1//===-- esan_flags.inc ------------------------------------------*- C++ -*-===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9// 10// Esan runtime flags. 11// 12//===----------------------------------------------------------------------===// 13 14#ifndef ESAN_FLAG 15# error "Define ESAN_FLAG prior to including this file!" 16#endif 17 18// ESAN_FLAG(Type, Name, DefaultValue, Description) 19// See COMMON_FLAG in sanitizer_flags.inc for more details. 20 21//===----------------------------------------------------------------------===// 22// Cross-tool options 23//===----------------------------------------------------------------------===// 24 25ESAN_FLAG(int, cache_line_size, 64, 26 "The number of bytes in a cache line. For the working-set tool, this " 27 "cannot be changed without also changing the compiler " 28 "instrumentation.") 29 30//===----------------------------------------------------------------------===// 31// Working set tool options 32//===----------------------------------------------------------------------===// 33 34ESAN_FLAG(bool, record_snapshots, true, 35 "Working set tool: whether to sample snapshots during a run.") 36 37// Typical profiling uses a 10ms timer. Our snapshots take some work 38// to scan memory so we reduce to 20ms. 39// To disable samples, turn off record_snapshots. 40ESAN_FLAG(int, sample_freq, 20, 41 "Working set tool: sampling frequency in milliseconds.") 42 43// This controls the difference in frequency between each successive series 44// of snapshots. There are 8 in total, with number 0 using sample_freq. 45// Number N samples number N-1 every (1 << snapshot_step) instance of N-1. 46ESAN_FLAG(int, snapshot_step, 2, "Working set tool: the log of the sampling " 47 "performed for the next-higher-frequency snapshot series.") 48 49//===----------------------------------------------------------------------===// 50// Cache Fragmentation tool options 51//===----------------------------------------------------------------------===// 52 53// The difference information of a struct is reported if the struct's difference 54// score is greater than the report_threshold. 55ESAN_FLAG(int, report_threshold, 1<<10, "Cache-frag tool: the struct difference" 56 " score threshold for reporting.") 57