model-plugin option is not unset by default

Reproduced on 1.0

There is no model that is provided with snippy but generation with the simplest layout would fail due to fail to find libRISCVModel.so.

layout.yaml:

options:
  march: riscv64

sections:
  - name: text
    VMA: 0x1000
    LMA: 0x1000
    SIZE: 0x1000
    ACCESS: rx
  - name: data
    VMA: 0x2000
    LMA: 0x2000
    SIZE: 0x1000
    ACCESS: rw

histogram:
  - [ADD, 1]

Command:

llvm-snippy layout.yaml

Output:

warning: no instructions seed specified, using auto-generated one: 1713058880954237867
ld.lld: warning: cannot find entry symbol _start; not setting start address
LLVM ERROR: could not find library for plugin: libRISCVModel.so

Can model plugin be turned off by default since no default model is supplied with llvm-snippy?

syntacore / snippy

model-plugin option is not unset by default #17