1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/vm/compiler/compilerOracle.cpp Wed Apr 27 01:25:04 2016 +0800
1.3 @@ -0,0 +1,748 @@
1.4 +/*
1.5 + * Copyright (c) 1998, 2014, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + *
1.26 + */
1.27 +
1.28 +#include "precompiled.hpp"
1.29 +#include "compiler/compilerOracle.hpp"
1.30 +#include "memory/allocation.inline.hpp"
1.31 +#include "memory/oopFactory.hpp"
1.32 +#include "memory/resourceArea.hpp"
1.33 +#include "oops/klass.hpp"
1.34 +#include "oops/method.hpp"
1.35 +#include "oops/oop.inline.hpp"
1.36 +#include "oops/symbol.hpp"
1.37 +#include "runtime/handles.inline.hpp"
1.38 +#include "runtime/jniHandles.hpp"
1.39 +
1.40 +class MethodMatcher : public CHeapObj<mtCompiler> {
1.41 + public:
1.42 + enum Mode {
1.43 + Exact,
1.44 + Prefix = 1,
1.45 + Suffix = 2,
1.46 + Substring = Prefix | Suffix,
1.47 + Any,
1.48 + Unknown = -1
1.49 + };
1.50 +
1.51 + protected:
1.52 + Symbol* _class_name;
1.53 + Symbol* _method_name;
1.54 + Symbol* _signature;
1.55 + Mode _class_mode;
1.56 + Mode _method_mode;
1.57 + MethodMatcher* _next;
1.58 +
1.59 + static bool match(Symbol* candidate, Symbol* match, Mode match_mode);
1.60 +
1.61 + Symbol* class_name() const { return _class_name; }
1.62 + Symbol* method_name() const { return _method_name; }
1.63 + Symbol* signature() const { return _signature; }
1.64 +
1.65 + public:
1.66 + MethodMatcher(Symbol* class_name, Mode class_mode,
1.67 + Symbol* method_name, Mode method_mode,
1.68 + Symbol* signature, MethodMatcher* next);
1.69 + MethodMatcher(Symbol* class_name, Symbol* method_name, MethodMatcher* next);
1.70 +
1.71 + // utility method
1.72 + MethodMatcher* find(methodHandle method) {
1.73 + Symbol* class_name = method->method_holder()->name();
1.74 + Symbol* method_name = method->name();
1.75 + for (MethodMatcher* current = this; current != NULL; current = current->_next) {
1.76 + if (match(class_name, current->class_name(), current->_class_mode) &&
1.77 + match(method_name, current->method_name(), current->_method_mode) &&
1.78 + (current->signature() == NULL || current->signature() == method->signature())) {
1.79 + return current;
1.80 + }
1.81 + }
1.82 + return NULL;
1.83 + }
1.84 +
1.85 + bool match(methodHandle method) {
1.86 + return find(method) != NULL;
1.87 + }
1.88 +
1.89 + MethodMatcher* next() const { return _next; }
1.90 +
1.91 + static void print_symbol(Symbol* h, Mode mode) {
1.92 + ResourceMark rm;
1.93 +
1.94 + if (mode == Suffix || mode == Substring || mode == Any) {
1.95 + tty->print("*");
1.96 + }
1.97 + if (mode != Any) {
1.98 + h->print_symbol_on(tty);
1.99 + }
1.100 + if (mode == Prefix || mode == Substring) {
1.101 + tty->print("*");
1.102 + }
1.103 + }
1.104 +
1.105 + void print_base() {
1.106 + print_symbol(class_name(), _class_mode);
1.107 + tty->print(".");
1.108 + print_symbol(method_name(), _method_mode);
1.109 + if (signature() != NULL) {
1.110 + tty->print(" ");
1.111 + signature()->print_symbol_on(tty);
1.112 + }
1.113 + }
1.114 +
1.115 + virtual void print() {
1.116 + print_base();
1.117 + tty->cr();
1.118 + }
1.119 +};
1.120 +
1.121 +MethodMatcher::MethodMatcher(Symbol* class_name, Symbol* method_name, MethodMatcher* next) {
1.122 + _class_name = class_name;
1.123 + _method_name = method_name;
1.124 + _next = next;
1.125 + _class_mode = MethodMatcher::Exact;
1.126 + _method_mode = MethodMatcher::Exact;
1.127 + _signature = NULL;
1.128 +}
1.129 +
1.130 +
1.131 +MethodMatcher::MethodMatcher(Symbol* class_name, Mode class_mode,
1.132 + Symbol* method_name, Mode method_mode,
1.133 + Symbol* signature, MethodMatcher* next):
1.134 + _class_mode(class_mode)
1.135 + , _method_mode(method_mode)
1.136 + , _next(next)
1.137 + , _class_name(class_name)
1.138 + , _method_name(method_name)
1.139 + , _signature(signature) {
1.140 +}
1.141 +
1.142 +bool MethodMatcher::match(Symbol* candidate, Symbol* match, Mode match_mode) {
1.143 + if (match_mode == Any) {
1.144 + return true;
1.145 + }
1.146 +
1.147 + if (match_mode == Exact) {
1.148 + return candidate == match;
1.149 + }
1.150 +
1.151 + ResourceMark rm;
1.152 + const char * candidate_string = candidate->as_C_string();
1.153 + const char * match_string = match->as_C_string();
1.154 +
1.155 + switch (match_mode) {
1.156 + case Prefix:
1.157 + return strstr(candidate_string, match_string) == candidate_string;
1.158 +
1.159 + case Suffix: {
1.160 + size_t clen = strlen(candidate_string);
1.161 + size_t mlen = strlen(match_string);
1.162 + return clen >= mlen && strcmp(candidate_string + clen - mlen, match_string) == 0;
1.163 + }
1.164 +
1.165 + case Substring:
1.166 + return strstr(candidate_string, match_string) != NULL;
1.167 +
1.168 + default:
1.169 + return false;
1.170 + }
1.171 +}
1.172 +
1.173 +
1.174 +class MethodOptionMatcher: public MethodMatcher {
1.175 + const char * option;
1.176 + public:
1.177 + MethodOptionMatcher(Symbol* class_name, Mode class_mode,
1.178 + Symbol* method_name, Mode method_mode,
1.179 + Symbol* signature, const char * opt, MethodMatcher* next):
1.180 + MethodMatcher(class_name, class_mode, method_name, method_mode, signature, next) {
1.181 + option = opt;
1.182 + }
1.183 +
1.184 + bool match(methodHandle method, const char* opt) {
1.185 + MethodOptionMatcher* current = this;
1.186 + while (current != NULL) {
1.187 + current = (MethodOptionMatcher*)current->find(method);
1.188 + if (current == NULL) {
1.189 + return false;
1.190 + }
1.191 + if (strcmp(current->option, opt) == 0) {
1.192 + return true;
1.193 + }
1.194 + current = current->next();
1.195 + }
1.196 + return false;
1.197 + }
1.198 +
1.199 + MethodOptionMatcher* next() {
1.200 + return (MethodOptionMatcher*)_next;
1.201 + }
1.202 +
1.203 + virtual void print() {
1.204 + print_base();
1.205 + tty->print(" %s", option);
1.206 + tty->cr();
1.207 + }
1.208 +};
1.209 +
1.210 +
1.211 +
1.212 +// this must parallel the command_names below
1.213 +enum OracleCommand {
1.214 + UnknownCommand = -1,
1.215 + OracleFirstCommand = 0,
1.216 + BreakCommand = OracleFirstCommand,
1.217 + PrintCommand,
1.218 + ExcludeCommand,
1.219 + InlineCommand,
1.220 + DontInlineCommand,
1.221 + CompileOnlyCommand,
1.222 + LogCommand,
1.223 + OptionCommand,
1.224 + QuietCommand,
1.225 + HelpCommand,
1.226 + OracleCommandCount
1.227 +};
1.228 +
1.229 +// this must parallel the enum OracleCommand
1.230 +static const char * command_names[] = {
1.231 + "break",
1.232 + "print",
1.233 + "exclude",
1.234 + "inline",
1.235 + "dontinline",
1.236 + "compileonly",
1.237 + "log",
1.238 + "option",
1.239 + "quiet",
1.240 + "help"
1.241 +};
1.242 +
1.243 +class MethodMatcher;
1.244 +static MethodMatcher* lists[OracleCommandCount] = { 0, };
1.245 +
1.246 +
1.247 +static bool check_predicate(OracleCommand command, methodHandle method) {
1.248 + return ((lists[command] != NULL) &&
1.249 + !method.is_null() &&
1.250 + lists[command]->match(method));
1.251 +}
1.252 +
1.253 +
1.254 +static MethodMatcher* add_predicate(OracleCommand command,
1.255 + Symbol* class_name, MethodMatcher::Mode c_mode,
1.256 + Symbol* method_name, MethodMatcher::Mode m_mode,
1.257 + Symbol* signature) {
1.258 + assert(command != OptionCommand, "must use add_option_string");
1.259 + if (command == LogCommand && !LogCompilation && lists[LogCommand] == NULL)
1.260 + tty->print_cr("Warning: +LogCompilation must be enabled in order for individual methods to be logged.");
1.261 + lists[command] = new MethodMatcher(class_name, c_mode, method_name, m_mode, signature, lists[command]);
1.262 + return lists[command];
1.263 +}
1.264 +
1.265 +
1.266 +
1.267 +static MethodMatcher* add_option_string(Symbol* class_name, MethodMatcher::Mode c_mode,
1.268 + Symbol* method_name, MethodMatcher::Mode m_mode,
1.269 + Symbol* signature,
1.270 + const char* option) {
1.271 + lists[OptionCommand] = new MethodOptionMatcher(class_name, c_mode, method_name, m_mode,
1.272 + signature, option, lists[OptionCommand]);
1.273 + return lists[OptionCommand];
1.274 +}
1.275 +
1.276 +
1.277 +bool CompilerOracle::has_option_string(methodHandle method, const char* option) {
1.278 + return lists[OptionCommand] != NULL &&
1.279 + ((MethodOptionMatcher*)lists[OptionCommand])->match(method, option);
1.280 +}
1.281 +
1.282 +
1.283 +bool CompilerOracle::should_exclude(methodHandle method, bool& quietly) {
1.284 + quietly = true;
1.285 + if (lists[ExcludeCommand] != NULL) {
1.286 + if (lists[ExcludeCommand]->match(method)) {
1.287 + quietly = _quiet;
1.288 + return true;
1.289 + }
1.290 + }
1.291 +
1.292 + if (lists[CompileOnlyCommand] != NULL) {
1.293 + return !lists[CompileOnlyCommand]->match(method);
1.294 + }
1.295 + return false;
1.296 +}
1.297 +
1.298 +
1.299 +bool CompilerOracle::should_inline(methodHandle method) {
1.300 + return (check_predicate(InlineCommand, method));
1.301 +}
1.302 +
1.303 +
1.304 +bool CompilerOracle::should_not_inline(methodHandle method) {
1.305 + return (check_predicate(DontInlineCommand, method));
1.306 +}
1.307 +
1.308 +
1.309 +bool CompilerOracle::should_print(methodHandle method) {
1.310 + return (check_predicate(PrintCommand, method));
1.311 +}
1.312 +
1.313 +
1.314 +bool CompilerOracle::should_log(methodHandle method) {
1.315 + if (!LogCompilation) return false;
1.316 + if (lists[LogCommand] == NULL) return true; // by default, log all
1.317 + return (check_predicate(LogCommand, method));
1.318 +}
1.319 +
1.320 +
1.321 +bool CompilerOracle::should_break_at(methodHandle method) {
1.322 + return check_predicate(BreakCommand, method);
1.323 +}
1.324 +
1.325 +
1.326 +static OracleCommand parse_command_name(const char * line, int* bytes_read) {
1.327 + assert(ARRAY_SIZE(command_names) == OracleCommandCount,
1.328 + "command_names size mismatch");
1.329 +
1.330 + *bytes_read = 0;
1.331 + char command[33];
1.332 + int result = sscanf(line, "%32[a-z]%n", command, bytes_read);
1.333 + for (uint i = 0; i < ARRAY_SIZE(command_names); i++) {
1.334 + if (strcmp(command, command_names[i]) == 0) {
1.335 + return (OracleCommand)i;
1.336 + }
1.337 + }
1.338 + return UnknownCommand;
1.339 +}
1.340 +
1.341 +
1.342 +static void usage() {
1.343 + tty->print_cr(" CompileCommand and the CompilerOracle allows simple control over");
1.344 + tty->print_cr(" what's allowed to be compiled. The standard supported directives");
1.345 + tty->print_cr(" are exclude and compileonly. The exclude directive stops a method");
1.346 + tty->print_cr(" from being compiled and compileonly excludes all methods except for");
1.347 + tty->print_cr(" the ones mentioned by compileonly directives. The basic form of");
1.348 + tty->print_cr(" all commands is a command name followed by the name of the method");
1.349 + tty->print_cr(" in one of two forms: the standard class file format as in");
1.350 + tty->print_cr(" class/name.methodName or the PrintCompilation format");
1.351 + tty->print_cr(" class.name::methodName. The method name can optionally be followed");
1.352 + tty->print_cr(" by a space then the signature of the method in the class file");
1.353 + tty->print_cr(" format. Otherwise the directive applies to all methods with the");
1.354 + tty->print_cr(" same name and class regardless of signature. Leading and trailing");
1.355 + tty->print_cr(" *'s in the class and/or method name allows a small amount of");
1.356 + tty->print_cr(" wildcarding. ");
1.357 + tty->cr();
1.358 + tty->print_cr(" Examples:");
1.359 + tty->cr();
1.360 + tty->print_cr(" exclude java/lang/StringBuffer.append");
1.361 + tty->print_cr(" compileonly java/lang/StringBuffer.toString ()Ljava/lang/String;");
1.362 + tty->print_cr(" exclude java/lang/String*.*");
1.363 + tty->print_cr(" exclude *.toString");
1.364 +}
1.365 +
1.366 +
1.367 +// The characters allowed in a class or method name. All characters > 0x7f
1.368 +// are allowed in order to handle obfuscated class files (e.g. Volano)
1.369 +#define RANGEBASE "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789$_<>" \
1.370 + "\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f" \
1.371 + "\x90\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f" \
1.372 + "\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf" \
1.373 + "\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf" \
1.374 + "\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf" \
1.375 + "\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf" \
1.376 + "\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee\xef" \
1.377 + "\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff"
1.378 +
1.379 +#define RANGE0 "[*" RANGEBASE "]"
1.380 +#define RANGEDOT "[*" RANGEBASE ".]"
1.381 +#define RANGESLASH "[*" RANGEBASE "/]"
1.382 +
1.383 +
1.384 +// Accept several syntaxes for these patterns
1.385 +// original syntax
1.386 +// cmd java.lang.String foo
1.387 +// PrintCompilation syntax
1.388 +// cmd java.lang.String::foo
1.389 +// VM syntax
1.390 +// cmd java/lang/String[. ]foo
1.391 +//
1.392 +
1.393 +static const char* patterns[] = {
1.394 + "%*[ \t]%255" RANGEDOT " " "%255" RANGE0 "%n",
1.395 + "%*[ \t]%255" RANGEDOT "::" "%255" RANGE0 "%n",
1.396 + "%*[ \t]%255" RANGESLASH "%*[ .]" "%255" RANGE0 "%n",
1.397 +};
1.398 +
1.399 +static MethodMatcher::Mode check_mode(char name[], const char*& error_msg) {
1.400 + int match = MethodMatcher::Exact;
1.401 + while (name[0] == '*') {
1.402 + match |= MethodMatcher::Suffix;
1.403 + strcpy(name, name + 1);
1.404 + }
1.405 +
1.406 + if (strcmp(name, "*") == 0) return MethodMatcher::Any;
1.407 +
1.408 + size_t len = strlen(name);
1.409 + while (len > 0 && name[len - 1] == '*') {
1.410 + match |= MethodMatcher::Prefix;
1.411 + name[--len] = '\0';
1.412 + }
1.413 +
1.414 + if (strstr(name, "*") != NULL) {
1.415 + error_msg = " Embedded * not allowed";
1.416 + return MethodMatcher::Unknown;
1.417 + }
1.418 + return (MethodMatcher::Mode)match;
1.419 +}
1.420 +
1.421 +static bool scan_line(const char * line,
1.422 + char class_name[], MethodMatcher::Mode* c_mode,
1.423 + char method_name[], MethodMatcher::Mode* m_mode,
1.424 + int* bytes_read, const char*& error_msg) {
1.425 + *bytes_read = 0;
1.426 + error_msg = NULL;
1.427 + for (uint i = 0; i < ARRAY_SIZE(patterns); i++) {
1.428 + if (2 == sscanf(line, patterns[i], class_name, method_name, bytes_read)) {
1.429 + *c_mode = check_mode(class_name, error_msg);
1.430 + *m_mode = check_mode(method_name, error_msg);
1.431 + return *c_mode != MethodMatcher::Unknown && *m_mode != MethodMatcher::Unknown;
1.432 + }
1.433 + }
1.434 + return false;
1.435 +}
1.436 +
1.437 +
1.438 +
1.439 +void CompilerOracle::parse_from_line(char* line) {
1.440 + if (line[0] == '\0') return;
1.441 + if (line[0] == '#') return;
1.442 +
1.443 + bool have_colon = (strstr(line, "::") != NULL);
1.444 + for (char* lp = line; *lp != '\0'; lp++) {
1.445 + // Allow '.' to separate the class name from the method name.
1.446 + // This is the preferred spelling of methods:
1.447 + // exclude java/lang/String.indexOf(I)I
1.448 + // Allow ',' for spaces (eases command line quoting).
1.449 + // exclude,java/lang/String.indexOf
1.450 + // For backward compatibility, allow space as separator also.
1.451 + // exclude java/lang/String indexOf
1.452 + // exclude,java/lang/String,indexOf
1.453 + // For easy cut-and-paste of method names, allow VM output format
1.454 + // as produced by Method::print_short_name:
1.455 + // exclude java.lang.String::indexOf
1.456 + // For simple implementation convenience here, convert them all to space.
1.457 + if (have_colon) {
1.458 + if (*lp == '.') *lp = '/'; // dots build the package prefix
1.459 + if (*lp == ':') *lp = ' ';
1.460 + }
1.461 + if (*lp == ',' || *lp == '.') *lp = ' ';
1.462 + }
1.463 +
1.464 + char* original_line = line;
1.465 + int bytes_read;
1.466 + OracleCommand command = parse_command_name(line, &bytes_read);
1.467 + line += bytes_read;
1.468 +
1.469 + if (command == UnknownCommand) {
1.470 + tty->print_cr("CompilerOracle: unrecognized line");
1.471 + tty->print_cr(" \"%s\"", original_line);
1.472 + return;
1.473 + }
1.474 +
1.475 + if (command == QuietCommand) {
1.476 + _quiet = true;
1.477 + return;
1.478 + }
1.479 +
1.480 + if (command == HelpCommand) {
1.481 + usage();
1.482 + return;
1.483 + }
1.484 +
1.485 + MethodMatcher::Mode c_match = MethodMatcher::Exact;
1.486 + MethodMatcher::Mode m_match = MethodMatcher::Exact;
1.487 + char class_name[256];
1.488 + char method_name[256];
1.489 + char sig[1024];
1.490 + char errorbuf[1024];
1.491 + const char* error_msg = NULL;
1.492 + MethodMatcher* match = NULL;
1.493 +
1.494 + if (scan_line(line, class_name, &c_match, method_name, &m_match, &bytes_read, error_msg)) {
1.495 + EXCEPTION_MARK;
1.496 + Symbol* c_name = SymbolTable::new_symbol(class_name, CHECK);
1.497 + Symbol* m_name = SymbolTable::new_symbol(method_name, CHECK);
1.498 + Symbol* signature = NULL;
1.499 +
1.500 + line += bytes_read;
1.501 + // there might be a signature following the method.
1.502 + // signatures always begin with ( so match that by hand
1.503 + if (1 == sscanf(line, "%*[ \t](%254[[);/" RANGEBASE "]%n", sig + 1, &bytes_read)) {
1.504 + sig[0] = '(';
1.505 + line += bytes_read;
1.506 + signature = SymbolTable::new_symbol(sig, CHECK);
1.507 + }
1.508 +
1.509 + if (command == OptionCommand) {
1.510 + // Look for trailing options to support
1.511 + // ciMethod::has_option("string") to control features in the
1.512 + // compiler. Multiple options may follow the method name.
1.513 + char option[256];
1.514 + while (sscanf(line, "%*[ \t]%255[a-zA-Z0-9]%n", option, &bytes_read) == 1) {
1.515 + if (match != NULL && !_quiet) {
1.516 + // Print out the last match added
1.517 + tty->print("CompilerOracle: %s ", command_names[command]);
1.518 + match->print();
1.519 + }
1.520 + match = add_option_string(c_name, c_match, m_name, m_match, signature, strdup(option));
1.521 + line += bytes_read;
1.522 + }
1.523 + } else {
1.524 + bytes_read = 0;
1.525 + sscanf(line, "%*[ \t]%n", &bytes_read);
1.526 + if (line[bytes_read] != '\0') {
1.527 + jio_snprintf(errorbuf, sizeof(errorbuf), " Unrecognized text after command: %s", line);
1.528 + error_msg = errorbuf;
1.529 + } else {
1.530 + match = add_predicate(command, c_name, c_match, m_name, m_match, signature);
1.531 + }
1.532 + }
1.533 + }
1.534 +
1.535 + if (match != NULL) {
1.536 + if (!_quiet) {
1.537 + ResourceMark rm;
1.538 + tty->print("CompilerOracle: %s ", command_names[command]);
1.539 + match->print();
1.540 + }
1.541 + } else {
1.542 + tty->print_cr("CompilerOracle: unrecognized line");
1.543 + tty->print_cr(" \"%s\"", original_line);
1.544 + if (error_msg != NULL) {
1.545 + tty->print_cr("%s", error_msg);
1.546 + }
1.547 + }
1.548 +}
1.549 +
1.550 +static const char* default_cc_file = ".hotspot_compiler";
1.551 +
1.552 +static const char* cc_file() {
1.553 +#ifdef ASSERT
1.554 + if (CompileCommandFile == NULL)
1.555 + return default_cc_file;
1.556 +#endif
1.557 + return CompileCommandFile;
1.558 +}
1.559 +
1.560 +bool CompilerOracle::has_command_file() {
1.561 + return cc_file() != NULL;
1.562 +}
1.563 +
1.564 +bool CompilerOracle::_quiet = false;
1.565 +
1.566 +void CompilerOracle::parse_from_file() {
1.567 + assert(has_command_file(), "command file must be specified");
1.568 + FILE* stream = fopen(cc_file(), "rt");
1.569 + if (stream == NULL) return;
1.570 +
1.571 + char token[1024];
1.572 + int pos = 0;
1.573 + int c = getc(stream);
1.574 + while(c != EOF && pos < (int)(sizeof(token)-1)) {
1.575 + if (c == '\n') {
1.576 + token[pos++] = '\0';
1.577 + parse_from_line(token);
1.578 + pos = 0;
1.579 + } else {
1.580 + token[pos++] = c;
1.581 + }
1.582 + c = getc(stream);
1.583 + }
1.584 + token[pos++] = '\0';
1.585 + parse_from_line(token);
1.586 +
1.587 + fclose(stream);
1.588 +}
1.589 +
1.590 +void CompilerOracle::parse_from_string(const char* str, void (*parse_line)(char*)) {
1.591 + char token[1024];
1.592 + int pos = 0;
1.593 + const char* sp = str;
1.594 + int c = *sp++;
1.595 + while (c != '\0' && pos < (int)(sizeof(token)-1)) {
1.596 + if (c == '\n') {
1.597 + token[pos++] = '\0';
1.598 + parse_line(token);
1.599 + pos = 0;
1.600 + } else {
1.601 + token[pos++] = c;
1.602 + }
1.603 + c = *sp++;
1.604 + }
1.605 + token[pos++] = '\0';
1.606 + parse_line(token);
1.607 +}
1.608 +
1.609 +void CompilerOracle::append_comment_to_file(const char* message) {
1.610 + assert(has_command_file(), "command file must be specified");
1.611 + fileStream stream(fopen(cc_file(), "at"));
1.612 + stream.print("# ");
1.613 + for (int index = 0; message[index] != '\0'; index++) {
1.614 + stream.put(message[index]);
1.615 + if (message[index] == '\n') stream.print("# ");
1.616 + }
1.617 + stream.cr();
1.618 +}
1.619 +
1.620 +void CompilerOracle::append_exclude_to_file(methodHandle method) {
1.621 + assert(has_command_file(), "command file must be specified");
1.622 + fileStream stream(fopen(cc_file(), "at"));
1.623 + stream.print("exclude ");
1.624 + method->method_holder()->name()->print_symbol_on(&stream);
1.625 + stream.print(".");
1.626 + method->name()->print_symbol_on(&stream);
1.627 + method->signature()->print_symbol_on(&stream);
1.628 + stream.cr();
1.629 + stream.cr();
1.630 +}
1.631 +
1.632 +
1.633 +void compilerOracle_init() {
1.634 + CompilerOracle::parse_from_string(CompileCommand, CompilerOracle::parse_from_line);
1.635 + CompilerOracle::parse_from_string(CompileOnly, CompilerOracle::parse_compile_only);
1.636 + if (CompilerOracle::has_command_file()) {
1.637 + CompilerOracle::parse_from_file();
1.638 + } else {
1.639 + struct stat buf;
1.640 + if (os::stat(default_cc_file, &buf) == 0) {
1.641 + warning("%s file is present but has been ignored. "
1.642 + "Run with -XX:CompileCommandFile=%s to load the file.",
1.643 + default_cc_file, default_cc_file);
1.644 + }
1.645 + }
1.646 + if (lists[PrintCommand] != NULL) {
1.647 + if (PrintAssembly) {
1.648 + warning("CompileCommand and/or %s file contains 'print' commands, but PrintAssembly is also enabled", default_cc_file);
1.649 + } else if (FLAG_IS_DEFAULT(DebugNonSafepoints)) {
1.650 + warning("printing of assembly code is enabled; turning on DebugNonSafepoints to gain additional output");
1.651 + DebugNonSafepoints = true;
1.652 + }
1.653 + }
1.654 +}
1.655 +
1.656 +
1.657 +void CompilerOracle::parse_compile_only(char * line) {
1.658 + int i;
1.659 + char name[1024];
1.660 + const char* className = NULL;
1.661 + const char* methodName = NULL;
1.662 +
1.663 + bool have_colon = (strstr(line, "::") != NULL);
1.664 + char method_sep = have_colon ? ':' : '.';
1.665 +
1.666 + if (Verbose) {
1.667 + tty->print_cr("%s", line);
1.668 + }
1.669 +
1.670 + ResourceMark rm;
1.671 + while (*line != '\0') {
1.672 + MethodMatcher::Mode c_match = MethodMatcher::Exact;
1.673 + MethodMatcher::Mode m_match = MethodMatcher::Exact;
1.674 +
1.675 + for (i = 0;
1.676 + i < 1024 && *line != '\0' && *line != method_sep && *line != ',' && !isspace(*line);
1.677 + line++, i++) {
1.678 + name[i] = *line;
1.679 + if (name[i] == '.') name[i] = '/'; // package prefix uses '/'
1.680 + }
1.681 +
1.682 + if (i > 0) {
1.683 + char* newName = NEW_RESOURCE_ARRAY( char, i + 1);
1.684 + if (newName == NULL)
1.685 + return;
1.686 + strncpy(newName, name, i);
1.687 + newName[i] = '\0';
1.688 +
1.689 + if (className == NULL) {
1.690 + className = newName;
1.691 + c_match = MethodMatcher::Prefix;
1.692 + } else {
1.693 + methodName = newName;
1.694 + }
1.695 + }
1.696 +
1.697 + if (*line == method_sep) {
1.698 + if (className == NULL) {
1.699 + className = "";
1.700 + c_match = MethodMatcher::Any;
1.701 + } else {
1.702 + // foo/bar.blah is an exact match on foo/bar, bar.blah is a suffix match on bar
1.703 + if (strchr(className, '/') != NULL) {
1.704 + c_match = MethodMatcher::Exact;
1.705 + } else {
1.706 + c_match = MethodMatcher::Suffix;
1.707 + }
1.708 + }
1.709 + } else {
1.710 + // got foo or foo/bar
1.711 + if (className == NULL) {
1.712 + ShouldNotReachHere();
1.713 + } else {
1.714 + // got foo or foo/bar
1.715 + if (strchr(className, '/') != NULL) {
1.716 + c_match = MethodMatcher::Prefix;
1.717 + } else if (className[0] == '\0') {
1.718 + c_match = MethodMatcher::Any;
1.719 + } else {
1.720 + c_match = MethodMatcher::Substring;
1.721 + }
1.722 + }
1.723 + }
1.724 +
1.725 + // each directive is terminated by , or NUL or . followed by NUL
1.726 + if (*line == ',' || *line == '\0' || (line[0] == '.' && line[1] == '\0')) {
1.727 + if (methodName == NULL) {
1.728 + methodName = "";
1.729 + if (*line != method_sep) {
1.730 + m_match = MethodMatcher::Any;
1.731 + }
1.732 + }
1.733 +
1.734 + EXCEPTION_MARK;
1.735 + Symbol* c_name = SymbolTable::new_symbol(className, CHECK);
1.736 + Symbol* m_name = SymbolTable::new_symbol(methodName, CHECK);
1.737 + Symbol* signature = NULL;
1.738 +
1.739 + add_predicate(CompileOnlyCommand, c_name, c_match, m_name, m_match, signature);
1.740 + if (PrintVMOptions) {
1.741 + tty->print("CompileOnly: compileonly ");
1.742 + lists[CompileOnlyCommand]->print();
1.743 + }
1.744 +
1.745 + className = NULL;
1.746 + methodName = NULL;
1.747 + }
1.748 +
1.749 + line = *line == '\0' ? line : line + 1;
1.750 + }
1.751 +}
