| 1 | #ifndef _ASM_GENERIC_SECTIONS_H_
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| 2 | #define _ASM_GENERIC_SECTIONS_H_
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| 3 |
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| 4 |
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| 5 |
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| 6 | |
| 7 | * Usage guidelines:
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| 8 | * _text, _data: architecture specific, don't use them in arch-independent code
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| 9 | * [_stext, _etext]: contains .text.* sections, may also contain .rodata.*
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| 10 | * and/or .init.* sections
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| 11 | * [_sdata, _edata]: contains .data.* sections, may also contain .rodata.*
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| 12 | * and/or .init.* sections.
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| 13 | * [__start_rodata, __end_rodata]: contains .rodata.* sections
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| 14 | * [__init_begin, __init_end]: contains .init.* sections, but .init.text.*
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| 15 | * may be out of this range on some architectures.
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| 16 | * [_sinittext, _einittext]: contains .init.text.* sections
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| 17 | * [__bss_start, __bss_stop]: contains BSS sections
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| 18 | *
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| 19 | * Following global variables are optional and may be unavailable on some
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| 20 | * architectures and/or kernel configurations.
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| 21 | * _text, _data
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| 22 | * __kprobes_text_start, __kprobes_text_end
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| 23 | * __entry_text_start, __entry_text_end
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| 24 | * __ctors_start, __ctors_end
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| 25 |
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| 26 | extern char _text[], _stext[], _etext[];
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| 27 | extern char _data[], _sdata[], _edata[];
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| 28 | extern char __bss_start[], __bss_stop[];
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| 29 | extern char __init_begin[], __init_end[];
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| 30 | extern char _sinittext[], _einittext[];
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| 31 | extern char _end[];
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| 32 | extern char __per_cpu_load[], __per_cpu_start[], __per_cpu_end[];
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| 33 | extern char __kprobes_text_start[], __kprobes_text_end[];
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| 34 | extern char __entry_text_start[], __entry_text_end[];
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| 35 | extern char __start_rodata[], __end_rodata[];
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| 36 |
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| 37 |
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| 38 | extern char __ctors_start[], __ctors_end[];
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| 39 |
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| 40 | |
| 41 | * in asm/sections.h
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| 42 | #ifndef dereference_function_descriptor
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| 43 | #define dereference_function_descriptor(p) (p)
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| 44 | #endif
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| 45 |
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| 46 | |
| 47 | * in asm/sections.h
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| 48 | #ifndef arch_is_kernel_text
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| 49 | static inline int arch_is_kernel_text(unsigned long addr)
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| 50 | {
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| 51 | return 0;
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| 52 | }
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| 53 | #endif
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| 54 |
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| 55 | #ifndef arch_is_kernel_data
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| 56 | static inline int arch_is_kernel_data(unsigned long addr)
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| 57 | {
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| 58 | return 0;
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| 59 | }
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| 60 | #endif
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| 61 |
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| 62 | #endif
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