98 lines
2.5 KiB
C
98 lines
2.5 KiB
C
/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
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/*
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* Copyright (c) 2019 Amlogic, Inc. All rights reserved.
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*/
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#ifndef __AML_UASAN_H__
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#define __AML_UASAN_H__
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/* for red zone between each section */
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#define SECTION_RED_ZONE_NUM 8
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#define MEM_SECTION_RED_ZONE_SIZE 256
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#define MEM_SECTION_RED_ZONE_MASK 0xff
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#define UASAN_SHADOW_SCALE_SHIFT 3
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#define UASAN_SHADOW_SCALE_SIZE (1UL << UASAN_SHADOW_SCALE_SHIFT)
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#define UASAN_SHADOW_MASK (UASAN_SHADOW_SCALE_SIZE - 1)
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#define UASAN_FREE_PAGE 0xFF /* page was freed */
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#define UASAN_PAGE_REDZONE 0xFE /* redzone for kmalloc_large allocations */
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#define UASAN_MALLOC_REDZONE 0xFC /* redzone inside slub object */
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#define UASAN_MALLOC_FREE 0xFB /* object was freed (kmem_cache_free/kfree) */
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#define UASAN_GLOBAL_REDZONE 0xFA /* redzone for global variable */
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/*
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* Stack redzone shadow values
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* (Those are compiler's ABI, don't change them)
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*/
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#define UASAN_STACK_LEFT 0xF1
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#define UASAN_STACK_MID 0xF2
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#define UASAN_STACK_RIGHT 0xF3
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#define UASAN_STACK_PARTIAL 0xF4
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#define UASAN_USE_AFTER_SCOPE 0xF8
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/*
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* alloca redzone shadow values
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*/
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#define UASAN_ALLOCA_LEFT 0xCA
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#define UASAN_ALLOCA_RIGHT 0xCB
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#define UASAN_ALLOCA_REDZONE_SIZE 32
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#define UASAN_STACK_SIZE (128 * 1024)
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#define UASAN_UBOOT_SIZE (256 * 1024 * 1024UL)
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#ifndef __ASSEMBLY__
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struct uasan_report_info {
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const void *access_addr;
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const void *first_bad_addr;
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size_t access_size;
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int is_write;
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unsigned long ip;
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};
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/* The layout of struct dictated by compiler */
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struct uasan_source_location {
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const char *filename;
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int line_no;
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int column_no;
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};
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/* The layout of struct dictated by compiler */
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struct uasan_global {
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/* Address of the beginning of the global variable. */
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const void *beg;
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/* Size of the global variable. */
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size_t size;
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/* Size of the variable + size of the red zone. 32 bytes aligned */
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size_t size_with_redzone;
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const void *name;
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/* Name of the module where the global variable is declared. */
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const void *module_name;
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unsigned long has_dynamic_init; /* This needed for C++ */
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#if KASAN_ABI_VERSION >= 4
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struct uasan_source_location *location;
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#endif
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#if KASAN_ABI_VERSION >= 5
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char *odr_indicator;
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#endif
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};
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/* Used for constructor calls. */
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typedef void (*ctor_fn_t)(void);
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unsigned long mem_to_shadow(const void *mem_addr);
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void uasan_poison_object(unsigned long addr, unsigned long size, unsigned tag);
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extern const char __init_array_start[];
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extern const char __init_array_end[];
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void uasan_alloc(void *ptr, unsigned long size);
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void uasan_free(void *ptr, unsigned long size);
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#endif
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#endif
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