RFR: JDK-8320890: [AIX] Find a better way to mimic dl handle equality [v5]

[Thomas Stuefe]

On Mon, 18 Dec 2023 10:06:34 GMT, Thomas Stuefe <stuefe at openjdk.org> wrote:

>> Joachim Kern has updated the pull request incrementally with two additional commits since the last revision:
>> 
>>  - trailing whitespace
>>  - Following most of Thomas proposals
>
> src/hotspot/os/aix/porting_aix.cpp line 934:
> 
>> 932:   struct scnhdr the_scn;
>> 933:   struct ldhdr the_ldr;
>> 934:   size_t sz = FILHSZ + _AOUTHSZ_EXEC;
> 
> please rename to xcoffsz, and make constexpr: `constexpr size_t xcoffsz = ...`

Also, can you please add

STATIC_ASSERT(sizeof(the_xcoff) == xcoffsz);
STATIC_ASSERT(sizeof(the_scn) == SCNHSZ);
STATIC_ASSERT(sizeof(the_ldr) == LDHDRSZ);

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PR Review Comment: https://git.openjdk.org/jdk/pull/16920#discussion_r1429853292