Re: [PATCH v2 1/2] scripts: Add a recorduidiv program

From	Michal Marek <mmarek@suse.cz>
Newsgroups	linux.kernel
Subject	Re: [PATCH v2 1/2] scripts: Add a recorduidiv program
Date	2015-12-01 17:10 +0100
Message-ID	<qAVF7-3r6-7@gated-at.bofh.it> (permalink)
References	(1 earlier) <qyQgy-3rg-15@gated-at.bofh.it> <qyRZ0-4Aw-15@gated-at.bofh.it> <qAype-5id-67@gated-at.bofh.it> <qAyIy-5q7-15@gated-at.bofh.it> <qAySe-5tX-5@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On 2015-11-30 16:40, Michal Marek wrote:
> On 2015-11-30 16:32, Russell King - ARM Linux wrote:
>> On Mon, Nov 30, 2015 at 04:11:16PM +0100, Michal Marek wrote:
>>> On 2015-11-26 00:47, Russell King - ARM Linux wrote:
>>>> Do we have any resolution on these programs which modify the object
>>>> files in-place, rather than breaking any hard-links which may be
>>>> present (eg, as a result of using ccache in hard-link mode) ?
>>>
>>> Good point, but I do not think anybody is using CCACHE_HARDLINK with the
>>> kernel.
>>
>> That's wrong then, because I've been using it for a very long time with
>> my nightly builds. :)  Therefore, there is somebody!
> 
> OK.

So, both recordmcount and the new recordudiv program are idempotent.
They check if the to-be-added section is already present and do nothing.
So the result is correct even with CCACHE_HARDLINK, just the
intermediate file might be incorrect. If this still is considered an
issue, I suggest clearing CCACHE_HARDLINK when using any of these
postprocessors, so as not to penalize other use cases.

The perl recordmcount does not modify the file in place.

Michal
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Thread

Re: [PATCH v2 1/2] scripts: Add a recorduidiv program Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-11-30 16:40 +0100
  Re: [PATCH v2 1/2] scripts: Add a recorduidiv program Michal Marek <mmarek@suse.com> - 2015-11-30 16:50 +0100
    Re: [PATCH v2 1/2] scripts: Add a recorduidiv program Michal Marek <mmarek@suse.cz> - 2015-12-01 17:10 +0100
      Re: [PATCH v2 1/2] scripts: Add a recorduidiv program Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-12-01 17:30 +0100
        Re: [PATCH v2 1/2] scripts: Add a recorduidiv program Michal Marek <mmarek@suse.cz> - 2015-12-01 17:50 +0100
        Re: [PATCH v2 1/2] scripts: Add a recorduidiv program Steven Rostedt <rostedt@goodmis.org> - 2015-12-01 17:50 +0100
          Re: [PATCH v2 1/2] scripts: Add a recorduidiv program Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-12-01 18:20 +0100
            Re: [PATCH v2 1/2] scripts: Add a recorduidiv program Steven Rostedt <rostedt@goodmis.org> - 2015-12-01 18:30 +0100
              Re: [PATCH v2 1/2] scripts: Add a recorduidiv program Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-12-01 19:20 +0100
                Re: [PATCH v2 1/2] scripts: Add a recorduidiv program Michal Marek <mmarek@suse.cz> - 2015-12-01 22:40 +0100
                Re: [PATCH v2 1/2] scripts: Add a recorduidiv program Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-12-02 11:30 +0100
                Re: [PATCH v2 1/2] scripts: Add a recorduidiv program Steven Rostedt <rostedt@goodmis.org> - 2015-12-02 15:10 +0100
                Re: [PATCH] scripts: recordmcount: break hardlinks Steven Rostedt <rostedt@goodmis.org> - 2015-12-11 15:40 +0100
                Re: [PATCH] scripts: recordmcount: break hardlinks Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-12-11 15:50 +0100
                Re: [PATCH] scripts: recordmcount: break hardlinks Steven Rostedt <rostedt@goodmis.org> - 2015-12-11 16:10 +0100
                Re: [PATCH] scripts: recordmcount: break hardlinks Steven Rostedt <rostedt@goodmis.org> - 2015-12-11 19:20 +0100
                Re: [PATCH] scripts: recordmcount: break hardlinks Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-12-11 19:40 +0100
                Re: [PATCH] scripts: recordmcount: break hardlinks Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-12-11 20:00 +0100
                Re: [PATCH] scripts: recordmcount: break hardlinks Steven Rostedt <rostedt@goodmis.org> - 2015-12-11 20:30 +0100
                Re: [PATCH] scripts: recordmcount: break hardlinks Steven Rostedt <rostedt@goodmis.org> - 2015-12-11 20:00 +0100

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