gcc/config/i386/msformat-c.c

   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 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 const 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 };