Initial revision

From-SVN: r22299

1 files changed, 1072 insertions, 0 deletions

diff --git a/gcc/java/jcf-dump.c b/gcc/java/jcf-dump.c
new file mode 100644
index 0000000..749aa82
--- /dev/null
+++ b/gcc/java/jcf-dump.c
@@ -0,0 +1,1072 @@
+/* Program to dump out a Java(TM) .class file.
+   Functionally similar to Sun's javap.
+
+   Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU CC; see the file COPYING.  If not, write to
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  
+
+Java and all Java-based marks are trademarks or registered trademarks
+of Sun Microsystems, Inc. in the United States and other countries.
+The Free Software Foundation is independent of Sun Microsystems, Inc.  */
+
+/* Written by Per Bothner <bothner@cygnus.com>, February 1996. */
+
+/*
+  jcf-dump is a program to print out the contents of class files.
+  Usage:  jcf-dump [FLAGS] CLASS
+  Each CLASS is either:
+  + the name of a class in the CLASSPATH (e.g "java.lang.String"), or
+  + the name of a class *file* (e.g. "/home/me/work/package/Foo.class").
+  + The name of a .zip or .jar file (which prints all the classes in the
+  archive).
+
+  OPTIONS:
+  -c
+	Dis-assemble each method.
+  -classpath PATH
+	Overrides $CLASSPATH.
+  --print-main
+	Print nothing if there is no valid "main" method;
+	otherwise, print only the class name.
+  --javap
+	Print output in the style of Sun's javap program.  VERY UNFINISHED.
+ */
+    
+
+#include <stdio.h>
+#include "jcf.h"
+
+/* Outout file. */
+FILE *out;
+/* Name of output file, if NULL if stdout. */
+char *output_file = NULL;
+
+int verbose = 0;
+
+int flag_disassemble_methods = 0;
+int flag_print_class_info = 1;
+int flag_print_constant_pool = 1;
+int flag_print_fields = 1;
+int flag_print_methods = 1;
+int flag_print_attributes = 1;
+
+/* Print names of classes that have a "main" method. */
+int flag_print_main = 0;
+
+/* Index in constant pool of this class. */
+int this_class_index = 0;
+
+int class_access_flags = 0;
+
+/* Print in format similar to javap.  VERY IMCOMPLETE. */
+int flag_javap_compatible = 0;
+
+static int print_access_flags PROTO ((FILE *, uint16));
+static void print_constant_terse PROTO ((FILE*, JCF*, int, int));
+static void print_constant PROTO ((FILE *, JCF *, int, int));
+static void print_constant_ref PROTO ((FILE *, JCF *, int));
+static void disassemble_method PROTO ((JCF*, unsigned char *, int));
+static void print_name PROTO ((FILE*, JCF*, int));
+static void print_signature PROTO ((FILE*, JCF*, int, int));
+
+#define PRINT_SIGNATURE_RESULT_ONLY 1
+#define PRINT_SIGNATURE_ARGS_ONLY 2
+
+extern char* open_class();
+
+int
+DEFUN(utf8_equal_string, (jcf, index, value),
+      JCF *jcf AND int index AND char * value)
+{
+  if (CPOOL_INDEX_IN_RANGE (&jcf->cpool, index)
+      && JPOOL_TAG (jcf, index) == CONSTANT_Utf8)
+    {
+      int len = strlen (value);
+      if (JPOOL_UTF_LENGTH (jcf, index) == len
+	  && memcmp (JPOOL_UTF_DATA (jcf, index), value, len) == 0)
+	return 1;
+    }
+  return 0;
+}
+
+#define HANDLE_MAGIC(MAGIC, MINOR, MAJOR) \
+  this_class_index = 0; \
+  if (flag_print_class_info) \
+    fprintf (out, \
+             "Magic number: 0x%0x, minor_version: %d, major_version: %d.\n", \
+	     MAGIC, MINOR, MAJOR)
+
+#define HANDLE_START_CONSTANT_POOL(COUNT) \
+  if (flag_print_constant_pool) \
+    fprintf (out, "\nConstant pool (count: %d):\n", COUNT)
+
+#define HANDLE_SOURCEFILE(INDEX) \
+{ fprintf (out, "Attribute "); \
+  print_constant_terse (out, jcf, attribute_name, CONSTANT_Utf8); \
+  fprintf (out, ", length:%d, #%d=", attribute_length, INDEX); \
+  print_constant_terse (out, jcf, INDEX, CONSTANT_Utf8); fputc ('\n', out); }
+
+#define HANDLE_CLASS_INFO(ACCESS_FLAGS, THIS, SUPER, INTERFACES_COUNT) \
+  this_class_index = THIS; \
+  class_access_flags = ACCESS_FLAGS; \
+  if (flag_print_class_info) \
+    { fprintf (out, "\nAccess flags: 0x%x", ACCESS_FLAGS); \
+      print_access_flags (out, ACCESS_FLAGS); \
+      fputc ('\n', out); \
+      fprintf (out, "This class: "); \
+      if (flag_print_constant_pool) \
+        fprintf (out, "%d=", THIS); \
+      print_constant_terse (out, jcf, THIS, CONSTANT_Class); \
+      if (flag_print_constant_pool || SUPER != 0) \
+        fprintf (out, ", super: "); \
+      if (flag_print_constant_pool) \
+        { \
+          fprintf (out, "%d", SUPER); \
+          if (SUPER != 0) \
+            fputc ('=', out); \
+        } \
+      if (SUPER != 0) \
+        print_constant_terse (out, jcf, SUPER, CONSTANT_Class); \
+      fprintf (out, "\nInterfaces (count: %d):\n", INTERFACES_COUNT); \
+    }
+
+#define IGNORE_ATTRIBUTE(JCF, NAME, NAME_LENGTH) \
+  (flag_print_attributes <= 0)
+
+#define HANDLE_CLASS_INTERFACE(INDEX) \
+  if (flag_print_class_info) \
+    { fprintf (out, "- Implements: %d=", INDEX); \
+      print_constant_terse (out, jcf, INDEX, CONSTANT_Class); \
+      fputc ('\n', out); }
+
+#define HANDLE_START_FIELDS(FIELDS_COUNT) \
+  if (flag_print_fields) \
+    fprintf (out, "\nFields (count: %d):\n", FIELDS_COUNT)
+
+#define HANDLE_START_FIELD(ACCESS_FLAGS, NAME, SIGNATURE, ATTRIBUTE_COUNT) \
+  if (flag_print_fields) \
+    { fprintf (out, "Field name:"); \
+      print_constant_terse (out, jcf, NAME, CONSTANT_Utf8); \
+      print_access_flags (out, ACCESS_FLAGS); \
+      fprintf (out, " Signature: "); \
+      if (flag_print_constant_pool) \
+        fprintf (out, "%d=", SIGNATURE); \
+      print_signature (out, jcf, SIGNATURE, 0); \
+      fputc ('\n', out); } \
+  else \
+    flag_print_attributes--;
+
+#define HANDLE_END_FIELD() \
+  if (! flag_print_fields) \
+    flag_print_attributes++;
+
+#define HANDLE_START_METHODS(METHODS_COUNT) \
+  if (flag_print_methods) \
+    fprintf (out, "\nMethods (count: %d):\n", METHODS_COUNT); \
+  else \
+    flag_print_attributes--;
+
+
+#define HANDLE_END_METHODS() \
+  if (! flag_print_methods) \
+    flag_print_attributes++;
+
+#define HANDLE_METHOD(ACCESS_FLAGS, NAME, SIGNATURE, ATTRIBUTE_COUNT) \
+{ \
+  if (flag_print_methods) \
+    { \
+      if (flag_javap_compatible) \
+        { \
+	  fprintf (out, "    "); \
+	  print_access_flags (out, ACCESS_FLAGS); \
+	  fputc (' ', out); \
+	  print_signature (out, jcf, SIGNATURE, PRINT_SIGNATURE_RESULT_ONLY); \
+	  fputc (' ', out); \
+	  print_constant_terse (out, jcf, NAME, CONSTANT_Utf8); \
+	  print_signature (out, jcf, SIGNATURE, PRINT_SIGNATURE_ARGS_ONLY); \
+	  fputc ('\n', out); \
+	} \
+      else \
+	{ \
+	  fprintf (out, "\nMethod name:"); \
+	  print_constant_terse (out, jcf, NAME, CONSTANT_Utf8); \
+	  print_access_flags (out, ACCESS_FLAGS); \
+	  fprintf (out, " Signature: "); \
+	  if (flag_print_constant_pool) \
+	    fprintf (out, "%d=", SIGNATURE); \
+	  print_signature (out, jcf, SIGNATURE, 0); \
+	  fputc ('\n', out); \
+	} \
+    } \
+  if (flag_print_main && ACCESS_FLAGS == (ACC_STATIC|ACC_PUBLIC) \
+      && utf8_equal_string (jcf, NAME, "main") \
+      && utf8_equal_string (jcf, SIGNATURE, "([Ljava/lang/String;)V") \
+      && this_class_index > 0 \
+      && (class_access_flags & ACC_PUBLIC)) \
+    { \
+      print_constant_terse(out, jcf, this_class_index, CONSTANT_Class); \
+      fputc  ('\n', out); \
+   } \
+}
+
+#define COMMON_HANDLE_ATTRIBUTE(JCF, INDEX, LENGTH) \
+( fprintf (out, "Attribute "), \
+  print_constant_terse (out, jcf, INDEX, CONSTANT_Utf8), \
+  fprintf (out, ", length:%d", LENGTH) )
+
+#define HANDLE_CONSTANTVALUE(VALUE_INDEX) \
+( COMMON_HANDLE_ATTRIBUTE(JCF, attribute_name, attribute_length), \
+  fprintf (out, ", value: "), \
+  print_constant_ref (out, jcf, VALUE_INDEX), \
+  fprintf (out, "\n") )
+
+#define HANDLE_CODE_ATTRIBUTE(MAX_STACK, MAX_LOCALS, CODE_LENGTH) \
+{ COMMON_HANDLE_ATTRIBUTE(JCF, attribute_name, attribute_length); \
+  fprintf (out, ", max_stack:%d, max_locals:%d, code_length:%d\n", \
+    MAX_STACK, MAX_LOCALS, CODE_LENGTH); \
+  disassemble_method (jcf, jcf->read_ptr, CODE_LENGTH); }
+
+#define HANDLE_EXCEPTIONS_ATTRIBUTE(COUNT) \
+{ int n = (COUNT); int i; \
+  COMMON_HANDLE_ATTRIBUTE(JCF, attribute_name, attribute_length); \
+  fprintf (out, ", count: %d\n", n); \
+  for (i = 0; i < n; i++) {\
+    int ex_index = JCF_readu2 (jcf); \
+    fprintf (out, "%3d: ", i); \
+    print_constant_ref (out, jcf, ex_index); \
+    fputc ('\n', out); } }
+
+#define HANDLE_LOCALVARIABLETABLE_ATTRIBUTE(COUNT) \
+{ int n = (COUNT); int i; \
+  COMMON_HANDLE_ATTRIBUTE(JCF, attribute_name, attribute_length); \
+  fprintf (out, ", count: %d\n", n); \
+  for (i = 0; i < n; i++) {\
+    int start_pc = JCF_readu2 (jcf); \
+    int length = JCF_readu2 (jcf); \
+    int name_index = JCF_readu2 (jcf); \
+    int signature_index = JCF_readu2 (jcf); \
+    int slot = JCF_readu2 (jcf); \
+    fprintf (out, "  slot#%d: name: %d=", slot, name_index); \
+    print_name (out, jcf, name_index); \
+    fprintf (out, ", type: %d=", signature_index); \
+    print_signature (out, jcf, signature_index, 0); \
+    fprintf (out, " (pc: %d length: %d)\n", start_pc, length); }}
+
+#define HANDLE_LINENUMBERTABLE_ATTRIBUTE(COUNT) \
+{ int n = (COUNT); int i; \
+  COMMON_HANDLE_ATTRIBUTE(jcf, attribute_name, attribute_length); \
+  fprintf (out, ", count: %d\n", n); \
+  if (flag_disassemble_methods) \
+    for (i = 0; i < n; i++) {\
+      int start_pc = JCF_readu2 (jcf); \
+      int line_number = JCF_readu2 (jcf); \
+      fprintf (out, "  line: %d at pc: %d\n", line_number, start_pc); }\
+  else \
+    JCF_SKIP (jcf, 4 * 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"
+#include "jcf-reader.c"
+
+static void
+DEFUN(print_constant_ref, (stream, jcf, index),
+      FILE *stream AND JCF *jcf AND int index)
+{
+  fprintf (stream, "#%d=<", index);
+  if (index <= 0 || index >= JPOOL_SIZE(jcf))
+    fprintf (stream, "out of range");
+  else
+    print_constant (stream, jcf, index, 1);
+  fprintf (stream, ">", index);
+}
+
+static int
+DEFUN (print_access_flags, (stream, flags),
+       FILE *stream AND uint16 flags)
+{
+  if (flags & ACC_PUBLIC) fprintf (stream, " public");
+  if (flags & ACC_PRIVATE) fprintf (stream, " private");
+  if (flags & ACC_PROTECTED) fprintf (stream, " protected");
+  if (flags & ACC_STATIC) fprintf (stream, " static");
+  if (flags & ACC_FINAL) fprintf (stream, " final");
+  if (flags & ACC_SYNCHRONIZED) fprintf (stream, " synchronized");
+  if (flags & ACC_VOLATILE) fprintf (stream, " volatile");
+  if (flags & ACC_TRANSIENT) fprintf (stream, " transient");
+  if (flags & ACC_NATIVE) fprintf (stream, " native");
+  if (flags & ACC_INTERFACE) fprintf (stream, " interface");
+  if (flags & ACC_ABSTRACT) fprintf (stream, " abstract");
+}
+
+
+static void
+DEFUN(print_name, (stream, jcf, name_index),
+      FILE* stream AND JCF* jcf AND 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. */
+
+void
+DEFUN(print_constant_terse, (out, jcf, index, expected),
+      FILE *out AND JCF *jcf AND int index AND int expected)
+{
+  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);
+}
+
+/* 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
+DEFUN(print_constant, (out, jcf, index, verbosity),
+      FILE *out AND JCF *jcf AND int index AND int verbosity)
+{
+  int j, n;
+  jlong num;
+  char *str;
+  int kind = JPOOL_TAG (jcf, index);
+  switch (kind)
+    {
+    case CONSTANT_Class:
+      n = JPOOL_USHORT1 (jcf, index);
+      if (verbosity > 0)
+	fprintf (out, verbosity > 1 ? "Class name: %d=" : "Class ", n);
+      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);
+	fprintf (out, verbosity < 2 ? "." : " 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)
+	fprintf (out, verbosity > 1 ? "String %d=" : "String ", j);
+      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);
+	fprintf (out, "%s%.10g", verbosity > 1 ? "Float " : "", (double) fnum);
+	if (verbosity > 1)
+	  fprintf (out, ", bits = 0x%08lx", (long) (* (int32 *) &fnum));
+	break;
+      }
+    case CONSTANT_Double:
+      {
+	jdouble dnum = JPOOL_DOUBLE (jcf, index);
+	fprintf (out, "%s%.20g", verbosity > 1 ? "Double " : "", dnum);
+	if (verbosity > 1)
+	  {
+	    int32 hi, lo;
+	    hi = JPOOL_UINT (jcf, index);
+	    lo = JPOOL_UINT (jcf, index + 1);
+	    fprintf (out, ", bits = 0x%08lx%08lx", (long) hi, (long) lo);
+	  }
+	break;
+      }
+    case CONSTANT_NameAndType:
+      {
+	uint16 name = JPOOL_USHORT1 (jcf, index);
+	uint16 sig = JPOOL_USHORT2 (jcf, index);
+	if (verbosity > 0)
+	  fprintf (out, verbosity > 1 ? "%s name: %d=" : "%s ",
+		   "NameAndType", name);
+	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:
+      {
+	register 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;
+    default:
+      fprintf (out, "(Unknown constant type %d)", kind);
+    }
+}
+
+void
+DEFUN(print_constant_pool, (jcf),
+      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
+DEFUN(print_signature_type, (stream, ptr, limit),
+     FILE* stream AND const unsigned char **ptr AND const unsigned char *limit)
+{
+  int array_size;
+  if ((*ptr) >= limit)
+    return;
+  switch (*(*ptr))
+    {
+    case '[':
+      array_size = -1;
+      for ((*ptr)++; (*ptr) < limit && isdigit (**ptr); (*ptr)++)
+	{
+	  int digit = 
+	    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
+DEFUN(print_signature, (stream, jcf, signature_index, int options),
+      FILE* stream AND JCF *jcf AND int signature_index AND int options)
+{
+  if (JPOOL_TAG (jcf, signature_index) != CONSTANT_Utf8)
+    print_constant_terse (out, jcf, signature_index, CONSTANT_Utf8);
+  else
+    {
+      int j;
+      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);
+		}
+	    }
+	}
+    }
+}
+
+int
+DEFUN (usage, (), )
+{
+  fprintf (stderr, "Usage: jcf-dump [-o outputfile] [-c] classname\n");
+  exit(1);
+}
+
+void
+DEFUN(process_class, (jcf),
+      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 (-1);
+    }
+  code = verify_constant_pool (jcf);
+  if (code > 0)
+    {
+      fprintf (stderr, "error in constant pool entry #%d\n", code);
+      exit (-1);
+    }
+  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 (-1);
+    }
+  code = jcf_parse_methods (jcf);
+  if (code != 0)
+    {
+      fprintf (stderr, "error while parsing methods\n");
+      exit (-1);
+    }
+  code = jcf_parse_final_attributes (jcf);
+  if (code != 0)
+    {
+      fprintf (stderr, "error while parsing final attributes\n");
+      exit (-1);
+    }
+  jcf->filename = NULL;
+}
+
+int
+DEFUN(main, (argc, argv),
+      int argc AND char** argv)
+{
+  JCF jcf[1];
+  int argi;
+  if (argc <= 1)
+    usage ();
+
+  for (argi = 1; argi < argc; argi++)
+    {
+      char *arg = argv[argi];
+      if (arg[0] == '-')
+	{
+	  if (strcmp (arg, "-o") == 0 && argi + 1 < argc)
+	    output_file = argv[++argi];
+	  else if (arg[1] == '-')
+	    {
+	      arg++;
+	      if (strcmp (arg, "-classpath") == 0 && argi + 1 < argc)
+		classpath = argv[++argi];
+	      else if (strcmp (arg, "-verbose") == 0)
+		verbose++;
+	      else if (strcmp (arg, "-print-main") == 0)
+		flag_print_main++;
+	      else if (strcmp (arg, "-javap") == 0)
+		{
+		  flag_javap_compatible++;
+		  flag_print_constant_pool = 0;
+		}
+	      else if (arg[2] == '\0')
+		break;
+	      else
+		{
+		  fprintf (stderr, "%s: illegal argument\n", argv[argi]);
+		  exit (-1);
+		}
+	      
+	    }
+	  else if (strcmp (arg, "-classpath") == 0 && argi + 1 < argc)
+	    classpath = argv[++argi];
+	  else if (strcmp (arg, "-verbose") == 0)
+	    verbose++;
+	  else if (strcmp (arg, "-print-main") == 0)
+	    flag_print_main++;
+	  else if (strcmp (arg, "-c") == 0)
+	    flag_disassemble_methods++;
+	  else
+	    {
+	      fprintf (stderr, "%s: illegal argument\n", argv[argi]);
+	      exit (-1);
+	    }
+	}
+      else
+	break;
+    }
+  if (argi == argc)
+    usage ();
+  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 (classpath == NULL)
+    {
+      classpath = (char *) getenv ("CLASSPATH");
+      if (classpath == NULL)
+	classpath = "";
+    }
+
+  if (output_file)
+    {
+      out = fopen (output_file, "w");
+      if (out)
+	{
+	  fprintf (stderr, "Cannot open '%s' for output.\n", output_file);
+	  exit (-1);
+	}
+    }
+  else
+    out = stdout;
+
+  if (argi >= argc)
+    {
+      fprintf (out, "Reading .class from <standard input>.\n");
+#if JCF_USE_STDIO
+      open_class ("<stdio>", jcf, stdin);
+#else
+      open_class ("<stdio>", jcf, 0);
+#endif
+      process_class (jcf);
+    }
+  else
+    {
+      for (; argi < argc; argi++)
+	{
+	  char *arg = argv[argi];
+	  char* class_filename = find_class (arg, strlen (arg), jcf, 1);
+	  if (class_filename == NULL)
+	    class_filename = find_classfile (arg, jcf);
+	  if (class_filename == NULL)
+	    {
+	      perror ("Could not find class");
+	      exit (-1);
+	    }
+	  JCF_FILL (jcf, 4);
+	  if (GET_u4 (jcf->read_ptr) == ZIPMAGIC)
+	    {
+	      long compressed_size, member_size;
+	      int compression_method, filename_length, extra_length;
+	      int general_purpose_bits;
+	      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 archine\n");
+		      exit (-1);
+		    }
+		  JCF_FILL (jcf, 26);
+		  JCF_SKIP (jcf, 2);
+		  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 = 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);
+	}
+    }
+}
+
+static void
+DEFUN(disassemble_method, (jcf, byte_ops, len),
+      JCF* jcf AND unsigned char *byte_ops AND int len)
+{
+#undef AND /* Causes problems with opcodes for iand and land. */
+#undef PTR
+  int PC;
+  int i;
+  if (flag_disassemble_methods == 0)
+    return;
+#define BCODE byte_ops
+  for (PC = 0; PC < len;)
+    {
+      int oldpc = PC;
+      int saw_index;
+      jlong LONG_temp;
+      jint INT_temp;
+      jfloat FLOAT_temp;
+      jdouble DOUBLE_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 defiend 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)) : 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, INT_temp = (OPERAND_VALUE); \
+  if (oldpc+1 == PC) /* nothing */; \
+  else if (saw_index) fprintf (out, " "), print_constant_ref (out, jcf, INT_temp); \
+  else fprintf (out, " %d", INT_temp);
+
+/* 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 = (OPERAND_VALUE); \
+  if (oldpc+1 == PC) /* nothing - local index implied by opcode */; \
+  else fprintf (out, " %d", INT_temp);
+
+/* 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);\
+  PC += 2 * OPERAND_VALUE /* for invokeinterface */;
+
+#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; \
+ { char *str; \
+  switch (INT_temp) {  \
+    case  4: str = "boolean"; break; \
+    case  5: str = "char"; break; \
+    case  6: str = "float"; break; \
+    case  7: str = "double"; break; \
+    case  8: str = "byte"; break; \
+    case  9: str = "short"; break; \
+    case 10: str = "int"; break; \
+    case 11: str = "long"; break; \
+    default: str = "<unknown type code %d>"; break; \
+  } \
+  fputc (' ', out); fprintf (out, str, INT_temp); }
+
+#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, " %d", saw_index ? INT_temp : oldpc + INT_temp)
+
+#define JSR(OPERAND_TYPE, OPERAND_VALUE) \
+  saw_index = 0, INT_temp = (OPERAND_VALUE); \
+  fprintf (out, " %d", saw_index ? INT_temp : oldpc + INT_temp)
+
+#define RET(OPERAND_TYPE, OPERAND_VALUE) \
+  INT_temp = (OPERAND_VALUE); \
+  fprintf (out, " %d", 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=%d, default=%d", npairs, 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==%d, high=%ddefault=%d", \
+      low, high, 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) \
+  INT_temp = IMMEDIATE_u1; \
+  fprintf (out, "%d %d", INT_temp, IMMEDIATE_s1)
+
+#define SPECIAL_WIDE(OPERAND_TYPE) \
+  INT_temp = IMMEDIATE_u1; fprintf (out, "%d", INT_temp)
+
+#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"
+	default:
+	  fprintf (out, "%3d: unknown(%3d)\n", oldpc, byte_ops[PC]);
+	}
+    }
+
+  /* Print exception table. */
+  i = GET_u2(byte_ops+len);
+  if (i > 0)
+    {
+      unsigned char *ptr = byte_ops+len+2;
+      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: %d",
+		   start_pc, end_pc, handler_pc, catch_type);
+	  if (catch_type == 0)
+	    fputs (" /* finally */", out);
+	  else
+	    {
+	      fputc('=', out);
+	      print_constant_terse (out, jcf, catch_type, CONSTANT_Class);
+	    }
+	  fputc ('\n', out);
+	}
+    }
+}