forked from OSchip/llvm-project
57 lines
2.4 KiB
C++
57 lines
2.4 KiB
C++
//===-- 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.")
|