On Tue, 15 Oct 2019 09:00:55 -0400 Steven Rostedt <rost...@goodmis.org> wrote:
> +++ b/include/asm-generic/vmlinux.lds.h > @@ -111,15 +111,22 @@ > > #ifdef CONFIG_FTRACE_MCOUNT_RECORD > #ifdef CC_USING_PATCHABLE_FUNCTION_ENTRY > +/* > + * Need to also make ftrace_graph_stub point to ftrace_stub > + * so that the same stub location may have different protocols > + * and not mess up with C verifiers. > + */ > diff --git a/kernel/trace/fgraph.c b/kernel/trace/fgraph.c > index 7950a0356042..fa3ce10d0405 100644 > --- a/kernel/trace/fgraph.c > +++ b/kernel/trace/fgraph.c > @@ -332,9 +332,14 @@ int ftrace_graph_entry_stub(struct ftrace_graph_ent > *trace) > return 0; > } > > +/* > + * Simply points to ftrace_stub, but with the proper protocol. > + * Defined by the linker script in linux/vmlinux.lds.h > + */ > +extern void ftrace_graph_stub(struct ftrace_graph_ret *); > + s/protocol/prototype/g Will update. -- Steve
