diff options
Diffstat (limited to 'sources/shiboken2/libshiboken/debugfreehook.cpp')
| -rw-r--r-- | sources/shiboken2/libshiboken/debugfreehook.cpp | 194 |
1 files changed, 0 insertions, 194 deletions
diff --git a/sources/shiboken2/libshiboken/debugfreehook.cpp b/sources/shiboken2/libshiboken/debugfreehook.cpp deleted file mode 100644 index 3d52d88dc..000000000 --- a/sources/shiboken2/libshiboken/debugfreehook.cpp +++ /dev/null @@ -1,194 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of Qt for Python. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "debugfreehook.h" -#include "bindingmanager.h" -#include "gilstate.h" - -#if defined(_WIN32) && defined(_DEBUG) -#include <crtdbg.h> -#include <windows.h> -#endif - -#ifdef __GLIBC__ -#include <malloc.h> -#endif - -#ifdef __APPLE__ -#include <malloc/malloc.h> -#include <mach/mach.h> -#include <mach/mach_vm.h> -#endif - -#ifdef SHIBOKEN_INSTALL_FREE_DEBUG_HOOK -extern "C" { - -static int testPointerBeingFreed(void *ptr) -{ - // It is an error for a deleted pointer address to still be registered - // in the BindingManager - if (Shiboken::BindingManager::instance().hasWrapper(ptr)) { - Shiboken::GilState state; - - SbkObject *wrapper = Shiboken::BindingManager::instance().retrieveWrapper(ptr); - - fprintf(stderr, "SbkObject still in binding map when deleted: "); - PyObject_Print(reinterpret_cast<PyObject *>(wrapper), stderr, 0); - fprintf(stderr, "\n"); - -#ifdef _WIN32 - DebugBreak(); -#else - assert(0); -#endif - return FALSE; - } - - return TRUE; -} - -#if defined(_WIN32) && defined(_DEBUG) -static _CRT_ALLOC_HOOK lastCrtAllocHook; -static int DebugAllocHook(int nAllocType, void *pvData, - size_t nSize, int nBlockUse, long lRequest, - const unsigned char * szFileName, int nLine) -{ - // It is an error for a deleted pointer address to still be registered - // in the BindingManager - if ( nAllocType == _HOOK_FREE) { - if ( !testPointerBeingFreed(pvData) ) { - return 0; - } - } - - if ( lastCrtAllocHook != NULL ) { - return lastCrtAllocHook(nAllocType, pvData, nSize, nBlockUse, lRequest, - szFileName, nLine); - } - - return 1; -} -#endif // _WIN32 && _DEBUG - -#ifdef __GLIBC__ -static void (*lastFreeHook)(void *ptr, const void *caller); -static void DebugFreeHook(void *ptr, const void *caller) -{ - testPointerBeingFreed(ptr); - - if ( lastFreeHook != NULL ) - lastFreeHook(ptr, caller); -} -#endif // __GLIBC__ - -#ifdef __APPLE__ -static malloc_zone_t lastMallocZone; -static void DebugFreeHook(malloc_zone_t *zone, void *ptr) -{ - testPointerBeingFreed(ptr); - - if ( lastMallocZone.free != NULL ) - lastMallocZone.free(zone, ptr); -} -static void DebugFreeDefiniteSizeHook(malloc_zone_t *zone, void *ptr, size_t size) -{ - testPointerBeingFreed(ptr); - - if ( lastMallocZone.free_definite_size != NULL ) - lastMallocZone.free_definite_size(zone, ptr, size); -} -#endif __APPLE__ - -void debugInstallFreeHook(void) -{ -#if defined(_WIN32) && defined(_DEBUG) - lastCrtAllocHook = _CrtSetAllocHook(DebugAllocHook); -#endif - -#ifdef __GLIBC__ - // __free_hook is not thread safe so it marked as deprecated. Use here - // is hopefully safe and should catch errors in a single threaded program - // and only miss some in a multithreaded program - lastFreeHook = __free_hook; - __free_hook = DebugFreeHook; -#endif - -#ifdef __APPLE__ - malloc_zone_t *zone = malloc_default_zone(); - assert(zone != NULL); - //remove the write protection from the zone struct - if (zone->version >= 8) { - vm_protect(mach_task_self(), (uintptr_t)zone, sizeof(*zone), 0, VM_PROT_READ | VM_PROT_WRITE); - } - lastMallocZone = *zone; - zone->free = DebugFreeHook; - zone->free_definite_size = DebugFreeDefiniteSizeHook; - if (zone->version >= 8) { - vm_protect(mach_task_self(), (uintptr_t)zone, sizeof(*zone), 0, VM_PROT_READ); - } -#endif -} - -void debugRemoveFreeHook(void) -{ -#if defined(_WIN32) && defined(_DEBUG) - _CrtSetAllocHook(lastCrtAllocHook); -#endif - -#ifdef __GLIBC__ - __free_hook = lastFreeHook; -#endif - -#ifdef __APPLE__ - malloc_zone_t *zone = malloc_default_zone(); - assert(zone != NULL); - //remove the write protection from the zone struct - if (zone->version >= 8) { - vm_protect(mach_task_self(), (uintptr_t)zone, sizeof(*zone), 0, VM_PROT_READ | VM_PROT_WRITE); - } - zone->free = lastMallocZone.free; - zone->free_definite_size = lastMallocZone.free_definite_size; - if (zone->version >= 8) { - vm_protect(mach_task_self(), (uintptr_t)zone, sizeof(*zone), 0, VM_PROT_READ); - } -#endif -} - -} // extern "C" -#endif // SHIBOKEN_INSTALL_DEBUG_FREE_HOOK |