4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
21 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
22 /* All Rights Reserved */
26 * Copyright 2010 Sun Microsystems, Inc. All rights reserved.
27 * Use is subject to license terms.
33 #include <sys/types.h>
34 #include <sys/t_lock.h>
36 #include <sys/dditypes.h>
43 * The pc_t is the type of the kernel's program counter. In general, a
44 * pc_t is a uintptr_t -- except for a sparcv9 kernel, in which case all
45 * instruction text is below 4G, and a pc_t is thus a uint32_t.
48 typedef uint32_t pc_t
;
50 typedef uintptr_t pc_t
;
54 * Random set of variables used by more than one routine.
58 #include <sys/varargs.h>
59 #include <sys/uadmin.h>
61 extern int hz
; /* system clock rate */
62 extern struct vnode
*rootdir
; /* pointer to vnode of root directory */
63 extern struct vnode
*devicesdir
; /* pointer to /devices vnode */
64 extern int interrupts_unleashed
; /* set after the spl0() in main() */
66 extern char runin
; /* scheduling flag */
67 extern char runout
; /* scheduling flag */
68 extern char wake_sched
; /* causes clock to wake swapper on next tick */
69 extern char wake_sched_sec
; /* causes clock to wake swapper after a sec */
71 extern pgcnt_t maxmem
; /* max available memory (pages) */
72 extern pgcnt_t physmem
; /* physical memory (pages) on this CPU */
73 extern pfn_t physmax
; /* highest numbered physical page present */
74 extern pgcnt_t physinstalled
; /* physical pages including PROM/boot use */
76 extern caddr_t s_text
; /* start of kernel text segment */
77 extern caddr_t e_text
; /* end of kernel text segment */
78 extern caddr_t s_data
; /* start of kernel text segment */
79 extern caddr_t e_data
; /* end of kernel text segment */
81 extern pgcnt_t availrmem
; /* Available resident (not swapable) */
82 /* memory in pages. */
83 extern pgcnt_t availrmem_initial
; /* initial value of availrmem */
84 extern pgcnt_t segspt_minfree
; /* low water mark for availrmem in seg_spt */
85 extern pgcnt_t freemem
; /* Current free memory. */
87 extern dev_t rootdev
; /* device of the root */
88 extern struct vnode
*rootvp
; /* vnode of root device */
89 extern boolean_t root_is_svm
; /* root is a mirrored device flag */
90 extern boolean_t root_is_ramdisk
; /* root is boot_archive ramdisk */
91 extern uint32_t ramdisk_size
; /* (KB) set only for sparc netboots */
92 extern char *volatile panicstr
; /* panic string pointer */
93 extern va_list panicargs
; /* panic arguments */
94 extern volatile int quiesce_active
; /* quiesce(9E) is in progress */
96 extern int rstchown
; /* 1 ==> restrictive chown(2) semantics */
99 extern int abort_enable
; /* Platform input-device abort policy */
101 extern int audit_active
; /* Solaris Auditing module state */
103 extern int avenrun
[]; /* array of load averages */
105 extern char *isa_list
; /* For sysinfo's isalist option */
107 extern int noexec_user_stack
; /* patchable via /etc/system */
108 extern int noexec_user_stack_log
; /* patchable via /etc/system */
111 * Use NFS client operations in the global zone only. Under contract with
112 * admin/install; do not change without coordinating with that consolidation.
114 extern int nfs_global_client_only
;
116 extern void report_stack_exec(proc_t
*, caddr_t
);
118 extern void startup(void);
119 extern void clkstart(void);
120 extern void post_startup(void);
121 extern void kern_setup1(void);
122 extern void ka_init(void);
123 extern void nodename_set(void);
126 * for tod fault detection
128 enum tod_fault_type
{
137 #define TOD_GET_FAILED 0x1 /* TOD could not be read */
138 #define TOD_SET_DONE 0x2 /* TOD has been modified */
139 #define TOD_CPR_RESUME_DONE 0x4 /* CPR resume has occurred */
140 #define TOD_DR_RESUME_DONE 0x8 /* DR resume has occurred */
142 extern time_t tod_validate(time_t);
143 extern void tod_status_set(int);
144 extern void tod_status_clear(int);
145 extern void plat_tod_fault(enum tod_fault_type
);
156 uint_t
umin(uint_t
, uint_t
);
157 uint_t
umax(uint_t
, uint_t
);
160 int grow_internal(caddr_t
, uint_t
);
161 int brk_internal(caddr_t
, uint_t
);
162 typedef uint64_t callout_id_t
;
163 timeout_id_t
timeout(void (*)(void *), void *, clock_t);
164 timeout_id_t
realtime_timeout(void (*)(void *), void *, clock_t);
165 clock_t untimeout(timeout_id_t
);
167 * The last argument to timeout_generic() is flags. See callo.h for the
170 callout_id_t
timeout_generic(int, void (*)(void *), void *, hrtime_t
, hrtime_t
,
172 callout_id_t
timeout_default(void (*)(void *), void *, clock_t);
173 callout_id_t
realtime_timeout_default(void (*)(void *), void *, clock_t);
175 * The last argument to untimeout_generic() is flags. See callout.c for the
178 hrtime_t
untimeout_generic(callout_id_t
, int);
179 clock_t untimeout_default(callout_id_t
, int);
181 int delay_sig(clock_t);
182 void delay_random(clock_t);
185 major_t
getudev(void);
186 int cmpldev(dev32_t
*, dev_t
);
187 dev_t
expldev(dev32_t
);
188 int bcmp(const void *, const void *, size_t) __PURE
;
190 void numtos(ulong_t
, char *);
191 char *kmem_asprintf(const char *fmt
, ...);
192 int strident_valid(const char *);
193 void strident_canon(char *, size_t);
194 int getsubopt(char **optionsp
, char * const *tokens
, char **valuep
);
195 char *append_subopt(const char *, size_t, char *, const char *);
197 int copyin(const void *, void *, size_t);
198 void copyin_noerr(const void *, void *, size_t);
199 int xcopyin(const void *, void *, size_t);
200 int xcopyin_nta(const void *, void *, size_t, int);
201 int copyout(const void *, void *, size_t);
202 void copyout_noerr(const void *, void *, size_t);
203 int xcopyout(const void *, void *, size_t);
204 int xcopyout_nta(const void *, void *, size_t, int);
205 int copyinstr(const char *, char *, size_t, size_t *);
206 int copyinstr_noerr(const char *, char *, size_t, size_t *);
207 int copyoutstr(const char *, char *, size_t, size_t *);
208 int copyoutstr_noerr(const char *, char *, size_t, size_t *);
209 int copystr(const char *, char *, size_t, size_t *);
210 void ucopy(const void *, void *, size_t);
211 void ucopystr(const char *, char *, size_t, size_t *);
212 void pgcopy(const void *, void *, size_t);
213 void ovbcopy(const void *, void *, size_t);
214 void uzero(void *, size_t);
215 int kcopy(const void *, void *, size_t);
216 int kcopy_nta(const void *, void *, size_t, int);
217 int kzero(void *, size_t);
219 int fuword8(const void *, uint8_t *);
220 int fuword16(const void *, uint16_t *);
221 int fuword32(const void *, uint32_t *);
222 int fulword(const void *, ulong_t
*);
223 void fuword8_noerr(const void *, uint8_t *);
224 void fuword16_noerr(const void *, uint16_t *);
225 void fuword32_noerr(const void *, uint32_t *);
226 void fulword_noerr(const void *, ulong_t
*);
229 int fuword64(const void *, uint64_t *);
230 void fuword64_noerr(const void *, uint64_t *);
233 int subyte(void *, uint8_t);
234 int suword8(void *, uint8_t);
235 int suword16(void *, uint16_t);
236 int suword32(void *, uint32_t);
237 int sulword(void *, ulong_t
);
238 void subyte_noerr(void *, uint8_t);
239 void suword8_noerr(void *, uint8_t);
240 void suword16_noerr(void *, uint16_t);
241 void suword32_noerr(void *, uint32_t);
242 void sulword_noerr(void *, ulong_t
);
245 int suword64(void *, uint64_t);
246 void suword64_noerr(void *, uint64_t);
250 int setjmp(label_t
*) __RETURNS_TWICE
;
251 extern void longjmp(label_t
*)
253 #pragma unknown_control_flow(setjmp)
256 void prefetch_read_once(void *);
257 void prefetch_write_once(void *);
258 void prefetch_read_many(void *);
259 void prefetch_write_many(void *);
260 caddr_t
caller(void);
261 caddr_t
callee(void);
262 int getpcstack(pc_t
*, int);
263 int on_fault(label_t
*) __RETURNS_TWICE
;
266 int scanc(size_t, uchar_t
*, uchar_t
*, uchar_t
);
267 int movtuc(size_t, uchar_t
*, uchar_t
*, uchar_t
*);
277 void set_base_spl(void);
281 void softcall_init(void);
282 void softcall(void (*)(void *), void *);
285 extern void sync_icache(caddr_t
, uint_t
);
286 extern void sync_data_memory(caddr_t
, size_t);
287 extern void hot_patch_kernel_text(caddr_t
, uint32_t, uint_t
);
289 void _insque(caddr_t
, caddr_t
);
290 void _remque(caddr_t
);
292 /* casts to keep lint happy */
293 #define insque(q, p) _insque((caddr_t)q, (caddr_t)p)
294 #define remque(q) _remque((caddr_t)q)
296 #pragma unknown_control_flow(on_fault)
299 extern void uniqtime(struct timeval
*);
301 extern void uniqtime32(struct timeval32
*);
303 uint_t
page_num_pagesizes(void);
304 size_t page_get_pagesize(uint_t n
);
309 extern void param_preset(void);
310 extern void param_calc(int);
311 extern void param_init(void);
312 extern void param_check(void);
317 * Structure of the system-entry table.
319 * Changes to struct sysent should maintain binary compatibility with
320 * loadable system calls, although the interface is currently private.
322 * This means it should only be expanded on the end, and flag values
323 * should not be reused.
325 * It is desirable to keep the size of this struct a power of 2 for quick
329 char sy_narg
; /* total number of arguments */
331 unsigned short sy_flags
; /* various flags as defined below */
333 unsigned char sy_flags
; /* various flags as defined below */
335 int (*sy_call
)(); /* argp, rvalp-style handler */
336 krwlock_t
*sy_lock
; /* lock for loadable system calls */
337 int64_t (*sy_callc
)(); /* C-style call hander or wrapper */
340 extern struct sysent sysent
[];
341 #ifdef _SYSCALL32_IMPL
342 extern struct sysent sysent32
[];
345 extern struct sysent nosys_ent
; /* entry for invalid system call */
347 #define NSYSCALL 256 /* number of system calls */
349 #define LOADABLE_SYSCALL(s) (s->sy_flags & SE_LOADABLE)
350 #define LOADED_SYSCALL(s) (s->sy_flags & SE_LOADED)
354 * Values 1, 2, and 4 were used previously for SETJUMP, ASYNC, and IOSYS.
356 #define SE_32RVAL1 0x0 /* handler returns int32_t in rval1 */
357 #define SE_32RVAL2 0x1 /* handler returns int32_t in rval2 */
358 #define SE_64RVAL 0x2 /* handler returns int64_t in rvals */
359 #define SE_RVAL_MASK 0x3 /* mask of rval_t bits */
361 #define SE_LOADABLE 0x08 /* syscall is loadable */
362 #define SE_LOADED 0x10 /* syscall is completely loaded */
363 #define SE_NOUNLOAD 0x20 /* syscall never needs unload */
364 #define SE_ARGC 0x40 /* syscall takes C-style args */
367 * Structure of the return-value parameter passed by reference to
380 #define r_val1 r_v.r_v1
381 #define r_val2 r_v.r_v2
383 typedef union rval rval_t
;
387 extern void reset_syscall_args(void);
388 extern int save_syscall_args(void);
389 extern uint_t
get_syscall_args(klwp_t
*lwp
, long *argp
, int *nargsp
);
390 #ifdef _SYSCALL32_IMPL
391 extern uint_t
get_syscall32_args(klwp_t
*lwp
, int *argp
, int *nargp
);
394 extern uint_t
set_errno(uint_t error
);
395 #pragma rarely_called(set_errno)
397 extern int64_t syscall_ap(void);
398 extern int64_t loadable_syscall(long, long, long, long, long, long, long, long);
399 extern int64_t nosys(void);
401 extern void swtch(void);
403 extern uint_t kcpc_key
; /* TSD key for performance counter context */
406 * initname holds the path to init and is used as a point of rendezvous
407 * between krtld (which processes the boot arguments) and the kernel.
409 #define INITNAME_SZ 32
410 extern char initname
[INITNAME_SZ
];
413 * initargs holds the arguments to init (such as -v, -s, -r, -m verbose) and
414 * is a point of rendezvous between krtld (which processes the boot arguments)
417 extern char initargs
[BOOTARGS_MAX
];
419 extern int exec_init(const char *, const char *);
420 extern int start_init_common(void);
424 #if defined(_KERNEL) || defined(_BOOT)
426 size_t strlcat(char *, const char *, size_t);
427 size_t strlen(const char *) __PURE
;
428 char *strcat(char *, const char *);
429 char *strncat(char *, const char *, size_t);
430 char *strcpy(char *, const char *);
431 char *strncpy(char *, const char *, size_t);
432 /* Need to be consistent with <string.h> C++ definitions */
433 #if __cplusplus >= 199711L
434 extern const char *strchr(const char *, int);
435 #ifndef _STRCHR_INLINE
436 #define _STRCHR_INLINE
438 inline char *strchr(char *__s
, int __c
) {
439 return (char *)strchr((const char *)__s
, __c
);
442 #endif /* _STRCHR_INLINE */
443 extern const char *strrchr(const char *, int);
444 #ifndef _STRRCHR_INLINE
445 #define _STRRCHR_INLINE
447 inline char *strrchr(char *__s
, int __c
) {
448 return (char *)strrchr((const char *)__s
, __c
);
451 #endif /* _STRRCHR_INLINE */
452 extern const char *strstr(const char *, const char *);
453 #ifndef _STRSTR_INLINE
454 #define _STRSTR_INLINE
456 inline char *strstr(char *__s1
, const char *__s2
) {
457 return (char *)strstr((const char *)__s1
, __s2
);
460 #endif /* _STRSTR_INLINE */
461 #else /* __cplusplus >= 199711L */
462 char *strchr(const char *, int);
463 char *strrchr(const char *, int);
464 char *strstr(const char *, const char *);
465 #endif /* __cplusplus >= 199711L */
466 char *strnrchr(const char *, int, size_t);
467 int strcmp(const char *, const char *) __PURE
;
468 int strncmp(const char *, const char *, size_t) __PURE
;
469 int strcasecmp(const char *, const char *) __PURE
;
470 int strncasecmp(const char *, const char *, size_t) __PURE
;
471 /* Need to be consistent with <string.h> C++ definitions */
472 #if __cplusplus >= 199711L
473 extern const char *strpbrk(const char *, const char *);
474 #ifndef _STRPBRK_INLINE
475 #define _STRPBRK_INLINE
477 inline char *strpbrk(char *__s1
, const char *__s2
) {
478 return (char *)strpbrk((const char *)__s1
, __s2
);
481 #endif /* _STRPBRK_INLINE */
482 #else /* __cplusplus >= 199711L */
483 char *strpbrk(const char *, const char *);
484 #endif /* __cplusplus >= 199711L */
485 void bcopy(const void *, void *, size_t);
486 void bzero(void *, size_t);
488 extern void *memset(void *, int, size_t);
489 extern void *memcpy(void *, const void *, size_t);
490 extern void *memmove(void *, const void *, size_t);
491 extern int memcmp(const void *, const void *, size_t);
494 extern int __lintzero
; /* for spoofing lint */
498 #endif /* _KERNEL || _BOOT */
504 #endif /* _SYS_SYSTM_H */