Detect cache line size on Linux for PPC hosts.

src/arm/assembler-arm.cc

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // All Rights Reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions
 // are met:
 //
 // - Redistributions of source code must retain the above copyright notice,
 // this list of conditions and the following disclaimer.
 //
@@ skipping 64 matching lines @@
   if ((answer & (1u << ARMv7)) && FLAG_enable_unaligned_accesses) {
     answer |= 1u << UNALIGNED_ACCESSES;
   }
 
   return answer;
 }
 
 
 void CpuFeatures::ProbeImpl(bool cross_compile) {
   supported_ |= CpuFeaturesImpliedByCompiler();
-  cache_line_size_ = 64;
+  dcache_line_size_ = 64;
 
   // Only use statically determined features for cross compile (snapshot).
   if (cross_compile) return;
 
 #ifndef __arm__
   // For the simulator build, use whatever the flags specify.
   if (FLAG_enable_armv8) {
     supported_ |= 1u << ARMv8;
     // ARMv8 always features VFP and NEON.
     supported_ |= 1u << ARMv7 | 1u << VFP3 | 1u << NEON | 1u << VFP32DREGS;
@@ skipping 34 matching lines @@
     // Use movw/movt for QUALCOMM ARMv7 cores.
     if (FLAG_enable_movw_movt && cpu.implementer() == base::CPU::QUALCOMM) {
       supported_ |= 1u << MOVW_MOVT_IMMEDIATE_LOADS;
     }
   }
 
   // ARM Cortex-A9 and Cortex-A5 have 32 byte cachelines.
   if (cpu.implementer() == base::CPU::ARM &&
       (cpu.part() == base::CPU::ARM_CORTEX_A5 ||
        cpu.part() == base::CPU::ARM_CORTEX_A9)) {
-    cache_line_size_ = 32;
+    dcache_line_size_ = 32;
   }
 
   if (FLAG_enable_32dregs && cpu.has_vfp3_d32()) supported_ |= 1u << VFP32DREGS;
 
   if (cpu.implementer() == base::CPU::NVIDIA &&
       cpu.variant() == base::CPU::NVIDIA_DENVER &&
       cpu.part() <= base::CPU::NVIDIA_DENVER_V10) {
     supported_ |= 1u << COHERENT_CACHE;
   }
 #endif
@@ skipping 3960 matching lines @@
     DCHECK(is_uint12(offset));
     instr_at_put(pc, SetLdrRegisterImmediateOffset(instr, offset));
   }
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM