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