Messages in this thread | | | Date | Tue, 2 Aug 2016 22:30:00 -0500 | From | Josh Poimboeuf <> | Subject | Re: [PATCH 05/19] x86/dumpstack: fix function graph tracing stack dump reliability issues |
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On Tue, Aug 02, 2016 at 11:18:57PM -0400, Steven Rostedt wrote: > On Tue, 2 Aug 2016 22:12:33 -0500 > Josh Poimboeuf <jpoimboe@redhat.com> wrote: > > > > Sounds good. I was thinking I could also add a similar define to > > indicate whether an arch passes the return address stack pointer to > > ftrace_push_return_trace(). HAVE_FUNCTION_GRAPH_RET_ADDR_PTR? > > > > If you are making this function global, might as well make all pass > that pointer when you do the conversion. I don't think we need a define > to differentiate it.
In theory, I like the idea. But from what I can tell, it looks like a few arches would require some assembly changes: s390, powerpc, and sparc. I can probably handle s390 and power, but sparc is a whole different story...
-- Josh
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