| /* |
| * Copyright (c) 1998, 2020, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| #include "precompiled.hpp" |
| #include "jvm.h" |
| #include "classfile/symbolTable.hpp" |
| #include "compiler/compilerOracle.hpp" |
| #include "compiler/methodMatcher.hpp" |
| #include "memory/allocation.inline.hpp" |
| #include "memory/oopFactory.hpp" |
| #include "memory/resourceArea.hpp" |
| #include "oops/klass.hpp" |
| #include "oops/method.hpp" |
| #include "oops/symbol.hpp" |
| #include "runtime/globals_extension.hpp" |
| #include "runtime/handles.inline.hpp" |
| #include "runtime/jniHandles.hpp" |
| #include "runtime/os.hpp" |
| |
| enum OptionType { |
| IntxType, |
| UintxType, |
| BoolType, |
| CcstrType, |
| DoubleType, |
| UnknownType |
| }; |
| |
| /* Methods to map real type names to OptionType */ |
| template<typename T> |
| static OptionType get_type_for() { |
| return UnknownType; |
| }; |
| |
| template<> OptionType get_type_for<intx>() { |
| return IntxType; |
| } |
| |
| template<> OptionType get_type_for<uintx>() { |
| return UintxType; |
| } |
| |
| template<> OptionType get_type_for<bool>() { |
| return BoolType; |
| } |
| |
| template<> OptionType get_type_for<ccstr>() { |
| return CcstrType; |
| } |
| |
| template<> OptionType get_type_for<double>() { |
| return DoubleType; |
| } |
| |
| // this must parallel the command_names below |
| enum OracleCommand { |
| UnknownCommand = -1, |
| OracleFirstCommand = 0, |
| BreakCommand = OracleFirstCommand, |
| PrintCommand, |
| ExcludeCommand, |
| InlineCommand, |
| DontInlineCommand, |
| CompileOnlyCommand, |
| LogCommand, |
| OptionCommand, |
| QuietCommand, |
| HelpCommand, |
| OracleCommandCount |
| }; |
| |
| // this must parallel the enum OracleCommand |
| static const char * command_names[] = { |
| "break", |
| "print", |
| "exclude", |
| "inline", |
| "dontinline", |
| "compileonly", |
| "log", |
| "option", |
| "quiet", |
| "help" |
| }; |
| |
| class MethodMatcher; |
| class TypedMethodOptionMatcher; |
| |
| static BasicMatcher* lists[OracleCommandCount] = { 0, }; |
| static TypedMethodOptionMatcher* option_list = NULL; |
| static bool any_set = false; |
| |
| class TypedMethodOptionMatcher : public MethodMatcher { |
| private: |
| TypedMethodOptionMatcher* _next; |
| const char* _option; |
| OptionType _type; |
| public: |
| |
| union { |
| bool bool_value; |
| intx intx_value; |
| uintx uintx_value; |
| double double_value; |
| ccstr ccstr_value; |
| } _u; |
| |
| TypedMethodOptionMatcher() : MethodMatcher(), |
| _next(NULL), |
| _type(UnknownType) { |
| _option = NULL; |
| memset(&_u, 0, sizeof(_u)); |
| } |
| |
| static TypedMethodOptionMatcher* parse_method_pattern(char*& line, const char*& error_msg); |
| TypedMethodOptionMatcher* match(const methodHandle& method, const char* opt, OptionType type); |
| |
| void init(const char* opt, OptionType type, TypedMethodOptionMatcher* next) { |
| _next = next; |
| _type = type; |
| _option = os::strdup_check_oom(opt); |
| } |
| |
| void set_next(TypedMethodOptionMatcher* next) {_next = next; } |
| TypedMethodOptionMatcher* next() { return _next; } |
| OptionType type() { return _type; } |
| template<typename T> T value(); |
| template<typename T> void set_value(T value); |
| void print(); |
| void print_all(); |
| TypedMethodOptionMatcher* clone(); |
| ~TypedMethodOptionMatcher(); |
| }; |
| |
| // A few templated accessors instead of a full template class. |
| template<> intx TypedMethodOptionMatcher::value<intx>() { |
| return _u.intx_value; |
| } |
| |
| template<> uintx TypedMethodOptionMatcher::value<uintx>() { |
| return _u.uintx_value; |
| } |
| |
| template<> bool TypedMethodOptionMatcher::value<bool>() { |
| return _u.bool_value; |
| } |
| |
| template<> double TypedMethodOptionMatcher::value<double>() { |
| return _u.double_value; |
| } |
| |
| template<> ccstr TypedMethodOptionMatcher::value<ccstr>() { |
| return _u.ccstr_value; |
| } |
| |
| template<> void TypedMethodOptionMatcher::set_value(intx value) { |
| _u.intx_value = value; |
| } |
| |
| template<> void TypedMethodOptionMatcher::set_value(uintx value) { |
| _u.uintx_value = value; |
| } |
| |
| template<> void TypedMethodOptionMatcher::set_value(double value) { |
| _u.double_value = value; |
| } |
| |
| template<> void TypedMethodOptionMatcher::set_value(bool value) { |
| _u.bool_value = value; |
| } |
| |
| template<> void TypedMethodOptionMatcher::set_value(ccstr value) { |
| _u.ccstr_value = (const ccstr)os::strdup_check_oom(value); |
| } |
| |
| void TypedMethodOptionMatcher::print() { |
| ttyLocker ttyl; |
| print_base(tty); |
| switch (_type) { |
| case IntxType: |
| tty->print_cr(" intx %s = " INTX_FORMAT, _option, value<intx>()); |
| break; |
| case UintxType: |
| tty->print_cr(" uintx %s = " UINTX_FORMAT, _option, value<uintx>()); |
| break; |
| case BoolType: |
| tty->print_cr(" bool %s = %s", _option, value<bool>() ? "true" : "false"); |
| break; |
| case DoubleType: |
| tty->print_cr(" double %s = %f", _option, value<double>()); |
| break; |
| case CcstrType: |
| tty->print_cr(" const char* %s = '%s'", _option, value<ccstr>()); |
| break; |
| default: |
| ShouldNotReachHere(); |
| } |
| } |
| |
| void TypedMethodOptionMatcher::print_all() { |
| print(); |
| if (_next != NULL) { |
| tty->print(" "); |
| _next->print_all(); |
| } |
| } |
| |
| TypedMethodOptionMatcher* TypedMethodOptionMatcher::clone() { |
| TypedMethodOptionMatcher* m = new TypedMethodOptionMatcher(); |
| m->_class_mode = _class_mode; |
| m->_class_name = _class_name; |
| m->_method_mode = _method_mode; |
| m->_method_name = _method_name; |
| m->_signature = _signature; |
| // Need to ref count the symbols |
| if (_class_name != NULL) { |
| _class_name->increment_refcount(); |
| } |
| if (_method_name != NULL) { |
| _method_name->increment_refcount(); |
| } |
| if (_signature != NULL) { |
| _signature->increment_refcount(); |
| } |
| return m; |
| } |
| |
| TypedMethodOptionMatcher::~TypedMethodOptionMatcher() { |
| if (_option != NULL) { |
| os::free((void*)_option); |
| } |
| } |
| |
| TypedMethodOptionMatcher* TypedMethodOptionMatcher::parse_method_pattern(char*& line, const char*& error_msg) { |
| assert(error_msg == NULL, "Dont call here with error_msg already set"); |
| TypedMethodOptionMatcher* tom = new TypedMethodOptionMatcher(); |
| MethodMatcher::parse_method_pattern(line, error_msg, tom); |
| if (error_msg != NULL) { |
| delete tom; |
| return NULL; |
| } |
| return tom; |
| } |
| |
| TypedMethodOptionMatcher* TypedMethodOptionMatcher::match(const methodHandle& method, const char* opt, OptionType type) { |
| TypedMethodOptionMatcher* current = this; |
| while (current != NULL) { |
| // Fastest compare first. |
| if (current->type() == type) { |
| if (strcmp(current->_option, opt) == 0) { |
| if (current->matches(method)) { |
| return current; |
| } |
| } |
| } |
| current = current->next(); |
| } |
| return NULL; |
| } |
| |
| template<typename T> |
| static void add_option_string(TypedMethodOptionMatcher* matcher, |
| const char* option, |
| T value) { |
| assert(matcher != option_list, "No circular lists please"); |
| matcher->init(option, get_type_for<T>(), option_list); |
| matcher->set_value<T>(value); |
| option_list = matcher; |
| any_set = true; |
| return; |
| } |
| |
| static bool check_predicate(OracleCommand command, const methodHandle& method) { |
| return ((lists[command] != NULL) && |
| !method.is_null() && |
| lists[command]->match(method)); |
| } |
| |
| static void add_predicate(OracleCommand command, BasicMatcher* bm) { |
| assert(command != OptionCommand, "must use add_option_string"); |
| if (command == LogCommand && !LogCompilation && lists[LogCommand] == NULL) { |
| tty->print_cr("Warning: +LogCompilation must be enabled in order for individual methods to be logged."); |
| } |
| bm->set_next(lists[command]); |
| lists[command] = bm; |
| if ((command != DontInlineCommand) && (command != InlineCommand)) { |
| any_set = true; |
| } |
| return; |
| } |
| |
| template<typename T> |
| bool CompilerOracle::has_option_value(const methodHandle& method, const char* option, T& value) { |
| if (option_list != NULL) { |
| TypedMethodOptionMatcher* m = option_list->match(method, option, get_type_for<T>()); |
| if (m != NULL) { |
| value = m->value<T>(); |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| bool CompilerOracle::has_any_option() { |
| return any_set; |
| } |
| |
| // Explicit instantiation for all OptionTypes supported. |
| template bool CompilerOracle::has_option_value<intx>(const methodHandle& method, const char* option, intx& value); |
| template bool CompilerOracle::has_option_value<uintx>(const methodHandle& method, const char* option, uintx& value); |
| template bool CompilerOracle::has_option_value<bool>(const methodHandle& method, const char* option, bool& value); |
| template bool CompilerOracle::has_option_value<ccstr>(const methodHandle& method, const char* option, ccstr& value); |
| template bool CompilerOracle::has_option_value<double>(const methodHandle& method, const char* option, double& value); |
| |
| bool CompilerOracle::has_option_string(const methodHandle& method, const char* option) { |
| bool value = false; |
| has_option_value(method, option, value); |
| return value; |
| } |
| |
| bool CompilerOracle::should_exclude(const methodHandle& method) { |
| if (check_predicate(ExcludeCommand, method)) { |
| return true; |
| } |
| if (lists[CompileOnlyCommand] != NULL) { |
| return !lists[CompileOnlyCommand]->match(method); |
| } |
| return false; |
| } |
| |
| bool CompilerOracle::should_inline(const methodHandle& method) { |
| return (check_predicate(InlineCommand, method)); |
| } |
| |
| bool CompilerOracle::should_not_inline(const methodHandle& method) { |
| return check_predicate(DontInlineCommand, method) || check_predicate(ExcludeCommand, method); |
| } |
| |
| bool CompilerOracle::should_print(const methodHandle& method) { |
| return check_predicate(PrintCommand, method); |
| } |
| |
| bool CompilerOracle::should_print_methods() { |
| return lists[PrintCommand] != NULL; |
| } |
| |
| bool CompilerOracle::should_log(const methodHandle& method) { |
| if (!LogCompilation) return false; |
| if (lists[LogCommand] == NULL) return true; // by default, log all |
| return (check_predicate(LogCommand, method)); |
| } |
| |
| bool CompilerOracle::should_break_at(const methodHandle& method) { |
| return check_predicate(BreakCommand, method); |
| } |
| |
| static OracleCommand parse_command_name(const char * line, int* bytes_read) { |
| assert(ARRAY_SIZE(command_names) == OracleCommandCount, |
| "command_names size mismatch"); |
| |
| *bytes_read = 0; |
| char command[33]; |
| int matches = sscanf(line, "%32[a-z]%n", command, bytes_read); |
| if (matches > 0) { |
| for (uint i = 0; i < ARRAY_SIZE(command_names); i++) { |
| if (strcmp(command, command_names[i]) == 0) { |
| return (OracleCommand)i; |
| } |
| } |
| } |
| return UnknownCommand; |
| } |
| |
| static void usage() { |
| tty->cr(); |
| tty->print_cr("The CompileCommand option enables the user of the JVM to control specific"); |
| tty->print_cr("behavior of the dynamic compilers. Many commands require a pattern that defines"); |
| tty->print_cr("the set of methods the command shall be applied to. The CompileCommand"); |
| tty->print_cr("option provides the following commands:"); |
| tty->cr(); |
| tty->print_cr(" break,<pattern> - debug breakpoint in compiler and in generated code"); |
| tty->print_cr(" print,<pattern> - print assembly"); |
| tty->print_cr(" exclude,<pattern> - don't compile or inline"); |
| tty->print_cr(" inline,<pattern> - always inline"); |
| tty->print_cr(" dontinline,<pattern> - don't inline"); |
| tty->print_cr(" compileonly,<pattern> - compile only"); |
| tty->print_cr(" log,<pattern> - log compilation"); |
| tty->print_cr(" option,<pattern>,<option type>,<option name>,<value>"); |
| tty->print_cr(" - set value of custom option"); |
| tty->print_cr(" option,<pattern>,<bool option name>"); |
| tty->print_cr(" - shorthand for setting boolean flag"); |
| tty->print_cr(" quiet - silence the compile command output"); |
| tty->print_cr(" help - print this text"); |
| tty->cr(); |
| tty->print_cr("The preferred format for the method matching pattern is:"); |
| tty->print_cr(" package/Class.method()"); |
| tty->cr(); |
| tty->print_cr("For backward compatibility this form is also allowed:"); |
| tty->print_cr(" package.Class::method()"); |
| tty->cr(); |
| tty->print_cr("The signature can be separated by an optional whitespace or comma:"); |
| tty->print_cr(" package/Class.method ()"); |
| tty->cr(); |
| tty->print_cr("The class and method identifier can be used together with leading or"); |
| tty->print_cr("trailing *'s for a small amount of wildcarding:"); |
| tty->print_cr(" *ackage/Clas*.*etho*()"); |
| tty->cr(); |
| tty->print_cr("It is possible to use more than one CompileCommand on the command line:"); |
| tty->print_cr(" -XX:CompileCommand=exclude,java/*.* -XX:CompileCommand=log,java*.*"); |
| tty->cr(); |
| tty->print_cr("The CompileCommands can be loaded from a file with the flag"); |
| tty->print_cr("-XX:CompileCommandFile=<file> or be added to the file '.hotspot_compiler'"); |
| tty->print_cr("Use the same format in the file as the argument to the CompileCommand flag."); |
| tty->print_cr("Add one command on each line."); |
| tty->print_cr(" exclude java/*.*"); |
| tty->print_cr(" option java/*.* ReplayInline"); |
| tty->cr(); |
| tty->print_cr("The following commands have conflicting behavior: 'exclude', 'inline', 'dontinline',"); |
| tty->print_cr("and 'compileonly'. There is no priority of commands. Applying (a subset of) these"); |
| tty->print_cr("commands to the same method results in undefined behavior."); |
| tty->cr(); |
| }; |
| |
| // Scan next flag and value in line, return MethodMatcher object on success, NULL on failure. |
| // On failure, error_msg contains description for the first error. |
| // For future extensions: set error_msg on first error. |
| static void scan_flag_and_value(const char* type, const char* line, int& total_bytes_read, |
| TypedMethodOptionMatcher* matcher, |
| char* errorbuf, const int buf_size) { |
| total_bytes_read = 0; |
| int bytes_read = 0; |
| char flag[256]; |
| |
| // Read flag name. |
| if (sscanf(line, "%*[ \t]%255[a-zA-Z0-9]%n", flag, &bytes_read) == 1) { |
| line += bytes_read; |
| total_bytes_read += bytes_read; |
| |
| // Read value. |
| if (strcmp(type, "intx") == 0) { |
| intx value; |
| if (sscanf(line, "%*[ \t]" INTX_FORMAT "%n", &value, &bytes_read) == 1) { |
| total_bytes_read += bytes_read; |
| add_option_string(matcher, flag, value); |
| return; |
| } else { |
| jio_snprintf(errorbuf, buf_size, " Value cannot be read for flag %s of type %s ", flag, type); |
| } |
| } else if (strcmp(type, "uintx") == 0) { |
| uintx value; |
| if (sscanf(line, "%*[ \t]" UINTX_FORMAT "%n", &value, &bytes_read) == 1) { |
| total_bytes_read += bytes_read; |
| add_option_string(matcher, flag, value); |
| return; |
| } else { |
| jio_snprintf(errorbuf, buf_size, " Value cannot be read for flag %s of type %s", flag, type); |
| } |
| } else if (strcmp(type, "ccstr") == 0) { |
| ResourceMark rm; |
| char* value = NEW_RESOURCE_ARRAY(char, strlen(line) + 1); |
| if (sscanf(line, "%*[ \t]%255[_a-zA-Z0-9]%n", value, &bytes_read) == 1) { |
| total_bytes_read += bytes_read; |
| add_option_string(matcher, flag, (ccstr)value); |
| return; |
| } else { |
| jio_snprintf(errorbuf, buf_size, " Value cannot be read for flag %s of type %s", flag, type); |
| } |
| } else if (strcmp(type, "ccstrlist") == 0) { |
| // Accumulates several strings into one. The internal type is ccstr. |
| ResourceMark rm; |
| char* value = NEW_RESOURCE_ARRAY(char, strlen(line) + 1); |
| char* next_value = value; |
| if (sscanf(line, "%*[ \t]%255[_a-zA-Z0-9+\\-]%n", next_value, &bytes_read) == 1) { |
| total_bytes_read += bytes_read; |
| line += bytes_read; |
| next_value += bytes_read; |
| char* end_value = next_value-1; |
| while (sscanf(line, "%*[ \t]%255[_a-zA-Z0-9+\\-]%n", next_value, &bytes_read) == 1) { |
| total_bytes_read += bytes_read; |
| line += bytes_read; |
| *end_value = ' '; // override '\0' |
| next_value += bytes_read; |
| end_value = next_value-1; |
| } |
| add_option_string(matcher, flag, (ccstr)value); |
| return; |
| } else { |
| jio_snprintf(errorbuf, buf_size, " Value cannot be read for flag %s of type %s", flag, type); |
| } |
| } else if (strcmp(type, "bool") == 0) { |
| char value[256]; |
| if (sscanf(line, "%*[ \t]%255[a-zA-Z]%n", value, &bytes_read) == 1) { |
| if (strcmp(value, "true") == 0) { |
| total_bytes_read += bytes_read; |
| add_option_string(matcher, flag, true); |
| return; |
| } else if (strcmp(value, "false") == 0) { |
| total_bytes_read += bytes_read; |
| add_option_string(matcher, flag, false); |
| return; |
| } else { |
| jio_snprintf(errorbuf, buf_size, " Value cannot be read for flag %s of type %s", flag, type); |
| } |
| } else { |
| jio_snprintf(errorbuf, buf_size, " Value cannot be read for flag %s of type %s", flag, type); |
| } |
| } else if (strcmp(type, "double") == 0) { |
| char buffer[2][256]; |
| // Decimal separator '.' has been replaced with ' ' or '/' earlier, |
| // so read integer and fraction part of double value separately. |
| if (sscanf(line, "%*[ \t]%255[0-9]%*[ /\t]%255[0-9]%n", buffer[0], buffer[1], &bytes_read) == 2) { |
| char value[512] = ""; |
| jio_snprintf(value, sizeof(value), "%s.%s", buffer[0], buffer[1]); |
| total_bytes_read += bytes_read; |
| add_option_string(matcher, flag, atof(value)); |
| return; |
| } else { |
| jio_snprintf(errorbuf, buf_size, " Value cannot be read for flag %s of type %s", flag, type); |
| } |
| } else { |
| jio_snprintf(errorbuf, buf_size, " Type %s not supported ", type); |
| } |
| } else { |
| jio_snprintf(errorbuf, buf_size, " Flag name for type %s should be alphanumeric ", type); |
| } |
| return; |
| } |
| |
| int skip_whitespace(char* line) { |
| // Skip any leading spaces |
| int whitespace_read = 0; |
| sscanf(line, "%*[ \t]%n", &whitespace_read); |
| return whitespace_read; |
| } |
| |
| void CompilerOracle::print_parse_error(const char*& error_msg, char* original_line) { |
| assert(error_msg != NULL, "Must have error_message"); |
| |
| ttyLocker ttyl; |
| tty->print_cr("CompileCommand: An error occurred during parsing"); |
| tty->print_cr("Line: %s", original_line); |
| tty->print_cr("Error: %s", error_msg); |
| CompilerOracle::print_tip(); |
| } |
| |
| void CompilerOracle::parse_from_line(char* line) { |
| if (line[0] == '\0') return; |
| if (line[0] == '#') return; |
| |
| char* original_line = line; |
| int bytes_read; |
| OracleCommand command = parse_command_name(line, &bytes_read); |
| line += bytes_read; |
| ResourceMark rm; |
| |
| if (command == UnknownCommand) { |
| ttyLocker ttyl; |
| tty->print_cr("CompileCommand: unrecognized command"); |
| tty->print_cr(" \"%s\"", original_line); |
| CompilerOracle::print_tip(); |
| return; |
| } |
| |
| if (command == QuietCommand) { |
| _quiet = true; |
| return; |
| } |
| |
| if (command == HelpCommand) { |
| usage(); |
| return; |
| } |
| |
| const char* error_msg = NULL; |
| if (command == OptionCommand) { |
| // Look for trailing options. |
| // |
| // Two types of trailing options are |
| // supported: |
| // |
| // (1) CompileCommand=option,Klass::method,flag |
| // (2) CompileCommand=option,Klass::method,type,flag,value |
| // |
| // Type (1) is used to enable a boolean flag for a method. |
| // |
| // Type (2) is used to support options with a value. Values can have the |
| // the following types: intx, uintx, bool, ccstr, ccstrlist, and double. |
| // |
| // For future extensions: extend scan_flag_and_value() |
| |
| char option[256]; // stores flag for Type (1) and type of Type (2) |
| line++; // skip the ',' |
| TypedMethodOptionMatcher* archetype = TypedMethodOptionMatcher::parse_method_pattern(line, error_msg); |
| if (archetype == NULL) { |
| assert(error_msg != NULL, "Must have error_message"); |
| print_parse_error(error_msg, original_line); |
| return; |
| } |
| |
| line += skip_whitespace(line); |
| |
| // This is unnecessarily complex. Should retire multi-option lines and skip while loop |
| while (sscanf(line, "%255[a-zA-Z0-9]%n", option, &bytes_read) == 1) { |
| line += bytes_read; |
| |
| // typed_matcher is used as a blueprint for each option, deleted at the end |
| TypedMethodOptionMatcher* typed_matcher = archetype->clone(); |
| if (strcmp(option, "intx") == 0 |
| || strcmp(option, "uintx") == 0 |
| || strcmp(option, "bool") == 0 |
| || strcmp(option, "ccstr") == 0 |
| || strcmp(option, "ccstrlist") == 0 |
| || strcmp(option, "double") == 0 |
| ) { |
| char errorbuf[1024] = {0}; |
| // Type (2) option: parse flag name and value. |
| scan_flag_and_value(option, line, bytes_read, typed_matcher, errorbuf, sizeof(errorbuf)); |
| if (*errorbuf != '\0') { |
| error_msg = errorbuf; |
| print_parse_error(error_msg, original_line); |
| return; |
| } |
| line += bytes_read; |
| } else { |
| // Type (1) option |
| add_option_string(typed_matcher, option, true); |
| } |
| if (typed_matcher != NULL && !_quiet) { |
| // Print out the last match added |
| assert(error_msg == NULL, "No error here"); |
| ttyLocker ttyl; |
| tty->print("CompileCommand: %s ", command_names[command]); |
| typed_matcher->print(); |
| } |
| line += skip_whitespace(line); |
| } // while( |
| delete archetype; |
| } else { // not an OptionCommand) |
| assert(error_msg == NULL, "Don't call here with error_msg already set"); |
| |
| BasicMatcher* matcher = BasicMatcher::parse_method_pattern(line, error_msg); |
| if (error_msg != NULL) { |
| assert(matcher == NULL, "consistency"); |
| print_parse_error(error_msg, original_line); |
| return; |
| } |
| |
| add_predicate(command, matcher); |
| if (!_quiet) { |
| ttyLocker ttyl; |
| tty->print("CompileCommand: %s ", command_names[command]); |
| matcher->print(tty); |
| tty->cr(); |
| } |
| } |
| } |
| |
| void CompilerOracle::print_tip() { |
| tty->cr(); |
| tty->print_cr("Usage: '-XX:CompileCommand=command,\"package/Class.method()\"'"); |
| tty->print_cr("Use: '-XX:CompileCommand=help' for more information."); |
| tty->cr(); |
| } |
| |
| static const char* default_cc_file = ".hotspot_compiler"; |
| |
| static const char* cc_file() { |
| #ifdef ASSERT |
| if (CompileCommandFile == NULL) |
| return default_cc_file; |
| #endif |
| return CompileCommandFile; |
| } |
| |
| bool CompilerOracle::has_command_file() { |
| return cc_file() != NULL; |
| } |
| |
| bool CompilerOracle::_quiet = false; |
| |
| void CompilerOracle::parse_from_file() { |
| assert(has_command_file(), "command file must be specified"); |
| FILE* stream = fopen(cc_file(), "rt"); |
| if (stream == NULL) return; |
| |
| char token[1024]; |
| int pos = 0; |
| int c = getc(stream); |
| while(c != EOF && pos < (int)(sizeof(token)-1)) { |
| if (c == '\n') { |
| token[pos++] = '\0'; |
| parse_from_line(token); |
| pos = 0; |
| } else { |
| token[pos++] = c; |
| } |
| c = getc(stream); |
| } |
| token[pos++] = '\0'; |
| parse_from_line(token); |
| |
| fclose(stream); |
| } |
| |
| void CompilerOracle::parse_from_string(const char* str, void (*parse_line)(char*)) { |
| char token[1024]; |
| int pos = 0; |
| const char* sp = str; |
| int c = *sp++; |
| while (c != '\0' && pos < (int)(sizeof(token)-1)) { |
| if (c == '\n') { |
| token[pos++] = '\0'; |
| parse_line(token); |
| pos = 0; |
| } else { |
| token[pos++] = c; |
| } |
| c = *sp++; |
| } |
| token[pos++] = '\0'; |
| parse_line(token); |
| } |
| |
| void compilerOracle_init() { |
| CompilerOracle::parse_from_string(CompileCommand, CompilerOracle::parse_from_line); |
| CompilerOracle::parse_from_string(CompileOnly, CompilerOracle::parse_compile_only); |
| if (CompilerOracle::has_command_file()) { |
| CompilerOracle::parse_from_file(); |
| } else { |
| struct stat buf; |
| if (os::stat(default_cc_file, &buf) == 0) { |
| warning("%s file is present but has been ignored. " |
| "Run with -XX:CompileCommandFile=%s to load the file.", |
| default_cc_file, default_cc_file); |
| } |
| } |
| if (lists[PrintCommand] != NULL) { |
| if (PrintAssembly) { |
| warning("CompileCommand and/or %s file contains 'print' commands, but PrintAssembly is also enabled", default_cc_file); |
| } else if (FLAG_IS_DEFAULT(DebugNonSafepoints)) { |
| warning("printing of assembly code is enabled; turning on DebugNonSafepoints to gain additional output"); |
| DebugNonSafepoints = true; |
| } |
| } |
| } |
| |
| |
| void CompilerOracle::parse_compile_only(char * line) { |
| int i; |
| char name[1024]; |
| const char* className = NULL; |
| const char* methodName = NULL; |
| |
| bool have_colon = (strstr(line, "::") != NULL); |
| char method_sep = have_colon ? ':' : '.'; |
| |
| if (Verbose) { |
| tty->print_cr("%s", line); |
| } |
| |
| ResourceMark rm; |
| while (*line != '\0') { |
| MethodMatcher::Mode c_match = MethodMatcher::Exact; |
| MethodMatcher::Mode m_match = MethodMatcher::Exact; |
| |
| for (i = 0; |
| i < 1024 && *line != '\0' && *line != method_sep && *line != ',' && !isspace(*line); |
| line++, i++) { |
| name[i] = *line; |
| if (name[i] == '.') name[i] = '/'; // package prefix uses '/' |
| } |
| |
| if (i > 0) { |
| char* newName = NEW_RESOURCE_ARRAY( char, i + 1); |
| if (newName == NULL) |
| return; |
| strncpy(newName, name, i); |
| newName[i] = '\0'; |
| |
| if (className == NULL) { |
| className = newName; |
| } else { |
| methodName = newName; |
| } |
| } |
| |
| if (*line == method_sep) { |
| if (className == NULL) { |
| className = ""; |
| c_match = MethodMatcher::Any; |
| } |
| } else { |
| // got foo or foo/bar |
| if (className == NULL) { |
| ShouldNotReachHere(); |
| } else { |
| // missing class name handled as "Any" class match |
| if (className[0] == '\0') { |
| c_match = MethodMatcher::Any; |
| } |
| } |
| } |
| |
| // each directive is terminated by , or NUL or . followed by NUL |
| if (*line == ',' || *line == '\0' || (line[0] == '.' && line[1] == '\0')) { |
| if (methodName == NULL) { |
| methodName = ""; |
| if (*line != method_sep) { |
| m_match = MethodMatcher::Any; |
| } |
| } |
| |
| EXCEPTION_MARK; |
| Symbol* c_name = SymbolTable::new_symbol(className); |
| Symbol* m_name = SymbolTable::new_symbol(methodName); |
| Symbol* signature = NULL; |
| |
| BasicMatcher* bm = new BasicMatcher(); |
| bm->init(c_name, c_match, m_name, m_match, signature); |
| add_predicate(CompileOnlyCommand, bm); |
| if (PrintVMOptions) { |
| tty->print("CompileOnly: compileonly "); |
| lists[CompileOnlyCommand]->print_all(tty); |
| } |
| |
| className = NULL; |
| methodName = NULL; |
| } |
| |
| line = *line == '\0' ? line : line + 1; |
| } |
| } |
