diff options
| author |   Masami Hiramatsu (Google) <mhiramat@kernel.org> | 2024-12-26 14:12:09 +0900 |
|---|---|---|
| committer |   Steven Rostedt (Google) <rostedt@goodmis.org> | 2024-12-26 10:50:03 -0500 |
| commit | 2ca8c112c9676e2394d76760db78ffddf21d93b5 (patch) | |
| tree | a811de4fbc576c05d30516f0d1974d67455fc7ab /include/linux/ftrace.h | |
| parent | fgraph: Replace fgraph_ret_regs with ftrace_regs (diff) | |
| download | wireguard-linux-2ca8c112c9676e2394d76760db78ffddf21d93b5.tar.xz wireguard-linux-2ca8c112c9676e2394d76760db78ffddf21d93b5.zip | |
fgraph: Pass ftrace_regs to retfunc
Pass ftrace_regs to the fgraph_ops::retfunc(). If ftrace_regs is not
available, it passes a NULL instead. User callback function can access
some registers (including return address) via this ftrace_regs.
Cc: Alexei Starovoitov <alexei.starovoitov@gmail.com>
Cc: Florent Revest <revest@chromium.org>
Cc: Martin KaFai Lau <martin.lau@linux.dev>
Cc: bpf <bpf@vger.kernel.org>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Alan Maguire <alan.maguire@oracle.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/173518992972.391279.14055405490327765506.stgit@devnote2
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'include/linux/ftrace.h')
| -rw-r--r-- | include/linux/ftrace.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index 069f270bd7ae..9a1e768e47da 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -1075,7 +1075,8 @@ struct fgraph_ops; /* Type of the callback handlers for tracing function graph*/ typedef void (*trace_func_graph_ret_t)(struct ftrace_graph_ret *, - struct fgraph_ops *); /* return */ + struct fgraph_ops *, + struct ftrace_regs *); /* return */ typedef int (*trace_func_graph_ent_t)(struct ftrace_graph_ent *, struct fgraph_ops *, struct ftrace_regs *); /* entry */ |