esp32: disable stack protector for startup code (CMake)

Files where stack protector is initialized should not be compiled with
stack protector enabled. This was done for Make but missing for CMake.

Fixes https://github.com/espressif/esp-idf/issues/2990.

diff --git a/components/esp32/CMakeLists.txt b/components/esp32/CMakeLists.txt
index dfbd4b2c960fe79f2a84afde25058cd505702e6b..36ccbd55ed80925af0f5a22554dccf4a2ec612f1 100644 (file)
--- a/components/esp32/CMakeLists.txt
+++ b/components/esp32/CMakeLists.txt
@@ -153,4 +153,10 @@ else()
     if(esp32_test IN_LIST BUILD_TEST_COMPONENTS)
         add_definitions(-DESP_TIMER_DYNAMIC_OVERFLOW_VAL)
     endif()
+
+    # disable stack protection in files which are involved in initialization of that feature
+    set_source_files_properties(
+        stack_check.c cpu_start.c
+        PROPERTIES COMPILE_FLAGS
+        -fno-stack-protector)
 endif()