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 #include <linux/types.h>
12
13 /* References to section boundaries */
14
15 extern char _text[], _stext[], _etext[];
16 extern char _data[], _sdata[], _edata[];
17 extern char __bss_start[], __bss_stop[];
18 extern char __init_begin[], __init_end[];
19 extern char _sinittext[], _einittext[];
20 extern char _end[], _init[];
21 extern char __per_cpu_load[], __per_cpu_start[], __per_cpu_end[];
22 extern char __kprobes_text_start[], __kprobes_text_end[];
23 extern char __entry_text_start[], __entry_text_end[];
24 extern char __initdata_begin[], __initdata_end[];
25 extern char __start_rodata[], __end_rodata[];
26 extern char __efi_helloworld_begin[];
27 extern char __efi_helloworld_end[];
28 extern char __efi_var_file_begin[];
29 extern char __efi_var_file_end[];
30
31 /* Start and end of .ctors section - used for constructor calls. */
32 extern char __ctors_start[], __ctors_end[];
33
34 /* function descriptor handling (if any). Override
35 * in asm/sections.h */
36 #ifndef dereference_function_descriptor
37 #define dereference_function_descriptor(p) (p)
38 #endif
39
40 /* random extra sections (if any). Override
41 * in asm/sections.h */
42 #ifndef arch_is_kernel_text
arch_is_kernel_text(unsigned long addr)43 static inline int arch_is_kernel_text(unsigned long addr)
44 {
45 return 0;
46 }
47 #endif
48
49 #ifndef arch_is_kernel_data
arch_is_kernel_data(unsigned long addr)50 static inline int arch_is_kernel_data(unsigned long addr)
51 {
52 return 0;
53 }
54 #endif
55
56 /* U-Boot-specific things begin here */
57
58 /* Start of U-Boot text region */
59 extern char __text_start[];
60
61 /* This marks the end of the text region which must be relocated */
62 extern char __image_copy_end[];
63
64 /*
65 * This is the U-Boot entry point - prior to relocation it should be same
66 * as __text_start
67 */
68 extern void _start(void);
69
70 /*
71 * ARM defines its symbols as char[]. Other arches define them as ulongs.
72 */
73 #ifdef CONFIG_ARM
74
75 extern char __bss_start[];
76 extern char __bss_end[];
77 extern char __image_copy_start[];
78 extern char __image_copy_end[];
79 extern char _image_binary_end[];
80 extern char __rel_dyn_start[];
81 extern char __rel_dyn_end[];
82
83 #else /* don't use offsets: */
84
85 /* Exports from the Linker Script */
86 extern ulong __data_end;
87 extern ulong __rel_dyn_start;
88 extern ulong __rel_dyn_end;
89 extern ulong __bss_end;
90 extern ulong _image_binary_end;
91
92 extern ulong _TEXT_BASE; /* code start */
93
94 #endif
95
96 #endif /* _ASM_GENERIC_SECTIONS_H_ */
97