2 # (C) Copyright 2000-2002
3 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 # SPDX-License-Identifier: GPL-2.0+
8 ifndef CONFIG_STANDALONE_LOAD_ADDR
9 ifneq ($(CONFIG_OMAP_COMMON),)
10 CONFIG_STANDALONE_LOAD_ADDR = 0x80300000
12 CONFIG_STANDALONE_LOAD_ADDR = 0xc100000
16 LDFLAGS_FINAL += --gc-sections
17 PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections \
18 -fno-common -ffixed-r9
19 PLATFORM_RELFLAGS += $(call cc-option, -msoft-float) \
20 $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,))
22 # Support generic board on ARM
23 __HAVE_ARCH_GENERIC_BOARD := y
25 PLATFORM_CPPFLAGS += -DCONFIG_ARM -D__ARM__
27 # Choose between ARM/Thumb instruction sets
28 ifeq ($(CONFIG_SYS_THUMB_BUILD),y)
29 PF_CPPFLAGS_ARM := $(call cc-option, -mthumb -mthumb-interwork,\
30 $(call cc-option,-marm,)\
31 $(call cc-option,-mno-thumb-interwork,)\
34 PF_CPPFLAGS_ARM := $(call cc-option,-marm,) \
35 $(call cc-option,-mno-thumb-interwork,)
39 ifneq ($(CONFIG_SPL_BUILD),y)
40 ifeq ($(CONFIG_SYS_THUMB_BUILD),y)
41 archprepare: checkthumb
44 @if test "$(call cc-version)" -lt "0404"; then \
45 echo -n '*** Your GCC does not produce working '; \
46 echo 'binaries in THUMB mode.'; \
47 echo '*** Your board is configured for THUMB mode.'; \
53 # Try if EABI is supported, else fall back to old API,
55 # - with ELDK 4.2 (EABI supported), use:
57 # - with ELDK 4.1 (gcc 4.x, no EABI), use:
59 # - with ELDK 3.1 (gcc 3.x), use:
61 PF_CPPFLAGS_ABI := $(call cc-option,\
70 PLATFORM_CPPFLAGS += $(PF_CPPFLAGS_ARM) $(PF_CPPFLAGS_ABI)
72 # For EABI, make sure to provide raise()
73 ifneq (,$(findstring -mabi=aapcs-linux,$(PLATFORM_CPPFLAGS)))
74 # This file is parsed many times, so the string may get added multiple
75 # times. Also, the prefix needs to be different based on whether
76 # CONFIG_SPL_BUILD is defined or not. 'filter-out' the existing entry
77 # before adding the correct one.
78 PLATFORM_LIBS := arch/arm/lib/eabi_compat.o \
79 $(filter-out arch/arm/lib/eabi_compat.o, $(PLATFORM_LIBS))
82 # needed for relocation
83 LDFLAGS_u-boot += -pie
86 # FIXME: binutils versions < 2.22 have a bug in the assembler where
87 # branches to weak symbols can be incorrectly optimized in thumb mode
88 # to a short branch (b.n instruction) that won't reach when the symbol
91 # http://sourceware.org/bugzilla/show_bug.cgi?id=12532
93 ifeq ($(CONFIG_SYS_THUMB_BUILD),y)
94 ifeq ($(GAS_BUG_12532),)
95 export GAS_BUG_12532:=$(shell if [ $(call binutils-version) -lt 0222 ] ; \
96 then echo y; else echo n; fi)
98 ifeq ($(GAS_BUG_12532),y)
99 PLATFORM_RELFLAGS += -fno-optimize-sibling-calls
103 ifneq ($(CONFIG_SPL_BUILD),y)
104 # Check that only R_ARM_RELATIVE relocations are generated.
105 ALL-y += checkarmreloc
106 # The movt / movw can hardcode 16 bit parts of the addresses in the
107 # instruction. Relocation is not supported for that case, so disable
108 # such usage by requiring word relocations.
109 PLATFORM_CPPFLAGS += $(call cc-option, -mword-relocations)
112 # limit ourselves to the sections we want in the .bin.
114 OBJCOPYFLAGS += -j .text -j .rodata -j .data -j .u_boot_list -j .rela.dyn
116 OBJCOPYFLAGS += -j .text -j .rodata -j .hash -j .data -j .got.plt -j .u_boot_list -j .rel.dyn
119 ifneq ($(CONFIG_IMX_CONFIG),)
121 ifndef CONFIG_SPL_BUILD
125 ifeq ($(CONFIG_OF_SEPARATE),y)
126 ALL-y += u-boot-dtb.imx