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gerrit.devboardsforandroid.linaro.org / platform / external / u-boot / cdb93b276ba1e477728befb36bcee17fcb770ffd / . / include / asm-generic / sections.h
blob: daf021b647e6fdfa6d6baf091eaad707f58b55bb [file] [log] [blame]
Simon Glass18652862013-03-05 14:39:37 +0000[diff] [blame]1/*
2 * Copyright (c) 2011 The Chromium OS Authors.
3 *
Wolfgang Denk1a459662013-07-08 09:37:19 +0200[diff] [blame]4 * SPDX-License-Identifier: GPL-2.0+
Simon Glass18652862013-03-05 14:39:37 +0000[diff] [blame]5 */
6
7/* Taken from Linux kernel, commit f56c3196 */
8
9#ifndef _ASM_GENERIC_SECTIONS_H_
10#define _ASM_GENERIC_SECTIONS_H_
11
12/* References to section boundaries */
13
14extern char _text[], _stext[], _etext[];
15extern char _data[], _sdata[], _edata[];
16extern char __bss_start[], __bss_stop[];
17extern char __init_begin[], __init_end[];
18extern char _sinittext[], _einittext[];
Simon Glassa733b062013-04-26 02:53:43 +0000[diff] [blame]19extern char _end[], _init[];
Simon Glass18652862013-03-05 14:39:37 +0000[diff] [blame]20extern char __per_cpu_load[], __per_cpu_start[], __per_cpu_end[];
21extern char __kprobes_text_start[], __kprobes_text_end[];
22extern char __entry_text_start[], __entry_text_end[];
23extern char __initdata_begin[], __initdata_end[];
24extern char __start_rodata[], __end_rodata[];
Simon Glassc7ae3df2016-11-07 08:47:08 -0700[diff] [blame]25extern char __efi_hello_world_begin[];
26extern char __efi_hello_world_end[];
Simon Glass18652862013-03-05 14:39:37 +0000[diff] [blame]27
28/* Start and end of .ctors section - used for constructor calls. */
29extern char __ctors_start[], __ctors_end[];
30
31/* function descriptor handling (if any). Override
32 * in asm/sections.h */
33#ifndef dereference_function_descriptor
34#define dereference_function_descriptor(p) (p)
35#endif
36
37/* random extra sections (if any). Override
38 * in asm/sections.h */
39#ifndef arch_is_kernel_text
40static inline int arch_is_kernel_text(unsigned long addr)
41{
42 return 0;
43}
44#endif
45
46#ifndef arch_is_kernel_data
47static inline int arch_is_kernel_data(unsigned long addr)
48{
49 return 0;
50}
51#endif
52
53/* U-Boot-specific things begin here */
54
55/* Start of U-Boot text region */
56extern char __text_start[];
57
58/* This marks the end of the text region which must be relocated */
59extern char __image_copy_end[];
60
61/*
62 * This is the U-Boot entry point - prior to relocation it should be same
63 * as __text_start
64 */
65extern void _start(void);
66
67/*
Albert ARIBAUDb60eff32014-02-22 17:53:43 +0100[diff] [blame]68 * ARM defines its symbols as char[]. Other arches define them as ulongs.
Simon Glass18652862013-03-05 14:39:37 +0000[diff] [blame]69 */
70#ifdef CONFIG_ARM
Simon Glass18652862013-03-05 14:39:37 +0000[diff] [blame]71
Albert ARIBAUDb60eff32014-02-22 17:53:43 +0100[diff] [blame]72extern char __bss_start[];
73extern char __bss_end[];
74extern char __image_copy_start[];
75extern char __image_copy_end[];
Simon Glass10172962015-10-17 19:41:19 -0600[diff] [blame]76extern char _image_binary_end[];
Albert ARIBAUDb60eff32014-02-22 17:53:43 +0100[diff] [blame]77extern char __rel_dyn_start[];
78extern char __rel_dyn_end[];
Simon Glass18652862013-03-05 14:39:37 +0000[diff] [blame]79
80#else /* don't use offsets: */
81
82/* Exports from the Linker Script */
83extern ulong __data_end;
84extern ulong __rel_dyn_start;
85extern ulong __rel_dyn_end;
86extern ulong __bss_end;
Simon Glass22d95742016-09-25 21:33:05 -0600[diff] [blame]87extern ulong _image_binary_end;
Simon Glass18652862013-03-05 14:39:37 +0000[diff] [blame]88
89extern ulong _TEXT_BASE; /* code start */
90
91#endif
92
93#endif /* _ASM_GENERIC_SECTIONS_H_ */