1 /* Handle modules, which amounts to loading and saving symbols and
2 their attendant structures.
3 Copyright (C) 2000-2015 Free Software Foundation, Inc.
4 Contributed by Andy Vaught
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify it under
9 the terms of the GNU General Public License as published by the Free
10 Software Foundation; either version 3, or (at your option) any later
13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING3. If not see
20 <http://www.gnu.org/licenses/>. */
22 /* The syntax of gfortran modules resembles that of lisp lists, i.e. a
23 sequence of atoms, which can be left or right parenthesis, names,
24 integers or strings. Parenthesis are always matched which allows
25 us to skip over sections at high speed without having to know
26 anything about the internal structure of the lists. A "name" is
27 usually a fortran 95 identifier, but can also start with '@' in
28 order to reference a hidden symbol.
30 The first line of a module is an informational message about what
31 created the module, the file it came from and when it was created.
32 The second line is a warning for people not to edit the module.
33 The rest of the module looks like:
35 ( ( <Interface info for UPLUS> )
36 ( <Interface info for UMINUS> )
39 ( ( <name of operator interface> <module of op interface> <i/f1> ... )
42 ( ( <name of generic interface> <module of generic interface> <i/f1> ... )
45 ( ( <common name> <symbol> <saved flag>)
51 ( <Symbol Number (in no particular order)>
53 <Module name of symbol>
54 ( <symbol information> )
63 In general, symbols refer to other symbols by their symbol number,
64 which are zero based. Symbols are written to the module in no
69 #include "coretypes.h"
73 #include "parse.h" /* FIXME */
74 #include "constructor.h"
79 #include "stringpool.h"
83 #define MODULE_EXTENSION ".mod"
84 #define SUBMODULE_EXTENSION ".smod"
86 /* Don't put any single quote (') in MOD_VERSION, if you want it to be
88 #define MOD_VERSION "14"
91 /* Structure that describes a position within a module file. */
100 /* Structure for list of symbols of intrinsic modules. */
113 P_UNKNOWN
= 0, P_OTHER
, P_NAMESPACE
, P_COMPONENT
, P_SYMBOL
117 /* The fixup structure lists pointers to pointers that have to
118 be updated when a pointer value becomes known. */
120 typedef struct fixup_t
123 struct fixup_t
*next
;
128 /* Structure for holding extra info needed for pointers being read. */
144 typedef struct pointer_info
146 BBT_HEADER (pointer_info
);
150 /* The first component of each member of the union is the pointer
157 void *pointer
; /* Member for doing pointer searches. */
162 char *true_name
, *module
, *binding_label
;
164 gfc_symtree
*symtree
;
165 enum gfc_rsym_state state
;
166 int ns
, referenced
, renamed
;
174 enum gfc_wsym_state state
;
183 #define gfc_get_pointer_info() XCNEW (pointer_info)
186 /* Local variables */
188 /* The gzFile for the module we're reading or writing. */
189 static gzFile module_fp
;
192 /* The name of the module we're reading (USE'ing) or writing. */
193 static const char *module_name
;
194 /* The name of the .smod file that the submodule will write to. */
195 static const char *submodule_name
;
196 static gfc_use_list
*module_list
;
198 /* If we're reading an intrinsic module, this is its ID. */
199 static intmod_id current_intmod
;
201 /* Content of module. */
202 static char* module_content
;
204 static long module_pos
;
205 static int module_line
, module_column
, only_flag
;
206 static int prev_module_line
, prev_module_column
;
209 { IO_INPUT
, IO_OUTPUT
}
212 static gfc_use_rename
*gfc_rename_list
;
213 static pointer_info
*pi_root
;
214 static int symbol_number
; /* Counter for assigning symbol numbers */
216 /* Tells mio_expr_ref to make symbols for unused equivalence members. */
217 static bool in_load_equiv
;
221 /*****************************************************************/
223 /* Pointer/integer conversion. Pointers between structures are stored
224 as integers in the module file. The next couple of subroutines
225 handle this translation for reading and writing. */
227 /* Recursively free the tree of pointer structures. */
230 free_pi_tree (pointer_info
*p
)
235 if (p
->fixup
!= NULL
)
236 gfc_internal_error ("free_pi_tree(): Unresolved fixup");
238 free_pi_tree (p
->left
);
239 free_pi_tree (p
->right
);
241 if (iomode
== IO_INPUT
)
243 XDELETEVEC (p
->u
.rsym
.true_name
);
244 XDELETEVEC (p
->u
.rsym
.module
);
245 XDELETEVEC (p
->u
.rsym
.binding_label
);
252 /* Compare pointers when searching by pointer. Used when writing a
256 compare_pointers (void *_sn1
, void *_sn2
)
258 pointer_info
*sn1
, *sn2
;
260 sn1
= (pointer_info
*) _sn1
;
261 sn2
= (pointer_info
*) _sn2
;
263 if (sn1
->u
.pointer
< sn2
->u
.pointer
)
265 if (sn1
->u
.pointer
> sn2
->u
.pointer
)
272 /* Compare integers when searching by integer. Used when reading a
276 compare_integers (void *_sn1
, void *_sn2
)
278 pointer_info
*sn1
, *sn2
;
280 sn1
= (pointer_info
*) _sn1
;
281 sn2
= (pointer_info
*) _sn2
;
283 if (sn1
->integer
< sn2
->integer
)
285 if (sn1
->integer
> sn2
->integer
)
292 /* Initialize the pointer_info tree. */
301 compare
= (iomode
== IO_INPUT
) ? compare_integers
: compare_pointers
;
303 /* Pointer 0 is the NULL pointer. */
304 p
= gfc_get_pointer_info ();
309 gfc_insert_bbt (&pi_root
, p
, compare
);
311 /* Pointer 1 is the current namespace. */
312 p
= gfc_get_pointer_info ();
313 p
->u
.pointer
= gfc_current_ns
;
315 p
->type
= P_NAMESPACE
;
317 gfc_insert_bbt (&pi_root
, p
, compare
);
323 /* During module writing, call here with a pointer to something,
324 returning the pointer_info node. */
326 static pointer_info
*
327 find_pointer (void *gp
)
334 if (p
->u
.pointer
== gp
)
336 p
= (gp
< p
->u
.pointer
) ? p
->left
: p
->right
;
343 /* Given a pointer while writing, returns the pointer_info tree node,
344 creating it if it doesn't exist. */
346 static pointer_info
*
347 get_pointer (void *gp
)
351 p
= find_pointer (gp
);
355 /* Pointer doesn't have an integer. Give it one. */
356 p
= gfc_get_pointer_info ();
359 p
->integer
= symbol_number
++;
361 gfc_insert_bbt (&pi_root
, p
, compare_pointers
);
367 /* Given an integer during reading, find it in the pointer_info tree,
368 creating the node if not found. */
370 static pointer_info
*
371 get_integer (int integer
)
381 c
= compare_integers (&t
, p
);
385 p
= (c
< 0) ? p
->left
: p
->right
;
391 p
= gfc_get_pointer_info ();
392 p
->integer
= integer
;
395 gfc_insert_bbt (&pi_root
, p
, compare_integers
);
401 /* Resolve any fixups using a known pointer. */
404 resolve_fixups (fixup_t
*f
, void *gp
)
417 /* Convert a string such that it starts with a lower-case character. Used
418 to convert the symtree name of a derived-type to the symbol name or to
419 the name of the associated generic function. */
422 dt_lower_string (const char *name
)
424 if (name
[0] != (char) TOLOWER ((unsigned char) name
[0]))
425 return gfc_get_string ("%c%s", (char) TOLOWER ((unsigned char) name
[0]),
427 return gfc_get_string (name
);
431 /* Convert a string such that it starts with an upper-case character. Used to
432 return the symtree-name for a derived type; the symbol name itself and the
433 symtree/symbol name of the associated generic function start with a lower-
437 dt_upper_string (const char *name
)
439 if (name
[0] != (char) TOUPPER ((unsigned char) name
[0]))
440 return gfc_get_string ("%c%s", (char) TOUPPER ((unsigned char) name
[0]),
442 return gfc_get_string (name
);
445 /* Call here during module reading when we know what pointer to
446 associate with an integer. Any fixups that exist are resolved at
450 associate_integer_pointer (pointer_info
*p
, void *gp
)
452 if (p
->u
.pointer
!= NULL
)
453 gfc_internal_error ("associate_integer_pointer(): Already associated");
457 resolve_fixups (p
->fixup
, gp
);
463 /* During module reading, given an integer and a pointer to a pointer,
464 either store the pointer from an already-known value or create a
465 fixup structure in order to store things later. Returns zero if
466 the reference has been actually stored, or nonzero if the reference
467 must be fixed later (i.e., associate_integer_pointer must be called
468 sometime later. Returns the pointer_info structure. */
470 static pointer_info
*
471 add_fixup (int integer
, void *gp
)
477 p
= get_integer (integer
);
479 if (p
->integer
== 0 || p
->u
.pointer
!= NULL
)
482 *cp
= (char *) p
->u
.pointer
;
491 f
->pointer
= (void **) gp
;
498 /*****************************************************************/
500 /* Parser related subroutines */
502 /* Free the rename list left behind by a USE statement. */
505 free_rename (gfc_use_rename
*list
)
507 gfc_use_rename
*next
;
509 for (; list
; list
= next
)
517 /* Match a USE statement. */
522 char name
[GFC_MAX_SYMBOL_LEN
+ 1], module_nature
[GFC_MAX_SYMBOL_LEN
+ 1];
523 gfc_use_rename
*tail
= NULL
, *new_use
;
524 interface_type type
, type2
;
527 gfc_use_list
*use_list
;
529 use_list
= gfc_get_use_list ();
531 if (gfc_match (" , ") == MATCH_YES
)
533 if ((m
= gfc_match (" %n ::", module_nature
)) == MATCH_YES
)
535 if (!gfc_notify_std (GFC_STD_F2003
, "module "
536 "nature in USE statement at %C"))
539 if (strcmp (module_nature
, "intrinsic") == 0)
540 use_list
->intrinsic
= true;
543 if (strcmp (module_nature
, "non_intrinsic") == 0)
544 use_list
->non_intrinsic
= true;
547 gfc_error ("Module nature in USE statement at %C shall "
548 "be either INTRINSIC or NON_INTRINSIC");
555 /* Help output a better error message than "Unclassifiable
557 gfc_match (" %n", module_nature
);
558 if (strcmp (module_nature
, "intrinsic") == 0
559 || strcmp (module_nature
, "non_intrinsic") == 0)
560 gfc_error ("\"::\" was expected after module nature at %C "
561 "but was not found");
568 m
= gfc_match (" ::");
569 if (m
== MATCH_YES
&&
570 !gfc_notify_std(GFC_STD_F2003
, "\"USE :: module\" at %C"))
575 m
= gfc_match ("% ");
584 use_list
->where
= gfc_current_locus
;
586 m
= gfc_match_name (name
);
593 use_list
->module_name
= gfc_get_string (name
);
595 if (gfc_match_eos () == MATCH_YES
)
598 if (gfc_match_char (',') != MATCH_YES
)
601 if (gfc_match (" only :") == MATCH_YES
)
602 use_list
->only_flag
= true;
604 if (gfc_match_eos () == MATCH_YES
)
609 /* Get a new rename struct and add it to the rename list. */
610 new_use
= gfc_get_use_rename ();
611 new_use
->where
= gfc_current_locus
;
614 if (use_list
->rename
== NULL
)
615 use_list
->rename
= new_use
;
617 tail
->next
= new_use
;
620 /* See what kind of interface we're dealing with. Assume it is
622 new_use
->op
= INTRINSIC_NONE
;
623 if (gfc_match_generic_spec (&type
, name
, &op
) == MATCH_ERROR
)
628 case INTERFACE_NAMELESS
:
629 gfc_error ("Missing generic specification in USE statement at %C");
632 case INTERFACE_USER_OP
:
633 case INTERFACE_GENERIC
:
634 m
= gfc_match (" =>");
636 if (type
== INTERFACE_USER_OP
&& m
== MATCH_YES
637 && (!gfc_notify_std(GFC_STD_F2003
, "Renaming "
638 "operators in USE statements at %C")))
641 if (type
== INTERFACE_USER_OP
)
642 new_use
->op
= INTRINSIC_USER
;
644 if (use_list
->only_flag
)
647 strcpy (new_use
->use_name
, name
);
650 strcpy (new_use
->local_name
, name
);
651 m
= gfc_match_generic_spec (&type2
, new_use
->use_name
, &op
);
656 if (m
== MATCH_ERROR
)
664 strcpy (new_use
->local_name
, name
);
666 m
= gfc_match_generic_spec (&type2
, new_use
->use_name
, &op
);
671 if (m
== MATCH_ERROR
)
675 if (strcmp (new_use
->use_name
, use_list
->module_name
) == 0
676 || strcmp (new_use
->local_name
, use_list
->module_name
) == 0)
678 gfc_error ("The name %qs at %C has already been used as "
679 "an external module name.", use_list
->module_name
);
684 case INTERFACE_INTRINSIC_OP
:
692 if (gfc_match_eos () == MATCH_YES
)
694 if (gfc_match_char (',') != MATCH_YES
)
701 gfc_use_list
*last
= module_list
;
704 last
->next
= use_list
;
707 module_list
= use_list
;
712 gfc_syntax_error (ST_USE
);
715 free_rename (use_list
->rename
);
721 /* Match a SUBMODULE statement.
723 According to F2008:11.2.3.2, "The submodule identifier is the
724 ordered pair whose first element is the ancestor module name and
725 whose second element is the submodule name. 'Submodule_name' is
726 used for the submodule filename and uses '@' as a separator, whilst
727 the name of the symbol for the module uses '.' as a a separator.
728 The reasons for these choices are:
729 (i) To follow another leading brand in the submodule filenames;
730 (ii) Since '.' is not particularly visible in the filenames; and
731 (iii) The linker does not permit '@' in mnemonics. */
734 gfc_match_submodule (void)
737 char name
[GFC_MAX_SYMBOL_LEN
+ 1];
738 gfc_use_list
*use_list
;
740 if (!gfc_notify_std (GFC_STD_F2008
, "SUBMODULE declaration at %C"))
743 gfc_new_block
= NULL
;
744 gcc_assert (module_list
== NULL
);
746 if (gfc_match_char ('(') != MATCH_YES
)
751 m
= gfc_match (" %n", name
);
755 use_list
= gfc_get_use_list ();
756 use_list
->where
= gfc_current_locus
;
760 gfc_use_list
*last
= module_list
;
763 last
->next
= use_list
;
764 use_list
->module_name
765 = gfc_get_string ("%s.%s", module_list
->module_name
, name
);
766 use_list
->submodule_name
767 = gfc_get_string ("%s@%s", module_list
->module_name
, name
);
771 module_list
= use_list
;
772 use_list
->module_name
= gfc_get_string (name
);
773 use_list
->submodule_name
= use_list
->module_name
;
776 if (gfc_match_char (')') == MATCH_YES
)
779 if (gfc_match_char (':') != MATCH_YES
)
783 m
= gfc_match (" %s%t", &gfc_new_block
);
787 submodule_name
= gfc_get_string ("%s@%s", module_list
->module_name
,
788 gfc_new_block
->name
);
790 gfc_new_block
->name
= gfc_get_string ("%s.%s",
791 module_list
->module_name
,
792 gfc_new_block
->name
);
794 if (!gfc_add_flavor (&gfc_new_block
->attr
, FL_MODULE
,
795 gfc_new_block
->name
, NULL
))
798 /* Just retain the ultimate .(s)mod file for reading, since it
799 contains all the information in its ancestors. */
800 use_list
= module_list
;
801 for (; module_list
->next
; use_list
= use_list
->next
)
803 module_list
= use_list
->next
;
810 gfc_error ("Syntax error in SUBMODULE statement at %C");
815 /* Given a name and a number, inst, return the inst name
816 under which to load this symbol. Returns NULL if this
817 symbol shouldn't be loaded. If inst is zero, returns
818 the number of instances of this name. If interface is
819 true, a user-defined operator is sought, otherwise only
820 non-operators are sought. */
823 find_use_name_n (const char *name
, int *inst
, bool interface
)
826 const char *low_name
= NULL
;
829 /* For derived types. */
830 if (name
[0] != (char) TOLOWER ((unsigned char) name
[0]))
831 low_name
= dt_lower_string (name
);
834 for (u
= gfc_rename_list
; u
; u
= u
->next
)
836 if ((!low_name
&& strcmp (u
->use_name
, name
) != 0)
837 || (low_name
&& strcmp (u
->use_name
, low_name
) != 0)
838 || (u
->op
== INTRINSIC_USER
&& !interface
)
839 || (u
->op
!= INTRINSIC_USER
&& interface
))
852 return only_flag
? NULL
: name
;
858 if (u
->local_name
[0] == '\0')
860 return dt_upper_string (u
->local_name
);
863 return (u
->local_name
[0] != '\0') ? u
->local_name
: name
;
867 /* Given a name, return the name under which to load this symbol.
868 Returns NULL if this symbol shouldn't be loaded. */
871 find_use_name (const char *name
, bool interface
)
874 return find_use_name_n (name
, &i
, interface
);
878 /* Given a real name, return the number of use names associated with it. */
881 number_use_names (const char *name
, bool interface
)
884 find_use_name_n (name
, &i
, interface
);
889 /* Try to find the operator in the current list. */
891 static gfc_use_rename
*
892 find_use_operator (gfc_intrinsic_op op
)
896 for (u
= gfc_rename_list
; u
; u
= u
->next
)
904 /*****************************************************************/
906 /* The next couple of subroutines maintain a tree used to avoid a
907 brute-force search for a combination of true name and module name.
908 While symtree names, the name that a particular symbol is known by
909 can changed with USE statements, we still have to keep track of the
910 true names to generate the correct reference, and also avoid
911 loading the same real symbol twice in a program unit.
913 When we start reading, the true name tree is built and maintained
914 as symbols are read. The tree is searched as we load new symbols
915 to see if it already exists someplace in the namespace. */
917 typedef struct true_name
919 BBT_HEADER (true_name
);
925 static true_name
*true_name_root
;
928 /* Compare two true_name structures. */
931 compare_true_names (void *_t1
, void *_t2
)
936 t1
= (true_name
*) _t1
;
937 t2
= (true_name
*) _t2
;
939 c
= ((t1
->sym
->module
> t2
->sym
->module
)
940 - (t1
->sym
->module
< t2
->sym
->module
));
944 return strcmp (t1
->name
, t2
->name
);
948 /* Given a true name, search the true name tree to see if it exists
949 within the main namespace. */
952 find_true_name (const char *name
, const char *module
)
958 t
.name
= gfc_get_string (name
);
960 sym
.module
= gfc_get_string (module
);
968 c
= compare_true_names ((void *) (&t
), (void *) p
);
972 p
= (c
< 0) ? p
->left
: p
->right
;
979 /* Given a gfc_symbol pointer that is not in the true name tree, add it. */
982 add_true_name (gfc_symbol
*sym
)
986 t
= XCNEW (true_name
);
988 if (sym
->attr
.flavor
== FL_DERIVED
)
989 t
->name
= dt_upper_string (sym
->name
);
993 gfc_insert_bbt (&true_name_root
, t
, compare_true_names
);
997 /* Recursive function to build the initial true name tree by
998 recursively traversing the current namespace. */
1001 build_tnt (gfc_symtree
*st
)
1007 build_tnt (st
->left
);
1008 build_tnt (st
->right
);
1010 if (st
->n
.sym
->attr
.flavor
== FL_DERIVED
)
1011 name
= dt_upper_string (st
->n
.sym
->name
);
1013 name
= st
->n
.sym
->name
;
1015 if (find_true_name (name
, st
->n
.sym
->module
) != NULL
)
1018 add_true_name (st
->n
.sym
);
1022 /* Initialize the true name tree with the current namespace. */
1025 init_true_name_tree (void)
1027 true_name_root
= NULL
;
1028 build_tnt (gfc_current_ns
->sym_root
);
1032 /* Recursively free a true name tree node. */
1035 free_true_name (true_name
*t
)
1039 free_true_name (t
->left
);
1040 free_true_name (t
->right
);
1046 /*****************************************************************/
1048 /* Module reading and writing. */
1050 /* The following are versions similar to the ones in scanner.c, but
1051 for dealing with compressed module files. */
1054 gzopen_included_file_1 (const char *name
, gfc_directorylist
*list
,
1055 bool module
, bool system
)
1058 gfc_directorylist
*p
;
1061 for (p
= list
; p
; p
= p
->next
)
1063 if (module
&& !p
->use_for_modules
)
1066 fullname
= (char *) alloca(strlen (p
->path
) + strlen (name
) + 1);
1067 strcpy (fullname
, p
->path
);
1068 strcat (fullname
, name
);
1070 f
= gzopen (fullname
, "r");
1073 if (gfc_cpp_makedep ())
1074 gfc_cpp_add_dep (fullname
, system
);
1084 gzopen_included_file (const char *name
, bool include_cwd
, bool module
)
1088 if (IS_ABSOLUTE_PATH (name
) || include_cwd
)
1090 f
= gzopen (name
, "r");
1091 if (f
&& gfc_cpp_makedep ())
1092 gfc_cpp_add_dep (name
, false);
1096 f
= gzopen_included_file_1 (name
, include_dirs
, module
, false);
1102 gzopen_intrinsic_module (const char* name
)
1106 if (IS_ABSOLUTE_PATH (name
))
1108 f
= gzopen (name
, "r");
1109 if (f
&& gfc_cpp_makedep ())
1110 gfc_cpp_add_dep (name
, true);
1114 f
= gzopen_included_file_1 (name
, intrinsic_modules_dirs
, true, true);
1122 ATOM_NAME
, ATOM_LPAREN
, ATOM_RPAREN
, ATOM_INTEGER
, ATOM_STRING
1125 static atom_type last_atom
;
1128 /* The name buffer must be at least as long as a symbol name. Right
1129 now it's not clear how we're going to store numeric constants--
1130 probably as a hexadecimal string, since this will allow the exact
1131 number to be preserved (this can't be done by a decimal
1132 representation). Worry about that later. TODO! */
1134 #define MAX_ATOM_SIZE 100
1136 static int atom_int
;
1137 static char *atom_string
, atom_name
[MAX_ATOM_SIZE
];
1140 /* Report problems with a module. Error reporting is not very
1141 elaborate, since this sorts of errors shouldn't really happen.
1142 This subroutine never returns. */
1144 static void bad_module (const char *) ATTRIBUTE_NORETURN
;
1147 bad_module (const char *msgid
)
1149 XDELETEVEC (module_content
);
1150 module_content
= NULL
;
1155 gfc_fatal_error ("Reading module %qs at line %d column %d: %s",
1156 module_name
, module_line
, module_column
, msgid
);
1159 gfc_fatal_error ("Writing module %qs at line %d column %d: %s",
1160 module_name
, module_line
, module_column
, msgid
);
1163 gfc_fatal_error ("Module %qs at line %d column %d: %s",
1164 module_name
, module_line
, module_column
, msgid
);
1170 /* Set the module's input pointer. */
1173 set_module_locus (module_locus
*m
)
1175 module_column
= m
->column
;
1176 module_line
= m
->line
;
1177 module_pos
= m
->pos
;
1181 /* Get the module's input pointer so that we can restore it later. */
1184 get_module_locus (module_locus
*m
)
1186 m
->column
= module_column
;
1187 m
->line
= module_line
;
1188 m
->pos
= module_pos
;
1192 /* Get the next character in the module, updating our reckoning of
1198 const char c
= module_content
[module_pos
++];
1200 bad_module ("Unexpected EOF");
1202 prev_module_line
= module_line
;
1203 prev_module_column
= module_column
;
1215 /* Unget a character while remembering the line and column. Works for
1216 a single character only. */
1219 module_unget_char (void)
1221 module_line
= prev_module_line
;
1222 module_column
= prev_module_column
;
1226 /* Parse a string constant. The delimiter is guaranteed to be a
1236 atom_string
= XNEWVEC (char, cursz
);
1244 int c2
= module_char ();
1247 module_unget_char ();
1255 atom_string
= XRESIZEVEC (char, atom_string
, cursz
);
1257 atom_string
[len
] = c
;
1261 atom_string
= XRESIZEVEC (char, atom_string
, len
+ 1);
1262 atom_string
[len
] = '\0'; /* C-style string for debug purposes. */
1266 /* Parse a small integer. */
1269 parse_integer (int c
)
1278 module_unget_char ();
1282 atom_int
= 10 * atom_int
+ c
- '0';
1283 if (atom_int
> 99999999)
1284 bad_module ("Integer overflow");
1306 if (!ISALNUM (c
) && c
!= '_' && c
!= '-')
1308 module_unget_char ();
1313 if (++len
> GFC_MAX_SYMBOL_LEN
)
1314 bad_module ("Name too long");
1322 /* Read the next atom in the module's input stream. */
1333 while (c
== ' ' || c
== '\r' || c
== '\n');
1358 return ATOM_INTEGER
;
1416 bad_module ("Bad name");
1423 /* Peek at the next atom on the input. */
1434 while (c
== ' ' || c
== '\r' || c
== '\n');
1439 module_unget_char ();
1443 module_unget_char ();
1447 module_unget_char ();
1460 module_unget_char ();
1461 return ATOM_INTEGER
;
1515 module_unget_char ();
1519 bad_module ("Bad name");
1524 /* Read the next atom from the input, requiring that it be a
1528 require_atom (atom_type type
)
1534 column
= module_column
;
1543 p
= _("Expected name");
1546 p
= _("Expected left parenthesis");
1549 p
= _("Expected right parenthesis");
1552 p
= _("Expected integer");
1555 p
= _("Expected string");
1558 gfc_internal_error ("require_atom(): bad atom type required");
1561 module_column
= column
;
1568 /* Given a pointer to an mstring array, require that the current input
1569 be one of the strings in the array. We return the enum value. */
1572 find_enum (const mstring
*m
)
1576 i
= gfc_string2code (m
, atom_name
);
1580 bad_module ("find_enum(): Enum not found");
1586 /* Read a string. The caller is responsible for freeing. */
1592 require_atom (ATOM_STRING
);
1599 /**************** Module output subroutines ***************************/
1601 /* Output a character to a module file. */
1604 write_char (char out
)
1606 if (gzputc (module_fp
, out
) == EOF
)
1607 gfc_fatal_error ("Error writing modules file: %s", xstrerror (errno
));
1619 /* Write an atom to a module. The line wrapping isn't perfect, but it
1620 should work most of the time. This isn't that big of a deal, since
1621 the file really isn't meant to be read by people anyway. */
1624 write_atom (atom_type atom
, const void *v
)
1628 /* Workaround -Wmaybe-uninitialized false positive during
1629 profiledbootstrap by initializing them. */
1637 p
= (const char *) v
;
1649 i
= *((const int *) v
);
1651 gfc_internal_error ("write_atom(): Writing negative integer");
1653 sprintf (buffer
, "%d", i
);
1658 gfc_internal_error ("write_atom(): Trying to write dab atom");
1662 if(p
== NULL
|| *p
== '\0')
1667 if (atom
!= ATOM_RPAREN
)
1669 if (module_column
+ len
> 72)
1674 if (last_atom
!= ATOM_LPAREN
&& module_column
!= 1)
1679 if (atom
== ATOM_STRING
)
1682 while (p
!= NULL
&& *p
)
1684 if (atom
== ATOM_STRING
&& *p
== '\'')
1689 if (atom
== ATOM_STRING
)
1697 /***************** Mid-level I/O subroutines *****************/
1699 /* These subroutines let their caller read or write atoms without
1700 caring about which of the two is actually happening. This lets a
1701 subroutine concentrate on the actual format of the data being
1704 static void mio_expr (gfc_expr
**);
1705 pointer_info
*mio_symbol_ref (gfc_symbol
**);
1706 pointer_info
*mio_interface_rest (gfc_interface
**);
1707 static void mio_symtree_ref (gfc_symtree
**);
1709 /* Read or write an enumerated value. On writing, we return the input
1710 value for the convenience of callers. We avoid using an integer
1711 pointer because enums are sometimes inside bitfields. */
1714 mio_name (int t
, const mstring
*m
)
1716 if (iomode
== IO_OUTPUT
)
1717 write_atom (ATOM_NAME
, gfc_code2string (m
, t
));
1720 require_atom (ATOM_NAME
);
1727 /* Specialization of mio_name. */
1729 #define DECL_MIO_NAME(TYPE) \
1730 static inline TYPE \
1731 MIO_NAME(TYPE) (TYPE t, const mstring *m) \
1733 return (TYPE) mio_name ((int) t, m); \
1735 #define MIO_NAME(TYPE) mio_name_##TYPE
1740 if (iomode
== IO_OUTPUT
)
1741 write_atom (ATOM_LPAREN
, NULL
);
1743 require_atom (ATOM_LPAREN
);
1750 if (iomode
== IO_OUTPUT
)
1751 write_atom (ATOM_RPAREN
, NULL
);
1753 require_atom (ATOM_RPAREN
);
1758 mio_integer (int *ip
)
1760 if (iomode
== IO_OUTPUT
)
1761 write_atom (ATOM_INTEGER
, ip
);
1764 require_atom (ATOM_INTEGER
);
1770 /* Read or write a gfc_intrinsic_op value. */
1773 mio_intrinsic_op (gfc_intrinsic_op
* op
)
1775 /* FIXME: Would be nicer to do this via the operators symbolic name. */
1776 if (iomode
== IO_OUTPUT
)
1778 int converted
= (int) *op
;
1779 write_atom (ATOM_INTEGER
, &converted
);
1783 require_atom (ATOM_INTEGER
);
1784 *op
= (gfc_intrinsic_op
) atom_int
;
1789 /* Read or write a character pointer that points to a string on the heap. */
1792 mio_allocated_string (const char *s
)
1794 if (iomode
== IO_OUTPUT
)
1796 write_atom (ATOM_STRING
, s
);
1801 require_atom (ATOM_STRING
);
1807 /* Functions for quoting and unquoting strings. */
1810 quote_string (const gfc_char_t
*s
, const size_t slength
)
1812 const gfc_char_t
*p
;
1816 /* Calculate the length we'll need: a backslash takes two ("\\"),
1817 non-printable characters take 10 ("\Uxxxxxxxx") and others take 1. */
1818 for (p
= s
, i
= 0; i
< slength
; p
++, i
++)
1822 else if (!gfc_wide_is_printable (*p
))
1828 q
= res
= XCNEWVEC (char, len
+ 1);
1829 for (p
= s
, i
= 0; i
< slength
; p
++, i
++)
1832 *q
++ = '\\', *q
++ = '\\';
1833 else if (!gfc_wide_is_printable (*p
))
1835 sprintf (q
, "\\U%08" HOST_WIDE_INT_PRINT
"x",
1836 (unsigned HOST_WIDE_INT
) *p
);
1840 *q
++ = (unsigned char) *p
;
1848 unquote_string (const char *s
)
1854 for (p
= s
, len
= 0; *p
; p
++, len
++)
1861 else if (p
[1] == 'U')
1862 p
+= 9; /* That is a "\U????????". */
1864 gfc_internal_error ("unquote_string(): got bad string");
1867 res
= gfc_get_wide_string (len
+ 1);
1868 for (i
= 0, p
= s
; i
< len
; i
++, p
++)
1873 res
[i
] = (unsigned char) *p
;
1874 else if (p
[1] == '\\')
1876 res
[i
] = (unsigned char) '\\';
1881 /* We read the 8-digits hexadecimal constant that follows. */
1886 gcc_assert (p
[1] == 'U');
1887 for (j
= 0; j
< 8; j
++)
1890 gcc_assert (sscanf (&p
[j
+2], "%01x", &n
) == 1);
1904 /* Read or write a character pointer that points to a wide string on the
1905 heap, performing quoting/unquoting of nonprintable characters using the
1906 form \U???????? (where each ? is a hexadecimal digit).
1907 Length is the length of the string, only known and used in output mode. */
1909 static const gfc_char_t
*
1910 mio_allocated_wide_string (const gfc_char_t
*s
, const size_t length
)
1912 if (iomode
== IO_OUTPUT
)
1914 char *quoted
= quote_string (s
, length
);
1915 write_atom (ATOM_STRING
, quoted
);
1921 gfc_char_t
*unquoted
;
1923 require_atom (ATOM_STRING
);
1924 unquoted
= unquote_string (atom_string
);
1931 /* Read or write a string that is in static memory. */
1934 mio_pool_string (const char **stringp
)
1936 /* TODO: one could write the string only once, and refer to it via a
1939 /* As a special case we have to deal with a NULL string. This
1940 happens for the 'module' member of 'gfc_symbol's that are not in a
1941 module. We read / write these as the empty string. */
1942 if (iomode
== IO_OUTPUT
)
1944 const char *p
= *stringp
== NULL
? "" : *stringp
;
1945 write_atom (ATOM_STRING
, p
);
1949 require_atom (ATOM_STRING
);
1950 *stringp
= atom_string
[0] == '\0' ? NULL
: gfc_get_string (atom_string
);
1956 /* Read or write a string that is inside of some already-allocated
1960 mio_internal_string (char *string
)
1962 if (iomode
== IO_OUTPUT
)
1963 write_atom (ATOM_STRING
, string
);
1966 require_atom (ATOM_STRING
);
1967 strcpy (string
, atom_string
);
1974 { AB_ALLOCATABLE
, AB_DIMENSION
, AB_EXTERNAL
, AB_INTRINSIC
, AB_OPTIONAL
,
1975 AB_POINTER
, AB_TARGET
, AB_DUMMY
, AB_RESULT
, AB_DATA
,
1976 AB_IN_NAMELIST
, AB_IN_COMMON
, AB_FUNCTION
, AB_SUBROUTINE
, AB_SEQUENCE
,
1977 AB_ELEMENTAL
, AB_PURE
, AB_RECURSIVE
, AB_GENERIC
, AB_ALWAYS_EXPLICIT
,
1978 AB_CRAY_POINTER
, AB_CRAY_POINTEE
, AB_THREADPRIVATE
,
1979 AB_ALLOC_COMP
, AB_POINTER_COMP
, AB_PROC_POINTER_COMP
, AB_PRIVATE_COMP
,
1980 AB_VALUE
, AB_VOLATILE
, AB_PROTECTED
, AB_LOCK_COMP
,
1981 AB_IS_BIND_C
, AB_IS_C_INTEROP
, AB_IS_ISO_C
, AB_ABSTRACT
, AB_ZERO_COMP
,
1982 AB_IS_CLASS
, AB_PROCEDURE
, AB_PROC_POINTER
, AB_ASYNCHRONOUS
, AB_CODIMENSION
,
1983 AB_COARRAY_COMP
, AB_VTYPE
, AB_VTAB
, AB_CONTIGUOUS
, AB_CLASS_POINTER
,
1984 AB_IMPLICIT_PURE
, AB_ARTIFICIAL
, AB_UNLIMITED_POLY
, AB_OMP_DECLARE_TARGET
,
1985 AB_ARRAY_OUTER_DEPENDENCY
, AB_MODULE_PROCEDURE
1988 static const mstring attr_bits
[] =
1990 minit ("ALLOCATABLE", AB_ALLOCATABLE
),
1991 minit ("ARTIFICIAL", AB_ARTIFICIAL
),
1992 minit ("ASYNCHRONOUS", AB_ASYNCHRONOUS
),
1993 minit ("DIMENSION", AB_DIMENSION
),
1994 minit ("CODIMENSION", AB_CODIMENSION
),
1995 minit ("CONTIGUOUS", AB_CONTIGUOUS
),
1996 minit ("EXTERNAL", AB_EXTERNAL
),
1997 minit ("INTRINSIC", AB_INTRINSIC
),
1998 minit ("OPTIONAL", AB_OPTIONAL
),
1999 minit ("POINTER", AB_POINTER
),
2000 minit ("VOLATILE", AB_VOLATILE
),
2001 minit ("TARGET", AB_TARGET
),
2002 minit ("THREADPRIVATE", AB_THREADPRIVATE
),
2003 minit ("DUMMY", AB_DUMMY
),
2004 minit ("RESULT", AB_RESULT
),
2005 minit ("DATA", AB_DATA
),
2006 minit ("IN_NAMELIST", AB_IN_NAMELIST
),
2007 minit ("IN_COMMON", AB_IN_COMMON
),
2008 minit ("FUNCTION", AB_FUNCTION
),
2009 minit ("SUBROUTINE", AB_SUBROUTINE
),
2010 minit ("SEQUENCE", AB_SEQUENCE
),
2011 minit ("ELEMENTAL", AB_ELEMENTAL
),
2012 minit ("PURE", AB_PURE
),
2013 minit ("RECURSIVE", AB_RECURSIVE
),
2014 minit ("GENERIC", AB_GENERIC
),
2015 minit ("ALWAYS_EXPLICIT", AB_ALWAYS_EXPLICIT
),
2016 minit ("CRAY_POINTER", AB_CRAY_POINTER
),
2017 minit ("CRAY_POINTEE", AB_CRAY_POINTEE
),
2018 minit ("IS_BIND_C", AB_IS_BIND_C
),
2019 minit ("IS_C_INTEROP", AB_IS_C_INTEROP
),
2020 minit ("IS_ISO_C", AB_IS_ISO_C
),
2021 minit ("VALUE", AB_VALUE
),
2022 minit ("ALLOC_COMP", AB_ALLOC_COMP
),
2023 minit ("COARRAY_COMP", AB_COARRAY_COMP
),
2024 minit ("LOCK_COMP", AB_LOCK_COMP
),
2025 minit ("POINTER_COMP", AB_POINTER_COMP
),
2026 minit ("PROC_POINTER_COMP", AB_PROC_POINTER_COMP
),
2027 minit ("PRIVATE_COMP", AB_PRIVATE_COMP
),
2028 minit ("ZERO_COMP", AB_ZERO_COMP
),
2029 minit ("PROTECTED", AB_PROTECTED
),
2030 minit ("ABSTRACT", AB_ABSTRACT
),
2031 minit ("IS_CLASS", AB_IS_CLASS
),
2032 minit ("PROCEDURE", AB_PROCEDURE
),
2033 minit ("PROC_POINTER", AB_PROC_POINTER
),
2034 minit ("VTYPE", AB_VTYPE
),
2035 minit ("VTAB", AB_VTAB
),
2036 minit ("CLASS_POINTER", AB_CLASS_POINTER
),
2037 minit ("IMPLICIT_PURE", AB_IMPLICIT_PURE
),
2038 minit ("UNLIMITED_POLY", AB_UNLIMITED_POLY
),
2039 minit ("OMP_DECLARE_TARGET", AB_OMP_DECLARE_TARGET
),
2040 minit ("ARRAY_OUTER_DEPENDENCY", AB_ARRAY_OUTER_DEPENDENCY
),
2041 minit ("MODULE_PROCEDURE", AB_MODULE_PROCEDURE
),
2045 /* For binding attributes. */
2046 static const mstring binding_passing
[] =
2049 minit ("NOPASS", 1),
2052 static const mstring binding_overriding
[] =
2054 minit ("OVERRIDABLE", 0),
2055 minit ("NON_OVERRIDABLE", 1),
2056 minit ("DEFERRED", 2),
2059 static const mstring binding_generic
[] =
2061 minit ("SPECIFIC", 0),
2062 minit ("GENERIC", 1),
2065 static const mstring binding_ppc
[] =
2067 minit ("NO_PPC", 0),
2072 /* Specialization of mio_name. */
2073 DECL_MIO_NAME (ab_attribute
)
2074 DECL_MIO_NAME (ar_type
)
2075 DECL_MIO_NAME (array_type
)
2077 DECL_MIO_NAME (expr_t
)
2078 DECL_MIO_NAME (gfc_access
)
2079 DECL_MIO_NAME (gfc_intrinsic_op
)
2080 DECL_MIO_NAME (ifsrc
)
2081 DECL_MIO_NAME (save_state
)
2082 DECL_MIO_NAME (procedure_type
)
2083 DECL_MIO_NAME (ref_type
)
2084 DECL_MIO_NAME (sym_flavor
)
2085 DECL_MIO_NAME (sym_intent
)
2086 #undef DECL_MIO_NAME
2088 /* Symbol attributes are stored in list with the first three elements
2089 being the enumerated fields, while the remaining elements (if any)
2090 indicate the individual attribute bits. The access field is not
2091 saved-- it controls what symbols are exported when a module is
2095 mio_symbol_attribute (symbol_attribute
*attr
)
2098 unsigned ext_attr
,extension_level
;
2102 attr
->flavor
= MIO_NAME (sym_flavor
) (attr
->flavor
, flavors
);
2103 attr
->intent
= MIO_NAME (sym_intent
) (attr
->intent
, intents
);
2104 attr
->proc
= MIO_NAME (procedure_type
) (attr
->proc
, procedures
);
2105 attr
->if_source
= MIO_NAME (ifsrc
) (attr
->if_source
, ifsrc_types
);
2106 attr
->save
= MIO_NAME (save_state
) (attr
->save
, save_status
);
2108 ext_attr
= attr
->ext_attr
;
2109 mio_integer ((int *) &ext_attr
);
2110 attr
->ext_attr
= ext_attr
;
2112 extension_level
= attr
->extension
;
2113 mio_integer ((int *) &extension_level
);
2114 attr
->extension
= extension_level
;
2116 if (iomode
== IO_OUTPUT
)
2118 if (attr
->allocatable
)
2119 MIO_NAME (ab_attribute
) (AB_ALLOCATABLE
, attr_bits
);
2120 if (attr
->artificial
)
2121 MIO_NAME (ab_attribute
) (AB_ARTIFICIAL
, attr_bits
);
2122 if (attr
->asynchronous
)
2123 MIO_NAME (ab_attribute
) (AB_ASYNCHRONOUS
, attr_bits
);
2124 if (attr
->dimension
)
2125 MIO_NAME (ab_attribute
) (AB_DIMENSION
, attr_bits
);
2126 if (attr
->codimension
)
2127 MIO_NAME (ab_attribute
) (AB_CODIMENSION
, attr_bits
);
2128 if (attr
->contiguous
)
2129 MIO_NAME (ab_attribute
) (AB_CONTIGUOUS
, attr_bits
);
2131 MIO_NAME (ab_attribute
) (AB_EXTERNAL
, attr_bits
);
2132 if (attr
->intrinsic
)
2133 MIO_NAME (ab_attribute
) (AB_INTRINSIC
, attr_bits
);
2135 MIO_NAME (ab_attribute
) (AB_OPTIONAL
, attr_bits
);
2137 MIO_NAME (ab_attribute
) (AB_POINTER
, attr_bits
);
2138 if (attr
->class_pointer
)
2139 MIO_NAME (ab_attribute
) (AB_CLASS_POINTER
, attr_bits
);
2140 if (attr
->is_protected
)
2141 MIO_NAME (ab_attribute
) (AB_PROTECTED
, attr_bits
);
2143 MIO_NAME (ab_attribute
) (AB_VALUE
, attr_bits
);
2144 if (attr
->volatile_
)
2145 MIO_NAME (ab_attribute
) (AB_VOLATILE
, attr_bits
);
2147 MIO_NAME (ab_attribute
) (AB_TARGET
, attr_bits
);
2148 if (attr
->threadprivate
)
2149 MIO_NAME (ab_attribute
) (AB_THREADPRIVATE
, attr_bits
);
2151 MIO_NAME (ab_attribute
) (AB_DUMMY
, attr_bits
);
2153 MIO_NAME (ab_attribute
) (AB_RESULT
, attr_bits
);
2154 /* We deliberately don't preserve the "entry" flag. */
2157 MIO_NAME (ab_attribute
) (AB_DATA
, attr_bits
);
2158 if (attr
->in_namelist
)
2159 MIO_NAME (ab_attribute
) (AB_IN_NAMELIST
, attr_bits
);
2160 if (attr
->in_common
)
2161 MIO_NAME (ab_attribute
) (AB_IN_COMMON
, attr_bits
);
2164 MIO_NAME (ab_attribute
) (AB_FUNCTION
, attr_bits
);
2165 if (attr
->subroutine
)
2166 MIO_NAME (ab_attribute
) (AB_SUBROUTINE
, attr_bits
);
2168 MIO_NAME (ab_attribute
) (AB_GENERIC
, attr_bits
);
2170 MIO_NAME (ab_attribute
) (AB_ABSTRACT
, attr_bits
);
2173 MIO_NAME (ab_attribute
) (AB_SEQUENCE
, attr_bits
);
2174 if (attr
->elemental
)
2175 MIO_NAME (ab_attribute
) (AB_ELEMENTAL
, attr_bits
);
2177 MIO_NAME (ab_attribute
) (AB_PURE
, attr_bits
);
2178 if (attr
->implicit_pure
)
2179 MIO_NAME (ab_attribute
) (AB_IMPLICIT_PURE
, attr_bits
);
2180 if (attr
->unlimited_polymorphic
)
2181 MIO_NAME (ab_attribute
) (AB_UNLIMITED_POLY
, attr_bits
);
2182 if (attr
->recursive
)
2183 MIO_NAME (ab_attribute
) (AB_RECURSIVE
, attr_bits
);
2184 if (attr
->always_explicit
)
2185 MIO_NAME (ab_attribute
) (AB_ALWAYS_EXPLICIT
, attr_bits
);
2186 if (attr
->cray_pointer
)
2187 MIO_NAME (ab_attribute
) (AB_CRAY_POINTER
, attr_bits
);
2188 if (attr
->cray_pointee
)
2189 MIO_NAME (ab_attribute
) (AB_CRAY_POINTEE
, attr_bits
);
2190 if (attr
->is_bind_c
)
2191 MIO_NAME(ab_attribute
) (AB_IS_BIND_C
, attr_bits
);
2192 if (attr
->is_c_interop
)
2193 MIO_NAME(ab_attribute
) (AB_IS_C_INTEROP
, attr_bits
);
2195 MIO_NAME(ab_attribute
) (AB_IS_ISO_C
, attr_bits
);
2196 if (attr
->alloc_comp
)
2197 MIO_NAME (ab_attribute
) (AB_ALLOC_COMP
, attr_bits
);
2198 if (attr
->pointer_comp
)
2199 MIO_NAME (ab_attribute
) (AB_POINTER_COMP
, attr_bits
);
2200 if (attr
->proc_pointer_comp
)
2201 MIO_NAME (ab_attribute
) (AB_PROC_POINTER_COMP
, attr_bits
);
2202 if (attr
->private_comp
)
2203 MIO_NAME (ab_attribute
) (AB_PRIVATE_COMP
, attr_bits
);
2204 if (attr
->coarray_comp
)
2205 MIO_NAME (ab_attribute
) (AB_COARRAY_COMP
, attr_bits
);
2206 if (attr
->lock_comp
)
2207 MIO_NAME (ab_attribute
) (AB_LOCK_COMP
, attr_bits
);
2208 if (attr
->zero_comp
)
2209 MIO_NAME (ab_attribute
) (AB_ZERO_COMP
, attr_bits
);
2211 MIO_NAME (ab_attribute
) (AB_IS_CLASS
, attr_bits
);
2212 if (attr
->procedure
)
2213 MIO_NAME (ab_attribute
) (AB_PROCEDURE
, attr_bits
);
2214 if (attr
->proc_pointer
)
2215 MIO_NAME (ab_attribute
) (AB_PROC_POINTER
, attr_bits
);
2217 MIO_NAME (ab_attribute
) (AB_VTYPE
, attr_bits
);
2219 MIO_NAME (ab_attribute
) (AB_VTAB
, attr_bits
);
2220 if (attr
->omp_declare_target
)
2221 MIO_NAME (ab_attribute
) (AB_OMP_DECLARE_TARGET
, attr_bits
);
2222 if (attr
->array_outer_dependency
)
2223 MIO_NAME (ab_attribute
) (AB_ARRAY_OUTER_DEPENDENCY
, attr_bits
);
2224 if (attr
->module_procedure
)
2225 MIO_NAME (ab_attribute
) (AB_MODULE_PROCEDURE
, attr_bits
);
2235 if (t
== ATOM_RPAREN
)
2238 bad_module ("Expected attribute bit name");
2240 switch ((ab_attribute
) find_enum (attr_bits
))
2242 case AB_ALLOCATABLE
:
2243 attr
->allocatable
= 1;
2246 attr
->artificial
= 1;
2248 case AB_ASYNCHRONOUS
:
2249 attr
->asynchronous
= 1;
2252 attr
->dimension
= 1;
2254 case AB_CODIMENSION
:
2255 attr
->codimension
= 1;
2258 attr
->contiguous
= 1;
2264 attr
->intrinsic
= 1;
2272 case AB_CLASS_POINTER
:
2273 attr
->class_pointer
= 1;
2276 attr
->is_protected
= 1;
2282 attr
->volatile_
= 1;
2287 case AB_THREADPRIVATE
:
2288 attr
->threadprivate
= 1;
2299 case AB_IN_NAMELIST
:
2300 attr
->in_namelist
= 1;
2303 attr
->in_common
= 1;
2309 attr
->subroutine
= 1;
2321 attr
->elemental
= 1;
2326 case AB_IMPLICIT_PURE
:
2327 attr
->implicit_pure
= 1;
2329 case AB_UNLIMITED_POLY
:
2330 attr
->unlimited_polymorphic
= 1;
2333 attr
->recursive
= 1;
2335 case AB_ALWAYS_EXPLICIT
:
2336 attr
->always_explicit
= 1;
2338 case AB_CRAY_POINTER
:
2339 attr
->cray_pointer
= 1;
2341 case AB_CRAY_POINTEE
:
2342 attr
->cray_pointee
= 1;
2345 attr
->is_bind_c
= 1;
2347 case AB_IS_C_INTEROP
:
2348 attr
->is_c_interop
= 1;
2354 attr
->alloc_comp
= 1;
2356 case AB_COARRAY_COMP
:
2357 attr
->coarray_comp
= 1;
2360 attr
->lock_comp
= 1;
2362 case AB_POINTER_COMP
:
2363 attr
->pointer_comp
= 1;
2365 case AB_PROC_POINTER_COMP
:
2366 attr
->proc_pointer_comp
= 1;
2368 case AB_PRIVATE_COMP
:
2369 attr
->private_comp
= 1;
2372 attr
->zero_comp
= 1;
2378 attr
->procedure
= 1;
2380 case AB_PROC_POINTER
:
2381 attr
->proc_pointer
= 1;
2389 case AB_OMP_DECLARE_TARGET
:
2390 attr
->omp_declare_target
= 1;
2392 case AB_ARRAY_OUTER_DEPENDENCY
:
2393 attr
->array_outer_dependency
=1;
2395 case AB_MODULE_PROCEDURE
:
2396 attr
->module_procedure
=1;
2404 static const mstring bt_types
[] = {
2405 minit ("INTEGER", BT_INTEGER
),
2406 minit ("REAL", BT_REAL
),
2407 minit ("COMPLEX", BT_COMPLEX
),
2408 minit ("LOGICAL", BT_LOGICAL
),
2409 minit ("CHARACTER", BT_CHARACTER
),
2410 minit ("DERIVED", BT_DERIVED
),
2411 minit ("CLASS", BT_CLASS
),
2412 minit ("PROCEDURE", BT_PROCEDURE
),
2413 minit ("UNKNOWN", BT_UNKNOWN
),
2414 minit ("VOID", BT_VOID
),
2415 minit ("ASSUMED", BT_ASSUMED
),
2421 mio_charlen (gfc_charlen
**clp
)
2427 if (iomode
== IO_OUTPUT
)
2431 mio_expr (&cl
->length
);
2435 if (peek_atom () != ATOM_RPAREN
)
2437 cl
= gfc_new_charlen (gfc_current_ns
, NULL
);
2438 mio_expr (&cl
->length
);
2447 /* See if a name is a generated name. */
2450 check_unique_name (const char *name
)
2452 return *name
== '@';
2457 mio_typespec (gfc_typespec
*ts
)
2461 ts
->type
= MIO_NAME (bt
) (ts
->type
, bt_types
);
2463 if (ts
->type
!= BT_DERIVED
&& ts
->type
!= BT_CLASS
)
2464 mio_integer (&ts
->kind
);
2466 mio_symbol_ref (&ts
->u
.derived
);
2468 mio_symbol_ref (&ts
->interface
);
2470 /* Add info for C interop and is_iso_c. */
2471 mio_integer (&ts
->is_c_interop
);
2472 mio_integer (&ts
->is_iso_c
);
2474 /* If the typespec is for an identifier either from iso_c_binding, or
2475 a constant that was initialized to an identifier from it, use the
2476 f90_type. Otherwise, use the ts->type, since it shouldn't matter. */
2478 ts
->f90_type
= MIO_NAME (bt
) (ts
->f90_type
, bt_types
);
2480 ts
->f90_type
= MIO_NAME (bt
) (ts
->type
, bt_types
);
2482 if (ts
->type
!= BT_CHARACTER
)
2484 /* ts->u.cl is only valid for BT_CHARACTER. */
2489 mio_charlen (&ts
->u
.cl
);
2491 /* So as not to disturb the existing API, use an ATOM_NAME to
2492 transmit deferred characteristic for characters (F2003). */
2493 if (iomode
== IO_OUTPUT
)
2495 if (ts
->type
== BT_CHARACTER
&& ts
->deferred
)
2496 write_atom (ATOM_NAME
, "DEFERRED_CL");
2498 else if (peek_atom () != ATOM_RPAREN
)
2500 if (parse_atom () != ATOM_NAME
)
2501 bad_module ("Expected string");
2509 static const mstring array_spec_types
[] = {
2510 minit ("EXPLICIT", AS_EXPLICIT
),
2511 minit ("ASSUMED_RANK", AS_ASSUMED_RANK
),
2512 minit ("ASSUMED_SHAPE", AS_ASSUMED_SHAPE
),
2513 minit ("DEFERRED", AS_DEFERRED
),
2514 minit ("ASSUMED_SIZE", AS_ASSUMED_SIZE
),
2520 mio_array_spec (gfc_array_spec
**asp
)
2527 if (iomode
== IO_OUTPUT
)
2535 /* mio_integer expects nonnegative values. */
2536 rank
= as
->rank
> 0 ? as
->rank
: 0;
2537 mio_integer (&rank
);
2541 if (peek_atom () == ATOM_RPAREN
)
2547 *asp
= as
= gfc_get_array_spec ();
2548 mio_integer (&as
->rank
);
2551 mio_integer (&as
->corank
);
2552 as
->type
= MIO_NAME (array_type
) (as
->type
, array_spec_types
);
2554 if (iomode
== IO_INPUT
&& as
->type
== AS_ASSUMED_RANK
)
2556 if (iomode
== IO_INPUT
&& as
->corank
)
2557 as
->cotype
= (as
->type
== AS_DEFERRED
) ? AS_DEFERRED
: AS_EXPLICIT
;
2559 if (as
->rank
+ as
->corank
> 0)
2560 for (i
= 0; i
< as
->rank
+ as
->corank
; i
++)
2562 mio_expr (&as
->lower
[i
]);
2563 mio_expr (&as
->upper
[i
]);
2571 /* Given a pointer to an array reference structure (which lives in a
2572 gfc_ref structure), find the corresponding array specification
2573 structure. Storing the pointer in the ref structure doesn't quite
2574 work when loading from a module. Generating code for an array
2575 reference also needs more information than just the array spec. */
2577 static const mstring array_ref_types
[] = {
2578 minit ("FULL", AR_FULL
),
2579 minit ("ELEMENT", AR_ELEMENT
),
2580 minit ("SECTION", AR_SECTION
),
2586 mio_array_ref (gfc_array_ref
*ar
)
2591 ar
->type
= MIO_NAME (ar_type
) (ar
->type
, array_ref_types
);
2592 mio_integer (&ar
->dimen
);
2600 for (i
= 0; i
< ar
->dimen
; i
++)
2601 mio_expr (&ar
->start
[i
]);
2606 for (i
= 0; i
< ar
->dimen
; i
++)
2608 mio_expr (&ar
->start
[i
]);
2609 mio_expr (&ar
->end
[i
]);
2610 mio_expr (&ar
->stride
[i
]);
2616 gfc_internal_error ("mio_array_ref(): Unknown array ref");
2619 /* Unfortunately, ar->dimen_type is an anonymous enumerated type so
2620 we can't call mio_integer directly. Instead loop over each element
2621 and cast it to/from an integer. */
2622 if (iomode
== IO_OUTPUT
)
2624 for (i
= 0; i
< ar
->dimen
; i
++)
2626 int tmp
= (int)ar
->dimen_type
[i
];
2627 write_atom (ATOM_INTEGER
, &tmp
);
2632 for (i
= 0; i
< ar
->dimen
; i
++)
2634 require_atom (ATOM_INTEGER
);
2635 ar
->dimen_type
[i
] = (enum gfc_array_ref_dimen_type
) atom_int
;
2639 if (iomode
== IO_INPUT
)
2641 ar
->where
= gfc_current_locus
;
2643 for (i
= 0; i
< ar
->dimen
; i
++)
2644 ar
->c_where
[i
] = gfc_current_locus
;
2651 /* Saves or restores a pointer. The pointer is converted back and
2652 forth from an integer. We return the pointer_info pointer so that
2653 the caller can take additional action based on the pointer type. */
2655 static pointer_info
*
2656 mio_pointer_ref (void *gp
)
2660 if (iomode
== IO_OUTPUT
)
2662 p
= get_pointer (*((char **) gp
));
2663 write_atom (ATOM_INTEGER
, &p
->integer
);
2667 require_atom (ATOM_INTEGER
);
2668 p
= add_fixup (atom_int
, gp
);
2675 /* Save and load references to components that occur within
2676 expressions. We have to describe these references by a number and
2677 by name. The number is necessary for forward references during
2678 reading, and the name is necessary if the symbol already exists in
2679 the namespace and is not loaded again. */
2682 mio_component_ref (gfc_component
**cp
)
2686 p
= mio_pointer_ref (cp
);
2687 if (p
->type
== P_UNKNOWN
)
2688 p
->type
= P_COMPONENT
;
2692 static void mio_namespace_ref (gfc_namespace
**nsp
);
2693 static void mio_formal_arglist (gfc_formal_arglist
**formal
);
2694 static void mio_typebound_proc (gfc_typebound_proc
** proc
);
2697 mio_component (gfc_component
*c
, int vtype
)
2704 if (iomode
== IO_OUTPUT
)
2706 p
= get_pointer (c
);
2707 mio_integer (&p
->integer
);
2712 p
= get_integer (n
);
2713 associate_integer_pointer (p
, c
);
2716 if (p
->type
== P_UNKNOWN
)
2717 p
->type
= P_COMPONENT
;
2719 mio_pool_string (&c
->name
);
2720 mio_typespec (&c
->ts
);
2721 mio_array_spec (&c
->as
);
2723 mio_symbol_attribute (&c
->attr
);
2724 if (c
->ts
.type
== BT_CLASS
)
2725 c
->attr
.class_ok
= 1;
2726 c
->attr
.access
= MIO_NAME (gfc_access
) (c
->attr
.access
, access_types
);
2728 if (!vtype
|| strcmp (c
->name
, "_final") == 0
2729 || strcmp (c
->name
, "_hash") == 0)
2730 mio_expr (&c
->initializer
);
2732 if (c
->attr
.proc_pointer
)
2733 mio_typebound_proc (&c
->tb
);
2740 mio_component_list (gfc_component
**cp
, int vtype
)
2742 gfc_component
*c
, *tail
;
2746 if (iomode
== IO_OUTPUT
)
2748 for (c
= *cp
; c
; c
= c
->next
)
2749 mio_component (c
, vtype
);
2758 if (peek_atom () == ATOM_RPAREN
)
2761 c
= gfc_get_component ();
2762 mio_component (c
, vtype
);
2778 mio_actual_arg (gfc_actual_arglist
*a
)
2781 mio_pool_string (&a
->name
);
2782 mio_expr (&a
->expr
);
2788 mio_actual_arglist (gfc_actual_arglist
**ap
)
2790 gfc_actual_arglist
*a
, *tail
;
2794 if (iomode
== IO_OUTPUT
)
2796 for (a
= *ap
; a
; a
= a
->next
)
2806 if (peek_atom () != ATOM_LPAREN
)
2809 a
= gfc_get_actual_arglist ();
2825 /* Read and write formal argument lists. */
2828 mio_formal_arglist (gfc_formal_arglist
**formal
)
2830 gfc_formal_arglist
*f
, *tail
;
2834 if (iomode
== IO_OUTPUT
)
2836 for (f
= *formal
; f
; f
= f
->next
)
2837 mio_symbol_ref (&f
->sym
);
2841 *formal
= tail
= NULL
;
2843 while (peek_atom () != ATOM_RPAREN
)
2845 f
= gfc_get_formal_arglist ();
2846 mio_symbol_ref (&f
->sym
);
2848 if (*formal
== NULL
)
2861 /* Save or restore a reference to a symbol node. */
2864 mio_symbol_ref (gfc_symbol
**symp
)
2868 p
= mio_pointer_ref (symp
);
2869 if (p
->type
== P_UNKNOWN
)
2872 if (iomode
== IO_OUTPUT
)
2874 if (p
->u
.wsym
.state
== UNREFERENCED
)
2875 p
->u
.wsym
.state
= NEEDS_WRITE
;
2879 if (p
->u
.rsym
.state
== UNUSED
)
2880 p
->u
.rsym
.state
= NEEDED
;
2886 /* Save or restore a reference to a symtree node. */
2889 mio_symtree_ref (gfc_symtree
**stp
)
2894 if (iomode
== IO_OUTPUT
)
2895 mio_symbol_ref (&(*stp
)->n
.sym
);
2898 require_atom (ATOM_INTEGER
);
2899 p
= get_integer (atom_int
);
2901 /* An unused equivalence member; make a symbol and a symtree
2903 if (in_load_equiv
&& p
->u
.rsym
.symtree
== NULL
)
2905 /* Since this is not used, it must have a unique name. */
2906 p
->u
.rsym
.symtree
= gfc_get_unique_symtree (gfc_current_ns
);
2908 /* Make the symbol. */
2909 if (p
->u
.rsym
.sym
== NULL
)
2911 p
->u
.rsym
.sym
= gfc_new_symbol (p
->u
.rsym
.true_name
,
2913 p
->u
.rsym
.sym
->module
= gfc_get_string (p
->u
.rsym
.module
);
2916 p
->u
.rsym
.symtree
->n
.sym
= p
->u
.rsym
.sym
;
2917 p
->u
.rsym
.symtree
->n
.sym
->refs
++;
2918 p
->u
.rsym
.referenced
= 1;
2920 /* If the symbol is PRIVATE and in COMMON, load_commons will
2921 generate a fixup symbol, which must be associated. */
2923 resolve_fixups (p
->fixup
, p
->u
.rsym
.sym
);
2927 if (p
->type
== P_UNKNOWN
)
2930 if (p
->u
.rsym
.state
== UNUSED
)
2931 p
->u
.rsym
.state
= NEEDED
;
2933 if (p
->u
.rsym
.symtree
!= NULL
)
2935 *stp
= p
->u
.rsym
.symtree
;
2939 f
= XCNEW (fixup_t
);
2941 f
->next
= p
->u
.rsym
.stfixup
;
2942 p
->u
.rsym
.stfixup
= f
;
2944 f
->pointer
= (void **) stp
;
2951 mio_iterator (gfc_iterator
**ip
)
2957 if (iomode
== IO_OUTPUT
)
2964 if (peek_atom () == ATOM_RPAREN
)
2970 *ip
= gfc_get_iterator ();
2975 mio_expr (&iter
->var
);
2976 mio_expr (&iter
->start
);
2977 mio_expr (&iter
->end
);
2978 mio_expr (&iter
->step
);
2986 mio_constructor (gfc_constructor_base
*cp
)
2992 if (iomode
== IO_OUTPUT
)
2994 for (c
= gfc_constructor_first (*cp
); c
; c
= gfc_constructor_next (c
))
2997 mio_expr (&c
->expr
);
2998 mio_iterator (&c
->iterator
);
3004 while (peek_atom () != ATOM_RPAREN
)
3006 c
= gfc_constructor_append_expr (cp
, NULL
, NULL
);
3009 mio_expr (&c
->expr
);
3010 mio_iterator (&c
->iterator
);
3019 static const mstring ref_types
[] = {
3020 minit ("ARRAY", REF_ARRAY
),
3021 minit ("COMPONENT", REF_COMPONENT
),
3022 minit ("SUBSTRING", REF_SUBSTRING
),
3028 mio_ref (gfc_ref
**rp
)
3035 r
->type
= MIO_NAME (ref_type
) (r
->type
, ref_types
);
3040 mio_array_ref (&r
->u
.ar
);
3044 mio_symbol_ref (&r
->u
.c
.sym
);
3045 mio_component_ref (&r
->u
.c
.component
);
3049 mio_expr (&r
->u
.ss
.start
);
3050 mio_expr (&r
->u
.ss
.end
);
3051 mio_charlen (&r
->u
.ss
.length
);
3060 mio_ref_list (gfc_ref
**rp
)
3062 gfc_ref
*ref
, *head
, *tail
;
3066 if (iomode
== IO_OUTPUT
)
3068 for (ref
= *rp
; ref
; ref
= ref
->next
)
3075 while (peek_atom () != ATOM_RPAREN
)
3078 head
= tail
= gfc_get_ref ();
3081 tail
->next
= gfc_get_ref ();
3095 /* Read and write an integer value. */
3098 mio_gmp_integer (mpz_t
*integer
)
3102 if (iomode
== IO_INPUT
)
3104 if (parse_atom () != ATOM_STRING
)
3105 bad_module ("Expected integer string");
3107 mpz_init (*integer
);
3108 if (mpz_set_str (*integer
, atom_string
, 10))
3109 bad_module ("Error converting integer");
3115 p
= mpz_get_str (NULL
, 10, *integer
);
3116 write_atom (ATOM_STRING
, p
);
3123 mio_gmp_real (mpfr_t
*real
)
3128 if (iomode
== IO_INPUT
)
3130 if (parse_atom () != ATOM_STRING
)
3131 bad_module ("Expected real string");
3134 mpfr_set_str (*real
, atom_string
, 16, GFC_RND_MODE
);
3139 p
= mpfr_get_str (NULL
, &exponent
, 16, 0, *real
, GFC_RND_MODE
);
3141 if (mpfr_nan_p (*real
) || mpfr_inf_p (*real
))
3143 write_atom (ATOM_STRING
, p
);
3148 atom_string
= XCNEWVEC (char, strlen (p
) + 20);
3150 sprintf (atom_string
, "0.%s@%ld", p
, exponent
);
3152 /* Fix negative numbers. */
3153 if (atom_string
[2] == '-')
3155 atom_string
[0] = '-';
3156 atom_string
[1] = '0';
3157 atom_string
[2] = '.';
3160 write_atom (ATOM_STRING
, atom_string
);
3168 /* Save and restore the shape of an array constructor. */
3171 mio_shape (mpz_t
**pshape
, int rank
)
3177 /* A NULL shape is represented by (). */
3180 if (iomode
== IO_OUTPUT
)
3192 if (t
== ATOM_RPAREN
)
3199 shape
= gfc_get_shape (rank
);
3203 for (n
= 0; n
< rank
; n
++)
3204 mio_gmp_integer (&shape
[n
]);
3210 static const mstring expr_types
[] = {
3211 minit ("OP", EXPR_OP
),
3212 minit ("FUNCTION", EXPR_FUNCTION
),
3213 minit ("CONSTANT", EXPR_CONSTANT
),
3214 minit ("VARIABLE", EXPR_VARIABLE
),
3215 minit ("SUBSTRING", EXPR_SUBSTRING
),
3216 minit ("STRUCTURE", EXPR_STRUCTURE
),
3217 minit ("ARRAY", EXPR_ARRAY
),
3218 minit ("NULL", EXPR_NULL
),
3219 minit ("COMPCALL", EXPR_COMPCALL
),
3223 /* INTRINSIC_ASSIGN is missing because it is used as an index for
3224 generic operators, not in expressions. INTRINSIC_USER is also
3225 replaced by the correct function name by the time we see it. */
3227 static const mstring intrinsics
[] =
3229 minit ("UPLUS", INTRINSIC_UPLUS
),
3230 minit ("UMINUS", INTRINSIC_UMINUS
),
3231 minit ("PLUS", INTRINSIC_PLUS
),
3232 minit ("MINUS", INTRINSIC_MINUS
),
3233 minit ("TIMES", INTRINSIC_TIMES
),
3234 minit ("DIVIDE", INTRINSIC_DIVIDE
),
3235 minit ("POWER", INTRINSIC_POWER
),
3236 minit ("CONCAT", INTRINSIC_CONCAT
),
3237 minit ("AND", INTRINSIC_AND
),
3238 minit ("OR", INTRINSIC_OR
),
3239 minit ("EQV", INTRINSIC_EQV
),
3240 minit ("NEQV", INTRINSIC_NEQV
),
3241 minit ("EQ_SIGN", INTRINSIC_EQ
),
3242 minit ("EQ", INTRINSIC_EQ_OS
),
3243 minit ("NE_SIGN", INTRINSIC_NE
),
3244 minit ("NE", INTRINSIC_NE_OS
),
3245 minit ("GT_SIGN", INTRINSIC_GT
),
3246 minit ("GT", INTRINSIC_GT_OS
),
3247 minit ("GE_SIGN", INTRINSIC_GE
),
3248 minit ("GE", INTRINSIC_GE_OS
),
3249 minit ("LT_SIGN", INTRINSIC_LT
),
3250 minit ("LT", INTRINSIC_LT_OS
),
3251 minit ("LE_SIGN", INTRINSIC_LE
),
3252 minit ("LE", INTRINSIC_LE_OS
),
3253 minit ("NOT", INTRINSIC_NOT
),
3254 minit ("PARENTHESES", INTRINSIC_PARENTHESES
),
3255 minit ("USER", INTRINSIC_USER
),
3260 /* Remedy a couple of situations where the gfc_expr's can be defective. */
3263 fix_mio_expr (gfc_expr
*e
)
3265 gfc_symtree
*ns_st
= NULL
;
3268 if (iomode
!= IO_OUTPUT
)
3273 /* If this is a symtree for a symbol that came from a contained module
3274 namespace, it has a unique name and we should look in the current
3275 namespace to see if the required, non-contained symbol is available
3276 yet. If so, the latter should be written. */
3277 if (e
->symtree
->n
.sym
&& check_unique_name (e
->symtree
->name
))
3279 const char *name
= e
->symtree
->n
.sym
->name
;
3280 if (e
->symtree
->n
.sym
->attr
.flavor
== FL_DERIVED
)
3281 name
= dt_upper_string (name
);
3282 ns_st
= gfc_find_symtree (gfc_current_ns
->sym_root
, name
);
3285 /* On the other hand, if the existing symbol is the module name or the
3286 new symbol is a dummy argument, do not do the promotion. */
3287 if (ns_st
&& ns_st
->n
.sym
3288 && ns_st
->n
.sym
->attr
.flavor
!= FL_MODULE
3289 && !e
->symtree
->n
.sym
->attr
.dummy
)
3292 else if (e
->expr_type
== EXPR_FUNCTION
3293 && (e
->value
.function
.name
|| e
->value
.function
.isym
))
3297 /* In some circumstances, a function used in an initialization
3298 expression, in one use associated module, can fail to be
3299 coupled to its symtree when used in a specification
3300 expression in another module. */
3301 fname
= e
->value
.function
.esym
? e
->value
.function
.esym
->name
3302 : e
->value
.function
.isym
->name
;
3303 e
->symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, fname
);
3308 /* This is probably a reference to a private procedure from another
3309 module. To prevent a segfault, make a generic with no specific
3310 instances. If this module is used, without the required
3311 specific coming from somewhere, the appropriate error message
3313 gfc_get_symbol (fname
, gfc_current_ns
, &sym
);
3314 sym
->attr
.flavor
= FL_PROCEDURE
;
3315 sym
->attr
.generic
= 1;
3316 e
->symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, fname
);
3317 gfc_commit_symbol (sym
);
3322 /* Read and write expressions. The form "()" is allowed to indicate a
3326 mio_expr (gfc_expr
**ep
)
3334 if (iomode
== IO_OUTPUT
)
3343 MIO_NAME (expr_t
) (e
->expr_type
, expr_types
);
3348 if (t
== ATOM_RPAREN
)
3355 bad_module ("Expected expression type");
3357 e
= *ep
= gfc_get_expr ();
3358 e
->where
= gfc_current_locus
;
3359 e
->expr_type
= (expr_t
) find_enum (expr_types
);
3362 mio_typespec (&e
->ts
);
3363 mio_integer (&e
->rank
);
3367 switch (e
->expr_type
)
3371 = MIO_NAME (gfc_intrinsic_op
) (e
->value
.op
.op
, intrinsics
);
3373 switch (e
->value
.op
.op
)
3375 case INTRINSIC_UPLUS
:
3376 case INTRINSIC_UMINUS
:
3378 case INTRINSIC_PARENTHESES
:
3379 mio_expr (&e
->value
.op
.op1
);
3382 case INTRINSIC_PLUS
:
3383 case INTRINSIC_MINUS
:
3384 case INTRINSIC_TIMES
:
3385 case INTRINSIC_DIVIDE
:
3386 case INTRINSIC_POWER
:
3387 case INTRINSIC_CONCAT
:
3391 case INTRINSIC_NEQV
:
3393 case INTRINSIC_EQ_OS
:
3395 case INTRINSIC_NE_OS
:
3397 case INTRINSIC_GT_OS
:
3399 case INTRINSIC_GE_OS
:
3401 case INTRINSIC_LT_OS
:
3403 case INTRINSIC_LE_OS
:
3404 mio_expr (&e
->value
.op
.op1
);
3405 mio_expr (&e
->value
.op
.op2
);
3408 case INTRINSIC_USER
:
3409 /* INTRINSIC_USER should not appear in resolved expressions,
3410 though for UDRs we need to stream unresolved ones. */
3411 if (iomode
== IO_OUTPUT
)
3412 write_atom (ATOM_STRING
, e
->value
.op
.uop
->name
);
3415 char *name
= read_string ();
3416 const char *uop_name
= find_use_name (name
, true);
3417 if (uop_name
== NULL
)
3419 size_t len
= strlen (name
);
3420 char *name2
= XCNEWVEC (char, len
+ 2);
3421 memcpy (name2
, name
, len
);
3423 name2
[len
+ 1] = '\0';
3425 uop_name
= name
= name2
;
3427 e
->value
.op
.uop
= gfc_get_uop (uop_name
);
3430 mio_expr (&e
->value
.op
.op1
);
3431 mio_expr (&e
->value
.op
.op2
);
3435 bad_module ("Bad operator");
3441 mio_symtree_ref (&e
->symtree
);
3442 mio_actual_arglist (&e
->value
.function
.actual
);
3444 if (iomode
== IO_OUTPUT
)
3446 e
->value
.function
.name
3447 = mio_allocated_string (e
->value
.function
.name
);
3448 if (e
->value
.function
.esym
)
3452 else if (e
->value
.function
.isym
== NULL
)
3456 mio_integer (&flag
);
3460 mio_symbol_ref (&e
->value
.function
.esym
);
3463 mio_ref_list (&e
->ref
);
3468 write_atom (ATOM_STRING
, e
->value
.function
.isym
->name
);
3473 require_atom (ATOM_STRING
);
3474 if (atom_string
[0] == '\0')
3475 e
->value
.function
.name
= NULL
;
3477 e
->value
.function
.name
= gfc_get_string (atom_string
);
3480 mio_integer (&flag
);
3484 mio_symbol_ref (&e
->value
.function
.esym
);
3487 mio_ref_list (&e
->ref
);
3492 require_atom (ATOM_STRING
);
3493 e
->value
.function
.isym
= gfc_find_function (atom_string
);
3501 mio_symtree_ref (&e
->symtree
);
3502 mio_ref_list (&e
->ref
);
3505 case EXPR_SUBSTRING
:
3506 e
->value
.character
.string
3507 = CONST_CAST (gfc_char_t
*,
3508 mio_allocated_wide_string (e
->value
.character
.string
,
3509 e
->value
.character
.length
));
3510 mio_ref_list (&e
->ref
);
3513 case EXPR_STRUCTURE
:
3515 mio_constructor (&e
->value
.constructor
);
3516 mio_shape (&e
->shape
, e
->rank
);
3523 mio_gmp_integer (&e
->value
.integer
);
3527 gfc_set_model_kind (e
->ts
.kind
);
3528 mio_gmp_real (&e
->value
.real
);
3532 gfc_set_model_kind (e
->ts
.kind
);
3533 mio_gmp_real (&mpc_realref (e
->value
.complex));
3534 mio_gmp_real (&mpc_imagref (e
->value
.complex));
3538 mio_integer (&e
->value
.logical
);
3542 mio_integer (&e
->value
.character
.length
);
3543 e
->value
.character
.string
3544 = CONST_CAST (gfc_char_t
*,
3545 mio_allocated_wide_string (e
->value
.character
.string
,
3546 e
->value
.character
.length
));
3550 bad_module ("Bad type in constant expression");
3568 /* Read and write namelists. */
3571 mio_namelist (gfc_symbol
*sym
)
3573 gfc_namelist
*n
, *m
;
3574 const char *check_name
;
3578 if (iomode
== IO_OUTPUT
)
3580 for (n
= sym
->namelist
; n
; n
= n
->next
)
3581 mio_symbol_ref (&n
->sym
);
3585 /* This departure from the standard is flagged as an error.
3586 It does, in fact, work correctly. TODO: Allow it
3588 if (sym
->attr
.flavor
== FL_NAMELIST
)
3590 check_name
= find_use_name (sym
->name
, false);
3591 if (check_name
&& strcmp (check_name
, sym
->name
) != 0)
3592 gfc_error ("Namelist %s cannot be renamed by USE "
3593 "association to %s", sym
->name
, check_name
);
3597 while (peek_atom () != ATOM_RPAREN
)
3599 n
= gfc_get_namelist ();
3600 mio_symbol_ref (&n
->sym
);
3602 if (sym
->namelist
== NULL
)
3609 sym
->namelist_tail
= m
;
3616 /* Save/restore lists of gfc_interface structures. When loading an
3617 interface, we are really appending to the existing list of
3618 interfaces. Checking for duplicate and ambiguous interfaces has to
3619 be done later when all symbols have been loaded. */
3622 mio_interface_rest (gfc_interface
**ip
)
3624 gfc_interface
*tail
, *p
;
3625 pointer_info
*pi
= NULL
;
3627 if (iomode
== IO_OUTPUT
)
3630 for (p
= *ip
; p
; p
= p
->next
)
3631 mio_symbol_ref (&p
->sym
);
3646 if (peek_atom () == ATOM_RPAREN
)
3649 p
= gfc_get_interface ();
3650 p
->where
= gfc_current_locus
;
3651 pi
= mio_symbol_ref (&p
->sym
);
3667 /* Save/restore a nameless operator interface. */
3670 mio_interface (gfc_interface
**ip
)
3673 mio_interface_rest (ip
);
3677 /* Save/restore a named operator interface. */
3680 mio_symbol_interface (const char **name
, const char **module
,
3684 mio_pool_string (name
);
3685 mio_pool_string (module
);
3686 mio_interface_rest (ip
);
3691 mio_namespace_ref (gfc_namespace
**nsp
)
3696 p
= mio_pointer_ref (nsp
);
3698 if (p
->type
== P_UNKNOWN
)
3699 p
->type
= P_NAMESPACE
;
3701 if (iomode
== IO_INPUT
&& p
->integer
!= 0)
3703 ns
= (gfc_namespace
*) p
->u
.pointer
;
3706 ns
= gfc_get_namespace (NULL
, 0);
3707 associate_integer_pointer (p
, ns
);
3715 /* Save/restore the f2k_derived namespace of a derived-type symbol. */
3717 static gfc_namespace
* current_f2k_derived
;
3720 mio_typebound_proc (gfc_typebound_proc
** proc
)
3723 int overriding_flag
;
3725 if (iomode
== IO_INPUT
)
3727 *proc
= gfc_get_typebound_proc (NULL
);
3728 (*proc
)->where
= gfc_current_locus
;
3734 (*proc
)->access
= MIO_NAME (gfc_access
) ((*proc
)->access
, access_types
);
3736 /* IO the NON_OVERRIDABLE/DEFERRED combination. */
3737 gcc_assert (!((*proc
)->deferred
&& (*proc
)->non_overridable
));
3738 overriding_flag
= ((*proc
)->deferred
<< 1) | (*proc
)->non_overridable
;
3739 overriding_flag
= mio_name (overriding_flag
, binding_overriding
);
3740 (*proc
)->deferred
= ((overriding_flag
& 2) != 0);
3741 (*proc
)->non_overridable
= ((overriding_flag
& 1) != 0);
3742 gcc_assert (!((*proc
)->deferred
&& (*proc
)->non_overridable
));
3744 (*proc
)->nopass
= mio_name ((*proc
)->nopass
, binding_passing
);
3745 (*proc
)->is_generic
= mio_name ((*proc
)->is_generic
, binding_generic
);
3746 (*proc
)->ppc
= mio_name((*proc
)->ppc
, binding_ppc
);
3748 mio_pool_string (&((*proc
)->pass_arg
));
3750 flag
= (int) (*proc
)->pass_arg_num
;
3751 mio_integer (&flag
);
3752 (*proc
)->pass_arg_num
= (unsigned) flag
;
3754 if ((*proc
)->is_generic
)
3761 if (iomode
== IO_OUTPUT
)
3762 for (g
= (*proc
)->u
.generic
; g
; g
= g
->next
)
3764 iop
= (int) g
->is_operator
;
3766 mio_allocated_string (g
->specific_st
->name
);
3770 (*proc
)->u
.generic
= NULL
;
3771 while (peek_atom () != ATOM_RPAREN
)
3773 gfc_symtree
** sym_root
;
3775 g
= gfc_get_tbp_generic ();
3779 g
->is_operator
= (bool) iop
;
3781 require_atom (ATOM_STRING
);
3782 sym_root
= ¤t_f2k_derived
->tb_sym_root
;
3783 g
->specific_st
= gfc_get_tbp_symtree (sym_root
, atom_string
);
3786 g
->next
= (*proc
)->u
.generic
;
3787 (*proc
)->u
.generic
= g
;
3793 else if (!(*proc
)->ppc
)
3794 mio_symtree_ref (&(*proc
)->u
.specific
);
3799 /* Walker-callback function for this purpose. */
3801 mio_typebound_symtree (gfc_symtree
* st
)
3803 if (iomode
== IO_OUTPUT
&& !st
->n
.tb
)
3806 if (iomode
== IO_OUTPUT
)
3809 mio_allocated_string (st
->name
);
3811 /* For IO_INPUT, the above is done in mio_f2k_derived. */
3813 mio_typebound_proc (&st
->n
.tb
);
3817 /* IO a full symtree (in all depth). */
3819 mio_full_typebound_tree (gfc_symtree
** root
)
3823 if (iomode
== IO_OUTPUT
)
3824 gfc_traverse_symtree (*root
, &mio_typebound_symtree
);
3827 while (peek_atom () == ATOM_LPAREN
)
3833 require_atom (ATOM_STRING
);
3834 st
= gfc_get_tbp_symtree (root
, atom_string
);
3837 mio_typebound_symtree (st
);
3845 mio_finalizer (gfc_finalizer
**f
)
3847 if (iomode
== IO_OUTPUT
)
3850 gcc_assert ((*f
)->proc_tree
); /* Should already be resolved. */
3851 mio_symtree_ref (&(*f
)->proc_tree
);
3855 *f
= gfc_get_finalizer ();
3856 (*f
)->where
= gfc_current_locus
; /* Value should not matter. */
3859 mio_symtree_ref (&(*f
)->proc_tree
);
3860 (*f
)->proc_sym
= NULL
;
3865 mio_f2k_derived (gfc_namespace
*f2k
)
3867 current_f2k_derived
= f2k
;
3869 /* Handle the list of finalizer procedures. */
3871 if (iomode
== IO_OUTPUT
)
3874 for (f
= f2k
->finalizers
; f
; f
= f
->next
)
3879 f2k
->finalizers
= NULL
;
3880 while (peek_atom () != ATOM_RPAREN
)
3882 gfc_finalizer
*cur
= NULL
;
3883 mio_finalizer (&cur
);
3884 cur
->next
= f2k
->finalizers
;
3885 f2k
->finalizers
= cur
;
3890 /* Handle type-bound procedures. */
3891 mio_full_typebound_tree (&f2k
->tb_sym_root
);
3893 /* Type-bound user operators. */
3894 mio_full_typebound_tree (&f2k
->tb_uop_root
);
3896 /* Type-bound intrinsic operators. */
3898 if (iomode
== IO_OUTPUT
)
3901 for (op
= GFC_INTRINSIC_BEGIN
; op
!= GFC_INTRINSIC_END
; ++op
)
3903 gfc_intrinsic_op realop
;
3905 if (op
== INTRINSIC_USER
|| !f2k
->tb_op
[op
])
3909 realop
= (gfc_intrinsic_op
) op
;
3910 mio_intrinsic_op (&realop
);
3911 mio_typebound_proc (&f2k
->tb_op
[op
]);
3916 while (peek_atom () != ATOM_RPAREN
)
3918 gfc_intrinsic_op op
= GFC_INTRINSIC_BEGIN
; /* Silence GCC. */
3921 mio_intrinsic_op (&op
);
3922 mio_typebound_proc (&f2k
->tb_op
[op
]);
3929 mio_full_f2k_derived (gfc_symbol
*sym
)
3933 if (iomode
== IO_OUTPUT
)
3935 if (sym
->f2k_derived
)
3936 mio_f2k_derived (sym
->f2k_derived
);
3940 if (peek_atom () != ATOM_RPAREN
)
3942 sym
->f2k_derived
= gfc_get_namespace (NULL
, 0);
3943 mio_f2k_derived (sym
->f2k_derived
);
3946 gcc_assert (!sym
->f2k_derived
);
3952 static const mstring omp_declare_simd_clauses
[] =
3954 minit ("INBRANCH", 0),
3955 minit ("NOTINBRANCH", 1),
3956 minit ("SIMDLEN", 2),
3957 minit ("UNIFORM", 3),
3958 minit ("LINEAR", 4),
3959 minit ("ALIGNED", 5),
3963 /* Handle !$omp declare simd. */
3966 mio_omp_declare_simd (gfc_namespace
*ns
, gfc_omp_declare_simd
**odsp
)
3968 if (iomode
== IO_OUTPUT
)
3973 else if (peek_atom () != ATOM_LPAREN
)
3976 gfc_omp_declare_simd
*ods
= *odsp
;
3979 if (iomode
== IO_OUTPUT
)
3981 write_atom (ATOM_NAME
, "OMP_DECLARE_SIMD");
3984 gfc_omp_namelist
*n
;
3986 if (ods
->clauses
->inbranch
)
3987 mio_name (0, omp_declare_simd_clauses
);
3988 if (ods
->clauses
->notinbranch
)
3989 mio_name (1, omp_declare_simd_clauses
);
3990 if (ods
->clauses
->simdlen_expr
)
3992 mio_name (2, omp_declare_simd_clauses
);
3993 mio_expr (&ods
->clauses
->simdlen_expr
);
3995 for (n
= ods
->clauses
->lists
[OMP_LIST_UNIFORM
]; n
; n
= n
->next
)
3997 mio_name (3, omp_declare_simd_clauses
);
3998 mio_symbol_ref (&n
->sym
);
4000 for (n
= ods
->clauses
->lists
[OMP_LIST_LINEAR
]; n
; n
= n
->next
)
4002 mio_name (4, omp_declare_simd_clauses
);
4003 mio_symbol_ref (&n
->sym
);
4004 mio_expr (&n
->expr
);
4006 for (n
= ods
->clauses
->lists
[OMP_LIST_ALIGNED
]; n
; n
= n
->next
)
4008 mio_name (5, omp_declare_simd_clauses
);
4009 mio_symbol_ref (&n
->sym
);
4010 mio_expr (&n
->expr
);
4016 gfc_omp_namelist
**ptrs
[3] = { NULL
, NULL
, NULL
};
4018 require_atom (ATOM_NAME
);
4019 *odsp
= ods
= gfc_get_omp_declare_simd ();
4020 ods
->where
= gfc_current_locus
;
4021 ods
->proc_name
= ns
->proc_name
;
4022 if (peek_atom () == ATOM_NAME
)
4024 ods
->clauses
= gfc_get_omp_clauses ();
4025 ptrs
[0] = &ods
->clauses
->lists
[OMP_LIST_UNIFORM
];
4026 ptrs
[1] = &ods
->clauses
->lists
[OMP_LIST_LINEAR
];
4027 ptrs
[2] = &ods
->clauses
->lists
[OMP_LIST_ALIGNED
];
4029 while (peek_atom () == ATOM_NAME
)
4031 gfc_omp_namelist
*n
;
4032 int t
= mio_name (0, omp_declare_simd_clauses
);
4036 case 0: ods
->clauses
->inbranch
= true; break;
4037 case 1: ods
->clauses
->notinbranch
= true; break;
4038 case 2: mio_expr (&ods
->clauses
->simdlen_expr
); break;
4042 *ptrs
[t
- 3] = n
= gfc_get_omp_namelist ();
4043 ptrs
[t
- 3] = &n
->next
;
4044 mio_symbol_ref (&n
->sym
);
4046 mio_expr (&n
->expr
);
4052 mio_omp_declare_simd (ns
, &ods
->next
);
4058 static const mstring omp_declare_reduction_stmt
[] =
4060 minit ("ASSIGN", 0),
4067 mio_omp_udr_expr (gfc_omp_udr
*udr
, gfc_symbol
**sym1
, gfc_symbol
**sym2
,
4068 gfc_namespace
*ns
, bool is_initializer
)
4070 if (iomode
== IO_OUTPUT
)
4072 if ((*sym1
)->module
== NULL
)
4074 (*sym1
)->module
= module_name
;
4075 (*sym2
)->module
= module_name
;
4077 mio_symbol_ref (sym1
);
4078 mio_symbol_ref (sym2
);
4079 if (ns
->code
->op
== EXEC_ASSIGN
)
4081 mio_name (0, omp_declare_reduction_stmt
);
4082 mio_expr (&ns
->code
->expr1
);
4083 mio_expr (&ns
->code
->expr2
);
4088 mio_name (1, omp_declare_reduction_stmt
);
4089 mio_symtree_ref (&ns
->code
->symtree
);
4090 mio_actual_arglist (&ns
->code
->ext
.actual
);
4092 flag
= ns
->code
->resolved_isym
!= NULL
;
4093 mio_integer (&flag
);
4095 write_atom (ATOM_STRING
, ns
->code
->resolved_isym
->name
);
4097 mio_symbol_ref (&ns
->code
->resolved_sym
);
4102 pointer_info
*p1
= mio_symbol_ref (sym1
);
4103 pointer_info
*p2
= mio_symbol_ref (sym2
);
4105 gcc_assert (p1
->u
.rsym
.ns
== p2
->u
.rsym
.ns
);
4106 gcc_assert (p1
->u
.rsym
.sym
== NULL
);
4107 /* Add hidden symbols to the symtree. */
4108 pointer_info
*q
= get_integer (p1
->u
.rsym
.ns
);
4109 q
->u
.pointer
= (void *) ns
;
4110 sym
= gfc_new_symbol (is_initializer
? "omp_priv" : "omp_out", ns
);
4112 sym
->module
= gfc_get_string (p1
->u
.rsym
.module
);
4113 associate_integer_pointer (p1
, sym
);
4114 sym
->attr
.omp_udr_artificial_var
= 1;
4115 gcc_assert (p2
->u
.rsym
.sym
== NULL
);
4116 sym
= gfc_new_symbol (is_initializer
? "omp_orig" : "omp_in", ns
);
4118 sym
->module
= gfc_get_string (p2
->u
.rsym
.module
);
4119 associate_integer_pointer (p2
, sym
);
4120 sym
->attr
.omp_udr_artificial_var
= 1;
4121 if (mio_name (0, omp_declare_reduction_stmt
) == 0)
4123 ns
->code
= gfc_get_code (EXEC_ASSIGN
);
4124 mio_expr (&ns
->code
->expr1
);
4125 mio_expr (&ns
->code
->expr2
);
4130 ns
->code
= gfc_get_code (EXEC_CALL
);
4131 mio_symtree_ref (&ns
->code
->symtree
);
4132 mio_actual_arglist (&ns
->code
->ext
.actual
);
4134 mio_integer (&flag
);
4137 require_atom (ATOM_STRING
);
4138 ns
->code
->resolved_isym
= gfc_find_subroutine (atom_string
);
4142 mio_symbol_ref (&ns
->code
->resolved_sym
);
4144 ns
->code
->loc
= gfc_current_locus
;
4150 /* Unlike most other routines, the address of the symbol node is already
4151 fixed on input and the name/module has already been filled in.
4152 If you update the symbol format here, don't forget to update read_module
4153 as well (look for "seek to the symbol's component list"). */
4156 mio_symbol (gfc_symbol
*sym
)
4158 int intmod
= INTMOD_NONE
;
4162 mio_symbol_attribute (&sym
->attr
);
4164 /* Note that components are always saved, even if they are supposed
4165 to be private. Component access is checked during searching. */
4166 mio_component_list (&sym
->components
, sym
->attr
.vtype
);
4167 if (sym
->components
!= NULL
)
4168 sym
->component_access
4169 = MIO_NAME (gfc_access
) (sym
->component_access
, access_types
);
4171 mio_typespec (&sym
->ts
);
4172 if (sym
->ts
.type
== BT_CLASS
)
4173 sym
->attr
.class_ok
= 1;
4175 if (iomode
== IO_OUTPUT
)
4176 mio_namespace_ref (&sym
->formal_ns
);
4179 mio_namespace_ref (&sym
->formal_ns
);
4181 sym
->formal_ns
->proc_name
= sym
;
4184 /* Save/restore common block links. */
4185 mio_symbol_ref (&sym
->common_next
);
4187 mio_formal_arglist (&sym
->formal
);
4189 if (sym
->attr
.flavor
== FL_PARAMETER
)
4190 mio_expr (&sym
->value
);
4192 mio_array_spec (&sym
->as
);
4194 mio_symbol_ref (&sym
->result
);
4196 if (sym
->attr
.cray_pointee
)
4197 mio_symbol_ref (&sym
->cp_pointer
);
4199 /* Load/save the f2k_derived namespace of a derived-type symbol. */
4200 mio_full_f2k_derived (sym
);
4204 /* Add the fields that say whether this is from an intrinsic module,
4205 and if so, what symbol it is within the module. */
4206 /* mio_integer (&(sym->from_intmod)); */
4207 if (iomode
== IO_OUTPUT
)
4209 intmod
= sym
->from_intmod
;
4210 mio_integer (&intmod
);
4214 mio_integer (&intmod
);
4216 sym
->from_intmod
= current_intmod
;
4218 sym
->from_intmod
= (intmod_id
) intmod
;
4221 mio_integer (&(sym
->intmod_sym_id
));
4223 if (sym
->attr
.flavor
== FL_DERIVED
)
4224 mio_integer (&(sym
->hash_value
));
4227 && sym
->formal_ns
->proc_name
== sym
4228 && sym
->formal_ns
->entries
== NULL
)
4229 mio_omp_declare_simd (sym
->formal_ns
, &sym
->formal_ns
->omp_declare_simd
);
4235 /************************* Top level subroutines *************************/
4237 /* Given a root symtree node and a symbol, try to find a symtree that
4238 references the symbol that is not a unique name. */
4240 static gfc_symtree
*
4241 find_symtree_for_symbol (gfc_symtree
*st
, gfc_symbol
*sym
)
4243 gfc_symtree
*s
= NULL
;
4248 s
= find_symtree_for_symbol (st
->right
, sym
);
4251 s
= find_symtree_for_symbol (st
->left
, sym
);
4255 if (st
->n
.sym
== sym
&& !check_unique_name (st
->name
))
4262 /* A recursive function to look for a specific symbol by name and by
4263 module. Whilst several symtrees might point to one symbol, its
4264 is sufficient for the purposes here than one exist. Note that
4265 generic interfaces are distinguished as are symbols that have been
4266 renamed in another module. */
4267 static gfc_symtree
*
4268 find_symbol (gfc_symtree
*st
, const char *name
,
4269 const char *module
, int generic
)
4272 gfc_symtree
*retval
, *s
;
4274 if (st
== NULL
|| st
->n
.sym
== NULL
)
4277 c
= strcmp (name
, st
->n
.sym
->name
);
4278 if (c
== 0 && st
->n
.sym
->module
4279 && strcmp (module
, st
->n
.sym
->module
) == 0
4280 && !check_unique_name (st
->name
))
4282 s
= gfc_find_symtree (gfc_current_ns
->sym_root
, name
);
4284 /* Detect symbols that are renamed by use association in another
4285 module by the absence of a symtree and null attr.use_rename,
4286 since the latter is not transmitted in the module file. */
4287 if (((!generic
&& !st
->n
.sym
->attr
.generic
)
4288 || (generic
&& st
->n
.sym
->attr
.generic
))
4289 && !(s
== NULL
&& !st
->n
.sym
->attr
.use_rename
))
4293 retval
= find_symbol (st
->left
, name
, module
, generic
);
4296 retval
= find_symbol (st
->right
, name
, module
, generic
);
4302 /* Skip a list between balanced left and right parens.
4303 By setting NEST_LEVEL one assumes that a number of NEST_LEVEL opening parens
4304 have been already parsed by hand, and the remaining of the content is to be
4305 skipped here. The default value is 0 (balanced parens). */
4308 skip_list (int nest_level
= 0)
4315 switch (parse_atom ())
4338 /* Load operator interfaces from the module. Interfaces are unusual
4339 in that they attach themselves to existing symbols. */
4342 load_operator_interfaces (void)
4345 char name
[GFC_MAX_SYMBOL_LEN
+ 1], module
[GFC_MAX_SYMBOL_LEN
+ 1];
4347 pointer_info
*pi
= NULL
;
4352 while (peek_atom () != ATOM_RPAREN
)
4356 mio_internal_string (name
);
4357 mio_internal_string (module
);
4359 n
= number_use_names (name
, true);
4362 for (i
= 1; i
<= n
; i
++)
4364 /* Decide if we need to load this one or not. */
4365 p
= find_use_name_n (name
, &i
, true);
4369 while (parse_atom () != ATOM_RPAREN
);
4375 uop
= gfc_get_uop (p
);
4376 pi
= mio_interface_rest (&uop
->op
);
4380 if (gfc_find_uop (p
, NULL
))
4382 uop
= gfc_get_uop (p
);
4383 uop
->op
= gfc_get_interface ();
4384 uop
->op
->where
= gfc_current_locus
;
4385 add_fixup (pi
->integer
, &uop
->op
->sym
);
4394 /* Load interfaces from the module. Interfaces are unusual in that
4395 they attach themselves to existing symbols. */
4398 load_generic_interfaces (void)
4401 char name
[GFC_MAX_SYMBOL_LEN
+ 1], module
[GFC_MAX_SYMBOL_LEN
+ 1];
4403 gfc_interface
*generic
= NULL
, *gen
= NULL
;
4405 bool ambiguous_set
= false;
4409 while (peek_atom () != ATOM_RPAREN
)
4413 mio_internal_string (name
);
4414 mio_internal_string (module
);
4416 n
= number_use_names (name
, false);
4417 renamed
= n
? 1 : 0;
4420 for (i
= 1; i
<= n
; i
++)
4423 /* Decide if we need to load this one or not. */
4424 p
= find_use_name_n (name
, &i
, false);
4426 st
= find_symbol (gfc_current_ns
->sym_root
,
4427 name
, module_name
, 1);
4429 if (!p
|| gfc_find_symbol (p
, NULL
, 0, &sym
))
4431 /* Skip the specific names for these cases. */
4432 while (i
== 1 && parse_atom () != ATOM_RPAREN
);
4437 /* If the symbol exists already and is being USEd without being
4438 in an ONLY clause, do not load a new symtree(11.3.2). */
4439 if (!only_flag
&& st
)
4447 if (strcmp (st
->name
, p
) != 0)
4449 st
= gfc_new_symtree (&gfc_current_ns
->sym_root
, p
);
4455 /* Since we haven't found a valid generic interface, we had
4459 gfc_get_symbol (p
, NULL
, &sym
);
4460 sym
->name
= gfc_get_string (name
);
4461 sym
->module
= module_name
;
4462 sym
->attr
.flavor
= FL_PROCEDURE
;
4463 sym
->attr
.generic
= 1;
4464 sym
->attr
.use_assoc
= 1;
4469 /* Unless sym is a generic interface, this reference
4472 st
= gfc_find_symtree (gfc_current_ns
->sym_root
, p
);
4476 if (st
&& !sym
->attr
.generic
4479 && strcmp (module
, sym
->module
))
4481 ambiguous_set
= true;
4486 sym
->attr
.use_only
= only_flag
;
4487 sym
->attr
.use_rename
= renamed
;
4491 mio_interface_rest (&sym
->generic
);
4492 generic
= sym
->generic
;
4494 else if (!sym
->generic
)
4496 sym
->generic
= generic
;
4497 sym
->attr
.generic_copy
= 1;
4500 /* If a procedure that is not generic has generic interfaces
4501 that include itself, it is generic! We need to take care
4502 to retain symbols ambiguous that were already so. */
4503 if (sym
->attr
.use_assoc
4504 && !sym
->attr
.generic
4505 && sym
->attr
.flavor
== FL_PROCEDURE
)
4507 for (gen
= generic
; gen
; gen
= gen
->next
)
4509 if (gen
->sym
== sym
)
4511 sym
->attr
.generic
= 1;
4526 /* Load common blocks. */
4531 char name
[GFC_MAX_SYMBOL_LEN
+ 1];
4536 while (peek_atom () != ATOM_RPAREN
)
4541 mio_internal_string (name
);
4543 p
= gfc_get_common (name
, 1);
4545 mio_symbol_ref (&p
->head
);
4546 mio_integer (&flags
);
4550 p
->threadprivate
= 1;
4553 /* Get whether this was a bind(c) common or not. */
4554 mio_integer (&p
->is_bind_c
);
4555 /* Get the binding label. */
4556 label
= read_string ();
4558 p
->binding_label
= IDENTIFIER_POINTER (get_identifier (label
));
4568 /* Load equivalences. The flag in_load_equiv informs mio_expr_ref of this
4569 so that unused variables are not loaded and so that the expression can
4575 gfc_equiv
*head
, *tail
, *end
, *eq
, *equiv
;
4579 in_load_equiv
= true;
4581 end
= gfc_current_ns
->equiv
;
4582 while (end
!= NULL
&& end
->next
!= NULL
)
4585 while (peek_atom () != ATOM_RPAREN
) {
4589 while(peek_atom () != ATOM_RPAREN
)
4592 head
= tail
= gfc_get_equiv ();
4595 tail
->eq
= gfc_get_equiv ();
4599 mio_pool_string (&tail
->module
);
4600 mio_expr (&tail
->expr
);
4603 /* Check for duplicate equivalences being loaded from different modules */
4605 for (equiv
= gfc_current_ns
->equiv
; equiv
; equiv
= equiv
->next
)
4607 if (equiv
->module
&& head
->module
4608 && strcmp (equiv
->module
, head
->module
) == 0)
4617 for (eq
= head
; eq
; eq
= head
)
4620 gfc_free_expr (eq
->expr
);
4626 gfc_current_ns
->equiv
= head
;
4637 in_load_equiv
= false;
4641 /* This function loads OpenMP user defined reductions. */
4643 load_omp_udrs (void)
4646 while (peek_atom () != ATOM_RPAREN
)
4648 const char *name
, *newname
;
4652 gfc_omp_reduction_op rop
= OMP_REDUCTION_USER
;
4655 mio_pool_string (&name
);
4657 if (strncmp (name
, "operator ", sizeof ("operator ") - 1) == 0)
4659 const char *p
= name
+ sizeof ("operator ") - 1;
4660 if (strcmp (p
, "+") == 0)
4661 rop
= OMP_REDUCTION_PLUS
;
4662 else if (strcmp (p
, "*") == 0)
4663 rop
= OMP_REDUCTION_TIMES
;
4664 else if (strcmp (p
, "-") == 0)
4665 rop
= OMP_REDUCTION_MINUS
;
4666 else if (strcmp (p
, ".and.") == 0)
4667 rop
= OMP_REDUCTION_AND
;
4668 else if (strcmp (p
, ".or.") == 0)
4669 rop
= OMP_REDUCTION_OR
;
4670 else if (strcmp (p
, ".eqv.") == 0)
4671 rop
= OMP_REDUCTION_EQV
;
4672 else if (strcmp (p
, ".neqv.") == 0)
4673 rop
= OMP_REDUCTION_NEQV
;
4676 if (rop
== OMP_REDUCTION_USER
&& name
[0] == '.')
4678 size_t len
= strlen (name
+ 1);
4679 altname
= XALLOCAVEC (char, len
);
4680 gcc_assert (name
[len
] == '.');
4681 memcpy (altname
, name
+ 1, len
- 1);
4682 altname
[len
- 1] = '\0';
4685 if (rop
== OMP_REDUCTION_USER
)
4686 newname
= find_use_name (altname
? altname
: name
, !!altname
);
4687 else if (only_flag
&& find_use_operator ((gfc_intrinsic_op
) rop
) == NULL
)
4689 if (newname
== NULL
)
4694 if (altname
&& newname
!= altname
)
4696 size_t len
= strlen (newname
);
4697 altname
= XALLOCAVEC (char, len
+ 3);
4699 memcpy (altname
+ 1, newname
, len
);
4700 altname
[len
+ 1] = '.';
4701 altname
[len
+ 2] = '\0';
4702 name
= gfc_get_string (altname
);
4704 st
= gfc_find_symtree (gfc_current_ns
->omp_udr_root
, name
);
4705 gfc_omp_udr
*udr
= gfc_omp_udr_find (st
, &ts
);
4708 require_atom (ATOM_INTEGER
);
4709 pointer_info
*p
= get_integer (atom_int
);
4710 if (strcmp (p
->u
.rsym
.module
, udr
->omp_out
->module
))
4712 gfc_error ("Ambiguous !$OMP DECLARE REDUCTION from "
4714 p
->u
.rsym
.module
, &gfc_current_locus
);
4715 gfc_error ("Previous !$OMP DECLARE REDUCTION from module "
4717 udr
->omp_out
->module
, &udr
->where
);
4722 udr
= gfc_get_omp_udr ();
4726 udr
->where
= gfc_current_locus
;
4727 udr
->combiner_ns
= gfc_get_namespace (gfc_current_ns
, 1);
4728 udr
->combiner_ns
->proc_name
= gfc_current_ns
->proc_name
;
4729 mio_omp_udr_expr (udr
, &udr
->omp_out
, &udr
->omp_in
, udr
->combiner_ns
,
4731 if (peek_atom () != ATOM_RPAREN
)
4733 udr
->initializer_ns
= gfc_get_namespace (gfc_current_ns
, 1);
4734 udr
->initializer_ns
->proc_name
= gfc_current_ns
->proc_name
;
4735 mio_omp_udr_expr (udr
, &udr
->omp_priv
, &udr
->omp_orig
,
4736 udr
->initializer_ns
, true);
4740 udr
->next
= st
->n
.omp_udr
;
4741 st
->n
.omp_udr
= udr
;
4745 st
= gfc_new_symtree (&gfc_current_ns
->omp_udr_root
, name
);
4746 st
->n
.omp_udr
= udr
;
4754 /* Recursive function to traverse the pointer_info tree and load a
4755 needed symbol. We return nonzero if we load a symbol and stop the
4756 traversal, because the act of loading can alter the tree. */
4759 load_needed (pointer_info
*p
)
4770 rv
|= load_needed (p
->left
);
4771 rv
|= load_needed (p
->right
);
4773 if (p
->type
!= P_SYMBOL
|| p
->u
.rsym
.state
!= NEEDED
)
4776 p
->u
.rsym
.state
= USED
;
4778 set_module_locus (&p
->u
.rsym
.where
);
4780 sym
= p
->u
.rsym
.sym
;
4783 q
= get_integer (p
->u
.rsym
.ns
);
4785 ns
= (gfc_namespace
*) q
->u
.pointer
;
4788 /* Create an interface namespace if necessary. These are
4789 the namespaces that hold the formal parameters of module
4792 ns
= gfc_get_namespace (NULL
, 0);
4793 associate_integer_pointer (q
, ns
);
4796 /* Use the module sym as 'proc_name' so that gfc_get_symbol_decl
4797 doesn't go pear-shaped if the symbol is used. */
4799 gfc_find_symbol (p
->u
.rsym
.module
, gfc_current_ns
,
4802 sym
= gfc_new_symbol (p
->u
.rsym
.true_name
, ns
);
4803 sym
->name
= dt_lower_string (p
->u
.rsym
.true_name
);
4804 sym
->module
= gfc_get_string (p
->u
.rsym
.module
);
4805 if (p
->u
.rsym
.binding_label
)
4806 sym
->binding_label
= IDENTIFIER_POINTER (get_identifier
4807 (p
->u
.rsym
.binding_label
));
4809 associate_integer_pointer (p
, sym
);
4813 sym
->attr
.use_assoc
= 1;
4815 /* Mark as only or rename for later diagnosis for explicitly imported
4816 but not used warnings; don't mark internal symbols such as __vtab,
4817 __def_init etc. Only mark them if they have been explicitly loaded. */
4819 if (only_flag
&& sym
->name
[0] != '_' && sym
->name
[1] != '_')
4823 /* Search the use/rename list for the variable; if the variable is
4825 for (u
= gfc_rename_list
; u
; u
= u
->next
)
4827 if (strcmp (u
->use_name
, sym
->name
) == 0)
4829 sym
->attr
.use_only
= 1;
4835 if (p
->u
.rsym
.renamed
)
4836 sym
->attr
.use_rename
= 1;
4842 /* Recursive function for cleaning up things after a module has been read. */
4845 read_cleanup (pointer_info
*p
)
4853 read_cleanup (p
->left
);
4854 read_cleanup (p
->right
);
4856 if (p
->type
== P_SYMBOL
&& p
->u
.rsym
.state
== USED
&& !p
->u
.rsym
.referenced
)
4859 /* Add hidden symbols to the symtree. */
4860 q
= get_integer (p
->u
.rsym
.ns
);
4861 ns
= (gfc_namespace
*) q
->u
.pointer
;
4863 if (!p
->u
.rsym
.sym
->attr
.vtype
4864 && !p
->u
.rsym
.sym
->attr
.vtab
)
4865 st
= gfc_get_unique_symtree (ns
);
4868 /* There is no reason to use 'unique_symtrees' for vtabs or
4869 vtypes - their name is fine for a symtree and reduces the
4870 namespace pollution. */
4871 st
= gfc_find_symtree (ns
->sym_root
, p
->u
.rsym
.sym
->name
);
4873 st
= gfc_new_symtree (&ns
->sym_root
, p
->u
.rsym
.sym
->name
);
4876 st
->n
.sym
= p
->u
.rsym
.sym
;
4879 /* Fixup any symtree references. */
4880 p
->u
.rsym
.symtree
= st
;
4881 resolve_fixups (p
->u
.rsym
.stfixup
, st
);
4882 p
->u
.rsym
.stfixup
= NULL
;
4885 /* Free unused symbols. */
4886 if (p
->type
== P_SYMBOL
&& p
->u
.rsym
.state
== UNUSED
)
4887 gfc_free_symbol (p
->u
.rsym
.sym
);
4891 /* It is not quite enough to check for ambiguity in the symbols by
4892 the loaded symbol and the new symbol not being identical. */
4894 check_for_ambiguous (gfc_symtree
*st
, pointer_info
*info
)
4898 symbol_attribute attr
;
4901 if (gfc_current_ns
->proc_name
&& st
->name
== gfc_current_ns
->proc_name
->name
)
4903 gfc_error ("%qs of module %qs, imported at %C, is also the name of the "
4904 "current program unit", st
->name
, module_name
);
4909 rsym
= info
->u
.rsym
.sym
;
4913 if (st_sym
->attr
.vtab
|| st_sym
->attr
.vtype
)
4916 /* If the existing symbol is generic from a different module and
4917 the new symbol is generic there can be no ambiguity. */
4918 if (st_sym
->attr
.generic
4920 && st_sym
->module
!= module_name
)
4922 /* The new symbol's attributes have not yet been read. Since
4923 we need attr.generic, read it directly. */
4924 get_module_locus (&locus
);
4925 set_module_locus (&info
->u
.rsym
.where
);
4928 mio_symbol_attribute (&attr
);
4929 set_module_locus (&locus
);
4938 /* Read a module file. */
4943 module_locus operator_interfaces
, user_operators
, omp_udrs
;
4945 char name
[GFC_MAX_SYMBOL_LEN
+ 1];
4947 /* Workaround -Wmaybe-uninitialized false positive during
4948 profiledbootstrap by initializing them. */
4949 int ambiguous
= 0, j
, nuse
, symbol
= 0;
4950 pointer_info
*info
, *q
;
4951 gfc_use_rename
*u
= NULL
;
4955 get_module_locus (&operator_interfaces
); /* Skip these for now. */
4958 get_module_locus (&user_operators
);
4962 /* Skip commons and equivalences for now. */
4966 /* Skip OpenMP UDRs. */
4967 get_module_locus (&omp_udrs
);
4972 /* Create the fixup nodes for all the symbols. */
4974 while (peek_atom () != ATOM_RPAREN
)
4977 require_atom (ATOM_INTEGER
);
4978 info
= get_integer (atom_int
);
4980 info
->type
= P_SYMBOL
;
4981 info
->u
.rsym
.state
= UNUSED
;
4983 info
->u
.rsym
.true_name
= read_string ();
4984 info
->u
.rsym
.module
= read_string ();
4985 bind_label
= read_string ();
4986 if (strlen (bind_label
))
4987 info
->u
.rsym
.binding_label
= bind_label
;
4989 XDELETEVEC (bind_label
);
4991 require_atom (ATOM_INTEGER
);
4992 info
->u
.rsym
.ns
= atom_int
;
4994 get_module_locus (&info
->u
.rsym
.where
);
4996 /* See if the symbol has already been loaded by a previous module.
4997 If so, we reference the existing symbol and prevent it from
4998 being loaded again. This should not happen if the symbol being
4999 read is an index for an assumed shape dummy array (ns != 1). */
5001 sym
= find_true_name (info
->u
.rsym
.true_name
, info
->u
.rsym
.module
);
5004 || (sym
->attr
.flavor
== FL_VARIABLE
&& info
->u
.rsym
.ns
!=1))
5010 info
->u
.rsym
.state
= USED
;
5011 info
->u
.rsym
.sym
= sym
;
5012 /* The current symbol has already been loaded, so we can avoid loading
5013 it again. However, if it is a derived type, some of its components
5014 can be used in expressions in the module. To avoid the module loading
5015 failing, we need to associate the module's component pointer indexes
5016 with the existing symbol's component pointers. */
5017 if (sym
->attr
.flavor
== FL_DERIVED
)
5021 /* First seek to the symbol's component list. */
5022 mio_lparen (); /* symbol opening. */
5023 skip_list (); /* skip symbol attribute. */
5025 mio_lparen (); /* component list opening. */
5026 for (c
= sym
->components
; c
; c
= c
->next
)
5029 const char *comp_name
;
5032 mio_lparen (); /* component opening. */
5034 p
= get_integer (n
);
5035 if (p
->u
.pointer
== NULL
)
5036 associate_integer_pointer (p
, c
);
5037 mio_pool_string (&comp_name
);
5038 gcc_assert (comp_name
== c
->name
);
5039 skip_list (1); /* component end. */
5041 mio_rparen (); /* component list closing. */
5043 skip_list (1); /* symbol end. */
5048 /* Some symbols do not have a namespace (eg. formal arguments),
5049 so the automatic "unique symtree" mechanism must be suppressed
5050 by marking them as referenced. */
5051 q
= get_integer (info
->u
.rsym
.ns
);
5052 if (q
->u
.pointer
== NULL
)
5054 info
->u
.rsym
.referenced
= 1;
5058 /* If possible recycle the symtree that references the symbol.
5059 If a symtree is not found and the module does not import one,
5060 a unique-name symtree is found by read_cleanup. */
5061 st
= find_symtree_for_symbol (gfc_current_ns
->sym_root
, sym
);
5064 info
->u
.rsym
.symtree
= st
;
5065 info
->u
.rsym
.referenced
= 1;
5071 /* Parse the symtree lists. This lets us mark which symbols need to
5072 be loaded. Renaming is also done at this point by replacing the
5077 while (peek_atom () != ATOM_RPAREN
)
5079 mio_internal_string (name
);
5080 mio_integer (&ambiguous
);
5081 mio_integer (&symbol
);
5083 info
= get_integer (symbol
);
5085 /* See how many use names there are. If none, go through the start
5086 of the loop at least once. */
5087 nuse
= number_use_names (name
, false);
5088 info
->u
.rsym
.renamed
= nuse
? 1 : 0;
5093 for (j
= 1; j
<= nuse
; j
++)
5095 /* Get the jth local name for this symbol. */
5096 p
= find_use_name_n (name
, &j
, false);
5098 if (p
== NULL
&& strcmp (name
, module_name
) == 0)
5101 /* Exception: Always import vtabs & vtypes. */
5102 if (p
== NULL
&& name
[0] == '_'
5103 && (strncmp (name
, "__vtab_", 5) == 0
5104 || strncmp (name
, "__vtype_", 6) == 0))
5107 /* Skip symtree nodes not in an ONLY clause, unless there
5108 is an existing symtree loaded from another USE statement. */
5111 st
= gfc_find_symtree (gfc_current_ns
->sym_root
, name
);
5113 && strcmp (st
->n
.sym
->name
, info
->u
.rsym
.true_name
) == 0
5114 && st
->n
.sym
->module
!= NULL
5115 && strcmp (st
->n
.sym
->module
, info
->u
.rsym
.module
) == 0)
5117 info
->u
.rsym
.symtree
= st
;
5118 info
->u
.rsym
.sym
= st
->n
.sym
;
5123 /* If a symbol of the same name and module exists already,
5124 this symbol, which is not in an ONLY clause, must not be
5125 added to the namespace(11.3.2). Note that find_symbol
5126 only returns the first occurrence that it finds. */
5127 if (!only_flag
&& !info
->u
.rsym
.renamed
5128 && strcmp (name
, module_name
) != 0
5129 && find_symbol (gfc_current_ns
->sym_root
, name
,
5133 st
= gfc_find_symtree (gfc_current_ns
->sym_root
, p
);
5137 /* Check for ambiguous symbols. */
5138 if (check_for_ambiguous (st
, info
))
5141 info
->u
.rsym
.symtree
= st
;
5145 st
= gfc_find_symtree (gfc_current_ns
->sym_root
, name
);
5147 /* Create a symtree node in the current namespace for this
5149 st
= check_unique_name (p
)
5150 ? gfc_get_unique_symtree (gfc_current_ns
)
5151 : gfc_new_symtree (&gfc_current_ns
->sym_root
, p
);
5152 st
->ambiguous
= ambiguous
;
5154 sym
= info
->u
.rsym
.sym
;
5156 /* Create a symbol node if it doesn't already exist. */
5159 info
->u
.rsym
.sym
= gfc_new_symbol (info
->u
.rsym
.true_name
,
5161 info
->u
.rsym
.sym
->name
= dt_lower_string (info
->u
.rsym
.true_name
);
5162 sym
= info
->u
.rsym
.sym
;
5163 sym
->module
= gfc_get_string (info
->u
.rsym
.module
);
5165 if (info
->u
.rsym
.binding_label
)
5166 sym
->binding_label
=
5167 IDENTIFIER_POINTER (get_identifier
5168 (info
->u
.rsym
.binding_label
));
5174 if (strcmp (name
, p
) != 0)
5175 sym
->attr
.use_rename
= 1;
5178 || (strncmp (name
, "__vtab_", 5) != 0
5179 && strncmp (name
, "__vtype_", 6) != 0))
5180 sym
->attr
.use_only
= only_flag
;
5182 /* Store the symtree pointing to this symbol. */
5183 info
->u
.rsym
.symtree
= st
;
5185 if (info
->u
.rsym
.state
== UNUSED
)
5186 info
->u
.rsym
.state
= NEEDED
;
5187 info
->u
.rsym
.referenced
= 1;
5194 /* Load intrinsic operator interfaces. */
5195 set_module_locus (&operator_interfaces
);
5198 for (i
= GFC_INTRINSIC_BEGIN
; i
!= GFC_INTRINSIC_END
; i
++)
5200 if (i
== INTRINSIC_USER
)
5205 u
= find_use_operator ((gfc_intrinsic_op
) i
);
5216 mio_interface (&gfc_current_ns
->op
[i
]);
5217 if (u
&& !gfc_current_ns
->op
[i
])
5223 /* Load generic and user operator interfaces. These must follow the
5224 loading of symtree because otherwise symbols can be marked as
5227 set_module_locus (&user_operators
);
5229 load_operator_interfaces ();
5230 load_generic_interfaces ();
5235 /* Load OpenMP user defined reductions. */
5236 set_module_locus (&omp_udrs
);
5239 /* At this point, we read those symbols that are needed but haven't
5240 been loaded yet. If one symbol requires another, the other gets
5241 marked as NEEDED if its previous state was UNUSED. */
5243 while (load_needed (pi_root
));
5245 /* Make sure all elements of the rename-list were found in the module. */
5247 for (u
= gfc_rename_list
; u
; u
= u
->next
)
5252 if (u
->op
== INTRINSIC_NONE
)
5254 gfc_error ("Symbol %qs referenced at %L not found in module %qs",
5255 u
->use_name
, &u
->where
, module_name
);
5259 if (u
->op
== INTRINSIC_USER
)
5261 gfc_error ("User operator %qs referenced at %L not found "
5262 "in module %qs", u
->use_name
, &u
->where
, module_name
);
5266 gfc_error ("Intrinsic operator %qs referenced at %L not found "
5267 "in module %qs", gfc_op2string (u
->op
), &u
->where
,
5271 /* Clean up symbol nodes that were never loaded, create references
5272 to hidden symbols. */
5274 read_cleanup (pi_root
);
5278 /* Given an access type that is specific to an entity and the default
5279 access, return nonzero if the entity is publicly accessible. If the
5280 element is declared as PUBLIC, then it is public; if declared
5281 PRIVATE, then private, and otherwise it is public unless the default
5282 access in this context has been declared PRIVATE. */
5284 static bool dump_smod
= false;
5287 check_access (gfc_access specific_access
, gfc_access default_access
)
5292 if (specific_access
== ACCESS_PUBLIC
)
5294 if (specific_access
== ACCESS_PRIVATE
)
5297 if (flag_module_private
)
5298 return default_access
== ACCESS_PUBLIC
;
5300 return default_access
!= ACCESS_PRIVATE
;
5305 gfc_check_symbol_access (gfc_symbol
*sym
)
5307 if (sym
->attr
.vtab
|| sym
->attr
.vtype
)
5310 return check_access (sym
->attr
.access
, sym
->ns
->default_access
);
5314 /* A structure to remember which commons we've already written. */
5316 struct written_common
5318 BBT_HEADER(written_common
);
5319 const char *name
, *label
;
5322 static struct written_common
*written_commons
= NULL
;
5324 /* Comparison function used for balancing the binary tree. */
5327 compare_written_commons (void *a1
, void *b1
)
5329 const char *aname
= ((struct written_common
*) a1
)->name
;
5330 const char *alabel
= ((struct written_common
*) a1
)->label
;
5331 const char *bname
= ((struct written_common
*) b1
)->name
;
5332 const char *blabel
= ((struct written_common
*) b1
)->label
;
5333 int c
= strcmp (aname
, bname
);
5335 return (c
!= 0 ? c
: strcmp (alabel
, blabel
));
5338 /* Free a list of written commons. */
5341 free_written_common (struct written_common
*w
)
5347 free_written_common (w
->left
);
5349 free_written_common (w
->right
);
5354 /* Write a common block to the module -- recursive helper function. */
5357 write_common_0 (gfc_symtree
*st
, bool this_module
)
5363 struct written_common
*w
;
5364 bool write_me
= true;
5369 write_common_0 (st
->left
, this_module
);
5371 /* We will write out the binding label, or "" if no label given. */
5372 name
= st
->n
.common
->name
;
5374 label
= (p
->is_bind_c
&& p
->binding_label
) ? p
->binding_label
: "";
5376 /* Check if we've already output this common. */
5377 w
= written_commons
;
5380 int c
= strcmp (name
, w
->name
);
5381 c
= (c
!= 0 ? c
: strcmp (label
, w
->label
));
5385 w
= (c
< 0) ? w
->left
: w
->right
;
5388 if (this_module
&& p
->use_assoc
)
5393 /* Write the common to the module. */
5395 mio_pool_string (&name
);
5397 mio_symbol_ref (&p
->head
);
5398 flags
= p
->saved
? 1 : 0;
5399 if (p
->threadprivate
)
5401 mio_integer (&flags
);
5403 /* Write out whether the common block is bind(c) or not. */
5404 mio_integer (&(p
->is_bind_c
));
5406 mio_pool_string (&label
);
5409 /* Record that we have written this common. */
5410 w
= XCNEW (struct written_common
);
5413 gfc_insert_bbt (&written_commons
, w
, compare_written_commons
);
5416 write_common_0 (st
->right
, this_module
);
5420 /* Write a common, by initializing the list of written commons, calling
5421 the recursive function write_common_0() and cleaning up afterwards. */
5424 write_common (gfc_symtree
*st
)
5426 written_commons
= NULL
;
5427 write_common_0 (st
, true);
5428 write_common_0 (st
, false);
5429 free_written_common (written_commons
);
5430 written_commons
= NULL
;
5434 /* Write the blank common block to the module. */
5437 write_blank_common (void)
5439 const char * name
= BLANK_COMMON_NAME
;
5441 /* TODO: Blank commons are not bind(c). The F2003 standard probably says
5442 this, but it hasn't been checked. Just making it so for now. */
5445 if (gfc_current_ns
->blank_common
.head
== NULL
)
5450 mio_pool_string (&name
);
5452 mio_symbol_ref (&gfc_current_ns
->blank_common
.head
);
5453 saved
= gfc_current_ns
->blank_common
.saved
;
5454 mio_integer (&saved
);
5456 /* Write out whether the common block is bind(c) or not. */
5457 mio_integer (&is_bind_c
);
5459 /* Write out an empty binding label. */
5460 write_atom (ATOM_STRING
, "");
5466 /* Write equivalences to the module. */
5475 for (eq
= gfc_current_ns
->equiv
; eq
; eq
= eq
->next
)
5479 for (e
= eq
; e
; e
= e
->eq
)
5481 if (e
->module
== NULL
)
5482 e
->module
= gfc_get_string ("%s.eq.%d", module_name
, num
);
5483 mio_allocated_string (e
->module
);
5484 mio_expr (&e
->expr
);
5493 /* Write a symbol to the module. */
5496 write_symbol (int n
, gfc_symbol
*sym
)
5500 if (sym
->attr
.flavor
== FL_UNKNOWN
|| sym
->attr
.flavor
== FL_LABEL
)
5501 gfc_internal_error ("write_symbol(): bad module symbol %qs", sym
->name
);
5505 if (sym
->attr
.flavor
== FL_DERIVED
)
5508 name
= dt_upper_string (sym
->name
);
5509 mio_pool_string (&name
);
5512 mio_pool_string (&sym
->name
);
5514 mio_pool_string (&sym
->module
);
5515 if ((sym
->attr
.is_bind_c
|| sym
->attr
.is_iso_c
) && sym
->binding_label
)
5517 label
= sym
->binding_label
;
5518 mio_pool_string (&label
);
5521 write_atom (ATOM_STRING
, "");
5523 mio_pointer_ref (&sym
->ns
);
5530 /* Recursive traversal function to write the initial set of symbols to
5531 the module. We check to see if the symbol should be written
5532 according to the access specification. */
5535 write_symbol0 (gfc_symtree
*st
)
5539 bool dont_write
= false;
5544 write_symbol0 (st
->left
);
5547 if (sym
->module
== NULL
)
5548 sym
->module
= module_name
;
5550 if (sym
->attr
.flavor
== FL_PROCEDURE
&& sym
->attr
.generic
5551 && !sym
->attr
.subroutine
&& !sym
->attr
.function
)
5554 if (!gfc_check_symbol_access (sym
))
5559 p
= get_pointer (sym
);
5560 if (p
->type
== P_UNKNOWN
)
5563 if (p
->u
.wsym
.state
!= WRITTEN
)
5565 write_symbol (p
->integer
, sym
);
5566 p
->u
.wsym
.state
= WRITTEN
;
5570 write_symbol0 (st
->right
);
5575 write_omp_udr (gfc_omp_udr
*udr
)
5579 case OMP_REDUCTION_USER
:
5580 /* Non-operators can't be used outside of the module. */
5581 if (udr
->name
[0] != '.')
5586 size_t len
= strlen (udr
->name
+ 1);
5587 char *name
= XALLOCAVEC (char, len
);
5588 memcpy (name
, udr
->name
, len
- 1);
5589 name
[len
- 1] = '\0';
5590 st
= gfc_find_symtree (gfc_current_ns
->uop_root
, name
);
5591 /* If corresponding user operator is private, don't write
5595 gfc_user_op
*uop
= st
->n
.uop
;
5596 if (!check_access (uop
->access
, uop
->ns
->default_access
))
5601 case OMP_REDUCTION_PLUS
:
5602 case OMP_REDUCTION_MINUS
:
5603 case OMP_REDUCTION_TIMES
:
5604 case OMP_REDUCTION_AND
:
5605 case OMP_REDUCTION_OR
:
5606 case OMP_REDUCTION_EQV
:
5607 case OMP_REDUCTION_NEQV
:
5608 /* If corresponding operator is private, don't write the UDR. */
5609 if (!check_access (gfc_current_ns
->operator_access
[udr
->rop
],
5610 gfc_current_ns
->default_access
))
5616 if (udr
->ts
.type
== BT_DERIVED
|| udr
->ts
.type
== BT_CLASS
)
5618 /* If derived type is private, don't write the UDR. */
5619 if (!gfc_check_symbol_access (udr
->ts
.u
.derived
))
5624 mio_pool_string (&udr
->name
);
5625 mio_typespec (&udr
->ts
);
5626 mio_omp_udr_expr (udr
, &udr
->omp_out
, &udr
->omp_in
, udr
->combiner_ns
, false);
5627 if (udr
->initializer_ns
)
5628 mio_omp_udr_expr (udr
, &udr
->omp_priv
, &udr
->omp_orig
,
5629 udr
->initializer_ns
, true);
5635 write_omp_udrs (gfc_symtree
*st
)
5640 write_omp_udrs (st
->left
);
5642 for (udr
= st
->n
.omp_udr
; udr
; udr
= udr
->next
)
5643 write_omp_udr (udr
);
5644 write_omp_udrs (st
->right
);
5648 /* Type for the temporary tree used when writing secondary symbols. */
5650 struct sorted_pointer_info
5652 BBT_HEADER (sorted_pointer_info
);
5657 #define gfc_get_sorted_pointer_info() XCNEW (sorted_pointer_info)
5659 /* Recursively traverse the temporary tree, free its contents. */
5662 free_sorted_pointer_info_tree (sorted_pointer_info
*p
)
5667 free_sorted_pointer_info_tree (p
->left
);
5668 free_sorted_pointer_info_tree (p
->right
);
5673 /* Comparison function for the temporary tree. */
5676 compare_sorted_pointer_info (void *_spi1
, void *_spi2
)
5678 sorted_pointer_info
*spi1
, *spi2
;
5679 spi1
= (sorted_pointer_info
*)_spi1
;
5680 spi2
= (sorted_pointer_info
*)_spi2
;
5682 if (spi1
->p
->integer
< spi2
->p
->integer
)
5684 if (spi1
->p
->integer
> spi2
->p
->integer
)
5690 /* Finds the symbols that need to be written and collects them in the
5691 sorted_pi tree so that they can be traversed in an order
5692 independent of memory addresses. */
5695 find_symbols_to_write(sorted_pointer_info
**tree
, pointer_info
*p
)
5700 if (p
->type
== P_SYMBOL
&& p
->u
.wsym
.state
== NEEDS_WRITE
)
5702 sorted_pointer_info
*sp
= gfc_get_sorted_pointer_info();
5705 gfc_insert_bbt (tree
, sp
, compare_sorted_pointer_info
);
5708 find_symbols_to_write (tree
, p
->left
);
5709 find_symbols_to_write (tree
, p
->right
);
5713 /* Recursive function that traverses the tree of symbols that need to be
5714 written and writes them in order. */
5717 write_symbol1_recursion (sorted_pointer_info
*sp
)
5722 write_symbol1_recursion (sp
->left
);
5724 pointer_info
*p1
= sp
->p
;
5725 gcc_assert (p1
->type
== P_SYMBOL
&& p1
->u
.wsym
.state
== NEEDS_WRITE
);
5727 p1
->u
.wsym
.state
= WRITTEN
;
5728 write_symbol (p1
->integer
, p1
->u
.wsym
.sym
);
5729 p1
->u
.wsym
.sym
->attr
.public_used
= 1;
5731 write_symbol1_recursion (sp
->right
);
5735 /* Write the secondary set of symbols to the module file. These are
5736 symbols that were not public yet are needed by the public symbols
5737 or another dependent symbol. The act of writing a symbol can add
5738 symbols to the pointer_info tree, so we return nonzero if a symbol
5739 was written and pass that information upwards. The caller will
5740 then call this function again until nothing was written. It uses
5741 the utility functions and a temporary tree to ensure a reproducible
5742 ordering of the symbol output and thus the module file. */
5745 write_symbol1 (pointer_info
*p
)
5750 /* Put symbols that need to be written into a tree sorted on the
5753 sorted_pointer_info
*spi_root
= NULL
;
5754 find_symbols_to_write (&spi_root
, p
);
5756 /* No symbols to write, return. */
5760 /* Otherwise, write and free the tree again. */
5761 write_symbol1_recursion (spi_root
);
5762 free_sorted_pointer_info_tree (spi_root
);
5768 /* Write operator interfaces associated with a symbol. */
5771 write_operator (gfc_user_op
*uop
)
5773 static char nullstring
[] = "";
5774 const char *p
= nullstring
;
5776 if (uop
->op
== NULL
|| !check_access (uop
->access
, uop
->ns
->default_access
))
5779 mio_symbol_interface (&uop
->name
, &p
, &uop
->op
);
5783 /* Write generic interfaces from the namespace sym_root. */
5786 write_generic (gfc_symtree
*st
)
5793 write_generic (st
->left
);
5796 if (sym
&& !check_unique_name (st
->name
)
5797 && sym
->generic
&& gfc_check_symbol_access (sym
))
5800 sym
->module
= module_name
;
5802 mio_symbol_interface (&st
->name
, &sym
->module
, &sym
->generic
);
5805 write_generic (st
->right
);
5810 write_symtree (gfc_symtree
*st
)
5817 /* A symbol in an interface body must not be visible in the
5819 if (sym
->ns
!= gfc_current_ns
5820 && sym
->ns
->proc_name
5821 && sym
->ns
->proc_name
->attr
.if_source
== IFSRC_IFBODY
)
5824 if (!gfc_check_symbol_access (sym
)
5825 || (sym
->attr
.flavor
== FL_PROCEDURE
&& sym
->attr
.generic
5826 && !sym
->attr
.subroutine
&& !sym
->attr
.function
))
5829 if (check_unique_name (st
->name
))
5832 p
= find_pointer (sym
);
5834 gfc_internal_error ("write_symtree(): Symbol not written");
5836 mio_pool_string (&st
->name
);
5837 mio_integer (&st
->ambiguous
);
5838 mio_integer (&p
->integer
);
5847 /* Write the operator interfaces. */
5850 for (i
= GFC_INTRINSIC_BEGIN
; i
!= GFC_INTRINSIC_END
; i
++)
5852 if (i
== INTRINSIC_USER
)
5855 mio_interface (check_access (gfc_current_ns
->operator_access
[i
],
5856 gfc_current_ns
->default_access
)
5857 ? &gfc_current_ns
->op
[i
] : NULL
);
5865 gfc_traverse_user_op (gfc_current_ns
, write_operator
);
5871 write_generic (gfc_current_ns
->sym_root
);
5877 write_blank_common ();
5878 write_common (gfc_current_ns
->common_root
);
5890 write_omp_udrs (gfc_current_ns
->omp_udr_root
);
5895 /* Write symbol information. First we traverse all symbols in the
5896 primary namespace, writing those that need to be written.
5897 Sometimes writing one symbol will cause another to need to be
5898 written. A list of these symbols ends up on the write stack, and
5899 we end by popping the bottom of the stack and writing the symbol
5900 until the stack is empty. */
5904 write_symbol0 (gfc_current_ns
->sym_root
);
5905 while (write_symbol1 (pi_root
))
5914 gfc_traverse_symtree (gfc_current_ns
->sym_root
, write_symtree
);
5919 /* Read a CRC32 sum from the gzip trailer of a module file. Returns
5920 true on success, false on failure. */
5923 read_crc32_from_module_file (const char* filename
, uLong
* crc
)
5929 /* Open the file in binary mode. */
5930 if ((file
= fopen (filename
, "rb")) == NULL
)
5933 /* The gzip crc32 value is found in the [END-8, END-4] bytes of the
5934 file. See RFC 1952. */
5935 if (fseek (file
, -8, SEEK_END
) != 0)
5941 /* Read the CRC32. */
5942 if (fread (buf
, 1, 4, file
) != 4)
5948 /* Close the file. */
5951 val
= (buf
[0] & 0xFF) + ((buf
[1] & 0xFF) << 8) + ((buf
[2] & 0xFF) << 16)
5952 + ((buf
[3] & 0xFF) << 24);
5955 /* For debugging, the CRC value printed in hexadecimal should match
5956 the CRC printed by "zcat -l -v filename".
5957 printf("CRC of file %s is %x\n", filename, val); */
5963 /* Given module, dump it to disk. If there was an error while
5964 processing the module, dump_flag will be set to zero and we delete
5965 the module file, even if it was already there. */
5968 dump_module (const char *name
, int dump_flag
)
5971 char *filename
, *filename_tmp
;
5974 module_name
= gfc_get_string (name
);
5978 name
= submodule_name
;
5979 n
= strlen (name
) + strlen (SUBMODULE_EXTENSION
) + 1;
5982 n
= strlen (name
) + strlen (MODULE_EXTENSION
) + 1;
5984 if (gfc_option
.module_dir
!= NULL
)
5986 n
+= strlen (gfc_option
.module_dir
);
5987 filename
= (char *) alloca (n
);
5988 strcpy (filename
, gfc_option
.module_dir
);
5989 strcat (filename
, name
);
5993 filename
= (char *) alloca (n
);
5994 strcpy (filename
, name
);
5998 strcat (filename
, SUBMODULE_EXTENSION
);
6000 strcat (filename
, MODULE_EXTENSION
);
6002 /* Name of the temporary file used to write the module. */
6003 filename_tmp
= (char *) alloca (n
+ 1);
6004 strcpy (filename_tmp
, filename
);
6005 strcat (filename_tmp
, "0");
6007 /* There was an error while processing the module. We delete the
6008 module file, even if it was already there. */
6015 if (gfc_cpp_makedep ())
6016 gfc_cpp_add_target (filename
);
6018 /* Write the module to the temporary file. */
6019 module_fp
= gzopen (filename_tmp
, "w");
6020 if (module_fp
== NULL
)
6021 gfc_fatal_error ("Can't open module file %qs for writing at %C: %s",
6022 filename_tmp
, xstrerror (errno
));
6024 gzprintf (module_fp
, "GFORTRAN module version '%s' created from %s\n",
6025 MOD_VERSION
, gfc_source_file
);
6027 /* Write the module itself. */
6034 free_pi_tree (pi_root
);
6039 if (gzclose (module_fp
))
6040 gfc_fatal_error ("Error writing module file %qs for writing: %s",
6041 filename_tmp
, xstrerror (errno
));
6043 /* Read the CRC32 from the gzip trailers of the module files and
6045 if (!read_crc32_from_module_file (filename_tmp
, &crc
)
6046 || !read_crc32_from_module_file (filename
, &crc_old
)
6049 /* Module file have changed, replace the old one. */
6050 if (remove (filename
) && errno
!= ENOENT
)
6051 gfc_fatal_error ("Can't delete module file %qs: %s", filename
,
6053 if (rename (filename_tmp
, filename
))
6054 gfc_fatal_error ("Can't rename module file %qs to %qs: %s",
6055 filename_tmp
, filename
, xstrerror (errno
));
6059 if (remove (filename_tmp
))
6060 gfc_fatal_error ("Can't delete temporary module file %qs: %s",
6061 filename_tmp
, xstrerror (errno
));
6067 gfc_dump_module (const char *name
, int dump_flag
)
6069 if (gfc_state_stack
->state
== COMP_SUBMODULE
)
6074 dump_module (name
, dump_flag
);
6079 /* Write a submodule file from a module. The 'dump_smod' flag switches
6080 off the check for PRIVATE entities. */
6082 submodule_name
= module_name
;
6083 dump_module (name
, dump_flag
);
6088 create_intrinsic_function (const char *name
, int id
,
6089 const char *modname
, intmod_id module
,
6090 bool subroutine
, gfc_symbol
*result_type
)
6092 gfc_intrinsic_sym
*isym
;
6093 gfc_symtree
*tmp_symtree
;
6096 tmp_symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, name
);
6099 if (strcmp (modname
, tmp_symtree
->n
.sym
->module
) == 0)
6101 gfc_error ("Symbol %qs already declared", name
);
6104 gfc_get_sym_tree (name
, gfc_current_ns
, &tmp_symtree
, false);
6105 sym
= tmp_symtree
->n
.sym
;
6109 gfc_isym_id isym_id
= gfc_isym_id_by_intmod (module
, id
);
6110 isym
= gfc_intrinsic_subroutine_by_id (isym_id
);
6111 sym
->attr
.subroutine
= 1;
6115 gfc_isym_id isym_id
= gfc_isym_id_by_intmod (module
, id
);
6116 isym
= gfc_intrinsic_function_by_id (isym_id
);
6118 sym
->attr
.function
= 1;
6121 sym
->ts
.type
= BT_DERIVED
;
6122 sym
->ts
.u
.derived
= result_type
;
6123 sym
->ts
.is_c_interop
= 1;
6124 isym
->ts
.f90_type
= BT_VOID
;
6125 isym
->ts
.type
= BT_DERIVED
;
6126 isym
->ts
.f90_type
= BT_VOID
;
6127 isym
->ts
.u
.derived
= result_type
;
6128 isym
->ts
.is_c_interop
= 1;
6133 sym
->attr
.flavor
= FL_PROCEDURE
;
6134 sym
->attr
.intrinsic
= 1;
6136 sym
->module
= gfc_get_string (modname
);
6137 sym
->attr
.use_assoc
= 1;
6138 sym
->from_intmod
= module
;
6139 sym
->intmod_sym_id
= id
;
6143 /* Import the intrinsic ISO_C_BINDING module, generating symbols in
6144 the current namespace for all named constants, pointer types, and
6145 procedures in the module unless the only clause was used or a rename
6146 list was provided. */
6149 import_iso_c_binding_module (void)
6151 gfc_symbol
*mod_sym
= NULL
, *return_type
;
6152 gfc_symtree
*mod_symtree
= NULL
, *tmp_symtree
;
6153 gfc_symtree
*c_ptr
= NULL
, *c_funptr
= NULL
;
6154 const char *iso_c_module_name
= "__iso_c_binding";
6157 bool want_c_ptr
= false, want_c_funptr
= false;
6159 /* Look only in the current namespace. */
6160 mod_symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, iso_c_module_name
);
6162 if (mod_symtree
== NULL
)
6164 /* symtree doesn't already exist in current namespace. */
6165 gfc_get_sym_tree (iso_c_module_name
, gfc_current_ns
, &mod_symtree
,
6168 if (mod_symtree
!= NULL
)
6169 mod_sym
= mod_symtree
->n
.sym
;
6171 gfc_internal_error ("import_iso_c_binding_module(): Unable to "
6172 "create symbol for %s", iso_c_module_name
);
6174 mod_sym
->attr
.flavor
= FL_MODULE
;
6175 mod_sym
->attr
.intrinsic
= 1;
6176 mod_sym
->module
= gfc_get_string (iso_c_module_name
);
6177 mod_sym
->from_intmod
= INTMOD_ISO_C_BINDING
;
6180 /* Check whether C_PTR or C_FUNPTR are in the include list, if so, load it;
6181 check also whether C_NULL_(FUN)PTR or C_(FUN)LOC are requested, which
6183 for (u
= gfc_rename_list
; u
; u
= u
->next
)
6185 if (strcmp (c_interop_kinds_table
[ISOCBINDING_NULL_PTR
].name
,
6188 else if (strcmp (c_interop_kinds_table
[ISOCBINDING_LOC
].name
,
6191 else if (strcmp (c_interop_kinds_table
[ISOCBINDING_NULL_FUNPTR
].name
,
6193 want_c_funptr
= true;
6194 else if (strcmp (c_interop_kinds_table
[ISOCBINDING_FUNLOC
].name
,
6196 want_c_funptr
= true;
6197 else if (strcmp (c_interop_kinds_table
[ISOCBINDING_PTR
].name
,
6200 c_ptr
= generate_isocbinding_symbol (iso_c_module_name
,
6201 (iso_c_binding_symbol
)
6203 u
->local_name
[0] ? u
->local_name
6207 else if (strcmp (c_interop_kinds_table
[ISOCBINDING_FUNPTR
].name
,
6211 = generate_isocbinding_symbol (iso_c_module_name
,
6212 (iso_c_binding_symbol
)
6214 u
->local_name
[0] ? u
->local_name
6220 if ((want_c_ptr
|| !only_flag
) && !c_ptr
)
6221 c_ptr
= generate_isocbinding_symbol (iso_c_module_name
,
6222 (iso_c_binding_symbol
)
6224 NULL
, NULL
, only_flag
);
6225 if ((want_c_funptr
|| !only_flag
) && !c_funptr
)
6226 c_funptr
= generate_isocbinding_symbol (iso_c_module_name
,
6227 (iso_c_binding_symbol
)
6229 NULL
, NULL
, only_flag
);
6231 /* Generate the symbols for the named constants representing
6232 the kinds for intrinsic data types. */
6233 for (i
= 0; i
< ISOCBINDING_NUMBER
; i
++)
6236 for (u
= gfc_rename_list
; u
; u
= u
->next
)
6237 if (strcmp (c_interop_kinds_table
[i
].name
, u
->use_name
) == 0)
6246 #define NAMED_FUNCTION(a,b,c,d) \
6248 not_in_std = (gfc_option.allow_std & d) == 0; \
6251 #define NAMED_SUBROUTINE(a,b,c,d) \
6253 not_in_std = (gfc_option.allow_std & d) == 0; \
6256 #define NAMED_INTCST(a,b,c,d) \
6258 not_in_std = (gfc_option.allow_std & d) == 0; \
6261 #define NAMED_REALCST(a,b,c,d) \
6263 not_in_std = (gfc_option.allow_std & d) == 0; \
6266 #define NAMED_CMPXCST(a,b,c,d) \
6268 not_in_std = (gfc_option.allow_std & d) == 0; \
6271 #include "iso-c-binding.def"
6279 gfc_error ("The symbol %qs, referenced at %L, is not "
6280 "in the selected standard", name
, &u
->where
);
6286 #define NAMED_FUNCTION(a,b,c,d) \
6288 if (a == ISOCBINDING_LOC) \
6289 return_type = c_ptr->n.sym; \
6290 else if (a == ISOCBINDING_FUNLOC) \
6291 return_type = c_funptr->n.sym; \
6293 return_type = NULL; \
6294 create_intrinsic_function (u->local_name[0] \
6295 ? u->local_name : u->use_name, \
6296 a, iso_c_module_name, \
6297 INTMOD_ISO_C_BINDING, false, \
6300 #define NAMED_SUBROUTINE(a,b,c,d) \
6302 create_intrinsic_function (u->local_name[0] ? u->local_name \
6304 a, iso_c_module_name, \
6305 INTMOD_ISO_C_BINDING, true, NULL); \
6307 #include "iso-c-binding.def"
6309 case ISOCBINDING_PTR
:
6310 case ISOCBINDING_FUNPTR
:
6311 /* Already handled above. */
6314 if (i
== ISOCBINDING_NULL_PTR
)
6315 tmp_symtree
= c_ptr
;
6316 else if (i
== ISOCBINDING_NULL_FUNPTR
)
6317 tmp_symtree
= c_funptr
;
6320 generate_isocbinding_symbol (iso_c_module_name
,
6321 (iso_c_binding_symbol
) i
,
6323 ? u
->local_name
: u
->use_name
,
6324 tmp_symtree
, false);
6328 if (!found
&& !only_flag
)
6330 /* Skip, if the symbol is not in the enabled standard. */
6333 #define NAMED_FUNCTION(a,b,c,d) \
6335 if ((gfc_option.allow_std & d) == 0) \
6338 #define NAMED_SUBROUTINE(a,b,c,d) \
6340 if ((gfc_option.allow_std & d) == 0) \
6343 #define NAMED_INTCST(a,b,c,d) \
6345 if ((gfc_option.allow_std & d) == 0) \
6348 #define NAMED_REALCST(a,b,c,d) \
6350 if ((gfc_option.allow_std & d) == 0) \
6353 #define NAMED_CMPXCST(a,b,c,d) \
6355 if ((gfc_option.allow_std & d) == 0) \
6358 #include "iso-c-binding.def"
6360 ; /* Not GFC_STD_* versioned. */
6365 #define NAMED_FUNCTION(a,b,c,d) \
6367 if (a == ISOCBINDING_LOC) \
6368 return_type = c_ptr->n.sym; \
6369 else if (a == ISOCBINDING_FUNLOC) \
6370 return_type = c_funptr->n.sym; \
6372 return_type = NULL; \
6373 create_intrinsic_function (b, a, iso_c_module_name, \
6374 INTMOD_ISO_C_BINDING, false, \
6377 #define NAMED_SUBROUTINE(a,b,c,d) \
6379 create_intrinsic_function (b, a, iso_c_module_name, \
6380 INTMOD_ISO_C_BINDING, true, NULL); \
6382 #include "iso-c-binding.def"
6384 case ISOCBINDING_PTR
:
6385 case ISOCBINDING_FUNPTR
:
6386 /* Already handled above. */
6389 if (i
== ISOCBINDING_NULL_PTR
)
6390 tmp_symtree
= c_ptr
;
6391 else if (i
== ISOCBINDING_NULL_FUNPTR
)
6392 tmp_symtree
= c_funptr
;
6395 generate_isocbinding_symbol (iso_c_module_name
,
6396 (iso_c_binding_symbol
) i
, NULL
,
6397 tmp_symtree
, false);
6402 for (u
= gfc_rename_list
; u
; u
= u
->next
)
6407 gfc_error ("Symbol %qs referenced at %L not found in intrinsic "
6408 "module ISO_C_BINDING", u
->use_name
, &u
->where
);
6413 /* Add an integer named constant from a given module. */
6416 create_int_parameter (const char *name
, int value
, const char *modname
,
6417 intmod_id module
, int id
)
6419 gfc_symtree
*tmp_symtree
;
6422 tmp_symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, name
);
6423 if (tmp_symtree
!= NULL
)
6425 if (strcmp (modname
, tmp_symtree
->n
.sym
->module
) == 0)
6428 gfc_error ("Symbol %qs already declared", name
);
6431 gfc_get_sym_tree (name
, gfc_current_ns
, &tmp_symtree
, false);
6432 sym
= tmp_symtree
->n
.sym
;
6434 sym
->module
= gfc_get_string (modname
);
6435 sym
->attr
.flavor
= FL_PARAMETER
;
6436 sym
->ts
.type
= BT_INTEGER
;
6437 sym
->ts
.kind
= gfc_default_integer_kind
;
6438 sym
->value
= gfc_get_int_expr (gfc_default_integer_kind
, NULL
, value
);
6439 sym
->attr
.use_assoc
= 1;
6440 sym
->from_intmod
= module
;
6441 sym
->intmod_sym_id
= id
;
6445 /* Value is already contained by the array constructor, but not
6449 create_int_parameter_array (const char *name
, int size
, gfc_expr
*value
,
6450 const char *modname
, intmod_id module
, int id
)
6452 gfc_symtree
*tmp_symtree
;
6455 tmp_symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, name
);
6456 if (tmp_symtree
!= NULL
)
6458 if (strcmp (modname
, tmp_symtree
->n
.sym
->module
) == 0)
6461 gfc_error ("Symbol %qs already declared", name
);
6464 gfc_get_sym_tree (name
, gfc_current_ns
, &tmp_symtree
, false);
6465 sym
= tmp_symtree
->n
.sym
;
6467 sym
->module
= gfc_get_string (modname
);
6468 sym
->attr
.flavor
= FL_PARAMETER
;
6469 sym
->ts
.type
= BT_INTEGER
;
6470 sym
->ts
.kind
= gfc_default_integer_kind
;
6471 sym
->attr
.use_assoc
= 1;
6472 sym
->from_intmod
= module
;
6473 sym
->intmod_sym_id
= id
;
6474 sym
->attr
.dimension
= 1;
6475 sym
->as
= gfc_get_array_spec ();
6477 sym
->as
->type
= AS_EXPLICIT
;
6478 sym
->as
->lower
[0] = gfc_get_int_expr (gfc_default_integer_kind
, NULL
, 1);
6479 sym
->as
->upper
[0] = gfc_get_int_expr (gfc_default_integer_kind
, NULL
, size
);
6482 sym
->value
->shape
= gfc_get_shape (1);
6483 mpz_init_set_ui (sym
->value
->shape
[0], size
);
6487 /* Add an derived type for a given module. */
6490 create_derived_type (const char *name
, const char *modname
,
6491 intmod_id module
, int id
)
6493 gfc_symtree
*tmp_symtree
;
6494 gfc_symbol
*sym
, *dt_sym
;
6495 gfc_interface
*intr
, *head
;
6497 tmp_symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, name
);
6498 if (tmp_symtree
!= NULL
)
6500 if (strcmp (modname
, tmp_symtree
->n
.sym
->module
) == 0)
6503 gfc_error ("Symbol %qs already declared", name
);
6506 gfc_get_sym_tree (name
, gfc_current_ns
, &tmp_symtree
, false);
6507 sym
= tmp_symtree
->n
.sym
;
6508 sym
->module
= gfc_get_string (modname
);
6509 sym
->from_intmod
= module
;
6510 sym
->intmod_sym_id
= id
;
6511 sym
->attr
.flavor
= FL_PROCEDURE
;
6512 sym
->attr
.function
= 1;
6513 sym
->attr
.generic
= 1;
6515 gfc_get_sym_tree (dt_upper_string (sym
->name
),
6516 gfc_current_ns
, &tmp_symtree
, false);
6517 dt_sym
= tmp_symtree
->n
.sym
;
6518 dt_sym
->name
= gfc_get_string (sym
->name
);
6519 dt_sym
->attr
.flavor
= FL_DERIVED
;
6520 dt_sym
->attr
.private_comp
= 1;
6521 dt_sym
->attr
.zero_comp
= 1;
6522 dt_sym
->attr
.use_assoc
= 1;
6523 dt_sym
->module
= gfc_get_string (modname
);
6524 dt_sym
->from_intmod
= module
;
6525 dt_sym
->intmod_sym_id
= id
;
6527 head
= sym
->generic
;
6528 intr
= gfc_get_interface ();
6530 intr
->where
= gfc_current_locus
;
6532 sym
->generic
= intr
;
6533 sym
->attr
.if_source
= IFSRC_DECL
;
6537 /* Read the contents of the module file into a temporary buffer. */
6540 read_module_to_tmpbuf ()
6542 /* We don't know the uncompressed size, so enlarge the buffer as
6548 module_content
= XNEWVEC (char, cursz
);
6552 int nread
= gzread (module_fp
, module_content
+ len
, rsize
);
6557 module_content
= XRESIZEVEC (char, module_content
, cursz
);
6558 rsize
= cursz
- len
;
6561 module_content
= XRESIZEVEC (char, module_content
, len
+ 1);
6562 module_content
[len
] = '\0';
6568 /* USE the ISO_FORTRAN_ENV intrinsic module. */
6571 use_iso_fortran_env_module (void)
6573 static char mod
[] = "iso_fortran_env";
6575 gfc_symbol
*mod_sym
;
6576 gfc_symtree
*mod_symtree
;
6580 intmod_sym symbol
[] = {
6581 #define NAMED_INTCST(a,b,c,d) { a, b, 0, d },
6582 #define NAMED_KINDARRAY(a,b,c,d) { a, b, 0, d },
6583 #define NAMED_DERIVED_TYPE(a,b,c,d) { a, b, 0, d },
6584 #define NAMED_FUNCTION(a,b,c,d) { a, b, c, d },
6585 #define NAMED_SUBROUTINE(a,b,c,d) { a, b, c, d },
6586 #include "iso-fortran-env.def"
6587 { ISOFORTRANENV_INVALID
, NULL
, -1234, 0 } };
6590 #define NAMED_INTCST(a,b,c,d) symbol[i++].value = c;
6591 #include "iso-fortran-env.def"
6593 /* Generate the symbol for the module itself. */
6594 mod_symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, mod
);
6595 if (mod_symtree
== NULL
)
6597 gfc_get_sym_tree (mod
, gfc_current_ns
, &mod_symtree
, false);
6598 gcc_assert (mod_symtree
);
6599 mod_sym
= mod_symtree
->n
.sym
;
6601 mod_sym
->attr
.flavor
= FL_MODULE
;
6602 mod_sym
->attr
.intrinsic
= 1;
6603 mod_sym
->module
= gfc_get_string (mod
);
6604 mod_sym
->from_intmod
= INTMOD_ISO_FORTRAN_ENV
;
6607 if (!mod_symtree
->n
.sym
->attr
.intrinsic
)
6608 gfc_error ("Use of intrinsic module %qs at %C conflicts with "
6609 "non-intrinsic module name used previously", mod
);
6611 /* Generate the symbols for the module integer named constants. */
6613 for (i
= 0; symbol
[i
].name
; i
++)
6616 for (u
= gfc_rename_list
; u
; u
= u
->next
)
6618 if (strcmp (symbol
[i
].name
, u
->use_name
) == 0)
6623 if (!gfc_notify_std (symbol
[i
].standard
, "The symbol %qs, "
6624 "referenced at %L, is not in the selected "
6625 "standard", symbol
[i
].name
, &u
->where
))
6628 if ((flag_default_integer
|| flag_default_real
)
6629 && symbol
[i
].id
== ISOFORTRANENV_NUMERIC_STORAGE_SIZE
)
6630 gfc_warning_now (0, "Use of the NUMERIC_STORAGE_SIZE named "
6631 "constant from intrinsic module "
6632 "ISO_FORTRAN_ENV at %L is incompatible with "
6633 "option %qs", &u
->where
,
6634 flag_default_integer
6635 ? "-fdefault-integer-8"
6636 : "-fdefault-real-8");
6637 switch (symbol
[i
].id
)
6639 #define NAMED_INTCST(a,b,c,d) \
6641 #include "iso-fortran-env.def"
6642 create_int_parameter (u
->local_name
[0] ? u
->local_name
6644 symbol
[i
].value
, mod
,
6645 INTMOD_ISO_FORTRAN_ENV
, symbol
[i
].id
);
6648 #define NAMED_KINDARRAY(a,b,KINDS,d) \
6650 expr = gfc_get_array_expr (BT_INTEGER, \
6651 gfc_default_integer_kind,\
6653 for (j = 0; KINDS[j].kind != 0; j++) \
6654 gfc_constructor_append_expr (&expr->value.constructor, \
6655 gfc_get_int_expr (gfc_default_integer_kind, NULL, \
6656 KINDS[j].kind), NULL); \
6657 create_int_parameter_array (u->local_name[0] ? u->local_name \
6660 INTMOD_ISO_FORTRAN_ENV, \
6663 #include "iso-fortran-env.def"
6665 #define NAMED_DERIVED_TYPE(a,b,TYPE,STD) \
6667 #include "iso-fortran-env.def"
6668 create_derived_type (u
->local_name
[0] ? u
->local_name
6670 mod
, INTMOD_ISO_FORTRAN_ENV
,
6674 #define NAMED_FUNCTION(a,b,c,d) \
6676 #include "iso-fortran-env.def"
6677 create_intrinsic_function (u
->local_name
[0] ? u
->local_name
6680 INTMOD_ISO_FORTRAN_ENV
, false,
6690 if (!found
&& !only_flag
)
6692 if ((gfc_option
.allow_std
& symbol
[i
].standard
) == 0)
6695 if ((flag_default_integer
|| flag_default_real
)
6696 && symbol
[i
].id
== ISOFORTRANENV_NUMERIC_STORAGE_SIZE
)
6698 "Use of the NUMERIC_STORAGE_SIZE named constant "
6699 "from intrinsic module ISO_FORTRAN_ENV at %C is "
6700 "incompatible with option %s",
6701 flag_default_integer
6702 ? "-fdefault-integer-8" : "-fdefault-real-8");
6704 switch (symbol
[i
].id
)
6706 #define NAMED_INTCST(a,b,c,d) \
6708 #include "iso-fortran-env.def"
6709 create_int_parameter (symbol
[i
].name
, symbol
[i
].value
, mod
,
6710 INTMOD_ISO_FORTRAN_ENV
, symbol
[i
].id
);
6713 #define NAMED_KINDARRAY(a,b,KINDS,d) \
6715 expr = gfc_get_array_expr (BT_INTEGER, gfc_default_integer_kind, \
6717 for (j = 0; KINDS[j].kind != 0; j++) \
6718 gfc_constructor_append_expr (&expr->value.constructor, \
6719 gfc_get_int_expr (gfc_default_integer_kind, NULL, \
6720 KINDS[j].kind), NULL); \
6721 create_int_parameter_array (symbol[i].name, j, expr, mod, \
6722 INTMOD_ISO_FORTRAN_ENV, symbol[i].id);\
6724 #include "iso-fortran-env.def"
6726 #define NAMED_DERIVED_TYPE(a,b,TYPE,STD) \
6728 #include "iso-fortran-env.def"
6729 create_derived_type (symbol
[i
].name
, mod
, INTMOD_ISO_FORTRAN_ENV
,
6733 #define NAMED_FUNCTION(a,b,c,d) \
6735 #include "iso-fortran-env.def"
6736 create_intrinsic_function (symbol
[i
].name
, symbol
[i
].id
, mod
,
6737 INTMOD_ISO_FORTRAN_ENV
, false,
6747 for (u
= gfc_rename_list
; u
; u
= u
->next
)
6752 gfc_error ("Symbol %qs referenced at %L not found in intrinsic "
6753 "module ISO_FORTRAN_ENV", u
->use_name
, &u
->where
);
6758 /* Process a USE directive. */
6761 gfc_use_module (gfc_use_list
*module
)
6766 gfc_symtree
*mod_symtree
;
6767 gfc_use_list
*use_stmt
;
6768 locus old_locus
= gfc_current_locus
;
6770 gfc_current_locus
= module
->where
;
6771 module_name
= module
->module_name
;
6772 gfc_rename_list
= module
->rename
;
6773 only_flag
= module
->only_flag
;
6774 current_intmod
= INTMOD_NONE
;
6777 gfc_warning_now (OPT_Wuse_without_only
,
6778 "USE statement at %C has no ONLY qualifier");
6780 if (gfc_state_stack
->state
== COMP_MODULE
6781 || module
->submodule_name
== NULL
)
6783 filename
= XALLOCAVEC (char, strlen (module_name
)
6784 + strlen (MODULE_EXTENSION
) + 1);
6785 strcpy (filename
, module_name
);
6786 strcat (filename
, MODULE_EXTENSION
);
6790 filename
= XALLOCAVEC (char, strlen (module
->submodule_name
)
6791 + strlen (SUBMODULE_EXTENSION
) + 1);
6792 strcpy (filename
, module
->submodule_name
);
6793 strcat (filename
, SUBMODULE_EXTENSION
);
6796 /* First, try to find an non-intrinsic module, unless the USE statement
6797 specified that the module is intrinsic. */
6799 if (!module
->intrinsic
)
6800 module_fp
= gzopen_included_file (filename
, true, true);
6802 /* Then, see if it's an intrinsic one, unless the USE statement
6803 specified that the module is non-intrinsic. */
6804 if (module_fp
== NULL
&& !module
->non_intrinsic
)
6806 if (strcmp (module_name
, "iso_fortran_env") == 0
6807 && gfc_notify_std (GFC_STD_F2003
, "ISO_FORTRAN_ENV "
6808 "intrinsic module at %C"))
6810 use_iso_fortran_env_module ();
6811 free_rename (module
->rename
);
6812 module
->rename
= NULL
;
6813 gfc_current_locus
= old_locus
;
6814 module
->intrinsic
= true;
6818 if (strcmp (module_name
, "iso_c_binding") == 0
6819 && gfc_notify_std (GFC_STD_F2003
, "ISO_C_BINDING module at %C"))
6821 import_iso_c_binding_module();
6822 free_rename (module
->rename
);
6823 module
->rename
= NULL
;
6824 gfc_current_locus
= old_locus
;
6825 module
->intrinsic
= true;
6829 module_fp
= gzopen_intrinsic_module (filename
);
6831 if (module_fp
== NULL
&& module
->intrinsic
)
6832 gfc_fatal_error ("Can't find an intrinsic module named %qs at %C",
6835 /* Check for the IEEE modules, so we can mark their symbols
6836 accordingly when we read them. */
6837 if (strcmp (module_name
, "ieee_features") == 0
6838 && gfc_notify_std (GFC_STD_F2003
, "IEEE_FEATURES module at %C"))
6840 current_intmod
= INTMOD_IEEE_FEATURES
;
6842 else if (strcmp (module_name
, "ieee_exceptions") == 0
6843 && gfc_notify_std (GFC_STD_F2003
,
6844 "IEEE_EXCEPTIONS module at %C"))
6846 current_intmod
= INTMOD_IEEE_EXCEPTIONS
;
6848 else if (strcmp (module_name
, "ieee_arithmetic") == 0
6849 && gfc_notify_std (GFC_STD_F2003
,
6850 "IEEE_ARITHMETIC module at %C"))
6852 current_intmod
= INTMOD_IEEE_ARITHMETIC
;
6856 if (module_fp
== NULL
)
6857 gfc_fatal_error ("Can't open module file %qs for reading at %C: %s",
6858 filename
, xstrerror (errno
));
6860 /* Check that we haven't already USEd an intrinsic module with the
6863 mod_symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, module_name
);
6864 if (mod_symtree
&& mod_symtree
->n
.sym
->attr
.intrinsic
)
6865 gfc_error ("Use of non-intrinsic module %qs at %C conflicts with "
6866 "intrinsic module name used previously", module_name
);
6873 read_module_to_tmpbuf ();
6874 gzclose (module_fp
);
6876 /* Skip the first line of the module, after checking that this is
6877 a gfortran module file. */
6883 bad_module ("Unexpected end of module");
6886 if ((start
== 1 && strcmp (atom_name
, "GFORTRAN") != 0)
6887 || (start
== 2 && strcmp (atom_name
, " module") != 0))
6888 gfc_fatal_error ("File %qs opened at %C is not a GNU Fortran"
6889 " module file", filename
);
6892 if (strcmp (atom_name
, " version") != 0
6893 || module_char () != ' '
6894 || parse_atom () != ATOM_STRING
6895 || strcmp (atom_string
, MOD_VERSION
))
6896 gfc_fatal_error ("Cannot read module file %qs opened at %C,"
6897 " because it was created by a different"
6898 " version of GNU Fortran", filename
);
6907 /* Make sure we're not reading the same module that we may be building. */
6908 for (p
= gfc_state_stack
; p
; p
= p
->previous
)
6909 if ((p
->state
== COMP_MODULE
|| p
->state
== COMP_SUBMODULE
)
6910 && strcmp (p
->sym
->name
, module_name
) == 0)
6911 gfc_fatal_error ("Can't USE the same %smodule we're building!",
6912 p
->state
== COMP_SUBMODULE
? "sub" : "");
6915 init_true_name_tree ();
6919 free_true_name (true_name_root
);
6920 true_name_root
= NULL
;
6922 free_pi_tree (pi_root
);
6925 XDELETEVEC (module_content
);
6926 module_content
= NULL
;
6928 use_stmt
= gfc_get_use_list ();
6929 *use_stmt
= *module
;
6930 use_stmt
->next
= gfc_current_ns
->use_stmts
;
6931 gfc_current_ns
->use_stmts
= use_stmt
;
6933 gfc_current_locus
= old_locus
;
6937 /* Remove duplicated intrinsic operators from the rename list. */
6940 rename_list_remove_duplicate (gfc_use_rename
*list
)
6942 gfc_use_rename
*seek
, *last
;
6944 for (; list
; list
= list
->next
)
6945 if (list
->op
!= INTRINSIC_USER
&& list
->op
!= INTRINSIC_NONE
)
6948 for (seek
= list
->next
; seek
; seek
= last
->next
)
6950 if (list
->op
== seek
->op
)
6952 last
->next
= seek
->next
;
6962 /* Process all USE directives. */
6965 gfc_use_modules (void)
6967 gfc_use_list
*next
, *seek
, *last
;
6969 for (next
= module_list
; next
; next
= next
->next
)
6971 bool non_intrinsic
= next
->non_intrinsic
;
6972 bool intrinsic
= next
->intrinsic
;
6973 bool neither
= !non_intrinsic
&& !intrinsic
;
6975 for (seek
= next
->next
; seek
; seek
= seek
->next
)
6977 if (next
->module_name
!= seek
->module_name
)
6980 if (seek
->non_intrinsic
)
6981 non_intrinsic
= true;
6982 else if (seek
->intrinsic
)
6988 if (intrinsic
&& neither
&& !non_intrinsic
)
6993 filename
= XALLOCAVEC (char,
6994 strlen (next
->module_name
)
6995 + strlen (MODULE_EXTENSION
) + 1);
6996 strcpy (filename
, next
->module_name
);
6997 strcat (filename
, MODULE_EXTENSION
);
6998 fp
= gfc_open_included_file (filename
, true, true);
7001 non_intrinsic
= true;
7007 for (seek
= next
->next
; seek
; seek
= last
->next
)
7009 if (next
->module_name
!= seek
->module_name
)
7015 if ((!next
->intrinsic
&& !seek
->intrinsic
)
7016 || (next
->intrinsic
&& seek
->intrinsic
)
7019 if (!seek
->only_flag
)
7020 next
->only_flag
= false;
7023 gfc_use_rename
*r
= seek
->rename
;
7026 r
->next
= next
->rename
;
7027 next
->rename
= seek
->rename
;
7029 last
->next
= seek
->next
;
7037 for (; module_list
; module_list
= next
)
7039 next
= module_list
->next
;
7040 rename_list_remove_duplicate (module_list
->rename
);
7041 gfc_use_module (module_list
);
7044 gfc_rename_list
= NULL
;
7049 gfc_free_use_stmts (gfc_use_list
*use_stmts
)
7052 for (; use_stmts
; use_stmts
= next
)
7054 gfc_use_rename
*next_rename
;
7056 for (; use_stmts
->rename
; use_stmts
->rename
= next_rename
)
7058 next_rename
= use_stmts
->rename
->next
;
7059 free (use_stmts
->rename
);
7061 next
= use_stmts
->next
;
7068 gfc_module_init_2 (void)
7070 last_atom
= ATOM_LPAREN
;
7071 gfc_rename_list
= NULL
;
7077 gfc_module_done_2 (void)
7079 free_rename (gfc_rename_list
);
7080 gfc_rename_list
= NULL
;