| //===-- xray_x86_64.inc -----------------------------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file is a part of XRay, a dynamic runtime instrumentation system. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include <cstdint> |
| #include <x86intrin.h> |
| |
| #include "sanitizer_common/sanitizer_internal_defs.h" |
| #include "xray_defs.h" |
| |
| namespace __xray { |
| |
| ALWAYS_INLINE uint64_t readTSC(uint8_t &CPU) XRAY_NEVER_INSTRUMENT { |
| unsigned LongCPU; |
| unsigned long Rax, Rdx; |
| __asm__ __volatile__("rdtscp\n" : "=a"(Rax), "=d"(Rdx), "=c"(LongCPU) ::); |
| CPU = LongCPU; |
| return (Rdx << 32) + Rax; |
| } |
| |
| uint64_t getTSCFrequency(); |
| |
| bool probeRequiredCPUFeatures(); |
| |
| } // namespace __xray |
