tree f6dc072ab361fa0da4f71bf6c77de68f987a22be
parent 83854f31e881f0f9aa2bd848a84a94e01fb09dd9
author Alex Brachet <abrachet@google.com> 1656104117 +0000
committer CQ Bot <fuchsia-internal-scoped@luci-project-accounts.iam.gserviceaccount.com> 1656104117 +0000

[kernel] Hide version string from compiler

kVersionString is filled in outside of the source file that defines
this variable. The compiler during lto picked up that because it is
const the size should always be 3, but this isn't actually the case.
By just hiding any provenance information about the return value of
version_string from the compiler we force it to actually call
strlen at runtime with the real value.

Fixed: 103245
Change-Id: I40291d02f29bb091c4316737b7d6b6c07efc6824
Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/693800
Reviewed-by: Roland McGrath <mcgrathr@google.com>
Commit-Queue: Alex Brachet <abrachet@google.com>
Fuchsia-Auto-Submit: Alex Brachet <abrachet@google.com>