21  * or visit www.oracle.com if you need additional information or have any
  22  * questions.
  23  *
  24  */
  25 
  26 #ifndef CPU_PPC_GLOBALS_PPC_HPP
  27 #define CPU_PPC_GLOBALS_PPC_HPP
  28 
  29 #include "utilities/globalDefinitions.hpp"
  30 #include "utilities/macros.hpp"
  31 
  32 // Sets the default values for platform dependent flags used by the runtime system.
  33 // (see globals.hpp)
  34 
  35 define_pd_global(bool, ShareVtableStubs,      true);
  36 
  37 define_pd_global(bool, ImplicitNullChecks,    true);  // Generate code for implicit null checks.
  38 define_pd_global(bool, TrapBasedNullChecks,   true);
  39 define_pd_global(bool, UncommonNullCast,      true);  // Uncommon-trap NULLs passed to check cast.
  40 


  41 #define DEFAULT_STACK_YELLOW_PAGES (2)
  42 #define DEFAULT_STACK_RED_PAGES (1)
  43 // Java_java_net_SocketOutputStream_socketWrite0() uses a 64k buffer on the
  44 // stack if compiled for unix and LP64. To pass stack overflow tests we need
  45 // 20 shadow pages.
  46 #define DEFAULT_STACK_SHADOW_PAGES (20 DEBUG_ONLY(+2))
  47 #define DEFAULT_STACK_RESERVED_PAGES (1)
  48 
  49 #define MIN_STACK_YELLOW_PAGES DEFAULT_STACK_YELLOW_PAGES
  50 #define MIN_STACK_RED_PAGES DEFAULT_STACK_RED_PAGES
  51 #define MIN_STACK_SHADOW_PAGES (3 DEBUG_ONLY(+1))
  52 #define MIN_STACK_RESERVED_PAGES (0)
  53 
  54 define_pd_global(intx, StackYellowPages,      DEFAULT_STACK_YELLOW_PAGES);
  55 define_pd_global(intx, StackRedPages,         DEFAULT_STACK_RED_PAGES);
  56 define_pd_global(intx, StackShadowPages,      DEFAULT_STACK_SHADOW_PAGES);
  57 define_pd_global(intx, StackReservedPages,    DEFAULT_STACK_RESERVED_PAGES);
  58 
  59 // Use large code-entry alignment.
  60 define_pd_global(uintx, CodeCacheSegmentSize,  128);

  21  * or visit www.oracle.com if you need additional information or have any
  22  * questions.
  23  *
  24  */
  25 
  26 #ifndef CPU_PPC_GLOBALS_PPC_HPP
  27 #define CPU_PPC_GLOBALS_PPC_HPP
  28 
  29 #include "utilities/globalDefinitions.hpp"
  30 #include "utilities/macros.hpp"
  31 
  32 // Sets the default values for platform dependent flags used by the runtime system.
  33 // (see globals.hpp)
  34 
  35 define_pd_global(bool, ShareVtableStubs,      true);
  36 
  37 define_pd_global(bool, ImplicitNullChecks,    true);  // Generate code for implicit null checks.
  38 define_pd_global(bool, TrapBasedNullChecks,   true);
  39 define_pd_global(bool, UncommonNullCast,      true);  // Uncommon-trap NULLs passed to check cast.
  40 
  41 define_pd_global(bool, UseFastClassInitChecks, false); // not implemented
  42 
  43 #define DEFAULT_STACK_YELLOW_PAGES (2)
  44 #define DEFAULT_STACK_RED_PAGES (1)
  45 // Java_java_net_SocketOutputStream_socketWrite0() uses a 64k buffer on the
  46 // stack if compiled for unix and LP64. To pass stack overflow tests we need
  47 // 20 shadow pages.
  48 #define DEFAULT_STACK_SHADOW_PAGES (20 DEBUG_ONLY(+2))
  49 #define DEFAULT_STACK_RESERVED_PAGES (1)
  50 
  51 #define MIN_STACK_YELLOW_PAGES DEFAULT_STACK_YELLOW_PAGES
  52 #define MIN_STACK_RED_PAGES DEFAULT_STACK_RED_PAGES
  53 #define MIN_STACK_SHADOW_PAGES (3 DEBUG_ONLY(+1))
  54 #define MIN_STACK_RESERVED_PAGES (0)
  55 
  56 define_pd_global(intx, StackYellowPages,      DEFAULT_STACK_YELLOW_PAGES);
  57 define_pd_global(intx, StackRedPages,         DEFAULT_STACK_RED_PAGES);
  58 define_pd_global(intx, StackShadowPages,      DEFAULT_STACK_SHADOW_PAGES);
  59 define_pd_global(intx, StackReservedPages,    DEFAULT_STACK_RESERVED_PAGES);
  60 
  61 // Use large code-entry alignment.
  62 define_pd_global(uintx, CodeCacheSegmentSize,  128);