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Link to libcrypto and libssl dynamically when using SYSTEM_LIBCRYPTO#5312

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nhorman wants to merge 1 commit into
microsoft:mainfrom
nhorman:5210
Open

Link to libcrypto and libssl dynamically when using SYSTEM_LIBCRYPTO#5312
nhorman wants to merge 1 commit into
microsoft:mainfrom
nhorman:5210

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@nhorman

@nhorman nhorman commented Aug 1, 2025

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When using SYSTEM_LIBCRYPTO, the cmake build system attempts to link libssl statically and libcrypto dynamically. This leads to missing symbols as openssl expects either both libraries to be linked statically or dynamically, not one or the other

Fixes #5210

Description

#5210 reported an issue in which, when using the cmake build infrastructure directly, missing symbols were found when loaded (most notably ossl_time_now). This occured because libssl is being linked statically (which references ossl_time_now in the static archive), but ossl_time_now is only defined as an internal symbol in the libcrypto.dso.

Testing

Unsure, I think most of the tests use the powershell build scripts to build (which link libssl and libcrypto statically avoiding the problem). presumably we would want to test cmake directly, but I'm not sure if thats worthwhile

Documentation

No

When using SYSTEM_LIBCRYPTO, the cmake build system attempts to link
libssl statically and libcrypto dynamically.  This leads to missing
symbols as openssl expects either both libraries to be linked statically
or dynamically, not one or the other

Fixes microsoft#5210
@nhorman nhorman requested a review from a team as a code owner August 1, 2025 12:55
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codecov Bot commented Aug 1, 2025

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 86.24%. Comparing base (2861d81) to head (58b7cb6).

Additional details and impacted files
@@            Coverage Diff             @@
##             main    #5312      +/-   ##
==========================================
+ Coverage   85.35%   86.24%   +0.88%     
==========================================
  Files          59       59              
  Lines       18331    18331              
==========================================
+ Hits        15647    15809     +162     
+ Misses       2684     2522     -162     

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@chweidling chweidling mentioned this pull request Apr 10, 2026
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OpenSSL 3.5 crash

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