ftrace/x86: Show trampoline call function in enabled_functions

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The file /sys/kernel/debug/tracing/eneabled_functions is used to debug
ftrace function hooks. Add to the output what function is being called
by the trampoline if the arch supports it.

Add support for this feature in x86_64.

Cc: H. Peter Anvin <hpa@linux.intel.com>
Tested-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Tested-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

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Steven Rostedt (Red Hat) 2014-07-03 14:51:36 -04:00 • committed by Steven Rostedt

parent f3bea49115

commit 15d5b02cc5

2 changed files with 106 additions and 14 deletions

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98

arch/x86/kernel/ftrace.c

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22

kernel/trace/ftrace.c

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