问题描述
如果您在src/python下修改文件，则必须进行重建，这与对configs/
If you modify a file under src/python, then a rebuild is necessary, unlike modifications to configs/
这使得在该目录下进行更改非常痛苦，因为即使是干净的重建也要花费几秒钟.
That makes making changes under that directory very painful, since even the clean rebuild takes several seconds.
是否有避免重建的方法?
Is there a way to avoid the rebuild?
推荐答案
M5_OVERRIDE_PY_SOURCE=true
M5_OVERRIDE_PY_SOURCE=true
如果导出该环境变量以进行运行，并且gem5直接使用Python源代码.
If you export that environment variable for the run, and gem5 uses the Python source code directly.
这可能存在，因为默认情况下，gem5将Python目标文件打包在gem5.opt二进制文件内，因此允许用户在不更改其PYTHON_PATH的情况下运行它.
This likely exists because by default, gem5 packs up Python object files inside the gem5.opt binary so allows users to run it without changing their PYTHON_PATH.
M5_OVERRIDE_PY_SOURCE的工作方式此处在252dd80中进行了描述.
经过以下测试: https://gem5.googlesource.com/public/gem5/+/91295ff980c17efb3ad013b9636017b58e49c071
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