[PATCH] D43834: Fix use after free in PDB linker.

[Zachary Turner via Phabricator via llvm-commits]

zturner added a comment.

In https://reviews.llvm.org/D43834#1021379, @smeenai wrote:

> To clarify, this is only an issue when using type server PDBs, right?


Yes

> In other words, if we're purely cross-compiling using clang and lld-link, we wouldn't run into this, since clang-cl doesn't use type server PDBs (in other words, it does `/Z7` instead of `/Zi`)?

No.  clang-cl doesn't *generate* type server PDBs, so its' true that all debug info *generated by clang-cl* will not experience this.  But you will need to link against the CRT, and that will pull in some variant of `libcmt.pdb`, and that is where you will hit this bug.


https://reviews.llvm.org/D43834