Use the optional extension name with -mcpu to disable the extensions that are not present in the CPU of your choice. But there are many different choices and options, so it can really pay off to make the library selection an informed and justified one. We can disable it by linking with a special library that provides an alternate implementation for the pure virtual method that simply activates a hardware breakpoint. Here it's look like the config. When using processors that can execute in Arm state and Thumb state, use -mthumb to generate code for Thumb state.
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