Add randomize_va_space to drone

[mborland]

No description provided.

[mborland]

@sdarwin both sudo sysctl vm.mmap_rnd_bits=28 and 30 give the same memory mapping error. Any other ideas, or does it need to go at an earlier point in the script?

[sdarwin]

It should be 28: sudo sysctl vm.mmap_rnd_bits=28 , and inside the if [[ $(uname) == "Linux" ]]; then , however if that is not working, try to use clang 18.1

google/sanitizers#1716

Newer versions of TSan (LLVM 18.1.0 onwards: llvm/llvm-project@0784b1e) will automatically re-exec without ASLR, if the layout is incompatible. Additionally, TSan in LLVM 18.1.0 onwards can support 30 bits of ASLR entropy without disabling ASLR (llvm/llvm-project@7d039ef).

[mborland]

Clang-18 seems to be working fine. Thanks for the help!