Fix warnings occurring with gcc 4.3

Xiaobin Lu Xiaobin.Lu at Sun.COM
Tue Feb 3 17:20:54 PST 2009


On 02/03/09 16:41, David Holmes - Sun Microsystems wrote:
> Hi Xiaobin,
>
> I'm a bit confused about VMError because internally _lineno is now 
> (not sure when it changed) defined as size_t but all the constructors 
> that take a lineno argument take an int ?? So why bother with size_t?
>
> But if it is meant to be size_t then you also need to fix this at line 
> 200:
>
>       jio_snprintf(buf, buflen,
>         "Internal Error at %s:%d, pid=%d, tid=" UINTX_FORMAT " 
> \nError: %s",
>         p ? p + 1 : _filename, _lineno,
>         os::current_process_id(), os::current_thread_id(),
>         _message ? _message : "");
I think the right way to fix this is to define _lineno as "int" and fix 
line 309 of vmError.cpp to use "%d" for _lineno instead of "SIZE_FORMAT" 
(which is why I thought to use size_t for _lineno). It is strange I 
didn't get error message for the above statement on 64 bit Linux.

-Xiaobin
>
> Cheers,
> David Holmes
>
> Xiaobin Lu said the following on 02/04/09 09:56:
>> On 02/03/09 15:12, Vladimir Kozlov wrote:
>>> 6778669. Still in Dispatched state.
>> The problem mentioned in Andrew's patch has actually been fixed 
>> recently by Coleen and me. I don't have Redhat machine around, but I 
>> can build hotspot successfully with latest fedora 10 release.
>>
>> -Xiaobin
>>>
>>> Vladimir
>>>
>>> Andrew John Hughes wrote:
>>>> 2009/2/3 Xiaobin Lu <Xiaobin.Lu at sun.com>:
>>>>> On 02/03/09 14:24, Andrew John Hughes wrote:
>>>>>
>>>>> 2009/2/3 Xiaobin Lu <Xiaobin.Lu at sun.com>:
>>>>>
>>>>>
>>>>> Did you check out the latest code? Those you pointed out have been 
>>>>> already
>>>>> fixed.
>>>>>
>>>>> -Xiaobin
>>>>>
>>>>> On 02/03/09 12:30, Andrew John Hughes wrote:
>>>>>
>>>>>
>>>>> A number of warnings are thrown when compiling the HotSpot code with
>>>>> gcc 4.3, all of which are related to the incorrect use of printf
>>>>> format specifiers.  As HotSpot is built with -Werror, these cause the
>>>>> build to fail.  The attached patch against OpenJDK7 fixes them.
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> They are not fixed in b45.
>>>>>
>>>>>
>>>>> b45 is the latest promoted build. hg.openjdk.java.net/jdk7/hotspot 
>>>>> should
>>>>> have those what you are trying to fix. Those will show up in the next
>>>>> promotion build.
>>>>>
>>>>> -Xiaobin
>>>>>
>>>>>
>>>>
>>>> Good. We obviously don't build directly from the forest and it isn't
>>>> clear that such changes are in that tree; the commit list just shows
>>>> the branch being tagged.
>>




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