGS += -j .text -j .rodata -j .data -j .u_boot_list -j .rela.dyn
|
|
else
|
|
OBJCOPYFLAGS += -j .text -j .secure_text -j .rodata -j .hash -j .data -j \
|
|
.got -j .got.plt -j .u_boot_list -j .rel.dyn
|
|
endif
|
|
|
|
ifdef CONFIG_OF_EMBED
|
|
OBJCOPYFLAGS += -j .dtb.init.rodata
|
|
endif
|
|
|
|
ifneq ($(CONFIG_IMX_CONFIG),)
|
|
ifdef CONFIG_SPL
|
|
ifndef CONFIG_SPL_BUILD
|
|
ALL-y += SPL
|
|
endif
|
|
else
|
|
ifeq ($(CONFIG_OF_SEPARATE),y)
|
|
ALL-y += u-boot-dtb.imx
|
|
else
|
|
ALL-y += u-boot.imx
|
|
endif
|
|
endif
|
|
endif
|