On Mon, Nov 27, 2023 at 10:58:40PM +0900, Masami Hiramatsu (Google) wrote: > From: Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx> > > Rewrite fprobe implementation on function-graph tracer. > Major API changes are: > - 'nr_maxactive' field is deprecated. > - This depends on CONFIG_DYNAMIC_FTRACE_WITH_ARGS or > !CONFIG_HAVE_DYNAMIC_FTRACE_WITH_ARGS, and > CONFIG_HAVE_FUNCTION_GRAPH_FREGS. So currently works only > on x86_64. > - Currently the entry size is limited in 15 * sizeof(long). > - If there is too many fprobe exit handler set on the same > function, it will fail to probe. > > Signed-off-by: Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx> > --- > Changes in v3: > - Update for new reserve_data/retrieve_data API. > - Fix internal push/pop on fgraph data logic so that it can > correctly save/restore the returning fprobes. hi, looks like this one conflicts with recent: 4bbd93455659 kprobes: kretprobe scalability improvement jirka
