When using Keil to compile, address space overflow may occur when a function segment is removed

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When using Keil to compile, address space overflow may occur when a function segment is removed [Copy link]

The specific phenomenon is: when a certain function is added during use, there is no problem in compilation, but when this function is removed, address space overflow will occur after compilation. What is the reason?

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Take a look at the screenshot. What specific error is reported?

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