1 /* Java(TM) language-specific utility routines.
2 Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
3 2005, 2006, 2007, 2008, 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 /* Hacked by Per Bothner <bothner@cygnus.com> February 1996. */
29 #include "coretypes.h"
33 #include "java-tree.h"
36 #include "langhooks.h"
37 #include "langhooks-def.h"
40 #include "diagnostic.h"
41 #include "tree-inline.h"
42 #include "splay-tree.h"
43 #include "tree-dump.h"
48 static bool java_init (void);
49 static void java_finish (void);
50 static unsigned int java_option_lang_mask (void);
51 static void java_init_options_struct (struct gcc_options *);
52 static void java_init_options (unsigned int, struct cl_decoded_option *);
53 static bool java_post_options (const char **);
55 static bool java_handle_option (size_t, const char *, int, int,
56 const struct cl_option_handlers *);
57 static void put_decl_string (const char *, int);
58 static void put_decl_node (tree, int);
59 static void java_print_error_function (diagnostic_context *, const char *,
61 static int merge_init_test_initialization (void * *, void *);
62 static int inline_init_test_initialization (void * *, void *);
63 static bool java_dump_tree (void *, tree);
64 static void dump_compound_expr (dump_info_p, tree);
65 static bool java_decl_ok_for_sibcall (const_tree);
67 static enum classify_record java_classify_record (tree type);
69 static tree java_eh_personality (void);
71 #ifndef TARGET_OBJECT_SUFFIX
72 # define TARGET_OBJECT_SUFFIX ".o"
75 /* Table of machine-independent attributes. */
76 const struct attribute_spec java_attribute_table[] =
78 { "nonnull", 0, -1, false, true, true,
80 { NULL, 0, 0, false, false, false, NULL }
83 /* Used to avoid printing error messages with bogus function
84 prototypes. Starts out false. */
85 static bool inhibit_error_function_printing;
87 const char *resource_name;
89 /* When nonzero, -Wall was turned on. */
92 /* When nonzero, report use of deprecated classes, methods, or fields. */
93 int flag_deprecated = 1;
95 /* When zero, don't optimize static class initialization. This flag shouldn't
96 be tested alone, use STATIC_CLASS_INITIALIZATION_OPTIMIZATION_P instead. */
97 /* FIXME: Make this work with gimplify. */
98 /* int flag_optimize_sci = 0; */
100 /* Don't attempt to verify invocations. */
101 int flag_verify_invocations = 0;
103 /* When nonzero, print extra version information. */
104 static int v_flag = 0;
108 /* Variable controlling how dependency tracking is enabled in
110 static int dependency_tracking = 0;
112 /* Flag values for DEPENDENCY_TRACKING. */
113 #define DEPEND_SET_FILE 1
114 #define DEPEND_ENABLE 2
115 #define DEPEND_TARGET_SET 4
116 #define DEPEND_FILE_ALREADY_SET 8
118 struct GTY(()) language_function {
122 #undef LANG_HOOKS_NAME
123 #define LANG_HOOKS_NAME "GNU Java"
124 #undef LANG_HOOKS_INIT
125 #define LANG_HOOKS_INIT java_init
126 #undef LANG_HOOKS_FINISH
127 #define LANG_HOOKS_FINISH java_finish
128 #undef LANG_HOOKS_OPTION_LANG_MASK
129 #define LANG_HOOKS_OPTION_LANG_MASK java_option_lang_mask
130 #undef LANG_HOOKS_INIT_OPTIONS_STRUCT
131 #define LANG_HOOKS_INIT_OPTIONS_STRUCT java_init_options_struct
132 #undef LANG_HOOKS_INIT_OPTIONS
133 #define LANG_HOOKS_INIT_OPTIONS java_init_options
134 #undef LANG_HOOKS_HANDLE_OPTION
135 #define LANG_HOOKS_HANDLE_OPTION java_handle_option
136 #undef LANG_HOOKS_POST_OPTIONS
137 #define LANG_HOOKS_POST_OPTIONS java_post_options
138 #undef LANG_HOOKS_PARSE_FILE
139 #define LANG_HOOKS_PARSE_FILE java_parse_file
140 #undef LANG_HOOKS_DUP_LANG_SPECIFIC_DECL
141 #define LANG_HOOKS_DUP_LANG_SPECIFIC_DECL java_dup_lang_specific_decl
142 #undef LANG_HOOKS_DECL_PRINTABLE_NAME
143 #define LANG_HOOKS_DECL_PRINTABLE_NAME lang_printable_name
144 #undef LANG_HOOKS_PRINT_ERROR_FUNCTION
145 #define LANG_HOOKS_PRINT_ERROR_FUNCTION java_print_error_function
146 #undef LANG_HOOKS_WRITE_GLOBALS
147 #define LANG_HOOKS_WRITE_GLOBALS java_write_globals
149 #undef LANG_HOOKS_TYPE_FOR_MODE
150 #define LANG_HOOKS_TYPE_FOR_MODE java_type_for_mode
151 #undef LANG_HOOKS_TYPE_FOR_SIZE
152 #define LANG_HOOKS_TYPE_FOR_SIZE java_type_for_size
153 #undef LANG_HOOKS_CLASSIFY_RECORD
154 #define LANG_HOOKS_CLASSIFY_RECORD java_classify_record
156 #undef LANG_HOOKS_TREE_DUMP_DUMP_TREE_FN
157 #define LANG_HOOKS_TREE_DUMP_DUMP_TREE_FN java_dump_tree
159 #undef LANG_HOOKS_GIMPLIFY_EXPR
160 #define LANG_HOOKS_GIMPLIFY_EXPR java_gimplify_expr
162 #undef LANG_HOOKS_DECL_OK_FOR_SIBCALL
163 #define LANG_HOOKS_DECL_OK_FOR_SIBCALL java_decl_ok_for_sibcall
165 #undef LANG_HOOKS_SET_DECL_ASSEMBLER_NAME
166 #define LANG_HOOKS_SET_DECL_ASSEMBLER_NAME java_mangle_decl
168 #undef LANG_HOOKS_ATTRIBUTE_TABLE
169 #define LANG_HOOKS_ATTRIBUTE_TABLE java_attribute_table
171 #undef LANG_HOOKS_EH_PERSONALITY
172 #define LANG_HOOKS_EH_PERSONALITY java_eh_personality
174 #undef LANG_HOOKS_EH_USE_CXA_END_CLEANUP
175 #define LANG_HOOKS_EH_USE_CXA_END_CLEANUP true
177 /* Each front end provides its own. */
178 struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER;
181 * process java-specific compiler command-line options
182 * return false, but do not complain if the option is not recognized.
185 java_handle_option (size_t scode, const char *arg, int value,
186 int kind ATTRIBUTE_UNUSED,
187 const struct cl_option_handlers *handlers ATTRIBUTE_UNUSED)
189 enum opt_code code = (enum opt_code) scode;
194 jcf_path_include_arg (arg);
198 jcf_dependency_init (1);
199 dependency_tracking |= DEPEND_ENABLE;
203 jcf_dependency_init (1);
204 dependency_tracking |= DEPEND_SET_FILE | DEPEND_ENABLE;
208 jcf_dependency_set_dep_file (arg);
209 dependency_tracking |= DEPEND_FILE_ALREADY_SET;
213 jcf_dependency_init (0);
214 dependency_tracking |= DEPEND_ENABLE;
218 jcf_dependency_init (0);
219 dependency_tracking |= DEPEND_SET_FILE | DEPEND_ENABLE;
223 jcf_dependency_print_dummies ();
227 jcf_dependency_set_target (arg);
228 dependency_tracking |= DEPEND_TARGET_SET;
233 /* When -Wall given, enable -Wunused. We do this because the C
234 compiler does it, and people expect it. */
238 case OPT_fenable_assertions_:
239 add_enable_assert (arg, value);
242 case OPT_fenable_assertions:
243 add_enable_assert ("", value);
246 case OPT_fdisable_assertions_:
247 add_enable_assert (arg, !value);
250 case OPT_fdisable_assertions:
251 add_enable_assert ("", !value);
254 case OPT_fassume_compiled_:
255 add_assume_compiled (arg, !value);
258 case OPT_fassume_compiled:
259 add_assume_compiled ("", !value);
262 case OPT_fbootclasspath_:
263 jcf_path_bootclasspath_arg (arg);
266 case OPT_faux_classpath:
267 case OPT_fclasspath_:
268 jcf_path_classpath_arg (arg);
271 case OPT_fcompile_resource_:
276 if (!dump_switch_p (arg))
285 jcf_path_extdirs_arg (arg);
288 case OPT_foutput_class_dir_:
289 /* FIXME: remove; this is handled by ecj1 now. */
296 case OPT_fsource_filename_:
297 java_read_sourcefilenames (arg);
301 if (cl_options[code].flags & CL_Java)
309 /* Global open file. */
315 /* FIXME: Indirect dispatch isn't yet compatible with static class
316 init optimization. */
317 if (flag_indirect_dispatch)
318 always_initialize_class_p = true;
320 if (!flag_indirect_dispatch)
321 flag_indirect_classes = false;
323 jcf_path_seal (v_flag);
325 java_init_decl_processing ();
327 using_eh_for_cleanups ();
335 jcf_dependency_write ();
338 /* Buffer used by lang_printable_name. */
339 static char *decl_buf = NULL;
341 /* Allocated size of decl_buf. */
342 static int decl_buflen = 0;
344 /* Length of used part of decl_buf; position for next character. */
345 static int decl_bufpos = 0;
347 /* Append the string STR to decl_buf.
348 It length is given by LEN; -1 means the string is nul-terminated. */
351 put_decl_string (const char *str, int len)
355 if (decl_bufpos + len >= decl_buflen)
357 if (decl_buf == NULL)
359 decl_buflen = len + 100;
360 decl_buf = XNEWVEC (char, decl_buflen);
365 decl_buf = XRESIZEVAR (char, decl_buf, decl_buflen);
368 strcpy (decl_buf + decl_bufpos, str);
372 /* Append to decl_buf a printable name for NODE.
373 Depending on VERBOSITY, more information about NODE
374 is printed. Read the comments of decl_printable_name in
375 langhooks.h for more. */
378 put_decl_node (tree node, int verbosity)
381 if (TREE_CODE (node) == POINTER_TYPE)
383 node = TREE_TYPE (node);
386 if (DECL_P (node) && DECL_NAME (node) != NULL_TREE)
388 if (TREE_CODE (node) == FUNCTION_DECL)
390 if (verbosity == 0 && DECL_NAME (node))
391 /* We have been instructed to just print the bare name
394 put_decl_node (DECL_NAME (node), 0);
398 /* We want to print the type the DECL belongs to. We don't do
399 that when we handle constructors. */
400 if (! DECL_CONSTRUCTOR_P (node)
401 && ! DECL_ARTIFICIAL (node) && DECL_CONTEXT (node)
402 /* We want to print qualified DECL names only
403 if verbosity is higher than 1. */
406 put_decl_node (TYPE_NAME (DECL_CONTEXT (node)),
408 put_decl_string (".", 1);
410 if (! DECL_CONSTRUCTOR_P (node))
411 put_decl_node (DECL_NAME (node), verbosity);
412 if (TREE_TYPE (node) != NULL_TREE
413 /* We want to print function parameters only if verbosity
418 tree args = TYPE_ARG_TYPES (TREE_TYPE (node));
419 if (TREE_CODE (TREE_TYPE (node)) == METHOD_TYPE)
420 args = TREE_CHAIN (args);
421 put_decl_string ("(", 1);
422 for ( ; args != end_params_node; args = TREE_CHAIN (args), i++)
425 put_decl_string (",", 1);
426 put_decl_node (TREE_VALUE (args), verbosity);
428 put_decl_string (")", 1);
432 put_decl_node (DECL_NAME (node), verbosity);
434 else if (TYPE_P (node) && TYPE_NAME (node) != NULL_TREE)
436 if (TREE_CODE (node) == RECORD_TYPE && TYPE_ARRAY_P (node)
437 /* Print detailed array information only if verbosity is higher
441 put_decl_node (TYPE_ARRAY_ELEMENT (node), verbosity);
442 put_decl_string("[]", 2);
444 else if (node == promoted_byte_type_node)
445 put_decl_string ("byte", 4);
446 else if (node == promoted_short_type_node)
447 put_decl_string ("short", 5);
448 else if (node == promoted_char_type_node)
449 put_decl_string ("char", 4);
450 else if (node == promoted_boolean_type_node)
451 put_decl_string ("boolean", 7);
452 else if (node == void_type_node && was_pointer)
453 put_decl_string ("null", 4);
455 put_decl_node (TYPE_NAME (node), verbosity);
457 else if (TREE_CODE (node) == IDENTIFIER_NODE)
458 put_decl_string (IDENTIFIER_POINTER (node), IDENTIFIER_LENGTH (node));
460 put_decl_string ("<unknown>", -1);
463 /* Return a user-friendly name for DECL.
464 The resulting string is only valid until the next call.
465 The value of the hook decl_printable_name is this function,
466 which is also called directly by java_print_error_function. */
469 lang_printable_name (tree decl, int v)
472 put_decl_node (decl, v);
473 put_decl_string ("", 1);
477 /* Print on stderr the current class and method context. This function
478 is the value of the hook print_error_function. */
480 static GTY(()) tree last_error_function_context;
481 static GTY(()) tree last_error_function;
483 java_print_error_function (diagnostic_context *context ATTRIBUTE_UNUSED,
485 diagnostic_info *diagnostic ATTRIBUTE_UNUSED)
487 /* Don't print error messages with bogus function prototypes. */
488 if (inhibit_error_function_printing)
491 if (current_function_decl != NULL
492 && DECL_CONTEXT (current_function_decl) != last_error_function_context)
495 fprintf (stderr, "%s: ", file);
497 last_error_function_context = DECL_CONTEXT (current_function_decl);
498 fprintf (stderr, "In class '%s':\n",
499 lang_printable_name (last_error_function_context, 0));
501 if (last_error_function != current_function_decl)
504 fprintf (stderr, "%s: ", file);
506 if (current_function_decl == NULL)
507 fprintf (stderr, "At top level:\n");
510 const char *name = lang_printable_name (current_function_decl, 2);
511 fprintf (stderr, "In %s '%s':\n",
512 (DECL_CONSTRUCTOR_P (current_function_decl) ? "constructor"
517 last_error_function = current_function_decl;
522 /* Called to install the PRINT_ERROR_FUNCTION hook differently
523 according to LEVEL. LEVEL is 1 during early parsing, when function
524 prototypes aren't fully resolved. java_print_error_function is set
525 so it doesn't print incomplete function prototypes. When LEVEL is
526 2, function prototypes are fully resolved and can be printed when
530 lang_init_source (int level)
532 inhibit_error_function_printing = (level == 1);
536 java_option_lang_mask (void)
541 /* Initialize options structure OPTS. */
544 java_init_options_struct (struct gcc_options *opts)
546 opts->x_flag_bounds_check = 1;
547 opts->x_flag_exceptions = 1;
548 opts->x_flag_non_call_exceptions = 1;
550 /* In Java floating point operations never trap. */
551 opts->x_flag_trapping_math = 0;
553 /* In Java arithmetic overflow always wraps around. */
554 opts->x_flag_wrapv = 1;
556 /* Java requires left-to-right evaluation of subexpressions. */
557 opts->x_flag_evaluation_order = 1;
561 java_init_options (unsigned int decoded_options_count ATTRIBUTE_UNUSED,
562 struct cl_decoded_option *decoded_options ATTRIBUTE_UNUSED)
567 /* Post-switch processing. */
569 java_post_options (const char **pfilename)
571 const char *filename = *pfilename;
573 /* Excess precision other than "fast" requires front-end
575 if (flag_excess_precision_cmdline == EXCESS_PRECISION_STANDARD
576 && TARGET_FLT_EVAL_METHOD_NON_DEFAULT)
577 sorry ("-fexcess-precision=standard for Java");
578 flag_excess_precision_cmdline = EXCESS_PRECISION_FAST;
580 /* An absolute requirement: if we're not using indirect dispatch, we
581 must always verify everything. */
582 if (! flag_indirect_dispatch)
583 flag_verify_invocations = true;
585 if (flag_reduced_reflection)
587 if (flag_indirect_dispatch)
588 error ("-findirect-dispatch is incompatible "
589 "with -freduced-reflection");
591 error ("-fjni is incompatible with -freduced-reflection");
594 /* Open input file. */
596 if (filename == 0 || !strcmp (filename, "-"))
601 if (dependency_tracking)
602 error ("can%'t do dependency tracking with input from stdin");
606 if (dependency_tracking)
610 /* If the target is set and the output filename is set, then
611 there's no processing to do here. Otherwise we must
612 compute one or the other. */
613 if (! ((dependency_tracking & DEPEND_TARGET_SET)
614 && (dependency_tracking & DEPEND_FILE_ALREADY_SET)))
616 dot = strrchr (filename, '.');
618 error ("couldn%'t determine target name for dependency tracking");
621 char *buf = XNEWVEC (char, dot - filename +
622 3 + sizeof (TARGET_OBJECT_SUFFIX));
623 strncpy (buf, filename, dot - filename);
625 /* If emitting class files, we might have multiple
626 targets. The class generation code takes care of
627 registering them. Otherwise we compute the
629 if ((dependency_tracking & DEPEND_TARGET_SET))
633 strcpy (buf + (dot - filename), TARGET_OBJECT_SUFFIX);
634 jcf_dependency_set_target (buf);
637 if ((dependency_tracking & DEPEND_FILE_ALREADY_SET))
639 else if ((dependency_tracking & DEPEND_SET_FILE))
641 strcpy (buf + (dot - filename), ".d");
642 jcf_dependency_set_dep_file (buf);
645 jcf_dependency_set_dep_file ("-");
652 linemap_add (line_table, LC_ENTER, false, filename, 0);
653 linemap_add (line_table, LC_RENAME, false, "<built-in>", 0);
655 /* Initialize the compiler back end. */
659 /* Return either DECL or its known constant value (if it has one). */
662 decl_constant_value (tree decl)
664 if (/* Don't change a variable array bound or initial value to a constant
665 in a place where a variable is invalid. */
666 current_function_decl != 0
667 && ! TREE_THIS_VOLATILE (decl)
668 && TREE_READONLY (decl)
669 && DECL_INITIAL (decl) != 0
670 && TREE_CODE (DECL_INITIAL (decl)) != ERROR_MARK
671 /* This is invalid if initial value is not constant.
672 If it has either a function call, a memory reference,
673 or a variable, then re-evaluating it could give different results. */
674 && TREE_CONSTANT (DECL_INITIAL (decl))
675 /* Check for cases where this is sub-optimal, even though valid. */
676 && TREE_CODE (DECL_INITIAL (decl)) != CONSTRUCTOR)
677 return DECL_INITIAL (decl);
681 /* Every call to a static constructor has an associated boolean
682 variable which is in the outermost scope of the calling method.
683 This variable is used to avoid multiple calls to the static
684 constructor for each class.
686 It looks something like this:
690 boolean dummy = OtherClass.is_initialized;
695 OtherClass.initialize();
697 ... use OtherClass.data ...
700 Each of these boolean variables has an entry in the
701 DECL_FUNCTION_INIT_TEST_TABLE of a method. When inlining a method
702 we must merge the DECL_FUNCTION_INIT_TEST_TABLE from the function
703 being inlined and create the boolean variables in the outermost
704 scope of the method being inlined into. */
706 /* Create a mapping from a boolean variable in a method being inlined
707 to one in the scope of the method being inlined into. */
710 merge_init_test_initialization (void **entry, void *x)
712 struct treetreehash_entry *ite = (struct treetreehash_entry *) *entry;
713 splay_tree decl_map = (splay_tree)x;
715 tree *init_test_decl;
717 /* See if we have remapped this declaration. If we haven't there's
718 a bug in the inliner. */
719 n = splay_tree_lookup (decl_map, (splay_tree_key) ite->value);
722 /* Create a new entry for the class and its remapped boolean
723 variable. If we already have a mapping for this class we've
724 already initialized it, so don't overwrite the value. */
725 init_test_decl = java_treetreehash_new
726 (DECL_FUNCTION_INIT_TEST_TABLE (current_function_decl), ite->key);
727 if (!*init_test_decl)
728 *init_test_decl = (tree)n->value;
730 /* This fixes a weird case.
732 The front end assumes that once we have called a method that
733 initializes some class, we can assume the class is initialized. It
734 does this by setting the DECL_INITIAL of the init_test_decl for that
735 class, and no initializations are emitted for that class.
737 However, what if the method that is supposed to do the initialization
738 is itself inlined in the caller? When expanding the called method
739 we'll assume that the class initialization has already been done,
740 because the DECL_INITIAL of the init_test_decl is set.
742 To fix this we remove the DECL_INITIAL (in the caller scope) of all
743 the init_test_decls corresponding to classes initialized by the
744 inlined method. This makes the caller no longer assume that the
745 method being inlined does any class initializations. */
746 DECL_INITIAL (*init_test_decl) = NULL;
751 /* Merge the DECL_FUNCTION_INIT_TEST_TABLE from the function we're
755 java_inlining_merge_static_initializers (tree fn, void *decl_map)
758 (DECL_FUNCTION_INIT_TEST_TABLE (fn),
759 merge_init_test_initialization, decl_map);
762 /* Lookup a DECL_FUNCTION_INIT_TEST_TABLE entry in the method we're
763 inlining into. If we already have a corresponding entry in that
764 class we don't need to create another one, so we create a mapping
765 from the variable in the inlined class to the corresponding
769 inline_init_test_initialization (void **entry, void *x)
771 struct treetreehash_entry *ite = (struct treetreehash_entry *) *entry;
772 splay_tree decl_map = (splay_tree)x;
774 tree h = java_treetreehash_find
775 (DECL_FUNCTION_INIT_TEST_TABLE (current_function_decl), ite->key);
778 splay_tree_insert (decl_map,
779 (splay_tree_key) ite->value,
780 (splay_tree_value) h);
784 /* Look up the boolean variables in the DECL_FUNCTION_INIT_TEST_TABLE
785 of a method being inlined. For each hone, if we already have a
786 variable associated with the same class in the method being inlined
787 into, create a new mapping for it. */
790 java_inlining_map_static_initializers (tree fn, void *decl_map)
793 (DECL_FUNCTION_INIT_TEST_TABLE (fn),
794 inline_init_test_initialization, decl_map);
797 /* Avoid voluminous output for deep recursion of compound exprs. */
800 dump_compound_expr (dump_info_p di, tree t)
806 switch (TREE_CODE (TREE_OPERAND (t, i)))
809 dump_compound_expr (di, TREE_OPERAND (t, i));
813 dump_child ("expr", TREE_OPERAND (t, i));
819 java_dump_tree (void *dump_info, tree t)
822 dump_info_p di = (dump_info_p) dump_info;
824 /* Figure out what kind of node this is. */
825 code = TREE_CODE (t);
830 dump_child ("args", DECL_ARGUMENTS (t));
831 if (DECL_EXTERNAL (t))
832 dump_string (di, "undefined");
834 dump_string (di, "extern");
836 dump_string (di, "static");
837 if (DECL_LANG_SPECIFIC (t) && !dump_flag (di, TDF_SLIM, t))
838 dump_child ("inline body", DECL_SAVED_TREE (t));
842 dump_child ("expr", TREE_OPERAND (t, 0));
846 dump_child ("goto", TREE_OPERAND (t, 0));
850 dump_child ("label", TREE_OPERAND (t, 0));
854 if (BLOCK_EXPR_BODY (t))
856 tree local = BLOCK_VARS (t);
859 tree next = TREE_CHAIN (local);
860 dump_child ("var", local);
865 tree block = BLOCK_EXPR_BODY (t);
866 dump_child ("body", block);
867 block = TREE_CHAIN (block);
873 if (!dump_flag (di, TDF_SLIM, t))
875 dump_compound_expr (di, t);
884 /* Java calls can't, in general, be sibcalls because we need an
885 accurate stack trace in order to guarantee correct operation of
886 methods such as Class.forName(String) and
887 SecurityManager.getClassContext(). */
890 java_decl_ok_for_sibcall (const_tree decl)
892 return (decl != NULL && DECL_CONTEXT (decl) == output_class
893 && !DECL_UNINLINABLE (decl));
896 static enum classify_record
897 java_classify_record (tree type)
899 if (! CLASS_P (type))
900 return RECORD_IS_STRUCT;
902 if (CLASS_INTERFACE (TYPE_NAME (type)))
903 return RECORD_IS_INTERFACE;
905 return RECORD_IS_CLASS;
908 static GTY(()) tree java_eh_personality_decl;
911 java_eh_personality (void)
913 if (!java_eh_personality_decl)
914 java_eh_personality_decl = build_personality_function ("gcj");
915 return java_eh_personality_decl;
918 #include "gt-java-lang.h"