Commit b4121b33 authored by Dan Liew's avatar Dan Liew
Browse files

[Compiler-rt] Fix running ASan/TSan unit tests under macOS 12.0. 

On macOS the unit tests currently rely on libmalloc being used for
allocations (due to no functioning interceptors) but also having the
ASan/TSan allocator initialized in the same process.

This leads to crashes with the macOS 12.0 libmalloc nano allocator so
disable use of the allocator while running unit tests as a workaround.

rdar://80086125

Differential Revision: https://reviews.llvm.org/D107412
parent 143edeca

compiler-rt/unittests/lit.common.unit.cfg.py

+4 −0
Original line number Diff line number Diff line
@@ -46,6 +46,10 @@ if config.host_os == 'Darwin': 
  # 64-bit Darwin. Using more scales badly and hogs the system due to

  # inefficient handling of large mmap'd regions (terabytes) by the kernel.

  lit_config.parallelism_groups["shadow-memory"] = 3

  # Disable libmalloc nanoallocator due to crashes running on macOS 12.0.

  #

  # rdar://80086125

  config.environment['MallocNanoZone'] = '0'



  # The test config gets pickled and sent to multiprocessing workers, and that

  # only works for code if it is stored at the top level of some module.