1 /* Id */
2 /* $NetBSD: wflag.c,v 1.1.1.1 2016/02/09 20:29:13 plunky Exp $ */
3
4 /*-
5 * Copyright (c) 2014 Iain Hibbert.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
8 * of this software and associated documentation files (the "Software"), to deal
9 * in the Software without restriction, including without limitation the rights
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11 * copies of the Software, and to permit persons to whom the Software is
12 * furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
23 * THE SOFTWARE.
24 */
25
26 #include <string.h>
27
28 #include "driver.h"
29
30 static struct {
31 const char * name;
32 unsigned int flag;
33 } Warns[] = {
34 { "error", W_CCOM | W_CXXCOM },
35 { "truncate", W_CCOM | W_CXXCOM },
36 { "strict-prototypes", W_CCOM | W_CXXCOM },
37 { "missing-prototypes", W_CCOM | W_CXXCOM },
38 { "implicit-int", W_CCOM | W_CXXCOM | W_ALL },
39 { "implicit-function-declaration", W_CCOM | W_CXXCOM | W_ALL },
40 { "shadow", W_CCOM | W_CXXCOM },
41 { "pointer-sign", W_CCOM | W_CXXCOM | W_ALL },
42 { "sign-compare", W_CCOM | W_CXXCOM },
43 { "system-headers", W_CPP },
44 { "unknown-pragmas", W_CCOM | W_CXXCOM | W_ALL },
45 { "unreachable-code", W_CCOM | W_CXXCOM },
46 };
47
48 static int
Wset(unsigned int match)49 Wset(unsigned int match)
50 {
51 size_t i;
52
53 for (i = 0; i < ARRAYLEN(Warns); i++) {
54 if ((Warns[i].flag & match) == match)
55 Warns[i].flag |= W_SET;
56 }
57
58 return 1;
59 }
60
61 int
Wflag(const char * str)62 Wflag(const char *str)
63 {
64 size_t i;
65 int set, err;
66
67 if (strcmp("all", str) == 0)
68 return Wset(W_ALL);
69 if (strcmp("extra", str) == 0)
70 return Wset(W_EXTRA);
71 if (strcmp("W", str) == 0)
72 return Wset(0);
73
74 set = 1;
75 err = 0;
76 if (strcmp("error", str) != 0) {
77 if (strncmp("no-", str, 3) == 0) {
78 str += 3;
79 set = 0;
80 }
81
82 if (strncmp("error=", str, 6) == 0) {
83 str += 6;
84 err = 1;
85 }
86 }
87
88 for (i = 0; i < ARRAYLEN(Warns); i++) {
89 if (strcmp(Warns[i].name, str) == 0) {
90 if (set)
91 Warns[i].flag |= W_SET;
92 else
93 Warns[i].flag &= ~W_SET;
94
95 if (err)
96 Warns[i].flag |= W_ERR;
97 else
98 Warns[i].flag &= ~W_ERR;
99
100 return 1;
101 }
102 }
103
104 return 0;
105 }
106
107 void
Wflag_add(list_t * l,unsigned int match)108 Wflag_add(list_t *l, unsigned int match)
109 {
110 size_t i;
111
112 for (i = 0; i < ARRAYLEN(Warns); i++) {
113 if ((Warns[i].set || Warns[i].err)
114 && (match & Warns[i].flag)) {
115 list_add(l, "-W%s%s%s",
116 (Warns[i].flag & W_SET ? "" : "no-"),
117 (Warns[i].flag & W_ERR ? "error=" : ""),
118 Warns[i].name);
119 }
120 }
121 }
122