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| #ifndef CPU_PPC_GLOBALDEFINITIONS_PPC_HPP | |
| #define CPU_PPC_GLOBALDEFINITIONS_PPC_HPP | |
| // Size of PPC Instructions | |
| const int BytesPerInstWord = 4; | |
| const int StackAlignmentInBytes = 16; | |
| #ifdef AIX | |
| const size_t pd_segfault_address = -1; | |
| #else | |
| const size_t pd_segfault_address = 1024; | |
| #endif | |
| // Indicates whether the C calling conventions require that | |
| // 32-bit integer argument values are extended to 64 bits. | |
| const bool CCallingConventionRequiresIntsAsLongs = true; | |
| #define SUPPORTS_NATIVE_CX8 | |
| #define SUPPORT_MONITOR_COUNT | |
| // PPC64 is not specified as multi-copy-atomic | |
| // So we must not #define CPU_MULTI_COPY_ATOMIC | |
| // The expected size in bytes of a cache line. | |
| #define DEFAULT_CACHE_LINE_SIZE 128 | |
| // The default padding size for data structures to avoid false sharing. | |
| #define DEFAULT_PADDING_SIZE DEFAULT_CACHE_LINE_SIZE | |
| #define SUPPORT_RESERVED_STACK_AREA | |
| // If UseSIGTRAP is active, we only use the poll bit and no polling page. | |
| // Otherwise, we fall back to usage of the polling page in nmethods. | |
| // Define the condition to use this -XX flag. | |
| #define USE_POLL_BIT_ONLY UseSIGTRAP | |
| #endif // CPU_PPC_GLOBALDEFINITIONS_PPC_HPP |