Use PRIx64 instead of PRIxPTR for uint64 in deep-heap-profile.

third_party/tcmalloc/chromium/src/deep-heap-profile.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // ---
 // Author: Sainbayar Sukhbaatar
 //         Dai Mikurube
 //
 
 #include "deep-heap-profile.h"
@@ skipping 342 matching lines @@
 
 bool DeepHeapProfile::TextBuffer::AppendInt64(int64 v, int d) {
   int appended;
   if (d == 0)
     appended = snprintf(buffer_ + cursor_, size_ - cursor_, "%"PRId64, v);
   else
     appended = snprintf(buffer_ + cursor_, size_ - cursor_, "%*"PRId64, d, v);
   return ForwardCursor(appended);
 }
 
 bool DeepHeapProfile::TextBuffer::AppendPtr(uint64 v, int d) {

[Jeffrey Yasskin, 2013/05/10 00:52:08]

Another possible fix would be to change this to uintptr_t, but your change is
fine.

[Dai Mikurube (NOT FULLTIME), 2013/05/10 09:45:53]

Yeah, it might be better, but we decided to use uint64 for pointers since some
existing code in third_party tcmalloc use uint64 for pointers (e.g.
base/sysinfo.cc:ProcMaps-).

   int appended;
   if (d == 0)
-    appended = snprintf(buffer_ + cursor_, size_ - cursor_, "%"PRIxPTR, v);
+    appended = snprintf(buffer_ + cursor_, size_ - cursor_, "%"PRIx64, v);

[Jeffrey Yasskin, 2013/05/10 00:52:08]

We'll eventually, probably, need to add a space between the "%" and the macro to
avoid a collision with user-defined literals. No need to do this now, and it's
possible the language will fix the problem in general.

[Dai Mikurube (NOT FULLTIME), 2013/05/10 09:45:53]

Ok.

   else
-    appended = snprintf(buffer_ + cursor_, size_ - cursor_, "%0*"PRIxPTR, d, v);
+    appended = snprintf(buffer_ + cursor_, size_ - cursor_, "%0*"PRIx64, d, v);
   return ForwardCursor(appended);
 }
 
 bool DeepHeapProfile::TextBuffer::ForwardCursor(int appended) {
   if (appended < 0 || appended >= size_ - cursor_)
     return false;
   cursor_ += appended;
   return true;
 }
 
@@ skipping 544 matching lines @@
 }
 
 DeepHeapProfile::~DeepHeapProfile() {
 }
 
 int DeepHeapProfile::FillOrderedProfile(char raw_buffer[], int buffer_size) {
   return heap_profile_->FillOrderedProfile(raw_buffer, buffer_size);
 }
 
 #endif  // USE_DEEP_HEAP_PROFILE