3dee490545
* jcf-dump.c (print_constant): Cast JPOOL_USHORT2, JPOOL_USHORT1 results to long to match formats. From-SVN: r186330
1660 lines
48 KiB
C
1660 lines
48 KiB
C
/* Program to dump out a Java(TM) .class file.
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Functionally similar to Sun's javap.
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Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
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2006, 2007, 2008, 2009, 2010, 2011, 2012 Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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GCC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>.
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Java and all Java-based marks are trademarks or registered trademarks
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of Sun Microsystems, Inc. in the United States and other countries.
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The Free Software Foundation is independent of Sun Microsystems, Inc. */
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/* Written by Per Bothner <bothner@cygnus.com>, February 1996. */
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/*
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jcf-dump is a program to print out the contents of class files.
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Usage: jcf-dump [FLAGS] CLASS
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Each CLASS is either:
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+ the name of a class in the CLASSPATH (e.g "java.lang.String"), or
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+ the name of a class *file* (e.g. "/home/me/work/package/Foo.class").
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+ The name of a .zip or .jar file (which prints all the classes in the
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archive).
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OPTIONS:
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-c
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Dis-assemble each method.
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-classpath PATH
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Overrides $CLASSPATH.
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--print-main
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Print nothing if there is no valid "main" method;
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otherwise, print only the class name.
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--javap
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Print output in the style of Sun's javap program. VERY UNFINISHED.
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*/
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#include "config.h"
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#include "system.h"
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#include "coretypes.h"
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#include "intl.h"
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#include "diagnostic.h"
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#include "jcf.h"
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#include "tree.h"
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#include "java-tree.h"
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#include "version.h"
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#include <getopt.h>
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#include <math.h>
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/* Output file. */
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FILE *out;
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/* Name of output file, if NULL if stdout. */
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char *output_file = NULL;
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int verbose = 0;
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int flag_disassemble_methods = 0;
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int flag_print_class_info = 1;
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int flag_print_constant_pool = 0;
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int flag_print_fields = 1;
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int flag_print_methods = 1;
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int flag_print_attributes = 1;
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/* Print names of classes that have a "main" method. */
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int flag_print_main = 0;
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/* Index in constant pool of this class. */
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int this_class_index = 0;
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int class_access_flags = 0;
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/* Print in format similar to javap. VERY INCOMPLETE. */
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int flag_javap_compatible = 0;
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static void print_access_flags (FILE *, uint16, char);
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static void print_constant_terse (FILE*, JCF*, int, int);
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static void print_constant_terse_with_index (FILE *, JCF *, int, int);
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static void print_constant (FILE *, JCF *, int, int);
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static void print_constant_ref (FILE *, JCF *, int);
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static void disassemble_method (JCF*, const unsigned char *, int);
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static void print_name (FILE*, JCF*, int);
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static void print_signature (FILE*, JCF*, int, int);
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static int utf8_equal_string (struct JCF*, int, const char *);
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static void usage (void) ATTRIBUTE_NORETURN;
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static void help (void) ATTRIBUTE_NORETURN;
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static void version (void) ATTRIBUTE_NORETURN;
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static void process_class (struct JCF *);
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static void print_constant_pool (struct JCF *);
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static void print_exception_table (struct JCF *, const unsigned char *entries,
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int);
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static void indent (FILE *, int);
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static void print_element_value (FILE *, JCF *, int);
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static void print_annotation (FILE *, JCF *, int);
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static void print_annotations (FILE *, JCF *, int);
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static void print_parameter_annotations (FILE *, JCF *, int);
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#define PRINT_SIGNATURE_RESULT_ONLY 1
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#define PRINT_SIGNATURE_ARGS_ONLY 2
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static int
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utf8_equal_string (JCF *jcf, int index, const char * value)
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{
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if (CPOOL_INDEX_IN_RANGE (&jcf->cpool, index)
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&& JPOOL_TAG (jcf, index) == CONSTANT_Utf8)
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{
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int len = strlen (value);
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if (JPOOL_UTF_LENGTH (jcf, index) == len
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&& memcmp (JPOOL_UTF_DATA (jcf, index), value, len) == 0)
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return 1;
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}
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return 0;
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}
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#define HANDLE_MAGIC(MAGIC, MINOR, MAJOR) \
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this_class_index = 0; \
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if (flag_print_class_info) \
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fprintf (out, \
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"Magic number: 0x%0lx, minor_version: %ld, major_version: %ld.\n",\
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(unsigned long) MAGIC, (long) MINOR, (long) MAJOR)
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#define HANDLE_START_CONSTANT_POOL(COUNT) \
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if (flag_print_constant_pool) \
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fprintf (out, "\nConstant pool (count: %d):\n", COUNT)
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#define HANDLE_SOURCEFILE(INDEX) \
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{ fprintf (out, "Attribute "); \
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print_constant_terse (out, jcf, attribute_name, CONSTANT_Utf8); \
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fprintf (out, ", length:%ld, #%d=", (long) attribute_length, INDEX); \
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print_constant_terse (out, jcf, INDEX, CONSTANT_Utf8); fputc ('\n', out); }
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#define HANDLE_CLASS_INFO(ACCESS_FLAGS, THIS, SUPER, INTERFACES_COUNT) \
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this_class_index = THIS; \
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class_access_flags = ACCESS_FLAGS; \
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if (flag_print_class_info) \
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{ fprintf (out, "\nAccess flags: 0x%x", ACCESS_FLAGS); \
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print_access_flags (out, ACCESS_FLAGS, 'c'); \
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fputc ('\n', out); \
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fprintf (out, "This class: "); \
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print_constant_terse_with_index (out, jcf, THIS, CONSTANT_Class); \
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if (flag_print_constant_pool || SUPER != 0) \
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fprintf (out, ", super: "); \
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if (flag_print_constant_pool) \
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{ \
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fprintf (out, "%d", SUPER); \
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if (SUPER != 0) \
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fputc ('=', out); \
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} \
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if (SUPER != 0) \
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print_constant_terse (out, jcf, SUPER, CONSTANT_Class); \
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fprintf (out, "\nInterfaces (count: %d):\n", INTERFACES_COUNT); \
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}
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#define IGNORE_ATTRIBUTE(JCF, NAME, NAME_LENGTH) \
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(flag_print_attributes <= 0)
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#define HANDLE_CLASS_INTERFACE(INDEX) \
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if (flag_print_class_info) \
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{ fprintf (out, "- Implements: "); \
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print_constant_terse_with_index (out, jcf, INDEX, CONSTANT_Class); \
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fputc ('\n', out); }
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#define HANDLE_START_FIELDS(FIELDS_COUNT) \
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if (flag_print_fields) \
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fprintf (out, "\nFields (count: %d):\n", FIELDS_COUNT)
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#define HANDLE_START_FIELD(ACCESS_FLAGS, NAME, SIGNATURE, ATTRIBUTE_COUNT) \
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if (flag_print_fields) \
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{ fprintf (out, "Field name:"); \
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print_constant_terse (out, jcf, NAME, CONSTANT_Utf8); \
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print_access_flags (out, ACCESS_FLAGS, 'f'); \
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fprintf (out, " Descriptor: "); \
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if (flag_print_constant_pool) \
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fprintf (out, "%d=", SIGNATURE); \
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print_signature (out, jcf, SIGNATURE, 0); \
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fputc ('\n', out); } \
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else \
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flag_print_attributes--;
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#define HANDLE_END_FIELD() \
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if (! flag_print_fields) \
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flag_print_attributes++;
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#define HANDLE_START_METHODS(METHODS_COUNT) \
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if (flag_print_methods) \
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fprintf (out, "\nMethods (count: %d):\n", METHODS_COUNT); \
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else \
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flag_print_attributes--;
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#define HANDLE_END_METHODS() \
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if (! flag_print_methods) \
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flag_print_attributes++;
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#define HANDLE_METHOD(ACCESS_FLAGS, NAME, SIGNATURE, ATTRIBUTE_COUNT) \
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{ \
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if (flag_print_methods) \
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{ \
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if (flag_javap_compatible) \
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{ \
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fprintf (out, " "); \
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print_access_flags (out, ACCESS_FLAGS, 'm'); \
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fputc (' ', out); \
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print_signature (out, jcf, SIGNATURE, PRINT_SIGNATURE_RESULT_ONLY); \
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fputc (' ', out); \
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print_constant_terse (out, jcf, NAME, CONSTANT_Utf8); \
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print_signature (out, jcf, SIGNATURE, PRINT_SIGNATURE_ARGS_ONLY); \
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fputc ('\n', out); \
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} \
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else \
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{ \
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fprintf (out, "\nMethod name:"); \
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print_constant_terse (out, jcf, NAME, CONSTANT_Utf8); \
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print_access_flags (out, ACCESS_FLAGS, 'm'); \
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fprintf (out, " Descriptor: "); \
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if (flag_print_constant_pool) \
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fprintf (out, "%d=", SIGNATURE); \
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print_signature (out, jcf, SIGNATURE, 0); \
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fputc ('\n', out); \
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} \
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} \
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if (flag_print_main && ACCESS_FLAGS == (ACC_STATIC|ACC_PUBLIC) \
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&& utf8_equal_string (jcf, NAME, "main") \
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&& utf8_equal_string (jcf, SIGNATURE, "([Ljava/lang/String;)V") \
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&& this_class_index > 0 \
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&& (class_access_flags & ACC_PUBLIC)) \
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{ \
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print_constant_terse(out, jcf, this_class_index, CONSTANT_Class); \
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fputc ('\n', out); \
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} \
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}
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#define COMMON_HANDLE_ATTRIBUTE(JCF, INDEX, LENGTH) \
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( fprintf (out, "Attribute "), \
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print_constant_terse (out, jcf, INDEX, CONSTANT_Utf8), \
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fprintf (out, ", length:%ld", (long) LENGTH) )
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#define HANDLE_CONSTANTVALUE(VALUE_INDEX) \
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( COMMON_HANDLE_ATTRIBUTE(JCF, attribute_name, attribute_length), \
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fprintf (out, ", value: "), \
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print_constant_ref (out, jcf, VALUE_INDEX), \
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fprintf (out, "\n") )
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#define HANDLE_CODE_ATTRIBUTE(MAX_STACK, MAX_LOCALS, CODE_LENGTH) \
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{ COMMON_HANDLE_ATTRIBUTE(JCF, attribute_name, attribute_length); \
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fprintf (out, ", max_stack:%ld, max_locals:%ld, code_length:%ld\n", \
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(long) MAX_STACK, (long) MAX_LOCALS, (long) CODE_LENGTH); \
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disassemble_method (jcf, jcf->read_ptr, CODE_LENGTH); }
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#define HANDLE_EXCEPTION_TABLE(ENTRIES, COUNT) \
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print_exception_table (jcf, ENTRIES, COUNT)
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#define HANDLE_EXCEPTIONS_ATTRIBUTE(COUNT) \
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{ int n = (COUNT); int i; \
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COMMON_HANDLE_ATTRIBUTE(JCF, attribute_name, attribute_length); \
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fprintf (out, ", count: %d\n", n); \
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for (i = 0; i < n; i++) {\
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int ex_index = JCF_readu2 (jcf); \
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fprintf (out, "%3d: ", i); \
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print_constant_ref (out, jcf, ex_index); \
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fputc ('\n', out); } }
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#define HANDLE_LOCALVARIABLETABLE_ATTRIBUTE(COUNT) \
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{ int n = (COUNT); int i; \
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COMMON_HANDLE_ATTRIBUTE(JCF, attribute_name, attribute_length); \
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fprintf (out, ", count: %d\n", n); \
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for (i = 0; i < n; i++) {\
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int start_pc = JCF_readu2 (jcf); \
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int length = JCF_readu2 (jcf); \
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int name_index = JCF_readu2 (jcf); \
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int signature_index = JCF_readu2 (jcf); \
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int slot = JCF_readu2 (jcf); \
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fprintf (out, " slot#%d: name: ", slot); \
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if (flag_print_constant_pool) \
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fprintf (out, "%d=", name_index); \
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print_name (out, jcf, name_index); \
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fprintf (out, ", type: "); \
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if (flag_print_constant_pool) \
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fprintf (out, "%d=", signature_index); \
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print_signature (out, jcf, signature_index, 0); \
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fprintf (out, " (pc: %d length: %d)\n", start_pc, length); }}
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#define HANDLE_LOCALVARIABLETYPETABLE_ATTRIBUTE(COUNT) \
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{ int n = (COUNT); int i; \
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COMMON_HANDLE_ATTRIBUTE(JCF, attribute_name, attribute_length); \
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fprintf (out, ", count: %d\n", n); \
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for (i = 0; i < n; i++) { \
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int start_pc = JCF_readu2 (jcf); \
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int length = JCF_readu2 (jcf); \
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int name_index = JCF_readu2 (jcf); \
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int signature_index = JCF_readu2 (jcf); \
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int slot = JCF_readu2 (jcf); \
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fprintf (out, " slot#%d: name: ", slot); \
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if (flag_print_constant_pool) \
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fprintf (out, "%d=", name_index); \
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print_name (out, jcf, name_index); \
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fprintf (out, ", type: "); \
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if (flag_print_constant_pool) \
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fprintf (out, "%d=", signature_index); \
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print_signature (out, jcf, signature_index, 0); \
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fprintf (out, " (pc: %d length: %d)\n", start_pc, length); }}
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#define HANDLE_LINENUMBERTABLE_ATTRIBUTE(COUNT) \
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{ int n = (COUNT); int i; \
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COMMON_HANDLE_ATTRIBUTE(jcf, attribute_name, attribute_length); \
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fprintf (out, ", count: %d\n", n); \
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if (flag_disassemble_methods) \
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for (i = 0; i < n; i++) {\
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int start_pc = JCF_readu2 (jcf); \
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int line_number = JCF_readu2 (jcf); \
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fprintf (out, " line: %d at pc: %d\n", line_number, start_pc); }\
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else \
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JCF_SKIP (jcf, 4 * n); }
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#define HANDLE_INNERCLASSES_ATTRIBUTE(COUNT) \
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{ int n = (COUNT); \
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COMMON_HANDLE_ATTRIBUTE(jcf, attribute_name, attribute_length); \
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while (n--) \
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{ \
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uint16 inner_class_info_index = JCF_readu2 (jcf); \
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uint16 outer_class_info_index = JCF_readu2 (jcf); \
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uint16 inner_name_index = JCF_readu2 (jcf); \
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uint16 inner_class_access_flags = JCF_readu2 (jcf); \
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\
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if (flag_print_class_info) \
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{ \
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fprintf (out, "\n inner: "); \
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if (inner_class_info_index == 0) \
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fprintf (out, " (no inner info index)"); \
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else \
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print_constant_terse_with_index (out, jcf, \
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inner_class_info_index, \
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CONSTANT_Class); \
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if (inner_name_index == 0) \
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fprintf (out, " (anonymous)"); \
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else if (verbose || flag_print_constant_pool) \
|
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{ \
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fprintf (out, " ("); \
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print_constant_terse_with_index (out, jcf, inner_name_index, \
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CONSTANT_Utf8); \
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fputc (')', out); \
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} \
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fprintf (out, ", access flags: 0x%x", inner_class_access_flags); \
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print_access_flags (out, inner_class_access_flags, 'c'); \
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fprintf (out, ", outer class: "); \
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if (outer_class_info_index == 0) \
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fprintf (out, "(not a member)"); \
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||
else \
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print_constant_terse_with_index (out, jcf, \
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outer_class_info_index, \
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||
CONSTANT_Class); \
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||
} \
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||
} \
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||
if (flag_print_class_info) \
|
||
fputc ('\n', out); \
|
||
}
|
||
|
||
#define HANDLE_SOURCEDEBUGEXTENSION_ATTRIBUTE(LENGTH) \
|
||
{ int i, n = (LENGTH), c = 0; \
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COMMON_HANDLE_ATTRIBUTE(jcf, attribute_name, attribute_length); \
|
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fputc ('\n', out); \
|
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for (i = 0; i < n; i++) { c = JCF_readu(jcf); fputc(c, out); } \
|
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if (c != '\r' && c != '\n') fputc('\n', out); }
|
||
|
||
#define HANDLE_ENCLOSINGMETHOD_ATTRIBUTE() \
|
||
{ uint16 class_index, method_index; \
|
||
COMMON_HANDLE_ATTRIBUTE(jcf, attribute_name, attribute_length); \
|
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class_index = JCF_readu2 (jcf); \
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method_index = JCF_readu2 (jcf); \
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fprintf (out, "\n Class: "); \
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print_constant_terse_with_index (out, jcf, class_index, CONSTANT_Class); \
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||
fprintf (out, "\n Method: "); \
|
||
print_constant_terse_with_index (out, jcf, method_index, \
|
||
CONSTANT_NameAndType); \
|
||
fputc ('\n', out); \
|
||
}
|
||
|
||
#define HANDLE_SIGNATURE_ATTRIBUTE() \
|
||
{ \
|
||
uint16 signature; \
|
||
COMMON_HANDLE_ATTRIBUTE(jcf, attribute_name, attribute_length); \
|
||
signature = JCF_readu2 (jcf); \
|
||
fprintf (out, "\n Value: "); \
|
||
print_constant_terse_with_index (out, jcf, signature, CONSTANT_Utf8); \
|
||
fputc ('\n', out); \
|
||
}
|
||
|
||
#define HANDLE_RUNTIMEVISIBLEANNOTATIONS_ATTRIBUTE() \
|
||
{ \
|
||
COMMON_HANDLE_ATTRIBUTE(jcf, attribute_name, attribute_length); \
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||
print_annotations (out, jcf, 1); \
|
||
}
|
||
|
||
#define HANDLE_RUNTIMEINVISIBLEANNOTATIONS_ATTRIBUTE() \
|
||
{ \
|
||
COMMON_HANDLE_ATTRIBUTE(jcf, attribute_name, attribute_length); \
|
||
print_annotations (out, jcf, 1); \
|
||
}
|
||
|
||
#define HANDLE_RUNTIMEVISIBLEPARAMETERANNOTATIONS_ATTRIBUTE() \
|
||
{ \
|
||
COMMON_HANDLE_ATTRIBUTE(jcf, attribute_name, attribute_length); \
|
||
print_parameter_annotations (out, jcf, 1); \
|
||
}
|
||
|
||
#define HANDLE_RUNTIMEINVISIBLEPARAMETERANNOTATIONS_ATTRIBUTE() \
|
||
{ \
|
||
COMMON_HANDLE_ATTRIBUTE(jcf, attribute_name, attribute_length); \
|
||
print_parameter_annotations (out, jcf, 1); \
|
||
}
|
||
|
||
#define HANDLE_ANNOTATIONDEFAULT_ATTRIBUTE() \
|
||
{ \
|
||
COMMON_HANDLE_ATTRIBUTE(jcf, attribute_name, attribute_length); \
|
||
print_element_value (out, jcf, 1); \
|
||
}
|
||
|
||
#define HANDLE_BOOTSTRAP_METHODS_ATTRIBUTE() \
|
||
{ \
|
||
COMMON_HANDLE_ATTRIBUTE(jcf, attribute_name, attribute_length); \
|
||
fputc ('\n', out); jcf_parse_bootstrap_methods (jcf, attribute_length); \
|
||
}
|
||
|
||
#define HANDLE_END_BOOTSTRAP_METHODS(NUM_METHODS) \
|
||
{ \
|
||
int i; \
|
||
for (i = 0; i < NUM_METHODS; i++) \
|
||
{ \
|
||
bootstrap_method *m = &jcf->bootstrap_methods.methods[i]; \
|
||
fprintf (out, " %d: ", i); \
|
||
print_constant (out, jcf, m->method_ref, 1); \
|
||
fprintf (out, "\n"); \
|
||
} \
|
||
}
|
||
|
||
#define PROCESS_OTHER_ATTRIBUTE(JCF, INDEX, LENGTH) \
|
||
{ COMMON_HANDLE_ATTRIBUTE(JCF, INDEX, LENGTH); \
|
||
fputc ('\n', out); JCF_SKIP (JCF, LENGTH); }
|
||
|
||
#define START_FINAL_ATTRIBUTES(ATTRIBUTES_COUNT) \
|
||
if (flag_print_attributes > 0) \
|
||
fprintf (out, "\nAttributes (count: %d):\n", attributes_count);
|
||
|
||
#include "javaop.h"
|
||
|
||
|
||
|
||
static void
|
||
indent (FILE *stream, int level)
|
||
{
|
||
int i;
|
||
for (i = 0; i < level; ++i)
|
||
fprintf (stream, " ");
|
||
}
|
||
|
||
static void
|
||
print_element_value (FILE *stream, JCF *jcf, int level)
|
||
{
|
||
uint8 tag = JCF_readu (jcf);
|
||
indent (stream, level);
|
||
switch (tag)
|
||
{
|
||
case 'B':
|
||
case 'C':
|
||
case 'S':
|
||
case 'Z':
|
||
case 'I':
|
||
{
|
||
uint16 cindex = JCF_readu2 (jcf);
|
||
print_constant_terse_with_index (stream, jcf, cindex,
|
||
CONSTANT_Integer);
|
||
}
|
||
break;
|
||
case 'D':
|
||
{
|
||
uint16 cindex = JCF_readu2 (jcf);
|
||
print_constant_terse_with_index (stream, jcf, cindex,
|
||
CONSTANT_Double);
|
||
}
|
||
break;
|
||
case 'F':
|
||
{
|
||
uint16 cindex = JCF_readu2 (jcf);
|
||
print_constant_terse_with_index (stream, jcf, cindex,
|
||
CONSTANT_Float);
|
||
}
|
||
break;
|
||
case 'J':
|
||
{
|
||
uint16 cindex = JCF_readu2 (jcf);
|
||
print_constant_terse_with_index (stream, jcf, cindex,
|
||
CONSTANT_Long);
|
||
}
|
||
break;
|
||
case 's':
|
||
{
|
||
uint16 cindex = JCF_readu2 (jcf);
|
||
/* Despite what the JVM spec says, compilers generate a Utf8
|
||
constant here, not a String. */
|
||
print_constant_terse_with_index (stream, jcf, cindex,
|
||
CONSTANT_Utf8);
|
||
}
|
||
break;
|
||
|
||
case 'e':
|
||
{
|
||
uint16 type_name_index = JCF_readu2 (jcf);
|
||
uint16 const_name_index = JCF_readu2 (jcf);
|
||
fprintf (stream, "enum class: ");
|
||
print_constant_terse_with_index (stream, jcf, type_name_index,
|
||
CONSTANT_Utf8);
|
||
fprintf (stream, "\n");
|
||
indent (stream, level);
|
||
fprintf (stream, "Field: ");
|
||
print_constant_terse_with_index (stream, jcf, const_name_index,
|
||
CONSTANT_Utf8);
|
||
}
|
||
break;
|
||
case 'c':
|
||
{
|
||
uint16 class_info_index = JCF_readu2 (jcf);
|
||
print_constant_terse_with_index (stream, jcf, class_info_index,
|
||
CONSTANT_Utf8);
|
||
}
|
||
break;
|
||
case '@':
|
||
{
|
||
fprintf (stream, "Annotation:\n");
|
||
print_annotation (stream, jcf, level + 1);
|
||
}
|
||
break;
|
||
case '[':
|
||
{
|
||
uint16 n_array_elts = JCF_readu2 (jcf);
|
||
fprintf (stream, "array[%d]: [\n", (int) n_array_elts);
|
||
while (n_array_elts--)
|
||
print_element_value (stream, jcf, level + 1);
|
||
indent (stream, level);
|
||
fprintf (stream, "]");
|
||
}
|
||
break;
|
||
default:
|
||
fprintf (stream, "Unexpected tag value: %d", (int) tag);
|
||
break;
|
||
}
|
||
fputc ('\n', stream);
|
||
}
|
||
|
||
static void
|
||
print_annotation (FILE *stream, JCF *jcf, int level)
|
||
{
|
||
uint16 type_index = JCF_readu2 (jcf);
|
||
uint16 npairs = JCF_readu2 (jcf);
|
||
fprintf (stream, "\n");
|
||
indent (stream, level);
|
||
fprintf (stream, "Annotation name: ");
|
||
print_constant_terse_with_index (stream, jcf, type_index,
|
||
CONSTANT_Utf8);
|
||
if (npairs)
|
||
{
|
||
fprintf (stream, "\n");
|
||
while (npairs--)
|
||
{
|
||
uint16 name_index = JCF_readu2 (jcf);
|
||
indent (stream, level + 1);
|
||
fprintf (stream, "Name: ");
|
||
print_constant_terse_with_index (stream, jcf, name_index,
|
||
CONSTANT_Utf8);
|
||
fprintf (stream, "\n");
|
||
print_element_value (stream, jcf, level + 2);
|
||
}
|
||
}
|
||
}
|
||
|
||
static void
|
||
print_annotations (FILE *stream, JCF *jcf, int level)
|
||
{
|
||
uint16 num = JCF_readu2 (jcf);
|
||
while (num--)
|
||
print_annotation (stream, jcf, level);
|
||
}
|
||
|
||
static void
|
||
print_parameter_annotations (FILE *stream, JCF *jcf, int level)
|
||
{
|
||
uint8 nparams = JCF_readu (jcf);
|
||
uint8 i;
|
||
for (i = 0; i < nparams; ++i)
|
||
{
|
||
indent (stream, level);
|
||
fprintf (stream, "Parameter annotations (%d):\n", (int) i);
|
||
print_annotations (stream, jcf, level + 1);
|
||
}
|
||
}
|
||
|
||
|
||
|
||
static void
|
||
print_constant_ref (FILE *stream, JCF *jcf, int index)
|
||
{
|
||
if (index <= 0 || index >= JPOOL_SIZE(jcf))
|
||
fprintf (stream, "<out of range>");
|
||
else
|
||
{
|
||
if (flag_print_constant_pool)
|
||
fprintf (stream, "#%d=", index);
|
||
fputc ('<', stream);
|
||
print_constant (stream, jcf, index, 1);
|
||
fputc ('>', stream);
|
||
}
|
||
}
|
||
|
||
/* Print the access flags given by FLAGS.
|
||
The CONTEXT is one of 'c' (class flags), 'f' (field flags),
|
||
or 'm' (method flags). */
|
||
|
||
static void
|
||
print_access_flags (FILE *stream, uint16 flags, char context)
|
||
{
|
||
if (flags & ACC_PUBLIC) fprintf (stream, " public");
|
||
if (flags & ACC_PRIVATE) fprintf (stream, " private");
|
||
if (flags & ACC_PROTECTED) fprintf (stream, " protected");
|
||
if (flags & ACC_ABSTRACT) fprintf (stream, " abstract");
|
||
if (flags & ACC_STATIC) fprintf (stream, " static");
|
||
if (flags & ACC_FINAL) fprintf (stream, " final");
|
||
if (flags & ACC_TRANSIENT)
|
||
fprintf (stream, context == 'm' ? " varargs" : " transient");
|
||
if (flags & ACC_VOLATILE)
|
||
fprintf (stream, context == 'm' ? " bridge" : " volatile");
|
||
if (flags & ACC_NATIVE) fprintf (stream, " native");
|
||
if (flags & ACC_SYNCHRONIZED)
|
||
{
|
||
if (context == 'c')
|
||
fprintf (stream, " super");
|
||
else
|
||
fprintf (stream, " synchronized");
|
||
}
|
||
if (flags & ACC_INTERFACE)
|
||
fprintf (stream, (flags & ACC_ANNOTATION) ? " @interface" : " interface");
|
||
if (flags & ACC_ENUM) fprintf (stream, " enum");
|
||
if (flags & ACC_STRICT) fprintf (stream, " strictfp");
|
||
if (flags & ACC_SYNTHETIC) fprintf (stream, " synthetic");
|
||
}
|
||
|
||
|
||
static void
|
||
print_name (FILE* stream, JCF* jcf, int name_index)
|
||
{
|
||
if (JPOOL_TAG (jcf, name_index) != CONSTANT_Utf8)
|
||
fprintf (stream, "<not a UTF8 constant>");
|
||
else
|
||
jcf_print_utf8 (stream, JPOOL_UTF_DATA (jcf,name_index),
|
||
JPOOL_UTF_LENGTH (jcf, name_index));
|
||
}
|
||
|
||
/* If the type of the constant at INDEX matches EXPECTED,
|
||
print it tersely, otherwise more verbosely. */
|
||
|
||
static void
|
||
print_constant_terse (FILE *out, JCF *jcf, int index, int expected)
|
||
{
|
||
if (! CPOOL_INDEX_IN_RANGE (&jcf->cpool, index))
|
||
fprintf (out, "<constant pool index %d not in range>", index);
|
||
else if (JPOOL_TAG (jcf, index) != expected)
|
||
{
|
||
fprintf (out, "<Unexpected constant type ");
|
||
print_constant (out, jcf, index, 1);
|
||
fprintf (out, ">");
|
||
}
|
||
else
|
||
print_constant (out, jcf, index, 0);
|
||
}
|
||
|
||
static void
|
||
print_constant_terse_with_index (FILE *out, JCF *jcf, int index, int expected)
|
||
{
|
||
if (flag_print_constant_pool)
|
||
fprintf (out, "%d=", index);
|
||
print_constant_terse (out, jcf, index, expected);
|
||
}
|
||
|
||
/* Print the constant at INDEX in JCF's constant pool.
|
||
If verbosity==0, print very tersely (no extraneous text).
|
||
If verbosity==1, prefix the type of the constant.
|
||
If verbosity==2, add more descriptive text. */
|
||
|
||
static void
|
||
print_constant (FILE *out, JCF *jcf, int index, int verbosity)
|
||
{
|
||
int j, n;
|
||
jlong num;
|
||
const char *str;
|
||
int kind = JPOOL_TAG (jcf, index);
|
||
switch (kind)
|
||
{
|
||
case CONSTANT_Class:
|
||
n = JPOOL_USHORT1 (jcf, index);
|
||
if (verbosity > 0)
|
||
{
|
||
if (verbosity > 1)
|
||
fprintf (out, "Class name: %d=", n);
|
||
else
|
||
fprintf (out, "Class ");
|
||
}
|
||
if (! CPOOL_INDEX_IN_RANGE (&jcf->cpool, n))
|
||
fprintf (out, "<out of range>");
|
||
else if (verbosity < 2 && JPOOL_TAG (jcf, n) == CONSTANT_Utf8)
|
||
{
|
||
int len = JPOOL_UTF_LENGTH (jcf, n);
|
||
jcf_print_utf8_replace (out, JPOOL_UTF_DATA(jcf,n), len, '/', '.');
|
||
}
|
||
else
|
||
print_constant_terse (out, jcf, n, CONSTANT_Utf8);
|
||
break;
|
||
case CONSTANT_Fieldref:
|
||
str = "Field"; goto field_or_method;
|
||
case CONSTANT_Methodref:
|
||
str = "Method"; goto field_or_method;
|
||
case CONSTANT_InterfaceMethodref:
|
||
str = "InterfaceMethod"; goto field_or_method;
|
||
field_or_method:
|
||
{
|
||
uint16 tclass = JPOOL_USHORT1 (jcf, index);
|
||
uint16 name_and_type = JPOOL_USHORT2 (jcf, index);
|
||
if (verbosity == 2)
|
||
fprintf (out, "%sref class: %d=", str, tclass);
|
||
else if (verbosity > 0)
|
||
fprintf (out, "%s ", str);
|
||
print_constant_terse (out, jcf, tclass, CONSTANT_Class);
|
||
if (verbosity < 2)
|
||
fprintf (out, ".");
|
||
else
|
||
fprintf (out, " name_and_type: %d=<", name_and_type);
|
||
print_constant_terse (out, jcf, name_and_type, CONSTANT_NameAndType);
|
||
if (verbosity == 2)
|
||
fputc ('>', out);
|
||
}
|
||
break;
|
||
case CONSTANT_String:
|
||
j = JPOOL_USHORT1 (jcf, index);
|
||
if (verbosity > 0)
|
||
{
|
||
if (verbosity > 1)
|
||
fprintf (out, "String %d=", j);
|
||
else
|
||
fprintf (out, "String ");
|
||
}
|
||
print_constant_terse (out, jcf, j, CONSTANT_Utf8);
|
||
break;
|
||
case CONSTANT_Integer:
|
||
if (verbosity > 0)
|
||
fprintf (out, "Integer ");
|
||
num = JPOOL_INT (jcf, index);
|
||
goto integer;
|
||
case CONSTANT_Long:
|
||
if (verbosity > 0)
|
||
fprintf (out, "Long ");
|
||
num = JPOOL_LONG (jcf, index);
|
||
goto integer;
|
||
integer:
|
||
{
|
||
char buffer[25];
|
||
format_int (buffer, num, 10);
|
||
fprintf (out, "%s", buffer);
|
||
if (verbosity > 1)
|
||
{
|
||
format_uint (buffer, (uint64)num, 16);
|
||
fprintf (out, "=0x%s", buffer);
|
||
}
|
||
}
|
||
break;
|
||
case CONSTANT_Float:
|
||
{
|
||
jfloat fnum = JPOOL_FLOAT (jcf, index);
|
||
|
||
if (verbosity > 0)
|
||
fputs ("Float ", out);
|
||
|
||
if (fnum.negative)
|
||
putc ('-', out);
|
||
|
||
if (JFLOAT_FINITE (fnum))
|
||
{
|
||
int dummy;
|
||
int exponent = fnum.exponent - JFLOAT_EXP_BIAS;
|
||
double f;
|
||
uint32 mantissa = fnum.mantissa;
|
||
if (fnum.exponent == 0)
|
||
/* Denormal. */
|
||
exponent++;
|
||
else
|
||
/* Normal; add the implicit bit. */
|
||
mantissa |= ((uint32)1 << 23);
|
||
|
||
f = frexp ((float) mantissa, &dummy);
|
||
f = ldexp (f, exponent + 1);
|
||
fprintf (out, "%.10g", f);
|
||
}
|
||
else
|
||
{
|
||
if (fnum.mantissa == 0)
|
||
fputs ("Inf", out);
|
||
else if (fnum.mantissa & JFLOAT_QNAN_MASK)
|
||
fprintf (out, "QNaN(%u)", (fnum.mantissa & ~JFLOAT_QNAN_MASK));
|
||
else
|
||
fprintf (out, "SNaN(%u)", (fnum.mantissa & ~JFLOAT_QNAN_MASK));
|
||
}
|
||
|
||
if (verbosity > 1)
|
||
fprintf (out, ", bits = 0x%08lx", (unsigned long) JPOOL_UINT (jcf, index));
|
||
|
||
break;
|
||
}
|
||
case CONSTANT_Double:
|
||
{
|
||
jdouble dnum = JPOOL_DOUBLE (jcf, index);
|
||
|
||
if (verbosity > 0)
|
||
fputs ("Double ", out);
|
||
|
||
if (dnum.negative)
|
||
putc ('-', out);
|
||
|
||
if (JDOUBLE_FINITE (dnum))
|
||
{
|
||
int dummy;
|
||
int exponent = dnum.exponent - JDOUBLE_EXP_BIAS;
|
||
double d;
|
||
uint64 mantissa = ((((uint64) dnum.mantissa0) << 32)
|
||
+ dnum.mantissa1);
|
||
if (dnum.exponent == 0)
|
||
/* Denormal. */
|
||
exponent++;
|
||
else
|
||
/* Normal; add the implicit bit. */
|
||
mantissa |= ((uint64)1 << 52);
|
||
|
||
d = frexp ((double) mantissa, &dummy);
|
||
d = ldexp (d, exponent + 1);
|
||
fprintf (out, "%.20g", d);
|
||
}
|
||
else
|
||
{
|
||
uint64 mantissa = dnum.mantissa0 & ~JDOUBLE_QNAN_MASK;
|
||
mantissa = (mantissa << 32) + dnum.mantissa1;
|
||
|
||
if (dnum.mantissa0 == 0 && dnum.mantissa1 == 0)
|
||
fputs ("Inf", out);
|
||
else if (dnum.mantissa0 & JDOUBLE_QNAN_MASK)
|
||
fprintf (out, "QNaN(%" HOST_LONG_LONG_FORMAT "u)",
|
||
(unsigned long long)mantissa);
|
||
else
|
||
fprintf (out, "SNaN(%" HOST_LONG_LONG_FORMAT "u)",
|
||
(unsigned long long)mantissa);
|
||
}
|
||
if (verbosity > 1)
|
||
{
|
||
int32 hi, lo;
|
||
hi = JPOOL_UINT (jcf, index);
|
||
lo = JPOOL_UINT (jcf, index + 1);
|
||
fprintf (out, ", bits = 0x%08lx%08lx", (unsigned long) hi,
|
||
(unsigned long) lo);
|
||
}
|
||
break;
|
||
}
|
||
case CONSTANT_NameAndType:
|
||
{
|
||
uint16 name = JPOOL_USHORT1 (jcf, index);
|
||
uint16 sig = JPOOL_USHORT2 (jcf, index);
|
||
if (verbosity > 0)
|
||
{
|
||
if (verbosity > 1)
|
||
fprintf (out, "NameAndType name: %d=", name);
|
||
else
|
||
fprintf (out, "NameAndType ");
|
||
}
|
||
print_name (out, jcf, name);
|
||
if (verbosity <= 1)
|
||
fputc (' ', out);
|
||
else
|
||
fprintf (out, ", signature: %d=", sig);
|
||
print_signature (out, jcf, sig, 0);
|
||
}
|
||
break;
|
||
case CONSTANT_Utf8:
|
||
{
|
||
const unsigned char *str = JPOOL_UTF_DATA (jcf, index);
|
||
int length = JPOOL_UTF_LENGTH (jcf, index);
|
||
if (verbosity > 0)
|
||
{ /* Print as 8-bit bytes. */
|
||
fputs ("Utf8: \"", out);
|
||
while (--length >= 0)
|
||
jcf_print_char (out, *str++);
|
||
}
|
||
else
|
||
{ /* Print as Unicode. */
|
||
fputc ('\"', out);
|
||
jcf_print_utf8 (out, str, length);
|
||
}
|
||
fputc ('\"', out);
|
||
}
|
||
break;
|
||
case CONSTANT_MethodHandle:
|
||
{
|
||
int kind = JPOOL_USHORT1 (jcf, index);
|
||
if (verbosity > 0)
|
||
fprintf (out, "MethodHandle kind: %d=", kind);
|
||
switch(kind) {
|
||
case 1:
|
||
case 2:
|
||
case 3:
|
||
case 4:
|
||
if (verbosity > 0)
|
||
fprintf (out, "Fieldref: %ld=", (long) JPOOL_USHORT2 (jcf, index));
|
||
print_constant (out, jcf, JPOOL_USHORT2 (jcf, index), 0);
|
||
case 5:
|
||
case 6:
|
||
case 7:
|
||
case 8:
|
||
if (verbosity > 0)
|
||
fprintf (out, "Methodref: %ld=", (long) JPOOL_USHORT2 (jcf, index));
|
||
print_constant (out, jcf, JPOOL_USHORT2 (jcf, index), 0);
|
||
break;
|
||
case 9:
|
||
if (verbosity > 0)
|
||
fprintf (out, "InterfaceMethodref: %ld=",
|
||
(long) JPOOL_USHORT2 (jcf, index));
|
||
print_constant (out, jcf, JPOOL_USHORT2 (jcf, index), 0);
|
||
break;
|
||
}
|
||
break;
|
||
}
|
||
case CONSTANT_MethodType:
|
||
if (verbosity > 0)
|
||
fprintf (out, "MethodType %ld: ", (long) JPOOL_USHORT1 (jcf, index));
|
||
print_signature (out, jcf, JPOOL_USHORT1 (jcf, index), 0);
|
||
break;
|
||
case CONSTANT_InvokeDynamic:
|
||
{
|
||
uint16 name_and_type = JPOOL_USHORT2 (jcf, index);
|
||
if (verbosity > 0)
|
||
fprintf (out, "InvokeDynamic: ");
|
||
fprintf (out, "bootstrap_method: %ld ",
|
||
(long) JPOOL_USHORT1 (jcf, index));
|
||
if (verbosity == 2)
|
||
fprintf (out, " name_and_type: %d=<", name_and_type);
|
||
print_constant_terse (out, jcf, name_and_type, CONSTANT_NameAndType);
|
||
if (verbosity == 2)
|
||
fputc ('>', out);
|
||
break;
|
||
}
|
||
default:
|
||
fprintf (out, "(Unknown constant type %d)", kind);
|
||
}
|
||
}
|
||
|
||
static void
|
||
print_constant_pool (JCF *jcf)
|
||
{
|
||
int i;
|
||
for (i = 1; i < JPOOL_SIZE(jcf); i++)
|
||
{
|
||
int kind = JPOOL_TAG (jcf, i);
|
||
fprintf (out, "#%d: ", i);
|
||
print_constant (out, jcf, i, 2);
|
||
fprintf (out, "\n");
|
||
if (kind == CONSTANT_Double || kind == CONSTANT_Long)
|
||
i++; /* These take up two slots in the constant table */
|
||
}
|
||
}
|
||
|
||
static void
|
||
print_signature_type (FILE* stream, const unsigned char **ptr,
|
||
const unsigned char *limit)
|
||
{
|
||
int array_size;
|
||
if ((*ptr) >= limit)
|
||
return;
|
||
switch (*(*ptr))
|
||
{
|
||
case '[':
|
||
array_size = -1;
|
||
for ((*ptr)++; (*ptr) < limit && ISDIGIT (**ptr); (*ptr)++)
|
||
{
|
||
array_size = (array_size < 0 ? 0 : 10 * array_size) + *(*ptr) - '0';
|
||
}
|
||
print_signature_type (stream, ptr, limit);
|
||
if (array_size == -1)
|
||
fprintf (stream, "[]");
|
||
else
|
||
fprintf (stream, "[%d]", array_size);
|
||
break;
|
||
case '(':
|
||
{
|
||
int nargs = 0;
|
||
fputc (*(*ptr)++, stream);
|
||
for (; **ptr != ')' && *ptr < limit; nargs++)
|
||
{
|
||
if (nargs > 0)
|
||
fputc (',', stream);
|
||
print_signature_type (stream, ptr, limit);
|
||
}
|
||
if (*ptr < limit)
|
||
{
|
||
fputc (*(*ptr)++, stream);
|
||
print_signature_type (stream, ptr, limit);
|
||
}
|
||
else
|
||
fprintf (stream, "???");
|
||
}
|
||
break;
|
||
|
||
case 'B': fprintf (stream, "byte"); (*ptr)++; break;
|
||
case 'C': fprintf (stream, "char"); (*ptr)++; break;
|
||
case 'D': fprintf (stream, "double"); (*ptr)++; break;
|
||
case 'F': fprintf (stream, "float"); (*ptr)++; break;
|
||
case 'S': fprintf (stream, "short"); (*ptr)++; break;
|
||
case 'I': fprintf (stream, "int"); (*ptr)++; break;
|
||
case 'J': fprintf (stream, "long"); (*ptr)++; break;
|
||
case 'Z': fprintf (stream, "boolean"); (*ptr)++; break;
|
||
case 'V': fprintf (stream, "void"); (*ptr)++; break;
|
||
|
||
case 'L':
|
||
for ((*ptr)++; (*ptr)<limit && *(*ptr) != ';'; (*ptr)++)
|
||
jcf_print_char (stream, *(*ptr) == '/' ? '.' : *(*ptr));
|
||
if (*(*ptr) == ';')
|
||
(*ptr)++;
|
||
break;
|
||
default:
|
||
jcf_print_char (stream, *(*ptr)++);
|
||
}
|
||
}
|
||
|
||
static void
|
||
print_signature (FILE* stream, JCF *jcf, int signature_index, int options)
|
||
{
|
||
if (JPOOL_TAG (jcf, signature_index) != CONSTANT_Utf8)
|
||
print_constant_terse (out, jcf, signature_index, CONSTANT_Utf8);
|
||
else
|
||
{
|
||
const unsigned char *str = JPOOL_UTF_DATA (jcf, signature_index);
|
||
int length = JPOOL_UTF_LENGTH (jcf, signature_index);
|
||
const unsigned char *limit;
|
||
limit = str + length;
|
||
if (str >= limit)
|
||
fprintf (stream, "<empty signature string>");
|
||
else
|
||
{
|
||
if (options & PRINT_SIGNATURE_RESULT_ONLY)
|
||
{
|
||
while (str < limit && *str++ != ')') ;
|
||
}
|
||
if (options & PRINT_SIGNATURE_ARGS_ONLY)
|
||
{
|
||
str++;
|
||
fputc ('(', stream);
|
||
while (str < limit && *str != ')')
|
||
{
|
||
print_signature_type (stream, &str, limit);
|
||
if (*str != ')')
|
||
fputs (", ", stream);
|
||
}
|
||
fputc (')', stream);
|
||
}
|
||
else
|
||
{
|
||
print_signature_type (stream, &str, limit);
|
||
if (str < limit)
|
||
{
|
||
fprintf (stream, "<junk:");
|
||
jcf_print_utf8 (stream, str, limit - str);
|
||
fputc ('>', stream);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
static void
|
||
print_exception_table (JCF *jcf, const unsigned char *entries, int count)
|
||
{
|
||
/* Print exception table. */
|
||
int i = count;
|
||
if (i > 0)
|
||
{
|
||
const unsigned char *ptr = entries;
|
||
fprintf (out, "Exceptions (count: %d):\n", i);
|
||
for (; --i >= 0; ptr+= 8)
|
||
{
|
||
int start_pc = GET_u2 (ptr);
|
||
int end_pc = GET_u2 (ptr+2);
|
||
int handler_pc = GET_u2 (ptr+4);
|
||
int catch_type = GET_u2 (ptr+6);
|
||
fprintf (out, " start: %d, end: %d, handler: %d, type: ",
|
||
start_pc, end_pc, handler_pc);
|
||
if (catch_type == 0)
|
||
fputs ("0 /* finally */", out);
|
||
else
|
||
print_constant_terse_with_index (out, jcf,
|
||
catch_type, CONSTANT_Class);
|
||
fputc ('\n', out);
|
||
}
|
||
}
|
||
}
|
||
|
||
#include "jcf-reader.c"
|
||
|
||
static void
|
||
process_class (JCF *jcf)
|
||
{
|
||
int code;
|
||
if (jcf_parse_preamble (jcf) != 0)
|
||
fprintf (stderr, _("Not a valid Java .class file.\n"));
|
||
|
||
/* Parse and possibly print constant pool */
|
||
code = jcf_parse_constant_pool (jcf);
|
||
if (code != 0)
|
||
{
|
||
fprintf (stderr, _("error while parsing constant pool\n"));
|
||
exit (FATAL_EXIT_CODE);
|
||
}
|
||
code = verify_constant_pool (jcf);
|
||
if (code > 0)
|
||
{
|
||
fprintf (stderr, _("error in constant pool entry #%d\n"), code);
|
||
exit (FATAL_EXIT_CODE);
|
||
}
|
||
if (flag_print_constant_pool)
|
||
print_constant_pool (jcf);
|
||
|
||
jcf_parse_class (jcf);
|
||
code = jcf_parse_fields (jcf);
|
||
if (code != 0)
|
||
{
|
||
fprintf (stderr, _("error while parsing fields\n"));
|
||
exit (FATAL_EXIT_CODE);
|
||
}
|
||
code = jcf_parse_methods (jcf);
|
||
if (code != 0)
|
||
{
|
||
fprintf (stderr, _("error while parsing methods\n"));
|
||
exit (FATAL_EXIT_CODE);
|
||
}
|
||
code = jcf_parse_final_attributes (jcf);
|
||
if (code != 0)
|
||
{
|
||
fprintf (stderr, _("error while parsing final attributes\n"));
|
||
exit (FATAL_EXIT_CODE);
|
||
}
|
||
jcf->filename = NULL;
|
||
}
|
||
|
||
|
||
|
||
/* This is used to mark options with no short value. */
|
||
#define LONG_OPT(Num) ((Num) + 128)
|
||
|
||
#define OPT_classpath LONG_OPT (0)
|
||
#define OPT_CLASSPATH OPT_classpath
|
||
#define OPT_bootclasspath LONG_OPT (1)
|
||
#define OPT_extdirs LONG_OPT (2)
|
||
#define OPT_HELP LONG_OPT (3)
|
||
#define OPT_VERSION LONG_OPT (4)
|
||
#define OPT_JAVAP LONG_OPT (5)
|
||
|
||
static const struct option options[] =
|
||
{
|
||
{ "classpath", required_argument, NULL, OPT_classpath },
|
||
{ "bootclasspath", required_argument, NULL, OPT_bootclasspath },
|
||
{ "extdirs", required_argument, NULL, OPT_extdirs },
|
||
{ "CLASSPATH", required_argument, NULL, OPT_CLASSPATH },
|
||
{ "help", no_argument, NULL, OPT_HELP },
|
||
{ "verbose", no_argument, NULL, 'v' },
|
||
{ "version", no_argument, NULL, OPT_VERSION },
|
||
{ "javap", no_argument, NULL, OPT_JAVAP },
|
||
{ "print-main", no_argument, &flag_print_main, 1 },
|
||
{ "print-constants", no_argument, &flag_print_constant_pool, 1 },
|
||
{ NULL, no_argument, NULL, 0 }
|
||
};
|
||
|
||
static void
|
||
usage (void)
|
||
{
|
||
fprintf (stderr, _("Try 'jcf-dump --help' for more information.\n"));
|
||
exit (1);
|
||
}
|
||
|
||
static void
|
||
help (void)
|
||
{
|
||
printf (_("Usage: jcf-dump [OPTION]... CLASS...\n\n"));
|
||
printf (_("Display contents of a class file in readable form.\n\n"));
|
||
printf (_(" -c Disassemble method bodies\n"));
|
||
printf (_(" --javap Generate output in 'javap' format\n"));
|
||
printf ("\n");
|
||
printf (_(" --classpath PATH Set path to find .class files\n"));
|
||
printf (_(" -IDIR Append directory to class path\n"));
|
||
printf (_(" --bootclasspath PATH Override built-in class path\n"));
|
||
printf (_(" --extdirs PATH Set extensions directory path\n"));
|
||
printf (_(" -o FILE Set output file name\n"));
|
||
printf ("\n");
|
||
printf (_(" --help Print this help, then exit\n"));
|
||
printf (_(" --version Print version number, then exit\n"));
|
||
printf (_(" -v, --verbose Print extra information while running\n"));
|
||
printf ("\n");
|
||
printf (_("For bug reporting instructions, please see:\n"
|
||
"%s.\n"), bug_report_url);
|
||
exit (0);
|
||
}
|
||
|
||
static void
|
||
version (void)
|
||
{
|
||
printf ("jcf-dump %s%s\n\n", pkgversion_string, version_string);
|
||
printf ("Copyright %s 2012 Free Software Foundation, Inc.\n", _("(C)"));
|
||
printf (_("This is free software; see the source for copying conditions. There is NO\n"
|
||
"warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"));
|
||
exit (0);
|
||
}
|
||
|
||
int
|
||
main (int argc, char** argv)
|
||
{
|
||
JCF jcf[1];
|
||
int argi, opt;
|
||
const char *p;
|
||
|
||
p = argv[0] + strlen (argv[0]);
|
||
while (p != argv[0] && !IS_DIR_SEPARATOR (p[-1]))
|
||
--p;
|
||
progname = p;
|
||
|
||
xmalloc_set_program_name (progname);
|
||
|
||
/* Unlock the stdio streams. */
|
||
unlock_std_streams ();
|
||
|
||
gcc_init_libintl ();
|
||
|
||
diagnostic_initialize (global_dc, 0);
|
||
|
||
if (argc <= 1)
|
||
{
|
||
fprintf (stderr, _("jcf-dump: no classes specified\n"));
|
||
usage ();
|
||
}
|
||
|
||
jcf_path_init ();
|
||
|
||
/* We use getopt_long_only to allow single `-' long options. For
|
||
some of our options this is more natural. */
|
||
while ((opt = getopt_long_only (argc, argv, "o:I:vc", options, NULL)) != -1)
|
||
{
|
||
switch (opt)
|
||
{
|
||
case 0:
|
||
/* Already handled. */
|
||
break;
|
||
|
||
case 'o':
|
||
output_file = optarg;
|
||
break;
|
||
|
||
case 'I':
|
||
jcf_path_include_arg (optarg);
|
||
break;
|
||
|
||
case 'v':
|
||
verbose++;
|
||
break;
|
||
|
||
case 'c':
|
||
flag_disassemble_methods = 1;
|
||
break;
|
||
|
||
case OPT_classpath:
|
||
jcf_path_classpath_arg (optarg);
|
||
break;
|
||
|
||
case OPT_bootclasspath:
|
||
jcf_path_bootclasspath_arg (optarg);
|
||
break;
|
||
|
||
case OPT_extdirs:
|
||
jcf_path_extdirs_arg (optarg);
|
||
break;
|
||
|
||
case OPT_HELP:
|
||
help ();
|
||
break;
|
||
|
||
case OPT_VERSION:
|
||
version ();
|
||
break;
|
||
|
||
case OPT_JAVAP:
|
||
flag_javap_compatible++;
|
||
flag_print_constant_pool = 0;
|
||
flag_print_attributes = 0;
|
||
break;
|
||
|
||
default:
|
||
usage ();
|
||
}
|
||
}
|
||
|
||
if (verbose && ! flag_javap_compatible)
|
||
flag_print_constant_pool = 1;
|
||
|
||
if (optind == argc)
|
||
{
|
||
fprintf (stderr, _("jcf-dump: no classes specified\n"));
|
||
usage ();
|
||
}
|
||
|
||
jcf_path_seal (verbose);
|
||
|
||
if (flag_print_main)
|
||
{
|
||
flag_print_fields = 0;
|
||
flag_print_methods = 0;
|
||
flag_print_constant_pool = 0;
|
||
flag_print_attributes = 0;
|
||
flag_print_class_info = 0;
|
||
}
|
||
|
||
if (output_file)
|
||
{
|
||
out = fopen (output_file, "w");
|
||
if (! out)
|
||
{
|
||
fprintf (stderr, _("Cannot open '%s' for output.\n"), output_file);
|
||
return FATAL_EXIT_CODE;
|
||
}
|
||
}
|
||
else
|
||
out = stdout;
|
||
|
||
if (optind >= argc)
|
||
{
|
||
fprintf (out, "Reading .class from <standard input>.\n");
|
||
open_class ("<stdio>", jcf, 0, NULL);
|
||
process_class (jcf);
|
||
}
|
||
else
|
||
{
|
||
for (argi = optind; argi < argc; argi++)
|
||
{
|
||
char *arg = argv[argi];
|
||
const char *class_filename = find_class (arg, strlen (arg), jcf);
|
||
if (class_filename == NULL)
|
||
class_filename = find_classfile (arg, jcf, NULL);
|
||
if (class_filename == NULL)
|
||
{
|
||
perror ("Could not find class");
|
||
return FATAL_EXIT_CODE;
|
||
}
|
||
JCF_FILL (jcf, 4);
|
||
if (GET_u4 (jcf->read_ptr) == ZIPMAGIC)
|
||
{
|
||
long compressed_size, member_size;
|
||
int compression_method, filename_length, extra_length;
|
||
const char *filename;
|
||
int total_length;
|
||
if (flag_print_class_info)
|
||
fprintf (out, "Reading classes from archive %s.\n",
|
||
class_filename);
|
||
for (;;)
|
||
{
|
||
int skip = 0;
|
||
jcf_filbuf_t save_filbuf = jcf->filbuf;
|
||
long magic = JCF_readu4_le (jcf);
|
||
if (magic == 0x02014b50 || magic == 0x06054b50)
|
||
break; /* got to central directory */
|
||
if (magic != 0x04034b50) /* ZIPMAGIC (little-endian) */
|
||
{
|
||
fprintf (stderr, _("bad format of .zip/.jar archive\n"));
|
||
return FATAL_EXIT_CODE;
|
||
}
|
||
JCF_FILL (jcf, 26);
|
||
JCF_SKIP (jcf, 2);
|
||
(void) /* general_purpose_bits = */ JCF_readu2_le (jcf);
|
||
compression_method = JCF_readu2_le (jcf);
|
||
JCF_SKIP (jcf, 8);
|
||
compressed_size = JCF_readu4_le (jcf);
|
||
member_size = JCF_readu4_le (jcf);
|
||
filename_length = JCF_readu2_le (jcf);
|
||
extra_length = JCF_readu2_le (jcf);
|
||
total_length = filename_length + extra_length
|
||
+ compressed_size;
|
||
if (jcf->read_end - jcf->read_ptr < total_length)
|
||
jcf_trim_old_input (jcf);
|
||
JCF_FILL (jcf, total_length);
|
||
filename = (const char *) jcf->read_ptr;
|
||
JCF_SKIP (jcf, filename_length);
|
||
JCF_SKIP (jcf, extra_length);
|
||
if (filename_length > 0
|
||
&& filename[filename_length-1] == '/')
|
||
{
|
||
if (flag_print_class_info)
|
||
fprintf (out, "[Skipping directory %.*s]\n",
|
||
filename_length, filename);
|
||
skip = 1;
|
||
}
|
||
else if (compression_method != 0)
|
||
{
|
||
if (flag_print_class_info)
|
||
fprintf (out, "[Skipping compressed file %.*s]\n",
|
||
filename_length, filename);
|
||
skip = 1;
|
||
}
|
||
else if (member_size < 4
|
||
|| GET_u4 (jcf->read_ptr) != 0xcafebabe)
|
||
{
|
||
if (flag_print_class_info)
|
||
fprintf (out, "[Skipping non-.class member %.*s]\n",
|
||
filename_length, filename);
|
||
skip = 1;
|
||
}
|
||
else
|
||
{
|
||
if (flag_print_class_info)
|
||
fprintf (out, "Reading class member: %.*s.\n",
|
||
filename_length, filename);
|
||
}
|
||
if (skip)
|
||
{
|
||
JCF_SKIP (jcf, compressed_size);
|
||
}
|
||
else
|
||
{
|
||
unsigned char *save_end;
|
||
jcf->filbuf = jcf_unexpected_eof;
|
||
save_end = jcf->read_end;
|
||
jcf->read_end = jcf->read_ptr + compressed_size;
|
||
process_class (jcf);
|
||
jcf->filbuf = save_filbuf;
|
||
jcf->read_end = save_end;
|
||
}
|
||
}
|
||
}
|
||
else
|
||
{
|
||
if (flag_print_class_info)
|
||
fprintf (out, "Reading .class from %s.\n", class_filename);
|
||
process_class (jcf);
|
||
}
|
||
JCF_FINISH(jcf);
|
||
}
|
||
}
|
||
|
||
return SUCCESS_EXIT_CODE;
|
||
}
|
||
|
||
|
||
|
||
static void
|
||
disassemble_method (JCF* jcf, const unsigned char *byte_ops, int len)
|
||
{
|
||
#undef PTR
|
||
int PC;
|
||
int i;
|
||
int saw_wide = 0;
|
||
if (flag_disassemble_methods == 0)
|
||
return;
|
||
#define BCODE byte_ops
|
||
for (PC = 0; PC < len;)
|
||
{
|
||
int oldpc = PC;
|
||
int saw_index;
|
||
jint INT_temp;
|
||
switch (byte_ops[PC++])
|
||
{
|
||
|
||
/* This is the actual code emitted for each of opcodes in javaops.def.
|
||
The actual opcode-specific stuff is handled by the OPKIND macro.
|
||
I.e. for an opcode whose OPKIND is BINOP, the BINOP will be called.
|
||
Those macros are defined below. The OPKINDs that do not have any
|
||
inline parameters (such as BINOP) and therefore do mot need anything
|
||
else to me printed out just use an empty body. */
|
||
|
||
#define JAVAOP(OPNAME, OPCODE, OPKIND, OPERAND_TYPE, OPERAND_VALUE) \
|
||
case OPCODE: \
|
||
fprintf (out, "%3d: %s", oldpc, #OPNAME); \
|
||
OPKIND(OPERAND_TYPE, OPERAND_VALUE); \
|
||
fputc ('\n', out); \
|
||
break;
|
||
|
||
#define CONST_INDEX_1 (saw_index = 1, IMMEDIATE_u1)
|
||
#define CONST_INDEX_2 (saw_index = 1, IMMEDIATE_u2)
|
||
#define VAR_INDEX_1 (saw_index = 1, IMMEDIATE_u1)
|
||
#define VAR_INDEX_2 (saw_index = 1, IMMEDIATE_u2)
|
||
|
||
#define CHECK_PC_IN_RANGE(PC) (PC < 0 || PC > len ? \
|
||
(fprintf(stderr, _("Bad byte codes.\n")), exit(-1), 0) : 1)
|
||
|
||
/* Print out operand (if not implied by the opcode) for PUSCH opcodes.
|
||
These all push a constant onto the opcode stack. */
|
||
#define PUSHC(OPERAND_TYPE, OPERAND_VALUE) \
|
||
saw_index = 0, i = (OPERAND_VALUE); \
|
||
if (oldpc+1 == PC) /* nothing */; \
|
||
else if (saw_index) fprintf (out, " "), print_constant_ref (out, jcf, i); \
|
||
else fprintf (out, " %d", i);
|
||
|
||
/* Print out operand (a local variable index) for LOAD opcodes.
|
||
These all push local variable onto the opcode stack. */
|
||
#define LOAD(OPERAND_TYPE, OPERAND_VALUE) \
|
||
INT_temp = saw_wide ? IMMEDIATE_u2 : (OPERAND_VALUE); goto load_store;
|
||
|
||
/* Handle STORE opcodes same as LOAD opcodes.
|
||
These all store a value from the opcode stack in a local variable. */
|
||
#define STORE LOAD
|
||
|
||
/* Handle more kind of opcodes. */
|
||
#define STACK(OPERAND_TYPE, OPERAND_VALUE) /* nothing */
|
||
#define UNOP(OPERAND_TYPE, OPERAND_VALUE) /* nothing */
|
||
#define BINOP(OPERAND_TYPE, OPERAND_VALUE) /* nothing */
|
||
#define CONVERT(OPERAND_TYPE, OPERAND_VALUE) /* nothing */
|
||
#define CONVERT2(OPERAND_TYPE, OPERAND_VALUE) /* nothing */
|
||
#define RETURN(OPERAND_TYPE, OPERAND_VALUE) /* nothing */
|
||
#define UNKNOWN(OPERAND_TYPE, OPERAND_VALUE) /* nothing */
|
||
|
||
/* Handle putfield and getfield opcodes, with static versions. */
|
||
#define FIELD(MAYBE_STATIC, PUT_OR_GET) \
|
||
fputc (' ', out); print_constant_ref (out, jcf, IMMEDIATE_u2)
|
||
|
||
/* Print operand for invoke opcodes. */
|
||
#define INVOKE(OPERAND_TYPE, OPERAND_VALUE) \
|
||
fputc (' ', out); print_constant_ref (out, jcf, IMMEDIATE_u2);\
|
||
if (OPERAND_VALUE) /* for invokeinterface */ \
|
||
{ int nargs = IMMEDIATE_u1; PC++; \
|
||
fprintf (out, " nargs:%d", nargs); }
|
||
|
||
#define OBJECT(OPERAND_TYPE, OPERAND_VALUE) \
|
||
fputc (' ', out); print_constant_ref (out, jcf, IMMEDIATE_u2);
|
||
|
||
#define ARRAY(OPERAND_TYPE, SUBOP) \
|
||
ARRAY_##SUBOP(OPERAND_TYPE)
|
||
/* Handle sub-categories of ARRAY opcodes. */
|
||
#define ARRAY_LOAD(TYPE) /* nothing */
|
||
#define ARRAY_STORE(TYPE) /* nothing */
|
||
#define ARRAY_LENGTH(TYPE) /* nothing */
|
||
#define ARRAY_NEW(TYPE) ARRAY_NEW_##TYPE
|
||
#define ARRAY_NEW_NUM \
|
||
INT_temp = IMMEDIATE_u1; \
|
||
{ switch ((int) INT_temp) { \
|
||
case 4: fputs (" boolean", out); break; \
|
||
case 5: fputs (" char", out); break; \
|
||
case 6: fputs (" float", out); break; \
|
||
case 7: fputs (" double", out); break; \
|
||
case 8: fputs (" byte", out); break; \
|
||
case 9: fputs (" short", out); break; \
|
||
case 10: fputs (" int", out); break; \
|
||
case 11: fputs (" long", out); break; \
|
||
default: fprintf (out, " <unknown type code %ld>", (long)INT_temp); break;\
|
||
} }
|
||
|
||
#define ARRAY_NEW_PTR \
|
||
fputc (' ', out); print_constant_ref (out, jcf, IMMEDIATE_u2);
|
||
|
||
#define ARRAY_NEW_MULTI \
|
||
fputc (' ', out); print_constant_ref (out, jcf, IMMEDIATE_u2); \
|
||
fprintf (out, " %d", IMMEDIATE_u1); /* number of dimensions */
|
||
|
||
#define TEST(OPERAND_TYPE, OPERAND_VALUE) \
|
||
fprintf (out, " %d", oldpc + IMMEDIATE_s2)
|
||
|
||
#define BRANCH(OPERAND_TYPE, OPERAND_VALUE) \
|
||
saw_index = 0, INT_temp = (OPERAND_VALUE); \
|
||
fprintf (out, " %ld", (long) (saw_index ? INT_temp : oldpc + INT_temp))
|
||
|
||
#define JSR(OPERAND_TYPE, OPERAND_VALUE) \
|
||
saw_index = 0, INT_temp = (OPERAND_VALUE); \
|
||
fprintf (out, " %ld", (long) (saw_index ? INT_temp : oldpc + INT_temp))
|
||
|
||
#undef RET /* Defined by config/i386/i386.h */
|
||
#define RET(OPERAND_TYPE, OPERAND_VALUE) \
|
||
INT_temp = saw_wide ? IMMEDIATE_u2 : (OPERAND_VALUE); \
|
||
saw_wide = 0; \
|
||
fprintf (out, " %ld", (long) INT_temp);
|
||
|
||
#define SWITCH(OPERAND_TYPE, TABLE_OR_LOOKUP) \
|
||
PC = (PC + 3) / 4 * 4; TABLE_OR_LOOKUP##_SWITCH
|
||
|
||
#define LOOKUP_SWITCH \
|
||
{ jint default_offset = IMMEDIATE_s4; jint npairs = IMMEDIATE_s4; \
|
||
fprintf (out, " npairs=%ld, default=%ld", (long) npairs, (long) default_offset+oldpc); \
|
||
while (--npairs >= 0) { \
|
||
jint match = IMMEDIATE_s4; jint offset = IMMEDIATE_s4; \
|
||
fprintf (out, "\n%10ld: %ld", (long)match, (long)(offset+oldpc)); } \
|
||
}
|
||
|
||
#define TABLE_SWITCH \
|
||
{ jint default_offset = IMMEDIATE_s4; \
|
||
jint low = IMMEDIATE_s4; jint high = IMMEDIATE_s4; \
|
||
fprintf (out, " low=%ld, high=%ld, default=%ld", \
|
||
(long) low, (long) high, (long) default_offset+oldpc); \
|
||
for (; low <= high; low++) { \
|
||
jint offset = IMMEDIATE_s4; \
|
||
fprintf (out, "\n%10ld: %ld", (long)low, (long)(offset+oldpc)); } \
|
||
}
|
||
|
||
#define SPECIAL(OPERAND_TYPE, OPERAND_VALUE) \
|
||
SPECIAL_##OPERAND_VALUE(OPERAND_TYPE)
|
||
|
||
#define SPECIAL_IINC(OPERAND_TYPE) \
|
||
i = saw_wide ? IMMEDIATE_u2 : IMMEDIATE_u1; \
|
||
fprintf (out, " %d", i); \
|
||
i = saw_wide ? IMMEDIATE_s2 : IMMEDIATE_s1; \
|
||
saw_wide = 0; \
|
||
fprintf (out, " %d", i)
|
||
|
||
#define SPECIAL_WIDE(OPERAND_TYPE) \
|
||
saw_wide = 1;
|
||
|
||
#define SPECIAL_EXIT(OPERAND_TYPE) /* nothing */
|
||
#define SPECIAL_ENTER(OPERAND_TYPE) /* nothing */
|
||
#define SPECIAL_BREAK(OPERAND_TYPE) /* nothing */
|
||
#define SPECIAL_THROW(OPERAND_TYPE) /* nothing */
|
||
|
||
#define IMPL(OPERAND_TYPE, OPERAND_VALUE) \
|
||
fprintf (out, " %d", IMMEDIATE_u##OPERAND_VALUE)
|
||
|
||
#define COND(OPERAND_TYPE, OPERAND_VALUE) \
|
||
TEST(OPERAND_TYPE, OPERAND_VALUE)
|
||
|
||
#include "javaop.def"
|
||
|
||
load_store:
|
||
if (oldpc+1 == PC) /* nothing - local index implied by opcode */;
|
||
else
|
||
{
|
||
saw_wide = 0;
|
||
fprintf (out, " %ld", (long) INT_temp);
|
||
}
|
||
fputc ('\n', out);
|
||
break;
|
||
|
||
default:
|
||
fprintf (out, "%3d: unknown(%3d)\n", oldpc, byte_ops[PC]);
|
||
}
|
||
}
|
||
}
|