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e466173d5c
Summary: Instead of existing calls to ps from gnu_parallel, call a new wrapper that does ps, looks for unit test like processes, and uses pstack or gdb to print thread stack traces. Also, using `ps -wwf` instead of `ps -wf` ensures output is not cut off. For security, CircleCI runs with security restrictions on ptrace (/proc/sys/kernel/yama/ptrace_scope = 1), and this change adds a work-around to `InstallStackTraceHandler()` (only used by testing tools) to allow any process from the same user to debug it. (I've also touched >100 files to ensure all the unit tests call this function.) Pull Request resolved: https://github.com/facebook/rocksdb/pull/10828 Test Plan: local manual + temporary infinite loop in a unit test to observe in CircleCI Reviewed By: hx235 Differential Revision: D40447634 Pulled By: pdillinger fbshipit-source-id: 718a4c4a5b54fa0f9af2d01a446162b45e5e84e1
32 lines
1.1 KiB
C++
32 lines
1.1 KiB
C++
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under both the GPLv2 (found in the
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// COPYING file in the root directory) and Apache 2.0 License
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// (found in the LICENSE.Apache file in the root directory).
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//
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#pragma once
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#include "rocksdb/rocksdb_namespace.h"
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namespace ROCKSDB_NAMESPACE {
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namespace port {
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// Install a signal handler to print callstack on the following signals:
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// SIGILL SIGSEGV SIGBUS SIGABRT
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// And also (Linux ony for now) overrides security settings to allow outside
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// processes to attach to this one as a debugger. ONLY USE FOR NON-SECURITY
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// CRITICAL PROCESSES such as unit tests or benchmarking tools.
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// Currently supports only some POSIX implementations. No-op otherwise.
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void InstallStackTraceHandler();
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// Prints stack, skips skip_first_frames frames
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void PrintStack(int first_frames_to_skip = 0);
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// Prints the given callstack
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void PrintAndFreeStack(void* callstack, int num_frames);
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// Save the current callstack
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void* SaveStack(int* num_frame, int first_frames_to_skip = 0);
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} // namespace port
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} // namespace ROCKSDB_NAMESPACE
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