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Diffstat (limited to 'include/linux/sched.h')
-rw-r--r--include/linux/sched.h21
1 files changed, 20 insertions, 1 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h
index bf953932e676..423830b6e6e9 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -96,6 +96,7 @@ struct exec_domain;
struct futex_pi_state;
struct robust_list_head;
struct bio;
+struct bts_tracer;
/*
* List of flags we want to share for kernel threads,
@@ -1176,6 +1177,18 @@ struct task_struct {
struct list_head ptraced;
struct list_head ptrace_entry;
+#ifdef CONFIG_X86_PTRACE_BTS
+ /*
+ * This is the tracer handle for the ptrace BTS extension.
+ * This field actually belongs to the ptracer task.
+ */
+ struct bts_tracer *bts;
+ /*
+ * The buffer to hold the BTS data.
+ */
+ void *bts_buffer;
+#endif /* CONFIG_X86_PTRACE_BTS */
+
/* PID/PID hash table linkage. */
struct pid_link pids[PIDTYPE_MAX];
struct list_head thread_group;
@@ -1367,7 +1380,7 @@ struct task_struct {
unsigned long default_timer_slack_ns;
struct list_head *scm_work_list;
-#ifdef CONFIG_FUNCTION_RET_TRACER
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
/* Index of current stored adress in ret_stack */
int curr_ret_stack;
/* Stack of return addresses for return function tracing */
@@ -1377,6 +1390,12 @@ struct task_struct {
* because of depth overrun.
*/
atomic_t trace_overrun;
+ /* Pause for the tracing */
+ atomic_t tracing_graph_pause;
+#endif
+#ifdef CONFIG_TRACING
+ /* state flags for use by tracers */
+ unsigned long trace;
#endif
};