diff options
Diffstat (limited to 'lib/lsan/lsan_common_linux.cc')
-rw-r--r-- | lib/lsan/lsan_common_linux.cc | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/lib/lsan/lsan_common_linux.cc b/lib/lsan/lsan_common_linux.cc index 5042c7b3ada5..cdd7f032a192 100644 --- a/lib/lsan/lsan_common_linux.cc +++ b/lib/lsan/lsan_common_linux.cc @@ -20,6 +20,7 @@ #include "sanitizer_common/sanitizer_common.h" #include "sanitizer_common/sanitizer_flags.h" +#include "sanitizer_common/sanitizer_getauxval.h" #include "sanitizer_common/sanitizer_linux.h" #include "sanitizer_common/sanitizer_stackdepot.h" @@ -30,8 +31,12 @@ static const char kLinkerName[] = "ld"; static char linker_placeholder[sizeof(LoadedModule)] ALIGNED(64); static LoadedModule *linker = nullptr; -static bool IsLinker(const char* full_name) { - return LibraryNameIs(full_name, kLinkerName); +static bool IsLinker(const LoadedModule& module) { +#if SANITIZER_USE_GETAUXVAL + return module.base_address() == getauxval(AT_BASE); +#else + return LibraryNameIs(module.full_name(), kLinkerName); +#endif // SANITIZER_USE_GETAUXVAL } __attribute__((tls_model("initial-exec"))) @@ -49,22 +54,25 @@ void InitializePlatformSpecificModules() { ListOfModules modules; modules.init(); for (LoadedModule &module : modules) { - if (!IsLinker(module.full_name())) continue; + if (!IsLinker(module)) + continue; if (linker == nullptr) { linker = reinterpret_cast<LoadedModule *>(linker_placeholder); *linker = module; module = LoadedModule(); } else { VReport(1, "LeakSanitizer: Multiple modules match \"%s\". " - "TLS will not be handled correctly.\n", kLinkerName); + "TLS and other allocations originating from linker might be " + "falsely reported as leaks.\n", kLinkerName); linker->clear(); linker = nullptr; return; } } if (linker == nullptr) { - VReport(1, "LeakSanitizer: Dynamic linker not found. " - "TLS will not be handled correctly.\n"); + VReport(1, "LeakSanitizer: Dynamic linker not found. TLS and other " + "allocations originating from linker might be falsely reported " + "as leaks.\n"); } } |