/* prmcxc.h: MUTATOR CONTEXT (macOS)
 *
 * $Id$
 * Copyright (c) 2001-2020 Ravenbrook Limited.  See end of file for license.
 *
 * .readership: MPS developers.
 */

#ifndef prmcxc_h
#define prmcxc_h

#include "mpm.h"

#include <mach/mach_types.h>
#if defined(MPS_ARCH_A6)
#include <mach/arm/thread_status.h>
#elif defined(MPS_ARCH_I3) || defined(MPS_ARCH_I6)
#include <mach/i386/thread_status.h>
#else
#error "Unknown macOS architecture"
#endif

typedef struct MutatorContextStruct {
  Sig sig;                      /* <design/sig> */
  MutatorContextVar var;        /* Discriminator. */
  Addr address;                 /* Fault address, if stopped by protection
                                 * fault; NULL if stopped by thread manager. */
  THREAD_STATE_S *threadState;
  /* TODO: Consider getting the floats in case the compiler stashes
     intermediate values in them.  Never observed. */
} MutatorContextStruct;

extern void MutatorContextInitFault(MutatorContext context, Addr address, THREAD_STATE_S *threadState);
extern void MutatorContextInitThread(MutatorContext context, THREAD_STATE_S *threadState);

#endif /* prmcxc_h */


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