RFR: JDK-8317799 : AIX PPC64: FFI symbol lookup doesn't find symbols [v2]

[suchismith1993]

> 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)

suchismith1993 has updated the pull request incrementally with 172 additional commits since the last revision:

 - Provide support for math library in inline way.
 - Symbol Resolution fix for Panama changes.
   1. Adding required compiler flags.
   2. Adding required symbols.
 - 8320348: test/jdk/java/io/File/GetAbsolutePath.windowsDriveRelative fails if working directory is not on drive C
   
   Reviewed-by: alanb, mbaesken
 - 8320372: test/jdk/sun/security/x509/DNSName/LeadingPeriod.java validity check failed
   
   Reviewed-by: alanb
 - 8320234: Merge doclint.Env.AccessKind with tool.AccessKind
   
   Reviewed-by: jjg
 - 8319817: Charset constructor should make defensive copy of aliases
   
   Reviewed-by: rriggs, alanb, bpb, iris, jpai
 - 8320147: Remove DumpSharedSpaces
   
   Reviewed-by: ccheung, matsaave
 - 8319973: AArch64: Save and restore FPCR in the call stub
   
   Reviewed-by: adinn, stuefe
 - 8320410: Reflow markdown in building.md
   
   Reviewed-by: erikj
 - 8319928: Exceptions thrown by cleanup actions should be handled correctly
   
   Reviewed-by: jvernee
 - ... and 162 more: https://git.openjdk.org/jdk/compare/c340abf0...9c77fa98

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/16414/files
  - new: https://git.openjdk.org/jdk/pull/16414/files/c340abf0..9c77fa98

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=16414&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=16414&range=00-01

  Stats: 629149 lines in 1218 files changed: 87938 ins; 478201 del; 63010 mod
  Patch: https://git.openjdk.org/jdk/pull/16414.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/16414/head:pull/16414

PR: https://git.openjdk.org/jdk/pull/16414