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jlechner |
/* 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 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 2, 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 COPYING. If not, write to
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the Free Software Foundation, 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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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 "tm.h"
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#include "ggc.h"
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#include "intl.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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/* When nonzero, warn when source file is newer than matching class
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file. */
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int flag_newer = 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 (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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#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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(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, " Signature: "); \
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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, " Signature: "); \
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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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265 |
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#define HANDLE_EXCEPTION_TABLE(ENTRIES, COUNT) \
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print_exception_table (jcf, ENTRIES, COUNT)
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268 |
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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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278 |
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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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297 |
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298 |
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#define HANDLE_LINENUMBERTABLE_ATTRIBUTE(COUNT) \
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299 |
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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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309 |
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310 |
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#define HANDLE_INNERCLASSES_ATTRIBUTE(COUNT) \
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311 |
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{ int n = (COUNT); \
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312 |
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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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317 |
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uint16 inner_name_index = JCF_readu2 (jcf); \
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318 |
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uint16 inner_class_access_flags = JCF_readu2 (jcf); \
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319 |
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\
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320 |
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if (flag_print_class_info) \
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321 |
|
|
{ \
|
322 |
|
|
fprintf (out, "\n inner: "); \
|
323 |
|
|
if (inner_class_info_index == 0) \
|
324 |
|
|
fprintf (out, " (no inner info index)"); \
|
325 |
|
|
else \
|
326 |
|
|
print_constant_terse_with_index (out, jcf, \
|
327 |
|
|
inner_class_info_index, \
|
328 |
|
|
CONSTANT_Class); \
|
329 |
|
|
if (inner_name_index == 0) \
|
330 |
|
|
fprintf (out, " (anonymous)"); \
|
331 |
|
|
else if (verbose || flag_print_constant_pool) \
|
332 |
|
|
{ \
|
333 |
|
|
fprintf (out, " ("); \
|
334 |
|
|
print_constant_terse_with_index (out, jcf, inner_name_index, \
|
335 |
|
|
CONSTANT_Utf8); \
|
336 |
|
|
fputc (')', out); \
|
337 |
|
|
} \
|
338 |
|
|
fprintf (out, ", access flags: 0x%x", inner_class_access_flags); \
|
339 |
|
|
print_access_flags (out, inner_class_access_flags, 'c'); \
|
340 |
|
|
fprintf (out, ", outer class: "); \
|
341 |
|
|
if (outer_class_info_index == 0) \
|
342 |
|
|
fprintf (out, "(not a member)"); \
|
343 |
|
|
else \
|
344 |
|
|
print_constant_terse_with_index (out, jcf, \
|
345 |
|
|
outer_class_info_index, \
|
346 |
|
|
CONSTANT_Class); \
|
347 |
|
|
} \
|
348 |
|
|
} \
|
349 |
|
|
if (flag_print_class_info) \
|
350 |
|
|
fputc ('\n', out); \
|
351 |
|
|
}
|
352 |
|
|
|
353 |
|
|
#define HANDLE_SOURCEDEBUGEXTENSION_ATTRIBUTE(LENGTH) \
|
354 |
|
|
{ int i, n = (LENGTH), c = 0; \
|
355 |
|
|
COMMON_HANDLE_ATTRIBUTE(jcf, attribute_name, attribute_length); \
|
356 |
|
|
fputc ('\n', out); \
|
357 |
|
|
for (i = 0; i < n; i++) { c = JCF_readu(jcf); fputc(c, out); } \
|
358 |
|
|
if (c != '\r' && c != '\n') fputc('\n', out); }
|
359 |
|
|
|
360 |
|
|
#define PROCESS_OTHER_ATTRIBUTE(JCF, INDEX, LENGTH) \
|
361 |
|
|
{ COMMON_HANDLE_ATTRIBUTE(JCF, INDEX, LENGTH); \
|
362 |
|
|
fputc ('\n', out); JCF_SKIP (JCF, LENGTH); }
|
363 |
|
|
|
364 |
|
|
#define START_FINAL_ATTRIBUTES(ATTRIBUTES_COUNT) \
|
365 |
|
|
if (flag_print_attributes > 0) \
|
366 |
|
|
fprintf (out, "\nAttributes (count: %d):\n", attributes_count);
|
367 |
|
|
|
368 |
|
|
#include "javaop.h"
|
369 |
|
|
|
370 |
|
|
static void
|
371 |
|
|
print_constant_ref (FILE *stream, JCF *jcf, int index)
|
372 |
|
|
{
|
373 |
|
|
if (index <= 0 || index >= JPOOL_SIZE(jcf))
|
374 |
|
|
fprintf (stream, "<out of range>");
|
375 |
|
|
else
|
376 |
|
|
{
|
377 |
|
|
if (flag_print_constant_pool)
|
378 |
|
|
fprintf (stream, "#%d=", index);
|
379 |
|
|
fputc ('<', stream);
|
380 |
|
|
print_constant (stream, jcf, index, 1);
|
381 |
|
|
fputc ('>', stream);
|
382 |
|
|
}
|
383 |
|
|
}
|
384 |
|
|
|
385 |
|
|
/* Print the access flags given by FLAGS.
|
386 |
|
|
The CONTEXT is one of 'c' (class flags), 'f' (field flags),
|
387 |
|
|
or 'm' (method flags). */
|
388 |
|
|
|
389 |
|
|
static void
|
390 |
|
|
print_access_flags (FILE *stream, uint16 flags, char context)
|
391 |
|
|
{
|
392 |
|
|
if (flags & ACC_PUBLIC) fprintf (stream, " public");
|
393 |
|
|
if (flags & ACC_PRIVATE) fprintf (stream, " private");
|
394 |
|
|
if (flags & ACC_PROTECTED) fprintf (stream, " protected");
|
395 |
|
|
if (flags & ACC_ABSTRACT) fprintf (stream, " abstract");
|
396 |
|
|
if (flags & ACC_STATIC) fprintf (stream, " static");
|
397 |
|
|
if (flags & ACC_FINAL) fprintf (stream, " final");
|
398 |
|
|
if (flags & ACC_TRANSIENT) fprintf (stream, " transient");
|
399 |
|
|
if (flags & ACC_VOLATILE) fprintf (stream, " volatile");
|
400 |
|
|
if (flags & ACC_NATIVE) fprintf (stream, " native");
|
401 |
|
|
if (flags & ACC_SYNCHRONIZED)
|
402 |
|
|
{
|
403 |
|
|
if (context == 'c')
|
404 |
|
|
fprintf (stream, " super");
|
405 |
|
|
else
|
406 |
|
|
fprintf (stream, " synchronized");
|
407 |
|
|
}
|
408 |
|
|
if (flags & ACC_INTERFACE) fprintf (stream, " interface");
|
409 |
|
|
if (flags & ACC_STRICT) fprintf (stream, " strictfp");
|
410 |
|
|
}
|
411 |
|
|
|
412 |
|
|
|
413 |
|
|
static void
|
414 |
|
|
print_name (FILE* stream, JCF* jcf, int name_index)
|
415 |
|
|
{
|
416 |
|
|
if (JPOOL_TAG (jcf, name_index) != CONSTANT_Utf8)
|
417 |
|
|
fprintf (stream, "<not a UTF8 constant>");
|
418 |
|
|
else
|
419 |
|
|
jcf_print_utf8 (stream, JPOOL_UTF_DATA (jcf,name_index),
|
420 |
|
|
JPOOL_UTF_LENGTH (jcf, name_index));
|
421 |
|
|
}
|
422 |
|
|
|
423 |
|
|
/* If the type of the constant at INDEX matches EXPECTED,
|
424 |
|
|
print it tersely, otherwise more verbosely. */
|
425 |
|
|
|
426 |
|
|
static void
|
427 |
|
|
print_constant_terse (FILE *out, JCF *jcf, int index, int expected)
|
428 |
|
|
{
|
429 |
|
|
if (! CPOOL_INDEX_IN_RANGE (&jcf->cpool, index))
|
430 |
|
|
fprintf (out, "<constant pool index %d not in range>", index);
|
431 |
|
|
else if (JPOOL_TAG (jcf, index) != expected)
|
432 |
|
|
{
|
433 |
|
|
fprintf (out, "<Unexpected constant type ");
|
434 |
|
|
print_constant (out, jcf, index, 1);
|
435 |
|
|
fprintf (out, ">");
|
436 |
|
|
}
|
437 |
|
|
else
|
438 |
|
|
print_constant (out, jcf, index, 0);
|
439 |
|
|
}
|
440 |
|
|
|
441 |
|
|
static void
|
442 |
|
|
print_constant_terse_with_index (FILE *out, JCF *jcf, int index, int expected)
|
443 |
|
|
{
|
444 |
|
|
if (flag_print_constant_pool)
|
445 |
|
|
fprintf (out, "%d=", index);
|
446 |
|
|
print_constant_terse (out, jcf, index, expected);
|
447 |
|
|
}
|
448 |
|
|
|
449 |
|
|
/* Print the constant at INDEX in JCF's constant pool.
|
450 |
|
|
If verbosity==0, print very tersely (no extraneous text).
|
451 |
|
|
If verbosity==1, prefix the type of the constant.
|
452 |
|
|
If verbosity==2, add more descriptive text. */
|
453 |
|
|
|
454 |
|
|
static void
|
455 |
|
|
print_constant (FILE *out, JCF *jcf, int index, int verbosity)
|
456 |
|
|
{
|
457 |
|
|
int j, n;
|
458 |
|
|
jlong num;
|
459 |
|
|
const char *str;
|
460 |
|
|
int kind = JPOOL_TAG (jcf, index);
|
461 |
|
|
switch (kind)
|
462 |
|
|
{
|
463 |
|
|
case CONSTANT_Class:
|
464 |
|
|
n = JPOOL_USHORT1 (jcf, index);
|
465 |
|
|
if (verbosity > 0)
|
466 |
|
|
{
|
467 |
|
|
if (verbosity > 1)
|
468 |
|
|
fprintf (out, "Class name: %d=", n);
|
469 |
|
|
else
|
470 |
|
|
fprintf (out, "Class ");
|
471 |
|
|
}
|
472 |
|
|
if (! CPOOL_INDEX_IN_RANGE (&jcf->cpool, n))
|
473 |
|
|
fprintf (out, "<out of range>");
|
474 |
|
|
else if (verbosity < 2 && JPOOL_TAG (jcf, n) == CONSTANT_Utf8)
|
475 |
|
|
{
|
476 |
|
|
int len = JPOOL_UTF_LENGTH (jcf, n);
|
477 |
|
|
jcf_print_utf8_replace (out, JPOOL_UTF_DATA(jcf,n), len, '/', '.');
|
478 |
|
|
}
|
479 |
|
|
else
|
480 |
|
|
print_constant_terse (out, jcf, n, CONSTANT_Utf8);
|
481 |
|
|
break;
|
482 |
|
|
case CONSTANT_Fieldref:
|
483 |
|
|
str = "Field"; goto field_or_method;
|
484 |
|
|
case CONSTANT_Methodref:
|
485 |
|
|
str = "Method"; goto field_or_method;
|
486 |
|
|
case CONSTANT_InterfaceMethodref:
|
487 |
|
|
str = "InterfaceMethod"; goto field_or_method;
|
488 |
|
|
field_or_method:
|
489 |
|
|
{
|
490 |
|
|
uint16 tclass = JPOOL_USHORT1 (jcf, index);
|
491 |
|
|
uint16 name_and_type = JPOOL_USHORT2 (jcf, index);
|
492 |
|
|
if (verbosity == 2)
|
493 |
|
|
fprintf (out, "%sref class: %d=", str, tclass);
|
494 |
|
|
else if (verbosity > 0)
|
495 |
|
|
fprintf (out, "%s ", str);
|
496 |
|
|
print_constant_terse (out, jcf, tclass, CONSTANT_Class);
|
497 |
|
|
if (verbosity < 2)
|
498 |
|
|
fprintf (out, ".");
|
499 |
|
|
else
|
500 |
|
|
fprintf (out, " name_and_type: %d=<", name_and_type);
|
501 |
|
|
print_constant_terse (out, jcf, name_and_type, CONSTANT_NameAndType);
|
502 |
|
|
if (verbosity == 2)
|
503 |
|
|
fputc ('>', out);
|
504 |
|
|
}
|
505 |
|
|
break;
|
506 |
|
|
case CONSTANT_String:
|
507 |
|
|
j = JPOOL_USHORT1 (jcf, index);
|
508 |
|
|
if (verbosity > 0)
|
509 |
|
|
{
|
510 |
|
|
if (verbosity > 1)
|
511 |
|
|
fprintf (out, "String %d=", j);
|
512 |
|
|
else
|
513 |
|
|
fprintf (out, "String ");
|
514 |
|
|
}
|
515 |
|
|
print_constant_terse (out, jcf, j, CONSTANT_Utf8);
|
516 |
|
|
break;
|
517 |
|
|
case CONSTANT_Integer:
|
518 |
|
|
if (verbosity > 0)
|
519 |
|
|
fprintf (out, "Integer ");
|
520 |
|
|
num = JPOOL_INT (jcf, index);
|
521 |
|
|
goto integer;
|
522 |
|
|
case CONSTANT_Long:
|
523 |
|
|
if (verbosity > 0)
|
524 |
|
|
fprintf (out, "Long ");
|
525 |
|
|
num = JPOOL_LONG (jcf, index);
|
526 |
|
|
goto integer;
|
527 |
|
|
integer:
|
528 |
|
|
{
|
529 |
|
|
char buffer[25];
|
530 |
|
|
format_int (buffer, num, 10);
|
531 |
|
|
fprintf (out, "%s", buffer);
|
532 |
|
|
if (verbosity > 1)
|
533 |
|
|
{
|
534 |
|
|
format_uint (buffer, (uint64)num, 16);
|
535 |
|
|
fprintf (out, "=0x%s", buffer);
|
536 |
|
|
}
|
537 |
|
|
}
|
538 |
|
|
break;
|
539 |
|
|
case CONSTANT_Float:
|
540 |
|
|
{
|
541 |
|
|
jfloat fnum = JPOOL_FLOAT (jcf, index);
|
542 |
|
|
|
543 |
|
|
if (verbosity > 0)
|
544 |
|
|
fputs ("Float ", out);
|
545 |
|
|
|
546 |
|
|
if (fnum.negative)
|
547 |
|
|
putc ('-', out);
|
548 |
|
|
|
549 |
|
|
if (JFLOAT_FINITE (fnum))
|
550 |
|
|
{
|
551 |
|
|
int dummy;
|
552 |
|
|
int exponent = fnum.exponent - JFLOAT_EXP_BIAS;
|
553 |
|
|
double f;
|
554 |
|
|
uint32 mantissa = fnum.mantissa;
|
555 |
|
|
if (fnum.exponent == 0)
|
556 |
|
|
/* Denormal. */
|
557 |
|
|
exponent++;
|
558 |
|
|
else
|
559 |
|
|
/* Normal; add the implicit bit. */
|
560 |
|
|
mantissa |= ((uint32)1 << 23);
|
561 |
|
|
|
562 |
|
|
f = frexp (mantissa, &dummy);
|
563 |
|
|
f = ldexp (f, exponent + 1);
|
564 |
|
|
fprintf (out, "%.10g", f);
|
565 |
|
|
}
|
566 |
|
|
else
|
567 |
|
|
{
|
568 |
|
|
if (fnum.mantissa == 0)
|
569 |
|
|
fputs ("Inf", out);
|
570 |
|
|
else if (fnum.mantissa & JFLOAT_QNAN_MASK)
|
571 |
|
|
fprintf (out, "QNaN(%u)", (fnum.mantissa & ~JFLOAT_QNAN_MASK));
|
572 |
|
|
else
|
573 |
|
|
fprintf (out, "SNaN(%u)", (fnum.mantissa & ~JFLOAT_QNAN_MASK));
|
574 |
|
|
}
|
575 |
|
|
|
576 |
|
|
if (verbosity > 1)
|
577 |
|
|
fprintf (out, ", bits = 0x%08lx", JPOOL_UINT (jcf, index));
|
578 |
|
|
|
579 |
|
|
break;
|
580 |
|
|
}
|
581 |
|
|
case CONSTANT_Double:
|
582 |
|
|
{
|
583 |
|
|
jdouble dnum = JPOOL_DOUBLE (jcf, index);
|
584 |
|
|
|
585 |
|
|
if (verbosity > 0)
|
586 |
|
|
fputs ("Double ", out);
|
587 |
|
|
|
588 |
|
|
if (dnum.negative)
|
589 |
|
|
putc ('-', out);
|
590 |
|
|
|
591 |
|
|
if (JDOUBLE_FINITE (dnum))
|
592 |
|
|
{
|
593 |
|
|
int dummy;
|
594 |
|
|
int exponent = dnum.exponent - JDOUBLE_EXP_BIAS;
|
595 |
|
|
double d;
|
596 |
|
|
uint64 mantissa = ((((uint64) dnum.mantissa0) << 32)
|
597 |
|
|
+ dnum.mantissa1);
|
598 |
|
|
if (dnum.exponent == 0)
|
599 |
|
|
/* Denormal. */
|
600 |
|
|
exponent++;
|
601 |
|
|
else
|
602 |
|
|
/* Normal; add the implicit bit. */
|
603 |
|
|
mantissa |= ((uint64)1 << 52);
|
604 |
|
|
|
605 |
|
|
d = frexp (mantissa, &dummy);
|
606 |
|
|
d = ldexp (d, exponent + 1);
|
607 |
|
|
fprintf (out, "%.20g", d);
|
608 |
|
|
}
|
609 |
|
|
else
|
610 |
|
|
{
|
611 |
|
|
uint64 mantissa = dnum.mantissa0 & ~JDOUBLE_QNAN_MASK;
|
612 |
|
|
mantissa = (mantissa << 32) + dnum.mantissa1;
|
613 |
|
|
|
614 |
|
|
if (dnum.mantissa0 == 0 && dnum.mantissa1 == 0)
|
615 |
|
|
fputs ("Inf", out);
|
616 |
|
|
else if (dnum.mantissa0 & JDOUBLE_QNAN_MASK)
|
617 |
|
|
fprintf (out, "QNaN(%llu)", (unsigned long long)mantissa);
|
618 |
|
|
else
|
619 |
|
|
fprintf (out, "SNaN(%llu)", (unsigned long long)mantissa);
|
620 |
|
|
}
|
621 |
|
|
if (verbosity > 1)
|
622 |
|
|
{
|
623 |
|
|
int32 hi, lo;
|
624 |
|
|
hi = JPOOL_UINT (jcf, index);
|
625 |
|
|
lo = JPOOL_UINT (jcf, index + 1);
|
626 |
|
|
fprintf (out, ", bits = 0x%08lx%08lx", (long) hi, (long) lo);
|
627 |
|
|
}
|
628 |
|
|
break;
|
629 |
|
|
}
|
630 |
|
|
case CONSTANT_NameAndType:
|
631 |
|
|
{
|
632 |
|
|
uint16 name = JPOOL_USHORT1 (jcf, index);
|
633 |
|
|
uint16 sig = JPOOL_USHORT2 (jcf, index);
|
634 |
|
|
if (verbosity > 0)
|
635 |
|
|
{
|
636 |
|
|
if (verbosity > 1)
|
637 |
|
|
fprintf (out, "NameAndType name: %d=", name);
|
638 |
|
|
else
|
639 |
|
|
fprintf (out, "NameAndType ");
|
640 |
|
|
}
|
641 |
|
|
print_name (out, jcf, name);
|
642 |
|
|
if (verbosity <= 1)
|
643 |
|
|
fputc (' ', out);
|
644 |
|
|
else
|
645 |
|
|
fprintf (out, ", signature: %d=", sig);
|
646 |
|
|
print_signature (out, jcf, sig, 0);
|
647 |
|
|
}
|
648 |
|
|
break;
|
649 |
|
|
case CONSTANT_Utf8:
|
650 |
|
|
{
|
651 |
|
|
const unsigned char *str = JPOOL_UTF_DATA (jcf, index);
|
652 |
|
|
int length = JPOOL_UTF_LENGTH (jcf, index);
|
653 |
|
|
if (verbosity > 0)
|
654 |
|
|
{ /* Print as 8-bit bytes. */
|
655 |
|
|
fputs ("Utf8: \"", out);
|
656 |
|
|
while (--length >= 0)
|
657 |
|
|
jcf_print_char (out, *str++);
|
658 |
|
|
}
|
659 |
|
|
else
|
660 |
|
|
{ /* Print as Unicode. */
|
661 |
|
|
fputc ('\"', out);
|
662 |
|
|
jcf_print_utf8 (out, str, length);
|
663 |
|
|
}
|
664 |
|
|
fputc ('\"', out);
|
665 |
|
|
}
|
666 |
|
|
break;
|
667 |
|
|
default:
|
668 |
|
|
fprintf (out, "(Unknown constant type %d)", kind);
|
669 |
|
|
}
|
670 |
|
|
}
|
671 |
|
|
|
672 |
|
|
static void
|
673 |
|
|
print_constant_pool (JCF *jcf)
|
674 |
|
|
{
|
675 |
|
|
int i;
|
676 |
|
|
for (i = 1; i < JPOOL_SIZE(jcf); i++)
|
677 |
|
|
{
|
678 |
|
|
int kind = JPOOL_TAG (jcf, i);
|
679 |
|
|
fprintf (out, "#%d: ", i);
|
680 |
|
|
print_constant (out, jcf, i, 2);
|
681 |
|
|
fprintf (out, "\n");
|
682 |
|
|
if (kind == CONSTANT_Double || kind == CONSTANT_Long)
|
683 |
|
|
i++; /* These take up two slots in the constant table */
|
684 |
|
|
}
|
685 |
|
|
}
|
686 |
|
|
|
687 |
|
|
static void
|
688 |
|
|
print_signature_type (FILE* stream, const unsigned char **ptr,
|
689 |
|
|
const unsigned char *limit)
|
690 |
|
|
{
|
691 |
|
|
int array_size;
|
692 |
|
|
if ((*ptr) >= limit)
|
693 |
|
|
return;
|
694 |
|
|
switch (*(*ptr))
|
695 |
|
|
{
|
696 |
|
|
case '[':
|
697 |
|
|
array_size = -1;
|
698 |
|
|
for ((*ptr)++; (*ptr) < limit && ISDIGIT (**ptr); (*ptr)++)
|
699 |
|
|
{
|
700 |
|
|
array_size = (array_size < 0 ? 0 : 10 * array_size) + *(*ptr) - '0';
|
701 |
|
|
}
|
702 |
|
|
print_signature_type (stream, ptr, limit);
|
703 |
|
|
if (array_size == -1)
|
704 |
|
|
fprintf (stream, "[]");
|
705 |
|
|
else
|
706 |
|
|
fprintf (stream, "[%d]", array_size);
|
707 |
|
|
break;
|
708 |
|
|
case '(':
|
709 |
|
|
{
|
710 |
|
|
int nargs = 0;
|
711 |
|
|
fputc (*(*ptr)++, stream);
|
712 |
|
|
for (; **ptr != ')' && *ptr < limit; nargs++)
|
713 |
|
|
{
|
714 |
|
|
if (nargs > 0)
|
715 |
|
|
fputc (',', stream);
|
716 |
|
|
print_signature_type (stream, ptr, limit);
|
717 |
|
|
}
|
718 |
|
|
if (*ptr < limit)
|
719 |
|
|
{
|
720 |
|
|
fputc (*(*ptr)++, stream);
|
721 |
|
|
print_signature_type (stream, ptr, limit);
|
722 |
|
|
}
|
723 |
|
|
else
|
724 |
|
|
fprintf (stream, "???");
|
725 |
|
|
}
|
726 |
|
|
break;
|
727 |
|
|
|
728 |
|
|
case 'B': fprintf (stream, "byte"); (*ptr)++; break;
|
729 |
|
|
case 'C': fprintf (stream, "char"); (*ptr)++; break;
|
730 |
|
|
case 'D': fprintf (stream, "double"); (*ptr)++; break;
|
731 |
|
|
case 'F': fprintf (stream, "float"); (*ptr)++; break;
|
732 |
|
|
case 'S': fprintf (stream, "short"); (*ptr)++; break;
|
733 |
|
|
case 'I': fprintf (stream, "int"); (*ptr)++; break;
|
734 |
|
|
case 'J': fprintf (stream, "long"); (*ptr)++; break;
|
735 |
|
|
case 'Z': fprintf (stream, "boolean"); (*ptr)++; break;
|
736 |
|
|
case 'V': fprintf (stream, "void"); (*ptr)++; break;
|
737 |
|
|
|
738 |
|
|
case 'L':
|
739 |
|
|
for ((*ptr)++; (*ptr)<limit && *(*ptr) != ';'; (*ptr)++)
|
740 |
|
|
jcf_print_char (stream, *(*ptr) == '/' ? '.' : *(*ptr));
|
741 |
|
|
if (*(*ptr) == ';')
|
742 |
|
|
(*ptr)++;
|
743 |
|
|
break;
|
744 |
|
|
default:
|
745 |
|
|
jcf_print_char (stream, *(*ptr)++);
|
746 |
|
|
}
|
747 |
|
|
}
|
748 |
|
|
|
749 |
|
|
static void
|
750 |
|
|
print_signature (FILE* stream, JCF *jcf, int signature_index, int options)
|
751 |
|
|
{
|
752 |
|
|
if (JPOOL_TAG (jcf, signature_index) != CONSTANT_Utf8)
|
753 |
|
|
print_constant_terse (out, jcf, signature_index, CONSTANT_Utf8);
|
754 |
|
|
else
|
755 |
|
|
{
|
756 |
|
|
const unsigned char *str = JPOOL_UTF_DATA (jcf, signature_index);
|
757 |
|
|
int length = JPOOL_UTF_LENGTH (jcf, signature_index);
|
758 |
|
|
const unsigned char *limit;
|
759 |
|
|
limit = str + length;
|
760 |
|
|
if (str >= limit)
|
761 |
|
|
fprintf (stream, "<empty signature string>");
|
762 |
|
|
else
|
763 |
|
|
{
|
764 |
|
|
if (options & PRINT_SIGNATURE_RESULT_ONLY)
|
765 |
|
|
{
|
766 |
|
|
while (str < limit && *str++ != ')') ;
|
767 |
|
|
}
|
768 |
|
|
if (options & PRINT_SIGNATURE_ARGS_ONLY)
|
769 |
|
|
{
|
770 |
|
|
str++;
|
771 |
|
|
fputc ('(', stream);
|
772 |
|
|
while (str < limit && *str != ')')
|
773 |
|
|
{
|
774 |
|
|
print_signature_type (stream, &str, limit);
|
775 |
|
|
if (*str != ')')
|
776 |
|
|
fputs (", ", stream);
|
777 |
|
|
}
|
778 |
|
|
fputc (')', stream);
|
779 |
|
|
}
|
780 |
|
|
else
|
781 |
|
|
{
|
782 |
|
|
print_signature_type (stream, &str, limit);
|
783 |
|
|
if (str < limit)
|
784 |
|
|
{
|
785 |
|
|
fprintf (stream, "<junk:");
|
786 |
|
|
jcf_print_utf8 (stream, str, limit - str);
|
787 |
|
|
fputc ('>', stream);
|
788 |
|
|
}
|
789 |
|
|
}
|
790 |
|
|
}
|
791 |
|
|
}
|
792 |
|
|
}
|
793 |
|
|
|
794 |
|
|
|
795 |
|
|
static void
|
796 |
|
|
print_exception_table (JCF *jcf, const unsigned char *entries, int count)
|
797 |
|
|
{
|
798 |
|
|
/* Print exception table. */
|
799 |
|
|
int i = count;
|
800 |
|
|
if (i > 0)
|
801 |
|
|
{
|
802 |
|
|
const unsigned char *ptr = entries;
|
803 |
|
|
fprintf (out, "Exceptions (count: %d):\n", i);
|
804 |
|
|
for (; --i >= 0; ptr+= 8)
|
805 |
|
|
{
|
806 |
|
|
int start_pc = GET_u2 (ptr);
|
807 |
|
|
int end_pc = GET_u2 (ptr+2);
|
808 |
|
|
int handler_pc = GET_u2 (ptr+4);
|
809 |
|
|
int catch_type = GET_u2 (ptr+6);
|
810 |
|
|
fprintf (out, " start: %d, end: %d, handler: %d, type: ",
|
811 |
|
|
start_pc, end_pc, handler_pc);
|
812 |
|
|
if (catch_type == 0)
|
813 |
|
|
fputs ("0 /* finally */", out);
|
814 |
|
|
else
|
815 |
|
|
print_constant_terse_with_index (out, jcf,
|
816 |
|
|
catch_type, CONSTANT_Class);
|
817 |
|
|
fputc ('\n', out);
|
818 |
|
|
}
|
819 |
|
|
}
|
820 |
|
|
}
|
821 |
|
|
|
822 |
|
|
#include "jcf-reader.c"
|
823 |
|
|
|
824 |
|
|
static void
|
825 |
|
|
process_class (JCF *jcf)
|
826 |
|
|
{
|
827 |
|
|
int code;
|
828 |
|
|
if (jcf_parse_preamble (jcf) != 0)
|
829 |
|
|
fprintf (stderr, _("Not a valid Java .class file.\n"));
|
830 |
|
|
|
831 |
|
|
/* Parse and possibly print constant pool */
|
832 |
|
|
code = jcf_parse_constant_pool (jcf);
|
833 |
|
|
if (code != 0)
|
834 |
|
|
{
|
835 |
|
|
fprintf (stderr, _("error while parsing constant pool\n"));
|
836 |
|
|
exit (FATAL_EXIT_CODE);
|
837 |
|
|
}
|
838 |
|
|
code = verify_constant_pool (jcf);
|
839 |
|
|
if (code > 0)
|
840 |
|
|
{
|
841 |
|
|
fprintf (stderr, _("error in constant pool entry #%d\n"), code);
|
842 |
|
|
exit (FATAL_EXIT_CODE);
|
843 |
|
|
}
|
844 |
|
|
if (flag_print_constant_pool)
|
845 |
|
|
print_constant_pool (jcf);
|
846 |
|
|
|
847 |
|
|
jcf_parse_class (jcf);
|
848 |
|
|
code = jcf_parse_fields (jcf);
|
849 |
|
|
if (code != 0)
|
850 |
|
|
{
|
851 |
|
|
fprintf (stderr, _("error while parsing fields\n"));
|
852 |
|
|
exit (FATAL_EXIT_CODE);
|
853 |
|
|
}
|
854 |
|
|
code = jcf_parse_methods (jcf);
|
855 |
|
|
if (code != 0)
|
856 |
|
|
{
|
857 |
|
|
fprintf (stderr, _("error while parsing methods\n"));
|
858 |
|
|
exit (FATAL_EXIT_CODE);
|
859 |
|
|
}
|
860 |
|
|
code = jcf_parse_final_attributes (jcf);
|
861 |
|
|
if (code != 0)
|
862 |
|
|
{
|
863 |
|
|
fprintf (stderr, _("error while parsing final attributes\n"));
|
864 |
|
|
exit (FATAL_EXIT_CODE);
|
865 |
|
|
}
|
866 |
|
|
jcf->filename = NULL;
|
867 |
|
|
}
|
868 |
|
|
|
869 |
|
|
|
870 |
|
|
|
871 |
|
|
/* This is used to mark options with no short value. */
|
872 |
|
|
#define LONG_OPT(Num) ((Num) + 128)
|
873 |
|
|
|
874 |
|
|
#define OPT_classpath LONG_OPT (0)
|
875 |
|
|
#define OPT_CLASSPATH OPT_classpath
|
876 |
|
|
#define OPT_bootclasspath LONG_OPT (1)
|
877 |
|
|
#define OPT_extdirs LONG_OPT (2)
|
878 |
|
|
#define OPT_HELP LONG_OPT (3)
|
879 |
|
|
#define OPT_VERSION LONG_OPT (4)
|
880 |
|
|
#define OPT_JAVAP LONG_OPT (5)
|
881 |
|
|
|
882 |
|
|
static const struct option options[] =
|
883 |
|
|
{
|
884 |
|
|
{ "classpath", required_argument, NULL, OPT_classpath },
|
885 |
|
|
{ "bootclasspath", required_argument, NULL, OPT_bootclasspath },
|
886 |
|
|
{ "extdirs", required_argument, NULL, OPT_extdirs },
|
887 |
|
|
{ "CLASSPATH", required_argument, NULL, OPT_CLASSPATH },
|
888 |
|
|
{ "help", no_argument, NULL, OPT_HELP },
|
889 |
|
|
{ "verbose", no_argument, NULL, 'v' },
|
890 |
|
|
{ "version", no_argument, NULL, OPT_VERSION },
|
891 |
|
|
{ "javap", no_argument, NULL, OPT_JAVAP },
|
892 |
|
|
{ "print-main", no_argument, &flag_print_main, 1 },
|
893 |
|
|
{ "print-constants", no_argument, &flag_print_constant_pool, 1 },
|
894 |
|
|
{ NULL, no_argument, NULL, 0 }
|
895 |
|
|
};
|
896 |
|
|
|
897 |
|
|
static void
|
898 |
|
|
usage (void)
|
899 |
|
|
{
|
900 |
|
|
fprintf (stderr, _("Try 'jcf-dump --help' for more information.\n"));
|
901 |
|
|
exit (1);
|
902 |
|
|
}
|
903 |
|
|
|
904 |
|
|
static void
|
905 |
|
|
help (void)
|
906 |
|
|
{
|
907 |
|
|
printf (_("Usage: jcf-dump [OPTION]... CLASS...\n\n"));
|
908 |
|
|
printf (_("Display contents of a class file in readable form.\n\n"));
|
909 |
|
|
printf (_(" -c Disassemble method bodies\n"));
|
910 |
|
|
printf (_(" --javap Generate output in 'javap' format\n"));
|
911 |
|
|
printf ("\n");
|
912 |
|
|
printf (_(" --classpath PATH Set path to find .class files\n"));
|
913 |
|
|
printf (_(" -IDIR Append directory to class path\n"));
|
914 |
|
|
printf (_(" --bootclasspath PATH Override built-in class path\n"));
|
915 |
|
|
printf (_(" --extdirs PATH Set extensions directory path\n"));
|
916 |
|
|
printf (_(" -o FILE Set output file name\n"));
|
917 |
|
|
printf ("\n");
|
918 |
|
|
printf (_(" --help Print this help, then exit\n"));
|
919 |
|
|
printf (_(" --version Print version number, then exit\n"));
|
920 |
|
|
printf (_(" -v, --verbose Print extra information while running\n"));
|
921 |
|
|
printf ("\n");
|
922 |
|
|
printf (_("For bug reporting instructions, please see:\n"
|
923 |
|
|
"%s.\n"), bug_report_url);
|
924 |
|
|
exit (0);
|
925 |
|
|
}
|
926 |
|
|
|
927 |
|
|
static void
|
928 |
|
|
version (void)
|
929 |
|
|
{
|
930 |
|
|
printf ("jcf-dump (GCC) %s\n\n", version_string);
|
931 |
|
|
printf ("Copyright %s 2006 Free Software Foundation, Inc.\n", _("(C)"));
|
932 |
|
|
printf (_("This is free software; see the source for copying conditions. There is NO\n"
|
933 |
|
|
"warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"));
|
934 |
|
|
exit (0);
|
935 |
|
|
}
|
936 |
|
|
|
937 |
|
|
int
|
938 |
|
|
main (int argc, char** argv)
|
939 |
|
|
{
|
940 |
|
|
JCF jcf[1];
|
941 |
|
|
int argi, opt;
|
942 |
|
|
|
943 |
|
|
/* Unlock the stdio streams. */
|
944 |
|
|
unlock_std_streams ();
|
945 |
|
|
|
946 |
|
|
gcc_init_libintl ();
|
947 |
|
|
|
948 |
|
|
if (argc <= 1)
|
949 |
|
|
{
|
950 |
|
|
fprintf (stderr, _("jcf-dump: no classes specified\n"));
|
951 |
|
|
usage ();
|
952 |
|
|
}
|
953 |
|
|
|
954 |
|
|
jcf_path_init ();
|
955 |
|
|
|
956 |
|
|
/* We use getopt_long_only to allow single `-' long options. For
|
957 |
|
|
some of our options this is more natural. */
|
958 |
|
|
while ((opt = getopt_long_only (argc, argv, "o:I:vc", options, NULL)) != -1)
|
959 |
|
|
{
|
960 |
|
|
switch (opt)
|
961 |
|
|
{
|
962 |
|
|
case 0:
|
963 |
|
|
/* Already handled. */
|
964 |
|
|
break;
|
965 |
|
|
|
966 |
|
|
case 'o':
|
967 |
|
|
output_file = optarg;
|
968 |
|
|
break;
|
969 |
|
|
|
970 |
|
|
case 'I':
|
971 |
|
|
jcf_path_include_arg (optarg);
|
972 |
|
|
break;
|
973 |
|
|
|
974 |
|
|
case 'v':
|
975 |
|
|
verbose++;
|
976 |
|
|
break;
|
977 |
|
|
|
978 |
|
|
case 'c':
|
979 |
|
|
flag_disassemble_methods = 1;
|
980 |
|
|
break;
|
981 |
|
|
|
982 |
|
|
case OPT_classpath:
|
983 |
|
|
jcf_path_classpath_arg (optarg);
|
984 |
|
|
break;
|
985 |
|
|
|
986 |
|
|
case OPT_bootclasspath:
|
987 |
|
|
jcf_path_bootclasspath_arg (optarg);
|
988 |
|
|
break;
|
989 |
|
|
|
990 |
|
|
case OPT_extdirs:
|
991 |
|
|
jcf_path_extdirs_arg (optarg);
|
992 |
|
|
break;
|
993 |
|
|
|
994 |
|
|
case OPT_HELP:
|
995 |
|
|
help ();
|
996 |
|
|
break;
|
997 |
|
|
|
998 |
|
|
case OPT_VERSION:
|
999 |
|
|
version ();
|
1000 |
|
|
break;
|
1001 |
|
|
|
1002 |
|
|
case OPT_JAVAP:
|
1003 |
|
|
flag_javap_compatible++;
|
1004 |
|
|
flag_print_constant_pool = 0;
|
1005 |
|
|
flag_print_attributes = 0;
|
1006 |
|
|
break;
|
1007 |
|
|
|
1008 |
|
|
default:
|
1009 |
|
|
usage ();
|
1010 |
|
|
}
|
1011 |
|
|
}
|
1012 |
|
|
|
1013 |
|
|
if (verbose && ! flag_javap_compatible)
|
1014 |
|
|
flag_print_constant_pool = 1;
|
1015 |
|
|
|
1016 |
|
|
if (optind == argc)
|
1017 |
|
|
{
|
1018 |
|
|
fprintf (stderr, _("jcf-dump: no classes specified\n"));
|
1019 |
|
|
usage ();
|
1020 |
|
|
}
|
1021 |
|
|
|
1022 |
|
|
jcf_path_seal (verbose);
|
1023 |
|
|
|
1024 |
|
|
if (flag_print_main)
|
1025 |
|
|
{
|
1026 |
|
|
flag_print_fields = 0;
|
1027 |
|
|
flag_print_methods = 0;
|
1028 |
|
|
flag_print_constant_pool = 0;
|
1029 |
|
|
flag_print_attributes = 0;
|
1030 |
|
|
flag_print_class_info = 0;
|
1031 |
|
|
}
|
1032 |
|
|
|
1033 |
|
|
if (output_file)
|
1034 |
|
|
{
|
1035 |
|
|
out = fopen (output_file, "w");
|
1036 |
|
|
if (! out)
|
1037 |
|
|
{
|
1038 |
|
|
fprintf (stderr, _("Cannot open '%s' for output.\n"), output_file);
|
1039 |
|
|
return FATAL_EXIT_CODE;
|
1040 |
|
|
}
|
1041 |
|
|
}
|
1042 |
|
|
else
|
1043 |
|
|
out = stdout;
|
1044 |
|
|
|
1045 |
|
|
if (optind >= argc)
|
1046 |
|
|
{
|
1047 |
|
|
fprintf (out, "Reading .class from <standard input>.\n");
|
1048 |
|
|
open_class ("<stdio>", jcf, 0, NULL);
|
1049 |
|
|
process_class (jcf);
|
1050 |
|
|
}
|
1051 |
|
|
else
|
1052 |
|
|
{
|
1053 |
|
|
for (argi = optind; argi < argc; argi++)
|
1054 |
|
|
{
|
1055 |
|
|
char *arg = argv[argi];
|
1056 |
|
|
const char *class_filename = find_class (arg, strlen (arg), jcf, 0);
|
1057 |
|
|
if (class_filename == NULL)
|
1058 |
|
|
class_filename = find_classfile (arg, jcf, NULL);
|
1059 |
|
|
if (class_filename == NULL)
|
1060 |
|
|
{
|
1061 |
|
|
perror ("Could not find class");
|
1062 |
|
|
return FATAL_EXIT_CODE;
|
1063 |
|
|
}
|
1064 |
|
|
JCF_FILL (jcf, 4);
|
1065 |
|
|
if (GET_u4 (jcf->read_ptr) == ZIPMAGIC)
|
1066 |
|
|
{
|
1067 |
|
|
long compressed_size, member_size;
|
1068 |
|
|
int compression_method, filename_length, extra_length;
|
1069 |
|
|
int general_purpose_bits;
|
1070 |
|
|
const char *filename;
|
1071 |
|
|
int total_length;
|
1072 |
|
|
if (flag_print_class_info)
|
1073 |
|
|
fprintf (out, "Reading classes from archive %s.\n",
|
1074 |
|
|
class_filename);
|
1075 |
|
|
for (;;)
|
1076 |
|
|
{
|
1077 |
|
|
int skip = 0;
|
1078 |
|
|
jcf_filbuf_t save_filbuf = jcf->filbuf;
|
1079 |
|
|
long magic = JCF_readu4_le (jcf);
|
1080 |
|
|
if (magic == 0x02014b50 || magic == 0x06054b50)
|
1081 |
|
|
break; /* got to central directory */
|
1082 |
|
|
if (magic != 0x04034b50) /* ZIPMAGIC (little-endian) */
|
1083 |
|
|
{
|
1084 |
|
|
fprintf (stderr, _("bad format of .zip/.jar archive\n"));
|
1085 |
|
|
return FATAL_EXIT_CODE;
|
1086 |
|
|
}
|
1087 |
|
|
JCF_FILL (jcf, 26);
|
1088 |
|
|
JCF_SKIP (jcf, 2);
|
1089 |
|
|
general_purpose_bits = JCF_readu2_le (jcf);
|
1090 |
|
|
compression_method = JCF_readu2_le (jcf);
|
1091 |
|
|
JCF_SKIP (jcf, 8);
|
1092 |
|
|
compressed_size = JCF_readu4_le (jcf);
|
1093 |
|
|
member_size = JCF_readu4_le (jcf);
|
1094 |
|
|
filename_length = JCF_readu2_le (jcf);
|
1095 |
|
|
extra_length = JCF_readu2_le (jcf);
|
1096 |
|
|
total_length = filename_length + extra_length
|
1097 |
|
|
+ compressed_size;
|
1098 |
|
|
if (jcf->read_end - jcf->read_ptr < total_length)
|
1099 |
|
|
jcf_trim_old_input (jcf);
|
1100 |
|
|
JCF_FILL (jcf, total_length);
|
1101 |
|
|
filename = (const char *) jcf->read_ptr;
|
1102 |
|
|
JCF_SKIP (jcf, filename_length);
|
1103 |
|
|
JCF_SKIP (jcf, extra_length);
|
1104 |
|
|
if (filename_length > 0
|
1105 |
|
|
&& filename[filename_length-1] == '/')
|
1106 |
|
|
{
|
1107 |
|
|
if (flag_print_class_info)
|
1108 |
|
|
fprintf (out, "[Skipping directory %.*s]\n",
|
1109 |
|
|
filename_length, filename);
|
1110 |
|
|
skip = 1;
|
1111 |
|
|
}
|
1112 |
|
|
else if (compression_method != 0)
|
1113 |
|
|
{
|
1114 |
|
|
if (flag_print_class_info)
|
1115 |
|
|
fprintf (out, "[Skipping compressed file %.*s]\n",
|
1116 |
|
|
filename_length, filename);
|
1117 |
|
|
skip = 1;
|
1118 |
|
|
}
|
1119 |
|
|
else if (member_size < 4
|
1120 |
|
|
|| GET_u4 (jcf->read_ptr) != 0xcafebabe)
|
1121 |
|
|
{
|
1122 |
|
|
if (flag_print_class_info)
|
1123 |
|
|
fprintf (out, "[Skipping non-.class member %.*s]\n",
|
1124 |
|
|
filename_length, filename);
|
1125 |
|
|
skip = 1;
|
1126 |
|
|
}
|
1127 |
|
|
else
|
1128 |
|
|
{
|
1129 |
|
|
if (flag_print_class_info)
|
1130 |
|
|
fprintf (out, "Reading class member: %.*s.\n",
|
1131 |
|
|
filename_length, filename);
|
1132 |
|
|
}
|
1133 |
|
|
if (skip)
|
1134 |
|
|
{
|
1135 |
|
|
JCF_SKIP (jcf, compressed_size);
|
1136 |
|
|
}
|
1137 |
|
|
else
|
1138 |
|
|
{
|
1139 |
|
|
unsigned char *save_end;
|
1140 |
|
|
jcf->filbuf = jcf_unexpected_eof;
|
1141 |
|
|
save_end = jcf->read_end;
|
1142 |
|
|
jcf->read_end = jcf->read_ptr + compressed_size;
|
1143 |
|
|
process_class (jcf);
|
1144 |
|
|
jcf->filbuf = save_filbuf;
|
1145 |
|
|
jcf->read_end = save_end;
|
1146 |
|
|
}
|
1147 |
|
|
}
|
1148 |
|
|
}
|
1149 |
|
|
else
|
1150 |
|
|
{
|
1151 |
|
|
if (flag_print_class_info)
|
1152 |
|
|
fprintf (out, "Reading .class from %s.\n", class_filename);
|
1153 |
|
|
process_class (jcf);
|
1154 |
|
|
}
|
1155 |
|
|
JCF_FINISH(jcf);
|
1156 |
|
|
}
|
1157 |
|
|
}
|
1158 |
|
|
|
1159 |
|
|
return SUCCESS_EXIT_CODE;
|
1160 |
|
|
}
|
1161 |
|
|
|
1162 |
|
|
|
1163 |
|
|
|
1164 |
|
|
static void
|
1165 |
|
|
disassemble_method (JCF* jcf, const unsigned char *byte_ops, int len)
|
1166 |
|
|
{
|
1167 |
|
|
#undef PTR
|
1168 |
|
|
int PC;
|
1169 |
|
|
int i;
|
1170 |
|
|
int saw_wide = 0;
|
1171 |
|
|
if (flag_disassemble_methods == 0)
|
1172 |
|
|
return;
|
1173 |
|
|
#define BCODE byte_ops
|
1174 |
|
|
for (PC = 0; PC < len;)
|
1175 |
|
|
{
|
1176 |
|
|
int oldpc = PC;
|
1177 |
|
|
int saw_index;
|
1178 |
|
|
jint INT_temp;
|
1179 |
|
|
switch (byte_ops[PC++])
|
1180 |
|
|
{
|
1181 |
|
|
|
1182 |
|
|
/* This is the actual code emitted for each of opcodes in javaops.def.
|
1183 |
|
|
The actual opcode-specific stuff is handled by the OPKIND macro.
|
1184 |
|
|
I.e. for an opcode whose OPKIND is BINOP, the BINOP will be called.
|
1185 |
|
|
Those macros are defined below. The OPKINDs that do not have any
|
1186 |
|
|
inline parameters (such as BINOP) and therefore do mot need anything
|
1187 |
|
|
else to me printed out just use an empty body. */
|
1188 |
|
|
|
1189 |
|
|
#define JAVAOP(OPNAME, OPCODE, OPKIND, OPERAND_TYPE, OPERAND_VALUE) \
|
1190 |
|
|
case OPCODE: \
|
1191 |
|
|
fprintf (out, "%3d: %s", oldpc, #OPNAME); \
|
1192 |
|
|
OPKIND(OPERAND_TYPE, OPERAND_VALUE); \
|
1193 |
|
|
fputc ('\n', out); \
|
1194 |
|
|
break;
|
1195 |
|
|
|
1196 |
|
|
#define CONST_INDEX_1 (saw_index = 1, IMMEDIATE_u1)
|
1197 |
|
|
#define CONST_INDEX_2 (saw_index = 1, IMMEDIATE_u2)
|
1198 |
|
|
#define VAR_INDEX_1 (saw_index = 1, IMMEDIATE_u1)
|
1199 |
|
|
#define VAR_INDEX_2 (saw_index = 1, IMMEDIATE_u2)
|
1200 |
|
|
|
1201 |
|
|
#define CHECK_PC_IN_RANGE(PC) (PC < 0 || PC > len ? \
|
1202 |
|
|
(fprintf(stderr, _("Bad byte codes.\n")), exit(-1), 0) : 1)
|
1203 |
|
|
|
1204 |
|
|
/* Print out operand (if not implied by the opcode) for PUSCH opcodes.
|
1205 |
|
|
These all push a constant onto the opcode stack. */
|
1206 |
|
|
#define PUSHC(OPERAND_TYPE, OPERAND_VALUE) \
|
1207 |
|
|
saw_index = 0, i = (OPERAND_VALUE); \
|
1208 |
|
|
if (oldpc+1 == PC) /* nothing */; \
|
1209 |
|
|
else if (saw_index) fprintf (out, " "), print_constant_ref (out, jcf, i); \
|
1210 |
|
|
else fprintf (out, " %d", i);
|
1211 |
|
|
|
1212 |
|
|
/* Print out operand (a local variable index) for LOAD opcodes.
|
1213 |
|
|
These all push local variable onto the opcode stack. */
|
1214 |
|
|
#define LOAD(OPERAND_TYPE, OPERAND_VALUE) \
|
1215 |
|
|
INT_temp = saw_wide ? IMMEDIATE_u2 : (OPERAND_VALUE); goto load_store;
|
1216 |
|
|
|
1217 |
|
|
/* Handle STORE opcodes same as LOAD opcodes.
|
1218 |
|
|
These all store a value from the opcode stack in a local variable. */
|
1219 |
|
|
#define STORE LOAD
|
1220 |
|
|
|
1221 |
|
|
/* Handle more kind of opcodes. */
|
1222 |
|
|
#define STACK(OPERAND_TYPE, OPERAND_VALUE) /* nothing */
|
1223 |
|
|
#define UNOP(OPERAND_TYPE, OPERAND_VALUE) /* nothing */
|
1224 |
|
|
#define BINOP(OPERAND_TYPE, OPERAND_VALUE) /* nothing */
|
1225 |
|
|
#define CONVERT(OPERAND_TYPE, OPERAND_VALUE) /* nothing */
|
1226 |
|
|
#define CONVERT2(OPERAND_TYPE, OPERAND_VALUE) /* nothing */
|
1227 |
|
|
#define RETURN(OPERAND_TYPE, OPERAND_VALUE) /* nothing */
|
1228 |
|
|
#define UNKNOWN(OPERAND_TYPE, OPERAND_VALUE) /* nothing */
|
1229 |
|
|
|
1230 |
|
|
/* Handle putfield and getfield opcodes, with static versions. */
|
1231 |
|
|
#define FIELD(MAYBE_STATIC, PUT_OR_GET) \
|
1232 |
|
|
fputc (' ', out); print_constant_ref (out, jcf, IMMEDIATE_u2)
|
1233 |
|
|
|
1234 |
|
|
/* Print operand for invoke opcodes. */
|
1235 |
|
|
#define INVOKE(OPERAND_TYPE, OPERAND_VALUE) \
|
1236 |
|
|
fputc (' ', out); print_constant_ref (out, jcf, IMMEDIATE_u2);\
|
1237 |
|
|
if (OPERAND_VALUE) /* for invokeinterface */ \
|
1238 |
|
|
{ int nargs = IMMEDIATE_u1; PC++; \
|
1239 |
|
|
fprintf (out, " nargs:%d", nargs); }
|
1240 |
|
|
|
1241 |
|
|
#define OBJECT(OPERAND_TYPE, OPERAND_VALUE) \
|
1242 |
|
|
fputc (' ', out); print_constant_ref (out, jcf, IMMEDIATE_u2);
|
1243 |
|
|
|
1244 |
|
|
#define ARRAY(OPERAND_TYPE, SUBOP) \
|
1245 |
|
|
ARRAY_##SUBOP(OPERAND_TYPE)
|
1246 |
|
|
/* Handle sub-categories of ARRAY opcodes. */
|
1247 |
|
|
#define ARRAY_LOAD(TYPE) /* nothing */
|
1248 |
|
|
#define ARRAY_STORE(TYPE) /* nothing */
|
1249 |
|
|
#define ARRAY_LENGTH(TYPE) /* nothing */
|
1250 |
|
|
#define ARRAY_NEW(TYPE) ARRAY_NEW_##TYPE
|
1251 |
|
|
#define ARRAY_NEW_NUM \
|
1252 |
|
|
INT_temp = IMMEDIATE_u1; \
|
1253 |
|
|
{ switch ((int) INT_temp) { \
|
1254 |
|
|
case 4: fputs (" boolean", out); break; \
|
1255 |
|
|
case 5: fputs (" char", out); break; \
|
1256 |
|
|
case 6: fputs (" float", out); break; \
|
1257 |
|
|
case 7: fputs (" double", out); break; \
|
1258 |
|
|
case 8: fputs (" byte", out); break; \
|
1259 |
|
|
case 9: fputs (" short", out); break; \
|
1260 |
|
|
case 10: fputs (" int", out); break; \
|
1261 |
|
|
case 11: fputs (" long", out); break; \
|
1262 |
|
|
default: fprintf (out, " <unknown type code %ld>", (long)INT_temp); break;\
|
1263 |
|
|
} }
|
1264 |
|
|
|
1265 |
|
|
#define ARRAY_NEW_PTR \
|
1266 |
|
|
fputc (' ', out); print_constant_ref (out, jcf, IMMEDIATE_u2);
|
1267 |
|
|
|
1268 |
|
|
#define ARRAY_NEW_MULTI \
|
1269 |
|
|
fputc (' ', out); print_constant_ref (out, jcf, IMMEDIATE_u2); \
|
1270 |
|
|
fprintf (out, " %d", IMMEDIATE_u1); /* number of dimensions */
|
1271 |
|
|
|
1272 |
|
|
#define TEST(OPERAND_TYPE, OPERAND_VALUE) \
|
1273 |
|
|
fprintf (out, " %d", oldpc + IMMEDIATE_s2)
|
1274 |
|
|
|
1275 |
|
|
#define BRANCH(OPERAND_TYPE, OPERAND_VALUE) \
|
1276 |
|
|
saw_index = 0, INT_temp = (OPERAND_VALUE); \
|
1277 |
|
|
fprintf (out, " %ld", (long) (saw_index ? INT_temp : oldpc + INT_temp))
|
1278 |
|
|
|
1279 |
|
|
#define JSR(OPERAND_TYPE, OPERAND_VALUE) \
|
1280 |
|
|
saw_index = 0, INT_temp = (OPERAND_VALUE); \
|
1281 |
|
|
fprintf (out, " %ld", (long) (saw_index ? INT_temp : oldpc + INT_temp))
|
1282 |
|
|
|
1283 |
|
|
#undef RET /* Defined by config/i386/i386.h */
|
1284 |
|
|
#define RET(OPERAND_TYPE, OPERAND_VALUE) \
|
1285 |
|
|
INT_temp = saw_wide ? IMMEDIATE_u2 : (OPERAND_VALUE); \
|
1286 |
|
|
saw_wide = 0; \
|
1287 |
|
|
fprintf (out, " %ld", (long) INT_temp);
|
1288 |
|
|
|
1289 |
|
|
#define SWITCH(OPERAND_TYPE, TABLE_OR_LOOKUP) \
|
1290 |
|
|
PC = (PC + 3) / 4 * 4; TABLE_OR_LOOKUP##_SWITCH
|
1291 |
|
|
|
1292 |
|
|
#define LOOKUP_SWITCH \
|
1293 |
|
|
{ jint default_offset = IMMEDIATE_s4; jint npairs = IMMEDIATE_s4; \
|
1294 |
|
|
fprintf (out, " npairs=%ld, default=%ld", (long) npairs, (long) default_offset+oldpc); \
|
1295 |
|
|
while (--npairs >= 0) { \
|
1296 |
|
|
jint match = IMMEDIATE_s4; jint offset = IMMEDIATE_s4; \
|
1297 |
|
|
fprintf (out, "\n%10ld: %ld", (long)match, (long)(offset+oldpc)); } \
|
1298 |
|
|
}
|
1299 |
|
|
|
1300 |
|
|
#define TABLE_SWITCH \
|
1301 |
|
|
{ jint default_offset = IMMEDIATE_s4; \
|
1302 |
|
|
jint low = IMMEDIATE_s4; jint high = IMMEDIATE_s4; \
|
1303 |
|
|
fprintf (out, " low=%ld, high=%ld, default=%ld", \
|
1304 |
|
|
(long) low, (long) high, (long) default_offset+oldpc); \
|
1305 |
|
|
for (; low <= high; low++) { \
|
1306 |
|
|
jint offset = IMMEDIATE_s4; \
|
1307 |
|
|
fprintf (out, "\n%10ld: %ld", (long)low, (long)(offset+oldpc)); } \
|
1308 |
|
|
}
|
1309 |
|
|
|
1310 |
|
|
#define SPECIAL(OPERAND_TYPE, OPERAND_VALUE) \
|
1311 |
|
|
SPECIAL_##OPERAND_VALUE(OPERAND_TYPE)
|
1312 |
|
|
|
1313 |
|
|
#define SPECIAL_IINC(OPERAND_TYPE) \
|
1314 |
|
|
i = saw_wide ? IMMEDIATE_u2 : IMMEDIATE_u1; \
|
1315 |
|
|
fprintf (out, " %d", i); \
|
1316 |
|
|
i = saw_wide ? IMMEDIATE_s2 : IMMEDIATE_s1; \
|
1317 |
|
|
saw_wide = 0; \
|
1318 |
|
|
fprintf (out, " %d", i)
|
1319 |
|
|
|
1320 |
|
|
#define SPECIAL_WIDE(OPERAND_TYPE) \
|
1321 |
|
|
saw_wide = 1;
|
1322 |
|
|
|
1323 |
|
|
#define SPECIAL_EXIT(OPERAND_TYPE) /* nothing */
|
1324 |
|
|
#define SPECIAL_ENTER(OPERAND_TYPE) /* nothing */
|
1325 |
|
|
#define SPECIAL_BREAK(OPERAND_TYPE) /* nothing */
|
1326 |
|
|
#define SPECIAL_THROW(OPERAND_TYPE) /* nothing */
|
1327 |
|
|
|
1328 |
|
|
#define IMPL(OPERAND_TYPE, OPERAND_VALUE) \
|
1329 |
|
|
fprintf (out, " %d", IMMEDIATE_u##OPERAND_VALUE)
|
1330 |
|
|
|
1331 |
|
|
#define COND(OPERAND_TYPE, OPERAND_VALUE) \
|
1332 |
|
|
TEST(OPERAND_TYPE, OPERAND_VALUE)
|
1333 |
|
|
|
1334 |
|
|
#include "javaop.def"
|
1335 |
|
|
|
1336 |
|
|
load_store:
|
1337 |
|
|
if (oldpc+1 == PC) /* nothing - local index implied by opcode */;
|
1338 |
|
|
else
|
1339 |
|
|
{
|
1340 |
|
|
saw_wide = 0;
|
1341 |
|
|
fprintf (out, " %ld", (long) INT_temp);
|
1342 |
|
|
}
|
1343 |
|
|
fputc ('\n', out);
|
1344 |
|
|
break;
|
1345 |
|
|
|
1346 |
|
|
default:
|
1347 |
|
|
fprintf (out, "%3d: unknown(%3d)\n", oldpc, byte_ops[PC]);
|
1348 |
|
|
}
|
1349 |
|
|
}
|
1350 |
|
|
}
|