projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | #ifndef _ASM_GENERIC_SECTIONS_H_ |
| 2 | #define _ASM_GENERIC_SECTIONS_H_ | |
| 3 | ||
| 4 | /* References to section boundaries */ | |
| 5 | ||
| 7f8998c7 GU |
6 | #include <linux/compiler.h> |
| 7 | ||
| 1622d1ab JL |
8 | /* |
| 9 | * Usage guidelines: | |
| 10 | * _text, _data: architecture specific, don't use them in arch-independent code | |
| 11 | * [_stext, _etext]: contains .text.* sections, may also contain .rodata.* | |
| 12 | * and/or .init.* sections | |
| 13 | * [_sdata, _edata]: contains .data.* sections, may also contain .rodata.* | |
| 14 | * and/or .init.* sections. | |
| 15 | * [__start_rodata, __end_rodata]: contains .rodata.* sections | |
| 16 | * [__init_begin, __init_end]: contains .init.* sections, but .init.text.* | |
| 17 | * may be out of this range on some architectures. | |
| 18 | * [_sinittext, _einittext]: contains .init.text.* sections | |
| 19 | * [__bss_start, __bss_stop]: contains BSS sections | |
| 20 | * | |
| 21 | * Following global variables are optional and may be unavailable on some | |
| 22 | * architectures and/or kernel configurations. | |
| 23 | * _text, _data | |
| 24 | * __kprobes_text_start, __kprobes_text_end | |
| 25 | * __entry_text_start, __entry_text_end | |
| 26 | * __ctors_start, __ctors_end | |
| 27 | */ | |
| 1da177e4 LT |
28 | extern char _text[], _stext[], _etext[]; |
| 29 | extern char _data[], _sdata[], _edata[]; | |
| 30 | extern char __bss_start[], __bss_stop[]; | |
| 31 | extern char __init_begin[], __init_end[]; | |
| 32 | extern char _sinittext[], _einittext[]; | |
| 33 | extern char _end[]; | |
| 3e5d8f97 | 34 | extern char __per_cpu_load[], __per_cpu_start[], __per_cpu_end[]; |
| d0aaff97 | 35 | extern char __kprobes_text_start[], __kprobes_text_end[]; |
| ea714547 | 36 | extern char __entry_text_start[], __entry_text_end[]; |
| a581c2a4 | 37 | extern char __start_rodata[], __end_rodata[]; |
| 1da177e4 | 38 | |
| b99b87f7 PO |
39 | /* Start and end of .ctors section - used for constructor calls. */ |
| 40 | extern char __ctors_start[], __ctors_end[]; | |
| 41 | ||
| 7f8998c7 GU |
42 | extern __visible const void __nosave_begin, __nosave_end; |
| 43 | ||
| deac93df JB |
44 | /* function descriptor handling (if any). Override |
| 45 | * in asm/sections.h */ | |
| 46 | #ifndef dereference_function_descriptor | |
| 47 | #define dereference_function_descriptor(p) (p) | |
| 48 | #endif | |
| 49 | ||
| 00afe029 MF |
50 | /* random extra sections (if any). Override |
| 51 | * in asm/sections.h */ | |
| 52 | #ifndef arch_is_kernel_text | |
| 53 | static inline int arch_is_kernel_text(unsigned long addr) | |
| 54 | { | |
| 55 | return 0; | |
| 56 | } | |
| 57 | #endif | |
| 58 | ||
| 59 | #ifndef arch_is_kernel_data | |
| 60 | static inline int arch_is_kernel_data(unsigned long addr) | |
| 61 | { | |
| 62 | return 0; | |
| 63 | } | |
| 64 | #endif | |
| 65 | ||
| 1da177e4 | 66 | #endif /* _ASM_GENERIC_SECTIONS_H_ */ |