Upload: Generate GDB command line gdbinit for multiple application

This enables generating GDB command line gdbinit file for single project
multiple application scenario. For this change, mbed_finalize_build needs to
pass <app> target name, or warning pops up.

Author: ccli8

tools/cmake/mbed_ide_debug_cfg_generator.cmake

@@ -86,7 +86,7 @@ if(MBED_GENERATE_CLION_DEBUG_CFGS)
 ")
 	endfunction(mbed_generate_ide_debug_configuration)
 
-	function(mbed_finalize_ide_debug_configurations)
+	function(mbed_finalize_ide_debug_configurations CMAKE_TARGET)
 		# Don't need to do anything
 	endfunction(mbed_finalize_ide_debug_configurations)
 
@@ -163,7 +163,7 @@ elseif(MBED_GENERATE_VS_CODE_DEBUG_CFGS)
 	endfunction(mbed_generate_ide_debug_configuration)
 
 	# Take all generated debug configurations and write them to launch.json.
-	function(mbed_finalize_ide_debug_configurations)
+	function(mbed_finalize_ide_debug_configurations CMAKE_TARGET)
 
 		set(VSCODE_LAUNCH_JSON_PATH ${CMAKE_SOURCE_DIR}/.vscode/launch.json)
 
@@ -246,15 +246,14 @@ elseif(MBED_UPLOAD_SUPPORTS_DEBUG)
 			add_custom_target(debug-${target}
 				COMMENT "Starting GDB to debug ${target}..."
 				COMMAND ${MBED_GDB}
-				--command=${CMAKE_BINARY_DIR}/mbed-cmake.gdbinit
+				--command=${CMAKE_BINARY_DIR}/mbed-cmake$<$<BOOL:${CMAKE_TARGET}>:-${CMAKE_TARGET}>.gdbinit
 				$<TARGET_FILE:${target}>
 				USES_TERMINAL)
 			endif()
 
 	endfunction(mbed_generate_ide_debug_configuration)
 
-	function(mbed_finalize_ide_debug_configurations)
-
+	function(mbed_finalize_ide_debug_configurations CMAKE_TARGET)
 		# create init file for GDB client
 		if(MBED_UPLOAD_WANTS_EXTENDED_REMOTE)
 			set(UPLOAD_GDB_REMOTE_KEYWORD "extended-remote")
@@ -264,7 +263,7 @@ elseif(MBED_UPLOAD_SUPPORTS_DEBUG)
 
 		list(JOIN MBED_UPLOAD_LAUNCH_COMMANDS "\n" MBED_UPLOAD_LAUNCH_COMMANDS_FOR_GDBINIT)
 
-		file(GENERATE OUTPUT ${CMAKE_BINARY_DIR}/mbed-cmake.gdbinit CONTENT
+		file(GENERATE OUTPUT ${CMAKE_BINARY_DIR}/mbed-cmake$<$<BOOL:${CMAKE_TARGET}>:-${CMAKE_TARGET}>.gdbinit CONTENT
 "# connect to GDB server
 target ${UPLOAD_GDB_REMOTE_KEYWORD} 127.0.0.1:${GDB_PORT}
 ${MBED_UPLOAD_LAUNCH_COMMANDS_FOR_GDBINIT}
@@ -285,7 +284,7 @@ else()
 	function(mbed_generate_ide_debug_configuration CMAKE_TARGET)
 	endfunction()
 
-	function(mbed_finalize_ide_debug_configurations)
+	function(mbed_finalize_ide_debug_configurations CMAKE_TARGET)
 	endfunction()
 
 endif()

tools/cmake/mbed_target_functions.cmake

@@ -188,8 +188,16 @@ endfunction()
 # Call this at the very end of the build script.  Does some final cleanup tasks such as
 # writing out debug configurations.
 #
+# 1st arg: <app> cmake target name
+#
 function(mbed_finalize_build)
-    mbed_finalize_ide_debug_configurations()
+    if("${ARGN}" STREQUAL "")
+        message(WARNING "Invoke mbed_finalize_build(<app>_target_name) for single project multiple application scenario")
+        mbed_finalize_ide_debug_configurations("")
+    else()
+        set(CMAKE_TARGET ${ARGV0})
+        mbed_finalize_ide_debug_configurations(${CMAKE_TARGET})
+    endif()
 endfunction(mbed_finalize_build)
 
 # Lists that mbed_disable_mcu_target_file stores data in