LCOV - code coverage report
Current view: top level - gcc/c - c-errors.c (source / functions) Hit Total Coverage
Test: gcc.info Lines: 67 67 100.0 %
Date: 2020-03-28 11:57:23 Functions: 3 3 100.0 %
Legend: Lines: hit not hit | Branches: + taken - not taken # not executed Branches: 0 0 -

           Branch data     Line data    Source code
       1                 :            : /* Various diagnostic subroutines for the GNU C language.
       2                 :            :    Copyright (C) 2000-2020 Free Software Foundation, Inc.
       3                 :            :    Contributed by Gabriel Dos Reis <gdr@codesourcery.com>
       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 "c-tree.h"
      26                 :            : #include "opts.h"
      27                 :            : 
      28                 :            : /* Issue an ISO C11 pedantic warning MSGID if -pedantic outside C2X mode,
      29                 :            :    otherwise issue warning MSGID if -Wc11-c2X-compat is specified.
      30                 :            :    This function is supposed to be used for matters that are allowed in
      31                 :            :    ISO C2X but not supported in ISO C11, thus we explicitly don't pedwarn
      32                 :            :    when C2X is specified.  */
      33                 :            : 
      34                 :            : bool
      35                 :      42866 : pedwarn_c11 (location_t location, int opt, const char *gmsgid, ...)
      36                 :            : {
      37                 :      42866 :   diagnostic_info diagnostic;
      38                 :      42866 :   va_list ap;
      39                 :      42866 :   bool warned = false;
      40                 :      42866 :   rich_location richloc (line_table, location);
      41                 :            : 
      42                 :      42866 :   va_start (ap, gmsgid);
      43                 :            :   /* If desired, issue the C11/C2X compat warning, which is more specific
      44                 :            :      than -pedantic.  */
      45                 :      42866 :   if (warn_c11_c2x_compat > 0)
      46                 :            :     {
      47                 :          6 :       diagnostic_set_info (&diagnostic, gmsgid, &ap, &richloc,
      48                 :          6 :                            (pedantic && !flag_isoc2x)
      49                 :            :                            ? DK_PEDWARN : DK_WARNING);
      50                 :          6 :       diagnostic.option_index = OPT_Wc11_c2x_compat;
      51                 :          6 :       warned = diagnostic_report_diagnostic (global_dc, &diagnostic);
      52                 :            :     }
      53                 :            :   /* -Wno-c11-c2x-compat suppresses even the pedwarns.  */
      54                 :      42860 :   else if (warn_c11_c2x_compat == 0)
      55                 :            :     ;
      56                 :            :   /* For -pedantic outside C2X, issue a pedwarn.  */
      57                 :      42855 :   else if (pedantic && !flag_isoc2x)
      58                 :            :     {
      59                 :         33 :       diagnostic_set_info (&diagnostic, gmsgid, &ap, &richloc, DK_PEDWARN);
      60                 :         33 :       diagnostic.option_index = opt;
      61                 :         33 :       warned = diagnostic_report_diagnostic (global_dc, &diagnostic);
      62                 :            :     }
      63                 :      42866 :   va_end (ap);
      64                 :      42866 :   return warned;
      65                 :            : }
      66                 :            : 
      67                 :            : /* Issue an ISO C99 pedantic warning MSGID if -pedantic outside C11 mode,
      68                 :            :    otherwise issue warning MSGID if -Wc99-c11-compat is specified.
      69                 :            :    This function is supposed to be used for matters that are allowed in
      70                 :            :    ISO C11 but not supported in ISO C99, thus we explicitly don't pedwarn
      71                 :            :    when C11 is specified.  */
      72                 :            : 
      73                 :            : bool
      74                 :      84320 : pedwarn_c99 (location_t location, int opt, const char *gmsgid, ...)
      75                 :            : {
      76                 :      84320 :   diagnostic_info diagnostic;
      77                 :      84320 :   va_list ap;
      78                 :      84320 :   bool warned = false;
      79                 :      84320 :   rich_location richloc (line_table, location);
      80                 :            : 
      81                 :      84320 :   va_start (ap, gmsgid);
      82                 :            :   /* If desired, issue the C99/C11 compat warning, which is more specific
      83                 :            :      than -pedantic.  */
      84                 :      84320 :   if (warn_c99_c11_compat > 0)
      85                 :            :     {
      86                 :         45 :       diagnostic_set_info (&diagnostic, gmsgid, &ap, &richloc,
      87                 :         45 :                            (pedantic && !flag_isoc11)
      88                 :            :                            ? DK_PEDWARN : DK_WARNING);
      89                 :         45 :       diagnostic.option_index = OPT_Wc99_c11_compat;
      90                 :         45 :       warned = diagnostic_report_diagnostic (global_dc, &diagnostic);
      91                 :            :     }
      92                 :            :   /* -Wno-c99-c11-compat suppresses even the pedwarns.  */
      93                 :      84275 :   else if (warn_c99_c11_compat == 0)
      94                 :            :     ;
      95                 :            :   /* For -pedantic outside C11, issue a pedwarn.  */
      96                 :      52113 :   else if (pedantic && !flag_isoc11)
      97                 :            :     {
      98                 :         65 :       diagnostic_set_info (&diagnostic, gmsgid, &ap, &richloc, DK_PEDWARN);
      99                 :         65 :       diagnostic.option_index = opt;
     100                 :         65 :       warned = diagnostic_report_diagnostic (global_dc, &diagnostic);
     101                 :            :     }
     102                 :      84320 :   va_end (ap);
     103                 :      84320 :   return warned;
     104                 :            : }
     105                 :            : 
     106                 :            : /* Issue an ISO C90 pedantic warning MSGID if -pedantic outside C99 mode,
     107                 :            :    otherwise issue warning MSGID if -Wc90-c99-compat is specified, or if
     108                 :            :    a specific option such as -Wlong-long is specified.
     109                 :            :    This function is supposed to be used for matters that are allowed in
     110                 :            :    ISO C99 but not supported in ISO C90, thus we explicitly don't pedwarn
     111                 :            :    when C99 is specified.  (There is no flag_c90.)  */
     112                 :            : 
     113                 :            : bool
     114                 :    2350600 : pedwarn_c90 (location_t location, int opt, const char *gmsgid, ...)
     115                 :            : {
     116                 :    2350600 :   diagnostic_info diagnostic;
     117                 :    2350600 :   va_list ap;
     118                 :    2350600 :   bool warned = false;
     119                 :    2350600 :   rich_location richloc (line_table, location);
     120                 :            : 
     121                 :    2350600 :   va_start (ap, gmsgid);
     122                 :            :   /* Warnings such as -Wvla are the most specific ones.  */
     123                 :    2350600 :   if (opt != OPT_Wpedantic)
     124                 :            :     {
     125                 :    1685090 :       int opt_var = *(int *) option_flag_var (opt, &global_options);
     126                 :    1685090 :       if (opt_var == 0)
     127                 :    1555020 :         goto out;
     128                 :     130062 :       else if (opt_var > 0)
     129                 :            :         {
     130                 :        387 :           diagnostic_set_info (&diagnostic, gmsgid, &ap, &richloc,
     131                 :        387 :                                (pedantic && !flag_isoc99)
     132                 :            :                                ? DK_PEDWARN : DK_WARNING);
     133                 :        387 :           diagnostic.option_index = opt;
     134                 :        387 :           diagnostic_report_diagnostic (global_dc, &diagnostic);
     135                 :        387 :           warned = true;
     136                 :        387 :           goto out;
     137                 :            :         }
     138                 :            :     }
     139                 :            :   /* Maybe we want to issue the C90/C99 compat warning, which is more
     140                 :            :      specific than -pedantic.  */
     141                 :     795190 :   if (warn_c90_c99_compat > 0)
     142                 :            :     {
     143                 :         67 :       diagnostic_set_info (&diagnostic, gmsgid, &ap, &richloc,
     144                 :         67 :                            (pedantic && !flag_isoc99)
     145                 :            :                            ? DK_PEDWARN : DK_WARNING);
     146                 :         67 :       diagnostic.option_index = OPT_Wc90_c99_compat;
     147                 :         67 :       diagnostic_report_diagnostic (global_dc, &diagnostic);
     148                 :            :     }
     149                 :            :   /* -Wno-c90-c99-compat suppresses the pedwarns.  */
     150                 :     795123 :   else if (warn_c90_c99_compat == 0)
     151                 :            :     ;
     152                 :            :   /* For -pedantic outside C99, issue a pedwarn.  */
     153                 :     535735 :   else if (pedantic && !flag_isoc99)
     154                 :            :     {
     155                 :        167 :       diagnostic_set_info (&diagnostic, gmsgid, &ap, &richloc, DK_PEDWARN);
     156                 :        167 :       diagnostic.option_index = opt;
     157                 :        167 :       diagnostic_report_diagnostic (global_dc, &diagnostic);
     158                 :        167 :       warned = true;
     159                 :            :     }
     160                 :     535568 : out:
     161                 :    2350600 :   va_end (ap);
     162                 :    2350600 :   return warned;
     163                 :            : }

Generated by: LCOV version 1.0

LCOV profile is generated on x86_64 machine using following configure options: configure --disable-bootstrap --enable-coverage=opt --enable-languages=c,c++,fortran,go,jit,lto --enable-host-shared. GCC test suite is run with the built compiler.