src/hotspot/cpu/ppc/globalDefinitions_ppc.hpp
author mbaesken
Mon, 04 Nov 2019 09:54:00 +0100
changeset 58904 1f7981ef8779
parent 57978 be5865bda5b9
child 59014 36fde8064316
permissions -rw-r--r--
8233078: fix minimal VM build on Linux ppc64(le) Reviewed-by: mdoerr, lucy

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#ifndef CPU_PPC_GLOBALDEFINITIONS_PPC_HPP
#define CPU_PPC_GLOBALDEFINITIONS_PPC_HPP

#ifdef CC_INTERP
#error "CC_INTERP is no longer supported. Removed in change 8145117."
#endif

// Size of PPC Instructions
const int BytesPerInstWord = 4;

const int StackAlignmentInBytes = 16;

// 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

// 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, used to pad data structures.
#define DEFAULT_CACHE_LINE_SIZE 128

#if defined(COMPILER2) && (defined(AIX) || defined(LINUX))
// Include Transactional Memory lock eliding optimization
#define INCLUDE_RTM_OPT 1
#else
#define INCLUDE_RTM_OPT 0
#endif

#define SUPPORT_RESERVED_STACK_AREA

#define THREAD_LOCAL_POLL
// 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