gecko-dev/xpcom/build/TlsAllocationTracker.h
Cervantes Yu ad89036000 Bug 1320134 - Part 1: Tracking TLS allocations for diagnosing out-of-TLS-slots crashes on Windows. r=froydnj
This tracks TlsAlloc() and TlsFree() calls on Windows for diagnosing crashes when a proces reaches
its limit (1088) for TLS slots. Tracking of TLS allocation is done by intercepting TlsAlloc() and
TlsFree() in kernel32.dll. After initialization, we start tracking the number of allocated TLS
slots. If the number of observed TLS allocations exceeds a high water mark, we record the stack
when TlsAlloc() is called, and the recorded stacks gets serialized in a JSON string ready for
crash annotation.

MozReview-Commit-ID: 5fHVr0eiMy5
2017-03-15 18:20:30 +08:00

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_TlsAllocationTracker_h
#define mozilla_TlsAllocationTracker_h
#include <string>
#include "mozilla/Types.h"
namespace mozilla {
void
InitTlsAllocationTracker();
const char*
GetTlsAllocationStacks();
void
ShutdownTlsAllocationTracker();
}
#endif