RFR: 8371194: serviceability/sa/TestJhsdbJstackMixedWithXComp.java failing [v2]

[Yasumasa Suenaga]

> We've fixed mixed mode jstack for the debuggee running with `-Xcomp` in [JDK-8370176](https://bugs.openjdk.org/browse/JDK-8370176), but it was not enough. We need to handle like unifying `CFrame` and `Frame` in stack unwinding as possible, and need to change how to get caller SP/FP from stack.
> 
> This PR works fine on both Linux AMD64 and Linux AArch64. All of `hotspot/jtreg/serviceability/sa` tests have been passed on both platforms.
> 
> Big thanks to @pchilano for your help!

Yasumasa Suenaga has updated the pull request incrementally with one additional commit since the last revision:

  Update for Linux PPC64 and RISC-V

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/28284/files
  - new: https://git.openjdk.org/jdk/pull/28284/files/4b854cd5..dfd947ab

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=28284&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=28284&range=00-01

  Stats: 31 lines in 3 files changed: 26 ins; 0 del; 5 mod
  Patch: https://git.openjdk.org/jdk/pull/28284.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/28284/head:pull/28284

PR: https://git.openjdk.org/jdk/pull/28284