docs: fix build issue requiring new location of cpu_start.c

docs/en/api-guides/freertos-smp.rst

@@ -499,8 +499,8 @@ ESP-IDF FreeRTOS configurations, see :doc:`FreeRTOS <../api-reference/kconfig>`
 
     :ref:`CONFIG_FREERTOS_UNICORE` will run ESP-IDF FreeRTOS only
     on **PRO_CPU**. Note that this is **not equivalent to running vanilla
-    FreeRTOS**. Behaviors of multiple components in ESP-IDF will be modified such
-    as :component_file:`esp32/cpu_start.c`. For more details regarding the
+    FreeRTOS**. Note that this option may affect behavior of components other than
+    :component:`freertos`. For more details regarding the
     effects of running ESP-IDF FreeRTOS on a single core, search for
     occurences of ``CONFIG_FREERTOS_UNICORE`` in the ESP-IDF components.
 

tools/ci/test_build_system_cmake.sh

@@ -74,7 +74,7 @@ function run_tests()
     take_build_snapshot
     touch ${IDF_PATH}/components/esp_system/port/cpu_start.c
     idf.py build || failure "Failed to partial build"
-    assert_rebuilt ${APP_BINS} esp-idf/esp_system/libesp_system.a esp-idf/esp-idf/esp_system/CMakeFiles/${IDF_COMPONENT_PREFIX}_esp_system.dir/port/cpu_start.c.obj
+    assert_rebuilt ${APP_BINS} esp-idf/esp_system/libesp_system.a esp-idf/esp_system/CMakeFiles/${IDF_COMPONENT_PREFIX}_esp_system.dir/port/cpu_start.c.obj
     assert_not_rebuilt esp-idf/lwip/liblwip.a esp-idf/freertos/libfreertos.a ${BOOTLOADER_BINS} ${PARTITION_BIN}
 
     print_status "Bootloader source file rebuilds bootloader"