jdelong
067e38c23d
If the profiler hook throws (and it used to not be able to), we can decref a local twice. The generic return case is safe, but the inline return case wasn't zeroing the type.
77 linhas
2.5 KiB
C++
77 linhas
2.5 KiB
C++
/*
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+----------------------------------------------------------------------+
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| HipHop for PHP |
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+----------------------------------------------------------------------+
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| Copyright (c) 2010- Facebook, Inc. (http://www.facebook.com) |
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+----------------------------------------------------------------------+
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| This source file is subject to version 3.01 of the PHP license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.php.net/license/3_01.txt |
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| If you did not receive a copy of the PHP license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@php.net so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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*/
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#ifndef incl_VM_EVENT_HOOK_H_
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#define incl_VM_EVENT_HOOK_H_
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#include "runtime/base/execution_context.h"
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#include "runtime/vm/bytecode.h"
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#include "runtime/vm/translator/targetcache.h"
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namespace HPHP {
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namespace VM {
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#define DECLARE_HOOK(name, declargs, useargs) \
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static inline void name declargs { \
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if (UNLIKELY(Transl::TargetCache::loadConditionFlags())) { \
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g_vmContext->m_eventHook->on ## name useargs; \
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} \
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} \
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void on ## name declargs;
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class EventHook {
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public:
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enum {
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NormalFunc,
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PseudoMain,
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Eval,
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};
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enum {
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ProfileEnter,
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ProfileExit,
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};
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static void Enable();
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static void Disable();
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static void CheckSurprise();
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/*
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* Can throw from user-defined signal handlers, or OOM or timeout
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* exceptions.
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*/
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DECLARE_HOOK(FunctionEnter, (const ActRec* ar, int funcType),
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(ar, funcType));
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/*
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* FunctionExit may throw.
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*
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* This means we have to be extra careful when tearing down frames
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* (which might be because an exception is propagating). The
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* unwinder itself will call the function exit hooks and swallow
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* exceptions.
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*/
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DECLARE_HOOK(FunctionExit, (const ActRec* ar), (ar));
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private:
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static void RunUserProfiler(const ActRec* ar, int mode);
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};
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#undef DECLARE_HOOK
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} // namespace VM
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} // namespace HPHP
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#endif
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