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Commit 9674b2fa authored by Steven Rostedt (Red Hat)'s avatar Steven Rostedt (Red Hat) Committed by Steven Rostedt
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ftrace: Add trampolines to enabled_functions debug file 



The enabled_functions is used to help debug the dynamic function tracing.
Adding what trampolines are attached to files is useful for debugging.

Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
parent 79922b80

kernel/trace/ftrace.c

+14 −2
Original line number Diff line number Diff line
@@ -2903,10 +2903,22 @@ static int t_show(struct seq_file *m, void *v) 
		return 0;



	seq_printf(m, "%ps", (void *)rec->ip);

	if (iter->flags & FTRACE_ITER_ENABLED)

	if (iter->flags & FTRACE_ITER_ENABLED) {

		seq_printf(m, " (%ld)%s",

			   ftrace_rec_count(rec),

			   rec->flags & FTRACE_FL_REGS ? " R" : "  ");

		if (rec->flags & FTRACE_FL_TRAMP_EN) {

			struct ftrace_ops *ops;



			ops = ftrace_find_tramp_ops_curr(rec);

			if (ops && ops->trampoline)

				seq_printf(m, "\ttramp: %pS",

					   (void *)ops->trampoline);

			else

				seq_printf(m, "\ttramp: ERROR!");

		}

	}	



	seq_printf(m, "\n");



	return 0;