20 * CA 95054 USA or visit www.sun.com if you need additional information or |
20 * CA 95054 USA or visit www.sun.com if you need additional information or |
21 * have any questions. |
21 * have any questions. |
22 * |
22 * |
23 */ |
23 */ |
24 |
24 |
25 // |
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26 // Sets the default values for platform dependent flags used by the runtime system. |
25 // Sets the default values for platform dependent flags used by the runtime system. |
27 // (see globals.hpp) |
26 // (see globals.hpp) |
28 // |
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29 |
27 |
30 define_pd_global(bool, ConvertSleepToYield, true); |
28 define_pd_global(bool, ConvertSleepToYield, true); |
31 define_pd_global(bool, ShareVtableStubs, true); |
29 define_pd_global(bool, ShareVtableStubs, true); |
32 define_pd_global(bool, CountInterpCalls, true); |
30 define_pd_global(bool, CountInterpCalls, true); |
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31 define_pd_global(bool, NeedsDeoptSuspend, false); // only register window machines need this |
33 |
32 |
34 define_pd_global(bool, ImplicitNullChecks, true); // Generate code for implicit null checks |
33 define_pd_global(bool, ImplicitNullChecks, true); // Generate code for implicit null checks |
35 define_pd_global(bool, UncommonNullCast, true); // Uncommon-trap NULLs past to check cast |
34 define_pd_global(bool, UncommonNullCast, true); // Uncommon-trap NULLs past to check cast |
36 |
35 |
37 // See 4827828 for this change. There is no globals_core_i486.hpp. I can't |
36 // See 4827828 for this change. There is no globals_core_i486.hpp. I can't |
38 // assign a different value for C2 without touching a number of files. Use |
37 // assign a different value for C2 without touching a number of files. Use |
39 // #ifdef to minimize the change as it's late in Mantis. -- FIXME. |
38 // #ifdef to minimize the change as it's late in Mantis. -- FIXME. |
40 // c1 doesn't have this problem because the fix to 4858033 assures us |
39 // c1 doesn't have this problem because the fix to 4858033 assures us |
41 // the the vep is aligned at CodeEntryAlignment whereas c2 only aligns |
40 // the the vep is aligned at CodeEntryAlignment whereas c2 only aligns |
42 // the uep and the vep doesn't get real alignment but just slops on by |
41 // the uep and the vep doesn't get real alignment but just slops on by |
43 // only assured that the entry instruction meets the 5 byte size requirement. |
42 // only assured that the entry instruction meets the 5 byte size requirement. |
44 #ifdef COMPILER2 |
43 #ifdef COMPILER2 |
45 define_pd_global(intx, CodeEntryAlignment, 32); |
44 define_pd_global(intx, CodeEntryAlignment, 32); |
46 #else |
45 #else |
47 define_pd_global(intx, CodeEntryAlignment, 16); |
46 define_pd_global(intx, CodeEntryAlignment, 16); |
48 #endif // COMPILER2 |
47 #endif // COMPILER2 |
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48 define_pd_global(intx, InlineFrequencyCount, 100); |
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49 define_pd_global(intx, InlineSmallCode, 1000); |
49 |
50 |
50 define_pd_global(bool, NeedsDeoptSuspend, false); // only register window machines need this |
51 define_pd_global(intx, StackYellowPages, 2); |
51 |
52 define_pd_global(intx, StackRedPages, 1); |
52 define_pd_global(uintx, TLABSize, 0); |
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53 #ifdef AMD64 |
53 #ifdef AMD64 |
54 define_pd_global(uintx, NewSize, ScaleForWordSize(2048 * K)); |
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55 // Very large C++ stack frames using solaris-amd64 optimized builds |
54 // Very large C++ stack frames using solaris-amd64 optimized builds |
56 // due to lack of optimization caused by C++ compiler bugs |
55 // due to lack of optimization caused by C++ compiler bugs |
57 define_pd_global(intx, StackShadowPages, SOLARIS_ONLY(20) NOT_SOLARIS(6) DEBUG_ONLY(+2)); |
56 define_pd_global(intx, StackShadowPages, SOLARIS_ONLY(20) NOT_SOLARIS(6) DEBUG_ONLY(+2)); |
58 #else |
57 #else |
59 define_pd_global(uintx, NewSize, 1024 * K); |
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60 define_pd_global(intx, StackShadowPages, 3 DEBUG_ONLY(+1)); |
58 define_pd_global(intx, StackShadowPages, 3 DEBUG_ONLY(+1)); |
61 #endif // AMD64 |
59 #endif // AMD64 |
62 define_pd_global(intx, InlineFrequencyCount, 100); |
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63 define_pd_global(intx, InlineSmallCode, 1000); |
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64 define_pd_global(intx, PreInflateSpin, 10); |
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65 |
60 |
66 define_pd_global(intx, StackYellowPages, 2); |
61 define_pd_global(intx, PreInflateSpin, 10); |
67 define_pd_global(intx, StackRedPages, 1); |
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68 |
62 |
69 define_pd_global(bool, RewriteBytecodes, true); |
63 define_pd_global(bool, RewriteBytecodes, true); |
70 define_pd_global(bool, RewriteFrequentPairs, true); |
64 define_pd_global(bool, RewriteFrequentPairs, true); |