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Commit | Line | Data |
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39f0e5f8 WD |
1 | # |
2 | # (C) Copyright 2000-2002 | |
3 | # Wolfgang Denk, DENX Software Engineering, wd@denx.de. | |
4 | # | |
1a459660 | 5 | # SPDX-License-Identifier: GPL-2.0+ |
39f0e5f8 WD |
6 | # |
7 | ||
8ae86b76 | 8 | ifndef CONFIG_STANDALONE_LOAD_ADDR |
a93fbf4a | 9 | ifneq ($(CONFIG_ARCH_OMAP2PLUS),) |
8ae86b76 | 10 | CONFIG_STANDALONE_LOAD_ADDR = 0x80300000 |
262ae0a6 | 11 | else |
8ae86b76 | 12 | CONFIG_STANDALONE_LOAD_ADDR = 0xc100000 |
262ae0a6 MF |
13 | endif |
14 | endif | |
15 | ||
dd46eef2 SG |
16 | CFLAGS_NON_EFI := -fno-pic -ffixed-r9 -ffunction-sections -fdata-sections |
17 | CFLAGS_EFI := -fpic -fshort-wchar | |
18 | ||
fd725691 | 19 | LDFLAGS_FINAL += --gc-sections |
3102274d | 20 | PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections \ |
0ae76531 | 21 | -fno-common -ffixed-r9 |
bf1af3d8 MY |
22 | PLATFORM_RELFLAGS += $(call cc-option, -msoft-float) \ |
23 | $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) | |
fd725691 | 24 | |
b745e828 TR |
25 | # LLVM support |
26 | LLVMS_RELFLAGS := $(call cc-option,-mllvm,) \ | |
27 | $(call cc-option,-target arm-none-eabi,) \ | |
28 | $(call cc-option,-arm-use-movt=0,) | |
29 | PLATFORM_RELFLAGS += $(LLVM_RELFLAGS) | |
30 | ||
90f984e3 | 31 | PLATFORM_CPPFLAGS += -D__ARM__ |
10a451cd | 32 | |
d57259b9 ÁFR |
33 | ifdef CONFIG_ARM64 |
34 | PLATFORM_ELFFLAGS += -B aarch64 -O elf64-littleaarch64 | |
35 | else | |
36 | PLATFORM_ELFFLAGS += -B arm -O elf32-littlearm | |
37 | endif | |
38 | ||
5356f545 | 39 | # Choose between ARM/Thumb instruction sets |
3a649407 | 40 | ifeq ($(CONFIG_$(SPL_)SYS_THUMB_BUILD),y) |
75d7a0d7 SA |
41 | AFLAGS_IMPLICIT_IT := $(call as-option,-Wa$(comma)-mimplicit-it=always) |
42 | PF_CPPFLAGS_ARM := $(AFLAGS_IMPLICIT_IT) \ | |
43 | $(call cc-option, -mthumb -mthumb-interwork,\ | |
5356f545 A |
44 | $(call cc-option,-marm,)\ |
45 | $(call cc-option,-mno-thumb-interwork,)\ | |
46 | ) | |
47 | else | |
48 | PF_CPPFLAGS_ARM := $(call cc-option,-marm,) \ | |
49 | $(call cc-option,-mno-thumb-interwork,) | |
50 | endif | |
f772acf8 | 51 | |
06a119a0 | 52 | # Only test once |
3a649407 | 53 | ifeq ($(CONFIG_$(SPL_)SYS_THUMB_BUILD),y) |
d2366dfe | 54 | archprepare: checkthumb checkgcc6 |
388b2e52 MY |
55 | |
56 | checkthumb: | |
6e2f1538 TR |
57 | @if test "$(call cc-name)" = "gcc" -a \ |
58 | "$(call cc-version)" -lt "0404"; then \ | |
388b2e52 MY |
59 | echo -n '*** Your GCC does not produce working '; \ |
60 | echo 'binaries in THUMB mode.'; \ | |
61 | echo '*** Your board is configured for THUMB mode.'; \ | |
62 | false; \ | |
63 | fi | |
d2366dfe TR |
64 | else |
65 | archprepare: checkgcc6 | |
388b2e52 | 66 | endif |
06a119a0 | 67 | |
d2366dfe TR |
68 | checkgcc6: |
69 | @if test "$(call cc-name)" = "gcc" -a \ | |
70 | "$(call cc-version)" -lt "0600"; then \ | |
6b867dab TR |
71 | echo '*** Your GCC is older than 6.0 and is not supported'; \ |
72 | false; \ | |
d2366dfe TR |
73 | fi |
74 | ||
75 | ||
f772acf8 WD |
76 | # Try if EABI is supported, else fall back to old API, |
77 | # i. e. for example: | |
78 | # - with ELDK 4.2 (EABI supported), use: | |
5356f545 | 79 | # -mabi=aapcs-linux |
f772acf8 | 80 | # - with ELDK 4.1 (gcc 4.x, no EABI), use: |
5356f545 | 81 | # -mabi=apcs-gnu |
f772acf8 | 82 | # - with ELDK 3.1 (gcc 3.x), use: |
5356f545 | 83 | # -mapcs-32 |
cca4e4ae | 84 | PF_CPPFLAGS_ABI := $(call cc-option,\ |
5356f545 | 85 | -mabi=aapcs-linux,\ |
cca4e4ae WD |
86 | $(call cc-option,\ |
87 | -mapcs-32,\ | |
f772acf8 | 88 | $(call cc-option,\ |
cca4e4ae WD |
89 | -mabi=apcs-gnu,\ |
90 | )\ | |
5356f545 | 91 | )\ |
cca4e4ae WD |
92 | ) |
93 | PLATFORM_CPPFLAGS += $(PF_CPPFLAGS_ARM) $(PF_CPPFLAGS_ABI) | |
f772acf8 WD |
94 | |
95 | # For EABI, make sure to provide raise() | |
96 | ifneq (,$(findstring -mabi=aapcs-linux,$(PLATFORM_CPPFLAGS))) | |
5253418a A |
97 | # This file is parsed many times, so the string may get added multiple |
98 | # times. Also, the prefix needs to be different based on whether | |
99 | # CONFIG_SPL_BUILD is defined or not. 'filter-out' the existing entry | |
100 | # before adding the correct one. | |
a86cf89c MY |
101 | PLATFORM_LIBS := arch/arm/lib/eabi_compat.o \ |
102 | $(filter-out arch/arm/lib/eabi_compat.o, $(PLATFORM_LIBS)) | |
f772acf8 | 103 | endif |
92d5ecba | 104 | |
92d5ecba | 105 | # needed for relocation |
a4594e41 | 106 | LDFLAGS_u-boot += -pie |
0f20bb60 AM |
107 | |
108 | # | |
109 | # FIXME: binutils versions < 2.22 have a bug in the assembler where | |
110 | # branches to weak symbols can be incorrectly optimized in thumb mode | |
111 | # to a short branch (b.n instruction) that won't reach when the symbol | |
112 | # gets preempted | |
113 | # | |
114 | # http://sourceware.org/bugzilla/show_bug.cgi?id=12532 | |
115 | # | |
3a649407 | 116 | ifeq ($(CONFIG_$(SPL_)SYS_THUMB_BUILD),y) |
0f20bb60 AM |
117 | ifeq ($(GAS_BUG_12532),) |
118 | export GAS_BUG_12532:=$(shell if [ $(call binutils-version) -lt 0222 ] ; \ | |
119 | then echo y; else echo n; fi) | |
120 | endif | |
121 | ifeq ($(GAS_BUG_12532),y) | |
122 | PLATFORM_RELFLAGS += -fno-optimize-sibling-calls | |
123 | endif | |
124 | endif | |
c37980c3 | 125 | |
c37980c3 | 126 | ifneq ($(CONFIG_SPL_BUILD),y) |
373d7983 JH |
127 | # Check that only R_ARM_RELATIVE relocations are generated. |
128 | ALL-y += checkarmreloc | |
129 | # The movt / movw can hardcode 16 bit parts of the addresses in the | |
130 | # instruction. Relocation is not supported for that case, so disable | |
131 | # such usage by requiring word relocations. | |
132 | PLATFORM_CPPFLAGS += $(call cc-option, -mword-relocations) | |
397d7d5a | 133 | PLATFORM_CPPFLAGS += $(call cc-option, -fno-pic) |
c37980c3 | 134 | endif |
47ed5dd0 AA |
135 | |
136 | # limit ourselves to the sections we want in the .bin. | |
0ae76531 | 137 | ifdef CONFIG_ARM64 |
df88cb3b | 138 | OBJCOPYFLAGS += -j .text -j .secure_text -j .secure_data -j .rodata -j .data \ |
cf2a8fd6 SG |
139 | -j .u_boot_list -j .rela.dyn -j .got -j .got.plt \ |
140 | -j .binman_sym_table | |
0ae76531 | 141 | else |
a5aa7ff3 | 142 | OBJCOPYFLAGS += -j .text -j .secure_text -j .secure_data -j .rodata -j .hash \ |
cf2a8fd6 SG |
143 | -j .data -j .got -j .got.plt -j .u_boot_list -j .rel.dyn \ |
144 | -j .binman_sym_table | |
0ae76531 | 145 | endif |
630d2345 | 146 | |
54cc4dcf PA |
147 | # if a dtb section exists we always have to include it |
148 | # there are only two cases where it is generated | |
149 | # 1) OF_EMBEDED is turned on | |
150 | # 2) unit tests include device tree blobs | |
072b2d88 | 151 | OBJCOPYFLAGS += -j .dtb.init.rodata |
072b2d88 | 152 | |
50149ea3 AG |
153 | ifdef CONFIG_EFI_LOADER |
154 | OBJCOPYFLAGS += -j .efi_runtime -j .efi_runtime_rel | |
155 | endif | |
156 | ||
630d2345 MY |
157 | ifneq ($(CONFIG_IMX_CONFIG),) |
158 | ifdef CONFIG_SPL | |
159 | ifndef CONFIG_SPL_BUILD | |
160 | ALL-y += SPL | |
161 | endif | |
162 | else | |
e64348f5 SB |
163 | ifeq ($(CONFIG_OF_SEPARATE),y) |
164 | ALL-y += u-boot-dtb.imx | |
165 | else | |
630d2345 MY |
166 | ALL-y += u-boot.imx |
167 | endif | |
168 | endif | |
ed0c2c0a AA |
169 | ifneq ($(CONFIG_VF610),) |
170 | ALL-y += u-boot.vyb | |
171 | endif | |
e64348f5 | 172 | endif |
dd46eef2 SG |
173 | |
174 | EFI_LDS := elf_arm_efi.lds | |
175 | EFI_CRT0 := crt0_arm_efi.o | |
176 | EFI_RELOC := reloc_arm_efi.o |