47 lines
1.7 KiB
C
47 lines
1.7 KiB
C
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/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#if defined(__ELF__) && (defined(__x86_64__) || defined(__i386__)) && \
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!FOLLY_DISABLE_SDT
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#include <folly/tracing/StaticTracepoint-ELFx86.h>
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#define FOLLY_SDT(provider, name, ...) \
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FOLLY_SDT_PROBE_N( \
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provider, name, 0, FOLLY_SDT_NARG(0, ##__VA_ARGS__), ##__VA_ARGS__)
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// Use FOLLY_SDT_DEFINE_SEMAPHORE(provider, name) to define the semaphore
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// as global variable before using the FOLLY_SDT_WITH_SEMAPHORE macro
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#define FOLLY_SDT_WITH_SEMAPHORE(provider, name, ...) \
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FOLLY_SDT_PROBE_N( \
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provider, name, 1, FOLLY_SDT_NARG(0, ##__VA_ARGS__), ##__VA_ARGS__)
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#define FOLLY_SDT_IS_ENABLED(provider, name) \
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(FOLLY_SDT_SEMAPHORE(provider, name) > 0)
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#else
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#define FOLLY_SDT(provider, name, ...) \
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do { \
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} while (0)
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#define FOLLY_SDT_WITH_SEMAPHORE(provider, name, ...) \
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do { \
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} while (0)
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#define FOLLY_SDT_IS_ENABLED(provider, name) (false)
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#define FOLLY_SDT_DEFINE_SEMAPHORE(provider, name)
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#define FOLLY_SDT_DECLARE_SEMAPHORE(provider, name)
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#endif
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