Mercurial > hg > truffle
comparison src/share/vm/utilities/globalDefinitions.hpp @ 14521:29ccc4cbabca
Merge
author | Gilles Duboscq <duboscq@ssw.jku.at> |
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date | Wed, 12 Mar 2014 13:30:08 +0100 |
parents | d8041d695d19 |
children | 24cd779e5d94 |
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14520:f84115370178 | 14521:29ccc4cbabca |
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36 # include "utilities/globalDefinitions_visCPP.hpp" | 36 # include "utilities/globalDefinitions_visCPP.hpp" |
37 #endif | 37 #endif |
38 #ifdef TARGET_COMPILER_sparcWorks | 38 #ifdef TARGET_COMPILER_sparcWorks |
39 # include "utilities/globalDefinitions_sparcWorks.hpp" | 39 # include "utilities/globalDefinitions_sparcWorks.hpp" |
40 #endif | 40 #endif |
41 #ifdef TARGET_COMPILER_xlc | |
42 # include "utilities/globalDefinitions_xlc.hpp" | |
43 #endif | |
41 | 44 |
42 #include "utilities/macros.hpp" | 45 #include "utilities/macros.hpp" |
43 | 46 |
44 // This file holds all globally used constants & types, class (forward) | 47 // This file holds all globally used constants & types, class (forward) |
45 // declarations and a few frequently used utility functions. | 48 // declarations and a few frequently used utility functions. |
147 const int LogHeapWordsPerLong = LogBytesPerLong - LogHeapWordSize; | 150 const int LogHeapWordsPerLong = LogBytesPerLong - LogHeapWordSize; |
148 | 151 |
149 // The larger HeapWordSize for 64bit requires larger heaps | 152 // The larger HeapWordSize for 64bit requires larger heaps |
150 // for the same application running in 64bit. See bug 4967770. | 153 // for the same application running in 64bit. See bug 4967770. |
151 // The minimum alignment to a heap word size is done. Other | 154 // The minimum alignment to a heap word size is done. Other |
152 // parts of the memory system may required additional alignment | 155 // parts of the memory system may require additional alignment |
153 // and are responsible for those alignments. | 156 // and are responsible for those alignments. |
154 #ifdef _LP64 | 157 #ifdef _LP64 |
155 #define ScaleForWordSize(x) align_size_down_((x) * 13 / 10, HeapWordSize) | 158 #define ScaleForWordSize(x) align_size_down_((x) * 13 / 10, HeapWordSize) |
156 #else | 159 #else |
157 #define ScaleForWordSize(x) (x) | 160 #define ScaleForWordSize(x) (x) |
391 * the platform specific globalDefinitions (above) | 394 * the platform specific globalDefinitions (above) |
392 * can set PLATFORM_NATIVE_STACK_WALKING_SUPPORTED to 0 | 395 * can set PLATFORM_NATIVE_STACK_WALKING_SUPPORTED to 0 |
393 */ | 396 */ |
394 #ifndef PLATFORM_NATIVE_STACK_WALKING_SUPPORTED | 397 #ifndef PLATFORM_NATIVE_STACK_WALKING_SUPPORTED |
395 #define PLATFORM_NATIVE_STACK_WALKING_SUPPORTED 1 | 398 #define PLATFORM_NATIVE_STACK_WALKING_SUPPORTED 1 |
399 #endif | |
400 | |
401 // To assure the IRIW property on processors that are not multiple copy | |
402 // atomic, sync instructions must be issued between volatile reads to | |
403 // assure their ordering, instead of after volatile stores. | |
404 // (See "A Tutorial Introduction to the ARM and POWER Relaxed Memory Models" | |
405 // by Luc Maranget, Susmit Sarkar and Peter Sewell, INRIA/Cambridge) | |
406 #ifdef CPU_NOT_MULTIPLE_COPY_ATOMIC | |
407 const bool support_IRIW_for_not_multiple_copy_atomic_cpu = true; | |
408 #else | |
409 const bool support_IRIW_for_not_multiple_copy_atomic_cpu = false; | |
396 #endif | 410 #endif |
397 | 411 |
398 // The byte alignment to be used by Arena::Amalloc. See bugid 4169348. | 412 // The byte alignment to be used by Arena::Amalloc. See bugid 4169348. |
399 // Note: this value must be a power of 2 | 413 // Note: this value must be a power of 2 |
400 | 414 |