cregit-Linux how code gets into the kernel

Release 4.11 arch/x86/include/asm/kasan.h

#ifndef _ASM_X86_KASAN_H

#define _ASM_X86_KASAN_H

#include <linux/const.h>

#define KASAN_SHADOW_OFFSET _AC(CONFIG_KASAN_SHADOW_OFFSET, UL)

/*
 * Compiler uses shadow offset assuming that addresses start
 * from 0. Kernel addresses don't start from 0, so shadow
 * for kernel really starts from compiler's shadow offset +
 * 'kernel address space start' >> KASAN_SHADOW_SCALE_SHIFT
 */

#define KASAN_SHADOW_START      (KASAN_SHADOW_OFFSET + \
                                        (0xffff800000000000ULL >> 3))
/* 47 bits for kernel address -> (47 - 3) bits for shadow */

#define KASAN_SHADOW_END        (KASAN_SHADOW_START + (1ULL << (47 - 3)))

#ifndef __ASSEMBLY__

#ifdef CONFIG_KASAN
void __init kasan_early_init(void);
void __init kasan_init(void);
#else

static inline void kasan_early_init(void) { }

Contributors

PersonTokensPropCommitsCommitProp
Andrey Ryabinin675.00%150.00%
Alexander Popov225.00%150.00%
Total8100.00%2100.00%


static inline void kasan_init(void) { }

Contributors

PersonTokensPropCommitsCommitProp
Andrey Ryabinin8100.00%1100.00%
Total8100.00%1100.00%

#endif #endif #endif

Overall Contributors

PersonTokensPropCommitsCommitProp
Andrey Ryabinin6394.03%266.67%
Alexander Popov45.97%133.33%
Total67100.00%3100.00%
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