ci: add script to check section references

tools/test_apps/system/bootloader_sections/CMakeLists.txt

@@ -0,0 +1,17 @@
+# The following lines of boilerplate have to be in your project's
+# CMakeLists in this exact order for cmake to work correctly
+cmake_minimum_required(VERSION 3.5)
+
+include($ENV{IDF_PATH}/tools/cmake/project.cmake)
+project(test_build)
+
+add_custom_target(check_bootloader_sections ALL
+                  COMMAND ${PYTHON} $ENV{IDF_PATH}/tools/ci/check_callgraph.py
+                  --rtl-dir ${CMAKE_BINARY_DIR}/bootloader
+                  --elf-file ${CMAKE_BINARY_DIR}/bootloader/bootloader.elf
+                  find-refs
+                  --from-sections=.iram_loader.text
+                  --to-sections=.iram.text
+                  --exit-code
+                  DEPENDS bootloader
+                  )

tools/test_apps/system/bootloader_sections/main/CMakeLists.txt

@@ -0,0 +1,4 @@
+idf_component_register(SRCS "test_main.c"
+                       INCLUDE_DIRS ".")
+
+

tools/test_apps/system/bootloader_sections/main/test_main.c

@@ -0,0 +1,3 @@
+void app_main(void)
+{
+}

tools/test_apps/system/bootloader_sections/sdkconfig.ci.flash_encryption

@@ -0,0 +1,2 @@
+CONFIG_SECURE_FLASH_ENC_ENABLED=y
+CONFIG_SECURE_FLASH_ENCRYPTION_MODE_RELEASE=y

tools/test_apps/system/bootloader_sections/sdkconfig.defaults

@@ -0,0 +1 @@
+CONFIG_COMPILER_DUMP_RTL_FILES=y