extract libgbeinterp.so from runtime (libcl.so)

currently, there are same symbol names in libinterp.a (inside
libcl.so) and libgbe.so (compiler), and so have to dlopen libgbe.so
with RTLD_DEEPBIND, this flag makes std::cerr inside libgbe crash.

extract the interp part from libcl.so as libgbeinterp.so, therefore,
first dlopen libgbe.so without RTLD_DEEPBIND, then dlopen libgbeinterp.so
with RTLD_DEEPBIND, to fix the std:cerr crash issue.

Signed-off-by: Guo Yejun <yejun.guo@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

10 files changed, 226 insertions, 28 deletions

diff --git a/backend/CMakeLists.txt b/backend/CMakeLists.txt
index a20f423..d25255e 100644
--- a/backend/CMakeLists.txt
+++ b/backend/CMakeLists.txt
@@ -102,6 +102,8 @@ add_subdirectory (src)
 set(LOCAL_PCH_OBJECT_DIR ${LOCAL_PCH_OBJECT_DIR} PARENT_SCOPE)
 set(LOCAL_PCM_OBJECT_DIR ${LOCAL_PCM_OBJECT_DIR} PARENT_SCOPE)
 set(LOCAL_GBE_OBJECT_DIR ${LOCAL_GBE_OBJECT_DIR} PARENT_SCOPE)
+set(LOCAL_INTERP_OBJECT_DIR ${LOCAL_INTERP_OBJECT_DIR} PARENT_SCOPE)
+
 set (GBE_BIN_GENERATER
      OCL_PCM_PATH=${LOCAL_PCM_OBJECT_DIR} OCL_PCH_PATH=${LOCAL_PCH_OBJECT_DIR} ${CMAKE_CURRENT_BINARY_DIR}/src/gbe_bin_generater
      PARENT_SCOPE)
diff --git a/backend/src/CMakeLists.txt b/backend/src/CMakeLists.txt
index 528595f..02c6404 100644
--- a/backend/src/CMakeLists.txt
+++ b/backend/src/CMakeLists.txt
@@ -195,7 +195,7 @@ target_link_libraries(
                       ${CMAKE_THREAD_LIBS_INIT}
                       ${CMAKE_DL_LIBS})
 
-add_library(interp STATIC gbe_bin_interpreter.cpp)
+add_library(gbeinterp SHARED gbe_bin_interpreter.cpp)
 
 if (LLVM_VERSION_NODOT VERSION_EQUAL 34)
   find_library(TERMINFO NAMES tinfo ncurses)
@@ -212,6 +212,7 @@ ADD_EXECUTABLE(gbe_bin_generater gbe_bin_generater.cpp)
 TARGET_LINK_LIBRARIES(gbe_bin_generater gbe)
 
 install (TARGETS gbe LIBRARY DESTINATION ${LIB_INSTALL_DIR}/beignet)
+install (TARGETS gbeinterp LIBRARY DESTINATION ${LIB_INSTALL_DIR}/beignet)
 #install (FILES backend/program.h DESTINATION include/gen)
 install (FILES ${ocl_blob_file} DESTINATION ${LIB_INSTALL_DIR}/beignet)
 install (FILES ${pch_object} DESTINATION ${LIB_INSTALL_DIR}/beignet)
@@ -221,10 +222,12 @@ install (FILES ${CMAKE_CURRENT_BINARY_DIR}/${pcm_lib} DESTINATION ${LIB_INSTALL_
 set (LOCAL_PCH_OBJECT_DIR "${local_pch_object}:${beignet_install_path}/ocl_stdlib.h.pch" PARENT_SCOPE)
 set (LOCAL_PCM_OBJECT_DIR "${CMAKE_CURRENT_BINARY_DIR}/${pcm_lib}:${beignet_install_path}/${pcm_lib}" PARENT_SCOPE)
 set (LOCAL_GBE_OBJECT_DIR "${CMAKE_CURRENT_BINARY_DIR}/libgbe.so" PARENT_SCOPE)
+set (LOCAL_INTERP_OBJECT_DIR "${CMAKE_CURRENT_BINARY_DIR}/libgbeinterp.so" PARENT_SCOPE)
 
 set (PCH_OBJECT_DIR "${beignet_install_path}/ocl_stdlib.h.pch")
 set (PCM_OBJECT_DIR "${beignet_install_path}/${pcm_lib}")
 set (GBE_OBJECT_DIR "${beignet_install_path}/libgbe.so")
+set (INTERP_OBJECT_DIR "${beignet_install_path}/libgbeinterp.so")
 configure_file (
   "GBEConfig.h.in"
   "GBEConfig.h"
diff --git a/backend/src/GBEConfig.h.in b/backend/src/GBEConfig.h.in
index ad24390..f5c69c6 100644
--- a/backend/src/GBEConfig.h.in
+++ b/backend/src/GBEConfig.h.in
@@ -4,3 +4,4 @@
 #define PCH_OBJECT_DIR "@PCH_OBJECT_DIR@"
 #define PCM_OBJECT_DIR "@PCM_OBJECT_DIR@"
 #define GBE_OBJECT_DIR "@GBE_OBJECT_DIR@"
+#define INTERP_OBJECT_DIR "@INTERP_OBJECT_DIR@"
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 4c2b027..a8d35d6 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -99,7 +99,6 @@ link_directories (${LLVM_LIBRARY_DIR})
 add_library(cl SHARED ${OPENCL_SRC})
 target_link_libraries(
                       cl
-                      interp
                       ${XLIB_LIBRARY}
                       ${XEXT_LIBRARIES}
                       ${XFIXES_LIBRARIES}
diff --git a/src/cl_api.c b/src/cl_api.c
index 0800c09..6206e10 100644
--- a/src/cl_api.c
+++ b/src/cl_api.c
@@ -920,7 +920,7 @@ clGetProgramInfo(cl_program       program,
                    program->source, CL_SUCCESS);
   } else if (param_name == CL_PROGRAM_BINARY_SIZES) {
     if (program->binary == NULL) {
-      program->binary_sz = gbe_program_serialize_to_binary(program->opaque, &program->binary);
+      program->binary_sz = compiler_program_serialize_to_binary(program->opaque, &program->binary);
     }
 
     if (program->binary == NULL || program->binary_sz == 0) {
@@ -936,7 +936,7 @@ clGetProgramInfo(cl_program       program,
     /* param_value points to an array of n
        pointers allocated by the caller */
     if (program->binary == NULL) {
-      program->binary_sz = gbe_program_serialize_to_binary(program->opaque, &program->binary);
+      program->binary_sz = compiler_program_serialize_to_binary(program->opaque, &program->binary);
     }
 
     if (program->binary == NULL || program->binary_sz == 0) {
diff --git a/src/cl_gbe_loader.cpp b/src/cl_gbe_loader.cpp
index da83c9a..794b12b 100644
--- a/src/cl_gbe_loader.cpp
+++ b/src/cl_gbe_loader.cpp
@@ -15,15 +15,197 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#include <iostream>
 #include <dlfcn.h>
 #include <string.h>
+#include <stdio.h>
 #include "cl_gbe_loader.h"
 #include "backend/src/GBEConfig.h"
 
+//function pointer from libgbe.so
+gbe_program_new_from_source_cb *compiler_program_new_from_source = NULL;
+gbe_program_serialize_to_binary_cb *compiler_program_serialize_to_binary = NULL;
+gbe_program_new_from_llvm_cb *compiler_program_new_from_llvm = NULL;
+gbe_kernel_set_const_buffer_size_cb *compiler_kernel_set_const_buffer_size = NULL;
+gbe_set_image_base_index_cb *compiler_set_image_base_index_compiler = NULL;
+
+//function pointer from libgbeinterp.so
+gbe_program_new_from_binary_cb *gbe_program_new_from_binary = NULL;
+gbe_program_get_global_constant_size_cb *gbe_program_get_global_constant_size = NULL;
+gbe_program_get_global_constant_data_cb *gbe_program_get_global_constant_data = NULL;
+gbe_program_delete_cb *gbe_program_delete = NULL;
+gbe_program_get_kernel_num_cb *gbe_program_get_kernel_num = NULL;
+gbe_program_get_kernel_by_name_cb *gbe_program_get_kernel_by_name = NULL;
+gbe_program_get_kernel_cb *gbe_program_get_kernel = NULL;
+gbe_kernel_get_name_cb *gbe_kernel_get_name = NULL;
+gbe_kernel_get_code_cb *gbe_kernel_get_code = NULL;
+gbe_kernel_get_code_size_cb *gbe_kernel_get_code_size = NULL;
+gbe_kernel_get_arg_num_cb *gbe_kernel_get_arg_num = NULL;
+gbe_kernel_get_arg_size_cb *gbe_kernel_get_arg_size = NULL;
+gbe_kernel_get_arg_type_cb *gbe_kernel_get_arg_type = NULL;
+gbe_kernel_get_arg_align_cb *gbe_kernel_get_arg_align = NULL;
+gbe_kernel_get_simd_width_cb *gbe_kernel_get_simd_width = NULL;
+gbe_kernel_get_curbe_offset_cb *gbe_kernel_get_curbe_offset = NULL;
+gbe_kernel_get_curbe_size_cb *gbe_kernel_get_curbe_size = NULL;
+gbe_kernel_get_stack_size_cb *gbe_kernel_get_stack_size = NULL;
+gbe_kernel_get_scratch_size_cb *gbe_kernel_get_scratch_size = NULL;
+gbe_kernel_get_required_work_group_size_cb *gbe_kernel_get_required_work_group_size = NULL;
+gbe_kernel_use_slm_cb *gbe_kernel_use_slm = NULL;
+gbe_kernel_get_slm_size_cb *gbe_kernel_get_slm_size = NULL;
+gbe_kernel_get_sampler_size_cb *gbe_kernel_get_sampler_size = NULL;
+gbe_kernel_get_sampler_data_cb *gbe_kernel_get_sampler_data = NULL;
+gbe_kernel_get_compile_wg_size_cb *gbe_kernel_get_compile_wg_size = NULL;
+gbe_kernel_get_image_size_cb *gbe_kernel_get_image_size = NULL;
+gbe_kernel_get_image_data_cb *gbe_kernel_get_image_data = NULL;
+gbe_set_image_base_index_cb *gbe_set_image_base_index_interp = NULL;
+gbe_get_image_base_index_cb *gbe_get_image_base_index = NULL;
+
 struct GbeLoaderInitializer
 {
-  GbeLoaderInitializer() {
-    inited = false;
+  GbeLoaderInitializer()
+  {
+    LoadCompiler();
+
+    const char* path;
+    if (!LoadInterp(path))
+      std::cerr << "unable to load " << path << " which is part of the driver, please check!" << std::endl;
+  }
+
+  bool LoadInterp(const char*& path)
+  {
+    const char* interpPath = getenv("OCL_INTERP_PATH");
+    if (interpPath == NULL)
+      interpPath = INTERP_OBJECT_DIR;
+
+    path = interpPath;
+
+    dlhInterp = dlopen(interpPath, RTLD_LAZY | RTLD_LOCAL | RTLD_DEEPBIND);
+    if (dlhInterp == NULL) {
+      return false;
+    }
+
+    gbe_program_new_from_binary = *(gbe_program_new_from_binary_cb**)dlsym(dlhInterp, "gbe_program_new_from_binary");
+    if (gbe_program_new_from_binary == NULL)
+      return false;
+
+    gbe_program_get_global_constant_size = *(gbe_program_get_global_constant_size_cb**)dlsym(dlhInterp, "gbe_program_get_global_constant_size");
+    if (gbe_program_get_global_constant_size == NULL)
+      return false;
+
+    gbe_program_get_global_constant_data = *(gbe_program_get_global_constant_data_cb**)dlsym(dlhInterp, "gbe_program_get_global_constant_data");
+    if (gbe_program_get_global_constant_data == NULL)
+      return false;
+
+    gbe_program_delete = *(gbe_program_delete_cb**)dlsym(dlhInterp, "gbe_program_delete");
+    if (gbe_program_delete == NULL)
+      return false;
+
+    gbe_program_get_kernel_num = *(gbe_program_get_kernel_num_cb**)dlsym(dlhInterp, "gbe_program_get_kernel_num");
+    if (gbe_program_get_kernel_num == NULL)
+      return false;
+
+    gbe_program_get_kernel_by_name = *(gbe_program_get_kernel_by_name_cb**)dlsym(dlhInterp, "gbe_program_get_kernel_by_name");
+    if (gbe_program_get_kernel_by_name == NULL)
+      return false;
+
+    gbe_program_get_kernel = *(gbe_program_get_kernel_cb**)dlsym(dlhInterp, "gbe_program_get_kernel");
+    if (gbe_program_get_kernel == NULL)
+      return false;
+
+    gbe_kernel_get_name = *(gbe_kernel_get_name_cb**)dlsym(dlhInterp, "gbe_kernel_get_name");
+    if (gbe_kernel_get_name == NULL)
+      return false;
+
+    gbe_kernel_get_code = *(gbe_kernel_get_code_cb**)dlsym(dlhInterp, "gbe_kernel_get_code");
+    if (gbe_kernel_get_code == NULL)
+      return false;
+
+    gbe_kernel_get_code_size = *(gbe_kernel_get_code_size_cb**)dlsym(dlhInterp, "gbe_kernel_get_code_size");
+    if (gbe_kernel_get_code_size == NULL)
+      return false;
+
+    gbe_kernel_get_arg_num = *(gbe_kernel_get_arg_num_cb**)dlsym(dlhInterp, "gbe_kernel_get_arg_num");
+    if (gbe_kernel_get_arg_num == NULL)
+      return false;
+
+    gbe_kernel_get_arg_size = *(gbe_kernel_get_arg_size_cb**)dlsym(dlhInterp, "gbe_kernel_get_arg_size");
+    if (gbe_kernel_get_arg_size == NULL)
+      return false;
+
+    gbe_kernel_get_arg_type = *(gbe_kernel_get_arg_type_cb**)dlsym(dlhInterp, "gbe_kernel_get_arg_type");
+    if (gbe_kernel_get_arg_type == NULL)
+      return false;
+
+    gbe_kernel_get_arg_align = *(gbe_kernel_get_arg_align_cb**)dlsym(dlhInterp, "gbe_kernel_get_arg_align");
+    if (gbe_kernel_get_arg_align == NULL)
+      return false;
+
+    gbe_kernel_get_simd_width = *(gbe_kernel_get_simd_width_cb**)dlsym(dlhInterp, "gbe_kernel_get_simd_width");
+    if (gbe_kernel_get_simd_width == NULL)
+      return false;
+
+    gbe_kernel_get_curbe_offset = *(gbe_kernel_get_curbe_offset_cb**)dlsym(dlhInterp, "gbe_kernel_get_curbe_offset");
+    if (gbe_kernel_get_curbe_offset == NULL)
+      return false;
+
+    gbe_kernel_get_curbe_size = *(gbe_kernel_get_curbe_size_cb**)dlsym(dlhInterp, "gbe_kernel_get_curbe_size");
+    if (gbe_kernel_get_curbe_size == NULL)
+      return false;
+
+    gbe_kernel_get_stack_size = *(gbe_kernel_get_stack_size_cb**)dlsym(dlhInterp, "gbe_kernel_get_stack_size");
+    if (gbe_kernel_get_stack_size == NULL)
+      return false;
+
+    gbe_kernel_get_scratch_size = *(gbe_kernel_get_scratch_size_cb**)dlsym(dlhInterp, "gbe_kernel_get_scratch_size");
+    if (gbe_kernel_get_scratch_size == NULL)
+      return false;
+
+    gbe_kernel_get_required_work_group_size = *(gbe_kernel_get_required_work_group_size_cb**)dlsym(dlhInterp, "gbe_kernel_get_required_work_group_size");
+    if (gbe_kernel_get_required_work_group_size == NULL)
+      return false;
+
+    gbe_kernel_use_slm = *(gbe_kernel_use_slm_cb**)dlsym(dlhInterp, "gbe_kernel_use_slm");
+    if (gbe_kernel_use_slm == NULL)
+      return false;
+
+    gbe_kernel_get_slm_size = *(gbe_kernel_get_slm_size_cb**)dlsym(dlhInterp, "gbe_kernel_get_slm_size");
+    if (gbe_kernel_get_slm_size == NULL)
+      return false;
+
+    gbe_kernel_get_sampler_size = *(gbe_kernel_get_sampler_size_cb**)dlsym(dlhInterp, "gbe_kernel_get_sampler_size");
+    if (gbe_kernel_get_sampler_size == NULL)
+      return false;
+
+    gbe_kernel_get_sampler_data = *(gbe_kernel_get_sampler_data_cb**)dlsym(dlhInterp, "gbe_kernel_get_sampler_data");
+    if (gbe_kernel_get_sampler_data == NULL)
+      return false;
+
+    gbe_kernel_get_compile_wg_size = *(gbe_kernel_get_compile_wg_size_cb**)dlsym(dlhInterp, "gbe_kernel_get_compile_wg_size");
+    if (gbe_kernel_get_compile_wg_size == NULL)
+      return false;
+
+    gbe_kernel_get_image_size = *(gbe_kernel_get_image_size_cb**)dlsym(dlhInterp, "gbe_kernel_get_image_size");
+    if (gbe_kernel_get_image_size == NULL)
+      return false;
+
+    gbe_kernel_get_image_data = *(gbe_kernel_get_image_data_cb**)dlsym(dlhInterp, "gbe_kernel_get_image_data");
+    if (gbe_kernel_get_image_data == NULL)
+      return false;
+
+    gbe_set_image_base_index_interp = *(gbe_set_image_base_index_cb**)dlsym(dlhInterp, "gbe_set_image_base_index_interp");
+    if (gbe_set_image_base_index_interp == NULL)
+      return false;
+
+    gbe_get_image_base_index = *(gbe_get_image_base_index_cb**)dlsym(dlhInterp, "gbe_get_image_base_index");
+    if (gbe_get_image_base_index == NULL)
+      return false;
+
+    return true;
+  }
+
+  void LoadCompiler()
+  {
+    compilerLoaded = false;
 
     const char* nonCompiler = getenv("OCL_NON_COMPILER");
     if (nonCompiler != NULL) {
@@ -35,47 +217,52 @@ struct GbeLoaderInitializer
     if (gbePath == NULL)
       gbePath = GBE_OBJECT_DIR;
 
-    dlh = dlopen(gbePath, RTLD_LAZY | RTLD_LOCAL | RTLD_DEEPBIND);
-    if (dlh != NULL) {
-      gbe_program_new_from_source = *(gbe_program_new_from_source_cb **)dlsym(dlh, "gbe_program_new_from_source");
-      if (gbe_program_new_from_source == NULL)
+    dlhCompiler = dlopen(gbePath, RTLD_LAZY | RTLD_LOCAL);
+    if (dlhCompiler != NULL) {
+      compiler_program_new_from_source = *(gbe_program_new_from_source_cb **)dlsym(dlhCompiler, "gbe_program_new_from_source");
+      if (compiler_program_new_from_source == NULL)
         return;
 
-      gbe_program_serialize_to_binary = *(gbe_program_serialize_to_binary_cb **)dlsym(dlh, "gbe_program_serialize_to_binary");
-      if (gbe_program_serialize_to_binary == NULL)
+      compiler_program_serialize_to_binary = *(gbe_program_serialize_to_binary_cb **)dlsym(dlhCompiler, "gbe_program_serialize_to_binary");
+      if (compiler_program_serialize_to_binary == NULL)
         return;
 
-      gbe_program_new_from_llvm = *(gbe_program_new_from_llvm_cb **)dlsym(dlh, "gbe_program_new_from_llvm");
-      if (gbe_program_new_from_llvm == NULL)
+      compiler_program_new_from_llvm = *(gbe_program_new_from_llvm_cb **)dlsym(dlhCompiler, "gbe_program_new_from_llvm");
+      if (compiler_program_new_from_llvm == NULL)
         return;
 
       //gbe_kernel_set_const_buffer_size is not used by runttime
-      gbe_kernel_set_const_buffer_size = *(gbe_kernel_set_const_buffer_size_cb **)dlsym(dlh, "gbe_kernel_set_const_buffer_size");
-      if (gbe_kernel_set_const_buffer_size == NULL)
+      compiler_kernel_set_const_buffer_size = *(gbe_kernel_set_const_buffer_size_cb **)dlsym(dlhCompiler, "gbe_kernel_set_const_buffer_size");
+      if (compiler_kernel_set_const_buffer_size == NULL)
         return;
 
-      gbe_set_image_base_index_compiler = *(gbe_set_image_base_index_cb **)dlsym(dlh, "gbe_set_image_base_index_compiler");
-      if (gbe_set_image_base_index_compiler == NULL)
+      compiler_set_image_base_index_compiler = *(gbe_set_image_base_index_cb **)dlsym(dlhCompiler, "gbe_set_image_base_index_compiler");
+      if (compiler_set_image_base_index_compiler == NULL)
         return;
 
-      inited = true;
+      compilerLoaded = true;
     }
   }
 
-  ~GbeLoaderInitializer() {
-    if (dlh != NULL)
-      dlclose(dlh);
+  ~GbeLoaderInitializer()
+  {
+    if (dlhCompiler != NULL)
+      dlclose(dlhCompiler);
+
+    if (dlhInterp != NULL)
+      dlclose(dlhInterp);
   }
 
-  bool inited;
-  void *dlh;
+  bool compilerLoaded;
+  void *dlhCompiler;
+  void *dlhInterp;
 };
 
 static struct GbeLoaderInitializer gbeLoader;
 
 int CompilerSupported()
 {
-  if (gbeLoader.inited)
+  if (gbeLoader.compilerLoaded)
     return 1;
   else
     return 0;
diff --git a/src/cl_gbe_loader.h b/src/cl_gbe_loader.h
index 50ec55b..be088f4 100644
--- a/src/cl_gbe_loader.h
+++ b/src/cl_gbe_loader.h
@@ -24,6 +24,11 @@
 #ifdef __cplusplus
 extern "C" {
 #endif
+extern gbe_program_new_from_source_cb *compiler_program_new_from_source;
+extern gbe_program_serialize_to_binary_cb *compiler_program_serialize_to_binary;
+extern gbe_program_new_from_llvm_cb *compiler_program_new_from_llvm;
+extern gbe_kernel_set_const_buffer_size_cb *compiler_kernel_set_const_buffer_size;
+extern gbe_set_image_base_index_cb *compiler_set_image_base_index_compiler;
 int CompilerSupported();
 #ifdef __cplusplus
 }
diff --git a/src/cl_program.c b/src/cl_program.c
index c4e85d1..af9d21e 100644
--- a/src/cl_program.c
+++ b/src/cl_program.c
@@ -226,7 +226,7 @@ cl_program_create_from_llvm(cl_context ctx,
   INVALID_VALUE_IF (file_name == NULL);
 
   program = cl_program_new(ctx);
-  program->opaque = gbe_program_new_from_llvm(ctx->device->vendor_id, file_name, program->build_log_max_sz, program->build_log, &program->build_log_sz, 1);
+  program->opaque = compiler_program_new_from_llvm(ctx->device->vendor_id, file_name, program->build_log_max_sz, program->build_log, &program->build_log_sz, 1);
   if (UNLIKELY(program->opaque == NULL)) {
     err = CL_INVALID_PROGRAM;
     goto error;
@@ -332,7 +332,7 @@ cl_program_build(cl_program p, const char *options)
       goto error;
     }
 
-    p->opaque = gbe_program_new_from_source(p->ctx->device->vendor_id, p->source, p->build_log_max_sz, options, p->build_log, &p->build_log_sz);
+    p->opaque = compiler_program_new_from_source(p->ctx->device->vendor_id, p->source, p->build_log_max_sz, options, p->build_log, &p->build_log_sz);
     if (UNLIKELY(p->opaque == NULL)) {
       if (p->build_log_sz > 0 && strstr(p->build_log, "error: error reading 'options'"))
         err = CL_INVALID_BUILD_OPTIONS;
diff --git a/src/intel/intel_driver.c b/src/intel/intel_driver.c
index d2a477d..dcd19ac 100644
--- a/src/intel/intel_driver.c
+++ b/src/intel/intel_driver.c
@@ -411,7 +411,7 @@ cl_intel_driver_new(cl_context_prop props)
    * Notify the gbe this base index, thus gbe can avoid conflicts
    * when it allocates slots for images*/
   if (CompilerSupported())
-    gbe_set_image_base_index_compiler(3);
+    compiler_set_image_base_index_compiler(3);
   gbe_set_image_base_index_interp(3);
 exit:
   return driver;
diff --git a/utests/setenv.sh.in b/utests/setenv.sh.in
index 95f468b..b0f575f 100644
--- a/utests/setenv.sh.in
+++ b/utests/setenv.sh.in
@@ -4,3 +4,4 @@ export OCL_PCM_PATH=@LOCAL_PCM_OBJECT_DIR@
 export OCL_PCH_PATH=@LOCAL_PCH_OBJECT_DIR@
 export OCL_KERNEL_PATH=@CMAKE_CURRENT_SOURCE_DIR@/../kernels
 export OCL_GBE_PATH=@LOCAL_GBE_OBJECT_DIR@
+export OCL_INTERP_PATH=@LOCAL_INTERP_OBJECT_DIR@