#ifdef __APPLE_API_PRIVATE
#include <sys/eventvar.h>
+/*
+ * VFS context structure (part of uthread)
+ */
+struct vfs_context {
+ thread_t vc_thread; /* pointer to Mach thread */
+ kauth_cred_t vc_ucred; /* per thread credential */
+};
+
+/* XXX Deprecated: xnu source compatability */
+#define uu_ucred uu_context.vc_ucred
+
+#ifdef BSD_KERNEL_PRIVATE
/*
* Per-thread U area.
*/
+
struct uthread {
- int *uu_ar0; /* address of users saved R0 */
-
/* syscall parameters, results and catches */
- u_int64_t uu_arg[8]; /* arguments to current system call */
+ user_addr_t uu_arg[8]; /* arguments to current system call */
int *uu_ap; /* pointer to arglist */
int uu_rval[2];
/* thread exception handling */
- int uu_code; /* ``code'' to trap */
+ int uu_exception;
+ mach_exception_code_t uu_code; /* ``code'' to trap */
+ mach_exception_subcode_t uu_subcode;
char uu_cursig; /* p_cursig for exc. */
- /* support for select - across system calls */
+ /* support for syscalls which use continuations */
struct _select {
- u_int32_t *ibits, *obits; /* bits to select on */
- uint nbytes; /* number of bytes in ibits and obits */
- wait_queue_set_t wqset; /* cached across select calls */
- size_t allocsize; /* ...size of select cache */
- u_int64_t abstime;
- int poll;
- int error;
- int count;
- char * wql;
+ u_int32_t *ibits, *obits; /* bits to select on */
+ uint nbytes; /* number of bytes in ibits and obits */
+ u_int64_t abstime;
+ int poll;
+ int error;
+ int count;
+ int kfcount;
+ char * wql;
} uu_select; /* saved state for select() */
- /* to support continuations */
+ /* to support kevent continuations */
union {
- int uu_nfs_myiod; /* saved state for nfsd */
struct _kevent_scan {
kevent_callback_t call; /* per-event callback */
kevent_continue_t cont; /* whole call continuation */
int fd; /* filedescriptor for kq */
register_t *retval; /* place to store return val */
user_addr_t eventlist; /* user-level event list address */
+ size_t eventsize; /* user-level event size (LP64) */
int eventcount; /* user-level event count */
int eventout; /* number of events output */
} ss_kevent; /* saved state for kevent() */
- } uu_state;
+ } uu_kevent;
+ struct _kauth {
+ user_addr_t message; /* message in progress */
+ } uu_kauth;
/* internal support for continuation framework */
int (*uu_continuation)(int);
int uu_pri;
int uu_timo;
+ caddr_t uu_wchan; /* sleeping thread wait channel */
+ const char *uu_wmesg; /* ... wait message */
int uu_flag;
+ int uu_iopol_disk; /* disk I/O policy */
struct proc * uu_proc;
void * uu_userstate;
+ wait_queue_set_t uu_wqset; /* cached across select calls */
+ size_t uu_allocsize; /* ...size of select cache */
sigset_t uu_siglist; /* signals pending for the thread */
sigset_t uu_sigwait; /* sigwait on this thread*/
sigset_t uu_sigmask; /* signal mask for the thread */
sigset_t uu_oldmask; /* signal mask saved before sigpause */
- thread_t uu_act;
+ struct vfs_context uu_context; /* thread + cred */
sigset_t uu_vforkmask; /* saved signal mask during vfork */
TAILQ_ENTRY(uthread) uu_list; /* List of uthreads in proc */
struct kaudit_record *uu_ar; /* audit record */
struct task* uu_aio_task; /* target task for async io */
-
+
/* network support for dlil layer locking */
u_int32_t dlil_incremented_read;
lck_mtx_t *uu_mtx;
- int uu_lowpri_delay;
+ int uu_lowpri_window;
- struct ucred *uu_ucred; /* per thread credential */
+ struct user_sigaltstack uu_sigstk;
int uu_defer_reclaims;
vnode_t uu_vreclaims;
+ int uu_notrigger; /* XXX - flag for autofs */
+ vnode_t uu_cdir; /* per thread CWD */
+ int uu_dupfd; /* fd in fdesc_open/dupfdopen */
#ifdef JOE_DEBUG
int uu_iocount;
int uu_vpindex;
void * uu_vps[32];
#endif
+#if CONFIG_DTRACE
+ uint32_t t_dtrace_errno; /* Most recent errno */
+ uint8_t t_dtrace_stop; /* indicates a DTrace-desired stop */
+ uint8_t t_dtrace_sig; /* signal sent via DTrace's raise() */
+
+ union __tdu {
+ struct __tds {
+ uint8_t _t_dtrace_on; /* hit a fasttrap tracepoint */
+ uint8_t _t_dtrace_step; /* about to return to kernel */
+ uint8_t _t_dtrace_ret; /* handling a return probe */
+ uint8_t _t_dtrace_ast; /* saved ast flag */
+#if __sol64 || defined(__APPLE__)
+ uint8_t _t_dtrace_reg; /* modified register */
+#endif
+ } _tds;
+ unsigned long _t_dtrace_ft; /* bitwise or of these flags */
+ } _tdu;
+#define t_dtrace_ft _tdu._t_dtrace_ft
+#define t_dtrace_on _tdu._tds._t_dtrace_on
+#define t_dtrace_step _tdu._tds._t_dtrace_step
+#define t_dtrace_ret _tdu._tds._t_dtrace_ret
+#define t_dtrace_ast _tdu._tds._t_dtrace_ast
+#if __sol64 || defined(__APPLE__)
+#define t_dtrace_reg _tdu._tds._t_dtrace_reg
+#endif
+
+ user_addr_t t_dtrace_pc; /* DTrace saved pc from fasttrap */
+ user_addr_t t_dtrace_npc; /* DTrace next pc from fasttrap */
+ user_addr_t t_dtrace_scrpc; /* DTrace per-thread scratch location */
+ user_addr_t t_dtrace_astpc; /* DTrace return sequence location */
+
+ struct dtrace_ptss_page_entry* t_dtrace_scratch; /* scratch space entry */
+
+#if __sol64 || defined(__APPLE__)
+ uint64_t t_dtrace_regv; /* DTrace saved reg from fasttrap */
+#endif
+#endif /* CONFIG_DTRACE */
+ void * uu_threadlist;
+ mount_t v_mount;
};
typedef struct uthread * uthread_t;
#define UT_CANCEL 0x00000008 /* thread marked for cancel */
#define UT_CANCELED 0x00000010 /* thread cancelled */
#define UT_CANCELDISABLE 0x00000020 /* thread cancel disabled */
+#define UT_ALTSTACK 0x00000040 /* this thread has alt stack for signals */
+#define UT_THROTTLE_IO 0x00000080 /* this thread issues throttle I/O */
+#define UT_PASSIVE_IO 0x00000100 /* this thread issues passive I/O */
+#define UT_PROCEXIT 0x00000200 /* this thread completed the proc exit */
+#define UT_RAGE_VNODES 0x00000400 /* rapid age any vnodes created by this thread */
+#define UT_BACKGROUND 0x00000800 /* this thread is in background state */
#define UT_VFORK 0x02000000 /* thread has vfork children */
#define UT_SETUID 0x04000000 /* thread is settugid() */
#define UT_WASSETUID 0x08000000 /* thread was settugid() (in vfork) */
+#endif /* BSD_KERNEL_PRIVATE */
+
#endif /* __APPLE_API_PRIVATE */
#endif /* KERNEL */
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