CMake Bloaty add static ram usage breakout

.github/workflows/compile_nuttx.yml

@@ -123,6 +123,8 @@ jobs:
       run: make ${{matrix.config}} bloaty_symbols || true
     - name: make ${{matrix.config}} bloaty_templates
       run: make ${{matrix.config}} bloaty_templates || true
+    - name: make ${{matrix.config}} bloaty_ram
+      run: make ${{matrix.config}} bloaty_ram || true
     - name: make ${{matrix.config}} bloaty_compare_master
       run: make ${{matrix.config}} bloaty_compare_master || true
     - name: ccache post-run

Tools/bloaty_static_ram.bloaty

@@ -0,0 +1,13 @@
+custom_data_source: {
+  name: "bloaty_static_ram"
+  base_data_source: "sections"
+
+  rewrite: {
+    pattern: "^\\.bss"
+    replacement: "ram"
+  }
+  rewrite: {
+    pattern: "^\\.data"
+    replacement: "ram"
+  }
+}

cmake/bloaty.cmake

@@ -71,6 +71,13 @@ if (BLOATY_PROGRAM)
 		USES_TERMINAL
 		)
 
+	# bloaty statically allocated RAM
+	add_custom_target(bloaty_ram
+		COMMAND ${BLOATY_PROGRAM} -c ${PX4_SOURCE_DIR}/Tools/bloaty_static_ram.bloaty -d bloaty_static_ram,compileunits --source-filter ^ram$ ${BLOATY_OPTS} $<TARGET_FILE:px4>
+		DEPENDS px4
+		USES_TERMINAL
+		)
+
 	# bloaty compare with last master build
 	add_custom_target(bloaty_compare_master
 		COMMAND wget -c -N --no-verbose https://s3.amazonaws.com/px4-travis/Firmware/master/${PX4_BOARD_VENDOR}_${PX4_BOARD_MODEL}_${PX4_BOARD_LABEL}.elf -O master.elf