1 /* Handle modules, which amounts to loading and saving symbols and
2 their attendant structures.
3 Copyright (C) 2000-2017 Free Software Foundation, Inc.
4 Contributed by Andy Vaught
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify it under
9 the terms of the GNU General Public License as published by the Free
10 Software Foundation; either version 3, or (at your option) any later
13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING3. If not see
20 <http://www.gnu.org/licenses/>. */
22 /* The syntax of gfortran modules resembles that of lisp lists, i.e. a
23 sequence of atoms, which can be left or right parenthesis, names,
24 integers or strings. Parenthesis are always matched which allows
25 us to skip over sections at high speed without having to know
26 anything about the internal structure of the lists. A "name" is
27 usually a fortran 95 identifier, but can also start with '@' in
28 order to reference a hidden symbol.
30 The first line of a module is an informational message about what
31 created the module, the file it came from and when it was created.
32 The second line is a warning for people not to edit the module.
33 The rest of the module looks like:
35 ( ( <Interface info for UPLUS> )
36 ( <Interface info for UMINUS> )
39 ( ( <name of operator interface> <module of op interface> <i/f1> ... )
42 ( ( <name of generic interface> <module of generic interface> <i/f1> ... )
45 ( ( <common name> <symbol> <saved flag>)
51 ( <Symbol Number (in no particular order)>
53 <Module name of symbol>
54 ( <symbol information> )
63 In general, symbols refer to other symbols by their symbol number,
64 which are zero based. Symbols are written to the module in no
69 #include "coretypes.h"
73 #include "stringpool.h"
76 #include "parse.h" /* FIXME */
77 #include "constructor.h"
82 #define MODULE_EXTENSION ".mod"
83 #define SUBMODULE_EXTENSION ".smod"
85 /* Don't put any single quote (') in MOD_VERSION, if you want it to be
87 #define MOD_VERSION "14"
90 /* Structure that describes a position within a module file. */
99 /* Structure for list of symbols of intrinsic modules. */
112 P_UNKNOWN
= 0, P_OTHER
, P_NAMESPACE
, P_COMPONENT
, P_SYMBOL
116 /* The fixup structure lists pointers to pointers that have to
117 be updated when a pointer value becomes known. */
119 typedef struct fixup_t
122 struct fixup_t
*next
;
127 /* Structure for holding extra info needed for pointers being read. */
143 typedef struct pointer_info
145 BBT_HEADER (pointer_info
);
149 /* The first component of each member of the union is the pointer
156 void *pointer
; /* Member for doing pointer searches. */
161 char *true_name
, *module
, *binding_label
;
163 gfc_symtree
*symtree
;
164 enum gfc_rsym_state state
;
165 int ns
, referenced
, renamed
;
173 enum gfc_wsym_state state
;
182 #define gfc_get_pointer_info() XCNEW (pointer_info)
185 /* Local variables */
187 /* The gzFile for the module we're reading or writing. */
188 static gzFile module_fp
;
191 /* The name of the module we're reading (USE'ing) or writing. */
192 static const char *module_name
;
193 /* The name of the .smod file that the submodule will write to. */
194 static const char *submodule_name
;
196 /* Suppress the output of a .smod file by module, if no module
197 procedures have been seen. */
198 static bool no_module_procedures
;
200 static gfc_use_list
*module_list
;
202 /* If we're reading an intrinsic module, this is its ID. */
203 static intmod_id current_intmod
;
205 /* Content of module. */
206 static char* module_content
;
208 static long module_pos
;
209 static int module_line
, module_column
, only_flag
;
210 static int prev_module_line
, prev_module_column
;
213 { IO_INPUT
, IO_OUTPUT
}
216 static gfc_use_rename
*gfc_rename_list
;
217 static pointer_info
*pi_root
;
218 static int symbol_number
; /* Counter for assigning symbol numbers */
220 /* Tells mio_expr_ref to make symbols for unused equivalence members. */
221 static bool in_load_equiv
;
225 /*****************************************************************/
227 /* Pointer/integer conversion. Pointers between structures are stored
228 as integers in the module file. The next couple of subroutines
229 handle this translation for reading and writing. */
231 /* Recursively free the tree of pointer structures. */
234 free_pi_tree (pointer_info
*p
)
239 if (p
->fixup
!= NULL
)
240 gfc_internal_error ("free_pi_tree(): Unresolved fixup");
242 free_pi_tree (p
->left
);
243 free_pi_tree (p
->right
);
245 if (iomode
== IO_INPUT
)
247 XDELETEVEC (p
->u
.rsym
.true_name
);
248 XDELETEVEC (p
->u
.rsym
.module
);
249 XDELETEVEC (p
->u
.rsym
.binding_label
);
256 /* Compare pointers when searching by pointer. Used when writing a
260 compare_pointers (void *_sn1
, void *_sn2
)
262 pointer_info
*sn1
, *sn2
;
264 sn1
= (pointer_info
*) _sn1
;
265 sn2
= (pointer_info
*) _sn2
;
267 if (sn1
->u
.pointer
< sn2
->u
.pointer
)
269 if (sn1
->u
.pointer
> sn2
->u
.pointer
)
276 /* Compare integers when searching by integer. Used when reading a
280 compare_integers (void *_sn1
, void *_sn2
)
282 pointer_info
*sn1
, *sn2
;
284 sn1
= (pointer_info
*) _sn1
;
285 sn2
= (pointer_info
*) _sn2
;
287 if (sn1
->integer
< sn2
->integer
)
289 if (sn1
->integer
> sn2
->integer
)
296 /* Initialize the pointer_info tree. */
305 compare
= (iomode
== IO_INPUT
) ? compare_integers
: compare_pointers
;
307 /* Pointer 0 is the NULL pointer. */
308 p
= gfc_get_pointer_info ();
313 gfc_insert_bbt (&pi_root
, p
, compare
);
315 /* Pointer 1 is the current namespace. */
316 p
= gfc_get_pointer_info ();
317 p
->u
.pointer
= gfc_current_ns
;
319 p
->type
= P_NAMESPACE
;
321 gfc_insert_bbt (&pi_root
, p
, compare
);
327 /* During module writing, call here with a pointer to something,
328 returning the pointer_info node. */
330 static pointer_info
*
331 find_pointer (void *gp
)
338 if (p
->u
.pointer
== gp
)
340 p
= (gp
< p
->u
.pointer
) ? p
->left
: p
->right
;
347 /* Given a pointer while writing, returns the pointer_info tree node,
348 creating it if it doesn't exist. */
350 static pointer_info
*
351 get_pointer (void *gp
)
355 p
= find_pointer (gp
);
359 /* Pointer doesn't have an integer. Give it one. */
360 p
= gfc_get_pointer_info ();
363 p
->integer
= symbol_number
++;
365 gfc_insert_bbt (&pi_root
, p
, compare_pointers
);
371 /* Given an integer during reading, find it in the pointer_info tree,
372 creating the node if not found. */
374 static pointer_info
*
375 get_integer (int integer
)
385 c
= compare_integers (&t
, p
);
389 p
= (c
< 0) ? p
->left
: p
->right
;
395 p
= gfc_get_pointer_info ();
396 p
->integer
= integer
;
399 gfc_insert_bbt (&pi_root
, p
, compare_integers
);
405 /* Resolve any fixups using a known pointer. */
408 resolve_fixups (fixup_t
*f
, void *gp
)
421 /* Convert a string such that it starts with a lower-case character. Used
422 to convert the symtree name of a derived-type to the symbol name or to
423 the name of the associated generic function. */
426 gfc_dt_lower_string (const char *name
)
428 if (name
[0] != (char) TOLOWER ((unsigned char) name
[0]))
429 return gfc_get_string ("%c%s", (char) TOLOWER ((unsigned char) name
[0]),
431 return gfc_get_string ("%s", name
);
435 /* Convert a string such that it starts with an upper-case character. Used to
436 return the symtree-name for a derived type; the symbol name itself and the
437 symtree/symbol name of the associated generic function start with a lower-
441 gfc_dt_upper_string (const char *name
)
443 if (name
[0] != (char) TOUPPER ((unsigned char) name
[0]))
444 return gfc_get_string ("%c%s", (char) TOUPPER ((unsigned char) name
[0]),
446 return gfc_get_string ("%s", name
);
449 /* Call here during module reading when we know what pointer to
450 associate with an integer. Any fixups that exist are resolved at
454 associate_integer_pointer (pointer_info
*p
, void *gp
)
456 if (p
->u
.pointer
!= NULL
)
457 gfc_internal_error ("associate_integer_pointer(): Already associated");
461 resolve_fixups (p
->fixup
, gp
);
467 /* During module reading, given an integer and a pointer to a pointer,
468 either store the pointer from an already-known value or create a
469 fixup structure in order to store things later. Returns zero if
470 the reference has been actually stored, or nonzero if the reference
471 must be fixed later (i.e., associate_integer_pointer must be called
472 sometime later. Returns the pointer_info structure. */
474 static pointer_info
*
475 add_fixup (int integer
, void *gp
)
481 p
= get_integer (integer
);
483 if (p
->integer
== 0 || p
->u
.pointer
!= NULL
)
486 *cp
= (char *) p
->u
.pointer
;
495 f
->pointer
= (void **) gp
;
502 /*****************************************************************/
504 /* Parser related subroutines */
506 /* Free the rename list left behind by a USE statement. */
509 free_rename (gfc_use_rename
*list
)
511 gfc_use_rename
*next
;
513 for (; list
; list
= next
)
521 /* Match a USE statement. */
526 char name
[GFC_MAX_SYMBOL_LEN
+ 1], module_nature
[GFC_MAX_SYMBOL_LEN
+ 1];
527 gfc_use_rename
*tail
= NULL
, *new_use
;
528 interface_type type
, type2
;
531 gfc_use_list
*use_list
;
533 use_list
= gfc_get_use_list ();
535 if (gfc_match (" , ") == MATCH_YES
)
537 if ((m
= gfc_match (" %n ::", module_nature
)) == MATCH_YES
)
539 if (!gfc_notify_std (GFC_STD_F2003
, "module "
540 "nature in USE statement at %C"))
543 if (strcmp (module_nature
, "intrinsic") == 0)
544 use_list
->intrinsic
= true;
547 if (strcmp (module_nature
, "non_intrinsic") == 0)
548 use_list
->non_intrinsic
= true;
551 gfc_error ("Module nature in USE statement at %C shall "
552 "be either INTRINSIC or NON_INTRINSIC");
559 /* Help output a better error message than "Unclassifiable
561 gfc_match (" %n", module_nature
);
562 if (strcmp (module_nature
, "intrinsic") == 0
563 || strcmp (module_nature
, "non_intrinsic") == 0)
564 gfc_error ("\"::\" was expected after module nature at %C "
565 "but was not found");
572 m
= gfc_match (" ::");
573 if (m
== MATCH_YES
&&
574 !gfc_notify_std(GFC_STD_F2003
, "\"USE :: module\" at %C"))
579 m
= gfc_match ("% ");
588 use_list
->where
= gfc_current_locus
;
590 m
= gfc_match_name (name
);
597 use_list
->module_name
= gfc_get_string ("%s", name
);
599 if (gfc_match_eos () == MATCH_YES
)
602 if (gfc_match_char (',') != MATCH_YES
)
605 if (gfc_match (" only :") == MATCH_YES
)
606 use_list
->only_flag
= true;
608 if (gfc_match_eos () == MATCH_YES
)
613 /* Get a new rename struct and add it to the rename list. */
614 new_use
= gfc_get_use_rename ();
615 new_use
->where
= gfc_current_locus
;
618 if (use_list
->rename
== NULL
)
619 use_list
->rename
= new_use
;
621 tail
->next
= new_use
;
624 /* See what kind of interface we're dealing with. Assume it is
626 new_use
->op
= INTRINSIC_NONE
;
627 if (gfc_match_generic_spec (&type
, name
, &op
) == MATCH_ERROR
)
632 case INTERFACE_NAMELESS
:
633 gfc_error ("Missing generic specification in USE statement at %C");
636 case INTERFACE_USER_OP
:
637 case INTERFACE_GENERIC
:
638 m
= gfc_match (" =>");
640 if (type
== INTERFACE_USER_OP
&& m
== MATCH_YES
641 && (!gfc_notify_std(GFC_STD_F2003
, "Renaming "
642 "operators in USE statements at %C")))
645 if (type
== INTERFACE_USER_OP
)
646 new_use
->op
= INTRINSIC_USER
;
648 if (use_list
->only_flag
)
651 strcpy (new_use
->use_name
, name
);
654 strcpy (new_use
->local_name
, name
);
655 m
= gfc_match_generic_spec (&type2
, new_use
->use_name
, &op
);
660 if (m
== MATCH_ERROR
)
668 strcpy (new_use
->local_name
, name
);
670 m
= gfc_match_generic_spec (&type2
, new_use
->use_name
, &op
);
675 if (m
== MATCH_ERROR
)
679 if (strcmp (new_use
->use_name
, use_list
->module_name
) == 0
680 || strcmp (new_use
->local_name
, use_list
->module_name
) == 0)
682 gfc_error ("The name %qs at %C has already been used as "
683 "an external module name.", use_list
->module_name
);
688 case INTERFACE_INTRINSIC_OP
:
696 if (gfc_match_eos () == MATCH_YES
)
698 if (gfc_match_char (',') != MATCH_YES
)
705 gfc_use_list
*last
= module_list
;
708 last
->next
= use_list
;
711 module_list
= use_list
;
716 gfc_syntax_error (ST_USE
);
719 free_rename (use_list
->rename
);
725 /* Match a SUBMODULE statement.
727 According to F2008:11.2.3.2, "The submodule identifier is the
728 ordered pair whose first element is the ancestor module name and
729 whose second element is the submodule name. 'Submodule_name' is
730 used for the submodule filename and uses '@' as a separator, whilst
731 the name of the symbol for the module uses '.' as a a separator.
732 The reasons for these choices are:
733 (i) To follow another leading brand in the submodule filenames;
734 (ii) Since '.' is not particularly visible in the filenames; and
735 (iii) The linker does not permit '@' in mnemonics. */
738 gfc_match_submodule (void)
741 char name
[GFC_MAX_SYMBOL_LEN
+ 1];
742 gfc_use_list
*use_list
;
743 bool seen_colon
= false;
745 if (!gfc_notify_std (GFC_STD_F2008
, "SUBMODULE declaration at %C"))
748 gfc_new_block
= NULL
;
749 gcc_assert (module_list
== NULL
);
751 if (gfc_match_char ('(') != MATCH_YES
)
756 m
= gfc_match (" %n", name
);
760 use_list
= gfc_get_use_list ();
761 use_list
->where
= gfc_current_locus
;
765 gfc_use_list
*last
= module_list
;
768 last
->next
= use_list
;
769 use_list
->module_name
770 = gfc_get_string ("%s.%s", module_list
->module_name
, name
);
771 use_list
->submodule_name
772 = gfc_get_string ("%s@%s", module_list
->module_name
, name
);
776 module_list
= use_list
;
777 use_list
->module_name
= gfc_get_string ("%s", name
);
778 use_list
->submodule_name
= use_list
->module_name
;
781 if (gfc_match_char (')') == MATCH_YES
)
784 if (gfc_match_char (':') != MATCH_YES
791 m
= gfc_match (" %s%t", &gfc_new_block
);
795 submodule_name
= gfc_get_string ("%s@%s", module_list
->module_name
,
796 gfc_new_block
->name
);
798 gfc_new_block
->name
= gfc_get_string ("%s.%s",
799 module_list
->module_name
,
800 gfc_new_block
->name
);
802 if (!gfc_add_flavor (&gfc_new_block
->attr
, FL_MODULE
,
803 gfc_new_block
->name
, NULL
))
806 /* Just retain the ultimate .(s)mod file for reading, since it
807 contains all the information in its ancestors. */
808 use_list
= module_list
;
809 for (; module_list
->next
; use_list
= module_list
)
811 module_list
= use_list
->next
;
818 gfc_error ("Syntax error in SUBMODULE statement at %C");
823 /* Given a name and a number, inst, return the inst name
824 under which to load this symbol. Returns NULL if this
825 symbol shouldn't be loaded. If inst is zero, returns
826 the number of instances of this name. If interface is
827 true, a user-defined operator is sought, otherwise only
828 non-operators are sought. */
831 find_use_name_n (const char *name
, int *inst
, bool interface
)
834 const char *low_name
= NULL
;
837 /* For derived types. */
838 if (name
[0] != (char) TOLOWER ((unsigned char) name
[0]))
839 low_name
= gfc_dt_lower_string (name
);
842 for (u
= gfc_rename_list
; u
; u
= u
->next
)
844 if ((!low_name
&& strcmp (u
->use_name
, name
) != 0)
845 || (low_name
&& strcmp (u
->use_name
, low_name
) != 0)
846 || (u
->op
== INTRINSIC_USER
&& !interface
)
847 || (u
->op
!= INTRINSIC_USER
&& interface
))
860 return only_flag
? NULL
: name
;
866 if (u
->local_name
[0] == '\0')
868 return gfc_dt_upper_string (u
->local_name
);
871 return (u
->local_name
[0] != '\0') ? u
->local_name
: name
;
875 /* Given a name, return the name under which to load this symbol.
876 Returns NULL if this symbol shouldn't be loaded. */
879 find_use_name (const char *name
, bool interface
)
882 return find_use_name_n (name
, &i
, interface
);
886 /* Given a real name, return the number of use names associated with it. */
889 number_use_names (const char *name
, bool interface
)
892 find_use_name_n (name
, &i
, interface
);
897 /* Try to find the operator in the current list. */
899 static gfc_use_rename
*
900 find_use_operator (gfc_intrinsic_op op
)
904 for (u
= gfc_rename_list
; u
; u
= u
->next
)
912 /*****************************************************************/
914 /* The next couple of subroutines maintain a tree used to avoid a
915 brute-force search for a combination of true name and module name.
916 While symtree names, the name that a particular symbol is known by
917 can changed with USE statements, we still have to keep track of the
918 true names to generate the correct reference, and also avoid
919 loading the same real symbol twice in a program unit.
921 When we start reading, the true name tree is built and maintained
922 as symbols are read. The tree is searched as we load new symbols
923 to see if it already exists someplace in the namespace. */
925 typedef struct true_name
927 BBT_HEADER (true_name
);
933 static true_name
*true_name_root
;
936 /* Compare two true_name structures. */
939 compare_true_names (void *_t1
, void *_t2
)
944 t1
= (true_name
*) _t1
;
945 t2
= (true_name
*) _t2
;
947 c
= ((t1
->sym
->module
> t2
->sym
->module
)
948 - (t1
->sym
->module
< t2
->sym
->module
));
952 return strcmp (t1
->name
, t2
->name
);
956 /* Given a true name, search the true name tree to see if it exists
957 within the main namespace. */
960 find_true_name (const char *name
, const char *module
)
966 t
.name
= gfc_get_string ("%s", name
);
968 sym
.module
= gfc_get_string ("%s", module
);
976 c
= compare_true_names ((void *) (&t
), (void *) p
);
980 p
= (c
< 0) ? p
->left
: p
->right
;
987 /* Given a gfc_symbol pointer that is not in the true name tree, add it. */
990 add_true_name (gfc_symbol
*sym
)
994 t
= XCNEW (true_name
);
996 if (gfc_fl_struct (sym
->attr
.flavor
))
997 t
->name
= gfc_dt_upper_string (sym
->name
);
1001 gfc_insert_bbt (&true_name_root
, t
, compare_true_names
);
1005 /* Recursive function to build the initial true name tree by
1006 recursively traversing the current namespace. */
1009 build_tnt (gfc_symtree
*st
)
1015 build_tnt (st
->left
);
1016 build_tnt (st
->right
);
1018 if (gfc_fl_struct (st
->n
.sym
->attr
.flavor
))
1019 name
= gfc_dt_upper_string (st
->n
.sym
->name
);
1021 name
= st
->n
.sym
->name
;
1023 if (find_true_name (name
, st
->n
.sym
->module
) != NULL
)
1026 add_true_name (st
->n
.sym
);
1030 /* Initialize the true name tree with the current namespace. */
1033 init_true_name_tree (void)
1035 true_name_root
= NULL
;
1036 build_tnt (gfc_current_ns
->sym_root
);
1040 /* Recursively free a true name tree node. */
1043 free_true_name (true_name
*t
)
1047 free_true_name (t
->left
);
1048 free_true_name (t
->right
);
1054 /*****************************************************************/
1056 /* Module reading and writing. */
1058 /* The following are versions similar to the ones in scanner.c, but
1059 for dealing with compressed module files. */
1062 gzopen_included_file_1 (const char *name
, gfc_directorylist
*list
,
1063 bool module
, bool system
)
1066 gfc_directorylist
*p
;
1069 for (p
= list
; p
; p
= p
->next
)
1071 if (module
&& !p
->use_for_modules
)
1074 fullname
= (char *) alloca(strlen (p
->path
) + strlen (name
) + 1);
1075 strcpy (fullname
, p
->path
);
1076 strcat (fullname
, name
);
1078 f
= gzopen (fullname
, "r");
1081 if (gfc_cpp_makedep ())
1082 gfc_cpp_add_dep (fullname
, system
);
1092 gzopen_included_file (const char *name
, bool include_cwd
, bool module
)
1096 if (IS_ABSOLUTE_PATH (name
) || include_cwd
)
1098 f
= gzopen (name
, "r");
1099 if (f
&& gfc_cpp_makedep ())
1100 gfc_cpp_add_dep (name
, false);
1104 f
= gzopen_included_file_1 (name
, include_dirs
, module
, false);
1110 gzopen_intrinsic_module (const char* name
)
1114 if (IS_ABSOLUTE_PATH (name
))
1116 f
= gzopen (name
, "r");
1117 if (f
&& gfc_cpp_makedep ())
1118 gfc_cpp_add_dep (name
, true);
1122 f
= gzopen_included_file_1 (name
, intrinsic_modules_dirs
, true, true);
1130 ATOM_NAME
, ATOM_LPAREN
, ATOM_RPAREN
, ATOM_INTEGER
, ATOM_STRING
1133 static atom_type last_atom
;
1136 /* The name buffer must be at least as long as a symbol name. Right
1137 now it's not clear how we're going to store numeric constants--
1138 probably as a hexadecimal string, since this will allow the exact
1139 number to be preserved (this can't be done by a decimal
1140 representation). Worry about that later. TODO! */
1142 #define MAX_ATOM_SIZE 100
1144 static int atom_int
;
1145 static char *atom_string
, atom_name
[MAX_ATOM_SIZE
];
1148 /* Report problems with a module. Error reporting is not very
1149 elaborate, since this sorts of errors shouldn't really happen.
1150 This subroutine never returns. */
1152 static void bad_module (const char *) ATTRIBUTE_NORETURN
;
1155 bad_module (const char *msgid
)
1157 XDELETEVEC (module_content
);
1158 module_content
= NULL
;
1163 gfc_fatal_error ("Reading module %qs at line %d column %d: %s",
1164 module_name
, module_line
, module_column
, msgid
);
1167 gfc_fatal_error ("Writing module %qs at line %d column %d: %s",
1168 module_name
, module_line
, module_column
, msgid
);
1171 gfc_fatal_error ("Module %qs at line %d column %d: %s",
1172 module_name
, module_line
, module_column
, msgid
);
1178 /* Set the module's input pointer. */
1181 set_module_locus (module_locus
*m
)
1183 module_column
= m
->column
;
1184 module_line
= m
->line
;
1185 module_pos
= m
->pos
;
1189 /* Get the module's input pointer so that we can restore it later. */
1192 get_module_locus (module_locus
*m
)
1194 m
->column
= module_column
;
1195 m
->line
= module_line
;
1196 m
->pos
= module_pos
;
1200 /* Get the next character in the module, updating our reckoning of
1206 const char c
= module_content
[module_pos
++];
1208 bad_module ("Unexpected EOF");
1210 prev_module_line
= module_line
;
1211 prev_module_column
= module_column
;
1223 /* Unget a character while remembering the line and column. Works for
1224 a single character only. */
1227 module_unget_char (void)
1229 module_line
= prev_module_line
;
1230 module_column
= prev_module_column
;
1234 /* Parse a string constant. The delimiter is guaranteed to be a
1244 atom_string
= XNEWVEC (char, cursz
);
1252 int c2
= module_char ();
1255 module_unget_char ();
1263 atom_string
= XRESIZEVEC (char, atom_string
, cursz
);
1265 atom_string
[len
] = c
;
1269 atom_string
= XRESIZEVEC (char, atom_string
, len
+ 1);
1270 atom_string
[len
] = '\0'; /* C-style string for debug purposes. */
1274 /* Parse a small integer. */
1277 parse_integer (int c
)
1286 module_unget_char ();
1290 atom_int
= 10 * atom_int
+ c
- '0';
1291 if (atom_int
> 99999999)
1292 bad_module ("Integer overflow");
1314 if (!ISALNUM (c
) && c
!= '_' && c
!= '-')
1316 module_unget_char ();
1321 if (++len
> GFC_MAX_SYMBOL_LEN
)
1322 bad_module ("Name too long");
1330 /* Read the next atom in the module's input stream. */
1341 while (c
== ' ' || c
== '\r' || c
== '\n');
1366 return ATOM_INTEGER
;
1424 bad_module ("Bad name");
1431 /* Peek at the next atom on the input. */
1442 while (c
== ' ' || c
== '\r' || c
== '\n');
1447 module_unget_char ();
1451 module_unget_char ();
1455 module_unget_char ();
1468 module_unget_char ();
1469 return ATOM_INTEGER
;
1523 module_unget_char ();
1527 bad_module ("Bad name");
1532 /* Read the next atom from the input, requiring that it be a
1536 require_atom (atom_type type
)
1542 column
= module_column
;
1551 p
= _("Expected name");
1554 p
= _("Expected left parenthesis");
1557 p
= _("Expected right parenthesis");
1560 p
= _("Expected integer");
1563 p
= _("Expected string");
1566 gfc_internal_error ("require_atom(): bad atom type required");
1569 module_column
= column
;
1576 /* Given a pointer to an mstring array, require that the current input
1577 be one of the strings in the array. We return the enum value. */
1580 find_enum (const mstring
*m
)
1584 i
= gfc_string2code (m
, atom_name
);
1588 bad_module ("find_enum(): Enum not found");
1594 /* Read a string. The caller is responsible for freeing. */
1600 require_atom (ATOM_STRING
);
1607 /**************** Module output subroutines ***************************/
1609 /* Output a character to a module file. */
1612 write_char (char out
)
1614 if (gzputc (module_fp
, out
) == EOF
)
1615 gfc_fatal_error ("Error writing modules file: %s", xstrerror (errno
));
1627 /* Write an atom to a module. The line wrapping isn't perfect, but it
1628 should work most of the time. This isn't that big of a deal, since
1629 the file really isn't meant to be read by people anyway. */
1632 write_atom (atom_type atom
, const void *v
)
1636 /* Workaround -Wmaybe-uninitialized false positive during
1637 profiledbootstrap by initializing them. */
1645 p
= (const char *) v
;
1657 i
= *((const int *) v
);
1659 gfc_internal_error ("write_atom(): Writing negative integer");
1661 sprintf (buffer
, "%d", i
);
1666 gfc_internal_error ("write_atom(): Trying to write dab atom");
1670 if(p
== NULL
|| *p
== '\0')
1675 if (atom
!= ATOM_RPAREN
)
1677 if (module_column
+ len
> 72)
1682 if (last_atom
!= ATOM_LPAREN
&& module_column
!= 1)
1687 if (atom
== ATOM_STRING
)
1690 while (p
!= NULL
&& *p
)
1692 if (atom
== ATOM_STRING
&& *p
== '\'')
1697 if (atom
== ATOM_STRING
)
1705 /***************** Mid-level I/O subroutines *****************/
1707 /* These subroutines let their caller read or write atoms without
1708 caring about which of the two is actually happening. This lets a
1709 subroutine concentrate on the actual format of the data being
1712 static void mio_expr (gfc_expr
**);
1713 pointer_info
*mio_symbol_ref (gfc_symbol
**);
1714 pointer_info
*mio_interface_rest (gfc_interface
**);
1715 static void mio_symtree_ref (gfc_symtree
**);
1717 /* Read or write an enumerated value. On writing, we return the input
1718 value for the convenience of callers. We avoid using an integer
1719 pointer because enums are sometimes inside bitfields. */
1722 mio_name (int t
, const mstring
*m
)
1724 if (iomode
== IO_OUTPUT
)
1725 write_atom (ATOM_NAME
, gfc_code2string (m
, t
));
1728 require_atom (ATOM_NAME
);
1735 /* Specialization of mio_name. */
1737 #define DECL_MIO_NAME(TYPE) \
1738 static inline TYPE \
1739 MIO_NAME(TYPE) (TYPE t, const mstring *m) \
1741 return (TYPE) mio_name ((int) t, m); \
1743 #define MIO_NAME(TYPE) mio_name_##TYPE
1748 if (iomode
== IO_OUTPUT
)
1749 write_atom (ATOM_LPAREN
, NULL
);
1751 require_atom (ATOM_LPAREN
);
1758 if (iomode
== IO_OUTPUT
)
1759 write_atom (ATOM_RPAREN
, NULL
);
1761 require_atom (ATOM_RPAREN
);
1766 mio_integer (int *ip
)
1768 if (iomode
== IO_OUTPUT
)
1769 write_atom (ATOM_INTEGER
, ip
);
1772 require_atom (ATOM_INTEGER
);
1778 /* Read or write a gfc_intrinsic_op value. */
1781 mio_intrinsic_op (gfc_intrinsic_op
* op
)
1783 /* FIXME: Would be nicer to do this via the operators symbolic name. */
1784 if (iomode
== IO_OUTPUT
)
1786 int converted
= (int) *op
;
1787 write_atom (ATOM_INTEGER
, &converted
);
1791 require_atom (ATOM_INTEGER
);
1792 *op
= (gfc_intrinsic_op
) atom_int
;
1797 /* Read or write a character pointer that points to a string on the heap. */
1800 mio_allocated_string (const char *s
)
1802 if (iomode
== IO_OUTPUT
)
1804 write_atom (ATOM_STRING
, s
);
1809 require_atom (ATOM_STRING
);
1815 /* Functions for quoting and unquoting strings. */
1818 quote_string (const gfc_char_t
*s
, const size_t slength
)
1820 const gfc_char_t
*p
;
1824 /* Calculate the length we'll need: a backslash takes two ("\\"),
1825 non-printable characters take 10 ("\Uxxxxxxxx") and others take 1. */
1826 for (p
= s
, i
= 0; i
< slength
; p
++, i
++)
1830 else if (!gfc_wide_is_printable (*p
))
1836 q
= res
= XCNEWVEC (char, len
+ 1);
1837 for (p
= s
, i
= 0; i
< slength
; p
++, i
++)
1840 *q
++ = '\\', *q
++ = '\\';
1841 else if (!gfc_wide_is_printable (*p
))
1843 sprintf (q
, "\\U%08" HOST_WIDE_INT_PRINT
"x",
1844 (unsigned HOST_WIDE_INT
) *p
);
1848 *q
++ = (unsigned char) *p
;
1856 unquote_string (const char *s
)
1862 for (p
= s
, len
= 0; *p
; p
++, len
++)
1869 else if (p
[1] == 'U')
1870 p
+= 9; /* That is a "\U????????". */
1872 gfc_internal_error ("unquote_string(): got bad string");
1875 res
= gfc_get_wide_string (len
+ 1);
1876 for (i
= 0, p
= s
; i
< len
; i
++, p
++)
1881 res
[i
] = (unsigned char) *p
;
1882 else if (p
[1] == '\\')
1884 res
[i
] = (unsigned char) '\\';
1889 /* We read the 8-digits hexadecimal constant that follows. */
1894 gcc_assert (p
[1] == 'U');
1895 for (j
= 0; j
< 8; j
++)
1898 gcc_assert (sscanf (&p
[j
+2], "%01x", &n
) == 1);
1912 /* Read or write a character pointer that points to a wide string on the
1913 heap, performing quoting/unquoting of nonprintable characters using the
1914 form \U???????? (where each ? is a hexadecimal digit).
1915 Length is the length of the string, only known and used in output mode. */
1917 static const gfc_char_t
*
1918 mio_allocated_wide_string (const gfc_char_t
*s
, const size_t length
)
1920 if (iomode
== IO_OUTPUT
)
1922 char *quoted
= quote_string (s
, length
);
1923 write_atom (ATOM_STRING
, quoted
);
1929 gfc_char_t
*unquoted
;
1931 require_atom (ATOM_STRING
);
1932 unquoted
= unquote_string (atom_string
);
1939 /* Read or write a string that is in static memory. */
1942 mio_pool_string (const char **stringp
)
1944 /* TODO: one could write the string only once, and refer to it via a
1947 /* As a special case we have to deal with a NULL string. This
1948 happens for the 'module' member of 'gfc_symbol's that are not in a
1949 module. We read / write these as the empty string. */
1950 if (iomode
== IO_OUTPUT
)
1952 const char *p
= *stringp
== NULL
? "" : *stringp
;
1953 write_atom (ATOM_STRING
, p
);
1957 require_atom (ATOM_STRING
);
1958 *stringp
= (atom_string
[0] == '\0'
1959 ? NULL
: gfc_get_string ("%s", atom_string
));
1965 /* Read or write a string that is inside of some already-allocated
1969 mio_internal_string (char *string
)
1971 if (iomode
== IO_OUTPUT
)
1972 write_atom (ATOM_STRING
, string
);
1975 require_atom (ATOM_STRING
);
1976 strcpy (string
, atom_string
);
1983 { AB_ALLOCATABLE
, AB_DIMENSION
, AB_EXTERNAL
, AB_INTRINSIC
, AB_OPTIONAL
,
1984 AB_POINTER
, AB_TARGET
, AB_DUMMY
, AB_RESULT
, AB_DATA
,
1985 AB_IN_NAMELIST
, AB_IN_COMMON
, AB_FUNCTION
, AB_SUBROUTINE
, AB_SEQUENCE
,
1986 AB_ELEMENTAL
, AB_PURE
, AB_RECURSIVE
, AB_GENERIC
, AB_ALWAYS_EXPLICIT
,
1987 AB_CRAY_POINTER
, AB_CRAY_POINTEE
, AB_THREADPRIVATE
,
1988 AB_ALLOC_COMP
, AB_POINTER_COMP
, AB_PROC_POINTER_COMP
, AB_PRIVATE_COMP
,
1989 AB_VALUE
, AB_VOLATILE
, AB_PROTECTED
, AB_LOCK_COMP
, AB_EVENT_COMP
,
1990 AB_IS_BIND_C
, AB_IS_C_INTEROP
, AB_IS_ISO_C
, AB_ABSTRACT
, AB_ZERO_COMP
,
1991 AB_IS_CLASS
, AB_PROCEDURE
, AB_PROC_POINTER
, AB_ASYNCHRONOUS
, AB_CODIMENSION
,
1992 AB_COARRAY_COMP
, AB_VTYPE
, AB_VTAB
, AB_CONTIGUOUS
, AB_CLASS_POINTER
,
1993 AB_IMPLICIT_PURE
, AB_ARTIFICIAL
, AB_UNLIMITED_POLY
, AB_OMP_DECLARE_TARGET
,
1994 AB_ARRAY_OUTER_DEPENDENCY
, AB_MODULE_PROCEDURE
, AB_OACC_DECLARE_CREATE
,
1995 AB_OACC_DECLARE_COPYIN
, AB_OACC_DECLARE_DEVICEPTR
,
1996 AB_OACC_DECLARE_DEVICE_RESIDENT
, AB_OACC_DECLARE_LINK
,
1997 AB_OMP_DECLARE_TARGET_LINK
2000 static const mstring attr_bits
[] =
2002 minit ("ALLOCATABLE", AB_ALLOCATABLE
),
2003 minit ("ARTIFICIAL", AB_ARTIFICIAL
),
2004 minit ("ASYNCHRONOUS", AB_ASYNCHRONOUS
),
2005 minit ("DIMENSION", AB_DIMENSION
),
2006 minit ("CODIMENSION", AB_CODIMENSION
),
2007 minit ("CONTIGUOUS", AB_CONTIGUOUS
),
2008 minit ("EXTERNAL", AB_EXTERNAL
),
2009 minit ("INTRINSIC", AB_INTRINSIC
),
2010 minit ("OPTIONAL", AB_OPTIONAL
),
2011 minit ("POINTER", AB_POINTER
),
2012 minit ("VOLATILE", AB_VOLATILE
),
2013 minit ("TARGET", AB_TARGET
),
2014 minit ("THREADPRIVATE", AB_THREADPRIVATE
),
2015 minit ("DUMMY", AB_DUMMY
),
2016 minit ("RESULT", AB_RESULT
),
2017 minit ("DATA", AB_DATA
),
2018 minit ("IN_NAMELIST", AB_IN_NAMELIST
),
2019 minit ("IN_COMMON", AB_IN_COMMON
),
2020 minit ("FUNCTION", AB_FUNCTION
),
2021 minit ("SUBROUTINE", AB_SUBROUTINE
),
2022 minit ("SEQUENCE", AB_SEQUENCE
),
2023 minit ("ELEMENTAL", AB_ELEMENTAL
),
2024 minit ("PURE", AB_PURE
),
2025 minit ("RECURSIVE", AB_RECURSIVE
),
2026 minit ("GENERIC", AB_GENERIC
),
2027 minit ("ALWAYS_EXPLICIT", AB_ALWAYS_EXPLICIT
),
2028 minit ("CRAY_POINTER", AB_CRAY_POINTER
),
2029 minit ("CRAY_POINTEE", AB_CRAY_POINTEE
),
2030 minit ("IS_BIND_C", AB_IS_BIND_C
),
2031 minit ("IS_C_INTEROP", AB_IS_C_INTEROP
),
2032 minit ("IS_ISO_C", AB_IS_ISO_C
),
2033 minit ("VALUE", AB_VALUE
),
2034 minit ("ALLOC_COMP", AB_ALLOC_COMP
),
2035 minit ("COARRAY_COMP", AB_COARRAY_COMP
),
2036 minit ("LOCK_COMP", AB_LOCK_COMP
),
2037 minit ("EVENT_COMP", AB_EVENT_COMP
),
2038 minit ("POINTER_COMP", AB_POINTER_COMP
),
2039 minit ("PROC_POINTER_COMP", AB_PROC_POINTER_COMP
),
2040 minit ("PRIVATE_COMP", AB_PRIVATE_COMP
),
2041 minit ("ZERO_COMP", AB_ZERO_COMP
),
2042 minit ("PROTECTED", AB_PROTECTED
),
2043 minit ("ABSTRACT", AB_ABSTRACT
),
2044 minit ("IS_CLASS", AB_IS_CLASS
),
2045 minit ("PROCEDURE", AB_PROCEDURE
),
2046 minit ("PROC_POINTER", AB_PROC_POINTER
),
2047 minit ("VTYPE", AB_VTYPE
),
2048 minit ("VTAB", AB_VTAB
),
2049 minit ("CLASS_POINTER", AB_CLASS_POINTER
),
2050 minit ("IMPLICIT_PURE", AB_IMPLICIT_PURE
),
2051 minit ("UNLIMITED_POLY", AB_UNLIMITED_POLY
),
2052 minit ("OMP_DECLARE_TARGET", AB_OMP_DECLARE_TARGET
),
2053 minit ("ARRAY_OUTER_DEPENDENCY", AB_ARRAY_OUTER_DEPENDENCY
),
2054 minit ("MODULE_PROCEDURE", AB_MODULE_PROCEDURE
),
2055 minit ("OACC_DECLARE_CREATE", AB_OACC_DECLARE_CREATE
),
2056 minit ("OACC_DECLARE_COPYIN", AB_OACC_DECLARE_COPYIN
),
2057 minit ("OACC_DECLARE_DEVICEPTR", AB_OACC_DECLARE_DEVICEPTR
),
2058 minit ("OACC_DECLARE_DEVICE_RESIDENT", AB_OACC_DECLARE_DEVICE_RESIDENT
),
2059 minit ("OACC_DECLARE_LINK", AB_OACC_DECLARE_LINK
),
2060 minit ("OMP_DECLARE_TARGET_LINK", AB_OMP_DECLARE_TARGET_LINK
),
2064 /* For binding attributes. */
2065 static const mstring binding_passing
[] =
2068 minit ("NOPASS", 1),
2071 static const mstring binding_overriding
[] =
2073 minit ("OVERRIDABLE", 0),
2074 minit ("NON_OVERRIDABLE", 1),
2075 minit ("DEFERRED", 2),
2078 static const mstring binding_generic
[] =
2080 minit ("SPECIFIC", 0),
2081 minit ("GENERIC", 1),
2084 static const mstring binding_ppc
[] =
2086 minit ("NO_PPC", 0),
2091 /* Specialization of mio_name. */
2092 DECL_MIO_NAME (ab_attribute
)
2093 DECL_MIO_NAME (ar_type
)
2094 DECL_MIO_NAME (array_type
)
2096 DECL_MIO_NAME (expr_t
)
2097 DECL_MIO_NAME (gfc_access
)
2098 DECL_MIO_NAME (gfc_intrinsic_op
)
2099 DECL_MIO_NAME (ifsrc
)
2100 DECL_MIO_NAME (save_state
)
2101 DECL_MIO_NAME (procedure_type
)
2102 DECL_MIO_NAME (ref_type
)
2103 DECL_MIO_NAME (sym_flavor
)
2104 DECL_MIO_NAME (sym_intent
)
2105 #undef DECL_MIO_NAME
2107 /* Symbol attributes are stored in list with the first three elements
2108 being the enumerated fields, while the remaining elements (if any)
2109 indicate the individual attribute bits. The access field is not
2110 saved-- it controls what symbols are exported when a module is
2114 mio_symbol_attribute (symbol_attribute
*attr
)
2117 unsigned ext_attr
,extension_level
;
2121 attr
->flavor
= MIO_NAME (sym_flavor
) (attr
->flavor
, flavors
);
2122 attr
->intent
= MIO_NAME (sym_intent
) (attr
->intent
, intents
);
2123 attr
->proc
= MIO_NAME (procedure_type
) (attr
->proc
, procedures
);
2124 attr
->if_source
= MIO_NAME (ifsrc
) (attr
->if_source
, ifsrc_types
);
2125 attr
->save
= MIO_NAME (save_state
) (attr
->save
, save_status
);
2127 ext_attr
= attr
->ext_attr
;
2128 mio_integer ((int *) &ext_attr
);
2129 attr
->ext_attr
= ext_attr
;
2131 extension_level
= attr
->extension
;
2132 mio_integer ((int *) &extension_level
);
2133 attr
->extension
= extension_level
;
2135 if (iomode
== IO_OUTPUT
)
2137 if (attr
->allocatable
)
2138 MIO_NAME (ab_attribute
) (AB_ALLOCATABLE
, attr_bits
);
2139 if (attr
->artificial
)
2140 MIO_NAME (ab_attribute
) (AB_ARTIFICIAL
, attr_bits
);
2141 if (attr
->asynchronous
)
2142 MIO_NAME (ab_attribute
) (AB_ASYNCHRONOUS
, attr_bits
);
2143 if (attr
->dimension
)
2144 MIO_NAME (ab_attribute
) (AB_DIMENSION
, attr_bits
);
2145 if (attr
->codimension
)
2146 MIO_NAME (ab_attribute
) (AB_CODIMENSION
, attr_bits
);
2147 if (attr
->contiguous
)
2148 MIO_NAME (ab_attribute
) (AB_CONTIGUOUS
, attr_bits
);
2150 MIO_NAME (ab_attribute
) (AB_EXTERNAL
, attr_bits
);
2151 if (attr
->intrinsic
)
2152 MIO_NAME (ab_attribute
) (AB_INTRINSIC
, attr_bits
);
2154 MIO_NAME (ab_attribute
) (AB_OPTIONAL
, attr_bits
);
2156 MIO_NAME (ab_attribute
) (AB_POINTER
, attr_bits
);
2157 if (attr
->class_pointer
)
2158 MIO_NAME (ab_attribute
) (AB_CLASS_POINTER
, attr_bits
);
2159 if (attr
->is_protected
)
2160 MIO_NAME (ab_attribute
) (AB_PROTECTED
, attr_bits
);
2162 MIO_NAME (ab_attribute
) (AB_VALUE
, attr_bits
);
2163 if (attr
->volatile_
)
2164 MIO_NAME (ab_attribute
) (AB_VOLATILE
, attr_bits
);
2166 MIO_NAME (ab_attribute
) (AB_TARGET
, attr_bits
);
2167 if (attr
->threadprivate
)
2168 MIO_NAME (ab_attribute
) (AB_THREADPRIVATE
, attr_bits
);
2170 MIO_NAME (ab_attribute
) (AB_DUMMY
, attr_bits
);
2172 MIO_NAME (ab_attribute
) (AB_RESULT
, attr_bits
);
2173 /* We deliberately don't preserve the "entry" flag. */
2176 MIO_NAME (ab_attribute
) (AB_DATA
, attr_bits
);
2177 if (attr
->in_namelist
)
2178 MIO_NAME (ab_attribute
) (AB_IN_NAMELIST
, attr_bits
);
2179 if (attr
->in_common
)
2180 MIO_NAME (ab_attribute
) (AB_IN_COMMON
, attr_bits
);
2183 MIO_NAME (ab_attribute
) (AB_FUNCTION
, attr_bits
);
2184 if (attr
->subroutine
)
2185 MIO_NAME (ab_attribute
) (AB_SUBROUTINE
, attr_bits
);
2187 MIO_NAME (ab_attribute
) (AB_GENERIC
, attr_bits
);
2189 MIO_NAME (ab_attribute
) (AB_ABSTRACT
, attr_bits
);
2192 MIO_NAME (ab_attribute
) (AB_SEQUENCE
, attr_bits
);
2193 if (attr
->elemental
)
2194 MIO_NAME (ab_attribute
) (AB_ELEMENTAL
, attr_bits
);
2196 MIO_NAME (ab_attribute
) (AB_PURE
, attr_bits
);
2197 if (attr
->implicit_pure
)
2198 MIO_NAME (ab_attribute
) (AB_IMPLICIT_PURE
, attr_bits
);
2199 if (attr
->unlimited_polymorphic
)
2200 MIO_NAME (ab_attribute
) (AB_UNLIMITED_POLY
, attr_bits
);
2201 if (attr
->recursive
)
2202 MIO_NAME (ab_attribute
) (AB_RECURSIVE
, attr_bits
);
2203 if (attr
->always_explicit
)
2204 MIO_NAME (ab_attribute
) (AB_ALWAYS_EXPLICIT
, attr_bits
);
2205 if (attr
->cray_pointer
)
2206 MIO_NAME (ab_attribute
) (AB_CRAY_POINTER
, attr_bits
);
2207 if (attr
->cray_pointee
)
2208 MIO_NAME (ab_attribute
) (AB_CRAY_POINTEE
, attr_bits
);
2209 if (attr
->is_bind_c
)
2210 MIO_NAME(ab_attribute
) (AB_IS_BIND_C
, attr_bits
);
2211 if (attr
->is_c_interop
)
2212 MIO_NAME(ab_attribute
) (AB_IS_C_INTEROP
, attr_bits
);
2214 MIO_NAME(ab_attribute
) (AB_IS_ISO_C
, attr_bits
);
2215 if (attr
->alloc_comp
)
2216 MIO_NAME (ab_attribute
) (AB_ALLOC_COMP
, attr_bits
);
2217 if (attr
->pointer_comp
)
2218 MIO_NAME (ab_attribute
) (AB_POINTER_COMP
, attr_bits
);
2219 if (attr
->proc_pointer_comp
)
2220 MIO_NAME (ab_attribute
) (AB_PROC_POINTER_COMP
, attr_bits
);
2221 if (attr
->private_comp
)
2222 MIO_NAME (ab_attribute
) (AB_PRIVATE_COMP
, attr_bits
);
2223 if (attr
->coarray_comp
)
2224 MIO_NAME (ab_attribute
) (AB_COARRAY_COMP
, attr_bits
);
2225 if (attr
->lock_comp
)
2226 MIO_NAME (ab_attribute
) (AB_LOCK_COMP
, attr_bits
);
2227 if (attr
->event_comp
)
2228 MIO_NAME (ab_attribute
) (AB_EVENT_COMP
, attr_bits
);
2229 if (attr
->zero_comp
)
2230 MIO_NAME (ab_attribute
) (AB_ZERO_COMP
, attr_bits
);
2232 MIO_NAME (ab_attribute
) (AB_IS_CLASS
, attr_bits
);
2233 if (attr
->procedure
)
2234 MIO_NAME (ab_attribute
) (AB_PROCEDURE
, attr_bits
);
2235 if (attr
->proc_pointer
)
2236 MIO_NAME (ab_attribute
) (AB_PROC_POINTER
, attr_bits
);
2238 MIO_NAME (ab_attribute
) (AB_VTYPE
, attr_bits
);
2240 MIO_NAME (ab_attribute
) (AB_VTAB
, attr_bits
);
2241 if (attr
->omp_declare_target
)
2242 MIO_NAME (ab_attribute
) (AB_OMP_DECLARE_TARGET
, attr_bits
);
2243 if (attr
->array_outer_dependency
)
2244 MIO_NAME (ab_attribute
) (AB_ARRAY_OUTER_DEPENDENCY
, attr_bits
);
2245 if (attr
->module_procedure
)
2247 MIO_NAME (ab_attribute
) (AB_MODULE_PROCEDURE
, attr_bits
);
2248 no_module_procedures
= false;
2250 if (attr
->oacc_declare_create
)
2251 MIO_NAME (ab_attribute
) (AB_OACC_DECLARE_CREATE
, attr_bits
);
2252 if (attr
->oacc_declare_copyin
)
2253 MIO_NAME (ab_attribute
) (AB_OACC_DECLARE_COPYIN
, attr_bits
);
2254 if (attr
->oacc_declare_deviceptr
)
2255 MIO_NAME (ab_attribute
) (AB_OACC_DECLARE_DEVICEPTR
, attr_bits
);
2256 if (attr
->oacc_declare_device_resident
)
2257 MIO_NAME (ab_attribute
) (AB_OACC_DECLARE_DEVICE_RESIDENT
, attr_bits
);
2258 if (attr
->oacc_declare_link
)
2259 MIO_NAME (ab_attribute
) (AB_OACC_DECLARE_LINK
, attr_bits
);
2260 if (attr
->omp_declare_target_link
)
2261 MIO_NAME (ab_attribute
) (AB_OMP_DECLARE_TARGET_LINK
, attr_bits
);
2271 if (t
== ATOM_RPAREN
)
2274 bad_module ("Expected attribute bit name");
2276 switch ((ab_attribute
) find_enum (attr_bits
))
2278 case AB_ALLOCATABLE
:
2279 attr
->allocatable
= 1;
2282 attr
->artificial
= 1;
2284 case AB_ASYNCHRONOUS
:
2285 attr
->asynchronous
= 1;
2288 attr
->dimension
= 1;
2290 case AB_CODIMENSION
:
2291 attr
->codimension
= 1;
2294 attr
->contiguous
= 1;
2300 attr
->intrinsic
= 1;
2308 case AB_CLASS_POINTER
:
2309 attr
->class_pointer
= 1;
2312 attr
->is_protected
= 1;
2318 attr
->volatile_
= 1;
2323 case AB_THREADPRIVATE
:
2324 attr
->threadprivate
= 1;
2335 case AB_IN_NAMELIST
:
2336 attr
->in_namelist
= 1;
2339 attr
->in_common
= 1;
2345 attr
->subroutine
= 1;
2357 attr
->elemental
= 1;
2362 case AB_IMPLICIT_PURE
:
2363 attr
->implicit_pure
= 1;
2365 case AB_UNLIMITED_POLY
:
2366 attr
->unlimited_polymorphic
= 1;
2369 attr
->recursive
= 1;
2371 case AB_ALWAYS_EXPLICIT
:
2372 attr
->always_explicit
= 1;
2374 case AB_CRAY_POINTER
:
2375 attr
->cray_pointer
= 1;
2377 case AB_CRAY_POINTEE
:
2378 attr
->cray_pointee
= 1;
2381 attr
->is_bind_c
= 1;
2383 case AB_IS_C_INTEROP
:
2384 attr
->is_c_interop
= 1;
2390 attr
->alloc_comp
= 1;
2392 case AB_COARRAY_COMP
:
2393 attr
->coarray_comp
= 1;
2396 attr
->lock_comp
= 1;
2399 attr
->event_comp
= 1;
2401 case AB_POINTER_COMP
:
2402 attr
->pointer_comp
= 1;
2404 case AB_PROC_POINTER_COMP
:
2405 attr
->proc_pointer_comp
= 1;
2407 case AB_PRIVATE_COMP
:
2408 attr
->private_comp
= 1;
2411 attr
->zero_comp
= 1;
2417 attr
->procedure
= 1;
2419 case AB_PROC_POINTER
:
2420 attr
->proc_pointer
= 1;
2428 case AB_OMP_DECLARE_TARGET
:
2429 attr
->omp_declare_target
= 1;
2431 case AB_OMP_DECLARE_TARGET_LINK
:
2432 attr
->omp_declare_target_link
= 1;
2434 case AB_ARRAY_OUTER_DEPENDENCY
:
2435 attr
->array_outer_dependency
=1;
2437 case AB_MODULE_PROCEDURE
:
2438 attr
->module_procedure
=1;
2440 case AB_OACC_DECLARE_CREATE
:
2441 attr
->oacc_declare_create
= 1;
2443 case AB_OACC_DECLARE_COPYIN
:
2444 attr
->oacc_declare_copyin
= 1;
2446 case AB_OACC_DECLARE_DEVICEPTR
:
2447 attr
->oacc_declare_deviceptr
= 1;
2449 case AB_OACC_DECLARE_DEVICE_RESIDENT
:
2450 attr
->oacc_declare_device_resident
= 1;
2452 case AB_OACC_DECLARE_LINK
:
2453 attr
->oacc_declare_link
= 1;
2461 static const mstring bt_types
[] = {
2462 minit ("INTEGER", BT_INTEGER
),
2463 minit ("REAL", BT_REAL
),
2464 minit ("COMPLEX", BT_COMPLEX
),
2465 minit ("LOGICAL", BT_LOGICAL
),
2466 minit ("CHARACTER", BT_CHARACTER
),
2467 minit ("UNION", BT_UNION
),
2468 minit ("DERIVED", BT_DERIVED
),
2469 minit ("CLASS", BT_CLASS
),
2470 minit ("PROCEDURE", BT_PROCEDURE
),
2471 minit ("UNKNOWN", BT_UNKNOWN
),
2472 minit ("VOID", BT_VOID
),
2473 minit ("ASSUMED", BT_ASSUMED
),
2479 mio_charlen (gfc_charlen
**clp
)
2485 if (iomode
== IO_OUTPUT
)
2489 mio_expr (&cl
->length
);
2493 if (peek_atom () != ATOM_RPAREN
)
2495 cl
= gfc_new_charlen (gfc_current_ns
, NULL
);
2496 mio_expr (&cl
->length
);
2505 /* See if a name is a generated name. */
2508 check_unique_name (const char *name
)
2510 return *name
== '@';
2515 mio_typespec (gfc_typespec
*ts
)
2519 ts
->type
= MIO_NAME (bt
) (ts
->type
, bt_types
);
2521 if (!gfc_bt_struct (ts
->type
) && ts
->type
!= BT_CLASS
)
2522 mio_integer (&ts
->kind
);
2524 mio_symbol_ref (&ts
->u
.derived
);
2526 mio_symbol_ref (&ts
->interface
);
2528 /* Add info for C interop and is_iso_c. */
2529 mio_integer (&ts
->is_c_interop
);
2530 mio_integer (&ts
->is_iso_c
);
2532 /* If the typespec is for an identifier either from iso_c_binding, or
2533 a constant that was initialized to an identifier from it, use the
2534 f90_type. Otherwise, use the ts->type, since it shouldn't matter. */
2536 ts
->f90_type
= MIO_NAME (bt
) (ts
->f90_type
, bt_types
);
2538 ts
->f90_type
= MIO_NAME (bt
) (ts
->type
, bt_types
);
2540 if (ts
->type
!= BT_CHARACTER
)
2542 /* ts->u.cl is only valid for BT_CHARACTER. */
2547 mio_charlen (&ts
->u
.cl
);
2549 /* So as not to disturb the existing API, use an ATOM_NAME to
2550 transmit deferred characteristic for characters (F2003). */
2551 if (iomode
== IO_OUTPUT
)
2553 if (ts
->type
== BT_CHARACTER
&& ts
->deferred
)
2554 write_atom (ATOM_NAME
, "DEFERRED_CL");
2556 else if (peek_atom () != ATOM_RPAREN
)
2558 if (parse_atom () != ATOM_NAME
)
2559 bad_module ("Expected string");
2567 static const mstring array_spec_types
[] = {
2568 minit ("EXPLICIT", AS_EXPLICIT
),
2569 minit ("ASSUMED_RANK", AS_ASSUMED_RANK
),
2570 minit ("ASSUMED_SHAPE", AS_ASSUMED_SHAPE
),
2571 minit ("DEFERRED", AS_DEFERRED
),
2572 minit ("ASSUMED_SIZE", AS_ASSUMED_SIZE
),
2578 mio_array_spec (gfc_array_spec
**asp
)
2585 if (iomode
== IO_OUTPUT
)
2593 /* mio_integer expects nonnegative values. */
2594 rank
= as
->rank
> 0 ? as
->rank
: 0;
2595 mio_integer (&rank
);
2599 if (peek_atom () == ATOM_RPAREN
)
2605 *asp
= as
= gfc_get_array_spec ();
2606 mio_integer (&as
->rank
);
2609 mio_integer (&as
->corank
);
2610 as
->type
= MIO_NAME (array_type
) (as
->type
, array_spec_types
);
2612 if (iomode
== IO_INPUT
&& as
->type
== AS_ASSUMED_RANK
)
2614 if (iomode
== IO_INPUT
&& as
->corank
)
2615 as
->cotype
= (as
->type
== AS_DEFERRED
) ? AS_DEFERRED
: AS_EXPLICIT
;
2617 if (as
->rank
+ as
->corank
> 0)
2618 for (i
= 0; i
< as
->rank
+ as
->corank
; i
++)
2620 mio_expr (&as
->lower
[i
]);
2621 mio_expr (&as
->upper
[i
]);
2629 /* Given a pointer to an array reference structure (which lives in a
2630 gfc_ref structure), find the corresponding array specification
2631 structure. Storing the pointer in the ref structure doesn't quite
2632 work when loading from a module. Generating code for an array
2633 reference also needs more information than just the array spec. */
2635 static const mstring array_ref_types
[] = {
2636 minit ("FULL", AR_FULL
),
2637 minit ("ELEMENT", AR_ELEMENT
),
2638 minit ("SECTION", AR_SECTION
),
2644 mio_array_ref (gfc_array_ref
*ar
)
2649 ar
->type
= MIO_NAME (ar_type
) (ar
->type
, array_ref_types
);
2650 mio_integer (&ar
->dimen
);
2658 for (i
= 0; i
< ar
->dimen
; i
++)
2659 mio_expr (&ar
->start
[i
]);
2664 for (i
= 0; i
< ar
->dimen
; i
++)
2666 mio_expr (&ar
->start
[i
]);
2667 mio_expr (&ar
->end
[i
]);
2668 mio_expr (&ar
->stride
[i
]);
2674 gfc_internal_error ("mio_array_ref(): Unknown array ref");
2677 /* Unfortunately, ar->dimen_type is an anonymous enumerated type so
2678 we can't call mio_integer directly. Instead loop over each element
2679 and cast it to/from an integer. */
2680 if (iomode
== IO_OUTPUT
)
2682 for (i
= 0; i
< ar
->dimen
; i
++)
2684 int tmp
= (int)ar
->dimen_type
[i
];
2685 write_atom (ATOM_INTEGER
, &tmp
);
2690 for (i
= 0; i
< ar
->dimen
; i
++)
2692 require_atom (ATOM_INTEGER
);
2693 ar
->dimen_type
[i
] = (enum gfc_array_ref_dimen_type
) atom_int
;
2697 if (iomode
== IO_INPUT
)
2699 ar
->where
= gfc_current_locus
;
2701 for (i
= 0; i
< ar
->dimen
; i
++)
2702 ar
->c_where
[i
] = gfc_current_locus
;
2709 /* Saves or restores a pointer. The pointer is converted back and
2710 forth from an integer. We return the pointer_info pointer so that
2711 the caller can take additional action based on the pointer type. */
2713 static pointer_info
*
2714 mio_pointer_ref (void *gp
)
2718 if (iomode
== IO_OUTPUT
)
2720 p
= get_pointer (*((char **) gp
));
2721 write_atom (ATOM_INTEGER
, &p
->integer
);
2725 require_atom (ATOM_INTEGER
);
2726 p
= add_fixup (atom_int
, gp
);
2733 /* Save and load references to components that occur within
2734 expressions. We have to describe these references by a number and
2735 by name. The number is necessary for forward references during
2736 reading, and the name is necessary if the symbol already exists in
2737 the namespace and is not loaded again. */
2740 mio_component_ref (gfc_component
**cp
)
2744 p
= mio_pointer_ref (cp
);
2745 if (p
->type
== P_UNKNOWN
)
2746 p
->type
= P_COMPONENT
;
2750 static void mio_namespace_ref (gfc_namespace
**nsp
);
2751 static void mio_formal_arglist (gfc_formal_arglist
**formal
);
2752 static void mio_typebound_proc (gfc_typebound_proc
** proc
);
2755 mio_component (gfc_component
*c
, int vtype
)
2762 if (iomode
== IO_OUTPUT
)
2764 p
= get_pointer (c
);
2765 mio_integer (&p
->integer
);
2770 p
= get_integer (n
);
2771 associate_integer_pointer (p
, c
);
2774 if (p
->type
== P_UNKNOWN
)
2775 p
->type
= P_COMPONENT
;
2777 mio_pool_string (&c
->name
);
2778 mio_typespec (&c
->ts
);
2779 mio_array_spec (&c
->as
);
2781 mio_symbol_attribute (&c
->attr
);
2782 if (c
->ts
.type
== BT_CLASS
)
2783 c
->attr
.class_ok
= 1;
2784 c
->attr
.access
= MIO_NAME (gfc_access
) (c
->attr
.access
, access_types
);
2786 if (!vtype
|| strcmp (c
->name
, "_final") == 0
2787 || strcmp (c
->name
, "_hash") == 0)
2788 mio_expr (&c
->initializer
);
2790 if (c
->attr
.proc_pointer
)
2791 mio_typebound_proc (&c
->tb
);
2798 mio_component_list (gfc_component
**cp
, int vtype
)
2800 gfc_component
*c
, *tail
;
2804 if (iomode
== IO_OUTPUT
)
2806 for (c
= *cp
; c
; c
= c
->next
)
2807 mio_component (c
, vtype
);
2816 if (peek_atom () == ATOM_RPAREN
)
2819 c
= gfc_get_component ();
2820 mio_component (c
, vtype
);
2836 mio_actual_arg (gfc_actual_arglist
*a
)
2839 mio_pool_string (&a
->name
);
2840 mio_expr (&a
->expr
);
2846 mio_actual_arglist (gfc_actual_arglist
**ap
)
2848 gfc_actual_arglist
*a
, *tail
;
2852 if (iomode
== IO_OUTPUT
)
2854 for (a
= *ap
; a
; a
= a
->next
)
2864 if (peek_atom () != ATOM_LPAREN
)
2867 a
= gfc_get_actual_arglist ();
2883 /* Read and write formal argument lists. */
2886 mio_formal_arglist (gfc_formal_arglist
**formal
)
2888 gfc_formal_arglist
*f
, *tail
;
2892 if (iomode
== IO_OUTPUT
)
2894 for (f
= *formal
; f
; f
= f
->next
)
2895 mio_symbol_ref (&f
->sym
);
2899 *formal
= tail
= NULL
;
2901 while (peek_atom () != ATOM_RPAREN
)
2903 f
= gfc_get_formal_arglist ();
2904 mio_symbol_ref (&f
->sym
);
2906 if (*formal
== NULL
)
2919 /* Save or restore a reference to a symbol node. */
2922 mio_symbol_ref (gfc_symbol
**symp
)
2926 p
= mio_pointer_ref (symp
);
2927 if (p
->type
== P_UNKNOWN
)
2930 if (iomode
== IO_OUTPUT
)
2932 if (p
->u
.wsym
.state
== UNREFERENCED
)
2933 p
->u
.wsym
.state
= NEEDS_WRITE
;
2937 if (p
->u
.rsym
.state
== UNUSED
)
2938 p
->u
.rsym
.state
= NEEDED
;
2944 /* Save or restore a reference to a symtree node. */
2947 mio_symtree_ref (gfc_symtree
**stp
)
2952 if (iomode
== IO_OUTPUT
)
2953 mio_symbol_ref (&(*stp
)->n
.sym
);
2956 require_atom (ATOM_INTEGER
);
2957 p
= get_integer (atom_int
);
2959 /* An unused equivalence member; make a symbol and a symtree
2961 if (in_load_equiv
&& p
->u
.rsym
.symtree
== NULL
)
2963 /* Since this is not used, it must have a unique name. */
2964 p
->u
.rsym
.symtree
= gfc_get_unique_symtree (gfc_current_ns
);
2966 /* Make the symbol. */
2967 if (p
->u
.rsym
.sym
== NULL
)
2969 p
->u
.rsym
.sym
= gfc_new_symbol (p
->u
.rsym
.true_name
,
2971 p
->u
.rsym
.sym
->module
= gfc_get_string ("%s", p
->u
.rsym
.module
);
2974 p
->u
.rsym
.symtree
->n
.sym
= p
->u
.rsym
.sym
;
2975 p
->u
.rsym
.symtree
->n
.sym
->refs
++;
2976 p
->u
.rsym
.referenced
= 1;
2978 /* If the symbol is PRIVATE and in COMMON, load_commons will
2979 generate a fixup symbol, which must be associated. */
2981 resolve_fixups (p
->fixup
, p
->u
.rsym
.sym
);
2985 if (p
->type
== P_UNKNOWN
)
2988 if (p
->u
.rsym
.state
== UNUSED
)
2989 p
->u
.rsym
.state
= NEEDED
;
2991 if (p
->u
.rsym
.symtree
!= NULL
)
2993 *stp
= p
->u
.rsym
.symtree
;
2997 f
= XCNEW (fixup_t
);
2999 f
->next
= p
->u
.rsym
.stfixup
;
3000 p
->u
.rsym
.stfixup
= f
;
3002 f
->pointer
= (void **) stp
;
3009 mio_iterator (gfc_iterator
**ip
)
3015 if (iomode
== IO_OUTPUT
)
3022 if (peek_atom () == ATOM_RPAREN
)
3028 *ip
= gfc_get_iterator ();
3033 mio_expr (&iter
->var
);
3034 mio_expr (&iter
->start
);
3035 mio_expr (&iter
->end
);
3036 mio_expr (&iter
->step
);
3044 mio_constructor (gfc_constructor_base
*cp
)
3050 if (iomode
== IO_OUTPUT
)
3052 for (c
= gfc_constructor_first (*cp
); c
; c
= gfc_constructor_next (c
))
3055 mio_expr (&c
->expr
);
3056 mio_iterator (&c
->iterator
);
3062 while (peek_atom () != ATOM_RPAREN
)
3064 c
= gfc_constructor_append_expr (cp
, NULL
, NULL
);
3067 mio_expr (&c
->expr
);
3068 mio_iterator (&c
->iterator
);
3077 static const mstring ref_types
[] = {
3078 minit ("ARRAY", REF_ARRAY
),
3079 minit ("COMPONENT", REF_COMPONENT
),
3080 minit ("SUBSTRING", REF_SUBSTRING
),
3086 mio_ref (gfc_ref
**rp
)
3093 r
->type
= MIO_NAME (ref_type
) (r
->type
, ref_types
);
3098 mio_array_ref (&r
->u
.ar
);
3102 mio_symbol_ref (&r
->u
.c
.sym
);
3103 mio_component_ref (&r
->u
.c
.component
);
3107 mio_expr (&r
->u
.ss
.start
);
3108 mio_expr (&r
->u
.ss
.end
);
3109 mio_charlen (&r
->u
.ss
.length
);
3118 mio_ref_list (gfc_ref
**rp
)
3120 gfc_ref
*ref
, *head
, *tail
;
3124 if (iomode
== IO_OUTPUT
)
3126 for (ref
= *rp
; ref
; ref
= ref
->next
)
3133 while (peek_atom () != ATOM_RPAREN
)
3136 head
= tail
= gfc_get_ref ();
3139 tail
->next
= gfc_get_ref ();
3153 /* Read and write an integer value. */
3156 mio_gmp_integer (mpz_t
*integer
)
3160 if (iomode
== IO_INPUT
)
3162 if (parse_atom () != ATOM_STRING
)
3163 bad_module ("Expected integer string");
3165 mpz_init (*integer
);
3166 if (mpz_set_str (*integer
, atom_string
, 10))
3167 bad_module ("Error converting integer");
3173 p
= mpz_get_str (NULL
, 10, *integer
);
3174 write_atom (ATOM_STRING
, p
);
3181 mio_gmp_real (mpfr_t
*real
)
3186 if (iomode
== IO_INPUT
)
3188 if (parse_atom () != ATOM_STRING
)
3189 bad_module ("Expected real string");
3192 mpfr_set_str (*real
, atom_string
, 16, GFC_RND_MODE
);
3197 p
= mpfr_get_str (NULL
, &exponent
, 16, 0, *real
, GFC_RND_MODE
);
3199 if (mpfr_nan_p (*real
) || mpfr_inf_p (*real
))
3201 write_atom (ATOM_STRING
, p
);
3206 atom_string
= XCNEWVEC (char, strlen (p
) + 20);
3208 sprintf (atom_string
, "0.%s@%ld", p
, exponent
);
3210 /* Fix negative numbers. */
3211 if (atom_string
[2] == '-')
3213 atom_string
[0] = '-';
3214 atom_string
[1] = '0';
3215 atom_string
[2] = '.';
3218 write_atom (ATOM_STRING
, atom_string
);
3226 /* Save and restore the shape of an array constructor. */
3229 mio_shape (mpz_t
**pshape
, int rank
)
3235 /* A NULL shape is represented by (). */
3238 if (iomode
== IO_OUTPUT
)
3250 if (t
== ATOM_RPAREN
)
3257 shape
= gfc_get_shape (rank
);
3261 for (n
= 0; n
< rank
; n
++)
3262 mio_gmp_integer (&shape
[n
]);
3268 static const mstring expr_types
[] = {
3269 minit ("OP", EXPR_OP
),
3270 minit ("FUNCTION", EXPR_FUNCTION
),
3271 minit ("CONSTANT", EXPR_CONSTANT
),
3272 minit ("VARIABLE", EXPR_VARIABLE
),
3273 minit ("SUBSTRING", EXPR_SUBSTRING
),
3274 minit ("STRUCTURE", EXPR_STRUCTURE
),
3275 minit ("ARRAY", EXPR_ARRAY
),
3276 minit ("NULL", EXPR_NULL
),
3277 minit ("COMPCALL", EXPR_COMPCALL
),
3281 /* INTRINSIC_ASSIGN is missing because it is used as an index for
3282 generic operators, not in expressions. INTRINSIC_USER is also
3283 replaced by the correct function name by the time we see it. */
3285 static const mstring intrinsics
[] =
3287 minit ("UPLUS", INTRINSIC_UPLUS
),
3288 minit ("UMINUS", INTRINSIC_UMINUS
),
3289 minit ("PLUS", INTRINSIC_PLUS
),
3290 minit ("MINUS", INTRINSIC_MINUS
),
3291 minit ("TIMES", INTRINSIC_TIMES
),
3292 minit ("DIVIDE", INTRINSIC_DIVIDE
),
3293 minit ("POWER", INTRINSIC_POWER
),
3294 minit ("CONCAT", INTRINSIC_CONCAT
),
3295 minit ("AND", INTRINSIC_AND
),
3296 minit ("OR", INTRINSIC_OR
),
3297 minit ("EQV", INTRINSIC_EQV
),
3298 minit ("NEQV", INTRINSIC_NEQV
),
3299 minit ("EQ_SIGN", INTRINSIC_EQ
),
3300 minit ("EQ", INTRINSIC_EQ_OS
),
3301 minit ("NE_SIGN", INTRINSIC_NE
),
3302 minit ("NE", INTRINSIC_NE_OS
),
3303 minit ("GT_SIGN", INTRINSIC_GT
),
3304 minit ("GT", INTRINSIC_GT_OS
),
3305 minit ("GE_SIGN", INTRINSIC_GE
),
3306 minit ("GE", INTRINSIC_GE_OS
),
3307 minit ("LT_SIGN", INTRINSIC_LT
),
3308 minit ("LT", INTRINSIC_LT_OS
),
3309 minit ("LE_SIGN", INTRINSIC_LE
),
3310 minit ("LE", INTRINSIC_LE_OS
),
3311 minit ("NOT", INTRINSIC_NOT
),
3312 minit ("PARENTHESES", INTRINSIC_PARENTHESES
),
3313 minit ("USER", INTRINSIC_USER
),
3318 /* Remedy a couple of situations where the gfc_expr's can be defective. */
3321 fix_mio_expr (gfc_expr
*e
)
3323 gfc_symtree
*ns_st
= NULL
;
3326 if (iomode
!= IO_OUTPUT
)
3331 /* If this is a symtree for a symbol that came from a contained module
3332 namespace, it has a unique name and we should look in the current
3333 namespace to see if the required, non-contained symbol is available
3334 yet. If so, the latter should be written. */
3335 if (e
->symtree
->n
.sym
&& check_unique_name (e
->symtree
->name
))
3337 const char *name
= e
->symtree
->n
.sym
->name
;
3338 if (gfc_fl_struct (e
->symtree
->n
.sym
->attr
.flavor
))
3339 name
= gfc_dt_upper_string (name
);
3340 ns_st
= gfc_find_symtree (gfc_current_ns
->sym_root
, name
);
3343 /* On the other hand, if the existing symbol is the module name or the
3344 new symbol is a dummy argument, do not do the promotion. */
3345 if (ns_st
&& ns_st
->n
.sym
3346 && ns_st
->n
.sym
->attr
.flavor
!= FL_MODULE
3347 && !e
->symtree
->n
.sym
->attr
.dummy
)
3350 else if (e
->expr_type
== EXPR_FUNCTION
3351 && (e
->value
.function
.name
|| e
->value
.function
.isym
))
3355 /* In some circumstances, a function used in an initialization
3356 expression, in one use associated module, can fail to be
3357 coupled to its symtree when used in a specification
3358 expression in another module. */
3359 fname
= e
->value
.function
.esym
? e
->value
.function
.esym
->name
3360 : e
->value
.function
.isym
->name
;
3361 e
->symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, fname
);
3366 /* This is probably a reference to a private procedure from another
3367 module. To prevent a segfault, make a generic with no specific
3368 instances. If this module is used, without the required
3369 specific coming from somewhere, the appropriate error message
3371 gfc_get_symbol (fname
, gfc_current_ns
, &sym
);
3372 sym
->attr
.flavor
= FL_PROCEDURE
;
3373 sym
->attr
.generic
= 1;
3374 e
->symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, fname
);
3375 gfc_commit_symbol (sym
);
3380 /* Read and write expressions. The form "()" is allowed to indicate a
3384 mio_expr (gfc_expr
**ep
)
3392 if (iomode
== IO_OUTPUT
)
3401 MIO_NAME (expr_t
) (e
->expr_type
, expr_types
);
3406 if (t
== ATOM_RPAREN
)
3413 bad_module ("Expected expression type");
3415 e
= *ep
= gfc_get_expr ();
3416 e
->where
= gfc_current_locus
;
3417 e
->expr_type
= (expr_t
) find_enum (expr_types
);
3420 mio_typespec (&e
->ts
);
3421 mio_integer (&e
->rank
);
3425 switch (e
->expr_type
)
3429 = MIO_NAME (gfc_intrinsic_op
) (e
->value
.op
.op
, intrinsics
);
3431 switch (e
->value
.op
.op
)
3433 case INTRINSIC_UPLUS
:
3434 case INTRINSIC_UMINUS
:
3436 case INTRINSIC_PARENTHESES
:
3437 mio_expr (&e
->value
.op
.op1
);
3440 case INTRINSIC_PLUS
:
3441 case INTRINSIC_MINUS
:
3442 case INTRINSIC_TIMES
:
3443 case INTRINSIC_DIVIDE
:
3444 case INTRINSIC_POWER
:
3445 case INTRINSIC_CONCAT
:
3449 case INTRINSIC_NEQV
:
3451 case INTRINSIC_EQ_OS
:
3453 case INTRINSIC_NE_OS
:
3455 case INTRINSIC_GT_OS
:
3457 case INTRINSIC_GE_OS
:
3459 case INTRINSIC_LT_OS
:
3461 case INTRINSIC_LE_OS
:
3462 mio_expr (&e
->value
.op
.op1
);
3463 mio_expr (&e
->value
.op
.op2
);
3466 case INTRINSIC_USER
:
3467 /* INTRINSIC_USER should not appear in resolved expressions,
3468 though for UDRs we need to stream unresolved ones. */
3469 if (iomode
== IO_OUTPUT
)
3470 write_atom (ATOM_STRING
, e
->value
.op
.uop
->name
);
3473 char *name
= read_string ();
3474 const char *uop_name
= find_use_name (name
, true);
3475 if (uop_name
== NULL
)
3477 size_t len
= strlen (name
);
3478 char *name2
= XCNEWVEC (char, len
+ 2);
3479 memcpy (name2
, name
, len
);
3481 name2
[len
+ 1] = '\0';
3483 uop_name
= name
= name2
;
3485 e
->value
.op
.uop
= gfc_get_uop (uop_name
);
3488 mio_expr (&e
->value
.op
.op1
);
3489 mio_expr (&e
->value
.op
.op2
);
3493 bad_module ("Bad operator");
3499 mio_symtree_ref (&e
->symtree
);
3500 mio_actual_arglist (&e
->value
.function
.actual
);
3502 if (iomode
== IO_OUTPUT
)
3504 e
->value
.function
.name
3505 = mio_allocated_string (e
->value
.function
.name
);
3506 if (e
->value
.function
.esym
)
3510 else if (e
->value
.function
.isym
== NULL
)
3514 mio_integer (&flag
);
3518 mio_symbol_ref (&e
->value
.function
.esym
);
3521 mio_ref_list (&e
->ref
);
3526 write_atom (ATOM_STRING
, e
->value
.function
.isym
->name
);
3531 require_atom (ATOM_STRING
);
3532 if (atom_string
[0] == '\0')
3533 e
->value
.function
.name
= NULL
;
3535 e
->value
.function
.name
= gfc_get_string ("%s", atom_string
);
3538 mio_integer (&flag
);
3542 mio_symbol_ref (&e
->value
.function
.esym
);
3545 mio_ref_list (&e
->ref
);
3550 require_atom (ATOM_STRING
);
3551 e
->value
.function
.isym
= gfc_find_function (atom_string
);
3559 mio_symtree_ref (&e
->symtree
);
3560 mio_ref_list (&e
->ref
);
3563 case EXPR_SUBSTRING
:
3564 e
->value
.character
.string
3565 = CONST_CAST (gfc_char_t
*,
3566 mio_allocated_wide_string (e
->value
.character
.string
,
3567 e
->value
.character
.length
));
3568 mio_ref_list (&e
->ref
);
3571 case EXPR_STRUCTURE
:
3573 mio_constructor (&e
->value
.constructor
);
3574 mio_shape (&e
->shape
, e
->rank
);
3581 mio_gmp_integer (&e
->value
.integer
);
3585 gfc_set_model_kind (e
->ts
.kind
);
3586 mio_gmp_real (&e
->value
.real
);
3590 gfc_set_model_kind (e
->ts
.kind
);
3591 mio_gmp_real (&mpc_realref (e
->value
.complex));
3592 mio_gmp_real (&mpc_imagref (e
->value
.complex));
3596 mio_integer (&e
->value
.logical
);
3600 mio_integer (&e
->value
.character
.length
);
3601 e
->value
.character
.string
3602 = CONST_CAST (gfc_char_t
*,
3603 mio_allocated_wide_string (e
->value
.character
.string
,
3604 e
->value
.character
.length
));
3608 bad_module ("Bad type in constant expression");
3626 /* Read and write namelists. */
3629 mio_namelist (gfc_symbol
*sym
)
3631 gfc_namelist
*n
, *m
;
3632 const char *check_name
;
3636 if (iomode
== IO_OUTPUT
)
3638 for (n
= sym
->namelist
; n
; n
= n
->next
)
3639 mio_symbol_ref (&n
->sym
);
3643 /* This departure from the standard is flagged as an error.
3644 It does, in fact, work correctly. TODO: Allow it
3646 if (sym
->attr
.flavor
== FL_NAMELIST
)
3648 check_name
= find_use_name (sym
->name
, false);
3649 if (check_name
&& strcmp (check_name
, sym
->name
) != 0)
3650 gfc_error ("Namelist %s cannot be renamed by USE "
3651 "association to %s", sym
->name
, check_name
);
3655 while (peek_atom () != ATOM_RPAREN
)
3657 n
= gfc_get_namelist ();
3658 mio_symbol_ref (&n
->sym
);
3660 if (sym
->namelist
== NULL
)
3667 sym
->namelist_tail
= m
;
3674 /* Save/restore lists of gfc_interface structures. When loading an
3675 interface, we are really appending to the existing list of
3676 interfaces. Checking for duplicate and ambiguous interfaces has to
3677 be done later when all symbols have been loaded. */
3680 mio_interface_rest (gfc_interface
**ip
)
3682 gfc_interface
*tail
, *p
;
3683 pointer_info
*pi
= NULL
;
3685 if (iomode
== IO_OUTPUT
)
3688 for (p
= *ip
; p
; p
= p
->next
)
3689 mio_symbol_ref (&p
->sym
);
3704 if (peek_atom () == ATOM_RPAREN
)
3707 p
= gfc_get_interface ();
3708 p
->where
= gfc_current_locus
;
3709 pi
= mio_symbol_ref (&p
->sym
);
3725 /* Save/restore a nameless operator interface. */
3728 mio_interface (gfc_interface
**ip
)
3731 mio_interface_rest (ip
);
3735 /* Save/restore a named operator interface. */
3738 mio_symbol_interface (const char **name
, const char **module
,
3742 mio_pool_string (name
);
3743 mio_pool_string (module
);
3744 mio_interface_rest (ip
);
3749 mio_namespace_ref (gfc_namespace
**nsp
)
3754 p
= mio_pointer_ref (nsp
);
3756 if (p
->type
== P_UNKNOWN
)
3757 p
->type
= P_NAMESPACE
;
3759 if (iomode
== IO_INPUT
&& p
->integer
!= 0)
3761 ns
= (gfc_namespace
*) p
->u
.pointer
;
3764 ns
= gfc_get_namespace (NULL
, 0);
3765 associate_integer_pointer (p
, ns
);
3773 /* Save/restore the f2k_derived namespace of a derived-type symbol. */
3775 static gfc_namespace
* current_f2k_derived
;
3778 mio_typebound_proc (gfc_typebound_proc
** proc
)
3781 int overriding_flag
;
3783 if (iomode
== IO_INPUT
)
3785 *proc
= gfc_get_typebound_proc (NULL
);
3786 (*proc
)->where
= gfc_current_locus
;
3792 (*proc
)->access
= MIO_NAME (gfc_access
) ((*proc
)->access
, access_types
);
3794 /* IO the NON_OVERRIDABLE/DEFERRED combination. */
3795 gcc_assert (!((*proc
)->deferred
&& (*proc
)->non_overridable
));
3796 overriding_flag
= ((*proc
)->deferred
<< 1) | (*proc
)->non_overridable
;
3797 overriding_flag
= mio_name (overriding_flag
, binding_overriding
);
3798 (*proc
)->deferred
= ((overriding_flag
& 2) != 0);
3799 (*proc
)->non_overridable
= ((overriding_flag
& 1) != 0);
3800 gcc_assert (!((*proc
)->deferred
&& (*proc
)->non_overridable
));
3802 (*proc
)->nopass
= mio_name ((*proc
)->nopass
, binding_passing
);
3803 (*proc
)->is_generic
= mio_name ((*proc
)->is_generic
, binding_generic
);
3804 (*proc
)->ppc
= mio_name((*proc
)->ppc
, binding_ppc
);
3806 mio_pool_string (&((*proc
)->pass_arg
));
3808 flag
= (int) (*proc
)->pass_arg_num
;
3809 mio_integer (&flag
);
3810 (*proc
)->pass_arg_num
= (unsigned) flag
;
3812 if ((*proc
)->is_generic
)
3819 if (iomode
== IO_OUTPUT
)
3820 for (g
= (*proc
)->u
.generic
; g
; g
= g
->next
)
3822 iop
= (int) g
->is_operator
;
3824 mio_allocated_string (g
->specific_st
->name
);
3828 (*proc
)->u
.generic
= NULL
;
3829 while (peek_atom () != ATOM_RPAREN
)
3831 gfc_symtree
** sym_root
;
3833 g
= gfc_get_tbp_generic ();
3837 g
->is_operator
= (bool) iop
;
3839 require_atom (ATOM_STRING
);
3840 sym_root
= ¤t_f2k_derived
->tb_sym_root
;
3841 g
->specific_st
= gfc_get_tbp_symtree (sym_root
, atom_string
);
3844 g
->next
= (*proc
)->u
.generic
;
3845 (*proc
)->u
.generic
= g
;
3851 else if (!(*proc
)->ppc
)
3852 mio_symtree_ref (&(*proc
)->u
.specific
);
3857 /* Walker-callback function for this purpose. */
3859 mio_typebound_symtree (gfc_symtree
* st
)
3861 if (iomode
== IO_OUTPUT
&& !st
->n
.tb
)
3864 if (iomode
== IO_OUTPUT
)
3867 mio_allocated_string (st
->name
);
3869 /* For IO_INPUT, the above is done in mio_f2k_derived. */
3871 mio_typebound_proc (&st
->n
.tb
);
3875 /* IO a full symtree (in all depth). */
3877 mio_full_typebound_tree (gfc_symtree
** root
)
3881 if (iomode
== IO_OUTPUT
)
3882 gfc_traverse_symtree (*root
, &mio_typebound_symtree
);
3885 while (peek_atom () == ATOM_LPAREN
)
3891 require_atom (ATOM_STRING
);
3892 st
= gfc_get_tbp_symtree (root
, atom_string
);
3895 mio_typebound_symtree (st
);
3903 mio_finalizer (gfc_finalizer
**f
)
3905 if (iomode
== IO_OUTPUT
)
3908 gcc_assert ((*f
)->proc_tree
); /* Should already be resolved. */
3909 mio_symtree_ref (&(*f
)->proc_tree
);
3913 *f
= gfc_get_finalizer ();
3914 (*f
)->where
= gfc_current_locus
; /* Value should not matter. */
3917 mio_symtree_ref (&(*f
)->proc_tree
);
3918 (*f
)->proc_sym
= NULL
;
3923 mio_f2k_derived (gfc_namespace
*f2k
)
3925 current_f2k_derived
= f2k
;
3927 /* Handle the list of finalizer procedures. */
3929 if (iomode
== IO_OUTPUT
)
3932 for (f
= f2k
->finalizers
; f
; f
= f
->next
)
3937 f2k
->finalizers
= NULL
;
3938 while (peek_atom () != ATOM_RPAREN
)
3940 gfc_finalizer
*cur
= NULL
;
3941 mio_finalizer (&cur
);
3942 cur
->next
= f2k
->finalizers
;
3943 f2k
->finalizers
= cur
;
3948 /* Handle type-bound procedures. */
3949 mio_full_typebound_tree (&f2k
->tb_sym_root
);
3951 /* Type-bound user operators. */
3952 mio_full_typebound_tree (&f2k
->tb_uop_root
);
3954 /* Type-bound intrinsic operators. */
3956 if (iomode
== IO_OUTPUT
)
3959 for (op
= GFC_INTRINSIC_BEGIN
; op
!= GFC_INTRINSIC_END
; ++op
)
3961 gfc_intrinsic_op realop
;
3963 if (op
== INTRINSIC_USER
|| !f2k
->tb_op
[op
])
3967 realop
= (gfc_intrinsic_op
) op
;
3968 mio_intrinsic_op (&realop
);
3969 mio_typebound_proc (&f2k
->tb_op
[op
]);
3974 while (peek_atom () != ATOM_RPAREN
)
3976 gfc_intrinsic_op op
= GFC_INTRINSIC_BEGIN
; /* Silence GCC. */
3979 mio_intrinsic_op (&op
);
3980 mio_typebound_proc (&f2k
->tb_op
[op
]);
3987 mio_full_f2k_derived (gfc_symbol
*sym
)
3991 if (iomode
== IO_OUTPUT
)
3993 if (sym
->f2k_derived
)
3994 mio_f2k_derived (sym
->f2k_derived
);
3998 if (peek_atom () != ATOM_RPAREN
)
4000 sym
->f2k_derived
= gfc_get_namespace (NULL
, 0);
4001 mio_f2k_derived (sym
->f2k_derived
);
4004 gcc_assert (!sym
->f2k_derived
);
4010 static const mstring omp_declare_simd_clauses
[] =
4012 minit ("INBRANCH", 0),
4013 minit ("NOTINBRANCH", 1),
4014 minit ("SIMDLEN", 2),
4015 minit ("UNIFORM", 3),
4016 minit ("LINEAR", 4),
4017 minit ("ALIGNED", 5),
4021 /* Handle !$omp declare simd. */
4024 mio_omp_declare_simd (gfc_namespace
*ns
, gfc_omp_declare_simd
**odsp
)
4026 if (iomode
== IO_OUTPUT
)
4031 else if (peek_atom () != ATOM_LPAREN
)
4034 gfc_omp_declare_simd
*ods
= *odsp
;
4037 if (iomode
== IO_OUTPUT
)
4039 write_atom (ATOM_NAME
, "OMP_DECLARE_SIMD");
4042 gfc_omp_namelist
*n
;
4044 if (ods
->clauses
->inbranch
)
4045 mio_name (0, omp_declare_simd_clauses
);
4046 if (ods
->clauses
->notinbranch
)
4047 mio_name (1, omp_declare_simd_clauses
);
4048 if (ods
->clauses
->simdlen_expr
)
4050 mio_name (2, omp_declare_simd_clauses
);
4051 mio_expr (&ods
->clauses
->simdlen_expr
);
4053 for (n
= ods
->clauses
->lists
[OMP_LIST_UNIFORM
]; n
; n
= n
->next
)
4055 mio_name (3, omp_declare_simd_clauses
);
4056 mio_symbol_ref (&n
->sym
);
4058 for (n
= ods
->clauses
->lists
[OMP_LIST_LINEAR
]; n
; n
= n
->next
)
4060 mio_name (4, omp_declare_simd_clauses
);
4061 mio_symbol_ref (&n
->sym
);
4062 mio_expr (&n
->expr
);
4064 for (n
= ods
->clauses
->lists
[OMP_LIST_ALIGNED
]; n
; n
= n
->next
)
4066 mio_name (5, omp_declare_simd_clauses
);
4067 mio_symbol_ref (&n
->sym
);
4068 mio_expr (&n
->expr
);
4074 gfc_omp_namelist
**ptrs
[3] = { NULL
, NULL
, NULL
};
4076 require_atom (ATOM_NAME
);
4077 *odsp
= ods
= gfc_get_omp_declare_simd ();
4078 ods
->where
= gfc_current_locus
;
4079 ods
->proc_name
= ns
->proc_name
;
4080 if (peek_atom () == ATOM_NAME
)
4082 ods
->clauses
= gfc_get_omp_clauses ();
4083 ptrs
[0] = &ods
->clauses
->lists
[OMP_LIST_UNIFORM
];
4084 ptrs
[1] = &ods
->clauses
->lists
[OMP_LIST_LINEAR
];
4085 ptrs
[2] = &ods
->clauses
->lists
[OMP_LIST_ALIGNED
];
4087 while (peek_atom () == ATOM_NAME
)
4089 gfc_omp_namelist
*n
;
4090 int t
= mio_name (0, omp_declare_simd_clauses
);
4094 case 0: ods
->clauses
->inbranch
= true; break;
4095 case 1: ods
->clauses
->notinbranch
= true; break;
4096 case 2: mio_expr (&ods
->clauses
->simdlen_expr
); break;
4100 *ptrs
[t
- 3] = n
= gfc_get_omp_namelist ();
4101 ptrs
[t
- 3] = &n
->next
;
4102 mio_symbol_ref (&n
->sym
);
4104 mio_expr (&n
->expr
);
4110 mio_omp_declare_simd (ns
, &ods
->next
);
4116 static const mstring omp_declare_reduction_stmt
[] =
4118 minit ("ASSIGN", 0),
4125 mio_omp_udr_expr (gfc_omp_udr
*udr
, gfc_symbol
**sym1
, gfc_symbol
**sym2
,
4126 gfc_namespace
*ns
, bool is_initializer
)
4128 if (iomode
== IO_OUTPUT
)
4130 if ((*sym1
)->module
== NULL
)
4132 (*sym1
)->module
= module_name
;
4133 (*sym2
)->module
= module_name
;
4135 mio_symbol_ref (sym1
);
4136 mio_symbol_ref (sym2
);
4137 if (ns
->code
->op
== EXEC_ASSIGN
)
4139 mio_name (0, omp_declare_reduction_stmt
);
4140 mio_expr (&ns
->code
->expr1
);
4141 mio_expr (&ns
->code
->expr2
);
4146 mio_name (1, omp_declare_reduction_stmt
);
4147 mio_symtree_ref (&ns
->code
->symtree
);
4148 mio_actual_arglist (&ns
->code
->ext
.actual
);
4150 flag
= ns
->code
->resolved_isym
!= NULL
;
4151 mio_integer (&flag
);
4153 write_atom (ATOM_STRING
, ns
->code
->resolved_isym
->name
);
4155 mio_symbol_ref (&ns
->code
->resolved_sym
);
4160 pointer_info
*p1
= mio_symbol_ref (sym1
);
4161 pointer_info
*p2
= mio_symbol_ref (sym2
);
4163 gcc_assert (p1
->u
.rsym
.ns
== p2
->u
.rsym
.ns
);
4164 gcc_assert (p1
->u
.rsym
.sym
== NULL
);
4165 /* Add hidden symbols to the symtree. */
4166 pointer_info
*q
= get_integer (p1
->u
.rsym
.ns
);
4167 q
->u
.pointer
= (void *) ns
;
4168 sym
= gfc_new_symbol (is_initializer
? "omp_priv" : "omp_out", ns
);
4170 sym
->module
= gfc_get_string ("%s", p1
->u
.rsym
.module
);
4171 associate_integer_pointer (p1
, sym
);
4172 sym
->attr
.omp_udr_artificial_var
= 1;
4173 gcc_assert (p2
->u
.rsym
.sym
== NULL
);
4174 sym
= gfc_new_symbol (is_initializer
? "omp_orig" : "omp_in", ns
);
4176 sym
->module
= gfc_get_string ("%s", p2
->u
.rsym
.module
);
4177 associate_integer_pointer (p2
, sym
);
4178 sym
->attr
.omp_udr_artificial_var
= 1;
4179 if (mio_name (0, omp_declare_reduction_stmt
) == 0)
4181 ns
->code
= gfc_get_code (EXEC_ASSIGN
);
4182 mio_expr (&ns
->code
->expr1
);
4183 mio_expr (&ns
->code
->expr2
);
4188 ns
->code
= gfc_get_code (EXEC_CALL
);
4189 mio_symtree_ref (&ns
->code
->symtree
);
4190 mio_actual_arglist (&ns
->code
->ext
.actual
);
4192 mio_integer (&flag
);
4195 require_atom (ATOM_STRING
);
4196 ns
->code
->resolved_isym
= gfc_find_subroutine (atom_string
);
4200 mio_symbol_ref (&ns
->code
->resolved_sym
);
4202 ns
->code
->loc
= gfc_current_locus
;
4208 /* Unlike most other routines, the address of the symbol node is already
4209 fixed on input and the name/module has already been filled in.
4210 If you update the symbol format here, don't forget to update read_module
4211 as well (look for "seek to the symbol's component list"). */
4214 mio_symbol (gfc_symbol
*sym
)
4216 int intmod
= INTMOD_NONE
;
4220 mio_symbol_attribute (&sym
->attr
);
4222 /* Note that components are always saved, even if they are supposed
4223 to be private. Component access is checked during searching. */
4224 mio_component_list (&sym
->components
, sym
->attr
.vtype
);
4225 if (sym
->components
!= NULL
)
4226 sym
->component_access
4227 = MIO_NAME (gfc_access
) (sym
->component_access
, access_types
);
4229 mio_typespec (&sym
->ts
);
4230 if (sym
->ts
.type
== BT_CLASS
)
4231 sym
->attr
.class_ok
= 1;
4233 if (iomode
== IO_OUTPUT
)
4234 mio_namespace_ref (&sym
->formal_ns
);
4237 mio_namespace_ref (&sym
->formal_ns
);
4239 sym
->formal_ns
->proc_name
= sym
;
4242 /* Save/restore common block links. */
4243 mio_symbol_ref (&sym
->common_next
);
4245 mio_formal_arglist (&sym
->formal
);
4247 if (sym
->attr
.flavor
== FL_PARAMETER
)
4248 mio_expr (&sym
->value
);
4250 mio_array_spec (&sym
->as
);
4252 mio_symbol_ref (&sym
->result
);
4254 if (sym
->attr
.cray_pointee
)
4255 mio_symbol_ref (&sym
->cp_pointer
);
4257 /* Load/save the f2k_derived namespace of a derived-type symbol. */
4258 mio_full_f2k_derived (sym
);
4262 /* Add the fields that say whether this is from an intrinsic module,
4263 and if so, what symbol it is within the module. */
4264 /* mio_integer (&(sym->from_intmod)); */
4265 if (iomode
== IO_OUTPUT
)
4267 intmod
= sym
->from_intmod
;
4268 mio_integer (&intmod
);
4272 mio_integer (&intmod
);
4274 sym
->from_intmod
= current_intmod
;
4276 sym
->from_intmod
= (intmod_id
) intmod
;
4279 mio_integer (&(sym
->intmod_sym_id
));
4281 if (gfc_fl_struct (sym
->attr
.flavor
))
4282 mio_integer (&(sym
->hash_value
));
4285 && sym
->formal_ns
->proc_name
== sym
4286 && sym
->formal_ns
->entries
== NULL
)
4287 mio_omp_declare_simd (sym
->formal_ns
, &sym
->formal_ns
->omp_declare_simd
);
4293 /************************* Top level subroutines *************************/
4295 /* Given a root symtree node and a symbol, try to find a symtree that
4296 references the symbol that is not a unique name. */
4298 static gfc_symtree
*
4299 find_symtree_for_symbol (gfc_symtree
*st
, gfc_symbol
*sym
)
4301 gfc_symtree
*s
= NULL
;
4306 s
= find_symtree_for_symbol (st
->right
, sym
);
4309 s
= find_symtree_for_symbol (st
->left
, sym
);
4313 if (st
->n
.sym
== sym
&& !check_unique_name (st
->name
))
4320 /* A recursive function to look for a specific symbol by name and by
4321 module. Whilst several symtrees might point to one symbol, its
4322 is sufficient for the purposes here than one exist. Note that
4323 generic interfaces are distinguished as are symbols that have been
4324 renamed in another module. */
4325 static gfc_symtree
*
4326 find_symbol (gfc_symtree
*st
, const char *name
,
4327 const char *module
, int generic
)
4330 gfc_symtree
*retval
, *s
;
4332 if (st
== NULL
|| st
->n
.sym
== NULL
)
4335 c
= strcmp (name
, st
->n
.sym
->name
);
4336 if (c
== 0 && st
->n
.sym
->module
4337 && strcmp (module
, st
->n
.sym
->module
) == 0
4338 && !check_unique_name (st
->name
))
4340 s
= gfc_find_symtree (gfc_current_ns
->sym_root
, name
);
4342 /* Detect symbols that are renamed by use association in another
4343 module by the absence of a symtree and null attr.use_rename,
4344 since the latter is not transmitted in the module file. */
4345 if (((!generic
&& !st
->n
.sym
->attr
.generic
)
4346 || (generic
&& st
->n
.sym
->attr
.generic
))
4347 && !(s
== NULL
&& !st
->n
.sym
->attr
.use_rename
))
4351 retval
= find_symbol (st
->left
, name
, module
, generic
);
4354 retval
= find_symbol (st
->right
, name
, module
, generic
);
4360 /* Skip a list between balanced left and right parens.
4361 By setting NEST_LEVEL one assumes that a number of NEST_LEVEL opening parens
4362 have been already parsed by hand, and the remaining of the content is to be
4363 skipped here. The default value is 0 (balanced parens). */
4366 skip_list (int nest_level
= 0)
4373 switch (parse_atom ())
4396 /* Load operator interfaces from the module. Interfaces are unusual
4397 in that they attach themselves to existing symbols. */
4400 load_operator_interfaces (void)
4403 char name
[GFC_MAX_SYMBOL_LEN
+ 1], module
[GFC_MAX_SYMBOL_LEN
+ 1];
4405 pointer_info
*pi
= NULL
;
4410 while (peek_atom () != ATOM_RPAREN
)
4414 mio_internal_string (name
);
4415 mio_internal_string (module
);
4417 n
= number_use_names (name
, true);
4420 for (i
= 1; i
<= n
; i
++)
4422 /* Decide if we need to load this one or not. */
4423 p
= find_use_name_n (name
, &i
, true);
4427 while (parse_atom () != ATOM_RPAREN
);
4433 uop
= gfc_get_uop (p
);
4434 pi
= mio_interface_rest (&uop
->op
);
4438 if (gfc_find_uop (p
, NULL
))
4440 uop
= gfc_get_uop (p
);
4441 uop
->op
= gfc_get_interface ();
4442 uop
->op
->where
= gfc_current_locus
;
4443 add_fixup (pi
->integer
, &uop
->op
->sym
);
4452 /* Load interfaces from the module. Interfaces are unusual in that
4453 they attach themselves to existing symbols. */
4456 load_generic_interfaces (void)
4459 char name
[GFC_MAX_SYMBOL_LEN
+ 1], module
[GFC_MAX_SYMBOL_LEN
+ 1];
4461 gfc_interface
*generic
= NULL
, *gen
= NULL
;
4463 bool ambiguous_set
= false;
4467 while (peek_atom () != ATOM_RPAREN
)
4471 mio_internal_string (name
);
4472 mio_internal_string (module
);
4474 n
= number_use_names (name
, false);
4475 renamed
= n
? 1 : 0;
4478 for (i
= 1; i
<= n
; i
++)
4481 /* Decide if we need to load this one or not. */
4482 p
= find_use_name_n (name
, &i
, false);
4484 st
= find_symbol (gfc_current_ns
->sym_root
,
4485 name
, module_name
, 1);
4487 if (!p
|| gfc_find_symbol (p
, NULL
, 0, &sym
))
4489 /* Skip the specific names for these cases. */
4490 while (i
== 1 && parse_atom () != ATOM_RPAREN
);
4495 /* If the symbol exists already and is being USEd without being
4496 in an ONLY clause, do not load a new symtree(11.3.2). */
4497 if (!only_flag
&& st
)
4505 if (strcmp (st
->name
, p
) != 0)
4507 st
= gfc_new_symtree (&gfc_current_ns
->sym_root
, p
);
4513 /* Since we haven't found a valid generic interface, we had
4517 gfc_get_symbol (p
, NULL
, &sym
);
4518 sym
->name
= gfc_get_string ("%s", name
);
4519 sym
->module
= module_name
;
4520 sym
->attr
.flavor
= FL_PROCEDURE
;
4521 sym
->attr
.generic
= 1;
4522 sym
->attr
.use_assoc
= 1;
4527 /* Unless sym is a generic interface, this reference
4530 st
= gfc_find_symtree (gfc_current_ns
->sym_root
, p
);
4534 if (st
&& !sym
->attr
.generic
4537 && strcmp (module
, sym
->module
))
4539 ambiguous_set
= true;
4544 sym
->attr
.use_only
= only_flag
;
4545 sym
->attr
.use_rename
= renamed
;
4549 mio_interface_rest (&sym
->generic
);
4550 generic
= sym
->generic
;
4552 else if (!sym
->generic
)
4554 sym
->generic
= generic
;
4555 sym
->attr
.generic_copy
= 1;
4558 /* If a procedure that is not generic has generic interfaces
4559 that include itself, it is generic! We need to take care
4560 to retain symbols ambiguous that were already so. */
4561 if (sym
->attr
.use_assoc
4562 && !sym
->attr
.generic
4563 && sym
->attr
.flavor
== FL_PROCEDURE
)
4565 for (gen
= generic
; gen
; gen
= gen
->next
)
4567 if (gen
->sym
== sym
)
4569 sym
->attr
.generic
= 1;
4584 /* Load common blocks. */
4589 char name
[GFC_MAX_SYMBOL_LEN
+ 1];
4594 while (peek_atom () != ATOM_RPAREN
)
4599 mio_internal_string (name
);
4601 p
= gfc_get_common (name
, 1);
4603 mio_symbol_ref (&p
->head
);
4604 mio_integer (&flags
);
4608 p
->threadprivate
= 1;
4611 /* Get whether this was a bind(c) common or not. */
4612 mio_integer (&p
->is_bind_c
);
4613 /* Get the binding label. */
4614 label
= read_string ();
4616 p
->binding_label
= IDENTIFIER_POINTER (get_identifier (label
));
4626 /* Load equivalences. The flag in_load_equiv informs mio_expr_ref of this
4627 so that unused variables are not loaded and so that the expression can
4633 gfc_equiv
*head
, *tail
, *end
, *eq
, *equiv
;
4637 in_load_equiv
= true;
4639 end
= gfc_current_ns
->equiv
;
4640 while (end
!= NULL
&& end
->next
!= NULL
)
4643 while (peek_atom () != ATOM_RPAREN
) {
4647 while(peek_atom () != ATOM_RPAREN
)
4650 head
= tail
= gfc_get_equiv ();
4653 tail
->eq
= gfc_get_equiv ();
4657 mio_pool_string (&tail
->module
);
4658 mio_expr (&tail
->expr
);
4661 /* Check for duplicate equivalences being loaded from different modules */
4663 for (equiv
= gfc_current_ns
->equiv
; equiv
; equiv
= equiv
->next
)
4665 if (equiv
->module
&& head
->module
4666 && strcmp (equiv
->module
, head
->module
) == 0)
4675 for (eq
= head
; eq
; eq
= head
)
4678 gfc_free_expr (eq
->expr
);
4684 gfc_current_ns
->equiv
= head
;
4695 in_load_equiv
= false;
4699 /* This function loads OpenMP user defined reductions. */
4701 load_omp_udrs (void)
4704 while (peek_atom () != ATOM_RPAREN
)
4706 const char *name
= NULL
, *newname
;
4710 gfc_omp_reduction_op rop
= OMP_REDUCTION_USER
;
4713 mio_pool_string (&name
);
4716 if (strncmp (name
, "operator ", sizeof ("operator ") - 1) == 0)
4718 const char *p
= name
+ sizeof ("operator ") - 1;
4719 if (strcmp (p
, "+") == 0)
4720 rop
= OMP_REDUCTION_PLUS
;
4721 else if (strcmp (p
, "*") == 0)
4722 rop
= OMP_REDUCTION_TIMES
;
4723 else if (strcmp (p
, "-") == 0)
4724 rop
= OMP_REDUCTION_MINUS
;
4725 else if (strcmp (p
, ".and.") == 0)
4726 rop
= OMP_REDUCTION_AND
;
4727 else if (strcmp (p
, ".or.") == 0)
4728 rop
= OMP_REDUCTION_OR
;
4729 else if (strcmp (p
, ".eqv.") == 0)
4730 rop
= OMP_REDUCTION_EQV
;
4731 else if (strcmp (p
, ".neqv.") == 0)
4732 rop
= OMP_REDUCTION_NEQV
;
4735 if (rop
== OMP_REDUCTION_USER
&& name
[0] == '.')
4737 size_t len
= strlen (name
+ 1);
4738 altname
= XALLOCAVEC (char, len
);
4739 gcc_assert (name
[len
] == '.');
4740 memcpy (altname
, name
+ 1, len
- 1);
4741 altname
[len
- 1] = '\0';
4744 if (rop
== OMP_REDUCTION_USER
)
4745 newname
= find_use_name (altname
? altname
: name
, !!altname
);
4746 else if (only_flag
&& find_use_operator ((gfc_intrinsic_op
) rop
) == NULL
)
4748 if (newname
== NULL
)
4753 if (altname
&& newname
!= altname
)
4755 size_t len
= strlen (newname
);
4756 altname
= XALLOCAVEC (char, len
+ 3);
4758 memcpy (altname
+ 1, newname
, len
);
4759 altname
[len
+ 1] = '.';
4760 altname
[len
+ 2] = '\0';
4761 name
= gfc_get_string ("%s", altname
);
4763 st
= gfc_find_symtree (gfc_current_ns
->omp_udr_root
, name
);
4764 gfc_omp_udr
*udr
= gfc_omp_udr_find (st
, &ts
);
4767 require_atom (ATOM_INTEGER
);
4768 pointer_info
*p
= get_integer (atom_int
);
4769 if (strcmp (p
->u
.rsym
.module
, udr
->omp_out
->module
))
4771 gfc_error ("Ambiguous !$OMP DECLARE REDUCTION from "
4773 p
->u
.rsym
.module
, &gfc_current_locus
);
4774 gfc_error ("Previous !$OMP DECLARE REDUCTION from module "
4776 udr
->omp_out
->module
, &udr
->where
);
4781 udr
= gfc_get_omp_udr ();
4785 udr
->where
= gfc_current_locus
;
4786 udr
->combiner_ns
= gfc_get_namespace (gfc_current_ns
, 1);
4787 udr
->combiner_ns
->proc_name
= gfc_current_ns
->proc_name
;
4788 mio_omp_udr_expr (udr
, &udr
->omp_out
, &udr
->omp_in
, udr
->combiner_ns
,
4790 if (peek_atom () != ATOM_RPAREN
)
4792 udr
->initializer_ns
= gfc_get_namespace (gfc_current_ns
, 1);
4793 udr
->initializer_ns
->proc_name
= gfc_current_ns
->proc_name
;
4794 mio_omp_udr_expr (udr
, &udr
->omp_priv
, &udr
->omp_orig
,
4795 udr
->initializer_ns
, true);
4799 udr
->next
= st
->n
.omp_udr
;
4800 st
->n
.omp_udr
= udr
;
4804 st
= gfc_new_symtree (&gfc_current_ns
->omp_udr_root
, name
);
4805 st
->n
.omp_udr
= udr
;
4813 /* Recursive function to traverse the pointer_info tree and load a
4814 needed symbol. We return nonzero if we load a symbol and stop the
4815 traversal, because the act of loading can alter the tree. */
4818 load_needed (pointer_info
*p
)
4829 rv
|= load_needed (p
->left
);
4830 rv
|= load_needed (p
->right
);
4832 if (p
->type
!= P_SYMBOL
|| p
->u
.rsym
.state
!= NEEDED
)
4835 p
->u
.rsym
.state
= USED
;
4837 set_module_locus (&p
->u
.rsym
.where
);
4839 sym
= p
->u
.rsym
.sym
;
4842 q
= get_integer (p
->u
.rsym
.ns
);
4844 ns
= (gfc_namespace
*) q
->u
.pointer
;
4847 /* Create an interface namespace if necessary. These are
4848 the namespaces that hold the formal parameters of module
4851 ns
= gfc_get_namespace (NULL
, 0);
4852 associate_integer_pointer (q
, ns
);
4855 /* Use the module sym as 'proc_name' so that gfc_get_symbol_decl
4856 doesn't go pear-shaped if the symbol is used. */
4858 gfc_find_symbol (p
->u
.rsym
.module
, gfc_current_ns
,
4861 sym
= gfc_new_symbol (p
->u
.rsym
.true_name
, ns
);
4862 sym
->name
= gfc_dt_lower_string (p
->u
.rsym
.true_name
);
4863 sym
->module
= gfc_get_string ("%s", p
->u
.rsym
.module
);
4864 if (p
->u
.rsym
.binding_label
)
4865 sym
->binding_label
= IDENTIFIER_POINTER (get_identifier
4866 (p
->u
.rsym
.binding_label
));
4868 associate_integer_pointer (p
, sym
);
4872 sym
->attr
.use_assoc
= 1;
4874 /* Unliked derived types, a STRUCTURE may share names with other symbols.
4875 We greedily converted the the symbol name to lowercase before we knew its
4876 type, so now we must fix it. */
4877 if (sym
->attr
.flavor
== FL_STRUCT
)
4878 sym
->name
= gfc_dt_upper_string (sym
->name
);
4880 /* Mark as only or rename for later diagnosis for explicitly imported
4881 but not used warnings; don't mark internal symbols such as __vtab,
4882 __def_init etc. Only mark them if they have been explicitly loaded. */
4884 if (only_flag
&& sym
->name
[0] != '_' && sym
->name
[1] != '_')
4888 /* Search the use/rename list for the variable; if the variable is
4890 for (u
= gfc_rename_list
; u
; u
= u
->next
)
4892 if (strcmp (u
->use_name
, sym
->name
) == 0)
4894 sym
->attr
.use_only
= 1;
4900 if (p
->u
.rsym
.renamed
)
4901 sym
->attr
.use_rename
= 1;
4907 /* Recursive function for cleaning up things after a module has been read. */
4910 read_cleanup (pointer_info
*p
)
4918 read_cleanup (p
->left
);
4919 read_cleanup (p
->right
);
4921 if (p
->type
== P_SYMBOL
&& p
->u
.rsym
.state
== USED
&& !p
->u
.rsym
.referenced
)
4924 /* Add hidden symbols to the symtree. */
4925 q
= get_integer (p
->u
.rsym
.ns
);
4926 ns
= (gfc_namespace
*) q
->u
.pointer
;
4928 if (!p
->u
.rsym
.sym
->attr
.vtype
4929 && !p
->u
.rsym
.sym
->attr
.vtab
)
4930 st
= gfc_get_unique_symtree (ns
);
4933 /* There is no reason to use 'unique_symtrees' for vtabs or
4934 vtypes - their name is fine for a symtree and reduces the
4935 namespace pollution. */
4936 st
= gfc_find_symtree (ns
->sym_root
, p
->u
.rsym
.sym
->name
);
4938 st
= gfc_new_symtree (&ns
->sym_root
, p
->u
.rsym
.sym
->name
);
4941 st
->n
.sym
= p
->u
.rsym
.sym
;
4944 /* Fixup any symtree references. */
4945 p
->u
.rsym
.symtree
= st
;
4946 resolve_fixups (p
->u
.rsym
.stfixup
, st
);
4947 p
->u
.rsym
.stfixup
= NULL
;
4950 /* Free unused symbols. */
4951 if (p
->type
== P_SYMBOL
&& p
->u
.rsym
.state
== UNUSED
)
4952 gfc_free_symbol (p
->u
.rsym
.sym
);
4956 /* It is not quite enough to check for ambiguity in the symbols by
4957 the loaded symbol and the new symbol not being identical. */
4959 check_for_ambiguous (gfc_symtree
*st
, pointer_info
*info
)
4963 symbol_attribute attr
;
4966 if (gfc_current_ns
->proc_name
&& st
->name
== gfc_current_ns
->proc_name
->name
)
4968 gfc_error ("%qs of module %qs, imported at %C, is also the name of the "
4969 "current program unit", st
->name
, module_name
);
4974 rsym
= info
->u
.rsym
.sym
;
4978 if (st_sym
->attr
.vtab
|| st_sym
->attr
.vtype
)
4981 /* If the existing symbol is generic from a different module and
4982 the new symbol is generic there can be no ambiguity. */
4983 if (st_sym
->attr
.generic
4985 && st_sym
->module
!= module_name
)
4987 /* The new symbol's attributes have not yet been read. Since
4988 we need attr.generic, read it directly. */
4989 get_module_locus (&locus
);
4990 set_module_locus (&info
->u
.rsym
.where
);
4993 mio_symbol_attribute (&attr
);
4994 set_module_locus (&locus
);
5003 /* Read a module file. */
5008 module_locus operator_interfaces
, user_operators
, omp_udrs
;
5010 char name
[GFC_MAX_SYMBOL_LEN
+ 1];
5012 /* Workaround -Wmaybe-uninitialized false positive during
5013 profiledbootstrap by initializing them. */
5014 int ambiguous
= 0, j
, nuse
, symbol
= 0;
5015 pointer_info
*info
, *q
;
5016 gfc_use_rename
*u
= NULL
;
5020 get_module_locus (&operator_interfaces
); /* Skip these for now. */
5023 get_module_locus (&user_operators
);
5027 /* Skip commons and equivalences for now. */
5031 /* Skip OpenMP UDRs. */
5032 get_module_locus (&omp_udrs
);
5037 /* Create the fixup nodes for all the symbols. */
5039 while (peek_atom () != ATOM_RPAREN
)
5042 require_atom (ATOM_INTEGER
);
5043 info
= get_integer (atom_int
);
5045 info
->type
= P_SYMBOL
;
5046 info
->u
.rsym
.state
= UNUSED
;
5048 info
->u
.rsym
.true_name
= read_string ();
5049 info
->u
.rsym
.module
= read_string ();
5050 bind_label
= read_string ();
5051 if (strlen (bind_label
))
5052 info
->u
.rsym
.binding_label
= bind_label
;
5054 XDELETEVEC (bind_label
);
5056 require_atom (ATOM_INTEGER
);
5057 info
->u
.rsym
.ns
= atom_int
;
5059 get_module_locus (&info
->u
.rsym
.where
);
5061 /* See if the symbol has already been loaded by a previous module.
5062 If so, we reference the existing symbol and prevent it from
5063 being loaded again. This should not happen if the symbol being
5064 read is an index for an assumed shape dummy array (ns != 1). */
5066 sym
= find_true_name (info
->u
.rsym
.true_name
, info
->u
.rsym
.module
);
5069 || (sym
->attr
.flavor
== FL_VARIABLE
&& info
->u
.rsym
.ns
!=1))
5075 info
->u
.rsym
.state
= USED
;
5076 info
->u
.rsym
.sym
= sym
;
5077 /* The current symbol has already been loaded, so we can avoid loading
5078 it again. However, if it is a derived type, some of its components
5079 can be used in expressions in the module. To avoid the module loading
5080 failing, we need to associate the module's component pointer indexes
5081 with the existing symbol's component pointers. */
5082 if (gfc_fl_struct (sym
->attr
.flavor
))
5086 /* First seek to the symbol's component list. */
5087 mio_lparen (); /* symbol opening. */
5088 skip_list (); /* skip symbol attribute. */
5090 mio_lparen (); /* component list opening. */
5091 for (c
= sym
->components
; c
; c
= c
->next
)
5094 const char *comp_name
;
5097 mio_lparen (); /* component opening. */
5099 p
= get_integer (n
);
5100 if (p
->u
.pointer
== NULL
)
5101 associate_integer_pointer (p
, c
);
5102 mio_pool_string (&comp_name
);
5103 gcc_assert (comp_name
== c
->name
);
5104 skip_list (1); /* component end. */
5106 mio_rparen (); /* component list closing. */
5108 skip_list (1); /* symbol end. */
5113 /* Some symbols do not have a namespace (eg. formal arguments),
5114 so the automatic "unique symtree" mechanism must be suppressed
5115 by marking them as referenced. */
5116 q
= get_integer (info
->u
.rsym
.ns
);
5117 if (q
->u
.pointer
== NULL
)
5119 info
->u
.rsym
.referenced
= 1;
5123 /* If possible recycle the symtree that references the symbol.
5124 If a symtree is not found and the module does not import one,
5125 a unique-name symtree is found by read_cleanup. */
5126 st
= find_symtree_for_symbol (gfc_current_ns
->sym_root
, sym
);
5129 info
->u
.rsym
.symtree
= st
;
5130 info
->u
.rsym
.referenced
= 1;
5136 /* Parse the symtree lists. This lets us mark which symbols need to
5137 be loaded. Renaming is also done at this point by replacing the
5142 while (peek_atom () != ATOM_RPAREN
)
5144 mio_internal_string (name
);
5145 mio_integer (&ambiguous
);
5146 mio_integer (&symbol
);
5148 info
= get_integer (symbol
);
5150 /* See how many use names there are. If none, go through the start
5151 of the loop at least once. */
5152 nuse
= number_use_names (name
, false);
5153 info
->u
.rsym
.renamed
= nuse
? 1 : 0;
5158 for (j
= 1; j
<= nuse
; j
++)
5160 /* Get the jth local name for this symbol. */
5161 p
= find_use_name_n (name
, &j
, false);
5163 if (p
== NULL
&& strcmp (name
, module_name
) == 0)
5166 /* Exception: Always import vtabs & vtypes. */
5167 if (p
== NULL
&& name
[0] == '_'
5168 && (strncmp (name
, "__vtab_", 5) == 0
5169 || strncmp (name
, "__vtype_", 6) == 0))
5172 /* Skip symtree nodes not in an ONLY clause, unless there
5173 is an existing symtree loaded from another USE statement. */
5176 st
= gfc_find_symtree (gfc_current_ns
->sym_root
, name
);
5178 && strcmp (st
->n
.sym
->name
, info
->u
.rsym
.true_name
) == 0
5179 && st
->n
.sym
->module
!= NULL
5180 && strcmp (st
->n
.sym
->module
, info
->u
.rsym
.module
) == 0)
5182 info
->u
.rsym
.symtree
= st
;
5183 info
->u
.rsym
.sym
= st
->n
.sym
;
5188 /* If a symbol of the same name and module exists already,
5189 this symbol, which is not in an ONLY clause, must not be
5190 added to the namespace(11.3.2). Note that find_symbol
5191 only returns the first occurrence that it finds. */
5192 if (!only_flag
&& !info
->u
.rsym
.renamed
5193 && strcmp (name
, module_name
) != 0
5194 && find_symbol (gfc_current_ns
->sym_root
, name
,
5198 st
= gfc_find_symtree (gfc_current_ns
->sym_root
, p
);
5201 && !(st
->n
.sym
&& st
->n
.sym
->attr
.used_in_submodule
))
5203 /* Check for ambiguous symbols. */
5204 if (check_for_ambiguous (st
, info
))
5207 info
->u
.rsym
.symtree
= st
;
5213 /* This symbol is host associated from a module in a
5214 submodule. Hide it with a unique symtree. */
5215 gfc_symtree
*s
= gfc_get_unique_symtree (gfc_current_ns
);
5216 s
->n
.sym
= st
->n
.sym
;
5221 /* Create a symtree node in the current namespace for this
5223 st
= check_unique_name (p
)
5224 ? gfc_get_unique_symtree (gfc_current_ns
)
5225 : gfc_new_symtree (&gfc_current_ns
->sym_root
, p
);
5226 st
->ambiguous
= ambiguous
;
5229 sym
= info
->u
.rsym
.sym
;
5231 /* Create a symbol node if it doesn't already exist. */
5234 info
->u
.rsym
.sym
= gfc_new_symbol (info
->u
.rsym
.true_name
,
5236 info
->u
.rsym
.sym
->name
= gfc_dt_lower_string (info
->u
.rsym
.true_name
);
5237 sym
= info
->u
.rsym
.sym
;
5238 sym
->module
= gfc_get_string ("%s", info
->u
.rsym
.module
);
5240 if (info
->u
.rsym
.binding_label
)
5242 tree id
= get_identifier (info
->u
.rsym
.binding_label
);
5243 sym
->binding_label
= IDENTIFIER_POINTER (id
);
5250 if (strcmp (name
, p
) != 0)
5251 sym
->attr
.use_rename
= 1;
5254 || (strncmp (name
, "__vtab_", 5) != 0
5255 && strncmp (name
, "__vtype_", 6) != 0))
5256 sym
->attr
.use_only
= only_flag
;
5258 /* Store the symtree pointing to this symbol. */
5259 info
->u
.rsym
.symtree
= st
;
5261 if (info
->u
.rsym
.state
== UNUSED
)
5262 info
->u
.rsym
.state
= NEEDED
;
5263 info
->u
.rsym
.referenced
= 1;
5270 /* Load intrinsic operator interfaces. */
5271 set_module_locus (&operator_interfaces
);
5274 for (i
= GFC_INTRINSIC_BEGIN
; i
!= GFC_INTRINSIC_END
; i
++)
5276 if (i
== INTRINSIC_USER
)
5281 u
= find_use_operator ((gfc_intrinsic_op
) i
);
5292 mio_interface (&gfc_current_ns
->op
[i
]);
5293 if (u
&& !gfc_current_ns
->op
[i
])
5299 /* Load generic and user operator interfaces. These must follow the
5300 loading of symtree because otherwise symbols can be marked as
5303 set_module_locus (&user_operators
);
5305 load_operator_interfaces ();
5306 load_generic_interfaces ();
5311 /* Load OpenMP user defined reductions. */
5312 set_module_locus (&omp_udrs
);
5315 /* At this point, we read those symbols that are needed but haven't
5316 been loaded yet. If one symbol requires another, the other gets
5317 marked as NEEDED if its previous state was UNUSED. */
5319 while (load_needed (pi_root
));
5321 /* Make sure all elements of the rename-list were found in the module. */
5323 for (u
= gfc_rename_list
; u
; u
= u
->next
)
5328 if (u
->op
== INTRINSIC_NONE
)
5330 gfc_error ("Symbol %qs referenced at %L not found in module %qs",
5331 u
->use_name
, &u
->where
, module_name
);
5335 if (u
->op
== INTRINSIC_USER
)
5337 gfc_error ("User operator %qs referenced at %L not found "
5338 "in module %qs", u
->use_name
, &u
->where
, module_name
);
5342 gfc_error ("Intrinsic operator %qs referenced at %L not found "
5343 "in module %qs", gfc_op2string (u
->op
), &u
->where
,
5347 /* Clean up symbol nodes that were never loaded, create references
5348 to hidden symbols. */
5350 read_cleanup (pi_root
);
5354 /* Given an access type that is specific to an entity and the default
5355 access, return nonzero if the entity is publicly accessible. If the
5356 element is declared as PUBLIC, then it is public; if declared
5357 PRIVATE, then private, and otherwise it is public unless the default
5358 access in this context has been declared PRIVATE. */
5360 static bool dump_smod
= false;
5363 check_access (gfc_access specific_access
, gfc_access default_access
)
5368 if (specific_access
== ACCESS_PUBLIC
)
5370 if (specific_access
== ACCESS_PRIVATE
)
5373 if (flag_module_private
)
5374 return default_access
== ACCESS_PUBLIC
;
5376 return default_access
!= ACCESS_PRIVATE
;
5381 gfc_check_symbol_access (gfc_symbol
*sym
)
5383 if (sym
->attr
.vtab
|| sym
->attr
.vtype
)
5386 return check_access (sym
->attr
.access
, sym
->ns
->default_access
);
5390 /* A structure to remember which commons we've already written. */
5392 struct written_common
5394 BBT_HEADER(written_common
);
5395 const char *name
, *label
;
5398 static struct written_common
*written_commons
= NULL
;
5400 /* Comparison function used for balancing the binary tree. */
5403 compare_written_commons (void *a1
, void *b1
)
5405 const char *aname
= ((struct written_common
*) a1
)->name
;
5406 const char *alabel
= ((struct written_common
*) a1
)->label
;
5407 const char *bname
= ((struct written_common
*) b1
)->name
;
5408 const char *blabel
= ((struct written_common
*) b1
)->label
;
5409 int c
= strcmp (aname
, bname
);
5411 return (c
!= 0 ? c
: strcmp (alabel
, blabel
));
5414 /* Free a list of written commons. */
5417 free_written_common (struct written_common
*w
)
5423 free_written_common (w
->left
);
5425 free_written_common (w
->right
);
5430 /* Write a common block to the module -- recursive helper function. */
5433 write_common_0 (gfc_symtree
*st
, bool this_module
)
5439 struct written_common
*w
;
5440 bool write_me
= true;
5445 write_common_0 (st
->left
, this_module
);
5447 /* We will write out the binding label, or "" if no label given. */
5448 name
= st
->n
.common
->name
;
5450 label
= (p
->is_bind_c
&& p
->binding_label
) ? p
->binding_label
: "";
5452 /* Check if we've already output this common. */
5453 w
= written_commons
;
5456 int c
= strcmp (name
, w
->name
);
5457 c
= (c
!= 0 ? c
: strcmp (label
, w
->label
));
5461 w
= (c
< 0) ? w
->left
: w
->right
;
5464 if (this_module
&& p
->use_assoc
)
5469 /* Write the common to the module. */
5471 mio_pool_string (&name
);
5473 mio_symbol_ref (&p
->head
);
5474 flags
= p
->saved
? 1 : 0;
5475 if (p
->threadprivate
)
5477 mio_integer (&flags
);
5479 /* Write out whether the common block is bind(c) or not. */
5480 mio_integer (&(p
->is_bind_c
));
5482 mio_pool_string (&label
);
5485 /* Record that we have written this common. */
5486 w
= XCNEW (struct written_common
);
5489 gfc_insert_bbt (&written_commons
, w
, compare_written_commons
);
5492 write_common_0 (st
->right
, this_module
);
5496 /* Write a common, by initializing the list of written commons, calling
5497 the recursive function write_common_0() and cleaning up afterwards. */
5500 write_common (gfc_symtree
*st
)
5502 written_commons
= NULL
;
5503 write_common_0 (st
, true);
5504 write_common_0 (st
, false);
5505 free_written_common (written_commons
);
5506 written_commons
= NULL
;
5510 /* Write the blank common block to the module. */
5513 write_blank_common (void)
5515 const char * name
= BLANK_COMMON_NAME
;
5517 /* TODO: Blank commons are not bind(c). The F2003 standard probably says
5518 this, but it hasn't been checked. Just making it so for now. */
5521 if (gfc_current_ns
->blank_common
.head
== NULL
)
5526 mio_pool_string (&name
);
5528 mio_symbol_ref (&gfc_current_ns
->blank_common
.head
);
5529 saved
= gfc_current_ns
->blank_common
.saved
;
5530 mio_integer (&saved
);
5532 /* Write out whether the common block is bind(c) or not. */
5533 mio_integer (&is_bind_c
);
5535 /* Write out an empty binding label. */
5536 write_atom (ATOM_STRING
, "");
5542 /* Write equivalences to the module. */
5551 for (eq
= gfc_current_ns
->equiv
; eq
; eq
= eq
->next
)
5555 for (e
= eq
; e
; e
= e
->eq
)
5557 if (e
->module
== NULL
)
5558 e
->module
= gfc_get_string ("%s.eq.%d", module_name
, num
);
5559 mio_allocated_string (e
->module
);
5560 mio_expr (&e
->expr
);
5569 /* Write a symbol to the module. */
5572 write_symbol (int n
, gfc_symbol
*sym
)
5576 if (sym
->attr
.flavor
== FL_UNKNOWN
|| sym
->attr
.flavor
== FL_LABEL
)
5577 gfc_internal_error ("write_symbol(): bad module symbol %qs", sym
->name
);
5581 if (gfc_fl_struct (sym
->attr
.flavor
))
5584 name
= gfc_dt_upper_string (sym
->name
);
5585 mio_pool_string (&name
);
5588 mio_pool_string (&sym
->name
);
5590 mio_pool_string (&sym
->module
);
5591 if ((sym
->attr
.is_bind_c
|| sym
->attr
.is_iso_c
) && sym
->binding_label
)
5593 label
= sym
->binding_label
;
5594 mio_pool_string (&label
);
5597 write_atom (ATOM_STRING
, "");
5599 mio_pointer_ref (&sym
->ns
);
5606 /* Recursive traversal function to write the initial set of symbols to
5607 the module. We check to see if the symbol should be written
5608 according to the access specification. */
5611 write_symbol0 (gfc_symtree
*st
)
5615 bool dont_write
= false;
5620 write_symbol0 (st
->left
);
5623 if (sym
->module
== NULL
)
5624 sym
->module
= module_name
;
5626 if (sym
->attr
.flavor
== FL_PROCEDURE
&& sym
->attr
.generic
5627 && !sym
->attr
.subroutine
&& !sym
->attr
.function
)
5630 if (!gfc_check_symbol_access (sym
))
5635 p
= get_pointer (sym
);
5636 if (p
->type
== P_UNKNOWN
)
5639 if (p
->u
.wsym
.state
!= WRITTEN
)
5641 write_symbol (p
->integer
, sym
);
5642 p
->u
.wsym
.state
= WRITTEN
;
5646 write_symbol0 (st
->right
);
5651 write_omp_udr (gfc_omp_udr
*udr
)
5655 case OMP_REDUCTION_USER
:
5656 /* Non-operators can't be used outside of the module. */
5657 if (udr
->name
[0] != '.')
5662 size_t len
= strlen (udr
->name
+ 1);
5663 char *name
= XALLOCAVEC (char, len
);
5664 memcpy (name
, udr
->name
, len
- 1);
5665 name
[len
- 1] = '\0';
5666 st
= gfc_find_symtree (gfc_current_ns
->uop_root
, name
);
5667 /* If corresponding user operator is private, don't write
5671 gfc_user_op
*uop
= st
->n
.uop
;
5672 if (!check_access (uop
->access
, uop
->ns
->default_access
))
5677 case OMP_REDUCTION_PLUS
:
5678 case OMP_REDUCTION_MINUS
:
5679 case OMP_REDUCTION_TIMES
:
5680 case OMP_REDUCTION_AND
:
5681 case OMP_REDUCTION_OR
:
5682 case OMP_REDUCTION_EQV
:
5683 case OMP_REDUCTION_NEQV
:
5684 /* If corresponding operator is private, don't write the UDR. */
5685 if (!check_access (gfc_current_ns
->operator_access
[udr
->rop
],
5686 gfc_current_ns
->default_access
))
5692 if (udr
->ts
.type
== BT_DERIVED
|| udr
->ts
.type
== BT_CLASS
)
5694 /* If derived type is private, don't write the UDR. */
5695 if (!gfc_check_symbol_access (udr
->ts
.u
.derived
))
5700 mio_pool_string (&udr
->name
);
5701 mio_typespec (&udr
->ts
);
5702 mio_omp_udr_expr (udr
, &udr
->omp_out
, &udr
->omp_in
, udr
->combiner_ns
, false);
5703 if (udr
->initializer_ns
)
5704 mio_omp_udr_expr (udr
, &udr
->omp_priv
, &udr
->omp_orig
,
5705 udr
->initializer_ns
, true);
5711 write_omp_udrs (gfc_symtree
*st
)
5716 write_omp_udrs (st
->left
);
5718 for (udr
= st
->n
.omp_udr
; udr
; udr
= udr
->next
)
5719 write_omp_udr (udr
);
5720 write_omp_udrs (st
->right
);
5724 /* Type for the temporary tree used when writing secondary symbols. */
5726 struct sorted_pointer_info
5728 BBT_HEADER (sorted_pointer_info
);
5733 #define gfc_get_sorted_pointer_info() XCNEW (sorted_pointer_info)
5735 /* Recursively traverse the temporary tree, free its contents. */
5738 free_sorted_pointer_info_tree (sorted_pointer_info
*p
)
5743 free_sorted_pointer_info_tree (p
->left
);
5744 free_sorted_pointer_info_tree (p
->right
);
5749 /* Comparison function for the temporary tree. */
5752 compare_sorted_pointer_info (void *_spi1
, void *_spi2
)
5754 sorted_pointer_info
*spi1
, *spi2
;
5755 spi1
= (sorted_pointer_info
*)_spi1
;
5756 spi2
= (sorted_pointer_info
*)_spi2
;
5758 if (spi1
->p
->integer
< spi2
->p
->integer
)
5760 if (spi1
->p
->integer
> spi2
->p
->integer
)
5766 /* Finds the symbols that need to be written and collects them in the
5767 sorted_pi tree so that they can be traversed in an order
5768 independent of memory addresses. */
5771 find_symbols_to_write(sorted_pointer_info
**tree
, pointer_info
*p
)
5776 if (p
->type
== P_SYMBOL
&& p
->u
.wsym
.state
== NEEDS_WRITE
)
5778 sorted_pointer_info
*sp
= gfc_get_sorted_pointer_info();
5781 gfc_insert_bbt (tree
, sp
, compare_sorted_pointer_info
);
5784 find_symbols_to_write (tree
, p
->left
);
5785 find_symbols_to_write (tree
, p
->right
);
5789 /* Recursive function that traverses the tree of symbols that need to be
5790 written and writes them in order. */
5793 write_symbol1_recursion (sorted_pointer_info
*sp
)
5798 write_symbol1_recursion (sp
->left
);
5800 pointer_info
*p1
= sp
->p
;
5801 gcc_assert (p1
->type
== P_SYMBOL
&& p1
->u
.wsym
.state
== NEEDS_WRITE
);
5803 p1
->u
.wsym
.state
= WRITTEN
;
5804 write_symbol (p1
->integer
, p1
->u
.wsym
.sym
);
5805 p1
->u
.wsym
.sym
->attr
.public_used
= 1;
5807 write_symbol1_recursion (sp
->right
);
5811 /* Write the secondary set of symbols to the module file. These are
5812 symbols that were not public yet are needed by the public symbols
5813 or another dependent symbol. The act of writing a symbol can add
5814 symbols to the pointer_info tree, so we return nonzero if a symbol
5815 was written and pass that information upwards. The caller will
5816 then call this function again until nothing was written. It uses
5817 the utility functions and a temporary tree to ensure a reproducible
5818 ordering of the symbol output and thus the module file. */
5821 write_symbol1 (pointer_info
*p
)
5826 /* Put symbols that need to be written into a tree sorted on the
5829 sorted_pointer_info
*spi_root
= NULL
;
5830 find_symbols_to_write (&spi_root
, p
);
5832 /* No symbols to write, return. */
5836 /* Otherwise, write and free the tree again. */
5837 write_symbol1_recursion (spi_root
);
5838 free_sorted_pointer_info_tree (spi_root
);
5844 /* Write operator interfaces associated with a symbol. */
5847 write_operator (gfc_user_op
*uop
)
5849 static char nullstring
[] = "";
5850 const char *p
= nullstring
;
5852 if (uop
->op
== NULL
|| !check_access (uop
->access
, uop
->ns
->default_access
))
5855 mio_symbol_interface (&uop
->name
, &p
, &uop
->op
);
5859 /* Write generic interfaces from the namespace sym_root. */
5862 write_generic (gfc_symtree
*st
)
5869 write_generic (st
->left
);
5872 if (sym
&& !check_unique_name (st
->name
)
5873 && sym
->generic
&& gfc_check_symbol_access (sym
))
5876 sym
->module
= module_name
;
5878 mio_symbol_interface (&st
->name
, &sym
->module
, &sym
->generic
);
5881 write_generic (st
->right
);
5886 write_symtree (gfc_symtree
*st
)
5893 /* A symbol in an interface body must not be visible in the
5895 if (sym
->ns
!= gfc_current_ns
5896 && sym
->ns
->proc_name
5897 && sym
->ns
->proc_name
->attr
.if_source
== IFSRC_IFBODY
)
5900 if (!gfc_check_symbol_access (sym
)
5901 || (sym
->attr
.flavor
== FL_PROCEDURE
&& sym
->attr
.generic
5902 && !sym
->attr
.subroutine
&& !sym
->attr
.function
))
5905 if (check_unique_name (st
->name
))
5908 p
= find_pointer (sym
);
5910 gfc_internal_error ("write_symtree(): Symbol not written");
5912 mio_pool_string (&st
->name
);
5913 mio_integer (&st
->ambiguous
);
5914 mio_integer (&p
->integer
);
5923 /* Write the operator interfaces. */
5926 for (i
= GFC_INTRINSIC_BEGIN
; i
!= GFC_INTRINSIC_END
; i
++)
5928 if (i
== INTRINSIC_USER
)
5931 mio_interface (check_access (gfc_current_ns
->operator_access
[i
],
5932 gfc_current_ns
->default_access
)
5933 ? &gfc_current_ns
->op
[i
] : NULL
);
5941 gfc_traverse_user_op (gfc_current_ns
, write_operator
);
5947 write_generic (gfc_current_ns
->sym_root
);
5953 write_blank_common ();
5954 write_common (gfc_current_ns
->common_root
);
5966 write_omp_udrs (gfc_current_ns
->omp_udr_root
);
5971 /* Write symbol information. First we traverse all symbols in the
5972 primary namespace, writing those that need to be written.
5973 Sometimes writing one symbol will cause another to need to be
5974 written. A list of these symbols ends up on the write stack, and
5975 we end by popping the bottom of the stack and writing the symbol
5976 until the stack is empty. */
5980 write_symbol0 (gfc_current_ns
->sym_root
);
5981 while (write_symbol1 (pi_root
))
5990 gfc_traverse_symtree (gfc_current_ns
->sym_root
, write_symtree
);
5995 /* Read a CRC32 sum from the gzip trailer of a module file. Returns
5996 true on success, false on failure. */
5999 read_crc32_from_module_file (const char* filename
, uLong
* crc
)
6005 /* Open the file in binary mode. */
6006 if ((file
= fopen (filename
, "rb")) == NULL
)
6009 /* The gzip crc32 value is found in the [END-8, END-4] bytes of the
6010 file. See RFC 1952. */
6011 if (fseek (file
, -8, SEEK_END
) != 0)
6017 /* Read the CRC32. */
6018 if (fread (buf
, 1, 4, file
) != 4)
6024 /* Close the file. */
6027 val
= (buf
[0] & 0xFF) + ((buf
[1] & 0xFF) << 8) + ((buf
[2] & 0xFF) << 16)
6028 + ((buf
[3] & 0xFF) << 24);
6031 /* For debugging, the CRC value printed in hexadecimal should match
6032 the CRC printed by "zcat -l -v filename".
6033 printf("CRC of file %s is %x\n", filename, val); */
6039 /* Given module, dump it to disk. If there was an error while
6040 processing the module, dump_flag will be set to zero and we delete
6041 the module file, even if it was already there. */
6044 dump_module (const char *name
, int dump_flag
)
6047 char *filename
, *filename_tmp
;
6050 module_name
= gfc_get_string ("%s", name
);
6054 name
= submodule_name
;
6055 n
= strlen (name
) + strlen (SUBMODULE_EXTENSION
) + 1;
6058 n
= strlen (name
) + strlen (MODULE_EXTENSION
) + 1;
6060 if (gfc_option
.module_dir
!= NULL
)
6062 n
+= strlen (gfc_option
.module_dir
);
6063 filename
= (char *) alloca (n
);
6064 strcpy (filename
, gfc_option
.module_dir
);
6065 strcat (filename
, name
);
6069 filename
= (char *) alloca (n
);
6070 strcpy (filename
, name
);
6074 strcat (filename
, SUBMODULE_EXTENSION
);
6076 strcat (filename
, MODULE_EXTENSION
);
6078 /* Name of the temporary file used to write the module. */
6079 filename_tmp
= (char *) alloca (n
+ 1);
6080 strcpy (filename_tmp
, filename
);
6081 strcat (filename_tmp
, "0");
6083 /* There was an error while processing the module. We delete the
6084 module file, even if it was already there. */
6091 if (gfc_cpp_makedep ())
6092 gfc_cpp_add_target (filename
);
6094 /* Write the module to the temporary file. */
6095 module_fp
= gzopen (filename_tmp
, "w");
6096 if (module_fp
== NULL
)
6097 gfc_fatal_error ("Can't open module file %qs for writing at %C: %s",
6098 filename_tmp
, xstrerror (errno
));
6100 gzprintf (module_fp
, "GFORTRAN module version '%s' created from %s\n",
6101 MOD_VERSION
, gfc_source_file
);
6103 /* Write the module itself. */
6110 free_pi_tree (pi_root
);
6115 if (gzclose (module_fp
))
6116 gfc_fatal_error ("Error writing module file %qs for writing: %s",
6117 filename_tmp
, xstrerror (errno
));
6119 /* Read the CRC32 from the gzip trailers of the module files and
6121 if (!read_crc32_from_module_file (filename_tmp
, &crc
)
6122 || !read_crc32_from_module_file (filename
, &crc_old
)
6125 /* Module file have changed, replace the old one. */
6126 if (remove (filename
) && errno
!= ENOENT
)
6127 gfc_fatal_error ("Can't delete module file %qs: %s", filename
,
6129 if (rename (filename_tmp
, filename
))
6130 gfc_fatal_error ("Can't rename module file %qs to %qs: %s",
6131 filename_tmp
, filename
, xstrerror (errno
));
6135 if (remove (filename_tmp
))
6136 gfc_fatal_error ("Can't delete temporary module file %qs: %s",
6137 filename_tmp
, xstrerror (errno
));
6143 gfc_dump_module (const char *name
, int dump_flag
)
6145 if (gfc_state_stack
->state
== COMP_SUBMODULE
)
6150 no_module_procedures
= true;
6151 dump_module (name
, dump_flag
);
6153 if (no_module_procedures
|| dump_smod
)
6156 /* Write a submodule file from a module. The 'dump_smod' flag switches
6157 off the check for PRIVATE entities. */
6159 submodule_name
= module_name
;
6160 dump_module (name
, dump_flag
);
6165 create_intrinsic_function (const char *name
, int id
,
6166 const char *modname
, intmod_id module
,
6167 bool subroutine
, gfc_symbol
*result_type
)
6169 gfc_intrinsic_sym
*isym
;
6170 gfc_symtree
*tmp_symtree
;
6173 tmp_symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, name
);
6176 if (tmp_symtree
->n
.sym
&& tmp_symtree
->n
.sym
->module
6177 && strcmp (modname
, tmp_symtree
->n
.sym
->module
) == 0)
6179 gfc_error ("Symbol %qs at %C already declared", name
);
6183 gfc_get_sym_tree (name
, gfc_current_ns
, &tmp_symtree
, false);
6184 sym
= tmp_symtree
->n
.sym
;
6188 gfc_isym_id isym_id
= gfc_isym_id_by_intmod (module
, id
);
6189 isym
= gfc_intrinsic_subroutine_by_id (isym_id
);
6190 sym
->attr
.subroutine
= 1;
6194 gfc_isym_id isym_id
= gfc_isym_id_by_intmod (module
, id
);
6195 isym
= gfc_intrinsic_function_by_id (isym_id
);
6197 sym
->attr
.function
= 1;
6200 sym
->ts
.type
= BT_DERIVED
;
6201 sym
->ts
.u
.derived
= result_type
;
6202 sym
->ts
.is_c_interop
= 1;
6203 isym
->ts
.f90_type
= BT_VOID
;
6204 isym
->ts
.type
= BT_DERIVED
;
6205 isym
->ts
.f90_type
= BT_VOID
;
6206 isym
->ts
.u
.derived
= result_type
;
6207 isym
->ts
.is_c_interop
= 1;
6212 sym
->attr
.flavor
= FL_PROCEDURE
;
6213 sym
->attr
.intrinsic
= 1;
6215 sym
->module
= gfc_get_string ("%s", modname
);
6216 sym
->attr
.use_assoc
= 1;
6217 sym
->from_intmod
= module
;
6218 sym
->intmod_sym_id
= id
;
6222 /* Import the intrinsic ISO_C_BINDING module, generating symbols in
6223 the current namespace for all named constants, pointer types, and
6224 procedures in the module unless the only clause was used or a rename
6225 list was provided. */
6228 import_iso_c_binding_module (void)
6230 gfc_symbol
*mod_sym
= NULL
, *return_type
;
6231 gfc_symtree
*mod_symtree
= NULL
, *tmp_symtree
;
6232 gfc_symtree
*c_ptr
= NULL
, *c_funptr
= NULL
;
6233 const char *iso_c_module_name
= "__iso_c_binding";
6236 bool want_c_ptr
= false, want_c_funptr
= false;
6238 /* Look only in the current namespace. */
6239 mod_symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, iso_c_module_name
);
6241 if (mod_symtree
== NULL
)
6243 /* symtree doesn't already exist in current namespace. */
6244 gfc_get_sym_tree (iso_c_module_name
, gfc_current_ns
, &mod_symtree
,
6247 if (mod_symtree
!= NULL
)
6248 mod_sym
= mod_symtree
->n
.sym
;
6250 gfc_internal_error ("import_iso_c_binding_module(): Unable to "
6251 "create symbol for %s", iso_c_module_name
);
6253 mod_sym
->attr
.flavor
= FL_MODULE
;
6254 mod_sym
->attr
.intrinsic
= 1;
6255 mod_sym
->module
= gfc_get_string ("%s", iso_c_module_name
);
6256 mod_sym
->from_intmod
= INTMOD_ISO_C_BINDING
;
6259 /* Check whether C_PTR or C_FUNPTR are in the include list, if so, load it;
6260 check also whether C_NULL_(FUN)PTR or C_(FUN)LOC are requested, which
6262 for (u
= gfc_rename_list
; u
; u
= u
->next
)
6264 if (strcmp (c_interop_kinds_table
[ISOCBINDING_NULL_PTR
].name
,
6267 else if (strcmp (c_interop_kinds_table
[ISOCBINDING_LOC
].name
,
6270 else if (strcmp (c_interop_kinds_table
[ISOCBINDING_NULL_FUNPTR
].name
,
6272 want_c_funptr
= true;
6273 else if (strcmp (c_interop_kinds_table
[ISOCBINDING_FUNLOC
].name
,
6275 want_c_funptr
= true;
6276 else if (strcmp (c_interop_kinds_table
[ISOCBINDING_PTR
].name
,
6279 c_ptr
= generate_isocbinding_symbol (iso_c_module_name
,
6280 (iso_c_binding_symbol
)
6282 u
->local_name
[0] ? u
->local_name
6286 else if (strcmp (c_interop_kinds_table
[ISOCBINDING_FUNPTR
].name
,
6290 = generate_isocbinding_symbol (iso_c_module_name
,
6291 (iso_c_binding_symbol
)
6293 u
->local_name
[0] ? u
->local_name
6299 if ((want_c_ptr
|| !only_flag
) && !c_ptr
)
6300 c_ptr
= generate_isocbinding_symbol (iso_c_module_name
,
6301 (iso_c_binding_symbol
)
6303 NULL
, NULL
, only_flag
);
6304 if ((want_c_funptr
|| !only_flag
) && !c_funptr
)
6305 c_funptr
= generate_isocbinding_symbol (iso_c_module_name
,
6306 (iso_c_binding_symbol
)
6308 NULL
, NULL
, only_flag
);
6310 /* Generate the symbols for the named constants representing
6311 the kinds for intrinsic data types. */
6312 for (i
= 0; i
< ISOCBINDING_NUMBER
; i
++)
6315 for (u
= gfc_rename_list
; u
; u
= u
->next
)
6316 if (strcmp (c_interop_kinds_table
[i
].name
, u
->use_name
) == 0)
6325 #define NAMED_FUNCTION(a,b,c,d) \
6327 not_in_std = (gfc_option.allow_std & d) == 0; \
6330 #define NAMED_SUBROUTINE(a,b,c,d) \
6332 not_in_std = (gfc_option.allow_std & d) == 0; \
6335 #define NAMED_INTCST(a,b,c,d) \
6337 not_in_std = (gfc_option.allow_std & d) == 0; \
6340 #define NAMED_REALCST(a,b,c,d) \
6342 not_in_std = (gfc_option.allow_std & d) == 0; \
6345 #define NAMED_CMPXCST(a,b,c,d) \
6347 not_in_std = (gfc_option.allow_std & d) == 0; \
6350 #include "iso-c-binding.def"
6358 gfc_error ("The symbol %qs, referenced at %L, is not "
6359 "in the selected standard", name
, &u
->where
);
6365 #define NAMED_FUNCTION(a,b,c,d) \
6367 if (a == ISOCBINDING_LOC) \
6368 return_type = c_ptr->n.sym; \
6369 else if (a == ISOCBINDING_FUNLOC) \
6370 return_type = c_funptr->n.sym; \
6372 return_type = NULL; \
6373 create_intrinsic_function (u->local_name[0] \
6374 ? u->local_name : u->use_name, \
6375 a, iso_c_module_name, \
6376 INTMOD_ISO_C_BINDING, false, \
6379 #define NAMED_SUBROUTINE(a,b,c,d) \
6381 create_intrinsic_function (u->local_name[0] ? u->local_name \
6383 a, iso_c_module_name, \
6384 INTMOD_ISO_C_BINDING, true, NULL); \
6386 #include "iso-c-binding.def"
6388 case ISOCBINDING_PTR
:
6389 case ISOCBINDING_FUNPTR
:
6390 /* Already handled above. */
6393 if (i
== ISOCBINDING_NULL_PTR
)
6394 tmp_symtree
= c_ptr
;
6395 else if (i
== ISOCBINDING_NULL_FUNPTR
)
6396 tmp_symtree
= c_funptr
;
6399 generate_isocbinding_symbol (iso_c_module_name
,
6400 (iso_c_binding_symbol
) i
,
6402 ? u
->local_name
: u
->use_name
,
6403 tmp_symtree
, false);
6407 if (!found
&& !only_flag
)
6409 /* Skip, if the symbol is not in the enabled standard. */
6412 #define NAMED_FUNCTION(a,b,c,d) \
6414 if ((gfc_option.allow_std & d) == 0) \
6417 #define NAMED_SUBROUTINE(a,b,c,d) \
6419 if ((gfc_option.allow_std & d) == 0) \
6422 #define NAMED_INTCST(a,b,c,d) \
6424 if ((gfc_option.allow_std & d) == 0) \
6427 #define NAMED_REALCST(a,b,c,d) \
6429 if ((gfc_option.allow_std & d) == 0) \
6432 #define NAMED_CMPXCST(a,b,c,d) \
6434 if ((gfc_option.allow_std & d) == 0) \
6437 #include "iso-c-binding.def"
6439 ; /* Not GFC_STD_* versioned. */
6444 #define NAMED_FUNCTION(a,b,c,d) \
6446 if (a == ISOCBINDING_LOC) \
6447 return_type = c_ptr->n.sym; \
6448 else if (a == ISOCBINDING_FUNLOC) \
6449 return_type = c_funptr->n.sym; \
6451 return_type = NULL; \
6452 create_intrinsic_function (b, a, iso_c_module_name, \
6453 INTMOD_ISO_C_BINDING, false, \
6456 #define NAMED_SUBROUTINE(a,b,c,d) \
6458 create_intrinsic_function (b, a, iso_c_module_name, \
6459 INTMOD_ISO_C_BINDING, true, NULL); \
6461 #include "iso-c-binding.def"
6463 case ISOCBINDING_PTR
:
6464 case ISOCBINDING_FUNPTR
:
6465 /* Already handled above. */
6468 if (i
== ISOCBINDING_NULL_PTR
)
6469 tmp_symtree
= c_ptr
;
6470 else if (i
== ISOCBINDING_NULL_FUNPTR
)
6471 tmp_symtree
= c_funptr
;
6474 generate_isocbinding_symbol (iso_c_module_name
,
6475 (iso_c_binding_symbol
) i
, NULL
,
6476 tmp_symtree
, false);
6481 for (u
= gfc_rename_list
; u
; u
= u
->next
)
6486 gfc_error ("Symbol %qs referenced at %L not found in intrinsic "
6487 "module ISO_C_BINDING", u
->use_name
, &u
->where
);
6492 /* Add an integer named constant from a given module. */
6495 create_int_parameter (const char *name
, int value
, const char *modname
,
6496 intmod_id module
, int id
)
6498 gfc_symtree
*tmp_symtree
;
6501 tmp_symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, name
);
6502 if (tmp_symtree
!= NULL
)
6504 if (strcmp (modname
, tmp_symtree
->n
.sym
->module
) == 0)
6507 gfc_error ("Symbol %qs already declared", name
);
6510 gfc_get_sym_tree (name
, gfc_current_ns
, &tmp_symtree
, false);
6511 sym
= tmp_symtree
->n
.sym
;
6513 sym
->module
= gfc_get_string ("%s", modname
);
6514 sym
->attr
.flavor
= FL_PARAMETER
;
6515 sym
->ts
.type
= BT_INTEGER
;
6516 sym
->ts
.kind
= gfc_default_integer_kind
;
6517 sym
->value
= gfc_get_int_expr (gfc_default_integer_kind
, NULL
, value
);
6518 sym
->attr
.use_assoc
= 1;
6519 sym
->from_intmod
= module
;
6520 sym
->intmod_sym_id
= id
;
6524 /* Value is already contained by the array constructor, but not
6528 create_int_parameter_array (const char *name
, int size
, gfc_expr
*value
,
6529 const char *modname
, intmod_id module
, int id
)
6531 gfc_symtree
*tmp_symtree
;
6534 tmp_symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, name
);
6535 if (tmp_symtree
!= NULL
)
6537 if (strcmp (modname
, tmp_symtree
->n
.sym
->module
) == 0)
6540 gfc_error ("Symbol %qs already declared", name
);
6543 gfc_get_sym_tree (name
, gfc_current_ns
, &tmp_symtree
, false);
6544 sym
= tmp_symtree
->n
.sym
;
6546 sym
->module
= gfc_get_string ("%s", modname
);
6547 sym
->attr
.flavor
= FL_PARAMETER
;
6548 sym
->ts
.type
= BT_INTEGER
;
6549 sym
->ts
.kind
= gfc_default_integer_kind
;
6550 sym
->attr
.use_assoc
= 1;
6551 sym
->from_intmod
= module
;
6552 sym
->intmod_sym_id
= id
;
6553 sym
->attr
.dimension
= 1;
6554 sym
->as
= gfc_get_array_spec ();
6556 sym
->as
->type
= AS_EXPLICIT
;
6557 sym
->as
->lower
[0] = gfc_get_int_expr (gfc_default_integer_kind
, NULL
, 1);
6558 sym
->as
->upper
[0] = gfc_get_int_expr (gfc_default_integer_kind
, NULL
, size
);
6561 sym
->value
->shape
= gfc_get_shape (1);
6562 mpz_init_set_ui (sym
->value
->shape
[0], size
);
6566 /* Add an derived type for a given module. */
6569 create_derived_type (const char *name
, const char *modname
,
6570 intmod_id module
, int id
)
6572 gfc_symtree
*tmp_symtree
;
6573 gfc_symbol
*sym
, *dt_sym
;
6574 gfc_interface
*intr
, *head
;
6576 tmp_symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, name
);
6577 if (tmp_symtree
!= NULL
)
6579 if (strcmp (modname
, tmp_symtree
->n
.sym
->module
) == 0)
6582 gfc_error ("Symbol %qs already declared", name
);
6585 gfc_get_sym_tree (name
, gfc_current_ns
, &tmp_symtree
, false);
6586 sym
= tmp_symtree
->n
.sym
;
6587 sym
->module
= gfc_get_string ("%s", modname
);
6588 sym
->from_intmod
= module
;
6589 sym
->intmod_sym_id
= id
;
6590 sym
->attr
.flavor
= FL_PROCEDURE
;
6591 sym
->attr
.function
= 1;
6592 sym
->attr
.generic
= 1;
6594 gfc_get_sym_tree (gfc_dt_upper_string (sym
->name
),
6595 gfc_current_ns
, &tmp_symtree
, false);
6596 dt_sym
= tmp_symtree
->n
.sym
;
6597 dt_sym
->name
= gfc_get_string ("%s", sym
->name
);
6598 dt_sym
->attr
.flavor
= FL_DERIVED
;
6599 dt_sym
->attr
.private_comp
= 1;
6600 dt_sym
->attr
.zero_comp
= 1;
6601 dt_sym
->attr
.use_assoc
= 1;
6602 dt_sym
->module
= gfc_get_string ("%s", modname
);
6603 dt_sym
->from_intmod
= module
;
6604 dt_sym
->intmod_sym_id
= id
;
6606 head
= sym
->generic
;
6607 intr
= gfc_get_interface ();
6609 intr
->where
= gfc_current_locus
;
6611 sym
->generic
= intr
;
6612 sym
->attr
.if_source
= IFSRC_DECL
;
6616 /* Read the contents of the module file into a temporary buffer. */
6619 read_module_to_tmpbuf ()
6621 /* We don't know the uncompressed size, so enlarge the buffer as
6627 module_content
= XNEWVEC (char, cursz
);
6631 int nread
= gzread (module_fp
, module_content
+ len
, rsize
);
6636 module_content
= XRESIZEVEC (char, module_content
, cursz
);
6637 rsize
= cursz
- len
;
6640 module_content
= XRESIZEVEC (char, module_content
, len
+ 1);
6641 module_content
[len
] = '\0';
6647 /* USE the ISO_FORTRAN_ENV intrinsic module. */
6650 use_iso_fortran_env_module (void)
6652 static char mod
[] = "iso_fortran_env";
6654 gfc_symbol
*mod_sym
;
6655 gfc_symtree
*mod_symtree
;
6659 intmod_sym symbol
[] = {
6660 #define NAMED_INTCST(a,b,c,d) { a, b, 0, d },
6661 #define NAMED_KINDARRAY(a,b,c,d) { a, b, 0, d },
6662 #define NAMED_DERIVED_TYPE(a,b,c,d) { a, b, 0, d },
6663 #define NAMED_FUNCTION(a,b,c,d) { a, b, c, d },
6664 #define NAMED_SUBROUTINE(a,b,c,d) { a, b, c, d },
6665 #include "iso-fortran-env.def"
6666 { ISOFORTRANENV_INVALID
, NULL
, -1234, 0 } };
6669 #define NAMED_INTCST(a,b,c,d) symbol[i++].value = c;
6670 #include "iso-fortran-env.def"
6672 /* Generate the symbol for the module itself. */
6673 mod_symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, mod
);
6674 if (mod_symtree
== NULL
)
6676 gfc_get_sym_tree (mod
, gfc_current_ns
, &mod_symtree
, false);
6677 gcc_assert (mod_symtree
);
6678 mod_sym
= mod_symtree
->n
.sym
;
6680 mod_sym
->attr
.flavor
= FL_MODULE
;
6681 mod_sym
->attr
.intrinsic
= 1;
6682 mod_sym
->module
= gfc_get_string ("%s", mod
);
6683 mod_sym
->from_intmod
= INTMOD_ISO_FORTRAN_ENV
;
6686 if (!mod_symtree
->n
.sym
->attr
.intrinsic
)
6687 gfc_error ("Use of intrinsic module %qs at %C conflicts with "
6688 "non-intrinsic module name used previously", mod
);
6690 /* Generate the symbols for the module integer named constants. */
6692 for (i
= 0; symbol
[i
].name
; i
++)
6695 for (u
= gfc_rename_list
; u
; u
= u
->next
)
6697 if (strcmp (symbol
[i
].name
, u
->use_name
) == 0)
6702 if (!gfc_notify_std (symbol
[i
].standard
, "The symbol %qs, "
6703 "referenced at %L, is not in the selected "
6704 "standard", symbol
[i
].name
, &u
->where
))
6707 if ((flag_default_integer
|| flag_default_real
)
6708 && symbol
[i
].id
== ISOFORTRANENV_NUMERIC_STORAGE_SIZE
)
6709 gfc_warning_now (0, "Use of the NUMERIC_STORAGE_SIZE named "
6710 "constant from intrinsic module "
6711 "ISO_FORTRAN_ENV at %L is incompatible with "
6712 "option %qs", &u
->where
,
6713 flag_default_integer
6714 ? "-fdefault-integer-8"
6715 : "-fdefault-real-8");
6716 switch (symbol
[i
].id
)
6718 #define NAMED_INTCST(a,b,c,d) \
6720 #include "iso-fortran-env.def"
6721 create_int_parameter (u
->local_name
[0] ? u
->local_name
6723 symbol
[i
].value
, mod
,
6724 INTMOD_ISO_FORTRAN_ENV
, symbol
[i
].id
);
6727 #define NAMED_KINDARRAY(a,b,KINDS,d) \
6729 expr = gfc_get_array_expr (BT_INTEGER, \
6730 gfc_default_integer_kind,\
6732 for (j = 0; KINDS[j].kind != 0; j++) \
6733 gfc_constructor_append_expr (&expr->value.constructor, \
6734 gfc_get_int_expr (gfc_default_integer_kind, NULL, \
6735 KINDS[j].kind), NULL); \
6736 create_int_parameter_array (u->local_name[0] ? u->local_name \
6739 INTMOD_ISO_FORTRAN_ENV, \
6742 #include "iso-fortran-env.def"
6744 #define NAMED_DERIVED_TYPE(a,b,TYPE,STD) \
6746 #include "iso-fortran-env.def"
6747 create_derived_type (u
->local_name
[0] ? u
->local_name
6749 mod
, INTMOD_ISO_FORTRAN_ENV
,
6753 #define NAMED_FUNCTION(a,b,c,d) \
6755 #include "iso-fortran-env.def"
6756 create_intrinsic_function (u
->local_name
[0] ? u
->local_name
6759 INTMOD_ISO_FORTRAN_ENV
, false,
6769 if (!found
&& !only_flag
)
6771 if ((gfc_option
.allow_std
& symbol
[i
].standard
) == 0)
6774 if ((flag_default_integer
|| flag_default_real
)
6775 && symbol
[i
].id
== ISOFORTRANENV_NUMERIC_STORAGE_SIZE
)
6777 "Use of the NUMERIC_STORAGE_SIZE named constant "
6778 "from intrinsic module ISO_FORTRAN_ENV at %C is "
6779 "incompatible with option %s",
6780 flag_default_integer
6781 ? "-fdefault-integer-8" : "-fdefault-real-8");
6783 switch (symbol
[i
].id
)
6785 #define NAMED_INTCST(a,b,c,d) \
6787 #include "iso-fortran-env.def"
6788 create_int_parameter (symbol
[i
].name
, symbol
[i
].value
, mod
,
6789 INTMOD_ISO_FORTRAN_ENV
, symbol
[i
].id
);
6792 #define NAMED_KINDARRAY(a,b,KINDS,d) \
6794 expr = gfc_get_array_expr (BT_INTEGER, gfc_default_integer_kind, \
6796 for (j = 0; KINDS[j].kind != 0; j++) \
6797 gfc_constructor_append_expr (&expr->value.constructor, \
6798 gfc_get_int_expr (gfc_default_integer_kind, NULL, \
6799 KINDS[j].kind), NULL); \
6800 create_int_parameter_array (symbol[i].name, j, expr, mod, \
6801 INTMOD_ISO_FORTRAN_ENV, symbol[i].id);\
6803 #include "iso-fortran-env.def"
6805 #define NAMED_DERIVED_TYPE(a,b,TYPE,STD) \
6807 #include "iso-fortran-env.def"
6808 create_derived_type (symbol
[i
].name
, mod
, INTMOD_ISO_FORTRAN_ENV
,
6812 #define NAMED_FUNCTION(a,b,c,d) \
6814 #include "iso-fortran-env.def"
6815 create_intrinsic_function (symbol
[i
].name
, symbol
[i
].id
, mod
,
6816 INTMOD_ISO_FORTRAN_ENV
, false,
6826 for (u
= gfc_rename_list
; u
; u
= u
->next
)
6831 gfc_error ("Symbol %qs referenced at %L not found in intrinsic "
6832 "module ISO_FORTRAN_ENV", u
->use_name
, &u
->where
);
6837 /* Process a USE directive. */
6840 gfc_use_module (gfc_use_list
*module
)
6845 gfc_symtree
*mod_symtree
;
6846 gfc_use_list
*use_stmt
;
6847 locus old_locus
= gfc_current_locus
;
6849 gfc_current_locus
= module
->where
;
6850 module_name
= module
->module_name
;
6851 gfc_rename_list
= module
->rename
;
6852 only_flag
= module
->only_flag
;
6853 current_intmod
= INTMOD_NONE
;
6856 gfc_warning_now (OPT_Wuse_without_only
,
6857 "USE statement at %C has no ONLY qualifier");
6859 if (gfc_state_stack
->state
== COMP_MODULE
6860 || module
->submodule_name
== NULL
)
6862 filename
= XALLOCAVEC (char, strlen (module_name
)
6863 + strlen (MODULE_EXTENSION
) + 1);
6864 strcpy (filename
, module_name
);
6865 strcat (filename
, MODULE_EXTENSION
);
6869 filename
= XALLOCAVEC (char, strlen (module
->submodule_name
)
6870 + strlen (SUBMODULE_EXTENSION
) + 1);
6871 strcpy (filename
, module
->submodule_name
);
6872 strcat (filename
, SUBMODULE_EXTENSION
);
6875 /* First, try to find an non-intrinsic module, unless the USE statement
6876 specified that the module is intrinsic. */
6878 if (!module
->intrinsic
)
6879 module_fp
= gzopen_included_file (filename
, true, true);
6881 /* Then, see if it's an intrinsic one, unless the USE statement
6882 specified that the module is non-intrinsic. */
6883 if (module_fp
== NULL
&& !module
->non_intrinsic
)
6885 if (strcmp (module_name
, "iso_fortran_env") == 0
6886 && gfc_notify_std (GFC_STD_F2003
, "ISO_FORTRAN_ENV "
6887 "intrinsic module at %C"))
6889 use_iso_fortran_env_module ();
6890 free_rename (module
->rename
);
6891 module
->rename
= NULL
;
6892 gfc_current_locus
= old_locus
;
6893 module
->intrinsic
= true;
6897 if (strcmp (module_name
, "iso_c_binding") == 0
6898 && gfc_notify_std (GFC_STD_F2003
, "ISO_C_BINDING module at %C"))
6900 import_iso_c_binding_module();
6901 free_rename (module
->rename
);
6902 module
->rename
= NULL
;
6903 gfc_current_locus
= old_locus
;
6904 module
->intrinsic
= true;
6908 module_fp
= gzopen_intrinsic_module (filename
);
6910 if (module_fp
== NULL
&& module
->intrinsic
)
6911 gfc_fatal_error ("Can't find an intrinsic module named %qs at %C",
6914 /* Check for the IEEE modules, so we can mark their symbols
6915 accordingly when we read them. */
6916 if (strcmp (module_name
, "ieee_features") == 0
6917 && gfc_notify_std (GFC_STD_F2003
, "IEEE_FEATURES module at %C"))
6919 current_intmod
= INTMOD_IEEE_FEATURES
;
6921 else if (strcmp (module_name
, "ieee_exceptions") == 0
6922 && gfc_notify_std (GFC_STD_F2003
,
6923 "IEEE_EXCEPTIONS module at %C"))
6925 current_intmod
= INTMOD_IEEE_EXCEPTIONS
;
6927 else if (strcmp (module_name
, "ieee_arithmetic") == 0
6928 && gfc_notify_std (GFC_STD_F2003
,
6929 "IEEE_ARITHMETIC module at %C"))
6931 current_intmod
= INTMOD_IEEE_ARITHMETIC
;
6935 if (module_fp
== NULL
)
6937 if (gfc_state_stack
->state
!= COMP_SUBMODULE
6938 && module
->submodule_name
== NULL
)
6939 gfc_fatal_error ("Can't open module file %qs for reading at %C: %s",
6940 filename
, xstrerror (errno
));
6942 gfc_fatal_error ("Module file %qs has not been generated, either "
6943 "because the module does not contain a MODULE "
6944 "PROCEDURE or there is an error in the module.",
6948 /* Check that we haven't already USEd an intrinsic module with the
6951 mod_symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, module_name
);
6952 if (mod_symtree
&& mod_symtree
->n
.sym
->attr
.intrinsic
)
6953 gfc_error ("Use of non-intrinsic module %qs at %C conflicts with "
6954 "intrinsic module name used previously", module_name
);
6961 read_module_to_tmpbuf ();
6962 gzclose (module_fp
);
6964 /* Skip the first line of the module, after checking that this is
6965 a gfortran module file. */
6971 bad_module ("Unexpected end of module");
6974 if ((start
== 1 && strcmp (atom_name
, "GFORTRAN") != 0)
6975 || (start
== 2 && strcmp (atom_name
, " module") != 0))
6976 gfc_fatal_error ("File %qs opened at %C is not a GNU Fortran"
6977 " module file", filename
);
6980 if (strcmp (atom_name
, " version") != 0
6981 || module_char () != ' '
6982 || parse_atom () != ATOM_STRING
6983 || strcmp (atom_string
, MOD_VERSION
))
6984 gfc_fatal_error ("Cannot read module file %qs opened at %C,"
6985 " because it was created by a different"
6986 " version of GNU Fortran", filename
);
6995 /* Make sure we're not reading the same module that we may be building. */
6996 for (p
= gfc_state_stack
; p
; p
= p
->previous
)
6997 if ((p
->state
== COMP_MODULE
|| p
->state
== COMP_SUBMODULE
)
6998 && strcmp (p
->sym
->name
, module_name
) == 0)
6999 gfc_fatal_error ("Can't USE the same %smodule we're building!",
7000 p
->state
== COMP_SUBMODULE
? "sub" : "");
7003 init_true_name_tree ();
7007 free_true_name (true_name_root
);
7008 true_name_root
= NULL
;
7010 free_pi_tree (pi_root
);
7013 XDELETEVEC (module_content
);
7014 module_content
= NULL
;
7016 use_stmt
= gfc_get_use_list ();
7017 *use_stmt
= *module
;
7018 use_stmt
->next
= gfc_current_ns
->use_stmts
;
7019 gfc_current_ns
->use_stmts
= use_stmt
;
7021 gfc_current_locus
= old_locus
;
7025 /* Remove duplicated intrinsic operators from the rename list. */
7028 rename_list_remove_duplicate (gfc_use_rename
*list
)
7030 gfc_use_rename
*seek
, *last
;
7032 for (; list
; list
= list
->next
)
7033 if (list
->op
!= INTRINSIC_USER
&& list
->op
!= INTRINSIC_NONE
)
7036 for (seek
= list
->next
; seek
; seek
= last
->next
)
7038 if (list
->op
== seek
->op
)
7040 last
->next
= seek
->next
;
7050 /* Process all USE directives. */
7053 gfc_use_modules (void)
7055 gfc_use_list
*next
, *seek
, *last
;
7057 for (next
= module_list
; next
; next
= next
->next
)
7059 bool non_intrinsic
= next
->non_intrinsic
;
7060 bool intrinsic
= next
->intrinsic
;
7061 bool neither
= !non_intrinsic
&& !intrinsic
;
7063 for (seek
= next
->next
; seek
; seek
= seek
->next
)
7065 if (next
->module_name
!= seek
->module_name
)
7068 if (seek
->non_intrinsic
)
7069 non_intrinsic
= true;
7070 else if (seek
->intrinsic
)
7076 if (intrinsic
&& neither
&& !non_intrinsic
)
7081 filename
= XALLOCAVEC (char,
7082 strlen (next
->module_name
)
7083 + strlen (MODULE_EXTENSION
) + 1);
7084 strcpy (filename
, next
->module_name
);
7085 strcat (filename
, MODULE_EXTENSION
);
7086 fp
= gfc_open_included_file (filename
, true, true);
7089 non_intrinsic
= true;
7095 for (seek
= next
->next
; seek
; seek
= last
->next
)
7097 if (next
->module_name
!= seek
->module_name
)
7103 if ((!next
->intrinsic
&& !seek
->intrinsic
)
7104 || (next
->intrinsic
&& seek
->intrinsic
)
7107 if (!seek
->only_flag
)
7108 next
->only_flag
= false;
7111 gfc_use_rename
*r
= seek
->rename
;
7114 r
->next
= next
->rename
;
7115 next
->rename
= seek
->rename
;
7117 last
->next
= seek
->next
;
7125 for (; module_list
; module_list
= next
)
7127 next
= module_list
->next
;
7128 rename_list_remove_duplicate (module_list
->rename
);
7129 gfc_use_module (module_list
);
7132 gfc_rename_list
= NULL
;
7137 gfc_free_use_stmts (gfc_use_list
*use_stmts
)
7140 for (; use_stmts
; use_stmts
= next
)
7142 gfc_use_rename
*next_rename
;
7144 for (; use_stmts
->rename
; use_stmts
->rename
= next_rename
)
7146 next_rename
= use_stmts
->rename
->next
;
7147 free (use_stmts
->rename
);
7149 next
= use_stmts
->next
;
7156 gfc_module_init_2 (void)
7158 last_atom
= ATOM_LPAREN
;
7159 gfc_rename_list
= NULL
;
7165 gfc_module_done_2 (void)
7167 free_rename (gfc_rename_list
);
7168 gfc_rename_list
= NULL
;