1/* Check calls to formatted I/O functions (-Wformat). 2 Copyright (C) 1992-2022 Free Software Foundation, Inc. 3 4This file is part of GCC. 5 6GCC is free software; you can redistribute it and/or modify it under 7the terms of the GNU General Public License as published by the Free 8Software Foundation; either version 3, or (at your option) any later 9version. 10 11GCC is distributed in the hope that it will be useful, but WITHOUT ANY 12WARRANTY; without even the implied warranty of MERCHANTABILITY or 13FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14for more details. 15 16You should have received a copy of the GNU General Public License 17along with GCC; see the file COPYING3. If not see 18<http://www.gnu.org/licenses/>. */ 19 20#define IN_TARGET_CODE 1 21 22#include "config.h" 23#include "system.h" 24#include "coretypes.h" 25#include "tm.h" 26#include "c-family/c-common.h" 27#include "intl.h" 28#include "c-family/c-format.h" 29 30/* Mingw specific format attributes ms_printf, ms_scanf, and ms_strftime. */ 31 32static format_length_info ms_printf_length_specs[] = 33{ 34 { "h", FMT_LEN_h, STD_C89, NULL, FMT_LEN_none, STD_C89, 0 }, 35 { "l", FMT_LEN_l, STD_C89, "ll", FMT_LEN_ll, STD_C89, 0 }, 36 { "L", FMT_LEN_L, STD_C89, NULL, FMT_LEN_none, STD_C89, 1 }, 37 { "I32", FMT_LEN_l, STD_EXT, NULL, FMT_LEN_none, STD_C89, 1 }, 38 { "I64", FMT_LEN_ll, STD_EXT, NULL, FMT_LEN_none, STD_C89, 1 }, 39 { "I", FMT_LEN_z, STD_EXT, NULL, FMT_LEN_none, STD_C89, 1 }, 40 { NULL, FMT_LEN_none, STD_C89, NULL, FMT_LEN_none, STD_C89, 0 } 41}; 42 43static const format_flag_spec ms_printf_flag_specs[] = 44{ 45 { ' ', 0, 0, 0, N_("' ' flag"), N_("the ' ' printf flag"), STD_C89 }, 46 { '+', 0, 0, 0, N_("'+' flag"), N_("the '+' printf flag"), STD_C89 }, 47 { '#', 0, 0, 0, N_("'#' flag"), N_("the '#' printf flag"), STD_C89 }, 48 { '0', 0, 0, 0, N_("'0' flag"), N_("the '0' printf flag"), STD_C89 }, 49 { '-', 0, 0, 0, N_("'-' flag"), N_("the '-' printf flag"), STD_C89 }, 50 { '\'', 0, 0, 0, N_("''' flag"), N_("the ''' printf flag"), STD_EXT }, 51 { 'w', 0, 0, 0, N_("field width"), N_("field width in printf format"), STD_C89 }, 52 { 'p', 0, 0, 0, N_("precision"), N_("precision in printf format"), STD_C89 }, 53 { 'L', 0, 0, 0, N_("length modifier"), N_("length modifier in printf format"), STD_C89 }, 54 { 0, 0, 0, 0, NULL, NULL, STD_C89 } 55}; 56 57static const format_flag_pair ms_printf_flag_pairs[] = 58{ 59 { ' ', '+', 1, 0 }, 60 { '0', '-', 1, 0 }, { '0', 'p', 1, 'i' }, 61 { 0, 0, 0, 0 } 62}; 63 64static const format_flag_spec ms_scanf_flag_specs[] = 65{ 66 { '*', 0, 0, 0, N_("assignment suppression"), N_("the assignment suppression scanf feature"), STD_C89 }, 67 { 'a', 0, 0, 0, N_("'a' flag"), N_("the 'a' scanf flag"), STD_EXT }, 68 { 'w', 0, 0, 0, N_("field width"), N_("field width in scanf format"), STD_C89 }, 69 { 'L', 0, 0, 0, N_("length modifier"), N_("length modifier in scanf format"), STD_C89 }, 70 { '\'', 0, 0, 0, N_("''' flag"), N_("the ''' scanf flag"), STD_EXT }, 71 { 0, 0, 0, 0, NULL, NULL, STD_C89 } 72}; 73 74static const format_flag_pair ms_scanf_flag_pairs[] = 75{ 76 { '*', 'L', 0, 0 }, 77 { 0, 0, 0, 0 } 78}; 79 80static const format_flag_spec ms_strftime_flag_specs[] = 81{ 82 { '#', 0, 0, 0, N_("'#' flag"), N_("the '#' strftime flag"), STD_EXT }, 83 { 0, 0, 0, 0, NULL, NULL, STD_C89 } 84}; 85 86static const format_flag_pair ms_strftime_flag_pairs[] = 87{ 88 { 0, 0, 0, 0 } 89}; 90 91static const format_char_info ms_print_char_table[] = 92{ 93 /* C89 conversion specifiers. */ 94 { "di", 0, STD_C89, { T89_I, BADLEN, T89_S, T89_L, T9L_LL, BADLEN, T99_SST, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "-wp0 +'", "i", NULL }, 95 { "oxX", 0, STD_C89, { T89_UI, BADLEN, T89_US, T89_UL, T9L_ULL, BADLEN, T99_ST, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "-wp0#", "i", NULL }, 96 { "u", 0, STD_C89, { T89_UI, BADLEN, T89_US, T89_UL, T9L_ULL, BADLEN, T99_ST, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "-wp0'", "i", NULL }, 97 { "fgG", 0, STD_C89, { T89_D, BADLEN, BADLEN, T99_D, BADLEN, T89_D, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "-wp0 +#'", "", NULL }, 98 { "eE", 0, STD_C89, { T89_D, BADLEN, BADLEN, T99_D, BADLEN, T89_D, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "-wp0 +#", "", NULL }, 99 { "c", 0, STD_C89, { T89_I, BADLEN, T89_S, T94_WI, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "-w", "", NULL }, 100 { "s", 1, STD_C89, { T89_C, BADLEN, T89_S, T94_W, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "-wp", "cR", NULL }, 101 { "p", 1, STD_C89, { T89_V, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "-w", "c", NULL }, 102 { "n", 1, STD_C89, { T89_I, BADLEN, T89_S, T89_L, T9L_LL, BADLEN, BADLEN, BADLEN, T99_IM, BADLEN, BADLEN, BADLEN }, "", "W", NULL }, 103 /* C99 conversion specifiers. */ 104 { "aA", 0, STD_C99, { T99_D, BADLEN, BADLEN, T99_D, BADLEN, T99_D, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "-wp0 +#", "", NULL }, 105 /* X/Open conversion specifiers. */ 106 { "C", 0, STD_EXT, { TEX_WI, BADLEN, T89_S, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "-w", "", NULL }, 107 { "S", 1, STD_EXT, { TEX_W, BADLEN, T89_S, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "-wp", "R", NULL }, 108 { NULL, 0, STD_C89, NOLENGTHS, NULL, NULL, NULL } 109}; 110 111static const format_char_info ms_scan_char_table[] = 112{ 113 /* C89 conversion specifiers. */ 114 { "di", 1, STD_C89, { T89_I, BADLEN, T89_S, T89_L, T9L_LL, BADLEN, T99_SST, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "*w'", "W", NULL }, 115 { "u", 1, STD_C89, { T89_UI, BADLEN, T89_US, T89_UL, T9L_ULL, BADLEN, T99_ST, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "*w'", "W", NULL }, 116 { "oxX", 1, STD_C89, { T89_UI, BADLEN, T89_US, T89_UL, T9L_ULL, BADLEN, T99_ST, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "*w", "W", NULL }, 117 { "efgEG", 1, STD_C89, { T89_F, BADLEN, BADLEN, T89_D, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "*w'", "W", NULL }, 118 { "c", 1, STD_C89, { T89_C, BADLEN, T89_S, T94_W, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "*w", "cW", NULL }, 119 { "s", 1, STD_C89, { T89_C, BADLEN, T89_S, T94_W, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "*aw", "cW", NULL }, 120 { "[", 1, STD_C89, { T89_C, BADLEN, BADLEN, T94_W, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "*aw", "cW[", NULL }, 121 { "p", 2, STD_C89, { T89_V, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "*w", "W", NULL }, 122 { "n", 1, STD_C89, { T89_I, BADLEN, T89_S, T89_L, T9L_LL, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "", "W", NULL }, 123 /* X/Open conversion specifiers. */ 124 { "C", 1, STD_EXT, { TEX_W, BADLEN, T89_S, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "*w", "W", NULL }, 125 { "S", 1, STD_EXT, { TEX_W, BADLEN, T89_S, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "*aw", "W", NULL }, 126 { NULL, 0, STD_C89, NOLENGTHS, NULL, NULL, NULL } 127}; 128 129static const format_char_info ms_time_char_table[] = 130{ 131 /* C89 conversion specifiers. */ 132 { "ABZab", 0, STD_C89, NOLENGTHS, "#", "", NULL }, 133 { "cx", 0, STD_C89, NOLENGTHS, "#", "3", NULL }, 134 { "HIMSUWdmw", 0, STD_C89, NOLENGTHS, "#", "", NULL }, 135 { "j", 0, STD_C89, NOLENGTHS, "#", "", NULL }, 136 { "p", 0, STD_C89, NOLENGTHS, "#", "", NULL }, 137 { "X", 0, STD_C89, NOLENGTHS, "#", "", NULL }, 138 { "y", 0, STD_C89, NOLENGTHS, "#", "4", NULL }, 139 { "Y", 0, STD_C89, NOLENGTHS, "#", "", NULL }, 140 { "%", 0, STD_C89, NOLENGTHS, "", "", NULL }, 141 /* C99 conversion specifiers. */ 142 { "z", 0, STD_C99, NOLENGTHS, "#", "", NULL }, 143 { NULL, 0, STD_C89, NOLENGTHS, NULL, NULL, NULL } 144}; 145 146EXPORTED_CONST format_kind_info mingw_format_attributes[3] = 147{ 148 { "ms_printf", ms_printf_length_specs, ms_print_char_table, " +#0-'", NULL, 149 ms_printf_flag_specs, ms_printf_flag_pairs, 150 FMT_FLAG_ARG_CONVERT|FMT_FLAG_DOLLAR_MULTIPLE|FMT_FLAG_USE_DOLLAR|FMT_FLAG_EMPTY_PREC_OK, 151 'w', 0, 'p', 0, 'L', 0, 152 &integer_type_node, &integer_type_node 153 }, 154 { "ms_scanf", ms_printf_length_specs, ms_scan_char_table, "*'", NULL, 155 ms_scanf_flag_specs, ms_scanf_flag_pairs, 156 FMT_FLAG_ARG_CONVERT|FMT_FLAG_SCANF_A_KLUDGE|FMT_FLAG_USE_DOLLAR|FMT_FLAG_ZERO_WIDTH_BAD|FMT_FLAG_DOLLAR_GAP_POINTER_OK, 157 'w', 0, 0, '*', 'L', 0, 158 NULL, NULL 159 }, 160 { "ms_strftime", NULL, ms_time_char_table, "", "#", 161 ms_strftime_flag_specs, ms_strftime_flag_pairs, 162 FMT_FLAG_FANCY_PERCENT_OK, 0, 0, 0, 0, 0, 0, 163 NULL, NULL 164 } 165}; 166 167/* Default overrides for printf, scanf and strftime. */ 168EXPORTED_CONST target_ovr_attr mingw_format_attribute_overrides[4] = 169{ 170 { "ms_printf", "printf" }, 171 { "ms_scanf", "scanf" }, 172 { "ms_strftime", "strftime" } 173}; 174 175/* Setup for option Wpedantic-ms-format. */ 176 177#ifdef TARGET_OVERRIDES_FORMAT_INIT 178 179/* Make sure TARGET_OVERRIDES_FORMAT_INIT is prototyped. */ 180extern void TARGET_OVERRIDES_FORMAT_INIT (void); 181 182/* Helper. */ 183#define C89_OR_EXT (warn_pedantic_ms_format ? STD_EXT : STD_C89) 184 185void 186TARGET_OVERRIDES_FORMAT_INIT (void) 187{ 188 ms_printf_length_specs[3].std = C89_OR_EXT; /* I32 */ 189 ms_printf_length_specs[4].std = C89_OR_EXT; /* I64 */ 190 ms_printf_length_specs[5].std = C89_OR_EXT; /* I */ 191} 192 193#undef C89_OR_EXT 194 195#endif 196