]>
Commit | Line | Data |
---|---|---|
b9161f44 | 1 | /* Various diagnostic subroutines for the GNU C language. |
5624e564 | 2 | Copyright (C) 2000-2015 Free Software Foundation, Inc. |
b9161f44 GDR |
3 | Contributed by Gabriel Dos Reis <gdr@codesourcery.com> |
4 | ||
1322177d | 5 | This file is part of GCC. |
b9161f44 | 6 | |
1322177d LB |
7 | GCC is free software; you can redistribute it and/or modify it under |
8 | the terms of the GNU General Public License as published by the Free | |
9dcd6f09 | 9 | Software Foundation; either version 3, or (at your option) any later |
1322177d | 10 | version. |
b9161f44 | 11 | |
1322177d LB |
12 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
13 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 | for more details. | |
b9161f44 GDR |
16 | |
17 | You should have received a copy of the GNU General Public License | |
9dcd6f09 NC |
18 | along with GCC; see the file COPYING3. If not see |
19 | <http://www.gnu.org/licenses/>. */ | |
b9161f44 GDR |
20 | |
21 | #include "config.h" | |
22 | #include "system.h" | |
4977bab6 ZW |
23 | #include "coretypes.h" |
24 | #include "tm.h" | |
40e23961 MC |
25 | #include "hash-set.h" |
26 | #include "vec.h" | |
27 | #include "symtab.h" | |
28 | #include "input.h" | |
29 | #include "alias.h" | |
30 | #include "double-int.h" | |
31 | #include "machmode.h" | |
32 | #include "inchash.h" | |
b9161f44 GDR |
33 | #include "tree.h" |
34 | #include "c-tree.h" | |
35 | #include "tm_p.h" | |
36 | #include "flags.h" | |
37 | #include "diagnostic.h" | |
177cce46 | 38 | #include "opts.h" |
b9161f44 | 39 | |
35aff4fb MP |
40 | /* Issue an ISO C99 pedantic warning MSGID if -pedantic outside C11 mode, |
41 | otherwise issue warning MSGID if -Wc99-c11-compat is specified. | |
42 | This function is supposed to be used for matters that are allowed in | |
43 | ISO C11 but not supported in ISO C99, thus we explicitly don't pedwarn | |
44 | when C11 is specified. */ | |
b9161f44 | 45 | |
35aff4fb | 46 | bool |
509c9d60 | 47 | pedwarn_c99 (location_t location, int opt, const char *gmsgid, ...) |
b9161f44 | 48 | { |
47b69537 | 49 | diagnostic_info diagnostic; |
e34d07f2 | 50 | va_list ap; |
35aff4fb | 51 | bool warned = false; |
c22cacf3 | 52 | |
4b794eaf | 53 | va_start (ap, gmsgid); |
35aff4fb MP |
54 | /* If desired, issue the C99/C11 compat warning, which is more specific |
55 | than -pedantic. */ | |
56 | if (warn_c99_c11_compat > 0) | |
57 | { | |
58 | diagnostic_set_info (&diagnostic, gmsgid, &ap, location, | |
59 | (pedantic && !flag_isoc11) | |
60 | ? DK_PEDWARN : DK_WARNING); | |
61 | diagnostic.option_index = OPT_Wc99_c11_compat; | |
62 | warned = report_diagnostic (&diagnostic); | |
63 | } | |
64 | /* -Wno-c99-c11-compat suppresses even the pedwarns. */ | |
65 | else if (warn_c99_c11_compat == 0) | |
66 | ; | |
67 | /* For -pedantic outside C11, issue a pedwarn. */ | |
68 | else if (pedantic && !flag_isoc11) | |
69 | { | |
70 | diagnostic_set_info (&diagnostic, gmsgid, &ap, location, DK_PEDWARN); | |
71 | diagnostic.option_index = opt; | |
72 | warned = report_diagnostic (&diagnostic); | |
73 | } | |
e34d07f2 | 74 | va_end (ap); |
35aff4fb | 75 | return warned; |
b9161f44 | 76 | } |
85617eba | 77 | |
f3bede71 MP |
78 | /* Issue an ISO C90 pedantic warning MSGID if -pedantic outside C99 mode, |
79 | otherwise issue warning MSGID if -Wc90-c99-compat is specified, or if | |
80 | a specific option such as -Wlong-long is specified. | |
81 | This function is supposed to be used for matters that are allowed in | |
82 | ISO C99 but not supported in ISO C90, thus we explicitly don't pedwarn | |
83 | when C99 is specified. (There is no flag_c90.) */ | |
85617eba HPN |
84 | |
85 | void | |
509c9d60 | 86 | pedwarn_c90 (location_t location, int opt, const char *gmsgid, ...) |
85617eba HPN |
87 | { |
88 | diagnostic_info diagnostic; | |
89 | va_list ap; | |
90 | ||
4b794eaf | 91 | va_start (ap, gmsgid); |
177cce46 MP |
92 | /* Warnings such as -Wvla are the most specific ones. */ |
93 | if (opt != OPT_Wpedantic) | |
f3bede71 | 94 | { |
177cce46 MP |
95 | int opt_var = *(int *) option_flag_var (opt, &global_options); |
96 | if (opt_var == 0) | |
97 | goto out; | |
98 | else if (opt_var > 0) | |
99 | { | |
100 | diagnostic_set_info (&diagnostic, gmsgid, &ap, location, | |
101 | (pedantic && !flag_isoc99) | |
102 | ? DK_PEDWARN : DK_WARNING); | |
103 | diagnostic.option_index = opt; | |
104 | report_diagnostic (&diagnostic); | |
105 | goto out; | |
106 | } | |
f3bede71 | 107 | } |
177cce46 MP |
108 | /* Maybe we want to issue the C90/C99 compat warning, which is more |
109 | specific than -pedantic. */ | |
110 | if (warn_c90_c99_compat > 0) | |
f3bede71 | 111 | { |
177cce46 MP |
112 | diagnostic_set_info (&diagnostic, gmsgid, &ap, location, |
113 | (pedantic && !flag_isoc99) | |
114 | ? DK_PEDWARN : DK_WARNING); | |
115 | diagnostic.option_index = OPT_Wc90_c99_compat; | |
116 | report_diagnostic (&diagnostic); | |
f3bede71 | 117 | } |
177cce46 MP |
118 | /* -Wno-c90-c99-compat suppresses the pedwarns. */ |
119 | else if (warn_c90_c99_compat == 0) | |
120 | ; | |
121 | /* For -pedantic outside C99, issue a pedwarn. */ | |
122 | else if (pedantic && !flag_isoc99) | |
f3bede71 | 123 | { |
177cce46 MP |
124 | diagnostic_set_info (&diagnostic, gmsgid, &ap, location, DK_PEDWARN); |
125 | diagnostic.option_index = opt; | |
f3bede71 MP |
126 | report_diagnostic (&diagnostic); |
127 | } | |
177cce46 | 128 | out: |
85617eba HPN |
129 | va_end (ap); |
130 | } |