1 /* Parser for Java(TM) .class files.
2 Copyright (C) 1996, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
3 2005, 2006, 2007, 2008, 2009, 2010 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"
34 #include "java-except.h"
37 #include "java-tree.h"
51 #ifdef HAVE_LANGINFO_CODESET
55 /* A CONSTANT_Utf8 element is converted to an IDENTIFIER_NODE at parse time. */
56 #define JPOOL_UTF(JCF, INDEX) CPOOL_UTF(&(JCF)->cpool, INDEX)
57 #define JPOOL_UTF_LENGTH(JCF, INDEX) IDENTIFIER_LENGTH (JPOOL_UTF (JCF, INDEX))
58 #define JPOOL_UTF_DATA(JCF, INDEX) \
59 ((const unsigned char *) IDENTIFIER_POINTER (JPOOL_UTF (JCF, INDEX)))
60 #define HANDLE_CONSTANT_Utf8(JCF, INDEX, LENGTH) \
62 unsigned char save; unsigned char *text; \
63 JCF_FILL (JCF, (LENGTH)+1); /* Make sure we read 1 byte beyond string. */ \
64 text = (JCF)->read_ptr; \
65 save = text[LENGTH]; \
67 (JCF)->cpool.data[INDEX].t = get_identifier ((const char *) text); \
68 text[LENGTH] = save; \
69 JCF_SKIP (JCF, LENGTH); } while (0)
73 extern struct obstack temporary_obstack;
75 static GTY(()) tree parse_roots[3];
77 /* The FIELD_DECL for the current field. */
78 #define current_field parse_roots[0]
80 /* The METHOD_DECL for the current method. */
81 #define current_method parse_roots[1]
83 /* A list of TRANSLATION_UNIT_DECLs for the files to be compiled. */
84 #define current_file_list parse_roots[2]
86 /* Line 0 in current file, if compiling from bytecode. */
87 static location_t file_start_location;
89 /* The Java archive that provides main_class; the main input file. */
90 static GTY(()) struct JCF * main_jcf;
92 /* The number of source files passed to us by -fsource-filename and an
93 array of pointers to each name. Used by find_sourcefile(). */
94 static int num_files = 0;
95 static char **filenames;
97 static struct ZipFile *localToFile;
99 /* A map of byte offsets in the reflection data that are fields which
101 bitmap field_offsets;
102 bitmap_obstack bit_obstack;
104 /* Declarations of some functions used here. */
105 static void handle_innerclass_attribute (int count, JCF *, int len);
106 static tree give_name_to_class (JCF *jcf, int index);
107 static char *compute_class_name (struct ZipDirectory *zdir);
108 static int classify_zip_file (struct ZipDirectory *zdir);
109 static void parse_zip_file_entries (void);
110 static void process_zip_dir (FILE *);
111 static void parse_class_file (void);
112 static void handle_deprecated (void);
113 static void set_source_filename (JCF *, int);
114 static void jcf_parse (struct JCF*);
115 static void load_inner_classes (tree);
116 static void handle_annotation (JCF *jcf, int level);
117 static void java_layout_seen_class_methods (void);
119 /* Handle "Deprecated" attribute. */
121 handle_deprecated (void)
123 if (current_field != NULL_TREE)
124 FIELD_DEPRECATED (current_field) = 1;
125 else if (current_method != NULL_TREE)
126 METHOD_DEPRECATED (current_method) = 1;
127 else if (current_class != NULL_TREE)
128 CLASS_DEPRECATED (TYPE_NAME (current_class)) = 1;
131 /* Shouldn't happen. */
138 /* Reverse a string. */
140 reverse (const char *s)
146 int len = strlen (s);
147 char *d = XNEWVAR (char, len + 1);
152 for (dp = &d[0], sp = &s[len-1]; sp >= s; dp++, sp--)
159 /* Compare two strings for qsort(). */
161 cmpstringp (const void *p1, const void *p2)
163 /* The arguments to this function are "pointers to
164 pointers to char", but strcmp() arguments are "pointers
165 to char", hence the following cast plus dereference */
167 return strcmp(*(const char *const*) p1, *(const char *const*) p2);
170 /* Create an array of strings, one for each source file that we've
171 seen. fsource_filename can either be the name of a single .java
172 file or a file that contains a list of filenames separated by
175 java_read_sourcefilenames (const char *fsource_filename)
179 && strlen (fsource_filename) > strlen (".java")
180 && strcmp ((fsource_filename
181 + strlen (fsource_filename)
185 /* fsource_filename isn't a .java file but a list of filenames
186 separated by newlines */
187 FILE *finput = fopen (fsource_filename, "r");
189 int longest_line = 0;
193 /* Find out how many files there are, and how long the filenames are. */
194 while (! feof (finput))
196 int ch = getc (finput);
200 if (len > longest_line)
212 /* Read the filenames. Put a pointer to each filename into the
215 char *linebuf = (char *) alloca (longest_line + 1);
219 filenames = XNEWVEC (char *, num_files);
224 int ch = getc (finput);
229 linebuf[charpos] = 0;
230 gcc_assert (i < num_files);
231 /* ??? Perhaps we should use lrealpath() here. Doing
232 so would tidy up things like /../ but the rest of
233 gcc seems to assume relative pathnames, not
234 absolute pathnames. */
235 /* realname = lrealpath (linebuf); */
236 filenames[i++] = reverse (linebuf);
240 gcc_assert (charpos < longest_line);
241 linebuf[charpos++] = ch;
245 qsort (filenames, num_files, sizeof (char *), cmpstringp);
251 filenames = XNEWVEC (char *, 1);
252 filenames[0] = reverse (fsource_filename);
257 /* Given a relative pathname such as foo/bar.java, attempt to find a
258 longer pathname with the same suffix.
260 This is a best guess heuristic; with some weird class hierarchies we
261 may fail to pick the correct source file. For example, if we have
262 the filenames foo/bar.java and also foo/foo/bar.java, we do not
263 have enough information to know which one is the right match for
267 find_sourcefile (const char *name)
269 int i = 0, j = num_files-1;
274 char *revname = reverse (name);
279 int cmp = strncmp (revname, filenames[k], strlen (revname));
282 /* OK, so we found one. But is it a unique match? */
284 && strncmp (revname, filenames[k-1], strlen (revname)) == 0)
286 && (strncmp (revname, filenames[k+1], strlen (revname))
290 found = filenames[k];
303 if (found && strlen (found) > strlen (name))
304 return reverse (found);
311 /* Handle "SourceFile" attribute. */
314 set_source_filename (JCF *jcf, int index)
316 tree sfname_id = get_name_constant (jcf, index);
317 const char *sfname = IDENTIFIER_POINTER (sfname_id);
318 const char *old_filename = input_filename;
319 int new_len = IDENTIFIER_LENGTH (sfname_id);
320 if (old_filename != NULL)
322 int old_len = strlen (old_filename);
323 /* Use the current input_filename (derived from the class name)
324 if it has a directory prefix, but otherwise matches sfname. */
325 if (old_len > new_len
326 && strcmp (sfname, old_filename + old_len - new_len) == 0
327 && (old_filename[old_len - new_len - 1] == '/'
328 || old_filename[old_len - new_len - 1] == '\\'))
331 if (strchr (sfname, '/') == NULL && strchr (sfname, '\\') == NULL)
333 const char *class_name
334 = IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (current_class)));
335 const char *dot = strrchr (class_name, '.');
338 /* Length of prefix, not counting final dot. */
339 int i = dot - class_name;
340 /* Concatenate current package prefix with new sfname. */
341 char *buf = XNEWVEC (char, i + new_len + 2); /* Space for '.' and '\0'. */
342 strcpy (buf + i + 1, sfname);
343 /* Copy package from class_name, replacing '.' by DIR_SEPARATOR.
344 Note we start at the end with the final package dot. */
347 char c = class_name[i];
352 sfname_id = get_identifier (buf);
354 sfname = IDENTIFIER_POINTER (sfname_id);
358 sfname = find_sourcefile (sfname);
359 line_table->maps[line_table->used-1].to_file = sfname;
360 if (current_class == main_class) main_input_filename = sfname;
366 /* Annotation handling.
368 The technique we use here is to copy the annotation data directly
369 from the input class file into the output file. We don't decode the
370 data at all, merely rewriting constant indexes whenever we come
371 across them: this is necessary because the constant pool in the
372 output file isn't the same as the constant pool in in the input.
374 The main advantage of this technique is that the resulting
375 annotation data is pointer-free, so it doesn't have to be relocated
376 at startup time. As a consequence of this, annotations have no
377 performance impact unless they are used. Also, this representation
381 /* Expand TYPE_REFLECTION_DATA by DELTA bytes. Return the address of
382 the start of the newly allocated region. */
384 static unsigned char*
385 annotation_grow (int delta)
387 unsigned char **data = &TYPE_REFLECTION_DATA (current_class);
388 long *datasize = &TYPE_REFLECTION_DATASIZE (current_class);
389 long len = *datasize;
393 *data = XNEWVAR (unsigned char, delta);
397 int newlen = *datasize + delta;
398 if (floor_log2 (newlen) != floor_log2 (*datasize))
399 *data = XRESIZEVAR (unsigned char, *data, 2 << (floor_log2 (newlen)));
405 /* annotation_rewrite_TYPE. Rewrite various int types at p. Use Java
406 byte order (i.e. big endian.) */
409 annotation_rewrite_byte (unsigned int n, unsigned char *p)
415 annotation_rewrite_short (unsigned int n, unsigned char *p)
422 annotation_rewrite_int (unsigned int n, unsigned char *p)
430 /* Read a 16-bit unsigned int in Java byte order (i.e. big
434 annotation_read_short (unsigned char *p)
437 tmp = (tmp << 8) | p[1];
441 /* annotation_write_TYPE. Rewrite various int types, appending them
442 to TYPE_REFLECTION_DATA. Use Java byte order (i.e. big
446 annotation_write_byte (unsigned int n)
448 annotation_rewrite_byte (n, annotation_grow (1));
452 annotation_write_short (unsigned int n)
454 annotation_rewrite_short (n, annotation_grow (2));
458 annotation_write_int (unsigned int n)
460 annotation_rewrite_int (n, annotation_grow (4));
463 /* Create a 64-bit constant in the constant pool.
465 This is used for both integer and floating-point types. As a
466 consequence, it will not work if the target floating-point format
467 is anything other than IEEE-754. While this is arguably a bug, the
468 runtime library makes exactly the same assumption and it's unlikely
469 that Java will ever run on a non-IEEE machine. */
472 handle_long_constant (JCF *jcf, CPool *cpool, enum cpool_tag kind,
473 int index, bool big_endian)
475 /* If we're on a 64-bit platform we can fit a long or double
476 into the same space as a jword. */
477 if (POINTER_SIZE >= 64)
478 index = find_constant1 (cpool, kind, JPOOL_LONG (jcf, index));
480 /* In a compiled program the constant pool is in native word
481 order. How weird is that??? */
483 index = find_constant2 (cpool, kind,
484 JPOOL_INT (jcf, index),
485 JPOOL_INT (jcf, index+1));
487 index = find_constant2 (cpool, kind,
488 JPOOL_INT (jcf, index+1),
489 JPOOL_INT (jcf, index));
494 /* Given a class file and an index into its constant pool, create an
495 entry in the outgoing constant pool for the same item. */
498 handle_constant (JCF *jcf, int index, enum cpool_tag purpose)
501 CPool *cpool = cpool_for_class (output_class);
506 if (! CPOOL_INDEX_IN_RANGE (&jcf->cpool, index))
507 error ("<constant pool index %d not in range>", index);
509 kind = JPOOL_TAG (jcf, index);
511 if ((kind & ~CONSTANT_ResolvedFlag) != purpose)
513 if (purpose == CONSTANT_Class
514 && kind == CONSTANT_Utf8)
517 error ("<constant pool index %d unexpected type", index);
523 case CONSTANT_ResolvedClass:
525 /* For some reason I know not the what of, class names in
526 annotations are UTF-8 strings in the constant pool but
527 class names in EnclosingMethod attributes are real class
528 references. Set CONSTANT_LazyFlag here so that the VM
529 doesn't attempt to resolve them at class initialization
531 tree resolved_class, class_name;
532 resolved_class = get_class_constant (jcf, index);
533 class_name = build_internal_class_name (resolved_class);
534 index = alloc_name_constant (CONSTANT_Class | CONSTANT_LazyFlag,
536 (IDENTIFIER_POINTER(class_name),
537 IDENTIFIER_LENGTH(class_name))));
542 tree utf8 = get_constant (jcf, index);
543 if (purpose == CONSTANT_Class)
544 /* Create a constant pool entry for a type signature. This
545 one has '.' rather than '/' because it isn't going into a
546 class file, it's going into a compiled object.
548 This has to match the logic in
549 _Jv_ClassReader::prepare_pool_entry(). */
550 utf8 = unmangle_classname (IDENTIFIER_POINTER(utf8),
551 IDENTIFIER_LENGTH(utf8));
552 index = alloc_name_constant (kind, utf8);
557 index = handle_long_constant (jcf, cpool, CONSTANT_Long, index,
561 case CONSTANT_Double:
562 index = handle_long_constant (jcf, cpool, CONSTANT_Double, index,
563 FLOAT_WORDS_BIG_ENDIAN);
567 case CONSTANT_Integer:
568 index = find_constant1 (cpool, kind, JPOOL_INT (jcf, index));
571 case CONSTANT_NameAndType:
573 uint16 name = JPOOL_USHORT1 (jcf, index);
574 uint16 sig = JPOOL_USHORT2 (jcf, index);
575 uint32 name_index = handle_constant (jcf, name, CONSTANT_Utf8);
576 uint32 sig_index = handle_constant (jcf, sig, CONSTANT_Class);
577 jword new_index = (name_index << 16) | sig_index;
578 index = find_constant1 (cpool, kind, new_index);
589 /* Read an element_value structure from an annotation in JCF. Return
590 the constant pool index for the resulting constant pool entry. */
593 handle_element_value (JCF *jcf, int level)
595 uint8 tag = JCF_readu (jcf);
598 annotation_write_byte (tag);
607 uint16 cindex = JCF_readu2 (jcf);
608 index = handle_constant (jcf, cindex,
610 annotation_write_short (index);
615 uint16 cindex = JCF_readu2 (jcf);
616 index = handle_constant (jcf, cindex,
618 annotation_write_short (index);
623 uint16 cindex = JCF_readu2 (jcf);
624 index = handle_constant (jcf, cindex,
626 annotation_write_short (index);
631 uint16 cindex = JCF_readu2 (jcf);
632 index = handle_constant (jcf, cindex,
634 annotation_write_short (index);
639 uint16 cindex = JCF_readu2 (jcf);
640 /* Despite what the JVM spec says, compilers generate a Utf8
641 constant here, not a String. */
642 index = handle_constant (jcf, cindex,
644 annotation_write_short (index);
650 uint16 type_name_index = JCF_readu2 (jcf);
651 uint16 const_name_index = JCF_readu2 (jcf);
652 index = handle_constant (jcf, type_name_index,
654 annotation_write_short (index);
655 index = handle_constant (jcf, const_name_index,
657 annotation_write_short (index);
662 uint16 class_info_index = JCF_readu2 (jcf);
663 index = handle_constant (jcf, class_info_index,
665 annotation_write_short (index);
670 handle_annotation (jcf, level + 1);
675 uint16 n_array_elts = JCF_readu2 (jcf);
676 annotation_write_short (n_array_elts);
677 while (n_array_elts--)
678 handle_element_value (jcf, level + 1);
688 /* Read an annotation structure from JCF. Write it to the
689 reflection_data field of the outgoing class. */
692 handle_annotation (JCF *jcf, int level)
694 uint16 type_index = JCF_readu2 (jcf);
695 uint16 npairs = JCF_readu2 (jcf);
696 int index = handle_constant (jcf, type_index,
698 annotation_write_short (index);
699 annotation_write_short (npairs);
702 uint16 name_index = JCF_readu2 (jcf);
703 index = handle_constant (jcf, name_index,
705 annotation_write_short (index);
706 handle_element_value (jcf, level + 2);
710 /* Read an annotation count from JCF, and write the following
711 annotations to the reflection_data field of the outgoing class. */
714 handle_annotations (JCF *jcf, int level)
716 uint16 num = JCF_readu2 (jcf);
717 annotation_write_short (num);
719 handle_annotation (jcf, level);
722 /* As handle_annotations(), but perform a sanity check that we write
723 the same number of bytes that we were expecting. */
726 handle_annotation_attribute (int ATTRIBUTE_UNUSED index, JCF *jcf,
729 long old_datasize = TYPE_REFLECTION_DATASIZE (current_class);
731 handle_annotations (jcf, 0);
733 gcc_assert (old_datasize + length
734 == TYPE_REFLECTION_DATASIZE (current_class));
737 /* gcj permutes its fields array after generating annotation_data, so
738 we have to fixup field indexes for fields that have moved. Given
739 ARG, a VEC_int, fixup the field indexes in the reflection_data of
740 the outgoing class. We use field_offsets to tell us where the
744 rewrite_reflection_indexes (void *arg)
748 VEC(int, heap) *map = (VEC(int, heap) *) arg;
749 unsigned char *data = TYPE_REFLECTION_DATA (current_class);
753 EXECUTE_IF_SET_IN_BITMAP (field_offsets, 0, offset, bi)
755 uint16 index = annotation_read_short (data + offset);
756 annotation_rewrite_short
757 (VEC_index (int, map, index), data + offset);
762 /* Read the RuntimeVisibleAnnotations from JCF and write them to the
763 reflection_data of the outgoing class. */
766 handle_member_annotations (int member_index, JCF *jcf,
767 const unsigned char *name ATTRIBUTE_UNUSED,
768 long len, jv_attr_type member_type)
770 int new_len = len + 1;
771 annotation_write_byte (member_type);
772 if (member_type != JV_CLASS_ATTR)
774 annotation_write_int (new_len);
775 annotation_write_byte (JV_ANNOTATIONS_KIND);
776 if (member_type == JV_FIELD_ATTR)
777 bitmap_set_bit (field_offsets, TYPE_REFLECTION_DATASIZE (current_class));
778 if (member_type != JV_CLASS_ATTR)
779 annotation_write_short (member_index);
780 handle_annotation_attribute (member_index, jcf, len);
783 /* Read the RuntimeVisibleParameterAnnotations from JCF and write them
784 to the reflection_data of the outgoing class. */
787 handle_parameter_annotations (int member_index, JCF *jcf,
788 const unsigned char *name ATTRIBUTE_UNUSED,
789 long len, jv_attr_type member_type)
791 int new_len = len + 1;
793 annotation_write_byte (member_type);
794 if (member_type != JV_CLASS_ATTR)
796 annotation_write_int (new_len);
797 annotation_write_byte (JV_PARAMETER_ANNOTATIONS_KIND);
798 if (member_type != JV_CLASS_ATTR)
799 annotation_write_short (member_index);
800 num = JCF_readu (jcf);
801 annotation_write_byte (num);
803 handle_annotations (jcf, 0);
807 /* Read the AnnotationDefault data from JCF and write them to the
808 reflection_data of the outgoing class. */
811 handle_default_annotation (int member_index, JCF *jcf,
812 const unsigned char *name ATTRIBUTE_UNUSED,
813 long len, jv_attr_type member_type)
815 int new_len = len + 1;
816 annotation_write_byte (member_type);
817 if (member_type != JV_CLASS_ATTR)
819 annotation_write_int (new_len);
820 annotation_write_byte (JV_ANNOTATION_DEFAULT_KIND);
821 if (member_type != JV_CLASS_ATTR)
822 annotation_write_short (member_index);
823 handle_element_value (jcf, 0);
826 /* As above, for the EnclosingMethod attribute. */
829 handle_enclosingmethod_attribute (int member_index, JCF *jcf,
830 const unsigned char *name ATTRIBUTE_UNUSED,
831 long len, jv_attr_type member_type)
833 int new_len = len + 1;
835 annotation_write_byte (member_type);
836 if (member_type != JV_CLASS_ATTR)
838 annotation_write_int (new_len);
839 annotation_write_byte (JV_ENCLOSING_METHOD_KIND);
840 if (member_type != JV_CLASS_ATTR)
841 annotation_write_short (member_index);
843 index = JCF_readu2 (jcf);
844 index = handle_constant (jcf, index, CONSTANT_Class);
845 annotation_write_short (index);
847 index = JCF_readu2 (jcf);
848 index = handle_constant (jcf, index, CONSTANT_NameAndType);
849 annotation_write_short (index);
852 /* As above, for the Signature attribute. */
855 handle_signature_attribute (int member_index, JCF *jcf,
856 const unsigned char *name ATTRIBUTE_UNUSED,
857 long len, jv_attr_type member_type)
859 int new_len = len + 1;
861 annotation_write_byte (member_type);
862 if (member_type != JV_CLASS_ATTR)
864 annotation_write_int (new_len);
865 annotation_write_byte (JV_SIGNATURE_KIND);
866 if (member_type != JV_CLASS_ATTR)
867 annotation_write_short (member_index);
869 index = JCF_readu2 (jcf);
870 index = handle_constant (jcf, index, CONSTANT_Utf8);
871 annotation_write_short (index);
876 #define HANDLE_SOURCEFILE(INDEX) set_source_filename (jcf, INDEX)
878 #define HANDLE_CLASS_INFO(ACCESS_FLAGS, THIS, SUPER, INTERFACES_COUNT) \
879 { tree super_class = SUPER==0 ? NULL_TREE : get_class_constant (jcf, SUPER); \
880 output_class = current_class = give_name_to_class (jcf, THIS); \
881 set_super_info (ACCESS_FLAGS, current_class, super_class, INTERFACES_COUNT);}
883 #define HANDLE_CLASS_INTERFACE(INDEX) \
884 add_interface (current_class, get_class_constant (jcf, INDEX))
886 #define HANDLE_START_FIELD(ACCESS_FLAGS, NAME, SIGNATURE, ATTRIBUTE_COUNT) \
887 { int sig_index = SIGNATURE; \
888 current_field = add_field (current_class, get_name_constant (jcf, NAME), \
889 parse_signature (jcf, sig_index), ACCESS_FLAGS); \
890 set_java_signature (TREE_TYPE (current_field), JPOOL_UTF (jcf, sig_index)); \
891 if ((ACCESS_FLAGS) & ACC_FINAL) \
892 MAYBE_CREATE_VAR_LANG_DECL_SPECIFIC (current_field); \
895 #define HANDLE_END_FIELDS() \
896 (current_field = NULL_TREE)
898 #define HANDLE_CONSTANTVALUE(INDEX) \
899 { tree constant; int index = INDEX; \
900 if (JPOOL_TAG (jcf, index) == CONSTANT_String) { \
901 tree name = get_name_constant (jcf, JPOOL_USHORT1 (jcf, index)); \
902 constant = build_utf8_ref (name); \
905 constant = get_constant (jcf, index); \
906 set_constant_value (current_field, constant); }
908 #define HANDLE_METHOD(ACCESS_FLAGS, NAME, SIGNATURE, ATTRIBUTE_COUNT) \
909 (current_method = add_method (current_class, ACCESS_FLAGS, \
910 get_name_constant (jcf, NAME), \
911 get_name_constant (jcf, SIGNATURE)), \
912 DECL_LOCALVARIABLES_OFFSET (current_method) = 0, \
913 DECL_LINENUMBERS_OFFSET (current_method) = 0)
915 #define HANDLE_END_METHODS() \
916 { current_method = NULL_TREE; }
918 #define HANDLE_CODE_ATTRIBUTE(MAX_STACK, MAX_LOCALS, CODE_LENGTH) \
919 { DECL_MAX_STACK (current_method) = (MAX_STACK); \
920 DECL_MAX_LOCALS (current_method) = (MAX_LOCALS); \
921 DECL_CODE_LENGTH (current_method) = (CODE_LENGTH); \
922 DECL_CODE_OFFSET (current_method) = JCF_TELL (jcf); }
924 #define HANDLE_LOCALVARIABLETABLE_ATTRIBUTE(COUNT) \
926 DECL_LOCALVARIABLES_OFFSET (current_method) = JCF_TELL (jcf) - 2; \
927 JCF_SKIP (jcf, n * 10); }
929 #define HANDLE_LINENUMBERTABLE_ATTRIBUTE(COUNT) \
931 DECL_LINENUMBERS_OFFSET (current_method) = JCF_TELL (jcf) - 2; \
932 JCF_SKIP (jcf, n * 4); }
934 #define HANDLE_EXCEPTIONS_ATTRIBUTE(COUNT) \
937 tree list = DECL_FUNCTION_THROWS (current_method); \
940 tree thrown_class = get_class_constant (jcf, JCF_readu2 (jcf)); \
941 list = tree_cons (NULL_TREE, thrown_class, list); \
943 DECL_FUNCTION_THROWS (current_method) = nreverse (list); \
946 #define HANDLE_DEPRECATED_ATTRIBUTE() handle_deprecated ()
948 /* Link seen inner classes to their outer context and register the
949 inner class to its outer context. They will be later loaded. */
950 #define HANDLE_INNERCLASSES_ATTRIBUTE(COUNT) \
951 handle_innerclass_attribute (COUNT, jcf, attribute_length)
953 #define HANDLE_SYNTHETIC_ATTRIBUTE() \
955 /* Irrelevant decls should have been nullified by the END macros. \
956 DECL_ARTIFICIAL on fields is used for something else (See \
957 PUSH_FIELD in java-tree.h) */ \
958 if (current_method) \
959 DECL_ARTIFICIAL (current_method) = 1; \
960 else if (current_field) \
961 FIELD_SYNTHETIC (current_field) = 1; \
963 TYPE_SYNTHETIC (current_class) = 1; \
966 #define HANDLE_GCJCOMPILED_ATTRIBUTE() \
968 if (current_class == object_type_node) \
969 jcf->right_zip = 1; \
972 #define HANDLE_RUNTIMEVISIBLEANNOTATIONS_ATTRIBUTE() \
974 handle_member_annotations (index, jcf, name_data, attribute_length, attr_type); \
977 #define HANDLE_RUNTIMEINVISIBLEANNOTATIONS_ATTRIBUTE() \
979 JCF_SKIP(jcf, attribute_length); \
982 #define HANDLE_RUNTIMEVISIBLEPARAMETERANNOTATIONS_ATTRIBUTE() \
984 handle_parameter_annotations (index, jcf, name_data, attribute_length, attr_type); \
987 #define HANDLE_RUNTIMEINVISIBLEPARAMETERANNOTATIONS_ATTRIBUTE() \
989 JCF_SKIP(jcf, attribute_length); \
992 #define HANDLE_ANNOTATIONDEFAULT_ATTRIBUTE() \
994 handle_default_annotation (index, jcf, name_data, attribute_length, attr_type); \
997 #define HANDLE_ENCLOSINGMETHOD_ATTRIBUTE() \
999 handle_enclosingmethod_attribute (index, jcf, name_data, \
1000 attribute_length, attr_type); \
1003 #define HANDLE_SIGNATURE_ATTRIBUTE() \
1005 handle_signature_attribute (index, jcf, name_data, \
1006 attribute_length, attr_type); \
1009 #include "jcf-reader.c"
1012 parse_signature (JCF *jcf, int sig_index)
1014 gcc_assert (sig_index > 0
1015 && sig_index < JPOOL_SIZE (jcf)
1016 && JPOOL_TAG (jcf, sig_index) == CONSTANT_Utf8);
1018 return parse_signature_string (JPOOL_UTF_DATA (jcf, sig_index),
1019 JPOOL_UTF_LENGTH (jcf, sig_index));
1023 get_constant (JCF *jcf, int index)
1027 if (index <= 0 || index >= JPOOL_SIZE(jcf))
1029 tag = JPOOL_TAG (jcf, index);
1030 if ((tag & CONSTANT_ResolvedFlag) || tag == CONSTANT_Utf8)
1031 return jcf->cpool.data[index].t;
1034 case CONSTANT_Integer:
1036 jint num = JPOOL_INT(jcf, index);
1037 value = build_int_cst (int_type_node, num);
1042 unsigned HOST_WIDE_INT num;
1045 num = JPOOL_UINT (jcf, index);
1046 val = double_int_lshift (uhwi_to_double_int (num), 32, 64, false);
1047 num = JPOOL_UINT (jcf, index + 1);
1048 val = double_int_ior (val, uhwi_to_double_int (num));
1050 value = double_int_to_tree (long_type_node, val);
1054 case CONSTANT_Float:
1056 jint num = JPOOL_INT(jcf, index);
1060 real_from_target_fmt (&d, &buf, &ieee_single_format);
1061 value = build_real (float_type_node, d);
1065 case CONSTANT_Double:
1067 long buf[2], lo, hi;
1070 hi = JPOOL_UINT (jcf, index);
1071 lo = JPOOL_UINT (jcf, index+1);
1073 if (FLOAT_WORDS_BIG_ENDIAN)
1074 buf[0] = hi, buf[1] = lo;
1076 buf[0] = lo, buf[1] = hi;
1078 real_from_target_fmt (&d, buf, &ieee_double_format);
1079 value = build_real (double_type_node, d);
1083 case CONSTANT_String:
1085 tree name = get_name_constant (jcf, JPOOL_USHORT1 (jcf, index));
1086 const char *utf8_ptr = IDENTIFIER_POINTER (name);
1087 int utf8_len = IDENTIFIER_LENGTH (name);
1088 const unsigned char *utf8;
1091 /* Check for a malformed Utf8 string. */
1092 utf8 = (const unsigned char *) utf8_ptr;
1096 int char_len = UT8_CHAR_LENGTH (*utf8);
1097 if (char_len < 0 || char_len > 3 || char_len > i)
1098 fatal_error ("bad string constant");
1104 /* Allocate a new string value. */
1105 value = build_string (utf8_len, utf8_ptr);
1106 TREE_TYPE (value) = build_pointer_type (string_type_node);
1112 JPOOL_TAG (jcf, index) = tag | CONSTANT_ResolvedFlag;
1113 jcf->cpool.data[index].t = value;
1116 internal_error ("bad value constant type %d, index %d",
1117 JPOOL_TAG (jcf, index), index);
1121 get_name_constant (JCF *jcf, int index)
1123 tree name = get_constant (jcf, index);
1124 gcc_assert (TREE_CODE (name) == IDENTIFIER_NODE);
1128 /* Handle reading innerclass attributes. If a nonzero entry (denoting
1129 a non anonymous entry) is found, We augment the inner class list of
1130 the outer context with the newly resolved innerclass. */
1133 handle_innerclass_attribute (int count, JCF *jcf, int attribute_length)
1137 annotation_write_byte (JV_CLASS_ATTR);
1138 annotation_write_int (attribute_length+1);
1139 annotation_write_byte (JV_INNER_CLASSES_KIND);
1140 annotation_write_short (count);
1144 /* Read inner_class_info_index. This may be 0 */
1145 int icii = JCF_readu2 (jcf);
1146 /* Read outer_class_info_index. If the innerclasses attribute
1147 entry isn't a member (like an inner class) the value is 0. */
1148 int ocii = JCF_readu2 (jcf);
1149 /* Read inner_name_index. If the class we're dealing with is
1150 an anonymous class, it must be 0. */
1151 int ini = JCF_readu2 (jcf);
1152 /* Read the access flag. */
1153 int acc = JCF_readu2 (jcf);
1155 annotation_write_short (handle_constant (jcf, icii, CONSTANT_Class));
1156 annotation_write_short (handle_constant (jcf, ocii, CONSTANT_Class));
1157 annotation_write_short (handle_constant (jcf, ini, CONSTANT_Utf8));
1158 annotation_write_short (acc);
1160 /* If icii is 0, don't try to read the class. */
1163 tree klass = get_class_constant (jcf, icii);
1164 tree decl = TYPE_NAME (klass);
1165 /* Skip reading further if ocii is null */
1166 if (DECL_P (decl) && !CLASS_COMPLETE_P (decl) && ocii)
1168 tree outer = TYPE_NAME (get_class_constant (jcf, ocii));
1169 tree alias = (ini ? get_name_constant (jcf, ini) : NULL_TREE);
1170 set_class_decl_access_flags (acc, decl);
1171 DECL_CONTEXT (decl) = outer;
1172 DECL_INNER_CLASS_LIST (outer) =
1173 tree_cons (decl, alias, DECL_INNER_CLASS_LIST (outer));
1174 CLASS_COMPLETE_P (decl) = 1;
1181 give_name_to_class (JCF *jcf, int i)
1184 && i < JPOOL_SIZE (jcf)
1185 && JPOOL_TAG (jcf, i) == CONSTANT_Class);
1188 tree package_name = NULL_TREE, tmp;
1190 int j = JPOOL_USHORT1 (jcf, i);
1191 /* verify_constant_pool confirmed that j is a CONSTANT_Utf8. */
1192 tree class_name = unmangle_classname ((const char *) JPOOL_UTF_DATA (jcf, j),
1193 JPOOL_UTF_LENGTH (jcf, j));
1194 this_class = lookup_class (class_name);
1196 tree source_name = identifier_subst (class_name, "", '.', '/', ".java");
1197 const char *sfname = find_sourcefile (IDENTIFIER_POINTER (source_name));
1198 linemap_add (line_table, LC_ENTER, false, sfname, 0);
1199 input_location = linemap_line_start (line_table, 0, 1);
1200 file_start_location = input_location;
1201 DECL_SOURCE_LOCATION (TYPE_NAME (this_class)) = input_location;
1202 if (main_input_filename == NULL && jcf == main_jcf)
1203 main_input_filename = sfname;
1206 jcf->cpool.data[i].t = this_class;
1207 JPOOL_TAG (jcf, i) = CONSTANT_ResolvedClass;
1208 split_qualified_name (&package_name, &tmp,
1209 DECL_NAME (TYPE_NAME (this_class)));
1210 TYPE_PACKAGE (this_class) = package_name;
1215 /* Get the class of the CONSTANT_Class whose constant pool index is I. */
1218 get_class_constant (JCF *jcf, int i)
1222 && i < JPOOL_SIZE (jcf)
1223 && (JPOOL_TAG (jcf, i) & ~CONSTANT_ResolvedFlag) == CONSTANT_Class);
1225 if (JPOOL_TAG (jcf, i) != CONSTANT_ResolvedClass)
1227 int name_index = JPOOL_USHORT1 (jcf, i);
1228 /* verify_constant_pool confirmed that name_index is a CONSTANT_Utf8. */
1229 const char *name = (const char *) JPOOL_UTF_DATA (jcf, name_index);
1230 int nlength = JPOOL_UTF_LENGTH (jcf, name_index);
1232 if (name[0] == '[') /* Handle array "classes". */
1233 type = TREE_TYPE (parse_signature_string ((const unsigned char *) name, nlength));
1236 tree cname = unmangle_classname (name, nlength);
1237 type = lookup_class (cname);
1239 jcf->cpool.data[i].t = type;
1240 JPOOL_TAG (jcf, i) = CONSTANT_ResolvedClass;
1243 type = jcf->cpool.data[i].t;
1247 /* Read a class with the fully qualified-name NAME.
1248 Return 1 iff we read the requested file.
1249 (It is still possible we failed if the file did not
1250 define the class it is supposed to.) */
1253 read_class (tree name)
1256 tree icv, klass = NULL_TREE;
1257 tree save_current_class = current_class;
1258 tree save_output_class = output_class;
1259 location_t save_location = input_location;
1260 JCF *save_current_jcf = current_jcf;
1262 if ((icv = IDENTIFIER_CLASS_VALUE (name)) != NULL_TREE)
1264 klass = TREE_TYPE (icv);
1265 jcf = TYPE_JCF (klass);
1272 const char* path_name;
1273 this_jcf.zipd = NULL;
1276 path_name = find_class (IDENTIFIER_POINTER (name),
1277 IDENTIFIER_LENGTH (name),
1282 free(CONST_CAST (char *, path_name));
1287 if (klass == NULL_TREE || ! CLASS_PARSED_P (klass))
1289 output_class = current_class = klass;
1290 if (JCF_SEEN_IN_ZIP (current_jcf))
1291 read_zip_member(current_jcf,
1292 current_jcf->zipd, current_jcf->zipd->zipf);
1293 jcf_parse (current_jcf);
1294 /* Parsing might change the class, in which case we have to
1295 put it back where we found it. */
1296 if (current_class != klass && icv != NULL_TREE)
1297 TREE_TYPE (icv) = current_class;
1298 klass = current_class;
1300 layout_class (klass);
1301 load_inner_classes (klass);
1303 output_class = save_output_class;
1304 current_class = save_current_class;
1305 input_location = save_location;
1306 current_jcf = save_current_jcf;
1310 /* Load CLASS_OR_NAME. CLASS_OR_NAME can be a mere identifier if
1311 called from the parser, otherwise it's a RECORD_TYPE node. If
1312 VERBOSE is 1, print error message on failure to load a class. */
1314 load_class (tree class_or_name, int verbose)
1317 int class_loaded = 0;
1318 tree class_decl = NULL_TREE;
1319 bool is_compiled_class = false;
1321 /* We've already failed, don't try again. */
1322 if (TREE_CODE (class_or_name) == RECORD_TYPE
1323 && TYPE_DUMMY (class_or_name))
1326 /* class_or_name can be the name of the class we want to load */
1327 if (TREE_CODE (class_or_name) == IDENTIFIER_NODE)
1328 name = class_or_name;
1329 /* In some cases, it's a dependency that we process earlier that
1331 else if (TREE_CODE (class_or_name) == TREE_LIST)
1332 name = TYPE_NAME (TREE_PURPOSE (class_or_name));
1333 /* Or it's a type in the making */
1335 name = DECL_NAME (TYPE_NAME (class_or_name));
1337 class_decl = IDENTIFIER_CLASS_VALUE (name);
1338 if (class_decl != NULL_TREE)
1340 tree type = TREE_TYPE (class_decl);
1342 = ((TYPE_JCF (type) && JCF_SEEN_IN_ZIP (TYPE_JCF (type)))
1343 || CLASS_FROM_CURRENTLY_COMPILED_P (type));
1348 /* If flag_verify_invocations is unset, we don't try to load a class
1349 unless we're looking for Object (which is fixed by the ABI) or
1350 it's a class that we're going to compile. */
1351 if (flag_verify_invocations
1352 || class_or_name == object_type_node
1353 || is_compiled_class
1354 || TREE_CODE (class_or_name) == IDENTIFIER_NODE)
1358 const char *separator;
1360 /* We've already loaded it. */
1361 if (IDENTIFIER_CLASS_VALUE (name) != NULL_TREE)
1363 tree tmp_decl = IDENTIFIER_CLASS_VALUE (name);
1364 if (CLASS_PARSED_P (TREE_TYPE (tmp_decl)))
1368 if (read_class (name))
1371 /* We failed loading name. Now consider that we might be looking
1372 for an inner class. */
1373 if ((separator = strrchr (IDENTIFIER_POINTER (name), '$'))
1374 || (separator = strrchr (IDENTIFIER_POINTER (name), '.')))
1375 name = get_identifier_with_length (IDENTIFIER_POINTER (name),
1377 - IDENTIFIER_POINTER (name)));
1378 /* Otherwise, we failed, we bail. */
1384 /* have we found the class we're looking for? */
1385 tree type_decl = IDENTIFIER_CLASS_VALUE (saved);
1386 tree type = type_decl ? TREE_TYPE (type_decl) : NULL;
1387 class_loaded = type && CLASS_PARSED_P (type);
1393 if (flag_verify_invocations || ! flag_indirect_dispatch)
1396 error ("cannot find file for class %s", IDENTIFIER_POINTER (saved));
1400 /* This is just a diagnostic during testing, not a real problem. */
1402 warning (0, "cannot find file for class %s",
1403 IDENTIFIER_POINTER (saved));
1406 if (TREE_CODE (class_or_name) == RECORD_TYPE)
1408 set_super_info (0, class_or_name, object_type_node, 0);
1409 TYPE_DUMMY (class_or_name) = 1;
1410 /* We won't be able to output any debug info for this class. */
1411 DECL_IGNORED_P (TYPE_NAME (class_or_name)) = 1;
1417 /* Parse the .class file JCF. */
1420 jcf_parse (JCF* jcf)
1424 bitmap_clear (field_offsets);
1426 if (jcf_parse_preamble (jcf) != 0)
1427 fatal_error ("not a valid Java .class file");
1428 code = jcf_parse_constant_pool (jcf);
1430 fatal_error ("error while parsing constant pool");
1431 code = verify_constant_pool (jcf);
1433 fatal_error ("error in constant pool entry #%d\n", code);
1435 jcf_parse_class (jcf);
1436 if (main_class == NULL_TREE)
1437 main_class = current_class;
1438 if (! quiet_flag && TYPE_NAME (current_class))
1439 fprintf (stderr, " %s %s",
1440 (jcf->access_flags & ACC_INTERFACE) ? "interface" : "class",
1441 IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (current_class))));
1442 if (CLASS_PARSED_P (current_class))
1444 /* FIXME - where was first time */
1445 fatal_error ("reading class %s for the second time from %s",
1446 IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (current_class))),
1449 CLASS_PARSED_P (current_class) = 1;
1451 for (i = 1; i < JPOOL_SIZE(jcf); i++)
1453 switch (JPOOL_TAG (jcf, i))
1455 case CONSTANT_Class:
1456 get_class_constant (jcf, i);
1461 code = jcf_parse_fields (jcf);
1463 fatal_error ("error while parsing fields");
1464 code = jcf_parse_methods (jcf);
1466 fatal_error ("error while parsing methods");
1467 code = jcf_parse_final_attributes (jcf);
1469 fatal_error ("error while parsing final attributes");
1471 if (TYPE_REFLECTION_DATA (current_class))
1472 annotation_write_byte (JV_DONE_ATTR);
1474 linemap_add (line_table, LC_LEAVE, false, NULL, 0);
1476 /* The fields of class_type_node are already in correct order. */
1477 if (current_class != class_type_node && current_class != object_type_node)
1478 TYPE_FIELDS (current_class) = nreverse (TYPE_FIELDS (current_class));
1480 if (current_class == object_type_node)
1481 layout_class_methods (object_type_node);
1483 all_class_list = tree_cons (NULL_TREE,
1484 TYPE_NAME (current_class), all_class_list );
1487 /* If we came across inner classes, load them now. */
1489 load_inner_classes (tree cur_class)
1492 for (current = DECL_INNER_CLASS_LIST (TYPE_NAME (cur_class)); current;
1493 current = TREE_CHAIN (current))
1495 tree name = DECL_NAME (TREE_PURPOSE (current));
1496 tree decl = IDENTIFIER_GLOBAL_VALUE (name);
1497 if (decl && ! CLASS_LOADED_P (TREE_TYPE (decl))
1498 && !CLASS_BEING_LAIDOUT (TREE_TYPE (decl)))
1499 load_class (name, 1);
1504 duplicate_class_warning (const char *filename)
1506 location_t warn_loc;
1507 linemap_add (line_table, LC_RENAME, 0, filename, 0);
1508 warn_loc = linemap_line_start (line_table, 0, 1);
1509 warning_at (warn_loc, 0, "duplicate class will only be compiled once");
1513 java_layout_seen_class_methods (void)
1515 tree previous_list = all_class_list;
1516 tree end = NULL_TREE;
1521 for (current = previous_list;
1522 current != end; current = TREE_CHAIN (current))
1524 tree decl = TREE_VALUE (current);
1525 tree cls = TREE_TYPE (decl);
1527 input_location = DECL_SOURCE_LOCATION (decl);
1529 if (! CLASS_LOADED_P (cls))
1530 load_class (cls, 0);
1532 layout_class_methods (cls);
1535 /* Note that new classes might have been added while laying out
1536 methods, changing the value of all_class_list. */
1538 if (previous_list != all_class_list)
1540 end = previous_list;
1541 previous_list = all_class_list;
1549 parse_class_file (void)
1552 location_t save_location = input_location;
1554 java_layout_seen_class_methods ();
1556 input_location = DECL_SOURCE_LOCATION (TYPE_NAME (current_class));
1558 /* Re-enter the current file. */
1559 expanded_location loc = expand_location (input_location);
1560 linemap_add (line_table, LC_ENTER, 0, loc.file, loc.line);
1562 file_start_location = input_location;
1563 (*debug_hooks->start_source_file) (input_line, input_filename);
1565 java_mark_class_local (current_class);
1567 gen_indirect_dispatch_tables (current_class);
1569 for (method = TYPE_METHODS (current_class);
1570 method != NULL_TREE; method = TREE_CHAIN (method))
1572 JCF *jcf = current_jcf;
1574 if (METHOD_ABSTRACT (method) || METHOD_DUMMY (method))
1577 if (METHOD_NATIVE (method))
1580 int decl_max_locals;
1584 /* We need to compute the DECL_MAX_LOCALS. We need to take
1585 the wide types into account too. */
1586 for (arg = TYPE_ARG_TYPES (TREE_TYPE (method)), decl_max_locals = 0;
1587 arg != end_params_node;
1588 arg = TREE_CHAIN (arg), decl_max_locals += 1)
1590 if (TREE_VALUE (arg) && TYPE_IS_WIDE (TREE_VALUE (arg)))
1591 decl_max_locals += 1;
1593 DECL_MAX_LOCALS (method) = decl_max_locals;
1594 start_java_method (method);
1595 give_name_to_locals (jcf);
1596 *get_stmts () = build_jni_stub (method);
1601 if (DECL_CODE_OFFSET (method) == 0)
1603 current_function_decl = method;
1604 error ("missing Code attribute");
1608 input_location = DECL_SOURCE_LOCATION (TYPE_NAME (current_class));
1609 if (DECL_LINENUMBERS_OFFSET (method))
1614 JCF_SEEK (jcf, DECL_LINENUMBERS_OFFSET (method));
1615 linenumber_count = i = JCF_readu2 (jcf);
1616 linenumber_table = ptr = jcf->read_ptr;
1618 for (ptr += 2; --i >= 0; ptr += 4)
1620 int line = GET_u2 (ptr);
1621 /* Set initial input_line to smallest linenumber.
1622 * Needs to be set before init_function_start. */
1623 if (min_line == 0 || line < min_line)
1627 input_location = linemap_line_start (line_table, min_line, 1);
1631 linenumber_table = NULL;
1632 linenumber_count = 0;
1635 start_java_method (method);
1637 note_instructions (jcf, method);
1639 give_name_to_locals (jcf);
1641 /* Bump up start_label_pc_this_method so we get a unique label number
1642 and reset highest_label_pc_this_method. */
1643 if (highest_label_pc_this_method >= 0)
1645 /* We adjust to the next multiple of 1000. This is just a frill
1646 so the last 3 digits of the label number match the bytecode
1647 offset, which might make debugging marginally more convenient. */
1648 start_label_pc_this_method
1649 = ((((start_label_pc_this_method + highest_label_pc_this_method)
1653 highest_label_pc_this_method = -1;
1656 /* Convert bytecode to trees. */
1657 expand_byte_code (jcf, method);
1664 (*debug_hooks->end_source_file) (LOCATION_LINE (save_location));
1665 input_location = save_location;
1669 add_predefined_file (tree name)
1671 predef_filenames = tree_cons (NULL_TREE, name, predef_filenames);
1675 predefined_filename_p (tree node)
1679 for (iter = predef_filenames; iter != NULL_TREE; iter = TREE_CHAIN (iter))
1681 if (TREE_VALUE (iter) == node)
1687 /* Generate a function that does all static initialization for this
1688 translation unit. */
1691 java_emit_static_constructor (void)
1695 emit_register_classes (&body);
1696 write_resource_constructor (&body);
1700 tree name = get_identifier ("_Jv_global_static_constructor");
1703 = build_decl (input_location, FUNCTION_DECL, name,
1704 build_function_type (void_type_node, void_list_node));
1706 tree resdecl = build_decl (input_location,
1707 RESULT_DECL, NULL_TREE, void_type_node);
1708 DECL_ARTIFICIAL (resdecl) = 1;
1709 DECL_RESULT (decl) = resdecl;
1710 current_function_decl = decl;
1711 allocate_struct_function (decl, false);
1713 TREE_STATIC (decl) = 1;
1714 TREE_USED (decl) = 1;
1715 DECL_ARTIFICIAL (decl) = 1;
1716 DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT (decl) = 1;
1717 DECL_SAVED_TREE (decl) = body;
1718 DECL_UNINLINABLE (decl) = 1;
1720 DECL_INITIAL (decl) = make_node (BLOCK);
1721 TREE_USED (DECL_INITIAL (decl)) = 1;
1723 DECL_STATIC_CONSTRUCTOR (decl) = 1;
1724 java_genericize (decl);
1725 cgraph_finalize_function (decl, false);
1731 java_parse_file (int set_yydebug ATTRIBUTE_UNUSED)
1733 int filename_count = 0;
1734 location_t save_location = input_location;
1735 char *file_list = NULL, *list, *next;
1737 FILE *finput = NULL;
1740 bitmap_obstack_initialize (&bit_obstack);
1741 field_offsets = BITMAP_ALLOC (&bit_obstack);
1743 if (flag_filelist_file)
1746 finput = fopen (main_input_filename, "r");
1748 fatal_error ("can't open %s: %m", input_filename);
1749 list = XNEWVEC (char, avail);
1756 count = next - list;
1757 avail = 2 * (count + avail);
1758 list = XRESIZEVEC (char, list, avail);
1759 next = list + count;
1760 avail = avail - count;
1762 /* Subtract to to guarantee space for final '\0'. */
1763 count = fread (next, 1, avail - 1, finput);
1766 if (! feof (finput))
1767 fatal_error ("error closing %s: %m", input_filename);
1779 list = CONST_CAST (char *, main_input_filename);
1783 for (next = list; ; )
1786 if (flag_filelist_file && ! in_quotes
1787 && (ch == '\n' || ch == '\r' || ch == '\t' || ch == ' '
1788 || ch == '&') /* FIXME */)
1802 if (flag_filelist_file && ch == '"')
1804 in_quotes = ! in_quotes;
1819 /* Exclude .java files. */
1820 if (strlen (list) > 5 && ! strcmp (list + strlen (list) - 5, ".java"))
1826 node = get_identifier (list);
1830 /* Exclude file that we see twice on the command line. */
1832 if (IS_A_COMMAND_LINE_FILENAME_P (node))
1833 duplicate_class_warning (IDENTIFIER_POINTER (node));
1836 tree file_decl = build_decl (input_location,
1837 TRANSLATION_UNIT_DECL, node, NULL);
1838 TREE_CHAIN (file_decl) = current_file_list;
1839 current_file_list = file_decl;
1840 IS_A_COMMAND_LINE_FILENAME_P (node) = 1;
1846 if (file_list != NULL)
1849 if (filename_count == 0)
1850 warning (0, "no input file specified");
1854 const char *resource_filename;
1856 /* Only one resource file may be compiled at a time. */
1857 assert (TREE_CHAIN (current_file_list) == NULL);
1859 resource_filename = IDENTIFIER_POINTER (DECL_NAME (current_file_list));
1860 compile_resource_file (resource_name, resource_filename);
1865 current_jcf = main_jcf;
1866 current_file_list = nreverse (current_file_list);
1867 for (node = current_file_list; node; node = TREE_CHAIN (node))
1869 unsigned char magic_string[4];
1872 tree name = DECL_NAME (node);
1874 const char *filename = IDENTIFIER_POINTER (name);
1876 /* Skip already parsed files */
1877 real_path = lrealpath (filename);
1878 real_file = get_identifier (real_path);
1880 if (HAS_BEEN_ALREADY_PARSED_P (real_file))
1883 /* Close previous descriptor, if any */
1884 if (finput && fclose (finput))
1885 fatal_error ("can't close input file %s: %m", main_input_filename);
1887 finput = fopen (filename, "rb");
1889 fatal_error ("can't open %s: %m", filename);
1891 #ifdef IO_BUFFER_SIZE
1892 setvbuf (finput, xmalloc (IO_BUFFER_SIZE),
1893 _IOFBF, IO_BUFFER_SIZE);
1896 /* Figure what kind of file we're dealing with */
1897 if (fread (magic_string, 1, 4, finput) == 4)
1899 fseek (finput, 0L, SEEK_SET);
1900 magic = GET_u4 (magic_string);
1902 if (magic == 0xcafebabe)
1904 CLASS_FILE_P (node) = 1;
1905 current_jcf = GGC_NEW (JCF);
1906 JCF_ZERO (current_jcf);
1907 current_jcf->read_state = finput;
1908 current_jcf->filbuf = jcf_filbuf_from_stdio;
1909 jcf_parse (current_jcf);
1910 DECL_SOURCE_LOCATION (node) = file_start_location;
1911 TYPE_JCF (current_class) = current_jcf;
1912 if (CLASS_FROM_CURRENTLY_COMPILED_P (current_class))
1914 /* We've already compiled this class. */
1915 duplicate_class_warning (filename);
1918 CLASS_FROM_CURRENTLY_COMPILED_P (current_class) = 1;
1919 TREE_TYPE (node) = current_class;
1921 else if (magic == (JCF_u4)ZIPMAGIC)
1923 main_jcf = GGC_NEW (JCF);
1924 JCF_ZERO (main_jcf);
1925 main_jcf->read_state = finput;
1926 main_jcf->filbuf = jcf_filbuf_from_stdio;
1927 linemap_add (line_table, LC_ENTER, false, filename, 0);
1928 input_location = linemap_line_start (line_table, 0, 1);
1929 if (open_in_zip (main_jcf, filename, NULL, 0) < 0)
1930 fatal_error ("bad zip/jar file %s", filename);
1931 localToFile = SeenZipFiles;
1932 /* Register all the classes defined there. */
1933 process_zip_dir ((FILE *) main_jcf->read_state);
1934 linemap_add (line_table, LC_LEAVE, false, NULL, 0);
1935 parse_zip_file_entries ();
1937 else if (magic == (JCF_u4) ZIPEMPTYMAGIC)
1939 /* Ignore an empty input jar. */
1945 java_push_parser_context ();
1946 java_parser_context_save_global ();
1948 parse_source_file_1 (real_file, filename, finput);
1949 java_parser_context_restore_global ();
1950 java_pop_parser_context (1);
1951 linemap_add (line_table, LC_LEAVE, false, NULL, 0);
1956 for (node = current_file_list; node; node = TREE_CHAIN (node))
1958 input_location = DECL_SOURCE_LOCATION (node);
1959 if (CLASS_FILE_P (node))
1961 /* FIXME: These two flags really should be independent. We
1962 should be able to compile fully binary compatible, but
1963 with flag_verify_invocations on. */
1964 flag_verify_invocations = ! flag_indirect_dispatch;
1965 output_class = current_class = TREE_TYPE (node);
1967 current_jcf = TYPE_JCF (current_class);
1968 layout_class (current_class);
1969 load_inner_classes (current_class);
1970 parse_class_file ();
1971 JCF_FINISH (current_jcf);
1974 input_location = save_location;
1976 bitmap_obstack_release (&bit_obstack);
1979 /* Arrange for any necessary initialization to happen. */
1980 java_emit_static_constructor ();
1981 gcc_assert (global_bindings_p ());
1985 /* Return the name of the class corresponding to the name of the file
1986 in this zip entry. The result is newly allocated using ALLOC. */
1988 compute_class_name (struct ZipDirectory *zdir)
1990 char *class_name_in_zip_dir = ZIPDIR_FILENAME (zdir);
1993 int filename_length = zdir->filename_length;
1995 while (filename_length > 2 && strncmp (class_name_in_zip_dir, "./", 2) == 0)
1997 class_name_in_zip_dir += 2;
1998 filename_length -= 2;
2001 filename_length -= strlen (".class");
2002 class_name = XNEWVEC (char, filename_length + 1);
2003 memcpy (class_name, class_name_in_zip_dir, filename_length);
2004 class_name [filename_length] = '\0';
2006 for (i = 0; i < filename_length; i++)
2007 if (class_name[i] == '/')
2008 class_name[i] = '.';
2013 /* Return 0 if we should skip this entry, 1 if it is a .class file, 2
2014 if it is a property file of some sort. */
2016 classify_zip_file (struct ZipDirectory *zdir)
2018 char *class_name_in_zip_dir = ZIPDIR_FILENAME (zdir);
2020 if (zdir->filename_length > 6
2021 && !strncmp (&class_name_in_zip_dir[zdir->filename_length - 6],
2025 /* For now we drop the manifest, but not other information. */
2026 if (zdir->filename_length == 20
2027 && !strncmp (class_name_in_zip_dir, "META-INF/MANIFEST.MF", 20))
2030 /* Drop directory entries. */
2031 if (zdir->filename_length > 0
2032 && class_name_in_zip_dir[zdir->filename_length - 1] == '/')
2038 /* Process all class entries found in the zip file. */
2040 parse_zip_file_entries (void)
2042 struct ZipDirectory *zdir;
2045 for (i = 0, zdir = (ZipDirectory *)localToFile->central_directory;
2046 i < localToFile->count; i++, zdir = ZIPDIR_NEXT (zdir))
2050 switch (classify_zip_file (zdir))
2057 char *class_name = compute_class_name (zdir);
2058 int previous_alias_set = -1;
2059 klass = lookup_class (get_identifier (class_name));
2061 current_jcf = TYPE_JCF (klass);
2062 output_class = current_class = klass;
2064 /* This is a dummy class, and now we're compiling it for
2066 gcc_assert (! TYPE_DUMMY (klass));
2068 /* This is for a corner case where we have a superclass
2069 but no superclass fields.
2071 This can happen if we earlier failed to lay out this
2072 class because its superclass was still in the process
2073 of being laid out; this occurs when we have recursive
2074 class dependencies via inner classes. We must record
2075 the previous alias set and restore it after laying out
2078 FIXME: this really is a kludge. We should figure out a
2079 way to lay out the class properly before this
2081 if (TYPE_SIZE (klass) && CLASSTYPE_SUPER (klass)
2082 && integer_zerop (TYPE_SIZE (klass)))
2084 TYPE_SIZE (klass) = NULL_TREE;
2085 previous_alias_set = TYPE_ALIAS_SET (klass);
2086 TYPE_ALIAS_SET (klass) = -1;
2089 if (! CLASS_LOADED_P (klass))
2091 if (! CLASS_PARSED_P (klass))
2093 read_zip_member (current_jcf, zdir, localToFile);
2094 jcf_parse (current_jcf);
2096 layout_class (current_class);
2097 load_inner_classes (current_class);
2100 if (previous_alias_set != -1)
2101 TYPE_ALIAS_SET (klass) = previous_alias_set;
2103 if (TYPE_SIZE (current_class) != error_mark_node)
2105 parse_class_file ();
2106 free (current_jcf->buffer); /* No longer necessary */
2107 /* Note: there is a way to free this buffer right after a
2108 class seen in a zip file has been parsed. The idea is the
2109 set its jcf in such a way that buffer will be reallocated
2110 the time the code for the class will be generated. FIXME. */
2117 char *file_name, *class_name_in_zip_dir, *buffer;
2119 file_name = XNEWVEC (char, zdir->filename_length + 1);
2120 class_name_in_zip_dir = ZIPDIR_FILENAME (zdir);
2121 strncpy (file_name, class_name_in_zip_dir, zdir->filename_length);
2122 file_name[zdir->filename_length] = '\0';
2125 jcf->read_state = finput;
2126 jcf->filbuf = jcf_filbuf_from_stdio;
2127 jcf->classname = NULL;
2128 jcf->filename = file_name;
2131 if (read_zip_member (jcf, zdir, localToFile) < 0)
2132 fatal_error ("error while reading %s from zip file", file_name);
2134 buffer = XNEWVEC (char, zdir->filename_length + 1 +
2135 (jcf->buffer_end - jcf->buffer));
2136 strcpy (buffer, file_name);
2137 /* This is not a typo: we overwrite the trailing \0 of the
2138 file name; this is just how the data is laid out. */
2139 memcpy (buffer + zdir->filename_length,
2140 jcf->buffer, jcf->buffer_end - jcf->buffer);
2142 compile_resource_data (file_name, buffer,
2143 jcf->buffer_end - jcf->buffer);
2156 /* Read all the entries of the zip file, creates a class and a JCF. Sets the
2157 jcf up for further processing and link it to the created class. */
2160 process_zip_dir (FILE *finput)
2165 for (i = 0, zdir = (ZipDirectory *)localToFile->central_directory;
2166 i < localToFile->count; i++, zdir = ZIPDIR_NEXT (zdir))
2168 char *class_name, *file_name, *class_name_in_zip_dir;
2172 class_name_in_zip_dir = ZIPDIR_FILENAME (zdir);
2174 /* Here we skip non-class files; we handle them later. */
2175 if (classify_zip_file (zdir) != 1)
2178 class_name = compute_class_name (zdir);
2179 file_name = XNEWVEC (char, zdir->filename_length+1);
2180 jcf = GGC_NEW (JCF);
2183 strncpy (file_name, class_name_in_zip_dir, zdir->filename_length);
2184 file_name [zdir->filename_length] = '\0';
2186 klass = lookup_class (get_identifier (class_name));
2188 if (CLASS_FROM_CURRENTLY_COMPILED_P (klass))
2190 /* We've already compiled this class. */
2191 duplicate_class_warning (file_name);
2194 /* This function is only called when processing a zip file seen
2195 on the command line. */
2196 CLASS_FROM_CURRENTLY_COMPILED_P (klass) = 1;
2198 jcf->read_state = finput;
2199 jcf->filbuf = jcf_filbuf_from_stdio;
2200 jcf->classname = class_name;
2201 jcf->filename = file_name;
2204 TYPE_JCF (klass) = jcf;
2208 #include "gt-java-jcf-parse.h"
2209 #include "gtype-java.h"