diff options
Diffstat (limited to 'contrib/llvm-project/compiler-rt/lib/xray/xray_powerpc64.inc')
| -rw-r--r-- | contrib/llvm-project/compiler-rt/lib/xray/xray_powerpc64.inc | 51 | 
1 files changed, 51 insertions, 0 deletions
| diff --git a/contrib/llvm-project/compiler-rt/lib/xray/xray_powerpc64.inc b/contrib/llvm-project/compiler-rt/lib/xray/xray_powerpc64.inc new file mode 100644 index 000000000000..7e872b5b42e6 --- /dev/null +++ b/contrib/llvm-project/compiler-rt/lib/xray/xray_powerpc64.inc @@ -0,0 +1,51 @@ +//===-- xray_powerpc64.inc --------------------------------------*- C++ -*-===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// +// +// This file is a part of XRay, a dynamic runtime instrumentation system. +// +//===----------------------------------------------------------------------===// + +#include <cstdint> +#include <mutex> +#ifdef __linux__ +#include <sys/platform/ppc.h> +#elif defined(__FreeBSD__) +#include <sys/types.h> +#include <sys/sysctl.h> + +#define __ppc_get_timebase __builtin_ppc_get_timebase + +uint64_t __ppc_get_timebase_freq (void) +{ +  uint64_t tb_freq = 0; +  size_t length = sizeof(tb_freq); +  sysctlbyname("kern.timecounter.tc.timebase.frequency", &tb_freq, &length, nullptr, 0); +  return tb_freq; +} +#endif + +#include "xray_defs.h" + +namespace __xray { + +ALWAYS_INLINE uint64_t readTSC(uint8_t &CPU) XRAY_NEVER_INSTRUMENT { +  CPU = 0; +  return __ppc_get_timebase(); +} + +inline uint64_t getTSCFrequency() XRAY_NEVER_INSTRUMENT { +  static std::mutex M; +  std::lock_guard<std::mutex> Guard(M); +  return __ppc_get_timebase_freq(); +} + +inline bool probeRequiredCPUFeatures() XRAY_NEVER_INSTRUMENT { +  return true; +} + +} // namespace __xray | 
