# SPDX-License-Identifier: GPL-2.0+
#
-ifeq ($(CROSS_COMPILE),)
-CROSS_COMPILE := arm-linux-
-endif
-
ifndef CONFIG_STANDALONE_LOAD_ADDR
-ifneq ($(CONFIG_OMAP_COMMON),)
+ifneq ($(CONFIG_ARCH_OMAP2PLUS),)
CONFIG_STANDALONE_LOAD_ADDR = 0x80300000
else
CONFIG_STANDALONE_LOAD_ADDR = 0xc100000
endif
endif
+CFLAGS_NON_EFI := -fno-pic -ffixed-r9 -ffunction-sections -fdata-sections
+CFLAGS_EFI := -fpic -fshort-wchar
+
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,))
-# Support generic board on ARM
-__HAVE_ARCH_GENERIC_BOARD := y
+# LLVM support
+LLVMS_RELFLAGS := $(call cc-option,-mllvm,) \
+ $(call cc-option,-target arm-none-eabi,) \
+ $(call cc-option,-arm-use-movt=0,)
+PLATFORM_RELFLAGS += $(LLVM_RELFLAGS)
-PLATFORM_CPPFLAGS += -DCONFIG_ARM -D__ARM__
+PLATFORM_CPPFLAGS += -D__ARM__
+
+ifdef CONFIG_ARM64
+PLATFORM_ELFFLAGS += -B aarch64 -O elf64-littleaarch64
+else
+PLATFORM_ELFFLAGS += -B arm -O elf32-littlearm
+endif
# Choose between ARM/Thumb instruction sets
-ifeq ($(CONFIG_SYS_THUMB_BUILD),y)
-PF_CPPFLAGS_ARM := $(call cc-option, -mthumb -mthumb-interwork,\
+ifeq ($(CONFIG_$(SPL_)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,)\
$(call cc-option,-mno-thumb-interwork,)\
)
endif
# Only test once
-ifneq ($(CONFIG_SPL_BUILD),y)
-ifeq ($(CONFIG_SYS_THUMB_BUILD),y)
-archprepare: checkthumb
+ifeq ($(CONFIG_$(SPL_)SYS_THUMB_BUILD),y)
+archprepare: checkthumb checkgcc6
checkthumb:
- @if test "$(call cc-version)" -lt "0404"; then \
+ @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
+else
+archprepare: checkgcc6
endif
+checkgcc6:
+ @if test "$(call cc-name)" = "gcc" -a \
+ "$(call cc-version)" -lt "0600"; then \
+ echo -n '*** Your GCC is older than 6.0 and will not be '; \
+ echo 'supported starting in v2018.01.'; \
+ fi
+
+
# Try if EABI is supported, else fall back to old API,
# i. e. for example:
# - with ELDK 4.2 (EABI supported), use:
#
# http://sourceware.org/bugzilla/show_bug.cgi?id=12532
#
-ifeq ($(CONFIG_SYS_THUMB_BUILD),y)
+ifeq ($(CONFIG_$(SPL_)SYS_THUMB_BUILD),y)
ifeq ($(GAS_BUG_12532),)
export GAS_BUG_12532:=$(shell if [ $(call binutils-version) -lt 0222 ] ; \
then echo y; else echo n; fi)
# 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 += $(call cc-option, -fno-pic)
endif
# limit ourselves to the sections we want in the .bin.
ifdef CONFIG_ARM64
-OBJCOPYFLAGS += -j .text -j .rodata -j .data -j .u_boot_list -j .rela.dyn
+OBJCOPYFLAGS += -j .text -j .secure_text -j .secure_data -j .rodata -j .data \
+ -j .u_boot_list -j .rela.dyn -j .got -j .got.plt
else
-OBJCOPYFLAGS += -j .text -j .rodata -j .hash -j .data -j .got.plt -j .u_boot_list -j .rel.dyn
+OBJCOPYFLAGS += -j .text -j .secure_text -j .secure_data -j .rodata -j .hash \
+ -j .data -j .got -j .got.plt -j .u_boot_list -j .rel.dyn
+endif
+
+ifdef CONFIG_OF_EMBED
+OBJCOPYFLAGS += -j .dtb.init.rodata
+endif
+
+ifdef CONFIG_EFI_LOADER
+OBJCOPYFLAGS += -j .efi_runtime -j .efi_runtime_rel
endif
ifneq ($(CONFIG_IMX_CONFIG),)
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
+
+EFI_LDS := elf_arm_efi.lds
+EFI_CRT0 := crt0_arm_efi.o
+EFI_RELOC := reloc_arm_efi.o