diff --git a/CMakeLists.txt b/CMakeLists.txt
index 12a463b122..9b3d385870 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -146,6 +146,11 @@ set(THEROCM_ROCM_SYSTEMS_SOURCE_DIR_DEFAULT "${THEROCK_SOURCE_DIR}/rocm-systems"
 set(THEROCK_ROCM_SYSTEMS_SOURCE_DIR "${THEROCM_ROCM_SYSTEMS_SOURCE_DIR_DEFAULT}" CACHE STRING "Path to rocm-systems superrepo")
 cmake_path(ABSOLUTE_PATH THEROCK_ROCM_SYSTEMS_SOURCE_DIR NORMALIZE)
 
+# Source configuration for ROCgdb.
+set(THEROCK_ROCGDB_SOURCE_DIR_DEFAULT "${THEROCK_SOURCE_DIR}/debug-tools/rocgdb/source")
+set(THEROCK_ROCGDB_SOURCE_DIR "${THEROCK_ROCGDB_SOURCE_DIR_DEFAULT}" CACHE STRING "Path to rocgdb's sources")
+cmake_path(ABSOLUTE_PATH THEROCK_ROCGDB_SOURCE_DIR NORMALIZE)
+
 # Allow to specify alternative source locations instead of using
 # repositories tracked in TheRock's `.gitmodules`.
 therock_enable_external_source("composable-kernel" "${THEROCK_SOURCE_DIR}/ml-libs/composable_kernel" OFF)
diff --git a/debug-tools/CMakeLists.txt b/debug-tools/CMakeLists.txt
index 4059c860e8..cb1c6a3aae 100644
--- a/debug-tools/CMakeLists.txt
+++ b/debug-tools/CMakeLists.txt
@@ -196,6 +196,10 @@ if(THEROCK_ENABLE_ROCGDB)
     message(WARNING "No Python with shared libpython found. rocgdb will be built without Python support.")
   endif()
 
+  if(NOT ${THEROCK_ROCGDB_SOURCE_DIR} STREQUAL ${THEROCK_ROCGDB_SOURCE_DIR_DEFAULT})
+    message(WARNING "Configuring ROCgdb with modified source directory: ${THEROCK_ROCGDB_SOURCE_DIR}")
+  endif()
+
   therock_cmake_subproject_declare(rocgdb
     USE_DIST_AMDGPU_TARGETS
     EXTERNAL_SOURCE_DIR "rocgdb"
@@ -206,6 +210,7 @@ if(THEROCK_ENABLE_ROCGDB)
       "-DROCM_VERSION=${ROCM_MAJOR_VERSION}.${ROCM_MINOR_VERSION}.${ROCM_PATCH_VERSION}"
       "-DSHARED_PYTHON_EXECUTABLES=${_rocgdb_python_executables_escaped}"
       "-DTHEROCK_BUNDLE_SYSDEPS=${THEROCK_BUNDLE_SYSDEPS}"
+      "-DROCGDB_SOURCE_DIR=${THEROCK_ROCGDB_SOURCE_DIR}"
     COMPILER_TOOLCHAIN
       amd-llvm
     RUNTIME_DEPS
diff --git a/debug-tools/rocgdb/CMakeLists.txt b/debug-tools/rocgdb/CMakeLists.txt
index 723242861c..896d493b5e 100644
--- a/debug-tools/rocgdb/CMakeLists.txt
+++ b/debug-tools/rocgdb/CMakeLists.txt
@@ -50,6 +50,12 @@ project(rocgdb C CXX)
 include(ExternalProject)
 include(ProcessorCount)
 
+# Allow external rocgdb source directory.
+if(NOT ROCGDB_SOURCE_DIR)
+  set(ROCGDB_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/source")
+endif()
+message(STATUS "ROCgdb source directory: ${ROCGDB_SOURCE_DIR}")
+
 # Function to extract a single path that matches a given regex pattern
 # from a list of paths.
 #
@@ -229,7 +235,7 @@ macro(add_python_variant minor_version configure_flags libpython_dir)
         "LDFLAGS=${ALL_LDFLAGS}"
       --
       # The actual configure command.
-      ${CMAKE_CURRENT_SOURCE_DIR}/source/configure
+      ${ROCGDB_SOURCE_DIR}/configure
         "--prefix=${ROCGDB_INTERMEDIATE_INSTALL_DIR}"
         --program-prefix=roc
         "--program-transform-name=${ROCGDB_PROGRAM_TRANSFORM_STR}"
@@ -290,7 +296,7 @@ macro(add_python_variant minor_version configure_flags libpython_dir)
     COMMAND
       ${CMAKE_COMMAND} -E make_directory ${ROCGDB_INTERMEDIATE_INSTALL_DIR}/share/doc
     COMMAND
-      ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_SOURCE_DIR}/source/gdb/NOTICES.txt ${ROCGDB_INTERMEDIATE_INSTALL_DIR}/share/doc/
+      ${CMAKE_COMMAND} -E copy ${ROCGDB_SOURCE_DIR}/gdb/NOTICES.txt ${ROCGDB_INTERMEDIATE_INSTALL_DIR}/share/doc/
     # Rename rocgcore to rocgcore-py<python version>.
     COMMAND
       ${CMAKE_COMMAND} -E rename ${ROCGDB_INTERMEDIATE_INSTALL_DIR}/bin/rocgcore ${ROCGDB_INTERMEDIATE_INSTALL_DIR}/bin/rocgcore-py${minor_version}
@@ -604,7 +610,7 @@ if(BUILD_TESTING)
     # Get the directory part of the file.
     get_filename_component(file_dir ${rocgdb_file} DIRECTORY)
 
-    install(FILES ${CMAKE_CURRENT_SOURCE_DIR}/source/${rocgdb_file}
+    install(FILES ${ROCGDB_SOURCE_DIR}/${rocgdb_file}
       DESTINATION tests/rocgdb/${file_dir}
       COMPONENT tests)
   endforeach()
@@ -613,7 +619,7 @@ if(BUILD_TESTING)
     # Get the directory part of the file.
     get_filename_component(file_dir ${rocgdb_file} DIRECTORY)
 
-    install(PROGRAMS ${CMAKE_CURRENT_SOURCE_DIR}/source/${rocgdb_file}
+    install(PROGRAMS ${ROCGDB_SOURCE_DIR}/${rocgdb_file}
       DESTINATION tests/rocgdb/${file_dir}
       COMPONENT tests)
   endforeach()
@@ -626,7 +632,7 @@ if(BUILD_TESTING)
   )
 
   foreach(rocgdb_testsuite_dir ${ROCGDB_TESTSUITE_DIRS})
-    install(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/source/${rocgdb_testsuite_dir}
+    install(DIRECTORY ${ROCGDB_SOURCE_DIR}/${rocgdb_testsuite_dir}
       DESTINATION tests/rocgdb/gdb
       COMPONENT tests
       USE_SOURCE_PERMISSIONS)