File indexing completed on 2024-05-12 05:43:25

 /*
     Copyright (C) 2015 Volker Krause <vkrause@kde.org>
 
     This program is free software; you can redistribute it and/or modify it
     under the terms of the GNU Library General Public License as published by
     the Free Software Foundation; either version 2 of the License, or (at your
     option) any later version.
 
     This program is distributed in the hope that it will be useful, but WITHOUT
     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
     FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
     License for more details.
 
     You should have received a copy of the GNU General Public License
     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
 #include <dlfcn.h>
 #include <stdio.h>
 #include <string.h>
 #include <time.h>
 
 int usage()
 {
     fprintf(stderr, "Usage: ldbenchark-runner [RTLD_LAZY|RTLD_NOW] <files>\n");
     return 1;
 }
 
 int main(int argc, char **argv)
 {
     if (argc < 3)
         return usage();
 
     int flags = 0;
     if (strcmp(argv[1], "RTLD_NOW") == 0)
         flags = RTLD_NOW;
     else if (strcmp(argv[1], "RTLD_LAZY") == 0)
         flags = RTLD_LAZY;
     else
         return usage();
 
     for (int i = 2; i < argc; ++i) {
         if (dlopen(argv[i], flags | RTLD_NOLOAD) != NULL) {
             fprintf(stderr, "%s is already loaded, check argument order!\n", argv[i]);
             continue;
         }
 
         struct timespec start, end;
         clock_gettime(CLOCK_REALTIME, &start);
         void* result = dlopen(argv[i], flags);
         clock_gettime(CLOCK_REALTIME, &end);
 
         if (!result) {
             fprintf(stderr, "Loading %s failed: %s\n", argv[i], dlerror());
             return 1;
         }
 
         long long diff = (end.tv_sec - start.tv_sec) * 1000000000;
         if (diff == 0)
             diff = end.tv_nsec - start.tv_nsec;
         else {
             diff += end.tv_nsec;
             diff += 1000000000 - start.tv_nsec;
         }
         fprintf(stdout, "LDBENCHMARKRUNNER\t%s\t%.2f\n", argv[i], diff/1000.0);
     }
 
     return 0;
 }