X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/2d21ac55c334faf3a56e5634905ed6987fc787d4..5ba3f43ea354af8ad55bea84372a2bc834d8757c:/bsd/sys/user.h diff --git a/bsd/sys/user.h b/bsd/sys/user.h index 89dd1cd4f..92b235bb9 100644 --- a/bsd/sys/user.h +++ b/bsd/sys/user.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved. + * Copyright (c) 2000-2012 Apple Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * @@ -65,6 +65,7 @@ #define _SYS_USER_H_ #include +struct waitq_set; #ifndef KERNEL /* stuff that *used* to be included by user.h, or is now needed */ #include @@ -73,17 +74,24 @@ #include #include #endif +#ifdef XNU_KERNEL_PRIVATE +#include #include -#ifdef KERNEL_PRIVATE +#include #include #endif #include /* XXX */ #include - + #ifdef KERNEL +#ifdef BSD_KERNEL_PRIVATE +#include /* for uu_kwe entry */ +#include +#endif /* BSD_KERNEL_PRIVATE */ #ifdef __APPLE_API_PRIVATE #include +#if !defined(__LP64__) || defined(XNU_KERNEL_PRIVATE) /* * VFS context structure (part of uthread) */ @@ -92,105 +100,151 @@ struct vfs_context { kauth_cred_t vc_ucred; /* per thread credential */ }; +#endif /* !__LP64 || XNU_KERNEL_PRIVATE */ + +#ifdef BSD_KERNEL_PRIVATE /* XXX Deprecated: xnu source compatability */ #define uu_ucred uu_context.vc_ucred -#ifdef BSD_KERNEL_PRIVATE +struct label; /* MAC label dummy struct */ + +#define MAXTHREADNAMESIZE 64 /* * Per-thread U area. */ struct uthread { /* syscall parameters, results and catches */ - user_addr_t uu_arg[8]; /* arguments to current system call */ - int *uu_ap; /* pointer to arglist */ + u_int64_t uu_arg[8]; /* arguments to current system call */ int uu_rval[2]; + unsigned int syscall_code; /* current syscall code */ /* thread exception handling */ - int uu_exception; mach_exception_code_t uu_code; /* ``code'' to trap */ mach_exception_subcode_t uu_subcode; + int uu_exception; char uu_cursig; /* p_cursig for exc. */ /* 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 */ + union { + struct _select_data { u_int64_t abstime; - int poll; - int error; + uint64_t *wqp; int count; - int kfcount; - char * wql; - } uu_select; /* saved state for select() */ - /* to support kevent continuations */ - union { - struct _kevent_scan { - kevent_callback_t call; /* per-event callback */ - kevent_continue_t cont; /* whole call continuation */ - uint64_t deadline; /* computed deadline for operation */ - void *data; /* caller's private data */ - } ss_kevent_scan; /* saved state for kevent_scan() */ + struct select_nocancel_args *args; /* original syscall arguments */ + int32_t *retval; /* place to store return val */ + } ss_select_data; + struct _kqueue_scan { + kevent_callback_t call; /* per-event callback */ + kqueue_continue_t cont; /* whole call continuation */ + filt_process_data_t process_data; /* needed for filter processing */ + uint64_t deadline; /* computed deadline for operation */ + void *data; /* caller's private data */ + } ss_kqueue_scan; /* saved state for kevent_scan() */ struct _kevent { - struct _kevent_scan scan;/* space for the generic data */ - struct fileproc *fp; /* fileproc we hold iocount on */ - 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 */ + struct _kqueue_scan scan; /* space for the generic data */ + struct fileproc *fp; /* fileproc we hold iocount on */ + int fd; /* fd for fileproc (if held) */ + int eventcount; /* user-level event count */ + int eventout; /* number of events output */ + struct filt_process_s process_data; /* space for process data fed thru */ + int32_t *retval; /* place to store return val */ + user_addr_t eventlist; /* user-level event list address */ + uint64_t data_available; /* [user/kernel] addr of in/out size */ } ss_kevent; /* saved state for kevent() */ + + struct _kauth { + user_addr_t message; /* message in progress */ + } uu_kauth; + + struct ksyn_waitq_element uu_kwe; /* user for pthread synch */ + + struct _waitid_data { + struct waitid_nocancel_args *args; /* original syscall arguments */ + int32_t *retval; /* place to store return val */ + } uu_waitid_data; + + struct _wait4_data { + struct wait4_nocancel_args *args; /* original syscall arguments */ + int32_t *retval; /* place to store return val */ + } uu_wait4_data; } uu_kevent; - struct _kauth { - user_addr_t message; /* message in progress */ - } uu_kauth; + + /* Persistent memory allocations across system calls */ + struct _select { + u_int32_t *ibits, *obits; /* bits to select on */ + uint nbytes; /* number of bytes in ibits and obits */ + } uu_select; /* saved state for select() */ + /* 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; + thread_t uu_thread; void * uu_userstate; - wait_queue_set_t uu_wqset; /* cached across select calls */ - size_t uu_allocsize; /* ...size of select cache */ + struct waitq_set *uu_wqset; /* waitq state cached across select calls */ + size_t uu_wqstate_sz; /* ...size of uu_wqset buffer */ + int uu_flag; 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 */ - struct vfs_context uu_context; /* thread + cred */ sigset_t uu_vforkmask; /* saved signal mask during vfork */ + struct vfs_context uu_context; /* thread + cred */ TAILQ_ENTRY(uthread) uu_list; /* List of uthreads in proc */ - struct kaudit_record *uu_ar; /* audit record */ + 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_window; + lck_spin_t uu_rethrottle_lock; /* locks was_rethrottled and is_throttled */ + TAILQ_ENTRY(uthread) uu_throttlelist; /* List of uthreads currently throttled */ + void * uu_throttle_info; /* pointer to throttled I/Os info */ + int uu_on_throttlelist; + int uu_lowpri_window; + boolean_t uu_was_rethrottled; + boolean_t uu_is_throttled; + boolean_t uu_throttle_bc; - struct user_sigaltstack uu_sigstk; - int uu_defer_reclaims; + u_int32_t uu_network_marks; /* network control flow marks */ + + struct kern_sigaltstack uu_sigstk; 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 */ + int uu_defer_reclaims; + + struct kqueue *uu_kqueue_bound; /* kqueue we are bound to service */ + unsigned int uu_kqueue_qos_index; /* qos index we are bound to service */ + unsigned int uu_kqueue_flags; /* the flags we are using */ + boolean_t uu_kqueue_override_is_sync; /* sync qos override applied to servicer */ #ifdef JOE_DEBUG int uu_iocount; int uu_vpindex; void * uu_vps[32]; + void * uu_pcs[32][10]; #endif + int uu_proc_refcount; +#if PROC_REF_DEBUG +#define NUM_PROC_REFS_TO_TRACK 32 +#define PROC_REF_STACK_DEPTH 10 + int uu_pindex; + void * uu_proc_ps[NUM_PROC_REFS_TO_TRACK]; + uintptr_t uu_proc_pcs[NUM_PROC_REFS_TO_TRACK][PROC_REF_STACK_DEPTH]; +#endif + #if CONFIG_DTRACE uint32_t t_dtrace_errno; /* Most recent errno */ - uint8_t t_dtrace_stop; /* indicates a DTrace-desired stop */ + siginfo_t t_dtrace_siginfo; + uint64_t t_dtrace_resumepid; /* DTrace's pidresume() pid */ + 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 */ @@ -201,7 +255,7 @@ struct uthread { uint8_t _t_dtrace_reg; /* modified register */ #endif } _tds; - unsigned long _t_dtrace_ft; /* bitwise or of these flags */ + u_int32_t _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 @@ -222,9 +276,15 @@ struct uthread { #if __sol64 || defined(__APPLE__) uint64_t t_dtrace_regv; /* DTrace saved reg from fasttrap */ #endif + void * t_dtrace_syscall_args; #endif /* CONFIG_DTRACE */ void * uu_threadlist; - mount_t v_mount; + char * pth_name; + + /* Document Tracking struct used to track a "tombstone" for a document */ + struct doc_tombstone *t_tombstone; + + struct os_reason *uu_exit_reason; }; typedef struct uthread * uthread_t; @@ -241,11 +301,13 @@ typedef struct uthread * uthread_t; #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 */ +/* 0x00000800 unused, used to be UT_BACKGROUND */ +/* 0x00001000 unused, used to be UT_BACKGROUND_TRAFFIC_MGT */ #define UT_VFORK 0x02000000 /* thread has vfork children */ #define UT_SETUID 0x04000000 /* thread is settugid() */ #define UT_WASSETUID 0x08000000 /* thread was settugid() (in vfork) */ +#define UT_VFORKING 0x10000000 /* thread in vfork() syscall */ #endif /* BSD_KERNEL_PRIVATE */