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artiq/soc/runtime/exceptions.c

60 lines
1.1 KiB
C

#include <generated/csr.h>
#include "exceptions.h"
#ifndef ARTIQ_BIPROCESSOR
#include "comm.h"
#endif
#define MAX_EXCEPTION_CONTEXTS 64
struct exception_context {
void *jb[13];
};
static struct exception_context exception_contexts[MAX_EXCEPTION_CONTEXTS];
static int ec_top;
static int stored_id;
long long int exception_params[3];
void *exception_push(void)
{
if(ec_top >= MAX_EXCEPTION_CONTEXTS)
exception_raise(EID_OUT_OF_MEMORY);
return exception_contexts[ec_top++].jb;
}
void exception_pop(int levels)
{
ec_top -= levels;
}
int exception_getid(void)
{
return stored_id;
}
void exception_raise(int id)
{
exception_raise_params(id, 0, 0, 0);
}
void exception_raise_params(int id,
long long int p0, long long int p1,
long long int p2)
{
if(ec_top > 0) {
stored_id = id;
exception_params[0] = p0;
exception_params[1] = p1;
exception_params[2] = p2;
exception_longjmp(exception_contexts[--ec_top].jb);
} else {
#ifdef ARTIQ_BIPROCESSOR
#warning TODO
#else
comm_log("ERROR: uncaught exception, ID=%d\n", id);
#endif
while(1);
}
}