Crusher hackathon updates (#164)

- improved error handling in dyninst
- improved error handling in omnitrace exe
- new logging facility for omnitrace exe
- improved backtraces
- disable concurrent kernels in rocprofiler
- updates `setup-env.sh` and modulefile
  - set `omnitrace_ROOT`
  - set `HSA_TOOLS_LIB` if roctracer or rocprofiler enabled
  - set `ROCP_TOOL_LIB` if rocprofiler enabled
  - closes #163 
- No longer make setting `HSA_ENABLE_INTERRUPT=0` the default 
  - this has performance implications
- this was set to workaround a bug in ROCR which caused an ioctl call in
ROCm to hang when interrupted. But it was only interrupted when realtime
sampling was enabled since the CPU-clock doesn't increment when waiting
  - This bug should be fixed in ROCm 5.3
- omnitrace no longer activates a realtime sampler by default when
sampling, thus this bug is no longer encountered unless the user
explicitly triggers realtime sampling

source/lib/common/setup.hpp

@@ -142,14 +142,6 @@ setup_environ(int _verbose, const std::string& _search_paths = {},
     _omnilib    = common::path::find_path(_omnilib, _verbose, _search_paths);
     _omnilib_dl = common::path::find_path(_omnilib_dl, _verbose, _search_paths);
 
-    // This environment variable forces the ROCR-Runtime to use polling to wait
-    // for signals rather than interrupts. We set this variable to avoid issues with
-    // rocm/roctracer hanging when interrupted by the sampler
-    //
-    // see:
-    // https://github.com/ROCm-Developer-Tools/roctracer/issues/22#issuecomment-572814465
-    setenv("HSA_ENABLE_INTERRUPT", "0", 0);
-
 #if defined(OMNITRACE_USE_ROCTRACER) && OMNITRACE_USE_ROCTRACER > 0
     setenv("HSA_TOOLS_LIB", _omnilib.c_str(), 0);
 #endif