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git01.mediatek.com / filogic / uboot / 96a42eda98d0642c59078656452290a6f55c70b8 / . / include / asm-generic / sections.h
blob: 458952fb58c6cc67c26e5e0c9cb17c21108ee4b8 [file] [log] [blame]
Simon Glass9bce37c2013-03-05 14:39:37 +0000[diff] [blame]1/*
2 * Copyright (c) 2011 The Chromium OS Authors.
3 *
Wolfgang Denkd79de1d2013-07-08 09:37:19 +0200[diff] [blame]4 * SPDX-License-Identifier: GPL-2.0+
Simon Glass9bce37c2013-03-05 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 Glass62cf9122013-04-26 02:53:43 +0000[diff] [blame]19extern char _end[], _init[];
Simon Glass9bce37c2013-03-05 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[];
25
26/* Start and end of .ctors section - used for constructor calls. */
27extern char __ctors_start[], __ctors_end[];
28
29/* function descriptor handling (if any). Override
30 * in asm/sections.h */
31#ifndef dereference_function_descriptor
32#define dereference_function_descriptor(p) (p)
33#endif
34
35/* random extra sections (if any). Override
36 * in asm/sections.h */
37#ifndef arch_is_kernel_text
38static inline int arch_is_kernel_text(unsigned long addr)
39{
40 return 0;
41}
42#endif
43
44#ifndef arch_is_kernel_data
45static inline int arch_is_kernel_data(unsigned long addr)
46{
47 return 0;
48}
49#endif
50
51/* U-Boot-specific things begin here */
52
53/* Start of U-Boot text region */
54extern char __text_start[];
55
56/* This marks the end of the text region which must be relocated */
57extern char __image_copy_end[];
58
59/*
60 * This is the U-Boot entry point - prior to relocation it should be same
61 * as __text_start
62 */
63extern void _start(void);
64
65/*
Albert ARIBAUD6e294722014-02-22 17:53:43 +0100[diff] [blame]66 * ARM defines its symbols as char[]. Other arches define them as ulongs.
Simon Glass9bce37c2013-03-05 14:39:37 +0000[diff] [blame]67 */
68#ifdef CONFIG_ARM
Simon Glass9bce37c2013-03-05 14:39:37 +0000[diff] [blame]69
Albert ARIBAUD6e294722014-02-22 17:53:43 +0100[diff] [blame]70extern char __bss_start[];
71extern char __bss_end[];
72extern char __image_copy_start[];
73extern char __image_copy_end[];
74extern char __rel_dyn_start[];
75extern char __rel_dyn_end[];
Simon Glass9bce37c2013-03-05 14:39:37 +0000[diff] [blame]76
77#else /* don't use offsets: */
78
79/* Exports from the Linker Script */
80extern ulong __data_end;
81extern ulong __rel_dyn_start;
82extern ulong __rel_dyn_end;
83extern ulong __bss_end;
84
85extern ulong _TEXT_BASE; /* code start */
86
87#endif
88
89#endif /* _ASM_GENERIC_SECTIONS_H_ */