| Date | Thu, 15 Feb 2024 10:39:43 -0500 | From | Steven Rostedt <> | Subject | Re: [PATCH v7 23/36] function_graph: Add a new exit handler with parent_ip and ftrace_regs |
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On Wed, 7 Feb 2024 00:11:44 +0900 "Masami Hiramatsu (Google)" <mhiramat@kernel.org> wrote:
> From: Masami Hiramatsu (Google) <mhiramat@kernel.org> > > Add a new return handler to fgraph_ops as 'retregfunc' which takes > parent_ip and ftrace_regs instead of ftrace_graph_ret. This handler > is available only if the arch support CONFIG_HAVE_FUNCTION_GRAPH_FREGS. > Note that the 'retfunc' and 'reregfunc' are mutual exclusive. > You can set only one of them. > > Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> >
> @@ -1076,6 +1083,7 @@ struct fgraph_ops { > trace_func_graph_ent_t entryfunc; > trace_func_graph_ret_t retfunc; > trace_func_graph_regs_ent_t entryregfunc; > + trace_func_graph_regs_ret_t retregfunc;
Same for this:
struct fgraph_ops { union { trace_func_graph_ent_t entryfunc; trace_func_graph_regs_ent_t entryregfunc; }; union { trace_func_graph_ret_t retfunc; trace_func_graph_regs_ret_t retregfunc; }
-- Steve
> struct ftrace_ops ops; /* for the hash lists */ > void *private; > int idx;
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