gdb/producer.c

   1 /* Producer string parsers for GDB.
   2
   3    Copyright (C) 2012-2021 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 #include "gdb_regex.h"
  24
  25 /* See producer.h.  */
  26
  27 int
  28 producer_is_gcc_ge_4 (const char *producer)
  29 {
  30   int major, minor;
  31
  32   if (! producer_is_gcc (producer, &major, &minor))
  33     return -1;
  34   if (major < 4)
  35     return -1;
  36   if (major > 4)
  37     return INT_MAX;
  38   return minor;
  39 }
  40
  41 /* See producer.h.  */
  42
  43 int
  44 producer_is_gcc (const char *producer, int *major, int *minor)
  45 {
  46   const char *cs;
  47
  48   if (producer != NULL && startswith (producer, "GNU "))
  49     {
  50       int maj, min;
  51
  52       if (major == NULL)
  53         major = &maj;
  54       if (minor == NULL)
  55         minor = &min;
  56
  57       /* Skip any identifier after "GNU " - such as "C11" "C++" or "Java".
  58          A full producer string might look like:
  59          "GNU C 4.7.2"
  60          "GNU Fortran 4.8.2 20140120 (Red Hat 4.8.2-16) -mtune=generic ..."
  61          "GNU C++14 5.0.0 20150123 (experimental)"
  62       */
  63       cs = &producer[strlen ("GNU ")];
  64       while (*cs && !isspace (*cs))
  65         cs++;
  66       if (*cs && isspace (*cs))
  67         cs++;
  68       if (sscanf (cs, "%d.%d", major, minor) == 2)
  69         return 1;
  70     }
  71
  72   /* Not recognized as GCC.  */
  73   return 0;
  74 }
  75
  76 /* See producer.h.  */
  77
  78 bool
  79 producer_is_icc_ge_19 (const char *producer)
  80 {
  81   int major, minor;
  82
  83   if (! producer_is_icc (producer, &major, &minor))
  84     return false;
  85
  86   return major >= 19;
  87 }
  88
  89 /* See producer.h.  */
  90
  91 bool
  92 producer_is_icc (const char *producer, int *major, int *minor)
  93 {
  94   compiled_regex i_re ("Intel(R)", 0, "producer_is_icc");
  95   if (producer == nullptr || i_re.exec (producer, 0, nullptr, 0) != 0)
  96     return false;
  97
  98   /* Prepare the used fields.  */
  99   int maj, min;
 100   if (major == nullptr)
 101     major = &maj;
 102   if (minor == nullptr)
 103     minor = &min;
 104
 105   *minor = 0;
 106   *major = 0;
 107
 108   compiled_regex re ("[0-9]+\\.[0-9]+", REG_EXTENDED, "producer_is_icc");
 109   regmatch_t version[1];
 110   if (re.exec (producer, ARRAY_SIZE (version), version, 0) == 0
 111       && version[0].rm_so != -1)
 112     {
 113       const char *version_str = producer + version[0].rm_so;
 114       sscanf (version_str, "%d.%d", major, minor);
 115       return true;
 116     }
 117
 118   return false;
 119 }
 120
 121 /* See producer.h.  */
 122
 123 bool
 124 producer_is_llvm (const char *producer)
 125 {
 126   return ((producer != NULL) && (startswith (producer, "clang ")
 127                                  || startswith (producer, " F90 Flang ")));
 128 }
 129
 130 #if defined GDB_SELF_TEST
 131 namespace selftests {
 132 namespace producer {
 133
 134 static void
 135 producer_parsing_tests ()
 136 {
 137   {
 138     /* Check that we don't crash if "Version" is not found in what
 139        looks like an ICC producer string.  */
 140     static const char icc_no_version[] = "Intel(R) foo bar";
 141
 142     int major = 0, minor = 0;
 143     SELF_CHECK (!producer_is_icc (icc_no_version, &major, &minor));
 144     SELF_CHECK (!producer_is_gcc (icc_no_version, &major, &minor));
 145   }
 146
 147   {
 148     static const char extern_f_14_0[] = "\
 149 Intel(R) Fortran Intel(R) 64 Compiler XE for applications running on \
 150 Intel(R) 64, \
 151 Version 14.0.1.074 Build 20130716";
 152
 153     int major = 0, minor = 0;
 154     SELF_CHECK (producer_is_icc (extern_f_14_0, &major, &minor)
 155                 && major == 14 && minor == 0);
 156     SELF_CHECK (!producer_is_gcc (extern_f_14_0, &major, &minor));
 157   }
 158
 159   {
 160     static const char intern_f_14[] = "\
 161 Intel(R) Fortran Intel(R) 64 Compiler XE for applications running on \
 162 Intel(R) 64, \
 163 Version 14.0";
 164
 165     int major = 0, minor = 0;
 166     SELF_CHECK (producer_is_icc (intern_f_14, &major, &minor)
 167                 && major == 14 && minor == 0);
 168     SELF_CHECK (!producer_is_gcc (intern_f_14, &major, &minor));
 169   }
 170
 171   {
 172     static const char intern_c_14[] = "\
 173 Intel(R) C++ Intel(R) 64 Compiler XE for applications running on \
 174 Intel(R) 64, \
 175 Version 14.0";
 176     int major = 0, minor = 0;
 177     SELF_CHECK (producer_is_icc (intern_c_14, &major, &minor)
 178                 && major == 14 && minor == 0);
 179     SELF_CHECK (!producer_is_gcc (intern_c_14, &major, &minor));
 180   }
 181
 182   {
 183     static const char intern_c_18[] = "\
 184 Intel(R) C++ Intel(R) 64 Compiler for applications running on \
 185 Intel(R) 64, \
 186 Version 18.0 Beta";
 187     int major = 0, minor = 0;
 188     SELF_CHECK (producer_is_icc (intern_c_18, &major, &minor)
 189                 && major == 18 && minor == 0);
 190   }
 191
 192   {
 193     static const char gnu[] = "GNU C 4.7.2";
 194     SELF_CHECK (!producer_is_icc (gnu, NULL, NULL));
 195
 196     int major = 0, minor = 0;
 197     SELF_CHECK (producer_is_gcc (gnu, &major, &minor)
 198                 && major == 4 && minor == 7);
 199   }
 200
 201   {
 202     static const char gnu_exp[] = "GNU C++14 5.0.0 20150123 (experimental)";
 203     int major = 0, minor = 0;
 204     SELF_CHECK (!producer_is_icc (gnu_exp, NULL, NULL));
 205     SELF_CHECK (producer_is_gcc (gnu_exp, &major, &minor)
 206                 && major == 5 && minor == 0);
 207   }
 208
 209   {
 210     static const char clang_llvm_exp[] = "clang version 12.0.0 (CLANG: bld#8)";
 211     int major = 0, minor = 0;
 212     SELF_CHECK (!producer_is_icc (clang_llvm_exp, NULL, NULL));
 213     SELF_CHECK (!producer_is_gcc (clang_llvm_exp, &major, &minor));
 214     SELF_CHECK (producer_is_llvm (clang_llvm_exp));
 215   }
 216
 217   {
 218     static const char flang_llvm_exp[] = " F90 Flang - 1.5 2017-05-01";
 219     int major = 0, minor = 0;
 220     SELF_CHECK (!producer_is_icc (flang_llvm_exp, NULL, NULL));
 221     SELF_CHECK (!producer_is_gcc (flang_llvm_exp, &major, &minor));
 222     SELF_CHECK (producer_is_llvm (flang_llvm_exp));
 223   }
 224 }
 225 }
 226 }
 227 #endif
 228
 229 void _initialize_producer ();
 230 void
 231 _initialize_producer ()
 232 {
 233 #if defined GDB_SELF_TEST
 234   selftests::register_test
 235     ("producer-parser", selftests::producer::producer_parsing_tests);
 236 #endif
 237 }