llvm/utils/gn/docs/deterministic.md

   1 Deterministic builds with LLVM's GN build
   2 =========================================
   3
   4 Summary: Use the following args.gn.
   5
   6     use_relative_paths_in_debug_info = true
   7
   8 It is possible to produce [locally deterministic][1] builds of LLVM
   9 with the GN build. It requires some configuration though.
  10
  11 1. Make debug info use relative paths by setting
  12    `use_relative_paths_in_debug_info = true` in your `args.gn` file. With this
  13    set, current debuggers need minor configuration to keep working.  See
  14    "Getting to local determinism" and "Getting debuggers to work well with
  15    locally deterministic builds" in the [deterministic builds][1] documentation
  16    for details.
  17
  18 1: http://blog.llvm.org/2019/11/deterministic-builds-with-clang-and-lld.html