When build with -buildmode=plugin, go complains asm error

[MXWXZ]

When imported and build with -buildmode=plugin or anything use dynamic link, go will throw

when dynamic linking, R15 is clobbered by a global variable access and is used here

ref: review src issue

PR posted, should just replaced with imm-value, seems no other side effect with that.

[cespare]

I've started looking at this. I think there are other issues when using dynamic linking, not just R15.

First step is to get the tests running somehow under dynamic linking. This turns out to be fairly annoying (see golang/go#18814, golang/go#18729).

[cespare]

I released v2.1.2 with the fix.