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| author |   Ingo Molnar <mingo@elte.hu> | 2009-02-19 12:13:33 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-02-19 12:13:33 +0100 |
| commit | 4cd0332db7e8f57cc082bab11d82c064a9721737 (patch) | |
| tree | b6de7771d67c5bf6eeb890fa0f5a901365104b98 /include/linux | |
| parent | Merge branches 'tracing/blktrace', 'tracing/ftrace' and 'tracing/urgent' into tracing/core (diff) | |
| parent | tracing/function-graph-tracer: make arch generic push pop functions (diff) | |
| download | linux-dev-4cd0332db7e8f57cc082bab11d82c064a9721737.tar.xz linux-dev-4cd0332db7e8f57cc082bab11d82c064a9721737.zip | |
Merge branch 'mainline/function-graph' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into tracing/function-graph-tracer
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/ftrace.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index 9d224c43e634..915f4723fc8b 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -404,6 +404,30 @@ struct ftrace_graph_ret { #ifdef CONFIG_FUNCTION_GRAPH_TRACER /* + * Stack of return addresses for functions + * of a thread. + * Used in struct thread_info + */ +struct ftrace_ret_stack { + unsigned long ret; + unsigned long func; + unsigned long long calltime; +}; + +/* + * Primary handler of a function return. + * It relays on ftrace_return_to_handler. + * Defined in entry_32/64.S + */ +extern void return_to_handler(void); + +extern int +ftrace_push_return_trace(unsigned long ret, unsigned long long time, + unsigned long func, int *depth); +extern void +ftrace_pop_return_trace(struct ftrace_graph_ret *trace, unsigned long *ret); + +/* * Sometimes we don't want to trace a function with the function * graph tracer but we want them to keep traced by the usual function * tracer if the function graph tracer is not configured. |