Next: Microsoft Windows Function Attributes, Previous: MeP Function Attributes, Up: Function Attributes [Contents][Index]
These function attributes are supported on MicroBlaze targets:
save_volatilesUse this attribute to indicate that the function is an interrupt handler. All volatile registers (in addition to non-volatile registers) are saved in the function prologue. If the function is a leaf function, only volatiles used by the function are saved. A normal function return is generated instead of a return from interrupt.
break_handlerUse this attribute to indicate that
the specified function is a break handler. The compiler generates function
entry and exit sequences suitable for use in an break handler when this
attribute is present. The return from break_handler is done through
the rtbd instead of rtsd.
void f () __attribute__ ((break_handler));
interrupt_handlerfast_interruptThese attributes indicate that the specified function is an interrupt
handler. Use the fast_interrupt attribute to indicate handlers
used in low-latency interrupt mode, and interrupt_handler for
interrupts that do not use low-latency handlers. In both cases, GCC
emits appropriate prologue code and generates a return from the handler
using rtid instead of rtsd.