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Diffstat (limited to 'lib/gwp_asan/options.inc')
-rw-r--r-- | lib/gwp_asan/options.inc | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/lib/gwp_asan/options.inc b/lib/gwp_asan/options.inc new file mode 100644 index 000000000000..9042b11895ae --- /dev/null +++ b/lib/gwp_asan/options.inc @@ -0,0 +1,41 @@ +//===-- options.inc ---------------------------------------------*- C++ -*-===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#ifndef GWP_ASAN_OPTION +#error "Define GWP_ASAN_OPTION prior to including this file!" +#endif + +GWP_ASAN_OPTION(bool, Enabled, true, "Is GWP-ASan enabled? Defaults to true.") + +GWP_ASAN_OPTION( + bool, PerfectlyRightAlign, false, + "When allocations are right-aligned, should we perfectly align them up to " + "the page boundary? By default (false), we round up allocation size to the " + "nearest power of two (1, 2, 4, 8, 16) up to a maximum of 16-byte " + "alignment for performance reasons. Setting this to true can find single " + "byte buffer-overflows for multibyte allocations at the cost of " + "performance, and may be incompatible with some architectures.") + +GWP_ASAN_OPTION( + int, MaxSimultaneousAllocations, 16, + "Number of usable guarded slots in the allocation pool. Defaults to 16.") + +GWP_ASAN_OPTION(int, SampleRate, 5000, + "The probability (1 / SampleRate) that an allocation is " + "selected for GWP-ASan sampling. Default is 5000. Sample rates " + "up to (2^31 - 1) are supported.") + +GWP_ASAN_OPTION( + bool, InstallSignalHandlers, true, + "Install GWP-ASan signal handlers for SIGSEGV during dynamic loading. This " + "allows better error reports by providing stack traces for allocation and " + "deallocation when reporting a memory error. GWP-ASan's signal handler " + "will forward the signal to any previously-installed handler, and user " + "programs that install further signal handlers should make sure they do " + "the same. Note, if the previously installed SIGSEGV handler is SIG_IGN, " + "we terminate the process after dumping the error report.") |