diff --git a/compiler-rt/lib/hwasan/hwasan_dynamic_shadow.cpp b/compiler-rt/lib/hwasan/hwasan_dynamic_shadow.cpp
--- a/compiler-rt/lib/hwasan/hwasan_dynamic_shadow.cpp
+++ b/compiler-rt/lib/hwasan/hwasan_dynamic_shadow.cpp
@@ -118,6 +118,7 @@
 
 void InitShadowGOT() {}
 
+#if !SANITIZER_FUCHSIA
 uptr FindDynamicShadowStart(uptr shadow_size_bytes) {
 #  if defined(HWASAN_ALIASING_MODE)
   constexpr uptr kAliasSize = 1ULL << kAddressTagShift;
@@ -128,6 +129,7 @@
   return MapDynamicShadow(shadow_size_bytes, kShadowScale, kShadowBaseAlignment,
                           kHighMemEnd);
 }
+#endif
 
 }  // namespace __hwasan