+++ /dev/null
-/* Program to dump out a Java(TM) .class file.
- Functionally similar to Sun's javap.
-
- Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002 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 "config.h"
-#include "system.h"
-
-#include "jcf.h"
-#include "tree.h"
-#include "java-tree.h"
-
-#include "version.h"
-
-#include <getopt.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;
-
-/* When non zero, warn when source file is newer than matching class
- file. */
-int flag_newer = 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 void print_access_flags PARAMS ((FILE *, uint16, char));
-static void print_constant_terse PARAMS ((FILE*, JCF*, int, int));
-static void print_constant PARAMS ((FILE *, JCF *, int, int));
-static void print_constant_ref PARAMS ((FILE *, JCF *, int));
-static void disassemble_method PARAMS ((JCF*, const unsigned char *, int));
-static void print_name PARAMS ((FILE*, JCF*, int));
-static void print_signature PARAMS ((FILE*, JCF*, int, int));
-static int utf8_equal_string PARAMS ((struct JCF*, int, const char *));
-static void usage PARAMS ((void)) ATTRIBUTE_NORETURN;
-static void help PARAMS ((void)) ATTRIBUTE_NORETURN;
-static void version PARAMS ((void)) ATTRIBUTE_NORETURN;
-static void process_class PARAMS ((struct JCF *));
-static void print_constant_pool PARAMS ((struct JCF *));
-static void print_exception_table PARAMS ((struct JCF *,
- const unsigned char *entries, int));
-
-#define PRINT_SIGNATURE_RESULT_ONLY 1
-#define PRINT_SIGNATURE_ARGS_ONLY 2
-
-static int
-DEFUN(utf8_equal_string, (jcf, index, value),
- JCF *jcf AND int index AND const 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%0lx, minor_version: %ld, major_version: %ld.\n",\
- (long) MAGIC, (long) MINOR, (long) 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:%ld, #%d=", (long) 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, 'c'); \
- 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, 'f'); \
- 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, 'm'); \
- 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, 'm'); \
- 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:%ld", (long) 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:%ld, max_locals:%ld, code_length:%ld\n", \
- (long) MAX_STACK, (long) MAX_LOCALS, (long) CODE_LENGTH); \
- disassemble_method (jcf, jcf->read_ptr, CODE_LENGTH); }
-
-#define HANDLE_EXCEPTION_TABLE(ENTRIES, COUNT) \
- print_exception_table (jcf, ENTRIES, COUNT)
-
-#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 HANDLE_INNERCLASSES_ATTRIBUTE(COUNT) \
-{ int n = (COUNT); \
- COMMON_HANDLE_ATTRIBUTE(jcf, attribute_name, attribute_length); \
- while (n--) \
- { \
- uint16 inner_class_info_index = JCF_readu2 (jcf); \
- uint16 outer_class_info_index = JCF_readu2 (jcf); \
- uint16 inner_name_index = JCF_readu2 (jcf); \
- uint16 inner_class_access_flags = JCF_readu2 (jcf); \
- \
- if (flag_print_class_info) \
- { \
- fprintf (out, "\n class: "); \
- if (flag_print_constant_pool) \
- fprintf (out, "%d=", inner_class_info_index); \
- print_constant_terse (out, jcf, \
- inner_class_info_index, CONSTANT_Class); \
- fprintf (out, " (%d=", inner_name_index); \
- print_constant_terse (out, jcf, inner_name_index, CONSTANT_Utf8); \
- fprintf (out, "), access flags: 0x%x", inner_class_access_flags); \
- print_access_flags (out, inner_class_access_flags, 'c'); \
- fprintf (out, ", outer class: "); \
- if (flag_print_constant_pool) \
- fprintf (out, "%d=", outer_class_info_index); \
- print_constant_terse (out, jcf, \
- outer_class_info_index, CONSTANT_Class); \
- } \
- } \
- if (flag_print_class_info) \
- fputc ('\n', out); \
-}
-
-#define PROCESS_OTHER_ATTRIBUTE(JCF, INDEX, LENGTH) \
-{ COMMON_HANDLE_ATTRIBUTE(JCF, INDEX, LENGTH); \
- fputc ('\n', out); JCF_SKIP (JCF, LENGTH); }
-
-#define START_FINAL_ATTRIBUTES(ATTRIBUTES_COUNT) \
- if (flag_print_attributes > 0) \
- fprintf (out, "\nAttributes (count: %d):\n", attributes_count);
-
-#include "javaop.h"
-
-static void
-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, ">");
-}
-
-/* Print the access flags given by FLAGS.
- The CONTEXT is one of 'c' (class flags), 'f' (field flags),
- or 'm' (method flags). */
-
-static void
-DEFUN (print_access_flags, (stream, flags, context),
- FILE *stream AND uint16 flags AND char context)
-{
- if (flags & ACC_PUBLIC) fprintf (stream, " public");
- if (flags & ACC_PRIVATE) fprintf (stream, " private");
- if (flags & ACC_PROTECTED) fprintf (stream, " protected");
- if (flags & ACC_ABSTRACT) fprintf (stream, " abstract");
- if (flags & ACC_STATIC) fprintf (stream, " static");
- if (flags & ACC_FINAL) fprintf (stream, " final");
- if (flags & ACC_TRANSIENT) fprintf (stream, " transient");
- if (flags & ACC_VOLATILE) fprintf (stream, " volatile");
- if (flags & ACC_NATIVE) fprintf (stream, " native");
- if (flags & ACC_SYNCHRONIZED)
- {
- if (context == 'c')
- fprintf (stream, " super");
- else
- fprintf (stream, " synchronized");
- }
- if (flags & ACC_INTERFACE) fprintf (stream, " interface");
- if (flags & ACC_STRICT) fprintf (stream, " strictfp");
-}
-
-
-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. */
-
-static void
-DEFUN(print_constant_terse, (out, jcf, index, expected),
- FILE *out AND JCF *jcf AND int index AND int expected)
-{
- if (! CPOOL_INDEX_IN_RANGE (&jcf->cpool, index))
- fprintf (out, "<constant pool index %d not in range>", index);
- else if (JPOOL_TAG (jcf, index) != expected)
- {
- fprintf (out, "<Unexpected constant type ");
- print_constant (out, jcf, index, 1);
- fprintf (out, ">");
- }
- else
- print_constant (out, jcf, index, 0);
-}
-
-/* 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;
- const char *str;
- int kind = JPOOL_TAG (jcf, index);
- switch (kind)
- {
- case CONSTANT_Class:
- n = JPOOL_USHORT1 (jcf, index);
- if (verbosity > 0)
- {
- if (verbosity > 1)
- fprintf (out, "Class name: %d=", n);
- else
- fprintf (out, "Class ");
- }
- if (! CPOOL_INDEX_IN_RANGE (&jcf->cpool, n))
- fprintf (out, "<out of range>");
- else if (verbosity < 2 && JPOOL_TAG (jcf, n) == CONSTANT_Utf8)
- {
- int len = JPOOL_UTF_LENGTH (jcf, n);
- jcf_print_utf8_replace (out, JPOOL_UTF_DATA(jcf,n), len, '/', '.');
- }
- else
- print_constant_terse (out, jcf, n, CONSTANT_Utf8);
- break;
- case CONSTANT_Fieldref:
- str = "Field"; goto field_or_method;
- case CONSTANT_Methodref:
- str = "Method"; goto field_or_method;
- case CONSTANT_InterfaceMethodref:
- str = "InterfaceMethod"; goto field_or_method;
- field_or_method:
- {
- uint16 tclass = JPOOL_USHORT1 (jcf, index);
- uint16 name_and_type = JPOOL_USHORT2 (jcf, index);
- if (verbosity == 2)
- fprintf (out, "%sref class: %d=", str, tclass);
- else if (verbosity > 0)
- fprintf (out, "%s ", str);
- print_constant_terse (out, jcf, tclass, CONSTANT_Class);
- if (verbosity < 2)
- fprintf (out, ".");
- else
- fprintf (out, " name_and_type: %d=<", name_and_type);
- print_constant_terse (out, jcf, name_and_type, CONSTANT_NameAndType);
- if (verbosity == 2)
- fputc ('>', out);
- }
- break;
- case CONSTANT_String:
- j = JPOOL_USHORT1 (jcf, index);
- if (verbosity > 0)
- {
- if (verbosity > 1)
- fprintf (out, "String %d=", j);
- else
- fprintf (out, "String ");
- }
- print_constant_terse (out, jcf, j, CONSTANT_Utf8);
- break;
- case CONSTANT_Integer:
- if (verbosity > 0)
- fprintf (out, "Integer ");
- num = JPOOL_INT (jcf, index);
- goto integer;
- case CONSTANT_Long:
- if (verbosity > 0)
- fprintf (out, "Long ");
- num = JPOOL_LONG (jcf, index);
- goto integer;
- integer:
- {
- char buffer[25];
- format_int (buffer, num, 10);
- fprintf (out, "%s", buffer);
- if (verbosity > 1)
- {
- format_uint (buffer, (uint64)num, 16);
- fprintf (out, "=0x%s", buffer);
- }
- }
- break;
- case CONSTANT_Float:
- {
- jfloat fnum = JPOOL_FLOAT (jcf, index);
- fprintf (out, "%s%.10g", verbosity > 0 ? "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 > 0 ? "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)
- {
- if (verbosity > 1)
- fprintf (out, "NameAndType name: %d=", name);
- else
- fprintf (out, "NameAndType ");
- }
- print_name (out, jcf, name);
- if (verbosity <= 1)
- fputc (' ', out);
- else
- fprintf (out, ", signature: %d=", sig);
- print_signature (out, jcf, sig, 0);
- }
- break;
- case CONSTANT_Utf8:
- {
- register const unsigned char *str = JPOOL_UTF_DATA (jcf, index);
- int length = JPOOL_UTF_LENGTH (jcf, index);
- if (verbosity > 0)
- { /* Print as 8-bit bytes. */
- fputs ("Utf8: \"", out);
- while (--length >= 0)
- jcf_print_char (out, *str++);
- }
- else
- { /* Print as Unicode. */
- fputc ('\"', out);
- jcf_print_utf8 (out, str, length);
- }
- fputc ('\"', out);
- }
- break;
- default:
- fprintf (out, "(Unknown constant type %d)", kind);
- }
-}
-
-static 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)++)
- {
- 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
- {
- const unsigned char *str = JPOOL_UTF_DATA (jcf, signature_index);
- int length = JPOOL_UTF_LENGTH (jcf, signature_index);
- const unsigned char *limit;
- limit = str + length;
- if (str >= limit)
- fprintf (stream, "<empty signature string>");
- else
- {
- if (options & PRINT_SIGNATURE_RESULT_ONLY)
- {
- while (str < limit && *str++ != ')') ;
- }
- if (options & PRINT_SIGNATURE_ARGS_ONLY)
- {
- str++;
- fputc ('(', stream);
- while (str < limit && *str != ')')
- {
- print_signature_type (stream, &str, limit);
- if (*str != ')')
- fputs (", ", stream);
- }
- fputc (')', stream);
- }
- else
- {
- print_signature_type (stream, &str, limit);
- if (str < limit)
- {
- fprintf (stream, "<junk:");
- jcf_print_utf8 (stream, str, limit - str);
- fputc ('>', stream);
- }
- }
- }
- }
-}
-
-
-static void
-DEFUN(print_exception_table, (jcf, entries, count),
- JCF *jcf AND const unsigned char *entries AND int count)
-{
- /* Print exception table. */
- int i = count;
- if (i > 0)
- {
- const unsigned char *ptr = entries;
- fprintf (out, "Exceptions (count: %d):\n", i);
- for (; --i >= 0; ptr+= 8)
- {
- int start_pc = GET_u2 (ptr);
- int end_pc = GET_u2 (ptr+2);
- int handler_pc = GET_u2 (ptr+4);
- int catch_type = GET_u2 (ptr+6);
- fprintf (out, " start: %d, end: %d, handler: %d, type: %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);
- }
- }
-}
-
-#include "jcf-reader.c"
-
-static 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 (FATAL_EXIT_CODE);
- }
- code = verify_constant_pool (jcf);
- if (code > 0)
- {
- fprintf (stderr, "error in constant pool entry #%d\n", code);
- exit (FATAL_EXIT_CODE);
- }
- if (flag_print_constant_pool)
- print_constant_pool (jcf);
-
- jcf_parse_class (jcf);
- code = jcf_parse_fields (jcf);
- if (code != 0)
- {
- fprintf (stderr, "error while parsing fields\n");
- exit (FATAL_EXIT_CODE);
- }
- code = jcf_parse_methods (jcf);
- if (code != 0)
- {
- fprintf (stderr, "error while parsing methods\n");
- exit (FATAL_EXIT_CODE);
- }
- code = jcf_parse_final_attributes (jcf);
- if (code != 0)
- {
- fprintf (stderr, "error while parsing final attributes\n");
- exit (FATAL_EXIT_CODE);
- }
- jcf->filename = NULL;
-}
-
-\f
-
-/* This is used to mark options with no short value. */
-#define LONG_OPT(Num) ((Num) + 128)
-
-#define OPT_classpath LONG_OPT (0)
-#define OPT_CLASSPATH OPT_classpath
-#define OPT_bootclasspath LONG_OPT (1)
-#define OPT_extdirs LONG_OPT (2)
-#define OPT_HELP LONG_OPT (3)
-#define OPT_VERSION LONG_OPT (4)
-#define OPT_JAVAP LONG_OPT (5)
-
-static const struct option options[] =
-{
- { "classpath", required_argument, NULL, OPT_classpath },
- { "bootclasspath", required_argument, NULL, OPT_bootclasspath },
- { "extdirs", required_argument, NULL, OPT_extdirs },
- { "CLASSPATH", required_argument, NULL, OPT_CLASSPATH },
- { "help", no_argument, NULL, OPT_HELP },
- { "verbose", no_argument, NULL, 'v' },
- { "version", no_argument, NULL, OPT_VERSION },
- { "javap", no_argument, NULL, OPT_JAVAP },
- { "print-main", no_argument, &flag_print_main, 1 },
- { NULL, no_argument, NULL, 0 }
-};
-
-static void
-usage ()
-{
- fprintf (stderr, "Try `jcf-dump --help' for more information.\n");
- exit (1);
-}
-
-static void
-help ()
-{
- printf ("Usage: jcf-dump [OPTION]... CLASS...\n\n");
- printf ("Display contents of a class file in readable form.\n\n");
- printf (" -c Disassemble method bodies\n");
- printf (" --javap Generate output in `javap' format\n");
- printf ("\n");
- printf (" --classpath PATH Set path to find .class files\n");
- printf (" -IDIR Append directory to class path\n");
- printf (" --bootclasspath PATH Override built-in class path\n");
- printf (" --extdirs PATH Set extensions directory path\n");
- printf (" -o FILE Set output file name\n");
- printf ("\n");
- printf (" --help Print this help, then exit\n");
- printf (" --version Print version number, then exit\n");
- printf (" -v, --verbose Print extra information while running\n");
- printf ("\n");
- printf ("For bug reporting instructions, please see:\n");
- printf ("%s.\n", GCCBUGURL);
- exit (0);
-}
-
-static void
-version ()
-{
- printf ("jcf-dump (GCC) %s\n\n", version_string);
- printf ("Copyright (C) 2002 Free Software Foundation, Inc.\n");
- printf ("This is free software; see the source for copying conditions. There is NO\n");
- printf ("warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n");
- exit (0);
-}
-
-int
-DEFUN(main, (argc, argv),
- int argc AND char** argv)
-{
- JCF jcf[1];
- int argi, opt;
-
- if (argc <= 1)
- {
- fprintf (stderr, "jcf-dump: no classes specified\n");
- usage ();
- }
-
- jcf_path_init ();
-
- /* We use getopt_long_only to allow single `-' long options. For
- some of our options this is more natural. */
- while ((opt = getopt_long_only (argc, argv, "o:I:vc", options, NULL)) != -1)
- {
- switch (opt)
- {
- case 0:
- /* Already handled. */
- break;
-
- case 'o':
- output_file = optarg;
- break;
-
- case 'I':
- jcf_path_include_arg (optarg);
- break;
-
- case 'v':
- verbose++;
- break;
-
- case 'c':
- flag_disassemble_methods = 1;
- break;
-
- case OPT_classpath:
- jcf_path_classpath_arg (optarg);
- break;
-
- case OPT_bootclasspath:
- jcf_path_bootclasspath_arg (optarg);
- break;
-
- case OPT_extdirs:
- jcf_path_extdirs_arg (optarg);
- break;
-
- case OPT_HELP:
- help ();
- break;
-
- case OPT_VERSION:
- version ();
- break;
-
- case OPT_JAVAP:
- flag_javap_compatible++;
- flag_print_constant_pool = 0;
- flag_print_attributes = 0;
- break;
-
- default:
- usage ();
- }
- }
-
- if (optind == argc)
- {
- fprintf (stderr, "jcf-dump: no classes specified\n");
- usage ();
- }
-
- jcf_path_seal (verbose);
-
- if (flag_print_main)
- {
- flag_print_fields = 0;
- flag_print_methods = 0;
- flag_print_constant_pool = 0;
- flag_print_attributes = 0;
- flag_print_class_info = 0;
- }
-
- if (output_file)
- {
- out = fopen (output_file, "w");
- if (! out)
- {
- fprintf (stderr, "Cannot open '%s' for output.\n", output_file);
- return FATAL_EXIT_CODE;
- }
- }
- else
- out = stdout;
-
- if (optind >= argc)
- {
- fprintf (out, "Reading .class from <standard input>.\n");
-#if JCF_USE_STDIO
- open_class ("<stdio>", jcf, stdin, NULL);
-#else
- open_class ("<stdio>", jcf, 0, NULL);
-#endif
- process_class (jcf);
- }
- else
- {
- for (argi = optind; argi < argc; argi++)
- {
- char *arg = argv[argi];
- const char *class_filename = find_class (arg, strlen (arg), jcf, 0);
- if (class_filename == NULL)
- class_filename = find_classfile (arg, jcf, NULL);
- if (class_filename == NULL)
- {
- perror ("Could not find class");
- return FATAL_EXIT_CODE;
- }
- JCF_FILL (jcf, 4);
- if (GET_u4 (jcf->read_ptr) == ZIPMAGIC)
- {
- long compressed_size, member_size;
- int compression_method, filename_length, extra_length;
- int general_purpose_bits;
- const char *filename;
- int total_length;
- if (flag_print_class_info)
- fprintf (out, "Reading classes from archive %s.\n",
- class_filename);
- for (;;)
- {
- int skip = 0;
- jcf_filbuf_t save_filbuf = jcf->filbuf;
- long magic = JCF_readu4_le (jcf);
- if (magic == 0x02014b50 || magic == 0x06054b50)
- break; /* got to central directory */
- if (magic != 0x04034b50) /* ZIPMAGIC (little-endian) */
- {
- fprintf (stderr, "bad format of .zip/.jar archive\n");
- return FATAL_EXIT_CODE;
- }
- JCF_FILL (jcf, 26);
- JCF_SKIP (jcf, 2);
- 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);
- }
- }
-
- return SUCCESS_EXIT_CODE;
-}
-
-\f
-
-static void
-DEFUN(disassemble_method, (jcf, byte_ops, len),
- JCF* jcf AND const unsigned char *byte_ops AND int len)
-{
-#undef AND /* Causes problems with opcodes for iand and land. */
-#undef PTR
- int PC;
- int i;
- int saw_wide = 0;
- if (flag_disassemble_methods == 0)
- return;
-#define BCODE byte_ops
- for (PC = 0; PC < len;)
- {
- int oldpc = PC;
- int saw_index;
- jint INT_temp;
- switch (byte_ops[PC++])
- {
-
-/* This is the actual code emitted for each of opcodes in javaops.def.
- The actual opcode-specific stuff is handled by the OPKIND macro.
- I.e. for an opcode whose OPKIND is BINOP, the BINOP will be called.
- Those macros are 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, i = (OPERAND_VALUE); \
- if (oldpc+1 == PC) /* nothing */; \
- else if (saw_index) fprintf (out, " "), print_constant_ref (out, jcf, i); \
- else fprintf (out, " %d", i);
-
-/* Print out operand (a local variable index) for LOAD opcodes.
- These all push local variable onto the opcode stack. */
-#define LOAD(OPERAND_TYPE, OPERAND_VALUE) \
- INT_temp = saw_wide ? IMMEDIATE_u2 : (OPERAND_VALUE); goto load_store;
-
-/* Handle STORE opcodes same as LOAD opcodes.
- These all store a value from the opcode stack in a local variable. */
-#define STORE LOAD
-
-/* Handle more kind of opcodes. */
-#define STACK(OPERAND_TYPE, OPERAND_VALUE) /* nothing */
-#define UNOP(OPERAND_TYPE, OPERAND_VALUE) /* nothing */
-#define BINOP(OPERAND_TYPE, OPERAND_VALUE) /* nothing */
-#define CONVERT(OPERAND_TYPE, OPERAND_VALUE) /* nothing */
-#define CONVERT2(OPERAND_TYPE, OPERAND_VALUE) /* nothing */
-#define RETURN(OPERAND_TYPE, OPERAND_VALUE) /* nothing */
-#define UNKNOWN(OPERAND_TYPE, OPERAND_VALUE) /* nothing */
-
-/* Handle putfield and getfield opcodes, with static versions. */
-#define FIELD(MAYBE_STATIC, PUT_OR_GET) \
- fputc (' ', out); print_constant_ref (out, jcf, IMMEDIATE_u2)
-
-/* Print operand for invoke opcodes. */
-#define INVOKE(OPERAND_TYPE, OPERAND_VALUE) \
- fputc (' ', out); print_constant_ref (out, jcf, IMMEDIATE_u2);\
- if (OPERAND_VALUE) /* for invokeinterface */ \
- { int nargs = IMMEDIATE_u1; PC++; \
- fprintf (out, " nargs:%d", nargs); }
-
-#define OBJECT(OPERAND_TYPE, OPERAND_VALUE) \
- fputc (' ', out); print_constant_ref (out, jcf, IMMEDIATE_u2);
-
-#define ARRAY(OPERAND_TYPE, SUBOP) \
- ARRAY_##SUBOP(OPERAND_TYPE)
-/* Handle sub-categories of ARRAY opcodes. */
-#define ARRAY_LOAD(TYPE) /* nothing */
-#define ARRAY_STORE(TYPE) /* nothing */
-#define ARRAY_LENGTH(TYPE) /* nothing */
-#define ARRAY_NEW(TYPE) ARRAY_NEW_##TYPE
-#define ARRAY_NEW_NUM \
- INT_temp = IMMEDIATE_u1; \
- { switch ((int) INT_temp) { \
- case 4: fputs (" boolean", out); break; \
- case 5: fputs (" char", out); break; \
- case 6: fputs (" float", out); break; \
- case 7: fputs (" double", out); break; \
- case 8: fputs (" byte", out); break; \
- case 9: fputs (" short", out); break; \
- case 10: fputs (" int", out); break; \
- case 11: fputs (" long", out); break; \
- default: fprintf (out, " <unknown type code %ld>", (long)INT_temp); break;\
- } }
-
-#define ARRAY_NEW_PTR \
- fputc (' ', out); print_constant_ref (out, jcf, IMMEDIATE_u2);
-
-#define ARRAY_NEW_MULTI \
- fputc (' ', out); print_constant_ref (out, jcf, IMMEDIATE_u2); \
- fprintf (out, " %d", IMMEDIATE_u1); /* number of dimensions */
-
-#define TEST(OPERAND_TYPE, OPERAND_VALUE) \
- fprintf (out, " %d", oldpc + IMMEDIATE_s2)
-
-#define BRANCH(OPERAND_TYPE, OPERAND_VALUE) \
- saw_index = 0, INT_temp = (OPERAND_VALUE); \
- fprintf (out, " %ld", (long) (saw_index ? INT_temp : oldpc + INT_temp))
-
-#define JSR(OPERAND_TYPE, OPERAND_VALUE) \
- saw_index = 0, INT_temp = (OPERAND_VALUE); \
- fprintf (out, " %ld", (long) (saw_index ? INT_temp : oldpc + INT_temp))
-
-#undef RET /* Defined by config/i386/i386.h */
-#define RET(OPERAND_TYPE, OPERAND_VALUE) \
- INT_temp = saw_wide ? IMMEDIATE_u2 : (OPERAND_VALUE); \
- saw_wide = 0; \
- fprintf (out, " %ld", (long) INT_temp);
-
-#define SWITCH(OPERAND_TYPE, TABLE_OR_LOOKUP) \
- PC = (PC + 3) / 4 * 4; TABLE_OR_LOOKUP##_SWITCH
-
-#define LOOKUP_SWITCH \
- { jint default_offset = IMMEDIATE_s4; jint npairs = IMMEDIATE_s4; \
- fprintf (out, " npairs=%ld, default=%ld", (long) npairs, (long) default_offset+oldpc); \
- while (--npairs >= 0) { \
- jint match = IMMEDIATE_s4; jint offset = IMMEDIATE_s4; \
- fprintf (out, "\n%10ld: %ld", (long)match, (long)(offset+oldpc)); } \
- }
-
-#define TABLE_SWITCH \
- { jint default_offset = IMMEDIATE_s4; \
- jint low = IMMEDIATE_s4; jint high = IMMEDIATE_s4; \
- fprintf (out, " low=%ld, high=%ld, default=%ld", \
- (long) low, (long) high, (long) default_offset+oldpc); \
- for (; low <= high; low++) { \
- jint offset = IMMEDIATE_s4; \
- fprintf (out, "\n%10ld: %ld", (long)low, (long)(offset+oldpc)); } \
- }
-
-#define SPECIAL(OPERAND_TYPE, OPERAND_VALUE) \
- SPECIAL_##OPERAND_VALUE(OPERAND_TYPE)
-
-#define SPECIAL_IINC(OPERAND_TYPE) \
- i = saw_wide ? IMMEDIATE_u2 : IMMEDIATE_u1; \
- fprintf (out, " %d", i); \
- i = saw_wide ? IMMEDIATE_s2 : IMMEDIATE_s1; \
- saw_wide = 0; \
- fprintf (out, " %d", i)
-
-#define SPECIAL_WIDE(OPERAND_TYPE) \
- saw_wide = 1;
-
-#define SPECIAL_EXIT(OPERAND_TYPE) /* nothing */
-#define SPECIAL_ENTER(OPERAND_TYPE) /* nothing */
-#define SPECIAL_BREAK(OPERAND_TYPE) /* nothing */
-#define SPECIAL_THROW(OPERAND_TYPE) /* nothing */
-
-#define IMPL(OPERAND_TYPE, OPERAND_VALUE) \
- fprintf (out, " %d", IMMEDIATE_u##OPERAND_VALUE)
-
-#define COND(OPERAND_TYPE, OPERAND_VALUE) \
- TEST(OPERAND_TYPE, OPERAND_VALUE)
-
-#include "javaop.def"
-
- load_store:
- if (oldpc+1 == PC) /* nothing - local index implied by opcode */;
- else
- {
- saw_wide = 0;
- fprintf (out, " %ld", (long) INT_temp);
- }
- fputc ('\n', out);
- break;
-
- default:
- fprintf (out, "%3d: unknown(%3d)\n", oldpc, byte_ops[PC]);
- }
- }
-}
projects / msp430-gcc.git / blobdiff