Mercurial > hg > truffle
comparison src/cpu/ppc/vm/globals_ppc.hpp @ 14408:ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
Summary: With this change the HotSpot core build works on Linux/PPC64. The VM succesfully executes simple test programs.
Reviewed-by: kvn
author | goetz |
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date | Fri, 02 Aug 2013 16:46:45 +0200 |
parents | |
children | bd29f2c96a5f |
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14407:94c202aa2646 | 14408:ec28f9c041ff |
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1 /* | |
2 * Copyright (c) 2002, 2013, Oracle and/or its affiliates. All rights reserved. | |
3 * Copyright 2012, 2013 SAP AG. All rights reserved. | |
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
5 * | |
6 * This code is free software; you can redistribute it and/or modify it | |
7 * under the terms of the GNU General Public License version 2 only, as | |
8 * published by the Free Software Foundation. | |
9 * | |
10 * This code is distributed in the hope that it will be useful, but WITHOUT | |
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
13 * version 2 for more details (a copy is included in the LICENSE file that | |
14 * accompanied this code). | |
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_PPC_VM_GLOBALS_PPC_HPP | |
27 #define CPU_PPC_VM_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, ConvertSleepToYield, true); | |
36 define_pd_global(bool, ShareVtableStubs, false); // Improves performance markedly for mtrt and compress. | |
37 define_pd_global(bool, NeedsDeoptSuspend, false); // Only register window machines need this. | |
38 | |
39 | |
40 define_pd_global(bool, ImplicitNullChecks, true); // Generate code for implicit null checks. | |
41 define_pd_global(bool, UncommonNullCast, true); // Uncommon-trap NULLs passed to check cast. | |
42 | |
43 // Use large code-entry alignment. | |
44 define_pd_global(intx, CodeEntryAlignment, 128); | |
45 define_pd_global(intx, OptoLoopAlignment, 16); | |
46 define_pd_global(intx, InlineFrequencyCount, 100); | |
47 define_pd_global(intx, InlineSmallCode, 1500); | |
48 | |
49 define_pd_global(intx, PreInflateSpin, 10); | |
50 | |
51 // Flags for template interpreter. | |
52 define_pd_global(bool, RewriteBytecodes, true); | |
53 define_pd_global(bool, RewriteFrequentPairs, true); | |
54 | |
55 define_pd_global(bool, UseMembar, false); | |
56 | |
57 // GC Ergo Flags | |
58 define_pd_global(intx, CMSYoungGenPerWorker, 16*M); // Default max size of CMS young gen, per GC worker thread. | |
59 | |
60 | |
61 // Platform dependent flag handling: flags only defined on this platform. | |
62 #define ARCH_FLAGS(develop, product, diagnostic, experimental, notproduct) \ | |
63 product(uintx, PowerArchitecturePPC64, 0, \ | |
64 "CPU Version: x for PowerX. Currently recognizes Power5 to " \ | |
65 "Power7. Default is 0. CPUs newer than Power7 will be " \ | |
66 "recognized as Power7.") \ | |
67 \ | |
68 /* Reoptimize code-sequences of calls at runtime, e.g. replace an */ \ | |
69 /* indirect call by a direct call. */ \ | |
70 product(bool, ReoptimizeCallSequences, true, \ | |
71 "Reoptimize code-sequences of calls at runtime.") \ | |
72 \ | |
73 product(bool, UseLoadInstructionsForStackBangingPPC64, false, \ | |
74 "Use load instructions for stack banging.") \ | |
75 \ | |
76 /* special instructions */ \ | |
77 \ | |
78 product(bool, UseCountLeadingZerosInstructionsPPC64, true, \ | |
79 "Use count leading zeros instructions.") \ | |
80 \ | |
81 product(bool, UseExtendedLoadAndReserveInstructionsPPC64, false, \ | |
82 "Use extended versions of load-and-reserve instructions.") \ | |
83 \ | |
84 product(bool, UseRotateAndMaskInstructionsPPC64, true, \ | |
85 "Use rotate and mask instructions.") \ | |
86 \ | |
87 product(bool, UseStaticBranchPredictionInCompareAndSwapPPC64, true, \ | |
88 "Use static branch prediction hints in CAS operations.") \ | |
89 \ | |
90 /* Trap based checks. */ \ | |
91 /* Trap based checks use the ppc trap instructions to check certain */ \ | |
92 /* conditions. This instruction raises a SIGTRAP caught by the */ \ | |
93 /* exception handler of the VM. */ \ | |
94 product(bool, UseSIGTRAP, false, \ | |
95 "Allow trap instructions that make use of SIGTRAP. Use this to " \ | |
96 "switch off all optimizations requiring SIGTRAP.") \ | |
97 product(bool, TrapBasedICMissChecks, true, \ | |
98 "Raise and handle SIGTRAP if inline cache miss detected.") \ | |
99 product(bool, TrapBasedNotEntrantChecks, true, \ | |
100 "Raise and handle SIGTRAP if calling not entrant or zombie" \ | |
101 " method.") \ | |
102 product(bool, TrapBasedNullChecks, true, \ | |
103 "Generate code for null checks that uses a cmp and trap " \ | |
104 "instruction raising SIGTRAP. This is only used if an access to" \ | |
105 "null (+offset) will not raise a SIGSEGV.") \ | |
106 product(bool, TrapBasedRangeChecks, true, \ | |
107 "Raise and handle SIGTRAP if array out of bounds check fails.") \ | |
108 product(bool, TraceTraps, false, "Trace all traps the signal handler" \ | |
109 "handles.") \ | |
110 \ | |
111 product(bool, ZapMemory, false, "Write 0x0101... to empty memory." \ | |
112 " Use this to ease debugging.") \ | |
113 | |
114 | |
115 | |
116 #endif // CPU_PPC_VM_GLOBALS_PPC_HPP |