Contributors: 20
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Thierry Reding |
143 |
36.67% |
1 |
4.55% |
| Mike Frysinger |
39 |
10.00% |
1 |
4.55% |
| Dan Aloni |
32 |
8.21% |
1 |
4.55% |
| Bartosz Golaszewski |
29 |
7.44% |
1 |
4.55% |
| Rusty Russell |
21 |
5.38% |
1 |
4.55% |
| Sergey Senozhatsky |
18 |
4.62% |
1 |
4.55% |
| Andi Kleen |
18 |
4.62% |
3 |
13.64% |
| Masami Hiramatsu |
16 |
4.10% |
1 |
4.55% |
| James Bottomley |
12 |
3.08% |
1 |
4.55% |
| Geert Uytterhoeven |
11 |
2.82% |
1 |
4.55% |
| Peter Oberparleiter |
9 |
2.31% |
1 |
4.55% |
| Jiri Olsa |
8 |
2.05% |
1 |
4.55% |
| Prasanna S. Panchamukhi |
8 |
2.05% |
1 |
4.55% |
| Jakub Kiciński |
6 |
1.54% |
1 |
4.55% |
| Heiko Carstens |
6 |
1.54% |
1 |
4.55% |
| David Howells |
5 |
1.28% |
1 |
4.55% |
| Tejun Heo |
3 |
0.77% |
1 |
4.55% |
| Andrew Morton |
3 |
0.77% |
1 |
4.55% |
| Kees Cook |
2 |
0.51% |
1 |
4.55% |
| Greg Kroah-Hartman |
1 |
0.26% |
1 |
4.55% |
| Total |
390 |
|
22 |
|
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_GENERIC_SECTIONS_H_
#define _ASM_GENERIC_SECTIONS_H_
/* References to section boundaries */
#include <linux/compiler.h>
#include <linux/types.h>
/*
* Usage guidelines:
* _text, _data: architecture specific, don't use them in arch-independent code
* [_stext, _etext]: contains .text.* sections, may also contain .rodata.*
* and/or .init.* sections
* [_sdata, _edata]: contains .data.* sections, may also contain .rodata.*
* and/or .init.* sections.
* [__start_rodata, __end_rodata]: contains .rodata.* sections
* [__start_ro_after_init, __end_ro_after_init]:
* contains .data..ro_after_init section
* [__init_begin, __init_end]: contains .init.* sections, but .init.text.*
* may be out of this range on some architectures.
* [_sinittext, _einittext]: contains .init.text.* sections
* [__bss_start, __bss_stop]: contains BSS sections
*
* Following global variables are optional and may be unavailable on some
* architectures and/or kernel configurations.
* _text, _data
* __kprobes_text_start, __kprobes_text_end
* __entry_text_start, __entry_text_end
* __ctors_start, __ctors_end
* __irqentry_text_start, __irqentry_text_end
* __softirqentry_text_start, __softirqentry_text_end
* __start_opd, __end_opd
*/
extern char _text[], _stext[], _etext[];
extern char _data[], _sdata[], _edata[];
extern char __bss_start[], __bss_stop[];
extern char __init_begin[], __init_end[];
extern char _sinittext[], _einittext[];
extern char __start_ro_after_init[], __end_ro_after_init[];
extern char _end[];
extern char __per_cpu_load[], __per_cpu_start[], __per_cpu_end[];
extern char __kprobes_text_start[], __kprobes_text_end[];
extern char __entry_text_start[], __entry_text_end[];
extern char __start_rodata[], __end_rodata[];
extern char __irqentry_text_start[], __irqentry_text_end[];
extern char __softirqentry_text_start[], __softirqentry_text_end[];
extern char __start_once[], __end_once[];
/* Start and end of .ctors section - used for constructor calls. */
extern char __ctors_start[], __ctors_end[];
/* Start and end of .opd section - used for function descriptors. */
extern char __start_opd[], __end_opd[];
extern __visible const void __nosave_begin, __nosave_end;
/* Function descriptor handling (if any). Override in asm/sections.h */
#ifndef dereference_function_descriptor
#define dereference_function_descriptor(p) (p)
#define dereference_kernel_function_descriptor(p) (p)
#endif
/* random extra sections (if any). Override
* in asm/sections.h */
#ifndef arch_is_kernel_text
static inline int arch_is_kernel_text(unsigned long addr)
{
return 0;
}
#endif
#ifndef arch_is_kernel_data
static inline int arch_is_kernel_data(unsigned long addr)
{
return 0;
}
#endif
/**
* memory_contains - checks if an object is contained within a memory region
* @begin: virtual address of the beginning of the memory region
* @end: virtual address of the end of the memory region
* @virt: virtual address of the memory object
* @size: size of the memory object
*
* Returns: true if the object specified by @virt and @size is entirely
* contained within the memory region defined by @begin and @end, false
* otherwise.
*/
static inline bool memory_contains(void *begin, void *end, void *virt,
size_t size)
{
return virt >= begin && virt + size <= end;
}
/**
* memory_intersects - checks if the region occupied by an object intersects
* with another memory region
* @begin: virtual address of the beginning of the memory regien
* @end: virtual address of the end of the memory region
* @virt: virtual address of the memory object
* @size: size of the memory object
*
* Returns: true if an object's memory region, specified by @virt and @size,
* intersects with the region specified by @begin and @end, false otherwise.
*/
static inline bool memory_intersects(void *begin, void *end, void *virt,
size_t size)
{
void *vend = virt + size;
return (virt >= begin && virt < end) || (vend >= begin && vend < end);
}
/**
* init_section_contains - checks if an object is contained within the init
* section
* @virt: virtual address of the memory object
* @size: size of the memory object
*
* Returns: true if the object specified by @virt and @size is entirely
* contained within the init section, false otherwise.
*/
static inline bool init_section_contains(void *virt, size_t size)
{
return memory_contains(__init_begin, __init_end, virt, size);
}
/**
* init_section_intersects - checks if the region occupied by an object
* intersects with the init section
* @virt: virtual address of the memory object
* @size: size of the memory object
*
* Returns: true if an object's memory region, specified by @virt and @size,
* intersects with the init section, false otherwise.
*/
static inline bool init_section_intersects(void *virt, size_t size)
{
return memory_intersects(__init_begin, __init_end, virt, size);
}
/**
* is_kernel_rodata - checks if the pointer address is located in the
* .rodata section
*
* @addr: address to check
*
* Returns: true if the address is located in .rodata, false otherwise.
*/
static inline bool is_kernel_rodata(unsigned long addr)
{
return addr >= (unsigned long)__start_rodata &&
addr < (unsigned long)__end_rodata;
}
#endif /* _ASM_GENERIC_SECTIONS_H_ */