4adf24502e
Summary: The current `FailureHandler` mechanism was fairly opaque with regard to the failure reason due to using `CHECK(0)`. Scudo is a bit different from the other Sanitizers as it prefers to avoid spurious processing in its failure path. So we just `dieWithMessage` using a somewhat explicit string. Adapted the tests for the new strings. While this takes care of the `OnBadRequest` & `OnOOM` failures, the next step is probably to migrate the other Scudo failures in the same failes (header corruption, invalid state and so on). Reviewers: alekseyshl Reviewed By: alekseyshl Subscribers: filcab, mgorny, delcypher, #sanitizers, llvm-commits Differential Revision: https://reviews.llvm.org/D48199 llvm-svn: 334843
78 lines
2.8 KiB
C++
78 lines
2.8 KiB
C++
//===-- scudo_errors.cpp ----------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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///
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/// Verbose termination functions.
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///
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//===----------------------------------------------------------------------===//
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#include "scudo_utils.h"
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#include "sanitizer_common/sanitizer_flags.h"
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namespace __scudo {
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void NORETURN reportCallocOverflow(uptr Count, uptr Size) {
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dieWithMessage("calloc parameters overflow: count * size (%zd * %zd) cannot "
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"be represented with type size_t\n", Count, Size);
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}
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void NORETURN reportPvallocOverflow(uptr Size) {
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dieWithMessage("pvalloc parameters overflow: size 0x%zx rounded up to system "
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"page size 0x%zx cannot be represented in type size_t\n", Size,
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GetPageSizeCached());
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}
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void NORETURN reportAllocationAlignmentTooBig(uptr Alignment,
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uptr MaxAlignment) {
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dieWithMessage("invalid allocation alignment: %zd exceeds maximum supported "
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"allocation of %zd\n", Alignment, MaxAlignment);
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}
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void NORETURN reportAllocationAlignmentNotPowerOfTwo(uptr Alignment) {
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dieWithMessage("invalid allocation alignment: %zd, alignment must be a power "
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"of two\n", Alignment);
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}
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void NORETURN reportInvalidPosixMemalignAlignment(uptr Alignment) {
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dieWithMessage("invalid alignment requested in posix_memalign: %zd, alignment"
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" must be a power of two and a multiple of sizeof(void *) == %zd\n",
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Alignment, sizeof(void *)); // NOLINT
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}
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void NORETURN reportInvalidAlignedAllocAlignment(uptr Size, uptr Alignment) {
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#if SANITIZER_POSIX
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dieWithMessage("invalid alignment requested in aligned_alloc: %zd, alignment "
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"must be a power of two and the requested size 0x%zx must be a multiple "
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"of alignment\n", Alignment, Size);
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#else
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dieWithMessage("invalid alignment requested in aligned_alloc: %zd, the "
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"requested size 0x%zx must be a multiple of alignment\n", Alignment,
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Size);
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#endif
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}
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void NORETURN reportAllocationSizeTooBig(uptr UserSize, uptr TotalSize,
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uptr MaxSize) {
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dieWithMessage("requested allocation size 0x%zx (0x%zx after adjustments) "
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"exceeds maximum supported size of 0x%zx\n", UserSize, TotalSize,
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MaxSize);
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}
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void NORETURN reportRssLimitExceeded() {
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dieWithMessage("specified RSS limit exceeded, currently set to "
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"soft_rss_limit_mb=%zd\n", common_flags()->soft_rss_limit_mb);
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}
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void NORETURN reportOutOfMemory(uptr RequestedSize) {
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dieWithMessage("allocator is out of memory trying to allocate 0x%zx bytes\n",
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RequestedSize);
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}
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} // namespace __scudo
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