1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*
3 * Copyright (c) 2011 The Chromium OS Authors.
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
13 extern char _text[], _stext[], _etext[];
14 extern char _data[], _sdata[], _edata[];
15 extern char __bss_start[], __bss_stop[];
16 extern char __init_begin[], __init_end[];
17 extern char _sinittext[], _einittext[];
18 extern char _end[], _init[];
19 extern char __per_cpu_load[], __per_cpu_start[], __per_cpu_end[];
20 extern char __kprobes_text_start[], __kprobes_text_end[];
21 extern char __entry_text_start[], __entry_text_end[];
22 extern char __initdata_begin[], __initdata_end[];
23 extern char __start_rodata[], __end_rodata[];
24 extern char __efi_helloworld_begin[];
25 extern char __efi_helloworld_end[];
26
27 /* Start and end of .ctors section - used for constructor calls. */
28 extern 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
arch_is_kernel_text(unsigned long addr)39 static inline int arch_is_kernel_text(unsigned long addr)
40 {
41 return 0;
42 }
43 #endif
44
45 #ifndef arch_is_kernel_data
arch_is_kernel_data(unsigned long addr)46 static 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 */
55 extern char __text_start[];
56
57 /* This marks the end of the text region which must be relocated */
58 extern 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 */
64 extern void _start(void);
65
66 /*
67 * ARM defines its symbols as char[]. Other arches define them as ulongs.
68 */
69 #ifdef CONFIG_ARM
70
71 extern char __bss_start[];
72 extern char __bss_end[];
73 extern char __image_copy_start[];
74 extern char __image_copy_end[];
75 extern char _image_binary_end[];
76 extern char __rel_dyn_start[];
77 extern char __rel_dyn_end[];
78
79 #else /* don't use offsets: */
80
81 /* Exports from the Linker Script */
82 extern ulong __data_end;
83 extern ulong __rel_dyn_start;
84 extern ulong __rel_dyn_end;
85 extern ulong __bss_end;
86 extern ulong _image_binary_end;
87
88 extern ulong _TEXT_BASE; /* code start */
89
90 #endif
91
92 #endif /* _ASM_GENERIC_SECTIONS_H_ */
93