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00fe048c | 1 | /* Output dbx-format symbol table information from GNU compiler. |
ef58a523 | 2 | Copyright (C) 1987, 1988, 1992, 1993, 1994, 1995, 1996, 1997, 1998, |
a4d8ec65 | 3 | 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc. |
00fe048c | 4 | |
1322177d | 5 | This file is part of GCC. |
00fe048c | 6 | |
1322177d LB |
7 | GCC is free software; you can redistribute it and/or modify it under |
8 | the terms of the GNU General Public License as published by the Free | |
9 | Software Foundation; either version 2, or (at your option) any later | |
10 | version. | |
00fe048c | 11 | |
1322177d LB |
12 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
13 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 | for more details. | |
00fe048c RS |
16 | |
17 | You should have received a copy of the GNU General Public License | |
1322177d LB |
18 | along with GCC; see the file COPYING. If not, write to the Free |
19 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
20 | 02111-1307, USA. */ | |
00fe048c RS |
21 | |
22 | ||
23 | /* Output dbx-format symbol table data. | |
24 | This consists of many symbol table entries, each of them | |
25 | a .stabs assembler pseudo-op with four operands: | |
26 | a "name" which is really a description of one symbol and its type, | |
27 | a "code", which is a symbol defined in stab.h whose name starts with N_, | |
28 | an unused operand always 0, | |
29 | and a "value" which is an address or an offset. | |
30 | The name is enclosed in doublequote characters. | |
31 | ||
32 | Each function, variable, typedef, and structure tag | |
33 | has a symbol table entry to define it. | |
34 | The beginning and end of each level of name scoping within | |
35 | a function are also marked by special symbol table entries. | |
36 | ||
37 | The "name" consists of the symbol name, a colon, a kind-of-symbol letter, | |
38 | and a data type number. The data type number may be followed by | |
39 | "=" and a type definition; normally this will happen the first time | |
40 | the type number is mentioned. The type definition may refer to | |
41 | other types by number, and those type numbers may be followed | |
42 | by "=" and nested definitions. | |
43 | ||
44 | This can make the "name" quite long. | |
45 | When a name is more than 80 characters, we split the .stabs pseudo-op | |
46 | into two .stabs pseudo-ops, both sharing the same "code" and "value". | |
47 | The first one is marked as continued with a double-backslash at the | |
48 | end of its "name". | |
49 | ||
50 | The kind-of-symbol letter distinguished function names from global | |
51 | variables from file-scope variables from parameters from auto | |
52 | variables in memory from typedef names from register variables. | |
53 | See `dbxout_symbol'. | |
54 | ||
55 | The "code" is mostly redundant with the kind-of-symbol letter | |
56 | that goes in the "name", but not entirely: for symbols located | |
57 | in static storage, the "code" says which segment the address is in, | |
58 | which controls how it is relocated. | |
59 | ||
60 | The "value" for a symbol in static storage | |
61 | is the core address of the symbol (actually, the assembler | |
62 | label for the symbol). For a symbol located in a stack slot | |
63 | it is the stack offset; for one in a register, the register number. | |
64 | For a typedef symbol, it is zero. | |
65 | ||
66 | If DEBUG_SYMS_TEXT is defined, all debugging symbols must be | |
67 | output while in the text section. | |
68 | ||
69 | For more on data type definitions, see `dbxout_type'. */ | |
70 | ||
e9a25f70 | 71 | #include "config.h" |
670ee920 | 72 | #include "system.h" |
4977bab6 ZW |
73 | #include "coretypes.h" |
74 | #include "tm.h" | |
ccd043a9 | 75 | |
00fe048c RS |
76 | #include "tree.h" |
77 | #include "rtl.h" | |
78 | #include "flags.h" | |
79 | #include "regs.h" | |
80 | #include "insn-config.h" | |
81 | #include "reload.h" | |
c3bbab6a | 82 | #include "output.h" /* ASM_OUTPUT_SOURCE_LINE may refer to sdb functions. */ |
76ead72b | 83 | #include "dbxout.h" |
487a6e06 | 84 | #include "toplev.h" |
aa388f29 | 85 | #include "tm_p.h" |
951a525f | 86 | #include "ggc.h" |
a51d908e | 87 | #include "debug.h" |
c3fb23f4 | 88 | #include "function.h" |
7c262518 | 89 | #include "target.h" |
3ac88239 | 90 | #include "langhooks.h" |
00fe048c | 91 | |
b372168c | 92 | #ifdef XCOFF_DEBUGGING_INFO |
95f2ba07 | 93 | #include "xcoffout.h" |
b372168c MM |
94 | #endif |
95 | ||
6a08f7b3 DP |
96 | #undef DBXOUT_DECR_NESTING |
97 | #define DBXOUT_DECR_NESTING \ | |
98 | if (--debug_nesting == 0 && symbol_queue_index > 0) \ | |
33e9d2aa | 99 | { emit_pending_bincls_if_required (); debug_flush_symbol_queue (); } |
6a08f7b3 DP |
100 | |
101 | #undef DBXOUT_DECR_NESTING_AND_RETURN | |
102 | #define DBXOUT_DECR_NESTING_AND_RETURN(x) \ | |
103 | do {--debug_nesting; return (x);} while (0) | |
104 | ||
00fe048c | 105 | #ifndef ASM_STABS_OP |
0a3e1f45 | 106 | #define ASM_STABS_OP "\t.stabs\t" |
00fe048c RS |
107 | #endif |
108 | ||
109 | #ifndef ASM_STABN_OP | |
0a3e1f45 | 110 | #define ASM_STABN_OP "\t.stabn\t" |
00fe048c RS |
111 | #endif |
112 | ||
01e2750c RS |
113 | #ifndef DBX_TYPE_DECL_STABS_CODE |
114 | #define DBX_TYPE_DECL_STABS_CODE N_LSYM | |
b372168c MM |
115 | #endif |
116 | ||
117 | #ifndef DBX_STATIC_CONST_VAR_CODE | |
118 | #define DBX_STATIC_CONST_VAR_CODE N_FUN | |
119 | #endif | |
120 | ||
121 | #ifndef DBX_REGPARM_STABS_CODE | |
122 | #define DBX_REGPARM_STABS_CODE N_RSYM | |
123 | #endif | |
124 | ||
125 | #ifndef DBX_REGPARM_STABS_LETTER | |
126 | #define DBX_REGPARM_STABS_LETTER 'P' | |
127 | #endif | |
128 | ||
f31093e2 JW |
129 | /* This is used for parameters passed by invisible reference in a register. */ |
130 | #ifndef GDB_INV_REF_REGPARM_STABS_LETTER | |
131 | #define GDB_INV_REF_REGPARM_STABS_LETTER 'a' | |
132 | #endif | |
133 | ||
01e2750c RS |
134 | #ifndef DBX_MEMPARM_STABS_LETTER |
135 | #define DBX_MEMPARM_STABS_LETTER 'p' | |
136 | #endif | |
137 | ||
d4018fbf PE |
138 | #ifndef FILE_NAME_JOINER |
139 | #define FILE_NAME_JOINER "/" | |
140 | #endif | |
141 | ||
acb0db7b ZW |
142 | /* GDB needs to know that the stabs were generated by GCC. We emit an |
143 | N_OPT stab at the beginning of the source file to indicate this. | |
144 | The string is historical, and different on a very few targets. */ | |
145 | #ifndef STABS_GCC_MARKER | |
146 | #define STABS_GCC_MARKER "gcc2_compiled." | |
147 | #endif | |
148 | ||
00fe048c RS |
149 | enum typestatus {TYPE_UNSEEN, TYPE_XREF, TYPE_DEFINED}; |
150 | ||
4bcaafd9 ILT |
151 | /* Structure recording information about a C data type. |
152 | The status element says whether we have yet output | |
153 | the definition of the type. TYPE_XREF says we have | |
154 | output it as a cross-reference only. | |
155 | The file_number and type_number elements are used if DBX_USE_BINCL | |
156 | is defined. */ | |
157 | ||
17211ab5 | 158 | struct typeinfo GTY(()) |
4bcaafd9 ILT |
159 | { |
160 | enum typestatus status; | |
4bcaafd9 ILT |
161 | int file_number; |
162 | int type_number; | |
4bcaafd9 ILT |
163 | }; |
164 | ||
165 | /* Vector recording information about C data types. | |
00fe048c RS |
166 | When we first notice a data type (a tree node), |
167 | we assign it a number using next_type_number. | |
4bcaafd9 | 168 | That is its index in this vector. */ |
00fe048c | 169 | |
17211ab5 | 170 | static GTY ((length ("typevec_len"))) struct typeinfo *typevec; |
00fe048c RS |
171 | |
172 | /* Number of elements of space allocated in `typevec'. */ | |
173 | ||
17211ab5 | 174 | static GTY(()) int typevec_len; |
00fe048c RS |
175 | |
176 | /* In dbx output, each type gets a unique number. | |
177 | This is the number for the next type output. | |
178 | The number, once assigned, is in the TYPE_SYMTAB_ADDRESS field. */ | |
179 | ||
17211ab5 | 180 | static GTY(()) int next_type_number; |
4bcaafd9 | 181 | |
21d13d83 ZW |
182 | /* The C front end may call dbxout_symbol before dbxout_init runs. |
183 | We save all such decls in this list and output them when we get | |
184 | to dbxout_init. */ | |
185 | ||
186 | static GTY(()) tree preinit_symbols; | |
187 | ||
33e9d2aa DP |
188 | enum binclstatus {BINCL_NOT_REQUIRED, BINCL_PENDING, BINCL_PROCESSED}; |
189 | ||
4bcaafd9 ILT |
190 | /* When using N_BINCL in dbx output, each type number is actually a |
191 | pair of the file number and the type number within the file. | |
192 | This is a stack of input files. */ | |
193 | ||
047c6eac | 194 | struct dbx_file |
4bcaafd9 ILT |
195 | { |
196 | struct dbx_file *next; | |
197 | int file_number; | |
198 | int next_type_number; | |
047c6eac GK |
199 | enum binclstatus bincl_status; /* Keep track of lazy bincl. */ |
200 | const char *pending_bincl_name; /* Name of bincl. */ | |
201 | struct dbx_file *prev; /* Chain to traverse all pending bincls. */ | |
4bcaafd9 ILT |
202 | }; |
203 | ||
047c6eac GK |
204 | /* This is the top of the stack. |
205 | ||
206 | This is not saved for PCH, because restoring a PCH should not change it. | |
207 | next_file_number does have to be saved, because the PCH may use some | |
208 | file numbers; however, just before restoring a PCH, next_file_number | |
209 | should always be 0 because we should not have needed any file numbers | |
210 | yet. */ | |
4bcaafd9 | 211 | |
e139ff5b AS |
212 | #if (defined (DBX_DEBUGGING_INFO) || defined (XCOFF_DEBUGGING_INFO)) \ |
213 | && defined (DBX_USE_BINCL) | |
047c6eac | 214 | static struct dbx_file *current_file; |
a37336cf | 215 | #endif |
4bcaafd9 ILT |
216 | |
217 | /* This is the next file number to use. */ | |
218 | ||
17211ab5 GK |
219 | static GTY(()) int next_file_number; |
220 | ||
33b49800 | 221 | /* A counter for dbxout_function_end. */ |
c1b50e49 | 222 | |
33b49800 | 223 | static GTY(()) int scope_labelno; |
c1b50e49 | 224 | |
a8d0467e EB |
225 | /* A counter for dbxout_source_line. */ |
226 | ||
227 | static GTY(()) int dbxout_source_line_counter; | |
228 | ||
17211ab5 GK |
229 | /* Nonzero if we have actually used any of the GDB extensions |
230 | to the debugging format. The idea is that we use them for the | |
231 | first time only if there's a strong reason, but once we have done that, | |
232 | we use them whenever convenient. */ | |
233 | ||
33b49800 | 234 | static GTY(()) int have_used_extensions = 0; |
17211ab5 GK |
235 | |
236 | /* Number for the next N_SOL filename stabs label. The number 0 is reserved | |
237 | for the N_SO filename stabs label. */ | |
238 | ||
33b49800 GK |
239 | static GTY(()) int source_label_number = 1; |
240 | ||
241 | /* Last source file name mentioned in a NOTE insn. */ | |
242 | ||
243 | static GTY(()) const char *lastfile; | |
244 | ||
245 | /* Used by PCH machinery to detect if 'lastfile' should be reset to | |
246 | base_input_file. */ | |
247 | static GTY(()) int lastfile_is_base; | |
248 | ||
249 | /* Typical USG systems don't have stab.h, and they also have | |
250 | no use for DBX-format debugging info. */ | |
251 | ||
252 | #if defined (DBX_DEBUGGING_INFO) || defined (XCOFF_DEBUGGING_INFO) | |
253 | ||
8837d828 AS |
254 | #ifdef DBX_USE_BINCL |
255 | /* If zero then there is no pending BINCL. */ | |
256 | static int pending_bincls = 0; | |
257 | #endif | |
258 | ||
33b49800 GK |
259 | /* The original input file name. */ |
260 | static const char *base_input_file; | |
261 | ||
262 | /* Current working directory. */ | |
263 | ||
264 | static const char *cwd; | |
17211ab5 GK |
265 | |
266 | #ifdef DEBUG_SYMS_TEXT | |
267 | #define FORCE_TEXT function_section (current_function_decl); | |
268 | #else | |
269 | #define FORCE_TEXT | |
270 | #endif | |
271 | ||
272 | #include "gstab.h" | |
273 | ||
274 | #define STAB_CODE_TYPE enum __stab_debug_code | |
275 | ||
276 | /* 1 if PARM is passed to this function in memory. */ | |
277 | ||
278 | #define PARM_PASSED_IN_MEMORY(PARM) \ | |
279 | (GET_CODE (DECL_INCOMING_RTL (PARM)) == MEM) | |
4bcaafd9 | 280 | |
17211ab5 GK |
281 | /* A C expression for the integer offset value of an automatic variable |
282 | (N_LSYM) having address X (an RTX). */ | |
283 | #ifndef DEBUGGER_AUTO_OFFSET | |
284 | #define DEBUGGER_AUTO_OFFSET(X) \ | |
285 | (GET_CODE (X) == PLUS ? INTVAL (XEXP (X, 1)) : 0) | |
286 | #endif | |
287 | ||
288 | /* A C expression for the integer offset value of an argument (N_PSYM) | |
289 | having address X (an RTX). The nominal offset is OFFSET. */ | |
290 | #ifndef DEBUGGER_ARG_OFFSET | |
291 | #define DEBUGGER_ARG_OFFSET(OFFSET, X) (OFFSET) | |
292 | #endif | |
293 | ||
294 | /* Stream for writing to assembler file. */ | |
295 | ||
296 | static FILE *asmfile; | |
4bcaafd9 | 297 | |
00fe048c RS |
298 | /* These variables are for dbxout_symbol to communicate to |
299 | dbxout_finish_symbol. | |
300 | current_sym_code is the symbol-type-code, a symbol N_... define in stab.h. | |
301 | current_sym_value and current_sym_addr are two ways to address the | |
302 | value to store in the symtab entry. | |
303 | current_sym_addr if nonzero represents the value as an rtx. | |
304 | If that is zero, current_sym_value is used. This is used | |
305 | when the value is an offset (such as for auto variables, | |
306 | register variables and parms). */ | |
307 | ||
308 | static STAB_CODE_TYPE current_sym_code; | |
309 | static int current_sym_value; | |
310 | static rtx current_sym_addr; | |
311 | ||
312 | /* Number of chars of symbol-description generated so far for the | |
313 | current symbol. Used by CHARS and CONTIN. */ | |
314 | ||
315 | static int current_sym_nchars; | |
316 | ||
317 | /* Report having output N chars of the current symbol-description. */ | |
318 | ||
319 | #define CHARS(N) (current_sym_nchars += (N)) | |
320 | ||
321 | /* Break the current symbol-description, generating a continuation, | |
322 | if it has become long. */ | |
323 | ||
324 | #ifndef DBX_CONTIN_LENGTH | |
325 | #define DBX_CONTIN_LENGTH 80 | |
326 | #endif | |
327 | ||
328 | #if DBX_CONTIN_LENGTH > 0 | |
329 | #define CONTIN \ | |
330 | do {if (current_sym_nchars > DBX_CONTIN_LENGTH) dbxout_continue ();} while (0) | |
331 | #else | |
86a44e25 | 332 | #define CONTIN do { } while (0) |
00fe048c RS |
333 | #endif |
334 | ||
5ec3a5a7 | 335 | #ifdef DBX_USE_BINCL |
33e9d2aa DP |
336 | static void emit_bincl_stab (const char *c); |
337 | static void emit_pending_bincls (void); | |
f23b9d52 | 338 | #endif |
33e9d2aa DP |
339 | static inline void emit_pending_bincls_if_required (void); |
340 | ||
7080f735 AJ |
341 | static void dbxout_init (const char *); |
342 | static void dbxout_finish (const char *); | |
343 | static void dbxout_start_source_file (unsigned, const char *); | |
344 | static void dbxout_end_source_file (unsigned); | |
345 | static void dbxout_typedefs (tree); | |
7080f735 | 346 | static void dbxout_type_index (tree); |
7a87758d | 347 | #if DBX_CONTIN_LENGTH > 0 |
7080f735 | 348 | static void dbxout_continue (void); |
7a87758d | 349 | #endif |
7080f735 AJ |
350 | static void dbxout_args (tree); |
351 | static void dbxout_type_fields (tree); | |
352 | static void dbxout_type_method_1 (tree, const char *); | |
353 | static void dbxout_type_methods (tree); | |
354 | static void dbxout_range_type (tree); | |
355 | static void dbxout_type (tree, int); | |
356 | static bool print_int_cst_bounds_in_octal_p (tree); | |
357 | static void print_int_cst_octal (tree); | |
358 | static void print_octal (unsigned HOST_WIDE_INT, int); | |
359 | static void print_wide_int (HOST_WIDE_INT); | |
360 | static void dbxout_type_name (tree); | |
361 | static void dbxout_class_name_qualifiers (tree); | |
362 | static int dbxout_symbol_location (tree, tree, const char *, rtx); | |
363 | static void dbxout_symbol_name (tree, const char *, int); | |
364 | static void dbxout_prepare_symbol (tree); | |
365 | static void dbxout_finish_symbol (tree); | |
366 | static void dbxout_block (tree, int, tree); | |
367 | static void dbxout_global_decl (tree); | |
8507c40a | 368 | static void dbxout_type_decl (tree, int); |
7080f735 | 369 | static void dbxout_handle_pch (unsigned); |
00fe048c | 370 | \f |
7f905405 | 371 | /* The debug hooks structure. */ |
a5a42b92 NB |
372 | #if defined (DBX_DEBUGGING_INFO) |
373 | ||
7080f735 AJ |
374 | static void dbxout_source_line (unsigned int, const char *); |
375 | static void dbxout_source_file (FILE *, const char *); | |
376 | static void dbxout_function_end (void); | |
377 | static void dbxout_begin_function (tree); | |
378 | static void dbxout_begin_block (unsigned, unsigned); | |
379 | static void dbxout_end_block (unsigned, unsigned); | |
380 | static void dbxout_function_decl (tree); | |
a5a42b92 | 381 | |
54b6670a | 382 | const struct gcc_debug_hooks dbx_debug_hooks = |
a51d908e NB |
383 | { |
384 | dbxout_init, | |
7f905405 NB |
385 | dbxout_finish, |
386 | debug_nothing_int_charstar, | |
387 | debug_nothing_int_charstar, | |
388 | dbxout_start_source_file, | |
a5a42b92 NB |
389 | dbxout_end_source_file, |
390 | dbxout_begin_block, | |
e2a12aca | 391 | dbxout_end_block, |
6097b0c3 DP |
392 | debug_true_tree, /* ignore_block */ |
393 | dbxout_source_line, /* source_line */ | |
394 | dbxout_source_line, /* begin_prologue: just output | |
395 | line info */ | |
396 | debug_nothing_int_charstar, /* end_prologue */ | |
397 | debug_nothing_int_charstar, /* end_epilogue */ | |
653e276c NB |
398 | #ifdef DBX_FUNCTION_FIRST |
399 | dbxout_begin_function, | |
400 | #else | |
6097b0c3 | 401 | debug_nothing_tree, /* begin_function */ |
653e276c | 402 | #endif |
6097b0c3 | 403 | debug_nothing_int, /* end_function */ |
2b85879e | 404 | dbxout_function_decl, |
6097b0c3 | 405 | dbxout_global_decl, /* global_decl */ |
21d13d83 | 406 | dbxout_type_decl, /* type_decl */ |
6097b0c3 DP |
407 | debug_nothing_tree_tree, /* imported_module_or_decl */ |
408 | debug_nothing_tree, /* deferred_inline_function */ | |
409 | debug_nothing_tree, /* outlining_inline_function */ | |
410 | debug_nothing_rtx, /* label */ | |
014a1138 JZ |
411 | dbxout_handle_pch, /* handle_pch */ |
412 | debug_nothing_rtx /* var_location */ | |
a51d908e | 413 | }; |
a5a42b92 NB |
414 | #endif /* DBX_DEBUGGING_INFO */ |
415 | ||
416 | #if defined (XCOFF_DEBUGGING_INFO) | |
54b6670a | 417 | const struct gcc_debug_hooks xcoff_debug_hooks = |
a5a42b92 NB |
418 | { |
419 | dbxout_init, | |
420 | dbxout_finish, | |
421 | debug_nothing_int_charstar, | |
422 | debug_nothing_int_charstar, | |
423 | dbxout_start_source_file, | |
424 | dbxout_end_source_file, | |
425 | xcoffout_begin_block, | |
e2a12aca | 426 | xcoffout_end_block, |
6097b0c3 | 427 | debug_true_tree, /* ignore_block */ |
e2a12aca | 428 | xcoffout_source_line, |
6097b0c3 DP |
429 | xcoffout_begin_prologue, /* begin_prologue */ |
430 | debug_nothing_int_charstar, /* end_prologue */ | |
e2a12aca | 431 | xcoffout_end_epilogue, |
6097b0c3 | 432 | debug_nothing_tree, /* begin_function */ |
2b85879e | 433 | xcoffout_end_function, |
6097b0c3 DP |
434 | debug_nothing_tree, /* function_decl */ |
435 | dbxout_global_decl, /* global_decl */ | |
21d13d83 | 436 | dbxout_type_decl, /* type_decl */ |
6097b0c3 DP |
437 | debug_nothing_tree_tree, /* imported_module_or_decl */ |
438 | debug_nothing_tree, /* deferred_inline_function */ | |
439 | debug_nothing_tree, /* outlining_inline_function */ | |
440 | debug_nothing_rtx, /* label */ | |
014a1138 JZ |
441 | dbxout_handle_pch, /* handle_pch */ |
442 | debug_nothing_rtx /* var_location */ | |
a5a42b92 NB |
443 | }; |
444 | #endif /* XCOFF_DEBUGGING_INFO */ | |
a51d908e | 445 | \f |
c3fb23f4 | 446 | #if defined (DBX_DEBUGGING_INFO) |
cf440348 | 447 | static void |
7080f735 | 448 | dbxout_function_end (void) |
cf440348 JL |
449 | { |
450 | char lscope_label_name[100]; | |
451 | /* Convert Ltext into the appropriate format for local labels in case | |
452 | the system doesn't insert underscores in front of user generated | |
453 | labels. */ | |
454 | ASM_GENERATE_INTERNAL_LABEL (lscope_label_name, "Lscope", scope_labelno); | |
4977bab6 | 455 | (*targetm.asm_out.internal_label) (asmfile, "Lscope", scope_labelno); |
cf440348 JL |
456 | scope_labelno++; |
457 | ||
458 | /* By convention, GCC will mark the end of a function with an N_FUN | |
459 | symbol and an empty string. */ | |
374b0b7d AM |
460 | #ifdef DBX_OUTPUT_NFUN |
461 | DBX_OUTPUT_NFUN (asmfile, lscope_label_name, current_function_decl); | |
462 | #else | |
e8638df0 | 463 | fprintf (asmfile, "%s\"\",%d,0,0,", ASM_STABS_OP, N_FUN); |
cf440348 | 464 | assemble_name (asmfile, lscope_label_name); |
02e3f1a8 | 465 | putc ('-', asmfile); |
cf440348 | 466 | assemble_name (asmfile, XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0)); |
59cfb80c | 467 | fprintf (asmfile, "\n"); |
374b0b7d | 468 | #endif |
cf440348 | 469 | } |
c3fb23f4 | 470 | #endif /* DBX_DEBUGGING_INFO */ |
cf440348 | 471 | |
00fe048c RS |
472 | /* At the beginning of compilation, start writing the symbol table. |
473 | Initialize `typevec' and output the standard data types of C. */ | |
474 | ||
a51d908e | 475 | static void |
7080f735 | 476 | dbxout_init (const char *input_file_name) |
00fe048c RS |
477 | { |
478 | char ltext_label_name[100]; | |
43577e6b | 479 | tree syms = (*lang_hooks.decls.getdecls) (); |
00fe048c | 480 | |
e2a12aca | 481 | asmfile = asm_out_file; |
00fe048c RS |
482 | |
483 | typevec_len = 100; | |
703ad42b | 484 | typevec = ggc_calloc (typevec_len, sizeof typevec[0]); |
00fe048c RS |
485 | |
486 | /* Convert Ltext into the appropriate format for local labels in case | |
487 | the system doesn't insert underscores in front of user generated | |
488 | labels. */ | |
489 | ASM_GENERATE_INTERNAL_LABEL (ltext_label_name, "Ltext", 0); | |
490 | ||
491 | /* Put the current working directory in an N_SO symbol. */ | |
196cedd0 | 492 | if (use_gnu_debug_info_extensions) |
b372168c | 493 | { |
b20d9f0c AO |
494 | if (!cwd && (cwd = get_src_pwd ()) |
495 | && (!*cwd || cwd[strlen (cwd) - 1] != '/')) | |
d4c3ec27 | 496 | cwd = concat (cwd, FILE_NAME_JOINER, NULL); |
d4018fbf | 497 | if (cwd) |
b372168c | 498 | { |
00fe048c | 499 | #ifdef DBX_OUTPUT_MAIN_SOURCE_DIRECTORY |
b372168c | 500 | DBX_OUTPUT_MAIN_SOURCE_DIRECTORY (asmfile, cwd); |
00fe048c | 501 | #else /* no DBX_OUTPUT_MAIN_SOURCE_DIRECTORY */ |
e8638df0 | 502 | fprintf (asmfile, "%s", ASM_STABS_OP); |
d4018fbf | 503 | output_quoted_string (asmfile, cwd); |
33c7f925 GK |
504 | fprintf (asmfile, ",%d,0,0,", N_SO); |
505 | assemble_name (asmfile, ltext_label_name); | |
506 | fputc ('\n', asmfile); | |
00fe048c | 507 | #endif /* no DBX_OUTPUT_MAIN_SOURCE_DIRECTORY */ |
b372168c MM |
508 | } |
509 | } | |
00fe048c RS |
510 | |
511 | #ifdef DBX_OUTPUT_MAIN_SOURCE_FILENAME | |
00fe048c RS |
512 | DBX_OUTPUT_MAIN_SOURCE_FILENAME (asmfile, input_file_name); |
513 | #else /* no DBX_OUTPUT_MAIN_SOURCE_FILENAME */ | |
514 | /* We include outputting `Ltext:' here, | |
515 | because that gives you a way to override it. */ | |
516 | /* Used to put `Ltext:' before the reference, but that loses on sun 4. */ | |
e8638df0 | 517 | fprintf (asmfile, "%s", ASM_STABS_OP); |
d4018fbf | 518 | output_quoted_string (asmfile, input_file_name); |
33c7f925 GK |
519 | fprintf (asmfile, ",%d,0,0,", N_SO); |
520 | assemble_name (asmfile, ltext_label_name); | |
521 | fputc ('\n', asmfile); | |
00fe048c | 522 | text_section (); |
4977bab6 | 523 | (*targetm.asm_out.internal_label) (asmfile, "Ltext", 0); |
00fe048c RS |
524 | #endif /* no DBX_OUTPUT_MAIN_SOURCE_FILENAME */ |
525 | ||
ad087b92 ZW |
526 | #ifdef DBX_OUTPUT_GCC_MARKER |
527 | DBX_OUTPUT_GCC_MARKER (asmfile); | |
528 | #else | |
acb0db7b ZW |
529 | /* Emit an N_OPT stab to indicate that this file was compiled by GCC. */ |
530 | fprintf (asmfile, "%s\"%s\",%d,0,0,0\n", | |
531 | ASM_STABS_OP, STABS_GCC_MARKER, N_OPT); | |
ad087b92 | 532 | #endif |
01571284 | 533 | |
33b49800 | 534 | base_input_file = lastfile = input_file_name; |
00fe048c RS |
535 | |
536 | next_type_number = 1; | |
00fe048c | 537 | |
4bcaafd9 | 538 | #ifdef DBX_USE_BINCL |
047c6eac | 539 | current_file = xmalloc (sizeof *current_file); |
4bcaafd9 ILT |
540 | current_file->next = NULL; |
541 | current_file->file_number = 0; | |
542 | current_file->next_type_number = 1; | |
543 | next_file_number = 1; | |
33e9d2aa DP |
544 | current_file->prev = NULL; |
545 | current_file->bincl_status = BINCL_NOT_REQUIRED; | |
546 | current_file->pending_bincl_name = NULL; | |
4bcaafd9 ILT |
547 | #endif |
548 | ||
47aa0df4 MM |
549 | /* Get all permanent types that have typedef names, and output them |
550 | all, except for those already output. Some language front ends | |
21d13d83 ZW |
551 | put these declarations in the top-level scope; some do not; |
552 | the latter are responsible for calling debug_hooks->type_decl from | |
553 | their record_builtin_type function. */ | |
00fe048c | 554 | dbxout_typedefs (syms); |
21d13d83 ZW |
555 | |
556 | if (preinit_symbols) | |
557 | { | |
558 | tree t; | |
559 | for (t = nreverse (preinit_symbols); t; t = TREE_CHAIN (t)) | |
560 | dbxout_symbol (TREE_VALUE (t), 0); | |
561 | preinit_symbols = 0; | |
562 | } | |
00fe048c RS |
563 | } |
564 | ||
0ee55ad8 | 565 | /* Output any typedef names for types described by TYPE_DECLs in SYMS. */ |
00fe048c RS |
566 | |
567 | static void | |
7080f735 | 568 | dbxout_typedefs (tree syms) |
00fe048c | 569 | { |
8aa43dd0 | 570 | for (; syms != NULL_TREE; syms = TREE_CHAIN (syms)) |
00fe048c | 571 | { |
00fe048c RS |
572 | if (TREE_CODE (syms) == TYPE_DECL) |
573 | { | |
574 | tree type = TREE_TYPE (syms); | |
575 | if (TYPE_NAME (type) | |
576 | && TREE_CODE (TYPE_NAME (type)) == TYPE_DECL | |
a354c7d6 | 577 | && COMPLETE_OR_VOID_TYPE_P (type) |
00fe048c RS |
578 | && ! TREE_ASM_WRITTEN (TYPE_NAME (type))) |
579 | dbxout_symbol (TYPE_NAME (type), 0); | |
580 | } | |
581 | } | |
582 | } | |
583 | ||
f23b9d52 | 584 | #ifdef DBX_USE_BINCL |
4ed43216 | 585 | /* Emit BINCL stab using given name. */ |
33e9d2aa DP |
586 | static void |
587 | emit_bincl_stab (const char *name) | |
588 | { | |
589 | fprintf (asmfile, "%s", ASM_STABS_OP); | |
590 | output_quoted_string (asmfile, name); | |
591 | fprintf (asmfile, ",%d,0,0,0\n", N_BINCL); | |
592 | } | |
593 | ||
594 | /* If there are pending bincls then it is time to emit all of them. */ | |
595 | ||
596 | static inline void | |
7e51717c | 597 | emit_pending_bincls_if_required (void) |
33e9d2aa | 598 | { |
33e9d2aa DP |
599 | if (pending_bincls) |
600 | emit_pending_bincls (); | |
33e9d2aa DP |
601 | } |
602 | ||
603 | /* Emit all pending bincls. */ | |
604 | ||
605 | static void | |
7e51717c | 606 | emit_pending_bincls (void) |
33e9d2aa DP |
607 | { |
608 | struct dbx_file *f = current_file; | |
609 | ||
610 | /* Find first pending bincl. */ | |
611 | while (f->bincl_status == BINCL_PENDING) | |
612 | f = f->next; | |
613 | ||
614 | /* Now emit all bincls. */ | |
615 | f = f->prev; | |
616 | ||
617 | while (f) | |
618 | { | |
619 | if (f->bincl_status == BINCL_PENDING) | |
620 | { | |
621 | emit_bincl_stab (f->pending_bincl_name); | |
622 | ||
623 | /* Update file number and status. */ | |
624 | f->file_number = next_file_number++; | |
625 | f->bincl_status = BINCL_PROCESSED; | |
626 | } | |
627 | if (f == current_file) | |
628 | break; | |
629 | f = f->prev; | |
630 | } | |
631 | ||
632 | /* All pending bincls have been emitted. */ | |
633 | pending_bincls = 0; | |
634 | } | |
635 | ||
f23b9d52 DE |
636 | #else |
637 | ||
638 | static inline void | |
7e51717c | 639 | emit_pending_bincls_if_required (void) {} |
f23b9d52 DE |
640 | #endif |
641 | ||
4bcaafd9 ILT |
642 | /* Change to reading from a new source file. Generate a N_BINCL stab. */ |
643 | ||
7f905405 | 644 | static void |
7080f735 AJ |
645 | dbxout_start_source_file (unsigned int line ATTRIBUTE_UNUSED, |
646 | const char *filename ATTRIBUTE_UNUSED) | |
4bcaafd9 ILT |
647 | { |
648 | #ifdef DBX_USE_BINCL | |
047c6eac | 649 | struct dbx_file *n = xmalloc (sizeof *n); |
4bcaafd9 ILT |
650 | |
651 | n->next = current_file; | |
4bcaafd9 | 652 | n->next_type_number = 1; |
33e9d2aa DP |
653 | /* Do not assign file number now. |
654 | Delay it until we actually emit BINCL. */ | |
655 | n->file_number = 0; | |
656 | n->prev = NULL; | |
657 | current_file->prev = n; | |
658 | n->bincl_status = BINCL_PENDING; | |
659 | n->pending_bincl_name = filename; | |
660 | pending_bincls = 1; | |
4bcaafd9 | 661 | current_file = n; |
4bcaafd9 ILT |
662 | #endif |
663 | } | |
664 | ||
665 | /* Revert to reading a previous source file. Generate a N_EINCL stab. */ | |
666 | ||
7f905405 | 667 | static void |
7080f735 | 668 | dbxout_end_source_file (unsigned int line ATTRIBUTE_UNUSED) |
4bcaafd9 ILT |
669 | { |
670 | #ifdef DBX_USE_BINCL | |
33e9d2aa DP |
671 | /* Emit EINCL stab only if BINCL is not pending. */ |
672 | if (current_file->bincl_status == BINCL_PROCESSED) | |
673 | fprintf (asmfile, "%s%d,0,0,0\n", ASM_STABN_OP, N_EINCL); | |
674 | current_file->bincl_status = BINCL_NOT_REQUIRED; | |
17211ab5 | 675 | current_file = current_file->next; |
4bcaafd9 ILT |
676 | #endif |
677 | } | |
678 | ||
33b49800 GK |
679 | /* Handle a few odd cases that occur when trying to make PCH files work. */ |
680 | ||
681 | static void | |
682 | dbxout_handle_pch (unsigned at_end) | |
683 | { | |
684 | if (! at_end) | |
685 | { | |
686 | /* When using the PCH, this file will be included, so we need to output | |
687 | a BINCL. */ | |
688 | dbxout_start_source_file (0, lastfile); | |
689 | ||
690 | /* The base file when using the PCH won't be the same as | |
691 | the base file when it's being generated. */ | |
692 | lastfile = NULL; | |
693 | } | |
694 | else | |
695 | { | |
71c0e7fc | 696 | /* ... and an EINCL. */ |
33b49800 GK |
697 | dbxout_end_source_file (0); |
698 | ||
699 | /* Deal with cases where 'lastfile' was never actually changed. */ | |
700 | lastfile_is_base = lastfile == NULL; | |
701 | } | |
702 | } | |
703 | ||
c3fb23f4 | 704 | #if defined (DBX_DEBUGGING_INFO) |
00fe048c RS |
705 | /* Output debugging info to FILE to switch to sourcefile FILENAME. */ |
706 | ||
e1772ac0 | 707 | static void |
7080f735 | 708 | dbxout_source_file (FILE *file, const char *filename) |
00fe048c | 709 | { |
33b49800 GK |
710 | if (lastfile == 0 && lastfile_is_base) |
711 | { | |
712 | lastfile = base_input_file; | |
713 | lastfile_is_base = 0; | |
714 | } | |
715 | ||
00fe048c RS |
716 | if (filename && (lastfile == 0 || strcmp (filename, lastfile))) |
717 | { | |
b3656137 KG |
718 | char ltext_label_name[100]; |
719 | ||
88bdba96 JW |
720 | ASM_GENERATE_INTERNAL_LABEL (ltext_label_name, "Ltext", |
721 | source_label_number); | |
e8638df0 | 722 | fprintf (file, "%s", ASM_STABS_OP); |
d4018fbf | 723 | output_quoted_string (file, filename); |
33c7f925 GK |
724 | fprintf (asmfile, ",%d,0,0,", N_SOL); |
725 | assemble_name (asmfile, ltext_label_name); | |
726 | fputc ('\n', asmfile); | |
6697c6bf | 727 | if (current_function_decl != NULL_TREE |
5604861b DE |
728 | && DECL_SECTION_NAME (current_function_decl) != NULL_TREE) |
729 | ; /* Don't change section amid function. */ | |
730 | else | |
731 | text_section (); | |
4977bab6 | 732 | (*targetm.asm_out.internal_label) (file, "Ltext", source_label_number); |
667732d8 | 733 | source_label_number++; |
00fe048c RS |
734 | lastfile = filename; |
735 | } | |
736 | } | |
737 | ||
653e276c NB |
738 | /* Output a line number symbol entry for source file FILENAME and line |
739 | number LINENO. */ | |
674c724c | 740 | |
e2a12aca | 741 | static void |
7080f735 | 742 | dbxout_source_line (unsigned int lineno, const char *filename) |
674c724c | 743 | { |
e2a12aca | 744 | dbxout_source_file (asmfile, filename); |
674c724c RS |
745 | |
746 | #ifdef ASM_OUTPUT_SOURCE_LINE | |
a8d0467e EB |
747 | dbxout_source_line_counter += 1; |
748 | ASM_OUTPUT_SOURCE_LINE (asmfile, lineno, dbxout_source_line_counter); | |
674c724c | 749 | #else |
e2a12aca | 750 | fprintf (asmfile, "%s%d,0,%d\n", ASM_STABD_OP, N_SLINE, lineno); |
674c724c RS |
751 | #endif |
752 | } | |
753 | ||
a5a42b92 NB |
754 | /* Describe the beginning of an internal block within a function. */ |
755 | ||
756 | static void | |
7080f735 | 757 | dbxout_begin_block (unsigned int line ATTRIBUTE_UNUSED, unsigned int n) |
a5a42b92 | 758 | { |
33e9d2aa | 759 | emit_pending_bincls_if_required (); |
4977bab6 | 760 | (*targetm.asm_out.internal_label) (asmfile, "LBB", n); |
a5a42b92 NB |
761 | } |
762 | ||
763 | /* Describe the end line-number of an internal block within a function. */ | |
764 | ||
765 | static void | |
7080f735 | 766 | dbxout_end_block (unsigned int line ATTRIBUTE_UNUSED, unsigned int n) |
a5a42b92 | 767 | { |
33e9d2aa | 768 | emit_pending_bincls_if_required (); |
4977bab6 | 769 | (*targetm.asm_out.internal_label) (asmfile, "LBE", n); |
a5a42b92 NB |
770 | } |
771 | ||
2b85879e NB |
772 | /* Output dbx data for a function definition. |
773 | This includes a definition of the function name itself (a symbol), | |
774 | definitions of the parameters (locating them in the parameter list) | |
775 | and then output the block that makes up the function's body | |
776 | (including all the auto variables of the function). */ | |
777 | ||
778 | static void | |
7080f735 | 779 | dbxout_function_decl (tree decl) |
2b85879e | 780 | { |
33e9d2aa | 781 | emit_pending_bincls_if_required (); |
2b85879e NB |
782 | #ifndef DBX_FUNCTION_FIRST |
783 | dbxout_begin_function (decl); | |
784 | #endif | |
785 | dbxout_block (DECL_INITIAL (decl), 0, DECL_ARGUMENTS (decl)); | |
786 | #ifdef DBX_OUTPUT_FUNCTION_END | |
787 | DBX_OUTPUT_FUNCTION_END (asmfile, decl); | |
788 | #endif | |
2b85879e NB |
789 | if (use_gnu_debug_info_extensions |
790 | #if defined(NO_DBX_FUNCTION_END) | |
791 | && ! NO_DBX_FUNCTION_END | |
792 | #endif | |
7c262518 | 793 | && targetm.have_named_sections) |
2b85879e | 794 | dbxout_function_end (); |
2b85879e NB |
795 | } |
796 | ||
a5a42b92 NB |
797 | #endif /* DBX_DEBUGGING_INFO */ |
798 | ||
440aabf8 NB |
799 | /* Debug information for a global DECL. Called from toplev.c after |
800 | compilation proper has finished. */ | |
801 | static void | |
7080f735 | 802 | dbxout_global_decl (tree decl) |
440aabf8 NB |
803 | { |
804 | if (TREE_CODE (decl) == VAR_DECL | |
805 | && ! DECL_EXTERNAL (decl) | |
806 | && DECL_RTL_SET_P (decl)) /* Not necessary? */ | |
6a08f7b3 DP |
807 | { |
808 | int saved_tree_used = TREE_USED (decl); | |
809 | TREE_USED (decl) = 1; | |
810 | dbxout_symbol (decl, 0); | |
811 | TREE_USED (decl) = saved_tree_used; | |
812 | } | |
3a538a66 | 813 | } |
440aabf8 | 814 | |
21d13d83 ZW |
815 | /* This is just a function-type adapter; dbxout_symbol does exactly |
816 | what we want but returns an int. */ | |
817 | static void | |
818 | dbxout_type_decl (tree decl, int local) | |
819 | { | |
820 | dbxout_symbol (decl, local); | |
821 | } | |
822 | ||
00fe048c RS |
823 | /* At the end of compilation, finish writing the symbol table. |
824 | Unless you define DBX_OUTPUT_MAIN_SOURCE_FILE_END, the default is | |
0f41302f | 825 | to do nothing. */ |
00fe048c | 826 | |
a51d908e | 827 | static void |
7080f735 | 828 | dbxout_finish (const char *filename ATTRIBUTE_UNUSED) |
00fe048c RS |
829 | { |
830 | #ifdef DBX_OUTPUT_MAIN_SOURCE_FILE_END | |
e2a12aca | 831 | DBX_OUTPUT_MAIN_SOURCE_FILE_END (asmfile, filename); |
00fe048c | 832 | #endif /* DBX_OUTPUT_MAIN_SOURCE_FILE_END */ |
6a08f7b3 DP |
833 | |
834 | debug_free_queue (); | |
00fe048c RS |
835 | } |
836 | ||
4bcaafd9 ILT |
837 | /* Output the index of a type. */ |
838 | ||
839 | static void | |
7080f735 | 840 | dbxout_type_index (tree type) |
4bcaafd9 ILT |
841 | { |
842 | #ifndef DBX_USE_BINCL | |
843 | fprintf (asmfile, "%d", TYPE_SYMTAB_ADDRESS (type)); | |
844 | CHARS (3); | |
845 | #else | |
846 | struct typeinfo *t = &typevec[TYPE_SYMTAB_ADDRESS (type)]; | |
847 | fprintf (asmfile, "(%d,%d)", t->file_number, t->type_number); | |
02e3f1a8 | 848 | CHARS (9); |
4bcaafd9 ILT |
849 | #endif |
850 | } | |
851 | ||
7a87758d | 852 | #if DBX_CONTIN_LENGTH > 0 |
00fe048c RS |
853 | /* Continue a symbol-description that gets too big. |
854 | End one symbol table entry with a double-backslash | |
855 | and start a new one, eventually producing something like | |
856 | .stabs "start......\\",code,0,value | |
857 | .stabs "...rest",code,0,value */ | |
858 | ||
859 | static void | |
7080f735 | 860 | dbxout_continue (void) |
00fe048c | 861 | { |
33e9d2aa | 862 | emit_pending_bincls_if_required (); |
00fe048c RS |
863 | #ifdef DBX_CONTIN_CHAR |
864 | fprintf (asmfile, "%c", DBX_CONTIN_CHAR); | |
865 | #else | |
866 | fprintf (asmfile, "\\\\"); | |
867 | #endif | |
0d92cbff | 868 | dbxout_finish_symbol (NULL_TREE); |
e8638df0 | 869 | fprintf (asmfile, "%s\"", ASM_STABS_OP); |
00fe048c RS |
870 | current_sym_nchars = 0; |
871 | } | |
7a87758d | 872 | #endif /* DBX_CONTIN_LENGTH > 0 */ |
00fe048c | 873 | \f |
6dc42e49 | 874 | /* Subroutine of `dbxout_type'. Output the type fields of TYPE. |
00fe048c RS |
875 | This must be a separate function because anonymous unions require |
876 | recursive calls. */ | |
877 | ||
878 | static void | |
7080f735 | 879 | dbxout_type_fields (tree type) |
00fe048c RS |
880 | { |
881 | tree tem; | |
665f2503 | 882 | |
15a5b8a2 | 883 | /* Output the name, type, position (in bits), size (in bits) of each |
665f2503 | 884 | field that we can support. */ |
00fe048c RS |
885 | for (tem = TYPE_FIELDS (type); tem; tem = TREE_CHAIN (tem)) |
886 | { | |
975421be | 887 | |
9ac97460 | 888 | /* If on of the nodes is an error_mark or its type is then return early. */ |
975421be AP |
889 | if (tem == error_mark_node || TREE_TYPE (tem) == error_mark_node) |
890 | return; | |
891 | ||
00fe048c | 892 | /* Omit here local type decls until we know how to support them. */ |
665f2503 RK |
893 | if (TREE_CODE (tem) == TYPE_DECL |
894 | /* Omit fields whose position or size are variable or too large to | |
895 | represent. */ | |
896 | || (TREE_CODE (tem) == FIELD_DECL | |
897 | && (! host_integerp (bit_position (tem), 0) | |
06ebf127 | 898 | || ! DECL_SIZE (tem) |
665f2503 RK |
899 | || ! host_integerp (DECL_SIZE (tem), 1))) |
900 | /* Omit here the nameless fields that are used to skip bits. */ | |
901 | || DECL_IGNORED_P (tem)) | |
7b1f7d51 | 902 | continue; |
665f2503 | 903 | |
5b6e175e | 904 | else if (TREE_CODE (tem) != CONST_DECL) |
00fe048c RS |
905 | { |
906 | /* Continue the line if necessary, | |
907 | but not before the first field. */ | |
908 | if (tem != TYPE_FIELDS (type)) | |
665f2503 | 909 | CONTIN; |
00fe048c | 910 | |
5b6e175e PB |
911 | if (DECL_NAME (tem)) |
912 | { | |
913 | fprintf (asmfile, "%s:", IDENTIFIER_POINTER (DECL_NAME (tem))); | |
914 | CHARS (2 + IDENTIFIER_LENGTH (DECL_NAME (tem))); | |
915 | } | |
916 | else | |
917 | { | |
918 | fprintf (asmfile, ":"); | |
02e3f1a8 | 919 | CHARS (1); |
5b6e175e | 920 | } |
00fe048c | 921 | |
196cedd0 | 922 | if (use_gnu_debug_info_extensions |
00fe048c RS |
923 | && (TREE_PRIVATE (tem) || TREE_PROTECTED (tem) |
924 | || TREE_CODE (tem) != FIELD_DECL)) | |
925 | { | |
926 | have_used_extensions = 1; | |
927 | putc ('/', asmfile); | |
928 | putc ((TREE_PRIVATE (tem) ? '0' | |
929 | : TREE_PROTECTED (tem) ? '1' : '2'), | |
930 | asmfile); | |
931 | CHARS (2); | |
932 | } | |
933 | ||
934 | dbxout_type ((TREE_CODE (tem) == FIELD_DECL | |
935 | && DECL_BIT_FIELD_TYPE (tem)) | |
deda4b76 | 936 | ? DECL_BIT_FIELD_TYPE (tem) : TREE_TYPE (tem), 0); |
00fe048c RS |
937 | |
938 | if (TREE_CODE (tem) == VAR_DECL) | |
939 | { | |
196cedd0 | 940 | if (TREE_STATIC (tem) && use_gnu_debug_info_extensions) |
00fe048c | 941 | { |
02e3f1a8 RK |
942 | tree name = DECL_ASSEMBLER_NAME (tem); |
943 | ||
00fe048c | 944 | have_used_extensions = 1; |
02e3f1a8 RK |
945 | fprintf (asmfile, ":%s;", IDENTIFIER_POINTER (name)); |
946 | CHARS (IDENTIFIER_LENGTH (name) + 2); | |
00fe048c RS |
947 | } |
948 | else | |
02e3f1a8 RK |
949 | { |
950 | /* If TEM is non-static, GDB won't understand it. */ | |
951 | fprintf (asmfile, ",0,0;"); | |
952 | CHARS (5); | |
953 | } | |
00fe048c | 954 | } |
665f2503 | 955 | else |
00fe048c | 956 | { |
02e3f1a8 RK |
957 | putc (',', asmfile); |
958 | print_wide_int (int_bit_position (tem)); | |
959 | putc (',', asmfile); | |
960 | print_wide_int (tree_low_cst (DECL_SIZE (tem), 1)); | |
961 | putc (';', asmfile); | |
962 | CHARS (3); | |
00fe048c | 963 | } |
00fe048c RS |
964 | } |
965 | } | |
966 | } | |
967 | \f | |
6dc42e49 | 968 | /* Subroutine of `dbxout_type_methods'. Output debug info about the |
00fe048c RS |
969 | method described DECL. DEBUG_NAME is an encoding of the method's |
970 | type signature. ??? We may be able to do without DEBUG_NAME altogether | |
971 | now. */ | |
972 | ||
973 | static void | |
7080f735 | 974 | dbxout_type_method_1 (tree decl, const char *debug_name) |
00fe048c | 975 | { |
00fe048c RS |
976 | char c1 = 'A', c2; |
977 | ||
978 | if (TREE_CODE (TREE_TYPE (decl)) == FUNCTION_TYPE) | |
979 | c2 = '?'; | |
980 | else /* it's a METHOD_TYPE. */ | |
981 | { | |
213ecac9 | 982 | tree firstarg = TREE_VALUE (TYPE_ARG_TYPES (TREE_TYPE (decl))); |
00fe048c RS |
983 | /* A for normal functions. |
984 | B for `const' member functions. | |
985 | C for `volatile' member functions. | |
986 | D for `const volatile' member functions. */ | |
987 | if (TYPE_READONLY (TREE_TYPE (firstarg))) | |
988 | c1 += 1; | |
989 | if (TYPE_VOLATILE (TREE_TYPE (firstarg))) | |
990 | c1 += 2; | |
991 | ||
992 | if (DECL_VINDEX (decl)) | |
993 | c2 = '*'; | |
994 | else | |
995 | c2 = '.'; | |
996 | } | |
997 | ||
998 | fprintf (asmfile, ":%s;%c%c%c", debug_name, | |
665f2503 RK |
999 | TREE_PRIVATE (decl) ? '0' |
1000 | : TREE_PROTECTED (decl) ? '1' : '2', c1, c2); | |
00fe048c RS |
1001 | CHARS (IDENTIFIER_LENGTH (DECL_ASSEMBLER_NAME (decl)) + 6 |
1002 | - (debug_name - IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl)))); | |
665f2503 RK |
1003 | |
1004 | if (DECL_VINDEX (decl) && host_integerp (DECL_VINDEX (decl), 0)) | |
00fe048c | 1005 | { |
02e3f1a8 RK |
1006 | print_wide_int (tree_low_cst (DECL_VINDEX (decl), 0)); |
1007 | putc (';', asmfile); | |
1008 | CHARS (1); | |
deda4b76 | 1009 | dbxout_type (DECL_CONTEXT (decl), 0); |
00fe048c | 1010 | fprintf (asmfile, ";"); |
02e3f1a8 | 1011 | CHARS (1); |
00fe048c RS |
1012 | } |
1013 | } | |
1014 | \f | |
1015 | /* Subroutine of `dbxout_type'. Output debug info about the methods defined | |
1016 | in TYPE. */ | |
1017 | ||
1018 | static void | |
7080f735 | 1019 | dbxout_type_methods (tree type) |
00fe048c RS |
1020 | { |
1021 | /* C++: put out the method names and their parameter lists */ | |
00fe048c | 1022 | tree methods = TYPE_METHODS (type); |
95f2ba07 | 1023 | tree type_encoding; |
b3694847 SS |
1024 | tree fndecl; |
1025 | tree last; | |
9161aa96 | 1026 | char formatted_type_identifier_length[16]; |
b3694847 | 1027 | int type_identifier_length; |
00fe048c RS |
1028 | |
1029 | if (methods == NULL_TREE) | |
1030 | return; | |
1031 | ||
3a7587e4 | 1032 | type_encoding = DECL_NAME (TYPE_NAME (type)); |
95f2ba07 | 1033 | |
68597413 | 1034 | #if 0 |
95f2ba07 KR |
1035 | /* C++: Template classes break some assumptions made by this code about |
1036 | the class names, constructor names, and encodings for assembler | |
1037 | label names. For now, disable output of dbx info for them. */ | |
1038 | { | |
a996cbd4 | 1039 | const char *ptr = IDENTIFIER_POINTER (type_encoding); |
1527c38f | 1040 | /* This should use index. (mrs) */ |
95f2ba07 KR |
1041 | while (*ptr && *ptr != '<') ptr++; |
1042 | if (*ptr != 0) | |
1043 | { | |
1044 | static int warned; | |
1045 | if (!warned) | |
95f2ba07 | 1046 | warned = 1; |
95f2ba07 KR |
1047 | return; |
1048 | } | |
1049 | } | |
68597413 | 1050 | #endif |
95f2ba07 | 1051 | |
3a7587e4 | 1052 | type_identifier_length = IDENTIFIER_LENGTH (type_encoding); |
95f2ba07 | 1053 | |
deda4b76 | 1054 | sprintf (formatted_type_identifier_length, "%d", type_identifier_length); |
9161aa96 | 1055 | |
6d89b990 | 1056 | if (TREE_CODE (methods) != TREE_VEC) |
d26ab756 RS |
1057 | fndecl = methods; |
1058 | else if (TREE_VEC_ELT (methods, 0) != NULL_TREE) | |
00fe048c | 1059 | fndecl = TREE_VEC_ELT (methods, 0); |
196cedd0 RS |
1060 | else |
1061 | fndecl = TREE_VEC_ELT (methods, 1); | |
00fe048c | 1062 | |
00fe048c RS |
1063 | while (fndecl) |
1064 | { | |
b1a86a99 JM |
1065 | int need_prefix = 1; |
1066 | ||
3a7587e4 RS |
1067 | /* Group together all the methods for the same operation. |
1068 | These differ in the types of the arguments. */ | |
00fe048c RS |
1069 | for (last = NULL_TREE; |
1070 | fndecl && (last == NULL_TREE || DECL_NAME (fndecl) == DECL_NAME (last)); | |
1071 | fndecl = TREE_CHAIN (fndecl)) | |
1072 | /* Output the name of the field (after overloading), as | |
1073 | well as the name of the field before overloading, along | |
1074 | with its parameter list */ | |
1075 | { | |
3a7587e4 RS |
1076 | /* This is the "mangled" name of the method. |
1077 | It encodes the argument types. */ | |
92643fea | 1078 | const char *debug_name; |
00fe048c | 1079 | |
92643fea MM |
1080 | /* Skip methods that aren't FUNCTION_DECLs. (In C++, these |
1081 | include TEMPLATE_DECLs.) The debugger doesn't know what | |
1082 | to do with such entities anyhow. */ | |
1083 | if (TREE_CODE (fndecl) != FUNCTION_DECL) | |
1084 | continue; | |
1085 | ||
02e3f1a8 | 1086 | debug_name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (fndecl)); |
92643fea | 1087 | |
00fe048c RS |
1088 | CONTIN; |
1089 | ||
1090 | last = fndecl; | |
3a7587e4 | 1091 | |
5daf7c0a JM |
1092 | /* Also ignore abstract methods; those are only interesting to |
1093 | the DWARF backends. */ | |
1094 | if (DECL_IGNORED_P (fndecl) || DECL_ABSTRACT (fndecl)) | |
3a7587e4 RS |
1095 | continue; |
1096 | ||
b1a86a99 JM |
1097 | /* Redundantly output the plain name, since that's what gdb |
1098 | expects. */ | |
1099 | if (need_prefix) | |
1100 | { | |
1101 | tree name = DECL_NAME (fndecl); | |
1102 | fprintf (asmfile, "%s::", IDENTIFIER_POINTER (name)); | |
1103 | CHARS (IDENTIFIER_LENGTH (name) + 2); | |
1104 | need_prefix = 0; | |
1105 | } | |
1106 | ||
deda4b76 | 1107 | dbxout_type (TREE_TYPE (fndecl), 0); |
3a7587e4 | 1108 | |
00fe048c RS |
1109 | dbxout_type_method_1 (fndecl, debug_name); |
1110 | } | |
b1a86a99 JM |
1111 | if (!need_prefix) |
1112 | { | |
3a538a66 | 1113 | putc (';', asmfile); |
b1a86a99 JM |
1114 | CHARS (1); |
1115 | } | |
00fe048c RS |
1116 | } |
1117 | } | |
b238f8de PB |
1118 | |
1119 | /* Emit a "range" type specification, which has the form: | |
1120 | "r<index type>;<lower bound>;<upper bound>;". | |
0f41302f | 1121 | TYPE is an INTEGER_TYPE. */ |
b238f8de PB |
1122 | |
1123 | static void | |
7080f735 | 1124 | dbxout_range_type (tree type) |
b238f8de PB |
1125 | { |
1126 | fprintf (asmfile, "r"); | |
6c73937e | 1127 | if (TREE_TYPE (type)) |
deda4b76 | 1128 | dbxout_type (TREE_TYPE (type), 0); |
d0310c53 | 1129 | else if (TREE_CODE (type) != INTEGER_TYPE) |
deda4b76 | 1130 | dbxout_type (type, 0); /* E.g. Pascal's ARRAY [BOOLEAN] of INTEGER */ |
b238f8de PB |
1131 | else |
1132 | { | |
7ae6c858 PB |
1133 | /* Traditionally, we made sure 'int' was type 1, and builtin types |
1134 | were defined to be sub-ranges of int. Unfortunately, this | |
1135 | does not allow us to distinguish true sub-ranges from integer | |
1136 | types. So, instead we define integer (non-sub-range) types as | |
28144186 JW |
1137 | sub-ranges of themselves. This matters for Chill. If this isn't |
1138 | a subrange type, then we want to define it in terms of itself. | |
1139 | However, in C, this may be an anonymous integer type, and we don't | |
1140 | want to emit debug info referring to it. Just calling | |
1141 | dbxout_type_index won't work anyways, because the type hasn't been | |
1142 | defined yet. We make this work for both cases by checked to see | |
1143 | whether this is a defined type, referring to it if it is, and using | |
1144 | 'int' otherwise. */ | |
1145 | if (TYPE_SYMTAB_ADDRESS (type) != 0) | |
1146 | dbxout_type_index (type); | |
1147 | else | |
1148 | dbxout_type_index (integer_type_node); | |
b238f8de | 1149 | } |
665f2503 RK |
1150 | |
1151 | if (TYPE_MIN_VALUE (type) != 0 | |
1152 | && host_integerp (TYPE_MIN_VALUE (type), 0)) | |
fb2c5c00 | 1153 | { |
02e3f1a8 RK |
1154 | putc (';', asmfile); |
1155 | CHARS (1); | |
39d658e3 JB |
1156 | if (print_int_cst_bounds_in_octal_p (type)) |
1157 | print_int_cst_octal (TYPE_MIN_VALUE (type)); | |
1158 | else | |
1159 | print_wide_int (tree_low_cst (TYPE_MIN_VALUE (type), 0)); | |
fb2c5c00 | 1160 | } |
b238f8de | 1161 | else |
02e3f1a8 RK |
1162 | { |
1163 | fprintf (asmfile, ";0"); | |
1164 | CHARS (2); | |
1165 | } | |
665f2503 RK |
1166 | |
1167 | if (TYPE_MAX_VALUE (type) != 0 | |
1168 | && host_integerp (TYPE_MAX_VALUE (type), 0)) | |
fb2c5c00 | 1169 | { |
02e3f1a8 RK |
1170 | putc (';', asmfile); |
1171 | CHARS (1); | |
39d658e3 JB |
1172 | if (print_int_cst_bounds_in_octal_p (type)) |
1173 | print_int_cst_octal (TYPE_MAX_VALUE (type)); | |
1174 | else | |
1175 | print_wide_int (tree_low_cst (TYPE_MAX_VALUE (type), 0)); | |
02e3f1a8 RK |
1176 | putc (';', asmfile); |
1177 | CHARS (1); | |
fb2c5c00 | 1178 | } |
b238f8de | 1179 | else |
02e3f1a8 RK |
1180 | { |
1181 | fprintf (asmfile, ";-1;"); | |
1182 | CHARS (4); | |
1183 | } | |
b238f8de | 1184 | } |
00fe048c | 1185 | \f |
6a08f7b3 | 1186 | |
00fe048c RS |
1187 | /* Output a reference to a type. If the type has not yet been |
1188 | described in the dbx output, output its definition now. | |
1189 | For a type already defined, just refer to its definition | |
1190 | using the type number. | |
1191 | ||
1192 | If FULL is nonzero, and the type has been described only with | |
1193 | a forward-reference, output the definition now. | |
1194 | If FULL is zero in this case, just refer to the forward-reference | |
deda4b76 | 1195 | using the number previously allocated. */ |
00fe048c RS |
1196 | |
1197 | static void | |
7080f735 | 1198 | dbxout_type (tree type, int full) |
00fe048c | 1199 | { |
b3694847 | 1200 | tree tem; |
821adc5e | 1201 | tree main_variant; |
35571e38 | 1202 | static int anonymous_type_number = 0; |
00fe048c | 1203 | |
4061f623 | 1204 | if (TREE_CODE (type) == VECTOR_TYPE) |
489d6e8e DJ |
1205 | /* The frontend feeds us a representation for the vector as a struct |
1206 | containing an array. Pull out the array type. */ | |
1207 | type = TREE_TYPE (TYPE_FIELDS (TYPE_DEBUG_REPRESENTATION_TYPE (type))); | |
4061f623 | 1208 | |
00fe048c RS |
1209 | /* If there was an input error and we don't really have a type, |
1210 | avoid crashing and write something that is at least valid | |
1211 | by assuming `int'. */ | |
1212 | if (type == error_mark_node) | |
1213 | type = integer_type_node; | |
5bfaaeda | 1214 | else |
00fe048c | 1215 | { |
00fe048c RS |
1216 | if (TYPE_NAME (type) |
1217 | && TREE_CODE (TYPE_NAME (type)) == TYPE_DECL | |
326af3bf | 1218 | && TYPE_DECL_SUPPRESS_DEBUG (TYPE_NAME (type))) |
00fe048c RS |
1219 | full = 0; |
1220 | } | |
1221 | ||
821adc5e JM |
1222 | /* Try to find the "main variant" with the same name. */ |
1223 | if (TYPE_NAME (type) && TREE_CODE (TYPE_NAME (type)) == TYPE_DECL | |
1224 | && DECL_ORIGINAL_TYPE (TYPE_NAME (type))) | |
1225 | main_variant = TREE_TYPE (TYPE_NAME (type)); | |
1226 | else | |
1227 | main_variant = TYPE_MAIN_VARIANT (type); | |
1228 | ||
1229 | /* If we are not using extensions, stabs does not distinguish const and | |
1230 | volatile, so there is no need to make them separate types. */ | |
1231 | if (!use_gnu_debug_info_extensions) | |
1232 | type = main_variant; | |
1233 | ||
00fe048c RS |
1234 | if (TYPE_SYMTAB_ADDRESS (type) == 0) |
1235 | { | |
1236 | /* Type has no dbx number assigned. Assign next available number. */ | |
1237 | TYPE_SYMTAB_ADDRESS (type) = next_type_number++; | |
1238 | ||
1239 | /* Make sure type vector is long enough to record about this type. */ | |
1240 | ||
1241 | if (next_type_number == typevec_len) | |
1242 | { | |
e3da301d | 1243 | typevec |
703ad42b KG |
1244 | = ggc_realloc (typevec, (typevec_len * 2 * sizeof typevec[0])); |
1245 | memset (typevec + typevec_len, 0, typevec_len * sizeof typevec[0]); | |
00fe048c RS |
1246 | typevec_len *= 2; |
1247 | } | |
4bcaafd9 ILT |
1248 | |
1249 | #ifdef DBX_USE_BINCL | |
33e9d2aa | 1250 | emit_pending_bincls_if_required (); |
e3da301d MS |
1251 | typevec[TYPE_SYMTAB_ADDRESS (type)].file_number |
1252 | = current_file->file_number; | |
1253 | typevec[TYPE_SYMTAB_ADDRESS (type)].type_number | |
1254 | = current_file->next_type_number++; | |
4bcaafd9 | 1255 | #endif |
00fe048c RS |
1256 | } |
1257 | ||
6a08f7b3 DP |
1258 | if (flag_debug_only_used_symbols) |
1259 | { | |
1260 | if ((TREE_CODE (type) == RECORD_TYPE | |
1261 | || TREE_CODE (type) == UNION_TYPE | |
1262 | || TREE_CODE (type) == QUAL_UNION_TYPE | |
1263 | || TREE_CODE (type) == ENUMERAL_TYPE) | |
1264 | && TYPE_STUB_DECL (type) | |
1265 | && TREE_CODE_CLASS (TREE_CODE (TYPE_STUB_DECL (type))) == 'd' | |
1266 | && ! DECL_IGNORED_P (TYPE_STUB_DECL (type))) | |
1267 | debug_queue_symbol (TYPE_STUB_DECL (type)); | |
1268 | else if (TYPE_NAME (type) | |
1269 | && TREE_CODE (TYPE_NAME (type)) == TYPE_DECL) | |
1270 | debug_queue_symbol (TYPE_NAME (type)); | |
1271 | } | |
7080f735 | 1272 | |
00fe048c | 1273 | /* Output the number of this type, to refer to it. */ |
4bcaafd9 | 1274 | dbxout_type_index (type); |
00fe048c | 1275 | |
b372168c MM |
1276 | #ifdef DBX_TYPE_DEFINED |
1277 | if (DBX_TYPE_DEFINED (type)) | |
1278 | return; | |
1279 | #endif | |
1280 | ||
00fe048c RS |
1281 | /* If this type's definition has been output or is now being output, |
1282 | that is all. */ | |
1283 | ||
4bcaafd9 | 1284 | switch (typevec[TYPE_SYMTAB_ADDRESS (type)].status) |
00fe048c RS |
1285 | { |
1286 | case TYPE_UNSEEN: | |
1287 | break; | |
1288 | case TYPE_XREF: | |
dad0145a RS |
1289 | /* If we have already had a cross reference, |
1290 | and either that's all we want or that's the best we could do, | |
1291 | don't repeat the cross reference. | |
1292 | Sun dbx crashes if we do. */ | |
d0f062fb | 1293 | if (! full || !COMPLETE_TYPE_P (type) |
dad0145a | 1294 | /* No way in DBX fmt to describe a variable size. */ |
3342b6fd | 1295 | || ! host_integerp (TYPE_SIZE (type), 1)) |
00fe048c RS |
1296 | return; |
1297 | break; | |
1298 | case TYPE_DEFINED: | |
1299 | return; | |
1300 | } | |
1301 | ||
1302 | #ifdef DBX_NO_XREFS | |
1303 | /* For systems where dbx output does not allow the `=xsNAME:' syntax, | |
1304 | leave the type-number completely undefined rather than output | |
e65f61cf JW |
1305 | a cross-reference. If we have already used GNU debug info extensions, |
1306 | then it is OK to output a cross reference. This is necessary to get | |
1307 | proper C++ debug output. */ | |
1308 | if ((TREE_CODE (type) == RECORD_TYPE || TREE_CODE (type) == UNION_TYPE | |
1309 | || TREE_CODE (type) == QUAL_UNION_TYPE | |
1310 | || TREE_CODE (type) == ENUMERAL_TYPE) | |
1311 | && ! use_gnu_debug_info_extensions) | |
e8fca6ce JW |
1312 | /* We must use the same test here as we use twice below when deciding |
1313 | whether to emit a cross-reference. */ | |
1314 | if ((TYPE_NAME (type) != 0 | |
1315 | && ! (TREE_CODE (TYPE_NAME (type)) == TYPE_DECL | |
1316 | && DECL_IGNORED_P (TYPE_NAME (type))) | |
1317 | && !full) | |
d0f062fb | 1318 | || !COMPLETE_TYPE_P (type) |
e8fca6ce | 1319 | /* No way in DBX fmt to describe a variable size. */ |
3342b6fd | 1320 | || ! host_integerp (TYPE_SIZE (type), 1)) |
00fe048c | 1321 | { |
4bcaafd9 | 1322 | typevec[TYPE_SYMTAB_ADDRESS (type)].status = TYPE_XREF; |
00fe048c RS |
1323 | return; |
1324 | } | |
1325 | #endif | |
1326 | ||
1327 | /* Output a definition now. */ | |
1328 | ||
1329 | fprintf (asmfile, "="); | |
1330 | CHARS (1); | |
1331 | ||
1332 | /* Mark it as defined, so that if it is self-referent | |
1333 | we will not get into an infinite recursion of definitions. */ | |
1334 | ||
4bcaafd9 | 1335 | typevec[TYPE_SYMTAB_ADDRESS (type)].status = TYPE_DEFINED; |
00fe048c | 1336 | |
821adc5e JM |
1337 | /* If this type is a variant of some other, hand off. Types with |
1338 | different names are usefully distinguished. We only distinguish | |
1339 | cv-qualified types if we're using extensions. */ | |
1340 | if (TYPE_READONLY (type) > TYPE_READONLY (main_variant)) | |
1341 | { | |
1342 | putc ('k', asmfile); | |
1343 | CHARS (1); | |
1344 | dbxout_type (build_type_variant (type, 0, TYPE_VOLATILE (type)), 0); | |
1345 | return; | |
1346 | } | |
1347 | else if (TYPE_VOLATILE (type) > TYPE_VOLATILE (main_variant)) | |
1348 | { | |
1349 | putc ('B', asmfile); | |
1350 | CHARS (1); | |
1351 | dbxout_type (build_type_variant (type, TYPE_READONLY (type), 0), 0); | |
1352 | return; | |
1353 | } | |
1354 | else if (main_variant != TYPE_MAIN_VARIANT (type)) | |
1355 | { | |
6a08f7b3 DP |
1356 | if (flag_debug_only_used_symbols) |
1357 | { | |
1358 | tree orig_type = DECL_ORIGINAL_TYPE (TYPE_NAME (type)); | |
1359 | ||
7080f735 | 1360 | if ((TREE_CODE (orig_type) == RECORD_TYPE |
6a08f7b3 DP |
1361 | || TREE_CODE (orig_type) == UNION_TYPE |
1362 | || TREE_CODE (orig_type) == QUAL_UNION_TYPE | |
1363 | || TREE_CODE (orig_type) == ENUMERAL_TYPE) | |
1364 | && TYPE_STUB_DECL (orig_type) | |
1365 | && ! DECL_IGNORED_P (TYPE_STUB_DECL (orig_type))) | |
1366 | debug_queue_symbol (TYPE_STUB_DECL (orig_type)); | |
1367 | } | |
821adc5e | 1368 | /* 'type' is a typedef; output the type it refers to. */ |
deda4b76 | 1369 | dbxout_type (DECL_ORIGINAL_TYPE (TYPE_NAME (type)), 0); |
79afd906 PB |
1370 | return; |
1371 | } | |
821adc5e | 1372 | /* else continue. */ |
79afd906 | 1373 | |
00fe048c RS |
1374 | switch (TREE_CODE (type)) |
1375 | { | |
1376 | case VOID_TYPE: | |
1377 | case LANG_TYPE: | |
1378 | /* For a void type, just define it as itself; ie, "5=5". | |
1379 | This makes us consider it defined | |
1380 | without saying what it is. The debugger will make it | |
1381 | a void type when the reference is seen, and nothing will | |
1382 | ever override that default. */ | |
4bcaafd9 | 1383 | dbxout_type_index (type); |
00fe048c RS |
1384 | break; |
1385 | ||
1386 | case INTEGER_TYPE: | |
1387 | if (type == char_type_node && ! TREE_UNSIGNED (type)) | |
4bcaafd9 ILT |
1388 | { |
1389 | /* Output the type `char' as a subrange of itself! | |
1390 | I don't understand this definition, just copied it | |
1391 | from the output of pcc. | |
1392 | This used to use `r2' explicitly and we used to | |
1393 | take care to make sure that `char' was type number 2. */ | |
1394 | fprintf (asmfile, "r"); | |
02e3f1a8 | 1395 | CHARS (1); |
4bcaafd9 ILT |
1396 | dbxout_type_index (type); |
1397 | fprintf (asmfile, ";0;127;"); | |
02e3f1a8 | 1398 | CHARS (7); |
4bcaafd9 | 1399 | } |
14a774a9 RK |
1400 | |
1401 | /* If this is a subtype of another integer type, always prefer to | |
1402 | write it as a subtype. */ | |
1403 | else if (TREE_TYPE (type) != 0 | |
3342b6fd | 1404 | && TREE_CODE (TREE_TYPE (type)) == INTEGER_TYPE) |
3a538a66 | 1405 | { |
ea619b46 JB |
1406 | /* If the size is non-standard, say what it is if we can use |
1407 | GDB extensions. */ | |
1408 | ||
1409 | if (use_gnu_debug_info_extensions | |
1410 | && TYPE_PRECISION (type) != TYPE_PRECISION (integer_type_node)) | |
1411 | { | |
1412 | have_used_extensions = 1; | |
1413 | fprintf (asmfile, "@s%d;", TYPE_PRECISION (type)); | |
1414 | CHARS (5); | |
1415 | } | |
1416 | ||
1417 | dbxout_range_type (type); | |
3a538a66 | 1418 | } |
14a774a9 RK |
1419 | |
1420 | else | |
3a538a66 | 1421 | { |
14a774a9 RK |
1422 | /* If the size is non-standard, say what it is if we can use |
1423 | GDB extensions. */ | |
1424 | ||
1425 | if (use_gnu_debug_info_extensions | |
1426 | && TYPE_PRECISION (type) != TYPE_PRECISION (integer_type_node)) | |
02e3f1a8 RK |
1427 | { |
1428 | have_used_extensions = 1; | |
1429 | fprintf (asmfile, "@s%d;", TYPE_PRECISION (type)); | |
1430 | CHARS (5); | |
1431 | } | |
14a774a9 | 1432 | |
7080f735 | 1433 | if (print_int_cst_bounds_in_octal_p (type)) |
14a774a9 RK |
1434 | { |
1435 | fprintf (asmfile, "r"); | |
02e3f1a8 | 1436 | CHARS (1); |
08b0f5f9 JB |
1437 | |
1438 | /* If this type derives from another type, output type index of | |
1439 | parent type. This is particularly important when parent type | |
1440 | is an enumerated type, because not generating the parent type | |
1441 | index would transform the definition of this enumerated type | |
1442 | into a plain unsigned type. */ | |
1443 | if (TREE_TYPE (type) != 0) | |
1444 | dbxout_type_index (TREE_TYPE (type)); | |
1445 | else | |
1446 | dbxout_type_index (type); | |
1447 | ||
14a774a9 | 1448 | fprintf (asmfile, ";"); |
02e3f1a8 | 1449 | CHARS (1); |
14a774a9 RK |
1450 | print_int_cst_octal (TYPE_MIN_VALUE (type)); |
1451 | fprintf (asmfile, ";"); | |
02e3f1a8 | 1452 | CHARS (1); |
14a774a9 RK |
1453 | print_int_cst_octal (TYPE_MAX_VALUE (type)); |
1454 | fprintf (asmfile, ";"); | |
02e3f1a8 | 1455 | CHARS (1); |
14a774a9 RK |
1456 | } |
1457 | ||
1458 | else | |
1459 | /* Output other integer types as subranges of `int'. */ | |
1460 | dbxout_range_type (type); | |
3a538a66 | 1461 | } |
14a774a9 | 1462 | |
00fe048c RS |
1463 | break; |
1464 | ||
1465 | case REAL_TYPE: | |
1466 | /* This used to say `r1' and we used to take care | |
1467 | to make sure that `int' was type number 1. */ | |
4bcaafd9 | 1468 | fprintf (asmfile, "r"); |
02e3f1a8 | 1469 | CHARS (1); |
4bcaafd9 | 1470 | dbxout_type_index (integer_type_node); |
02e3f1a8 RK |
1471 | putc (';', asmfile); |
1472 | CHARS (1); | |
1473 | print_wide_int (int_size_in_bytes (type)); | |
e003ca80 | 1474 | fputs (";0;", asmfile); |
02e3f1a8 | 1475 | CHARS (3); |
00fe048c RS |
1476 | break; |
1477 | ||
15a5b8a2 | 1478 | case CHAR_TYPE: |
72db60c6 | 1479 | if (use_gnu_debug_info_extensions) |
e003ca80 | 1480 | { |
02e3f1a8 | 1481 | have_used_extensions = 1; |
e003ca80 | 1482 | fputs ("@s", asmfile); |
02e3f1a8 RK |
1483 | CHARS (2); |
1484 | print_wide_int (BITS_PER_UNIT * int_size_in_bytes (type)); | |
e003ca80 | 1485 | fputs (";-20;", asmfile); |
02e3f1a8 | 1486 | CHARS (4); |
e003ca80 | 1487 | } |
72db60c6 | 1488 | else |
4bcaafd9 ILT |
1489 | { |
1490 | /* Output the type `char' as a subrange of itself. | |
1491 | That is what pcc seems to do. */ | |
1492 | fprintf (asmfile, "r"); | |
02e3f1a8 | 1493 | CHARS (1); |
4bcaafd9 ILT |
1494 | dbxout_type_index (char_type_node); |
1495 | fprintf (asmfile, ";0;%d;", TREE_UNSIGNED (type) ? 255 : 127); | |
02e3f1a8 | 1496 | CHARS (7); |
4bcaafd9 | 1497 | } |
15a5b8a2 RS |
1498 | break; |
1499 | ||
72db60c6 PB |
1500 | case BOOLEAN_TYPE: |
1501 | if (use_gnu_debug_info_extensions) | |
e003ca80 | 1502 | { |
02e3f1a8 | 1503 | have_used_extensions = 1; |
e003ca80 | 1504 | fputs ("@s", asmfile); |
02e3f1a8 RK |
1505 | CHARS (2); |
1506 | print_wide_int (BITS_PER_UNIT * int_size_in_bytes (type)); | |
e003ca80 | 1507 | fputs (";-16;", asmfile); |
02e3f1a8 | 1508 | CHARS (4); |
e003ca80 | 1509 | } |
72db60c6 | 1510 | else /* Define as enumeral type (False, True) */ |
02e3f1a8 RK |
1511 | { |
1512 | fprintf (asmfile, "eFalse:0,True:1,;"); | |
1513 | CHARS (17); | |
1514 | } | |
15a5b8a2 RS |
1515 | break; |
1516 | ||
1517 | case FILE_TYPE: | |
1518 | putc ('d', asmfile); | |
1519 | CHARS (1); | |
deda4b76 | 1520 | dbxout_type (TREE_TYPE (type), 0); |
15a5b8a2 RS |
1521 | break; |
1522 | ||
1523 | case COMPLEX_TYPE: | |
3a7cbb76 ZW |
1524 | /* Differs from the REAL_TYPE by its new data type number. |
1525 | R3 is NF_COMPLEX. We don't try to use any of the other NF_* | |
1526 | codes since gdb doesn't care anyway. */ | |
15a5b8a2 RS |
1527 | |
1528 | if (TREE_CODE (TREE_TYPE (type)) == REAL_TYPE) | |
1529 | { | |
3a7cbb76 ZW |
1530 | fputs ("R3;", asmfile); |
1531 | CHARS (3); | |
02e3f1a8 | 1532 | print_wide_int (2 * int_size_in_bytes (TREE_TYPE (type))); |
e003ca80 | 1533 | fputs (";0;", asmfile); |
02e3f1a8 | 1534 | CHARS (3); |
47cc012b RS |
1535 | } |
1536 | else | |
1537 | { | |
1538 | /* Output a complex integer type as a structure, | |
1539 | pending some other way to do it. */ | |
02e3f1a8 RK |
1540 | putc ('s', asmfile); |
1541 | CHARS (1); | |
1542 | print_wide_int (int_size_in_bytes (type)); | |
47cc012b | 1543 | fprintf (asmfile, "real:"); |
02e3f1a8 RK |
1544 | CHARS (5); |
1545 | ||
deda4b76 | 1546 | dbxout_type (TREE_TYPE (type), 0); |
02e3f1a8 RK |
1547 | fprintf (asmfile, ",0,%d;", TYPE_PRECISION (TREE_TYPE (type))); |
1548 | CHARS (7); | |
47cc012b RS |
1549 | fprintf (asmfile, "imag:"); |
1550 | CHARS (5); | |
deda4b76 | 1551 | dbxout_type (TREE_TYPE (type), 0); |
02e3f1a8 | 1552 | fprintf (asmfile, ",%d,%d;;", TYPE_PRECISION (TREE_TYPE (type)), |
47cc012b | 1553 | TYPE_PRECISION (TREE_TYPE (type))); |
02e3f1a8 | 1554 | CHARS (10); |
47cc012b | 1555 | } |
15a5b8a2 RS |
1556 | break; |
1557 | ||
1558 | case SET_TYPE: | |
4042d440 PB |
1559 | if (use_gnu_debug_info_extensions) |
1560 | { | |
1561 | have_used_extensions = 1; | |
e003ca80 | 1562 | fputs ("@s", asmfile); |
02e3f1a8 RK |
1563 | CHARS (2); |
1564 | print_wide_int (BITS_PER_UNIT * int_size_in_bytes (type)); | |
1565 | putc (';', asmfile); | |
1566 | CHARS (1); | |
1567 | ||
4042d440 | 1568 | /* Check if a bitstring type, which in Chill is |
0f41302f | 1569 | different from a [power]set. */ |
4042d440 | 1570 | if (TYPE_STRING_FLAG (type)) |
02e3f1a8 RK |
1571 | { |
1572 | fprintf (asmfile, "@S;"); | |
1573 | CHARS (3); | |
1574 | } | |
4042d440 | 1575 | } |
15a5b8a2 RS |
1576 | putc ('S', asmfile); |
1577 | CHARS (1); | |
deda4b76 | 1578 | dbxout_type (TYPE_DOMAIN (type), 0); |
15a5b8a2 RS |
1579 | break; |
1580 | ||
00fe048c | 1581 | case ARRAY_TYPE: |
202fe2d6 DB |
1582 | /* Make arrays of packed bits look like bitstrings for chill. */ |
1583 | if (TYPE_PACKED (type) && use_gnu_debug_info_extensions) | |
1584 | { | |
1585 | have_used_extensions = 1; | |
1586 | fputs ("@s", asmfile); | |
02e3f1a8 RK |
1587 | CHARS (2); |
1588 | print_wide_int (BITS_PER_UNIT * int_size_in_bytes (type)); | |
1589 | fprintf (asmfile, ";@S;S"); | |
1590 | CHARS (5); | |
deda4b76 | 1591 | dbxout_type (TYPE_DOMAIN (type), 0); |
202fe2d6 DB |
1592 | break; |
1593 | } | |
02e3f1a8 | 1594 | |
00fe048c RS |
1595 | /* Output "a" followed by a range type definition |
1596 | for the index type of the array | |
1597 | followed by a reference to the target-type. | |
b238f8de | 1598 | ar1;0;N;M for a C array of type M and size N+1. */ |
4042d440 | 1599 | /* Check if a character string type, which in Chill is |
0f41302f | 1600 | different from an array of characters. */ |
4042d440 PB |
1601 | if (TYPE_STRING_FLAG (type) && use_gnu_debug_info_extensions) |
1602 | { | |
1603 | have_used_extensions = 1; | |
1604 | fprintf (asmfile, "@S;"); | |
02e3f1a8 | 1605 | CHARS (3); |
4042d440 | 1606 | } |
b238f8de PB |
1607 | tem = TYPE_DOMAIN (type); |
1608 | if (tem == NULL) | |
4bcaafd9 ILT |
1609 | { |
1610 | fprintf (asmfile, "ar"); | |
02e3f1a8 | 1611 | CHARS (2); |
4bcaafd9 ILT |
1612 | dbxout_type_index (integer_type_node); |
1613 | fprintf (asmfile, ";0;-1;"); | |
02e3f1a8 | 1614 | CHARS (6); |
4bcaafd9 | 1615 | } |
b238f8de PB |
1616 | else |
1617 | { | |
3f9bafd7 | 1618 | fprintf (asmfile, "a"); |
02e3f1a8 | 1619 | CHARS (1); |
b238f8de PB |
1620 | dbxout_range_type (tem); |
1621 | } | |
02e3f1a8 | 1622 | |
deda4b76 | 1623 | dbxout_type (TREE_TYPE (type), 0); |
00fe048c RS |
1624 | break; |
1625 | ||
1626 | case RECORD_TYPE: | |
1627 | case UNION_TYPE: | |
c1b98a95 | 1628 | case QUAL_UNION_TYPE: |
00fe048c RS |
1629 | { |
1630 | int i, n_baseclasses = 0; | |
1631 | ||
598fc152 PB |
1632 | if (TYPE_BINFO (type) != 0 |
1633 | && TREE_CODE (TYPE_BINFO (type)) == TREE_VEC | |
1634 | && TYPE_BINFO_BASETYPES (type) != 0) | |
00fe048c RS |
1635 | n_baseclasses = TREE_VEC_LENGTH (TYPE_BINFO_BASETYPES (type)); |
1636 | ||
e8fca6ce JW |
1637 | /* Output a structure type. We must use the same test here as we |
1638 | use in the DBX_NO_XREFS case above. */ | |
b372168c MM |
1639 | if ((TYPE_NAME (type) != 0 |
1640 | && ! (TREE_CODE (TYPE_NAME (type)) == TYPE_DECL | |
1641 | && DECL_IGNORED_P (TYPE_NAME (type))) | |
1642 | && !full) | |
d0f062fb | 1643 | || !COMPLETE_TYPE_P (type) |
3a7587e4 | 1644 | /* No way in DBX fmt to describe a variable size. */ |
3342b6fd | 1645 | || ! host_integerp (TYPE_SIZE (type), 1)) |
00fe048c RS |
1646 | { |
1647 | /* If the type is just a cross reference, output one | |
1648 | and mark the type as partially described. | |
1649 | If it later becomes defined, we will output | |
1650 | its real definition. | |
1651 | If the type has a name, don't nest its definition within | |
1652 | another type's definition; instead, output an xref | |
1653 | and let the definition come when the name is defined. */ | |
913d0833 | 1654 | fputs ((TREE_CODE (type) == RECORD_TYPE) ? "xs" : "xu", asmfile); |
02e3f1a8 | 1655 | CHARS (2); |
95f2ba07 | 1656 | #if 0 /* This assertion is legitimately false in C++. */ |
00fe048c RS |
1657 | /* We shouldn't be outputting a reference to a type before its |
1658 | definition unless the type has a tag name. | |
1659 | A typedef name without a tag name should be impossible. */ | |
1660 | if (TREE_CODE (TYPE_NAME (type)) != IDENTIFIER_NODE) | |
1661 | abort (); | |
1662 | #endif | |
35571e38 RS |
1663 | if (TYPE_NAME (type) != 0) |
1664 | dbxout_type_name (type); | |
1665 | else | |
02e3f1a8 RK |
1666 | { |
1667 | fprintf (asmfile, "$$%d", anonymous_type_number++); | |
1668 | CHARS (5); | |
1669 | } | |
1670 | ||
00fe048c | 1671 | fprintf (asmfile, ":"); |
02e3f1a8 | 1672 | CHARS (1); |
4bcaafd9 | 1673 | typevec[TYPE_SYMTAB_ADDRESS (type)].status = TYPE_XREF; |
00fe048c RS |
1674 | break; |
1675 | } | |
00fe048c | 1676 | |
00fe048c | 1677 | /* Identify record or union, and print its size. */ |
02e3f1a8 RK |
1678 | putc (((TREE_CODE (type) == RECORD_TYPE) ? 's' : 'u'), asmfile); |
1679 | CHARS (1); | |
1680 | print_wide_int (int_size_in_bytes (type)); | |
00fe048c | 1681 | |
196cedd0 | 1682 | if (use_gnu_debug_info_extensions) |
00fe048c RS |
1683 | { |
1684 | if (n_baseclasses) | |
1685 | { | |
1686 | have_used_extensions = 1; | |
1687 | fprintf (asmfile, "!%d,", n_baseclasses); | |
1688 | CHARS (8); | |
1689 | } | |
1690 | } | |
1691 | for (i = 0; i < n_baseclasses; i++) | |
1692 | { | |
dbbf88d1 NS |
1693 | tree binfo = TYPE_BINFO (type); |
1694 | tree child = BINFO_BASETYPE (binfo, i); | |
1695 | tree access = (BINFO_BASEACCESSES (binfo) | |
1696 | ? BINFO_BASEACCESS (binfo, i) : access_public_node); | |
7080f735 | 1697 | |
196cedd0 | 1698 | if (use_gnu_debug_info_extensions) |
00fe048c RS |
1699 | { |
1700 | have_used_extensions = 1; | |
c5ff9123 AP |
1701 | putc (TREE_VIA_VIRTUAL (child) ? '1' : '0', asmfile); |
1702 | putc (access == access_public_node ? '2' : | |
1703 | (access == access_protected_node ? '1' :'0'), | |
1704 | asmfile); | |
02e3f1a8 | 1705 | CHARS (2); |
dbbf88d1 NS |
1706 | if (TREE_VIA_VIRTUAL (child) |
1707 | && strcmp (lang_hooks.name, "GNU C++") == 0) | |
649ce3f2 JM |
1708 | /* For a virtual base, print the (negative) offset within |
1709 | the vtable where we must look to find the necessary | |
1710 | adjustment. */ | |
1711 | print_wide_int (tree_low_cst (BINFO_VPTR_FIELD (child), 0) | |
1712 | * BITS_PER_UNIT); | |
1713 | else | |
1714 | print_wide_int (tree_low_cst (BINFO_OFFSET (child), 0) | |
1715 | * BITS_PER_UNIT); | |
02e3f1a8 RK |
1716 | putc (',', asmfile); |
1717 | CHARS (1); | |
deda4b76 | 1718 | dbxout_type (BINFO_TYPE (child), 0); |
00fe048c | 1719 | putc (';', asmfile); |
02e3f1a8 | 1720 | CHARS (1); |
00fe048c RS |
1721 | } |
1722 | else | |
1723 | { | |
1724 | /* Print out the base class information with fields | |
1725 | which have the same names at the types they hold. */ | |
1726 | dbxout_type_name (BINFO_TYPE (child)); | |
1727 | putc (':', asmfile); | |
02e3f1a8 | 1728 | CHARS (1); |
deda4b76 | 1729 | dbxout_type (BINFO_TYPE (child), full); |
02e3f1a8 RK |
1730 | putc (',', asmfile); |
1731 | CHARS (1); | |
1732 | print_wide_int (tree_low_cst (BINFO_OFFSET (child), 0) | |
1733 | * BITS_PER_UNIT); | |
1734 | putc (',', asmfile); | |
1735 | CHARS (1); | |
b0afa2fc | 1736 | print_wide_int (tree_low_cst (TYPE_SIZE (BINFO_TYPE (child)), |
02e3f1a8 RK |
1737 | 0) |
1738 | * BITS_PER_UNIT); | |
1739 | putc (';', asmfile); | |
1740 | CHARS (1); | |
00fe048c RS |
1741 | } |
1742 | } | |
1743 | } | |
1744 | ||
00fe048c RS |
1745 | /* Write out the field declarations. */ |
1746 | dbxout_type_fields (type); | |
196cedd0 | 1747 | if (use_gnu_debug_info_extensions && TYPE_METHODS (type) != NULL_TREE) |
00fe048c RS |
1748 | { |
1749 | have_used_extensions = 1; | |
1750 | dbxout_type_methods (type); | |
1751 | } | |
665f2503 | 1752 | |
00fe048c | 1753 | putc (';', asmfile); |
02e3f1a8 | 1754 | CHARS (1); |
00fe048c | 1755 | |
196cedd0 | 1756 | if (use_gnu_debug_info_extensions && TREE_CODE (type) == RECORD_TYPE |
00fe048c RS |
1757 | /* Avoid the ~ if we don't really need it--it confuses dbx. */ |
1758 | && TYPE_VFIELD (type)) | |
1759 | { | |
1760 | have_used_extensions = 1; | |
1761 | ||
1762 | /* Tell GDB+ that it may keep reading. */ | |
1763 | putc ('~', asmfile); | |
02e3f1a8 | 1764 | CHARS (1); |
00fe048c RS |
1765 | |
1766 | /* We need to write out info about what field this class | |
1767 | uses as its "main" vtable pointer field, because if this | |
1768 | field is inherited from a base class, GDB cannot necessarily | |
1769 | figure out which field it's using in time. */ | |
1770 | if (TYPE_VFIELD (type)) | |
1771 | { | |
1772 | putc ('%', asmfile); | |
02e3f1a8 | 1773 | CHARS (1); |
deda4b76 | 1774 | dbxout_type (DECL_FCONTEXT (TYPE_VFIELD (type)), 0); |
00fe048c | 1775 | } |
02e3f1a8 | 1776 | |
00fe048c | 1777 | putc (';', asmfile); |
02e3f1a8 | 1778 | CHARS (1); |
00fe048c RS |
1779 | } |
1780 | break; | |
1781 | ||
1782 | case ENUMERAL_TYPE: | |
e8fca6ce JW |
1783 | /* We must use the same test here as we use in the DBX_NO_XREFS case |
1784 | above. We simplify it a bit since an enum will never have a variable | |
1785 | size. */ | |
1786 | if ((TYPE_NAME (type) != 0 | |
1787 | && ! (TREE_CODE (TYPE_NAME (type)) == TYPE_DECL | |
1788 | && DECL_IGNORED_P (TYPE_NAME (type))) | |
1789 | && !full) | |
d0f062fb | 1790 | || !COMPLETE_TYPE_P (type)) |
00fe048c RS |
1791 | { |
1792 | fprintf (asmfile, "xe"); | |
02e3f1a8 | 1793 | CHARS (2); |
00fe048c | 1794 | dbxout_type_name (type); |
4bcaafd9 | 1795 | typevec[TYPE_SYMTAB_ADDRESS (type)].status = TYPE_XREF; |
02e3f1a8 RK |
1796 | putc (':', asmfile); |
1797 | CHARS (1); | |
00fe048c RS |
1798 | return; |
1799 | } | |
71b54b53 PB |
1800 | if (use_gnu_debug_info_extensions |
1801 | && TYPE_PRECISION (type) != TYPE_PRECISION (integer_type_node)) | |
02e3f1a8 RK |
1802 | { |
1803 | fprintf (asmfile, "@s%d;", TYPE_PRECISION (type)); | |
1804 | CHARS (5); | |
1805 | } | |
1806 | ||
00fe048c RS |
1807 | putc ('e', asmfile); |
1808 | CHARS (1); | |
1809 | for (tem = TYPE_VALUES (type); tem; tem = TREE_CHAIN (tem)) | |
1810 | { | |
71f15013 | 1811 | fprintf (asmfile, "%s:", IDENTIFIER_POINTER (TREE_PURPOSE (tem))); |
02e3f1a8 | 1812 | CHARS (IDENTIFIER_LENGTH (TREE_PURPOSE (tem)) + 1); |
71f15013 | 1813 | if (TREE_INT_CST_HIGH (TREE_VALUE (tem)) == 0) |
02e3f1a8 | 1814 | print_wide_int (TREE_INT_CST_LOW (TREE_VALUE (tem))); |
4c3ddf05 | 1815 | else if (TREE_INT_CST_HIGH (TREE_VALUE (tem)) == -1 |
05bccae2 | 1816 | && (HOST_WIDE_INT) TREE_INT_CST_LOW (TREE_VALUE (tem)) < 0) |
02e3f1a8 | 1817 | print_wide_int (TREE_INT_CST_LOW (TREE_VALUE (tem))); |
71f15013 RS |
1818 | else |
1819 | print_int_cst_octal (TREE_VALUE (tem)); | |
02e3f1a8 RK |
1820 | |
1821 | putc (',', asmfile); | |
1822 | CHARS (1); | |
00fe048c | 1823 | if (TREE_CHAIN (tem) != 0) |
02e3f1a8 | 1824 | CONTIN; |
00fe048c | 1825 | } |
02e3f1a8 | 1826 | |
00fe048c RS |
1827 | putc (';', asmfile); |
1828 | CHARS (1); | |
1829 | break; | |
1830 | ||
1831 | case POINTER_TYPE: | |
1832 | putc ('*', asmfile); | |
1833 | CHARS (1); | |
deda4b76 | 1834 | dbxout_type (TREE_TYPE (type), 0); |
00fe048c RS |
1835 | break; |
1836 | ||
1837 | case METHOD_TYPE: | |
196cedd0 | 1838 | if (use_gnu_debug_info_extensions) |
00fe048c RS |
1839 | { |
1840 | have_used_extensions = 1; | |
1841 | putc ('#', asmfile); | |
1842 | CHARS (1); | |
deda4b76 JM |
1843 | |
1844 | /* Write the argument types out longhand. */ | |
1845 | dbxout_type (TYPE_METHOD_BASETYPE (type), 0); | |
1846 | putc (',', asmfile); | |
1847 | CHARS (1); | |
1848 | dbxout_type (TREE_TYPE (type), 0); | |
1849 | dbxout_args (TYPE_ARG_TYPES (type)); | |
1850 | putc (';', asmfile); | |
1851 | CHARS (1); | |
00fe048c RS |
1852 | } |
1853 | else | |
02e3f1a8 RK |
1854 | /* Treat it as a function type. */ |
1855 | dbxout_type (TREE_TYPE (type), 0); | |
00fe048c RS |
1856 | break; |
1857 | ||
1858 | case OFFSET_TYPE: | |
196cedd0 | 1859 | if (use_gnu_debug_info_extensions) |
00fe048c RS |
1860 | { |
1861 | have_used_extensions = 1; | |
1862 | putc ('@', asmfile); | |
1863 | CHARS (1); | |
deda4b76 | 1864 | dbxout_type (TYPE_OFFSET_BASETYPE (type), 0); |
00fe048c RS |
1865 | putc (',', asmfile); |
1866 | CHARS (1); | |
deda4b76 | 1867 | dbxout_type (TREE_TYPE (type), 0); |
00fe048c RS |
1868 | } |
1869 | else | |
02e3f1a8 RK |
1870 | /* Should print as an int, because it is really just an offset. */ |
1871 | dbxout_type (integer_type_node, 0); | |
00fe048c RS |
1872 | break; |
1873 | ||
1874 | case REFERENCE_TYPE: | |
196cedd0 | 1875 | if (use_gnu_debug_info_extensions) |
00fe048c | 1876 | have_used_extensions = 1; |
196cedd0 | 1877 | putc (use_gnu_debug_info_extensions ? '&' : '*', asmfile); |
00fe048c | 1878 | CHARS (1); |
deda4b76 | 1879 | dbxout_type (TREE_TYPE (type), 0); |
00fe048c RS |
1880 | break; |
1881 | ||
1882 | case FUNCTION_TYPE: | |
1883 | putc ('f', asmfile); | |
1884 | CHARS (1); | |
deda4b76 | 1885 | dbxout_type (TREE_TYPE (type), 0); |
00fe048c RS |
1886 | break; |
1887 | ||
1888 | default: | |
1889 | abort (); | |
1890 | } | |
1891 | } | |
1892 | ||
6356f892 | 1893 | /* Return nonzero if the given type represents an integer whose bounds |
39d658e3 JB |
1894 | should be printed in octal format. */ |
1895 | ||
1896 | static bool | |
7080f735 | 1897 | print_int_cst_bounds_in_octal_p (tree type) |
39d658e3 JB |
1898 | { |
1899 | /* If we can use GDB extensions and the size is wider than a long | |
1900 | (the size used by GDB to read them) or we may have trouble writing | |
1901 | the bounds the usual way, write them in octal. Note the test is for | |
1902 | the *target's* size of "long", not that of the host. The host test | |
1903 | is just to make sure we can write it out in case the host wide int | |
1904 | is narrower than the target "long". | |
7080f735 | 1905 | |
39d658e3 JB |
1906 | For unsigned types, we use octal if they are the same size or larger. |
1907 | This is because we print the bounds as signed decimal, and hence they | |
1908 | can't span same size unsigned types. */ | |
1909 | ||
1910 | if (use_gnu_debug_info_extensions | |
1911 | && TYPE_MIN_VALUE (type) != 0 | |
1912 | && TREE_CODE (TYPE_MIN_VALUE (type)) == INTEGER_CST | |
1913 | && TYPE_MAX_VALUE (type) != 0 | |
1914 | && TREE_CODE (TYPE_MAX_VALUE (type)) == INTEGER_CST | |
1915 | && (TYPE_PRECISION (type) > TYPE_PRECISION (integer_type_node) | |
1916 | || ((TYPE_PRECISION (type) == TYPE_PRECISION (integer_type_node)) | |
1917 | && TREE_UNSIGNED (type)) | |
1918 | || TYPE_PRECISION (type) > HOST_BITS_PER_WIDE_INT | |
1919 | || (TYPE_PRECISION (type) == HOST_BITS_PER_WIDE_INT | |
1920 | && TREE_UNSIGNED (type)))) | |
1921 | return TRUE; | |
1922 | else | |
1923 | return FALSE; | |
1924 | } | |
1925 | ||
00fe048c RS |
1926 | /* Print the value of integer constant C, in octal, |
1927 | handling double precision. */ | |
1928 | ||
1929 | static void | |
7080f735 | 1930 | print_int_cst_octal (tree c) |
00fe048c | 1931 | { |
0d92cbff RK |
1932 | unsigned HOST_WIDE_INT high = TREE_INT_CST_HIGH (c); |
1933 | unsigned HOST_WIDE_INT low = TREE_INT_CST_LOW (c); | |
1934 | int excess = (3 - (HOST_BITS_PER_WIDE_INT % 3)); | |
665f2503 | 1935 | unsigned int width = TYPE_PRECISION (TREE_TYPE (c)); |
58133067 RK |
1936 | |
1937 | /* GDB wants constants with no extra leading "1" bits, so | |
1938 | we need to remove any sign-extension that might be | |
1939 | present. */ | |
1940 | if (width == HOST_BITS_PER_WIDE_INT * 2) | |
1941 | ; | |
1942 | else if (width > HOST_BITS_PER_WIDE_INT) | |
1943 | high &= (((HOST_WIDE_INT) 1 << (width - HOST_BITS_PER_WIDE_INT)) - 1); | |
25f3f9bf RK |
1944 | else if (width == HOST_BITS_PER_WIDE_INT) |
1945 | high = 0; | |
1946 | else | |
1947 | high = 0, low &= (((HOST_WIDE_INT) 1 << width) - 1); | |
00fe048c RS |
1948 | |
1949 | fprintf (asmfile, "0"); | |
02e3f1a8 | 1950 | CHARS (1); |
00fe048c RS |
1951 | |
1952 | if (excess == 3) | |
1953 | { | |
0d92cbff RK |
1954 | print_octal (high, HOST_BITS_PER_WIDE_INT / 3); |
1955 | print_octal (low, HOST_BITS_PER_WIDE_INT / 3); | |
00fe048c RS |
1956 | } |
1957 | else | |
1958 | { | |
0d92cbff RK |
1959 | unsigned HOST_WIDE_INT beg = high >> excess; |
1960 | unsigned HOST_WIDE_INT middle | |
1961 | = ((high & (((HOST_WIDE_INT) 1 << excess) - 1)) << (3 - excess) | |
1962 | | (low >> (HOST_BITS_PER_WIDE_INT / 3 * 3))); | |
1963 | unsigned HOST_WIDE_INT end | |
58133067 RK |
1964 | = low & (((unsigned HOST_WIDE_INT) 1 |
1965 | << (HOST_BITS_PER_WIDE_INT / 3 * 3)) | |
1966 | - 1); | |
1967 | ||
af1747ef | 1968 | fprintf (asmfile, "%o%01o", (int) beg, (int) middle); |
02e3f1a8 | 1969 | CHARS (2); |
0d92cbff | 1970 | print_octal (end, HOST_BITS_PER_WIDE_INT / 3); |
00fe048c RS |
1971 | } |
1972 | } | |
1973 | ||
1974 | static void | |
7080f735 | 1975 | print_octal (unsigned HOST_WIDE_INT value, int digits) |
00fe048c RS |
1976 | { |
1977 | int i; | |
1978 | ||
1979 | for (i = digits - 1; i >= 0; i--) | |
af1747ef | 1980 | fprintf (asmfile, "%01o", (int) ((value >> (3 * i)) & 7)); |
02e3f1a8 RK |
1981 | |
1982 | CHARS (digits); | |
00fe048c RS |
1983 | } |
1984 | ||
02e3f1a8 RK |
1985 | /* Output C in decimal while adjusting the number of digits written. */ |
1986 | ||
1987 | static void | |
7080f735 | 1988 | print_wide_int (HOST_WIDE_INT c) |
02e3f1a8 RK |
1989 | { |
1990 | int digs = 0; | |
1991 | ||
1992 | fprintf (asmfile, HOST_WIDE_INT_PRINT_DEC, c); | |
1993 | ||
1994 | if (c < 0) | |
1995 | digs++, c = -c; | |
1996 | ||
1997 | while (c > 0) | |
1998 | c /= 10; digs++; | |
1999 | ||
2000 | CHARS (digs); | |
2001 | } | |
3a538a66 | 2002 | |
00fe048c RS |
2003 | /* Output the name of type TYPE, with no punctuation. |
2004 | Such names can be set up either by typedef declarations | |
2005 | or by struct, enum and union tags. */ | |
2006 | ||
2007 | static void | |
7080f735 | 2008 | dbxout_type_name (tree type) |
00fe048c RS |
2009 | { |
2010 | tree t; | |
2011 | if (TYPE_NAME (type) == 0) | |
2012 | abort (); | |
2013 | if (TREE_CODE (TYPE_NAME (type)) == IDENTIFIER_NODE) | |
2014 | { | |
2015 | t = TYPE_NAME (type); | |
2016 | } | |
2017 | else if (TREE_CODE (TYPE_NAME (type)) == TYPE_DECL) | |
2018 | { | |
2019 | t = DECL_NAME (TYPE_NAME (type)); | |
2020 | } | |
2021 | else | |
2022 | abort (); | |
2023 | ||
2024 | fprintf (asmfile, "%s", IDENTIFIER_POINTER (t)); | |
2025 | CHARS (IDENTIFIER_LENGTH (t)); | |
2026 | } | |
b0a93386 KB |
2027 | |
2028 | /* Output leading leading struct or class names needed for qualifying | |
2029 | type whose scope is limited to a struct or class. */ | |
2030 | ||
2031 | static void | |
7080f735 | 2032 | dbxout_class_name_qualifiers (tree decl) |
b0a93386 KB |
2033 | { |
2034 | tree context = decl_type_context (decl); | |
2035 | ||
7080f735 | 2036 | if (context != NULL_TREE |
b0a93386 | 2037 | && TREE_CODE(context) == RECORD_TYPE |
7080f735 | 2038 | && TYPE_NAME (context) != 0 |
b0a93386 KB |
2039 | && (TREE_CODE (TYPE_NAME (context)) == IDENTIFIER_NODE |
2040 | || (DECL_NAME (TYPE_NAME (context)) != 0))) | |
2041 | { | |
2042 | tree name = TYPE_NAME (context); | |
2043 | ||
33e9d2aa DP |
2044 | emit_pending_bincls_if_required (); |
2045 | ||
b0a93386 KB |
2046 | if (TREE_CODE (name) == TYPE_DECL) |
2047 | { | |
2048 | dbxout_class_name_qualifiers (name); | |
2049 | name = DECL_NAME (name); | |
2050 | } | |
2051 | fprintf (asmfile, "%s::", IDENTIFIER_POINTER (name)); | |
2052 | CHARS (IDENTIFIER_LENGTH (name) + 2); | |
2053 | } | |
2054 | } | |
00fe048c RS |
2055 | \f |
2056 | /* Output a .stabs for the symbol defined by DECL, | |
2057 | which must be a ..._DECL node in the normal namespace. | |
2058 | It may be a CONST_DECL, a FUNCTION_DECL, a PARM_DECL or a VAR_DECL. | |
00262c8a ML |
2059 | LOCAL is nonzero if the scope is less than the entire file. |
2060 | Return 1 if a stabs might have been emitted. */ | |
00fe048c | 2061 | |
00262c8a | 2062 | int |
7080f735 | 2063 | dbxout_symbol (tree decl, int local ATTRIBUTE_UNUSED) |
00fe048c | 2064 | { |
00fe048c RS |
2065 | tree type = TREE_TYPE (decl); |
2066 | tree context = NULL_TREE; | |
00262c8a | 2067 | int result = 0; |
00fe048c | 2068 | |
6a08f7b3 DP |
2069 | /* "Intercept" dbxout_symbol() calls like we do all debug_hooks. */ |
2070 | ++debug_nesting; | |
2071 | ||
00fe048c RS |
2072 | /* Ignore nameless syms, but don't ignore type tags. */ |
2073 | ||
2074 | if ((DECL_NAME (decl) == 0 && TREE_CODE (decl) != TYPE_DECL) | |
2075 | || DECL_IGNORED_P (decl)) | |
6a08f7b3 DP |
2076 | DBXOUT_DECR_NESTING_AND_RETURN (0); |
2077 | ||
e0bb17a8 | 2078 | /* If we are to generate only the symbols actually used then such |
6a08f7b3 DP |
2079 | symbol nodees are flagged with TREE_USED. Ignore any that |
2080 | aren't flaged as TREE_USED. */ | |
7080f735 | 2081 | |
21d13d83 ZW |
2082 | if (flag_debug_only_used_symbols |
2083 | && (!TREE_USED (decl) | |
2084 | && (TREE_CODE (decl) != VAR_DECL || !DECL_INITIAL (decl)))) | |
2085 | DBXOUT_DECR_NESTING_AND_RETURN (0); | |
2086 | ||
2087 | /* If dbxout_init has not yet run, queue this symbol for later. */ | |
2088 | if (!typevec) | |
2089 | { | |
2090 | preinit_symbols = tree_cons (0, decl, preinit_symbols); | |
2091 | DBXOUT_DECR_NESTING_AND_RETURN (0); | |
2092 | } | |
2093 | ||
6a08f7b3 DP |
2094 | if (flag_debug_only_used_symbols) |
2095 | { | |
2096 | tree t; | |
2097 | ||
6a08f7b3 DP |
2098 | /* We now have a used symbol. We need to generate the info for |
2099 | the symbol's type in addition to the symbol itself. These | |
2100 | type symbols are queued to be generated after were done with | |
2101 | the symbol itself (done because the symbol's info is generated | |
2102 | with fprintf's, etc. as it determines what's needed). | |
2103 | ||
2104 | Note, because the TREE_TYPE(type) might be something like a | |
2105 | pointer to a named type we need to look for the first name | |
2106 | we see following the TREE_TYPE chain. */ | |
2107 | ||
7080f735 | 2108 | t = type; |
6a08f7b3 DP |
2109 | while (POINTER_TYPE_P (t)) |
2110 | t = TREE_TYPE (t); | |
2111 | ||
2112 | /* RECORD_TYPE, UNION_TYPE, QUAL_UNION_TYPE, and ENUMERAL_TYPE | |
2113 | need special treatment. The TYPE_STUB_DECL field in these | |
2114 | types generally represents the tag name type we want to | |
2115 | output. In addition there could be a typedef type with | |
2116 | a different name. In that case we also want to output | |
2117 | that. */ | |
2118 | ||
2119 | if ((TREE_CODE (t) == RECORD_TYPE | |
2120 | || TREE_CODE (t) == UNION_TYPE | |
2121 | || TREE_CODE (t) == QUAL_UNION_TYPE | |
2122 | || TREE_CODE (t) == ENUMERAL_TYPE) | |
2123 | && TYPE_STUB_DECL (t) | |
2124 | && TYPE_STUB_DECL (t) != decl | |
2125 | && TREE_CODE_CLASS (TREE_CODE (TYPE_STUB_DECL (t))) == 'd' | |
2126 | && ! DECL_IGNORED_P (TYPE_STUB_DECL (t))) | |
2127 | { | |
2128 | debug_queue_symbol (TYPE_STUB_DECL (t)); | |
2129 | if (TYPE_NAME (t) | |
2130 | && TYPE_NAME (t) != TYPE_STUB_DECL (t) | |
2131 | && TYPE_NAME (t) != decl | |
2132 | && TREE_CODE_CLASS (TREE_CODE (TYPE_NAME (t))) == 'd') | |
2133 | debug_queue_symbol (TYPE_NAME (t)); | |
2134 | } | |
2135 | else if (TYPE_NAME (t) | |
2136 | && TYPE_NAME (t) != decl | |
2137 | && TREE_CODE_CLASS (TREE_CODE (TYPE_NAME (t))) == 'd') | |
2138 | debug_queue_symbol (TYPE_NAME (t)); | |
2139 | } | |
00fe048c | 2140 | |
33e9d2aa DP |
2141 | emit_pending_bincls_if_required (); |
2142 | ||
00fe048c RS |
2143 | dbxout_prepare_symbol (decl); |
2144 | ||
2145 | /* The output will always start with the symbol name, | |
2146 | so always count that in the length-output-so-far. */ | |
2147 | ||
2148 | if (DECL_NAME (decl) != 0) | |
2149 | current_sym_nchars = 2 + IDENTIFIER_LENGTH (DECL_NAME (decl)); | |
2150 | ||
2151 | switch (TREE_CODE (decl)) | |
2152 | { | |
2153 | case CONST_DECL: | |
2154 | /* Enum values are defined by defining the enum type. */ | |
2155 | break; | |
2156 | ||
2157 | case FUNCTION_DECL: | |
2158 | if (DECL_RTL (decl) == 0) | |
6a08f7b3 | 2159 | DBXOUT_DECR_NESTING_AND_RETURN (0); |
0924ddef | 2160 | if (DECL_EXTERNAL (decl)) |
00fe048c RS |
2161 | break; |
2162 | /* Don't mention a nested function under its parent. */ | |
2163 | context = decl_function_context (decl); | |
2164 | if (context == current_function_decl) | |
2165 | break; | |
2166 | if (GET_CODE (DECL_RTL (decl)) != MEM | |
2167 | || GET_CODE (XEXP (DECL_RTL (decl), 0)) != SYMBOL_REF) | |
2168 | break; | |
2169 | FORCE_TEXT; | |
2170 | ||
e8638df0 | 2171 | fprintf (asmfile, "%s\"%s:%c", ASM_STABS_OP, |
00fe048c RS |
2172 | IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl)), |
2173 | TREE_PUBLIC (decl) ? 'F' : 'f'); | |
00262c8a | 2174 | result = 1; |
00fe048c RS |
2175 | |
2176 | current_sym_code = N_FUN; | |
2177 | current_sym_addr = XEXP (DECL_RTL (decl), 0); | |
2178 | ||
2179 | if (TREE_TYPE (type)) | |
deda4b76 | 2180 | dbxout_type (TREE_TYPE (type), 0); |
00fe048c | 2181 | else |
deda4b76 | 2182 | dbxout_type (void_type_node, 0); |
00fe048c RS |
2183 | |
2184 | /* For a nested function, when that function is compiled, | |
2185 | mention the containing function name | |
2186 | as well as (since dbx wants it) our own assembler-name. */ | |
2187 | if (context != 0) | |
2188 | fprintf (asmfile, ",%s,%s", | |
2189 | IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl)), | |
2190 | IDENTIFIER_POINTER (DECL_NAME (context))); | |
2191 | ||
2192 | dbxout_finish_symbol (decl); | |
2193 | break; | |
2194 | ||
2195 | case TYPE_DECL: | |
00fe048c RS |
2196 | /* Don't output the same typedef twice. |
2197 | And don't output what language-specific stuff doesn't want output. */ | |
3a83beef | 2198 | if (TREE_ASM_WRITTEN (decl) || TYPE_DECL_SUPPRESS_DEBUG (decl)) |
6a08f7b3 | 2199 | DBXOUT_DECR_NESTING_AND_RETURN (0); |
00fe048c | 2200 | |
21d13d83 ZW |
2201 | /* Don't output typedefs for types with magic type numbers (XCOFF). */ |
2202 | #ifdef DBX_ASSIGN_FUNDAMENTAL_TYPE_NUMBER | |
2203 | { | |
2204 | int fundamental_type_number = | |
2205 | DBX_ASSIGN_FUNDAMENTAL_TYPE_NUMBER (decl); | |
2206 | ||
2207 | if (fundamental_type_number != 0) | |
2208 | { | |
2209 | TREE_ASM_WRITTEN (decl) = 1; | |
2210 | TYPE_SYMTAB_ADDRESS (TREE_TYPE (decl)) = fundamental_type_number; | |
2211 | DBXOUT_DECR_NESTING_AND_RETURN (0); | |
2212 | } | |
2213 | } | |
2214 | #endif | |
00fe048c | 2215 | FORCE_TEXT; |
00262c8a | 2216 | result = 1; |
a823f1d8 RS |
2217 | { |
2218 | int tag_needed = 1; | |
3b6c7a7d | 2219 | int did_output = 0; |
25bdb910 | 2220 | |
a823f1d8 RS |
2221 | if (DECL_NAME (decl)) |
2222 | { | |
2223 | /* Nonzero means we must output a tag as well as a typedef. */ | |
2224 | tag_needed = 0; | |
00fe048c | 2225 | |
edbe40ea RS |
2226 | /* Handle the case of a C++ structure or union |
2227 | where the TYPE_NAME is a TYPE_DECL | |
2228 | which gives both a typedef name and a tag. */ | |
bed7dc7a | 2229 | /* dbx requires the tag first and the typedef second. */ |
edbe40ea | 2230 | if ((TREE_CODE (type) == RECORD_TYPE |
c1b98a95 RK |
2231 | || TREE_CODE (type) == UNION_TYPE |
2232 | || TREE_CODE (type) == QUAL_UNION_TYPE) | |
edbe40ea | 2233 | && TYPE_NAME (type) == decl |
196cedd0 | 2234 | && !(use_gnu_debug_info_extensions && have_used_extensions) |
bed7dc7a RS |
2235 | && !TREE_ASM_WRITTEN (TYPE_NAME (type)) |
2236 | /* Distinguish the implicit typedefs of C++ | |
2237 | from explicit ones that might be found in C. */ | |
3a538a66 | 2238 | && DECL_ARTIFICIAL (decl) |
6a08f7b3 DP |
2239 | /* Do not generate a tag for incomplete records. */ |
2240 | && COMPLETE_TYPE_P (type) | |
3342b6fd RK |
2241 | /* Do not generate a tag for records of variable size, |
2242 | since this type can not be properly described in the | |
2243 | DBX format, and it confuses some tools such as objdump. */ | |
83a05a97 | 2244 | && host_integerp (TYPE_SIZE (type), 1)) |
edbe40ea RS |
2245 | { |
2246 | tree name = TYPE_NAME (type); | |
2247 | if (TREE_CODE (name) == TYPE_DECL) | |
2248 | name = DECL_NAME (name); | |
2249 | ||
2250 | current_sym_code = DBX_TYPE_DECL_STABS_CODE; | |
2251 | current_sym_value = 0; | |
2252 | current_sym_addr = 0; | |
2253 | current_sym_nchars = 2 + IDENTIFIER_LENGTH (name); | |
2254 | ||
e8638df0 | 2255 | fprintf (asmfile, "%s\"%s:T", ASM_STABS_OP, |
edbe40ea | 2256 | IDENTIFIER_POINTER (name)); |
deda4b76 | 2257 | dbxout_type (type, 1); |
0d92cbff | 2258 | dbxout_finish_symbol (NULL_TREE); |
edbe40ea RS |
2259 | } |
2260 | ||
b0a93386 KB |
2261 | /* Output .stabs (or whatever) and leading double quote. */ |
2262 | fprintf (asmfile, "%s\"", ASM_STABS_OP); | |
2263 | ||
2264 | if (use_gnu_debug_info_extensions) | |
2265 | { | |
2266 | /* Output leading class/struct qualifiers. */ | |
2267 | dbxout_class_name_qualifiers (decl); | |
2268 | } | |
2269 | ||
a823f1d8 | 2270 | /* Output typedef name. */ |
b0a93386 | 2271 | fprintf (asmfile, "%s:", IDENTIFIER_POINTER (DECL_NAME (decl))); |
25bdb910 | 2272 | |
a823f1d8 RS |
2273 | /* Short cut way to output a tag also. */ |
2274 | if ((TREE_CODE (type) == RECORD_TYPE | |
c1b98a95 RK |
2275 | || TREE_CODE (type) == UNION_TYPE |
2276 | || TREE_CODE (type) == QUAL_UNION_TYPE) | |
37306b1e RK |
2277 | && TYPE_NAME (type) == decl |
2278 | /* Distinguish the implicit typedefs of C++ | |
2279 | from explicit ones that might be found in C. */ | |
3a538a66 | 2280 | && DECL_ARTIFICIAL (decl)) |
a823f1d8 | 2281 | { |
196cedd0 | 2282 | if (use_gnu_debug_info_extensions && have_used_extensions) |
a823f1d8 RS |
2283 | { |
2284 | putc ('T', asmfile); | |
2285 | TREE_ASM_WRITTEN (TYPE_NAME (type)) = 1; | |
2286 | } | |
edbe40ea | 2287 | #if 0 /* Now we generate the tag for this case up above. */ |
a823f1d8 RS |
2288 | else |
2289 | tag_needed = 1; | |
edbe40ea | 2290 | #endif |
a823f1d8 | 2291 | } |
00fe048c | 2292 | |
a823f1d8 | 2293 | putc ('t', asmfile); |
01e2750c | 2294 | current_sym_code = DBX_TYPE_DECL_STABS_CODE; |
25bdb910 | 2295 | |
deda4b76 | 2296 | dbxout_type (type, 1); |
a823f1d8 | 2297 | dbxout_finish_symbol (decl); |
3b6c7a7d | 2298 | did_output = 1; |
a823f1d8 | 2299 | } |
00fe048c | 2300 | |
3342b6fd RK |
2301 | /* Don't output a tag if this is an incomplete type. This prevents |
2302 | the sun4 Sun OS 4.x dbx from crashing. */ | |
83a05a97 | 2303 | |
bf6ed040 RK |
2304 | if (tag_needed && TYPE_NAME (type) != 0 |
2305 | && (TREE_CODE (TYPE_NAME (type)) == IDENTIFIER_NODE | |
2306 | || (DECL_NAME (TYPE_NAME (type)) != 0)) | |
d0f062fb | 2307 | && COMPLETE_TYPE_P (type) |
a823f1d8 RS |
2308 | && !TREE_ASM_WRITTEN (TYPE_NAME (type))) |
2309 | { | |
2310 | /* For a TYPE_DECL with no name, but the type has a name, | |
2311 | output a tag. | |
2312 | This is what represents `struct foo' with no typedef. */ | |
2313 | /* In C++, the name of a type is the corresponding typedef. | |
2314 | In C, it is an IDENTIFIER_NODE. */ | |
2315 | tree name = TYPE_NAME (type); | |
2316 | if (TREE_CODE (name) == TYPE_DECL) | |
2317 | name = DECL_NAME (name); | |
2318 | ||
01e2750c | 2319 | current_sym_code = DBX_TYPE_DECL_STABS_CODE; |
a823f1d8 RS |
2320 | current_sym_value = 0; |
2321 | current_sym_addr = 0; | |
2322 | current_sym_nchars = 2 + IDENTIFIER_LENGTH (name); | |
2323 | ||
e8638df0 | 2324 | fprintf (asmfile, "%s\"%s:T", ASM_STABS_OP, |
a823f1d8 | 2325 | IDENTIFIER_POINTER (name)); |
deda4b76 | 2326 | dbxout_type (type, 1); |
0d92cbff | 2327 | dbxout_finish_symbol (NULL_TREE); |
3b6c7a7d RS |
2328 | did_output = 1; |
2329 | } | |
2330 | ||
2331 | /* If an enum type has no name, it cannot be referred to, | |
2332 | but we must output it anyway, since the enumeration constants | |
2333 | can be referred to. */ | |
2334 | if (!did_output && TREE_CODE (type) == ENUMERAL_TYPE) | |
2335 | { | |
2336 | current_sym_code = DBX_TYPE_DECL_STABS_CODE; | |
2337 | current_sym_value = 0; | |
2338 | current_sym_addr = 0; | |
2339 | current_sym_nchars = 2; | |
2340 | ||
a63067c2 RS |
2341 | /* Some debuggers fail when given NULL names, so give this a |
2342 | harmless name of ` '. */ | |
e8638df0 | 2343 | fprintf (asmfile, "%s\" :T", ASM_STABS_OP); |
deda4b76 | 2344 | dbxout_type (type, 1); |
3b6c7a7d | 2345 | dbxout_finish_symbol (NULL_TREE); |
a823f1d8 RS |
2346 | } |
2347 | ||
2348 | /* Prevent duplicate output of a typedef. */ | |
2349 | TREE_ASM_WRITTEN (decl) = 1; | |
2350 | break; | |
2351 | } | |
00fe048c RS |
2352 | |
2353 | case PARM_DECL: | |
2354 | /* Parm decls go in their own separate chains | |
2355 | and are output by dbxout_reg_parms and dbxout_parms. */ | |
2356 | abort (); | |
2357 | ||
2358 | case RESULT_DECL: | |
2359 | /* Named return value, treat like a VAR_DECL. */ | |
2360 | case VAR_DECL: | |
91088ddb | 2361 | if (! DECL_RTL_SET_P (decl)) |
6a08f7b3 | 2362 | DBXOUT_DECR_NESTING_AND_RETURN (0); |
00fe048c RS |
2363 | /* Don't mention a variable that is external. |
2364 | Let the file that defines it describe it. */ | |
0924ddef | 2365 | if (DECL_EXTERNAL (decl)) |
00fe048c RS |
2366 | break; |
2367 | ||
2368 | /* If the variable is really a constant | |
2369 | and not written in memory, inform the debugger. */ | |
2370 | if (TREE_STATIC (decl) && TREE_READONLY (decl) | |
2371 | && DECL_INITIAL (decl) != 0 | |
665f2503 | 2372 | && host_integerp (DECL_INITIAL (decl), 0) |
00fe048c | 2373 | && ! TREE_ASM_WRITTEN (decl) |
69c89953 RH |
2374 | && (DECL_CONTEXT (decl) == NULL_TREE |
2375 | || TREE_CODE (DECL_CONTEXT (decl)) == BLOCK)) | |
00fe048c RS |
2376 | { |
2377 | if (TREE_PUBLIC (decl) == 0) | |
2378 | { | |
2379 | /* The sun4 assembler does not grok this. */ | |
a996cbd4 | 2380 | const char *name = IDENTIFIER_POINTER (DECL_NAME (decl)); |
665f2503 | 2381 | |
00fe048c RS |
2382 | if (TREE_CODE (TREE_TYPE (decl)) == INTEGER_TYPE |
2383 | || TREE_CODE (TREE_TYPE (decl)) == ENUMERAL_TYPE) | |
2384 | { | |
665f2503 | 2385 | HOST_WIDE_INT ival = tree_low_cst (DECL_INITIAL (decl), 0); |
90ff44cf KG |
2386 | fprintf (asmfile, "%s\"%s:c=i" HOST_WIDE_INT_PRINT_DEC |
2387 | "\",0x%x,0,0,0\n", | |
2388 | ASM_STABS_OP, name, ival, N_LSYM); | |
6a08f7b3 | 2389 | DBXOUT_DECR_NESTING; |
00262c8a | 2390 | return 1; |
00fe048c RS |
2391 | } |
2392 | else if (TREE_CODE (TREE_TYPE (decl)) == REAL_TYPE) | |
2393 | { | |
e0a21ab9 | 2394 | /* Don't know how to do this yet. */ |
00fe048c RS |
2395 | } |
2396 | break; | |
2397 | } | |
2398 | /* else it is something we handle like a normal variable. */ | |
2399 | } | |
2400 | ||
19e7881c | 2401 | SET_DECL_RTL (decl, eliminate_regs (DECL_RTL (decl), 0, NULL_RTX)); |
00fe048c | 2402 | #ifdef LEAF_REG_REMAP |
54ff41b7 | 2403 | if (current_function_uses_only_leaf_regs) |
00fe048c RS |
2404 | leaf_renumber_regs_insn (DECL_RTL (decl)); |
2405 | #endif | |
2406 | ||
00262c8a | 2407 | result = dbxout_symbol_location (decl, type, 0, DECL_RTL (decl)); |
e9a25f70 | 2408 | break; |
3a538a66 | 2409 | |
e9a25f70 JL |
2410 | default: |
2411 | break; | |
47700802 | 2412 | } |
6a08f7b3 | 2413 | DBXOUT_DECR_NESTING; |
00262c8a | 2414 | return result; |
47700802 RS |
2415 | } |
2416 | \f | |
2417 | /* Output the stab for DECL, a VAR_DECL, RESULT_DECL or PARM_DECL. | |
2418 | Add SUFFIX to its name, if SUFFIX is not 0. | |
2419 | Describe the variable as residing in HOME | |
00262c8a ML |
2420 | (usually HOME is DECL_RTL (DECL), but not always). |
2421 | Returns 1 if the stab was really emitted. */ | |
47700802 | 2422 | |
00262c8a | 2423 | static int |
7080f735 | 2424 | dbxout_symbol_location (tree decl, tree type, const char *suffix, rtx home) |
47700802 RS |
2425 | { |
2426 | int letter = 0; | |
2427 | int regno = -1; | |
00fe048c | 2428 | |
33e9d2aa DP |
2429 | emit_pending_bincls_if_required (); |
2430 | ||
47700802 RS |
2431 | /* Don't mention a variable at all |
2432 | if it was completely optimized into nothingness. | |
3a538a66 | 2433 | |
9ec36da5 | 2434 | If the decl was from an inline function, then its rtl |
47700802 RS |
2435 | is not identically the rtl that was used in this |
2436 | particular compilation. */ | |
c99fa40f | 2437 | if (GET_CODE (home) == SUBREG) |
47700802 RS |
2438 | { |
2439 | rtx value = home; | |
ddef6bc7 | 2440 | |
47700802 | 2441 | while (GET_CODE (value) == SUBREG) |
ddef6bc7 | 2442 | value = SUBREG_REG (value); |
47700802 | 2443 | if (GET_CODE (value) == REG) |
00fe048c | 2444 | { |
ddef6bc7 | 2445 | if (REGNO (value) >= FIRST_PSEUDO_REGISTER) |
00262c8a | 2446 | return 0; |
00fe048c | 2447 | } |
49d801d3 | 2448 | home = alter_subreg (&home); |
c99fa40f RH |
2449 | } |
2450 | if (GET_CODE (home) == REG) | |
2451 | { | |
2452 | regno = REGNO (home); | |
2453 | if (regno >= FIRST_PSEUDO_REGISTER) | |
2454 | return 0; | |
47700802 RS |
2455 | } |
2456 | ||
2457 | /* The kind-of-variable letter depends on where | |
2458 | the variable is and on the scope of its name: | |
2459 | G and N_GSYM for static storage and global scope, | |
2460 | S for static storage and file scope, | |
2461 | V for static storage and local scope, | |
2462 | for those two, use N_LCSYM if data is in bss segment, | |
2463 | N_STSYM if in data segment, N_FUN otherwise. | |
2464 | (We used N_FUN originally, then changed to N_STSYM | |
2465 | to please GDB. However, it seems that confused ld. | |
2466 | Now GDB has been fixed to like N_FUN, says Kingdon.) | |
2467 | no letter at all, and N_LSYM, for auto variable, | |
2468 | r and N_RSYM for register variable. */ | |
2469 | ||
2470 | if (GET_CODE (home) == MEM | |
2471 | && GET_CODE (XEXP (home, 0)) == SYMBOL_REF) | |
2472 | { | |
2473 | if (TREE_PUBLIC (decl)) | |
00fe048c | 2474 | { |
47700802 RS |
2475 | letter = 'G'; |
2476 | current_sym_code = N_GSYM; | |
00fe048c | 2477 | } |
47700802 | 2478 | else |
00fe048c | 2479 | { |
47700802 | 2480 | current_sym_addr = XEXP (home, 0); |
00fe048c | 2481 | |
47700802 | 2482 | letter = decl_function_context (decl) ? 'V' : 'S'; |
00fe048c | 2483 | |
6c949b67 JW |
2484 | /* This should be the same condition as in assemble_variable, but |
2485 | we don't have access to dont_output_data here. So, instead, | |
2486 | we rely on the fact that error_mark_node initializers always | |
2487 | end up in bss for C++ and never end up in bss for C. */ | |
2488 | if (DECL_INITIAL (decl) == 0 | |
3ac88239 | 2489 | || (!strcmp (lang_hooks.name, "GNU C++") |
6c949b67 | 2490 | && DECL_INITIAL (decl) == error_mark_node)) |
47700802 | 2491 | current_sym_code = N_LCSYM; |
dddfb74b | 2492 | else if (DECL_IN_TEXT_SECTION (decl)) |
47700802 RS |
2493 | /* This is not quite right, but it's the closest |
2494 | of all the codes that Unix defines. */ | |
2495 | current_sym_code = DBX_STATIC_CONST_VAR_CODE; | |
2496 | else | |
2497 | { | |
4b69f385 NC |
2498 | /* Some ports can transform a symbol ref into a label ref, |
2499 | because the symbol ref is too far away and has to be | |
2500 | dumped into a constant pool. Alternatively, the symbol | |
2501 | in the constant pool might be referenced by a different | |
2502 | symbol. */ | |
2503 | if (GET_CODE (current_sym_addr) == SYMBOL_REF | |
2504 | && CONSTANT_POOL_ADDRESS_P (current_sym_addr)) | |
2505 | { | |
452c159e UW |
2506 | bool marked; |
2507 | rtx tmp = get_pool_constant_mark (current_sym_addr, &marked); | |
2508 | ||
2509 | if (GET_CODE (tmp) == SYMBOL_REF) | |
2510 | { | |
2511 | current_sym_addr = tmp; | |
2512 | if (CONSTANT_POOL_ADDRESS_P (current_sym_addr)) | |
2513 | get_pool_constant_mark (current_sym_addr, &marked); | |
2514 | else | |
2515 | marked = true; | |
2516 | } | |
2517 | else if (GET_CODE (tmp) == LABEL_REF) | |
2518 | { | |
2519 | current_sym_addr = tmp; | |
2520 | marked = true; | |
2521 | } | |
2522 | ||
2523 | /* If all references to the constant pool were optimized | |
2524 | out, we just ignore the symbol. */ | |
2525 | if (!marked) | |
2526 | return 0; | |
4b69f385 | 2527 | } |
3a538a66 | 2528 | |
47700802 | 2529 | /* Ultrix `as' seems to need this. */ |
00fe048c | 2530 | #ifdef DBX_STATIC_STAB_DATA_SECTION |
47700802 | 2531 | data_section (); |
00fe048c | 2532 | #endif |
47700802 | 2533 | current_sym_code = N_STSYM; |
00fe048c RS |
2534 | } |
2535 | } | |
47700802 RS |
2536 | } |
2537 | else if (regno >= 0) | |
2538 | { | |
2539 | letter = 'r'; | |
2540 | current_sym_code = N_RSYM; | |
2541 | current_sym_value = DBX_REGISTER_NUMBER (regno); | |
2542 | } | |
2543 | else if (GET_CODE (home) == MEM | |
2544 | && (GET_CODE (XEXP (home, 0)) == MEM | |
2545 | || (GET_CODE (XEXP (home, 0)) == REG | |
9571f69b MM |
2546 | && REGNO (XEXP (home, 0)) != HARD_FRAME_POINTER_REGNUM |
2547 | && REGNO (XEXP (home, 0)) != STACK_POINTER_REGNUM | |
2548 | #if ARG_POINTER_REGNUM != HARD_FRAME_POINTER_REGNUM | |
2549 | && REGNO (XEXP (home, 0)) != ARG_POINTER_REGNUM | |
2550 | #endif | |
2551 | ))) | |
47700802 RS |
2552 | /* If the value is indirect by memory or by a register |
2553 | that isn't the frame pointer | |
2554 | then it means the object is variable-sized and address through | |
2555 | that register or stack slot. DBX has no way to represent this | |
2556 | so all we can do is output the variable as a pointer. | |
2557 | If it's not a parameter, ignore it. | |
2558 | (VAR_DECLs like this can be made by integrate.c.) */ | |
2559 | { | |
2560 | if (GET_CODE (XEXP (home, 0)) == REG) | |
00fe048c RS |
2561 | { |
2562 | letter = 'r'; | |
2563 | current_sym_code = N_RSYM; | |
e9716dc5 JJ |
2564 | if (REGNO (XEXP (home, 0)) >= FIRST_PSEUDO_REGISTER) |
2565 | return 0; | |
47700802 | 2566 | current_sym_value = DBX_REGISTER_NUMBER (REGNO (XEXP (home, 0))); |
00fe048c | 2567 | } |
47700802 | 2568 | else |
00fe048c RS |
2569 | { |
2570 | current_sym_code = N_LSYM; | |
47700802 | 2571 | /* RTL looks like (MEM (MEM (PLUS (REG...) (CONST_INT...)))). |
00fe048c | 2572 | We want the value of that CONST_INT. */ |
47700802 RS |
2573 | current_sym_value |
2574 | = DEBUGGER_AUTO_OFFSET (XEXP (XEXP (home, 0), 0)); | |
b372168c | 2575 | } |
47700802 RS |
2576 | |
2577 | /* Effectively do build_pointer_type, but don't cache this type, | |
2578 | since it might be temporary whereas the type it points to | |
2579 | might have been saved for inlining. */ | |
2580 | /* Don't use REFERENCE_TYPE because dbx can't handle that. */ | |
2581 | type = make_node (POINTER_TYPE); | |
2582 | TREE_TYPE (type) = TREE_TYPE (decl); | |
2583 | } | |
2584 | else if (GET_CODE (home) == MEM | |
2585 | && GET_CODE (XEXP (home, 0)) == REG) | |
2586 | { | |
2587 | current_sym_code = N_LSYM; | |
2588 | current_sym_value = DEBUGGER_AUTO_OFFSET (XEXP (home, 0)); | |
2589 | } | |
2590 | else if (GET_CODE (home) == MEM | |
2591 | && GET_CODE (XEXP (home, 0)) == PLUS | |
2592 | && GET_CODE (XEXP (XEXP (home, 0), 1)) == CONST_INT) | |
2593 | { | |
2594 | current_sym_code = N_LSYM; | |
2595 | /* RTL looks like (MEM (PLUS (REG...) (CONST_INT...))) | |
2596 | We want the value of that CONST_INT. */ | |
2597 | current_sym_value = DEBUGGER_AUTO_OFFSET (XEXP (home, 0)); | |
2598 | } | |
2599 | else if (GET_CODE (home) == MEM | |
2600 | && GET_CODE (XEXP (home, 0)) == CONST) | |
2601 | { | |
2602 | /* Handle an obscure case which can arise when optimizing and | |
2603 | when there are few available registers. (This is *always* | |
2604 | the case for i386/i486 targets). The RTL looks like | |
2605 | (MEM (CONST ...)) even though this variable is a local `auto' | |
2606 | or a local `register' variable. In effect, what has happened | |
2607 | is that the reload pass has seen that all assignments and | |
2608 | references for one such a local variable can be replaced by | |
2609 | equivalent assignments and references to some static storage | |
2610 | variable, thereby avoiding the need for a register. In such | |
2611 | cases we're forced to lie to debuggers and tell them that | |
2612 | this variable was itself `static'. */ | |
2613 | current_sym_code = N_LCSYM; | |
2614 | letter = 'V'; | |
2615 | current_sym_addr = XEXP (XEXP (home, 0), 0); | |
2616 | } | |
2617 | else if (GET_CODE (home) == CONCAT) | |
2618 | { | |
02db7776 JO |
2619 | tree subtype; |
2620 | ||
2621 | /* If TYPE is not a COMPLEX_TYPE (it might be a RECORD_TYPE, | |
2622 | for example), then there is no easy way to figure out | |
2623 | what SUBTYPE should be. So, we give up. */ | |
2624 | if (TREE_CODE (type) != COMPLEX_TYPE) | |
2625 | return 0; | |
2626 | ||
2627 | subtype = TREE_TYPE (type); | |
47700802 RS |
2628 | |
2629 | /* If the variable's storage is in two parts, | |
2630 | output each as a separate stab with a modified name. */ | |
2631 | if (WORDS_BIG_ENDIAN) | |
2632 | dbxout_symbol_location (decl, subtype, "$imag", XEXP (home, 0)); | |
00fe048c | 2633 | else |
47700802 | 2634 | dbxout_symbol_location (decl, subtype, "$real", XEXP (home, 0)); |
00fe048c | 2635 | |
47700802 RS |
2636 | dbxout_prepare_symbol (decl); |
2637 | ||
2638 | if (WORDS_BIG_ENDIAN) | |
2639 | dbxout_symbol_location (decl, subtype, "$real", XEXP (home, 1)); | |
2640 | else | |
2641 | dbxout_symbol_location (decl, subtype, "$imag", XEXP (home, 1)); | |
00262c8a | 2642 | return 1; |
47700802 RS |
2643 | } |
2644 | else | |
2645 | /* Address might be a MEM, when DECL is a variable-sized object. | |
2646 | Or it might be const0_rtx, meaning previous passes | |
2647 | want us to ignore this variable. */ | |
00262c8a | 2648 | return 0; |
47700802 RS |
2649 | |
2650 | /* Ok, start a symtab entry and output the variable name. */ | |
2651 | FORCE_TEXT; | |
b372168c MM |
2652 | |
2653 | #ifdef DBX_STATIC_BLOCK_START | |
47700802 | 2654 | DBX_STATIC_BLOCK_START (asmfile, current_sym_code); |
b372168c MM |
2655 | #endif |
2656 | ||
47700802 | 2657 | dbxout_symbol_name (decl, suffix, letter); |
deda4b76 | 2658 | dbxout_type (type, 0); |
47700802 | 2659 | dbxout_finish_symbol (decl); |
b372168c MM |
2660 | |
2661 | #ifdef DBX_STATIC_BLOCK_END | |
47700802 | 2662 | DBX_STATIC_BLOCK_END (asmfile, current_sym_code); |
b372168c | 2663 | #endif |
00262c8a | 2664 | return 1; |
47700802 RS |
2665 | } |
2666 | \f | |
2667 | /* Output the symbol name of DECL for a stabs, with suffix SUFFIX. | |
2668 | Then output LETTER to indicate the kind of location the symbol has. */ | |
2669 | ||
2670 | static void | |
7080f735 | 2671 | dbxout_symbol_name (tree decl, const char *suffix, int letter) |
47700802 | 2672 | { |
f9d99dd2 JM |
2673 | const char *name; |
2674 | ||
a4d8ec65 DP |
2675 | if (DECL_CONTEXT (decl) |
2676 | && (TYPE_P (DECL_CONTEXT (decl)) | |
2677 | || TREE_CODE (DECL_CONTEXT (decl)) == NAMESPACE_DECL)) | |
2678 | /* One slight hitch: if this is a VAR_DECL which is a class member | |
2679 | or a namespace member, we must put out the mangled name instead of the | |
f9d99dd2 JM |
2680 | DECL_NAME. Note also that static member (variable) names DO NOT begin |
2681 | with underscores in .stabs directives. */ | |
2682 | name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl)); | |
2683 | else | |
2684 | /* ...but if we're function-local, we don't want to include the junk | |
2685 | added by ASM_FORMAT_PRIVATE_NAME. */ | |
2686 | name = IDENTIFIER_POINTER (DECL_NAME (decl)); | |
2687 | ||
47700802 RS |
2688 | if (name == 0) |
2689 | name = "(anon)"; | |
e8638df0 | 2690 | fprintf (asmfile, "%s\"%s%s:", ASM_STABS_OP, name, |
47700802 RS |
2691 | (suffix ? suffix : "")); |
2692 | ||
02e3f1a8 RK |
2693 | if (letter) |
2694 | putc (letter, asmfile); | |
00fe048c RS |
2695 | } |
2696 | ||
2697 | static void | |
7080f735 | 2698 | dbxout_prepare_symbol (tree decl ATTRIBUTE_UNUSED) |
00fe048c RS |
2699 | { |
2700 | #ifdef WINNING_GDB | |
f31686a3 | 2701 | const char *filename = DECL_SOURCE_FILE (decl); |
00fe048c RS |
2702 | |
2703 | dbxout_source_file (asmfile, filename); | |
2704 | #endif | |
a2a0019f DE |
2705 | |
2706 | /* Initialize variables used to communicate each symbol's debug | |
2707 | information to dbxout_finish_symbol with zeroes. */ | |
2708 | ||
2709 | /* Cast avoids warning in old compilers. */ | |
2710 | current_sym_code = (STAB_CODE_TYPE) 0; | |
2711 | current_sym_value = 0; | |
2712 | current_sym_addr = 0; | |
00fe048c RS |
2713 | } |
2714 | ||
2715 | static void | |
7080f735 | 2716 | dbxout_finish_symbol (tree sym) |
00fe048c | 2717 | { |
b372168c MM |
2718 | #ifdef DBX_FINISH_SYMBOL |
2719 | DBX_FINISH_SYMBOL (sym); | |
2720 | #else | |
00fe048c | 2721 | int line = 0; |
fcf956c0 | 2722 | if (use_gnu_debug_info_extensions && sym != 0) |
f31686a3 | 2723 | line = DECL_SOURCE_LINE (sym); |
b372168c | 2724 | |
00fe048c RS |
2725 | fprintf (asmfile, "\",%d,0,%d,", current_sym_code, line); |
2726 | if (current_sym_addr) | |
2727 | output_addr_const (asmfile, current_sym_addr); | |
2728 | else | |
2729 | fprintf (asmfile, "%d", current_sym_value); | |
2730 | putc ('\n', asmfile); | |
b372168c | 2731 | #endif |
00fe048c RS |
2732 | } |
2733 | ||
cc2902df | 2734 | /* Output definitions of all the decls in a chain. Return nonzero if |
00262c8a | 2735 | anything was output */ |
00fe048c | 2736 | |
00262c8a | 2737 | int |
7080f735 | 2738 | dbxout_syms (tree syms) |
00fe048c | 2739 | { |
00262c8a | 2740 | int result = 0; |
00fe048c RS |
2741 | while (syms) |
2742 | { | |
00262c8a | 2743 | result += dbxout_symbol (syms, 1); |
00fe048c RS |
2744 | syms = TREE_CHAIN (syms); |
2745 | } | |
00262c8a | 2746 | return result; |
00fe048c RS |
2747 | } |
2748 | \f | |
2749 | /* The following two functions output definitions of function parameters. | |
2750 | Each parameter gets a definition locating it in the parameter list. | |
2751 | Each parameter that is a register variable gets a second definition | |
2752 | locating it in the register. | |
2753 | ||
2754 | Printing or argument lists in gdb uses the definitions that | |
2755 | locate in the parameter list. But reference to the variable in | |
2756 | expressions uses preferentially the definition as a register. */ | |
2757 | ||
2758 | /* Output definitions, referring to storage in the parmlist, | |
2759 | of all the parms in PARMS, which is a chain of PARM_DECL nodes. */ | |
2760 | ||
b372168c | 2761 | void |
7080f735 | 2762 | dbxout_parms (tree parms) |
00fe048c | 2763 | { |
6a08f7b3 DP |
2764 | ++debug_nesting; |
2765 | ||
33e9d2aa DP |
2766 | emit_pending_bincls_if_required (); |
2767 | ||
00fe048c | 2768 | for (; parms; parms = TREE_CHAIN (parms)) |
7a3e01c4 JDA |
2769 | if (DECL_NAME (parms) |
2770 | && TREE_TYPE (parms) != error_mark_node | |
2771 | && DECL_RTL_SET_P (parms) | |
2772 | && DECL_INCOMING_RTL (parms)) | |
00fe048c RS |
2773 | { |
2774 | dbxout_prepare_symbol (parms); | |
2775 | ||
2776 | /* Perform any necessary register eliminations on the parameter's rtl, | |
2777 | so that the debugging output will be accurate. */ | |
2778 | DECL_INCOMING_RTL (parms) | |
1914f5da | 2779 | = eliminate_regs (DECL_INCOMING_RTL (parms), 0, NULL_RTX); |
19e7881c | 2780 | SET_DECL_RTL (parms, eliminate_regs (DECL_RTL (parms), 0, NULL_RTX)); |
00fe048c | 2781 | #ifdef LEAF_REG_REMAP |
54ff41b7 | 2782 | if (current_function_uses_only_leaf_regs) |
00fe048c RS |
2783 | { |
2784 | leaf_renumber_regs_insn (DECL_INCOMING_RTL (parms)); | |
2785 | leaf_renumber_regs_insn (DECL_RTL (parms)); | |
2786 | } | |
2787 | #endif | |
2788 | ||
2789 | if (PARM_PASSED_IN_MEMORY (parms)) | |
2790 | { | |
2791 | rtx addr = XEXP (DECL_INCOMING_RTL (parms), 0); | |
2792 | ||
2793 | /* ??? Here we assume that the parm address is indexed | |
2794 | off the frame pointer or arg pointer. | |
2795 | If that is not true, we produce meaningless results, | |
2796 | but do not crash. */ | |
2797 | if (GET_CODE (addr) == PLUS | |
2798 | && GET_CODE (XEXP (addr, 1)) == CONST_INT) | |
2799 | current_sym_value = INTVAL (XEXP (addr, 1)); | |
2800 | else | |
2801 | current_sym_value = 0; | |
2802 | ||
2803 | current_sym_code = N_PSYM; | |
2804 | current_sym_addr = 0; | |
2805 | ||
2806 | FORCE_TEXT; | |
2807 | if (DECL_NAME (parms)) | |
2808 | { | |
2809 | current_sym_nchars = 2 + IDENTIFIER_LENGTH (DECL_NAME (parms)); | |
2810 | ||
e8638df0 | 2811 | fprintf (asmfile, "%s\"%s:%c", ASM_STABS_OP, |
01e2750c RS |
2812 | IDENTIFIER_POINTER (DECL_NAME (parms)), |
2813 | DBX_MEMPARM_STABS_LETTER); | |
00fe048c RS |
2814 | } |
2815 | else | |
2816 | { | |
2817 | current_sym_nchars = 8; | |
e8638df0 | 2818 | fprintf (asmfile, "%s\"(anon):%c", ASM_STABS_OP, |
01e2750c | 2819 | DBX_MEMPARM_STABS_LETTER); |
00fe048c RS |
2820 | } |
2821 | ||
53f2d033 | 2822 | /* It is quite tempting to use: |
3a538a66 | 2823 | |
deda4b76 | 2824 | dbxout_type (TREE_TYPE (parms), 0); |
53f2d033 NC |
2825 | |
2826 | as the next statement, rather than using DECL_ARG_TYPE(), so | |
2827 | that gcc reports the actual type of the parameter, rather | |
2828 | than the promoted type. This certainly makes GDB's life | |
2829 | easier, at least for some ports. The change is a bad idea | |
2830 | however, since GDB expects to be able access the type without | |
2831 | performing any conversions. So for example, if we were | |
2832 | passing a float to an unprototyped function, gcc will store a | |
2833 | double on the stack, but if we emit a stab saying the type is a | |
2834 | float, then gdb will only read in a single value, and this will | |
fb530c07 | 2835 | produce an erroneous value. */ |
3a538a66 | 2836 | dbxout_type (DECL_ARG_TYPE (parms), 0); |
00fe048c RS |
2837 | current_sym_value = DEBUGGER_ARG_OFFSET (current_sym_value, addr); |
2838 | dbxout_finish_symbol (parms); | |
2839 | } | |
2840 | else if (GET_CODE (DECL_RTL (parms)) == REG) | |
2841 | { | |
2842 | rtx best_rtl; | |
b372168c | 2843 | char regparm_letter; |
25b5c537 | 2844 | tree parm_type; |
00fe048c RS |
2845 | /* Parm passed in registers and lives in registers or nowhere. */ |
2846 | ||
b372168c MM |
2847 | current_sym_code = DBX_REGPARM_STABS_CODE; |
2848 | regparm_letter = DBX_REGPARM_STABS_LETTER; | |
00fe048c RS |
2849 | current_sym_addr = 0; |
2850 | ||
2851 | /* If parm lives in a register, use that register; | |
2852 | pretend the parm was passed there. It would be more consistent | |
2853 | to describe the register where the parm was passed, | |
25b5c537 JW |
2854 | but in practice that register usually holds something else. |
2855 | ||
2856 | If we use DECL_RTL, then we must use the declared type of | |
2857 | the variable, not the type that it arrived in. */ | |
770ae6cc | 2858 | if (REGNO (DECL_RTL (parms)) < FIRST_PSEUDO_REGISTER) |
25b5c537 JW |
2859 | { |
2860 | best_rtl = DECL_RTL (parms); | |
2861 | parm_type = TREE_TYPE (parms); | |
2862 | } | |
ec7a1dd2 JW |
2863 | /* If the parm lives nowhere, use the register where it was |
2864 | passed. It is also better to use the declared type here. */ | |
00fe048c | 2865 | else |
25b5c537 JW |
2866 | { |
2867 | best_rtl = DECL_INCOMING_RTL (parms); | |
ec7a1dd2 | 2868 | parm_type = TREE_TYPE (parms); |
25b5c537 | 2869 | } |
00fe048c RS |
2870 | current_sym_value = DBX_REGISTER_NUMBER (REGNO (best_rtl)); |
2871 | ||
2872 | FORCE_TEXT; | |
2873 | if (DECL_NAME (parms)) | |
2874 | { | |
2875 | current_sym_nchars = 2 + IDENTIFIER_LENGTH (DECL_NAME (parms)); | |
e8638df0 | 2876 | fprintf (asmfile, "%s\"%s:%c", ASM_STABS_OP, |
b372168c MM |
2877 | IDENTIFIER_POINTER (DECL_NAME (parms)), |
2878 | regparm_letter); | |
00fe048c RS |
2879 | } |
2880 | else | |
2881 | { | |
2882 | current_sym_nchars = 8; | |
e8638df0 | 2883 | fprintf (asmfile, "%s\"(anon):%c", ASM_STABS_OP, |
b372168c | 2884 | regparm_letter); |
00fe048c RS |
2885 | } |
2886 | ||
deda4b76 | 2887 | dbxout_type (parm_type, 0); |
00fe048c RS |
2888 | dbxout_finish_symbol (parms); |
2889 | } | |
dad0145a | 2890 | else if (GET_CODE (DECL_RTL (parms)) == MEM |
c3134623 | 2891 | && GET_CODE (XEXP (DECL_RTL (parms), 0)) == REG |
b205fb6f JW |
2892 | && REGNO (XEXP (DECL_RTL (parms), 0)) != HARD_FRAME_POINTER_REGNUM |
2893 | && REGNO (XEXP (DECL_RTL (parms), 0)) != STACK_POINTER_REGNUM | |
fe48b587 | 2894 | #if ARG_POINTER_REGNUM != HARD_FRAME_POINTER_REGNUM |
b205fb6f JW |
2895 | && REGNO (XEXP (DECL_RTL (parms), 0)) != ARG_POINTER_REGNUM |
2896 | #endif | |
2897 | ) | |
dad0145a RS |
2898 | { |
2899 | /* Parm was passed via invisible reference. | |
2900 | That is, its address was passed in a register. | |
2901 | Output it as if it lived in that register. | |
2902 | The debugger will know from the type | |
2903 | that it was actually passed by invisible reference. */ | |
2904 | ||
2905 | char regparm_letter; | |
2906 | /* Parm passed in registers and lives in registers or nowhere. */ | |
2907 | ||
2908 | current_sym_code = DBX_REGPARM_STABS_CODE; | |
f31093e2 JW |
2909 | if (use_gnu_debug_info_extensions) |
2910 | regparm_letter = GDB_INV_REF_REGPARM_STABS_LETTER; | |
2911 | else | |
2912 | regparm_letter = DBX_REGPARM_STABS_LETTER; | |
dad0145a | 2913 | |
4e6ee267 JW |
2914 | /* DECL_RTL looks like (MEM (REG...). Get the register number. |
2915 | If it is an unallocated pseudo-reg, then use the register where | |
2916 | it was passed instead. */ | |
770ae6cc | 2917 | if (REGNO (XEXP (DECL_RTL (parms), 0)) < FIRST_PSEUDO_REGISTER) |
4e6ee267 JW |
2918 | current_sym_value = REGNO (XEXP (DECL_RTL (parms), 0)); |
2919 | else | |
2920 | current_sym_value = REGNO (DECL_INCOMING_RTL (parms)); | |
2921 | ||
dad0145a RS |
2922 | current_sym_addr = 0; |
2923 | ||
2924 | FORCE_TEXT; | |
2925 | if (DECL_NAME (parms)) | |
2926 | { | |
02e3f1a8 RK |
2927 | current_sym_nchars |
2928 | = 2 + strlen (IDENTIFIER_POINTER (DECL_NAME (parms))); | |
dad0145a | 2929 | |
e8638df0 | 2930 | fprintf (asmfile, "%s\"%s:%c", ASM_STABS_OP, |
dad0145a | 2931 | IDENTIFIER_POINTER (DECL_NAME (parms)), |
f31093e2 | 2932 | regparm_letter); |
dad0145a RS |
2933 | } |
2934 | else | |
2935 | { | |
2936 | current_sym_nchars = 8; | |
e8638df0 | 2937 | fprintf (asmfile, "%s\"(anon):%c", ASM_STABS_OP, |
f31093e2 | 2938 | regparm_letter); |
dad0145a RS |
2939 | } |
2940 | ||
deda4b76 | 2941 | dbxout_type (TREE_TYPE (parms), 0); |
dad0145a RS |
2942 | dbxout_finish_symbol (parms); |
2943 | } | |
27646dba JB |
2944 | else if (GET_CODE (DECL_RTL (parms)) == MEM |
2945 | && GET_CODE (XEXP (DECL_RTL (parms), 0)) == MEM) | |
2946 | { | |
2947 | /* Parm was passed via invisible reference, with the reference | |
2948 | living on the stack. DECL_RTL looks like | |
ebb0cdf3 CM |
2949 | (MEM (MEM (PLUS (REG ...) (CONST_INT ...)))) or it |
2950 | could look like (MEM (MEM (REG))). */ | |
83182544 | 2951 | const char *const decl_name = (DECL_NAME (parms) |
27646dba JB |
2952 | ? IDENTIFIER_POINTER (DECL_NAME (parms)) |
2953 | : "(anon)"); | |
3a538a66 KH |
2954 | if (GET_CODE (XEXP (XEXP (DECL_RTL (parms), 0), 0)) == REG) |
2955 | current_sym_value = 0; | |
ebb0cdf3 CM |
2956 | else |
2957 | current_sym_value | |
2958 | = INTVAL (XEXP (XEXP (XEXP (DECL_RTL (parms), 0), 0), 1)); | |
27646dba | 2959 | current_sym_addr = 0; |
ca9d6748 | 2960 | current_sym_code = N_PSYM; |
3a538a66 | 2961 | |
27646dba JB |
2962 | FORCE_TEXT; |
2963 | fprintf (asmfile, "%s\"%s:v", ASM_STABS_OP, decl_name); | |
3c1299c5 AO |
2964 | |
2965 | current_sym_value | |
2966 | = DEBUGGER_ARG_OFFSET (current_sym_value, | |
2967 | XEXP (XEXP (DECL_RTL (parms), 0), 0)); | |
deda4b76 | 2968 | dbxout_type (TREE_TYPE (parms), 0); |
27646dba JB |
2969 | dbxout_finish_symbol (parms); |
2970 | } | |
00fe048c | 2971 | else if (GET_CODE (DECL_RTL (parms)) == MEM |
8d291181 RS |
2972 | && XEXP (DECL_RTL (parms), 0) != const0_rtx |
2973 | /* ??? A constant address for a parm can happen | |
2974 | when the reg it lives in is equiv to a constant in memory. | |
2975 | Should make this not happen, after 2.4. */ | |
2976 | && ! CONSTANT_P (XEXP (DECL_RTL (parms), 0))) | |
00fe048c RS |
2977 | { |
2978 | /* Parm was passed in registers but lives on the stack. */ | |
2979 | ||
2980 | current_sym_code = N_PSYM; | |
2981 | /* DECL_RTL looks like (MEM (PLUS (REG...) (CONST_INT...))), | |
2982 | in which case we want the value of that CONST_INT, | |
27646dba | 2983 | or (MEM (REG ...)), |
00fe048c | 2984 | in which case we use a value of zero. */ |
14a774a9 | 2985 | if (GET_CODE (XEXP (DECL_RTL (parms), 0)) == REG) |
00fe048c RS |
2986 | current_sym_value = 0; |
2987 | else | |
14a774a9 RK |
2988 | current_sym_value |
2989 | = INTVAL (XEXP (XEXP (DECL_RTL (parms), 0), 1)); | |
2990 | ||
00fe048c RS |
2991 | current_sym_addr = 0; |
2992 | ||
620422fd DE |
2993 | /* Make a big endian correction if the mode of the type of the |
2994 | parameter is not the same as the mode of the rtl. */ | |
2995 | if (BYTES_BIG_ENDIAN | |
2996 | && TYPE_MODE (TREE_TYPE (parms)) != GET_MODE (DECL_RTL (parms)) | |
2997 | && GET_MODE_SIZE (TYPE_MODE (TREE_TYPE (parms))) < UNITS_PER_WORD) | |
2998 | { | |
3a538a66 | 2999 | current_sym_value += |
917d7595 CP |
3000 | GET_MODE_SIZE (GET_MODE (DECL_RTL (parms))) |
3001 | - GET_MODE_SIZE (TYPE_MODE (TREE_TYPE (parms))); | |
620422fd DE |
3002 | } |
3003 | ||
00fe048c RS |
3004 | FORCE_TEXT; |
3005 | if (DECL_NAME (parms)) | |
3006 | { | |
14a774a9 RK |
3007 | current_sym_nchars |
3008 | = 2 + strlen (IDENTIFIER_POINTER (DECL_NAME (parms))); | |
00fe048c | 3009 | |
e8638df0 | 3010 | fprintf (asmfile, "%s\"%s:%c", ASM_STABS_OP, |
01e2750c RS |
3011 | IDENTIFIER_POINTER (DECL_NAME (parms)), |
3012 | DBX_MEMPARM_STABS_LETTER); | |
00fe048c RS |
3013 | } |
3014 | else | |
3015 | { | |
3016 | current_sym_nchars = 8; | |
e8638df0 | 3017 | fprintf (asmfile, "%s\"(anon):%c", ASM_STABS_OP, |
01e2750c | 3018 | DBX_MEMPARM_STABS_LETTER); |
00fe048c RS |
3019 | } |
3020 | ||
3021 | current_sym_value | |
3022 | = DEBUGGER_ARG_OFFSET (current_sym_value, | |
3023 | XEXP (DECL_RTL (parms), 0)); | |
deda4b76 | 3024 | dbxout_type (TREE_TYPE (parms), 0); |
00fe048c RS |
3025 | dbxout_finish_symbol (parms); |
3026 | } | |
3027 | } | |
6a08f7b3 | 3028 | DBXOUT_DECR_NESTING; |
00fe048c RS |
3029 | } |
3030 | ||
3031 | /* Output definitions for the places where parms live during the function, | |
3032 | when different from where they were passed, when the parms were passed | |
3033 | in memory. | |
3034 | ||
3035 | It is not useful to do this for parms passed in registers | |
3036 | that live during the function in different registers, because it is | |
3037 | impossible to look in the passed register for the passed value, | |
3038 | so we use the within-the-function register to begin with. | |
3039 | ||
3040 | PARMS is a chain of PARM_DECL nodes. */ | |
3041 | ||
b372168c | 3042 | void |
7080f735 | 3043 | dbxout_reg_parms (tree parms) |
00fe048c | 3044 | { |
6a08f7b3 DP |
3045 | ++debug_nesting; |
3046 | ||
00fe048c | 3047 | for (; parms; parms = TREE_CHAIN (parms)) |
dc2fba60 | 3048 | if (DECL_NAME (parms) && PARM_PASSED_IN_MEMORY (parms)) |
00fe048c RS |
3049 | { |
3050 | dbxout_prepare_symbol (parms); | |
3051 | ||
3052 | /* Report parms that live in registers during the function | |
3053 | but were passed in memory. */ | |
3054 | if (GET_CODE (DECL_RTL (parms)) == REG | |
dc2fba60 | 3055 | && REGNO (DECL_RTL (parms)) < FIRST_PSEUDO_REGISTER) |
47700802 RS |
3056 | dbxout_symbol_location (parms, TREE_TYPE (parms), |
3057 | 0, DECL_RTL (parms)); | |
dc2fba60 | 3058 | else if (GET_CODE (DECL_RTL (parms)) == CONCAT) |
47700802 RS |
3059 | dbxout_symbol_location (parms, TREE_TYPE (parms), |
3060 | 0, DECL_RTL (parms)); | |
00fe048c RS |
3061 | /* Report parms that live in memory but not where they were passed. */ |
3062 | else if (GET_CODE (DECL_RTL (parms)) == MEM | |
00fe048c | 3063 | && ! rtx_equal_p (DECL_RTL (parms), DECL_INCOMING_RTL (parms))) |
dc2fba60 JW |
3064 | dbxout_symbol_location (parms, TREE_TYPE (parms), |
3065 | 0, DECL_RTL (parms)); | |
00fe048c | 3066 | } |
6a08f7b3 | 3067 | DBXOUT_DECR_NESTING; |
00fe048c RS |
3068 | } |
3069 | \f | |
3070 | /* Given a chain of ..._TYPE nodes (as come in a parameter list), | |
3071 | output definitions of those names, in raw form */ | |
3072 | ||
e1772ac0 | 3073 | static void |
7080f735 | 3074 | dbxout_args (tree args) |
00fe048c RS |
3075 | { |
3076 | while (args) | |
3077 | { | |
3078 | putc (',', asmfile); | |
deda4b76 | 3079 | dbxout_type (TREE_VALUE (args), 0); |
00fe048c RS |
3080 | CHARS (1); |
3081 | args = TREE_CHAIN (args); | |
3082 | } | |
3083 | } | |
3084 | \f | |
00fe048c RS |
3085 | /* Output everything about a symbol block (a BLOCK node |
3086 | that represents a scope level), | |
3087 | including recursive output of contained blocks. | |
3088 | ||
3089 | BLOCK is the BLOCK node. | |
3090 | DEPTH is its depth within containing symbol blocks. | |
3091 | ARGS is usually zero; but for the outermost block of the | |
3092 | body of a function, it is a chain of PARM_DECLs for the function parameters. | |
3093 | We output definitions of all the register parms | |
3094 | as if they were local variables of that block. | |
3095 | ||
3096 | If -g1 was used, we count blocks just the same, but output nothing | |
3097 | except for the outermost block. | |
3098 | ||
3099 | Actually, BLOCK may be several blocks chained together. | |
3100 | We handle them all in sequence. */ | |
3101 | ||
3102 | static void | |
7080f735 | 3103 | dbxout_block (tree block, int depth, tree args) |
00fe048c | 3104 | { |
a996cbd4 | 3105 | int blocknum = -1; |
00262c8a ML |
3106 | |
3107 | #if DBX_BLOCKS_FUNCTION_RELATIVE | |
3a538a66 | 3108 | const char *begin_label; |
00262c8a ML |
3109 | if (current_function_func_begin_label != NULL_TREE) |
3110 | begin_label = IDENTIFIER_POINTER (current_function_func_begin_label); | |
3111 | else | |
3112 | begin_label = XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0); | |
3113 | #endif | |
00fe048c RS |
3114 | |
3115 | while (block) | |
3116 | { | |
3117 | /* Ignore blocks never expanded or otherwise marked as real. */ | |
18c038b9 | 3118 | if (TREE_USED (block) && TREE_ASM_WRITTEN (block)) |
00fe048c | 3119 | { |
711d4bb3 RH |
3120 | int did_output; |
3121 | ||
00262c8a | 3122 | /* In dbx format, the syms of a block come before the N_LBRAC. |
30f7a378 | 3123 | If nothing is output, we don't need the N_LBRAC, either. */ |
711d4bb3 | 3124 | did_output = 0; |
00fe048c | 3125 | if (debug_info_level != DINFO_LEVEL_TERSE || depth == 0) |
711d4bb3 | 3126 | did_output = dbxout_syms (BLOCK_VARS (block)); |
00fe048c RS |
3127 | if (args) |
3128 | dbxout_reg_parms (args); | |
00fe048c RS |
3129 | |
3130 | /* Now output an N_LBRAC symbol to represent the beginning of | |
3131 | the block. Use the block's tree-walk order to generate | |
3132 | the assembler symbols LBBn and LBEn | |
3133 | that final will define around the code in this block. */ | |
711d4bb3 | 3134 | if (depth > 0 && did_output) |
00fe048c RS |
3135 | { |
3136 | char buf[20]; | |
18c038b9 | 3137 | blocknum = BLOCK_NUMBER (block); |
00fe048c RS |
3138 | ASM_GENERATE_INTERNAL_LABEL (buf, "LBB", blocknum); |
3139 | ||
3140 | if (BLOCK_HANDLER_BLOCK (block)) | |
3141 | { | |
3142 | /* A catch block. Must precede N_LBRAC. */ | |
3143 | tree decl = BLOCK_VARS (block); | |
3144 | while (decl) | |
3145 | { | |
e8638df0 | 3146 | fprintf (asmfile, "%s\"%s:C1\",%d,0,0,", ASM_STABS_OP, |
00fe048c RS |
3147 | IDENTIFIER_POINTER (DECL_NAME (decl)), N_CATCH); |
3148 | assemble_name (asmfile, buf); | |
3149 | fprintf (asmfile, "\n"); | |
00fe048c RS |
3150 | decl = TREE_CHAIN (decl); |
3151 | } | |
3152 | } | |
3153 | ||
01e2750c RS |
3154 | #ifdef DBX_OUTPUT_LBRAC |
3155 | DBX_OUTPUT_LBRAC (asmfile, buf); | |
3156 | #else | |
e8638df0 | 3157 | fprintf (asmfile, "%s%d,0,0,", ASM_STABN_OP, N_LBRAC); |
00fe048c | 3158 | assemble_name (asmfile, buf); |
01571284 | 3159 | #if DBX_BLOCKS_FUNCTION_RELATIVE |
02e3f1a8 | 3160 | putc ('-', asmfile); |
00262c8a | 3161 | assemble_name (asmfile, begin_label); |
01571284 | 3162 | #endif |
00fe048c | 3163 | fprintf (asmfile, "\n"); |
01e2750c | 3164 | #endif |
00fe048c | 3165 | } |
00fe048c | 3166 | |
00fe048c | 3167 | /* Output the subblocks. */ |
0d92cbff | 3168 | dbxout_block (BLOCK_SUBBLOCKS (block), depth + 1, NULL_TREE); |
00fe048c RS |
3169 | |
3170 | /* Refer to the marker for the end of the block. */ | |
711d4bb3 | 3171 | if (depth > 0 && did_output) |
00fe048c RS |
3172 | { |
3173 | char buf[20]; | |
3174 | ASM_GENERATE_INTERNAL_LABEL (buf, "LBE", blocknum); | |
01e2750c RS |
3175 | #ifdef DBX_OUTPUT_RBRAC |
3176 | DBX_OUTPUT_RBRAC (asmfile, buf); | |
3177 | #else | |
e8638df0 | 3178 | fprintf (asmfile, "%s%d,0,0,", ASM_STABN_OP, N_RBRAC); |
00fe048c | 3179 | assemble_name (asmfile, buf); |
01571284 | 3180 | #if DBX_BLOCKS_FUNCTION_RELATIVE |
02e3f1a8 | 3181 | putc ('-', asmfile); |
00262c8a | 3182 | assemble_name (asmfile, begin_label); |
01571284 | 3183 | #endif |
00fe048c | 3184 | fprintf (asmfile, "\n"); |
01e2750c | 3185 | #endif |
00fe048c RS |
3186 | } |
3187 | } | |
3188 | block = BLOCK_CHAIN (block); | |
3189 | } | |
3190 | } | |
3191 | ||
3192 | /* Output the information about a function and its arguments and result. | |
3193 | Usually this follows the function's code, | |
3194 | but on some systems, it comes before. */ | |
3195 | ||
c3fb23f4 | 3196 | #if defined (DBX_DEBUGGING_INFO) |
00fe048c | 3197 | static void |
7080f735 | 3198 | dbxout_begin_function (tree decl) |
00fe048c | 3199 | { |
6a08f7b3 DP |
3200 | int saved_tree_used1 = TREE_USED (decl); |
3201 | TREE_USED (decl) = 1; | |
3202 | if (DECL_NAME (DECL_RESULT (decl)) != 0) | |
3203 | { | |
7080f735 | 3204 | int saved_tree_used2 = TREE_USED (DECL_RESULT (decl)); |
6a08f7b3 DP |
3205 | TREE_USED (DECL_RESULT (decl)) = 1; |
3206 | dbxout_symbol (decl, 0); | |
3207 | TREE_USED (DECL_RESULT (decl)) = saved_tree_used2; | |
3208 | } | |
3209 | else | |
3210 | dbxout_symbol (decl, 0); | |
3211 | TREE_USED (decl) = saved_tree_used1; | |
3212 | ||
00fe048c RS |
3213 | dbxout_parms (DECL_ARGUMENTS (decl)); |
3214 | if (DECL_NAME (DECL_RESULT (decl)) != 0) | |
3215 | dbxout_symbol (DECL_RESULT (decl), 1); | |
3216 | } | |
c3fb23f4 | 3217 | #endif /* DBX_DEBUGGING_INFO */ |
00fe048c | 3218 | |
4f70758f | 3219 | #endif /* DBX_DEBUGGING_INFO || XCOFF_DEBUGGING_INFO */ |
17211ab5 GK |
3220 | |
3221 | #include "gt-dbxout.h" |