Commit Graph

5 Commits

Author SHA1 Message Date
Dmitry Vyukov 92a3a2dc3e sanitizer_common: introduce kInvalidTid/kMainTid
Currently we have a bit of a mess related to tids:
 - sanitizers re-declare kInvalidTid multiple times
 - some call it kUnknownTid
 - implicit assumptions that main tid is 0
 - asan/memprof claim their tids need to fit into 24 bits,
   but this does not seem to be true anymore
 - inconsistent use of u32/int to store tids

Introduce kInvalidTid/kMainTid in sanitizer_common
and use them consistently.

Reviewed By: vitalybuka

Differential Revision: https://reviews.llvm.org/D101428
2021-04-30 15:58:05 +02:00
Nikita Popov f161e84c10 Revert "[lsan] On Fuchsia, don't use atexit hook for leak checks"
This reverts commit 0caad9fe44.
This reverts commit c96d0cceb6.

Causes linker errors which were not fixed by the subsequent commit
either:

/home/nikic/llvm-project/compiler-rt/lib/asan/asan_rtl.cpp:503: error: undefined reference to '__asan::InstallAtExitCheckLeaks()'
2020-09-23 21:10:56 +02:00
Roland McGrath 0caad9fe44 [lsan] On Fuchsia, don't use atexit hook for leak checks
Fuchsia's system libraries are instrumented and use the lsan
allocator for internal purposes.  So leak checking needs to run
after all atexit hooks and after the system libraries' internal
exit-time hooks.  The <zircon/sanitizer.h> hook API calls the
__sanitizer_process_exit_hook function at exactly the right time.

Reviewed By: vitalybuka, phosek

Differential Revision: https://reviews.llvm.org/D86171
2020-09-23 11:10:58 -07:00
Roland McGrath 90a10f00ff [lsan] Support LeakSanitizer runtime on Fuchsia
Support LeakSanitizer runtime on Fuchsia.

Patch By: mcgrathr

Differential Revision: https://reviews.llvm.org/D72887
2020-01-28 11:34:53 -08:00
Roland McGrath 38fd1806a1 [lsan] Factor pthread-specific assumptions out of thread tracking code
This is a small refactoring to prepare for porting LSan to Fuchsia.
Factor out parts of lsan_thread.{cpp,h} that don't apply to Fuchsia.
Since existing supported systems are POSIX-based, the affected code
is moved to lsan_posix.{cpp.h}.

Patch By: mcgrathr

Differential Revision: https://reviews.llvm.org/D73309
2020-01-24 16:55:11 -08:00