nsh_mmcmds: support "memdump -h/help" to show usage and sequence number

CV-Bowen · xiaoxiang781216 · commit 2a08d17ed685 · 2024-01-06T04:34:27.000-08:00
Compare with "cat /proc/memdump", use "memdump -h/help" is more
convenient.

Signed-off-by: Bowen Wang &lt;wangbowen6@xiaomi.com&gt;
diff --git a/nshlib/nsh_mmcmds.c b/nshlib/nsh_mmcmds.c
@@ -63,6 +63,12 @@ int cmd_memdump(FAR struct nsh_vtbl_s *vtbl, int argc, FAR char **argv)
     {
       strlcpy(arg, "used", CONFIG_NSH_LINELEN);
     }
+  else if (argc >= 2 && (strcmp(argv[1], "-h") == 0 ||
+                         strcmp(argv[1], "help") == 0))
+    {
+      return nsh_catfile(vtbl, argv[0],
+                         CONFIG_NSH_PROC_MOUNTPOINT "/memdump");
+    }
   else
     {
       for (i = 1; i < argc; i++)

Original file line number	Diff line number	Diff line change
`@@ -63,6 +63,12 @@ int cmd_memdump(FAR struct nsh_vtbl_s vtbl, int argc, FAR char *argv)`
`63`	`63`	`{`
`64`	`64`	`strlcpy(arg, "used", CONFIG_NSH_LINELEN);`
`65`	`65`	`}`
	`66`	`+ else if (argc >= 2 && (strcmp(argv[1], "-h") == 0 \|\|`
	`67`	`+ strcmp(argv[1], "help") == 0))`
	`68`	`+ {`
	`69`	`+ return nsh_catfile(vtbl, argv[0],`
	`70`	`+ CONFIG_NSH_PROC_MOUNTPOINT "/memdump");`
	`71`	`+ }`
`66`	`72`	`else`
`67`	`73`	`{`
`68`	`74`	`for (i = 1; i < argc; i++)`