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. */
34 /* Kinds of types we can understand. */
48 /* A way to pass data through to the output end. */
56 /* Option data for the 'nested_ptr' option. */
57 struct nested_ptr_data
60 const char *convert_to;
61 const char *convert_from;
64 /* A name and a type. */
76 /* A description of a type. */
81 /* Used for structures whose definitions we haven't seen so far when
82 we encounter a pointer to it that is annotated with ``maybe_undef''.
83 If after reading in everything we don't have source file
84 information for it, we assume that it never has been defined. */
94 enum gc_used_enum gc_used;
116 type_p param[NUM_PARAM];
123 ((x)->kind == TYPE_UNION || \
124 ((x)->kind == TYPE_LANG_STRUCT \
125 && (x)->u.s.lang_struct->kind == TYPE_UNION))
126 #define UNION_OR_STRUCT_P(x) \
127 ((x)->kind == TYPE_UNION \
128 || (x)->kind == TYPE_STRUCT \
129 || (x)->kind == TYPE_LANG_STRUCT)
135 /* The list of output files. */
138 /* The output header file that is included into pretty much every
143 /* The name of the file containing the list of input files. */
144 static char *inputlist;
146 /* The plugin input files and their number; in that case only
147 a single file is produced. */
148 static input_file **plugin_files;
149 static size_t nb_plugin_files;
151 /* The generated plugin output file and name. */
152 static outf_p plugin_output;
153 static char *plugin_output_filename;
155 /* Our source directory and its length. */
159 /* Variables used for reading and writing the state. */
160 const char *read_state_filename;
161 const char *write_state_filename;
163 /* Variables to help debugging. */
167 /* Level for verbose messages. */
170 /* The backup directory should be in the same file system as the
171 generated files, otherwise the rename(2) system call would fail.
172 If NULL, no backup is made when overwriting a generated file. */
173 static const char* backup_dir; /* (-B) program option. */
176 static outf_p create_file (const char *, const char *);
178 static const char *get_file_basename (const input_file *);
179 static const char *get_file_realbasename (const input_file *);
181 static int get_prefix_langdir_index (const char *);
182 static const char *get_file_langdir (const input_file *);
185 /* Nonzero iff an error has occurred. */
186 bool hit_error = false;
188 static void gen_rtx_next (void);
189 static void write_rtx_next (void);
190 static void open_base_files (void);
191 static void close_output_files (void);
193 /* Report an error at POS, printing MSG. */
196 error_at_line (const struct fileloc *pos, const char *msg, ...)
200 gcc_assert (pos != NULL && pos->file != NULL);
203 fprintf (stderr, "%s:%d: ", get_input_file_name (pos->file), pos->line);
204 vfprintf (stderr, msg, ap);
205 fputc ('\n', stderr);
211 /* asprintf, but produces fatal message on out-of-memory. */
213 xasprintf (const char *format, ...)
219 va_start (ap, format);
220 n = vasprintf (&result, format, ap);
221 if (result == NULL || n < 0)
222 fatal ("out of memory");
228 /* Input file handling. */
230 /* Table of all input files. */
231 const input_file **gt_files;
234 /* A number of places use the name of this "gengtype.c" file for a
235 location for things that we can't rely on the source to define.
236 Make sure we can still use pointer comparison on filenames. */
237 input_file* this_file;
238 /* The "system.h" file is likewise specially useful. */
239 input_file* system_h_file;
241 /* Vector of per-language directories. */
242 const char **lang_dir_names;
243 size_t num_lang_dirs;
245 /* An array of output files suitable for definitions. There is one
246 BASE_FILES entry for each language. */
247 static outf_p *base_files;
252 /* Utility debugging function, printing the various type counts within
253 a list of types. Called thru the DBGPRINT_COUNT_TYPE macro. */
255 dbgprint_count_type_at (const char *fil, int lin, const char *msg, type_p t)
257 int nb_types = 0, nb_scalar = 0, nb_string = 0;
258 int nb_struct = 0, nb_union = 0, nb_array = 0, nb_pointer = 0;
259 int nb_lang_struct = 0, nb_param_struct = 0;
261 for (p = t; p; p = p->next)
284 case TYPE_LANG_STRUCT:
287 case TYPE_PARAM_STRUCT:
294 fprintf (stderr, "\n" "%s:%d: %s: @@%%@@ %d types ::\n",
295 lbasename (fil), lin, msg, nb_types);
296 if (nb_scalar > 0 || nb_string > 0)
297 fprintf (stderr, "@@%%@@ %d scalars, %d strings\n", nb_scalar, nb_string);
298 if (nb_struct > 0 || nb_union > 0)
299 fprintf (stderr, "@@%%@@ %d structs, %d unions\n", nb_struct, nb_union);
300 if (nb_pointer > 0 || nb_array > 0)
301 fprintf (stderr, "@@%%@@ %d pointers, %d arrays\n", nb_pointer, nb_array);
302 if (nb_lang_struct > 0 || nb_param_struct > 0)
303 fprintf (stderr, "@@%%@@ %d lang_structs, %d param_structs\n",
304 nb_lang_struct, nb_param_struct);
305 fprintf (stderr, "\n");
307 #endif /* ENABLE_CHECKING */
309 /* Scan the input file, LIST, and determine how much space we need to
310 store strings in. Also, count the number of language directories
311 and files. The numbers returned are overestimates as they does not
312 consider repeated files. */
314 measure_input_list (FILE *list)
320 num_gt_files = plugin_files ? nb_plugin_files : 0;
321 while ((c = getc (list)) != EOF)
330 /* Add space for a lang_bitmap before the input file name. */
331 n += sizeof (lang_bitmap);
345 /* Read one input line from LIST to HEREP (which is updated). A
346 pointer to the string is returned via LINEP. If it was a language
347 subdirectory in square brackets, strip off the square brackets and
348 return true. Otherwise, leave space before the string for a
349 lang_bitmap, and return false. At EOF, returns false, does not
350 touch *HEREP, and sets *LINEP to NULL. POS is used for
353 read_input_line (FILE *list, char **herep, char **linep, struct fileloc *pos)
359 /* Read over whitespace. */
360 while (c == '\n' || c == ' ')
370 /* No space for a lang_bitmap is necessary. Discard the '['. */
373 while (c != ']' && c != '\n' && c != EOF)
382 c = getc (list); /* eat what should be a newline */
383 if (c != '\n' && c != EOF)
384 error_at_line (pos, "junk on line after language tag [%s]", line);
387 error_at_line (pos, "missing close bracket for language tag [%s",
396 /* Leave space for a lang_bitmap. */
397 memset (here, 0, sizeof (lang_bitmap));
398 here += sizeof (lang_bitmap);
405 while (c != EOF && c != '\n');
413 /* Read the list of input files from LIST and compute all of the
414 relevant tables. There is one file per line of the list. At
415 first, all the files on the list are language-generic, but
416 eventually a line will appear which is the name of a language
417 subdirectory in square brackets, like this: [cp]. All subsequent
418 files are specific to that language, until another language
419 subdirectory tag appears. Files can appear more than once, if
420 they apply to more than one language. */
422 read_input_list (const char *listname)
424 FILE *list = fopen (listname, "r");
426 fatal ("cannot open %s: %s", listname, xstrerror (errno));
430 size_t bufsz = measure_input_list (list);
431 char *buf = XNEWVEC (char, bufsz);
433 char *committed = buf;
434 char *limit = buf + bufsz;
439 lang_bitmap curlangs = (1 << num_lang_dirs) - 1;
441 epos.file = input_file_by_name (listname);
444 lang_dir_names = XNEWVEC (const char *, num_lang_dirs);
445 gt_files = XNEWVEC (const input_file *, num_gt_files);
452 is_language = read_input_line (list, &here, &line, &epos);
453 gcc_assert (here <= limit);
456 else if (is_language)
459 gcc_assert (langno <= num_lang_dirs);
460 for (i = 0; i < langno; i++)
461 if (strcmp (lang_dir_names[i], line) == 0)
463 error_at_line (&epos, "duplicate language tag [%s]",
470 curlangs = 1 << langno;
471 lang_dir_names[langno++] = line;
476 input_file *inpf = input_file_by_name (line);
477 gcc_assert (nfiles <= num_gt_files);
478 for (i = 0; i < nfiles; i++)
479 /* Since the input_file-s are uniquely hash-consed, we
480 can just compare pointers! */
481 if (gt_files[i] == inpf)
483 /* Throw away the string we just read, and add the
484 current language to the existing string's bitmap. */
485 lang_bitmap bmap = get_lang_bitmap (inpf);
487 error_at_line (&epos,
488 "file %s specified more than once "
489 "for language %s", line,
491 0 ? "(all)" : lang_dir_names[langno -
495 set_lang_bitmap (inpf, bmap);
500 set_lang_bitmap (inpf, curlangs);
501 gt_files[nfiles++] = inpf;
504 /* Update the global counts now that we know accurately how many
505 things there are. (We do not bother resizing the arrays down.) */
506 num_lang_dirs = langno;
507 /* Add the plugin files if provided. */
511 for (i = 0; i < nb_plugin_files; i++)
512 gt_files[nfiles++] = plugin_files[i];
514 num_gt_files = nfiles;
517 /* Sanity check: any file that resides in a language subdirectory
518 (e.g. 'cp') ought to belong to the corresponding language.
519 ??? Still true if for instance ObjC++ is enabled and C++ isn't?
520 (Can you even do that? Should you be allowed to?) */
523 for (f = 0; f < num_gt_files; f++)
525 lang_bitmap bitmap = get_lang_bitmap (gt_files[f]);
526 const char *basename = get_file_basename (gt_files[f]);
527 const char *slashpos = strchr (basename, '/');
532 for (l = 0; l < num_lang_dirs; l++)
533 if ((size_t) (slashpos - basename) == strlen (lang_dir_names[l])
534 && memcmp (basename, lang_dir_names[l],
535 strlen (lang_dir_names[l])) == 0)
537 if (!(bitmap & (1 << l)))
538 error ("%s is in language directory '%s' but is not "
539 "tagged for that language",
540 basename, lang_dir_names[l]);
548 fatal ("error reading %s: %s", listname, xstrerror (errno));
555 /* The one and only TYPE_STRING. */
557 static struct type string_type = {
558 TYPE_STRING, 0, 0, GC_USED, {0}
561 /* The two and only TYPE_SCALARs. Their u.scalar_is_char flags are
562 set to appropriate values at the beginning of main. */
564 static struct type scalar_nonchar = {
565 TYPE_SCALAR, 0, 0, GC_USED, {0}
568 static struct type scalar_char = {
569 TYPE_SCALAR, 0, 0, GC_USED, {0}
572 /* Lists of various things. */
574 static pair_p typedefs;
575 static type_p structures;
576 static type_p param_structs;
577 static pair_p variables;
579 static type_p find_param_structure (type_p t, type_p param[NUM_PARAM]);
580 static type_p adjust_field_tree_exp (type_p t, options_p opt);
581 static type_p adjust_field_rtx_def (type_p t, options_p opt);
583 /* Define S as a typedef to T at POS. */
586 do_typedef (const char *s, type_p t, struct fileloc *pos)
590 /* temporary kludge - gengtype doesn't handle conditionals or
591 macros. Ignore any attempt to typedef CUMULATIVE_ARGS, unless it
592 is coming from this file (main() sets them up with safe dummy
594 if (!strcmp (s, "CUMULATIVE_ARGS") && pos->file != this_file)
597 for (p = typedefs; p != NULL; p = p->next)
598 if (strcmp (p->name, s) == 0)
602 error_at_line (pos, "type `%s' previously defined", s);
603 error_at_line (&p->line, "previously defined here");
608 p = XNEW (struct pair);
617 /* Define S as a typename of a scalar. Cannot be used to define
618 typedefs of 'char'. Note: is also used for pointer-to-function
619 typedefs (which are therefore not treated as pointers). */
622 do_scalar_typedef (const char *s, struct fileloc *pos)
624 do_typedef (s, &scalar_nonchar, pos);
627 /* Return the type previously defined for S. Use POS to report errors. */
630 resolve_typedef (const char *s, struct fileloc *pos)
633 for (p = typedefs; p != NULL; p = p->next)
634 if (strcmp (p->name, s) == 0)
636 error_at_line (pos, "unidentified type `%s'", s);
637 return &scalar_nonchar; /* treat as "int" */
640 /* Create and return a new structure with tag NAME (or a union iff
641 ISUNION is nonzero), at POS with fields FIELDS and options O. */
644 new_structure (const char *name, int isunion, struct fileloc *pos,
645 pair_p fields, options_p o)
649 lang_bitmap bitmap = get_lang_bitmap (pos->file);
651 for (si = structures; si != NULL; si = si->next)
652 if (strcmp (name, si->u.s.tag) == 0 && UNION_P (si) == isunion)
655 if (si->kind == TYPE_LANG_STRUCT)
659 for (si = ls->u.s.lang_struct; si != NULL; si = si->next)
660 if (si->u.s.bitmap == bitmap)
663 else if (si->u.s.line.file != NULL && si->u.s.bitmap != bitmap)
666 si = XCNEW (struct type);
667 memcpy (si, ls, sizeof (struct type));
668 ls->kind = TYPE_LANG_STRUCT;
669 ls->u.s.lang_struct = si;
670 ls->u.s.fields = NULL;
672 si->pointer_to = NULL;
673 si->u.s.lang_struct = ls;
678 if (ls != NULL && s == NULL)
680 s = XCNEW (struct type);
681 s->next = ls->u.s.lang_struct;
682 ls->u.s.lang_struct = s;
683 s->u.s.lang_struct = ls;
690 s = XCNEW (struct type);
691 s->next = structures;
695 if (s->u.s.line.file != NULL
696 || (s->u.s.lang_struct && (s->u.s.lang_struct->u.s.bitmap & bitmap)))
698 error_at_line (pos, "duplicate definition of '%s %s'",
699 isunion ? "union" : "struct", s->u.s.tag);
700 error_at_line (&s->u.s.line, "previous definition here");
703 s->kind = isunion ? TYPE_UNION : TYPE_STRUCT;
706 s->u.s.fields = fields;
708 s->u.s.bitmap = bitmap;
709 if (s->u.s.lang_struct)
710 s->u.s.lang_struct->u.s.bitmap |= bitmap;
715 /* Return the previously-defined structure with tag NAME (or a union
716 iff ISUNION is nonzero), or a new empty structure or union if none
717 was defined previously. */
720 find_structure (const char *name, int isunion)
724 for (s = structures; s != NULL; s = s->next)
725 if (strcmp (name, s->u.s.tag) == 0 && UNION_P (s) == isunion)
728 s = XCNEW (struct type);
729 s->next = structures;
731 s->kind = isunion ? TYPE_UNION : TYPE_STRUCT;
737 /* Return the previously-defined parameterized structure for structure
738 T and parameters PARAM, or a new parameterized empty structure or
739 union if none was defined previously. */
742 find_param_structure (type_p t, type_p param[NUM_PARAM])
746 for (res = param_structs; res; res = res->next)
747 if (res->u.param_struct.stru == t
748 && memcmp (res->u.param_struct.param, param,
749 sizeof (type_p) * NUM_PARAM) == 0)
753 res = XCNEW (struct type);
754 res->kind = TYPE_PARAM_STRUCT;
755 res->next = param_structs;
757 res->u.param_struct.stru = t;
758 memcpy (res->u.param_struct.param, param, sizeof (type_p) * NUM_PARAM);
763 /* Return a scalar type with name NAME. */
766 create_scalar_type (const char *name)
768 if (!strcmp (name, "char") || !strcmp (name, "unsigned char"))
771 return &scalar_nonchar;
774 /* Return a pointer to T. */
777 create_pointer (type_p t)
781 type_p r = XCNEW (struct type);
782 r->kind = TYPE_POINTER;
786 return t->pointer_to;
789 /* Return an array of length LEN. */
792 create_array (type_p t, const char *len)
796 v = XCNEW (struct type);
797 v->kind = TYPE_ARRAY;
803 /* Return an options structure with name NAME and info INFO. NEXT is the
804 next option in the chain. */
807 create_option (options_p next, const char *name, const void *info)
809 options_p o = XNEW (struct options);
812 o->info = (const char *) info;
816 /* Return an options structure for a "nested_ptr" option. */
818 create_nested_ptr_option (options_p next, type_p t,
819 const char *to, const char *from)
821 struct nested_ptr_data *d = XNEW (struct nested_ptr_data);
823 d->type = adjust_field_type (t, 0);
825 d->convert_from = from;
826 return create_option (next, "nested_ptr", d);
829 /* Add a variable named S of type T with options O defined at POS,
833 note_variable (const char *s, type_p t, options_p o, struct fileloc *pos)
836 n = XNEW (struct pair);
845 /* Most-general structure field creator. */
847 create_field_all (pair_p next, type_p type, const char *name, options_p opt,
848 const input_file *inpf, int line)
852 field = XNEW (struct pair);
857 field->line.file = inpf;
858 field->line.line = line;
862 /* Create a field that came from the source code we are scanning,
863 i.e. we have a 'struct fileloc', and possibly options; also,
864 adjust_field_type should be called. */
866 create_field_at (pair_p next, type_p type, const char *name, options_p opt,
869 return create_field_all (next, adjust_field_type (type, opt),
870 name, opt, pos->file, pos->line);
873 /* Create a fake field with the given type and name. NEXT is the next
874 field in the chain. */
875 #define create_field(next,type,name) \
876 create_field_all(next,type,name, 0, this_file, __LINE__)
878 /* Like create_field, but the field is only valid when condition COND
882 create_optional_field_ (pair_p next, type_p type, const char *name,
883 const char *cond, int line)
889 /* Create a fake union type with a single nameless field of type TYPE.
890 The field has a tag of "1". This allows us to make the presence
891 of a field of type TYPE depend on some boolean "desc" being true. */
892 union_fields = create_field (NULL, type, "");
893 union_fields->opt = create_option (union_fields->opt, "dot", "");
894 union_fields->opt = create_option (union_fields->opt, "tag", "1");
895 union_type = new_structure (xasprintf ("%s_%d", "fake_union", id++), 1,
896 &lexer_line, union_fields, NULL);
898 /* Create the field and give it the new fake union type. Add a "desc"
899 tag that specifies the condition under which the field is valid. */
900 return create_field_all (next, union_type, name,
901 create_option (0, "desc", cond), this_file, line);
904 #define create_optional_field(next,type,name,cond) \
905 create_optional_field_(next,type,name,cond,__LINE__)
907 /* Reverse a linked list of 'struct pair's in place. */
909 nreverse_pairs (pair_p list)
911 pair_p prev = 0, p, next;
912 for (p = list; p; p = next)
922 /* We don't care how long a CONST_DOUBLE is. */
923 #define CONST_DOUBLE_FORMAT "ww"
924 /* We don't want to see codes that are only for generator files. */
925 #undef GENERATOR_FILE
929 #define DEF_RTL_EXPR(ENUM, NAME, FORMAT, CLASS) ENUM ,
935 static const char *const rtx_name[NUM_RTX_CODE] = {
936 #define DEF_RTL_EXPR(ENUM, NAME, FORMAT, CLASS) NAME ,
941 static const char *const rtx_format[NUM_RTX_CODE] = {
942 #define DEF_RTL_EXPR(ENUM, NAME, FORMAT, CLASS) FORMAT ,
947 static int rtx_next_new[NUM_RTX_CODE];
949 /* We also need codes and names for insn notes (not register notes).
950 Note that we do *not* bias the note values here. */
953 #define DEF_INSN_NOTE(NAME) NAME,
954 #include "insn-notes.def"
960 /* We must allocate one more entry here, as we use NOTE_INSN_MAX as the
961 default field for line number notes. */
962 static const char *const note_insn_name[NOTE_INSN_MAX + 1] = {
963 #define DEF_INSN_NOTE(NAME) #NAME,
964 #include "insn-notes.def"
968 #undef CONST_DOUBLE_FORMAT
969 #define GENERATOR_FILE
971 /* Generate the contents of the rtx_next array. This really doesn't belong
972 in gengtype at all, but it's needed for adjust_field_rtx_def. */
978 for (i = 0; i < NUM_RTX_CODE; i++)
982 rtx_next_new[i] = -1;
983 if (strncmp (rtx_format[i], "iuu", 3) == 0)
985 else if (i == COND_EXEC || i == SET || i == EXPR_LIST || i == INSN_LIST)
988 for (k = strlen (rtx_format[i]) - 1; k >= 0; k--)
989 if (rtx_format[i][k] == 'e' || rtx_format[i][k] == 'u')
994 /* Write out the contents of the rtx_next array. */
996 write_rtx_next (void)
998 outf_p f = get_output_file_with_visibility (NULL);
1003 oprintf (f, "\n/* Used to implement the RTX_NEXT macro. */\n");
1004 oprintf (f, "EXPORTED_CONST unsigned char rtx_next[NUM_RTX_CODE] = {\n");
1005 for (i = 0; i < NUM_RTX_CODE; i++)
1006 if (rtx_next_new[i] == -1)
1007 oprintf (f, " 0,\n");
1010 " RTX_HDR_SIZE + %d * sizeof (rtunion),\n", rtx_next_new[i]);
1011 oprintf (f, "};\n");
1014 /* Handle `special("rtx_def")'. This is a special case for field
1015 `fld' of struct rtx_def, which is an array of unions whose values
1016 are based in a complex way on the type of RTL. */
1019 adjust_field_rtx_def (type_p t, options_p ARG_UNUSED (opt))
1024 type_p rtx_tp, rtvec_tp, tree_tp, mem_attrs_tp, note_union_tp, scalar_tp;
1025 type_p basic_block_tp, reg_attrs_tp, constant_tp, symbol_union_tp;
1027 if (t->kind != TYPE_UNION)
1029 error_at_line (&lexer_line,
1030 "special `rtx_def' must be applied to a union");
1031 return &string_type;
1034 nodot = create_option (NULL, "dot", "");
1036 rtx_tp = create_pointer (find_structure ("rtx_def", 0));
1037 rtvec_tp = create_pointer (find_structure ("rtvec_def", 0));
1038 tree_tp = create_pointer (find_structure ("tree_node", 1));
1039 mem_attrs_tp = create_pointer (find_structure ("mem_attrs", 0));
1040 reg_attrs_tp = create_pointer (find_structure ("reg_attrs", 0));
1041 basic_block_tp = create_pointer (find_structure ("basic_block_def", 0));
1043 create_pointer (find_structure ("constant_descriptor_rtx", 0));
1044 scalar_tp = &scalar_nonchar; /* rtunion int */
1047 pair_p note_flds = NULL;
1050 for (c = 0; c <= NOTE_INSN_MAX; c++)
1055 case NOTE_INSN_DELETED_LABEL:
1056 note_flds = create_field (note_flds, &string_type, "rt_str");
1059 case NOTE_INSN_BLOCK_BEG:
1060 case NOTE_INSN_BLOCK_END:
1061 note_flds = create_field (note_flds, tree_tp, "rt_tree");
1064 case NOTE_INSN_VAR_LOCATION:
1065 note_flds = create_field (note_flds, rtx_tp, "rt_rtx");
1069 note_flds = create_field (note_flds, scalar_tp, "rt_int");
1072 /* NOTE_INSN_MAX is used as the default field for line
1074 if (c == NOTE_INSN_MAX)
1075 note_flds->opt = create_option (nodot, "default", "");
1077 note_flds->opt = create_option (nodot, "tag", note_insn_name[c]);
1079 note_union_tp = new_structure ("rtx_def_note_subunion", 1,
1080 &lexer_line, note_flds, NULL);
1082 /* Create a type to represent the various forms of SYMBOL_REF_DATA. */
1086 sym_flds = create_field (NULL, tree_tp, "rt_tree");
1087 sym_flds->opt = create_option (nodot, "default", "");
1089 sym_flds = create_field (sym_flds, constant_tp, "rt_constant");
1090 sym_flds->opt = create_option (nodot, "tag", "1");
1092 symbol_union_tp = new_structure ("rtx_def_symbol_subunion", 1,
1093 &lexer_line, sym_flds, NULL);
1095 for (i = 0; i < NUM_RTX_CODE; i++)
1097 pair_p subfields = NULL;
1098 size_t aindex, nmindex;
1103 for (aindex = 0; aindex < strlen (rtx_format[i]); aindex++)
1106 const char *subname;
1108 switch (rtx_format[i][aindex])
1119 if (i == MEM && aindex == 1)
1120 t = mem_attrs_tp, subname = "rt_mem";
1121 else if (i == JUMP_INSN && aindex == 8)
1122 t = rtx_tp, subname = "rt_rtx";
1123 else if (i == CODE_LABEL && aindex == 5)
1124 t = scalar_tp, subname = "rt_int";
1125 else if (i == CODE_LABEL && aindex == 4)
1126 t = rtx_tp, subname = "rt_rtx";
1127 else if (i == LABEL_REF && (aindex == 1 || aindex == 2))
1128 t = rtx_tp, subname = "rt_rtx";
1129 else if (i == NOTE && aindex == 4)
1130 t = note_union_tp, subname = "";
1131 else if (i == NOTE && aindex == 5)
1132 t = scalar_tp, subname = "rt_int";
1133 else if (i == NOTE && aindex >= 7)
1134 t = scalar_tp, subname = "rt_int";
1135 else if (i == ADDR_DIFF_VEC && aindex == 4)
1136 t = scalar_tp, subname = "rt_int";
1137 else if (i == VALUE && aindex == 0)
1138 t = scalar_tp, subname = "rt_int";
1139 else if (i == DEBUG_EXPR && aindex == 0)
1140 t = tree_tp, subname = "rt_tree";
1141 else if (i == REG && aindex == 1)
1142 t = scalar_tp, subname = "rt_int";
1143 else if (i == REG && aindex == 2)
1144 t = reg_attrs_tp, subname = "rt_reg";
1145 else if (i == SCRATCH && aindex == 0)
1146 t = scalar_tp, subname = "rt_int";
1147 else if (i == SYMBOL_REF && aindex == 1)
1148 t = scalar_tp, subname = "rt_int";
1149 else if (i == SYMBOL_REF && aindex == 2)
1150 t = symbol_union_tp, subname = "";
1151 else if (i == BARRIER && aindex >= 3)
1152 t = scalar_tp, subname = "rt_int";
1155 error_at_line (&lexer_line,
1156 "rtx type `%s' has `0' in position %lu, can't handle",
1157 rtx_name[i], (unsigned long) aindex);
1179 subname = "rt_rtvec";
1184 subname = "rt_tree";
1193 error_at_line (&lexer_line,
1194 "rtx type `%s' has `%c' in position %lu, can't handle",
1195 rtx_name[i], rtx_format[i][aindex],
1196 (unsigned long) aindex);
1202 subfields = create_field (subfields, t,
1203 xasprintf (".fld[%lu].%s",
1204 (unsigned long) aindex,
1206 subfields->opt = nodot;
1207 if (t == note_union_tp)
1208 subfields->opt = create_option (subfields->opt, "desc",
1210 if (t == symbol_union_tp)
1211 subfields->opt = create_option (subfields->opt, "desc",
1212 "CONSTANT_POOL_ADDRESS_P (&%0)");
1215 if (i == SYMBOL_REF)
1217 /* Add the "block_sym" field if SYMBOL_REF_HAS_BLOCK_INFO_P holds. */
1218 type_p field_tp = find_structure ("block_symbol", 0);
1220 = create_optional_field (subfields, field_tp, "block_sym",
1221 "SYMBOL_REF_HAS_BLOCK_INFO_P (&%0)");
1224 sname = xasprintf ("rtx_def_%s", rtx_name[i]);
1225 substruct = new_structure (sname, 0, &lexer_line, subfields, NULL);
1227 ftag = xstrdup (rtx_name[i]);
1228 for (nmindex = 0; nmindex < strlen (ftag); nmindex++)
1229 ftag[nmindex] = TOUPPER (ftag[nmindex]);
1231 flds = create_field (flds, substruct, "");
1232 flds->opt = create_option (nodot, "tag", ftag);
1235 return new_structure ("rtx_def_subunion", 1, &lexer_line, flds, nodot);
1238 /* Handle `special("tree_exp")'. This is a special case for
1239 field `operands' of struct tree_exp, which although it claims to contain
1240 pointers to trees, actually sometimes contains pointers to RTL too.
1241 Passed T, the old type of the field, and OPT its options. Returns
1242 a new type for the field. */
1245 adjust_field_tree_exp (type_p t, options_p opt ATTRIBUTE_UNUSED)
1250 if (t->kind != TYPE_ARRAY)
1252 error_at_line (&lexer_line,
1253 "special `tree_exp' must be applied to an array");
1254 return &string_type;
1257 nodot = create_option (NULL, "dot", "");
1259 flds = create_field (NULL, t, "");
1260 flds->opt = create_option (nodot, "length",
1261 "TREE_OPERAND_LENGTH ((tree) &%0)");
1262 flds->opt = create_option (flds->opt, "default", "");
1264 return new_structure ("tree_exp_subunion", 1, &lexer_line, flds, nodot);
1267 /* Perform any special processing on a type T, about to become the type
1268 of a field. Return the appropriate type for the field.
1270 - Converts pointer-to-char, with no length parameter, to TYPE_STRING;
1271 - Similarly for arrays of pointer-to-char;
1272 - Converts structures for which a parameter is provided to
1274 - Handles "special" options.
1278 adjust_field_type (type_p t, options_p opt)
1281 const int pointer_p = t->kind == TYPE_POINTER;
1282 type_p params[NUM_PARAM];
1286 for (i = 0; i < NUM_PARAM; i++)
1289 for (; opt; opt = opt->next)
1290 if (strcmp (opt->name, "length") == 0)
1292 else if (strcmp (opt->name, "param_is") == 0
1293 || (strncmp (opt->name, "param", 5) == 0
1294 && ISDIGIT (opt->name[5])
1295 && strcmp (opt->name + 6, "_is") == 0))
1297 int num = ISDIGIT (opt->name[5]) ? opt->name[5] - '0' : 0;
1299 if (!UNION_OR_STRUCT_P (t)
1300 && (t->kind != TYPE_POINTER || !UNION_OR_STRUCT_P (t->u.p)))
1302 error_at_line (&lexer_line,
1303 "option `%s' may only be applied to structures or structure pointers",
1309 if (params[num] != NULL)
1310 error_at_line (&lexer_line, "duplicate `%s' option", opt->name);
1311 if (!ISDIGIT (opt->name[5]))
1313 create_pointer (CONST_CAST2 (type_p, const char *, opt->info));
1315 params[num] = CONST_CAST2 (type_p, const char *, opt->info);
1317 else if (strcmp (opt->name, "special") == 0)
1319 const char *special_name = opt->info;
1320 if (strcmp (special_name, "tree_exp") == 0)
1321 t = adjust_field_tree_exp (t, opt);
1322 else if (strcmp (special_name, "rtx_def") == 0)
1323 t = adjust_field_rtx_def (t, opt);
1325 error_at_line (&lexer_line, "unknown special `%s'", special_name);
1334 realt = find_param_structure (t, params);
1335 t = pointer_p ? create_pointer (realt) : realt;
1339 && pointer_p && t->u.p->kind == TYPE_SCALAR && t->u.p->u.scalar_is_char)
1340 return &string_type;
1341 if (t->kind == TYPE_ARRAY && t->u.a.p->kind == TYPE_POINTER
1342 && t->u.a.p->u.p->kind == TYPE_SCALAR
1343 && t->u.a.p->u.p->u.scalar_is_char)
1344 return create_array (&string_type, t->u.a.len);
1350 static void set_gc_used_type (type_p, enum gc_used_enum, type_p *);
1351 static void set_gc_used (pair_p);
1353 /* Handle OPT for set_gc_used_type. */
1356 process_gc_options (options_p opt, enum gc_used_enum level, int *maybe_undef,
1357 int *pass_param, int *length, int *skip,
1361 for (o = opt; o; o = o->next)
1362 if (strcmp (o->name, "ptr_alias") == 0 && level == GC_POINTED_TO)
1363 set_gc_used_type (CONST_CAST2 (type_p, const char *, o->info),
1364 GC_POINTED_TO, NULL);
1365 else if (strcmp (o->name, "maybe_undef") == 0)
1367 else if (strcmp (o->name, "use_params") == 0)
1369 else if (strcmp (o->name, "length") == 0)
1371 else if (strcmp (o->name, "skip") == 0)
1373 else if (strcmp (o->name, "nested_ptr") == 0)
1374 *nested_ptr = ((const struct nested_ptr_data *) o->info)->type;
1377 /* Set the gc_used field of T to LEVEL, and handle the types it references. */
1380 set_gc_used_type (type_p t, enum gc_used_enum level, type_p param[NUM_PARAM])
1382 if (t->gc_used >= level)
1396 process_gc_options (t->u.s.opt, level, &dummy, &dummy, &dummy, &dummy,
1399 for (f = t->u.s.fields; f; f = f->next)
1401 int maybe_undef = 0;
1405 type_p nested_ptr = NULL;
1406 process_gc_options (f->opt, level, &maybe_undef, &pass_param,
1407 &length, &skip, &nested_ptr);
1409 if (nested_ptr && f->type->kind == TYPE_POINTER)
1410 set_gc_used_type (nested_ptr, GC_POINTED_TO,
1411 pass_param ? param : NULL);
1412 else if (length && f->type->kind == TYPE_POINTER)
1413 set_gc_used_type (f->type->u.p, GC_USED, NULL);
1414 else if (maybe_undef && f->type->kind == TYPE_POINTER)
1415 set_gc_used_type (f->type->u.p, GC_MAYBE_POINTED_TO, NULL);
1416 else if (pass_param && f->type->kind == TYPE_POINTER && param)
1417 set_gc_used_type (find_param_structure (f->type->u.p, param),
1418 GC_POINTED_TO, NULL);
1420 ; /* target type is not used through this field */
1422 set_gc_used_type (f->type, GC_USED, pass_param ? param : NULL);
1428 set_gc_used_type (t->u.p, GC_POINTED_TO, NULL);
1432 set_gc_used_type (t->u.a.p, GC_USED, param);
1435 case TYPE_LANG_STRUCT:
1436 for (t = t->u.s.lang_struct; t; t = t->next)
1437 set_gc_used_type (t, level, param);
1440 case TYPE_PARAM_STRUCT:
1443 for (i = 0; i < NUM_PARAM; i++)
1444 if (t->u.param_struct.param[i] != 0)
1445 set_gc_used_type (t->u.param_struct.param[i], GC_USED, NULL);
1447 if (t->u.param_struct.stru->gc_used == GC_POINTED_TO)
1448 level = GC_POINTED_TO;
1451 t->u.param_struct.stru->gc_used = GC_UNUSED;
1452 set_gc_used_type (t->u.param_struct.stru, level,
1453 t->u.param_struct.param);
1461 /* Set the gc_used fields of all the types pointed to by VARIABLES. */
1464 set_gc_used (pair_p variables)
1468 for (p = variables; p; p = p->next)
1470 set_gc_used_type (p->type, GC_USED, NULL);
1473 if (verbosity_level >= 2)
1474 printf ("%s used %d GTY-ed variables\n", progname, nbvars);
1477 /* File mapping routines. For each input file, there is one output .c file
1478 (but some output files have many input files), and there is one .h file
1479 for the whole build. */
1481 /* Output file handling. */
1483 /* Create and return an outf_p for a new file for NAME, to be called
1487 create_file (const char *name, const char *oname)
1489 static const char *const hdr[] = {
1490 " Copyright (C) 2004, 2007, 2009 Free Software Foundation, Inc.\n",
1492 "This file is part of GCC.\n",
1494 "GCC is free software; you can redistribute it and/or modify it under\n",
1495 "the terms of the GNU General Public License as published by the Free\n",
1496 "Software Foundation; either version 3, or (at your option) any later\n",
1499 "GCC is distributed in the hope that it will be useful, but WITHOUT ANY\n",
1500 "WARRANTY; without even the implied warranty of MERCHANTABILITY or\n",
1501 "FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License\n",
1502 "for more details.\n",
1504 "You should have received a copy of the GNU General Public License\n",
1505 "along with GCC; see the file COPYING3. If not see\n",
1506 "<http://www.gnu.org/licenses/>. */\n",
1508 "/* This file is machine generated. Do not edit. */\n"
1513 gcc_assert (name != NULL);
1514 gcc_assert (oname != NULL);
1515 f = XCNEW (struct outf);
1516 f->next = output_files;
1520 oprintf (f, "/* Type information for %s.\n", name);
1521 for (i = 0; i < ARRAY_SIZE (hdr); i++)
1522 oprintf (f, "%s", hdr[i]);
1526 /* Print, like fprintf, to O.
1527 N.B. You might think this could be implemented more efficiently
1528 with vsnprintf(). Unfortunately, there are C libraries that
1529 provide that function but without the C99 semantics for its return
1530 value, making it impossible to know how much space is required. */
1532 oprintf (outf_p o, const char *format, ...)
1538 /* In plugin mode, the O could be a NULL pointer, so avoid crashing
1543 va_start (ap, format);
1544 slength = vasprintf (&s, format, ap);
1545 if (s == NULL || (int) slength < 0)
1546 fatal ("out of memory");
1549 if (o->bufused + slength > o->buflength)
1551 size_t new_len = o->buflength;
1558 while (o->bufused + slength >= new_len);
1559 o->buf = XRESIZEVEC (char, o->buf, new_len);
1560 o->buflength = new_len;
1562 memcpy (o->buf + o->bufused, s, slength);
1563 o->bufused += slength;
1567 /* Open the global header file and the language-specific header files. */
1570 open_base_files (void)
1574 if (nb_plugin_files > 0 && plugin_files)
1577 header_file = create_file ("GCC", "gtype-desc.h");
1579 base_files = XNEWVEC (outf_p, num_lang_dirs);
1581 for (i = 0; i < num_lang_dirs; i++)
1582 base_files[i] = create_file (lang_dir_names[i],
1583 xasprintf ("gtype-%s.h", lang_dir_names[i]));
1585 /* gtype-desc.c is a little special, so we create it here. */
1587 /* The order of files here matters very much. */
1588 static const char *const ifiles[] = {
1589 "config.h", "system.h", "coretypes.h", "tm.h",
1590 "hashtab.h", "splay-tree.h", "obstack.h", "bitmap.h", "input.h",
1591 "tree.h", "rtl.h", "function.h", "insn-config.h", "expr.h",
1592 "hard-reg-set.h", "basic-block.h", "cselib.h", "insn-addr.h",
1593 "optabs.h", "libfuncs.h", "debug.h", "ggc.h", "cgraph.h",
1594 "tree-flow.h", "reload.h", "cpp-id-data.h", "tree-chrec.h",
1595 "cfglayout.h", "except.h", "output.h", "gimple.h", "cfgloop.h",
1596 "target.h", "ipa-prop.h", "lto-streamer.h", "target-globals.h", NULL
1598 const char *const *ifp;
1599 outf_p gtype_desc_c;
1601 gtype_desc_c = create_file ("GCC", "gtype-desc.c");
1602 for (ifp = ifiles; *ifp; ifp++)
1603 oprintf (gtype_desc_c, "#include \"%s\"\n", *ifp);
1605 /* Make sure we handle "cfun" specially. */
1606 oprintf (gtype_desc_c, "\n/* See definition in function.h. */\n");
1607 oprintf (gtype_desc_c, "#undef cfun\n");
1611 /* For INPF an input file, return the real basename of INPF, with all
1612 the directory components skipped. */
1615 get_file_realbasename (const input_file *inpf)
1617 const char *f = get_input_file_name (inpf);
1618 const char *lastslash = strrchr (f, '/');
1620 return (lastslash != NULL) ? lastslash + 1 : f;
1623 /* For INPF a filename, return the relative path to INPF from
1624 $(srcdir) if the latter is a prefix in INPF, NULL otherwise. */
1627 get_file_srcdir_relative_path (const input_file *inpf)
1629 const char *f = get_input_file_name (inpf);
1630 if (strlen (f) > srcdir_len
1631 && IS_DIR_SEPARATOR (f[srcdir_len])
1632 && strncmp (f, srcdir, srcdir_len) == 0)
1633 return f + srcdir_len + 1;
1638 /* For INPF an input_file, return the relative path to INPF from
1639 $(srcdir) if the latter is a prefix in INPF, or the real basename
1640 of INPF otherwise. */
1643 get_file_basename (const input_file *inpf)
1645 const char *srcdir_path = get_file_srcdir_relative_path (inpf);
1647 return (srcdir_path != NULL) ? srcdir_path : get_file_realbasename (inpf);
1650 /* For F a filename, return the lang_dir_names relative index of the language
1651 directory that is a prefix in F, if any, -1 otherwise. */
1654 get_prefix_langdir_index (const char *f)
1656 size_t f_len = strlen (f);
1659 for (lang_index = 0; lang_index < num_lang_dirs; lang_index++)
1661 const char *langdir = lang_dir_names[lang_index];
1662 size_t langdir_len = strlen (langdir);
1664 if (f_len > langdir_len
1665 && IS_DIR_SEPARATOR (f[langdir_len])
1666 && memcmp (f, langdir, langdir_len) == 0)
1673 /* For INPF an input file, return the name of language directory where
1674 F is located, if any, NULL otherwise. */
1677 get_file_langdir (const input_file *inpf)
1679 /* Get the relative path to INPF from $(srcdir) and find the
1680 language by comparing the prefix with language directory names.
1681 If INPF is not even srcdir relative, no point in looking
1685 const char *srcdir_relative_path = get_file_srcdir_relative_path (inpf);
1688 if (!srcdir_relative_path)
1691 lang_index = get_prefix_langdir_index (srcdir_relative_path);
1692 if (lang_index < 0 && strncmp (srcdir_relative_path, "c-family", 8) == 0)
1694 else if (lang_index >= 0)
1695 r = lang_dir_names[lang_index];
1702 /* The gt- output file name for INPF. */
1705 get_file_gtfilename (const input_file *inpf)
1707 /* Cook up an initial version of the gt- file name from the file real
1708 basename and the language name, if any. */
1710 const char *basename = get_file_realbasename (inpf);
1711 const char *langdir = get_file_langdir (inpf);
1714 (langdir ? xasprintf ("gt-%s-%s", langdir, basename)
1715 : xasprintf ("gt-%s", basename));
1717 /* Then replace all non alphanumerics characters by '-' and change the
1718 extension to ".h". We expect the input filename extension was at least
1719 one character long. */
1723 for (; *s != '.'; s++)
1724 if (!ISALNUM (*s) && *s != '-')
1727 memcpy (s, ".h", sizeof (".h"));
1732 /* Each input_file has its associated output file outf_p. The
1733 association is computed by the function
1734 get_output_file_with_visibility. The associated file is cached
1735 inside input_file in its inpoutf field, so is really computed only
1736 once. Associated output file paths (i.e. output_name-s) are
1737 computed by a rule based regexp machinery, using the files_rules
1738 array of struct file_rule_st. A for_name is also computed, giving
1739 the source file name for which the output_file is generated; it is
1740 often the last component of the input_file path. */
1744 Regexpr machinery to compute the output_name and for_name-s of each
1745 input_file. We have a sequence of file rules which gives the POSIX
1746 extended regular expression to match an input file path, and two
1747 transformed strings for the corresponding output_name and the
1748 corresponding for_name. The transformed string contain dollars: $0
1749 is replaced by the entire match, $1 is replaced by the substring
1750 matching the first parenthesis in the regexp, etc. And $$ is replaced
1751 by a single verbatim dollar. The rule order is important. The
1752 general case is last, and the particular cases should come before.
1753 An action routine can, when needed, update the out_name & for_name
1754 and/or return the appropriate output file. It is invoked only when a
1755 rule is triggered. When a rule is triggered, the output_name and
1756 for_name are computed using their transform string in while $$, $0,
1757 $1, ... are suitably replaced. If there is an action, it is called.
1758 In some few cases, the action can directly return the outf_p, but
1759 usually it just updates the output_name and for_name so should free
1760 them before replacing them. The get_output_file_with_visibility
1761 function creates an outf_p only once per each output_name, so it
1762 scans the output_files list for previously seen output file names.
1765 /* Signature of actions in file rules. */
1766 typedef outf_p (frul_actionrout_t) (input_file*, char**, char**);
1769 struct file_rule_st {
1770 const char* frul_srcexpr; /* Source string for regexp. */
1771 int frul_rflags; /* Flags passed to regcomp, usually
1773 regex_t* frul_re; /* Compiled regular expression
1774 obtained by regcomp. */
1775 const char* frul_tr_out; /* Transformation string for making
1776 * the output_name, with $1 ... $9 for
1777 * subpatterns and $0 for the whole
1778 * matched filename. */
1779 const char* frul_tr_for; /* Tranformation string for making the
1781 frul_actionrout_t* frul_action; /* The action, if non null, is
1782 * called once the rule matches, on
1783 * the transformed out_name &
1784 * for_name. It could change them
1785 * and/or give the output file. */
1788 /* File rule action handling *.h files. */
1789 static outf_p header_dot_h_frul (input_file*, char**, char**);
1791 /* File rule action handling *.c files. */
1792 static outf_p source_dot_c_frul (input_file*, char**, char**);
1794 #define NULL_REGEX (regex_t*)0
1796 /* The prefix in our regexp-s matching the directory. */
1797 #define DIR_PREFIX_REGEX "^(([^/]*/)*)"
1799 #define NULL_FRULACT (frul_actionrout_t*)0
1801 /* The array of our rules governing file name generation. Rules order
1802 matters, so change with extreme care! */
1804 struct file_rule_st files_rules[] = {
1805 /* the c-family/ source directory is special. */
1806 { DIR_PREFIX_REGEX "c-family/([[:alnum:]_-]*)\\.c$",
1807 REG_EXTENDED, NULL_REGEX,
1808 "gt-c-family-$3.h", "c-family/$3.c", NULL_FRULACT},
1810 { DIR_PREFIX_REGEX "c-family/([[:alnum:]_-]*)\\.h$",
1811 REG_EXTENDED, NULL_REGEX,
1812 "gt-c-family-$3.h", "c-family/$3.h", NULL_FRULACT},
1814 /* Both c-lang.h & c-tree.h gives gt-c-decl.h for c-decl.c ! */
1815 { DIR_PREFIX_REGEX "c-lang\\.h$",
1816 REG_EXTENDED, NULL_REGEX, "gt-c-decl.h", "c-decl.c", NULL_FRULACT},
1818 { DIR_PREFIX_REGEX "c-tree\\.h$",
1819 REG_EXTENDED, NULL_REGEX, "gt-c-decl.h", "c-decl.c", NULL_FRULACT},
1821 /* cp/cp-tree.h gives gt-cp-tree.h for cp/tree.c ! */
1822 { DIR_PREFIX_REGEX "cp/cp-tree\\.h$",
1823 REG_EXTENDED, NULL_REGEX,
1824 "gt-cp-tree.h", "cp/tree.c", NULL_FRULACT },
1826 /* cp/decl.h & cp/decl.c gives gt-cp-decl.h for cp/decl.c ! */
1827 { DIR_PREFIX_REGEX "cp/decl\\.[ch]$",
1828 REG_EXTENDED, NULL_REGEX,
1829 "gt-cp-decl.h", "cp/decl.c", NULL_FRULACT },
1831 /* cp/name-lookup.h gives gt-cp-name-lookup.h for cp/name-lookup.c ! */
1832 { DIR_PREFIX_REGEX "cp/name-lookup\\.h$",
1833 REG_EXTENDED, NULL_REGEX,
1834 "gt-cp-name-lookup.h", "cp/name-lookup.c", NULL_FRULACT },
1836 /* objc/objc-act.h fives gt-objc-objc-act.h for objc/objc-act.c ! */
1837 { DIR_PREFIX_REGEX "objc/objc-act\\.h$",
1838 REG_EXTENDED, NULL_REGEX,
1839 "gt-objc-objc-act.h", "objc/objc-act.c", NULL_FRULACT },
1841 /* General cases. For header *.h and source *.c files, we need
1842 * special actions to handle the language. */
1844 /* Source *.c files are using get_file_gtfilename to compute their
1845 output_name and get_file_basename to compute their for_name
1846 thru the source_dot_c_frul action. */
1847 { DIR_PREFIX_REGEX "([[:alnum:]_-]*)\\.c$",
1848 REG_EXTENDED, NULL_REGEX, "gt-$3.h", "$3.c", source_dot_c_frul},
1849 /* Common header files get "gtype-desc.c" as their output_name,
1850 * while language specific header files are handled specially. So
1851 * we need the header_dot_h_frul action. */
1852 { DIR_PREFIX_REGEX "([[:alnum:]_-]*)\\.h$",
1853 REG_EXTENDED, NULL_REGEX, "gt-$3.h", "$3.h", header_dot_h_frul},
1855 { DIR_PREFIX_REGEX "([[:alnum:]_-]*)\\.in$",
1856 REG_EXTENDED, NULL_REGEX, "gt-$3.h", "$3.in", NULL_FRULACT},
1858 /* Mandatory null last entry signaling end of rules. */
1859 {NULL, 0, NULL_REGEX, NULL, NULL, NULL_FRULACT}
1862 /* Special file rules action for handling *.h header files. It gives
1863 "gtype-desc.c" for common headers and corresponding output
1864 files for language-specific header files. */
1866 header_dot_h_frul (input_file* inpf, char**poutname, char**pforname)
1868 const char *basename = 0;
1870 const char *inpname = get_input_file_name (inpf);
1871 DBGPRINTF ("inpf %p inpname %s outname %s forname %s",
1872 (void*) inpf, inpname, *poutname, *pforname);
1873 basename = get_file_basename (inpf);
1874 lang_index = get_prefix_langdir_index (basename);
1875 DBGPRINTF ("basename %s lang_index %d", basename, lang_index);
1877 if (lang_index >= 0)
1879 /* The header is language specific. Given output_name &
1880 for_name remains unchanged. The base_files array gives the
1882 DBGPRINTF ("header_dot_h found language specific @ %p '%s'",
1883 (void*) base_files[lang_index],
1884 (base_files[lang_index])->name);
1885 return base_files[lang_index];
1889 /* The header is common to all front-end languages. So
1890 output_name is "gtype-desc.c" file. The calling function
1891 get_output_file_with_visibility will find its outf_p. */
1893 *poutname = xstrdup ("gtype-desc.c");
1894 DBGPRINTF ("special 'gtype-desc.c' for inpname %s", inpname);
1900 /* Special file rules action for handling *.c source files using
1901 * get_file_gtfilename to compute their output_name and
1902 * get_file_basename to compute their for_name. The output_name is
1903 * gt-<LANG>-<BASE>.h for language specific source files, and
1904 * gt-<BASE>.h for common source files. */
1906 source_dot_c_frul (input_file* inpf, char**poutname, char**pforname)
1908 char *newbasename = CONST_CAST (char*, get_file_basename (inpf));
1909 char *newoutname = CONST_CAST (char*, get_file_gtfilename (inpf));
1910 const char *inpname = get_input_file_name (inpf);
1911 DBGPRINTF ("inpf %p inpname %s original outname %s forname %s",
1912 (void*) inpf, inpname, *poutname, *pforname);
1913 DBGPRINTF ("newoutname %s", newoutname);
1914 DBGPRINTF ("newbasename %s", newbasename);
1917 *poutname = newoutname;
1918 *pforname = newbasename;
1922 /* Utility function for get_output_file_with_visibility which returns
1923 * a malloc-ed substituted string using TRS on matching of the FILNAM
1924 * file name, using the PMATCH array. */
1926 matching_file_name_substitute (const char *filnam, regmatch_t pmatch[10],
1929 struct obstack str_obstack;
1931 char *rawstr = NULL;
1932 const char *pt = NULL;
1933 DBGPRINTF ("filnam %s", filnam);
1934 obstack_init (&str_obstack);
1935 for (pt = trs; *pt; pt++) {
1941 /* A double dollar $$ is substituted by a single verbatim
1942 dollar, but who really uses dollar signs in file
1944 obstack_1grow (&str_obstack, '$');
1946 else if (ISDIGIT (pt[1]))
1948 /* Handle $0 $1 ... $9 by appropriate substitution. */
1949 int dolnum = pt[1] - '0';
1950 int so = pmatch[dolnum].rm_so;
1951 int eo = pmatch[dolnum].rm_eo;
1952 DBGPRINTF ("so=%d eo=%d dolnum=%d", so, eo, dolnum);
1953 if (so>=0 && eo>=so)
1954 obstack_grow (&str_obstack, filnam + so, eo - so);
1958 /* This can happen only when files_rules is buggy! */
1961 /* Always skip the character after the dollar. */
1965 obstack_1grow (&str_obstack, c);
1967 obstack_1grow (&str_obstack, '\0');
1968 rawstr = XOBFINISH (&str_obstack, char *);
1969 str = xstrdup (rawstr);
1970 obstack_free (&str_obstack, rawstr);
1971 DBGPRINTF ("matched replacement %s", str);
1977 /* An output file, suitable for definitions, that can see declarations
1978 made in INPF and is linked into every language that uses INPF.
1979 Since the the result is cached inside INPF, that argument cannot be
1980 declared constant, but is "almost" constant. */
1983 get_output_file_with_visibility (input_file *inpf)
1986 char *for_name = NULL;
1987 char *output_name = NULL;
1988 const char* inpfname;
1990 /* This can happen when we need a file with visibility on a
1991 structure that we've never seen. We have to just hope that it's
1992 globally visible. */
1994 inpf = system_h_file;
1996 /* The result is cached in INPF, so return it if already known. */
1998 return inpf->inpoutf;
2000 /* In plugin mode, return NULL unless the input_file is one of the
2005 for (i = 0; i < nb_plugin_files; i++)
2006 if (inpf == plugin_files[i])
2008 inpf->inpoutf = plugin_output;
2009 return plugin_output;
2015 inpfname = get_input_file_name (inpf);
2017 /* Try each rule in sequence in files_rules until one is triggered. */
2020 DBGPRINTF ("passing input file @ %p named %s thru the files_rules",
2021 (void*) inpf, inpfname);
2023 for (; files_rules[rulix].frul_srcexpr != NULL; rulix++)
2025 DBGPRINTF ("rulix#%d srcexpr %s",
2026 rulix, files_rules[rulix].frul_srcexpr);
2028 if (!files_rules[rulix].frul_re)
2030 /* Compile the regexpr lazily. */
2032 files_rules[rulix].frul_re = XCNEW (regex_t);
2033 err = regcomp (files_rules[rulix].frul_re,
2034 files_rules[rulix].frul_srcexpr,
2035 files_rules[rulix].frul_rflags);
2038 /* The regular expression compilation fails only when
2039 file_rules is buggy. */
2047 /* Match the regexpr and trigger the rule if matched. */
2049 /* We have exactly ten pmatch-s, one for each $0, $1, $2,
2051 regmatch_t pmatch[10];
2052 memset (pmatch, 0, sizeof (pmatch));
2053 if (!regexec (files_rules[rulix].frul_re,
2054 inpfname, 10, pmatch, 0))
2056 DBGPRINTF ("input @ %p filename %s matched rulix#%d pattern %s",
2057 (void*) inpf, inpfname, rulix,
2058 files_rules[rulix].frul_srcexpr);
2060 matching_file_name_substitute (inpfname, pmatch,
2061 files_rules[rulix].frul_tr_for);
2062 DBGPRINTF ("for_name %s", for_name);
2064 matching_file_name_substitute (inpfname, pmatch,
2065 files_rules[rulix].frul_tr_out);
2066 DBGPRINTF ("output_name %s", output_name);
2067 if (files_rules[rulix].frul_action)
2069 /* Invoke our action routine. */
2071 DBGPRINTF ("before action rulix#%d output_name %s for_name %s",
2072 rulix, output_name, for_name);
2074 (files_rules[rulix].frul_action) (inpf,
2075 &output_name, &for_name);
2076 DBGPRINTF ("after action rulix#%d of=%p output_name %s for_name %s",
2077 rulix, (void*)of, output_name, for_name);
2078 /* If the action routine returned something, give it back
2079 immediately and cache it in inpf. */
2086 /* The rule matched, and had no action, or that action did
2087 not return any output file but could have changed the
2088 output_name or for_name. We break out of the loop on the
2094 /* The regexpr did not match. */
2095 DBGPRINTF ("rulix#%d did not match %s pattern %s",
2096 rulix, inpfname, files_rules[rulix].frul_srcexpr);
2102 if (!output_name || !for_name)
2104 /* This is impossible, and could only happen if the files_rules is
2105 incomplete or buggy. */
2109 /* Look through to see if we've ever seen this output filename
2110 before. If found, cache the result in inpf. */
2111 for (r = output_files; r; r = r->next)
2112 if (strcmp (r->name, output_name) == 0)
2115 DBGPRINTF ("found r @ %p for output_name %s for_name %s", (void*)r,
2116 output_name, for_name);
2120 /* If not found, create it, and cache it in inpf. */
2121 r = create_file (for_name, output_name);
2123 gcc_assert (r && r->name);
2124 DBGPRINTF ("created r @ %p for output_name %s for_name %s", (void*) r,
2125 output_name, for_name);
2132 /* The name of an output file, suitable for definitions, that can see
2133 declarations made in INPF and is linked into every language that
2137 get_output_file_name (input_file* inpf)
2139 outf_p o = get_output_file_with_visibility (inpf);
2145 /* Check if existing file is equal to the in memory buffer. */
2148 is_file_equal (outf_p of)
2150 FILE *newfile = fopen (of->name, "r");
2153 if (newfile == NULL)
2157 for (i = 0; i < of->bufused; i++)
2160 ch = fgetc (newfile);
2161 if (ch == EOF || ch != (unsigned char) of->buf[i])
2171 /* Copy the output to its final destination,
2172 but don't unnecessarily change modification times. */
2175 close_output_files (void)
2177 int nbwrittenfiles = 0;
2180 for (of = output_files; of; of = of->next)
2183 if (!is_file_equal (of))
2185 FILE *newfile = NULL;
2186 char *backupname = NULL;
2187 /* Back up the old version of the output file gt-FOO.c as
2188 BACKUPDIR/gt-FOO.c~ if we have a backup directory. */
2191 backupname = concat (backup_dir, "/",
2192 lbasename (of->name), "~", NULL);
2193 if (!access (of->name, F_OK) && rename (of->name, backupname))
2194 fatal ("failed to back up %s as %s: %s",
2195 of->name, backupname, xstrerror (errno));
2198 newfile = fopen (of->name, "w");
2199 if (newfile == NULL)
2200 fatal ("opening output file %s: %s", of->name, xstrerror (errno));
2201 if (fwrite (of->buf, 1, of->bufused, newfile) != of->bufused)
2202 fatal ("writing output file %s: %s", of->name, xstrerror (errno));
2203 if (fclose (newfile) != 0)
2204 fatal ("closing output file %s: %s", of->name, xstrerror (errno));
2206 if (verbosity_level >= 2 && backupname)
2207 printf ("%s wrote #%-3d %s backed-up in %s\n",
2208 progname, nbwrittenfiles, of->name, backupname);
2209 else if (verbosity_level >= 1)
2210 printf ("%s write #%-3d %s\n", progname, nbwrittenfiles, of->name);
2215 /* output file remains unchanged. */
2216 if (verbosity_level >= 2)
2217 printf ("%s keep %s\n", progname, of->name);
2221 of->bufused = of->buflength = 0;
2223 if (verbosity_level >= 1)
2224 printf ("%s wrote %d files.\n", progname, nbwrittenfiles);
2231 const input_file* file;
2235 struct walk_type_data;
2237 /* For scalars and strings, given the item in 'val'.
2238 For structures, given a pointer to the item in 'val'.
2239 For misc. pointers, given the item in 'val'.
2241 typedef void (*process_field_fn) (type_p f, const struct walk_type_data * p);
2242 typedef void (*func_name_fn) (type_p s, const struct walk_type_data * p);
2244 /* Parameters for write_types. */
2246 struct write_types_data
2249 const char *param_prefix;
2250 const char *subfield_marker_routine;
2251 const char *marker_routine;
2252 const char *reorder_note_routine;
2253 const char *comment;
2254 int skip_hooks; /* skip hook generation if non zero */
2257 static void output_escaped_param (struct walk_type_data *d,
2258 const char *, const char *);
2259 static void output_mangled_typename (outf_p, const_type_p);
2260 static void walk_type (type_p t, struct walk_type_data *d);
2261 static void write_func_for_structure (type_p orig_s, type_p s, type_p *param,
2262 const struct write_types_data *wtd);
2263 static void write_types_process_field
2264 (type_p f, const struct walk_type_data *d);
2265 static void write_types (outf_p output_header,
2267 type_p param_structs,
2268 const struct write_types_data *wtd);
2269 static void write_types_local_process_field
2270 (type_p f, const struct walk_type_data *d);
2271 static void write_local_func_for_structure
2272 (const_type_p orig_s, type_p s, type_p *param);
2273 static void write_local (outf_p output_header,
2274 type_p structures, type_p param_structs);
2275 static void write_enum_defn (type_p structures, type_p param_structs);
2276 static int contains_scalar_p (type_p t);
2277 static void put_mangled_filename (outf_p, const input_file *);
2278 static void finish_root_table (struct flist *flp, const char *pfx,
2279 const char *tname, const char *lastname,
2281 static void write_root (outf_p, pair_p, type_p, const char *, int,
2282 struct fileloc *, const char *, bool);
2283 static void write_array (outf_p f, pair_p v,
2284 const struct write_types_data *wtd);
2285 static void write_roots (pair_p, bool);
2287 /* Parameters for walk_type. */
2289 struct walk_type_data
2291 process_field_fn process_field;
2296 const char *prev_val[4];
2299 const struct fileloc *line;
2304 const char *reorder_fn;
2306 bool fn_wants_lvalue;
2309 /* Print a mangled name representing T to OF. */
2312 output_mangled_typename (outf_p of, const_type_p t)
2321 output_mangled_typename (of, t->u.p);
2331 case TYPE_LANG_STRUCT:
2332 oprintf (of, "%lu%s", (unsigned long) strlen (t->u.s.tag),
2335 case TYPE_PARAM_STRUCT:
2338 for (i = 0; i < NUM_PARAM; i++)
2339 if (t->u.param_struct.param[i] != NULL)
2340 output_mangled_typename (of, t->u.param_struct.param[i]);
2341 output_mangled_typename (of, t->u.param_struct.stru);
2349 /* Print PARAM to D->OF processing escapes. D->VAL references the
2350 current object, D->PREV_VAL the object containing the current
2351 object, ONAME is the name of the option and D->LINE is used to
2352 print error messages. */
2355 output_escaped_param (struct walk_type_data *d, const char *param,
2360 for (p = param; *p; p++)
2362 oprintf (d->of, "%c", *p);
2367 oprintf (d->of, "(%s)", d->prev_val[2]);
2370 oprintf (d->of, "(%s)", d->prev_val[0]);
2373 oprintf (d->of, "(%s)", d->prev_val[1]);
2377 const char *pp = d->val + strlen (d->val);
2378 while (pp[-1] == ']')
2381 oprintf (d->of, "%s", pp);
2385 error_at_line (d->line, "`%s' option contains bad escape %c%c",
2390 /* Call D->PROCESS_FIELD for every field (or subfield) of D->VAL,
2391 which is of type T. Write code to D->OF to constrain execution (at
2392 the point that D->PROCESS_FIELD is called) to the appropriate
2393 cases. Call D->PROCESS_FIELD on subobjects before calling it on
2394 pointers to those objects. D->PREV_VAL lists the objects
2395 containing the current object, D->OPT is a list of options to
2396 apply, D->INDENT is the current indentation level, D->LINE is used
2397 to print error messages, D->BITMAP indicates which languages to
2398 print the structure for, and D->PARAM is the current parameter
2399 (from an enclosing param_is option). */
2402 walk_type (type_p t, struct walk_type_data *d)
2404 const char *length = NULL;
2405 const char *desc = NULL;
2406 int maybe_undef_p = 0;
2407 int use_param_num = -1;
2408 int use_params_p = 0;
2410 const struct nested_ptr_data *nested_ptr_d = NULL;
2412 d->needs_cast_p = false;
2413 for (oo = d->opt; oo; oo = oo->next)
2414 if (strcmp (oo->name, "length") == 0)
2416 else if (strcmp (oo->name, "maybe_undef") == 0)
2418 else if (strncmp (oo->name, "use_param", 9) == 0
2419 && (oo->name[9] == '\0' || ISDIGIT (oo->name[9])))
2420 use_param_num = oo->name[9] == '\0' ? 0 : oo->name[9] - '0';
2421 else if (strcmp (oo->name, "use_params") == 0)
2423 else if (strcmp (oo->name, "desc") == 0)
2425 else if (strcmp (oo->name, "mark_hook") == 0)
2427 else if (strcmp (oo->name, "nested_ptr") == 0)
2428 nested_ptr_d = (const struct nested_ptr_data *) oo->info;
2429 else if (strcmp (oo->name, "dot") == 0)
2431 else if (strcmp (oo->name, "tag") == 0)
2433 else if (strcmp (oo->name, "special") == 0)
2435 else if (strcmp (oo->name, "skip") == 0)
2437 else if (strcmp (oo->name, "default") == 0)
2439 else if (strcmp (oo->name, "param_is") == 0)
2441 else if (strncmp (oo->name, "param", 5) == 0
2442 && ISDIGIT (oo->name[5]) && strcmp (oo->name + 6, "_is") == 0)
2444 else if (strcmp (oo->name, "chain_next") == 0)
2446 else if (strcmp (oo->name, "chain_prev") == 0)
2448 else if (strcmp (oo->name, "chain_circular") == 0)
2450 else if (strcmp (oo->name, "reorder") == 0)
2452 else if (strcmp (oo->name, "variable_size") == 0)
2455 error_at_line (d->line, "unknown option `%s'\n", oo->name);
2462 int pointer_p = t->kind == TYPE_POINTER;
2466 if (!UNION_OR_STRUCT_P (t))
2467 error_at_line (d->line, "`use_params' option on unimplemented type");
2469 t = find_param_structure (t, d->param);
2471 t = create_pointer (t);
2474 if (use_param_num != -1)
2476 if (d->param != NULL && d->param[use_param_num] != NULL)
2478 type_p nt = d->param[use_param_num];
2480 if (t->kind == TYPE_ARRAY)
2481 nt = create_array (nt, t->u.a.len);
2482 else if (length != NULL && t->kind == TYPE_POINTER)
2483 nt = create_pointer (nt);
2484 d->needs_cast_p = (t->kind != TYPE_POINTER
2485 && (nt->kind == TYPE_POINTER
2486 || nt->kind == TYPE_STRING));
2490 error_at_line (d->line, "no parameter defined for `%s'", d->val);
2494 && (t->kind != TYPE_POINTER || !UNION_OR_STRUCT_P (t->u.p)))
2496 error_at_line (d->line,
2497 "field `%s' has invalid option `maybe_undef_p'\n",
2506 d->process_field (t, d);
2511 if (maybe_undef_p && t->u.p->u.s.line.file == NULL)
2513 oprintf (d->of, "%*sgcc_assert (!%s);\n", d->indent, "", d->val);
2519 if (!UNION_OR_STRUCT_P (t->u.p)
2520 && t->u.p->kind != TYPE_PARAM_STRUCT)
2522 error_at_line (d->line,
2523 "field `%s' is pointer to unimplemented type",
2530 const char *oldprevval2 = d->prev_val[2];
2532 if (!UNION_OR_STRUCT_P (nested_ptr_d->type))
2534 error_at_line (d->line,
2535 "field `%s' has invalid "
2536 "option `nested_ptr'\n", d->val);
2540 d->prev_val[2] = d->val;
2541 oprintf (d->of, "%*s{\n", d->indent, "");
2543 d->val = xasprintf ("x%d", d->counter++);
2544 oprintf (d->of, "%*s%s %s * %s%s =\n", d->indent, "",
2545 (nested_ptr_d->type->kind == TYPE_UNION
2546 ? "union" : "struct"),
2547 nested_ptr_d->type->u.s.tag,
2548 d->fn_wants_lvalue ? "" : "const ", d->val);
2549 oprintf (d->of, "%*s", d->indent + 2, "");
2550 output_escaped_param (d, nested_ptr_d->convert_from,
2552 oprintf (d->of, ";\n");
2554 d->process_field (nested_ptr_d->type, d);
2556 if (d->fn_wants_lvalue)
2558 oprintf (d->of, "%*s%s = ", d->indent, "",
2560 d->prev_val[2] = d->val;
2561 output_escaped_param (d, nested_ptr_d->convert_to,
2563 oprintf (d->of, ";\n");
2567 oprintf (d->of, "%*s}\n", d->indent, "");
2568 d->val = d->prev_val[2];
2569 d->prev_val[2] = oldprevval2;
2572 d->process_field (t->u.p, d);
2576 int loopcounter = d->counter++;
2577 const char *oldval = d->val;
2578 const char *oldprevval3 = d->prev_val[3];
2581 oprintf (d->of, "%*sif (%s != NULL) {\n", d->indent, "", d->val);
2583 oprintf (d->of, "%*ssize_t i%d;\n", d->indent, "", loopcounter);
2584 oprintf (d->of, "%*sfor (i%d = 0; i%d != (size_t)(", d->indent,
2585 "", loopcounter, loopcounter);
2586 output_escaped_param (d, length, "length");
2587 oprintf (d->of, "); i%d++) {\n", loopcounter);
2589 d->val = newval = xasprintf ("%s[i%d]", oldval, loopcounter);
2591 d->prev_val[3] = oldval;
2592 walk_type (t->u.p, d);
2595 d->prev_val[3] = oldprevval3;
2598 oprintf (d->of, "%*s}\n", d->indent, "");
2599 d->process_field (t, d);
2601 oprintf (d->of, "%*s}\n", d->indent, "");
2608 int loopcounter = d->counter++;
2609 const char *oldval = d->val;
2612 /* If it's an array of scalars, we optimize by not generating
2614 if (t->u.a.p->kind == TYPE_SCALAR)
2617 /* When walking an array, compute the length and store it in a
2618 local variable before walking the array elements, instead of
2619 recomputing the length expression each time through the loop.
2620 This is necessary to handle tcc_vl_exp objects like CALL_EXPR,
2621 where the length is stored in the first array element,
2622 because otherwise that operand can get overwritten on the
2624 oprintf (d->of, "%*s{\n", d->indent, "");
2626 oprintf (d->of, "%*ssize_t i%d;\n", d->indent, "", loopcounter);
2627 oprintf (d->of, "%*ssize_t l%d = (size_t)(",
2628 d->indent, "", loopcounter);
2630 output_escaped_param (d, length, "length");
2632 oprintf (d->of, "%s", t->u.a.len);
2633 oprintf (d->of, ");\n");
2635 oprintf (d->of, "%*sfor (i%d = 0; i%d != l%d; i%d++) {\n",
2637 loopcounter, loopcounter, loopcounter, loopcounter);
2639 d->val = newval = xasprintf ("%s[i%d]", oldval, loopcounter);
2641 walk_type (t->u.a.p, d);
2646 oprintf (d->of, "%*s}\n", d->indent, "");
2648 oprintf (d->of, "%*s}\n", d->indent, "");
2656 const char *oldval = d->val;
2657 const char *oldprevval1 = d->prev_val[1];
2658 const char *oldprevval2 = d->prev_val[2];
2659 const int union_p = t->kind == TYPE_UNION;
2660 int seen_default_p = 0;
2663 if (!t->u.s.line.file)
2664 error_at_line (d->line, "incomplete structure `%s'", t->u.s.tag);
2666 if ((d->bitmap & t->u.s.bitmap) != d->bitmap)
2668 error_at_line (d->line,
2669 "structure `%s' defined for mismatching languages",
2671 error_at_line (&t->u.s.line, "one structure defined here");
2674 /* Some things may also be defined in the structure's options. */
2675 for (o = t->u.s.opt; o; o = o->next)
2676 if (!desc && strcmp (o->name, "desc") == 0)
2679 d->prev_val[2] = oldval;
2680 d->prev_val[1] = oldprevval2;
2685 error_at_line (d->line,
2686 "missing `desc' option for union `%s'",
2690 oprintf (d->of, "%*sswitch (", d->indent, "");
2691 output_escaped_param (d, desc, "desc");
2692 oprintf (d->of, ")\n");
2694 oprintf (d->of, "%*s{\n", d->indent, "");
2696 for (f = t->u.s.fields; f; f = f->next)
2699 const char *dot = ".";
2700 const char *tagid = NULL;
2703 int use_param_p = 0;
2706 d->reorder_fn = NULL;
2707 for (oo = f->opt; oo; oo = oo->next)
2708 if (strcmp (oo->name, "dot") == 0)
2710 else if (strcmp (oo->name, "tag") == 0)
2712 else if (strcmp (oo->name, "skip") == 0)
2714 else if (strcmp (oo->name, "default") == 0)
2716 else if (strcmp (oo->name, "reorder") == 0)
2717 d->reorder_fn = oo->info;
2718 else if (strncmp (oo->name, "use_param", 9) == 0
2719 && (oo->name[9] == '\0' || ISDIGIT (oo->name[9])))
2725 if (union_p && tagid)
2727 oprintf (d->of, "%*scase %s:\n", d->indent, "", tagid);
2730 else if (union_p && default_p)
2732 oprintf (d->of, "%*sdefault:\n", d->indent, "");
2736 else if (!union_p && (default_p || tagid))
2737 error_at_line (d->line,
2738 "can't use `%s' outside a union on field `%s'",
2739 default_p ? "default" : "tag", f->name);
2740 else if (union_p && !(default_p || tagid)
2741 && f->type->kind == TYPE_SCALAR)
2744 "%s:%d: warning: field `%s' is missing `tag' or `default' option\n",
2745 get_input_file_name (d->line->file), d->line->line,
2749 else if (union_p && !(default_p || tagid))
2750 error_at_line (d->line,
2751 "field `%s' is missing `tag' or `default' option",
2755 d->val = newval = xasprintf ("%s%s%s", oldval, dot, f->name);
2757 d->used_length = false;
2759 if (union_p && use_param_p && d->param == NULL)
2760 oprintf (d->of, "%*sgcc_unreachable ();\n", d->indent, "");
2762 walk_type (f->type, d);
2768 oprintf (d->of, "%*sbreak;\n", d->indent, "");
2772 d->reorder_fn = NULL;
2775 d->prev_val[1] = oldprevval1;
2776 d->prev_val[2] = oldprevval2;
2778 if (union_p && !seen_default_p)
2780 oprintf (d->of, "%*sdefault:\n", d->indent, "");
2781 oprintf (d->of, "%*s break;\n", d->indent, "");
2785 oprintf (d->of, "%*s}\n", d->indent, "");
2791 case TYPE_LANG_STRUCT:
2794 for (nt = t->u.s.lang_struct; nt; nt = nt->next)
2795 if ((d->bitmap & nt->u.s.bitmap) == d->bitmap)
2798 error_at_line (d->line, "structure `%s' differs between languages",
2805 case TYPE_PARAM_STRUCT:
2807 type_p *oldparam = d->param;
2809 d->param = t->u.param_struct.param;
2810 walk_type (t->u.param_struct.stru, d);
2811 d->param = oldparam;
2820 /* process_field routine for marking routines. */
2823 write_types_process_field (type_p f, const struct walk_type_data *d)
2825 const struct write_types_data *wtd;
2826 const char *cast = d->needs_cast_p ? "(void *)" : "";
2827 wtd = (const struct write_types_data *) d->cookie;
2832 oprintf (d->of, "%*s%s (%s%s", d->indent, "",
2833 wtd->subfield_marker_routine, cast, d->val);
2834 if (wtd->param_prefix)
2836 oprintf (d->of, ", %s", d->prev_val[3]);
2839 oprintf (d->of, ", gt_%s_", wtd->param_prefix);
2840 output_mangled_typename (d->of, d->orig_s);
2843 oprintf (d->of, ", gt_%sa_%s", wtd->param_prefix, d->prev_val[0]);
2845 if (f->u.p->kind == TYPE_PARAM_STRUCT
2846 && f->u.p->u.s.line.file != NULL)
2848 oprintf (d->of, ", gt_e_");
2849 output_mangled_typename (d->of, f);
2851 else if (UNION_OR_STRUCT_P (f) && f->u.p->u.s.line.file != NULL)
2853 oprintf (d->of, ", gt_ggc_e_");
2854 output_mangled_typename (d->of, f);
2857 oprintf (d->of, ", gt_types_enum_last");
2859 oprintf (d->of, ");\n");
2860 if (d->reorder_fn && wtd->reorder_note_routine)
2861 oprintf (d->of, "%*s%s (%s%s, %s, %s);\n", d->indent, "",
2862 wtd->reorder_note_routine, cast, d->val,
2863 d->prev_val[3], d->reorder_fn);
2869 case TYPE_LANG_STRUCT:
2870 case TYPE_PARAM_STRUCT:
2871 oprintf (d->of, "%*sgt_%s_", d->indent, "", wtd->prefix);
2872 output_mangled_typename (d->of, f);
2873 oprintf (d->of, " (%s%s);\n", cast, d->val);
2874 if (d->reorder_fn && wtd->reorder_note_routine)
2875 oprintf (d->of, "%*s%s (%s%s, %s%s, %s);\n", d->indent, "",
2876 wtd->reorder_note_routine, cast, d->val, cast, d->val,
2888 /* A subroutine of write_func_for_structure. Write the enum tag for S. */
2891 output_type_enum (outf_p of, type_p s)
2893 if (s->kind == TYPE_PARAM_STRUCT && s->u.param_struct.line.file != NULL)
2895 oprintf (of, ", gt_e_");
2896 output_mangled_typename (of, s);
2898 else if (UNION_OR_STRUCT_P (s) && s->u.s.line.file != NULL)
2900 oprintf (of, ", gt_ggc_e_");
2901 output_mangled_typename (of, s);
2904 oprintf (of, ", gt_types_enum_last");
2907 /* Return an output file that is suitable for definitions which can
2908 reference struct S */
2911 get_output_file_for_structure (const_type_p s, type_p *param)
2913 const input_file *fn;
2916 gcc_assert (UNION_OR_STRUCT_P (s));
2917 fn = s->u.s.line.file;
2919 /* This is a hack, and not the good kind either. */
2920 for (i = NUM_PARAM - 1; i >= 0; i--)
2921 if (param && param[i] && param[i]->kind == TYPE_POINTER
2922 && UNION_OR_STRUCT_P (param[i]->u.p))
2923 fn = param[i]->u.p->u.s.line.file;
2925 /* The call to get_output_file_with_visibility may update fn by
2926 caching its result inside, so we need the CONST_CAST. */
2927 return get_output_file_with_visibility (CONST_CAST (input_file*, fn));
2930 /* For S, a structure that's part of ORIG_S, and using parameters
2931 PARAM, write out a routine that:
2932 - Takes a parameter, a void * but actually of type *S
2933 - If SEEN_ROUTINE returns nonzero, calls write_types_process_field on each
2934 field of S or its substructures and (in some cases) things
2935 that are pointed to by S.
2939 write_func_for_structure (type_p orig_s, type_p s, type_p *param,
2940 const struct write_types_data *wtd)
2942 const char *chain_next = NULL;
2943 const char *chain_prev = NULL;
2944 const char *chain_circular = NULL;
2945 const char *mark_hook_name = NULL;
2947 struct walk_type_data d;
2949 memset (&d, 0, sizeof (d));
2950 d.of = get_output_file_for_structure (s, param);
2952 for (opt = s->u.s.opt; opt; opt = opt->next)
2953 if (strcmp (opt->name, "chain_next") == 0)
2954 chain_next = opt->info;
2955 else if (strcmp (opt->name, "chain_prev") == 0)
2956 chain_prev = opt->info;
2957 else if (strcmp (opt->name, "chain_circular") == 0)
2958 chain_circular = opt->info;
2959 else if (strcmp (opt->name, "mark_hook") == 0)
2960 mark_hook_name = opt->info;
2962 if (chain_prev != NULL && chain_next == NULL)
2963 error_at_line (&s->u.s.line, "chain_prev without chain_next");
2964 if (chain_circular != NULL && chain_next != NULL)
2965 error_at_line (&s->u.s.line, "chain_circular with chain_next");
2966 if (chain_circular != NULL)
2967 chain_next = chain_circular;
2969 d.process_field = write_types_process_field;
2973 d.line = &s->u.s.line;
2974 d.bitmap = s->u.s.bitmap;
2976 d.prev_val[0] = "*x";
2977 d.prev_val[1] = "not valid postage"; /* Guarantee an error. */
2978 d.prev_val[3] = "x";
2981 oprintf (d.of, "\n");
2982 oprintf (d.of, "void\n");
2984 oprintf (d.of, "gt_%sx_%s", wtd->prefix, orig_s->u.s.tag);
2987 oprintf (d.of, "gt_%s_", wtd->prefix);
2988 output_mangled_typename (d.of, orig_s);
2990 oprintf (d.of, " (void *x_p)\n");
2991 oprintf (d.of, "{\n");
2992 oprintf (d.of, " %s %s * %sx = (%s %s *)x_p;\n",
2993 s->kind == TYPE_UNION ? "union" : "struct", s->u.s.tag,
2994 chain_next == NULL ? "const " : "",
2995 s->kind == TYPE_UNION ? "union" : "struct", s->u.s.tag);
2996 if (chain_next != NULL)
2997 oprintf (d.of, " %s %s * xlimit = x;\n",
2998 s->kind == TYPE_UNION ? "union" : "struct", s->u.s.tag);
2999 if (chain_next == NULL)
3001 oprintf (d.of, " if (%s (x", wtd->marker_routine);
3002 if (wtd->param_prefix)
3004 oprintf (d.of, ", x, gt_%s_", wtd->param_prefix);
3005 output_mangled_typename (d.of, orig_s);
3006 output_type_enum (d.of, orig_s);
3008 oprintf (d.of, "))\n");
3012 if (chain_circular != NULL)
3013 oprintf (d.of, " if (!%s (xlimit", wtd->marker_routine);
3015 oprintf (d.of, " while (%s (xlimit", wtd->marker_routine);
3016 if (wtd->param_prefix)
3018 oprintf (d.of, ", xlimit, gt_%s_", wtd->param_prefix);
3019 output_mangled_typename (d.of, orig_s);
3020 output_type_enum (d.of, orig_s);
3022 oprintf (d.of, "))\n");
3023 if (chain_circular != NULL)
3024 oprintf (d.of, " return;\n do\n");
3025 if (mark_hook_name && !wtd->skip_hooks)
3027 oprintf (d.of, " {\n");
3028 oprintf (d.of, " %s (xlimit);\n ", mark_hook_name);
3030 oprintf (d.of, " xlimit = (");
3031 d.prev_val[2] = "*xlimit";
3032 output_escaped_param (&d, chain_next, "chain_next");
3033 oprintf (d.of, ");\n");
3034 if (mark_hook_name && !wtd->skip_hooks)
3035 oprintf (d.of, " }\n");
3036 if (chain_prev != NULL)
3038 oprintf (d.of, " if (x != xlimit)\n");
3039 oprintf (d.of, " for (;;)\n");
3040 oprintf (d.of, " {\n");
3041 oprintf (d.of, " %s %s * const xprev = (",
3042 s->kind == TYPE_UNION ? "union" : "struct", s->u.s.tag);
3044 d.prev_val[2] = "*x";
3045 output_escaped_param (&d, chain_prev, "chain_prev");
3046 oprintf (d.of, ");\n");
3047 oprintf (d.of, " if (xprev == NULL) break;\n");
3048 oprintf (d.of, " x = xprev;\n");
3049 oprintf (d.of, " (void) %s (xprev", wtd->marker_routine);
3050 if (wtd->param_prefix)
3052 oprintf (d.of, ", xprev, gt_%s_", wtd->param_prefix);
3053 output_mangled_typename (d.of, orig_s);
3054 output_type_enum (d.of, orig_s);
3056 oprintf (d.of, ");\n");
3057 oprintf (d.of, " }\n");
3059 if (chain_circular != NULL)
3061 oprintf (d.of, " while (%s (xlimit", wtd->marker_routine);
3062 if (wtd->param_prefix)
3064 oprintf (d.of, ", xlimit, gt_%s_", wtd->param_prefix);
3065 output_mangled_typename (d.of, orig_s);
3066 output_type_enum (d.of, orig_s);
3068 oprintf (d.of, "));\n");
3069 if (mark_hook_name && !wtd->skip_hooks)
3070 oprintf (d.of, " %s (xlimit);\n", mark_hook_name);
3071 oprintf (d.of, " do\n");
3074 oprintf (d.of, " while (x != xlimit)\n");
3076 oprintf (d.of, " {\n");
3077 if (mark_hook_name && chain_next == NULL && !wtd->skip_hooks)
3079 oprintf (d.of, " %s (x);\n", mark_hook_name);
3081 d.prev_val[2] = "*x";
3085 if (chain_next != NULL)
3087 oprintf (d.of, " x = (");
3088 output_escaped_param (&d, chain_next, "chain_next");
3089 oprintf (d.of, ");\n");
3092 oprintf (d.of, " }\n");
3093 if (chain_circular != NULL)
3094 oprintf (d.of, " while (x != xlimit);\n");
3095 oprintf (d.of, "}\n");
3098 /* Write out marker routines for STRUCTURES and PARAM_STRUCTS. */
3101 write_types (outf_p output_header, type_p structures, type_p param_structs,
3102 const struct write_types_data *wtd)
3104 int nbfun = 0; /* Count the emitted functions. */
3107 oprintf (output_header, "\n/* %s*/\n", wtd->comment);
3108 /* We first emit the macros and the declarations. Functions' code is
3109 emitted afterwards. This is needed in plugin mode. */
3110 oprintf (output_header, "/* macros and declarations */\n");
3111 for (s = structures; s; s = s->next)
3112 if (s->gc_used == GC_POINTED_TO || s->gc_used == GC_MAYBE_POINTED_TO)
3116 if (s->gc_used == GC_MAYBE_POINTED_TO && s->u.s.line.file == NULL)
3119 oprintf (output_header, "#define gt_%s_", wtd->prefix);
3120 output_mangled_typename (output_header, s);
3121 oprintf (output_header, "(X) do { \\\n");
3122 oprintf (output_header,
3123 " if (X != NULL) gt_%sx_%s (X);\\\n", wtd->prefix,
3125 oprintf (output_header, " } while (0)\n");
3127 for (opt = s->u.s.opt; opt; opt = opt->next)
3128 if (strcmp (opt->name, "ptr_alias") == 0)
3130 const_type_p const t = (const_type_p) opt->info;
3131 if (t->kind == TYPE_STRUCT
3132 || t->kind == TYPE_UNION || t->kind == TYPE_LANG_STRUCT)
3133 oprintf (output_header,
3134 "#define gt_%sx_%s gt_%sx_%s\n",
3135 wtd->prefix, s->u.s.tag, wtd->prefix, t->u.s.tag);
3137 error_at_line (&s->u.s.line,
3138 "structure alias is not a structure");
3144 /* Declare the marker procedure only once. */
3145 oprintf (output_header,
3146 "extern void gt_%sx_%s (void *);\n",
3147 wtd->prefix, s->u.s.tag);
3149 if (s->u.s.line.file == NULL)
3151 fprintf (stderr, "warning: structure `%s' used but not defined\n",
3157 for (s = param_structs; s; s = s->next)
3158 if (s->gc_used == GC_POINTED_TO)
3160 type_p stru = s->u.param_struct.stru;
3162 /* Declare the marker procedure. */
3163 oprintf (output_header, "extern void gt_%s_", wtd->prefix);
3164 output_mangled_typename (output_header, s);
3165 oprintf (output_header, " (void *);\n");
3167 if (stru->u.s.line.file == NULL)
3169 fprintf (stderr, "warning: structure `%s' used but not defined\n",
3175 /* At last we emit the functions code. */
3176 oprintf (output_header, "\n/* functions code */\n");
3177 for (s = structures; s; s = s->next)
3178 if (s->gc_used == GC_POINTED_TO || s->gc_used == GC_MAYBE_POINTED_TO)
3182 if (s->gc_used == GC_MAYBE_POINTED_TO && s->u.s.line.file == NULL)
3184 for (opt = s->u.s.opt; opt; opt = opt->next)
3185 if (strcmp (opt->name, "ptr_alias") == 0)
3190 if (s->kind == TYPE_LANG_STRUCT)
3193 for (ss = s->u.s.lang_struct; ss; ss = ss->next)
3196 DBGPRINTF ("writing func #%d lang_struct ss @ %p '%s'",
3197 nbfun, (void*) ss, ss->u.s.tag);
3198 write_func_for_structure (s, ss, NULL, wtd);
3204 DBGPRINTF ("writing func #%d struct s @ %p '%s'",
3205 nbfun, (void*) s, s->u.s.tag);
3206 write_func_for_structure (s, s, NULL, wtd);
3211 /* Structure s is not possibly pointed to, so can be ignored. */
3212 DBGPRINTF ("ignored s @ %p '%s' gc_used#%d",
3213 (void*)s, s->u.s.tag,
3217 for (s = param_structs; s; s = s->next)
3218 if (s->gc_used == GC_POINTED_TO)
3220 type_p *param = s->u.param_struct.param;
3221 type_p stru = s->u.param_struct.stru;
3222 if (stru->u.s.line.file == NULL)
3224 if (stru->kind == TYPE_LANG_STRUCT)
3227 for (ss = stru->u.s.lang_struct; ss; ss = ss->next)
3230 DBGPRINTF ("writing func #%d param lang_struct ss @ %p '%s'",
3231 nbfun, (void*) ss, ss->u.s.tag);
3232 write_func_for_structure (s, ss, param, wtd);
3238 DBGPRINTF ("writing func #%d param struct s @ %p stru @ %p '%s'",
3240 (void*) stru, stru->u.s.tag);
3241 write_func_for_structure (s, stru, param, wtd);
3246 /* Param structure s is not pointed to, so should be ignored. */
3247 DBGPRINTF ("ignored s @ %p", (void*)s);
3249 if (verbosity_level >= 2)
3250 printf ("%s emitted %d routines for %s\n",
3251 progname, nbfun, wtd->comment);
3254 static const struct write_types_data ggc_wtd = {
3255 "ggc_m", NULL, "ggc_mark", "ggc_test_and_set_mark", NULL,
3256 "GC marker procedures. ",
3260 static const struct write_types_data pch_wtd = {
3261 "pch_n", "pch_p", "gt_pch_note_object", "gt_pch_note_object",
3262 "gt_pch_note_reorder",
3263 "PCH type-walking procedures. ",
3267 /* Write out the local pointer-walking routines. */
3269 /* process_field routine for local pointer-walking. */
3272 write_types_local_process_field (type_p f, const struct walk_type_data *d)
3279 case TYPE_LANG_STRUCT:
3280 case TYPE_PARAM_STRUCT:
3282 oprintf (d->of, "%*sif ((void *)(%s) == this_obj)\n", d->indent, "",
3284 oprintf (d->of, "%*s op (&(%s), cookie);\n", d->indent, "", d->val);
3295 /* For S, a structure that's part of ORIG_S, and using parameters
3296 PARAM, write out a routine that:
3297 - Is of type gt_note_pointers
3298 - Calls PROCESS_FIELD on each field of S or its substructures.
3302 write_local_func_for_structure (const_type_p orig_s, type_p s, type_p *param)
3304 struct walk_type_data d;
3306 memset (&d, 0, sizeof (d));
3307 d.of = get_output_file_for_structure (s, param);
3308 d.process_field = write_types_local_process_field;
3310 d.line = &s->u.s.line;
3311 d.bitmap = s->u.s.bitmap;
3313 d.prev_val[0] = d.prev_val[2] = "*x";
3314 d.prev_val[1] = "not valid postage"; /* Guarantee an error. */
3315 d.prev_val[3] = "x";
3317 d.fn_wants_lvalue = true;
3319 oprintf (d.of, "\n");
3320 oprintf (d.of, "void\n");
3321 oprintf (d.of, "gt_pch_p_");
3322 output_mangled_typename (d.of, orig_s);
3323 oprintf (d.of, " (ATTRIBUTE_UNUSED void *this_obj,\n"
3325 "\tATTRIBUTE_UNUSED gt_pointer_operator op,\n"
3326 "\tATTRIBUTE_UNUSED void *cookie)\n");
3327 oprintf (d.of, "{\n");
3328 oprintf (d.of, " %s %s * const x ATTRIBUTE_UNUSED = (%s %s *)x_p;\n",
3329 s->kind == TYPE_UNION ? "union" : "struct", s->u.s.tag,
3330 s->kind == TYPE_UNION ? "union" : "struct", s->u.s.tag);
3333 oprintf (d.of, "}\n");
3336 /* Write out local marker routines for STRUCTURES and PARAM_STRUCTS. */
3339 write_local (outf_p output_header, type_p structures, type_p param_structs)
3345 oprintf (output_header, "\n/* Local pointer-walking routines. */\n");
3346 for (s = structures; s; s = s->next)
3347 if (s->gc_used == GC_POINTED_TO || s->gc_used == GC_MAYBE_POINTED_TO)
3351 if (s->u.s.line.file == NULL)
3354 for (opt = s->u.s.opt; opt; opt = opt->next)
3355 if (strcmp (opt->name, "ptr_alias") == 0)
3357 const_type_p const t = (const_type_p) opt->info;
3358 if (t->kind == TYPE_STRUCT
3359 || t->kind == TYPE_UNION || t->kind == TYPE_LANG_STRUCT)
3361 oprintf (output_header, "#define gt_pch_p_");
3362 output_mangled_typename (output_header, s);
3363 oprintf (output_header, " gt_pch_p_");
3364 output_mangled_typename (output_header, t);
3365 oprintf (output_header, "\n");
3368 error_at_line (&s->u.s.line,
3369 "structure alias is not a structure");
3375 /* Declare the marker procedure only once. */
3376 oprintf (output_header, "extern void gt_pch_p_");
3377 output_mangled_typename (output_header, s);
3378 oprintf (output_header,
3379 "\n (void *, void *, gt_pointer_operator, void *);\n");
3381 if (s->kind == TYPE_LANG_STRUCT)
3384 for (ss = s->u.s.lang_struct; ss; ss = ss->next)
3385 write_local_func_for_structure (s, ss, NULL);
3388 write_local_func_for_structure (s, s, NULL);
3391 for (s = param_structs; s; s = s->next)
3392 if (s->gc_used == GC_POINTED_TO)
3394 type_p *param = s->u.param_struct.param;
3395 type_p stru = s->u.param_struct.stru;
3397 /* Declare the marker procedure. */
3398 oprintf (output_header, "extern void gt_pch_p_");
3399 output_mangled_typename (output_header, s);
3400 oprintf (output_header,
3401 "\n (void *, void *, gt_pointer_operator, void *);\n");
3403 if (stru->u.s.line.file == NULL)
3405 fprintf (stderr, "warning: structure `%s' used but not defined\n",
3410 if (stru->kind == TYPE_LANG_STRUCT)
3413 for (ss = stru->u.s.lang_struct; ss; ss = ss->next)
3414 write_local_func_for_structure (s, ss, param);
3417 write_local_func_for_structure (s, stru, param);
3421 /* Nonzero if S is a type for which typed GC allocators should be output. */
3423 #define USED_BY_TYPED_GC_P(s) \
3424 (((s->kind == TYPE_POINTER) \
3425 && ((s->u.p->gc_used == GC_POINTED_TO) \
3426 || (s->u.p->gc_used == GC_USED))) \
3427 || (UNION_OR_STRUCT_P (s) && \
3428 (((s)->gc_used == GC_POINTED_TO) \
3429 || ((s)->gc_used == GC_MAYBE_POINTED_TO \
3430 && s->u.s.line.file != NULL) \
3431 || ((s)->gc_used == GC_USED \
3432 && strncmp (s->u.s.tag, "anonymous", strlen ("anonymous"))))))
3435 /* Write out the 'enum' definition for gt_types_enum. */
3438 write_enum_defn (type_p structures, type_p param_structs)
3442 int nbparamstruct = 0;
3446 oprintf (header_file, "\n/* Enumeration of types known. */\n");
3447 oprintf (header_file, "enum gt_types_enum {\n");
3448 for (s = structures; s; s = s->next)
3449 if (USED_BY_TYPED_GC_P (s))
3452 DBGPRINTF ("write_enum_defn s @ %p nbstruct %d",
3453 (void*) s, nbstruct);
3454 if (UNION_OR_STRUCT_P (s))
3455 DBGPRINTF ("write_enum_defn s %p #%d is unionorstruct tagged %s",
3456 (void*) s, nbstruct, s->u.s.tag);
3457 oprintf (header_file, " gt_ggc_e_");
3458 output_mangled_typename (header_file, s);
3459 oprintf (header_file, ",\n");
3461 for (s = param_structs; s; s = s->next)
3462 if (s->gc_used == GC_POINTED_TO)
3465 DBGPRINTF ("write_enum_defn s %p nbparamstruct %d",
3466 (void*) s, nbparamstruct);
3467 oprintf (header_file, " gt_e_");
3468 output_mangled_typename (header_file, s);
3469 oprintf (header_file, ",\n");
3471 oprintf (header_file, " gt_types_enum_last\n");
3472 oprintf (header_file, "};\n");
3473 if (verbosity_level >= 2)
3474 printf ("%s handled %d GTY-ed structures & %d parameterized structures.\n",
3475 progname, nbstruct, nbparamstruct);
3479 /* Might T contain any non-pointer elements? */
3482 contains_scalar_p (type_p t)
3490 return contains_scalar_p (t->u.a.p);
3492 /* Could also check for structures that have no non-pointer
3493 fields, but there aren't enough of those to worry about. */
3498 /* Mangle INPF and print it to F. */
3501 put_mangled_filename (outf_p f, const input_file *inpf)
3503 /* The call to get_output_file_name may indirectly update fn since
3504 get_output_file_with_visibility caches its result inside, so we
3505 need the CONST_CAST. */
3506 const char *name = get_output_file_name (CONST_CAST (input_file*, inpf));
3509 for (; *name != 0; name++)
3510 if (ISALNUM (*name))
3511 oprintf (f, "%c", *name);
3513 oprintf (f, "%c", '_');
3516 /* Finish off the currently-created root tables in FLP. PFX, TNAME,
3517 LASTNAME, and NAME are all strings to insert in various places in
3518 the resulting code. */
3521 finish_root_table (struct flist *flp, const char *pfx, const char *lastname,
3522 const char *tname, const char *name)
3526 for (fli2 = flp; fli2; fli2 = fli2->next)
3527 if (fli2->started_p)
3529 oprintf (fli2->f, " %s\n", lastname);
3530 oprintf (fli2->f, "};\n\n");
3533 for (fli2 = flp; fli2 && base_files; fli2 = fli2->next)
3534 if (fli2->started_p)
3536 lang_bitmap bitmap = get_lang_bitmap (fli2->file);
3539 for (fnum = 0; bitmap != 0; fnum++, bitmap >>= 1)
3542 oprintf (base_files[fnum],
3543 "extern const struct %s gt_%s_", tname, pfx);
3544 put_mangled_filename (base_files[fnum], fli2->file);
3545 oprintf (base_files[fnum], "[];\n");
3551 for (fnum = 0; base_files && fnum < num_lang_dirs; fnum++)
3552 oprintf (base_files[fnum],
3553 "EXPORTED_CONST struct %s * const %s[] = {\n", tname, name);
3557 for (fli2 = flp; fli2; fli2 = fli2->next)
3558 if (fli2->started_p)
3560 lang_bitmap bitmap = get_lang_bitmap (fli2->file);
3563 fli2->started_p = 0;
3565 for (fnum = 0; base_files && bitmap != 0; fnum++, bitmap >>= 1)
3568 oprintf (base_files[fnum], " gt_%s_", pfx);
3569 put_mangled_filename (base_files[fnum], fli2->file);
3570 oprintf (base_files[fnum], ",\n");
3576 for (fnum = 0; base_files && fnum < num_lang_dirs; fnum++)
3578 oprintf (base_files[fnum], " NULL\n");
3579 oprintf (base_files[fnum], "};\n");
3584 /* Write the first three fields (pointer, count and stride) for
3585 root NAME to F. V and LINE are as for write_root.
3587 Return true if the entry could be written; return false on error. */
3590 start_root_entry (outf_p f, pair_p v, const char *name, struct fileloc *line)
3596 error_at_line (line, "`%s' is too complex to be a root", name);
3600 oprintf (f, " {\n");
3601 oprintf (f, " &%s,\n", name);
3604 for (ap = v->type; ap->kind == TYPE_ARRAY; ap = ap->u.a.p)
3606 oprintf (f, " * (%s)", ap->u.a.len);
3607 else if (ap == v->type)
3608 oprintf (f, " * ARRAY_SIZE (%s)", v->name);
3610 oprintf (f, " sizeof (%s", v->name);
3611 for (ap = v->type; ap->kind == TYPE_ARRAY; ap = ap->u.a.p)
3613 oprintf (f, "),\n");
3617 /* A subroutine of write_root for writing the roots for field FIELD_NAME,
3618 which has type FIELD_TYPE. Parameters F to EMIT_PCH are the parameters
3622 write_field_root (outf_p f, pair_p v, type_p type, const char *name,
3623 int has_length, struct fileloc *line, const char *if_marked,
3624 bool emit_pch, type_p field_type, const char *field_name)
3626 /* If the field reference is relative to V, rather than to some
3627 subcomponent of V, we can mark any subarrays with a single stride.
3628 We're effectively treating the field as a global variable in its
3630 if (v && type == v->type)
3635 newv.type = field_type;
3636 newv.name = ACONCAT ((v->name, ".", field_name, NULL));
3639 /* Otherwise, any arrays nested in the structure are too complex to
3641 else if (field_type->kind == TYPE_ARRAY)
3643 write_root (f, v, field_type, ACONCAT ((name, ".", field_name, NULL)),
3644 has_length, line, if_marked, emit_pch);
3647 /* Write out to F the table entry and any marker routines needed to
3648 mark NAME as TYPE. V can be one of three values:
3650 - null, if NAME is too complex to represent using a single
3651 count and stride. In this case, it is an error for NAME to
3652 contain any gc-ed data.
3654 - the outermost array that contains NAME, if NAME is part of an array.
3656 - the C variable that contains NAME, if NAME is not part of an array.
3658 LINE is the line of the C source that declares the root variable.
3659 HAS_LENGTH is nonzero iff V was a variable-length array. IF_MARKED
3660 is nonzero iff we are building the root table for hash table caches. */
3663 write_root (outf_p f, pair_p v, type_p type, const char *name, int has_length,
3664 struct fileloc *line, const char *if_marked, bool emit_pch)
3671 for (fld = type->u.s.fields; fld; fld = fld->next)
3674 const char *desc = NULL;
3677 for (o = fld->opt; o; o = o->next)
3678 if (strcmp (o->name, "skip") == 0)
3680 else if (strcmp (o->name, "desc") == 0)
3682 else if (strcmp (o->name, "param_is") == 0)
3685 error_at_line (line,
3686 "field `%s' of global `%s' has unknown option `%s'",
3687 fld->name, name, o->name);
3691 else if (desc && fld->type->kind == TYPE_UNION)
3693 pair_p validf = NULL;
3696 for (ufld = fld->type->u.s.fields; ufld; ufld = ufld->next)
3698 const char *tag = NULL;
3701 for (oo = ufld->opt; oo; oo = oo->next)
3702 if (strcmp (oo->name, "tag") == 0)
3704 if (tag == NULL || strcmp (tag, desc) != 0)
3707 error_at_line (line,
3708 "both `%s.%s.%s' and `%s.%s.%s' have tag `%s'",
3709 name, fld->name, validf->name,
3710 name, fld->name, ufld->name, tag);
3714 write_field_root (f, v, type, name, 0, line, if_marked,
3715 emit_pch, validf->type,
3716 ACONCAT ((fld->name, ".",
3717 validf->name, NULL)));
3720 error_at_line (line,
3721 "global `%s.%s' has `desc' option but is not union",
3724 write_field_root (f, v, type, name, 0, line, if_marked,
3725 emit_pch, fld->type, fld->name);
3733 newname = xasprintf ("%s[0]", name);
3734 write_root (f, v, type->u.a.p, newname, has_length, line, if_marked,
3744 if (!start_root_entry (f, v, name, line))
3749 if (!has_length && UNION_OR_STRUCT_P (tp))
3751 oprintf (f, " >_ggc_mx_%s,\n", tp->u.s.tag);
3753 oprintf (f, " >_pch_nx_%s", tp->u.s.tag);
3755 oprintf (f, " NULL");
3757 else if (!has_length && tp->kind == TYPE_PARAM_STRUCT)
3759 oprintf (f, " >_ggc_m_");
3760 output_mangled_typename (f, tp);
3763 oprintf (f, ",\n >_pch_n_");
3764 output_mangled_typename (f, tp);
3767 oprintf (f, ",\n NULL");
3770 && (tp->kind == TYPE_POINTER || UNION_OR_STRUCT_P (tp)))
3772 oprintf (f, " >_ggc_ma_%s,\n", name);
3774 oprintf (f, " >_pch_na_%s", name);
3776 oprintf (f, " NULL");
3780 error_at_line (line,
3781 "global `%s' is pointer to unimplemented type",
3785 oprintf (f, ",\n &%s", if_marked);
3786 oprintf (f, "\n },\n");
3792 if (!start_root_entry (f, v, name, line))
3795 oprintf (f, " (gt_pointer_walker) >_ggc_m_S,\n");
3796 oprintf (f, " (gt_pointer_walker) >_pch_n_S\n");
3797 oprintf (f, " },\n");
3805 error_at_line (line, "global `%s' is unimplemented type", name);
3809 /* This generates a routine to walk an array. */
3812 write_array (outf_p f, pair_p v, const struct write_types_data *wtd)
3814 struct walk_type_data d;
3817 memset (&d, 0, sizeof (d));
3823 d.bitmap = get_lang_bitmap (v->line.file);
3826 d.prev_val[3] = prevval3 = xasprintf ("&%s", v->name);
3828 if (wtd->param_prefix)
3830 oprintf (f, "static void gt_%sa_%s\n", wtd->param_prefix, v->name);
3831 oprintf (f, " (void *, void *, gt_pointer_operator, void *);\n");
3832 oprintf (f, "static void gt_%sa_%s (ATTRIBUTE_UNUSED void *this_obj,\n",
3833 wtd->param_prefix, v->name);
3835 " ATTRIBUTE_UNUSED void *x_p,\n"
3836 " ATTRIBUTE_UNUSED gt_pointer_operator op,\n"
3837 " ATTRIBUTE_UNUSED void * cookie)\n");
3838 oprintf (d.of, "{\n");
3839 d.prev_val[0] = d.prev_val[1] = d.prev_val[2] = d.val = v->name;
3840 d.process_field = write_types_local_process_field;
3841 walk_type (v->type, &d);
3842 oprintf (f, "}\n\n");
3846 oprintf (f, "static void gt_%sa_%s (void *);\n", wtd->prefix, v->name);
3847 oprintf (f, "static void\ngt_%sa_%s (ATTRIBUTE_UNUSED void *x_p)\n",
3848 wtd->prefix, v->name);
3850 d.prev_val[0] = d.prev_val[1] = d.prev_val[2] = d.val = v->name;
3851 d.process_field = write_types_process_field;
3852 walk_type (v->type, &d);
3854 oprintf (f, "}\n\n");
3857 /* Output a table describing the locations and types of VARIABLES. */
3860 write_roots (pair_p variables, bool emit_pch)
3863 struct flist *flp = NULL;
3865 for (v = variables; v; v = v->next)
3868 get_output_file_with_visibility (CONST_CAST (input_file*,
3871 const char *length = NULL;
3872 int deletable_p = 0;
3875 for (o = v->opt; o; o = o->next)
3876 if (strcmp (o->name, "length") == 0)
3878 else if (strcmp (o->name, "deletable") == 0)
3880 else if (strcmp (o->name, "param_is") == 0)
3882 else if (strncmp (o->name, "param", 5) == 0
3883 && ISDIGIT (o->name[5]) && strcmp (o->name + 6, "_is") == 0)
3885 else if (strcmp (o->name, "if_marked") == 0)
3888 error_at_line (&v->line,
3889 "global `%s' has unknown option `%s'",
3892 for (fli = flp; fli; fli = fli->next)
3893 if (fli->f == f && f)
3897 fli = XNEW (struct flist);
3901 fli->file = v->line.file;
3902 gcc_assert (fli->file);
3905 oprintf (f, "\n/* GC roots. */\n\n");
3910 && v->type->kind == TYPE_POINTER
3911 && (v->type->u.p->kind == TYPE_POINTER
3912 || v->type->u.p->kind == TYPE_STRUCT))
3914 write_array (f, v, &ggc_wtd);
3915 write_array (f, v, &pch_wtd);
3919 for (v = variables; v; v = v->next)
3921 outf_p f = get_output_file_with_visibility (CONST_CAST (input_file*,
3928 for (o = v->opt; o; o = o->next)
3929 if (strcmp (o->name, "length") == 0)
3931 else if (strcmp (o->name, "deletable") == 0
3932 || strcmp (o->name, "if_marked") == 0)
3938 for (fli = flp; fli; fli = fli->next)
3941 if (!fli->started_p)
3945 oprintf (f, "EXPORTED_CONST struct ggc_root_tab gt_ggc_r_");
3946 put_mangled_filename (f, v->line.file);
3947 oprintf (f, "[] = {\n");
3950 write_root (f, v, v->type, v->name, length_p, &v->line, NULL, emit_pch);
3953 finish_root_table (flp, "ggc_r", "LAST_GGC_ROOT_TAB", "ggc_root_tab",
3956 for (v = variables; v; v = v->next)
3958 outf_p f = get_output_file_with_visibility (CONST_CAST (input_file*,
3964 for (o = v->opt; o; o = o->next)
3965 if (strcmp (o->name, "deletable") == 0)
3967 else if (strcmp (o->name, "if_marked") == 0)
3973 for (fli = flp; fli; fli = fli->next)
3976 if (!fli->started_p)
3980 oprintf (f, "EXPORTED_CONST struct ggc_root_tab gt_ggc_rd_");
3981 put_mangled_filename (f, v->line.file);
3982 oprintf (f, "[] = {\n");
3985 oprintf (f, " { &%s, 1, sizeof (%s), NULL, NULL },\n",
3989 finish_root_table (flp, "ggc_rd", "LAST_GGC_ROOT_TAB", "ggc_root_tab",
3990 "gt_ggc_deletable_rtab");
3992 for (v = variables; v; v = v->next)
3994 outf_p f = get_output_file_with_visibility (CONST_CAST (input_file*,
3997 const char *if_marked = NULL;
4001 for (o = v->opt; o; o = o->next)
4002 if (strcmp (o->name, "length") == 0)
4004 else if (strcmp (o->name, "if_marked") == 0)
4005 if_marked = o->info;
4007 if (if_marked == NULL)
4010 if (v->type->kind != TYPE_POINTER
4011 || v->type->u.p->kind != TYPE_PARAM_STRUCT
4012 || v->type->u.p->u.param_struct.stru != find_structure ("htab", 0))
4014 error_at_line (&v->line,
4015 "if_marked option used but not hash table");
4019 for (fli = flp; fli; fli = fli->next)
4022 if (!fli->started_p)
4026 oprintf (f, "EXPORTED_CONST struct ggc_cache_tab gt_ggc_rc_");
4027 put_mangled_filename (f, v->line.file);
4028 oprintf (f, "[] = {\n");
4031 write_root (f, v, v->type->u.p->u.param_struct.param[0],
4032 v->name, length_p, &v->line, if_marked, emit_pch);
4035 finish_root_table (flp, "ggc_rc", "LAST_GGC_CACHE_TAB", "ggc_cache_tab",
4036 "gt_ggc_cache_rtab");
4041 for (v = variables; v; v = v->next)
4043 outf_p f = get_output_file_with_visibility (CONST_CAST (input_file*,
4047 int if_marked_p = 0;
4050 for (o = v->opt; o; o = o->next)
4051 if (strcmp (o->name, "length") == 0)
4053 else if (strcmp (o->name, "if_marked") == 0)
4059 for (fli = flp; fli; fli = fli->next)
4062 if (!fli->started_p)
4066 oprintf (f, "EXPORTED_CONST struct ggc_root_tab gt_pch_rc_");
4067 put_mangled_filename (f, v->line.file);
4068 oprintf (f, "[] = {\n");
4071 write_root (f, v, v->type, v->name, length_p, &v->line, NULL, emit_pch);
4074 finish_root_table (flp, "pch_rc", "LAST_GGC_ROOT_TAB", "ggc_root_tab",
4075 "gt_pch_cache_rtab");
4077 for (v = variables; v; v = v->next)
4079 outf_p f = get_output_file_with_visibility (CONST_CAST (input_file*,
4085 for (o = v->opt; o; o = o->next)
4086 if (strcmp (o->name, "deletable") == 0
4087 || strcmp (o->name, "if_marked") == 0)
4093 if (!contains_scalar_p (v->type))
4096 for (fli = flp; fli; fli = fli->next)
4099 if (!fli->started_p)
4103 oprintf (f, "EXPORTED_CONST struct ggc_root_tab gt_pch_rs_");
4104 put_mangled_filename (f, v->line.file);
4105 oprintf (f, "[] = {\n");
4108 oprintf (f, " { &%s, 1, sizeof (%s), NULL, NULL },\n",
4112 finish_root_table (flp, "pch_rs", "LAST_GGC_ROOT_TAB", "ggc_root_tab",
4113 "gt_pch_scalar_rtab");
4116 /* Record the definition of a generic VEC structure, as if we had expanded
4117 the macros in vec.h:
4119 typedef struct VEC_<type>_base GTY(()) {
4122 <type> GTY((length ("%h.num"))) vec[1];
4125 where the GTY(()) tags are only present if is_scalar is _false_. */
4128 note_def_vec (const char *type_name, bool is_scalar, struct fileloc *pos)
4133 type_p len_ty = create_scalar_type ("unsigned");
4134 const char *name = concat ("VEC_", type_name, "_base", (char *) 0);
4138 t = create_scalar_type (type_name);
4143 t = resolve_typedef (type_name, pos);
4144 o = create_option (0, "length", "%h.num");
4147 /* We assemble the field list in reverse order. */
4148 fields = create_field_at (0, create_array (t, "1"), "vec", o, pos);
4149 fields = create_field_at (fields, len_ty, "alloc", 0, pos);
4150 fields = create_field_at (fields, len_ty, "num", 0, pos);
4152 do_typedef (name, new_structure (name, 0, pos, fields, 0), pos);
4155 /* Record the definition of an allocation-specific VEC structure, as if
4156 we had expanded the macros in vec.h:
4158 typedef struct VEC_<type>_<astrat> {
4159 VEC_<type>_base base;
4160 } VEC_<type>_<astrat>;
4163 note_def_vec_alloc (const char *type, const char *astrat, struct fileloc *pos)
4165 const char *astratname = concat ("VEC_", type, "_", astrat, (char *) 0);
4166 const char *basename = concat ("VEC_", type, "_base", (char *) 0);
4168 pair_p field = create_field_at (0, resolve_typedef (basename, pos),
4171 do_typedef (astratname, new_structure (astratname, 0, pos, field, 0), pos);
4174 /* Returns the specifier keyword for a string or union type S, empty string
4178 get_type_specifier (const type_p s)
4180 if (s->kind == TYPE_STRUCT || s->kind == TYPE_LANG_STRUCT)
4182 if (s->kind == TYPE_UNION)
4187 /* TRUE if type S has the GTY variable_size annotation. */
4190 variable_size_p (const type_p s)
4193 for (o = s->u.s.opt; o; o = o->next)
4194 if (strcmp (o->name, "variable_size") == 0)
4202 { any_zone, specific_zone };
4204 /* Writes one typed allocator definition for type identifier TYPE_NAME with
4205 optional type specifier TYPE_SPECIFIER. The allocator name will contain
4206 ALLOCATOR_TYPE. If VARIABLE_SIZE is true, the allocator will have an extra
4207 parameter specifying number of bytes to allocate. If QUANTITY is set to
4208 VECTOR, a vector allocator will be output, if ZONE is set to SPECIFIC_ZONE,
4209 the allocator will be zone-specific. */
4212 write_typed_alloc_def (bool variable_size, const char *type_specifier,
4213 const char *type_name, const char *allocator_type,
4214 enum alloc_quantity quantity, enum alloc_zone zone)
4216 bool two_args = variable_size && (quantity == vector);
4217 bool third_arg = ((zone == specific_zone)
4218 && (variable_size || (quantity == vector)));
4220 oprintf (header_file, "#define ggc_alloc_%s%s", allocator_type, type_name);
4221 oprintf (header_file, "(%s%s%s%s%s) ",
4222 (variable_size ? "SIZE" : ""),
4223 (two_args ? ", " : ""),
4224 (quantity == vector) ? "n" : "",
4225 (third_arg ? ", " : ""), (zone == specific_zone) ? "z" : "");
4226 oprintf (header_file, "((%s%s *)", type_specifier, type_name);
4227 oprintf (header_file, "(ggc_internal_%salloc_stat (", allocator_type);
4228 if (zone == specific_zone)
4229 oprintf (header_file, "z, ");
4231 oprintf (header_file, "SIZE");
4233 oprintf (header_file, "sizeof (%s%s)", type_specifier, type_name);
4234 if (quantity == vector)
4235 oprintf (header_file, ", n");
4236 oprintf (header_file, " MEM_STAT_INFO)))\n");
4239 /* Writes a typed allocator definition for a struct or union S. */
4242 write_typed_struct_alloc_def (const type_p s, const char *allocator_type,
4243 enum alloc_quantity quantity,
4244 enum alloc_zone zone)
4246 write_typed_alloc_def (variable_size_p (s), get_type_specifier (s),
4247 s->u.s.tag, allocator_type, quantity, zone);
4250 /* Writes a typed allocator definition for a typedef P. */
4253 write_typed_typedef_alloc_def (const pair_p p, const char *allocator_type,
4254 enum alloc_quantity quantity,
4255 enum alloc_zone zone)
4257 write_typed_alloc_def (variable_size_p (p->type), "", p->name,
4258 allocator_type, quantity, zone);
4261 /* Writes typed allocator definitions for the types in STRUCTURES and
4262 TYPEDEFS that are used by GC. */
4265 write_typed_alloc_defns (const type_p structures, const pair_p typedefs)
4270 oprintf (header_file,
4271 "\n/* Allocators for known structs and unions. */\n\n");
4272 for (s = structures; s; s = s->next)
4274 if (!USED_BY_TYPED_GC_P (s))
4276 write_typed_struct_alloc_def (s, "", single, any_zone);
4277 write_typed_struct_alloc_def (s, "cleared_", single, any_zone);
4278 write_typed_struct_alloc_def (s, "vec_", vector, any_zone);
4279 write_typed_struct_alloc_def (s, "cleared_vec_", vector, any_zone);
4280 write_typed_struct_alloc_def (s, "zone_", single, specific_zone);
4281 write_typed_struct_alloc_def (s, "zone_cleared_", single,
4283 write_typed_struct_alloc_def (s, "zone_vec_", vector, specific_zone);
4284 write_typed_struct_alloc_def (s, "zone_cleared_vec_", vector,
4288 oprintf (header_file, "\n/* Allocators for known typedefs. */\n");
4289 for (p = typedefs; p; p = p->next)
4292 if (!USED_BY_TYPED_GC_P (s) || (strcmp (p->name, s->u.s.tag) == 0))
4294 write_typed_typedef_alloc_def (p, "", single, any_zone);
4295 write_typed_typedef_alloc_def (p, "cleared_", single, any_zone);
4296 write_typed_typedef_alloc_def (p, "vec_", vector, any_zone);
4297 write_typed_typedef_alloc_def (p, "cleared_vec_", vector, any_zone);
4298 write_typed_typedef_alloc_def (p, "zone_", single, specific_zone);
4299 write_typed_typedef_alloc_def (p, "zone_cleared_", single,
4301 write_typed_typedef_alloc_def (p, "zone_cleared_vec_", vector,
4306 /* Prints not-as-ugly version of a typename of T to OF. Trades the uniquness
4307 guaranteee for somewhat increased readability. If name conflicts do happen,
4308 this funcion will have to be adjusted to be more like
4309 output_mangled_typename. */
4312 output_typename (outf_p of, const_type_p t)
4317 oprintf (of, "str");
4320 oprintf (of, "scalar");
4323 output_typename (of, t->u.p);
4327 case TYPE_LANG_STRUCT:
4328 oprintf (of, "%s", t->u.s.tag);
4330 case TYPE_PARAM_STRUCT:
4333 for (i = 0; i < NUM_PARAM; i++)
4334 if (t->u.param_struct.param[i] != NULL)
4336 output_typename (of, t->u.param_struct.param[i]);
4339 output_typename (of, t->u.param_struct.stru);
4347 /* Writes a typed GC allocator for type S that is suitable as a callback for
4348 the splay tree implementation in libiberty. */
4351 write_splay_tree_allocator_def (const_type_p s)
4353 outf_p of = get_output_file_with_visibility (NULL);
4354 oprintf (of, "void * ggc_alloc_splay_tree_");
4355 output_typename (of, s);
4356 oprintf (of, " (int sz, void * nl)\n");
4357 oprintf (of, "{\n");
4358 oprintf (of, " return ggc_splay_alloc (");
4359 oprintf (of, "gt_e_");
4360 output_mangled_typename (of, s);
4361 oprintf (of, ", sz, nl);\n");
4362 oprintf (of, "}\n\n");
4365 /* Writes typed GC allocators for PARAM_STRUCTS that are suitable as callbacks
4366 for the splay tree implementation in libiberty. */
4369 write_splay_tree_allocators (const_type_p param_structs)
4373 oprintf (header_file, "\n/* Splay tree callback allocators. */\n");
4374 for (s = param_structs; s; s = s->next)
4375 if (s->gc_used == GC_POINTED_TO)
4377 oprintf (header_file, "extern void * ggc_alloc_splay_tree_");
4378 output_typename (header_file, s);
4379 oprintf (header_file, " (int, void *);\n");
4380 write_splay_tree_allocator_def (s);
4384 static void dump_pair (int indent, pair_p p);
4385 static void dump_type (int indent, type_p p);
4386 static void dump_type_list (int indent, type_p p);
4390 /* Dumps the value of typekind KIND. */
4393 dump_typekind (int indent, enum typekind kind)
4395 printf ("%*ckind = ", indent, ' ');
4399 printf ("TYPE_SCALAR");
4402 printf ("TYPE_STRING");
4405 printf ("TYPE_STRUCT");
4408 printf ("TYPE_UNION");
4411 printf ("TYPE_POINTER");
4414 printf ("TYPE_ARRAY");
4416 case TYPE_LANG_STRUCT:
4417 printf ("TYPE_LANG_STRUCT");
4419 case TYPE_PARAM_STRUCT:
4420 printf ("TYPE_PARAM_STRUCT");
4428 /* Dumps the value of GC_USED flag. */
4431 dump_gc_used (int indent, enum gc_used_enum gc_used)
4433 printf ("%*cgc_used = ", indent, ' ');
4437 printf ("GC_UNUSED");
4442 case GC_MAYBE_POINTED_TO:
4443 printf ("GC_MAYBE_POINTED_TO");
4446 printf ("GC_POINTED_TO");
4454 /* Dumps the type options OPT. */
4457 dump_options (int indent, options_p opt)
4460 printf ("%*coptions = ", indent, ' ');
4464 printf ("%s:%s ", o->name, o->info);
4470 /* Dumps the source file location in LINE. */
4473 dump_fileloc (int indent, struct fileloc line)
4475 printf ("%*cfileloc: file = %s, line = %d\n", indent, ' ',
4476 get_input_file_name (line.file),
4480 /* Recursively dumps the struct, union, or a language-specific
4484 dump_type_u_s (int indent, type_p t)
4488 gcc_assert (t->kind == TYPE_STRUCT || t->kind == TYPE_UNION
4489 || t->kind == TYPE_LANG_STRUCT);
4490 printf ("%*cu.s.tag = %s\n", indent, ' ', t->u.s.tag);
4491 dump_fileloc (indent, t->u.s.line);
4492 printf ("%*cu.s.fields =\n", indent, ' ');
4493 fields = t->u.s.fields;
4496 dump_pair (indent + INDENT, fields);
4497 fields = fields->next;
4499 printf ("%*cend of fields of type %p\n", indent, ' ', (void *) t);
4500 dump_options (indent, t->u.s.opt);
4501 printf ("%*cu.s.bitmap = %X\n", indent, ' ', t->u.s.bitmap);
4502 if (t->kind == TYPE_LANG_STRUCT)
4504 printf ("%*cu.s.lang_struct:\n", indent, ' ');
4505 dump_type_list (indent + INDENT, t->u.s.lang_struct);
4509 /* Recursively dumps the array T. */
4512 dump_type_u_a (int indent, type_p t)
4514 gcc_assert (t->kind == TYPE_ARRAY);
4515 printf ("%*clen = %s, u.a.p:\n", indent, ' ', t->u.a.len);
4516 dump_type_list (indent + INDENT, t->u.a.p);
4519 /* Recursively dumps the parameterized struct T. */
4522 dump_type_u_param_struct (int indent, type_p t)
4525 gcc_assert (t->kind == TYPE_PARAM_STRUCT);
4526 printf ("%*cu.param_struct.stru:\n", indent, ' ');
4527 dump_type_list (indent, t->u.param_struct.stru);
4528 dump_fileloc (indent, t->u.param_struct.line);
4529 for (i = 0; i < NUM_PARAM; i++)
4531 if (t->u.param_struct.param[i] == NULL)
4533 printf ("%*cu.param_struct.param[%d]:\n", indent, ' ', i);
4534 dump_type (indent + INDENT, t->u.param_struct.param[i]);
4538 /* Recursively dumps the type list T. */
4541 dump_type_list (int indent, type_p t)
4546 dump_type (indent, p);
4551 static htab_t seen_types;
4553 /* Recursively dumps the type T if it was not dumped previously. */
4556 dump_type (int indent, type_p t)
4560 printf ("%*cType at %p: ", indent, ' ', (void *) t);
4561 slot = htab_find_slot (seen_types, t, INSERT);
4564 printf ("already seen.\n");
4570 dump_typekind (indent, t->kind);
4571 printf ("%*cpointer_to = %p\n", indent + INDENT, ' ',
4572 (void *) t->pointer_to);
4573 dump_gc_used (indent + INDENT, t->gc_used);
4577 printf ("%*cscalar_is_char = %s\n", indent + INDENT, ' ',
4578 t->u.scalar_is_char ? "true" : "false");
4584 case TYPE_LANG_STRUCT:
4585 dump_type_u_s (indent + INDENT, t);
4588 printf ("%*cp:\n", indent + INDENT, ' ');
4589 dump_type (indent + INDENT, t->u.p);
4592 dump_type_u_a (indent + INDENT, t);
4594 case TYPE_PARAM_STRUCT:
4595 dump_type_u_param_struct (indent + INDENT, t);
4600 printf ("%*cEnd of type at %p\n", indent, ' ', (void *) t);
4603 /* Dumps the pair P. */
4606 dump_pair (int indent, pair_p p)
4608 printf ("%*cpair: name = %s\n", indent, ' ', p->name);
4609 dump_type (indent, p->type);
4610 dump_fileloc (indent, p->line);
4611 dump_options (indent, p->opt);
4612 printf ("%*cEnd of pair %s\n", indent, ' ', p->name);
4615 /* Dumps the list of pairs PP. */
4618 dump_pair_list (const char *name, pair_p pp)
4621 printf ("%s:\n", name);
4622 for (p = pp; p != NULL; p = p->next)
4624 printf ("End of %s\n\n", name);
4627 /* Dumps the STRUCTURES. */
4630 dump_structures (const char *name, type_p structures)
4632 printf ("%s:\n", name);
4633 dump_type_list (0, structures);
4634 printf ("End of %s\n\n", name);
4637 /* Dumps the internal structures of gengtype. */
4640 dump_everything (void)
4642 seen_types = htab_create (100, htab_hash_pointer, htab_eq_pointer, NULL);
4643 dump_pair_list ("typedefs", typedefs);
4644 dump_structures ("structures", structures);
4645 dump_structures ("param_structs", param_structs);
4646 dump_pair_list ("variables", variables);
4647 htab_delete (seen_types);
4652 /* Option specification for getopt_long. */
4653 static const struct option gengtype_long_options[] = {
4654 {"help", no_argument, NULL, 'h'},
4655 {"version", no_argument, NULL, 'V'},
4656 {"verbose", no_argument, NULL, 'v'},
4657 {"dump", no_argument, NULL, 'd'},
4658 {"debug", no_argument, NULL, 'D'},
4659 {"plugin", required_argument, NULL, 'P'},
4660 {"srcdir", required_argument, NULL, 'S'},
4661 {"backupdir", required_argument, NULL, 'B'},
4662 {"inputs", required_argument, NULL, 'I'},
4663 {"read-state", required_argument, NULL, 'r'},
4664 {"write-state", required_argument, NULL, 'w'},
4665 /* Terminating NULL placeholder. */
4666 {NULL, no_argument, NULL, 0},
4673 printf ("Usage: %s\n", progname);
4674 printf ("\t -h | --help " " \t# Give this help.\n");
4675 printf ("\t -D | --debug "
4676 " \t# Give debug output to debug %s itself.\n", progname);
4677 printf ("\t -V | --version " " \t# Give version information.\n");
4678 printf ("\t -v | --verbose \t# Increase verbosity. Can be given several times.\n");
4679 printf ("\t -d | --dump " " \t# Dump state for debugging.\n");
4680 printf ("\t -P | --plugin <output-file> <plugin-src> ... "
4681 " \t# Generate for plugin.\n");
4682 printf ("\t -S | --srcdir <GCC-directory> "
4683 " \t# Specify the GCC source directory.\n");
4684 printf ("\t -B | --backupdir <directory> "
4685 " \t# Specify the backup directory for updated files.\n");
4686 printf ("\t -I | --inputs <input-list> "
4687 " \t# Specify the file with source files list.\n");
4688 printf ("\t -w | --write-state <state-file> " " \t# Write a state file.\n");
4689 printf ("\t -r | --read-state <state-file> " " \t# Read a state file.\n");
4693 print_version (void)
4695 printf ("%s %s%s\n", progname, pkgversion_string, version_string);
4696 printf ("Report bugs: %s\n", bug_report_url);
4699 /* Parse the program options using getopt_long... */
4701 parse_program_options (int argc, char **argv)
4704 while ((opt = getopt_long (argc, argv, "hVvdP:S:B:I:w:r:D",
4705 gengtype_long_options, NULL)) >= 0)
4709 case 'h': /* --help */
4712 case 'V': /* --version */
4715 case 'd': /* --dump */
4718 case 'D': /* --debug */
4721 case 'v': /* --verbose */
4724 case 'P': /* --plugin */
4726 plugin_output_filename = optarg;
4728 fatal ("missing plugin output file name");
4730 case 'S': /* --srcdir */
4734 fatal ("missing source directory");
4735 srcdir_len = strlen (srcdir);
4737 case 'B': /* --backupdir */
4739 backup_dir = optarg;
4741 fatal ("missing backup directory");
4743 case 'I': /* --inputs */
4747 fatal ("missing input list");
4749 case 'r': /* --read-state */
4751 read_state_filename = optarg;
4753 fatal ("missing read state file");
4754 DBGPRINTF ("read state %s\n", optarg);
4756 case 'w': /* --write-state */
4757 DBGPRINTF ("write state %s\n", optarg);
4759 write_state_filename = optarg;
4761 fatal ("missing write state file");
4764 fprintf (stderr, "%s: unknown flag '%c'\n", progname, opt);
4766 fatal ("unexpected flag");
4769 if (plugin_output_filename)
4771 /* In plugin mode we require some input files. */
4774 fatal ("no source files given in plugin mode");
4775 nb_plugin_files = argc - optind;
4776 plugin_files = XNEWVEC (input_file*, nb_plugin_files);
4777 for (i = 0; i < (int) nb_plugin_files; i++)
4779 char *name = argv[i + optind];
4780 plugin_files[i] = input_file_by_name (name);
4787 /******* Manage input files. ******/
4789 /* Hash table of unique input file names. */
4790 static htab_t input_file_htab;
4792 /* Find or allocate a new input_file by hash-consing it. */
4794 input_file_by_name (const char* name)
4797 input_file* f = NULL;
4801 namlen = strlen (name);
4802 f = XCNEWVAR (input_file, sizeof (input_file)+namlen+2);
4805 strcpy (f->inpname, name);
4806 slot = htab_find_slot (input_file_htab, f, INSERT);
4807 gcc_assert (slot != NULL);
4810 /* Already known input file. */
4812 return (input_file*)(*slot);
4814 /* New input file. */
4819 /* Hash table support routines for input_file-s. */
4821 htab_hash_inputfile (const void *p)
4823 const input_file *inpf = (const input_file *) p;
4825 return htab_hash_string (get_input_file_name (inpf));
4829 htab_eq_inputfile (const void *x, const void *y)
4831 const input_file *inpfx = (const input_file *) x;
4832 const input_file *inpfy = (const input_file *) y;
4833 gcc_assert (inpfx != NULL && inpfy != NULL);
4834 return !strcmp (get_input_file_name (inpfx), get_input_file_name (inpfy));
4839 main (int argc, char **argv)
4842 static struct fileloc pos = { NULL, 0 };
4843 outf_p output_header;
4845 /* Mandatory common initializations. */
4846 progname = "gengtype"; /* For fatal and messages. */
4847 /* Create the hash-table used to hash-cons input files. */
4849 htab_create (800, htab_hash_inputfile, htab_eq_inputfile, NULL);
4850 /* Initialize our special input files. */
4851 this_file = input_file_by_name (__FILE__);
4852 system_h_file = input_file_by_name ("system.h");
4853 /* Set the scalar_is_char union number for predefined scalar types. */
4854 scalar_nonchar.u.scalar_is_char = FALSE;
4855 scalar_char.u.scalar_is_char = TRUE;
4857 parse_program_options (argc, argv);
4862 time_t now = (time_t) 0;
4864 DBGPRINTF ("gengtype started pid %d at %s",
4865 (int) getpid (), ctime (&now));
4867 #endif /* ENABLE_CHECKING */
4869 /* Parse the input list and the input files. */
4870 DBGPRINTF ("inputlist %s", inputlist);
4871 if (read_state_filename)
4873 fatal ("read state %s not implemented yet", read_state_filename);
4874 /* TODO: implement read state. */
4878 /* These types are set up with #define or else outside of where
4879 we can see them. We should initialize them before calling
4881 #define POS_HERE(Call) do { pos.file = this_file; pos.line = __LINE__; \
4883 POS_HERE (do_scalar_typedef ("CUMULATIVE_ARGS", &pos));
4884 POS_HERE (do_scalar_typedef ("REAL_VALUE_TYPE", &pos));
4885 POS_HERE (do_scalar_typedef ("FIXED_VALUE_TYPE", &pos));
4886 POS_HERE (do_scalar_typedef ("double_int", &pos));
4887 POS_HERE (do_scalar_typedef ("uint64_t", &pos));
4888 POS_HERE (do_scalar_typedef ("uint8", &pos));
4889 POS_HERE (do_scalar_typedef ("jword", &pos));
4890 POS_HERE (do_scalar_typedef ("JCF_u2", &pos));
4891 POS_HERE (do_scalar_typedef ("void", &pos));
4892 POS_HERE (do_typedef ("PTR",
4893 create_pointer (resolve_typedef ("void", &pos)),
4896 read_input_list (inputlist);
4897 for (i = 0; i < num_gt_files; i++)
4899 parse_file (get_input_file_name (gt_files[i]));
4900 DBGPRINTF ("parsed file #%d %s",
4901 (int) i, get_input_file_name (gt_files[i]));
4903 if (verbosity_level >= 1)
4904 printf ("%s parsed %d files\n", progname, (int) num_gt_files);
4906 DBGPRINT_COUNT_TYPE ("structures after parsing", structures);
4907 DBGPRINT_COUNT_TYPE ("param_structs after parsing", param_structs);
4911 fatal ("either an input list or a read state file should be given");
4916 if (plugin_output_filename)
4919 /* In plugin mode, we should have read a state file, and have
4920 given at least one plugin file. */
4921 if (!read_state_filename)
4922 fatal ("No read state given in plugin mode for %s",
4923 plugin_output_filename);
4925 if (nb_plugin_files == 0 || !plugin_files)
4926 fatal ("No plugin files given in plugin mode for %s",
4927 plugin_output_filename);
4929 /* Parse our plugin files. */
4930 for (ix = 0; ix < nb_plugin_files; ix++)
4931 parse_file (get_input_file_name (plugin_files[ix]));
4936 plugin_output = create_file ("GCC", plugin_output_filename);
4937 DBGPRINTF ("created plugin_output %p named %s",
4938 (void *) plugin_output, plugin_output->name);
4941 { /* No plugin files, we are in normal mode. */
4943 fatal ("gengtype needs a source directory in normal mode");
4950 /* The call to set_gc_used may indirectly call find_param_structure
4951 hence enlarge the param_structs list of types. */
4952 set_gc_used (variables);
4954 /* We should write the state here, but it is not yet implemented. */
4955 if (write_state_filename)
4957 fatal ("write state %s in not yet implemented", write_state_filename);
4958 /* TODO: implement write state. */
4964 write_enum_defn (structures, param_structs);
4965 write_typed_alloc_defns (structures, typedefs);
4966 output_header = plugin_output ? plugin_output : header_file;
4967 DBGPRINT_COUNT_TYPE ("structures before write_types outputheader",
4969 DBGPRINT_COUNT_TYPE ("param_structs before write_types outputheader",
4972 write_types (output_header, structures, param_structs, &ggc_wtd);
4973 if (plugin_files == NULL)
4975 DBGPRINT_COUNT_TYPE ("structures before write_types headerfil",
4977 DBGPRINT_COUNT_TYPE ("param_structs before write_types headerfil",
4979 write_types (header_file, structures, param_structs, &pch_wtd);
4980 write_local (header_file, structures, param_structs);
4982 write_splay_tree_allocators (param_structs);
4983 write_roots (variables, plugin_files == NULL);
4985 close_output_files ();
4990 /* Don't bother about free-ing any input or plugin file, etc. */