RFR (XS): 8044071: Print format/argument warnings
Mikael Vidstedt
mikael.vidstedt at oracle.com
Wed May 28 15:09:26 UTC 2014
On 2014-05-28 04:44, Lois Foltan wrote:
> Hi Mikael,
>
> Looks good. One question concerning a change in
> nativeInst_sparc.cpp. It seems that in most cases "0x%x" was changed
> in favor of INTPTR_FORMAT, but in NativeMovConstRegPatching::print()
> you did the opposite change, INTPTR_FORMAT to "0x%x". Just curious if
> there was a reason for that? It would be more consistent for example,
> with your change to NativeMoveConstReg::print(), if it was left as an
> INTPTR_FORMAT.
In the cases where I changed INTPTR_FORMAT to 0x%x it is because the
argument is in fact an int. While I could upcast to an intptr_t instead
I personally think that is more confusing than it is helpful.
Cheers,
Mikael
>
> Minor - copyrights on all files need to be updated.
>
> Thanks,
> Lois
>
> On 5/27/2014 6:22 PM, Mikael Vidstedt wrote:
>>
>> Please review the below change which addresses a number of print
>> format/argument mismatches when compiling linux/sparc using gcc.
>>
>> Bug: https://bugs.openjdk.java.net/browse/JDK-8044071
>> Webrev:
>> http://cr.openjdk.java.net/~mikael/webrevs/8044071/webrev.00/webrev/
>>
>> Most of these are straightforward changes to INTPTR_FORMAT & adding
>> p2i. A couple of changes worth bringing up:
>>
>> * nativeInst_sparc.cpp
>>
>> I changed the format of the offset in mov related prints (two
>> occurrences) to %d, since it's really a signed decimal int. This will
>> hopefully reduce confusion when the offset is negative, where
>> previously it would have looked like a relatively large positive offset.
>>
>> * macroAssembler_sparc.cpp
>>
>> The new code is in line with other similar patterns in the same file,
>> but the ugly cast should IMHO really be rewritten to cast through a
>> union. RFE?
>>
>> Cheers,
>> Mikael
>>
>
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