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/*
* This software is part of the SBCL system. See the README file for
* more information.
*
* This software is derived from the CMU CL system, which was
* written at Carnegie Mellon University and released into the
* public domain. The software is in the public domain and is
* provided with absolutely no warranty. See the COPYING and CREDITS
* files for more information.
*/
#ifdef __FreeBSD__
#include <osreldate.h>
#endif
#include <sys/types.h>
#include <sys/mman.h>
#include <sys/signal.h>
typedef caddr_t os_vm_address_t;
typedef vm_size_t os_vm_size_t;
typedef off_t os_vm_offset_t;
typedef int os_vm_prot_t;
typedef int os_context_register_t;
#if defined __OpenBSD__
/* name defined for compatibility between OpenBSD 3.1 sigaltstack(2) and
* Linux sigaltstack(2) */
typedef struct sigaltstack stack_t;
#elif defined __FreeBSD__
/* FreeBSD 4.6 already has stack_t defined. */
#endif
#if defined __FreeBSD__
/* Note: The man page for sigaction(2) in FreeBSD 4.0 says that this
* is an mcontext_t, but according to comments by Raymond Wiker in the
* original FreeBSD port of SBCL, that's wrong, it's actually a
* ucontext_t. */
#include <sys/ucontext.h>
typedef ucontext_t os_context_t;
/* As the sbcl-devel message from Raymond Wiker 2000-12-01, FreeBSD
* (unlike Linux and OpenBSD) doesn't let us tweak the CPU's single
* step flag bit by messing with the flags stored in a signal context,
* so we need to implement single stepping in a more roundabout way. */
#define CANNOT_GET_TO_SINGLE_STEP_FLAG
#define SIG_MEMORY_FAULT SIGBUS
#elif defined __OpenBSD__
typedef struct sigcontext os_context_t;
#define SIG_MEMORY_FAULT SIGSEGV
#elif defined DARWIN
/* man pages claim that the third argument is a sigcontext struct,
but ucontext_t is defined, matches sigcontext where sensible,
offers better access to mcontext, and is of course the SUSv2-
mandated type of the third argument, so we use that instead.
If Apple is going to break ucontext_t out of spite, I'm going
to be cross with them ;) -- PRM */
#include <ucontext.h>
typedef ucontext_t os_context_t;
#define SIG_MEMORY_FAULT SIGBUS
#else
#error unsupported BSD variant
#endif
#include "target-arch-os.h"
#include "target-arch.h"
#define OS_VM_PROT_READ PROT_READ
#define OS_VM_PROT_WRITE PROT_WRITE
#define OS_VM_PROT_EXECUTE PROT_EXEC