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
19namespace __sanitizer {
20
21class ScopedAllocatorErrorReport {
22 public:
23 ScopedAllocatorErrorReport(const char *error_summary_,
24 const StackTrace *stack_)
25 : error_summary(error_summary_),
26 stack(stack_) {
27 Printf(format: "%s", d.Error());
28 }
29 ~ScopedAllocatorErrorReport() {
30 Printf(format: "%s", d.Default());
31 stack->Print();
32 PrintHintAllocatorCannotReturnNull();
33 ReportErrorSummary(error_type: error_summary, trace: stack);
34 }
35
36 private:
37 ScopedErrorReportLock lock;
38 const char *error_summary;
39 const StackTrace* const stack;
40 const SanitizerCommonDecorator d;
41};
42
43void NORETURN ReportCallocOverflow(uptr count, uptr size,
44 const StackTrace *stack) {
45 {
46 ScopedAllocatorErrorReport report("calloc-overflow", stack);
47 Report(format: "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
54void NORETURN ReportReallocArrayOverflow(uptr count, uptr size,
55 const StackTrace *stack) {
56 {
57 ScopedAllocatorErrorReport report("reallocarray-overflow", stack);
58 Report(
59 format: "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
66void NORETURN ReportPvallocOverflow(uptr size, const StackTrace *stack) {
67 {
68 ScopedAllocatorErrorReport report("pvalloc-overflow", stack);
69 Report(format: "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
76void NORETURN ReportInvalidAllocationAlignment(uptr alignment,
77 const StackTrace *stack) {
78 {
79 ScopedAllocatorErrorReport report("invalid-allocation-alignment", stack);
80 Report(format: "ERROR: %s: invalid allocation alignment: %zd, alignment must be a "
81 "power of two\n", SanitizerToolName, alignment);
82 }
83 Die();
84}
85
86void 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(format: "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
104void NORETURN ReportInvalidPosixMemalignAlignment(uptr alignment,
105 const StackTrace *stack) {
106 {
107 ScopedAllocatorErrorReport report("invalid-posix-memalign-alignment",
108 stack);
109 Report(
110 format: "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
118void NORETURN ReportAllocationSizeTooBig(uptr user_size, uptr max_size,
119 const StackTrace *stack) {
120 {
121 ScopedAllocatorErrorReport report("allocation-size-too-big", stack);
122 Report(format: "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
128void 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
136void NORETURN ReportRssLimitExceeded(const StackTrace *stack) {
137 {
138 ScopedAllocatorErrorReport report("rss-limit-exceeded", stack);
139 Report(format: "ERROR: %s: allocator exceeded the RSS limit\n", SanitizerToolName);
140 }
141 Die();
142}
143
144} // namespace __sanitizer
145