On Sun, 7 Aug 2022 07:57:49 GMT, Thomas Stuefe <stu...@openjdk.org> wrote:

>> Nothing I could find in the tests that suggest they use this message as 
>> input, and none of them have failed with this patch, so I guess that's a 
>> good thing? :P
>> 
>> I am slightly concerned with going the route of 2 different calls for WIN32 
>> and the C runtime, since `JLI_ReportErrorMessageSys` is a shared function, 
>> only the implementations differ from platform to platform. I can't think of 
>> any solution off the top of my head to implement such a change without 
>> drastically changing either the Unix variant as well, or the declaration's 
>> signature in the shared header unfortunately.
>> 
>> I was initially hesitant to change the formatting of spacing between the 
>> caller's message and system error, since the original intention for leaving 
>> it up to the caller may have been to allow for better flexibility. Also a 
>> concern was any behaviour differences that might result with the Unix 
>> variant, but it seems like the 2 format their messages entirely differently 
>> - While Windows appends the system error to the end of message without any 
>> formatting, Unix prints it on an entirely separate line above the message 
>> the caller passed it:
>> 
>> JNIEXPORT void JNICALL
>> JLI_ReportErrorMessageSys(const char* fmt, ...) {
>>     va_list vl;
>>     char *emsg;
>> 
>>     /*
>>      * TODO: its safer to use strerror_r but is not available on
>>      * Solaris 8. Until then....
>>      */
>>     emsg = strerror(errno);
>>     if (emsg != NULL) {
>>         fprintf(stderr, "%s\n", emsg);
>>     }
>> 
>>     va_start(vl, fmt);
>>     vfprintf(stderr, fmt, vl);
>>     fprintf(stderr, "\n");
>>     va_end(vl);
>> }
>> 
>> 
>>> If you can make the fix for the CRT extra info small, I'd go for it.
>> 
>> I don't quite get what you mean by that, should I revert the changes made to 
>> the freeit checks?
>
>> Nothing I could find in the tests that suggest they use this message as 
>> input, and none of them have failed with this patch, so I guess that's a 
>> good thing? :P
> 
> Oh, that is fine :) Thanks for looking. I just mentioned it since you are 
> new-ish. The tests that run as part of GHAs are only a tiny subset of all 
> tests though, therefore there can be tests that fail and you would not notice.
> 
> About the rest, starting to pull a thread somewhere and then noticing that 
> the thread gets longer and longer is a normal thing. Then its up to you to 
> decide whether fixing the isolated issue is worth it or whether more code 
> needs to be reworked.
> 
> Cheers, Thomas

@tstuefe Do you think this should be ok now, since all reliance on 
[JDK-8292016](https://bugs.openjdk.org/browse/JDK-8292016) has been dropped?

-------------

PR: https://git.openjdk.org/jdk/pull/9749

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