Author: Vedant Kumar
Date: 2020-01-21T16:52:01-08:00
New Revision: a156da5fb361fd38ba379ec20856626c9e35f829

URL: 
https://github.com/llvm/llvm-project/commit/a156da5fb361fd38ba379ec20856626c9e35f829
DIFF: 
https://github.com/llvm/llvm-project/commit/a156da5fb361fd38ba379ec20856626c9e35f829.diff

LOG: [clang/Darwin] Remove __llvm_profile_counter_bias from export list for 
profiling

Do not export __llvm_profile_counter_bias when profiling is enabled
because this symbol is hidden and cannot be exported.

Should fix this bot error:

```
URL: http://green.lab.llvm.org/green/job/clang-stage1-RA/5678/consoleFull

Problem: Command Output (stdout):
--
ld: warning: cannot export hidden symbol ___llvm_profile_counter_bias
from
/Users/buildslave/jenkins/workspace/clang-stage1-RA/clang-build/lib/clang/11.0.0/lib/darwin/libclang_rt.profile_osx.a(InstrProfilingBiasVar.c.o)
ld: warning: cannot export hidden symbol ___llvm_profile_counter_bias
from
/Users/buildslave/jenkins/workspace/clang-stage1-RA/clang-build/lib/clang/11.0.0/lib/darwin/libclang_rt.profile_osx.a(InstrProfilingBiasVar.c.o)
```

Added: 
    

Modified: 
    clang/lib/Driver/ToolChains/Darwin.cpp

Removed: 
    


################################################################################
diff  --git a/clang/lib/Driver/ToolChains/Darwin.cpp 
b/clang/lib/Driver/ToolChains/Darwin.cpp
index bc2a3e7ef61b..344a14fe1ea7 100644
--- a/clang/lib/Driver/ToolChains/Darwin.cpp
+++ b/clang/lib/Driver/ToolChains/Darwin.cpp
@@ -1149,7 +1149,6 @@ void Darwin::addProfileRTLibs(const ArgList &Args,
     } else {
       addExportedSymbol(CmdArgs, "___llvm_profile_filename");
       addExportedSymbol(CmdArgs, "___llvm_profile_raw_version");
-      addExportedSymbol(CmdArgs, "___llvm_profile_counter_bias");
     }
     addExportedSymbol(CmdArgs, "_lprofDirMode");
   }


        
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