Include CPU information in UMA system profile.

base/cpu.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.
 
 #include "base/cpu.h"
 
 #include <string.h>
 
 #include <algorithm>
 
 #include "build/build_config.h"
 
 #if defined(ARCH_CPU_X86_FAMILY)
 #if defined(_MSC_VER)
 #include <intrin.h>
 #endif
 #endif
 
 namespace base {
 
 CPU::CPU()
-  : type_(0),
+  : signature_(0),
+    type_(0),
     family_(0),
     model_(0),
     stepping_(0),
     ext_model_(0),
     ext_family_(0),
     has_mmx_(false),
     has_sse_(false),
     has_sse2_(false),
     has_sse3_(false),
     has_ssse3_(false),
@@ skipping 65 matching lines @@
   // before using memcpy to copy these three array elements to cpu_string.
   __cpuid(cpu_info, 0);
   int num_ids = cpu_info[0];
   std::swap(cpu_info[2], cpu_info[3]);
   memcpy(cpu_string, &cpu_info[1], 3 * sizeof(cpu_info[1]));
   cpu_vendor_.assign(cpu_string, 3 * sizeof(cpu_info[1]));
 
   // Interpret CPU feature information.
   if (num_ids > 0) {
     __cpuid(cpu_info, 1);
+    signature_ = cpu_info[0];
     stepping_ = cpu_info[0] & 0xf;
     model_ = ((cpu_info[0] >> 4) & 0xf) + ((cpu_info[0] >> 12) & 0xf0);
     family_ = (cpu_info[0] >> 8) & 0xf;
     type_ = (cpu_info[0] >> 12) & 0x3;
     ext_model_ = (cpu_info[0] >> 16) & 0xf;
     ext_family_ = (cpu_info[0] >> 20) & 0xff;
     has_mmx_ = (cpu_info[3] & 0x00800000) != 0;
     has_sse_ = (cpu_info[3] & 0x02000000) != 0;
     has_sse2_ = (cpu_info[3] & 0x04000000) != 0;
     has_sse3_ = (cpu_info[2] & 0x00000001) != 0;
@@ skipping 33 matching lines @@
   if (has_sse42()) return SSE42;
   if (has_sse41()) return SSE41;
   if (has_ssse3()) return SSSE3;
   if (has_sse3()) return SSE3;
   if (has_sse2()) return SSE2;
   if (has_sse()) return SSE;
   return PENTIUM;
 }
 
 }  // namespace base