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git01.mediatek.com / filogic / uboot / 2a745e37a430ac549a2fbe63bb9bd79f5ead0f4b / . / include / asm-generic / sections.h
blob: 296c0cf9b80358afa0a48db16f8d2194a4c20fe4 [file] [log] [blame]
Tom Rini10e47792018-05-06 17:58:06 -0400[diff] [blame]1/* SPDX-License-Identifier: GPL-2.0+ */
Simon Glass9bce37c2013-03-05 14:39:37 +0000[diff] [blame]2/*
3 * Copyright (c) 2011 The Chromium OS Authors.
Simon Glass9bce37c2013-03-05 14:39:37 +0000[diff] [blame]4 */
5
6/* Taken from Linux kernel, commit f56c3196 */
7
8#ifndef _ASM_GENERIC_SECTIONS_H_
9#define _ASM_GENERIC_SECTIONS_H_
10
11/* References to section boundaries */
12
13extern char _text[], _stext[], _etext[];
14extern char _data[], _sdata[], _edata[];
15extern char __bss_start[], __bss_stop[];
16extern char __init_begin[], __init_end[];
17extern char _sinittext[], _einittext[];
Simon Glass62cf9122013-04-26 02:53:43 +0000[diff] [blame]18extern char _end[], _init[];
Simon Glass9bce37c2013-03-05 14:39:37 +0000[diff] [blame]19extern char __per_cpu_load[], __per_cpu_start[], __per_cpu_end[];
20extern char __kprobes_text_start[], __kprobes_text_end[];
21extern char __entry_text_start[], __entry_text_end[];
22extern char __initdata_begin[], __initdata_end[];
23extern char __start_rodata[], __end_rodata[];
Heinrich Schuchardt7804ae92017-09-05 03:19:37 +0200[diff] [blame]24extern char __efi_helloworld_begin[];
25extern char __efi_helloworld_end[];
Simon Glass9bce37c2013-03-05 14:39:37 +0000[diff] [blame]26
27/* Start and end of .ctors section - used for constructor calls. */
28extern char __ctors_start[], __ctors_end[];
29
30/* function descriptor handling (if any). Override
31 * in asm/sections.h */
32#ifndef dereference_function_descriptor
33#define dereference_function_descriptor(p) (p)
34#endif
35
36/* random extra sections (if any). Override
37 * in asm/sections.h */
38#ifndef arch_is_kernel_text
39static inline int arch_is_kernel_text(unsigned long addr)
40{
41 return 0;
42}
43#endif
44
45#ifndef arch_is_kernel_data
46static inline int arch_is_kernel_data(unsigned long addr)
47{
48 return 0;
49}
50#endif
51
52/* U-Boot-specific things begin here */
53
54/* Start of U-Boot text region */
55extern char __text_start[];
56
57/* This marks the end of the text region which must be relocated */
58extern char __image_copy_end[];
59
60/*
61 * This is the U-Boot entry point - prior to relocation it should be same
62 * as __text_start
63 */
64extern void _start(void);
65
66/*
Albert ARIBAUD6e294722014-02-22 17:53:43 +0100[diff] [blame]67 * ARM defines its symbols as char[]. Other arches define them as ulongs.
Simon Glass9bce37c2013-03-05 14:39:37 +0000[diff] [blame]68 */
69#ifdef CONFIG_ARM
Simon Glass9bce37c2013-03-05 14:39:37 +0000[diff] [blame]70
Albert ARIBAUD6e294722014-02-22 17:53:43 +0100[diff] [blame]71extern char __bss_start[];
72extern char __bss_end[];
73extern char __image_copy_start[];
74extern char __image_copy_end[];
Simon Glass77ec34e2015-10-17 19:41:19 -0600[diff] [blame]75extern char _image_binary_end[];
Albert ARIBAUD6e294722014-02-22 17:53:43 +0100[diff] [blame]76extern char __rel_dyn_start[];
77extern char __rel_dyn_end[];
Simon Glass9bce37c2013-03-05 14:39:37 +0000[diff] [blame]78
79#else /* don't use offsets: */
80
81/* Exports from the Linker Script */
82extern ulong __data_end;
83extern ulong __rel_dyn_start;
84extern ulong __rel_dyn_end;
85extern ulong __bss_end;
Simon Glassb30c97f2016-09-25 21:33:05 -0600[diff] [blame]86extern ulong _image_binary_end;
Simon Glass9bce37c2013-03-05 14:39:37 +0000[diff] [blame]87
88extern ulong _TEXT_BASE; /* code start */
89
90#endif
91
92#endif /* _ASM_GENERIC_SECTIONS_H_ */