Condition SB-ARM-ASM::CANNOT-ENCODE-IMMEDIATE-OPERAND was signalled.

[Matthew Kennedy]

1. Some code that works fine on another architecture causes a problem on ARM (a Raspberry Pi 3B+). A backtrace with some context is attached. It appears to happen while generating callback code. I'm not sure if callbacks are supported on armv7l, so it could be my own dumb fault...

1. (still working on making a small test case)

2. SBCL 2.1.0

3. Linux raspberrypi 5.4.83-v7+ #1379 SMP Mon Dec 14 13:08:57 GMT 2020 armv7l GNU/Linux

4. (:QUICKLISP :QUICKLISP-SUPPORT-HTTPS :ASDF3.3 :ASDF3.2 :ASDF3.1 :ASDF3 :ASDF2
 :ASDF :OS-UNIX :NON-BASE-CHARS-EXIST-P :ASDF-UNICODE :ROS.INIT :ARM :GENCGC
 :ANSI-CL :COMMON-LISP :ELF :IEEE-FLOATING-POINT :LINUX :LITTLE-ENDIAN
 :PACKAGE-LOCAL-NICKNAMES :SB-CORE-COMPRESSION :SB-LDB :SB-PACKAGE-LOCKS
 :SB-UNICODE :SBCL :UNIX)

[Douglas Katzman (dougk)]

Callbacks should work, but nothing can be done without a reproducer.