GN: aix port along with linux_s390x, linux_ppc64 and linux_ppc64le support.

base/trace_event/process_memory_dump.cc

 // Copyright 2015 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.
 
 #include "base/trace_event/process_memory_dump.h"
 
 #include <errno.h>
 
 #include <vector>
 
@@ skipping 103 matching lines @@
     failure = !QueryWorkingSetEx(GetCurrentProcess(), vec.get(), vec_size);
 
     for (size_t i = 0; i < page_count; i++)
       resident_page_count += vec[i].VirtualAttributes.Valid;
 #elif defined(OS_POSIX)
     int error_counter = 0;
     int result = 0;
     // HANDLE_EINTR tries for 100 times. So following the same pattern.
     do {
       result =
+#if defined(OS_AIX)
+          mincore(reinterpret_cast<char*>(chunk_start), chunk_size,
+                  reinterpret_cast<char*>(vec.get()));
+#else
           mincore(reinterpret_cast<void*>(chunk_start), chunk_size, vec.get());
+#endif
     } while (result == -1 && errno == EAGAIN && error_counter++ < 100);
     failure = !!result;
 
     for (size_t i = 0; i < page_count; i++)
       resident_page_count += vec[i] & 1;
 #endif
 
     if (failure)
       break;
 
@@ skipping 223 matching lines @@
 
 MemoryAllocatorDump* ProcessMemoryDump::GetBlackHoleMad() {
   DCHECK(is_black_hole_non_fatal_for_testing_);
   if (!black_hole_mad_)
     black_hole_mad_.reset(new MemoryAllocatorDump("discarded", this));
   return black_hole_mad_.get();
 }
 
 }  // namespace trace_event
 }  // namespace base