11 Commits

Author SHA1 Message Date
Vitaly Buka
f13b7d0b02
Reland "[sanitizer] Fix partially initialized static TLS range" (#108883)
Reland llvm/llvm-project#108685

Arguments order was wrong on Windows and Darwin.
2024-09-16 14:05:00 -07:00
Vitaly Buka
9a1d0744ed
Revert "[sanitizer] Fix partially initialized static TLS range" (#108881)
Reverts llvm/llvm-project#108685

Breaks Darwin and Windows
https://lab.llvm.org/buildbot/#/builders/107/builds/2930
https://ci.swift.org/view/all/job/llvm.org/view/LLDB/job/as-lldb-cmake/11684/
2024-09-16 13:51:23 -07:00
Vitaly Buka
b7c9ebe4ec
[sanitizer] Fix partially initialized static TLS range (#108685)
Fixes asan, msan crash on check added in #108684.
The #108684 includes reproducer of the issue.

Change interface of `GetThreadStackAndTls` to
set `tls_begin` and `tls_end` at the same time.
2024-09-16 12:48:24 -07:00
Fangrui Song
80eea015ba [dfsan] Use namespace qualifier and internalize accidentally exported functions. NFC 2024-08-10 11:35:14 -07:00
Andrew Browne
dbf8c00b09 [DFSan] Remove trampolines to unblock opaque pointers. (Reland with fix)
https://github.com/llvm/llvm-project/issues/54172

Reviewed By: pcc

Differential Revision: https://reviews.llvm.org/D121250
2022-03-14 16:03:25 -07:00
Andrew Browne
edc33fa569 Revert "[DFSan] Remove trampolines to unblock opaque pointers."
This reverts commit 84af90336fed36f7dfdc468ded39236f32bbb82e.
2022-03-14 13:47:41 -07:00
Andrew Browne
84af90336f [DFSan] Remove trampolines to unblock opaque pointers.
https://github.com/llvm/llvm-project/issues/54172

Reviewed By: pcc

Differential Revision: https://reviews.llvm.org/D121250
2022-03-14 13:39:49 -07:00
Vitaly Buka
63886c21ec [NFC][dfsan] Split Init and ThreadStart 2021-11-08 19:16:55 -08:00
Jianzhou Zhao
1fb612d060 [dfsan] Add a DFSan allocator
This is a part of https://reviews.llvm.org/D101204

Reviewed By: morehouse

Differential Revision: https://reviews.llvm.org/D101666
2021-05-05 00:51:45 +00:00
Jianzhou Zhao
4e67ae7b6b [dfsan] Add origin ABI wrappers for thread/signal/fork
This is a part of https://reviews.llvm.org/D95835.

See bb91e02efd about the similar issue of fork in MSan's origin tracking.

Reviewed By: morehouse

Differential Revision: https://reviews.llvm.org/D98359
2021-03-15 16:18:00 +00:00
Jianzhou Zhao
0f3fd3b281 [dfsan] Add thread registration
This is a part of https://reviews.llvm.org/D95835.

This change is to address two problems
1) When recording stacks in origin tracking, libunwind is not async signal safe. Inside signal callbacks, we need
to use fast unwind. Fast unwind needs threads
2) StackDepot used by origin tracking is not async signal safe, we set a flag per thread inside
a signal callback to prevent from using it.

The thread registration is similar to ASan and MSan.

Related MSan changes are
* 98f5ea0dba
* f653cda269
* 5a7c364343

Some changes in the diff are used in the next diffs
1) The test case pthread.c is not very interesting for now. It will be
  extended to test origin tracking later.
2) DFsanThread::InSignalHandler will be used by origin tracking later.

Reviewed-by: morehouse

Differential Revision: https://reviews.llvm.org/D95963
2021-02-05 17:38:59 +00:00