tree dddfc61b0b5e1674ca731ba39d79ec6e45f316dc
parent 74c54461cbb67e5ba20fc8119982a09121221853
author Michael Brown <mcb30@ipxe.org> 1622723654 +0100
committer Michael Brown <mcb30@ipxe.org> 1622723654 +0100

[crypto] Add memory output constraints for big-integer inline assembly

The ARM versions of the big-integer inline assembly functions include
constraints to indicate that the output value is modified by the
assembly code.  These constraints are not present in the equivalent
code for the x86 versions.

As of GCC 11, this results in the compiler reporting that the output
values may be uninitialized.

Fix by including the relevant memory output constraints.

Reported-by: Christian Hesse <mail@eworm.de>
Signed-off-by: Michael Brown <mcb30@ipxe.org>