1 /* Handle modules, which amounts to loading and saving symbols and
2 their attendant structures.
3 Copyright (C) 2000-2019 Free Software Foundation, Inc.
4 Contributed by Andy Vaught
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify it under
9 the terms of the GNU General Public License as published by the Free
10 Software Foundation; either version 3, or (at your option) any later
13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING3. If not see
20 <http://www.gnu.org/licenses/>. */
22 /* The syntax of gfortran modules resembles that of lisp lists, i.e. a
23 sequence of atoms, which can be left or right parenthesis, names,
24 integers or strings. Parenthesis are always matched which allows
25 us to skip over sections at high speed without having to know
26 anything about the internal structure of the lists. A "name" is
27 usually a fortran 95 identifier, but can also start with '@' in
28 order to reference a hidden symbol.
30 The first line of a module is an informational message about what
31 created the module, the file it came from and when it was created.
32 The second line is a warning for people not to edit the module.
33 The rest of the module looks like:
35 ( ( <Interface info for UPLUS> )
36 ( <Interface info for UMINUS> )
39 ( ( <name of operator interface> <module of op interface> <i/f1> ... )
42 ( ( <name of generic interface> <module of generic interface> <i/f1> ... )
45 ( ( <common name> <symbol> <saved flag>)
51 ( <Symbol Number (in no particular order)>
53 <Module name of symbol>
54 ( <symbol information> )
63 In general, symbols refer to other symbols by their symbol number,
64 which are zero based. Symbols are written to the module in no
69 #include "coretypes.h"
73 #include "stringpool.h"
76 #include "parse.h" /* FIXME */
77 #include "constructor.h"
82 #define MODULE_EXTENSION ".mod"
83 #define SUBMODULE_EXTENSION ".smod"
85 /* Don't put any single quote (') in MOD_VERSION, if you want it to be
87 #define MOD_VERSION "15"
90 /* Structure that describes a position within a module file. */
99 /* Structure for list of symbols of intrinsic modules. */
112 P_UNKNOWN
= 0, P_OTHER
, P_NAMESPACE
, P_COMPONENT
, P_SYMBOL
116 /* The fixup structure lists pointers to pointers that have to
117 be updated when a pointer value becomes known. */
119 typedef struct fixup_t
122 struct fixup_t
*next
;
127 /* Structure for holding extra info needed for pointers being read. */
143 typedef struct pointer_info
145 BBT_HEADER (pointer_info
);
146 HOST_WIDE_INT integer
;
149 /* The first component of each member of the union is the pointer
156 void *pointer
; /* Member for doing pointer searches. */
161 char *true_name
, *module
, *binding_label
;
163 gfc_symtree
*symtree
;
164 enum gfc_rsym_state state
;
165 int ns
, referenced
, renamed
;
173 enum gfc_wsym_state state
;
182 #define gfc_get_pointer_info() XCNEW (pointer_info)
185 /* Local variables */
187 /* The gzFile for the module we're reading or writing. */
188 static gzFile module_fp
;
191 /* The name of the module we're reading (USE'ing) or writing. */
192 static const char *module_name
;
193 /* The name of the .smod file that the submodule will write to. */
194 static const char *submodule_name
;
196 static gfc_use_list
*module_list
;
198 /* If we're reading an intrinsic module, this is its ID. */
199 static intmod_id current_intmod
;
201 /* Content of module. */
202 static char* module_content
;
204 static long module_pos
;
205 static int module_line
, module_column
, only_flag
;
206 static int prev_module_line
, prev_module_column
;
209 { IO_INPUT
, IO_OUTPUT
}
212 static gfc_use_rename
*gfc_rename_list
;
213 static pointer_info
*pi_root
;
214 static int symbol_number
; /* Counter for assigning symbol numbers */
216 /* Tells mio_expr_ref to make symbols for unused equivalence members. */
217 static bool in_load_equiv
;
221 /*****************************************************************/
223 /* Pointer/integer conversion. Pointers between structures are stored
224 as integers in the module file. The next couple of subroutines
225 handle this translation for reading and writing. */
227 /* Recursively free the tree of pointer structures. */
230 free_pi_tree (pointer_info
*p
)
235 if (p
->fixup
!= NULL
)
236 gfc_internal_error ("free_pi_tree(): Unresolved fixup");
238 free_pi_tree (p
->left
);
239 free_pi_tree (p
->right
);
241 if (iomode
== IO_INPUT
)
243 XDELETEVEC (p
->u
.rsym
.true_name
);
244 XDELETEVEC (p
->u
.rsym
.module
);
245 XDELETEVEC (p
->u
.rsym
.binding_label
);
252 /* Compare pointers when searching by pointer. Used when writing a
256 compare_pointers (void *_sn1
, void *_sn2
)
258 pointer_info
*sn1
, *sn2
;
260 sn1
= (pointer_info
*) _sn1
;
261 sn2
= (pointer_info
*) _sn2
;
263 if (sn1
->u
.pointer
< sn2
->u
.pointer
)
265 if (sn1
->u
.pointer
> sn2
->u
.pointer
)
272 /* Compare integers when searching by integer. Used when reading a
276 compare_integers (void *_sn1
, void *_sn2
)
278 pointer_info
*sn1
, *sn2
;
280 sn1
= (pointer_info
*) _sn1
;
281 sn2
= (pointer_info
*) _sn2
;
283 if (sn1
->integer
< sn2
->integer
)
285 if (sn1
->integer
> sn2
->integer
)
292 /* Initialize the pointer_info tree. */
301 compare
= (iomode
== IO_INPUT
) ? compare_integers
: compare_pointers
;
303 /* Pointer 0 is the NULL pointer. */
304 p
= gfc_get_pointer_info ();
309 gfc_insert_bbt (&pi_root
, p
, compare
);
311 /* Pointer 1 is the current namespace. */
312 p
= gfc_get_pointer_info ();
313 p
->u
.pointer
= gfc_current_ns
;
315 p
->type
= P_NAMESPACE
;
317 gfc_insert_bbt (&pi_root
, p
, compare
);
323 /* During module writing, call here with a pointer to something,
324 returning the pointer_info node. */
326 static pointer_info
*
327 find_pointer (void *gp
)
334 if (p
->u
.pointer
== gp
)
336 p
= (gp
< p
->u
.pointer
) ? p
->left
: p
->right
;
343 /* Given a pointer while writing, returns the pointer_info tree node,
344 creating it if it doesn't exist. */
346 static pointer_info
*
347 get_pointer (void *gp
)
351 p
= find_pointer (gp
);
355 /* Pointer doesn't have an integer. Give it one. */
356 p
= gfc_get_pointer_info ();
359 p
->integer
= symbol_number
++;
361 gfc_insert_bbt (&pi_root
, p
, compare_pointers
);
367 /* Given an integer during reading, find it in the pointer_info tree,
368 creating the node if not found. */
370 static pointer_info
*
371 get_integer (HOST_WIDE_INT integer
)
381 c
= compare_integers (&t
, p
);
385 p
= (c
< 0) ? p
->left
: p
->right
;
391 p
= gfc_get_pointer_info ();
392 p
->integer
= integer
;
395 gfc_insert_bbt (&pi_root
, p
, compare_integers
);
401 /* Resolve any fixups using a known pointer. */
404 resolve_fixups (fixup_t
*f
, void *gp
)
417 /* Convert a string such that it starts with a lower-case character. Used
418 to convert the symtree name of a derived-type to the symbol name or to
419 the name of the associated generic function. */
422 gfc_dt_lower_string (const char *name
)
424 if (name
[0] != (char) TOLOWER ((unsigned char) name
[0]))
425 return gfc_get_string ("%c%s", (char) TOLOWER ((unsigned char) name
[0]),
427 return gfc_get_string ("%s", name
);
431 /* Convert a string such that it starts with an upper-case character. Used to
432 return the symtree-name for a derived type; the symbol name itself and the
433 symtree/symbol name of the associated generic function start with a lower-
437 gfc_dt_upper_string (const char *name
)
439 if (name
[0] != (char) TOUPPER ((unsigned char) name
[0]))
440 return gfc_get_string ("%c%s", (char) TOUPPER ((unsigned char) name
[0]),
442 return gfc_get_string ("%s", name
);
445 /* Call here during module reading when we know what pointer to
446 associate with an integer. Any fixups that exist are resolved at
450 associate_integer_pointer (pointer_info
*p
, void *gp
)
452 if (p
->u
.pointer
!= NULL
)
453 gfc_internal_error ("associate_integer_pointer(): Already associated");
457 resolve_fixups (p
->fixup
, gp
);
463 /* During module reading, given an integer and a pointer to a pointer,
464 either store the pointer from an already-known value or create a
465 fixup structure in order to store things later. Returns zero if
466 the reference has been actually stored, or nonzero if the reference
467 must be fixed later (i.e., associate_integer_pointer must be called
468 sometime later. Returns the pointer_info structure. */
470 static pointer_info
*
471 add_fixup (HOST_WIDE_INT integer
, void *gp
)
477 p
= get_integer (integer
);
479 if (p
->integer
== 0 || p
->u
.pointer
!= NULL
)
482 *cp
= (char *) p
->u
.pointer
;
491 f
->pointer
= (void **) gp
;
498 /*****************************************************************/
500 /* Parser related subroutines */
502 /* Free the rename list left behind by a USE statement. */
505 free_rename (gfc_use_rename
*list
)
507 gfc_use_rename
*next
;
509 for (; list
; list
= next
)
517 /* Match a USE statement. */
522 char name
[GFC_MAX_SYMBOL_LEN
+ 1], module_nature
[GFC_MAX_SYMBOL_LEN
+ 1];
523 gfc_use_rename
*tail
= NULL
, *new_use
;
524 interface_type type
, type2
;
527 gfc_use_list
*use_list
;
529 use_list
= gfc_get_use_list ();
531 if (gfc_match (" , ") == MATCH_YES
)
533 if ((m
= gfc_match (" %n ::", module_nature
)) == MATCH_YES
)
535 if (!gfc_notify_std (GFC_STD_F2003
, "module "
536 "nature in USE statement at %C"))
539 if (strcmp (module_nature
, "intrinsic") == 0)
540 use_list
->intrinsic
= true;
543 if (strcmp (module_nature
, "non_intrinsic") == 0)
544 use_list
->non_intrinsic
= true;
547 gfc_error ("Module nature in USE statement at %C shall "
548 "be either INTRINSIC or NON_INTRINSIC");
555 /* Help output a better error message than "Unclassifiable
557 gfc_match (" %n", module_nature
);
558 if (strcmp (module_nature
, "intrinsic") == 0
559 || strcmp (module_nature
, "non_intrinsic") == 0)
560 gfc_error ("\"::\" was expected after module nature at %C "
561 "but was not found");
568 m
= gfc_match (" ::");
569 if (m
== MATCH_YES
&&
570 !gfc_notify_std(GFC_STD_F2003
, "\"USE :: module\" at %C"))
575 m
= gfc_match ("% ");
584 use_list
->where
= gfc_current_locus
;
586 m
= gfc_match_name (name
);
593 use_list
->module_name
= gfc_get_string ("%s", name
);
595 if (gfc_match_eos () == MATCH_YES
)
598 if (gfc_match_char (',') != MATCH_YES
)
601 if (gfc_match (" only :") == MATCH_YES
)
602 use_list
->only_flag
= true;
604 if (gfc_match_eos () == MATCH_YES
)
609 /* Get a new rename struct and add it to the rename list. */
610 new_use
= gfc_get_use_rename ();
611 new_use
->where
= gfc_current_locus
;
614 if (use_list
->rename
== NULL
)
615 use_list
->rename
= new_use
;
617 tail
->next
= new_use
;
620 /* See what kind of interface we're dealing with. Assume it is
622 new_use
->op
= INTRINSIC_NONE
;
623 if (gfc_match_generic_spec (&type
, name
, &op
) == MATCH_ERROR
)
628 case INTERFACE_NAMELESS
:
629 gfc_error ("Missing generic specification in USE statement at %C");
632 case INTERFACE_USER_OP
:
633 case INTERFACE_GENERIC
:
635 m
= gfc_match (" =>");
637 if (type
== INTERFACE_USER_OP
&& m
== MATCH_YES
638 && (!gfc_notify_std(GFC_STD_F2003
, "Renaming "
639 "operators in USE statements at %C")))
642 if (type
== INTERFACE_USER_OP
)
643 new_use
->op
= INTRINSIC_USER
;
645 if (use_list
->only_flag
)
648 strcpy (new_use
->use_name
, name
);
651 strcpy (new_use
->local_name
, name
);
652 m
= gfc_match_generic_spec (&type2
, new_use
->use_name
, &op
);
657 if (m
== MATCH_ERROR
)
665 strcpy (new_use
->local_name
, name
);
667 m
= gfc_match_generic_spec (&type2
, new_use
->use_name
, &op
);
672 if (m
== MATCH_ERROR
)
676 if (strcmp (new_use
->use_name
, use_list
->module_name
) == 0
677 || strcmp (new_use
->local_name
, use_list
->module_name
) == 0)
679 gfc_error ("The name %qs at %C has already been used as "
680 "an external module name", use_list
->module_name
);
685 case INTERFACE_INTRINSIC_OP
:
693 if (gfc_match_eos () == MATCH_YES
)
695 if (gfc_match_char (',') != MATCH_YES
)
702 gfc_use_list
*last
= module_list
;
705 last
->next
= use_list
;
708 module_list
= use_list
;
713 gfc_syntax_error (ST_USE
);
716 free_rename (use_list
->rename
);
722 /* Match a SUBMODULE statement.
724 According to F2008:11.2.3.2, "The submodule identifier is the
725 ordered pair whose first element is the ancestor module name and
726 whose second element is the submodule name. 'Submodule_name' is
727 used for the submodule filename and uses '@' as a separator, whilst
728 the name of the symbol for the module uses '.' as a a separator.
729 The reasons for these choices are:
730 (i) To follow another leading brand in the submodule filenames;
731 (ii) Since '.' is not particularly visible in the filenames; and
732 (iii) The linker does not permit '@' in mnemonics. */
735 gfc_match_submodule (void)
738 char name
[GFC_MAX_SYMBOL_LEN
+ 1];
739 gfc_use_list
*use_list
;
740 bool seen_colon
= false;
742 if (!gfc_notify_std (GFC_STD_F2008
, "SUBMODULE declaration at %C"))
745 if (gfc_current_state () != COMP_NONE
)
747 gfc_error ("SUBMODULE declaration at %C cannot appear within "
748 "another scoping unit");
752 gfc_new_block
= NULL
;
753 gcc_assert (module_list
== NULL
);
755 if (gfc_match_char ('(') != MATCH_YES
)
760 m
= gfc_match (" %n", name
);
764 use_list
= gfc_get_use_list ();
765 use_list
->where
= gfc_current_locus
;
769 gfc_use_list
*last
= module_list
;
772 last
->next
= use_list
;
773 use_list
->module_name
774 = gfc_get_string ("%s.%s", module_list
->module_name
, name
);
775 use_list
->submodule_name
776 = gfc_get_string ("%s@%s", module_list
->module_name
, name
);
780 module_list
= use_list
;
781 use_list
->module_name
= gfc_get_string ("%s", name
);
782 use_list
->submodule_name
= use_list
->module_name
;
785 if (gfc_match_char (')') == MATCH_YES
)
788 if (gfc_match_char (':') != MATCH_YES
795 m
= gfc_match (" %s%t", &gfc_new_block
);
799 submodule_name
= gfc_get_string ("%s@%s", module_list
->module_name
,
800 gfc_new_block
->name
);
802 gfc_new_block
->name
= gfc_get_string ("%s.%s",
803 module_list
->module_name
,
804 gfc_new_block
->name
);
806 if (!gfc_add_flavor (&gfc_new_block
->attr
, FL_MODULE
,
807 gfc_new_block
->name
, NULL
))
810 /* Just retain the ultimate .(s)mod file for reading, since it
811 contains all the information in its ancestors. */
812 use_list
= module_list
;
813 for (; module_list
->next
; use_list
= module_list
)
815 module_list
= use_list
->next
;
822 gfc_error ("Syntax error in SUBMODULE statement at %C");
827 /* Given a name and a number, inst, return the inst name
828 under which to load this symbol. Returns NULL if this
829 symbol shouldn't be loaded. If inst is zero, returns
830 the number of instances of this name. If interface is
831 true, a user-defined operator is sought, otherwise only
832 non-operators are sought. */
835 find_use_name_n (const char *name
, int *inst
, bool interface
)
838 const char *low_name
= NULL
;
841 /* For derived types. */
842 if (name
[0] != (char) TOLOWER ((unsigned char) name
[0]))
843 low_name
= gfc_dt_lower_string (name
);
846 for (u
= gfc_rename_list
; u
; u
= u
->next
)
848 if ((!low_name
&& strcmp (u
->use_name
, name
) != 0)
849 || (low_name
&& strcmp (u
->use_name
, low_name
) != 0)
850 || (u
->op
== INTRINSIC_USER
&& !interface
)
851 || (u
->op
!= INTRINSIC_USER
&& interface
))
864 return only_flag
? NULL
: name
;
870 if (u
->local_name
[0] == '\0')
872 return gfc_dt_upper_string (u
->local_name
);
875 return (u
->local_name
[0] != '\0') ? u
->local_name
: name
;
879 /* Given a name, return the name under which to load this symbol.
880 Returns NULL if this symbol shouldn't be loaded. */
883 find_use_name (const char *name
, bool interface
)
886 return find_use_name_n (name
, &i
, interface
);
890 /* Given a real name, return the number of use names associated with it. */
893 number_use_names (const char *name
, bool interface
)
896 find_use_name_n (name
, &i
, interface
);
901 /* Try to find the operator in the current list. */
903 static gfc_use_rename
*
904 find_use_operator (gfc_intrinsic_op op
)
908 for (u
= gfc_rename_list
; u
; u
= u
->next
)
916 /*****************************************************************/
918 /* The next couple of subroutines maintain a tree used to avoid a
919 brute-force search for a combination of true name and module name.
920 While symtree names, the name that a particular symbol is known by
921 can changed with USE statements, we still have to keep track of the
922 true names to generate the correct reference, and also avoid
923 loading the same real symbol twice in a program unit.
925 When we start reading, the true name tree is built and maintained
926 as symbols are read. The tree is searched as we load new symbols
927 to see if it already exists someplace in the namespace. */
929 typedef struct true_name
931 BBT_HEADER (true_name
);
937 static true_name
*true_name_root
;
940 /* Compare two true_name structures. */
943 compare_true_names (void *_t1
, void *_t2
)
948 t1
= (true_name
*) _t1
;
949 t2
= (true_name
*) _t2
;
951 c
= ((t1
->sym
->module
> t2
->sym
->module
)
952 - (t1
->sym
->module
< t2
->sym
->module
));
956 return strcmp (t1
->name
, t2
->name
);
960 /* Given a true name, search the true name tree to see if it exists
961 within the main namespace. */
964 find_true_name (const char *name
, const char *module
)
970 t
.name
= gfc_get_string ("%s", name
);
972 sym
.module
= gfc_get_string ("%s", module
);
980 c
= compare_true_names ((void *) (&t
), (void *) p
);
984 p
= (c
< 0) ? p
->left
: p
->right
;
991 /* Given a gfc_symbol pointer that is not in the true name tree, add it. */
994 add_true_name (gfc_symbol
*sym
)
998 t
= XCNEW (true_name
);
1000 if (gfc_fl_struct (sym
->attr
.flavor
))
1001 t
->name
= gfc_dt_upper_string (sym
->name
);
1003 t
->name
= sym
->name
;
1005 gfc_insert_bbt (&true_name_root
, t
, compare_true_names
);
1009 /* Recursive function to build the initial true name tree by
1010 recursively traversing the current namespace. */
1013 build_tnt (gfc_symtree
*st
)
1019 build_tnt (st
->left
);
1020 build_tnt (st
->right
);
1022 if (gfc_fl_struct (st
->n
.sym
->attr
.flavor
))
1023 name
= gfc_dt_upper_string (st
->n
.sym
->name
);
1025 name
= st
->n
.sym
->name
;
1027 if (find_true_name (name
, st
->n
.sym
->module
) != NULL
)
1030 add_true_name (st
->n
.sym
);
1034 /* Initialize the true name tree with the current namespace. */
1037 init_true_name_tree (void)
1039 true_name_root
= NULL
;
1040 build_tnt (gfc_current_ns
->sym_root
);
1044 /* Recursively free a true name tree node. */
1047 free_true_name (true_name
*t
)
1051 free_true_name (t
->left
);
1052 free_true_name (t
->right
);
1058 /*****************************************************************/
1060 /* Module reading and writing. */
1062 /* The following are versions similar to the ones in scanner.c, but
1063 for dealing with compressed module files. */
1066 gzopen_included_file_1 (const char *name
, gfc_directorylist
*list
,
1067 bool module
, bool system
)
1070 gfc_directorylist
*p
;
1073 for (p
= list
; p
; p
= p
->next
)
1075 if (module
&& !p
->use_for_modules
)
1078 fullname
= (char *) alloca(strlen (p
->path
) + strlen (name
) + 1);
1079 strcpy (fullname
, p
->path
);
1080 strcat (fullname
, name
);
1082 f
= gzopen (fullname
, "r");
1085 if (gfc_cpp_makedep ())
1086 gfc_cpp_add_dep (fullname
, system
);
1096 gzopen_included_file (const char *name
, bool include_cwd
, bool module
)
1100 if (IS_ABSOLUTE_PATH (name
) || include_cwd
)
1102 f
= gzopen (name
, "r");
1103 if (f
&& gfc_cpp_makedep ())
1104 gfc_cpp_add_dep (name
, false);
1108 f
= gzopen_included_file_1 (name
, include_dirs
, module
, false);
1114 gzopen_intrinsic_module (const char* name
)
1118 if (IS_ABSOLUTE_PATH (name
))
1120 f
= gzopen (name
, "r");
1121 if (f
&& gfc_cpp_makedep ())
1122 gfc_cpp_add_dep (name
, true);
1126 f
= gzopen_included_file_1 (name
, intrinsic_modules_dirs
, true, true);
1134 ATOM_NAME
, ATOM_LPAREN
, ATOM_RPAREN
, ATOM_INTEGER
, ATOM_STRING
1137 static atom_type last_atom
;
1140 /* The name buffer must be at least as long as a symbol name. Right
1141 now it's not clear how we're going to store numeric constants--
1142 probably as a hexadecimal string, since this will allow the exact
1143 number to be preserved (this can't be done by a decimal
1144 representation). Worry about that later. TODO! */
1146 #define MAX_ATOM_SIZE 100
1148 static HOST_WIDE_INT atom_int
;
1149 static char *atom_string
, atom_name
[MAX_ATOM_SIZE
];
1152 /* Report problems with a module. Error reporting is not very
1153 elaborate, since this sorts of errors shouldn't really happen.
1154 This subroutine never returns. */
1156 static void bad_module (const char *) ATTRIBUTE_NORETURN
;
1159 bad_module (const char *msgid
)
1161 XDELETEVEC (module_content
);
1162 module_content
= NULL
;
1167 gfc_fatal_error ("Reading module %qs at line %d column %d: %s",
1168 module_name
, module_line
, module_column
, msgid
);
1171 gfc_fatal_error ("Writing module %qs at line %d column %d: %s",
1172 module_name
, module_line
, module_column
, msgid
);
1175 gfc_fatal_error ("Module %qs at line %d column %d: %s",
1176 module_name
, module_line
, module_column
, msgid
);
1182 /* Set the module's input pointer. */
1185 set_module_locus (module_locus
*m
)
1187 module_column
= m
->column
;
1188 module_line
= m
->line
;
1189 module_pos
= m
->pos
;
1193 /* Get the module's input pointer so that we can restore it later. */
1196 get_module_locus (module_locus
*m
)
1198 m
->column
= module_column
;
1199 m
->line
= module_line
;
1200 m
->pos
= module_pos
;
1204 /* Get the next character in the module, updating our reckoning of
1210 const char c
= module_content
[module_pos
++];
1212 bad_module ("Unexpected EOF");
1214 prev_module_line
= module_line
;
1215 prev_module_column
= module_column
;
1227 /* Unget a character while remembering the line and column. Works for
1228 a single character only. */
1231 module_unget_char (void)
1233 module_line
= prev_module_line
;
1234 module_column
= prev_module_column
;
1238 /* Parse a string constant. The delimiter is guaranteed to be a
1248 atom_string
= XNEWVEC (char, cursz
);
1256 int c2
= module_char ();
1259 module_unget_char ();
1267 atom_string
= XRESIZEVEC (char, atom_string
, cursz
);
1269 atom_string
[len
] = c
;
1273 atom_string
= XRESIZEVEC (char, atom_string
, len
+ 1);
1274 atom_string
[len
] = '\0'; /* C-style string for debug purposes. */
1278 /* Parse an integer. Should fit in a HOST_WIDE_INT. */
1281 parse_integer (int c
)
1290 module_unget_char ();
1294 atom_int
= 10 * atom_int
+ c
- '0';
1316 if (!ISALNUM (c
) && c
!= '_' && c
!= '-')
1318 module_unget_char ();
1323 if (++len
> GFC_MAX_SYMBOL_LEN
)
1324 bad_module ("Name too long");
1332 /* Read the next atom in the module's input stream. */
1343 while (c
== ' ' || c
== '\r' || c
== '\n');
1368 return ATOM_INTEGER
;
1426 bad_module ("Bad name");
1433 /* Peek at the next atom on the input. */
1444 while (c
== ' ' || c
== '\r' || c
== '\n');
1449 module_unget_char ();
1453 module_unget_char ();
1457 module_unget_char ();
1470 module_unget_char ();
1471 return ATOM_INTEGER
;
1525 module_unget_char ();
1529 bad_module ("Bad name");
1534 /* Read the next atom from the input, requiring that it be a
1538 require_atom (atom_type type
)
1544 column
= module_column
;
1553 p
= _("Expected name");
1556 p
= _("Expected left parenthesis");
1559 p
= _("Expected right parenthesis");
1562 p
= _("Expected integer");
1565 p
= _("Expected string");
1568 gfc_internal_error ("require_atom(): bad atom type required");
1571 module_column
= column
;
1578 /* Given a pointer to an mstring array, require that the current input
1579 be one of the strings in the array. We return the enum value. */
1582 find_enum (const mstring
*m
)
1586 i
= gfc_string2code (m
, atom_name
);
1590 bad_module ("find_enum(): Enum not found");
1596 /* Read a string. The caller is responsible for freeing. */
1602 require_atom (ATOM_STRING
);
1609 /**************** Module output subroutines ***************************/
1611 /* Output a character to a module file. */
1614 write_char (char out
)
1616 if (gzputc (module_fp
, out
) == EOF
)
1617 gfc_fatal_error ("Error writing modules file: %s", xstrerror (errno
));
1629 /* Write an atom to a module. The line wrapping isn't perfect, but it
1630 should work most of the time. This isn't that big of a deal, since
1631 the file really isn't meant to be read by people anyway. */
1634 write_atom (atom_type atom
, const void *v
)
1638 /* Workaround -Wmaybe-uninitialized false positive during
1639 profiledbootstrap by initializing them. */
1641 HOST_WIDE_INT i
= 0;
1648 p
= (const char *) v
;
1660 i
= *((const HOST_WIDE_INT
*) v
);
1662 snprintf (buffer
, sizeof (buffer
), HOST_WIDE_INT_PRINT_DEC
, i
);
1667 gfc_internal_error ("write_atom(): Trying to write dab atom");
1671 if(p
== NULL
|| *p
== '\0')
1676 if (atom
!= ATOM_RPAREN
)
1678 if (module_column
+ len
> 72)
1683 if (last_atom
!= ATOM_LPAREN
&& module_column
!= 1)
1688 if (atom
== ATOM_STRING
)
1691 while (p
!= NULL
&& *p
)
1693 if (atom
== ATOM_STRING
&& *p
== '\'')
1698 if (atom
== ATOM_STRING
)
1706 /***************** Mid-level I/O subroutines *****************/
1708 /* These subroutines let their caller read or write atoms without
1709 caring about which of the two is actually happening. This lets a
1710 subroutine concentrate on the actual format of the data being
1713 static void mio_expr (gfc_expr
**);
1714 pointer_info
*mio_symbol_ref (gfc_symbol
**);
1715 pointer_info
*mio_interface_rest (gfc_interface
**);
1716 static void mio_symtree_ref (gfc_symtree
**);
1718 /* Read or write an enumerated value. On writing, we return the input
1719 value for the convenience of callers. We avoid using an integer
1720 pointer because enums are sometimes inside bitfields. */
1723 mio_name (int t
, const mstring
*m
)
1725 if (iomode
== IO_OUTPUT
)
1726 write_atom (ATOM_NAME
, gfc_code2string (m
, t
));
1729 require_atom (ATOM_NAME
);
1736 /* Specialization of mio_name. */
1738 #define DECL_MIO_NAME(TYPE) \
1739 static inline TYPE \
1740 MIO_NAME(TYPE) (TYPE t, const mstring *m) \
1742 return (TYPE) mio_name ((int) t, m); \
1744 #define MIO_NAME(TYPE) mio_name_##TYPE
1749 if (iomode
== IO_OUTPUT
)
1750 write_atom (ATOM_LPAREN
, NULL
);
1752 require_atom (ATOM_LPAREN
);
1759 if (iomode
== IO_OUTPUT
)
1760 write_atom (ATOM_RPAREN
, NULL
);
1762 require_atom (ATOM_RPAREN
);
1767 mio_integer (int *ip
)
1769 if (iomode
== IO_OUTPUT
)
1771 HOST_WIDE_INT hwi
= *ip
;
1772 write_atom (ATOM_INTEGER
, &hwi
);
1776 require_atom (ATOM_INTEGER
);
1782 mio_hwi (HOST_WIDE_INT
*hwi
)
1784 if (iomode
== IO_OUTPUT
)
1785 write_atom (ATOM_INTEGER
, hwi
);
1788 require_atom (ATOM_INTEGER
);
1794 /* Read or write a gfc_intrinsic_op value. */
1797 mio_intrinsic_op (gfc_intrinsic_op
* op
)
1799 /* FIXME: Would be nicer to do this via the operators symbolic name. */
1800 if (iomode
== IO_OUTPUT
)
1802 HOST_WIDE_INT converted
= (HOST_WIDE_INT
) *op
;
1803 write_atom (ATOM_INTEGER
, &converted
);
1807 require_atom (ATOM_INTEGER
);
1808 *op
= (gfc_intrinsic_op
) atom_int
;
1813 /* Read or write a character pointer that points to a string on the heap. */
1816 mio_allocated_string (const char *s
)
1818 if (iomode
== IO_OUTPUT
)
1820 write_atom (ATOM_STRING
, s
);
1825 require_atom (ATOM_STRING
);
1831 /* Functions for quoting and unquoting strings. */
1834 quote_string (const gfc_char_t
*s
, const size_t slength
)
1836 const gfc_char_t
*p
;
1840 /* Calculate the length we'll need: a backslash takes two ("\\"),
1841 non-printable characters take 10 ("\Uxxxxxxxx") and others take 1. */
1842 for (p
= s
, i
= 0; i
< slength
; p
++, i
++)
1846 else if (!gfc_wide_is_printable (*p
))
1852 q
= res
= XCNEWVEC (char, len
+ 1);
1853 for (p
= s
, i
= 0; i
< slength
; p
++, i
++)
1856 *q
++ = '\\', *q
++ = '\\';
1857 else if (!gfc_wide_is_printable (*p
))
1859 sprintf (q
, "\\U%08" HOST_WIDE_INT_PRINT
"x",
1860 (unsigned HOST_WIDE_INT
) *p
);
1864 *q
++ = (unsigned char) *p
;
1872 unquote_string (const char *s
)
1878 for (p
= s
, len
= 0; *p
; p
++, len
++)
1885 else if (p
[1] == 'U')
1886 p
+= 9; /* That is a "\U????????". */
1888 gfc_internal_error ("unquote_string(): got bad string");
1891 res
= gfc_get_wide_string (len
+ 1);
1892 for (i
= 0, p
= s
; i
< len
; i
++, p
++)
1897 res
[i
] = (unsigned char) *p
;
1898 else if (p
[1] == '\\')
1900 res
[i
] = (unsigned char) '\\';
1905 /* We read the 8-digits hexadecimal constant that follows. */
1910 gcc_assert (p
[1] == 'U');
1911 for (j
= 0; j
< 8; j
++)
1914 gcc_assert (sscanf (&p
[j
+2], "%01x", &n
) == 1);
1928 /* Read or write a character pointer that points to a wide string on the
1929 heap, performing quoting/unquoting of nonprintable characters using the
1930 form \U???????? (where each ? is a hexadecimal digit).
1931 Length is the length of the string, only known and used in output mode. */
1933 static const gfc_char_t
*
1934 mio_allocated_wide_string (const gfc_char_t
*s
, const size_t length
)
1936 if (iomode
== IO_OUTPUT
)
1938 char *quoted
= quote_string (s
, length
);
1939 write_atom (ATOM_STRING
, quoted
);
1945 gfc_char_t
*unquoted
;
1947 require_atom (ATOM_STRING
);
1948 unquoted
= unquote_string (atom_string
);
1955 /* Read or write a string that is in static memory. */
1958 mio_pool_string (const char **stringp
)
1960 /* TODO: one could write the string only once, and refer to it via a
1963 /* As a special case we have to deal with a NULL string. This
1964 happens for the 'module' member of 'gfc_symbol's that are not in a
1965 module. We read / write these as the empty string. */
1966 if (iomode
== IO_OUTPUT
)
1968 const char *p
= *stringp
== NULL
? "" : *stringp
;
1969 write_atom (ATOM_STRING
, p
);
1973 require_atom (ATOM_STRING
);
1974 *stringp
= (atom_string
[0] == '\0'
1975 ? NULL
: gfc_get_string ("%s", atom_string
));
1981 /* Read or write a string that is inside of some already-allocated
1985 mio_internal_string (char *string
)
1987 if (iomode
== IO_OUTPUT
)
1988 write_atom (ATOM_STRING
, string
);
1991 require_atom (ATOM_STRING
);
1992 strcpy (string
, atom_string
);
1999 { AB_ALLOCATABLE
, AB_DIMENSION
, AB_EXTERNAL
, AB_INTRINSIC
, AB_OPTIONAL
,
2000 AB_POINTER
, AB_TARGET
, AB_DUMMY
, AB_RESULT
, AB_DATA
,
2001 AB_IN_NAMELIST
, AB_IN_COMMON
, AB_FUNCTION
, AB_SUBROUTINE
, AB_SEQUENCE
,
2002 AB_ELEMENTAL
, AB_PURE
, AB_RECURSIVE
, AB_GENERIC
, AB_ALWAYS_EXPLICIT
,
2003 AB_CRAY_POINTER
, AB_CRAY_POINTEE
, AB_THREADPRIVATE
,
2004 AB_ALLOC_COMP
, AB_POINTER_COMP
, AB_PROC_POINTER_COMP
, AB_PRIVATE_COMP
,
2005 AB_VALUE
, AB_VOLATILE
, AB_PROTECTED
, AB_LOCK_COMP
, AB_EVENT_COMP
,
2006 AB_IS_BIND_C
, AB_IS_C_INTEROP
, AB_IS_ISO_C
, AB_ABSTRACT
, AB_ZERO_COMP
,
2007 AB_IS_CLASS
, AB_PROCEDURE
, AB_PROC_POINTER
, AB_ASYNCHRONOUS
, AB_CODIMENSION
,
2008 AB_COARRAY_COMP
, AB_VTYPE
, AB_VTAB
, AB_CONTIGUOUS
, AB_CLASS_POINTER
,
2009 AB_IMPLICIT_PURE
, AB_ARTIFICIAL
, AB_UNLIMITED_POLY
, AB_OMP_DECLARE_TARGET
,
2010 AB_ARRAY_OUTER_DEPENDENCY
, AB_MODULE_PROCEDURE
, AB_OACC_DECLARE_CREATE
,
2011 AB_OACC_DECLARE_COPYIN
, AB_OACC_DECLARE_DEVICEPTR
,
2012 AB_OACC_DECLARE_DEVICE_RESIDENT
, AB_OACC_DECLARE_LINK
,
2013 AB_OMP_DECLARE_TARGET_LINK
, AB_PDT_KIND
, AB_PDT_LEN
, AB_PDT_TYPE
,
2014 AB_PDT_TEMPLATE
, AB_PDT_ARRAY
, AB_PDT_STRING
2017 static const mstring attr_bits
[] =
2019 minit ("ALLOCATABLE", AB_ALLOCATABLE
),
2020 minit ("ARTIFICIAL", AB_ARTIFICIAL
),
2021 minit ("ASYNCHRONOUS", AB_ASYNCHRONOUS
),
2022 minit ("DIMENSION", AB_DIMENSION
),
2023 minit ("CODIMENSION", AB_CODIMENSION
),
2024 minit ("CONTIGUOUS", AB_CONTIGUOUS
),
2025 minit ("EXTERNAL", AB_EXTERNAL
),
2026 minit ("INTRINSIC", AB_INTRINSIC
),
2027 minit ("OPTIONAL", AB_OPTIONAL
),
2028 minit ("POINTER", AB_POINTER
),
2029 minit ("VOLATILE", AB_VOLATILE
),
2030 minit ("TARGET", AB_TARGET
),
2031 minit ("THREADPRIVATE", AB_THREADPRIVATE
),
2032 minit ("DUMMY", AB_DUMMY
),
2033 minit ("RESULT", AB_RESULT
),
2034 minit ("DATA", AB_DATA
),
2035 minit ("IN_NAMELIST", AB_IN_NAMELIST
),
2036 minit ("IN_COMMON", AB_IN_COMMON
),
2037 minit ("FUNCTION", AB_FUNCTION
),
2038 minit ("SUBROUTINE", AB_SUBROUTINE
),
2039 minit ("SEQUENCE", AB_SEQUENCE
),
2040 minit ("ELEMENTAL", AB_ELEMENTAL
),
2041 minit ("PURE", AB_PURE
),
2042 minit ("RECURSIVE", AB_RECURSIVE
),
2043 minit ("GENERIC", AB_GENERIC
),
2044 minit ("ALWAYS_EXPLICIT", AB_ALWAYS_EXPLICIT
),
2045 minit ("CRAY_POINTER", AB_CRAY_POINTER
),
2046 minit ("CRAY_POINTEE", AB_CRAY_POINTEE
),
2047 minit ("IS_BIND_C", AB_IS_BIND_C
),
2048 minit ("IS_C_INTEROP", AB_IS_C_INTEROP
),
2049 minit ("IS_ISO_C", AB_IS_ISO_C
),
2050 minit ("VALUE", AB_VALUE
),
2051 minit ("ALLOC_COMP", AB_ALLOC_COMP
),
2052 minit ("COARRAY_COMP", AB_COARRAY_COMP
),
2053 minit ("LOCK_COMP", AB_LOCK_COMP
),
2054 minit ("EVENT_COMP", AB_EVENT_COMP
),
2055 minit ("POINTER_COMP", AB_POINTER_COMP
),
2056 minit ("PROC_POINTER_COMP", AB_PROC_POINTER_COMP
),
2057 minit ("PRIVATE_COMP", AB_PRIVATE_COMP
),
2058 minit ("ZERO_COMP", AB_ZERO_COMP
),
2059 minit ("PROTECTED", AB_PROTECTED
),
2060 minit ("ABSTRACT", AB_ABSTRACT
),
2061 minit ("IS_CLASS", AB_IS_CLASS
),
2062 minit ("PROCEDURE", AB_PROCEDURE
),
2063 minit ("PROC_POINTER", AB_PROC_POINTER
),
2064 minit ("VTYPE", AB_VTYPE
),
2065 minit ("VTAB", AB_VTAB
),
2066 minit ("CLASS_POINTER", AB_CLASS_POINTER
),
2067 minit ("IMPLICIT_PURE", AB_IMPLICIT_PURE
),
2068 minit ("UNLIMITED_POLY", AB_UNLIMITED_POLY
),
2069 minit ("OMP_DECLARE_TARGET", AB_OMP_DECLARE_TARGET
),
2070 minit ("ARRAY_OUTER_DEPENDENCY", AB_ARRAY_OUTER_DEPENDENCY
),
2071 minit ("MODULE_PROCEDURE", AB_MODULE_PROCEDURE
),
2072 minit ("OACC_DECLARE_CREATE", AB_OACC_DECLARE_CREATE
),
2073 minit ("OACC_DECLARE_COPYIN", AB_OACC_DECLARE_COPYIN
),
2074 minit ("OACC_DECLARE_DEVICEPTR", AB_OACC_DECLARE_DEVICEPTR
),
2075 minit ("OACC_DECLARE_DEVICE_RESIDENT", AB_OACC_DECLARE_DEVICE_RESIDENT
),
2076 minit ("OACC_DECLARE_LINK", AB_OACC_DECLARE_LINK
),
2077 minit ("OMP_DECLARE_TARGET_LINK", AB_OMP_DECLARE_TARGET_LINK
),
2078 minit ("PDT_KIND", AB_PDT_KIND
),
2079 minit ("PDT_LEN", AB_PDT_LEN
),
2080 minit ("PDT_TYPE", AB_PDT_TYPE
),
2081 minit ("PDT_TEMPLATE", AB_PDT_TEMPLATE
),
2082 minit ("PDT_ARRAY", AB_PDT_ARRAY
),
2083 minit ("PDT_STRING", AB_PDT_STRING
),
2087 /* For binding attributes. */
2088 static const mstring binding_passing
[] =
2091 minit ("NOPASS", 1),
2094 static const mstring binding_overriding
[] =
2096 minit ("OVERRIDABLE", 0),
2097 minit ("NON_OVERRIDABLE", 1),
2098 minit ("DEFERRED", 2),
2101 static const mstring binding_generic
[] =
2103 minit ("SPECIFIC", 0),
2104 minit ("GENERIC", 1),
2107 static const mstring binding_ppc
[] =
2109 minit ("NO_PPC", 0),
2114 /* Specialization of mio_name. */
2115 DECL_MIO_NAME (ab_attribute
)
2116 DECL_MIO_NAME (ar_type
)
2117 DECL_MIO_NAME (array_type
)
2119 DECL_MIO_NAME (expr_t
)
2120 DECL_MIO_NAME (gfc_access
)
2121 DECL_MIO_NAME (gfc_intrinsic_op
)
2122 DECL_MIO_NAME (ifsrc
)
2123 DECL_MIO_NAME (save_state
)
2124 DECL_MIO_NAME (procedure_type
)
2125 DECL_MIO_NAME (ref_type
)
2126 DECL_MIO_NAME (sym_flavor
)
2127 DECL_MIO_NAME (sym_intent
)
2128 DECL_MIO_NAME (inquiry_type
)
2129 #undef DECL_MIO_NAME
2131 /* Symbol attributes are stored in list with the first three elements
2132 being the enumerated fields, while the remaining elements (if any)
2133 indicate the individual attribute bits. The access field is not
2134 saved-- it controls what symbols are exported when a module is
2138 mio_symbol_attribute (symbol_attribute
*attr
)
2141 unsigned ext_attr
,extension_level
;
2145 attr
->flavor
= MIO_NAME (sym_flavor
) (attr
->flavor
, flavors
);
2146 attr
->intent
= MIO_NAME (sym_intent
) (attr
->intent
, intents
);
2147 attr
->proc
= MIO_NAME (procedure_type
) (attr
->proc
, procedures
);
2148 attr
->if_source
= MIO_NAME (ifsrc
) (attr
->if_source
, ifsrc_types
);
2149 attr
->save
= MIO_NAME (save_state
) (attr
->save
, save_status
);
2151 ext_attr
= attr
->ext_attr
;
2152 mio_integer ((int *) &ext_attr
);
2153 attr
->ext_attr
= ext_attr
;
2155 extension_level
= attr
->extension
;
2156 mio_integer ((int *) &extension_level
);
2157 attr
->extension
= extension_level
;
2159 if (iomode
== IO_OUTPUT
)
2161 if (attr
->allocatable
)
2162 MIO_NAME (ab_attribute
) (AB_ALLOCATABLE
, attr_bits
);
2163 if (attr
->artificial
)
2164 MIO_NAME (ab_attribute
) (AB_ARTIFICIAL
, attr_bits
);
2165 if (attr
->asynchronous
)
2166 MIO_NAME (ab_attribute
) (AB_ASYNCHRONOUS
, attr_bits
);
2167 if (attr
->dimension
)
2168 MIO_NAME (ab_attribute
) (AB_DIMENSION
, attr_bits
);
2169 if (attr
->codimension
)
2170 MIO_NAME (ab_attribute
) (AB_CODIMENSION
, attr_bits
);
2171 if (attr
->contiguous
)
2172 MIO_NAME (ab_attribute
) (AB_CONTIGUOUS
, attr_bits
);
2174 MIO_NAME (ab_attribute
) (AB_EXTERNAL
, attr_bits
);
2175 if (attr
->intrinsic
)
2176 MIO_NAME (ab_attribute
) (AB_INTRINSIC
, attr_bits
);
2178 MIO_NAME (ab_attribute
) (AB_OPTIONAL
, attr_bits
);
2180 MIO_NAME (ab_attribute
) (AB_POINTER
, attr_bits
);
2181 if (attr
->class_pointer
)
2182 MIO_NAME (ab_attribute
) (AB_CLASS_POINTER
, attr_bits
);
2183 if (attr
->is_protected
)
2184 MIO_NAME (ab_attribute
) (AB_PROTECTED
, attr_bits
);
2186 MIO_NAME (ab_attribute
) (AB_VALUE
, attr_bits
);
2187 if (attr
->volatile_
)
2188 MIO_NAME (ab_attribute
) (AB_VOLATILE
, attr_bits
);
2190 MIO_NAME (ab_attribute
) (AB_TARGET
, attr_bits
);
2191 if (attr
->threadprivate
)
2192 MIO_NAME (ab_attribute
) (AB_THREADPRIVATE
, attr_bits
);
2194 MIO_NAME (ab_attribute
) (AB_DUMMY
, attr_bits
);
2196 MIO_NAME (ab_attribute
) (AB_RESULT
, attr_bits
);
2197 /* We deliberately don't preserve the "entry" flag. */
2200 MIO_NAME (ab_attribute
) (AB_DATA
, attr_bits
);
2201 if (attr
->in_namelist
)
2202 MIO_NAME (ab_attribute
) (AB_IN_NAMELIST
, attr_bits
);
2203 if (attr
->in_common
)
2204 MIO_NAME (ab_attribute
) (AB_IN_COMMON
, attr_bits
);
2207 MIO_NAME (ab_attribute
) (AB_FUNCTION
, attr_bits
);
2208 if (attr
->subroutine
)
2209 MIO_NAME (ab_attribute
) (AB_SUBROUTINE
, attr_bits
);
2211 MIO_NAME (ab_attribute
) (AB_GENERIC
, attr_bits
);
2213 MIO_NAME (ab_attribute
) (AB_ABSTRACT
, attr_bits
);
2216 MIO_NAME (ab_attribute
) (AB_SEQUENCE
, attr_bits
);
2217 if (attr
->elemental
)
2218 MIO_NAME (ab_attribute
) (AB_ELEMENTAL
, attr_bits
);
2220 MIO_NAME (ab_attribute
) (AB_PURE
, attr_bits
);
2221 if (attr
->implicit_pure
)
2222 MIO_NAME (ab_attribute
) (AB_IMPLICIT_PURE
, attr_bits
);
2223 if (attr
->unlimited_polymorphic
)
2224 MIO_NAME (ab_attribute
) (AB_UNLIMITED_POLY
, attr_bits
);
2225 if (attr
->recursive
)
2226 MIO_NAME (ab_attribute
) (AB_RECURSIVE
, attr_bits
);
2227 if (attr
->always_explicit
)
2228 MIO_NAME (ab_attribute
) (AB_ALWAYS_EXPLICIT
, attr_bits
);
2229 if (attr
->cray_pointer
)
2230 MIO_NAME (ab_attribute
) (AB_CRAY_POINTER
, attr_bits
);
2231 if (attr
->cray_pointee
)
2232 MIO_NAME (ab_attribute
) (AB_CRAY_POINTEE
, attr_bits
);
2233 if (attr
->is_bind_c
)
2234 MIO_NAME(ab_attribute
) (AB_IS_BIND_C
, attr_bits
);
2235 if (attr
->is_c_interop
)
2236 MIO_NAME(ab_attribute
) (AB_IS_C_INTEROP
, attr_bits
);
2238 MIO_NAME(ab_attribute
) (AB_IS_ISO_C
, attr_bits
);
2239 if (attr
->alloc_comp
)
2240 MIO_NAME (ab_attribute
) (AB_ALLOC_COMP
, attr_bits
);
2241 if (attr
->pointer_comp
)
2242 MIO_NAME (ab_attribute
) (AB_POINTER_COMP
, attr_bits
);
2243 if (attr
->proc_pointer_comp
)
2244 MIO_NAME (ab_attribute
) (AB_PROC_POINTER_COMP
, attr_bits
);
2245 if (attr
->private_comp
)
2246 MIO_NAME (ab_attribute
) (AB_PRIVATE_COMP
, attr_bits
);
2247 if (attr
->coarray_comp
)
2248 MIO_NAME (ab_attribute
) (AB_COARRAY_COMP
, attr_bits
);
2249 if (attr
->lock_comp
)
2250 MIO_NAME (ab_attribute
) (AB_LOCK_COMP
, attr_bits
);
2251 if (attr
->event_comp
)
2252 MIO_NAME (ab_attribute
) (AB_EVENT_COMP
, attr_bits
);
2253 if (attr
->zero_comp
)
2254 MIO_NAME (ab_attribute
) (AB_ZERO_COMP
, attr_bits
);
2256 MIO_NAME (ab_attribute
) (AB_IS_CLASS
, attr_bits
);
2257 if (attr
->procedure
)
2258 MIO_NAME (ab_attribute
) (AB_PROCEDURE
, attr_bits
);
2259 if (attr
->proc_pointer
)
2260 MIO_NAME (ab_attribute
) (AB_PROC_POINTER
, attr_bits
);
2262 MIO_NAME (ab_attribute
) (AB_VTYPE
, attr_bits
);
2264 MIO_NAME (ab_attribute
) (AB_VTAB
, attr_bits
);
2265 if (attr
->omp_declare_target
)
2266 MIO_NAME (ab_attribute
) (AB_OMP_DECLARE_TARGET
, attr_bits
);
2267 if (attr
->array_outer_dependency
)
2268 MIO_NAME (ab_attribute
) (AB_ARRAY_OUTER_DEPENDENCY
, attr_bits
);
2269 if (attr
->module_procedure
)
2270 MIO_NAME (ab_attribute
) (AB_MODULE_PROCEDURE
, attr_bits
);
2271 if (attr
->oacc_declare_create
)
2272 MIO_NAME (ab_attribute
) (AB_OACC_DECLARE_CREATE
, attr_bits
);
2273 if (attr
->oacc_declare_copyin
)
2274 MIO_NAME (ab_attribute
) (AB_OACC_DECLARE_COPYIN
, attr_bits
);
2275 if (attr
->oacc_declare_deviceptr
)
2276 MIO_NAME (ab_attribute
) (AB_OACC_DECLARE_DEVICEPTR
, attr_bits
);
2277 if (attr
->oacc_declare_device_resident
)
2278 MIO_NAME (ab_attribute
) (AB_OACC_DECLARE_DEVICE_RESIDENT
, attr_bits
);
2279 if (attr
->oacc_declare_link
)
2280 MIO_NAME (ab_attribute
) (AB_OACC_DECLARE_LINK
, attr_bits
);
2281 if (attr
->omp_declare_target_link
)
2282 MIO_NAME (ab_attribute
) (AB_OMP_DECLARE_TARGET_LINK
, attr_bits
);
2284 MIO_NAME (ab_attribute
) (AB_PDT_KIND
, attr_bits
);
2286 MIO_NAME (ab_attribute
) (AB_PDT_LEN
, attr_bits
);
2288 MIO_NAME (ab_attribute
) (AB_PDT_TYPE
, attr_bits
);
2289 if (attr
->pdt_template
)
2290 MIO_NAME (ab_attribute
) (AB_PDT_TEMPLATE
, attr_bits
);
2291 if (attr
->pdt_array
)
2292 MIO_NAME (ab_attribute
) (AB_PDT_ARRAY
, attr_bits
);
2293 if (attr
->pdt_string
)
2294 MIO_NAME (ab_attribute
) (AB_PDT_STRING
, attr_bits
);
2304 if (t
== ATOM_RPAREN
)
2307 bad_module ("Expected attribute bit name");
2309 switch ((ab_attribute
) find_enum (attr_bits
))
2311 case AB_ALLOCATABLE
:
2312 attr
->allocatable
= 1;
2315 attr
->artificial
= 1;
2317 case AB_ASYNCHRONOUS
:
2318 attr
->asynchronous
= 1;
2321 attr
->dimension
= 1;
2323 case AB_CODIMENSION
:
2324 attr
->codimension
= 1;
2327 attr
->contiguous
= 1;
2333 attr
->intrinsic
= 1;
2341 case AB_CLASS_POINTER
:
2342 attr
->class_pointer
= 1;
2345 attr
->is_protected
= 1;
2351 attr
->volatile_
= 1;
2356 case AB_THREADPRIVATE
:
2357 attr
->threadprivate
= 1;
2368 case AB_IN_NAMELIST
:
2369 attr
->in_namelist
= 1;
2372 attr
->in_common
= 1;
2378 attr
->subroutine
= 1;
2390 attr
->elemental
= 1;
2395 case AB_IMPLICIT_PURE
:
2396 attr
->implicit_pure
= 1;
2398 case AB_UNLIMITED_POLY
:
2399 attr
->unlimited_polymorphic
= 1;
2402 attr
->recursive
= 1;
2404 case AB_ALWAYS_EXPLICIT
:
2405 attr
->always_explicit
= 1;
2407 case AB_CRAY_POINTER
:
2408 attr
->cray_pointer
= 1;
2410 case AB_CRAY_POINTEE
:
2411 attr
->cray_pointee
= 1;
2414 attr
->is_bind_c
= 1;
2416 case AB_IS_C_INTEROP
:
2417 attr
->is_c_interop
= 1;
2423 attr
->alloc_comp
= 1;
2425 case AB_COARRAY_COMP
:
2426 attr
->coarray_comp
= 1;
2429 attr
->lock_comp
= 1;
2432 attr
->event_comp
= 1;
2434 case AB_POINTER_COMP
:
2435 attr
->pointer_comp
= 1;
2437 case AB_PROC_POINTER_COMP
:
2438 attr
->proc_pointer_comp
= 1;
2440 case AB_PRIVATE_COMP
:
2441 attr
->private_comp
= 1;
2444 attr
->zero_comp
= 1;
2450 attr
->procedure
= 1;
2452 case AB_PROC_POINTER
:
2453 attr
->proc_pointer
= 1;
2461 case AB_OMP_DECLARE_TARGET
:
2462 attr
->omp_declare_target
= 1;
2464 case AB_OMP_DECLARE_TARGET_LINK
:
2465 attr
->omp_declare_target_link
= 1;
2467 case AB_ARRAY_OUTER_DEPENDENCY
:
2468 attr
->array_outer_dependency
=1;
2470 case AB_MODULE_PROCEDURE
:
2471 attr
->module_procedure
=1;
2473 case AB_OACC_DECLARE_CREATE
:
2474 attr
->oacc_declare_create
= 1;
2476 case AB_OACC_DECLARE_COPYIN
:
2477 attr
->oacc_declare_copyin
= 1;
2479 case AB_OACC_DECLARE_DEVICEPTR
:
2480 attr
->oacc_declare_deviceptr
= 1;
2482 case AB_OACC_DECLARE_DEVICE_RESIDENT
:
2483 attr
->oacc_declare_device_resident
= 1;
2485 case AB_OACC_DECLARE_LINK
:
2486 attr
->oacc_declare_link
= 1;
2497 case AB_PDT_TEMPLATE
:
2498 attr
->pdt_template
= 1;
2501 attr
->pdt_array
= 1;
2504 attr
->pdt_string
= 1;
2512 static const mstring bt_types
[] = {
2513 minit ("INTEGER", BT_INTEGER
),
2514 minit ("REAL", BT_REAL
),
2515 minit ("COMPLEX", BT_COMPLEX
),
2516 minit ("LOGICAL", BT_LOGICAL
),
2517 minit ("CHARACTER", BT_CHARACTER
),
2518 minit ("UNION", BT_UNION
),
2519 minit ("DERIVED", BT_DERIVED
),
2520 minit ("CLASS", BT_CLASS
),
2521 minit ("PROCEDURE", BT_PROCEDURE
),
2522 minit ("UNKNOWN", BT_UNKNOWN
),
2523 minit ("VOID", BT_VOID
),
2524 minit ("ASSUMED", BT_ASSUMED
),
2530 mio_charlen (gfc_charlen
**clp
)
2536 if (iomode
== IO_OUTPUT
)
2540 mio_expr (&cl
->length
);
2544 if (peek_atom () != ATOM_RPAREN
)
2546 cl
= gfc_new_charlen (gfc_current_ns
, NULL
);
2547 mio_expr (&cl
->length
);
2556 /* See if a name is a generated name. */
2559 check_unique_name (const char *name
)
2561 return *name
== '@';
2566 mio_typespec (gfc_typespec
*ts
)
2570 ts
->type
= MIO_NAME (bt
) (ts
->type
, bt_types
);
2572 if (!gfc_bt_struct (ts
->type
) && ts
->type
!= BT_CLASS
)
2573 mio_integer (&ts
->kind
);
2575 mio_symbol_ref (&ts
->u
.derived
);
2577 mio_symbol_ref (&ts
->interface
);
2579 /* Add info for C interop and is_iso_c. */
2580 mio_integer (&ts
->is_c_interop
);
2581 mio_integer (&ts
->is_iso_c
);
2583 /* If the typespec is for an identifier either from iso_c_binding, or
2584 a constant that was initialized to an identifier from it, use the
2585 f90_type. Otherwise, use the ts->type, since it shouldn't matter. */
2587 ts
->f90_type
= MIO_NAME (bt
) (ts
->f90_type
, bt_types
);
2589 ts
->f90_type
= MIO_NAME (bt
) (ts
->type
, bt_types
);
2591 if (ts
->type
!= BT_CHARACTER
)
2593 /* ts->u.cl is only valid for BT_CHARACTER. */
2598 mio_charlen (&ts
->u
.cl
);
2600 /* So as not to disturb the existing API, use an ATOM_NAME to
2601 transmit deferred characteristic for characters (F2003). */
2602 if (iomode
== IO_OUTPUT
)
2604 if (ts
->type
== BT_CHARACTER
&& ts
->deferred
)
2605 write_atom (ATOM_NAME
, "DEFERRED_CL");
2607 else if (peek_atom () != ATOM_RPAREN
)
2609 if (parse_atom () != ATOM_NAME
)
2610 bad_module ("Expected string");
2618 static const mstring array_spec_types
[] = {
2619 minit ("EXPLICIT", AS_EXPLICIT
),
2620 minit ("ASSUMED_RANK", AS_ASSUMED_RANK
),
2621 minit ("ASSUMED_SHAPE", AS_ASSUMED_SHAPE
),
2622 minit ("DEFERRED", AS_DEFERRED
),
2623 minit ("ASSUMED_SIZE", AS_ASSUMED_SIZE
),
2629 mio_array_spec (gfc_array_spec
**asp
)
2636 if (iomode
== IO_OUTPUT
)
2644 /* mio_integer expects nonnegative values. */
2645 rank
= as
->rank
> 0 ? as
->rank
: 0;
2646 mio_integer (&rank
);
2650 if (peek_atom () == ATOM_RPAREN
)
2656 *asp
= as
= gfc_get_array_spec ();
2657 mio_integer (&as
->rank
);
2660 mio_integer (&as
->corank
);
2661 as
->type
= MIO_NAME (array_type
) (as
->type
, array_spec_types
);
2663 if (iomode
== IO_INPUT
&& as
->type
== AS_ASSUMED_RANK
)
2665 if (iomode
== IO_INPUT
&& as
->corank
)
2666 as
->cotype
= (as
->type
== AS_DEFERRED
) ? AS_DEFERRED
: AS_EXPLICIT
;
2668 if (as
->rank
+ as
->corank
> 0)
2669 for (i
= 0; i
< as
->rank
+ as
->corank
; i
++)
2671 mio_expr (&as
->lower
[i
]);
2672 mio_expr (&as
->upper
[i
]);
2680 /* Given a pointer to an array reference structure (which lives in a
2681 gfc_ref structure), find the corresponding array specification
2682 structure. Storing the pointer in the ref structure doesn't quite
2683 work when loading from a module. Generating code for an array
2684 reference also needs more information than just the array spec. */
2686 static const mstring array_ref_types
[] = {
2687 minit ("FULL", AR_FULL
),
2688 minit ("ELEMENT", AR_ELEMENT
),
2689 minit ("SECTION", AR_SECTION
),
2695 mio_array_ref (gfc_array_ref
*ar
)
2700 ar
->type
= MIO_NAME (ar_type
) (ar
->type
, array_ref_types
);
2701 mio_integer (&ar
->dimen
);
2709 for (i
= 0; i
< ar
->dimen
; i
++)
2710 mio_expr (&ar
->start
[i
]);
2715 for (i
= 0; i
< ar
->dimen
; i
++)
2717 mio_expr (&ar
->start
[i
]);
2718 mio_expr (&ar
->end
[i
]);
2719 mio_expr (&ar
->stride
[i
]);
2725 gfc_internal_error ("mio_array_ref(): Unknown array ref");
2728 /* Unfortunately, ar->dimen_type is an anonymous enumerated type so
2729 we can't call mio_integer directly. Instead loop over each element
2730 and cast it to/from an integer. */
2731 if (iomode
== IO_OUTPUT
)
2733 for (i
= 0; i
< ar
->dimen
; i
++)
2735 HOST_WIDE_INT tmp
= (HOST_WIDE_INT
)ar
->dimen_type
[i
];
2736 write_atom (ATOM_INTEGER
, &tmp
);
2741 for (i
= 0; i
< ar
->dimen
; i
++)
2743 require_atom (ATOM_INTEGER
);
2744 ar
->dimen_type
[i
] = (enum gfc_array_ref_dimen_type
) atom_int
;
2748 if (iomode
== IO_INPUT
)
2750 ar
->where
= gfc_current_locus
;
2752 for (i
= 0; i
< ar
->dimen
; i
++)
2753 ar
->c_where
[i
] = gfc_current_locus
;
2760 /* Saves or restores a pointer. The pointer is converted back and
2761 forth from an integer. We return the pointer_info pointer so that
2762 the caller can take additional action based on the pointer type. */
2764 static pointer_info
*
2765 mio_pointer_ref (void *gp
)
2769 if (iomode
== IO_OUTPUT
)
2771 p
= get_pointer (*((char **) gp
));
2772 HOST_WIDE_INT hwi
= p
->integer
;
2773 write_atom (ATOM_INTEGER
, &hwi
);
2777 require_atom (ATOM_INTEGER
);
2778 p
= add_fixup (atom_int
, gp
);
2785 /* Save and load references to components that occur within
2786 expressions. We have to describe these references by a number and
2787 by name. The number is necessary for forward references during
2788 reading, and the name is necessary if the symbol already exists in
2789 the namespace and is not loaded again. */
2792 mio_component_ref (gfc_component
**cp
)
2796 p
= mio_pointer_ref (cp
);
2797 if (p
->type
== P_UNKNOWN
)
2798 p
->type
= P_COMPONENT
;
2802 static void mio_namespace_ref (gfc_namespace
**nsp
);
2803 static void mio_formal_arglist (gfc_formal_arglist
**formal
);
2804 static void mio_typebound_proc (gfc_typebound_proc
** proc
);
2805 static void mio_actual_arglist (gfc_actual_arglist
**ap
, bool pdt
);
2808 mio_component (gfc_component
*c
, int vtype
)
2814 if (iomode
== IO_OUTPUT
)
2816 p
= get_pointer (c
);
2817 mio_hwi (&p
->integer
);
2823 p
= get_integer (n
);
2824 associate_integer_pointer (p
, c
);
2827 if (p
->type
== P_UNKNOWN
)
2828 p
->type
= P_COMPONENT
;
2830 mio_pool_string (&c
->name
);
2831 mio_typespec (&c
->ts
);
2832 mio_array_spec (&c
->as
);
2834 /* PDT templates store the expression for the kind of a component here. */
2835 mio_expr (&c
->kind_expr
);
2837 /* PDT types store the component specification list here. */
2838 mio_actual_arglist (&c
->param_list
, true);
2840 mio_symbol_attribute (&c
->attr
);
2841 if (c
->ts
.type
== BT_CLASS
)
2842 c
->attr
.class_ok
= 1;
2843 c
->attr
.access
= MIO_NAME (gfc_access
) (c
->attr
.access
, access_types
);
2845 if (!vtype
|| strcmp (c
->name
, "_final") == 0
2846 || strcmp (c
->name
, "_hash") == 0)
2847 mio_expr (&c
->initializer
);
2849 if (c
->attr
.proc_pointer
)
2850 mio_typebound_proc (&c
->tb
);
2852 c
->loc
= gfc_current_locus
;
2859 mio_component_list (gfc_component
**cp
, int vtype
)
2861 gfc_component
*c
, *tail
;
2865 if (iomode
== IO_OUTPUT
)
2867 for (c
= *cp
; c
; c
= c
->next
)
2868 mio_component (c
, vtype
);
2877 if (peek_atom () == ATOM_RPAREN
)
2880 c
= gfc_get_component ();
2881 mio_component (c
, vtype
);
2897 mio_actual_arg (gfc_actual_arglist
*a
, bool pdt
)
2900 mio_pool_string (&a
->name
);
2901 mio_expr (&a
->expr
);
2903 mio_integer ((int *)&a
->spec_type
);
2909 mio_actual_arglist (gfc_actual_arglist
**ap
, bool pdt
)
2911 gfc_actual_arglist
*a
, *tail
;
2915 if (iomode
== IO_OUTPUT
)
2917 for (a
= *ap
; a
; a
= a
->next
)
2918 mio_actual_arg (a
, pdt
);
2927 if (peek_atom () != ATOM_LPAREN
)
2930 a
= gfc_get_actual_arglist ();
2938 mio_actual_arg (a
, pdt
);
2946 /* Read and write formal argument lists. */
2949 mio_formal_arglist (gfc_formal_arglist
**formal
)
2951 gfc_formal_arglist
*f
, *tail
;
2955 if (iomode
== IO_OUTPUT
)
2957 for (f
= *formal
; f
; f
= f
->next
)
2958 mio_symbol_ref (&f
->sym
);
2962 *formal
= tail
= NULL
;
2964 while (peek_atom () != ATOM_RPAREN
)
2966 f
= gfc_get_formal_arglist ();
2967 mio_symbol_ref (&f
->sym
);
2969 if (*formal
== NULL
)
2982 /* Save or restore a reference to a symbol node. */
2985 mio_symbol_ref (gfc_symbol
**symp
)
2989 p
= mio_pointer_ref (symp
);
2990 if (p
->type
== P_UNKNOWN
)
2993 if (iomode
== IO_OUTPUT
)
2995 if (p
->u
.wsym
.state
== UNREFERENCED
)
2996 p
->u
.wsym
.state
= NEEDS_WRITE
;
3000 if (p
->u
.rsym
.state
== UNUSED
)
3001 p
->u
.rsym
.state
= NEEDED
;
3007 /* Save or restore a reference to a symtree node. */
3010 mio_symtree_ref (gfc_symtree
**stp
)
3015 if (iomode
== IO_OUTPUT
)
3016 mio_symbol_ref (&(*stp
)->n
.sym
);
3019 require_atom (ATOM_INTEGER
);
3020 p
= get_integer (atom_int
);
3022 /* An unused equivalence member; make a symbol and a symtree
3024 if (in_load_equiv
&& p
->u
.rsym
.symtree
== NULL
)
3026 /* Since this is not used, it must have a unique name. */
3027 p
->u
.rsym
.symtree
= gfc_get_unique_symtree (gfc_current_ns
);
3029 /* Make the symbol. */
3030 if (p
->u
.rsym
.sym
== NULL
)
3032 p
->u
.rsym
.sym
= gfc_new_symbol (p
->u
.rsym
.true_name
,
3034 p
->u
.rsym
.sym
->module
= gfc_get_string ("%s", p
->u
.rsym
.module
);
3037 p
->u
.rsym
.symtree
->n
.sym
= p
->u
.rsym
.sym
;
3038 p
->u
.rsym
.symtree
->n
.sym
->refs
++;
3039 p
->u
.rsym
.referenced
= 1;
3041 /* If the symbol is PRIVATE and in COMMON, load_commons will
3042 generate a fixup symbol, which must be associated. */
3044 resolve_fixups (p
->fixup
, p
->u
.rsym
.sym
);
3048 if (p
->type
== P_UNKNOWN
)
3051 if (p
->u
.rsym
.state
== UNUSED
)
3052 p
->u
.rsym
.state
= NEEDED
;
3054 if (p
->u
.rsym
.symtree
!= NULL
)
3056 *stp
= p
->u
.rsym
.symtree
;
3060 f
= XCNEW (fixup_t
);
3062 f
->next
= p
->u
.rsym
.stfixup
;
3063 p
->u
.rsym
.stfixup
= f
;
3065 f
->pointer
= (void **) stp
;
3072 mio_iterator (gfc_iterator
**ip
)
3078 if (iomode
== IO_OUTPUT
)
3085 if (peek_atom () == ATOM_RPAREN
)
3091 *ip
= gfc_get_iterator ();
3096 mio_expr (&iter
->var
);
3097 mio_expr (&iter
->start
);
3098 mio_expr (&iter
->end
);
3099 mio_expr (&iter
->step
);
3107 mio_constructor (gfc_constructor_base
*cp
)
3113 if (iomode
== IO_OUTPUT
)
3115 for (c
= gfc_constructor_first (*cp
); c
; c
= gfc_constructor_next (c
))
3118 mio_expr (&c
->expr
);
3119 mio_iterator (&c
->iterator
);
3125 while (peek_atom () != ATOM_RPAREN
)
3127 c
= gfc_constructor_append_expr (cp
, NULL
, NULL
);
3130 mio_expr (&c
->expr
);
3131 mio_iterator (&c
->iterator
);
3140 static const mstring ref_types
[] = {
3141 minit ("ARRAY", REF_ARRAY
),
3142 minit ("COMPONENT", REF_COMPONENT
),
3143 minit ("SUBSTRING", REF_SUBSTRING
),
3144 minit ("INQUIRY", REF_INQUIRY
),
3148 static const mstring inquiry_types
[] = {
3149 minit ("RE", INQUIRY_RE
),
3150 minit ("IM", INQUIRY_IM
),
3151 minit ("KIND", INQUIRY_KIND
),
3152 minit ("LEN", INQUIRY_LEN
),
3158 mio_ref (gfc_ref
**rp
)
3165 r
->type
= MIO_NAME (ref_type
) (r
->type
, ref_types
);
3170 mio_array_ref (&r
->u
.ar
);
3174 mio_symbol_ref (&r
->u
.c
.sym
);
3175 mio_component_ref (&r
->u
.c
.component
);
3179 mio_expr (&r
->u
.ss
.start
);
3180 mio_expr (&r
->u
.ss
.end
);
3181 mio_charlen (&r
->u
.ss
.length
);
3185 r
->u
.i
= MIO_NAME (inquiry_type
) (r
->u
.i
, inquiry_types
);
3194 mio_ref_list (gfc_ref
**rp
)
3196 gfc_ref
*ref
, *head
, *tail
;
3200 if (iomode
== IO_OUTPUT
)
3202 for (ref
= *rp
; ref
; ref
= ref
->next
)
3209 while (peek_atom () != ATOM_RPAREN
)
3212 head
= tail
= gfc_get_ref ();
3215 tail
->next
= gfc_get_ref ();
3229 /* Read and write an integer value. */
3232 mio_gmp_integer (mpz_t
*integer
)
3236 if (iomode
== IO_INPUT
)
3238 if (parse_atom () != ATOM_STRING
)
3239 bad_module ("Expected integer string");
3241 mpz_init (*integer
);
3242 if (mpz_set_str (*integer
, atom_string
, 10))
3243 bad_module ("Error converting integer");
3249 p
= mpz_get_str (NULL
, 10, *integer
);
3250 write_atom (ATOM_STRING
, p
);
3257 mio_gmp_real (mpfr_t
*real
)
3262 if (iomode
== IO_INPUT
)
3264 if (parse_atom () != ATOM_STRING
)
3265 bad_module ("Expected real string");
3268 mpfr_set_str (*real
, atom_string
, 16, GFC_RND_MODE
);
3273 p
= mpfr_get_str (NULL
, &exponent
, 16, 0, *real
, GFC_RND_MODE
);
3275 if (mpfr_nan_p (*real
) || mpfr_inf_p (*real
))
3277 write_atom (ATOM_STRING
, p
);
3282 atom_string
= XCNEWVEC (char, strlen (p
) + 20);
3284 sprintf (atom_string
, "0.%s@%ld", p
, exponent
);
3286 /* Fix negative numbers. */
3287 if (atom_string
[2] == '-')
3289 atom_string
[0] = '-';
3290 atom_string
[1] = '0';
3291 atom_string
[2] = '.';
3294 write_atom (ATOM_STRING
, atom_string
);
3302 /* Save and restore the shape of an array constructor. */
3305 mio_shape (mpz_t
**pshape
, int rank
)
3311 /* A NULL shape is represented by (). */
3314 if (iomode
== IO_OUTPUT
)
3326 if (t
== ATOM_RPAREN
)
3333 shape
= gfc_get_shape (rank
);
3337 for (n
= 0; n
< rank
; n
++)
3338 mio_gmp_integer (&shape
[n
]);
3344 static const mstring expr_types
[] = {
3345 minit ("OP", EXPR_OP
),
3346 minit ("FUNCTION", EXPR_FUNCTION
),
3347 minit ("CONSTANT", EXPR_CONSTANT
),
3348 minit ("VARIABLE", EXPR_VARIABLE
),
3349 minit ("SUBSTRING", EXPR_SUBSTRING
),
3350 minit ("STRUCTURE", EXPR_STRUCTURE
),
3351 minit ("ARRAY", EXPR_ARRAY
),
3352 minit ("NULL", EXPR_NULL
),
3353 minit ("COMPCALL", EXPR_COMPCALL
),
3357 /* INTRINSIC_ASSIGN is missing because it is used as an index for
3358 generic operators, not in expressions. INTRINSIC_USER is also
3359 replaced by the correct function name by the time we see it. */
3361 static const mstring intrinsics
[] =
3363 minit ("UPLUS", INTRINSIC_UPLUS
),
3364 minit ("UMINUS", INTRINSIC_UMINUS
),
3365 minit ("PLUS", INTRINSIC_PLUS
),
3366 minit ("MINUS", INTRINSIC_MINUS
),
3367 minit ("TIMES", INTRINSIC_TIMES
),
3368 minit ("DIVIDE", INTRINSIC_DIVIDE
),
3369 minit ("POWER", INTRINSIC_POWER
),
3370 minit ("CONCAT", INTRINSIC_CONCAT
),
3371 minit ("AND", INTRINSIC_AND
),
3372 minit ("OR", INTRINSIC_OR
),
3373 minit ("EQV", INTRINSIC_EQV
),
3374 minit ("NEQV", INTRINSIC_NEQV
),
3375 minit ("EQ_SIGN", INTRINSIC_EQ
),
3376 minit ("EQ", INTRINSIC_EQ_OS
),
3377 minit ("NE_SIGN", INTRINSIC_NE
),
3378 minit ("NE", INTRINSIC_NE_OS
),
3379 minit ("GT_SIGN", INTRINSIC_GT
),
3380 minit ("GT", INTRINSIC_GT_OS
),
3381 minit ("GE_SIGN", INTRINSIC_GE
),
3382 minit ("GE", INTRINSIC_GE_OS
),
3383 minit ("LT_SIGN", INTRINSIC_LT
),
3384 minit ("LT", INTRINSIC_LT_OS
),
3385 minit ("LE_SIGN", INTRINSIC_LE
),
3386 minit ("LE", INTRINSIC_LE_OS
),
3387 minit ("NOT", INTRINSIC_NOT
),
3388 minit ("PARENTHESES", INTRINSIC_PARENTHESES
),
3389 minit ("USER", INTRINSIC_USER
),
3394 /* Remedy a couple of situations where the gfc_expr's can be defective. */
3397 fix_mio_expr (gfc_expr
*e
)
3399 gfc_symtree
*ns_st
= NULL
;
3402 if (iomode
!= IO_OUTPUT
)
3407 /* If this is a symtree for a symbol that came from a contained module
3408 namespace, it has a unique name and we should look in the current
3409 namespace to see if the required, non-contained symbol is available
3410 yet. If so, the latter should be written. */
3411 if (e
->symtree
->n
.sym
&& check_unique_name (e
->symtree
->name
))
3413 const char *name
= e
->symtree
->n
.sym
->name
;
3414 if (gfc_fl_struct (e
->symtree
->n
.sym
->attr
.flavor
))
3415 name
= gfc_dt_upper_string (name
);
3416 ns_st
= gfc_find_symtree (gfc_current_ns
->sym_root
, name
);
3419 /* On the other hand, if the existing symbol is the module name or the
3420 new symbol is a dummy argument, do not do the promotion. */
3421 if (ns_st
&& ns_st
->n
.sym
3422 && ns_st
->n
.sym
->attr
.flavor
!= FL_MODULE
3423 && !e
->symtree
->n
.sym
->attr
.dummy
)
3426 else if (e
->expr_type
== EXPR_FUNCTION
3427 && (e
->value
.function
.name
|| e
->value
.function
.isym
))
3431 /* In some circumstances, a function used in an initialization
3432 expression, in one use associated module, can fail to be
3433 coupled to its symtree when used in a specification
3434 expression in another module. */
3435 fname
= e
->value
.function
.esym
? e
->value
.function
.esym
->name
3436 : e
->value
.function
.isym
->name
;
3437 e
->symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, fname
);
3442 /* This is probably a reference to a private procedure from another
3443 module. To prevent a segfault, make a generic with no specific
3444 instances. If this module is used, without the required
3445 specific coming from somewhere, the appropriate error message
3447 gfc_get_symbol (fname
, gfc_current_ns
, &sym
);
3448 sym
->attr
.flavor
= FL_PROCEDURE
;
3449 sym
->attr
.generic
= 1;
3450 e
->symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, fname
);
3451 gfc_commit_symbol (sym
);
3456 /* Read and write expressions. The form "()" is allowed to indicate a
3460 mio_expr (gfc_expr
**ep
)
3469 if (iomode
== IO_OUTPUT
)
3478 MIO_NAME (expr_t
) (e
->expr_type
, expr_types
);
3483 if (t
== ATOM_RPAREN
)
3490 bad_module ("Expected expression type");
3492 e
= *ep
= gfc_get_expr ();
3493 e
->where
= gfc_current_locus
;
3494 e
->expr_type
= (expr_t
) find_enum (expr_types
);
3497 mio_typespec (&e
->ts
);
3498 mio_integer (&e
->rank
);
3502 switch (e
->expr_type
)
3506 = MIO_NAME (gfc_intrinsic_op
) (e
->value
.op
.op
, intrinsics
);
3508 switch (e
->value
.op
.op
)
3510 case INTRINSIC_UPLUS
:
3511 case INTRINSIC_UMINUS
:
3513 case INTRINSIC_PARENTHESES
:
3514 mio_expr (&e
->value
.op
.op1
);
3517 case INTRINSIC_PLUS
:
3518 case INTRINSIC_MINUS
:
3519 case INTRINSIC_TIMES
:
3520 case INTRINSIC_DIVIDE
:
3521 case INTRINSIC_POWER
:
3522 case INTRINSIC_CONCAT
:
3526 case INTRINSIC_NEQV
:
3528 case INTRINSIC_EQ_OS
:
3530 case INTRINSIC_NE_OS
:
3532 case INTRINSIC_GT_OS
:
3534 case INTRINSIC_GE_OS
:
3536 case INTRINSIC_LT_OS
:
3538 case INTRINSIC_LE_OS
:
3539 mio_expr (&e
->value
.op
.op1
);
3540 mio_expr (&e
->value
.op
.op2
);
3543 case INTRINSIC_USER
:
3544 /* INTRINSIC_USER should not appear in resolved expressions,
3545 though for UDRs we need to stream unresolved ones. */
3546 if (iomode
== IO_OUTPUT
)
3547 write_atom (ATOM_STRING
, e
->value
.op
.uop
->name
);
3550 char *name
= read_string ();
3551 const char *uop_name
= find_use_name (name
, true);
3552 if (uop_name
== NULL
)
3554 size_t len
= strlen (name
);
3555 char *name2
= XCNEWVEC (char, len
+ 2);
3556 memcpy (name2
, name
, len
);
3558 name2
[len
+ 1] = '\0';
3560 uop_name
= name
= name2
;
3562 e
->value
.op
.uop
= gfc_get_uop (uop_name
);
3565 mio_expr (&e
->value
.op
.op1
);
3566 mio_expr (&e
->value
.op
.op2
);
3570 bad_module ("Bad operator");
3576 mio_symtree_ref (&e
->symtree
);
3577 mio_actual_arglist (&e
->value
.function
.actual
, false);
3579 if (iomode
== IO_OUTPUT
)
3581 e
->value
.function
.name
3582 = mio_allocated_string (e
->value
.function
.name
);
3583 if (e
->value
.function
.esym
)
3587 else if (e
->value
.function
.isym
== NULL
)
3591 mio_integer (&flag
);
3595 mio_symbol_ref (&e
->value
.function
.esym
);
3598 mio_ref_list (&e
->ref
);
3603 write_atom (ATOM_STRING
, e
->value
.function
.isym
->name
);
3608 require_atom (ATOM_STRING
);
3609 if (atom_string
[0] == '\0')
3610 e
->value
.function
.name
= NULL
;
3612 e
->value
.function
.name
= gfc_get_string ("%s", atom_string
);
3615 mio_integer (&flag
);
3619 mio_symbol_ref (&e
->value
.function
.esym
);
3622 mio_ref_list (&e
->ref
);
3627 require_atom (ATOM_STRING
);
3628 e
->value
.function
.isym
= gfc_find_function (atom_string
);
3636 mio_symtree_ref (&e
->symtree
);
3637 mio_ref_list (&e
->ref
);
3640 case EXPR_SUBSTRING
:
3641 e
->value
.character
.string
3642 = CONST_CAST (gfc_char_t
*,
3643 mio_allocated_wide_string (e
->value
.character
.string
,
3644 e
->value
.character
.length
));
3645 mio_ref_list (&e
->ref
);
3648 case EXPR_STRUCTURE
:
3650 mio_constructor (&e
->value
.constructor
);
3651 mio_shape (&e
->shape
, e
->rank
);
3658 mio_gmp_integer (&e
->value
.integer
);
3662 gfc_set_model_kind (e
->ts
.kind
);
3663 mio_gmp_real (&e
->value
.real
);
3667 gfc_set_model_kind (e
->ts
.kind
);
3668 mio_gmp_real (&mpc_realref (e
->value
.complex));
3669 mio_gmp_real (&mpc_imagref (e
->value
.complex));
3673 mio_integer (&e
->value
.logical
);
3677 hwi
= e
->value
.character
.length
;
3679 e
->value
.character
.length
= hwi
;
3680 e
->value
.character
.string
3681 = CONST_CAST (gfc_char_t
*,
3682 mio_allocated_wide_string (e
->value
.character
.string
,
3683 e
->value
.character
.length
));
3687 bad_module ("Bad type in constant expression");
3701 /* PDT types store the expression specification list here. */
3702 mio_actual_arglist (&e
->param_list
, true);
3708 /* Read and write namelists. */
3711 mio_namelist (gfc_symbol
*sym
)
3713 gfc_namelist
*n
, *m
;
3717 if (iomode
== IO_OUTPUT
)
3719 for (n
= sym
->namelist
; n
; n
= n
->next
)
3720 mio_symbol_ref (&n
->sym
);
3725 while (peek_atom () != ATOM_RPAREN
)
3727 n
= gfc_get_namelist ();
3728 mio_symbol_ref (&n
->sym
);
3730 if (sym
->namelist
== NULL
)
3737 sym
->namelist_tail
= m
;
3744 /* Save/restore lists of gfc_interface structures. When loading an
3745 interface, we are really appending to the existing list of
3746 interfaces. Checking for duplicate and ambiguous interfaces has to
3747 be done later when all symbols have been loaded. */
3750 mio_interface_rest (gfc_interface
**ip
)
3752 gfc_interface
*tail
, *p
;
3753 pointer_info
*pi
= NULL
;
3755 if (iomode
== IO_OUTPUT
)
3758 for (p
= *ip
; p
; p
= p
->next
)
3759 mio_symbol_ref (&p
->sym
);
3774 if (peek_atom () == ATOM_RPAREN
)
3777 p
= gfc_get_interface ();
3778 p
->where
= gfc_current_locus
;
3779 pi
= mio_symbol_ref (&p
->sym
);
3795 /* Save/restore a nameless operator interface. */
3798 mio_interface (gfc_interface
**ip
)
3801 mio_interface_rest (ip
);
3805 /* Save/restore a named operator interface. */
3808 mio_symbol_interface (const char **name
, const char **module
,
3812 mio_pool_string (name
);
3813 mio_pool_string (module
);
3814 mio_interface_rest (ip
);
3819 mio_namespace_ref (gfc_namespace
**nsp
)
3824 p
= mio_pointer_ref (nsp
);
3826 if (p
->type
== P_UNKNOWN
)
3827 p
->type
= P_NAMESPACE
;
3829 if (iomode
== IO_INPUT
&& p
->integer
!= 0)
3831 ns
= (gfc_namespace
*) p
->u
.pointer
;
3834 ns
= gfc_get_namespace (NULL
, 0);
3835 associate_integer_pointer (p
, ns
);
3843 /* Save/restore the f2k_derived namespace of a derived-type symbol. */
3845 static gfc_namespace
* current_f2k_derived
;
3848 mio_typebound_proc (gfc_typebound_proc
** proc
)
3851 int overriding_flag
;
3853 if (iomode
== IO_INPUT
)
3855 *proc
= gfc_get_typebound_proc (NULL
);
3856 (*proc
)->where
= gfc_current_locus
;
3862 (*proc
)->access
= MIO_NAME (gfc_access
) ((*proc
)->access
, access_types
);
3864 /* IO the NON_OVERRIDABLE/DEFERRED combination. */
3865 gcc_assert (!((*proc
)->deferred
&& (*proc
)->non_overridable
));
3866 overriding_flag
= ((*proc
)->deferred
<< 1) | (*proc
)->non_overridable
;
3867 overriding_flag
= mio_name (overriding_flag
, binding_overriding
);
3868 (*proc
)->deferred
= ((overriding_flag
& 2) != 0);
3869 (*proc
)->non_overridable
= ((overriding_flag
& 1) != 0);
3870 gcc_assert (!((*proc
)->deferred
&& (*proc
)->non_overridable
));
3872 (*proc
)->nopass
= mio_name ((*proc
)->nopass
, binding_passing
);
3873 (*proc
)->is_generic
= mio_name ((*proc
)->is_generic
, binding_generic
);
3874 (*proc
)->ppc
= mio_name((*proc
)->ppc
, binding_ppc
);
3876 mio_pool_string (&((*proc
)->pass_arg
));
3878 flag
= (int) (*proc
)->pass_arg_num
;
3879 mio_integer (&flag
);
3880 (*proc
)->pass_arg_num
= (unsigned) flag
;
3882 if ((*proc
)->is_generic
)
3889 if (iomode
== IO_OUTPUT
)
3890 for (g
= (*proc
)->u
.generic
; g
; g
= g
->next
)
3892 iop
= (int) g
->is_operator
;
3894 mio_allocated_string (g
->specific_st
->name
);
3898 (*proc
)->u
.generic
= NULL
;
3899 while (peek_atom () != ATOM_RPAREN
)
3901 gfc_symtree
** sym_root
;
3903 g
= gfc_get_tbp_generic ();
3907 g
->is_operator
= (bool) iop
;
3909 require_atom (ATOM_STRING
);
3910 sym_root
= ¤t_f2k_derived
->tb_sym_root
;
3911 g
->specific_st
= gfc_get_tbp_symtree (sym_root
, atom_string
);
3914 g
->next
= (*proc
)->u
.generic
;
3915 (*proc
)->u
.generic
= g
;
3921 else if (!(*proc
)->ppc
)
3922 mio_symtree_ref (&(*proc
)->u
.specific
);
3927 /* Walker-callback function for this purpose. */
3929 mio_typebound_symtree (gfc_symtree
* st
)
3931 if (iomode
== IO_OUTPUT
&& !st
->n
.tb
)
3934 if (iomode
== IO_OUTPUT
)
3937 mio_allocated_string (st
->name
);
3939 /* For IO_INPUT, the above is done in mio_f2k_derived. */
3941 mio_typebound_proc (&st
->n
.tb
);
3945 /* IO a full symtree (in all depth). */
3947 mio_full_typebound_tree (gfc_symtree
** root
)
3951 if (iomode
== IO_OUTPUT
)
3952 gfc_traverse_symtree (*root
, &mio_typebound_symtree
);
3955 while (peek_atom () == ATOM_LPAREN
)
3961 require_atom (ATOM_STRING
);
3962 st
= gfc_get_tbp_symtree (root
, atom_string
);
3965 mio_typebound_symtree (st
);
3973 mio_finalizer (gfc_finalizer
**f
)
3975 if (iomode
== IO_OUTPUT
)
3978 gcc_assert ((*f
)->proc_tree
); /* Should already be resolved. */
3979 mio_symtree_ref (&(*f
)->proc_tree
);
3983 *f
= gfc_get_finalizer ();
3984 (*f
)->where
= gfc_current_locus
; /* Value should not matter. */
3987 mio_symtree_ref (&(*f
)->proc_tree
);
3988 (*f
)->proc_sym
= NULL
;
3993 mio_f2k_derived (gfc_namespace
*f2k
)
3995 current_f2k_derived
= f2k
;
3997 /* Handle the list of finalizer procedures. */
3999 if (iomode
== IO_OUTPUT
)
4002 for (f
= f2k
->finalizers
; f
; f
= f
->next
)
4007 f2k
->finalizers
= NULL
;
4008 while (peek_atom () != ATOM_RPAREN
)
4010 gfc_finalizer
*cur
= NULL
;
4011 mio_finalizer (&cur
);
4012 cur
->next
= f2k
->finalizers
;
4013 f2k
->finalizers
= cur
;
4018 /* Handle type-bound procedures. */
4019 mio_full_typebound_tree (&f2k
->tb_sym_root
);
4021 /* Type-bound user operators. */
4022 mio_full_typebound_tree (&f2k
->tb_uop_root
);
4024 /* Type-bound intrinsic operators. */
4026 if (iomode
== IO_OUTPUT
)
4029 for (op
= GFC_INTRINSIC_BEGIN
; op
!= GFC_INTRINSIC_END
; ++op
)
4031 gfc_intrinsic_op realop
;
4033 if (op
== INTRINSIC_USER
|| !f2k
->tb_op
[op
])
4037 realop
= (gfc_intrinsic_op
) op
;
4038 mio_intrinsic_op (&realop
);
4039 mio_typebound_proc (&f2k
->tb_op
[op
]);
4044 while (peek_atom () != ATOM_RPAREN
)
4046 gfc_intrinsic_op op
= GFC_INTRINSIC_BEGIN
; /* Silence GCC. */
4049 mio_intrinsic_op (&op
);
4050 mio_typebound_proc (&f2k
->tb_op
[op
]);
4057 mio_full_f2k_derived (gfc_symbol
*sym
)
4061 if (iomode
== IO_OUTPUT
)
4063 if (sym
->f2k_derived
)
4064 mio_f2k_derived (sym
->f2k_derived
);
4068 if (peek_atom () != ATOM_RPAREN
)
4072 sym
->f2k_derived
= gfc_get_namespace (NULL
, 0);
4074 /* PDT templates make use of the mechanisms for formal args
4075 and so the parameter symbols are stored in the formal
4076 namespace. Transfer the sym_root to f2k_derived and then
4077 free the formal namespace since it is uneeded. */
4078 if (sym
->attr
.pdt_template
&& sym
->formal
&& sym
->formal
->sym
)
4080 ns
= sym
->formal
->sym
->ns
;
4081 sym
->f2k_derived
->sym_root
= ns
->sym_root
;
4082 ns
->sym_root
= NULL
;
4084 gfc_free_namespace (ns
);
4088 mio_f2k_derived (sym
->f2k_derived
);
4091 gcc_assert (!sym
->f2k_derived
);
4097 static const mstring omp_declare_simd_clauses
[] =
4099 minit ("INBRANCH", 0),
4100 minit ("NOTINBRANCH", 1),
4101 minit ("SIMDLEN", 2),
4102 minit ("UNIFORM", 3),
4103 minit ("LINEAR", 4),
4104 minit ("ALIGNED", 5),
4105 minit ("LINEAR_REF", 33),
4106 minit ("LINEAR_VAL", 34),
4107 minit ("LINEAR_UVAL", 35),
4111 /* Handle !$omp declare simd. */
4114 mio_omp_declare_simd (gfc_namespace
*ns
, gfc_omp_declare_simd
**odsp
)
4116 if (iomode
== IO_OUTPUT
)
4121 else if (peek_atom () != ATOM_LPAREN
)
4124 gfc_omp_declare_simd
*ods
= *odsp
;
4127 if (iomode
== IO_OUTPUT
)
4129 write_atom (ATOM_NAME
, "OMP_DECLARE_SIMD");
4132 gfc_omp_namelist
*n
;
4134 if (ods
->clauses
->inbranch
)
4135 mio_name (0, omp_declare_simd_clauses
);
4136 if (ods
->clauses
->notinbranch
)
4137 mio_name (1, omp_declare_simd_clauses
);
4138 if (ods
->clauses
->simdlen_expr
)
4140 mio_name (2, omp_declare_simd_clauses
);
4141 mio_expr (&ods
->clauses
->simdlen_expr
);
4143 for (n
= ods
->clauses
->lists
[OMP_LIST_UNIFORM
]; n
; n
= n
->next
)
4145 mio_name (3, omp_declare_simd_clauses
);
4146 mio_symbol_ref (&n
->sym
);
4148 for (n
= ods
->clauses
->lists
[OMP_LIST_LINEAR
]; n
; n
= n
->next
)
4150 if (n
->u
.linear_op
== OMP_LINEAR_DEFAULT
)
4151 mio_name (4, omp_declare_simd_clauses
);
4153 mio_name (32 + n
->u
.linear_op
, omp_declare_simd_clauses
);
4154 mio_symbol_ref (&n
->sym
);
4155 mio_expr (&n
->expr
);
4157 for (n
= ods
->clauses
->lists
[OMP_LIST_ALIGNED
]; n
; n
= n
->next
)
4159 mio_name (5, omp_declare_simd_clauses
);
4160 mio_symbol_ref (&n
->sym
);
4161 mio_expr (&n
->expr
);
4167 gfc_omp_namelist
**ptrs
[3] = { NULL
, NULL
, NULL
};
4169 require_atom (ATOM_NAME
);
4170 *odsp
= ods
= gfc_get_omp_declare_simd ();
4171 ods
->where
= gfc_current_locus
;
4172 ods
->proc_name
= ns
->proc_name
;
4173 if (peek_atom () == ATOM_NAME
)
4175 ods
->clauses
= gfc_get_omp_clauses ();
4176 ptrs
[0] = &ods
->clauses
->lists
[OMP_LIST_UNIFORM
];
4177 ptrs
[1] = &ods
->clauses
->lists
[OMP_LIST_LINEAR
];
4178 ptrs
[2] = &ods
->clauses
->lists
[OMP_LIST_ALIGNED
];
4180 while (peek_atom () == ATOM_NAME
)
4182 gfc_omp_namelist
*n
;
4183 int t
= mio_name (0, omp_declare_simd_clauses
);
4187 case 0: ods
->clauses
->inbranch
= true; break;
4188 case 1: ods
->clauses
->notinbranch
= true; break;
4189 case 2: mio_expr (&ods
->clauses
->simdlen_expr
); break;
4193 *ptrs
[t
- 3] = n
= gfc_get_omp_namelist ();
4195 n
->where
= gfc_current_locus
;
4196 ptrs
[t
- 3] = &n
->next
;
4197 mio_symbol_ref (&n
->sym
);
4199 mio_expr (&n
->expr
);
4204 *ptrs
[1] = n
= gfc_get_omp_namelist ();
4205 n
->u
.linear_op
= (enum gfc_omp_linear_op
) (t
- 32);
4207 goto finish_namelist
;
4212 mio_omp_declare_simd (ns
, &ods
->next
);
4218 static const mstring omp_declare_reduction_stmt
[] =
4220 minit ("ASSIGN", 0),
4227 mio_omp_udr_expr (gfc_omp_udr
*udr
, gfc_symbol
**sym1
, gfc_symbol
**sym2
,
4228 gfc_namespace
*ns
, bool is_initializer
)
4230 if (iomode
== IO_OUTPUT
)
4232 if ((*sym1
)->module
== NULL
)
4234 (*sym1
)->module
= module_name
;
4235 (*sym2
)->module
= module_name
;
4237 mio_symbol_ref (sym1
);
4238 mio_symbol_ref (sym2
);
4239 if (ns
->code
->op
== EXEC_ASSIGN
)
4241 mio_name (0, omp_declare_reduction_stmt
);
4242 mio_expr (&ns
->code
->expr1
);
4243 mio_expr (&ns
->code
->expr2
);
4248 mio_name (1, omp_declare_reduction_stmt
);
4249 mio_symtree_ref (&ns
->code
->symtree
);
4250 mio_actual_arglist (&ns
->code
->ext
.actual
, false);
4252 flag
= ns
->code
->resolved_isym
!= NULL
;
4253 mio_integer (&flag
);
4255 write_atom (ATOM_STRING
, ns
->code
->resolved_isym
->name
);
4257 mio_symbol_ref (&ns
->code
->resolved_sym
);
4262 pointer_info
*p1
= mio_symbol_ref (sym1
);
4263 pointer_info
*p2
= mio_symbol_ref (sym2
);
4265 gcc_assert (p1
->u
.rsym
.ns
== p2
->u
.rsym
.ns
);
4266 gcc_assert (p1
->u
.rsym
.sym
== NULL
);
4267 /* Add hidden symbols to the symtree. */
4268 pointer_info
*q
= get_integer (p1
->u
.rsym
.ns
);
4269 q
->u
.pointer
= (void *) ns
;
4270 sym
= gfc_new_symbol (is_initializer
? "omp_priv" : "omp_out", ns
);
4272 sym
->module
= gfc_get_string ("%s", p1
->u
.rsym
.module
);
4273 associate_integer_pointer (p1
, sym
);
4274 sym
->attr
.omp_udr_artificial_var
= 1;
4275 gcc_assert (p2
->u
.rsym
.sym
== NULL
);
4276 sym
= gfc_new_symbol (is_initializer
? "omp_orig" : "omp_in", ns
);
4278 sym
->module
= gfc_get_string ("%s", p2
->u
.rsym
.module
);
4279 associate_integer_pointer (p2
, sym
);
4280 sym
->attr
.omp_udr_artificial_var
= 1;
4281 if (mio_name (0, omp_declare_reduction_stmt
) == 0)
4283 ns
->code
= gfc_get_code (EXEC_ASSIGN
);
4284 mio_expr (&ns
->code
->expr1
);
4285 mio_expr (&ns
->code
->expr2
);
4290 ns
->code
= gfc_get_code (EXEC_CALL
);
4291 mio_symtree_ref (&ns
->code
->symtree
);
4292 mio_actual_arglist (&ns
->code
->ext
.actual
, false);
4294 mio_integer (&flag
);
4297 require_atom (ATOM_STRING
);
4298 ns
->code
->resolved_isym
= gfc_find_subroutine (atom_string
);
4302 mio_symbol_ref (&ns
->code
->resolved_sym
);
4304 ns
->code
->loc
= gfc_current_locus
;
4310 /* Unlike most other routines, the address of the symbol node is already
4311 fixed on input and the name/module has already been filled in.
4312 If you update the symbol format here, don't forget to update read_module
4313 as well (look for "seek to the symbol's component list"). */
4316 mio_symbol (gfc_symbol
*sym
)
4318 int intmod
= INTMOD_NONE
;
4322 mio_symbol_attribute (&sym
->attr
);
4324 /* Note that components are always saved, even if they are supposed
4325 to be private. Component access is checked during searching. */
4326 mio_component_list (&sym
->components
, sym
->attr
.vtype
);
4327 if (sym
->components
!= NULL
)
4328 sym
->component_access
4329 = MIO_NAME (gfc_access
) (sym
->component_access
, access_types
);
4331 mio_typespec (&sym
->ts
);
4332 if (sym
->ts
.type
== BT_CLASS
)
4333 sym
->attr
.class_ok
= 1;
4335 if (iomode
== IO_OUTPUT
)
4336 mio_namespace_ref (&sym
->formal_ns
);
4339 mio_namespace_ref (&sym
->formal_ns
);
4341 sym
->formal_ns
->proc_name
= sym
;
4344 /* Save/restore common block links. */
4345 mio_symbol_ref (&sym
->common_next
);
4347 mio_formal_arglist (&sym
->formal
);
4349 if (sym
->attr
.flavor
== FL_PARAMETER
)
4350 mio_expr (&sym
->value
);
4352 mio_array_spec (&sym
->as
);
4354 mio_symbol_ref (&sym
->result
);
4356 if (sym
->attr
.cray_pointee
)
4357 mio_symbol_ref (&sym
->cp_pointer
);
4359 /* Load/save the f2k_derived namespace of a derived-type symbol. */
4360 mio_full_f2k_derived (sym
);
4362 /* PDT types store the symbol specification list here. */
4363 mio_actual_arglist (&sym
->param_list
, true);
4367 /* Add the fields that say whether this is from an intrinsic module,
4368 and if so, what symbol it is within the module. */
4369 /* mio_integer (&(sym->from_intmod)); */
4370 if (iomode
== IO_OUTPUT
)
4372 intmod
= sym
->from_intmod
;
4373 mio_integer (&intmod
);
4377 mio_integer (&intmod
);
4379 sym
->from_intmod
= current_intmod
;
4381 sym
->from_intmod
= (intmod_id
) intmod
;
4384 mio_integer (&(sym
->intmod_sym_id
));
4386 if (gfc_fl_struct (sym
->attr
.flavor
))
4387 mio_integer (&(sym
->hash_value
));
4390 && sym
->formal_ns
->proc_name
== sym
4391 && sym
->formal_ns
->entries
== NULL
)
4392 mio_omp_declare_simd (sym
->formal_ns
, &sym
->formal_ns
->omp_declare_simd
);
4398 /************************* Top level subroutines *************************/
4400 /* A recursive function to look for a specific symbol by name and by
4401 module. Whilst several symtrees might point to one symbol, its
4402 is sufficient for the purposes here than one exist. Note that
4403 generic interfaces are distinguished as are symbols that have been
4404 renamed in another module. */
4405 static gfc_symtree
*
4406 find_symbol (gfc_symtree
*st
, const char *name
,
4407 const char *module
, int generic
)
4410 gfc_symtree
*retval
, *s
;
4412 if (st
== NULL
|| st
->n
.sym
== NULL
)
4415 c
= strcmp (name
, st
->n
.sym
->name
);
4416 if (c
== 0 && st
->n
.sym
->module
4417 && strcmp (module
, st
->n
.sym
->module
) == 0
4418 && !check_unique_name (st
->name
))
4420 s
= gfc_find_symtree (gfc_current_ns
->sym_root
, name
);
4422 /* Detect symbols that are renamed by use association in another
4423 module by the absence of a symtree and null attr.use_rename,
4424 since the latter is not transmitted in the module file. */
4425 if (((!generic
&& !st
->n
.sym
->attr
.generic
)
4426 || (generic
&& st
->n
.sym
->attr
.generic
))
4427 && !(s
== NULL
&& !st
->n
.sym
->attr
.use_rename
))
4431 retval
= find_symbol (st
->left
, name
, module
, generic
);
4434 retval
= find_symbol (st
->right
, name
, module
, generic
);
4440 /* Skip a list between balanced left and right parens.
4441 By setting NEST_LEVEL one assumes that a number of NEST_LEVEL opening parens
4442 have been already parsed by hand, and the remaining of the content is to be
4443 skipped here. The default value is 0 (balanced parens). */
4446 skip_list (int nest_level
= 0)
4453 switch (parse_atom ())
4476 /* Load operator interfaces from the module. Interfaces are unusual
4477 in that they attach themselves to existing symbols. */
4480 load_operator_interfaces (void)
4483 char name
[GFC_MAX_SYMBOL_LEN
+ 1], module
[GFC_MAX_SYMBOL_LEN
+ 1];
4485 pointer_info
*pi
= NULL
;
4490 while (peek_atom () != ATOM_RPAREN
)
4494 mio_internal_string (name
);
4495 mio_internal_string (module
);
4497 n
= number_use_names (name
, true);
4500 for (i
= 1; i
<= n
; i
++)
4502 /* Decide if we need to load this one or not. */
4503 p
= find_use_name_n (name
, &i
, true);
4507 while (parse_atom () != ATOM_RPAREN
);
4513 uop
= gfc_get_uop (p
);
4514 pi
= mio_interface_rest (&uop
->op
);
4518 if (gfc_find_uop (p
, NULL
))
4520 uop
= gfc_get_uop (p
);
4521 uop
->op
= gfc_get_interface ();
4522 uop
->op
->where
= gfc_current_locus
;
4523 add_fixup (pi
->integer
, &uop
->op
->sym
);
4532 /* Load interfaces from the module. Interfaces are unusual in that
4533 they attach themselves to existing symbols. */
4536 load_generic_interfaces (void)
4539 char name
[GFC_MAX_SYMBOL_LEN
+ 1], module
[GFC_MAX_SYMBOL_LEN
+ 1];
4541 gfc_interface
*generic
= NULL
, *gen
= NULL
;
4543 bool ambiguous_set
= false;
4547 while (peek_atom () != ATOM_RPAREN
)
4551 mio_internal_string (name
);
4552 mio_internal_string (module
);
4554 n
= number_use_names (name
, false);
4555 renamed
= n
? 1 : 0;
4558 for (i
= 1; i
<= n
; i
++)
4561 /* Decide if we need to load this one or not. */
4562 p
= find_use_name_n (name
, &i
, false);
4564 if (!p
|| gfc_find_symbol (p
, NULL
, 0, &sym
))
4566 /* Skip the specific names for these cases. */
4567 while (i
== 1 && parse_atom () != ATOM_RPAREN
);
4572 st
= find_symbol (gfc_current_ns
->sym_root
,
4573 name
, module_name
, 1);
4575 /* If the symbol exists already and is being USEd without being
4576 in an ONLY clause, do not load a new symtree(11.3.2). */
4577 if (!only_flag
&& st
)
4585 if (strcmp (st
->name
, p
) != 0)
4587 st
= gfc_new_symtree (&gfc_current_ns
->sym_root
, p
);
4593 /* Since we haven't found a valid generic interface, we had
4597 gfc_get_symbol (p
, NULL
, &sym
);
4598 sym
->name
= gfc_get_string ("%s", name
);
4599 sym
->module
= module_name
;
4600 sym
->attr
.flavor
= FL_PROCEDURE
;
4601 sym
->attr
.generic
= 1;
4602 sym
->attr
.use_assoc
= 1;
4607 /* Unless sym is a generic interface, this reference
4610 st
= gfc_find_symtree (gfc_current_ns
->sym_root
, p
);
4614 if (st
&& !sym
->attr
.generic
4617 && strcmp (module
, sym
->module
))
4619 ambiguous_set
= true;
4624 sym
->attr
.use_only
= only_flag
;
4625 sym
->attr
.use_rename
= renamed
;
4629 mio_interface_rest (&sym
->generic
);
4630 generic
= sym
->generic
;
4632 else if (!sym
->generic
)
4634 sym
->generic
= generic
;
4635 sym
->attr
.generic_copy
= 1;
4638 /* If a procedure that is not generic has generic interfaces
4639 that include itself, it is generic! We need to take care
4640 to retain symbols ambiguous that were already so. */
4641 if (sym
->attr
.use_assoc
4642 && !sym
->attr
.generic
4643 && sym
->attr
.flavor
== FL_PROCEDURE
)
4645 for (gen
= generic
; gen
; gen
= gen
->next
)
4647 if (gen
->sym
== sym
)
4649 sym
->attr
.generic
= 1;
4664 /* Load common blocks. */
4669 char name
[GFC_MAX_SYMBOL_LEN
+ 1];
4674 while (peek_atom () != ATOM_RPAREN
)
4679 mio_internal_string (name
);
4681 p
= gfc_get_common (name
, 1);
4683 mio_symbol_ref (&p
->head
);
4684 mio_integer (&flags
);
4688 p
->threadprivate
= 1;
4691 /* Get whether this was a bind(c) common or not. */
4692 mio_integer (&p
->is_bind_c
);
4693 /* Get the binding label. */
4694 label
= read_string ();
4696 p
->binding_label
= IDENTIFIER_POINTER (get_identifier (label
));
4706 /* Load equivalences. The flag in_load_equiv informs mio_expr_ref of this
4707 so that unused variables are not loaded and so that the expression can
4713 gfc_equiv
*head
, *tail
, *end
, *eq
, *equiv
;
4717 in_load_equiv
= true;
4719 end
= gfc_current_ns
->equiv
;
4720 while (end
!= NULL
&& end
->next
!= NULL
)
4723 while (peek_atom () != ATOM_RPAREN
) {
4727 while(peek_atom () != ATOM_RPAREN
)
4730 head
= tail
= gfc_get_equiv ();
4733 tail
->eq
= gfc_get_equiv ();
4737 mio_pool_string (&tail
->module
);
4738 mio_expr (&tail
->expr
);
4741 /* Check for duplicate equivalences being loaded from different modules */
4743 for (equiv
= gfc_current_ns
->equiv
; equiv
; equiv
= equiv
->next
)
4745 if (equiv
->module
&& head
->module
4746 && strcmp (equiv
->module
, head
->module
) == 0)
4755 for (eq
= head
; eq
; eq
= head
)
4758 gfc_free_expr (eq
->expr
);
4764 gfc_current_ns
->equiv
= head
;
4775 in_load_equiv
= false;
4779 /* This function loads OpenMP user defined reductions. */
4781 load_omp_udrs (void)
4784 while (peek_atom () != ATOM_RPAREN
)
4786 const char *name
= NULL
, *newname
;
4790 gfc_omp_reduction_op rop
= OMP_REDUCTION_USER
;
4793 mio_pool_string (&name
);
4796 if (gfc_str_startswith (name
, "operator "))
4798 const char *p
= name
+ sizeof ("operator ") - 1;
4799 if (strcmp (p
, "+") == 0)
4800 rop
= OMP_REDUCTION_PLUS
;
4801 else if (strcmp (p
, "*") == 0)
4802 rop
= OMP_REDUCTION_TIMES
;
4803 else if (strcmp (p
, "-") == 0)
4804 rop
= OMP_REDUCTION_MINUS
;
4805 else if (strcmp (p
, ".and.") == 0)
4806 rop
= OMP_REDUCTION_AND
;
4807 else if (strcmp (p
, ".or.") == 0)
4808 rop
= OMP_REDUCTION_OR
;
4809 else if (strcmp (p
, ".eqv.") == 0)
4810 rop
= OMP_REDUCTION_EQV
;
4811 else if (strcmp (p
, ".neqv.") == 0)
4812 rop
= OMP_REDUCTION_NEQV
;
4815 if (rop
== OMP_REDUCTION_USER
&& name
[0] == '.')
4817 size_t len
= strlen (name
+ 1);
4818 altname
= XALLOCAVEC (char, len
);
4819 gcc_assert (name
[len
] == '.');
4820 memcpy (altname
, name
+ 1, len
- 1);
4821 altname
[len
- 1] = '\0';
4824 if (rop
== OMP_REDUCTION_USER
)
4825 newname
= find_use_name (altname
? altname
: name
, !!altname
);
4826 else if (only_flag
&& find_use_operator ((gfc_intrinsic_op
) rop
) == NULL
)
4828 if (newname
== NULL
)
4833 if (altname
&& newname
!= altname
)
4835 size_t len
= strlen (newname
);
4836 altname
= XALLOCAVEC (char, len
+ 3);
4838 memcpy (altname
+ 1, newname
, len
);
4839 altname
[len
+ 1] = '.';
4840 altname
[len
+ 2] = '\0';
4841 name
= gfc_get_string ("%s", altname
);
4843 st
= gfc_find_symtree (gfc_current_ns
->omp_udr_root
, name
);
4844 gfc_omp_udr
*udr
= gfc_omp_udr_find (st
, &ts
);
4847 require_atom (ATOM_INTEGER
);
4848 pointer_info
*p
= get_integer (atom_int
);
4849 if (strcmp (p
->u
.rsym
.module
, udr
->omp_out
->module
))
4851 gfc_error ("Ambiguous !$OMP DECLARE REDUCTION from "
4853 p
->u
.rsym
.module
, &gfc_current_locus
);
4854 gfc_error ("Previous !$OMP DECLARE REDUCTION from module "
4856 udr
->omp_out
->module
, &udr
->where
);
4861 udr
= gfc_get_omp_udr ();
4865 udr
->where
= gfc_current_locus
;
4866 udr
->combiner_ns
= gfc_get_namespace (gfc_current_ns
, 1);
4867 udr
->combiner_ns
->proc_name
= gfc_current_ns
->proc_name
;
4868 mio_omp_udr_expr (udr
, &udr
->omp_out
, &udr
->omp_in
, udr
->combiner_ns
,
4870 if (peek_atom () != ATOM_RPAREN
)
4872 udr
->initializer_ns
= gfc_get_namespace (gfc_current_ns
, 1);
4873 udr
->initializer_ns
->proc_name
= gfc_current_ns
->proc_name
;
4874 mio_omp_udr_expr (udr
, &udr
->omp_priv
, &udr
->omp_orig
,
4875 udr
->initializer_ns
, true);
4879 udr
->next
= st
->n
.omp_udr
;
4880 st
->n
.omp_udr
= udr
;
4884 st
= gfc_new_symtree (&gfc_current_ns
->omp_udr_root
, name
);
4885 st
->n
.omp_udr
= udr
;
4893 /* Recursive function to traverse the pointer_info tree and load a
4894 needed symbol. We return nonzero if we load a symbol and stop the
4895 traversal, because the act of loading can alter the tree. */
4898 load_needed (pointer_info
*p
)
4909 rv
|= load_needed (p
->left
);
4910 rv
|= load_needed (p
->right
);
4912 if (p
->type
!= P_SYMBOL
|| p
->u
.rsym
.state
!= NEEDED
)
4915 p
->u
.rsym
.state
= USED
;
4917 set_module_locus (&p
->u
.rsym
.where
);
4919 sym
= p
->u
.rsym
.sym
;
4922 q
= get_integer (p
->u
.rsym
.ns
);
4924 ns
= (gfc_namespace
*) q
->u
.pointer
;
4927 /* Create an interface namespace if necessary. These are
4928 the namespaces that hold the formal parameters of module
4931 ns
= gfc_get_namespace (NULL
, 0);
4932 associate_integer_pointer (q
, ns
);
4935 /* Use the module sym as 'proc_name' so that gfc_get_symbol_decl
4936 doesn't go pear-shaped if the symbol is used. */
4938 gfc_find_symbol (p
->u
.rsym
.module
, gfc_current_ns
,
4941 sym
= gfc_new_symbol (p
->u
.rsym
.true_name
, ns
);
4942 sym
->name
= gfc_dt_lower_string (p
->u
.rsym
.true_name
);
4943 sym
->module
= gfc_get_string ("%s", p
->u
.rsym
.module
);
4944 if (p
->u
.rsym
.binding_label
)
4945 sym
->binding_label
= IDENTIFIER_POINTER (get_identifier
4946 (p
->u
.rsym
.binding_label
));
4948 associate_integer_pointer (p
, sym
);
4952 sym
->attr
.use_assoc
= 1;
4954 /* Unliked derived types, a STRUCTURE may share names with other symbols.
4955 We greedily converted the the symbol name to lowercase before we knew its
4956 type, so now we must fix it. */
4957 if (sym
->attr
.flavor
== FL_STRUCT
)
4958 sym
->name
= gfc_dt_upper_string (sym
->name
);
4960 /* Mark as only or rename for later diagnosis for explicitly imported
4961 but not used warnings; don't mark internal symbols such as __vtab,
4962 __def_init etc. Only mark them if they have been explicitly loaded. */
4964 if (only_flag
&& sym
->name
[0] != '_' && sym
->name
[1] != '_')
4968 /* Search the use/rename list for the variable; if the variable is
4970 for (u
= gfc_rename_list
; u
; u
= u
->next
)
4972 if (strcmp (u
->use_name
, sym
->name
) == 0)
4974 sym
->attr
.use_only
= 1;
4980 if (p
->u
.rsym
.renamed
)
4981 sym
->attr
.use_rename
= 1;
4987 /* Recursive function for cleaning up things after a module has been read. */
4990 read_cleanup (pointer_info
*p
)
4998 read_cleanup (p
->left
);
4999 read_cleanup (p
->right
);
5001 if (p
->type
== P_SYMBOL
&& p
->u
.rsym
.state
== USED
&& !p
->u
.rsym
.referenced
)
5004 /* Add hidden symbols to the symtree. */
5005 q
= get_integer (p
->u
.rsym
.ns
);
5006 ns
= (gfc_namespace
*) q
->u
.pointer
;
5008 if (!p
->u
.rsym
.sym
->attr
.vtype
5009 && !p
->u
.rsym
.sym
->attr
.vtab
)
5010 st
= gfc_get_unique_symtree (ns
);
5013 /* There is no reason to use 'unique_symtrees' for vtabs or
5014 vtypes - their name is fine for a symtree and reduces the
5015 namespace pollution. */
5016 st
= gfc_find_symtree (ns
->sym_root
, p
->u
.rsym
.sym
->name
);
5018 st
= gfc_new_symtree (&ns
->sym_root
, p
->u
.rsym
.sym
->name
);
5021 st
->n
.sym
= p
->u
.rsym
.sym
;
5024 /* Fixup any symtree references. */
5025 p
->u
.rsym
.symtree
= st
;
5026 resolve_fixups (p
->u
.rsym
.stfixup
, st
);
5027 p
->u
.rsym
.stfixup
= NULL
;
5030 /* Free unused symbols. */
5031 if (p
->type
== P_SYMBOL
&& p
->u
.rsym
.state
== UNUSED
)
5032 gfc_free_symbol (p
->u
.rsym
.sym
);
5036 /* It is not quite enough to check for ambiguity in the symbols by
5037 the loaded symbol and the new symbol not being identical. */
5039 check_for_ambiguous (gfc_symtree
*st
, pointer_info
*info
)
5043 symbol_attribute attr
;
5046 if (gfc_current_ns
->proc_name
&& st
->name
== gfc_current_ns
->proc_name
->name
)
5048 gfc_error ("%qs of module %qs, imported at %C, is also the name of the "
5049 "current program unit", st
->name
, module_name
);
5054 rsym
= info
->u
.rsym
.sym
;
5058 if (st_sym
->attr
.vtab
|| st_sym
->attr
.vtype
)
5061 /* If the existing symbol is generic from a different module and
5062 the new symbol is generic there can be no ambiguity. */
5063 if (st_sym
->attr
.generic
5065 && st_sym
->module
!= module_name
)
5067 /* The new symbol's attributes have not yet been read. Since
5068 we need attr.generic, read it directly. */
5069 get_module_locus (&locus
);
5070 set_module_locus (&info
->u
.rsym
.where
);
5073 mio_symbol_attribute (&attr
);
5074 set_module_locus (&locus
);
5083 /* Read a module file. */
5088 module_locus operator_interfaces
, user_operators
, omp_udrs
;
5090 char name
[GFC_MAX_SYMBOL_LEN
+ 1];
5092 /* Workaround -Wmaybe-uninitialized false positive during
5093 profiledbootstrap by initializing them. */
5094 int ambiguous
= 0, j
, nuse
, symbol
= 0;
5095 pointer_info
*info
, *q
;
5096 gfc_use_rename
*u
= NULL
;
5100 get_module_locus (&operator_interfaces
); /* Skip these for now. */
5103 get_module_locus (&user_operators
);
5107 /* Skip commons and equivalences for now. */
5111 /* Skip OpenMP UDRs. */
5112 get_module_locus (&omp_udrs
);
5117 /* Create the fixup nodes for all the symbols. */
5119 while (peek_atom () != ATOM_RPAREN
)
5122 require_atom (ATOM_INTEGER
);
5123 info
= get_integer (atom_int
);
5125 info
->type
= P_SYMBOL
;
5126 info
->u
.rsym
.state
= UNUSED
;
5128 info
->u
.rsym
.true_name
= read_string ();
5129 info
->u
.rsym
.module
= read_string ();
5130 bind_label
= read_string ();
5131 if (strlen (bind_label
))
5132 info
->u
.rsym
.binding_label
= bind_label
;
5134 XDELETEVEC (bind_label
);
5136 require_atom (ATOM_INTEGER
);
5137 info
->u
.rsym
.ns
= atom_int
;
5139 get_module_locus (&info
->u
.rsym
.where
);
5141 /* See if the symbol has already been loaded by a previous module.
5142 If so, we reference the existing symbol and prevent it from
5143 being loaded again. This should not happen if the symbol being
5144 read is an index for an assumed shape dummy array (ns != 1). */
5146 sym
= find_true_name (info
->u
.rsym
.true_name
, info
->u
.rsym
.module
);
5149 || (sym
->attr
.flavor
== FL_VARIABLE
&& info
->u
.rsym
.ns
!=1))
5155 info
->u
.rsym
.state
= USED
;
5156 info
->u
.rsym
.sym
= sym
;
5157 /* The current symbol has already been loaded, so we can avoid loading
5158 it again. However, if it is a derived type, some of its components
5159 can be used in expressions in the module. To avoid the module loading
5160 failing, we need to associate the module's component pointer indexes
5161 with the existing symbol's component pointers. */
5162 if (gfc_fl_struct (sym
->attr
.flavor
))
5166 /* First seek to the symbol's component list. */
5167 mio_lparen (); /* symbol opening. */
5168 skip_list (); /* skip symbol attribute. */
5170 mio_lparen (); /* component list opening. */
5171 for (c
= sym
->components
; c
; c
= c
->next
)
5174 const char *comp_name
;
5177 mio_lparen (); /* component opening. */
5179 p
= get_integer (n
);
5180 if (p
->u
.pointer
== NULL
)
5181 associate_integer_pointer (p
, c
);
5182 mio_pool_string (&comp_name
);
5183 if (comp_name
!= c
->name
)
5185 gfc_fatal_error ("Mismatch in components of derived type "
5186 "%qs from %qs at %C: expecting %qs, "
5187 "but got %qs", sym
->name
, sym
->module
,
5188 c
->name
, comp_name
);
5190 skip_list (1); /* component end. */
5192 mio_rparen (); /* component list closing. */
5194 skip_list (1); /* symbol end. */
5199 /* Some symbols do not have a namespace (eg. formal arguments),
5200 so the automatic "unique symtree" mechanism must be suppressed
5201 by marking them as referenced. */
5202 q
= get_integer (info
->u
.rsym
.ns
);
5203 if (q
->u
.pointer
== NULL
)
5205 info
->u
.rsym
.referenced
= 1;
5212 /* Parse the symtree lists. This lets us mark which symbols need to
5213 be loaded. Renaming is also done at this point by replacing the
5218 while (peek_atom () != ATOM_RPAREN
)
5220 mio_internal_string (name
);
5221 mio_integer (&ambiguous
);
5222 mio_integer (&symbol
);
5224 info
= get_integer (symbol
);
5226 /* See how many use names there are. If none, go through the start
5227 of the loop at least once. */
5228 nuse
= number_use_names (name
, false);
5229 info
->u
.rsym
.renamed
= nuse
? 1 : 0;
5234 for (j
= 1; j
<= nuse
; j
++)
5236 /* Get the jth local name for this symbol. */
5237 p
= find_use_name_n (name
, &j
, false);
5239 if (p
== NULL
&& strcmp (name
, module_name
) == 0)
5242 /* Exception: Always import vtabs & vtypes. */
5243 if (p
== NULL
&& name
[0] == '_'
5244 && (gfc_str_startswith (name
, "__vtab_")
5245 || gfc_str_startswith (name
, "__vtype_")))
5248 /* Skip symtree nodes not in an ONLY clause, unless there
5249 is an existing symtree loaded from another USE statement. */
5252 st
= gfc_find_symtree (gfc_current_ns
->sym_root
, name
);
5254 && strcmp (st
->n
.sym
->name
, info
->u
.rsym
.true_name
) == 0
5255 && st
->n
.sym
->module
!= NULL
5256 && strcmp (st
->n
.sym
->module
, info
->u
.rsym
.module
) == 0)
5258 info
->u
.rsym
.symtree
= st
;
5259 info
->u
.rsym
.sym
= st
->n
.sym
;
5264 /* If a symbol of the same name and module exists already,
5265 this symbol, which is not in an ONLY clause, must not be
5266 added to the namespace(11.3.2). Note that find_symbol
5267 only returns the first occurrence that it finds. */
5268 if (!only_flag
&& !info
->u
.rsym
.renamed
5269 && strcmp (name
, module_name
) != 0
5270 && find_symbol (gfc_current_ns
->sym_root
, name
,
5274 st
= gfc_find_symtree (gfc_current_ns
->sym_root
, p
);
5277 && !(st
->n
.sym
&& st
->n
.sym
->attr
.used_in_submodule
))
5279 /* Check for ambiguous symbols. */
5280 if (check_for_ambiguous (st
, info
))
5283 info
->u
.rsym
.symtree
= st
;
5289 /* This symbol is host associated from a module in a
5290 submodule. Hide it with a unique symtree. */
5291 gfc_symtree
*s
= gfc_get_unique_symtree (gfc_current_ns
);
5292 s
->n
.sym
= st
->n
.sym
;
5297 /* Create a symtree node in the current namespace for this
5299 st
= check_unique_name (p
)
5300 ? gfc_get_unique_symtree (gfc_current_ns
)
5301 : gfc_new_symtree (&gfc_current_ns
->sym_root
, p
);
5302 st
->ambiguous
= ambiguous
;
5305 sym
= info
->u
.rsym
.sym
;
5307 /* Create a symbol node if it doesn't already exist. */
5310 info
->u
.rsym
.sym
= gfc_new_symbol (info
->u
.rsym
.true_name
,
5312 info
->u
.rsym
.sym
->name
= gfc_dt_lower_string (info
->u
.rsym
.true_name
);
5313 sym
= info
->u
.rsym
.sym
;
5314 sym
->module
= gfc_get_string ("%s", info
->u
.rsym
.module
);
5316 if (info
->u
.rsym
.binding_label
)
5318 tree id
= get_identifier (info
->u
.rsym
.binding_label
);
5319 sym
->binding_label
= IDENTIFIER_POINTER (id
);
5326 if (strcmp (name
, p
) != 0)
5327 sym
->attr
.use_rename
= 1;
5330 || (!gfc_str_startswith (name
, "__vtab_")
5331 && !gfc_str_startswith (name
, "__vtype_")))
5332 sym
->attr
.use_only
= only_flag
;
5334 /* Store the symtree pointing to this symbol. */
5335 info
->u
.rsym
.symtree
= st
;
5337 if (info
->u
.rsym
.state
== UNUSED
)
5338 info
->u
.rsym
.state
= NEEDED
;
5339 info
->u
.rsym
.referenced
= 1;
5346 /* Load intrinsic operator interfaces. */
5347 set_module_locus (&operator_interfaces
);
5350 for (i
= GFC_INTRINSIC_BEGIN
; i
!= GFC_INTRINSIC_END
; i
++)
5352 if (i
== INTRINSIC_USER
)
5357 u
= find_use_operator ((gfc_intrinsic_op
) i
);
5368 mio_interface (&gfc_current_ns
->op
[i
]);
5369 if (u
&& !gfc_current_ns
->op
[i
])
5375 /* Load generic and user operator interfaces. These must follow the
5376 loading of symtree because otherwise symbols can be marked as
5379 set_module_locus (&user_operators
);
5381 load_operator_interfaces ();
5382 load_generic_interfaces ();
5387 /* Load OpenMP user defined reductions. */
5388 set_module_locus (&omp_udrs
);
5391 /* At this point, we read those symbols that are needed but haven't
5392 been loaded yet. If one symbol requires another, the other gets
5393 marked as NEEDED if its previous state was UNUSED. */
5395 while (load_needed (pi_root
));
5397 /* Make sure all elements of the rename-list were found in the module. */
5399 for (u
= gfc_rename_list
; u
; u
= u
->next
)
5404 if (u
->op
== INTRINSIC_NONE
)
5406 gfc_error ("Symbol %qs referenced at %L not found in module %qs",
5407 u
->use_name
, &u
->where
, module_name
);
5411 if (u
->op
== INTRINSIC_USER
)
5413 gfc_error ("User operator %qs referenced at %L not found "
5414 "in module %qs", u
->use_name
, &u
->where
, module_name
);
5418 gfc_error ("Intrinsic operator %qs referenced at %L not found "
5419 "in module %qs", gfc_op2string (u
->op
), &u
->where
,
5423 /* Clean up symbol nodes that were never loaded, create references
5424 to hidden symbols. */
5426 read_cleanup (pi_root
);
5430 /* Given an access type that is specific to an entity and the default
5431 access, return nonzero if the entity is publicly accessible. If the
5432 element is declared as PUBLIC, then it is public; if declared
5433 PRIVATE, then private, and otherwise it is public unless the default
5434 access in this context has been declared PRIVATE. */
5436 static bool dump_smod
= false;
5439 check_access (gfc_access specific_access
, gfc_access default_access
)
5444 if (specific_access
== ACCESS_PUBLIC
)
5446 if (specific_access
== ACCESS_PRIVATE
)
5449 if (flag_module_private
)
5450 return default_access
== ACCESS_PUBLIC
;
5452 return default_access
!= ACCESS_PRIVATE
;
5457 gfc_check_symbol_access (gfc_symbol
*sym
)
5459 if (sym
->attr
.vtab
|| sym
->attr
.vtype
)
5462 return check_access (sym
->attr
.access
, sym
->ns
->default_access
);
5466 /* A structure to remember which commons we've already written. */
5468 struct written_common
5470 BBT_HEADER(written_common
);
5471 const char *name
, *label
;
5474 static struct written_common
*written_commons
= NULL
;
5476 /* Comparison function used for balancing the binary tree. */
5479 compare_written_commons (void *a1
, void *b1
)
5481 const char *aname
= ((struct written_common
*) a1
)->name
;
5482 const char *alabel
= ((struct written_common
*) a1
)->label
;
5483 const char *bname
= ((struct written_common
*) b1
)->name
;
5484 const char *blabel
= ((struct written_common
*) b1
)->label
;
5485 int c
= strcmp (aname
, bname
);
5487 return (c
!= 0 ? c
: strcmp (alabel
, blabel
));
5490 /* Free a list of written commons. */
5493 free_written_common (struct written_common
*w
)
5499 free_written_common (w
->left
);
5501 free_written_common (w
->right
);
5506 /* Write a common block to the module -- recursive helper function. */
5509 write_common_0 (gfc_symtree
*st
, bool this_module
)
5515 struct written_common
*w
;
5516 bool write_me
= true;
5521 write_common_0 (st
->left
, this_module
);
5523 /* We will write out the binding label, or "" if no label given. */
5524 name
= st
->n
.common
->name
;
5526 label
= (p
->is_bind_c
&& p
->binding_label
) ? p
->binding_label
: "";
5528 /* Check if we've already output this common. */
5529 w
= written_commons
;
5532 int c
= strcmp (name
, w
->name
);
5533 c
= (c
!= 0 ? c
: strcmp (label
, w
->label
));
5537 w
= (c
< 0) ? w
->left
: w
->right
;
5540 if (this_module
&& p
->use_assoc
)
5545 /* Write the common to the module. */
5547 mio_pool_string (&name
);
5549 mio_symbol_ref (&p
->head
);
5550 flags
= p
->saved
? 1 : 0;
5551 if (p
->threadprivate
)
5553 mio_integer (&flags
);
5555 /* Write out whether the common block is bind(c) or not. */
5556 mio_integer (&(p
->is_bind_c
));
5558 mio_pool_string (&label
);
5561 /* Record that we have written this common. */
5562 w
= XCNEW (struct written_common
);
5565 gfc_insert_bbt (&written_commons
, w
, compare_written_commons
);
5568 write_common_0 (st
->right
, this_module
);
5572 /* Write a common, by initializing the list of written commons, calling
5573 the recursive function write_common_0() and cleaning up afterwards. */
5576 write_common (gfc_symtree
*st
)
5578 written_commons
= NULL
;
5579 write_common_0 (st
, true);
5580 write_common_0 (st
, false);
5581 free_written_common (written_commons
);
5582 written_commons
= NULL
;
5586 /* Write the blank common block to the module. */
5589 write_blank_common (void)
5591 const char * name
= BLANK_COMMON_NAME
;
5593 /* TODO: Blank commons are not bind(c). The F2003 standard probably says
5594 this, but it hasn't been checked. Just making it so for now. */
5597 if (gfc_current_ns
->blank_common
.head
== NULL
)
5602 mio_pool_string (&name
);
5604 mio_symbol_ref (&gfc_current_ns
->blank_common
.head
);
5605 saved
= gfc_current_ns
->blank_common
.saved
;
5606 mio_integer (&saved
);
5608 /* Write out whether the common block is bind(c) or not. */
5609 mio_integer (&is_bind_c
);
5611 /* Write out an empty binding label. */
5612 write_atom (ATOM_STRING
, "");
5618 /* Write equivalences to the module. */
5627 for (eq
= gfc_current_ns
->equiv
; eq
; eq
= eq
->next
)
5631 for (e
= eq
; e
; e
= e
->eq
)
5633 if (e
->module
== NULL
)
5634 e
->module
= gfc_get_string ("%s.eq.%d", module_name
, num
);
5635 mio_allocated_string (e
->module
);
5636 mio_expr (&e
->expr
);
5645 /* Write a symbol to the module. */
5648 write_symbol (int n
, gfc_symbol
*sym
)
5652 if (sym
->attr
.flavor
== FL_UNKNOWN
|| sym
->attr
.flavor
== FL_LABEL
)
5653 gfc_internal_error ("write_symbol(): bad module symbol %qs", sym
->name
);
5657 if (gfc_fl_struct (sym
->attr
.flavor
))
5660 name
= gfc_dt_upper_string (sym
->name
);
5661 mio_pool_string (&name
);
5664 mio_pool_string (&sym
->name
);
5666 mio_pool_string (&sym
->module
);
5667 if ((sym
->attr
.is_bind_c
|| sym
->attr
.is_iso_c
) && sym
->binding_label
)
5669 label
= sym
->binding_label
;
5670 mio_pool_string (&label
);
5673 write_atom (ATOM_STRING
, "");
5675 mio_pointer_ref (&sym
->ns
);
5682 /* Recursive traversal function to write the initial set of symbols to
5683 the module. We check to see if the symbol should be written
5684 according to the access specification. */
5687 write_symbol0 (gfc_symtree
*st
)
5691 bool dont_write
= false;
5696 write_symbol0 (st
->left
);
5699 if (sym
->module
== NULL
)
5700 sym
->module
= module_name
;
5702 if (sym
->attr
.flavor
== FL_PROCEDURE
&& sym
->attr
.generic
5703 && !sym
->attr
.subroutine
&& !sym
->attr
.function
)
5706 if (!gfc_check_symbol_access (sym
))
5711 p
= get_pointer (sym
);
5712 if (p
->type
== P_UNKNOWN
)
5715 if (p
->u
.wsym
.state
!= WRITTEN
)
5717 write_symbol (p
->integer
, sym
);
5718 p
->u
.wsym
.state
= WRITTEN
;
5722 write_symbol0 (st
->right
);
5727 write_omp_udr (gfc_omp_udr
*udr
)
5731 case OMP_REDUCTION_USER
:
5732 /* Non-operators can't be used outside of the module. */
5733 if (udr
->name
[0] != '.')
5738 size_t len
= strlen (udr
->name
+ 1);
5739 char *name
= XALLOCAVEC (char, len
);
5740 memcpy (name
, udr
->name
, len
- 1);
5741 name
[len
- 1] = '\0';
5742 st
= gfc_find_symtree (gfc_current_ns
->uop_root
, name
);
5743 /* If corresponding user operator is private, don't write
5747 gfc_user_op
*uop
= st
->n
.uop
;
5748 if (!check_access (uop
->access
, uop
->ns
->default_access
))
5753 case OMP_REDUCTION_PLUS
:
5754 case OMP_REDUCTION_MINUS
:
5755 case OMP_REDUCTION_TIMES
:
5756 case OMP_REDUCTION_AND
:
5757 case OMP_REDUCTION_OR
:
5758 case OMP_REDUCTION_EQV
:
5759 case OMP_REDUCTION_NEQV
:
5760 /* If corresponding operator is private, don't write the UDR. */
5761 if (!check_access (gfc_current_ns
->operator_access
[udr
->rop
],
5762 gfc_current_ns
->default_access
))
5768 if (udr
->ts
.type
== BT_DERIVED
|| udr
->ts
.type
== BT_CLASS
)
5770 /* If derived type is private, don't write the UDR. */
5771 if (!gfc_check_symbol_access (udr
->ts
.u
.derived
))
5776 mio_pool_string (&udr
->name
);
5777 mio_typespec (&udr
->ts
);
5778 mio_omp_udr_expr (udr
, &udr
->omp_out
, &udr
->omp_in
, udr
->combiner_ns
, false);
5779 if (udr
->initializer_ns
)
5780 mio_omp_udr_expr (udr
, &udr
->omp_priv
, &udr
->omp_orig
,
5781 udr
->initializer_ns
, true);
5787 write_omp_udrs (gfc_symtree
*st
)
5792 write_omp_udrs (st
->left
);
5794 for (udr
= st
->n
.omp_udr
; udr
; udr
= udr
->next
)
5795 write_omp_udr (udr
);
5796 write_omp_udrs (st
->right
);
5800 /* Type for the temporary tree used when writing secondary symbols. */
5802 struct sorted_pointer_info
5804 BBT_HEADER (sorted_pointer_info
);
5809 #define gfc_get_sorted_pointer_info() XCNEW (sorted_pointer_info)
5811 /* Recursively traverse the temporary tree, free its contents. */
5814 free_sorted_pointer_info_tree (sorted_pointer_info
*p
)
5819 free_sorted_pointer_info_tree (p
->left
);
5820 free_sorted_pointer_info_tree (p
->right
);
5825 /* Comparison function for the temporary tree. */
5828 compare_sorted_pointer_info (void *_spi1
, void *_spi2
)
5830 sorted_pointer_info
*spi1
, *spi2
;
5831 spi1
= (sorted_pointer_info
*)_spi1
;
5832 spi2
= (sorted_pointer_info
*)_spi2
;
5834 if (spi1
->p
->integer
< spi2
->p
->integer
)
5836 if (spi1
->p
->integer
> spi2
->p
->integer
)
5842 /* Finds the symbols that need to be written and collects them in the
5843 sorted_pi tree so that they can be traversed in an order
5844 independent of memory addresses. */
5847 find_symbols_to_write(sorted_pointer_info
**tree
, pointer_info
*p
)
5852 if (p
->type
== P_SYMBOL
&& p
->u
.wsym
.state
== NEEDS_WRITE
)
5854 sorted_pointer_info
*sp
= gfc_get_sorted_pointer_info();
5857 gfc_insert_bbt (tree
, sp
, compare_sorted_pointer_info
);
5860 find_symbols_to_write (tree
, p
->left
);
5861 find_symbols_to_write (tree
, p
->right
);
5865 /* Recursive function that traverses the tree of symbols that need to be
5866 written and writes them in order. */
5869 write_symbol1_recursion (sorted_pointer_info
*sp
)
5874 write_symbol1_recursion (sp
->left
);
5876 pointer_info
*p1
= sp
->p
;
5877 gcc_assert (p1
->type
== P_SYMBOL
&& p1
->u
.wsym
.state
== NEEDS_WRITE
);
5879 p1
->u
.wsym
.state
= WRITTEN
;
5880 write_symbol (p1
->integer
, p1
->u
.wsym
.sym
);
5881 p1
->u
.wsym
.sym
->attr
.public_used
= 1;
5883 write_symbol1_recursion (sp
->right
);
5887 /* Write the secondary set of symbols to the module file. These are
5888 symbols that were not public yet are needed by the public symbols
5889 or another dependent symbol. The act of writing a symbol can add
5890 symbols to the pointer_info tree, so we return nonzero if a symbol
5891 was written and pass that information upwards. The caller will
5892 then call this function again until nothing was written. It uses
5893 the utility functions and a temporary tree to ensure a reproducible
5894 ordering of the symbol output and thus the module file. */
5897 write_symbol1 (pointer_info
*p
)
5902 /* Put symbols that need to be written into a tree sorted on the
5905 sorted_pointer_info
*spi_root
= NULL
;
5906 find_symbols_to_write (&spi_root
, p
);
5908 /* No symbols to write, return. */
5912 /* Otherwise, write and free the tree again. */
5913 write_symbol1_recursion (spi_root
);
5914 free_sorted_pointer_info_tree (spi_root
);
5920 /* Write operator interfaces associated with a symbol. */
5923 write_operator (gfc_user_op
*uop
)
5925 static char nullstring
[] = "";
5926 const char *p
= nullstring
;
5928 if (uop
->op
== NULL
|| !check_access (uop
->access
, uop
->ns
->default_access
))
5931 mio_symbol_interface (&uop
->name
, &p
, &uop
->op
);
5935 /* Write generic interfaces from the namespace sym_root. */
5938 write_generic (gfc_symtree
*st
)
5945 write_generic (st
->left
);
5948 if (sym
&& !check_unique_name (st
->name
)
5949 && sym
->generic
&& gfc_check_symbol_access (sym
))
5952 sym
->module
= module_name
;
5954 mio_symbol_interface (&st
->name
, &sym
->module
, &sym
->generic
);
5957 write_generic (st
->right
);
5962 write_symtree (gfc_symtree
*st
)
5969 /* A symbol in an interface body must not be visible in the
5971 if (sym
->ns
!= gfc_current_ns
5972 && sym
->ns
->proc_name
5973 && sym
->ns
->proc_name
->attr
.if_source
== IFSRC_IFBODY
)
5976 if (!gfc_check_symbol_access (sym
)
5977 || (sym
->attr
.flavor
== FL_PROCEDURE
&& sym
->attr
.generic
5978 && !sym
->attr
.subroutine
&& !sym
->attr
.function
))
5981 if (check_unique_name (st
->name
))
5984 p
= find_pointer (sym
);
5986 gfc_internal_error ("write_symtree(): Symbol not written");
5988 mio_pool_string (&st
->name
);
5989 mio_integer (&st
->ambiguous
);
5990 mio_hwi (&p
->integer
);
5999 /* Write the operator interfaces. */
6002 for (i
= GFC_INTRINSIC_BEGIN
; i
!= GFC_INTRINSIC_END
; i
++)
6004 if (i
== INTRINSIC_USER
)
6007 mio_interface (check_access (gfc_current_ns
->operator_access
[i
],
6008 gfc_current_ns
->default_access
)
6009 ? &gfc_current_ns
->op
[i
] : NULL
);
6017 gfc_traverse_user_op (gfc_current_ns
, write_operator
);
6023 write_generic (gfc_current_ns
->sym_root
);
6029 write_blank_common ();
6030 write_common (gfc_current_ns
->common_root
);
6042 write_omp_udrs (gfc_current_ns
->omp_udr_root
);
6047 /* Write symbol information. First we traverse all symbols in the
6048 primary namespace, writing those that need to be written.
6049 Sometimes writing one symbol will cause another to need to be
6050 written. A list of these symbols ends up on the write stack, and
6051 we end by popping the bottom of the stack and writing the symbol
6052 until the stack is empty. */
6056 write_symbol0 (gfc_current_ns
->sym_root
);
6057 while (write_symbol1 (pi_root
))
6066 gfc_traverse_symtree (gfc_current_ns
->sym_root
, write_symtree
);
6071 /* Read a CRC32 sum from the gzip trailer of a module file. Returns
6072 true on success, false on failure. */
6075 read_crc32_from_module_file (const char* filename
, uLong
* crc
)
6081 /* Open the file in binary mode. */
6082 if ((file
= fopen (filename
, "rb")) == NULL
)
6085 /* The gzip crc32 value is found in the [END-8, END-4] bytes of the
6086 file. See RFC 1952. */
6087 if (fseek (file
, -8, SEEK_END
) != 0)
6093 /* Read the CRC32. */
6094 if (fread (buf
, 1, 4, file
) != 4)
6100 /* Close the file. */
6103 val
= (buf
[0] & 0xFF) + ((buf
[1] & 0xFF) << 8) + ((buf
[2] & 0xFF) << 16)
6104 + ((buf
[3] & 0xFF) << 24);
6107 /* For debugging, the CRC value printed in hexadecimal should match
6108 the CRC printed by "zcat -l -v filename".
6109 printf("CRC of file %s is %x\n", filename, val); */
6115 /* Given module, dump it to disk. If there was an error while
6116 processing the module, dump_flag will be set to zero and we delete
6117 the module file, even if it was already there. */
6120 dump_module (const char *name
, int dump_flag
)
6123 char *filename
, *filename_tmp
;
6126 module_name
= gfc_get_string ("%s", name
);
6130 name
= submodule_name
;
6131 n
= strlen (name
) + strlen (SUBMODULE_EXTENSION
) + 1;
6134 n
= strlen (name
) + strlen (MODULE_EXTENSION
) + 1;
6136 if (gfc_option
.module_dir
!= NULL
)
6138 n
+= strlen (gfc_option
.module_dir
);
6139 filename
= (char *) alloca (n
);
6140 strcpy (filename
, gfc_option
.module_dir
);
6141 strcat (filename
, name
);
6145 filename
= (char *) alloca (n
);
6146 strcpy (filename
, name
);
6150 strcat (filename
, SUBMODULE_EXTENSION
);
6152 strcat (filename
, MODULE_EXTENSION
);
6154 /* Name of the temporary file used to write the module. */
6155 filename_tmp
= (char *) alloca (n
+ 1);
6156 strcpy (filename_tmp
, filename
);
6157 strcat (filename_tmp
, "0");
6159 /* There was an error while processing the module. We delete the
6160 module file, even if it was already there. */
6167 if (gfc_cpp_makedep ())
6168 gfc_cpp_add_target (filename
);
6170 /* Write the module to the temporary file. */
6171 module_fp
= gzopen (filename_tmp
, "w");
6172 if (module_fp
== NULL
)
6173 gfc_fatal_error ("Can't open module file %qs for writing at %C: %s",
6174 filename_tmp
, xstrerror (errno
));
6176 /* Use lbasename to ensure module files are reproducible regardless
6177 of the build path (see the reproducible builds project). */
6178 gzprintf (module_fp
, "GFORTRAN module version '%s' created from %s\n",
6179 MOD_VERSION
, lbasename (gfc_source_file
));
6181 /* Write the module itself. */
6188 free_pi_tree (pi_root
);
6193 if (gzclose (module_fp
))
6194 gfc_fatal_error ("Error writing module file %qs for writing: %s",
6195 filename_tmp
, xstrerror (errno
));
6197 /* Read the CRC32 from the gzip trailers of the module files and
6199 if (!read_crc32_from_module_file (filename_tmp
, &crc
)
6200 || !read_crc32_from_module_file (filename
, &crc_old
)
6203 /* Module file have changed, replace the old one. */
6204 if (remove (filename
) && errno
!= ENOENT
)
6205 gfc_fatal_error ("Can't delete module file %qs: %s", filename
,
6207 if (rename (filename_tmp
, filename
))
6208 gfc_fatal_error ("Can't rename module file %qs to %qs: %s",
6209 filename_tmp
, filename
, xstrerror (errno
));
6213 if (remove (filename_tmp
))
6214 gfc_fatal_error ("Can't delete temporary module file %qs: %s",
6215 filename_tmp
, xstrerror (errno
));
6220 /* Suppress the output of a .smod file by module, if no module
6221 procedures have been seen. */
6222 static bool no_module_procedures
;
6225 check_for_module_procedures (gfc_symbol
*sym
)
6227 if (sym
&& sym
->attr
.module_procedure
)
6228 no_module_procedures
= false;
6233 gfc_dump_module (const char *name
, int dump_flag
)
6235 if (gfc_state_stack
->state
== COMP_SUBMODULE
)
6240 no_module_procedures
= true;
6241 gfc_traverse_ns (gfc_current_ns
, check_for_module_procedures
);
6243 dump_module (name
, dump_flag
);
6245 if (no_module_procedures
|| dump_smod
)
6248 /* Write a submodule file from a module. The 'dump_smod' flag switches
6249 off the check for PRIVATE entities. */
6251 submodule_name
= module_name
;
6252 dump_module (name
, dump_flag
);
6257 create_intrinsic_function (const char *name
, int id
,
6258 const char *modname
, intmod_id module
,
6259 bool subroutine
, gfc_symbol
*result_type
)
6261 gfc_intrinsic_sym
*isym
;
6262 gfc_symtree
*tmp_symtree
;
6265 tmp_symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, name
);
6268 if (tmp_symtree
->n
.sym
&& tmp_symtree
->n
.sym
->module
6269 && strcmp (modname
, tmp_symtree
->n
.sym
->module
) == 0)
6271 gfc_error ("Symbol %qs at %C already declared", name
);
6275 gfc_get_sym_tree (name
, gfc_current_ns
, &tmp_symtree
, false);
6276 sym
= tmp_symtree
->n
.sym
;
6280 gfc_isym_id isym_id
= gfc_isym_id_by_intmod (module
, id
);
6281 isym
= gfc_intrinsic_subroutine_by_id (isym_id
);
6282 sym
->attr
.subroutine
= 1;
6286 gfc_isym_id isym_id
= gfc_isym_id_by_intmod (module
, id
);
6287 isym
= gfc_intrinsic_function_by_id (isym_id
);
6289 sym
->attr
.function
= 1;
6292 sym
->ts
.type
= BT_DERIVED
;
6293 sym
->ts
.u
.derived
= result_type
;
6294 sym
->ts
.is_c_interop
= 1;
6295 isym
->ts
.f90_type
= BT_VOID
;
6296 isym
->ts
.type
= BT_DERIVED
;
6297 isym
->ts
.f90_type
= BT_VOID
;
6298 isym
->ts
.u
.derived
= result_type
;
6299 isym
->ts
.is_c_interop
= 1;
6304 sym
->attr
.flavor
= FL_PROCEDURE
;
6305 sym
->attr
.intrinsic
= 1;
6307 sym
->module
= gfc_get_string ("%s", modname
);
6308 sym
->attr
.use_assoc
= 1;
6309 sym
->from_intmod
= module
;
6310 sym
->intmod_sym_id
= id
;
6314 /* Import the intrinsic ISO_C_BINDING module, generating symbols in
6315 the current namespace for all named constants, pointer types, and
6316 procedures in the module unless the only clause was used or a rename
6317 list was provided. */
6320 import_iso_c_binding_module (void)
6322 gfc_symbol
*mod_sym
= NULL
, *return_type
;
6323 gfc_symtree
*mod_symtree
= NULL
, *tmp_symtree
;
6324 gfc_symtree
*c_ptr
= NULL
, *c_funptr
= NULL
;
6325 const char *iso_c_module_name
= "__iso_c_binding";
6328 bool want_c_ptr
= false, want_c_funptr
= false;
6330 /* Look only in the current namespace. */
6331 mod_symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, iso_c_module_name
);
6333 if (mod_symtree
== NULL
)
6335 /* symtree doesn't already exist in current namespace. */
6336 gfc_get_sym_tree (iso_c_module_name
, gfc_current_ns
, &mod_symtree
,
6339 if (mod_symtree
!= NULL
)
6340 mod_sym
= mod_symtree
->n
.sym
;
6342 gfc_internal_error ("import_iso_c_binding_module(): Unable to "
6343 "create symbol for %s", iso_c_module_name
);
6345 mod_sym
->attr
.flavor
= FL_MODULE
;
6346 mod_sym
->attr
.intrinsic
= 1;
6347 mod_sym
->module
= gfc_get_string ("%s", iso_c_module_name
);
6348 mod_sym
->from_intmod
= INTMOD_ISO_C_BINDING
;
6351 /* Check whether C_PTR or C_FUNPTR are in the include list, if so, load it;
6352 check also whether C_NULL_(FUN)PTR or C_(FUN)LOC are requested, which
6354 for (u
= gfc_rename_list
; u
; u
= u
->next
)
6356 if (strcmp (c_interop_kinds_table
[ISOCBINDING_NULL_PTR
].name
,
6359 else if (strcmp (c_interop_kinds_table
[ISOCBINDING_LOC
].name
,
6362 else if (strcmp (c_interop_kinds_table
[ISOCBINDING_NULL_FUNPTR
].name
,
6364 want_c_funptr
= true;
6365 else if (strcmp (c_interop_kinds_table
[ISOCBINDING_FUNLOC
].name
,
6367 want_c_funptr
= true;
6368 else if (strcmp (c_interop_kinds_table
[ISOCBINDING_PTR
].name
,
6371 c_ptr
= generate_isocbinding_symbol (iso_c_module_name
,
6372 (iso_c_binding_symbol
)
6374 u
->local_name
[0] ? u
->local_name
6378 else if (strcmp (c_interop_kinds_table
[ISOCBINDING_FUNPTR
].name
,
6382 = generate_isocbinding_symbol (iso_c_module_name
,
6383 (iso_c_binding_symbol
)
6385 u
->local_name
[0] ? u
->local_name
6391 if ((want_c_ptr
|| !only_flag
) && !c_ptr
)
6392 c_ptr
= generate_isocbinding_symbol (iso_c_module_name
,
6393 (iso_c_binding_symbol
)
6395 NULL
, NULL
, only_flag
);
6396 if ((want_c_funptr
|| !only_flag
) && !c_funptr
)
6397 c_funptr
= generate_isocbinding_symbol (iso_c_module_name
,
6398 (iso_c_binding_symbol
)
6400 NULL
, NULL
, only_flag
);
6402 /* Generate the symbols for the named constants representing
6403 the kinds for intrinsic data types. */
6404 for (i
= 0; i
< ISOCBINDING_NUMBER
; i
++)
6407 for (u
= gfc_rename_list
; u
; u
= u
->next
)
6408 if (strcmp (c_interop_kinds_table
[i
].name
, u
->use_name
) == 0)
6417 #define NAMED_FUNCTION(a,b,c,d) \
6419 not_in_std = (gfc_option.allow_std & d) == 0; \
6422 #define NAMED_SUBROUTINE(a,b,c,d) \
6424 not_in_std = (gfc_option.allow_std & d) == 0; \
6427 #define NAMED_INTCST(a,b,c,d) \
6429 not_in_std = (gfc_option.allow_std & d) == 0; \
6432 #define NAMED_REALCST(a,b,c,d) \
6434 not_in_std = (gfc_option.allow_std & d) == 0; \
6437 #define NAMED_CMPXCST(a,b,c,d) \
6439 not_in_std = (gfc_option.allow_std & d) == 0; \
6442 #include "iso-c-binding.def"
6450 gfc_error ("The symbol %qs, referenced at %L, is not "
6451 "in the selected standard", name
, &u
->where
);
6457 #define NAMED_FUNCTION(a,b,c,d) \
6459 if (a == ISOCBINDING_LOC) \
6460 return_type = c_ptr->n.sym; \
6461 else if (a == ISOCBINDING_FUNLOC) \
6462 return_type = c_funptr->n.sym; \
6464 return_type = NULL; \
6465 create_intrinsic_function (u->local_name[0] \
6466 ? u->local_name : u->use_name, \
6467 a, iso_c_module_name, \
6468 INTMOD_ISO_C_BINDING, false, \
6471 #define NAMED_SUBROUTINE(a,b,c,d) \
6473 create_intrinsic_function (u->local_name[0] ? u->local_name \
6475 a, iso_c_module_name, \
6476 INTMOD_ISO_C_BINDING, true, NULL); \
6478 #include "iso-c-binding.def"
6480 case ISOCBINDING_PTR
:
6481 case ISOCBINDING_FUNPTR
:
6482 /* Already handled above. */
6485 if (i
== ISOCBINDING_NULL_PTR
)
6486 tmp_symtree
= c_ptr
;
6487 else if (i
== ISOCBINDING_NULL_FUNPTR
)
6488 tmp_symtree
= c_funptr
;
6491 generate_isocbinding_symbol (iso_c_module_name
,
6492 (iso_c_binding_symbol
) i
,
6494 ? u
->local_name
: u
->use_name
,
6495 tmp_symtree
, false);
6499 if (!found
&& !only_flag
)
6501 /* Skip, if the symbol is not in the enabled standard. */
6504 #define NAMED_FUNCTION(a,b,c,d) \
6506 if ((gfc_option.allow_std & d) == 0) \
6509 #define NAMED_SUBROUTINE(a,b,c,d) \
6511 if ((gfc_option.allow_std & d) == 0) \
6514 #define NAMED_INTCST(a,b,c,d) \
6516 if ((gfc_option.allow_std & d) == 0) \
6519 #define NAMED_REALCST(a,b,c,d) \
6521 if ((gfc_option.allow_std & d) == 0) \
6524 #define NAMED_CMPXCST(a,b,c,d) \
6526 if ((gfc_option.allow_std & d) == 0) \
6529 #include "iso-c-binding.def"
6531 ; /* Not GFC_STD_* versioned. */
6536 #define NAMED_FUNCTION(a,b,c,d) \
6538 if (a == ISOCBINDING_LOC) \
6539 return_type = c_ptr->n.sym; \
6540 else if (a == ISOCBINDING_FUNLOC) \
6541 return_type = c_funptr->n.sym; \
6543 return_type = NULL; \
6544 create_intrinsic_function (b, a, iso_c_module_name, \
6545 INTMOD_ISO_C_BINDING, false, \
6548 #define NAMED_SUBROUTINE(a,b,c,d) \
6550 create_intrinsic_function (b, a, iso_c_module_name, \
6551 INTMOD_ISO_C_BINDING, true, NULL); \
6553 #include "iso-c-binding.def"
6555 case ISOCBINDING_PTR
:
6556 case ISOCBINDING_FUNPTR
:
6557 /* Already handled above. */
6560 if (i
== ISOCBINDING_NULL_PTR
)
6561 tmp_symtree
= c_ptr
;
6562 else if (i
== ISOCBINDING_NULL_FUNPTR
)
6563 tmp_symtree
= c_funptr
;
6566 generate_isocbinding_symbol (iso_c_module_name
,
6567 (iso_c_binding_symbol
) i
, NULL
,
6568 tmp_symtree
, false);
6573 for (u
= gfc_rename_list
; u
; u
= u
->next
)
6578 gfc_error ("Symbol %qs referenced at %L not found in intrinsic "
6579 "module ISO_C_BINDING", u
->use_name
, &u
->where
);
6584 /* Add an integer named constant from a given module. */
6587 create_int_parameter (const char *name
, int value
, const char *modname
,
6588 intmod_id module
, int id
)
6590 gfc_symtree
*tmp_symtree
;
6593 tmp_symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, name
);
6594 if (tmp_symtree
!= NULL
)
6596 if (strcmp (modname
, tmp_symtree
->n
.sym
->module
) == 0)
6599 gfc_error ("Symbol %qs already declared", name
);
6602 gfc_get_sym_tree (name
, gfc_current_ns
, &tmp_symtree
, false);
6603 sym
= tmp_symtree
->n
.sym
;
6605 sym
->module
= gfc_get_string ("%s", modname
);
6606 sym
->attr
.flavor
= FL_PARAMETER
;
6607 sym
->ts
.type
= BT_INTEGER
;
6608 sym
->ts
.kind
= gfc_default_integer_kind
;
6609 sym
->value
= gfc_get_int_expr (gfc_default_integer_kind
, NULL
, value
);
6610 sym
->attr
.use_assoc
= 1;
6611 sym
->from_intmod
= module
;
6612 sym
->intmod_sym_id
= id
;
6616 /* Value is already contained by the array constructor, but not
6620 create_int_parameter_array (const char *name
, int size
, gfc_expr
*value
,
6621 const char *modname
, intmod_id module
, int id
)
6623 gfc_symtree
*tmp_symtree
;
6626 tmp_symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, name
);
6627 if (tmp_symtree
!= NULL
)
6629 if (strcmp (modname
, tmp_symtree
->n
.sym
->module
) == 0)
6632 gfc_error ("Symbol %qs already declared", name
);
6635 gfc_get_sym_tree (name
, gfc_current_ns
, &tmp_symtree
, false);
6636 sym
= tmp_symtree
->n
.sym
;
6638 sym
->module
= gfc_get_string ("%s", modname
);
6639 sym
->attr
.flavor
= FL_PARAMETER
;
6640 sym
->ts
.type
= BT_INTEGER
;
6641 sym
->ts
.kind
= gfc_default_integer_kind
;
6642 sym
->attr
.use_assoc
= 1;
6643 sym
->from_intmod
= module
;
6644 sym
->intmod_sym_id
= id
;
6645 sym
->attr
.dimension
= 1;
6646 sym
->as
= gfc_get_array_spec ();
6648 sym
->as
->type
= AS_EXPLICIT
;
6649 sym
->as
->lower
[0] = gfc_get_int_expr (gfc_default_integer_kind
, NULL
, 1);
6650 sym
->as
->upper
[0] = gfc_get_int_expr (gfc_default_integer_kind
, NULL
, size
);
6653 sym
->value
->shape
= gfc_get_shape (1);
6654 mpz_init_set_ui (sym
->value
->shape
[0], size
);
6658 /* Add an derived type for a given module. */
6661 create_derived_type (const char *name
, const char *modname
,
6662 intmod_id module
, int id
)
6664 gfc_symtree
*tmp_symtree
;
6665 gfc_symbol
*sym
, *dt_sym
;
6666 gfc_interface
*intr
, *head
;
6668 tmp_symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, name
);
6669 if (tmp_symtree
!= NULL
)
6671 if (strcmp (modname
, tmp_symtree
->n
.sym
->module
) == 0)
6674 gfc_error ("Symbol %qs already declared", name
);
6677 gfc_get_sym_tree (name
, gfc_current_ns
, &tmp_symtree
, false);
6678 sym
= tmp_symtree
->n
.sym
;
6679 sym
->module
= gfc_get_string ("%s", modname
);
6680 sym
->from_intmod
= module
;
6681 sym
->intmod_sym_id
= id
;
6682 sym
->attr
.flavor
= FL_PROCEDURE
;
6683 sym
->attr
.function
= 1;
6684 sym
->attr
.generic
= 1;
6686 gfc_get_sym_tree (gfc_dt_upper_string (sym
->name
),
6687 gfc_current_ns
, &tmp_symtree
, false);
6688 dt_sym
= tmp_symtree
->n
.sym
;
6689 dt_sym
->name
= gfc_get_string ("%s", sym
->name
);
6690 dt_sym
->attr
.flavor
= FL_DERIVED
;
6691 dt_sym
->attr
.private_comp
= 1;
6692 dt_sym
->attr
.zero_comp
= 1;
6693 dt_sym
->attr
.use_assoc
= 1;
6694 dt_sym
->module
= gfc_get_string ("%s", modname
);
6695 dt_sym
->from_intmod
= module
;
6696 dt_sym
->intmod_sym_id
= id
;
6698 head
= sym
->generic
;
6699 intr
= gfc_get_interface ();
6701 intr
->where
= gfc_current_locus
;
6703 sym
->generic
= intr
;
6704 sym
->attr
.if_source
= IFSRC_DECL
;
6708 /* Read the contents of the module file into a temporary buffer. */
6711 read_module_to_tmpbuf ()
6713 /* We don't know the uncompressed size, so enlarge the buffer as
6719 module_content
= XNEWVEC (char, cursz
);
6723 int nread
= gzread (module_fp
, module_content
+ len
, rsize
);
6728 module_content
= XRESIZEVEC (char, module_content
, cursz
);
6729 rsize
= cursz
- len
;
6732 module_content
= XRESIZEVEC (char, module_content
, len
+ 1);
6733 module_content
[len
] = '\0';
6739 /* USE the ISO_FORTRAN_ENV intrinsic module. */
6742 use_iso_fortran_env_module (void)
6744 static char mod
[] = "iso_fortran_env";
6746 gfc_symbol
*mod_sym
;
6747 gfc_symtree
*mod_symtree
;
6751 intmod_sym symbol
[] = {
6752 #define NAMED_INTCST(a,b,c,d) { a, b, 0, d },
6753 #define NAMED_KINDARRAY(a,b,c,d) { a, b, 0, d },
6754 #define NAMED_DERIVED_TYPE(a,b,c,d) { a, b, 0, d },
6755 #define NAMED_FUNCTION(a,b,c,d) { a, b, c, d },
6756 #define NAMED_SUBROUTINE(a,b,c,d) { a, b, c, d },
6757 #include "iso-fortran-env.def"
6758 { ISOFORTRANENV_INVALID
, NULL
, -1234, 0 } };
6761 #define NAMED_INTCST(a,b,c,d) symbol[i++].value = c;
6762 #include "iso-fortran-env.def"
6764 /* Generate the symbol for the module itself. */
6765 mod_symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, mod
);
6766 if (mod_symtree
== NULL
)
6768 gfc_get_sym_tree (mod
, gfc_current_ns
, &mod_symtree
, false);
6769 gcc_assert (mod_symtree
);
6770 mod_sym
= mod_symtree
->n
.sym
;
6772 mod_sym
->attr
.flavor
= FL_MODULE
;
6773 mod_sym
->attr
.intrinsic
= 1;
6774 mod_sym
->module
= gfc_get_string ("%s", mod
);
6775 mod_sym
->from_intmod
= INTMOD_ISO_FORTRAN_ENV
;
6778 if (!mod_symtree
->n
.sym
->attr
.intrinsic
)
6779 gfc_error ("Use of intrinsic module %qs at %C conflicts with "
6780 "non-intrinsic module name used previously", mod
);
6782 /* Generate the symbols for the module integer named constants. */
6784 for (i
= 0; symbol
[i
].name
; i
++)
6787 for (u
= gfc_rename_list
; u
; u
= u
->next
)
6789 if (strcmp (symbol
[i
].name
, u
->use_name
) == 0)
6794 if (!gfc_notify_std (symbol
[i
].standard
, "The symbol %qs, "
6795 "referenced at %L, is not in the selected "
6796 "standard", symbol
[i
].name
, &u
->where
))
6799 if ((flag_default_integer
|| flag_default_real_8
)
6800 && symbol
[i
].id
== ISOFORTRANENV_NUMERIC_STORAGE_SIZE
)
6801 gfc_warning_now (0, "Use of the NUMERIC_STORAGE_SIZE named "
6802 "constant from intrinsic module "
6803 "ISO_FORTRAN_ENV at %L is incompatible with "
6804 "option %qs", &u
->where
,
6805 flag_default_integer
6806 ? "-fdefault-integer-8"
6807 : "-fdefault-real-8");
6808 switch (symbol
[i
].id
)
6810 #define NAMED_INTCST(a,b,c,d) \
6812 #include "iso-fortran-env.def"
6813 create_int_parameter (u
->local_name
[0] ? u
->local_name
6815 symbol
[i
].value
, mod
,
6816 INTMOD_ISO_FORTRAN_ENV
, symbol
[i
].id
);
6819 #define NAMED_KINDARRAY(a,b,KINDS,d) \
6821 expr = gfc_get_array_expr (BT_INTEGER, \
6822 gfc_default_integer_kind,\
6824 for (j = 0; KINDS[j].kind != 0; j++) \
6825 gfc_constructor_append_expr (&expr->value.constructor, \
6826 gfc_get_int_expr (gfc_default_integer_kind, NULL, \
6827 KINDS[j].kind), NULL); \
6828 create_int_parameter_array (u->local_name[0] ? u->local_name \
6831 INTMOD_ISO_FORTRAN_ENV, \
6834 #include "iso-fortran-env.def"
6836 #define NAMED_DERIVED_TYPE(a,b,TYPE,STD) \
6838 #include "iso-fortran-env.def"
6839 create_derived_type (u
->local_name
[0] ? u
->local_name
6841 mod
, INTMOD_ISO_FORTRAN_ENV
,
6845 #define NAMED_FUNCTION(a,b,c,d) \
6847 #include "iso-fortran-env.def"
6848 create_intrinsic_function (u
->local_name
[0] ? u
->local_name
6851 INTMOD_ISO_FORTRAN_ENV
, false,
6861 if (!found
&& !only_flag
)
6863 if ((gfc_option
.allow_std
& symbol
[i
].standard
) == 0)
6866 if ((flag_default_integer
|| flag_default_real_8
)
6867 && symbol
[i
].id
== ISOFORTRANENV_NUMERIC_STORAGE_SIZE
)
6869 "Use of the NUMERIC_STORAGE_SIZE named constant "
6870 "from intrinsic module ISO_FORTRAN_ENV at %C is "
6871 "incompatible with option %s",
6872 flag_default_integer
6873 ? "-fdefault-integer-8" : "-fdefault-real-8");
6875 switch (symbol
[i
].id
)
6877 #define NAMED_INTCST(a,b,c,d) \
6879 #include "iso-fortran-env.def"
6880 create_int_parameter (symbol
[i
].name
, symbol
[i
].value
, mod
,
6881 INTMOD_ISO_FORTRAN_ENV
, symbol
[i
].id
);
6884 #define NAMED_KINDARRAY(a,b,KINDS,d) \
6886 expr = gfc_get_array_expr (BT_INTEGER, gfc_default_integer_kind, \
6888 for (j = 0; KINDS[j].kind != 0; j++) \
6889 gfc_constructor_append_expr (&expr->value.constructor, \
6890 gfc_get_int_expr (gfc_default_integer_kind, NULL, \
6891 KINDS[j].kind), NULL); \
6892 create_int_parameter_array (symbol[i].name, j, expr, mod, \
6893 INTMOD_ISO_FORTRAN_ENV, symbol[i].id);\
6895 #include "iso-fortran-env.def"
6897 #define NAMED_DERIVED_TYPE(a,b,TYPE,STD) \
6899 #include "iso-fortran-env.def"
6900 create_derived_type (symbol
[i
].name
, mod
, INTMOD_ISO_FORTRAN_ENV
,
6904 #define NAMED_FUNCTION(a,b,c,d) \
6906 #include "iso-fortran-env.def"
6907 create_intrinsic_function (symbol
[i
].name
, symbol
[i
].id
, mod
,
6908 INTMOD_ISO_FORTRAN_ENV
, false,
6918 for (u
= gfc_rename_list
; u
; u
= u
->next
)
6923 gfc_error ("Symbol %qs referenced at %L not found in intrinsic "
6924 "module ISO_FORTRAN_ENV", u
->use_name
, &u
->where
);
6929 /* Process a USE directive. */
6932 gfc_use_module (gfc_use_list
*module
)
6937 gfc_symtree
*mod_symtree
;
6938 gfc_use_list
*use_stmt
;
6939 locus old_locus
= gfc_current_locus
;
6941 gfc_current_locus
= module
->where
;
6942 module_name
= module
->module_name
;
6943 gfc_rename_list
= module
->rename
;
6944 only_flag
= module
->only_flag
;
6945 current_intmod
= INTMOD_NONE
;
6948 gfc_warning_now (OPT_Wuse_without_only
,
6949 "USE statement at %C has no ONLY qualifier");
6951 if (gfc_state_stack
->state
== COMP_MODULE
6952 || module
->submodule_name
== NULL
)
6954 filename
= XALLOCAVEC (char, strlen (module_name
)
6955 + strlen (MODULE_EXTENSION
) + 1);
6956 strcpy (filename
, module_name
);
6957 strcat (filename
, MODULE_EXTENSION
);
6961 filename
= XALLOCAVEC (char, strlen (module
->submodule_name
)
6962 + strlen (SUBMODULE_EXTENSION
) + 1);
6963 strcpy (filename
, module
->submodule_name
);
6964 strcat (filename
, SUBMODULE_EXTENSION
);
6967 /* First, try to find an non-intrinsic module, unless the USE statement
6968 specified that the module is intrinsic. */
6970 if (!module
->intrinsic
)
6971 module_fp
= gzopen_included_file (filename
, true, true);
6973 /* Then, see if it's an intrinsic one, unless the USE statement
6974 specified that the module is non-intrinsic. */
6975 if (module_fp
== NULL
&& !module
->non_intrinsic
)
6977 if (strcmp (module_name
, "iso_fortran_env") == 0
6978 && gfc_notify_std (GFC_STD_F2003
, "ISO_FORTRAN_ENV "
6979 "intrinsic module at %C"))
6981 use_iso_fortran_env_module ();
6982 free_rename (module
->rename
);
6983 module
->rename
= NULL
;
6984 gfc_current_locus
= old_locus
;
6985 module
->intrinsic
= true;
6989 if (strcmp (module_name
, "iso_c_binding") == 0
6990 && gfc_notify_std (GFC_STD_F2003
, "ISO_C_BINDING module at %C"))
6992 import_iso_c_binding_module();
6993 free_rename (module
->rename
);
6994 module
->rename
= NULL
;
6995 gfc_current_locus
= old_locus
;
6996 module
->intrinsic
= true;
7000 module_fp
= gzopen_intrinsic_module (filename
);
7002 if (module_fp
== NULL
&& module
->intrinsic
)
7003 gfc_fatal_error ("Can't find an intrinsic module named %qs at %C",
7006 /* Check for the IEEE modules, so we can mark their symbols
7007 accordingly when we read them. */
7008 if (strcmp (module_name
, "ieee_features") == 0
7009 && gfc_notify_std (GFC_STD_F2003
, "IEEE_FEATURES module at %C"))
7011 current_intmod
= INTMOD_IEEE_FEATURES
;
7013 else if (strcmp (module_name
, "ieee_exceptions") == 0
7014 && gfc_notify_std (GFC_STD_F2003
,
7015 "IEEE_EXCEPTIONS module at %C"))
7017 current_intmod
= INTMOD_IEEE_EXCEPTIONS
;
7019 else if (strcmp (module_name
, "ieee_arithmetic") == 0
7020 && gfc_notify_std (GFC_STD_F2003
,
7021 "IEEE_ARITHMETIC module at %C"))
7023 current_intmod
= INTMOD_IEEE_ARITHMETIC
;
7027 if (module_fp
== NULL
)
7029 if (gfc_state_stack
->state
!= COMP_SUBMODULE
7030 && module
->submodule_name
== NULL
)
7031 gfc_fatal_error ("Can't open module file %qs for reading at %C: %s",
7032 filename
, xstrerror (errno
));
7034 gfc_fatal_error ("Module file %qs has not been generated, either "
7035 "because the module does not contain a MODULE "
7036 "PROCEDURE or there is an error in the module.",
7040 /* Check that we haven't already USEd an intrinsic module with the
7043 mod_symtree
= gfc_find_symtree (gfc_current_ns
->sym_root
, module_name
);
7044 if (mod_symtree
&& mod_symtree
->n
.sym
->attr
.intrinsic
)
7045 gfc_error ("Use of non-intrinsic module %qs at %C conflicts with "
7046 "intrinsic module name used previously", module_name
);
7053 read_module_to_tmpbuf ();
7054 gzclose (module_fp
);
7056 /* Skip the first line of the module, after checking that this is
7057 a gfortran module file. */
7063 bad_module ("Unexpected end of module");
7066 if ((start
== 1 && strcmp (atom_name
, "GFORTRAN") != 0)
7067 || (start
== 2 && strcmp (atom_name
, " module") != 0))
7068 gfc_fatal_error ("File %qs opened at %C is not a GNU Fortran"
7069 " module file", filename
);
7072 if (strcmp (atom_name
, " version") != 0
7073 || module_char () != ' '
7074 || parse_atom () != ATOM_STRING
7075 || strcmp (atom_string
, MOD_VERSION
))
7076 gfc_fatal_error ("Cannot read module file %qs opened at %C,"
7077 " because it was created by a different"
7078 " version of GNU Fortran", filename
);
7087 /* Make sure we're not reading the same module that we may be building. */
7088 for (p
= gfc_state_stack
; p
; p
= p
->previous
)
7089 if ((p
->state
== COMP_MODULE
|| p
->state
== COMP_SUBMODULE
)
7090 && strcmp (p
->sym
->name
, module_name
) == 0)
7091 gfc_fatal_error ("Can't USE the same %smodule we're building",
7092 p
->state
== COMP_SUBMODULE
? "sub" : "");
7095 init_true_name_tree ();
7099 free_true_name (true_name_root
);
7100 true_name_root
= NULL
;
7102 free_pi_tree (pi_root
);
7105 XDELETEVEC (module_content
);
7106 module_content
= NULL
;
7108 use_stmt
= gfc_get_use_list ();
7109 *use_stmt
= *module
;
7110 use_stmt
->next
= gfc_current_ns
->use_stmts
;
7111 gfc_current_ns
->use_stmts
= use_stmt
;
7113 gfc_current_locus
= old_locus
;
7117 /* Remove duplicated intrinsic operators from the rename list. */
7120 rename_list_remove_duplicate (gfc_use_rename
*list
)
7122 gfc_use_rename
*seek
, *last
;
7124 for (; list
; list
= list
->next
)
7125 if (list
->op
!= INTRINSIC_USER
&& list
->op
!= INTRINSIC_NONE
)
7128 for (seek
= list
->next
; seek
; seek
= last
->next
)
7130 if (list
->op
== seek
->op
)
7132 last
->next
= seek
->next
;
7142 /* Process all USE directives. */
7145 gfc_use_modules (void)
7147 gfc_use_list
*next
, *seek
, *last
;
7149 for (next
= module_list
; next
; next
= next
->next
)
7151 bool non_intrinsic
= next
->non_intrinsic
;
7152 bool intrinsic
= next
->intrinsic
;
7153 bool neither
= !non_intrinsic
&& !intrinsic
;
7155 for (seek
= next
->next
; seek
; seek
= seek
->next
)
7157 if (next
->module_name
!= seek
->module_name
)
7160 if (seek
->non_intrinsic
)
7161 non_intrinsic
= true;
7162 else if (seek
->intrinsic
)
7168 if (intrinsic
&& neither
&& !non_intrinsic
)
7173 filename
= XALLOCAVEC (char,
7174 strlen (next
->module_name
)
7175 + strlen (MODULE_EXTENSION
) + 1);
7176 strcpy (filename
, next
->module_name
);
7177 strcat (filename
, MODULE_EXTENSION
);
7178 fp
= gfc_open_included_file (filename
, true, true);
7181 non_intrinsic
= true;
7187 for (seek
= next
->next
; seek
; seek
= last
->next
)
7189 if (next
->module_name
!= seek
->module_name
)
7195 if ((!next
->intrinsic
&& !seek
->intrinsic
)
7196 || (next
->intrinsic
&& seek
->intrinsic
)
7199 if (!seek
->only_flag
)
7200 next
->only_flag
= false;
7203 gfc_use_rename
*r
= seek
->rename
;
7206 r
->next
= next
->rename
;
7207 next
->rename
= seek
->rename
;
7209 last
->next
= seek
->next
;
7217 for (; module_list
; module_list
= next
)
7219 next
= module_list
->next
;
7220 rename_list_remove_duplicate (module_list
->rename
);
7221 gfc_use_module (module_list
);
7224 gfc_rename_list
= NULL
;
7229 gfc_free_use_stmts (gfc_use_list
*use_stmts
)
7232 for (; use_stmts
; use_stmts
= next
)
7234 gfc_use_rename
*next_rename
;
7236 for (; use_stmts
->rename
; use_stmts
->rename
= next_rename
)
7238 next_rename
= use_stmts
->rename
->next
;
7239 free (use_stmts
->rename
);
7241 next
= use_stmts
->next
;
7248 gfc_module_init_2 (void)
7250 last_atom
= ATOM_LPAREN
;
7251 gfc_rename_list
= NULL
;
7257 gfc_module_done_2 (void)
7259 free_rename (gfc_rename_list
);
7260 gfc_rename_list
= NULL
;