Milan Radosavljevic
719556fbba
## Motivation When profiling multi-process applications where a parent process sends SIGKILL to child processes, the termination can occur before the profiler has a chance to flush collected data. This PR introduces a configurable delay before SIGKILL signals are forwarded, allowing profiling data to be captured before process termination. This is workaround. ## Technical Details - Added new configuration setting `ROCPROFSYS_KILL_DELAY` (default: 0 seconds) to specify a delay before SIGKILL signals are forwarded to other processes - Implemented `kill_gotcha` component that intercepts the `kill()` system call - The gotcha only delays SIGKILL signals sent to external processes (pid > 0 and not self) - Integrated `kill_gotcha_t` into the `preinit_bundle_t` for early initialization
60 líneas
2.1 KiB
C++
60 líneas
2.1 KiB
C++
// MIT License
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//
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// Copyright (c) 2022-2025 Advanced Micro Devices, Inc. All Rights Reserved.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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#pragma once
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#include "core/defines.hpp"
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#include <timemory/components/base.hpp>
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#include <timemory/components/gotcha/backends.hpp>
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#include <csignal>
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#include <sys/types.h>
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namespace rocprofsys
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{
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namespace component
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{
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struct kill_gotcha : tim::component::base<kill_gotcha, void>
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{
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static constexpr size_t gotcha_capacity = 1;
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using gotcha_data = tim::component::gotcha_data;
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using kill_func_t = int (*)(pid_t, int);
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ROCPROFSYS_DEFAULT_OBJECT(kill_gotcha)
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static std::string label() { return "kill_gotcha"; }
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static void configure();
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static inline void start() {}
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static inline void stop() {}
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int operator()(const gotcha_data&, kill_func_t, pid_t, int) const;
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};
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} // namespace component
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using kill_gotcha_t = tim::component::gotcha<component::kill_gotcha::gotcha_capacity,
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std::tuple<>, component::kill_gotcha>;
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} // namespace rocprofsys
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