1/* Check calls to formatted I/O functions (-Wformat). 2 Copyright (C) 1992-2020 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, NULL, FMT_LEN_none, STD_C89, 0 }, 36 { "I32", FMT_LEN_l, STD_EXT, NULL, FMT_LEN_none, STD_C89, 1 }, 37 { "I64", FMT_LEN_ll, STD_EXT, NULL, FMT_LEN_none, STD_C89, 1 }, 38 { "I", FMT_LEN_L, STD_EXT, NULL, FMT_LEN_none, STD_C89, 1 }, 39 { NULL, FMT_LEN_none, STD_C89, NULL, FMT_LEN_none, STD_C89, 0 } 40}; 41 42static const format_flag_spec ms_printf_flag_specs[] = 43{ 44 { ' ', 0, 0, 0, N_("' ' flag"), N_("the ' ' printf flag"), STD_C89 }, 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, 0, N_("'0' flag"), N_("the '0' printf flag"), STD_C89 }, 48 { '-', 0, 0, 0, N_("'-' flag"), N_("the '-' printf flag"), STD_C89 }, 49 { '\'', 0, 0, 0, N_("''' flag"), N_("the ''' printf flag"), STD_EXT }, 50 { 'w', 0, 0, 0, N_("field width"), N_("field width in printf format"), STD_C89 }, 51 { 'p', 0, 0, 0, N_("precision"), N_("precision in printf format"), STD_C89 }, 52 { 'L', 0, 0, 0, N_("length modifier"), N_("length modifier in printf format"), STD_C89 }, 53 { 0, 0, 0, 0, NULL, NULL, STD_C89 } 54}; 55 56static const format_flag_pair ms_printf_flag_pairs[] = 57{ 58 { ' ', '+', 1, 0 }, 59 { '0', '-', 1, 0 }, { '0', 'p', 1, 'i' }, 60 { 0, 0, 0, 0 } 61}; 62 63static const format_flag_spec ms_scanf_flag_specs[] = 64{ 65 { '*', 0, 0, 0, N_("assignment suppression"), N_("the assignment suppression scanf feature"), STD_C89 }, 66 { 'a', 0, 0, 0, N_("'a' flag"), N_("the 'a' scanf flag"), STD_EXT }, 67 { 'w', 0, 0, 0, N_("field width"), N_("field width in scanf format"), STD_C89 }, 68 { 'L', 0, 0, 0, N_("length modifier"), N_("length modifier in scanf format"), STD_C89 }, 69 { '\'', 0, 0, 0, N_("''' flag"), N_("the ''' scanf flag"), STD_EXT }, 70 { 0, 0, 0, 0, NULL, NULL, STD_C89 } 71}; 72 73static const format_flag_pair ms_scanf_flag_pairs[] = 74{ 75 { '*', 'L', 0, 0 }, 76 { 0, 0, 0, 0 } 77}; 78 79static const format_flag_spec ms_strftime_flag_specs[] = 80{ 81 { '#', 0, 0, 0, N_("'#' flag"), N_("the '#' strftime flag"), STD_EXT }, 82 { 0, 0, 0, 0, NULL, NULL, STD_C89 } 83}; 84 85static const format_flag_pair ms_strftime_flag_pairs[] = 86{ 87 { 0, 0, 0, 0 } 88}; 89 90static const format_char_info ms_print_char_table[] = 91{ 92 /* C89 conversion specifiers. */ 93 { "di", 0, STD_C89, { T89_I, BADLEN, T89_S, T89_L, T9L_LL, T99_SST, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "-wp0 +'", "i", NULL }, 94 { "oxX", 0, STD_C89, { T89_UI, BADLEN, T89_US, T89_UL, T9L_ULL, T99_ST, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "-wp0#", "i", NULL }, 95 { "u", 0, STD_C89, { T89_UI, BADLEN, T89_US, T89_UL, T9L_ULL, T99_ST, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "-wp0'", "i", NULL }, 96 { "fgG", 0, STD_C89, { T89_D, BADLEN, BADLEN, T99_D, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "-wp0 +#'", "", NULL }, 97 { "eE", 0, STD_C89, { T89_D, BADLEN, BADLEN, T99_D, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "-wp0 +#", "", NULL }, 98 { "c", 0, STD_C89, { T89_I, BADLEN, T89_S, T94_WI, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "-w", "", NULL }, 99 { "s", 1, STD_C89, { T89_C, BADLEN, T89_S, T94_W, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "-wp", "cR", NULL }, 100 { "p", 1, STD_C89, { T89_V, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "-w", "c", NULL }, 101 { "n", 1, STD_C89, { T89_I, BADLEN, T89_S, T89_L, T9L_LL, BADLEN, BADLEN, BADLEN, T99_IM, BADLEN, BADLEN, BADLEN }, "", "W", NULL }, 102 /* X/Open conversion specifiers. */ 103 { "C", 0, STD_EXT, { TEX_WI, BADLEN, T89_S, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "-w", "", NULL }, 104 { "S", 1, STD_EXT, { TEX_W, BADLEN, T89_S, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "-wp", "R", NULL }, 105 { NULL, 0, STD_C89, NOLENGTHS, NULL, NULL, NULL } 106}; 107 108static const format_char_info ms_scan_char_table[] = 109{ 110 /* C89 conversion specifiers. */ 111 { "di", 1, STD_C89, { T89_I, BADLEN, T89_S, T89_L, T9L_LL, T99_SST, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "*w'", "W", NULL }, 112 { "u", 1, STD_C89, { T89_UI, BADLEN, T89_US, T89_UL, T9L_ULL, T99_ST, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "*w'", "W", NULL }, 113 { "oxX", 1, STD_C89, { T89_UI, BADLEN, T89_US, T89_UL, T9L_ULL, T99_ST, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "*w", "W", NULL }, 114 { "efgEG", 1, STD_C89, { T89_F, BADLEN, BADLEN, T89_D, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "*w'", "W", NULL }, 115 { "c", 1, STD_C89, { T89_C, BADLEN, T89_S, T94_W, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "*w", "cW", NULL }, 116 { "s", 1, STD_C89, { T89_C, BADLEN, T89_S, T94_W, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "*aw", "cW", NULL }, 117 { "[", 1, STD_C89, { T89_C, BADLEN, BADLEN, T94_W, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "*aw", "cW[", NULL }, 118 { "p", 2, STD_C89, { T89_V, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "*w", "W", NULL }, 119 { "n", 1, STD_C89, { T89_I, BADLEN, T89_S, T89_L, T9L_LL, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "", "W", NULL }, 120 /* X/Open conversion specifiers. */ 121 { "C", 1, STD_EXT, { TEX_W, BADLEN, T89_S, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "*w", "W", NULL }, 122 { "S", 1, STD_EXT, { TEX_W, BADLEN, T89_S, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "*aw", "W", NULL }, 123 { NULL, 0, STD_C89, NOLENGTHS, NULL, NULL, NULL } 124}; 125 126static const format_char_info ms_time_char_table[] = 127{ 128 /* C89 conversion specifiers. */ 129 { "ABZab", 0, STD_C89, NOLENGTHS, "#", "", NULL }, 130 { "cx", 0, STD_C89, NOLENGTHS, "#", "3", NULL }, 131 { "HIMSUWdmw", 0, STD_C89, NOLENGTHS, "#", "", NULL }, 132 { "j", 0, STD_C89, NOLENGTHS, "#", "", NULL }, 133 { "p", 0, STD_C89, NOLENGTHS, "#", "", NULL }, 134 { "X", 0, STD_C89, NOLENGTHS, "#", "", NULL }, 135 { "y", 0, STD_C89, NOLENGTHS, "#", "4", NULL }, 136 { "Y", 0, STD_C89, NOLENGTHS, "#", "", NULL }, 137 { "%", 0, STD_C89, NOLENGTHS, "", "", NULL }, 138 /* C99 conversion specifiers. */ 139 { "z", 0, STD_C99, NOLENGTHS, "#", "", NULL }, 140 { NULL, 0, STD_C89, NOLENGTHS, NULL, NULL, NULL } 141}; 142 143EXPORTED_CONST format_kind_info mingw_format_attributes[3] = 144{ 145 { "ms_printf", ms_printf_length_specs, ms_print_char_table, " +#0-'", NULL, 146 ms_printf_flag_specs, ms_printf_flag_pairs, 147 FMT_FLAG_ARG_CONVERT|FMT_FLAG_DOLLAR_MULTIPLE|FMT_FLAG_USE_DOLLAR|FMT_FLAG_EMPTY_PREC_OK, 148 'w', 0, 'p', 0, 'L', 0, 149 &integer_type_node, &integer_type_node 150 }, 151 { "ms_scanf", ms_printf_length_specs, ms_scan_char_table, "*'", NULL, 152 ms_scanf_flag_specs, ms_scanf_flag_pairs, 153 FMT_FLAG_ARG_CONVERT|FMT_FLAG_SCANF_A_KLUDGE|FMT_FLAG_USE_DOLLAR|FMT_FLAG_ZERO_WIDTH_BAD|FMT_FLAG_DOLLAR_GAP_POINTER_OK, 154 'w', 0, 0, '*', 'L', 0, 155 NULL, NULL 156 }, 157 { "ms_strftime", NULL, ms_time_char_table, "", "#", 158 ms_strftime_flag_specs, ms_strftime_flag_pairs, 159 FMT_FLAG_FANCY_PERCENT_OK, 0, 0, 0, 0, 0, 0, 160 NULL, NULL 161 } 162}; 163 164/* Default overrides for printf, scanf and strftime. */ 165EXPORTED_CONST target_ovr_attr mingw_format_attribute_overrides[4] = 166{ 167 { "ms_printf", "printf" }, 168 { "ms_scanf", "scanf" }, 169 { "ms_strftime", "strftime" } 170}; 171 172/* Setup for option Wpedantic-ms-format. */ 173 174#ifdef TARGET_OVERRIDES_FORMAT_INIT 175 176/* Make sure TARGET_OVERRIDES_FORMAT_INIT is prototyped. */ 177extern void TARGET_OVERRIDES_FORMAT_INIT (void); 178 179/* Helper. */ 180#define C89_OR_EXT (warn_pedantic_ms_format ? STD_EXT : STD_C89) 181 182void 183TARGET_OVERRIDES_FORMAT_INIT (void) 184{ 185 ms_printf_length_specs[2].std = C89_OR_EXT; /* I32 */ 186 ms_printf_length_specs[3].std = C89_OR_EXT; /* I64 */ 187 ms_printf_length_specs[4].std = C89_OR_EXT; /* I */ 188} 189 190#undef C89_OR_EXT 191 192#endif 193