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From b13ae86ed0df158d2d4fed826ced5472bf104543 Mon Sep 17 00:00:00 2001
From: Justus Winter <4winter@informatik.uni-hamburg.de>
Date: Sat, 13 Sep 2014 01:27:46 +0200
Subject: [PATCH 2/3] ddb: add db_check_task_address_valid
* ddb/db_task_thread.c (db_check_task_address_valid): New function.
* ddb/db_task_thread.h (db_check_task_address_valid): New declaration.
---
ddb/db_task_thread.c | 14 ++++++++++++++
ddb/db_task_thread.h | 1 +
2 files changed, 15 insertions(+)
diff --git a/ddb/db_task_thread.c b/ddb/db_task_thread.c
index edab17e..97c81c8 100644
--- a/ddb/db_task_thread.c
+++ b/ddb/db_task_thread.c
@@ -135,6 +135,20 @@ db_lookup_thread(target_thread)
}
/*
+ * check the address is a valid task address
+ */
+boolean_t
+db_check_task_address_valid(const task_t task)
+{
+ if (db_lookup_task(task) < 0) {
+ db_printf("Bad task address 0x%x\n", task);
+ db_flush_lex();
+ return(FALSE);
+ } else
+ return(TRUE);
+}
+
+/*
* check the address is a valid thread address
*/
boolean_t
diff --git a/ddb/db_task_thread.h b/ddb/db_task_thread.h
index cbb3680..18f1957 100644
--- a/ddb/db_task_thread.h
+++ b/ddb/db_task_thread.h
@@ -46,6 +46,7 @@ extern thread_t db_default_thread; /* default target thread */
extern int db_lookup_task(const task_t);
extern int db_lookup_thread(const thread_t);
extern int db_lookup_task_thread(const task_t, const thread_t);
+extern boolean_t db_check_task_address_valid(const task_t);
extern boolean_t db_check_thread_address_valid(const thread_t);
extern boolean_t db_get_next_thread(thread_t *, int);
extern void db_init_default_thread(void);
--
2.1.0
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