[PATCH] D22130: Link static PIE programs against rcrt0.o on OpenBSD

[Stefan Kempf via cfe-commits]

sisnkemp created this revision.
sisnkemp added a reviewer: rafael.
sisnkemp added a subscriber: cfe-commits.

When building a static PIE binary, linking against /usr/lib/crt0.o results in segfaults when trying to run the binary.
Static PIE programs must link against /usr/lib/rcrt0.o instead to run correctly. Bitrig has this patch in their local clang tree also.


http://reviews.llvm.org/D22130

Files:
  lib/Driver/Tools.cpp

Index: lib/Driver/Tools.cpp
===================================================================
--- lib/Driver/Tools.cpp
+++ lib/Driver/Tools.cpp
@@ -8083,6 +8083,10 @@
       if (Args.hasArg(options::OPT_pg))
         CmdArgs.push_back(
             Args.MakeArgString(getToolChain().GetFilePath("gcrt0.o")));
+      else if (Args.hasArg(options::OPT_static) &&
+               !Args.hasArg(options::OPT_nopie))
+        CmdArgs.push_back(
+            Args.MakeArgString(getToolChain().GetFilePath("rcrt0.o")));
       else
         CmdArgs.push_back(
             Args.MakeArgString(getToolChain().GetFilePath("crt0.o")));


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