asan.h File Reference

#include <types.h>

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Data Structures
struct	asan_source_location
struct	asan_global

Macros
#define	ASAN_SHADOW_SCALE_SHIFT   3
#define	ASAN_SHADOW_SCALE_SIZE   (1UL << ASAN_SHADOW_SCALE_SHIFT)
#define	ASAN_SHADOW_MASK   (ASAN_SHADOW_SCALE_SIZE - 1)
#define	ASAN_GLOBAL_REDZONE   0xFA
#define	ASAN_STACK_LEFT   0xF1
#define	ASAN_STACK_MID   0xF2
#define	ASAN_STACK_RIGHT   0xF3
#define	ASAN_STACK_PARTIAL   0xF4
#define	ASAN_USE_AFTER_SCOPE   0xF8
#define	_RET_IP_   ((unsigned long)__builtin_return_address(0))
#define	likely(x)   __builtin_expect(!!(x), 1)
#define	unlikely(x)   __builtin_expect(!!(x), 0)
#define	WARN_ON(condition)
#define	ASAN_ABI_VERSION   5

Functions
void	asan_unpoison_shadow (const void *address, size_t size)
void	asan_report (unsigned long addr, size_t size, bool is_write, unsigned long ip)
void	asan_init (void)
void	check_memory_region (unsigned long addr, size_t size, bool write, unsigned long ret_ip)
uintptr_t	__asan_shadow_offset (uintptr_t addr)
void	__asan_register_globals (struct asan_global *globals, size_t size)
void	__asan_unregister_globals (struct asan_global *globals, size_t size)
void	__asan_poison_stack_memory (const void *addr, size_t size)
void	__asan_unpoison_stack_memory (const void *addr, size_t size)
void	__asan_load1 (unsigned long addr)
void	__asan_store1 (unsigned long addr)
void	__asan_load2 (unsigned long addr)
void	__asan_store2 (unsigned long addr)
void	__asan_load4 (unsigned long addr)
void	__asan_store4 (unsigned long addr)
void	__asan_load8 (unsigned long addr)
void	__asan_store8 (unsigned long addr)
void	__asan_load16 (unsigned long addr)
void	__asan_store16 (unsigned long addr)
void	__asan_loadN (unsigned long addr, size_t size)
void	__asan_storeN (unsigned long addr, size_t size)
void	__asan_load1_noabort (unsigned long addr)
void	__asan_store1_noabort (unsigned long addr)
void	__asan_load2_noabort (unsigned long addr)
void	__asan_store2_noabort (unsigned long addr)
void	__asan_load4_noabort (unsigned long addr)
void	__asan_store4_noabort (unsigned long addr)
void	__asan_load8_noabort (unsigned long addr)
void	__asan_store8_noabort (unsigned long addr)
void	__asan_load16_noabort (unsigned long addr)
void	__asan_store16_noabort (unsigned long addr)
void	__asan_loadN_noabort (unsigned long addr, size_t size)
void	__asan_storeN_noabort (unsigned long addr, size_t size)
void	__asan_handle_no_return (void)
void	__asan_set_shadow_00 (const void *addr, size_t size)
void	__asan_set_shadow_f1 (const void *addr, size_t size)
void	__asan_set_shadow_f2 (const void *addr, size_t size)
void	__asan_set_shadow_f3 (const void *addr, size_t size)
void	__asan_set_shadow_f5 (const void *addr, size_t size)
void	__asan_set_shadow_f8 (const void *addr, size_t size)
void	__asan_report_load1_noabort (unsigned long addr)
void	__asan_report_store1_noabort (unsigned long addr)
void	__asan_report_load2_noabort (unsigned long addr)
void	__asan_report_store2_noabort (unsigned long addr)
void	__asan_report_load4_noabort (unsigned long addr)
void	__asan_report_store4_noabort (unsigned long addr)
void	__asan_report_load8_noabort (unsigned long addr)
void	__asan_report_store8_noabort (unsigned long addr)
void	__asan_report_load16_noabort (unsigned long addr)
void	__asan_report_store16_noabort (unsigned long addr)
void	__asan_report_load_n_noabort (unsigned long addr, size_t size)
void	__asan_report_store_n_noabort (unsigned long addr, size_t size)

Macro Definition Documentation

_RET_IP_

#define _RET_IP_   ((unsigned long)__builtin_return_address(0))

Definition at line 20 of file asan.h.

ASAN_ABI_VERSION

#define ASAN_ABI_VERSION   5

Definition at line 30 of file asan.h.

ASAN_GLOBAL_REDZONE

#define ASAN_GLOBAL_REDZONE   0xFA

Definition at line 13 of file asan.h.

ASAN_SHADOW_MASK

#define ASAN_SHADOW_MASK   (ASAN_SHADOW_SCALE_SIZE - 1)

Definition at line 11 of file asan.h.

ASAN_SHADOW_SCALE_SHIFT

#define ASAN_SHADOW_SCALE_SHIFT   3

Definition at line 8 of file asan.h.

ASAN_SHADOW_SCALE_SIZE

#define ASAN_SHADOW_SCALE_SIZE   (1UL << ASAN_SHADOW_SCALE_SHIFT)

Definition at line 10 of file asan.h.

ASAN_STACK_LEFT

#define ASAN_STACK_LEFT   0xF1

Definition at line 14 of file asan.h.

ASAN_STACK_MID

#define ASAN_STACK_MID   0xF2

Definition at line 15 of file asan.h.

ASAN_STACK_PARTIAL

#define ASAN_STACK_PARTIAL   0xF4

Definition at line 17 of file asan.h.

ASAN_STACK_RIGHT

#define ASAN_STACK_RIGHT   0xF3

Definition at line 16 of file asan.h.

ASAN_USE_AFTER_SCOPE

#define ASAN_USE_AFTER_SCOPE   0xF8

Definition at line 18 of file asan.h.

likely

#define likely

(

x

)

__builtin_expect(!!(x), 1)

Definition at line 21 of file asan.h.

unlikely

#define unlikely

(

x

)

__builtin_expect(!!(x), 0)

Definition at line 22 of file asan.h.

WARN_ON

#define WARN_ON

(

condition

)

Value:

        ({      \
        int __ret_warn_on = !!(condition);      \
        unlikely(__ret_warn_on);        \
})

Definition at line 24 of file asan.h.

Function Documentation

__asan_handle_no_return()

void __asan_handle_no_return

(

void

)

Definition at line 391 of file asan.c.

__asan_load1()

void __asan_load1

(

unsigned long

addr

)

__asan_load16()

void __asan_load16

(

unsigned long

addr

)

__asan_load16_noabort()

void __asan_load16_noabort

(

unsigned long

addr

)

__asan_load1_noabort()

void __asan_load1_noabort

(

unsigned long

addr

)

__asan_load2()

void __asan_load2

(

unsigned long

addr

)

__asan_load2_noabort()

void __asan_load2_noabort

(

unsigned long

addr

)

__asan_load4()

void __asan_load4

(

unsigned long

addr

)

__asan_load4_noabort()

void __asan_load4_noabort

(

unsigned long

addr

)

__asan_load8()

void __asan_load8

(

unsigned long

addr

)

__asan_load8_noabort()

void __asan_load8_noabort

(

unsigned long

addr

)

__asan_loadN()

void __asan_loadN	(	unsigned long	addr,
		size_t	size
	)

Definition at line 371 of file asan.c.

References _RET_IP_, addr, and check_memory_region().

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__asan_loadN_noabort()

void __asan_loadN_noabort	(	unsigned long	addr,
		size_t	size
	)

Definition at line 381 of file asan.c.

References _RET_IP_, addr, and check_memory_region().

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__asan_poison_stack_memory()

void __asan_poison_stack_memory	(	const void *	addr,
		size_t	size
	)

Definition at line 336 of file asan.c.

References addr, ALIGN_UP, asan_poison_shadow(), ASAN_SHADOW_SCALE_SIZE, and ASAN_USE_AFTER_SCOPE.

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__asan_register_globals()

void __asan_register_globals	(	struct asan_global *	globals,
		size_t	size
	)

Definition at line 292 of file asan.c.

References register_global().

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__asan_report_load16_noabort()

void __asan_report_load16_noabort

(

unsigned long

addr

)

__asan_report_load1_noabort()

void __asan_report_load1_noabort

(

unsigned long

addr

)

__asan_report_load2_noabort()

void __asan_report_load2_noabort

(

unsigned long

addr

)

__asan_report_load4_noabort()

void __asan_report_load4_noabort

(

unsigned long

addr

)

__asan_report_load8_noabort()

void __asan_report_load8_noabort

(

unsigned long

addr

)

__asan_report_load_n_noabort()

void __asan_report_load_n_noabort	(	unsigned long	addr,
		size_t	size
	)

Definition at line 431 of file asan.c.

References _RET_IP_, addr, and asan_report().

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__asan_report_store16_noabort()

void __asan_report_store16_noabort

(

unsigned long

addr

)

__asan_report_store1_noabort()

void __asan_report_store1_noabort

(

unsigned long

addr

)

__asan_report_store2_noabort()

void __asan_report_store2_noabort

(

unsigned long

addr

)

__asan_report_store4_noabort()

void __asan_report_store4_noabort

(

unsigned long

addr

)

__asan_report_store8_noabort()

void __asan_report_store8_noabort

(

unsigned long

addr

)

__asan_report_store_n_noabort()

void __asan_report_store_n_noabort	(	unsigned long	addr,
		size_t	size
	)

Definition at line 436 of file asan.c.

References _RET_IP_, addr, and asan_report().

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__asan_set_shadow_00()

void __asan_set_shadow_00	(	const void *	addr,
		size_t	size
	)

__asan_set_shadow_f1()

void __asan_set_shadow_f1	(	const void *	addr,
		size_t	size
	)

__asan_set_shadow_f2()

void __asan_set_shadow_f2	(	const void *	addr,
		size_t	size
	)

__asan_set_shadow_f3()

void __asan_set_shadow_f3	(	const void *	addr,
		size_t	size
	)

__asan_set_shadow_f5()

void __asan_set_shadow_f5	(	const void *	addr,
		size_t	size
	)

__asan_set_shadow_f8()

void __asan_set_shadow_f8	(	const void *	addr,
		size_t	size
	)

__asan_shadow_offset()

uintptr_t __asan_shadow_offset

(

uintptr_t

addr

)

Definition at line 270 of file asan.c.

References _car_region_start, and ASAN_SHADOW_SCALE_SHIFT.

__asan_store1()

void __asan_store1

(

unsigned long

addr

)

__asan_store16()

void __asan_store16

(

unsigned long

addr

)

__asan_store16_noabort()

void __asan_store16_noabort

(

unsigned long

addr

)

__asan_store1_noabort()

void __asan_store1_noabort

(

unsigned long

addr

)

__asan_store2()

void __asan_store2

(

unsigned long

addr

)

__asan_store2_noabort()

void __asan_store2_noabort

(

unsigned long

addr

)

__asan_store4()

void __asan_store4

(

unsigned long

addr

)

__asan_store4_noabort()

void __asan_store4_noabort

(

unsigned long

addr

)

__asan_store8()

void __asan_store8

(

unsigned long

addr

)

__asan_store8_noabort()

void __asan_store8_noabort

(

unsigned long

addr

)

__asan_storeN()

void __asan_storeN	(	unsigned long	addr,
		size_t	size
	)

Definition at line 376 of file asan.c.

References _RET_IP_, addr, and check_memory_region().

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__asan_storeN_noabort()

void __asan_storeN_noabort	(	unsigned long	addr,
		size_t	size
	)

Definition at line 386 of file asan.c.

References _RET_IP_, addr, and check_memory_region().

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__asan_unpoison_stack_memory()

void __asan_unpoison_stack_memory	(	const void *	addr,
		size_t	size
	)

Definition at line 342 of file asan.c.

References addr, and asan_unpoison_shadow().

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__asan_unregister_globals()

void __asan_unregister_globals	(	struct asan_global *	globals,
		size_t	size
	)

Definition at line 300 of file asan.c.

asan_init()

void asan_init

(

void

)

Definition at line 324 of file asan.c.

References _car_region_start, _eheap, and asan_unpoison_shadow().

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asan_report()

void asan_report	(	unsigned long	addr,
		size_t	size,
		bool	is_write,
		unsigned long	ip
	)

Definition at line 224 of file asan.c.

References addr, BIOS_ERR, get_shadow_bug_type(), and printk.

Referenced by __asan_report_load_n_noabort(), __asan_report_store_n_noabort(), and check_memory_region_inline().

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asan_unpoison_shadow()

void asan_unpoison_shadow	(	const void *	address,
		size_t	size
	)

Definition at line 49 of file asan.c.

References address, asan_mem_to_shadow(), asan_poison_shadow(), and ASAN_SHADOW_MASK.

Referenced by __asan_unpoison_stack_memory(), asan_init(), and register_global().

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check_memory_region()

void check_memory_region	(	unsigned long	addr,
		size_t	size,
		bool	write,
		unsigned long	ret_ip
	)

Definition at line 264 of file asan.c.

References addr, and check_memory_region_inline().

Referenced by __asan_loadN(), __asan_loadN_noabort(), __asan_storeN(), __asan_storeN_noabort(), memcpy(), memmove(), and memset().

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