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comparison src/share/vm/code/stubs.hpp @ 6796:b31471cdc53e

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7200163: add CodeComments functionality to assember stubs Summary: Pass the codeBuffer to the Stub constructor, and adapts the disassembler to print the comments. Reviewed-by: jrose, kvn, twisti Contributed-by: goetz.lindenmaier@sap.com
author kvn
date Mon, 24 Sep 2012 10:30:14 -0700
parents d2a62e0f25eb
children b9a9ed0f8eeb
comparison
equal deleted inserted replaced
6795:7eca5de9e0b6 6796:b31471cdc53e
23 */ 23 */
24 24
25 #ifndef SHARE_VM_CODE_STUBS_HPP 25 #ifndef SHARE_VM_CODE_STUBS_HPP
26 #define SHARE_VM_CODE_STUBS_HPP 26 #define SHARE_VM_CODE_STUBS_HPP
27 27
28 #include "asm/codeBuffer.hpp"
28 #include "memory/allocation.hpp" 29 #include "memory/allocation.hpp"
29 #ifdef TARGET_OS_FAMILY_linux 30 #ifdef TARGET_OS_FAMILY_linux
30 # include "os_linux.inline.hpp" 31 # include "os_linux.inline.hpp"
31 #endif 32 #endif
32 #ifdef TARGET_OS_FAMILY_solaris 33 #ifdef TARGET_OS_FAMILY_solaris
69 70
70 71
71 class Stub VALUE_OBJ_CLASS_SPEC { 72 class Stub VALUE_OBJ_CLASS_SPEC {
72 public: 73 public:
73 // Initialization/finalization 74 // Initialization/finalization
74 void initialize(int size) { ShouldNotCallThis(); } // called to initialize/specify the stub's size 75 void initialize(int size,
76 CodeComments& comments) { ShouldNotCallThis(); } // called to initialize/specify the stub's size
75 void finalize() { ShouldNotCallThis(); } // called before the stub is deallocated 77 void finalize() { ShouldNotCallThis(); } // called before the stub is deallocated
76 78
77 // General info/converters 79 // General info/converters
78 int size() const { ShouldNotCallThis(); return 0; } // must return the size provided by initialize 80 int size() const { ShouldNotCallThis(); return 0; } // must return the size provided by initialize
79 static int code_size_to_size(int code_size) { ShouldNotCallThis(); return 0; } // computes the size given the code size 81 static int code_size_to_size(int code_size) { ShouldNotCallThis(); return 0; } // computes the size given the code size
102 // one stub interface instance required per stub queue. 104 // one stub interface instance required per stub queue.
103 105
104 class StubInterface: public CHeapObj<mtCode> { 106 class StubInterface: public CHeapObj<mtCode> {
105 public: 107 public:
106 // Initialization/finalization 108 // Initialization/finalization
107 virtual void initialize(Stub* self, int size) = 0; // called after creation (called twice if allocated via (request, commit)) 109 virtual void initialize(Stub* self, int size,
110 CodeComments& comments) = 0; // called after creation (called twice if allocated via (request, commit))
108 virtual void finalize(Stub* self) = 0; // called before deallocation 111 virtual void finalize(Stub* self) = 0; // called before deallocation
109 112
110 // General info/converters 113 // General info/converters
111 virtual int size(Stub* self) const = 0; // the total size of the stub in bytes (must be a multiple of CodeEntryAlignment) 114 virtual int size(Stub* self) const = 0; // the total size of the stub in bytes (must be a multiple of CodeEntryAlignment)
112 virtual int code_size_to_size(int code_size) const = 0; // computes the total stub size in bytes given the code size in bytes 115 virtual int code_size_to_size(int code_size) const = 0; // computes the total stub size in bytes given the code size in bytes
130 private: \ 133 private: \
131 static stub* cast(Stub* self) { return (stub*)self; } \ 134 static stub* cast(Stub* self) { return (stub*)self; } \
132 \ 135 \
133 public: \ 136 public: \
134 /* Initialization/finalization */ \ 137 /* Initialization/finalization */ \
135 virtual void initialize(Stub* self, int size) { cast(self)->initialize(size); } \ 138 virtual void initialize(Stub* self, int size, \
139 CodeComments& comments) { cast(self)->initialize(size, comments); } \
136 virtual void finalize(Stub* self) { cast(self)->finalize(); } \ 140 virtual void finalize(Stub* self) { cast(self)->finalize(); } \
137 \ 141 \
138 /* General info */ \ 142 /* General info */ \
139 virtual int size(Stub* self) const { return cast(self)->size(); } \ 143 virtual int size(Stub* self) const { return cast(self)->size(); } \
140 virtual int code_size_to_size(int code_size) const { return stub::code_size_to_size(code_size); } \ 144 virtual int code_size_to_size(int code_size) const { return stub::code_size_to_size(code_size); } \
169 int index_of(Stub* s) const { int i = (address)s - _stub_buffer; check_index(i); return i; } 173 int index_of(Stub* s) const { int i = (address)s - _stub_buffer; check_index(i); return i; }
170 Stub* stub_at(int i) const { check_index(i); return (Stub*)(_stub_buffer + i); } 174 Stub* stub_at(int i) const { check_index(i); return (Stub*)(_stub_buffer + i); }
171 Stub* current_stub() const { return stub_at(_queue_end); } 175 Stub* current_stub() const { return stub_at(_queue_end); }
172 176
173 // Stub functionality accessed via interface 177 // Stub functionality accessed via interface
174 void stub_initialize(Stub* s, int size) { assert(size % CodeEntryAlignment == 0, "size not aligned"); _stub_interface->initialize(s, size); } 178 void stub_initialize(Stub* s, int size,
179 CodeComments& comments) { assert(size % CodeEntryAlignment == 0, "size not aligned"); _stub_interface->initialize(s, size, comments); }
175 void stub_finalize(Stub* s) { _stub_interface->finalize(s); } 180 void stub_finalize(Stub* s) { _stub_interface->finalize(s); }
176 int stub_size(Stub* s) const { return _stub_interface->size(s); } 181 int stub_size(Stub* s) const { return _stub_interface->size(s); }
177 bool stub_contains(Stub* s, address pc) const { return _stub_interface->code_begin(s) <= pc && pc < _stub_interface->code_end(s); } 182 bool stub_contains(Stub* s, address pc) const { return _stub_interface->code_begin(s) <= pc && pc < _stub_interface->code_end(s); }
178 int stub_code_size_to_size(int code_size) const { return _stub_interface->code_size_to_size(code_size); } 183 int stub_code_size_to_size(int code_size) const { return _stub_interface->code_size_to_size(code_size); }
179 void stub_verify(Stub* s) { _stub_interface->verify(s); } 184 void stub_verify(Stub* s) { _stub_interface->verify(s); }
198 address code_end() const { return _stub_buffer + _buffer_limit; } 203 address code_end() const { return _stub_buffer + _buffer_limit; }
199 204
200 // Stub allocation (atomic transactions) 205 // Stub allocation (atomic transactions)
201 Stub* request_committed(int code_size); // request a stub that provides exactly code_size space for code 206 Stub* request_committed(int code_size); // request a stub that provides exactly code_size space for code
202 Stub* request(int requested_code_size); // request a stub with a (maximum) code space - locks the queue 207 Stub* request(int requested_code_size); // request a stub with a (maximum) code space - locks the queue
203 void commit (int committed_code_size); // commit the previously requested stub - unlocks the queue 208 void commit (int committed_code_size,
209 CodeComments& comments); // commit the previously requested stub - unlocks the queue
204 210
205 // Stub deallocation 211 // Stub deallocation
206 void remove_first(); // remove the first stub in the queue 212 void remove_first(); // remove the first stub in the queue
207 void remove_first(int n); // remove the first n stubs in the queue 213 void remove_first(int n); // remove the first n stubs in the queue
208 void remove_all(); // remove all stubs in the queue 214 void remove_all(); // remove all stubs in the queue