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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 |
806d2792 | 9 | ifneq ($(CONFIG_OMAP_COMMON),) |
8ae86b76 | 10 | CONFIG_STANDALONE_LOAD_ADDR = 0x80300000 |
262ae0a6 | 11 | else |
8ae86b76 | 12 | CONFIG_STANDALONE_LOAD_ADDR = 0xc100000 |
262ae0a6 MF |
13 | endif |
14 | endif | |
15 | ||
fd725691 | 16 | LDFLAGS_FINAL += --gc-sections |
3102274d | 17 | PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections \ |
0ae76531 | 18 | -fno-common -ffixed-r9 |
bf1af3d8 MY |
19 | PLATFORM_RELFLAGS += $(call cc-option, -msoft-float) \ |
20 | $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) | |
fd725691 | 21 | |
b745e828 TR |
22 | # LLVM support |
23 | LLVMS_RELFLAGS := $(call cc-option,-mllvm,) \ | |
24 | $(call cc-option,-target arm-none-eabi,) \ | |
25 | $(call cc-option,-arm-use-movt=0,) | |
26 | PLATFORM_RELFLAGS += $(LLVM_RELFLAGS) | |
27 | ||
90f984e3 | 28 | PLATFORM_CPPFLAGS += -D__ARM__ |
10a451cd | 29 | |
5356f545 A |
30 | # Choose between ARM/Thumb instruction sets |
31 | ifeq ($(CONFIG_SYS_THUMB_BUILD),y) | |
75d7a0d7 SA |
32 | AFLAGS_IMPLICIT_IT := $(call as-option,-Wa$(comma)-mimplicit-it=always) |
33 | PF_CPPFLAGS_ARM := $(AFLAGS_IMPLICIT_IT) \ | |
34 | $(call cc-option, -mthumb -mthumb-interwork,\ | |
5356f545 A |
35 | $(call cc-option,-marm,)\ |
36 | $(call cc-option,-mno-thumb-interwork,)\ | |
37 | ) | |
38 | else | |
39 | PF_CPPFLAGS_ARM := $(call cc-option,-marm,) \ | |
40 | $(call cc-option,-mno-thumb-interwork,) | |
41 | endif | |
f772acf8 | 42 | |
06a119a0 TR |
43 | # Only test once |
44 | ifneq ($(CONFIG_SPL_BUILD),y) | |
388b2e52 MY |
45 | ifeq ($(CONFIG_SYS_THUMB_BUILD),y) |
46 | archprepare: checkthumb | |
47 | ||
48 | checkthumb: | |
6e2f1538 TR |
49 | @if test "$(call cc-name)" = "gcc" -a \ |
50 | "$(call cc-version)" -lt "0404"; then \ | |
388b2e52 MY |
51 | echo -n '*** Your GCC does not produce working '; \ |
52 | echo 'binaries in THUMB mode.'; \ | |
53 | echo '*** Your board is configured for THUMB mode.'; \ | |
54 | false; \ | |
55 | fi | |
56 | endif | |
06a119a0 TR |
57 | endif |
58 | ||
f772acf8 WD |
59 | # Try if EABI is supported, else fall back to old API, |
60 | # i. e. for example: | |
61 | # - with ELDK 4.2 (EABI supported), use: | |
5356f545 | 62 | # -mabi=aapcs-linux |
f772acf8 | 63 | # - with ELDK 4.1 (gcc 4.x, no EABI), use: |
5356f545 | 64 | # -mabi=apcs-gnu |
f772acf8 | 65 | # - with ELDK 3.1 (gcc 3.x), use: |
5356f545 | 66 | # -mapcs-32 |
cca4e4ae | 67 | PF_CPPFLAGS_ABI := $(call cc-option,\ |
5356f545 | 68 | -mabi=aapcs-linux,\ |
cca4e4ae WD |
69 | $(call cc-option,\ |
70 | -mapcs-32,\ | |
f772acf8 | 71 | $(call cc-option,\ |
cca4e4ae WD |
72 | -mabi=apcs-gnu,\ |
73 | )\ | |
5356f545 | 74 | )\ |
cca4e4ae WD |
75 | ) |
76 | PLATFORM_CPPFLAGS += $(PF_CPPFLAGS_ARM) $(PF_CPPFLAGS_ABI) | |
f772acf8 WD |
77 | |
78 | # For EABI, make sure to provide raise() | |
79 | ifneq (,$(findstring -mabi=aapcs-linux,$(PLATFORM_CPPFLAGS))) | |
5253418a A |
80 | # This file is parsed many times, so the string may get added multiple |
81 | # times. Also, the prefix needs to be different based on whether | |
82 | # CONFIG_SPL_BUILD is defined or not. 'filter-out' the existing entry | |
83 | # before adding the correct one. | |
a86cf89c MY |
84 | PLATFORM_LIBS := arch/arm/lib/eabi_compat.o \ |
85 | $(filter-out arch/arm/lib/eabi_compat.o, $(PLATFORM_LIBS)) | |
f772acf8 | 86 | endif |
92d5ecba | 87 | |
92d5ecba | 88 | # needed for relocation |
a4594e41 | 89 | LDFLAGS_u-boot += -pie |
0f20bb60 AM |
90 | |
91 | # | |
92 | # FIXME: binutils versions < 2.22 have a bug in the assembler where | |
93 | # branches to weak symbols can be incorrectly optimized in thumb mode | |
94 | # to a short branch (b.n instruction) that won't reach when the symbol | |
95 | # gets preempted | |
96 | # | |
97 | # http://sourceware.org/bugzilla/show_bug.cgi?id=12532 | |
98 | # | |
99 | ifeq ($(CONFIG_SYS_THUMB_BUILD),y) | |
100 | ifeq ($(GAS_BUG_12532),) | |
101 | export GAS_BUG_12532:=$(shell if [ $(call binutils-version) -lt 0222 ] ; \ | |
102 | then echo y; else echo n; fi) | |
103 | endif | |
104 | ifeq ($(GAS_BUG_12532),y) | |
105 | PLATFORM_RELFLAGS += -fno-optimize-sibling-calls | |
106 | endif | |
107 | endif | |
c37980c3 | 108 | |
c37980c3 | 109 | ifneq ($(CONFIG_SPL_BUILD),y) |
373d7983 JH |
110 | # Check that only R_ARM_RELATIVE relocations are generated. |
111 | ALL-y += checkarmreloc | |
112 | # The movt / movw can hardcode 16 bit parts of the addresses in the | |
113 | # instruction. Relocation is not supported for that case, so disable | |
114 | # such usage by requiring word relocations. | |
115 | PLATFORM_CPPFLAGS += $(call cc-option, -mword-relocations) | |
397d7d5a | 116 | PLATFORM_CPPFLAGS += $(call cc-option, -fno-pic) |
c37980c3 | 117 | endif |
47ed5dd0 AA |
118 | |
119 | # limit ourselves to the sections we want in the .bin. | |
0ae76531 | 120 | ifdef CONFIG_ARM64 |
95ddcd68 | 121 | OBJCOPYFLAGS += -j .text -j .rodata -j .data -j .u_boot_list -j .rela.dyn |
0ae76531 | 122 | else |
a5aa7ff3 CYT |
123 | OBJCOPYFLAGS += -j .text -j .secure_text -j .secure_data -j .rodata -j .hash \ |
124 | -j .data -j .got -j .got.plt -j .u_boot_list -j .rel.dyn | |
0ae76531 | 125 | endif |
630d2345 | 126 | |
072b2d88 AI |
127 | ifdef CONFIG_OF_EMBED |
128 | OBJCOPYFLAGS += -j .dtb.init.rodata | |
129 | endif | |
130 | ||
50149ea3 AG |
131 | ifdef CONFIG_EFI_LOADER |
132 | OBJCOPYFLAGS += -j .efi_runtime -j .efi_runtime_rel | |
133 | endif | |
134 | ||
630d2345 MY |
135 | ifneq ($(CONFIG_IMX_CONFIG),) |
136 | ifdef CONFIG_SPL | |
137 | ifndef CONFIG_SPL_BUILD | |
138 | ALL-y += SPL | |
139 | endif | |
140 | else | |
e64348f5 SB |
141 | ifeq ($(CONFIG_OF_SEPARATE),y) |
142 | ALL-y += u-boot-dtb.imx | |
143 | else | |
630d2345 MY |
144 | ALL-y += u-boot.imx |
145 | endif | |
146 | endif | |
ed0c2c0a AA |
147 | ifneq ($(CONFIG_VF610),) |
148 | ALL-y += u-boot.vyb | |
149 | endif | |
e64348f5 | 150 | endif |