1 //===-- TraceIntelPTConstants.h ---------------------------------*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #ifndef LLDB_SOURCE_PLUGINS_TRACE_INTEL_PT_CONSTANTS_H 10 #define LLDB_SOURCE_PLUGINS_TRACE_INTEL_PT_CONSTANTS_H 11 12 #include "lldb/lldb-types.h" 13 #include <cstddef> 14 #include <optional> 15 16 namespace lldb_private { 17 namespace trace_intel_pt { 18 19 const size_t kDefaultIptTraceSize = 4 * 1024; // 4KB 20 const size_t kDefaultProcessBufferSizeLimit = 5 * 1024 * 1024; // 500MB 21 const bool kDefaultEnableTscValue = false; 22 const std::optional<size_t> kDefaultPsbPeriod; 23 const bool kDefaultPerCpuTracing = false; 24 const bool kDefaultDisableCgroupFiltering = false; 25 26 // Physical address where the kernel is loaded in x86 architecture. Refer to 27 // https://github.com/torvalds/linux/blob/master/Documentation/x86/x86_64/mm.rst 28 // for the start address of kernel text section. 29 // The kernel entry point is 0x1000000 by default when KASLR is disabled. 30 const lldb::addr_t kDefaultKernelLoadAddress = 0xffffffff81000000; 31 const lldb::pid_t kDefaultKernelProcessID = 1; 32 33 } // namespace trace_intel_pt 34 } // namespace lldb_private 35 36 #endif // LLDB_SOURCE_PLUGINS_TRACE_INTEL_PT_CONSTANTS_H 37