[all-commits] [llvm/llvm-project] 90d6ed: TarWriter: Only use 137 of the 155 prefix bytes.

[Nico Weber via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 90d6ed144c1352e393556a799e79da6ec3a5fab9
      https://github.com/llvm/llvm-project/commit/90d6ed144c1352e393556a799e79da6ec3a5fab9
  Author: Nico Weber <thakis at chromium.org>
  Date:   2020-04-27 (Mon, 27 Apr 2020)

  Changed paths:
    M llvm/lib/Support/TarWriter.cpp

  Log Message:
  -----------
  TarWriter: Only use 137 of the 155 prefix bytes.

This makes lld's --reproduce output more compatible with tar 1.13 and
before.  This is a very old version of tar, but it's the version in
both gnuwin and unxutils, and the cost for supporting them are very
low, so we might as well just do that.

https://bugs.chromium.org/p/chromium/issues/detail?id=1073524#c21
and onward has more details.

Differential Revision: https://reviews.llvm.org/D78945