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UVISOR_PACKED Struct Reference

UVISOR_PACKED Struct Reference

A basic exception frame. More...

#include <halt_exports.h>


Detailed Description

A basic exception frame.

Register gateway structure.

This struct contains the registers always saved during an exception in the order they are placed in the memory. If FPU state is also saved it's placed after this register block. On ARMv8-M in certain cases an additional state context may be placed on the stack before this block.

This struct is packed because we must ensure that the `svc_opcode` field has no padding before itself, and that the `bxlr` field is at a pre-determined offset from the `branch` field.

Definition at line 42 of file FEATURE_UVISOR/includes/uvisor/api/inc/api.h.