On 10/02/2017 02:45 PM, Philippe Mathieu-Daudé wrote:
> On 10/02/2017 03:34 PM, Richard Henderson wrote:
>> On 10/02/2017 09:36 AM, Philippe Mathieu-Daudé wrote:
>>> Maybe some defines like:
>>>
>>> #define LARGEST_TARGET_INSTR_SIZE 32
>>>
>>> #define MINIMUM_TARGET_PAGE_SIZE 1024
>>
>> Eh.  If I weren't simply pulling numbers out of my hat, perhaps.
>> Does it really make things clearer beyond sizeof or a great big comment?
> 
> big comment is great!

Like the one that's already there?

+        /* We want to read memory for one insn, but generically we do not
+           know how much memory that is.  We have a small buffer which is
+           known to be sufficient for all supported targets.  Try to not
+           read beyond the page, Just In Case.  For even more simplicity,
+           ignore the actual target page size and use a 1k boundary.  If
+           that turns out to be insufficient, we'll come back around the
+           loop and read more.  */


r~

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