Tom Rini | 10e4779 | 2018-05-06 17:58:06 -0400 | [diff] [blame] | 1 | # SPDX-License-Identifier: GPL-2.0+ |
wdenk | 39f0e5f | 2002-08-14 20:30:46 +0000 | [diff] [blame] | 2 | # |
| 3 | # (C) Copyright 2000-2002 |
| 4 | # Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
wdenk | 39f0e5f | 2002-08-14 20:30:46 +0000 | [diff] [blame] | 5 | |
Wolfgang Denk | 33a5734 | 2011-02-04 14:25:17 +0100 | [diff] [blame] | 6 | ifndef CONFIG_STANDALONE_LOAD_ADDR |
Masahiro Yamada | 6e1288c | 2017-04-25 13:10:11 +0900 | [diff] [blame] | 7 | ifneq ($(CONFIG_ARCH_OMAP2PLUS),) |
Wolfgang Denk | 33a5734 | 2011-02-04 14:25:17 +0100 | [diff] [blame] | 8 | CONFIG_STANDALONE_LOAD_ADDR = 0x80300000 |
Mike Frysinger | 5b66044 | 2009-09-03 23:12:47 -0400 | [diff] [blame] | 9 | else |
Wolfgang Denk | 33a5734 | 2011-02-04 14:25:17 +0100 | [diff] [blame] | 10 | CONFIG_STANDALONE_LOAD_ADDR = 0xc100000 |
Mike Frysinger | 5b66044 | 2009-09-03 23:12:47 -0400 | [diff] [blame] | 11 | endif |
| 12 | endif |
| 13 | |
Joel Peshkin | 369d87a | 2021-04-11 11:21:58 +0200 | [diff] [blame] | 14 | CFLAGS_NON_EFI := -fno-pic -ffixed-r9 -ffunction-sections -fdata-sections \ |
| 15 | -fstack-protector-strong |
Simon Glass | fc03fb9 | 2016-11-07 08:47:10 -0700 | [diff] [blame] | 16 | CFLAGS_EFI := -fpic -fshort-wchar |
| 17 | |
Marek Behún | 701bc2e | 2021-05-20 13:24:24 +0200 | [diff] [blame] | 18 | ifneq ($(CONFIG_LTO)$(CONFIG_USE_PRIVATE_LIBGCC),yy) |
Tom Rini | efc9072 | 2013-04-25 07:40:22 +0000 | [diff] [blame] | 19 | LDFLAGS_FINAL += --gc-sections |
Marek Behún | 701bc2e | 2021-05-20 13:24:24 +0200 | [diff] [blame] | 20 | endif |
Marek Behún | 2a9079e | 2021-05-20 13:24:23 +0200 | [diff] [blame] | 21 | |
| 22 | ifndef CONFIG_LTO |
| 23 | PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections |
| 24 | endif |
| 25 | |
| 26 | PLATFORM_RELFLAGS += -fno-common -ffixed-r9 |
Masahiro Yamada | b8a2625 | 2014-01-15 11:00:45 +0900 | [diff] [blame] | 27 | PLATFORM_RELFLAGS += $(call cc-option, -msoft-float) \ |
| 28 | $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) |
Tom Rini | efc9072 | 2013-04-25 07:40:22 +0000 | [diff] [blame] | 29 | |
Tom Rini | 1088ec1 | 2016-03-16 19:55:55 -0400 | [diff] [blame] | 30 | # LLVM support |
Tom Rini | da62bb9 | 2018-04-22 19:15:03 -0400 | [diff] [blame] | 31 | LLVM_RELFLAGS := $(call cc-option,-mllvm,) \ |
| 32 | $(call cc-option,-mno-movt,) |
Tom Rini | 1088ec1 | 2016-03-16 19:55:55 -0400 | [diff] [blame] | 33 | PLATFORM_RELFLAGS += $(LLVM_RELFLAGS) |
| 34 | |
Masahiro Yamada | 4869aee | 2014-07-30 14:08:23 +0900 | [diff] [blame] | 35 | PLATFORM_CPPFLAGS += -D__ARM__ |
Jean-Christophe PLAGNIOL-VILLARD | 7580b86 | 2009-05-08 20:24:12 +0200 | [diff] [blame] | 36 | |
Álvaro Fernández Rojas | 1f86ebd | 2017-04-20 20:36:25 +0200 | [diff] [blame] | 37 | ifdef CONFIG_ARM64 |
| 38 | PLATFORM_ELFFLAGS += -B aarch64 -O elf64-littleaarch64 |
| 39 | else |
| 40 | PLATFORM_ELFFLAGS += -B arm -O elf32-littlearm |
| 41 | endif |
| 42 | |
Aneesh V | b8e4080 | 2012-03-08 07:20:19 +0000 | [diff] [blame] | 43 | # Choose between ARM/Thumb instruction sets |
Tom Rini | 1c640a6 | 2017-03-18 09:01:44 -0400 | [diff] [blame] | 44 | ifeq ($(CONFIG_$(SPL_)SYS_THUMB_BUILD),y) |
Stefan Agner | a257f2e | 2014-12-18 18:10:33 +0100 | [diff] [blame] | 45 | AFLAGS_IMPLICIT_IT := $(call as-option,-Wa$(comma)-mimplicit-it=always) |
| 46 | PF_CPPFLAGS_ARM := $(AFLAGS_IMPLICIT_IT) \ |
| 47 | $(call cc-option, -mthumb -mthumb-interwork,\ |
Aneesh V | b8e4080 | 2012-03-08 07:20:19 +0000 | [diff] [blame] | 48 | $(call cc-option,-marm,)\ |
| 49 | $(call cc-option,-mno-thumb-interwork,)\ |
| 50 | ) |
| 51 | else |
| 52 | PF_CPPFLAGS_ARM := $(call cc-option,-marm,) \ |
| 53 | $(call cc-option,-mno-thumb-interwork,) |
| 54 | endif |
Wolfgang Denk | d47f486 | 2009-08-17 13:17:29 +0200 | [diff] [blame] | 55 | |
Tom Rini | 20eef6c | 2012-03-16 06:34:35 +0000 | [diff] [blame] | 56 | # Only test once |
Tom Rini | 1c640a6 | 2017-03-18 09:01:44 -0400 | [diff] [blame] | 57 | ifeq ($(CONFIG_$(SPL_)SYS_THUMB_BUILD),y) |
Tom Rini | e125013 | 2017-04-17 09:18:00 -0400 | [diff] [blame] | 58 | archprepare: checkthumb checkgcc6 |
Masahiro Yamada | 54ead2c | 2014-03-05 17:49:22 +0900 | [diff] [blame] | 59 | |
| 60 | checkthumb: |
Tom Rini | 7aaf277 | 2016-01-19 20:39:02 -0500 | [diff] [blame] | 61 | @if test "$(call cc-name)" = "gcc" -a \ |
| 62 | "$(call cc-version)" -lt "0404"; then \ |
Masahiro Yamada | 54ead2c | 2014-03-05 17:49:22 +0900 | [diff] [blame] | 63 | echo -n '*** Your GCC does not produce working '; \ |
| 64 | echo 'binaries in THUMB mode.'; \ |
| 65 | echo '*** Your board is configured for THUMB mode.'; \ |
| 66 | false; \ |
| 67 | fi |
Tom Rini | e125013 | 2017-04-17 09:18:00 -0400 | [diff] [blame] | 68 | else |
| 69 | archprepare: checkgcc6 |
Masahiro Yamada | 54ead2c | 2014-03-05 17:49:22 +0900 | [diff] [blame] | 70 | endif |
Tom Rini | 20eef6c | 2012-03-16 06:34:35 +0000 | [diff] [blame] | 71 | |
Tom Rini | e125013 | 2017-04-17 09:18:00 -0400 | [diff] [blame] | 72 | checkgcc6: |
| 73 | @if test "$(call cc-name)" = "gcc" -a \ |
| 74 | "$(call cc-version)" -lt "0600"; then \ |
Tom Rini | cfa4c71 | 2017-12-02 20:11:31 -0500 | [diff] [blame] | 75 | echo '*** Your GCC is older than 6.0 and is not supported'; \ |
| 76 | false; \ |
Tom Rini | e125013 | 2017-04-17 09:18:00 -0400 | [diff] [blame] | 77 | fi |
| 78 | |
| 79 | |
Wolfgang Denk | d47f486 | 2009-08-17 13:17:29 +0200 | [diff] [blame] | 80 | # Try if EABI is supported, else fall back to old API, |
| 81 | # i. e. for example: |
| 82 | # - with ELDK 4.2 (EABI supported), use: |
Aneesh V | b8e4080 | 2012-03-08 07:20:19 +0000 | [diff] [blame] | 83 | # -mabi=aapcs-linux |
Wolfgang Denk | d47f486 | 2009-08-17 13:17:29 +0200 | [diff] [blame] | 84 | # - with ELDK 4.1 (gcc 4.x, no EABI), use: |
Aneesh V | b8e4080 | 2012-03-08 07:20:19 +0000 | [diff] [blame] | 85 | # -mabi=apcs-gnu |
Wolfgang Denk | d47f486 | 2009-08-17 13:17:29 +0200 | [diff] [blame] | 86 | # - with ELDK 3.1 (gcc 3.x), use: |
Aneesh V | b8e4080 | 2012-03-08 07:20:19 +0000 | [diff] [blame] | 87 | # -mapcs-32 |
Wolfgang Denk | 9209ed5 | 2011-11-01 20:54:02 +0000 | [diff] [blame] | 88 | PF_CPPFLAGS_ABI := $(call cc-option,\ |
Aneesh V | b8e4080 | 2012-03-08 07:20:19 +0000 | [diff] [blame] | 89 | -mabi=aapcs-linux,\ |
Wolfgang Denk | 9209ed5 | 2011-11-01 20:54:02 +0000 | [diff] [blame] | 90 | $(call cc-option,\ |
| 91 | -mapcs-32,\ |
Wolfgang Denk | d47f486 | 2009-08-17 13:17:29 +0200 | [diff] [blame] | 92 | $(call cc-option,\ |
Wolfgang Denk | 9209ed5 | 2011-11-01 20:54:02 +0000 | [diff] [blame] | 93 | -mabi=apcs-gnu,\ |
| 94 | )\ |
Aneesh V | b8e4080 | 2012-03-08 07:20:19 +0000 | [diff] [blame] | 95 | )\ |
Wolfgang Denk | 9209ed5 | 2011-11-01 20:54:02 +0000 | [diff] [blame] | 96 | ) |
| 97 | PLATFORM_CPPFLAGS += $(PF_CPPFLAGS_ARM) $(PF_CPPFLAGS_ABI) |
Wolfgang Denk | d47f486 | 2009-08-17 13:17:29 +0200 | [diff] [blame] | 98 | |
| 99 | # For EABI, make sure to provide raise() |
| 100 | ifneq (,$(findstring -mabi=aapcs-linux,$(PLATFORM_CPPFLAGS))) |
Aneesh V | ad35628 | 2011-07-19 05:51:41 +0000 | [diff] [blame] | 101 | # This file is parsed many times, so the string may get added multiple |
| 102 | # times. Also, the prefix needs to be different based on whether |
| 103 | # CONFIG_SPL_BUILD is defined or not. 'filter-out' the existing entry |
| 104 | # before adding the correct one. |
Masahiro Yamada | 933c7e0 | 2014-02-27 22:40:34 +0900 | [diff] [blame] | 105 | PLATFORM_LIBS := arch/arm/lib/eabi_compat.o \ |
| 106 | $(filter-out arch/arm/lib/eabi_compat.o, $(PLATFORM_LIBS)) |
Wolfgang Denk | d47f486 | 2009-08-17 13:17:29 +0200 | [diff] [blame] | 107 | endif |
Albert Aribaud | 6d1fcb1 | 2010-10-11 13:13:28 +0200 | [diff] [blame] | 108 | |
Albert Aribaud | 6d1fcb1 | 2010-10-11 13:13:28 +0200 | [diff] [blame] | 109 | # needed for relocation |
Stefano Babic | 8b378e1 | 2011-01-27 06:03:49 +0000 | [diff] [blame] | 110 | LDFLAGS_u-boot += -pie |
Allen Martin | a8c7aea | 2012-07-18 13:45:53 +0000 | [diff] [blame] | 111 | |
| 112 | # |
| 113 | # FIXME: binutils versions < 2.22 have a bug in the assembler where |
| 114 | # branches to weak symbols can be incorrectly optimized in thumb mode |
| 115 | # to a short branch (b.n instruction) that won't reach when the symbol |
| 116 | # gets preempted |
| 117 | # |
| 118 | # http://sourceware.org/bugzilla/show_bug.cgi?id=12532 |
| 119 | # |
Tom Rini | 1c640a6 | 2017-03-18 09:01:44 -0400 | [diff] [blame] | 120 | ifeq ($(CONFIG_$(SPL_)SYS_THUMB_BUILD),y) |
Allen Martin | a8c7aea | 2012-07-18 13:45:53 +0000 | [diff] [blame] | 121 | ifeq ($(GAS_BUG_12532),) |
| 122 | export GAS_BUG_12532:=$(shell if [ $(call binutils-version) -lt 0222 ] ; \ |
| 123 | then echo y; else echo n; fi) |
| 124 | endif |
| 125 | ifeq ($(GAS_BUG_12532),y) |
| 126 | PLATFORM_RELFLAGS += -fno-optimize-sibling-calls |
| 127 | endif |
| 128 | endif |
Albert ARIBAUD | 446dd12 | 2013-06-11 14:17:30 +0200 | [diff] [blame] | 129 | |
Albert ARIBAUD | 446dd12 | 2013-06-11 14:17:30 +0200 | [diff] [blame] | 130 | ifneq ($(CONFIG_SPL_BUILD),y) |
Jeroen Hofstee | a2f61ca | 2013-08-24 13:55:38 +0200 | [diff] [blame] | 131 | # Check that only R_ARM_RELATIVE relocations are generated. |
Simon Glass | c46090d | 2020-07-19 13:56:01 -0600 | [diff] [blame] | 132 | INPUTS-y += checkarmreloc |
Jeroen Hofstee | a2f61ca | 2013-08-24 13:55:38 +0200 | [diff] [blame] | 133 | # The movt / movw can hardcode 16 bit parts of the addresses in the |
| 134 | # instruction. Relocation is not supported for that case, so disable |
| 135 | # such usage by requiring word relocations. |
| 136 | PLATFORM_CPPFLAGS += $(call cc-option, -mword-relocations) |
Peng Fan | 18ad929 | 2016-01-30 12:10:49 +0800 | [diff] [blame] | 137 | PLATFORM_CPPFLAGS += $(call cc-option, -fno-pic) |
Albert ARIBAUD | 446dd12 | 2013-06-11 14:17:30 +0200 | [diff] [blame] | 138 | endif |
Albert ARIBAUD | 95fc6d6 | 2013-11-07 14:21:46 +0100 | [diff] [blame] | 139 | |
| 140 | # limit ourselves to the sections we want in the .bin. |
David Feng | 85fd5f1 | 2013-12-14 11:47:35 +0800 | [diff] [blame] | 141 | ifdef CONFIG_ARM64 |
macro.wave.z@gmail.com | 01bd334 | 2016-12-08 11:58:22 +0800 | [diff] [blame] | 142 | OBJCOPYFLAGS += -j .text -j .secure_text -j .secure_data -j .rodata -j .data \ |
Simon Glass | 01361a2 | 2017-11-13 18:55:02 -0700 | [diff] [blame] | 143 | -j .u_boot_list -j .rela.dyn -j .got -j .got.plt \ |
Alexander Graf | 94a10f2 | 2018-06-12 07:48:37 +0200 | [diff] [blame] | 144 | -j .binman_sym_table -j .text_rest |
David Feng | 85fd5f1 | 2013-12-14 11:47:35 +0800 | [diff] [blame] | 145 | else |
Chen-Yu Tsai | 5ed0387 | 2016-07-05 21:45:06 +0800 | [diff] [blame] | 146 | OBJCOPYFLAGS += -j .text -j .secure_text -j .secure_data -j .rodata -j .hash \ |
Simon Glass | 01361a2 | 2017-11-13 18:55:02 -0700 | [diff] [blame] | 147 | -j .data -j .got -j .got.plt -j .u_boot_list -j .rel.dyn \ |
Alexander Graf | 94a10f2 | 2018-06-12 07:48:37 +0200 | [diff] [blame] | 148 | -j .binman_sym_table -j .text_rest |
David Feng | 85fd5f1 | 2013-12-14 11:47:35 +0800 | [diff] [blame] | 149 | endif |
Masahiro Yamada | d36a749 | 2014-02-24 11:12:21 +0900 | [diff] [blame] | 150 | |
Pantelis Antoniou | 7648273 | 2017-05-25 19:23:58 +0300 | [diff] [blame] | 151 | # if a dtb section exists we always have to include it |
| 152 | # there are only two cases where it is generated |
| 153 | # 1) OF_EMBEDED is turned on |
| 154 | # 2) unit tests include device tree blobs |
Alexey Ignatov | 576a8d5 | 2014-07-07 03:21:44 +0400 | [diff] [blame] | 155 | OBJCOPYFLAGS += -j .dtb.init.rodata |
Alexey Ignatov | 576a8d5 | 2014-07-07 03:21:44 +0400 | [diff] [blame] | 156 | |
Alexander Graf | 0bd425a | 2016-03-04 01:10:01 +0100 | [diff] [blame] | 157 | ifdef CONFIG_EFI_LOADER |
| 158 | OBJCOPYFLAGS += -j .efi_runtime -j .efi_runtime_rel |
| 159 | endif |
| 160 | |
Masahiro Yamada | d36a749 | 2014-02-24 11:12:21 +0900 | [diff] [blame] | 161 | ifneq ($(CONFIG_IMX_CONFIG),) |
| 162 | ifdef CONFIG_SPL |
| 163 | ifndef CONFIG_SPL_BUILD |
Simon Glass | c46090d | 2020-07-19 13:56:01 -0600 | [diff] [blame] | 164 | INPUTS-y += SPL |
Masahiro Yamada | d36a749 | 2014-02-24 11:12:21 +0900 | [diff] [blame] | 165 | endif |
| 166 | else |
Stefano Babic | c183a6e | 2014-03-31 09:50:35 +0200 | [diff] [blame] | 167 | ifeq ($(CONFIG_OF_SEPARATE),y) |
Simon Glass | c46090d | 2020-07-19 13:56:01 -0600 | [diff] [blame] | 168 | INPUTS-y += u-boot-dtb.imx |
Stefano Babic | c183a6e | 2014-03-31 09:50:35 +0200 | [diff] [blame] | 169 | else |
Simon Glass | c46090d | 2020-07-19 13:56:01 -0600 | [diff] [blame] | 170 | INPUTS-y += u-boot.imx |
Masahiro Yamada | d36a749 | 2014-02-24 11:12:21 +0900 | [diff] [blame] | 171 | endif |
| 172 | endif |
Albert ARIBAUD \(3ADEV\) | 2e9f494 | 2016-09-26 09:08:06 +0200 | [diff] [blame] | 173 | ifneq ($(CONFIG_VF610),) |
Simon Glass | c46090d | 2020-07-19 13:56:01 -0600 | [diff] [blame] | 174 | INPUTS-y += u-boot.vyb |
Albert ARIBAUD \(3ADEV\) | 2e9f494 | 2016-09-26 09:08:06 +0200 | [diff] [blame] | 175 | endif |
Stefano Babic | c183a6e | 2014-03-31 09:50:35 +0200 | [diff] [blame] | 176 | endif |
Simon Glass | fc03fb9 | 2016-11-07 08:47:10 -0700 | [diff] [blame] | 177 | |
| 178 | EFI_LDS := elf_arm_efi.lds |
| 179 | EFI_CRT0 := crt0_arm_efi.o |
| 180 | EFI_RELOC := reloc_arm_efi.o |