asan_report.h   [plain text]

//===-- asan_report.h -------------------------------------------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file is a part of AddressSanitizer, an address sanity checker.
//
// ASan-private header for error reporting functions.
//===----------------------------------------------------------------------===//

#include "asan_allocator.h"
#include "asan_internal.h"
#include "asan_thread.h"

namespace __asan {

struct StackVarDescr {
  uptr beg;
  uptr size;
  const char *name_pos;
  uptr name_len;
};

struct AddressDescription {
  char *name;
  uptr name_size;
  uptr region_address;
  uptr region_size;
  const char *region_kind;
};

// The following functions prints address description depending
// on the memory type (shadow/heap/stack/global).
void DescribeHeapAddress(uptr addr, uptr access_size);
bool DescribeAddressIfGlobal(uptr addr, uptr access_size);
bool DescribeAddressRelativeToGlobal(uptr addr, uptr access_size,
                                     const __asan_global &g);
bool IsAddressNearGlobal(uptr addr, const __asan_global &g);
bool GetInfoForAddressIfGlobal(uptr addr, AddressDescription *descr);
bool DescribeAddressIfShadow(uptr addr, AddressDescription *descr = nullptr,
                             bool print = true);
bool ParseFrameDescription(const char *frame_descr,
                           InternalMmapVector<StackVarDescr> *vars);
bool DescribeAddressIfStack(uptr addr, uptr access_size);
// Determines memory type on its own.
void DescribeAddress(uptr addr, uptr access_size);

void DescribeThread(AsanThreadContext *context);

// Different kinds of error reports.
void NORETURN
    ReportStackOverflow(uptr pc, uptr sp, uptr bp, void *context, uptr addr);
void NORETURN ReportSIGSEGV(const char *description, uptr pc, uptr sp, uptr bp,
                            void *context, uptr addr);
void NORETURN ReportNewDeleteSizeMismatch(uptr addr, uptr delete_size,
                                          BufferedStackTrace *free_stack);
void NORETURN ReportDoubleFree(uptr addr, BufferedStackTrace *free_stack);
void NORETURN ReportFreeNotMalloced(uptr addr, BufferedStackTrace *free_stack);
void NORETURN ReportAllocTypeMismatch(uptr addr, BufferedStackTrace *free_stack,
                                      AllocType alloc_type,
                                      AllocType dealloc_type);
void NORETURN
    ReportMallocUsableSizeNotOwned(uptr addr, BufferedStackTrace *stack);
void NORETURN
    ReportSanitizerGetAllocatedSizeNotOwned(uptr addr,
                                            BufferedStackTrace *stack);
void NORETURN
    ReportStringFunctionMemoryRangesOverlap(const char *function,
                                            const char *offset1, uptr length1,
                                            const char *offset2, uptr length2,
                                            BufferedStackTrace *stack);
void NORETURN ReportStringFunctionSizeOverflow(uptr offset, uptr size,
                                               BufferedStackTrace *stack);
void NORETURN
    ReportBadParamsToAnnotateContiguousContainer(uptr beg, uptr end,
                                                 uptr old_mid, uptr new_mid,
                                                 BufferedStackTrace *stack);

void NORETURN
ReportODRViolation(const __asan_global *g1, u32 stack_id1,
                   const __asan_global *g2, u32 stack_id2);

// Mac-specific errors and warnings.
void WarnMacFreeUnallocated(uptr addr, uptr zone_ptr, const char *zone_name,
                            BufferedStackTrace *stack);
void NORETURN ReportMacMzReallocUnknown(uptr addr, uptr zone_ptr,
                                        const char *zone_name,
                                        BufferedStackTrace *stack);
void NORETURN ReportMacCfReallocUnknown(uptr addr, uptr zone_ptr,
                                        const char *zone_name,
                                        BufferedStackTrace *stack);

}  // namespace __asan