1 /* Output dbx-format symbol table information from GNU compiler.
2 Copyright (C) 1987-2015 Free Software Foundation, Inc.
4 This file is part of GCC.
6 GCC is free software; you can redistribute it and/or modify it under
7 the terms of the GNU General Public License as published by the Free
8 Software Foundation; either version 3, or (at your option) any later
11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING3. If not see
18 <http://www.gnu.org/licenses/>. */
21 /* Output dbx-format symbol table data.
22 This consists of many symbol table entries, each of them
23 a .stabs assembler pseudo-op with four operands:
24 a "name" which is really a description of one symbol and its type,
25 a "code", which is a symbol defined in stab.h whose name starts with N_,
26 an unused operand always 0,
27 and a "value" which is an address or an offset.
28 The name is enclosed in doublequote characters.
30 Each function, variable, typedef, and structure tag
31 has a symbol table entry to define it.
32 The beginning and end of each level of name scoping within
33 a function are also marked by special symbol table entries.
35 The "name" consists of the symbol name, a colon, a kind-of-symbol letter,
36 and a data type number. The data type number may be followed by
37 "=" and a type definition; normally this will happen the first time
38 the type number is mentioned. The type definition may refer to
39 other types by number, and those type numbers may be followed
40 by "=" and nested definitions.
42 This can make the "name" quite long.
43 When a name is more than 80 characters, we split the .stabs pseudo-op
44 into two .stabs pseudo-ops, both sharing the same "code" and "value".
45 The first one is marked as continued with a double-backslash at the
48 The kind-of-symbol letter distinguished function names from global
49 variables from file-scope variables from parameters from auto
50 variables in memory from typedef names from register variables.
53 The "code" is mostly redundant with the kind-of-symbol letter
54 that goes in the "name", but not entirely: for symbols located
55 in static storage, the "code" says which segment the address is in,
56 which controls how it is relocated.
58 The "value" for a symbol in static storage
59 is the core address of the symbol (actually, the assembler
60 label for the symbol). For a symbol located in a stack slot
61 it is the stack offset; for one in a register, the register number.
62 For a typedef symbol, it is zero.
64 If DEBUG_SYMS_TEXT is defined, all debugging symbols must be
65 output while in the text section.
67 For more on data type definitions, see `dbxout_type'. */
71 #include "coretypes.h"
76 #include "double-int.h"
83 #include "fold-const.h"
85 #include "stor-layout.h"
89 #include "insn-config.h"
93 #include "diagnostic-core.h"
99 #include "hard-reg-set.h"
100 #include "function.h"
102 #include "common/common-target.h"
103 #include "langhooks.h"
105 #include "statistics.h"
107 #include "fixed-value.h"
112 #include "emit-rtl.h"
115 #include "hash-map.h"
117 #include "plugin-api.h"
120 #include "stringpool.h"
122 #ifdef XCOFF_DEBUGGING_INFO
123 #include "xcoffout.h"
127 # ifdef XCOFF_DEBUGGING_INFO
128 # define ASM_STABS_OP "\t.stabx\t"
130 # define ASM_STABS_OP "\t.stabs\t"
135 #define ASM_STABN_OP "\t.stabn\t"
139 #define ASM_STABD_OP "\t.stabd\t"
142 #ifndef DBX_TYPE_DECL_STABS_CODE
143 #define DBX_TYPE_DECL_STABS_CODE N_LSYM
146 #ifndef DBX_STATIC_CONST_VAR_CODE
147 #define DBX_STATIC_CONST_VAR_CODE N_FUN
150 #ifndef DBX_REGPARM_STABS_CODE
151 #define DBX_REGPARM_STABS_CODE N_RSYM
154 #ifndef DBX_REGPARM_STABS_LETTER
155 #define DBX_REGPARM_STABS_LETTER 'P'
158 #ifndef NO_DBX_FUNCTION_END
159 #define NO_DBX_FUNCTION_END 0
162 #ifndef NO_DBX_BNSYM_ENSYM
163 #define NO_DBX_BNSYM_ENSYM 0
166 #ifndef NO_DBX_MAIN_SOURCE_DIRECTORY
167 #define NO_DBX_MAIN_SOURCE_DIRECTORY 0
170 #ifndef DBX_BLOCKS_FUNCTION_RELATIVE
171 #define DBX_BLOCKS_FUNCTION_RELATIVE 0
174 #ifndef DBX_LINES_FUNCTION_RELATIVE
175 #define DBX_LINES_FUNCTION_RELATIVE 0
178 #ifndef DBX_CONTIN_LENGTH
179 #define DBX_CONTIN_LENGTH 80
182 #ifndef DBX_CONTIN_CHAR
183 #define DBX_CONTIN_CHAR '\\'
186 enum typestatus
{TYPE_UNSEEN
, TYPE_XREF
, TYPE_DEFINED
};
188 /* Structure recording information about a C data type.
189 The status element says whether we have yet output
190 the definition of the type. TYPE_XREF says we have
191 output it as a cross-reference only.
192 The file_number and type_number elements are used if DBX_USE_BINCL
195 struct GTY(()) typeinfo
{
196 enum typestatus status
;
201 /* Vector recording information about C data types.
202 When we first notice a data type (a tree node),
203 we assign it a number using next_type_number.
204 That is its index in this vector. */
206 static GTY ((length ("typevec_len"))) struct typeinfo
*typevec
;
208 /* Number of elements of space allocated in `typevec'. */
210 static GTY(()) int typevec_len
;
212 /* In dbx output, each type gets a unique number.
213 This is the number for the next type output.
214 The number, once assigned, is in the TYPE_SYMTAB_ADDRESS field. */
216 static GTY(()) int next_type_number
;
218 /* The C front end may call dbxout_symbol before dbxout_init runs.
219 We save all such decls in this list and output them when we get
222 static GTY(()) tree preinit_symbols
;
224 enum binclstatus
{BINCL_NOT_REQUIRED
, BINCL_PENDING
, BINCL_PROCESSED
};
226 /* When using N_BINCL in dbx output, each type number is actually a
227 pair of the file number and the type number within the file.
228 This is a stack of input files. */
232 struct dbx_file
*next
;
234 int next_type_number
;
235 enum binclstatus bincl_status
; /* Keep track of lazy bincl. */
236 const char *pending_bincl_name
; /* Name of bincl. */
237 struct dbx_file
*prev
; /* Chain to traverse all pending bincls. */
240 /* This is the top of the stack.
242 This is not saved for PCH, because restoring a PCH should not change it.
243 next_file_number does have to be saved, because the PCH may use some
244 file numbers; however, just before restoring a PCH, next_file_number
245 should always be 0 because we should not have needed any file numbers
248 #if (defined (DBX_DEBUGGING_INFO) || defined (XCOFF_DEBUGGING_INFO)) \
249 && defined (DBX_USE_BINCL)
250 static struct dbx_file
*current_file
;
253 /* This is the next file number to use. */
255 static GTY(()) int next_file_number
;
257 /* A counter for dbxout_function_end. */
259 static GTY(()) int scope_labelno
;
261 /* A counter for dbxout_source_line. */
263 static GTY(()) int dbxout_source_line_counter
;
265 /* Number for the next N_SOL filename stabs label. The number 0 is reserved
266 for the N_SO filename stabs label. */
268 static GTY(()) int source_label_number
= 1;
270 /* Last source file name mentioned in a NOTE insn. */
272 static GTY(()) const char *lastfile
;
274 /* Used by PCH machinery to detect if 'lastfile' should be reset to
276 static GTY(()) int lastfile_is_base
;
278 /* Typical USG systems don't have stab.h, and they also have
279 no use for DBX-format debugging info. */
281 #if defined (DBX_DEBUGGING_INFO) || defined (XCOFF_DEBUGGING_INFO)
284 /* If zero then there is no pending BINCL. */
285 static int pending_bincls
= 0;
288 /* The original input file name. */
289 static const char *base_input_file
;
291 #ifdef DEBUG_SYMS_TEXT
292 #define FORCE_TEXT switch_to_section (current_function_section ())
299 /* 1 if PARM is passed to this function in memory. */
301 #define PARM_PASSED_IN_MEMORY(PARM) \
302 (MEM_P (DECL_INCOMING_RTL (PARM)))
304 /* A C expression for the integer offset value of an automatic variable
305 (N_LSYM) having address X (an RTX). */
306 #ifndef DEBUGGER_AUTO_OFFSET
307 #define DEBUGGER_AUTO_OFFSET(X) \
308 (GET_CODE (X) == PLUS ? INTVAL (XEXP (X, 1)) : 0)
311 /* A C expression for the integer offset value of an argument (N_PSYM)
312 having address X (an RTX). The nominal offset is OFFSET.
313 Note that we use OFFSET + 0 here to avoid the self-assign warning
314 when the macro is called in a context like
315 number = DEBUGGER_ARG_OFFSET(number, X) */
316 #ifndef DEBUGGER_ARG_OFFSET
317 #define DEBUGGER_ARG_OFFSET(OFFSET, X) (OFFSET + 0)
320 /* This obstack holds the stab string currently being constructed. We
321 build it up here, then write it out, so we can split long lines up
322 properly (see dbxout_finish_complex_stabs). */
323 static struct obstack stabstr_ob
;
324 static size_t stabstr_last_contin_point
;
327 static void emit_bincl_stab (const char *c
);
328 static void emit_pending_bincls (void);
330 static inline void emit_pending_bincls_if_required (void);
332 static void dbxout_init (const char *);
334 static void dbxout_finish (const char *);
335 static void dbxout_start_source_file (unsigned, const char *);
336 static void dbxout_end_source_file (unsigned);
337 static void dbxout_typedefs (tree
);
338 static void dbxout_type_index (tree
);
339 static void dbxout_args (tree
);
340 static void dbxout_type_fields (tree
);
341 static void dbxout_type_method_1 (tree
);
342 static void dbxout_type_methods (tree
);
343 static void dbxout_range_type (tree
, tree
, tree
);
344 static void dbxout_type (tree
, int);
345 static bool print_int_cst_bounds_in_octal_p (tree
, tree
, tree
);
346 static bool is_fortran (void);
347 static void dbxout_type_name (tree
);
348 static void dbxout_class_name_qualifiers (tree
);
349 static int dbxout_symbol_location (tree
, tree
, const char *, rtx
);
350 static void dbxout_symbol_name (tree
, const char *, int);
351 static void dbxout_common_name (tree
, const char *, stab_code_type
);
352 static const char *dbxout_common_check (tree
, int *);
353 static void dbxout_global_decl (tree
);
354 static void dbxout_type_decl (tree
, int);
355 static void dbxout_handle_pch (unsigned);
356 static void debug_free_queue (void);
358 /* The debug hooks structure. */
359 #if defined (DBX_DEBUGGING_INFO)
361 static void dbxout_source_line (unsigned int, const char *, int, bool);
362 static void dbxout_begin_prologue (unsigned int, const char *);
363 static void dbxout_source_file (const char *);
364 static void dbxout_function_end (tree
);
365 static void dbxout_begin_function (tree
);
366 static void dbxout_begin_block (unsigned, unsigned);
367 static void dbxout_end_block (unsigned, unsigned);
368 static void dbxout_function_decl (tree
);
370 const struct gcc_debug_hooks dbx_debug_hooks
=
375 debug_nothing_int_charstar
,
376 debug_nothing_int_charstar
,
377 dbxout_start_source_file
,
378 dbxout_end_source_file
,
381 debug_true_const_tree
, /* ignore_block */
382 dbxout_source_line
, /* source_line */
383 dbxout_begin_prologue
, /* begin_prologue */
384 debug_nothing_int_charstar
, /* end_prologue */
385 debug_nothing_int_charstar
, /* begin_epilogue */
386 debug_nothing_int_charstar
, /* end_epilogue */
387 #ifdef DBX_FUNCTION_FIRST
388 dbxout_begin_function
,
390 debug_nothing_tree
, /* begin_function */
392 debug_nothing_int
, /* end_function */
393 debug_nothing_tree
, /* register_main_translation_unit */
394 dbxout_function_decl
,
395 dbxout_global_decl
, /* global_decl */
396 dbxout_type_decl
, /* type_decl */
397 debug_nothing_tree_tree_tree_bool
, /* imported_module_or_decl */
398 debug_nothing_tree
, /* deferred_inline_function */
399 debug_nothing_tree
, /* outlining_inline_function */
400 debug_nothing_rtx_code_label
, /* label */
401 dbxout_handle_pch
, /* handle_pch */
402 debug_nothing_rtx_insn
, /* var_location */
403 debug_nothing_void
, /* switch_text_section */
404 debug_nothing_tree_tree
, /* set_name */
405 0, /* start_end_main_source_file */
406 TYPE_SYMTAB_IS_ADDRESS
/* tree_type_symtab_field */
408 #endif /* DBX_DEBUGGING_INFO */
410 #if defined (XCOFF_DEBUGGING_INFO)
411 const struct gcc_debug_hooks xcoff_debug_hooks
=
416 debug_nothing_int_charstar
,
417 debug_nothing_int_charstar
,
418 dbxout_start_source_file
,
419 dbxout_end_source_file
,
420 xcoffout_begin_block
,
422 debug_true_const_tree
, /* ignore_block */
423 xcoffout_source_line
,
424 xcoffout_begin_prologue
, /* begin_prologue */
425 debug_nothing_int_charstar
, /* end_prologue */
426 debug_nothing_int_charstar
, /* begin_epilogue */
427 xcoffout_end_epilogue
,
428 debug_nothing_tree
, /* begin_function */
429 xcoffout_end_function
,
430 debug_nothing_tree
, /* register_main_translation_unit */
431 debug_nothing_tree
, /* function_decl */
432 dbxout_global_decl
, /* global_decl */
433 dbxout_type_decl
, /* type_decl */
434 debug_nothing_tree_tree_tree_bool
, /* imported_module_or_decl */
435 debug_nothing_tree
, /* deferred_inline_function */
436 debug_nothing_tree
, /* outlining_inline_function */
437 debug_nothing_rtx_code_label
, /* label */
438 dbxout_handle_pch
, /* handle_pch */
439 debug_nothing_rtx_insn
, /* var_location */
440 debug_nothing_void
, /* switch_text_section */
441 debug_nothing_tree_tree
, /* set_name */
442 0, /* start_end_main_source_file */
443 TYPE_SYMTAB_IS_ADDRESS
/* tree_type_symtab_field */
445 #endif /* XCOFF_DEBUGGING_INFO */
447 /* Numeric formatting helper macro. Note that this does not handle
449 #define NUMBER_FMT_LOOP(P, NUM, BASE) \
452 int digit = NUM % BASE; \
454 *--P = digit + '0'; \
458 /* Utility: write a decimal integer NUM to asm_out_file. */
463 char *p
= buf
+ sizeof buf
;
468 putc ('0', asm_out_file
);
473 putc ('-', asm_out_file
);
479 NUMBER_FMT_LOOP (p
, unum
, 10);
481 while (p
< buf
+ sizeof buf
)
483 putc (*p
, asm_out_file
);
489 /* Primitives for emitting simple stabs directives. All other stabs
490 routines should use these functions instead of directly emitting
491 stabs. They are exported because machine-dependent code may need
492 to invoke them, e.g. in a DBX_OUTPUT_* macro whose definition
493 forwards to code in CPU.c. */
495 /* The following functions should all be called immediately after one
496 of the dbxout_begin_stab* functions (below). They write out
497 various things as the value of a stab. */
499 /* Write out a literal zero as the value of a stab. */
501 dbxout_stab_value_zero (void)
503 fputs ("0\n", asm_out_file
);
506 /* Write out the label LABEL as the value of a stab. */
508 dbxout_stab_value_label (const char *label
)
510 assemble_name (asm_out_file
, label
);
511 putc ('\n', asm_out_file
);
514 /* Write out the difference of two labels, LABEL - BASE, as the value
517 dbxout_stab_value_label_diff (const char *label
, const char *base
)
519 assemble_name (asm_out_file
, label
);
520 putc ('-', asm_out_file
);
521 assemble_name (asm_out_file
, base
);
522 putc ('\n', asm_out_file
);
525 /* Write out an internal label as the value of a stab, and immediately
526 emit that internal label. This should be used only when
527 dbxout_stabd will not work. STEM is the name stem of the label,
528 COUNTERP is a pointer to a counter variable which will be used to
529 guarantee label uniqueness. */
531 dbxout_stab_value_internal_label (const char *stem
, int *counterp
)
534 int counter
= counterp
? (*counterp
)++ : 0;
536 ASM_GENERATE_INTERNAL_LABEL (label
, stem
, counter
);
537 dbxout_stab_value_label (label
);
538 targetm
.asm_out
.internal_label (asm_out_file
, stem
, counter
);
541 /* Write out the difference between BASE and an internal label as the
542 value of a stab, and immediately emit that internal label. STEM and
543 COUNTERP are as for dbxout_stab_value_internal_label. */
545 dbxout_stab_value_internal_label_diff (const char *stem
, int *counterp
,
549 int counter
= counterp
? (*counterp
)++ : 0;
551 ASM_GENERATE_INTERNAL_LABEL (label
, stem
, counter
);
552 dbxout_stab_value_label_diff (label
, base
);
553 targetm
.asm_out
.internal_label (asm_out_file
, stem
, counter
);
556 /* The following functions produce specific kinds of stab directives. */
558 /* Write a .stabd directive with type STYPE and desc SDESC to asm_out_file. */
560 dbxout_stabd (int stype
, int sdesc
)
562 fputs (ASM_STABD_OP
, asm_out_file
);
564 fputs (",0,", asm_out_file
);
566 putc ('\n', asm_out_file
);
569 /* Write a .stabn directive with type STYPE. This function stops
570 short of emitting the value field, which is the responsibility of
571 the caller (normally it will be either a symbol or the difference
575 dbxout_begin_stabn (int stype
)
577 fputs (ASM_STABN_OP
, asm_out_file
);
579 fputs (",0,0,", asm_out_file
);
582 /* Write a .stabn directive with type N_SLINE and desc LINE. As above,
583 the value field is the responsibility of the caller. */
585 dbxout_begin_stabn_sline (int lineno
)
587 fputs (ASM_STABN_OP
, asm_out_file
);
588 dbxout_int (N_SLINE
);
589 fputs (",0,", asm_out_file
);
591 putc (',', asm_out_file
);
594 /* Begin a .stabs directive with string "", type STYPE, and desc and
595 other fields 0. The value field is the responsibility of the
596 caller. This function cannot be used for .stabx directives. */
598 dbxout_begin_empty_stabs (int stype
)
600 fputs (ASM_STABS_OP
, asm_out_file
);
601 fputs ("\"\",", asm_out_file
);
603 fputs (",0,0,", asm_out_file
);
606 /* Begin a .stabs directive with string STR, type STYPE, and desc 0.
607 The value field is the responsibility of the caller. */
609 dbxout_begin_simple_stabs (const char *str
, int stype
)
611 fputs (ASM_STABS_OP
, asm_out_file
);
612 output_quoted_string (asm_out_file
, str
);
613 putc (',', asm_out_file
);
615 fputs (",0,0,", asm_out_file
);
618 /* As above but use SDESC for the desc field. */
620 dbxout_begin_simple_stabs_desc (const char *str
, int stype
, int sdesc
)
622 fputs (ASM_STABS_OP
, asm_out_file
);
623 output_quoted_string (asm_out_file
, str
);
624 putc (',', asm_out_file
);
626 fputs (",0,", asm_out_file
);
628 putc (',', asm_out_file
);
631 /* The next set of functions are entirely concerned with production of
632 "complex" .stabs directives: that is, .stabs directives whose
633 strings have to be constructed piecemeal. dbxout_type,
634 dbxout_symbol, etc. use these routines heavily. The string is queued
635 up in an obstack, then written out by dbxout_finish_complex_stabs, which
636 is also responsible for splitting it up if it exceeds DBX_CONTIN_LENGTH.
637 (You might think it would be more efficient to go straight to stdio
638 when DBX_CONTIN_LENGTH is 0 (i.e. no length limit) but that turns
639 out not to be the case, and anyway this needs fewer #ifdefs.) */
641 /* Begin a complex .stabs directive. If we can, write the initial
642 ASM_STABS_OP to the asm_out_file. */
645 dbxout_begin_complex_stabs (void)
647 emit_pending_bincls_if_required ();
649 fputs (ASM_STABS_OP
, asm_out_file
);
650 putc ('"', asm_out_file
);
651 gcc_assert (stabstr_last_contin_point
== 0);
654 /* As above, but do not force text or emit pending bincls. This is
655 used by dbxout_symbol_location, which needs to do something else. */
657 dbxout_begin_complex_stabs_noforcetext (void)
659 fputs (ASM_STABS_OP
, asm_out_file
);
660 putc ('"', asm_out_file
);
661 gcc_assert (stabstr_last_contin_point
== 0);
664 /* Add CHR, a single character, to the string being built. */
665 #define stabstr_C(chr) obstack_1grow (&stabstr_ob, chr)
667 /* Add STR, a normal C string, to the string being built. */
668 #define stabstr_S(str) obstack_grow (&stabstr_ob, str, strlen (str))
670 /* Add the text of ID, an IDENTIFIER_NODE, to the string being built. */
671 #define stabstr_I(id) obstack_grow (&stabstr_ob, \
672 IDENTIFIER_POINTER (id), \
673 IDENTIFIER_LENGTH (id))
675 /* Add NUM, a signed decimal number, to the string being built. */
677 stabstr_D (HOST_WIDE_INT num
)
680 char *p
= buf
+ sizeof buf
;
696 NUMBER_FMT_LOOP (p
, unum
, 10);
698 obstack_grow (&stabstr_ob
, p
, (buf
+ sizeof buf
) - p
);
701 /* Add NUM, an unsigned decimal number, to the string being built. */
703 stabstr_U (unsigned HOST_WIDE_INT num
)
706 char *p
= buf
+ sizeof buf
;
712 NUMBER_FMT_LOOP (p
, num
, 10);
713 obstack_grow (&stabstr_ob
, p
, (buf
+ sizeof buf
) - p
);
716 /* Add CST, an INTEGER_CST tree, to the string being built as an
717 unsigned octal number. This routine handles values which are
718 larger than a single HOST_WIDE_INT. */
722 int prec
= TYPE_PRECISION (TREE_TYPE (cst
));
723 int res_pres
= prec
% 3;
727 /* Leading zero for base indicator. */
730 /* If the value is zero, the base indicator will serve as the value
732 if (wi::eq_p (cst
, 0))
735 /* GDB wants constants with no extra leading "1" bits, so
736 we need to remove any sign-extension that might be
740 digit
= wi::extract_uhwi (cst
, prec
- 1, 1);
741 stabstr_C ('0' + digit
);
743 else if (res_pres
== 2)
745 digit
= wi::extract_uhwi (cst
, prec
- 2, 2);
746 stabstr_C ('0' + digit
);
750 for (i
= prec
- 3; i
>= 0; i
= i
- 3)
752 digit
= wi::extract_uhwi (cst
, i
, 3);
753 stabstr_C ('0' + digit
);
757 /* Called whenever it is safe to break a stabs string into multiple
758 .stabs directives. If the current string has exceeded the limit
759 set by DBX_CONTIN_LENGTH, mark the current position in the buffer
760 as a continuation point by inserting DBX_CONTIN_CHAR (doubled if
761 it is a backslash) and a null character. */
763 stabstr_continue (void)
765 if (DBX_CONTIN_LENGTH
> 0
766 && obstack_object_size (&stabstr_ob
) - stabstr_last_contin_point
769 if (DBX_CONTIN_CHAR
== '\\')
770 obstack_1grow (&stabstr_ob
, '\\');
771 obstack_1grow (&stabstr_ob
, DBX_CONTIN_CHAR
);
772 obstack_1grow (&stabstr_ob
, '\0');
773 stabstr_last_contin_point
= obstack_object_size (&stabstr_ob
);
776 #define CONTIN stabstr_continue ()
778 /* Macro subroutine of dbxout_finish_complex_stabs, which emits
779 all of the arguments to the .stabs directive after the string.
780 Overridden by xcoffout.h. CODE is the stabs code for this symbol;
781 LINE is the source line to write into the desc field (in extended
782 mode); SYM is the symbol itself.
784 ADDR, LABEL, and NUMBER are three different ways to represent the
785 stabs value field. At most one of these should be nonzero.
787 ADDR is used most of the time; it represents the value as an
788 RTL address constant.
790 LABEL is used (currently) only for N_CATCH stabs; it represents
791 the value as a string suitable for assemble_name.
793 NUMBER is used when the value is an offset from an implicit base
794 pointer (e.g. for a stack variable), or an index (e.g. for a
795 register variable). It represents the value as a decimal integer. */
797 #ifndef DBX_FINISH_STABS
798 #define DBX_FINISH_STABS(SYM, CODE, LINE, ADDR, LABEL, NUMBER) \
800 int line_ = use_gnu_debug_info_extensions ? LINE : 0; \
803 fputs (",0,", asm_out_file); \
804 dbxout_int (line_); \
805 putc (',', asm_out_file); \
807 output_addr_const (asm_out_file, ADDR); \
809 assemble_name (asm_out_file, LABEL); \
811 dbxout_int (NUMBER); \
812 putc ('\n', asm_out_file); \
816 /* Finish the emission of a complex .stabs directive. When DBX_CONTIN_LENGTH
817 is zero, this has only to emit the close quote and the remainder of
818 the arguments. When it is nonzero, the string has been marshalled in
819 stabstr_ob, and this routine is responsible for breaking it up into
820 DBX_CONTIN_LENGTH-sized chunks.
822 SYM is the DECL of the symbol under consideration; it is used only
823 for its DECL_SOURCE_LINE. The other arguments are all passed directly
824 to DBX_FINISH_STABS; see above for details. */
827 dbxout_finish_complex_stabs (tree sym
, stab_code_type code
,
828 rtx addr
, const char *label
, int number
)
830 int line ATTRIBUTE_UNUSED
;
834 line
= sym
? DECL_SOURCE_LINE (sym
) : 0;
835 if (DBX_CONTIN_LENGTH
> 0)
840 /* Nul-terminate the growing string, then get its size and
842 obstack_1grow (&stabstr_ob
, '\0');
844 len
= obstack_object_size (&stabstr_ob
);
845 chunk
= str
= XOBFINISH (&stabstr_ob
, char *);
847 /* Within the buffer are a sequence of NUL-separated strings,
848 each of which is to be written out as a separate stab
852 chunklen
= strlen (chunk
);
853 fwrite (chunk
, 1, chunklen
, asm_out_file
);
854 fputs ("\",", asm_out_file
);
856 /* Must add an extra byte to account for the NUL separator. */
857 chunk
+= chunklen
+ 1;
860 /* Only put a line number on the last stab in the sequence. */
861 DBX_FINISH_STABS (sym
, code
, len
== 0 ? line
: 0,
862 addr
, label
, number
);
866 fputs (ASM_STABS_OP
, asm_out_file
);
867 putc ('"', asm_out_file
);
869 stabstr_last_contin_point
= 0;
873 /* No continuations - we can put the whole string out at once.
874 It is faster to augment the string with the close quote and
875 comma than to do a two-character fputs. */
876 obstack_grow (&stabstr_ob
, "\",", 2);
877 len
= obstack_object_size (&stabstr_ob
);
878 str
= XOBFINISH (&stabstr_ob
, char *);
880 fwrite (str
, 1, len
, asm_out_file
);
881 DBX_FINISH_STABS (sym
, code
, line
, addr
, label
, number
);
883 obstack_free (&stabstr_ob
, str
);
886 #if defined (DBX_DEBUGGING_INFO) || defined (XCOFF_DEBUGGING_INFO)
888 /* When -gused is used, emit debug info for only used symbols. But in
889 addition to the standard intercepted debug_hooks there are some
890 direct calls into this file, i.e., dbxout_symbol, dbxout_parms, and
891 dbxout_reg_params. Those routines may also be called from a higher
892 level intercepted routine. So to prevent recording data for an inner
893 call to one of these for an intercept, we maintain an intercept
894 nesting counter (debug_nesting). We only save the intercepted
895 arguments if the nesting is 1. */
896 static int debug_nesting
= 0;
898 static tree
*symbol_queue
;
899 static int symbol_queue_index
= 0;
900 static int symbol_queue_size
= 0;
902 #define DBXOUT_DECR_NESTING \
903 if (--debug_nesting == 0 && symbol_queue_index > 0) \
904 { emit_pending_bincls_if_required (); debug_flush_symbol_queue (); }
906 #define DBXOUT_DECR_NESTING_AND_RETURN(x) \
907 do {--debug_nesting; return (x);} while (0)
909 #endif /* DBX_DEBUGGING_INFO || XCOFF_DEBUGGING_INFO */
911 #if defined (DBX_DEBUGGING_INFO)
914 dbxout_function_end (tree decl ATTRIBUTE_UNUSED
)
916 char lscope_label_name
[100];
918 /* The Lscope label must be emitted even if we aren't doing anything
919 else; dbxout_block needs it. */
920 switch_to_section (function_section (current_function_decl
));
922 /* Convert Lscope into the appropriate format for local labels in case
923 the system doesn't insert underscores in front of user generated
925 ASM_GENERATE_INTERNAL_LABEL (lscope_label_name
, "Lscope", scope_labelno
);
926 targetm
.asm_out
.internal_label (asm_out_file
, "Lscope", scope_labelno
);
928 /* The N_FUN tag at the end of the function is a GNU extension,
929 which may be undesirable, and is unnecessary if we do not have
931 if (!use_gnu_debug_info_extensions
932 || NO_DBX_FUNCTION_END
933 || !targetm_common
.have_named_sections
)
936 /* By convention, GCC will mark the end of a function with an N_FUN
937 symbol and an empty string. */
938 if (flag_reorder_blocks_and_partition
)
940 dbxout_begin_empty_stabs (N_FUN
);
941 dbxout_stab_value_label_diff (crtl
->subsections
.hot_section_end_label
,
942 crtl
->subsections
.hot_section_label
);
943 dbxout_begin_empty_stabs (N_FUN
);
944 dbxout_stab_value_label_diff (crtl
->subsections
.cold_section_end_label
,
945 crtl
->subsections
.cold_section_label
);
949 char begin_label
[20];
950 /* Reference current function start using LFBB. */
951 ASM_GENERATE_INTERNAL_LABEL (begin_label
, "LFBB", scope_labelno
);
952 dbxout_begin_empty_stabs (N_FUN
);
953 dbxout_stab_value_label_diff (lscope_label_name
, begin_label
);
956 if (!NO_DBX_BNSYM_ENSYM
&& !flag_debug_only_used_symbols
)
957 dbxout_stabd (N_ENSYM
, 0);
959 #endif /* DBX_DEBUGGING_INFO */
961 /* Get lang description for N_SO stab. */
962 static unsigned int ATTRIBUTE_UNUSED
963 get_lang_number (void)
965 const char *language_string
= lang_hooks
.name
;
968 else if (lang_GNU_CXX ())
970 else if (strcmp (language_string
, "GNU F77") == 0)
972 else if (lang_GNU_Fortran ())
973 return N_SO_FORTRAN90
; /* CHECKME */
974 else if (strcmp (language_string
, "GNU Pascal") == 0)
976 else if (strcmp (language_string
, "GNU Objective-C") == 0)
978 else if (strcmp (language_string
, "GNU Objective-C++") == 0)
979 return N_SO_OBJCPLUS
;
988 unsigned int lang
= get_lang_number ();
990 return (lang
== N_SO_FORTRAN
) || (lang
== N_SO_FORTRAN90
);
993 /* At the beginning of compilation, start writing the symbol table.
994 Initialize `typevec' and output the standard data types of C. */
997 dbxout_init (const char *input_file_name
)
999 char ltext_label_name
[100];
1000 bool used_ltext_label_name
= false;
1001 tree syms
= lang_hooks
.decls
.getdecls ();
1002 const char *mapped_name
;
1005 typevec
= ggc_cleared_vec_alloc
<typeinfo
> (typevec_len
);
1007 /* stabstr_ob contains one string, which will be just fine with
1008 1-byte alignment. */
1009 obstack_specify_allocation (&stabstr_ob
, 0, 1, xmalloc
, free
);
1011 /* Convert Ltext into the appropriate format for local labels in case
1012 the system doesn't insert underscores in front of user generated
1014 ASM_GENERATE_INTERNAL_LABEL (ltext_label_name
, "Ltext", 0);
1016 /* Put the current working directory in an N_SO symbol. */
1017 if (use_gnu_debug_info_extensions
&& !NO_DBX_MAIN_SOURCE_DIRECTORY
)
1019 static const char *cwd
;
1023 cwd
= get_src_pwd ();
1026 else if (!IS_DIR_SEPARATOR (cwd
[strlen (cwd
) - 1]))
1027 cwd
= concat (cwd
, "/", NULL
);
1028 cwd
= remap_debug_filename (cwd
);
1030 #ifdef DBX_OUTPUT_MAIN_SOURCE_DIRECTORY
1031 DBX_OUTPUT_MAIN_SOURCE_DIRECTORY (asm_out_file
, cwd
);
1032 #else /* no DBX_OUTPUT_MAIN_SOURCE_DIRECTORY */
1033 dbxout_begin_simple_stabs_desc (cwd
, N_SO
, get_lang_number ());
1034 dbxout_stab_value_label (ltext_label_name
);
1035 used_ltext_label_name
= true;
1036 #endif /* no DBX_OUTPUT_MAIN_SOURCE_DIRECTORY */
1039 mapped_name
= remap_debug_filename (input_file_name
);
1040 #ifdef DBX_OUTPUT_MAIN_SOURCE_FILENAME
1041 DBX_OUTPUT_MAIN_SOURCE_FILENAME (asm_out_file
, mapped_name
);
1043 dbxout_begin_simple_stabs_desc (mapped_name
, N_SO
, get_lang_number ());
1044 dbxout_stab_value_label (ltext_label_name
);
1045 used_ltext_label_name
= true;
1048 if (used_ltext_label_name
)
1050 switch_to_section (text_section
);
1051 targetm
.asm_out
.internal_label (asm_out_file
, "Ltext", 0);
1054 /* Emit an N_OPT stab to indicate that this file was compiled by GCC.
1055 The string used is historical. */
1056 #ifndef NO_DBX_GCC_MARKER
1057 dbxout_begin_simple_stabs ("gcc2_compiled.", N_OPT
);
1058 dbxout_stab_value_zero ();
1061 base_input_file
= lastfile
= input_file_name
;
1063 next_type_number
= 1;
1065 #ifdef DBX_USE_BINCL
1066 current_file
= XNEW (struct dbx_file
);
1067 current_file
->next
= NULL
;
1068 current_file
->file_number
= 0;
1069 current_file
->next_type_number
= 1;
1070 next_file_number
= 1;
1071 current_file
->prev
= NULL
;
1072 current_file
->bincl_status
= BINCL_NOT_REQUIRED
;
1073 current_file
->pending_bincl_name
= NULL
;
1076 /* Get all permanent types that have typedef names, and output them
1077 all, except for those already output. Some language front ends
1078 put these declarations in the top-level scope; some do not;
1079 the latter are responsible for calling debug_hooks->type_decl from
1080 their record_builtin_type function. */
1081 dbxout_typedefs (syms
);
1083 if (preinit_symbols
)
1086 for (t
= nreverse (preinit_symbols
); t
; t
= TREE_CHAIN (t
))
1087 dbxout_symbol (TREE_VALUE (t
), 0);
1088 preinit_symbols
= 0;
1092 /* Output any typedef names for types described by TYPE_DECLs in SYMS. */
1095 dbxout_typedefs (tree syms
)
1097 for (; syms
!= NULL_TREE
; syms
= DECL_CHAIN (syms
))
1099 if (TREE_CODE (syms
) == TYPE_DECL
)
1101 tree type
= TREE_TYPE (syms
);
1102 if (TYPE_NAME (type
)
1103 && TREE_CODE (TYPE_NAME (type
)) == TYPE_DECL
1104 && COMPLETE_OR_VOID_TYPE_P (type
)
1105 && ! TREE_ASM_WRITTEN (TYPE_NAME (type
)))
1106 dbxout_symbol (TYPE_NAME (type
), 0);
1111 #ifdef DBX_USE_BINCL
1112 /* Emit BINCL stab using given name. */
1114 emit_bincl_stab (const char *name
)
1116 dbxout_begin_simple_stabs (name
, N_BINCL
);
1117 dbxout_stab_value_zero ();
1120 /* If there are pending bincls then it is time to emit all of them. */
1123 emit_pending_bincls_if_required (void)
1126 emit_pending_bincls ();
1129 /* Emit all pending bincls. */
1132 emit_pending_bincls (void)
1134 struct dbx_file
*f
= current_file
;
1136 /* Find first pending bincl. */
1137 while (f
->bincl_status
== BINCL_PENDING
)
1140 /* Now emit all bincls. */
1145 if (f
->bincl_status
== BINCL_PENDING
)
1147 emit_bincl_stab (f
->pending_bincl_name
);
1149 /* Update file number and status. */
1150 f
->file_number
= next_file_number
++;
1151 f
->bincl_status
= BINCL_PROCESSED
;
1153 if (f
== current_file
)
1158 /* All pending bincls have been emitted. */
1165 emit_pending_bincls_if_required (void) {}
1168 /* Change to reading from a new source file. Generate a N_BINCL stab. */
1171 dbxout_start_source_file (unsigned int line ATTRIBUTE_UNUSED
,
1172 const char *filename ATTRIBUTE_UNUSED
)
1174 #ifdef DBX_USE_BINCL
1175 struct dbx_file
*n
= XNEW (struct dbx_file
);
1177 n
->next
= current_file
;
1178 n
->next_type_number
= 1;
1179 /* Do not assign file number now.
1180 Delay it until we actually emit BINCL. */
1183 current_file
->prev
= n
;
1184 n
->bincl_status
= BINCL_PENDING
;
1185 n
->pending_bincl_name
= remap_debug_filename (filename
);
1191 /* Revert to reading a previous source file. Generate a N_EINCL stab. */
1194 dbxout_end_source_file (unsigned int line ATTRIBUTE_UNUSED
)
1196 #ifdef DBX_USE_BINCL
1197 /* Emit EINCL stab only if BINCL is not pending. */
1198 if (current_file
->bincl_status
== BINCL_PROCESSED
)
1200 dbxout_begin_stabn (N_EINCL
);
1201 dbxout_stab_value_zero ();
1203 current_file
->bincl_status
= BINCL_NOT_REQUIRED
;
1204 current_file
= current_file
->next
;
1208 /* Handle a few odd cases that occur when trying to make PCH files work. */
1211 dbxout_handle_pch (unsigned at_end
)
1215 /* When using the PCH, this file will be included, so we need to output
1217 dbxout_start_source_file (0, lastfile
);
1219 /* The base file when using the PCH won't be the same as
1220 the base file when it's being generated. */
1225 /* ... and an EINCL. */
1226 dbxout_end_source_file (0);
1228 /* Deal with cases where 'lastfile' was never actually changed. */
1229 lastfile_is_base
= lastfile
== NULL
;
1233 #if defined (DBX_DEBUGGING_INFO)
1235 static void dbxout_block (tree
, int, tree
);
1237 /* Output debugging info to FILE to switch to sourcefile FILENAME. */
1240 dbxout_source_file (const char *filename
)
1242 if (lastfile
== 0 && lastfile_is_base
)
1244 lastfile
= base_input_file
;
1245 lastfile_is_base
= 0;
1248 if (filename
&& (lastfile
== 0 || strcmp (filename
, lastfile
)))
1250 /* Don't change section amid function. */
1251 if (current_function_decl
== NULL_TREE
)
1252 switch_to_section (text_section
);
1254 dbxout_begin_simple_stabs (remap_debug_filename (filename
), N_SOL
);
1255 dbxout_stab_value_internal_label ("Ltext", &source_label_number
);
1256 lastfile
= filename
;
1260 /* Output N_BNSYM, line number symbol entry, and local symbol at
1264 dbxout_begin_prologue (unsigned int lineno
, const char *filename
)
1266 if (use_gnu_debug_info_extensions
1267 && !NO_DBX_FUNCTION_END
1268 && !NO_DBX_BNSYM_ENSYM
1269 && !flag_debug_only_used_symbols
)
1270 dbxout_stabd (N_BNSYM
, 0);
1272 /* pre-increment the scope counter */
1275 dbxout_source_line (lineno
, filename
, 0, true);
1276 /* Output function begin block at function scope, referenced
1277 by dbxout_block, dbxout_source_line and dbxout_function_end. */
1278 emit_pending_bincls_if_required ();
1279 targetm
.asm_out
.internal_label (asm_out_file
, "LFBB", scope_labelno
);
1282 /* Output a line number symbol entry for source file FILENAME and line
1286 dbxout_source_line (unsigned int lineno
, const char *filename
,
1287 int discriminator ATTRIBUTE_UNUSED
,
1288 bool is_stmt ATTRIBUTE_UNUSED
)
1290 dbxout_source_file (filename
);
1292 #ifdef DBX_OUTPUT_SOURCE_LINE
1293 DBX_OUTPUT_SOURCE_LINE (asm_out_file
, lineno
, dbxout_source_line_counter
);
1295 if (DBX_LINES_FUNCTION_RELATIVE
)
1297 char begin_label
[20];
1298 dbxout_begin_stabn_sline (lineno
);
1299 /* Reference current function start using LFBB. */
1300 ASM_GENERATE_INTERNAL_LABEL (begin_label
, "LFBB", scope_labelno
);
1301 dbxout_stab_value_internal_label_diff ("LM", &dbxout_source_line_counter
,
1305 dbxout_stabd (N_SLINE
, lineno
);
1309 /* Describe the beginning of an internal block within a function. */
1312 dbxout_begin_block (unsigned int line ATTRIBUTE_UNUSED
, unsigned int n
)
1314 emit_pending_bincls_if_required ();
1315 targetm
.asm_out
.internal_label (asm_out_file
, "LBB", n
);
1318 /* Describe the end line-number of an internal block within a function. */
1321 dbxout_end_block (unsigned int line ATTRIBUTE_UNUSED
, unsigned int n
)
1323 emit_pending_bincls_if_required ();
1324 targetm
.asm_out
.internal_label (asm_out_file
, "LBE", n
);
1327 /* Output dbx data for a function definition.
1328 This includes a definition of the function name itself (a symbol),
1329 definitions of the parameters (locating them in the parameter list)
1330 and then output the block that makes up the function's body
1331 (including all the auto variables of the function). */
1334 dbxout_function_decl (tree decl
)
1336 emit_pending_bincls_if_required ();
1337 #ifndef DBX_FUNCTION_FIRST
1338 dbxout_begin_function (decl
);
1340 dbxout_block (DECL_INITIAL (decl
), 0, DECL_ARGUMENTS (decl
));
1341 dbxout_function_end (decl
);
1344 #endif /* DBX_DEBUGGING_INFO */
1346 /* Debug information for a global DECL. Called from toplev.c after
1347 compilation proper has finished. */
1349 dbxout_global_decl (tree decl
)
1351 if (TREE_CODE (decl
) == VAR_DECL
&& !DECL_EXTERNAL (decl
))
1353 int saved_tree_used
= TREE_USED (decl
);
1354 TREE_USED (decl
) = 1;
1355 dbxout_symbol (decl
, 0);
1356 TREE_USED (decl
) = saved_tree_used
;
1360 /* This is just a function-type adapter; dbxout_symbol does exactly
1361 what we want but returns an int. */
1363 dbxout_type_decl (tree decl
, int local
)
1365 dbxout_symbol (decl
, local
);
1368 /* At the end of compilation, finish writing the symbol table.
1369 The default is to call debug_free_queue but do nothing else. */
1372 dbxout_finish (const char *filename ATTRIBUTE_UNUSED
)
1374 #ifdef DBX_OUTPUT_MAIN_SOURCE_FILE_END
1375 DBX_OUTPUT_MAIN_SOURCE_FILE_END (asm_out_file
, filename
);
1376 #elif defined DBX_OUTPUT_NULL_N_SO_AT_MAIN_SOURCE_FILE_END
1378 switch_to_section (text_section
);
1379 dbxout_begin_empty_stabs (N_SO
);
1380 dbxout_stab_value_internal_label ("Letext", 0);
1383 debug_free_queue ();
1386 /* Output the index of a type. */
1389 dbxout_type_index (tree type
)
1391 #ifndef DBX_USE_BINCL
1392 stabstr_D (TYPE_SYMTAB_ADDRESS (type
));
1394 struct typeinfo
*t
= &typevec
[TYPE_SYMTAB_ADDRESS (type
)];
1396 stabstr_D (t
->file_number
);
1398 stabstr_D (t
->type_number
);
1404 /* Generate the symbols for any queued up type symbols we encountered
1405 while generating the type info for some originally used symbol.
1406 This might generate additional entries in the queue. Only when
1407 the nesting depth goes to 0 is this routine called. */
1410 debug_flush_symbol_queue (void)
1414 /* Make sure that additionally queued items are not flushed
1419 for (i
= 0; i
< symbol_queue_index
; ++i
)
1421 /* If we pushed queued symbols then such symbols must be
1422 output no matter what anyone else says. Specifically,
1423 we need to make sure dbxout_symbol() thinks the symbol was
1424 used and also we need to override TYPE_DECL_SUPPRESS_DEBUG
1425 which may be set for outside reasons. */
1426 int saved_tree_used
= TREE_USED (symbol_queue
[i
]);
1427 int saved_suppress_debug
= TYPE_DECL_SUPPRESS_DEBUG (symbol_queue
[i
]);
1428 TREE_USED (symbol_queue
[i
]) = 1;
1429 TYPE_DECL_SUPPRESS_DEBUG (symbol_queue
[i
]) = 0;
1431 #ifdef DBX_DEBUGGING_INFO
1432 dbxout_symbol (symbol_queue
[i
], 0);
1435 TREE_USED (symbol_queue
[i
]) = saved_tree_used
;
1436 TYPE_DECL_SUPPRESS_DEBUG (symbol_queue
[i
]) = saved_suppress_debug
;
1439 symbol_queue_index
= 0;
1443 /* Queue a type symbol needed as part of the definition of a decl
1444 symbol. These symbols are generated when debug_flush_symbol_queue()
1448 debug_queue_symbol (tree decl
)
1450 if (symbol_queue_index
>= symbol_queue_size
)
1452 symbol_queue_size
+= 10;
1453 symbol_queue
= XRESIZEVEC (tree
, symbol_queue
, symbol_queue_size
);
1456 symbol_queue
[symbol_queue_index
++] = decl
;
1459 /* Free symbol queue. */
1461 debug_free_queue (void)
1465 free (symbol_queue
);
1466 symbol_queue
= NULL
;
1467 symbol_queue_size
= 0;
1471 /* Used in several places: evaluates to '0' for a private decl,
1472 '1' for a protected decl, '2' for a public decl. */
1473 #define DECL_ACCESSIBILITY_CHAR(DECL) \
1474 (TREE_PRIVATE (DECL) ? '0' : TREE_PROTECTED (DECL) ? '1' : '2')
1476 /* Subroutine of `dbxout_type'. Output the type fields of TYPE.
1477 This must be a separate function because anonymous unions require
1481 dbxout_type_fields (tree type
)
1485 /* Output the name, type, position (in bits), size (in bits) of each
1486 field that we can support. */
1487 for (tem
= TYPE_FIELDS (type
); tem
; tem
= DECL_CHAIN (tem
))
1489 /* If one of the nodes is an error_mark or its type is then
1491 if (error_operand_p (tem
))
1494 /* Omit here local type decls until we know how to support them. */
1495 if (TREE_CODE (tem
) == TYPE_DECL
1496 /* Omit here the nameless fields that are used to skip bits. */
1497 || DECL_IGNORED_P (tem
)
1498 /* Omit fields whose position or size are variable or too large to
1500 || (TREE_CODE (tem
) == FIELD_DECL
1501 && (! tree_fits_shwi_p (bit_position (tem
))
1502 || ! DECL_SIZE (tem
)
1503 || ! tree_fits_uhwi_p (DECL_SIZE (tem
)))))
1506 else if (TREE_CODE (tem
) != CONST_DECL
)
1508 /* Continue the line if necessary,
1509 but not before the first field. */
1510 if (tem
!= TYPE_FIELDS (type
))
1513 if (DECL_NAME (tem
))
1514 stabstr_I (DECL_NAME (tem
));
1517 if (use_gnu_debug_info_extensions
1518 && (TREE_PRIVATE (tem
) || TREE_PROTECTED (tem
)
1519 || TREE_CODE (tem
) != FIELD_DECL
))
1522 stabstr_C (DECL_ACCESSIBILITY_CHAR (tem
));
1525 dbxout_type ((TREE_CODE (tem
) == FIELD_DECL
1526 && DECL_BIT_FIELD_TYPE (tem
))
1527 ? DECL_BIT_FIELD_TYPE (tem
) : TREE_TYPE (tem
), 0);
1529 if (TREE_CODE (tem
) == VAR_DECL
)
1531 if (TREE_STATIC (tem
) && use_gnu_debug_info_extensions
)
1533 tree name
= DECL_ASSEMBLER_NAME (tem
);
1540 /* If TEM is non-static, GDB won't understand it. */
1541 stabstr_S (",0,0;");
1546 stabstr_D (int_bit_position (tem
));
1548 stabstr_D (tree_to_uhwi (DECL_SIZE (tem
)));
1555 /* Subroutine of `dbxout_type_methods'. Output debug info about the
1556 method described DECL. */
1559 dbxout_type_method_1 (tree decl
)
1563 if (TREE_CODE (TREE_TYPE (decl
)) == FUNCTION_TYPE
)
1565 else /* it's a METHOD_TYPE. */
1567 tree firstarg
= TREE_VALUE (TYPE_ARG_TYPES (TREE_TYPE (decl
)));
1568 /* A for normal functions.
1569 B for `const' member functions.
1570 C for `volatile' member functions.
1571 D for `const volatile' member functions. */
1572 if (TYPE_READONLY (TREE_TYPE (firstarg
)))
1574 if (TYPE_VOLATILE (TREE_TYPE (firstarg
)))
1577 if (DECL_VINDEX (decl
))
1583 /* ??? Output the mangled name, which contains an encoding of the
1584 method's type signature. May not be necessary anymore. */
1586 stabstr_I (DECL_ASSEMBLER_NAME (decl
));
1588 stabstr_C (DECL_ACCESSIBILITY_CHAR (decl
));
1592 if (DECL_VINDEX (decl
) && tree_fits_shwi_p (DECL_VINDEX (decl
)))
1594 stabstr_D (tree_to_shwi (DECL_VINDEX (decl
)));
1596 dbxout_type (DECL_CONTEXT (decl
), 0);
1601 /* Subroutine of `dbxout_type'. Output debug info about the methods defined
1605 dbxout_type_methods (tree type
)
1607 /* C++: put out the method names and their parameter lists */
1608 tree methods
= TYPE_METHODS (type
);
1612 if (methods
== NULL_TREE
)
1615 if (TREE_CODE (methods
) != TREE_VEC
)
1617 else if (TREE_VEC_ELT (methods
, 0) != NULL_TREE
)
1618 fndecl
= TREE_VEC_ELT (methods
, 0);
1620 fndecl
= TREE_VEC_ELT (methods
, 1);
1624 int need_prefix
= 1;
1626 /* Group together all the methods for the same operation.
1627 These differ in the types of the arguments. */
1628 for (last
= NULL_TREE
;
1629 fndecl
&& (last
== NULL_TREE
|| DECL_NAME (fndecl
) == DECL_NAME (last
));
1630 fndecl
= DECL_CHAIN (fndecl
))
1631 /* Output the name of the field (after overloading), as
1632 well as the name of the field before overloading, along
1633 with its parameter list */
1635 /* Skip methods that aren't FUNCTION_DECLs. (In C++, these
1636 include TEMPLATE_DECLs.) The debugger doesn't know what
1637 to do with such entities anyhow. */
1638 if (TREE_CODE (fndecl
) != FUNCTION_DECL
)
1645 /* Also ignore abstract methods; those are only interesting to
1646 the DWARF backends. */
1647 if (DECL_IGNORED_P (fndecl
) || DECL_ABSTRACT_P (fndecl
))
1650 /* Redundantly output the plain name, since that's what gdb
1654 stabstr_I (DECL_NAME (fndecl
));
1659 dbxout_type (TREE_TYPE (fndecl
), 0);
1660 dbxout_type_method_1 (fndecl
);
1667 /* Emit a "range" type specification, which has the form:
1668 "r<index type>;<lower bound>;<upper bound>;".
1669 TYPE is an INTEGER_TYPE, LOW and HIGH are the bounds. */
1672 dbxout_range_type (tree type
, tree low
, tree high
)
1675 if (TREE_TYPE (type
))
1676 dbxout_type (TREE_TYPE (type
), 0);
1677 else if (TREE_CODE (type
) != INTEGER_TYPE
)
1678 dbxout_type (type
, 0); /* E.g. Pascal's ARRAY [BOOLEAN] of INTEGER */
1681 /* Traditionally, we made sure 'int' was type 1, and builtin types
1682 were defined to be sub-ranges of int. Unfortunately, this
1683 does not allow us to distinguish true sub-ranges from integer
1684 types. So, instead we define integer (non-sub-range) types as
1685 sub-ranges of themselves. This matters for Chill. If this isn't
1686 a subrange type, then we want to define it in terms of itself.
1687 However, in C, this may be an anonymous integer type, and we don't
1688 want to emit debug info referring to it. Just calling
1689 dbxout_type_index won't work anyways, because the type hasn't been
1690 defined yet. We make this work for both cases by checked to see
1691 whether this is a defined type, referring to it if it is, and using
1693 if (TYPE_SYMTAB_ADDRESS (type
) != 0)
1694 dbxout_type_index (type
);
1696 dbxout_type_index (integer_type_node
);
1700 if (low
&& tree_fits_shwi_p (low
))
1702 if (print_int_cst_bounds_in_octal_p (type
, low
, high
))
1705 stabstr_D (tree_to_shwi (low
));
1711 if (high
&& tree_fits_shwi_p (high
))
1713 if (print_int_cst_bounds_in_octal_p (type
, low
, high
))
1716 stabstr_D (tree_to_shwi (high
));
1724 /* Output a reference to a type. If the type has not yet been
1725 described in the dbx output, output its definition now.
1726 For a type already defined, just refer to its definition
1727 using the type number.
1729 If FULL is nonzero, and the type has been described only with
1730 a forward-reference, output the definition now.
1731 If FULL is zero in this case, just refer to the forward-reference
1732 using the number previously allocated. */
1735 dbxout_type (tree type
, int full
)
1737 static int anonymous_type_number
= 0;
1738 tree tem
, main_variant
, low
, high
;
1740 if (TREE_CODE (type
) == INTEGER_TYPE
)
1742 if (TREE_TYPE (type
) == 0)
1744 low
= TYPE_MIN_VALUE (type
);
1745 high
= TYPE_MAX_VALUE (type
);
1748 else if (subrange_type_for_debug_p (type
, &low
, &high
))
1751 /* If this is a subtype that should not be emitted as a subrange type,
1752 use the base type. */
1755 type
= TREE_TYPE (type
);
1756 low
= TYPE_MIN_VALUE (type
);
1757 high
= TYPE_MAX_VALUE (type
);
1761 /* If there was an input error and we don't really have a type,
1762 avoid crashing and write something that is at least valid
1763 by assuming `int'. */
1764 if (type
== error_mark_node
)
1765 type
= integer_type_node
;
1768 if (TYPE_NAME (type
)
1769 && TREE_CODE (TYPE_NAME (type
)) == TYPE_DECL
1770 && TYPE_DECL_SUPPRESS_DEBUG (TYPE_NAME (type
)))
1774 /* Try to find the "main variant" with the same name. */
1775 if (TYPE_NAME (type
) && TREE_CODE (TYPE_NAME (type
)) == TYPE_DECL
1776 && DECL_ORIGINAL_TYPE (TYPE_NAME (type
)))
1777 main_variant
= TREE_TYPE (TYPE_NAME (type
));
1779 main_variant
= TYPE_MAIN_VARIANT (type
);
1781 /* If we are not using extensions, stabs does not distinguish const and
1782 volatile, so there is no need to make them separate types. */
1783 if (!use_gnu_debug_info_extensions
)
1784 type
= main_variant
;
1786 if (TYPE_SYMTAB_ADDRESS (type
) == 0)
1788 /* Type has no dbx number assigned. Assign next available number. */
1789 TYPE_SYMTAB_ADDRESS (type
) = next_type_number
++;
1791 /* Make sure type vector is long enough to record about this type. */
1793 if (next_type_number
== typevec_len
)
1795 typevec
= GGC_RESIZEVEC (struct typeinfo
, typevec
, typevec_len
* 2);
1796 memset (typevec
+ typevec_len
, 0, typevec_len
* sizeof typevec
[0]);
1800 #ifdef DBX_USE_BINCL
1801 emit_pending_bincls_if_required ();
1802 typevec
[TYPE_SYMTAB_ADDRESS (type
)].file_number
1803 = current_file
->file_number
;
1804 typevec
[TYPE_SYMTAB_ADDRESS (type
)].type_number
1805 = current_file
->next_type_number
++;
1809 if (flag_debug_only_used_symbols
)
1811 if ((TREE_CODE (type
) == RECORD_TYPE
1812 || TREE_CODE (type
) == UNION_TYPE
1813 || TREE_CODE (type
) == QUAL_UNION_TYPE
1814 || TREE_CODE (type
) == ENUMERAL_TYPE
)
1815 && TYPE_STUB_DECL (type
)
1816 && DECL_P (TYPE_STUB_DECL (type
))
1817 && ! DECL_IGNORED_P (TYPE_STUB_DECL (type
)))
1818 debug_queue_symbol (TYPE_STUB_DECL (type
));
1819 else if (TYPE_NAME (type
)
1820 && TREE_CODE (TYPE_NAME (type
)) == TYPE_DECL
)
1821 debug_queue_symbol (TYPE_NAME (type
));
1824 /* Output the number of this type, to refer to it. */
1825 dbxout_type_index (type
);
1827 #ifdef DBX_TYPE_DEFINED
1828 if (DBX_TYPE_DEFINED (type
))
1832 /* If this type's definition has been output or is now being output,
1835 switch (typevec
[TYPE_SYMTAB_ADDRESS (type
)].status
)
1840 /* If we have already had a cross reference,
1841 and either that's all we want or that's the best we could do,
1842 don't repeat the cross reference.
1843 Sun dbx crashes if we do. */
1844 if (! full
|| !COMPLETE_TYPE_P (type
)
1845 /* No way in DBX fmt to describe a variable size. */
1846 || ! tree_fits_uhwi_p (TYPE_SIZE (type
)))
1854 /* For systems where dbx output does not allow the `=xsNAME:' syntax,
1855 leave the type-number completely undefined rather than output
1856 a cross-reference. If we have already used GNU debug info extensions,
1857 then it is OK to output a cross reference. This is necessary to get
1858 proper C++ debug output. */
1859 if ((TREE_CODE (type
) == RECORD_TYPE
|| TREE_CODE (type
) == UNION_TYPE
1860 || TREE_CODE (type
) == QUAL_UNION_TYPE
1861 || TREE_CODE (type
) == ENUMERAL_TYPE
)
1862 && ! use_gnu_debug_info_extensions
)
1863 /* We must use the same test here as we use twice below when deciding
1864 whether to emit a cross-reference. */
1865 if ((TYPE_NAME (type
) != 0
1866 && ! (TREE_CODE (TYPE_NAME (type
)) == TYPE_DECL
1867 && DECL_IGNORED_P (TYPE_NAME (type
)))
1869 || !COMPLETE_TYPE_P (type
)
1870 /* No way in DBX fmt to describe a variable size. */
1871 || ! tree_fits_uhwi_p (TYPE_SIZE (type
)))
1873 typevec
[TYPE_SYMTAB_ADDRESS (type
)].status
= TYPE_XREF
;
1878 /* Output a definition now. */
1881 /* Mark it as defined, so that if it is self-referent
1882 we will not get into an infinite recursion of definitions. */
1884 typevec
[TYPE_SYMTAB_ADDRESS (type
)].status
= TYPE_DEFINED
;
1886 /* If this type is a variant of some other, hand off. Types with
1887 different names are usefully distinguished. We only distinguish
1888 cv-qualified types if we're using extensions. */
1889 if (TYPE_READONLY (type
) > TYPE_READONLY (main_variant
))
1892 dbxout_type (build_type_variant (type
, 0, TYPE_VOLATILE (type
)), 0);
1895 else if (TYPE_VOLATILE (type
) > TYPE_VOLATILE (main_variant
))
1898 dbxout_type (build_type_variant (type
, TYPE_READONLY (type
), 0), 0);
1901 else if (main_variant
!= TYPE_MAIN_VARIANT (type
))
1903 if (flag_debug_only_used_symbols
)
1905 tree orig_type
= DECL_ORIGINAL_TYPE (TYPE_NAME (type
));
1907 if ((TREE_CODE (orig_type
) == RECORD_TYPE
1908 || TREE_CODE (orig_type
) == UNION_TYPE
1909 || TREE_CODE (orig_type
) == QUAL_UNION_TYPE
1910 || TREE_CODE (orig_type
) == ENUMERAL_TYPE
)
1911 && TYPE_STUB_DECL (orig_type
)
1912 && ! DECL_IGNORED_P (TYPE_STUB_DECL (orig_type
)))
1913 debug_queue_symbol (TYPE_STUB_DECL (orig_type
));
1915 /* 'type' is a typedef; output the type it refers to. */
1916 dbxout_type (DECL_ORIGINAL_TYPE (TYPE_NAME (type
)), 0);
1919 /* else continue. */
1921 switch (TREE_CODE (type
))
1926 /* For a void type, just define it as itself; i.e., "5=5".
1927 This makes us consider it defined
1928 without saying what it is. The debugger will make it
1929 a void type when the reference is seen, and nothing will
1930 ever override that default. */
1931 dbxout_type_index (type
);
1935 if (type
== char_type_node
&& ! TYPE_UNSIGNED (type
))
1937 /* Output the type `char' as a subrange of itself!
1938 I don't understand this definition, just copied it
1939 from the output of pcc.
1940 This used to use `r2' explicitly and we used to
1941 take care to make sure that `char' was type number 2. */
1943 dbxout_type_index (type
);
1944 stabstr_S (";0;127;");
1947 /* If this is a subtype of another integer type, always prefer to
1948 write it as a subtype. */
1949 else if (TREE_TYPE (type
) != 0
1950 && TREE_CODE (TREE_TYPE (type
)) == INTEGER_TYPE
)
1952 /* If the size is non-standard, say what it is if we can use
1955 if (use_gnu_debug_info_extensions
1956 && TYPE_PRECISION (type
) != TYPE_PRECISION (integer_type_node
))
1959 stabstr_D (TYPE_PRECISION (type
));
1963 dbxout_range_type (type
, low
, high
);
1968 /* If the size is non-standard, say what it is if we can use
1971 if (use_gnu_debug_info_extensions
1972 && TYPE_PRECISION (type
) != TYPE_PRECISION (integer_type_node
))
1975 stabstr_D (TYPE_PRECISION (type
));
1979 if (print_int_cst_bounds_in_octal_p (type
, low
, high
))
1983 /* If this type derives from another type, output type index of
1984 parent type. This is particularly important when parent type
1985 is an enumerated type, because not generating the parent type
1986 index would transform the definition of this enumerated type
1987 into a plain unsigned type. */
1988 if (TREE_TYPE (type
) != 0)
1989 dbxout_type_index (TREE_TYPE (type
));
1991 dbxout_type_index (type
);
2001 /* Output other integer types as subranges of `int'. */
2002 dbxout_range_type (type
, low
, high
);
2008 case FIXED_POINT_TYPE
:
2009 /* This used to say `r1' and we used to take care
2010 to make sure that `int' was type number 1. */
2012 dbxout_type_index (integer_type_node
);
2014 stabstr_D (int_size_in_bytes (type
));
2019 if (use_gnu_debug_info_extensions
)
2022 stabstr_D (BITS_PER_UNIT
* int_size_in_bytes (type
));
2023 stabstr_S (";-16;");
2025 else /* Define as enumeral type (False, True) */
2026 stabstr_S ("eFalse:0,True:1,;");
2030 /* Differs from the REAL_TYPE by its new data type number.
2031 R3 is NF_COMPLEX. We don't try to use any of the other NF_*
2032 codes since gdb doesn't care anyway. */
2034 if (TREE_CODE (TREE_TYPE (type
)) == REAL_TYPE
)
2037 stabstr_D (2 * int_size_in_bytes (TREE_TYPE (type
)));
2042 /* Output a complex integer type as a structure,
2043 pending some other way to do it. */
2045 stabstr_D (int_size_in_bytes (type
));
2047 stabstr_S ("real:");
2048 dbxout_type (TREE_TYPE (type
), 0);
2050 stabstr_D (TYPE_PRECISION (TREE_TYPE (type
)));
2052 stabstr_S (";imag:");
2053 dbxout_type (TREE_TYPE (type
), 0);
2055 stabstr_D (TYPE_PRECISION (TREE_TYPE (type
)));
2057 stabstr_D (TYPE_PRECISION (TREE_TYPE (type
)));
2063 /* Make arrays of packed bits look like bitstrings for chill. */
2064 if (TYPE_PACKED (type
) && use_gnu_debug_info_extensions
)
2067 stabstr_D (BITS_PER_UNIT
* int_size_in_bytes (type
));
2068 stabstr_S (";@S;S");
2069 dbxout_type (TYPE_DOMAIN (type
), 0);
2073 /* Output "a" followed by a range type definition
2074 for the index type of the array
2075 followed by a reference to the target-type.
2076 ar1;0;N;M for a C array of type M and size N+1. */
2077 /* Check if a character string type, which in Chill is
2078 different from an array of characters. */
2079 if (TYPE_STRING_FLAG (type
) && use_gnu_debug_info_extensions
)
2083 tem
= TYPE_DOMAIN (type
);
2087 dbxout_type_index (integer_type_node
);
2088 stabstr_S (";0;-1;");
2093 dbxout_range_type (tem
, TYPE_MIN_VALUE (tem
), TYPE_MAX_VALUE (tem
));
2096 dbxout_type (TREE_TYPE (type
), 0);
2100 /* Make vectors look like an array. */
2101 if (use_gnu_debug_info_extensions
)
2104 /* Output "a" followed by a range type definition
2105 for the index type of the array
2106 followed by a reference to the target-type.
2107 ar1;0;N;M for a C array of type M and size N+1. */
2109 dbxout_range_type (integer_type_node
, size_zero_node
,
2110 size_int (TYPE_VECTOR_SUBPARTS (type
) - 1));
2112 dbxout_type (TREE_TYPE (type
), 0);
2117 case QUAL_UNION_TYPE
:
2119 tree binfo
= TYPE_BINFO (type
);
2121 /* Output a structure type. We must use the same test here as we
2122 use in the DBX_NO_XREFS case above. */
2123 if ((TYPE_NAME (type
) != 0
2124 && ! (TREE_CODE (TYPE_NAME (type
)) == TYPE_DECL
2125 && DECL_IGNORED_P (TYPE_NAME (type
)))
2127 || !COMPLETE_TYPE_P (type
)
2128 /* No way in DBX fmt to describe a variable size. */
2129 || ! tree_fits_uhwi_p (TYPE_SIZE (type
)))
2131 /* If the type is just a cross reference, output one
2132 and mark the type as partially described.
2133 If it later becomes defined, we will output
2134 its real definition.
2135 If the type has a name, don't nest its definition within
2136 another type's definition; instead, output an xref
2137 and let the definition come when the name is defined. */
2138 stabstr_S ((TREE_CODE (type
) == RECORD_TYPE
) ? "xs" : "xu");
2139 if (TYPE_IDENTIFIER (type
))
2141 /* Note that the C frontend creates for anonymous variable
2142 length records/unions TYPE_NAME with DECL_NAME NULL. */
2143 dbxout_type_name (type
);
2148 stabstr_D (anonymous_type_number
++);
2152 typevec
[TYPE_SYMTAB_ADDRESS (type
)].status
= TYPE_XREF
;
2156 /* Identify record or union, and print its size. */
2157 stabstr_C ((TREE_CODE (type
) == RECORD_TYPE
) ? 's' : 'u');
2158 stabstr_D (int_size_in_bytes (type
));
2164 vec
<tree
, va_gc
> *accesses
= BINFO_BASE_ACCESSES (binfo
);
2166 if (use_gnu_debug_info_extensions
)
2168 if (BINFO_N_BASE_BINFOS (binfo
))
2171 stabstr_U (BINFO_N_BASE_BINFOS (binfo
));
2175 for (i
= 0; BINFO_BASE_ITERATE (binfo
, i
, child
); i
++)
2177 tree access
= (accesses
? (*accesses
)[i
] : access_public_node
);
2179 if (use_gnu_debug_info_extensions
)
2181 stabstr_C (BINFO_VIRTUAL_P (child
) ? '1' : '0');
2182 stabstr_C (access
== access_public_node
? '2' :
2183 access
== access_protected_node
2185 if (BINFO_VIRTUAL_P (child
)
2187 || strcmp (lang_hooks
.name
, "GNU Objective-C++") == 0))
2188 /* For a virtual base, print the (negative)
2189 offset within the vtable where we must look
2190 to find the necessary adjustment. */
2192 (tree_to_shwi (BINFO_VPTR_FIELD (child
))
2195 stabstr_D (tree_to_shwi (BINFO_OFFSET (child
))
2198 dbxout_type (BINFO_TYPE (child
), 0);
2203 /* Print out the base class information with
2204 fields which have the same names at the types
2206 dbxout_type_name (BINFO_TYPE (child
));
2208 dbxout_type (BINFO_TYPE (child
), full
);
2210 stabstr_D (tree_to_shwi (BINFO_OFFSET (child
))
2214 (tree_to_shwi (TYPE_SIZE (BINFO_TYPE (child
)))
2222 /* Write out the field declarations. */
2223 dbxout_type_fields (type
);
2224 if (use_gnu_debug_info_extensions
&& TYPE_METHODS (type
) != NULL_TREE
)
2226 dbxout_type_methods (type
);
2231 if (use_gnu_debug_info_extensions
&& TREE_CODE (type
) == RECORD_TYPE
2232 /* Avoid the ~ if we don't really need it--it confuses dbx. */
2233 && TYPE_VFIELD (type
))
2236 /* We need to write out info about what field this class
2237 uses as its "main" vtable pointer field, because if this
2238 field is inherited from a base class, GDB cannot necessarily
2239 figure out which field it's using in time. */
2241 dbxout_type (DECL_FCONTEXT (TYPE_VFIELD (type
)), 0);
2247 /* We must use the same test here as we use in the DBX_NO_XREFS case
2248 above. We simplify it a bit since an enum will never have a variable
2250 if ((TYPE_NAME (type
) != 0
2251 && ! (TREE_CODE (TYPE_NAME (type
)) == TYPE_DECL
2252 && DECL_IGNORED_P (TYPE_NAME (type
)))
2254 || !COMPLETE_TYPE_P (type
))
2257 dbxout_type_name (type
);
2258 typevec
[TYPE_SYMTAB_ADDRESS (type
)].status
= TYPE_XREF
;
2262 if (use_gnu_debug_info_extensions
2263 && TYPE_PRECISION (type
) != TYPE_PRECISION (integer_type_node
))
2266 stabstr_D (TYPE_PRECISION (type
));
2271 for (tem
= TYPE_VALUES (type
); tem
; tem
= TREE_CHAIN (tem
))
2273 tree value
= TREE_VALUE (tem
);
2275 stabstr_I (TREE_PURPOSE (tem
));
2278 if (TREE_CODE (value
) == CONST_DECL
)
2279 value
= DECL_INITIAL (value
);
2281 if (cst_and_fits_in_hwi (value
))
2282 stabstr_D (TREE_INT_CST_LOW (value
));
2287 if (TREE_CHAIN (tem
) != 0)
2296 dbxout_type (TREE_TYPE (type
), 0);
2300 if (use_gnu_debug_info_extensions
)
2304 /* Write the argument types out longhand. */
2305 dbxout_type (TYPE_METHOD_BASETYPE (type
), 0);
2307 dbxout_type (TREE_TYPE (type
), 0);
2308 dbxout_args (TYPE_ARG_TYPES (type
));
2312 /* Treat it as a function type. */
2313 dbxout_type (TREE_TYPE (type
), 0);
2317 if (use_gnu_debug_info_extensions
)
2320 dbxout_type (TYPE_OFFSET_BASETYPE (type
), 0);
2322 dbxout_type (TREE_TYPE (type
), 0);
2325 /* Should print as an int, because it is really just an offset. */
2326 dbxout_type (integer_type_node
, 0);
2329 case REFERENCE_TYPE
:
2330 if (use_gnu_debug_info_extensions
)
2336 dbxout_type (TREE_TYPE (type
), 0);
2341 dbxout_type (TREE_TYPE (type
), 0);
2344 case POINTER_BOUNDS_TYPE
:
2345 /* No debug info for pointer bounds type supported yet. */
2349 /* A C++ function with deduced return type can have a TEMPLATE_TYPE_PARM
2350 named 'auto' in its type.
2351 No debug info for TEMPLATE_TYPE_PARM type supported yet. */
2352 if (lang_GNU_CXX ())
2354 tree name
= TYPE_IDENTIFIER (type
);
2355 if (name
== get_identifier ("auto")
2356 || name
== get_identifier ("decltype(auto)"))
2364 /* Return nonzero if the given type represents an integer whose bounds
2365 should be printed in octal format. */
2368 print_int_cst_bounds_in_octal_p (tree type
, tree low
, tree high
)
2370 /* If we can use GDB extensions and the size is wider than a long
2371 (the size used by GDB to read them) or we may have trouble writing
2372 the bounds the usual way, write them in octal. Note the test is for
2373 the *target's* size of "long", not that of the host. The host test
2374 is just to make sure we can write it out in case the host wide int
2375 is narrower than the target "long".
2377 For unsigned types, we use octal if they are the same size or larger.
2378 This is because we print the bounds as signed decimal, and hence they
2379 can't span same size unsigned types. */
2381 if (use_gnu_debug_info_extensions
2382 && low
&& TREE_CODE (low
) == INTEGER_CST
2383 && high
&& TREE_CODE (high
) == INTEGER_CST
2384 && (TYPE_PRECISION (type
) > TYPE_PRECISION (integer_type_node
)
2385 || ((TYPE_PRECISION (type
) == TYPE_PRECISION (integer_type_node
))
2386 && TYPE_UNSIGNED (type
))
2387 || TYPE_PRECISION (type
) > HOST_BITS_PER_WIDE_INT
2388 || (TYPE_PRECISION (type
) == HOST_BITS_PER_WIDE_INT
2389 && TYPE_UNSIGNED (type
))))
2395 /* Output the name of type TYPE, with no punctuation.
2396 Such names can be set up either by typedef declarations
2397 or by struct, enum and union tags. */
2400 dbxout_type_name (tree type
)
2402 tree t
= TYPE_NAME (type
);
2405 switch (TREE_CODE (t
))
2407 case IDENTIFIER_NODE
:
2419 /* Output leading leading struct or class names needed for qualifying
2420 type whose scope is limited to a struct or class. */
2423 dbxout_class_name_qualifiers (tree decl
)
2425 tree context
= decl_type_context (decl
);
2427 if (context
!= NULL_TREE
2428 && TREE_CODE (context
) == RECORD_TYPE
2429 && TYPE_NAME (context
) != 0
2430 && (TREE_CODE (TYPE_NAME (context
)) == IDENTIFIER_NODE
2431 || (DECL_NAME (TYPE_NAME (context
)) != 0)))
2433 tree name
= TYPE_NAME (context
);
2435 if (TREE_CODE (name
) == TYPE_DECL
)
2437 dbxout_class_name_qualifiers (name
);
2438 name
= DECL_NAME (name
);
2445 /* This is a specialized subset of expand_expr for use by dbxout_symbol in
2446 evaluating DECL_VALUE_EXPR. In particular, we stop if we find decls that
2447 haven't been expanded, or if the expression is getting so complex we won't
2448 be able to represent it in stabs anyway. Returns NULL on failure. */
2451 dbxout_expand_expr (tree expr
)
2453 switch (TREE_CODE (expr
))
2456 /* We can't handle emulated tls variables, because the address is an
2457 offset to the return value of __emutls_get_address, and there is no
2458 way to express that in stabs. Also, there are name mangling issues
2459 here. We end up with references to undefined symbols if we don't
2460 disable debug info for these variables. */
2461 if (!targetm
.have_tls
&& DECL_THREAD_LOCAL_P (expr
))
2463 if (TREE_STATIC (expr
)
2464 && !TREE_ASM_WRITTEN (expr
)
2465 && !DECL_HAS_VALUE_EXPR_P (expr
)
2466 && !TREE_PUBLIC (expr
)
2467 && DECL_RTL_SET_P (expr
)
2468 && MEM_P (DECL_RTL (expr
)))
2470 /* If this is a var that might not be actually output,
2471 return NULL, otherwise stabs might reference an undefined
2473 varpool_node
*node
= varpool_node::get (expr
);
2474 if (!node
|| !node
->definition
)
2481 if (DECL_HAS_VALUE_EXPR_P (expr
))
2482 return dbxout_expand_expr (DECL_VALUE_EXPR (expr
));
2486 return DECL_RTL_IF_SET (expr
);
2489 return expand_expr (expr
, NULL_RTX
, VOIDmode
, EXPAND_INITIALIZER
);
2493 case ARRAY_RANGE_REF
:
2497 HOST_WIDE_INT bitsize
, bitpos
;
2499 int volatilep
= 0, unsignedp
= 0;
2502 tem
= get_inner_reference (expr
, &bitsize
, &bitpos
, &offset
,
2503 &mode
, &unsignedp
, &volatilep
, true);
2505 x
= dbxout_expand_expr (tem
);
2506 if (x
== NULL
|| !MEM_P (x
))
2510 if (!tree_fits_shwi_p (offset
))
2512 x
= adjust_address_nv (x
, mode
, tree_to_shwi (offset
));
2515 x
= adjust_address_nv (x
, mode
, bitpos
/ BITS_PER_UNIT
);
2525 /* Helper function for output_used_types. Queue one entry from the
2526 used types hash to be output. */
2529 output_used_types_helper (tree
const &type
, vec
<tree
> *types_p
)
2531 if ((TREE_CODE (type
) == RECORD_TYPE
2532 || TREE_CODE (type
) == UNION_TYPE
2533 || TREE_CODE (type
) == QUAL_UNION_TYPE
2534 || TREE_CODE (type
) == ENUMERAL_TYPE
)
2535 && TYPE_STUB_DECL (type
)
2536 && DECL_P (TYPE_STUB_DECL (type
))
2537 && ! DECL_IGNORED_P (TYPE_STUB_DECL (type
)))
2538 types_p
->quick_push (TYPE_STUB_DECL (type
));
2539 else if (TYPE_NAME (type
)
2540 && TREE_CODE (TYPE_NAME (type
)) == TYPE_DECL
)
2541 types_p
->quick_push (TYPE_NAME (type
));
2546 /* This is a qsort callback which sorts types and declarations into a
2547 predictable order (types, then declarations, sorted by UID
2551 output_types_sort (const void *pa
, const void *pb
)
2553 const tree lhs
= *((const tree
*)pa
);
2554 const tree rhs
= *((const tree
*)pb
);
2559 return TYPE_UID (lhs
) - TYPE_UID (rhs
);
2568 return DECL_UID (lhs
) - DECL_UID (rhs
);
2573 /* Force all types used by this function to be output in debug
2577 output_used_types (void)
2579 if (cfun
&& cfun
->used_types_hash
)
2585 types
.create (cfun
->used_types_hash
->elements ());
2586 cfun
->used_types_hash
->traverse
<vec
<tree
> *, output_used_types_helper
>
2589 /* Sort by UID to prevent dependence on hash table ordering. */
2590 types
.qsort (output_types_sort
);
2592 FOR_EACH_VEC_ELT (types
, i
, type
)
2593 debug_queue_symbol (type
);
2599 /* Output a .stabs for the symbol defined by DECL,
2600 which must be a ..._DECL node in the normal namespace.
2601 It may be a CONST_DECL, a FUNCTION_DECL, a PARM_DECL or a VAR_DECL.
2602 LOCAL is nonzero if the scope is less than the entire file.
2603 Return 1 if a stabs might have been emitted. */
2606 dbxout_symbol (tree decl
, int local ATTRIBUTE_UNUSED
)
2608 tree type
= TREE_TYPE (decl
);
2609 tree context
= NULL_TREE
;
2613 /* "Intercept" dbxout_symbol() calls like we do all debug_hooks. */
2616 /* Ignore nameless syms, but don't ignore type tags. */
2618 if ((DECL_NAME (decl
) == 0 && TREE_CODE (decl
) != TYPE_DECL
)
2619 || DECL_IGNORED_P (decl
))
2620 DBXOUT_DECR_NESTING_AND_RETURN (0);
2622 /* If we are to generate only the symbols actually used then such
2623 symbol nodes are flagged with TREE_USED. Ignore any that
2624 aren't flagged as TREE_USED. */
2626 if (flag_debug_only_used_symbols
2627 && (!TREE_USED (decl
)
2628 && (TREE_CODE (decl
) != VAR_DECL
|| !DECL_INITIAL (decl
))))
2629 DBXOUT_DECR_NESTING_AND_RETURN (0);
2631 /* If dbxout_init has not yet run, queue this symbol for later. */
2634 preinit_symbols
= tree_cons (0, decl
, preinit_symbols
);
2635 DBXOUT_DECR_NESTING_AND_RETURN (0);
2638 if (flag_debug_only_used_symbols
)
2642 /* We now have a used symbol. We need to generate the info for
2643 the symbol's type in addition to the symbol itself. These
2644 type symbols are queued to be generated after were done with
2645 the symbol itself (otherwise they would fight over the
2648 Note, because the TREE_TYPE(type) might be something like a
2649 pointer to a named type we need to look for the first name
2650 we see following the TREE_TYPE chain. */
2653 while (POINTER_TYPE_P (t
))
2656 /* RECORD_TYPE, UNION_TYPE, QUAL_UNION_TYPE, and ENUMERAL_TYPE
2657 need special treatment. The TYPE_STUB_DECL field in these
2658 types generally represents the tag name type we want to
2659 output. In addition there could be a typedef type with
2660 a different name. In that case we also want to output
2663 if (TREE_CODE (t
) == RECORD_TYPE
2664 || TREE_CODE (t
) == UNION_TYPE
2665 || TREE_CODE (t
) == QUAL_UNION_TYPE
2666 || TREE_CODE (t
) == ENUMERAL_TYPE
)
2668 if (TYPE_STUB_DECL (t
)
2669 && TYPE_STUB_DECL (t
) != decl
2670 && DECL_P (TYPE_STUB_DECL (t
))
2671 && ! DECL_IGNORED_P (TYPE_STUB_DECL (t
)))
2673 debug_queue_symbol (TYPE_STUB_DECL (t
));
2675 && TYPE_NAME (t
) != TYPE_STUB_DECL (t
)
2676 && TYPE_NAME (t
) != decl
2677 && DECL_P (TYPE_NAME (t
)))
2678 debug_queue_symbol (TYPE_NAME (t
));
2681 else if (TYPE_NAME (t
)
2682 && TYPE_NAME (t
) != decl
2683 && DECL_P (TYPE_NAME (t
)))
2684 debug_queue_symbol (TYPE_NAME (t
));
2687 emit_pending_bincls_if_required ();
2689 switch (TREE_CODE (decl
))
2692 /* Enum values are defined by defining the enum type. */
2696 decl_rtl
= DECL_RTL_IF_SET (decl
);
2698 DBXOUT_DECR_NESTING_AND_RETURN (0);
2699 if (DECL_EXTERNAL (decl
))
2701 /* Don't mention a nested function under its parent. */
2702 context
= decl_function_context (decl
);
2703 if (context
== current_function_decl
)
2705 /* Don't mention an inline instance of a nested function. */
2706 if (context
&& DECL_FROM_INLINE (decl
))
2708 if (!MEM_P (decl_rtl
)
2709 || GET_CODE (XEXP (decl_rtl
, 0)) != SYMBOL_REF
)
2712 if (flag_debug_only_used_symbols
)
2713 output_used_types ();
2715 dbxout_begin_complex_stabs ();
2716 stabstr_I (DECL_ASSEMBLER_NAME (decl
));
2717 stabstr_S (TREE_PUBLIC (decl
) ? ":F" : ":f");
2720 if (TREE_TYPE (type
))
2721 dbxout_type (TREE_TYPE (type
), 0);
2723 dbxout_type (void_type_node
, 0);
2725 /* For a nested function, when that function is compiled,
2726 mention the containing function name
2727 as well as (since dbx wants it) our own assembler-name. */
2731 stabstr_I (DECL_ASSEMBLER_NAME (decl
));
2733 stabstr_I (DECL_NAME (context
));
2736 dbxout_finish_complex_stabs (decl
, N_FUN
, XEXP (decl_rtl
, 0), 0, 0);
2740 /* Don't output the same typedef twice.
2741 And don't output what language-specific stuff doesn't want output. */
2742 if (TREE_ASM_WRITTEN (decl
) || TYPE_DECL_SUPPRESS_DEBUG (decl
))
2743 DBXOUT_DECR_NESTING_AND_RETURN (0);
2745 /* Don't output typedefs for types with magic type numbers (XCOFF). */
2746 #ifdef DBX_ASSIGN_FUNDAMENTAL_TYPE_NUMBER
2748 int fundamental_type_number
=
2749 DBX_ASSIGN_FUNDAMENTAL_TYPE_NUMBER (decl
);
2751 if (fundamental_type_number
!= 0)
2753 TREE_ASM_WRITTEN (decl
) = 1;
2754 TYPE_SYMTAB_ADDRESS (TREE_TYPE (decl
)) = fundamental_type_number
;
2755 DBXOUT_DECR_NESTING_AND_RETURN (0);
2765 if (DECL_NAME (decl
))
2767 /* Nonzero means we must output a tag as well as a typedef. */
2770 /* Handle the case of a C++ structure or union
2771 where the TYPE_NAME is a TYPE_DECL
2772 which gives both a typedef name and a tag. */
2773 /* dbx requires the tag first and the typedef second. */
2774 if ((TREE_CODE (type
) == RECORD_TYPE
2775 || TREE_CODE (type
) == UNION_TYPE
2776 || TREE_CODE (type
) == QUAL_UNION_TYPE
)
2777 && TYPE_NAME (type
) == decl
2778 && !use_gnu_debug_info_extensions
2779 && !TREE_ASM_WRITTEN (TYPE_NAME (type
))
2780 /* Distinguish the implicit typedefs of C++
2781 from explicit ones that might be found in C. */
2782 && DECL_ARTIFICIAL (decl
)
2783 /* Do not generate a tag for incomplete records. */
2784 && COMPLETE_TYPE_P (type
)
2785 /* Do not generate a tag for records of variable size,
2786 since this type can not be properly described in the
2787 DBX format, and it confuses some tools such as objdump. */
2788 && tree_fits_uhwi_p (TYPE_SIZE (type
)))
2790 tree name
= TYPE_IDENTIFIER (type
);
2792 dbxout_begin_complex_stabs ();
2795 dbxout_type (type
, 1);
2796 dbxout_finish_complex_stabs (0, DBX_TYPE_DECL_STABS_CODE
,
2800 dbxout_begin_complex_stabs ();
2802 /* Output leading class/struct qualifiers. */
2803 if (use_gnu_debug_info_extensions
)
2804 dbxout_class_name_qualifiers (decl
);
2806 /* Output typedef name. */
2807 stabstr_I (DECL_NAME (decl
));
2810 /* Short cut way to output a tag also. */
2811 if ((TREE_CODE (type
) == RECORD_TYPE
2812 || TREE_CODE (type
) == UNION_TYPE
2813 || TREE_CODE (type
) == QUAL_UNION_TYPE
)
2814 && TYPE_NAME (type
) == decl
2815 /* Distinguish the implicit typedefs of C++
2816 from explicit ones that might be found in C. */
2817 && DECL_ARTIFICIAL (decl
))
2819 if (use_gnu_debug_info_extensions
)
2822 TREE_ASM_WRITTEN (TYPE_NAME (type
)) = 1;
2827 dbxout_type (type
, 1);
2828 dbxout_finish_complex_stabs (decl
, DBX_TYPE_DECL_STABS_CODE
,
2833 /* Don't output a tag if this is an incomplete type. This prevents
2834 the sun4 Sun OS 4.x dbx from crashing. */
2836 if (tag_needed
&& TYPE_NAME (type
) != 0
2837 && (TREE_CODE (TYPE_NAME (type
)) == IDENTIFIER_NODE
2838 || (DECL_NAME (TYPE_NAME (type
)) != 0))
2839 && COMPLETE_TYPE_P (type
)
2840 && !TREE_ASM_WRITTEN (TYPE_NAME (type
)))
2842 /* For a TYPE_DECL with no name, but the type has a name,
2844 This is what represents `struct foo' with no typedef. */
2845 /* In C++, the name of a type is the corresponding typedef.
2846 In C, it is an IDENTIFIER_NODE. */
2847 tree name
= TYPE_IDENTIFIER (type
);
2849 dbxout_begin_complex_stabs ();
2852 dbxout_type (type
, 1);
2853 dbxout_finish_complex_stabs (0, DBX_TYPE_DECL_STABS_CODE
, 0, 0, 0);
2857 /* If an enum type has no name, it cannot be referred to, but
2858 we must output it anyway, to record the enumeration
2861 if (!did_output
&& TREE_CODE (type
) == ENUMERAL_TYPE
)
2863 dbxout_begin_complex_stabs ();
2864 /* Some debuggers fail when given NULL names, so give this a
2865 harmless name of " " (Why not "(anon)"?). */
2867 dbxout_type (type
, 1);
2868 dbxout_finish_complex_stabs (0, DBX_TYPE_DECL_STABS_CODE
, 0, 0, 0);
2871 /* Prevent duplicate output of a typedef. */
2872 TREE_ASM_WRITTEN (decl
) = 1;
2877 if (DECL_HAS_VALUE_EXPR_P (decl
))
2878 decl
= DECL_VALUE_EXPR (decl
);
2880 /* PARM_DECLs go in their own separate chain and are output by
2881 dbxout_reg_parms and dbxout_parms, except for those that are
2882 disguised VAR_DECLs like Out parameters in Ada. */
2883 gcc_assert (TREE_CODE (decl
) == VAR_DECL
);
2885 /* ... fall through ... */
2889 /* Don't mention a variable that is external.
2890 Let the file that defines it describe it. */
2891 if (DECL_EXTERNAL (decl
))
2894 /* If the variable is really a constant
2895 and not written in memory, inform the debugger.
2897 ??? Why do we skip emitting the type and location in this case? */
2898 if (TREE_STATIC (decl
) && TREE_READONLY (decl
)
2899 && DECL_INITIAL (decl
) != 0
2900 && tree_fits_shwi_p (DECL_INITIAL (decl
))
2901 && ! TREE_ASM_WRITTEN (decl
)
2902 && (DECL_FILE_SCOPE_P (decl
)
2903 || TREE_CODE (DECL_CONTEXT (decl
)) == BLOCK
2904 || TREE_CODE (DECL_CONTEXT (decl
)) == NAMESPACE_DECL
)
2905 && TREE_PUBLIC (decl
) == 0)
2907 /* The sun4 assembler does not grok this. */
2909 if (TREE_CODE (TREE_TYPE (decl
)) == INTEGER_TYPE
2910 || TREE_CODE (TREE_TYPE (decl
)) == ENUMERAL_TYPE
)
2912 HOST_WIDE_INT ival
= tree_to_shwi (DECL_INITIAL (decl
));
2914 dbxout_begin_complex_stabs ();
2915 dbxout_symbol_name (decl
, NULL
, 'c');
2918 dbxout_finish_complex_stabs (0, N_LSYM
, 0, 0, 0);
2919 DBXOUT_DECR_NESTING
;
2925 /* else it is something we handle like a normal variable. */
2927 decl_rtl
= dbxout_expand_expr (decl
);
2929 DBXOUT_DECR_NESTING_AND_RETURN (0);
2931 if (!is_global_var (decl
))
2932 decl_rtl
= eliminate_regs (decl_rtl
, VOIDmode
, NULL_RTX
);
2933 #ifdef LEAF_REG_REMAP
2934 if (crtl
->uses_only_leaf_regs
)
2935 leaf_renumber_regs_insn (decl_rtl
);
2938 result
= dbxout_symbol_location (decl
, type
, 0, decl_rtl
);
2944 DBXOUT_DECR_NESTING
;
2948 /* Output the stab for DECL, a VAR_DECL, RESULT_DECL or PARM_DECL.
2949 Add SUFFIX to its name, if SUFFIX is not 0.
2950 Describe the variable as residing in HOME
2951 (usually HOME is DECL_RTL (DECL), but not always).
2952 Returns 1 if the stab was really emitted. */
2955 dbxout_symbol_location (tree decl
, tree type
, const char *suffix
, rtx home
)
2958 stab_code_type code
;
2963 /* Don't mention a variable at all
2964 if it was completely optimized into nothingness.
2966 If the decl was from an inline function, then its rtl
2967 is not identically the rtl that was used in this
2968 particular compilation. */
2969 if (GET_CODE (home
) == SUBREG
)
2973 while (GET_CODE (value
) == SUBREG
)
2974 value
= SUBREG_REG (value
);
2977 if (REGNO (value
) >= FIRST_PSEUDO_REGISTER
)
2980 home
= alter_subreg (&home
, true);
2984 regno
= REGNO (home
);
2985 if (regno
>= FIRST_PSEUDO_REGISTER
)
2989 /* The kind-of-variable letter depends on where
2990 the variable is and on the scope of its name:
2991 G and N_GSYM for static storage and global scope,
2992 S for static storage and file scope,
2993 V for static storage and local scope,
2994 for those two, use N_LCSYM if data is in bss segment,
2995 N_STSYM if in data segment, N_FUN otherwise.
2996 (We used N_FUN originally, then changed to N_STSYM
2997 to please GDB. However, it seems that confused ld.
2998 Now GDB has been fixed to like N_FUN, says Kingdon.)
2999 no letter at all, and N_LSYM, for auto variable,
3000 r and N_RSYM for register variable. */
3002 if (MEM_P (home
) && GET_CODE (XEXP (home
, 0)) == SYMBOL_REF
)
3004 if (TREE_PUBLIC (decl
))
3009 if (NULL
!= dbxout_common_check (decl
, &offs
))
3018 addr
= XEXP (home
, 0);
3020 letter
= decl_function_context (decl
) ? 'V' : 'S';
3022 /* Some ports can transform a symbol ref into a label ref,
3023 because the symbol ref is too far away and has to be
3024 dumped into a constant pool. Alternatively, the symbol
3025 in the constant pool might be referenced by a different
3027 if (GET_CODE (addr
) == SYMBOL_REF
3028 && CONSTANT_POOL_ADDRESS_P (addr
))
3031 rtx tmp
= get_pool_constant_mark (addr
, &marked
);
3033 if (GET_CODE (tmp
) == SYMBOL_REF
)
3036 if (CONSTANT_POOL_ADDRESS_P (addr
))
3037 get_pool_constant_mark (addr
, &marked
);
3041 else if (GET_CODE (tmp
) == LABEL_REF
)
3047 /* If all references to the constant pool were optimized
3048 out, we just ignore the symbol. */
3053 /* This should be the same condition as in assemble_variable, but
3054 we don't have access to dont_output_data here. So, instead,
3055 we rely on the fact that error_mark_node initializers always
3056 end up in bss for C++ and never end up in bss for C. */
3057 if (DECL_INITIAL (decl
) == 0
3059 && DECL_INITIAL (decl
) == error_mark_node
))
3063 if (NULL
!= dbxout_common_check (decl
, &offs
))
3071 else if (DECL_IN_TEXT_SECTION (decl
))
3072 /* This is not quite right, but it's the closest
3073 of all the codes that Unix defines. */
3074 code
= DBX_STATIC_CONST_VAR_CODE
;
3077 /* Ultrix `as' seems to need this. */
3078 #ifdef DBX_STATIC_STAB_DATA_SECTION
3079 switch_to_section (data_section
);
3085 else if (regno
>= 0)
3089 number
= DBX_REGISTER_NUMBER (regno
);
3091 else if (MEM_P (home
)
3092 && (MEM_P (XEXP (home
, 0))
3093 || (REG_P (XEXP (home
, 0))
3094 && REGNO (XEXP (home
, 0)) != HARD_FRAME_POINTER_REGNUM
3095 && REGNO (XEXP (home
, 0)) != STACK_POINTER_REGNUM
3096 #if !HARD_FRAME_POINTER_IS_ARG_POINTER
3097 && REGNO (XEXP (home
, 0)) != ARG_POINTER_REGNUM
3100 /* If the value is indirect by memory or by a register
3101 that isn't the frame pointer
3102 then it means the object is variable-sized and address through
3103 that register or stack slot. DBX has no way to represent this
3104 so all we can do is output the variable as a pointer.
3105 If it's not a parameter, ignore it. */
3107 if (REG_P (XEXP (home
, 0)))
3111 if (REGNO (XEXP (home
, 0)) >= FIRST_PSEUDO_REGISTER
)
3113 number
= DBX_REGISTER_NUMBER (REGNO (XEXP (home
, 0)));
3118 /* RTL looks like (MEM (MEM (PLUS (REG...) (CONST_INT...)))).
3119 We want the value of that CONST_INT. */
3120 number
= DEBUGGER_AUTO_OFFSET (XEXP (XEXP (home
, 0), 0));
3123 /* Effectively do build_pointer_type, but don't cache this type,
3124 since it might be temporary whereas the type it points to
3125 might have been saved for inlining. */
3126 /* Don't use REFERENCE_TYPE because dbx can't handle that. */
3127 type
= make_node (POINTER_TYPE
);
3128 TREE_TYPE (type
) = TREE_TYPE (decl
);
3130 else if (MEM_P (home
)
3131 && REG_P (XEXP (home
, 0)))
3134 number
= DEBUGGER_AUTO_OFFSET (XEXP (home
, 0));
3136 else if (MEM_P (home
)
3137 && GET_CODE (XEXP (home
, 0)) == PLUS
3138 && CONST_INT_P (XEXP (XEXP (home
, 0), 1)))
3141 /* RTL looks like (MEM (PLUS (REG...) (CONST_INT...)))
3142 We want the value of that CONST_INT. */
3143 number
= DEBUGGER_AUTO_OFFSET (XEXP (home
, 0));
3145 else if (MEM_P (home
)
3146 && GET_CODE (XEXP (home
, 0)) == CONST
)
3148 /* Handle an obscure case which can arise when optimizing and
3149 when there are few available registers. (This is *always*
3150 the case for i386/i486 targets). The RTL looks like
3151 (MEM (CONST ...)) even though this variable is a local `auto'
3152 or a local `register' variable. In effect, what has happened
3153 is that the reload pass has seen that all assignments and
3154 references for one such a local variable can be replaced by
3155 equivalent assignments and references to some static storage
3156 variable, thereby avoiding the need for a register. In such
3157 cases we're forced to lie to debuggers and tell them that
3158 this variable was itself `static'. */
3162 if (NULL
== dbxout_common_check (decl
, &offs
))
3163 addr
= XEXP (XEXP (home
, 0), 0);
3171 else if (GET_CODE (home
) == CONCAT
)
3175 /* If TYPE is not a COMPLEX_TYPE (it might be a RECORD_TYPE,
3176 for example), then there is no easy way to figure out
3177 what SUBTYPE should be. So, we give up. */
3178 if (TREE_CODE (type
) != COMPLEX_TYPE
)
3181 subtype
= TREE_TYPE (type
);
3183 /* If the variable's storage is in two parts,
3184 output each as a separate stab with a modified name. */
3185 if (WORDS_BIG_ENDIAN
)
3186 dbxout_symbol_location (decl
, subtype
, "$imag", XEXP (home
, 0));
3188 dbxout_symbol_location (decl
, subtype
, "$real", XEXP (home
, 0));
3190 if (WORDS_BIG_ENDIAN
)
3191 dbxout_symbol_location (decl
, subtype
, "$real", XEXP (home
, 1));
3193 dbxout_symbol_location (decl
, subtype
, "$imag", XEXP (home
, 1));
3197 /* Address might be a MEM, when DECL is a variable-sized object.
3198 Or it might be const0_rtx, meaning previous passes
3199 want us to ignore this variable. */
3202 /* Ok, start a symtab entry and output the variable name. */
3203 emit_pending_bincls_if_required ();
3206 #ifdef DBX_STATIC_BLOCK_START
3207 DBX_STATIC_BLOCK_START (asm_out_file
, code
);
3210 dbxout_begin_complex_stabs_noforcetext ();
3211 dbxout_symbol_name (decl
, suffix
, letter
);
3212 dbxout_type (type
, 0);
3213 dbxout_finish_complex_stabs (decl
, code
, addr
, 0, number
);
3215 #ifdef DBX_STATIC_BLOCK_END
3216 DBX_STATIC_BLOCK_END (asm_out_file
, code
);
3221 /* Output the symbol name of DECL for a stabs, with suffix SUFFIX.
3222 Then output LETTER to indicate the kind of location the symbol has. */
3225 dbxout_symbol_name (tree decl
, const char *suffix
, int letter
)
3229 if (DECL_CONTEXT (decl
)
3230 && (TYPE_P (DECL_CONTEXT (decl
))
3231 || TREE_CODE (DECL_CONTEXT (decl
)) == NAMESPACE_DECL
))
3232 /* One slight hitch: if this is a VAR_DECL which is a class member
3233 or a namespace member, we must put out the mangled name instead of the
3234 DECL_NAME. Note also that static member (variable) names DO NOT begin
3235 with underscores in .stabs directives. */
3236 name
= DECL_ASSEMBLER_NAME (decl
);
3238 /* ...but if we're function-local, we don't want to include the junk
3239 added by ASM_FORMAT_PRIVATE_NAME. */
3240 name
= DECL_NAME (decl
);
3245 stabstr_S ("(anon)");
3255 /* Output the common block name for DECL in a stabs.
3257 Symbols in global common (.comm) get wrapped with an N_BCOMM/N_ECOMM pair
3258 around each group of symbols in the same .comm area. The N_GSYM stabs
3259 that are emitted only contain the offset in the common area. This routine
3260 emits the N_BCOMM and N_ECOMM stabs. */
3263 dbxout_common_name (tree decl
, const char *name
, stab_code_type op
)
3265 dbxout_begin_complex_stabs ();
3267 dbxout_finish_complex_stabs (decl
, op
, NULL_RTX
, NULL
, 0);
3270 /* Check decl to determine whether it is a VAR_DECL destined for storage in a
3271 common area. If it is, the return value will be a non-null string giving
3272 the name of the common storage block it will go into. If non-null, the
3273 value is the offset into the common block for that symbol's storage. */
3276 dbxout_common_check (tree decl
, int *value
)
3280 const char *name
= NULL
;
3282 /* If the decl isn't a VAR_DECL, or if it isn't static, or if
3283 it does not have a value (the offset into the common area), or if it
3284 is thread local (as opposed to global) then it isn't common, and shouldn't
3287 ??? DECL_THREAD_LOCAL_P check prevents problems with improper .stabs
3288 for thread-local symbols. Can be handled via same mechanism as used
3290 if (TREE_CODE (decl
) != VAR_DECL
3291 || !TREE_STATIC (decl
)
3292 || !DECL_HAS_VALUE_EXPR_P (decl
)
3293 || DECL_THREAD_LOCAL_P (decl
)
3297 home
= DECL_RTL (decl
);
3298 if (home
== NULL_RTX
|| GET_CODE (home
) != MEM
)
3301 sym_addr
= dbxout_expand_expr (DECL_VALUE_EXPR (decl
));
3302 if (sym_addr
== NULL_RTX
|| GET_CODE (sym_addr
) != MEM
)
3305 sym_addr
= XEXP (sym_addr
, 0);
3306 if (GET_CODE (sym_addr
) == CONST
)
3307 sym_addr
= XEXP (sym_addr
, 0);
3308 if ((GET_CODE (sym_addr
) == SYMBOL_REF
|| GET_CODE (sym_addr
) == PLUS
)
3309 && DECL_INITIAL (decl
) == 0)
3312 /* We have a sym that will go into a common area, meaning that it
3313 will get storage reserved with a .comm/.lcomm assembler pseudo-op.
3315 Determine name of common area this symbol will be an offset into,
3316 and offset into that area. Also retrieve the decl for the area
3317 that the symbol is offset into. */
3320 switch (GET_CODE (sym_addr
))
3323 if (CONST_INT_P (XEXP (sym_addr
, 0)))
3326 targetm
.strip_name_encoding (XSTR (XEXP (sym_addr
, 1), 0));
3327 *value
= INTVAL (XEXP (sym_addr
, 0));
3328 cdecl = SYMBOL_REF_DECL (XEXP (sym_addr
, 1));
3333 targetm
.strip_name_encoding (XSTR (XEXP (sym_addr
, 0), 0));
3334 *value
= INTVAL (XEXP (sym_addr
, 1));
3335 cdecl = SYMBOL_REF_DECL (XEXP (sym_addr
, 0));
3340 name
= targetm
.strip_name_encoding (XSTR (sym_addr
, 0));
3342 cdecl = SYMBOL_REF_DECL (sym_addr
);
3346 error ("common symbol debug info is not structured as "
3350 /* Check area common symbol is offset into. If this is not public, then
3351 it is not a symbol in a common block. It must be a .lcomm symbol, not
3353 if (cdecl == NULL
|| !TREE_PUBLIC (cdecl))
3362 /* Output definitions of all the decls in a chain. Return nonzero if
3363 anything was output */
3366 dbxout_syms (tree syms
)
3369 const char *comm_prev
= NULL
;
3370 tree syms_prev
= NULL
;
3374 int temp
, copen
, cclos
;
3375 const char *comm_new
;
3377 /* Check for common symbol, and then progression into a new/different
3378 block of common symbols. Emit closing/opening common bracket if
3380 comm_new
= dbxout_common_check (syms
, &temp
);
3381 copen
= comm_new
!= NULL
3382 && (comm_prev
== NULL
|| strcmp (comm_new
, comm_prev
));
3383 cclos
= comm_prev
!= NULL
3384 && (comm_new
== NULL
|| strcmp (comm_new
, comm_prev
));
3386 dbxout_common_name (syms_prev
, comm_prev
, N_ECOMM
);
3389 dbxout_common_name (syms
, comm_new
, N_BCOMM
);
3392 comm_prev
= comm_new
;
3394 result
+= dbxout_symbol (syms
, 1);
3395 syms
= DECL_CHAIN (syms
);
3398 if (comm_prev
!= NULL
)
3399 dbxout_common_name (syms_prev
, comm_prev
, N_ECOMM
);
3404 /* The following two functions output definitions of function parameters.
3405 Each parameter gets a definition locating it in the parameter list.
3406 Each parameter that is a register variable gets a second definition
3407 locating it in the register.
3409 Printing or argument lists in gdb uses the definitions that
3410 locate in the parameter list. But reference to the variable in
3411 expressions uses preferentially the definition as a register. */
3413 /* Output definitions, referring to storage in the parmlist,
3414 of all the parms in PARMS, which is a chain of PARM_DECL nodes. */
3417 dbxout_parms (tree parms
)
3420 emit_pending_bincls_if_required ();
3422 for (; parms
; parms
= DECL_CHAIN (parms
))
3423 if (DECL_NAME (parms
)
3424 && TREE_TYPE (parms
) != error_mark_node
3425 && DECL_RTL_SET_P (parms
)
3426 && DECL_INCOMING_RTL (parms
))
3430 stab_code_type code
;
3433 /* Perform any necessary register eliminations on the parameter's rtl,
3434 so that the debugging output will be accurate. */
3435 DECL_INCOMING_RTL (parms
)
3436 = eliminate_regs (DECL_INCOMING_RTL (parms
), VOIDmode
, NULL_RTX
);
3437 SET_DECL_RTL (parms
,
3438 eliminate_regs (DECL_RTL (parms
), VOIDmode
, NULL_RTX
));
3439 #ifdef LEAF_REG_REMAP
3440 if (crtl
->uses_only_leaf_regs
)
3442 leaf_renumber_regs_insn (DECL_INCOMING_RTL (parms
));
3443 leaf_renumber_regs_insn (DECL_RTL (parms
));
3447 if (PARM_PASSED_IN_MEMORY (parms
))
3449 rtx inrtl
= XEXP (DECL_INCOMING_RTL (parms
), 0);
3451 /* ??? Here we assume that the parm address is indexed
3452 off the frame pointer or arg pointer.
3453 If that is not true, we produce meaningless results,
3454 but do not crash. */
3455 if (GET_CODE (inrtl
) == PLUS
3456 && CONST_INT_P (XEXP (inrtl
, 1)))
3457 number
= INTVAL (XEXP (inrtl
, 1));
3462 number
= DEBUGGER_ARG_OFFSET (number
, inrtl
);
3465 /* It is quite tempting to use TREE_TYPE (parms) instead
3466 of DECL_ARG_TYPE (parms) for the eff_type, so that gcc
3467 reports the actual type of the parameter, rather than
3468 the promoted type. This certainly makes GDB's life
3469 easier, at least for some ports. The change is a bad
3470 idea however, since GDB expects to be able access the
3471 type without performing any conversions. So for
3472 example, if we were passing a float to an unprototyped
3473 function, gcc will store a double on the stack, but if
3474 we emit a stab saying the type is a float, then gdb
3475 will only read in a single value, and this will produce
3476 an erroneous value. */
3477 eff_type
= DECL_ARG_TYPE (parms
);
3479 else if (REG_P (DECL_RTL (parms
)))
3483 /* Parm passed in registers and lives in registers or nowhere. */
3484 code
= DBX_REGPARM_STABS_CODE
;
3485 letter
= DBX_REGPARM_STABS_LETTER
;
3487 /* For parms passed in registers, it is better to use the
3488 declared type of the variable, not the type it arrived in. */
3489 eff_type
= TREE_TYPE (parms
);
3491 /* If parm lives in a register, use that register; pretend
3492 the parm was passed there. It would be more consistent
3493 to describe the register where the parm was passed, but
3494 in practice that register usually holds something else.
3495 If the parm lives nowhere, use the register where it
3497 if (REGNO (DECL_RTL (parms
)) < FIRST_PSEUDO_REGISTER
)
3498 best_rtl
= DECL_RTL (parms
);
3499 else if (GET_CODE (DECL_INCOMING_RTL (parms
)) == PARALLEL
)
3500 best_rtl
= XEXP (XVECEXP (DECL_INCOMING_RTL (parms
), 0, 0), 0);
3502 best_rtl
= DECL_INCOMING_RTL (parms
);
3504 number
= DBX_REGISTER_NUMBER (REGNO (best_rtl
));
3506 else if (MEM_P (DECL_RTL (parms
))
3507 && REG_P (XEXP (DECL_RTL (parms
), 0))
3508 && REGNO (XEXP (DECL_RTL (parms
), 0)) != HARD_FRAME_POINTER_REGNUM
3509 && REGNO (XEXP (DECL_RTL (parms
), 0)) != STACK_POINTER_REGNUM
3510 #if !HARD_FRAME_POINTER_IS_ARG_POINTER
3511 && REGNO (XEXP (DECL_RTL (parms
), 0)) != ARG_POINTER_REGNUM
3515 /* Parm was passed via invisible reference.
3516 That is, its address was passed in a register.
3517 Output it as if it lived in that register.
3518 The debugger will know from the type
3519 that it was actually passed by invisible reference. */
3521 code
= DBX_REGPARM_STABS_CODE
;
3523 /* GDB likes this marked with a special letter. */
3524 letter
= (use_gnu_debug_info_extensions
3525 ? 'a' : DBX_REGPARM_STABS_LETTER
);
3526 eff_type
= TREE_TYPE (parms
);
3528 /* DECL_RTL looks like (MEM (REG...). Get the register number.
3529 If it is an unallocated pseudo-reg, then use the register where
3530 it was passed instead.
3531 ??? Why is DBX_REGISTER_NUMBER not used here? */
3533 if (REGNO (XEXP (DECL_RTL (parms
), 0)) < FIRST_PSEUDO_REGISTER
)
3534 number
= REGNO (XEXP (DECL_RTL (parms
), 0));
3536 number
= REGNO (DECL_INCOMING_RTL (parms
));
3538 else if (MEM_P (DECL_RTL (parms
))
3539 && MEM_P (XEXP (DECL_RTL (parms
), 0)))
3541 /* Parm was passed via invisible reference, with the reference
3542 living on the stack. DECL_RTL looks like
3543 (MEM (MEM (PLUS (REG ...) (CONST_INT ...)))) or it
3544 could look like (MEM (MEM (REG))). */
3548 eff_type
= TREE_TYPE (parms
);
3550 if (!REG_P (XEXP (XEXP (DECL_RTL (parms
), 0), 0)))
3551 number
= INTVAL (XEXP (XEXP (XEXP (DECL_RTL (parms
), 0), 0), 1));
3555 number
= DEBUGGER_ARG_OFFSET (number
,
3556 XEXP (XEXP (DECL_RTL (parms
), 0), 0));
3558 else if (MEM_P (DECL_RTL (parms
))
3559 && XEXP (DECL_RTL (parms
), 0) != const0_rtx
3560 /* ??? A constant address for a parm can happen
3561 when the reg it lives in is equiv to a constant in memory.
3562 Should make this not happen, after 2.4. */
3563 && ! CONSTANT_P (XEXP (DECL_RTL (parms
), 0)))
3565 /* Parm was passed in registers but lives on the stack. */
3569 eff_type
= TREE_TYPE (parms
);
3571 /* DECL_RTL looks like (MEM (PLUS (REG...) (CONST_INT...))),
3572 in which case we want the value of that CONST_INT,
3574 in which case we use a value of zero. */
3575 if (!REG_P (XEXP (DECL_RTL (parms
), 0)))
3576 number
= INTVAL (XEXP (XEXP (DECL_RTL (parms
), 0), 1));
3580 /* Make a big endian correction if the mode of the type of the
3581 parameter is not the same as the mode of the rtl. */
3582 if (BYTES_BIG_ENDIAN
3583 && TYPE_MODE (TREE_TYPE (parms
)) != GET_MODE (DECL_RTL (parms
))
3584 && GET_MODE_SIZE (TYPE_MODE (TREE_TYPE (parms
))) < UNITS_PER_WORD
)
3585 number
+= (GET_MODE_SIZE (GET_MODE (DECL_RTL (parms
)))
3586 - GET_MODE_SIZE (TYPE_MODE (TREE_TYPE (parms
))));
3589 /* ??? We don't know how to represent this argument. */
3592 dbxout_begin_complex_stabs ();
3594 if (DECL_NAME (parms
))
3596 stabstr_I (DECL_NAME (parms
));
3600 stabstr_S ("(anon):");
3602 dbxout_type (eff_type
, 0);
3603 dbxout_finish_complex_stabs (parms
, code
, 0, 0, number
);
3605 DBXOUT_DECR_NESTING
;
3608 /* Output definitions for the places where parms live during the function,
3609 when different from where they were passed, when the parms were passed
3612 It is not useful to do this for parms passed in registers
3613 that live during the function in different registers, because it is
3614 impossible to look in the passed register for the passed value,
3615 so we use the within-the-function register to begin with.
3617 PARMS is a chain of PARM_DECL nodes. */
3620 dbxout_reg_parms (tree parms
)
3624 for (; parms
; parms
= DECL_CHAIN (parms
))
3625 if (DECL_NAME (parms
) && PARM_PASSED_IN_MEMORY (parms
))
3627 /* Report parms that live in registers during the function
3628 but were passed in memory. */
3629 if (REG_P (DECL_RTL (parms
))
3630 && REGNO (DECL_RTL (parms
)) < FIRST_PSEUDO_REGISTER
)
3631 dbxout_symbol_location (parms
, TREE_TYPE (parms
),
3632 0, DECL_RTL (parms
));
3633 else if (GET_CODE (DECL_RTL (parms
)) == CONCAT
)
3634 dbxout_symbol_location (parms
, TREE_TYPE (parms
),
3635 0, DECL_RTL (parms
));
3636 /* Report parms that live in memory but not where they were passed. */
3637 else if (MEM_P (DECL_RTL (parms
))
3638 && ! rtx_equal_p (DECL_RTL (parms
), DECL_INCOMING_RTL (parms
)))
3639 dbxout_symbol_location (parms
, TREE_TYPE (parms
),
3640 0, DECL_RTL (parms
));
3642 DBXOUT_DECR_NESTING
;
3645 /* Given a chain of ..._TYPE nodes (as come in a parameter list),
3646 output definitions of those names, in raw form */
3649 dbxout_args (tree args
)
3654 dbxout_type (TREE_VALUE (args
), 0);
3655 args
= TREE_CHAIN (args
);
3659 #if defined (DBX_DEBUGGING_INFO)
3661 /* Subroutine of dbxout_block. Emit an N_LBRAC stab referencing LABEL.
3662 BEGIN_LABEL is the name of the beginning of the function, which may
3665 dbx_output_lbrac (const char *label
,
3666 const char *begin_label ATTRIBUTE_UNUSED
)
3668 dbxout_begin_stabn (N_LBRAC
);
3669 if (DBX_BLOCKS_FUNCTION_RELATIVE
)
3670 dbxout_stab_value_label_diff (label
, begin_label
);
3672 dbxout_stab_value_label (label
);
3675 /* Subroutine of dbxout_block. Emit an N_RBRAC stab referencing LABEL.
3676 BEGIN_LABEL is the name of the beginning of the function, which may
3679 dbx_output_rbrac (const char *label
,
3680 const char *begin_label ATTRIBUTE_UNUSED
)
3682 dbxout_begin_stabn (N_RBRAC
);
3683 if (DBX_BLOCKS_FUNCTION_RELATIVE
)
3684 dbxout_stab_value_label_diff (label
, begin_label
);
3686 dbxout_stab_value_label (label
);
3689 /* Output everything about a symbol block (a BLOCK node
3690 that represents a scope level),
3691 including recursive output of contained blocks.
3693 BLOCK is the BLOCK node.
3694 DEPTH is its depth within containing symbol blocks.
3695 ARGS is usually zero; but for the outermost block of the
3696 body of a function, it is a chain of PARM_DECLs for the function parameters.
3697 We output definitions of all the register parms
3698 as if they were local variables of that block.
3700 If -g1 was used, we count blocks just the same, but output nothing
3701 except for the outermost block.
3703 Actually, BLOCK may be several blocks chained together.
3704 We handle them all in sequence. */
3707 dbxout_block (tree block
, int depth
, tree args
)
3709 char begin_label
[20];
3710 /* Reference current function start using LFBB. */
3711 ASM_GENERATE_INTERNAL_LABEL (begin_label
, "LFBB", scope_labelno
);
3715 /* Ignore blocks never expanded or otherwise marked as real. */
3716 if (TREE_USED (block
) && TREE_ASM_WRITTEN (block
))
3719 int blocknum
= BLOCK_NUMBER (block
);
3721 /* In dbx format, the syms of a block come before the N_LBRAC.
3722 If nothing is output, we don't need the N_LBRAC, either. */
3724 if (debug_info_level
!= DINFO_LEVEL_TERSE
|| depth
== 0)
3725 did_output
= dbxout_syms (BLOCK_VARS (block
));
3727 dbxout_reg_parms (args
);
3729 /* Now output an N_LBRAC symbol to represent the beginning of
3730 the block. Use the block's tree-walk order to generate
3731 the assembler symbols LBBn and LBEn
3732 that final will define around the code in this block. */
3736 const char *scope_start
;
3739 /* The outermost block doesn't get LBB labels; use
3740 the LFBB local symbol emitted by dbxout_begin_prologue. */
3741 scope_start
= begin_label
;
3744 ASM_GENERATE_INTERNAL_LABEL (buf
, "LBB", blocknum
);
3748 dbx_output_lbrac (scope_start
, begin_label
);
3751 /* Output the subblocks. */
3752 dbxout_block (BLOCK_SUBBLOCKS (block
), depth
+ 1, NULL_TREE
);
3754 /* Refer to the marker for the end of the block. */
3759 /* The outermost block doesn't get LBE labels;
3760 use the "scope" label which will be emitted
3761 by dbxout_function_end. */
3762 ASM_GENERATE_INTERNAL_LABEL (buf
, "Lscope", scope_labelno
);
3764 ASM_GENERATE_INTERNAL_LABEL (buf
, "LBE", blocknum
);
3766 dbx_output_rbrac (buf
, begin_label
);
3769 block
= BLOCK_CHAIN (block
);
3773 /* Output the information about a function and its arguments and result.
3774 Usually this follows the function's code,
3775 but on some systems, it comes before. */
3778 dbxout_begin_function (tree decl
)
3780 int saved_tree_used1
;
3782 saved_tree_used1
= TREE_USED (decl
);
3783 TREE_USED (decl
) = 1;
3784 if (DECL_NAME (DECL_RESULT (decl
)) != 0)
3786 int saved_tree_used2
= TREE_USED (DECL_RESULT (decl
));
3787 TREE_USED (DECL_RESULT (decl
)) = 1;
3788 dbxout_symbol (decl
, 0);
3789 TREE_USED (DECL_RESULT (decl
)) = saved_tree_used2
;
3792 dbxout_symbol (decl
, 0);
3793 TREE_USED (decl
) = saved_tree_used1
;
3795 dbxout_parms (DECL_ARGUMENTS (decl
));
3796 if (DECL_NAME (DECL_RESULT (decl
)) != 0)
3797 dbxout_symbol (DECL_RESULT (decl
), 1);
3799 #endif /* DBX_DEBUGGING_INFO */
3801 #endif /* DBX_DEBUGGING_INFO || XCOFF_DEBUGGING_INFO */
3803 /* Record an element in the table of global destructors. SYMBOL is
3804 a SYMBOL_REF of the function to be called; PRIORITY is a number
3805 between 0 and MAX_INIT_PRIORITY. */
3808 default_stabs_asm_out_destructor (rtx symbol ATTRIBUTE_UNUSED
,
3809 int priority ATTRIBUTE_UNUSED
)
3811 #if defined DBX_DEBUGGING_INFO || defined XCOFF_DEBUGGING_INFO
3812 /* Tell GNU LD that this is part of the static destructor set.
3813 This will work for any system that uses stabs, most usefully
3815 dbxout_begin_simple_stabs ("___DTOR_LIST__", 22 /* N_SETT */);
3816 dbxout_stab_value_label (XSTR (symbol
, 0));
3818 sorry ("global destructors not supported on this target");
3822 /* Likewise for global constructors. */
3825 default_stabs_asm_out_constructor (rtx symbol ATTRIBUTE_UNUSED
,
3826 int priority ATTRIBUTE_UNUSED
)
3828 #if defined DBX_DEBUGGING_INFO || defined XCOFF_DEBUGGING_INFO
3829 /* Tell GNU LD that this is part of the static destructor set.
3830 This will work for any system that uses stabs, most usefully
3832 dbxout_begin_simple_stabs ("___CTOR_LIST__", 22 /* N_SETT */);
3833 dbxout_stab_value_label (XSTR (symbol
, 0));
3835 sorry ("global constructors not supported on this target");
3839 #include "gt-dbxout.h"