1 /*
2 * Copyright (c) 1998, 2010, 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 #include "precompiled.hpp"
26 #include "compiler/compilerOracle.hpp"
27 #include "memory/allocation.inline.hpp"
28 #include "memory/oopFactory.hpp"
29 #include "memory/resourceArea.hpp"
30 #include "oops/klass.hpp"
31 #include "oops/methodOop.hpp"
32 #include "oops/oop.inline.hpp"
33 #include "oops/symbolOop.hpp"
34 #include "runtime/handles.inline.hpp"
35 #include "runtime/jniHandles.hpp"
36
37 class MethodMatcher : public CHeapObj {
38 public:
39 enum Mode {
40 Exact,
41 Prefix = 1,
42 Suffix = 2,
43 Substring = Prefix | Suffix,
44 Any,
45 Unknown = -1
46 };
47
48 protected:
49 jobject _class_name;
50 Mode _class_mode;
51 jobject _method_name;
52 Mode _method_mode;
53 jobject _signature;
54 MethodMatcher* _next;
55
56 static bool match(symbolHandle candidate, symbolHandle match, Mode match_mode);
57
58 symbolHandle class_name() const { return (symbolOop)JNIHandles::resolve_non_null(_class_name); }
59 symbolHandle method_name() const { return (symbolOop)JNIHandles::resolve_non_null(_method_name); }
60 symbolHandle signature() const { return (symbolOop)JNIHandles::resolve(_signature); }
61
62 public:
63 MethodMatcher(symbolHandle class_name, Mode class_mode,
64 symbolHandle method_name, Mode method_mode,
65 symbolHandle signature, MethodMatcher* next);
66 MethodMatcher(symbolHandle class_name, symbolHandle method_name, MethodMatcher* next);
67
68 // utility method
69 MethodMatcher* find(methodHandle method) {
70 symbolHandle class_name = Klass::cast(method->method_holder())->name();
71 symbolHandle method_name = method->name();
72 for (MethodMatcher* current = this; current != NULL; current = current->_next) {
73 if (match(class_name, current->class_name(), current->_class_mode) &&
74 match(method_name, current->method_name(), current->_method_mode) &&
75 (current->signature().is_null() || current->signature()() == method->signature())) {
76 return current;
77 }
78 }
79 return NULL;
80 }
81
82 bool match(methodHandle method) {
83 return find(method) != NULL;
84 }
85
86 MethodMatcher* next() const { return _next; }
87
88 static void print_symbol(symbolHandle h, Mode mode) {
89 ResourceMark rm;
90
91 if (mode == Suffix || mode == Substring || mode == Any) {
92 tty->print("*");
93 }
94 if (mode != Any) {
95 h()->print_symbol_on(tty);
96 }
97 if (mode == Prefix || mode == Substring) {
98 tty->print("*");
99 }
100 }
101
102 void print_base() {
103 print_symbol(class_name(), _class_mode);
104 tty->print(".");
105 print_symbol(method_name(), _method_mode);
106 if (!signature().is_null()) {
107 tty->print(" ");
108 signature()->print_symbol_on(tty);
109 }
110 }
111
112 virtual void print() {
113 print_base();
114 tty->cr();
115 }
116 };
117
118 MethodMatcher::MethodMatcher(symbolHandle class_name, symbolHandle method_name, MethodMatcher* next) {
119 _class_name = JNIHandles::make_global(class_name);
120 _method_name = JNIHandles::make_global(method_name);
121 _next = next;
122 _class_mode = MethodMatcher::Exact;
123 _method_mode = MethodMatcher::Exact;
124 _signature = NULL;
125 }
126
127
128 MethodMatcher::MethodMatcher(symbolHandle class_name, Mode class_mode,
129 symbolHandle method_name, Mode method_mode,
130 symbolHandle signature, MethodMatcher* next):
131 _class_mode(class_mode)
132 , _method_mode(method_mode)
133 , _next(next)
134 , _class_name(JNIHandles::make_global(class_name()))
135 , _method_name(JNIHandles::make_global(method_name()))
136 , _signature(JNIHandles::make_global(signature())) {
137 }
138
139 bool MethodMatcher::match(symbolHandle candidate, symbolHandle match, Mode match_mode) {
140 if (match_mode == Any) {
141 return true;
142 }
143
144 if (match_mode == Exact) {
145 return candidate() == match();
146 }
147
148 ResourceMark rm;
149 const char * candidate_string = candidate->as_C_string();
150 const char * match_string = match->as_C_string();
151
152 switch (match_mode) {
153 case Prefix:
154 return strstr(candidate_string, match_string) == candidate_string;
155
156 case Suffix: {
157 size_t clen = strlen(candidate_string);
158 size_t mlen = strlen(match_string);
159 return clen >= mlen && strcmp(candidate_string + clen - mlen, match_string) == 0;
160 }
161
162 case Substring:
163 return strstr(candidate_string, match_string) != NULL;
164
165 default:
166 return false;
167 }
168 }
169
170
171 class MethodOptionMatcher: public MethodMatcher {
172 const char * option;
173 public:
174 MethodOptionMatcher(symbolHandle class_name, Mode class_mode,
175 symbolHandle method_name, Mode method_mode,
176 symbolHandle signature, const char * opt, MethodMatcher* next):
177 MethodMatcher(class_name, class_mode, method_name, method_mode, signature, next) {
178 option = opt;
179 }
180
181 bool match(methodHandle method, const char* opt) {
182 MethodOptionMatcher* current = this;
183 while (current != NULL) {
184 current = (MethodOptionMatcher*)current->find(method);
185 if (current == NULL) {
186 return false;
187 }
188 if (strcmp(current->option, opt) == 0) {
189 return true;
190 }
191 current = current->next();
192 }
193 return false;
194 }
195
196 MethodOptionMatcher* next() {
197 return (MethodOptionMatcher*)_next;
198 }
199
200 virtual void print() {
201 print_base();
202 tty->print(" %s", option);
203 tty->cr();
204 }
205 };
206
207
208
209 // this must parallel the command_names below
210 enum OracleCommand {
211 UnknownCommand = -1,
212 OracleFirstCommand = 0,
213 BreakCommand = OracleFirstCommand,
214 PrintCommand,
215 ExcludeCommand,
216 InlineCommand,
217 DontInlineCommand,
218 CompileOnlyCommand,
219 LogCommand,
220 OptionCommand,
221 QuietCommand,
222 HelpCommand,
223 OracleCommandCount
224 };
225
226 // this must parallel the enum OracleCommand
227 static const char * command_names[] = {
228 "break",
229 "print",
230 "exclude",
231 "inline",
232 "dontinline",
233 "compileonly",
234 "log",
235 "option",
236 "quiet",
237 "help"
238 };
239
240 static const char * command_name(OracleCommand command) {
241 if (command < OracleFirstCommand || command >= OracleCommandCount) {
242 return "unknown command";
243 }
244 return command_names[command];
245 }
246
247 class MethodMatcher;
248 static MethodMatcher* lists[OracleCommandCount] = { 0, };
249
250
251 static bool check_predicate(OracleCommand command, methodHandle method) {
252 return ((lists[command] != NULL) &&
253 !method.is_null() &&
254 lists[command]->match(method));
255 }
256
257
258 static MethodMatcher* add_predicate(OracleCommand command,
259 symbolHandle class_name, MethodMatcher::Mode c_mode,
260 symbolHandle method_name, MethodMatcher::Mode m_mode,
261 symbolHandle signature) {
262 assert(command != OptionCommand, "must use add_option_string");
263 if (command == LogCommand && !LogCompilation && lists[LogCommand] == NULL)
264 tty->print_cr("Warning: +LogCompilation must be enabled in order for individual methods to be logged.");
265 lists[command] = new MethodMatcher(class_name, c_mode, method_name, m_mode, signature, lists[command]);
266 return lists[command];
267 }
268
269
270
271 static MethodMatcher* add_option_string(symbolHandle class_name, MethodMatcher::Mode c_mode,
272 symbolHandle method_name, MethodMatcher::Mode m_mode,
273 symbolHandle signature,
274 const char* option) {
275 lists[OptionCommand] = new MethodOptionMatcher(class_name, c_mode, method_name, m_mode,
276 signature, option, lists[OptionCommand]);
277 return lists[OptionCommand];
278 }
279
280
281 bool CompilerOracle::has_option_string(methodHandle method, const char* option) {
282 return lists[OptionCommand] != NULL &&
283 ((MethodOptionMatcher*)lists[OptionCommand])->match(method, option);
284 }
285
286
287 bool CompilerOracle::should_exclude(methodHandle method, bool& quietly) {
288 quietly = true;
289 if (lists[ExcludeCommand] != NULL) {
290 if (lists[ExcludeCommand]->match(method)) {
291 quietly = _quiet;
292 return true;
293 }
294 }
295
296 if (lists[CompileOnlyCommand] != NULL) {
297 return !lists[CompileOnlyCommand]->match(method);
298 }
299 return false;
300 }
301
302
303 bool CompilerOracle::should_inline(methodHandle method) {
304 return (check_predicate(InlineCommand, method));
305 }
306
307
308 bool CompilerOracle::should_not_inline(methodHandle method) {
309 return (check_predicate(DontInlineCommand, method));
310 }
311
312
313 bool CompilerOracle::should_print(methodHandle method) {
314 return (check_predicate(PrintCommand, method));
315 }
316
317
318 bool CompilerOracle::should_log(methodHandle method) {
319 if (!LogCompilation) return false;
320 if (lists[LogCommand] == NULL) return true; // by default, log all
321 return (check_predicate(LogCommand, method));
322 }
323
324
325 bool CompilerOracle::should_break_at(methodHandle method) {
326 return check_predicate(BreakCommand, method);
327 }
328
329
330 static OracleCommand parse_command_name(const char * line, int* bytes_read) {
331 assert(ARRAY_SIZE(command_names) == OracleCommandCount,
332 "command_names size mismatch");
333
334 *bytes_read = 0;
335 char command[32];
336 int result = sscanf(line, "%32[a-z]%n", command, bytes_read);
337 for (uint i = 0; i < ARRAY_SIZE(command_names); i++) {
338 if (strcmp(command, command_names[i]) == 0) {
339 return (OracleCommand)i;
340 }
341 }
342 return UnknownCommand;
343 }
344
345
346 static void usage() {
347 tty->print_cr(" CompileCommand and the CompilerOracle allows simple control over");
348 tty->print_cr(" what's allowed to be compiled. The standard supported directives");
349 tty->print_cr(" are exclude and compileonly. The exclude directive stops a method");
350 tty->print_cr(" from being compiled and compileonly excludes all methods except for");
351 tty->print_cr(" the ones mentioned by compileonly directives. The basic form of");
352 tty->print_cr(" all commands is a command name followed by the name of the method");
353 tty->print_cr(" in one of two forms: the standard class file format as in");
354 tty->print_cr(" class/name.methodName or the PrintCompilation format");
355 tty->print_cr(" class.name::methodName. The method name can optionally be followed");
356 tty->print_cr(" by a space then the signature of the method in the class file");
357 tty->print_cr(" format. Otherwise the directive applies to all methods with the");
358 tty->print_cr(" same name and class regardless of signature. Leading and trailing");
359 tty->print_cr(" *'s in the class and/or method name allows a small amount of");
360 tty->print_cr(" wildcarding. ");
361 tty->cr();
362 tty->print_cr(" Examples:");
363 tty->cr();
364 tty->print_cr(" exclude java/lang/StringBuffer.append");
365 tty->print_cr(" compileonly java/lang/StringBuffer.toString ()Ljava/lang/String;");
366 tty->print_cr(" exclude java/lang/String*.*");
367 tty->print_cr(" exclude *.toString");
368 }
369
370
371 // The characters allowed in a class or method name. All characters > 0x7f
372 // are allowed in order to handle obfuscated class files (e.g. Volano)
373 #define RANGEBASE "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789$_<>" \
374 "\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f" \
375 "\x90\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f" \
376 "\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf" \
377 "\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf" \
378 "\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf" \
379 "\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf" \
380 "\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee\xef" \
381 "\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff"
382
383 #define RANGE0 "[*" RANGEBASE "]"
384 #define RANGEDOT "[*" RANGEBASE ".]"
385 #define RANGESLASH "[*" RANGEBASE "/]"
386
387
388 // Accept several syntaxes for these patterns
389 // original syntax
390 // cmd java.lang.String foo
391 // PrintCompilation syntax
392 // cmd java.lang.String::foo
393 // VM syntax
394 // cmd java/lang/String[. ]foo
395 //
396
397 static const char* patterns[] = {
398 "%*[ \t]%255" RANGEDOT " " "%255" RANGE0 "%n",
399 "%*[ \t]%255" RANGEDOT "::" "%255" RANGE0 "%n",
400 "%*[ \t]%255" RANGESLASH "%*[ .]" "%255" RANGE0 "%n",
401 };
402
403 static MethodMatcher::Mode check_mode(char name[], const char*& error_msg) {
404 int match = MethodMatcher::Exact;
405 while (name[0] == '*') {
406 match |= MethodMatcher::Suffix;
407 strcpy(name, name + 1);
408 }
409
410 if (strcmp(name, "*") == 0) return MethodMatcher::Any;
411
412 size_t len = strlen(name);
413 while (len > 0 && name[len - 1] == '*') {
414 match |= MethodMatcher::Prefix;
415 name[--len] = '\0';
416 }
417
418 if (strstr(name, "*") != NULL) {
419 error_msg = " Embedded * not allowed";
420 return MethodMatcher::Unknown;
421 }
422 return (MethodMatcher::Mode)match;
423 }
424
425 static bool scan_line(const char * line,
426 char class_name[], MethodMatcher::Mode* c_mode,
427 char method_name[], MethodMatcher::Mode* m_mode,
428 int* bytes_read, const char*& error_msg) {
429 *bytes_read = 0;
430 error_msg = NULL;
431 for (uint i = 0; i < ARRAY_SIZE(patterns); i++) {
432 if (2 == sscanf(line, patterns[i], class_name, method_name, bytes_read)) {
433 *c_mode = check_mode(class_name, error_msg);
434 *m_mode = check_mode(method_name, error_msg);
435 return *c_mode != MethodMatcher::Unknown && *m_mode != MethodMatcher::Unknown;
436 }
437 }
438 return false;
439 }
440
441
442
443 void CompilerOracle::parse_from_line(char* line) {
444 if (line[0] == '\0') return;
445 if (line[0] == '#') return;
446
447 bool have_colon = (strstr(line, "::") != NULL);
448 for (char* lp = line; *lp != '\0'; lp++) {
449 // Allow '.' to separate the class name from the method name.
450 // This is the preferred spelling of methods:
451 // exclude java/lang/String.indexOf(I)I
452 // Allow ',' for spaces (eases command line quoting).
453 // exclude,java/lang/String.indexOf
454 // For backward compatibility, allow space as separator also.
455 // exclude java/lang/String indexOf
456 // exclude,java/lang/String,indexOf
457 // For easy cut-and-paste of method names, allow VM output format
458 // as produced by methodOopDesc::print_short_name:
459 // exclude java.lang.String::indexOf
460 // For simple implementation convenience here, convert them all to space.
461 if (have_colon) {
462 if (*lp == '.') *lp = '/'; // dots build the package prefix
463 if (*lp == ':') *lp = ' ';
464 }
465 if (*lp == ',' || *lp == '.') *lp = ' ';
466 }
467
468 char* original_line = line;
469 int bytes_read;
470 OracleCommand command = parse_command_name(line, &bytes_read);
471 line += bytes_read;
472
473 if (command == QuietCommand) {
474 _quiet = true;
475 return;
476 }
477
478 if (command == HelpCommand) {
479 usage();
480 return;
481 }
482
483 MethodMatcher::Mode c_match = MethodMatcher::Exact;
484 MethodMatcher::Mode m_match = MethodMatcher::Exact;
485 char class_name[256];
486 char method_name[256];
487 char sig[1024];
488 char errorbuf[1024];
489 const char* error_msg = NULL;
490 MethodMatcher* match = NULL;
491
492 if (scan_line(line, class_name, &c_match, method_name, &m_match, &bytes_read, error_msg)) {
493 EXCEPTION_MARK;
494 symbolHandle c_name = oopFactory::new_symbol_handle(class_name, CHECK);
495 symbolHandle m_name = oopFactory::new_symbol_handle(method_name, CHECK);
496 symbolHandle signature;
497
498 line += bytes_read;
499 // there might be a signature following the method.
500 // signatures always begin with ( so match that by hand
501 if (1 == sscanf(line, "%*[ \t](%254[);/" RANGEBASE "]%n", sig + 1, &bytes_read)) {
502 sig[0] = '(';
503 line += bytes_read;
504 signature = oopFactory::new_symbol_handle(sig, CHECK);
505 }
506
507 if (command == OptionCommand) {
508 // Look for trailing options to support
509 // ciMethod::has_option("string") to control features in the
510 // compiler. Multiple options may follow the method name.
511 char option[256];
512 while (sscanf(line, "%*[ \t]%255[a-zA-Z0-9]%n", option, &bytes_read) == 1) {
513 if (match != NULL && !_quiet) {
514 // Print out the last match added
515 tty->print("CompilerOracle: %s ", command_names[command]);
516 match->print();
517 }
518 match = add_option_string(c_name, c_match, m_name, m_match, signature, strdup(option));
519 line += bytes_read;
520 }
521 } else {
522 bytes_read = 0;
523 sscanf(line, "%*[ \t]%n", &bytes_read);
524 if (line[bytes_read] != '\0') {
525 jio_snprintf(errorbuf, sizeof(errorbuf), " Unrecognized text after command: %s", line);
526 error_msg = errorbuf;
527 } else {
528 match = add_predicate(command, c_name, c_match, m_name, m_match, signature);
529 }
530 }
531 }
532
533 if (match != NULL) {
534 if (!_quiet) {
535 tty->print("CompilerOracle: %s ", command_names[command]);
536 match->print();
537 }
538 } else {
539 tty->print_cr("CompilerOracle: unrecognized line");
540 tty->print_cr(" \"%s\"", original_line);
541 if (error_msg != NULL) {
542 tty->print_cr(error_msg);
543 }
544 }
545 }
546
547 static const char* cc_file() {
548 if (CompileCommandFile == NULL)
549 return ".hotspot_compiler";
550 return CompileCommandFile;
551 }
552 bool CompilerOracle::_quiet = false;
553
554 void CompilerOracle::parse_from_file() {
555 FILE* stream = fopen(cc_file(), "rt");
556 if (stream == NULL) return;
557
558 char token[1024];
559 int pos = 0;
560 int c = getc(stream);
561 while(c != EOF) {
562 if (c == '\n') {
563 token[pos++] = '\0';
564 parse_from_line(token);
565 pos = 0;
566 } else {
567 token[pos++] = c;
568 }
569 c = getc(stream);
570 }
571 token[pos++] = '\0';
572 parse_from_line(token);
573
574 fclose(stream);
575 }
576
577 void CompilerOracle::parse_from_string(const char* str, void (*parse_line)(char*)) {
578 char token[1024];
579 int pos = 0;
580 const char* sp = str;
581 int c = *sp++;
582 while (c != '\0') {
583 if (c == '\n') {
584 token[pos++] = '\0';
585 parse_line(token);
586 pos = 0;
587 } else {
588 token[pos++] = c;
589 }
590 c = *sp++;
591 }
592 token[pos++] = '\0';
593 parse_line(token);
594 }
595
596 void CompilerOracle::append_comment_to_file(const char* message) {
597 fileStream stream(fopen(cc_file(), "at"));
598 stream.print("# ");
599 for (int index = 0; message[index] != '\0'; index++) {
600 stream.put(message[index]);
601 if (message[index] == '\n') stream.print("# ");
602 }
603 stream.cr();
604 }
605
606 void CompilerOracle::append_exclude_to_file(methodHandle method) {
607 fileStream stream(fopen(cc_file(), "at"));
608 stream.print("exclude ");
609 Klass::cast(method->method_holder())->name()->print_symbol_on(&stream);
610 stream.print(".");
611 method->name()->print_symbol_on(&stream);
612 method->signature()->print_symbol_on(&stream);
613 stream.cr();
614 stream.cr();
615 }
616
617
618 void compilerOracle_init() {
619 CompilerOracle::parse_from_string(CompileCommand, CompilerOracle::parse_from_line);
620 CompilerOracle::parse_from_string(CompileOnly, CompilerOracle::parse_compile_only);
621 CompilerOracle::parse_from_file();
622 if (lists[PrintCommand] != NULL) {
623 if (PrintAssembly) {
624 warning("CompileCommand and/or .hotspot_compiler file contains 'print' commands, but PrintAssembly is also enabled");
625 } else if (FLAG_IS_DEFAULT(DebugNonSafepoints)) {
626 warning("printing of assembly code is enabled; turning on DebugNonSafepoints to gain additional output");
627 DebugNonSafepoints = true;
628 }
629 }
630 }
631
632
633 void CompilerOracle::parse_compile_only(char * line) {
634 int i;
635 char name[1024];
636 const char* className = NULL;
637 const char* methodName = NULL;
638
639 bool have_colon = (strstr(line, "::") != NULL);
640 char method_sep = have_colon ? ':' : '.';
641
642 if (Verbose) {
643 tty->print_cr(line);
644 }
645
646 ResourceMark rm;
647 while (*line != '\0') {
648 MethodMatcher::Mode c_match = MethodMatcher::Exact;
649 MethodMatcher::Mode m_match = MethodMatcher::Exact;
650
651 for (i = 0;
652 i < 1024 && *line != '\0' && *line != method_sep && *line != ',' && !isspace(*line);
653 line++, i++) {
654 name[i] = *line;
655 if (name[i] == '.') name[i] = '/'; // package prefix uses '/'
656 }
657
658 if (i > 0) {
659 char* newName = NEW_RESOURCE_ARRAY( char, i + 1);
660 if (newName == NULL)
661 return;
662 strncpy(newName, name, i);
663 newName[i] = '\0';
664
665 if (className == NULL) {
666 className = newName;
667 c_match = MethodMatcher::Prefix;
668 } else {
669 methodName = newName;
670 }
671 }
672
673 if (*line == method_sep) {
674 if (className == NULL) {
675 className = "";
676 c_match = MethodMatcher::Any;
677 } else {
678 // foo/bar.blah is an exact match on foo/bar, bar.blah is a suffix match on bar
679 if (strchr(className, '/') != NULL) {
680 c_match = MethodMatcher::Exact;
681 } else {
682 c_match = MethodMatcher::Suffix;
683 }
684 }
685 } else {
686 // got foo or foo/bar
687 if (className == NULL) {
688 ShouldNotReachHere();
689 } else {
690 // got foo or foo/bar
691 if (strchr(className, '/') != NULL) {
692 c_match = MethodMatcher::Prefix;
693 } else if (className[0] == '\0') {
694 c_match = MethodMatcher::Any;
695 } else {
696 c_match = MethodMatcher::Substring;
697 }
698 }
699 }
700
701 // each directive is terminated by , or NUL or . followed by NUL
702 if (*line == ',' || *line == '\0' || (line[0] == '.' && line[1] == '\0')) {
703 if (methodName == NULL) {
704 methodName = "";
705 if (*line != method_sep) {
706 m_match = MethodMatcher::Any;
707 }
708 }
709
710 EXCEPTION_MARK;
711 symbolHandle c_name = oopFactory::new_symbol_handle(className, CHECK);
712 symbolHandle m_name = oopFactory::new_symbol_handle(methodName, CHECK);
713 symbolHandle signature;
714
715 add_predicate(CompileOnlyCommand, c_name, c_match, m_name, m_match, signature);
716 if (PrintVMOptions) {
717 tty->print("CompileOnly: compileonly ");
718 lists[CompileOnlyCommand]->print();
719 }
720
721 className = NULL;
722 methodName = NULL;
723 }
724
725 line = *line == '\0' ? line : line + 1;
726 }
727 }