1 /* Handle modules, which amounts to loading and saving symbols and
2 their attendant structures.
3 Copyright (C) 2000-2017 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 "stringpool.h"
76 #include "parse.h" /* FIXME */
77 #include "constructor.h"
82 #define MODULE_EXTENSION ".mod"
83 #define SUBMODULE_EXTENSION ".smod"
85 /* Don't put any single quote (') in MOD_VERSION, if you want it to be
87 #define MOD_VERSION "15"
90 /* Structure that describes a position within a module file. */
99 /* Structure for list of symbols of intrinsic modules. */
112 P_UNKNOWN
= 0, P_OTHER
, P_NAMESPACE
, P_COMPONENT
, P_SYMBOL
116 /* The fixup structure lists pointers to pointers that have to
117 be updated when a pointer value becomes known. */
119 typedef struct fixup_t
122 struct fixup_t
*next
;
127 /* Structure for holding extra info needed for pointers being read. */
143 typedef struct pointer_info
145 BBT_HEADER (pointer_info
);
149 /* The first component of each member of the union is the pointer
156 void *pointer
; /* Member for doing pointer searches. */
161 char *true_name
, *module
, *binding_label
;
163 gfc_symtree
*symtree
;
164 enum gfc_rsym_state state
;
165 int ns
, referenced
, renamed
;
173 enum gfc_wsym_state state
;
182 #define gfc_get_pointer_info() XCNEW (pointer_info)
185 /* Local variables */
187 /* The gzFile for the module we're reading or writing. */
188 static gzFile module_fp
;
191 /* The name of the module we're reading (USE'ing) or writing. */
192 static const char *module_name
;
193 /* The name of the .smod file that the submodule will write to. */
194 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 gfc_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 ("%s", 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 gfc_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 ("%s", 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 ("%s", 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
:
635 m
= gfc_match (" =>");
637 if (type
== INTERFACE_USER_OP
&& m
== MATCH_YES
638 && (!gfc_notify_std(GFC_STD_F2003
, "Renaming "
639 "operators in USE statements at %C")))
642 if (type
== INTERFACE_USER_OP
)
643 new_use
->op
= INTRINSIC_USER
;
645 if (use_list
->only_flag
)
648 strcpy (new_use
->use_name
, name
);
651 strcpy (new_use
->local_name
, name
);
652 m
= gfc_match_generic_spec (&type2
, new_use
->use_name
, &op
);
657 if (m
== MATCH_ERROR
)
665 strcpy (new_use
->local_name
, name
);
667 m
= gfc_match_generic_spec (&type2
, new_use
->use_name
, &op
);
672 if (m
== MATCH_ERROR
)
676 if (strcmp (new_use
->use_name
, use_list
->module_name
) == 0
677 || strcmp (new_use
->local_name
, use_list
->module_name
) == 0)
679 gfc_error ("The name %qs at %C has already been used as "
680 "an external module name", use_list
->module_name
);
685 case INTERFACE_INTRINSIC_OP
:
693 if (gfc_match_eos () == MATCH_YES
)
695 if (gfc_match_char (',') != MATCH_YES
)
702 gfc_use_list
*last
= module_list
;
705 last
->next
= use_list
;
708 module_list
= use_list
;
713 gfc_syntax_error (ST_USE
);
716 free_rename (use_list
->rename
);
722 /* Match a SUBMODULE statement.
724 According to F2008:11.2.3.2, "The submodule identifier is the
725 ordered pair whose first element is the ancestor module name and
726 whose second element is the submodule name. 'Submodule_name' is
727 used for the submodule filename and uses '@' as a separator, whilst
728 the name of the symbol for the module uses '.' as a a separator.
729 The reasons for these choices are:
730 (i) To follow another leading brand in the submodule filenames;
731 (ii) Since '.' is not particularly visible in the filenames; and
732 (iii) The linker does not permit '@' in mnemonics. */
735 gfc_match_submodule (void)
738 char name
[GFC_MAX_SYMBOL_LEN
+ 1];
739 gfc_use_list
*use_list
;
740 bool seen_colon
= false;
742 if (!gfc_notify_std (GFC_STD_F2008
, "SUBMODULE declaration at %C"))
745 if (gfc_current_state () != COMP_NONE
)
747 gfc_error ("SUBMODULE declaration at %C cannot appear within "
748 "another scoping unit");
752 gfc_new_block
= NULL
;
753 gcc_assert (module_list
== NULL
);
755 if (gfc_match_char ('(') != MATCH_YES
)
760 m
= gfc_match (" %n", name
);
764 use_list
= gfc_get_use_list ();
765 use_list
->where
= gfc_current_locus
;
769 gfc_use_list
*last
= module_list
;
772 last
->next
= use_list
;
773 use_list
->module_name
774 = gfc_get_string ("%s.%s", module_list
->module_name
, name
);
775 use_list
->submodule_name
776 = gfc_get_string ("%s@%s", module_list
->module_name
, name
);
780 module_list
= use_list
;
781 use_list
->module_name
= gfc_get_string ("%s", name
);
782 use_list
->submodule_name
= use_list
->module_name
;
785 if (gfc_match_char (')') == MATCH_YES
)
788 if (gfc_match_char (':') != MATCH_YES
795 m
= gfc_match (" %s%t", &gfc_new_block
);
799 submodule_name
= gfc_get_string ("%s@%s", module_list
->module_name
,
800 gfc_new_block
->name
);
802 gfc_new_block
->name
= gfc_get_string ("%s.%s",
803 module_list
->module_name
,
804 gfc_new_block
->name
);
806 if (!gfc_add_flavor (&gfc_new_block
->attr
, FL_MODULE
,
807 gfc_new_block
->name
, NULL
))
810 /* Just retain the ultimate .(s)mod file for reading, since it
811 contains all the information in its ancestors. */
812 use_list
= module_list
;
813 for (; module_list
->next
; use_list
= module_list
)
815 module_list
= use_list
->next
;
822 gfc_error ("Syntax error in SUBMODULE statement at %C");
827 /* Given a name and a number, inst, return the inst name
828 under which to load this symbol. Returns NULL if this
829 symbol shouldn't be loaded. If inst is zero, returns
830 the number of instances of this name. If interface is
831 true, a user-defined operator is sought, otherwise only
832 non-operators are sought. */
835 find_use_name_n (const char *name
, int *inst
, bool interface
)
838 const char *low_name
= NULL
;
841 /* For derived types. */
842 if (name
[0] != (char) TOLOWER ((unsigned char) name
[0]))
843 low_name
= gfc_dt_lower_string (name
);
846 for (u
= gfc_rename_list
; u
; u
= u
->next
)
848 if ((!low_name
&& strcmp (u
->use_name
, name
) != 0)
849 || (low_name
&& strcmp (u
->use_name
, low_name
) != 0)
850 || (u
->op
== INTRINSIC_USER
&& !interface
)
851 || (u
->op
!= INTRINSIC_USER
&& interface
))
864 return only_flag
? NULL
: name
;
870 if (u
->local_name
[0] == '\0')
872 return gfc_dt_upper_string (u
->local_name
);
875 return (u
->local_name
[0] != '\0') ? u
->local_name
: name
;
879 /* Given a name, return the name under which to load this symbol.
880 Returns NULL if this symbol shouldn't be loaded. */
883 find_use_name (const char *name
, bool interface
)
886 return find_use_name_n (name
, &i
, interface
);
890 /* Given a real name, return the number of use names associated with it. */
893 number_use_names (const char *name
, bool interface
)
896 find_use_name_n (name
, &i
, interface
);
901 /* Try to find the operator in the current list. */
903 static gfc_use_rename
*
904 find_use_operator (gfc_intrinsic_op op
)
908 for (u
= gfc_rename_list
; u
; u
= u
->next
)
916 /*****************************************************************/
918 /* The next couple of subroutines maintain a tree used to avoid a
919 brute-force search for a combination of true name and module name.
920 While symtree names, the name that a particular symbol is known by
921 can changed with USE statements, we still have to keep track of the
922 true names to generate the correct reference, and also avoid
923 loading the same real symbol twice in a program unit.
925 When we start reading, the true name tree is built and maintained
926 as symbols are read. The tree is searched as we load new symbols
927 to see if it already exists someplace in the namespace. */
929 typedef struct true_name
931 BBT_HEADER (true_name
);
937 static true_name
*true_name_root
;
940 /* Compare two true_name structures. */
943 compare_true_names (void *_t1
, void *_t2
)
948 t1
= (true_name
*) _t1
;
949 t2
= (true_name
*) _t2
;
951 c
= ((t1
->sym
->module
> t2
->sym
->module
)
952 - (t1
->sym
->module
< t2
->sym
->module
));
956 return strcmp (t1
->name
, t2
->name
);
960 /* Given a true name, search the true name tree to see if it exists
961 within the main namespace. */
964 find_true_name (const char *name
, const char *module
)
970 t
.name
= gfc_get_string ("%s", name
);
972 sym
.module
= gfc_get_string ("%s", module
);
980 c
= compare_true_names ((void *) (&t
), (void *) p
);
984 p
= (c
< 0) ? p
->left
: p
->right
;
991 /* Given a gfc_symbol pointer that is not in the true name tree, add it. */
994 add_true_name (gfc_symbol
*sym
)
998 t
= XCNEW (true_name
);
1000 if (gfc_fl_struct (sym
->attr
.flavor
))
1001 t
->name
= gfc_dt_upper_string (sym
->name
);
1003 t
->name
= sym
->name
;
1005 gfc_insert_bbt (&true_name_root
, t
, compare_true_names
);
1009 /* Recursive function to build the initial true name tree by
1010 recursively traversing the current namespace. */
1013 build_tnt (gfc_symtree
*st
)
1019 build_tnt (st
->left
);
1020 build_tnt (st
->right
);
1022 if (gfc_fl_struct (st
->n
.sym
->attr
.flavor
))
1023 name
= gfc_dt_upper_string (st
->n
.sym
->name
);
1025 name
= st
->n
.sym
->name
;
1027 if (find_true_name (name
, st
->n
.sym
->module
) != NULL
)
1030 add_true_name (st
->n
.sym
);
1034 /* Initialize the true name tree with the current namespace. */
1037 init_true_name_tree (void)
1039 true_name_root
= NULL
;
1040 build_tnt (gfc_current_ns
->sym_root
);
1044 /* Recursively free a true name tree node. */
1047 free_true_name (true_name
*t
)
1051 free_true_name (t
->left
);
1052 free_true_name (t
->right
);
1058 /*****************************************************************/
1060 /* Module reading and writing. */
1062 /* The following are versions similar to the ones in scanner.c, but
1063 for dealing with compressed module files. */
1066 gzopen_included_file_1 (const char *name
, gfc_directorylist
*list
,
1067 bool module
, bool system
)
1070 gfc_directorylist
*p
;
1073 for (p
= list
; p
; p
= p
->next
)
1075 if (module
&& !p
->use_for_modules
)
1078 fullname
= (char *) alloca(strlen (p
->path
) + strlen (name
) + 1);
1079 strcpy (fullname
, p
->path
);
1080 strcat (fullname
, name
);
1082 f
= gzopen (fullname
, "r");
1085 if (gfc_cpp_makedep ())
1086 gfc_cpp_add_dep (fullname
, system
);
1096 gzopen_included_file (const char *name
, bool include_cwd
, bool module
)
1100 if (IS_ABSOLUTE_PATH (name
) || include_cwd
)
1102 f
= gzopen (name
, "r");
1103 if (f
&& gfc_cpp_makedep ())
1104 gfc_cpp_add_dep (name
, false);
1108 f
= gzopen_included_file_1 (name
, include_dirs
, module
, false);
1114 gzopen_intrinsic_module (const char* name
)
1118 if (IS_ABSOLUTE_PATH (name
))
1120 f
= gzopen (name
, "r");
1121 if (f
&& gfc_cpp_makedep ())
1122 gfc_cpp_add_dep (name
, true);
1126 f
= gzopen_included_file_1 (name
, intrinsic_modules_dirs
, true, true);
1134 ATOM_NAME
, ATOM_LPAREN
, ATOM_RPAREN
, ATOM_INTEGER
, ATOM_STRING
1137 static atom_type last_atom
;
1140 /* The name buffer must be at least as long as a symbol name. Right
1141 now it's not clear how we're going to store numeric constants--
1142 probably as a hexadecimal string, since this will allow the exact
1143 number to be preserved (this can't be done by a decimal
1144 representation). Worry about that later. TODO! */
1146 #define MAX_ATOM_SIZE 100
1148 static int atom_int
;
1149 static char *atom_string
, atom_name
[MAX_ATOM_SIZE
];
1152 /* Report problems with a module. Error reporting is not very
1153 elaborate, since this sorts of errors shouldn't really happen.
1154 This subroutine never returns. */
1156 static void bad_module (const char *) ATTRIBUTE_NORETURN
;
1159 bad_module (const char *msgid
)
1161 XDELETEVEC (module_content
);
1162 module_content
= NULL
;
1167 gfc_fatal_error ("Reading module %qs at line %d column %d: %s",
1168 module_name
, module_line
, module_column
, msgid
);
1171 gfc_fatal_error ("Writing module %qs at line %d column %d: %s",
1172 module_name
, module_line
, module_column
, msgid
);
1175 gfc_fatal_error ("Module %qs at line %d column %d: %s",
1176 module_name
, module_line
, module_column
, msgid
);
1182 /* Set the module's input pointer. */
1185 set_module_locus (module_locus
*m
)
1187 module_column
= m
->column
;
1188 module_line
= m
->line
;
1189 module_pos
= m
->pos
;
1193 /* Get the module's input pointer so that we can restore it later. */
1196 get_module_locus (module_locus
*m
)
1198 m
->column
= module_column
;
1199 m
->line
= module_line
;
1200 m
->pos
= module_pos
;
1204 /* Get the next character in the module, updating our reckoning of
1210 const char c
= module_content
[module_pos
++];
1212 bad_module ("Unexpected EOF");
1214 prev_module_line
= module_line
;
1215 prev_module_column
= module_column
;
1227 /* Unget a character while remembering the line and column. Works for
1228 a single character only. */
1231 module_unget_char (void)
1233 module_line
= prev_module_line
;
1234 module_column
= prev_module_column
;
1238 /* Parse a string constant. The delimiter is guaranteed to be a
1248 atom_string
= XNEWVEC (char, cursz
);
1256 int c2
= module_char ();
1259 module_unget_char ();
1267 atom_string
= XRESIZEVEC (char, atom_string
, cursz
);
1269 atom_string
[len
] = c
;
1273 atom_string
= XRESIZEVEC (char, atom_string
, len
+ 1);
1274 atom_string
[len
] = '\0'; /* C-style string for debug purposes. */
1278 /* Parse a small integer. */
1281 parse_integer (int c
)
1290 module_unget_char ();
1294 atom_int
= 10 * atom_int
+ c
- '0';
1295 if (atom_int
> 99999999)
1296 bad_module ("Integer overflow");
1318 if (!ISALNUM (c
) && c
!= '_' && c
!= '-')
1320 module_unget_char ();
1325 if (++len
> GFC_MAX_SYMBOL_LEN
)
1326 bad_module ("Name too long");
1334 /* Read the next atom in the module's input stream. */
1345 while (c
== ' ' || c
== '\r' || c
== '\n');
1370 return ATOM_INTEGER
;
1428 bad_module ("Bad name");
1435 /* Peek at the next atom on the input. */
1446 while (c
== ' ' || c
== '\r' || c
== '\n');
1451 module_unget_char ();
1455 module_unget_char ();
1459 module_unget_char ();
1472 module_unget_char ();
1473 return ATOM_INTEGER
;
1527 module_unget_char ();
1531 bad_module ("Bad name");
1536 /* Read the next atom from the input, requiring that it be a
1540 require_atom (atom_type type
)
1546 column
= module_column
;
1555 p
= _("Expected name");
1558 p
= _("Expected left parenthesis");
1561 p
= _("Expected right parenthesis");
1564 p
= _("Expected integer");
1567 p
= _("Expected string");
1570 gfc_internal_error ("require_atom(): bad atom type required");
1573 module_column
= column
;
1580 /* Given a pointer to an mstring array, require that the current input
1581 be one of the strings in the array. We return the enum value. */
1584 find_enum (const mstring
*m
)
1588 i
= gfc_string2code (m
, atom_name
);
1592 bad_module ("find_enum(): Enum not found");
1598 /* Read a string. The caller is responsible for freeing. */
1604 require_atom (ATOM_STRING
);
1611 /**************** Module output subroutines ***************************/
1613 /* Output a character to a module file. */
1616 write_char (char out
)
1618 if (gzputc (module_fp
, out
) == EOF
)
1619 gfc_fatal_error ("Error writing modules file: %s", xstrerror (errno
));
1631 /* Write an atom to a module. The line wrapping isn't perfect, but it
1632 should work most of the time. This isn't that big of a deal, since
1633 the file really isn't meant to be read by people anyway. */
1636 write_atom (atom_type atom
, const void *v
)
1640 /* Workaround -Wmaybe-uninitialized false positive during
1641 profiledbootstrap by initializing them. */
1649 p
= (const char *) v
;
1661 i
= *((const int *) v
);
1663 gfc_internal_error ("write_atom(): Writing negative integer");
1665 sprintf (buffer
, "%d", i
);
1670 gfc_internal_error ("write_atom(): Trying to write dab atom");
1674 if(p
== NULL
|| *p
== '\0')
1679 if (atom
!= ATOM_RPAREN
)
1681 if (module_column
+ len
> 72)
1686 if (last_atom
!= ATOM_LPAREN
&& module_column
!= 1)
1691 if (atom
== ATOM_STRING
)
1694 while (p
!= NULL
&& *p
)
1696 if (atom
== ATOM_STRING
&& *p
== '\'')
1701 if (atom
== ATOM_STRING
)
1709 /***************** Mid-level I/O subroutines *****************/
1711 /* These subroutines let their caller read or write atoms without
1712 caring about which of the two is actually happening. This lets a
1713 subroutine concentrate on the actual format of the data being
1716 static void mio_expr (gfc_expr
**);
1717 pointer_info
*mio_symbol_ref (gfc_symbol
**);
1718 pointer_info
*mio_interface_rest (gfc_interface
**);
1719 static void mio_symtree_ref (gfc_symtree
**);
1721 /* Read or write an enumerated value. On writing, we return the input
1722 value for the convenience of callers. We avoid using an integer
1723 pointer because enums are sometimes inside bitfields. */
1726 mio_name (int t
, const mstring
*m
)
1728 if (iomode
== IO_OUTPUT
)
1729 write_atom (ATOM_NAME
, gfc_code2string (m
, t
));
1732 require_atom (ATOM_NAME
);
1739 /* Specialization of mio_name. */
1741 #define DECL_MIO_NAME(TYPE) \
1742 static inline TYPE \
1743 MIO_NAME(TYPE) (TYPE t, const mstring *m) \
1745 return (TYPE) mio_name ((int) t, m); \
1747 #define MIO_NAME(TYPE) mio_name_##TYPE
1752 if (iomode
== IO_OUTPUT
)
1753 write_atom (ATOM_LPAREN
, NULL
);
1755 require_atom (ATOM_LPAREN
);
1762 if (iomode
== IO_OUTPUT
)
1763 write_atom (ATOM_RPAREN
, NULL
);
1765 require_atom (ATOM_RPAREN
);
1770 mio_integer (int *ip
)
1772 if (iomode
== IO_OUTPUT
)
1773 write_atom (ATOM_INTEGER
, ip
);
1776 require_atom (ATOM_INTEGER
);
1782 /* Read or write a gfc_intrinsic_op value. */
1785 mio_intrinsic_op (gfc_intrinsic_op
* op
)
1787 /* FIXME: Would be nicer to do this via the operators symbolic name. */
1788 if (iomode
== IO_OUTPUT
)
1790 int converted
= (int) *op
;
1791 write_atom (ATOM_INTEGER
, &converted
);
1795 require_atom (ATOM_INTEGER
);
1796 *op
= (gfc_intrinsic_op
) atom_int
;
1801 /* Read or write a character pointer that points to a string on the heap. */
1804 mio_allocated_string (const char *s
)
1806 if (iomode
== IO_OUTPUT
)
1808 write_atom (ATOM_STRING
, s
);
1813 require_atom (ATOM_STRING
);
1819 /* Functions for quoting and unquoting strings. */
1822 quote_string (const gfc_char_t
*s
, const size_t slength
)
1824 const gfc_char_t
*p
;
1828 /* Calculate the length we'll need: a backslash takes two ("\\"),
1829 non-printable characters take 10 ("\Uxxxxxxxx") and others take 1. */
1830 for (p
= s
, i
= 0; i
< slength
; p
++, i
++)
1834 else if (!gfc_wide_is_printable (*p
))
1840 q
= res
= XCNEWVEC (char, len
+ 1);
1841 for (p
= s
, i
= 0; i
< slength
; p
++, i
++)
1844 *q
++ = '\\', *q
++ = '\\';
1845 else if (!gfc_wide_is_printable (*p
))
1847 sprintf (q
, "\\U%08" HOST_WIDE_INT_PRINT
"x",
1848 (unsigned HOST_WIDE_INT
) *p
);
1852 *q
++ = (unsigned char) *p
;
1860 unquote_string (const char *s
)
1866 for (p
= s
, len
= 0; *p
; p
++, len
++)
1873 else if (p
[1] == 'U')
1874 p
+= 9; /* That is a "\U????????". */
1876 gfc_internal_error ("unquote_string(): got bad string");
1879 res
= gfc_get_wide_string (len
+ 1);
1880 for (i
= 0, p
= s
; i
< len
; i
++, p
++)
1885 res
[i
] = (unsigned char) *p
;
1886 else if (p
[1] == '\\')
1888 res
[i
] = (unsigned char) '\\';
1893 /* We read the 8-digits hexadecimal constant that follows. */
1898 gcc_assert (p
[1] == 'U');
1899 for (j
= 0; j
< 8; j
++)
1902 gcc_assert (sscanf (&p
[j
+2], "%01x", &n
) == 1);
1916 /* Read or write a character pointer that points to a wide string on the
1917 heap, performing quoting/unquoting of nonprintable characters using the
1918 form \U???????? (where each ? is a hexadecimal digit).
1919 Length is the length of the string, only known and used in output mode. */
1921 static const gfc_char_t
*
1922 mio_allocated_wide_string (const gfc_char_t
*s
, const size_t length
)
1924 if (iomode
== IO_OUTPUT
)
1926 char *quoted
= quote_string (s
, length
);
1927 write_atom (ATOM_STRING
, quoted
);
1933 gfc_char_t
*unquoted
;
1935 require_atom (ATOM_STRING
);
1936 unquoted
= unquote_string (atom_string
);
1943 /* Read or write a string that is in static memory. */
1946 mio_pool_string (const char **stringp
)
1948 /* TODO: one could write the string only once, and refer to it via a
1951 /* As a special case we have to deal with a NULL string. This
1952 happens for the 'module' member of 'gfc_symbol's that are not in a
1953 module. We read / write these as the empty string. */
1954 if (iomode
== IO_OUTPUT
)
1956 const char *p
= *stringp
== NULL
? "" : *stringp
;
1957 write_atom (ATOM_STRING
, p
);
1961 require_atom (ATOM_STRING
);
1962 *stringp
= (atom_string
[0] == '\0'
1963 ? NULL
: gfc_get_string ("%s", atom_string
));
1969 /* Read or write a string that is inside of some already-allocated
1973 mio_internal_string (char *string
)
1975 if (iomode
== IO_OUTPUT
)
1976 write_atom (ATOM_STRING
, string
);
1979 require_atom (ATOM_STRING
);
1980 strcpy (string
, atom_string
);
1987 { AB_ALLOCATABLE
, AB_DIMENSION
, AB_EXTERNAL
, AB_INTRINSIC
, AB_OPTIONAL
,
1988 AB_POINTER
, AB_TARGET
, AB_DUMMY
, AB_RESULT
, AB_DATA
,
1989 AB_IN_NAMELIST
, AB_IN_COMMON
, AB_FUNCTION
, AB_SUBROUTINE
, AB_SEQUENCE
,
1990 AB_ELEMENTAL
, AB_PURE
, AB_RECURSIVE
, AB_GENERIC
, AB_ALWAYS_EXPLICIT
,
1991 AB_CRAY_POINTER
, AB_CRAY_POINTEE
, AB_THREADPRIVATE
,
1992 AB_ALLOC_COMP
, AB_POINTER_COMP
, AB_PROC_POINTER_COMP
, AB_PRIVATE_COMP
,
1993 AB_VALUE
, AB_VOLATILE
, AB_PROTECTED
, AB_LOCK_COMP
, AB_EVENT_COMP
,
1994 AB_IS_BIND_C
, AB_IS_C_INTEROP
, AB_IS_ISO_C
, AB_ABSTRACT
, AB_ZERO_COMP
,
1995 AB_IS_CLASS
, AB_PROCEDURE
, AB_PROC_POINTER
, AB_ASYNCHRONOUS
, AB_CODIMENSION
,
1996 AB_COARRAY_COMP
, AB_VTYPE
, AB_VTAB
, AB_CONTIGUOUS
, AB_CLASS_POINTER
,
1997 AB_IMPLICIT_PURE
, AB_ARTIFICIAL
, AB_UNLIMITED_POLY
, AB_OMP_DECLARE_TARGET
,
1998 AB_ARRAY_OUTER_DEPENDENCY
, AB_MODULE_PROCEDURE
, AB_OACC_DECLARE_CREATE
,
1999 AB_OACC_DECLARE_COPYIN
, AB_OACC_DECLARE_DEVICEPTR
,
2000 AB_OACC_DECLARE_DEVICE_RESIDENT
, AB_OACC_DECLARE_LINK
,
2001 AB_OMP_DECLARE_TARGET_LINK
, AB_PDT_KIND
, AB_PDT_LEN
, AB_PDT_TYPE
,
2002 AB_PDT_TEMPLATE
, AB_PDT_ARRAY
, AB_PDT_STRING
2005 static const mstring attr_bits
[] =
2007 minit ("ALLOCATABLE", AB_ALLOCATABLE
),
2008 minit ("ARTIFICIAL", AB_ARTIFICIAL
),
2009 minit ("ASYNCHRONOUS", AB_ASYNCHRONOUS
),
2010 minit ("DIMENSION", AB_DIMENSION
),
2011 minit ("CODIMENSION", AB_CODIMENSION
),
2012 minit ("CONTIGUOUS", AB_CONTIGUOUS
),
2013 minit ("EXTERNAL", AB_EXTERNAL
),
2014 minit ("INTRINSIC", AB_INTRINSIC
),
2015 minit ("OPTIONAL", AB_OPTIONAL
),
2016 minit ("POINTER", AB_POINTER
),
2017 minit ("VOLATILE", AB_VOLATILE
),
2018 minit ("TARGET", AB_TARGET
),
2019 minit ("THREADPRIVATE", AB_THREADPRIVATE
),
2020 minit ("DUMMY", AB_DUMMY
),
2021 minit ("RESULT", AB_RESULT
),
2022 minit ("DATA", AB_DATA
),
2023 minit ("IN_NAMELIST", AB_IN_NAMELIST
),
2024 minit ("IN_COMMON", AB_IN_COMMON
),
2025 minit ("FUNCTION", AB_FUNCTION
),
2026 minit ("SUBROUTINE", AB_SUBROUTINE
),
2027 minit ("SEQUENCE", AB_SEQUENCE
),
2028 minit ("ELEMENTAL", AB_ELEMENTAL
),
2029 minit ("PURE", AB_PURE
),
2030 minit ("RECURSIVE", AB_RECURSIVE
),
2031 minit ("GENERIC", AB_GENERIC
),
2032 minit ("ALWAYS_EXPLICIT", AB_ALWAYS_EXPLICIT
),
2033 minit ("CRAY_POINTER", AB_CRAY_POINTER
),
2034 minit ("CRAY_POINTEE", AB_CRAY_POINTEE
),
2035 minit ("IS_BIND_C", AB_IS_BIND_C
),
2036 minit ("IS_C_INTEROP", AB_IS_C_INTEROP
),
2037 minit ("IS_ISO_C", AB_IS_ISO_C
),
2038 minit ("VALUE", AB_VALUE
),
2039 minit ("ALLOC_COMP", AB_ALLOC_COMP
),
2040 minit ("COARRAY_COMP", AB_COARRAY_COMP
),
2041 minit ("LOCK_COMP", AB_LOCK_COMP
),
2042 minit ("EVENT_COMP", AB_EVENT_COMP
),
2043 minit ("POINTER_COMP", AB_POINTER_COMP
),
2044 minit ("PROC_POINTER_COMP", AB_PROC_POINTER_COMP
),
2045 minit ("PRIVATE_COMP", AB_PRIVATE_COMP
),
2046 minit ("ZERO_COMP", AB_ZERO_COMP
),
2047 minit ("PROTECTED", AB_PROTECTED
),
2048 minit ("ABSTRACT", AB_ABSTRACT
),
2049 minit ("IS_CLASS", AB_IS_CLASS
),
2050 minit ("PROCEDURE", AB_PROCEDURE
),
2051 minit ("PROC_POINTER", AB_PROC_POINTER
),
2052 minit ("VTYPE", AB_VTYPE
),
2053 minit ("VTAB", AB_VTAB
),
2054 minit ("CLASS_POINTER", AB_CLASS_POINTER
),
2055 minit ("IMPLICIT_PURE", AB_IMPLICIT_PURE
),
2056 minit ("UNLIMITED_POLY", AB_UNLIMITED_POLY
),
2057 minit ("OMP_DECLARE_TARGET", AB_OMP_DECLARE_TARGET
),
2058 minit ("ARRAY_OUTER_DEPENDENCY", AB_ARRAY_OUTER_DEPENDENCY
),
2059 minit ("MODULE_PROCEDURE", AB_MODULE_PROCEDURE
),
2060 minit ("OACC_DECLARE_CREATE", AB_OACC_DECLARE_CREATE
),
2061 minit ("OACC_DECLARE_COPYIN", AB_OACC_DECLARE_COPYIN
),
2062 minit ("OACC_DECLARE_DEVICEPTR", AB_OACC_DECLARE_DEVICEPTR
),
2063 minit ("OACC_DECLARE_DEVICE_RESIDENT", AB_OACC_DECLARE_DEVICE_RESIDENT
),
2064 minit ("OACC_DECLARE_LINK", AB_OACC_DECLARE_LINK
),
2065 minit ("OMP_DECLARE_TARGET_LINK", AB_OMP_DECLARE_TARGET_LINK
),
2066 minit ("PDT_KIND", AB_PDT_KIND
),
2067 minit ("PDT_LEN", AB_PDT_LEN
),
2068 minit ("PDT_TYPE", AB_PDT_TYPE
),
2069 minit ("PDT_TEMPLATE", AB_PDT_TEMPLATE
),
2070 minit ("PDT_ARRAY", AB_PDT_ARRAY
),
2071 minit ("PDT_STRING", AB_PDT_STRING
),
2075 /* For binding attributes. */
2076 static const mstring binding_passing
[] =
2079 minit ("NOPASS", 1),
2082 static const mstring binding_overriding
[] =
2084 minit ("OVERRIDABLE", 0),
2085 minit ("NON_OVERRIDABLE", 1),
2086 minit ("DEFERRED", 2),
2089 static const mstring binding_generic
[] =
2091 minit ("SPECIFIC", 0),
2092 minit ("GENERIC", 1),
2095 static const mstring binding_ppc
[] =
2097 minit ("NO_PPC", 0),
2102 /* Specialization of mio_name. */
2103 DECL_MIO_NAME (ab_attribute
)
2104 DECL_MIO_NAME (ar_type
)
2105 DECL_MIO_NAME (array_type
)
2107 DECL_MIO_NAME (expr_t
)
2108 DECL_MIO_NAME (gfc_access
)
2109 DECL_MIO_NAME (gfc_intrinsic_op
)
2110 DECL_MIO_NAME (ifsrc
)
2111 DECL_MIO_NAME (save_state
)
2112 DECL_MIO_NAME (procedure_type
)
2113 DECL_MIO_NAME (ref_type
)
2114 DECL_MIO_NAME (sym_flavor
)
2115 DECL_MIO_NAME (sym_intent
)
2116 #undef DECL_MIO_NAME
2118 /* Symbol attributes are stored in list with the first three elements
2119 being the enumerated fields, while the remaining elements (if any)
2120 indicate the individual attribute bits. The access field is not
2121 saved-- it controls what symbols are exported when a module is
2125 mio_symbol_attribute (symbol_attribute
*attr
)
2128 unsigned ext_attr
,extension_level
;
2132 attr
->flavor
= MIO_NAME (sym_flavor
) (attr
->flavor
, flavors
);
2133 attr
->intent
= MIO_NAME (sym_intent
) (attr
->intent
, intents
);
2134 attr
->proc
= MIO_NAME (procedure_type
) (attr
->proc
, procedures
);
2135 attr
->if_source
= MIO_NAME (ifsrc
) (attr
->if_source
, ifsrc_types
);
2136 attr
->save
= MIO_NAME (save_state
) (attr
->save
, save_status
);
2138 ext_attr
= attr
->ext_attr
;
2139 mio_integer ((int *) &ext_attr
);
2140 attr
->ext_attr
= ext_attr
;
2142 extension_level
= attr
->extension
;
2143 mio_integer ((int *) &extension_level
);
2144 attr
->extension
= extension_level
;
2146 if (iomode
== IO_OUTPUT
)
2148 if (attr
->allocatable
)
2149 MIO_NAME (ab_attribute
) (AB_ALLOCATABLE
, attr_bits
);
2150 if (attr
->artificial
)
2151 MIO_NAME (ab_attribute
) (AB_ARTIFICIAL
, attr_bits
);
2152 if (attr
->asynchronous
)
2153 MIO_NAME (ab_attribute
) (AB_ASYNCHRONOUS
, attr_bits
);
2154 if (attr
->dimension
)
2155 MIO_NAME (ab_attribute
) (AB_DIMENSION
, attr_bits
);
2156 if (attr
->codimension
)
2157 MIO_NAME (ab_attribute
) (AB_CODIMENSION
, attr_bits
);
2158 if (attr
->contiguous
)
2159 MIO_NAME (ab_attribute
) (AB_CONTIGUOUS
, attr_bits
);
2161 MIO_NAME (ab_attribute
) (AB_EXTERNAL
, attr_bits
);
2162 if (attr
->intrinsic
)
2163 MIO_NAME (ab_attribute
) (AB_INTRINSIC
, attr_bits
);
2165 MIO_NAME (ab_attribute
) (AB_OPTIONAL
, attr_bits
);
2167 MIO_NAME (ab_attribute
) (AB_POINTER
, attr_bits
);
2168 if (attr
->class_pointer
)
2169 MIO_NAME (ab_attribute
) (AB_CLASS_POINTER
, attr_bits
);
2170 if (attr
->is_protected
)
2171 MIO_NAME (ab_attribute
) (AB_PROTECTED
, attr_bits
);
2173 MIO_NAME (ab_attribute
) (AB_VALUE
, attr_bits
);
2174 if (attr
->volatile_
)
2175 MIO_NAME (ab_attribute
) (AB_VOLATILE
, attr_bits
);
2177 MIO_NAME (ab_attribute
) (AB_TARGET
, attr_bits
);
2178 if (attr
->threadprivate
)
2179 MIO_NAME (ab_attribute
) (AB_THREADPRIVATE
, attr_bits
);
2181 MIO_NAME (ab_attribute
) (AB_DUMMY
, attr_bits
);
2183 MIO_NAME (ab_attribute
) (AB_RESULT
, attr_bits
);
2184 /* We deliberately don't preserve the "entry" flag. */
2187 MIO_NAME (ab_attribute
) (AB_DATA
, attr_bits
);
2188 if (attr
->in_namelist
)
2189 MIO_NAME (ab_attribute
) (AB_IN_NAMELIST
, attr_bits
);
2190 if (attr
->in_common
)
2191 MIO_NAME (ab_attribute
) (AB_IN_COMMON
, attr_bits
);
2194 MIO_NAME (ab_attribute
) (AB_FUNCTION
, attr_bits
);
2195 if (attr
->subroutine
)
2196 MIO_NAME (ab_attribute
) (AB_SUBROUTINE
, attr_bits
);
2198 MIO_NAME (ab_attribute
) (AB_GENERIC
, attr_bits
);
2200 MIO_NAME (ab_attribute
) (AB_ABSTRACT
, attr_bits
);
2203 MIO_NAME (ab_attribute
) (AB_SEQUENCE
, attr_bits
);
2204 if (attr
->elemental
)
2205 MIO_NAME (ab_attribute
) (AB_ELEMENTAL
, attr_bits
);
2207 MIO_NAME (ab_attribute
) (AB_PURE
, attr_bits
);
2208 if (attr
->implicit_pure
)
2209 MIO_NAME (ab_attribute
) (AB_IMPLICIT_PURE
, attr_bits
);
2210 if (attr
->unlimited_polymorphic
)
2211 MIO_NAME (ab_attribute
) (AB_UNLIMITED_POLY
, attr_bits
);
2212 if (attr
->recursive
)
2213 MIO_NAME (ab_attribute
) (AB_RECURSIVE
, attr_bits
);
2214 if (attr
->always_explicit
)
2215 MIO_NAME (ab_attribute
) (AB_ALWAYS_EXPLICIT
, attr_bits
);
2216 if (attr
->cray_pointer
)
2217 MIO_NAME (ab_attribute
) (AB_CRAY_POINTER
, attr_bits
);
2218 if (attr
->cray_pointee
)
2219 MIO_NAME (ab_attribute
) (AB_CRAY_POINTEE
, attr_bits
);
2220 if (attr
->is_bind_c
)
2221 MIO_NAME(ab_attribute
) (AB_IS_BIND_C
, attr_bits
);
2222 if (attr
->is_c_interop
)
2223 MIO_NAME(ab_attribute
) (AB_IS_C_INTEROP
, attr_bits
);
2225 MIO_NAME(ab_attribute
) (AB_IS_ISO_C
, attr_bits
);
2226 if (attr
->alloc_comp
)
2227 MIO_NAME (ab_attribute
) (AB_ALLOC_COMP
, attr_bits
);
2228 if (attr
->pointer_comp
)
2229 MIO_NAME (ab_attribute
) (AB_POINTER_COMP
, attr_bits
);
2230 if (attr
->proc_pointer_comp
)
2231 MIO_NAME (ab_attribute
) (AB_PROC_POINTER_COMP
, attr_bits
);
2232 if (attr
->private_comp
)
2233 MIO_NAME (ab_attribute
) (AB_PRIVATE_COMP
, attr_bits
);
2234 if (attr
->coarray_comp
)
2235 MIO_NAME (ab_attribute
) (AB_COARRAY_COMP
, attr_bits
);
2236 if (attr
->lock_comp
)
2237 MIO_NAME (ab_attribute
) (AB_LOCK_COMP
, attr_bits
);
2238 if (attr
->event_comp
)
2239 MIO_NAME (ab_attribute
) (AB_EVENT_COMP
, attr_bits
);
2240 if (attr
->zero_comp
)
2241 MIO_NAME (ab_attribute
) (AB_ZERO_COMP
, attr_bits
);
2243 MIO_NAME (ab_attribute
) (AB_IS_CLASS
, attr_bits
);
2244 if (attr
->procedure
)
2245 MIO_NAME (ab_attribute
) (AB_PROCEDURE
, attr_bits
);
2246 if (attr
->proc_pointer
)
2247 MIO_NAME (ab_attribute
) (AB_PROC_POINTER
, attr_bits
);
2249 MIO_NAME (ab_attribute
) (AB_VTYPE
, attr_bits
);
2251 MIO_NAME (ab_attribute
) (AB_VTAB
, attr_bits
);
2252 if (attr
->omp_declare_target
)
2253 MIO_NAME (ab_attribute
) (AB_OMP_DECLARE_TARGET
, attr_bits
);
2254 if (attr
->array_outer_dependency
)
2255 MIO_NAME (ab_attribute
) (AB_ARRAY_OUTER_DEPENDENCY
, attr_bits
);
2256 if (attr
->module_procedure
)
2257 MIO_NAME (ab_attribute
) (AB_MODULE_PROCEDURE
, attr_bits
);
2258 if (attr
->oacc_declare_create
)
2259 MIO_NAME (ab_attribute
) (AB_OACC_DECLARE_CREATE
, attr_bits
);
2260 if (attr
->oacc_declare_copyin
)
2261 MIO_NAME (ab_attribute
) (AB_OACC_DECLARE_COPYIN
, attr_bits
);
2262 if (attr
->oacc_declare_deviceptr
)
2263 MIO_NAME (ab_attribute
) (AB_OACC_DECLARE_DEVICEPTR
, attr_bits
);
2264 if (attr
->oacc_declare_device_resident
)
2265 MIO_NAME (ab_attribute
) (AB_OACC_DECLARE_DEVICE_RESIDENT
, attr_bits
);
2266 if (attr
->oacc_declare_link
)
2267 MIO_NAME (ab_attribute
) (AB_OACC_DECLARE_LINK
, attr_bits
);
2268 if (attr
->omp_declare_target_link
)
2269 MIO_NAME (ab_attribute
) (AB_OMP_DECLARE_TARGET_LINK
, attr_bits
);
2271 MIO_NAME (ab_attribute
) (AB_PDT_KIND
, attr_bits
);
2273 MIO_NAME (ab_attribute
) (AB_PDT_LEN
, attr_bits
);
2275 MIO_NAME (ab_attribute
) (AB_PDT_TYPE
, attr_bits
);
2276 if (attr
->pdt_template
)
2277 MIO_NAME (ab_attribute
) (AB_PDT_TEMPLATE
, attr_bits
);
2278 if (attr
->pdt_array
)
2279 MIO_NAME (ab_attribute
) (AB_PDT_ARRAY
, attr_bits
);
2280 if (attr
->pdt_string
)
2281 MIO_NAME (ab_attribute
) (AB_PDT_STRING
, attr_bits
);
2291 if (t
== ATOM_RPAREN
)
2294 bad_module ("Expected attribute bit name");
2296 switch ((ab_attribute
) find_enum (attr_bits
))
2298 case AB_ALLOCATABLE
:
2299 attr
->allocatable
= 1;
2302 attr
->artificial
= 1;
2304 case AB_ASYNCHRONOUS
:
2305 attr
->asynchronous
= 1;
2308 attr
->dimension
= 1;
2310 case AB_CODIMENSION
:
2311 attr
->codimension
= 1;
2314 attr
->contiguous
= 1;
2320 attr
->intrinsic
= 1;
2328 case AB_CLASS_POINTER
:
2329 attr
->class_pointer
= 1;
2332 attr
->is_protected
= 1;
2338 attr
->volatile_
= 1;
2343 case AB_THREADPRIVATE
:
2344 attr
->threadprivate
= 1;
2355 case AB_IN_NAMELIST
:
2356 attr
->in_namelist
= 1;
2359 attr
->in_common
= 1;
2365 attr
->subroutine
= 1;
2377 attr
->elemental
= 1;
2382 case AB_IMPLICIT_PURE
:
2383 attr
->implicit_pure
= 1;
2385 case AB_UNLIMITED_POLY
:
2386 attr
->unlimited_polymorphic
= 1;
2389 attr
->recursive
= 1;
2391 case AB_ALWAYS_EXPLICIT
:
2392 attr
->always_explicit
= 1;
2394 case AB_CRAY_POINTER
:
2395 attr
->cray_pointer
= 1;
2397 case AB_CRAY_POINTEE
:
2398 attr
->cray_pointee
= 1;
2401 attr
->is_bind_c
= 1;
2403 case AB_IS_C_INTEROP
:
2404 attr
->is_c_interop
= 1;
2410 attr
->alloc_comp
= 1;
2412 case AB_COARRAY_COMP
:
2413 attr
->coarray_comp
= 1;
2416 attr
->lock_comp
= 1;
2419 attr
->event_comp
= 1;
2421 case AB_POINTER_COMP
:
2422 attr
->pointer_comp
= 1;
2424 case AB_PROC_POINTER_COMP
:
2425 attr
->proc_pointer_comp
= 1;
2427 case AB_PRIVATE_COMP
:
2428 attr
->private_comp
= 1;
2431 attr
->zero_comp
= 1;
2437 attr
->procedure
= 1;
2439 case AB_PROC_POINTER
:
2440 attr
->proc_pointer
= 1;
2448 case AB_OMP_DECLARE_TARGET
:
2449 attr
->omp_declare_target
= 1;
2451 case AB_OMP_DECLARE_TARGET_LINK
:
2452 attr
->omp_declare_target_link
= 1;
2454 case AB_ARRAY_OUTER_DEPENDENCY
:
2455 attr
->array_outer_dependency
=1;
2457 case AB_MODULE_PROCEDURE
:
2458 attr
->module_procedure
=1;
2460 case AB_OACC_DECLARE_CREATE
:
2461 attr
->oacc_declare_create
= 1;
2463 case AB_OACC_DECLARE_COPYIN
:
2464 attr
->oacc_declare_copyin
= 1;
2466 case AB_OACC_DECLARE_DEVICEPTR
:
2467 attr
->oacc_declare_deviceptr
= 1;
2469 case AB_OACC_DECLARE_DEVICE_RESIDENT
:
2470 attr
->oacc_declare_device_resident
= 1;
2472 case AB_OACC_DECLARE_LINK
:
2473 attr
->oacc_declare_link
= 1;
2484 case AB_PDT_TEMPLATE
:
2485 attr
->pdt_template
= 1;
2488 attr
->pdt_array
= 1;
2491 attr
->pdt_string
= 1;
2499 static const mstring bt_types
[] = {
2500 minit ("INTEGER", BT_INTEGER
),
2501 minit ("REAL", BT_REAL
),
2502 minit ("COMPLEX", BT_COMPLEX
),
2503 minit ("LOGICAL", BT_LOGICAL
),
2504 minit ("CHARACTER", BT_CHARACTER
),
2505 minit ("UNION", BT_UNION
),
2506 minit ("DERIVED", BT_DERIVED
),
2507 minit ("CLASS", BT_CLASS
),
2508 minit ("PROCEDURE", BT_PROCEDURE
),
2509 minit ("UNKNOWN", BT_UNKNOWN
),
2510 minit ("VOID", BT_VOID
),
2511 minit ("ASSUMED", BT_ASSUMED
),
2517 mio_charlen (gfc_charlen
**clp
)
2523 if (iomode
== IO_OUTPUT
)
2527 mio_expr (&cl
->length
);
2531 if (peek_atom () != ATOM_RPAREN
)
2533 cl
= gfc_new_charlen (gfc_current_ns
, NULL
);
2534 mio_expr (&cl
->length
);
2543 /* See if a name is a generated name. */
2546 check_unique_name (const char *name
)
2548 return *name
== '@';
2553 mio_typespec (gfc_typespec
*ts
)
2557 ts
->type
= MIO_NAME (bt
) (ts
->type
, bt_types
);
2559 if (!gfc_bt_struct (ts
->type
) && ts
->type
!= BT_CLASS
)
2560 mio_integer (&ts
->kind
);
2562 mio_symbol_ref (&ts
->u
.derived
);
2564 mio_symbol_ref (&ts
->interface
);
2566 /* Add info for C interop and is_iso_c. */
2567 mio_integer (&ts
->is_c_interop
);
2568 mio_integer (&ts
->is_iso_c
);
2570 /* If the typespec is for an identifier either from iso_c_binding, or
2571 a constant that was initialized to an identifier from it, use the
2572 f90_type. Otherwise, use the ts->type, since it shouldn't matter. */
2574 ts
->f90_type
= MIO_NAME (bt
) (ts
->f90_type
, bt_types
);
2576 ts
->f90_type
= MIO_NAME (bt
) (ts
->type
, bt_types
);
2578 if (ts
->type
!= BT_CHARACTER
)
2580 /* ts->u.cl is only valid for BT_CHARACTER. */
2585 mio_charlen (&ts
->u
.cl
);
2587 /* So as not to disturb the existing API, use an ATOM_NAME to
2588 transmit deferred characteristic for characters (F2003). */
2589 if (iomode
== IO_OUTPUT
)
2591 if (ts
->type
== BT_CHARACTER
&& ts
->deferred
)
2592 write_atom (ATOM_NAME
, "DEFERRED_CL");
2594 else if (peek_atom () != ATOM_RPAREN
)
2596 if (parse_atom () != ATOM_NAME
)
2597 bad_module ("Expected string");
2605 static const mstring array_spec_types
[] = {
2606 minit ("EXPLICIT", AS_EXPLICIT
),
2607 minit ("ASSUMED_RANK", AS_ASSUMED_RANK
),
2608 minit ("ASSUMED_SHAPE", AS_ASSUMED_SHAPE
),
2609 minit ("DEFERRED", AS_DEFERRED
),
2610 minit ("ASSUMED_SIZE", AS_ASSUMED_SIZE
),
2616 mio_array_spec (gfc_array_spec
**asp
)
2623 if (iomode
== IO_OUTPUT
)
2631 /* mio_integer expects nonnegative values. */
2632 rank
= as
->rank
> 0 ? as
->rank
: 0;
2633 mio_integer (&rank
);
2637 if (peek_atom () == ATOM_RPAREN
)
2643 *asp
= as
= gfc_get_array_spec ();
2644 mio_integer (&as
->rank
);
2647 mio_integer (&as
->corank
);
2648 as
->type
= MIO_NAME (array_type
) (as
->type
, array_spec_types
);
2650 if (iomode
== IO_INPUT
&& as
->type
== AS_ASSUMED_RANK
)
2652 if (iomode
== IO_INPUT
&& as
->corank
)
2653 as
->cotype
= (as
->type
== AS_DEFERRED
) ? AS_DEFERRED
: AS_EXPLICIT
;
2655 if (as
->rank
+ as
->corank
> 0)
2656 for (i
= 0; i
< as
->rank
+ as
->corank
; i
++)
2658 mio_expr (&as
->lower
[i
]);
2659 mio_expr (&as
->upper
[i
]);
2667 /* Given a pointer to an array reference structure (which lives in a
2668 gfc_ref structure), find the corresponding array specification
2669 structure. Storing the pointer in the ref structure doesn't quite
2670 work when loading from a module. Generating code for an array
2671 reference also needs more information than just the array spec. */
2673 static const mstring array_ref_types
[] = {
2674 minit ("FULL", AR_FULL
),
2675 minit ("ELEMENT", AR_ELEMENT
),
2676 minit ("SECTION", AR_SECTION
),
2682 mio_array_ref (gfc_array_ref
*ar
)
2687 ar
->type
= MIO_NAME (ar_type
) (ar
->type
, array_ref_types
);
2688 mio_integer (&ar
->dimen
);
2696 for (i
= 0; i
< ar
->dimen
; i
++)
2697 mio_expr (&ar
->start
[i
]);
2702 for (i
= 0; i
< ar
->dimen
; i
++)
2704 mio_expr (&ar
->start
[i
]);
2705 mio_expr (&ar
->end
[i
]);
2706 mio_expr (&ar
->stride
[i
]);
2712 gfc_internal_error ("mio_array_ref(): Unknown array ref");
2715 /* Unfortunately, ar->dimen_type is an anonymous enumerated type so
2716 we can't call mio_integer directly. Instead loop over each element
2717 and cast it to/from an integer. */
2718 if (iomode
== IO_OUTPUT
)
2720 for (i
= 0; i
< ar
->dimen
; i
++)
2722 int tmp
= (int)ar
->dimen_type
[i
];
2723 write_atom (ATOM_INTEGER
, &tmp
);
2728 for (i
= 0; i
< ar
->dimen
; i
++)
2730 require_atom (ATOM_INTEGER
);
2731 ar
->dimen_type
[i
] = (enum gfc_array_ref_dimen_type
) atom_int
;
2735 if (iomode
== IO_INPUT
)
2737 ar
->where
= gfc_current_locus
;
2739 for (i
= 0; i
< ar
->dimen
; i
++)
2740 ar
->c_where
[i
] = gfc_current_locus
;
2747 /* Saves or restores a pointer. The pointer is converted back and
2748 forth from an integer. We return the pointer_info pointer so that
2749 the caller can take additional action based on the pointer type. */
2751 static pointer_info
*
2752 mio_pointer_ref (void *gp
)
2756 if (iomode
== IO_OUTPUT
)
2758 p
= get_pointer (*((char **) gp
));
2759 write_atom (ATOM_INTEGER
, &p
->integer
);
2763 require_atom (ATOM_INTEGER
);
2764 p
= add_fixup (atom_int
, gp
);
2771 /* Save and load references to components that occur within
2772 expressions. We have to describe these references by a number and
2773 by name. The number is necessary for forward references during
2774 reading, and the name is necessary if the symbol already exists in
2775 the namespace and is not loaded again. */
2778 mio_component_ref (gfc_component
**cp
)
2782 p
= mio_pointer_ref (cp
);
2783 if (p
->type
== P_UNKNOWN
)
2784 p
->type
= P_COMPONENT
;
2788 static void mio_namespace_ref (gfc_namespace
**nsp
);
2789 static void mio_formal_arglist (gfc_formal_arglist
**formal
);
2790 static void mio_typebound_proc (gfc_typebound_proc
** proc
);
2791 static void mio_actual_arglist (gfc_actual_arglist
**ap
, bool pdt
);
2794 mio_component (gfc_component
*c
, int vtype
)
2801 if (iomode
== IO_OUTPUT
)
2803 p
= get_pointer (c
);
2804 mio_integer (&p
->integer
);
2809 p
= get_integer (n
);
2810 associate_integer_pointer (p
, c
);
2813 if (p
->type
== P_UNKNOWN
)
2814 p
->type
= P_COMPONENT
;
2816 mio_pool_string (&c
->name
);
2817 mio_typespec (&c
->ts
);
2818 mio_array_spec (&c
->as
);
2820 /* PDT templates store the expression for the kind of a component here. */
2821 mio_expr (&c
->kind_expr
);
2823 /* PDT types store the component specification list here. */
2824 mio_actual_arglist (&c
->param_list
, true);
2826 mio_symbol_attribute (&c
->attr
);
2827 if (c
->ts
.type
== BT_CLASS
)
2828 c
->attr
.class_ok
= 1;
2829 c
->attr
.access
= MIO_NAME (gfc_access
) (c
->attr
.access
, access_types
);
2831 if (!vtype
|| strcmp (c
->name
, "_final") == 0
2832 || strcmp (c
->name
, "_hash") == 0)
2833 mio_expr (&c
->initializer
);
2835 if (c
->attr
.proc_pointer
)
2836 mio_typebound_proc (&c
->tb
);
2843 mio_component_list (gfc_component
**cp
, int vtype
)
2845 gfc_component
*c
, *tail
;
2849 if (iomode
== IO_OUTPUT
)
2851 for (c
= *cp
; c
; c
= c
->next
)
2852 mio_component (c
, vtype
);
2861 if (peek_atom () == ATOM_RPAREN
)
2864 c
= gfc_get_component ();
2865 mio_component (c
, vtype
);
2881 mio_actual_arg (gfc_actual_arglist
*a
, bool pdt
)
2884 mio_pool_string (&a
->name
);
2885 mio_expr (&a
->expr
);
2887 mio_integer ((int *)&a
->spec_type
);
2893 mio_actual_arglist (gfc_actual_arglist
**ap
, bool pdt
)
2895 gfc_actual_arglist
*a
, *tail
;
2899 if (iomode
== IO_OUTPUT
)
2901 for (a
= *ap
; a
; a
= a
->next
)
2902 mio_actual_arg (a
, pdt
);
2911 if (peek_atom () != ATOM_LPAREN
)
2914 a
= gfc_get_actual_arglist ();
2922 mio_actual_arg (a
, pdt
);
2930 /* Read and write formal argument lists. */
2933 mio_formal_arglist (gfc_formal_arglist
**formal
)
2935 gfc_formal_arglist
*f
, *tail
;
2939 if (iomode
== IO_OUTPUT
)
2941 for (f
= *formal
; f
; f
= f
->next
)
2942 mio_symbol_ref (&f
->sym
);
2946 *formal
= tail
= NULL
;
2948 while (peek_atom () != ATOM_RPAREN
)
2950 f
= gfc_get_formal_arglist ();
2951 mio_symbol_ref (&f
->sym
);
2953 if (*formal
== NULL
)
2966 /* Save or restore a reference to a symbol node. */
2969 mio_symbol_ref (gfc_symbol
**symp
)
2973 p
= mio_pointer_ref (symp
);
2974 if (p
->type
== P_UNKNOWN
)
2977 if (iomode
== IO_OUTPUT
)
2979 if (p
->u
.wsym
.state
== UNREFERENCED
)
2980 p
->u
.wsym
.state
= NEEDS_WRITE
;
2984 if (p
->u
.rsym
.state
== UNUSED
)
2985 p
->u
.rsym
.state
= NEEDED
;
2991 /* Save or restore a reference to a symtree node. */
2994 mio_symtree_ref (gfc_symtree
**stp
)
2999 if (iomode
== IO_OUTPUT
)
3000 mio_symbol_ref (&(*stp
)->n
.sym
);
3003 require_atom (ATOM_INTEGER
);
3004 p
= get_integer (atom_int
);
3006 /* An unused equivalence member; make a symbol and a symtree
3008 if (in_load_equiv
&& p
->u
.rsym
.symtree
== NULL
)
3010 /* Since this is not used, it must have a unique name. */
3011 p
->u
.rsym
.symtree
= gfc_get_unique_symtree (gfc_current_ns
);
3013 /* Make the symbol. */
3014 if (p
->u
.rsym
.sym
== NULL
)
3016 p
->u
.rsym
.sym
= gfc_new_symbol (p
->u
.rsym
.true_name
,
3018 p
->u
.rsym
.sym
->module
= gfc_get_string ("%s", p
->u
.rsym
.module
);
3021 p
->u
.rsym
.symtree
->n
.sym
= p
->u
.rsym
.sym
;
3022 p
->u
.rsym
.symtree
->n
.sym
->refs
++;
3023 p
->u
.rsym
.referenced
= 1;
3025 /* If the symbol is PRIVATE and in COMMON, load_commons will
3026 generate a fixup symbol, which must be associated. */
3028 resolve_fixups (p
->fixup
, p
->u
.rsym
.sym
);
3032 if (p
->type
== P_UNKNOWN
)
3035 if (p
->u
.rsym
.state
== UNUSED
)
3036 p
->u
.rsym
.state
= NEEDED
;
3038 if (p
->u
.rsym
.symtree
!= NULL
)
3040 *stp
= p
->u
.rsym
.symtree
;
3044 f
= XCNEW (fixup_t
);
3046 f
->next
= p
->u
.rsym
.stfixup
;
3047 p
->u
.rsym
.stfixup
= f
;
3049 f
->pointer
= (void **) stp
;
3056 mio_iterator (gfc_iterator
**ip
)
3062 if (iomode
== IO_OUTPUT
)
3069 if (peek_atom () == ATOM_RPAREN
)
3075 *ip
= gfc_get_iterator ();
3080 mio_expr (&iter
->var
);
3081 mio_expr (&iter
->start
);
3082 mio_expr (&iter
->end
);
3083 mio_expr (&iter
->step
);
3091 mio_constructor (gfc_constructor_base
*cp
)
3097 if (iomode
== IO_OUTPUT
)
3099 for (c
= gfc_constructor_first (*cp
); c
; c
= gfc_constructor_next (c
))
3102 mio_expr (&c
->expr
);
3103 mio_iterator (&c
->iterator
);
3109 while (peek_atom () != ATOM_RPAREN
)
3111 c
= gfc_constructor_append_expr (cp
, NULL
, NULL
);
3114 mio_expr (&c
->expr
);
3115 mio_iterator (&c
->iterator
);
3124 static const mstring ref_types
[] = {
3125 minit ("ARRAY", REF_ARRAY
),
3126 minit ("COMPONENT", REF_COMPONENT
),
3127 minit ("SUBSTRING", REF_SUBSTRING
),
3133 mio_ref (gfc_ref
**rp
)
3140 r
->type
= MIO_NAME (ref_type
) (r
->type
, ref_types
);
3145 mio_array_ref (&r
->u
.ar
);
3149 mio_symbol_ref (&r
->u
.c
.sym
);
3150 mio_component_ref (&r
->u
.c
.component
);
3154 mio_expr (&r
->u
.ss
.start
);
3155 mio_expr (&r
->u
.ss
.end
);
3156 mio_charlen (&r
->u
.ss
.length
);
3165 mio_ref_list (gfc_ref
**rp
)
3167 gfc_ref
*ref
, *head
, *tail
;
3171 if (iomode
== IO_OUTPUT
)
3173 for (ref
= *rp
; ref
; ref
= ref
->next
)
3180 while (peek_atom () != ATOM_RPAREN
)
3183 head
= tail
= gfc_get_ref ();
3186 tail
->next
= gfc_get_ref ();
3200 /* Read and write an integer value. */
3203 mio_gmp_integer (mpz_t
*integer
)
3207 if (iomode
== IO_INPUT
)
3209 if (parse_atom () != ATOM_STRING
)
3210 bad_module ("Expected integer string");
3212 mpz_init (*integer
);
3213 if (mpz_set_str (*integer
, atom_string
, 10))
3214 bad_module ("Error converting integer");
3220 p
= mpz_get_str (NULL
, 10, *integer
);
3221 write_atom (ATOM_STRING
, p
);
3228 mio_gmp_real (mpfr_t
*real
)
3233 if (iomode
== IO_INPUT
)
3235 if (parse_atom () != ATOM_STRING
)
3236 bad_module ("Expected real string");
3239 mpfr_set_str (*real
, atom_string
, 16, GFC_RND_MODE
);
3244 p
= mpfr_get_str (NULL
, &exponent
, 16, 0, *real
, GFC_RND_MODE
);
3246 if (mpfr_nan_p (*real
) || mpfr_inf_p (*real
))
3248 write_atom (ATOM_STRING
, p
);
3253 atom_string
= XCNEWVEC (char, strlen (p
) + 20);
3255 sprintf (atom_string
, "0.%s@%ld", p
, exponent
);
3257 /* Fix negative numbers. */
3258 if (atom_string
[2] == '-')
3260 atom_string
[0] = '-';
3261 atom_string
[1] = '0';
3262 atom_string
[2] = '.';
3265 write_atom (ATOM_STRING
, atom_string
);
3273 /* Save and restore the shape of an array constructor. */
3276 mio_shape (mpz_t
**pshape
, int rank
)
3282 /* A NULL shape is represented by (). */
3285 if (iomode
== IO_OUTPUT
)
3297 if (t
== ATOM_RPAREN
)
3304 shape
= gfc_get_shape (rank
);
3308 for (n
= 0; n
< rank
; n
++)
3309 mio_gmp_integer (&shape
[n
]);
3315 static const mstring expr_types
[] = {
3316 minit ("OP", EXPR_OP
),
3317 minit ("FUNCTION", EXPR_FUNCTION
),
3318 minit ("CONSTANT", EXPR_CONSTANT
),
3319 minit ("VARIABLE", EXPR_VARIABLE
),
3320 minit ("SUBSTRING", EXPR_SUBSTRING
),
3321 minit ("STRUCTURE", EXPR_STRUCTURE
),
3322 minit ("ARRAY", EXPR_ARRAY
),
3323 minit ("NULL", EXPR_NULL
),
3324 minit ("COMPCALL", EXPR_COMPCALL
),
3328 /* INTRINSIC_ASSIGN is missing because it is used as an index for
3329 generic operators, not in expressions. INTRINSIC_USER is also
3330 replaced by the correct function name by the time we see it. */
3332 static const mstring intrinsics
[] =
3334 minit ("UPLUS", INTRINSIC_UPLUS
),
3335 minit ("UMINUS", INTRINSIC_UMINUS
),
3336 minit ("PLUS", INTRINSIC_PLUS
),
3337 minit ("MINUS", INTRINSIC_MINUS
),
3338 minit ("TIMES", INTRINSIC_TIMES
),
3339 minit ("DIVIDE", INTRINSIC_DIVIDE
),
3340 minit ("POWER", INTRINSIC_POWER
),
3341 minit ("CONCAT", INTRINSIC_CONCAT
),
3342 minit ("AND", INTRINSIC_AND
),
3343 minit ("OR", INTRINSIC_OR
),
3344 minit ("EQV", INTRINSIC_EQV
),
3345 minit ("NEQV", INTRINSIC_NEQV
),
3346 minit ("EQ_SIGN", INTRINSIC_EQ
),
3347 minit ("EQ", INTRINSIC_EQ_OS
),
3348 minit ("NE_SIGN", INTRINSIC_NE
),
3349 minit ("NE", INTRINSIC_NE_OS
),
3350 minit ("GT_SIGN", INTRINSIC_GT
),
3351 minit ("GT", INTRINSIC_GT_OS
),
3352 minit ("GE_SIGN", INTRINSIC_GE
),
3353 minit ("GE", INTRINSIC_GE_OS
),
3354 minit ("LT_SIGN", INTRINSIC_LT
),
3355 minit ("LT", INTRINSIC_LT_OS
),
3356 minit ("LE_SIGN", INTRINSIC_LE
),
3357 minit ("LE", INTRINSIC_LE_OS
),
3358 minit ("NOT", INTRINSIC_NOT
),
3359 minit ("PARENTHESES", INTRINSIC_PARENTHESES
),
3360 minit ("USER", INTRINSIC_USER
),
3365 /* Remedy a couple of situations where the gfc_expr's can be defective. */
3368 fix_mio_expr (gfc_expr
*e
)
3370 gfc_symtree
*ns_st
= NULL
;
3373 if (iomode
!= IO_OUTPUT
)
3378 /* If this is a symtree for a symbol that came from a contained module
3379 namespace, it has a unique name and we should look in the current
3380 namespace to see if the required, non-contained symbol is available
3381 yet. If so, the latter should be written. */
3382 if (e
->symtree
->n
.sym
&& check_unique_name (e
->symtree
->name
))
3384 const char *name
= e
->symtree
->n
.sym
->name
;
3385 if (gfc_fl_struct (e
->symtree
->n
.sym
->attr
.flavor
))
3386 name
= gfc_dt_upper_string (name
);
3387 ns_st
= gfc_find_symtree (gfc_current_ns
->sym_root
, name
);
3390 /* On the other hand, if the existing symbol is the module name or the
3391 new symbol is a dummy argument, do not do the promotion. */
3392 if (ns_st
&& ns_st
->n
.sym
3393 && ns_st
->n
.sym
->attr
.flavor
!= FL_MODULE
3394 && !e
->symtree
->n
.sym
->attr
.dummy
)
3397 else if (e
->expr_type
== EXPR_FUNCTION
3398 && (e
->value
.function
.name
|| e
->value
.function
.isym
))
3402 /* In some circumstances, a function used in an initialization
3403 expression, in one use associated module, can fail to be
3404 coupled to its symtree when used in a specification
3405 expression in another module. */
3406 fname
= e
->value
.function
.esym
? e
->value
.function
.esym
->name
3407 : e
->value
.function
.isym
->name
;
3408 e
->symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, fname
);
3413 /* This is probably a reference to a private procedure from another
3414 module. To prevent a segfault, make a generic with no specific
3415 instances. If this module is used, without the required
3416 specific coming from somewhere, the appropriate error message
3418 gfc_get_symbol (fname
, gfc_current_ns
, &sym
);
3419 sym
->attr
.flavor
= FL_PROCEDURE
;
3420 sym
->attr
.generic
= 1;
3421 e
->symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, fname
);
3422 gfc_commit_symbol (sym
);
3427 /* Read and write expressions. The form "()" is allowed to indicate a
3431 mio_expr (gfc_expr
**ep
)
3439 if (iomode
== IO_OUTPUT
)
3448 MIO_NAME (expr_t
) (e
->expr_type
, expr_types
);
3453 if (t
== ATOM_RPAREN
)
3460 bad_module ("Expected expression type");
3462 e
= *ep
= gfc_get_expr ();
3463 e
->where
= gfc_current_locus
;
3464 e
->expr_type
= (expr_t
) find_enum (expr_types
);
3467 mio_typespec (&e
->ts
);
3468 mio_integer (&e
->rank
);
3472 switch (e
->expr_type
)
3476 = MIO_NAME (gfc_intrinsic_op
) (e
->value
.op
.op
, intrinsics
);
3478 switch (e
->value
.op
.op
)
3480 case INTRINSIC_UPLUS
:
3481 case INTRINSIC_UMINUS
:
3483 case INTRINSIC_PARENTHESES
:
3484 mio_expr (&e
->value
.op
.op1
);
3487 case INTRINSIC_PLUS
:
3488 case INTRINSIC_MINUS
:
3489 case INTRINSIC_TIMES
:
3490 case INTRINSIC_DIVIDE
:
3491 case INTRINSIC_POWER
:
3492 case INTRINSIC_CONCAT
:
3496 case INTRINSIC_NEQV
:
3498 case INTRINSIC_EQ_OS
:
3500 case INTRINSIC_NE_OS
:
3502 case INTRINSIC_GT_OS
:
3504 case INTRINSIC_GE_OS
:
3506 case INTRINSIC_LT_OS
:
3508 case INTRINSIC_LE_OS
:
3509 mio_expr (&e
->value
.op
.op1
);
3510 mio_expr (&e
->value
.op
.op2
);
3513 case INTRINSIC_USER
:
3514 /* INTRINSIC_USER should not appear in resolved expressions,
3515 though for UDRs we need to stream unresolved ones. */
3516 if (iomode
== IO_OUTPUT
)
3517 write_atom (ATOM_STRING
, e
->value
.op
.uop
->name
);
3520 char *name
= read_string ();
3521 const char *uop_name
= find_use_name (name
, true);
3522 if (uop_name
== NULL
)
3524 size_t len
= strlen (name
);
3525 char *name2
= XCNEWVEC (char, len
+ 2);
3526 memcpy (name2
, name
, len
);
3528 name2
[len
+ 1] = '\0';
3530 uop_name
= name
= name2
;
3532 e
->value
.op
.uop
= gfc_get_uop (uop_name
);
3535 mio_expr (&e
->value
.op
.op1
);
3536 mio_expr (&e
->value
.op
.op2
);
3540 bad_module ("Bad operator");
3546 mio_symtree_ref (&e
->symtree
);
3547 mio_actual_arglist (&e
->value
.function
.actual
, false);
3549 if (iomode
== IO_OUTPUT
)
3551 e
->value
.function
.name
3552 = mio_allocated_string (e
->value
.function
.name
);
3553 if (e
->value
.function
.esym
)
3557 else if (e
->value
.function
.isym
== NULL
)
3561 mio_integer (&flag
);
3565 mio_symbol_ref (&e
->value
.function
.esym
);
3568 mio_ref_list (&e
->ref
);
3573 write_atom (ATOM_STRING
, e
->value
.function
.isym
->name
);
3578 require_atom (ATOM_STRING
);
3579 if (atom_string
[0] == '\0')
3580 e
->value
.function
.name
= NULL
;
3582 e
->value
.function
.name
= gfc_get_string ("%s", atom_string
);
3585 mio_integer (&flag
);
3589 mio_symbol_ref (&e
->value
.function
.esym
);
3592 mio_ref_list (&e
->ref
);
3597 require_atom (ATOM_STRING
);
3598 e
->value
.function
.isym
= gfc_find_function (atom_string
);
3606 mio_symtree_ref (&e
->symtree
);
3607 mio_ref_list (&e
->ref
);
3610 case EXPR_SUBSTRING
:
3611 e
->value
.character
.string
3612 = CONST_CAST (gfc_char_t
*,
3613 mio_allocated_wide_string (e
->value
.character
.string
,
3614 e
->value
.character
.length
));
3615 mio_ref_list (&e
->ref
);
3618 case EXPR_STRUCTURE
:
3620 mio_constructor (&e
->value
.constructor
);
3621 mio_shape (&e
->shape
, e
->rank
);
3628 mio_gmp_integer (&e
->value
.integer
);
3632 gfc_set_model_kind (e
->ts
.kind
);
3633 mio_gmp_real (&e
->value
.real
);
3637 gfc_set_model_kind (e
->ts
.kind
);
3638 mio_gmp_real (&mpc_realref (e
->value
.complex));
3639 mio_gmp_real (&mpc_imagref (e
->value
.complex));
3643 mio_integer (&e
->value
.logical
);
3647 mio_integer (&e
->value
.character
.length
);
3648 e
->value
.character
.string
3649 = CONST_CAST (gfc_char_t
*,
3650 mio_allocated_wide_string (e
->value
.character
.string
,
3651 e
->value
.character
.length
));
3655 bad_module ("Bad type in constant expression");
3669 /* PDT types store the expression specification list here. */
3670 mio_actual_arglist (&e
->param_list
, true);
3676 /* Read and write namelists. */
3679 mio_namelist (gfc_symbol
*sym
)
3681 gfc_namelist
*n
, *m
;
3682 const char *check_name
;
3686 if (iomode
== IO_OUTPUT
)
3688 for (n
= sym
->namelist
; n
; n
= n
->next
)
3689 mio_symbol_ref (&n
->sym
);
3693 /* This departure from the standard is flagged as an error.
3694 It does, in fact, work correctly. TODO: Allow it
3696 if (sym
->attr
.flavor
== FL_NAMELIST
)
3698 check_name
= find_use_name (sym
->name
, false);
3699 if (check_name
&& strcmp (check_name
, sym
->name
) != 0)
3700 gfc_error ("Namelist %s cannot be renamed by USE "
3701 "association to %s", sym
->name
, check_name
);
3705 while (peek_atom () != ATOM_RPAREN
)
3707 n
= gfc_get_namelist ();
3708 mio_symbol_ref (&n
->sym
);
3710 if (sym
->namelist
== NULL
)
3717 sym
->namelist_tail
= m
;
3724 /* Save/restore lists of gfc_interface structures. When loading an
3725 interface, we are really appending to the existing list of
3726 interfaces. Checking for duplicate and ambiguous interfaces has to
3727 be done later when all symbols have been loaded. */
3730 mio_interface_rest (gfc_interface
**ip
)
3732 gfc_interface
*tail
, *p
;
3733 pointer_info
*pi
= NULL
;
3735 if (iomode
== IO_OUTPUT
)
3738 for (p
= *ip
; p
; p
= p
->next
)
3739 mio_symbol_ref (&p
->sym
);
3754 if (peek_atom () == ATOM_RPAREN
)
3757 p
= gfc_get_interface ();
3758 p
->where
= gfc_current_locus
;
3759 pi
= mio_symbol_ref (&p
->sym
);
3775 /* Save/restore a nameless operator interface. */
3778 mio_interface (gfc_interface
**ip
)
3781 mio_interface_rest (ip
);
3785 /* Save/restore a named operator interface. */
3788 mio_symbol_interface (const char **name
, const char **module
,
3792 mio_pool_string (name
);
3793 mio_pool_string (module
);
3794 mio_interface_rest (ip
);
3799 mio_namespace_ref (gfc_namespace
**nsp
)
3804 p
= mio_pointer_ref (nsp
);
3806 if (p
->type
== P_UNKNOWN
)
3807 p
->type
= P_NAMESPACE
;
3809 if (iomode
== IO_INPUT
&& p
->integer
!= 0)
3811 ns
= (gfc_namespace
*) p
->u
.pointer
;
3814 ns
= gfc_get_namespace (NULL
, 0);
3815 associate_integer_pointer (p
, ns
);
3823 /* Save/restore the f2k_derived namespace of a derived-type symbol. */
3825 static gfc_namespace
* current_f2k_derived
;
3828 mio_typebound_proc (gfc_typebound_proc
** proc
)
3831 int overriding_flag
;
3833 if (iomode
== IO_INPUT
)
3835 *proc
= gfc_get_typebound_proc (NULL
);
3836 (*proc
)->where
= gfc_current_locus
;
3842 (*proc
)->access
= MIO_NAME (gfc_access
) ((*proc
)->access
, access_types
);
3844 /* IO the NON_OVERRIDABLE/DEFERRED combination. */
3845 gcc_assert (!((*proc
)->deferred
&& (*proc
)->non_overridable
));
3846 overriding_flag
= ((*proc
)->deferred
<< 1) | (*proc
)->non_overridable
;
3847 overriding_flag
= mio_name (overriding_flag
, binding_overriding
);
3848 (*proc
)->deferred
= ((overriding_flag
& 2) != 0);
3849 (*proc
)->non_overridable
= ((overriding_flag
& 1) != 0);
3850 gcc_assert (!((*proc
)->deferred
&& (*proc
)->non_overridable
));
3852 (*proc
)->nopass
= mio_name ((*proc
)->nopass
, binding_passing
);
3853 (*proc
)->is_generic
= mio_name ((*proc
)->is_generic
, binding_generic
);
3854 (*proc
)->ppc
= mio_name((*proc
)->ppc
, binding_ppc
);
3856 mio_pool_string (&((*proc
)->pass_arg
));
3858 flag
= (int) (*proc
)->pass_arg_num
;
3859 mio_integer (&flag
);
3860 (*proc
)->pass_arg_num
= (unsigned) flag
;
3862 if ((*proc
)->is_generic
)
3869 if (iomode
== IO_OUTPUT
)
3870 for (g
= (*proc
)->u
.generic
; g
; g
= g
->next
)
3872 iop
= (int) g
->is_operator
;
3874 mio_allocated_string (g
->specific_st
->name
);
3878 (*proc
)->u
.generic
= NULL
;
3879 while (peek_atom () != ATOM_RPAREN
)
3881 gfc_symtree
** sym_root
;
3883 g
= gfc_get_tbp_generic ();
3887 g
->is_operator
= (bool) iop
;
3889 require_atom (ATOM_STRING
);
3890 sym_root
= ¤t_f2k_derived
->tb_sym_root
;
3891 g
->specific_st
= gfc_get_tbp_symtree (sym_root
, atom_string
);
3894 g
->next
= (*proc
)->u
.generic
;
3895 (*proc
)->u
.generic
= g
;
3901 else if (!(*proc
)->ppc
)
3902 mio_symtree_ref (&(*proc
)->u
.specific
);
3907 /* Walker-callback function for this purpose. */
3909 mio_typebound_symtree (gfc_symtree
* st
)
3911 if (iomode
== IO_OUTPUT
&& !st
->n
.tb
)
3914 if (iomode
== IO_OUTPUT
)
3917 mio_allocated_string (st
->name
);
3919 /* For IO_INPUT, the above is done in mio_f2k_derived. */
3921 mio_typebound_proc (&st
->n
.tb
);
3925 /* IO a full symtree (in all depth). */
3927 mio_full_typebound_tree (gfc_symtree
** root
)
3931 if (iomode
== IO_OUTPUT
)
3932 gfc_traverse_symtree (*root
, &mio_typebound_symtree
);
3935 while (peek_atom () == ATOM_LPAREN
)
3941 require_atom (ATOM_STRING
);
3942 st
= gfc_get_tbp_symtree (root
, atom_string
);
3945 mio_typebound_symtree (st
);
3953 mio_finalizer (gfc_finalizer
**f
)
3955 if (iomode
== IO_OUTPUT
)
3958 gcc_assert ((*f
)->proc_tree
); /* Should already be resolved. */
3959 mio_symtree_ref (&(*f
)->proc_tree
);
3963 *f
= gfc_get_finalizer ();
3964 (*f
)->where
= gfc_current_locus
; /* Value should not matter. */
3967 mio_symtree_ref (&(*f
)->proc_tree
);
3968 (*f
)->proc_sym
= NULL
;
3973 mio_f2k_derived (gfc_namespace
*f2k
)
3975 current_f2k_derived
= f2k
;
3977 /* Handle the list of finalizer procedures. */
3979 if (iomode
== IO_OUTPUT
)
3982 for (f
= f2k
->finalizers
; f
; f
= f
->next
)
3987 f2k
->finalizers
= NULL
;
3988 while (peek_atom () != ATOM_RPAREN
)
3990 gfc_finalizer
*cur
= NULL
;
3991 mio_finalizer (&cur
);
3992 cur
->next
= f2k
->finalizers
;
3993 f2k
->finalizers
= cur
;
3998 /* Handle type-bound procedures. */
3999 mio_full_typebound_tree (&f2k
->tb_sym_root
);
4001 /* Type-bound user operators. */
4002 mio_full_typebound_tree (&f2k
->tb_uop_root
);
4004 /* Type-bound intrinsic operators. */
4006 if (iomode
== IO_OUTPUT
)
4009 for (op
= GFC_INTRINSIC_BEGIN
; op
!= GFC_INTRINSIC_END
; ++op
)
4011 gfc_intrinsic_op realop
;
4013 if (op
== INTRINSIC_USER
|| !f2k
->tb_op
[op
])
4017 realop
= (gfc_intrinsic_op
) op
;
4018 mio_intrinsic_op (&realop
);
4019 mio_typebound_proc (&f2k
->tb_op
[op
]);
4024 while (peek_atom () != ATOM_RPAREN
)
4026 gfc_intrinsic_op op
= GFC_INTRINSIC_BEGIN
; /* Silence GCC. */
4029 mio_intrinsic_op (&op
);
4030 mio_typebound_proc (&f2k
->tb_op
[op
]);
4037 mio_full_f2k_derived (gfc_symbol
*sym
)
4041 if (iomode
== IO_OUTPUT
)
4043 if (sym
->f2k_derived
)
4044 mio_f2k_derived (sym
->f2k_derived
);
4048 if (peek_atom () != ATOM_RPAREN
)
4052 sym
->f2k_derived
= gfc_get_namespace (NULL
, 0);
4054 /* PDT templates make use of the mechanisms for formal args
4055 and so the parameter symbols are stored in the formal
4056 namespace. Transfer the sym_root to f2k_derived and then
4057 free the formal namespace since it is uneeded. */
4058 if (sym
->attr
.pdt_template
&& sym
->formal
&& sym
->formal
->sym
)
4060 ns
= sym
->formal
->sym
->ns
;
4061 sym
->f2k_derived
->sym_root
= ns
->sym_root
;
4062 ns
->sym_root
= NULL
;
4064 gfc_free_namespace (ns
);
4068 mio_f2k_derived (sym
->f2k_derived
);
4071 gcc_assert (!sym
->f2k_derived
);
4077 static const mstring omp_declare_simd_clauses
[] =
4079 minit ("INBRANCH", 0),
4080 minit ("NOTINBRANCH", 1),
4081 minit ("SIMDLEN", 2),
4082 minit ("UNIFORM", 3),
4083 minit ("LINEAR", 4),
4084 minit ("ALIGNED", 5),
4088 /* Handle !$omp declare simd. */
4091 mio_omp_declare_simd (gfc_namespace
*ns
, gfc_omp_declare_simd
**odsp
)
4093 if (iomode
== IO_OUTPUT
)
4098 else if (peek_atom () != ATOM_LPAREN
)
4101 gfc_omp_declare_simd
*ods
= *odsp
;
4104 if (iomode
== IO_OUTPUT
)
4106 write_atom (ATOM_NAME
, "OMP_DECLARE_SIMD");
4109 gfc_omp_namelist
*n
;
4111 if (ods
->clauses
->inbranch
)
4112 mio_name (0, omp_declare_simd_clauses
);
4113 if (ods
->clauses
->notinbranch
)
4114 mio_name (1, omp_declare_simd_clauses
);
4115 if (ods
->clauses
->simdlen_expr
)
4117 mio_name (2, omp_declare_simd_clauses
);
4118 mio_expr (&ods
->clauses
->simdlen_expr
);
4120 for (n
= ods
->clauses
->lists
[OMP_LIST_UNIFORM
]; n
; n
= n
->next
)
4122 mio_name (3, omp_declare_simd_clauses
);
4123 mio_symbol_ref (&n
->sym
);
4125 for (n
= ods
->clauses
->lists
[OMP_LIST_LINEAR
]; n
; n
= n
->next
)
4127 mio_name (4, omp_declare_simd_clauses
);
4128 mio_symbol_ref (&n
->sym
);
4129 mio_expr (&n
->expr
);
4131 for (n
= ods
->clauses
->lists
[OMP_LIST_ALIGNED
]; n
; n
= n
->next
)
4133 mio_name (5, omp_declare_simd_clauses
);
4134 mio_symbol_ref (&n
->sym
);
4135 mio_expr (&n
->expr
);
4141 gfc_omp_namelist
**ptrs
[3] = { NULL
, NULL
, NULL
};
4143 require_atom (ATOM_NAME
);
4144 *odsp
= ods
= gfc_get_omp_declare_simd ();
4145 ods
->where
= gfc_current_locus
;
4146 ods
->proc_name
= ns
->proc_name
;
4147 if (peek_atom () == ATOM_NAME
)
4149 ods
->clauses
= gfc_get_omp_clauses ();
4150 ptrs
[0] = &ods
->clauses
->lists
[OMP_LIST_UNIFORM
];
4151 ptrs
[1] = &ods
->clauses
->lists
[OMP_LIST_LINEAR
];
4152 ptrs
[2] = &ods
->clauses
->lists
[OMP_LIST_ALIGNED
];
4154 while (peek_atom () == ATOM_NAME
)
4156 gfc_omp_namelist
*n
;
4157 int t
= mio_name (0, omp_declare_simd_clauses
);
4161 case 0: ods
->clauses
->inbranch
= true; break;
4162 case 1: ods
->clauses
->notinbranch
= true; break;
4163 case 2: mio_expr (&ods
->clauses
->simdlen_expr
); break;
4167 *ptrs
[t
- 3] = n
= gfc_get_omp_namelist ();
4168 ptrs
[t
- 3] = &n
->next
;
4169 mio_symbol_ref (&n
->sym
);
4171 mio_expr (&n
->expr
);
4177 mio_omp_declare_simd (ns
, &ods
->next
);
4183 static const mstring omp_declare_reduction_stmt
[] =
4185 minit ("ASSIGN", 0),
4192 mio_omp_udr_expr (gfc_omp_udr
*udr
, gfc_symbol
**sym1
, gfc_symbol
**sym2
,
4193 gfc_namespace
*ns
, bool is_initializer
)
4195 if (iomode
== IO_OUTPUT
)
4197 if ((*sym1
)->module
== NULL
)
4199 (*sym1
)->module
= module_name
;
4200 (*sym2
)->module
= module_name
;
4202 mio_symbol_ref (sym1
);
4203 mio_symbol_ref (sym2
);
4204 if (ns
->code
->op
== EXEC_ASSIGN
)
4206 mio_name (0, omp_declare_reduction_stmt
);
4207 mio_expr (&ns
->code
->expr1
);
4208 mio_expr (&ns
->code
->expr2
);
4213 mio_name (1, omp_declare_reduction_stmt
);
4214 mio_symtree_ref (&ns
->code
->symtree
);
4215 mio_actual_arglist (&ns
->code
->ext
.actual
, false);
4217 flag
= ns
->code
->resolved_isym
!= NULL
;
4218 mio_integer (&flag
);
4220 write_atom (ATOM_STRING
, ns
->code
->resolved_isym
->name
);
4222 mio_symbol_ref (&ns
->code
->resolved_sym
);
4227 pointer_info
*p1
= mio_symbol_ref (sym1
);
4228 pointer_info
*p2
= mio_symbol_ref (sym2
);
4230 gcc_assert (p1
->u
.rsym
.ns
== p2
->u
.rsym
.ns
);
4231 gcc_assert (p1
->u
.rsym
.sym
== NULL
);
4232 /* Add hidden symbols to the symtree. */
4233 pointer_info
*q
= get_integer (p1
->u
.rsym
.ns
);
4234 q
->u
.pointer
= (void *) ns
;
4235 sym
= gfc_new_symbol (is_initializer
? "omp_priv" : "omp_out", ns
);
4237 sym
->module
= gfc_get_string ("%s", p1
->u
.rsym
.module
);
4238 associate_integer_pointer (p1
, sym
);
4239 sym
->attr
.omp_udr_artificial_var
= 1;
4240 gcc_assert (p2
->u
.rsym
.sym
== NULL
);
4241 sym
= gfc_new_symbol (is_initializer
? "omp_orig" : "omp_in", ns
);
4243 sym
->module
= gfc_get_string ("%s", p2
->u
.rsym
.module
);
4244 associate_integer_pointer (p2
, sym
);
4245 sym
->attr
.omp_udr_artificial_var
= 1;
4246 if (mio_name (0, omp_declare_reduction_stmt
) == 0)
4248 ns
->code
= gfc_get_code (EXEC_ASSIGN
);
4249 mio_expr (&ns
->code
->expr1
);
4250 mio_expr (&ns
->code
->expr2
);
4255 ns
->code
= gfc_get_code (EXEC_CALL
);
4256 mio_symtree_ref (&ns
->code
->symtree
);
4257 mio_actual_arglist (&ns
->code
->ext
.actual
, false);
4259 mio_integer (&flag
);
4262 require_atom (ATOM_STRING
);
4263 ns
->code
->resolved_isym
= gfc_find_subroutine (atom_string
);
4267 mio_symbol_ref (&ns
->code
->resolved_sym
);
4269 ns
->code
->loc
= gfc_current_locus
;
4275 /* Unlike most other routines, the address of the symbol node is already
4276 fixed on input and the name/module has already been filled in.
4277 If you update the symbol format here, don't forget to update read_module
4278 as well (look for "seek to the symbol's component list"). */
4281 mio_symbol (gfc_symbol
*sym
)
4283 int intmod
= INTMOD_NONE
;
4287 mio_symbol_attribute (&sym
->attr
);
4289 /* Note that components are always saved, even if they are supposed
4290 to be private. Component access is checked during searching. */
4291 mio_component_list (&sym
->components
, sym
->attr
.vtype
);
4292 if (sym
->components
!= NULL
)
4293 sym
->component_access
4294 = MIO_NAME (gfc_access
) (sym
->component_access
, access_types
);
4296 mio_typespec (&sym
->ts
);
4297 if (sym
->ts
.type
== BT_CLASS
)
4298 sym
->attr
.class_ok
= 1;
4300 if (iomode
== IO_OUTPUT
)
4301 mio_namespace_ref (&sym
->formal_ns
);
4304 mio_namespace_ref (&sym
->formal_ns
);
4306 sym
->formal_ns
->proc_name
= sym
;
4309 /* Save/restore common block links. */
4310 mio_symbol_ref (&sym
->common_next
);
4312 mio_formal_arglist (&sym
->formal
);
4314 if (sym
->attr
.flavor
== FL_PARAMETER
)
4315 mio_expr (&sym
->value
);
4317 mio_array_spec (&sym
->as
);
4319 mio_symbol_ref (&sym
->result
);
4321 if (sym
->attr
.cray_pointee
)
4322 mio_symbol_ref (&sym
->cp_pointer
);
4324 /* Load/save the f2k_derived namespace of a derived-type symbol. */
4325 mio_full_f2k_derived (sym
);
4327 /* PDT types store the symbol specification list here. */
4328 mio_actual_arglist (&sym
->param_list
, true);
4332 /* Add the fields that say whether this is from an intrinsic module,
4333 and if so, what symbol it is within the module. */
4334 /* mio_integer (&(sym->from_intmod)); */
4335 if (iomode
== IO_OUTPUT
)
4337 intmod
= sym
->from_intmod
;
4338 mio_integer (&intmod
);
4342 mio_integer (&intmod
);
4344 sym
->from_intmod
= current_intmod
;
4346 sym
->from_intmod
= (intmod_id
) intmod
;
4349 mio_integer (&(sym
->intmod_sym_id
));
4351 if (gfc_fl_struct (sym
->attr
.flavor
))
4352 mio_integer (&(sym
->hash_value
));
4355 && sym
->formal_ns
->proc_name
== sym
4356 && sym
->formal_ns
->entries
== NULL
)
4357 mio_omp_declare_simd (sym
->formal_ns
, &sym
->formal_ns
->omp_declare_simd
);
4363 /************************* Top level subroutines *************************/
4365 /* A recursive function to look for a specific symbol by name and by
4366 module. Whilst several symtrees might point to one symbol, its
4367 is sufficient for the purposes here than one exist. Note that
4368 generic interfaces are distinguished as are symbols that have been
4369 renamed in another module. */
4370 static gfc_symtree
*
4371 find_symbol (gfc_symtree
*st
, const char *name
,
4372 const char *module
, int generic
)
4375 gfc_symtree
*retval
, *s
;
4377 if (st
== NULL
|| st
->n
.sym
== NULL
)
4380 c
= strcmp (name
, st
->n
.sym
->name
);
4381 if (c
== 0 && st
->n
.sym
->module
4382 && strcmp (module
, st
->n
.sym
->module
) == 0
4383 && !check_unique_name (st
->name
))
4385 s
= gfc_find_symtree (gfc_current_ns
->sym_root
, name
);
4387 /* Detect symbols that are renamed by use association in another
4388 module by the absence of a symtree and null attr.use_rename,
4389 since the latter is not transmitted in the module file. */
4390 if (((!generic
&& !st
->n
.sym
->attr
.generic
)
4391 || (generic
&& st
->n
.sym
->attr
.generic
))
4392 && !(s
== NULL
&& !st
->n
.sym
->attr
.use_rename
))
4396 retval
= find_symbol (st
->left
, name
, module
, generic
);
4399 retval
= find_symbol (st
->right
, name
, module
, generic
);
4405 /* Skip a list between balanced left and right parens.
4406 By setting NEST_LEVEL one assumes that a number of NEST_LEVEL opening parens
4407 have been already parsed by hand, and the remaining of the content is to be
4408 skipped here. The default value is 0 (balanced parens). */
4411 skip_list (int nest_level
= 0)
4418 switch (parse_atom ())
4441 /* Load operator interfaces from the module. Interfaces are unusual
4442 in that they attach themselves to existing symbols. */
4445 load_operator_interfaces (void)
4448 char name
[GFC_MAX_SYMBOL_LEN
+ 1], module
[GFC_MAX_SYMBOL_LEN
+ 1];
4450 pointer_info
*pi
= NULL
;
4455 while (peek_atom () != ATOM_RPAREN
)
4459 mio_internal_string (name
);
4460 mio_internal_string (module
);
4462 n
= number_use_names (name
, true);
4465 for (i
= 1; i
<= n
; i
++)
4467 /* Decide if we need to load this one or not. */
4468 p
= find_use_name_n (name
, &i
, true);
4472 while (parse_atom () != ATOM_RPAREN
);
4478 uop
= gfc_get_uop (p
);
4479 pi
= mio_interface_rest (&uop
->op
);
4483 if (gfc_find_uop (p
, NULL
))
4485 uop
= gfc_get_uop (p
);
4486 uop
->op
= gfc_get_interface ();
4487 uop
->op
->where
= gfc_current_locus
;
4488 add_fixup (pi
->integer
, &uop
->op
->sym
);
4497 /* Load interfaces from the module. Interfaces are unusual in that
4498 they attach themselves to existing symbols. */
4501 load_generic_interfaces (void)
4504 char name
[GFC_MAX_SYMBOL_LEN
+ 1], module
[GFC_MAX_SYMBOL_LEN
+ 1];
4506 gfc_interface
*generic
= NULL
, *gen
= NULL
;
4508 bool ambiguous_set
= false;
4512 while (peek_atom () != ATOM_RPAREN
)
4516 mio_internal_string (name
);
4517 mio_internal_string (module
);
4519 n
= number_use_names (name
, false);
4520 renamed
= n
? 1 : 0;
4523 for (i
= 1; i
<= n
; i
++)
4526 /* Decide if we need to load this one or not. */
4527 p
= find_use_name_n (name
, &i
, false);
4529 st
= find_symbol (gfc_current_ns
->sym_root
,
4530 name
, module_name
, 1);
4532 if (!p
|| gfc_find_symbol (p
, NULL
, 0, &sym
))
4534 /* Skip the specific names for these cases. */
4535 while (i
== 1 && parse_atom () != ATOM_RPAREN
);
4540 /* If the symbol exists already and is being USEd without being
4541 in an ONLY clause, do not load a new symtree(11.3.2). */
4542 if (!only_flag
&& st
)
4550 if (strcmp (st
->name
, p
) != 0)
4552 st
= gfc_new_symtree (&gfc_current_ns
->sym_root
, p
);
4558 /* Since we haven't found a valid generic interface, we had
4562 gfc_get_symbol (p
, NULL
, &sym
);
4563 sym
->name
= gfc_get_string ("%s", name
);
4564 sym
->module
= module_name
;
4565 sym
->attr
.flavor
= FL_PROCEDURE
;
4566 sym
->attr
.generic
= 1;
4567 sym
->attr
.use_assoc
= 1;
4572 /* Unless sym is a generic interface, this reference
4575 st
= gfc_find_symtree (gfc_current_ns
->sym_root
, p
);
4579 if (st
&& !sym
->attr
.generic
4582 && strcmp (module
, sym
->module
))
4584 ambiguous_set
= true;
4589 sym
->attr
.use_only
= only_flag
;
4590 sym
->attr
.use_rename
= renamed
;
4594 mio_interface_rest (&sym
->generic
);
4595 generic
= sym
->generic
;
4597 else if (!sym
->generic
)
4599 sym
->generic
= generic
;
4600 sym
->attr
.generic_copy
= 1;
4603 /* If a procedure that is not generic has generic interfaces
4604 that include itself, it is generic! We need to take care
4605 to retain symbols ambiguous that were already so. */
4606 if (sym
->attr
.use_assoc
4607 && !sym
->attr
.generic
4608 && sym
->attr
.flavor
== FL_PROCEDURE
)
4610 for (gen
= generic
; gen
; gen
= gen
->next
)
4612 if (gen
->sym
== sym
)
4614 sym
->attr
.generic
= 1;
4629 /* Load common blocks. */
4634 char name
[GFC_MAX_SYMBOL_LEN
+ 1];
4639 while (peek_atom () != ATOM_RPAREN
)
4644 mio_internal_string (name
);
4646 p
= gfc_get_common (name
, 1);
4648 mio_symbol_ref (&p
->head
);
4649 mio_integer (&flags
);
4653 p
->threadprivate
= 1;
4656 /* Get whether this was a bind(c) common or not. */
4657 mio_integer (&p
->is_bind_c
);
4658 /* Get the binding label. */
4659 label
= read_string ();
4661 p
->binding_label
= IDENTIFIER_POINTER (get_identifier (label
));
4671 /* Load equivalences. The flag in_load_equiv informs mio_expr_ref of this
4672 so that unused variables are not loaded and so that the expression can
4678 gfc_equiv
*head
, *tail
, *end
, *eq
, *equiv
;
4682 in_load_equiv
= true;
4684 end
= gfc_current_ns
->equiv
;
4685 while (end
!= NULL
&& end
->next
!= NULL
)
4688 while (peek_atom () != ATOM_RPAREN
) {
4692 while(peek_atom () != ATOM_RPAREN
)
4695 head
= tail
= gfc_get_equiv ();
4698 tail
->eq
= gfc_get_equiv ();
4702 mio_pool_string (&tail
->module
);
4703 mio_expr (&tail
->expr
);
4706 /* Check for duplicate equivalences being loaded from different modules */
4708 for (equiv
= gfc_current_ns
->equiv
; equiv
; equiv
= equiv
->next
)
4710 if (equiv
->module
&& head
->module
4711 && strcmp (equiv
->module
, head
->module
) == 0)
4720 for (eq
= head
; eq
; eq
= head
)
4723 gfc_free_expr (eq
->expr
);
4729 gfc_current_ns
->equiv
= head
;
4740 in_load_equiv
= false;
4744 /* This function loads OpenMP user defined reductions. */
4746 load_omp_udrs (void)
4749 while (peek_atom () != ATOM_RPAREN
)
4751 const char *name
= NULL
, *newname
;
4755 gfc_omp_reduction_op rop
= OMP_REDUCTION_USER
;
4758 mio_pool_string (&name
);
4761 if (strncmp (name
, "operator ", sizeof ("operator ") - 1) == 0)
4763 const char *p
= name
+ sizeof ("operator ") - 1;
4764 if (strcmp (p
, "+") == 0)
4765 rop
= OMP_REDUCTION_PLUS
;
4766 else if (strcmp (p
, "*") == 0)
4767 rop
= OMP_REDUCTION_TIMES
;
4768 else if (strcmp (p
, "-") == 0)
4769 rop
= OMP_REDUCTION_MINUS
;
4770 else if (strcmp (p
, ".and.") == 0)
4771 rop
= OMP_REDUCTION_AND
;
4772 else if (strcmp (p
, ".or.") == 0)
4773 rop
= OMP_REDUCTION_OR
;
4774 else if (strcmp (p
, ".eqv.") == 0)
4775 rop
= OMP_REDUCTION_EQV
;
4776 else if (strcmp (p
, ".neqv.") == 0)
4777 rop
= OMP_REDUCTION_NEQV
;
4780 if (rop
== OMP_REDUCTION_USER
&& name
[0] == '.')
4782 size_t len
= strlen (name
+ 1);
4783 altname
= XALLOCAVEC (char, len
);
4784 gcc_assert (name
[len
] == '.');
4785 memcpy (altname
, name
+ 1, len
- 1);
4786 altname
[len
- 1] = '\0';
4789 if (rop
== OMP_REDUCTION_USER
)
4790 newname
= find_use_name (altname
? altname
: name
, !!altname
);
4791 else if (only_flag
&& find_use_operator ((gfc_intrinsic_op
) rop
) == NULL
)
4793 if (newname
== NULL
)
4798 if (altname
&& newname
!= altname
)
4800 size_t len
= strlen (newname
);
4801 altname
= XALLOCAVEC (char, len
+ 3);
4803 memcpy (altname
+ 1, newname
, len
);
4804 altname
[len
+ 1] = '.';
4805 altname
[len
+ 2] = '\0';
4806 name
= gfc_get_string ("%s", altname
);
4808 st
= gfc_find_symtree (gfc_current_ns
->omp_udr_root
, name
);
4809 gfc_omp_udr
*udr
= gfc_omp_udr_find (st
, &ts
);
4812 require_atom (ATOM_INTEGER
);
4813 pointer_info
*p
= get_integer (atom_int
);
4814 if (strcmp (p
->u
.rsym
.module
, udr
->omp_out
->module
))
4816 gfc_error ("Ambiguous !$OMP DECLARE REDUCTION from "
4818 p
->u
.rsym
.module
, &gfc_current_locus
);
4819 gfc_error ("Previous !$OMP DECLARE REDUCTION from module "
4821 udr
->omp_out
->module
, &udr
->where
);
4826 udr
= gfc_get_omp_udr ();
4830 udr
->where
= gfc_current_locus
;
4831 udr
->combiner_ns
= gfc_get_namespace (gfc_current_ns
, 1);
4832 udr
->combiner_ns
->proc_name
= gfc_current_ns
->proc_name
;
4833 mio_omp_udr_expr (udr
, &udr
->omp_out
, &udr
->omp_in
, udr
->combiner_ns
,
4835 if (peek_atom () != ATOM_RPAREN
)
4837 udr
->initializer_ns
= gfc_get_namespace (gfc_current_ns
, 1);
4838 udr
->initializer_ns
->proc_name
= gfc_current_ns
->proc_name
;
4839 mio_omp_udr_expr (udr
, &udr
->omp_priv
, &udr
->omp_orig
,
4840 udr
->initializer_ns
, true);
4844 udr
->next
= st
->n
.omp_udr
;
4845 st
->n
.omp_udr
= udr
;
4849 st
= gfc_new_symtree (&gfc_current_ns
->omp_udr_root
, name
);
4850 st
->n
.omp_udr
= udr
;
4858 /* Recursive function to traverse the pointer_info tree and load a
4859 needed symbol. We return nonzero if we load a symbol and stop the
4860 traversal, because the act of loading can alter the tree. */
4863 load_needed (pointer_info
*p
)
4874 rv
|= load_needed (p
->left
);
4875 rv
|= load_needed (p
->right
);
4877 if (p
->type
!= P_SYMBOL
|| p
->u
.rsym
.state
!= NEEDED
)
4880 p
->u
.rsym
.state
= USED
;
4882 set_module_locus (&p
->u
.rsym
.where
);
4884 sym
= p
->u
.rsym
.sym
;
4887 q
= get_integer (p
->u
.rsym
.ns
);
4889 ns
= (gfc_namespace
*) q
->u
.pointer
;
4892 /* Create an interface namespace if necessary. These are
4893 the namespaces that hold the formal parameters of module
4896 ns
= gfc_get_namespace (NULL
, 0);
4897 associate_integer_pointer (q
, ns
);
4900 /* Use the module sym as 'proc_name' so that gfc_get_symbol_decl
4901 doesn't go pear-shaped if the symbol is used. */
4903 gfc_find_symbol (p
->u
.rsym
.module
, gfc_current_ns
,
4906 sym
= gfc_new_symbol (p
->u
.rsym
.true_name
, ns
);
4907 sym
->name
= gfc_dt_lower_string (p
->u
.rsym
.true_name
);
4908 sym
->module
= gfc_get_string ("%s", p
->u
.rsym
.module
);
4909 if (p
->u
.rsym
.binding_label
)
4910 sym
->binding_label
= IDENTIFIER_POINTER (get_identifier
4911 (p
->u
.rsym
.binding_label
));
4913 associate_integer_pointer (p
, sym
);
4917 sym
->attr
.use_assoc
= 1;
4919 /* Unliked derived types, a STRUCTURE may share names with other symbols.
4920 We greedily converted the the symbol name to lowercase before we knew its
4921 type, so now we must fix it. */
4922 if (sym
->attr
.flavor
== FL_STRUCT
)
4923 sym
->name
= gfc_dt_upper_string (sym
->name
);
4925 /* Mark as only or rename for later diagnosis for explicitly imported
4926 but not used warnings; don't mark internal symbols such as __vtab,
4927 __def_init etc. Only mark them if they have been explicitly loaded. */
4929 if (only_flag
&& sym
->name
[0] != '_' && sym
->name
[1] != '_')
4933 /* Search the use/rename list for the variable; if the variable is
4935 for (u
= gfc_rename_list
; u
; u
= u
->next
)
4937 if (strcmp (u
->use_name
, sym
->name
) == 0)
4939 sym
->attr
.use_only
= 1;
4945 if (p
->u
.rsym
.renamed
)
4946 sym
->attr
.use_rename
= 1;
4952 /* Recursive function for cleaning up things after a module has been read. */
4955 read_cleanup (pointer_info
*p
)
4963 read_cleanup (p
->left
);
4964 read_cleanup (p
->right
);
4966 if (p
->type
== P_SYMBOL
&& p
->u
.rsym
.state
== USED
&& !p
->u
.rsym
.referenced
)
4969 /* Add hidden symbols to the symtree. */
4970 q
= get_integer (p
->u
.rsym
.ns
);
4971 ns
= (gfc_namespace
*) q
->u
.pointer
;
4973 if (!p
->u
.rsym
.sym
->attr
.vtype
4974 && !p
->u
.rsym
.sym
->attr
.vtab
)
4975 st
= gfc_get_unique_symtree (ns
);
4978 /* There is no reason to use 'unique_symtrees' for vtabs or
4979 vtypes - their name is fine for a symtree and reduces the
4980 namespace pollution. */
4981 st
= gfc_find_symtree (ns
->sym_root
, p
->u
.rsym
.sym
->name
);
4983 st
= gfc_new_symtree (&ns
->sym_root
, p
->u
.rsym
.sym
->name
);
4986 st
->n
.sym
= p
->u
.rsym
.sym
;
4989 /* Fixup any symtree references. */
4990 p
->u
.rsym
.symtree
= st
;
4991 resolve_fixups (p
->u
.rsym
.stfixup
, st
);
4992 p
->u
.rsym
.stfixup
= NULL
;
4995 /* Free unused symbols. */
4996 if (p
->type
== P_SYMBOL
&& p
->u
.rsym
.state
== UNUSED
)
4997 gfc_free_symbol (p
->u
.rsym
.sym
);
5001 /* It is not quite enough to check for ambiguity in the symbols by
5002 the loaded symbol and the new symbol not being identical. */
5004 check_for_ambiguous (gfc_symtree
*st
, pointer_info
*info
)
5008 symbol_attribute attr
;
5011 if (gfc_current_ns
->proc_name
&& st
->name
== gfc_current_ns
->proc_name
->name
)
5013 gfc_error ("%qs of module %qs, imported at %C, is also the name of the "
5014 "current program unit", st
->name
, module_name
);
5019 rsym
= info
->u
.rsym
.sym
;
5023 if (st_sym
->attr
.vtab
|| st_sym
->attr
.vtype
)
5026 /* If the existing symbol is generic from a different module and
5027 the new symbol is generic there can be no ambiguity. */
5028 if (st_sym
->attr
.generic
5030 && st_sym
->module
!= module_name
)
5032 /* The new symbol's attributes have not yet been read. Since
5033 we need attr.generic, read it directly. */
5034 get_module_locus (&locus
);
5035 set_module_locus (&info
->u
.rsym
.where
);
5038 mio_symbol_attribute (&attr
);
5039 set_module_locus (&locus
);
5048 /* Read a module file. */
5053 module_locus operator_interfaces
, user_operators
, omp_udrs
;
5055 char name
[GFC_MAX_SYMBOL_LEN
+ 1];
5057 /* Workaround -Wmaybe-uninitialized false positive during
5058 profiledbootstrap by initializing them. */
5059 int ambiguous
= 0, j
, nuse
, symbol
= 0;
5060 pointer_info
*info
, *q
;
5061 gfc_use_rename
*u
= NULL
;
5065 get_module_locus (&operator_interfaces
); /* Skip these for now. */
5068 get_module_locus (&user_operators
);
5072 /* Skip commons and equivalences for now. */
5076 /* Skip OpenMP UDRs. */
5077 get_module_locus (&omp_udrs
);
5082 /* Create the fixup nodes for all the symbols. */
5084 while (peek_atom () != ATOM_RPAREN
)
5087 require_atom (ATOM_INTEGER
);
5088 info
= get_integer (atom_int
);
5090 info
->type
= P_SYMBOL
;
5091 info
->u
.rsym
.state
= UNUSED
;
5093 info
->u
.rsym
.true_name
= read_string ();
5094 info
->u
.rsym
.module
= read_string ();
5095 bind_label
= read_string ();
5096 if (strlen (bind_label
))
5097 info
->u
.rsym
.binding_label
= bind_label
;
5099 XDELETEVEC (bind_label
);
5101 require_atom (ATOM_INTEGER
);
5102 info
->u
.rsym
.ns
= atom_int
;
5104 get_module_locus (&info
->u
.rsym
.where
);
5106 /* See if the symbol has already been loaded by a previous module.
5107 If so, we reference the existing symbol and prevent it from
5108 being loaded again. This should not happen if the symbol being
5109 read is an index for an assumed shape dummy array (ns != 1). */
5111 sym
= find_true_name (info
->u
.rsym
.true_name
, info
->u
.rsym
.module
);
5114 || (sym
->attr
.flavor
== FL_VARIABLE
&& info
->u
.rsym
.ns
!=1))
5120 info
->u
.rsym
.state
= USED
;
5121 info
->u
.rsym
.sym
= sym
;
5122 /* The current symbol has already been loaded, so we can avoid loading
5123 it again. However, if it is a derived type, some of its components
5124 can be used in expressions in the module. To avoid the module loading
5125 failing, we need to associate the module's component pointer indexes
5126 with the existing symbol's component pointers. */
5127 if (gfc_fl_struct (sym
->attr
.flavor
))
5131 /* First seek to the symbol's component list. */
5132 mio_lparen (); /* symbol opening. */
5133 skip_list (); /* skip symbol attribute. */
5135 mio_lparen (); /* component list opening. */
5136 for (c
= sym
->components
; c
; c
= c
->next
)
5139 const char *comp_name
;
5142 mio_lparen (); /* component opening. */
5144 p
= get_integer (n
);
5145 if (p
->u
.pointer
== NULL
)
5146 associate_integer_pointer (p
, c
);
5147 mio_pool_string (&comp_name
);
5148 gcc_assert (comp_name
== c
->name
);
5149 skip_list (1); /* component end. */
5151 mio_rparen (); /* component list closing. */
5153 skip_list (1); /* symbol end. */
5158 /* Some symbols do not have a namespace (eg. formal arguments),
5159 so the automatic "unique symtree" mechanism must be suppressed
5160 by marking them as referenced. */
5161 q
= get_integer (info
->u
.rsym
.ns
);
5162 if (q
->u
.pointer
== NULL
)
5164 info
->u
.rsym
.referenced
= 1;
5171 /* Parse the symtree lists. This lets us mark which symbols need to
5172 be loaded. Renaming is also done at this point by replacing the
5177 while (peek_atom () != ATOM_RPAREN
)
5179 mio_internal_string (name
);
5180 mio_integer (&ambiguous
);
5181 mio_integer (&symbol
);
5183 info
= get_integer (symbol
);
5185 /* See how many use names there are. If none, go through the start
5186 of the loop at least once. */
5187 nuse
= number_use_names (name
, false);
5188 info
->u
.rsym
.renamed
= nuse
? 1 : 0;
5193 for (j
= 1; j
<= nuse
; j
++)
5195 /* Get the jth local name for this symbol. */
5196 p
= find_use_name_n (name
, &j
, false);
5198 if (p
== NULL
&& strcmp (name
, module_name
) == 0)
5201 /* Exception: Always import vtabs & vtypes. */
5202 if (p
== NULL
&& name
[0] == '_'
5203 && (strncmp (name
, "__vtab_", 5) == 0
5204 || strncmp (name
, "__vtype_", 6) == 0))
5207 /* Skip symtree nodes not in an ONLY clause, unless there
5208 is an existing symtree loaded from another USE statement. */
5211 st
= gfc_find_symtree (gfc_current_ns
->sym_root
, name
);
5213 && strcmp (st
->n
.sym
->name
, info
->u
.rsym
.true_name
) == 0
5214 && st
->n
.sym
->module
!= NULL
5215 && strcmp (st
->n
.sym
->module
, info
->u
.rsym
.module
) == 0)
5217 info
->u
.rsym
.symtree
= st
;
5218 info
->u
.rsym
.sym
= st
->n
.sym
;
5223 /* If a symbol of the same name and module exists already,
5224 this symbol, which is not in an ONLY clause, must not be
5225 added to the namespace(11.3.2). Note that find_symbol
5226 only returns the first occurrence that it finds. */
5227 if (!only_flag
&& !info
->u
.rsym
.renamed
5228 && strcmp (name
, module_name
) != 0
5229 && find_symbol (gfc_current_ns
->sym_root
, name
,
5233 st
= gfc_find_symtree (gfc_current_ns
->sym_root
, p
);
5236 && !(st
->n
.sym
&& st
->n
.sym
->attr
.used_in_submodule
))
5238 /* Check for ambiguous symbols. */
5239 if (check_for_ambiguous (st
, info
))
5242 info
->u
.rsym
.symtree
= st
;
5248 /* This symbol is host associated from a module in a
5249 submodule. Hide it with a unique symtree. */
5250 gfc_symtree
*s
= gfc_get_unique_symtree (gfc_current_ns
);
5251 s
->n
.sym
= st
->n
.sym
;
5256 /* Create a symtree node in the current namespace for this
5258 st
= check_unique_name (p
)
5259 ? gfc_get_unique_symtree (gfc_current_ns
)
5260 : gfc_new_symtree (&gfc_current_ns
->sym_root
, p
);
5261 st
->ambiguous
= ambiguous
;
5264 sym
= info
->u
.rsym
.sym
;
5266 /* Create a symbol node if it doesn't already exist. */
5269 info
->u
.rsym
.sym
= gfc_new_symbol (info
->u
.rsym
.true_name
,
5271 info
->u
.rsym
.sym
->name
= gfc_dt_lower_string (info
->u
.rsym
.true_name
);
5272 sym
= info
->u
.rsym
.sym
;
5273 sym
->module
= gfc_get_string ("%s", info
->u
.rsym
.module
);
5275 if (info
->u
.rsym
.binding_label
)
5277 tree id
= get_identifier (info
->u
.rsym
.binding_label
);
5278 sym
->binding_label
= IDENTIFIER_POINTER (id
);
5285 if (strcmp (name
, p
) != 0)
5286 sym
->attr
.use_rename
= 1;
5289 || (strncmp (name
, "__vtab_", 5) != 0
5290 && strncmp (name
, "__vtype_", 6) != 0))
5291 sym
->attr
.use_only
= only_flag
;
5293 /* Store the symtree pointing to this symbol. */
5294 info
->u
.rsym
.symtree
= st
;
5296 if (info
->u
.rsym
.state
== UNUSED
)
5297 info
->u
.rsym
.state
= NEEDED
;
5298 info
->u
.rsym
.referenced
= 1;
5305 /* Load intrinsic operator interfaces. */
5306 set_module_locus (&operator_interfaces
);
5309 for (i
= GFC_INTRINSIC_BEGIN
; i
!= GFC_INTRINSIC_END
; i
++)
5311 if (i
== INTRINSIC_USER
)
5316 u
= find_use_operator ((gfc_intrinsic_op
) i
);
5327 mio_interface (&gfc_current_ns
->op
[i
]);
5328 if (u
&& !gfc_current_ns
->op
[i
])
5334 /* Load generic and user operator interfaces. These must follow the
5335 loading of symtree because otherwise symbols can be marked as
5338 set_module_locus (&user_operators
);
5340 load_operator_interfaces ();
5341 load_generic_interfaces ();
5346 /* Load OpenMP user defined reductions. */
5347 set_module_locus (&omp_udrs
);
5350 /* At this point, we read those symbols that are needed but haven't
5351 been loaded yet. If one symbol requires another, the other gets
5352 marked as NEEDED if its previous state was UNUSED. */
5354 while (load_needed (pi_root
));
5356 /* Make sure all elements of the rename-list were found in the module. */
5358 for (u
= gfc_rename_list
; u
; u
= u
->next
)
5363 if (u
->op
== INTRINSIC_NONE
)
5365 gfc_error ("Symbol %qs referenced at %L not found in module %qs",
5366 u
->use_name
, &u
->where
, module_name
);
5370 if (u
->op
== INTRINSIC_USER
)
5372 gfc_error ("User operator %qs referenced at %L not found "
5373 "in module %qs", u
->use_name
, &u
->where
, module_name
);
5377 gfc_error ("Intrinsic operator %qs referenced at %L not found "
5378 "in module %qs", gfc_op2string (u
->op
), &u
->where
,
5382 /* Clean up symbol nodes that were never loaded, create references
5383 to hidden symbols. */
5385 read_cleanup (pi_root
);
5389 /* Given an access type that is specific to an entity and the default
5390 access, return nonzero if the entity is publicly accessible. If the
5391 element is declared as PUBLIC, then it is public; if declared
5392 PRIVATE, then private, and otherwise it is public unless the default
5393 access in this context has been declared PRIVATE. */
5395 static bool dump_smod
= false;
5398 check_access (gfc_access specific_access
, gfc_access default_access
)
5403 if (specific_access
== ACCESS_PUBLIC
)
5405 if (specific_access
== ACCESS_PRIVATE
)
5408 if (flag_module_private
)
5409 return default_access
== ACCESS_PUBLIC
;
5411 return default_access
!= ACCESS_PRIVATE
;
5416 gfc_check_symbol_access (gfc_symbol
*sym
)
5418 if (sym
->attr
.vtab
|| sym
->attr
.vtype
)
5421 return check_access (sym
->attr
.access
, sym
->ns
->default_access
);
5425 /* A structure to remember which commons we've already written. */
5427 struct written_common
5429 BBT_HEADER(written_common
);
5430 const char *name
, *label
;
5433 static struct written_common
*written_commons
= NULL
;
5435 /* Comparison function used for balancing the binary tree. */
5438 compare_written_commons (void *a1
, void *b1
)
5440 const char *aname
= ((struct written_common
*) a1
)->name
;
5441 const char *alabel
= ((struct written_common
*) a1
)->label
;
5442 const char *bname
= ((struct written_common
*) b1
)->name
;
5443 const char *blabel
= ((struct written_common
*) b1
)->label
;
5444 int c
= strcmp (aname
, bname
);
5446 return (c
!= 0 ? c
: strcmp (alabel
, blabel
));
5449 /* Free a list of written commons. */
5452 free_written_common (struct written_common
*w
)
5458 free_written_common (w
->left
);
5460 free_written_common (w
->right
);
5465 /* Write a common block to the module -- recursive helper function. */
5468 write_common_0 (gfc_symtree
*st
, bool this_module
)
5474 struct written_common
*w
;
5475 bool write_me
= true;
5480 write_common_0 (st
->left
, this_module
);
5482 /* We will write out the binding label, or "" if no label given. */
5483 name
= st
->n
.common
->name
;
5485 label
= (p
->is_bind_c
&& p
->binding_label
) ? p
->binding_label
: "";
5487 /* Check if we've already output this common. */
5488 w
= written_commons
;
5491 int c
= strcmp (name
, w
->name
);
5492 c
= (c
!= 0 ? c
: strcmp (label
, w
->label
));
5496 w
= (c
< 0) ? w
->left
: w
->right
;
5499 if (this_module
&& p
->use_assoc
)
5504 /* Write the common to the module. */
5506 mio_pool_string (&name
);
5508 mio_symbol_ref (&p
->head
);
5509 flags
= p
->saved
? 1 : 0;
5510 if (p
->threadprivate
)
5512 mio_integer (&flags
);
5514 /* Write out whether the common block is bind(c) or not. */
5515 mio_integer (&(p
->is_bind_c
));
5517 mio_pool_string (&label
);
5520 /* Record that we have written this common. */
5521 w
= XCNEW (struct written_common
);
5524 gfc_insert_bbt (&written_commons
, w
, compare_written_commons
);
5527 write_common_0 (st
->right
, this_module
);
5531 /* Write a common, by initializing the list of written commons, calling
5532 the recursive function write_common_0() and cleaning up afterwards. */
5535 write_common (gfc_symtree
*st
)
5537 written_commons
= NULL
;
5538 write_common_0 (st
, true);
5539 write_common_0 (st
, false);
5540 free_written_common (written_commons
);
5541 written_commons
= NULL
;
5545 /* Write the blank common block to the module. */
5548 write_blank_common (void)
5550 const char * name
= BLANK_COMMON_NAME
;
5552 /* TODO: Blank commons are not bind(c). The F2003 standard probably says
5553 this, but it hasn't been checked. Just making it so for now. */
5556 if (gfc_current_ns
->blank_common
.head
== NULL
)
5561 mio_pool_string (&name
);
5563 mio_symbol_ref (&gfc_current_ns
->blank_common
.head
);
5564 saved
= gfc_current_ns
->blank_common
.saved
;
5565 mio_integer (&saved
);
5567 /* Write out whether the common block is bind(c) or not. */
5568 mio_integer (&is_bind_c
);
5570 /* Write out an empty binding label. */
5571 write_atom (ATOM_STRING
, "");
5577 /* Write equivalences to the module. */
5586 for (eq
= gfc_current_ns
->equiv
; eq
; eq
= eq
->next
)
5590 for (e
= eq
; e
; e
= e
->eq
)
5592 if (e
->module
== NULL
)
5593 e
->module
= gfc_get_string ("%s.eq.%d", module_name
, num
);
5594 mio_allocated_string (e
->module
);
5595 mio_expr (&e
->expr
);
5604 /* Write a symbol to the module. */
5607 write_symbol (int n
, gfc_symbol
*sym
)
5611 if (sym
->attr
.flavor
== FL_UNKNOWN
|| sym
->attr
.flavor
== FL_LABEL
)
5612 gfc_internal_error ("write_symbol(): bad module symbol %qs", sym
->name
);
5616 if (gfc_fl_struct (sym
->attr
.flavor
))
5619 name
= gfc_dt_upper_string (sym
->name
);
5620 mio_pool_string (&name
);
5623 mio_pool_string (&sym
->name
);
5625 mio_pool_string (&sym
->module
);
5626 if ((sym
->attr
.is_bind_c
|| sym
->attr
.is_iso_c
) && sym
->binding_label
)
5628 label
= sym
->binding_label
;
5629 mio_pool_string (&label
);
5632 write_atom (ATOM_STRING
, "");
5634 mio_pointer_ref (&sym
->ns
);
5641 /* Recursive traversal function to write the initial set of symbols to
5642 the module. We check to see if the symbol should be written
5643 according to the access specification. */
5646 write_symbol0 (gfc_symtree
*st
)
5650 bool dont_write
= false;
5655 write_symbol0 (st
->left
);
5658 if (sym
->module
== NULL
)
5659 sym
->module
= module_name
;
5661 if (sym
->attr
.flavor
== FL_PROCEDURE
&& sym
->attr
.generic
5662 && !sym
->attr
.subroutine
&& !sym
->attr
.function
)
5665 if (!gfc_check_symbol_access (sym
))
5670 p
= get_pointer (sym
);
5671 if (p
->type
== P_UNKNOWN
)
5674 if (p
->u
.wsym
.state
!= WRITTEN
)
5676 write_symbol (p
->integer
, sym
);
5677 p
->u
.wsym
.state
= WRITTEN
;
5681 write_symbol0 (st
->right
);
5686 write_omp_udr (gfc_omp_udr
*udr
)
5690 case OMP_REDUCTION_USER
:
5691 /* Non-operators can't be used outside of the module. */
5692 if (udr
->name
[0] != '.')
5697 size_t len
= strlen (udr
->name
+ 1);
5698 char *name
= XALLOCAVEC (char, len
);
5699 memcpy (name
, udr
->name
, len
- 1);
5700 name
[len
- 1] = '\0';
5701 st
= gfc_find_symtree (gfc_current_ns
->uop_root
, name
);
5702 /* If corresponding user operator is private, don't write
5706 gfc_user_op
*uop
= st
->n
.uop
;
5707 if (!check_access (uop
->access
, uop
->ns
->default_access
))
5712 case OMP_REDUCTION_PLUS
:
5713 case OMP_REDUCTION_MINUS
:
5714 case OMP_REDUCTION_TIMES
:
5715 case OMP_REDUCTION_AND
:
5716 case OMP_REDUCTION_OR
:
5717 case OMP_REDUCTION_EQV
:
5718 case OMP_REDUCTION_NEQV
:
5719 /* If corresponding operator is private, don't write the UDR. */
5720 if (!check_access (gfc_current_ns
->operator_access
[udr
->rop
],
5721 gfc_current_ns
->default_access
))
5727 if (udr
->ts
.type
== BT_DERIVED
|| udr
->ts
.type
== BT_CLASS
)
5729 /* If derived type is private, don't write the UDR. */
5730 if (!gfc_check_symbol_access (udr
->ts
.u
.derived
))
5735 mio_pool_string (&udr
->name
);
5736 mio_typespec (&udr
->ts
);
5737 mio_omp_udr_expr (udr
, &udr
->omp_out
, &udr
->omp_in
, udr
->combiner_ns
, false);
5738 if (udr
->initializer_ns
)
5739 mio_omp_udr_expr (udr
, &udr
->omp_priv
, &udr
->omp_orig
,
5740 udr
->initializer_ns
, true);
5746 write_omp_udrs (gfc_symtree
*st
)
5751 write_omp_udrs (st
->left
);
5753 for (udr
= st
->n
.omp_udr
; udr
; udr
= udr
->next
)
5754 write_omp_udr (udr
);
5755 write_omp_udrs (st
->right
);
5759 /* Type for the temporary tree used when writing secondary symbols. */
5761 struct sorted_pointer_info
5763 BBT_HEADER (sorted_pointer_info
);
5768 #define gfc_get_sorted_pointer_info() XCNEW (sorted_pointer_info)
5770 /* Recursively traverse the temporary tree, free its contents. */
5773 free_sorted_pointer_info_tree (sorted_pointer_info
*p
)
5778 free_sorted_pointer_info_tree (p
->left
);
5779 free_sorted_pointer_info_tree (p
->right
);
5784 /* Comparison function for the temporary tree. */
5787 compare_sorted_pointer_info (void *_spi1
, void *_spi2
)
5789 sorted_pointer_info
*spi1
, *spi2
;
5790 spi1
= (sorted_pointer_info
*)_spi1
;
5791 spi2
= (sorted_pointer_info
*)_spi2
;
5793 if (spi1
->p
->integer
< spi2
->p
->integer
)
5795 if (spi1
->p
->integer
> spi2
->p
->integer
)
5801 /* Finds the symbols that need to be written and collects them in the
5802 sorted_pi tree so that they can be traversed in an order
5803 independent of memory addresses. */
5806 find_symbols_to_write(sorted_pointer_info
**tree
, pointer_info
*p
)
5811 if (p
->type
== P_SYMBOL
&& p
->u
.wsym
.state
== NEEDS_WRITE
)
5813 sorted_pointer_info
*sp
= gfc_get_sorted_pointer_info();
5816 gfc_insert_bbt (tree
, sp
, compare_sorted_pointer_info
);
5819 find_symbols_to_write (tree
, p
->left
);
5820 find_symbols_to_write (tree
, p
->right
);
5824 /* Recursive function that traverses the tree of symbols that need to be
5825 written and writes them in order. */
5828 write_symbol1_recursion (sorted_pointer_info
*sp
)
5833 write_symbol1_recursion (sp
->left
);
5835 pointer_info
*p1
= sp
->p
;
5836 gcc_assert (p1
->type
== P_SYMBOL
&& p1
->u
.wsym
.state
== NEEDS_WRITE
);
5838 p1
->u
.wsym
.state
= WRITTEN
;
5839 write_symbol (p1
->integer
, p1
->u
.wsym
.sym
);
5840 p1
->u
.wsym
.sym
->attr
.public_used
= 1;
5842 write_symbol1_recursion (sp
->right
);
5846 /* Write the secondary set of symbols to the module file. These are
5847 symbols that were not public yet are needed by the public symbols
5848 or another dependent symbol. The act of writing a symbol can add
5849 symbols to the pointer_info tree, so we return nonzero if a symbol
5850 was written and pass that information upwards. The caller will
5851 then call this function again until nothing was written. It uses
5852 the utility functions and a temporary tree to ensure a reproducible
5853 ordering of the symbol output and thus the module file. */
5856 write_symbol1 (pointer_info
*p
)
5861 /* Put symbols that need to be written into a tree sorted on the
5864 sorted_pointer_info
*spi_root
= NULL
;
5865 find_symbols_to_write (&spi_root
, p
);
5867 /* No symbols to write, return. */
5871 /* Otherwise, write and free the tree again. */
5872 write_symbol1_recursion (spi_root
);
5873 free_sorted_pointer_info_tree (spi_root
);
5879 /* Write operator interfaces associated with a symbol. */
5882 write_operator (gfc_user_op
*uop
)
5884 static char nullstring
[] = "";
5885 const char *p
= nullstring
;
5887 if (uop
->op
== NULL
|| !check_access (uop
->access
, uop
->ns
->default_access
))
5890 mio_symbol_interface (&uop
->name
, &p
, &uop
->op
);
5894 /* Write generic interfaces from the namespace sym_root. */
5897 write_generic (gfc_symtree
*st
)
5904 write_generic (st
->left
);
5907 if (sym
&& !check_unique_name (st
->name
)
5908 && sym
->generic
&& gfc_check_symbol_access (sym
))
5911 sym
->module
= module_name
;
5913 mio_symbol_interface (&st
->name
, &sym
->module
, &sym
->generic
);
5916 write_generic (st
->right
);
5921 write_symtree (gfc_symtree
*st
)
5928 /* A symbol in an interface body must not be visible in the
5930 if (sym
->ns
!= gfc_current_ns
5931 && sym
->ns
->proc_name
5932 && sym
->ns
->proc_name
->attr
.if_source
== IFSRC_IFBODY
)
5935 if (!gfc_check_symbol_access (sym
)
5936 || (sym
->attr
.flavor
== FL_PROCEDURE
&& sym
->attr
.generic
5937 && !sym
->attr
.subroutine
&& !sym
->attr
.function
))
5940 if (check_unique_name (st
->name
))
5943 p
= find_pointer (sym
);
5945 gfc_internal_error ("write_symtree(): Symbol not written");
5947 mio_pool_string (&st
->name
);
5948 mio_integer (&st
->ambiguous
);
5949 mio_integer (&p
->integer
);
5958 /* Write the operator interfaces. */
5961 for (i
= GFC_INTRINSIC_BEGIN
; i
!= GFC_INTRINSIC_END
; i
++)
5963 if (i
== INTRINSIC_USER
)
5966 mio_interface (check_access (gfc_current_ns
->operator_access
[i
],
5967 gfc_current_ns
->default_access
)
5968 ? &gfc_current_ns
->op
[i
] : NULL
);
5976 gfc_traverse_user_op (gfc_current_ns
, write_operator
);
5982 write_generic (gfc_current_ns
->sym_root
);
5988 write_blank_common ();
5989 write_common (gfc_current_ns
->common_root
);
6001 write_omp_udrs (gfc_current_ns
->omp_udr_root
);
6006 /* Write symbol information. First we traverse all symbols in the
6007 primary namespace, writing those that need to be written.
6008 Sometimes writing one symbol will cause another to need to be
6009 written. A list of these symbols ends up on the write stack, and
6010 we end by popping the bottom of the stack and writing the symbol
6011 until the stack is empty. */
6015 write_symbol0 (gfc_current_ns
->sym_root
);
6016 while (write_symbol1 (pi_root
))
6025 gfc_traverse_symtree (gfc_current_ns
->sym_root
, write_symtree
);
6030 /* Read a CRC32 sum from the gzip trailer of a module file. Returns
6031 true on success, false on failure. */
6034 read_crc32_from_module_file (const char* filename
, uLong
* crc
)
6040 /* Open the file in binary mode. */
6041 if ((file
= fopen (filename
, "rb")) == NULL
)
6044 /* The gzip crc32 value is found in the [END-8, END-4] bytes of the
6045 file. See RFC 1952. */
6046 if (fseek (file
, -8, SEEK_END
) != 0)
6052 /* Read the CRC32. */
6053 if (fread (buf
, 1, 4, file
) != 4)
6059 /* Close the file. */
6062 val
= (buf
[0] & 0xFF) + ((buf
[1] & 0xFF) << 8) + ((buf
[2] & 0xFF) << 16)
6063 + ((buf
[3] & 0xFF) << 24);
6066 /* For debugging, the CRC value printed in hexadecimal should match
6067 the CRC printed by "zcat -l -v filename".
6068 printf("CRC of file %s is %x\n", filename, val); */
6074 /* Given module, dump it to disk. If there was an error while
6075 processing the module, dump_flag will be set to zero and we delete
6076 the module file, even if it was already there. */
6079 dump_module (const char *name
, int dump_flag
)
6082 char *filename
, *filename_tmp
;
6085 module_name
= gfc_get_string ("%s", name
);
6089 name
= submodule_name
;
6090 n
= strlen (name
) + strlen (SUBMODULE_EXTENSION
) + 1;
6093 n
= strlen (name
) + strlen (MODULE_EXTENSION
) + 1;
6095 if (gfc_option
.module_dir
!= NULL
)
6097 n
+= strlen (gfc_option
.module_dir
);
6098 filename
= (char *) alloca (n
);
6099 strcpy (filename
, gfc_option
.module_dir
);
6100 strcat (filename
, name
);
6104 filename
= (char *) alloca (n
);
6105 strcpy (filename
, name
);
6109 strcat (filename
, SUBMODULE_EXTENSION
);
6111 strcat (filename
, MODULE_EXTENSION
);
6113 /* Name of the temporary file used to write the module. */
6114 filename_tmp
= (char *) alloca (n
+ 1);
6115 strcpy (filename_tmp
, filename
);
6116 strcat (filename_tmp
, "0");
6118 /* There was an error while processing the module. We delete the
6119 module file, even if it was already there. */
6126 if (gfc_cpp_makedep ())
6127 gfc_cpp_add_target (filename
);
6129 /* Write the module to the temporary file. */
6130 module_fp
= gzopen (filename_tmp
, "w");
6131 if (module_fp
== NULL
)
6132 gfc_fatal_error ("Can't open module file %qs for writing at %C: %s",
6133 filename_tmp
, xstrerror (errno
));
6135 gzprintf (module_fp
, "GFORTRAN module version '%s' created from %s\n",
6136 MOD_VERSION
, gfc_source_file
);
6138 /* Write the module itself. */
6145 free_pi_tree (pi_root
);
6150 if (gzclose (module_fp
))
6151 gfc_fatal_error ("Error writing module file %qs for writing: %s",
6152 filename_tmp
, xstrerror (errno
));
6154 /* Read the CRC32 from the gzip trailers of the module files and
6156 if (!read_crc32_from_module_file (filename_tmp
, &crc
)
6157 || !read_crc32_from_module_file (filename
, &crc_old
)
6160 /* Module file have changed, replace the old one. */
6161 if (remove (filename
) && errno
!= ENOENT
)
6162 gfc_fatal_error ("Can't delete module file %qs: %s", filename
,
6164 if (rename (filename_tmp
, filename
))
6165 gfc_fatal_error ("Can't rename module file %qs to %qs: %s",
6166 filename_tmp
, filename
, xstrerror (errno
));
6170 if (remove (filename_tmp
))
6171 gfc_fatal_error ("Can't delete temporary module file %qs: %s",
6172 filename_tmp
, xstrerror (errno
));
6177 /* Suppress the output of a .smod file by module, if no module
6178 procedures have been seen. */
6179 static bool no_module_procedures
;
6182 check_for_module_procedures (gfc_symbol
*sym
)
6184 if (sym
&& sym
->attr
.module_procedure
)
6185 no_module_procedures
= false;
6190 gfc_dump_module (const char *name
, int dump_flag
)
6192 if (gfc_state_stack
->state
== COMP_SUBMODULE
)
6197 no_module_procedures
= true;
6198 gfc_traverse_ns (gfc_current_ns
, check_for_module_procedures
);
6200 dump_module (name
, dump_flag
);
6202 if (no_module_procedures
|| dump_smod
)
6205 /* Write a submodule file from a module. The 'dump_smod' flag switches
6206 off the check for PRIVATE entities. */
6208 submodule_name
= module_name
;
6209 dump_module (name
, dump_flag
);
6214 create_intrinsic_function (const char *name
, int id
,
6215 const char *modname
, intmod_id module
,
6216 bool subroutine
, gfc_symbol
*result_type
)
6218 gfc_intrinsic_sym
*isym
;
6219 gfc_symtree
*tmp_symtree
;
6222 tmp_symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, name
);
6225 if (tmp_symtree
->n
.sym
&& tmp_symtree
->n
.sym
->module
6226 && strcmp (modname
, tmp_symtree
->n
.sym
->module
) == 0)
6228 gfc_error ("Symbol %qs at %C already declared", name
);
6232 gfc_get_sym_tree (name
, gfc_current_ns
, &tmp_symtree
, false);
6233 sym
= tmp_symtree
->n
.sym
;
6237 gfc_isym_id isym_id
= gfc_isym_id_by_intmod (module
, id
);
6238 isym
= gfc_intrinsic_subroutine_by_id (isym_id
);
6239 sym
->attr
.subroutine
= 1;
6243 gfc_isym_id isym_id
= gfc_isym_id_by_intmod (module
, id
);
6244 isym
= gfc_intrinsic_function_by_id (isym_id
);
6246 sym
->attr
.function
= 1;
6249 sym
->ts
.type
= BT_DERIVED
;
6250 sym
->ts
.u
.derived
= result_type
;
6251 sym
->ts
.is_c_interop
= 1;
6252 isym
->ts
.f90_type
= BT_VOID
;
6253 isym
->ts
.type
= BT_DERIVED
;
6254 isym
->ts
.f90_type
= BT_VOID
;
6255 isym
->ts
.u
.derived
= result_type
;
6256 isym
->ts
.is_c_interop
= 1;
6261 sym
->attr
.flavor
= FL_PROCEDURE
;
6262 sym
->attr
.intrinsic
= 1;
6264 sym
->module
= gfc_get_string ("%s", modname
);
6265 sym
->attr
.use_assoc
= 1;
6266 sym
->from_intmod
= module
;
6267 sym
->intmod_sym_id
= id
;
6271 /* Import the intrinsic ISO_C_BINDING module, generating symbols in
6272 the current namespace for all named constants, pointer types, and
6273 procedures in the module unless the only clause was used or a rename
6274 list was provided. */
6277 import_iso_c_binding_module (void)
6279 gfc_symbol
*mod_sym
= NULL
, *return_type
;
6280 gfc_symtree
*mod_symtree
= NULL
, *tmp_symtree
;
6281 gfc_symtree
*c_ptr
= NULL
, *c_funptr
= NULL
;
6282 const char *iso_c_module_name
= "__iso_c_binding";
6285 bool want_c_ptr
= false, want_c_funptr
= false;
6287 /* Look only in the current namespace. */
6288 mod_symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, iso_c_module_name
);
6290 if (mod_symtree
== NULL
)
6292 /* symtree doesn't already exist in current namespace. */
6293 gfc_get_sym_tree (iso_c_module_name
, gfc_current_ns
, &mod_symtree
,
6296 if (mod_symtree
!= NULL
)
6297 mod_sym
= mod_symtree
->n
.sym
;
6299 gfc_internal_error ("import_iso_c_binding_module(): Unable to "
6300 "create symbol for %s", iso_c_module_name
);
6302 mod_sym
->attr
.flavor
= FL_MODULE
;
6303 mod_sym
->attr
.intrinsic
= 1;
6304 mod_sym
->module
= gfc_get_string ("%s", iso_c_module_name
);
6305 mod_sym
->from_intmod
= INTMOD_ISO_C_BINDING
;
6308 /* Check whether C_PTR or C_FUNPTR are in the include list, if so, load it;
6309 check also whether C_NULL_(FUN)PTR or C_(FUN)LOC are requested, which
6311 for (u
= gfc_rename_list
; u
; u
= u
->next
)
6313 if (strcmp (c_interop_kinds_table
[ISOCBINDING_NULL_PTR
].name
,
6316 else if (strcmp (c_interop_kinds_table
[ISOCBINDING_LOC
].name
,
6319 else if (strcmp (c_interop_kinds_table
[ISOCBINDING_NULL_FUNPTR
].name
,
6321 want_c_funptr
= true;
6322 else if (strcmp (c_interop_kinds_table
[ISOCBINDING_FUNLOC
].name
,
6324 want_c_funptr
= true;
6325 else if (strcmp (c_interop_kinds_table
[ISOCBINDING_PTR
].name
,
6328 c_ptr
= generate_isocbinding_symbol (iso_c_module_name
,
6329 (iso_c_binding_symbol
)
6331 u
->local_name
[0] ? u
->local_name
6335 else if (strcmp (c_interop_kinds_table
[ISOCBINDING_FUNPTR
].name
,
6339 = generate_isocbinding_symbol (iso_c_module_name
,
6340 (iso_c_binding_symbol
)
6342 u
->local_name
[0] ? u
->local_name
6348 if ((want_c_ptr
|| !only_flag
) && !c_ptr
)
6349 c_ptr
= generate_isocbinding_symbol (iso_c_module_name
,
6350 (iso_c_binding_symbol
)
6352 NULL
, NULL
, only_flag
);
6353 if ((want_c_funptr
|| !only_flag
) && !c_funptr
)
6354 c_funptr
= generate_isocbinding_symbol (iso_c_module_name
,
6355 (iso_c_binding_symbol
)
6357 NULL
, NULL
, only_flag
);
6359 /* Generate the symbols for the named constants representing
6360 the kinds for intrinsic data types. */
6361 for (i
= 0; i
< ISOCBINDING_NUMBER
; i
++)
6364 for (u
= gfc_rename_list
; u
; u
= u
->next
)
6365 if (strcmp (c_interop_kinds_table
[i
].name
, u
->use_name
) == 0)
6374 #define NAMED_FUNCTION(a,b,c,d) \
6376 not_in_std = (gfc_option.allow_std & d) == 0; \
6379 #define NAMED_SUBROUTINE(a,b,c,d) \
6381 not_in_std = (gfc_option.allow_std & d) == 0; \
6384 #define NAMED_INTCST(a,b,c,d) \
6386 not_in_std = (gfc_option.allow_std & d) == 0; \
6389 #define NAMED_REALCST(a,b,c,d) \
6391 not_in_std = (gfc_option.allow_std & d) == 0; \
6394 #define NAMED_CMPXCST(a,b,c,d) \
6396 not_in_std = (gfc_option.allow_std & d) == 0; \
6399 #include "iso-c-binding.def"
6407 gfc_error ("The symbol %qs, referenced at %L, is not "
6408 "in the selected standard", name
, &u
->where
);
6414 #define NAMED_FUNCTION(a,b,c,d) \
6416 if (a == ISOCBINDING_LOC) \
6417 return_type = c_ptr->n.sym; \
6418 else if (a == ISOCBINDING_FUNLOC) \
6419 return_type = c_funptr->n.sym; \
6421 return_type = NULL; \
6422 create_intrinsic_function (u->local_name[0] \
6423 ? u->local_name : u->use_name, \
6424 a, iso_c_module_name, \
6425 INTMOD_ISO_C_BINDING, false, \
6428 #define NAMED_SUBROUTINE(a,b,c,d) \
6430 create_intrinsic_function (u->local_name[0] ? u->local_name \
6432 a, iso_c_module_name, \
6433 INTMOD_ISO_C_BINDING, true, NULL); \
6435 #include "iso-c-binding.def"
6437 case ISOCBINDING_PTR
:
6438 case ISOCBINDING_FUNPTR
:
6439 /* Already handled above. */
6442 if (i
== ISOCBINDING_NULL_PTR
)
6443 tmp_symtree
= c_ptr
;
6444 else if (i
== ISOCBINDING_NULL_FUNPTR
)
6445 tmp_symtree
= c_funptr
;
6448 generate_isocbinding_symbol (iso_c_module_name
,
6449 (iso_c_binding_symbol
) i
,
6451 ? u
->local_name
: u
->use_name
,
6452 tmp_symtree
, false);
6456 if (!found
&& !only_flag
)
6458 /* Skip, if the symbol is not in the enabled standard. */
6461 #define NAMED_FUNCTION(a,b,c,d) \
6463 if ((gfc_option.allow_std & d) == 0) \
6466 #define NAMED_SUBROUTINE(a,b,c,d) \
6468 if ((gfc_option.allow_std & d) == 0) \
6471 #define NAMED_INTCST(a,b,c,d) \
6473 if ((gfc_option.allow_std & d) == 0) \
6476 #define NAMED_REALCST(a,b,c,d) \
6478 if ((gfc_option.allow_std & d) == 0) \
6481 #define NAMED_CMPXCST(a,b,c,d) \
6483 if ((gfc_option.allow_std & d) == 0) \
6486 #include "iso-c-binding.def"
6488 ; /* Not GFC_STD_* versioned. */
6493 #define NAMED_FUNCTION(a,b,c,d) \
6495 if (a == ISOCBINDING_LOC) \
6496 return_type = c_ptr->n.sym; \
6497 else if (a == ISOCBINDING_FUNLOC) \
6498 return_type = c_funptr->n.sym; \
6500 return_type = NULL; \
6501 create_intrinsic_function (b, a, iso_c_module_name, \
6502 INTMOD_ISO_C_BINDING, false, \
6505 #define NAMED_SUBROUTINE(a,b,c,d) \
6507 create_intrinsic_function (b, a, iso_c_module_name, \
6508 INTMOD_ISO_C_BINDING, true, NULL); \
6510 #include "iso-c-binding.def"
6512 case ISOCBINDING_PTR
:
6513 case ISOCBINDING_FUNPTR
:
6514 /* Already handled above. */
6517 if (i
== ISOCBINDING_NULL_PTR
)
6518 tmp_symtree
= c_ptr
;
6519 else if (i
== ISOCBINDING_NULL_FUNPTR
)
6520 tmp_symtree
= c_funptr
;
6523 generate_isocbinding_symbol (iso_c_module_name
,
6524 (iso_c_binding_symbol
) i
, NULL
,
6525 tmp_symtree
, false);
6530 for (u
= gfc_rename_list
; u
; u
= u
->next
)
6535 gfc_error ("Symbol %qs referenced at %L not found in intrinsic "
6536 "module ISO_C_BINDING", u
->use_name
, &u
->where
);
6541 /* Add an integer named constant from a given module. */
6544 create_int_parameter (const char *name
, int value
, const char *modname
,
6545 intmod_id module
, int id
)
6547 gfc_symtree
*tmp_symtree
;
6550 tmp_symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, name
);
6551 if (tmp_symtree
!= NULL
)
6553 if (strcmp (modname
, tmp_symtree
->n
.sym
->module
) == 0)
6556 gfc_error ("Symbol %qs already declared", name
);
6559 gfc_get_sym_tree (name
, gfc_current_ns
, &tmp_symtree
, false);
6560 sym
= tmp_symtree
->n
.sym
;
6562 sym
->module
= gfc_get_string ("%s", modname
);
6563 sym
->attr
.flavor
= FL_PARAMETER
;
6564 sym
->ts
.type
= BT_INTEGER
;
6565 sym
->ts
.kind
= gfc_default_integer_kind
;
6566 sym
->value
= gfc_get_int_expr (gfc_default_integer_kind
, NULL
, value
);
6567 sym
->attr
.use_assoc
= 1;
6568 sym
->from_intmod
= module
;
6569 sym
->intmod_sym_id
= id
;
6573 /* Value is already contained by the array constructor, but not
6577 create_int_parameter_array (const char *name
, int size
, gfc_expr
*value
,
6578 const char *modname
, intmod_id module
, int id
)
6580 gfc_symtree
*tmp_symtree
;
6583 tmp_symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, name
);
6584 if (tmp_symtree
!= NULL
)
6586 if (strcmp (modname
, tmp_symtree
->n
.sym
->module
) == 0)
6589 gfc_error ("Symbol %qs already declared", name
);
6592 gfc_get_sym_tree (name
, gfc_current_ns
, &tmp_symtree
, false);
6593 sym
= tmp_symtree
->n
.sym
;
6595 sym
->module
= gfc_get_string ("%s", modname
);
6596 sym
->attr
.flavor
= FL_PARAMETER
;
6597 sym
->ts
.type
= BT_INTEGER
;
6598 sym
->ts
.kind
= gfc_default_integer_kind
;
6599 sym
->attr
.use_assoc
= 1;
6600 sym
->from_intmod
= module
;
6601 sym
->intmod_sym_id
= id
;
6602 sym
->attr
.dimension
= 1;
6603 sym
->as
= gfc_get_array_spec ();
6605 sym
->as
->type
= AS_EXPLICIT
;
6606 sym
->as
->lower
[0] = gfc_get_int_expr (gfc_default_integer_kind
, NULL
, 1);
6607 sym
->as
->upper
[0] = gfc_get_int_expr (gfc_default_integer_kind
, NULL
, size
);
6610 sym
->value
->shape
= gfc_get_shape (1);
6611 mpz_init_set_ui (sym
->value
->shape
[0], size
);
6615 /* Add an derived type for a given module. */
6618 create_derived_type (const char *name
, const char *modname
,
6619 intmod_id module
, int id
)
6621 gfc_symtree
*tmp_symtree
;
6622 gfc_symbol
*sym
, *dt_sym
;
6623 gfc_interface
*intr
, *head
;
6625 tmp_symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, name
);
6626 if (tmp_symtree
!= NULL
)
6628 if (strcmp (modname
, tmp_symtree
->n
.sym
->module
) == 0)
6631 gfc_error ("Symbol %qs already declared", name
);
6634 gfc_get_sym_tree (name
, gfc_current_ns
, &tmp_symtree
, false);
6635 sym
= tmp_symtree
->n
.sym
;
6636 sym
->module
= gfc_get_string ("%s", modname
);
6637 sym
->from_intmod
= module
;
6638 sym
->intmod_sym_id
= id
;
6639 sym
->attr
.flavor
= FL_PROCEDURE
;
6640 sym
->attr
.function
= 1;
6641 sym
->attr
.generic
= 1;
6643 gfc_get_sym_tree (gfc_dt_upper_string (sym
->name
),
6644 gfc_current_ns
, &tmp_symtree
, false);
6645 dt_sym
= tmp_symtree
->n
.sym
;
6646 dt_sym
->name
= gfc_get_string ("%s", sym
->name
);
6647 dt_sym
->attr
.flavor
= FL_DERIVED
;
6648 dt_sym
->attr
.private_comp
= 1;
6649 dt_sym
->attr
.zero_comp
= 1;
6650 dt_sym
->attr
.use_assoc
= 1;
6651 dt_sym
->module
= gfc_get_string ("%s", modname
);
6652 dt_sym
->from_intmod
= module
;
6653 dt_sym
->intmod_sym_id
= id
;
6655 head
= sym
->generic
;
6656 intr
= gfc_get_interface ();
6658 intr
->where
= gfc_current_locus
;
6660 sym
->generic
= intr
;
6661 sym
->attr
.if_source
= IFSRC_DECL
;
6665 /* Read the contents of the module file into a temporary buffer. */
6668 read_module_to_tmpbuf ()
6670 /* We don't know the uncompressed size, so enlarge the buffer as
6676 module_content
= XNEWVEC (char, cursz
);
6680 int nread
= gzread (module_fp
, module_content
+ len
, rsize
);
6685 module_content
= XRESIZEVEC (char, module_content
, cursz
);
6686 rsize
= cursz
- len
;
6689 module_content
= XRESIZEVEC (char, module_content
, len
+ 1);
6690 module_content
[len
] = '\0';
6696 /* USE the ISO_FORTRAN_ENV intrinsic module. */
6699 use_iso_fortran_env_module (void)
6701 static char mod
[] = "iso_fortran_env";
6703 gfc_symbol
*mod_sym
;
6704 gfc_symtree
*mod_symtree
;
6708 intmod_sym symbol
[] = {
6709 #define NAMED_INTCST(a,b,c,d) { a, b, 0, d },
6710 #define NAMED_KINDARRAY(a,b,c,d) { a, b, 0, d },
6711 #define NAMED_DERIVED_TYPE(a,b,c,d) { a, b, 0, d },
6712 #define NAMED_FUNCTION(a,b,c,d) { a, b, c, d },
6713 #define NAMED_SUBROUTINE(a,b,c,d) { a, b, c, d },
6714 #include "iso-fortran-env.def"
6715 { ISOFORTRANENV_INVALID
, NULL
, -1234, 0 } };
6718 #define NAMED_INTCST(a,b,c,d) symbol[i++].value = c;
6719 #include "iso-fortran-env.def"
6721 /* Generate the symbol for the module itself. */
6722 mod_symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, mod
);
6723 if (mod_symtree
== NULL
)
6725 gfc_get_sym_tree (mod
, gfc_current_ns
, &mod_symtree
, false);
6726 gcc_assert (mod_symtree
);
6727 mod_sym
= mod_symtree
->n
.sym
;
6729 mod_sym
->attr
.flavor
= FL_MODULE
;
6730 mod_sym
->attr
.intrinsic
= 1;
6731 mod_sym
->module
= gfc_get_string ("%s", mod
);
6732 mod_sym
->from_intmod
= INTMOD_ISO_FORTRAN_ENV
;
6735 if (!mod_symtree
->n
.sym
->attr
.intrinsic
)
6736 gfc_error ("Use of intrinsic module %qs at %C conflicts with "
6737 "non-intrinsic module name used previously", mod
);
6739 /* Generate the symbols for the module integer named constants. */
6741 for (i
= 0; symbol
[i
].name
; i
++)
6744 for (u
= gfc_rename_list
; u
; u
= u
->next
)
6746 if (strcmp (symbol
[i
].name
, u
->use_name
) == 0)
6751 if (!gfc_notify_std (symbol
[i
].standard
, "The symbol %qs, "
6752 "referenced at %L, is not in the selected "
6753 "standard", symbol
[i
].name
, &u
->where
))
6756 if ((flag_default_integer
|| flag_default_real_8
)
6757 && symbol
[i
].id
== ISOFORTRANENV_NUMERIC_STORAGE_SIZE
)
6758 gfc_warning_now (0, "Use of the NUMERIC_STORAGE_SIZE named "
6759 "constant from intrinsic module "
6760 "ISO_FORTRAN_ENV at %L is incompatible with "
6761 "option %qs", &u
->where
,
6762 flag_default_integer
6763 ? "-fdefault-integer-8"
6764 : "-fdefault-real-8");
6765 switch (symbol
[i
].id
)
6767 #define NAMED_INTCST(a,b,c,d) \
6769 #include "iso-fortran-env.def"
6770 create_int_parameter (u
->local_name
[0] ? u
->local_name
6772 symbol
[i
].value
, mod
,
6773 INTMOD_ISO_FORTRAN_ENV
, symbol
[i
].id
);
6776 #define NAMED_KINDARRAY(a,b,KINDS,d) \
6778 expr = gfc_get_array_expr (BT_INTEGER, \
6779 gfc_default_integer_kind,\
6781 for (j = 0; KINDS[j].kind != 0; j++) \
6782 gfc_constructor_append_expr (&expr->value.constructor, \
6783 gfc_get_int_expr (gfc_default_integer_kind, NULL, \
6784 KINDS[j].kind), NULL); \
6785 create_int_parameter_array (u->local_name[0] ? u->local_name \
6788 INTMOD_ISO_FORTRAN_ENV, \
6791 #include "iso-fortran-env.def"
6793 #define NAMED_DERIVED_TYPE(a,b,TYPE,STD) \
6795 #include "iso-fortran-env.def"
6796 create_derived_type (u
->local_name
[0] ? u
->local_name
6798 mod
, INTMOD_ISO_FORTRAN_ENV
,
6802 #define NAMED_FUNCTION(a,b,c,d) \
6804 #include "iso-fortran-env.def"
6805 create_intrinsic_function (u
->local_name
[0] ? u
->local_name
6808 INTMOD_ISO_FORTRAN_ENV
, false,
6818 if (!found
&& !only_flag
)
6820 if ((gfc_option
.allow_std
& symbol
[i
].standard
) == 0)
6823 if ((flag_default_integer
|| flag_default_real_8
)
6824 && symbol
[i
].id
== ISOFORTRANENV_NUMERIC_STORAGE_SIZE
)
6826 "Use of the NUMERIC_STORAGE_SIZE named constant "
6827 "from intrinsic module ISO_FORTRAN_ENV at %C is "
6828 "incompatible with option %s",
6829 flag_default_integer
6830 ? "-fdefault-integer-8" : "-fdefault-real-8");
6832 switch (symbol
[i
].id
)
6834 #define NAMED_INTCST(a,b,c,d) \
6836 #include "iso-fortran-env.def"
6837 create_int_parameter (symbol
[i
].name
, symbol
[i
].value
, mod
,
6838 INTMOD_ISO_FORTRAN_ENV
, symbol
[i
].id
);
6841 #define NAMED_KINDARRAY(a,b,KINDS,d) \
6843 expr = gfc_get_array_expr (BT_INTEGER, gfc_default_integer_kind, \
6845 for (j = 0; KINDS[j].kind != 0; j++) \
6846 gfc_constructor_append_expr (&expr->value.constructor, \
6847 gfc_get_int_expr (gfc_default_integer_kind, NULL, \
6848 KINDS[j].kind), NULL); \
6849 create_int_parameter_array (symbol[i].name, j, expr, mod, \
6850 INTMOD_ISO_FORTRAN_ENV, symbol[i].id);\
6852 #include "iso-fortran-env.def"
6854 #define NAMED_DERIVED_TYPE(a,b,TYPE,STD) \
6856 #include "iso-fortran-env.def"
6857 create_derived_type (symbol
[i
].name
, mod
, INTMOD_ISO_FORTRAN_ENV
,
6861 #define NAMED_FUNCTION(a,b,c,d) \
6863 #include "iso-fortran-env.def"
6864 create_intrinsic_function (symbol
[i
].name
, symbol
[i
].id
, mod
,
6865 INTMOD_ISO_FORTRAN_ENV
, false,
6875 for (u
= gfc_rename_list
; u
; u
= u
->next
)
6880 gfc_error ("Symbol %qs referenced at %L not found in intrinsic "
6881 "module ISO_FORTRAN_ENV", u
->use_name
, &u
->where
);
6886 /* Process a USE directive. */
6889 gfc_use_module (gfc_use_list
*module
)
6894 gfc_symtree
*mod_symtree
;
6895 gfc_use_list
*use_stmt
;
6896 locus old_locus
= gfc_current_locus
;
6898 gfc_current_locus
= module
->where
;
6899 module_name
= module
->module_name
;
6900 gfc_rename_list
= module
->rename
;
6901 only_flag
= module
->only_flag
;
6902 current_intmod
= INTMOD_NONE
;
6905 gfc_warning_now (OPT_Wuse_without_only
,
6906 "USE statement at %C has no ONLY qualifier");
6908 if (gfc_state_stack
->state
== COMP_MODULE
6909 || module
->submodule_name
== NULL
)
6911 filename
= XALLOCAVEC (char, strlen (module_name
)
6912 + strlen (MODULE_EXTENSION
) + 1);
6913 strcpy (filename
, module_name
);
6914 strcat (filename
, MODULE_EXTENSION
);
6918 filename
= XALLOCAVEC (char, strlen (module
->submodule_name
)
6919 + strlen (SUBMODULE_EXTENSION
) + 1);
6920 strcpy (filename
, module
->submodule_name
);
6921 strcat (filename
, SUBMODULE_EXTENSION
);
6924 /* First, try to find an non-intrinsic module, unless the USE statement
6925 specified that the module is intrinsic. */
6927 if (!module
->intrinsic
)
6928 module_fp
= gzopen_included_file (filename
, true, true);
6930 /* Then, see if it's an intrinsic one, unless the USE statement
6931 specified that the module is non-intrinsic. */
6932 if (module_fp
== NULL
&& !module
->non_intrinsic
)
6934 if (strcmp (module_name
, "iso_fortran_env") == 0
6935 && gfc_notify_std (GFC_STD_F2003
, "ISO_FORTRAN_ENV "
6936 "intrinsic module at %C"))
6938 use_iso_fortran_env_module ();
6939 free_rename (module
->rename
);
6940 module
->rename
= NULL
;
6941 gfc_current_locus
= old_locus
;
6942 module
->intrinsic
= true;
6946 if (strcmp (module_name
, "iso_c_binding") == 0
6947 && gfc_notify_std (GFC_STD_F2003
, "ISO_C_BINDING module at %C"))
6949 import_iso_c_binding_module();
6950 free_rename (module
->rename
);
6951 module
->rename
= NULL
;
6952 gfc_current_locus
= old_locus
;
6953 module
->intrinsic
= true;
6957 module_fp
= gzopen_intrinsic_module (filename
);
6959 if (module_fp
== NULL
&& module
->intrinsic
)
6960 gfc_fatal_error ("Can't find an intrinsic module named %qs at %C",
6963 /* Check for the IEEE modules, so we can mark their symbols
6964 accordingly when we read them. */
6965 if (strcmp (module_name
, "ieee_features") == 0
6966 && gfc_notify_std (GFC_STD_F2003
, "IEEE_FEATURES module at %C"))
6968 current_intmod
= INTMOD_IEEE_FEATURES
;
6970 else if (strcmp (module_name
, "ieee_exceptions") == 0
6971 && gfc_notify_std (GFC_STD_F2003
,
6972 "IEEE_EXCEPTIONS module at %C"))
6974 current_intmod
= INTMOD_IEEE_EXCEPTIONS
;
6976 else if (strcmp (module_name
, "ieee_arithmetic") == 0
6977 && gfc_notify_std (GFC_STD_F2003
,
6978 "IEEE_ARITHMETIC module at %C"))
6980 current_intmod
= INTMOD_IEEE_ARITHMETIC
;
6984 if (module_fp
== NULL
)
6986 if (gfc_state_stack
->state
!= COMP_SUBMODULE
6987 && module
->submodule_name
== NULL
)
6988 gfc_fatal_error ("Can't open module file %qs for reading at %C: %s",
6989 filename
, xstrerror (errno
));
6991 gfc_fatal_error ("Module file %qs has not been generated, either "
6992 "because the module does not contain a MODULE "
6993 "PROCEDURE or there is an error in the module.",
6997 /* Check that we haven't already USEd an intrinsic module with the
7000 mod_symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, module_name
);
7001 if (mod_symtree
&& mod_symtree
->n
.sym
->attr
.intrinsic
)
7002 gfc_error ("Use of non-intrinsic module %qs at %C conflicts with "
7003 "intrinsic module name used previously", module_name
);
7010 read_module_to_tmpbuf ();
7011 gzclose (module_fp
);
7013 /* Skip the first line of the module, after checking that this is
7014 a gfortran module file. */
7020 bad_module ("Unexpected end of module");
7023 if ((start
== 1 && strcmp (atom_name
, "GFORTRAN") != 0)
7024 || (start
== 2 && strcmp (atom_name
, " module") != 0))
7025 gfc_fatal_error ("File %qs opened at %C is not a GNU Fortran"
7026 " module file", filename
);
7029 if (strcmp (atom_name
, " version") != 0
7030 || module_char () != ' '
7031 || parse_atom () != ATOM_STRING
7032 || strcmp (atom_string
, MOD_VERSION
))
7033 gfc_fatal_error ("Cannot read module file %qs opened at %C,"
7034 " because it was created by a different"
7035 " version of GNU Fortran", filename
);
7044 /* Make sure we're not reading the same module that we may be building. */
7045 for (p
= gfc_state_stack
; p
; p
= p
->previous
)
7046 if ((p
->state
== COMP_MODULE
|| p
->state
== COMP_SUBMODULE
)
7047 && strcmp (p
->sym
->name
, module_name
) == 0)
7048 gfc_fatal_error ("Can't USE the same %smodule we're building",
7049 p
->state
== COMP_SUBMODULE
? "sub" : "");
7052 init_true_name_tree ();
7056 free_true_name (true_name_root
);
7057 true_name_root
= NULL
;
7059 free_pi_tree (pi_root
);
7062 XDELETEVEC (module_content
);
7063 module_content
= NULL
;
7065 use_stmt
= gfc_get_use_list ();
7066 *use_stmt
= *module
;
7067 use_stmt
->next
= gfc_current_ns
->use_stmts
;
7068 gfc_current_ns
->use_stmts
= use_stmt
;
7070 gfc_current_locus
= old_locus
;
7074 /* Remove duplicated intrinsic operators from the rename list. */
7077 rename_list_remove_duplicate (gfc_use_rename
*list
)
7079 gfc_use_rename
*seek
, *last
;
7081 for (; list
; list
= list
->next
)
7082 if (list
->op
!= INTRINSIC_USER
&& list
->op
!= INTRINSIC_NONE
)
7085 for (seek
= list
->next
; seek
; seek
= last
->next
)
7087 if (list
->op
== seek
->op
)
7089 last
->next
= seek
->next
;
7099 /* Process all USE directives. */
7102 gfc_use_modules (void)
7104 gfc_use_list
*next
, *seek
, *last
;
7106 for (next
= module_list
; next
; next
= next
->next
)
7108 bool non_intrinsic
= next
->non_intrinsic
;
7109 bool intrinsic
= next
->intrinsic
;
7110 bool neither
= !non_intrinsic
&& !intrinsic
;
7112 for (seek
= next
->next
; seek
; seek
= seek
->next
)
7114 if (next
->module_name
!= seek
->module_name
)
7117 if (seek
->non_intrinsic
)
7118 non_intrinsic
= true;
7119 else if (seek
->intrinsic
)
7125 if (intrinsic
&& neither
&& !non_intrinsic
)
7130 filename
= XALLOCAVEC (char,
7131 strlen (next
->module_name
)
7132 + strlen (MODULE_EXTENSION
) + 1);
7133 strcpy (filename
, next
->module_name
);
7134 strcat (filename
, MODULE_EXTENSION
);
7135 fp
= gfc_open_included_file (filename
, true, true);
7138 non_intrinsic
= true;
7144 for (seek
= next
->next
; seek
; seek
= last
->next
)
7146 if (next
->module_name
!= seek
->module_name
)
7152 if ((!next
->intrinsic
&& !seek
->intrinsic
)
7153 || (next
->intrinsic
&& seek
->intrinsic
)
7156 if (!seek
->only_flag
)
7157 next
->only_flag
= false;
7160 gfc_use_rename
*r
= seek
->rename
;
7163 r
->next
= next
->rename
;
7164 next
->rename
= seek
->rename
;
7166 last
->next
= seek
->next
;
7174 for (; module_list
; module_list
= next
)
7176 next
= module_list
->next
;
7177 rename_list_remove_duplicate (module_list
->rename
);
7178 gfc_use_module (module_list
);
7181 gfc_rename_list
= NULL
;
7186 gfc_free_use_stmts (gfc_use_list
*use_stmts
)
7189 for (; use_stmts
; use_stmts
= next
)
7191 gfc_use_rename
*next_rename
;
7193 for (; use_stmts
->rename
; use_stmts
->rename
= next_rename
)
7195 next_rename
= use_stmts
->rename
->next
;
7196 free (use_stmts
->rename
);
7198 next
= use_stmts
->next
;
7205 gfc_module_init_2 (void)
7207 last_atom
= ATOM_LPAREN
;
7208 gfc_rename_list
= NULL
;
7214 gfc_module_done_2 (void)
7216 free_rename (gfc_rename_list
);
7217 gfc_rename_list
= NULL
;