[PATCH] D37452: lld-link: Add --rsp-quoting= flag

[Nico Weber via Phabricator via llvm-commits]

thakis created this revision.

This ports https://reviews.llvm.org/D19425 from clang / https://reviews.llvm.org/D22015 from the ELF port to COFF lld. This can be useful when linking COFF files on a posix host.

It's not clear to me if --rsp-quoting should affect how we parse %LINK% and %_LINK_%. Since the flag is about shell parsing of sorts, I decided it should, but I'm happy to be talked out of it. (I think it should definitely not affect .drective parsing.) Making --rsp-quoting affect LINK parsing does make the patch a bit more complicated, because we end up parsing args 3 times now: Once to inspect --rsp-quoting for LINK handling, and then once more to inspect --rsp-quoting for regular response file expansion.


https://reviews.llvm.org/D37452

Files:
  COFF/Driver.cpp
  COFF/Driver.h
  COFF/DriverUtils.cpp
  COFF/Options.td
  test/COFF/linkenv.test
  test/COFF/responsefile.test

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