1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * Copyright (c) 2011 The Chromium OS Authors.
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+
5*4882a593Smuzhiyun */
6*4882a593Smuzhiyun
7*4882a593Smuzhiyun /* Taken from Linux kernel, commit f56c3196 */
8*4882a593Smuzhiyun
9*4882a593Smuzhiyun #ifndef _ASM_GENERIC_SECTIONS_H_
10*4882a593Smuzhiyun #define _ASM_GENERIC_SECTIONS_H_
11*4882a593Smuzhiyun
12*4882a593Smuzhiyun /* References to section boundaries */
13*4882a593Smuzhiyun
14*4882a593Smuzhiyun extern char _text[], _stext[], _etext[];
15*4882a593Smuzhiyun extern char _data[], _sdata[], _edata[];
16*4882a593Smuzhiyun extern char __bss_start[], __bss_stop[];
17*4882a593Smuzhiyun extern char __init_begin[], __init_end[];
18*4882a593Smuzhiyun extern char _sinittext[], _einittext[];
19*4882a593Smuzhiyun extern char _end[], _init[];
20*4882a593Smuzhiyun extern char __per_cpu_load[], __per_cpu_start[], __per_cpu_end[];
21*4882a593Smuzhiyun extern char __kprobes_text_start[], __kprobes_text_end[];
22*4882a593Smuzhiyun extern char __entry_text_start[], __entry_text_end[];
23*4882a593Smuzhiyun extern char __initdata_begin[], __initdata_end[];
24*4882a593Smuzhiyun extern char __start_rodata[], __end_rodata[];
25*4882a593Smuzhiyun extern char __efi_hello_world_begin[];
26*4882a593Smuzhiyun extern char __efi_hello_world_end[];
27*4882a593Smuzhiyun
28*4882a593Smuzhiyun /* Start and end of .ctors section - used for constructor calls. */
29*4882a593Smuzhiyun extern char __ctors_start[], __ctors_end[];
30*4882a593Smuzhiyun
31*4882a593Smuzhiyun /* .ARM.exidx is sorted, so has to go in its own output section. */
32*4882a593Smuzhiyun extern char __exidx_start[], __exidx_end[];
33*4882a593Smuzhiyun extern char __extab_start[], __extab_end[];
34*4882a593Smuzhiyun
35*4882a593Smuzhiyun /* function descriptor handling (if any). Override
36*4882a593Smuzhiyun * in asm/sections.h */
37*4882a593Smuzhiyun #ifndef dereference_function_descriptor
38*4882a593Smuzhiyun #define dereference_function_descriptor(p) (p)
39*4882a593Smuzhiyun #endif
40*4882a593Smuzhiyun
41*4882a593Smuzhiyun /* random extra sections (if any). Override
42*4882a593Smuzhiyun * in asm/sections.h */
43*4882a593Smuzhiyun #ifndef arch_is_kernel_text
arch_is_kernel_text(unsigned long addr)44*4882a593Smuzhiyun static inline int arch_is_kernel_text(unsigned long addr)
45*4882a593Smuzhiyun {
46*4882a593Smuzhiyun return 0;
47*4882a593Smuzhiyun }
48*4882a593Smuzhiyun #endif
49*4882a593Smuzhiyun
50*4882a593Smuzhiyun #ifndef arch_is_kernel_data
arch_is_kernel_data(unsigned long addr)51*4882a593Smuzhiyun static inline int arch_is_kernel_data(unsigned long addr)
52*4882a593Smuzhiyun {
53*4882a593Smuzhiyun return 0;
54*4882a593Smuzhiyun }
55*4882a593Smuzhiyun #endif
56*4882a593Smuzhiyun
57*4882a593Smuzhiyun /* U-Boot-specific things begin here */
58*4882a593Smuzhiyun
59*4882a593Smuzhiyun /* Start of U-Boot text region */
60*4882a593Smuzhiyun extern char __text_start[];
61*4882a593Smuzhiyun
62*4882a593Smuzhiyun /* This marks the end of the text region which must be relocated */
63*4882a593Smuzhiyun extern char __image_copy_end[];
64*4882a593Smuzhiyun
65*4882a593Smuzhiyun /*
66*4882a593Smuzhiyun * This is the U-Boot entry point - prior to relocation it should be same
67*4882a593Smuzhiyun * as __text_start
68*4882a593Smuzhiyun */
69*4882a593Smuzhiyun extern void _start(void);
70*4882a593Smuzhiyun
71*4882a593Smuzhiyun /*
72*4882a593Smuzhiyun * ARM defines its symbols as char[]. Other arches define them as ulongs.
73*4882a593Smuzhiyun */
74*4882a593Smuzhiyun #ifdef CONFIG_ARM
75*4882a593Smuzhiyun
76*4882a593Smuzhiyun extern char __bss_start[];
77*4882a593Smuzhiyun extern char __bss_end[];
78*4882a593Smuzhiyun extern char __image_copy_start[];
79*4882a593Smuzhiyun extern char __image_copy_end[];
80*4882a593Smuzhiyun extern char _image_binary_end[];
81*4882a593Smuzhiyun extern char __rel_dyn_start[];
82*4882a593Smuzhiyun extern char __rel_dyn_end[];
83*4882a593Smuzhiyun
84*4882a593Smuzhiyun #else /* don't use offsets: */
85*4882a593Smuzhiyun
86*4882a593Smuzhiyun /* Exports from the Linker Script */
87*4882a593Smuzhiyun extern ulong __data_end;
88*4882a593Smuzhiyun extern ulong __rel_dyn_start;
89*4882a593Smuzhiyun extern ulong __rel_dyn_end;
90*4882a593Smuzhiyun extern ulong __bss_end;
91*4882a593Smuzhiyun extern ulong _image_binary_end;
92*4882a593Smuzhiyun
93*4882a593Smuzhiyun extern ulong _TEXT_BASE; /* code start */
94*4882a593Smuzhiyun
95*4882a593Smuzhiyun #endif
96*4882a593Smuzhiyun
97*4882a593Smuzhiyun #endif /* _ASM_GENERIC_SECTIONS_H_ */
98