# (C) Copyright 2000-2002
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
-# See file CREDITS for list of people who contributed to this
-# project.
+# SPDX-License-Identifier: GPL-2.0+
#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License as
-# published by the Free Software Foundation; either version 2 of
-# the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
-# MA 02111-1307 USA
-#
-
-CROSS_COMPILE ?= arm-linux-
ifndef CONFIG_STANDALONE_LOAD_ADDR
-ifeq ($(SOC),omap3)
+ifneq ($(CONFIG_OMAP_COMMON),)
CONFIG_STANDALONE_LOAD_ADDR = 0x80300000
else
CONFIG_STANDALONE_LOAD_ADDR = 0xc100000
endif
endif
-# Support generic board on ARM
-__HAVE_ARCH_GENERIC_BOARD := y
+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 += -DCONFIG_ARM -D__ARM__
+# LLVM support
+LLVMS_RELFLAGS := $(call cc-option,-mllvm,) \
+ $(call cc-option,-target arm-none-eabi,) \
+ $(call cc-option,-arm-use-movt=0,)
+PLATFORM_RELFLAGS += $(LLVM_RELFLAGS)
+
+PLATFORM_CPPFLAGS += -D__ARM__
# Choose between ARM/Thumb instruction sets
ifeq ($(CONFIG_SYS_THUMB_BUILD),y)
-PF_CPPFLAGS_ARM := $(call cc-option, -mthumb -mthumb-interwork,\
+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,)\
$(call cc-option,-mno-thumb-interwork,)\
)
# Only test once
ifneq ($(CONFIG_SPL_BUILD),y)
-ALL-$(CONFIG_SYS_THUMB_BUILD) += checkthumb
+ifeq ($(CONFIG_SYS_THUMB_BUILD),y)
+archprepare: checkthumb
+
+checkthumb:
+ @if test "$(call cc-name)" = "gcc" -a \
+ "$(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,
# 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.
-ifdef CONFIG_SPL_BUILD
-PLATFORM_LIBS := $(SPLTREE)/arch/arm/lib/eabi_compat.o \
- $(filter-out %/arch/arm/lib/eabi_compat.o, $(PLATFORM_LIBS))
-else
-PLATFORM_LIBS := $(OBJTREE)/arch/arm/lib/eabi_compat.o \
- $(filter-out %/arch/arm/lib/eabi_compat.o, $(PLATFORM_LIBS))
-endif
+PLATFORM_LIBS := arch/arm/lib/eabi_compat.o \
+ $(filter-out arch/arm/lib/eabi_compat.o, $(PLATFORM_LIBS))
endif
# needed for relocation
-ifndef CONFIG_NAND_SPL
LDFLAGS_u-boot += -pie
-endif
#
# FIXME: binutils versions < 2.22 have a bug in the assembler where
PLATFORM_RELFLAGS += -fno-optimize-sibling-calls
endif
endif
+
+ifneq ($(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)
+PLATFORM_CPPFLAGS += $(call cc-option, -fno-pic)
+endif
+
+# limit ourselves to the sections we want in the .bin.
+ifdef CONFIG_ARM64
+OBJCOPYFLAGS += -j .text -j .rodata -j .data -j .u_boot_list -j .rela.dyn
+else
+OBJCOPYFLAGS += -j .text -j .secure_text -j .secure_data -j .rodata -j .hash \
+ -j .data -j .got -j .got.plt -j .u_boot_list -j .rel.dyn
+endif
+
+ifdef CONFIG_OF_EMBED
+OBJCOPYFLAGS += -j .dtb.init.rodata
+endif
+
+ifdef CONFIG_EFI_LOADER
+OBJCOPYFLAGS += -j .efi_runtime -j .efi_runtime_rel
+endif
+
+ifneq ($(CONFIG_IMX_CONFIG),)
+ifdef CONFIG_SPL
+ifndef CONFIG_SPL_BUILD
+ALL-y += SPL
+endif
+else
+ifeq ($(CONFIG_OF_SEPARATE),y)
+ALL-y += u-boot-dtb.imx
+else
+ALL-y += u-boot.imx
+endif
+endif
+ifneq ($(CONFIG_VF610),)
+ALL-y += u-boot.vyb
+endif
+endif