1 /* Output sdb-format symbol table information from GNU compiler.
2 Copyright (C) 1988, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
3 2000, 2001 Free Software Foundation, Inc.
5 This file is part of GNU CC.
7 GNU CC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GNU CC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU CC; see the file COPYING. If not, write to
19 the Free Software Foundation, 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
22 /* mike@tredysvr.Tredydev.Unisys.COM says:
23 I modified the struct.c example and have a nm of a .o resulting from the
24 AT&T C compiler. From the example below I would conclude the following:
26 1. All .defs from structures are emitted as scanned. The example below
27 clearly shows the symbol table entries for BoxRec2 are after the first
30 2. All functions and their locals (including statics) are emitted as scanned.
32 3. All nested unnamed union and structure .defs must be emitted before
33 the structure in which they are nested. The AT&T assembler is a
34 one pass beast as far as symbolics are concerned.
36 4. All structure .defs are emitted before the typedefs that refer to them.
38 5. All top level static and external variable definitions are moved to the
39 end of file with all top level statics occurring first before externs.
41 6. All undefined references are at the end of the file.
46 #ifdef SDB_DEBUGGING_INFO
53 #include "insn-config.h"
62 /* 1 if PARM is passed to this function in memory. */
64 #define PARM_PASSED_IN_MEMORY(PARM) \
65 (GET_CODE (DECL_INCOMING_RTL (PARM)) == MEM)
67 /* A C expression for the integer offset value of an automatic variable
68 (C_AUTO) having address X (an RTX). */
69 #ifndef DEBUGGER_AUTO_OFFSET
70 #define DEBUGGER_AUTO_OFFSET(X) \
71 (GET_CODE (X) == PLUS ? INTVAL (XEXP (X, 1)) : 0)
74 /* A C expression for the integer offset value of an argument (C_ARG)
75 having address X (an RTX). The nominal offset is OFFSET. */
76 #ifndef DEBUGGER_ARG_OFFSET
77 #define DEBUGGER_ARG_OFFSET(OFFSET, X) (OFFSET)
80 /* Line number of beginning of current function, minus one.
81 Negative means not in a function or not using sdb. */
83 int sdb_begin_function_line = -1;
85 /* Counter to generate unique "names" for nameless struct members. */
87 static int unnamed_struct_number = 0;
89 extern FILE *asm_out_file;
91 extern tree current_function_decl;
95 static void sdbout_init PARAMS ((FILE *, const char *));
96 static void sdbout_start_source_file PARAMS ((unsigned, const char *));
97 static void sdbout_end_source_file PARAMS ((unsigned));
98 static void sdbout_begin_block PARAMS ((FILE *, unsigned, unsigned));
99 static void sdbout_end_block PARAMS ((FILE *, unsigned, unsigned));
100 static char *gen_fake_label PARAMS ((void));
101 static int plain_type PARAMS ((tree));
102 static int template_name_p PARAMS ((tree));
103 static void sdbout_record_type_name PARAMS ((tree));
104 static int plain_type_1 PARAMS ((tree, int));
105 static void sdbout_block PARAMS ((tree));
106 static void sdbout_syms PARAMS ((tree));
107 #ifdef SDB_ALLOW_FORWARD_REFERENCES
108 static void sdbout_queue_anonymous_type PARAMS ((tree));
109 static void sdbout_dequeue_anonymous_types PARAMS ((void));
111 static void sdbout_type PARAMS ((tree));
112 static void sdbout_field_types PARAMS ((tree));
113 static void sdbout_one_type PARAMS ((tree));
114 static void sdbout_parms PARAMS ((tree));
115 static void sdbout_reg_parms PARAMS ((tree));
117 /* Random macros describing parts of SDB data. */
119 /* Put something here if lines get too long */
122 /* Default value of delimiter is ";". */
124 #define SDB_DELIM ";"
127 /* Maximum number of dimensions the assembler will allow. */
129 #define SDB_MAX_DIM 4
133 #define PUT_SDB_SCL(a) fprintf(asm_out_file, "\t.scl\t%d%s", (a), SDB_DELIM)
136 #ifndef PUT_SDB_INT_VAL
137 #define PUT_SDB_INT_VAL(a) \
139 fputs ("\t.val\t", asm_out_file); \
140 fprintf (asm_out_file, HOST_WIDE_INT_PRINT_DEC, (HOST_WIDE_INT)(a)); \
141 fprintf (asm_out_file, "%s", SDB_DELIM); \
147 #define PUT_SDB_VAL(a) \
148 ( fputs ("\t.val\t", asm_out_file), \
149 output_addr_const (asm_out_file, (a)), \
150 fprintf (asm_out_file, SDB_DELIM))
154 #define PUT_SDB_DEF(a) \
155 do { fprintf (asm_out_file, "\t.def\t"); \
156 assemble_name (asm_out_file, a); \
157 fprintf (asm_out_file, SDB_DELIM); } while (0)
160 #ifndef PUT_SDB_PLAIN_DEF
161 #define PUT_SDB_PLAIN_DEF(a) fprintf(asm_out_file,"\t.def\t.%s%s",a, SDB_DELIM)
164 #ifndef PUT_SDB_ENDEF
165 #define PUT_SDB_ENDEF fputs("\t.endef\n", asm_out_file)
169 #define PUT_SDB_TYPE(a) fprintf(asm_out_file, "\t.type\t0%o%s", a, SDB_DELIM)
173 #define PUT_SDB_SIZE(a) \
175 fputs ("\t.size\t", asm_out_file); \
176 fprintf (asm_out_file, HOST_WIDE_INT_PRINT_DEC, (HOST_WIDE_INT)(a)); \
177 fprintf (asm_out_file, "%s", SDB_DELIM); \
181 #ifndef PUT_SDB_START_DIM
182 #define PUT_SDB_START_DIM fprintf(asm_out_file, "\t.dim\t")
185 #ifndef PUT_SDB_NEXT_DIM
186 #define PUT_SDB_NEXT_DIM(a) fprintf(asm_out_file, "%d,", a)
189 #ifndef PUT_SDB_LAST_DIM
190 #define PUT_SDB_LAST_DIM(a) fprintf(asm_out_file, "%d%s", a, SDB_DELIM)
194 #define PUT_SDB_TAG(a) \
195 do { fprintf (asm_out_file, "\t.tag\t"); \
196 assemble_name (asm_out_file, a); \
197 fprintf (asm_out_file, SDB_DELIM); } while (0)
200 #ifndef PUT_SDB_BLOCK_START
201 #define PUT_SDB_BLOCK_START(LINE) \
202 fprintf (asm_out_file, \
203 "\t.def\t.bb%s\t.val\t.%s\t.scl\t100%s\t.line\t%d%s\t.endef\n", \
204 SDB_DELIM, SDB_DELIM, SDB_DELIM, (LINE), SDB_DELIM)
207 #ifndef PUT_SDB_BLOCK_END
208 #define PUT_SDB_BLOCK_END(LINE) \
209 fprintf (asm_out_file, \
210 "\t.def\t.eb%s\t.val\t.%s\t.scl\t100%s\t.line\t%d%s\t.endef\n", \
211 SDB_DELIM, SDB_DELIM, SDB_DELIM, (LINE), SDB_DELIM)
214 #ifndef PUT_SDB_FUNCTION_START
215 #define PUT_SDB_FUNCTION_START(LINE) \
216 fprintf (asm_out_file, \
217 "\t.def\t.bf%s\t.val\t.%s\t.scl\t101%s\t.line\t%d%s\t.endef\n", \
218 SDB_DELIM, SDB_DELIM, SDB_DELIM, (LINE), SDB_DELIM)
221 #ifndef PUT_SDB_FUNCTION_END
222 #define PUT_SDB_FUNCTION_END(LINE) \
223 fprintf (asm_out_file, \
224 "\t.def\t.ef%s\t.val\t.%s\t.scl\t101%s\t.line\t%d%s\t.endef\n", \
225 SDB_DELIM, SDB_DELIM, SDB_DELIM, (LINE), SDB_DELIM)
228 #ifndef PUT_SDB_EPILOGUE_END
229 #define PUT_SDB_EPILOGUE_END(NAME) \
230 do { fprintf (asm_out_file, "\t.def\t"); \
231 assemble_name (asm_out_file, NAME); \
232 fprintf (asm_out_file, \
233 "%s\t.val\t.%s\t.scl\t-1%s\t.endef\n", \
234 SDB_DELIM, SDB_DELIM, SDB_DELIM); } while (0)
237 #ifndef SDB_GENERATE_FAKE
238 #define SDB_GENERATE_FAKE(BUFFER, NUMBER) \
239 sprintf ((BUFFER), ".%dfake", (NUMBER));
242 /* Return the sdb tag identifier string for TYPE
243 if TYPE has already been defined; otherwise return a null pointer. */
245 #define KNOWN_TYPE_TAG(type) TYPE_SYMTAB_POINTER (type)
247 /* Set the sdb tag identifier string for TYPE to NAME. */
249 #define SET_KNOWN_TYPE_TAG(TYPE, NAME) \
250 TYPE_SYMTAB_POINTER (TYPE) = (NAME)
252 /* Return the name (a string) of the struct, union or enum tag
253 described by the TREE_LIST node LINK. This is 0 for an anonymous one. */
255 #define TAG_NAME(link) \
256 (((link) && TREE_PURPOSE ((link)) \
257 && IDENTIFIER_POINTER (TREE_PURPOSE ((link)))) \
258 ? IDENTIFIER_POINTER (TREE_PURPOSE ((link))) : (char *) 0)
260 /* Ensure we don't output a negative line number. */
261 #define MAKE_LINE_SAFE(line) \
262 if (line <= sdb_begin_function_line) line = sdb_begin_function_line + 1
264 /* Perform linker optimization of merging header file definitions together
265 for targets with MIPS_DEBUGGING_INFO defined. This won't work without a
266 post 960826 version of GAS. Nothing breaks with earlier versions of GAS,
267 the optimization just won't be done. The native assembler already has the
268 necessary support. */
270 #ifdef MIPS_DEBUGGING_INFO
272 #ifndef PUT_SDB_SRC_FILE
273 #define PUT_SDB_SRC_FILE(FILENAME) \
274 output_file_directive (asm_out_file, (FILENAME))
277 /* ECOFF linkers have an optimization that does the same kind of thing as
278 N_BINCL/E_INCL in stabs: eliminate duplicate debug information in the
279 executable. To achieve this, GCC must output a .file for each file
282 /* This is a stack of input files. */
286 struct sdb_file *next;
290 /* This is the top of the stack. */
292 static struct sdb_file *current_file;
294 #endif /* MIPS_DEBUGGING_INFO */
296 /* The debug hooks structure. */
297 struct gcc_debug_hooks sdb_debug_hooks =
300 debug_nothing_file_charstar,
301 debug_nothing_int_charstar,
302 debug_nothing_int_charstar,
303 sdbout_start_source_file,
304 sdbout_end_source_file,
311 /* return the tag identifier for type
315 tag_of_ru_type (type,link)
318 if (TYPE_SYMTAB_ADDRESS (type))
319 return TYPE_SYMTAB_ADDRESS (type);
320 if (link && TREE_PURPOSE (link)
321 && IDENTIFIER_POINTER (TREE_PURPOSE (link)))
322 TYPE_SYMTAB_ADDRESS (type) = IDENTIFIER_POINTER (TREE_PURPOSE (link));
324 return (char *) TYPE_SYMTAB_ADDRESS (type);
328 /* Return a unique string to name an anonymous type. */
335 SDB_GENERATE_FAKE (label, unnamed_struct_number);
336 unnamed_struct_number++;
337 labelstr = (char *) permalloc (strlen (label) + 1);
338 strcpy (labelstr, label);
342 /* Return the number which describes TYPE for SDB.
343 For pointers, etc., this function is recursive.
344 Each record, union or enumeral type must already have had a
345 tag number output. */
347 /* The number is given by d6d5d4d3d2d1bbbb
348 where bbbb is 4 bit basic type, and di indicate one of notype,ptr,fn,array.
349 Thus, char *foo () has bbbb=T_CHAR
352 N_BTMASK= 017 1111 basic type field.
353 N_TSHIFT= 2 derived type shift
354 N_BTSHFT= 4 Basic type shift */
356 /* Produce the number that describes a pointer, function or array type.
357 PREV is the number describing the target, value or element type.
358 DT_type describes how to transform that type. */
359 #define PUSH_DERIVED_LEVEL(DT_type,PREV) \
360 ((((PREV) & ~(int)N_BTMASK) << (int)N_TSHIFT) \
361 | ((int)DT_type << (int)N_BTSHFT) \
362 | ((PREV) & (int)N_BTMASK))
364 /* Number of elements used in sdb_dims. */
365 static int sdb_n_dims = 0;
367 /* Table of array dimensions of current type. */
368 static int sdb_dims[SDB_MAX_DIM];
370 /* Size of outermost array currently being processed. */
371 static int sdb_type_size = -1;
377 int val = plain_type_1 (type, 0);
379 /* If we have already saved up some array dimensions, print them now. */
384 for (i = sdb_n_dims - 1; i > 0; i--)
385 PUT_SDB_NEXT_DIM (sdb_dims[i]);
386 PUT_SDB_LAST_DIM (sdb_dims[0]);
389 sdb_type_size = int_size_in_bytes (type);
390 /* Don't kill sdb if type is not laid out or has variable size. */
391 if (sdb_type_size < 0)
394 /* If we have computed the size of an array containing this type,
396 if (sdb_type_size >= 0)
398 PUT_SDB_SIZE (sdb_type_size);
405 template_name_p (name)
408 register const char *ptr = IDENTIFIER_POINTER (name);
409 while (*ptr && *ptr != '<')
416 sdbout_record_type_name (type)
419 const char *name = 0;
422 if (KNOWN_TYPE_TAG (type))
425 if (TYPE_NAME (type) != 0)
428 /* Find the IDENTIFIER_NODE for the type name. */
429 if (TREE_CODE (TYPE_NAME (type)) == IDENTIFIER_NODE)
430 t = TYPE_NAME (type);
431 else if (TREE_CODE (TYPE_NAME (type)) == TYPE_DECL)
433 t = DECL_NAME (TYPE_NAME (type));
434 /* The DECL_NAME for templates includes "<>", which breaks
435 most assemblers. Use its assembler name instead, which
436 has been mangled into being safe. */
437 if (t && template_name_p (t))
438 t = DECL_ASSEMBLER_NAME (TYPE_NAME (type));
441 /* Now get the name as a string, or invent one. */
443 name = IDENTIFIER_POINTER (t);
446 no_name = (name == 0 || *name == 0);
448 name = gen_fake_label ();
450 SET_KNOWN_TYPE_TAG (type, name);
451 #ifdef SDB_ALLOW_FORWARD_REFERENCES
453 sdbout_queue_anonymous_type (type);
457 /* Return the .type value for type TYPE.
459 LEVEL indicates how many levels deep we have recursed into the type.
460 The SDB debug format can only represent 6 derived levels of types.
461 After that, we must output inaccurate debug info. We deliberately
462 stop before the 7th level, so that ADA recursive types will not give an
466 plain_type_1 (type, level)
471 type = void_type_node;
472 else if (type == error_mark_node)
473 type = integer_type_node;
475 type = TYPE_MAIN_VARIANT (type);
477 switch (TREE_CODE (type))
484 int size = int_size_in_bytes (type) * BITS_PER_UNIT;
486 /* Carefully distinguish all the standard types of C,
487 without messing up if the language is not C.
488 Note that we check only for the names that contain spaces;
489 other names might occur by coincidence in other languages. */
490 if (TYPE_NAME (type) != 0
491 && TREE_CODE (TYPE_NAME (type)) == TYPE_DECL
492 && DECL_NAME (TYPE_NAME (type)) != 0
493 && TREE_CODE (DECL_NAME (TYPE_NAME (type))) == IDENTIFIER_NODE)
496 = IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (type)));
498 if (!strcmp (name, "char"))
500 if (!strcmp (name, "unsigned char"))
502 if (!strcmp (name, "signed char"))
504 if (!strcmp (name, "int"))
506 if (!strcmp (name, "unsigned int"))
508 if (!strcmp (name, "short int"))
510 if (!strcmp (name, "short unsigned int"))
512 if (!strcmp (name, "long int"))
514 if (!strcmp (name, "long unsigned int"))
518 if (size == INT_TYPE_SIZE)
519 return (TREE_UNSIGNED (type) ? T_UINT : T_INT);
520 if (size == CHAR_TYPE_SIZE)
521 return (TREE_UNSIGNED (type) ? T_UCHAR : T_CHAR);
522 if (size == SHORT_TYPE_SIZE)
523 return (TREE_UNSIGNED (type) ? T_USHORT : T_SHORT);
524 if (size == LONG_TYPE_SIZE)
525 return (TREE_UNSIGNED (type) ? T_ULONG : T_LONG);
526 if (size == LONG_LONG_TYPE_SIZE) /* better than nothing */
527 return (TREE_UNSIGNED (type) ? T_ULONG : T_LONG);
533 int precision = TYPE_PRECISION (type);
534 if (precision == FLOAT_TYPE_SIZE)
536 if (precision == DOUBLE_TYPE_SIZE)
538 #ifdef EXTENDED_SDB_BASIC_TYPES
539 if (precision == LONG_DOUBLE_TYPE_SIZE)
542 if (precision == LONG_DOUBLE_TYPE_SIZE)
543 return T_DOUBLE; /* better than nothing */
554 m = plain_type_1 (TREE_TYPE (type), level+1);
555 if (sdb_n_dims < SDB_MAX_DIM)
556 sdb_dims[sdb_n_dims++]
557 = (TYPE_DOMAIN (type)
558 && TYPE_MIN_VALUE (TYPE_DOMAIN (type)) != 0
559 && TYPE_MAX_VALUE (TYPE_DOMAIN (type)) != 0
560 && host_integerp (TYPE_MAX_VALUE (TYPE_DOMAIN (type)), 0)
561 && host_integerp (TYPE_MIN_VALUE (TYPE_DOMAIN (type)), 0)
562 ? (tree_low_cst (TYPE_MAX_VALUE (TYPE_DOMAIN (type)), 0)
563 - tree_low_cst (TYPE_MIN_VALUE (TYPE_DOMAIN (type)), 0) + 1)
566 return PUSH_DERIVED_LEVEL (DT_ARY, m);
571 case QUAL_UNION_TYPE:
575 #ifdef SDB_ALLOW_FORWARD_REFERENCES
576 sdbout_record_type_name (type);
578 #ifndef SDB_ALLOW_UNKNOWN_REFERENCES
579 if ((TREE_ASM_WRITTEN (type) && KNOWN_TYPE_TAG (type) != 0)
580 #ifdef SDB_ALLOW_FORWARD_REFERENCES
581 || TYPE_MODE (type) != VOIDmode
586 /* Output the referenced structure tag name
587 only if the .def has already been finished.
588 At least on 386, the Unix assembler
589 cannot handle forward references to tags. */
590 /* But the 88100, it requires them, sigh... */
591 /* And the MIPS requires unknown refs as well... */
592 tag = KNOWN_TYPE_TAG (type);
594 /* These 3 lines used to follow the close brace.
595 However, a size of 0 without a tag implies a tag of 0,
596 so if we don't know a tag, we can't mention the size. */
597 sdb_type_size = int_size_in_bytes (type);
598 if (sdb_type_size < 0)
601 return ((TREE_CODE (type) == RECORD_TYPE) ? T_STRUCT
602 : (TREE_CODE (type) == UNION_TYPE) ? T_UNION
603 : (TREE_CODE (type) == QUAL_UNION_TYPE) ? T_UNION
613 m = plain_type_1 (TREE_TYPE (type), level+1);
614 return PUSH_DERIVED_LEVEL (DT_PTR, m);
623 m = plain_type_1 (TREE_TYPE (type), level+1);
624 return PUSH_DERIVED_LEVEL (DT_FCN, m);
631 /* Output the symbols defined in block number DO_BLOCK.
633 This function works by walking the tree structure of blocks,
634 counting blocks until it finds the desired block. */
636 static int do_block = 0;
644 /* Ignore blocks never expanded or otherwise marked as real. */
645 if (TREE_USED (block))
647 /* When we reach the specified block, output its symbols. */
648 if (BLOCK_NUMBER (block) == do_block)
649 sdbout_syms (BLOCK_VARS (block));
651 /* If we are past the specified block, stop the scan. */
652 if (BLOCK_NUMBER (block) > do_block)
655 /* Scan the blocks within this block. */
656 sdbout_block (BLOCK_SUBBLOCKS (block));
659 block = BLOCK_CHAIN (block);
663 /* Call sdbout_symbol on each decl in the chain SYMS. */
671 if (TREE_CODE (syms) != LABEL_DECL)
672 sdbout_symbol (syms, 1);
673 syms = TREE_CHAIN (syms);
677 /* Output SDB information for a symbol described by DECL.
678 LOCAL is nonzero if the symbol is not file-scope. */
681 sdbout_symbol (decl, local)
685 tree type = TREE_TYPE (decl);
686 tree context = NULL_TREE;
691 sdbout_one_type (type);
693 #if 0 /* This loses when functions are marked to be ignored,
694 which happens in the C++ front end. */
695 if (DECL_IGNORED_P (decl))
699 switch (TREE_CODE (decl))
702 /* Enum values are defined by defining the enum type. */
706 /* Don't mention a nested function under its parent. */
707 context = decl_function_context (decl);
708 if (context == current_function_decl)
710 /* Check DECL_INITIAL to distinguish declarations from definitions.
711 Don't output debug info here for declarations; they will have
712 a DECL_INITIAL value of 0. */
713 if (! DECL_INITIAL (decl))
715 if (GET_CODE (DECL_RTL (decl)) != MEM
716 || GET_CODE (XEXP (DECL_RTL (decl), 0)) != SYMBOL_REF)
718 PUT_SDB_DEF (IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl)));
719 PUT_SDB_VAL (XEXP (DECL_RTL (decl), 0));
720 PUT_SDB_SCL (TREE_PUBLIC (decl) ? C_EXT : C_STAT);
724 /* Done with tagged types. */
725 if (DECL_NAME (decl) == 0)
727 if (DECL_IGNORED_P (decl))
730 /* Output typedef name. */
731 if (template_name_p (DECL_NAME (decl)))
732 PUT_SDB_DEF (IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl)));
734 PUT_SDB_DEF (IDENTIFIER_POINTER (DECL_NAME (decl)));
735 PUT_SDB_SCL (C_TPDEF);
739 /* Parm decls go in their own separate chains
740 and are output by sdbout_reg_parms and sdbout_parms. */
744 /* Don't mention a variable that is external.
745 Let the file that defines it describe it. */
746 if (DECL_EXTERNAL (decl))
749 /* Ignore __FUNCTION__, etc. */
750 if (DECL_IGNORED_P (decl))
753 /* If there was an error in the declaration, don't dump core
754 if there is no RTL associated with the variable doesn't
756 if (!DECL_RTL_SET_P (decl))
760 eliminate_regs (DECL_RTL (decl), 0, NULL_RTX));
761 #ifdef LEAF_REG_REMAP
762 if (current_function_uses_only_leaf_regs)
763 leaf_renumber_regs_insn (DECL_RTL (decl));
765 value = DECL_RTL (decl);
767 /* Don't mention a variable at all
768 if it was completely optimized into nothingness.
770 If DECL was from an inline function, then its rtl
771 is not identically the rtl that was used in this
772 particular compilation. */
773 if (GET_CODE (value) == REG)
775 regno = REGNO (DECL_RTL (decl));
776 if (regno >= FIRST_PSEUDO_REGISTER)
779 else if (GET_CODE (value) == SUBREG)
783 while (GET_CODE (value) == SUBREG)
784 value = SUBREG_REG (value);
785 if (GET_CODE (value) == REG)
787 if (REGNO (value) >= FIRST_PSEUDO_REGISTER)
790 regno = REGNO (alter_subreg (DECL_RTL (decl)));
791 value = DECL_RTL (decl);
793 /* Don't output anything if an auto variable
794 gets RTL that is static.
795 GAS version 2.2 can't handle such output. */
796 else if (GET_CODE (value) == MEM && CONSTANT_P (XEXP (value, 0))
797 && ! TREE_STATIC (decl))
800 /* Emit any structure, union, or enum type that has not been output.
801 This occurs for tag-less structs (et al) used to declare variables
803 if (TREE_CODE (type) == ENUMERAL_TYPE
804 || TREE_CODE (type) == RECORD_TYPE
805 || TREE_CODE (type) == UNION_TYPE
806 || TREE_CODE (type) == QUAL_UNION_TYPE)
808 if (COMPLETE_TYPE_P (type) /* not a forward reference */
809 && KNOWN_TYPE_TAG (type) == 0) /* not yet declared */
810 sdbout_one_type (type);
813 /* Defer SDB information for top-level initialized variables! */
815 && GET_CODE (value) == MEM
816 && DECL_INITIAL (decl))
819 /* C++ in 2.3 makes nameless symbols. That will be fixed later.
820 For now, avoid crashing. */
821 if (DECL_NAME (decl) == NULL_TREE)
824 /* Record the name for, starting a symtab entry. */
826 name = IDENTIFIER_POINTER (DECL_NAME (decl));
828 name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl));
830 if (GET_CODE (value) == MEM
831 && GET_CODE (XEXP (value, 0)) == SYMBOL_REF)
834 if (TREE_PUBLIC (decl))
836 PUT_SDB_VAL (XEXP (value, 0));
841 PUT_SDB_VAL (XEXP (value, 0));
842 PUT_SDB_SCL (C_STAT);
848 PUT_SDB_INT_VAL (DBX_REGISTER_NUMBER (regno));
851 else if (GET_CODE (value) == MEM
852 && (GET_CODE (XEXP (value, 0)) == MEM
853 || (GET_CODE (XEXP (value, 0)) == REG
854 && REGNO (XEXP (value, 0)) != HARD_FRAME_POINTER_REGNUM
855 && REGNO (XEXP (value, 0)) != STACK_POINTER_REGNUM)))
856 /* If the value is indirect by memory or by a register
857 that isn't the frame pointer
858 then it means the object is variable-sized and address through
859 that register or stack slot. COFF has no way to represent this
860 so all we can do is output the variable as a pointer. */
863 if (GET_CODE (XEXP (value, 0)) == REG)
865 PUT_SDB_INT_VAL (DBX_REGISTER_NUMBER (REGNO (XEXP (value, 0))));
870 /* DECL_RTL looks like (MEM (MEM (PLUS (REG...)
872 We want the value of that CONST_INT. */
873 /* Encore compiler hates a newline in a macro arg, it seems. */
874 PUT_SDB_INT_VAL (DEBUGGER_AUTO_OFFSET
875 (XEXP (XEXP (value, 0), 0)));
876 PUT_SDB_SCL (C_AUTO);
879 /* Effectively do build_pointer_type, but don't cache this type,
880 since it might be temporary whereas the type it points to
881 might have been saved for inlining. */
882 /* Don't use REFERENCE_TYPE because dbx can't handle that. */
883 type = make_node (POINTER_TYPE);
884 TREE_TYPE (type) = TREE_TYPE (decl);
886 else if (GET_CODE (value) == MEM
887 && ((GET_CODE (XEXP (value, 0)) == PLUS
888 && GET_CODE (XEXP (XEXP (value, 0), 0)) == REG
889 && GET_CODE (XEXP (XEXP (value, 0), 1)) == CONST_INT)
890 /* This is for variables which are at offset zero from
891 the frame pointer. This happens on the Alpha.
892 Non-frame pointer registers are excluded above. */
893 || (GET_CODE (XEXP (value, 0)) == REG)))
895 /* DECL_RTL looks like (MEM (PLUS (REG...) (CONST_INT...)))
896 or (MEM (REG...)). We want the value of that CONST_INT
899 PUT_SDB_INT_VAL (DEBUGGER_AUTO_OFFSET (XEXP (value, 0)));
900 PUT_SDB_SCL (C_AUTO);
902 else if (GET_CODE (value) == MEM && GET_CODE (XEXP (value, 0)) == CONST)
904 /* Handle an obscure case which can arise when optimizing and
905 when there are few available registers. (This is *always*
906 the case for i386/i486 targets). The DECL_RTL looks like
907 (MEM (CONST ...)) even though this variable is a local `auto'
908 or a local `register' variable. In effect, what has happened
909 is that the reload pass has seen that all assignments and
910 references for one such a local variable can be replaced by
911 equivalent assignments and references to some static storage
912 variable, thereby avoiding the need for a register. In such
913 cases we're forced to lie to debuggers and tell them that
914 this variable was itself `static'. */
916 PUT_SDB_VAL (XEXP (XEXP (value, 0), 0));
917 PUT_SDB_SCL (C_STAT);
921 /* It is something we don't know how to represent for SDB. */
929 PUT_SDB_TYPE (plain_type (type));
933 /* Output SDB information for a top-level initialized variable
934 that has been delayed. */
937 sdbout_toplevel_data (decl)
940 tree type = TREE_TYPE (decl);
942 if (DECL_IGNORED_P (decl))
945 if (! (TREE_CODE (decl) == VAR_DECL
946 && GET_CODE (DECL_RTL (decl)) == MEM
947 && DECL_INITIAL (decl)))
950 PUT_SDB_DEF (IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl)));
951 PUT_SDB_VAL (XEXP (DECL_RTL (decl), 0));
952 if (TREE_PUBLIC (decl))
958 PUT_SDB_SCL (C_STAT);
960 PUT_SDB_TYPE (plain_type (type));
964 #ifdef SDB_ALLOW_FORWARD_REFERENCES
966 /* Machinery to record and output anonymous types. */
968 static tree anonymous_types;
971 sdbout_queue_anonymous_type (type)
974 anonymous_types = tree_cons (NULL_TREE, type, anonymous_types);
978 sdbout_dequeue_anonymous_types ()
980 register tree types, link;
982 while (anonymous_types)
984 types = nreverse (anonymous_types);
985 anonymous_types = NULL_TREE;
987 for (link = types; link; link = TREE_CHAIN (link))
989 register tree type = TREE_VALUE (link);
991 if (type && ! TREE_ASM_WRITTEN (type))
992 sdbout_one_type (type);
999 /* Given a chain of ..._TYPE nodes, all of which have names,
1000 output definitions of those names, as typedefs. */
1003 sdbout_types (types)
1004 register tree types;
1008 for (link = types; link; link = TREE_CHAIN (link))
1009 sdbout_one_type (link);
1011 #ifdef SDB_ALLOW_FORWARD_REFERENCES
1012 sdbout_dequeue_anonymous_types ();
1020 if (type == error_mark_node)
1021 type = integer_type_node;
1022 PUT_SDB_TYPE (plain_type (type));
1025 /* Output types of the fields of type TYPE, if they are structs.
1027 Formerly did not chase through pointer types, since that could be circular.
1028 They must come before TYPE, since forward refs are not allowed.
1029 Now james@bigtex.cactus.org says to try them. */
1032 sdbout_field_types (type)
1037 for (tail = TYPE_FIELDS (type); tail; tail = TREE_CHAIN (tail))
1038 /* This condition should match the one for emitting the actual
1040 if (TREE_CODE (tail) == FIELD_DECL
1043 && host_integerp (DECL_SIZE (tail), 1)
1044 && host_integerp (bit_position (tail), 0))
1046 if (POINTER_TYPE_P (TREE_TYPE (tail)))
1047 sdbout_one_type (TREE_TYPE (TREE_TYPE (tail)));
1049 sdbout_one_type (TREE_TYPE (tail));
1053 /* Use this to put out the top level defined record and union types
1054 for later reference. If this is a struct with a name, then put that
1055 name out. Other unnamed structs will have .xxfake labels generated so
1056 that they may be referred to later.
1057 The label will be stored in the KNOWN_TYPE_TAG slot of a type.
1058 It may NOT be called recursively. */
1061 sdbout_one_type (type)
1064 if (current_function_decl != NULL_TREE
1065 && DECL_SECTION_NAME (current_function_decl) != NULL_TREE)
1066 ; /* Don't change section amid function. */
1070 switch (TREE_CODE (type))
1074 case QUAL_UNION_TYPE:
1076 type = TYPE_MAIN_VARIANT (type);
1077 /* Don't output a type twice. */
1078 if (TREE_ASM_WRITTEN (type))
1079 /* James said test TREE_ASM_BEING_WRITTEN here. */
1082 /* Output nothing if type is not yet defined. */
1083 if (!COMPLETE_TYPE_P (type))
1086 TREE_ASM_WRITTEN (type) = 1;
1088 /* This is reputed to cause trouble with the following case,
1089 but perhaps checking TYPE_SIZE above will fix it. */
1091 /* Here is a test case:
1097 typedef struct intermediate {
1101 typedef struct badstr {
1106 TREE_ASM_BEING_WRITTEN (type) = 1;
1108 /* This change, which ought to make better output,
1109 used to make the COFF assembler unhappy.
1110 Changes involving KNOWN_TYPE_TAG may fix the problem. */
1111 /* Before really doing anything, output types we want to refer to. */
1112 /* Note that in version 1 the following two lines
1113 are not used if forward references are in use. */
1114 if (TREE_CODE (type) != ENUMERAL_TYPE)
1115 sdbout_field_types (type);
1117 TREE_ASM_WRITTEN (type) = 1;
1121 /* Output a structure type. */
1123 int size = int_size_in_bytes (type);
1126 int i, n_baseclasses = 0;
1128 /* Record the type tag, but not in its permanent place just yet. */
1129 sdbout_record_type_name (type);
1131 PUT_SDB_DEF (KNOWN_TYPE_TAG (type));
1133 switch (TREE_CODE (type))
1136 case QUAL_UNION_TYPE:
1137 PUT_SDB_SCL (C_UNTAG);
1138 PUT_SDB_TYPE (T_UNION);
1143 PUT_SDB_SCL (C_STRTAG);
1144 PUT_SDB_TYPE (T_STRUCT);
1149 PUT_SDB_SCL (C_ENTAG);
1150 PUT_SDB_TYPE (T_ENUM);
1158 PUT_SDB_SIZE (size);
1161 /* Print out the base class information with fields
1162 named after the types they hold. */
1163 /* This is only relevent to aggregate types. TYPE_BINFO is used
1164 for other purposes in an ENUMERAL_TYPE, so we must exclude that
1166 if (TREE_CODE (type) != ENUMERAL_TYPE)
1168 if (TYPE_BINFO (type)
1169 && TYPE_BINFO_BASETYPES (type))
1170 n_baseclasses = TREE_VEC_LENGTH (TYPE_BINFO_BASETYPES (type));
1171 for (i = 0; i < n_baseclasses; i++)
1173 tree child = TREE_VEC_ELT (BINFO_BASETYPES (TYPE_BINFO (type)),
1175 tree child_type = BINFO_TYPE (child);
1176 tree child_type_name;
1177 if (TYPE_NAME (child_type) == 0)
1179 if (TREE_CODE (TYPE_NAME (child_type)) == IDENTIFIER_NODE)
1180 child_type_name = TYPE_NAME (child_type);
1181 else if (TREE_CODE (TYPE_NAME (child_type)) == TYPE_DECL)
1183 child_type_name = DECL_NAME (TYPE_NAME (child_type));
1184 if (child_type_name && template_name_p (child_type_name))
1186 = DECL_ASSEMBLER_NAME (TYPE_NAME (child_type));
1192 PUT_SDB_DEF (IDENTIFIER_POINTER (child_type_name));
1193 PUT_SDB_INT_VAL (tree_low_cst (BINFO_OFFSET (child), 0));
1194 PUT_SDB_SCL (member_scl);
1195 sdbout_type (BINFO_TYPE (child));
1200 /* output the individual fields */
1202 if (TREE_CODE (type) == ENUMERAL_TYPE)
1204 for (tem = TYPE_FIELDS (type); tem; tem = TREE_CHAIN (tem))
1205 if (host_integerp (TREE_VALUE (tem), 0))
1207 PUT_SDB_DEF (IDENTIFIER_POINTER (TREE_PURPOSE (tem)));
1208 PUT_SDB_INT_VAL (tree_low_cst (TREE_VALUE (tem), 0));
1209 PUT_SDB_SCL (C_MOE);
1210 PUT_SDB_TYPE (T_MOE);
1214 else /* record or union type */
1215 for (tem = TYPE_FIELDS (type); tem; tem = TREE_CHAIN (tem))
1216 /* Output the name, type, position (in bits), size (in bits)
1219 /* Omit here the nameless fields that are used to skip bits.
1220 Also omit fields with variable size or position.
1221 Also omit non FIELD_DECL nodes that GNU C++ may put here. */
1222 if (TREE_CODE (tem) == FIELD_DECL
1225 && host_integerp (DECL_SIZE (tem), 1)
1226 && host_integerp (bit_position (tem), 0))
1231 name = IDENTIFIER_POINTER (DECL_NAME (tem));
1233 if (DECL_BIT_FIELD_TYPE (tem))
1235 PUT_SDB_INT_VAL (int_bit_position (tem));
1236 PUT_SDB_SCL (C_FIELD);
1237 sdbout_type (DECL_BIT_FIELD_TYPE (tem));
1238 PUT_SDB_SIZE (tree_low_cst (DECL_SIZE (tem), 1));
1242 PUT_SDB_INT_VAL (int_bit_position (tem) / BITS_PER_UNIT);
1243 PUT_SDB_SCL (member_scl);
1244 sdbout_type (TREE_TYPE (tem));
1248 /* output end of a structure,union, or enumeral definition */
1250 PUT_SDB_PLAIN_DEF ("eos");
1251 PUT_SDB_INT_VAL (size);
1252 PUT_SDB_SCL (C_EOS);
1253 PUT_SDB_TAG (KNOWN_TYPE_TAG (type));
1254 PUT_SDB_SIZE (size);
1264 /* The following two functions output definitions of function parameters.
1265 Each parameter gets a definition locating it in the parameter list.
1266 Each parameter that is a register variable gets a second definition
1267 locating it in the register.
1269 Printing or argument lists in gdb uses the definitions that
1270 locate in the parameter list. But reference to the variable in
1271 expressions uses preferentially the definition as a register. */
1273 /* Output definitions, referring to storage in the parmlist,
1274 of all the parms in PARMS, which is a chain of PARM_DECL nodes. */
1277 sdbout_parms (parms)
1280 for (; parms; parms = TREE_CHAIN (parms))
1281 if (DECL_NAME (parms))
1283 int current_sym_value = 0;
1284 const char *name = IDENTIFIER_POINTER (DECL_NAME (parms));
1286 if (name == 0 || *name == 0)
1287 name = gen_fake_label ();
1289 /* Perform any necessary register eliminations on the parameter's rtl,
1290 so that the debugging output will be accurate. */
1291 DECL_INCOMING_RTL (parms)
1292 = eliminate_regs (DECL_INCOMING_RTL (parms), 0, NULL_RTX);
1293 SET_DECL_RTL (parms,
1294 eliminate_regs (DECL_RTL (parms), 0, NULL_RTX));
1296 if (PARM_PASSED_IN_MEMORY (parms))
1298 rtx addr = XEXP (DECL_INCOMING_RTL (parms), 0);
1301 /* ??? Here we assume that the parm address is indexed
1302 off the frame pointer or arg pointer.
1303 If that is not true, we produce meaningless results,
1304 but do not crash. */
1305 if (GET_CODE (addr) == PLUS
1306 && GET_CODE (XEXP (addr, 1)) == CONST_INT)
1307 current_sym_value = INTVAL (XEXP (addr, 1));
1309 current_sym_value = 0;
1311 if (GET_CODE (DECL_RTL (parms)) == REG
1312 && REGNO (DECL_RTL (parms)) < FIRST_PSEUDO_REGISTER)
1313 type = DECL_ARG_TYPE (parms);
1316 int original_sym_value = current_sym_value;
1318 /* This is the case where the parm is passed as an int or
1319 double and it is converted to a char, short or float
1320 and stored back in the parmlist. In this case, describe
1321 the parm with the variable's declared type, and adjust
1322 the address if the least significant bytes (which we are
1323 using) are not the first ones. */
1324 if (BYTES_BIG_ENDIAN
1325 && TREE_TYPE (parms) != DECL_ARG_TYPE (parms))
1326 current_sym_value +=
1327 (GET_MODE_SIZE (TYPE_MODE (DECL_ARG_TYPE (parms)))
1328 - GET_MODE_SIZE (GET_MODE (DECL_RTL (parms))));
1330 if (GET_CODE (DECL_RTL (parms)) == MEM
1331 && GET_CODE (XEXP (DECL_RTL (parms), 0)) == PLUS
1332 && (GET_CODE (XEXP (XEXP (DECL_RTL (parms), 0), 1))
1334 && (INTVAL (XEXP (XEXP (DECL_RTL (parms), 0), 1))
1335 == current_sym_value))
1336 type = TREE_TYPE (parms);
1339 current_sym_value = original_sym_value;
1340 type = DECL_ARG_TYPE (parms);
1345 PUT_SDB_INT_VAL (DEBUGGER_ARG_OFFSET (current_sym_value, addr));
1346 PUT_SDB_SCL (C_ARG);
1347 PUT_SDB_TYPE (plain_type (type));
1350 else if (GET_CODE (DECL_RTL (parms)) == REG)
1353 /* Parm passed in registers and lives in registers or nowhere. */
1355 /* If parm lives in a register, use that register;
1356 pretend the parm was passed there. It would be more consistent
1357 to describe the register where the parm was passed,
1358 but in practice that register usually holds something else. */
1359 if (REGNO (DECL_RTL (parms)) < FIRST_PSEUDO_REGISTER)
1360 best_rtl = DECL_RTL (parms);
1361 /* If the parm lives nowhere,
1362 use the register where it was passed. */
1364 best_rtl = DECL_INCOMING_RTL (parms);
1367 PUT_SDB_INT_VAL (DBX_REGISTER_NUMBER (REGNO (best_rtl)));
1368 PUT_SDB_SCL (C_REGPARM);
1369 PUT_SDB_TYPE (plain_type (TREE_TYPE (parms)));
1372 else if (GET_CODE (DECL_RTL (parms)) == MEM
1373 && XEXP (DECL_RTL (parms), 0) != const0_rtx)
1375 /* Parm was passed in registers but lives on the stack. */
1377 /* DECL_RTL looks like (MEM (PLUS (REG...) (CONST_INT...))),
1378 in which case we want the value of that CONST_INT,
1379 or (MEM (REG ...)) or (MEM (MEM ...)),
1380 in which case we use a value of zero. */
1381 if (GET_CODE (XEXP (DECL_RTL (parms), 0)) == REG
1382 || GET_CODE (XEXP (DECL_RTL (parms), 0)) == MEM)
1383 current_sym_value = 0;
1385 current_sym_value = INTVAL (XEXP (XEXP (DECL_RTL (parms), 0), 1));
1387 /* Again, this assumes the offset is based on the arg pointer. */
1389 PUT_SDB_INT_VAL (DEBUGGER_ARG_OFFSET (current_sym_value,
1390 XEXP (DECL_RTL (parms), 0)));
1391 PUT_SDB_SCL (C_ARG);
1392 PUT_SDB_TYPE (plain_type (TREE_TYPE (parms)));
1398 /* Output definitions for the places where parms live during the function,
1399 when different from where they were passed, when the parms were passed
1402 It is not useful to do this for parms passed in registers
1403 that live during the function in different registers, because it is
1404 impossible to look in the passed register for the passed value,
1405 so we use the within-the-function register to begin with.
1407 PARMS is a chain of PARM_DECL nodes. */
1410 sdbout_reg_parms (parms)
1413 for (; parms; parms = TREE_CHAIN (parms))
1414 if (DECL_NAME (parms))
1416 const char *name = IDENTIFIER_POINTER (DECL_NAME (parms));
1418 /* Report parms that live in registers during the function
1419 but were passed in memory. */
1420 if (GET_CODE (DECL_RTL (parms)) == REG
1421 && REGNO (DECL_RTL (parms)) < FIRST_PSEUDO_REGISTER
1422 && PARM_PASSED_IN_MEMORY (parms))
1424 if (name == 0 || *name == 0)
1425 name = gen_fake_label ();
1427 PUT_SDB_INT_VAL (DBX_REGISTER_NUMBER (REGNO (DECL_RTL (parms))));
1428 PUT_SDB_SCL (C_REG);
1429 PUT_SDB_TYPE (plain_type (TREE_TYPE (parms)));
1432 /* Report parms that live in memory but not where they were passed. */
1433 else if (GET_CODE (DECL_RTL (parms)) == MEM
1434 && GET_CODE (XEXP (DECL_RTL (parms), 0)) == PLUS
1435 && GET_CODE (XEXP (XEXP (DECL_RTL (parms), 0), 1)) == CONST_INT
1436 && PARM_PASSED_IN_MEMORY (parms)
1437 && ! rtx_equal_p (DECL_RTL (parms), DECL_INCOMING_RTL (parms)))
1439 #if 0 /* ??? It is not clear yet what should replace this. */
1440 int offset = DECL_OFFSET (parms) / BITS_PER_UNIT;
1441 /* A parm declared char is really passed as an int,
1442 so it occupies the least significant bytes.
1443 On a big-endian machine those are not the low-numbered ones. */
1444 if (BYTES_BIG_ENDIAN
1446 && TREE_TYPE (parms) != DECL_ARG_TYPE (parms))
1447 offset += (GET_MODE_SIZE (TYPE_MODE (DECL_ARG_TYPE (parms)))
1448 - GET_MODE_SIZE (GET_MODE (DECL_RTL (parms))));
1449 if (INTVAL (XEXP (XEXP (DECL_RTL (parms), 0), 1)) != offset) {...}
1452 if (name == 0 || *name == 0)
1453 name = gen_fake_label ();
1455 PUT_SDB_INT_VAL (DEBUGGER_AUTO_OFFSET
1456 (XEXP (DECL_RTL (parms), 0)));
1457 PUT_SDB_SCL (C_AUTO);
1458 PUT_SDB_TYPE (plain_type (TREE_TYPE (parms)));
1465 /* Describe the beginning of an internal block within a function.
1466 Also output descriptions of variables defined in this block.
1468 N is the number of the block, by order of beginning, counting from 1,
1469 and not counting the outermost (function top-level) block.
1470 The blocks match the BLOCKs in DECL_INITIAL (current_function_decl),
1471 if the count starts at 0 for the outermost one. */
1474 sdbout_begin_block (file, line, n)
1475 FILE *file ATTRIBUTE_UNUSED;
1479 tree decl = current_function_decl;
1480 MAKE_LINE_SAFE (line);
1482 /* The SCO compiler does not emit a separate block for the function level
1483 scope, so we avoid it here also. However, mips ECOFF compilers do emit
1484 a separate block, so we retain it when MIPS_DEBUGGING_INFO is defined. */
1485 #ifndef MIPS_DEBUGGING_INFO
1488 PUT_SDB_BLOCK_START (line - sdb_begin_function_line);
1492 /* Include the outermost BLOCK's variables in block 1. */
1493 do_block = BLOCK_NUMBER (DECL_INITIAL (decl));
1494 sdbout_block (DECL_INITIAL (decl));
1496 /* If -g1, suppress all the internal symbols of functions
1497 except for arguments. */
1498 if (debug_info_level != DINFO_LEVEL_TERSE)
1501 sdbout_block (DECL_INITIAL (decl));
1504 #ifdef SDB_ALLOW_FORWARD_REFERENCES
1505 sdbout_dequeue_anonymous_types ();
1509 /* Describe the end line-number of an internal block within a function. */
1512 sdbout_end_block (file, line, n)
1513 FILE *file ATTRIBUTE_UNUSED;
1515 unsigned int n ATTRIBUTE_UNUSED;
1517 MAKE_LINE_SAFE (line);
1519 /* The SCO compiler does not emit a separate block for the function level
1520 scope, so we avoid it here also. However, mips ECOFF compilers do emit
1521 a separate block, so we retain it when MIPS_DEBUGGING_INFO is defined. */
1522 #ifndef MIPS_DEBUGGING_INFO
1525 PUT_SDB_BLOCK_END (line - sdb_begin_function_line);
1528 /* Output sdb info for the current function name.
1529 Called from assemble_start_function. */
1532 sdbout_mark_begin_function ()
1534 sdbout_symbol (current_function_decl, 0);
1537 /* Called at beginning of function body (after prologue).
1538 Record the function's starting line number, so we can output
1539 relative line numbers for the other lines.
1540 Describe beginning of outermost block.
1541 Also describe the parameter list. */
1544 sdbout_begin_function (line)
1547 sdb_begin_function_line = line - 1;
1548 PUT_SDB_FUNCTION_START (line);
1549 sdbout_parms (DECL_ARGUMENTS (current_function_decl));
1550 sdbout_reg_parms (DECL_ARGUMENTS (current_function_decl));
1553 /* Called at end of function (before epilogue).
1554 Describe end of outermost block. */
1557 sdbout_end_function (line)
1560 #ifdef SDB_ALLOW_FORWARD_REFERENCES
1561 sdbout_dequeue_anonymous_types ();
1564 MAKE_LINE_SAFE (line);
1565 PUT_SDB_FUNCTION_END (line - sdb_begin_function_line);
1567 /* Indicate we are between functions, for line-number output. */
1568 sdb_begin_function_line = -1;
1571 /* Output sdb info for the absolute end of a function.
1572 Called after the epilogue is output. */
1575 sdbout_end_epilogue ()
1577 PUT_SDB_EPILOGUE_END
1578 (IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (current_function_decl)));
1581 /* Output sdb info for the given label. Called only if LABEL_NAME (insn)
1588 PUT_SDB_DEF (LABEL_NAME (insn));
1590 PUT_SDB_SCL (C_LABEL);
1591 PUT_SDB_TYPE (T_NULL);
1595 /* Change to reading from a new source file. */
1598 sdbout_start_source_file (line, filename)
1599 unsigned int line ATTRIBUTE_UNUSED;
1600 const char *filename ATTRIBUTE_UNUSED;
1602 #ifdef MIPS_DEBUGGING_INFO
1603 struct sdb_file *n = (struct sdb_file *) xmalloc (sizeof *n);
1605 n->next = current_file;
1608 PUT_SDB_SRC_FILE (filename);
1612 /* Revert to reading a previous source file. */
1615 sdbout_end_source_file (line)
1616 unsigned int line ATTRIBUTE_UNUSED;
1618 #ifdef MIPS_DEBUGGING_INFO
1619 struct sdb_file *next;
1621 next = current_file->next;
1622 free (current_file);
1623 current_file = next;
1624 PUT_SDB_SRC_FILE (current_file->name);
1628 /* Set up for SDB output at the start of compilation. */
1631 sdbout_init (asm_file, input_file_name)
1632 FILE *asm_file ATTRIBUTE_UNUSED;
1633 const char *input_file_name ATTRIBUTE_UNUSED;
1635 #ifdef MIPS_DEBUGGING_INFO
1636 current_file = (struct sdb_file *) xmalloc (sizeof *current_file);
1637 current_file->next = NULL;
1638 current_file->name = input_file_name;
1641 #ifdef RMS_QUICK_HACK_1
1643 for (t = getdecls (); t; t = TREE_CHAIN (t))
1644 if (DECL_NAME (t) && IDENTIFIER_POINTER (DECL_NAME (t)) != 0
1645 && !strcmp (IDENTIFIER_POINTER (DECL_NAME (t)), "__vtbl_ptr_type"))
1646 sdbout_symbol (t, 0);
1649 #ifdef SDB_ALLOW_FORWARD_REFERENCES
1650 ggc_add_tree_root (&anonymous_types, 1);
1654 #endif /* SDB_DEBUGGING_INFO */