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Document limits on static and dynamic linking for HPE NonStop platforms.

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Documentation is necessary as static and dynamic linking cause SIGSEGV
during atexit() processing on the platform.

Fixes: 19951

Signed-off-by: Randall S. Becker <randall.becker@nexbridge.ca>

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19952)

(cherry picked from commit e80518db6d52f9e6faec09df7c25f08a74e8aec2)
This commit is contained in:
Randall S. Becker 2022-12-21 10:32:32 -07:00 committed by Tomas Mraz
parent 8e2552b1ea
commit 7b2625274f
1 changed files with 14 additions and 0 deletions
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14
NOTES-NONSTOP.md
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@ -44,6 +44,20 @@ instead of `nsx` in the set above.
You cannot build for TNS/E for FIPS, so you must specify the `no-fips`
option to `./Configure`.
Linking and Loading Considerations
----------------------------------
Because of how the NonStop Common Runtime Environment (CRE) works, there are
restrictions on how programs can link and load with OpenSSL libraries.
On current NonStop platforms, programs cannot both statically link OpenSSL
libraries and dynamically load OpenSSL shared libraries concurrently. If this
is done, there is a high probability of encountering a SIGSEGV condition
relating to `atexit()` processing when a shared library is unloaded and when
the program terminates. This limitation applies to all OpenSSL shared library
components.
A resolution to this situation is under investigation.
About Prefix and OpenSSLDir
---------------------------