[Crash-utility] [PATCH] add clear command
Add the clear command for crash.
Use it to clear the screen.
Signed-off-by: Huang Shijie <shijie(a)os.amperecomputing.com>
---
This is just for tool "crash".
---
defs.h | 2 ++
global_data.c | 1 +
help.c | 8 ++++++++
tools.c | 9 +++++++++
4 files changed, 20 insertions(+)
diff --git a/defs.h b/defs.h
index 96a7a2a..a72aa69 100644
--- a/defs.h
+++ b/defs.h
@@ -5283,6 +5283,7 @@ void cmd_test(void); /* test.c */
void cmd_ascii(void); /* tools.c */
void cmd_sbitmapq(void); /* sbitmap.c */
void cmd_bpf(void); /* bfp.c */
+void cmd_clear(void); /* tools.c */
void cmd_set(void); /* tools.c */
void cmd_eval(void); /* tools.c */
void cmd_list(void); /* tools.c */
@@ -5883,6 +5884,7 @@ extern char *help_ascii[];
extern char *help_bpf[];
extern char *help_bt[];
extern char *help_btop[];
+extern char *help_clear[];
extern char *help_dev[];
extern char *help_dis[];
extern char *help_eval[];
diff --git a/global_data.c b/global_data.c
index f9bb7d0..2157e8c 100644
--- a/global_data.c
+++ b/global_data.c
@@ -75,6 +75,7 @@ struct command_table_entry linux_command_table[] = {
{"bpf", cmd_bpf, help_bpf, 0},
{"bt", cmd_bt, help_bt, REFRESH_TASK_TABLE},
{"btop", cmd_btop, help_btop, 0},
+ {"clear", cmd_clear, help_clear, 0},
{"dev", cmd_dev, help_dev, 0},
{"dis", cmd_dis, help_dis, MINIMAL},
{"eval", cmd_eval, help_eval, MINIMAL},
diff --git a/help.c b/help.c
index cc7ab20..04284e5 100644
--- a/help.c
+++ b/help.c
@@ -2293,6 +2293,14 @@ char *help_btop[] = {
NULL
};
+char *help_clear[] = {
+"clear",
+"Clear the screen",
+" ",
+"Used to clear the screen",
+NULL
+};
+
char *help_extend[] = {
"extend",
"extend the %s command set",
diff --git a/tools.c b/tools.c
index 0f2db10..96c8dbe 100644
--- a/tools.c
+++ b/tools.c
@@ -1783,6 +1783,15 @@ mkstring(char *s, int size, ulong flags, const char *opt)
return(s);
}
+/*
+ * Clear the screen.
+ */
+void
+cmd_clear(void)
+{
+ system("clear");
+}
+
/*
* Prints the requested number of BACKSPACE characters.
*/
--
2.39.2