Fix run-time ARMv6 detection.

src/base/cpu.cc

 // Copyright 2013 the V8 project 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 "src/base/cpu.h"
 
 #if V8_LIBC_MSVCRT
 #include <intrin.h>  // __cpuid()
 #endif
 #if V8_OS_LINUX
@@ skipping 438 matching lines @@
     if (end == architecture) {
       architecture_ = 0;
     }
     delete[] architecture;
 
     // Unfortunately, it seems that certain ARMv6-based CPUs
     // report an incorrect architecture number of 7!
     //
     // See http://code.google.com/p/android/issues/detail?id=10812
     //
-    // We try to correct this by looking at the 'elf_format'
+    // We try to correct this by looking at the 'elf_platform'
     // field reported by the 'Processor' field, which is of the
     // form of "(v7l)" for an ARMv7-based CPU, and "(v6l)" for
     // an ARMv6-one. For example, the Raspberry Pi is one popular
     // ARMv6 device that reports architecture 7.
     if (architecture_ == 7) {
       char* processor = cpu_info.ExtractField("Processor");
       if (HasListItem(processor, "(v6l)")) {
         architecture_ = 6;
       }
       delete[] processor;
     }
+
+    // elf_platform moved to the model name field in Linux v3.8.
+    if (architecture_ == 7) {
+      char* processor = cpu_info.ExtractField("model name");
+      if (HasListItem(processor, "(v6l)")) {
+        architecture_ = 6;
+      }
+      delete[] processor;
+    }
   }
 
   // Try to extract the list of CPU features from ELF hwcaps.
   uint32_t hwcaps = ReadELFHWCaps();
   if (hwcaps != 0) {
     has_idiva_ = (hwcaps & HWCAP_IDIVA) != 0;
     has_neon_ = (hwcaps & HWCAP_NEON) != 0;
     has_vfp_ = (hwcaps & HWCAP_VFP) != 0;
     has_vfp3_ = (hwcaps & (HWCAP_VFPv3 | HWCAP_VFPv3D16 | HWCAP_VFPv4)) != 0;
     has_vfp3_d32_ = (has_vfp3_ && ((hwcaps & HWCAP_VFPv3D16) == 0 ||
@@ skipping 161 matching lines @@
       part_ = PPC_PA6T;
     }
   }
 
 #endif  // V8_OS_LINUX
 #endif  // !USE_SIMULATOR
 #endif  // V8_HOST_ARCH_PPC
 }
 
 } }  // namespace v8::base