1 /* Output VMS debug format symbol table information from the GNU C compiler.
2 Copyright (C) 1997-2001 Free Software Foundation, Inc.
3 Contributed by Douglas B. Rupp (rupp@gnat.com).
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, 675 Mass Ave, Cambridge, MA 02139, USA. */
23 #ifdef VMS_DEBUGGING_INFO
31 #include "langhooks.h"
33 /* Difference in seconds between the VMS Epoch and the Unix Epoch */
34 static const long long vms_epoch_offset = 3506716800ll;
36 /* NOTE: In the comments in this file, many references are made to "Debug
37 Symbol Table". This term is abbreviated as `DST' throughout the remainder
40 typedef struct dst_line_info_struct *dst_line_info_ref;
42 /* Each entry in the line_info_table maintains the file and
43 line number associated with the label generated for that
44 entry. The label gives the PC value associated with
45 the line number entry. */
46 typedef struct dst_line_info_struct
48 unsigned long dst_file_num;
49 unsigned long dst_line_num;
53 typedef struct dst_file_info_struct *dst_file_info_ref;
55 typedef struct dst_file_info_struct
58 unsigned int max_line;
59 unsigned int listing_line_start;
68 /* How to start an assembler comment. */
69 #ifndef ASM_COMMENT_START
70 #define ASM_COMMENT_START ";#"
73 /* Maximum size (in bytes) of an artificially generated label. */
74 #define MAX_ARTIFICIAL_LABEL_BYTES 30
76 /* Make sure we know the sizes of the various types debug can describe. These
77 are only defaults. If the sizes are different for your target, you should
78 override these values by defining the appropriate symbols in your tm.h
80 #ifndef CHAR_TYPE_SIZE
81 #define CHAR_TYPE_SIZE BITS_PER_UNIT
84 #define PTR_SIZE 4 /* Must be 32 bits for VMS debug info */
87 /* Pointer to an structure of filenames referenced by this compilation unit. */
88 static dst_file_info_ref file_info_table;
90 /* Total number of entries in the table (i.e. array) pointed to by
91 `file_info_table'. This is the *total* and includes both used and unused
93 static unsigned int file_info_table_allocated;
95 /* Number of entries in the file_info_table which are actually in use. */
96 static unsigned int file_info_table_in_use;
98 /* Size (in elements) of increments by which we may expand the filename
100 #define FILE_TABLE_INCREMENT 64
102 static char **func_table;
103 static unsigned int func_table_allocated;
104 static unsigned int func_table_in_use;
105 #define FUNC_TABLE_INCREMENT 256
107 /* Local pointer to the name of the main input file. Initialized in
109 static const char *primary_filename;
111 static char *module_producer;
112 static unsigned int module_language;
114 /* A pointer to the base of a table that contains line information
115 for each source code line in .text in the compilation unit. */
116 static dst_line_info_ref line_info_table;
118 /* Number of elements currently allocated for line_info_table. */
119 static unsigned int line_info_table_allocated;
121 /* Number of elements in line_info_table currently in use. */
122 static unsigned int line_info_table_in_use;
124 /* Size (in elements) of increments by which we may expand line_info_table. */
125 #define LINE_INFO_TABLE_INCREMENT 1024
127 /* The number of the current function definition for which debugging
128 information is being generated. These numbers range from 1 up to the
129 maximum number of function definitions contained within the current
130 compilation unit. These numbers are used to create unique label id's unique
131 to each function definition. */
132 static unsigned int current_funcdef_number = 0;
134 /* Forward declarations for functions defined in this file. */
135 static char *full_name PARAMS ((const char *));
136 static unsigned int lookup_filename PARAMS ((const char *));
137 static void addr_const_to_string PARAMS ((char *, rtx));
138 static int write_debug_header PARAMS ((DST_HEADER *, const char *, int));
139 static int write_debug_addr PARAMS ((char *, const char *, int));
140 static int write_debug_data1 PARAMS ((unsigned int, const char *, int));
141 static int write_debug_data2 PARAMS ((unsigned int, const char *, int));
142 static int write_debug_data4 PARAMS ((unsigned long, const char *, int));
143 static int write_debug_data8 PARAMS ((unsigned long long, const char *,
145 static int write_debug_delta4 PARAMS ((char *, char *, const char *, int));
146 static int write_debug_string PARAMS ((char *, const char *, int));
147 static int write_modbeg PARAMS ((int));
148 static int write_modend PARAMS ((int));
149 static int write_rtnbeg PARAMS ((int, int));
150 static int write_rtnend PARAMS ((int, int));
151 static int write_pclines PARAMS ((int));
152 static int write_srccorr PARAMS ((int, dst_file_info_entry, int));
153 static int write_srccorrs PARAMS ((int));
155 static void vmsdbgout_init PARAMS ((const char *));
156 static void vmsdbgout_finish PARAMS ((const char *));
157 static void vmsdbgout_define PARAMS ((unsigned int, const char *));
158 static void vmsdbgout_undef PARAMS ((unsigned int, const char *));
159 static void vmsdbgout_start_source_file PARAMS ((unsigned int, const char *));
160 static void vmsdbgout_end_source_file PARAMS ((unsigned int));
161 static void vmsdbgout_begin_block PARAMS ((unsigned int, unsigned int));
162 static void vmsdbgout_end_block PARAMS ((unsigned int, unsigned int));
163 static bool vmsdbgout_ignore_block PARAMS ((tree));
164 static void vmsdbgout_source_line PARAMS ((unsigned int, const char *));
165 static void vmsdbgout_begin_prologue PARAMS ((unsigned int, const char *));
166 static void vmsdbgout_end_epilogue PARAMS ((void));
167 static void vmsdbgout_begin_function PARAMS ((tree));
168 static void vmsdbgout_decl PARAMS ((tree));
169 static void vmsdbgout_global_decl PARAMS ((tree));
170 static void vmsdbgout_abstract_function PARAMS ((tree));
173 /* The debug hooks structure. */
175 struct gcc_debug_hooks vmsdbg_debug_hooks
180 vmsdbgout_start_source_file,
181 vmsdbgout_end_source_file,
182 vmsdbgout_begin_block,
184 vmsdbgout_ignore_block,
185 vmsdbgout_source_line,
186 vmsdbgout_begin_prologue,
187 debug_nothing_int, /* end_prologue */
188 vmsdbgout_end_epilogue, /* end_epilogue */
189 vmsdbgout_begin_function, /* begin_function */
190 debug_nothing_int, /* end_function */
192 vmsdbgout_global_decl,
193 debug_nothing_tree, /* deferred_inline_function */
194 vmsdbgout_abstract_function,
195 debug_nothing_rtx /* label */
198 /* Definitions of defaults for assembler-dependent names of various
199 pseudo-ops and section names.
200 Theses may be overridden in the tm.h file (if necessary) for a particular
202 #ifdef UNALIGNED_SHORT_ASM_OP
203 #undef UNALIGNED_SHORT_ASM_OP
205 #define UNALIGNED_SHORT_ASM_OP ".word"
207 #ifdef UNALIGNED_INT_ASM_OP
208 #undef UNALIGNED_INT_ASM_OP
210 #define UNALIGNED_INT_ASM_OP ".long"
212 #ifdef UNALIGNED_LONG_ASM_OP
213 #undef UNALIGNED_LONG_ASM_OP
215 #define UNALIGNED_LONG_ASM_OP ".long"
217 #ifdef UNALIGNED_DOUBLE_INT_ASM_OP
218 #undef UNALIGNED_DOUBLE_INT_ASM_OP
220 #define UNALIGNED_DOUBLE_INT_ASM_OP ".quad"
225 #define ASM_BYTE_OP ".byte"
227 #define NUMBYTES(I) ((I) < 256 ? 1 : (I) < 65536 ? 2 : 4)
229 #define NUMBYTES0(I) ((I) < 128 ? 0 : (I) < 65536 ? 2 : 4)
231 #ifndef UNALIGNED_PTR_ASM_OP
232 #define UNALIGNED_PTR_ASM_OP \
233 (PTR_SIZE == 8 ? UNALIGNED_DOUBLE_INT_ASM_OP : UNALIGNED_INT_ASM_OP)
236 #ifndef UNALIGNED_OFFSET_ASM_OP
237 #define UNALIGNED_OFFSET_ASM_OP(OFFSET) \
238 (NUMBYTES(OFFSET) == 4 \
239 ? UNALIGNED_LONG_ASM_OP \
240 : (NUMBYTES(OFFSET) == 2 ? UNALIGNED_SHORT_ASM_OP : ASM_BYTE_OP))
243 /* Pseudo-op for defining a new section. */
244 #ifndef SECTION_ASM_OP
245 #define SECTION_ASM_OP ".section"
248 /* Definitions of defaults for formats and names of various special
249 (artificial) labels which may be generated within this file (when the -g
250 options is used and VMS_DEBUGGING_INFO is in effect. If necessary, these
251 may be overridden from within the tm.h file, but typically, overriding these
252 defaults is unnecessary. */
254 static char text_end_label[MAX_ARTIFICIAL_LABEL_BYTES];
256 #ifndef TEXT_END_LABEL
257 #define TEXT_END_LABEL "Lvetext"
259 #ifndef FUNC_BEGIN_LABEL
260 #define FUNC_BEGIN_LABEL "LVFB"
262 #ifndef FUNC_PROLOG_LABEL
263 #define FUNC_PROLOG_LABEL "LVFP"
265 #ifndef FUNC_END_LABEL
266 #define FUNC_END_LABEL "LVFE"
268 #ifndef BLOCK_BEGIN_LABEL
269 #define BLOCK_BEGIN_LABEL "LVBB"
271 #ifndef BLOCK_END_LABEL
272 #define BLOCK_END_LABEL "LVBE"
274 #ifndef LINE_CODE_LABEL
275 #define LINE_CODE_LABEL "LVM"
278 #ifndef ASM_OUTPUT_DEBUG_DELTA2
279 #define ASM_OUTPUT_DEBUG_DELTA2(FILE,LABEL1,LABEL2) \
280 do { fprintf ((FILE), "\t%s\t", UNALIGNED_SHORT_ASM_OP); \
281 assemble_name (FILE, LABEL1); \
282 fprintf (FILE, "-"); \
283 assemble_name (FILE, LABEL2); \
287 #ifndef ASM_OUTPUT_DEBUG_DELTA4
288 #define ASM_OUTPUT_DEBUG_DELTA4(FILE,LABEL1,LABEL2) \
289 do { fprintf ((FILE), "\t%s\t", UNALIGNED_INT_ASM_OP); \
290 assemble_name (FILE, LABEL1); \
291 fprintf (FILE, "-"); \
292 assemble_name (FILE, LABEL2); \
296 #ifndef ASM_OUTPUT_DEBUG_ADDR_DELTA
297 #define ASM_OUTPUT_DEBUG_ADDR_DELTA(FILE,LABEL1,LABEL2) \
298 do { fprintf ((FILE), "\t%s\t", UNALIGNED_PTR_ASM_OP); \
299 assemble_name (FILE, LABEL1); \
300 fprintf (FILE, "-"); \
301 assemble_name (FILE, LABEL2); \
305 #ifndef ASM_OUTPUT_DEBUG_ADDR
306 #define ASM_OUTPUT_DEBUG_ADDR(FILE,LABEL) \
307 do { fprintf ((FILE), "\t%s\t", UNALIGNED_PTR_ASM_OP); \
308 assemble_name (FILE, LABEL); \
312 #ifndef ASM_OUTPUT_DEBUG_ADDR_CONST
313 #define ASM_OUTPUT_DEBUG_ADDR_CONST(FILE,ADDR) \
314 fprintf ((FILE), "\t%s\t%s", UNALIGNED_PTR_ASM_OP, (ADDR))
317 #ifndef ASM_OUTPUT_DEBUG_DATA1
318 #define ASM_OUTPUT_DEBUG_DATA1(FILE,VALUE) \
319 fprintf ((FILE), "\t%s\t0x%x", ASM_BYTE_OP, (unsigned char) VALUE)
322 #ifndef ASM_OUTPUT_DEBUG_DATA2
323 #define ASM_OUTPUT_DEBUG_DATA2(FILE,VALUE) \
324 fprintf ((FILE), "\t%s\t0x%x", UNALIGNED_SHORT_ASM_OP, \
325 (unsigned short) VALUE)
328 #ifndef ASM_OUTPUT_DEBUG_DATA4
329 #define ASM_OUTPUT_DEBUG_DATA4(FILE,VALUE) \
330 fprintf ((FILE), "\t%s\t0x%lx", UNALIGNED_INT_ASM_OP, (unsigned long) VALUE)
333 #ifndef ASM_OUTPUT_DEBUG_DATA
334 #define ASM_OUTPUT_DEBUG_DATA(FILE,VALUE) \
335 fprintf ((FILE), "\t%s\t0x%lx", UNALIGNED_OFFSET_ASM_OP(VALUE), VALUE)
338 #ifndef ASM_OUTPUT_DEBUG_ADDR_DATA
339 #define ASM_OUTPUT_DEBUG_ADDR_DATA(FILE,VALUE) \
340 fprintf ((FILE), "\t%s\t0x%lx", UNALIGNED_PTR_ASM_OP, \
341 (unsigned long) VALUE)
344 #ifndef ASM_OUTPUT_DEBUG_DATA8
345 #define ASM_OUTPUT_DEBUG_DATA8(FILE,VALUE) \
346 fprintf ((FILE), "\t%s\t0x%llx", UNALIGNED_DOUBLE_INT_ASM_OP, \
347 (unsigned long long) VALUE)
350 /* This is similar to the default ASM_OUTPUT_ASCII, except that no trailing
351 newline is produced. When flag_verbose_asm is asserted, we add commnetary
352 at the end of the line, so we must avoid output of a newline here. */
353 #ifndef ASM_OUTPUT_DEBUG_STRING
354 #define ASM_OUTPUT_DEBUG_STRING(FILE,P) \
356 register int slen = strlen(P); \
357 register char *p = (P); \
359 fprintf (FILE, "\t.ascii \""); \
360 for (i = 0; i < slen; i++) \
362 register int c = p[i]; \
363 if (c == '\"' || c == '\\') \
365 if (c >= ' ' && c < 0177) \
368 fprintf (FILE, "\\%o", c); \
370 fprintf (FILE, "\""); \
375 /* Convert a reference to the assembler name of a C-level name. This
376 macro has the same effect as ASM_OUTPUT_LABELREF, but copies to
377 a string rather than writing to a file. */
378 #ifndef ASM_NAME_TO_STRING
379 #define ASM_NAME_TO_STRING(STR, NAME) \
381 if ((NAME)[0] == '*') \
382 strcpy (STR, NAME+1); \
384 strcpy (STR, NAME); \
390 /* General utility functions. */
392 /* Convert an integer constant expression into assembler syntax. Addition and
393 subtraction are the only arithmetic that may appear in these expressions.
394 This is an adaptation of output_addr_const in final.c. Here, the target
395 of the conversion is a string buffer. We can't use output_addr_const
396 directly, because it writes to a file. */
399 addr_const_to_string (str, x)
408 switch (GET_CODE (x))
418 ASM_NAME_TO_STRING (buf1, XSTR (x, 0));
423 ASM_GENERATE_INTERNAL_LABEL (buf1, "L", CODE_LABEL_NUMBER (XEXP (x, 0)));
424 ASM_NAME_TO_STRING (buf2, buf1);
429 ASM_GENERATE_INTERNAL_LABEL (buf1, "L", CODE_LABEL_NUMBER (x));
430 ASM_NAME_TO_STRING (buf2, buf1);
435 sprintf (buf1, HOST_WIDE_INT_PRINT_DEC, INTVAL (x));
440 /* This used to output parentheses around the expression, but that does
441 not work on the 386 (either ATT or BSD assembler). */
442 addr_const_to_string (buf1, XEXP (x, 0));
447 if (GET_MODE (x) == VOIDmode)
449 /* We can use %d if the number is one word and positive. */
450 if (CONST_DOUBLE_HIGH (x))
451 sprintf (buf1, HOST_WIDE_INT_PRINT_DOUBLE_HEX,
452 CONST_DOUBLE_HIGH (x), CONST_DOUBLE_LOW (x));
453 else if (CONST_DOUBLE_LOW (x) < 0)
454 sprintf (buf1, HOST_WIDE_INT_PRINT_HEX, CONST_DOUBLE_LOW (x));
456 sprintf (buf1, HOST_WIDE_INT_PRINT_DEC,
457 CONST_DOUBLE_LOW (x));
461 /* We can't handle floating point constants; PRINT_OPERAND must
463 output_operand_lossage ("floating constant misused");
467 /* Some assemblers need integer constants to appear last (eg masm). */
468 if (GET_CODE (XEXP (x, 0)) == CONST_INT)
470 addr_const_to_string (buf1, XEXP (x, 1));
472 if (INTVAL (XEXP (x, 0)) >= 0)
474 addr_const_to_string (buf1, XEXP (x, 0));
479 addr_const_to_string (buf1, XEXP (x, 0));
481 if (INTVAL (XEXP (x, 1)) >= 0)
483 addr_const_to_string (buf1, XEXP (x, 1));
489 /* Avoid outputting things like x-x or x+5-x, since some assemblers
490 can't handle that. */
491 x = simplify_subtraction (x);
492 if (GET_CODE (x) != MINUS)
495 addr_const_to_string (buf1, XEXP (x, 0));
498 if (GET_CODE (XEXP (x, 1)) == CONST_INT
499 && INTVAL (XEXP (x, 1)) < 0)
502 addr_const_to_string (buf1, XEXP (x, 1));
508 addr_const_to_string (buf1, XEXP (x, 1));
515 addr_const_to_string (buf1, XEXP (x, 0));
520 output_operand_lossage ("invalid expression as operand");
525 write_debug_header (header, comment, dosizeonly)
533 ASM_OUTPUT_DEBUG_DATA2 (asm_out_file,
534 header->dst__header_length.dst_w_length);
535 if (flag_verbose_asm)
536 fprintf (asm_out_file, "\t%s record length", ASM_COMMENT_START);
537 fputc ('\n', asm_out_file);
539 ASM_OUTPUT_DEBUG_DATA2 (asm_out_file,
540 header->dst__header_type.dst_w_type);
541 if (flag_verbose_asm)
542 fprintf (asm_out_file, "\t%s record type (%s)", ASM_COMMENT_START,
545 fputc ('\n', asm_out_file);
551 write_debug_addr (symbol, comment, dosizeonly)
559 ASM_OUTPUT_DEBUG_ADDR (asm_out_file, symbol);
560 if (flag_verbose_asm)
561 fprintf (asm_out_file, "\t%s %s", ASM_COMMENT_START, comment);
562 fputc ('\n', asm_out_file);
568 write_debug_data1 (data1, comment, dosizeonly)
576 ASM_OUTPUT_DEBUG_DATA1 (asm_out_file, data1);
577 if (flag_verbose_asm)
578 fprintf (asm_out_file, "\t%s %s", ASM_COMMENT_START, comment);
579 fputc ('\n', asm_out_file);
585 write_debug_data2 (data2, comment, dosizeonly)
593 ASM_OUTPUT_DEBUG_DATA2 (asm_out_file, data2);
594 if (flag_verbose_asm)
595 fprintf (asm_out_file, "\t%s %s", ASM_COMMENT_START, comment);
596 fputc ('\n', asm_out_file);
602 write_debug_data4 (data4, comment, dosizeonly)
610 ASM_OUTPUT_DEBUG_DATA4 (asm_out_file, data4);
611 if (flag_verbose_asm)
612 fprintf (asm_out_file, "\t%s %s", ASM_COMMENT_START, comment);
613 fputc ('\n', asm_out_file);
619 write_debug_data8 (data8, comment, dosizeonly)
620 unsigned long long data8;
627 ASM_OUTPUT_DEBUG_DATA8 (asm_out_file, data8);
628 if (flag_verbose_asm)
629 fprintf (asm_out_file, "\t%s %s", ASM_COMMENT_START, comment);
630 fputc ('\n', asm_out_file);
636 write_debug_delta4 (label1, label2, comment, dosizeonly)
645 ASM_OUTPUT_DEBUG_DELTA4(asm_out_file, label1, label2);
646 if (flag_verbose_asm)
647 fprintf (asm_out_file, "\t%s %s", ASM_COMMENT_START, comment);
648 fputc ('\n', asm_out_file);
654 write_debug_string (string, comment, dosizeonly)
660 return strlen (string);
662 ASM_OUTPUT_DEBUG_STRING (asm_out_file, string);
663 if (flag_verbose_asm)
664 fprintf (asm_out_file, "\t%s %s", ASM_COMMENT_START, comment);
665 fputc ('\n', asm_out_file);
667 return strlen (string);
671 write_modbeg (dosizeonly)
675 DST_MODULE_BEGIN modbeg;
678 char *module_name, *m;
683 /* Assumes primary filename has Unix syntax file spec. */
684 module_name = xstrdup (basename ((char *) primary_filename));
686 m = strrchr (module_name, '.');
690 modnamelen = strlen (module_name);
691 for (i = 0; i < modnamelen; i++)
692 module_name[i] = TOUPPER (module_name[i]);
694 prodnamelen = strlen (module_producer);
696 modbeg.dst_a_modbeg_header.dst__header_length.dst_w_length
697 = DST_K_MODBEG_SIZE + modnamelen + DST_K_MB_TRLR_SIZE + prodnamelen - 1;
698 modbeg.dst_a_modbeg_header.dst__header_type.dst_w_type = DST_K_MODBEG;
699 modbeg.dst_b_modbeg_flags.dst_v_modbeg_hide = 0;
700 modbeg.dst_b_modbeg_flags.dst_v_modbeg_version = 1;
701 modbeg.dst_b_modbeg_flags.dst_v_modbeg_unused = 0;
702 modbeg.dst_b_modbeg_unused = 0;
703 modbeg.dst_l_modbeg_language = module_language;
704 modbeg.dst_w_version_major = DST_K_VERSION_MAJOR;
705 modbeg.dst_w_version_minor = DST_K_VERSION_MINOR;
706 modbeg.dst_b_modbeg_name = strlen (module_name);
708 mb_trlr.dst_b_compiler = strlen (module_producer);
710 totsize += write_debug_header (&modbeg.dst_a_modbeg_header,
711 "modbeg", dosizeonly);
712 totsize += write_debug_data1 (*((char *) &modbeg.dst_b_modbeg_flags),
713 "flags", dosizeonly);
714 totsize += write_debug_data1 (modbeg.dst_b_modbeg_unused,
715 "unused", dosizeonly);
716 totsize += write_debug_data4 (modbeg.dst_l_modbeg_language,
717 "language", dosizeonly);
718 totsize += write_debug_data2 (modbeg.dst_w_version_major,
719 "DST major version", dosizeonly);
720 totsize += write_debug_data2 (modbeg.dst_w_version_minor,
721 "DST minor version", dosizeonly);
722 totsize += write_debug_data1 (modbeg.dst_b_modbeg_name,
723 "length of module name", dosizeonly);
724 totsize += write_debug_string (module_name, "module name", dosizeonly);
725 totsize += write_debug_data1 (mb_trlr.dst_b_compiler,
726 "length of compiler name", dosizeonly);
727 totsize += write_debug_string (module_producer, "compiler name", dosizeonly);
733 write_modend (dosizeonly)
736 DST_MODULE_END modend;
739 modend.dst_a_modend_header.dst__header_length.dst_w_length
740 = DST_K_MODEND_SIZE - 1;
741 modend.dst_a_modend_header.dst__header_type.dst_w_type = DST_K_MODEND;
743 totsize += write_debug_header (&modend.dst_a_modend_header, "modend",
750 write_rtnbeg (rtnnum, dosizeonly)
755 int rtnnamelen, rtnentrynamelen;
758 char label[MAX_ARTIFICIAL_LABEL_BYTES];
759 DST_ROUTINE_BEGIN rtnbeg;
762 rtnname = func_table[rtnnum];
763 rtnnamelen = strlen (rtnname);
764 rtnentrynamelen = rtnnamelen + 4; /* "..en" */
765 rtnentryname = (char *) xmalloc (rtnentrynamelen + 1);
766 strcpy (rtnentryname, rtnname);
767 strcat (rtnentryname, "..en");
769 if (!strcmp (rtnname, "main"))
772 const char *go = "TRANSFER$BREAK$GO";
774 /* This command isn't documented in DSTRECORDS, so it's made to
775 look like what DEC C does */
777 /* header size - 1st byte + flag byte + STO_LW size
778 + string count byte + string length */
779 header.dst__header_length.dst_w_length
780 = DST_K_DST_HEADER_SIZE - 1 + 1 + 4 + 1 + strlen (go);
781 header.dst__header_type.dst_w_type = 0x17;
783 totsize += write_debug_header (&header, "transfer", dosizeonly);
785 /* I think this is a flag byte, but I don't know what this flag means */
786 totsize += write_debug_data1 (0x1, "flags ???", dosizeonly);
788 /* Routine Begin PD Address */
789 totsize += write_debug_addr (rtnname, "main procedure descriptor",
791 totsize += write_debug_data1 (strlen (go), "length of main_name",
793 totsize += write_debug_string ((char *) go, "main name", dosizeonly);
796 /* The header length never includes the length byte */
797 rtnbeg.dst_a_rtnbeg_header.dst__header_length.dst_w_length
798 = DST_K_RTNBEG_SIZE + rtnnamelen - 1;
799 rtnbeg.dst_a_rtnbeg_header.dst__header_type.dst_w_type = DST_K_RTNBEG;
800 rtnbeg.dst_b_rtnbeg_flags.dst_v_rtnbeg_unused = 0;
801 rtnbeg.dst_b_rtnbeg_flags.dst_v_rtnbeg_unalloc = 0;
802 rtnbeg.dst_b_rtnbeg_flags.dst_v_rtnbeg_prototype = 0;
803 rtnbeg.dst_b_rtnbeg_flags.dst_v_rtnbeg_inlined = 0;
804 rtnbeg.dst_b_rtnbeg_flags.dst_v_rtnbeg_no_call = 1;
805 rtnbeg.dst_b_rtnbeg_name = rtnnamelen;
807 totsize += write_debug_header (&rtnbeg.dst_a_rtnbeg_header, "rtnbeg",
809 totsize += write_debug_data1 (*((char *) &rtnbeg.dst_b_rtnbeg_flags),
810 "flags", dosizeonly);
812 /* Routine Begin Address */
813 totsize += write_debug_addr (rtnentryname, "routine entry name", dosizeonly);
815 /* Routine Begin PD Address */
816 totsize += write_debug_addr (rtnname, "routine procedure descriptor",
819 /* Routine Begin Name */
820 totsize += write_debug_data1 (rtnbeg.dst_b_rtnbeg_name,
821 "length of routine name", dosizeonly);
823 totsize += write_debug_string (rtnname, "routine name", dosizeonly);
827 if (debug_info_level > DINFO_LEVEL_TERSE)
829 prolog.dst_a_prolog_header.dst__header_length.dst_w_length
830 = DST_K_PROLOG_SIZE - 1;
831 prolog.dst_a_prolog_header.dst__header_type.dst_w_type = DST_K_PROLOG;
833 totsize += write_debug_header (&prolog.dst_a_prolog_header, "prolog",
836 ASM_GENERATE_INTERNAL_LABEL (label, FUNC_PROLOG_LABEL, rtnnum);
837 totsize += write_debug_addr (label, "prolog breakpoint addr",
845 write_rtnend (rtnnum, dosizeonly)
849 DST_ROUTINE_END rtnend;
850 char label1[MAX_ARTIFICIAL_LABEL_BYTES];
851 char label2[MAX_ARTIFICIAL_LABEL_BYTES];
856 rtnend.dst_a_rtnend_header.dst__header_length.dst_w_length
857 = DST_K_RTNEND_SIZE - 1;
858 rtnend.dst_a_rtnend_header.dst__header_type.dst_w_type = DST_K_RTNEND;
859 rtnend.dst_b_rtnend_unused = 0;
860 rtnend.dst_l_rtnend_size = 0; /* Calculated below. */
862 totsize += write_debug_header (&rtnend.dst_a_rtnend_header, "rtnend",
864 totsize += write_debug_data1 (rtnend.dst_b_rtnend_unused, "unused",
867 ASM_GENERATE_INTERNAL_LABEL (label1, FUNC_BEGIN_LABEL, rtnnum);
868 ASM_GENERATE_INTERNAL_LABEL (label2, FUNC_END_LABEL, rtnnum);
869 totsize += write_debug_delta4 (label2, label1, "routine size", dosizeonly);
874 #define K_DELTA_PC(I) \
875 ((I) < 128 ? -(I) : (I) < 65536 ? DST_K_DELTA_PC_W : DST_K_DELTA_PC_L)
877 #define K_SET_LINUM(I) \
878 ((I) < 256 ? DST_K_SET_LINUM_B \
879 : (I) < 65536 ? DST_K_SET_LINUM : DST_K_SET_LINUM_L)
881 #define K_INCR_LINUM(I) \
882 ((I) < 256 ? DST_K_INCR_LINUM \
883 : (I) < 65536 ? DST_K_INCR_LINUM_W : DST_K_INCR_LINUM_L)
886 write_pclines (dosizeonly)
894 DST_LINE_NUM_HEADER line_num;
895 DST_PCLINE_COMMANDS pcline;
896 char label[MAX_ARTIFICIAL_LABEL_BYTES];
897 char lastlabel[MAX_ARTIFICIAL_LABEL_BYTES];
901 max_line = file_info_table[1].max_line;
902 file_info_table[1].listing_line_start = linestart;
903 linestart = linestart + ((max_line / 100000) + 1) * 100000;
905 for (i = 2; i < file_info_table_in_use; i++)
907 max_line = file_info_table[i].max_line;
908 file_info_table[i].listing_line_start = linestart;
909 linestart = linestart + ((max_line / 10000) + 1) * 10000;
912 /* Set starting address to beginning of text section */
913 line_num.dst_a_line_num_header.dst__header_length.dst_w_length = 8;
914 line_num.dst_a_line_num_header.dst__header_type.dst_w_type = DST_K_LINE_NUM;
915 pcline.dst_b_pcline_command = DST_K_SET_ABS_PC;
917 totsize += write_debug_header (&line_num.dst_a_line_num_header,
918 "line_num", dosizeonly);
919 totsize += write_debug_data1 (pcline.dst_b_pcline_command,
920 "line_num (SET ABS PC)", dosizeonly);
926 ASM_OUTPUT_DEBUG_ADDR (asm_out_file, TEXT_SECTION_ASM_OP);
927 if (flag_verbose_asm)
928 fprintf (asm_out_file, "\t%s line_num", ASM_COMMENT_START);
929 fputc ('\n', asm_out_file);
932 fn = line_info_table[1].dst_file_num;
933 ln = (file_info_table[fn].listing_line_start
934 + line_info_table[1].dst_line_num);
935 line_num.dst_a_line_num_header.dst__header_length.dst_w_length = 4 + 4;
936 pcline.dst_b_pcline_command = DST_K_SET_LINUM_L;
938 totsize += write_debug_header (&line_num.dst_a_line_num_header,
939 "line_num", dosizeonly);
940 totsize += write_debug_data1 (pcline.dst_b_pcline_command,
941 "line_num (SET LINUM LONG)", dosizeonly);
943 sprintf (buff, "line_num (%d)", ln - 1);
944 totsize += write_debug_data4 (ln - 1, buff, dosizeonly);
947 strcpy (lastlabel, TEXT_SECTION_ASM_OP);
948 for (i = 1; i < line_info_table_in_use; i++)
952 fn = line_info_table[i].dst_file_num;
953 ln = (file_info_table[fn].listing_line_start
954 + line_info_table[i].dst_line_num);
957 extrabytes = 5; /* NUMBYTES (ln - lastln - 1) + 1; */
958 else if (ln <= lastln)
959 extrabytes = 5; /* NUMBYTES (ln - 1) + 1; */
963 line_num.dst_a_line_num_header.dst__header_length.dst_w_length
966 totsize += write_debug_header
967 (&line_num.dst_a_line_num_header, "line_num", dosizeonly);
971 int lndif = ln - lastln - 1;
973 /* K_INCR_LINUM (lndif); */
974 pcline.dst_b_pcline_command = DST_K_INCR_LINUM_L;
976 totsize += write_debug_data1 (pcline.dst_b_pcline_command,
977 "line_num (INCR LINUM LONG)",
980 sprintf (buff, "line_num (%d)", lndif);
981 totsize += write_debug_data4 (lndif, buff, dosizeonly);
983 else if (ln <= lastln)
985 /* K_SET_LINUM (ln-1); */
986 pcline.dst_b_pcline_command = DST_K_SET_LINUM_L;
988 totsize += write_debug_data1 (pcline.dst_b_pcline_command,
989 "line_num (SET LINUM LONG)",
992 sprintf (buff, "line_num (%d)", ln - 1);
993 totsize += write_debug_data4 (ln - 1, buff, dosizeonly);
996 pcline.dst_b_pcline_command = DST_K_DELTA_PC_L;
998 totsize += write_debug_data1 (pcline.dst_b_pcline_command,
999 "line_num (DELTA PC LONG)", dosizeonly);
1001 ASM_GENERATE_INTERNAL_LABEL (label, LINE_CODE_LABEL, i);
1002 totsize += write_debug_delta4 (label, lastlabel, "increment line_num",
1006 strcpy (lastlabel, label);
1013 write_srccorr (fileid, file_info_entry, dosizeonly)
1015 dst_file_info_entry file_info_entry;
1018 int src_command_size;
1019 int linesleft = file_info_entry.max_line;
1020 int linestart = file_info_entry.listing_line_start;
1021 int flen = file_info_entry.flen;
1023 DST_SOURCE_CORR src_header;
1024 DST_SRC_COMMAND src_command;
1025 DST_SRC_COMMAND src_command_sf;
1026 DST_SRC_COMMAND src_command_sl;
1027 DST_SRC_COMMAND src_command_sr;
1028 DST_SRC_COMMAND src_command_dl;
1029 DST_SRC_CMDTRLR src_cmdtrlr;
1035 src_header.dst_a_source_corr_header.dst__header_length.dst_w_length
1036 = DST_K_SOURCE_CORR_HEADER_SIZE + 1 - 1;
1037 src_header.dst_a_source_corr_header.dst__header_type.dst_w_type
1039 src_command.dst_b_src_command = DST_K_SRC_FORMFEED;
1041 totsize += write_debug_header (&src_header.dst_a_source_corr_header,
1042 "source corr", dosizeonly);
1044 totsize += write_debug_data1 (src_command.dst_b_src_command,
1045 "source_corr (SRC FORMFEED)",
1050 = DST_K_SRC_COMMAND_SIZE + flen + DST_K_SRC_CMDTRLR_SIZE;
1051 src_command.dst_b_src_command = DST_K_SRC_DECLFILE;
1052 src_command.dst_a_src_cmd_fields.dst_a_src_decl_src.dst_b_src_df_length
1053 = src_command_size - 2;
1054 src_command.dst_a_src_cmd_fields.dst_a_src_decl_src.dst_b_src_df_flags = 0;
1055 src_command.dst_a_src_cmd_fields.dst_a_src_decl_src.dst_w_src_df_fileid
1057 src_command.dst_a_src_cmd_fields.dst_a_src_decl_src.dst_q_src_df_rms_cdt
1058 = file_info_entry.cdt;
1059 src_command.dst_a_src_cmd_fields.dst_a_src_decl_src.dst_l_src_df_rms_ebk
1060 = file_info_entry.ebk;
1061 src_command.dst_a_src_cmd_fields.dst_a_src_decl_src.dst_w_src_df_rms_ffb
1062 = file_info_entry.ffb;
1063 src_command.dst_a_src_cmd_fields.dst_a_src_decl_src.dst_b_src_df_rms_rfo
1064 = file_info_entry.rfo;
1065 src_command.dst_a_src_cmd_fields.dst_a_src_decl_src.dst_b_src_df_filename
1066 = file_info_entry.flen;
1068 src_header.dst_a_source_corr_header.dst__header_length.dst_w_length
1069 = DST_K_SOURCE_CORR_HEADER_SIZE + src_command_size - 1;
1070 src_header.dst_a_source_corr_header.dst__header_type.dst_w_type
1073 src_cmdtrlr.dst_b_src_df_libmodname = 0;
1075 totsize += write_debug_header (&src_header.dst_a_source_corr_header,
1076 "source corr", dosizeonly);
1077 totsize += write_debug_data1 (src_command.dst_b_src_command,
1078 "source_corr (DECL SRC FILE)", dosizeonly);
1079 totsize += write_debug_data1
1080 (src_command.dst_a_src_cmd_fields.dst_a_src_decl_src.dst_b_src_df_length,
1081 "source_corr (length)", dosizeonly);
1083 totsize += write_debug_data1
1084 (src_command.dst_a_src_cmd_fields.dst_a_src_decl_src.dst_b_src_df_flags,
1085 "source_corr (flags)", dosizeonly);
1087 totsize += write_debug_data2
1088 (src_command.dst_a_src_cmd_fields.dst_a_src_decl_src.dst_w_src_df_fileid,
1089 "source_corr (fileid)", dosizeonly);
1091 totsize += write_debug_data8
1092 (src_command.dst_a_src_cmd_fields.dst_a_src_decl_src.dst_q_src_df_rms_cdt,
1093 "source_corr (creation date)", dosizeonly);
1095 totsize += write_debug_data4
1096 (src_command.dst_a_src_cmd_fields.dst_a_src_decl_src.dst_l_src_df_rms_ebk,
1097 "source_corr (EOF block number)", dosizeonly);
1099 totsize += write_debug_data2
1100 (src_command.dst_a_src_cmd_fields.dst_a_src_decl_src.dst_w_src_df_rms_ffb,
1101 "source_corr (first free byte)", dosizeonly);
1103 totsize += write_debug_data1
1104 (src_command.dst_a_src_cmd_fields.dst_a_src_decl_src.dst_b_src_df_rms_rfo,
1105 "source_corr (record and file organization)", dosizeonly);
1107 totsize += write_debug_data1
1108 (src_command.dst_a_src_cmd_fields.dst_a_src_decl_src.dst_b_src_df_filename,
1109 "source_corr (filename length)", dosizeonly);
1111 totsize += write_debug_string (file_info_entry.file_name,
1112 "source file name", dosizeonly);
1113 totsize += write_debug_data1 (src_cmdtrlr.dst_b_src_df_libmodname,
1114 "source_corr (libmodname)", dosizeonly);
1116 src_command_sf.dst_b_src_command = DST_K_SRC_SETFILE;
1117 src_command_sf.dst_a_src_cmd_fields.dst_w_src_unsword = fileid;
1119 src_command_sr.dst_b_src_command = DST_K_SRC_SETREC_W;
1120 src_command_sr.dst_a_src_cmd_fields.dst_w_src_unsword = 1;
1122 src_command_sl.dst_b_src_command = DST_K_SRC_SETLNUM_L;
1123 src_command_sl.dst_a_src_cmd_fields.dst_l_src_unslong = linestart + 1;
1125 src_command_dl.dst_b_src_command = DST_K_SRC_DEFLINES_W;
1127 if (linesleft > 65534)
1128 linesleft = linesleft - 65534, linestodo = 65534;
1130 linestodo = linesleft, linesleft = 0;
1132 src_command_dl.dst_a_src_cmd_fields.dst_w_src_unsword = linestodo;
1134 src_header.dst_a_source_corr_header.dst__header_length.dst_w_length
1135 = DST_K_SOURCE_CORR_HEADER_SIZE + 3 + 3 + 5 + 3 - 1;
1136 src_header.dst_a_source_corr_header.dst__header_type.dst_w_type
1139 totsize += write_debug_header (&src_header.dst_a_source_corr_header,
1140 "source corr", dosizeonly);
1142 totsize += write_debug_data1 (src_command_sf.dst_b_src_command,
1143 "source_corr (src setfile)", dosizeonly);
1145 totsize += write_debug_data2
1146 (src_command_sf.dst_a_src_cmd_fields.dst_w_src_unsword,
1147 "source_corr (fileid)", dosizeonly);
1149 totsize += write_debug_data1 (src_command_sr.dst_b_src_command,
1150 "source_corr (setrec)", dosizeonly);
1152 totsize += write_debug_data2
1153 (src_command_sr.dst_a_src_cmd_fields.dst_w_src_unsword,
1154 "source_corr (recnum)", dosizeonly);
1156 totsize += write_debug_data1 (src_command_sl.dst_b_src_command,
1157 "source_corr (setlnum)", dosizeonly);
1159 totsize += write_debug_data4
1160 (src_command_sl.dst_a_src_cmd_fields.dst_l_src_unslong,
1161 "source_corr (linenum)", dosizeonly);
1163 totsize += write_debug_data1 (src_command_dl.dst_b_src_command,
1164 "source_corr (deflines)", dosizeonly);
1166 sprintf (buff, "source_corr (%d)",
1167 src_command_dl.dst_a_src_cmd_fields.dst_w_src_unsword);
1168 totsize += write_debug_data2
1169 (src_command_dl.dst_a_src_cmd_fields.dst_w_src_unsword, buff, dosizeonly);
1171 while (linesleft > 0)
1173 src_header.dst_a_source_corr_header.dst__header_length.dst_w_length
1174 = DST_K_SOURCE_CORR_HEADER_SIZE + 3 - 1;
1175 src_header.dst_a_source_corr_header.dst__header_type.dst_w_type
1177 src_command_dl.dst_b_src_command = DST_K_SRC_DEFLINES_W;
1179 if (linesleft > 65534)
1180 linesleft = linesleft - 65534, linestodo = 65534;
1182 linestodo = linesleft, linesleft = 0;
1184 src_command_dl.dst_a_src_cmd_fields.dst_w_src_unsword = linestodo;
1186 totsize += write_debug_header (&src_header.dst_a_source_corr_header,
1187 "source corr", dosizeonly);
1188 totsize += write_debug_data1 (src_command_dl.dst_b_src_command,
1189 "source_corr (deflines)", dosizeonly);
1190 sprintf (buff, "source_corr (%d)",
1191 src_command_dl.dst_a_src_cmd_fields.dst_w_src_unsword);
1192 totsize += write_debug_data2
1193 (src_command_dl.dst_a_src_cmd_fields.dst_w_src_unsword,
1201 write_srccorrs (dosizeonly)
1207 for (i = 1; i < file_info_table_in_use; i++)
1208 totsize += write_srccorr (i, file_info_table[i], dosizeonly);
1214 /* Output a marker (i.e. a label) for the beginning of a function, before
1218 vmsdbgout_begin_prologue (line, file)
1222 char label[MAX_ARTIFICIAL_LABEL_BYTES];
1224 if (write_symbols == VMS_AND_DWARF2_DEBUG)
1225 (*dwarf2_debug_hooks.begin_prologue) (line, file);
1227 if (debug_info_level > DINFO_LEVEL_NONE)
1229 current_funcdef_number++;
1230 ASM_GENERATE_INTERNAL_LABEL (label, FUNC_BEGIN_LABEL,
1231 current_funcdef_number);
1232 ASM_OUTPUT_LABEL (asm_out_file, label);
1236 /* Output a marker (i.e. a label) for the beginning of a function, after
1240 vmsdbgout_after_prologue ()
1242 char label[MAX_ARTIFICIAL_LABEL_BYTES];
1244 if (debug_info_level > DINFO_LEVEL_TERSE)
1246 ASM_GENERATE_INTERNAL_LABEL (label, FUNC_PROLOG_LABEL,
1247 current_funcdef_number);
1248 ASM_OUTPUT_LABEL (asm_out_file, label);
1252 /* Output a marker (i.e. a label) for the absolute end of the generated code
1253 for a function definition. This gets called *after* the epilogue code has
1257 vmsdbgout_end_epilogue ()
1259 char label[MAX_ARTIFICIAL_LABEL_BYTES];
1261 if (write_symbols == VMS_AND_DWARF2_DEBUG)
1262 (*dwarf2_debug_hooks.end_epilogue) ();
1264 if (debug_info_level > DINFO_LEVEL_NONE)
1266 /* Output a label to mark the endpoint of the code generated for this
1268 ASM_GENERATE_INTERNAL_LABEL (label, FUNC_END_LABEL,
1269 current_funcdef_number);
1270 ASM_OUTPUT_LABEL (asm_out_file, label);
1274 /* Output a marker (i.e. a label) for the beginning of the generated code for
1278 vmsdbgout_begin_block (line, blocknum)
1279 register unsigned line;
1280 register unsigned blocknum;
1282 if (write_symbols == VMS_AND_DWARF2_DEBUG)
1283 (*dwarf2_debug_hooks.begin_block) (line, blocknum);
1285 if (debug_info_level > DINFO_LEVEL_TERSE)
1286 ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, BLOCK_BEGIN_LABEL, blocknum);
1289 /* Output a marker (i.e. a label) for the end of the generated code for a
1293 vmsdbgout_end_block (line, blocknum)
1294 register unsigned line;
1295 register unsigned blocknum;
1297 if (write_symbols == VMS_AND_DWARF2_DEBUG)
1298 (*dwarf2_debug_hooks.end_block) (line, blocknum);
1300 if (debug_info_level > DINFO_LEVEL_TERSE)
1301 ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, BLOCK_END_LABEL, blocknum);
1305 vmsdbgout_ignore_block (block)
1310 if (write_symbols == VMS_AND_DWARF2_DEBUG)
1311 retval = (*dwarf2_debug_hooks.ignore_block) (block);
1317 vmsdbgout_begin_function (decl)
1320 const char *name = XSTR (XEXP (DECL_RTL (decl), 0), 0);
1322 if (write_symbols == VMS_AND_DWARF2_DEBUG)
1323 (*dwarf2_debug_hooks.begin_function) (decl);
1325 if (func_table_in_use == func_table_allocated)
1327 func_table_allocated += FUNC_TABLE_INCREMENT;
1328 func_table = (char **) xrealloc (func_table,
1329 func_table_allocated * sizeof (char *));
1332 /* Add the new entry to the end of the function name table. */
1333 func_table[func_table_in_use++] = xstrdup (name);
1336 static char fullname_buff [4096];
1339 full_name (filename)
1340 const char *filename;
1343 FILE *fp = fopen (filename, "r");
1345 fgetname (fp, fullname_buff, 1);
1348 getcwd (fullname_buff, sizeof (fullname_buff));
1350 strcat (fullname_buff, "/");
1351 strcat (fullname_buff, filename);
1353 /* ??? Insert hairy code here to translate Unix style file specification
1357 return fullname_buff;
1360 /* Lookup a filename (in the list of filenames that we know about here in
1361 vmsdbgout.c) and return its "index". The index of each (known) filename is
1362 just a unique number which is associated with only that one filename. We
1363 need such numbers for the sake of generating labels (in the .debug_sfnames
1364 section) and references to those files numbers (in the .debug_srcinfo
1365 and.debug_macinfo sections). If the filename given as an argument is not
1366 found in our current list, add it to the list and assign it the next
1367 available unique index number. In order to speed up searches, we remember
1368 the index of the filename was looked up last. This handles the majority of
1372 lookup_filename (file_name)
1373 const char *file_name;
1375 static unsigned int last_file_lookup_index = 0;
1377 register unsigned i;
1384 struct stat statbuf;
1386 if (stat (file_name, &statbuf) == 0)
1388 cdt = 10000000 * (statbuf.st_ctime + vms_epoch_offset);
1389 ebk = statbuf.st_size / 512 + 1;
1390 ffb = statbuf.st_size - ((statbuf.st_size / 512) * 512);
1392 rfo = statbuf.st_fab_rfm;
1394 /* Assume stream LF type file */
1397 fnam = full_name (file_name);
1398 flen = strlen (fnam);
1410 /* Check to see if the file name that was searched on the previous call
1411 matches this file name. If so, return the index. */
1412 if (last_file_lookup_index != 0)
1414 fn = file_info_table[last_file_lookup_index].file_name;
1415 if (strcmp (fnam, fn) == 0)
1416 return last_file_lookup_index;
1419 /* Didn't match the previous lookup, search the table */
1420 for (i = 1; i < file_info_table_in_use; ++i)
1422 fn = file_info_table[i].file_name;
1423 if (strcmp (fnam, fn) == 0)
1425 last_file_lookup_index = i;
1430 /* Prepare to add a new table entry by making sure there is enough space in
1431 the table to do so. If not, expand the current table. */
1432 if (file_info_table_in_use == file_info_table_allocated)
1435 file_info_table_allocated += FILE_TABLE_INCREMENT;
1437 = (dst_file_info_ref) xrealloc (file_info_table,
1438 (file_info_table_allocated
1439 * sizeof (dst_file_info_entry)));
1442 /* Add the new entry to the end of the filename table. */
1443 file_info_table[file_info_table_in_use].file_name = xstrdup (fnam);
1444 file_info_table[file_info_table_in_use].max_line = 0;
1445 file_info_table[file_info_table_in_use].cdt = cdt;
1446 file_info_table[file_info_table_in_use].ebk = ebk;
1447 file_info_table[file_info_table_in_use].ffb = ffb;
1448 file_info_table[file_info_table_in_use].rfo = rfo;
1449 file_info_table[file_info_table_in_use].flen = flen;
1451 last_file_lookup_index = file_info_table_in_use++;
1452 return last_file_lookup_index;
1455 /* Output a label to mark the beginning of a source code line entry
1456 and record information relating to this source line, in
1457 'line_info_table' for later output of the .debug_line section. */
1460 vmsdbgout_source_line (line, filename)
1461 register unsigned line;
1462 register const char *filename;
1464 if (write_symbols == VMS_AND_DWARF2_DEBUG)
1465 (*dwarf2_debug_hooks.source_line) (line, filename);
1467 if (debug_info_level >= DINFO_LEVEL_TERSE)
1469 dst_line_info_ref line_info;
1471 ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, LINE_CODE_LABEL,
1472 line_info_table_in_use);
1474 /* Expand the line info table if necessary. */
1475 if (line_info_table_in_use == line_info_table_allocated)
1477 line_info_table_allocated += LINE_INFO_TABLE_INCREMENT;
1479 = (dst_line_info_ref) xrealloc (line_info_table,
1480 (line_info_table_allocated
1481 * sizeof (dst_line_info_entry)));
1484 /* Add the new entry at the end of the line_info_table. */
1485 line_info = &line_info_table[line_info_table_in_use++];
1486 line_info->dst_file_num = lookup_filename (filename);
1487 line_info->dst_line_num = line;
1488 if (line > file_info_table[line_info->dst_file_num].max_line)
1489 file_info_table[line_info->dst_file_num].max_line = line;
1493 /* Record the beginning of a new source file, for later output.
1494 At present, unimplemented. */
1497 vmsdbgout_start_source_file (lineno, filename)
1498 unsigned int lineno;
1499 const char *filename;
1501 if (write_symbols == VMS_AND_DWARF2_DEBUG)
1502 (*dwarf2_debug_hooks.start_source_file) (lineno, filename);
1505 /* Record the end of a source file, for later output.
1506 At present, unimplemented. */
1509 vmsdbgout_end_source_file (lineno)
1510 unsigned int lineno ATTRIBUTE_UNUSED;
1512 if (write_symbols == VMS_AND_DWARF2_DEBUG)
1513 (*dwarf2_debug_hooks.end_source_file) (lineno);
1516 /* Set up for Debug output at the start of compilation. */
1519 vmsdbgout_init (main_input_filename)
1520 const char *main_input_filename;
1522 const char *language_string = lang_hooks.name;
1524 if (write_symbols == VMS_AND_DWARF2_DEBUG)
1525 (*dwarf2_debug_hooks.init) (main_input_filename);
1527 if (debug_info_level == DINFO_LEVEL_NONE)
1530 /* Remember the name of the primary input file. */
1531 primary_filename = main_input_filename;
1533 /* Allocate the initial hunk of the file_info_table. */
1535 = (dst_file_info_ref) xcalloc (FILE_TABLE_INCREMENT,
1536 sizeof (dst_file_info_entry));
1537 file_info_table_allocated = FILE_TABLE_INCREMENT;
1539 /* Skip the first entry - file numbers begin at 1 */
1540 file_info_table_in_use = 1;
1542 func_table = (char **) xcalloc (FUNC_TABLE_INCREMENT, sizeof (char *));
1543 func_table_allocated = FUNC_TABLE_INCREMENT;
1544 func_table_in_use = 1;
1546 /* Allocate the initial hunk of the line_info_table. */
1548 = (dst_line_info_ref) xcalloc (LINE_INFO_TABLE_INCREMENT,
1549 sizeof (dst_line_info_entry));
1550 line_info_table_allocated = LINE_INFO_TABLE_INCREMENT;
1551 /* zero-th entry is allocated, but unused */
1552 line_info_table_in_use = 1;
1554 lookup_filename (primary_filename);
1556 if (!strcmp (language_string, "GNU C"))
1557 module_language = DST_K_C;
1558 else if (!strcmp (language_string, "GNU C++"))
1559 module_language = DST_K_CXX;
1560 else if (!strcmp (language_string, "GNU Ada"))
1561 module_language = DST_K_ADA;
1562 else if (!strcmp (language_string, "GNU F77"))
1563 module_language = DST_K_FORTRAN;
1565 module_language = DST_K_UNKNOWN;
1568 = (char *) xmalloc (strlen (language_string) + 1
1569 + strlen (version_string + 1));
1570 sprintf (module_producer, "%s %s", language_string, version_string);
1572 ASM_GENERATE_INTERNAL_LABEL (text_end_label, TEXT_END_LABEL, 0);
1577 vmsdbgout_define (lineno, buffer)
1578 unsigned int lineno;
1581 if (write_symbols == VMS_AND_DWARF2_DEBUG)
1582 (*dwarf2_debug_hooks.define) (lineno, buffer);
1586 vmsdbgout_undef (lineno, buffer)
1587 unsigned int lineno;
1590 if (write_symbols == VMS_AND_DWARF2_DEBUG)
1591 (*dwarf2_debug_hooks.undef) (lineno, buffer);
1595 vmsdbgout_decl (decl)
1598 if (write_symbols == VMS_AND_DWARF2_DEBUG)
1599 (*dwarf2_debug_hooks.function_decl) (decl);
1603 vmsdbgout_global_decl (decl)
1606 if (write_symbols == VMS_AND_DWARF2_DEBUG)
1607 (*dwarf2_debug_hooks.global_decl) (decl);
1611 vmsdbgout_abstract_function (decl)
1614 if (write_symbols == VMS_AND_DWARF2_DEBUG)
1615 (*dwarf2_debug_hooks.outlining_inline_function) (decl);
1618 /* Output stuff that Debug requires at the end of every file,
1619 and generate the VMS Debug debugging info. */
1622 vmsdbgout_finish (input_filename)
1623 const char *input_filename ATTRIBUTE_UNUSED;
1628 if (write_symbols == VMS_AND_DWARF2_DEBUG)
1629 (*dwarf2_debug_hooks.finish) (input_filename);
1631 if (debug_info_level == DINFO_LEVEL_NONE)
1634 /* Output a terminator label for the .text section. */
1636 ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, TEXT_END_LABEL, 0);
1638 /* Output debugging information.
1639 Warning! Do not change the name of the .vmsdebug section without
1640 changing it in the assembler also. */
1641 named_section (NULL_TREE, ".vmsdebug", 0);
1642 ASM_OUTPUT_ALIGN (asm_out_file, 0);
1644 totsize = write_modbeg (1);
1645 for (i = 1; i < func_table_in_use; i++)
1647 totsize += write_rtnbeg (i, 1);
1648 totsize += write_rtnend (i, 1);
1650 totsize += write_pclines (1);
1653 for (i = 1; i < func_table_in_use; i++)
1655 write_rtnbeg (i, 0);
1656 write_rtnend (i, 0);
1660 if (debug_info_level > DINFO_LEVEL_TERSE)
1662 totsize = write_srccorrs (1);
1666 totsize = write_modend (1);
1669 #endif /* VMS_DEBUGGING_INFO */