compilerOracle.cpp revision 3465:d2a62e0f25eb
16059Samurai/* 26059Samurai * Copyright (c) 1998, 2011, Oracle and/or its affiliates. All rights reserved. 36059Samurai * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 46059Samurai * 56059Samurai * This code is free software; you can redistribute it and/or modify it 66059Samurai * under the terms of the GNU General Public License version 2 only, as 76059Samurai * published by the Free Software Foundation. 86059Samurai * 96059Samurai * This code is distributed in the hope that it will be useful, but WITHOUT 106059Samurai * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 116059Samurai * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 126059Samurai * version 2 for more details (a copy is included in the LICENSE file that 136059Samurai * accompanied this code). 146059Samurai * 156059Samurai * You should have received a copy of the GNU General Public License version 166059Samurai * 2 along with this work; if not, write to the Free Software Foundation, 176059Samurai * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 186059Samurai * 196059Samurai * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 2036285Sbrian * or visit www.oracle.com if you need additional information or have any 218857Srgrimes * questions. 226059Samurai * 2330715Sbrian */ 2436285Sbrian 256059Samurai#include "precompiled.hpp" 2631176Sbrian#include "compiler/compilerOracle.hpp" 2730715Sbrian#include "memory/allocation.inline.hpp" 2830715Sbrian#include "memory/oopFactory.hpp" 2930715Sbrian#include "memory/resourceArea.hpp" 3030715Sbrian#include "oops/klass.hpp" 3131176Sbrian#include "oops/methodOop.hpp" 3236285Sbrian#include "oops/oop.inline.hpp" 3336285Sbrian#include "oops/symbol.hpp" 3436285Sbrian#include "runtime/handles.inline.hpp" 3520287Swollman#include "runtime/jniHandles.hpp" 3620287Swollman 3730715Sbrianclass MethodMatcher : public CHeapObj<mtCompiler> { 386059Samurai public: 396059Samurai enum Mode { 4030715Sbrian Exact, 4136285Sbrian Prefix = 1, 4220287Swollman Suffix = 2, 4331343Sbrian Substring = Prefix | Suffix, 4430715Sbrian Any, 459439Samurai Unknown = -1 4631070Sbrian }; 4736285Sbrian 4836285Sbrian protected: 4936285Sbrian Symbol* _class_name; 5036285Sbrian Symbol* _method_name; 5136285Sbrian Symbol* _signature; 5236285Sbrian Mode _class_mode; 5336285Sbrian Mode _method_mode; 5436285Sbrian MethodMatcher* _next; 5536285Sbrian 5636285Sbrian static bool match(Symbol* candidate, Symbol* match, Mode match_mode); 5731690Sbrian 5836285Sbrian Symbol* class_name() const { return _class_name; } 5936285Sbrian Symbol* method_name() const { return _method_name; } 6036285Sbrian Symbol* signature() const { return _signature; } 6136285Sbrian 6230715Sbrian public: 6336285Sbrian MethodMatcher(Symbol* class_name, Mode class_mode, 646059Samurai Symbol* method_name, Mode method_mode, 656059Samurai Symbol* signature, MethodMatcher* next); 6636285Sbrian MethodMatcher(Symbol* class_name, Symbol* method_name, MethodMatcher* next); 6736285Sbrian 686059Samurai // utility method 6931343Sbrian MethodMatcher* find(methodHandle method) { 7031176Sbrian Symbol* class_name = Klass::cast(method->method_holder())->name(); 7131176Sbrian Symbol* method_name = method->name(); 7231176Sbrian for (MethodMatcher* current = this; current != NULL; current = current->_next) { 736059Samurai if (match(class_name, current->class_name(), current->_class_mode) && 7431176Sbrian match(method_name, current->method_name(), current->_method_mode) && 7531176Sbrian (current->signature() == NULL || current->signature() == method->signature())) { 7631176Sbrian return current; 7731541Sbrian } 7831176Sbrian } 7931541Sbrian return NULL; 8031176Sbrian } 8131541Sbrian 8231176Sbrian bool match(methodHandle method) { 8331176Sbrian return find(method) != NULL; 8431176Sbrian } 8531176Sbrian 8631176Sbrian MethodMatcher* next() const { return _next; } 8731176Sbrian 8831176Sbrian static void print_symbol(Symbol* h, Mode mode) { 8931176Sbrian ResourceMark rm; 9031176Sbrian 9131176Sbrian if (mode == Suffix || mode == Substring || mode == Any) { 9231176Sbrian tty->print("*"); 9331176Sbrian } 9431176Sbrian if (mode != Any) { 9531176Sbrian h->print_symbol_on(tty); 9631176Sbrian } 9731176Sbrian if (mode == Prefix || mode == Substring) { 9831791Sbrian tty->print("*"); 9931176Sbrian } 10031176Sbrian } 10131176Sbrian 10231176Sbrian void print_base() { 10331176Sbrian print_symbol(class_name(), _class_mode); 10431176Sbrian tty->print("."); 10531176Sbrian print_symbol(method_name(), _method_mode); 10631176Sbrian if (signature() != NULL) { 10731176Sbrian tty->print(" "); 10831176Sbrian signature()->print_symbol_on(tty); 10931176Sbrian } 11031176Sbrian } 11131541Sbrian 11231541Sbrian virtual void print() { 11334536Sbrian print_base(); 11434536Sbrian tty->cr(); 11531962Sbrian } 11631541Sbrian}; 11731541Sbrian 11831541SbrianMethodMatcher::MethodMatcher(Symbol* class_name, Symbol* method_name, MethodMatcher* next) { 11931541Sbrian _class_name = class_name; 12031541Sbrian _method_name = method_name; 12131541Sbrian _next = next; 12231541Sbrian _class_mode = MethodMatcher::Exact; 12331541Sbrian _method_mode = MethodMatcher::Exact; 12431791Sbrian _signature = NULL; 12534536Sbrian} 12631541Sbrian 12736285Sbrian 12831541SbrianMethodMatcher::MethodMatcher(Symbol* class_name, Mode class_mode, 12931541Sbrian Symbol* method_name, Mode method_mode, 13031176Sbrian Symbol* signature, MethodMatcher* next): 13131176Sbrian _class_mode(class_mode) 13231176Sbrian , _method_mode(method_mode) 13331176Sbrian , _next(next) 13431541Sbrian , _class_name(class_name) 13531176Sbrian , _method_name(method_name) 13626516Sbrian , _signature(signature) { 13731176Sbrian} 13836285Sbrian 1396059Samuraibool MethodMatcher::match(Symbol* candidate, Symbol* match, Mode match_mode) { 1406059Samurai if (match_mode == Any) { 14132663Sbrian return true; 14231176Sbrian } 14328679Sbrian 14431176Sbrian if (match_mode == Exact) { 14531176Sbrian return candidate == match; 14631176Sbrian } 14731176Sbrian 14831176Sbrian ResourceMark rm; 14931176Sbrian const char * candidate_string = candidate->as_C_string(); 15031176Sbrian const char * match_string = match->as_C_string(); 15131176Sbrian 15231176Sbrian switch (match_mode) { 15331176Sbrian case Prefix: 15431176Sbrian return strstr(candidate_string, match_string) == candidate_string; 15531176Sbrian 15631176Sbrian case Suffix: { 15731176Sbrian size_t clen = strlen(candidate_string); 15831176Sbrian size_t mlen = strlen(match_string); 15931739Sbrian return clen >= mlen && strcmp(candidate_string + clen - mlen, match_string) == 0; 16031176Sbrian } 16131739Sbrian 16231739Sbrian case Substring: 16331176Sbrian return strstr(candidate_string, match_string) != NULL; 16431739Sbrian 16531739Sbrian default: 16631176Sbrian return false; 16731739Sbrian } 16831739Sbrian} 16931176Sbrian 17031176Sbrian 17131176Sbrianclass MethodOptionMatcher: public MethodMatcher { 1726059Samurai const char * option; 1736059Samurai public: 17431739Sbrian MethodOptionMatcher(Symbol* class_name, Mode class_mode, 17531739Sbrian Symbol* method_name, Mode method_mode, 17631739Sbrian Symbol* signature, const char * opt, MethodMatcher* next): 17731739Sbrian MethodMatcher(class_name, class_mode, method_name, method_mode, signature, next) { 1786059Samurai option = opt; 17936285Sbrian } 1806059Samurai 18136285Sbrian bool match(methodHandle method, const char* opt) { 18236285Sbrian MethodOptionMatcher* current = this; 1836059Samurai while (current != NULL) { 18436285Sbrian current = (MethodOptionMatcher*)current->find(method); 18536285Sbrian if (current == NULL) { 18631827Sbrian return false; 18736285Sbrian } 18836285Sbrian if (strcmp(current->option, opt) == 0) { 18936285Sbrian return true; 19036285Sbrian } 19136285Sbrian current = current->next(); 1926059Samurai } 1936059Samurai return false; 19432616Sbrian } 19531176Sbrian 19631176Sbrian MethodOptionMatcher* next() { 19732425Sbrian return (MethodOptionMatcher*)_next; 19831354Sbrian } 19931176Sbrian 20031176Sbrian virtual void print() { 20132425Sbrian print_base(); 20232021Sbrian tty->print(" %s", option); 20331176Sbrian tty->cr(); 20431176Sbrian } 20531176Sbrian}; 20631176Sbrian 20731176Sbrian 20831176Sbrian 20931176Sbrian// this must parallel the command_names below 21031176Sbrianenum OracleCommand { 21131176Sbrian UnknownCommand = -1, 21231176Sbrian OracleFirstCommand = 0, 21331176Sbrian BreakCommand = OracleFirstCommand, 21431176Sbrian PrintCommand, 21536285Sbrian ExcludeCommand, 21631176Sbrian InlineCommand, 21731176Sbrian DontInlineCommand, 21831176Sbrian CompileOnlyCommand, 21931176Sbrian LogCommand, 22031176Sbrian OptionCommand, 22131176Sbrian QuietCommand, 22231176Sbrian HelpCommand, 22331176Sbrian OracleCommandCount 22431176Sbrian}; 22531176Sbrian 22632425Sbrian// this must parallel the enum OracleCommand 22731354Sbrianstatic const char * command_names[] = { 22831176Sbrian "break", 22931176Sbrian "print", 23032425Sbrian "exclude", 23132425Sbrian "inline", 23232425Sbrian "dontinline", 23332425Sbrian "compileonly", 23432425Sbrian "log", 23532425Sbrian "option", 23632425Sbrian "quiet", 23732425Sbrian "help" 23832425Sbrian}; 23936285Sbrian 24032425Sbrianstatic const char * command_name(OracleCommand command) { 24132425Sbrian if (command < OracleFirstCommand || command >= OracleCommandCount) { 24232425Sbrian return "unknown command"; 24332425Sbrian } 24432425Sbrian return command_names[command]; 24532425Sbrian} 24632425Sbrian 24732425Sbrianclass MethodMatcher; 24832425Sbrianstatic MethodMatcher* lists[OracleCommandCount] = { 0, }; 24932425Sbrian 25032425Sbrian 25132425Sbrianstatic bool check_predicate(OracleCommand command, methodHandle method) { 25236285Sbrian return ((lists[command] != NULL) && 25336285Sbrian !method.is_null() && 25431354Sbrian lists[command]->match(method)); 25531176Sbrian} 25631176Sbrian 25731176Sbrian 25831176Sbrianstatic MethodMatcher* add_predicate(OracleCommand command, 25936285Sbrian Symbol* class_name, MethodMatcher::Mode c_mode, 26031354Sbrian Symbol* method_name, MethodMatcher::Mode m_mode, 26131354Sbrian Symbol* signature) { 26236285Sbrian assert(command != OptionCommand, "must use add_option_string"); 26331354Sbrian if (command == LogCommand && !LogCompilation && lists[LogCommand] == NULL) 26432425Sbrian tty->print_cr("Warning: +LogCompilation must be enabled in order for individual methods to be logged."); 26536285Sbrian lists[command] = new MethodMatcher(class_name, c_mode, method_name, m_mode, signature, lists[command]); 26631354Sbrian return lists[command]; 26731354Sbrian} 26831354Sbrian 26932425Sbrian 27031176Sbrian 27131354Sbrianstatic MethodMatcher* add_option_string(Symbol* class_name, MethodMatcher::Mode c_mode, 27231354Sbrian Symbol* method_name, MethodMatcher::Mode m_mode, 27331176Sbrian Symbol* signature, 27431176Sbrian const char* option) { 2756059Samurai lists[OptionCommand] = new MethodOptionMatcher(class_name, c_mode, method_name, m_mode, 27636285Sbrian signature, option, lists[OptionCommand]); 2776059Samurai return lists[OptionCommand]; 2786059Samurai} 27931176Sbrian 28031176Sbrian 28132021Sbrianbool CompilerOracle::has_option_string(methodHandle method, const char* option) { 2826735Samurai return lists[OptionCommand] != NULL && 2836059Samurai ((MethodOptionMatcher*)lists[OptionCommand])->match(method, option); 2846059Samurai} 2856059Samurai 2866735Samurai 2876735Samuraibool CompilerOracle::should_exclude(methodHandle method, bool& quietly) { 2886059Samurai quietly = true; 2896735Samurai if (lists[ExcludeCommand] != NULL) { 2906735Samurai if (lists[ExcludeCommand]->match(method)) { 29136285Sbrian quietly = _quiet; 29228679Sbrian return true; 2936735Samurai } 2946059Samurai } 29528679Sbrian 2966059Samurai if (lists[CompileOnlyCommand] != NULL) { 2976059Samurai return !lists[CompileOnlyCommand]->match(method); 29828679Sbrian } 2996735Samurai return false; 30036285Sbrian} 30118885Sjkh 30228679Sbrian 3036735Samuraibool CompilerOracle::should_inline(methodHandle method) { 3046059Samurai return (check_predicate(InlineCommand, method)); 3056059Samurai} 30636285Sbrian 30736285Sbrian 3086059Samuraibool CompilerOracle::should_not_inline(methodHandle method) { 30928679Sbrian return (check_predicate(DontInlineCommand, method)); 31031176Sbrian} 31131176Sbrian 31231176Sbrian 31331176Sbrianbool CompilerOracle::should_print(methodHandle method) { 31431176Sbrian return (check_predicate(PrintCommand, method)); 31531176Sbrian} 31631176Sbrian 31731176Sbrian 31831176Sbrianbool CompilerOracle::should_log(methodHandle method) { 31931176Sbrian if (!LogCompilation) return false; 32031176Sbrian if (lists[LogCommand] == NULL) return true; // by default, log all 32131176Sbrian return (check_predicate(LogCommand, method)); 32231176Sbrian} 32331176Sbrian 32431176Sbrian 32531176Sbrianbool CompilerOracle::should_break_at(methodHandle method) { 32631176Sbrian return check_predicate(BreakCommand, method); 32731176Sbrian} 32831176Sbrian 32931176Sbrian 33036285Sbrianstatic OracleCommand parse_command_name(const char * line, int* bytes_read) { 33136285Sbrian assert(ARRAY_SIZE(command_names) == OracleCommandCount, 33231176Sbrian "command_names size mismatch"); 33336285Sbrian 33436285Sbrian *bytes_read = 0; 3356059Samurai char command[33]; 33618885Sjkh int result = sscanf(line, "%32[a-z]%n", command, bytes_read); 33726516Sbrian for (uint i = 0; i < ARRAY_SIZE(command_names); i++) { 3386059Samurai if (strcmp(command, command_names[i]) == 0) { 3396059Samurai return (OracleCommand)i; 3406059Samurai } 3416059Samurai } 3426059Samurai return UnknownCommand; 3436059Samurai} 34436285Sbrian 3456059Samurai 3466059Samuraistatic void usage() { 3476059Samurai tty->print_cr(" CompileCommand and the CompilerOracle allows simple control over"); 34831598Sbrian tty->print_cr(" what's allowed to be compiled. The standard supported directives"); 34932021Sbrian tty->print_cr(" are exclude and compileonly. The exclude directive stops a method"); 35032021Sbrian tty->print_cr(" from being compiled and compileonly excludes all methods except for"); 3516059Samurai tty->print_cr(" the ones mentioned by compileonly directives. The basic form of"); 3526735Samurai tty->print_cr(" all commands is a command name followed by the name of the method"); 3536059Samurai tty->print_cr(" in one of two forms: the standard class file format as in"); 35436285Sbrian tty->print_cr(" class/name.methodName or the PrintCompilation format"); 35531598Sbrian tty->print_cr(" class.name::methodName. The method name can optionally be followed"); 35626516Sbrian tty->print_cr(" by a space then the signature of the method in the class file"); 3576059Samurai tty->print_cr(" format. Otherwise the directive applies to all methods with the"); 3586059Samurai tty->print_cr(" same name and class regardless of signature. Leading and trailing"); 3596735Samurai tty->print_cr(" *'s in the class and/or method name allows a small amount of"); 3606735Samurai tty->print_cr(" wildcarding. "); 3616059Samurai tty->cr(); 3626735Samurai tty->print_cr(" Examples:"); 3636735Samurai tty->cr(); 36436285Sbrian tty->print_cr(" exclude java/lang/StringBuffer.append"); 36528974Sbrian tty->print_cr(" compileonly java/lang/StringBuffer.toString ()Ljava/lang/String;"); 3666735Samurai tty->print_cr(" exclude java/lang/String*.*"); 3676735Samurai tty->print_cr(" exclude *.toString"); 3686059Samurai} 3696059Samurai 3706059Samurai 3716059Samurai// The characters allowed in a class or method name. All characters > 0x7f 3726059Samurai// are allowed in order to handle obfuscated class files (e.g. Volano) 3736059Samurai#define RANGEBASE "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789$_<>" \ 3746059Samurai "\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f" \ 3756735Samurai "\x90\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f" \ 37636285Sbrian "\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf" \ 37728974Sbrian "\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf" \ 3786059Samurai "\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf" \ 3796059Samurai "\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf" \ 3806059Samurai "\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee\xef" \ 3816059Samurai "\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff" 3826059Samurai 38331739Sbrian#define RANGE0 "[*" RANGEBASE "]" 38431739Sbrian#define RANGEDOT "[*" RANGEBASE ".]" 38531739Sbrian#define RANGESLASH "[*" RANGEBASE "/]" 38631739Sbrian 38731739Sbrian 38836285Sbrian// Accept several syntaxes for these patterns 38936285Sbrian// original syntax 39031739Sbrian// cmd java.lang.String foo 39131739Sbrian// PrintCompilation syntax 39231739Sbrian// cmd java.lang.String::foo 39331739Sbrian// VM syntax 39431739Sbrian// cmd java/lang/String[. ]foo 39531739Sbrian// 39631739Sbrian 39736285Sbrianstatic const char* patterns[] = { 39831739Sbrian "%*[ \t]%255" RANGEDOT " " "%255" RANGE0 "%n", 39931739Sbrian "%*[ \t]%255" RANGEDOT "::" "%255" RANGE0 "%n", 40031739Sbrian "%*[ \t]%255" RANGESLASH "%*[ .]" "%255" RANGE0 "%n", 40131739Sbrian}; 40236285Sbrian 40331739Sbrianstatic MethodMatcher::Mode check_mode(char name[], const char*& error_msg) { 40431739Sbrian int match = MethodMatcher::Exact; 40531739Sbrian while (name[0] == '*') { 40631739Sbrian match |= MethodMatcher::Suffix; 40731739Sbrian strcpy(name, name + 1); 40831739Sbrian } 40936285Sbrian 41036285Sbrian if (strcmp(name, "*") == 0) return MethodMatcher::Any; 41131739Sbrian 41236285Sbrian size_t len = strlen(name); 41331739Sbrian while (len > 0 && name[len - 1] == '*') { 41436285Sbrian match |= MethodMatcher::Prefix; 41536285Sbrian name[--len] = '\0'; 41631739Sbrian } 41731739Sbrian 4186059Samurai if (strstr(name, "*") != NULL) { 4196059Samurai error_msg = " Embedded * not allowed"; 4206059Samurai return MethodMatcher::Unknown; 4216059Samurai } 4226059Samurai return (MethodMatcher::Mode)match; 4236059Samurai} 42428679Sbrian 4256059Samuraistatic bool scan_line(const char * line, 42631176Sbrian char class_name[], MethodMatcher::Mode* c_mode, 42731343Sbrian char method_name[], MethodMatcher::Mode* m_mode, 42828679Sbrian int* bytes_read, const char*& error_msg) { 42931354Sbrian *bytes_read = 0; 43031176Sbrian error_msg = NULL; 43131176Sbrian for (uint i = 0; i < ARRAY_SIZE(patterns); i++) { 43236285Sbrian if (2 == sscanf(line, patterns[i], class_name, method_name, bytes_read)) { 43331176Sbrian *c_mode = check_mode(class_name, error_msg); 43431176Sbrian *m_mode = check_mode(method_name, error_msg); 43531176Sbrian return *c_mode != MethodMatcher::Unknown && *m_mode != MethodMatcher::Unknown; 4366059Samurai } 43731690Sbrian } 43836285Sbrian return false; 43936285Sbrian} 44036285Sbrian 44131690Sbrian 44236285Sbrian 44331690Sbrianvoid CompilerOracle::parse_from_line(char* line) { 44436285Sbrian if (line[0] == '\0') return; 44536285Sbrian if (line[0] == '#') return; 44636285Sbrian 44736285Sbrian bool have_colon = (strstr(line, "::") != NULL); 44836285Sbrian for (char* lp = line; *lp != '\0'; lp++) { 44936285Sbrian // Allow '.' to separate the class name from the method name. 45036285Sbrian // This is the preferred spelling of methods: 45136285Sbrian // exclude java/lang/String.indexOf(I)I 45236285Sbrian // Allow ',' for spaces (eases command line quoting). 45336285Sbrian // exclude,java/lang/String.indexOf 45436285Sbrian // For backward compatibility, allow space as separator also. 45536285Sbrian // exclude java/lang/String indexOf 45636285Sbrian // exclude,java/lang/String,indexOf 45736285Sbrian // For easy cut-and-paste of method names, allow VM output format 45836285Sbrian // as produced by methodOopDesc::print_short_name: 45936285Sbrian // exclude java.lang.String::indexOf 46036285Sbrian // For simple implementation convenience here, convert them all to space. 46136285Sbrian if (have_colon) { 46236285Sbrian if (*lp == '.') *lp = '/'; // dots build the package prefix 46336285Sbrian if (*lp == ':') *lp = ' '; 46436285Sbrian } 46536285Sbrian if (*lp == ',' || *lp == '.') *lp = ' '; 46636285Sbrian } 46736285Sbrian 46836285Sbrian char* original_line = line; 46936285Sbrian int bytes_read; 47036285Sbrian OracleCommand command = parse_command_name(line, &bytes_read); 47136285Sbrian line += bytes_read; 47236285Sbrian 47336285Sbrian if (command == UnknownCommand) { 47436285Sbrian tty->print_cr("CompilerOracle: unrecognized line"); 47536285Sbrian tty->print_cr(" \"%s\"", original_line); 47636285Sbrian return; 47736285Sbrian } 47836285Sbrian 47936285Sbrian if (command == QuietCommand) { 48036285Sbrian _quiet = true; 48136285Sbrian return; 48236285Sbrian } 48336285Sbrian 48436285Sbrian if (command == HelpCommand) { 48536285Sbrian usage(); 48636285Sbrian return; 48736285Sbrian } 48836285Sbrian 48936285Sbrian MethodMatcher::Mode c_match = MethodMatcher::Exact; 49036285Sbrian MethodMatcher::Mode m_match = MethodMatcher::Exact; 49136285Sbrian char class_name[256]; 49236285Sbrian char method_name[256]; 49336285Sbrian char sig[1024]; 49436285Sbrian char errorbuf[1024]; 49536285Sbrian const char* error_msg = NULL; 49636285Sbrian MethodMatcher* match = NULL; 49736285Sbrian 49836285Sbrian if (scan_line(line, class_name, &c_match, method_name, &m_match, &bytes_read, error_msg)) { 49936285Sbrian EXCEPTION_MARK; 50036285Sbrian Symbol* c_name = SymbolTable::new_symbol(class_name, CHECK); 50136285Sbrian Symbol* m_name = SymbolTable::new_symbol(method_name, CHECK); 50236285Sbrian Symbol* signature = NULL; 50336285Sbrian 50436285Sbrian line += bytes_read; 50536285Sbrian // there might be a signature following the method. 50636285Sbrian // signatures always begin with ( so match that by hand 50736285Sbrian if (1 == sscanf(line, "%*[ \t](%254[[);/" RANGEBASE "]%n", sig + 1, &bytes_read)) { 50836285Sbrian sig[0] = '('; 50936285Sbrian line += bytes_read; 51036285Sbrian signature = SymbolTable::new_symbol(sig, CHECK); 51136285Sbrian } 51236285Sbrian 51336285Sbrian if (command == OptionCommand) { 51436285Sbrian // Look for trailing options to support 51536285Sbrian // ciMethod::has_option("string") to control features in the 51636285Sbrian // compiler. Multiple options may follow the method name. 51731690Sbrian char option[256]; 51831690Sbrian while (sscanf(line, "%*[ \t]%255[a-zA-Z0-9]%n", option, &bytes_read) == 1) { 51931690Sbrian if (match != NULL && !_quiet) { 52036285Sbrian // Print out the last match added 52131690Sbrian tty->print("CompilerOracle: %s ", command_names[command]); 52236285Sbrian match->print(); 52336285Sbrian } 52436285Sbrian match = add_option_string(c_name, c_match, m_name, m_match, signature, strdup(option)); 52536285Sbrian line += bytes_read; 52636285Sbrian } 52736285Sbrian } else { 52836285Sbrian bytes_read = 0; 52936285Sbrian sscanf(line, "%*[ \t]%n", &bytes_read); 53031690Sbrian if (line[bytes_read] != '\0') { 53136285Sbrian jio_snprintf(errorbuf, sizeof(errorbuf), " Unrecognized text after command: %s", line); 53236285Sbrian error_msg = errorbuf; 53331690Sbrian } else { 53436285Sbrian match = add_predicate(command, c_name, c_match, m_name, m_match, signature); 53536285Sbrian } 53636285Sbrian } 53736285Sbrian } 53836285Sbrian 53936285Sbrian if (match != NULL) { 54036285Sbrian if (!_quiet) { 54136285Sbrian tty->print("CompilerOracle: %s ", command_names[command]); 54236285Sbrian match->print(); 54336285Sbrian } 54436285Sbrian } else { 54536285Sbrian tty->print_cr("CompilerOracle: unrecognized line"); 54636285Sbrian tty->print_cr(" \"%s\"", original_line); 54736285Sbrian if (error_msg != NULL) { 54836285Sbrian tty->print_cr(error_msg); 54936285Sbrian } 55036285Sbrian } 55136285Sbrian} 55236285Sbrian 55336285Sbrianstatic const char* cc_file() { 55436285Sbrian if (CompileCommandFile == NULL) 55536285Sbrian return ".hotspot_compiler"; 55636285Sbrian return CompileCommandFile; 55736285Sbrian} 55836285Sbrianbool CompilerOracle::_quiet = false; 55936285Sbrian 56036285Sbrianvoid CompilerOracle::parse_from_file() { 56131690Sbrian FILE* stream = fopen(cc_file(), "rt"); 562 if (stream == NULL) return; 563 564 char token[1024]; 565 int pos = 0; 566 int c = getc(stream); 567 while(c != EOF) { 568 if (c == '\n') { 569 token[pos++] = '\0'; 570 parse_from_line(token); 571 pos = 0; 572 } else { 573 token[pos++] = c; 574 } 575 c = getc(stream); 576 } 577 token[pos++] = '\0'; 578 parse_from_line(token); 579 580 fclose(stream); 581} 582 583void CompilerOracle::parse_from_string(const char* str, void (*parse_line)(char*)) { 584 char token[1024]; 585 int pos = 0; 586 const char* sp = str; 587 int c = *sp++; 588 while (c != '\0') { 589 if (c == '\n') { 590 token[pos++] = '\0'; 591 parse_line(token); 592 pos = 0; 593 } else { 594 token[pos++] = c; 595 } 596 c = *sp++; 597 } 598 token[pos++] = '\0'; 599 parse_line(token); 600} 601 602void CompilerOracle::append_comment_to_file(const char* message) { 603 fileStream stream(fopen(cc_file(), "at")); 604 stream.print("# "); 605 for (int index = 0; message[index] != '\0'; index++) { 606 stream.put(message[index]); 607 if (message[index] == '\n') stream.print("# "); 608 } 609 stream.cr(); 610} 611 612void CompilerOracle::append_exclude_to_file(methodHandle method) { 613 fileStream stream(fopen(cc_file(), "at")); 614 stream.print("exclude "); 615 Klass::cast(method->method_holder())->name()->print_symbol_on(&stream); 616 stream.print("."); 617 method->name()->print_symbol_on(&stream); 618 method->signature()->print_symbol_on(&stream); 619 stream.cr(); 620 stream.cr(); 621} 622 623 624void compilerOracle_init() { 625 CompilerOracle::parse_from_string(CompileCommand, CompilerOracle::parse_from_line); 626 CompilerOracle::parse_from_string(CompileOnly, CompilerOracle::parse_compile_only); 627 CompilerOracle::parse_from_file(); 628 if (lists[PrintCommand] != NULL) { 629 if (PrintAssembly) { 630 warning("CompileCommand and/or .hotspot_compiler file contains 'print' commands, but PrintAssembly is also enabled"); 631 } else if (FLAG_IS_DEFAULT(DebugNonSafepoints)) { 632 warning("printing of assembly code is enabled; turning on DebugNonSafepoints to gain additional output"); 633 DebugNonSafepoints = true; 634 } 635 } 636} 637 638 639void CompilerOracle::parse_compile_only(char * line) { 640 int i; 641 char name[1024]; 642 const char* className = NULL; 643 const char* methodName = NULL; 644 645 bool have_colon = (strstr(line, "::") != NULL); 646 char method_sep = have_colon ? ':' : '.'; 647 648 if (Verbose) { 649 tty->print_cr(line); 650 } 651 652 ResourceMark rm; 653 while (*line != '\0') { 654 MethodMatcher::Mode c_match = MethodMatcher::Exact; 655 MethodMatcher::Mode m_match = MethodMatcher::Exact; 656 657 for (i = 0; 658 i < 1024 && *line != '\0' && *line != method_sep && *line != ',' && !isspace(*line); 659 line++, i++) { 660 name[i] = *line; 661 if (name[i] == '.') name[i] = '/'; // package prefix uses '/' 662 } 663 664 if (i > 0) { 665 char* newName = NEW_RESOURCE_ARRAY( char, i + 1); 666 if (newName == NULL) 667 return; 668 strncpy(newName, name, i); 669 newName[i] = '\0'; 670 671 if (className == NULL) { 672 className = newName; 673 c_match = MethodMatcher::Prefix; 674 } else { 675 methodName = newName; 676 } 677 } 678 679 if (*line == method_sep) { 680 if (className == NULL) { 681 className = ""; 682 c_match = MethodMatcher::Any; 683 } else { 684 // foo/bar.blah is an exact match on foo/bar, bar.blah is a suffix match on bar 685 if (strchr(className, '/') != NULL) { 686 c_match = MethodMatcher::Exact; 687 } else { 688 c_match = MethodMatcher::Suffix; 689 } 690 } 691 } else { 692 // got foo or foo/bar 693 if (className == NULL) { 694 ShouldNotReachHere(); 695 } else { 696 // got foo or foo/bar 697 if (strchr(className, '/') != NULL) { 698 c_match = MethodMatcher::Prefix; 699 } else if (className[0] == '\0') { 700 c_match = MethodMatcher::Any; 701 } else { 702 c_match = MethodMatcher::Substring; 703 } 704 } 705 } 706 707 // each directive is terminated by , or NUL or . followed by NUL 708 if (*line == ',' || *line == '\0' || (line[0] == '.' && line[1] == '\0')) { 709 if (methodName == NULL) { 710 methodName = ""; 711 if (*line != method_sep) { 712 m_match = MethodMatcher::Any; 713 } 714 } 715 716 EXCEPTION_MARK; 717 Symbol* c_name = SymbolTable::new_symbol(className, CHECK); 718 Symbol* m_name = SymbolTable::new_symbol(methodName, CHECK); 719 Symbol* signature = NULL; 720 721 add_predicate(CompileOnlyCommand, c_name, c_match, m_name, m_match, signature); 722 if (PrintVMOptions) { 723 tty->print("CompileOnly: compileonly "); 724 lists[CompileOnlyCommand]->print(); 725 } 726 727 className = NULL; 728 methodName = NULL; 729 } 730 731 line = *line == '\0' ? line : line + 1; 732 } 733} 734