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artiq/soc/runtime/exceptions.c

34 lines
582 B
C

#include "exceptions.h"
#define MAX_EXCEPTION_CONTEXTS 64
struct exception_context {
void *jb[5];
};
static struct exception_context exception_contexts[MAX_EXCEPTION_CONTEXTS];
static int ec_top;
static int stored_id;
void *exception_push(void)
{
if(ec_top >= MAX_EXCEPTION_CONTEXTS)
exception_raise(EID_NOMEM);
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)
{
__builtin_longjmp(exception_contexts[--ec_top].jb, 1);
}