Mercurial > jdk8-mips64-public > hotspot / file revision
src/cpu/x86/vm/globals_x86.hpp@cd54c7e92908
src/cpu/x86/vm/globals_x86.hpp
Tue, 18 Jun 2013 09:08:35 -0700
- author
- minqi
- date
- Tue, 18 Jun 2013 09:08:35 -0700
- changeset 5274
- cd54c7e92908
- parent 5119
- 12f651e29f6b
- child 5353
- b800986664f4
- permissions
- -rw-r--r--
8015660: Test8009761.java "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: andreas.schoesser@sap.com
1 /*
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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23 */
25 #ifndef CPU_X86_VM_GLOBALS_X86_HPP
26 #define CPU_X86_VM_GLOBALS_X86_HPP
28 #include "utilities/globalDefinitions.hpp"
29 #include "utilities/macros.hpp"
31 // Sets the default values for platform dependent flags used by the runtime system.
32 // (see globals.hpp)
34 define_pd_global(bool, ConvertSleepToYield, true);
35 define_pd_global(bool, ShareVtableStubs, true);
36 define_pd_global(bool, CountInterpCalls, true);
37 define_pd_global(bool, NeedsDeoptSuspend, false); // only register window machines need this
39 define_pd_global(bool, ImplicitNullChecks, true); // Generate code for implicit null checks
40 define_pd_global(bool, UncommonNullCast, true); // Uncommon-trap NULLs past to check cast
42 // See 4827828 for this change. There is no globals_core_i486.hpp. I can't
43 // assign a different value for C2 without touching a number of files. Use
44 // #ifdef to minimize the change as it's late in Mantis. -- FIXME.
45 // c1 doesn't have this problem because the fix to 4858033 assures us
46 // the the vep is aligned at CodeEntryAlignment whereas c2 only aligns
47 // the uep and the vep doesn't get real alignment but just slops on by
48 // only assured that the entry instruction meets the 5 byte size requirement.
49 #ifdef COMPILER2
50 define_pd_global(intx, CodeEntryAlignment, 32);
51 #else
52 define_pd_global(intx, CodeEntryAlignment, 16);
53 #endif // COMPILER2
54 define_pd_global(intx, OptoLoopAlignment, 16);
55 define_pd_global(intx, InlineFrequencyCount, 100);
56 define_pd_global(intx, InlineSmallCode, 1000);
58 define_pd_global(intx, StackYellowPages, NOT_WINDOWS(2) WINDOWS_ONLY(3));
59 define_pd_global(intx, StackRedPages, 1);
60 #ifdef AMD64
61 // Very large C++ stack frames using solaris-amd64 optimized builds
62 // due to lack of optimization caused by C++ compiler bugs
63 define_pd_global(intx, StackShadowPages, NOT_WIN64(20) WIN64_ONLY(6) DEBUG_ONLY(+2));
64 #else
65 define_pd_global(intx, StackShadowPages, 4 DEBUG_ONLY(+5));
66 #endif // AMD64
68 define_pd_global(intx, PreInflateSpin, 10);
70 define_pd_global(bool, RewriteBytecodes, true);
71 define_pd_global(bool, RewriteFrequentPairs, true);
73 #ifdef _ALLBSD_SOURCE
74 define_pd_global(bool, UseMembar, true);
75 #else
76 define_pd_global(bool, UseMembar, false);
77 #endif
79 // GC Ergo Flags
80 define_pd_global(uintx, CMSYoungGenPerWorker, 64*M); // default max size of CMS young gen, per GC worker thread
82 #define ARCH_FLAGS(develop, product, diagnostic, experimental, notproduct) \
83 \
84 develop(bool, IEEEPrecision, true, \
85 "Enables IEEE precision (for INTEL only)") \
86 \
87 product(intx, FenceInstruction, 0, \
88 "(Unsafe,Unstable) Experimental") \
89 \
90 product(intx, ReadPrefetchInstr, 0, \
91 "Prefetch instruction to prefetch ahead") \
92 \
93 product(bool, UseStoreImmI16, true, \
94 "Use store immediate 16-bits value instruction on x86") \
95 \
96 product(intx, UseAVX, 99, \
97 "Highest supported AVX instructions set on x86/x64") \
98 \
99 diagnostic(bool, UseIncDec, true, \
100 "Use INC, DEC instructions on x86") \
101 \
102 product(bool, UseNewLongLShift, false, \
103 "Use optimized bitwise shift left") \
104 \
105 product(bool, UseAddressNop, false, \
106 "Use '0F 1F [addr]' NOP instructions on x86 cpus") \
107 \
108 product(bool, UseXmmLoadAndClearUpper, true, \
109 "Load low part of XMM register and clear upper part") \
110 \
111 product(bool, UseXmmRegToRegMoveAll, false, \
112 "Copy all XMM register bits when moving value between registers") \
113 \
114 product(bool, UseXmmI2D, false, \
115 "Use SSE2 CVTDQ2PD instruction to convert Integer to Double") \
116 \
117 product(bool, UseXmmI2F, false, \
118 "Use SSE2 CVTDQ2PS instruction to convert Integer to Float") \
119 \
120 product(bool, UseUnalignedLoadStores, false, \
121 "Use SSE2 MOVDQU instruction for Arraycopy") \
122 \
123 product(bool, UseFastStosb, false, \
124 "Use fast-string operation for zeroing: rep stosb") \
125 \
126 /* assembler */ \
127 product(bool, Use486InstrsOnly, false, \
128 "Use 80486 Compliant instruction subset") \
129 \
130 product(bool, UseCountLeadingZerosInstruction, false, \
131 "Use count leading zeros instruction") \
133 #endif // CPU_X86_VM_GLOBALS_X86_HPP
