Re: [PATCH] jump_label: align jump_entry table to at least 4-bytes

From	Steven Rostedt <rostedt@goodmis.org>
Newsgroups	linux.kernel
Subject	Re: [PATCH] jump_label: align jump_entry table to at least 4-bytes
Date	2017-02-28 00:20 +0100
Message-ID	<tfCKd-4br-3@gated-at.bofh.it> (permalink)
References	(5 earlier) <tfBO9-3yE-23@gated-at.bofh.it> <tfBO9-3yE-17@gated-at.bofh.it> <tfC7w-3G2-5@gated-at.bofh.it> <tfC7w-3G2-3@gated-at.bofh.it> <tfCqR-3Po-3@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Mon, 27 Feb 2017 14:45:37 -0800
David Daney <ddaney@caviumnetworks.com> wrote:

> On 02/27/2017 02:36 PM, Steven Rostedt wrote:
> > On Mon, 27 Feb 2017 14:21:21 -0800
> > David Daney <ddaney@caviumnetworks.com> wrote:
> >  
> >> See attached for mips.  It seems to do the right thing.
> >>
> >> I leave it as an exercise to the reader to fix the other architectures.
> >>
> >> Consult your own  binutils experts to verify that what I say is true.  
> >
> > It may still just be safer to do the pointers instead. That way we
> > don't need to worry about some strange arch or off by one binutils
> > messing it up.  
> 
> Obviously it is your choice, but this is bog standard ELF linking.  In 
> theory even the arrays of power-of-2 sized objects should also supply an 
> entity size.  Think __ex_table and its ilk.
> 
> 
> The benefit of supplying an entsize is that you don't have to change the 
> structure of the existing code and risk breaking something in the process.

I agree that this may be the better answer. The issue tracepoints had
is that they were defined in C with a "section" attribute. I'm not sure
you can pass various section attributes via a gcc section attribute.

-- Steve

Thread

[PATCH] jump_label: align jump_entry table to at least 4-bytes Jason Baron <jbaron@akamai.com> - 2017-02-27 20:00 +0100
  Re: [PATCH] jump_label: align jump_entry table to at least 4-bytes Jason Baron <jbaron@akamai.com> - 2017-02-27 20:30 +0100
    Re: [PATCH] jump_label: align jump_entry table to at least 4-bytes Steven Rostedt <rostedt@goodmis.org> - 2017-02-27 23:20 +0100
      Re: [PATCH] jump_label: align jump_entry table to at least 4-bytes Steven Rostedt <rostedt@goodmis.org> - 2017-02-27 23:40 +0100
        Re: [PATCH] jump_label: align jump_entry table to at least 4-bytes Jason Baron <jbaron@akamai.com> - 2017-02-28 00:00 +0100
          Re: [PATCH] jump_label: align jump_entry table to at least 4-bytes Steven Rostedt <rostedt@goodmis.org> - 2017-02-28 17:50 +0100
            Re: [PATCH] jump_label: align jump_entry table to at least 4-bytes Jason Baron <jbaron@akamai.com> - 2017-02-28 19:50 +0100
              Re: [PATCH] jump_label: align jump_entry table to at least 4-bytes Jason Baron <jbaron@akamai.com> - 2017-02-28 20:40 +0100
                Re: [PATCH] jump_label: align jump_entry table to at least 4-bytes Jason Baron <jbaron@akamai.com> - 2017-03-01 00:00 +0100
        Re: [PATCH] jump_label: align jump_entry table to at least 4-bytes Steven Rostedt <rostedt@goodmis.org> - 2017-02-28 00:20 +0100
    Re: [PATCH] jump_label: align jump_entry table to at least 4-bytes Steven Rostedt <rostedt@goodmis.org> - 2017-02-28 03:40 +0100

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