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"
85 #ifdef XCOFF_DEBUGGING_INFO
90 #define ASM_STABS_OP ".stabs"
94 #define ASM_STABN_OP ".stabn"
97 #ifndef DBX_TYPE_DECL_STABS_CODE
98 #define DBX_TYPE_DECL_STABS_CODE N_LSYM
101 #ifndef DBX_STATIC_CONST_VAR_CODE
102 #define DBX_STATIC_CONST_VAR_CODE N_FUN
105 #ifndef DBX_REGPARM_STABS_CODE
106 #define DBX_REGPARM_STABS_CODE N_RSYM
109 #ifndef DBX_REGPARM_STABS_LETTER
110 #define DBX_REGPARM_STABS_LETTER 'P'
113 #ifndef DBX_MEMPARM_STABS_LETTER
114 #define DBX_MEMPARM_STABS_LETTER 'p'
117 /* Nonzero means if the type has methods, only output debugging
118 information if methods are actually written to the asm file. */
120 static int flag_minimal_debug = 1;
122 /* Nonzero if we have actually used any of the GDB extensions
123 to the debugging format. The idea is that we use them for the
124 first time only if there's a strong reason, but once we have done that,
125 we use them whenever convenient. */
127 static int have_used_extensions = 0;
131 /* Typical USG systems don't have stab.h, and they also have
132 no use for DBX-format debugging info. */
134 #if defined (DBX_DEBUGGING_INFO) || defined (XCOFF_DEBUGGING_INFO)
136 #ifdef DEBUG_SYMS_TEXT
137 #define FORCE_TEXT text_section ();
142 #if defined (USG) || defined (NO_STAB_H)
143 #include "gstab.h" /* If doing DBX on sysV, use our own stab.h. */
145 #include <stab.h> /* On BSD, use the system's stab.h. */
147 /* This is a GNU extension we need to reference in this file. */
154 #define STAB_CODE_TYPE enum __stab_debug_code
156 #define STAB_CODE_TYPE int
159 /* 1 if PARM is passed to this function in memory. */
161 #define PARM_PASSED_IN_MEMORY(PARM) \
162 (GET_CODE (DECL_INCOMING_RTL (PARM)) == MEM)
164 /* A C expression for the integer offset value of an automatic variable
165 (N_LSYM) having address X (an RTX). */
166 #ifndef DEBUGGER_AUTO_OFFSET
167 #define DEBUGGER_AUTO_OFFSET(X) \
168 (GET_CODE (X) == PLUS ? INTVAL (XEXP (X, 1)) : 0)
171 /* A C expression for the integer offset value of an argument (N_PSYM)
172 having address X (an RTX). The nominal offset is OFFSET. */
173 #ifndef DEBUGGER_ARG_OFFSET
174 #define DEBUGGER_ARG_OFFSET(OFFSET, X) (OFFSET)
177 /* Stream for writing to assembler file. */
179 static FILE *asmfile;
181 /* Last source file name mentioned in a NOTE insn. */
183 static char *lastfile;
185 /* Current working directory. */
189 enum typestatus {TYPE_UNSEEN, TYPE_XREF, TYPE_DEFINED};
191 /* Vector recording the status of describing C data types.
192 When we first notice a data type (a tree node),
193 we assign it a number using next_type_number.
194 That is its index in this vector.
195 The vector element says whether we have yet output
196 the definition of the type. TYPE_XREF says we have
197 output it as a cross-reference only. */
199 enum typestatus *typevec;
201 /* Number of elements of space allocated in `typevec'. */
203 static int typevec_len;
205 /* In dbx output, each type gets a unique number.
206 This is the number for the next type output.
207 The number, once assigned, is in the TYPE_SYMTAB_ADDRESS field. */
209 static int next_type_number;
211 /* In dbx output, we must assign symbol-blocks id numbers
212 in the order in which their beginnings are encountered.
213 We output debugging info that refers to the beginning and
214 end of the ranges of code in each block
215 with assembler labels LBBn and LBEn, where n is the block number.
216 The labels are generated in final, which assigns numbers to the
217 blocks in the same way. */
219 static int next_block_number;
221 /* These variables are for dbxout_symbol to communicate to
222 dbxout_finish_symbol.
223 current_sym_code is the symbol-type-code, a symbol N_... define in stab.h.
224 current_sym_value and current_sym_addr are two ways to address the
225 value to store in the symtab entry.
226 current_sym_addr if nonzero represents the value as an rtx.
227 If that is zero, current_sym_value is used. This is used
228 when the value is an offset (such as for auto variables,
229 register variables and parms). */
231 static STAB_CODE_TYPE current_sym_code;
232 static int current_sym_value;
233 static rtx current_sym_addr;
235 /* Number of chars of symbol-description generated so far for the
236 current symbol. Used by CHARS and CONTIN. */
238 static int current_sym_nchars;
240 /* Report having output N chars of the current symbol-description. */
242 #define CHARS(N) (current_sym_nchars += (N))
244 /* Break the current symbol-description, generating a continuation,
245 if it has become long. */
247 #ifndef DBX_CONTIN_LENGTH
248 #define DBX_CONTIN_LENGTH 80
251 #if DBX_CONTIN_LENGTH > 0
253 do {if (current_sym_nchars > DBX_CONTIN_LENGTH) dbxout_continue ();} while (0)
258 void dbxout_types ();
260 void dbxout_symbol ();
261 static void dbxout_type_name ();
262 static void dbxout_type ();
263 static void dbxout_typedefs ();
264 static void dbxout_prepare_symbol ();
265 static void dbxout_finish_symbol ();
266 static void dbxout_continue ();
267 static void print_int_cst_octal ();
268 static void print_octal ();
270 #if 0 /* Not clear we will actually need this. */
272 /* Return the absolutized filename for the given relative
273 filename. Note that if that filename is already absolute, it may
274 still be returned in a modified form because this routine also
275 eliminates redundant slashes and single dots and eliminates double
276 dots to get a shortest possible filename from the given input
277 filename. The absolutization of relative filenames is made by
278 assuming that the given filename is to be taken as relative to
279 the first argument (cwd) or to the current directory if cwd is
283 abspath (rel_filename)
286 /* Setup the current working directory as needed. */
288 = (char *) alloca (strlen (cwd) + strlen (rel_filename) + 1);
289 char *endp = abs_buffer;
293 /* Copy the filename (possibly preceded by the current working
294 directory name) into the absolutization buffer. */
299 if (rel_filename[0] != '/')
302 while (*endp++ = *src_p++)
304 *(endp-1) = '/'; /* overwrite null */
306 src_p = rel_filename;
307 while (*endp++ = *src_p++)
312 /* Now make a copy of abs_buffer into abs_buffer, shortening the
313 filename (by taking out slashes and dots) as we go. */
315 outp = inp = abs_buffer;
316 *outp++ = *inp++; /* copy first slash */
321 else if (inp[0] == '/' && outp[-1] == '/')
326 else if (inp[0] == '.' && outp[-1] == '/')
330 else if (inp[1] == '/')
335 else if ((inp[1] == '.') && (inp[2] == 0 || inp[2] == '/'))
337 inp += (inp[2] == '/') ? 3 : 2;
339 while (outp >= abs_buffer && *outp != '/')
341 if (outp < abs_buffer)
343 /* Catch cases like /.. where we try to backup to a
344 point above the absolute root of the logical file
347 fprintf (stderr, "%s: invalid file name: %s\n",
348 pname, rel_filename);
358 /* On exit, make sure that there is a trailing null, and make sure that
359 the last character of the returned string is *not* a slash. */
365 /* Make a copy (in the heap) of the stuff left in the absolutization
366 buffer and return a pointer to the copy. */
368 value = (char *) oballoc (strlen (abs_buffer) + 1);
369 strcpy (value, abs_buffer);
374 /* At the beginning of compilation, start writing the symbol table.
375 Initialize `typevec' and output the standard data types of C. */
378 dbxout_init (asm_file, input_file_name, syms)
380 char *input_file_name;
383 char ltext_label_name[100];
388 typevec = (enum typestatus *) xmalloc (typevec_len * sizeof typevec[0]);
389 bzero (typevec, typevec_len * sizeof typevec[0]);
391 /* Convert Ltext into the appropriate format for local labels in case
392 the system doesn't insert underscores in front of user generated
394 ASM_GENERATE_INTERNAL_LABEL (ltext_label_name, "Ltext", 0);
396 /* Put the current working directory in an N_SO symbol. */
397 #ifndef DBX_WORKING_DIRECTORY /* Only some versions of DBX want this,
398 but GDB always does. */
399 if (use_gnu_debug_info_extensions)
402 if (cwd || (cwd = getpwd ()))
404 #ifdef DBX_OUTPUT_MAIN_SOURCE_DIRECTORY
405 DBX_OUTPUT_MAIN_SOURCE_DIRECTORY (asmfile, cwd);
406 #else /* no DBX_OUTPUT_MAIN_SOURCE_DIRECTORY */
407 fprintf (asmfile, "%s \"%s/\",%d,0,0,%s\n", ASM_STABS_OP,
408 cwd, N_SO, <ext_label_name[1]);
409 #endif /* no DBX_OUTPUT_MAIN_SOURCE_DIRECTORY */
413 #ifdef DBX_OUTPUT_MAIN_SOURCE_FILENAME
414 /* This should NOT be DBX_OUTPUT_SOURCE_FILENAME. That
415 would give us an N_SOL, and we want an N_SO. */
416 DBX_OUTPUT_MAIN_SOURCE_FILENAME (asmfile, input_file_name);
417 #else /* no DBX_OUTPUT_MAIN_SOURCE_FILENAME */
418 /* We include outputting `Ltext:' here,
419 because that gives you a way to override it. */
420 /* Used to put `Ltext:' before the reference, but that loses on sun 4. */
421 fprintf (asmfile, "%s \"%s\",%d,0,0,%s\n", ASM_STABS_OP, input_file_name,
422 N_SO, <ext_label_name[1]);
424 ASM_OUTPUT_INTERNAL_LABEL (asmfile, "Ltext", 0);
425 #endif /* no DBX_OUTPUT_MAIN_SOURCE_FILENAME */
427 /* Possibly output something to inform GDB that this compilation was by
428 GCC. It's easier for GDB to parse it when after the N_SO's. This
429 is used in Solaris 2. */
430 #ifdef ASM_IDENTIFY_GCC_AFTER_SOURCE
431 ASM_IDENTIFY_GCC_AFTER_SOURCE (asmfile);
434 lastfile = input_file_name;
436 next_type_number = 1;
437 next_block_number = 2;
439 /* Make sure that types `int' and `char' have numbers 1 and 2.
440 Definitions of other integer types will refer to those numbers.
441 (Actually it should no longer matter what their numbers are.
442 Also, if any types with tags have been defined, dbxout_symbol
443 will output them first, so the numbers won't be 1 and 2. That
444 happens in C++. So it's a good thing it should no longer matter). */
446 #ifdef DBX_OUTPUT_STANDARD_TYPES
447 DBX_OUTPUT_STANDARD_TYPES (syms);
449 dbxout_symbol (TYPE_NAME (integer_type_node), 0);
450 dbxout_symbol (TYPE_NAME (char_type_node), 0);
453 /* Get all permanent types that have typedef names,
454 and output them all, except for those already output. */
456 dbxout_typedefs (syms);
459 /* Output any typedef names for types described by TYPE_DECLs in SYMS,
460 in the reverse order from that which is found in SYMS. */
463 dbxout_typedefs (syms)
468 dbxout_typedefs (TREE_CHAIN (syms));
469 if (TREE_CODE (syms) == TYPE_DECL)
471 tree type = TREE_TYPE (syms);
473 && TREE_CODE (TYPE_NAME (type)) == TYPE_DECL
474 && ! TREE_ASM_WRITTEN (TYPE_NAME (type)))
475 dbxout_symbol (TYPE_NAME (type), 0);
480 /* Output debugging info to FILE to switch to sourcefile FILENAME. */
483 dbxout_source_file (file, filename)
487 char ltext_label_name[100];
489 if (filename && (lastfile == 0 || strcmp (filename, lastfile)))
491 #ifdef DBX_OUTPUT_SOURCE_FILENAME
492 DBX_OUTPUT_SOURCE_FILENAME (file, filename);
494 ASM_GENERATE_INTERNAL_LABEL (ltext_label_name, "Ltext", 0);
495 fprintf (file, "%s \"%s\",%d,0,0,%s\n", ASM_STABS_OP,
496 filename, N_SOL, <ext_label_name[1]);
502 /* Output a line number symbol entry into output stream FILE,
503 for source file FILENAME and line number LINENO. */
506 dbxout_source_line (file, filename, lineno)
511 dbxout_source_file (file, filename);
513 #ifdef ASM_OUTPUT_SOURCE_LINE
514 ASM_OUTPUT_SOURCE_LINE (file, lineno);
516 fprintf (file, "\t%s %d,0,%d\n", ASM_STABD_OP, N_SLINE, lineno);
520 /* At the end of compilation, finish writing the symbol table.
521 Unless you define DBX_OUTPUT_MAIN_SOURCE_FILE_END, the default is
525 dbxout_finish (file, filename)
529 #ifdef DBX_OUTPUT_MAIN_SOURCE_FILE_END
530 DBX_OUTPUT_MAIN_SOURCE_FILE_END (file, filename);
531 #endif /* DBX_OUTPUT_MAIN_SOURCE_FILE_END */
534 /* Continue a symbol-description that gets too big.
535 End one symbol table entry with a double-backslash
536 and start a new one, eventually producing something like
537 .stabs "start......\\",code,0,value
538 .stabs "...rest",code,0,value */
543 #ifdef DBX_CONTIN_CHAR
544 fprintf (asmfile, "%c", DBX_CONTIN_CHAR);
546 fprintf (asmfile, "\\\\");
548 dbxout_finish_symbol (NULL_TREE);
549 fprintf (asmfile, "%s \"", ASM_STABS_OP);
550 current_sym_nchars = 0;
553 /* Subroutine of `dbxout_type'. Output the type fields of TYPE.
554 This must be a separate function because anonymous unions require
558 dbxout_type_fields (type)
562 for (tem = TYPE_FIELDS (type); tem; tem = TREE_CHAIN (tem))
564 /* Output the name, type, position (in bits), size (in bits)
566 if (DECL_NAME (tem) == NULL_TREE
567 && TREE_CODE (TREE_TYPE (tem)) == UNION_TYPE)
568 dbxout_type_fields (TREE_TYPE (tem));
569 /* Omit here local type decls until we know how to support them. */
570 else if (TREE_CODE (tem) == TYPE_DECL)
572 /* Omit here the nameless fields that are used to skip bits. */
573 else if (DECL_NAME (tem) != 0 && TREE_CODE (tem) != CONST_DECL)
575 /* Continue the line if necessary,
576 but not before the first field. */
577 if (tem != TYPE_FIELDS (type))
580 if (use_gnu_debug_info_extensions
581 && flag_minimal_debug
582 && TREE_CODE (tem) == FIELD_DECL
583 && DECL_VIRTUAL_P (tem)
584 && DECL_ASSEMBLER_NAME (tem))
586 have_used_extensions = 1;
587 CHARS (3 + IDENTIFIER_LENGTH (DECL_NAME (TYPE_NAME (DECL_FCONTEXT (tem)))));
588 fputs (IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (tem)), asmfile);
589 dbxout_type (DECL_FCONTEXT (tem), 0, 0);
590 fprintf (asmfile, ":");
591 dbxout_type (TREE_TYPE (tem), 0, 0);
592 fprintf (asmfile, ",%d;",
593 TREE_INT_CST_LOW (DECL_FIELD_BITPOS (tem)));
597 fprintf (asmfile, "%s:", IDENTIFIER_POINTER (DECL_NAME (tem)));
598 CHARS (2 + IDENTIFIER_LENGTH (DECL_NAME (tem)));
600 if (use_gnu_debug_info_extensions
601 && (TREE_PRIVATE (tem) || TREE_PROTECTED (tem)
602 || TREE_CODE (tem) != FIELD_DECL))
604 have_used_extensions = 1;
606 putc ((TREE_PRIVATE (tem) ? '0'
607 : TREE_PROTECTED (tem) ? '1' : '2'),
612 dbxout_type ((TREE_CODE (tem) == FIELD_DECL
613 && DECL_BIT_FIELD_TYPE (tem))
614 ? DECL_BIT_FIELD_TYPE (tem)
615 : TREE_TYPE (tem), 0, 0);
617 if (TREE_CODE (tem) == VAR_DECL)
619 if (TREE_STATIC (tem) && use_gnu_debug_info_extensions)
621 char *name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (tem));
622 have_used_extensions = 1;
623 fprintf (asmfile, ":%s;", name);
624 CHARS (strlen (name));
628 /* If TEM is non-static, GDB won't understand it. */
629 fprintf (asmfile, ",0,0;");
632 else if (TREE_CODE (DECL_FIELD_BITPOS (tem)) == INTEGER_CST)
634 fprintf (asmfile, ",%d,%d;",
635 TREE_INT_CST_LOW (DECL_FIELD_BITPOS (tem)),
636 TREE_INT_CST_LOW (DECL_SIZE (tem)));
639 /* This has yet to be implemented. */
646 /* Subroutine of `dbxout_type_methods'. Output debug info about the
647 method described DECL. DEBUG_NAME is an encoding of the method's
648 type signature. ??? We may be able to do without DEBUG_NAME altogether
652 dbxout_type_method_1 (decl, debug_name)
656 tree firstarg = TREE_VALUE (TYPE_ARG_TYPES (TREE_TYPE (decl)));
659 if (TREE_CODE (TREE_TYPE (decl)) == FUNCTION_TYPE)
661 else /* it's a METHOD_TYPE. */
663 /* A for normal functions.
664 B for `const' member functions.
665 C for `volatile' member functions.
666 D for `const volatile' member functions. */
667 if (TYPE_READONLY (TREE_TYPE (firstarg)))
669 if (TYPE_VOLATILE (TREE_TYPE (firstarg)))
672 if (DECL_VINDEX (decl))
678 fprintf (asmfile, ":%s;%c%c%c", debug_name,
679 TREE_PRIVATE (decl) ? '0' : TREE_PROTECTED (decl) ? '1' : '2', c1, c2);
680 CHARS (IDENTIFIER_LENGTH (DECL_ASSEMBLER_NAME (decl)) + 6
681 - (debug_name - IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl))));
682 if (DECL_VINDEX (decl))
684 fprintf (asmfile, "%d;",
685 TREE_INT_CST_LOW (DECL_VINDEX (decl)));
686 dbxout_type (DECL_CONTEXT (decl), 0, 0);
687 fprintf (asmfile, ";");
692 /* Subroutine of `dbxout_type'. Output debug info about the methods defined
696 dbxout_type_methods (type)
699 /* C++: put out the method names and their parameter lists */
700 tree methods = TYPE_METHODS (type);
702 register tree fndecl;
704 char formatted_type_identifier_length[16];
705 register int type_identifier_length;
707 if (methods == NULL_TREE)
710 type_encoding = DECL_NAME (TYPE_NAME (type));
712 /* C++: Template classes break some assumptions made by this code about
713 the class names, constructor names, and encodings for assembler
714 label names. For now, disable output of dbx info for them. */
716 char *ptr = IDENTIFIER_POINTER (type_encoding);
717 /* This should use index. (mrs) */
718 while (*ptr && *ptr != '<') ptr++;
725 warning ("dbx info for template class methods not yet supported");
731 type_identifier_length = IDENTIFIER_LENGTH (type_encoding);
733 sprintf(formatted_type_identifier_length, "%d", type_identifier_length);
735 if (TREE_CODE (methods) == FUNCTION_DECL)
737 else if (TREE_VEC_ELT (methods, 0) != NULL_TREE)
738 fndecl = TREE_VEC_ELT (methods, 0);
740 fndecl = TREE_VEC_ELT (methods, 1);
744 tree name = DECL_NAME (fndecl);
747 /* Group together all the methods for the same operation.
748 These differ in the types of the arguments. */
749 for (last = NULL_TREE;
750 fndecl && (last == NULL_TREE || DECL_NAME (fndecl) == DECL_NAME (last));
751 fndecl = TREE_CHAIN (fndecl))
752 /* Output the name of the field (after overloading), as
753 well as the name of the field before overloading, along
754 with its parameter list */
756 /* This is the "mangled" name of the method.
757 It encodes the argument types. */
758 char *debug_name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (fndecl));
765 if (DECL_IGNORED_P (fndecl))
768 if (flag_minimal_debug)
770 /* Detect ordinary methods because their mangled names
771 start with the operation name. */
772 if (!strncmp (IDENTIFIER_POINTER (name), debug_name,
773 IDENTIFIER_LENGTH (name)))
775 debug_name += IDENTIFIER_LENGTH (name);
776 if (debug_name[0] == '_' && debug_name[1] == '_')
778 char *method_name = debug_name + 2;
779 char *length_ptr = formatted_type_identifier_length;
780 /* Get past const and volatile qualifiers. */
781 while (*method_name == 'C' || *method_name == 'V')
783 /* Skip digits for length of type_encoding. */
784 while (*method_name == *length_ptr && *length_ptr)
785 length_ptr++, method_name++;
786 if (! strncmp (method_name,
787 IDENTIFIER_POINTER (type_encoding),
788 type_identifier_length))
789 method_name += type_identifier_length;
790 debug_name = method_name;
793 /* Detect constructors by their style of name mangling. */
794 else if (debug_name[0] == '_' && debug_name[1] == '_')
796 char *ctor_name = debug_name + 2;
797 char *length_ptr = formatted_type_identifier_length;
798 while (*ctor_name == 'C' || *ctor_name == 'V')
800 /* Skip digits for length of type_encoding. */
801 while (*ctor_name == *length_ptr && *length_ptr)
802 length_ptr++, ctor_name++;
803 if (!strncmp (IDENTIFIER_POINTER (type_encoding), ctor_name,
804 type_identifier_length))
805 debug_name = ctor_name + type_identifier_length;
807 /* The other alternative is a destructor. */
811 /* Output the operation name just once, for the first method
815 fprintf (asmfile, "%s::", IDENTIFIER_POINTER (name));
816 CHARS (IDENTIFIER_LENGTH (name) + 2);
821 dbxout_type (TREE_TYPE (fndecl), 0, destructor);
823 dbxout_type_method_1 (fndecl, debug_name);
833 /* Output a reference to a type. If the type has not yet been
834 described in the dbx output, output its definition now.
835 For a type already defined, just refer to its definition
836 using the type number.
838 If FULL is nonzero, and the type has been described only with
839 a forward-reference, output the definition now.
840 If FULL is zero in this case, just refer to the forward-reference
841 using the number previously allocated.
843 If SHOW_ARG_TYPES is nonzero, we output a description of the argument
844 types for a METHOD_TYPE. */
847 dbxout_type (type, full, show_arg_types)
854 /* If there was an input error and we don't really have a type,
855 avoid crashing and write something that is at least valid
856 by assuming `int'. */
857 if (type == error_mark_node)
858 type = integer_type_node;
861 type = TYPE_MAIN_VARIANT (type);
863 && TREE_CODE (TYPE_NAME (type)) == TYPE_DECL
864 && DECL_IGNORED_P (TYPE_NAME (type)))
868 if (TYPE_SYMTAB_ADDRESS (type) == 0)
870 /* Type has no dbx number assigned. Assign next available number. */
871 TYPE_SYMTAB_ADDRESS (type) = next_type_number++;
873 /* Make sure type vector is long enough to record about this type. */
875 if (next_type_number == typevec_len)
877 typevec = (enum typestatus *) xrealloc (typevec, typevec_len * 2 * sizeof typevec[0]);
878 bzero (typevec + typevec_len, typevec_len * sizeof typevec[0]);
883 /* Output the number of this type, to refer to it. */
884 fprintf (asmfile, "%d", TYPE_SYMTAB_ADDRESS (type));
887 #ifdef DBX_TYPE_DEFINED
888 if (DBX_TYPE_DEFINED (type))
892 /* If this type's definition has been output or is now being output,
895 switch (typevec[TYPE_SYMTAB_ADDRESS (type)])
900 /* If we have already had a cross reference,
901 and either that's all we want or that's the best we could do,
902 don't repeat the cross reference.
903 Sun dbx crashes if we do. */
904 if (! full || TYPE_SIZE (type) == 0
905 /* No way in DBX fmt to describe a variable size. */
906 || TREE_CODE (TYPE_SIZE (type)) != INTEGER_CST)
914 /* For systems where dbx output does not allow the `=xsNAME:' syntax,
915 leave the type-number completely undefined rather than output
916 a cross-reference. */
917 if (TREE_CODE (type) == RECORD_TYPE || TREE_CODE (type) == UNION_TYPE
918 || TREE_CODE (type) == ENUMERAL_TYPE)
920 if ((TYPE_NAME (type) != 0 && !full)
921 || TYPE_SIZE (type) == 0)
923 typevec[TYPE_SYMTAB_ADDRESS (type)] = TYPE_XREF;
928 /* Output a definition now. */
930 fprintf (asmfile, "=");
933 /* Mark it as defined, so that if it is self-referent
934 we will not get into an infinite recursion of definitions. */
936 typevec[TYPE_SYMTAB_ADDRESS (type)] = TYPE_DEFINED;
938 switch (TREE_CODE (type))
942 /* For a void type, just define it as itself; ie, "5=5".
943 This makes us consider it defined
944 without saying what it is. The debugger will make it
945 a void type when the reference is seen, and nothing will
946 ever override that default. */
947 fprintf (asmfile, "%d", TYPE_SYMTAB_ADDRESS (type));
952 if (type == char_type_node && ! TREE_UNSIGNED (type))
953 /* Output the type `char' as a subrange of itself!
954 I don't understand this definition, just copied it
955 from the output of pcc.
956 This used to use `r2' explicitly and we used to
957 take care to make sure that `char' was type number 2. */
958 fprintf (asmfile, "r%d;0;127;", TYPE_SYMTAB_ADDRESS (type));
960 else if (TYPE_PRECISION (type) > BITS_PER_WORD)
962 /* This used to say `r1' and we used to take care
963 to make sure that `int' was type number 1. */
964 fprintf (asmfile, "r%d;", TYPE_SYMTAB_ADDRESS (integer_type_node));
965 print_int_cst_octal (TYPE_MIN_VALUE (type));
966 fprintf (asmfile, ";");
967 print_int_cst_octal (TYPE_MAX_VALUE (type));
968 fprintf (asmfile, ";");
972 /* Output other integer types as subranges of `int'. */
973 /* This used to say `r1' and we used to take care
974 to make sure that `int' was type number 1. */
975 fprintf (asmfile, "r%d;%d;%d;",
976 TYPE_SYMTAB_ADDRESS (integer_type_node),
977 TREE_INT_CST_LOW (TYPE_MIN_VALUE (type)),
978 TREE_INT_CST_LOW (TYPE_MAX_VALUE (type)));
983 /* This used to say `r1' and we used to take care
984 to make sure that `int' was type number 1. */
985 fprintf (asmfile, "r%d;%d;0;", TYPE_SYMTAB_ADDRESS (integer_type_node),
986 TREE_INT_CST_LOW (size_in_bytes (type)));
991 /* Output "a" followed by a range type definition
992 for the index type of the array
993 followed by a reference to the target-type.
994 ar1;0;N;M for an array of type M and size N. */
995 /* This used to say `r1' and we used to take care
996 to make sure that `int' was type number 1. */
997 fprintf (asmfile, "ar%d;0;%d;", TYPE_SYMTAB_ADDRESS (integer_type_node),
1000 ? TREE_INT_CST_LOW (TYPE_MAX_VALUE (TYPE_DOMAIN (type)))
1003 dbxout_type (TREE_TYPE (type), 0, 0);
1009 int i, n_baseclasses = 0;
1011 if (TYPE_BINFO (type) != 0 && TYPE_BINFO_BASETYPES (type) != 0)
1012 n_baseclasses = TREE_VEC_LENGTH (TYPE_BINFO_BASETYPES (type));
1014 /* Output a structure type. */
1015 if ((TYPE_NAME (type) != 0
1016 #if 0 /* Tiemann says this creates output tha "confuses GDB".
1017 Too bad the info is so vague. Hope this doesn't lose. */
1018 && ! (TREE_CODE (TYPE_NAME (type)) == TYPE_DECL
1019 && DECL_IGNORED_P (TYPE_NAME (type)))
1022 || TYPE_SIZE (type) == 0
1023 /* No way in DBX fmt to describe a variable size. */
1024 || TREE_CODE (TYPE_SIZE (type)) != INTEGER_CST)
1026 /* If the type is just a cross reference, output one
1027 and mark the type as partially described.
1028 If it later becomes defined, we will output
1029 its real definition.
1030 If the type has a name, don't nest its definition within
1031 another type's definition; instead, output an xref
1032 and let the definition come when the name is defined. */
1033 fprintf (asmfile, (TREE_CODE (type) == RECORD_TYPE) ? "xs" : "xu");
1035 #if 0 /* This assertion is legitimately false in C++. */
1036 /* We shouldn't be outputting a reference to a type before its
1037 definition unless the type has a tag name.
1038 A typedef name without a tag name should be impossible. */
1039 if (TREE_CODE (TYPE_NAME (type)) != IDENTIFIER_NODE)
1042 dbxout_type_name (type);
1043 fprintf (asmfile, ":");
1044 typevec[TYPE_SYMTAB_ADDRESS (type)] = TYPE_XREF;
1047 tem = size_in_bytes (type);
1049 /* Identify record or union, and print its size. */
1050 fprintf (asmfile, (TREE_CODE (type) == RECORD_TYPE) ? "s%d" : "u%d",
1051 TREE_INT_CST_LOW (tem));
1053 if (use_gnu_debug_info_extensions)
1057 have_used_extensions = 1;
1058 fprintf (asmfile, "!%d,", n_baseclasses);
1062 for (i = 0; i < n_baseclasses; i++)
1064 tree child = TREE_VEC_ELT (BINFO_BASETYPES (TYPE_BINFO (type)), i);
1065 if (use_gnu_debug_info_extensions)
1067 have_used_extensions = 1;
1068 putc (TREE_VIA_VIRTUAL (child) ? '1'
1071 putc (TREE_VIA_PUBLIC (child) ? '2'
1074 fprintf (asmfile, "%d,",
1075 TREE_INT_CST_LOW (BINFO_OFFSET (child)) * BITS_PER_UNIT);
1077 dbxout_type (BINFO_TYPE (child), 0, 0);
1078 putc (';', asmfile);
1082 /* Print out the base class information with fields
1083 which have the same names at the types they hold. */
1084 dbxout_type_name (BINFO_TYPE (child));
1085 putc (':', asmfile);
1086 dbxout_type (BINFO_TYPE (child), full, 0);
1087 fprintf (asmfile, ",%d,%d;",
1088 TREE_INT_CST_LOW (BINFO_OFFSET (child)) * BITS_PER_UNIT,
1089 TREE_INT_CST_LOW (DECL_SIZE (TYPE_NAME (BINFO_TYPE (child)))) * BITS_PER_UNIT);
1097 /* Write out the field declarations. */
1098 dbxout_type_fields (type);
1099 if (use_gnu_debug_info_extensions && TYPE_METHODS (type) != NULL_TREE)
1101 have_used_extensions = 1;
1102 dbxout_type_methods (type);
1104 putc (';', asmfile);
1106 if (use_gnu_debug_info_extensions && TREE_CODE (type) == RECORD_TYPE
1107 /* Avoid the ~ if we don't really need it--it confuses dbx. */
1108 && TYPE_VFIELD (type))
1110 have_used_extensions = 1;
1112 /* Tell GDB+ that it may keep reading. */
1113 putc ('~', asmfile);
1115 /* We need to write out info about what field this class
1116 uses as its "main" vtable pointer field, because if this
1117 field is inherited from a base class, GDB cannot necessarily
1118 figure out which field it's using in time. */
1119 if (TYPE_VFIELD (type))
1121 putc ('%', asmfile);
1122 dbxout_type (DECL_FCONTEXT (TYPE_VFIELD (type)), 0, 0);
1124 putc (';', asmfile);
1130 if ((TYPE_NAME (type) != 0 && !full
1131 && (TREE_CODE (TYPE_NAME (type)) == TYPE_DECL
1132 && ! DECL_IGNORED_P (TYPE_NAME (type))))
1133 || TYPE_SIZE (type) == 0)
1135 fprintf (asmfile, "xe");
1137 dbxout_type_name (type);
1138 typevec[TYPE_SYMTAB_ADDRESS (type)] = TYPE_XREF;
1139 fprintf (asmfile, ":");
1142 #ifdef DBX_OUTPUT_ENUM
1143 DBX_OUTPUT_ENUM (asmfile, type);
1145 putc ('e', asmfile);
1147 for (tem = TYPE_VALUES (type); tem; tem = TREE_CHAIN (tem))
1149 fprintf (asmfile, "%s:%d,", IDENTIFIER_POINTER (TREE_PURPOSE (tem)),
1150 TREE_INT_CST_LOW (TREE_VALUE (tem)));
1151 CHARS (11 + IDENTIFIER_LENGTH (TREE_PURPOSE (tem)));
1152 if (TREE_CHAIN (tem) != 0)
1155 putc (';', asmfile);
1161 putc ('*', asmfile);
1163 dbxout_type (TREE_TYPE (type), 0, 0);
1167 if (use_gnu_debug_info_extensions)
1169 have_used_extensions = 1;
1170 putc ('#', asmfile);
1172 if (flag_minimal_debug && !show_arg_types)
1174 /* Normally, just output the return type.
1175 The argument types are encoded in the method name. */
1176 putc ('#', asmfile);
1177 dbxout_type (TREE_TYPE (type), 0, 0);
1178 putc (';', asmfile);
1183 /* When outputting destructors, we need to write
1184 the argument types out longhand. */
1185 dbxout_type (TYPE_METHOD_BASETYPE (type), 0, 0);
1186 putc (',', asmfile);
1188 dbxout_type (TREE_TYPE (type), 0, 0);
1189 dbxout_args (TYPE_ARG_TYPES (type));
1190 putc (';', asmfile);
1196 /* Treat it as a function type. */
1197 dbxout_type (TREE_TYPE (type), 0, 0);
1202 if (use_gnu_debug_info_extensions)
1204 have_used_extensions = 1;
1205 putc ('@', asmfile);
1207 dbxout_type (TYPE_OFFSET_BASETYPE (type), 0, 0);
1208 putc (',', asmfile);
1210 dbxout_type (TREE_TYPE (type), 0, 0);
1214 /* Should print as an int, because it is really
1216 dbxout_type (integer_type_node, 0, 0);
1220 case REFERENCE_TYPE:
1221 if (use_gnu_debug_info_extensions)
1222 have_used_extensions = 1;
1223 putc (use_gnu_debug_info_extensions ? '&' : '*', asmfile);
1225 dbxout_type (TREE_TYPE (type), 0, 0);
1229 putc ('f', asmfile);
1231 dbxout_type (TREE_TYPE (type), 0, 0);
1239 /* Print the value of integer constant C, in octal,
1240 handling double precision. */
1243 print_int_cst_octal (c)
1246 unsigned HOST_WIDE_INT high = TREE_INT_CST_HIGH (c);
1247 unsigned HOST_WIDE_INT low = TREE_INT_CST_LOW (c);
1248 int excess = (3 - (HOST_BITS_PER_WIDE_INT % 3));
1250 fprintf (asmfile, "0");
1254 print_octal (high, HOST_BITS_PER_WIDE_INT / 3);
1255 print_octal (low, HOST_BITS_PER_WIDE_INT / 3);
1259 unsigned HOST_WIDE_INT beg = high >> excess;
1260 unsigned HOST_WIDE_INT middle
1261 = ((high & (((HOST_WIDE_INT) 1 << excess) - 1)) << (3 - excess)
1262 | (low >> (HOST_BITS_PER_WIDE_INT / 3 * 3)));
1263 unsigned HOST_WIDE_INT end
1264 = low & (((HOST_WIDE_INT) 1 << (HOST_BITS_PER_WIDE_INT / 3 * 3)) - 1);
1265 fprintf (asmfile, "%o%01o", beg, middle);
1266 print_octal (end, HOST_BITS_PER_WIDE_INT / 3);
1271 print_octal (value, digits)
1272 unsigned HOST_WIDE_INT value;
1277 for (i = digits - 1; i >= 0; i--)
1278 fprintf (asmfile, "%01o", ((value >> (3 * i)) & 7));
1281 /* Output the name of type TYPE, with no punctuation.
1282 Such names can be set up either by typedef declarations
1283 or by struct, enum and union tags. */
1286 dbxout_type_name (type)
1290 if (TYPE_NAME (type) == 0)
1292 if (TREE_CODE (TYPE_NAME (type)) == IDENTIFIER_NODE)
1294 t = TYPE_NAME (type);
1296 else if (TREE_CODE (TYPE_NAME (type)) == TYPE_DECL)
1298 t = DECL_NAME (TYPE_NAME (type));
1303 fprintf (asmfile, "%s", IDENTIFIER_POINTER (t));
1304 CHARS (IDENTIFIER_LENGTH (t));
1307 /* Output a .stabs for the symbol defined by DECL,
1308 which must be a ..._DECL node in the normal namespace.
1309 It may be a CONST_DECL, a FUNCTION_DECL, a PARM_DECL or a VAR_DECL.
1310 LOCAL is nonzero if the scope is less than the entire file. */
1313 dbxout_symbol (decl, local)
1318 tree type = TREE_TYPE (decl);
1319 tree context = NULL_TREE;
1322 /* Cast avoids warning in old compilers. */
1323 current_sym_code = (STAB_CODE_TYPE) 0;
1324 current_sym_value = 0;
1325 current_sym_addr = 0;
1327 /* Ignore nameless syms, but don't ignore type tags. */
1329 if ((DECL_NAME (decl) == 0 && TREE_CODE (decl) != TYPE_DECL)
1330 || DECL_IGNORED_P (decl))
1333 dbxout_prepare_symbol (decl);
1335 /* The output will always start with the symbol name,
1336 so always count that in the length-output-so-far. */
1338 if (DECL_NAME (decl) != 0)
1339 current_sym_nchars = 2 + IDENTIFIER_LENGTH (DECL_NAME (decl));
1341 switch (TREE_CODE (decl))
1344 /* Enum values are defined by defining the enum type. */
1348 if (DECL_RTL (decl) == 0)
1350 if (DECL_EXTERNAL (decl))
1352 /* Don't mention a nested function under its parent. */
1353 context = decl_function_context (decl);
1354 if (context == current_function_decl)
1356 if (GET_CODE (DECL_RTL (decl)) != MEM
1357 || GET_CODE (XEXP (DECL_RTL (decl), 0)) != SYMBOL_REF)
1361 fprintf (asmfile, "%s \"%s:%c", ASM_STABS_OP,
1362 IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl)),
1363 TREE_PUBLIC (decl) ? 'F' : 'f');
1365 current_sym_code = N_FUN;
1366 current_sym_addr = XEXP (DECL_RTL (decl), 0);
1368 if (TREE_TYPE (type))
1369 dbxout_type (TREE_TYPE (type), 0, 0);
1371 dbxout_type (void_type_node, 0, 0);
1373 /* For a nested function, when that function is compiled,
1374 mention the containing function name
1375 as well as (since dbx wants it) our own assembler-name. */
1377 fprintf (asmfile, ",%s,%s",
1378 IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl)),
1379 IDENTIFIER_POINTER (DECL_NAME (context)));
1381 dbxout_finish_symbol (decl);
1386 /* This seems all wrong. Outputting most kinds of types gives no name
1387 at all. A true definition gives no name; a cross-ref for a
1388 structure can give the tag name, but not a type name.
1389 It seems that no typedef name is defined by outputting a type. */
1391 /* If this typedef name was defined by outputting the type,
1392 don't duplicate it. */
1393 if (typevec[TYPE_SYMTAB_ADDRESS (type)] == TYPE_DEFINED
1394 && TYPE_NAME (TREE_TYPE (decl)) == decl)
1397 /* Don't output the same typedef twice.
1398 And don't output what language-specific stuff doesn't want output. */
1399 if (TREE_ASM_WRITTEN (decl) || DECL_IGNORED_P (decl))
1407 if (DECL_NAME (decl))
1409 /* Nonzero means we must output a tag as well as a typedef. */
1412 /* Handle the case of a C++ structure or union
1413 where the TYPE_NAME is a TYPE_DECL
1414 which gives both a typedef name and a tag. */
1415 /* dbx requires the tag first and the typedef second.
1416 ??? there is a bug here. It generates spurious tags
1418 if ((TREE_CODE (type) == RECORD_TYPE
1419 || TREE_CODE (type) == UNION_TYPE)
1420 && TYPE_NAME (type) == decl
1421 && !(use_gnu_debug_info_extensions && have_used_extensions)
1422 && !TREE_ASM_WRITTEN (TYPE_NAME (type)))
1424 tree name = TYPE_NAME (type);
1425 if (TREE_CODE (name) == TYPE_DECL)
1426 name = DECL_NAME (name);
1428 current_sym_code = DBX_TYPE_DECL_STABS_CODE;
1429 current_sym_value = 0;
1430 current_sym_addr = 0;
1431 current_sym_nchars = 2 + IDENTIFIER_LENGTH (name);
1433 fprintf (asmfile, "%s \"%s:T", ASM_STABS_OP,
1434 IDENTIFIER_POINTER (name));
1435 dbxout_type (type, 1, 0);
1436 dbxout_finish_symbol (NULL_TREE);
1439 /* Output typedef name. */
1440 fprintf (asmfile, "%s \"%s:", ASM_STABS_OP,
1441 IDENTIFIER_POINTER (DECL_NAME (decl)));
1443 /* Short cut way to output a tag also. */
1444 if ((TREE_CODE (type) == RECORD_TYPE
1445 || TREE_CODE (type) == UNION_TYPE)
1446 && TYPE_NAME (type) == decl)
1448 if (use_gnu_debug_info_extensions && have_used_extensions)
1450 putc ('T', asmfile);
1451 TREE_ASM_WRITTEN (TYPE_NAME (type)) = 1;
1453 #if 0 /* Now we generate the tag for this case up above. */
1459 putc ('t', asmfile);
1460 current_sym_code = DBX_TYPE_DECL_STABS_CODE;
1462 dbxout_type (type, 1, 0);
1463 dbxout_finish_symbol (decl);
1466 if (tag_needed && TYPE_NAME (type) != 0
1467 && !TREE_ASM_WRITTEN (TYPE_NAME (type)))
1469 /* For a TYPE_DECL with no name, but the type has a name,
1471 This is what represents `struct foo' with no typedef. */
1472 /* In C++, the name of a type is the corresponding typedef.
1473 In C, it is an IDENTIFIER_NODE. */
1474 tree name = TYPE_NAME (type);
1475 if (TREE_CODE (name) == TYPE_DECL)
1476 name = DECL_NAME (name);
1478 current_sym_code = DBX_TYPE_DECL_STABS_CODE;
1479 current_sym_value = 0;
1480 current_sym_addr = 0;
1481 current_sym_nchars = 2 + IDENTIFIER_LENGTH (name);
1483 fprintf (asmfile, "%s \"%s:T", ASM_STABS_OP,
1484 IDENTIFIER_POINTER (name));
1485 dbxout_type (type, 1, 0);
1486 dbxout_finish_symbol (NULL_TREE);
1489 /* Prevent duplicate output of a typedef. */
1490 TREE_ASM_WRITTEN (decl) = 1;
1495 /* Parm decls go in their own separate chains
1496 and are output by dbxout_reg_parms and dbxout_parms. */
1500 /* Named return value, treat like a VAR_DECL. */
1502 if (DECL_RTL (decl) == 0)
1504 /* Don't mention a variable that is external.
1505 Let the file that defines it describe it. */
1506 if (DECL_EXTERNAL (decl))
1509 /* If the variable is really a constant
1510 and not written in memory, inform the debugger. */
1511 if (TREE_STATIC (decl) && TREE_READONLY (decl)
1512 && DECL_INITIAL (decl) != 0
1513 && ! TREE_ASM_WRITTEN (decl)
1514 && (DECL_FIELD_CONTEXT (decl) == NULL_TREE
1515 || TREE_CODE (DECL_FIELD_CONTEXT (decl)) == BLOCK))
1517 if (TREE_PUBLIC (decl) == 0)
1519 /* The sun4 assembler does not grok this. */
1520 char *name = IDENTIFIER_POINTER (DECL_NAME (decl));
1521 if (TREE_CODE (TREE_TYPE (decl)) == INTEGER_TYPE
1522 || TREE_CODE (TREE_TYPE (decl)) == ENUMERAL_TYPE)
1524 HOST_WIDE_INT ival = TREE_INT_CST_LOW (DECL_INITIAL (decl));
1525 #ifdef DBX_OUTPUT_CONSTANT_SYMBOL
1526 DBX_OUTPUT_CONSTANT_SYMBOL (asmfile, name, ival);
1528 fprintf (asmfile, "%s \"%s:c=i%d\",0x%x,0,0,0\n",
1529 ASM_STABS_OP, name, ival, N_LSYM);
1533 else if (TREE_CODE (TREE_TYPE (decl)) == REAL_TYPE)
1535 /* don't know how to do this yet. */
1539 /* else it is something we handle like a normal variable. */
1542 DECL_RTL (decl) = eliminate_regs (DECL_RTL (decl), 0, 0);
1543 #ifdef LEAF_REG_REMAP
1545 leaf_renumber_regs_insn (DECL_RTL (decl));
1548 /* Don't mention a variable at all
1549 if it was completely optimized into nothingness.
1551 If DECL was from an inline function, then it's rtl
1552 is not identically the rtl that was used in this
1553 particular compilation. */
1554 if (GET_CODE (DECL_RTL (decl)) == REG)
1556 regno = REGNO (DECL_RTL (decl));
1557 if (regno >= FIRST_PSEUDO_REGISTER)
1560 else if (GET_CODE (DECL_RTL (decl)) == SUBREG)
1562 rtx value = DECL_RTL (decl);
1564 while (GET_CODE (value) == SUBREG)
1566 offset += SUBREG_WORD (value);
1567 value = SUBREG_REG (value);
1569 if (GET_CODE (value) == REG)
1571 regno = REGNO (value);
1572 if (regno >= FIRST_PSEUDO_REGISTER)
1576 alter_subreg (DECL_RTL (decl));
1579 /* The kind-of-variable letter depends on where
1580 the variable is and on the scope of its name:
1581 G and N_GSYM for static storage and global scope,
1582 S for static storage and file scope,
1583 V for static storage and local scope,
1584 for those two, use N_LCSYM if data is in bss segment,
1585 N_STSYM if in data segment, N_FUN otherwise.
1586 (We used N_FUN originally, then changed to N_STSYM
1587 to please GDB. However, it seems that confused ld.
1588 Now GDB has been fixed to like N_FUN, says Kingdon.)
1589 no letter at all, and N_LSYM, for auto variable,
1590 r and N_RSYM for register variable. */
1592 if (GET_CODE (DECL_RTL (decl)) == MEM
1593 && GET_CODE (XEXP (DECL_RTL (decl), 0)) == SYMBOL_REF)
1595 if (TREE_PUBLIC (decl))
1598 current_sym_code = N_GSYM;
1602 current_sym_addr = XEXP (DECL_RTL (decl), 0);
1604 letter = decl_function_context (decl) ? 'V' : 'S';
1606 if (!DECL_INITIAL (decl))
1607 current_sym_code = N_LCSYM;
1608 else if (TREE_READONLY (decl) && ! TREE_THIS_VOLATILE (decl))
1609 /* This is not quite right, but it's the closest
1610 of all the codes that Unix defines. */
1611 current_sym_code = DBX_STATIC_CONST_VAR_CODE;
1614 /* Ultrix `as' seems to need this. */
1615 #ifdef DBX_STATIC_STAB_DATA_SECTION
1618 current_sym_code = N_STSYM;
1622 else if (regno >= 0)
1625 current_sym_code = N_RSYM;
1626 current_sym_value = DBX_REGISTER_NUMBER (regno);
1628 else if (GET_CODE (DECL_RTL (decl)) == MEM
1629 && (GET_CODE (XEXP (DECL_RTL (decl), 0)) == MEM
1630 || (GET_CODE (XEXP (DECL_RTL (decl), 0)) == REG
1631 && REGNO (XEXP (DECL_RTL (decl), 0)) != FRAME_POINTER_REGNUM)))
1632 /* If the value is indirect by memory or by a register
1633 that isn't the frame pointer
1634 then it means the object is variable-sized and address through
1635 that register or stack slot. DBX has no way to represent this
1636 so all we can do is output the variable as a pointer.
1637 If it's not a parameter, ignore it.
1638 (VAR_DECLs like this can be made by integrate.c.) */
1640 if (GET_CODE (XEXP (DECL_RTL (decl), 0)) == REG)
1643 current_sym_code = N_RSYM;
1644 current_sym_value = DBX_REGISTER_NUMBER (REGNO (XEXP (DECL_RTL (decl), 0)));
1648 current_sym_code = N_LSYM;
1649 /* DECL_RTL looks like (MEM (MEM (PLUS (REG...) (CONST_INT...)))).
1650 We want the value of that CONST_INT. */
1652 = DEBUGGER_AUTO_OFFSET (XEXP (XEXP (DECL_RTL (decl), 0), 0));
1655 /* Effectively do build_pointer_type, but don't cache this type,
1656 since it might be temporary whereas the type it points to
1657 might have been saved for inlining. */
1658 /* Don't use REFERENCE_TYPE because dbx can't handle that. */
1659 type = make_node (POINTER_TYPE);
1660 TREE_TYPE (type) = TREE_TYPE (decl);
1662 else if (GET_CODE (DECL_RTL (decl)) == MEM
1663 && GET_CODE (XEXP (DECL_RTL (decl), 0)) == REG)
1665 current_sym_code = N_LSYM;
1666 current_sym_value = DEBUGGER_AUTO_OFFSET (XEXP (DECL_RTL (decl), 0));
1668 else if (GET_CODE (DECL_RTL (decl)) == MEM
1669 && GET_CODE (XEXP (DECL_RTL (decl), 0)) == PLUS
1670 && GET_CODE (XEXP (XEXP (DECL_RTL (decl), 0), 1)) == CONST_INT)
1672 current_sym_code = N_LSYM;
1673 /* DECL_RTL looks like (MEM (PLUS (REG...) (CONST_INT...)))
1674 We want the value of that CONST_INT. */
1675 current_sym_value = DEBUGGER_AUTO_OFFSET (XEXP (DECL_RTL (decl), 0));
1677 else if (GET_CODE (DECL_RTL (decl)) == MEM
1678 && GET_CODE (XEXP (DECL_RTL (decl), 0)) == CONST)
1680 /* Handle an obscure case which can arise when optimizing and
1681 when there are few available registers. (This is *always*
1682 the case for i386/i486 targets). The DECL_RTL looks like
1683 (MEM (CONST ...)) even though this variable is a local `auto'
1684 or a local `register' variable. In effect, what has happened
1685 is that the reload pass has seen that all assignments and
1686 references for one such a local variable can be replaced by
1687 equivalent assignments and references to some static storage
1688 variable, thereby avoiding the need for a register. In such
1689 cases we're forced to lie to debuggers and tell them that
1690 this variable was itself `static'. */
1691 current_sym_code = N_LCSYM;
1693 current_sym_addr = XEXP (XEXP (DECL_RTL (decl), 0), 0);
1696 /* Address might be a MEM, when DECL is a variable-sized object.
1697 Or it might be const0_rtx, meaning previous passes
1698 want us to ignore this variable. */
1701 /* Ok, start a symtab entry and output the variable name. */
1704 #ifdef DBX_STATIC_BLOCK_START
1705 DBX_STATIC_BLOCK_START (asmfile, current_sym_code);
1708 /* One slight hitch: if this is a VAR_DECL which is a static
1709 class member, we must put out the mangled name instead of the
1713 /* Note also that static member (variable) names DO NOT begin
1714 with underscores in .stabs directives. */
1715 if (DECL_LANG_SPECIFIC (decl))
1716 name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl));
1718 name = IDENTIFIER_POINTER (DECL_NAME (decl));
1719 fprintf (asmfile, "%s \"%s:", ASM_STABS_OP, name);
1721 if (letter) putc (letter, asmfile);
1722 dbxout_type (type, 0, 0);
1723 dbxout_finish_symbol (decl);
1725 #ifdef DBX_STATIC_BLOCK_END
1726 DBX_STATIC_BLOCK_END (asmfile, current_sym_code);
1733 dbxout_prepare_symbol (decl)
1737 char *filename = DECL_SOURCE_FILE (decl);
1739 dbxout_source_file (asmfile, filename);
1744 dbxout_finish_symbol (sym)
1747 #ifdef DBX_FINISH_SYMBOL
1748 DBX_FINISH_SYMBOL (sym);
1753 line = DECL_SOURCE_LINE (sym);
1756 fprintf (asmfile, "\",%d,0,%d,", current_sym_code, line);
1757 if (current_sym_addr)
1758 output_addr_const (asmfile, current_sym_addr);
1760 fprintf (asmfile, "%d", current_sym_value);
1761 putc ('\n', asmfile);
1765 /* Output definitions of all the decls in a chain. */
1773 dbxout_symbol (syms, 1);
1774 syms = TREE_CHAIN (syms);
1778 /* The following two functions output definitions of function parameters.
1779 Each parameter gets a definition locating it in the parameter list.
1780 Each parameter that is a register variable gets a second definition
1781 locating it in the register.
1783 Printing or argument lists in gdb uses the definitions that
1784 locate in the parameter list. But reference to the variable in
1785 expressions uses preferentially the definition as a register. */
1787 /* Output definitions, referring to storage in the parmlist,
1788 of all the parms in PARMS, which is a chain of PARM_DECL nodes. */
1791 dbxout_parms (parms)
1794 for (; parms; parms = TREE_CHAIN (parms))
1795 if (DECL_NAME (parms) && TREE_TYPE (parms) != error_mark_node)
1797 dbxout_prepare_symbol (parms);
1799 /* Perform any necessary register eliminations on the parameter's rtl,
1800 so that the debugging output will be accurate. */
1801 DECL_INCOMING_RTL (parms)
1802 = eliminate_regs (DECL_INCOMING_RTL (parms), 0, NULL_RTX);
1803 DECL_RTL (parms) = eliminate_regs (DECL_RTL (parms), 0, NULL_RTX);
1804 #ifdef LEAF_REG_REMAP
1807 leaf_renumber_regs_insn (DECL_INCOMING_RTL (parms));
1808 leaf_renumber_regs_insn (DECL_RTL (parms));
1812 if (PARM_PASSED_IN_MEMORY (parms))
1814 rtx addr = XEXP (DECL_INCOMING_RTL (parms), 0);
1816 /* ??? Here we assume that the parm address is indexed
1817 off the frame pointer or arg pointer.
1818 If that is not true, we produce meaningless results,
1819 but do not crash. */
1820 if (GET_CODE (addr) == PLUS
1821 && GET_CODE (XEXP (addr, 1)) == CONST_INT)
1822 current_sym_value = INTVAL (XEXP (addr, 1));
1824 current_sym_value = 0;
1826 current_sym_code = N_PSYM;
1827 current_sym_addr = 0;
1830 if (DECL_NAME (parms))
1832 current_sym_nchars = 2 + IDENTIFIER_LENGTH (DECL_NAME (parms));
1834 fprintf (asmfile, "%s \"%s:%c", ASM_STABS_OP,
1835 IDENTIFIER_POINTER (DECL_NAME (parms)),
1836 DBX_MEMPARM_STABS_LETTER);
1840 current_sym_nchars = 8;
1841 fprintf (asmfile, "%s \"(anon):%c", ASM_STABS_OP,
1842 DBX_MEMPARM_STABS_LETTER);
1845 if (GET_CODE (DECL_RTL (parms)) == REG
1846 && REGNO (DECL_RTL (parms)) >= 0
1847 && REGNO (DECL_RTL (parms)) < FIRST_PSEUDO_REGISTER)
1848 dbxout_type (DECL_ARG_TYPE (parms), 0, 0);
1851 int original_value = current_sym_value;
1853 /* This is the case where the parm is passed as an int or double
1854 and it is converted to a char, short or float and stored back
1855 in the parmlist. In this case, describe the parm
1856 with the variable's declared type, and adjust the address
1857 if the least significant bytes (which we are using) are not
1859 #if BYTES_BIG_ENDIAN
1860 if (TREE_TYPE (parms) != DECL_ARG_TYPE (parms))
1861 current_sym_value += (GET_MODE_SIZE (TYPE_MODE (DECL_ARG_TYPE (parms)))
1862 - GET_MODE_SIZE (GET_MODE (DECL_RTL (parms))));
1865 if (GET_CODE (DECL_RTL (parms)) == MEM
1866 && GET_CODE (XEXP (DECL_RTL (parms), 0)) == PLUS
1867 && GET_CODE (XEXP (XEXP (DECL_RTL (parms), 0), 1)) == CONST_INT
1868 && INTVAL (XEXP (XEXP (DECL_RTL (parms), 0), 1)) == current_sym_value)
1869 dbxout_type (TREE_TYPE (parms), 0, 0);
1872 current_sym_value = original_value;
1873 dbxout_type (DECL_ARG_TYPE (parms), 0, 0);
1876 current_sym_value = DEBUGGER_ARG_OFFSET (current_sym_value, addr);
1877 dbxout_finish_symbol (parms);
1879 else if (GET_CODE (DECL_RTL (parms)) == REG)
1882 char regparm_letter;
1883 /* Parm passed in registers and lives in registers or nowhere. */
1885 current_sym_code = DBX_REGPARM_STABS_CODE;
1886 regparm_letter = DBX_REGPARM_STABS_LETTER;
1887 current_sym_addr = 0;
1889 /* If parm lives in a register, use that register;
1890 pretend the parm was passed there. It would be more consistent
1891 to describe the register where the parm was passed,
1892 but in practice that register usually holds something else. */
1893 if (REGNO (DECL_RTL (parms)) >= 0
1894 && REGNO (DECL_RTL (parms)) < FIRST_PSEUDO_REGISTER)
1895 best_rtl = DECL_RTL (parms);
1896 /* If the parm lives nowhere,
1897 use the register where it was passed. */
1899 best_rtl = DECL_INCOMING_RTL (parms);
1900 current_sym_value = DBX_REGISTER_NUMBER (REGNO (best_rtl));
1903 if (DECL_NAME (parms))
1905 current_sym_nchars = 2 + IDENTIFIER_LENGTH (DECL_NAME (parms));
1906 fprintf (asmfile, "%s \"%s:%c", ASM_STABS_OP,
1907 IDENTIFIER_POINTER (DECL_NAME (parms)),
1912 current_sym_nchars = 8;
1913 fprintf (asmfile, "%s \"(anon):%c", ASM_STABS_OP,
1917 dbxout_type (DECL_ARG_TYPE (parms), 0, 0);
1918 dbxout_finish_symbol (parms);
1920 else if (GET_CODE (DECL_RTL (parms)) == MEM
1921 && GET_CODE (XEXP (DECL_RTL (parms), 0)) == REG
1922 && rtx_equal_p (XEXP (DECL_RTL (parms), 0),
1923 DECL_INCOMING_RTL (parms)))
1925 /* Parm was passed via invisible reference.
1926 That is, its address was passed in a register.
1927 Output it as if it lived in that register.
1928 The debugger will know from the type
1929 that it was actually passed by invisible reference. */
1931 char regparm_letter;
1932 /* Parm passed in registers and lives in registers or nowhere. */
1934 current_sym_code = DBX_REGPARM_STABS_CODE;
1935 regparm_letter = DBX_REGPARM_STABS_LETTER;
1937 /* DECL_RTL looks like (MEM (REG...). Get the register number. */
1938 current_sym_value = REGNO (XEXP (DECL_RTL (parms), 0));
1939 current_sym_addr = 0;
1942 if (DECL_NAME (parms))
1944 current_sym_nchars = 2 + strlen (IDENTIFIER_POINTER (DECL_NAME (parms)));
1946 fprintf (asmfile, "%s \"%s:%c", ASM_STABS_OP,
1947 IDENTIFIER_POINTER (DECL_NAME (parms)),
1948 DBX_REGPARM_STABS_LETTER);
1952 current_sym_nchars = 8;
1953 fprintf (asmfile, "%s \"(anon):%c", ASM_STABS_OP,
1954 DBX_REGPARM_STABS_LETTER);
1957 dbxout_type (TREE_TYPE (parms), 0, 0);
1958 dbxout_finish_symbol (parms);
1960 else if (GET_CODE (DECL_RTL (parms)) == MEM
1961 && XEXP (DECL_RTL (parms), 0) != const0_rtx)
1963 /* Parm was passed in registers but lives on the stack. */
1965 current_sym_code = N_PSYM;
1966 /* DECL_RTL looks like (MEM (PLUS (REG...) (CONST_INT...))),
1967 in which case we want the value of that CONST_INT,
1968 or (MEM (REG ...)) or (MEM (MEM ...)),
1969 in which case we use a value of zero. */
1970 if (GET_CODE (XEXP (DECL_RTL (parms), 0)) == REG
1971 || GET_CODE (XEXP (DECL_RTL (parms), 0)) == MEM)
1972 current_sym_value = 0;
1974 current_sym_value = INTVAL (XEXP (XEXP (DECL_RTL (parms), 0), 1));
1975 current_sym_addr = 0;
1978 if (DECL_NAME (parms))
1980 current_sym_nchars = 2 + strlen (IDENTIFIER_POINTER (DECL_NAME (parms)));
1982 fprintf (asmfile, "%s \"%s:%c", ASM_STABS_OP,
1983 IDENTIFIER_POINTER (DECL_NAME (parms)),
1984 DBX_MEMPARM_STABS_LETTER);
1988 current_sym_nchars = 8;
1989 fprintf (asmfile, "%s \"(anon):%c", ASM_STABS_OP,
1990 DBX_MEMPARM_STABS_LETTER);
1994 = DEBUGGER_ARG_OFFSET (current_sym_value,
1995 XEXP (DECL_RTL (parms), 0));
1996 dbxout_type (TREE_TYPE (parms), 0, 0);
1997 dbxout_finish_symbol (parms);
2002 /* Output definitions for the places where parms live during the function,
2003 when different from where they were passed, when the parms were passed
2006 It is not useful to do this for parms passed in registers
2007 that live during the function in different registers, because it is
2008 impossible to look in the passed register for the passed value,
2009 so we use the within-the-function register to begin with.
2011 PARMS is a chain of PARM_DECL nodes. */
2014 dbxout_reg_parms (parms)
2017 for (; parms; parms = TREE_CHAIN (parms))
2018 if (DECL_NAME (parms))
2020 dbxout_prepare_symbol (parms);
2022 /* Report parms that live in registers during the function
2023 but were passed in memory. */
2024 if (GET_CODE (DECL_RTL (parms)) == REG
2025 && REGNO (DECL_RTL (parms)) >= 0
2026 && REGNO (DECL_RTL (parms)) < FIRST_PSEUDO_REGISTER
2027 && PARM_PASSED_IN_MEMORY (parms))
2029 current_sym_code = N_RSYM;
2030 current_sym_value = DBX_REGISTER_NUMBER (REGNO (DECL_RTL (parms)));
2031 current_sym_addr = 0;
2034 if (DECL_NAME (parms))
2036 current_sym_nchars = 2 + IDENTIFIER_LENGTH (DECL_NAME (parms));
2037 fprintf (asmfile, "%s \"%s:r", ASM_STABS_OP,
2038 IDENTIFIER_POINTER (DECL_NAME (parms)));
2042 current_sym_nchars = 8;
2043 fprintf (asmfile, "%s \"(anon):r", ASM_STABS_OP);
2045 dbxout_type (TREE_TYPE (parms), 0, 0);
2046 dbxout_finish_symbol (parms);
2048 /* Report parms that live in memory but not where they were passed. */
2049 else if (GET_CODE (DECL_RTL (parms)) == MEM
2050 && GET_CODE (XEXP (DECL_RTL (parms), 0)) == PLUS
2051 && GET_CODE (XEXP (XEXP (DECL_RTL (parms), 0), 1)) == CONST_INT
2052 && PARM_PASSED_IN_MEMORY (parms)
2053 && ! rtx_equal_p (DECL_RTL (parms), DECL_INCOMING_RTL (parms)))
2055 #if 0 /* ??? It is not clear yet what should replace this. */
2056 int offset = DECL_OFFSET (parms) / BITS_PER_UNIT;
2057 /* A parm declared char is really passed as an int,
2058 so it occupies the least significant bytes.
2059 On a big-endian machine those are not the low-numbered ones. */
2060 #if BYTES_BIG_ENDIAN
2061 if (offset != -1 && TREE_TYPE (parms) != DECL_ARG_TYPE (parms))
2062 offset += (GET_MODE_SIZE (TYPE_MODE (DECL_ARG_TYPE (parms)))
2063 - GET_MODE_SIZE (GET_MODE (DECL_RTL (parms))));
2065 if (INTVAL (XEXP (XEXP (DECL_RTL (parms), 0), 1)) != offset) {...}
2067 current_sym_code = N_LSYM;
2068 current_sym_value = DEBUGGER_AUTO_OFFSET (XEXP (DECL_RTL (parms), 0));
2069 current_sym_addr = 0;
2071 if (DECL_NAME (parms))
2073 current_sym_nchars = 2 + IDENTIFIER_LENGTH (DECL_NAME (parms));
2074 fprintf (asmfile, "%s \"%s:", ASM_STABS_OP,
2075 IDENTIFIER_POINTER (DECL_NAME (parms)));
2079 current_sym_nchars = 8;
2080 fprintf (asmfile, "%s \"(anon):", ASM_STABS_OP);
2082 dbxout_type (TREE_TYPE (parms), 0, 0);
2083 dbxout_finish_symbol (parms);
2088 /* Given a chain of ..._TYPE nodes (as come in a parameter list),
2089 output definitions of those names, in raw form */
2097 putc (',', asmfile);
2098 dbxout_type (TREE_VALUE (args), 0, 0);
2100 args = TREE_CHAIN (args);
2104 /* Given a chain of ..._TYPE nodes,
2105 find those which have typedef names and output those names.
2106 This is to ensure those types get output. */
2109 dbxout_types (types)
2110 register tree types;
2114 if (TYPE_NAME (types)
2115 && TREE_CODE (TYPE_NAME (types)) == TYPE_DECL
2116 && ! TREE_ASM_WRITTEN (TYPE_NAME (types)))
2117 dbxout_symbol (TYPE_NAME (types), 1);
2118 types = TREE_CHAIN (types);
2122 /* Output everything about a symbol block (a BLOCK node
2123 that represents a scope level),
2124 including recursive output of contained blocks.
2126 BLOCK is the BLOCK node.
2127 DEPTH is its depth within containing symbol blocks.
2128 ARGS is usually zero; but for the outermost block of the
2129 body of a function, it is a chain of PARM_DECLs for the function parameters.
2130 We output definitions of all the register parms
2131 as if they were local variables of that block.
2133 If -g1 was used, we count blocks just the same, but output nothing
2134 except for the outermost block.
2136 Actually, BLOCK may be several blocks chained together.
2137 We handle them all in sequence. */
2140 dbxout_block (block, depth, args)
2141 register tree block;
2149 /* Ignore blocks never expanded or otherwise marked as real. */
2150 if (TREE_USED (block))
2152 #ifndef DBX_LBRAC_FIRST
2153 /* In dbx format, the syms of a block come before the N_LBRAC. */
2154 if (debug_info_level != DINFO_LEVEL_TERSE || depth == 0)
2155 dbxout_syms (BLOCK_VARS (block));
2157 dbxout_reg_parms (args);
2160 /* Now output an N_LBRAC symbol to represent the beginning of
2161 the block. Use the block's tree-walk order to generate
2162 the assembler symbols LBBn and LBEn
2163 that final will define around the code in this block. */
2164 if (depth > 0 && debug_info_level != DINFO_LEVEL_TERSE)
2167 blocknum = next_block_number++;
2168 ASM_GENERATE_INTERNAL_LABEL (buf, "LBB", blocknum);
2170 if (BLOCK_HANDLER_BLOCK (block))
2172 /* A catch block. Must precede N_LBRAC. */
2173 tree decl = BLOCK_VARS (block);
2176 #ifdef DBX_OUTPUT_CATCH
2177 DBX_OUTPUT_CATCH (asmfile, decl, buf);
2179 fprintf (asmfile, "%s \"%s:C1\",%d,0,0,", ASM_STABS_OP,
2180 IDENTIFIER_POINTER (DECL_NAME (decl)), N_CATCH);
2181 assemble_name (asmfile, buf);
2182 fprintf (asmfile, "\n");
2184 decl = TREE_CHAIN (decl);
2188 #ifdef DBX_OUTPUT_LBRAC
2189 DBX_OUTPUT_LBRAC (asmfile, buf);
2191 fprintf (asmfile, "%s %d,0,0,", ASM_STABN_OP, N_LBRAC);
2192 assemble_name (asmfile, buf);
2193 #if DBX_BLOCKS_FUNCTION_RELATIVE
2194 fputc ('-', asmfile);
2195 assemble_name (asmfile, IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (current_function_decl)));
2197 fprintf (asmfile, "\n");
2201 /* Count blocks the same way regardless of debug_info_level. */
2202 next_block_number++;
2204 #ifdef DBX_LBRAC_FIRST
2205 /* On some weird machines, the syms of a block
2206 come after the N_LBRAC. */
2207 if (debug_info_level != DINFO_LEVEL_TERSE || depth == 0)
2208 dbxout_syms (BLOCK_VARS (block));
2210 dbxout_reg_parms (args);
2213 /* Output the subblocks. */
2214 dbxout_block (BLOCK_SUBBLOCKS (block), depth + 1, NULL_TREE);
2216 /* Refer to the marker for the end of the block. */
2217 if (depth > 0 && debug_info_level != DINFO_LEVEL_TERSE)
2220 ASM_GENERATE_INTERNAL_LABEL (buf, "LBE", blocknum);
2221 #ifdef DBX_OUTPUT_RBRAC
2222 DBX_OUTPUT_RBRAC (asmfile, buf);
2224 fprintf (asmfile, "%s %d,0,0,", ASM_STABN_OP, N_RBRAC);
2225 assemble_name (asmfile, buf);
2226 #if DBX_BLOCKS_FUNCTION_RELATIVE
2227 fputc ('-', asmfile);
2228 assemble_name (asmfile, IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (current_function_decl)));
2230 fprintf (asmfile, "\n");
2234 block = BLOCK_CHAIN (block);
2238 /* Output the information about a function and its arguments and result.
2239 Usually this follows the function's code,
2240 but on some systems, it comes before. */
2243 dbxout_really_begin_function (decl)
2246 dbxout_symbol (decl, 0);
2247 dbxout_parms (DECL_ARGUMENTS (decl));
2248 if (DECL_NAME (DECL_RESULT (decl)) != 0)
2249 dbxout_symbol (DECL_RESULT (decl), 1);
2252 /* Called at beginning of output of function definition. */
2255 dbxout_begin_function (decl)
2258 #ifdef DBX_FUNCTION_FIRST
2259 dbxout_really_begin_function (decl);
2263 /* Output dbx data for a function definition.
2264 This includes a definition of the function name itself (a symbol),
2265 definitions of the parameters (locating them in the parameter list)
2266 and then output the block that makes up the function's body
2267 (including all the auto variables of the function). */
2270 dbxout_function (decl)
2273 #ifndef DBX_FUNCTION_FIRST
2274 dbxout_really_begin_function (decl);
2276 dbxout_block (DECL_INITIAL (decl), 0, DECL_ARGUMENTS (decl));
2277 #ifdef DBX_OUTPUT_FUNCTION_END
2278 DBX_OUTPUT_FUNCTION_END (asmfile, decl);
2281 #endif /* DBX_DEBUGGING_INFO */