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kdb_main: fix help print

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The help command was chopping all the usage instructions such that
they were not readable.

Example:

bta             [D|R|S|T|C|Z|E|U|I| Backtrace all processes matching state flag
per_cpu         <sym> [<bytes>] [<c Display per_cpu variables

Where as it should look like:

bta             [D|R|S|T|C|Z|E|U|I|M|A]
                                    Backtrace all processes matching state flag
per_cpu         <sym> [<bytes>] [<cpu>]
                                    Display per_cpu variables

All that is needed is to check the how long the cmd_usage is and jump
to the next line when appropriate.

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
This commit is contained in:
Jason Wessel 2013-02-04 09:52:14 -06:00
parent 4eb7a66d94
commit 074604af21
1 changed files with 7 additions and 3 deletions
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10
kernel/debug/kdb/kdb_main.c
View file

@ -2442,11 +2442,15 @@ static int kdb_help(int argc, const char **argv)
kdb_printf("-----------------------------" kdb_printf("-----------------------------"
"-----------------------------\n"); "-----------------------------\n");
for_each_kdbcmd(kt, i) { for_each_kdbcmd(kt, i) {
if (kt->cmd_name) char *space = "";
kdb_printf("%-15.15s %-20.20s %s\n", kt->cmd_name,
kt->cmd_usage, kt->cmd_help);
if (KDB_FLAG(CMD_INTERRUPT)) if (KDB_FLAG(CMD_INTERRUPT))
return 0; return 0;
if (!kt->cmd_name)
continue;
if (strlen(kt->cmd_usage) > 20)
space = "\n ";
kdb_printf("%-15.15s %-20s%s%s\n", kt->cmd_name,
kt->cmd_usage, space, kt->cmd_help);
} }
return 0; return 0;
} }