[−][src]Attribute Macro xtensa_lx_rt_proc_macros::
Marks a function as the interrupt handler, with optional interrupt level indicated
When the function is also marked
#[naked], it is a low-level interrupt handler:
no entry and exit code to store processor state will be generated.
The user needs to ensure that all registers which are used are saved and restored and that
the proper return instruction is used.