1 /* Handle #pragma, system V.4 style. Supports #pragma weak and #pragma pack.
2 Copyright (C) 1992-2014 Free Software Foundation, Inc.
4 This file is part of GCC.
6 GCC is free software; you can redistribute it and/or modify it under
7 the terms of the GNU General Public License as published by the Free
8 Software Foundation; either version 3, or (at your option) any later
11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING3. If not see
18 <http://www.gnu.org/licenses/>. */
22 #include "coretypes.h"
25 #include "stringpool.h"
28 #include "gcc-symtab.h"
29 #include "function.h" /* For cfun. FIXME: Does the parser know
30 when it is inside a function, so that
31 we don't have to look at cfun? */
35 #include "langhooks.h"
38 #include "tm_p.h" /* For REGISTER_TARGET_PRAGMAS (why is
39 this not a target hook?). */
42 #include "diagnostic.h"
47 #define GCC_BAD(gmsgid) \
48 do { warning (OPT_Wpragmas, gmsgid); return; } while (0)
49 #define GCC_BAD2(gmsgid, arg) \
50 do { warning (OPT_Wpragmas, gmsgid, arg); return; } while (0)
52 typedef struct GTY(()) align_stack
{
55 struct align_stack
* prev
;
58 static GTY(()) struct align_stack
* alignment_stack
;
60 static void handle_pragma_pack (cpp_reader
*);
62 /* If we have a "global" #pragma pack(<n>) in effect when the first
63 #pragma pack(push,<n>) is encountered, this stores the value of
64 maximum_field_alignment in effect. When the final pop_alignment()
65 happens, we restore the value to this, not to a value of 0 for
66 maximum_field_alignment. Value is in bits. */
67 static int default_alignment
;
68 #define SET_GLOBAL_ALIGNMENT(ALIGN) (maximum_field_alignment = *(alignment_stack == NULL \
69 ? &default_alignment \
70 : &alignment_stack->alignment) = (ALIGN))
72 static void push_alignment (int, tree
);
73 static void pop_alignment (tree
);
75 /* Push an alignment value onto the stack. */
77 push_alignment (int alignment
, tree id
)
81 entry
= ggc_alloc_align_stack ();
83 entry
->alignment
= alignment
;
85 entry
->prev
= alignment_stack
;
87 /* The current value of maximum_field_alignment is not necessarily
88 0 since there may be a #pragma pack(<n>) in effect; remember it
89 so that we can restore it after the final #pragma pop(). */
90 if (alignment_stack
== NULL
)
91 default_alignment
= maximum_field_alignment
;
93 alignment_stack
= entry
;
95 maximum_field_alignment
= alignment
;
98 /* Undo a push of an alignment onto the stack. */
100 pop_alignment (tree id
)
104 if (alignment_stack
== NULL
)
105 GCC_BAD ("#pragma pack (pop) encountered without matching #pragma pack (push)");
107 /* If we got an identifier, strip away everything above the target
108 entry so that the next step will restore the state just below it. */
111 for (entry
= alignment_stack
; entry
; entry
= entry
->prev
)
114 alignment_stack
= entry
;
118 warning (OPT_Wpragmas
, "\
119 #pragma pack(pop, %E) encountered without matching #pragma pack(push, %E)"
123 entry
= alignment_stack
->prev
;
125 maximum_field_alignment
= entry
? entry
->alignment
: default_alignment
;
127 alignment_stack
= entry
;
134 #pragma pack (push, N)
135 #pragma pack (push, ID)
136 #pragma pack (push, ID, N)
138 #pragma pack (pop, ID) */
140 handle_pragma_pack (cpp_reader
* ARG_UNUSED (dummy
))
144 enum cpp_ttype token
;
145 enum { set
, push
, pop
} action
;
147 if (pragma_lex (&x
) != CPP_OPEN_PAREN
)
148 GCC_BAD ("missing %<(%> after %<#pragma pack%> - ignored");
150 token
= pragma_lex (&x
);
151 if (token
== CPP_CLOSE_PAREN
)
154 align
= initial_max_fld_align
;
156 else if (token
== CPP_NUMBER
)
158 if (TREE_CODE (x
) != INTEGER_CST
)
159 GCC_BAD ("invalid constant in %<#pragma pack%> - ignored");
160 align
= TREE_INT_CST_LOW (x
);
162 if (pragma_lex (&x
) != CPP_CLOSE_PAREN
)
163 GCC_BAD ("malformed %<#pragma pack%> - ignored");
165 else if (token
== CPP_NAME
)
167 #define GCC_BAD_ACTION do { if (action != pop) \
168 GCC_BAD ("malformed %<#pragma pack(push[, id][, <n>])%> - ignored"); \
170 GCC_BAD ("malformed %<#pragma pack(pop[, id])%> - ignored"); \
173 const char *op
= IDENTIFIER_POINTER (x
);
174 if (!strcmp (op
, "push"))
176 else if (!strcmp (op
, "pop"))
179 GCC_BAD2 ("unknown action %qE for %<#pragma pack%> - ignored", x
);
181 while ((token
= pragma_lex (&x
)) == CPP_COMMA
)
183 token
= pragma_lex (&x
);
184 if (token
== CPP_NAME
&& id
== 0)
188 else if (token
== CPP_NUMBER
&& action
== push
&& align
== -1)
190 if (TREE_CODE (x
) != INTEGER_CST
)
191 GCC_BAD ("invalid constant in %<#pragma pack%> - ignored");
192 align
= TREE_INT_CST_LOW (x
);
200 if (token
!= CPP_CLOSE_PAREN
)
202 #undef GCC_BAD_ACTION
205 GCC_BAD ("malformed %<#pragma pack%> - ignored");
207 if (pragma_lex (&x
) != CPP_EOF
)
208 warning (OPT_Wpragmas
, "junk at end of %<#pragma pack%>");
210 if (flag_pack_struct
)
211 GCC_BAD ("#pragma pack has no effect with -fpack-struct - ignored");
222 align
*= BITS_PER_UNIT
;
227 align
= maximum_field_alignment
;
231 GCC_BAD2 ("alignment must be a small power of two, not %d", align
);
236 case set
: SET_GLOBAL_ALIGNMENT (align
); break;
237 case push
: push_alignment (align
, id
); break;
238 case pop
: pop_alignment (id
); break;
242 typedef struct GTY(()) pending_weak_d
249 static GTY(()) vec
<pending_weak
, va_gc
> *pending_weaks
;
251 static void apply_pragma_weak (tree
, tree
);
252 static void handle_pragma_weak (cpp_reader
*);
255 apply_pragma_weak (tree decl
, tree value
)
259 value
= build_string (IDENTIFIER_LENGTH (value
),
260 IDENTIFIER_POINTER (value
));
261 decl_attributes (&decl
, build_tree_list (get_identifier ("alias"),
262 build_tree_list (NULL
, value
)),
266 if (SUPPORTS_WEAK
&& DECL_EXTERNAL (decl
) && TREE_USED (decl
)
267 && !DECL_WEAK (decl
) /* Don't complain about a redundant #pragma. */
268 && DECL_ASSEMBLER_NAME_SET_P (decl
)
269 && TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (decl
)))
270 warning (OPT_Wpragmas
, "applying #pragma weak %q+D after first use "
271 "results in unspecified behavior", decl
);
277 maybe_apply_pragma_weak (tree decl
)
283 /* Avoid asking for DECL_ASSEMBLER_NAME when it's not needed. */
285 /* No weak symbols pending, take the short-cut. */
286 if (vec_safe_is_empty (pending_weaks
))
288 /* If it's not visible outside this file, it doesn't matter whether
290 if (!DECL_EXTERNAL (decl
) && !TREE_PUBLIC (decl
))
292 /* If it's not a function or a variable, it can't be weak.
293 FIXME: what kinds of things are visible outside this file but
294 aren't functions or variables? Should this be an assert instead? */
295 if (TREE_CODE (decl
) != FUNCTION_DECL
&& TREE_CODE (decl
) != VAR_DECL
)
298 if (DECL_ASSEMBLER_NAME_SET_P (decl
))
299 id
= DECL_ASSEMBLER_NAME (decl
);
302 id
= DECL_ASSEMBLER_NAME (decl
);
303 SET_DECL_ASSEMBLER_NAME (decl
, NULL_TREE
);
306 FOR_EACH_VEC_ELT (*pending_weaks
, i
, pe
)
309 apply_pragma_weak (decl
, pe
->value
);
310 pending_weaks
->unordered_remove (i
);
315 /* Process all "#pragma weak A = B" directives where we have not seen
318 maybe_apply_pending_pragma_weaks (void)
320 tree alias_id
, id
, decl
;
325 if (vec_safe_is_empty (pending_weaks
))
328 FOR_EACH_VEC_ELT (*pending_weaks
, i
, pe
)
336 target
= symtab_node_for_asm (id
);
337 decl
= build_decl (UNKNOWN_LOCATION
,
338 target
? TREE_CODE (target
->decl
) : FUNCTION_DECL
,
339 alias_id
, default_function_type
);
341 DECL_ARTIFICIAL (decl
) = 1;
342 TREE_PUBLIC (decl
) = 1;
343 DECL_WEAK (decl
) = 1;
344 if (TREE_CODE (decl
) == VAR_DECL
)
345 TREE_STATIC (decl
) = 1;
348 error ("%q+D aliased to undefined symbol %qE",
353 assemble_alias (decl
, id
);
357 /* #pragma weak name [= value] */
359 handle_pragma_weak (cpp_reader
* ARG_UNUSED (dummy
))
361 tree name
, value
, x
, decl
;
366 if (pragma_lex (&name
) != CPP_NAME
)
367 GCC_BAD ("malformed #pragma weak, ignored");
371 if (pragma_lex (&value
) != CPP_NAME
)
372 GCC_BAD ("malformed #pragma weak, ignored");
376 warning (OPT_Wpragmas
, "junk at end of %<#pragma weak%>");
378 decl
= identifier_global_value (name
);
379 if (decl
&& DECL_P (decl
))
381 apply_pragma_weak (decl
, value
);
384 DECL_EXTERNAL (decl
) = 0;
385 if (TREE_CODE (decl
) == VAR_DECL
)
386 TREE_STATIC (decl
) = 1;
387 assemble_alias (decl
, value
);
392 pending_weak pe
= {name
, value
};
393 vec_safe_push (pending_weaks
, pe
);
397 /* GCC supports two #pragma directives for renaming the external
398 symbol associated with a declaration (DECL_ASSEMBLER_NAME), for
399 compatibility with the Solaris and VMS system headers. GCC also
400 has its own notation for this, __asm__("name") annotations.
402 Corner cases of these features and their interaction:
404 1) Both pragmas silently apply only to declarations with external
405 linkage (that is, TREE_PUBLIC || DECL_EXTERNAL). Asm labels
406 do not have this restriction.
408 2) In C++, both #pragmas silently apply only to extern "C" declarations.
409 Asm labels do not have this restriction.
411 3) If any of the three ways of changing DECL_ASSEMBLER_NAME is
412 applied to a decl whose DECL_ASSEMBLER_NAME is already set, and the
413 new name is different, a warning issues and the name does not change.
415 4) The "source name" for #pragma redefine_extname is the DECL_NAME,
416 *not* the DECL_ASSEMBLER_NAME.
418 5) If #pragma extern_prefix is in effect and a declaration occurs
419 with an __asm__ name, the #pragma extern_prefix is silently
420 ignored for that declaration.
422 6) If #pragma extern_prefix and #pragma redefine_extname apply to
423 the same declaration, whichever triggered first wins, and a warning
424 is issued. (We would like to have #pragma redefine_extname always
425 win, but it can appear either before or after the declaration, and
426 if it appears afterward, we have no way of knowing whether a modified
427 DECL_ASSEMBLER_NAME is due to #pragma extern_prefix.) */
429 typedef struct GTY(()) pending_redefinition_d
{
432 } pending_redefinition
;
435 static GTY(()) vec
<pending_redefinition
, va_gc
> *pending_redefine_extname
;
437 static void handle_pragma_redefine_extname (cpp_reader
*);
439 /* #pragma redefine_extname oldname newname */
441 handle_pragma_redefine_extname (cpp_reader
* ARG_UNUSED (dummy
))
443 tree oldname
, newname
, decls
, x
;
447 if (pragma_lex (&oldname
) != CPP_NAME
)
448 GCC_BAD ("malformed #pragma redefine_extname, ignored");
449 if (pragma_lex (&newname
) != CPP_NAME
)
450 GCC_BAD ("malformed #pragma redefine_extname, ignored");
453 warning (OPT_Wpragmas
, "junk at end of %<#pragma redefine_extname%>");
456 for (decls
= c_linkage_bindings (oldname
);
460 if (TREE_CODE (decls
) == TREE_LIST
)
462 decl
= TREE_VALUE (decls
);
463 decls
= TREE_CHAIN (decls
);
471 if ((TREE_PUBLIC (decl
) || DECL_EXTERNAL (decl
))
472 && (TREE_CODE (decl
) == FUNCTION_DECL
473 || TREE_CODE (decl
) == VAR_DECL
))
476 if (DECL_ASSEMBLER_NAME_SET_P (decl
))
478 const char *name
= IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl
));
479 name
= targetm
.strip_name_encoding (name
);
481 if (strcmp (name
, IDENTIFIER_POINTER (newname
)))
482 warning (OPT_Wpragmas
, "#pragma redefine_extname ignored due to "
483 "conflict with previous rename");
486 change_decl_assembler_name (decl
, newname
);
491 /* We have to add this to the rename list even if there's already
492 a global value that doesn't meet the above criteria, because in
493 C++ "struct foo {...};" puts "foo" in the current namespace but
494 does *not* conflict with a subsequent declaration of a function
495 or variable foo. See g++.dg/other/pragma-re-2.C. */
496 add_to_renaming_pragma_list (oldname
, newname
);
499 /* This is called from here and from ia64-c.c. */
501 add_to_renaming_pragma_list (tree oldname
, tree newname
)
504 pending_redefinition
*p
;
506 FOR_EACH_VEC_SAFE_ELT (pending_redefine_extname
, ix
, p
)
507 if (oldname
== p
->oldname
)
509 if (p
->newname
!= newname
)
510 warning (OPT_Wpragmas
, "#pragma redefine_extname ignored due to "
511 "conflict with previous #pragma redefine_extname");
515 pending_redefinition e
= {oldname
, newname
};
516 vec_safe_push (pending_redefine_extname
, e
);
519 /* The current prefix set by #pragma extern_prefix. */
520 GTY(()) tree pragma_extern_prefix
;
522 /* variables used to implement #pragma upc semantics */
523 #ifndef UPC_CMODE_STACK_INCREMENT
524 #define UPC_CMODE_STACK_INCREMENT 32
526 static int pragma_upc_permitted
;
527 static int upc_cmode
;
528 static int *upc_cmode_stack
;
529 static int upc_cmode_stack_in_use
;
530 static int upc_cmode_stack_allocated
;
532 static void init_pragma_upc (void);
533 static void handle_pragma_upc (cpp_reader
* ARG_UNUSED (dummy
));
535 /* Initialize the variables used to manage the current UPC consistency
536 mode (strict/relaxed) */
539 init_pragma_upc (void)
541 pragma_upc_permitted
= 0;
543 upc_cmode_stack
= (int *) xcalloc (UPC_CMODE_STACK_INCREMENT
,
545 upc_cmode_stack_allocated
= UPC_CMODE_STACK_INCREMENT
;
546 upc_cmode_stack_in_use
= 0;
551 * #pragma upc relaxed
552 * #pragma upc upc_code
556 handle_pragma_upc (cpp_reader
* ARG_UNUSED (dummy
))
560 enum upc_pragma_op
{p_strict
, p_relaxed
, p_upc_code
,
561 p_c_code
, p_detect_upc
, p_unknown
};
562 enum upc_pragma_op upc_pragma
= p_unknown
;
567 const char *op
= IDENTIFIER_POINTER (x
);
568 if (!strcmp (op
, "strict"))
569 upc_pragma
= p_strict
;
570 else if (!strcmp (op
, "relaxed"))
571 upc_pragma
= p_relaxed
;
572 else if (!strcmp (op
, "upc_code"))
573 upc_pragma
= p_upc_code
;
574 else if (!strcmp (op
, "c_code"))
575 upc_pragma
= p_c_code
;
576 else if (!strcmp (op
, "detect_upc"))
578 const char *detect_op
;
579 upc_pragma
= p_detect_upc
;
582 GCC_BAD ("missing [suspend_insertion|resume_insertion]"
583 " after %<#pragma UPC detect_upc%>");
584 detect_op
= IDENTIFIER_POINTER (x
);
585 if (strcmp (detect_op
, "suspend_insertion") == 0)
587 else if (strcmp (detect_op
, "resume_insertion") == 0)
590 GCC_BAD ("expected [suspend_insertion|resume_insertion]"
591 " after %<#pragma UPC detect_upc%>");
594 GCC_BAD2 ("unknown action '%s' for '#pragma upc' - ignored", op
);
597 warning (OPT_Wpragmas
, "missing parameter after #pragma upc");
601 warning (OPT_Wpragmas
, "junk at end of #pragma upc");
603 if ((upc_pragma
== p_strict
) || (upc_pragma
== p_relaxed
))
605 if (pragma_upc_permitted_p ())
607 int consistency_mode
= (upc_pragma
== p_strict
);
608 set_upc_consistency_mode (consistency_mode
);
611 warning (OPT_Wpragmas
, "#pragma upc not allowed in this context");
613 else if ((upc_pragma
== p_upc_code
) || (upc_pragma
== p_c_code
))
615 flag_upc
= (upc_pragma
== p_upc_code
);
616 lang_hooks
.upc
.toggle_keywords (flag_upc
);
618 else if (upc_pragma
== p_detect_upc
)
620 /* Skip: This is a Berkeley-specific pragma that requires no action. */
624 /* Set the current setting of the UPC consistency mode
625 that is in effect. */
628 set_upc_consistency_mode (int mode
)
633 /* Return the current setting of the UPC consistency mode. */
636 get_upc_consistency_mode (void)
641 /* Called from the parser just after the bracket that opens a compound
642 statement has been parsed. Set the flag that allows the pragma
646 permit_pragma_upc (void)
648 pragma_upc_permitted
= 1;
651 /* Called just before the body of a compound statement is parsed.
652 Clear the flag that allows the pragma. */
655 deny_pragma_upc (void)
657 pragma_upc_permitted
= 0;
660 /* A #pragma upc is permitted either at the outermost scope,
661 or directly after the bracket that opens a compound statement. */
664 pragma_upc_permitted_p (void)
666 return !current_function_decl
|| pragma_upc_permitted
;
669 /* Called at the beginning of every compound statement.
670 Pushes the old value of the current UPC consistency mode
674 push_upc_consistency_mode (void)
676 if (upc_cmode_stack_in_use
== upc_cmode_stack_allocated
)
678 upc_cmode_stack_allocated
+= UPC_CMODE_STACK_INCREMENT
;
679 upc_cmode_stack
= (int *) xrealloc (upc_cmode_stack
,
680 upc_cmode_stack_allocated
* sizeof (int));
682 upc_cmode_stack
[upc_cmode_stack_in_use
++] = upc_cmode
;
685 /* Called at the end of every compound statement.
686 Sets the current consistency mode to the previously saved value. */
689 pop_upc_consistency_mode (void)
691 if (upc_cmode_stack_in_use
<= 0)
693 upc_cmode
= upc_cmode_stack
[--upc_cmode_stack_in_use
];
696 static int pragma_pupc_on
;
697 static void init_pragma_pupc (void);
698 static void handle_pragma_pupc (cpp_reader
*);
700 /* Pragma pupc defaults to being on */
702 init_pragma_pupc (void)
708 get_upc_pupc_mode (void)
710 return pragma_pupc_on
;
714 disable_pupc_mode (void)
716 int old_pupc
= pragma_pupc_on
;
722 set_pupc_mode (int new_pupc
)
724 pragma_pupc_on
= new_pupc
;
732 handle_pragma_pupc (cpp_reader
*dummy ATTRIBUTE_UNUSED
)
739 const char *op
= IDENTIFIER_POINTER (x
);
740 if (!strcmp (op
, "on"))
742 else if (!strcmp (op
, "off"))
745 GCC_BAD2 ("unknown action '%s' for '#pragma pupc' - ignored", op
);
750 warning (OPT_Wpragmas
, "junk at end of #pragma pupc");
753 /* Hook from the front ends to apply the results of one of the preceding
754 pragmas that rename variables. */
757 maybe_apply_renaming_pragma (tree decl
, tree asmname
)
760 pending_redefinition
*p
;
762 /* The renaming pragmas are only applied to declarations with
764 if ((TREE_CODE (decl
) != FUNCTION_DECL
&& TREE_CODE (decl
) != VAR_DECL
)
765 || (!TREE_PUBLIC (decl
) && !DECL_EXTERNAL (decl
))
766 || !has_c_linkage (decl
))
769 /* If the DECL_ASSEMBLER_NAME is already set, it does not change,
770 but we may warn about a rename that conflicts. */
771 if (DECL_ASSEMBLER_NAME_SET_P (decl
))
773 const char *oldname
= IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl
));
774 oldname
= targetm
.strip_name_encoding (oldname
);
776 if (asmname
&& strcmp (TREE_STRING_POINTER (asmname
), oldname
))
777 warning (OPT_Wpragmas
, "asm declaration ignored due to "
778 "conflict with previous rename");
780 /* Take any pending redefine_extname off the list. */
781 FOR_EACH_VEC_SAFE_ELT (pending_redefine_extname
, ix
, p
)
782 if (DECL_NAME (decl
) == p
->oldname
)
784 /* Only warn if there is a conflict. */
785 if (strcmp (IDENTIFIER_POINTER (p
->newname
), oldname
))
786 warning (OPT_Wpragmas
, "#pragma redefine_extname ignored due to "
787 "conflict with previous rename");
789 pending_redefine_extname
->unordered_remove (ix
);
795 /* Find out if we have a pending #pragma redefine_extname. */
796 FOR_EACH_VEC_SAFE_ELT (pending_redefine_extname
, ix
, p
)
797 if (DECL_NAME (decl
) == p
->oldname
)
799 tree newname
= p
->newname
;
800 pending_redefine_extname
->unordered_remove (ix
);
802 /* If we already have an asmname, #pragma redefine_extname is
803 ignored (with a warning if it conflicts). */
806 if (strcmp (TREE_STRING_POINTER (asmname
),
807 IDENTIFIER_POINTER (newname
)) != 0)
808 warning (OPT_Wpragmas
, "#pragma redefine_extname ignored due to "
809 "conflict with __asm__ declaration");
813 /* Otherwise we use what we've got; #pragma extern_prefix is
815 return build_string (IDENTIFIER_LENGTH (newname
),
816 IDENTIFIER_POINTER (newname
));
819 /* If we've got an asmname, #pragma extern_prefix is silently ignored. */
823 /* If #pragma extern_prefix is in effect, apply it. */
824 if (pragma_extern_prefix
)
826 const char *prefix
= TREE_STRING_POINTER (pragma_extern_prefix
);
827 size_t plen
= TREE_STRING_LENGTH (pragma_extern_prefix
) - 1;
829 const char *id
= IDENTIFIER_POINTER (DECL_NAME (decl
));
830 size_t ilen
= IDENTIFIER_LENGTH (DECL_NAME (decl
));
832 char *newname
= (char *) alloca (plen
+ ilen
+ 1);
834 memcpy (newname
, prefix
, plen
);
835 memcpy (newname
+ plen
, id
, ilen
+ 1);
837 return build_string (plen
+ ilen
, newname
);
845 static void handle_pragma_visibility (cpp_reader
*);
847 static vec
<int> visstack
;
849 /* Push the visibility indicated by STR onto the top of the #pragma
850 visibility stack. KIND is 0 for #pragma GCC visibility, 1 for
851 C++ namespace with visibility attribute and 2 for C++ builtin
852 ABI namespace. push_visibility/pop_visibility calls must have
853 matching KIND, it is not allowed to push visibility using one
854 KIND and pop using a different one. */
857 push_visibility (const char *str
, int kind
)
859 visstack
.safe_push (((int) default_visibility
) | (kind
<< 8));
860 if (!strcmp (str
, "default"))
861 default_visibility
= VISIBILITY_DEFAULT
;
862 else if (!strcmp (str
, "internal"))
863 default_visibility
= VISIBILITY_INTERNAL
;
864 else if (!strcmp (str
, "hidden"))
865 default_visibility
= VISIBILITY_HIDDEN
;
866 else if (!strcmp (str
, "protected"))
867 default_visibility
= VISIBILITY_PROTECTED
;
869 GCC_BAD ("#pragma GCC visibility push() must specify default, internal, hidden or protected");
870 visibility_options
.inpragma
= 1;
873 /* Pop a level of the #pragma visibility stack. Return true if
877 pop_visibility (int kind
)
879 if (!visstack
.length ())
881 if ((visstack
.last () >> 8) != kind
)
884 = (enum symbol_visibility
) (visstack
.pop () & 0xff);
885 visibility_options
.inpragma
886 = visstack
.length () != 0;
890 /* Sets the default visibility for symbols to something other than that
891 specified on the command line. */
894 handle_pragma_visibility (cpp_reader
*dummy ATTRIBUTE_UNUSED
)
896 /* Form is #pragma GCC visibility push(hidden)|pop */
898 enum cpp_ttype token
;
899 enum { bad
, push
, pop
} action
= bad
;
901 token
= pragma_lex (&x
);
902 if (token
== CPP_NAME
)
904 const char *op
= IDENTIFIER_POINTER (x
);
905 if (!strcmp (op
, "push"))
907 else if (!strcmp (op
, "pop"))
911 GCC_BAD ("#pragma GCC visibility must be followed by push or pop");
916 if (! pop_visibility (0))
917 GCC_BAD ("no matching push for %<#pragma GCC visibility pop%>");
921 if (pragma_lex (&x
) != CPP_OPEN_PAREN
)
922 GCC_BAD ("missing %<(%> after %<#pragma GCC visibility push%> - ignored");
923 token
= pragma_lex (&x
);
924 if (token
!= CPP_NAME
)
925 GCC_BAD ("malformed #pragma GCC visibility push");
927 push_visibility (IDENTIFIER_POINTER (x
), 0);
928 if (pragma_lex (&x
) != CPP_CLOSE_PAREN
)
929 GCC_BAD ("missing %<(%> after %<#pragma GCC visibility push%> - ignored");
932 if (pragma_lex (&x
) != CPP_EOF
)
933 warning (OPT_Wpragmas
, "junk at end of %<#pragma GCC visibility%>");
937 handle_pragma_diagnostic(cpp_reader
*ARG_UNUSED(dummy
))
939 const char *kind_string
, *option_string
;
940 unsigned int option_index
;
941 enum cpp_ttype token
;
944 struct cl_option_handlers handlers
;
946 token
= pragma_lex (&x
);
947 if (token
!= CPP_NAME
)
948 GCC_BAD ("missing [error|warning|ignored] after %<#pragma GCC diagnostic%>");
949 kind_string
= IDENTIFIER_POINTER (x
);
950 if (strcmp (kind_string
, "error") == 0)
952 else if (strcmp (kind_string
, "warning") == 0)
954 else if (strcmp (kind_string
, "ignored") == 0)
956 else if (strcmp (kind_string
, "push") == 0)
958 diagnostic_push_diagnostics (global_dc
, input_location
);
961 else if (strcmp (kind_string
, "pop") == 0)
963 diagnostic_pop_diagnostics (global_dc
, input_location
);
967 GCC_BAD ("expected [error|warning|ignored|push|pop] after %<#pragma GCC diagnostic%>");
969 token
= pragma_lex (&x
);
970 if (token
!= CPP_STRING
)
971 GCC_BAD ("missing option after %<#pragma GCC diagnostic%> kind");
972 option_string
= TREE_STRING_POINTER (x
);
973 set_default_handlers (&handlers
);
974 for (option_index
= 0; option_index
< cl_options_count
; option_index
++)
975 if (strcmp (cl_options
[option_index
].opt_text
, option_string
) == 0)
977 control_warning_option (option_index
, (int) kind
, kind
!= DK_IGNORED
,
978 input_location
, c_family_lang_mask
, &handlers
,
979 &global_options
, &global_options_set
,
983 GCC_BAD ("unknown option after %<#pragma GCC diagnostic%> kind");
986 /* Parse #pragma GCC target (xxx) to set target specific options. */
988 handle_pragma_target(cpp_reader
*ARG_UNUSED(dummy
))
990 enum cpp_ttype token
;
992 bool close_paren_needed_p
= false;
996 error ("#pragma GCC option is not allowed inside functions");
1000 token
= pragma_lex (&x
);
1001 if (token
== CPP_OPEN_PAREN
)
1003 close_paren_needed_p
= true;
1004 token
= pragma_lex (&x
);
1007 if (token
!= CPP_STRING
)
1009 GCC_BAD ("%<#pragma GCC option%> is not a string");
1013 /* Strings are user options. */
1016 tree args
= NULL_TREE
;
1020 /* Build up the strings now as a tree linked list. Skip empty
1022 if (TREE_STRING_LENGTH (x
) > 0)
1023 args
= tree_cons (NULL_TREE
, x
, args
);
1025 token
= pragma_lex (&x
);
1026 while (token
== CPP_COMMA
)
1027 token
= pragma_lex (&x
);
1029 while (token
== CPP_STRING
);
1031 if (close_paren_needed_p
)
1033 if (token
== CPP_CLOSE_PAREN
)
1034 token
= pragma_lex (&x
);
1036 GCC_BAD ("%<#pragma GCC target (string [,string]...)%> does "
1037 "not have a final %<)%>");
1040 if (token
!= CPP_EOF
)
1042 error ("#pragma GCC target string... is badly formed");
1046 /* put arguments in the order the user typed them. */
1047 args
= nreverse (args
);
1049 if (targetm
.target_option
.pragma_parse (args
, NULL_TREE
))
1050 current_target_pragma
= args
;
1054 /* Handle #pragma GCC optimize to set optimization options. */
1056 handle_pragma_optimize (cpp_reader
*ARG_UNUSED(dummy
))
1058 enum cpp_ttype token
;
1060 bool close_paren_needed_p
= false;
1061 tree optimization_previous_node
= optimization_current_node
;
1065 error ("#pragma GCC optimize is not allowed inside functions");
1069 token
= pragma_lex (&x
);
1070 if (token
== CPP_OPEN_PAREN
)
1072 close_paren_needed_p
= true;
1073 token
= pragma_lex (&x
);
1076 if (token
!= CPP_STRING
&& token
!= CPP_NUMBER
)
1078 GCC_BAD ("%<#pragma GCC optimize%> is not a string or number");
1082 /* Strings/numbers are user options. */
1085 tree args
= NULL_TREE
;
1089 /* Build up the numbers/strings now as a list. */
1090 if (token
!= CPP_STRING
|| TREE_STRING_LENGTH (x
) > 0)
1091 args
= tree_cons (NULL_TREE
, x
, args
);
1093 token
= pragma_lex (&x
);
1094 while (token
== CPP_COMMA
)
1095 token
= pragma_lex (&x
);
1097 while (token
== CPP_STRING
|| token
== CPP_NUMBER
);
1099 if (close_paren_needed_p
)
1101 if (token
== CPP_CLOSE_PAREN
)
1102 token
= pragma_lex (&x
);
1104 GCC_BAD ("%<#pragma GCC optimize (string [,string]...)%> does "
1105 "not have a final %<)%>");
1108 if (token
!= CPP_EOF
)
1110 error ("#pragma GCC optimize string... is badly formed");
1114 /* put arguments in the order the user typed them. */
1115 args
= nreverse (args
);
1117 parse_optimize_options (args
, false);
1118 current_optimize_pragma
= chainon (current_optimize_pragma
, args
);
1119 optimization_current_node
= build_optimization_node (&global_options
);
1120 c_cpp_builtins_optimize_pragma (parse_in
,
1121 optimization_previous_node
,
1122 optimization_current_node
);
1126 /* Stack of the #pragma GCC options created with #pragma GCC push_option. Save
1127 both the binary representation of the options and the TREE_LIST of
1128 strings that will be added to the function's attribute list. */
1129 typedef struct GTY(()) opt_stack
{
1130 struct opt_stack
*prev
;
1132 tree target_strings
;
1133 tree optimize_binary
;
1134 tree optimize_strings
;
1137 static GTY(()) struct opt_stack
* options_stack
;
1139 /* Handle #pragma GCC push_options to save the current target and optimization
1143 handle_pragma_push_options (cpp_reader
*ARG_UNUSED(dummy
))
1145 enum cpp_ttype token
;
1149 token
= pragma_lex (&x
);
1150 if (token
!= CPP_EOF
)
1152 warning (OPT_Wpragmas
, "junk at end of %<#pragma push_options%>");
1156 p
= ggc_alloc_opt_stack ();
1157 p
->prev
= options_stack
;
1160 /* Save optimization and target flags in binary format. */
1161 p
->optimize_binary
= build_optimization_node (&global_options
);
1162 p
->target_binary
= build_target_option_node (&global_options
);
1164 /* Save optimization and target flags in string list format. */
1165 p
->optimize_strings
= copy_list (current_optimize_pragma
);
1166 p
->target_strings
= copy_list (current_target_pragma
);
1169 /* Handle #pragma GCC pop_options to restore the current target and
1170 optimization options from a previous push_options. */
1173 handle_pragma_pop_options (cpp_reader
*ARG_UNUSED(dummy
))
1175 enum cpp_ttype token
;
1179 token
= pragma_lex (&x
);
1180 if (token
!= CPP_EOF
)
1182 warning (OPT_Wpragmas
, "junk at end of %<#pragma pop_options%>");
1186 if (! options_stack
)
1188 warning (OPT_Wpragmas
,
1189 "%<#pragma GCC pop_options%> without a corresponding "
1190 "%<#pragma GCC push_options%>");
1195 options_stack
= p
->prev
;
1197 if (p
->target_binary
!= target_option_current_node
)
1199 (void) targetm
.target_option
.pragma_parse (NULL_TREE
, p
->target_binary
);
1200 target_option_current_node
= p
->target_binary
;
1203 if (p
->optimize_binary
!= optimization_current_node
)
1205 tree old_optimize
= optimization_current_node
;
1206 cl_optimization_restore (&global_options
,
1207 TREE_OPTIMIZATION (p
->optimize_binary
));
1208 c_cpp_builtins_optimize_pragma (parse_in
, old_optimize
,
1209 p
->optimize_binary
);
1210 optimization_current_node
= p
->optimize_binary
;
1213 current_target_pragma
= p
->target_strings
;
1214 current_optimize_pragma
= p
->optimize_strings
;
1217 /* Handle #pragma GCC reset_options to restore the current target and
1218 optimization options to the original options used on the command line. */
1221 handle_pragma_reset_options (cpp_reader
*ARG_UNUSED(dummy
))
1223 enum cpp_ttype token
;
1225 tree new_optimize
= optimization_default_node
;
1226 tree new_target
= target_option_default_node
;
1228 token
= pragma_lex (&x
);
1229 if (token
!= CPP_EOF
)
1231 warning (OPT_Wpragmas
, "junk at end of %<#pragma reset_options%>");
1235 if (new_target
!= target_option_current_node
)
1237 (void) targetm
.target_option
.pragma_parse (NULL_TREE
, new_target
);
1238 target_option_current_node
= new_target
;
1241 if (new_optimize
!= optimization_current_node
)
1243 tree old_optimize
= optimization_current_node
;
1244 cl_optimization_restore (&global_options
,
1245 TREE_OPTIMIZATION (new_optimize
));
1246 c_cpp_builtins_optimize_pragma (parse_in
, old_optimize
, new_optimize
);
1247 optimization_current_node
= new_optimize
;
1250 current_target_pragma
= NULL_TREE
;
1251 current_optimize_pragma
= NULL_TREE
;
1254 /* Print a plain user-specified message. */
1257 handle_pragma_message (cpp_reader
*ARG_UNUSED(dummy
))
1259 enum cpp_ttype token
;
1260 tree x
, message
= 0;
1262 token
= pragma_lex (&x
);
1263 if (token
== CPP_OPEN_PAREN
)
1265 token
= pragma_lex (&x
);
1266 if (token
== CPP_STRING
)
1269 GCC_BAD ("expected a string after %<#pragma message%>");
1270 if (pragma_lex (&x
) != CPP_CLOSE_PAREN
)
1271 GCC_BAD ("malformed %<#pragma message%>, ignored");
1273 else if (token
== CPP_STRING
)
1276 GCC_BAD ("expected a string after %<#pragma message%>");
1278 gcc_assert (message
);
1280 if (pragma_lex (&x
) != CPP_EOF
)
1281 warning (OPT_Wpragmas
, "junk at end of %<#pragma message%>");
1283 if (TREE_STRING_LENGTH (message
) > 1)
1284 inform (input_location
, "#pragma message: %s", TREE_STRING_POINTER (message
));
1287 /* Mark whether the current location is valid for a STDC pragma. */
1289 static bool valid_location_for_stdc_pragma
;
1292 mark_valid_location_for_stdc_pragma (bool flag
)
1294 valid_location_for_stdc_pragma
= flag
;
1297 /* Return true if the current location is valid for a STDC pragma. */
1300 valid_location_for_stdc_pragma_p (void)
1302 return valid_location_for_stdc_pragma
;
1305 enum pragma_switch_t
{ PRAGMA_ON
, PRAGMA_OFF
, PRAGMA_DEFAULT
, PRAGMA_BAD
};
1307 /* A STDC pragma must appear outside of external declarations or
1308 preceding all explicit declarations and statements inside a compound
1309 statement; its behavior is undefined if used in any other context.
1310 It takes a switch of ON, OFF, or DEFAULT. */
1312 static enum pragma_switch_t
1313 handle_stdc_pragma (const char *pname
)
1317 enum pragma_switch_t ret
;
1319 if (!valid_location_for_stdc_pragma_p ())
1321 warning (OPT_Wpragmas
, "invalid location for %<pragma %s%>, ignored",
1326 if (pragma_lex (&t
) != CPP_NAME
)
1328 warning (OPT_Wpragmas
, "malformed %<#pragma %s%>, ignored", pname
);
1332 arg
= IDENTIFIER_POINTER (t
);
1334 if (!strcmp (arg
, "ON"))
1336 else if (!strcmp (arg
, "OFF"))
1338 else if (!strcmp (arg
, "DEFAULT"))
1339 ret
= PRAGMA_DEFAULT
;
1342 warning (OPT_Wpragmas
, "malformed %<#pragma %s%>, ignored", pname
);
1346 if (pragma_lex (&t
) != CPP_EOF
)
1348 warning (OPT_Wpragmas
, "junk at end of %<#pragma %s%>", pname
);
1355 /* #pragma STDC FLOAT_CONST_DECIMAL64 ON
1356 #pragma STDC FLOAT_CONST_DECIMAL64 OFF
1357 #pragma STDC FLOAT_CONST_DECIMAL64 DEFAULT */
1360 handle_pragma_float_const_decimal64 (cpp_reader
*ARG_UNUSED (dummy
))
1362 if (c_dialect_cxx ())
1364 if (warn_unknown_pragmas
> in_system_header_at (input_location
))
1365 warning (OPT_Wunknown_pragmas
,
1366 "%<#pragma STDC FLOAT_CONST_DECIMAL64%> is not supported"
1371 if (!targetm
.decimal_float_supported_p ())
1373 if (warn_unknown_pragmas
> in_system_header_at (input_location
))
1374 warning (OPT_Wunknown_pragmas
,
1375 "%<#pragma STDC FLOAT_CONST_DECIMAL64%> is not supported"
1380 pedwarn (input_location
, OPT_Wpedantic
,
1381 "ISO C does not support %<#pragma STDC FLOAT_CONST_DECIMAL64%>");
1383 switch (handle_stdc_pragma ("STDC FLOAT_CONST_DECIMAL64"))
1386 set_float_const_decimal64 ();
1389 case PRAGMA_DEFAULT
:
1390 clear_float_const_decimal64 ();
1397 /* A vector of registered pragma callbacks, which is never freed. */
1399 static vec
<internal_pragma_handler
> registered_pragmas
;
1408 static vec
<pragma_ns_name
> registered_pp_pragmas
;
1410 struct omp_pragma_def
{ const char *name
; unsigned int id
; };
1411 static const struct omp_pragma_def omp_pragmas
[] = {
1412 { "atomic", PRAGMA_OMP_ATOMIC
},
1413 { "barrier", PRAGMA_OMP_BARRIER
},
1414 { "cancel", PRAGMA_OMP_CANCEL
},
1415 { "cancellation", PRAGMA_OMP_CANCELLATION_POINT
},
1416 { "critical", PRAGMA_OMP_CRITICAL
},
1417 { "end", PRAGMA_OMP_END_DECLARE_TARGET
},
1418 { "flush", PRAGMA_OMP_FLUSH
},
1419 { "master", PRAGMA_OMP_MASTER
},
1420 { "ordered", PRAGMA_OMP_ORDERED
},
1421 { "section", PRAGMA_OMP_SECTION
},
1422 { "sections", PRAGMA_OMP_SECTIONS
},
1423 { "single", PRAGMA_OMP_SINGLE
},
1424 { "taskgroup", PRAGMA_OMP_TASKGROUP
},
1425 { "taskwait", PRAGMA_OMP_TASKWAIT
},
1426 { "taskyield", PRAGMA_OMP_TASKYIELD
},
1427 { "threadprivate", PRAGMA_OMP_THREADPRIVATE
}
1429 static const struct omp_pragma_def omp_pragmas_simd
[] = {
1430 { "declare", PRAGMA_OMP_DECLARE_REDUCTION
},
1431 { "distribute", PRAGMA_OMP_DISTRIBUTE
},
1432 { "for", PRAGMA_OMP_FOR
},
1433 { "parallel", PRAGMA_OMP_PARALLEL
},
1434 { "simd", PRAGMA_OMP_SIMD
},
1435 { "target", PRAGMA_OMP_TARGET
},
1436 { "task", PRAGMA_OMP_TASK
},
1437 { "teams", PRAGMA_OMP_TEAMS
},
1441 c_pp_lookup_pragma (unsigned int id
, const char **space
, const char **name
)
1443 const int n_omp_pragmas
= sizeof (omp_pragmas
) / sizeof (*omp_pragmas
);
1444 const int n_omp_pragmas_simd
= sizeof (omp_pragmas_simd
)
1445 / sizeof (*omp_pragmas
);
1448 for (i
= 0; i
< n_omp_pragmas
; ++i
)
1449 if (omp_pragmas
[i
].id
== id
)
1452 *name
= omp_pragmas
[i
].name
;
1456 for (i
= 0; i
< n_omp_pragmas_simd
; ++i
)
1457 if (omp_pragmas_simd
[i
].id
== id
)
1460 *name
= omp_pragmas_simd
[i
].name
;
1464 if (id
== PRAGMA_CILK_SIMD
)
1471 if (id
>= PRAGMA_FIRST_EXTERNAL
1472 && (id
< PRAGMA_FIRST_EXTERNAL
+ registered_pp_pragmas
.length ()))
1474 *space
= registered_pp_pragmas
[id
- PRAGMA_FIRST_EXTERNAL
].space
;
1475 *name
= registered_pp_pragmas
[id
- PRAGMA_FIRST_EXTERNAL
].name
;
1482 /* Front-end wrappers for pragma registration to avoid dragging
1483 cpplib.h in almost everywhere. */
1486 c_register_pragma_1 (const char *space
, const char *name
,
1487 internal_pragma_handler ihandler
, bool allow_expansion
)
1491 if (flag_preprocess_only
)
1493 pragma_ns_name ns_name
;
1495 if (!allow_expansion
)
1498 ns_name
.space
= space
;
1499 ns_name
.name
= name
;
1500 registered_pp_pragmas
.safe_push (ns_name
);
1501 id
= registered_pp_pragmas
.length ();
1502 id
+= PRAGMA_FIRST_EXTERNAL
- 1;
1506 registered_pragmas
.safe_push (ihandler
);
1507 id
= registered_pragmas
.length ();
1508 id
+= PRAGMA_FIRST_EXTERNAL
- 1;
1510 /* The C++ front end allocates 6 bits in cp_token; the C front end
1511 allocates 7 bits in c_token. At present this is sufficient. */
1512 gcc_assert (id
< 64);
1515 cpp_register_deferred_pragma (parse_in
, space
, name
, id
,
1516 allow_expansion
, false);
1519 /* Register a C pragma handler, using a space and a name. It disallows pragma
1520 expansion (if you want it, use c_register_pragma_with_expansion instead). */
1522 c_register_pragma (const char *space
, const char *name
,
1523 pragma_handler_1arg handler
)
1525 internal_pragma_handler ihandler
;
1527 ihandler
.handler
.handler_1arg
= handler
;
1528 ihandler
.extra_data
= false;
1529 ihandler
.data
= NULL
;
1530 c_register_pragma_1 (space
, name
, ihandler
, false);
1533 /* Register a C pragma handler, using a space and a name, it also carries an
1534 extra data field which can be used by the handler. It disallows pragma
1535 expansion (if you want it, use c_register_pragma_with_expansion_and_data
1538 c_register_pragma_with_data (const char *space
, const char *name
,
1539 pragma_handler_2arg handler
, void * data
)
1541 internal_pragma_handler ihandler
;
1543 ihandler
.handler
.handler_2arg
= handler
;
1544 ihandler
.extra_data
= true;
1545 ihandler
.data
= data
;
1546 c_register_pragma_1 (space
, name
, ihandler
, false);
1549 /* Register a C pragma handler, using a space and a name. It allows pragma
1550 expansion as in the following example:
1553 #pragma count (NUMBER)
1555 Name expansion is still disallowed. */
1557 c_register_pragma_with_expansion (const char *space
, const char *name
,
1558 pragma_handler_1arg handler
)
1560 internal_pragma_handler ihandler
;
1562 ihandler
.handler
.handler_1arg
= handler
;
1563 ihandler
.extra_data
= false;
1564 ihandler
.data
= NULL
;
1565 c_register_pragma_1 (space
, name
, ihandler
, true);
1568 /* Register a C pragma handler, using a space and a name, it also carries an
1569 extra data field which can be used by the handler. It allows pragma
1570 expansion as in the following example:
1573 #pragma count (NUMBER)
1575 Name expansion is still disallowed. */
1577 c_register_pragma_with_expansion_and_data (const char *space
, const char *name
,
1578 pragma_handler_2arg handler
,
1581 internal_pragma_handler ihandler
;
1583 ihandler
.handler
.handler_2arg
= handler
;
1584 ihandler
.extra_data
= true;
1585 ihandler
.data
= data
;
1586 c_register_pragma_1 (space
, name
, ihandler
, true);
1590 c_invoke_pragma_handler (unsigned int id
)
1592 internal_pragma_handler
*ihandler
;
1593 pragma_handler_1arg handler_1arg
;
1594 pragma_handler_2arg handler_2arg
;
1596 id
-= PRAGMA_FIRST_EXTERNAL
;
1597 ihandler
= ®istered_pragmas
[id
];
1598 if (ihandler
->extra_data
)
1600 handler_2arg
= ihandler
->handler
.handler_2arg
;
1601 handler_2arg (parse_in
, ihandler
->data
);
1605 handler_1arg
= ihandler
->handler
.handler_1arg
;
1606 handler_1arg (parse_in
);
1610 /* Set up front-end pragmas. */
1616 const int n_omp_pragmas
= sizeof (omp_pragmas
) / sizeof (*omp_pragmas
);
1619 for (i
= 0; i
< n_omp_pragmas
; ++i
)
1620 cpp_register_deferred_pragma (parse_in
, "omp", omp_pragmas
[i
].name
,
1621 omp_pragmas
[i
].id
, true, true);
1623 if (flag_openmp
|| flag_openmp_simd
)
1625 const int n_omp_pragmas_simd
= sizeof (omp_pragmas_simd
)
1626 / sizeof (*omp_pragmas
);
1629 for (i
= 0; i
< n_omp_pragmas_simd
; ++i
)
1630 cpp_register_deferred_pragma (parse_in
, "omp", omp_pragmas_simd
[i
].name
,
1631 omp_pragmas_simd
[i
].id
, true, true);
1635 cpp_register_deferred_pragma (parse_in
, NULL
, "simd", PRAGMA_CILK_SIMD
,
1638 if (!flag_preprocess_only
)
1639 cpp_register_deferred_pragma (parse_in
, "GCC", "pch_preprocess",
1640 PRAGMA_GCC_PCH_PREPROCESS
, false, false);
1642 if (!flag_preprocess_only
)
1643 cpp_register_deferred_pragma (parse_in
, "GCC", "ivdep", PRAGMA_IVDEP
, false,
1645 #ifdef HANDLE_PRAGMA_PACK_WITH_EXPANSION
1646 c_register_pragma_with_expansion (0, "pack", handle_pragma_pack
);
1648 c_register_pragma (0, "pack", handle_pragma_pack
);
1650 c_register_pragma (0, "weak", handle_pragma_weak
);
1651 c_register_pragma ("GCC", "visibility", handle_pragma_visibility
);
1653 c_register_pragma ("GCC", "diagnostic", handle_pragma_diagnostic
);
1654 c_register_pragma ("GCC", "target", handle_pragma_target
);
1655 c_register_pragma ("GCC", "optimize", handle_pragma_optimize
);
1656 c_register_pragma ("GCC", "push_options", handle_pragma_push_options
);
1657 c_register_pragma ("GCC", "pop_options", handle_pragma_pop_options
);
1658 c_register_pragma ("GCC", "reset_options", handle_pragma_reset_options
);
1660 c_register_pragma ("STDC", "FLOAT_CONST_DECIMAL64",
1661 handle_pragma_float_const_decimal64
);
1663 c_register_pragma_with_expansion (0, "redefine_extname",
1664 handle_pragma_redefine_extname
);
1666 c_register_pragma_with_expansion (0, "message", handle_pragma_message
);
1670 c_register_pragma (0, "upc", handle_pragma_upc
);
1672 c_register_pragma (0, "pupc", handle_pragma_pupc
);
1673 init_pragma_pupc ();
1676 #ifdef REGISTER_TARGET_PRAGMAS
1677 REGISTER_TARGET_PRAGMAS ();
1680 /* Allow plugins to register their own pragmas. */
1681 invoke_plugin_callbacks (PLUGIN_PRAGMAS
, NULL
);
1684 #include "gt-c-family-c-pragma.h"