/*
- * Copyright (c) 2000-2007 Apple Inc. All rights reserved.
+ * Copyright (c) 2000-2010 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
#include <sys/proc.h>
__BEGIN_DECLS
#include <kern/locks.h>
+#if PSYNCH
+#include <kern/thread_call.h>
+#endif /* PSYNCH */
__END_DECLS
#if DEBUG
struct proc * s_leader; /* Session leader.(static) */
struct vnode * s_ttyvp; /* Vnode of controlling terminal.(SL) */
int s_ttyvid; /* Vnode id of the controlling terminal (SL) */
- struct tty * s_ttyp; /* Controlling terminal. (SL) */
+ struct tty * s_ttyp; /* Controlling terminal. (SL + ttyvp != NULL) */
pid_t s_ttypgrpid; /* tty's pgrp id */
pid_t s_sid; /* Session ID (static) */
char s_login[MAXLOGNAME]; /* Setlogin() name.(SL) */
#define SESSION_NULL (struct session *)0
+/*
+ * accessor for s_ttyp which treats it as invalid if s_ttyvp is not valid;
+ * note that s_ttyp is not a reference in the session structre, so it can
+ * become invalid out from under the session if the device is closed, without
+ * this protection. We can't safely make it into a reference without reflexive
+ * close notification of tty devices through cdevsw[].
+ *
+ * NB: <sys/tty.h> is not in scope and there is not typedef type enforcement,
+ * or '0' below would be 'TTY_NULL'.
+ */
+#define SESSION_TP(sp) (((sp)->s_ttyvp != 0) ? (sp)->s_ttyp : 0)
+
/*
* Session flags; used to tunnel information to lower layers and line
* disciplines, etc.
*/
#define S_DEFAULT 0x00000000 /* No flags set */
#define S_NOCTTY 0x00000001 /* Do not associate controlling tty */
+#define S_CTTYREF 0x00000010 /* vnode ref taken by cttyopen */
#define S_LIST_TERM 1 /* marked for termination */
#define PROC_NULL (struct proc *)0
+#define PROC_UPDATE_CREDS_ONPROC(p) { \
+ p->p_uid = kauth_cred_getuid(p->p_ucred); \
+ p->p_gid = kauth_cred_getgid(p->p_ucred); \
+ p->p_ruid = kauth_cred_getruid(p->p_ucred); \
+ p->p_rgid = kauth_cred_getrgid(p->p_ucred); \
+ p->p_svuid = kauth_cred_getsvuid(p->p_ucred); \
+ p->p_svgid = kauth_cred_getsvgid(p->p_ucred); \
+ }
/*
* Description of a process.
*
struct proc * p_pptr; /* Pointer to parent process.(LL) */
pid_t p_ppid; /* process's parent pid number */
pid_t p_pgrpid; /* process group id of the process (LL)*/
+ uid_t p_uid;
+ gid_t p_gid;
+ uid_t p_ruid;
+ gid_t p_rgid;
+ uid_t p_svuid;
+ gid_t p_svgid;
+ uint64_t p_uniqueid; /* process unique ID - incremented on fork/spawn/vfork, remains same across exec. */
+ uint64_t p_puniqueid; /* parent's unique ID - set on fork/spawn/vfork, doesn't change if reparented. */
lck_mtx_t p_mlock; /* mutex lock for proc */
struct plimit *p_limit; /* Process limits.(PL) */
struct sigacts *p_sigacts; /* Signal actions, state (PL) */
+ int p_siglist; /* signals captured back from threads */
lck_spin_t p_slock; /* spin lock for itimer/profil protection */
#define p_rlimit p_limit->pl_rlimit
lck_mtx_t p_dtrace_sprlock; /* sun proc lock emulation */
int p_dtrace_probes; /* (PL) are there probes for this proc? */
u_int p_dtrace_count; /* (sprlock) number of DTrace tracepoints */
+ uint8_t p_dtrace_stop; /* indicates a DTrace-desired stop */
struct dtrace_ptss_page* p_dtrace_ptss_pages; /* (sprlock) list of user ptss pages */
struct dtrace_ptss_page_entry* p_dtrace_ptss_free_list; /* (atomic) list of individual ptss entries */
struct dtrace_helpers* p_dtrace_helpers; /* (dtrace_lock) DTrace per-proc private */
char p_name[(2*MAXCOMLEN)+1]; /* PL */
struct pgrp *p_pgrp; /* Pointer to process group. (LL) */
- int p_iopol_disk; /* disk I/O policy (PL) */
uint32_t p_csflags; /* flags for codesign (PL) */
+ uint32_t p_pcaction; /* action for process control on starvation */
+ uint8_t p_uuid[16]; /* from LC_UUID load command */
+
+ /*
+ * CPU type and subtype of binary slice executed in
+ * this process. Protected by proc lock.
+ */
+ cpu_type_t p_cputype;
+ cpu_subtype_t p_cpusubtype;
/* End area that is copied on creation. */
/* XXXXXXXXXXXXX End of BCOPY'ed on fork (AIOLOCK)XXXXXXXXXXXXXXXX */
-#define p_endcopy aio_active_count
- int aio_active_count; /* entries on aio_activeq */
- int aio_done_count; /* entries on aio_doneq */
- TAILQ_HEAD( , aio_workq_entry ) aio_activeq; /* active async IO requests */
- TAILQ_HEAD( , aio_workq_entry ) aio_doneq; /* completed async IO requests */
+#define p_endcopy p_aio_total_count
+ int p_aio_total_count; /* all allocated AIO requests for this proc */
+ int p_aio_active_count; /* all unfinished AIO requests for this proc */
+ TAILQ_HEAD( , aio_workq_entry ) p_aio_activeq; /* active async IO requests */
+ TAILQ_HEAD( , aio_workq_entry ) p_aio_doneq; /* completed async IO requests */
struct klist p_klist; /* knote list (PL ?)*/
- struct rusage *p_ru; /* Exit information. (PL) */
+ struct rusage_superset *p_ru; /* Exit information. (PL) */
+ int p_sigwaitcnt;
thread_t p_signalholder;
thread_t p_transholder;
/* DEPRECATE following field */
u_short p_acflag; /* Accounting flags. */
+ volatile u_short p_vfs_iopolicy; /* VFS iopolicy flags. (atomic bit ops) */
struct lctx *p_lctx; /* Pointer to login context. */
LIST_ENTRY(proc) p_lclist; /* List of processes in lctx. */
user_addr_t p_threadstart; /* pthread start fn */
user_addr_t p_wqthread; /* pthread workqueue fn */
int p_pthsize; /* pthread size */
+ uint32_t p_pth_tsd_offset; /* offset from pthread_t to TSD for new threads */
+ user_addr_t p_targconc; /* target concurrency ptr */
+ user_addr_t p_stack_addr_hint; /* stack allocation hint for wq threads */
void * p_wqptr; /* workq ptr */
int p_wqsize; /* allocated size */
- lck_mtx_t p_wqlock; /* lock to protect work queue */
+ boolean_t p_wqiniting; /* semaphore to serialze wq_open */
+ lck_spin_t p_wqlock; /* lock to protect work queue */
struct timeval p_start; /* starting time */
void * p_rcall;
int p_ractive;
int p_idversion; /* version of process identity */
+ void * p_pthhash; /* pthread waitqueue hash */
+ volatile uint64_t was_throttled __attribute__((aligned(8))); /* Counter for number of throttled I/Os */
+ volatile uint64_t did_throttle __attribute__((aligned(8))); /* Counter for number of I/Os this proc throttled */
+
#if DIAGNOSTIC
unsigned int p_fdlock_pc[4];
unsigned int p_fdunlock_pc[4];
unsigned int unlockpc[8];
#endif /* SIGNAL_DEBUG */
#endif /* DIAGNOSTIC */
+ uint64_t p_dispatchqueue_offset;
+ uint64_t p_dispatchqueue_serialno_offset;
+#if VM_PRESSURE_EVENTS
+ struct timeval vm_pressure_last_notify_tstamp;
+#endif
+
+#if CONFIG_MEMORYSTATUS
+ /* Fields protected by proc list lock */
+ TAILQ_ENTRY(proc) p_memstat_list; /* priority bucket link */
+ uint32_t p_memstat_state; /* state */
+ int32_t p_memstat_effectivepriority; /* priority after transaction state accounted for */
+ int32_t p_memstat_requestedpriority; /* active priority */
+ uint32_t p_memstat_dirty; /* dirty state */
+ uint64_t p_memstat_userdata; /* user state */
+ uint64_t p_memstat_idledeadline; /* time at which process became clean */
+#if CONFIG_JETSAM
+ int32_t p_memstat_memlimit; /* cached memory limit */
+#endif
+#if CONFIG_FREEZE
+ uint32_t p_memstat_suspendedfootprint; /* footprint at time of suspensions */
+#endif /* CONFIG_FREEZE */
+#endif /* CONFIG_MEMORYSTATUS */
};
#define PGRPID_DEAD 0xdeaddead
#define P_LIST_INPGRP 0x00020000 /* process is in pgrp */
#define P_LIST_PGRPTRANS 0x00040000 /* pgrp is getting replaced */
#define P_LIST_PGRPTRWAIT 0x00080000 /* wait for pgrp replacement */
+#define P_LIST_EXITCOUNT 0x00100000 /* counted for process exit */
/* local flags */
#define P_LTERM 0x00000004 /* */
#define P_LEXIT 0x00000008 /* */
#define P_LPEXIT 0x00000010
-#define P_LTHSIGSTACK 0x00000020
+#define P_LTRANSCOMMIT 0x00000020 /* process is committed to trans */
#define P_LINTRANSIT 0x00000040 /* process in exec or in creation */
#define P_LTRANSWAIT 0x00000080 /* waiting for trans to complete */
-#define P_LVFORK 0x00000100 /* */
-#define P_LINVFORK 0x00000200 /* */
+#define P_LVFORK 0x00000100 /* parent proc of a vfork */
+#define P_LINVFORK 0x00000200 /* child proc of a vfork */
#define P_LTRACED 0x00000400 /* */
#define P_LSIGEXC 0x00000800 /* */
#define P_LNOATTACH 0x00001000 /* */
#define P_LLIMWAIT 0x00040000
#define P_LWAITED 0x00080000
#define P_LINSIGNAL 0x00100000
-#define P_LSIGNALWAIT 0x00200000
+#define P_UNUSED 0x00200000 /* Unused */
#define P_LRAGE_VNODES 0x00400000
-
-/* advisory flags in the proc */
+#define P_LREGISTER 0x00800000 /* thread start fns registered */
+#define P_LVMRSRCOWNER 0x01000000 /* can handle the resource ownership of */
+/* old P_LPTERMINATE 0x02000000 */
+#define P_LTERM_DECRYPTFAIL 0x04000000 /* process terminating due to key failure to decrypt */
+#define P_LTERM_JETSAM 0x08000000 /* process is being jetsam'd */
+#define P_JETSAM_VMPAGESHORTAGE 0x00000000 /* jetsam: lowest jetsam priority proc, killed due to vm page shortage */
+#define P_JETSAM_VMTHRASHING 0x10000000 /* jetsam: lowest jetsam priority proc, killed due to vm thrashing */
+#define P_JETSAM_HIWAT 0x20000000 /* jetsam: high water mark */
+#define P_JETSAM_PID 0x30000000 /* jetsam: pid */
+#define P_JETSAM_IDLEEXIT 0x40000000 /* jetsam: idle exit */
+#define P_JETSAM_VNODE 0x50000000 /* jetsam: vnode kill */
+#define P_JETSAM_FCTHRASHING 0x60000000 /* jetsam: lowest jetsam priority proc, killed due to filecache thrashing */
+#define P_JETSAM_MASK 0x70000000 /* jetsam type mask */
+
+/* Process control state for resource starvation */
+#define P_PCTHROTTLE 1
+#define P_PCSUSP 2
+#define P_PCKILL 3
+#define P_PCMAX 3
+
+/* Process control action state on resrouce starvation */
+#define PROC_ACTION_MASK 0xffff0000;
+#define PROC_CONTROL_STATE(p) (p->p_pcaction & P_PCMAX)
+#define PROC_ACTION_STATE(p) ((p->p_pcaction >> 16) & P_PCMAX)
+#define PROC_SETACTION_STATE(p) (p->p_pcaction = (PROC_CONTROL_STATE(p) | (PROC_CONTROL_STATE(p) << 16)))
+#define PROC_RESETACTION_STATE(p) (p->p_pcaction = PROC_CONTROL_STATE(p))
+
+/* additional process flags */
#define P_LADVLOCK 0x01
+/* p_vfs_iopolicy flags */
+#define P_VFS_IOPOLICY_FORCE_HFS_CASE_SENSITIVITY 0x0001
+
/* defns for proc_iterate */
#define PROC_ALLPROCLIST 1 /* walk the allproc list (procs not exited yet) */
#define PROC_ZOMBPROCLIST 2 /* walk the zombie list */
#define PROC_CLAIMED 2
#define PROC_CLAIMED_DONE 3
+/* process creation arguments */
+#define PROC_CREATE_FORK 0 /* independent child (running) */
+#define PROC_CREATE_SPAWN 1 /* independent child (suspended) */
+#define PROC_CREATE_VFORK 2 /* child borrows context */
+
/* LP64 version of extern_proc. all pointers
* grow when we're dealing with a 64-bit process.
#ifdef KERNEL
#include <sys/time.h> /* user_timeval, user_itimerval */
-struct user_extern_proc {
+#pragma pack(4)
+struct user32_extern_proc {
+ union {
+ struct {
+ uint32_t __p_forw; /* Doubly-linked run/sleep queue. */
+ uint32_t __p_back;
+ } p_st1;
+ struct user32_timeval __p_starttime; /* process start time */
+ } p_un;
+ uint32_t p_vmspace; /* Address space. */
+ uint32_t p_sigacts; /* Signal actions, state (PROC ONLY). */
+ int p_flag; /* P_* flags. */
+ char p_stat; /* S* process status. */
+ pid_t p_pid; /* Process identifier. */
+ pid_t p_oppid; /* Save parent pid during ptrace. XXX */
+ int p_dupfd; /* Sideways return value from fdopen. XXX */
+ /* Mach related */
+ uint32_t user_stack; /* where user stack was allocated */
+ uint32_t exit_thread; /* XXX Which thread is exiting? */
+ int p_debugger; /* allow to debug */
+ boolean_t sigwait; /* indication to suspend */
+ /* scheduling */
+ u_int p_estcpu; /* Time averaged value of p_cpticks. */
+ int p_cpticks; /* Ticks of cpu time. */
+ fixpt_t p_pctcpu; /* %cpu for this process during p_swtime */
+ uint32_t p_wchan; /* Sleep address. */
+ uint32_t p_wmesg; /* Reason for sleep. */
+ u_int p_swtime; /* Time swapped in or out. */
+ u_int p_slptime; /* Time since last blocked. */
+ struct user32_itimerval p_realtimer; /* Alarm timer. */
+ struct user32_timeval p_rtime; /* Real time. */
+ u_quad_t p_uticks; /* Statclock hits in user mode. */
+ u_quad_t p_sticks; /* Statclock hits in system mode. */
+ u_quad_t p_iticks; /* Statclock hits processing intr. */
+ int p_traceflag; /* Kernel trace points. */
+ uint32_t p_tracep; /* Trace to vnode. */
+ int p_siglist; /* DEPRECATED */
+ uint32_t p_textvp; /* Vnode of executable. */
+ int p_holdcnt; /* If non-zero, don't swap. */
+ sigset_t p_sigmask; /* DEPRECATED. */
+ sigset_t p_sigignore; /* Signals being ignored. */
+ sigset_t p_sigcatch; /* Signals being caught by user. */
+ u_char p_priority; /* Process priority. */
+ u_char p_usrpri; /* User-priority based on p_cpu and p_nice. */
+ char p_nice; /* Process "nice" value. */
+ char p_comm[MAXCOMLEN+1];
+ uint32_t p_pgrp; /* Pointer to process group. */
+ uint32_t p_addr; /* Kernel virtual addr of u-area (PROC ONLY). */
+ u_short p_xstat; /* Exit status for wait; also stop signal. */
+ u_short p_acflag; /* Accounting flags. */
+ uint32_t p_ru; /* Exit information. XXX */
+};
+#pragma pack()
+struct user64_extern_proc {
union {
struct {
user_addr_t __p_forw; /* Doubly-linked run/sleep queue. */
user_addr_t __p_back;
} p_st1;
- struct user_timeval __p_starttime; /* process start time */
+ struct user64_timeval __p_starttime; /* process start time */
} p_un;
user_addr_t p_vmspace; /* Address space. */
user_addr_t p_sigacts; /* Signal actions, state (PROC ONLY). */
user_addr_t p_wmesg; /* Reason for sleep. */
u_int p_swtime; /* Time swapped in or out. */
u_int p_slptime; /* Time since last blocked. */
- struct user_itimerval p_realtimer; /* Alarm timer. */
- struct user_timeval p_rtime; /* Real time. */
+ struct user64_itimerval p_realtimer; /* Alarm timer. */
+ struct user64_timeval p_rtime; /* Real time. */
u_quad_t p_uticks; /* Statclock hits in user mode. */
u_quad_t p_sticks; /* Statclock hits in system mode. */
u_quad_t p_iticks; /* Statclock hits processing intr. */
*/
extern int nprocs, maxproc; /* Current and max number of procs. */
extern int maxprocperuid; /* Current number of procs per uid */
-__private_extern__ int hard_maxproc; /* hard limit */
+extern int hard_maxproc; /* hard limit */
+extern unsigned int proc_shutdown_exitcount;
#define PID_MAX 99999
#define NO_PID 100000
extern lck_mtx_t * proc_list_mlock;
extern lck_mtx_t * proc_klist_mlock;
+#define BSD_SIMUL_EXECS 33 /* 32 , allow for rounding */
+#define BSD_PAGEABLE_SIZE_PER_EXEC (NCARGS + PAGE_SIZE + PAGE_SIZE) /* page for apple vars, page for executable header */
+extern int execargs_cache_size;
+extern int execargs_free_count;
+extern vm_offset_t * execargs_cache;
+
#define SESS_LEADER(p, sessp) ((sessp)->s_leader == (p))
/* Lock and unlock a login context. */
extern u_long sesshash;
extern lck_grp_t * proc_lck_grp;
+#if CONFIG_FINE_LOCK_GROUPS
+extern lck_grp_t * proc_mlock_grp;
+extern lck_grp_t * proc_fdmlock_grp;
+extern lck_grp_t * proc_slock_grp;
+#endif
extern lck_grp_attr_t * proc_lck_grp_attr;
extern lck_attr_t * proc_lck_attr;
extern struct proclist allproc; /* List of all processes. */
extern struct proclist zombproc; /* List of zombie processes. */
extern struct proc *initproc;
-extern void procinit(void) __attribute__((section("__TEXT, initcode")));
+extern void procinit(void);
extern void proc_lock(struct proc *);
extern void proc_unlock(struct proc *);
extern void proc_spinlock(struct proc *);
char *cr_name, size_t cr_name_len);
extern int isinferior(struct proc *, struct proc *);
__private_extern__ struct proc *pzfind(pid_t); /* Find zombie by id. */
+__private_extern__ struct proc *proc_find_zombref(pid_t); /* Find zombie by id. */
+__private_extern__ void proc_drop_zombref(struct proc * p); /* Find zombie by id. */
+
extern struct lctx *lcfind(pid_t); /* Find a login context by id */
extern struct lctx *lccreate(void); /* Create a new login context */
extern int tsleep0(void *chan, int pri, const char *wmesg, int timo, int (*continuation)(int));
extern int tsleep1(void *chan, int pri, const char *wmesg, u_int64_t abstime, int (*continuation)(int));
extern int msleep0(void *chan, lck_mtx_t *mtx, int pri, const char *wmesg, int timo, int (*continuation)(int));
-extern void vfork_return(struct proc *child, register_t *retval, int rval);
+extern void vfork_return(struct proc *child, int32_t *retval, int rval);
extern int exit1(struct proc *, int, int *);
+extern int exit1_internal(struct proc *, int, int *, boolean_t, boolean_t, int);
+extern int fork1(proc_t, thread_t *, int, coalition_t);
extern void vfork_exit_internal(struct proc *p, int rv, int forced);
extern void proc_reparentlocked(struct proc *child, struct proc * newparent, int cansignal, int locked);
extern int pgrp_iterate(struct pgrp * pgrp, int flags, int (*callout)(proc_t , void *), void *arg, int (*filterfn)(proc_t , void *), void *filterarg);
extern int proc_iterate(int flags, int (*callout)(proc_t , void *), void *arg, int (*filterfn)(proc_t , void *), void *filterarg);
extern int proc_rebootscan(int (*callout)(proc_t , void *), void *arg, int (*filterfn)(proc_t , void *), void *filterarg);
extern int proc_childrenwalk(proc_t p, int (*callout)(proc_t , void *), void *arg);
-extern proc_t proc_findinternal(int pid, int funneled);
+extern proc_t proc_findinternal(int pid, int locked);
+extern proc_t proc_findthread(thread_t thread);
extern void proc_refdrain(proc_t);
extern void proc_childdrainlocked(proc_t);
extern void proc_childdrainstart(proc_t);
int itimerdecr(struct proc * p, struct itimerval *itp, int usec);
void proc_signalstart(struct proc *, int locked);
void proc_signalend(struct proc *, int locked);
-void proc_transstart(struct proc *, int locked);
+int proc_transstart(struct proc *, int locked, int non_blocking);
+void proc_transcommit(struct proc *, int locked);
void proc_transend(struct proc *, int locked);
-void proc_transwait(struct proc *, int locked);
+int proc_transwait(struct proc *, int locked);
void proc_rele_locked(struct proc * p);
+struct proc *proc_ref_locked(struct proc * p);
void proc_knote(struct proc * p, long hint);
+void proc_knote_drain(struct proc *p);
void workqueue_init_lock(proc_t p);
void workqueue_destroy_lock(proc_t p);
+void proc_setregister(proc_t p);
+void proc_resetregister(proc_t p);
+/* returns the first thread_t in the process, or NULL XXX for NFS, DO NOT USE */
+thread_t proc_thread(proc_t);
+extern int proc_pendingsignals(proc_t, sigset_t);
+int proc_getpcontrol(int pid, int * pcontrolp);
+int proc_dopcontrol(proc_t p);
+int proc_resetpcontrol(int pid);
+#if PSYNCH
+void pth_proc_hashinit(proc_t);
+void pth_proc_hashdelete(proc_t);
+void pth_global_hashinit(void);
+extern thread_call_t psynch_thcall;
+void psynch_wq_cleanup(__unused void * param, __unused void * param1);
+extern lck_mtx_t * pthread_list_mlock;
+#endif /* PSYNCH */
+struct uthread * current_uthread(void);
+
+/* return 1 if process is forcing case-sensitive HFS+ access, 0 for default */
+extern int proc_is_forcing_hfs_case_sensitivity(proc_t);
+
+pid_t dtrace_proc_selfpid(void);
+pid_t dtrace_proc_selfppid(void);
+uid_t dtrace_proc_selfruid(void);
#endif /* !_SYS_PROC_INTERNAL_H_ */
projects / apple / xnu.git / blobdiff