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comparison gcc/config/i386/msformat-c.c @ 0:a06113de4d67

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author kent <kent@cr.ie.u-ryukyu.ac.jp>
date Fri, 17 Jul 2009 14:47:48 +0900
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-1:000000000000 0:a06113de4d67
1 /* Check calls to formatted I/O functions (-Wformat).
2 Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
3 2001, 2002, 2003, 2004, 2005, 2007, 2008 Free Software Foundation, Inc.
4
5 This file is part of GCC.
6
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
9 Software Foundation; either version 3, or (at your option) any later
10 version.
11
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.
16
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING3. If not see
19 <http://www.gnu.org/licenses/>. */
20
21 #include "config.h"
22 #include "system.h"
23 #include "coretypes.h"
24 #include "tm.h"
25 #include "tree.h"
26 #include "flags.h"
27 #include "c-common.h"
28 #include "toplev.h"
29 #include "intl.h"
30 #include "diagnostic.h"
31 #include "langhooks.h"
32 #include "c-format.h"
33 #include "alloc-pool.h"
34
35 /* Mingw specific format attributes ms_printf, ms_scanf, and ms_strftime. */
36
37 static format_length_info ms_printf_length_specs[] =
38 {
39 { "h", FMT_LEN_h, STD_C89, NULL, 0, 0 },
40 { "l", FMT_LEN_l, STD_C89, NULL, 0, 0 },
41 { "I32", FMT_LEN_l, STD_EXT, NULL, 0, 0 },
42 { "I64", FMT_LEN_ll, STD_EXT, NULL, 0, 0 },
43 { "I", FMT_LEN_L, STD_EXT, NULL, 0, 0 },
44 { NULL, 0, 0, NULL, 0, 0 }
45 };
46
47 static const format_flag_spec ms_printf_flag_specs[] =
48 {
49 { ' ', 0, 0, N_("' ' flag"), N_("the ' ' printf flag"), STD_C89 },
50 { '+', 0, 0, N_("'+' flag"), N_("the '+' printf flag"), STD_C89 },
51 { '#', 0, 0, N_("'#' flag"), N_("the '#' printf flag"), STD_C89 },
52 { '0', 0, 0, N_("'0' flag"), N_("the '0' printf flag"), STD_C89 },
53 { '-', 0, 0, N_("'-' flag"), N_("the '-' printf flag"), STD_C89 },
54 { '\'', 0, 0, N_("''' flag"), N_("the ''' printf flag"), STD_EXT },
55 { 'w', 0, 0, N_("field width"), N_("field width in printf format"), STD_C89 },
56 { 'p', 0, 0, N_("precision"), N_("precision in printf format"), STD_C89 },
57 { 'L', 0, 0, N_("length modifier"), N_("length modifier in printf format"), STD_C89 },
58 { 0, 0, 0, NULL, NULL, 0 }
59 };
60
61 static const format_flag_pair ms_printf_flag_pairs[] =
62 {
63 { ' ', '+', 1, 0 },
64 { '0', '-', 1, 0 }, { '0', 'p', 1, 'i' },
65 { 0, 0, 0, 0 }
66 };
67
68 static const format_flag_spec ms_scanf_flag_specs[] =
69 {
70 { '*', 0, 0, N_("assignment suppression"), N_("the assignment suppression scanf feature"), STD_C89 },
71 { 'a', 0, 0, N_("'a' flag"), N_("the 'a' scanf flag"), STD_EXT },
72 { 'w', 0, 0, N_("field width"), N_("field width in scanf format"), STD_C89 },
73 { 'L', 0, 0, N_("length modifier"), N_("length modifier in scanf format"), STD_C89 },
74 { '\'', 0, 0, N_("''' flag"), N_("the ''' scanf flag"), STD_EXT },
75 { 0, 0, 0, NULL, NULL, 0 }
76 };
77
78 static const format_flag_pair ms_scanf_flag_pairs[] =
79 {
80 { '*', 'L', 0, 0 },
81 { 0, 0, 0, 0 }
82 };
83
84 static const format_flag_spec ms_strftime_flag_specs[] =
85 {
86 { '#', 0, 0, N_("'#' flag"), N_("the '#' strftime flag"), STD_EXT },
87 { 0, 0, 0, NULL, NULL, 0 }
88 };
89
90 static const format_flag_pair ms_strftime_flag_pairs[] =
91 {
92 { 0, 0, 0, 0 }
93 };
94
95 static const format_char_info ms_print_char_table[] =
96 {
97 /* C89 conversion specifiers. */
98 { "di", 0, STD_C89, { T89_I, BADLEN, T89_S, T89_L, T9L_LL, T99_SST, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "-wp0 +'", "i", NULL },
99 { "oxX", 0, STD_C89, { T89_UI, BADLEN, T89_US, T89_UL, T9L_ULL, T99_ST, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "-wp0#", "i", NULL },
100 { "u", 0, STD_C89, { T89_UI, BADLEN, T89_US, T89_UL, T9L_ULL, T99_ST, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "-wp0'", "i", NULL },
101 { "fgG", 0, STD_C89, { T89_D, BADLEN, BADLEN, T99_D, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "-wp0 +#'", "", NULL },
102 { "eE", 0, STD_C89, { T89_D, BADLEN, BADLEN, T99_D, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "-wp0 +#", "", NULL },
103 { "c", 0, STD_C89, { T89_I, BADLEN, T89_S, T94_WI, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "-w", "", NULL },
104 { "s", 1, STD_C89, { T89_C, BADLEN, T89_S, T94_W, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "-wp", "cR", NULL },
105 { "p", 1, STD_C89, { T89_V, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "-w", "c", NULL },
106 { "n", 1, STD_C89, { T89_I, BADLEN, T89_S, T89_L, T9L_LL, BADLEN, BADLEN, BADLEN, T99_IM, BADLEN, BADLEN, BADLEN }, "", "W", NULL },
107 /* X/Open conversion specifiers. */
108 { "C", 0, STD_EXT, { TEX_WI, BADLEN, T89_S, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "-w", "", NULL },
109 { "S", 1, STD_EXT, { TEX_W, BADLEN, T89_S, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "-wp", "R", NULL },
110 { NULL, 0, 0, NOLENGTHS, NULL, NULL, NULL }
111 };
112
113 static const format_char_info ms_scan_char_table[] =
114 {
115 /* C89 conversion specifiers. */
116 { "di", 1, STD_C89, { T89_I, BADLEN, T89_S, T89_L, T9L_LL, T99_SST, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "*w'", "W", NULL },
117 { "u", 1, STD_C89, { T89_UI, BADLEN, T89_US, T89_UL, T9L_ULL, T99_ST, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "*w'", "W", NULL },
118 { "oxX", 1, STD_C89, { T89_UI, BADLEN, T89_US, T89_UL, T9L_ULL, T99_ST, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "*w", "W", NULL },
119 { "efgEG", 1, STD_C89, { T89_F, BADLEN, BADLEN, T89_D, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "*w'", "W", NULL },
120 { "c", 1, STD_C89, { T89_C, BADLEN, T89_S, T94_W, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "*w", "cW", NULL },
121 { "s", 1, STD_C89, { T89_C, BADLEN, T89_S, T94_W, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "*aw", "cW", NULL },
122 { "[", 1, STD_C89, { T89_C, BADLEN, BADLEN, T94_W, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "*aw", "cW[", NULL },
123 { "p", 2, STD_C89, { T89_V, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "*w", "W", NULL },
124 { "n", 1, STD_C89, { T89_I, BADLEN, T89_S, T89_L, T9L_LL, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "", "W", NULL },
125 /* X/Open conversion specifiers. */
126 { "C", 1, STD_EXT, { TEX_W, BADLEN, T89_S, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "*w", "W", NULL },
127 { "S", 1, STD_EXT, { TEX_W, BADLEN, T89_S, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "*aw", "W", NULL },
128 { NULL, 0, 0, NOLENGTHS, NULL, NULL, NULL }
129 };
130
131 static const format_char_info ms_time_char_table[] =
132 {
133 /* C89 conversion specifiers. */
134 { "ABZab", 0, STD_C89, NOLENGTHS, "#", "", NULL },
135 { "cx", 0, STD_C89, NOLENGTHS, "#", "3", NULL },
136 { "HIMSUWdmw", 0, STD_C89, NOLENGTHS, "#", "", NULL },
137 { "j", 0, STD_C89, NOLENGTHS, "#", "", NULL },
138 { "p", 0, STD_C89, NOLENGTHS, "#", "", NULL },
139 { "X", 0, STD_C89, NOLENGTHS, "#", "", NULL },
140 { "y", 0, STD_C89, NOLENGTHS, "#", "4", NULL },
141 { "Y", 0, STD_C89, NOLENGTHS, "#", "", NULL },
142 { "%", 0, STD_C89, NOLENGTHS, "", "", NULL },
143 /* C99 conversion specifiers. */
144 { "z", 0, STD_C99, NOLENGTHS, "#", "", NULL },
145 { NULL, 0, 0, NOLENGTHS, NULL, NULL, NULL }
146 };
147
148 const format_kind_info mingw_format_attributes[3] =
149 {
150 { "ms_printf", ms_printf_length_specs, ms_print_char_table, " +#0-'", NULL,
151 ms_printf_flag_specs, ms_printf_flag_pairs,
152 FMT_FLAG_ARG_CONVERT|FMT_FLAG_DOLLAR_MULTIPLE|FMT_FLAG_USE_DOLLAR|FMT_FLAG_EMPTY_PREC_OK,
153 'w', 0, 'p', 0, 'L', 0,
154 &integer_type_node, &integer_type_node
155 },
156 { "ms_scanf", ms_printf_length_specs, ms_scan_char_table, "*'", NULL,
157 ms_scanf_flag_specs, ms_scanf_flag_pairs,
158 FMT_FLAG_ARG_CONVERT|FMT_FLAG_SCANF_A_KLUDGE|FMT_FLAG_USE_DOLLAR|FMT_FLAG_ZERO_WIDTH_BAD|FMT_FLAG_DOLLAR_GAP_POINTER_OK,
159 'w', 0, 0, '*', 'L', 0,
160 NULL, NULL
161 },
162 { "ms_strftime", NULL, ms_time_char_table, "", "#",
163 ms_strftime_flag_specs, ms_strftime_flag_pairs,
164 FMT_FLAG_FANCY_PERCENT_OK, 0, 0, 0, 0, 0, 0,
165 NULL, NULL
166 }
167 };
168
169 /* Default overrides for printf, scanf and strftime. */
170 const target_ovr_attr mingw_format_attribute_overrides[4] =
171 {
172 { "ms_printf", "printf" },
173 { "ms_scanf", "scanf" },
174 { "ms_strftime", "strftime" }
175 };
176
177 /* Setup for option Wpedantic-ms-format. */
178
179 #ifdef TARGET_OVERRIDES_FORMAT_INIT
180
181 /* Make sure TARGET_OVERRIDES_FORMAT_INIT is prototyped. */
182 extern void TARGET_OVERRIDES_FORMAT_INIT (void);
183
184 /* Helper. */
185 #define C89_OR_EXT (warn_pedantic_ms_format ? STD_EXT : STD_C89)
186
187 void
188 TARGET_OVERRIDES_FORMAT_INIT (void)
189 {
190 ms_printf_length_specs[2].std = C89_OR_EXT; /* I32 */
191 ms_printf_length_specs[3].std = C89_OR_EXT; /* I64 */
192 ms_printf_length_specs[4].std = C89_OR_EXT; /* I */
193 }
194
195 #undef C89_OR_EXT
196
197 #endif