1 /* Handle modules, which amounts to loading and saving symbols and
2 their attendant structures.
3 Copyright (C) 2000-2018 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
);
146 HOST_WIDE_INT integer
;
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 (HOST_WIDE_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 (HOST_WIDE_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 HOST_WIDE_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 an integer. Should fit in a HOST_WIDE_INT. */
1281 parse_integer (int c
)
1290 module_unget_char ();
1294 atom_int
= 10 * atom_int
+ c
- '0';
1316 if (!ISALNUM (c
) && c
!= '_' && c
!= '-')
1318 module_unget_char ();
1323 if (++len
> GFC_MAX_SYMBOL_LEN
)
1324 bad_module ("Name too long");
1332 /* Read the next atom in the module's input stream. */
1343 while (c
== ' ' || c
== '\r' || c
== '\n');
1368 return ATOM_INTEGER
;
1426 bad_module ("Bad name");
1433 /* Peek at the next atom on the input. */
1444 while (c
== ' ' || c
== '\r' || c
== '\n');
1449 module_unget_char ();
1453 module_unget_char ();
1457 module_unget_char ();
1470 module_unget_char ();
1471 return ATOM_INTEGER
;
1525 module_unget_char ();
1529 bad_module ("Bad name");
1534 /* Read the next atom from the input, requiring that it be a
1538 require_atom (atom_type type
)
1544 column
= module_column
;
1553 p
= _("Expected name");
1556 p
= _("Expected left parenthesis");
1559 p
= _("Expected right parenthesis");
1562 p
= _("Expected integer");
1565 p
= _("Expected string");
1568 gfc_internal_error ("require_atom(): bad atom type required");
1571 module_column
= column
;
1578 /* Given a pointer to an mstring array, require that the current input
1579 be one of the strings in the array. We return the enum value. */
1582 find_enum (const mstring
*m
)
1586 i
= gfc_string2code (m
, atom_name
);
1590 bad_module ("find_enum(): Enum not found");
1596 /* Read a string. The caller is responsible for freeing. */
1602 require_atom (ATOM_STRING
);
1609 /**************** Module output subroutines ***************************/
1611 /* Output a character to a module file. */
1614 write_char (char out
)
1616 if (gzputc (module_fp
, out
) == EOF
)
1617 gfc_fatal_error ("Error writing modules file: %s", xstrerror (errno
));
1629 /* Write an atom to a module. The line wrapping isn't perfect, but it
1630 should work most of the time. This isn't that big of a deal, since
1631 the file really isn't meant to be read by people anyway. */
1634 write_atom (atom_type atom
, const void *v
)
1638 /* Workaround -Wmaybe-uninitialized false positive during
1639 profiledbootstrap by initializing them. */
1641 HOST_WIDE_INT i
= 0;
1648 p
= (const char *) v
;
1660 i
= *((const HOST_WIDE_INT
*) v
);
1662 snprintf (buffer
, sizeof (buffer
), HOST_WIDE_INT_PRINT_DEC
, i
);
1667 gfc_internal_error ("write_atom(): Trying to write dab atom");
1671 if(p
== NULL
|| *p
== '\0')
1676 if (atom
!= ATOM_RPAREN
)
1678 if (module_column
+ len
> 72)
1683 if (last_atom
!= ATOM_LPAREN
&& module_column
!= 1)
1688 if (atom
== ATOM_STRING
)
1691 while (p
!= NULL
&& *p
)
1693 if (atom
== ATOM_STRING
&& *p
== '\'')
1698 if (atom
== ATOM_STRING
)
1706 /***************** Mid-level I/O subroutines *****************/
1708 /* These subroutines let their caller read or write atoms without
1709 caring about which of the two is actually happening. This lets a
1710 subroutine concentrate on the actual format of the data being
1713 static void mio_expr (gfc_expr
**);
1714 pointer_info
*mio_symbol_ref (gfc_symbol
**);
1715 pointer_info
*mio_interface_rest (gfc_interface
**);
1716 static void mio_symtree_ref (gfc_symtree
**);
1718 /* Read or write an enumerated value. On writing, we return the input
1719 value for the convenience of callers. We avoid using an integer
1720 pointer because enums are sometimes inside bitfields. */
1723 mio_name (int t
, const mstring
*m
)
1725 if (iomode
== IO_OUTPUT
)
1726 write_atom (ATOM_NAME
, gfc_code2string (m
, t
));
1729 require_atom (ATOM_NAME
);
1736 /* Specialization of mio_name. */
1738 #define DECL_MIO_NAME(TYPE) \
1739 static inline TYPE \
1740 MIO_NAME(TYPE) (TYPE t, const mstring *m) \
1742 return (TYPE) mio_name ((int) t, m); \
1744 #define MIO_NAME(TYPE) mio_name_##TYPE
1749 if (iomode
== IO_OUTPUT
)
1750 write_atom (ATOM_LPAREN
, NULL
);
1752 require_atom (ATOM_LPAREN
);
1759 if (iomode
== IO_OUTPUT
)
1760 write_atom (ATOM_RPAREN
, NULL
);
1762 require_atom (ATOM_RPAREN
);
1767 mio_integer (int *ip
)
1769 if (iomode
== IO_OUTPUT
)
1771 HOST_WIDE_INT hwi
= *ip
;
1772 write_atom (ATOM_INTEGER
, &hwi
);
1776 require_atom (ATOM_INTEGER
);
1782 mio_hwi (HOST_WIDE_INT
*hwi
)
1784 if (iomode
== IO_OUTPUT
)
1785 write_atom (ATOM_INTEGER
, hwi
);
1788 require_atom (ATOM_INTEGER
);
1794 /* Read or write a gfc_intrinsic_op value. */
1797 mio_intrinsic_op (gfc_intrinsic_op
* op
)
1799 /* FIXME: Would be nicer to do this via the operators symbolic name. */
1800 if (iomode
== IO_OUTPUT
)
1802 HOST_WIDE_INT converted
= (HOST_WIDE_INT
) *op
;
1803 write_atom (ATOM_INTEGER
, &converted
);
1807 require_atom (ATOM_INTEGER
);
1808 *op
= (gfc_intrinsic_op
) atom_int
;
1813 /* Read or write a character pointer that points to a string on the heap. */
1816 mio_allocated_string (const char *s
)
1818 if (iomode
== IO_OUTPUT
)
1820 write_atom (ATOM_STRING
, s
);
1825 require_atom (ATOM_STRING
);
1831 /* Functions for quoting and unquoting strings. */
1834 quote_string (const gfc_char_t
*s
, const size_t slength
)
1836 const gfc_char_t
*p
;
1840 /* Calculate the length we'll need: a backslash takes two ("\\"),
1841 non-printable characters take 10 ("\Uxxxxxxxx") and others take 1. */
1842 for (p
= s
, i
= 0; i
< slength
; p
++, i
++)
1846 else if (!gfc_wide_is_printable (*p
))
1852 q
= res
= XCNEWVEC (char, len
+ 1);
1853 for (p
= s
, i
= 0; i
< slength
; p
++, i
++)
1856 *q
++ = '\\', *q
++ = '\\';
1857 else if (!gfc_wide_is_printable (*p
))
1859 sprintf (q
, "\\U%08" HOST_WIDE_INT_PRINT
"x",
1860 (unsigned HOST_WIDE_INT
) *p
);
1864 *q
++ = (unsigned char) *p
;
1872 unquote_string (const char *s
)
1878 for (p
= s
, len
= 0; *p
; p
++, len
++)
1885 else if (p
[1] == 'U')
1886 p
+= 9; /* That is a "\U????????". */
1888 gfc_internal_error ("unquote_string(): got bad string");
1891 res
= gfc_get_wide_string (len
+ 1);
1892 for (i
= 0, p
= s
; i
< len
; i
++, p
++)
1897 res
[i
] = (unsigned char) *p
;
1898 else if (p
[1] == '\\')
1900 res
[i
] = (unsigned char) '\\';
1905 /* We read the 8-digits hexadecimal constant that follows. */
1910 gcc_assert (p
[1] == 'U');
1911 for (j
= 0; j
< 8; j
++)
1914 gcc_assert (sscanf (&p
[j
+2], "%01x", &n
) == 1);
1928 /* Read or write a character pointer that points to a wide string on the
1929 heap, performing quoting/unquoting of nonprintable characters using the
1930 form \U???????? (where each ? is a hexadecimal digit).
1931 Length is the length of the string, only known and used in output mode. */
1933 static const gfc_char_t
*
1934 mio_allocated_wide_string (const gfc_char_t
*s
, const size_t length
)
1936 if (iomode
== IO_OUTPUT
)
1938 char *quoted
= quote_string (s
, length
);
1939 write_atom (ATOM_STRING
, quoted
);
1945 gfc_char_t
*unquoted
;
1947 require_atom (ATOM_STRING
);
1948 unquoted
= unquote_string (atom_string
);
1955 /* Read or write a string that is in static memory. */
1958 mio_pool_string (const char **stringp
)
1960 /* TODO: one could write the string only once, and refer to it via a
1963 /* As a special case we have to deal with a NULL string. This
1964 happens for the 'module' member of 'gfc_symbol's that are not in a
1965 module. We read / write these as the empty string. */
1966 if (iomode
== IO_OUTPUT
)
1968 const char *p
= *stringp
== NULL
? "" : *stringp
;
1969 write_atom (ATOM_STRING
, p
);
1973 require_atom (ATOM_STRING
);
1974 *stringp
= (atom_string
[0] == '\0'
1975 ? NULL
: gfc_get_string ("%s", atom_string
));
1981 /* Read or write a string that is inside of some already-allocated
1985 mio_internal_string (char *string
)
1987 if (iomode
== IO_OUTPUT
)
1988 write_atom (ATOM_STRING
, string
);
1991 require_atom (ATOM_STRING
);
1992 strcpy (string
, atom_string
);
1999 { AB_ALLOCATABLE
, AB_DIMENSION
, AB_EXTERNAL
, AB_INTRINSIC
, AB_OPTIONAL
,
2000 AB_POINTER
, AB_TARGET
, AB_DUMMY
, AB_RESULT
, AB_DATA
,
2001 AB_IN_NAMELIST
, AB_IN_COMMON
, AB_FUNCTION
, AB_SUBROUTINE
, AB_SEQUENCE
,
2002 AB_ELEMENTAL
, AB_PURE
, AB_RECURSIVE
, AB_GENERIC
, AB_ALWAYS_EXPLICIT
,
2003 AB_CRAY_POINTER
, AB_CRAY_POINTEE
, AB_THREADPRIVATE
,
2004 AB_ALLOC_COMP
, AB_POINTER_COMP
, AB_PROC_POINTER_COMP
, AB_PRIVATE_COMP
,
2005 AB_VALUE
, AB_VOLATILE
, AB_PROTECTED
, AB_LOCK_COMP
, AB_EVENT_COMP
,
2006 AB_IS_BIND_C
, AB_IS_C_INTEROP
, AB_IS_ISO_C
, AB_ABSTRACT
, AB_ZERO_COMP
,
2007 AB_IS_CLASS
, AB_PROCEDURE
, AB_PROC_POINTER
, AB_ASYNCHRONOUS
, AB_CODIMENSION
,
2008 AB_COARRAY_COMP
, AB_VTYPE
, AB_VTAB
, AB_CONTIGUOUS
, AB_CLASS_POINTER
,
2009 AB_IMPLICIT_PURE
, AB_ARTIFICIAL
, AB_UNLIMITED_POLY
, AB_OMP_DECLARE_TARGET
,
2010 AB_ARRAY_OUTER_DEPENDENCY
, AB_MODULE_PROCEDURE
, AB_OACC_DECLARE_CREATE
,
2011 AB_OACC_DECLARE_COPYIN
, AB_OACC_DECLARE_DEVICEPTR
,
2012 AB_OACC_DECLARE_DEVICE_RESIDENT
, AB_OACC_DECLARE_LINK
,
2013 AB_OMP_DECLARE_TARGET_LINK
, AB_PDT_KIND
, AB_PDT_LEN
, AB_PDT_TYPE
,
2014 AB_PDT_TEMPLATE
, AB_PDT_ARRAY
, AB_PDT_STRING
2017 static const mstring attr_bits
[] =
2019 minit ("ALLOCATABLE", AB_ALLOCATABLE
),
2020 minit ("ARTIFICIAL", AB_ARTIFICIAL
),
2021 minit ("ASYNCHRONOUS", AB_ASYNCHRONOUS
),
2022 minit ("DIMENSION", AB_DIMENSION
),
2023 minit ("CODIMENSION", AB_CODIMENSION
),
2024 minit ("CONTIGUOUS", AB_CONTIGUOUS
),
2025 minit ("EXTERNAL", AB_EXTERNAL
),
2026 minit ("INTRINSIC", AB_INTRINSIC
),
2027 minit ("OPTIONAL", AB_OPTIONAL
),
2028 minit ("POINTER", AB_POINTER
),
2029 minit ("VOLATILE", AB_VOLATILE
),
2030 minit ("TARGET", AB_TARGET
),
2031 minit ("THREADPRIVATE", AB_THREADPRIVATE
),
2032 minit ("DUMMY", AB_DUMMY
),
2033 minit ("RESULT", AB_RESULT
),
2034 minit ("DATA", AB_DATA
),
2035 minit ("IN_NAMELIST", AB_IN_NAMELIST
),
2036 minit ("IN_COMMON", AB_IN_COMMON
),
2037 minit ("FUNCTION", AB_FUNCTION
),
2038 minit ("SUBROUTINE", AB_SUBROUTINE
),
2039 minit ("SEQUENCE", AB_SEQUENCE
),
2040 minit ("ELEMENTAL", AB_ELEMENTAL
),
2041 minit ("PURE", AB_PURE
),
2042 minit ("RECURSIVE", AB_RECURSIVE
),
2043 minit ("GENERIC", AB_GENERIC
),
2044 minit ("ALWAYS_EXPLICIT", AB_ALWAYS_EXPLICIT
),
2045 minit ("CRAY_POINTER", AB_CRAY_POINTER
),
2046 minit ("CRAY_POINTEE", AB_CRAY_POINTEE
),
2047 minit ("IS_BIND_C", AB_IS_BIND_C
),
2048 minit ("IS_C_INTEROP", AB_IS_C_INTEROP
),
2049 minit ("IS_ISO_C", AB_IS_ISO_C
),
2050 minit ("VALUE", AB_VALUE
),
2051 minit ("ALLOC_COMP", AB_ALLOC_COMP
),
2052 minit ("COARRAY_COMP", AB_COARRAY_COMP
),
2053 minit ("LOCK_COMP", AB_LOCK_COMP
),
2054 minit ("EVENT_COMP", AB_EVENT_COMP
),
2055 minit ("POINTER_COMP", AB_POINTER_COMP
),
2056 minit ("PROC_POINTER_COMP", AB_PROC_POINTER_COMP
),
2057 minit ("PRIVATE_COMP", AB_PRIVATE_COMP
),
2058 minit ("ZERO_COMP", AB_ZERO_COMP
),
2059 minit ("PROTECTED", AB_PROTECTED
),
2060 minit ("ABSTRACT", AB_ABSTRACT
),
2061 minit ("IS_CLASS", AB_IS_CLASS
),
2062 minit ("PROCEDURE", AB_PROCEDURE
),
2063 minit ("PROC_POINTER", AB_PROC_POINTER
),
2064 minit ("VTYPE", AB_VTYPE
),
2065 minit ("VTAB", AB_VTAB
),
2066 minit ("CLASS_POINTER", AB_CLASS_POINTER
),
2067 minit ("IMPLICIT_PURE", AB_IMPLICIT_PURE
),
2068 minit ("UNLIMITED_POLY", AB_UNLIMITED_POLY
),
2069 minit ("OMP_DECLARE_TARGET", AB_OMP_DECLARE_TARGET
),
2070 minit ("ARRAY_OUTER_DEPENDENCY", AB_ARRAY_OUTER_DEPENDENCY
),
2071 minit ("MODULE_PROCEDURE", AB_MODULE_PROCEDURE
),
2072 minit ("OACC_DECLARE_CREATE", AB_OACC_DECLARE_CREATE
),
2073 minit ("OACC_DECLARE_COPYIN", AB_OACC_DECLARE_COPYIN
),
2074 minit ("OACC_DECLARE_DEVICEPTR", AB_OACC_DECLARE_DEVICEPTR
),
2075 minit ("OACC_DECLARE_DEVICE_RESIDENT", AB_OACC_DECLARE_DEVICE_RESIDENT
),
2076 minit ("OACC_DECLARE_LINK", AB_OACC_DECLARE_LINK
),
2077 minit ("OMP_DECLARE_TARGET_LINK", AB_OMP_DECLARE_TARGET_LINK
),
2078 minit ("PDT_KIND", AB_PDT_KIND
),
2079 minit ("PDT_LEN", AB_PDT_LEN
),
2080 minit ("PDT_TYPE", AB_PDT_TYPE
),
2081 minit ("PDT_TEMPLATE", AB_PDT_TEMPLATE
),
2082 minit ("PDT_ARRAY", AB_PDT_ARRAY
),
2083 minit ("PDT_STRING", AB_PDT_STRING
),
2087 /* For binding attributes. */
2088 static const mstring binding_passing
[] =
2091 minit ("NOPASS", 1),
2094 static const mstring binding_overriding
[] =
2096 minit ("OVERRIDABLE", 0),
2097 minit ("NON_OVERRIDABLE", 1),
2098 minit ("DEFERRED", 2),
2101 static const mstring binding_generic
[] =
2103 minit ("SPECIFIC", 0),
2104 minit ("GENERIC", 1),
2107 static const mstring binding_ppc
[] =
2109 minit ("NO_PPC", 0),
2114 /* Specialization of mio_name. */
2115 DECL_MIO_NAME (ab_attribute
)
2116 DECL_MIO_NAME (ar_type
)
2117 DECL_MIO_NAME (array_type
)
2119 DECL_MIO_NAME (expr_t
)
2120 DECL_MIO_NAME (gfc_access
)
2121 DECL_MIO_NAME (gfc_intrinsic_op
)
2122 DECL_MIO_NAME (ifsrc
)
2123 DECL_MIO_NAME (save_state
)
2124 DECL_MIO_NAME (procedure_type
)
2125 DECL_MIO_NAME (ref_type
)
2126 DECL_MIO_NAME (sym_flavor
)
2127 DECL_MIO_NAME (sym_intent
)
2128 #undef DECL_MIO_NAME
2130 /* Symbol attributes are stored in list with the first three elements
2131 being the enumerated fields, while the remaining elements (if any)
2132 indicate the individual attribute bits. The access field is not
2133 saved-- it controls what symbols are exported when a module is
2137 mio_symbol_attribute (symbol_attribute
*attr
)
2140 unsigned ext_attr
,extension_level
;
2144 attr
->flavor
= MIO_NAME (sym_flavor
) (attr
->flavor
, flavors
);
2145 attr
->intent
= MIO_NAME (sym_intent
) (attr
->intent
, intents
);
2146 attr
->proc
= MIO_NAME (procedure_type
) (attr
->proc
, procedures
);
2147 attr
->if_source
= MIO_NAME (ifsrc
) (attr
->if_source
, ifsrc_types
);
2148 attr
->save
= MIO_NAME (save_state
) (attr
->save
, save_status
);
2150 ext_attr
= attr
->ext_attr
;
2151 mio_integer ((int *) &ext_attr
);
2152 attr
->ext_attr
= ext_attr
;
2154 extension_level
= attr
->extension
;
2155 mio_integer ((int *) &extension_level
);
2156 attr
->extension
= extension_level
;
2158 if (iomode
== IO_OUTPUT
)
2160 if (attr
->allocatable
)
2161 MIO_NAME (ab_attribute
) (AB_ALLOCATABLE
, attr_bits
);
2162 if (attr
->artificial
)
2163 MIO_NAME (ab_attribute
) (AB_ARTIFICIAL
, attr_bits
);
2164 if (attr
->asynchronous
)
2165 MIO_NAME (ab_attribute
) (AB_ASYNCHRONOUS
, attr_bits
);
2166 if (attr
->dimension
)
2167 MIO_NAME (ab_attribute
) (AB_DIMENSION
, attr_bits
);
2168 if (attr
->codimension
)
2169 MIO_NAME (ab_attribute
) (AB_CODIMENSION
, attr_bits
);
2170 if (attr
->contiguous
)
2171 MIO_NAME (ab_attribute
) (AB_CONTIGUOUS
, attr_bits
);
2173 MIO_NAME (ab_attribute
) (AB_EXTERNAL
, attr_bits
);
2174 if (attr
->intrinsic
)
2175 MIO_NAME (ab_attribute
) (AB_INTRINSIC
, attr_bits
);
2177 MIO_NAME (ab_attribute
) (AB_OPTIONAL
, attr_bits
);
2179 MIO_NAME (ab_attribute
) (AB_POINTER
, attr_bits
);
2180 if (attr
->class_pointer
)
2181 MIO_NAME (ab_attribute
) (AB_CLASS_POINTER
, attr_bits
);
2182 if (attr
->is_protected
)
2183 MIO_NAME (ab_attribute
) (AB_PROTECTED
, attr_bits
);
2185 MIO_NAME (ab_attribute
) (AB_VALUE
, attr_bits
);
2186 if (attr
->volatile_
)
2187 MIO_NAME (ab_attribute
) (AB_VOLATILE
, attr_bits
);
2189 MIO_NAME (ab_attribute
) (AB_TARGET
, attr_bits
);
2190 if (attr
->threadprivate
)
2191 MIO_NAME (ab_attribute
) (AB_THREADPRIVATE
, attr_bits
);
2193 MIO_NAME (ab_attribute
) (AB_DUMMY
, attr_bits
);
2195 MIO_NAME (ab_attribute
) (AB_RESULT
, attr_bits
);
2196 /* We deliberately don't preserve the "entry" flag. */
2199 MIO_NAME (ab_attribute
) (AB_DATA
, attr_bits
);
2200 if (attr
->in_namelist
)
2201 MIO_NAME (ab_attribute
) (AB_IN_NAMELIST
, attr_bits
);
2202 if (attr
->in_common
)
2203 MIO_NAME (ab_attribute
) (AB_IN_COMMON
, attr_bits
);
2206 MIO_NAME (ab_attribute
) (AB_FUNCTION
, attr_bits
);
2207 if (attr
->subroutine
)
2208 MIO_NAME (ab_attribute
) (AB_SUBROUTINE
, attr_bits
);
2210 MIO_NAME (ab_attribute
) (AB_GENERIC
, attr_bits
);
2212 MIO_NAME (ab_attribute
) (AB_ABSTRACT
, attr_bits
);
2215 MIO_NAME (ab_attribute
) (AB_SEQUENCE
, attr_bits
);
2216 if (attr
->elemental
)
2217 MIO_NAME (ab_attribute
) (AB_ELEMENTAL
, attr_bits
);
2219 MIO_NAME (ab_attribute
) (AB_PURE
, attr_bits
);
2220 if (attr
->implicit_pure
)
2221 MIO_NAME (ab_attribute
) (AB_IMPLICIT_PURE
, attr_bits
);
2222 if (attr
->unlimited_polymorphic
)
2223 MIO_NAME (ab_attribute
) (AB_UNLIMITED_POLY
, attr_bits
);
2224 if (attr
->recursive
)
2225 MIO_NAME (ab_attribute
) (AB_RECURSIVE
, attr_bits
);
2226 if (attr
->always_explicit
)
2227 MIO_NAME (ab_attribute
) (AB_ALWAYS_EXPLICIT
, attr_bits
);
2228 if (attr
->cray_pointer
)
2229 MIO_NAME (ab_attribute
) (AB_CRAY_POINTER
, attr_bits
);
2230 if (attr
->cray_pointee
)
2231 MIO_NAME (ab_attribute
) (AB_CRAY_POINTEE
, attr_bits
);
2232 if (attr
->is_bind_c
)
2233 MIO_NAME(ab_attribute
) (AB_IS_BIND_C
, attr_bits
);
2234 if (attr
->is_c_interop
)
2235 MIO_NAME(ab_attribute
) (AB_IS_C_INTEROP
, attr_bits
);
2237 MIO_NAME(ab_attribute
) (AB_IS_ISO_C
, attr_bits
);
2238 if (attr
->alloc_comp
)
2239 MIO_NAME (ab_attribute
) (AB_ALLOC_COMP
, attr_bits
);
2240 if (attr
->pointer_comp
)
2241 MIO_NAME (ab_attribute
) (AB_POINTER_COMP
, attr_bits
);
2242 if (attr
->proc_pointer_comp
)
2243 MIO_NAME (ab_attribute
) (AB_PROC_POINTER_COMP
, attr_bits
);
2244 if (attr
->private_comp
)
2245 MIO_NAME (ab_attribute
) (AB_PRIVATE_COMP
, attr_bits
);
2246 if (attr
->coarray_comp
)
2247 MIO_NAME (ab_attribute
) (AB_COARRAY_COMP
, attr_bits
);
2248 if (attr
->lock_comp
)
2249 MIO_NAME (ab_attribute
) (AB_LOCK_COMP
, attr_bits
);
2250 if (attr
->event_comp
)
2251 MIO_NAME (ab_attribute
) (AB_EVENT_COMP
, attr_bits
);
2252 if (attr
->zero_comp
)
2253 MIO_NAME (ab_attribute
) (AB_ZERO_COMP
, attr_bits
);
2255 MIO_NAME (ab_attribute
) (AB_IS_CLASS
, attr_bits
);
2256 if (attr
->procedure
)
2257 MIO_NAME (ab_attribute
) (AB_PROCEDURE
, attr_bits
);
2258 if (attr
->proc_pointer
)
2259 MIO_NAME (ab_attribute
) (AB_PROC_POINTER
, attr_bits
);
2261 MIO_NAME (ab_attribute
) (AB_VTYPE
, attr_bits
);
2263 MIO_NAME (ab_attribute
) (AB_VTAB
, attr_bits
);
2264 if (attr
->omp_declare_target
)
2265 MIO_NAME (ab_attribute
) (AB_OMP_DECLARE_TARGET
, attr_bits
);
2266 if (attr
->array_outer_dependency
)
2267 MIO_NAME (ab_attribute
) (AB_ARRAY_OUTER_DEPENDENCY
, attr_bits
);
2268 if (attr
->module_procedure
)
2269 MIO_NAME (ab_attribute
) (AB_MODULE_PROCEDURE
, attr_bits
);
2270 if (attr
->oacc_declare_create
)
2271 MIO_NAME (ab_attribute
) (AB_OACC_DECLARE_CREATE
, attr_bits
);
2272 if (attr
->oacc_declare_copyin
)
2273 MIO_NAME (ab_attribute
) (AB_OACC_DECLARE_COPYIN
, attr_bits
);
2274 if (attr
->oacc_declare_deviceptr
)
2275 MIO_NAME (ab_attribute
) (AB_OACC_DECLARE_DEVICEPTR
, attr_bits
);
2276 if (attr
->oacc_declare_device_resident
)
2277 MIO_NAME (ab_attribute
) (AB_OACC_DECLARE_DEVICE_RESIDENT
, attr_bits
);
2278 if (attr
->oacc_declare_link
)
2279 MIO_NAME (ab_attribute
) (AB_OACC_DECLARE_LINK
, attr_bits
);
2280 if (attr
->omp_declare_target_link
)
2281 MIO_NAME (ab_attribute
) (AB_OMP_DECLARE_TARGET_LINK
, attr_bits
);
2283 MIO_NAME (ab_attribute
) (AB_PDT_KIND
, attr_bits
);
2285 MIO_NAME (ab_attribute
) (AB_PDT_LEN
, attr_bits
);
2287 MIO_NAME (ab_attribute
) (AB_PDT_TYPE
, attr_bits
);
2288 if (attr
->pdt_template
)
2289 MIO_NAME (ab_attribute
) (AB_PDT_TEMPLATE
, attr_bits
);
2290 if (attr
->pdt_array
)
2291 MIO_NAME (ab_attribute
) (AB_PDT_ARRAY
, attr_bits
);
2292 if (attr
->pdt_string
)
2293 MIO_NAME (ab_attribute
) (AB_PDT_STRING
, attr_bits
);
2303 if (t
== ATOM_RPAREN
)
2306 bad_module ("Expected attribute bit name");
2308 switch ((ab_attribute
) find_enum (attr_bits
))
2310 case AB_ALLOCATABLE
:
2311 attr
->allocatable
= 1;
2314 attr
->artificial
= 1;
2316 case AB_ASYNCHRONOUS
:
2317 attr
->asynchronous
= 1;
2320 attr
->dimension
= 1;
2322 case AB_CODIMENSION
:
2323 attr
->codimension
= 1;
2326 attr
->contiguous
= 1;
2332 attr
->intrinsic
= 1;
2340 case AB_CLASS_POINTER
:
2341 attr
->class_pointer
= 1;
2344 attr
->is_protected
= 1;
2350 attr
->volatile_
= 1;
2355 case AB_THREADPRIVATE
:
2356 attr
->threadprivate
= 1;
2367 case AB_IN_NAMELIST
:
2368 attr
->in_namelist
= 1;
2371 attr
->in_common
= 1;
2377 attr
->subroutine
= 1;
2389 attr
->elemental
= 1;
2394 case AB_IMPLICIT_PURE
:
2395 attr
->implicit_pure
= 1;
2397 case AB_UNLIMITED_POLY
:
2398 attr
->unlimited_polymorphic
= 1;
2401 attr
->recursive
= 1;
2403 case AB_ALWAYS_EXPLICIT
:
2404 attr
->always_explicit
= 1;
2406 case AB_CRAY_POINTER
:
2407 attr
->cray_pointer
= 1;
2409 case AB_CRAY_POINTEE
:
2410 attr
->cray_pointee
= 1;
2413 attr
->is_bind_c
= 1;
2415 case AB_IS_C_INTEROP
:
2416 attr
->is_c_interop
= 1;
2422 attr
->alloc_comp
= 1;
2424 case AB_COARRAY_COMP
:
2425 attr
->coarray_comp
= 1;
2428 attr
->lock_comp
= 1;
2431 attr
->event_comp
= 1;
2433 case AB_POINTER_COMP
:
2434 attr
->pointer_comp
= 1;
2436 case AB_PROC_POINTER_COMP
:
2437 attr
->proc_pointer_comp
= 1;
2439 case AB_PRIVATE_COMP
:
2440 attr
->private_comp
= 1;
2443 attr
->zero_comp
= 1;
2449 attr
->procedure
= 1;
2451 case AB_PROC_POINTER
:
2452 attr
->proc_pointer
= 1;
2460 case AB_OMP_DECLARE_TARGET
:
2461 attr
->omp_declare_target
= 1;
2463 case AB_OMP_DECLARE_TARGET_LINK
:
2464 attr
->omp_declare_target_link
= 1;
2466 case AB_ARRAY_OUTER_DEPENDENCY
:
2467 attr
->array_outer_dependency
=1;
2469 case AB_MODULE_PROCEDURE
:
2470 attr
->module_procedure
=1;
2472 case AB_OACC_DECLARE_CREATE
:
2473 attr
->oacc_declare_create
= 1;
2475 case AB_OACC_DECLARE_COPYIN
:
2476 attr
->oacc_declare_copyin
= 1;
2478 case AB_OACC_DECLARE_DEVICEPTR
:
2479 attr
->oacc_declare_deviceptr
= 1;
2481 case AB_OACC_DECLARE_DEVICE_RESIDENT
:
2482 attr
->oacc_declare_device_resident
= 1;
2484 case AB_OACC_DECLARE_LINK
:
2485 attr
->oacc_declare_link
= 1;
2496 case AB_PDT_TEMPLATE
:
2497 attr
->pdt_template
= 1;
2500 attr
->pdt_array
= 1;
2503 attr
->pdt_string
= 1;
2511 static const mstring bt_types
[] = {
2512 minit ("INTEGER", BT_INTEGER
),
2513 minit ("REAL", BT_REAL
),
2514 minit ("COMPLEX", BT_COMPLEX
),
2515 minit ("LOGICAL", BT_LOGICAL
),
2516 minit ("CHARACTER", BT_CHARACTER
),
2517 minit ("UNION", BT_UNION
),
2518 minit ("DERIVED", BT_DERIVED
),
2519 minit ("CLASS", BT_CLASS
),
2520 minit ("PROCEDURE", BT_PROCEDURE
),
2521 minit ("UNKNOWN", BT_UNKNOWN
),
2522 minit ("VOID", BT_VOID
),
2523 minit ("ASSUMED", BT_ASSUMED
),
2529 mio_charlen (gfc_charlen
**clp
)
2535 if (iomode
== IO_OUTPUT
)
2539 mio_expr (&cl
->length
);
2543 if (peek_atom () != ATOM_RPAREN
)
2545 cl
= gfc_new_charlen (gfc_current_ns
, NULL
);
2546 mio_expr (&cl
->length
);
2555 /* See if a name is a generated name. */
2558 check_unique_name (const char *name
)
2560 return *name
== '@';
2565 mio_typespec (gfc_typespec
*ts
)
2569 ts
->type
= MIO_NAME (bt
) (ts
->type
, bt_types
);
2571 if (!gfc_bt_struct (ts
->type
) && ts
->type
!= BT_CLASS
)
2572 mio_integer (&ts
->kind
);
2574 mio_symbol_ref (&ts
->u
.derived
);
2576 mio_symbol_ref (&ts
->interface
);
2578 /* Add info for C interop and is_iso_c. */
2579 mio_integer (&ts
->is_c_interop
);
2580 mio_integer (&ts
->is_iso_c
);
2582 /* If the typespec is for an identifier either from iso_c_binding, or
2583 a constant that was initialized to an identifier from it, use the
2584 f90_type. Otherwise, use the ts->type, since it shouldn't matter. */
2586 ts
->f90_type
= MIO_NAME (bt
) (ts
->f90_type
, bt_types
);
2588 ts
->f90_type
= MIO_NAME (bt
) (ts
->type
, bt_types
);
2590 if (ts
->type
!= BT_CHARACTER
)
2592 /* ts->u.cl is only valid for BT_CHARACTER. */
2597 mio_charlen (&ts
->u
.cl
);
2599 /* So as not to disturb the existing API, use an ATOM_NAME to
2600 transmit deferred characteristic for characters (F2003). */
2601 if (iomode
== IO_OUTPUT
)
2603 if (ts
->type
== BT_CHARACTER
&& ts
->deferred
)
2604 write_atom (ATOM_NAME
, "DEFERRED_CL");
2606 else if (peek_atom () != ATOM_RPAREN
)
2608 if (parse_atom () != ATOM_NAME
)
2609 bad_module ("Expected string");
2617 static const mstring array_spec_types
[] = {
2618 minit ("EXPLICIT", AS_EXPLICIT
),
2619 minit ("ASSUMED_RANK", AS_ASSUMED_RANK
),
2620 minit ("ASSUMED_SHAPE", AS_ASSUMED_SHAPE
),
2621 minit ("DEFERRED", AS_DEFERRED
),
2622 minit ("ASSUMED_SIZE", AS_ASSUMED_SIZE
),
2628 mio_array_spec (gfc_array_spec
**asp
)
2635 if (iomode
== IO_OUTPUT
)
2643 /* mio_integer expects nonnegative values. */
2644 rank
= as
->rank
> 0 ? as
->rank
: 0;
2645 mio_integer (&rank
);
2649 if (peek_atom () == ATOM_RPAREN
)
2655 *asp
= as
= gfc_get_array_spec ();
2656 mio_integer (&as
->rank
);
2659 mio_integer (&as
->corank
);
2660 as
->type
= MIO_NAME (array_type
) (as
->type
, array_spec_types
);
2662 if (iomode
== IO_INPUT
&& as
->type
== AS_ASSUMED_RANK
)
2664 if (iomode
== IO_INPUT
&& as
->corank
)
2665 as
->cotype
= (as
->type
== AS_DEFERRED
) ? AS_DEFERRED
: AS_EXPLICIT
;
2667 if (as
->rank
+ as
->corank
> 0)
2668 for (i
= 0; i
< as
->rank
+ as
->corank
; i
++)
2670 mio_expr (&as
->lower
[i
]);
2671 mio_expr (&as
->upper
[i
]);
2679 /* Given a pointer to an array reference structure (which lives in a
2680 gfc_ref structure), find the corresponding array specification
2681 structure. Storing the pointer in the ref structure doesn't quite
2682 work when loading from a module. Generating code for an array
2683 reference also needs more information than just the array spec. */
2685 static const mstring array_ref_types
[] = {
2686 minit ("FULL", AR_FULL
),
2687 minit ("ELEMENT", AR_ELEMENT
),
2688 minit ("SECTION", AR_SECTION
),
2694 mio_array_ref (gfc_array_ref
*ar
)
2699 ar
->type
= MIO_NAME (ar_type
) (ar
->type
, array_ref_types
);
2700 mio_integer (&ar
->dimen
);
2708 for (i
= 0; i
< ar
->dimen
; i
++)
2709 mio_expr (&ar
->start
[i
]);
2714 for (i
= 0; i
< ar
->dimen
; i
++)
2716 mio_expr (&ar
->start
[i
]);
2717 mio_expr (&ar
->end
[i
]);
2718 mio_expr (&ar
->stride
[i
]);
2724 gfc_internal_error ("mio_array_ref(): Unknown array ref");
2727 /* Unfortunately, ar->dimen_type is an anonymous enumerated type so
2728 we can't call mio_integer directly. Instead loop over each element
2729 and cast it to/from an integer. */
2730 if (iomode
== IO_OUTPUT
)
2732 for (i
= 0; i
< ar
->dimen
; i
++)
2734 HOST_WIDE_INT tmp
= (HOST_WIDE_INT
)ar
->dimen_type
[i
];
2735 write_atom (ATOM_INTEGER
, &tmp
);
2740 for (i
= 0; i
< ar
->dimen
; i
++)
2742 require_atom (ATOM_INTEGER
);
2743 ar
->dimen_type
[i
] = (enum gfc_array_ref_dimen_type
) atom_int
;
2747 if (iomode
== IO_INPUT
)
2749 ar
->where
= gfc_current_locus
;
2751 for (i
= 0; i
< ar
->dimen
; i
++)
2752 ar
->c_where
[i
] = gfc_current_locus
;
2759 /* Saves or restores a pointer. The pointer is converted back and
2760 forth from an integer. We return the pointer_info pointer so that
2761 the caller can take additional action based on the pointer type. */
2763 static pointer_info
*
2764 mio_pointer_ref (void *gp
)
2768 if (iomode
== IO_OUTPUT
)
2770 p
= get_pointer (*((char **) gp
));
2771 HOST_WIDE_INT hwi
= p
->integer
;
2772 write_atom (ATOM_INTEGER
, &hwi
);
2776 require_atom (ATOM_INTEGER
);
2777 p
= add_fixup (atom_int
, gp
);
2784 /* Save and load references to components that occur within
2785 expressions. We have to describe these references by a number and
2786 by name. The number is necessary for forward references during
2787 reading, and the name is necessary if the symbol already exists in
2788 the namespace and is not loaded again. */
2791 mio_component_ref (gfc_component
**cp
)
2795 p
= mio_pointer_ref (cp
);
2796 if (p
->type
== P_UNKNOWN
)
2797 p
->type
= P_COMPONENT
;
2801 static void mio_namespace_ref (gfc_namespace
**nsp
);
2802 static void mio_formal_arglist (gfc_formal_arglist
**formal
);
2803 static void mio_typebound_proc (gfc_typebound_proc
** proc
);
2804 static void mio_actual_arglist (gfc_actual_arglist
**ap
, bool pdt
);
2807 mio_component (gfc_component
*c
, int vtype
)
2813 if (iomode
== IO_OUTPUT
)
2815 p
= get_pointer (c
);
2816 mio_hwi (&p
->integer
);
2822 p
= get_integer (n
);
2823 associate_integer_pointer (p
, c
);
2826 if (p
->type
== P_UNKNOWN
)
2827 p
->type
= P_COMPONENT
;
2829 mio_pool_string (&c
->name
);
2830 mio_typespec (&c
->ts
);
2831 mio_array_spec (&c
->as
);
2833 /* PDT templates store the expression for the kind of a component here. */
2834 mio_expr (&c
->kind_expr
);
2836 /* PDT types store the component specification list here. */
2837 mio_actual_arglist (&c
->param_list
, true);
2839 mio_symbol_attribute (&c
->attr
);
2840 if (c
->ts
.type
== BT_CLASS
)
2841 c
->attr
.class_ok
= 1;
2842 c
->attr
.access
= MIO_NAME (gfc_access
) (c
->attr
.access
, access_types
);
2844 if (!vtype
|| strcmp (c
->name
, "_final") == 0
2845 || strcmp (c
->name
, "_hash") == 0)
2846 mio_expr (&c
->initializer
);
2848 if (c
->attr
.proc_pointer
)
2849 mio_typebound_proc (&c
->tb
);
2856 mio_component_list (gfc_component
**cp
, int vtype
)
2858 gfc_component
*c
, *tail
;
2862 if (iomode
== IO_OUTPUT
)
2864 for (c
= *cp
; c
; c
= c
->next
)
2865 mio_component (c
, vtype
);
2874 if (peek_atom () == ATOM_RPAREN
)
2877 c
= gfc_get_component ();
2878 mio_component (c
, vtype
);
2894 mio_actual_arg (gfc_actual_arglist
*a
, bool pdt
)
2897 mio_pool_string (&a
->name
);
2898 mio_expr (&a
->expr
);
2900 mio_integer ((int *)&a
->spec_type
);
2906 mio_actual_arglist (gfc_actual_arglist
**ap
, bool pdt
)
2908 gfc_actual_arglist
*a
, *tail
;
2912 if (iomode
== IO_OUTPUT
)
2914 for (a
= *ap
; a
; a
= a
->next
)
2915 mio_actual_arg (a
, pdt
);
2924 if (peek_atom () != ATOM_LPAREN
)
2927 a
= gfc_get_actual_arglist ();
2935 mio_actual_arg (a
, pdt
);
2943 /* Read and write formal argument lists. */
2946 mio_formal_arglist (gfc_formal_arglist
**formal
)
2948 gfc_formal_arglist
*f
, *tail
;
2952 if (iomode
== IO_OUTPUT
)
2954 for (f
= *formal
; f
; f
= f
->next
)
2955 mio_symbol_ref (&f
->sym
);
2959 *formal
= tail
= NULL
;
2961 while (peek_atom () != ATOM_RPAREN
)
2963 f
= gfc_get_formal_arglist ();
2964 mio_symbol_ref (&f
->sym
);
2966 if (*formal
== NULL
)
2979 /* Save or restore a reference to a symbol node. */
2982 mio_symbol_ref (gfc_symbol
**symp
)
2986 p
= mio_pointer_ref (symp
);
2987 if (p
->type
== P_UNKNOWN
)
2990 if (iomode
== IO_OUTPUT
)
2992 if (p
->u
.wsym
.state
== UNREFERENCED
)
2993 p
->u
.wsym
.state
= NEEDS_WRITE
;
2997 if (p
->u
.rsym
.state
== UNUSED
)
2998 p
->u
.rsym
.state
= NEEDED
;
3004 /* Save or restore a reference to a symtree node. */
3007 mio_symtree_ref (gfc_symtree
**stp
)
3012 if (iomode
== IO_OUTPUT
)
3013 mio_symbol_ref (&(*stp
)->n
.sym
);
3016 require_atom (ATOM_INTEGER
);
3017 p
= get_integer (atom_int
);
3019 /* An unused equivalence member; make a symbol and a symtree
3021 if (in_load_equiv
&& p
->u
.rsym
.symtree
== NULL
)
3023 /* Since this is not used, it must have a unique name. */
3024 p
->u
.rsym
.symtree
= gfc_get_unique_symtree (gfc_current_ns
);
3026 /* Make the symbol. */
3027 if (p
->u
.rsym
.sym
== NULL
)
3029 p
->u
.rsym
.sym
= gfc_new_symbol (p
->u
.rsym
.true_name
,
3031 p
->u
.rsym
.sym
->module
= gfc_get_string ("%s", p
->u
.rsym
.module
);
3034 p
->u
.rsym
.symtree
->n
.sym
= p
->u
.rsym
.sym
;
3035 p
->u
.rsym
.symtree
->n
.sym
->refs
++;
3036 p
->u
.rsym
.referenced
= 1;
3038 /* If the symbol is PRIVATE and in COMMON, load_commons will
3039 generate a fixup symbol, which must be associated. */
3041 resolve_fixups (p
->fixup
, p
->u
.rsym
.sym
);
3045 if (p
->type
== P_UNKNOWN
)
3048 if (p
->u
.rsym
.state
== UNUSED
)
3049 p
->u
.rsym
.state
= NEEDED
;
3051 if (p
->u
.rsym
.symtree
!= NULL
)
3053 *stp
= p
->u
.rsym
.symtree
;
3057 f
= XCNEW (fixup_t
);
3059 f
->next
= p
->u
.rsym
.stfixup
;
3060 p
->u
.rsym
.stfixup
= f
;
3062 f
->pointer
= (void **) stp
;
3069 mio_iterator (gfc_iterator
**ip
)
3075 if (iomode
== IO_OUTPUT
)
3082 if (peek_atom () == ATOM_RPAREN
)
3088 *ip
= gfc_get_iterator ();
3093 mio_expr (&iter
->var
);
3094 mio_expr (&iter
->start
);
3095 mio_expr (&iter
->end
);
3096 mio_expr (&iter
->step
);
3104 mio_constructor (gfc_constructor_base
*cp
)
3110 if (iomode
== IO_OUTPUT
)
3112 for (c
= gfc_constructor_first (*cp
); c
; c
= gfc_constructor_next (c
))
3115 mio_expr (&c
->expr
);
3116 mio_iterator (&c
->iterator
);
3122 while (peek_atom () != ATOM_RPAREN
)
3124 c
= gfc_constructor_append_expr (cp
, NULL
, NULL
);
3127 mio_expr (&c
->expr
);
3128 mio_iterator (&c
->iterator
);
3137 static const mstring ref_types
[] = {
3138 minit ("ARRAY", REF_ARRAY
),
3139 minit ("COMPONENT", REF_COMPONENT
),
3140 minit ("SUBSTRING", REF_SUBSTRING
),
3146 mio_ref (gfc_ref
**rp
)
3153 r
->type
= MIO_NAME (ref_type
) (r
->type
, ref_types
);
3158 mio_array_ref (&r
->u
.ar
);
3162 mio_symbol_ref (&r
->u
.c
.sym
);
3163 mio_component_ref (&r
->u
.c
.component
);
3167 mio_expr (&r
->u
.ss
.start
);
3168 mio_expr (&r
->u
.ss
.end
);
3169 mio_charlen (&r
->u
.ss
.length
);
3178 mio_ref_list (gfc_ref
**rp
)
3180 gfc_ref
*ref
, *head
, *tail
;
3184 if (iomode
== IO_OUTPUT
)
3186 for (ref
= *rp
; ref
; ref
= ref
->next
)
3193 while (peek_atom () != ATOM_RPAREN
)
3196 head
= tail
= gfc_get_ref ();
3199 tail
->next
= gfc_get_ref ();
3213 /* Read and write an integer value. */
3216 mio_gmp_integer (mpz_t
*integer
)
3220 if (iomode
== IO_INPUT
)
3222 if (parse_atom () != ATOM_STRING
)
3223 bad_module ("Expected integer string");
3225 mpz_init (*integer
);
3226 if (mpz_set_str (*integer
, atom_string
, 10))
3227 bad_module ("Error converting integer");
3233 p
= mpz_get_str (NULL
, 10, *integer
);
3234 write_atom (ATOM_STRING
, p
);
3241 mio_gmp_real (mpfr_t
*real
)
3246 if (iomode
== IO_INPUT
)
3248 if (parse_atom () != ATOM_STRING
)
3249 bad_module ("Expected real string");
3252 mpfr_set_str (*real
, atom_string
, 16, GFC_RND_MODE
);
3257 p
= mpfr_get_str (NULL
, &exponent
, 16, 0, *real
, GFC_RND_MODE
);
3259 if (mpfr_nan_p (*real
) || mpfr_inf_p (*real
))
3261 write_atom (ATOM_STRING
, p
);
3266 atom_string
= XCNEWVEC (char, strlen (p
) + 20);
3268 sprintf (atom_string
, "0.%s@%ld", p
, exponent
);
3270 /* Fix negative numbers. */
3271 if (atom_string
[2] == '-')
3273 atom_string
[0] = '-';
3274 atom_string
[1] = '0';
3275 atom_string
[2] = '.';
3278 write_atom (ATOM_STRING
, atom_string
);
3286 /* Save and restore the shape of an array constructor. */
3289 mio_shape (mpz_t
**pshape
, int rank
)
3295 /* A NULL shape is represented by (). */
3298 if (iomode
== IO_OUTPUT
)
3310 if (t
== ATOM_RPAREN
)
3317 shape
= gfc_get_shape (rank
);
3321 for (n
= 0; n
< rank
; n
++)
3322 mio_gmp_integer (&shape
[n
]);
3328 static const mstring expr_types
[] = {
3329 minit ("OP", EXPR_OP
),
3330 minit ("FUNCTION", EXPR_FUNCTION
),
3331 minit ("CONSTANT", EXPR_CONSTANT
),
3332 minit ("VARIABLE", EXPR_VARIABLE
),
3333 minit ("SUBSTRING", EXPR_SUBSTRING
),
3334 minit ("STRUCTURE", EXPR_STRUCTURE
),
3335 minit ("ARRAY", EXPR_ARRAY
),
3336 minit ("NULL", EXPR_NULL
),
3337 minit ("COMPCALL", EXPR_COMPCALL
),
3341 /* INTRINSIC_ASSIGN is missing because it is used as an index for
3342 generic operators, not in expressions. INTRINSIC_USER is also
3343 replaced by the correct function name by the time we see it. */
3345 static const mstring intrinsics
[] =
3347 minit ("UPLUS", INTRINSIC_UPLUS
),
3348 minit ("UMINUS", INTRINSIC_UMINUS
),
3349 minit ("PLUS", INTRINSIC_PLUS
),
3350 minit ("MINUS", INTRINSIC_MINUS
),
3351 minit ("TIMES", INTRINSIC_TIMES
),
3352 minit ("DIVIDE", INTRINSIC_DIVIDE
),
3353 minit ("POWER", INTRINSIC_POWER
),
3354 minit ("CONCAT", INTRINSIC_CONCAT
),
3355 minit ("AND", INTRINSIC_AND
),
3356 minit ("OR", INTRINSIC_OR
),
3357 minit ("EQV", INTRINSIC_EQV
),
3358 minit ("NEQV", INTRINSIC_NEQV
),
3359 minit ("EQ_SIGN", INTRINSIC_EQ
),
3360 minit ("EQ", INTRINSIC_EQ_OS
),
3361 minit ("NE_SIGN", INTRINSIC_NE
),
3362 minit ("NE", INTRINSIC_NE_OS
),
3363 minit ("GT_SIGN", INTRINSIC_GT
),
3364 minit ("GT", INTRINSIC_GT_OS
),
3365 minit ("GE_SIGN", INTRINSIC_GE
),
3366 minit ("GE", INTRINSIC_GE_OS
),
3367 minit ("LT_SIGN", INTRINSIC_LT
),
3368 minit ("LT", INTRINSIC_LT_OS
),
3369 minit ("LE_SIGN", INTRINSIC_LE
),
3370 minit ("LE", INTRINSIC_LE_OS
),
3371 minit ("NOT", INTRINSIC_NOT
),
3372 minit ("PARENTHESES", INTRINSIC_PARENTHESES
),
3373 minit ("USER", INTRINSIC_USER
),
3378 /* Remedy a couple of situations where the gfc_expr's can be defective. */
3381 fix_mio_expr (gfc_expr
*e
)
3383 gfc_symtree
*ns_st
= NULL
;
3386 if (iomode
!= IO_OUTPUT
)
3391 /* If this is a symtree for a symbol that came from a contained module
3392 namespace, it has a unique name and we should look in the current
3393 namespace to see if the required, non-contained symbol is available
3394 yet. If so, the latter should be written. */
3395 if (e
->symtree
->n
.sym
&& check_unique_name (e
->symtree
->name
))
3397 const char *name
= e
->symtree
->n
.sym
->name
;
3398 if (gfc_fl_struct (e
->symtree
->n
.sym
->attr
.flavor
))
3399 name
= gfc_dt_upper_string (name
);
3400 ns_st
= gfc_find_symtree (gfc_current_ns
->sym_root
, name
);
3403 /* On the other hand, if the existing symbol is the module name or the
3404 new symbol is a dummy argument, do not do the promotion. */
3405 if (ns_st
&& ns_st
->n
.sym
3406 && ns_st
->n
.sym
->attr
.flavor
!= FL_MODULE
3407 && !e
->symtree
->n
.sym
->attr
.dummy
)
3410 else if (e
->expr_type
== EXPR_FUNCTION
3411 && (e
->value
.function
.name
|| e
->value
.function
.isym
))
3415 /* In some circumstances, a function used in an initialization
3416 expression, in one use associated module, can fail to be
3417 coupled to its symtree when used in a specification
3418 expression in another module. */
3419 fname
= e
->value
.function
.esym
? e
->value
.function
.esym
->name
3420 : e
->value
.function
.isym
->name
;
3421 e
->symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, fname
);
3426 /* This is probably a reference to a private procedure from another
3427 module. To prevent a segfault, make a generic with no specific
3428 instances. If this module is used, without the required
3429 specific coming from somewhere, the appropriate error message
3431 gfc_get_symbol (fname
, gfc_current_ns
, &sym
);
3432 sym
->attr
.flavor
= FL_PROCEDURE
;
3433 sym
->attr
.generic
= 1;
3434 e
->symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, fname
);
3435 gfc_commit_symbol (sym
);
3440 /* Read and write expressions. The form "()" is allowed to indicate a
3444 mio_expr (gfc_expr
**ep
)
3453 if (iomode
== IO_OUTPUT
)
3462 MIO_NAME (expr_t
) (e
->expr_type
, expr_types
);
3467 if (t
== ATOM_RPAREN
)
3474 bad_module ("Expected expression type");
3476 e
= *ep
= gfc_get_expr ();
3477 e
->where
= gfc_current_locus
;
3478 e
->expr_type
= (expr_t
) find_enum (expr_types
);
3481 mio_typespec (&e
->ts
);
3482 mio_integer (&e
->rank
);
3486 switch (e
->expr_type
)
3490 = MIO_NAME (gfc_intrinsic_op
) (e
->value
.op
.op
, intrinsics
);
3492 switch (e
->value
.op
.op
)
3494 case INTRINSIC_UPLUS
:
3495 case INTRINSIC_UMINUS
:
3497 case INTRINSIC_PARENTHESES
:
3498 mio_expr (&e
->value
.op
.op1
);
3501 case INTRINSIC_PLUS
:
3502 case INTRINSIC_MINUS
:
3503 case INTRINSIC_TIMES
:
3504 case INTRINSIC_DIVIDE
:
3505 case INTRINSIC_POWER
:
3506 case INTRINSIC_CONCAT
:
3510 case INTRINSIC_NEQV
:
3512 case INTRINSIC_EQ_OS
:
3514 case INTRINSIC_NE_OS
:
3516 case INTRINSIC_GT_OS
:
3518 case INTRINSIC_GE_OS
:
3520 case INTRINSIC_LT_OS
:
3522 case INTRINSIC_LE_OS
:
3523 mio_expr (&e
->value
.op
.op1
);
3524 mio_expr (&e
->value
.op
.op2
);
3527 case INTRINSIC_USER
:
3528 /* INTRINSIC_USER should not appear in resolved expressions,
3529 though for UDRs we need to stream unresolved ones. */
3530 if (iomode
== IO_OUTPUT
)
3531 write_atom (ATOM_STRING
, e
->value
.op
.uop
->name
);
3534 char *name
= read_string ();
3535 const char *uop_name
= find_use_name (name
, true);
3536 if (uop_name
== NULL
)
3538 size_t len
= strlen (name
);
3539 char *name2
= XCNEWVEC (char, len
+ 2);
3540 memcpy (name2
, name
, len
);
3542 name2
[len
+ 1] = '\0';
3544 uop_name
= name
= name2
;
3546 e
->value
.op
.uop
= gfc_get_uop (uop_name
);
3549 mio_expr (&e
->value
.op
.op1
);
3550 mio_expr (&e
->value
.op
.op2
);
3554 bad_module ("Bad operator");
3560 mio_symtree_ref (&e
->symtree
);
3561 mio_actual_arglist (&e
->value
.function
.actual
, false);
3563 if (iomode
== IO_OUTPUT
)
3565 e
->value
.function
.name
3566 = mio_allocated_string (e
->value
.function
.name
);
3567 if (e
->value
.function
.esym
)
3571 else if (e
->value
.function
.isym
== NULL
)
3575 mio_integer (&flag
);
3579 mio_symbol_ref (&e
->value
.function
.esym
);
3582 mio_ref_list (&e
->ref
);
3587 write_atom (ATOM_STRING
, e
->value
.function
.isym
->name
);
3592 require_atom (ATOM_STRING
);
3593 if (atom_string
[0] == '\0')
3594 e
->value
.function
.name
= NULL
;
3596 e
->value
.function
.name
= gfc_get_string ("%s", atom_string
);
3599 mio_integer (&flag
);
3603 mio_symbol_ref (&e
->value
.function
.esym
);
3606 mio_ref_list (&e
->ref
);
3611 require_atom (ATOM_STRING
);
3612 e
->value
.function
.isym
= gfc_find_function (atom_string
);
3620 mio_symtree_ref (&e
->symtree
);
3621 mio_ref_list (&e
->ref
);
3624 case EXPR_SUBSTRING
:
3625 e
->value
.character
.string
3626 = CONST_CAST (gfc_char_t
*,
3627 mio_allocated_wide_string (e
->value
.character
.string
,
3628 e
->value
.character
.length
));
3629 mio_ref_list (&e
->ref
);
3632 case EXPR_STRUCTURE
:
3634 mio_constructor (&e
->value
.constructor
);
3635 mio_shape (&e
->shape
, e
->rank
);
3642 mio_gmp_integer (&e
->value
.integer
);
3646 gfc_set_model_kind (e
->ts
.kind
);
3647 mio_gmp_real (&e
->value
.real
);
3651 gfc_set_model_kind (e
->ts
.kind
);
3652 mio_gmp_real (&mpc_realref (e
->value
.complex));
3653 mio_gmp_real (&mpc_imagref (e
->value
.complex));
3657 mio_integer (&e
->value
.logical
);
3661 hwi
= e
->value
.character
.length
;
3663 e
->value
.character
.length
= hwi
;
3664 e
->value
.character
.string
3665 = CONST_CAST (gfc_char_t
*,
3666 mio_allocated_wide_string (e
->value
.character
.string
,
3667 e
->value
.character
.length
));
3671 bad_module ("Bad type in constant expression");
3685 /* PDT types store the expression specification list here. */
3686 mio_actual_arglist (&e
->param_list
, true);
3692 /* Read and write namelists. */
3695 mio_namelist (gfc_symbol
*sym
)
3697 gfc_namelist
*n
, *m
;
3698 const char *check_name
;
3702 if (iomode
== IO_OUTPUT
)
3704 for (n
= sym
->namelist
; n
; n
= n
->next
)
3705 mio_symbol_ref (&n
->sym
);
3709 /* This departure from the standard is flagged as an error.
3710 It does, in fact, work correctly. TODO: Allow it
3712 if (sym
->attr
.flavor
== FL_NAMELIST
)
3714 check_name
= find_use_name (sym
->name
, false);
3715 if (check_name
&& strcmp (check_name
, sym
->name
) != 0)
3716 gfc_error ("Namelist %s cannot be renamed by USE "
3717 "association to %s", sym
->name
, check_name
);
3721 while (peek_atom () != ATOM_RPAREN
)
3723 n
= gfc_get_namelist ();
3724 mio_symbol_ref (&n
->sym
);
3726 if (sym
->namelist
== NULL
)
3733 sym
->namelist_tail
= m
;
3740 /* Save/restore lists of gfc_interface structures. When loading an
3741 interface, we are really appending to the existing list of
3742 interfaces. Checking for duplicate and ambiguous interfaces has to
3743 be done later when all symbols have been loaded. */
3746 mio_interface_rest (gfc_interface
**ip
)
3748 gfc_interface
*tail
, *p
;
3749 pointer_info
*pi
= NULL
;
3751 if (iomode
== IO_OUTPUT
)
3754 for (p
= *ip
; p
; p
= p
->next
)
3755 mio_symbol_ref (&p
->sym
);
3770 if (peek_atom () == ATOM_RPAREN
)
3773 p
= gfc_get_interface ();
3774 p
->where
= gfc_current_locus
;
3775 pi
= mio_symbol_ref (&p
->sym
);
3791 /* Save/restore a nameless operator interface. */
3794 mio_interface (gfc_interface
**ip
)
3797 mio_interface_rest (ip
);
3801 /* Save/restore a named operator interface. */
3804 mio_symbol_interface (const char **name
, const char **module
,
3808 mio_pool_string (name
);
3809 mio_pool_string (module
);
3810 mio_interface_rest (ip
);
3815 mio_namespace_ref (gfc_namespace
**nsp
)
3820 p
= mio_pointer_ref (nsp
);
3822 if (p
->type
== P_UNKNOWN
)
3823 p
->type
= P_NAMESPACE
;
3825 if (iomode
== IO_INPUT
&& p
->integer
!= 0)
3827 ns
= (gfc_namespace
*) p
->u
.pointer
;
3830 ns
= gfc_get_namespace (NULL
, 0);
3831 associate_integer_pointer (p
, ns
);
3839 /* Save/restore the f2k_derived namespace of a derived-type symbol. */
3841 static gfc_namespace
* current_f2k_derived
;
3844 mio_typebound_proc (gfc_typebound_proc
** proc
)
3847 int overriding_flag
;
3849 if (iomode
== IO_INPUT
)
3851 *proc
= gfc_get_typebound_proc (NULL
);
3852 (*proc
)->where
= gfc_current_locus
;
3858 (*proc
)->access
= MIO_NAME (gfc_access
) ((*proc
)->access
, access_types
);
3860 /* IO the NON_OVERRIDABLE/DEFERRED combination. */
3861 gcc_assert (!((*proc
)->deferred
&& (*proc
)->non_overridable
));
3862 overriding_flag
= ((*proc
)->deferred
<< 1) | (*proc
)->non_overridable
;
3863 overriding_flag
= mio_name (overriding_flag
, binding_overriding
);
3864 (*proc
)->deferred
= ((overriding_flag
& 2) != 0);
3865 (*proc
)->non_overridable
= ((overriding_flag
& 1) != 0);
3866 gcc_assert (!((*proc
)->deferred
&& (*proc
)->non_overridable
));
3868 (*proc
)->nopass
= mio_name ((*proc
)->nopass
, binding_passing
);
3869 (*proc
)->is_generic
= mio_name ((*proc
)->is_generic
, binding_generic
);
3870 (*proc
)->ppc
= mio_name((*proc
)->ppc
, binding_ppc
);
3872 mio_pool_string (&((*proc
)->pass_arg
));
3874 flag
= (int) (*proc
)->pass_arg_num
;
3875 mio_integer (&flag
);
3876 (*proc
)->pass_arg_num
= (unsigned) flag
;
3878 if ((*proc
)->is_generic
)
3885 if (iomode
== IO_OUTPUT
)
3886 for (g
= (*proc
)->u
.generic
; g
; g
= g
->next
)
3888 iop
= (int) g
->is_operator
;
3890 mio_allocated_string (g
->specific_st
->name
);
3894 (*proc
)->u
.generic
= NULL
;
3895 while (peek_atom () != ATOM_RPAREN
)
3897 gfc_symtree
** sym_root
;
3899 g
= gfc_get_tbp_generic ();
3903 g
->is_operator
= (bool) iop
;
3905 require_atom (ATOM_STRING
);
3906 sym_root
= ¤t_f2k_derived
->tb_sym_root
;
3907 g
->specific_st
= gfc_get_tbp_symtree (sym_root
, atom_string
);
3910 g
->next
= (*proc
)->u
.generic
;
3911 (*proc
)->u
.generic
= g
;
3917 else if (!(*proc
)->ppc
)
3918 mio_symtree_ref (&(*proc
)->u
.specific
);
3923 /* Walker-callback function for this purpose. */
3925 mio_typebound_symtree (gfc_symtree
* st
)
3927 if (iomode
== IO_OUTPUT
&& !st
->n
.tb
)
3930 if (iomode
== IO_OUTPUT
)
3933 mio_allocated_string (st
->name
);
3935 /* For IO_INPUT, the above is done in mio_f2k_derived. */
3937 mio_typebound_proc (&st
->n
.tb
);
3941 /* IO a full symtree (in all depth). */
3943 mio_full_typebound_tree (gfc_symtree
** root
)
3947 if (iomode
== IO_OUTPUT
)
3948 gfc_traverse_symtree (*root
, &mio_typebound_symtree
);
3951 while (peek_atom () == ATOM_LPAREN
)
3957 require_atom (ATOM_STRING
);
3958 st
= gfc_get_tbp_symtree (root
, atom_string
);
3961 mio_typebound_symtree (st
);
3969 mio_finalizer (gfc_finalizer
**f
)
3971 if (iomode
== IO_OUTPUT
)
3974 gcc_assert ((*f
)->proc_tree
); /* Should already be resolved. */
3975 mio_symtree_ref (&(*f
)->proc_tree
);
3979 *f
= gfc_get_finalizer ();
3980 (*f
)->where
= gfc_current_locus
; /* Value should not matter. */
3983 mio_symtree_ref (&(*f
)->proc_tree
);
3984 (*f
)->proc_sym
= NULL
;
3989 mio_f2k_derived (gfc_namespace
*f2k
)
3991 current_f2k_derived
= f2k
;
3993 /* Handle the list of finalizer procedures. */
3995 if (iomode
== IO_OUTPUT
)
3998 for (f
= f2k
->finalizers
; f
; f
= f
->next
)
4003 f2k
->finalizers
= NULL
;
4004 while (peek_atom () != ATOM_RPAREN
)
4006 gfc_finalizer
*cur
= NULL
;
4007 mio_finalizer (&cur
);
4008 cur
->next
= f2k
->finalizers
;
4009 f2k
->finalizers
= cur
;
4014 /* Handle type-bound procedures. */
4015 mio_full_typebound_tree (&f2k
->tb_sym_root
);
4017 /* Type-bound user operators. */
4018 mio_full_typebound_tree (&f2k
->tb_uop_root
);
4020 /* Type-bound intrinsic operators. */
4022 if (iomode
== IO_OUTPUT
)
4025 for (op
= GFC_INTRINSIC_BEGIN
; op
!= GFC_INTRINSIC_END
; ++op
)
4027 gfc_intrinsic_op realop
;
4029 if (op
== INTRINSIC_USER
|| !f2k
->tb_op
[op
])
4033 realop
= (gfc_intrinsic_op
) op
;
4034 mio_intrinsic_op (&realop
);
4035 mio_typebound_proc (&f2k
->tb_op
[op
]);
4040 while (peek_atom () != ATOM_RPAREN
)
4042 gfc_intrinsic_op op
= GFC_INTRINSIC_BEGIN
; /* Silence GCC. */
4045 mio_intrinsic_op (&op
);
4046 mio_typebound_proc (&f2k
->tb_op
[op
]);
4053 mio_full_f2k_derived (gfc_symbol
*sym
)
4057 if (iomode
== IO_OUTPUT
)
4059 if (sym
->f2k_derived
)
4060 mio_f2k_derived (sym
->f2k_derived
);
4064 if (peek_atom () != ATOM_RPAREN
)
4068 sym
->f2k_derived
= gfc_get_namespace (NULL
, 0);
4070 /* PDT templates make use of the mechanisms for formal args
4071 and so the parameter symbols are stored in the formal
4072 namespace. Transfer the sym_root to f2k_derived and then
4073 free the formal namespace since it is uneeded. */
4074 if (sym
->attr
.pdt_template
&& sym
->formal
&& sym
->formal
->sym
)
4076 ns
= sym
->formal
->sym
->ns
;
4077 sym
->f2k_derived
->sym_root
= ns
->sym_root
;
4078 ns
->sym_root
= NULL
;
4080 gfc_free_namespace (ns
);
4084 mio_f2k_derived (sym
->f2k_derived
);
4087 gcc_assert (!sym
->f2k_derived
);
4093 static const mstring omp_declare_simd_clauses
[] =
4095 minit ("INBRANCH", 0),
4096 minit ("NOTINBRANCH", 1),
4097 minit ("SIMDLEN", 2),
4098 minit ("UNIFORM", 3),
4099 minit ("LINEAR", 4),
4100 minit ("ALIGNED", 5),
4101 minit ("LINEAR_REF", 33),
4102 minit ("LINEAR_VAL", 34),
4103 minit ("LINEAR_UVAL", 35),
4107 /* Handle !$omp declare simd. */
4110 mio_omp_declare_simd (gfc_namespace
*ns
, gfc_omp_declare_simd
**odsp
)
4112 if (iomode
== IO_OUTPUT
)
4117 else if (peek_atom () != ATOM_LPAREN
)
4120 gfc_omp_declare_simd
*ods
= *odsp
;
4123 if (iomode
== IO_OUTPUT
)
4125 write_atom (ATOM_NAME
, "OMP_DECLARE_SIMD");
4128 gfc_omp_namelist
*n
;
4130 if (ods
->clauses
->inbranch
)
4131 mio_name (0, omp_declare_simd_clauses
);
4132 if (ods
->clauses
->notinbranch
)
4133 mio_name (1, omp_declare_simd_clauses
);
4134 if (ods
->clauses
->simdlen_expr
)
4136 mio_name (2, omp_declare_simd_clauses
);
4137 mio_expr (&ods
->clauses
->simdlen_expr
);
4139 for (n
= ods
->clauses
->lists
[OMP_LIST_UNIFORM
]; n
; n
= n
->next
)
4141 mio_name (3, omp_declare_simd_clauses
);
4142 mio_symbol_ref (&n
->sym
);
4144 for (n
= ods
->clauses
->lists
[OMP_LIST_LINEAR
]; n
; n
= n
->next
)
4146 if (n
->u
.linear_op
== OMP_LINEAR_DEFAULT
)
4147 mio_name (4, omp_declare_simd_clauses
);
4149 mio_name (32 + n
->u
.linear_op
, omp_declare_simd_clauses
);
4150 mio_symbol_ref (&n
->sym
);
4151 mio_expr (&n
->expr
);
4153 for (n
= ods
->clauses
->lists
[OMP_LIST_ALIGNED
]; n
; n
= n
->next
)
4155 mio_name (5, omp_declare_simd_clauses
);
4156 mio_symbol_ref (&n
->sym
);
4157 mio_expr (&n
->expr
);
4163 gfc_omp_namelist
**ptrs
[3] = { NULL
, NULL
, NULL
};
4165 require_atom (ATOM_NAME
);
4166 *odsp
= ods
= gfc_get_omp_declare_simd ();
4167 ods
->where
= gfc_current_locus
;
4168 ods
->proc_name
= ns
->proc_name
;
4169 if (peek_atom () == ATOM_NAME
)
4171 ods
->clauses
= gfc_get_omp_clauses ();
4172 ptrs
[0] = &ods
->clauses
->lists
[OMP_LIST_UNIFORM
];
4173 ptrs
[1] = &ods
->clauses
->lists
[OMP_LIST_LINEAR
];
4174 ptrs
[2] = &ods
->clauses
->lists
[OMP_LIST_ALIGNED
];
4176 while (peek_atom () == ATOM_NAME
)
4178 gfc_omp_namelist
*n
;
4179 int t
= mio_name (0, omp_declare_simd_clauses
);
4183 case 0: ods
->clauses
->inbranch
= true; break;
4184 case 1: ods
->clauses
->notinbranch
= true; break;
4185 case 2: mio_expr (&ods
->clauses
->simdlen_expr
); break;
4189 *ptrs
[t
- 3] = n
= gfc_get_omp_namelist ();
4191 n
->where
= gfc_current_locus
;
4192 ptrs
[t
- 3] = &n
->next
;
4193 mio_symbol_ref (&n
->sym
);
4195 mio_expr (&n
->expr
);
4200 *ptrs
[1] = n
= gfc_get_omp_namelist ();
4201 n
->u
.linear_op
= (enum gfc_omp_linear_op
) (t
- 32);
4203 goto finish_namelist
;
4208 mio_omp_declare_simd (ns
, &ods
->next
);
4214 static const mstring omp_declare_reduction_stmt
[] =
4216 minit ("ASSIGN", 0),
4223 mio_omp_udr_expr (gfc_omp_udr
*udr
, gfc_symbol
**sym1
, gfc_symbol
**sym2
,
4224 gfc_namespace
*ns
, bool is_initializer
)
4226 if (iomode
== IO_OUTPUT
)
4228 if ((*sym1
)->module
== NULL
)
4230 (*sym1
)->module
= module_name
;
4231 (*sym2
)->module
= module_name
;
4233 mio_symbol_ref (sym1
);
4234 mio_symbol_ref (sym2
);
4235 if (ns
->code
->op
== EXEC_ASSIGN
)
4237 mio_name (0, omp_declare_reduction_stmt
);
4238 mio_expr (&ns
->code
->expr1
);
4239 mio_expr (&ns
->code
->expr2
);
4244 mio_name (1, omp_declare_reduction_stmt
);
4245 mio_symtree_ref (&ns
->code
->symtree
);
4246 mio_actual_arglist (&ns
->code
->ext
.actual
, false);
4248 flag
= ns
->code
->resolved_isym
!= NULL
;
4249 mio_integer (&flag
);
4251 write_atom (ATOM_STRING
, ns
->code
->resolved_isym
->name
);
4253 mio_symbol_ref (&ns
->code
->resolved_sym
);
4258 pointer_info
*p1
= mio_symbol_ref (sym1
);
4259 pointer_info
*p2
= mio_symbol_ref (sym2
);
4261 gcc_assert (p1
->u
.rsym
.ns
== p2
->u
.rsym
.ns
);
4262 gcc_assert (p1
->u
.rsym
.sym
== NULL
);
4263 /* Add hidden symbols to the symtree. */
4264 pointer_info
*q
= get_integer (p1
->u
.rsym
.ns
);
4265 q
->u
.pointer
= (void *) ns
;
4266 sym
= gfc_new_symbol (is_initializer
? "omp_priv" : "omp_out", ns
);
4268 sym
->module
= gfc_get_string ("%s", p1
->u
.rsym
.module
);
4269 associate_integer_pointer (p1
, sym
);
4270 sym
->attr
.omp_udr_artificial_var
= 1;
4271 gcc_assert (p2
->u
.rsym
.sym
== NULL
);
4272 sym
= gfc_new_symbol (is_initializer
? "omp_orig" : "omp_in", ns
);
4274 sym
->module
= gfc_get_string ("%s", p2
->u
.rsym
.module
);
4275 associate_integer_pointer (p2
, sym
);
4276 sym
->attr
.omp_udr_artificial_var
= 1;
4277 if (mio_name (0, omp_declare_reduction_stmt
) == 0)
4279 ns
->code
= gfc_get_code (EXEC_ASSIGN
);
4280 mio_expr (&ns
->code
->expr1
);
4281 mio_expr (&ns
->code
->expr2
);
4286 ns
->code
= gfc_get_code (EXEC_CALL
);
4287 mio_symtree_ref (&ns
->code
->symtree
);
4288 mio_actual_arglist (&ns
->code
->ext
.actual
, false);
4290 mio_integer (&flag
);
4293 require_atom (ATOM_STRING
);
4294 ns
->code
->resolved_isym
= gfc_find_subroutine (atom_string
);
4298 mio_symbol_ref (&ns
->code
->resolved_sym
);
4300 ns
->code
->loc
= gfc_current_locus
;
4306 /* Unlike most other routines, the address of the symbol node is already
4307 fixed on input and the name/module has already been filled in.
4308 If you update the symbol format here, don't forget to update read_module
4309 as well (look for "seek to the symbol's component list"). */
4312 mio_symbol (gfc_symbol
*sym
)
4314 int intmod
= INTMOD_NONE
;
4318 mio_symbol_attribute (&sym
->attr
);
4320 /* Note that components are always saved, even if they are supposed
4321 to be private. Component access is checked during searching. */
4322 mio_component_list (&sym
->components
, sym
->attr
.vtype
);
4323 if (sym
->components
!= NULL
)
4324 sym
->component_access
4325 = MIO_NAME (gfc_access
) (sym
->component_access
, access_types
);
4327 mio_typespec (&sym
->ts
);
4328 if (sym
->ts
.type
== BT_CLASS
)
4329 sym
->attr
.class_ok
= 1;
4331 if (iomode
== IO_OUTPUT
)
4332 mio_namespace_ref (&sym
->formal_ns
);
4335 mio_namespace_ref (&sym
->formal_ns
);
4337 sym
->formal_ns
->proc_name
= sym
;
4340 /* Save/restore common block links. */
4341 mio_symbol_ref (&sym
->common_next
);
4343 mio_formal_arglist (&sym
->formal
);
4345 if (sym
->attr
.flavor
== FL_PARAMETER
)
4346 mio_expr (&sym
->value
);
4348 mio_array_spec (&sym
->as
);
4350 mio_symbol_ref (&sym
->result
);
4352 if (sym
->attr
.cray_pointee
)
4353 mio_symbol_ref (&sym
->cp_pointer
);
4355 /* Load/save the f2k_derived namespace of a derived-type symbol. */
4356 mio_full_f2k_derived (sym
);
4358 /* PDT types store the symbol specification list here. */
4359 mio_actual_arglist (&sym
->param_list
, true);
4363 /* Add the fields that say whether this is from an intrinsic module,
4364 and if so, what symbol it is within the module. */
4365 /* mio_integer (&(sym->from_intmod)); */
4366 if (iomode
== IO_OUTPUT
)
4368 intmod
= sym
->from_intmod
;
4369 mio_integer (&intmod
);
4373 mio_integer (&intmod
);
4375 sym
->from_intmod
= current_intmod
;
4377 sym
->from_intmod
= (intmod_id
) intmod
;
4380 mio_integer (&(sym
->intmod_sym_id
));
4382 if (gfc_fl_struct (sym
->attr
.flavor
))
4383 mio_integer (&(sym
->hash_value
));
4386 && sym
->formal_ns
->proc_name
== sym
4387 && sym
->formal_ns
->entries
== NULL
)
4388 mio_omp_declare_simd (sym
->formal_ns
, &sym
->formal_ns
->omp_declare_simd
);
4394 /************************* Top level subroutines *************************/
4396 /* A recursive function to look for a specific symbol by name and by
4397 module. Whilst several symtrees might point to one symbol, its
4398 is sufficient for the purposes here than one exist. Note that
4399 generic interfaces are distinguished as are symbols that have been
4400 renamed in another module. */
4401 static gfc_symtree
*
4402 find_symbol (gfc_symtree
*st
, const char *name
,
4403 const char *module
, int generic
)
4406 gfc_symtree
*retval
, *s
;
4408 if (st
== NULL
|| st
->n
.sym
== NULL
)
4411 c
= strcmp (name
, st
->n
.sym
->name
);
4412 if (c
== 0 && st
->n
.sym
->module
4413 && strcmp (module
, st
->n
.sym
->module
) == 0
4414 && !check_unique_name (st
->name
))
4416 s
= gfc_find_symtree (gfc_current_ns
->sym_root
, name
);
4418 /* Detect symbols that are renamed by use association in another
4419 module by the absence of a symtree and null attr.use_rename,
4420 since the latter is not transmitted in the module file. */
4421 if (((!generic
&& !st
->n
.sym
->attr
.generic
)
4422 || (generic
&& st
->n
.sym
->attr
.generic
))
4423 && !(s
== NULL
&& !st
->n
.sym
->attr
.use_rename
))
4427 retval
= find_symbol (st
->left
, name
, module
, generic
);
4430 retval
= find_symbol (st
->right
, name
, module
, generic
);
4436 /* Skip a list between balanced left and right parens.
4437 By setting NEST_LEVEL one assumes that a number of NEST_LEVEL opening parens
4438 have been already parsed by hand, and the remaining of the content is to be
4439 skipped here. The default value is 0 (balanced parens). */
4442 skip_list (int nest_level
= 0)
4449 switch (parse_atom ())
4472 /* Load operator interfaces from the module. Interfaces are unusual
4473 in that they attach themselves to existing symbols. */
4476 load_operator_interfaces (void)
4479 char name
[GFC_MAX_SYMBOL_LEN
+ 1], module
[GFC_MAX_SYMBOL_LEN
+ 1];
4481 pointer_info
*pi
= NULL
;
4486 while (peek_atom () != ATOM_RPAREN
)
4490 mio_internal_string (name
);
4491 mio_internal_string (module
);
4493 n
= number_use_names (name
, true);
4496 for (i
= 1; i
<= n
; i
++)
4498 /* Decide if we need to load this one or not. */
4499 p
= find_use_name_n (name
, &i
, true);
4503 while (parse_atom () != ATOM_RPAREN
);
4509 uop
= gfc_get_uop (p
);
4510 pi
= mio_interface_rest (&uop
->op
);
4514 if (gfc_find_uop (p
, NULL
))
4516 uop
= gfc_get_uop (p
);
4517 uop
->op
= gfc_get_interface ();
4518 uop
->op
->where
= gfc_current_locus
;
4519 add_fixup (pi
->integer
, &uop
->op
->sym
);
4528 /* Load interfaces from the module. Interfaces are unusual in that
4529 they attach themselves to existing symbols. */
4532 load_generic_interfaces (void)
4535 char name
[GFC_MAX_SYMBOL_LEN
+ 1], module
[GFC_MAX_SYMBOL_LEN
+ 1];
4537 gfc_interface
*generic
= NULL
, *gen
= NULL
;
4539 bool ambiguous_set
= false;
4543 while (peek_atom () != ATOM_RPAREN
)
4547 mio_internal_string (name
);
4548 mio_internal_string (module
);
4550 n
= number_use_names (name
, false);
4551 renamed
= n
? 1 : 0;
4554 for (i
= 1; i
<= n
; i
++)
4557 /* Decide if we need to load this one or not. */
4558 p
= find_use_name_n (name
, &i
, false);
4560 st
= find_symbol (gfc_current_ns
->sym_root
,
4561 name
, module_name
, 1);
4563 if (!p
|| gfc_find_symbol (p
, NULL
, 0, &sym
))
4565 /* Skip the specific names for these cases. */
4566 while (i
== 1 && parse_atom () != ATOM_RPAREN
);
4571 /* If the symbol exists already and is being USEd without being
4572 in an ONLY clause, do not load a new symtree(11.3.2). */
4573 if (!only_flag
&& st
)
4581 if (strcmp (st
->name
, p
) != 0)
4583 st
= gfc_new_symtree (&gfc_current_ns
->sym_root
, p
);
4589 /* Since we haven't found a valid generic interface, we had
4593 gfc_get_symbol (p
, NULL
, &sym
);
4594 sym
->name
= gfc_get_string ("%s", name
);
4595 sym
->module
= module_name
;
4596 sym
->attr
.flavor
= FL_PROCEDURE
;
4597 sym
->attr
.generic
= 1;
4598 sym
->attr
.use_assoc
= 1;
4603 /* Unless sym is a generic interface, this reference
4606 st
= gfc_find_symtree (gfc_current_ns
->sym_root
, p
);
4610 if (st
&& !sym
->attr
.generic
4613 && strcmp (module
, sym
->module
))
4615 ambiguous_set
= true;
4620 sym
->attr
.use_only
= only_flag
;
4621 sym
->attr
.use_rename
= renamed
;
4625 mio_interface_rest (&sym
->generic
);
4626 generic
= sym
->generic
;
4628 else if (!sym
->generic
)
4630 sym
->generic
= generic
;
4631 sym
->attr
.generic_copy
= 1;
4634 /* If a procedure that is not generic has generic interfaces
4635 that include itself, it is generic! We need to take care
4636 to retain symbols ambiguous that were already so. */
4637 if (sym
->attr
.use_assoc
4638 && !sym
->attr
.generic
4639 && sym
->attr
.flavor
== FL_PROCEDURE
)
4641 for (gen
= generic
; gen
; gen
= gen
->next
)
4643 if (gen
->sym
== sym
)
4645 sym
->attr
.generic
= 1;
4660 /* Load common blocks. */
4665 char name
[GFC_MAX_SYMBOL_LEN
+ 1];
4670 while (peek_atom () != ATOM_RPAREN
)
4675 mio_internal_string (name
);
4677 p
= gfc_get_common (name
, 1);
4679 mio_symbol_ref (&p
->head
);
4680 mio_integer (&flags
);
4684 p
->threadprivate
= 1;
4687 /* Get whether this was a bind(c) common or not. */
4688 mio_integer (&p
->is_bind_c
);
4689 /* Get the binding label. */
4690 label
= read_string ();
4692 p
->binding_label
= IDENTIFIER_POINTER (get_identifier (label
));
4702 /* Load equivalences. The flag in_load_equiv informs mio_expr_ref of this
4703 so that unused variables are not loaded and so that the expression can
4709 gfc_equiv
*head
, *tail
, *end
, *eq
, *equiv
;
4713 in_load_equiv
= true;
4715 end
= gfc_current_ns
->equiv
;
4716 while (end
!= NULL
&& end
->next
!= NULL
)
4719 while (peek_atom () != ATOM_RPAREN
) {
4723 while(peek_atom () != ATOM_RPAREN
)
4726 head
= tail
= gfc_get_equiv ();
4729 tail
->eq
= gfc_get_equiv ();
4733 mio_pool_string (&tail
->module
);
4734 mio_expr (&tail
->expr
);
4737 /* Check for duplicate equivalences being loaded from different modules */
4739 for (equiv
= gfc_current_ns
->equiv
; equiv
; equiv
= equiv
->next
)
4741 if (equiv
->module
&& head
->module
4742 && strcmp (equiv
->module
, head
->module
) == 0)
4751 for (eq
= head
; eq
; eq
= head
)
4754 gfc_free_expr (eq
->expr
);
4760 gfc_current_ns
->equiv
= head
;
4771 in_load_equiv
= false;
4775 /* This function loads OpenMP user defined reductions. */
4777 load_omp_udrs (void)
4780 while (peek_atom () != ATOM_RPAREN
)
4782 const char *name
= NULL
, *newname
;
4786 gfc_omp_reduction_op rop
= OMP_REDUCTION_USER
;
4789 mio_pool_string (&name
);
4792 if (strncmp (name
, "operator ", sizeof ("operator ") - 1) == 0)
4794 const char *p
= name
+ sizeof ("operator ") - 1;
4795 if (strcmp (p
, "+") == 0)
4796 rop
= OMP_REDUCTION_PLUS
;
4797 else if (strcmp (p
, "*") == 0)
4798 rop
= OMP_REDUCTION_TIMES
;
4799 else if (strcmp (p
, "-") == 0)
4800 rop
= OMP_REDUCTION_MINUS
;
4801 else if (strcmp (p
, ".and.") == 0)
4802 rop
= OMP_REDUCTION_AND
;
4803 else if (strcmp (p
, ".or.") == 0)
4804 rop
= OMP_REDUCTION_OR
;
4805 else if (strcmp (p
, ".eqv.") == 0)
4806 rop
= OMP_REDUCTION_EQV
;
4807 else if (strcmp (p
, ".neqv.") == 0)
4808 rop
= OMP_REDUCTION_NEQV
;
4811 if (rop
== OMP_REDUCTION_USER
&& name
[0] == '.')
4813 size_t len
= strlen (name
+ 1);
4814 altname
= XALLOCAVEC (char, len
);
4815 gcc_assert (name
[len
] == '.');
4816 memcpy (altname
, name
+ 1, len
- 1);
4817 altname
[len
- 1] = '\0';
4820 if (rop
== OMP_REDUCTION_USER
)
4821 newname
= find_use_name (altname
? altname
: name
, !!altname
);
4822 else if (only_flag
&& find_use_operator ((gfc_intrinsic_op
) rop
) == NULL
)
4824 if (newname
== NULL
)
4829 if (altname
&& newname
!= altname
)
4831 size_t len
= strlen (newname
);
4832 altname
= XALLOCAVEC (char, len
+ 3);
4834 memcpy (altname
+ 1, newname
, len
);
4835 altname
[len
+ 1] = '.';
4836 altname
[len
+ 2] = '\0';
4837 name
= gfc_get_string ("%s", altname
);
4839 st
= gfc_find_symtree (gfc_current_ns
->omp_udr_root
, name
);
4840 gfc_omp_udr
*udr
= gfc_omp_udr_find (st
, &ts
);
4843 require_atom (ATOM_INTEGER
);
4844 pointer_info
*p
= get_integer (atom_int
);
4845 if (strcmp (p
->u
.rsym
.module
, udr
->omp_out
->module
))
4847 gfc_error ("Ambiguous !$OMP DECLARE REDUCTION from "
4849 p
->u
.rsym
.module
, &gfc_current_locus
);
4850 gfc_error ("Previous !$OMP DECLARE REDUCTION from module "
4852 udr
->omp_out
->module
, &udr
->where
);
4857 udr
= gfc_get_omp_udr ();
4861 udr
->where
= gfc_current_locus
;
4862 udr
->combiner_ns
= gfc_get_namespace (gfc_current_ns
, 1);
4863 udr
->combiner_ns
->proc_name
= gfc_current_ns
->proc_name
;
4864 mio_omp_udr_expr (udr
, &udr
->omp_out
, &udr
->omp_in
, udr
->combiner_ns
,
4866 if (peek_atom () != ATOM_RPAREN
)
4868 udr
->initializer_ns
= gfc_get_namespace (gfc_current_ns
, 1);
4869 udr
->initializer_ns
->proc_name
= gfc_current_ns
->proc_name
;
4870 mio_omp_udr_expr (udr
, &udr
->omp_priv
, &udr
->omp_orig
,
4871 udr
->initializer_ns
, true);
4875 udr
->next
= st
->n
.omp_udr
;
4876 st
->n
.omp_udr
= udr
;
4880 st
= gfc_new_symtree (&gfc_current_ns
->omp_udr_root
, name
);
4881 st
->n
.omp_udr
= udr
;
4889 /* Recursive function to traverse the pointer_info tree and load a
4890 needed symbol. We return nonzero if we load a symbol and stop the
4891 traversal, because the act of loading can alter the tree. */
4894 load_needed (pointer_info
*p
)
4905 rv
|= load_needed (p
->left
);
4906 rv
|= load_needed (p
->right
);
4908 if (p
->type
!= P_SYMBOL
|| p
->u
.rsym
.state
!= NEEDED
)
4911 p
->u
.rsym
.state
= USED
;
4913 set_module_locus (&p
->u
.rsym
.where
);
4915 sym
= p
->u
.rsym
.sym
;
4918 q
= get_integer (p
->u
.rsym
.ns
);
4920 ns
= (gfc_namespace
*) q
->u
.pointer
;
4923 /* Create an interface namespace if necessary. These are
4924 the namespaces that hold the formal parameters of module
4927 ns
= gfc_get_namespace (NULL
, 0);
4928 associate_integer_pointer (q
, ns
);
4931 /* Use the module sym as 'proc_name' so that gfc_get_symbol_decl
4932 doesn't go pear-shaped if the symbol is used. */
4934 gfc_find_symbol (p
->u
.rsym
.module
, gfc_current_ns
,
4937 sym
= gfc_new_symbol (p
->u
.rsym
.true_name
, ns
);
4938 sym
->name
= gfc_dt_lower_string (p
->u
.rsym
.true_name
);
4939 sym
->module
= gfc_get_string ("%s", p
->u
.rsym
.module
);
4940 if (p
->u
.rsym
.binding_label
)
4941 sym
->binding_label
= IDENTIFIER_POINTER (get_identifier
4942 (p
->u
.rsym
.binding_label
));
4944 associate_integer_pointer (p
, sym
);
4948 sym
->attr
.use_assoc
= 1;
4950 /* Unliked derived types, a STRUCTURE may share names with other symbols.
4951 We greedily converted the the symbol name to lowercase before we knew its
4952 type, so now we must fix it. */
4953 if (sym
->attr
.flavor
== FL_STRUCT
)
4954 sym
->name
= gfc_dt_upper_string (sym
->name
);
4956 /* Mark as only or rename for later diagnosis for explicitly imported
4957 but not used warnings; don't mark internal symbols such as __vtab,
4958 __def_init etc. Only mark them if they have been explicitly loaded. */
4960 if (only_flag
&& sym
->name
[0] != '_' && sym
->name
[1] != '_')
4964 /* Search the use/rename list for the variable; if the variable is
4966 for (u
= gfc_rename_list
; u
; u
= u
->next
)
4968 if (strcmp (u
->use_name
, sym
->name
) == 0)
4970 sym
->attr
.use_only
= 1;
4976 if (p
->u
.rsym
.renamed
)
4977 sym
->attr
.use_rename
= 1;
4983 /* Recursive function for cleaning up things after a module has been read. */
4986 read_cleanup (pointer_info
*p
)
4994 read_cleanup (p
->left
);
4995 read_cleanup (p
->right
);
4997 if (p
->type
== P_SYMBOL
&& p
->u
.rsym
.state
== USED
&& !p
->u
.rsym
.referenced
)
5000 /* Add hidden symbols to the symtree. */
5001 q
= get_integer (p
->u
.rsym
.ns
);
5002 ns
= (gfc_namespace
*) q
->u
.pointer
;
5004 if (!p
->u
.rsym
.sym
->attr
.vtype
5005 && !p
->u
.rsym
.sym
->attr
.vtab
)
5006 st
= gfc_get_unique_symtree (ns
);
5009 /* There is no reason to use 'unique_symtrees' for vtabs or
5010 vtypes - their name is fine for a symtree and reduces the
5011 namespace pollution. */
5012 st
= gfc_find_symtree (ns
->sym_root
, p
->u
.rsym
.sym
->name
);
5014 st
= gfc_new_symtree (&ns
->sym_root
, p
->u
.rsym
.sym
->name
);
5017 st
->n
.sym
= p
->u
.rsym
.sym
;
5020 /* Fixup any symtree references. */
5021 p
->u
.rsym
.symtree
= st
;
5022 resolve_fixups (p
->u
.rsym
.stfixup
, st
);
5023 p
->u
.rsym
.stfixup
= NULL
;
5026 /* Free unused symbols. */
5027 if (p
->type
== P_SYMBOL
&& p
->u
.rsym
.state
== UNUSED
)
5028 gfc_free_symbol (p
->u
.rsym
.sym
);
5032 /* It is not quite enough to check for ambiguity in the symbols by
5033 the loaded symbol and the new symbol not being identical. */
5035 check_for_ambiguous (gfc_symtree
*st
, pointer_info
*info
)
5039 symbol_attribute attr
;
5042 if (gfc_current_ns
->proc_name
&& st
->name
== gfc_current_ns
->proc_name
->name
)
5044 gfc_error ("%qs of module %qs, imported at %C, is also the name of the "
5045 "current program unit", st
->name
, module_name
);
5050 rsym
= info
->u
.rsym
.sym
;
5054 if (st_sym
->attr
.vtab
|| st_sym
->attr
.vtype
)
5057 /* If the existing symbol is generic from a different module and
5058 the new symbol is generic there can be no ambiguity. */
5059 if (st_sym
->attr
.generic
5061 && st_sym
->module
!= module_name
)
5063 /* The new symbol's attributes have not yet been read. Since
5064 we need attr.generic, read it directly. */
5065 get_module_locus (&locus
);
5066 set_module_locus (&info
->u
.rsym
.where
);
5069 mio_symbol_attribute (&attr
);
5070 set_module_locus (&locus
);
5079 /* Read a module file. */
5084 module_locus operator_interfaces
, user_operators
, omp_udrs
;
5086 char name
[GFC_MAX_SYMBOL_LEN
+ 1];
5088 /* Workaround -Wmaybe-uninitialized false positive during
5089 profiledbootstrap by initializing them. */
5090 int ambiguous
= 0, j
, nuse
, symbol
= 0;
5091 pointer_info
*info
, *q
;
5092 gfc_use_rename
*u
= NULL
;
5096 get_module_locus (&operator_interfaces
); /* Skip these for now. */
5099 get_module_locus (&user_operators
);
5103 /* Skip commons and equivalences for now. */
5107 /* Skip OpenMP UDRs. */
5108 get_module_locus (&omp_udrs
);
5113 /* Create the fixup nodes for all the symbols. */
5115 while (peek_atom () != ATOM_RPAREN
)
5118 require_atom (ATOM_INTEGER
);
5119 info
= get_integer (atom_int
);
5121 info
->type
= P_SYMBOL
;
5122 info
->u
.rsym
.state
= UNUSED
;
5124 info
->u
.rsym
.true_name
= read_string ();
5125 info
->u
.rsym
.module
= read_string ();
5126 bind_label
= read_string ();
5127 if (strlen (bind_label
))
5128 info
->u
.rsym
.binding_label
= bind_label
;
5130 XDELETEVEC (bind_label
);
5132 require_atom (ATOM_INTEGER
);
5133 info
->u
.rsym
.ns
= atom_int
;
5135 get_module_locus (&info
->u
.rsym
.where
);
5137 /* See if the symbol has already been loaded by a previous module.
5138 If so, we reference the existing symbol and prevent it from
5139 being loaded again. This should not happen if the symbol being
5140 read is an index for an assumed shape dummy array (ns != 1). */
5142 sym
= find_true_name (info
->u
.rsym
.true_name
, info
->u
.rsym
.module
);
5145 || (sym
->attr
.flavor
== FL_VARIABLE
&& info
->u
.rsym
.ns
!=1))
5151 info
->u
.rsym
.state
= USED
;
5152 info
->u
.rsym
.sym
= sym
;
5153 /* The current symbol has already been loaded, so we can avoid loading
5154 it again. However, if it is a derived type, some of its components
5155 can be used in expressions in the module. To avoid the module loading
5156 failing, we need to associate the module's component pointer indexes
5157 with the existing symbol's component pointers. */
5158 if (gfc_fl_struct (sym
->attr
.flavor
))
5162 /* First seek to the symbol's component list. */
5163 mio_lparen (); /* symbol opening. */
5164 skip_list (); /* skip symbol attribute. */
5166 mio_lparen (); /* component list opening. */
5167 for (c
= sym
->components
; c
; c
= c
->next
)
5170 const char *comp_name
;
5173 mio_lparen (); /* component opening. */
5175 p
= get_integer (n
);
5176 if (p
->u
.pointer
== NULL
)
5177 associate_integer_pointer (p
, c
);
5178 mio_pool_string (&comp_name
);
5179 gcc_assert (comp_name
== c
->name
);
5180 skip_list (1); /* component end. */
5182 mio_rparen (); /* component list closing. */
5184 skip_list (1); /* symbol end. */
5189 /* Some symbols do not have a namespace (eg. formal arguments),
5190 so the automatic "unique symtree" mechanism must be suppressed
5191 by marking them as referenced. */
5192 q
= get_integer (info
->u
.rsym
.ns
);
5193 if (q
->u
.pointer
== NULL
)
5195 info
->u
.rsym
.referenced
= 1;
5202 /* Parse the symtree lists. This lets us mark which symbols need to
5203 be loaded. Renaming is also done at this point by replacing the
5208 while (peek_atom () != ATOM_RPAREN
)
5210 mio_internal_string (name
);
5211 mio_integer (&ambiguous
);
5212 mio_integer (&symbol
);
5214 info
= get_integer (symbol
);
5216 /* See how many use names there are. If none, go through the start
5217 of the loop at least once. */
5218 nuse
= number_use_names (name
, false);
5219 info
->u
.rsym
.renamed
= nuse
? 1 : 0;
5224 for (j
= 1; j
<= nuse
; j
++)
5226 /* Get the jth local name for this symbol. */
5227 p
= find_use_name_n (name
, &j
, false);
5229 if (p
== NULL
&& strcmp (name
, module_name
) == 0)
5232 /* Exception: Always import vtabs & vtypes. */
5233 if (p
== NULL
&& name
[0] == '_'
5234 && (strncmp (name
, "__vtab_", 5) == 0
5235 || strncmp (name
, "__vtype_", 6) == 0))
5238 /* Skip symtree nodes not in an ONLY clause, unless there
5239 is an existing symtree loaded from another USE statement. */
5242 st
= gfc_find_symtree (gfc_current_ns
->sym_root
, name
);
5244 && strcmp (st
->n
.sym
->name
, info
->u
.rsym
.true_name
) == 0
5245 && st
->n
.sym
->module
!= NULL
5246 && strcmp (st
->n
.sym
->module
, info
->u
.rsym
.module
) == 0)
5248 info
->u
.rsym
.symtree
= st
;
5249 info
->u
.rsym
.sym
= st
->n
.sym
;
5254 /* If a symbol of the same name and module exists already,
5255 this symbol, which is not in an ONLY clause, must not be
5256 added to the namespace(11.3.2). Note that find_symbol
5257 only returns the first occurrence that it finds. */
5258 if (!only_flag
&& !info
->u
.rsym
.renamed
5259 && strcmp (name
, module_name
) != 0
5260 && find_symbol (gfc_current_ns
->sym_root
, name
,
5264 st
= gfc_find_symtree (gfc_current_ns
->sym_root
, p
);
5267 && !(st
->n
.sym
&& st
->n
.sym
->attr
.used_in_submodule
))
5269 /* Check for ambiguous symbols. */
5270 if (check_for_ambiguous (st
, info
))
5273 info
->u
.rsym
.symtree
= st
;
5279 /* This symbol is host associated from a module in a
5280 submodule. Hide it with a unique symtree. */
5281 gfc_symtree
*s
= gfc_get_unique_symtree (gfc_current_ns
);
5282 s
->n
.sym
= st
->n
.sym
;
5287 /* Create a symtree node in the current namespace for this
5289 st
= check_unique_name (p
)
5290 ? gfc_get_unique_symtree (gfc_current_ns
)
5291 : gfc_new_symtree (&gfc_current_ns
->sym_root
, p
);
5292 st
->ambiguous
= ambiguous
;
5295 sym
= info
->u
.rsym
.sym
;
5297 /* Create a symbol node if it doesn't already exist. */
5300 info
->u
.rsym
.sym
= gfc_new_symbol (info
->u
.rsym
.true_name
,
5302 info
->u
.rsym
.sym
->name
= gfc_dt_lower_string (info
->u
.rsym
.true_name
);
5303 sym
= info
->u
.rsym
.sym
;
5304 sym
->module
= gfc_get_string ("%s", info
->u
.rsym
.module
);
5306 if (info
->u
.rsym
.binding_label
)
5308 tree id
= get_identifier (info
->u
.rsym
.binding_label
);
5309 sym
->binding_label
= IDENTIFIER_POINTER (id
);
5316 if (strcmp (name
, p
) != 0)
5317 sym
->attr
.use_rename
= 1;
5320 || (strncmp (name
, "__vtab_", 5) != 0
5321 && strncmp (name
, "__vtype_", 6) != 0))
5322 sym
->attr
.use_only
= only_flag
;
5324 /* Store the symtree pointing to this symbol. */
5325 info
->u
.rsym
.symtree
= st
;
5327 if (info
->u
.rsym
.state
== UNUSED
)
5328 info
->u
.rsym
.state
= NEEDED
;
5329 info
->u
.rsym
.referenced
= 1;
5336 /* Load intrinsic operator interfaces. */
5337 set_module_locus (&operator_interfaces
);
5340 for (i
= GFC_INTRINSIC_BEGIN
; i
!= GFC_INTRINSIC_END
; i
++)
5342 if (i
== INTRINSIC_USER
)
5347 u
= find_use_operator ((gfc_intrinsic_op
) i
);
5358 mio_interface (&gfc_current_ns
->op
[i
]);
5359 if (u
&& !gfc_current_ns
->op
[i
])
5365 /* Load generic and user operator interfaces. These must follow the
5366 loading of symtree because otherwise symbols can be marked as
5369 set_module_locus (&user_operators
);
5371 load_operator_interfaces ();
5372 load_generic_interfaces ();
5377 /* Load OpenMP user defined reductions. */
5378 set_module_locus (&omp_udrs
);
5381 /* At this point, we read those symbols that are needed but haven't
5382 been loaded yet. If one symbol requires another, the other gets
5383 marked as NEEDED if its previous state was UNUSED. */
5385 while (load_needed (pi_root
));
5387 /* Make sure all elements of the rename-list were found in the module. */
5389 for (u
= gfc_rename_list
; u
; u
= u
->next
)
5394 if (u
->op
== INTRINSIC_NONE
)
5396 gfc_error ("Symbol %qs referenced at %L not found in module %qs",
5397 u
->use_name
, &u
->where
, module_name
);
5401 if (u
->op
== INTRINSIC_USER
)
5403 gfc_error ("User operator %qs referenced at %L not found "
5404 "in module %qs", u
->use_name
, &u
->where
, module_name
);
5408 gfc_error ("Intrinsic operator %qs referenced at %L not found "
5409 "in module %qs", gfc_op2string (u
->op
), &u
->where
,
5413 /* Clean up symbol nodes that were never loaded, create references
5414 to hidden symbols. */
5416 read_cleanup (pi_root
);
5420 /* Given an access type that is specific to an entity and the default
5421 access, return nonzero if the entity is publicly accessible. If the
5422 element is declared as PUBLIC, then it is public; if declared
5423 PRIVATE, then private, and otherwise it is public unless the default
5424 access in this context has been declared PRIVATE. */
5426 static bool dump_smod
= false;
5429 check_access (gfc_access specific_access
, gfc_access default_access
)
5434 if (specific_access
== ACCESS_PUBLIC
)
5436 if (specific_access
== ACCESS_PRIVATE
)
5439 if (flag_module_private
)
5440 return default_access
== ACCESS_PUBLIC
;
5442 return default_access
!= ACCESS_PRIVATE
;
5447 gfc_check_symbol_access (gfc_symbol
*sym
)
5449 if (sym
->attr
.vtab
|| sym
->attr
.vtype
)
5452 return check_access (sym
->attr
.access
, sym
->ns
->default_access
);
5456 /* A structure to remember which commons we've already written. */
5458 struct written_common
5460 BBT_HEADER(written_common
);
5461 const char *name
, *label
;
5464 static struct written_common
*written_commons
= NULL
;
5466 /* Comparison function used for balancing the binary tree. */
5469 compare_written_commons (void *a1
, void *b1
)
5471 const char *aname
= ((struct written_common
*) a1
)->name
;
5472 const char *alabel
= ((struct written_common
*) a1
)->label
;
5473 const char *bname
= ((struct written_common
*) b1
)->name
;
5474 const char *blabel
= ((struct written_common
*) b1
)->label
;
5475 int c
= strcmp (aname
, bname
);
5477 return (c
!= 0 ? c
: strcmp (alabel
, blabel
));
5480 /* Free a list of written commons. */
5483 free_written_common (struct written_common
*w
)
5489 free_written_common (w
->left
);
5491 free_written_common (w
->right
);
5496 /* Write a common block to the module -- recursive helper function. */
5499 write_common_0 (gfc_symtree
*st
, bool this_module
)
5505 struct written_common
*w
;
5506 bool write_me
= true;
5511 write_common_0 (st
->left
, this_module
);
5513 /* We will write out the binding label, or "" if no label given. */
5514 name
= st
->n
.common
->name
;
5516 label
= (p
->is_bind_c
&& p
->binding_label
) ? p
->binding_label
: "";
5518 /* Check if we've already output this common. */
5519 w
= written_commons
;
5522 int c
= strcmp (name
, w
->name
);
5523 c
= (c
!= 0 ? c
: strcmp (label
, w
->label
));
5527 w
= (c
< 0) ? w
->left
: w
->right
;
5530 if (this_module
&& p
->use_assoc
)
5535 /* Write the common to the module. */
5537 mio_pool_string (&name
);
5539 mio_symbol_ref (&p
->head
);
5540 flags
= p
->saved
? 1 : 0;
5541 if (p
->threadprivate
)
5543 mio_integer (&flags
);
5545 /* Write out whether the common block is bind(c) or not. */
5546 mio_integer (&(p
->is_bind_c
));
5548 mio_pool_string (&label
);
5551 /* Record that we have written this common. */
5552 w
= XCNEW (struct written_common
);
5555 gfc_insert_bbt (&written_commons
, w
, compare_written_commons
);
5558 write_common_0 (st
->right
, this_module
);
5562 /* Write a common, by initializing the list of written commons, calling
5563 the recursive function write_common_0() and cleaning up afterwards. */
5566 write_common (gfc_symtree
*st
)
5568 written_commons
= NULL
;
5569 write_common_0 (st
, true);
5570 write_common_0 (st
, false);
5571 free_written_common (written_commons
);
5572 written_commons
= NULL
;
5576 /* Write the blank common block to the module. */
5579 write_blank_common (void)
5581 const char * name
= BLANK_COMMON_NAME
;
5583 /* TODO: Blank commons are not bind(c). The F2003 standard probably says
5584 this, but it hasn't been checked. Just making it so for now. */
5587 if (gfc_current_ns
->blank_common
.head
== NULL
)
5592 mio_pool_string (&name
);
5594 mio_symbol_ref (&gfc_current_ns
->blank_common
.head
);
5595 saved
= gfc_current_ns
->blank_common
.saved
;
5596 mio_integer (&saved
);
5598 /* Write out whether the common block is bind(c) or not. */
5599 mio_integer (&is_bind_c
);
5601 /* Write out an empty binding label. */
5602 write_atom (ATOM_STRING
, "");
5608 /* Write equivalences to the module. */
5617 for (eq
= gfc_current_ns
->equiv
; eq
; eq
= eq
->next
)
5621 for (e
= eq
; e
; e
= e
->eq
)
5623 if (e
->module
== NULL
)
5624 e
->module
= gfc_get_string ("%s.eq.%d", module_name
, num
);
5625 mio_allocated_string (e
->module
);
5626 mio_expr (&e
->expr
);
5635 /* Write a symbol to the module. */
5638 write_symbol (int n
, gfc_symbol
*sym
)
5642 if (sym
->attr
.flavor
== FL_UNKNOWN
|| sym
->attr
.flavor
== FL_LABEL
)
5643 gfc_internal_error ("write_symbol(): bad module symbol %qs", sym
->name
);
5647 if (gfc_fl_struct (sym
->attr
.flavor
))
5650 name
= gfc_dt_upper_string (sym
->name
);
5651 mio_pool_string (&name
);
5654 mio_pool_string (&sym
->name
);
5656 mio_pool_string (&sym
->module
);
5657 if ((sym
->attr
.is_bind_c
|| sym
->attr
.is_iso_c
) && sym
->binding_label
)
5659 label
= sym
->binding_label
;
5660 mio_pool_string (&label
);
5663 write_atom (ATOM_STRING
, "");
5665 mio_pointer_ref (&sym
->ns
);
5672 /* Recursive traversal function to write the initial set of symbols to
5673 the module. We check to see if the symbol should be written
5674 according to the access specification. */
5677 write_symbol0 (gfc_symtree
*st
)
5681 bool dont_write
= false;
5686 write_symbol0 (st
->left
);
5689 if (sym
->module
== NULL
)
5690 sym
->module
= module_name
;
5692 if (sym
->attr
.flavor
== FL_PROCEDURE
&& sym
->attr
.generic
5693 && !sym
->attr
.subroutine
&& !sym
->attr
.function
)
5696 if (!gfc_check_symbol_access (sym
))
5701 p
= get_pointer (sym
);
5702 if (p
->type
== P_UNKNOWN
)
5705 if (p
->u
.wsym
.state
!= WRITTEN
)
5707 write_symbol (p
->integer
, sym
);
5708 p
->u
.wsym
.state
= WRITTEN
;
5712 write_symbol0 (st
->right
);
5717 write_omp_udr (gfc_omp_udr
*udr
)
5721 case OMP_REDUCTION_USER
:
5722 /* Non-operators can't be used outside of the module. */
5723 if (udr
->name
[0] != '.')
5728 size_t len
= strlen (udr
->name
+ 1);
5729 char *name
= XALLOCAVEC (char, len
);
5730 memcpy (name
, udr
->name
, len
- 1);
5731 name
[len
- 1] = '\0';
5732 st
= gfc_find_symtree (gfc_current_ns
->uop_root
, name
);
5733 /* If corresponding user operator is private, don't write
5737 gfc_user_op
*uop
= st
->n
.uop
;
5738 if (!check_access (uop
->access
, uop
->ns
->default_access
))
5743 case OMP_REDUCTION_PLUS
:
5744 case OMP_REDUCTION_MINUS
:
5745 case OMP_REDUCTION_TIMES
:
5746 case OMP_REDUCTION_AND
:
5747 case OMP_REDUCTION_OR
:
5748 case OMP_REDUCTION_EQV
:
5749 case OMP_REDUCTION_NEQV
:
5750 /* If corresponding operator is private, don't write the UDR. */
5751 if (!check_access (gfc_current_ns
->operator_access
[udr
->rop
],
5752 gfc_current_ns
->default_access
))
5758 if (udr
->ts
.type
== BT_DERIVED
|| udr
->ts
.type
== BT_CLASS
)
5760 /* If derived type is private, don't write the UDR. */
5761 if (!gfc_check_symbol_access (udr
->ts
.u
.derived
))
5766 mio_pool_string (&udr
->name
);
5767 mio_typespec (&udr
->ts
);
5768 mio_omp_udr_expr (udr
, &udr
->omp_out
, &udr
->omp_in
, udr
->combiner_ns
, false);
5769 if (udr
->initializer_ns
)
5770 mio_omp_udr_expr (udr
, &udr
->omp_priv
, &udr
->omp_orig
,
5771 udr
->initializer_ns
, true);
5777 write_omp_udrs (gfc_symtree
*st
)
5782 write_omp_udrs (st
->left
);
5784 for (udr
= st
->n
.omp_udr
; udr
; udr
= udr
->next
)
5785 write_omp_udr (udr
);
5786 write_omp_udrs (st
->right
);
5790 /* Type for the temporary tree used when writing secondary symbols. */
5792 struct sorted_pointer_info
5794 BBT_HEADER (sorted_pointer_info
);
5799 #define gfc_get_sorted_pointer_info() XCNEW (sorted_pointer_info)
5801 /* Recursively traverse the temporary tree, free its contents. */
5804 free_sorted_pointer_info_tree (sorted_pointer_info
*p
)
5809 free_sorted_pointer_info_tree (p
->left
);
5810 free_sorted_pointer_info_tree (p
->right
);
5815 /* Comparison function for the temporary tree. */
5818 compare_sorted_pointer_info (void *_spi1
, void *_spi2
)
5820 sorted_pointer_info
*spi1
, *spi2
;
5821 spi1
= (sorted_pointer_info
*)_spi1
;
5822 spi2
= (sorted_pointer_info
*)_spi2
;
5824 if (spi1
->p
->integer
< spi2
->p
->integer
)
5826 if (spi1
->p
->integer
> spi2
->p
->integer
)
5832 /* Finds the symbols that need to be written and collects them in the
5833 sorted_pi tree so that they can be traversed in an order
5834 independent of memory addresses. */
5837 find_symbols_to_write(sorted_pointer_info
**tree
, pointer_info
*p
)
5842 if (p
->type
== P_SYMBOL
&& p
->u
.wsym
.state
== NEEDS_WRITE
)
5844 sorted_pointer_info
*sp
= gfc_get_sorted_pointer_info();
5847 gfc_insert_bbt (tree
, sp
, compare_sorted_pointer_info
);
5850 find_symbols_to_write (tree
, p
->left
);
5851 find_symbols_to_write (tree
, p
->right
);
5855 /* Recursive function that traverses the tree of symbols that need to be
5856 written and writes them in order. */
5859 write_symbol1_recursion (sorted_pointer_info
*sp
)
5864 write_symbol1_recursion (sp
->left
);
5866 pointer_info
*p1
= sp
->p
;
5867 gcc_assert (p1
->type
== P_SYMBOL
&& p1
->u
.wsym
.state
== NEEDS_WRITE
);
5869 p1
->u
.wsym
.state
= WRITTEN
;
5870 write_symbol (p1
->integer
, p1
->u
.wsym
.sym
);
5871 p1
->u
.wsym
.sym
->attr
.public_used
= 1;
5873 write_symbol1_recursion (sp
->right
);
5877 /* Write the secondary set of symbols to the module file. These are
5878 symbols that were not public yet are needed by the public symbols
5879 or another dependent symbol. The act of writing a symbol can add
5880 symbols to the pointer_info tree, so we return nonzero if a symbol
5881 was written and pass that information upwards. The caller will
5882 then call this function again until nothing was written. It uses
5883 the utility functions and a temporary tree to ensure a reproducible
5884 ordering of the symbol output and thus the module file. */
5887 write_symbol1 (pointer_info
*p
)
5892 /* Put symbols that need to be written into a tree sorted on the
5895 sorted_pointer_info
*spi_root
= NULL
;
5896 find_symbols_to_write (&spi_root
, p
);
5898 /* No symbols to write, return. */
5902 /* Otherwise, write and free the tree again. */
5903 write_symbol1_recursion (spi_root
);
5904 free_sorted_pointer_info_tree (spi_root
);
5910 /* Write operator interfaces associated with a symbol. */
5913 write_operator (gfc_user_op
*uop
)
5915 static char nullstring
[] = "";
5916 const char *p
= nullstring
;
5918 if (uop
->op
== NULL
|| !check_access (uop
->access
, uop
->ns
->default_access
))
5921 mio_symbol_interface (&uop
->name
, &p
, &uop
->op
);
5925 /* Write generic interfaces from the namespace sym_root. */
5928 write_generic (gfc_symtree
*st
)
5935 write_generic (st
->left
);
5938 if (sym
&& !check_unique_name (st
->name
)
5939 && sym
->generic
&& gfc_check_symbol_access (sym
))
5942 sym
->module
= module_name
;
5944 mio_symbol_interface (&st
->name
, &sym
->module
, &sym
->generic
);
5947 write_generic (st
->right
);
5952 write_symtree (gfc_symtree
*st
)
5959 /* A symbol in an interface body must not be visible in the
5961 if (sym
->ns
!= gfc_current_ns
5962 && sym
->ns
->proc_name
5963 && sym
->ns
->proc_name
->attr
.if_source
== IFSRC_IFBODY
)
5966 if (!gfc_check_symbol_access (sym
)
5967 || (sym
->attr
.flavor
== FL_PROCEDURE
&& sym
->attr
.generic
5968 && !sym
->attr
.subroutine
&& !sym
->attr
.function
))
5971 if (check_unique_name (st
->name
))
5974 p
= find_pointer (sym
);
5976 gfc_internal_error ("write_symtree(): Symbol not written");
5978 mio_pool_string (&st
->name
);
5979 mio_integer (&st
->ambiguous
);
5980 mio_hwi (&p
->integer
);
5989 /* Write the operator interfaces. */
5992 for (i
= GFC_INTRINSIC_BEGIN
; i
!= GFC_INTRINSIC_END
; i
++)
5994 if (i
== INTRINSIC_USER
)
5997 mio_interface (check_access (gfc_current_ns
->operator_access
[i
],
5998 gfc_current_ns
->default_access
)
5999 ? &gfc_current_ns
->op
[i
] : NULL
);
6007 gfc_traverse_user_op (gfc_current_ns
, write_operator
);
6013 write_generic (gfc_current_ns
->sym_root
);
6019 write_blank_common ();
6020 write_common (gfc_current_ns
->common_root
);
6032 write_omp_udrs (gfc_current_ns
->omp_udr_root
);
6037 /* Write symbol information. First we traverse all symbols in the
6038 primary namespace, writing those that need to be written.
6039 Sometimes writing one symbol will cause another to need to be
6040 written. A list of these symbols ends up on the write stack, and
6041 we end by popping the bottom of the stack and writing the symbol
6042 until the stack is empty. */
6046 write_symbol0 (gfc_current_ns
->sym_root
);
6047 while (write_symbol1 (pi_root
))
6056 gfc_traverse_symtree (gfc_current_ns
->sym_root
, write_symtree
);
6061 /* Read a CRC32 sum from the gzip trailer of a module file. Returns
6062 true on success, false on failure. */
6065 read_crc32_from_module_file (const char* filename
, uLong
* crc
)
6071 /* Open the file in binary mode. */
6072 if ((file
= fopen (filename
, "rb")) == NULL
)
6075 /* The gzip crc32 value is found in the [END-8, END-4] bytes of the
6076 file. See RFC 1952. */
6077 if (fseek (file
, -8, SEEK_END
) != 0)
6083 /* Read the CRC32. */
6084 if (fread (buf
, 1, 4, file
) != 4)
6090 /* Close the file. */
6093 val
= (buf
[0] & 0xFF) + ((buf
[1] & 0xFF) << 8) + ((buf
[2] & 0xFF) << 16)
6094 + ((buf
[3] & 0xFF) << 24);
6097 /* For debugging, the CRC value printed in hexadecimal should match
6098 the CRC printed by "zcat -l -v filename".
6099 printf("CRC of file %s is %x\n", filename, val); */
6105 /* Given module, dump it to disk. If there was an error while
6106 processing the module, dump_flag will be set to zero and we delete
6107 the module file, even if it was already there. */
6110 dump_module (const char *name
, int dump_flag
)
6113 char *filename
, *filename_tmp
;
6116 module_name
= gfc_get_string ("%s", name
);
6120 name
= submodule_name
;
6121 n
= strlen (name
) + strlen (SUBMODULE_EXTENSION
) + 1;
6124 n
= strlen (name
) + strlen (MODULE_EXTENSION
) + 1;
6126 if (gfc_option
.module_dir
!= NULL
)
6128 n
+= strlen (gfc_option
.module_dir
);
6129 filename
= (char *) alloca (n
);
6130 strcpy (filename
, gfc_option
.module_dir
);
6131 strcat (filename
, name
);
6135 filename
= (char *) alloca (n
);
6136 strcpy (filename
, name
);
6140 strcat (filename
, SUBMODULE_EXTENSION
);
6142 strcat (filename
, MODULE_EXTENSION
);
6144 /* Name of the temporary file used to write the module. */
6145 filename_tmp
= (char *) alloca (n
+ 1);
6146 strcpy (filename_tmp
, filename
);
6147 strcat (filename_tmp
, "0");
6149 /* There was an error while processing the module. We delete the
6150 module file, even if it was already there. */
6157 if (gfc_cpp_makedep ())
6158 gfc_cpp_add_target (filename
);
6160 /* Write the module to the temporary file. */
6161 module_fp
= gzopen (filename_tmp
, "w");
6162 if (module_fp
== NULL
)
6163 gfc_fatal_error ("Can't open module file %qs for writing at %C: %s",
6164 filename_tmp
, xstrerror (errno
));
6166 /* Use lbasename to ensure module files are reproducible regardless
6167 of the build path (see the reproducible builds project). */
6168 gzprintf (module_fp
, "GFORTRAN module version '%s' created from %s\n",
6169 MOD_VERSION
, lbasename (gfc_source_file
));
6171 /* Write the module itself. */
6178 free_pi_tree (pi_root
);
6183 if (gzclose (module_fp
))
6184 gfc_fatal_error ("Error writing module file %qs for writing: %s",
6185 filename_tmp
, xstrerror (errno
));
6187 /* Read the CRC32 from the gzip trailers of the module files and
6189 if (!read_crc32_from_module_file (filename_tmp
, &crc
)
6190 || !read_crc32_from_module_file (filename
, &crc_old
)
6193 /* Module file have changed, replace the old one. */
6194 if (remove (filename
) && errno
!= ENOENT
)
6195 gfc_fatal_error ("Can't delete module file %qs: %s", filename
,
6197 if (rename (filename_tmp
, filename
))
6198 gfc_fatal_error ("Can't rename module file %qs to %qs: %s",
6199 filename_tmp
, filename
, xstrerror (errno
));
6203 if (remove (filename_tmp
))
6204 gfc_fatal_error ("Can't delete temporary module file %qs: %s",
6205 filename_tmp
, xstrerror (errno
));
6210 /* Suppress the output of a .smod file by module, if no module
6211 procedures have been seen. */
6212 static bool no_module_procedures
;
6215 check_for_module_procedures (gfc_symbol
*sym
)
6217 if (sym
&& sym
->attr
.module_procedure
)
6218 no_module_procedures
= false;
6223 gfc_dump_module (const char *name
, int dump_flag
)
6225 if (gfc_state_stack
->state
== COMP_SUBMODULE
)
6230 no_module_procedures
= true;
6231 gfc_traverse_ns (gfc_current_ns
, check_for_module_procedures
);
6233 dump_module (name
, dump_flag
);
6235 if (no_module_procedures
|| dump_smod
)
6238 /* Write a submodule file from a module. The 'dump_smod' flag switches
6239 off the check for PRIVATE entities. */
6241 submodule_name
= module_name
;
6242 dump_module (name
, dump_flag
);
6247 create_intrinsic_function (const char *name
, int id
,
6248 const char *modname
, intmod_id module
,
6249 bool subroutine
, gfc_symbol
*result_type
)
6251 gfc_intrinsic_sym
*isym
;
6252 gfc_symtree
*tmp_symtree
;
6255 tmp_symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, name
);
6258 if (tmp_symtree
->n
.sym
&& tmp_symtree
->n
.sym
->module
6259 && strcmp (modname
, tmp_symtree
->n
.sym
->module
) == 0)
6261 gfc_error ("Symbol %qs at %C already declared", name
);
6265 gfc_get_sym_tree (name
, gfc_current_ns
, &tmp_symtree
, false);
6266 sym
= tmp_symtree
->n
.sym
;
6270 gfc_isym_id isym_id
= gfc_isym_id_by_intmod (module
, id
);
6271 isym
= gfc_intrinsic_subroutine_by_id (isym_id
);
6272 sym
->attr
.subroutine
= 1;
6276 gfc_isym_id isym_id
= gfc_isym_id_by_intmod (module
, id
);
6277 isym
= gfc_intrinsic_function_by_id (isym_id
);
6279 sym
->attr
.function
= 1;
6282 sym
->ts
.type
= BT_DERIVED
;
6283 sym
->ts
.u
.derived
= result_type
;
6284 sym
->ts
.is_c_interop
= 1;
6285 isym
->ts
.f90_type
= BT_VOID
;
6286 isym
->ts
.type
= BT_DERIVED
;
6287 isym
->ts
.f90_type
= BT_VOID
;
6288 isym
->ts
.u
.derived
= result_type
;
6289 isym
->ts
.is_c_interop
= 1;
6294 sym
->attr
.flavor
= FL_PROCEDURE
;
6295 sym
->attr
.intrinsic
= 1;
6297 sym
->module
= gfc_get_string ("%s", modname
);
6298 sym
->attr
.use_assoc
= 1;
6299 sym
->from_intmod
= module
;
6300 sym
->intmod_sym_id
= id
;
6304 /* Import the intrinsic ISO_C_BINDING module, generating symbols in
6305 the current namespace for all named constants, pointer types, and
6306 procedures in the module unless the only clause was used or a rename
6307 list was provided. */
6310 import_iso_c_binding_module (void)
6312 gfc_symbol
*mod_sym
= NULL
, *return_type
;
6313 gfc_symtree
*mod_symtree
= NULL
, *tmp_symtree
;
6314 gfc_symtree
*c_ptr
= NULL
, *c_funptr
= NULL
;
6315 const char *iso_c_module_name
= "__iso_c_binding";
6318 bool want_c_ptr
= false, want_c_funptr
= false;
6320 /* Look only in the current namespace. */
6321 mod_symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, iso_c_module_name
);
6323 if (mod_symtree
== NULL
)
6325 /* symtree doesn't already exist in current namespace. */
6326 gfc_get_sym_tree (iso_c_module_name
, gfc_current_ns
, &mod_symtree
,
6329 if (mod_symtree
!= NULL
)
6330 mod_sym
= mod_symtree
->n
.sym
;
6332 gfc_internal_error ("import_iso_c_binding_module(): Unable to "
6333 "create symbol for %s", iso_c_module_name
);
6335 mod_sym
->attr
.flavor
= FL_MODULE
;
6336 mod_sym
->attr
.intrinsic
= 1;
6337 mod_sym
->module
= gfc_get_string ("%s", iso_c_module_name
);
6338 mod_sym
->from_intmod
= INTMOD_ISO_C_BINDING
;
6341 /* Check whether C_PTR or C_FUNPTR are in the include list, if so, load it;
6342 check also whether C_NULL_(FUN)PTR or C_(FUN)LOC are requested, which
6344 for (u
= gfc_rename_list
; u
; u
= u
->next
)
6346 if (strcmp (c_interop_kinds_table
[ISOCBINDING_NULL_PTR
].name
,
6349 else if (strcmp (c_interop_kinds_table
[ISOCBINDING_LOC
].name
,
6352 else if (strcmp (c_interop_kinds_table
[ISOCBINDING_NULL_FUNPTR
].name
,
6354 want_c_funptr
= true;
6355 else if (strcmp (c_interop_kinds_table
[ISOCBINDING_FUNLOC
].name
,
6357 want_c_funptr
= true;
6358 else if (strcmp (c_interop_kinds_table
[ISOCBINDING_PTR
].name
,
6361 c_ptr
= generate_isocbinding_symbol (iso_c_module_name
,
6362 (iso_c_binding_symbol
)
6364 u
->local_name
[0] ? u
->local_name
6368 else if (strcmp (c_interop_kinds_table
[ISOCBINDING_FUNPTR
].name
,
6372 = generate_isocbinding_symbol (iso_c_module_name
,
6373 (iso_c_binding_symbol
)
6375 u
->local_name
[0] ? u
->local_name
6381 if ((want_c_ptr
|| !only_flag
) && !c_ptr
)
6382 c_ptr
= generate_isocbinding_symbol (iso_c_module_name
,
6383 (iso_c_binding_symbol
)
6385 NULL
, NULL
, only_flag
);
6386 if ((want_c_funptr
|| !only_flag
) && !c_funptr
)
6387 c_funptr
= generate_isocbinding_symbol (iso_c_module_name
,
6388 (iso_c_binding_symbol
)
6390 NULL
, NULL
, only_flag
);
6392 /* Generate the symbols for the named constants representing
6393 the kinds for intrinsic data types. */
6394 for (i
= 0; i
< ISOCBINDING_NUMBER
; i
++)
6397 for (u
= gfc_rename_list
; u
; u
= u
->next
)
6398 if (strcmp (c_interop_kinds_table
[i
].name
, u
->use_name
) == 0)
6407 #define NAMED_FUNCTION(a,b,c,d) \
6409 not_in_std = (gfc_option.allow_std & d) == 0; \
6412 #define NAMED_SUBROUTINE(a,b,c,d) \
6414 not_in_std = (gfc_option.allow_std & d) == 0; \
6417 #define NAMED_INTCST(a,b,c,d) \
6419 not_in_std = (gfc_option.allow_std & d) == 0; \
6422 #define NAMED_REALCST(a,b,c,d) \
6424 not_in_std = (gfc_option.allow_std & d) == 0; \
6427 #define NAMED_CMPXCST(a,b,c,d) \
6429 not_in_std = (gfc_option.allow_std & d) == 0; \
6432 #include "iso-c-binding.def"
6440 gfc_error ("The symbol %qs, referenced at %L, is not "
6441 "in the selected standard", name
, &u
->where
);
6447 #define NAMED_FUNCTION(a,b,c,d) \
6449 if (a == ISOCBINDING_LOC) \
6450 return_type = c_ptr->n.sym; \
6451 else if (a == ISOCBINDING_FUNLOC) \
6452 return_type = c_funptr->n.sym; \
6454 return_type = NULL; \
6455 create_intrinsic_function (u->local_name[0] \
6456 ? u->local_name : u->use_name, \
6457 a, iso_c_module_name, \
6458 INTMOD_ISO_C_BINDING, false, \
6461 #define NAMED_SUBROUTINE(a,b,c,d) \
6463 create_intrinsic_function (u->local_name[0] ? u->local_name \
6465 a, iso_c_module_name, \
6466 INTMOD_ISO_C_BINDING, true, NULL); \
6468 #include "iso-c-binding.def"
6470 case ISOCBINDING_PTR
:
6471 case ISOCBINDING_FUNPTR
:
6472 /* Already handled above. */
6475 if (i
== ISOCBINDING_NULL_PTR
)
6476 tmp_symtree
= c_ptr
;
6477 else if (i
== ISOCBINDING_NULL_FUNPTR
)
6478 tmp_symtree
= c_funptr
;
6481 generate_isocbinding_symbol (iso_c_module_name
,
6482 (iso_c_binding_symbol
) i
,
6484 ? u
->local_name
: u
->use_name
,
6485 tmp_symtree
, false);
6489 if (!found
&& !only_flag
)
6491 /* Skip, if the symbol is not in the enabled standard. */
6494 #define NAMED_FUNCTION(a,b,c,d) \
6496 if ((gfc_option.allow_std & d) == 0) \
6499 #define NAMED_SUBROUTINE(a,b,c,d) \
6501 if ((gfc_option.allow_std & d) == 0) \
6504 #define NAMED_INTCST(a,b,c,d) \
6506 if ((gfc_option.allow_std & d) == 0) \
6509 #define NAMED_REALCST(a,b,c,d) \
6511 if ((gfc_option.allow_std & d) == 0) \
6514 #define NAMED_CMPXCST(a,b,c,d) \
6516 if ((gfc_option.allow_std & d) == 0) \
6519 #include "iso-c-binding.def"
6521 ; /* Not GFC_STD_* versioned. */
6526 #define NAMED_FUNCTION(a,b,c,d) \
6528 if (a == ISOCBINDING_LOC) \
6529 return_type = c_ptr->n.sym; \
6530 else if (a == ISOCBINDING_FUNLOC) \
6531 return_type = c_funptr->n.sym; \
6533 return_type = NULL; \
6534 create_intrinsic_function (b, a, iso_c_module_name, \
6535 INTMOD_ISO_C_BINDING, false, \
6538 #define NAMED_SUBROUTINE(a,b,c,d) \
6540 create_intrinsic_function (b, a, iso_c_module_name, \
6541 INTMOD_ISO_C_BINDING, true, NULL); \
6543 #include "iso-c-binding.def"
6545 case ISOCBINDING_PTR
:
6546 case ISOCBINDING_FUNPTR
:
6547 /* Already handled above. */
6550 if (i
== ISOCBINDING_NULL_PTR
)
6551 tmp_symtree
= c_ptr
;
6552 else if (i
== ISOCBINDING_NULL_FUNPTR
)
6553 tmp_symtree
= c_funptr
;
6556 generate_isocbinding_symbol (iso_c_module_name
,
6557 (iso_c_binding_symbol
) i
, NULL
,
6558 tmp_symtree
, false);
6563 for (u
= gfc_rename_list
; u
; u
= u
->next
)
6568 gfc_error ("Symbol %qs referenced at %L not found in intrinsic "
6569 "module ISO_C_BINDING", u
->use_name
, &u
->where
);
6574 /* Add an integer named constant from a given module. */
6577 create_int_parameter (const char *name
, int value
, const char *modname
,
6578 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
->value
= gfc_get_int_expr (gfc_default_integer_kind
, NULL
, value
);
6600 sym
->attr
.use_assoc
= 1;
6601 sym
->from_intmod
= module
;
6602 sym
->intmod_sym_id
= id
;
6606 /* Value is already contained by the array constructor, but not
6610 create_int_parameter_array (const char *name
, int size
, gfc_expr
*value
,
6611 const char *modname
, intmod_id module
, int id
)
6613 gfc_symtree
*tmp_symtree
;
6616 tmp_symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, name
);
6617 if (tmp_symtree
!= NULL
)
6619 if (strcmp (modname
, tmp_symtree
->n
.sym
->module
) == 0)
6622 gfc_error ("Symbol %qs already declared", name
);
6625 gfc_get_sym_tree (name
, gfc_current_ns
, &tmp_symtree
, false);
6626 sym
= tmp_symtree
->n
.sym
;
6628 sym
->module
= gfc_get_string ("%s", modname
);
6629 sym
->attr
.flavor
= FL_PARAMETER
;
6630 sym
->ts
.type
= BT_INTEGER
;
6631 sym
->ts
.kind
= gfc_default_integer_kind
;
6632 sym
->attr
.use_assoc
= 1;
6633 sym
->from_intmod
= module
;
6634 sym
->intmod_sym_id
= id
;
6635 sym
->attr
.dimension
= 1;
6636 sym
->as
= gfc_get_array_spec ();
6638 sym
->as
->type
= AS_EXPLICIT
;
6639 sym
->as
->lower
[0] = gfc_get_int_expr (gfc_default_integer_kind
, NULL
, 1);
6640 sym
->as
->upper
[0] = gfc_get_int_expr (gfc_default_integer_kind
, NULL
, size
);
6643 sym
->value
->shape
= gfc_get_shape (1);
6644 mpz_init_set_ui (sym
->value
->shape
[0], size
);
6648 /* Add an derived type for a given module. */
6651 create_derived_type (const char *name
, const char *modname
,
6652 intmod_id module
, int id
)
6654 gfc_symtree
*tmp_symtree
;
6655 gfc_symbol
*sym
, *dt_sym
;
6656 gfc_interface
*intr
, *head
;
6658 tmp_symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, name
);
6659 if (tmp_symtree
!= NULL
)
6661 if (strcmp (modname
, tmp_symtree
->n
.sym
->module
) == 0)
6664 gfc_error ("Symbol %qs already declared", name
);
6667 gfc_get_sym_tree (name
, gfc_current_ns
, &tmp_symtree
, false);
6668 sym
= tmp_symtree
->n
.sym
;
6669 sym
->module
= gfc_get_string ("%s", modname
);
6670 sym
->from_intmod
= module
;
6671 sym
->intmod_sym_id
= id
;
6672 sym
->attr
.flavor
= FL_PROCEDURE
;
6673 sym
->attr
.function
= 1;
6674 sym
->attr
.generic
= 1;
6676 gfc_get_sym_tree (gfc_dt_upper_string (sym
->name
),
6677 gfc_current_ns
, &tmp_symtree
, false);
6678 dt_sym
= tmp_symtree
->n
.sym
;
6679 dt_sym
->name
= gfc_get_string ("%s", sym
->name
);
6680 dt_sym
->attr
.flavor
= FL_DERIVED
;
6681 dt_sym
->attr
.private_comp
= 1;
6682 dt_sym
->attr
.zero_comp
= 1;
6683 dt_sym
->attr
.use_assoc
= 1;
6684 dt_sym
->module
= gfc_get_string ("%s", modname
);
6685 dt_sym
->from_intmod
= module
;
6686 dt_sym
->intmod_sym_id
= id
;
6688 head
= sym
->generic
;
6689 intr
= gfc_get_interface ();
6691 intr
->where
= gfc_current_locus
;
6693 sym
->generic
= intr
;
6694 sym
->attr
.if_source
= IFSRC_DECL
;
6698 /* Read the contents of the module file into a temporary buffer. */
6701 read_module_to_tmpbuf ()
6703 /* We don't know the uncompressed size, so enlarge the buffer as
6709 module_content
= XNEWVEC (char, cursz
);
6713 int nread
= gzread (module_fp
, module_content
+ len
, rsize
);
6718 module_content
= XRESIZEVEC (char, module_content
, cursz
);
6719 rsize
= cursz
- len
;
6722 module_content
= XRESIZEVEC (char, module_content
, len
+ 1);
6723 module_content
[len
] = '\0';
6729 /* USE the ISO_FORTRAN_ENV intrinsic module. */
6732 use_iso_fortran_env_module (void)
6734 static char mod
[] = "iso_fortran_env";
6736 gfc_symbol
*mod_sym
;
6737 gfc_symtree
*mod_symtree
;
6741 intmod_sym symbol
[] = {
6742 #define NAMED_INTCST(a,b,c,d) { a, b, 0, d },
6743 #define NAMED_KINDARRAY(a,b,c,d) { a, b, 0, d },
6744 #define NAMED_DERIVED_TYPE(a,b,c,d) { a, b, 0, d },
6745 #define NAMED_FUNCTION(a,b,c,d) { a, b, c, d },
6746 #define NAMED_SUBROUTINE(a,b,c,d) { a, b, c, d },
6747 #include "iso-fortran-env.def"
6748 { ISOFORTRANENV_INVALID
, NULL
, -1234, 0 } };
6751 #define NAMED_INTCST(a,b,c,d) symbol[i++].value = c;
6752 #include "iso-fortran-env.def"
6754 /* Generate the symbol for the module itself. */
6755 mod_symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, mod
);
6756 if (mod_symtree
== NULL
)
6758 gfc_get_sym_tree (mod
, gfc_current_ns
, &mod_symtree
, false);
6759 gcc_assert (mod_symtree
);
6760 mod_sym
= mod_symtree
->n
.sym
;
6762 mod_sym
->attr
.flavor
= FL_MODULE
;
6763 mod_sym
->attr
.intrinsic
= 1;
6764 mod_sym
->module
= gfc_get_string ("%s", mod
);
6765 mod_sym
->from_intmod
= INTMOD_ISO_FORTRAN_ENV
;
6768 if (!mod_symtree
->n
.sym
->attr
.intrinsic
)
6769 gfc_error ("Use of intrinsic module %qs at %C conflicts with "
6770 "non-intrinsic module name used previously", mod
);
6772 /* Generate the symbols for the module integer named constants. */
6774 for (i
= 0; symbol
[i
].name
; i
++)
6777 for (u
= gfc_rename_list
; u
; u
= u
->next
)
6779 if (strcmp (symbol
[i
].name
, u
->use_name
) == 0)
6784 if (!gfc_notify_std (symbol
[i
].standard
, "The symbol %qs, "
6785 "referenced at %L, is not in the selected "
6786 "standard", symbol
[i
].name
, &u
->where
))
6789 if ((flag_default_integer
|| flag_default_real_8
)
6790 && symbol
[i
].id
== ISOFORTRANENV_NUMERIC_STORAGE_SIZE
)
6791 gfc_warning_now (0, "Use of the NUMERIC_STORAGE_SIZE named "
6792 "constant from intrinsic module "
6793 "ISO_FORTRAN_ENV at %L is incompatible with "
6794 "option %qs", &u
->where
,
6795 flag_default_integer
6796 ? "-fdefault-integer-8"
6797 : "-fdefault-real-8");
6798 switch (symbol
[i
].id
)
6800 #define NAMED_INTCST(a,b,c,d) \
6802 #include "iso-fortran-env.def"
6803 create_int_parameter (u
->local_name
[0] ? u
->local_name
6805 symbol
[i
].value
, mod
,
6806 INTMOD_ISO_FORTRAN_ENV
, symbol
[i
].id
);
6809 #define NAMED_KINDARRAY(a,b,KINDS,d) \
6811 expr = gfc_get_array_expr (BT_INTEGER, \
6812 gfc_default_integer_kind,\
6814 for (j = 0; KINDS[j].kind != 0; j++) \
6815 gfc_constructor_append_expr (&expr->value.constructor, \
6816 gfc_get_int_expr (gfc_default_integer_kind, NULL, \
6817 KINDS[j].kind), NULL); \
6818 create_int_parameter_array (u->local_name[0] ? u->local_name \
6821 INTMOD_ISO_FORTRAN_ENV, \
6824 #include "iso-fortran-env.def"
6826 #define NAMED_DERIVED_TYPE(a,b,TYPE,STD) \
6828 #include "iso-fortran-env.def"
6829 create_derived_type (u
->local_name
[0] ? u
->local_name
6831 mod
, INTMOD_ISO_FORTRAN_ENV
,
6835 #define NAMED_FUNCTION(a,b,c,d) \
6837 #include "iso-fortran-env.def"
6838 create_intrinsic_function (u
->local_name
[0] ? u
->local_name
6841 INTMOD_ISO_FORTRAN_ENV
, false,
6851 if (!found
&& !only_flag
)
6853 if ((gfc_option
.allow_std
& symbol
[i
].standard
) == 0)
6856 if ((flag_default_integer
|| flag_default_real_8
)
6857 && symbol
[i
].id
== ISOFORTRANENV_NUMERIC_STORAGE_SIZE
)
6859 "Use of the NUMERIC_STORAGE_SIZE named constant "
6860 "from intrinsic module ISO_FORTRAN_ENV at %C is "
6861 "incompatible with option %s",
6862 flag_default_integer
6863 ? "-fdefault-integer-8" : "-fdefault-real-8");
6865 switch (symbol
[i
].id
)
6867 #define NAMED_INTCST(a,b,c,d) \
6869 #include "iso-fortran-env.def"
6870 create_int_parameter (symbol
[i
].name
, symbol
[i
].value
, mod
,
6871 INTMOD_ISO_FORTRAN_ENV
, symbol
[i
].id
);
6874 #define NAMED_KINDARRAY(a,b,KINDS,d) \
6876 expr = gfc_get_array_expr (BT_INTEGER, gfc_default_integer_kind, \
6878 for (j = 0; KINDS[j].kind != 0; j++) \
6879 gfc_constructor_append_expr (&expr->value.constructor, \
6880 gfc_get_int_expr (gfc_default_integer_kind, NULL, \
6881 KINDS[j].kind), NULL); \
6882 create_int_parameter_array (symbol[i].name, j, expr, mod, \
6883 INTMOD_ISO_FORTRAN_ENV, symbol[i].id);\
6885 #include "iso-fortran-env.def"
6887 #define NAMED_DERIVED_TYPE(a,b,TYPE,STD) \
6889 #include "iso-fortran-env.def"
6890 create_derived_type (symbol
[i
].name
, mod
, INTMOD_ISO_FORTRAN_ENV
,
6894 #define NAMED_FUNCTION(a,b,c,d) \
6896 #include "iso-fortran-env.def"
6897 create_intrinsic_function (symbol
[i
].name
, symbol
[i
].id
, mod
,
6898 INTMOD_ISO_FORTRAN_ENV
, false,
6908 for (u
= gfc_rename_list
; u
; u
= u
->next
)
6913 gfc_error ("Symbol %qs referenced at %L not found in intrinsic "
6914 "module ISO_FORTRAN_ENV", u
->use_name
, &u
->where
);
6919 /* Process a USE directive. */
6922 gfc_use_module (gfc_use_list
*module
)
6927 gfc_symtree
*mod_symtree
;
6928 gfc_use_list
*use_stmt
;
6929 locus old_locus
= gfc_current_locus
;
6931 gfc_current_locus
= module
->where
;
6932 module_name
= module
->module_name
;
6933 gfc_rename_list
= module
->rename
;
6934 only_flag
= module
->only_flag
;
6935 current_intmod
= INTMOD_NONE
;
6938 gfc_warning_now (OPT_Wuse_without_only
,
6939 "USE statement at %C has no ONLY qualifier");
6941 if (gfc_state_stack
->state
== COMP_MODULE
6942 || module
->submodule_name
== NULL
)
6944 filename
= XALLOCAVEC (char, strlen (module_name
)
6945 + strlen (MODULE_EXTENSION
) + 1);
6946 strcpy (filename
, module_name
);
6947 strcat (filename
, MODULE_EXTENSION
);
6951 filename
= XALLOCAVEC (char, strlen (module
->submodule_name
)
6952 + strlen (SUBMODULE_EXTENSION
) + 1);
6953 strcpy (filename
, module
->submodule_name
);
6954 strcat (filename
, SUBMODULE_EXTENSION
);
6957 /* First, try to find an non-intrinsic module, unless the USE statement
6958 specified that the module is intrinsic. */
6960 if (!module
->intrinsic
)
6961 module_fp
= gzopen_included_file (filename
, true, true);
6963 /* Then, see if it's an intrinsic one, unless the USE statement
6964 specified that the module is non-intrinsic. */
6965 if (module_fp
== NULL
&& !module
->non_intrinsic
)
6967 if (strcmp (module_name
, "iso_fortran_env") == 0
6968 && gfc_notify_std (GFC_STD_F2003
, "ISO_FORTRAN_ENV "
6969 "intrinsic module at %C"))
6971 use_iso_fortran_env_module ();
6972 free_rename (module
->rename
);
6973 module
->rename
= NULL
;
6974 gfc_current_locus
= old_locus
;
6975 module
->intrinsic
= true;
6979 if (strcmp (module_name
, "iso_c_binding") == 0
6980 && gfc_notify_std (GFC_STD_F2003
, "ISO_C_BINDING module at %C"))
6982 import_iso_c_binding_module();
6983 free_rename (module
->rename
);
6984 module
->rename
= NULL
;
6985 gfc_current_locus
= old_locus
;
6986 module
->intrinsic
= true;
6990 module_fp
= gzopen_intrinsic_module (filename
);
6992 if (module_fp
== NULL
&& module
->intrinsic
)
6993 gfc_fatal_error ("Can't find an intrinsic module named %qs at %C",
6996 /* Check for the IEEE modules, so we can mark their symbols
6997 accordingly when we read them. */
6998 if (strcmp (module_name
, "ieee_features") == 0
6999 && gfc_notify_std (GFC_STD_F2003
, "IEEE_FEATURES module at %C"))
7001 current_intmod
= INTMOD_IEEE_FEATURES
;
7003 else if (strcmp (module_name
, "ieee_exceptions") == 0
7004 && gfc_notify_std (GFC_STD_F2003
,
7005 "IEEE_EXCEPTIONS module at %C"))
7007 current_intmod
= INTMOD_IEEE_EXCEPTIONS
;
7009 else if (strcmp (module_name
, "ieee_arithmetic") == 0
7010 && gfc_notify_std (GFC_STD_F2003
,
7011 "IEEE_ARITHMETIC module at %C"))
7013 current_intmod
= INTMOD_IEEE_ARITHMETIC
;
7017 if (module_fp
== NULL
)
7019 if (gfc_state_stack
->state
!= COMP_SUBMODULE
7020 && module
->submodule_name
== NULL
)
7021 gfc_fatal_error ("Can't open module file %qs for reading at %C: %s",
7022 filename
, xstrerror (errno
));
7024 gfc_fatal_error ("Module file %qs has not been generated, either "
7025 "because the module does not contain a MODULE "
7026 "PROCEDURE or there is an error in the module.",
7030 /* Check that we haven't already USEd an intrinsic module with the
7033 mod_symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, module_name
);
7034 if (mod_symtree
&& mod_symtree
->n
.sym
->attr
.intrinsic
)
7035 gfc_error ("Use of non-intrinsic module %qs at %C conflicts with "
7036 "intrinsic module name used previously", module_name
);
7043 read_module_to_tmpbuf ();
7044 gzclose (module_fp
);
7046 /* Skip the first line of the module, after checking that this is
7047 a gfortran module file. */
7053 bad_module ("Unexpected end of module");
7056 if ((start
== 1 && strcmp (atom_name
, "GFORTRAN") != 0)
7057 || (start
== 2 && strcmp (atom_name
, " module") != 0))
7058 gfc_fatal_error ("File %qs opened at %C is not a GNU Fortran"
7059 " module file", filename
);
7062 if (strcmp (atom_name
, " version") != 0
7063 || module_char () != ' '
7064 || parse_atom () != ATOM_STRING
7065 || strcmp (atom_string
, MOD_VERSION
))
7066 gfc_fatal_error ("Cannot read module file %qs opened at %C,"
7067 " because it was created by a different"
7068 " version of GNU Fortran", filename
);
7077 /* Make sure we're not reading the same module that we may be building. */
7078 for (p
= gfc_state_stack
; p
; p
= p
->previous
)
7079 if ((p
->state
== COMP_MODULE
|| p
->state
== COMP_SUBMODULE
)
7080 && strcmp (p
->sym
->name
, module_name
) == 0)
7081 gfc_fatal_error ("Can't USE the same %smodule we're building",
7082 p
->state
== COMP_SUBMODULE
? "sub" : "");
7085 init_true_name_tree ();
7089 free_true_name (true_name_root
);
7090 true_name_root
= NULL
;
7092 free_pi_tree (pi_root
);
7095 XDELETEVEC (module_content
);
7096 module_content
= NULL
;
7098 use_stmt
= gfc_get_use_list ();
7099 *use_stmt
= *module
;
7100 use_stmt
->next
= gfc_current_ns
->use_stmts
;
7101 gfc_current_ns
->use_stmts
= use_stmt
;
7103 gfc_current_locus
= old_locus
;
7107 /* Remove duplicated intrinsic operators from the rename list. */
7110 rename_list_remove_duplicate (gfc_use_rename
*list
)
7112 gfc_use_rename
*seek
, *last
;
7114 for (; list
; list
= list
->next
)
7115 if (list
->op
!= INTRINSIC_USER
&& list
->op
!= INTRINSIC_NONE
)
7118 for (seek
= list
->next
; seek
; seek
= last
->next
)
7120 if (list
->op
== seek
->op
)
7122 last
->next
= seek
->next
;
7132 /* Process all USE directives. */
7135 gfc_use_modules (void)
7137 gfc_use_list
*next
, *seek
, *last
;
7139 for (next
= module_list
; next
; next
= next
->next
)
7141 bool non_intrinsic
= next
->non_intrinsic
;
7142 bool intrinsic
= next
->intrinsic
;
7143 bool neither
= !non_intrinsic
&& !intrinsic
;
7145 for (seek
= next
->next
; seek
; seek
= seek
->next
)
7147 if (next
->module_name
!= seek
->module_name
)
7150 if (seek
->non_intrinsic
)
7151 non_intrinsic
= true;
7152 else if (seek
->intrinsic
)
7158 if (intrinsic
&& neither
&& !non_intrinsic
)
7163 filename
= XALLOCAVEC (char,
7164 strlen (next
->module_name
)
7165 + strlen (MODULE_EXTENSION
) + 1);
7166 strcpy (filename
, next
->module_name
);
7167 strcat (filename
, MODULE_EXTENSION
);
7168 fp
= gfc_open_included_file (filename
, true, true);
7171 non_intrinsic
= true;
7177 for (seek
= next
->next
; seek
; seek
= last
->next
)
7179 if (next
->module_name
!= seek
->module_name
)
7185 if ((!next
->intrinsic
&& !seek
->intrinsic
)
7186 || (next
->intrinsic
&& seek
->intrinsic
)
7189 if (!seek
->only_flag
)
7190 next
->only_flag
= false;
7193 gfc_use_rename
*r
= seek
->rename
;
7196 r
->next
= next
->rename
;
7197 next
->rename
= seek
->rename
;
7199 last
->next
= seek
->next
;
7207 for (; module_list
; module_list
= next
)
7209 next
= module_list
->next
;
7210 rename_list_remove_duplicate (module_list
->rename
);
7211 gfc_use_module (module_list
);
7214 gfc_rename_list
= NULL
;
7219 gfc_free_use_stmts (gfc_use_list
*use_stmts
)
7222 for (; use_stmts
; use_stmts
= next
)
7224 gfc_use_rename
*next_rename
;
7226 for (; use_stmts
->rename
; use_stmts
->rename
= next_rename
)
7228 next_rename
= use_stmts
->rename
->next
;
7229 free (use_stmts
->rename
);
7231 next
= use_stmts
->next
;
7238 gfc_module_init_2 (void)
7240 last_atom
= ATOM_LPAREN
;
7241 gfc_rename_list
= NULL
;
7247 gfc_module_done_2 (void)
7249 free_rename (gfc_rename_list
);
7250 gfc_rename_list
= NULL
;