[ATfE] Provide debug output handler in LLVM libc crt0 #699
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Replace direct call to semihosting WRITEC for debug output of exception details to a platform specific handler: _platform_debug_putc(int c) Implement the handler in semihosting and provide a placeholder in no-host crt0.
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Replace direct call to semihosting WRITEC for debug output of exception details to a platform specific handler: _platform_debug_putc(int c)
Implement the handler in semihosting and provide a placeholder in no-host crt0.