arm-exception-vector.c

// ldr pc, [pc, #24]                                                            
#define JMP_PC_24   0xe59ff018

typedef void (*exception_hander_t)(void);

typedef struct __attribute__((aligned(32))) _vector_table_t {
    const unsigned int vector[8]; // all elements shoud be JMP_PC_24            
    exception_hander_t reset;
    exception_hander_t undef;
    exception_hander_t svc;
    exception_hander_t prefetch_abort;
    exception_hander_t data_abort;
    exception_hander_t hypervisor_trap;
    exception_hander_t irq;
    exception_hander_t fiq;
} vector_table_t;


static void __attribute__((interrupt("UNDEF"))) undef_handler(void);
static void __attribute__((interrupt("SWI"))) svc_handler(void);
static void __attribute__((interrupt("ABORT"))) abort_handler(void);
static void __attribute__((interrupt("IRQ"))) irq_handler(void);
static void __attribute__((interrupt("FIQ"))) fiq_handler(void);
static void __attribute__((naked)) hangup(void);

static vector_table_t exception_vector = { \
    .vector = { JMP_PC_24, JMP_PC_24, JMP_PC_24, JMP_PC_24, \
                JMP_PC_24, JMP_PC_24, JMP_PC_24, JMP_PC_24 },
    .reset = Init_Machine,
    .undef = undef_handler,
    .svc = svc_handler,
    .prefetch_abort = abort_handler,
    .data_abort = abort_handler,
    .hypervisor_trap = hangup,
    .irq = irq_handler,
    .fiq = hangup
};