RFR: 8258751: Improve ExceptionHandlerTable dump [v2]

[Ningsheng Jian]

On Tue, 5 Jan 2021 02:54:09 GMT, Hao Sun <github.com+16932759+shqking at openjdk.org> wrote:

>> In addition to PC offset, print the real PC as well if available when
>> dumping the ExceptionHandlerTable, as it's more convenient and readable
>> for debugging or other activities.
>> 
>> Note that compilers might dump the ExceptionHandlerTable before method
>> registered. See functions emit_code_body() and fill_buffer(). However,
>> real PC is not ready yet during these phases since the generated code is
>> not installed. In such scenarios, the real PC is not printed.
>> 
>> The example below shows how the dump information would be changed after
>> applying this patch.
>>   BEFORE:
>>     ExceptionHandlerTable (size = 40 bytes)
>>     catch_pco = 392 (2 entries)
>>       bci 8 at scope depth 0 -> pco 184
>>       bci 19 at scope depth 0 -> pco 124
>>   AFTER:
>>     ExceptionHandlerTable (size = 40 bytes)
>>     catch_pco = 392 (pc=0x0000ffff818f13c8, 2 entries)
>>       bci 8 at scope depth 0 -> pco 184 (pc=0x0000ffff818f12f8)
>>       bci 19 at scope depth 0 -> pco 124 (pc=0x0000ffff818f12bc)
>
> Hao Sun has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Update the copyright notice to 2021
>   
>   Upate the copyright notice to 2021.
>   
>   Change-Id: I442d1e3e1774488c2806c6cc21c2db7c4db08b8f
>   CustomizedGitHooks: yes

Marked as reviewed by njian (Committer).

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PR: https://git.openjdk.java.net/jdk/pull/1877