gdb/producer.c

   1 /* Producer string parsers for GDB.
   2
   3    Copyright (C) 2012-2019 Free Software Foundation, Inc.
   4
   5    This file is part of GDB.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  19
  20 #include "defs.h"
  21 #include "producer.h"
  22 #include "gdbsupport/selftest.h"
  23
  24 /* See producer.h.  */
  25
  26 int
  27 producer_is_gcc_ge_4 (const char *producer)
  28 {
  29   int major, minor;
  30
  31   if (! producer_is_gcc (producer, &major, &minor))
  32     return -1;
  33   if (major < 4)
  34     return -1;
  35   if (major > 4)
  36     return INT_MAX;
  37   return minor;
  38 }
  39
  40 /* See producer.h.  */
  41
  42 int
  43 producer_is_gcc (const char *producer, int *major, int *minor)
  44 {
  45   const char *cs;
  46
  47   if (producer != NULL && startswith (producer, "GNU "))
  48     {
  49       int maj, min;
  50
  51       if (major == NULL)
  52         major = &maj;
  53       if (minor == NULL)
  54         minor = &min;
  55
  56       /* Skip any identifier after "GNU " - such as "C11" "C++" or "Java".
  57          A full producer string might look like:
  58          "GNU C 4.7.2"
  59          "GNU Fortran 4.8.2 20140120 (Red Hat 4.8.2-16) -mtune=generic ..."
  60          "GNU C++14 5.0.0 20150123 (experimental)"
  61       */
  62       cs = &producer[strlen ("GNU ")];
  63       while (*cs && !isspace (*cs))
  64         cs++;
  65       if (*cs && isspace (*cs))
  66         cs++;
  67       if (sscanf (cs, "%d.%d", major, minor) == 2)
  68         return 1;
  69     }
  70
  71   /* Not recognized as GCC.  */
  72   return 0;
  73 }
  74
  75
  76 /* See producer.h.  */
  77
  78 bool
  79 producer_is_icc (const char *producer, int *major, int *minor)
  80 {
  81   if (producer == NULL || !startswith (producer, "Intel(R)"))
  82     return false;
  83
  84   /* Prepare the used fields.  */
  85   int maj, min;
  86   if (major == NULL)
  87     major = &maj;
  88   if (minor == NULL)
  89     minor = &min;
  90
  91   *minor = 0;
  92   *major = 0;
  93
  94   /* Consumes the string till a "Version" is found.  */
  95   const char *cs = strstr (producer, "Version");
  96   if (cs != NULL)
  97     {
  98       cs = skip_to_space (cs);
  99
 100       int intermediate = 0;
 101       int nof = sscanf (cs, "%d.%d.%d.%*d", major, &intermediate, minor);
 102
 103       /* Internal versions are represented only as MAJOR.MINOR, where
 104          minor is usually 0.
 105          Public versions have 3 fields as described with the command
 106          above.  */
 107       if (nof == 3)
 108         return true;
 109
 110       if (nof == 2)
 111         {
 112           *minor = intermediate;
 113           return true;
 114         }
 115     }
 116
 117   static bool warning_printed = false;
 118   /* Not recognized as Intel, let the user know.  */
 119   if (!warning_printed)
 120     {
 121       warning (_("Could not recognize version of Intel Compiler in: \"%s\""),
 122                producer);
 123       warning_printed = true;
 124     }
 125   return false;
 126 }
 127
 128 #if defined GDB_SELF_TEST
 129 namespace selftests {
 130 namespace producer {
 131
 132 static void
 133 producer_parsing_tests ()
 134 {
 135   {
 136     /* Check that we don't crash if "Version" is not found in what
 137        looks like an ICC producer string.  */
 138     static const char icc_no_version[] = "Intel(R) foo bar";
 139
 140     int major = 0, minor = 0;
 141     SELF_CHECK (!producer_is_icc (icc_no_version, &major, &minor));
 142     SELF_CHECK (!producer_is_gcc (icc_no_version, &major, &minor));
 143   }
 144
 145   {
 146     static const char extern_f_14_1[] = "\
 147 Intel(R) Fortran Intel(R) 64 Compiler XE for applications running on \
 148 Intel(R) 64, \
 149 Version 14.0.1.074 Build 20130716";
 150
 151     int major = 0, minor = 0;
 152     SELF_CHECK (producer_is_icc (extern_f_14_1, &major, &minor)
 153                 && major == 14 && minor == 1);
 154     SELF_CHECK (!producer_is_gcc (extern_f_14_1, &major, &minor));
 155   }
 156
 157   {
 158     static const char intern_f_14[] = "\
 159 Intel(R) Fortran Intel(R) 64 Compiler XE for applications running on \
 160 Intel(R) 64, \
 161 Version 14.0";
 162
 163     int major = 0, minor = 0;
 164     SELF_CHECK (producer_is_icc (intern_f_14, &major, &minor)
 165                 && major == 14 && minor == 0);
 166     SELF_CHECK (!producer_is_gcc (intern_f_14, &major, &minor));
 167   }
 168
 169   {
 170     static const char intern_c_14[] = "\
 171 Intel(R) C++ Intel(R) 64 Compiler XE for applications running on \
 172 Intel(R) 64, \
 173 Version 14.0";
 174     int major = 0, minor = 0;
 175     SELF_CHECK (producer_is_icc (intern_c_14, &major, &minor)
 176                 && major == 14 && minor == 0);
 177     SELF_CHECK (!producer_is_gcc (intern_c_14, &major, &minor));
 178   }
 179
 180   {
 181     static const char intern_c_18[] = "\
 182 Intel(R) C++ Intel(R) 64 Compiler for applications running on \
 183 Intel(R) 64, \
 184 Version 18.0 Beta";
 185     int major = 0, minor = 0;
 186     SELF_CHECK (producer_is_icc (intern_c_18, &major, &minor)
 187                 && major == 18 && minor == 0);
 188   }
 189
 190   {
 191     static const char gnu[] = "GNU C 4.7.2";
 192     SELF_CHECK (!producer_is_icc (gnu, NULL, NULL));
 193
 194     int major = 0, minor = 0;
 195     SELF_CHECK (producer_is_gcc (gnu, &major, &minor)
 196                 && major == 4 && minor == 7);
 197   }
 198
 199   {
 200     static const char gnu_exp[] = "GNU C++14 5.0.0 20150123 (experimental)";
 201     int major = 0, minor = 0;
 202     SELF_CHECK (!producer_is_icc (gnu_exp, NULL, NULL));
 203     SELF_CHECK (producer_is_gcc (gnu_exp, &major, &minor)
 204                 && major == 5 && minor == 0);
 205   }
 206 }
 207 }
 208 }
 209 #endif
 210
 211 void
 212 _initialize_producer ()
 213 {
 214 #if defined GDB_SELF_TEST
 215   selftests::register_test
 216     ("producer-parser", selftests::producer::producer_parsing_tests);
 217 #endif
 218 }