diff options
| author | Randall S. Becker <randall.becker@nexbridge.ca> | 2024-01-25 22:11:27 +0000 |
|---|---|---|
| committer | Tomas Mraz <tomas@openssl.org> | 2024-02-22 10:40:04 +0100 |
| commit | 73a68d8adde293ad73cb66444b4b683a5697d686 (patch) | |
| tree | 2e32472a9ddbb901f07b2d27828affc358253c41 /INSTALL.md | |
| parent | 878d31954738369c35cbafbaa65e9201e9fc6d4b (diff) | |
Add atexit configuration option to using atexit() in libcrypto at build-time.
This fixes an issue with a mix of atexit() usage in DLL and statically linked
libcrypto that came out in the test suite on NonStop, which has slightly
different DLL unload processing semantics compared to Linux. The change
allows a build configuration to select whether to register OPENSSL_cleanup()
with atexit() or not, so avoid situations where atexit() registration causes
SIGSEGV.
INSTALL.md and CHANGES.md have been modified to include and describe this
option.
Signed-off-by: Randall S. Becker <randall.becker@nexbridge.ca>
Signed-off-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Tom Cosgrove <tom.cosgrove@arm.com>
Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/23642)
(cherry picked from commit 0e1989d4c7435809b60f614c23ba8c9a7c0373e8)
Diffstat (limited to 'INSTALL.md')
| -rw-r--r-- | INSTALL.md | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/INSTALL.md b/INSTALL.md index fef408e9d1..045b13739b 100644 --- a/INSTALL.md +++ b/INSTALL.md @@ -546,6 +546,13 @@ be used even with this option. Do not build support for async operations. +### no-atexit + +Do not use `atexit()` in libcrypto builds. + +`atexit()` has varied semantics between platforms and can cause SIGSEGV in some +circumstances. This options disables the atexit registration of OPENSSL_cleanup. + ### no-autoalginit Don't automatically load all supported ciphers and digests. |