summaryrefslogtreecommitdiff
path: root/arch/arm/cpu/u-boot.lds
blob: 707b19795f08594c420e9544eb9e75bf4c02b44c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
/* SPDX-License-Identifier: GPL-2.0+ */
/*
 * Copyright (c) 2004-2008 Texas Instruments
 *
 * (C) Copyright 2002
 * Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
 */

#include <config.h>
#include <asm/psci.h>

OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
OUTPUT_ARCH(arm)
ENTRY(_start)
SECTIONS
{
#if defined(CONFIG_ARMV7_SECURE_BASE) && defined(CONFIG_ARMV7_NONSEC)
	/*
	 * If CONFIG_ARMV7_SECURE_BASE is true, secure code will not
	 * bundle with u-boot, and code offsets are fixed. Secure zone
	 * only needs to be copied from the loading address to
	 * CONFIG_ARMV7_SECURE_BASE, which is the linking and running
	 * address for secure code.
	 *
	 * If CONFIG_ARMV7_SECURE_BASE is undefined, the secure zone will
	 * be included in u-boot address space, and some absolute address
	 * were used in secure code. The absolute addresses of the secure
	 * code also needs to be relocated along with the accompanying u-boot
	 * code.
	 *
	 * So DISCARD is only for CONFIG_ARMV7_SECURE_BASE.
	 */
	/DISCARD/ : { *(.rel._secure*) }
#endif
	. = 0x00000000;

	. = ALIGN(4);
	__image_copy_start = ADDR(.text);
	.text :
	{
		*(.vectors)
		CPUDIR/start.o (.text*)
	}

	/* This needs to come before *(.text*) */
	.efi_runtime : {
		__efi_runtime_start = .;
		*(.text.efi_runtime*)
		*(.rodata.efi_runtime*)
		*(.data.efi_runtime*)
		__efi_runtime_stop = .;
	}

	.text_rest :
	{
		*(.text*)
	}

#ifdef CONFIG_ARMV7_NONSEC

	/* Align the secure section only if we're going to use it in situ */
	.__secure_start
#ifndef CONFIG_ARMV7_SECURE_BASE
		ALIGN(CONSTANT(COMMONPAGESIZE))
#endif
	: {
		KEEP(*(.__secure_start))
	}

#ifndef CONFIG_ARMV7_SECURE_BASE
#define __ARMV7_SECURE_BASE
#define __ARMV7_PSCI_STACK_IN_RAM
#else
#define __ARMV7_SECURE_BASE	CONFIG_ARMV7_SECURE_BASE
#endif

	.secure_text __ARMV7_SECURE_BASE :
		AT(ADDR(.__secure_start) + SIZEOF(.__secure_start))
	{
		*(._secure.text)
	}

	.secure_data : AT(LOADADDR(.secure_text) + SIZEOF(.secure_text))
	{
		*(._secure.data)
	}

#ifdef CONFIG_ARMV7_PSCI
	.secure_stack ALIGN(ADDR(.secure_data) + SIZEOF(.secure_data),
			    CONSTANT(COMMONPAGESIZE)) (NOLOAD) :
#ifdef __ARMV7_PSCI_STACK_IN_RAM
		AT(ADDR(.secure_stack))
#else
		AT(LOADADDR(.secure_data) + SIZEOF(.secure_data))
#endif
	{
		KEEP(*(.__secure_stack_start))

		/* Skip addreses for stack */
		. = . + CONFIG_ARMV7_PSCI_NR_CPUS * ARM_PSCI_STACK_SIZE;

		/* Align end of stack section to page boundary */
		. = ALIGN(CONSTANT(COMMONPAGESIZE));

		KEEP(*(.__secure_stack_end))

#ifdef CONFIG_ARMV7_SECURE_MAX_SIZE
		/*
		 * We are not checking (__secure_end - __secure_start) here,
		 * as these are the load addresses, and do not include the
		 * stack section. Instead, use the end of the stack section
		 * and the start of the text section.
		 */
		ASSERT((. - ADDR(.secure_text)) <= CONFIG_ARMV7_SECURE_MAX_SIZE,
		       "Error: secure section exceeds secure memory size");
#endif
	}

#ifndef __ARMV7_PSCI_STACK_IN_RAM
	/* Reset VMA but don't allocate space if we have secure SRAM */
	. = LOADADDR(.secure_stack);
#endif

#endif

	.__secure_end : AT(ADDR(.__secure_end)) {
		*(.__secure_end)
		LONG(0x1d1071c);	/* Must output something to reset LMA */
	}
#endif

	. = ALIGN(4);
	.rodata : { *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) }

	. = ALIGN(4);
	.data : {
		*(.data*)
	}

	. = ALIGN(4);

	. = .;

	. = ALIGN(4);
	__u_boot_list : {
		KEEP(*(SORT(__u_boot_list*)));
	}

	.efi_runtime_rel : {
		__efi_runtime_rel_start = .;
		*(.rel*.efi_runtime)
		*(.rel*.efi_runtime.*)
		__efi_runtime_rel_stop = .;
	}

	. = ALIGN(4);
	__image_copy_end = .;

	/*
	 * if CONFIG_USE_ARCH_MEMSET is not selected __bss_end - __bss_start
	 * needs to be a multiple of 4 and we overlay .bss with .rel.dyn
	 */
	.rel.dyn ALIGN(4) : {
		__rel_dyn_start = .;
		*(.rel*)
		__rel_dyn_end = .;
	}

	.end :
	{
		*(.__end)
	}

	_image_binary_end = .;

	/*
	 * Deprecated: this MMU section is used by pxa at present but
	 * should not be used by new boards/CPUs.
	 */
	. = ALIGN(4096);
	.mmutable : {
		*(.mmutable)
	}

/*
 * These sections occupy the same memory, but their lifetimes do
 * not overlap: U-Boot initializes .bss only after applying dynamic
 * relocations and therefore after it doesn't need .rel.dyn any more.
 */
	.bss ADDR(.rel.dyn) (OVERLAY): {
		__bss_start = .;
		*(.bss*)
		. = ALIGN(4);
		__bss_end = .;
	}

	.dynsym _image_binary_end : { *(.dynsym) }
	.dynbss : { *(.dynbss) }
	.dynstr : { *(.dynstr*) }
	.dynamic : { *(.dynamic*) }
	.plt : { *(.plt*) }
	.interp : { *(.interp*) }
	.gnu.hash : { *(.gnu.hash) }
	.gnu : { *(.gnu*) }
	.ARM.exidx : { *(.ARM.exidx*) }
	.gnu.linkonce.armexidx : { *(.gnu.linkonce.armexidx.*) }
}