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comparison src/share/vm/memory/metaspaceShared.hpp @ 6854:fb19af007ffc

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7189254: Change makefiles for more flexibility to override defaults Summary: Change makefiles so that targets and parameters can be overridden by alternate makefiles. Reviewed-by: dholmes, coleenp
author jprovino
date Wed, 10 Oct 2012 14:35:58 -0400
parents da91efe96a93
children 6e0cb14ce59b
comparison
equal deleted inserted replaced
6830:81e878c53615 6854:fb19af007ffc
54 md = 2, // miscellaneous data for initializing tables, etc. 54 md = 2, // miscellaneous data for initializing tables, etc.
55 mc = 3, // miscellaneous code - vtable replacement. 55 mc = 3, // miscellaneous code - vtable replacement.
56 n_regions = 4 56 n_regions = 4
57 }; 57 };
58 58
59 static void set_max_alignment(int alignment) KERNEL_RETURN; 59 // Accessor functions to save shared space created for metadata, which has
60 static int max_alignment() KERNEL_RETURN_(0); 60 // extra space allocated at the end for miscellaneous data and code.
61 static void set_max_alignment(int alignment) {
62 CDS_ONLY(_max_alignment = alignment);
63 }
61 64
62 static void preload_and_dump(TRAPS) KERNEL_RETURN; 65 static int max_alignment() {
63 static ReservedSpace* shared_rs(); 66 CDS_ONLY(return _max_alignment);
64 static void set_shared_rs(ReservedSpace* rs) KERNEL_RETURN; 67 NOT_CDS(return 0);
68 }
65 69
66 static bool map_shared_spaces(FileMapInfo* mapinfo) KERNEL_RETURN_(false); 70 static void preload_and_dump(TRAPS) NOT_CDS_RETURN;
67 static void initialize_shared_spaces() KERNEL_RETURN; 71
72 static ReservedSpace* shared_rs() {
73 CDS_ONLY(return _shared_rs);
74 NOT_CDS(return NULL);
75 }
76
77 static void set_shared_rs(ReservedSpace* rs) {
78 CDS_ONLY(_shared_rs = rs;)
79 }
80
81 static bool map_shared_spaces(FileMapInfo* mapinfo) NOT_CDS_RETURN_(false);
82 static void initialize_shared_spaces() NOT_CDS_RETURN;
68 83
69 // Return true if given address is in the mapped shared space. 84 // Return true if given address is in the mapped shared space.
70 static bool is_in_shared_space(const void* p) KERNEL_RETURN_(false); 85 static bool is_in_shared_space(const void* p) NOT_CDS_RETURN_(false);
71 86
72 static void generate_vtable_methods(void** vtbl_list, 87 static void generate_vtable_methods(void** vtbl_list,
73 void** vtable, 88 void** vtable,
74 char** md_top, char* md_end, 89 char** md_top, char* md_end,
75 char** mc_top, char* mc_end); 90 char** mc_top, char* mc_end);
77 92
78 // JVM/TI RedefineClasses() support: 93 // JVM/TI RedefineClasses() support:
79 // Remap the shared readonly space to shared readwrite, private if 94 // Remap the shared readonly space to shared readwrite, private if
80 // sharing is enabled. Simply returns true if sharing is not enabled 95 // sharing is enabled. Simply returns true if sharing is not enabled
81 // or if the remapping has already been done by a prior call. 96 // or if the remapping has already been done by a prior call.
82 static bool remap_shared_readonly_as_readwrite() KERNEL_RETURN_(true); 97 static bool remap_shared_readonly_as_readwrite() NOT_CDS_RETURN_(true);
83 98
84 static void print_shared_spaces(); 99 static void print_shared_spaces();
85 }; 100 };
86 #endif // SHARE_VM_MEMORY_METASPACE_SHARED_HPP 101 #endif // SHARE_VM_MEMORY_METASPACE_SHARED_HPP