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#include "init.h"
#include "encoding.h"
int main(void);
trap_handler_t trap_handler[NHARTS] = {0};
void set_trap_handler(trap_handler_t handler)
{
unsigned hartid = read_csr(mhartid);
trap_handler[hartid] = handler;
}
void enable_timer_interrupts()
{
set_csr(mie, MIP_MTIP);
set_csr(mstatus, MSTATUS_MIE);
}
void handle_trap(unsigned int mcause, void *mepc, void *sp)
{
unsigned hartid = read_csr(mhartid);
if (trap_handler[hartid]) {
trap_handler[hartid](hartid, mcause, mepc, sp);
return;
}
while (1)
;
}
void _exit(int status)
{
// Make sure gcc doesn't inline _exit, so we can actually set a breakpoint
// on it.
volatile int i = 42;
while (i)
;
// _exit isn't supposed to return.
while (1)
;
}
void _init()
{
_exit(main());
}
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