* better error message

compiler/msg/errore.msg

@@ -3000,7 +3000,7 @@ asmw_e_illegal_use_of_sp=08036_E_Asm: ESP/RSP cannot be used as index register
 #
 # Executing linker/assembler
 #
-# 09035 is the last used one
+# 09036 is the last used one
 #
 # BeginOfTeX
 %
@@ -3061,9 +3061,6 @@ exec_e_exe_not_supported=09018_E_Creation of Executables not supported
 exec_e_dll_not_supported=09019_E_Creation of Dynamic/Shared Libraries not supported
 % Creating dynamically loadable libraries is not supported for this platform, because it was
 % not yet implemented in the compiler.
-exec_e_static_lib_not_supported=09035_E_Creation of Static Libraries not supported
-% Creating static libraries is not supported for this platform, because it was
-% not yet implemented in the compiler.
 exec_i_closing_script=09020_I_Closing script $1
 % Informational message showing when writing of the external assembling and linking script is finished.
 exec_e_res_not_found=09021_E_Resource compiler "$1" not found, switching to external mode
@@ -3101,6 +3098,12 @@ exec_w_init_file_not_found=09034_W_"$1" not found, this will probably cause a li
 % If the system has gcc installed, running \var{gcc --print-file-name <filename>} might return the path to the file.
 % Add this path in your \var{fpc.cfg} using the switch \var{-Fl} to fix this error. This requires though,
 % that gcc targets the same target as FPC.
+exec_e_static_lib_not_supported=09035_E_Creation of Static Libraries not supported
+% Creating static libraries is not supported for this platform, because it was
+% not yet implemented in the compiler.
+exec_f_controllertype_expected=09036_F_To generate the correct linker call, a controller type must be set by the directive -Wp
+% Xtensa micro controller require a detailed specification linker command which depends on the target controller.
+% If no target controller is set, this command cannot be build and thus linking cannot be carried out.
 %
 %\end{description}
 # EndOfTeX

compiler/msgidx.inc

@@ -920,7 +920,6 @@ const
   exec_t_using_util=09017;
   exec_e_exe_not_supported=09018;
   exec_e_dll_not_supported=09019;
-  exec_e_static_lib_not_supported=09035;
   exec_i_closing_script=09020;
   exec_e_res_not_found=09021;
   exec_i_compilingresource=09022;
@@ -936,6 +935,8 @@ const
   exec_e_cant_write_resource_file=09032;
   exec_n_backquote_cat_file_not_found=09033;
   exec_w_init_file_not_found=09034;
+  exec_e_static_lib_not_supported=09035;
+  exec_f_controllertype_expected=09036;
   execinfo_f_cant_process_executable=09128;
   execinfo_f_cant_open_executable=09129;
   execinfo_x_codesize=09130;
@@ -1146,7 +1147,7 @@ const
   option_info=11024;
   option_help_pages=11025;
 
-  MsgTxtSize = 88875;
+  MsgTxtSize = 88971;
 
   MsgIdxMax : array[1..20] of longint=(
     28,109,361,131,99,63,148,37,223,69,

compiler/systems/t_freertos.pas

@@ -1169,7 +1169,9 @@ begin
   {$pop}
 
   binstr:='gcc';
-  if (current_settings.controllertype = ct_esp32) then
+  if current_settings.controllertype = ct_none then
+    Message(exec_f_controllertype_expected)
+  else if current_settings.controllertype = ct_esp32 then
     cmdstr:='-C -P -x c -E -o esp32_out.ld -I . $IDF_PATH/components/esp32/ld/esp32.ld'
   else
     cmdstr:='-C -P -x c -E -o esp8266_out.ld -I . $IDF_PATH/components/esp8266/ld/esp8266.ld';