1 /* Output dbx-format symbol table information from GNU compiler.
2 Copyright (C) 1987, 1988, 1992 Free Software Foundation, Inc.
4 This file is part of GNU CC.
6 GNU CC is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU CC is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU CC; see the file COPYING. If not, write to
18 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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'. */
69 /* Include these first, because they may define MIN and MAX. */
78 #include "insn-config.h"
81 #include "output.h" /* ASM_OUTPUT_SOURCE_LINE may refer to sdb functions. */
87 #ifdef XCOFF_DEBUGGING_INFO
92 #define ASM_STABS_OP ".stabs"
96 #define ASM_STABN_OP ".stabn"
99 #ifndef DBX_TYPE_DECL_STABS_CODE
100 #define DBX_TYPE_DECL_STABS_CODE N_LSYM
103 #ifndef DBX_STATIC_CONST_VAR_CODE
104 #define DBX_STATIC_CONST_VAR_CODE N_FUN
107 #ifndef DBX_REGPARM_STABS_CODE
108 #define DBX_REGPARM_STABS_CODE N_RSYM
111 #ifndef DBX_REGPARM_STABS_LETTER
112 #define DBX_REGPARM_STABS_LETTER 'P'
115 #ifndef DBX_MEMPARM_STABS_LETTER
116 #define DBX_MEMPARM_STABS_LETTER 'p'
119 /* Nonzero means if the type has methods, only output debugging
120 information if methods are actually written to the asm file. */
122 static int flag_minimal_debug = 1;
124 /* Nonzero if we have actually used any of the GDB extensions
125 to the debugging format. The idea is that we use them for the
126 first time only if there's a strong reason, but once we have done that,
127 we use them whenever convenient. */
129 static int have_used_extensions = 0;
133 /* Typical USG systems don't have stab.h, and they also have
134 no use for DBX-format debugging info. */
136 #if defined (DBX_DEBUGGING_INFO) || defined (XCOFF_DEBUGGING_INFO)
138 #ifdef DEBUG_SYMS_TEXT
139 #define FORCE_TEXT text_section ();
144 #if defined (USG) || defined (NO_STAB_H)
145 #include "gstab.h" /* If doing DBX on sysV, use our own stab.h. */
147 #include <stab.h> /* On BSD, use the system's stab.h. */
149 /* This is a GNU extension we need to reference in this file. */
156 #define STAB_CODE_TYPE enum __stab_debug_code
158 #define STAB_CODE_TYPE int
161 /* 1 if PARM is passed to this function in memory. */
163 #define PARM_PASSED_IN_MEMORY(PARM) \
164 (GET_CODE (DECL_INCOMING_RTL (PARM)) == MEM)
166 /* A C expression for the integer offset value of an automatic variable
167 (N_LSYM) having address X (an RTX). */
168 #ifndef DEBUGGER_AUTO_OFFSET
169 #define DEBUGGER_AUTO_OFFSET(X) \
170 (GET_CODE (X) == PLUS ? INTVAL (XEXP (X, 1)) : 0)
173 /* A C expression for the integer offset value of an argument (N_PSYM)
174 having address X (an RTX). The nominal offset is OFFSET. */
175 #ifndef DEBUGGER_ARG_OFFSET
176 #define DEBUGGER_ARG_OFFSET(OFFSET, X) (OFFSET)
179 /* Stream for writing to assembler file. */
181 static FILE *asmfile;
183 /* Last source file name mentioned in a NOTE insn. */
185 static char *lastfile;
187 /* Current working directory. */
191 enum typestatus {TYPE_UNSEEN, TYPE_XREF, TYPE_DEFINED};
193 /* Vector recording the status of describing C data types.
194 When we first notice a data type (a tree node),
195 we assign it a number using next_type_number.
196 That is its index in this vector.
197 The vector element says whether we have yet output
198 the definition of the type. TYPE_XREF says we have
199 output it as a cross-reference only. */
201 enum typestatus *typevec;
203 /* Number of elements of space allocated in `typevec'. */
205 static int typevec_len;
207 /* In dbx output, each type gets a unique number.
208 This is the number for the next type output.
209 The number, once assigned, is in the TYPE_SYMTAB_ADDRESS field. */
211 static int next_type_number;
213 /* In dbx output, we must assign symbol-blocks id numbers
214 in the order in which their beginnings are encountered.
215 We output debugging info that refers to the beginning and
216 end of the ranges of code in each block
217 with assembler labels LBBn and LBEn, where n is the block number.
218 The labels are generated in final, which assigns numbers to the
219 blocks in the same way. */
221 static int next_block_number;
223 /* These variables are for dbxout_symbol to communicate to
224 dbxout_finish_symbol.
225 current_sym_code is the symbol-type-code, a symbol N_... define in stab.h.
226 current_sym_value and current_sym_addr are two ways to address the
227 value to store in the symtab entry.
228 current_sym_addr if nonzero represents the value as an rtx.
229 If that is zero, current_sym_value is used. This is used
230 when the value is an offset (such as for auto variables,
231 register variables and parms). */
233 static STAB_CODE_TYPE current_sym_code;
234 static int current_sym_value;
235 static rtx current_sym_addr;
237 /* Number of chars of symbol-description generated so far for the
238 current symbol. Used by CHARS and CONTIN. */
240 static int current_sym_nchars;
242 /* Report having output N chars of the current symbol-description. */
244 #define CHARS(N) (current_sym_nchars += (N))
246 /* Break the current symbol-description, generating a continuation,
247 if it has become long. */
249 #ifndef DBX_CONTIN_LENGTH
250 #define DBX_CONTIN_LENGTH 80
253 #if DBX_CONTIN_LENGTH > 0
255 do {if (current_sym_nchars > DBX_CONTIN_LENGTH) dbxout_continue ();} while (0)
260 void dbxout_types ();
262 void dbxout_symbol ();
263 static void dbxout_type_name ();
264 static void dbxout_type ();
265 static void dbxout_typedefs ();
266 static void dbxout_prepare_symbol ();
267 static void dbxout_finish_symbol ();
268 static void dbxout_continue ();
269 static void print_int_cst_octal ();
270 static void print_octal ();
272 #if 0 /* Not clear we will actually need this. */
274 /* Return the absolutized filename for the given relative
275 filename. Note that if that filename is already absolute, it may
276 still be returned in a modified form because this routine also
277 eliminates redundant slashes and single dots and eliminates double
278 dots to get a shortest possible filename from the given input
279 filename. The absolutization of relative filenames is made by
280 assuming that the given filename is to be taken as relative to
281 the first argument (cwd) or to the current directory if cwd is
285 abspath (rel_filename)
288 /* Setup the current working directory as needed. */
290 = (char *) alloca (strlen (cwd) + strlen (rel_filename) + 1);
291 char *endp = abs_buffer;
295 /* Copy the filename (possibly preceded by the current working
296 directory name) into the absolutization buffer. */
301 if (rel_filename[0] != '/')
304 while (*endp++ = *src_p++)
306 *(endp-1) = '/'; /* overwrite null */
308 src_p = rel_filename;
309 while (*endp++ = *src_p++)
314 /* Now make a copy of abs_buffer into abs_buffer, shortening the
315 filename (by taking out slashes and dots) as we go. */
317 outp = inp = abs_buffer;
318 *outp++ = *inp++; /* copy first slash */
323 else if (inp[0] == '/' && outp[-1] == '/')
328 else if (inp[0] == '.' && outp[-1] == '/')
332 else if (inp[1] == '/')
337 else if ((inp[1] == '.') && (inp[2] == 0 || inp[2] == '/'))
339 inp += (inp[2] == '/') ? 3 : 2;
341 while (outp >= abs_buffer && *outp != '/')
343 if (outp < abs_buffer)
345 /* Catch cases like /.. where we try to backup to a
346 point above the absolute root of the logical file
349 fprintf (stderr, "%s: invalid file name: %s\n",
350 pname, rel_filename);
360 /* On exit, make sure that there is a trailing null, and make sure that
361 the last character of the returned string is *not* a slash. */
367 /* Make a copy (in the heap) of the stuff left in the absolutization
368 buffer and return a pointer to the copy. */
370 value = (char *) oballoc (strlen (abs_buffer) + 1);
371 strcpy (value, abs_buffer);
376 /* At the beginning of compilation, start writing the symbol table.
377 Initialize `typevec' and output the standard data types of C. */
380 dbxout_init (asm_file, input_file_name, syms)
382 char *input_file_name;
385 char ltext_label_name[100];
390 typevec = (enum typestatus *) xmalloc (typevec_len * sizeof typevec[0]);
391 bzero (typevec, typevec_len * sizeof typevec[0]);
393 /* Convert Ltext into the appropriate format for local labels in case
394 the system doesn't insert underscores in front of user generated
396 ASM_GENERATE_INTERNAL_LABEL (ltext_label_name, "Ltext", 0);
398 /* Put the current working directory in an N_SO symbol. */
399 #ifndef DBX_WORKING_DIRECTORY /* Only some versions of DBX want this,
400 but GDB always does. */
401 if (use_gnu_debug_info_extensions)
404 if (cwd || (cwd = getpwd ()))
406 #ifdef DBX_OUTPUT_MAIN_SOURCE_DIRECTORY
407 DBX_OUTPUT_MAIN_SOURCE_DIRECTORY (asmfile, cwd);
408 #else /* no DBX_OUTPUT_MAIN_SOURCE_DIRECTORY */
409 fprintf (asmfile, "%s \"%s/\",%d,0,0,%s\n", ASM_STABS_OP,
410 cwd, N_SO, <ext_label_name[1]);
411 #endif /* no DBX_OUTPUT_MAIN_SOURCE_DIRECTORY */
415 #ifdef DBX_OUTPUT_MAIN_SOURCE_FILENAME
416 /* This should NOT be DBX_OUTPUT_SOURCE_FILENAME. That
417 would give us an N_SOL, and we want an N_SO. */
418 DBX_OUTPUT_MAIN_SOURCE_FILENAME (asmfile, input_file_name);
419 #else /* no DBX_OUTPUT_MAIN_SOURCE_FILENAME */
420 /* We include outputting `Ltext:' here,
421 because that gives you a way to override it. */
422 /* Used to put `Ltext:' before the reference, but that loses on sun 4. */
423 fprintf (asmfile, "%s \"%s\",%d,0,0,%s\n", ASM_STABS_OP, input_file_name,
424 N_SO, <ext_label_name[1]);
426 ASM_OUTPUT_INTERNAL_LABEL (asmfile, "Ltext", 0);
427 #endif /* no DBX_OUTPUT_MAIN_SOURCE_FILENAME */
429 /* Possibly output something to inform GDB that this compilation was by
430 GCC. It's easier for GDB to parse it when after the N_SO's. This
431 is used in Solaris 2. */
432 #ifdef ASM_IDENTIFY_GCC_AFTER_SOURCE
433 ASM_IDENTIFY_GCC_AFTER_SOURCE (asmfile);
436 lastfile = input_file_name;
438 next_type_number = 1;
439 next_block_number = 2;
441 /* Make sure that types `int' and `char' have numbers 1 and 2.
442 Definitions of other integer types will refer to those numbers.
443 (Actually it should no longer matter what their numbers are.
444 Also, if any types with tags have been defined, dbxout_symbol
445 will output them first, so the numbers won't be 1 and 2. That
446 happens in C++. So it's a good thing it should no longer matter). */
448 #ifdef DBX_OUTPUT_STANDARD_TYPES
449 DBX_OUTPUT_STANDARD_TYPES (syms);
451 dbxout_symbol (TYPE_NAME (integer_type_node), 0);
452 dbxout_symbol (TYPE_NAME (char_type_node), 0);
455 /* Get all permanent types that have typedef names,
456 and output them all, except for those already output. */
458 dbxout_typedefs (syms);
461 /* Output any typedef names for types described by TYPE_DECLs in SYMS,
462 in the reverse order from that which is found in SYMS. */
465 dbxout_typedefs (syms)
470 dbxout_typedefs (TREE_CHAIN (syms));
471 if (TREE_CODE (syms) == TYPE_DECL)
473 tree type = TREE_TYPE (syms);
475 && TREE_CODE (TYPE_NAME (type)) == TYPE_DECL
476 && ! TREE_ASM_WRITTEN (TYPE_NAME (type)))
477 dbxout_symbol (TYPE_NAME (type), 0);
482 /* Output debugging info to FILE to switch to sourcefile FILENAME. */
485 dbxout_source_file (file, filename)
489 char ltext_label_name[100];
491 if (filename && (lastfile == 0 || strcmp (filename, lastfile)))
493 #ifdef DBX_OUTPUT_SOURCE_FILENAME
494 DBX_OUTPUT_SOURCE_FILENAME (file, filename);
496 ASM_GENERATE_INTERNAL_LABEL (ltext_label_name, "Ltext", 0);
497 fprintf (file, "%s \"%s\",%d,0,0,%s\n", ASM_STABS_OP,
498 filename, N_SOL, <ext_label_name[1]);
504 /* Output a line number symbol entry into output stream FILE,
505 for source file FILENAME and line number LINENO. */
508 dbxout_source_line (file, filename, lineno)
513 dbxout_source_file (file, filename);
515 #ifdef ASM_OUTPUT_SOURCE_LINE
516 ASM_OUTPUT_SOURCE_LINE (file, lineno);
518 fprintf (file, "\t%s %d,0,%d\n", ASM_STABD_OP, N_SLINE, lineno);
522 /* At the end of compilation, finish writing the symbol table.
523 Unless you define DBX_OUTPUT_MAIN_SOURCE_FILE_END, the default is
527 dbxout_finish (file, filename)
531 #ifdef DBX_OUTPUT_MAIN_SOURCE_FILE_END
532 DBX_OUTPUT_MAIN_SOURCE_FILE_END (file, filename);
533 #endif /* DBX_OUTPUT_MAIN_SOURCE_FILE_END */
536 /* Continue a symbol-description that gets too big.
537 End one symbol table entry with a double-backslash
538 and start a new one, eventually producing something like
539 .stabs "start......\\",code,0,value
540 .stabs "...rest",code,0,value */
545 #ifdef DBX_CONTIN_CHAR
546 fprintf (asmfile, "%c", DBX_CONTIN_CHAR);
548 fprintf (asmfile, "\\\\");
550 dbxout_finish_symbol (NULL_TREE);
551 fprintf (asmfile, "%s \"", ASM_STABS_OP);
552 current_sym_nchars = 0;
555 /* Subroutine of `dbxout_type'. Output the type fields of TYPE.
556 This must be a separate function because anonymous unions require
560 dbxout_type_fields (type)
564 /* Output the name, type, position (in bits), size (in bits) of each
566 for (tem = TYPE_FIELDS (type); tem; tem = TREE_CHAIN (tem))
568 /* For nameless subunions and subrecords, treat their fields as ours. */
569 if (DECL_NAME (tem) == NULL_TREE
570 && (TREE_CODE (TREE_TYPE (tem)) == UNION_TYPE
571 || TREE_CODE (TREE_TYPE (tem)) == RECORD_TYPE))
572 dbxout_type_fields (TREE_TYPE (tem));
573 /* Omit here local type decls until we know how to support them. */
574 else if (TREE_CODE (tem) == TYPE_DECL)
576 /* Omit here the nameless fields that are used to skip bits. */
577 else if (DECL_NAME (tem) != 0 && TREE_CODE (tem) != CONST_DECL)
579 /* Continue the line if necessary,
580 but not before the first field. */
581 if (tem != TYPE_FIELDS (type))
584 if (use_gnu_debug_info_extensions
585 && flag_minimal_debug
586 && TREE_CODE (tem) == FIELD_DECL
587 && DECL_VIRTUAL_P (tem)
588 && DECL_ASSEMBLER_NAME (tem))
590 have_used_extensions = 1;
591 CHARS (3 + IDENTIFIER_LENGTH (DECL_NAME (TYPE_NAME (DECL_FCONTEXT (tem)))));
592 fputs (IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (tem)), asmfile);
593 dbxout_type (DECL_FCONTEXT (tem), 0, 0);
594 fprintf (asmfile, ":");
595 dbxout_type (TREE_TYPE (tem), 0, 0);
596 fprintf (asmfile, ",%d;",
597 TREE_INT_CST_LOW (DECL_FIELD_BITPOS (tem)));
601 fprintf (asmfile, "%s:", IDENTIFIER_POINTER (DECL_NAME (tem)));
602 CHARS (2 + IDENTIFIER_LENGTH (DECL_NAME (tem)));
604 if (use_gnu_debug_info_extensions
605 && (TREE_PRIVATE (tem) || TREE_PROTECTED (tem)
606 || TREE_CODE (tem) != FIELD_DECL))
608 have_used_extensions = 1;
610 putc ((TREE_PRIVATE (tem) ? '0'
611 : TREE_PROTECTED (tem) ? '1' : '2'),
616 dbxout_type ((TREE_CODE (tem) == FIELD_DECL
617 && DECL_BIT_FIELD_TYPE (tem))
618 ? DECL_BIT_FIELD_TYPE (tem)
619 : TREE_TYPE (tem), 0, 0);
621 if (TREE_CODE (tem) == VAR_DECL)
623 if (TREE_STATIC (tem) && use_gnu_debug_info_extensions)
625 char *name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (tem));
626 have_used_extensions = 1;
627 fprintf (asmfile, ":%s;", name);
628 CHARS (strlen (name));
632 /* If TEM is non-static, GDB won't understand it. */
633 fprintf (asmfile, ",0,0;");
636 else if (TREE_CODE (DECL_FIELD_BITPOS (tem)) == INTEGER_CST)
638 fprintf (asmfile, ",%d,%d;",
639 TREE_INT_CST_LOW (DECL_FIELD_BITPOS (tem)),
640 TREE_INT_CST_LOW (DECL_SIZE (tem)));
643 /* This has yet to be implemented. */
650 /* Subroutine of `dbxout_type_methods'. Output debug info about the
651 method described DECL. DEBUG_NAME is an encoding of the method's
652 type signature. ??? We may be able to do without DEBUG_NAME altogether
656 dbxout_type_method_1 (decl, debug_name)
660 tree firstarg = TREE_VALUE (TYPE_ARG_TYPES (TREE_TYPE (decl)));
663 if (TREE_CODE (TREE_TYPE (decl)) == FUNCTION_TYPE)
665 else /* it's a METHOD_TYPE. */
667 /* A for normal functions.
668 B for `const' member functions.
669 C for `volatile' member functions.
670 D for `const volatile' member functions. */
671 if (TYPE_READONLY (TREE_TYPE (firstarg)))
673 if (TYPE_VOLATILE (TREE_TYPE (firstarg)))
676 if (DECL_VINDEX (decl))
682 fprintf (asmfile, ":%s;%c%c%c", debug_name,
683 TREE_PRIVATE (decl) ? '0' : TREE_PROTECTED (decl) ? '1' : '2', c1, c2);
684 CHARS (IDENTIFIER_LENGTH (DECL_ASSEMBLER_NAME (decl)) + 6
685 - (debug_name - IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl))));
686 if (DECL_VINDEX (decl))
688 fprintf (asmfile, "%d;",
689 TREE_INT_CST_LOW (DECL_VINDEX (decl)));
690 dbxout_type (DECL_CONTEXT (decl), 0, 0);
691 fprintf (asmfile, ";");
696 /* Subroutine of `dbxout_type'. Output debug info about the methods defined
700 dbxout_type_methods (type)
703 /* C++: put out the method names and their parameter lists */
704 tree methods = TYPE_METHODS (type);
706 register tree fndecl;
708 char formatted_type_identifier_length[16];
709 register int type_identifier_length;
711 if (methods == NULL_TREE)
714 type_encoding = DECL_NAME (TYPE_NAME (type));
716 /* C++: Template classes break some assumptions made by this code about
717 the class names, constructor names, and encodings for assembler
718 label names. For now, disable output of dbx info for them. */
720 char *ptr = IDENTIFIER_POINTER (type_encoding);
721 /* This should use index. (mrs) */
722 while (*ptr && *ptr != '<') ptr++;
729 warning ("dbx info for template class methods not yet supported");
735 type_identifier_length = IDENTIFIER_LENGTH (type_encoding);
737 sprintf(formatted_type_identifier_length, "%d", type_identifier_length);
739 if (TREE_CODE (methods) == FUNCTION_DECL)
741 else if (TREE_VEC_ELT (methods, 0) != NULL_TREE)
742 fndecl = TREE_VEC_ELT (methods, 0);
744 fndecl = TREE_VEC_ELT (methods, 1);
748 tree name = DECL_NAME (fndecl);
751 /* Group together all the methods for the same operation.
752 These differ in the types of the arguments. */
753 for (last = NULL_TREE;
754 fndecl && (last == NULL_TREE || DECL_NAME (fndecl) == DECL_NAME (last));
755 fndecl = TREE_CHAIN (fndecl))
756 /* Output the name of the field (after overloading), as
757 well as the name of the field before overloading, along
758 with its parameter list */
760 /* This is the "mangled" name of the method.
761 It encodes the argument types. */
762 char *debug_name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (fndecl));
769 if (DECL_IGNORED_P (fndecl))
772 if (flag_minimal_debug)
774 /* Detect ordinary methods because their mangled names
775 start with the operation name. */
776 if (!strncmp (IDENTIFIER_POINTER (name), debug_name,
777 IDENTIFIER_LENGTH (name)))
779 debug_name += IDENTIFIER_LENGTH (name);
780 if (debug_name[0] == '_' && debug_name[1] == '_')
782 char *method_name = debug_name + 2;
783 char *length_ptr = formatted_type_identifier_length;
784 /* Get past const and volatile qualifiers. */
785 while (*method_name == 'C' || *method_name == 'V')
787 /* Skip digits for length of type_encoding. */
788 while (*method_name == *length_ptr && *length_ptr)
789 length_ptr++, method_name++;
790 if (! strncmp (method_name,
791 IDENTIFIER_POINTER (type_encoding),
792 type_identifier_length))
793 method_name += type_identifier_length;
794 debug_name = method_name;
797 /* Detect constructors by their style of name mangling. */
798 else if (debug_name[0] == '_' && debug_name[1] == '_')
800 char *ctor_name = debug_name + 2;
801 char *length_ptr = formatted_type_identifier_length;
802 while (*ctor_name == 'C' || *ctor_name == 'V')
804 /* Skip digits for length of type_encoding. */
805 while (*ctor_name == *length_ptr && *length_ptr)
806 length_ptr++, ctor_name++;
807 if (!strncmp (IDENTIFIER_POINTER (type_encoding), ctor_name,
808 type_identifier_length))
809 debug_name = ctor_name + type_identifier_length;
811 /* The other alternative is a destructor. */
815 /* Output the operation name just once, for the first method
819 fprintf (asmfile, "%s::", IDENTIFIER_POINTER (name));
820 CHARS (IDENTIFIER_LENGTH (name) + 2);
825 dbxout_type (TREE_TYPE (fndecl), 0, destructor);
827 dbxout_type_method_1 (fndecl, debug_name);
837 /* Output a reference to a type. If the type has not yet been
838 described in the dbx output, output its definition now.
839 For a type already defined, just refer to its definition
840 using the type number.
842 If FULL is nonzero, and the type has been described only with
843 a forward-reference, output the definition now.
844 If FULL is zero in this case, just refer to the forward-reference
845 using the number previously allocated.
847 If SHOW_ARG_TYPES is nonzero, we output a description of the argument
848 types for a METHOD_TYPE. */
851 dbxout_type (type, full, show_arg_types)
857 static int anonymous_type_number = 0;
859 /* If there was an input error and we don't really have a type,
860 avoid crashing and write something that is at least valid
861 by assuming `int'. */
862 if (type == error_mark_node)
863 type = integer_type_node;
866 type = TYPE_MAIN_VARIANT (type);
868 && TREE_CODE (TYPE_NAME (type)) == TYPE_DECL
869 && DECL_IGNORED_P (TYPE_NAME (type)))
873 if (TYPE_SYMTAB_ADDRESS (type) == 0)
875 /* Type has no dbx number assigned. Assign next available number. */
876 TYPE_SYMTAB_ADDRESS (type) = next_type_number++;
878 /* Make sure type vector is long enough to record about this type. */
880 if (next_type_number == typevec_len)
882 typevec = (enum typestatus *) xrealloc (typevec, typevec_len * 2 * sizeof typevec[0]);
883 bzero (typevec + typevec_len, typevec_len * sizeof typevec[0]);
888 /* Output the number of this type, to refer to it. */
889 fprintf (asmfile, "%d", TYPE_SYMTAB_ADDRESS (type));
892 #ifdef DBX_TYPE_DEFINED
893 if (DBX_TYPE_DEFINED (type))
897 /* If this type's definition has been output or is now being output,
900 switch (typevec[TYPE_SYMTAB_ADDRESS (type)])
905 /* If we have already had a cross reference,
906 and either that's all we want or that's the best we could do,
907 don't repeat the cross reference.
908 Sun dbx crashes if we do. */
909 if (! full || TYPE_SIZE (type) == 0
910 /* No way in DBX fmt to describe a variable size. */
911 || TREE_CODE (TYPE_SIZE (type)) != INTEGER_CST)
919 /* For systems where dbx output does not allow the `=xsNAME:' syntax,
920 leave the type-number completely undefined rather than output
921 a cross-reference. */
922 if (TREE_CODE (type) == RECORD_TYPE || TREE_CODE (type) == UNION_TYPE
923 || TREE_CODE (type) == ENUMERAL_TYPE)
925 if ((TYPE_NAME (type) != 0 && !full)
926 || TYPE_SIZE (type) == 0)
928 typevec[TYPE_SYMTAB_ADDRESS (type)] = TYPE_XREF;
933 /* Output a definition now. */
935 fprintf (asmfile, "=");
938 /* Mark it as defined, so that if it is self-referent
939 we will not get into an infinite recursion of definitions. */
941 typevec[TYPE_SYMTAB_ADDRESS (type)] = TYPE_DEFINED;
943 switch (TREE_CODE (type))
947 /* For a void type, just define it as itself; ie, "5=5".
948 This makes us consider it defined
949 without saying what it is. The debugger will make it
950 a void type when the reference is seen, and nothing will
951 ever override that default. */
952 fprintf (asmfile, "%d", TYPE_SYMTAB_ADDRESS (type));
957 if (type == char_type_node && ! TREE_UNSIGNED (type))
958 /* Output the type `char' as a subrange of itself!
959 I don't understand this definition, just copied it
960 from the output of pcc.
961 This used to use `r2' explicitly and we used to
962 take care to make sure that `char' was type number 2. */
963 fprintf (asmfile, "r%d;0;127;", TYPE_SYMTAB_ADDRESS (type));
965 else if (TYPE_PRECISION (type) > BITS_PER_WORD)
967 /* This used to say `r1' and we used to take care
968 to make sure that `int' was type number 1. */
969 fprintf (asmfile, "r%d;", TYPE_SYMTAB_ADDRESS (integer_type_node));
970 print_int_cst_octal (TYPE_MIN_VALUE (type));
971 fprintf (asmfile, ";");
972 print_int_cst_octal (TYPE_MAX_VALUE (type));
973 fprintf (asmfile, ";");
977 /* Output other integer types as subranges of `int'. */
978 /* This used to say `r1' and we used to take care
979 to make sure that `int' was type number 1. */
980 fprintf (asmfile, "r%d;%d;%d;",
981 TYPE_SYMTAB_ADDRESS (integer_type_node),
982 TREE_INT_CST_LOW (TYPE_MIN_VALUE (type)),
983 TREE_INT_CST_LOW (TYPE_MAX_VALUE (type)));
988 /* This used to say `r1' and we used to take care
989 to make sure that `int' was type number 1. */
990 fprintf (asmfile, "r%d;%d;0;", TYPE_SYMTAB_ADDRESS (integer_type_node),
991 TREE_INT_CST_LOW (size_in_bytes (type)));
996 /* Output the type `char' as a subrange of itself.
997 That is what pcc seems to do. */
998 fprintf (asmfile, "r%d;0;%d;", TYPE_SYMTAB_ADDRESS (char_type_node),
999 TREE_UNSIGNED (type) ? 255 : 127);
1003 case BOOLEAN_TYPE: /* Define as enumeral type (False, True) */
1004 fprintf (asmfile, "eFalse:0,True:1,;");
1009 putc ('d', asmfile);
1011 dbxout_type (TREE_TYPE (type), 0);
1015 /* Differs from the REAL_TYPE by its new data type number */
1017 if (TREE_CODE (TREE_TYPE (type)) == REAL_TYPE)
1019 fprintf (asmfile, "r%d;%d;0;",
1020 TYPE_SYMTAB_ADDRESS (type),
1021 TREE_INT_CST_LOW (size_in_bytes (TREE_TYPE (type))));
1022 CHARS (15); /* The number is propably incorrect here */
1024 abort (); /* What to do with CSImode complex? */
1028 putc ('S', asmfile);
1030 dbxout_type (TREE_TYPE (type), 0);
1034 /* Output "a" followed by a range type definition
1035 for the index type of the array
1036 followed by a reference to the target-type.
1037 ar1;0;N;M for an array of type M and size N. */
1038 /* This used to say `r1' and we used to take care
1039 to make sure that `int' was type number 1. */
1040 fprintf (asmfile, "ar%d;0;%d;", TYPE_SYMTAB_ADDRESS (integer_type_node),
1043 ? TREE_INT_CST_LOW (TYPE_MAX_VALUE (TYPE_DOMAIN (type)))
1046 dbxout_type (TREE_TYPE (type), 0, 0);
1052 int i, n_baseclasses = 0;
1054 if (TYPE_BINFO (type) != 0 && TYPE_BINFO_BASETYPES (type) != 0)
1055 n_baseclasses = TREE_VEC_LENGTH (TYPE_BINFO_BASETYPES (type));
1057 /* Output a structure type. */
1058 if ((TYPE_NAME (type) != 0
1059 #if 0 /* Tiemann says this creates output tha "confuses GDB".
1060 Too bad the info is so vague. Hope this doesn't lose. */
1061 && ! (TREE_CODE (TYPE_NAME (type)) == TYPE_DECL
1062 && DECL_IGNORED_P (TYPE_NAME (type)))
1065 || TYPE_SIZE (type) == 0
1066 /* No way in DBX fmt to describe a variable size. */
1067 || TREE_CODE (TYPE_SIZE (type)) != INTEGER_CST)
1069 /* If the type is just a cross reference, output one
1070 and mark the type as partially described.
1071 If it later becomes defined, we will output
1072 its real definition.
1073 If the type has a name, don't nest its definition within
1074 another type's definition; instead, output an xref
1075 and let the definition come when the name is defined. */
1076 fprintf (asmfile, (TREE_CODE (type) == RECORD_TYPE) ? "xs" : "xu");
1078 #if 0 /* This assertion is legitimately false in C++. */
1079 /* We shouldn't be outputting a reference to a type before its
1080 definition unless the type has a tag name.
1081 A typedef name without a tag name should be impossible. */
1082 if (TREE_CODE (TYPE_NAME (type)) != IDENTIFIER_NODE)
1085 if (TYPE_NAME (type) != 0)
1086 dbxout_type_name (type);
1088 fprintf (asmfile, "$$%d", anonymous_type_number++);
1089 fprintf (asmfile, ":");
1090 typevec[TYPE_SYMTAB_ADDRESS (type)] = TYPE_XREF;
1093 tem = size_in_bytes (type);
1095 /* Identify record or union, and print its size. */
1096 fprintf (asmfile, (TREE_CODE (type) == RECORD_TYPE) ? "s%d" : "u%d",
1097 TREE_INT_CST_LOW (tem));
1099 if (use_gnu_debug_info_extensions)
1103 have_used_extensions = 1;
1104 fprintf (asmfile, "!%d,", n_baseclasses);
1108 for (i = 0; i < n_baseclasses; i++)
1110 tree child = TREE_VEC_ELT (BINFO_BASETYPES (TYPE_BINFO (type)), i);
1111 if (use_gnu_debug_info_extensions)
1113 have_used_extensions = 1;
1114 putc (TREE_VIA_VIRTUAL (child) ? '1'
1117 putc (TREE_VIA_PUBLIC (child) ? '2'
1120 fprintf (asmfile, "%d,",
1121 TREE_INT_CST_LOW (BINFO_OFFSET (child)) * BITS_PER_UNIT);
1123 dbxout_type (BINFO_TYPE (child), 0, 0);
1124 putc (';', asmfile);
1128 /* Print out the base class information with fields
1129 which have the same names at the types they hold. */
1130 dbxout_type_name (BINFO_TYPE (child));
1131 putc (':', asmfile);
1132 dbxout_type (BINFO_TYPE (child), full, 0);
1133 fprintf (asmfile, ",%d,%d;",
1134 TREE_INT_CST_LOW (BINFO_OFFSET (child)) * BITS_PER_UNIT,
1135 TREE_INT_CST_LOW (DECL_SIZE (TYPE_NAME (BINFO_TYPE (child)))) * BITS_PER_UNIT);
1143 /* Write out the field declarations. */
1144 dbxout_type_fields (type);
1145 if (use_gnu_debug_info_extensions && TYPE_METHODS (type) != NULL_TREE)
1147 have_used_extensions = 1;
1148 dbxout_type_methods (type);
1150 putc (';', asmfile);
1152 if (use_gnu_debug_info_extensions && TREE_CODE (type) == RECORD_TYPE
1153 /* Avoid the ~ if we don't really need it--it confuses dbx. */
1154 && TYPE_VFIELD (type))
1156 have_used_extensions = 1;
1158 /* Tell GDB+ that it may keep reading. */
1159 putc ('~', asmfile);
1161 /* We need to write out info about what field this class
1162 uses as its "main" vtable pointer field, because if this
1163 field is inherited from a base class, GDB cannot necessarily
1164 figure out which field it's using in time. */
1165 if (TYPE_VFIELD (type))
1167 putc ('%', asmfile);
1168 dbxout_type (DECL_FCONTEXT (TYPE_VFIELD (type)), 0, 0);
1170 putc (';', asmfile);
1176 if ((TYPE_NAME (type) != 0 && !full
1177 && (TREE_CODE (TYPE_NAME (type)) == TYPE_DECL
1178 && ! DECL_IGNORED_P (TYPE_NAME (type))))
1179 || TYPE_SIZE (type) == 0)
1181 fprintf (asmfile, "xe");
1183 dbxout_type_name (type);
1184 typevec[TYPE_SYMTAB_ADDRESS (type)] = TYPE_XREF;
1185 fprintf (asmfile, ":");
1188 #ifdef DBX_OUTPUT_ENUM
1189 DBX_OUTPUT_ENUM (asmfile, type);
1191 putc ('e', asmfile);
1193 for (tem = TYPE_VALUES (type); tem; tem = TREE_CHAIN (tem))
1195 fprintf (asmfile, "%s:%d,", IDENTIFIER_POINTER (TREE_PURPOSE (tem)),
1196 TREE_INT_CST_LOW (TREE_VALUE (tem)));
1197 CHARS (11 + IDENTIFIER_LENGTH (TREE_PURPOSE (tem)));
1198 if (TREE_CHAIN (tem) != 0)
1201 putc (';', asmfile);
1207 putc ('*', asmfile);
1209 dbxout_type (TREE_TYPE (type), 0, 0);
1213 if (use_gnu_debug_info_extensions)
1215 have_used_extensions = 1;
1216 putc ('#', asmfile);
1218 if (flag_minimal_debug && !show_arg_types)
1220 /* Normally, just output the return type.
1221 The argument types are encoded in the method name. */
1222 putc ('#', asmfile);
1223 dbxout_type (TREE_TYPE (type), 0, 0);
1224 putc (';', asmfile);
1229 /* When outputting destructors, we need to write
1230 the argument types out longhand. */
1231 dbxout_type (TYPE_METHOD_BASETYPE (type), 0, 0);
1232 putc (',', asmfile);
1234 dbxout_type (TREE_TYPE (type), 0, 0);
1235 dbxout_args (TYPE_ARG_TYPES (type));
1236 putc (';', asmfile);
1242 /* Treat it as a function type. */
1243 dbxout_type (TREE_TYPE (type), 0, 0);
1248 if (use_gnu_debug_info_extensions)
1250 have_used_extensions = 1;
1251 putc ('@', asmfile);
1253 dbxout_type (TYPE_OFFSET_BASETYPE (type), 0, 0);
1254 putc (',', asmfile);
1256 dbxout_type (TREE_TYPE (type), 0, 0);
1260 /* Should print as an int, because it is really
1262 dbxout_type (integer_type_node, 0, 0);
1266 case REFERENCE_TYPE:
1267 if (use_gnu_debug_info_extensions)
1268 have_used_extensions = 1;
1269 putc (use_gnu_debug_info_extensions ? '&' : '*', asmfile);
1271 dbxout_type (TREE_TYPE (type), 0, 0);
1275 putc ('f', asmfile);
1277 dbxout_type (TREE_TYPE (type), 0, 0);
1285 /* Print the value of integer constant C, in octal,
1286 handling double precision. */
1289 print_int_cst_octal (c)
1292 unsigned HOST_WIDE_INT high = TREE_INT_CST_HIGH (c);
1293 unsigned HOST_WIDE_INT low = TREE_INT_CST_LOW (c);
1294 int excess = (3 - (HOST_BITS_PER_WIDE_INT % 3));
1296 fprintf (asmfile, "0");
1300 print_octal (high, HOST_BITS_PER_WIDE_INT / 3);
1301 print_octal (low, HOST_BITS_PER_WIDE_INT / 3);
1305 unsigned HOST_WIDE_INT beg = high >> excess;
1306 unsigned HOST_WIDE_INT middle
1307 = ((high & (((HOST_WIDE_INT) 1 << excess) - 1)) << (3 - excess)
1308 | (low >> (HOST_BITS_PER_WIDE_INT / 3 * 3)));
1309 unsigned HOST_WIDE_INT end
1310 = low & (((HOST_WIDE_INT) 1 << (HOST_BITS_PER_WIDE_INT / 3 * 3)) - 1);
1311 fprintf (asmfile, "%o%01o", beg, middle);
1312 print_octal (end, HOST_BITS_PER_WIDE_INT / 3);
1317 print_octal (value, digits)
1318 unsigned HOST_WIDE_INT value;
1323 for (i = digits - 1; i >= 0; i--)
1324 fprintf (asmfile, "%01o", ((value >> (3 * i)) & 7));
1327 /* Output the name of type TYPE, with no punctuation.
1328 Such names can be set up either by typedef declarations
1329 or by struct, enum and union tags. */
1332 dbxout_type_name (type)
1336 if (TYPE_NAME (type) == 0)
1338 if (TREE_CODE (TYPE_NAME (type)) == IDENTIFIER_NODE)
1340 t = TYPE_NAME (type);
1342 else if (TREE_CODE (TYPE_NAME (type)) == TYPE_DECL)
1344 t = DECL_NAME (TYPE_NAME (type));
1349 fprintf (asmfile, "%s", IDENTIFIER_POINTER (t));
1350 CHARS (IDENTIFIER_LENGTH (t));
1353 /* Output a .stabs for the symbol defined by DECL,
1354 which must be a ..._DECL node in the normal namespace.
1355 It may be a CONST_DECL, a FUNCTION_DECL, a PARM_DECL or a VAR_DECL.
1356 LOCAL is nonzero if the scope is less than the entire file. */
1359 dbxout_symbol (decl, local)
1364 tree type = TREE_TYPE (decl);
1365 tree context = NULL_TREE;
1368 /* Cast avoids warning in old compilers. */
1369 current_sym_code = (STAB_CODE_TYPE) 0;
1370 current_sym_value = 0;
1371 current_sym_addr = 0;
1373 /* Ignore nameless syms, but don't ignore type tags. */
1375 if ((DECL_NAME (decl) == 0 && TREE_CODE (decl) != TYPE_DECL)
1376 || DECL_IGNORED_P (decl))
1379 dbxout_prepare_symbol (decl);
1381 /* The output will always start with the symbol name,
1382 so always count that in the length-output-so-far. */
1384 if (DECL_NAME (decl) != 0)
1385 current_sym_nchars = 2 + IDENTIFIER_LENGTH (DECL_NAME (decl));
1387 switch (TREE_CODE (decl))
1390 /* Enum values are defined by defining the enum type. */
1394 if (DECL_RTL (decl) == 0)
1396 if (DECL_EXTERNAL (decl))
1398 /* Don't mention a nested function under its parent. */
1399 context = decl_function_context (decl);
1400 if (context == current_function_decl)
1402 if (GET_CODE (DECL_RTL (decl)) != MEM
1403 || GET_CODE (XEXP (DECL_RTL (decl), 0)) != SYMBOL_REF)
1407 fprintf (asmfile, "%s \"%s:%c", ASM_STABS_OP,
1408 IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl)),
1409 TREE_PUBLIC (decl) ? 'F' : 'f');
1411 current_sym_code = N_FUN;
1412 current_sym_addr = XEXP (DECL_RTL (decl), 0);
1414 if (TREE_TYPE (type))
1415 dbxout_type (TREE_TYPE (type), 0, 0);
1417 dbxout_type (void_type_node, 0, 0);
1419 /* For a nested function, when that function is compiled,
1420 mention the containing function name
1421 as well as (since dbx wants it) our own assembler-name. */
1423 fprintf (asmfile, ",%s,%s",
1424 IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl)),
1425 IDENTIFIER_POINTER (DECL_NAME (context)));
1427 dbxout_finish_symbol (decl);
1432 /* This seems all wrong. Outputting most kinds of types gives no name
1433 at all. A true definition gives no name; a cross-ref for a
1434 structure can give the tag name, but not a type name.
1435 It seems that no typedef name is defined by outputting a type. */
1437 /* If this typedef name was defined by outputting the type,
1438 don't duplicate it. */
1439 if (typevec[TYPE_SYMTAB_ADDRESS (type)] == TYPE_DEFINED
1440 && TYPE_NAME (TREE_TYPE (decl)) == decl)
1443 /* Don't output the same typedef twice.
1444 And don't output what language-specific stuff doesn't want output. */
1445 if (TREE_ASM_WRITTEN (decl) || DECL_IGNORED_P (decl))
1454 if (DECL_NAME (decl))
1456 /* Nonzero means we must output a tag as well as a typedef. */
1459 /* Handle the case of a C++ structure or union
1460 where the TYPE_NAME is a TYPE_DECL
1461 which gives both a typedef name and a tag. */
1462 /* dbx requires the tag first and the typedef second. */
1463 if ((TREE_CODE (type) == RECORD_TYPE
1464 || TREE_CODE (type) == UNION_TYPE)
1465 && TYPE_NAME (type) == decl
1466 && !(use_gnu_debug_info_extensions && have_used_extensions)
1467 && !TREE_ASM_WRITTEN (TYPE_NAME (type))
1468 /* Distinguish the implicit typedefs of C++
1469 from explicit ones that might be found in C. */
1470 && DECL_SOURCE_LINE (decl) == 0)
1472 tree name = TYPE_NAME (type);
1473 if (TREE_CODE (name) == TYPE_DECL)
1474 name = DECL_NAME (name);
1476 current_sym_code = DBX_TYPE_DECL_STABS_CODE;
1477 current_sym_value = 0;
1478 current_sym_addr = 0;
1479 current_sym_nchars = 2 + IDENTIFIER_LENGTH (name);
1481 fprintf (asmfile, "%s \"%s:T", ASM_STABS_OP,
1482 IDENTIFIER_POINTER (name));
1483 dbxout_type (type, 1, 0);
1484 dbxout_finish_symbol (NULL_TREE);
1487 /* Output typedef name. */
1488 fprintf (asmfile, "%s \"%s:", ASM_STABS_OP,
1489 IDENTIFIER_POINTER (DECL_NAME (decl)));
1491 /* Short cut way to output a tag also. */
1492 if ((TREE_CODE (type) == RECORD_TYPE
1493 || TREE_CODE (type) == UNION_TYPE)
1494 && TYPE_NAME (type) == decl)
1496 if (use_gnu_debug_info_extensions && have_used_extensions)
1498 putc ('T', asmfile);
1499 TREE_ASM_WRITTEN (TYPE_NAME (type)) = 1;
1501 #if 0 /* Now we generate the tag for this case up above. */
1507 putc ('t', asmfile);
1508 current_sym_code = DBX_TYPE_DECL_STABS_CODE;
1510 dbxout_type (type, 1, 0);
1511 dbxout_finish_symbol (decl);
1515 /* Don't output a tag if this is an incomplete type (TYPE_SIZE is
1516 zero). This prevents the sun4 Sun OS 4.x dbx from crashing. */
1518 if (tag_needed && TYPE_NAME (type) != 0 && TYPE_SIZE (type) != 0
1519 && !TREE_ASM_WRITTEN (TYPE_NAME (type)))
1521 /* For a TYPE_DECL with no name, but the type has a name,
1523 This is what represents `struct foo' with no typedef. */
1524 /* In C++, the name of a type is the corresponding typedef.
1525 In C, it is an IDENTIFIER_NODE. */
1526 tree name = TYPE_NAME (type);
1527 if (TREE_CODE (name) == TYPE_DECL)
1528 name = DECL_NAME (name);
1530 current_sym_code = DBX_TYPE_DECL_STABS_CODE;
1531 current_sym_value = 0;
1532 current_sym_addr = 0;
1533 current_sym_nchars = 2 + IDENTIFIER_LENGTH (name);
1535 fprintf (asmfile, "%s \"%s:T", ASM_STABS_OP,
1536 IDENTIFIER_POINTER (name));
1537 dbxout_type (type, 1, 0);
1538 dbxout_finish_symbol (NULL_TREE);
1542 /* If an enum type has no name, it cannot be referred to,
1543 but we must output it anyway, since the enumeration constants
1544 can be referred to. */
1545 if (!did_output && TREE_CODE (type) == ENUMERAL_TYPE)
1547 current_sym_code = DBX_TYPE_DECL_STABS_CODE;
1548 current_sym_value = 0;
1549 current_sym_addr = 0;
1550 current_sym_nchars = 2;
1552 /* Some debuggers fail when given NULL names, so give this a
1553 harmless name of ` '. */
1554 fprintf (asmfile, "%s \" :T", ASM_STABS_OP);
1555 dbxout_type (type, 1, 0);
1556 dbxout_finish_symbol (NULL_TREE);
1559 /* Prevent duplicate output of a typedef. */
1560 TREE_ASM_WRITTEN (decl) = 1;
1565 /* Parm decls go in their own separate chains
1566 and are output by dbxout_reg_parms and dbxout_parms. */
1570 /* Named return value, treat like a VAR_DECL. */
1572 if (DECL_RTL (decl) == 0)
1574 /* Don't mention a variable that is external.
1575 Let the file that defines it describe it. */
1576 if (DECL_EXTERNAL (decl))
1579 /* If the variable is really a constant
1580 and not written in memory, inform the debugger. */
1581 if (TREE_STATIC (decl) && TREE_READONLY (decl)
1582 && DECL_INITIAL (decl) != 0
1583 && ! TREE_ASM_WRITTEN (decl)
1584 && (DECL_FIELD_CONTEXT (decl) == NULL_TREE
1585 || TREE_CODE (DECL_FIELD_CONTEXT (decl)) == BLOCK))
1587 if (TREE_PUBLIC (decl) == 0)
1589 /* The sun4 assembler does not grok this. */
1590 char *name = IDENTIFIER_POINTER (DECL_NAME (decl));
1591 if (TREE_CODE (TREE_TYPE (decl)) == INTEGER_TYPE
1592 || TREE_CODE (TREE_TYPE (decl)) == ENUMERAL_TYPE)
1594 HOST_WIDE_INT ival = TREE_INT_CST_LOW (DECL_INITIAL (decl));
1595 #ifdef DBX_OUTPUT_CONSTANT_SYMBOL
1596 DBX_OUTPUT_CONSTANT_SYMBOL (asmfile, name, ival);
1598 fprintf (asmfile, "%s \"%s:c=i%d\",0x%x,0,0,0\n",
1599 ASM_STABS_OP, name, ival, N_LSYM);
1603 else if (TREE_CODE (TREE_TYPE (decl)) == REAL_TYPE)
1605 /* don't know how to do this yet. */
1609 /* else it is something we handle like a normal variable. */
1612 DECL_RTL (decl) = eliminate_regs (DECL_RTL (decl), 0, 0);
1613 #ifdef LEAF_REG_REMAP
1615 leaf_renumber_regs_insn (DECL_RTL (decl));
1618 /* Don't mention a variable at all
1619 if it was completely optimized into nothingness.
1621 If DECL was from an inline function, then it's rtl
1622 is not identically the rtl that was used in this
1623 particular compilation. */
1624 if (GET_CODE (DECL_RTL (decl)) == REG)
1626 regno = REGNO (DECL_RTL (decl));
1627 if (regno >= FIRST_PSEUDO_REGISTER)
1630 else if (GET_CODE (DECL_RTL (decl)) == SUBREG)
1632 rtx value = DECL_RTL (decl);
1634 while (GET_CODE (value) == SUBREG)
1636 offset += SUBREG_WORD (value);
1637 value = SUBREG_REG (value);
1639 if (GET_CODE (value) == REG)
1641 regno = REGNO (value);
1642 if (regno >= FIRST_PSEUDO_REGISTER)
1646 alter_subreg (DECL_RTL (decl));
1649 /* The kind-of-variable letter depends on where
1650 the variable is and on the scope of its name:
1651 G and N_GSYM for static storage and global scope,
1652 S for static storage and file scope,
1653 V for static storage and local scope,
1654 for those two, use N_LCSYM if data is in bss segment,
1655 N_STSYM if in data segment, N_FUN otherwise.
1656 (We used N_FUN originally, then changed to N_STSYM
1657 to please GDB. However, it seems that confused ld.
1658 Now GDB has been fixed to like N_FUN, says Kingdon.)
1659 no letter at all, and N_LSYM, for auto variable,
1660 r and N_RSYM for register variable. */
1662 if (GET_CODE (DECL_RTL (decl)) == MEM
1663 && GET_CODE (XEXP (DECL_RTL (decl), 0)) == SYMBOL_REF)
1665 if (TREE_PUBLIC (decl))
1668 current_sym_code = N_GSYM;
1672 current_sym_addr = XEXP (DECL_RTL (decl), 0);
1674 letter = decl_function_context (decl) ? 'V' : 'S';
1676 if (!DECL_INITIAL (decl))
1677 current_sym_code = N_LCSYM;
1678 else if (TREE_READONLY (decl) && ! TREE_THIS_VOLATILE (decl))
1679 /* This is not quite right, but it's the closest
1680 of all the codes that Unix defines. */
1681 current_sym_code = DBX_STATIC_CONST_VAR_CODE;
1684 /* Ultrix `as' seems to need this. */
1685 #ifdef DBX_STATIC_STAB_DATA_SECTION
1688 current_sym_code = N_STSYM;
1692 else if (regno >= 0)
1695 current_sym_code = N_RSYM;
1696 current_sym_value = DBX_REGISTER_NUMBER (regno);
1698 else if (GET_CODE (DECL_RTL (decl)) == MEM
1699 && (GET_CODE (XEXP (DECL_RTL (decl), 0)) == MEM
1700 || (GET_CODE (XEXP (DECL_RTL (decl), 0)) == REG
1701 && REGNO (XEXP (DECL_RTL (decl), 0)) != FRAME_POINTER_REGNUM)))
1702 /* If the value is indirect by memory or by a register
1703 that isn't the frame pointer
1704 then it means the object is variable-sized and address through
1705 that register or stack slot. DBX has no way to represent this
1706 so all we can do is output the variable as a pointer.
1707 If it's not a parameter, ignore it.
1708 (VAR_DECLs like this can be made by integrate.c.) */
1710 if (GET_CODE (XEXP (DECL_RTL (decl), 0)) == REG)
1713 current_sym_code = N_RSYM;
1714 current_sym_value = DBX_REGISTER_NUMBER (REGNO (XEXP (DECL_RTL (decl), 0)));
1718 current_sym_code = N_LSYM;
1719 /* DECL_RTL looks like (MEM (MEM (PLUS (REG...) (CONST_INT...)))).
1720 We want the value of that CONST_INT. */
1722 = DEBUGGER_AUTO_OFFSET (XEXP (XEXP (DECL_RTL (decl), 0), 0));
1725 /* Effectively do build_pointer_type, but don't cache this type,
1726 since it might be temporary whereas the type it points to
1727 might have been saved for inlining. */
1728 /* Don't use REFERENCE_TYPE because dbx can't handle that. */
1729 type = make_node (POINTER_TYPE);
1730 TREE_TYPE (type) = TREE_TYPE (decl);
1732 else if (GET_CODE (DECL_RTL (decl)) == MEM
1733 && GET_CODE (XEXP (DECL_RTL (decl), 0)) == REG)
1735 current_sym_code = N_LSYM;
1736 current_sym_value = DEBUGGER_AUTO_OFFSET (XEXP (DECL_RTL (decl), 0));
1738 else if (GET_CODE (DECL_RTL (decl)) == MEM
1739 && GET_CODE (XEXP (DECL_RTL (decl), 0)) == PLUS
1740 && GET_CODE (XEXP (XEXP (DECL_RTL (decl), 0), 1)) == CONST_INT)
1742 current_sym_code = N_LSYM;
1743 /* DECL_RTL looks like (MEM (PLUS (REG...) (CONST_INT...)))
1744 We want the value of that CONST_INT. */
1745 current_sym_value = DEBUGGER_AUTO_OFFSET (XEXP (DECL_RTL (decl), 0));
1747 else if (GET_CODE (DECL_RTL (decl)) == MEM
1748 && GET_CODE (XEXP (DECL_RTL (decl), 0)) == CONST)
1750 /* Handle an obscure case which can arise when optimizing and
1751 when there are few available registers. (This is *always*
1752 the case for i386/i486 targets). The DECL_RTL looks like
1753 (MEM (CONST ...)) even though this variable is a local `auto'
1754 or a local `register' variable. In effect, what has happened
1755 is that the reload pass has seen that all assignments and
1756 references for one such a local variable can be replaced by
1757 equivalent assignments and references to some static storage
1758 variable, thereby avoiding the need for a register. In such
1759 cases we're forced to lie to debuggers and tell them that
1760 this variable was itself `static'. */
1761 current_sym_code = N_LCSYM;
1763 current_sym_addr = XEXP (XEXP (DECL_RTL (decl), 0), 0);
1766 /* Address might be a MEM, when DECL is a variable-sized object.
1767 Or it might be const0_rtx, meaning previous passes
1768 want us to ignore this variable. */
1771 /* Ok, start a symtab entry and output the variable name. */
1774 #ifdef DBX_STATIC_BLOCK_START
1775 DBX_STATIC_BLOCK_START (asmfile, current_sym_code);
1778 /* One slight hitch: if this is a VAR_DECL which is a static
1779 class member, we must put out the mangled name instead of the
1783 /* Note also that static member (variable) names DO NOT begin
1784 with underscores in .stabs directives. */
1785 if (DECL_LANG_SPECIFIC (decl))
1786 name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl));
1788 name = IDENTIFIER_POINTER (DECL_NAME (decl));
1789 fprintf (asmfile, "%s \"%s:", ASM_STABS_OP, name);
1791 if (letter) putc (letter, asmfile);
1792 dbxout_type (type, 0, 0);
1793 dbxout_finish_symbol (decl);
1795 #ifdef DBX_STATIC_BLOCK_END
1796 DBX_STATIC_BLOCK_END (asmfile, current_sym_code);
1803 dbxout_prepare_symbol (decl)
1807 char *filename = DECL_SOURCE_FILE (decl);
1809 dbxout_source_file (asmfile, filename);
1814 dbxout_finish_symbol (sym)
1817 #ifdef DBX_FINISH_SYMBOL
1818 DBX_FINISH_SYMBOL (sym);
1823 line = DECL_SOURCE_LINE (sym);
1826 fprintf (asmfile, "\",%d,0,%d,", current_sym_code, line);
1827 if (current_sym_addr)
1828 output_addr_const (asmfile, current_sym_addr);
1830 fprintf (asmfile, "%d", current_sym_value);
1831 putc ('\n', asmfile);
1835 /* Output definitions of all the decls in a chain. */
1843 dbxout_symbol (syms, 1);
1844 syms = TREE_CHAIN (syms);
1848 /* The following two functions output definitions of function parameters.
1849 Each parameter gets a definition locating it in the parameter list.
1850 Each parameter that is a register variable gets a second definition
1851 locating it in the register.
1853 Printing or argument lists in gdb uses the definitions that
1854 locate in the parameter list. But reference to the variable in
1855 expressions uses preferentially the definition as a register. */
1857 /* Output definitions, referring to storage in the parmlist,
1858 of all the parms in PARMS, which is a chain of PARM_DECL nodes. */
1861 dbxout_parms (parms)
1864 for (; parms; parms = TREE_CHAIN (parms))
1865 if (DECL_NAME (parms) && TREE_TYPE (parms) != error_mark_node)
1867 dbxout_prepare_symbol (parms);
1869 /* Perform any necessary register eliminations on the parameter's rtl,
1870 so that the debugging output will be accurate. */
1871 DECL_INCOMING_RTL (parms)
1872 = eliminate_regs (DECL_INCOMING_RTL (parms), 0, NULL_RTX);
1873 DECL_RTL (parms) = eliminate_regs (DECL_RTL (parms), 0, NULL_RTX);
1874 #ifdef LEAF_REG_REMAP
1877 leaf_renumber_regs_insn (DECL_INCOMING_RTL (parms));
1878 leaf_renumber_regs_insn (DECL_RTL (parms));
1882 if (PARM_PASSED_IN_MEMORY (parms))
1884 rtx addr = XEXP (DECL_INCOMING_RTL (parms), 0);
1886 /* ??? Here we assume that the parm address is indexed
1887 off the frame pointer or arg pointer.
1888 If that is not true, we produce meaningless results,
1889 but do not crash. */
1890 if (GET_CODE (addr) == PLUS
1891 && GET_CODE (XEXP (addr, 1)) == CONST_INT)
1892 current_sym_value = INTVAL (XEXP (addr, 1));
1894 current_sym_value = 0;
1896 current_sym_code = N_PSYM;
1897 current_sym_addr = 0;
1900 if (DECL_NAME (parms))
1902 current_sym_nchars = 2 + IDENTIFIER_LENGTH (DECL_NAME (parms));
1904 fprintf (asmfile, "%s \"%s:%c", ASM_STABS_OP,
1905 IDENTIFIER_POINTER (DECL_NAME (parms)),
1906 DBX_MEMPARM_STABS_LETTER);
1910 current_sym_nchars = 8;
1911 fprintf (asmfile, "%s \"(anon):%c", ASM_STABS_OP,
1912 DBX_MEMPARM_STABS_LETTER);
1915 if (GET_CODE (DECL_RTL (parms)) == REG
1916 && REGNO (DECL_RTL (parms)) >= 0
1917 && REGNO (DECL_RTL (parms)) < FIRST_PSEUDO_REGISTER)
1918 dbxout_type (DECL_ARG_TYPE (parms), 0, 0);
1921 int original_value = current_sym_value;
1923 /* This is the case where the parm is passed as an int or double
1924 and it is converted to a char, short or float and stored back
1925 in the parmlist. In this case, describe the parm
1926 with the variable's declared type, and adjust the address
1927 if the least significant bytes (which we are using) are not
1929 #if BYTES_BIG_ENDIAN
1930 if (TREE_TYPE (parms) != DECL_ARG_TYPE (parms))
1931 current_sym_value += (GET_MODE_SIZE (TYPE_MODE (DECL_ARG_TYPE (parms)))
1932 - GET_MODE_SIZE (GET_MODE (DECL_RTL (parms))));
1935 if (GET_CODE (DECL_RTL (parms)) == MEM
1936 && GET_CODE (XEXP (DECL_RTL (parms), 0)) == PLUS
1937 && GET_CODE (XEXP (XEXP (DECL_RTL (parms), 0), 1)) == CONST_INT
1938 && INTVAL (XEXP (XEXP (DECL_RTL (parms), 0), 1)) == current_sym_value)
1939 dbxout_type (TREE_TYPE (parms), 0, 0);
1942 current_sym_value = original_value;
1943 dbxout_type (DECL_ARG_TYPE (parms), 0, 0);
1946 current_sym_value = DEBUGGER_ARG_OFFSET (current_sym_value, addr);
1947 dbxout_finish_symbol (parms);
1949 else if (GET_CODE (DECL_RTL (parms)) == REG)
1952 char regparm_letter;
1953 /* Parm passed in registers and lives in registers or nowhere. */
1955 current_sym_code = DBX_REGPARM_STABS_CODE;
1956 regparm_letter = DBX_REGPARM_STABS_LETTER;
1957 current_sym_addr = 0;
1959 /* If parm lives in a register, use that register;
1960 pretend the parm was passed there. It would be more consistent
1961 to describe the register where the parm was passed,
1962 but in practice that register usually holds something else. */
1963 if (REGNO (DECL_RTL (parms)) >= 0
1964 && REGNO (DECL_RTL (parms)) < FIRST_PSEUDO_REGISTER)
1965 best_rtl = DECL_RTL (parms);
1966 /* If the parm lives nowhere,
1967 use the register where it was passed. */
1969 best_rtl = DECL_INCOMING_RTL (parms);
1970 current_sym_value = DBX_REGISTER_NUMBER (REGNO (best_rtl));
1973 if (DECL_NAME (parms))
1975 current_sym_nchars = 2 + IDENTIFIER_LENGTH (DECL_NAME (parms));
1976 fprintf (asmfile, "%s \"%s:%c", ASM_STABS_OP,
1977 IDENTIFIER_POINTER (DECL_NAME (parms)),
1982 current_sym_nchars = 8;
1983 fprintf (asmfile, "%s \"(anon):%c", ASM_STABS_OP,
1987 dbxout_type (DECL_ARG_TYPE (parms), 0, 0);
1988 dbxout_finish_symbol (parms);
1990 else if (GET_CODE (DECL_RTL (parms)) == MEM
1991 && GET_CODE (XEXP (DECL_RTL (parms), 0)) == REG)
1992 /* && rtx_equal_p (XEXP (DECL_RTL (parms), 0),
1993 DECL_INCOMING_RTL (parms))) */
1995 /* Parm was passed via invisible reference.
1996 That is, its address was passed in a register.
1997 Output it as if it lived in that register.
1998 The debugger will know from the type
1999 that it was actually passed by invisible reference. */
2001 char regparm_letter;
2002 /* Parm passed in registers and lives in registers or nowhere. */
2004 current_sym_code = DBX_REGPARM_STABS_CODE;
2005 regparm_letter = DBX_REGPARM_STABS_LETTER;
2007 /* DECL_RTL looks like (MEM (REG...). Get the register number. */
2008 current_sym_value = REGNO (XEXP (DECL_RTL (parms), 0));
2009 current_sym_addr = 0;
2012 if (DECL_NAME (parms))
2014 current_sym_nchars = 2 + strlen (IDENTIFIER_POINTER (DECL_NAME (parms)));
2016 fprintf (asmfile, "%s \"%s:%c", ASM_STABS_OP,
2017 IDENTIFIER_POINTER (DECL_NAME (parms)),
2018 DBX_REGPARM_STABS_LETTER);
2022 current_sym_nchars = 8;
2023 fprintf (asmfile, "%s \"(anon):%c", ASM_STABS_OP,
2024 DBX_REGPARM_STABS_LETTER);
2027 dbxout_type (TREE_TYPE (parms), 0, 0);
2028 dbxout_finish_symbol (parms);
2030 else if (GET_CODE (DECL_RTL (parms)) == MEM
2031 && XEXP (DECL_RTL (parms), 0) != const0_rtx)
2033 /* Parm was passed in registers but lives on the stack. */
2035 current_sym_code = N_PSYM;
2036 /* DECL_RTL looks like (MEM (PLUS (REG...) (CONST_INT...))),
2037 in which case we want the value of that CONST_INT,
2038 or (MEM (REG ...)) or (MEM (MEM ...)),
2039 in which case we use a value of zero. */
2040 if (GET_CODE (XEXP (DECL_RTL (parms), 0)) == REG
2041 || GET_CODE (XEXP (DECL_RTL (parms), 0)) == MEM)
2042 current_sym_value = 0;
2044 current_sym_value = INTVAL (XEXP (XEXP (DECL_RTL (parms), 0), 1));
2045 current_sym_addr = 0;
2048 if (DECL_NAME (parms))
2050 current_sym_nchars = 2 + strlen (IDENTIFIER_POINTER (DECL_NAME (parms)));
2052 fprintf (asmfile, "%s \"%s:%c", ASM_STABS_OP,
2053 IDENTIFIER_POINTER (DECL_NAME (parms)),
2054 DBX_MEMPARM_STABS_LETTER);
2058 current_sym_nchars = 8;
2059 fprintf (asmfile, "%s \"(anon):%c", ASM_STABS_OP,
2060 DBX_MEMPARM_STABS_LETTER);
2064 = DEBUGGER_ARG_OFFSET (current_sym_value,
2065 XEXP (DECL_RTL (parms), 0));
2066 dbxout_type (TREE_TYPE (parms), 0, 0);
2067 dbxout_finish_symbol (parms);
2072 /* Output definitions for the places where parms live during the function,
2073 when different from where they were passed, when the parms were passed
2076 It is not useful to do this for parms passed in registers
2077 that live during the function in different registers, because it is
2078 impossible to look in the passed register for the passed value,
2079 so we use the within-the-function register to begin with.
2081 PARMS is a chain of PARM_DECL nodes. */
2084 dbxout_reg_parms (parms)
2087 for (; parms; parms = TREE_CHAIN (parms))
2088 if (DECL_NAME (parms))
2090 dbxout_prepare_symbol (parms);
2092 /* Report parms that live in registers during the function
2093 but were passed in memory. */
2094 if (GET_CODE (DECL_RTL (parms)) == REG
2095 && REGNO (DECL_RTL (parms)) >= 0
2096 && REGNO (DECL_RTL (parms)) < FIRST_PSEUDO_REGISTER
2097 && PARM_PASSED_IN_MEMORY (parms))
2099 current_sym_code = N_RSYM;
2100 current_sym_value = DBX_REGISTER_NUMBER (REGNO (DECL_RTL (parms)));
2101 current_sym_addr = 0;
2104 if (DECL_NAME (parms))
2106 current_sym_nchars = 2 + IDENTIFIER_LENGTH (DECL_NAME (parms));
2107 fprintf (asmfile, "%s \"%s:r", ASM_STABS_OP,
2108 IDENTIFIER_POINTER (DECL_NAME (parms)));
2112 current_sym_nchars = 8;
2113 fprintf (asmfile, "%s \"(anon):r", ASM_STABS_OP);
2115 dbxout_type (TREE_TYPE (parms), 0, 0);
2116 dbxout_finish_symbol (parms);
2118 /* Report parms that live in memory but not where they were passed. */
2119 else if (GET_CODE (DECL_RTL (parms)) == MEM
2120 && GET_CODE (XEXP (DECL_RTL (parms), 0)) == PLUS
2121 && GET_CODE (XEXP (XEXP (DECL_RTL (parms), 0), 1)) == CONST_INT
2122 && PARM_PASSED_IN_MEMORY (parms)
2123 && ! rtx_equal_p (DECL_RTL (parms), DECL_INCOMING_RTL (parms)))
2125 #if 0 /* ??? It is not clear yet what should replace this. */
2126 int offset = DECL_OFFSET (parms) / BITS_PER_UNIT;
2127 /* A parm declared char is really passed as an int,
2128 so it occupies the least significant bytes.
2129 On a big-endian machine those are not the low-numbered ones. */
2130 #if BYTES_BIG_ENDIAN
2131 if (offset != -1 && TREE_TYPE (parms) != DECL_ARG_TYPE (parms))
2132 offset += (GET_MODE_SIZE (TYPE_MODE (DECL_ARG_TYPE (parms)))
2133 - GET_MODE_SIZE (GET_MODE (DECL_RTL (parms))));
2135 if (INTVAL (XEXP (XEXP (DECL_RTL (parms), 0), 1)) != offset) {...}
2137 current_sym_code = N_LSYM;
2138 current_sym_value = DEBUGGER_AUTO_OFFSET (XEXP (DECL_RTL (parms), 0));
2139 current_sym_addr = 0;
2141 if (DECL_NAME (parms))
2143 current_sym_nchars = 2 + IDENTIFIER_LENGTH (DECL_NAME (parms));
2144 fprintf (asmfile, "%s \"%s:", ASM_STABS_OP,
2145 IDENTIFIER_POINTER (DECL_NAME (parms)));
2149 current_sym_nchars = 8;
2150 fprintf (asmfile, "%s \"(anon):", ASM_STABS_OP);
2152 dbxout_type (TREE_TYPE (parms), 0, 0);
2153 dbxout_finish_symbol (parms);
2156 else if (GET_CODE (DECL_RTL (parms)) == MEM
2157 && GET_CODE (XEXP (DECL_RTL (parms), 0)) == REG)
2159 /* Parm was passed via invisible reference.
2160 That is, its address was passed in a register.
2161 Output it as if it lived in that register.
2162 The debugger will know from the type
2163 that it was actually passed by invisible reference. */
2165 current_sym_code = N_RSYM;
2167 /* DECL_RTL looks like (MEM (REG...). Get the register number. */
2168 current_sym_value = REGNO (XEXP (DECL_RTL (parms), 0));
2169 current_sym_addr = 0;
2172 if (DECL_NAME (parms))
2174 current_sym_nchars = 2 + strlen (IDENTIFIER_POINTER (DECL_NAME (parms)));
2176 fprintf (asmfile, "%s \"%s:r", ASM_STABS_OP,
2177 IDENTIFIER_POINTER (DECL_NAME (parms)));
2181 current_sym_nchars = 8;
2182 fprintf (asmfile, "%s \"(anon):r", ASM_STABS_OP);
2185 dbxout_type (TREE_TYPE (parms), 0, 0);
2186 dbxout_finish_symbol (parms);
2192 /* Given a chain of ..._TYPE nodes (as come in a parameter list),
2193 output definitions of those names, in raw form */
2201 putc (',', asmfile);
2202 dbxout_type (TREE_VALUE (args), 0, 0);
2204 args = TREE_CHAIN (args);
2208 /* Given a chain of ..._TYPE nodes,
2209 find those which have typedef names and output those names.
2210 This is to ensure those types get output. */
2213 dbxout_types (types)
2214 register tree types;
2218 if (TYPE_NAME (types)
2219 && TREE_CODE (TYPE_NAME (types)) == TYPE_DECL
2220 && ! TREE_ASM_WRITTEN (TYPE_NAME (types)))
2221 dbxout_symbol (TYPE_NAME (types), 1);
2222 types = TREE_CHAIN (types);
2226 /* Output everything about a symbol block (a BLOCK node
2227 that represents a scope level),
2228 including recursive output of contained blocks.
2230 BLOCK is the BLOCK node.
2231 DEPTH is its depth within containing symbol blocks.
2232 ARGS is usually zero; but for the outermost block of the
2233 body of a function, it is a chain of PARM_DECLs for the function parameters.
2234 We output definitions of all the register parms
2235 as if they were local variables of that block.
2237 If -g1 was used, we count blocks just the same, but output nothing
2238 except for the outermost block.
2240 Actually, BLOCK may be several blocks chained together.
2241 We handle them all in sequence. */
2244 dbxout_block (block, depth, args)
2245 register tree block;
2253 /* Ignore blocks never expanded or otherwise marked as real. */
2254 if (TREE_USED (block))
2256 #ifndef DBX_LBRAC_FIRST
2257 /* In dbx format, the syms of a block come before the N_LBRAC. */
2258 if (debug_info_level != DINFO_LEVEL_TERSE || depth == 0)
2259 dbxout_syms (BLOCK_VARS (block));
2261 dbxout_reg_parms (args);
2264 /* Now output an N_LBRAC symbol to represent the beginning of
2265 the block. Use the block's tree-walk order to generate
2266 the assembler symbols LBBn and LBEn
2267 that final will define around the code in this block. */
2268 if (depth > 0 && debug_info_level != DINFO_LEVEL_TERSE)
2271 blocknum = next_block_number++;
2272 ASM_GENERATE_INTERNAL_LABEL (buf, "LBB", blocknum);
2274 if (BLOCK_HANDLER_BLOCK (block))
2276 /* A catch block. Must precede N_LBRAC. */
2277 tree decl = BLOCK_VARS (block);
2280 #ifdef DBX_OUTPUT_CATCH
2281 DBX_OUTPUT_CATCH (asmfile, decl, buf);
2283 fprintf (asmfile, "%s \"%s:C1\",%d,0,0,", ASM_STABS_OP,
2284 IDENTIFIER_POINTER (DECL_NAME (decl)), N_CATCH);
2285 assemble_name (asmfile, buf);
2286 fprintf (asmfile, "\n");
2288 decl = TREE_CHAIN (decl);
2292 #ifdef DBX_OUTPUT_LBRAC
2293 DBX_OUTPUT_LBRAC (asmfile, buf);
2295 fprintf (asmfile, "%s %d,0,0,", ASM_STABN_OP, N_LBRAC);
2296 assemble_name (asmfile, buf);
2297 #if DBX_BLOCKS_FUNCTION_RELATIVE
2298 fputc ('-', asmfile);
2299 assemble_name (asmfile, IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (current_function_decl)));
2301 fprintf (asmfile, "\n");
2305 /* Count blocks the same way regardless of debug_info_level. */
2306 next_block_number++;
2308 #ifdef DBX_LBRAC_FIRST
2309 /* On some weird machines, the syms of a block
2310 come after the N_LBRAC. */
2311 if (debug_info_level != DINFO_LEVEL_TERSE || depth == 0)
2312 dbxout_syms (BLOCK_VARS (block));
2314 dbxout_reg_parms (args);
2317 /* Output the subblocks. */
2318 dbxout_block (BLOCK_SUBBLOCKS (block), depth + 1, NULL_TREE);
2320 /* Refer to the marker for the end of the block. */
2321 if (depth > 0 && debug_info_level != DINFO_LEVEL_TERSE)
2324 ASM_GENERATE_INTERNAL_LABEL (buf, "LBE", blocknum);
2325 #ifdef DBX_OUTPUT_RBRAC
2326 DBX_OUTPUT_RBRAC (asmfile, buf);
2328 fprintf (asmfile, "%s %d,0,0,", ASM_STABN_OP, N_RBRAC);
2329 assemble_name (asmfile, buf);
2330 #if DBX_BLOCKS_FUNCTION_RELATIVE
2331 fputc ('-', asmfile);
2332 assemble_name (asmfile, IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (current_function_decl)));
2334 fprintf (asmfile, "\n");
2338 block = BLOCK_CHAIN (block);
2342 /* Output the information about a function and its arguments and result.
2343 Usually this follows the function's code,
2344 but on some systems, it comes before. */
2347 dbxout_really_begin_function (decl)
2350 dbxout_symbol (decl, 0);
2351 dbxout_parms (DECL_ARGUMENTS (decl));
2352 if (DECL_NAME (DECL_RESULT (decl)) != 0)
2353 dbxout_symbol (DECL_RESULT (decl), 1);
2356 /* Called at beginning of output of function definition. */
2359 dbxout_begin_function (decl)
2362 #ifdef DBX_FUNCTION_FIRST
2363 dbxout_really_begin_function (decl);
2367 /* Output dbx data for a function definition.
2368 This includes a definition of the function name itself (a symbol),
2369 definitions of the parameters (locating them in the parameter list)
2370 and then output the block that makes up the function's body
2371 (including all the auto variables of the function). */
2374 dbxout_function (decl)
2377 #ifndef DBX_FUNCTION_FIRST
2378 dbxout_really_begin_function (decl);
2380 dbxout_block (DECL_INITIAL (decl), 0, DECL_ARGUMENTS (decl));
2381 #ifdef DBX_OUTPUT_FUNCTION_END
2382 DBX_OUTPUT_FUNCTION_END (asmfile, decl);
2385 #endif /* DBX_DEBUGGING_INFO */