[PATCH] D118184: [ASan] Not lininking asan_static library for DSO.

Kirill Stoimenov via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Tue Jan 25 13:36:39 PST 2022


kstoimenov created this revision.
kstoimenov requested review of this revision.
Herald added a project: clang.
Herald added a subscriber: cfe-commits.

Whithout this change DSOs fail to link because of missing asan_report_(load|store)n functions.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D118184

Files:
  clang/lib/Driver/ToolChains/CommonArgs.cpp


Index: clang/lib/Driver/ToolChains/CommonArgs.cpp
===================================================================
--- clang/lib/Driver/ToolChains/CommonArgs.cpp
+++ clang/lib/Driver/ToolChains/CommonArgs.cpp
@@ -826,16 +826,16 @@
   if (SanArgs.needsStatsRt() && SanArgs.linkRuntimes())
     StaticRuntimes.push_back("stats_client");
 
-  // Always link the static runtime regardless of DSO or executable.
-  if (SanArgs.needsAsanRt())
-    HelperStaticRuntimes.push_back("asan_static");
-
   // Collect static runtimes.
   if (Args.hasArg(options::OPT_shared)) {
     // Don't link static runtimes into DSOs.
     return;
   }
 
+  // Always link the static runtime for executable.
+  if (SanArgs.needsAsanRt())
+    HelperStaticRuntimes.push_back("asan_static");
+
   // Each static runtime that has a DSO counterpart above is excluded below,
   // but runtimes that exist only as static are not affected by needsSharedRt.
 


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