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[John Criswell <criswell AT illinois.edu>]

On 12/7/12 5:46 PM, Daniel Huang wrote:

Hi,

I recently built Safecode from the release_32 branch with the -DPOOLALLOC flag turned on. Running:

clang -flto -fmemsafety -o ex1.o ex1.c

You need to specify a -L flag that will tell clang where to find the SAFECode libraries.  I believe that the -L flag should not be necessary if you do a "make install" to install SAFECode clang, but if you're using clang out of the build tree, then the -L option will be necessary.

-- John T.

returns:

Undefined symbols:

  "___fastgepcheck", referenced from:

      llvm bitcode in sc1-ouTaUh.o

  "___faststorecheck", referenced from:

      llvm bitcode in sc1-ouTaUh.o

  "___loadcheck", referenced from:

      llvm bitcode in sc1-ouTaUh.o

  "___fastloadcheck", referenced from:

      llvm bitcode in sc1-ouTaUh.o

  "___storecheck", referenced from:

      llvm bitcode in sc1-ouTaUh.o

ld: symbol(s) not found

clang: error: linker command failed with exit code 1 (use -v to see invocation)

Any thoughts on why this is happening? I think I am using the correct libLTO.dylib. Running the above without the -flto flag is fine. 

Regards,

Dan

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