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00fe048c RS |
1 | /* Output dbx-format symbol table information from GNU compiler. |
2 | Copyright (C) 1987, 1988, 1992 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of GNU CC. | |
5 | ||
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) | |
9 | any later version. | |
10 | ||
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. | |
15 | ||
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. */ | |
19 | ||
20 | ||
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. | |
29 | ||
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. | |
34 | ||
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. | |
41 | ||
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 | |
46 | end of its "name". | |
47 | ||
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. | |
51 | See `dbxout_symbol'. | |
52 | ||
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. | |
57 | ||
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. | |
63 | ||
64 | If DEBUG_SYMS_TEXT is defined, all debugging symbols must be | |
65 | output while in the text section. | |
66 | ||
67 | For more on data type definitions, see `dbxout_type'. */ | |
68 | ||
69 | /* Include these first, because they may define MIN and MAX. */ | |
70 | #include <stdio.h> | |
00fe048c RS |
71 | #include <errno.h> |
72 | ||
73 | #include "config.h" | |
74 | #include "tree.h" | |
75 | #include "rtl.h" | |
76 | #include "flags.h" | |
77 | #include "regs.h" | |
78 | #include "insn-config.h" | |
79 | #include "reload.h" | |
0eb0686e | 80 | #include "defaults.h" |
c3bbab6a | 81 | #include "output.h" /* ASM_OUTPUT_SOURCE_LINE may refer to sdb functions. */ |
00fe048c RS |
82 | |
83 | #ifndef errno | |
84 | extern int errno; | |
85 | #endif | |
86 | ||
b372168c | 87 | #ifdef XCOFF_DEBUGGING_INFO |
95f2ba07 | 88 | #include "xcoffout.h" |
b372168c MM |
89 | #endif |
90 | ||
00fe048c RS |
91 | #ifndef ASM_STABS_OP |
92 | #define ASM_STABS_OP ".stabs" | |
93 | #endif | |
94 | ||
95 | #ifndef ASM_STABN_OP | |
96 | #define ASM_STABN_OP ".stabn" | |
97 | #endif | |
98 | ||
01e2750c RS |
99 | #ifndef DBX_TYPE_DECL_STABS_CODE |
100 | #define DBX_TYPE_DECL_STABS_CODE N_LSYM | |
b372168c MM |
101 | #endif |
102 | ||
103 | #ifndef DBX_STATIC_CONST_VAR_CODE | |
104 | #define DBX_STATIC_CONST_VAR_CODE N_FUN | |
105 | #endif | |
106 | ||
107 | #ifndef DBX_REGPARM_STABS_CODE | |
108 | #define DBX_REGPARM_STABS_CODE N_RSYM | |
109 | #endif | |
110 | ||
111 | #ifndef DBX_REGPARM_STABS_LETTER | |
112 | #define DBX_REGPARM_STABS_LETTER 'P' | |
113 | #endif | |
114 | ||
01e2750c RS |
115 | #ifndef DBX_MEMPARM_STABS_LETTER |
116 | #define DBX_MEMPARM_STABS_LETTER 'p' | |
117 | #endif | |
118 | ||
d4018fbf PE |
119 | #ifndef FILE_NAME_JOINER |
120 | #define FILE_NAME_JOINER "/" | |
121 | #endif | |
122 | ||
00fe048c RS |
123 | /* Nonzero means if the type has methods, only output debugging |
124 | information if methods are actually written to the asm file. */ | |
125 | ||
126 | static int flag_minimal_debug = 1; | |
127 | ||
128 | /* Nonzero if we have actually used any of the GDB extensions | |
129 | to the debugging format. The idea is that we use them for the | |
130 | first time only if there's a strong reason, but once we have done that, | |
131 | we use them whenever convenient. */ | |
132 | ||
133 | static int have_used_extensions = 0; | |
134 | ||
b372168c | 135 | char *getpwd (); |
00fe048c RS |
136 | |
137 | /* Typical USG systems don't have stab.h, and they also have | |
138 | no use for DBX-format debugging info. */ | |
139 | ||
b372168c | 140 | #if defined (DBX_DEBUGGING_INFO) || defined (XCOFF_DEBUGGING_INFO) |
00fe048c RS |
141 | |
142 | #ifdef DEBUG_SYMS_TEXT | |
143 | #define FORCE_TEXT text_section (); | |
144 | #else | |
145 | #define FORCE_TEXT | |
146 | #endif | |
147 | ||
95f2ba07 | 148 | #if defined (USG) || defined (NO_STAB_H) |
00fe048c RS |
149 | #include "gstab.h" /* If doing DBX on sysV, use our own stab.h. */ |
150 | #else | |
151 | #include <stab.h> /* On BSD, use the system's stab.h. */ | |
152 | ||
153 | /* This is a GNU extension we need to reference in this file. */ | |
154 | #ifndef N_CATCH | |
155 | #define N_CATCH 0x54 | |
156 | #endif | |
157 | #endif /* not USG */ | |
158 | ||
159 | #ifdef __GNU_STAB__ | |
160 | #define STAB_CODE_TYPE enum __stab_debug_code | |
161 | #else | |
162 | #define STAB_CODE_TYPE int | |
163 | #endif | |
164 | ||
165 | /* 1 if PARM is passed to this function in memory. */ | |
166 | ||
167 | #define PARM_PASSED_IN_MEMORY(PARM) \ | |
168 | (GET_CODE (DECL_INCOMING_RTL (PARM)) == MEM) | |
169 | ||
170 | /* A C expression for the integer offset value of an automatic variable | |
171 | (N_LSYM) having address X (an RTX). */ | |
172 | #ifndef DEBUGGER_AUTO_OFFSET | |
173 | #define DEBUGGER_AUTO_OFFSET(X) \ | |
174 | (GET_CODE (X) == PLUS ? INTVAL (XEXP (X, 1)) : 0) | |
175 | #endif | |
176 | ||
177 | /* A C expression for the integer offset value of an argument (N_PSYM) | |
178 | having address X (an RTX). The nominal offset is OFFSET. */ | |
179 | #ifndef DEBUGGER_ARG_OFFSET | |
180 | #define DEBUGGER_ARG_OFFSET(OFFSET, X) (OFFSET) | |
181 | #endif | |
182 | ||
183 | /* Stream for writing to assembler file. */ | |
184 | ||
185 | static FILE *asmfile; | |
186 | ||
187 | /* Last source file name mentioned in a NOTE insn. */ | |
188 | ||
189 | static char *lastfile; | |
190 | ||
191 | /* Current working directory. */ | |
192 | ||
193 | static char *cwd; | |
00fe048c RS |
194 | |
195 | enum typestatus {TYPE_UNSEEN, TYPE_XREF, TYPE_DEFINED}; | |
196 | ||
197 | /* Vector recording the status of describing C data types. | |
198 | When we first notice a data type (a tree node), | |
199 | we assign it a number using next_type_number. | |
200 | That is its index in this vector. | |
201 | The vector element says whether we have yet output | |
202 | the definition of the type. TYPE_XREF says we have | |
203 | output it as a cross-reference only. */ | |
204 | ||
205 | enum typestatus *typevec; | |
206 | ||
207 | /* Number of elements of space allocated in `typevec'. */ | |
208 | ||
209 | static int typevec_len; | |
210 | ||
211 | /* In dbx output, each type gets a unique number. | |
212 | This is the number for the next type output. | |
213 | The number, once assigned, is in the TYPE_SYMTAB_ADDRESS field. */ | |
214 | ||
215 | static int next_type_number; | |
216 | ||
217 | /* In dbx output, we must assign symbol-blocks id numbers | |
218 | in the order in which their beginnings are encountered. | |
219 | We output debugging info that refers to the beginning and | |
220 | end of the ranges of code in each block | |
221 | with assembler labels LBBn and LBEn, where n is the block number. | |
222 | The labels are generated in final, which assigns numbers to the | |
223 | blocks in the same way. */ | |
224 | ||
225 | static int next_block_number; | |
226 | ||
227 | /* These variables are for dbxout_symbol to communicate to | |
228 | dbxout_finish_symbol. | |
229 | current_sym_code is the symbol-type-code, a symbol N_... define in stab.h. | |
230 | current_sym_value and current_sym_addr are two ways to address the | |
231 | value to store in the symtab entry. | |
232 | current_sym_addr if nonzero represents the value as an rtx. | |
233 | If that is zero, current_sym_value is used. This is used | |
234 | when the value is an offset (such as for auto variables, | |
235 | register variables and parms). */ | |
236 | ||
237 | static STAB_CODE_TYPE current_sym_code; | |
238 | static int current_sym_value; | |
239 | static rtx current_sym_addr; | |
240 | ||
241 | /* Number of chars of symbol-description generated so far for the | |
242 | current symbol. Used by CHARS and CONTIN. */ | |
243 | ||
244 | static int current_sym_nchars; | |
245 | ||
246 | /* Report having output N chars of the current symbol-description. */ | |
247 | ||
248 | #define CHARS(N) (current_sym_nchars += (N)) | |
249 | ||
250 | /* Break the current symbol-description, generating a continuation, | |
251 | if it has become long. */ | |
252 | ||
253 | #ifndef DBX_CONTIN_LENGTH | |
254 | #define DBX_CONTIN_LENGTH 80 | |
255 | #endif | |
256 | ||
257 | #if DBX_CONTIN_LENGTH > 0 | |
258 | #define CONTIN \ | |
259 | do {if (current_sym_nchars > DBX_CONTIN_LENGTH) dbxout_continue ();} while (0) | |
260 | #else | |
261 | #define CONTIN | |
262 | #endif | |
263 | ||
264 | void dbxout_types (); | |
265 | void dbxout_args (); | |
266 | void dbxout_symbol (); | |
267 | static void dbxout_type_name (); | |
268 | static void dbxout_type (); | |
269 | static void dbxout_typedefs (); | |
47700802 RS |
270 | static void dbxout_symbol_name (); |
271 | static void dbxout_symbol_location (); | |
00fe048c RS |
272 | static void dbxout_prepare_symbol (); |
273 | static void dbxout_finish_symbol (); | |
274 | static void dbxout_continue (); | |
275 | static void print_int_cst_octal (); | |
276 | static void print_octal (); | |
277 | \f | |
278 | #if 0 /* Not clear we will actually need this. */ | |
279 | ||
280 | /* Return the absolutized filename for the given relative | |
281 | filename. Note that if that filename is already absolute, it may | |
282 | still be returned in a modified form because this routine also | |
283 | eliminates redundant slashes and single dots and eliminates double | |
284 | dots to get a shortest possible filename from the given input | |
285 | filename. The absolutization of relative filenames is made by | |
286 | assuming that the given filename is to be taken as relative to | |
287 | the first argument (cwd) or to the current directory if cwd is | |
288 | NULL. */ | |
289 | ||
290 | static char * | |
291 | abspath (rel_filename) | |
292 | char *rel_filename; | |
293 | { | |
294 | /* Setup the current working directory as needed. */ | |
295 | char *abs_buffer | |
296 | = (char *) alloca (strlen (cwd) + strlen (rel_filename) + 1); | |
297 | char *endp = abs_buffer; | |
298 | char *outp, *inp; | |
299 | char *value; | |
300 | ||
b372168c | 301 | /* Copy the filename (possibly preceded by the current working |
00fe048c RS |
302 | directory name) into the absolutization buffer. */ |
303 | ||
304 | { | |
305 | char *src_p; | |
306 | ||
307 | if (rel_filename[0] != '/') | |
308 | { | |
309 | src_p = cwd; | |
310 | while (*endp++ = *src_p++) | |
311 | continue; | |
312 | *(endp-1) = '/'; /* overwrite null */ | |
313 | } | |
314 | src_p = rel_filename; | |
315 | while (*endp++ = *src_p++) | |
316 | continue; | |
317 | if (endp[-1] == '/') | |
318 | *endp = '\0'; | |
00fe048c RS |
319 | |
320 | /* Now make a copy of abs_buffer into abs_buffer, shortening the | |
321 | filename (by taking out slashes and dots) as we go. */ | |
322 | ||
323 | outp = inp = abs_buffer; | |
324 | *outp++ = *inp++; /* copy first slash */ | |
325 | for (;;) | |
326 | { | |
327 | if (!inp[0]) | |
328 | break; | |
329 | else if (inp[0] == '/' && outp[-1] == '/') | |
330 | { | |
331 | inp++; | |
332 | continue; | |
333 | } | |
334 | else if (inp[0] == '.' && outp[-1] == '/') | |
335 | { | |
336 | if (!inp[1]) | |
337 | break; | |
338 | else if (inp[1] == '/') | |
339 | { | |
340 | inp += 2; | |
341 | continue; | |
342 | } | |
343 | else if ((inp[1] == '.') && (inp[2] == 0 || inp[2] == '/')) | |
344 | { | |
345 | inp += (inp[2] == '/') ? 3 : 2; | |
346 | outp -= 2; | |
347 | while (outp >= abs_buffer && *outp != '/') | |
348 | outp--; | |
349 | if (outp < abs_buffer) | |
350 | { | |
351 | /* Catch cases like /.. where we try to backup to a | |
352 | point above the absolute root of the logical file | |
353 | system. */ | |
354 | ||
355 | fprintf (stderr, "%s: invalid file name: %s\n", | |
356 | pname, rel_filename); | |
357 | exit (1); | |
358 | } | |
359 | *++outp = '\0'; | |
360 | continue; | |
361 | } | |
362 | } | |
363 | *outp++ = *inp++; | |
364 | } | |
365 | ||
366 | /* On exit, make sure that there is a trailing null, and make sure that | |
367 | the last character of the returned string is *not* a slash. */ | |
368 | ||
369 | *outp = '\0'; | |
370 | if (outp[-1] == '/') | |
371 | *--outp = '\0'; | |
372 | ||
373 | /* Make a copy (in the heap) of the stuff left in the absolutization | |
374 | buffer and return a pointer to the copy. */ | |
375 | ||
376 | value = (char *) oballoc (strlen (abs_buffer) + 1); | |
377 | strcpy (value, abs_buffer); | |
378 | return value; | |
379 | } | |
380 | #endif /* 0 */ | |
381 | \f | |
382 | /* At the beginning of compilation, start writing the symbol table. | |
383 | Initialize `typevec' and output the standard data types of C. */ | |
384 | ||
385 | void | |
386 | dbxout_init (asm_file, input_file_name, syms) | |
387 | FILE *asm_file; | |
388 | char *input_file_name; | |
389 | tree syms; | |
390 | { | |
391 | char ltext_label_name[100]; | |
392 | ||
393 | asmfile = asm_file; | |
394 | ||
395 | typevec_len = 100; | |
396 | typevec = (enum typestatus *) xmalloc (typevec_len * sizeof typevec[0]); | |
397 | bzero (typevec, typevec_len * sizeof typevec[0]); | |
398 | ||
399 | /* Convert Ltext into the appropriate format for local labels in case | |
400 | the system doesn't insert underscores in front of user generated | |
401 | labels. */ | |
402 | ASM_GENERATE_INTERNAL_LABEL (ltext_label_name, "Ltext", 0); | |
403 | ||
404 | /* Put the current working directory in an N_SO symbol. */ | |
b372168c MM |
405 | #ifndef DBX_WORKING_DIRECTORY /* Only some versions of DBX want this, |
406 | but GDB always does. */ | |
196cedd0 | 407 | if (use_gnu_debug_info_extensions) |
b372168c MM |
408 | #endif |
409 | { | |
d4018fbf PE |
410 | if (!cwd && (cwd = getpwd ()) && (!*cwd || cwd[strlen (cwd) - 1] != '/')) |
411 | { | |
412 | char *wdslash = xmalloc (strlen (cwd) + sizeof (FILE_NAME_JOINER)); | |
413 | sprintf (wdslash, "%s%s", cwd, FILE_NAME_JOINER); | |
414 | cwd = wdslash; | |
415 | } | |
416 | if (cwd) | |
b372168c | 417 | { |
00fe048c | 418 | #ifdef DBX_OUTPUT_MAIN_SOURCE_DIRECTORY |
b372168c | 419 | DBX_OUTPUT_MAIN_SOURCE_DIRECTORY (asmfile, cwd); |
00fe048c | 420 | #else /* no DBX_OUTPUT_MAIN_SOURCE_DIRECTORY */ |
d4018fbf PE |
421 | fprintf (asmfile, "%s ", ASM_STABS_OP); |
422 | output_quoted_string (asmfile, cwd); | |
423 | fprintf (asmfile, ",%d,0,0,%s\n", N_SO, <ext_label_name[1]); | |
00fe048c | 424 | #endif /* no DBX_OUTPUT_MAIN_SOURCE_DIRECTORY */ |
b372168c MM |
425 | } |
426 | } | |
00fe048c RS |
427 | |
428 | #ifdef DBX_OUTPUT_MAIN_SOURCE_FILENAME | |
429 | /* This should NOT be DBX_OUTPUT_SOURCE_FILENAME. That | |
430 | would give us an N_SOL, and we want an N_SO. */ | |
431 | DBX_OUTPUT_MAIN_SOURCE_FILENAME (asmfile, input_file_name); | |
432 | #else /* no DBX_OUTPUT_MAIN_SOURCE_FILENAME */ | |
433 | /* We include outputting `Ltext:' here, | |
434 | because that gives you a way to override it. */ | |
435 | /* Used to put `Ltext:' before the reference, but that loses on sun 4. */ | |
d4018fbf PE |
436 | fprintf (asmfile, "%s ", ASM_STABS_OP); |
437 | output_quoted_string (asmfile, input_file_name); | |
438 | fprintf (asmfile, ",%d,0,0,%s\n", | |
00fe048c RS |
439 | N_SO, <ext_label_name[1]); |
440 | text_section (); | |
441 | ASM_OUTPUT_INTERNAL_LABEL (asmfile, "Ltext", 0); | |
442 | #endif /* no DBX_OUTPUT_MAIN_SOURCE_FILENAME */ | |
443 | ||
01571284 RS |
444 | /* Possibly output something to inform GDB that this compilation was by |
445 | GCC. It's easier for GDB to parse it when after the N_SO's. This | |
446 | is used in Solaris 2. */ | |
447 | #ifdef ASM_IDENTIFY_GCC_AFTER_SOURCE | |
448 | ASM_IDENTIFY_GCC_AFTER_SOURCE (asmfile); | |
449 | #endif | |
450 | ||
00fe048c RS |
451 | lastfile = input_file_name; |
452 | ||
453 | next_type_number = 1; | |
454 | next_block_number = 2; | |
455 | ||
456 | /* Make sure that types `int' and `char' have numbers 1 and 2. | |
457 | Definitions of other integer types will refer to those numbers. | |
458 | (Actually it should no longer matter what their numbers are. | |
459 | Also, if any types with tags have been defined, dbxout_symbol | |
460 | will output them first, so the numbers won't be 1 and 2. That | |
461 | happens in C++. So it's a good thing it should no longer matter). */ | |
462 | ||
463 | #ifdef DBX_OUTPUT_STANDARD_TYPES | |
464 | DBX_OUTPUT_STANDARD_TYPES (syms); | |
465 | #else | |
466 | dbxout_symbol (TYPE_NAME (integer_type_node), 0); | |
467 | dbxout_symbol (TYPE_NAME (char_type_node), 0); | |
468 | #endif | |
469 | ||
470 | /* Get all permanent types that have typedef names, | |
471 | and output them all, except for those already output. */ | |
472 | ||
473 | dbxout_typedefs (syms); | |
474 | } | |
475 | ||
476 | /* Output any typedef names for types described by TYPE_DECLs in SYMS, | |
477 | in the reverse order from that which is found in SYMS. */ | |
478 | ||
479 | static void | |
480 | dbxout_typedefs (syms) | |
481 | tree syms; | |
482 | { | |
483 | if (syms) | |
484 | { | |
485 | dbxout_typedefs (TREE_CHAIN (syms)); | |
486 | if (TREE_CODE (syms) == TYPE_DECL) | |
487 | { | |
488 | tree type = TREE_TYPE (syms); | |
489 | if (TYPE_NAME (type) | |
490 | && TREE_CODE (TYPE_NAME (type)) == TYPE_DECL | |
491 | && ! TREE_ASM_WRITTEN (TYPE_NAME (type))) | |
492 | dbxout_symbol (TYPE_NAME (type), 0); | |
493 | } | |
494 | } | |
495 | } | |
496 | ||
497 | /* Output debugging info to FILE to switch to sourcefile FILENAME. */ | |
498 | ||
499 | void | |
500 | dbxout_source_file (file, filename) | |
501 | FILE *file; | |
502 | char *filename; | |
503 | { | |
504 | char ltext_label_name[100]; | |
505 | ||
506 | if (filename && (lastfile == 0 || strcmp (filename, lastfile))) | |
507 | { | |
508 | #ifdef DBX_OUTPUT_SOURCE_FILENAME | |
509 | DBX_OUTPUT_SOURCE_FILENAME (file, filename); | |
510 | #else | |
511 | ASM_GENERATE_INTERNAL_LABEL (ltext_label_name, "Ltext", 0); | |
d4018fbf PE |
512 | fprintf (file, "%s ", ASM_STABS_OP); |
513 | output_quoted_string (file, filename); | |
514 | fprintf (file, ",%d,0,0,%s\n", N_SOL, <ext_label_name[1]); | |
00fe048c RS |
515 | #endif |
516 | lastfile = filename; | |
517 | } | |
518 | } | |
519 | ||
674c724c RS |
520 | /* Output a line number symbol entry into output stream FILE, |
521 | for source file FILENAME and line number LINENO. */ | |
522 | ||
523 | void | |
524 | dbxout_source_line (file, filename, lineno) | |
525 | FILE *file; | |
526 | char *filename; | |
527 | int lineno; | |
528 | { | |
529 | dbxout_source_file (file, filename); | |
530 | ||
531 | #ifdef ASM_OUTPUT_SOURCE_LINE | |
532 | ASM_OUTPUT_SOURCE_LINE (file, lineno); | |
533 | #else | |
534 | fprintf (file, "\t%s %d,0,%d\n", ASM_STABD_OP, N_SLINE, lineno); | |
535 | #endif | |
536 | } | |
537 | ||
00fe048c RS |
538 | /* At the end of compilation, finish writing the symbol table. |
539 | Unless you define DBX_OUTPUT_MAIN_SOURCE_FILE_END, the default is | |
540 | to do nothing. */ | |
541 | ||
542 | void | |
543 | dbxout_finish (file, filename) | |
544 | FILE *file; | |
545 | char *filename; | |
546 | { | |
547 | #ifdef DBX_OUTPUT_MAIN_SOURCE_FILE_END | |
548 | DBX_OUTPUT_MAIN_SOURCE_FILE_END (file, filename); | |
549 | #endif /* DBX_OUTPUT_MAIN_SOURCE_FILE_END */ | |
550 | } | |
551 | ||
552 | /* Continue a symbol-description that gets too big. | |
553 | End one symbol table entry with a double-backslash | |
554 | and start a new one, eventually producing something like | |
555 | .stabs "start......\\",code,0,value | |
556 | .stabs "...rest",code,0,value */ | |
557 | ||
558 | static void | |
559 | dbxout_continue () | |
560 | { | |
561 | #ifdef DBX_CONTIN_CHAR | |
562 | fprintf (asmfile, "%c", DBX_CONTIN_CHAR); | |
563 | #else | |
564 | fprintf (asmfile, "\\\\"); | |
565 | #endif | |
0d92cbff | 566 | dbxout_finish_symbol (NULL_TREE); |
00fe048c RS |
567 | fprintf (asmfile, "%s \"", ASM_STABS_OP); |
568 | current_sym_nchars = 0; | |
569 | } | |
570 | \f | |
6dc42e49 | 571 | /* Subroutine of `dbxout_type'. Output the type fields of TYPE. |
00fe048c RS |
572 | This must be a separate function because anonymous unions require |
573 | recursive calls. */ | |
574 | ||
575 | static void | |
576 | dbxout_type_fields (type) | |
577 | tree type; | |
578 | { | |
579 | tree tem; | |
15a5b8a2 RS |
580 | /* Output the name, type, position (in bits), size (in bits) of each |
581 | field. */ | |
00fe048c RS |
582 | for (tem = TYPE_FIELDS (type); tem; tem = TREE_CHAIN (tem)) |
583 | { | |
15a5b8a2 | 584 | /* For nameless subunions and subrecords, treat their fields as ours. */ |
00fe048c | 585 | if (DECL_NAME (tem) == NULL_TREE |
15a5b8a2 | 586 | && (TREE_CODE (TREE_TYPE (tem)) == UNION_TYPE |
c1b98a95 | 587 | || TREE_CODE (TREE_TYPE (tem)) == QUAL_UNION_TYPE |
15a5b8a2 | 588 | || TREE_CODE (TREE_TYPE (tem)) == RECORD_TYPE)) |
00fe048c RS |
589 | dbxout_type_fields (TREE_TYPE (tem)); |
590 | /* Omit here local type decls until we know how to support them. */ | |
591 | else if (TREE_CODE (tem) == TYPE_DECL) | |
592 | continue; | |
593 | /* Omit here the nameless fields that are used to skip bits. */ | |
594 | else if (DECL_NAME (tem) != 0 && TREE_CODE (tem) != CONST_DECL) | |
595 | { | |
596 | /* Continue the line if necessary, | |
597 | but not before the first field. */ | |
598 | if (tem != TYPE_FIELDS (type)) | |
599 | CONTIN; | |
600 | ||
196cedd0 | 601 | if (use_gnu_debug_info_extensions |
00fe048c RS |
602 | && flag_minimal_debug |
603 | && TREE_CODE (tem) == FIELD_DECL | |
604 | && DECL_VIRTUAL_P (tem) | |
605 | && DECL_ASSEMBLER_NAME (tem)) | |
606 | { | |
607 | have_used_extensions = 1; | |
608 | CHARS (3 + IDENTIFIER_LENGTH (DECL_NAME (TYPE_NAME (DECL_FCONTEXT (tem))))); | |
609 | fputs (IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (tem)), asmfile); | |
3a7587e4 | 610 | dbxout_type (DECL_FCONTEXT (tem), 0, 0); |
00fe048c | 611 | fprintf (asmfile, ":"); |
3a7587e4 | 612 | dbxout_type (TREE_TYPE (tem), 0, 0); |
00fe048c RS |
613 | fprintf (asmfile, ",%d;", |
614 | TREE_INT_CST_LOW (DECL_FIELD_BITPOS (tem))); | |
615 | continue; | |
616 | } | |
617 | ||
618 | fprintf (asmfile, "%s:", IDENTIFIER_POINTER (DECL_NAME (tem))); | |
619 | CHARS (2 + IDENTIFIER_LENGTH (DECL_NAME (tem))); | |
620 | ||
196cedd0 | 621 | if (use_gnu_debug_info_extensions |
00fe048c RS |
622 | && (TREE_PRIVATE (tem) || TREE_PROTECTED (tem) |
623 | || TREE_CODE (tem) != FIELD_DECL)) | |
624 | { | |
625 | have_used_extensions = 1; | |
626 | putc ('/', asmfile); | |
627 | putc ((TREE_PRIVATE (tem) ? '0' | |
628 | : TREE_PROTECTED (tem) ? '1' : '2'), | |
629 | asmfile); | |
630 | CHARS (2); | |
631 | } | |
632 | ||
633 | dbxout_type ((TREE_CODE (tem) == FIELD_DECL | |
634 | && DECL_BIT_FIELD_TYPE (tem)) | |
635 | ? DECL_BIT_FIELD_TYPE (tem) | |
3a7587e4 | 636 | : TREE_TYPE (tem), 0, 0); |
00fe048c RS |
637 | |
638 | if (TREE_CODE (tem) == VAR_DECL) | |
639 | { | |
196cedd0 | 640 | if (TREE_STATIC (tem) && use_gnu_debug_info_extensions) |
00fe048c RS |
641 | { |
642 | char *name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (tem)); | |
643 | have_used_extensions = 1; | |
00fe048c RS |
644 | fprintf (asmfile, ":%s;", name); |
645 | CHARS (strlen (name)); | |
646 | } | |
647 | else | |
648 | { | |
649 | /* If TEM is non-static, GDB won't understand it. */ | |
650 | fprintf (asmfile, ",0,0;"); | |
651 | } | |
652 | } | |
653 | else if (TREE_CODE (DECL_FIELD_BITPOS (tem)) == INTEGER_CST) | |
654 | { | |
655 | fprintf (asmfile, ",%d,%d;", | |
656 | TREE_INT_CST_LOW (DECL_FIELD_BITPOS (tem)), | |
657 | TREE_INT_CST_LOW (DECL_SIZE (tem))); | |
658 | } | |
659 | else | |
660 | /* This has yet to be implemented. */ | |
661 | abort (); | |
662 | CHARS (23); | |
663 | } | |
664 | } | |
665 | } | |
666 | \f | |
6dc42e49 | 667 | /* Subroutine of `dbxout_type_methods'. Output debug info about the |
00fe048c RS |
668 | method described DECL. DEBUG_NAME is an encoding of the method's |
669 | type signature. ??? We may be able to do without DEBUG_NAME altogether | |
670 | now. */ | |
671 | ||
672 | static void | |
673 | dbxout_type_method_1 (decl, debug_name) | |
674 | tree decl; | |
675 | char *debug_name; | |
676 | { | |
677 | tree firstarg = TREE_VALUE (TYPE_ARG_TYPES (TREE_TYPE (decl))); | |
678 | char c1 = 'A', c2; | |
679 | ||
680 | if (TREE_CODE (TREE_TYPE (decl)) == FUNCTION_TYPE) | |
681 | c2 = '?'; | |
682 | else /* it's a METHOD_TYPE. */ | |
683 | { | |
684 | /* A for normal functions. | |
685 | B for `const' member functions. | |
686 | C for `volatile' member functions. | |
687 | D for `const volatile' member functions. */ | |
688 | if (TYPE_READONLY (TREE_TYPE (firstarg))) | |
689 | c1 += 1; | |
690 | if (TYPE_VOLATILE (TREE_TYPE (firstarg))) | |
691 | c1 += 2; | |
692 | ||
693 | if (DECL_VINDEX (decl)) | |
694 | c2 = '*'; | |
695 | else | |
696 | c2 = '.'; | |
697 | } | |
698 | ||
699 | fprintf (asmfile, ":%s;%c%c%c", debug_name, | |
700 | TREE_PRIVATE (decl) ? '0' : TREE_PROTECTED (decl) ? '1' : '2', c1, c2); | |
701 | CHARS (IDENTIFIER_LENGTH (DECL_ASSEMBLER_NAME (decl)) + 6 | |
702 | - (debug_name - IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl)))); | |
703 | if (DECL_VINDEX (decl)) | |
704 | { | |
705 | fprintf (asmfile, "%d;", | |
706 | TREE_INT_CST_LOW (DECL_VINDEX (decl))); | |
3a7587e4 | 707 | dbxout_type (DECL_CONTEXT (decl), 0, 0); |
00fe048c RS |
708 | fprintf (asmfile, ";"); |
709 | CHARS (8); | |
710 | } | |
711 | } | |
712 | \f | |
713 | /* Subroutine of `dbxout_type'. Output debug info about the methods defined | |
714 | in TYPE. */ | |
715 | ||
716 | static void | |
717 | dbxout_type_methods (type) | |
718 | register tree type; | |
719 | { | |
720 | /* C++: put out the method names and their parameter lists */ | |
00fe048c | 721 | tree methods = TYPE_METHODS (type); |
95f2ba07 | 722 | tree type_encoding; |
00fe048c RS |
723 | register tree fndecl; |
724 | register tree last; | |
9161aa96 | 725 | char formatted_type_identifier_length[16]; |
00fe048c RS |
726 | register int type_identifier_length; |
727 | ||
728 | if (methods == NULL_TREE) | |
729 | return; | |
730 | ||
3a7587e4 | 731 | type_encoding = DECL_NAME (TYPE_NAME (type)); |
95f2ba07 KR |
732 | |
733 | /* C++: Template classes break some assumptions made by this code about | |
734 | the class names, constructor names, and encodings for assembler | |
735 | label names. For now, disable output of dbx info for them. */ | |
736 | { | |
3a7587e4 | 737 | char *ptr = IDENTIFIER_POINTER (type_encoding); |
1527c38f | 738 | /* This should use index. (mrs) */ |
95f2ba07 KR |
739 | while (*ptr && *ptr != '<') ptr++; |
740 | if (*ptr != 0) | |
741 | { | |
742 | static int warned; | |
743 | if (!warned) | |
744 | { | |
745 | warned = 1; | |
eaff4f5a BK |
746 | #ifdef HAVE_TEMPLATES |
747 | if (warn_template_debugging) | |
748 | warning ("dbx info for template class methods not yet supported"); | |
749 | #endif | |
95f2ba07 KR |
750 | } |
751 | return; | |
752 | } | |
753 | } | |
754 | ||
3a7587e4 | 755 | type_identifier_length = IDENTIFIER_LENGTH (type_encoding); |
95f2ba07 | 756 | |
9161aa96 RS |
757 | sprintf(formatted_type_identifier_length, "%d", type_identifier_length); |
758 | ||
d26ab756 RS |
759 | if (TREE_CODE (methods) == FUNCTION_DECL) |
760 | fndecl = methods; | |
761 | else if (TREE_VEC_ELT (methods, 0) != NULL_TREE) | |
00fe048c | 762 | fndecl = TREE_VEC_ELT (methods, 0); |
196cedd0 RS |
763 | else |
764 | fndecl = TREE_VEC_ELT (methods, 1); | |
00fe048c | 765 | |
00fe048c RS |
766 | while (fndecl) |
767 | { | |
768 | tree name = DECL_NAME (fndecl); | |
3a7587e4 | 769 | int need_prefix = 1; |
00fe048c | 770 | |
3a7587e4 RS |
771 | /* Group together all the methods for the same operation. |
772 | These differ in the types of the arguments. */ | |
00fe048c RS |
773 | for (last = NULL_TREE; |
774 | fndecl && (last == NULL_TREE || DECL_NAME (fndecl) == DECL_NAME (last)); | |
775 | fndecl = TREE_CHAIN (fndecl)) | |
776 | /* Output the name of the field (after overloading), as | |
777 | well as the name of the field before overloading, along | |
778 | with its parameter list */ | |
779 | { | |
3a7587e4 RS |
780 | /* This is the "mangled" name of the method. |
781 | It encodes the argument types. */ | |
00fe048c | 782 | char *debug_name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (fndecl)); |
3a7587e4 | 783 | int destructor = 0; |
00fe048c RS |
784 | |
785 | CONTIN; | |
786 | ||
787 | last = fndecl; | |
3a7587e4 RS |
788 | |
789 | if (DECL_IGNORED_P (fndecl)) | |
790 | continue; | |
791 | ||
00fe048c RS |
792 | if (flag_minimal_debug) |
793 | { | |
3a7587e4 RS |
794 | /* Detect ordinary methods because their mangled names |
795 | start with the operation name. */ | |
796 | if (!strncmp (IDENTIFIER_POINTER (name), debug_name, | |
797 | IDENTIFIER_LENGTH (name))) | |
798 | { | |
799 | debug_name += IDENTIFIER_LENGTH (name); | |
800 | if (debug_name[0] == '_' && debug_name[1] == '_') | |
801 | { | |
802 | char *method_name = debug_name + 2; | |
9161aa96 | 803 | char *length_ptr = formatted_type_identifier_length; |
3a7587e4 RS |
804 | /* Get past const and volatile qualifiers. */ |
805 | while (*method_name == 'C' || *method_name == 'V') | |
806 | method_name++; | |
9161aa96 RS |
807 | /* Skip digits for length of type_encoding. */ |
808 | while (*method_name == *length_ptr && *length_ptr) | |
809 | length_ptr++, method_name++; | |
3a7587e4 RS |
810 | if (! strncmp (method_name, |
811 | IDENTIFIER_POINTER (type_encoding), | |
812 | type_identifier_length)) | |
813 | method_name += type_identifier_length; | |
814 | debug_name = method_name; | |
815 | } | |
816 | } | |
817 | /* Detect constructors by their style of name mangling. */ | |
818 | else if (debug_name[0] == '_' && debug_name[1] == '_') | |
819 | { | |
820 | char *ctor_name = debug_name + 2; | |
9161aa96 | 821 | char *length_ptr = formatted_type_identifier_length; |
3a7587e4 RS |
822 | while (*ctor_name == 'C' || *ctor_name == 'V') |
823 | ctor_name++; | |
9161aa96 RS |
824 | /* Skip digits for length of type_encoding. */ |
825 | while (*ctor_name == *length_ptr && *length_ptr) | |
826 | length_ptr++, ctor_name++; | |
3a7587e4 RS |
827 | if (!strncmp (IDENTIFIER_POINTER (type_encoding), ctor_name, |
828 | type_identifier_length)) | |
829 | debug_name = ctor_name + type_identifier_length; | |
830 | } | |
831 | /* The other alternative is a destructor. */ | |
832 | else | |
833 | destructor = 1; | |
834 | ||
835 | /* Output the operation name just once, for the first method | |
836 | that we output. */ | |
837 | if (need_prefix) | |
838 | { | |
839 | fprintf (asmfile, "%s::", IDENTIFIER_POINTER (name)); | |
840 | CHARS (IDENTIFIER_LENGTH (name) + 2); | |
841 | need_prefix = 0; | |
842 | } | |
00fe048c | 843 | } |
3a7587e4 RS |
844 | |
845 | dbxout_type (TREE_TYPE (fndecl), 0, destructor); | |
846 | ||
00fe048c RS |
847 | dbxout_type_method_1 (fndecl, debug_name); |
848 | } | |
52a73899 MS |
849 | if (!need_prefix) |
850 | { | |
851 | putc (';', asmfile); | |
852 | CHARS (1); | |
853 | } | |
00fe048c RS |
854 | } |
855 | } | |
b238f8de PB |
856 | |
857 | /* Emit a "range" type specification, which has the form: | |
858 | "r<index type>;<lower bound>;<upper bound>;". | |
859 | TYPE is an INTEGER_TYPE. */ | |
860 | ||
861 | static void | |
862 | dbxout_range_type (type) | |
863 | tree type; | |
864 | { | |
865 | fprintf (asmfile, "r"); | |
866 | if (TREE_TYPE (type) && TREE_CODE (TREE_TYPE(type)) != INTEGER_TYPE) | |
867 | dbxout_type (TREE_TYPE (type), 0, 0); | |
868 | else | |
869 | { | |
870 | /* This used to say `r1' and we used to take care | |
871 | to make sure that `int' was type number 1. */ | |
872 | fprintf (asmfile, "%d", TYPE_SYMTAB_ADDRESS (integer_type_node)); | |
873 | } | |
874 | if (TREE_CODE (TYPE_MIN_VALUE (type)) == INTEGER_CST) | |
875 | fprintf (asmfile, ";%d", | |
876 | TREE_INT_CST_LOW (TYPE_MIN_VALUE (type))); | |
877 | else | |
878 | fprintf (asmfile, ";0"); | |
879 | if (TREE_CODE (TYPE_MAX_VALUE (type)) == INTEGER_CST) | |
880 | fprintf (asmfile, ";%d;", | |
881 | TREE_INT_CST_LOW (TYPE_MAX_VALUE (type))); | |
882 | else | |
883 | fprintf (asmfile, ";-1;"); | |
884 | } | |
00fe048c RS |
885 | \f |
886 | /* Output a reference to a type. If the type has not yet been | |
887 | described in the dbx output, output its definition now. | |
888 | For a type already defined, just refer to its definition | |
889 | using the type number. | |
890 | ||
891 | If FULL is nonzero, and the type has been described only with | |
892 | a forward-reference, output the definition now. | |
893 | If FULL is zero in this case, just refer to the forward-reference | |
3a7587e4 RS |
894 | using the number previously allocated. |
895 | ||
896 | If SHOW_ARG_TYPES is nonzero, we output a description of the argument | |
897 | types for a METHOD_TYPE. */ | |
00fe048c RS |
898 | |
899 | static void | |
3a7587e4 | 900 | dbxout_type (type, full, show_arg_types) |
00fe048c RS |
901 | tree type; |
902 | int full; | |
3a7587e4 | 903 | int show_arg_types; |
00fe048c RS |
904 | { |
905 | register tree tem; | |
35571e38 | 906 | static int anonymous_type_number = 0; |
00fe048c RS |
907 | |
908 | /* If there was an input error and we don't really have a type, | |
909 | avoid crashing and write something that is at least valid | |
910 | by assuming `int'. */ | |
911 | if (type == error_mark_node) | |
912 | type = integer_type_node; | |
913 | else | |
914 | { | |
915 | type = TYPE_MAIN_VARIANT (type); | |
916 | if (TYPE_NAME (type) | |
917 | && TREE_CODE (TYPE_NAME (type)) == TYPE_DECL | |
918 | && DECL_IGNORED_P (TYPE_NAME (type))) | |
919 | full = 0; | |
920 | } | |
921 | ||
922 | if (TYPE_SYMTAB_ADDRESS (type) == 0) | |
923 | { | |
924 | /* Type has no dbx number assigned. Assign next available number. */ | |
925 | TYPE_SYMTAB_ADDRESS (type) = next_type_number++; | |
926 | ||
927 | /* Make sure type vector is long enough to record about this type. */ | |
928 | ||
929 | if (next_type_number == typevec_len) | |
930 | { | |
931 | typevec = (enum typestatus *) xrealloc (typevec, typevec_len * 2 * sizeof typevec[0]); | |
932 | bzero (typevec + typevec_len, typevec_len * sizeof typevec[0]); | |
933 | typevec_len *= 2; | |
934 | } | |
935 | } | |
936 | ||
937 | /* Output the number of this type, to refer to it. */ | |
938 | fprintf (asmfile, "%d", TYPE_SYMTAB_ADDRESS (type)); | |
939 | CHARS (3); | |
940 | ||
b372168c MM |
941 | #ifdef DBX_TYPE_DEFINED |
942 | if (DBX_TYPE_DEFINED (type)) | |
943 | return; | |
944 | #endif | |
945 | ||
00fe048c RS |
946 | /* If this type's definition has been output or is now being output, |
947 | that is all. */ | |
948 | ||
949 | switch (typevec[TYPE_SYMTAB_ADDRESS (type)]) | |
950 | { | |
951 | case TYPE_UNSEEN: | |
952 | break; | |
953 | case TYPE_XREF: | |
dad0145a RS |
954 | /* If we have already had a cross reference, |
955 | and either that's all we want or that's the best we could do, | |
956 | don't repeat the cross reference. | |
957 | Sun dbx crashes if we do. */ | |
958 | if (! full || TYPE_SIZE (type) == 0 | |
959 | /* No way in DBX fmt to describe a variable size. */ | |
960 | || TREE_CODE (TYPE_SIZE (type)) != INTEGER_CST) | |
00fe048c RS |
961 | return; |
962 | break; | |
963 | case TYPE_DEFINED: | |
964 | return; | |
965 | } | |
966 | ||
967 | #ifdef DBX_NO_XREFS | |
968 | /* For systems where dbx output does not allow the `=xsNAME:' syntax, | |
969 | leave the type-number completely undefined rather than output | |
970 | a cross-reference. */ | |
971 | if (TREE_CODE (type) == RECORD_TYPE || TREE_CODE (type) == UNION_TYPE | |
c1b98a95 | 972 | || TREE_CODE (type) == QUAL_UNION_TYPE |
00fe048c RS |
973 | || TREE_CODE (type) == ENUMERAL_TYPE) |
974 | ||
975 | if ((TYPE_NAME (type) != 0 && !full) | |
976 | || TYPE_SIZE (type) == 0) | |
977 | { | |
978 | typevec[TYPE_SYMTAB_ADDRESS (type)] = TYPE_XREF; | |
979 | return; | |
980 | } | |
981 | #endif | |
982 | ||
983 | /* Output a definition now. */ | |
984 | ||
985 | fprintf (asmfile, "="); | |
986 | CHARS (1); | |
987 | ||
988 | /* Mark it as defined, so that if it is self-referent | |
989 | we will not get into an infinite recursion of definitions. */ | |
990 | ||
991 | typevec[TYPE_SYMTAB_ADDRESS (type)] = TYPE_DEFINED; | |
992 | ||
993 | switch (TREE_CODE (type)) | |
994 | { | |
995 | case VOID_TYPE: | |
996 | case LANG_TYPE: | |
997 | /* For a void type, just define it as itself; ie, "5=5". | |
998 | This makes us consider it defined | |
999 | without saying what it is. The debugger will make it | |
1000 | a void type when the reference is seen, and nothing will | |
1001 | ever override that default. */ | |
1002 | fprintf (asmfile, "%d", TYPE_SYMTAB_ADDRESS (type)); | |
1003 | CHARS (3); | |
1004 | break; | |
1005 | ||
1006 | case INTEGER_TYPE: | |
1007 | if (type == char_type_node && ! TREE_UNSIGNED (type)) | |
1008 | /* Output the type `char' as a subrange of itself! | |
1009 | I don't understand this definition, just copied it | |
1010 | from the output of pcc. | |
1011 | This used to use `r2' explicitly and we used to | |
1012 | take care to make sure that `char' was type number 2. */ | |
1013 | fprintf (asmfile, "r%d;0;127;", TYPE_SYMTAB_ADDRESS (type)); | |
fcf956c0 | 1014 | else if (use_gnu_debug_info_extensions && TYPE_PRECISION (type) > BITS_PER_WORD) |
00fe048c RS |
1015 | { |
1016 | /* This used to say `r1' and we used to take care | |
1017 | to make sure that `int' was type number 1. */ | |
1018 | fprintf (asmfile, "r%d;", TYPE_SYMTAB_ADDRESS (integer_type_node)); | |
1019 | print_int_cst_octal (TYPE_MIN_VALUE (type)); | |
1020 | fprintf (asmfile, ";"); | |
1021 | print_int_cst_octal (TYPE_MAX_VALUE (type)); | |
1022 | fprintf (asmfile, ";"); | |
1023 | } | |
b238f8de PB |
1024 | else /* Output other integer types as subranges of `int'. */ |
1025 | dbxout_range_type (type); | |
00fe048c RS |
1026 | CHARS (25); |
1027 | break; | |
1028 | ||
1029 | case REAL_TYPE: | |
1030 | /* This used to say `r1' and we used to take care | |
1031 | to make sure that `int' was type number 1. */ | |
1032 | fprintf (asmfile, "r%d;%d;0;", TYPE_SYMTAB_ADDRESS (integer_type_node), | |
cdece1ef | 1033 | int_size_in_bytes (type)); |
00fe048c RS |
1034 | CHARS (16); |
1035 | break; | |
1036 | ||
15a5b8a2 | 1037 | case CHAR_TYPE: |
72db60c6 PB |
1038 | if (use_gnu_debug_info_extensions) |
1039 | fprintf (asmfile, "@s%d;-20;", | |
1040 | BITS_PER_UNIT * int_size_in_bytes (type)); | |
1041 | else | |
15a5b8a2 RS |
1042 | /* Output the type `char' as a subrange of itself. |
1043 | That is what pcc seems to do. */ | |
1044 | fprintf (asmfile, "r%d;0;%d;", TYPE_SYMTAB_ADDRESS (char_type_node), | |
1045 | TREE_UNSIGNED (type) ? 255 : 127); | |
1046 | CHARS (9); | |
1047 | break; | |
1048 | ||
72db60c6 PB |
1049 | case BOOLEAN_TYPE: |
1050 | if (use_gnu_debug_info_extensions) | |
1051 | fprintf (asmfile, "@s%d;-16;", | |
1052 | BITS_PER_UNIT * int_size_in_bytes (type)); | |
1053 | else /* Define as enumeral type (False, True) */ | |
1054 | fprintf (asmfile, "eFalse:0,True:1,;"); | |
15a5b8a2 RS |
1055 | CHARS (17); |
1056 | break; | |
1057 | ||
1058 | case FILE_TYPE: | |
1059 | putc ('d', asmfile); | |
1060 | CHARS (1); | |
798d99ff | 1061 | dbxout_type (TREE_TYPE (type), 0, 0); |
15a5b8a2 RS |
1062 | break; |
1063 | ||
1064 | case COMPLEX_TYPE: | |
1065 | /* Differs from the REAL_TYPE by its new data type number */ | |
1066 | ||
1067 | if (TREE_CODE (TREE_TYPE (type)) == REAL_TYPE) | |
1068 | { | |
1069 | fprintf (asmfile, "r%d;%d;0;", | |
1070 | TYPE_SYMTAB_ADDRESS (type), | |
cdece1ef | 1071 | int_size_in_bytes (TREE_TYPE (type))); |
0e6bbe31 | 1072 | CHARS (15); /* The number is probably incorrect here. */ |
47cc012b RS |
1073 | } |
1074 | else | |
1075 | { | |
1076 | /* Output a complex integer type as a structure, | |
1077 | pending some other way to do it. */ | |
cdece1ef | 1078 | fprintf (asmfile, "s%d", int_size_in_bytes (type)); |
47cc012b RS |
1079 | |
1080 | fprintf (asmfile, "real:"); | |
1081 | CHARS (10); | |
1082 | dbxout_type (TREE_TYPE (type), 0, 0); | |
1083 | fprintf (asmfile, ",%d,%d;", | |
1084 | 0, TYPE_PRECISION (TREE_TYPE (type))); | |
1085 | CHARS (8); | |
1086 | fprintf (asmfile, "imag:"); | |
1087 | CHARS (5); | |
1088 | dbxout_type (TREE_TYPE (type), 0, 0); | |
1089 | fprintf (asmfile, ",%d,%d;;", | |
1090 | TYPE_PRECISION (TREE_TYPE (type)), | |
1091 | TYPE_PRECISION (TREE_TYPE (type))); | |
1092 | CHARS (9); | |
1093 | } | |
15a5b8a2 RS |
1094 | break; |
1095 | ||
1096 | case SET_TYPE: | |
1097 | putc ('S', asmfile); | |
1098 | CHARS (1); | |
798d99ff | 1099 | dbxout_type (TREE_TYPE (type), 0, 0); |
15a5b8a2 RS |
1100 | break; |
1101 | ||
00fe048c RS |
1102 | case ARRAY_TYPE: |
1103 | /* Output "a" followed by a range type definition | |
1104 | for the index type of the array | |
1105 | followed by a reference to the target-type. | |
b238f8de PB |
1106 | ar1;0;N;M for a C array of type M and size N+1. */ |
1107 | tem = TYPE_DOMAIN (type); | |
1108 | if (tem == NULL) | |
3f9bafd7 RS |
1109 | fprintf (asmfile, "ar%d;0;-1;", |
1110 | TYPE_SYMTAB_ADDRESS (integer_type_node)); | |
b238f8de PB |
1111 | else |
1112 | { | |
3f9bafd7 | 1113 | fprintf (asmfile, "a"); |
b238f8de PB |
1114 | dbxout_range_type (tem); |
1115 | } | |
00fe048c | 1116 | CHARS (17); |
3a7587e4 | 1117 | dbxout_type (TREE_TYPE (type), 0, 0); |
00fe048c RS |
1118 | break; |
1119 | ||
1120 | case RECORD_TYPE: | |
1121 | case UNION_TYPE: | |
c1b98a95 | 1122 | case QUAL_UNION_TYPE: |
00fe048c RS |
1123 | { |
1124 | int i, n_baseclasses = 0; | |
1125 | ||
1126 | if (TYPE_BINFO (type) != 0 && TYPE_BINFO_BASETYPES (type) != 0) | |
1127 | n_baseclasses = TREE_VEC_LENGTH (TYPE_BINFO_BASETYPES (type)); | |
1128 | ||
1129 | /* Output a structure type. */ | |
b372168c | 1130 | if ((TYPE_NAME (type) != 0 |
d938afd3 RS |
1131 | /* Long ago, Tiemann said this creates output that "confuses GDB". |
1132 | In April 93, mrs@cygnus.com said there is no such problem. | |
1133 | The type decls made automatically by struct specifiers | |
1134 | are marked with DECL_IGNORED_P in C++. */ | |
af0da0b8 | 1135 | #if 0 /* This creates output for anonymous classes which confuses GDB. */ |
b372168c MM |
1136 | && ! (TREE_CODE (TYPE_NAME (type)) == TYPE_DECL |
1137 | && DECL_IGNORED_P (TYPE_NAME (type))) | |
af0da0b8 | 1138 | #endif |
b372168c | 1139 | && !full) |
3a7587e4 RS |
1140 | || TYPE_SIZE (type) == 0 |
1141 | /* No way in DBX fmt to describe a variable size. */ | |
1142 | || TREE_CODE (TYPE_SIZE (type)) != INTEGER_CST) | |
00fe048c RS |
1143 | { |
1144 | /* If the type is just a cross reference, output one | |
1145 | and mark the type as partially described. | |
1146 | If it later becomes defined, we will output | |
1147 | its real definition. | |
1148 | If the type has a name, don't nest its definition within | |
1149 | another type's definition; instead, output an xref | |
1150 | and let the definition come when the name is defined. */ | |
1151 | fprintf (asmfile, (TREE_CODE (type) == RECORD_TYPE) ? "xs" : "xu"); | |
1152 | CHARS (3); | |
95f2ba07 | 1153 | #if 0 /* This assertion is legitimately false in C++. */ |
00fe048c RS |
1154 | /* We shouldn't be outputting a reference to a type before its |
1155 | definition unless the type has a tag name. | |
1156 | A typedef name without a tag name should be impossible. */ | |
1157 | if (TREE_CODE (TYPE_NAME (type)) != IDENTIFIER_NODE) | |
1158 | abort (); | |
1159 | #endif | |
35571e38 RS |
1160 | if (TYPE_NAME (type) != 0) |
1161 | dbxout_type_name (type); | |
1162 | else | |
1163 | fprintf (asmfile, "$$%d", anonymous_type_number++); | |
00fe048c RS |
1164 | fprintf (asmfile, ":"); |
1165 | typevec[TYPE_SYMTAB_ADDRESS (type)] = TYPE_XREF; | |
1166 | break; | |
1167 | } | |
00fe048c | 1168 | |
00fe048c RS |
1169 | /* Identify record or union, and print its size. */ |
1170 | fprintf (asmfile, (TREE_CODE (type) == RECORD_TYPE) ? "s%d" : "u%d", | |
cdece1ef | 1171 | int_size_in_bytes (type)); |
00fe048c | 1172 | |
196cedd0 | 1173 | if (use_gnu_debug_info_extensions) |
00fe048c RS |
1174 | { |
1175 | if (n_baseclasses) | |
1176 | { | |
1177 | have_used_extensions = 1; | |
1178 | fprintf (asmfile, "!%d,", n_baseclasses); | |
1179 | CHARS (8); | |
1180 | } | |
1181 | } | |
1182 | for (i = 0; i < n_baseclasses; i++) | |
1183 | { | |
1184 | tree child = TREE_VEC_ELT (BINFO_BASETYPES (TYPE_BINFO (type)), i); | |
196cedd0 | 1185 | if (use_gnu_debug_info_extensions) |
00fe048c RS |
1186 | { |
1187 | have_used_extensions = 1; | |
1188 | putc (TREE_VIA_VIRTUAL (child) ? '1' | |
1189 | : '0', | |
1190 | asmfile); | |
1191 | putc (TREE_VIA_PUBLIC (child) ? '2' | |
1192 | : '0', | |
1193 | asmfile); | |
1194 | fprintf (asmfile, "%d,", | |
1195 | TREE_INT_CST_LOW (BINFO_OFFSET (child)) * BITS_PER_UNIT); | |
1196 | CHARS (15); | |
3a7587e4 | 1197 | dbxout_type (BINFO_TYPE (child), 0, 0); |
00fe048c RS |
1198 | putc (';', asmfile); |
1199 | } | |
1200 | else | |
1201 | { | |
1202 | /* Print out the base class information with fields | |
1203 | which have the same names at the types they hold. */ | |
1204 | dbxout_type_name (BINFO_TYPE (child)); | |
1205 | putc (':', asmfile); | |
3a7587e4 | 1206 | dbxout_type (BINFO_TYPE (child), full, 0); |
00fe048c RS |
1207 | fprintf (asmfile, ",%d,%d;", |
1208 | TREE_INT_CST_LOW (BINFO_OFFSET (child)) * BITS_PER_UNIT, | |
1209 | TREE_INT_CST_LOW (DECL_SIZE (TYPE_NAME (BINFO_TYPE (child)))) * BITS_PER_UNIT); | |
1210 | CHARS (20); | |
1211 | } | |
1212 | } | |
1213 | } | |
1214 | ||
1215 | CHARS (11); | |
1216 | ||
1217 | /* Write out the field declarations. */ | |
1218 | dbxout_type_fields (type); | |
196cedd0 | 1219 | if (use_gnu_debug_info_extensions && TYPE_METHODS (type) != NULL_TREE) |
00fe048c RS |
1220 | { |
1221 | have_used_extensions = 1; | |
1222 | dbxout_type_methods (type); | |
1223 | } | |
1224 | putc (';', asmfile); | |
1225 | ||
196cedd0 | 1226 | if (use_gnu_debug_info_extensions && TREE_CODE (type) == RECORD_TYPE |
00fe048c RS |
1227 | /* Avoid the ~ if we don't really need it--it confuses dbx. */ |
1228 | && TYPE_VFIELD (type)) | |
1229 | { | |
1230 | have_used_extensions = 1; | |
1231 | ||
1232 | /* Tell GDB+ that it may keep reading. */ | |
1233 | putc ('~', asmfile); | |
1234 | ||
1235 | /* We need to write out info about what field this class | |
1236 | uses as its "main" vtable pointer field, because if this | |
1237 | field is inherited from a base class, GDB cannot necessarily | |
1238 | figure out which field it's using in time. */ | |
1239 | if (TYPE_VFIELD (type)) | |
1240 | { | |
1241 | putc ('%', asmfile); | |
3a7587e4 | 1242 | dbxout_type (DECL_FCONTEXT (TYPE_VFIELD (type)), 0, 0); |
00fe048c RS |
1243 | } |
1244 | putc (';', asmfile); | |
1245 | CHARS (3); | |
1246 | } | |
1247 | break; | |
1248 | ||
1249 | case ENUMERAL_TYPE: | |
1250 | if ((TYPE_NAME (type) != 0 && !full | |
1251 | && (TREE_CODE (TYPE_NAME (type)) == TYPE_DECL | |
1252 | && ! DECL_IGNORED_P (TYPE_NAME (type)))) | |
1253 | || TYPE_SIZE (type) == 0) | |
1254 | { | |
1255 | fprintf (asmfile, "xe"); | |
1256 | CHARS (3); | |
1257 | dbxout_type_name (type); | |
1258 | typevec[TYPE_SYMTAB_ADDRESS (type)] = TYPE_XREF; | |
1259 | fprintf (asmfile, ":"); | |
1260 | return; | |
1261 | } | |
01e2750c RS |
1262 | #ifdef DBX_OUTPUT_ENUM |
1263 | DBX_OUTPUT_ENUM (asmfile, type); | |
1264 | #else | |
00fe048c RS |
1265 | putc ('e', asmfile); |
1266 | CHARS (1); | |
1267 | for (tem = TYPE_VALUES (type); tem; tem = TREE_CHAIN (tem)) | |
1268 | { | |
71f15013 RS |
1269 | fprintf (asmfile, "%s:", IDENTIFIER_POINTER (TREE_PURPOSE (tem))); |
1270 | if (TREE_INT_CST_HIGH (TREE_VALUE (tem)) == 0) | |
1271 | { | |
1272 | if (TREE_INT_CST_LOW (TREE_VALUE (tem)) < 0) | |
1273 | fprintf (asmfile, "%u", TREE_INT_CST_LOW (TREE_VALUE (tem))); | |
1274 | else | |
1275 | fprintf (asmfile, "%d", TREE_INT_CST_LOW (TREE_VALUE (tem))); | |
1276 | } | |
1277 | else | |
1278 | print_int_cst_octal (TREE_VALUE (tem)); | |
1279 | fprintf (asmfile, ","); | |
1280 | CHARS (20 + IDENTIFIER_LENGTH (TREE_PURPOSE (tem))); | |
00fe048c RS |
1281 | if (TREE_CHAIN (tem) != 0) |
1282 | CONTIN; | |
1283 | } | |
1284 | putc (';', asmfile); | |
1285 | CHARS (1); | |
01e2750c | 1286 | #endif |
00fe048c RS |
1287 | break; |
1288 | ||
1289 | case POINTER_TYPE: | |
1290 | putc ('*', asmfile); | |
1291 | CHARS (1); | |
3a7587e4 | 1292 | dbxout_type (TREE_TYPE (type), 0, 0); |
00fe048c RS |
1293 | break; |
1294 | ||
1295 | case METHOD_TYPE: | |
196cedd0 | 1296 | if (use_gnu_debug_info_extensions) |
00fe048c RS |
1297 | { |
1298 | have_used_extensions = 1; | |
1299 | putc ('#', asmfile); | |
1300 | CHARS (1); | |
3a7587e4 | 1301 | if (flag_minimal_debug && !show_arg_types) |
00fe048c | 1302 | { |
3a7587e4 RS |
1303 | /* Normally, just output the return type. |
1304 | The argument types are encoded in the method name. */ | |
00fe048c | 1305 | putc ('#', asmfile); |
3a7587e4 | 1306 | dbxout_type (TREE_TYPE (type), 0, 0); |
00fe048c RS |
1307 | putc (';', asmfile); |
1308 | CHARS (1); | |
1309 | } | |
1310 | else | |
1311 | { | |
f72aed24 | 1312 | /* When outputting destructors, we need to write |
3a7587e4 RS |
1313 | the argument types out longhand. */ |
1314 | dbxout_type (TYPE_METHOD_BASETYPE (type), 0, 0); | |
00fe048c RS |
1315 | putc (',', asmfile); |
1316 | CHARS (1); | |
3a7587e4 | 1317 | dbxout_type (TREE_TYPE (type), 0, 0); |
00fe048c RS |
1318 | dbxout_args (TYPE_ARG_TYPES (type)); |
1319 | putc (';', asmfile); | |
1320 | CHARS (1); | |
1321 | } | |
1322 | } | |
1323 | else | |
1324 | { | |
1325 | /* Treat it as a function type. */ | |
3a7587e4 | 1326 | dbxout_type (TREE_TYPE (type), 0, 0); |
00fe048c RS |
1327 | } |
1328 | break; | |
1329 | ||
1330 | case OFFSET_TYPE: | |
196cedd0 | 1331 | if (use_gnu_debug_info_extensions) |
00fe048c RS |
1332 | { |
1333 | have_used_extensions = 1; | |
1334 | putc ('@', asmfile); | |
1335 | CHARS (1); | |
3a7587e4 | 1336 | dbxout_type (TYPE_OFFSET_BASETYPE (type), 0, 0); |
00fe048c RS |
1337 | putc (',', asmfile); |
1338 | CHARS (1); | |
3a7587e4 | 1339 | dbxout_type (TREE_TYPE (type), 0, 0); |
00fe048c RS |
1340 | } |
1341 | else | |
1342 | { | |
1343 | /* Should print as an int, because it is really | |
1344 | just an offset. */ | |
3a7587e4 | 1345 | dbxout_type (integer_type_node, 0, 0); |
00fe048c RS |
1346 | } |
1347 | break; | |
1348 | ||
1349 | case REFERENCE_TYPE: | |
196cedd0 | 1350 | if (use_gnu_debug_info_extensions) |
00fe048c | 1351 | have_used_extensions = 1; |
196cedd0 | 1352 | putc (use_gnu_debug_info_extensions ? '&' : '*', asmfile); |
00fe048c | 1353 | CHARS (1); |
3a7587e4 | 1354 | dbxout_type (TREE_TYPE (type), 0, 0); |
00fe048c RS |
1355 | break; |
1356 | ||
1357 | case FUNCTION_TYPE: | |
1358 | putc ('f', asmfile); | |
1359 | CHARS (1); | |
3a7587e4 | 1360 | dbxout_type (TREE_TYPE (type), 0, 0); |
00fe048c RS |
1361 | break; |
1362 | ||
1363 | default: | |
1364 | abort (); | |
1365 | } | |
1366 | } | |
1367 | ||
1368 | /* Print the value of integer constant C, in octal, | |
1369 | handling double precision. */ | |
1370 | ||
1371 | static void | |
1372 | print_int_cst_octal (c) | |
1373 | tree c; | |
1374 | { | |
0d92cbff RK |
1375 | unsigned HOST_WIDE_INT high = TREE_INT_CST_HIGH (c); |
1376 | unsigned HOST_WIDE_INT low = TREE_INT_CST_LOW (c); | |
1377 | int excess = (3 - (HOST_BITS_PER_WIDE_INT % 3)); | |
00fe048c RS |
1378 | |
1379 | fprintf (asmfile, "0"); | |
1380 | ||
1381 | if (excess == 3) | |
1382 | { | |
0d92cbff RK |
1383 | print_octal (high, HOST_BITS_PER_WIDE_INT / 3); |
1384 | print_octal (low, HOST_BITS_PER_WIDE_INT / 3); | |
00fe048c RS |
1385 | } |
1386 | else | |
1387 | { | |
0d92cbff RK |
1388 | unsigned HOST_WIDE_INT beg = high >> excess; |
1389 | unsigned HOST_WIDE_INT middle | |
1390 | = ((high & (((HOST_WIDE_INT) 1 << excess) - 1)) << (3 - excess) | |
1391 | | (low >> (HOST_BITS_PER_WIDE_INT / 3 * 3))); | |
1392 | unsigned HOST_WIDE_INT end | |
1393 | = low & (((HOST_WIDE_INT) 1 << (HOST_BITS_PER_WIDE_INT / 3 * 3)) - 1); | |
00fe048c | 1394 | fprintf (asmfile, "%o%01o", beg, middle); |
0d92cbff | 1395 | print_octal (end, HOST_BITS_PER_WIDE_INT / 3); |
00fe048c RS |
1396 | } |
1397 | } | |
1398 | ||
1399 | static void | |
1400 | print_octal (value, digits) | |
0d92cbff | 1401 | unsigned HOST_WIDE_INT value; |
00fe048c RS |
1402 | int digits; |
1403 | { | |
1404 | int i; | |
1405 | ||
1406 | for (i = digits - 1; i >= 0; i--) | |
1407 | fprintf (asmfile, "%01o", ((value >> (3 * i)) & 7)); | |
1408 | } | |
1409 | ||
1410 | /* Output the name of type TYPE, with no punctuation. | |
1411 | Such names can be set up either by typedef declarations | |
1412 | or by struct, enum and union tags. */ | |
1413 | ||
1414 | static void | |
1415 | dbxout_type_name (type) | |
1416 | register tree type; | |
1417 | { | |
1418 | tree t; | |
1419 | if (TYPE_NAME (type) == 0) | |
1420 | abort (); | |
1421 | if (TREE_CODE (TYPE_NAME (type)) == IDENTIFIER_NODE) | |
1422 | { | |
1423 | t = TYPE_NAME (type); | |
1424 | } | |
1425 | else if (TREE_CODE (TYPE_NAME (type)) == TYPE_DECL) | |
1426 | { | |
1427 | t = DECL_NAME (TYPE_NAME (type)); | |
1428 | } | |
1429 | else | |
1430 | abort (); | |
1431 | ||
1432 | fprintf (asmfile, "%s", IDENTIFIER_POINTER (t)); | |
1433 | CHARS (IDENTIFIER_LENGTH (t)); | |
1434 | } | |
1435 | \f | |
1436 | /* Output a .stabs for the symbol defined by DECL, | |
1437 | which must be a ..._DECL node in the normal namespace. | |
1438 | It may be a CONST_DECL, a FUNCTION_DECL, a PARM_DECL or a VAR_DECL. | |
1439 | LOCAL is nonzero if the scope is less than the entire file. */ | |
1440 | ||
1441 | void | |
1442 | dbxout_symbol (decl, local) | |
1443 | tree decl; | |
1444 | int local; | |
1445 | { | |
1446 | int letter = 0; | |
1447 | tree type = TREE_TYPE (decl); | |
1448 | tree context = NULL_TREE; | |
1449 | int regno = -1; | |
1450 | ||
1451 | /* Cast avoids warning in old compilers. */ | |
1452 | current_sym_code = (STAB_CODE_TYPE) 0; | |
1453 | current_sym_value = 0; | |
1454 | current_sym_addr = 0; | |
1455 | ||
1456 | /* Ignore nameless syms, but don't ignore type tags. */ | |
1457 | ||
1458 | if ((DECL_NAME (decl) == 0 && TREE_CODE (decl) != TYPE_DECL) | |
1459 | || DECL_IGNORED_P (decl)) | |
1460 | return; | |
1461 | ||
1462 | dbxout_prepare_symbol (decl); | |
1463 | ||
1464 | /* The output will always start with the symbol name, | |
1465 | so always count that in the length-output-so-far. */ | |
1466 | ||
1467 | if (DECL_NAME (decl) != 0) | |
1468 | current_sym_nchars = 2 + IDENTIFIER_LENGTH (DECL_NAME (decl)); | |
1469 | ||
1470 | switch (TREE_CODE (decl)) | |
1471 | { | |
1472 | case CONST_DECL: | |
1473 | /* Enum values are defined by defining the enum type. */ | |
1474 | break; | |
1475 | ||
1476 | case FUNCTION_DECL: | |
1477 | if (DECL_RTL (decl) == 0) | |
1478 | return; | |
0924ddef | 1479 | if (DECL_EXTERNAL (decl)) |
00fe048c RS |
1480 | break; |
1481 | /* Don't mention a nested function under its parent. */ | |
1482 | context = decl_function_context (decl); | |
1483 | if (context == current_function_decl) | |
1484 | break; | |
1485 | if (GET_CODE (DECL_RTL (decl)) != MEM | |
1486 | || GET_CODE (XEXP (DECL_RTL (decl), 0)) != SYMBOL_REF) | |
1487 | break; | |
1488 | FORCE_TEXT; | |
1489 | ||
1490 | fprintf (asmfile, "%s \"%s:%c", ASM_STABS_OP, | |
1491 | IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl)), | |
1492 | TREE_PUBLIC (decl) ? 'F' : 'f'); | |
1493 | ||
1494 | current_sym_code = N_FUN; | |
1495 | current_sym_addr = XEXP (DECL_RTL (decl), 0); | |
1496 | ||
1497 | if (TREE_TYPE (type)) | |
3a7587e4 | 1498 | dbxout_type (TREE_TYPE (type), 0, 0); |
00fe048c | 1499 | else |
3a7587e4 | 1500 | dbxout_type (void_type_node, 0, 0); |
00fe048c RS |
1501 | |
1502 | /* For a nested function, when that function is compiled, | |
1503 | mention the containing function name | |
1504 | as well as (since dbx wants it) our own assembler-name. */ | |
1505 | if (context != 0) | |
1506 | fprintf (asmfile, ",%s,%s", | |
1507 | IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl)), | |
1508 | IDENTIFIER_POINTER (DECL_NAME (context))); | |
1509 | ||
1510 | dbxout_finish_symbol (decl); | |
1511 | break; | |
1512 | ||
1513 | case TYPE_DECL: | |
1514 | #if 0 | |
1515 | /* This seems all wrong. Outputting most kinds of types gives no name | |
1516 | at all. A true definition gives no name; a cross-ref for a | |
1517 | structure can give the tag name, but not a type name. | |
1518 | It seems that no typedef name is defined by outputting a type. */ | |
1519 | ||
1520 | /* If this typedef name was defined by outputting the type, | |
1521 | don't duplicate it. */ | |
1522 | if (typevec[TYPE_SYMTAB_ADDRESS (type)] == TYPE_DEFINED | |
1523 | && TYPE_NAME (TREE_TYPE (decl)) == decl) | |
1524 | return; | |
1525 | #endif | |
1526 | /* Don't output the same typedef twice. | |
1527 | And don't output what language-specific stuff doesn't want output. */ | |
1528 | if (TREE_ASM_WRITTEN (decl) || DECL_IGNORED_P (decl)) | |
1529 | return; | |
1530 | ||
1531 | FORCE_TEXT; | |
1532 | ||
a823f1d8 RS |
1533 | { |
1534 | int tag_needed = 1; | |
3b6c7a7d | 1535 | int did_output = 0; |
25bdb910 | 1536 | |
a823f1d8 RS |
1537 | if (DECL_NAME (decl)) |
1538 | { | |
1539 | /* Nonzero means we must output a tag as well as a typedef. */ | |
1540 | tag_needed = 0; | |
00fe048c | 1541 | |
edbe40ea RS |
1542 | /* Handle the case of a C++ structure or union |
1543 | where the TYPE_NAME is a TYPE_DECL | |
1544 | which gives both a typedef name and a tag. */ | |
bed7dc7a | 1545 | /* dbx requires the tag first and the typedef second. */ |
edbe40ea | 1546 | if ((TREE_CODE (type) == RECORD_TYPE |
c1b98a95 RK |
1547 | || TREE_CODE (type) == UNION_TYPE |
1548 | || TREE_CODE (type) == QUAL_UNION_TYPE) | |
edbe40ea | 1549 | && TYPE_NAME (type) == decl |
196cedd0 | 1550 | && !(use_gnu_debug_info_extensions && have_used_extensions) |
bed7dc7a RS |
1551 | && !TREE_ASM_WRITTEN (TYPE_NAME (type)) |
1552 | /* Distinguish the implicit typedefs of C++ | |
1553 | from explicit ones that might be found in C. */ | |
1554 | && DECL_SOURCE_LINE (decl) == 0) | |
edbe40ea RS |
1555 | { |
1556 | tree name = TYPE_NAME (type); | |
1557 | if (TREE_CODE (name) == TYPE_DECL) | |
1558 | name = DECL_NAME (name); | |
1559 | ||
1560 | current_sym_code = DBX_TYPE_DECL_STABS_CODE; | |
1561 | current_sym_value = 0; | |
1562 | current_sym_addr = 0; | |
1563 | current_sym_nchars = 2 + IDENTIFIER_LENGTH (name); | |
1564 | ||
1565 | fprintf (asmfile, "%s \"%s:T", ASM_STABS_OP, | |
1566 | IDENTIFIER_POINTER (name)); | |
1567 | dbxout_type (type, 1, 0); | |
0d92cbff | 1568 | dbxout_finish_symbol (NULL_TREE); |
edbe40ea RS |
1569 | } |
1570 | ||
a823f1d8 RS |
1571 | /* Output typedef name. */ |
1572 | fprintf (asmfile, "%s \"%s:", ASM_STABS_OP, | |
1573 | IDENTIFIER_POINTER (DECL_NAME (decl))); | |
25bdb910 | 1574 | |
a823f1d8 RS |
1575 | /* Short cut way to output a tag also. */ |
1576 | if ((TREE_CODE (type) == RECORD_TYPE | |
c1b98a95 RK |
1577 | || TREE_CODE (type) == UNION_TYPE |
1578 | || TREE_CODE (type) == QUAL_UNION_TYPE) | |
a823f1d8 RS |
1579 | && TYPE_NAME (type) == decl) |
1580 | { | |
196cedd0 | 1581 | if (use_gnu_debug_info_extensions && have_used_extensions) |
a823f1d8 RS |
1582 | { |
1583 | putc ('T', asmfile); | |
1584 | TREE_ASM_WRITTEN (TYPE_NAME (type)) = 1; | |
1585 | } | |
edbe40ea | 1586 | #if 0 /* Now we generate the tag for this case up above. */ |
a823f1d8 RS |
1587 | else |
1588 | tag_needed = 1; | |
edbe40ea | 1589 | #endif |
a823f1d8 | 1590 | } |
00fe048c | 1591 | |
a823f1d8 | 1592 | putc ('t', asmfile); |
01e2750c | 1593 | current_sym_code = DBX_TYPE_DECL_STABS_CODE; |
25bdb910 | 1594 | |
a823f1d8 RS |
1595 | dbxout_type (type, 1, 0); |
1596 | dbxout_finish_symbol (decl); | |
3b6c7a7d | 1597 | did_output = 1; |
a823f1d8 | 1598 | } |
00fe048c | 1599 | |
98ed4b49 JW |
1600 | /* Don't output a tag if this is an incomplete type (TYPE_SIZE is |
1601 | zero). This prevents the sun4 Sun OS 4.x dbx from crashing. */ | |
1602 | ||
1603 | if (tag_needed && TYPE_NAME (type) != 0 && TYPE_SIZE (type) != 0 | |
a823f1d8 RS |
1604 | && !TREE_ASM_WRITTEN (TYPE_NAME (type))) |
1605 | { | |
1606 | /* For a TYPE_DECL with no name, but the type has a name, | |
1607 | output a tag. | |
1608 | This is what represents `struct foo' with no typedef. */ | |
1609 | /* In C++, the name of a type is the corresponding typedef. | |
1610 | In C, it is an IDENTIFIER_NODE. */ | |
1611 | tree name = TYPE_NAME (type); | |
1612 | if (TREE_CODE (name) == TYPE_DECL) | |
1613 | name = DECL_NAME (name); | |
1614 | ||
01e2750c | 1615 | current_sym_code = DBX_TYPE_DECL_STABS_CODE; |
a823f1d8 RS |
1616 | current_sym_value = 0; |
1617 | current_sym_addr = 0; | |
1618 | current_sym_nchars = 2 + IDENTIFIER_LENGTH (name); | |
1619 | ||
1620 | fprintf (asmfile, "%s \"%s:T", ASM_STABS_OP, | |
1621 | IDENTIFIER_POINTER (name)); | |
1622 | dbxout_type (type, 1, 0); | |
0d92cbff | 1623 | dbxout_finish_symbol (NULL_TREE); |
3b6c7a7d RS |
1624 | did_output = 1; |
1625 | } | |
1626 | ||
1627 | /* If an enum type has no name, it cannot be referred to, | |
1628 | but we must output it anyway, since the enumeration constants | |
1629 | can be referred to. */ | |
1630 | if (!did_output && TREE_CODE (type) == ENUMERAL_TYPE) | |
1631 | { | |
1632 | current_sym_code = DBX_TYPE_DECL_STABS_CODE; | |
1633 | current_sym_value = 0; | |
1634 | current_sym_addr = 0; | |
1635 | current_sym_nchars = 2; | |
1636 | ||
a63067c2 RS |
1637 | /* Some debuggers fail when given NULL names, so give this a |
1638 | harmless name of ` '. */ | |
1639 | fprintf (asmfile, "%s \" :T", ASM_STABS_OP); | |
3b6c7a7d RS |
1640 | dbxout_type (type, 1, 0); |
1641 | dbxout_finish_symbol (NULL_TREE); | |
a823f1d8 RS |
1642 | } |
1643 | ||
1644 | /* Prevent duplicate output of a typedef. */ | |
1645 | TREE_ASM_WRITTEN (decl) = 1; | |
1646 | break; | |
1647 | } | |
00fe048c RS |
1648 | |
1649 | case PARM_DECL: | |
1650 | /* Parm decls go in their own separate chains | |
1651 | and are output by dbxout_reg_parms and dbxout_parms. */ | |
1652 | abort (); | |
1653 | ||
1654 | case RESULT_DECL: | |
1655 | /* Named return value, treat like a VAR_DECL. */ | |
1656 | case VAR_DECL: | |
1657 | if (DECL_RTL (decl) == 0) | |
1658 | return; | |
1659 | /* Don't mention a variable that is external. | |
1660 | Let the file that defines it describe it. */ | |
0924ddef | 1661 | if (DECL_EXTERNAL (decl)) |
00fe048c RS |
1662 | break; |
1663 | ||
1664 | /* If the variable is really a constant | |
1665 | and not written in memory, inform the debugger. */ | |
1666 | if (TREE_STATIC (decl) && TREE_READONLY (decl) | |
1667 | && DECL_INITIAL (decl) != 0 | |
1668 | && ! TREE_ASM_WRITTEN (decl) | |
1669 | && (DECL_FIELD_CONTEXT (decl) == NULL_TREE | |
1670 | || TREE_CODE (DECL_FIELD_CONTEXT (decl)) == BLOCK)) | |
1671 | { | |
1672 | if (TREE_PUBLIC (decl) == 0) | |
1673 | { | |
1674 | /* The sun4 assembler does not grok this. */ | |
1675 | char *name = IDENTIFIER_POINTER (DECL_NAME (decl)); | |
1676 | if (TREE_CODE (TREE_TYPE (decl)) == INTEGER_TYPE | |
1677 | || TREE_CODE (TREE_TYPE (decl)) == ENUMERAL_TYPE) | |
1678 | { | |
0d92cbff | 1679 | HOST_WIDE_INT ival = TREE_INT_CST_LOW (DECL_INITIAL (decl)); |
00fe048c RS |
1680 | #ifdef DBX_OUTPUT_CONSTANT_SYMBOL |
1681 | DBX_OUTPUT_CONSTANT_SYMBOL (asmfile, name, ival); | |
1682 | #else | |
1683 | fprintf (asmfile, "%s \"%s:c=i%d\",0x%x,0,0,0\n", | |
1684 | ASM_STABS_OP, name, ival, N_LSYM); | |
1685 | #endif | |
1686 | return; | |
1687 | } | |
1688 | else if (TREE_CODE (TREE_TYPE (decl)) == REAL_TYPE) | |
1689 | { | |
1690 | /* don't know how to do this yet. */ | |
1691 | } | |
1692 | break; | |
1693 | } | |
1694 | /* else it is something we handle like a normal variable. */ | |
1695 | } | |
1696 | ||
bece5e07 | 1697 | DECL_RTL (decl) = eliminate_regs (DECL_RTL (decl), 0, NULL_RTX); |
00fe048c RS |
1698 | #ifdef LEAF_REG_REMAP |
1699 | if (leaf_function) | |
1700 | leaf_renumber_regs_insn (DECL_RTL (decl)); | |
1701 | #endif | |
1702 | ||
47700802 RS |
1703 | dbxout_symbol_location (decl, type, 0, DECL_RTL (decl)); |
1704 | } | |
1705 | } | |
1706 | \f | |
1707 | /* Output the stab for DECL, a VAR_DECL, RESULT_DECL or PARM_DECL. | |
1708 | Add SUFFIX to its name, if SUFFIX is not 0. | |
1709 | Describe the variable as residing in HOME | |
1710 | (usually HOME is DECL_RTL (DECL), but not always). */ | |
1711 | ||
1712 | static void | |
1713 | dbxout_symbol_location (decl, type, suffix, home) | |
1714 | tree decl, type; | |
1715 | char *suffix; | |
1716 | rtx home; | |
1717 | { | |
1718 | int letter = 0; | |
1719 | int regno = -1; | |
00fe048c | 1720 | |
47700802 RS |
1721 | /* Don't mention a variable at all |
1722 | if it was completely optimized into nothingness. | |
1723 | ||
1724 | If the decl was from an inline function, then it's rtl | |
1725 | is not identically the rtl that was used in this | |
1726 | particular compilation. */ | |
1727 | if (GET_CODE (home) == REG) | |
1728 | { | |
1729 | regno = REGNO (home); | |
1730 | if (regno >= FIRST_PSEUDO_REGISTER) | |
1731 | return; | |
1732 | } | |
1733 | else if (GET_CODE (home) == SUBREG) | |
1734 | { | |
1735 | rtx value = home; | |
1736 | int offset = 0; | |
1737 | while (GET_CODE (value) == SUBREG) | |
1738 | { | |
1739 | offset += SUBREG_WORD (value); | |
1740 | value = SUBREG_REG (value); | |
1741 | } | |
1742 | if (GET_CODE (value) == REG) | |
00fe048c | 1743 | { |
47700802 | 1744 | regno = REGNO (value); |
00fe048c | 1745 | if (regno >= FIRST_PSEUDO_REGISTER) |
1527c38f | 1746 | return; |
47700802 | 1747 | regno += offset; |
00fe048c | 1748 | } |
47700802 RS |
1749 | alter_subreg (home); |
1750 | } | |
1751 | ||
1752 | /* The kind-of-variable letter depends on where | |
1753 | the variable is and on the scope of its name: | |
1754 | G and N_GSYM for static storage and global scope, | |
1755 | S for static storage and file scope, | |
1756 | V for static storage and local scope, | |
1757 | for those two, use N_LCSYM if data is in bss segment, | |
1758 | N_STSYM if in data segment, N_FUN otherwise. | |
1759 | (We used N_FUN originally, then changed to N_STSYM | |
1760 | to please GDB. However, it seems that confused ld. | |
1761 | Now GDB has been fixed to like N_FUN, says Kingdon.) | |
1762 | no letter at all, and N_LSYM, for auto variable, | |
1763 | r and N_RSYM for register variable. */ | |
1764 | ||
1765 | if (GET_CODE (home) == MEM | |
1766 | && GET_CODE (XEXP (home, 0)) == SYMBOL_REF) | |
1767 | { | |
1768 | if (TREE_PUBLIC (decl)) | |
00fe048c | 1769 | { |
47700802 RS |
1770 | letter = 'G'; |
1771 | current_sym_code = N_GSYM; | |
00fe048c | 1772 | } |
47700802 | 1773 | else |
00fe048c | 1774 | { |
47700802 | 1775 | current_sym_addr = XEXP (home, 0); |
00fe048c | 1776 | |
47700802 | 1777 | letter = decl_function_context (decl) ? 'V' : 'S'; |
00fe048c | 1778 | |
47700802 RS |
1779 | if (!DECL_INITIAL (decl)) |
1780 | current_sym_code = N_LCSYM; | |
cadcc1c1 | 1781 | else if (in_text_section ()) |
47700802 RS |
1782 | /* This is not quite right, but it's the closest |
1783 | of all the codes that Unix defines. */ | |
1784 | current_sym_code = DBX_STATIC_CONST_VAR_CODE; | |
1785 | else | |
1786 | { | |
1787 | /* Ultrix `as' seems to need this. */ | |
00fe048c | 1788 | #ifdef DBX_STATIC_STAB_DATA_SECTION |
47700802 | 1789 | data_section (); |
00fe048c | 1790 | #endif |
47700802 | 1791 | current_sym_code = N_STSYM; |
00fe048c RS |
1792 | } |
1793 | } | |
47700802 RS |
1794 | } |
1795 | else if (regno >= 0) | |
1796 | { | |
1797 | letter = 'r'; | |
1798 | current_sym_code = N_RSYM; | |
1799 | current_sym_value = DBX_REGISTER_NUMBER (regno); | |
1800 | } | |
1801 | else if (GET_CODE (home) == MEM | |
1802 | && (GET_CODE (XEXP (home, 0)) == MEM | |
1803 | || (GET_CODE (XEXP (home, 0)) == REG | |
804f56d8 | 1804 | && REGNO (XEXP (home, 0)) != HARD_FRAME_POINTER_REGNUM))) |
47700802 RS |
1805 | /* If the value is indirect by memory or by a register |
1806 | that isn't the frame pointer | |
1807 | then it means the object is variable-sized and address through | |
1808 | that register or stack slot. DBX has no way to represent this | |
1809 | so all we can do is output the variable as a pointer. | |
1810 | If it's not a parameter, ignore it. | |
1811 | (VAR_DECLs like this can be made by integrate.c.) */ | |
1812 | { | |
1813 | if (GET_CODE (XEXP (home, 0)) == REG) | |
00fe048c RS |
1814 | { |
1815 | letter = 'r'; | |
1816 | current_sym_code = N_RSYM; | |
47700802 | 1817 | current_sym_value = DBX_REGISTER_NUMBER (REGNO (XEXP (home, 0))); |
00fe048c | 1818 | } |
47700802 | 1819 | else |
00fe048c RS |
1820 | { |
1821 | current_sym_code = N_LSYM; | |
47700802 | 1822 | /* RTL looks like (MEM (MEM (PLUS (REG...) (CONST_INT...)))). |
00fe048c | 1823 | We want the value of that CONST_INT. */ |
47700802 RS |
1824 | current_sym_value |
1825 | = DEBUGGER_AUTO_OFFSET (XEXP (XEXP (home, 0), 0)); | |
b372168c | 1826 | } |
47700802 RS |
1827 | |
1828 | /* Effectively do build_pointer_type, but don't cache this type, | |
1829 | since it might be temporary whereas the type it points to | |
1830 | might have been saved for inlining. */ | |
1831 | /* Don't use REFERENCE_TYPE because dbx can't handle that. */ | |
1832 | type = make_node (POINTER_TYPE); | |
1833 | TREE_TYPE (type) = TREE_TYPE (decl); | |
1834 | } | |
1835 | else if (GET_CODE (home) == MEM | |
1836 | && GET_CODE (XEXP (home, 0)) == REG) | |
1837 | { | |
1838 | current_sym_code = N_LSYM; | |
1839 | current_sym_value = DEBUGGER_AUTO_OFFSET (XEXP (home, 0)); | |
1840 | } | |
1841 | else if (GET_CODE (home) == MEM | |
1842 | && GET_CODE (XEXP (home, 0)) == PLUS | |
1843 | && GET_CODE (XEXP (XEXP (home, 0), 1)) == CONST_INT) | |
1844 | { | |
1845 | current_sym_code = N_LSYM; | |
1846 | /* RTL looks like (MEM (PLUS (REG...) (CONST_INT...))) | |
1847 | We want the value of that CONST_INT. */ | |
1848 | current_sym_value = DEBUGGER_AUTO_OFFSET (XEXP (home, 0)); | |
1849 | } | |
1850 | else if (GET_CODE (home) == MEM | |
1851 | && GET_CODE (XEXP (home, 0)) == CONST) | |
1852 | { | |
1853 | /* Handle an obscure case which can arise when optimizing and | |
1854 | when there are few available registers. (This is *always* | |
1855 | the case for i386/i486 targets). The RTL looks like | |
1856 | (MEM (CONST ...)) even though this variable is a local `auto' | |
1857 | or a local `register' variable. In effect, what has happened | |
1858 | is that the reload pass has seen that all assignments and | |
1859 | references for one such a local variable can be replaced by | |
1860 | equivalent assignments and references to some static storage | |
1861 | variable, thereby avoiding the need for a register. In such | |
1862 | cases we're forced to lie to debuggers and tell them that | |
1863 | this variable was itself `static'. */ | |
1864 | current_sym_code = N_LCSYM; | |
1865 | letter = 'V'; | |
1866 | current_sym_addr = XEXP (XEXP (home, 0), 0); | |
1867 | } | |
1868 | else if (GET_CODE (home) == CONCAT) | |
1869 | { | |
1870 | tree subtype = TREE_TYPE (type); | |
1871 | ||
1872 | /* If the variable's storage is in two parts, | |
1873 | output each as a separate stab with a modified name. */ | |
1874 | if (WORDS_BIG_ENDIAN) | |
1875 | dbxout_symbol_location (decl, subtype, "$imag", XEXP (home, 0)); | |
00fe048c | 1876 | else |
47700802 | 1877 | dbxout_symbol_location (decl, subtype, "$real", XEXP (home, 0)); |
00fe048c | 1878 | |
47700802 RS |
1879 | /* Cast avoids warning in old compilers. */ |
1880 | current_sym_code = (STAB_CODE_TYPE) 0; | |
1881 | current_sym_value = 0; | |
1882 | current_sym_addr = 0; | |
1883 | dbxout_prepare_symbol (decl); | |
1884 | ||
1885 | if (WORDS_BIG_ENDIAN) | |
1886 | dbxout_symbol_location (decl, subtype, "$real", XEXP (home, 1)); | |
1887 | else | |
1888 | dbxout_symbol_location (decl, subtype, "$imag", XEXP (home, 1)); | |
1889 | return; | |
1890 | } | |
1891 | else | |
1892 | /* Address might be a MEM, when DECL is a variable-sized object. | |
1893 | Or it might be const0_rtx, meaning previous passes | |
1894 | want us to ignore this variable. */ | |
1895 | return; | |
1896 | ||
1897 | /* Ok, start a symtab entry and output the variable name. */ | |
1898 | FORCE_TEXT; | |
b372168c MM |
1899 | |
1900 | #ifdef DBX_STATIC_BLOCK_START | |
47700802 | 1901 | DBX_STATIC_BLOCK_START (asmfile, current_sym_code); |
b372168c MM |
1902 | #endif |
1903 | ||
47700802 RS |
1904 | dbxout_symbol_name (decl, suffix, letter); |
1905 | dbxout_type (type, 0, 0); | |
1906 | dbxout_finish_symbol (decl); | |
b372168c MM |
1907 | |
1908 | #ifdef DBX_STATIC_BLOCK_END | |
47700802 | 1909 | DBX_STATIC_BLOCK_END (asmfile, current_sym_code); |
b372168c | 1910 | #endif |
47700802 RS |
1911 | } |
1912 | \f | |
1913 | /* Output the symbol name of DECL for a stabs, with suffix SUFFIX. | |
1914 | Then output LETTER to indicate the kind of location the symbol has. */ | |
1915 | ||
1916 | static void | |
1917 | dbxout_symbol_name (decl, suffix, letter) | |
1918 | tree decl; | |
1919 | char *suffix; | |
1920 | int letter; | |
1921 | { | |
1922 | /* One slight hitch: if this is a VAR_DECL which is a static | |
1923 | class member, we must put out the mangled name instead of the | |
1924 | DECL_NAME. */ | |
1925 | ||
1926 | char *name; | |
1927 | /* Note also that static member (variable) names DO NOT begin | |
1928 | with underscores in .stabs directives. */ | |
1929 | if (DECL_LANG_SPECIFIC (decl)) | |
1930 | name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl)); | |
1931 | else | |
1932 | name = IDENTIFIER_POINTER (DECL_NAME (decl)); | |
1933 | if (name == 0) | |
1934 | name = "(anon)"; | |
1935 | fprintf (asmfile, "%s \"%s%s:", ASM_STABS_OP, name, | |
1936 | (suffix ? suffix : "")); | |
1937 | ||
1938 | if (letter) putc (letter, asmfile); | |
00fe048c RS |
1939 | } |
1940 | ||
1941 | static void | |
1942 | dbxout_prepare_symbol (decl) | |
1943 | tree decl; | |
1944 | { | |
1945 | #ifdef WINNING_GDB | |
1946 | char *filename = DECL_SOURCE_FILE (decl); | |
1947 | ||
1948 | dbxout_source_file (asmfile, filename); | |
1949 | #endif | |
1950 | } | |
1951 | ||
1952 | static void | |
1953 | dbxout_finish_symbol (sym) | |
1954 | tree sym; | |
1955 | { | |
b372168c MM |
1956 | #ifdef DBX_FINISH_SYMBOL |
1957 | DBX_FINISH_SYMBOL (sym); | |
1958 | #else | |
00fe048c | 1959 | int line = 0; |
fcf956c0 | 1960 | if (use_gnu_debug_info_extensions && sym != 0) |
00fe048c | 1961 | line = DECL_SOURCE_LINE (sym); |
b372168c | 1962 | |
00fe048c RS |
1963 | fprintf (asmfile, "\",%d,0,%d,", current_sym_code, line); |
1964 | if (current_sym_addr) | |
1965 | output_addr_const (asmfile, current_sym_addr); | |
1966 | else | |
1967 | fprintf (asmfile, "%d", current_sym_value); | |
1968 | putc ('\n', asmfile); | |
b372168c | 1969 | #endif |
00fe048c RS |
1970 | } |
1971 | ||
1972 | /* Output definitions of all the decls in a chain. */ | |
1973 | ||
b372168c | 1974 | void |
00fe048c RS |
1975 | dbxout_syms (syms) |
1976 | tree syms; | |
1977 | { | |
1978 | while (syms) | |
1979 | { | |
1980 | dbxout_symbol (syms, 1); | |
1981 | syms = TREE_CHAIN (syms); | |
1982 | } | |
1983 | } | |
1984 | \f | |
1985 | /* The following two functions output definitions of function parameters. | |
1986 | Each parameter gets a definition locating it in the parameter list. | |
1987 | Each parameter that is a register variable gets a second definition | |
1988 | locating it in the register. | |
1989 | ||
1990 | Printing or argument lists in gdb uses the definitions that | |
1991 | locate in the parameter list. But reference to the variable in | |
1992 | expressions uses preferentially the definition as a register. */ | |
1993 | ||
1994 | /* Output definitions, referring to storage in the parmlist, | |
1995 | of all the parms in PARMS, which is a chain of PARM_DECL nodes. */ | |
1996 | ||
b372168c | 1997 | void |
00fe048c RS |
1998 | dbxout_parms (parms) |
1999 | tree parms; | |
2000 | { | |
2001 | for (; parms; parms = TREE_CHAIN (parms)) | |
2002 | if (DECL_NAME (parms) && TREE_TYPE (parms) != error_mark_node) | |
2003 | { | |
2004 | dbxout_prepare_symbol (parms); | |
2005 | ||
2006 | /* Perform any necessary register eliminations on the parameter's rtl, | |
2007 | so that the debugging output will be accurate. */ | |
2008 | DECL_INCOMING_RTL (parms) | |
0d92cbff RK |
2009 | = eliminate_regs (DECL_INCOMING_RTL (parms), 0, NULL_RTX); |
2010 | DECL_RTL (parms) = eliminate_regs (DECL_RTL (parms), 0, NULL_RTX); | |
00fe048c RS |
2011 | #ifdef LEAF_REG_REMAP |
2012 | if (leaf_function) | |
2013 | { | |
2014 | leaf_renumber_regs_insn (DECL_INCOMING_RTL (parms)); | |
2015 | leaf_renumber_regs_insn (DECL_RTL (parms)); | |
2016 | } | |
2017 | #endif | |
2018 | ||
2019 | if (PARM_PASSED_IN_MEMORY (parms)) | |
2020 | { | |
2021 | rtx addr = XEXP (DECL_INCOMING_RTL (parms), 0); | |
2022 | ||
2023 | /* ??? Here we assume that the parm address is indexed | |
2024 | off the frame pointer or arg pointer. | |
2025 | If that is not true, we produce meaningless results, | |
2026 | but do not crash. */ | |
2027 | if (GET_CODE (addr) == PLUS | |
2028 | && GET_CODE (XEXP (addr, 1)) == CONST_INT) | |
2029 | current_sym_value = INTVAL (XEXP (addr, 1)); | |
2030 | else | |
2031 | current_sym_value = 0; | |
2032 | ||
2033 | current_sym_code = N_PSYM; | |
2034 | current_sym_addr = 0; | |
2035 | ||
2036 | FORCE_TEXT; | |
2037 | if (DECL_NAME (parms)) | |
2038 | { | |
2039 | current_sym_nchars = 2 + IDENTIFIER_LENGTH (DECL_NAME (parms)); | |
2040 | ||
01e2750c RS |
2041 | fprintf (asmfile, "%s \"%s:%c", ASM_STABS_OP, |
2042 | IDENTIFIER_POINTER (DECL_NAME (parms)), | |
2043 | DBX_MEMPARM_STABS_LETTER); | |
00fe048c RS |
2044 | } |
2045 | else | |
2046 | { | |
2047 | current_sym_nchars = 8; | |
01e2750c RS |
2048 | fprintf (asmfile, "%s \"(anon):%c", ASM_STABS_OP, |
2049 | DBX_MEMPARM_STABS_LETTER); | |
00fe048c RS |
2050 | } |
2051 | ||
2052 | if (GET_CODE (DECL_RTL (parms)) == REG | |
2053 | && REGNO (DECL_RTL (parms)) >= 0 | |
2054 | && REGNO (DECL_RTL (parms)) < FIRST_PSEUDO_REGISTER) | |
3a7587e4 | 2055 | dbxout_type (DECL_ARG_TYPE (parms), 0, 0); |
00fe048c RS |
2056 | else |
2057 | { | |
2058 | int original_value = current_sym_value; | |
2059 | ||
2060 | /* This is the case where the parm is passed as an int or double | |
2061 | and it is converted to a char, short or float and stored back | |
2062 | in the parmlist. In this case, describe the parm | |
2063 | with the variable's declared type, and adjust the address | |
2064 | if the least significant bytes (which we are using) are not | |
2065 | the first ones. */ | |
2066 | #if BYTES_BIG_ENDIAN | |
2067 | if (TREE_TYPE (parms) != DECL_ARG_TYPE (parms)) | |
2068 | current_sym_value += (GET_MODE_SIZE (TYPE_MODE (DECL_ARG_TYPE (parms))) | |
2069 | - GET_MODE_SIZE (GET_MODE (DECL_RTL (parms)))); | |
2070 | #endif | |
2071 | ||
2072 | if (GET_CODE (DECL_RTL (parms)) == MEM | |
2073 | && GET_CODE (XEXP (DECL_RTL (parms), 0)) == PLUS | |
2074 | && GET_CODE (XEXP (XEXP (DECL_RTL (parms), 0), 1)) == CONST_INT | |
2075 | && INTVAL (XEXP (XEXP (DECL_RTL (parms), 0), 1)) == current_sym_value) | |
3a7587e4 | 2076 | dbxout_type (TREE_TYPE (parms), 0, 0); |
00fe048c RS |
2077 | else |
2078 | { | |
2079 | current_sym_value = original_value; | |
3a7587e4 | 2080 | dbxout_type (DECL_ARG_TYPE (parms), 0, 0); |
00fe048c RS |
2081 | } |
2082 | } | |
2083 | current_sym_value = DEBUGGER_ARG_OFFSET (current_sym_value, addr); | |
2084 | dbxout_finish_symbol (parms); | |
2085 | } | |
2086 | else if (GET_CODE (DECL_RTL (parms)) == REG) | |
2087 | { | |
2088 | rtx best_rtl; | |
b372168c | 2089 | char regparm_letter; |
25b5c537 | 2090 | tree parm_type; |
00fe048c RS |
2091 | /* Parm passed in registers and lives in registers or nowhere. */ |
2092 | ||
b372168c MM |
2093 | current_sym_code = DBX_REGPARM_STABS_CODE; |
2094 | regparm_letter = DBX_REGPARM_STABS_LETTER; | |
00fe048c RS |
2095 | current_sym_addr = 0; |
2096 | ||
2097 | /* If parm lives in a register, use that register; | |
2098 | pretend the parm was passed there. It would be more consistent | |
2099 | to describe the register where the parm was passed, | |
25b5c537 JW |
2100 | but in practice that register usually holds something else. |
2101 | ||
2102 | If we use DECL_RTL, then we must use the declared type of | |
2103 | the variable, not the type that it arrived in. */ | |
00fe048c RS |
2104 | if (REGNO (DECL_RTL (parms)) >= 0 |
2105 | && REGNO (DECL_RTL (parms)) < FIRST_PSEUDO_REGISTER) | |
25b5c537 JW |
2106 | { |
2107 | best_rtl = DECL_RTL (parms); | |
2108 | parm_type = TREE_TYPE (parms); | |
2109 | } | |
00fe048c RS |
2110 | /* If the parm lives nowhere, |
2111 | use the register where it was passed. */ | |
2112 | else | |
25b5c537 JW |
2113 | { |
2114 | best_rtl = DECL_INCOMING_RTL (parms); | |
2115 | parm_type = DECL_ARG_TYPE (parms); | |
2116 | } | |
00fe048c RS |
2117 | current_sym_value = DBX_REGISTER_NUMBER (REGNO (best_rtl)); |
2118 | ||
2119 | FORCE_TEXT; | |
2120 | if (DECL_NAME (parms)) | |
2121 | { | |
2122 | current_sym_nchars = 2 + IDENTIFIER_LENGTH (DECL_NAME (parms)); | |
b372168c MM |
2123 | fprintf (asmfile, "%s \"%s:%c", ASM_STABS_OP, |
2124 | IDENTIFIER_POINTER (DECL_NAME (parms)), | |
2125 | regparm_letter); | |
00fe048c RS |
2126 | } |
2127 | else | |
2128 | { | |
2129 | current_sym_nchars = 8; | |
b372168c MM |
2130 | fprintf (asmfile, "%s \"(anon):%c", ASM_STABS_OP, |
2131 | regparm_letter); | |
00fe048c RS |
2132 | } |
2133 | ||
25b5c537 | 2134 | dbxout_type (parm_type, 0, 0); |
00fe048c RS |
2135 | dbxout_finish_symbol (parms); |
2136 | } | |
dad0145a | 2137 | else if (GET_CODE (DECL_RTL (parms)) == MEM |
4ee194ec RS |
2138 | && GET_CODE (XEXP (DECL_RTL (parms), 0)) == REG) |
2139 | /* && rtx_equal_p (XEXP (DECL_RTL (parms), 0), | |
2140 | DECL_INCOMING_RTL (parms))) */ | |
dad0145a RS |
2141 | { |
2142 | /* Parm was passed via invisible reference. | |
2143 | That is, its address was passed in a register. | |
2144 | Output it as if it lived in that register. | |
2145 | The debugger will know from the type | |
2146 | that it was actually passed by invisible reference. */ | |
2147 | ||
2148 | char regparm_letter; | |
2149 | /* Parm passed in registers and lives in registers or nowhere. */ | |
2150 | ||
2151 | current_sym_code = DBX_REGPARM_STABS_CODE; | |
2152 | regparm_letter = DBX_REGPARM_STABS_LETTER; | |
2153 | ||
2154 | /* DECL_RTL looks like (MEM (REG...). Get the register number. */ | |
2155 | current_sym_value = REGNO (XEXP (DECL_RTL (parms), 0)); | |
2156 | current_sym_addr = 0; | |
2157 | ||
2158 | FORCE_TEXT; | |
2159 | if (DECL_NAME (parms)) | |
2160 | { | |
2161 | current_sym_nchars = 2 + strlen (IDENTIFIER_POINTER (DECL_NAME (parms))); | |
2162 | ||
2163 | fprintf (asmfile, "%s \"%s:%c", ASM_STABS_OP, | |
2164 | IDENTIFIER_POINTER (DECL_NAME (parms)), | |
2165 | DBX_REGPARM_STABS_LETTER); | |
2166 | } | |
2167 | else | |
2168 | { | |
2169 | current_sym_nchars = 8; | |
2170 | fprintf (asmfile, "%s \"(anon):%c", ASM_STABS_OP, | |
2171 | DBX_REGPARM_STABS_LETTER); | |
2172 | } | |
2173 | ||
2174 | dbxout_type (TREE_TYPE (parms), 0, 0); | |
2175 | dbxout_finish_symbol (parms); | |
2176 | } | |
00fe048c | 2177 | else if (GET_CODE (DECL_RTL (parms)) == MEM |
8d291181 RS |
2178 | && XEXP (DECL_RTL (parms), 0) != const0_rtx |
2179 | /* ??? A constant address for a parm can happen | |
2180 | when the reg it lives in is equiv to a constant in memory. | |
2181 | Should make this not happen, after 2.4. */ | |
2182 | && ! CONSTANT_P (XEXP (DECL_RTL (parms), 0))) | |
00fe048c RS |
2183 | { |
2184 | /* Parm was passed in registers but lives on the stack. */ | |
2185 | ||
2186 | current_sym_code = N_PSYM; | |
2187 | /* DECL_RTL looks like (MEM (PLUS (REG...) (CONST_INT...))), | |
2188 | in which case we want the value of that CONST_INT, | |
2189 | or (MEM (REG ...)) or (MEM (MEM ...)), | |
2190 | in which case we use a value of zero. */ | |
2191 | if (GET_CODE (XEXP (DECL_RTL (parms), 0)) == REG | |
2192 | || GET_CODE (XEXP (DECL_RTL (parms), 0)) == MEM) | |
2193 | current_sym_value = 0; | |
2194 | else | |
2195 | current_sym_value = INTVAL (XEXP (XEXP (DECL_RTL (parms), 0), 1)); | |
2196 | current_sym_addr = 0; | |
2197 | ||
2198 | FORCE_TEXT; | |
2199 | if (DECL_NAME (parms)) | |
2200 | { | |
2201 | current_sym_nchars = 2 + strlen (IDENTIFIER_POINTER (DECL_NAME (parms))); | |
2202 | ||
01e2750c RS |
2203 | fprintf (asmfile, "%s \"%s:%c", ASM_STABS_OP, |
2204 | IDENTIFIER_POINTER (DECL_NAME (parms)), | |
2205 | DBX_MEMPARM_STABS_LETTER); | |
00fe048c RS |
2206 | } |
2207 | else | |
2208 | { | |
2209 | current_sym_nchars = 8; | |
01e2750c RS |
2210 | fprintf (asmfile, "%s \"(anon):%c", ASM_STABS_OP, |
2211 | DBX_MEMPARM_STABS_LETTER); | |
00fe048c RS |
2212 | } |
2213 | ||
2214 | current_sym_value | |
2215 | = DEBUGGER_ARG_OFFSET (current_sym_value, | |
2216 | XEXP (DECL_RTL (parms), 0)); | |
3a7587e4 | 2217 | dbxout_type (TREE_TYPE (parms), 0, 0); |
00fe048c RS |
2218 | dbxout_finish_symbol (parms); |
2219 | } | |
2220 | } | |
2221 | } | |
2222 | ||
2223 | /* Output definitions for the places where parms live during the function, | |
2224 | when different from where they were passed, when the parms were passed | |
2225 | in memory. | |
2226 | ||
2227 | It is not useful to do this for parms passed in registers | |
2228 | that live during the function in different registers, because it is | |
2229 | impossible to look in the passed register for the passed value, | |
2230 | so we use the within-the-function register to begin with. | |
2231 | ||
2232 | PARMS is a chain of PARM_DECL nodes. */ | |
2233 | ||
b372168c | 2234 | void |
00fe048c RS |
2235 | dbxout_reg_parms (parms) |
2236 | tree parms; | |
2237 | { | |
2238 | for (; parms; parms = TREE_CHAIN (parms)) | |
2239 | if (DECL_NAME (parms)) | |
2240 | { | |
2241 | dbxout_prepare_symbol (parms); | |
2242 | ||
2243 | /* Report parms that live in registers during the function | |
2244 | but were passed in memory. */ | |
2245 | if (GET_CODE (DECL_RTL (parms)) == REG | |
2246 | && REGNO (DECL_RTL (parms)) >= 0 | |
2247 | && REGNO (DECL_RTL (parms)) < FIRST_PSEUDO_REGISTER | |
2248 | && PARM_PASSED_IN_MEMORY (parms)) | |
47700802 RS |
2249 | dbxout_symbol_location (parms, TREE_TYPE (parms), |
2250 | 0, DECL_RTL (parms)); | |
2251 | else if (GET_CODE (DECL_RTL (parms)) == CONCAT | |
2252 | && PARM_PASSED_IN_MEMORY (parms)) | |
2253 | dbxout_symbol_location (parms, TREE_TYPE (parms), | |
2254 | 0, DECL_RTL (parms)); | |
00fe048c RS |
2255 | /* Report parms that live in memory but not where they were passed. */ |
2256 | else if (GET_CODE (DECL_RTL (parms)) == MEM | |
2257 | && GET_CODE (XEXP (DECL_RTL (parms), 0)) == PLUS | |
2258 | && GET_CODE (XEXP (XEXP (DECL_RTL (parms), 0), 1)) == CONST_INT | |
2259 | && PARM_PASSED_IN_MEMORY (parms) | |
2260 | && ! rtx_equal_p (DECL_RTL (parms), DECL_INCOMING_RTL (parms))) | |
2261 | { | |
2262 | #if 0 /* ??? It is not clear yet what should replace this. */ | |
2263 | int offset = DECL_OFFSET (parms) / BITS_PER_UNIT; | |
2264 | /* A parm declared char is really passed as an int, | |
2265 | so it occupies the least significant bytes. | |
2266 | On a big-endian machine those are not the low-numbered ones. */ | |
2267 | #if BYTES_BIG_ENDIAN | |
2268 | if (offset != -1 && TREE_TYPE (parms) != DECL_ARG_TYPE (parms)) | |
2269 | offset += (GET_MODE_SIZE (TYPE_MODE (DECL_ARG_TYPE (parms))) | |
2270 | - GET_MODE_SIZE (GET_MODE (DECL_RTL (parms)))); | |
2271 | #endif | |
2272 | if (INTVAL (XEXP (XEXP (DECL_RTL (parms), 0), 1)) != offset) {...} | |
2273 | #endif | |
47700802 RS |
2274 | dbxout_symbol_location (parms, TREE_TYPE (parms), |
2275 | 0, DECL_RTL (parms)); | |
00fe048c | 2276 | } |
4ee194ec RS |
2277 | #if 0 |
2278 | else if (GET_CODE (DECL_RTL (parms)) == MEM | |
2279 | && GET_CODE (XEXP (DECL_RTL (parms), 0)) == REG) | |
2280 | { | |
2281 | /* Parm was passed via invisible reference. | |
2282 | That is, its address was passed in a register. | |
2283 | Output it as if it lived in that register. | |
2284 | The debugger will know from the type | |
2285 | that it was actually passed by invisible reference. */ | |
2286 | ||
2287 | current_sym_code = N_RSYM; | |
2288 | ||
2289 | /* DECL_RTL looks like (MEM (REG...). Get the register number. */ | |
2290 | current_sym_value = REGNO (XEXP (DECL_RTL (parms), 0)); | |
2291 | current_sym_addr = 0; | |
2292 | ||
2293 | FORCE_TEXT; | |
2294 | if (DECL_NAME (parms)) | |
2295 | { | |
2296 | current_sym_nchars = 2 + strlen (IDENTIFIER_POINTER (DECL_NAME (parms))); | |
2297 | ||
2298 | fprintf (asmfile, "%s \"%s:r", ASM_STABS_OP, | |
2299 | IDENTIFIER_POINTER (DECL_NAME (parms))); | |
2300 | } | |
2301 | else | |
2302 | { | |
2303 | current_sym_nchars = 8; | |
2304 | fprintf (asmfile, "%s \"(anon):r", ASM_STABS_OP); | |
2305 | } | |
2306 | ||
2307 | dbxout_type (TREE_TYPE (parms), 0, 0); | |
2308 | dbxout_finish_symbol (parms); | |
2309 | } | |
2310 | #endif | |
00fe048c RS |
2311 | } |
2312 | } | |
2313 | \f | |
2314 | /* Given a chain of ..._TYPE nodes (as come in a parameter list), | |
2315 | output definitions of those names, in raw form */ | |
2316 | ||
2317 | void | |
2318 | dbxout_args (args) | |
2319 | tree args; | |
2320 | { | |
2321 | while (args) | |
2322 | { | |
2323 | putc (',', asmfile); | |
3a7587e4 | 2324 | dbxout_type (TREE_VALUE (args), 0, 0); |
00fe048c RS |
2325 | CHARS (1); |
2326 | args = TREE_CHAIN (args); | |
2327 | } | |
2328 | } | |
2329 | \f | |
2330 | /* Given a chain of ..._TYPE nodes, | |
2331 | find those which have typedef names and output those names. | |
2332 | This is to ensure those types get output. */ | |
2333 | ||
2334 | void | |
2335 | dbxout_types (types) | |
2336 | register tree types; | |
2337 | { | |
2338 | while (types) | |
2339 | { | |
2340 | if (TYPE_NAME (types) | |
2341 | && TREE_CODE (TYPE_NAME (types)) == TYPE_DECL | |
2342 | && ! TREE_ASM_WRITTEN (TYPE_NAME (types))) | |
2343 | dbxout_symbol (TYPE_NAME (types), 1); | |
2344 | types = TREE_CHAIN (types); | |
2345 | } | |
2346 | } | |
2347 | \f | |
2348 | /* Output everything about a symbol block (a BLOCK node | |
2349 | that represents a scope level), | |
2350 | including recursive output of contained blocks. | |
2351 | ||
2352 | BLOCK is the BLOCK node. | |
2353 | DEPTH is its depth within containing symbol blocks. | |
2354 | ARGS is usually zero; but for the outermost block of the | |
2355 | body of a function, it is a chain of PARM_DECLs for the function parameters. | |
2356 | We output definitions of all the register parms | |
2357 | as if they were local variables of that block. | |
2358 | ||
2359 | If -g1 was used, we count blocks just the same, but output nothing | |
2360 | except for the outermost block. | |
2361 | ||
2362 | Actually, BLOCK may be several blocks chained together. | |
2363 | We handle them all in sequence. */ | |
2364 | ||
2365 | static void | |
2366 | dbxout_block (block, depth, args) | |
2367 | register tree block; | |
2368 | int depth; | |
2369 | tree args; | |
2370 | { | |
2371 | int blocknum; | |
2372 | ||
2373 | while (block) | |
2374 | { | |
2375 | /* Ignore blocks never expanded or otherwise marked as real. */ | |
2376 | if (TREE_USED (block)) | |
2377 | { | |
2378 | #ifndef DBX_LBRAC_FIRST | |
2379 | /* In dbx format, the syms of a block come before the N_LBRAC. */ | |
2380 | if (debug_info_level != DINFO_LEVEL_TERSE || depth == 0) | |
2381 | dbxout_syms (BLOCK_VARS (block)); | |
2382 | if (args) | |
2383 | dbxout_reg_parms (args); | |
2384 | #endif | |
2385 | ||
2386 | /* Now output an N_LBRAC symbol to represent the beginning of | |
2387 | the block. Use the block's tree-walk order to generate | |
2388 | the assembler symbols LBBn and LBEn | |
2389 | that final will define around the code in this block. */ | |
2390 | if (depth > 0 && debug_info_level != DINFO_LEVEL_TERSE) | |
2391 | { | |
2392 | char buf[20]; | |
2393 | blocknum = next_block_number++; | |
2394 | ASM_GENERATE_INTERNAL_LABEL (buf, "LBB", blocknum); | |
2395 | ||
2396 | if (BLOCK_HANDLER_BLOCK (block)) | |
2397 | { | |
2398 | /* A catch block. Must precede N_LBRAC. */ | |
2399 | tree decl = BLOCK_VARS (block); | |
2400 | while (decl) | |
2401 | { | |
2402 | #ifdef DBX_OUTPUT_CATCH | |
2403 | DBX_OUTPUT_CATCH (asmfile, decl, buf); | |
2404 | #else | |
b372168c | 2405 | fprintf (asmfile, "%s \"%s:C1\",%d,0,0,", ASM_STABS_OP, |
00fe048c RS |
2406 | IDENTIFIER_POINTER (DECL_NAME (decl)), N_CATCH); |
2407 | assemble_name (asmfile, buf); | |
2408 | fprintf (asmfile, "\n"); | |
2409 | #endif | |
2410 | decl = TREE_CHAIN (decl); | |
2411 | } | |
2412 | } | |
2413 | ||
01e2750c RS |
2414 | #ifdef DBX_OUTPUT_LBRAC |
2415 | DBX_OUTPUT_LBRAC (asmfile, buf); | |
2416 | #else | |
00fe048c RS |
2417 | fprintf (asmfile, "%s %d,0,0,", ASM_STABN_OP, N_LBRAC); |
2418 | assemble_name (asmfile, buf); | |
01571284 RS |
2419 | #if DBX_BLOCKS_FUNCTION_RELATIVE |
2420 | fputc ('-', asmfile); | |
ce343979 | 2421 | assemble_name (asmfile, XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0)); |
01571284 | 2422 | #endif |
00fe048c | 2423 | fprintf (asmfile, "\n"); |
01e2750c | 2424 | #endif |
00fe048c RS |
2425 | } |
2426 | else if (depth > 0) | |
2427 | /* Count blocks the same way regardless of debug_info_level. */ | |
2428 | next_block_number++; | |
2429 | ||
2430 | #ifdef DBX_LBRAC_FIRST | |
2431 | /* On some weird machines, the syms of a block | |
2432 | come after the N_LBRAC. */ | |
2433 | if (debug_info_level != DINFO_LEVEL_TERSE || depth == 0) | |
2434 | dbxout_syms (BLOCK_VARS (block)); | |
2435 | if (args) | |
2436 | dbxout_reg_parms (args); | |
2437 | #endif | |
2438 | ||
2439 | /* Output the subblocks. */ | |
0d92cbff | 2440 | dbxout_block (BLOCK_SUBBLOCKS (block), depth + 1, NULL_TREE); |
00fe048c RS |
2441 | |
2442 | /* Refer to the marker for the end of the block. */ | |
2443 | if (depth > 0 && debug_info_level != DINFO_LEVEL_TERSE) | |
2444 | { | |
2445 | char buf[20]; | |
2446 | ASM_GENERATE_INTERNAL_LABEL (buf, "LBE", blocknum); | |
01e2750c RS |
2447 | #ifdef DBX_OUTPUT_RBRAC |
2448 | DBX_OUTPUT_RBRAC (asmfile, buf); | |
2449 | #else | |
00fe048c RS |
2450 | fprintf (asmfile, "%s %d,0,0,", ASM_STABN_OP, N_RBRAC); |
2451 | assemble_name (asmfile, buf); | |
01571284 RS |
2452 | #if DBX_BLOCKS_FUNCTION_RELATIVE |
2453 | fputc ('-', asmfile); | |
ce343979 | 2454 | assemble_name (asmfile, XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0)); |
01571284 | 2455 | #endif |
00fe048c | 2456 | fprintf (asmfile, "\n"); |
01e2750c | 2457 | #endif |
00fe048c RS |
2458 | } |
2459 | } | |
2460 | block = BLOCK_CHAIN (block); | |
2461 | } | |
2462 | } | |
2463 | ||
2464 | /* Output the information about a function and its arguments and result. | |
2465 | Usually this follows the function's code, | |
2466 | but on some systems, it comes before. */ | |
2467 | ||
2468 | static void | |
2469 | dbxout_really_begin_function (decl) | |
2470 | tree decl; | |
2471 | { | |
2472 | dbxout_symbol (decl, 0); | |
2473 | dbxout_parms (DECL_ARGUMENTS (decl)); | |
2474 | if (DECL_NAME (DECL_RESULT (decl)) != 0) | |
2475 | dbxout_symbol (DECL_RESULT (decl), 1); | |
2476 | } | |
2477 | ||
2478 | /* Called at beginning of output of function definition. */ | |
2479 | ||
2480 | void | |
2481 | dbxout_begin_function (decl) | |
2482 | tree decl; | |
2483 | { | |
2484 | #ifdef DBX_FUNCTION_FIRST | |
2485 | dbxout_really_begin_function (decl); | |
2486 | #endif | |
2487 | } | |
2488 | ||
2489 | /* Output dbx data for a function definition. | |
2490 | This includes a definition of the function name itself (a symbol), | |
2491 | definitions of the parameters (locating them in the parameter list) | |
2492 | and then output the block that makes up the function's body | |
2493 | (including all the auto variables of the function). */ | |
2494 | ||
2495 | void | |
2496 | dbxout_function (decl) | |
2497 | tree decl; | |
2498 | { | |
2499 | #ifndef DBX_FUNCTION_FIRST | |
2500 | dbxout_really_begin_function (decl); | |
2501 | #endif | |
2502 | dbxout_block (DECL_INITIAL (decl), 0, DECL_ARGUMENTS (decl)); | |
2503 | #ifdef DBX_OUTPUT_FUNCTION_END | |
2504 | DBX_OUTPUT_FUNCTION_END (asmfile, decl); | |
2505 | #endif | |
2506 | } | |
00fe048c | 2507 | #endif /* DBX_DEBUGGING_INFO */ |