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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 += $(LLVM_RELFLAGS) | |
30 | ||
90f984e3 | 31 | PLATFORM_CPPFLAGS += -D__ARM__ |
10a451cd | 32 | |
5356f545 | 33 | # Choose between ARM/Thumb instruction sets |
3a649407 | 34 | ifeq ($(CONFIG_$(SPL_)SYS_THUMB_BUILD),y) |
75d7a0d7 SA |
35 | AFLAGS_IMPLICIT_IT := $(call as-option,-Wa$(comma)-mimplicit-it=always) |
36 | PF_CPPFLAGS_ARM := $(AFLAGS_IMPLICIT_IT) \ | |
37 | $(call cc-option, -mthumb -mthumb-interwork,\ | |
5356f545 A |
38 | $(call cc-option,-marm,)\ |
39 | $(call cc-option,-mno-thumb-interwork,)\ | |
40 | ) | |
41 | else | |
42 | PF_CPPFLAGS_ARM := $(call cc-option,-marm,) \ | |
43 | $(call cc-option,-mno-thumb-interwork,) | |
44 | endif | |
f772acf8 | 45 | |
06a119a0 | 46 | # Only test once |
3a649407 | 47 | ifeq ($(CONFIG_$(SPL_)SYS_THUMB_BUILD),y) |
d2366dfe | 48 | archprepare: checkthumb checkgcc6 |
388b2e52 MY |
49 | |
50 | checkthumb: | |
6e2f1538 TR |
51 | @if test "$(call cc-name)" = "gcc" -a \ |
52 | "$(call cc-version)" -lt "0404"; then \ | |
388b2e52 MY |
53 | echo -n '*** Your GCC does not produce working '; \ |
54 | echo 'binaries in THUMB mode.'; \ | |
55 | echo '*** Your board is configured for THUMB mode.'; \ | |
56 | false; \ | |
57 | fi | |
d2366dfe TR |
58 | else |
59 | archprepare: checkgcc6 | |
388b2e52 | 60 | endif |
06a119a0 | 61 | |
d2366dfe TR |
62 | checkgcc6: |
63 | @if test "$(call cc-name)" = "gcc" -a \ | |
64 | "$(call cc-version)" -lt "0600"; then \ | |
65 | echo -n '*** Your GCC is older than 6.0 and will not be '; \ | |
66 | echo 'supported starting in v2018.01.'; \ | |
67 | fi | |
68 | ||
69 | ||
f772acf8 WD |
70 | # Try if EABI is supported, else fall back to old API, |
71 | # i. e. for example: | |
72 | # - with ELDK 4.2 (EABI supported), use: | |
5356f545 | 73 | # -mabi=aapcs-linux |
f772acf8 | 74 | # - with ELDK 4.1 (gcc 4.x, no EABI), use: |
5356f545 | 75 | # -mabi=apcs-gnu |
f772acf8 | 76 | # - with ELDK 3.1 (gcc 3.x), use: |
5356f545 | 77 | # -mapcs-32 |
cca4e4ae | 78 | PF_CPPFLAGS_ABI := $(call cc-option,\ |
5356f545 | 79 | -mabi=aapcs-linux,\ |
cca4e4ae WD |
80 | $(call cc-option,\ |
81 | -mapcs-32,\ | |
f772acf8 | 82 | $(call cc-option,\ |
cca4e4ae WD |
83 | -mabi=apcs-gnu,\ |
84 | )\ | |
5356f545 | 85 | )\ |
cca4e4ae WD |
86 | ) |
87 | PLATFORM_CPPFLAGS += $(PF_CPPFLAGS_ARM) $(PF_CPPFLAGS_ABI) | |
f772acf8 WD |
88 | |
89 | # For EABI, make sure to provide raise() | |
90 | ifneq (,$(findstring -mabi=aapcs-linux,$(PLATFORM_CPPFLAGS))) | |
5253418a A |
91 | # This file is parsed many times, so the string may get added multiple |
92 | # times. Also, the prefix needs to be different based on whether | |
93 | # CONFIG_SPL_BUILD is defined or not. 'filter-out' the existing entry | |
94 | # before adding the correct one. | |
a86cf89c MY |
95 | PLATFORM_LIBS := arch/arm/lib/eabi_compat.o \ |
96 | $(filter-out arch/arm/lib/eabi_compat.o, $(PLATFORM_LIBS)) | |
f772acf8 | 97 | endif |
92d5ecba | 98 | |
92d5ecba | 99 | # needed for relocation |
a4594e41 | 100 | LDFLAGS_u-boot += -pie |
0f20bb60 AM |
101 | |
102 | # | |
103 | # FIXME: binutils versions < 2.22 have a bug in the assembler where | |
104 | # branches to weak symbols can be incorrectly optimized in thumb mode | |
105 | # to a short branch (b.n instruction) that won't reach when the symbol | |
106 | # gets preempted | |
107 | # | |
108 | # http://sourceware.org/bugzilla/show_bug.cgi?id=12532 | |
109 | # | |
3a649407 | 110 | ifeq ($(CONFIG_$(SPL_)SYS_THUMB_BUILD),y) |
0f20bb60 AM |
111 | ifeq ($(GAS_BUG_12532),) |
112 | export GAS_BUG_12532:=$(shell if [ $(call binutils-version) -lt 0222 ] ; \ | |
113 | then echo y; else echo n; fi) | |
114 | endif | |
115 | ifeq ($(GAS_BUG_12532),y) | |
116 | PLATFORM_RELFLAGS += -fno-optimize-sibling-calls | |
117 | endif | |
118 | endif | |
c37980c3 | 119 | |
c37980c3 | 120 | ifneq ($(CONFIG_SPL_BUILD),y) |
373d7983 JH |
121 | # Check that only R_ARM_RELATIVE relocations are generated. |
122 | ALL-y += checkarmreloc | |
123 | # The movt / movw can hardcode 16 bit parts of the addresses in the | |
124 | # instruction. Relocation is not supported for that case, so disable | |
125 | # such usage by requiring word relocations. | |
126 | PLATFORM_CPPFLAGS += $(call cc-option, -mword-relocations) | |
397d7d5a | 127 | PLATFORM_CPPFLAGS += $(call cc-option, -fno-pic) |
c37980c3 | 128 | endif |
47ed5dd0 AA |
129 | |
130 | # limit ourselves to the sections we want in the .bin. | |
0ae76531 | 131 | ifdef CONFIG_ARM64 |
df88cb3b | 132 | OBJCOPYFLAGS += -j .text -j .secure_text -j .secure_data -j .rodata -j .data \ |
4b0d506e | 133 | -j .u_boot_list -j .rela.dyn -j .got -j .got.plt |
0ae76531 | 134 | else |
a5aa7ff3 CYT |
135 | OBJCOPYFLAGS += -j .text -j .secure_text -j .secure_data -j .rodata -j .hash \ |
136 | -j .data -j .got -j .got.plt -j .u_boot_list -j .rel.dyn | |
0ae76531 | 137 | endif |
630d2345 | 138 | |
072b2d88 AI |
139 | ifdef CONFIG_OF_EMBED |
140 | OBJCOPYFLAGS += -j .dtb.init.rodata | |
141 | endif | |
142 | ||
50149ea3 AG |
143 | ifdef CONFIG_EFI_LOADER |
144 | OBJCOPYFLAGS += -j .efi_runtime -j .efi_runtime_rel | |
145 | endif | |
146 | ||
630d2345 MY |
147 | ifneq ($(CONFIG_IMX_CONFIG),) |
148 | ifdef CONFIG_SPL | |
149 | ifndef CONFIG_SPL_BUILD | |
150 | ALL-y += SPL | |
151 | endif | |
152 | else | |
e64348f5 SB |
153 | ifeq ($(CONFIG_OF_SEPARATE),y) |
154 | ALL-y += u-boot-dtb.imx | |
155 | else | |
630d2345 MY |
156 | ALL-y += u-boot.imx |
157 | endif | |
158 | endif | |
ed0c2c0a AA |
159 | ifneq ($(CONFIG_VF610),) |
160 | ALL-y += u-boot.vyb | |
161 | endif | |
e64348f5 | 162 | endif |
dd46eef2 SG |
163 | |
164 | EFI_LDS := elf_arm_efi.lds | |
165 | EFI_CRT0 := crt0_arm_efi.o | |
166 | EFI_RELOC := reloc_arm_efi.o |