diff --git a/compiler-rt/test/fuzzer/CMakeLists.txt b/compiler-rt/test/fuzzer/CMakeLists.txt
--- a/compiler-rt/test/fuzzer/CMakeLists.txt
+++ b/compiler-rt/test/fuzzer/CMakeLists.txt
@@ -58,11 +58,14 @@
 
     string(TOUPPER ${arch} ARCH_UPPER_CASE)
     set(CONFIG_NAME ${ARCH_UPPER_CASE}${STDLIB_CAPITALIZED}${OS_NAME}Config)
+    set(LIBFUZZER_TEST_EXEC_DIR ${CMAKE_CURRENT_BINARY_DIR}/${CONFIG_NAME})
 
     # LIT-based libFuzzer tests.
     configure_lit_site_cfg(
       ${CMAKE_CURRENT_SOURCE_DIR}/lit.site.cfg.py.in
-      ${CMAKE_CURRENT_BINARY_DIR}/${CONFIG_NAME}/lit.site.cfg.py
+      ${LIBFUZZER_TEST_EXEC_DIR}/lit.site.cfg.py
+      MAIN_CONFIG
+      ${CMAKE_CURRENT_SOURCE_DIR}/lit.cfg.py
       )
 
     add_lit_testsuite(check-fuzzer-${stdlib_name}-${arch}
diff --git a/compiler-rt/test/fuzzer/lit.site.cfg.py.in b/compiler-rt/test/fuzzer/lit.site.cfg.py.in
--- a/compiler-rt/test/fuzzer/lit.site.cfg.py.in
+++ b/compiler-rt/test/fuzzer/lit.site.cfg.py.in
@@ -12,6 +12,7 @@
 config.llvm_library_dir = "@LLVM_LIBRARY_DIR@"
 config.target_triple = "@TARGET_TRIPLE@"
 config.target_arch = "@LIBFUZZER_TEST_TARGET_ARCH@"
+config.test_exec_root = "@LIBFUZZER_TEST_EXEC_DIR@"
 
 # Load common config for all compiler-rt lit tests.
 lit_config.load_config(config,
diff --git a/compiler-rt/test/profile/CMakeLists.txt b/compiler-rt/test/profile/CMakeLists.txt
--- a/compiler-rt/test/profile/CMakeLists.txt
+++ b/compiler-rt/test/profile/CMakeLists.txt
@@ -16,9 +16,12 @@
   set(PROFILE_TEST_TARGET_ARCH ${arch})
   get_test_cc_for_arch(${arch} PROFILE_TEST_TARGET_CC PROFILE_TEST_TARGET_CFLAGS)
   set(CONFIG_NAME Profile-${arch})
+  set(LIBFUZZER_TEST_EXEC_DIR ${CMAKE_CURRENT_BINARY_DIR}/${CONFIG_NAME})
   configure_lit_site_cfg(
     ${CMAKE_CURRENT_SOURCE_DIR}/lit.site.cfg.py.in
-    ${CMAKE_CURRENT_BINARY_DIR}/${CONFIG_NAME}/lit.site.cfg.py
+    ${LIBFUZZER_TEST_EXEC_DIR}/lit.site.cfg.py
+    MAIN_CONFIG
+    ${CMAKE_CURRENT_SOURCE_DIR}/lit.cfg.py
    )
   list(APPEND PROFILE_TESTSUITES ${CMAKE_CURRENT_BINARY_DIR}/${CONFIG_NAME})
 endforeach()