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jeremybenn |
/* Check calls to formatted I/O functions (-Wformat).
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Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
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2001, 2002, 2003, 2004, 2005, 2007, 2008, 2010
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Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#include "config.h"
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#include "system.h"
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#include "coretypes.h"
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#include "tm.h"
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#include "tree.h"
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#include "flags.h"
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#include "c-common.h"
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#include "toplev.h"
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#include "intl.h"
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#include "diagnostic.h"
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#include "langhooks.h"
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#include "c-format.h"
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#include "alloc-pool.h"
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/* Mingw specific format attributes ms_printf, ms_scanf, and ms_strftime. */
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static format_length_info ms_printf_length_specs[] =
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{
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{ "h", FMT_LEN_h, STD_C89, NULL, FMT_LEN_none, STD_C89, 0 },
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{ "l", FMT_LEN_l, STD_C89, NULL, FMT_LEN_none, STD_C89, 0 },
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{ "I32", FMT_LEN_l, STD_EXT, NULL, FMT_LEN_none, STD_C89, 1 },
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{ "I64", FMT_LEN_ll, STD_EXT, NULL, FMT_LEN_none, STD_C89, 1 },
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{ "I", FMT_LEN_L, STD_EXT, NULL, FMT_LEN_none, STD_C89, 1 },
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{ NULL, FMT_LEN_none, STD_C89, NULL, FMT_LEN_none, STD_C89, 0 }
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};
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static const format_flag_spec ms_printf_flag_specs[] =
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{
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{ ' ', 0, 0, N_("' ' flag"), N_("the ' ' printf flag"), STD_C89 },
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{ '+', 0, 0, N_("'+' flag"), N_("the '+' printf flag"), STD_C89 },
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{ '#', 0, 0, N_("'#' flag"), N_("the '#' printf flag"), STD_C89 },
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{ '0', 0, 0, N_("'0' flag"), N_("the '0' printf flag"), STD_C89 },
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{ '-', 0, 0, N_("'-' flag"), N_("the '-' printf flag"), STD_C89 },
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{ '\'', 0, 0, N_("''' flag"), N_("the ''' printf flag"), STD_EXT },
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{ 'w', 0, 0, N_("field width"), N_("field width in printf format"), STD_C89 },
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{ 'p', 0, 0, N_("precision"), N_("precision in printf format"), STD_C89 },
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{ 'L', 0, 0, N_("length modifier"), N_("length modifier in printf format"), STD_C89 },
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{ 0, 0, 0, NULL, NULL, STD_C89 }
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};
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static const format_flag_pair ms_printf_flag_pairs[] =
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{
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{ ' ', '+', 1, 0 },
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{ '0', '-', 1, 0 }, { '0', 'p', 1, 'i' },
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{ 0, 0, 0, 0 }
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};
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static const format_flag_spec ms_scanf_flag_specs[] =
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{
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{ '*', 0, 0, N_("assignment suppression"), N_("the assignment suppression scanf feature"), STD_C89 },
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{ 'a', 0, 0, N_("'a' flag"), N_("the 'a' scanf flag"), STD_EXT },
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{ 'w', 0, 0, N_("field width"), N_("field width in scanf format"), STD_C89 },
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{ 'L', 0, 0, N_("length modifier"), N_("length modifier in scanf format"), STD_C89 },
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{ '\'', 0, 0, N_("''' flag"), N_("the ''' scanf flag"), STD_EXT },
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{ 0, 0, 0, NULL, NULL, STD_C89 }
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};
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static const format_flag_pair ms_scanf_flag_pairs[] =
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{
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{ '*', 'L', 0, 0 },
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{ 0, 0, 0, 0 }
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};
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static const format_flag_spec ms_strftime_flag_specs[] =
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{
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{ '#', 0, 0, N_("'#' flag"), N_("the '#' strftime flag"), STD_EXT },
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{ 0, 0, 0, NULL, NULL, STD_C89 }
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};
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static const format_flag_pair ms_strftime_flag_pairs[] =
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{
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{ 0, 0, 0, 0 }
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};
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static const format_char_info ms_print_char_table[] =
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{
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/* C89 conversion specifiers. */
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{ "di", 0, STD_C89, { T89_I, BADLEN, T89_S, T89_L, T9L_LL, T99_SST, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "-wp0 +'", "i", NULL },
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{ "oxX", 0, STD_C89, { T89_UI, BADLEN, T89_US, T89_UL, T9L_ULL, T99_ST, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "-wp0#", "i", NULL },
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{ "u", 0, STD_C89, { T89_UI, BADLEN, T89_US, T89_UL, T9L_ULL, T99_ST, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "-wp0'", "i", NULL },
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{ "fgG", 0, STD_C89, { T89_D, BADLEN, BADLEN, T99_D, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "-wp0 +#'", "", NULL },
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{ "eE", 0, STD_C89, { T89_D, BADLEN, BADLEN, T99_D, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "-wp0 +#", "", NULL },
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{ "c", 0, STD_C89, { T89_I, BADLEN, T89_S, T94_WI, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "-w", "", NULL },
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{ "s", 1, STD_C89, { T89_C, BADLEN, T89_S, T94_W, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "-wp", "cR", NULL },
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{ "p", 1, STD_C89, { T89_V, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "-w", "c", NULL },
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{ "n", 1, STD_C89, { T89_I, BADLEN, T89_S, T89_L, T9L_LL, BADLEN, BADLEN, BADLEN, T99_IM, BADLEN, BADLEN, BADLEN }, "", "W", NULL },
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/* X/Open conversion specifiers. */
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{ "C", 0, STD_EXT, { TEX_WI, BADLEN, T89_S, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "-w", "", NULL },
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{ "S", 1, STD_EXT, { TEX_W, BADLEN, T89_S, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "-wp", "R", NULL },
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{ NULL, 0, STD_C89, NOLENGTHS, NULL, NULL, NULL }
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};
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static const format_char_info ms_scan_char_table[] =
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{
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/* C89 conversion specifiers. */
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{ "di", 1, STD_C89, { T89_I, BADLEN, T89_S, T89_L, T9L_LL, T99_SST, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "*w'", "W", NULL },
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{ "u", 1, STD_C89, { T89_UI, BADLEN, T89_US, T89_UL, T9L_ULL, T99_ST, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "*w'", "W", NULL },
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{ "oxX", 1, STD_C89, { T89_UI, BADLEN, T89_US, T89_UL, T9L_ULL, T99_ST, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "*w", "W", NULL },
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{ "efgEG", 1, STD_C89, { T89_F, BADLEN, BADLEN, T89_D, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "*w'", "W", NULL },
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{ "c", 1, STD_C89, { T89_C, BADLEN, T89_S, T94_W, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "*w", "cW", NULL },
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{ "s", 1, STD_C89, { T89_C, BADLEN, T89_S, T94_W, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "*aw", "cW", NULL },
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{ "[", 1, STD_C89, { T89_C, BADLEN, BADLEN, T94_W, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "*aw", "cW[", NULL },
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{ "p", 2, STD_C89, { T89_V, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "*w", "W", NULL },
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{ "n", 1, STD_C89, { T89_I, BADLEN, T89_S, T89_L, T9L_LL, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "", "W", NULL },
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/* X/Open conversion specifiers. */
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{ "C", 1, STD_EXT, { TEX_W, BADLEN, T89_S, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "*w", "W", NULL },
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{ "S", 1, STD_EXT, { TEX_W, BADLEN, T89_S, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "*aw", "W", NULL },
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{ NULL, 0, STD_C89, NOLENGTHS, NULL, NULL, NULL }
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};
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static const format_char_info ms_time_char_table[] =
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{
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/* C89 conversion specifiers. */
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{ "ABZab", 0, STD_C89, NOLENGTHS, "#", "", NULL },
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{ "cx", 0, STD_C89, NOLENGTHS, "#", "3", NULL },
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{ "HIMSUWdmw", 0, STD_C89, NOLENGTHS, "#", "", NULL },
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{ "j", 0, STD_C89, NOLENGTHS, "#", "", NULL },
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{ "p", 0, STD_C89, NOLENGTHS, "#", "", NULL },
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{ "X", 0, STD_C89, NOLENGTHS, "#", "", NULL },
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{ "y", 0, STD_C89, NOLENGTHS, "#", "4", NULL },
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{ "Y", 0, STD_C89, NOLENGTHS, "#", "", NULL },
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{ "%", 0, STD_C89, NOLENGTHS, "", "", NULL },
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/* C99 conversion specifiers. */
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{ "z", 0, STD_C99, NOLENGTHS, "#", "", NULL },
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{ NULL, 0, STD_C89, NOLENGTHS, NULL, NULL, NULL }
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};
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EXPORTED_CONST format_kind_info mingw_format_attributes[3] =
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{
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{ "ms_printf", ms_printf_length_specs, ms_print_char_table, " +#0-'", NULL,
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ms_printf_flag_specs, ms_printf_flag_pairs,
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FMT_FLAG_ARG_CONVERT|FMT_FLAG_DOLLAR_MULTIPLE|FMT_FLAG_USE_DOLLAR|FMT_FLAG_EMPTY_PREC_OK,
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'w', 0, 'p', 0, 'L', 0,
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&integer_type_node, &integer_type_node
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},
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{ "ms_scanf", ms_printf_length_specs, ms_scan_char_table, "*'", NULL,
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ms_scanf_flag_specs, ms_scanf_flag_pairs,
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FMT_FLAG_ARG_CONVERT|FMT_FLAG_SCANF_A_KLUDGE|FMT_FLAG_USE_DOLLAR|FMT_FLAG_ZERO_WIDTH_BAD|FMT_FLAG_DOLLAR_GAP_POINTER_OK,
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'w', 0, 0, '*', 'L', 0,
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NULL, NULL
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},
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{ "ms_strftime", NULL, ms_time_char_table, "", "#",
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ms_strftime_flag_specs, ms_strftime_flag_pairs,
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FMT_FLAG_FANCY_PERCENT_OK, 0, 0, 0, 0, 0, 0,
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NULL, NULL
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}
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};
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/* Default overrides for printf, scanf and strftime. */
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EXPORTED_CONST target_ovr_attr mingw_format_attribute_overrides[4] =
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{
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{ "ms_printf", "printf" },
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{ "ms_scanf", "scanf" },
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{ "ms_strftime", "strftime" }
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};
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/* Setup for option Wpedantic-ms-format. */
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#ifdef TARGET_OVERRIDES_FORMAT_INIT
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/* Make sure TARGET_OVERRIDES_FORMAT_INIT is prototyped. */
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extern void TARGET_OVERRIDES_FORMAT_INIT (void);
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/* Helper. */
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#define C89_OR_EXT (warn_pedantic_ms_format ? STD_EXT : STD_C89)
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void
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TARGET_OVERRIDES_FORMAT_INIT (void)
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{
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ms_printf_length_specs[2].std = C89_OR_EXT; /* I32 */
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ms_printf_length_specs[3].std = C89_OR_EXT; /* I64 */
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ms_printf_length_specs[4].std = C89_OR_EXT; /* I */
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}
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#undef C89_OR_EXT
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#endif
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