forked from OSchip/llvm-project
56 lines
2.4 KiB
C++
56 lines
2.4 KiB
C++
//===-- esan_flags.inc ------------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// Esan runtime flags.
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//
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//===----------------------------------------------------------------------===//
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#ifndef ESAN_FLAG
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# error "Define ESAN_FLAG prior to including this file!"
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#endif
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// ESAN_FLAG(Type, Name, DefaultValue, Description)
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// See COMMON_FLAG in sanitizer_flags.inc for more details.
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//===----------------------------------------------------------------------===//
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// Cross-tool options
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//===----------------------------------------------------------------------===//
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ESAN_FLAG(int, cache_line_size, 64,
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"The number of bytes in a cache line. For the working-set tool, this "
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"cannot be changed without also changing the compiler "
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"instrumentation.")
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//===----------------------------------------------------------------------===//
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// Working set tool options
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//===----------------------------------------------------------------------===//
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ESAN_FLAG(bool, record_snapshots, true,
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"Working set tool: whether to sample snapshots during a run.")
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// Typical profiling uses a 10ms timer. Our snapshots take some work
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// to scan memory so we reduce to 20ms.
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// To disable samples, turn off record_snapshots.
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ESAN_FLAG(int, sample_freq, 20,
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"Working set tool: sampling frequency in milliseconds.")
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// This controls the difference in frequency between each successive series
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// of snapshots. There are 8 in total, with number 0 using sample_freq.
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// Number N samples number N-1 every (1 << snapshot_step) instance of N-1.
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ESAN_FLAG(int, snapshot_step, 2, "Working set tool: the log of the sampling "
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"performed for the next-higher-frequency snapshot series.")
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//===----------------------------------------------------------------------===//
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// Cache Fragmentation tool options
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//===----------------------------------------------------------------------===//
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// The difference information of a struct is reported if the struct's difference
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// score is greater than the report_threshold.
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ESAN_FLAG(int, report_threshold, 1<<10, "Cache-frag tool: the struct difference"
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" score threshold for reporting.")
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