blob: a6e8373a5170f8d226350c7eb0459b2f8581bf2f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
|
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_SECTIONS_H
#define _ASM_X86_SECTIONS_H
#define arch_is_kernel_initmem_freed arch_is_kernel_initmem_freed
#include <asm-generic/sections.h>
#include <asm/extable.h>
extern char __brk_base[], __brk_limit[];
extern char __end_rodata_aligned[];
#if defined(CONFIG_X86_64)
extern char __end_rodata_hpage_align[];
#endif
extern char __end_of_kernel_reserve[];
extern unsigned long _brk_start, _brk_end;
static inline bool arch_is_kernel_initmem_freed(unsigned long addr)
{
/*
* If _brk_start has not been cleared, brk allocation is incomplete,
* and we can not make assumptions about its use.
*/
if (_brk_start)
return 0;
/*
* After brk allocation is complete, space between _brk_end and _end
* is available for allocation.
*/
return addr >= _brk_end && addr < (unsigned long)&_end;
}
#endif /* _ASM_X86_SECTIONS_H */
|
