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artiq/soc/runtime/artiq_personality.c

42 lines
1.4 KiB
C

#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <unwind.h>
#include "artiq_personality.h"
#define ARTIQ_EXCEPTION_CLASS 0x4152545141525451LL // 'ARTQARTQ'
struct artiq_raised_exception {
struct _Unwind_Exception unwind;
struct artiq_exception artiq;
};
static void __artiq_cleanup(_Unwind_Reason_Code reason, struct _Unwind_Exception *exc) {
struct artiq_raised_exception *inflight = (struct artiq_raised_exception*) exc;
// The in-flight exception is statically allocated, so we don't need to free it.
// But, we clear it to mark it as processed.
memset(&inflight->artiq, 0, sizeof(struct artiq_exception));
}
void __artiq_raise(struct artiq_exception *artiq_exn) {
static struct artiq_raised_exception inflight;
memcpy(&inflight.artiq, artiq_exn, sizeof(struct artiq_exception));
inflight.unwind.exception_class = ARTIQ_EXCEPTION_CLASS;
inflight.unwind.exception_cleanup = &__artiq_cleanup;
_Unwind_Reason_Code result = _Unwind_RaiseException(&inflight.unwind);
if(result == _URC_END_OF_STACK) {
__artiq_terminate(&inflight.artiq);
} else {
fprintf(stderr, "__artiq_raise: unexpected error (%d)\n", result);
abort();
}
}
_Unwind_Reason_Code __artiq_personality(
int version, _Unwind_Action actions, uint64_t exceptionClass,
struct _Unwind_Exception *exceptionObject, struct _Unwind_Context *context) {
abort();
}