1 /* Process source files and output type information.
2 Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
3 Free Software Foundation, Inc.
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 3, or (at your option) any later
12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING3. If not see
19 <http://www.gnu.org/licenses/>. */
23 #include "errors.h" /* for fatal */
25 #include "double-int.h"
26 #include "version.h" /* for version_string & pkgversion_string. */
32 /* Data types, macros, etc. used only in this file. */
35 /* The list of output files. */
38 /* The output header file that is included into pretty much every
43 /* The name of the file containing the list of input files. */
44 static char *inputlist;
46 /* The plugin input files and their number; in that case only
47 a single file is produced. */
48 static input_file **plugin_files;
49 static size_t nb_plugin_files;
51 /* The generated plugin output file and name. */
52 static outf_p plugin_output;
53 static char *plugin_output_filename;
55 /* Our source directory and its length. */
59 /* Variables used for reading and writing the state. */
60 const char *read_state_filename;
61 const char *write_state_filename;
63 /* Variables to help debugging. */
67 /* Level for verbose messages. */
70 /* We have a type count and use it to set the state_number of newly
71 allocated types to some unique negative number. */
72 static int type_count;
74 /* The backup directory should be in the same file system as the
75 generated files, otherwise the rename(2) system call would fail.
76 If NULL, no backup is made when overwriting a generated file. */
77 static const char* backup_dir; /* (-B) program option. */
80 static outf_p create_file (const char *, const char *);
82 static const char *get_file_basename (const input_file *);
83 static const char *get_file_realbasename (const input_file *);
85 static int get_prefix_langdir_index (const char *);
86 static const char *get_file_langdir (const input_file *);
89 /* Nonzero iff an error has occurred. */
90 bool hit_error = false;
92 static void gen_rtx_next (void);
93 static void write_rtx_next (void);
94 static void open_base_files (void);
95 static void close_output_files (void);
97 /* Report an error at POS, printing MSG. */
100 error_at_line (const struct fileloc *pos, const char *msg, ...)
104 gcc_assert (pos != NULL && pos->file != NULL);
107 fprintf (stderr, "%s:%d: ", get_input_file_name (pos->file), pos->line);
108 vfprintf (stderr, msg, ap);
109 fputc ('\n', stderr);
115 /* asprintf, but produces fatal message on out-of-memory. */
117 xasprintf (const char *format, ...)
123 va_start (ap, format);
124 n = vasprintf (&result, format, ap);
125 if (result == NULL || n < 0)
126 fatal ("out of memory");
132 /* Input file handling. */
134 /* Table of all input files. */
135 const input_file **gt_files;
138 /* A number of places use the name of this "gengtype.c" file for a
139 location for things that we can't rely on the source to define.
140 Make sure we can still use pointer comparison on filenames. */
141 input_file* this_file;
142 /* The "system.h" file is likewise specially useful. */
143 input_file* system_h_file;
145 /* Vector of per-language directories. */
146 const char **lang_dir_names;
147 size_t num_lang_dirs;
149 /* An array of output files suitable for definitions. There is one
150 BASE_FILES entry for each language. */
151 static outf_p *base_files;
156 /* Utility debugging function, printing the various type counts within
157 a list of types. Called thru the DBGPRINT_COUNT_TYPE macro. */
159 dbgprint_count_type_at (const char *fil, int lin, const char *msg, type_p t)
161 int nb_types = 0, nb_scalar = 0, nb_string = 0;
162 int nb_struct = 0, nb_union = 0, nb_array = 0, nb_pointer = 0;
163 int nb_lang_struct = 0, nb_param_struct = 0;
165 for (p = t; p; p = p->next)
188 case TYPE_LANG_STRUCT:
191 case TYPE_PARAM_STRUCT:
198 fprintf (stderr, "\n" "%s:%d: %s: @@%%@@ %d types ::\n",
199 lbasename (fil), lin, msg, nb_types);
200 if (nb_scalar > 0 || nb_string > 0)
201 fprintf (stderr, "@@%%@@ %d scalars, %d strings\n", nb_scalar, nb_string);
202 if (nb_struct > 0 || nb_union > 0)
203 fprintf (stderr, "@@%%@@ %d structs, %d unions\n", nb_struct, nb_union);
204 if (nb_pointer > 0 || nb_array > 0)
205 fprintf (stderr, "@@%%@@ %d pointers, %d arrays\n", nb_pointer, nb_array);
206 if (nb_lang_struct > 0 || nb_param_struct > 0)
207 fprintf (stderr, "@@%%@@ %d lang_structs, %d param_structs\n",
208 nb_lang_struct, nb_param_struct);
209 fprintf (stderr, "\n");
211 #endif /* ENABLE_CHECKING */
213 /* Scan the input file, LIST, and determine how much space we need to
214 store strings in. Also, count the number of language directories
215 and files. The numbers returned are overestimates as they does not
216 consider repeated files. */
218 measure_input_list (FILE *list)
224 num_gt_files = plugin_files ? nb_plugin_files : 0;
225 while ((c = getc (list)) != EOF)
234 /* Add space for a lang_bitmap before the input file name. */
235 n += sizeof (lang_bitmap);
249 /* Read one input line from LIST to HEREP (which is updated). A
250 pointer to the string is returned via LINEP. If it was a language
251 subdirectory in square brackets, strip off the square brackets and
252 return true. Otherwise, leave space before the string for a
253 lang_bitmap, and return false. At EOF, returns false, does not
254 touch *HEREP, and sets *LINEP to NULL. POS is used for
257 read_input_line (FILE *list, char **herep, char **linep, struct fileloc *pos)
263 /* Read over whitespace. */
264 while (c == '\n' || c == ' ')
274 /* No space for a lang_bitmap is necessary. Discard the '['. */
277 while (c != ']' && c != '\n' && c != EOF)
286 c = getc (list); /* eat what should be a newline */
287 if (c != '\n' && c != EOF)
288 error_at_line (pos, "junk on line after language tag [%s]", line);
291 error_at_line (pos, "missing close bracket for language tag [%s",
300 /* Leave space for a lang_bitmap. */
301 memset (here, 0, sizeof (lang_bitmap));
302 here += sizeof (lang_bitmap);
309 while (c != EOF && c != '\n');
317 /* Read the list of input files from LIST and compute all of the
318 relevant tables. There is one file per line of the list. At
319 first, all the files on the list are language-generic, but
320 eventually a line will appear which is the name of a language
321 subdirectory in square brackets, like this: [cp]. All subsequent
322 files are specific to that language, until another language
323 subdirectory tag appears. Files can appear more than once, if
324 they apply to more than one language. */
326 read_input_list (const char *listname)
328 FILE *list = fopen (listname, "r");
330 fatal ("cannot open %s: %s", listname, xstrerror (errno));
334 size_t bufsz = measure_input_list (list);
335 char *buf = XNEWVEC (char, bufsz);
337 char *committed = buf;
338 char *limit = buf + bufsz;
343 lang_bitmap curlangs = (1 << num_lang_dirs) - 1;
345 epos.file = input_file_by_name (listname);
348 lang_dir_names = XNEWVEC (const char *, num_lang_dirs);
349 gt_files = XNEWVEC (const input_file *, num_gt_files);
356 is_language = read_input_line (list, &here, &line, &epos);
357 gcc_assert (here <= limit);
360 else if (is_language)
363 gcc_assert (langno <= num_lang_dirs);
364 for (i = 0; i < langno; i++)
365 if (strcmp (lang_dir_names[i], line) == 0)
367 error_at_line (&epos, "duplicate language tag [%s]",
374 curlangs = 1 << langno;
375 lang_dir_names[langno++] = line;
380 input_file *inpf = input_file_by_name (line);
381 gcc_assert (nfiles <= num_gt_files);
382 for (i = 0; i < nfiles; i++)
383 /* Since the input_file-s are uniquely hash-consed, we
384 can just compare pointers! */
385 if (gt_files[i] == inpf)
387 /* Throw away the string we just read, and add the
388 current language to the existing string's bitmap. */
389 lang_bitmap bmap = get_lang_bitmap (inpf);
391 error_at_line (&epos,
392 "file %s specified more than once "
393 "for language %s", line,
395 0 ? "(all)" : lang_dir_names[langno -
399 set_lang_bitmap (inpf, bmap);
404 set_lang_bitmap (inpf, curlangs);
405 gt_files[nfiles++] = inpf;
408 /* Update the global counts now that we know accurately how many
409 things there are. (We do not bother resizing the arrays down.) */
410 num_lang_dirs = langno;
411 /* Add the plugin files if provided. */
415 for (i = 0; i < nb_plugin_files; i++)
416 gt_files[nfiles++] = plugin_files[i];
418 num_gt_files = nfiles;
421 /* Sanity check: any file that resides in a language subdirectory
422 (e.g. 'cp') ought to belong to the corresponding language.
423 ??? Still true if for instance ObjC++ is enabled and C++ isn't?
424 (Can you even do that? Should you be allowed to?) */
427 for (f = 0; f < num_gt_files; f++)
429 lang_bitmap bitmap = get_lang_bitmap (gt_files[f]);
430 const char *basename = get_file_basename (gt_files[f]);
431 const char *slashpos = strchr (basename, '/');
436 for (l = 0; l < num_lang_dirs; l++)
437 if ((size_t) (slashpos - basename) == strlen (lang_dir_names[l])
438 && memcmp (basename, lang_dir_names[l],
439 strlen (lang_dir_names[l])) == 0)
441 if (!(bitmap & (1 << l)))
442 error ("%s is in language directory '%s' but is not "
443 "tagged for that language",
444 basename, lang_dir_names[l]);
452 fatal ("error reading %s: %s", listname, xstrerror (errno));
459 /* The one and only TYPE_STRING. */
461 struct type string_type = {
462 TYPE_STRING, 0, 0, 0, GC_USED, {0}
465 /* The two and only TYPE_SCALARs. Their u.scalar_is_char flags are
466 set early in main. */
468 struct type scalar_nonchar = {
469 TYPE_SCALAR, 0, 0, 0, GC_USED, {0}
472 struct type scalar_char = {
473 TYPE_SCALAR, 0, 0, 0, GC_USED, {0}
476 /* Lists of various things. */
480 type_p param_structs;
483 static type_p find_param_structure (type_p t, type_p param[NUM_PARAM]);
484 static type_p adjust_field_tree_exp (type_p t, options_p opt);
485 static type_p adjust_field_rtx_def (type_p t, options_p opt);
487 /* Define S as a typedef to T at POS. */
490 do_typedef (const char *s, type_p t, struct fileloc *pos)
494 /* temporary kludge - gengtype doesn't handle conditionals or
495 macros. Ignore any attempt to typedef CUMULATIVE_ARGS, unless it
496 is coming from this file (main() sets them up with safe dummy
498 if (!strcmp (s, "CUMULATIVE_ARGS") && pos->file != this_file)
501 for (p = typedefs; p != NULL; p = p->next)
502 if (strcmp (p->name, s) == 0)
506 error_at_line (pos, "type `%s' previously defined", s);
507 error_at_line (&p->line, "previously defined here");
512 p = XNEW (struct pair);
521 /* Define S as a typename of a scalar. Cannot be used to define
522 typedefs of 'char'. Note: is also used for pointer-to-function
523 typedefs (which are therefore not treated as pointers). */
526 do_scalar_typedef (const char *s, struct fileloc *pos)
528 do_typedef (s, &scalar_nonchar, pos);
531 /* Return the type previously defined for S. Use POS to report errors. */
534 resolve_typedef (const char *s, struct fileloc *pos)
537 for (p = typedefs; p != NULL; p = p->next)
538 if (strcmp (p->name, s) == 0)
540 error_at_line (pos, "unidentified type `%s'", s);
541 return &scalar_nonchar; /* treat as "int" */
544 /* Create and return a new structure with tag NAME (or a union iff
545 ISUNION is nonzero), at POS with fields FIELDS and options O. */
548 new_structure (const char *name, int isunion, struct fileloc *pos,
549 pair_p fields, options_p o)
553 lang_bitmap bitmap = get_lang_bitmap (pos->file);
555 for (si = structures; si != NULL; si = si->next)
556 if (strcmp (name, si->u.s.tag) == 0 && UNION_P (si) == isunion)
559 if (si->kind == TYPE_LANG_STRUCT)
563 for (si = ls->u.s.lang_struct; si != NULL; si = si->next)
564 if (si->u.s.bitmap == bitmap)
567 else if (si->u.s.line.file != NULL && si->u.s.bitmap != bitmap)
571 si = XCNEW (struct type);
572 memcpy (si, ls, sizeof (struct type));
573 ls->kind = TYPE_LANG_STRUCT;
574 ls->u.s.lang_struct = si;
575 ls->u.s.fields = NULL;
577 si->state_number = -type_count;
578 si->pointer_to = NULL;
579 si->u.s.lang_struct = ls;
584 if (ls != NULL && s == NULL)
587 s = XCNEW (struct type);
588 s->state_number = -type_count;
589 s->next = ls->u.s.lang_struct;
590 ls->u.s.lang_struct = s;
591 s->u.s.lang_struct = ls;
599 s = XCNEW (struct type);
600 s->state_number = -type_count;
601 s->next = structures;
605 if (s->u.s.line.file != NULL
606 || (s->u.s.lang_struct && (s->u.s.lang_struct->u.s.bitmap & bitmap)))
608 error_at_line (pos, "duplicate definition of '%s %s'",
609 isunion ? "union" : "struct", s->u.s.tag);
610 error_at_line (&s->u.s.line, "previous definition here");
613 s->kind = isunion ? TYPE_UNION : TYPE_STRUCT;
616 s->u.s.fields = fields;
618 s->u.s.bitmap = bitmap;
619 if (s->u.s.lang_struct)
620 s->u.s.lang_struct->u.s.bitmap |= bitmap;
625 /* Return the previously-defined structure with tag NAME (or a union
626 iff ISUNION is nonzero), or a new empty structure or union if none
627 was defined previously. */
630 find_structure (const char *name, int isunion)
634 for (s = structures; s != NULL; s = s->next)
635 if (strcmp (name, s->u.s.tag) == 0 && UNION_P (s) == isunion)
639 s = XCNEW (struct type);
640 s->next = structures;
641 s->state_number = -type_count;
643 s->kind = isunion ? TYPE_UNION : TYPE_STRUCT;
649 /* Return the previously-defined parameterized structure for structure
650 T and parameters PARAM, or a new parameterized empty structure or
651 union if none was defined previously. */
654 find_param_structure (type_p t, type_p param[NUM_PARAM])
658 for (res = param_structs; res; res = res->next)
659 if (res->u.param_struct.stru == t
660 && memcmp (res->u.param_struct.param, param,
661 sizeof (type_p) * NUM_PARAM) == 0)
666 res = XCNEW (struct type);
667 res->kind = TYPE_PARAM_STRUCT;
668 res->next = param_structs;
669 res->state_number = -type_count;
671 res->u.param_struct.stru = t;
672 memcpy (res->u.param_struct.param, param, sizeof (type_p) * NUM_PARAM);
677 /* Return a scalar type with name NAME. */
680 create_scalar_type (const char *name)
682 if (!strcmp (name, "char") || !strcmp (name, "unsigned char"))
685 return &scalar_nonchar;
688 /* Return a pointer to T. */
691 create_pointer (type_p t)
695 type_p r = XCNEW (struct type);
697 r->state_number = -type_count;
698 r->kind = TYPE_POINTER;
702 return t->pointer_to;
705 /* Return an array of length LEN. */
708 create_array (type_p t, const char *len)
713 v = XCNEW (struct type);
714 v->kind = TYPE_ARRAY;
715 v->state_number = -type_count;
721 /* Return a string options structure with name NAME and info INFO.
722 NEXT is the next option in the chain. */
724 create_string_option (options_p next, const char *name, const char *info)
726 options_p o = XNEW (struct options);
727 o->kind = OPTION_STRING;
730 o->info.string = info;
734 /* Create a type options structure with name NAME and info INFO. NEXT
735 is the next option in the chain. */
737 create_type_option (options_p next, const char* name, type_p info)
739 options_p o = XNEW (struct options);
742 o->kind = OPTION_TYPE;
747 /* Create a nested pointer options structure with name NAME and info
748 INFO. NEXT is the next option in the chain. */
750 create_nested_option (options_p next, const char* name,
751 struct nested_ptr_data* info)
754 o = XNEW (struct options);
757 o->kind = OPTION_NESTED;
758 o->info.nested = info;
762 /* Return an options structure for a "nested_ptr" option. */
764 create_nested_ptr_option (options_p next, type_p t,
765 const char *to, const char *from)
767 struct nested_ptr_data *d = XNEW (struct nested_ptr_data);
769 d->type = adjust_field_type (t, 0);
771 d->convert_from = from;
772 return create_nested_option (next, "nested_ptr", d);
775 /* Add a variable named S of type T with options O defined at POS,
778 note_variable (const char *s, type_p t, options_p o, struct fileloc *pos)
781 n = XNEW (struct pair);
790 /* Most-general structure field creator. */
792 create_field_all (pair_p next, type_p type, const char *name, options_p opt,
793 const input_file *inpf, int line)
797 field = XNEW (struct pair);
802 field->line.file = inpf;
803 field->line.line = line;
807 /* Create a field that came from the source code we are scanning,
808 i.e. we have a 'struct fileloc', and possibly options; also,
809 adjust_field_type should be called. */
811 create_field_at (pair_p next, type_p type, const char *name, options_p opt,
814 return create_field_all (next, adjust_field_type (type, opt),
815 name, opt, pos->file, pos->line);
818 /* Create a fake field with the given type and name. NEXT is the next
819 field in the chain. */
820 #define create_field(next,type,name) \
821 create_field_all(next,type,name, 0, this_file, __LINE__)
823 /* Like create_field, but the field is only valid when condition COND
827 create_optional_field_ (pair_p next, type_p type, const char *name,
828 const char *cond, int line)
834 /* Create a fake union type with a single nameless field of type TYPE.
835 The field has a tag of "1". This allows us to make the presence
836 of a field of type TYPE depend on some boolean "desc" being true. */
837 union_fields = create_field (NULL, type, "");
839 create_string_option (union_fields->opt, "dot", "");
841 create_string_option (union_fields->opt, "tag", "1");
843 new_structure (xasprintf ("%s_%d", "fake_union", id++), 1,
844 &lexer_line, union_fields, NULL);
846 /* Create the field and give it the new fake union type. Add a "desc"
847 tag that specifies the condition under which the field is valid. */
848 return create_field_all (next, union_type, name,
849 create_string_option (0, "desc", cond),
853 #define create_optional_field(next,type,name,cond) \
854 create_optional_field_(next,type,name,cond,__LINE__)
856 /* Reverse a linked list of 'struct pair's in place. */
858 nreverse_pairs (pair_p list)
860 pair_p prev = 0, p, next;
861 for (p = list; p; p = next)
871 /* We don't care how long a CONST_DOUBLE is. */
872 #define CONST_DOUBLE_FORMAT "ww"
873 /* We don't want to see codes that are only for generator files. */
874 #undef GENERATOR_FILE
878 #define DEF_RTL_EXPR(ENUM, NAME, FORMAT, CLASS) ENUM ,
884 static const char *const rtx_name[NUM_RTX_CODE] = {
885 #define DEF_RTL_EXPR(ENUM, NAME, FORMAT, CLASS) NAME ,
890 static const char *const rtx_format[NUM_RTX_CODE] = {
891 #define DEF_RTL_EXPR(ENUM, NAME, FORMAT, CLASS) FORMAT ,
896 static int rtx_next_new[NUM_RTX_CODE];
898 /* We also need codes and names for insn notes (not register notes).
899 Note that we do *not* bias the note values here. */
902 #define DEF_INSN_NOTE(NAME) NAME,
903 #include "insn-notes.def"
909 /* We must allocate one more entry here, as we use NOTE_INSN_MAX as the
910 default field for line number notes. */
911 static const char *const note_insn_name[NOTE_INSN_MAX + 1] = {
912 #define DEF_INSN_NOTE(NAME) #NAME,
913 #include "insn-notes.def"
917 #undef CONST_DOUBLE_FORMAT
918 #define GENERATOR_FILE
920 /* Generate the contents of the rtx_next array. This really doesn't belong
921 in gengtype at all, but it's needed for adjust_field_rtx_def. */
927 for (i = 0; i < NUM_RTX_CODE; i++)
931 rtx_next_new[i] = -1;
932 if (strncmp (rtx_format[i], "iuu", 3) == 0)
934 else if (i == COND_EXEC || i == SET || i == EXPR_LIST || i == INSN_LIST)
937 for (k = strlen (rtx_format[i]) - 1; k >= 0; k--)
938 if (rtx_format[i][k] == 'e' || rtx_format[i][k] == 'u')
943 /* Write out the contents of the rtx_next array. */
945 write_rtx_next (void)
947 outf_p f = get_output_file_with_visibility (NULL);
952 oprintf (f, "\n/* Used to implement the RTX_NEXT macro. */\n");
953 oprintf (f, "EXPORTED_CONST unsigned char rtx_next[NUM_RTX_CODE] = {\n");
954 for (i = 0; i < NUM_RTX_CODE; i++)
955 if (rtx_next_new[i] == -1)
956 oprintf (f, " 0,\n");
959 " RTX_HDR_SIZE + %d * sizeof (rtunion),\n", rtx_next_new[i]);
963 /* Handle `special("rtx_def")'. This is a special case for field
964 `fld' of struct rtx_def, which is an array of unions whose values
965 are based in a complex way on the type of RTL. */
968 adjust_field_rtx_def (type_p t, options_p ARG_UNUSED (opt))
973 type_p rtx_tp, rtvec_tp, tree_tp, mem_attrs_tp, note_union_tp, scalar_tp;
974 type_p basic_block_tp, reg_attrs_tp, constant_tp, symbol_union_tp;
976 if (t->kind != TYPE_UNION)
978 error_at_line (&lexer_line,
979 "special `rtx_def' must be applied to a union");
983 nodot = create_string_option (NULL, "dot", "");
985 rtx_tp = create_pointer (find_structure ("rtx_def", 0));
986 rtvec_tp = create_pointer (find_structure ("rtvec_def", 0));
987 tree_tp = create_pointer (find_structure ("tree_node", 1));
988 mem_attrs_tp = create_pointer (find_structure ("mem_attrs", 0));
990 create_pointer (find_structure ("reg_attrs", 0));
992 create_pointer (find_structure ("basic_block_def", 0));
994 create_pointer (find_structure ("constant_descriptor_rtx", 0));
995 scalar_tp = &scalar_nonchar; /* rtunion int */
998 pair_p note_flds = NULL;
1001 for (c = 0; c <= NOTE_INSN_MAX; c++)
1006 case NOTE_INSN_DELETED_LABEL:
1007 note_flds = create_field (note_flds, &string_type, "rt_str");
1010 case NOTE_INSN_BLOCK_BEG:
1011 case NOTE_INSN_BLOCK_END:
1012 note_flds = create_field (note_flds, tree_tp, "rt_tree");
1015 case NOTE_INSN_VAR_LOCATION:
1016 note_flds = create_field (note_flds, rtx_tp, "rt_rtx");
1020 note_flds = create_field (note_flds, scalar_tp, "rt_int");
1023 /* NOTE_INSN_MAX is used as the default field for line
1025 if (c == NOTE_INSN_MAX)
1027 create_string_option (nodot, "default", "");
1030 create_string_option (nodot, "tag", note_insn_name[c]);
1032 note_union_tp = new_structure ("rtx_def_note_subunion", 1,
1033 &lexer_line, note_flds, NULL);
1035 /* Create a type to represent the various forms of SYMBOL_REF_DATA. */
1038 sym_flds = create_field (NULL, tree_tp, "rt_tree");
1039 sym_flds->opt = create_string_option (nodot, "default", "");
1040 sym_flds = create_field (sym_flds, constant_tp, "rt_constant");
1041 sym_flds->opt = create_string_option (nodot, "tag", "1");
1042 symbol_union_tp = new_structure ("rtx_def_symbol_subunion", 1,
1043 &lexer_line, sym_flds, NULL);
1045 for (i = 0; i < NUM_RTX_CODE; i++)
1047 pair_p subfields = NULL;
1048 size_t aindex, nmindex;
1053 for (aindex = 0; aindex < strlen (rtx_format[i]); aindex++)
1056 const char *subname;
1058 switch (rtx_format[i][aindex])
1069 if (i == MEM && aindex == 1)
1070 t = mem_attrs_tp, subname = "rt_mem";
1071 else if (i == JUMP_INSN && aindex == 8)
1072 t = rtx_tp, subname = "rt_rtx";
1073 else if (i == CODE_LABEL && aindex == 5)
1074 t = scalar_tp, subname = "rt_int";
1075 else if (i == CODE_LABEL && aindex == 4)
1076 t = rtx_tp, subname = "rt_rtx";
1077 else if (i == LABEL_REF && (aindex == 1 || aindex == 2))
1078 t = rtx_tp, subname = "rt_rtx";
1079 else if (i == NOTE && aindex == 4)
1080 t = note_union_tp, subname = "";
1081 else if (i == NOTE && aindex == 5)
1082 t = scalar_tp, subname = "rt_int";
1083 else if (i == NOTE && aindex >= 7)
1084 t = scalar_tp, subname = "rt_int";
1085 else if (i == ADDR_DIFF_VEC && aindex == 4)
1086 t = scalar_tp, subname = "rt_int";
1087 else if (i == VALUE && aindex == 0)
1088 t = scalar_tp, subname = "rt_int";
1089 else if (i == DEBUG_EXPR && aindex == 0)
1090 t = tree_tp, subname = "rt_tree";
1091 else if (i == REG && aindex == 1)
1092 t = scalar_tp, subname = "rt_int";
1093 else if (i == REG && aindex == 2)
1094 t = reg_attrs_tp, subname = "rt_reg";
1095 else if (i == SCRATCH && aindex == 0)
1096 t = scalar_tp, subname = "rt_int";
1097 else if (i == SYMBOL_REF && aindex == 1)
1098 t = scalar_tp, subname = "rt_int";
1099 else if (i == SYMBOL_REF && aindex == 2)
1100 t = symbol_union_tp, subname = "";
1101 else if (i == BARRIER && aindex >= 3)
1102 t = scalar_tp, subname = "rt_int";
1107 "rtx type `%s' has `0' in position %lu, can't handle",
1108 rtx_name[i], (unsigned long) aindex);
1130 subname = "rt_rtvec";
1135 subname = "rt_tree";
1146 "rtx type `%s' has `%c' in position %lu, can't handle",
1147 rtx_name[i], rtx_format[i][aindex],
1148 (unsigned long) aindex);
1154 subfields = create_field (subfields, t,
1155 xasprintf (".fld[%lu].%s",
1156 (unsigned long) aindex,
1158 subfields->opt = nodot;
1159 if (t == note_union_tp)
1161 create_string_option (subfields->opt, "desc",
1163 if (t == symbol_union_tp)
1165 create_string_option (subfields->opt, "desc",
1166 "CONSTANT_POOL_ADDRESS_P (&%0)");
1169 if (i == SYMBOL_REF)
1171 /* Add the "block_sym" field if SYMBOL_REF_HAS_BLOCK_INFO_P
1173 type_p field_tp = find_structure ("block_symbol", 0);
1175 = create_optional_field (subfields, field_tp, "block_sym",
1176 "SYMBOL_REF_HAS_BLOCK_INFO_P (&%0)");
1179 sname = xasprintf ("rtx_def_%s", rtx_name[i]);
1180 substruct = new_structure (sname, 0, &lexer_line, subfields, NULL);
1182 ftag = xstrdup (rtx_name[i]);
1183 for (nmindex = 0; nmindex < strlen (ftag); nmindex++)
1184 ftag[nmindex] = TOUPPER (ftag[nmindex]);
1185 flds = create_field (flds, substruct, "");
1186 flds->opt = create_string_option (nodot, "tag", ftag);
1188 return new_structure ("rtx_def_subunion", 1, &lexer_line, flds, nodot);
1191 /* Handle `special("tree_exp")'. This is a special case for
1192 field `operands' of struct tree_exp, which although it claims to contain
1193 pointers to trees, actually sometimes contains pointers to RTL too.
1194 Passed T, the old type of the field, and OPT its options. Returns
1195 a new type for the field. */
1198 adjust_field_tree_exp (type_p t, options_p opt ATTRIBUTE_UNUSED)
1203 if (t->kind != TYPE_ARRAY)
1205 error_at_line (&lexer_line,
1206 "special `tree_exp' must be applied to an array");
1207 return &string_type;
1210 nodot = create_string_option (NULL, "dot", "");
1212 flds = create_field (NULL, t, "");
1213 flds->opt = create_string_option (nodot, "length",
1214 "TREE_OPERAND_LENGTH ((tree) &%0)");
1215 flds->opt = create_string_option (flds->opt, "default", "");
1217 return new_structure ("tree_exp_subunion", 1, &lexer_line, flds, nodot);
1220 /* Perform any special processing on a type T, about to become the type
1221 of a field. Return the appropriate type for the field.
1223 - Converts pointer-to-char, with no length parameter, to TYPE_STRING;
1224 - Similarly for arrays of pointer-to-char;
1225 - Converts structures for which a parameter is provided to
1227 - Handles "special" options.
1231 adjust_field_type (type_p t, options_p opt)
1234 const int pointer_p = t->kind == TYPE_POINTER;
1235 type_p params[NUM_PARAM];
1239 for (i = 0; i < NUM_PARAM; i++)
1242 for (; opt; opt = opt->next)
1243 if (strcmp (opt->name, "length") == 0)
1245 else if ((strcmp (opt->name, "param_is") == 0
1246 || (strncmp (opt->name, "param", 5) == 0
1247 && ISDIGIT (opt->name[5])
1248 && strcmp (opt->name + 6, "_is") == 0))
1249 && opt->kind == OPTION_TYPE)
1251 int num = ISDIGIT (opt->name[5]) ? opt->name[5] - '0' : 0;
1253 if (!UNION_OR_STRUCT_P (t)
1254 && (t->kind != TYPE_POINTER || !UNION_OR_STRUCT_P (t->u.p)))
1256 error_at_line (&lexer_line,
1257 "option `%s' may only be applied to structures or structure pointers",
1263 if (params[num] != NULL)
1264 error_at_line (&lexer_line, "duplicate `%s' option", opt->name);
1265 if (!ISDIGIT (opt->name[5]))
1266 params[num] = create_pointer (opt->info.type);
1268 params[num] = opt->info.type;
1270 else if (strcmp (opt->name, "special") == 0
1271 && opt->kind == OPTION_STRING)
1273 const char *special_name = opt->info.string;
1274 if (strcmp (special_name, "tree_exp") == 0)
1275 t = adjust_field_tree_exp (t, opt);
1276 else if (strcmp (special_name, "rtx_def") == 0)
1277 t = adjust_field_rtx_def (t, opt);
1279 error_at_line (&lexer_line, "unknown special `%s'", special_name);
1288 realt = find_param_structure (t, params);
1289 t = pointer_p ? create_pointer (realt) : realt;
1293 && pointer_p && t->u.p->kind == TYPE_SCALAR && t->u.p->u.scalar_is_char)
1294 return &string_type;
1295 if (t->kind == TYPE_ARRAY && t->u.a.p->kind == TYPE_POINTER
1296 && t->u.a.p->u.p->kind == TYPE_SCALAR
1297 && t->u.a.p->u.p->u.scalar_is_char)
1298 return create_array (&string_type, t->u.a.len);
1304 static void set_gc_used_type (type_p, enum gc_used_enum, type_p *);
1305 static void set_gc_used (pair_p);
1307 /* Handle OPT for set_gc_used_type. */
1310 process_gc_options (options_p opt, enum gc_used_enum level, int *maybe_undef,
1311 int *pass_param, int *length, int *skip,
1315 for (o = opt; o; o = o->next)
1316 if (strcmp (o->name, "ptr_alias") == 0 && level == GC_POINTED_TO
1317 && o->kind == OPTION_TYPE)
1318 set_gc_used_type (o->info.type,
1319 GC_POINTED_TO, NULL);
1320 else if (strcmp (o->name, "maybe_undef") == 0)
1322 else if (strcmp (o->name, "use_params") == 0)
1324 else if (strcmp (o->name, "length") == 0)
1326 else if (strcmp (o->name, "skip") == 0)
1328 else if (strcmp (o->name, "nested_ptr") == 0
1329 && o->kind == OPTION_NESTED)
1330 *nested_ptr = ((const struct nested_ptr_data *) o->info.nested)->type;
1334 /* Set the gc_used field of T to LEVEL, and handle the types it references. */
1336 set_gc_used_type (type_p t, enum gc_used_enum level, type_p param[NUM_PARAM])
1338 if (t->gc_used >= level)
1352 process_gc_options (t->u.s.opt, level, &dummy, &dummy, &dummy, &dummy,
1355 for (f = t->u.s.fields; f; f = f->next)
1357 int maybe_undef = 0;
1361 type_p nested_ptr = NULL;
1362 process_gc_options (f->opt, level, &maybe_undef, &pass_param,
1363 &length, &skip, &nested_ptr);
1365 if (nested_ptr && f->type->kind == TYPE_POINTER)
1366 set_gc_used_type (nested_ptr, GC_POINTED_TO,
1367 pass_param ? param : NULL);
1368 else if (length && f->type->kind == TYPE_POINTER)
1369 set_gc_used_type (f->type->u.p, GC_USED, NULL);
1370 else if (maybe_undef && f->type->kind == TYPE_POINTER)
1371 set_gc_used_type (f->type->u.p, GC_MAYBE_POINTED_TO, NULL);
1372 else if (pass_param && f->type->kind == TYPE_POINTER && param)
1373 set_gc_used_type (find_param_structure (f->type->u.p, param),
1374 GC_POINTED_TO, NULL);
1376 ; /* target type is not used through this field */
1378 set_gc_used_type (f->type, GC_USED, pass_param ? param : NULL);
1384 set_gc_used_type (t->u.p, GC_POINTED_TO, NULL);
1388 set_gc_used_type (t->u.a.p, GC_USED, param);
1391 case TYPE_LANG_STRUCT:
1392 for (t = t->u.s.lang_struct; t; t = t->next)
1393 set_gc_used_type (t, level, param);
1396 case TYPE_PARAM_STRUCT:
1399 for (i = 0; i < NUM_PARAM; i++)
1400 if (t->u.param_struct.param[i] != 0)
1401 set_gc_used_type (t->u.param_struct.param[i], GC_USED, NULL);
1403 if (t->u.param_struct.stru->gc_used == GC_POINTED_TO)
1404 level = GC_POINTED_TO;
1407 t->u.param_struct.stru->gc_used = GC_UNUSED;
1408 set_gc_used_type (t->u.param_struct.stru, level,
1409 t->u.param_struct.param);
1417 /* Set the gc_used fields of all the types pointed to by VARIABLES. */
1420 set_gc_used (pair_p variables)
1424 for (p = variables; p; p = p->next)
1426 set_gc_used_type (p->type, GC_USED, NULL);
1429 if (verbosity_level >= 2)
1430 printf ("%s used %d GTY-ed variables\n", progname, nbvars);
1433 /* File mapping routines. For each input file, there is one output .c file
1434 (but some output files have many input files), and there is one .h file
1435 for the whole build. */
1437 /* Output file handling. */
1439 /* Create and return an outf_p for a new file for NAME, to be called
1443 create_file (const char *name, const char *oname)
1445 static const char *const hdr[] = {
1446 " Copyright (C) 2004, 2007, 2009 Free Software Foundation, Inc.\n",
1448 "This file is part of GCC.\n",
1450 "GCC is free software; you can redistribute it and/or modify it under\n",
1451 "the terms of the GNU General Public License as published by the Free\n",
1452 "Software Foundation; either version 3, or (at your option) any later\n",
1455 "GCC is distributed in the hope that it will be useful, but WITHOUT ANY\n",
1456 "WARRANTY; without even the implied warranty of MERCHANTABILITY or\n",
1457 "FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License\n",
1458 "for more details.\n",
1460 "You should have received a copy of the GNU General Public License\n",
1461 "along with GCC; see the file COPYING3. If not see\n",
1462 "<http://www.gnu.org/licenses/>. */\n",
1464 "/* This file is machine generated. Do not edit. */\n"
1469 gcc_assert (name != NULL);
1470 gcc_assert (oname != NULL);
1471 f = XCNEW (struct outf);
1472 f->next = output_files;
1476 oprintf (f, "/* Type information for %s.\n", name);
1477 for (i = 0; i < ARRAY_SIZE (hdr); i++)
1478 oprintf (f, "%s", hdr[i]);
1482 /* Print, like fprintf, to O.
1483 N.B. You might think this could be implemented more efficiently
1484 with vsnprintf(). Unfortunately, there are C libraries that
1485 provide that function but without the C99 semantics for its return
1486 value, making it impossible to know how much space is required. */
1488 oprintf (outf_p o, const char *format, ...)
1494 /* In plugin mode, the O could be a NULL pointer, so avoid crashing
1499 va_start (ap, format);
1500 slength = vasprintf (&s, format, ap);
1501 if (s == NULL || (int) slength < 0)
1502 fatal ("out of memory");
1505 if (o->bufused + slength > o->buflength)
1507 size_t new_len = o->buflength;
1514 while (o->bufused + slength >= new_len);
1515 o->buf = XRESIZEVEC (char, o->buf, new_len);
1516 o->buflength = new_len;
1518 memcpy (o->buf + o->bufused, s, slength);
1519 o->bufused += slength;
1523 /* Open the global header file and the language-specific header files. */
1526 open_base_files (void)
1530 if (nb_plugin_files > 0 && plugin_files)
1533 header_file = create_file ("GCC", "gtype-desc.h");
1535 base_files = XNEWVEC (outf_p, num_lang_dirs);
1537 for (i = 0; i < num_lang_dirs; i++)
1538 base_files[i] = create_file (lang_dir_names[i],
1539 xasprintf ("gtype-%s.h", lang_dir_names[i]));
1541 /* gtype-desc.c is a little special, so we create it here. */
1543 /* The order of files here matters very much. */
1544 static const char *const ifiles[] = {
1545 "config.h", "system.h", "coretypes.h", "tm.h",
1546 "hashtab.h", "splay-tree.h", "obstack.h", "bitmap.h", "input.h",
1547 "tree.h", "rtl.h", "function.h", "insn-config.h", "expr.h",
1548 "hard-reg-set.h", "basic-block.h", "cselib.h", "insn-addr.h",
1549 "optabs.h", "libfuncs.h", "debug.h", "ggc.h", "cgraph.h",
1550 "tree-flow.h", "reload.h", "cpp-id-data.h", "tree-chrec.h",
1551 "cfglayout.h", "except.h", "output.h", "gimple.h", "cfgloop.h",
1552 "target.h", "ipa-prop.h", "lto-streamer.h", "target-globals.h", NULL
1554 const char *const *ifp;
1555 outf_p gtype_desc_c;
1557 gtype_desc_c = create_file ("GCC", "gtype-desc.c");
1558 for (ifp = ifiles; *ifp; ifp++)
1559 oprintf (gtype_desc_c, "#include \"%s\"\n", *ifp);
1561 /* Make sure we handle "cfun" specially. */
1562 oprintf (gtype_desc_c, "\n/* See definition in function.h. */\n");
1563 oprintf (gtype_desc_c, "#undef cfun\n");
1567 /* For INPF an input file, return the real basename of INPF, with all
1568 the directory components skipped. */
1571 get_file_realbasename (const input_file *inpf)
1573 const char *f = get_input_file_name (inpf);
1574 const char *lastslash = strrchr (f, '/');
1576 return (lastslash != NULL) ? lastslash + 1 : f;
1579 /* For INPF a filename, return the relative path to INPF from
1580 $(srcdir) if the latter is a prefix in INPF, NULL otherwise. */
1583 get_file_srcdir_relative_path (const input_file *inpf)
1585 const char *f = get_input_file_name (inpf);
1586 if (strlen (f) > srcdir_len
1587 && IS_DIR_SEPARATOR (f[srcdir_len])
1588 && strncmp (f, srcdir, srcdir_len) == 0)
1589 return f + srcdir_len + 1;
1594 /* For INPF an input_file, return the relative path to INPF from
1595 $(srcdir) if the latter is a prefix in INPF, or the real basename
1596 of INPF otherwise. */
1599 get_file_basename (const input_file *inpf)
1601 const char *srcdir_path = get_file_srcdir_relative_path (inpf);
1603 return (srcdir_path != NULL) ? srcdir_path : get_file_realbasename (inpf);
1606 /* For F a filename, return the lang_dir_names relative index of the language
1607 directory that is a prefix in F, if any, -1 otherwise. */
1610 get_prefix_langdir_index (const char *f)
1612 size_t f_len = strlen (f);
1615 for (lang_index = 0; lang_index < num_lang_dirs; lang_index++)
1617 const char *langdir = lang_dir_names[lang_index];
1618 size_t langdir_len = strlen (langdir);
1620 if (f_len > langdir_len
1621 && IS_DIR_SEPARATOR (f[langdir_len])
1622 && memcmp (f, langdir, langdir_len) == 0)
1629 /* For INPF an input file, return the name of language directory where
1630 F is located, if any, NULL otherwise. */
1633 get_file_langdir (const input_file *inpf)
1635 /* Get the relative path to INPF from $(srcdir) and find the
1636 language by comparing the prefix with language directory names.
1637 If INPF is not even srcdir relative, no point in looking
1641 const char *srcdir_relative_path = get_file_srcdir_relative_path (inpf);
1644 if (!srcdir_relative_path)
1647 lang_index = get_prefix_langdir_index (srcdir_relative_path);
1648 if (lang_index < 0 && strncmp (srcdir_relative_path, "c-family", 8) == 0)
1650 else if (lang_index >= 0)
1651 r = lang_dir_names[lang_index];
1658 /* The gt- output file name for INPF. */
1661 get_file_gtfilename (const input_file *inpf)
1663 /* Cook up an initial version of the gt- file name from the file real
1664 basename and the language name, if any. */
1666 const char *basename = get_file_realbasename (inpf);
1667 const char *langdir = get_file_langdir (inpf);
1670 (langdir ? xasprintf ("gt-%s-%s", langdir, basename)
1671 : xasprintf ("gt-%s", basename));
1673 /* Then replace all non alphanumerics characters by '-' and change the
1674 extension to ".h". We expect the input filename extension was at least
1675 one character long. */
1679 for (; *s != '.'; s++)
1680 if (!ISALNUM (*s) && *s != '-')
1683 memcpy (s, ".h", sizeof (".h"));
1688 /* Each input_file has its associated output file outf_p. The
1689 association is computed by the function
1690 get_output_file_with_visibility. The associated file is cached
1691 inside input_file in its inpoutf field, so is really computed only
1692 once. Associated output file paths (i.e. output_name-s) are
1693 computed by a rule based regexp machinery, using the files_rules
1694 array of struct file_rule_st. A for_name is also computed, giving
1695 the source file name for which the output_file is generated; it is
1696 often the last component of the input_file path. */
1700 Regexpr machinery to compute the output_name and for_name-s of each
1701 input_file. We have a sequence of file rules which gives the POSIX
1702 extended regular expression to match an input file path, and two
1703 transformed strings for the corresponding output_name and the
1704 corresponding for_name. The transformed string contain dollars: $0
1705 is replaced by the entire match, $1 is replaced by the substring
1706 matching the first parenthesis in the regexp, etc. And $$ is replaced
1707 by a single verbatim dollar. The rule order is important. The
1708 general case is last, and the particular cases should come before.
1709 An action routine can, when needed, update the out_name & for_name
1710 and/or return the appropriate output file. It is invoked only when a
1711 rule is triggered. When a rule is triggered, the output_name and
1712 for_name are computed using their transform string in while $$, $0,
1713 $1, ... are suitably replaced. If there is an action, it is called.
1714 In some few cases, the action can directly return the outf_p, but
1715 usually it just updates the output_name and for_name so should free
1716 them before replacing them. The get_output_file_with_visibility
1717 function creates an outf_p only once per each output_name, so it
1718 scans the output_files list for previously seen output file names.
1721 /* Signature of actions in file rules. */
1722 typedef outf_p (frul_actionrout_t) (input_file*, char**, char**);
1725 struct file_rule_st {
1726 const char* frul_srcexpr; /* Source string for regexp. */
1727 int frul_rflags; /* Flags passed to regcomp, usually
1729 regex_t* frul_re; /* Compiled regular expression
1730 obtained by regcomp. */
1731 const char* frul_tr_out; /* Transformation string for making
1732 * the output_name, with $1 ... $9 for
1733 * subpatterns and $0 for the whole
1734 * matched filename. */
1735 const char* frul_tr_for; /* Tranformation string for making the
1737 frul_actionrout_t* frul_action; /* The action, if non null, is
1738 * called once the rule matches, on
1739 * the transformed out_name &
1740 * for_name. It could change them
1741 * and/or give the output file. */
1744 /* File rule action handling *.h files. */
1745 static outf_p header_dot_h_frul (input_file*, char**, char**);
1747 /* File rule action handling *.c files. */
1748 static outf_p source_dot_c_frul (input_file*, char**, char**);
1750 #define NULL_REGEX (regex_t*)0
1752 /* The prefix in our regexp-s matching the directory. */
1753 #define DIR_PREFIX_REGEX "^(([^/]*/)*)"
1755 #define NULL_FRULACT (frul_actionrout_t*)0
1757 /* The array of our rules governing file name generation. Rules order
1758 matters, so change with extreme care! */
1760 struct file_rule_st files_rules[] = {
1761 /* the c-family/ source directory is special. */
1762 { DIR_PREFIX_REGEX "c-family/([[:alnum:]_-]*)\\.c$",
1763 REG_EXTENDED, NULL_REGEX,
1764 "gt-c-family-$3.h", "c-family/$3.c", NULL_FRULACT},
1766 { DIR_PREFIX_REGEX "c-family/([[:alnum:]_-]*)\\.h$",
1767 REG_EXTENDED, NULL_REGEX,
1768 "gt-c-family-$3.h", "c-family/$3.h", NULL_FRULACT},
1770 /* Both c-lang.h & c-tree.h gives gt-c-decl.h for c-decl.c ! */
1771 { DIR_PREFIX_REGEX "c-lang\\.h$",
1772 REG_EXTENDED, NULL_REGEX, "gt-c-decl.h", "c-decl.c", NULL_FRULACT},
1774 { DIR_PREFIX_REGEX "c-tree\\.h$",
1775 REG_EXTENDED, NULL_REGEX, "gt-c-decl.h", "c-decl.c", NULL_FRULACT},
1777 /* cp/cp-tree.h gives gt-cp-tree.h for cp/tree.c ! */
1778 { DIR_PREFIX_REGEX "cp/cp-tree\\.h$",
1779 REG_EXTENDED, NULL_REGEX,
1780 "gt-cp-tree.h", "cp/tree.c", NULL_FRULACT },
1782 /* cp/decl.h & cp/decl.c gives gt-cp-decl.h for cp/decl.c ! */
1783 { DIR_PREFIX_REGEX "cp/decl\\.[ch]$",
1784 REG_EXTENDED, NULL_REGEX,
1785 "gt-cp-decl.h", "cp/decl.c", NULL_FRULACT },
1787 /* cp/name-lookup.h gives gt-cp-name-lookup.h for cp/name-lookup.c ! */
1788 { DIR_PREFIX_REGEX "cp/name-lookup\\.h$",
1789 REG_EXTENDED, NULL_REGEX,
1790 "gt-cp-name-lookup.h", "cp/name-lookup.c", NULL_FRULACT },
1792 /* objc/objc-act.h fives gt-objc-objc-act.h for objc/objc-act.c ! */
1793 { DIR_PREFIX_REGEX "objc/objc-act\\.h$",
1794 REG_EXTENDED, NULL_REGEX,
1795 "gt-objc-objc-act.h", "objc/objc-act.c", NULL_FRULACT },
1797 /* General cases. For header *.h and source *.c files, we need
1798 * special actions to handle the language. */
1800 /* Source *.c files are using get_file_gtfilename to compute their
1801 output_name and get_file_basename to compute their for_name
1802 thru the source_dot_c_frul action. */
1803 { DIR_PREFIX_REGEX "([[:alnum:]_-]*)\\.c$",
1804 REG_EXTENDED, NULL_REGEX, "gt-$3.h", "$3.c", source_dot_c_frul},
1805 /* Common header files get "gtype-desc.c" as their output_name,
1806 * while language specific header files are handled specially. So
1807 * we need the header_dot_h_frul action. */
1808 { DIR_PREFIX_REGEX "([[:alnum:]_-]*)\\.h$",
1809 REG_EXTENDED, NULL_REGEX, "gt-$3.h", "$3.h", header_dot_h_frul},
1811 { DIR_PREFIX_REGEX "([[:alnum:]_-]*)\\.in$",
1812 REG_EXTENDED, NULL_REGEX, "gt-$3.h", "$3.in", NULL_FRULACT},
1814 /* Mandatory null last entry signaling end of rules. */
1815 {NULL, 0, NULL_REGEX, NULL, NULL, NULL_FRULACT}
1818 /* Special file rules action for handling *.h header files. It gives
1819 "gtype-desc.c" for common headers and corresponding output
1820 files for language-specific header files. */
1822 header_dot_h_frul (input_file* inpf, char**poutname,
1823 char**pforname ATTRIBUTE_UNUSED)
1825 const char *basename = 0;
1827 DBGPRINTF ("inpf %p inpname %s outname %s forname %s",
1828 (void*) inpf, get_input_file_name (inpf),
1829 *poutname, *pforname);
1830 basename = get_file_basename (inpf);
1831 lang_index = get_prefix_langdir_index (basename);
1832 DBGPRINTF ("basename %s lang_index %d", basename, lang_index);
1834 if (lang_index >= 0)
1836 /* The header is language specific. Given output_name &
1837 for_name remains unchanged. The base_files array gives the
1839 DBGPRINTF ("header_dot_h found language specific @ %p '%s'",
1840 (void*) base_files[lang_index],
1841 (base_files[lang_index])->name);
1842 return base_files[lang_index];
1846 /* The header is common to all front-end languages. So
1847 output_name is "gtype-desc.c" file. The calling function
1848 get_output_file_with_visibility will find its outf_p. */
1850 *poutname = xstrdup ("gtype-desc.c");
1851 DBGPRINTF ("special 'gtype-desc.c' for inpname %s",
1852 get_input_file_name (inpf));
1858 /* Special file rules action for handling *.c source files using
1859 * get_file_gtfilename to compute their output_name and
1860 * get_file_basename to compute their for_name. The output_name is
1861 * gt-<LANG>-<BASE>.h for language specific source files, and
1862 * gt-<BASE>.h for common source files. */
1864 source_dot_c_frul (input_file* inpf, char**poutname, char**pforname)
1866 char *newbasename = CONST_CAST (char*, get_file_basename (inpf));
1867 char *newoutname = CONST_CAST (char*, get_file_gtfilename (inpf));
1868 DBGPRINTF ("inpf %p inpname %s original outname %s forname %s",
1869 (void*) inpf, get_input_file_name (inpf),
1870 *poutname, *pforname);
1871 DBGPRINTF ("newoutname %s", newoutname);
1872 DBGPRINTF ("newbasename %s", newbasename);
1875 *poutname = newoutname;
1876 *pforname = newbasename;
1880 /* Utility function for get_output_file_with_visibility which returns
1881 * a malloc-ed substituted string using TRS on matching of the FILNAM
1882 * file name, using the PMATCH array. */
1884 matching_file_name_substitute (const char *filnam, regmatch_t pmatch[10],
1887 struct obstack str_obstack;
1889 char *rawstr = NULL;
1890 const char *pt = NULL;
1891 DBGPRINTF ("filnam %s", filnam);
1892 obstack_init (&str_obstack);
1893 for (pt = trs; *pt; pt++) {
1899 /* A double dollar $$ is substituted by a single verbatim
1900 dollar, but who really uses dollar signs in file
1902 obstack_1grow (&str_obstack, '$');
1904 else if (ISDIGIT (pt[1]))
1906 /* Handle $0 $1 ... $9 by appropriate substitution. */
1907 int dolnum = pt[1] - '0';
1908 int so = pmatch[dolnum].rm_so;
1909 int eo = pmatch[dolnum].rm_eo;
1910 DBGPRINTF ("so=%d eo=%d dolnum=%d", so, eo, dolnum);
1911 if (so>=0 && eo>=so)
1912 obstack_grow (&str_obstack, filnam + so, eo - so);
1916 /* This can happen only when files_rules is buggy! */
1919 /* Always skip the character after the dollar. */
1923 obstack_1grow (&str_obstack, c);
1925 obstack_1grow (&str_obstack, '\0');
1926 rawstr = XOBFINISH (&str_obstack, char *);
1927 str = xstrdup (rawstr);
1928 obstack_free (&str_obstack, rawstr);
1929 DBGPRINTF ("matched replacement %s", str);
1935 /* An output file, suitable for definitions, that can see declarations
1936 made in INPF and is linked into every language that uses INPF.
1937 Since the the result is cached inside INPF, that argument cannot be
1938 declared constant, but is "almost" constant. */
1941 get_output_file_with_visibility (input_file *inpf)
1944 char *for_name = NULL;
1945 char *output_name = NULL;
1946 const char* inpfname;
1948 /* This can happen when we need a file with visibility on a
1949 structure that we've never seen. We have to just hope that it's
1950 globally visible. */
1952 inpf = system_h_file;
1954 /* The result is cached in INPF, so return it if already known. */
1956 return inpf->inpoutf;
1958 /* In plugin mode, return NULL unless the input_file is one of the
1963 for (i = 0; i < nb_plugin_files; i++)
1964 if (inpf == plugin_files[i])
1966 inpf->inpoutf = plugin_output;
1967 return plugin_output;
1973 inpfname = get_input_file_name (inpf);
1975 /* Try each rule in sequence in files_rules until one is triggered. */
1978 DBGPRINTF ("passing input file @ %p named %s thru the files_rules",
1979 (void*) inpf, inpfname);
1981 for (; files_rules[rulix].frul_srcexpr != NULL; rulix++)
1983 DBGPRINTF ("rulix#%d srcexpr %s",
1984 rulix, files_rules[rulix].frul_srcexpr);
1986 if (!files_rules[rulix].frul_re)
1988 /* Compile the regexpr lazily. */
1990 files_rules[rulix].frul_re = XCNEW (regex_t);
1991 err = regcomp (files_rules[rulix].frul_re,
1992 files_rules[rulix].frul_srcexpr,
1993 files_rules[rulix].frul_rflags);
1996 /* The regular expression compilation fails only when
1997 file_rules is buggy. */
2005 /* Match the regexpr and trigger the rule if matched. */
2007 /* We have exactly ten pmatch-s, one for each $0, $1, $2,
2009 regmatch_t pmatch[10];
2010 memset (pmatch, 0, sizeof (pmatch));
2011 if (!regexec (files_rules[rulix].frul_re,
2012 inpfname, 10, pmatch, 0))
2014 DBGPRINTF ("input @ %p filename %s matched rulix#%d pattern %s",
2015 (void*) inpf, inpfname, rulix,
2016 files_rules[rulix].frul_srcexpr);
2018 matching_file_name_substitute (inpfname, pmatch,
2019 files_rules[rulix].frul_tr_for);
2020 DBGPRINTF ("for_name %s", for_name);
2022 matching_file_name_substitute (inpfname, pmatch,
2023 files_rules[rulix].frul_tr_out);
2024 DBGPRINTF ("output_name %s", output_name);
2025 if (files_rules[rulix].frul_action)
2027 /* Invoke our action routine. */
2029 DBGPRINTF ("before action rulix#%d output_name %s for_name %s",
2030 rulix, output_name, for_name);
2032 (files_rules[rulix].frul_action) (inpf,
2033 &output_name, &for_name);
2034 DBGPRINTF ("after action rulix#%d of=%p output_name %s for_name %s",
2035 rulix, (void*)of, output_name, for_name);
2036 /* If the action routine returned something, give it back
2037 immediately and cache it in inpf. */
2044 /* The rule matched, and had no action, or that action did
2045 not return any output file but could have changed the
2046 output_name or for_name. We break out of the loop on the
2052 /* The regexpr did not match. */
2053 DBGPRINTF ("rulix#%d did not match %s pattern %s",
2054 rulix, inpfname, files_rules[rulix].frul_srcexpr);
2060 if (!output_name || !for_name)
2062 /* This is impossible, and could only happen if the files_rules is
2063 incomplete or buggy. */
2067 /* Look through to see if we've ever seen this output filename
2068 before. If found, cache the result in inpf. */
2069 for (r = output_files; r; r = r->next)
2070 if (strcmp (r->name, output_name) == 0)
2073 DBGPRINTF ("found r @ %p for output_name %s for_name %s", (void*)r,
2074 output_name, for_name);
2078 /* If not found, create it, and cache it in inpf. */
2079 r = create_file (for_name, output_name);
2081 gcc_assert (r && r->name);
2082 DBGPRINTF ("created r @ %p for output_name %s for_name %s", (void*) r,
2083 output_name, for_name);
2090 /* The name of an output file, suitable for definitions, that can see
2091 declarations made in INPF and is linked into every language that
2095 get_output_file_name (input_file* inpf)
2097 outf_p o = get_output_file_with_visibility (inpf);
2103 /* Check if existing file is equal to the in memory buffer. */
2106 is_file_equal (outf_p of)
2108 FILE *newfile = fopen (of->name, "r");
2111 if (newfile == NULL)
2115 for (i = 0; i < of->bufused; i++)
2118 ch = fgetc (newfile);
2119 if (ch == EOF || ch != (unsigned char) of->buf[i])
2129 /* Copy the output to its final destination,
2130 but don't unnecessarily change modification times. */
2133 close_output_files (void)
2135 int nbwrittenfiles = 0;
2138 for (of = output_files; of; of = of->next)
2141 if (!is_file_equal (of))
2143 FILE *newfile = NULL;
2144 char *backupname = NULL;
2145 /* Back up the old version of the output file gt-FOO.c as
2146 BACKUPDIR/gt-FOO.c~ if we have a backup directory. */
2149 backupname = concat (backup_dir, "/",
2150 lbasename (of->name), "~", NULL);
2151 if (!access (of->name, F_OK) && rename (of->name, backupname))
2152 fatal ("failed to back up %s as %s: %s",
2153 of->name, backupname, xstrerror (errno));
2156 newfile = fopen (of->name, "w");
2157 if (newfile == NULL)
2158 fatal ("opening output file %s: %s", of->name, xstrerror (errno));
2159 if (fwrite (of->buf, 1, of->bufused, newfile) != of->bufused)
2160 fatal ("writing output file %s: %s", of->name, xstrerror (errno));
2161 if (fclose (newfile) != 0)
2162 fatal ("closing output file %s: %s", of->name, xstrerror (errno));
2164 if (verbosity_level >= 2 && backupname)
2165 printf ("%s wrote #%-3d %s backed-up in %s\n",
2166 progname, nbwrittenfiles, of->name, backupname);
2167 else if (verbosity_level >= 1)
2168 printf ("%s write #%-3d %s\n", progname, nbwrittenfiles, of->name);
2173 /* output file remains unchanged. */
2174 if (verbosity_level >= 2)
2175 printf ("%s keep %s\n", progname, of->name);
2179 of->bufused = of->buflength = 0;
2181 if (verbosity_level >= 1)
2182 printf ("%s wrote %d files.\n", progname, nbwrittenfiles);
2189 const input_file* file;
2193 struct walk_type_data;
2195 /* For scalars and strings, given the item in 'val'.
2196 For structures, given a pointer to the item in 'val'.
2197 For misc. pointers, given the item in 'val'.
2199 typedef void (*process_field_fn) (type_p f, const struct walk_type_data * p);
2200 typedef void (*func_name_fn) (type_p s, const struct walk_type_data * p);
2202 /* Parameters for write_types. */
2204 struct write_types_data
2207 const char *param_prefix;
2208 const char *subfield_marker_routine;
2209 const char *marker_routine;
2210 const char *reorder_note_routine;
2211 const char *comment;
2212 int skip_hooks; /* skip hook generation if non zero */
2215 static void output_escaped_param (struct walk_type_data *d,
2216 const char *, const char *);
2217 static void output_mangled_typename (outf_p, const_type_p);
2218 static void walk_type (type_p t, struct walk_type_data *d);
2219 static void write_func_for_structure (type_p orig_s, type_p s, type_p *param,
2220 const struct write_types_data *wtd);
2221 static void write_types_process_field
2222 (type_p f, const struct walk_type_data *d);
2223 static void write_types (outf_p output_header,
2225 type_p param_structs,
2226 const struct write_types_data *wtd);
2227 static void write_types_local_process_field
2228 (type_p f, const struct walk_type_data *d);
2229 static void write_local_func_for_structure
2230 (const_type_p orig_s, type_p s, type_p *param);
2231 static void write_local (outf_p output_header,
2232 type_p structures, type_p param_structs);
2233 static void write_enum_defn (type_p structures, type_p param_structs);
2234 static int contains_scalar_p (type_p t);
2235 static void put_mangled_filename (outf_p, const input_file *);
2236 static void finish_root_table (struct flist *flp, const char *pfx,
2237 const char *tname, const char *lastname,
2239 static void write_root (outf_p, pair_p, type_p, const char *, int,
2240 struct fileloc *, const char *, bool);
2241 static void write_array (outf_p f, pair_p v,
2242 const struct write_types_data *wtd);
2243 static void write_roots (pair_p, bool);
2245 /* Parameters for walk_type. */
2247 struct walk_type_data
2249 process_field_fn process_field;
2254 const char *prev_val[4];
2257 const struct fileloc *line;
2262 const char *reorder_fn;
2264 bool fn_wants_lvalue;
2267 /* Print a mangled name representing T to OF. */
2270 output_mangled_typename (outf_p of, const_type_p t)
2282 output_mangled_typename (of, t->u.p);
2292 case TYPE_LANG_STRUCT:
2293 oprintf (of, "%lu%s", (unsigned long) strlen (t->u.s.tag),
2296 case TYPE_PARAM_STRUCT:
2299 for (i = 0; i < NUM_PARAM; i++)
2300 if (t->u.param_struct.param[i] != NULL)
2301 output_mangled_typename (of, t->u.param_struct.param[i]);
2302 output_mangled_typename (of, t->u.param_struct.stru);
2310 /* Print PARAM to D->OF processing escapes. D->VAL references the
2311 current object, D->PREV_VAL the object containing the current
2312 object, ONAME is the name of the option and D->LINE is used to
2313 print error messages. */
2316 output_escaped_param (struct walk_type_data *d, const char *param,
2321 for (p = param; *p; p++)
2323 oprintf (d->of, "%c", *p);
2328 oprintf (d->of, "(%s)", d->prev_val[2]);
2331 oprintf (d->of, "(%s)", d->prev_val[0]);
2334 oprintf (d->of, "(%s)", d->prev_val[1]);
2338 const char *pp = d->val + strlen (d->val);
2339 while (pp[-1] == ']')
2342 oprintf (d->of, "%s", pp);
2346 error_at_line (d->line, "`%s' option contains bad escape %c%c",
2351 /* Call D->PROCESS_FIELD for every field (or subfield) of D->VAL,
2352 which is of type T. Write code to D->OF to constrain execution (at
2353 the point that D->PROCESS_FIELD is called) to the appropriate
2354 cases. Call D->PROCESS_FIELD on subobjects before calling it on
2355 pointers to those objects. D->PREV_VAL lists the objects
2356 containing the current object, D->OPT is a list of options to
2357 apply, D->INDENT is the current indentation level, D->LINE is used
2358 to print error messages, D->BITMAP indicates which languages to
2359 print the structure for, and D->PARAM is the current parameter
2360 (from an enclosing param_is option). */
2363 walk_type (type_p t, struct walk_type_data *d)
2365 const char *length = NULL;
2366 const char *desc = NULL;
2367 int maybe_undef_p = 0;
2368 int use_param_num = -1;
2369 int use_params_p = 0;
2371 const struct nested_ptr_data *nested_ptr_d = NULL;
2373 d->needs_cast_p = false;
2374 for (oo = d->opt; oo; oo = oo->next)
2375 if (strcmp (oo->name, "length") == 0 && oo->kind == OPTION_STRING)
2376 length = oo->info.string;
2377 else if (strcmp (oo->name, "maybe_undef") == 0)
2379 else if (strncmp (oo->name, "use_param", 9) == 0
2380 && (oo->name[9] == '\0' || ISDIGIT (oo->name[9])))
2381 use_param_num = oo->name[9] == '\0' ? 0 : oo->name[9] - '0';
2382 else if (strcmp (oo->name, "use_params") == 0)
2384 else if (strcmp (oo->name, "desc") == 0 && oo->kind == OPTION_STRING)
2385 desc = oo->info.string;
2386 else if (strcmp (oo->name, "mark_hook") == 0)
2388 else if (strcmp (oo->name, "nested_ptr") == 0
2389 && oo->kind == OPTION_NESTED)
2390 nested_ptr_d = (const struct nested_ptr_data *) oo->info.nested;
2391 else if (strcmp (oo->name, "dot") == 0)
2393 else if (strcmp (oo->name, "tag") == 0)
2395 else if (strcmp (oo->name, "special") == 0)
2397 else if (strcmp (oo->name, "skip") == 0)
2399 else if (strcmp (oo->name, "default") == 0)
2401 else if (strcmp (oo->name, "param_is") == 0)
2403 else if (strncmp (oo->name, "param", 5) == 0
2404 && ISDIGIT (oo->name[5]) && strcmp (oo->name + 6, "_is") == 0)
2406 else if (strcmp (oo->name, "chain_next") == 0)
2408 else if (strcmp (oo->name, "chain_prev") == 0)
2410 else if (strcmp (oo->name, "chain_circular") == 0)
2412 else if (strcmp (oo->name, "reorder") == 0)
2414 else if (strcmp (oo->name, "variable_size") == 0)
2417 error_at_line (d->line, "unknown option `%s'\n", oo->name);
2424 int pointer_p = t->kind == TYPE_POINTER;
2428 if (!UNION_OR_STRUCT_P (t))
2429 error_at_line (d->line, "`use_params' option on unimplemented type");
2431 t = find_param_structure (t, d->param);
2433 t = create_pointer (t);
2436 if (use_param_num != -1)
2438 if (d->param != NULL && d->param[use_param_num] != NULL)
2440 type_p nt = d->param[use_param_num];
2442 if (t->kind == TYPE_ARRAY)
2443 nt = create_array (nt, t->u.a.len);
2444 else if (length != NULL && t->kind == TYPE_POINTER)
2445 nt = create_pointer (nt);
2446 d->needs_cast_p = (t->kind != TYPE_POINTER
2447 && (nt->kind == TYPE_POINTER
2448 || nt->kind == TYPE_STRING));
2452 error_at_line (d->line, "no parameter defined for `%s'", d->val);
2456 && (t->kind != TYPE_POINTER || !UNION_OR_STRUCT_P (t->u.p)))
2458 error_at_line (d->line,
2459 "field `%s' has invalid option `maybe_undef_p'\n",
2468 d->process_field (t, d);
2473 if (maybe_undef_p && t->u.p->u.s.line.file == NULL)
2475 oprintf (d->of, "%*sgcc_assert (!%s);\n", d->indent, "", d->val);
2481 if (!UNION_OR_STRUCT_P (t->u.p)
2482 && t->u.p->kind != TYPE_PARAM_STRUCT)
2484 error_at_line (d->line,
2485 "field `%s' is pointer to unimplemented type",
2492 const char *oldprevval2 = d->prev_val[2];
2494 if (!UNION_OR_STRUCT_P (nested_ptr_d->type))
2496 error_at_line (d->line,
2497 "field `%s' has invalid "
2498 "option `nested_ptr'\n", d->val);
2502 d->prev_val[2] = d->val;
2503 oprintf (d->of, "%*s{\n", d->indent, "");
2505 d->val = xasprintf ("x%d", d->counter++);
2506 oprintf (d->of, "%*s%s %s * %s%s =\n", d->indent, "",
2507 (nested_ptr_d->type->kind == TYPE_UNION
2508 ? "union" : "struct"),
2509 nested_ptr_d->type->u.s.tag,
2510 d->fn_wants_lvalue ? "" : "const ", d->val);
2511 oprintf (d->of, "%*s", d->indent + 2, "");
2512 output_escaped_param (d, nested_ptr_d->convert_from,
2514 oprintf (d->of, ";\n");
2516 d->process_field (nested_ptr_d->type, d);
2518 if (d->fn_wants_lvalue)
2520 oprintf (d->of, "%*s%s = ", d->indent, "",
2522 d->prev_val[2] = d->val;
2523 output_escaped_param (d, nested_ptr_d->convert_to,
2525 oprintf (d->of, ";\n");
2529 oprintf (d->of, "%*s}\n", d->indent, "");
2530 d->val = d->prev_val[2];
2531 d->prev_val[2] = oldprevval2;
2534 d->process_field (t->u.p, d);
2538 int loopcounter = d->counter++;
2539 const char *oldval = d->val;
2540 const char *oldprevval3 = d->prev_val[3];
2543 oprintf (d->of, "%*sif (%s != NULL) {\n", d->indent, "", d->val);
2545 oprintf (d->of, "%*ssize_t i%d;\n", d->indent, "", loopcounter);
2546 oprintf (d->of, "%*sfor (i%d = 0; i%d != (size_t)(", d->indent,
2547 "", loopcounter, loopcounter);
2548 output_escaped_param (d, length, "length");
2549 oprintf (d->of, "); i%d++) {\n", loopcounter);
2551 d->val = newval = xasprintf ("%s[i%d]", oldval, loopcounter);
2553 d->prev_val[3] = oldval;
2554 walk_type (t->u.p, d);
2557 d->prev_val[3] = oldprevval3;
2560 oprintf (d->of, "%*s}\n", d->indent, "");
2561 d->process_field (t, d);
2563 oprintf (d->of, "%*s}\n", d->indent, "");
2570 int loopcounter = d->counter++;
2571 const char *oldval = d->val;
2574 /* If it's an array of scalars, we optimize by not generating
2576 if (t->u.a.p->kind == TYPE_SCALAR)
2579 /* When walking an array, compute the length and store it in a
2580 local variable before walking the array elements, instead of
2581 recomputing the length expression each time through the loop.
2582 This is necessary to handle tcc_vl_exp objects like CALL_EXPR,
2583 where the length is stored in the first array element,
2584 because otherwise that operand can get overwritten on the
2586 oprintf (d->of, "%*s{\n", d->indent, "");
2588 oprintf (d->of, "%*ssize_t i%d;\n", d->indent, "", loopcounter);
2589 oprintf (d->of, "%*ssize_t l%d = (size_t)(",
2590 d->indent, "", loopcounter);
2592 output_escaped_param (d, length, "length");
2594 oprintf (d->of, "%s", t->u.a.len);
2595 oprintf (d->of, ");\n");
2597 oprintf (d->of, "%*sfor (i%d = 0; i%d != l%d; i%d++) {\n",
2599 loopcounter, loopcounter, loopcounter, loopcounter);
2601 d->val = newval = xasprintf ("%s[i%d]", oldval, loopcounter);
2603 walk_type (t->u.a.p, d);
2608 oprintf (d->of, "%*s}\n", d->indent, "");
2610 oprintf (d->of, "%*s}\n", d->indent, "");
2618 const char *oldval = d->val;
2619 const char *oldprevval1 = d->prev_val[1];
2620 const char *oldprevval2 = d->prev_val[2];
2621 const int union_p = t->kind == TYPE_UNION;
2622 int seen_default_p = 0;
2625 if (!t->u.s.line.file)
2626 error_at_line (d->line, "incomplete structure `%s'", t->u.s.tag);
2628 if ((d->bitmap & t->u.s.bitmap) != d->bitmap)
2630 error_at_line (d->line,
2631 "structure `%s' defined for mismatching languages",
2633 error_at_line (&t->u.s.line, "one structure defined here");
2636 /* Some things may also be defined in the structure's options. */
2637 for (o = t->u.s.opt; o; o = o->next)
2638 if (!desc && strcmp (o->name, "desc") == 0
2639 && o->kind == OPTION_STRING)
2640 desc = o->info.string;
2642 d->prev_val[2] = oldval;
2643 d->prev_val[1] = oldprevval2;
2648 error_at_line (d->line,
2649 "missing `desc' option for union `%s'",
2653 oprintf (d->of, "%*sswitch (", d->indent, "");
2654 output_escaped_param (d, desc, "desc");
2655 oprintf (d->of, ")\n");
2657 oprintf (d->of, "%*s{\n", d->indent, "");
2659 for (f = t->u.s.fields; f; f = f->next)
2662 const char *dot = ".";
2663 const char *tagid = NULL;
2666 int use_param_p = 0;
2669 d->reorder_fn = NULL;
2670 for (oo = f->opt; oo; oo = oo->next)
2671 if (strcmp (oo->name, "dot") == 0
2672 && oo->kind == OPTION_STRING)
2673 dot = oo->info.string;
2674 else if (strcmp (oo->name, "tag") == 0
2675 && oo->kind == OPTION_STRING)
2676 tagid = oo->info.string;
2677 else if (strcmp (oo->name, "skip") == 0)
2679 else if (strcmp (oo->name, "default") == 0)
2681 else if (strcmp (oo->name, "reorder") == 0
2682 && oo->kind == OPTION_STRING)
2683 d->reorder_fn = oo->info.string;
2684 else if (strncmp (oo->name, "use_param", 9) == 0
2685 && (oo->name[9] == '\0' || ISDIGIT (oo->name[9])))
2691 if (union_p && tagid)
2693 oprintf (d->of, "%*scase %s:\n", d->indent, "", tagid);
2696 else if (union_p && default_p)
2698 oprintf (d->of, "%*sdefault:\n", d->indent, "");
2702 else if (!union_p && (default_p || tagid))
2703 error_at_line (d->line,
2704 "can't use `%s' outside a union on field `%s'",
2705 default_p ? "default" : "tag", f->name);
2706 else if (union_p && !(default_p || tagid)
2707 && f->type->kind == TYPE_SCALAR)
2710 "%s:%d: warning: field `%s' is missing `tag' or `default' option\n",
2711 get_input_file_name (d->line->file), d->line->line,
2715 else if (union_p && !(default_p || tagid))
2716 error_at_line (d->line,
2717 "field `%s' is missing `tag' or `default' option",
2721 d->val = newval = xasprintf ("%s%s%s", oldval, dot, f->name);
2723 d->used_length = false;
2725 if (union_p && use_param_p && d->param == NULL)
2726 oprintf (d->of, "%*sgcc_unreachable ();\n", d->indent, "");
2728 walk_type (f->type, d);
2734 oprintf (d->of, "%*sbreak;\n", d->indent, "");
2738 d->reorder_fn = NULL;
2741 d->prev_val[1] = oldprevval1;
2742 d->prev_val[2] = oldprevval2;
2744 if (union_p && !seen_default_p)
2746 oprintf (d->of, "%*sdefault:\n", d->indent, "");
2747 oprintf (d->of, "%*s break;\n", d->indent, "");
2751 oprintf (d->of, "%*s}\n", d->indent, "");
2757 case TYPE_LANG_STRUCT:
2760 for (nt = t->u.s.lang_struct; nt; nt = nt->next)
2761 if ((d->bitmap & nt->u.s.bitmap) == d->bitmap)
2764 error_at_line (d->line, "structure `%s' differs between languages",
2771 case TYPE_PARAM_STRUCT:
2773 type_p *oldparam = d->param;
2775 d->param = t->u.param_struct.param;
2776 walk_type (t->u.param_struct.stru, d);
2777 d->param = oldparam;
2786 /* process_field routine for marking routines. */
2789 write_types_process_field (type_p f, const struct walk_type_data *d)
2791 const struct write_types_data *wtd;
2792 const char *cast = d->needs_cast_p ? "(void *)" : "";
2793 wtd = (const struct write_types_data *) d->cookie;
2800 oprintf (d->of, "%*s%s (%s%s", d->indent, "",
2801 wtd->subfield_marker_routine, cast, d->val);
2802 if (wtd->param_prefix)
2804 oprintf (d->of, ", %s", d->prev_val[3]);
2807 oprintf (d->of, ", gt_%s_", wtd->param_prefix);
2808 output_mangled_typename (d->of, d->orig_s);
2811 oprintf (d->of, ", gt_%sa_%s", wtd->param_prefix, d->prev_val[0]);
2813 if (f->u.p->kind == TYPE_PARAM_STRUCT
2814 && f->u.p->u.s.line.file != NULL)
2816 oprintf (d->of, ", gt_e_");
2817 output_mangled_typename (d->of, f);
2819 else if (UNION_OR_STRUCT_P (f) && f->u.p->u.s.line.file != NULL)
2821 oprintf (d->of, ", gt_ggc_e_");
2822 output_mangled_typename (d->of, f);
2825 oprintf (d->of, ", gt_types_enum_last");
2827 oprintf (d->of, ");\n");
2828 if (d->reorder_fn && wtd->reorder_note_routine)
2829 oprintf (d->of, "%*s%s (%s%s, %s, %s);\n", d->indent, "",
2830 wtd->reorder_note_routine, cast, d->val,
2831 d->prev_val[3], d->reorder_fn);
2837 case TYPE_LANG_STRUCT:
2838 case TYPE_PARAM_STRUCT:
2839 oprintf (d->of, "%*sgt_%s_", d->indent, "", wtd->prefix);
2840 output_mangled_typename (d->of, f);
2841 oprintf (d->of, " (%s%s);\n", cast, d->val);
2842 if (d->reorder_fn && wtd->reorder_note_routine)
2843 oprintf (d->of, "%*s%s (%s%s, %s%s, %s);\n", d->indent, "",
2844 wtd->reorder_note_routine, cast, d->val, cast, d->val,
2856 /* A subroutine of write_func_for_structure. Write the enum tag for S. */
2859 output_type_enum (outf_p of, type_p s)
2861 if (s->kind == TYPE_PARAM_STRUCT && s->u.param_struct.line.file != NULL)
2863 oprintf (of, ", gt_e_");
2864 output_mangled_typename (of, s);
2866 else if (UNION_OR_STRUCT_P (s) && s->u.s.line.file != NULL)
2868 oprintf (of, ", gt_ggc_e_");
2869 output_mangled_typename (of, s);
2872 oprintf (of, ", gt_types_enum_last");
2875 /* Return an output file that is suitable for definitions which can
2876 reference struct S */
2879 get_output_file_for_structure (const_type_p s, type_p *param)
2881 const input_file *fn;
2884 gcc_assert (UNION_OR_STRUCT_P (s));
2885 fn = s->u.s.line.file;
2887 /* This is a hack, and not the good kind either. */
2888 for (i = NUM_PARAM - 1; i >= 0; i--)
2889 if (param && param[i] && param[i]->kind == TYPE_POINTER
2890 && UNION_OR_STRUCT_P (param[i]->u.p))
2891 fn = param[i]->u.p->u.s.line.file;
2893 /* The call to get_output_file_with_visibility may update fn by
2894 caching its result inside, so we need the CONST_CAST. */
2895 return get_output_file_with_visibility (CONST_CAST (input_file*, fn));
2898 /* For S, a structure that's part of ORIG_S, and using parameters
2899 PARAM, write out a routine that:
2900 - Takes a parameter, a void * but actually of type *S
2901 - If SEEN_ROUTINE returns nonzero, calls write_types_process_field on each
2902 field of S or its substructures and (in some cases) things
2903 that are pointed to by S.
2907 write_func_for_structure (type_p orig_s, type_p s, type_p *param,
2908 const struct write_types_data *wtd)
2910 const char *chain_next = NULL;
2911 const char *chain_prev = NULL;
2912 const char *chain_circular = NULL;
2913 const char *mark_hook_name = NULL;
2915 struct walk_type_data d;
2917 memset (&d, 0, sizeof (d));
2918 d.of = get_output_file_for_structure (s, param);
2919 for (opt = s->u.s.opt; opt; opt = opt->next)
2920 if (strcmp (opt->name, "chain_next") == 0
2921 && opt->kind == OPTION_STRING)
2922 chain_next = opt->info.string;
2923 else if (strcmp (opt->name, "chain_prev") == 0
2924 && opt->kind == OPTION_STRING)
2925 chain_prev = opt->info.string;
2926 else if (strcmp (opt->name, "chain_circular") == 0
2927 && opt->kind == OPTION_STRING)
2928 chain_circular = opt->info.string;
2929 else if (strcmp (opt->name, "mark_hook") == 0
2930 && opt->kind == OPTION_STRING)
2931 mark_hook_name = opt->info.string;
2932 if (chain_prev != NULL && chain_next == NULL)
2933 error_at_line (&s->u.s.line, "chain_prev without chain_next");
2934 if (chain_circular != NULL && chain_next != NULL)
2935 error_at_line (&s->u.s.line, "chain_circular with chain_next");
2936 if (chain_circular != NULL)
2937 chain_next = chain_circular;
2939 d.process_field = write_types_process_field;
2943 d.line = &s->u.s.line;
2944 d.bitmap = s->u.s.bitmap;
2946 d.prev_val[0] = "*x";
2947 d.prev_val[1] = "not valid postage"; /* Guarantee an error. */
2948 d.prev_val[3] = "x";
2951 oprintf (d.of, "\n");
2952 oprintf (d.of, "void\n");
2954 oprintf (d.of, "gt_%sx_%s", wtd->prefix, orig_s->u.s.tag);
2957 oprintf (d.of, "gt_%s_", wtd->prefix);
2958 output_mangled_typename (d.of, orig_s);
2960 oprintf (d.of, " (void *x_p)\n");
2961 oprintf (d.of, "{\n");
2962 oprintf (d.of, " %s %s * %sx = (%s %s *)x_p;\n",
2963 s->kind == TYPE_UNION ? "union" : "struct", s->u.s.tag,
2964 chain_next == NULL ? "const " : "",
2965 s->kind == TYPE_UNION ? "union" : "struct", s->u.s.tag);
2966 if (chain_next != NULL)
2967 oprintf (d.of, " %s %s * xlimit = x;\n",
2968 s->kind == TYPE_UNION ? "union" : "struct", s->u.s.tag);
2969 if (chain_next == NULL)
2971 oprintf (d.of, " if (%s (x", wtd->marker_routine);
2972 if (wtd->param_prefix)
2974 oprintf (d.of, ", x, gt_%s_", wtd->param_prefix);
2975 output_mangled_typename (d.of, orig_s);
2976 output_type_enum (d.of, orig_s);
2978 oprintf (d.of, "))\n");
2982 if (chain_circular != NULL)
2983 oprintf (d.of, " if (!%s (xlimit", wtd->marker_routine);
2985 oprintf (d.of, " while (%s (xlimit", wtd->marker_routine);
2986 if (wtd->param_prefix)
2988 oprintf (d.of, ", xlimit, gt_%s_", wtd->param_prefix);
2989 output_mangled_typename (d.of, orig_s);
2990 output_type_enum (d.of, orig_s);
2992 oprintf (d.of, "))\n");
2993 if (chain_circular != NULL)
2994 oprintf (d.of, " return;\n do\n");
2995 if (mark_hook_name && !wtd->skip_hooks)
2997 oprintf (d.of, " {\n");
2998 oprintf (d.of, " %s (xlimit);\n ", mark_hook_name);
3000 oprintf (d.of, " xlimit = (");
3001 d.prev_val[2] = "*xlimit";
3002 output_escaped_param (&d, chain_next, "chain_next");
3003 oprintf (d.of, ");\n");
3004 if (mark_hook_name && !wtd->skip_hooks)
3005 oprintf (d.of, " }\n");
3006 if (chain_prev != NULL)
3008 oprintf (d.of, " if (x != xlimit)\n");
3009 oprintf (d.of, " for (;;)\n");
3010 oprintf (d.of, " {\n");
3011 oprintf (d.of, " %s %s * const xprev = (",
3012 s->kind == TYPE_UNION ? "union" : "struct", s->u.s.tag);
3014 d.prev_val[2] = "*x";
3015 output_escaped_param (&d, chain_prev, "chain_prev");
3016 oprintf (d.of, ");\n");
3017 oprintf (d.of, " if (xprev == NULL) break;\n");
3018 oprintf (d.of, " x = xprev;\n");
3019 oprintf (d.of, " (void) %s (xprev", wtd->marker_routine);
3020 if (wtd->param_prefix)
3022 oprintf (d.of, ", xprev, gt_%s_", wtd->param_prefix);
3023 output_mangled_typename (d.of, orig_s);
3024 output_type_enum (d.of, orig_s);
3026 oprintf (d.of, ");\n");
3027 oprintf (d.of, " }\n");
3029 if (chain_circular != NULL)
3031 oprintf (d.of, " while (%s (xlimit", wtd->marker_routine);
3032 if (wtd->param_prefix)
3034 oprintf (d.of, ", xlimit, gt_%s_", wtd->param_prefix);
3035 output_mangled_typename (d.of, orig_s);
3036 output_type_enum (d.of, orig_s);
3038 oprintf (d.of, "));\n");
3039 if (mark_hook_name && !wtd->skip_hooks)
3040 oprintf (d.of, " %s (xlimit);\n", mark_hook_name);
3041 oprintf (d.of, " do\n");
3044 oprintf (d.of, " while (x != xlimit)\n");
3046 oprintf (d.of, " {\n");
3047 if (mark_hook_name && chain_next == NULL && !wtd->skip_hooks)
3049 oprintf (d.of, " %s (x);\n", mark_hook_name);
3051 d.prev_val[2] = "*x";
3055 if (chain_next != NULL)
3057 oprintf (d.of, " x = (");
3058 output_escaped_param (&d, chain_next, "chain_next");
3059 oprintf (d.of, ");\n");
3062 oprintf (d.of, " }\n");
3063 if (chain_circular != NULL)
3064 oprintf (d.of, " while (x != xlimit);\n");
3065 oprintf (d.of, "}\n");
3068 /* Write out marker routines for STRUCTURES and PARAM_STRUCTS. */
3071 write_types (outf_p output_header, type_p structures, type_p param_structs,
3072 const struct write_types_data *wtd)
3074 int nbfun = 0; /* Count the emitted functions. */
3077 oprintf (output_header, "\n/* %s*/\n", wtd->comment);
3078 /* We first emit the macros and the declarations. Functions' code is
3079 emitted afterwards. This is needed in plugin mode. */
3080 oprintf (output_header, "/* macros and declarations */\n");
3081 for (s = structures; s; s = s->next)
3082 if (s->gc_used == GC_POINTED_TO || s->gc_used == GC_MAYBE_POINTED_TO)
3086 if (s->gc_used == GC_MAYBE_POINTED_TO && s->u.s.line.file == NULL)
3089 oprintf (output_header, "#define gt_%s_", wtd->prefix);
3090 output_mangled_typename (output_header, s);
3091 oprintf (output_header, "(X) do { \\\n");
3092 oprintf (output_header,
3093 " if (X != NULL) gt_%sx_%s (X);\\\n", wtd->prefix,
3095 oprintf (output_header, " } while (0)\n");
3097 for (opt = s->u.s.opt; opt; opt = opt->next)
3098 if (strcmp (opt->name, "ptr_alias") == 0
3099 && opt->kind == OPTION_TYPE)
3101 const_type_p const t = (const_type_p) opt->info.type;
3102 if (t->kind == TYPE_STRUCT
3103 || t->kind == TYPE_UNION || t->kind == TYPE_LANG_STRUCT)
3104 oprintf (output_header,
3105 "#define gt_%sx_%s gt_%sx_%s\n",
3106 wtd->prefix, s->u.s.tag, wtd->prefix, t->u.s.tag);
3108 error_at_line (&s->u.s.line,
3109 "structure alias is not a structure");
3115 /* Declare the marker procedure only once. */
3116 oprintf (output_header,
3117 "extern void gt_%sx_%s (void *);\n",
3118 wtd->prefix, s->u.s.tag);
3120 if (s->u.s.line.file == NULL)
3122 fprintf (stderr, "warning: structure `%s' used but not defined\n",
3128 for (s = param_structs; s; s = s->next)
3129 if (s->gc_used == GC_POINTED_TO)
3131 type_p stru = s->u.param_struct.stru;
3133 /* Declare the marker procedure. */
3134 oprintf (output_header, "extern void gt_%s_", wtd->prefix);
3135 output_mangled_typename (output_header, s);
3136 oprintf (output_header, " (void *);\n");
3138 if (stru->u.s.line.file == NULL)
3140 fprintf (stderr, "warning: structure `%s' used but not defined\n",
3146 /* At last we emit the functions code. */
3147 oprintf (output_header, "\n/* functions code */\n");
3148 for (s = structures; s; s = s->next)
3149 if (s->gc_used == GC_POINTED_TO || s->gc_used == GC_MAYBE_POINTED_TO)
3153 if (s->gc_used == GC_MAYBE_POINTED_TO && s->u.s.line.file == NULL)
3155 for (opt = s->u.s.opt; opt; opt = opt->next)
3156 if (strcmp (opt->name, "ptr_alias") == 0)
3161 if (s->kind == TYPE_LANG_STRUCT)
3164 for (ss = s->u.s.lang_struct; ss; ss = ss->next)
3167 DBGPRINTF ("writing func #%d lang_struct ss @ %p '%s'",
3168 nbfun, (void*) ss, ss->u.s.tag);
3169 write_func_for_structure (s, ss, NULL, wtd);
3175 DBGPRINTF ("writing func #%d struct s @ %p '%s'",
3176 nbfun, (void*) s, s->u.s.tag);
3177 write_func_for_structure (s, s, NULL, wtd);
3182 /* Structure s is not possibly pointed to, so can be ignored. */
3183 DBGPRINTF ("ignored s @ %p '%s' gc_used#%d",
3184 (void*)s, s->u.s.tag,
3188 for (s = param_structs; s; s = s->next)
3189 if (s->gc_used == GC_POINTED_TO)
3191 type_p *param = s->u.param_struct.param;
3192 type_p stru = s->u.param_struct.stru;
3193 if (stru->u.s.line.file == NULL)
3195 if (stru->kind == TYPE_LANG_STRUCT)
3198 for (ss = stru->u.s.lang_struct; ss; ss = ss->next)
3201 DBGPRINTF ("writing func #%d param lang_struct ss @ %p '%s'",
3202 nbfun, (void*) ss, ss->u.s.tag);
3203 write_func_for_structure (s, ss, param, wtd);
3209 DBGPRINTF ("writing func #%d param struct s @ %p stru @ %p '%s'",
3211 (void*) stru, stru->u.s.tag);
3212 write_func_for_structure (s, stru, param, wtd);
3217 /* Param structure s is not pointed to, so should be ignored. */
3218 DBGPRINTF ("ignored s @ %p", (void*)s);
3220 if (verbosity_level >= 2)
3221 printf ("%s emitted %d routines for %s\n",
3222 progname, nbfun, wtd->comment);
3225 static const struct write_types_data ggc_wtd = {
3226 "ggc_m", NULL, "ggc_mark", "ggc_test_and_set_mark", NULL,
3227 "GC marker procedures. ",
3231 static const struct write_types_data pch_wtd = {
3232 "pch_n", "pch_p", "gt_pch_note_object", "gt_pch_note_object",
3233 "gt_pch_note_reorder",
3234 "PCH type-walking procedures. ",
3238 /* Write out the local pointer-walking routines. */
3240 /* process_field routine for local pointer-walking. */
3243 write_types_local_process_field (type_p f, const struct walk_type_data *d)
3250 case TYPE_LANG_STRUCT:
3251 case TYPE_PARAM_STRUCT:
3253 oprintf (d->of, "%*sif ((void *)(%s) == this_obj)\n", d->indent, "",
3255 oprintf (d->of, "%*s op (&(%s), cookie);\n", d->indent, "", d->val);
3266 /* For S, a structure that's part of ORIG_S, and using parameters
3267 PARAM, write out a routine that:
3268 - Is of type gt_note_pointers
3269 - Calls PROCESS_FIELD on each field of S or its substructures.
3273 write_local_func_for_structure (const_type_p orig_s, type_p s, type_p *param)
3275 struct walk_type_data d;
3277 memset (&d, 0, sizeof (d));
3278 d.of = get_output_file_for_structure (s, param);
3279 d.process_field = write_types_local_process_field;
3281 d.line = &s->u.s.line;
3282 d.bitmap = s->u.s.bitmap;
3284 d.prev_val[0] = d.prev_val[2] = "*x";
3285 d.prev_val[1] = "not valid postage"; /* Guarantee an error. */
3286 d.prev_val[3] = "x";
3288 d.fn_wants_lvalue = true;
3290 oprintf (d.of, "\n");
3291 oprintf (d.of, "void\n");
3292 oprintf (d.of, "gt_pch_p_");
3293 output_mangled_typename (d.of, orig_s);
3294 oprintf (d.of, " (ATTRIBUTE_UNUSED void *this_obj,\n"
3296 "\tATTRIBUTE_UNUSED gt_pointer_operator op,\n"
3297 "\tATTRIBUTE_UNUSED void *cookie)\n");
3298 oprintf (d.of, "{\n");
3299 oprintf (d.of, " %s %s * const x ATTRIBUTE_UNUSED = (%s %s *)x_p;\n",
3300 s->kind == TYPE_UNION ? "union" : "struct", s->u.s.tag,
3301 s->kind == TYPE_UNION ? "union" : "struct", s->u.s.tag);
3304 oprintf (d.of, "}\n");
3307 /* Write out local marker routines for STRUCTURES and PARAM_STRUCTS. */
3310 write_local (outf_p output_header, type_p structures, type_p param_structs)
3316 oprintf (output_header, "\n/* Local pointer-walking routines. */\n");
3317 for (s = structures; s; s = s->next)
3318 if (s->gc_used == GC_POINTED_TO || s->gc_used == GC_MAYBE_POINTED_TO)
3322 if (s->u.s.line.file == NULL)
3324 for (opt = s->u.s.opt; opt; opt = opt->next)
3325 if (strcmp (opt->name, "ptr_alias") == 0
3326 && opt->kind == OPTION_TYPE)
3328 const_type_p const t = (const_type_p) opt->info.type;
3329 if (t->kind == TYPE_STRUCT
3330 || t->kind == TYPE_UNION || t->kind == TYPE_LANG_STRUCT)
3332 oprintf (output_header, "#define gt_pch_p_");
3333 output_mangled_typename (output_header, s);
3334 oprintf (output_header, " gt_pch_p_");
3335 output_mangled_typename (output_header, t);
3336 oprintf (output_header, "\n");
3339 error_at_line (&s->u.s.line,
3340 "structure alias is not a structure");
3346 /* Declare the marker procedure only once. */
3347 oprintf (output_header, "extern void gt_pch_p_");
3348 output_mangled_typename (output_header, s);
3349 oprintf (output_header,
3350 "\n (void *, void *, gt_pointer_operator, void *);\n");
3352 if (s->kind == TYPE_LANG_STRUCT)
3355 for (ss = s->u.s.lang_struct; ss; ss = ss->next)
3356 write_local_func_for_structure (s, ss, NULL);
3359 write_local_func_for_structure (s, s, NULL);
3362 for (s = param_structs; s; s = s->next)
3363 if (s->gc_used == GC_POINTED_TO)
3365 type_p *param = s->u.param_struct.param;
3366 type_p stru = s->u.param_struct.stru;
3368 /* Declare the marker procedure. */
3369 oprintf (output_header, "extern void gt_pch_p_");
3370 output_mangled_typename (output_header, s);
3371 oprintf (output_header,
3372 "\n (void *, void *, gt_pointer_operator, void *);\n");
3374 if (stru->u.s.line.file == NULL)
3376 fprintf (stderr, "warning: structure `%s' used but not defined\n",
3381 if (stru->kind == TYPE_LANG_STRUCT)
3384 for (ss = stru->u.s.lang_struct; ss; ss = ss->next)
3385 write_local_func_for_structure (s, ss, param);
3388 write_local_func_for_structure (s, stru, param);
3392 /* Nonzero if S is a type for which typed GC allocators should be output. */
3394 #define USED_BY_TYPED_GC_P(s) \
3395 (((s->kind == TYPE_POINTER) \
3396 && ((s->u.p->gc_used == GC_POINTED_TO) \
3397 || (s->u.p->gc_used == GC_USED))) \
3398 || (UNION_OR_STRUCT_P (s) && \
3399 (((s)->gc_used == GC_POINTED_TO) \
3400 || ((s)->gc_used == GC_MAYBE_POINTED_TO \
3401 && s->u.s.line.file != NULL) \
3402 || ((s)->gc_used == GC_USED \
3403 && strncmp (s->u.s.tag, "anonymous", strlen ("anonymous"))))))
3406 /* Write out the 'enum' definition for gt_types_enum. */
3409 write_enum_defn (type_p structures, type_p param_structs)
3413 int nbparamstruct = 0;
3417 oprintf (header_file, "\n/* Enumeration of types known. */\n");
3418 oprintf (header_file, "enum gt_types_enum {\n");
3419 for (s = structures; s; s = s->next)
3420 if (USED_BY_TYPED_GC_P (s))
3423 DBGPRINTF ("write_enum_defn s @ %p nbstruct %d",
3424 (void*) s, nbstruct);
3425 if (UNION_OR_STRUCT_P (s))
3426 DBGPRINTF ("write_enum_defn s %p #%d is unionorstruct tagged %s",
3427 (void*) s, nbstruct, s->u.s.tag);
3428 oprintf (header_file, " gt_ggc_e_");
3429 output_mangled_typename (header_file, s);
3430 oprintf (header_file, ",\n");
3432 for (s = param_structs; s; s = s->next)
3433 if (s->gc_used == GC_POINTED_TO)
3436 DBGPRINTF ("write_enum_defn s %p nbparamstruct %d",
3437 (void*) s, nbparamstruct);
3438 oprintf (header_file, " gt_e_");
3439 output_mangled_typename (header_file, s);
3440 oprintf (header_file, ",\n");
3442 oprintf (header_file, " gt_types_enum_last\n");
3443 oprintf (header_file, "};\n");
3444 if (verbosity_level >= 2)
3445 printf ("%s handled %d GTY-ed structures & %d parameterized structures.\n",
3446 progname, nbstruct, nbparamstruct);
3450 /* Might T contain any non-pointer elements? */
3453 contains_scalar_p (type_p t)
3461 return contains_scalar_p (t->u.a.p);
3463 /* Could also check for structures that have no non-pointer
3464 fields, but there aren't enough of those to worry about. */
3469 /* Mangle INPF and print it to F. */
3472 put_mangled_filename (outf_p f, const input_file *inpf)
3474 /* The call to get_output_file_name may indirectly update fn since
3475 get_output_file_with_visibility caches its result inside, so we
3476 need the CONST_CAST. */
3477 const char *name = get_output_file_name (CONST_CAST (input_file*, inpf));
3480 for (; *name != 0; name++)
3481 if (ISALNUM (*name))
3482 oprintf (f, "%c", *name);
3484 oprintf (f, "%c", '_');
3487 /* Finish off the currently-created root tables in FLP. PFX, TNAME,
3488 LASTNAME, and NAME are all strings to insert in various places in
3489 the resulting code. */
3492 finish_root_table (struct flist *flp, const char *pfx, const char *lastname,
3493 const char *tname, const char *name)
3497 for (fli2 = flp; fli2; fli2 = fli2->next)
3498 if (fli2->started_p)
3500 oprintf (fli2->f, " %s\n", lastname);
3501 oprintf (fli2->f, "};\n\n");
3504 for (fli2 = flp; fli2 && base_files; fli2 = fli2->next)
3505 if (fli2->started_p)
3507 lang_bitmap bitmap = get_lang_bitmap (fli2->file);
3510 for (fnum = 0; bitmap != 0; fnum++, bitmap >>= 1)
3513 oprintf (base_files[fnum],
3514 "extern const struct %s gt_%s_", tname, pfx);
3515 put_mangled_filename (base_files[fnum], fli2->file);
3516 oprintf (base_files[fnum], "[];\n");
3522 for (fnum = 0; base_files && fnum < num_lang_dirs; fnum++)
3523 oprintf (base_files[fnum],
3524 "EXPORTED_CONST struct %s * const %s[] = {\n", tname, name);
3528 for (fli2 = flp; fli2; fli2 = fli2->next)
3529 if (fli2->started_p)
3531 lang_bitmap bitmap = get_lang_bitmap (fli2->file);
3534 fli2->started_p = 0;
3536 for (fnum = 0; base_files && bitmap != 0; fnum++, bitmap >>= 1)
3539 oprintf (base_files[fnum], " gt_%s_", pfx);
3540 put_mangled_filename (base_files[fnum], fli2->file);
3541 oprintf (base_files[fnum], ",\n");
3547 for (fnum = 0; base_files && fnum < num_lang_dirs; fnum++)
3549 oprintf (base_files[fnum], " NULL\n");
3550 oprintf (base_files[fnum], "};\n");
3555 /* Write the first three fields (pointer, count and stride) for
3556 root NAME to F. V and LINE are as for write_root.
3558 Return true if the entry could be written; return false on error. */
3561 start_root_entry (outf_p f, pair_p v, const char *name, struct fileloc *line)
3567 error_at_line (line, "`%s' is too complex to be a root", name);
3571 oprintf (f, " {\n");
3572 oprintf (f, " &%s,\n", name);
3575 for (ap = v->type; ap->kind == TYPE_ARRAY; ap = ap->u.a.p)
3577 oprintf (f, " * (%s)", ap->u.a.len);
3578 else if (ap == v->type)
3579 oprintf (f, " * ARRAY_SIZE (%s)", v->name);
3581 oprintf (f, " sizeof (%s", v->name);
3582 for (ap = v->type; ap->kind == TYPE_ARRAY; ap = ap->u.a.p)
3584 oprintf (f, "),\n");
3588 /* A subroutine of write_root for writing the roots for field FIELD_NAME,
3589 which has type FIELD_TYPE. Parameters F to EMIT_PCH are the parameters
3593 write_field_root (outf_p f, pair_p v, type_p type, const char *name,
3594 int has_length, struct fileloc *line, const char *if_marked,
3595 bool emit_pch, type_p field_type, const char *field_name)
3598 /* If the field reference is relative to V, rather than to some
3599 subcomponent of V, we can mark any subarrays with a single stride.
3600 We're effectively treating the field as a global variable in its
3602 if (v && type == v->type)
3605 newv.type = field_type;
3606 newv.name = ACONCAT ((v->name, ".", field_name, NULL));
3609 /* Otherwise, any arrays nested in the structure are too complex to
3611 else if (field_type->kind == TYPE_ARRAY)
3613 write_root (f, v, field_type, ACONCAT ((name, ".", field_name, NULL)),
3614 has_length, line, if_marked, emit_pch);
3617 /* Write out to F the table entry and any marker routines needed to
3618 mark NAME as TYPE. V can be one of three values:
3620 - null, if NAME is too complex to represent using a single
3621 count and stride. In this case, it is an error for NAME to
3622 contain any gc-ed data.
3624 - the outermost array that contains NAME, if NAME is part of an array.
3626 - the C variable that contains NAME, if NAME is not part of an array.
3628 LINE is the line of the C source that declares the root variable.
3629 HAS_LENGTH is nonzero iff V was a variable-length array. IF_MARKED
3630 is nonzero iff we are building the root table for hash table caches. */
3633 write_root (outf_p f, pair_p v, type_p type, const char *name, int has_length,
3634 struct fileloc *line, const char *if_marked, bool emit_pch)
3641 for (fld = type->u.s.fields; fld; fld = fld->next)
3644 const char *desc = NULL;
3647 for (o = fld->opt; o; o = o->next)
3648 if (strcmp (o->name, "skip") == 0)
3650 else if (strcmp (o->name, "desc") == 0
3651 && o->kind == OPTION_STRING)
3652 desc = o->info.string;
3653 else if (strcmp (o->name, "param_is") == 0)
3656 error_at_line (line,
3657 "field `%s' of global `%s' has unknown option `%s'",
3658 fld->name, name, o->name);
3662 else if (desc && fld->type->kind == TYPE_UNION)
3664 pair_p validf = NULL;
3667 for (ufld = fld->type->u.s.fields; ufld; ufld = ufld->next)
3669 const char *tag = NULL;
3671 for (oo = ufld->opt; oo; oo = oo->next)
3672 if (strcmp (oo->name, "tag") == 0
3673 && oo->kind == OPTION_STRING)
3674 tag = oo->info.string;
3675 if (tag == NULL || strcmp (tag, desc) != 0)
3678 error_at_line (line,
3679 "both `%s.%s.%s' and `%s.%s.%s' have tag `%s'",
3680 name, fld->name, validf->name,
3681 name, fld->name, ufld->name, tag);
3685 write_field_root (f, v, type, name, 0, line, if_marked,
3686 emit_pch, validf->type,
3687 ACONCAT ((fld->name, ".",
3688 validf->name, NULL)));
3691 error_at_line (line,
3692 "global `%s.%s' has `desc' option but is not union",
3695 write_field_root (f, v, type, name, 0, line, if_marked,
3696 emit_pch, fld->type, fld->name);
3704 newname = xasprintf ("%s[0]", name);
3705 write_root (f, v, type->u.a.p, newname, has_length, line, if_marked,
3715 if (!start_root_entry (f, v, name, line))
3720 if (!has_length && UNION_OR_STRUCT_P (tp))
3722 oprintf (f, " >_ggc_mx_%s,\n", tp->u.s.tag);
3724 oprintf (f, " >_pch_nx_%s", tp->u.s.tag);
3726 oprintf (f, " NULL");
3728 else if (!has_length && tp->kind == TYPE_PARAM_STRUCT)
3730 oprintf (f, " >_ggc_m_");
3731 output_mangled_typename (f, tp);
3734 oprintf (f, ",\n >_pch_n_");
3735 output_mangled_typename (f, tp);
3738 oprintf (f, ",\n NULL");
3741 && (tp->kind == TYPE_POINTER || UNION_OR_STRUCT_P (tp)))
3743 oprintf (f, " >_ggc_ma_%s,\n", name);
3745 oprintf (f, " >_pch_na_%s", name);
3747 oprintf (f, " NULL");
3751 error_at_line (line,
3752 "global `%s' is pointer to unimplemented type",
3756 oprintf (f, ",\n &%s", if_marked);
3757 oprintf (f, "\n },\n");
3763 if (!start_root_entry (f, v, name, line))
3766 oprintf (f, " (gt_pointer_walker) >_ggc_m_S,\n");
3767 oprintf (f, " (gt_pointer_walker) >_pch_n_S\n");
3768 oprintf (f, " },\n");
3776 error_at_line (line, "global `%s' is unimplemented type", name);
3780 /* This generates a routine to walk an array. */
3783 write_array (outf_p f, pair_p v, const struct write_types_data *wtd)
3785 struct walk_type_data d;
3788 memset (&d, 0, sizeof (d));
3794 d.bitmap = get_lang_bitmap (v->line.file);
3797 d.prev_val[3] = prevval3 = xasprintf ("&%s", v->name);
3799 if (wtd->param_prefix)
3801 oprintf (f, "static void gt_%sa_%s\n", wtd->param_prefix, v->name);
3802 oprintf (f, " (void *, void *, gt_pointer_operator, void *);\n");
3803 oprintf (f, "static void gt_%sa_%s (ATTRIBUTE_UNUSED void *this_obj,\n",
3804 wtd->param_prefix, v->name);
3806 " ATTRIBUTE_UNUSED void *x_p,\n"
3807 " ATTRIBUTE_UNUSED gt_pointer_operator op,\n"
3808 " ATTRIBUTE_UNUSED void * cookie)\n");
3809 oprintf (d.of, "{\n");
3810 d.prev_val[0] = d.prev_val[1] = d.prev_val[2] = d.val = v->name;
3811 d.process_field = write_types_local_process_field;
3812 walk_type (v->type, &d);
3813 oprintf (f, "}\n\n");
3817 oprintf (f, "static void gt_%sa_%s (void *);\n", wtd->prefix, v->name);
3818 oprintf (f, "static void\ngt_%sa_%s (ATTRIBUTE_UNUSED void *x_p)\n",
3819 wtd->prefix, v->name);
3821 d.prev_val[0] = d.prev_val[1] = d.prev_val[2] = d.val = v->name;
3822 d.process_field = write_types_process_field;
3823 walk_type (v->type, &d);
3825 oprintf (f, "}\n\n");
3828 /* Output a table describing the locations and types of VARIABLES. */
3831 write_roots (pair_p variables, bool emit_pch)
3834 struct flist *flp = NULL;
3836 for (v = variables; v; v = v->next)
3839 get_output_file_with_visibility (CONST_CAST (input_file*,
3842 const char *length = NULL;
3843 int deletable_p = 0;
3845 for (o = v->opt; o; o = o->next)
3846 if (strcmp (o->name, "length") == 0
3847 && o->kind == OPTION_STRING)
3848 length = o->info.string;
3849 else if (strcmp (o->name, "deletable") == 0)
3851 else if (strcmp (o->name, "param_is") == 0)
3853 else if (strncmp (o->name, "param", 5) == 0
3854 && ISDIGIT (o->name[5]) && strcmp (o->name + 6, "_is") == 0)
3856 else if (strcmp (o->name, "if_marked") == 0)
3859 error_at_line (&v->line,
3860 "global `%s' has unknown option `%s'",
3863 for (fli = flp; fli; fli = fli->next)
3864 if (fli->f == f && f)
3868 fli = XNEW (struct flist);
3872 fli->file = v->line.file;
3873 gcc_assert (fli->file);
3876 oprintf (f, "\n/* GC roots. */\n\n");
3881 && v->type->kind == TYPE_POINTER
3882 && (v->type->u.p->kind == TYPE_POINTER
3883 || v->type->u.p->kind == TYPE_STRUCT))
3885 write_array (f, v, &ggc_wtd);
3886 write_array (f, v, &pch_wtd);
3890 for (v = variables; v; v = v->next)
3892 outf_p f = get_output_file_with_visibility (CONST_CAST (input_file*,
3899 for (o = v->opt; o; o = o->next)
3900 if (strcmp (o->name, "length") == 0)
3902 else if (strcmp (o->name, "deletable") == 0
3903 || strcmp (o->name, "if_marked") == 0)
3909 for (fli = flp; fli; fli = fli->next)
3912 if (!fli->started_p)
3916 oprintf (f, "EXPORTED_CONST struct ggc_root_tab gt_ggc_r_");
3917 put_mangled_filename (f, v->line.file);
3918 oprintf (f, "[] = {\n");
3921 write_root (f, v, v->type, v->name, length_p, &v->line, NULL, emit_pch);
3924 finish_root_table (flp, "ggc_r", "LAST_GGC_ROOT_TAB", "ggc_root_tab",
3927 for (v = variables; v; v = v->next)
3929 outf_p f = get_output_file_with_visibility (CONST_CAST (input_file*,
3935 for (o = v->opt; o; o = o->next)
3936 if (strcmp (o->name, "deletable") == 0)
3938 else if (strcmp (o->name, "if_marked") == 0)
3944 for (fli = flp; fli; fli = fli->next)
3947 if (!fli->started_p)
3951 oprintf (f, "EXPORTED_CONST struct ggc_root_tab gt_ggc_rd_");
3952 put_mangled_filename (f, v->line.file);
3953 oprintf (f, "[] = {\n");
3956 oprintf (f, " { &%s, 1, sizeof (%s), NULL, NULL },\n",
3960 finish_root_table (flp, "ggc_rd", "LAST_GGC_ROOT_TAB", "ggc_root_tab",
3961 "gt_ggc_deletable_rtab");
3963 for (v = variables; v; v = v->next)
3965 outf_p f = get_output_file_with_visibility (CONST_CAST (input_file*,
3968 const char *if_marked = NULL;
3972 for (o = v->opt; o; o = o->next)
3973 if (strcmp (o->name, "length") == 0)
3975 else if (strcmp (o->name, "if_marked") == 0
3976 && o->kind == OPTION_STRING)
3977 if_marked = o->info.string;
3978 if (if_marked == NULL)
3980 if (v->type->kind != TYPE_POINTER
3981 || v->type->u.p->kind != TYPE_PARAM_STRUCT
3982 || v->type->u.p->u.param_struct.stru != find_structure ("htab", 0))
3984 error_at_line (&v->line,
3985 "if_marked option used but not hash table");
3989 for (fli = flp; fli; fli = fli->next)
3992 if (!fli->started_p)
3996 oprintf (f, "EXPORTED_CONST struct ggc_cache_tab gt_ggc_rc_");
3997 put_mangled_filename (f, v->line.file);
3998 oprintf (f, "[] = {\n");
4001 write_root (f, v, v->type->u.p->u.param_struct.param[0],
4002 v->name, length_p, &v->line, if_marked, emit_pch);
4005 finish_root_table (flp, "ggc_rc", "LAST_GGC_CACHE_TAB", "ggc_cache_tab",
4006 "gt_ggc_cache_rtab");
4011 for (v = variables; v; v = v->next)
4013 outf_p f = get_output_file_with_visibility (CONST_CAST (input_file*,
4017 int if_marked_p = 0;
4020 for (o = v->opt; o; o = o->next)
4021 if (strcmp (o->name, "length") == 0)
4023 else if (strcmp (o->name, "if_marked") == 0)
4029 for (fli = flp; fli; fli = fli->next)
4032 if (!fli->started_p)
4036 oprintf (f, "EXPORTED_CONST struct ggc_root_tab gt_pch_rc_");
4037 put_mangled_filename (f, v->line.file);
4038 oprintf (f, "[] = {\n");
4041 write_root (f, v, v->type, v->name, length_p, &v->line, NULL, emit_pch);
4044 finish_root_table (flp, "pch_rc", "LAST_GGC_ROOT_TAB", "ggc_root_tab",
4045 "gt_pch_cache_rtab");
4047 for (v = variables; v; v = v->next)
4049 outf_p f = get_output_file_with_visibility (CONST_CAST (input_file*,
4055 for (o = v->opt; o; o = o->next)
4056 if (strcmp (o->name, "deletable") == 0
4057 || strcmp (o->name, "if_marked") == 0)
4063 if (!contains_scalar_p (v->type))
4066 for (fli = flp; fli; fli = fli->next)
4069 if (!fli->started_p)
4073 oprintf (f, "EXPORTED_CONST struct ggc_root_tab gt_pch_rs_");
4074 put_mangled_filename (f, v->line.file);
4075 oprintf (f, "[] = {\n");
4078 oprintf (f, " { &%s, 1, sizeof (%s), NULL, NULL },\n",
4082 finish_root_table (flp, "pch_rs", "LAST_GGC_ROOT_TAB", "ggc_root_tab",
4083 "gt_pch_scalar_rtab");
4086 /* Record the definition of a generic VEC structure, as if we had expanded
4087 the macros in vec.h:
4089 typedef struct VEC_<type>_base GTY(()) {
4092 <type> GTY((length ("%h.num"))) vec[1];
4095 where the GTY(()) tags are only present if is_scalar is _false_. */
4098 note_def_vec (const char *type_name, bool is_scalar, struct fileloc *pos)
4103 type_p len_ty = create_scalar_type ("unsigned");
4104 const char *name = concat ("VEC_", type_name, "_base", (char *) 0);
4108 t = create_scalar_type (type_name);
4113 t = resolve_typedef (type_name, pos);
4114 o = create_string_option (0, "length", "%h.num");
4116 /* We assemble the field list in reverse order. */
4117 fields = create_field_at (0, create_array (t, "1"), "vec", o, pos);
4118 fields = create_field_at (fields, len_ty, "alloc", 0, pos);
4119 fields = create_field_at (fields, len_ty, "num", 0, pos);
4121 do_typedef (name, new_structure (name, 0, pos, fields, 0), pos);
4124 /* Record the definition of an allocation-specific VEC structure, as if
4125 we had expanded the macros in vec.h:
4127 typedef struct VEC_<type>_<astrat> {
4128 VEC_<type>_base base;
4129 } VEC_<type>_<astrat>;
4132 note_def_vec_alloc (const char *type, const char *astrat, struct fileloc *pos)
4134 const char *astratname = concat ("VEC_", type, "_", astrat, (char *) 0);
4135 const char *basename = concat ("VEC_", type, "_base", (char *) 0);
4137 pair_p field = create_field_at (0, resolve_typedef (basename, pos),
4140 do_typedef (astratname, new_structure (astratname, 0, pos, field, 0), pos);
4143 /* Returns the specifier keyword for a string or union type S, empty string
4147 get_type_specifier (const type_p s)
4149 if (s->kind == TYPE_STRUCT || s->kind == TYPE_LANG_STRUCT)
4151 if (s->kind == TYPE_UNION)
4156 /* TRUE if type S has the GTY variable_size annotation. */
4159 variable_size_p (const type_p s)
4162 for (o = s->u.s.opt; o; o = o->next)
4163 if (strcmp (o->name, "variable_size") == 0)
4171 { any_zone, specific_zone };
4173 /* Writes one typed allocator definition for type identifier TYPE_NAME with
4174 optional type specifier TYPE_SPECIFIER. The allocator name will contain
4175 ALLOCATOR_TYPE. If VARIABLE_SIZE is true, the allocator will have an extra
4176 parameter specifying number of bytes to allocate. If QUANTITY is set to
4177 VECTOR, a vector allocator will be output, if ZONE is set to SPECIFIC_ZONE,
4178 the allocator will be zone-specific. */
4181 write_typed_alloc_def (bool variable_size, const char *type_specifier,
4182 const char *type_name, const char *allocator_type,
4183 enum alloc_quantity quantity, enum alloc_zone zone)
4185 bool two_args = variable_size && (quantity == vector);
4186 bool third_arg = ((zone == specific_zone)
4187 && (variable_size || (quantity == vector)));
4189 oprintf (header_file, "#define ggc_alloc_%s%s", allocator_type, type_name);
4190 oprintf (header_file, "(%s%s%s%s%s) ",
4191 (variable_size ? "SIZE" : ""),
4192 (two_args ? ", " : ""),
4193 (quantity == vector) ? "n" : "",
4194 (third_arg ? ", " : ""), (zone == specific_zone) ? "z" : "");
4195 oprintf (header_file, "((%s%s *)", type_specifier, type_name);
4196 oprintf (header_file, "(ggc_internal_%salloc_stat (", allocator_type);
4197 if (zone == specific_zone)
4198 oprintf (header_file, "z, ");
4200 oprintf (header_file, "SIZE");
4202 oprintf (header_file, "sizeof (%s%s)", type_specifier, type_name);
4203 if (quantity == vector)
4204 oprintf (header_file, ", n");
4205 oprintf (header_file, " MEM_STAT_INFO)))\n");
4208 /* Writes a typed allocator definition for a struct or union S. */
4211 write_typed_struct_alloc_def (const type_p s, const char *allocator_type,
4212 enum alloc_quantity quantity,
4213 enum alloc_zone zone)
4215 write_typed_alloc_def (variable_size_p (s), get_type_specifier (s),
4216 s->u.s.tag, allocator_type, quantity, zone);
4219 /* Writes a typed allocator definition for a typedef P. */
4222 write_typed_typedef_alloc_def (const pair_p p, const char *allocator_type,
4223 enum alloc_quantity quantity,
4224 enum alloc_zone zone)
4226 write_typed_alloc_def (variable_size_p (p->type), "", p->name,
4227 allocator_type, quantity, zone);
4230 /* Writes typed allocator definitions for the types in STRUCTURES and
4231 TYPEDEFS that are used by GC. */
4234 write_typed_alloc_defns (const type_p structures, const pair_p typedefs)
4239 oprintf (header_file,
4240 "\n/* Allocators for known structs and unions. */\n\n");
4241 for (s = structures; s; s = s->next)
4243 if (!USED_BY_TYPED_GC_P (s))
4245 write_typed_struct_alloc_def (s, "", single, any_zone);
4246 write_typed_struct_alloc_def (s, "cleared_", single, any_zone);
4247 write_typed_struct_alloc_def (s, "vec_", vector, any_zone);
4248 write_typed_struct_alloc_def (s, "cleared_vec_", vector, any_zone);
4249 write_typed_struct_alloc_def (s, "zone_", single, specific_zone);
4250 write_typed_struct_alloc_def (s, "zone_cleared_", single,
4252 write_typed_struct_alloc_def (s, "zone_vec_", vector, specific_zone);
4253 write_typed_struct_alloc_def (s, "zone_cleared_vec_", vector,
4257 oprintf (header_file, "\n/* Allocators for known typedefs. */\n");
4258 for (p = typedefs; p; p = p->next)
4261 if (!USED_BY_TYPED_GC_P (s) || (strcmp (p->name, s->u.s.tag) == 0))
4263 write_typed_typedef_alloc_def (p, "", single, any_zone);
4264 write_typed_typedef_alloc_def (p, "cleared_", single, any_zone);
4265 write_typed_typedef_alloc_def (p, "vec_", vector, any_zone);
4266 write_typed_typedef_alloc_def (p, "cleared_vec_", vector, any_zone);
4267 write_typed_typedef_alloc_def (p, "zone_", single, specific_zone);
4268 write_typed_typedef_alloc_def (p, "zone_cleared_", single,
4270 write_typed_typedef_alloc_def (p, "zone_cleared_vec_", vector,
4275 /* Prints not-as-ugly version of a typename of T to OF. Trades the uniquness
4276 guaranteee for somewhat increased readability. If name conflicts do happen,
4277 this funcion will have to be adjusted to be more like
4278 output_mangled_typename. */
4281 output_typename (outf_p of, const_type_p t)
4286 oprintf (of, "str");
4289 oprintf (of, "scalar");
4292 output_typename (of, t->u.p);
4296 case TYPE_LANG_STRUCT:
4297 oprintf (of, "%s", t->u.s.tag);
4299 case TYPE_PARAM_STRUCT:
4302 for (i = 0; i < NUM_PARAM; i++)
4303 if (t->u.param_struct.param[i] != NULL)
4305 output_typename (of, t->u.param_struct.param[i]);
4308 output_typename (of, t->u.param_struct.stru);
4316 /* Writes a typed GC allocator for type S that is suitable as a callback for
4317 the splay tree implementation in libiberty. */
4320 write_splay_tree_allocator_def (const_type_p s)
4322 outf_p of = get_output_file_with_visibility (NULL);
4323 oprintf (of, "void * ggc_alloc_splay_tree_");
4324 output_typename (of, s);
4325 oprintf (of, " (int sz, void * nl)\n");
4326 oprintf (of, "{\n");
4327 oprintf (of, " return ggc_splay_alloc (");
4328 oprintf (of, "gt_e_");
4329 output_mangled_typename (of, s);
4330 oprintf (of, ", sz, nl);\n");
4331 oprintf (of, "}\n\n");
4334 /* Writes typed GC allocators for PARAM_STRUCTS that are suitable as callbacks
4335 for the splay tree implementation in libiberty. */
4338 write_splay_tree_allocators (const_type_p param_structs)
4342 oprintf (header_file, "\n/* Splay tree callback allocators. */\n");
4343 for (s = param_structs; s; s = s->next)
4344 if (s->gc_used == GC_POINTED_TO)
4346 oprintf (header_file, "extern void * ggc_alloc_splay_tree_");
4347 output_typename (header_file, s);
4348 oprintf (header_file, " (int, void *);\n");
4349 write_splay_tree_allocator_def (s);
4353 static void dump_pair (int indent, pair_p p);
4354 static void dump_type (int indent, type_p p);
4355 static void dump_type_list (int indent, type_p p);
4359 /* Dumps the value of typekind KIND. */
4362 dump_typekind (int indent, enum typekind kind)
4364 printf ("%*ckind = ", indent, ' ');
4368 printf ("TYPE_SCALAR");
4371 printf ("TYPE_STRING");
4374 printf ("TYPE_STRUCT");
4377 printf ("TYPE_UNION");
4380 printf ("TYPE_POINTER");
4383 printf ("TYPE_ARRAY");
4385 case TYPE_LANG_STRUCT:
4386 printf ("TYPE_LANG_STRUCT");
4388 case TYPE_PARAM_STRUCT:
4389 printf ("TYPE_PARAM_STRUCT");
4397 /* Dumps the value of GC_USED flag. */
4400 dump_gc_used (int indent, enum gc_used_enum gc_used)
4402 printf ("%*cgc_used = ", indent, ' ');
4406 printf ("GC_UNUSED");
4411 case GC_MAYBE_POINTED_TO:
4412 printf ("GC_MAYBE_POINTED_TO");
4415 printf ("GC_POINTED_TO");
4423 /* Dumps the type options OPT. */
4426 dump_options (int indent, options_p opt)
4429 printf ("%*coptions = ", indent, ' ');
4436 printf ("%s:string %s ", o->name, o->info.string);
4439 printf ("%s:type ", o->name);
4440 dump_type (indent+1, o->info.type);
4443 printf ("%s:nested ", o->name);
4453 /* Dumps the source file location in LINE. */
4456 dump_fileloc (int indent, struct fileloc line)
4458 printf ("%*cfileloc: file = %s, line = %d\n", indent, ' ',
4459 get_input_file_name (line.file),
4463 /* Recursively dumps the struct, union, or a language-specific
4467 dump_type_u_s (int indent, type_p t)
4471 gcc_assert (t->kind == TYPE_STRUCT || t->kind == TYPE_UNION
4472 || t->kind == TYPE_LANG_STRUCT);
4473 printf ("%*cu.s.tag = %s\n", indent, ' ', t->u.s.tag);
4474 dump_fileloc (indent, t->u.s.line);
4475 printf ("%*cu.s.fields =\n", indent, ' ');
4476 fields = t->u.s.fields;
4479 dump_pair (indent + INDENT, fields);
4480 fields = fields->next;
4482 printf ("%*cend of fields of type %p\n", indent, ' ', (void *) t);
4483 dump_options (indent, t->u.s.opt);
4484 printf ("%*cu.s.bitmap = %X\n", indent, ' ', t->u.s.bitmap);
4485 if (t->kind == TYPE_LANG_STRUCT)
4487 printf ("%*cu.s.lang_struct:\n", indent, ' ');
4488 dump_type_list (indent + INDENT, t->u.s.lang_struct);
4492 /* Recursively dumps the array T. */
4495 dump_type_u_a (int indent, type_p t)
4497 gcc_assert (t->kind == TYPE_ARRAY);
4498 printf ("%*clen = %s, u.a.p:\n", indent, ' ', t->u.a.len);
4499 dump_type_list (indent + INDENT, t->u.a.p);
4502 /* Recursively dumps the parameterized struct T. */
4505 dump_type_u_param_struct (int indent, type_p t)
4508 gcc_assert (t->kind == TYPE_PARAM_STRUCT);
4509 printf ("%*cu.param_struct.stru:\n", indent, ' ');
4510 dump_type_list (indent, t->u.param_struct.stru);
4511 dump_fileloc (indent, t->u.param_struct.line);
4512 for (i = 0; i < NUM_PARAM; i++)
4514 if (t->u.param_struct.param[i] == NULL)
4516 printf ("%*cu.param_struct.param[%d]:\n", indent, ' ', i);
4517 dump_type (indent + INDENT, t->u.param_struct.param[i]);
4521 /* Recursively dumps the type list T. */
4524 dump_type_list (int indent, type_p t)
4529 dump_type (indent, p);
4534 static htab_t seen_types;
4536 /* Recursively dumps the type T if it was not dumped previously. */
4539 dump_type (int indent, type_p t)
4543 printf ("%*cType at %p: ", indent, ' ', (void *) t);
4544 slot = htab_find_slot (seen_types, t, INSERT);
4547 printf ("already seen.\n");
4553 dump_typekind (indent, t->kind);
4554 printf ("%*cpointer_to = %p\n", indent + INDENT, ' ',
4555 (void *) t->pointer_to);
4556 dump_gc_used (indent + INDENT, t->gc_used);
4560 printf ("%*cscalar_is_char = %s\n", indent + INDENT, ' ',
4561 t->u.scalar_is_char ? "true" : "false");
4567 case TYPE_LANG_STRUCT:
4568 dump_type_u_s (indent + INDENT, t);
4571 printf ("%*cp:\n", indent + INDENT, ' ');
4572 dump_type (indent + INDENT, t->u.p);
4575 dump_type_u_a (indent + INDENT, t);
4577 case TYPE_PARAM_STRUCT:
4578 dump_type_u_param_struct (indent + INDENT, t);
4583 printf ("%*cEnd of type at %p\n", indent, ' ', (void *) t);
4586 /* Dumps the pair P. */
4589 dump_pair (int indent, pair_p p)
4591 printf ("%*cpair: name = %s\n", indent, ' ', p->name);
4592 dump_type (indent, p->type);
4593 dump_fileloc (indent, p->line);
4594 dump_options (indent, p->opt);
4595 printf ("%*cEnd of pair %s\n", indent, ' ', p->name);
4598 /* Dumps the list of pairs PP. */
4601 dump_pair_list (const char *name, pair_p pp)
4604 printf ("%s:\n", name);
4605 for (p = pp; p != NULL; p = p->next)
4607 printf ("End of %s\n\n", name);
4610 /* Dumps the STRUCTURES. */
4613 dump_structures (const char *name, type_p structures)
4615 printf ("%s:\n", name);
4616 dump_type_list (0, structures);
4617 printf ("End of %s\n\n", name);
4620 /* Dumps the internal structures of gengtype. This is useful to debug
4621 gengtype itself, or to understand what it does, e.g. for plugin
4625 dump_everything (void)
4627 seen_types = htab_create (100, htab_hash_pointer, htab_eq_pointer, NULL);
4628 dump_pair_list ("typedefs", typedefs);
4629 dump_structures ("structures", structures);
4630 dump_structures ("param_structs", param_structs);
4631 dump_pair_list ("variables", variables);
4632 htab_delete (seen_types);
4637 /* Option specification for getopt_long. */
4638 static const struct option gengtype_long_options[] = {
4639 {"help", no_argument, NULL, 'h'},
4640 {"version", no_argument, NULL, 'V'},
4641 {"verbose", no_argument, NULL, 'v'},
4642 {"dump", no_argument, NULL, 'd'},
4643 {"debug", no_argument, NULL, 'D'},
4644 {"plugin", required_argument, NULL, 'P'},
4645 {"srcdir", required_argument, NULL, 'S'},
4646 {"backupdir", required_argument, NULL, 'B'},
4647 {"inputs", required_argument, NULL, 'I'},
4648 {"read-state", required_argument, NULL, 'r'},
4649 {"write-state", required_argument, NULL, 'w'},
4650 /* Terminating NULL placeholder. */
4651 {NULL, no_argument, NULL, 0},
4658 printf ("Usage: %s\n", progname);
4659 printf ("\t -h | --help " " \t# Give this help.\n");
4660 printf ("\t -D | --debug "
4661 " \t# Give debug output to debug %s itself.\n", progname);
4662 printf ("\t -V | --version " " \t# Give version information.\n");
4663 printf ("\t -v | --verbose \t# Increase verbosity. Can be given several times.\n");
4664 printf ("\t -d | --dump " " \t# Dump state for debugging.\n");
4665 printf ("\t -P | --plugin <output-file> <plugin-src> ... "
4666 " \t# Generate for plugin.\n");
4667 printf ("\t -S | --srcdir <GCC-directory> "
4668 " \t# Specify the GCC source directory.\n");
4669 printf ("\t -B | --backupdir <directory> "
4670 " \t# Specify the backup directory for updated files.\n");
4671 printf ("\t -I | --inputs <input-list> "
4672 " \t# Specify the file with source files list.\n");
4673 printf ("\t -w | --write-state <state-file> " " \t# Write a state file.\n");
4674 printf ("\t -r | --read-state <state-file> " " \t# Read a state file.\n");
4678 print_version (void)
4680 printf ("%s %s%s\n", progname, pkgversion_string, version_string);
4681 printf ("Report bugs: %s\n", bug_report_url);
4684 /* Parse the program options using getopt_long... */
4686 parse_program_options (int argc, char **argv)
4689 while ((opt = getopt_long (argc, argv, "hVvdP:S:B:I:w:r:D",
4690 gengtype_long_options, NULL)) >= 0)
4694 case 'h': /* --help */
4697 case 'V': /* --version */
4700 case 'd': /* --dump */
4703 case 'D': /* --debug */
4706 case 'v': /* --verbose */
4709 case 'P': /* --plugin */
4711 plugin_output_filename = optarg;
4713 fatal ("missing plugin output file name");
4715 case 'S': /* --srcdir */
4719 fatal ("missing source directory");
4720 srcdir_len = strlen (srcdir);
4722 case 'B': /* --backupdir */
4724 backup_dir = optarg;
4726 fatal ("missing backup directory");
4728 case 'I': /* --inputs */
4732 fatal ("missing input list");
4734 case 'r': /* --read-state */
4736 read_state_filename = optarg;
4738 fatal ("missing read state file");
4739 DBGPRINTF ("read state %s\n", optarg);
4741 case 'w': /* --write-state */
4742 DBGPRINTF ("write state %s\n", optarg);
4744 write_state_filename = optarg;
4746 fatal ("missing write state file");
4749 fprintf (stderr, "%s: unknown flag '%c'\n", progname, opt);
4751 fatal ("unexpected flag");
4754 if (plugin_output_filename)
4756 /* In plugin mode we require some input files. */
4759 fatal ("no source files given in plugin mode");
4760 nb_plugin_files = argc - optind;
4761 plugin_files = XNEWVEC (input_file*, nb_plugin_files);
4762 for (i = 0; i < (int) nb_plugin_files; i++)
4764 char *name = argv[i + optind];
4765 plugin_files[i] = input_file_by_name (name);
4772 /******* Manage input files. ******/
4774 /* Hash table of unique input file names. */
4775 static htab_t input_file_htab;
4777 /* Find or allocate a new input_file by hash-consing it. */
4779 input_file_by_name (const char* name)
4782 input_file* f = NULL;
4786 namlen = strlen (name);
4787 f = XCNEWVAR (input_file, sizeof (input_file)+namlen+2);
4790 strcpy (f->inpname, name);
4791 slot = htab_find_slot (input_file_htab, f, INSERT);
4792 gcc_assert (slot != NULL);
4795 /* Already known input file. */
4797 return (input_file*)(*slot);
4799 /* New input file. */
4804 /* Hash table support routines for input_file-s. */
4806 htab_hash_inputfile (const void *p)
4808 const input_file *inpf = (const input_file *) p;
4810 return htab_hash_string (get_input_file_name (inpf));
4814 htab_eq_inputfile (const void *x, const void *y)
4816 const input_file *inpfx = (const input_file *) x;
4817 const input_file *inpfy = (const input_file *) y;
4818 gcc_assert (inpfx != NULL && inpfy != NULL);
4819 return !strcmp (get_input_file_name (inpfx), get_input_file_name (inpfy));
4824 main (int argc, char **argv)
4827 static struct fileloc pos = { NULL, 0 };
4828 outf_p output_header;
4830 /* Mandatory common initializations. */
4831 progname = "gengtype"; /* For fatal and messages. */
4832 /* Create the hash-table used to hash-cons input files. */
4834 htab_create (800, htab_hash_inputfile, htab_eq_inputfile, NULL);
4835 /* Initialize our special input files. */
4836 this_file = input_file_by_name (__FILE__);
4837 system_h_file = input_file_by_name ("system.h");
4838 /* Set the scalar_is_char union number for predefined scalar types. */
4839 scalar_nonchar.u.scalar_is_char = FALSE;
4840 scalar_char.u.scalar_is_char = TRUE;
4842 parse_program_options (argc, argv);
4847 time_t now = (time_t) 0;
4849 DBGPRINTF ("gengtype started pid %d at %s",
4850 (int) getpid (), ctime (&now));
4852 #endif /* ENABLE_CHECKING */
4854 /* Parse the input list and the input files. */
4855 DBGPRINTF ("inputlist %s", inputlist);
4856 if (read_state_filename)
4859 fatal ("input list %s cannot be given with a read state file %s",
4860 inputlist, read_state_filename);
4861 read_state (read_state_filename);
4862 DBGPRINT_COUNT_TYPE ("structures after read_state", structures);
4863 DBGPRINT_COUNT_TYPE ("param_structs after read_state", param_structs);
4867 /* These types are set up with #define or else outside of where
4868 we can see them. We should initialize them before calling
4870 #define POS_HERE(Call) do { pos.file = this_file; pos.line = __LINE__; \
4872 POS_HERE (do_scalar_typedef ("CUMULATIVE_ARGS", &pos));
4873 POS_HERE (do_scalar_typedef ("REAL_VALUE_TYPE", &pos));
4874 POS_HERE (do_scalar_typedef ("FIXED_VALUE_TYPE", &pos));
4875 POS_HERE (do_scalar_typedef ("double_int", &pos));
4876 POS_HERE (do_scalar_typedef ("uint64_t", &pos));
4877 POS_HERE (do_scalar_typedef ("uint8", &pos));
4878 POS_HERE (do_scalar_typedef ("jword", &pos));
4879 POS_HERE (do_scalar_typedef ("JCF_u2", &pos));
4880 POS_HERE (do_scalar_typedef ("void", &pos));
4881 POS_HERE (do_typedef ("PTR",
4882 create_pointer (resolve_typedef ("void", &pos)),
4885 read_input_list (inputlist);
4886 for (i = 0; i < num_gt_files; i++)
4888 parse_file (get_input_file_name (gt_files[i]));
4889 DBGPRINTF ("parsed file #%d %s",
4890 (int) i, get_input_file_name (gt_files[i]));
4892 if (verbosity_level >= 1)
4893 printf ("%s parsed %d files with %d GTY types\n",
4894 progname, (int) num_gt_files, type_count);
4896 DBGPRINT_COUNT_TYPE ("structures after parsing", structures);
4897 DBGPRINT_COUNT_TYPE ("param_structs after parsing", param_structs);
4901 fatal ("either an input list or a read state file should be given");
4906 if (plugin_output_filename)
4909 /* In plugin mode, we should have read a state file, and have
4910 given at least one plugin file. */
4911 if (!read_state_filename)
4912 fatal ("No read state given in plugin mode for %s",
4913 plugin_output_filename);
4915 if (nb_plugin_files == 0 || !plugin_files)
4916 fatal ("No plugin files given in plugin mode for %s",
4917 plugin_output_filename);
4919 /* Parse our plugin files and augment the state. */
4920 for (ix = 0; ix < nb_plugin_files; ix++)
4921 parse_file (get_input_file_name (plugin_files[ix]));
4926 plugin_output = create_file ("GCC", plugin_output_filename);
4927 DBGPRINTF ("created plugin_output %p named %s",
4928 (void *) plugin_output, plugin_output->name);
4931 { /* No plugin files, we are in normal mode. */
4933 fatal ("gengtype needs a source directory in normal mode");
4940 /* The call to set_gc_used may indirectly call find_param_structure
4941 hence enlarge the param_structs list of types. */
4942 set_gc_used (variables);
4944 /* The state at this point is read from the state input file or by
4945 parsing source files and optionally augmented by parsing plugin
4946 source files. Write it now. */
4947 if (write_state_filename)
4949 DBGPRINT_COUNT_TYPE ("structures before write_state", structures);
4950 DBGPRINT_COUNT_TYPE ("param_structs before write_state", param_structs);
4953 fatal ("didn't write state file %s after errors",
4954 write_state_filename);
4956 DBGPRINTF ("before write_state %s", write_state_filename);
4957 write_state (write_state_filename);
4962 /* After having written the state file we return immediately to
4963 avoid generating any output file. */
4973 write_enum_defn (structures, param_structs);
4974 write_typed_alloc_defns (structures, typedefs);
4975 output_header = plugin_output ? plugin_output : header_file;
4976 DBGPRINT_COUNT_TYPE ("structures before write_types outputheader",
4978 DBGPRINT_COUNT_TYPE ("param_structs before write_types outputheader",
4981 write_types (output_header, structures, param_structs, &ggc_wtd);
4982 if (plugin_files == NULL)
4984 DBGPRINT_COUNT_TYPE ("structures before write_types headerfil",
4986 DBGPRINT_COUNT_TYPE ("param_structs before write_types headerfil",
4988 write_types (header_file, structures, param_structs, &pch_wtd);
4989 write_local (header_file, structures, param_structs);
4991 write_splay_tree_allocators (param_structs);
4992 write_roots (variables, plugin_files == NULL);
4994 close_output_files ();
4999 /* Don't bother about free-ing any input or plugin file, etc. */