fix eror: relocation truncated to fit: R_PPC64_REL14 (stub) against symbol `ChaCha20_ctr32_vsx_8x'

[xicilion]

This pr is used to fix link errors in the aes assembly algorithm under ppc64.

The following message is reported when connecting under ppc64:

/works/fibjs/bin/Linux_ppc64_release/libopenssl.a(chachap10-ppc.s.o): in function `ChaCha20_ctr32_vsx_p10':
(.text+0x4): relocation truncated to fit: R_PPC64_REL14 (stub) against symbol `ChaCha20_ctr32_vsx_8x' defined in .text section in /works/fibjs/bin/Linux_ppc64_release/libopenssl.a(chachap10-ppc.s.o)

Issues related to this pr #21286

Checklist

• documentation is added or updated
• tests are added or updated

CLA: trivial

[slontis]

Thanks for addressing this..
As far as I can see this code was added 2 years old..
See f596bbe
Why is this only being flagged now? i.e. Why wouldn't this have been a problem for the original author?

How far away is the label? (it looks like conditional branches use 12 bits (4096)).

[xicilion]

This remote jump issue is only triggered when linking openssl to a larger application with a static library.
For example #21286

[slontis]

I wonder if there is an easy way to test this in CI..

[xicilion]

I don't know how to test it in CI at the moment either, I can only realize to test it in a real project.

[t8m]

Could you please amend the actual commit message to contain the CLA: trivial annotation in the commit message body on a separate line?

[t8m]

OK with CLA: trivial

[tom-cosgrove-arm]

LGTM, ok with trivial

[openssl-machine]

24 hours has passed since 'approval: done' was set, but this PR has failing CI tests. Once the tests pass it will get moved to 'approval: ready to merge' automatically, alternatively please review and set the label manually.

[t8m]

Merged to the master, 3.2 and 3.1 branches. Thank you for your contribution.