Document non-8-bits-addressable support in NEWS

  On 15-08-26 10:37 PM, Eli Zaretskii wrote:
> I think you should drop the second sentence, as it doesn't add any
> useful information and is slightly inaccurate.  I think everyone will
> understand what non-8-bits-addressable means.

Right, thanks. Pushed with second sentence removed.


From fd2ae5d6a3a5c4007be45f9b2f325955ac316f36 Mon Sep 17 00:00:00 2001
From: Simon Marchi <simon.marchi@ericsson.com>
Date: Thu, 27 Aug 2015 09:30:00 -0400
Subject: [PATCH] Document non-8-bits addressable memory support in NEWS

I think it would be a good idea to document that gdb now has (basic)
support to read/write memory on architectures with non-8-bits memory.
Hopefully somebody will see it and say "Hey!  We can now (more easily)
port GDB to our strange DSP that has 32-bits-addressable memory!" and do
it.

gdb/ChangeLog:

	* NEWS: Document support for non-8-bits addressable memory.
---
 gdb/ChangeLog | 4 ++++
 gdb/NEWS      | 3 +++
 2 files changed, 11 insertions(+)

   target mon2000	mon2000 ROM monitor
   target ppcbug		PPCBUG ROM monitor for PowerPC

+* Support for reading/writing memory and extracting values on architectures
+  with non-8-bits-addressable memory.
+
 *** Changes in GDB 7.10

 * Support for process record-replay and reverse debugging on aarch64*-linux*
  

> On Aug 27, 2015, at 9:33 AM, Simon Marchi <simon.marchi@ericsson.com> wrote:
> 
> On 15-08-26 10:37 PM, Eli Zaretskii wrote:
>> I think you should drop the second sentence, as it doesn't add any
>> useful information and is slightly inaccurate.  I think everyone will
>> understand what non-8-bits-addressable means.
> 
> Right, thanks. Pushed with second sentence removed.
> 
> 
> From fd2ae5d6a3a5c4007be45f9b2f325955ac316f36 Mon Sep 17 00:00:00 2001
> From: Simon Marchi <simon.marchi@ericsson.com>
> Date: Thu, 27 Aug 2015 09:30:00 -0400
> Subject: [PATCH] Document non-8-bits addressable memory support in NEWS
> 
> I think it would be a good idea to document that gdb now has (basic)
> support to read/write memory on architectures with non-8-bits memory.
> Hopefully somebody will see it and say "Hey!  We can now (more easily)
> port GDB to our strange DSP that has 32-bits-addressable memory!" and do
> it.

Would it make sense to say what it can handle?  Multiples of 8?  Powers of 2?  Any number?  

"Any number" (like 27, or 60) is probably found only in historic machines, but I remember DSPs with 24 bit memory.

	paul
  

On 15-08-27 10:09 AM, Paul_Koning@Dell.com wrote:
> Would it make sense to say what it can handle?  Multiples of 8?  Powers of 2?  Any number?  
> 
> "Any number" (like 27, or 60) is probably found only in historic machines, but I remember DSPs with 24 bit memory.
> 
> 	paul

It's multiples of 8.  It would be good to add this precision I think.

What about adding: "Supported addressable sizes are multiples of 8 bytes." ?
  

On 15-08-27 10:26 AM, Simon Marchi wrote:
> On 15-08-27 10:09 AM, Paul_Koning@Dell.com wrote:
>> Would it make sense to say what it can handle?  Multiples of 8?  Powers of 2?  Any number?  
>>
>> "Any number" (like 27, or 60) is probably found only in historic machines, but I remember DSPs with 24 bit memory.
>>
>> 	paul
> 
> It's multiples of 8.  It would be good to add this precision I think.
> 
> What about adding: "Supported addressable sizes are multiples of 8 bytes." ?

Err, it should be "Supported addressable sizes are multiples of 8 bits.", not bytes.
  

> On Aug 27, 2015, at 11:04 AM, Simon Marchi <simon.marchi@ericsson.com> wrote:
> 
> On 15-08-27 10:26 AM, Simon Marchi wrote:
>> On 15-08-27 10:09 AM, Paul_Koning@Dell.com wrote:
>>> Would it make sense to say what it can handle?  Multiples of 8?  Powers of 2?  Any number?  
>>> 
>>> "Any number" (like 27, or 60) is probably found only in historic machines, but I remember DSPs with 24 bit memory.
>>> 
>>> 	paul
>> 
>> It's multiples of 8.  It would be good to add this precision I think.
>> 
>> What about adding: "Supported addressable sizes are multiples of 8 bytes." ?
> 
> Err, it should be "Supported addressable sizes are multiples of 8 bits.", not bytes.

Sounds good.  So I guess I won't be doing a cdc6600-gdb target handler.  :-)

	paul
  

> From: Simon Marchi <simon.marchi@ericsson.com>
> Date: Thu, 27 Aug 2015 11:04:50 -0400
> 
> On 15-08-27 10:26 AM, Simon Marchi wrote:
> > On 15-08-27 10:09 AM, Paul_Koning@Dell.com wrote:
> >> Would it make sense to say what it can handle?  Multiples of 8?  Powers of 2?  Any number?  
> >>
> >> "Any number" (like 27, or 60) is probably found only in historic machines, but I remember DSPs with 24 bit memory.
> >>
> >> 	paul
> > 
> > It's multiples of 8.  It would be good to add this precision I think.
> > 
> > What about adding: "Supported addressable sizes are multiples of 8 bytes." ?
> 
> Err, it should be "Supported addressable sizes are multiples of 8 bits.", not bytes.

I suggest to leave a single sentence reworded thusly:

  * Support for reading/writing memory and extracting values on architectures
    whose memory is addressable in units of any integral multiple of 8 bits.