RFR: 8377554: Load card table base and other values via AOTRuntimeConstants in AOT code [v5]

[Andrew Dinn]

> Generated stubs and nmethods embed some runtime-derived constants, such as the card table base, directly into code as instruction operands. AOT code generation cannot rely on these constants being valid between the assembly run and a production run and adjusting the constants at load time is not currently supported. So, instead AOT generation must employ code which loads the constants from a table whose address can be relocated at load time.

Andrew Dinn has updated the pull request incrementally with four additional commits since the last revision:

 - rename card tabel field and load it correctly
 - use correct load and remove redudnant mov
 - fix comment
 - fix pointer deref

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/29884/files
  - new: https://git.openjdk.org/jdk/pull/29884/files/81231d83..c46604af

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=29884&range=04
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=29884&range=03-04

  Stats: 21 lines in 7 files changed: 0 ins; 1 del; 20 mod
  Patch: https://git.openjdk.org/jdk/pull/29884.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/29884/head:pull/29884

PR: https://git.openjdk.org/jdk/pull/29884