lib/asan/asan_report.h

   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 NORETURN ReportStackOverflow(const SignalContext &sig);
  53 void NORETURN ReportSIGSEGV(const char *description, const SignalContext &sig);
  54 void NORETURN ReportNewDeleteSizeMismatch(uptr addr, uptr delete_size,
  55                                           BufferedStackTrace *free_stack);
  56 void NORETURN ReportDoubleFree(uptr addr, BufferedStackTrace *free_stack);
  57 void NORETURN ReportFreeNotMalloced(uptr addr, BufferedStackTrace *free_stack);
  58 void NORETURN ReportAllocTypeMismatch(uptr addr, BufferedStackTrace *free_stack,
  59                                       AllocType alloc_type,
  60                                       AllocType dealloc_type);
  61 void NORETURN
  62     ReportMallocUsableSizeNotOwned(uptr addr, BufferedStackTrace *stack);
  63 void NORETURN
  64     ReportSanitizerGetAllocatedSizeNotOwned(uptr addr,
  65                                             BufferedStackTrace *stack);
  66 void NORETURN
  67     ReportStringFunctionMemoryRangesOverlap(const char *function,
  68                                             const char *offset1, uptr length1,
  69                                             const char *offset2, uptr length2,
  70                                             BufferedStackTrace *stack);
  71 void NORETURN ReportStringFunctionSizeOverflow(uptr offset, uptr size,
  72                                                BufferedStackTrace *stack);
  73 void NORETURN
  74     ReportBadParamsToAnnotateContiguousContainer(uptr beg, uptr end,
  75                                                  uptr old_mid, uptr new_mid,
  76                                                  BufferedStackTrace *stack);
  77
  78 void NORETURN
  79 ReportODRViolation(const __asan_global *g1, u32 stack_id1,
  80                    const __asan_global *g2, u32 stack_id2);
  81
  82 // Mac-specific errors and warnings.
  83 void WarnMacFreeUnallocated(uptr addr, uptr zone_ptr, const char *zone_name,
  84                             BufferedStackTrace *stack);
  85 void NORETURN ReportMacMzReallocUnknown(uptr addr, uptr zone_ptr,
  86                                         const char *zone_name,
  87                                         BufferedStackTrace *stack);
  88 void NORETURN ReportMacCfReallocUnknown(uptr addr, uptr zone_ptr,
  89                                         const char *zone_name,
  90                                         BufferedStackTrace *stack);
  91
  92 }  // namespace __asan