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 ((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 ((unsigned, unsigned));
99 static void sdbout_end_block PARAMS ((unsigned, unsigned));
100 static void sdbout_source_line PARAMS ((const char *, rtx));
101 static void sdbout_end_epilogue PARAMS ((void));
102 static void sdbout_end_function PARAMS ((unsigned int));
103 static char *gen_fake_label PARAMS ((void));
104 static int plain_type PARAMS ((tree));
105 static int template_name_p PARAMS ((tree));
106 static void sdbout_record_type_name PARAMS ((tree));
107 static int plain_type_1 PARAMS ((tree, int));
108 static void sdbout_block PARAMS ((tree));
109 static void sdbout_syms PARAMS ((tree));
110 #ifdef SDB_ALLOW_FORWARD_REFERENCES
111 static void sdbout_queue_anonymous_type PARAMS ((tree));
112 static void sdbout_dequeue_anonymous_types PARAMS ((void));
114 static void sdbout_type PARAMS ((tree));
115 static void sdbout_field_types PARAMS ((tree));
116 static void sdbout_one_type PARAMS ((tree));
117 static void sdbout_parms PARAMS ((tree));
118 static void sdbout_reg_parms PARAMS ((tree));
120 /* Random macros describing parts of SDB data. */
122 /* Put something here if lines get too long */
125 /* Default value of delimiter is ";". */
127 #define SDB_DELIM ";"
130 /* Maximum number of dimensions the assembler will allow. */
132 #define SDB_MAX_DIM 4
136 #define PUT_SDB_SCL(a) fprintf(asm_out_file, "\t.scl\t%d%s", (a), SDB_DELIM)
139 #ifndef PUT_SDB_INT_VAL
140 #define PUT_SDB_INT_VAL(a) \
142 fputs ("\t.val\t", asm_out_file); \
143 fprintf (asm_out_file, HOST_WIDE_INT_PRINT_DEC, (HOST_WIDE_INT)(a)); \
144 fprintf (asm_out_file, "%s", SDB_DELIM); \
150 #define PUT_SDB_VAL(a) \
151 ( fputs ("\t.val\t", asm_out_file), \
152 output_addr_const (asm_out_file, (a)), \
153 fprintf (asm_out_file, SDB_DELIM))
157 #define PUT_SDB_DEF(a) \
158 do { fprintf (asm_out_file, "\t.def\t"); \
159 assemble_name (asm_out_file, a); \
160 fprintf (asm_out_file, SDB_DELIM); } while (0)
163 #ifndef PUT_SDB_PLAIN_DEF
164 #define PUT_SDB_PLAIN_DEF(a) fprintf(asm_out_file,"\t.def\t.%s%s",a, SDB_DELIM)
167 #ifndef PUT_SDB_ENDEF
168 #define PUT_SDB_ENDEF fputs("\t.endef\n", asm_out_file)
172 #define PUT_SDB_TYPE(a) fprintf(asm_out_file, "\t.type\t0%o%s", a, SDB_DELIM)
176 #define PUT_SDB_SIZE(a) \
178 fputs ("\t.size\t", asm_out_file); \
179 fprintf (asm_out_file, HOST_WIDE_INT_PRINT_DEC, (HOST_WIDE_INT)(a)); \
180 fprintf (asm_out_file, "%s", SDB_DELIM); \
184 #ifndef PUT_SDB_START_DIM
185 #define PUT_SDB_START_DIM fprintf(asm_out_file, "\t.dim\t")
188 #ifndef PUT_SDB_NEXT_DIM
189 #define PUT_SDB_NEXT_DIM(a) fprintf(asm_out_file, "%d,", a)
192 #ifndef PUT_SDB_LAST_DIM
193 #define PUT_SDB_LAST_DIM(a) fprintf(asm_out_file, "%d%s", a, SDB_DELIM)
197 #define PUT_SDB_TAG(a) \
198 do { fprintf (asm_out_file, "\t.tag\t"); \
199 assemble_name (asm_out_file, a); \
200 fprintf (asm_out_file, SDB_DELIM); } while (0)
203 #ifndef PUT_SDB_BLOCK_START
204 #define PUT_SDB_BLOCK_START(LINE) \
205 fprintf (asm_out_file, \
206 "\t.def\t.bb%s\t.val\t.%s\t.scl\t100%s\t.line\t%d%s\t.endef\n", \
207 SDB_DELIM, SDB_DELIM, SDB_DELIM, (LINE), SDB_DELIM)
210 #ifndef PUT_SDB_BLOCK_END
211 #define PUT_SDB_BLOCK_END(LINE) \
212 fprintf (asm_out_file, \
213 "\t.def\t.eb%s\t.val\t.%s\t.scl\t100%s\t.line\t%d%s\t.endef\n", \
214 SDB_DELIM, SDB_DELIM, SDB_DELIM, (LINE), SDB_DELIM)
217 #ifndef PUT_SDB_FUNCTION_START
218 #define PUT_SDB_FUNCTION_START(LINE) \
219 fprintf (asm_out_file, \
220 "\t.def\t.bf%s\t.val\t.%s\t.scl\t101%s\t.line\t%d%s\t.endef\n", \
221 SDB_DELIM, SDB_DELIM, SDB_DELIM, (LINE), SDB_DELIM)
224 #ifndef PUT_SDB_FUNCTION_END
225 #define PUT_SDB_FUNCTION_END(LINE) \
226 fprintf (asm_out_file, \
227 "\t.def\t.ef%s\t.val\t.%s\t.scl\t101%s\t.line\t%d%s\t.endef\n", \
228 SDB_DELIM, SDB_DELIM, SDB_DELIM, (LINE), SDB_DELIM)
231 #ifndef SDB_GENERATE_FAKE
232 #define SDB_GENERATE_FAKE(BUFFER, NUMBER) \
233 sprintf ((BUFFER), ".%dfake", (NUMBER));
236 /* Return the sdb tag identifier string for TYPE
237 if TYPE has already been defined; otherwise return a null pointer. */
239 #define KNOWN_TYPE_TAG(type) TYPE_SYMTAB_POINTER (type)
241 /* Set the sdb tag identifier string for TYPE to NAME. */
243 #define SET_KNOWN_TYPE_TAG(TYPE, NAME) \
244 TYPE_SYMTAB_POINTER (TYPE) = (NAME)
246 /* Return the name (a string) of the struct, union or enum tag
247 described by the TREE_LIST node LINK. This is 0 for an anonymous one. */
249 #define TAG_NAME(link) \
250 (((link) && TREE_PURPOSE ((link)) \
251 && IDENTIFIER_POINTER (TREE_PURPOSE ((link)))) \
252 ? IDENTIFIER_POINTER (TREE_PURPOSE ((link))) : (char *) 0)
254 /* Ensure we don't output a negative line number. */
255 #define MAKE_LINE_SAFE(line) \
256 if (line <= sdb_begin_function_line) line = sdb_begin_function_line + 1
258 /* Perform linker optimization of merging header file definitions together
259 for targets with MIPS_DEBUGGING_INFO defined. This won't work without a
260 post 960826 version of GAS. Nothing breaks with earlier versions of GAS,
261 the optimization just won't be done. The native assembler already has the
262 necessary support. */
264 #ifdef MIPS_DEBUGGING_INFO
266 #ifndef PUT_SDB_SRC_FILE
267 #define PUT_SDB_SRC_FILE(FILENAME) \
268 output_file_directive (asm_out_file, (FILENAME))
271 /* ECOFF linkers have an optimization that does the same kind of thing as
272 N_BINCL/E_INCL in stabs: eliminate duplicate debug information in the
273 executable. To achieve this, GCC must output a .file for each file
276 /* This is a stack of input files. */
280 struct sdb_file *next;
284 /* This is the top of the stack. */
286 static struct sdb_file *current_file;
288 #endif /* MIPS_DEBUGGING_INFO */
290 /* The debug hooks structure. */
291 struct gcc_debug_hooks sdb_debug_hooks =
294 debug_nothing_charstar,
295 debug_nothing_int_charstar,
296 debug_nothing_int_charstar,
297 sdbout_start_source_file,
298 sdbout_end_source_file,
308 /* return the tag identifier for type
312 tag_of_ru_type (type,link)
315 if (TYPE_SYMTAB_ADDRESS (type))
316 return TYPE_SYMTAB_ADDRESS (type);
317 if (link && TREE_PURPOSE (link)
318 && IDENTIFIER_POINTER (TREE_PURPOSE (link)))
319 TYPE_SYMTAB_ADDRESS (type) = IDENTIFIER_POINTER (TREE_PURPOSE (link));
321 return (char *) TYPE_SYMTAB_ADDRESS (type);
325 /* Return a unique string to name an anonymous type. */
332 SDB_GENERATE_FAKE (label, unnamed_struct_number);
333 unnamed_struct_number++;
334 labelstr = (char *) permalloc (strlen (label) + 1);
335 strcpy (labelstr, label);
339 /* Return the number which describes TYPE for SDB.
340 For pointers, etc., this function is recursive.
341 Each record, union or enumeral type must already have had a
342 tag number output. */
344 /* The number is given by d6d5d4d3d2d1bbbb
345 where bbbb is 4 bit basic type, and di indicate one of notype,ptr,fn,array.
346 Thus, char *foo () has bbbb=T_CHAR
349 N_BTMASK= 017 1111 basic type field.
350 N_TSHIFT= 2 derived type shift
351 N_BTSHFT= 4 Basic type shift */
353 /* Produce the number that describes a pointer, function or array type.
354 PREV is the number describing the target, value or element type.
355 DT_type describes how to transform that type. */
356 #define PUSH_DERIVED_LEVEL(DT_type,PREV) \
357 ((((PREV) & ~(int)N_BTMASK) << (int)N_TSHIFT) \
358 | ((int)DT_type << (int)N_BTSHFT) \
359 | ((PREV) & (int)N_BTMASK))
361 /* Number of elements used in sdb_dims. */
362 static int sdb_n_dims = 0;
364 /* Table of array dimensions of current type. */
365 static int sdb_dims[SDB_MAX_DIM];
367 /* Size of outermost array currently being processed. */
368 static int sdb_type_size = -1;
374 int val = plain_type_1 (type, 0);
376 /* If we have already saved up some array dimensions, print them now. */
381 for (i = sdb_n_dims - 1; i > 0; i--)
382 PUT_SDB_NEXT_DIM (sdb_dims[i]);
383 PUT_SDB_LAST_DIM (sdb_dims[0]);
386 sdb_type_size = int_size_in_bytes (type);
387 /* Don't kill sdb if type is not laid out or has variable size. */
388 if (sdb_type_size < 0)
391 /* If we have computed the size of an array containing this type,
393 if (sdb_type_size >= 0)
395 PUT_SDB_SIZE (sdb_type_size);
402 template_name_p (name)
405 register const char *ptr = IDENTIFIER_POINTER (name);
406 while (*ptr && *ptr != '<')
413 sdbout_record_type_name (type)
416 const char *name = 0;
419 if (KNOWN_TYPE_TAG (type))
422 if (TYPE_NAME (type) != 0)
425 /* Find the IDENTIFIER_NODE for the type name. */
426 if (TREE_CODE (TYPE_NAME (type)) == IDENTIFIER_NODE)
427 t = TYPE_NAME (type);
428 else if (TREE_CODE (TYPE_NAME (type)) == TYPE_DECL)
430 t = DECL_NAME (TYPE_NAME (type));
431 /* The DECL_NAME for templates includes "<>", which breaks
432 most assemblers. Use its assembler name instead, which
433 has been mangled into being safe. */
434 if (t && template_name_p (t))
435 t = DECL_ASSEMBLER_NAME (TYPE_NAME (type));
438 /* Now get the name as a string, or invent one. */
440 name = IDENTIFIER_POINTER (t);
443 no_name = (name == 0 || *name == 0);
445 name = gen_fake_label ();
447 SET_KNOWN_TYPE_TAG (type, name);
448 #ifdef SDB_ALLOW_FORWARD_REFERENCES
450 sdbout_queue_anonymous_type (type);
454 /* Return the .type value for type TYPE.
456 LEVEL indicates how many levels deep we have recursed into the type.
457 The SDB debug format can only represent 6 derived levels of types.
458 After that, we must output inaccurate debug info. We deliberately
459 stop before the 7th level, so that ADA recursive types will not give an
463 plain_type_1 (type, level)
468 type = void_type_node;
469 else if (type == error_mark_node)
470 type = integer_type_node;
472 type = TYPE_MAIN_VARIANT (type);
474 switch (TREE_CODE (type))
481 int size = int_size_in_bytes (type) * BITS_PER_UNIT;
483 /* Carefully distinguish all the standard types of C,
484 without messing up if the language is not C.
485 Note that we check only for the names that contain spaces;
486 other names might occur by coincidence in other languages. */
487 if (TYPE_NAME (type) != 0
488 && TREE_CODE (TYPE_NAME (type)) == TYPE_DECL
489 && DECL_NAME (TYPE_NAME (type)) != 0
490 && TREE_CODE (DECL_NAME (TYPE_NAME (type))) == IDENTIFIER_NODE)
493 = IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (type)));
495 if (!strcmp (name, "char"))
497 if (!strcmp (name, "unsigned char"))
499 if (!strcmp (name, "signed char"))
501 if (!strcmp (name, "int"))
503 if (!strcmp (name, "unsigned int"))
505 if (!strcmp (name, "short int"))
507 if (!strcmp (name, "short unsigned int"))
509 if (!strcmp (name, "long int"))
511 if (!strcmp (name, "long unsigned int"))
515 if (size == INT_TYPE_SIZE)
516 return (TREE_UNSIGNED (type) ? T_UINT : T_INT);
517 if (size == CHAR_TYPE_SIZE)
518 return (TREE_UNSIGNED (type) ? T_UCHAR : T_CHAR);
519 if (size == SHORT_TYPE_SIZE)
520 return (TREE_UNSIGNED (type) ? T_USHORT : T_SHORT);
521 if (size == LONG_TYPE_SIZE)
522 return (TREE_UNSIGNED (type) ? T_ULONG : T_LONG);
523 if (size == LONG_LONG_TYPE_SIZE) /* better than nothing */
524 return (TREE_UNSIGNED (type) ? T_ULONG : T_LONG);
530 int precision = TYPE_PRECISION (type);
531 if (precision == FLOAT_TYPE_SIZE)
533 if (precision == DOUBLE_TYPE_SIZE)
535 #ifdef EXTENDED_SDB_BASIC_TYPES
536 if (precision == LONG_DOUBLE_TYPE_SIZE)
539 if (precision == LONG_DOUBLE_TYPE_SIZE)
540 return T_DOUBLE; /* better than nothing */
551 m = plain_type_1 (TREE_TYPE (type), level+1);
552 if (sdb_n_dims < SDB_MAX_DIM)
553 sdb_dims[sdb_n_dims++]
554 = (TYPE_DOMAIN (type)
555 && TYPE_MIN_VALUE (TYPE_DOMAIN (type)) != 0
556 && TYPE_MAX_VALUE (TYPE_DOMAIN (type)) != 0
557 && host_integerp (TYPE_MAX_VALUE (TYPE_DOMAIN (type)), 0)
558 && host_integerp (TYPE_MIN_VALUE (TYPE_DOMAIN (type)), 0)
559 ? (tree_low_cst (TYPE_MAX_VALUE (TYPE_DOMAIN (type)), 0)
560 - tree_low_cst (TYPE_MIN_VALUE (TYPE_DOMAIN (type)), 0) + 1)
563 return PUSH_DERIVED_LEVEL (DT_ARY, m);
568 case QUAL_UNION_TYPE:
572 #ifdef SDB_ALLOW_FORWARD_REFERENCES
573 sdbout_record_type_name (type);
575 #ifndef SDB_ALLOW_UNKNOWN_REFERENCES
576 if ((TREE_ASM_WRITTEN (type) && KNOWN_TYPE_TAG (type) != 0)
577 #ifdef SDB_ALLOW_FORWARD_REFERENCES
578 || TYPE_MODE (type) != VOIDmode
583 /* Output the referenced structure tag name
584 only if the .def has already been finished.
585 At least on 386, the Unix assembler
586 cannot handle forward references to tags. */
587 /* But the 88100, it requires them, sigh... */
588 /* And the MIPS requires unknown refs as well... */
589 tag = KNOWN_TYPE_TAG (type);
591 /* These 3 lines used to follow the close brace.
592 However, a size of 0 without a tag implies a tag of 0,
593 so if we don't know a tag, we can't mention the size. */
594 sdb_type_size = int_size_in_bytes (type);
595 if (sdb_type_size < 0)
598 return ((TREE_CODE (type) == RECORD_TYPE) ? T_STRUCT
599 : (TREE_CODE (type) == UNION_TYPE) ? T_UNION
600 : (TREE_CODE (type) == QUAL_UNION_TYPE) ? T_UNION
610 m = plain_type_1 (TREE_TYPE (type), level+1);
611 return PUSH_DERIVED_LEVEL (DT_PTR, m);
620 m = plain_type_1 (TREE_TYPE (type), level+1);
621 return PUSH_DERIVED_LEVEL (DT_FCN, m);
628 /* Output the symbols defined in block number DO_BLOCK.
630 This function works by walking the tree structure of blocks,
631 counting blocks until it finds the desired block. */
633 static int do_block = 0;
641 /* Ignore blocks never expanded or otherwise marked as real. */
642 if (TREE_USED (block))
644 /* When we reach the specified block, output its symbols. */
645 if (BLOCK_NUMBER (block) == do_block)
646 sdbout_syms (BLOCK_VARS (block));
648 /* If we are past the specified block, stop the scan. */
649 if (BLOCK_NUMBER (block) > do_block)
652 /* Scan the blocks within this block. */
653 sdbout_block (BLOCK_SUBBLOCKS (block));
656 block = BLOCK_CHAIN (block);
660 /* Call sdbout_symbol on each decl in the chain SYMS. */
668 if (TREE_CODE (syms) != LABEL_DECL)
669 sdbout_symbol (syms, 1);
670 syms = TREE_CHAIN (syms);
674 /* Output SDB information for a symbol described by DECL.
675 LOCAL is nonzero if the symbol is not file-scope. */
678 sdbout_symbol (decl, local)
682 tree type = TREE_TYPE (decl);
683 tree context = NULL_TREE;
688 sdbout_one_type (type);
690 #if 0 /* This loses when functions are marked to be ignored,
691 which happens in the C++ front end. */
692 if (DECL_IGNORED_P (decl))
696 switch (TREE_CODE (decl))
699 /* Enum values are defined by defining the enum type. */
703 /* Don't mention a nested function under its parent. */
704 context = decl_function_context (decl);
705 if (context == current_function_decl)
707 /* Check DECL_INITIAL to distinguish declarations from definitions.
708 Don't output debug info here for declarations; they will have
709 a DECL_INITIAL value of 0. */
710 if (! DECL_INITIAL (decl))
712 if (GET_CODE (DECL_RTL (decl)) != MEM
713 || GET_CODE (XEXP (DECL_RTL (decl), 0)) != SYMBOL_REF)
715 PUT_SDB_DEF (IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl)));
716 PUT_SDB_VAL (XEXP (DECL_RTL (decl), 0));
717 PUT_SDB_SCL (TREE_PUBLIC (decl) ? C_EXT : C_STAT);
721 /* Done with tagged types. */
722 if (DECL_NAME (decl) == 0)
724 if (DECL_IGNORED_P (decl))
727 /* Output typedef name. */
728 if (template_name_p (DECL_NAME (decl)))
729 PUT_SDB_DEF (IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl)));
731 PUT_SDB_DEF (IDENTIFIER_POINTER (DECL_NAME (decl)));
732 PUT_SDB_SCL (C_TPDEF);
736 /* Parm decls go in their own separate chains
737 and are output by sdbout_reg_parms and sdbout_parms. */
741 /* Don't mention a variable that is external.
742 Let the file that defines it describe it. */
743 if (DECL_EXTERNAL (decl))
746 /* Ignore __FUNCTION__, etc. */
747 if (DECL_IGNORED_P (decl))
750 /* If there was an error in the declaration, don't dump core
751 if there is no RTL associated with the variable doesn't
753 if (!DECL_RTL_SET_P (decl))
757 eliminate_regs (DECL_RTL (decl), 0, NULL_RTX));
758 #ifdef LEAF_REG_REMAP
759 if (current_function_uses_only_leaf_regs)
760 leaf_renumber_regs_insn (DECL_RTL (decl));
762 value = DECL_RTL (decl);
764 /* Don't mention a variable at all
765 if it was completely optimized into nothingness.
767 If DECL was from an inline function, then its rtl
768 is not identically the rtl that was used in this
769 particular compilation. */
770 if (GET_CODE (value) == REG)
772 regno = REGNO (DECL_RTL (decl));
773 if (regno >= FIRST_PSEUDO_REGISTER)
776 else if (GET_CODE (value) == SUBREG)
780 while (GET_CODE (value) == SUBREG)
781 value = SUBREG_REG (value);
782 if (GET_CODE (value) == REG)
784 if (REGNO (value) >= FIRST_PSEUDO_REGISTER)
787 regno = REGNO (alter_subreg (DECL_RTL (decl)));
788 value = DECL_RTL (decl);
790 /* Don't output anything if an auto variable
791 gets RTL that is static.
792 GAS version 2.2 can't handle such output. */
793 else if (GET_CODE (value) == MEM && CONSTANT_P (XEXP (value, 0))
794 && ! TREE_STATIC (decl))
797 /* Emit any structure, union, or enum type that has not been output.
798 This occurs for tag-less structs (et al) used to declare variables
800 if (TREE_CODE (type) == ENUMERAL_TYPE
801 || TREE_CODE (type) == RECORD_TYPE
802 || TREE_CODE (type) == UNION_TYPE
803 || TREE_CODE (type) == QUAL_UNION_TYPE)
805 if (COMPLETE_TYPE_P (type) /* not a forward reference */
806 && KNOWN_TYPE_TAG (type) == 0) /* not yet declared */
807 sdbout_one_type (type);
810 /* Defer SDB information for top-level initialized variables! */
812 && GET_CODE (value) == MEM
813 && DECL_INITIAL (decl))
816 /* C++ in 2.3 makes nameless symbols. That will be fixed later.
817 For now, avoid crashing. */
818 if (DECL_NAME (decl) == NULL_TREE)
821 /* Record the name for, starting a symtab entry. */
823 name = IDENTIFIER_POINTER (DECL_NAME (decl));
825 name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl));
827 if (GET_CODE (value) == MEM
828 && GET_CODE (XEXP (value, 0)) == SYMBOL_REF)
831 if (TREE_PUBLIC (decl))
833 PUT_SDB_VAL (XEXP (value, 0));
838 PUT_SDB_VAL (XEXP (value, 0));
839 PUT_SDB_SCL (C_STAT);
845 PUT_SDB_INT_VAL (DBX_REGISTER_NUMBER (regno));
848 else if (GET_CODE (value) == MEM
849 && (GET_CODE (XEXP (value, 0)) == MEM
850 || (GET_CODE (XEXP (value, 0)) == REG
851 && REGNO (XEXP (value, 0)) != HARD_FRAME_POINTER_REGNUM
852 && REGNO (XEXP (value, 0)) != STACK_POINTER_REGNUM)))
853 /* If the value is indirect by memory or by a register
854 that isn't the frame pointer
855 then it means the object is variable-sized and address through
856 that register or stack slot. COFF has no way to represent this
857 so all we can do is output the variable as a pointer. */
860 if (GET_CODE (XEXP (value, 0)) == REG)
862 PUT_SDB_INT_VAL (DBX_REGISTER_NUMBER (REGNO (XEXP (value, 0))));
867 /* DECL_RTL looks like (MEM (MEM (PLUS (REG...)
869 We want the value of that CONST_INT. */
870 /* Encore compiler hates a newline in a macro arg, it seems. */
871 PUT_SDB_INT_VAL (DEBUGGER_AUTO_OFFSET
872 (XEXP (XEXP (value, 0), 0)));
873 PUT_SDB_SCL (C_AUTO);
876 /* Effectively do build_pointer_type, but don't cache this type,
877 since it might be temporary whereas the type it points to
878 might have been saved for inlining. */
879 /* Don't use REFERENCE_TYPE because dbx can't handle that. */
880 type = make_node (POINTER_TYPE);
881 TREE_TYPE (type) = TREE_TYPE (decl);
883 else if (GET_CODE (value) == MEM
884 && ((GET_CODE (XEXP (value, 0)) == PLUS
885 && GET_CODE (XEXP (XEXP (value, 0), 0)) == REG
886 && GET_CODE (XEXP (XEXP (value, 0), 1)) == CONST_INT)
887 /* This is for variables which are at offset zero from
888 the frame pointer. This happens on the Alpha.
889 Non-frame pointer registers are excluded above. */
890 || (GET_CODE (XEXP (value, 0)) == REG)))
892 /* DECL_RTL looks like (MEM (PLUS (REG...) (CONST_INT...)))
893 or (MEM (REG...)). We want the value of that CONST_INT
896 PUT_SDB_INT_VAL (DEBUGGER_AUTO_OFFSET (XEXP (value, 0)));
897 PUT_SDB_SCL (C_AUTO);
899 else if (GET_CODE (value) == MEM && GET_CODE (XEXP (value, 0)) == CONST)
901 /* Handle an obscure case which can arise when optimizing and
902 when there are few available registers. (This is *always*
903 the case for i386/i486 targets). The DECL_RTL looks like
904 (MEM (CONST ...)) even though this variable is a local `auto'
905 or a local `register' variable. In effect, what has happened
906 is that the reload pass has seen that all assignments and
907 references for one such a local variable can be replaced by
908 equivalent assignments and references to some static storage
909 variable, thereby avoiding the need for a register. In such
910 cases we're forced to lie to debuggers and tell them that
911 this variable was itself `static'. */
913 PUT_SDB_VAL (XEXP (XEXP (value, 0), 0));
914 PUT_SDB_SCL (C_STAT);
918 /* It is something we don't know how to represent for SDB. */
926 PUT_SDB_TYPE (plain_type (type));
930 /* Output SDB information for a top-level initialized variable
931 that has been delayed. */
934 sdbout_toplevel_data (decl)
937 tree type = TREE_TYPE (decl);
939 if (DECL_IGNORED_P (decl))
942 if (! (TREE_CODE (decl) == VAR_DECL
943 && GET_CODE (DECL_RTL (decl)) == MEM
944 && DECL_INITIAL (decl)))
947 PUT_SDB_DEF (IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl)));
948 PUT_SDB_VAL (XEXP (DECL_RTL (decl), 0));
949 if (TREE_PUBLIC (decl))
955 PUT_SDB_SCL (C_STAT);
957 PUT_SDB_TYPE (plain_type (type));
961 #ifdef SDB_ALLOW_FORWARD_REFERENCES
963 /* Machinery to record and output anonymous types. */
965 static tree anonymous_types;
968 sdbout_queue_anonymous_type (type)
971 anonymous_types = tree_cons (NULL_TREE, type, anonymous_types);
975 sdbout_dequeue_anonymous_types ()
977 register tree types, link;
979 while (anonymous_types)
981 types = nreverse (anonymous_types);
982 anonymous_types = NULL_TREE;
984 for (link = types; link; link = TREE_CHAIN (link))
986 register tree type = TREE_VALUE (link);
988 if (type && ! TREE_ASM_WRITTEN (type))
989 sdbout_one_type (type);
996 /* Given a chain of ..._TYPE nodes, all of which have names,
997 output definitions of those names, as typedefs. */
1000 sdbout_types (types)
1001 register tree types;
1005 for (link = types; link; link = TREE_CHAIN (link))
1006 sdbout_one_type (link);
1008 #ifdef SDB_ALLOW_FORWARD_REFERENCES
1009 sdbout_dequeue_anonymous_types ();
1017 if (type == error_mark_node)
1018 type = integer_type_node;
1019 PUT_SDB_TYPE (plain_type (type));
1022 /* Output types of the fields of type TYPE, if they are structs.
1024 Formerly did not chase through pointer types, since that could be circular.
1025 They must come before TYPE, since forward refs are not allowed.
1026 Now james@bigtex.cactus.org says to try them. */
1029 sdbout_field_types (type)
1034 for (tail = TYPE_FIELDS (type); tail; tail = TREE_CHAIN (tail))
1035 /* This condition should match the one for emitting the actual
1037 if (TREE_CODE (tail) == FIELD_DECL
1040 && host_integerp (DECL_SIZE (tail), 1)
1041 && host_integerp (bit_position (tail), 0))
1043 if (POINTER_TYPE_P (TREE_TYPE (tail)))
1044 sdbout_one_type (TREE_TYPE (TREE_TYPE (tail)));
1046 sdbout_one_type (TREE_TYPE (tail));
1050 /* Use this to put out the top level defined record and union types
1051 for later reference. If this is a struct with a name, then put that
1052 name out. Other unnamed structs will have .xxfake labels generated so
1053 that they may be referred to later.
1054 The label will be stored in the KNOWN_TYPE_TAG slot of a type.
1055 It may NOT be called recursively. */
1058 sdbout_one_type (type)
1061 if (current_function_decl != NULL_TREE
1062 && DECL_SECTION_NAME (current_function_decl) != NULL_TREE)
1063 ; /* Don't change section amid function. */
1067 switch (TREE_CODE (type))
1071 case QUAL_UNION_TYPE:
1073 type = TYPE_MAIN_VARIANT (type);
1074 /* Don't output a type twice. */
1075 if (TREE_ASM_WRITTEN (type))
1076 /* James said test TREE_ASM_BEING_WRITTEN here. */
1079 /* Output nothing if type is not yet defined. */
1080 if (!COMPLETE_TYPE_P (type))
1083 TREE_ASM_WRITTEN (type) = 1;
1085 /* This is reputed to cause trouble with the following case,
1086 but perhaps checking TYPE_SIZE above will fix it. */
1088 /* Here is a test case:
1094 typedef struct intermediate {
1098 typedef struct badstr {
1103 TREE_ASM_BEING_WRITTEN (type) = 1;
1105 /* This change, which ought to make better output,
1106 used to make the COFF assembler unhappy.
1107 Changes involving KNOWN_TYPE_TAG may fix the problem. */
1108 /* Before really doing anything, output types we want to refer to. */
1109 /* Note that in version 1 the following two lines
1110 are not used if forward references are in use. */
1111 if (TREE_CODE (type) != ENUMERAL_TYPE)
1112 sdbout_field_types (type);
1114 TREE_ASM_WRITTEN (type) = 1;
1118 /* Output a structure type. */
1120 int size = int_size_in_bytes (type);
1123 int i, n_baseclasses = 0;
1125 /* Record the type tag, but not in its permanent place just yet. */
1126 sdbout_record_type_name (type);
1128 PUT_SDB_DEF (KNOWN_TYPE_TAG (type));
1130 switch (TREE_CODE (type))
1133 case QUAL_UNION_TYPE:
1134 PUT_SDB_SCL (C_UNTAG);
1135 PUT_SDB_TYPE (T_UNION);
1140 PUT_SDB_SCL (C_STRTAG);
1141 PUT_SDB_TYPE (T_STRUCT);
1146 PUT_SDB_SCL (C_ENTAG);
1147 PUT_SDB_TYPE (T_ENUM);
1155 PUT_SDB_SIZE (size);
1158 /* Print out the base class information with fields
1159 named after the types they hold. */
1160 /* This is only relevent to aggregate types. TYPE_BINFO is used
1161 for other purposes in an ENUMERAL_TYPE, so we must exclude that
1163 if (TREE_CODE (type) != ENUMERAL_TYPE)
1165 if (TYPE_BINFO (type)
1166 && TYPE_BINFO_BASETYPES (type))
1167 n_baseclasses = TREE_VEC_LENGTH (TYPE_BINFO_BASETYPES (type));
1168 for (i = 0; i < n_baseclasses; i++)
1170 tree child = TREE_VEC_ELT (BINFO_BASETYPES (TYPE_BINFO (type)),
1172 tree child_type = BINFO_TYPE (child);
1173 tree child_type_name;
1174 if (TYPE_NAME (child_type) == 0)
1176 if (TREE_CODE (TYPE_NAME (child_type)) == IDENTIFIER_NODE)
1177 child_type_name = TYPE_NAME (child_type);
1178 else if (TREE_CODE (TYPE_NAME (child_type)) == TYPE_DECL)
1180 child_type_name = DECL_NAME (TYPE_NAME (child_type));
1181 if (child_type_name && template_name_p (child_type_name))
1183 = DECL_ASSEMBLER_NAME (TYPE_NAME (child_type));
1189 PUT_SDB_DEF (IDENTIFIER_POINTER (child_type_name));
1190 PUT_SDB_INT_VAL (tree_low_cst (BINFO_OFFSET (child), 0));
1191 PUT_SDB_SCL (member_scl);
1192 sdbout_type (BINFO_TYPE (child));
1197 /* output the individual fields */
1199 if (TREE_CODE (type) == ENUMERAL_TYPE)
1201 for (tem = TYPE_FIELDS (type); tem; tem = TREE_CHAIN (tem))
1202 if (host_integerp (TREE_VALUE (tem), 0))
1204 PUT_SDB_DEF (IDENTIFIER_POINTER (TREE_PURPOSE (tem)));
1205 PUT_SDB_INT_VAL (tree_low_cst (TREE_VALUE (tem), 0));
1206 PUT_SDB_SCL (C_MOE);
1207 PUT_SDB_TYPE (T_MOE);
1211 else /* record or union type */
1212 for (tem = TYPE_FIELDS (type); tem; tem = TREE_CHAIN (tem))
1213 /* Output the name, type, position (in bits), size (in bits)
1216 /* Omit here the nameless fields that are used to skip bits.
1217 Also omit fields with variable size or position.
1218 Also omit non FIELD_DECL nodes that GNU C++ may put here. */
1219 if (TREE_CODE (tem) == FIELD_DECL
1222 && host_integerp (DECL_SIZE (tem), 1)
1223 && host_integerp (bit_position (tem), 0))
1228 name = IDENTIFIER_POINTER (DECL_NAME (tem));
1230 if (DECL_BIT_FIELD_TYPE (tem))
1232 PUT_SDB_INT_VAL (int_bit_position (tem));
1233 PUT_SDB_SCL (C_FIELD);
1234 sdbout_type (DECL_BIT_FIELD_TYPE (tem));
1235 PUT_SDB_SIZE (tree_low_cst (DECL_SIZE (tem), 1));
1239 PUT_SDB_INT_VAL (int_bit_position (tem) / BITS_PER_UNIT);
1240 PUT_SDB_SCL (member_scl);
1241 sdbout_type (TREE_TYPE (tem));
1245 /* output end of a structure,union, or enumeral definition */
1247 PUT_SDB_PLAIN_DEF ("eos");
1248 PUT_SDB_INT_VAL (size);
1249 PUT_SDB_SCL (C_EOS);
1250 PUT_SDB_TAG (KNOWN_TYPE_TAG (type));
1251 PUT_SDB_SIZE (size);
1261 /* The following two functions output definitions of function parameters.
1262 Each parameter gets a definition locating it in the parameter list.
1263 Each parameter that is a register variable gets a second definition
1264 locating it in the register.
1266 Printing or argument lists in gdb uses the definitions that
1267 locate in the parameter list. But reference to the variable in
1268 expressions uses preferentially the definition as a register. */
1270 /* Output definitions, referring to storage in the parmlist,
1271 of all the parms in PARMS, which is a chain of PARM_DECL nodes. */
1274 sdbout_parms (parms)
1277 for (; parms; parms = TREE_CHAIN (parms))
1278 if (DECL_NAME (parms))
1280 int current_sym_value = 0;
1281 const char *name = IDENTIFIER_POINTER (DECL_NAME (parms));
1283 if (name == 0 || *name == 0)
1284 name = gen_fake_label ();
1286 /* Perform any necessary register eliminations on the parameter's rtl,
1287 so that the debugging output will be accurate. */
1288 DECL_INCOMING_RTL (parms)
1289 = eliminate_regs (DECL_INCOMING_RTL (parms), 0, NULL_RTX);
1290 SET_DECL_RTL (parms,
1291 eliminate_regs (DECL_RTL (parms), 0, NULL_RTX));
1293 if (PARM_PASSED_IN_MEMORY (parms))
1295 rtx addr = XEXP (DECL_INCOMING_RTL (parms), 0);
1298 /* ??? Here we assume that the parm address is indexed
1299 off the frame pointer or arg pointer.
1300 If that is not true, we produce meaningless results,
1301 but do not crash. */
1302 if (GET_CODE (addr) == PLUS
1303 && GET_CODE (XEXP (addr, 1)) == CONST_INT)
1304 current_sym_value = INTVAL (XEXP (addr, 1));
1306 current_sym_value = 0;
1308 if (GET_CODE (DECL_RTL (parms)) == REG
1309 && REGNO (DECL_RTL (parms)) < FIRST_PSEUDO_REGISTER)
1310 type = DECL_ARG_TYPE (parms);
1313 int original_sym_value = current_sym_value;
1315 /* This is the case where the parm is passed as an int or
1316 double and it is converted to a char, short or float
1317 and stored back in the parmlist. In this case, describe
1318 the parm with the variable's declared type, and adjust
1319 the address if the least significant bytes (which we are
1320 using) are not the first ones. */
1321 if (BYTES_BIG_ENDIAN
1322 && TREE_TYPE (parms) != DECL_ARG_TYPE (parms))
1323 current_sym_value +=
1324 (GET_MODE_SIZE (TYPE_MODE (DECL_ARG_TYPE (parms)))
1325 - GET_MODE_SIZE (GET_MODE (DECL_RTL (parms))));
1327 if (GET_CODE (DECL_RTL (parms)) == MEM
1328 && GET_CODE (XEXP (DECL_RTL (parms), 0)) == PLUS
1329 && (GET_CODE (XEXP (XEXP (DECL_RTL (parms), 0), 1))
1331 && (INTVAL (XEXP (XEXP (DECL_RTL (parms), 0), 1))
1332 == current_sym_value))
1333 type = TREE_TYPE (parms);
1336 current_sym_value = original_sym_value;
1337 type = DECL_ARG_TYPE (parms);
1342 PUT_SDB_INT_VAL (DEBUGGER_ARG_OFFSET (current_sym_value, addr));
1343 PUT_SDB_SCL (C_ARG);
1344 PUT_SDB_TYPE (plain_type (type));
1347 else if (GET_CODE (DECL_RTL (parms)) == REG)
1350 /* Parm passed in registers and lives in registers or nowhere. */
1352 /* If parm lives in a register, use that register;
1353 pretend the parm was passed there. It would be more consistent
1354 to describe the register where the parm was passed,
1355 but in practice that register usually holds something else. */
1356 if (REGNO (DECL_RTL (parms)) < FIRST_PSEUDO_REGISTER)
1357 best_rtl = DECL_RTL (parms);
1358 /* If the parm lives nowhere,
1359 use the register where it was passed. */
1361 best_rtl = DECL_INCOMING_RTL (parms);
1364 PUT_SDB_INT_VAL (DBX_REGISTER_NUMBER (REGNO (best_rtl)));
1365 PUT_SDB_SCL (C_REGPARM);
1366 PUT_SDB_TYPE (plain_type (TREE_TYPE (parms)));
1369 else if (GET_CODE (DECL_RTL (parms)) == MEM
1370 && XEXP (DECL_RTL (parms), 0) != const0_rtx)
1372 /* Parm was passed in registers but lives on the stack. */
1374 /* DECL_RTL looks like (MEM (PLUS (REG...) (CONST_INT...))),
1375 in which case we want the value of that CONST_INT,
1376 or (MEM (REG ...)) or (MEM (MEM ...)),
1377 in which case we use a value of zero. */
1378 if (GET_CODE (XEXP (DECL_RTL (parms), 0)) == REG
1379 || GET_CODE (XEXP (DECL_RTL (parms), 0)) == MEM)
1380 current_sym_value = 0;
1382 current_sym_value = INTVAL (XEXP (XEXP (DECL_RTL (parms), 0), 1));
1384 /* Again, this assumes the offset is based on the arg pointer. */
1386 PUT_SDB_INT_VAL (DEBUGGER_ARG_OFFSET (current_sym_value,
1387 XEXP (DECL_RTL (parms), 0)));
1388 PUT_SDB_SCL (C_ARG);
1389 PUT_SDB_TYPE (plain_type (TREE_TYPE (parms)));
1395 /* Output definitions for the places where parms live during the function,
1396 when different from where they were passed, when the parms were passed
1399 It is not useful to do this for parms passed in registers
1400 that live during the function in different registers, because it is
1401 impossible to look in the passed register for the passed value,
1402 so we use the within-the-function register to begin with.
1404 PARMS is a chain of PARM_DECL nodes. */
1407 sdbout_reg_parms (parms)
1410 for (; parms; parms = TREE_CHAIN (parms))
1411 if (DECL_NAME (parms))
1413 const char *name = IDENTIFIER_POINTER (DECL_NAME (parms));
1415 /* Report parms that live in registers during the function
1416 but were passed in memory. */
1417 if (GET_CODE (DECL_RTL (parms)) == REG
1418 && REGNO (DECL_RTL (parms)) < FIRST_PSEUDO_REGISTER
1419 && PARM_PASSED_IN_MEMORY (parms))
1421 if (name == 0 || *name == 0)
1422 name = gen_fake_label ();
1424 PUT_SDB_INT_VAL (DBX_REGISTER_NUMBER (REGNO (DECL_RTL (parms))));
1425 PUT_SDB_SCL (C_REG);
1426 PUT_SDB_TYPE (plain_type (TREE_TYPE (parms)));
1429 /* Report parms that live in memory but not where they were passed. */
1430 else if (GET_CODE (DECL_RTL (parms)) == MEM
1431 && GET_CODE (XEXP (DECL_RTL (parms), 0)) == PLUS
1432 && GET_CODE (XEXP (XEXP (DECL_RTL (parms), 0), 1)) == CONST_INT
1433 && PARM_PASSED_IN_MEMORY (parms)
1434 && ! rtx_equal_p (DECL_RTL (parms), DECL_INCOMING_RTL (parms)))
1436 #if 0 /* ??? It is not clear yet what should replace this. */
1437 int offset = DECL_OFFSET (parms) / BITS_PER_UNIT;
1438 /* A parm declared char is really passed as an int,
1439 so it occupies the least significant bytes.
1440 On a big-endian machine those are not the low-numbered ones. */
1441 if (BYTES_BIG_ENDIAN
1443 && TREE_TYPE (parms) != DECL_ARG_TYPE (parms))
1444 offset += (GET_MODE_SIZE (TYPE_MODE (DECL_ARG_TYPE (parms)))
1445 - GET_MODE_SIZE (GET_MODE (DECL_RTL (parms))));
1446 if (INTVAL (XEXP (XEXP (DECL_RTL (parms), 0), 1)) != offset) {...}
1449 if (name == 0 || *name == 0)
1450 name = gen_fake_label ();
1452 PUT_SDB_INT_VAL (DEBUGGER_AUTO_OFFSET
1453 (XEXP (DECL_RTL (parms), 0)));
1454 PUT_SDB_SCL (C_AUTO);
1455 PUT_SDB_TYPE (plain_type (TREE_TYPE (parms)));
1462 /* Describe the beginning of an internal block within a function.
1463 Also output descriptions of variables defined in this block.
1465 N is the number of the block, by order of beginning, counting from 1,
1466 and not counting the outermost (function top-level) block.
1467 The blocks match the BLOCKs in DECL_INITIAL (current_function_decl),
1468 if the count starts at 0 for the outermost one. */
1471 sdbout_begin_block (line, n)
1475 tree decl = current_function_decl;
1476 MAKE_LINE_SAFE (line);
1478 /* The SCO compiler does not emit a separate block for the function level
1479 scope, so we avoid it here also. However, mips ECOFF compilers do emit
1480 a separate block, so we retain it when MIPS_DEBUGGING_INFO is defined. */
1481 #ifndef MIPS_DEBUGGING_INFO
1484 PUT_SDB_BLOCK_START (line - sdb_begin_function_line);
1488 /* Include the outermost BLOCK's variables in block 1. */
1489 do_block = BLOCK_NUMBER (DECL_INITIAL (decl));
1490 sdbout_block (DECL_INITIAL (decl));
1492 /* If -g1, suppress all the internal symbols of functions
1493 except for arguments. */
1494 if (debug_info_level != DINFO_LEVEL_TERSE)
1497 sdbout_block (DECL_INITIAL (decl));
1500 #ifdef SDB_ALLOW_FORWARD_REFERENCES
1501 sdbout_dequeue_anonymous_types ();
1505 /* Describe the end line-number of an internal block within a function. */
1508 sdbout_end_block (line, n)
1510 unsigned int n ATTRIBUTE_UNUSED;
1512 MAKE_LINE_SAFE (line);
1514 /* The SCO compiler does not emit a separate block for the function level
1515 scope, so we avoid it here also. However, mips ECOFF compilers do emit
1516 a separate block, so we retain it when MIPS_DEBUGGING_INFO is defined. */
1517 #ifndef MIPS_DEBUGGING_INFO
1520 PUT_SDB_BLOCK_END (line - sdb_begin_function_line);
1524 sdbout_source_line (filename, note)
1525 const char *filename ATTRIBUTE_UNUSED;
1528 unsigned int line = NOTE_LINE_NUMBER (note);
1530 /* COFF relative line numbers must be positive. */
1531 if (line > sdb_begin_function_line)
1533 #ifdef ASM_OUTPUT_SOURCE_LINE
1534 ASM_OUTPUT_SOURCE_LINE (asm_out_file, line);
1536 fprintf (asm_out_file, "\t.ln\t%d\n",
1537 ((sdb_begin_function_line > -1)
1538 ? line - sdb_begin_function_line : 1));
1543 /* Output sdb info for the current function name.
1544 Called from assemble_start_function. */
1547 sdbout_mark_begin_function ()
1549 sdbout_symbol (current_function_decl, 0);
1552 /* Called at beginning of function body (after prologue).
1553 Record the function's starting line number, so we can output
1554 relative line numbers for the other lines.
1555 Describe beginning of outermost block.
1556 Also describe the parameter list. */
1559 sdbout_begin_function (line)
1562 sdb_begin_function_line = line - 1;
1563 PUT_SDB_FUNCTION_START (line);
1564 sdbout_parms (DECL_ARGUMENTS (current_function_decl));
1565 sdbout_reg_parms (DECL_ARGUMENTS (current_function_decl));
1568 /* Called at end of function (before epilogue).
1569 Describe end of outermost block. */
1572 sdbout_end_function (line)
1575 #ifdef SDB_ALLOW_FORWARD_REFERENCES
1576 sdbout_dequeue_anonymous_types ();
1579 MAKE_LINE_SAFE (line);
1580 PUT_SDB_FUNCTION_END (line - sdb_begin_function_line);
1582 /* Indicate we are between functions, for line-number output. */
1583 sdb_begin_function_line = -1;
1586 /* Output sdb info for the absolute end of a function.
1587 Called after the epilogue is output. */
1590 sdbout_end_epilogue ()
1593 = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (current_function_decl));
1595 #ifdef PUT_SDB_EPILOGUE_END
1596 PUT_SDB_EPILOGUE_END (name);
1598 fprintf (asm_out_file, "\t.def\t");
1599 assemble_name (asm_out_file, name);
1600 fprintf (asm_out_file, "%s\t.val\t.%s\t.scl\t-1%s\t.endef\n",
1601 SDB_DELIM, SDB_DELIM, SDB_DELIM);
1605 /* Output sdb info for the given label. Called only if LABEL_NAME (insn)
1612 PUT_SDB_DEF (LABEL_NAME (insn));
1614 PUT_SDB_SCL (C_LABEL);
1615 PUT_SDB_TYPE (T_NULL);
1619 /* Change to reading from a new source file. */
1622 sdbout_start_source_file (line, filename)
1623 unsigned int line ATTRIBUTE_UNUSED;
1624 const char *filename ATTRIBUTE_UNUSED;
1626 #ifdef MIPS_DEBUGGING_INFO
1627 struct sdb_file *n = (struct sdb_file *) xmalloc (sizeof *n);
1629 n->next = current_file;
1632 PUT_SDB_SRC_FILE (filename);
1636 /* Revert to reading a previous source file. */
1639 sdbout_end_source_file (line)
1640 unsigned int line ATTRIBUTE_UNUSED;
1642 #ifdef MIPS_DEBUGGING_INFO
1643 struct sdb_file *next;
1645 next = current_file->next;
1646 free (current_file);
1647 current_file = next;
1648 PUT_SDB_SRC_FILE (current_file->name);
1652 /* Set up for SDB output at the start of compilation. */
1655 sdbout_init (input_file_name)
1656 const char *input_file_name ATTRIBUTE_UNUSED;
1658 #ifdef MIPS_DEBUGGING_INFO
1659 current_file = (struct sdb_file *) xmalloc (sizeof *current_file);
1660 current_file->next = NULL;
1661 current_file->name = input_file_name;
1664 #ifdef RMS_QUICK_HACK_1
1666 for (t = getdecls (); t; t = TREE_CHAIN (t))
1667 if (DECL_NAME (t) && IDENTIFIER_POINTER (DECL_NAME (t)) != 0
1668 && !strcmp (IDENTIFIER_POINTER (DECL_NAME (t)), "__vtbl_ptr_type"))
1669 sdbout_symbol (t, 0);
1672 #ifdef SDB_ALLOW_FORWARD_REFERENCES
1673 ggc_add_tree_root (&anonymous_types, 1);
1677 #endif /* SDB_DEBUGGING_INFO */