The Tor Browser: tools/trace-malloc/lib/nsWinTraceMalloc.cpp@b8a032363ba2 (annotated)

tools/trace-malloc/lib/nsWinTraceMalloc.cpp@b8a032363ba2 (annotated)

tools/trace-malloc/lib/nsWinTraceMalloc.cpp

Thu, 22 Jan 2015 13:21:57 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Thu, 22 Jan 2015 13:21:57 +0100
branch: TOR_BUG_9701
changeset 15: b8a032363ba2
permissions: -rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

 /* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
  *
  * 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/. */
 #include <stdio.h>
 #include <stdlib.h>
 #include "prinrval.h"
 #include "prlock.h"
 #include "nscore.h"
 #include "nsDebugHelpWin32.h"
 #include "nsTraceMallocCallbacks.h"
 /***************************************************************************/
 // shows how to use the dhw stuff to hook imported functions
 #if _MSC_VER < 1300
 #define NS_DEBUG_CRT "MSVCRTD.dll"
 #elif _MSC_VER == 1300
 #define NS_DEBUG_CRT "msvcr70d.dll"
 #elif _MSC_VER == 1310
 #define NS_DEBUG_CRT "msvcr71d.dll"
 #elif _MSC_VER == 1400
 #define NS_DEBUG_CRT "msvcr80d.dll"
 #elif _MSC_VER == 1500
 #define NS_DEBUG_CRT "msvcr90d.dll"
 #elif _MSC_VER == 1600
 #define NS_DEBUG_CRT "msvcr100d.dll"
 #elif _MSC_VER == 1700
 #define NS_DEBUG_CRT "msvcr110d.dll"
 #elif _MSC_VER == 1800
 #define NS_DEBUG_CRT "msvcr120d.dll"
 #else
 #error "Don't know filename of MSVC debug library."
 #endif
 decltype(malloc) dhw_malloc;
 DHWImportHooker &getMallocHooker()
 {
   static DHWImportHooker gMallocHooker(NS_DEBUG_CRT, "malloc", (PROC) dhw_malloc);
   return gMallocHooker;
 }
 void * __cdecl dhw_malloc( size_t size )
 {
     tm_thread *t = tm_get_thread();
     ++t->suppress_tracing;
     uint32_t start = PR_IntervalNow();
     void* result = DHW_ORIGINAL(malloc, getMallocHooker())(size);
     uint32_t end = PR_IntervalNow();
     --t->suppress_tracing;
     MallocCallback(result, size, start, end, t);
     return result;
 }
 decltype(calloc) dhw_calloc;
 DHWImportHooker &getCallocHooker()
 {
   static DHWImportHooker gCallocHooker(NS_DEBUG_CRT, "calloc", (PROC) dhw_calloc);
   return gCallocHooker;
 }
 void * __cdecl dhw_calloc( size_t count, size_t size )
 {
     tm_thread *t = tm_get_thread();
     ++t->suppress_tracing;
     uint32_t start = PR_IntervalNow();
     void* result = DHW_ORIGINAL(calloc, getCallocHooker())(count,size);
     uint32_t end = PR_IntervalNow();
     --t->suppress_tracing;
     CallocCallback(result, count, size, start, end, t);
     return result;
 }
 decltype(free) dhw_free;
 DHWImportHooker &getFreeHooker()
 {
   static DHWImportHooker gFreeHooker(NS_DEBUG_CRT, "free", (PROC) dhw_free);
   return gFreeHooker;
 }
 void __cdecl dhw_free( void* p )
 {
     tm_thread *t = tm_get_thread();
     ++t->suppress_tracing;
     uint32_t start = PR_IntervalNow();
     DHW_ORIGINAL(free, getFreeHooker())(p);
     uint32_t end = PR_IntervalNow();
     --t->suppress_tracing;
     /* FIXME bug 392008: We could race with reallocation of p. */
     FreeCallback(p, start, end, t);
 }
 decltype(realloc) dhw_realloc;
 DHWImportHooker &getReallocHooker()
 {
   static DHWImportHooker gReallocHooker(NS_DEBUG_CRT, "realloc", (PROC) dhw_realloc);
   return gReallocHooker;
 }
 void * __cdecl dhw_realloc(void * pin, size_t size)
 {
     tm_thread *t = tm_get_thread();
     ++t->suppress_tracing;
     uint32_t start = PR_IntervalNow();
     void* pout = DHW_ORIGINAL(realloc, getReallocHooker())(pin, size);
     uint32_t end = PR_IntervalNow();
     --t->suppress_tracing;
     /* FIXME bug 392008: We could race with reallocation of pin. */
     ReallocCallback(pin, pout, size, start, end, t);
     return pout;
 }
 // Note the mangled name!
 void * __cdecl dhw_new(size_t size);
 DHWImportHooker &getNewHooker()
 {
   static DHWImportHooker gNewHooker(NS_DEBUG_CRT, "??2@YAPAXI@Z", (PROC) dhw_new);
   return gNewHooker;
 }
 void * __cdecl dhw_new(size_t size)
 {
     tm_thread *t = tm_get_thread();
     ++t->suppress_tracing;
     uint32_t start = PR_IntervalNow();
     void* result = DHW_ORIGINAL(dhw_new, getNewHooker())(size);
     uint32_t end = PR_IntervalNow();
     --t->suppress_tracing;
     MallocCallback(result, size, start, end, t);//do we need a different one for new?
     return result;
 }
 // Note the mangled name!
 void __cdecl dhw_delete(void* p);
 DHWImportHooker &getDeleteHooker()
 {
   static DHWImportHooker gDeleteHooker(NS_DEBUG_CRT, "??3@YAXPAX@Z", (PROC) dhw_delete);
   return gDeleteHooker;
 }
 void __cdecl dhw_delete(void* p)
 {
     tm_thread *t = tm_get_thread();
     ++t->suppress_tracing;
     uint32_t start = PR_IntervalNow();
     DHW_ORIGINAL(dhw_delete, getDeleteHooker())(p);
     uint32_t end = PR_IntervalNow();
     --t->suppress_tracing;
     FreeCallback(p, start, end, t);
 }
 // Note the mangled name!
 void * __cdecl dhw_vec_new(size_t size);
 DHWImportHooker &getVecNewHooker()
 {
   static DHWImportHooker gVecNewHooker(NS_DEBUG_CRT, "??_U@YAPAXI@Z", (PROC) dhw_vec_new);
   return gVecNewHooker;
 }
 void * __cdecl dhw_vec_new(size_t size)
 {
     tm_thread *t = tm_get_thread();
     ++t->suppress_tracing; // need to suppress since new[] calls new
     uint32_t start = PR_IntervalNow();
     void* result = DHW_ORIGINAL(dhw_vec_new, getVecNewHooker())(size);
     uint32_t end = PR_IntervalNow();
     --t->suppress_tracing;
     MallocCallback(result, size, start, end, t);//do we need a different one for new[]?
     return result;
 }
 // Note the mangled name!
 void __cdecl dhw_vec_delete(void* p);
 DHWImportHooker &getVecDeleteHooker()
 {
   static DHWImportHooker gVecDeleteHooker(NS_DEBUG_CRT, "??_V@YAXPAX@Z", (PROC) dhw_vec_delete);
   return gVecDeleteHooker;
 }
 void __cdecl dhw_vec_delete(void* p)
 {
     tm_thread *t = tm_get_thread();
     ++t->suppress_tracing;
     uint32_t start = PR_IntervalNow();
     DHW_ORIGINAL(dhw_vec_delete, getVecDeleteHooker())(p);
     uint32_t end = PR_IntervalNow();
     --t->suppress_tracing;
     FreeCallback(p, start, end, t);
 }
 /*C Callbacks*/
 PR_IMPLEMENT(void)
 StartupHooker()
 {
   //run through get all hookers
   DHWImportHooker &loadlibraryW = DHWImportHooker::getLoadLibraryWHooker();
   DHWImportHooker &loadlibraryExW = DHWImportHooker::getLoadLibraryExWHooker();
   DHWImportHooker &loadlibraryA = DHWImportHooker::getLoadLibraryAHooker();
   DHWImportHooker &loadlibraryExA = DHWImportHooker::getLoadLibraryExAHooker();
   DHWImportHooker &mallochooker = getMallocHooker();
   DHWImportHooker &reallochooker = getReallocHooker();
   DHWImportHooker &callochooker = getCallocHooker();
   DHWImportHooker &freehooker = getFreeHooker();
   DHWImportHooker &newhooker = getNewHooker();
   DHWImportHooker &deletehooker = getDeleteHooker();
   DHWImportHooker &vecnewhooker = getVecNewHooker();
   DHWImportHooker &vecdeletehooker = getVecDeleteHooker();
   printf("Startup Hooker\n");
 }
 PR_IMPLEMENT(void)
 ShutdownHooker()
 {
 }
 extern "C" {
   void* dhw_orig_malloc(size_t);
   void* dhw_orig_calloc(size_t, size_t);
   void* dhw_orig_realloc(void*, size_t);
   void dhw_orig_free(void*);
 }
 void*
 dhw_orig_malloc(size_t size)
 {
     return DHW_ORIGINAL(malloc, getMallocHooker())(size);
 }
 void*
 dhw_orig_calloc(size_t count, size_t size)
 {
     return DHW_ORIGINAL(calloc, getCallocHooker())(count,size);
 }
 void*
 dhw_orig_realloc(void* pin, size_t size)
 {
     return DHW_ORIGINAL(realloc, getReallocHooker())(pin, size);
 }
 void
 dhw_orig_free(void* p)
 {
     DHW_ORIGINAL(free, getFreeHooker())(p);
 }

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tools/trace-malloc/lib/nsWinTraceMalloc.cpp@b8a032363ba2 (annotated)

tools/trace-malloc/lib/nsWinTraceMalloc.cpp