forked from OSchip/llvm-project
52 lines
1.4 KiB
C++
52 lines
1.4 KiB
C++
//===-- xray_powerpc64.inc --------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file is a part of XRay, a dynamic runtime instrumentation system.
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//
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//===----------------------------------------------------------------------===//
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#include <cstdint>
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#include <mutex>
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#ifdef __linux__
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#include <sys/platform/ppc.h>
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#elif defined(__FreeBSD__)
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#include <sys/types.h>
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#include <sys/sysctl.h>
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#define __ppc_get_timebase __builtin_ppc_get_timebase
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uint64_t __ppc_get_timebase_freq (void)
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{
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uint64_t tb_freq = 0;
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size_t length = sizeof(tb_freq);
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sysctlbyname("kern.timecounter.tc.timebase.frequency", &tb_freq, &length, nullptr, 0);
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return tb_freq;
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}
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#endif
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#include "xray_defs.h"
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namespace __xray {
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ALWAYS_INLINE uint64_t readTSC(uint8_t &CPU) XRAY_NEVER_INSTRUMENT {
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CPU = 0;
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return __ppc_get_timebase();
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}
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inline uint64_t getTSCFrequency() XRAY_NEVER_INSTRUMENT {
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static std::mutex M;
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std::lock_guard<std::mutex> Guard(M);
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return __ppc_get_timebase_freq();
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}
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inline bool probeRequiredCPUFeatures() XRAY_NEVER_INSTRUMENT {
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return true;
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}
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} // namespace __xray
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