How to inspect hotspot compiler results? hsdis binaries for Windows?
Chuck Rasbold
rasbold at google.com
Thu Nov 19 10:44:31 PST 2009
I suggest using / as a separator like so:
-XX:CompileCommand=print,sun/nio/cs/ext/EUC_TW_C_d_b_codeToBuffer4/Decoder,decodeArrayLoop
-- Chuck
On Thu, Nov 19, 2009 at 10:37 AM, Vladimir Kozlov
<Vladimir.Kozlov at sun.com>wrote:
> Separate method name by "::" instead of ".":
>
> ::decodeArrayLoop
>
> And, it seems, we have bug here since it can't parse the class
> name with more then one dot without specified method name:
>
> % gamma -XX:CompileCommand=print,sun.nio.cs -Xcomp t
> VM option 'CompileCommand=print,sun.nio.cs'
> CompilerOracle: unrecognized line
> "print sun nio cs"
>
> Unrecognized text after command: cs
>
> Vladimir
>
>
> Ulf Zibis wrote:
>
>> Vladimir, thanks for your answer.
>>
>> I tried:
>> -XX:CompileCommand=print,sun.nio.cs.ext.EUC_TW_C_d_b_codeToBuffer4.Decoder.decodeArrayLoop
>>
>>
>> ... but got:
>> CompilerOracle: unrecognized line
>> VM option
>> 'CompileCommand=print,sun.nio.cs.ext.EUC_TW_C_d_b_codeToBuffer4.Decoder.decodeArrayLoop'
>>
>> "print sun nio cs ext EUC_TW_C_d_b_codeToBuffer4 Decoder decodeArrayLoop"
>> Unrecognized text after command: cs ext EUC_TW_C_d_b_codeToBuffer4
>> Decoder decodeArrayLoop
>>
>>
>> java.vm.version : 17.0-b05-fastdebug
>>
>> -Ulf
>>
>>
>> Am 19.11.2009 18:58, Vladimir Kozlov schrieb:
>>
>>> Don't use '*' in class name if you want to look on one
>>> particular class. You correctly used CompileCommand=print but
>>> don't specify PrintOptoAssembly if you want to print only one method.
>>>
>>> Vladimir
>>>
>>> Ulf Zibis wrote:
>>>
>>>> Yes, "-XX:+PrintOptoAssembly" option works on Windows too (using
>>>> fastdebug-build). :-)
>>>> Now I get very loooong output, so next question is, how to reduce the
>>>> output to a single method???
>>>> I've tried "-XX:CompileCommand=print,*...", but as expected, it was
>>>> ignored.
>>>> When "-Xbatch" is needed?
>>>>
>>>> BTW, there is no docu for "-XX:+PrintOptoAssembly" on
>>>> http://java.sun.com/javase/technologies/hotspot/vmoptions.jsp
>>>>
>>>> -Ulf
>>>>
>>>>
>>>>
>>>> Am 18.11.2009 18:13, Dennis Byrne schrieb:
>>>>
>>>>> It works on Windows but it is not quite as low level as PrintAssembly.
>>>>> For example you will see things like "fastlock" or "MEMBAR-release"
>>>>> but not the actual instructions behind these operations.
>>>>>
>>>>> Dennis Byrne
>>>>>
>>>>> On Wed, Nov 18, 2009 at 10:56 AM, Clemens Eisserer <
>>>>> linuxhippy at gmail.com> wrote:
>>>>>
>>>>>
>>>>>> Hi Ulf,
>>>>>>
>>>>>> As far as I know the fastdebug-builds support this right out of the
>>>>>> box, it can be enabled using the "-XX:+PrintOptoAssembly" option.
>>>>>> However I don't know wether this works on Windows too.
>>>>>>
>>>>>> - Clemens
>>>>>>
>>>>>> 2009/11/18 Ulf Zibis <Ulf.Zibis at gmx.de>:
>>>>>>
>>>>>>
>>>>>>> Am 18.11.2009 10:21, Christian Thalinger schrieb:
>>>>>>>
>>>>>>>
>>>>>>>> I could upload plugins for Linux and Solaris (both 32 and 64-bit)
>>>>>>>> based
>>>>>>>> on binutils-2.19.1. I actually never tried base-hsdis.
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>> Would be great!
>>>>>>>
>>>>>>> Any volunteer to build the windows plugin ?
>>>>>>> (I not experienced in GNU build environment on Windows and don't
>>>>>>> possess MS
>>>>>>> Visual Studio 2008 enterprise licence)
>>>>>>> Maybe by help of mingw cross compiler on linux.
>>>>>>>
>>>>>>> Would be extremely great!!!
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>> Please, feel free to edit the wiki page for clarity or to fill in
>>>>>>>> missing
>>>>>>>> information.
>>>>>>>>
>>>>>>>>
>>>>>>> Done.
>>>>>>>
>>>>>>> -Ulf
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>
>>>
>>
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