libsanitizer/sanitizer_common/sanitizer_allocator_report.cpp

   1 //===-- sanitizer_allocator_report.cpp --------------------------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 ///
   9 /// \file
  10 /// Shared allocator error reporting for ThreadSanitizer, MemorySanitizer, etc.
  11 ///
  12 //===----------------------------------------------------------------------===//
  13
  14 #include "sanitizer_allocator.h"
  15 #include "sanitizer_allocator_report.h"
  16 #include "sanitizer_common.h"
  17 #include "sanitizer_report_decorator.h"
  18
  19 namespace __sanitizer {
  20
  21 class ScopedAllocatorErrorReport {
  22  public:
  23   ScopedAllocatorErrorReport(const char *error_summary_,
  24                              const StackTrace *stack_)
  25       : error_summary(error_summary_),
  26         stack(stack_) {
  27     Printf("%s", d.Error());
  28   }
  29   ~ScopedAllocatorErrorReport() {
  30     Printf("%s", d.Default());
  31     stack->Print();
  32     PrintHintAllocatorCannotReturnNull();
  33     ReportErrorSummary(error_summary, stack);
  34   }
  35
  36  private:
  37   ScopedErrorReportLock lock;
  38   const char *error_summary;
  39   const StackTrace* const stack;
  40   const SanitizerCommonDecorator d;
  41 };
  42
  43 void NORETURN ReportCallocOverflow(uptr count, uptr size,
  44                                    const StackTrace *stack) {
  45   {
  46     ScopedAllocatorErrorReport report("calloc-overflow", stack);
  47     Report("ERROR: %s: calloc parameters overflow: count * size (%zd * %zd) "
  48            "cannot be represented in type size_t\n", SanitizerToolName, count,
  49            size);
  50   }
  51   Die();
  52 }
  53
  54 void NORETURN ReportReallocArrayOverflow(uptr count, uptr size,
  55                                          const StackTrace *stack) {
  56   {
  57     ScopedAllocatorErrorReport report("reallocarray-overflow", stack);
  58     Report(
  59         "ERROR: %s: reallocarray parameters overflow: count * size (%zd * %zd) "
  60         "cannot be represented in type size_t\n",
  61         SanitizerToolName, count, size);
  62   }
  63   Die();
  64 }
  65
  66 void NORETURN ReportPvallocOverflow(uptr size, const StackTrace *stack) {
  67   {
  68     ScopedAllocatorErrorReport report("pvalloc-overflow", stack);
  69     Report("ERROR: %s: pvalloc parameters overflow: size 0x%zx rounded up to "
  70            "system page size 0x%zx cannot be represented in type size_t\n",
  71            SanitizerToolName, size, GetPageSizeCached());
  72   }
  73   Die();
  74 }
  75
  76 void NORETURN ReportInvalidAllocationAlignment(uptr alignment,
  77                                                const StackTrace *stack) {
  78   {
  79     ScopedAllocatorErrorReport report("invalid-allocation-alignment", stack);
  80     Report("ERROR: %s: invalid allocation alignment: %zd, alignment must be a "
  81            "power of two\n", SanitizerToolName, alignment);
  82   }
  83   Die();
  84 }
  85
  86 void NORETURN ReportInvalidAlignedAllocAlignment(uptr size, uptr alignment,
  87                                                  const StackTrace *stack) {
  88   {
  89     ScopedAllocatorErrorReport report("invalid-aligned-alloc-alignment", stack);
  90 #if SANITIZER_POSIX
  91     Report("ERROR: %s: invalid alignment requested in "
  92            "aligned_alloc: %zd, alignment must be a power of two and the "
  93            "requested size 0x%zx must be a multiple of alignment\n",
  94            SanitizerToolName, alignment, size);
  95 #else
  96     Report("ERROR: %s: invalid alignment requested in aligned_alloc: %zd, "
  97            "the requested size 0x%zx must be a multiple of alignment\n",
  98            SanitizerToolName, alignment, size);
  99 #endif
 100   }
 101   Die();
 102 }
 103
 104 void NORETURN ReportInvalidPosixMemalignAlignment(uptr alignment,
 105                                                   const StackTrace *stack) {
 106   {
 107     ScopedAllocatorErrorReport report("invalid-posix-memalign-alignment",
 108                                       stack);
 109     Report(
 110         "ERROR: %s: invalid alignment requested in "
 111         "posix_memalign: %zd, alignment must be a power of two and a "
 112         "multiple of sizeof(void*) == %zd\n",
 113         SanitizerToolName, alignment, sizeof(void *));
 114   }
 115   Die();
 116 }
 117
 118 void NORETURN ReportAllocationSizeTooBig(uptr user_size, uptr max_size,
 119                                          const StackTrace *stack) {
 120   {
 121     ScopedAllocatorErrorReport report("allocation-size-too-big", stack);
 122     Report("ERROR: %s: requested allocation size 0x%zx exceeds maximum "
 123            "supported size of 0x%zx\n", SanitizerToolName, user_size, max_size);
 124   }
 125   Die();
 126 }
 127
 128 void NORETURN ReportOutOfMemory(uptr requested_size, const StackTrace *stack) {
 129   {
 130     ScopedAllocatorErrorReport report("out-of-memory", stack);
 131     ERROR_OOM("allocator is trying to allocate 0x%zx bytes\n", requested_size);
 132   }
 133   Die();
 134 }
 135
 136 void NORETURN ReportRssLimitExceeded(const StackTrace *stack) {
 137   {
 138     ScopedAllocatorErrorReport report("rss-limit-exceeded", stack);
 139     Report("ERROR: %s: allocator exceeded the RSS limit\n", SanitizerToolName);
 140   }
 141   Die();
 142 }
 143
 144 }  // namespace __sanitizer