generateJvmOffsets.cpp revision 8818:4ef62948f2c9 
1/*
2 * Copyright (c) 2003, 2015, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25/*
26 * This is to provide sanity check in jhelper.d which compares SCCS
27 * versions of generateJvmOffsets.cpp used to create and extract
28 * contents of __JvmOffsets[] table.
29 * The __JvmOffsets[] table is located in generated JvmOffsets.cpp.
30 *
31 * GENOFFS_SCCS_VER 34
32 */
33
34#include "generateJvmOffsets.h"
35
36/* A workaround for private and protected fields */
37#define private   public
38#define protected public
39
40// not on macosx #include <proc_service.h>
41#include "code/codeBlob.hpp"
42#include "code/nmethod.hpp"
43#include "code/pcDesc.hpp"
44#include "gc/shared/collectedHeap.hpp"
45#include "memory/heap.hpp"
46#include "memory/memRegion.hpp"
47#include "memory/universe.hpp"
48#include "memory/virtualspace.hpp"
49#include "oops/constMethod.hpp"
50#include "oops/klass.hpp"
51#include "oops/method.hpp"
52#include "oops/oop.hpp"
53#include "oops/symbol.hpp"
54#include "runtime/vmStructs.hpp"
55#include "utilities/accessFlags.hpp"
56#include "utilities/globalDefinitions.hpp"
57
58// These are defined somewhere for Solaris
59#define PR_MODEL_ILP32 1
60#define PR_MODEL_LP64  2
61
62#ifdef COMPILER1
63#ifdef ASSERT
64
65/*
66 * To avoid the most part of potential link errors
67 * we link this program with -z nodefs .
68 *
69 * But for 'debug1' and 'fastdebug1' we still have to provide
70 * a particular workaround for the following symbols below.
71 * It will be good to find out a generic way in the future.
72 */
73
74#pragma weak tty
75#pragma weak CMSExpAvgFactor
76
77#if defined(i386) || defined(__i386) || defined(__amd64)
78#pragma weak noreg
79#endif /* i386 */
80
81LIR_Opr LIR_OprFact::illegalOpr = (LIR_Opr) 0;
82
83address StubRoutines::_call_stub_return_address = NULL;
84
85StubQueue* AbstractInterpreter::_code = NULL;
86
87#endif /* ASSERT */
88#endif /* COMPILER1 */
89
90#define GEN_OFFS_NAME(Type,Name,OutputType)             \
91  switch(gen_variant) {                                 \
92  case GEN_OFFSET:                                      \
93    printf("#define OFFSET_%-33s %ld\n",                \
94            #OutputType #Name, offset_of(Type, Name));  \
95    break;                                              \
96  case GEN_INDEX:                                       \
97    printf("#define IDX_OFFSET_%-33s %d\n",             \
98            #OutputType #Name, index++);                \
99    break;                                              \
100  case GEN_TABLE:                                       \
101    printf("\tOFFSET_%s,\n", #OutputType #Name);        \
102    break;                                              \
103  }
104
105#define GEN_OFFS(Type,Name)                             \
106  GEN_OFFS_NAME(Type,Name,Type)
107
108#define GEN_SIZE(Type)                                  \
109  switch(gen_variant) {                                 \
110  case GEN_OFFSET:                                      \
111    printf("#define SIZE_%-35s %ld\n",                  \
112            #Type, sizeof(Type));                       \
113    break;                                              \
114  case GEN_INDEX:                                       \
115    printf("#define IDX_SIZE_%-35s %d\n",               \
116            #Type, index++);                            \
117    break;                                              \
118  case GEN_TABLE:                                       \
119    printf("\tSIZE_%s,\n", #Type);                      \
120    break;                                              \
121  }
122
123#define GEN_VALUE(String,Value)                         \
124  switch(gen_variant) {                                 \
125  case GEN_OFFSET:                                      \
126    printf("#define %-40s %d\n", #String, Value);       \
127    break;                                              \
128  case GEN_INDEX:                                       \
129    printf("#define IDX_%-40s %d\n", #String, index++); \
130    break;                                              \
131  case GEN_TABLE:                                       \
132    printf("\t" #String ",\n");                         \
133    break;                                              \
134  }
135
136void gen_prologue(GEN_variant gen_variant) {
137    const char *suffix;
138
139    switch(gen_variant) {
140      case GEN_OFFSET: suffix = ".h";        break;
141      case GEN_INDEX:  suffix = "Index.h";   break;
142      case GEN_TABLE:  suffix = ".cpp";      break;
143    }
144
145    printf("/*\n");
146    printf(" * JvmOffsets%s !!!DO NOT EDIT!!! \n", suffix);
147    printf(" * The generateJvmOffsets program generates this file!\n");
148    printf(" */\n\n");
149    switch(gen_variant) {
150
151      case GEN_OFFSET:
152      case GEN_INDEX:
153        break;
154
155      case GEN_TABLE:
156        printf("#include \"JvmOffsets.h\"\n");
157        printf("\n");
158        printf("int __JvmOffsets[] = {\n");
159        break;
160    }
161}
162
163void gen_epilogue(GEN_variant gen_variant) {
164    if (gen_variant != GEN_TABLE) {
165        return;
166    }
167    printf("};\n\n");
168    return;
169}
170
171int generateJvmOffsets(GEN_variant gen_variant) {
172  int index = 0;        /* It is used to generate JvmOffsetsIndex.h */
173  int pointer_size = sizeof(void *);
174  int data_model = (pointer_size == 4) ? PR_MODEL_ILP32 : PR_MODEL_LP64;
175
176  gen_prologue(gen_variant);
177
178  GEN_VALUE(DATA_MODEL, data_model);
179  GEN_VALUE(POINTER_SIZE, pointer_size);
180#if defined(TIERED)
181  GEN_VALUE(COMPILER, 3);
182#elif COMPILER1
183  GEN_VALUE(COMPILER, 1);
184#elif COMPILER2
185  GEN_VALUE(COMPILER, 2);
186#else
187  GEN_VALUE(COMPILER, 0);
188#endif // COMPILER1 && COMPILER2
189  printf("\n");
190
191  GEN_OFFS(CollectedHeap, _reserved);
192  GEN_OFFS(MemRegion, _start);
193  GEN_OFFS(MemRegion, _word_size);
194  GEN_SIZE(HeapWord);
195  printf("\n");
196
197  GEN_OFFS(VMStructEntry, typeName);
198  GEN_OFFS(VMStructEntry, fieldName);
199  GEN_OFFS(VMStructEntry, address);
200  GEN_SIZE(VMStructEntry);
201  printf("\n");
202
203  GEN_VALUE(MAX_METHOD_CODE_SIZE, max_method_code_size);
204#if defined(sparc) || defined(__sparc)
205  GEN_VALUE(OFFSET_interpreter_frame_method, 2 * pointer_size);     /* L2 in saved window */
206  GEN_VALUE(OFFSET_interpreter_frame_sender_sp, 13 * pointer_size); /* I5 in saved window */
207  // Fake value for consistency. It is not going to be used.
208  GEN_VALUE(OFFSET_interpreter_frame_bcp_offset, 0xFFFF);
209#elif defined(i386) || defined(__i386) || defined(__amd64)
210  GEN_VALUE(OFFSET_interpreter_frame_sender_sp, -1 * pointer_size);
211  GEN_VALUE(OFFSET_interpreter_frame_method, -3 * pointer_size);
212  GEN_VALUE(OFFSET_interpreter_frame_bcp_offset, -7 * pointer_size);
213#endif
214
215  GEN_OFFS(Klass, _name);
216  GEN_OFFS(ConstantPool, _pool_holder);
217  printf("\n");
218
219  GEN_VALUE(OFFSET_HeapBlockHeader_used, (int) offset_of(HeapBlock::Header, _used));
220  GEN_OFFS(oopDesc, _metadata);
221  printf("\n");
222
223  GEN_VALUE(AccessFlags_NATIVE, JVM_ACC_NATIVE);
224  GEN_VALUE(ConstMethod_has_linenumber_table, ConstMethod::_has_linenumber_table);
225  GEN_OFFS(AccessFlags, _flags);
226  GEN_OFFS(Symbol, _length);
227  GEN_OFFS(Symbol, _body);
228  printf("\n");
229
230  GEN_OFFS(Method, _constMethod);
231  GEN_OFFS(Method, _access_flags);
232  printf("\n");
233
234  GEN_OFFS(ConstMethod, _constants);
235  GEN_OFFS(ConstMethod, _flags);
236  GEN_OFFS(ConstMethod, _code_size);
237  GEN_OFFS(ConstMethod, _name_index);
238  GEN_OFFS(ConstMethod, _signature_index);
239  printf("\n");
240
241  GEN_OFFS(CodeHeap, _memory);
242  GEN_OFFS(CodeHeap, _segmap);
243  GEN_OFFS(CodeHeap, _log2_segment_size);
244  printf("\n");
245
246  GEN_OFFS(VirtualSpace, _low_boundary);
247  GEN_OFFS(VirtualSpace, _high_boundary);
248  GEN_OFFS(VirtualSpace, _low);
249  GEN_OFFS(VirtualSpace, _high);
250  printf("\n");
251
252  /* We need to use different names here because of the template parameter */
253  GEN_OFFS_NAME(GrowableArray<CodeHeap*>, _data, GrowableArray_CodeHeap);
254  GEN_OFFS_NAME(GrowableArray<CodeHeap*>, _len, GrowableArray_CodeHeap);
255  printf("\n");
256
257  GEN_OFFS(CodeBlob, _name);
258  GEN_OFFS(CodeBlob, _header_size);
259  GEN_OFFS(CodeBlob, _content_offset);
260  GEN_OFFS(CodeBlob, _code_offset);
261  GEN_OFFS(CodeBlob, _data_offset);
262  GEN_OFFS(CodeBlob, _frame_size);
263  printf("\n");
264
265  GEN_OFFS(nmethod, _method);
266  GEN_OFFS(nmethod, _dependencies_offset);
267  GEN_OFFS(nmethod, _metadata_offset);
268  GEN_OFFS(nmethod, _scopes_data_offset);
269  GEN_OFFS(nmethod, _scopes_pcs_offset);
270  GEN_OFFS(nmethod, _handler_table_offset);
271  GEN_OFFS(nmethod, _deoptimize_offset);
272  GEN_OFFS(nmethod, _orig_pc_offset);
273
274  GEN_OFFS(PcDesc, _pc_offset);
275  GEN_OFFS(PcDesc, _scope_decode_offset);
276
277  printf("\n");
278
279  GEN_OFFS(NarrowPtrStruct, _base);
280  GEN_OFFS(NarrowPtrStruct, _shift);
281  printf("\n");
282
283  GEN_VALUE(SIZE_HeapBlockHeader, (int) sizeof(HeapBlock::Header));
284  GEN_SIZE(oopDesc);
285  GEN_SIZE(ConstantPool);
286  printf("\n");
287
288  GEN_SIZE(PcDesc);
289  GEN_SIZE(Method);
290  GEN_SIZE(ConstMethod);
291  GEN_SIZE(nmethod);
292  GEN_SIZE(CodeBlob);
293  GEN_SIZE(BufferBlob);
294  GEN_SIZE(SingletonBlob);
295  GEN_SIZE(RuntimeStub);
296  GEN_SIZE(SafepointBlob);
297
298  gen_epilogue(gen_variant);
299  printf("\n");
300
301  fflush(stdout);
302  return 0;
303}
304