cmake(enhance):add target we can dump all CMake lib targets

`cmake --build -t dump_targets`
list all lib target current generator need to build

Signed-off-by: xuxin19 <xuxin19@xiaomi.com>

cmake/nuttx_add_library.cmake

@@ -62,6 +62,12 @@ function(nuttx_add_library_internal target)
 
   # Set install config for all library
   install(TARGETS ${target})
+  # Set target information for debug and dump
+  set_property(
+    TARGET nuttx_target_interface
+    APPEND
+    PROPERTY ALL_TARGETS ${target})
+  file(APPEND ${CMAKE_CURRENT_BINARY_DIR}/targets "${target}\n")
 endfunction()
 
 # Auxiliary libraries

cmake/nuttx_extensions.cmake

@@ -28,6 +28,10 @@ include(nuttx_parse_function_args)
 # compiler options and include path needed by all apps libraries.
 add_custom_target(nuttx_apps_interface)
 
+# "nuttx_target_interface" is a source-less target that hold target information
+# for target debug and dump
+add_custom_target(nuttx_target_interface)
+
 # Macro: nuttx_library
 #
 # Creates a library target with the given name and mode. If MODE is "KERNEL", it
@@ -298,3 +302,14 @@ function(nuttx_link_libraries)
     endforeach()
   endif()
 endfunction()
+
+# dump targets information
+add_custom_target(
+  dump_targets
+  COMMAND ${CMAKE_COMMAND} -E remove target_dump
+  COMMAND ${CMAKE_COMMAND} -E echo
+          "'$<TARGET_PROPERTY:nuttx_target_interface,ALL_TARGETS>'"
+  COMMAND
+    ${CMAKE_COMMAND} -E echo
+    "'$<TARGET_PROPERTY:nuttx_target_interface,ALL_TARGETS>'" >> target_dump
+  WORKING_DIRECTORY ${CMAKE_BINARY_DIR})