command.h: Add a U_BOOT_LONGHELP macro

In order to be able to discard unused long help texts without further linker lists, add a macro for defining the long help messages which uses __maybe_unused. This allows us to discard them as unreferenced as part of the link. Signed-off-by: Tom Rini <[email protected]> Reviewed-by: Simon Glass <[email protected]>
omniosorg · Oct 16, 2023 · dec5777 · dec5777
1 parent ef3ceb2
commit dec5777
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/include/command.h b/include/command.h
@@ -328,6 +328,9 @@ int cmd_source_script(ulong addr, const char *fit_uname, const char *confname);
 # define _CMD_HELP(x)
 #endif
 
+#define U_BOOT_LONGHELP(_cmdname, text)					\
+	static __maybe_unused const char _cmdname##_help_text[] = text
+
 #define U_BOOT_SUBCMDS_DO_CMD(_cmdname)					\
 	static int do_##_cmdname(struct cmd_tbl *cmdtp, int flag,	\
 				 int argc, char *const argv[],		\