1 /* Parser for Java(TM) .class files.
2 Copyright (C) 1996, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
3 2005, 2006, 2007 Free Software Foundation, Inc.
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3, or (at your option)
12 GCC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING3. If not see
19 <http://www.gnu.org/licenses/>.
21 Java and all Java-based marks are trademarks or registered trademarks
22 of Sun Microsystems, Inc. in the United States and other countries.
23 The Free Software Foundation is independent of Sun Microsystems, Inc. */
25 /* Written by Per Bothner <bothner@cygnus.com> */
29 #include "coretypes.h"
35 #include "java-except.h"
38 #include "java-tree.h"
52 #ifdef HAVE_LANGINFO_CODESET
56 /* A CONSTANT_Utf8 element is converted to an IDENTIFIER_NODE at parse time. */
57 #define JPOOL_UTF(JCF, INDEX) CPOOL_UTF(&(JCF)->cpool, INDEX)
58 #define JPOOL_UTF_LENGTH(JCF, INDEX) IDENTIFIER_LENGTH (JPOOL_UTF (JCF, INDEX))
59 #define JPOOL_UTF_DATA(JCF, INDEX) \
60 ((const unsigned char *) IDENTIFIER_POINTER (JPOOL_UTF (JCF, INDEX)))
61 #define HANDLE_CONSTANT_Utf8(JCF, INDEX, LENGTH) \
63 unsigned char save; unsigned char *text; \
64 JCF_FILL (JCF, (LENGTH)+1); /* Make sure we read 1 byte beyond string. */ \
65 text = (JCF)->read_ptr; \
66 save = text[LENGTH]; \
68 (JCF)->cpool.data[INDEX].t = get_identifier ((const char *) text); \
69 text[LENGTH] = save; \
70 JCF_SKIP (JCF, LENGTH); } while (0)
74 extern struct obstack temporary_obstack
;
76 static GTY(()) tree parse_roots
[3];
78 /* The FIELD_DECL for the current field. */
79 #define current_field parse_roots[0]
81 /* The METHOD_DECL for the current method. */
82 #define current_method parse_roots[1]
84 /* A list of TRANSLATION_UNIT_DECLs for the files to be compiled. */
85 #define current_file_list parse_roots[2]
87 /* Line 0 in current file, if compiling from bytecode. */
88 static location_t file_start_location
;
90 /* The Java archive that provides main_class; the main input file. */
91 static GTY(()) struct JCF
* main_jcf
;
93 /* The number of source files passed to us by -fsource-filename and an
94 array of pointers to each name. Used by find_sourcefile(). */
95 static int num_files
= 0;
96 static char **filenames
;
98 static struct ZipFile
*localToFile
;
100 /* A map of byte offsets in the reflection data that are fields which
102 bitmap field_offsets
;
103 bitmap_obstack bit_obstack
;
105 /* Declarations of some functions used here. */
106 static void handle_innerclass_attribute (int count
, JCF
*, int len
);
107 static tree
give_name_to_class (JCF
*jcf
, int index
);
108 static char *compute_class_name (struct ZipDirectory
*zdir
);
109 static int classify_zip_file (struct ZipDirectory
*zdir
);
110 static void parse_zip_file_entries (void);
111 static void process_zip_dir (FILE *);
112 static void parse_class_file (void);
113 static void handle_deprecated (void);
114 static void set_source_filename (JCF
*, int);
115 static void jcf_parse (struct JCF
*);
116 static void load_inner_classes (tree
);
117 static void handle_annotation (JCF
*jcf
, int level
);
118 static void java_layout_seen_class_methods (void);
120 /* Handle "Deprecated" attribute. */
122 handle_deprecated (void)
124 if (current_field
!= NULL_TREE
)
125 FIELD_DEPRECATED (current_field
) = 1;
126 else if (current_method
!= NULL_TREE
)
127 METHOD_DEPRECATED (current_method
) = 1;
128 else if (current_class
!= NULL_TREE
)
129 CLASS_DEPRECATED (TYPE_NAME (current_class
)) = 1;
132 /* Shouldn't happen. */
139 /* Reverse a string. */
141 reverse (const char *s
)
147 int len
= strlen (s
);
148 char *d
= xmalloc (len
+ 1);
153 for (dp
= &d
[0], sp
= &s
[len
-1]; sp
>= s
; dp
++, sp
--)
160 /* Compare two strings for qsort(). */
162 cmpstringp (const void *p1
, const void *p2
)
164 /* The arguments to this function are "pointers to
165 pointers to char", but strcmp() arguments are "pointers
166 to char", hence the following cast plus dereference */
168 return strcmp(*(const char *const*) p1
, *(const char *const*) p2
);
171 /* Create an array of strings, one for each source file that we've
172 seen. fsource_filename can either be the name of a single .java
173 file or a file that contains a list of filenames separated by
176 java_read_sourcefilenames (const char *fsource_filename
)
180 && strlen (fsource_filename
) > strlen (".java")
181 && strcmp ((fsource_filename
182 + strlen (fsource_filename
)
186 /* fsource_filename isn't a .java file but a list of filenames
187 separated by newlines */
188 FILE *finput
= fopen (fsource_filename
, "r");
190 int longest_line
= 0;
194 /* Find out how many files there are, and how long the filenames are. */
195 while (! feof (finput
))
197 int ch
= getc (finput
);
201 if (len
> longest_line
)
213 /* Read the filenames. Put a pointer to each filename into the
216 char *linebuf
= alloca (longest_line
+ 1);
220 filenames
= xmalloc (num_files
* sizeof (char*));
225 int ch
= getc (finput
);
230 linebuf
[charpos
] = 0;
231 gcc_assert (i
< num_files
);
232 /* ??? Perhaps we should use lrealpath() here. Doing
233 so would tidy up things like /../ but the rest of
234 gcc seems to assume relative pathnames, not
235 absolute pathnames. */
236 /* realname = lrealpath (linebuf); */
237 filenames
[i
++] = reverse (linebuf
);
241 gcc_assert (charpos
< longest_line
);
242 linebuf
[charpos
++] = ch
;
246 qsort (filenames
, num_files
, sizeof (char *), cmpstringp
);
252 filenames
= xmalloc (sizeof (char*));
253 filenames
[0] = reverse (fsource_filename
);
258 /* Given a relative pathname such as foo/bar.java, attempt to find a
259 longer pathname with the same suffix.
261 This is a best guess heuristic; with some weird class hierarchies we
262 may fail to pick the correct source file. For example, if we have
263 the filenames foo/bar.java and also foo/foo/bar.java, we do not
264 have enough information to know which one is the right match for
268 find_sourcefile (const char *name
)
270 int i
= 0, j
= num_files
-1;
275 char *revname
= reverse (name
);
280 int cmp
= strncmp (revname
, filenames
[k
], strlen (revname
));
283 /* OK, so we found one. But is it a unique match? */
285 && strncmp (revname
, filenames
[k
-1], strlen (revname
)) == 0)
287 && (strncmp (revname
, filenames
[k
+1], strlen (revname
))
291 found
= filenames
[k
];
304 if (found
&& strlen (found
) > strlen (name
))
305 return reverse (found
);
312 /* Handle "SourceFile" attribute. */
315 set_source_filename (JCF
*jcf
, int index
)
317 tree sfname_id
= get_name_constant (jcf
, index
);
318 const char *sfname
= IDENTIFIER_POINTER (sfname_id
);
319 const char *old_filename
= input_filename
;
320 int new_len
= IDENTIFIER_LENGTH (sfname_id
);
321 if (old_filename
!= NULL
)
323 int old_len
= strlen (old_filename
);
324 /* Use the current input_filename (derived from the class name)
325 if it has a directory prefix, but otherwise matches sfname. */
326 if (old_len
> new_len
327 && strcmp (sfname
, old_filename
+ old_len
- new_len
) == 0
328 && (old_filename
[old_len
- new_len
- 1] == '/'
329 || old_filename
[old_len
- new_len
- 1] == '\\'))
331 #ifndef USE_MAPPED_LOCATION
332 input_filename
= find_sourcefile (input_filename
);
333 DECL_SOURCE_LOCATION (TYPE_NAME (current_class
)) = input_location
;
334 file_start_location
= input_location
;
339 if (strchr (sfname
, '/') == NULL
&& strchr (sfname
, '\\') == NULL
)
341 const char *class_name
342 = IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (current_class
)));
343 char *dot
= strrchr (class_name
, '.');
346 /* Length of prefix, not counting final dot. */
347 int i
= dot
- class_name
;
348 /* Concatenate current package prefix with new sfname. */
349 char *buf
= XNEWVEC (char, i
+ new_len
+ 2); /* Space for '.' and '\0'. */
350 strcpy (buf
+ i
+ 1, sfname
);
351 /* Copy package from class_name, replacing '.' by DIR_SEPARATOR.
352 Note we start at the end with the final package dot. */
355 char c
= class_name
[i
];
360 sfname_id
= get_identifier (buf
);
362 sfname
= IDENTIFIER_POINTER (sfname_id
);
366 sfname
= find_sourcefile (sfname
);
367 #ifdef USE_MAPPED_LOCATION
368 line_table
->maps
[line_table
->used
-1].to_file
= sfname
;
370 input_filename
= sfname
;
371 DECL_SOURCE_LOCATION (TYPE_NAME (current_class
)) = input_location
;
372 file_start_location
= input_location
;
374 if (current_class
== main_class
) main_input_filename
= sfname
;
380 /* Annotation handling.
382 The technique we use here is to copy the annotation data directly
383 from the input class file into the output file. We don't decode the
384 data at all, merely rewriting constant indexes whenever we come
385 across them: this is necessary because the constant pool in the
386 output file isn't the same as the constant pool in in the input.
388 The main advantage of this technique is that the resulting
389 annotation data is pointer-free, so it doesn't have to be relocated
390 at startup time. As a consequence of this, annotations have no
391 performance impact unless they are used. Also, this representation
395 /* Expand TYPE_REFLECTION_DATA by DELTA bytes. Return the address of
396 the start of the newly allocated region. */
398 static unsigned char*
399 annotation_grow (int delta
)
401 unsigned char **data
= &TYPE_REFLECTION_DATA (current_class
);
402 long *datasize
= &TYPE_REFLECTION_DATASIZE (current_class
);
403 long len
= *datasize
;
407 *data
= xmalloc (delta
);
411 int newlen
= *datasize
+ delta
;
412 if (floor_log2 (newlen
) != floor_log2 (*datasize
))
413 *data
= xrealloc (*data
, 2 << (floor_log2 (newlen
)));
419 /* annotation_rewrite_TYPE. Rewrite various int types at p. Use Java
420 byte order (i.e. big endian.) */
423 annotation_rewrite_byte (unsigned int n
, unsigned char *p
)
429 annotation_rewrite_short (unsigned int n
, unsigned char *p
)
436 annotation_rewrite_int (unsigned int n
, unsigned char *p
)
444 /* Read a 16-bit unsigned int in Java byte order (i.e. big
448 annotation_read_short (unsigned char *p
)
451 tmp
= (tmp
<< 8) | p
[1];
455 /* annotation_write_TYPE. Rewrite various int types, appending them
456 to TYPE_REFLECTION_DATA. Use Java byte order (i.e. big
460 annotation_write_byte (unsigned int n
)
462 annotation_rewrite_byte (n
, annotation_grow (1));
466 annotation_write_short (unsigned int n
)
468 annotation_rewrite_short (n
, annotation_grow (2));
472 annotation_write_int (unsigned int n
)
474 annotation_rewrite_int (n
, annotation_grow (4));
477 /* Create a 64-bit constant in the constant pool.
479 This is used for both integer and floating-point types. As a
480 consequence, it will not work if the target floating-point format
481 is anything other than IEEE-754. While this is arguably a bug, the
482 runtime library makes exactly the same assumption and it's unlikely
483 that Java will ever run on a non-IEEE machine. */
486 handle_long_constant (JCF
*jcf
, CPool
*cpool
, enum cpool_tag kind
,
487 int index
, bool big_endian
)
489 /* If we're on a 64-bit platform we can fit a long or double
490 into the same space as a jword. */
491 if (POINTER_SIZE
>= 64)
492 index
= find_constant1 (cpool
, kind
, JPOOL_LONG (jcf
, index
));
494 /* In a compiled program the constant pool is in native word
495 order. How weird is that??? */
497 index
= find_constant2 (cpool
, kind
,
498 JPOOL_INT (jcf
, index
),
499 JPOOL_INT (jcf
, index
+1));
501 index
= find_constant2 (cpool
, kind
,
502 JPOOL_INT (jcf
, index
+1),
503 JPOOL_INT (jcf
, index
));
508 /* Given a class file and an index into its constant pool, create an
509 entry in the outgoing constant pool for the same item. */
512 handle_constant (JCF
*jcf
, int index
, enum cpool_tag purpose
)
515 CPool
*cpool
= cpool_for_class (output_class
);
520 if (! CPOOL_INDEX_IN_RANGE (&jcf
->cpool
, index
))
521 error ("<constant pool index %d not in range>", index
);
523 kind
= JPOOL_TAG (jcf
, index
);
525 if ((kind
& ~CONSTANT_ResolvedFlag
) != purpose
)
527 if (purpose
== CONSTANT_Class
528 && kind
== CONSTANT_Utf8
)
531 error ("<constant pool index %d unexpected type", index
);
537 case CONSTANT_ResolvedClass
:
539 /* For some reason I know not the what of, class names in
540 annotations are UTF-8 strings in the constant pool but
541 class names in EnclosingMethod attributes are real class
542 references. Set CONSTANT_LazyFlag here so that the VM
543 doesn't attempt to resolve them at class initialization
545 tree resolved_class
, class_name
;
546 resolved_class
= get_class_constant (jcf
, index
);
547 class_name
= build_internal_class_name (resolved_class
);
548 index
= alloc_name_constant (CONSTANT_Class
| CONSTANT_LazyFlag
,
550 (IDENTIFIER_POINTER(class_name
),
551 IDENTIFIER_LENGTH(class_name
))));
556 tree utf8
= get_constant (jcf
, index
);
557 if (purpose
== CONSTANT_Class
)
558 /* Create a constant pool entry for a type signature. This
559 one has '.' rather than '/' because it isn't going into a
560 class file, it's going into a compiled object.
562 This has to match the logic in
563 _Jv_ClassReader::prepare_pool_entry(). */
564 utf8
= unmangle_classname (IDENTIFIER_POINTER(utf8
),
565 IDENTIFIER_LENGTH(utf8
));
566 index
= alloc_name_constant (kind
, utf8
);
571 index
= handle_long_constant (jcf
, cpool
, kind
, index
,
575 case CONSTANT_Double
:
576 index
= handle_long_constant (jcf
, cpool
, kind
, index
,
577 FLOAT_WORDS_BIG_ENDIAN
);
581 case CONSTANT_Integer
:
582 index
= find_constant1 (cpool
, kind
, JPOOL_INT (jcf
, index
));
585 case CONSTANT_NameAndType
:
587 uint16 name
= JPOOL_USHORT1 (jcf
, index
);
588 uint16 sig
= JPOOL_USHORT2 (jcf
, index
);
589 uint32 name_index
= handle_constant (jcf
, name
, CONSTANT_Utf8
);
590 uint32 sig_index
= handle_constant (jcf
, sig
, CONSTANT_Class
);
591 jword new_index
= (name_index
<< 16) | sig_index
;
592 index
= find_constant1 (cpool
, kind
, new_index
);
603 /* Read an element_value structure from an annotation in JCF. Return
604 the constant pool index for the resulting constant pool entry. */
607 handle_element_value (JCF
*jcf
, int level
)
609 uint8 tag
= JCF_readu (jcf
);
612 annotation_write_byte (tag
);
621 uint16 cindex
= JCF_readu2 (jcf
);
622 index
= handle_constant (jcf
, cindex
,
624 annotation_write_short (index
);
629 uint16 cindex
= JCF_readu2 (jcf
);
630 index
= handle_constant (jcf
, cindex
,
632 annotation_write_short (index
);
637 uint16 cindex
= JCF_readu2 (jcf
);
638 index
= handle_constant (jcf
, cindex
,
640 annotation_write_short (index
);
645 uint16 cindex
= JCF_readu2 (jcf
);
646 index
= handle_constant (jcf
, cindex
,
648 annotation_write_short (index
);
653 uint16 cindex
= JCF_readu2 (jcf
);
654 /* Despite what the JVM spec says, compilers generate a Utf8
655 constant here, not a String. */
656 index
= handle_constant (jcf
, cindex
,
658 annotation_write_short (index
);
664 uint16 type_name_index
= JCF_readu2 (jcf
);
665 uint16 const_name_index
= JCF_readu2 (jcf
);
666 index
= handle_constant (jcf
, type_name_index
,
668 annotation_write_short (index
);
669 index
= handle_constant (jcf
, const_name_index
,
671 annotation_write_short (index
);
676 uint16 class_info_index
= JCF_readu2 (jcf
);
677 index
= handle_constant (jcf
, class_info_index
,
679 annotation_write_short (index
);
684 handle_annotation (jcf
, level
+ 1);
689 uint16 n_array_elts
= JCF_readu2 (jcf
);
690 annotation_write_short (n_array_elts
);
691 while (n_array_elts
--)
692 handle_element_value (jcf
, level
+ 1);
702 /* Read an annotation structure from JCF. Write it to the
703 reflection_data field of the outgoing class. */
706 handle_annotation (JCF
*jcf
, int level
)
708 uint16 type_index
= JCF_readu2 (jcf
);
709 uint16 npairs
= JCF_readu2 (jcf
);
710 int index
= handle_constant (jcf
, type_index
,
712 annotation_write_short (index
);
713 annotation_write_short (npairs
);
716 uint16 name_index
= JCF_readu2 (jcf
);
717 index
= handle_constant (jcf
, name_index
,
719 annotation_write_short (index
);
720 handle_element_value (jcf
, level
+ 2);
724 /* Read an annotation count from JCF, and write the following
725 annotations to the reflection_data field of the outgoing class. */
728 handle_annotations (JCF
*jcf
, int level
)
730 uint16 num
= JCF_readu2 (jcf
);
731 annotation_write_short (num
);
733 handle_annotation (jcf
, level
);
736 /* As handle_annotations(), but perform a sanity check that we write
737 the same number of bytes that we were expecting. */
740 handle_annotation_attribute (int ATTRIBUTE_UNUSED index
, JCF
*jcf
,
743 long old_datasize
= TYPE_REFLECTION_DATASIZE (current_class
);
745 handle_annotations (jcf
, 0);
747 gcc_assert (old_datasize
+ length
748 == TYPE_REFLECTION_DATASIZE (current_class
));
751 /* gcj permutes its fields array after generating annotation_data, so
752 we have to fixup field indexes for fields that have moved. Given
753 ARG, a VEC_int, fixup the field indexes in the reflection_data of
754 the outgoing class. We use field_offsets to tell us where the
758 rewrite_reflection_indexes (void *arg
)
762 VEC(int, heap
) *map
= arg
;
763 unsigned char *data
= TYPE_REFLECTION_DATA (current_class
);
767 EXECUTE_IF_SET_IN_BITMAP (field_offsets
, 0, offset
, bi
)
769 uint16 index
= annotation_read_short (data
+ offset
);
770 annotation_rewrite_short
771 (VEC_index (int, map
, index
), data
+ offset
);
776 /* Read the RuntimeVisibleAnnotations from JCF and write them to the
777 reflection_data of the outgoing class. */
780 handle_member_annotations (int member_index
, JCF
*jcf
,
781 const unsigned char *name ATTRIBUTE_UNUSED
,
782 long len
, jv_attr_type member_type
)
784 int new_len
= len
+ 1;
785 annotation_write_byte (member_type
);
786 if (member_type
!= JV_CLASS_ATTR
)
788 annotation_write_int (new_len
);
789 annotation_write_byte (JV_ANNOTATIONS_KIND
);
790 if (member_type
== JV_FIELD_ATTR
)
791 bitmap_set_bit (field_offsets
, TYPE_REFLECTION_DATASIZE (current_class
));
792 if (member_type
!= JV_CLASS_ATTR
)
793 annotation_write_short (member_index
);
794 handle_annotation_attribute (member_index
, jcf
, len
);
797 /* Read the RuntimeVisibleParameterAnnotations from JCF and write them
798 to the reflection_data of the outgoing class. */
801 handle_parameter_annotations (int member_index
, JCF
*jcf
,
802 const unsigned char *name ATTRIBUTE_UNUSED
,
803 long len
, jv_attr_type member_type
)
805 int new_len
= len
+ 1;
807 annotation_write_byte (member_type
);
808 if (member_type
!= JV_CLASS_ATTR
)
810 annotation_write_int (new_len
);
811 annotation_write_byte (JV_PARAMETER_ANNOTATIONS_KIND
);
812 if (member_type
!= JV_CLASS_ATTR
)
813 annotation_write_short (member_index
);
814 num
= JCF_readu (jcf
);
815 annotation_write_byte (num
);
817 handle_annotations (jcf
, 0);
821 /* Read the AnnotationDefault data from JCF and write them to the
822 reflection_data of the outgoing class. */
825 handle_default_annotation (int member_index
, JCF
*jcf
,
826 const unsigned char *name ATTRIBUTE_UNUSED
,
827 long len
, jv_attr_type member_type
)
829 int new_len
= len
+ 1;
830 annotation_write_byte (member_type
);
831 if (member_type
!= JV_CLASS_ATTR
)
833 annotation_write_int (new_len
);
834 annotation_write_byte (JV_ANNOTATION_DEFAULT_KIND
);
835 if (member_type
!= JV_CLASS_ATTR
)
836 annotation_write_short (member_index
);
837 handle_element_value (jcf
, 0);
840 /* As above, for the EnclosingMethod attribute. */
843 handle_enclosingmethod_attribute (int member_index
, JCF
*jcf
,
844 const unsigned char *name ATTRIBUTE_UNUSED
,
845 long len
, jv_attr_type member_type
)
847 int new_len
= len
+ 1;
849 annotation_write_byte (member_type
);
850 if (member_type
!= JV_CLASS_ATTR
)
852 annotation_write_int (new_len
);
853 annotation_write_byte (JV_ENCLOSING_METHOD_KIND
);
854 if (member_type
!= JV_CLASS_ATTR
)
855 annotation_write_short (member_index
);
857 index
= JCF_readu2 (jcf
);
858 index
= handle_constant (jcf
, index
, CONSTANT_Class
);
859 annotation_write_short (index
);
861 index
= JCF_readu2 (jcf
);
862 index
= handle_constant (jcf
, index
, CONSTANT_NameAndType
);
863 annotation_write_short (index
);
866 /* As above, for the Signature attribute. */
869 handle_signature_attribute (int member_index
, JCF
*jcf
,
870 const unsigned char *name ATTRIBUTE_UNUSED
,
871 long len
, jv_attr_type member_type
)
873 int new_len
= len
+ 1;
875 annotation_write_byte (member_type
);
876 if (member_type
!= JV_CLASS_ATTR
)
878 annotation_write_int (new_len
);
879 annotation_write_byte (JV_SIGNATURE_KIND
);
880 if (member_type
!= JV_CLASS_ATTR
)
881 annotation_write_short (member_index
);
883 index
= JCF_readu2 (jcf
);
884 index
= handle_constant (jcf
, index
, CONSTANT_Utf8
);
885 annotation_write_short (index
);
890 #define HANDLE_SOURCEFILE(INDEX) set_source_filename (jcf, INDEX)
892 #define HANDLE_CLASS_INFO(ACCESS_FLAGS, THIS, SUPER, INTERFACES_COUNT) \
893 { tree super_class = SUPER==0 ? NULL_TREE : get_class_constant (jcf, SUPER); \
894 output_class = current_class = give_name_to_class (jcf, THIS); \
895 set_super_info (ACCESS_FLAGS, current_class, super_class, INTERFACES_COUNT);}
897 #define HANDLE_CLASS_INTERFACE(INDEX) \
898 add_interface (current_class, get_class_constant (jcf, INDEX))
900 #define HANDLE_START_FIELD(ACCESS_FLAGS, NAME, SIGNATURE, ATTRIBUTE_COUNT) \
901 { int sig_index = SIGNATURE; \
902 current_field = add_field (current_class, get_name_constant (jcf, NAME), \
903 parse_signature (jcf, sig_index), ACCESS_FLAGS); \
904 set_java_signature (TREE_TYPE (current_field), JPOOL_UTF (jcf, sig_index)); \
905 if ((ACCESS_FLAGS) & ACC_FINAL) \
906 MAYBE_CREATE_VAR_LANG_DECL_SPECIFIC (current_field); \
909 #define HANDLE_END_FIELDS() \
910 (current_field = NULL_TREE)
912 #define HANDLE_CONSTANTVALUE(INDEX) \
913 { tree constant; int index = INDEX; \
914 if (JPOOL_TAG (jcf, index) == CONSTANT_String) { \
915 tree name = get_name_constant (jcf, JPOOL_USHORT1 (jcf, index)); \
916 constant = build_utf8_ref (name); \
919 constant = get_constant (jcf, index); \
920 set_constant_value (current_field, constant); }
922 #define HANDLE_METHOD(ACCESS_FLAGS, NAME, SIGNATURE, ATTRIBUTE_COUNT) \
923 (current_method = add_method (current_class, ACCESS_FLAGS, \
924 get_name_constant (jcf, NAME), \
925 get_name_constant (jcf, SIGNATURE)), \
926 DECL_LOCALVARIABLES_OFFSET (current_method) = 0, \
927 DECL_LINENUMBERS_OFFSET (current_method) = 0)
929 #define HANDLE_END_METHODS() \
930 { current_method = NULL_TREE; }
932 #define HANDLE_CODE_ATTRIBUTE(MAX_STACK, MAX_LOCALS, CODE_LENGTH) \
933 { DECL_MAX_STACK (current_method) = (MAX_STACK); \
934 DECL_MAX_LOCALS (current_method) = (MAX_LOCALS); \
935 DECL_CODE_LENGTH (current_method) = (CODE_LENGTH); \
936 DECL_CODE_OFFSET (current_method) = JCF_TELL (jcf); }
938 #define HANDLE_LOCALVARIABLETABLE_ATTRIBUTE(COUNT) \
940 DECL_LOCALVARIABLES_OFFSET (current_method) = JCF_TELL (jcf) - 2; \
941 JCF_SKIP (jcf, n * 10); }
943 #define HANDLE_LINENUMBERTABLE_ATTRIBUTE(COUNT) \
945 DECL_LINENUMBERS_OFFSET (current_method) = JCF_TELL (jcf) - 2; \
946 JCF_SKIP (jcf, n * 4); }
948 #define HANDLE_EXCEPTIONS_ATTRIBUTE(COUNT) \
951 tree list = DECL_FUNCTION_THROWS (current_method); \
954 tree thrown_class = get_class_constant (jcf, JCF_readu2 (jcf)); \
955 list = tree_cons (NULL_TREE, thrown_class, list); \
957 DECL_FUNCTION_THROWS (current_method) = nreverse (list); \
960 #define HANDLE_DEPRECATED_ATTRIBUTE() handle_deprecated ()
962 /* Link seen inner classes to their outer context and register the
963 inner class to its outer context. They will be later loaded. */
964 #define HANDLE_INNERCLASSES_ATTRIBUTE(COUNT) \
965 handle_innerclass_attribute (COUNT, jcf, attribute_length)
967 #define HANDLE_SYNTHETIC_ATTRIBUTE() \
969 /* Irrelevant decls should have been nullified by the END macros. \
970 DECL_ARTIFICIAL on fields is used for something else (See \
971 PUSH_FIELD in java-tree.h) */ \
972 if (current_method) \
973 DECL_ARTIFICIAL (current_method) = 1; \
974 else if (current_field) \
975 FIELD_SYNTHETIC (current_field) = 1; \
977 TYPE_SYNTHETIC (current_class) = 1; \
980 #define HANDLE_GCJCOMPILED_ATTRIBUTE() \
982 if (current_class == object_type_node) \
983 jcf->right_zip = 1; \
986 #define HANDLE_RUNTIMEVISIBLEANNOTATIONS_ATTRIBUTE() \
988 handle_member_annotations (index, jcf, name_data, attribute_length, attr_type); \
991 #define HANDLE_RUNTIMEINVISIBLEANNOTATIONS_ATTRIBUTE() \
993 JCF_SKIP(jcf, attribute_length); \
996 #define HANDLE_RUNTIMEVISIBLEPARAMETERANNOTATIONS_ATTRIBUTE() \
998 handle_parameter_annotations (index, jcf, name_data, attribute_length, attr_type); \
1001 #define HANDLE_RUNTIMEINVISIBLEPARAMETERANNOTATIONS_ATTRIBUTE() \
1003 JCF_SKIP(jcf, attribute_length); \
1006 #define HANDLE_ANNOTATIONDEFAULT_ATTRIBUTE() \
1008 handle_default_annotation (index, jcf, name_data, attribute_length, attr_type); \
1011 #define HANDLE_ENCLOSINGMETHOD_ATTRIBUTE() \
1013 handle_enclosingmethod_attribute (index, jcf, name_data, \
1014 attribute_length, attr_type); \
1017 #define HANDLE_SIGNATURE_ATTRIBUTE() \
1019 handle_signature_attribute (index, jcf, name_data, \
1020 attribute_length, attr_type); \
1023 #include "jcf-reader.c"
1026 parse_signature (JCF
*jcf
, int sig_index
)
1028 gcc_assert (sig_index
> 0
1029 && sig_index
< JPOOL_SIZE (jcf
)
1030 && JPOOL_TAG (jcf
, sig_index
) == CONSTANT_Utf8
);
1032 return parse_signature_string (JPOOL_UTF_DATA (jcf
, sig_index
),
1033 JPOOL_UTF_LENGTH (jcf
, sig_index
));
1037 get_constant (JCF
*jcf
, int index
)
1041 if (index
<= 0 || index
>= JPOOL_SIZE(jcf
))
1043 tag
= JPOOL_TAG (jcf
, index
);
1044 if ((tag
& CONSTANT_ResolvedFlag
) || tag
== CONSTANT_Utf8
)
1045 return jcf
->cpool
.data
[index
].t
;
1048 case CONSTANT_Integer
:
1050 jint num
= JPOOL_INT(jcf
, index
);
1051 value
= build_int_cst (int_type_node
, num
);
1056 unsigned HOST_WIDE_INT num
= JPOOL_UINT (jcf
, index
);
1057 unsigned HOST_WIDE_INT lo
;
1060 lshift_double (num
, 0, 32, 64, &lo
, &hi
, 0);
1061 num
= JPOOL_UINT (jcf
, index
+1);
1062 add_double (lo
, hi
, num
, 0, &lo
, &hi
);
1063 value
= build_int_cst_wide_type (long_type_node
, lo
, hi
);
1067 case CONSTANT_Float
:
1069 jint num
= JPOOL_INT(jcf
, index
);
1073 real_from_target_fmt (&d
, &buf
, &ieee_single_format
);
1074 value
= build_real (float_type_node
, d
);
1078 case CONSTANT_Double
:
1080 long buf
[2], lo
, hi
;
1083 hi
= JPOOL_UINT (jcf
, index
);
1084 lo
= JPOOL_UINT (jcf
, index
+1);
1086 if (FLOAT_WORDS_BIG_ENDIAN
)
1087 buf
[0] = hi
, buf
[1] = lo
;
1089 buf
[0] = lo
, buf
[1] = hi
;
1091 real_from_target_fmt (&d
, buf
, &ieee_double_format
);
1092 value
= build_real (double_type_node
, d
);
1096 case CONSTANT_String
:
1098 tree name
= get_name_constant (jcf
, JPOOL_USHORT1 (jcf
, index
));
1099 const char *utf8_ptr
= IDENTIFIER_POINTER (name
);
1100 int utf8_len
= IDENTIFIER_LENGTH (name
);
1101 const unsigned char *utf8
;
1104 /* Check for a malformed Utf8 string. */
1105 utf8
= (const unsigned char *) utf8_ptr
;
1109 int char_len
= UT8_CHAR_LENGTH (*utf8
);
1110 if (char_len
< 0 || char_len
> 3 || char_len
> i
)
1111 fatal_error ("bad string constant");
1117 /* Allocate a new string value. */
1118 value
= build_string (utf8_len
, utf8_ptr
);
1119 TREE_TYPE (value
) = build_pointer_type (string_type_node
);
1125 JPOOL_TAG (jcf
, index
) = tag
| CONSTANT_ResolvedFlag
;
1126 jcf
->cpool
.data
[index
].t
= value
;
1129 internal_error ("bad value constant type %d, index %d",
1130 JPOOL_TAG (jcf
, index
), index
);
1134 get_name_constant (JCF
*jcf
, int index
)
1136 tree name
= get_constant (jcf
, index
);
1137 gcc_assert (TREE_CODE (name
) == IDENTIFIER_NODE
);
1141 /* Handle reading innerclass attributes. If a nonzero entry (denoting
1142 a non anonymous entry) is found, We augment the inner class list of
1143 the outer context with the newly resolved innerclass. */
1146 handle_innerclass_attribute (int count
, JCF
*jcf
, int attribute_length
)
1150 annotation_write_byte (JV_CLASS_ATTR
);
1151 annotation_write_int (attribute_length
+1);
1152 annotation_write_byte (JV_INNER_CLASSES_KIND
);
1153 annotation_write_short (count
);
1157 /* Read inner_class_info_index. This may be 0 */
1158 int icii
= JCF_readu2 (jcf
);
1159 /* Read outer_class_info_index. If the innerclasses attribute
1160 entry isn't a member (like an inner class) the value is 0. */
1161 int ocii
= JCF_readu2 (jcf
);
1162 /* Read inner_name_index. If the class we're dealing with is
1163 an anonymous class, it must be 0. */
1164 int ini
= JCF_readu2 (jcf
);
1165 /* Read the access flag. */
1166 int acc
= JCF_readu2 (jcf
);
1168 annotation_write_short (handle_constant (jcf
, icii
, CONSTANT_Class
));
1169 annotation_write_short (handle_constant (jcf
, ocii
, CONSTANT_Class
));
1170 annotation_write_short (handle_constant (jcf
, ini
, CONSTANT_Utf8
));
1171 annotation_write_short (acc
);
1173 /* If icii is 0, don't try to read the class. */
1176 tree
class = get_class_constant (jcf
, icii
);
1177 tree decl
= TYPE_NAME (class);
1178 /* Skip reading further if ocii is null */
1179 if (DECL_P (decl
) && !CLASS_COMPLETE_P (decl
) && ocii
)
1181 tree outer
= TYPE_NAME (get_class_constant (jcf
, ocii
));
1182 tree alias
= (ini
? get_name_constant (jcf
, ini
) : NULL_TREE
);
1183 set_class_decl_access_flags (acc
, decl
);
1184 DECL_CONTEXT (decl
) = outer
;
1185 DECL_INNER_CLASS_LIST (outer
) =
1186 tree_cons (decl
, alias
, DECL_INNER_CLASS_LIST (outer
));
1187 CLASS_COMPLETE_P (decl
) = 1;
1194 give_name_to_class (JCF
*jcf
, int i
)
1197 && i
< JPOOL_SIZE (jcf
)
1198 && JPOOL_TAG (jcf
, i
) == CONSTANT_Class
);
1201 tree package_name
= NULL_TREE
, tmp
;
1203 int j
= JPOOL_USHORT1 (jcf
, i
);
1204 /* verify_constant_pool confirmed that j is a CONSTANT_Utf8. */
1205 tree class_name
= unmangle_classname ((const char *) JPOOL_UTF_DATA (jcf
, j
),
1206 JPOOL_UTF_LENGTH (jcf
, j
));
1207 this_class
= lookup_class (class_name
);
1208 #ifdef USE_MAPPED_LOCATION
1210 tree source_name
= identifier_subst (class_name
, "", '.', '/', ".java");
1211 const char *sfname
= IDENTIFIER_POINTER (source_name
);
1212 linemap_add (line_table
, LC_ENTER
, false, sfname
, 0);
1213 input_location
= linemap_line_start (line_table
, 0, 1);
1214 file_start_location
= input_location
;
1215 DECL_SOURCE_LOCATION (TYPE_NAME (this_class
)) = input_location
;
1216 if (main_input_filename
== NULL
&& jcf
== main_jcf
)
1217 main_input_filename
= sfname
;
1220 if (! DECL_ARTIFICIAL (TYPE_NAME (this_class
)))
1222 input_location
= DECL_SOURCE_LOCATION (TYPE_NAME (this_class
));
1223 if (main_input_filename
== NULL
&& jcf
== main_jcf
)
1224 main_input_filename
= input_filename
;
1228 jcf
->cpool
.data
[i
].t
= this_class
;
1229 JPOOL_TAG (jcf
, i
) = CONSTANT_ResolvedClass
;
1230 split_qualified_name (&package_name
, &tmp
,
1231 DECL_NAME (TYPE_NAME (this_class
)));
1232 TYPE_PACKAGE (this_class
) = package_name
;
1237 /* Get the class of the CONSTANT_Class whose constant pool index is I. */
1240 get_class_constant (JCF
*jcf
, int i
)
1244 && i
< JPOOL_SIZE (jcf
)
1245 && (JPOOL_TAG (jcf
, i
) & ~CONSTANT_ResolvedFlag
) == CONSTANT_Class
);
1247 if (JPOOL_TAG (jcf
, i
) != CONSTANT_ResolvedClass
)
1249 int name_index
= JPOOL_USHORT1 (jcf
, i
);
1250 /* verify_constant_pool confirmed that name_index is a CONSTANT_Utf8. */
1251 const char *name
= (const char *) JPOOL_UTF_DATA (jcf
, name_index
);
1252 int nlength
= JPOOL_UTF_LENGTH (jcf
, name_index
);
1254 if (name
[0] == '[') /* Handle array "classes". */
1255 type
= TREE_TYPE (parse_signature_string ((const unsigned char *) name
, nlength
));
1258 tree cname
= unmangle_classname (name
, nlength
);
1259 type
= lookup_class (cname
);
1261 jcf
->cpool
.data
[i
].t
= type
;
1262 JPOOL_TAG (jcf
, i
) = CONSTANT_ResolvedClass
;
1265 type
= jcf
->cpool
.data
[i
].t
;
1269 /* Read a class with the fully qualified-name NAME.
1270 Return 1 iff we read the requested file.
1271 (It is still possible we failed if the file did not
1272 define the class it is supposed to.) */
1275 read_class (tree name
)
1278 tree icv
, class = NULL_TREE
;
1279 tree save_current_class
= current_class
;
1280 tree save_output_class
= output_class
;
1281 location_t save_location
= input_location
;
1282 JCF
*save_current_jcf
= current_jcf
;
1284 if ((icv
= IDENTIFIER_CLASS_VALUE (name
)) != NULL_TREE
)
1286 class = TREE_TYPE (icv
);
1287 jcf
= TYPE_JCF (class);
1294 const char* path_name
;
1295 this_jcf
.zipd
= NULL
;
1298 path_name
= find_class (IDENTIFIER_POINTER (name
),
1299 IDENTIFIER_LENGTH (name
),
1304 free(CONST_CAST (char *, path_name
));
1309 if (class == NULL_TREE
|| ! CLASS_PARSED_P (class))
1311 output_class
= current_class
= class;
1312 if (JCF_SEEN_IN_ZIP (current_jcf
))
1313 read_zip_member(current_jcf
,
1314 current_jcf
->zipd
, current_jcf
->zipd
->zipf
);
1315 jcf_parse (current_jcf
);
1316 /* Parsing might change the class, in which case we have to
1317 put it back where we found it. */
1318 if (current_class
!= class && icv
!= NULL_TREE
)
1319 TREE_TYPE (icv
) = current_class
;
1320 class = current_class
;
1322 layout_class (class);
1323 load_inner_classes (class);
1325 output_class
= save_output_class
;
1326 current_class
= save_current_class
;
1327 input_location
= save_location
;
1328 current_jcf
= save_current_jcf
;
1332 /* Load CLASS_OR_NAME. CLASS_OR_NAME can be a mere identifier if
1333 called from the parser, otherwise it's a RECORD_TYPE node. If
1334 VERBOSE is 1, print error message on failure to load a class. */
1336 load_class (tree class_or_name
, int verbose
)
1339 int class_loaded
= 0;
1340 tree class_decl
= NULL_TREE
;
1341 bool is_compiled_class
= false;
1343 /* We've already failed, don't try again. */
1344 if (TREE_CODE (class_or_name
) == RECORD_TYPE
1345 && TYPE_DUMMY (class_or_name
))
1348 /* class_or_name can be the name of the class we want to load */
1349 if (TREE_CODE (class_or_name
) == IDENTIFIER_NODE
)
1350 name
= class_or_name
;
1351 /* In some cases, it's a dependency that we process earlier that
1353 else if (TREE_CODE (class_or_name
) == TREE_LIST
)
1354 name
= TYPE_NAME (TREE_PURPOSE (class_or_name
));
1355 /* Or it's a type in the making */
1357 name
= DECL_NAME (TYPE_NAME (class_or_name
));
1359 class_decl
= IDENTIFIER_CLASS_VALUE (name
);
1360 if (class_decl
!= NULL_TREE
)
1362 tree type
= TREE_TYPE (class_decl
);
1364 = ((TYPE_JCF (type
) && JCF_SEEN_IN_ZIP (TYPE_JCF (type
)))
1365 || CLASS_FROM_CURRENTLY_COMPILED_P (type
));
1370 /* If flag_verify_invocations is unset, we don't try to load a class
1371 unless we're looking for Object (which is fixed by the ABI) or
1372 it's a class that we're going to compile. */
1373 if (flag_verify_invocations
1374 || class_or_name
== object_type_node
1375 || is_compiled_class
1376 || TREE_CODE (class_or_name
) == IDENTIFIER_NODE
)
1382 /* We've already loaded it. */
1383 if (IDENTIFIER_CLASS_VALUE (name
) != NULL_TREE
)
1385 tree tmp_decl
= IDENTIFIER_CLASS_VALUE (name
);
1386 if (CLASS_PARSED_P (TREE_TYPE (tmp_decl
)))
1390 if (read_class (name
))
1393 /* We failed loading name. Now consider that we might be looking
1394 for an inner class. */
1395 if ((separator
= strrchr (IDENTIFIER_POINTER (name
), '$'))
1396 || (separator
= strrchr (IDENTIFIER_POINTER (name
), '.')))
1400 name
= get_identifier (IDENTIFIER_POINTER (name
));
1403 /* Otherwise, we failed, we bail. */
1409 /* have we found the class we're looking for? */
1410 tree type_decl
= IDENTIFIER_CLASS_VALUE (saved
);
1411 tree type
= type_decl
? TREE_TYPE (type_decl
) : NULL
;
1412 class_loaded
= type
&& CLASS_PARSED_P (type
);
1418 if (flag_verify_invocations
|| ! flag_indirect_dispatch
)
1421 error ("cannot find file for class %s", IDENTIFIER_POINTER (saved
));
1425 /* This is just a diagnostic during testing, not a real problem. */
1427 warning (0, "cannot find file for class %s",
1428 IDENTIFIER_POINTER (saved
));
1431 if (TREE_CODE (class_or_name
) == RECORD_TYPE
)
1433 set_super_info (0, class_or_name
, object_type_node
, 0);
1434 TYPE_DUMMY (class_or_name
) = 1;
1435 /* We won't be able to output any debug info for this class. */
1436 DECL_IGNORED_P (TYPE_NAME (class_or_name
)) = 1;
1442 /* Parse the .class file JCF. */
1445 jcf_parse (JCF
* jcf
)
1449 bitmap_clear (field_offsets
);
1451 if (jcf_parse_preamble (jcf
) != 0)
1452 fatal_error ("not a valid Java .class file");
1453 code
= jcf_parse_constant_pool (jcf
);
1455 fatal_error ("error while parsing constant pool");
1456 code
= verify_constant_pool (jcf
);
1458 fatal_error ("error in constant pool entry #%d\n", code
);
1460 jcf_parse_class (jcf
);
1461 if (main_class
== NULL_TREE
)
1462 main_class
= current_class
;
1463 if (! quiet_flag
&& TYPE_NAME (current_class
))
1464 fprintf (stderr
, " %s %s",
1465 (jcf
->access_flags
& ACC_INTERFACE
) ? "interface" : "class",
1466 IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (current_class
))));
1467 if (CLASS_PARSED_P (current_class
))
1469 /* FIXME - where was first time */
1470 fatal_error ("reading class %s for the second time from %s",
1471 IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (current_class
))),
1474 CLASS_PARSED_P (current_class
) = 1;
1476 for (i
= 1; i
< JPOOL_SIZE(jcf
); i
++)
1478 switch (JPOOL_TAG (jcf
, i
))
1480 case CONSTANT_Class
:
1481 get_class_constant (jcf
, i
);
1486 code
= jcf_parse_fields (jcf
);
1488 fatal_error ("error while parsing fields");
1489 code
= jcf_parse_methods (jcf
);
1491 fatal_error ("error while parsing methods");
1492 code
= jcf_parse_final_attributes (jcf
);
1494 fatal_error ("error while parsing final attributes");
1496 if (TYPE_REFLECTION_DATA (current_class
))
1497 annotation_write_byte (JV_DONE_ATTR
);
1499 #ifdef USE_MAPPED_LOCATION
1500 linemap_add (line_table
, LC_LEAVE
, false, NULL
, 0);
1503 /* The fields of class_type_node are already in correct order. */
1504 if (current_class
!= class_type_node
&& current_class
!= object_type_node
)
1505 TYPE_FIELDS (current_class
) = nreverse (TYPE_FIELDS (current_class
));
1507 if (current_class
== object_type_node
)
1508 layout_class_methods (object_type_node
);
1510 all_class_list
= tree_cons (NULL_TREE
,
1511 TYPE_NAME (current_class
), all_class_list
);
1514 /* If we came across inner classes, load them now. */
1516 load_inner_classes (tree cur_class
)
1519 for (current
= DECL_INNER_CLASS_LIST (TYPE_NAME (cur_class
)); current
;
1520 current
= TREE_CHAIN (current
))
1522 tree name
= DECL_NAME (TREE_PURPOSE (current
));
1523 tree decl
= IDENTIFIER_GLOBAL_VALUE (name
);
1524 if (decl
&& ! CLASS_LOADED_P (TREE_TYPE (decl
))
1525 && !CLASS_BEING_LAIDOUT (TREE_TYPE (decl
)))
1526 load_class (name
, 1);
1531 duplicate_class_warning (const char *filename
)
1533 location_t warn_loc
;
1534 #ifdef USE_MAPPED_LOCATION
1535 linemap_add (line_table
, LC_RENAME
, 0, filename
, 0);
1536 warn_loc
= linemap_line_start (line_table
, 0, 1);
1538 warn_loc
.file
= filename
;
1541 warning (0, "%Hduplicate class will only be compiled once", &warn_loc
);
1545 java_layout_seen_class_methods (void)
1547 tree previous_list
= all_class_list
;
1548 tree end
= NULL_TREE
;
1553 for (current
= previous_list
;
1554 current
!= end
; current
= TREE_CHAIN (current
))
1556 tree decl
= TREE_VALUE (current
);
1557 tree cls
= TREE_TYPE (decl
);
1559 input_location
= DECL_SOURCE_LOCATION (decl
);
1561 if (! CLASS_LOADED_P (cls
))
1562 load_class (cls
, 0);
1564 layout_class_methods (cls
);
1567 /* Note that new classes might have been added while laying out
1568 methods, changing the value of all_class_list. */
1570 if (previous_list
!= all_class_list
)
1572 end
= previous_list
;
1573 previous_list
= all_class_list
;
1581 parse_class_file (void)
1584 location_t save_location
= input_location
;
1586 java_layout_seen_class_methods ();
1588 input_location
= DECL_SOURCE_LOCATION (TYPE_NAME (current_class
));
1589 #ifdef USE_MAPPED_LOCATION
1591 /* Re-enter the current file. */
1592 expanded_location loc
= expand_location (input_location
);
1593 linemap_add (line_table
, LC_ENTER
, 0, loc
.file
, loc
.line
);
1596 file_start_location
= input_location
;
1597 (*debug_hooks
->start_source_file
) (input_line
, input_filename
);
1599 gen_indirect_dispatch_tables (current_class
);
1601 for (method
= TYPE_METHODS (current_class
);
1602 method
!= NULL_TREE
; method
= TREE_CHAIN (method
))
1604 JCF
*jcf
= current_jcf
;
1606 if (METHOD_ABSTRACT (method
) || METHOD_DUMMY (method
))
1609 if (METHOD_NATIVE (method
))
1612 int decl_max_locals
;
1616 /* We need to compute the DECL_MAX_LOCALS. We need to take
1617 the wide types into account too. */
1618 for (arg
= TYPE_ARG_TYPES (TREE_TYPE (method
)), decl_max_locals
= 0;
1619 arg
!= end_params_node
;
1620 arg
= TREE_CHAIN (arg
), decl_max_locals
+= 1)
1622 if (TREE_VALUE (arg
) && TYPE_IS_WIDE (TREE_VALUE (arg
)))
1623 decl_max_locals
+= 1;
1625 DECL_MAX_LOCALS (method
) = decl_max_locals
;
1626 start_java_method (method
);
1627 give_name_to_locals (jcf
);
1628 *get_stmts () = build_jni_stub (method
);
1633 if (DECL_CODE_OFFSET (method
) == 0)
1635 current_function_decl
= method
;
1636 error ("missing Code attribute");
1640 input_location
= DECL_SOURCE_LOCATION (TYPE_NAME (current_class
));
1641 if (DECL_LINENUMBERS_OFFSET (method
))
1646 JCF_SEEK (jcf
, DECL_LINENUMBERS_OFFSET (method
));
1647 linenumber_count
= i
= JCF_readu2 (jcf
);
1648 linenumber_table
= ptr
= jcf
->read_ptr
;
1650 for (ptr
+= 2; --i
>= 0; ptr
+= 4)
1652 int line
= GET_u2 (ptr
);
1653 /* Set initial input_line to smallest linenumber.
1654 * Needs to be set before init_function_start. */
1655 if (min_line
== 0 || line
< min_line
)
1658 #ifdef USE_MAPPED_LOCATION
1660 input_location
= linemap_line_start (line_table
, min_line
, 1);
1663 input_line
= min_line
;
1668 linenumber_table
= NULL
;
1669 linenumber_count
= 0;
1672 start_java_method (method
);
1674 note_instructions (jcf
, method
);
1676 give_name_to_locals (jcf
);
1678 /* Bump up start_label_pc_this_method so we get a unique label number
1679 and reset highest_label_pc_this_method. */
1680 if (highest_label_pc_this_method
>= 0)
1682 /* We adjust to the next multiple of 1000. This is just a frill
1683 so the last 3 digits of the label number match the bytecode
1684 offset, which might make debugging marginally more convenient. */
1685 start_label_pc_this_method
1686 = ((((start_label_pc_this_method
+ highest_label_pc_this_method
)
1690 highest_label_pc_this_method
= -1;
1693 /* Convert bytecode to trees. */
1694 expand_byte_code (jcf
, method
);
1701 (*debug_hooks
->end_source_file
) (LOCATION_LINE (save_location
));
1702 input_location
= save_location
;
1706 add_predefined_file (tree name
)
1708 predef_filenames
= tree_cons (NULL_TREE
, name
, predef_filenames
);
1712 predefined_filename_p (tree node
)
1716 for (iter
= predef_filenames
; iter
!= NULL_TREE
; iter
= TREE_CHAIN (iter
))
1718 if (TREE_VALUE (iter
) == node
)
1724 /* Generate a function that does all static initialization for this
1725 translation unit. */
1728 java_emit_static_constructor (void)
1732 emit_register_classes (&body
);
1733 write_resource_constructor (&body
);
1736 cgraph_build_static_cdtor ('I', body
, DEFAULT_INIT_PRIORITY
);
1740 java_parse_file (int set_yydebug ATTRIBUTE_UNUSED
)
1742 int filename_count
= 0;
1743 location_t save_location
= input_location
;
1744 char *file_list
= NULL
, *list
, *next
;
1746 FILE *finput
= NULL
;
1749 bitmap_obstack_initialize (&bit_obstack
);
1750 field_offsets
= BITMAP_ALLOC (&bit_obstack
);
1752 if (flag_filelist_file
)
1755 finput
= fopen (main_input_filename
, "r");
1757 fatal_error ("can't open %s: %m", input_filename
);
1758 list
= XNEWVEC (char, avail
);
1765 count
= next
- list
;
1766 avail
= 2 * (count
+ avail
);
1767 list
= xrealloc (list
, avail
);
1768 next
= list
+ count
;
1769 avail
= avail
- count
;
1771 /* Subtract to to guarantee space for final '\0'. */
1772 count
= fread (next
, 1, avail
- 1, finput
);
1775 if (! feof (finput
))
1776 fatal_error ("error closing %s: %m", input_filename
);
1788 list
= CONST_CAST (char *, main_input_filename
);
1792 for (next
= list
; ; )
1795 if (flag_filelist_file
&& ! in_quotes
1796 && (ch
== '\n' || ch
== '\r' || ch
== '\t' || ch
== ' '
1797 || ch
== '&') /* FIXME */)
1811 if (flag_filelist_file
&& ch
== '"')
1813 in_quotes
= ! in_quotes
;
1828 /* Exclude .java files. */
1829 if (strlen (list
) > 5 && ! strcmp (list
+ strlen (list
) - 5, ".java"))
1835 node
= get_identifier (list
);
1839 /* Exclude file that we see twice on the command line. */
1841 if (IS_A_COMMAND_LINE_FILENAME_P (node
))
1842 duplicate_class_warning (IDENTIFIER_POINTER (node
));
1845 tree file_decl
= build_decl (TRANSLATION_UNIT_DECL
, node
, NULL
);
1846 TREE_CHAIN (file_decl
) = current_file_list
;
1847 current_file_list
= file_decl
;
1848 IS_A_COMMAND_LINE_FILENAME_P (node
) = 1;
1854 if (file_list
!= NULL
)
1857 if (filename_count
== 0)
1858 warning (0, "no input file specified");
1862 const char *resource_filename
;
1864 /* Only one resource file may be compiled at a time. */
1865 assert (TREE_CHAIN (current_file_list
) == NULL
);
1867 resource_filename
= IDENTIFIER_POINTER (DECL_NAME (current_file_list
));
1868 compile_resource_file (resource_name
, resource_filename
);
1873 current_jcf
= main_jcf
;
1874 current_file_list
= nreverse (current_file_list
);
1875 for (node
= current_file_list
; node
; node
= TREE_CHAIN (node
))
1877 unsigned char magic_string
[4];
1880 tree name
= DECL_NAME (node
);
1882 const char *filename
= IDENTIFIER_POINTER (name
);
1884 /* Skip already parsed files */
1885 real_path
= lrealpath (filename
);
1886 real_file
= get_identifier (real_path
);
1888 if (HAS_BEEN_ALREADY_PARSED_P (real_file
))
1891 /* Close previous descriptor, if any */
1892 if (finput
&& fclose (finput
))
1893 fatal_error ("can't close input file %s: %m", main_input_filename
);
1895 finput
= fopen (filename
, "rb");
1897 fatal_error ("can't open %s: %m", filename
);
1899 #ifdef IO_BUFFER_SIZE
1900 setvbuf (finput
, xmalloc (IO_BUFFER_SIZE
),
1901 _IOFBF
, IO_BUFFER_SIZE
);
1904 /* Figure what kind of file we're dealing with */
1905 if (fread (magic_string
, 1, 4, finput
) == 4)
1907 fseek (finput
, 0L, SEEK_SET
);
1908 magic
= GET_u4 (magic_string
);
1910 if (magic
== 0xcafebabe)
1912 CLASS_FILE_P (node
) = 1;
1913 current_jcf
= ggc_alloc (sizeof (JCF
));
1914 JCF_ZERO (current_jcf
);
1915 current_jcf
->read_state
= finput
;
1916 current_jcf
->filbuf
= jcf_filbuf_from_stdio
;
1917 jcf_parse (current_jcf
);
1918 DECL_SOURCE_LOCATION (node
) = file_start_location
;
1919 TYPE_JCF (current_class
) = current_jcf
;
1920 if (CLASS_FROM_CURRENTLY_COMPILED_P (current_class
))
1922 /* We've already compiled this class. */
1923 duplicate_class_warning (filename
);
1926 CLASS_FROM_CURRENTLY_COMPILED_P (current_class
) = 1;
1927 TREE_TYPE (node
) = current_class
;
1929 else if (magic
== (JCF_u4
)ZIPMAGIC
)
1931 main_jcf
= ggc_alloc (sizeof (JCF
));
1932 JCF_ZERO (main_jcf
);
1933 main_jcf
->read_state
= finput
;
1934 main_jcf
->filbuf
= jcf_filbuf_from_stdio
;
1935 #ifdef USE_MAPPED_LOCATION
1936 linemap_add (line_table
, LC_ENTER
, false, filename
, 0);
1937 input_location
= linemap_line_start (line_table
, 0, 1);
1939 if (open_in_zip (main_jcf
, filename
, NULL
, 0) < 0)
1940 fatal_error ("bad zip/jar file %s", filename
);
1941 localToFile
= SeenZipFiles
;
1942 /* Register all the classes defined there. */
1943 process_zip_dir (main_jcf
->read_state
);
1944 #ifdef USE_MAPPED_LOCATION
1945 linemap_add (line_table
, LC_LEAVE
, false, NULL
, 0);
1947 parse_zip_file_entries ();
1949 else if (magic
== (JCF_u4
) ZIPEMPTYMAGIC
)
1951 /* Ignore an empty input jar. */
1957 java_push_parser_context ();
1958 java_parser_context_save_global ();
1960 parse_source_file_1 (real_file
, filename
, finput
);
1961 java_parser_context_restore_global ();
1962 java_pop_parser_context (1);
1963 #ifdef USE_MAPPED_LOCATION
1964 linemap_add (line_table
, LC_LEAVE
, false, NULL
, 0);
1970 /* Do this before lowering any code. */
1971 for (node
= current_file_list
; node
; node
= TREE_CHAIN (node
))
1973 if (CLASS_FILE_P (node
))
1974 java_mark_class_local (TREE_TYPE (node
));
1977 for (node
= current_file_list
; node
; node
= TREE_CHAIN (node
))
1979 input_location
= DECL_SOURCE_LOCATION (node
);
1980 if (CLASS_FILE_P (node
))
1982 /* FIXME: These two flags really should be independent. We
1983 should be able to compile fully binary compatible, but
1984 with flag_verify_invocations on. */
1985 flag_verify_invocations
= ! flag_indirect_dispatch
;
1986 output_class
= current_class
= TREE_TYPE (node
);
1988 current_jcf
= TYPE_JCF (current_class
);
1989 layout_class (current_class
);
1990 load_inner_classes (current_class
);
1991 parse_class_file ();
1992 JCF_FINISH (current_jcf
);
1995 input_location
= save_location
;
1997 bitmap_obstack_release (&bit_obstack
);
2000 /* Arrange for any necessary initialization to happen. */
2001 java_emit_static_constructor ();
2003 /* Only finalize the compilation unit after we've told cgraph which
2004 functions have their addresses stored. */
2005 cgraph_finalize_compilation_unit ();
2010 /* Return the name of the class corresponding to the name of the file
2011 in this zip entry. The result is newly allocated using ALLOC. */
2013 compute_class_name (struct ZipDirectory
*zdir
)
2015 char *class_name_in_zip_dir
= ZIPDIR_FILENAME (zdir
);
2018 int filename_length
= zdir
->filename_length
;
2020 while (filename_length
> 2 && strncmp (class_name_in_zip_dir
, "./", 2) == 0)
2022 class_name_in_zip_dir
+= 2;
2023 filename_length
-= 2;
2026 filename_length
-= strlen (".class");
2027 class_name
= XNEWVEC (char, filename_length
+ 1);
2028 memcpy (class_name
, class_name_in_zip_dir
, filename_length
);
2029 class_name
[filename_length
] = '\0';
2031 for (i
= 0; i
< filename_length
; i
++)
2032 if (class_name
[i
] == '/')
2033 class_name
[i
] = '.';
2038 /* Return 0 if we should skip this entry, 1 if it is a .class file, 2
2039 if it is a property file of some sort. */
2041 classify_zip_file (struct ZipDirectory
*zdir
)
2043 char *class_name_in_zip_dir
= ZIPDIR_FILENAME (zdir
);
2045 if (zdir
->filename_length
> 6
2046 && !strncmp (&class_name_in_zip_dir
[zdir
->filename_length
- 6],
2050 /* For now we drop the manifest, but not other information. */
2051 if (zdir
->filename_length
== 20
2052 && !strncmp (class_name_in_zip_dir
, "META-INF/MANIFEST.MF", 20))
2055 /* Drop directory entries. */
2056 if (zdir
->filename_length
> 0
2057 && class_name_in_zip_dir
[zdir
->filename_length
- 1] == '/')
2063 /* Process all class entries found in the zip file. */
2065 parse_zip_file_entries (void)
2067 struct ZipDirectory
*zdir
;
2070 for (i
= 0, zdir
= (ZipDirectory
*)localToFile
->central_directory
;
2071 i
< localToFile
->count
; i
++, zdir
= ZIPDIR_NEXT (zdir
))
2075 switch (classify_zip_file (zdir
))
2082 char *class_name
= compute_class_name (zdir
);
2083 class = lookup_class (get_identifier (class_name
));
2085 current_jcf
= TYPE_JCF (class);
2086 output_class
= current_class
= class;
2088 /* This is a dummy class, and now we're compiling it for
2090 gcc_assert (! TYPE_DUMMY (class));
2092 /* This is for a corner case where we have a superclass
2093 but no superclass fields.
2095 This can happen if we earlier failed to lay out this
2096 class because its superclass was still in the process
2097 of being laid out; this occurs when we have recursive
2098 class dependencies via inner classes. Setting
2099 TYPE_SIZE to null here causes CLASS_LOADED_P to return
2100 false, so layout_class() will be called again. */
2101 if (TYPE_SIZE (class) && CLASSTYPE_SUPER (class)
2102 && integer_zerop (TYPE_SIZE (class)))
2103 TYPE_SIZE (class) = NULL_TREE
;
2105 if (! CLASS_LOADED_P (class))
2107 if (! CLASS_PARSED_P (class))
2109 read_zip_member (current_jcf
, zdir
, localToFile
);
2110 jcf_parse (current_jcf
);
2112 layout_class (current_class
);
2113 load_inner_classes (current_class
);
2116 if (TYPE_SIZE (current_class
) != error_mark_node
)
2118 parse_class_file ();
2119 free (current_jcf
->buffer
); /* No longer necessary */
2120 /* Note: there is a way to free this buffer right after a
2121 class seen in a zip file has been parsed. The idea is the
2122 set its jcf in such a way that buffer will be reallocated
2123 the time the code for the class will be generated. FIXME. */
2130 char *file_name
, *class_name_in_zip_dir
, *buffer
;
2132 file_name
= XNEWVEC (char, zdir
->filename_length
+ 1);
2133 class_name_in_zip_dir
= ZIPDIR_FILENAME (zdir
);
2134 strncpy (file_name
, class_name_in_zip_dir
, zdir
->filename_length
);
2135 file_name
[zdir
->filename_length
] = '\0';
2138 jcf
->read_state
= finput
;
2139 jcf
->filbuf
= jcf_filbuf_from_stdio
;
2140 jcf
->classname
= NULL
;
2141 jcf
->filename
= file_name
;
2144 if (read_zip_member (jcf
, zdir
, localToFile
) < 0)
2145 fatal_error ("error while reading %s from zip file", file_name
);
2147 buffer
= XNEWVEC (char, zdir
->filename_length
+ 1 +
2148 (jcf
->buffer_end
- jcf
->buffer
));
2149 strcpy (buffer
, file_name
);
2150 /* This is not a typo: we overwrite the trailing \0 of the
2151 file name; this is just how the data is laid out. */
2152 memcpy (buffer
+ zdir
->filename_length
,
2153 jcf
->buffer
, jcf
->buffer_end
- jcf
->buffer
);
2155 compile_resource_data (file_name
, buffer
,
2156 jcf
->buffer_end
- jcf
->buffer
);
2169 /* Read all the entries of the zip file, creates a class and a JCF. Sets the
2170 jcf up for further processing and link it to the created class. */
2173 process_zip_dir (FILE *finput
)
2178 for (i
= 0, zdir
= (ZipDirectory
*)localToFile
->central_directory
;
2179 i
< localToFile
->count
; i
++, zdir
= ZIPDIR_NEXT (zdir
))
2181 char *class_name
, *file_name
, *class_name_in_zip_dir
;
2185 class_name_in_zip_dir
= ZIPDIR_FILENAME (zdir
);
2187 /* Here we skip non-class files; we handle them later. */
2188 if (classify_zip_file (zdir
) != 1)
2191 class_name
= compute_class_name (zdir
);
2192 file_name
= XNEWVEC (char, zdir
->filename_length
+1);
2193 jcf
= ggc_alloc (sizeof (JCF
));
2196 strncpy (file_name
, class_name_in_zip_dir
, zdir
->filename_length
);
2197 file_name
[zdir
->filename_length
] = '\0';
2199 class = lookup_class (get_identifier (class_name
));
2201 if (CLASS_FROM_CURRENTLY_COMPILED_P (class))
2203 /* We've already compiled this class. */
2204 duplicate_class_warning (file_name
);
2207 /* This function is only called when processing a zip file seen
2208 on the command line. */
2209 CLASS_FROM_CURRENTLY_COMPILED_P (class) = 1;
2211 jcf
->read_state
= finput
;
2212 jcf
->filbuf
= jcf_filbuf_from_stdio
;
2213 jcf
->classname
= class_name
;
2214 jcf
->filename
= file_name
;
2217 TYPE_JCF (class) = jcf
;
2221 #include "gt-java-jcf-parse.h"
2222 #include "gtype-java.h"