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src/hotspot/share/classfile/classPrinter.cpp

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 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 "classfile/classLoaderData.hpp"
 26 #include "classfile/classLoaderDataGraph.hpp"
 27 #include "classfile/classPrinter.hpp"
 28 #include "memory/iterator.hpp"
 29 #include "memory/resourceArea.hpp"
 30 #include "oops/instanceKlass.hpp"
 31 #include "oops/klass.hpp"
 32 #include "oops/method.hpp"
 33 #include "oops/symbol.hpp"
 34 #include "utilities/ostream.hpp"
 35 
 36 class ClassPrinter::KlassPrintClosure : public LockedClassesDo {
 37   const char* _class_name_pattern;
 38   const char* _method_name_pattern;
 39   const char* _method_signature_pattern;
 40   bool _always_print_class_name;
 41   int _flags;
 42   outputStream* _st;
 43   int _num;
 44   bool _has_printed_methods;
 45 public:
 46   KlassPrintClosure(const char* class_name_pattern,
 47                     const char* method_name_pattern,
 48                     const char* method_signature_pattern,
 49                     bool always_print_class_name,
 50                     int flags, outputStream* st)
 51     : _class_name_pattern(class_name_pattern),
 52       _method_name_pattern(method_name_pattern),
 53       _method_signature_pattern(method_signature_pattern),
 54       _always_print_class_name(always_print_class_name),
 55       _flags(flags), _st(st), _num(0), _has_printed_methods(false)
 56   {

 57     if (has_mode(_flags, PRINT_METHOD_HANDLE)) {
 58       _flags |= (PRINT_METHOD_NAME | PRINT_BYTECODE);
 59     }
 60     if (has_mode(_flags, PRINT_DYNAMIC)) {
 61       _flags |= (PRINT_METHOD_NAME | PRINT_BYTECODE);
 62     }
 63     if (has_mode(_flags, PRINT_BYTECODE_ADDR)) {
 64       _flags |= (PRINT_METHOD_NAME | PRINT_BYTECODE);
 65     }
 66     if (has_mode(_flags, PRINT_BYTECODE)) {
 67       _flags |= (PRINT_METHOD_NAME);
 68     }
 69   }
 70 
 71   virtual void do_klass(Klass* k) {
 72     if (!k->is_instance_klass()) {
 73       return;
 74     }
 75     print_instance_klass(InstanceKlass::cast(k));
 76   }
 77 
 78   static bool match(const char* pattern, Symbol* sym) {
 79     return (pattern == nullptr || sym->is_star_match(pattern));
 80   }
 81 
 82   void print_klass_name(InstanceKlass* ik) {
 83     _st->print("[%3d] " INTPTR_FORMAT " class %s ", _num++, p2i(ik), ik->name()->as_C_string());

 84     ik->class_loader_data()->print_value_on(_st);
 85     _st->cr();
 86   }
 87 
 88   void print_instance_klass(InstanceKlass* ik) {
 89     if (ik->is_loaded() && ik->name()->is_star_match(_class_name_pattern)) {
 90       ResourceMark rm;
 91       if (_has_printed_methods) {
 92         // We have printed some methods in the previous class.
 93         // Print a new line to separate the two classes
 94         _st->cr();
 95       }
 96       _has_printed_methods = false;
 97       if (_always_print_class_name) {
 98         print_klass_name(ik);
 99       }
100 
101       if (has_mode(_flags, ClassPrinter::PRINT_METHOD_NAME)) {
102         bool print_codes = has_mode(_flags, ClassPrinter::PRINT_BYTECODE);
103         int len = ik->methods()->length();

 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 "classfile/classLoaderData.hpp"
 26 #include "classfile/classLoaderDataGraph.hpp"
 27 #include "classfile/classPrinter.hpp"
 28 #include "memory/iterator.hpp"
 29 #include "memory/resourceArea.hpp"
 30 #include "oops/instanceKlass.hpp"
 31 #include "oops/klass.inline.hpp"
 32 #include "oops/method.hpp"
 33 #include "oops/symbol.hpp"
 34 #include "utilities/ostream.hpp"
 35 
 36 class ClassPrinter::KlassPrintClosure : public LockedClassesDo {
 37   const char* _class_name_pattern;
 38   const char* _method_name_pattern;
 39   const char* _method_signature_pattern;
 40   bool _always_print_class_name;
 41   int _flags;
 42   outputStream* _st;
 43   int _num;
 44   bool _has_printed_methods;
 45 public:
 46   KlassPrintClosure(const char* class_name_pattern,
 47                     const char* method_name_pattern,
 48                     const char* method_signature_pattern,
 49                     bool always_print_class_name,
 50                     int flags, outputStream* st)
 51     : _class_name_pattern(class_name_pattern),
 52       _method_name_pattern(method_name_pattern),
 53       _method_signature_pattern(method_signature_pattern),
 54       _always_print_class_name(always_print_class_name),
 55       _flags(flags), _st(st), _num(0), _has_printed_methods(false)
 56   {
 57     _flags |= (PRINT_PROFILE);
 58     if (has_mode(_flags, PRINT_METHOD_HANDLE)) {
 59       _flags |= (PRINT_METHOD_NAME | PRINT_BYTECODE);
 60     }
 61     if (has_mode(_flags, PRINT_DYNAMIC)) {
 62       _flags |= (PRINT_METHOD_NAME | PRINT_BYTECODE);
 63     }
 64     if (has_mode(_flags, PRINT_BYTECODE_ADDR)) {
 65       _flags |= (PRINT_METHOD_NAME | PRINT_BYTECODE);
 66     }
 67     if (has_mode(_flags, PRINT_BYTECODE)) {
 68       _flags |= (PRINT_METHOD_NAME);
 69     }
 70   }
 71 
 72   virtual void do_klass(Klass* k) {
 73     if (!k->is_instance_klass()) {
 74       return;
 75     }
 76     print_instance_klass(InstanceKlass::cast(k));
 77   }
 78 
 79   static bool match(const char* pattern, Symbol* sym) {
 80     return (pattern == nullptr || sym->is_star_match(pattern));
 81   }
 82 
 83   void print_klass_name(InstanceKlass* ik) {
 84     _st->print("[%3d] " INTPTR_FORMAT " class %s mirror: " INTPTR_FORMAT " ", _num++,
 85                p2i(ik), ik->name()->as_C_string(), p2i(ik->java_mirror()));
 86     ik->class_loader_data()->print_value_on(_st);
 87     _st->cr();
 88   }
 89 
 90   void print_instance_klass(InstanceKlass* ik) {
 91     if (ik->is_loaded() && ik->name()->is_star_match(_class_name_pattern)) {
 92       ResourceMark rm;
 93       if (_has_printed_methods) {
 94         // We have printed some methods in the previous class.
 95         // Print a new line to separate the two classes
 96         _st->cr();
 97       }
 98       _has_printed_methods = false;
 99       if (_always_print_class_name) {
100         print_klass_name(ik);
101       }
102 
103       if (has_mode(_flags, ClassPrinter::PRINT_METHOD_NAME)) {
104         bool print_codes = has_mode(_flags, ClassPrinter::PRINT_BYTECODE);
105         int len = ik->methods()->length();
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