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ee9dd372 TT |
1 | // prims.cc - Code for core of runtime environment. |
2 | ||
e1b871ec | 3 | /* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation |
ee9dd372 TT |
4 | |
5 | This file is part of libgcj. | |
6 | ||
7 | This software is copyrighted work licensed under the terms of the | |
8 | Libgcj License. Please consult the file "LIBGCJ_LICENSE" for | |
9 | details. */ | |
10 | ||
11 | #include <config.h> | |
b8fe3c1e | 12 | #include <platform.h> |
878885b4 | 13 | |
ee9dd372 TT |
14 | #include <stdlib.h> |
15 | #include <stdarg.h> | |
16 | #include <stdio.h> | |
17 | #include <string.h> | |
9b0cb287 | 18 | #include <signal.h> |
ee9dd372 | 19 | |
283a159f AH |
20 | #ifdef HAVE_UNISTD_H |
21 | #include <unistd.h> | |
22 | #endif | |
23 | ||
27e934d8 | 24 | #include <gcj/cni.h> |
ee9dd372 | 25 | #include <jvm.h> |
a4e44caa | 26 | #include <java-signal.h> |
27e934d8 | 27 | #include <java-threads.h> |
6187fd28 | 28 | #include <java-interp.h> |
ee9dd372 | 29 | |
54c2f04b AG |
30 | #ifdef ENABLE_JVMPI |
31 | #include <jvmpi.h> | |
c93d7fae | 32 | #include <java/lang/ThreadGroup.h> |
54c2f04b AG |
33 | #endif |
34 | ||
86acf60c | 35 | #ifdef INTERPRETER |
078b3073 KS |
36 | #include <jvmti.h> |
37 | #include "jvmti-int.h" | |
86acf60c | 38 | #endif |
078b3073 | 39 | |
ffccc6be AG |
40 | #ifndef DISABLE_GETENV_PROPERTIES |
41 | #include <ctype.h> | |
42 | #include <java-props.h> | |
43 | #define PROCESS_GCJ_PROPERTIES process_gcj_properties() | |
44 | #else | |
45 | #define PROCESS_GCJ_PROPERTIES | |
46 | #endif // DISABLE_GETENV_PROPERTIES | |
47 | ||
ee9dd372 | 48 | #include <java/lang/Class.h> |
6aaeb975 | 49 | #include <java/lang/ClassLoader.h> |
ee9dd372 TT |
50 | #include <java/lang/Runtime.h> |
51 | #include <java/lang/String.h> | |
52 | #include <java/lang/Thread.h> | |
53 | #include <java/lang/ThreadGroup.h> | |
ee9dd372 | 54 | #include <java/lang/ArrayIndexOutOfBoundsException.h> |
a4e44caa | 55 | #include <java/lang/ArithmeticException.h> |
ee9dd372 | 56 | #include <java/lang/ClassFormatError.h> |
c1a9321f | 57 | #include <java/lang/ClassNotFoundException.h> |
68940f3f | 58 | #include <java/lang/InternalError.h> |
ee9dd372 | 59 | #include <java/lang/NegativeArraySizeException.h> |
c1a9321f | 60 | #include <java/lang/NoClassDefFoundError.h> |
ee9dd372 TT |
61 | #include <java/lang/NullPointerException.h> |
62 | #include <java/lang/OutOfMemoryError.h> | |
ee9dd372 | 63 | #include <java/lang/System.h> |
aa893047 | 64 | #include <java/lang/VMClassLoader.h> |
ee9dd372 TT |
65 | #include <java/lang/reflect/Modifier.h> |
66 | #include <java/io/PrintStream.h> | |
c93d7fae | 67 | #include <java/lang/UnsatisfiedLinkError.h> |
eeedeb5a | 68 | #include <java/lang/VirtualMachineError.h> |
ef874386 | 69 | #include <gnu/gcj/runtime/ExtensionClassLoader.h> |
eeedeb5a | 70 | #include <gnu/gcj/runtime/FinalizerThread.h> |
36739040 | 71 | #include <execution.h> |
86acf60c DD |
72 | |
73 | #ifdef INTERPRETER | |
b8caf93e KS |
74 | #include <gnu/classpath/jdwp/Jdwp.h> |
75 | #include <gnu/classpath/jdwp/VMVirtualMachine.h> | |
86acf60c DD |
76 | #endif // INTERPRETER |
77 | ||
74fa958e | 78 | #include <gnu/java/lang/MainThread.h> |
ee9dd372 | 79 | |
9096b279 TT |
80 | #ifdef USE_LTDL |
81 | #include <ltdl.h> | |
82 | #endif | |
a4e44caa | 83 | |
36739040 TT |
84 | // Execution engine for compiled code. |
85 | _Jv_CompiledEngine _Jv_soleCompiledEngine; | |
86 | ||
fdafd461 AH |
87 | // Execution engine for code compiled with -findirect-classes |
88 | _Jv_IndirectCompiledEngine _Jv_soleIndirectCompiledEngine; | |
89 | ||
ee9dd372 TT |
90 | // We allocate a single OutOfMemoryError exception which we keep |
91 | // around for use if we run out of memory. | |
92 | static java::lang::OutOfMemoryError *no_memory; | |
93 | ||
bf1b388d RL |
94 | // Number of bytes in largest array object we create. This could be |
95 | // increased to the largest size_t value, so long as the appropriate | |
96 | // functions are changed to take a size_t argument instead of jint. | |
9d5b51ff | 97 | #define MAX_OBJECT_SIZE (((size_t)1<<31) - 1) |
ee9dd372 | 98 | |
b8c3c4f0 | 99 | // Properties set at compile time. |
bc71e4a2 TF |
100 | const char **_Jv_Compiler_Properties = NULL; |
101 | int _Jv_Properties_Count = 0; | |
b8c3c4f0 | 102 | |
ffccc6be AG |
103 | #ifndef DISABLE_GETENV_PROPERTIES |
104 | // Property key/value pairs. | |
105 | property_pair *_Jv_Environment_Properties; | |
106 | #endif | |
283a159f | 107 | |
0acff4bc BM |
108 | // Stash the argv pointer to benefit native libraries that need it. |
109 | const char **_Jv_argv; | |
110 | int _Jv_argc; | |
111 | ||
b8caf93e KS |
112 | // Debugging options |
113 | static bool remoteDebug = false; | |
86acf60c | 114 | #ifdef INTERPRETER |
9d5b51ff AH |
115 | static char defaultJdwpOptions[] = ""; |
116 | static char *jdwpOptions = defaultJdwpOptions; | |
b8caf93e | 117 | |
3fe9aa9e KG |
118 | // Typedefs for JVMTI agent functions. |
119 | typedef jint jvmti_agent_onload_func (JavaVM *vm, char *options, | |
120 | void *reserved); | |
121 | typedef jint jvmti_agent_onunload_func (JavaVM *vm); | |
122 | ||
123 | // JVMTI agent function pointers. | |
124 | static jvmti_agent_onload_func *jvmti_agentonload = NULL; | |
125 | static jvmti_agent_onunload_func *jvmti_agentonunload = NULL; | |
126 | static char *jvmti_agent_opts; | |
86acf60c | 127 | #endif // INTERPRETER |
3fe9aa9e | 128 | |
c4519773 ME |
129 | // Argument support. |
130 | int | |
131 | _Jv_GetNbArgs (void) | |
132 | { | |
133 | // _Jv_argc is 0 if not explicitly initialized. | |
134 | return _Jv_argc; | |
135 | } | |
136 | ||
137 | const char * | |
138 | _Jv_GetSafeArg (int index) | |
139 | { | |
140 | if (index >=0 && index < _Jv_GetNbArgs ()) | |
141 | return _Jv_argv[index]; | |
142 | else | |
143 | return ""; | |
144 | } | |
145 | ||
146 | void | |
147 | _Jv_SetArgs (int argc, const char **argv) | |
148 | { | |
149 | _Jv_argc = argc; | |
150 | _Jv_argv = argv; | |
151 | } | |
152 | ||
54c2f04b AG |
153 | #ifdef ENABLE_JVMPI |
154 | // Pointer to JVMPI notification functions. | |
155 | void (*_Jv_JVMPI_Notify_OBJECT_ALLOC) (JVMPI_Event *event); | |
156 | void (*_Jv_JVMPI_Notify_THREAD_START) (JVMPI_Event *event); | |
157 | void (*_Jv_JVMPI_Notify_THREAD_END) (JVMPI_Event *event); | |
158 | #endif | |
ee9dd372 TT |
159 | \f |
160 | ||
c5fe8107 | 161 | #if defined (HANDLE_SEGV) || defined(HANDLE_FPE) |
2510de8d AH |
162 | /* Unblock a signal. Unless we do this, the signal may only be sent |
163 | once. */ | |
164 | static void | |
c5fe8107 | 165 | unblock_signal (int signum __attribute__ ((__unused__))) |
2510de8d AH |
166 | { |
167 | #ifdef _POSIX_VERSION | |
168 | sigset_t sigs; | |
169 | ||
170 | sigemptyset (&sigs); | |
171 | sigaddset (&sigs, signum); | |
172 | sigprocmask (SIG_UNBLOCK, &sigs, NULL); | |
173 | #endif | |
174 | } | |
c5fe8107 | 175 | #endif |
2510de8d | 176 | |
01f78a02 | 177 | #ifdef HANDLE_SEGV |
01f78a02 AH |
178 | SIGNAL_HANDLER (catch_segv) |
179 | { | |
2510de8d | 180 | unblock_signal (SIGSEGV); |
6c80c45e | 181 | MAKE_THROW_FRAME (nullp); |
18744d9b BM |
182 | java::lang::NullPointerException *nullp |
183 | = new java::lang::NullPointerException; | |
bec3e66d | 184 | throw nullp; |
01f78a02 AH |
185 | } |
186 | #endif | |
187 | ||
d342a2e1 | 188 | #ifdef HANDLE_FPE |
01f78a02 AH |
189 | SIGNAL_HANDLER (catch_fpe) |
190 | { | |
2510de8d | 191 | unblock_signal (SIGFPE); |
554b61bb AH |
192 | #ifdef HANDLE_DIVIDE_OVERFLOW |
193 | HANDLE_DIVIDE_OVERFLOW; | |
194 | #else | |
6c80c45e | 195 | MAKE_THROW_FRAME (arithexception); |
554b61bb | 196 | #endif |
18744d9b BM |
197 | java::lang::ArithmeticException *arithexception |
198 | = new java::lang::ArithmeticException (JvNewStringLatin1 ("/ by zero")); | |
bec3e66d | 199 | throw arithexception; |
01f78a02 AH |
200 | } |
201 | #endif | |
202 | ||
01f78a02 | 203 | |
ee9dd372 | 204 | jboolean |
9dfc2ec2 | 205 | _Jv_equalUtf8Consts (const Utf8Const* a, const Utf8Const *b) |
ee9dd372 | 206 | { |
6c80c45e | 207 | int len; |
9dfc2ec2 | 208 | const _Jv_ushort *aptr, *bptr; |
ee9dd372 TT |
209 | if (a == b) |
210 | return true; | |
211 | if (a->hash != b->hash) | |
212 | return false; | |
213 | len = a->length; | |
214 | if (b->length != len) | |
215 | return false; | |
9dfc2ec2 AH |
216 | aptr = (const _Jv_ushort *)a->data; |
217 | bptr = (const _Jv_ushort *)b->data; | |
ee9dd372 TT |
218 | len = (len + 1) >> 1; |
219 | while (--len >= 0) | |
220 | if (*aptr++ != *bptr++) | |
221 | return false; | |
222 | return true; | |
223 | } | |
224 | ||
225 | /* True iff A is equal to STR. | |
554b61bb | 226 | HASH is STR->hashCode(). |
ee9dd372 TT |
227 | */ |
228 | ||
229 | jboolean | |
230 | _Jv_equal (Utf8Const* a, jstring str, jint hash) | |
231 | { | |
232 | if (a->hash != (_Jv_ushort) hash) | |
233 | return false; | |
234 | jint len = str->length(); | |
235 | jint i = 0; | |
236 | jchar *sptr = _Jv_GetStringChars (str); | |
6c80c45e TT |
237 | unsigned char* ptr = (unsigned char*) a->data; |
238 | unsigned char* limit = ptr + a->length; | |
ee9dd372 | 239 | for (;; i++, sptr++) |
0f918fea TT |
240 | { |
241 | int ch = UTF8_GET (ptr, limit); | |
242 | if (i == len) | |
243 | return ch < 0; | |
244 | if (ch != *sptr) | |
245 | return false; | |
246 | } | |
247 | return true; | |
248 | } | |
249 | ||
250 | /* Like _Jv_equal, but stop after N characters. */ | |
251 | jboolean | |
252 | _Jv_equaln (Utf8Const *a, jstring str, jint n) | |
253 | { | |
254 | jint len = str->length(); | |
255 | jint i = 0; | |
256 | jchar *sptr = _Jv_GetStringChars (str); | |
6c80c45e TT |
257 | unsigned char* ptr = (unsigned char*) a->data; |
258 | unsigned char* limit = ptr + a->length; | |
0f918fea | 259 | for (; n-- > 0; i++, sptr++) |
ee9dd372 TT |
260 | { |
261 | int ch = UTF8_GET (ptr, limit); | |
262 | if (i == len) | |
263 | return ch < 0; | |
264 | if (ch != *sptr) | |
265 | return false; | |
266 | } | |
267 | return true; | |
268 | } | |
269 | ||
c1a9321f RS |
270 | // Determines whether the given Utf8Const object contains |
271 | // a type which is primitive or some derived form of it, eg. | |
272 | // an array or multi-dimensional array variant. | |
273 | jboolean | |
274 | _Jv_isPrimitiveOrDerived(const Utf8Const *a) | |
275 | { | |
276 | unsigned char *aptr = (unsigned char *) a->data; | |
277 | unsigned char *alimit = aptr + a->length; | |
278 | int ac = UTF8_GET(aptr, alimit); | |
279 | ||
280 | // Skips any leading array marks. | |
281 | while (ac == '[') | |
282 | ac = UTF8_GET(aptr, alimit); | |
283 | ||
284 | // There should not be another character. This implies that | |
285 | // the type name is only one character long. | |
286 | if (UTF8_GET(aptr, alimit) == -1) | |
287 | switch ( ac ) | |
288 | { | |
289 | case 'Z': | |
290 | case 'B': | |
291 | case 'C': | |
292 | case 'S': | |
293 | case 'I': | |
294 | case 'J': | |
295 | case 'F': | |
296 | case 'D': | |
297 | return true; | |
298 | default: | |
299 | break; | |
300 | } | |
301 | ||
302 | return false; | |
303 | } | |
304 | ||
305 | // Find out whether two _Jv_Utf8Const candidates contain the same | |
306 | // classname. | |
307 | // The method is written to handle the different formats of classnames. | |
308 | // Eg. "Ljava/lang/Class;", "Ljava.lang.Class;", "java/lang/Class" and | |
309 | // "java.lang.Class" will be seen as equal. | |
310 | // Warning: This function is not smart enough to declare "Z" and "boolean" | |
311 | // and similar cases as equal (and is not meant to be used this way)! | |
312 | jboolean | |
313 | _Jv_equalUtf8Classnames (const Utf8Const *a, const Utf8Const *b) | |
314 | { | |
315 | // If the class name's length differs by two characters | |
316 | // it is possible that we have candidates which are given | |
317 | // in the two different formats ("Lp1/p2/cn;" vs. "p1/p2/cn") | |
318 | switch (a->length - b->length) | |
319 | { | |
320 | case -2: | |
321 | case 0: | |
322 | case 2: | |
323 | break; | |
324 | default: | |
325 | return false; | |
326 | } | |
327 | ||
328 | unsigned char *aptr = (unsigned char *) a->data; | |
329 | unsigned char *alimit = aptr + a->length; | |
330 | unsigned char *bptr = (unsigned char *) b->data; | |
331 | unsigned char *blimit = bptr + b->length; | |
332 | ||
333 | if (alimit[-1] == ';') | |
334 | alimit--; | |
335 | ||
336 | if (blimit[-1] == ';') | |
337 | blimit--; | |
338 | ||
339 | int ac = UTF8_GET(aptr, alimit); | |
340 | int bc = UTF8_GET(bptr, blimit); | |
341 | ||
342 | // Checks whether both strings have the same amount of leading [ characters. | |
343 | while (ac == '[') | |
344 | { | |
345 | if (bc == '[') | |
346 | { | |
347 | ac = UTF8_GET(aptr, alimit); | |
348 | bc = UTF8_GET(bptr, blimit); | |
349 | continue; | |
350 | } | |
351 | ||
352 | return false; | |
353 | } | |
354 | ||
355 | // Skips leading L character. | |
356 | if (ac == 'L') | |
357 | ac = UTF8_GET(aptr, alimit); | |
358 | ||
359 | if (bc == 'L') | |
360 | bc = UTF8_GET(bptr, blimit); | |
361 | ||
362 | // Compares the remaining characters. | |
363 | while (ac != -1 && bc != -1) | |
364 | { | |
365 | // Replaces package separating dots with slashes. | |
366 | if (ac == '.') | |
367 | ac = '/'; | |
368 | ||
369 | if (bc == '.') | |
370 | bc = '/'; | |
371 | ||
372 | // Now classnames differ if there is at least one non-matching | |
373 | // character. | |
374 | if (ac != bc) | |
375 | return false; | |
376 | ||
377 | ac = UTF8_GET(aptr, alimit); | |
378 | bc = UTF8_GET(bptr, blimit); | |
379 | } | |
380 | ||
381 | return (ac == bc); | |
382 | } | |
383 | ||
ee9dd372 TT |
384 | /* Count the number of Unicode chars encoded in a given Ut8 string. */ |
385 | int | |
2cf94e58 | 386 | _Jv_strLengthUtf8(const char* str, int len) |
ee9dd372 | 387 | { |
6c80c45e TT |
388 | unsigned char* ptr; |
389 | unsigned char* limit; | |
ee9dd372 TT |
390 | int str_length; |
391 | ||
392 | ptr = (unsigned char*) str; | |
393 | limit = ptr + len; | |
394 | str_length = 0; | |
3610e0d5 TT |
395 | for (; ptr < limit; str_length++) |
396 | { | |
397 | if (UTF8_GET (ptr, limit) < 0) | |
398 | return (-1); | |
ee9dd372 | 399 | } |
ee9dd372 TT |
400 | return (str_length); |
401 | } | |
402 | ||
403 | /* Calculate a hash value for a string encoded in Utf8 format. | |
404 | * This returns the same hash value as specified or java.lang.String.hashCode. | |
405 | */ | |
b4d49f49 | 406 | jint |
2cf94e58 | 407 | _Jv_hashUtf8String (const char* str, int len) |
ee9dd372 | 408 | { |
6c80c45e TT |
409 | unsigned char* ptr = (unsigned char*) str; |
410 | unsigned char* limit = ptr + len; | |
ee9dd372 TT |
411 | jint hash = 0; |
412 | ||
413 | for (; ptr < limit;) | |
414 | { | |
415 | int ch = UTF8_GET (ptr, limit); | |
416 | /* Updated specification from | |
417 | http://www.javasoft.com/docs/books/jls/clarify.html. */ | |
418 | hash = (31 * hash) + ch; | |
419 | } | |
420 | return hash; | |
421 | } | |
422 | ||
b4d49f49 | 423 | void |
2cf94e58 | 424 | _Jv_Utf8Const::init(const char *s, int len) |
b4d49f49 PB |
425 | { |
426 | ::memcpy (data, s, len); | |
427 | data[len] = 0; | |
428 | length = len; | |
429 | hash = _Jv_hashUtf8String (s, len) & 0xFFFF; | |
430 | } | |
431 | ||
ee9dd372 | 432 | _Jv_Utf8Const * |
2cf94e58 | 433 | _Jv_makeUtf8Const (const char* s, int len) |
ee9dd372 TT |
434 | { |
435 | if (len < 0) | |
436 | len = strlen (s); | |
b4d49f49 PB |
437 | Utf8Const* m |
438 | = (Utf8Const*) _Jv_AllocBytes (_Jv_Utf8Const::space_needed(s, len)); | |
439 | m->init(s, len); | |
440 | return m; | |
ee9dd372 TT |
441 | } |
442 | ||
58eb6e7c AG |
443 | _Jv_Utf8Const * |
444 | _Jv_makeUtf8Const (jstring string) | |
445 | { | |
446 | jint hash = string->hashCode (); | |
447 | jint len = _Jv_GetStringUTFLength (string); | |
448 | ||
449 | Utf8Const* m = (Utf8Const*) | |
3610e0d5 | 450 | _Jv_AllocBytes (sizeof(Utf8Const) + len + 1); |
58eb6e7c AG |
451 | |
452 | m->hash = hash; | |
453 | m->length = len; | |
454 | ||
455 | _Jv_GetStringUTFRegion (string, 0, string->length (), m->data); | |
456 | m->data[len] = 0; | |
457 | ||
458 | return m; | |
459 | } | |
460 | ||
ee9dd372 TT |
461 | \f |
462 | ||
903db435 | 463 | #ifdef __GCJ_DEBUG |
ee9dd372 TT |
464 | void |
465 | _Jv_Abort (const char *function, const char *file, int line, | |
466 | const char *message) | |
467 | #else | |
468 | void | |
469 | _Jv_Abort (const char *, const char *, int, const char *message) | |
470 | #endif | |
471 | { | |
903db435 | 472 | #ifdef __GCJ_DEBUG |
ee9dd372 TT |
473 | fprintf (stderr, |
474 | "libgcj failure: %s\n in function %s, file %s, line %d\n", | |
475 | message, function, file, line); | |
476 | #else | |
afb2dec5 | 477 | fprintf (stderr, "libgcj failure: %s\n", message); |
ee9dd372 | 478 | #endif |
5df33252 | 479 | fflush (stderr); |
ee9dd372 TT |
480 | abort (); |
481 | } | |
482 | ||
483 | static void | |
484 | fail_on_finalization (jobject) | |
485 | { | |
486 | JvFail ("object was finalized"); | |
487 | } | |
488 | ||
489 | void | |
490 | _Jv_GCWatch (jobject obj) | |
491 | { | |
492 | _Jv_RegisterFinalizer (obj, fail_on_finalization); | |
493 | } | |
494 | ||
495 | void | |
496 | _Jv_ThrowBadArrayIndex(jint bad_index) | |
497 | { | |
b3208f56 RH |
498 | throw new java::lang::ArrayIndexOutOfBoundsException |
499 | (java::lang::String::valueOf (bad_index)); | |
ee9dd372 TT |
500 | } |
501 | ||
40f4ae32 TT |
502 | void |
503 | _Jv_ThrowNullPointerException () | |
504 | { | |
b3208f56 | 505 | throw new java::lang::NullPointerException; |
40f4ae32 TT |
506 | } |
507 | ||
f3dc41fe AH |
508 | // Resolve an entry in the constant pool and return the target |
509 | // address. | |
510 | void * | |
511 | _Jv_ResolvePoolEntry (jclass this_class, jint index) | |
512 | { | |
513 | _Jv_Constants *pool = &this_class->constants; | |
514 | ||
515 | if ((pool->tags[index] & JV_CONSTANT_ResolvedFlag) != 0) | |
516 | return pool->data[index].field->u.addr; | |
517 | ||
518 | JvSynchronize sync (this_class); | |
519 | return (_Jv_Linker::resolve_pool_entry (this_class, index)) | |
520 | .field->u.addr; | |
521 | } | |
522 | ||
523 | ||
3610e0d5 TT |
524 | // Explicitly throw a no memory exception. |
525 | // The collector calls this when it encounters an out-of-memory condition. | |
526 | void _Jv_ThrowNoMemory() | |
ee9dd372 | 527 | { |
938f3777 | 528 | throw no_memory; |
ee9dd372 TT |
529 | } |
530 | ||
54c2f04b | 531 | #ifdef ENABLE_JVMPI |
8ba14152 BM |
532 | # define JVMPI_NOTIFY_ALLOC(klass,size,obj) \ |
533 | if (__builtin_expect (_Jv_JVMPI_Notify_OBJECT_ALLOC != 0, false)) \ | |
534 | jvmpi_notify_alloc(klass,size,obj); | |
938f3777 HB |
535 | static void |
536 | jvmpi_notify_alloc(jclass klass, jint size, jobject obj) | |
537 | { | |
538 | // Service JVMPI allocation request. | |
8ba14152 BM |
539 | JVMPI_Event event; |
540 | ||
541 | event.event_type = JVMPI_EVENT_OBJECT_ALLOC; | |
542 | event.env_id = NULL; | |
543 | event.u.obj_alloc.arena_id = 0; | |
544 | event.u.obj_alloc.class_id = (jobjectID) klass; | |
545 | event.u.obj_alloc.is_array = 0; | |
546 | event.u.obj_alloc.size = size; | |
547 | event.u.obj_alloc.obj_id = (jobjectID) obj; | |
548 | ||
549 | // FIXME: This doesn't look right for the Boehm GC. A GC may | |
550 | // already be in progress. _Jv_DisableGC () doesn't wait for it. | |
551 | // More importantly, I don't see the need for disabling GC, since we | |
552 | // blatantly have a pointer to obj on our stack, ensuring that the | |
553 | // object can't be collected. Even for a nonconservative collector, | |
554 | // it appears to me that this must be true, since we are about to | |
555 | // return obj. Isn't this whole approach way too intrusive for | |
556 | // a useful profiling interface? - HB | |
557 | _Jv_DisableGC (); | |
558 | (*_Jv_JVMPI_Notify_OBJECT_ALLOC) (&event); | |
559 | _Jv_EnableGC (); | |
938f3777 HB |
560 | } |
561 | #else /* !ENABLE_JVMPI */ | |
8ba14152 | 562 | # define JVMPI_NOTIFY_ALLOC(klass,size,obj) /* do nothing */ |
54c2f04b AG |
563 | #endif |
564 | ||
245c3c04 | 565 | // Allocate a new object of class KLASS. |
938f3777 HB |
566 | // First a version that assumes that we have no finalizer, and that |
567 | // the class is already initialized. | |
568 | // If we know that JVMPI is disabled, this can be replaced by a direct call | |
569 | // to the allocator for the appropriate GC. | |
570 | jobject | |
245c3c04 | 571 | _Jv_AllocObjectNoInitNoFinalizer (jclass klass) |
938f3777 | 572 | { |
245c3c04 | 573 | jint size = klass->size (); |
938f3777 | 574 | jobject obj = (jobject) _Jv_AllocObj (size, klass); |
8ba14152 | 575 | JVMPI_NOTIFY_ALLOC (klass, size, obj); |
938f3777 HB |
576 | return obj; |
577 | } | |
578 | ||
579 | // And now a version that initializes if necessary. | |
580 | jobject | |
245c3c04 | 581 | _Jv_AllocObjectNoFinalizer (jclass klass) |
938f3777 | 582 | { |
c1a9321f RS |
583 | if (_Jv_IsPhantomClass(klass) ) |
584 | throw new java::lang::NoClassDefFoundError(klass->getName()); | |
585 | ||
938f3777 | 586 | _Jv_InitClass (klass); |
245c3c04 | 587 | jint size = klass->size (); |
938f3777 | 588 | jobject obj = (jobject) _Jv_AllocObj (size, klass); |
8ba14152 | 589 | JVMPI_NOTIFY_ALLOC (klass, size, obj); |
938f3777 HB |
590 | return obj; |
591 | } | |
592 | ||
593 | // And now the general version that registers a finalizer if necessary. | |
594 | jobject | |
245c3c04 | 595 | _Jv_AllocObject (jclass klass) |
938f3777 | 596 | { |
245c3c04 BM |
597 | jobject obj = _Jv_AllocObjectNoFinalizer (klass); |
598 | ||
938f3777 HB |
599 | // We assume that the compiler only generates calls to this routine |
600 | // if there really is an interesting finalizer. | |
601 | // Unfortunately, we still have to the dynamic test, since there may | |
602 | // be cni calls to this routine. | |
76508852 | 603 | // Note that on IA64 get_finalizer() returns the starting address of the |
938f3777 HB |
604 | // function, not a function pointer. Thus this still works. |
605 | if (klass->vtable->get_finalizer () | |
606 | != java::lang::Object::class$.vtable->get_finalizer ()) | |
607 | _Jv_RegisterFinalizer (obj, _Jv_FinalizeObject); | |
ee9dd372 TT |
608 | return obj; |
609 | } | |
610 | ||
245c3c04 BM |
611 | // Allocate a String, including variable length storage. |
612 | jstring | |
613 | _Jv_AllocString(jsize len) | |
614 | { | |
615 | using namespace java::lang; | |
616 | ||
617 | jsize sz = sizeof(java::lang::String) + len * sizeof(jchar); | |
618 | ||
619 | // We assert that for strings allocated this way, the data field | |
620 | // will always point to the object itself. Thus there is no reason | |
621 | // for the garbage collector to scan any of it. | |
622 | // Furthermore, we're about to overwrite the string data, so | |
623 | // initialization of the object is not an issue. | |
624 | ||
625 | // String needs no initialization, and there is no finalizer, so | |
626 | // we can go directly to the collector's allocator interface. | |
627 | jstring obj = (jstring) _Jv_AllocPtrFreeObj(sz, &String::class$); | |
628 | ||
629 | obj->data = obj; | |
630 | obj->boffset = sizeof(java::lang::String); | |
631 | obj->count = len; | |
632 | obj->cachedHashCode = 0; | |
245c3c04 | 633 | |
8ba14152 | 634 | JVMPI_NOTIFY_ALLOC (&String::class$, sz, obj); |
245c3c04 BM |
635 | |
636 | return obj; | |
637 | } | |
638 | ||
3610e0d5 TT |
639 | // A version of the above that assumes the object contains no pointers, |
640 | // and requires no finalization. This can't happen if we need pointers | |
641 | // to locks. | |
642 | #ifdef JV_HASH_SYNCHRONIZATION | |
643 | jobject | |
245c3c04 | 644 | _Jv_AllocPtrFreeObject (jclass klass) |
3610e0d5 TT |
645 | { |
646 | _Jv_InitClass (klass); | |
245c3c04 | 647 | jint size = klass->size (); |
3610e0d5 TT |
648 | |
649 | jobject obj = (jobject) _Jv_AllocPtrFreeObj (size, klass); | |
650 | ||
8ba14152 | 651 | JVMPI_NOTIFY_ALLOC (klass, size, obj); |
3610e0d5 TT |
652 | |
653 | return obj; | |
654 | } | |
655 | #endif /* JV_HASH_SYNCHRONIZATION */ | |
656 | ||
657 | ||
ee9dd372 TT |
658 | // Allocate a new array of Java objects. Each object is of type |
659 | // `elementClass'. `init' is used to initialize each slot in the | |
660 | // array. | |
661 | jobjectArray | |
662 | _Jv_NewObjectArray (jsize count, jclass elementClass, jobject init) | |
663 | { | |
c1a9321f RS |
664 | // Creating an array of an unresolved type is impossible. So we throw |
665 | // the NoClassDefFoundError. | |
666 | if ( _Jv_IsPhantomClass(elementClass) ) | |
667 | throw new java::lang::NoClassDefFoundError(elementClass->getName()); | |
668 | ||
9d4c2148 | 669 | if (__builtin_expect (count < 0, false)) |
b3208f56 | 670 | throw new java::lang::NegativeArraySizeException; |
ee9dd372 | 671 | |
93d45562 TT |
672 | JvAssert (! elementClass->isPrimitive ()); |
673 | ||
5bb11b2e | 674 | // Ensure that elements pointer is properly aligned. |
93d45562 | 675 | jobjectArray obj = NULL; |
5bb11b2e | 676 | size_t size = (size_t) elements (obj); |
bf1b388d RL |
677 | // Check for overflow. |
678 | if (__builtin_expect ((size_t) count > | |
679 | (MAX_OBJECT_SIZE - 1 - size) / sizeof (jobject), false)) | |
680 | throw no_memory; | |
681 | ||
93d45562 | 682 | size += count * sizeof (jobject); |
58eb6e7c | 683 | |
421f9e60 AH |
684 | jclass klass = _Jv_GetArrayClass (elementClass, |
685 | elementClass->getClassLoaderInternal()); | |
58eb6e7c | 686 | |
bf3b8e42 | 687 | obj = (jobjectArray) _Jv_AllocArray (size, klass); |
2721806e TT |
688 | // Cast away const. |
689 | jsize *lp = const_cast<jsize *> (&obj->length); | |
690 | *lp = count; | |
ee9dd372 TT |
691 | // We know the allocator returns zeroed memory. So don't bother |
692 | // zeroing it again. | |
693 | if (init) | |
694 | { | |
5bb11b2e | 695 | jobject *ptr = elements(obj); |
ee9dd372 TT |
696 | while (--count >= 0) |
697 | *ptr++ = init; | |
698 | } | |
ee9dd372 TT |
699 | return obj; |
700 | } | |
701 | ||
702 | // Allocate a new array of primitives. ELTYPE is the type of the | |
703 | // element, COUNT is the size of the array. | |
704 | jobject | |
705 | _Jv_NewPrimArray (jclass eltype, jint count) | |
706 | { | |
707 | int elsize = eltype->size(); | |
9d4c2148 | 708 | if (__builtin_expect (count < 0, false)) |
b3208f56 | 709 | throw new java::lang::NegativeArraySizeException; |
ee9dd372 | 710 | |
93d45562 TT |
711 | JvAssert (eltype->isPrimitive ()); |
712 | jobject dummy = NULL; | |
713 | size_t size = (size_t) _Jv_GetArrayElementFromElementType (dummy, eltype); | |
714 | ||
ee9dd372 | 715 | // Check for overflow. |
1143c0a0 | 716 | if (__builtin_expect ((size_t) count > |
bf1b388d | 717 | (MAX_OBJECT_SIZE - size) / elsize, false)) |
b3208f56 | 718 | throw no_memory; |
ee9dd372 | 719 | |
5bb11b2e | 720 | jclass klass = _Jv_GetArrayClass (eltype, 0); |
bf3b8e42 | 721 | |
3610e0d5 TT |
722 | # ifdef JV_HASH_SYNCHRONIZATION |
723 | // Since the vtable is always statically allocated, | |
724 | // these are completely pointerfree! Make sure the GC doesn't touch them. | |
725 | __JArray *arr = | |
726 | (__JArray*) _Jv_AllocPtrFreeObj (size + elsize * count, klass); | |
727 | memset((char *)arr + size, 0, elsize * count); | |
728 | # else | |
bf3b8e42 | 729 | __JArray *arr = (__JArray*) _Jv_AllocObj (size + elsize * count, klass); |
3610e0d5 TT |
730 | // Note that we assume we are given zeroed memory by the allocator. |
731 | # endif | |
2721806e TT |
732 | // Cast away const. |
733 | jsize *lp = const_cast<jsize *> (&arr->length); | |
734 | *lp = count; | |
ee9dd372 | 735 | |
ee9dd372 TT |
736 | return arr; |
737 | } | |
738 | ||
ee9dd372 TT |
739 | jobject |
740 | _Jv_NewArray (jint type, jint size) | |
741 | { | |
742 | switch (type) | |
743 | { | |
744 | case 4: return JvNewBooleanArray (size); | |
745 | case 5: return JvNewCharArray (size); | |
746 | case 6: return JvNewFloatArray (size); | |
747 | case 7: return JvNewDoubleArray (size); | |
748 | case 8: return JvNewByteArray (size); | |
749 | case 9: return JvNewShortArray (size); | |
750 | case 10: return JvNewIntArray (size); | |
751 | case 11: return JvNewLongArray (size); | |
752 | } | |
68940f3f TT |
753 | throw new java::lang::InternalError |
754 | (JvNewStringLatin1 ("invalid type code in _Jv_NewArray")); | |
ee9dd372 TT |
755 | } |
756 | ||
62a04081 TT |
757 | // Allocate a possibly multi-dimensional array but don't check that |
758 | // any array length is <0. | |
759 | static jobject | |
760 | _Jv_NewMultiArrayUnchecked (jclass type, jint dimensions, jint *sizes) | |
ee9dd372 TT |
761 | { |
762 | JvAssert (type->isArray()); | |
763 | jclass element_type = type->getComponentType(); | |
764 | jobject result; | |
765 | if (element_type->isPrimitive()) | |
766 | result = _Jv_NewPrimArray (element_type, sizes[0]); | |
767 | else | |
768 | result = _Jv_NewObjectArray (sizes[0], element_type, NULL); | |
769 | ||
770 | if (dimensions > 1) | |
771 | { | |
772 | JvAssert (! element_type->isPrimitive()); | |
773 | JvAssert (element_type->isArray()); | |
774 | jobject *contents = elements ((jobjectArray) result); | |
775 | for (int i = 0; i < sizes[0]; ++i) | |
62a04081 TT |
776 | contents[i] = _Jv_NewMultiArrayUnchecked (element_type, dimensions - 1, |
777 | sizes + 1); | |
ee9dd372 TT |
778 | } |
779 | ||
780 | return result; | |
781 | } | |
782 | ||
62a04081 TT |
783 | jobject |
784 | _Jv_NewMultiArray (jclass type, jint dimensions, jint *sizes) | |
785 | { | |
786 | for (int i = 0; i < dimensions; ++i) | |
787 | if (sizes[i] < 0) | |
788 | throw new java::lang::NegativeArraySizeException; | |
789 | ||
790 | return _Jv_NewMultiArrayUnchecked (type, dimensions, sizes); | |
791 | } | |
792 | ||
ee9dd372 TT |
793 | jobject |
794 | _Jv_NewMultiArray (jclass array_type, jint dimensions, ...) | |
795 | { | |
b2ed63b4 AH |
796 | // Creating an array of an unresolved type is impossible. So we throw |
797 | // the NoClassDefFoundError. | |
798 | if (_Jv_IsPhantomClass(array_type)) | |
799 | throw new java::lang::NoClassDefFoundError(array_type->getName()); | |
800 | ||
ee9dd372 TT |
801 | va_list args; |
802 | jint sizes[dimensions]; | |
803 | va_start (args, dimensions); | |
804 | for (int i = 0; i < dimensions; ++i) | |
805 | { | |
806 | jint size = va_arg (args, jint); | |
62a04081 TT |
807 | if (size < 0) |
808 | throw new java::lang::NegativeArraySizeException; | |
ee9dd372 TT |
809 | sizes[i] = size; |
810 | } | |
811 | va_end (args); | |
812 | ||
62a04081 | 813 | return _Jv_NewMultiArrayUnchecked (array_type, dimensions, sizes); |
ee9dd372 TT |
814 | } |
815 | ||
816 | \f | |
817 | ||
45597167 | 818 | // Ensure 8-byte alignment, for hash synchronization. |
107abb2f | 819 | #define DECLARE_PRIM_TYPE(NAME) \ |
45597167 | 820 | java::lang::Class _Jv_##NAME##Class __attribute__ ((aligned (8))); |
107abb2f | 821 | |
dfe5a36e MM |
822 | DECLARE_PRIM_TYPE(byte) |
823 | DECLARE_PRIM_TYPE(short) | |
824 | DECLARE_PRIM_TYPE(int) | |
825 | DECLARE_PRIM_TYPE(long) | |
826 | DECLARE_PRIM_TYPE(boolean) | |
827 | DECLARE_PRIM_TYPE(char) | |
828 | DECLARE_PRIM_TYPE(float) | |
829 | DECLARE_PRIM_TYPE(double) | |
830 | DECLARE_PRIM_TYPE(void) | |
107abb2f BM |
831 | |
832 | void | |
2cf94e58 | 833 | _Jv_InitPrimClass (jclass cl, const char *cname, char sig, int len) |
107abb2f BM |
834 | { |
835 | using namespace java::lang::reflect; | |
836 | ||
68940f3f TT |
837 | // We must set the vtable for the class; the Java constructor |
838 | // doesn't do this. | |
839 | (*(_Jv_VTable **) cl) = java::lang::Class::class$.vtable; | |
840 | ||
841 | // Initialize the fields we care about. We do this in the same | |
842 | // order they are declared in Class.h. | |
107abb2f BM |
843 | cl->name = _Jv_makeUtf8Const ((char *) cname, -1); |
844 | cl->accflags = Modifier::PUBLIC | Modifier::FINAL | Modifier::ABSTRACT; | |
845 | cl->method_count = sig; | |
846 | cl->size_in_bytes = len; | |
847 | cl->vtable = JV_PRIMITIVE_VTABLE; | |
848 | cl->state = JV_STATE_DONE; | |
849 | cl->depth = -1; | |
107abb2f | 850 | } |
ee9dd372 TT |
851 | |
852 | jclass | |
8b6e7690 TT |
853 | _Jv_FindClassFromSignature (char *sig, java::lang::ClassLoader *loader, |
854 | char **endp) | |
ee9dd372 | 855 | { |
8b6e7690 TT |
856 | // First count arrays. |
857 | int array_count = 0; | |
858 | while (*sig == '[') | |
859 | { | |
860 | ++sig; | |
861 | ++array_count; | |
862 | } | |
863 | ||
864 | jclass result = NULL; | |
ee9dd372 TT |
865 | switch (*sig) |
866 | { | |
867 | case 'B': | |
8b6e7690 TT |
868 | result = JvPrimClass (byte); |
869 | break; | |
ee9dd372 | 870 | case 'S': |
8b6e7690 TT |
871 | result = JvPrimClass (short); |
872 | break; | |
ee9dd372 | 873 | case 'I': |
8b6e7690 TT |
874 | result = JvPrimClass (int); |
875 | break; | |
ee9dd372 | 876 | case 'J': |
8b6e7690 TT |
877 | result = JvPrimClass (long); |
878 | break; | |
ee9dd372 | 879 | case 'Z': |
8b6e7690 TT |
880 | result = JvPrimClass (boolean); |
881 | break; | |
ee9dd372 | 882 | case 'C': |
8b6e7690 TT |
883 | result = JvPrimClass (char); |
884 | break; | |
ee9dd372 | 885 | case 'F': |
8b6e7690 TT |
886 | result = JvPrimClass (float); |
887 | break; | |
ee9dd372 | 888 | case 'D': |
8b6e7690 TT |
889 | result = JvPrimClass (double); |
890 | break; | |
ee9dd372 | 891 | case 'V': |
8b6e7690 TT |
892 | result = JvPrimClass (void); |
893 | break; | |
ee9dd372 TT |
894 | case 'L': |
895 | { | |
8b6e7690 TT |
896 | char *save = ++sig; |
897 | while (*sig && *sig != ';') | |
898 | ++sig; | |
899 | // Do nothing if signature appears to be malformed. | |
900 | if (*sig == ';') | |
901 | { | |
902 | _Jv_Utf8Const *name = _Jv_makeUtf8Const (save, sig - save); | |
903 | result = _Jv_FindClass (name, loader); | |
904 | } | |
905 | break; | |
b64295c4 | 906 | } |
8b6e7690 TT |
907 | default: |
908 | // Do nothing -- bad signature. | |
909 | break; | |
ee9dd372 | 910 | } |
b64295c4 | 911 | |
8b6e7690 TT |
912 | if (endp) |
913 | { | |
914 | // Not really the "end", but the last valid character that we | |
915 | // looked at. | |
916 | *endp = sig; | |
917 | } | |
918 | ||
919 | if (! result) | |
920 | return NULL; | |
921 | ||
922 | // Find arrays. | |
923 | while (array_count-- > 0) | |
924 | result = _Jv_GetArrayClass (result, loader); | |
925 | return result; | |
ee9dd372 TT |
926 | } |
927 | ||
c1a9321f RS |
928 | |
929 | jclass | |
930 | _Jv_FindClassFromSignatureNoException (char *sig, java::lang::ClassLoader *loader, | |
931 | char **endp) | |
932 | { | |
933 | jclass klass; | |
934 | ||
935 | try | |
936 | { | |
937 | klass = _Jv_FindClassFromSignature(sig, loader, endp); | |
938 | } | |
939 | catch (java::lang::NoClassDefFoundError *ncdfe) | |
940 | { | |
941 | return NULL; | |
942 | } | |
943 | catch (java::lang::ClassNotFoundException *cnfe) | |
944 | { | |
945 | return NULL; | |
946 | } | |
947 | ||
948 | return klass; | |
949 | } | |
ee9dd372 TT |
950 | |
951 | JArray<jstring> * | |
952 | JvConvertArgv (int argc, const char **argv) | |
953 | { | |
954 | if (argc < 0) | |
955 | argc = 0; | |
36739040 | 956 | jobjectArray ar = JvNewObjectArray(argc, &java::lang::String::class$, NULL); |
1ca1c91b TT |
957 | jobject *ptr = elements(ar); |
958 | jbyteArray bytes = NULL; | |
ee9dd372 TT |
959 | for (int i = 0; i < argc; i++) |
960 | { | |
961 | const char *arg = argv[i]; | |
1ca1c91b TT |
962 | int len = strlen (arg); |
963 | if (bytes == NULL || bytes->length < len) | |
964 | bytes = JvNewByteArray (len); | |
965 | jbyte *bytePtr = elements (bytes); | |
966 | // We assume jbyte == char. | |
967 | memcpy (bytePtr, arg, len); | |
968 | ||
969 | // Now convert using the default encoding. | |
970 | *ptr++ = new java::lang::String (bytes, 0, len); | |
ee9dd372 TT |
971 | } |
972 | return (JArray<jstring>*) ar; | |
973 | } | |
974 | ||
975 | // FIXME: These variables are static so that they will be | |
976 | // automatically scanned by the Boehm collector. This is needed | |
977 | // because with qthreads the collector won't scan the initial stack -- | |
978 | // it will only scan the qthreads stacks. | |
979 | ||
980 | // Command line arguments. | |
2dc55bc9 | 981 | static JArray<jstring> *arg_vec; |
ee9dd372 | 982 | |
ee9dd372 TT |
983 | // The primary thread. |
984 | static java::lang::Thread *main_thread; | |
985 | ||
ffccc6be AG |
986 | #ifndef DISABLE_GETENV_PROPERTIES |
987 | ||
988 | static char * | |
989 | next_property_key (char *s, size_t *length) | |
990 | { | |
991 | size_t l = 0; | |
992 | ||
993 | JvAssert (s); | |
994 | ||
995 | // Skip over whitespace | |
996 | while (isspace (*s)) | |
997 | s++; | |
998 | ||
999 | // If we've reached the end, return NULL. Also return NULL if for | |
1000 | // some reason we've come across a malformed property string. | |
1001 | if (*s == 0 | |
1002 | || *s == ':' | |
1003 | || *s == '=') | |
1004 | return NULL; | |
1005 | ||
1006 | // Determine the length of the property key. | |
1007 | while (s[l] != 0 | |
1008 | && ! isspace (s[l]) | |
1009 | && s[l] != ':' | |
1010 | && s[l] != '=') | |
1011 | { | |
1012 | if (s[l] == '\\' | |
1013 | && s[l+1] != 0) | |
1014 | l++; | |
1015 | l++; | |
1016 | } | |
1017 | ||
1018 | *length = l; | |
1019 | ||
1020 | return s; | |
1021 | } | |
1022 | ||
1023 | static char * | |
1024 | next_property_value (char *s, size_t *length) | |
1025 | { | |
1026 | size_t l = 0; | |
1027 | ||
1028 | JvAssert (s); | |
1029 | ||
1030 | while (isspace (*s)) | |
1031 | s++; | |
1032 | ||
1033 | if (*s == ':' | |
1034 | || *s == '=') | |
1035 | s++; | |
1036 | ||
1037 | while (isspace (*s)) | |
1038 | s++; | |
1039 | ||
ffccc6be AG |
1040 | // Determine the length of the property value. |
1041 | while (s[l] != 0 | |
1042 | && ! isspace (s[l]) | |
1043 | && s[l] != ':' | |
1044 | && s[l] != '=') | |
1045 | { | |
1046 | if (s[l] == '\\' | |
1047 | && s[l+1] != 0) | |
1048 | l += 2; | |
1049 | else | |
1050 | l++; | |
1051 | } | |
1052 | ||
1053 | *length = l; | |
1054 | ||
1055 | return s; | |
1056 | } | |
1057 | ||
1058 | static void | |
1059 | process_gcj_properties () | |
1060 | { | |
1061 | char *props = getenv("GCJ_PROPERTIES"); | |
ffccc6be AG |
1062 | |
1063 | if (NULL == props) | |
1064 | return; | |
1065 | ||
38fd6679 AS |
1066 | // Later on we will write \0s into this string. It is simplest to |
1067 | // just duplicate it here. | |
1068 | props = strdup (props); | |
1069 | ||
1070 | char *p = props; | |
1071 | size_t length; | |
1072 | size_t property_count = 0; | |
1073 | ||
ffccc6be AG |
1074 | // Whip through props quickly in order to count the number of |
1075 | // property values. | |
1076 | while (p && (p = next_property_key (p, &length))) | |
1077 | { | |
1078 | // Skip to the end of the key | |
1079 | p += length; | |
1080 | ||
1081 | p = next_property_value (p, &length); | |
1082 | if (p) | |
1083 | p += length; | |
1084 | ||
1085 | property_count++; | |
1086 | } | |
1087 | ||
1088 | // Allocate an array of property value/key pairs. | |
1089 | _Jv_Environment_Properties = | |
1090 | (property_pair *) malloc (sizeof(property_pair) | |
1091 | * (property_count + 1)); | |
1092 | ||
1093 | // Go through the properties again, initializing _Jv_Properties | |
1094 | // along the way. | |
1095 | p = props; | |
1096 | property_count = 0; | |
1097 | while (p && (p = next_property_key (p, &length))) | |
1098 | { | |
1099 | _Jv_Environment_Properties[property_count].key = p; | |
1100 | _Jv_Environment_Properties[property_count].key_length = length; | |
1101 | ||
1102 | // Skip to the end of the key | |
1103 | p += length; | |
1104 | ||
1105 | p = next_property_value (p, &length); | |
1106 | ||
1107 | _Jv_Environment_Properties[property_count].value = p; | |
1108 | _Jv_Environment_Properties[property_count].value_length = length; | |
1109 | ||
1110 | if (p) | |
1111 | p += length; | |
1112 | ||
1113 | property_count++; | |
1114 | } | |
1115 | memset ((void *) &_Jv_Environment_Properties[property_count], | |
1116 | 0, sizeof (property_pair)); | |
ffccc6be | 1117 | |
08bc8777 PB |
1118 | // Null terminate the strings. |
1119 | for (property_pair *prop = &_Jv_Environment_Properties[0]; | |
1120 | prop->key != NULL; | |
1121 | prop++) | |
1122 | { | |
1123 | prop->key[prop->key_length] = 0; | |
1124 | prop->value[prop->value_length] = 0; | |
1125 | } | |
ffccc6be AG |
1126 | } |
1127 | #endif // DISABLE_GETENV_PROPERTIES | |
1128 | ||
107abb2f BM |
1129 | namespace gcj |
1130 | { | |
1131 | _Jv_Utf8Const *void_signature; | |
1132 | _Jv_Utf8Const *clinit_name; | |
1133 | _Jv_Utf8Const *init_name; | |
1134 | _Jv_Utf8Const *finit_name; | |
afb2dec5 BM |
1135 | |
1136 | bool runtimeInitialized = false; | |
f5ea88a3 BM |
1137 | |
1138 | // When true, print debugging information about class loading. | |
1139 | bool verbose_class_flag; | |
1140 | ||
1141 | // When true, enable the bytecode verifier and BC-ABI type verification. | |
1142 | bool verifyClasses = true; | |
11922361 BM |
1143 | |
1144 | // Thread stack size specified by the -Xss runtime argument. | |
1145 | size_t stack_size = 0; | |
97b8365c TT |
1146 | |
1147 | // Start time of the VM | |
1148 | jlong startTime = 0; | |
1149 | ||
1150 | // Arguments passed to the VM | |
1151 | JArray<jstring>* vmArgs; | |
1152 | ||
1153 | // Currently loaded classes | |
1154 | jint loadedClasses = 0; | |
1155 | ||
1156 | // Unloaded classes | |
1157 | jlong unloadedClasses = 0; | |
107abb2f BM |
1158 | } |
1159 | ||
b6121641 TF |
1160 | // We accept all non-standard options accepted by Sun's java command, |
1161 | // for compatibility with existing application launch scripts. | |
1162 | static jint | |
1163 | parse_x_arg (char* option_string) | |
1164 | { | |
1165 | if (strlen (option_string) <= 0) | |
1166 | return -1; | |
1167 | ||
1168 | if (! strcmp (option_string, "int")) | |
1169 | { | |
1170 | // FIXME: this should cause the vm to never load shared objects | |
1171 | } | |
1172 | else if (! strcmp (option_string, "mixed")) | |
1173 | { | |
1174 | // FIXME: allow interpreted and native code | |
1175 | } | |
1176 | else if (! strcmp (option_string, "batch")) | |
1177 | { | |
1178 | // FIXME: disable background JIT'ing | |
1179 | } | |
1180 | else if (! strcmp (option_string, "debug")) | |
1181 | { | |
b8caf93e KS |
1182 | remoteDebug = true; |
1183 | } | |
86acf60c | 1184 | #ifdef INTERPRETER |
b8caf93e KS |
1185 | else if (! strncmp (option_string, "runjdwp:", 8)) |
1186 | { | |
1187 | if (strlen (option_string) > 8) | |
1188 | jdwpOptions = &option_string[8]; | |
1189 | else | |
1190 | { | |
1191 | fprintf (stderr, | |
1192 | "libgcj: argument required for JDWP options"); | |
1193 | return -1; | |
1194 | } | |
b6121641 | 1195 | } |
86acf60c | 1196 | #endif // INTERPRETER |
b6121641 TF |
1197 | else if (! strncmp (option_string, "bootclasspath:", 14)) |
1198 | { | |
1199 | // FIXME: add a parse_bootclasspath_arg function | |
1200 | } | |
1201 | else if (! strncmp (option_string, "bootclasspath/a:", 16)) | |
1202 | { | |
1203 | } | |
1204 | else if (! strncmp (option_string, "bootclasspath/p:", 16)) | |
1205 | { | |
1206 | } | |
1207 | else if (! strcmp (option_string, "check:jni")) | |
1208 | { | |
1209 | // FIXME: enable strict JNI checking | |
1210 | } | |
1211 | else if (! strcmp (option_string, "future")) | |
1212 | { | |
1213 | // FIXME: enable strict class file format checks | |
1214 | } | |
1215 | else if (! strcmp (option_string, "noclassgc")) | |
1216 | { | |
1217 | // FIXME: disable garbage collection for classes | |
1218 | } | |
1219 | else if (! strcmp (option_string, "incgc")) | |
1220 | { | |
1221 | // FIXME: incremental garbage collection | |
1222 | } | |
1223 | else if (! strncmp (option_string, "loggc:", 6)) | |
1224 | { | |
1225 | if (option_string[6] == '\0') | |
1226 | { | |
1227 | fprintf (stderr, | |
1228 | "libgcj: filename argument expected for loggc option\n"); | |
1229 | return -1; | |
1230 | } | |
1231 | // FIXME: set gc logging filename | |
1232 | } | |
1233 | else if (! strncmp (option_string, "ms", 2)) | |
1234 | { | |
1235 | // FIXME: ignore this option until PR 20699 is fixed. | |
1236 | // _Jv_SetInitialHeapSize (option_string + 2); | |
1237 | } | |
1238 | else if (! strncmp (option_string, "mx", 2)) | |
1239 | _Jv_SetMaximumHeapSize (option_string + 2); | |
1240 | else if (! strcmp (option_string, "prof")) | |
1241 | { | |
1242 | // FIXME: enable profiling of program running in vm | |
1243 | } | |
1244 | else if (! strncmp (option_string, "runhprof:", 9)) | |
1245 | { | |
1246 | // FIXME: enable specific type of vm profiling. add a | |
1247 | // parse_runhprof_arg function | |
1248 | } | |
1249 | else if (! strcmp (option_string, "rs")) | |
1250 | { | |
1251 | // FIXME: reduced system signal usage. disable thread dumps, | |
1252 | // only terminate in response to user-initiated calls, | |
1253 | // e.g. System.exit() | |
1254 | } | |
1255 | else if (! strncmp (option_string, "ss", 2)) | |
1256 | { | |
11922361 | 1257 | _Jv_SetStackSize (option_string + 2); |
b6121641 TF |
1258 | } |
1259 | else if (! strcmp (option_string, "X:+UseAltSigs")) | |
1260 | { | |
1261 | // FIXME: use signals other than SIGUSR1 and SIGUSR2 | |
1262 | } | |
1263 | else if (! strcmp (option_string, "share:off")) | |
1264 | { | |
1265 | // FIXME: don't share class data | |
1266 | } | |
1267 | else if (! strcmp (option_string, "share:auto")) | |
1268 | { | |
1269 | // FIXME: share class data where possible | |
1270 | } | |
1271 | else if (! strcmp (option_string, "share:on")) | |
1272 | { | |
1273 | // FIXME: fail if impossible to share class data | |
1274 | } | |
6e7b20ac TT |
1275 | else |
1276 | { | |
1277 | // Unrecognized. | |
1278 | return -1; | |
1279 | } | |
b6121641 TF |
1280 | return 0; |
1281 | } | |
1282 | ||
bc71e4a2 TF |
1283 | static jint |
1284 | parse_verbose_args (char* option_string, | |
b6121641 | 1285 | bool ignore_unrecognized) |
bc71e4a2 | 1286 | { |
23a8ae8d | 1287 | size_t len = sizeof ("-verbose") - 1; |
bc71e4a2 TF |
1288 | |
1289 | if (strlen (option_string) < len) | |
1290 | return -1; | |
1291 | ||
1292 | if (option_string[len] == ':' | |
1293 | && option_string[len + 1] != '\0') | |
1294 | { | |
1295 | char* verbose_args = option_string + len + 1; | |
bc71e4a2 TF |
1296 | |
1297 | do | |
1298 | { | |
1299 | if (! strncmp (verbose_args, | |
23a8ae8d TF |
1300 | "gc", sizeof ("gc") - 1)) |
1301 | { | |
1302 | if (verbose_args[sizeof ("gc") - 1] == '\0' | |
1303 | || verbose_args[sizeof ("gc") - 1] == ',') | |
1304 | { | |
1305 | // FIXME: we should add functions to boehm-gc that | |
1306 | // toggle GC_print_stats, GC_PRINT_ADDRESS_MAP and | |
1307 | // GC_print_back_height. | |
1308 | verbose_args += sizeof ("gc") - 1; | |
1309 | } | |
1310 | else | |
1311 | { | |
1312 | verbose_arg_err: | |
1313 | fprintf (stderr, "libgcj: unknown verbose option: %s\n", | |
1314 | option_string); | |
1315 | return -1; | |
1316 | } | |
1317 | } | |
bc71e4a2 TF |
1318 | else if (! strncmp (verbose_args, |
1319 | "class", | |
23a8ae8d TF |
1320 | sizeof ("class") - 1)) |
1321 | { | |
1322 | if (verbose_args[sizeof ("class") - 1] == '\0' | |
1323 | || verbose_args[sizeof ("class") - 1] == ',') | |
1324 | { | |
1325 | gcj::verbose_class_flag = true; | |
1326 | verbose_args += sizeof ("class") - 1; | |
1327 | } | |
1328 | else | |
1329 | goto verbose_arg_err; | |
1330 | } | |
bc71e4a2 | 1331 | else if (! strncmp (verbose_args, "jni", |
23a8ae8d TF |
1332 | sizeof ("jni") - 1)) |
1333 | { | |
1334 | if (verbose_args[sizeof ("jni") - 1] == '\0' | |
1335 | || verbose_args[sizeof ("jni") - 1] == ',') | |
1336 | { | |
1337 | // FIXME: enable JNI messages. | |
1338 | verbose_args += sizeof ("jni") - 1; | |
1339 | } | |
1340 | else | |
1341 | goto verbose_arg_err; | |
1342 | } | |
bc71e4a2 TF |
1343 | else if (ignore_unrecognized |
1344 | && verbose_args[0] == 'X') | |
1345 | { | |
1346 | // ignore unrecognized non-standard verbose option | |
23a8ae8d TF |
1347 | while (verbose_args[0] != '\0' |
1348 | && verbose_args[0] != ',') | |
1349 | verbose_args++; | |
bc71e4a2 | 1350 | } |
23a8ae8d TF |
1351 | else if (verbose_args[0] == ',') |
1352 | { | |
1353 | verbose_args++; | |
1354 | } | |
1355 | else | |
1356 | goto verbose_arg_err; | |
1357 | ||
1358 | if (verbose_args[0] == ',') | |
1359 | verbose_args++; | |
bc71e4a2 | 1360 | } |
23a8ae8d | 1361 | while (verbose_args[0] != '\0'); |
bc71e4a2 TF |
1362 | } |
1363 | else if (option_string[len] == 'g' | |
1364 | && option_string[len + 1] == 'c' | |
1365 | && option_string[len + 2] == '\0') | |
1366 | { | |
1367 | // FIXME: we should add functions to boehm-gc that | |
1368 | // toggle GC_print_stats, GC_PRINT_ADDRESS_MAP and | |
1369 | // GC_print_back_height. | |
1370 | return 0; | |
1371 | } | |
1372 | else if (option_string[len] == '\0') | |
1373 | { | |
1374 | gcj::verbose_class_flag = true; | |
1375 | return 0; | |
1376 | } | |
1377 | else | |
1378 | { | |
1379 | // unrecognized option beginning with -verbose | |
1380 | return -1; | |
1381 | } | |
1382 | return 0; | |
1383 | } | |
1384 | ||
86acf60c | 1385 | #ifdef INTERPRETER |
3fe9aa9e KG |
1386 | // This function loads the agent functions for JVMTI from the library indicated |
1387 | // by name. It returns a negative value on failure, the value of which | |
1388 | // indicates where ltdl failed, it also prints an error message. | |
1389 | static jint | |
1390 | load_jvmti_agent (const char *name) | |
1391 | { | |
1392 | #ifdef USE_LTDL | |
1393 | if (lt_dlinit ()) | |
1394 | { | |
1395 | fprintf (stderr, | |
1396 | "libgcj: Error in ltdl init while loading agent library.\n"); | |
1397 | return -1; | |
1398 | } | |
1399 | ||
1400 | lt_dlhandle lib = lt_dlopenext (name); | |
1401 | if (!lib) | |
1402 | { | |
1403 | fprintf (stderr, | |
1404 | "libgcj: Error opening agent library.\n"); | |
1405 | return -2; | |
1406 | } | |
1407 | ||
1408 | if (lib) | |
1409 | { | |
1410 | jvmti_agentonload | |
1411 | = (jvmti_agent_onload_func *) lt_dlsym (lib, "Agent_OnLoad"); | |
1412 | ||
1413 | if (!jvmti_agentonload) | |
1414 | { | |
1415 | fprintf (stderr, | |
70275c38 | 1416 | "libgcj: Error finding agent function in library %s.\n", |
3fe9aa9e KG |
1417 | name); |
1418 | lt_dlclose (lib); | |
1419 | lib = NULL; | |
1420 | return -4; | |
1421 | } | |
1422 | else | |
1423 | { | |
1424 | jvmti_agentonunload | |
1425 | = (jvmti_agent_onunload_func *) lt_dlsym (lib, "Agent_OnUnload"); | |
1426 | ||
1427 | return 0; | |
1428 | } | |
1429 | } | |
1430 | else | |
1431 | { | |
1432 | fprintf (stderr, "libgcj: Library %s not found in library path.\n", name); | |
1433 | return -3; | |
1434 | } | |
1435 | ||
1436 | #endif /* USE_LTDL */ | |
1437 | ||
1438 | // If LTDL cannot be used, return an error code indicating this. | |
1439 | return -99; | |
1440 | } | |
86acf60c | 1441 | #endif // INTERPRETER |
3fe9aa9e | 1442 | |
bc71e4a2 TF |
1443 | static jint |
1444 | parse_init_args (JvVMInitArgs* vm_args) | |
1445 | { | |
1446 | // if _Jv_Compiler_Properties is non-NULL then it needs to be | |
1447 | // re-allocated dynamically. | |
1448 | if (_Jv_Compiler_Properties) | |
1449 | { | |
1450 | const char** props = _Jv_Compiler_Properties; | |
1451 | _Jv_Compiler_Properties = NULL; | |
1452 | ||
1453 | for (int i = 0; props[i]; i++) | |
1454 | { | |
1455 | _Jv_Compiler_Properties = (const char**) _Jv_Realloc | |
1456 | (_Jv_Compiler_Properties, | |
1457 | (_Jv_Properties_Count + 1) * sizeof (const char*)); | |
1458 | _Jv_Compiler_Properties[_Jv_Properties_Count++] = props[i]; | |
1459 | } | |
1460 | } | |
1461 | ||
1462 | if (vm_args == NULL) | |
1463 | return 0; | |
1464 | ||
1465 | for (int i = 0; i < vm_args->nOptions; ++i) | |
1466 | { | |
1467 | char* option_string = vm_args->options[i].optionString; | |
3fe9aa9e | 1468 | |
bc71e4a2 TF |
1469 | if (! strcmp (option_string, "vfprintf") |
1470 | || ! strcmp (option_string, "exit") | |
1471 | || ! strcmp (option_string, "abort")) | |
1472 | { | |
1473 | // FIXME: we are required to recognize these, but for | |
1474 | // now we don't handle them in any way. | |
1475 | continue; | |
1476 | } | |
1477 | else if (! strncmp (option_string, | |
1478 | "-verbose", sizeof ("-verbose") - 1)) | |
1479 | { | |
1480 | jint result = parse_verbose_args (option_string, | |
b6121641 | 1481 | vm_args->ignoreUnrecognized); |
bc71e4a2 TF |
1482 | if (result < 0) |
1483 | return result; | |
1484 | } | |
1485 | else if (! strncmp (option_string, "-D", 2)) | |
1486 | { | |
1487 | _Jv_Compiler_Properties = (const char**) _Jv_Realloc | |
1488 | (_Jv_Compiler_Properties, | |
1489 | (_Jv_Properties_Count + 1) * sizeof (char*)); | |
1490 | ||
1491 | _Jv_Compiler_Properties[_Jv_Properties_Count++] = | |
1492 | strdup (option_string + 2); | |
1493 | ||
1494 | continue; | |
1495 | } | |
86acf60c | 1496 | #ifdef INTERPRETER |
3fe9aa9e KG |
1497 | else if (! strncmp (option_string, "-agentlib", sizeof ("-agentlib") - 1)) |
1498 | { | |
1499 | char *strPtr; | |
1500 | ||
1501 | if (strlen(option_string) > (sizeof ("-agentlib:") - 1)) | |
1502 | strPtr = &option_string[sizeof ("-agentlib:") - 1]; | |
1503 | else | |
1504 | { | |
1505 | fprintf (stderr, | |
1506 | "libgcj: Malformed agentlib argument %s: expected lib name\n", | |
1507 | option_string); | |
1508 | return -1; | |
1509 | } | |
1510 | ||
1511 | // These are optional arguments to pass to the agent library. | |
1512 | jvmti_agent_opts = strchr (strPtr, '='); | |
1513 | ||
1514 | if (! strncmp (strPtr, "jdwp", 4)) | |
1515 | { | |
1516 | // We want to run JDWP here so set the correct variables. | |
1517 | remoteDebug = true; | |
1518 | jdwpOptions = ++jvmti_agent_opts; | |
1519 | } | |
1520 | else | |
1521 | { | |
1522 | jint nameLength; | |
1523 | ||
1524 | if (jvmti_agent_opts == NULL) | |
1525 | nameLength = strlen (strPtr); | |
1526 | else | |
1527 | { | |
1528 | nameLength = jvmti_agent_opts - strPtr; | |
1529 | jvmti_agent_opts++; | |
1530 | } | |
1531 | ||
1532 | char lib_name[nameLength + 3 + 1]; | |
1533 | strcpy (lib_name, "lib"); | |
1534 | strncat (lib_name, strPtr, nameLength); | |
1535 | ||
1536 | jint result = load_jvmti_agent (lib_name); | |
1537 | ||
1538 | if (result < 0) | |
1539 | { | |
1540 | return -1; | |
1541 | } | |
e1b871ec KS |
1542 | |
1543 | // Mark JVMTI active | |
1544 | JVMTI::enabled = true; | |
3fe9aa9e KG |
1545 | } |
1546 | ||
1547 | continue; | |
1548 | } | |
1549 | else if (! strncmp (option_string, "-agentpath:", | |
1550 | sizeof ("-agentpath:") - 1)) | |
1551 | { | |
1552 | char *strPtr; | |
1553 | ||
1554 | if (strlen(option_string) > 10) | |
1555 | strPtr = &option_string[10]; | |
1556 | else | |
1557 | { | |
1558 | fprintf (stderr, | |
1559 | "libgcj: Malformed agentlib argument %s: expected lib path\n", | |
1560 | option_string); | |
1561 | return -1; | |
1562 | } | |
1563 | ||
1564 | // These are optional arguments to pass to the agent library. | |
1565 | jvmti_agent_opts = strchr (strPtr, '='); | |
1566 | ||
1567 | jint nameLength; | |
1568 | ||
1569 | if (jvmti_agent_opts == NULL) | |
1570 | nameLength = strlen (strPtr); | |
1571 | else | |
1572 | { | |
1573 | nameLength = jvmti_agent_opts - strPtr; | |
1574 | jvmti_agent_opts++; | |
1575 | } | |
1576 | ||
1577 | char lib_name[nameLength + 3 + 1]; | |
1578 | strcpy (lib_name, "lib"); | |
1579 | strncat (lib_name, strPtr, nameLength); | |
1580 | jint result = load_jvmti_agent (strPtr); | |
1581 | ||
1582 | if (result < 0) | |
1583 | { | |
1584 | return -1; | |
1585 | } | |
1586 | ||
e1b871ec KS |
1587 | // Mark JVMTI active |
1588 | JVMTI::enabled = true; | |
3fe9aa9e KG |
1589 | continue; |
1590 | } | |
86acf60c | 1591 | #endif // INTERPRETER |
6e7b20ac | 1592 | else |
b6121641 | 1593 | { |
6e7b20ac | 1594 | int r = -1; |
b6121641 | 1595 | if (option_string[0] == '_') |
6e7b20ac TT |
1596 | r = parse_x_arg (option_string + 1); |
1597 | else if (! strncmp (option_string, "-X", 2)) | |
1598 | r = parse_x_arg (option_string + 2); | |
1599 | ||
1600 | if (r == -1 && ! vm_args->ignoreUnrecognized) | |
b6121641 | 1601 | { |
b6121641 TF |
1602 | fprintf (stderr, "libgcj: unknown option: %s\n", option_string); |
1603 | return -1; | |
1604 | } | |
bc71e4a2 TF |
1605 | } |
1606 | } | |
1607 | return 0; | |
1608 | } | |
1609 | ||
c93d7fae | 1610 | jint |
bc71e4a2 | 1611 | _Jv_CreateJavaVM (JvVMInitArgs* vm_args) |
9b0cb287 | 1612 | { |
107abb2f | 1613 | using namespace gcj; |
bc71e4a2 | 1614 | |
afb2dec5 | 1615 | if (runtimeInitialized) |
107abb2f BM |
1616 | return -1; |
1617 | ||
97b8365c TT |
1618 | runtimeInitialized = true; |
1619 | startTime = _Jv_platform_gettimeofday(); | |
1620 | ||
bc71e4a2 TF |
1621 | jint result = parse_init_args (vm_args); |
1622 | if (result < 0) | |
1623 | return -1; | |
1624 | ||
ffccc6be AG |
1625 | PROCESS_GCJ_PROPERTIES; |
1626 | ||
7e9534bc DD |
1627 | /* Threads must be initialized before the GC, so that it inherits the |
1628 | signal mask. */ | |
107abb2f BM |
1629 | _Jv_InitThreads (); |
1630 | _Jv_InitGC (); | |
1631 | _Jv_InitializeSyncMutex (); | |
6187fd28 BM |
1632 | |
1633 | #ifdef INTERPRETER | |
1634 | _Jv_InitInterpreter (); | |
1635 | #endif | |
107abb2f | 1636 | |
bd760894 RM |
1637 | #ifdef HANDLE_SEGV |
1638 | INIT_SEGV; | |
1639 | #endif | |
1640 | ||
1641 | #ifdef HANDLE_FPE | |
1642 | INIT_FPE; | |
1643 | #endif | |
1644 | ||
107abb2f BM |
1645 | /* Initialize Utf8 constants declared in jvm.h. */ |
1646 | void_signature = _Jv_makeUtf8Const ("()V", 3); | |
1647 | clinit_name = _Jv_makeUtf8Const ("<clinit>", 8); | |
1648 | init_name = _Jv_makeUtf8Const ("<init>", 6); | |
1649 | finit_name = _Jv_makeUtf8Const ("finit$", 6); | |
1650 | ||
1651 | /* Initialize built-in classes to represent primitive TYPEs. */ | |
ffe4e037 BM |
1652 | _Jv_InitPrimClass (&_Jv_byteClass, "byte", 'B', 1); |
1653 | _Jv_InitPrimClass (&_Jv_shortClass, "short", 'S', 2); | |
1654 | _Jv_InitPrimClass (&_Jv_intClass, "int", 'I', 4); | |
1655 | _Jv_InitPrimClass (&_Jv_longClass, "long", 'J', 8); | |
1656 | _Jv_InitPrimClass (&_Jv_booleanClass, "boolean", 'Z', 1); | |
1657 | _Jv_InitPrimClass (&_Jv_charClass, "char", 'C', 2); | |
1658 | _Jv_InitPrimClass (&_Jv_floatClass, "float", 'F', 4); | |
1659 | _Jv_InitPrimClass (&_Jv_doubleClass, "double", 'D', 8); | |
1660 | _Jv_InitPrimClass (&_Jv_voidClass, "void", 'V', 0); | |
107abb2f | 1661 | |
092b50e2 NB |
1662 | // We have to initialize this fairly early, to avoid circular class |
1663 | // initialization. In particular we want to start the | |
1664 | // initialization of ClassLoader before we start the initialization | |
1665 | // of VMClassLoader. | |
1666 | _Jv_InitClass (&java::lang::ClassLoader::class$); | |
bd760894 | 1667 | |
aa893047 | 1668 | // Set up the system class loader and the bootstrap class loader. |
ef874386 TT |
1669 | gnu::gcj::runtime::ExtensionClassLoader::initialize(); |
1670 | java::lang::VMClassLoader::initialize(JvNewStringLatin1(TOOLEXECLIBDIR)); | |
092b50e2 | 1671 | |
3fd80100 TT |
1672 | _Jv_RegisterBootstrapPackages(); |
1673 | ||
c93d7fae | 1674 | no_memory = new java::lang::OutOfMemoryError; |
092b50e2 | 1675 | |
c93d7fae PB |
1676 | #ifdef USE_LTDL |
1677 | LTDL_SET_PRELOADED_SYMBOLS (); | |
1678 | #endif | |
1679 | ||
73272ce6 | 1680 | _Jv_platform_initialize (); |
c93d7fae PB |
1681 | |
1682 | _Jv_JNI_Init (); | |
86acf60c DD |
1683 | |
1684 | #ifdef INTERPRETER | |
e6789bef | 1685 | _Jv_JVMTI_Init (); |
86acf60c | 1686 | #endif |
c93d7fae | 1687 | |
eeedeb5a TT |
1688 | _Jv_GCInitializeFinalizers (&::gnu::gcj::runtime::FinalizerThread::finalizerReady); |
1689 | ||
1690 | // Start the GC finalizer thread. A VirtualMachineError can be | |
31a7b755 | 1691 | // thrown by the runtime if, say, threads aren't available. |
eeedeb5a TT |
1692 | try |
1693 | { | |
1694 | using namespace gnu::gcj::runtime; | |
1695 | FinalizerThread *ft = new FinalizerThread (); | |
1696 | ft->start (); | |
1697 | } | |
1698 | catch (java::lang::VirtualMachineError *ignore) | |
1699 | { | |
1700 | } | |
1701 | ||
8d0941a9 GB |
1702 | runtimeInitialized = true; |
1703 | ||
c93d7fae PB |
1704 | return 0; |
1705 | } | |
1706 | ||
c93d7fae | 1707 | void |
b6121641 TF |
1708 | _Jv_RunMain (JvVMInitArgs *vm_args, jclass klass, const char *name, int argc, |
1709 | const char **argv, bool is_jar) | |
c93d7fae | 1710 | { |
f82bb1be | 1711 | #ifndef DISABLE_MAIN_ARGS |
c4519773 | 1712 | _Jv_SetArgs (argc, argv); |
f82bb1be | 1713 | #endif |
0acff4bc | 1714 | |
2dc55bc9 BM |
1715 | java::lang::Runtime *runtime = NULL; |
1716 | ||
2dc55bc9 BM |
1717 | try |
1718 | { | |
b6121641 | 1719 | if (_Jv_CreateJavaVM (vm_args) < 0) |
bc71e4a2 TF |
1720 | { |
1721 | fprintf (stderr, "libgcj: couldn't create virtual machine\n"); | |
1722 | exit (1); | |
1723 | } | |
97b8365c TT |
1724 | |
1725 | if (vm_args == NULL) | |
1726 | gcj::vmArgs = JvConvertArgv(0, NULL); | |
1727 | else | |
1728 | { | |
1729 | const char* vmArgs[vm_args->nOptions]; | |
1730 | const char** vmPtr = vmArgs; | |
1731 | struct _Jv_VMOption* optionPtr = vm_args->options; | |
1732 | for (int i = 0; i < vm_args->nOptions; ++i) | |
1733 | *vmPtr++ = (*optionPtr++).optionString; | |
1734 | gcj::vmArgs = JvConvertArgv(vm_args->nOptions, vmArgs); | |
1735 | } | |
04476544 | 1736 | |
2dc55bc9 BM |
1737 | // Get the Runtime here. We want to initialize it before searching |
1738 | // for `main'; that way it will be set up if `main' is a JNI method. | |
1739 | runtime = java::lang::Runtime::getRuntime (); | |
6728a61d | 1740 | |
b5ee195f AG |
1741 | #ifdef DISABLE_MAIN_ARGS |
1742 | arg_vec = JvConvertArgv (0, 0); | |
1743 | #else | |
2dc55bc9 | 1744 | arg_vec = JvConvertArgv (argc - 1, argv + 1); |
b5ee195f | 1745 | #endif |
1ca1c91b | 1746 | |
74fa958e | 1747 | using namespace gnu::java::lang; |
2dc55bc9 | 1748 | if (klass) |
74fa958e | 1749 | main_thread = new MainThread (klass, arg_vec); |
2dc55bc9 | 1750 | else |
7d6d782d | 1751 | main_thread = new MainThread (JvNewStringUTF (name), |
74fa958e | 1752 | arg_vec, is_jar); |
b8caf93e | 1753 | _Jv_AttachCurrentThread (main_thread); |
86acf60c DD |
1754 | |
1755 | #ifdef INTERPRETER | |
3fe9aa9e KG |
1756 | // Start JVMTI if an agent function has been found. |
1757 | if (jvmti_agentonload) | |
1758 | (*jvmti_agentonload) (_Jv_GetJavaVM (), jvmti_agent_opts, NULL); | |
b8caf93e KS |
1759 | |
1760 | // Start JDWP | |
1761 | if (remoteDebug) | |
1762 | { | |
1763 | using namespace gnu::classpath::jdwp; | |
1764 | VMVirtualMachine::initialize (); | |
1765 | Jdwp *jdwp = new Jdwp (); | |
3fe9aa9e | 1766 | jdwp->setDaemon (true); |
b8caf93e KS |
1767 | jdwp->configure (JvNewStringLatin1 (jdwpOptions)); |
1768 | jdwp->start (); | |
1769 | ||
1770 | // Wait for JDWP to initialize and start | |
1771 | jdwp->join (); | |
1772 | } | |
078b3073 KS |
1773 | // Send VMInit |
1774 | if (JVMTI_REQUESTED_EVENT (VMInit)) | |
1775 | _Jv_JVMTI_PostEvent (JVMTI_EVENT_VM_INIT, main_thread); | |
86acf60c | 1776 | #endif // INTERPRETER |
1a558147 | 1777 | } |
2dc55bc9 | 1778 | catch (java::lang::Throwable *t) |
1a558147 | 1779 | { |
2dc55bc9 BM |
1780 | java::lang::System::err->println (JvNewStringLatin1 |
1781 | ("Exception during runtime initialization")); | |
1782 | t->printStackTrace(); | |
aa893047 | 1783 | if (runtime) |
119afc37 | 1784 | java::lang::Runtime::exitNoChecksAccessor (1); |
aa893047 TT |
1785 | // In case the runtime creation failed. |
1786 | ::exit (1); | |
1a558147 | 1787 | } |
0f94c029 | 1788 | |
2dc55bc9 | 1789 | _Jv_ThreadRun (main_thread); |
2dc55bc9 | 1790 | |
86acf60c | 1791 | #ifdef INTERPRETER |
078b3073 KS |
1792 | // Send VMDeath |
1793 | if (JVMTI_REQUESTED_EVENT (VMDeath)) | |
b8caf93e | 1794 | { |
078b3073 KS |
1795 | java::lang::Thread *thread = java::lang::Thread::currentThread (); |
1796 | JNIEnv *jni_env = _Jv_GetCurrentJNIEnv (); | |
1797 | _Jv_JVMTI_PostEvent (JVMTI_EVENT_VM_DEATH, thread, jni_env); | |
b8caf93e | 1798 | } |
86acf60c DD |
1799 | |
1800 | // Run JVMTI AgentOnUnload if it exists and an agent is loaded. | |
3fe9aa9e KG |
1801 | if (jvmti_agentonunload) |
1802 | (*jvmti_agentonunload) (_Jv_GetJavaVM ()); | |
86acf60c | 1803 | #endif // INTERPRETER |
b8caf93e | 1804 | |
1058a848 TT |
1805 | // If we got here then something went wrong, as MainThread is not |
1806 | // supposed to terminate. | |
1807 | ::exit (1); | |
2dc55bc9 | 1808 | } |
0f94c029 | 1809 | |
b6121641 TF |
1810 | void |
1811 | _Jv_RunMain (jclass klass, const char *name, int argc, const char **argv, | |
1812 | bool is_jar) | |
1813 | { | |
1814 | _Jv_RunMain (NULL, klass, name, argc, argv, is_jar); | |
1815 | } | |
1816 | ||
2dc55bc9 BM |
1817 | void |
1818 | JvRunMain (jclass klass, int argc, const char **argv) | |
1819 | { | |
1820 | _Jv_RunMain (klass, NULL, argc, argv, false); | |
ee9dd372 TT |
1821 | } |
1822 | ||
97b8365c TT |
1823 | void |
1824 | JvRunMainName (const char *name, int argc, const char **argv) | |
1825 | { | |
1826 | _Jv_RunMain (NULL, name, argc, argv, false); | |
1827 | } | |
1828 | ||
b8c3c4f0 TT |
1829 | \f |
1830 | ||
1831 | // Parse a string and return a heap size. | |
1832 | static size_t | |
11922361 | 1833 | parse_memory_size (const char *spec) |
b8c3c4f0 TT |
1834 | { |
1835 | char *end; | |
1836 | unsigned long val = strtoul (spec, &end, 10); | |
3948f9d0 JS |
1837 | if (*end == 'k' || *end == 'K') |
1838 | val *= 1024; | |
1839 | else if (*end == 'm' || *end == 'M') | |
1840 | val *= 1048576; | |
b8c3c4f0 TT |
1841 | return (size_t) val; |
1842 | } | |
1843 | ||
1844 | // Set the initial heap size. This might be ignored by the GC layer. | |
1845 | // This must be called before _Jv_RunMain. | |
1846 | void | |
1847 | _Jv_SetInitialHeapSize (const char *arg) | |
1848 | { | |
11922361 | 1849 | size_t size = parse_memory_size (arg); |
b8c3c4f0 TT |
1850 | _Jv_GCSetInitialHeapSize (size); |
1851 | } | |
1852 | ||
1853 | // Set the maximum heap size. This might be ignored by the GC layer. | |
1854 | // This must be called before _Jv_RunMain. | |
1855 | void | |
1856 | _Jv_SetMaximumHeapSize (const char *arg) | |
1857 | { | |
11922361 | 1858 | size_t size = parse_memory_size (arg); |
b8c3c4f0 TT |
1859 | _Jv_GCSetMaximumHeapSize (size); |
1860 | } | |
58eb6e7c | 1861 | |
11922361 BM |
1862 | void |
1863 | _Jv_SetStackSize (const char *arg) | |
1864 | { | |
1865 | size_t size = parse_memory_size (arg); | |
1866 | gcj::stack_size = size; | |
1867 | } | |
ee9dd372 | 1868 | |
7e648cf9 | 1869 | void * |
ddf0fc6c | 1870 | _Jv_Malloc (jsize size) |
7e648cf9 | 1871 | { |
9d4c2148 | 1872 | if (__builtin_expect (size == 0, false)) |
7e648cf9 | 1873 | size = 1; |
ddf0fc6c | 1874 | void *ptr = malloc ((size_t) size); |
9d4c2148 | 1875 | if (__builtin_expect (ptr == NULL, false)) |
b3208f56 | 1876 | throw no_memory; |
ddf0fc6c | 1877 | return ptr; |
7e648cf9 TT |
1878 | } |
1879 | ||
ee9dd372 | 1880 | void * |
ddf0fc6c | 1881 | _Jv_Realloc (void *ptr, jsize size) |
ee9dd372 | 1882 | { |
9d4c2148 | 1883 | if (__builtin_expect (size == 0, false)) |
ee9dd372 | 1884 | size = 1; |
ddf0fc6c | 1885 | ptr = realloc (ptr, (size_t) size); |
9d4c2148 | 1886 | if (__builtin_expect (ptr == NULL, false)) |
b3208f56 | 1887 | throw no_memory; |
ee9dd372 TT |
1888 | return ptr; |
1889 | } | |
1890 | ||
ddf0fc6c BM |
1891 | void * |
1892 | _Jv_MallocUnchecked (jsize size) | |
1893 | { | |
9d4c2148 | 1894 | if (__builtin_expect (size == 0, false)) |
ddf0fc6c BM |
1895 | size = 1; |
1896 | return malloc ((size_t) size); | |
1897 | } | |
1898 | ||
ee9dd372 TT |
1899 | void |
1900 | _Jv_Free (void* ptr) | |
1901 | { | |
1902 | return free (ptr); | |
1903 | } | |
d342a2e1 AH |
1904 | |
1905 | \f | |
1906 | ||
1907 | // In theory, these routines can be #ifdef'd away on machines which | |
1908 | // support divide overflow signals. However, we never know if some | |
1909 | // code might have been compiled with "-fuse-divide-subroutine", so we | |
1910 | // always include them in libgcj. | |
1911 | ||
1912 | jint | |
1913 | _Jv_divI (jint dividend, jint divisor) | |
1914 | { | |
9d4c2148 | 1915 | if (__builtin_expect (divisor == 0, false)) |
bec3e66d AH |
1916 | { |
1917 | java::lang::ArithmeticException *arithexception | |
1918 | = new java::lang::ArithmeticException (JvNewStringLatin1 ("/ by zero")); | |
1919 | throw arithexception; | |
1920 | } | |
d342a2e1 | 1921 | |
58eb6e7c | 1922 | if (dividend == (jint) 0x80000000L && divisor == -1) |
d342a2e1 AH |
1923 | return dividend; |
1924 | ||
1925 | return dividend / divisor; | |
1926 | } | |
1927 | ||
1928 | jint | |
1929 | _Jv_remI (jint dividend, jint divisor) | |
1930 | { | |
9d4c2148 | 1931 | if (__builtin_expect (divisor == 0, false)) |
bec3e66d AH |
1932 | { |
1933 | java::lang::ArithmeticException *arithexception | |
1934 | = new java::lang::ArithmeticException (JvNewStringLatin1 ("/ by zero")); | |
1935 | throw arithexception; | |
1936 | } | |
d342a2e1 | 1937 | |
58eb6e7c | 1938 | if (dividend == (jint) 0x80000000L && divisor == -1) |
d342a2e1 | 1939 | return 0; |
bec3e66d | 1940 | |
d342a2e1 AH |
1941 | return dividend % divisor; |
1942 | } | |
1943 | ||
1944 | jlong | |
1945 | _Jv_divJ (jlong dividend, jlong divisor) | |
1946 | { | |
9d4c2148 | 1947 | if (__builtin_expect (divisor == 0, false)) |
bec3e66d AH |
1948 | { |
1949 | java::lang::ArithmeticException *arithexception | |
1950 | = new java::lang::ArithmeticException (JvNewStringLatin1 ("/ by zero")); | |
1951 | throw arithexception; | |
1952 | } | |
1953 | ||
58eb6e7c | 1954 | if (dividend == (jlong) 0x8000000000000000LL && divisor == -1) |
d342a2e1 AH |
1955 | return dividend; |
1956 | ||
1957 | return dividend / divisor; | |
1958 | } | |
1959 | ||
1960 | jlong | |
1961 | _Jv_remJ (jlong dividend, jlong divisor) | |
1962 | { | |
9d4c2148 | 1963 | if (__builtin_expect (divisor == 0, false)) |
bec3e66d AH |
1964 | { |
1965 | java::lang::ArithmeticException *arithexception | |
1966 | = new java::lang::ArithmeticException (JvNewStringLatin1 ("/ by zero")); | |
1967 | throw arithexception; | |
1968 | } | |
1969 | ||
58eb6e7c | 1970 | if (dividend == (jlong) 0x8000000000000000LL && divisor == -1) |
d342a2e1 AH |
1971 | return 0; |
1972 | ||
1973 | return dividend % divisor; | |
1974 | } | |
ffd94572 TT |
1975 | |
1976 | \f | |
1977 | ||
1978 | // Return true if SELF_KLASS can access a field or method in | |
1979 | // OTHER_KLASS. The field or method's access flags are specified in | |
1980 | // FLAGS. | |
1981 | jboolean | |
1982 | _Jv_CheckAccess (jclass self_klass, jclass other_klass, jint flags) | |
1983 | { | |
1984 | using namespace java::lang::reflect; | |
1985 | return ((self_klass == other_klass) | |
1986 | || ((flags & Modifier::PUBLIC) != 0) | |
1987 | || (((flags & Modifier::PROTECTED) != 0) | |
852993e3 | 1988 | && _Jv_IsAssignableFromSlow (self_klass, other_klass)) |
ffd94572 TT |
1989 | || (((flags & Modifier::PRIVATE) == 0) |
1990 | && _Jv_ClassNameSamePackage (self_klass->name, | |
1991 | other_klass->name))); | |
1992 | } | |
8c0633b7 TF |
1993 | |
1994 | // Prepend GCJ_VERSIONED_LIBDIR to a module search path stored in a C | |
1995 | // char array, if the path is not already prefixed by | |
1996 | // GCJ_VERSIONED_LIBDIR. Return a newly JvMalloc'd char buffer. The | |
1997 | // result should be freed using JvFree. | |
1998 | char* | |
1999 | _Jv_PrependVersionedLibdir (char* libpath) | |
2000 | { | |
2001 | char* retval = 0; | |
2002 | ||
2003 | if (libpath && libpath[0] != '\0') | |
2004 | { | |
2005 | if (! strncmp (libpath, | |
2006 | GCJ_VERSIONED_LIBDIR, | |
2007 | sizeof (GCJ_VERSIONED_LIBDIR) - 1)) | |
2008 | { | |
2009 | // LD_LIBRARY_PATH is already prefixed with | |
2010 | // GCJ_VERSIONED_LIBDIR. | |
2011 | retval = (char*) _Jv_Malloc (strlen (libpath) + 1); | |
2012 | strcpy (retval, libpath); | |
2013 | } | |
2014 | else | |
2015 | { | |
2016 | // LD_LIBRARY_PATH is not prefixed with | |
2017 | // GCJ_VERSIONED_LIBDIR. | |
ab6b9a13 TT |
2018 | char path_sep[2]; |
2019 | path_sep[0] = (char) _Jv_platform_path_separator; | |
2020 | path_sep[1] = '\0'; | |
2021 | jsize total = ((sizeof (GCJ_VERSIONED_LIBDIR) - 1) | |
2022 | + 1 /* path separator */ + strlen (libpath) + 1); | |
8c0633b7 TF |
2023 | retval = (char*) _Jv_Malloc (total); |
2024 | strcpy (retval, GCJ_VERSIONED_LIBDIR); | |
ab6b9a13 | 2025 | strcat (retval, path_sep); |
8c0633b7 TF |
2026 | strcat (retval, libpath); |
2027 | } | |
2028 | } | |
2029 | else | |
2030 | { | |
2031 | // LD_LIBRARY_PATH was not specified or is empty. | |
2032 | retval = (char*) _Jv_Malloc (sizeof (GCJ_VERSIONED_LIBDIR)); | |
2033 | strcpy (retval, GCJ_VERSIONED_LIBDIR); | |
2034 | } | |
2035 | ||
2036 | return retval; | |
2037 | } |