From: Peter Collingbourne <peter@pcc.me.uk>
Date: Mon, 20 Mar 2023 23:38:54 +0000 (-0700)
Subject: Disable __sancov_lowest_stack on Windows.
X-Git-Tag: upstream/17.0.6~14201
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=1bd8e87e1b44d23c78f43caa6d419210954821b7;p=platform%2Fupstream%2Fllvm.git

Disable __sancov_lowest_stack on Windows.

Should fix Windows buildbot:
https://lab.llvm.org/buildbot/#/builders/127/builds/45401
---

diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_coverage_libcdep_new.cpp b/compiler-rt/lib/sanitizer_common/sanitizer_coverage_libcdep_new.cpp
index f2dd6b2..ce43269 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_coverage_libcdep_new.cpp
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_coverage_libcdep_new.cpp
@@ -284,7 +284,10 @@ SANITIZER_INTERFACE_WEAK_DEF(void, __sanitizer_cov_pcs_init, const uptr* beg,
 // E.g., -fsanitize=fuzzer-no-link
 // FIXME: Update Apple deployment target so that thread_local is always
 // supported, and remove the #if.
-#if !SANITIZER_APPLE
+// FIXME: Figure out how this should work on Windows, exported thread_local
+// symbols are not supported:
+// "data with thread storage duration may not have dll interface"
+#if !SANITIZER_APPLE && !SANITIZER_WINDOWS
 SANITIZER_INTERFACE_ATTRIBUTE SANITIZER_WEAK_ATTRIBUTE
 thread_local uptr __sancov_lowest_stack;
 #endif