1 //===-- asan_report.h -------------------------------------------*- C++ -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This file is a part of AddressSanitizer, an address sanity checker.
11 //
12 // ASan-private header for error reporting functions.
13 //===----------------------------------------------------------------------===//
14 
15 #include "asan_allocator.h"
16 #include "asan_internal.h"
17 #include "asan_thread.h"
18 
19 namespace __asan {
20 
21 struct StackVarDescr {
22   uptr beg;
23   uptr size;
24   const char *name_pos;
25   uptr name_len;
26 };
27 
28 struct AddressDescription {
29   char *name;
30   uptr name_size;
31   uptr region_address;
32   uptr region_size;
33   const char *region_kind;
34 };
35 
36 // Returns the number of globals close to the provided address and copies
37 // them to "globals" array.
38 int GetGlobalsForAddress(uptr addr, __asan_global *globals, u32 *reg_sites,
39                          int max_globals);
40 bool GetInfoForAddressIfGlobal(uptr addr, AddressDescription *descr);
41 // The following functions prints address description depending
42 // on the memory type (shadow/heap/stack/global).
43 void DescribeHeapAddress(uptr addr, uptr access_size);
44 bool DescribeAddressIfShadow(uptr addr, AddressDescription *descr = nullptr,
45                              bool print = true);
46 bool ParseFrameDescription(const char *frame_descr,
47                            InternalMmapVector<StackVarDescr> *vars);
48 bool DescribeAddressIfStack(uptr addr, uptr access_size);
49 void DescribeThread(AsanThreadContext *context);
50 
51 // Different kinds of error reports.
52 void ReportGenericError(uptr pc, uptr bp, uptr sp, uptr addr, bool is_write,
53                         uptr access_size, u32 exp, bool fatal);
54 void ReportStackOverflow(const SignalContext &sig);
55 void ReportDeadlySignal(const char *description, const SignalContext &sig);
56 void ReportNewDeleteSizeMismatch(uptr addr, uptr delete_size,
57                                  BufferedStackTrace *free_stack);
58 void ReportDoubleFree(uptr addr, BufferedStackTrace *free_stack);
59 void ReportFreeNotMalloced(uptr addr, BufferedStackTrace *free_stack);
60 void ReportAllocTypeMismatch(uptr addr, BufferedStackTrace *free_stack,
61                              AllocType alloc_type,
62                              AllocType dealloc_type);
63 void ReportMallocUsableSizeNotOwned(uptr addr, BufferedStackTrace *stack);
64 void ReportSanitizerGetAllocatedSizeNotOwned(uptr addr,
65                                              BufferedStackTrace *stack);
66 void ReportStringFunctionMemoryRangesOverlap(const char *function,
67                                              const char *offset1, uptr length1,
68                                              const char *offset2, uptr length2,
69                                              BufferedStackTrace *stack);
70 void ReportStringFunctionSizeOverflow(uptr offset, uptr size,
71                                       BufferedStackTrace *stack);
72 void ReportBadParamsToAnnotateContiguousContainer(uptr beg, uptr end,
73                                                   uptr old_mid, uptr new_mid,
74                                                   BufferedStackTrace *stack);
75 
76 void ReportODRViolation(const __asan_global *g1, u32 stack_id1,
77                         const __asan_global *g2, u32 stack_id2);
78 
79 // Mac-specific errors and warnings.
80 void ReportMacMzReallocUnknown(uptr addr, uptr zone_ptr,
81                                const char *zone_name,
82                                BufferedStackTrace *stack);
83 void ReportMacCfReallocUnknown(uptr addr, uptr zone_ptr,
84                                const char *zone_name,
85                                BufferedStackTrace *stack);
86 
87 }  // namespace __asan
88