tree 83379c53e7d1821b8351db5dec24f1835f11c526
parent 6ef83ab6be8978ab85a7d8967e9585ddf5f2bbbd
author Sean Anderson <sean.anderson@seco.com> 1698439215 -0400
committer Tom Rini <trini@konsulko.com> 1699638753 -0500

arm: semihosting: Support semihosting fallback on 32-bit ARM

Add support for a semihosting fallback on 32-bit ARM. The assembly is
lightly adapted from the irq return code, except there is no offset
since lr already points to the correct instruction. The C side is mostly
like ARM64, except we have fewer cases to deal with.

Signed-off-by: Sean Anderson <sean.anderson@seco.com>