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src/hotspot/cpu/zero/globals_zero.hpp

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  15  *
  16  * You should have received a copy of the GNU General Public License version
  17  * 2 along with this work; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21  * or visit www.oracle.com if you need additional information or have any
  22  * questions.
  23  *
  24  */
  25 
  26 #ifndef CPU_ZERO_GLOBALS_ZERO_HPP
  27 #define CPU_ZERO_GLOBALS_ZERO_HPP
  28 
  29 #include "utilities/globalDefinitions.hpp"
  30 #include "utilities/macros.hpp"
  31 
  32 // Set the default values for platform dependent flags used by the
  33 // runtime system.  See globals.hpp for details of what they do.
  34 


  35 define_pd_global(bool,  ImplicitNullChecks,   true);
  36 define_pd_global(bool,  TrapBasedNullChecks,  false);
  37 define_pd_global(bool,  UncommonNullCast,     true);
  38 
  39 define_pd_global(uintx, CodeCacheSegmentSize, 64 TIERED_ONLY(+64)); // Tiered compilation has large code-entry alignment.
  40 define_pd_global(intx,  CodeEntryAlignment,   32);
  41 define_pd_global(intx,  OptoLoopAlignment,    16);
  42 define_pd_global(intx,  InlineFrequencyCount, 100);
  43 define_pd_global(intx,  InlineSmallCode,      1000);
  44 
  45 // not used, but must satisfy following constraints:
  46 // 1.) <VALUE> must be in the allowed range for intx *and*
  47 // 2.) <VALUE> % BytesPerLong == 0 so as to not
  48 //     violate the constraint verifier on JVM start-up.
  49 define_pd_global(intx,  InitArrayShortSize,   0);
  50 
  51 #define DEFAULT_STACK_YELLOW_PAGES (2)
  52 #define DEFAULT_STACK_RED_PAGES (1)
  53 #define DEFAULT_STACK_SHADOW_PAGES (5 LP64_ONLY(+1) DEBUG_ONLY(+3))
  54 #define DEFAULT_STACK_RESERVED_PAGES (0)


  59 #define MIN_STACK_RESERVED_PAGES (0)
  60 
  61 define_pd_global(intx,  StackYellowPages,     DEFAULT_STACK_YELLOW_PAGES);
  62 define_pd_global(intx,  StackRedPages,        DEFAULT_STACK_RED_PAGES);
  63 define_pd_global(intx,  StackShadowPages,     DEFAULT_STACK_SHADOW_PAGES);
  64 define_pd_global(intx,  StackReservedPages,   DEFAULT_STACK_RESERVED_PAGES);
  65 
  66 define_pd_global(bool,  RewriteBytecodes,     true);
  67 define_pd_global(bool,  RewriteFrequentPairs, true);
  68 
  69 // GC Ergo Flags
  70 define_pd_global(size_t, CMSYoungGenPerWorker, 16*M);  // default max size of CMS young gen, per GC worker thread
  71 
  72 define_pd_global(uintx, TypeProfileLevel, 0);
  73 
  74 define_pd_global(bool, PreserveFramePointer, false);
  75 
  76 // No performance work done here yet.
  77 define_pd_global(bool, CompactStrings, false);
  78 
  79 define_pd_global(bool, ThreadLocalHandshakes, true);
  80 
  81 #define ARCH_FLAGS(develop, \
  82                    product, \
  83                    diagnostic, \
  84                    experimental, \
  85                    notproduct, \
  86                    range, \
  87                    constraint, \
  88                    writeable)  \
  89                                                                             \
  90   product(bool, UseFastEmptyMethods, true,                                  \
  91           "Use fast method entry code for empty methods")                   \
  92                                                                             \
  93   product(bool, UseFastAccessorMethods, true,                               \
  94           "Use fast method entry code for accessor methods")                \
  95                                                                             \
  96 
  97 #endif // CPU_ZERO_GLOBALS_ZERO_HPP


  15  *
  16  * You should have received a copy of the GNU General Public License version
  17  * 2 along with this work; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21  * or visit www.oracle.com if you need additional information or have any
  22  * questions.
  23  *
  24  */
  25 
  26 #ifndef CPU_ZERO_GLOBALS_ZERO_HPP
  27 #define CPU_ZERO_GLOBALS_ZERO_HPP
  28 
  29 #include "utilities/globalDefinitions.hpp"
  30 #include "utilities/macros.hpp"
  31 
  32 // Set the default values for platform dependent flags used by the
  33 // runtime system.  See globals.hpp for details of what they do.
  34 
  35 define_pd_global(bool,  ShareVtableStubs,     true);
  36 
  37 define_pd_global(bool,  ImplicitNullChecks,   true);
  38 define_pd_global(bool,  TrapBasedNullChecks,  false);
  39 define_pd_global(bool,  UncommonNullCast,     true);
  40 
  41 define_pd_global(uintx, CodeCacheSegmentSize, 64 TIERED_ONLY(+64)); // Tiered compilation has large code-entry alignment.
  42 define_pd_global(intx,  CodeEntryAlignment,   32);
  43 define_pd_global(intx,  OptoLoopAlignment,    16);
  44 define_pd_global(intx,  InlineFrequencyCount, 100);
  45 define_pd_global(intx,  InlineSmallCode,      1000);
  46 
  47 // not used, but must satisfy following constraints:
  48 // 1.) <VALUE> must be in the allowed range for intx *and*
  49 // 2.) <VALUE> % BytesPerLong == 0 so as to not
  50 //     violate the constraint verifier on JVM start-up.
  51 define_pd_global(intx,  InitArrayShortSize,   0);
  52 
  53 #define DEFAULT_STACK_YELLOW_PAGES (2)
  54 #define DEFAULT_STACK_RED_PAGES (1)
  55 #define DEFAULT_STACK_SHADOW_PAGES (5 LP64_ONLY(+1) DEBUG_ONLY(+3))
  56 #define DEFAULT_STACK_RESERVED_PAGES (0)


  61 #define MIN_STACK_RESERVED_PAGES (0)
  62 
  63 define_pd_global(intx,  StackYellowPages,     DEFAULT_STACK_YELLOW_PAGES);
  64 define_pd_global(intx,  StackRedPages,        DEFAULT_STACK_RED_PAGES);
  65 define_pd_global(intx,  StackShadowPages,     DEFAULT_STACK_SHADOW_PAGES);
  66 define_pd_global(intx,  StackReservedPages,   DEFAULT_STACK_RESERVED_PAGES);
  67 
  68 define_pd_global(bool,  RewriteBytecodes,     true);
  69 define_pd_global(bool,  RewriteFrequentPairs, true);
  70 
  71 // GC Ergo Flags
  72 define_pd_global(size_t, CMSYoungGenPerWorker, 16*M);  // default max size of CMS young gen, per GC worker thread
  73 
  74 define_pd_global(uintx, TypeProfileLevel, 0);
  75 
  76 define_pd_global(bool, PreserveFramePointer, false);
  77 
  78 // No performance work done here yet.
  79 define_pd_global(bool, CompactStrings, false);
  80 
  81 define_pd_global(bool, ThreadLocalHandshakes, false);
  82 
  83 #define ARCH_FLAGS(develop, \
  84                    product, \
  85                    diagnostic, \
  86                    experimental, \
  87                    notproduct, \
  88                    range, \
  89                    constraint, \
  90                    writeable)  \
  91                                                                             \
  92   product(bool, UseFastEmptyMethods, true,                                  \
  93           "Use fast method entry code for empty methods")                   \
  94                                                                             \
  95   product(bool, UseFastAccessorMethods, true,                               \
  96           "Use fast method entry code for accessor methods")                \
  97                                                                             \
  98 
  99 #endif // CPU_ZERO_GLOBALS_ZERO_HPP
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