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authorSimon Glass <sjg@chromium.org>2016-03-13 19:07:33 -0600
committerTom Rini <trini@konsulko.com>2016-03-22 12:16:10 -0400
commitfb24112c19f1544129af938bb415b04241482f07 (patch)
tree9d59cc93977fabeeecf28cb6deda24b4cc1006a0
parent045e6f0d4f49c83375cd30b35fb7f02d7a79478e (diff)
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Allow command code to compile to nothing
When CONFIG_CMDLINE is disabled we need to remove all the command-line code. Most can be removed by dropping the appropriate linker lists from the images, but sub-commands must be dealt with specially. A simple mechanism is used to avoid 'unused static function' errors. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
-rw-r--r--include/command.h31
1 files changed, 27 insertions, 4 deletions
diff --git a/include/command.h b/include/command.h
index 0524c0b..0e0470b 100644
--- a/include/command.h
+++ b/include/command.h
@@ -164,21 +164,44 @@ void fixup_cmdtable(cmd_tbl_t *cmdtp, int size);
# define _CMD_HELP(x)
#endif
+#ifdef CONFIG_CMDLINE
#define U_BOOT_CMD_MKENT_COMPLETE(_name, _maxargs, _rep, _cmd, \
_usage, _help, _comp) \
{ #_name, _maxargs, _rep, _cmd, _usage, \
_CMD_HELP(_help) _CMD_COMPLETE(_comp) }
-#define U_BOOT_CMD_MKENT(_name, _maxargs, _rep, _cmd, _usage, _help) \
- U_BOOT_CMD_MKENT_COMPLETE(_name, _maxargs, _rep, _cmd, \
- _usage, _help, NULL)
-
#define U_BOOT_CMD_COMPLETE(_name, _maxargs, _rep, _cmd, _usage, _help, _comp) \
ll_entry_declare(cmd_tbl_t, _name, cmd) = \
U_BOOT_CMD_MKENT_COMPLETE(_name, _maxargs, _rep, _cmd, \
_usage, _help, _comp);
+#else
+#define U_BOOT_SUBCMD_START(name) static cmd_tbl_t name[] = {};
+#define U_BOOT_SUBCMD_END
+
+#define _CMD_REMOVE(_name, _cmd) \
+ int __remove_ ## _name(void) \
+ { \
+ if (0) \
+ _cmd(NULL, 0, 0, NULL); \
+ return 0; \
+ }
+#define U_BOOT_CMD_MKENT_COMPLETE(_name, _maxargs, _rep, _cmd, _usage, \
+ _help, _comp) \
+ { #_name, _maxargs, _rep, 0 ? _cmd : NULL, _usage, \
+ _CMD_HELP(_help) _CMD_COMPLETE(_comp) }
+
+#define U_BOOT_CMD_COMPLETE(_name, _maxargs, _rep, _cmd, _usage, _help, \
+ _comp) \
+ _CMD_REMOVE(sub_ ## _name, _cmd)
+
+#endif /* CONFIG_CMDLINE */
+
#define U_BOOT_CMD(_name, _maxargs, _rep, _cmd, _usage, _help) \
U_BOOT_CMD_COMPLETE(_name, _maxargs, _rep, _cmd, _usage, _help, NULL)
+#define U_BOOT_CMD_MKENT(_name, _maxargs, _rep, _cmd, _usage, _help) \
+ U_BOOT_CMD_MKENT_COMPLETE(_name, _maxargs, _rep, _cmd, \
+ _usage, _help, NULL)
+
#endif /* __COMMAND_H */