[compiler-rt] [msan] Dynamically grow kNumStackOriginDescrs (PR #92826)

[Evgenii Stepanov via llvm-commits]

https://github.com/eugenis requested changes to this pull request.

This is not thread safe. I do not think you can do realloc() if you want the mutation to be lock free.

We could simply increase the constant size of the buffer (not perfect, but it is just .bss, not real memory).

We could go with an array of pointers to exponentially increasing allocations (i.e. same as your case, but never deallocate, instead just allocate more and consider the container a logical concatenation of multiple buffers).


https://github.com/llvm/llvm-project/pull/92826