RFR: JDK-8317799 : AIX PPC64: FFI symbol lookup doesn't find symbols

[Magnus Ihse Bursie]

On Mon, 30 Oct 2023 10:54:48 GMT, suchismith1993 <duke at openjdk.org> wrote:

> The math library in AIX specifically, is a static archive. Doing a -lm wont suffice, because when the symbols are looked up using dlsym or accessing native code through Java, it will lead to failures.
> Hence we had to come up with a list of symbols to allow math library symbols to be accesible.
> Also, there are parts of libc library that are static too, and hence those symbols also are present in this list.
> Without this change, the StdLibTest and multiple other tests which make native function calls using FFI, fail with NoSuchElementException.
> 
> 
> 1. Adding required compiler flags.
> 2. Adding required symbols.
> 
> 
> JBS-ISSUE : [JDK-8317799](https://bugs.openjdk.org/browse/JDK-8317799)

The syslookup.c solution for Windows looks interesting. While it is still a hard-coded list, at least you will get compile time errors if the include file changes to mismatch with the symbols...

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PR Comment: https://git.openjdk.org/jdk/pull/16414#issuecomment-1816653571