15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2005, Google Inc. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// All rights reserved. 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Redistribution and use in source and binary forms, with or without 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// modification, are permitted provided that the following conditions are 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// met: 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// * Redistributions of source code must retain the above copyright 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// notice, this list of conditions and the following disclaimer. 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// * Redistributions in binary form must reproduce the above 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// copyright notice, this list of conditions and the following disclaimer 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// in the documentation and/or other materials provided with the 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// distribution. 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// * Neither the name of Google Inc. nor the names of its 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// contributors may be used to endorse or promote products derived from 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// this software without specific prior written permission. 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// --- 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Author: Sanjay Ghemawat 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// This has the implementation details of malloc_hook that are needed 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// to use malloc-hook inside the tcmalloc system. It does not hold 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// any of the client-facing calls that are used to add new hooks. 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifndef _MALLOC_HOOK_INL_H_ 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define _MALLOC_HOOK_INL_H_ 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <stddef.h> 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <sys/types.h> 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/atomicops.h" 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/basictypes.h" 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <gperftools/malloc_hook.h> 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace base { namespace internal { 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// The following (implementation) code is DEPRECATED. 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// A simple atomic pointer class that can be initialized by the linker 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// when you define a namespace-scope variable as: 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// AtomicPtr<Foo*> my_global = { &initial_value }; 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// This isn't suitable for a general atomic<> class because of the 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// public access to data_. 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)template<typename PtrT> 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class AtomicPtr { 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) COMPILE_ASSERT(sizeof(PtrT) <= sizeof(AtomicWord), 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PtrT_should_fit_in_AtomicWord); 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PtrT Get() const { 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Depending on the system, Acquire_Load(AtomicWord*) may have 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // been defined to return an AtomicWord, Atomic32, or Atomic64. 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // We hide that implementation detail here with an explicit cast. 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // This prevents MSVC 2005, at least, from complaining (it has to 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // do with __wp64; AtomicWord is __wp64, but Atomic32/64 aren't). 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return reinterpret_cast<PtrT>(static_cast<AtomicWord>( 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::subtle::Acquire_Load(&data_))); 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Sets the contained value to new_val and returns the old value, 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // atomically, with acquire and release semantics. 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // This is a full-barrier instruction. 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PtrT Exchange(PtrT new_val); 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Atomically executes: 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // result = data_ 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // if (data_ == old_val) 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // data_ = new_val; 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // return result; 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // This is a full-barrier instruction. 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PtrT CompareAndSwap(PtrT old_val, PtrT new_val); 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Not private so that the class is an aggregate and can be 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // initialized by the linker. Don't access this directly. 875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AtomicWord data_; 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// These are initialized in malloc_hook.cc 915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)extern AtomicPtr<MallocHook::NewHook> new_hook_; 925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)extern AtomicPtr<MallocHook::DeleteHook> delete_hook_; 935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)extern AtomicPtr<MallocHook::PreMmapHook> premmap_hook_; 945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)extern AtomicPtr<MallocHook::MmapHook> mmap_hook_; 955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)extern AtomicPtr<MallocHook::MunmapHook> munmap_hook_; 965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)extern AtomicPtr<MallocHook::MremapHook> mremap_hook_; 975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)extern AtomicPtr<MallocHook::PreSbrkHook> presbrk_hook_; 985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)extern AtomicPtr<MallocHook::SbrkHook> sbrk_hook_; 995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// End DEPRECATED code. 1005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Maximum of 7 hooks means that HookList is 8 words. 1025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static const int kHookListMaxValues = 7; 1035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// HookList: a class that provides synchronized insertions and removals and 1055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// lockless traversal. Most of the implementation is in malloc_hook.cc. 1065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)template <typename T> 1075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct PERFTOOLS_DLL_DECL HookList { 1085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) COMPILE_ASSERT(sizeof(T) <= sizeof(AtomicWord), T_should_fit_in_AtomicWord); 1095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Adds value to the list. Note that duplicates are allowed. Thread-safe and 1115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // blocking (acquires hooklist_spinlock). Returns true on success; false 1125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // otherwise (failures include invalid value and no space left). 1135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool Add(T value); 1145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Removes the first entry matching value from the list. Thread-safe and 1165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // blocking (acquires hooklist_spinlock). Returns true on success; false 1175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // otherwise (failures include invalid value and no value found). 1185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool Remove(T value); 1195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Store up to n values of the list in output_array, and return the number of 1215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // elements stored. Thread-safe and non-blocking. This is fast (one memory 1225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // access) if the list is empty. 1235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int Traverse(T* output_array, int n) const; 1245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Fast inline implementation for fast path of Invoke*Hook. 1265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool empty() const { 1275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return base::subtle::Acquire_Load(&priv_end) == 0; 1285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // This internal data is not private so that the class is an aggregate and can 1315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // be initialized by the linker. Don't access this directly. Use the 1325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // INIT_HOOK_LIST macro in malloc_hook.cc. 1335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // One more than the index of the last valid element in priv_data. During 1355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // 'Remove' this may be past the last valid element in priv_data, but 1365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // subsequent values will be 0. 1375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AtomicWord priv_end; 1385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AtomicWord priv_data[kHookListMaxValues]; 1395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 1405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)extern HookList<MallocHook::NewHook> new_hooks_; 1425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)extern HookList<MallocHook::DeleteHook> delete_hooks_; 1435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)extern HookList<MallocHook::PreMmapHook> premmap_hooks_; 1445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)extern HookList<MallocHook::MmapHook> mmap_hooks_; 1455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)extern HookList<MallocHook::MmapReplacement> mmap_replacement_; 1465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)extern HookList<MallocHook::MunmapHook> munmap_hooks_; 1475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)extern HookList<MallocHook::MunmapReplacement> munmap_replacement_; 1485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)extern HookList<MallocHook::MremapHook> mremap_hooks_; 1495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)extern HookList<MallocHook::PreSbrkHook> presbrk_hooks_; 1505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)extern HookList<MallocHook::SbrkHook> sbrk_hooks_; 1515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} } // namespace base::internal 1535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// The following method is DEPRECATED 1555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)inline MallocHook::NewHook MallocHook::GetNewHook() { 1565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return base::internal::new_hook_.Get(); 1575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)inline void MallocHook::InvokeNewHook(const void* p, size_t s) { 1605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!base::internal::new_hooks_.empty()) { 1615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) InvokeNewHookSlow(p, s); 1625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The following code is DEPRECATED. 1645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) MallocHook::NewHook hook = MallocHook::GetNewHook(); 1655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (hook != NULL) (*hook)(p, s); 1665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // End DEPRECATED code. 1675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// The following method is DEPRECATED 1705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)inline MallocHook::DeleteHook MallocHook::GetDeleteHook() { 1715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return base::internal::delete_hook_.Get(); 1725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)inline void MallocHook::InvokeDeleteHook(const void* p) { 1755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!base::internal::delete_hooks_.empty()) { 1765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) InvokeDeleteHookSlow(p); 1775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The following code is DEPRECATED. 1795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) MallocHook::DeleteHook hook = MallocHook::GetDeleteHook(); 1805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (hook != NULL) (*hook)(p); 1815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // End DEPRECATED code. 1825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// The following method is DEPRECATED 1855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)inline MallocHook::PreMmapHook MallocHook::GetPreMmapHook() { 1865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return base::internal::premmap_hook_.Get(); 1875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)inline void MallocHook::InvokePreMmapHook(const void* start, 1905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) size_t size, 1915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int protection, 1925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int flags, 1935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int fd, 1945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) off_t offset) { 1955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!base::internal::premmap_hooks_.empty()) { 1965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) InvokePreMmapHookSlow(start, size, protection, flags, fd, offset); 1975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The following code is DEPRECATED. 1995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) MallocHook::PreMmapHook hook = MallocHook::GetPreMmapHook(); 2005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (hook != NULL) (*hook)(start, size, 2015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) protection, flags, 2025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) fd, offset); 2035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // End DEPRECATED code. 2045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// The following method is DEPRECATED 2075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)inline MallocHook::MmapHook MallocHook::GetMmapHook() { 2085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return base::internal::mmap_hook_.Get(); 2095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)inline void MallocHook::InvokeMmapHook(const void* result, 2125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const void* start, 2135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) size_t size, 2145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int protection, 2155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int flags, 2165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int fd, 2175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) off_t offset) { 2185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!base::internal::mmap_hooks_.empty()) { 2195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) InvokeMmapHookSlow(result, start, size, protection, flags, fd, offset); 2205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The following code is DEPRECATED. 2225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) MallocHook::MmapHook hook = MallocHook::GetMmapHook(); 2235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (hook != NULL) (*hook)(result, 2245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) start, size, 2255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) protection, flags, 2265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) fd, offset); 2275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // End DEPRECATED code. 2285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)inline bool MallocHook::InvokeMmapReplacement(const void* start, 2315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) size_t size, 2325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int protection, 2335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int flags, 2345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int fd, 2355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) off_t offset, 2365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void** result) { 2375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!base::internal::mmap_replacement_.empty()) { 2385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return InvokeMmapReplacementSlow(start, size, 2395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) protection, flags, 2405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) fd, offset, 2415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) result); 2425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 2445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// The following method is DEPRECATED 2475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)inline MallocHook::MunmapHook MallocHook::GetMunmapHook() { 2485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return base::internal::munmap_hook_.Get(); 2495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)inline void MallocHook::InvokeMunmapHook(const void* p, size_t size) { 2525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!base::internal::munmap_hooks_.empty()) { 2535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) InvokeMunmapHookSlow(p, size); 2545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The following code is DEPRECATED. 2565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) MallocHook::MunmapHook hook = MallocHook::GetMunmapHook(); 2575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (hook != NULL) (*hook)(p, size); 2585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // End DEPRECATED code. 2595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)inline bool MallocHook::InvokeMunmapReplacement( 2625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const void* p, size_t size, int* result) { 2635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!base::internal::mmap_replacement_.empty()) { 2645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return InvokeMunmapReplacementSlow(p, size, result); 2655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 2675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// The following method is DEPRECATED 2705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)inline MallocHook::MremapHook MallocHook::GetMremapHook() { 2715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return base::internal::mremap_hook_.Get(); 2725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)inline void MallocHook::InvokeMremapHook(const void* result, 2755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const void* old_addr, 2765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) size_t old_size, 2775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) size_t new_size, 2785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int flags, 2795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const void* new_addr) { 2805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!base::internal::mremap_hooks_.empty()) { 2815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) InvokeMremapHookSlow(result, old_addr, old_size, new_size, flags, new_addr); 2825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The following code is DEPRECATED. 2845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) MallocHook::MremapHook hook = MallocHook::GetMremapHook(); 2855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (hook != NULL) (*hook)(result, 2865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) old_addr, old_size, 2875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) new_size, flags, new_addr); 2885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // End DEPRECATED code. 2895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// The following method is DEPRECATED 2925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)inline MallocHook::PreSbrkHook MallocHook::GetPreSbrkHook() { 2935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return base::internal::presbrk_hook_.Get(); 2945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)inline void MallocHook::InvokePreSbrkHook(ptrdiff_t increment) { 2975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!base::internal::presbrk_hooks_.empty() && increment != 0) { 2985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) InvokePreSbrkHookSlow(increment); 2995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The following code is DEPRECATED. 3015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) MallocHook::PreSbrkHook hook = MallocHook::GetPreSbrkHook(); 3025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (hook != NULL && increment != 0) (*hook)(increment); 3035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // End DEPRECATED code. 3045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// The following method is DEPRECATED 3075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)inline MallocHook::SbrkHook MallocHook::GetSbrkHook() { 3085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return base::internal::sbrk_hook_.Get(); 3095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)inline void MallocHook::InvokeSbrkHook(const void* result, 3125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ptrdiff_t increment) { 3135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!base::internal::sbrk_hooks_.empty() && increment != 0) { 3145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) InvokeSbrkHookSlow(result, increment); 3155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The following code is DEPRECATED. 3175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) MallocHook::SbrkHook hook = MallocHook::GetSbrkHook(); 3185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (hook != NULL && increment != 0) (*hook)(result, increment); 3195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // End DEPRECATED code. 3205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif /* _MALLOC_HOOK_INL_H_ */ 323