view src/cpu/x86/vm/globals_x86.hpp @ 4839:cd54c7e92908

8015660: "Failed: init recursive calls: 24. After deopt 25" Summary: Windows reserves and only partially commits thread stack. For detecting more thread stack space for execution, Windows installs one-shot page as guard page just before the current commited edge. It will trigger STACK_OVERFLOW_EXCEPTION when lands on last 4 pages of thread stack space. StackYellowPages default value is 2 on Windows (plus 1 page of StackRedPages, 3 pages guarded by hotspot) so the exception happens one page before Yellow pages. Same route executed second time will have one more page brought in, this leads same execution with different stack depth(interpreter mode). We need match Windows settings so the stack overflow exception will not happen before Yellow pages. Reviewed-by: dholmes Contributed-by:
author minqi
date Tue, 18 Jun 2013 09:08:35 -0700
parents 12f651e29f6b
children b800986664f4
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 * published by the Free Software Foundation.
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
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#ifndef CPU_X86_VM_GLOBALS_X86_HPP
#define CPU_X86_VM_GLOBALS_X86_HPP

#include "utilities/globalDefinitions.hpp"
#include "utilities/macros.hpp"

// Sets the default values for platform dependent flags used by the runtime system.
// (see globals.hpp)

define_pd_global(bool, ConvertSleepToYield,      true);
define_pd_global(bool, ShareVtableStubs,         true);
define_pd_global(bool, CountInterpCalls,         true);
define_pd_global(bool, NeedsDeoptSuspend,        false); // only register window machines need this

define_pd_global(bool, ImplicitNullChecks,       true);  // Generate code for implicit null checks
define_pd_global(bool, UncommonNullCast,         true);  // Uncommon-trap NULLs past to check cast

// See 4827828 for this change. There is no globals_core_i486.hpp. I can't
// assign a different value for C2 without touching a number of files. Use
// #ifdef to minimize the change as it's late in Mantis. -- FIXME.
// c1 doesn't have this problem because the fix to 4858033 assures us
// the the vep is aligned at CodeEntryAlignment whereas c2 only aligns
// the uep and the vep doesn't get real alignment but just slops on by
// only assured that the entry instruction meets the 5 byte size requirement.
#ifdef COMPILER2
define_pd_global(intx, CodeEntryAlignment,       32);
define_pd_global(intx, CodeEntryAlignment,       16);
#endif // COMPILER2
define_pd_global(intx, OptoLoopAlignment,        16);
define_pd_global(intx, InlineFrequencyCount,     100);
define_pd_global(intx, InlineSmallCode,          1000);

define_pd_global(intx, StackYellowPages, NOT_WINDOWS(2) WINDOWS_ONLY(3));
define_pd_global(intx, StackRedPages, 1);
#ifdef AMD64
// Very large C++ stack frames using solaris-amd64 optimized builds
// due to lack of optimization caused by C++ compiler bugs
define_pd_global(intx, StackShadowPages, NOT_WIN64(20) WIN64_ONLY(6) DEBUG_ONLY(+2));
define_pd_global(intx, StackShadowPages, 4 DEBUG_ONLY(+5));
#endif // AMD64

define_pd_global(intx, PreInflateSpin,           10);

define_pd_global(bool, RewriteBytecodes,     true);
define_pd_global(bool, RewriteFrequentPairs, true);

define_pd_global(bool, UseMembar,            true);
define_pd_global(bool, UseMembar,            false);

// GC Ergo Flags
define_pd_global(uintx, CMSYoungGenPerWorker, 64*M);  // default max size of CMS young gen, per GC worker thread

#define ARCH_FLAGS(develop, product, diagnostic, experimental, notproduct) \
  develop(bool, IEEEPrecision, true,                                        \
          "Enables IEEE precision (for INTEL only)")                        \
  product(intx, FenceInstruction, 0,                                        \
          "(Unsafe,Unstable) Experimental")                                 \
  product(intx,  ReadPrefetchInstr, 0,                                      \
          "Prefetch instruction to prefetch ahead")                         \
  product(bool, UseStoreImmI16, true,                                       \
          "Use store immediate 16-bits value instruction on x86")           \
  product(intx, UseAVX, 99,                                                 \
          "Highest supported AVX instructions set on x86/x64")              \
  diagnostic(bool, UseIncDec, true,                                         \
          "Use INC, DEC instructions on x86")                               \
  product(bool, UseNewLongLShift, false,                                    \
          "Use optimized bitwise shift left")                               \
  product(bool, UseAddressNop, false,                                       \
          "Use '0F 1F [addr]' NOP instructions on x86 cpus")                \
  product(bool, UseXmmLoadAndClearUpper, true,                              \
          "Load low part of XMM register and clear upper part")             \
  product(bool, UseXmmRegToRegMoveAll, false,                               \
          "Copy all XMM register bits when moving value between registers") \
  product(bool, UseXmmI2D, false,                                           \
          "Use SSE2 CVTDQ2PD instruction to convert Integer to Double")     \
  product(bool, UseXmmI2F, false,                                           \
          "Use SSE2 CVTDQ2PS instruction to convert Integer to Float")      \
  product(bool, UseUnalignedLoadStores, false,                              \
          "Use SSE2 MOVDQU instruction for Arraycopy")                      \
  product(bool, UseFastStosb, false,                                        \
          "Use fast-string operation for zeroing: rep stosb")               \
  /* assembler */                                                           \
  product(bool, Use486InstrsOnly, false,                                    \
          "Use 80486 Compliant instruction subset")                         \
  product(bool, UseCountLeadingZerosInstruction, false,                     \
          "Use count leading zeros instruction")                            \

#endif // CPU_X86_VM_GLOBALS_X86_HPP