File indexing completed on 2024-05-12 04:39:14

 /*
     SPDX-FileCopyrightText: 2022 Milian Wolff <mail@milianw.de>
 
     SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
 */
 
 #include "sanitizer_test_init.h"
 
 #include <QString>
 #include <QtGlobal>
 
 #if defined(Q_OS_UNIX)
 #include <unistd.h>
 #endif
 
 namespace KDevelop
 {
 namespace
 {
 #if defined(Q_OS_UNIX)
     /**
      * LLVM and ASAN don't play well together, see [1].
      * We have to disable sigaltstack or we crash.
      * The code below detects whether we need to disable this option.
      * If yes, we change the environment and re-execute ourselves with the new
      * environment. Sadly, it doesn't seem to work to use __asan_default_options
      * for this purpose here...
      *
      * [1]: https://github.com/google/sanitizers/issues/849
      */
     [[maybe_unused]] void setupAsan(char** argv)
     {
         auto asanOptions = qEnvironmentVariable("ASAN_OPTIONS");
         if (asanOptions.contains(QLatin1String("use_sigaltstack"))) {
             return; // nothing to do
         }
 
         asanOptions += QLatin1String(",use_sigaltstack=0");
         qputenv("ASAN_OPTIONS", asanOptions.toUtf8());
 
         execv(argv[0], argv);
     }
 #endif
 }
 
 void sanitizerTestInit([[maybe_unused]] char** argv)
 {
 #if defined(Q_OS_UNIX)
 
 // gcc
 #if defined(__SANITIZE_ADDRESS__)
     setupAsan(argv);
     return;
 #endif
 
 // clang
 #if defined(__has_feature)
 #if __has_feature(address_sanitizer)
     setupAsan(argv);
     return;
 #endif
 #endif
 
 #endif
 }
 }