RFR: 8277204: Implement PAC-RET branch protection on Linux/AArch64 [v18]

[Andrew Haley]

On Mon, 7 Feb 2022 10:58:59 GMT, Andrew Haley <aph at openjdk.org> wrote:

>> Alan Hayward has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Documentation updates
>
> src/hotspot/cpu/aarch64/frame_aarch64.cpp line 275:
> 
>> 273:   if (TracePcPatching) {
>> 274:     tty->print_cr("patch_pc at address " INTPTR_FORMAT " [" INTPTR_FORMAT " -> " INTPTR_FORMAT "]",
>> 275:                   p2i(pc_addr), p2i(*pc_addr), p2i(signed_pc));
> 
> Let's see both pc and signed pc here.

> Let's see both pc and signed pc here, if they are different.

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PR: https://git.openjdk.java.net/jdk/pull/6334