10Sstevel@tonic-gate /* 20Sstevel@tonic-gate * CDDL HEADER START 30Sstevel@tonic-gate * 40Sstevel@tonic-gate * The contents of this file are subject to the terms of the 50Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 60Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 70Sstevel@tonic-gate * with the License. 80Sstevel@tonic-gate * 90Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 100Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 110Sstevel@tonic-gate * See the License for the specific language governing permissions 120Sstevel@tonic-gate * and limitations under the License. 130Sstevel@tonic-gate * 140Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 150Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 160Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 170Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 180Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 190Sstevel@tonic-gate * 200Sstevel@tonic-gate * CDDL HEADER END 210Sstevel@tonic-gate */ 220Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 230Sstevel@tonic-gate /* All Rights Reserved */ 240Sstevel@tonic-gate 250Sstevel@tonic-gate 260Sstevel@tonic-gate /* 270Sstevel@tonic-gate * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 280Sstevel@tonic-gate * Use is subject to license terms. 290Sstevel@tonic-gate */ 300Sstevel@tonic-gate 310Sstevel@tonic-gate #ifndef _SYS_SYSTM_H 320Sstevel@tonic-gate #define _SYS_SYSTM_H 330Sstevel@tonic-gate 340Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 350Sstevel@tonic-gate 360Sstevel@tonic-gate #include <sys/types.h> 370Sstevel@tonic-gate #include <sys/t_lock.h> 380Sstevel@tonic-gate #include <sys/proc.h> 390Sstevel@tonic-gate #include <sys/dditypes.h> 400Sstevel@tonic-gate 410Sstevel@tonic-gate #ifdef __cplusplus 420Sstevel@tonic-gate extern "C" { 430Sstevel@tonic-gate #endif 440Sstevel@tonic-gate 450Sstevel@tonic-gate /* 460Sstevel@tonic-gate * The pc_t is the type of the kernel's program counter. In general, a 470Sstevel@tonic-gate * pc_t is a uintptr_t -- except for a sparcv9 kernel, in which case all 480Sstevel@tonic-gate * instruction text is below 4G, and a pc_t is thus a uint32_t. 490Sstevel@tonic-gate */ 500Sstevel@tonic-gate #ifdef __sparcv9 510Sstevel@tonic-gate typedef uint32_t pc_t; 520Sstevel@tonic-gate #else 530Sstevel@tonic-gate typedef uintptr_t pc_t; 540Sstevel@tonic-gate #endif 550Sstevel@tonic-gate 560Sstevel@tonic-gate /* 570Sstevel@tonic-gate * Random set of variables used by more than one routine. 580Sstevel@tonic-gate */ 590Sstevel@tonic-gate 600Sstevel@tonic-gate #ifdef _KERNEL 610Sstevel@tonic-gate #include <sys/varargs.h> 620Sstevel@tonic-gate 630Sstevel@tonic-gate extern int hz; /* system clock rate */ 640Sstevel@tonic-gate extern struct vnode *rootdir; /* pointer to vnode of root directory */ 650Sstevel@tonic-gate extern struct vnode *devicesdir; /* pointer to /devices vnode */ 660Sstevel@tonic-gate extern volatile clock_t lbolt; /* time in HZ since last boot */ 670Sstevel@tonic-gate extern volatile int64_t lbolt64; /* lbolt computed as 64-bit value */ 680Sstevel@tonic-gate extern int interrupts_unleashed; /* set after the spl0() in main() */ 690Sstevel@tonic-gate 700Sstevel@tonic-gate extern char runin; /* scheduling flag */ 710Sstevel@tonic-gate extern char runout; /* scheduling flag */ 720Sstevel@tonic-gate extern char wake_sched; /* causes clock to wake swapper on next tick */ 730Sstevel@tonic-gate extern char wake_sched_sec; /* causes clock to wake swapper after a sec */ 740Sstevel@tonic-gate 750Sstevel@tonic-gate extern pgcnt_t maxmem; /* max available memory (pages) */ 760Sstevel@tonic-gate extern pgcnt_t physmem; /* physical memory (pages) on this CPU */ 770Sstevel@tonic-gate extern pfn_t physmax; /* highest numbered physical page present */ 780Sstevel@tonic-gate extern pgcnt_t physinstalled; /* physical pages including PROM/boot use */ 790Sstevel@tonic-gate 800Sstevel@tonic-gate extern caddr_t s_text; /* start of kernel text segment */ 810Sstevel@tonic-gate extern caddr_t e_text; /* end of kernel text segment */ 820Sstevel@tonic-gate extern caddr_t s_data; /* start of kernel text segment */ 830Sstevel@tonic-gate extern caddr_t e_data; /* end of kernel text segment */ 840Sstevel@tonic-gate 850Sstevel@tonic-gate extern pgcnt_t availrmem; /* Available resident (not swapable) */ 860Sstevel@tonic-gate /* memory in pages. */ 870Sstevel@tonic-gate extern pgcnt_t availrmem_initial; /* initial value of availrmem */ 880Sstevel@tonic-gate extern pgcnt_t segspt_minfree; /* low water mark for availrmem in seg_spt */ 890Sstevel@tonic-gate extern pgcnt_t freemem; /* Current free memory. */ 900Sstevel@tonic-gate 910Sstevel@tonic-gate extern dev_t rootdev; /* device of the root */ 920Sstevel@tonic-gate extern struct vnode *rootvp; /* vnode of root device */ 930Sstevel@tonic-gate extern int root_is_svm; /* root is a mirrored device flag */ 940Sstevel@tonic-gate extern char *volatile panicstr; /* panic string pointer */ 950Sstevel@tonic-gate extern va_list panicargs; /* panic arguments */ 960Sstevel@tonic-gate 970Sstevel@tonic-gate extern int rstchown; /* 1 ==> restrictive chown(2) semantics */ 980Sstevel@tonic-gate extern int klustsize; 990Sstevel@tonic-gate 1000Sstevel@tonic-gate extern int abort_enable; /* Platform input-device abort policy */ 1010Sstevel@tonic-gate 1020Sstevel@tonic-gate #ifdef C2_AUDIT 1030Sstevel@tonic-gate extern int audit_active; /* C2 auditing activate 1, absent 0. */ 1040Sstevel@tonic-gate #endif 1050Sstevel@tonic-gate 1060Sstevel@tonic-gate extern int avenrun[]; /* array of load averages */ 1070Sstevel@tonic-gate 1080Sstevel@tonic-gate extern char *isa_list; /* For sysinfo's isalist option */ 1090Sstevel@tonic-gate 1100Sstevel@tonic-gate extern int noexec_user_stack; /* patchable via /etc/system */ 1110Sstevel@tonic-gate extern int noexec_user_stack_log; /* patchable via /etc/system */ 1120Sstevel@tonic-gate 113*766Scarlsonj /* 114*766Scarlsonj * Use NFS client operations in the global zone only. Under contract with 115*766Scarlsonj * admin/install; do not change without coordinating with that consolidation. 116*766Scarlsonj */ 117*766Scarlsonj extern int nfs_global_client_only; 118*766Scarlsonj 1190Sstevel@tonic-gate extern void report_stack_exec(proc_t *, caddr_t); 1200Sstevel@tonic-gate 1210Sstevel@tonic-gate extern void startup(void); 1220Sstevel@tonic-gate extern void clkstart(void); 1230Sstevel@tonic-gate extern void post_startup(void); 1240Sstevel@tonic-gate extern void kern_setup1(void); 1250Sstevel@tonic-gate extern void ka_init(void); 1260Sstevel@tonic-gate extern void nodename_set(void); 1270Sstevel@tonic-gate 1280Sstevel@tonic-gate /* 1290Sstevel@tonic-gate * for tod fault detection 1300Sstevel@tonic-gate */ 1310Sstevel@tonic-gate enum tod_fault_type { 1320Sstevel@tonic-gate TOD_REVERSED = 0, 1330Sstevel@tonic-gate TOD_STALLED, 1340Sstevel@tonic-gate TOD_JUMPED, 1350Sstevel@tonic-gate TOD_RATECHANGED, 1360Sstevel@tonic-gate TOD_NOFAULT 1370Sstevel@tonic-gate }; 1380Sstevel@tonic-gate 1390Sstevel@tonic-gate extern time_t tod_validate(time_t); 1400Sstevel@tonic-gate extern void tod_fault_reset(void); 1410Sstevel@tonic-gate extern void plat_tod_fault(enum tod_fault_type); 1420Sstevel@tonic-gate 1430Sstevel@tonic-gate #ifndef _LP64 1440Sstevel@tonic-gate #ifndef min 1450Sstevel@tonic-gate int min(int, int); 1460Sstevel@tonic-gate #endif 1470Sstevel@tonic-gate 1480Sstevel@tonic-gate #ifndef max 1490Sstevel@tonic-gate int max(int, int); 1500Sstevel@tonic-gate #endif 1510Sstevel@tonic-gate 1520Sstevel@tonic-gate uint_t umin(uint_t, uint_t); 1530Sstevel@tonic-gate uint_t umax(uint_t, uint_t); 1540Sstevel@tonic-gate #endif /* !_LP64 */ 1550Sstevel@tonic-gate int grow(caddr_t); 1560Sstevel@tonic-gate int grow_internal(caddr_t, uint_t); 1570Sstevel@tonic-gate int brk_internal(caddr_t, uint_t); 1580Sstevel@tonic-gate timeout_id_t timeout(void (*)(void *), void *, clock_t); 1590Sstevel@tonic-gate timeout_id_t realtime_timeout(void (*)(void *), void *, clock_t); 1600Sstevel@tonic-gate clock_t untimeout(timeout_id_t); 1610Sstevel@tonic-gate void delay(clock_t); 1620Sstevel@tonic-gate int delay_sig(clock_t); 1630Sstevel@tonic-gate int nodev(); 1640Sstevel@tonic-gate int nulldev(); 1650Sstevel@tonic-gate major_t getudev(void); 1660Sstevel@tonic-gate int cmpldev(dev32_t *, dev_t); 1670Sstevel@tonic-gate dev_t expldev(dev32_t); 1680Sstevel@tonic-gate int bcmp(const void *, const void *, size_t) __PURE; 1690Sstevel@tonic-gate int stoi(char **); 1700Sstevel@tonic-gate void numtos(ulong_t, char *); 1710Sstevel@tonic-gate size_t strlen(const char *) __PURE; 1720Sstevel@tonic-gate char *strcat(char *, const char *); 1730Sstevel@tonic-gate char *strncat(char *, const char *, size_t); 1740Sstevel@tonic-gate char *strcpy(char *, const char *); 1750Sstevel@tonic-gate char *strncpy(char *, const char *, size_t); 1760Sstevel@tonic-gate /* Need to be consistent with <string.h> C++ definitions */ 1770Sstevel@tonic-gate #if __cplusplus >= 199711L 1780Sstevel@tonic-gate extern const char *strchr(const char *, int); 1790Sstevel@tonic-gate #ifndef _STRCHR_INLINE 1800Sstevel@tonic-gate #define _STRCHR_INLINE 1810Sstevel@tonic-gate extern "C++" { 1820Sstevel@tonic-gate inline char *strchr(char *__s, int __c) { 1830Sstevel@tonic-gate return (char *)strchr((const char *)__s, __c); 1840Sstevel@tonic-gate } 1850Sstevel@tonic-gate } 1860Sstevel@tonic-gate #endif /* _STRCHR_INLINE */ 1870Sstevel@tonic-gate extern const char *strrchr(const char *, int); 1880Sstevel@tonic-gate #ifndef _STRRCHR_INLINE 1890Sstevel@tonic-gate #define _STRRCHR_INLINE 1900Sstevel@tonic-gate extern "C++" { 1910Sstevel@tonic-gate inline char *strrchr(char *__s, int __c) { 1920Sstevel@tonic-gate return (char *)strrchr((const char *)__s, __c); 1930Sstevel@tonic-gate } 1940Sstevel@tonic-gate } 1950Sstevel@tonic-gate #endif /* _STRRCHR_INLINE */ 1960Sstevel@tonic-gate extern const char *strstr(const char *, const char *); 1970Sstevel@tonic-gate #ifndef _STRSTR_INLINE 1980Sstevel@tonic-gate #define _STRSTR_INLINE 1990Sstevel@tonic-gate extern "C++" { 2000Sstevel@tonic-gate inline char *strstr(char *__s1, const char *__s2) { 2010Sstevel@tonic-gate return (char *)strstr((const char *)__s1, __s2); 2020Sstevel@tonic-gate } 2030Sstevel@tonic-gate } 2040Sstevel@tonic-gate #endif /* _STRSTR_INLINE */ 2050Sstevel@tonic-gate #else /* __cplusplus >= 199711L */ 2060Sstevel@tonic-gate char *strchr(const char *, int); 2070Sstevel@tonic-gate char *strrchr(const char *, int); 2080Sstevel@tonic-gate char *strstr(const char *, const char *); 2090Sstevel@tonic-gate #endif /* __cplusplus >= 199711L */ 2100Sstevel@tonic-gate char *strnrchr(const char *, int, size_t); 2110Sstevel@tonic-gate int strcmp(const char *, const char *) __PURE; 2120Sstevel@tonic-gate int strncmp(const char *, const char *, size_t) __PURE; 2130Sstevel@tonic-gate int strcasecmp(const char *, const char *) __PURE; 2140Sstevel@tonic-gate int strncasecmp(const char *, const char *, size_t) __PURE; 2150Sstevel@tonic-gate /* Need to be consistent with <string.h> C++ definitions */ 2160Sstevel@tonic-gate #if __cplusplus >= 199711L 2170Sstevel@tonic-gate extern const char *strpbrk(const char *, const char *); 2180Sstevel@tonic-gate #ifndef _STRPBRK_INLINE 2190Sstevel@tonic-gate #define _STRPBRK_INLINE 2200Sstevel@tonic-gate extern "C++" { 2210Sstevel@tonic-gate inline char *strpbrk(char *__s1, const char *__s2) { 2220Sstevel@tonic-gate return (char *)strpbrk((const char *)__s1, __s2); 2230Sstevel@tonic-gate } 2240Sstevel@tonic-gate } 2250Sstevel@tonic-gate #endif /* _STRPBRK_INLINE */ 2260Sstevel@tonic-gate #else /* __cplusplus >= 199711L */ 2270Sstevel@tonic-gate char *strpbrk(const char *, const char *); 2280Sstevel@tonic-gate #endif /* __cplusplus >= 199711L */ 2290Sstevel@tonic-gate int strident_valid(const char *); 2300Sstevel@tonic-gate void strident_canon(char *, size_t); 2310Sstevel@tonic-gate int getsubopt(char **optionsp, char * const *tokens, char **valuep); 2320Sstevel@tonic-gate char *append_subopt(const char *, size_t, char *, const char *); 2330Sstevel@tonic-gate int ffs(long); 2340Sstevel@tonic-gate int copyin(const void *, void *, size_t); 2350Sstevel@tonic-gate void copyin_noerr(const void *, void *, size_t); 2360Sstevel@tonic-gate int xcopyin(const void *, void *, size_t); 2370Sstevel@tonic-gate int xcopyin_nta(const void *, void *, size_t, int); 2380Sstevel@tonic-gate int copyout(const void *, void *, size_t); 2390Sstevel@tonic-gate void copyout_noerr(const void *, void *, size_t); 2400Sstevel@tonic-gate int xcopyout(const void *, void *, size_t); 2410Sstevel@tonic-gate int xcopyout_nta(const void *, void *, size_t, int); 2420Sstevel@tonic-gate int copyinstr(const char *, char *, size_t, size_t *); 2430Sstevel@tonic-gate int copyinstr_noerr(const char *, char *, size_t, size_t *); 2440Sstevel@tonic-gate int copyoutstr(const char *, char *, size_t, size_t *); 2450Sstevel@tonic-gate int copyoutstr_noerr(const char *, char *, size_t, size_t *); 2460Sstevel@tonic-gate int copystr(const char *, char *, size_t, size_t *); 2470Sstevel@tonic-gate void bcopy(const void *, void *, size_t); 2480Sstevel@tonic-gate void ucopy(const void *, void *, size_t); 2490Sstevel@tonic-gate void pgcopy(const void *, void *, size_t); 2500Sstevel@tonic-gate void ovbcopy(const void *, void *, size_t); 2510Sstevel@tonic-gate void bzero(void *, size_t); 2520Sstevel@tonic-gate void uzero(void *, size_t); 2530Sstevel@tonic-gate int kcopy(const void *, void *, size_t); 2540Sstevel@tonic-gate int kcopy_nta(const void *, void *, size_t, int); 2550Sstevel@tonic-gate int kzero(void *, size_t); 2560Sstevel@tonic-gate 2570Sstevel@tonic-gate extern void *memset(void *, int, size_t); 2580Sstevel@tonic-gate extern void *memcpy(void *, const void *, size_t); 2590Sstevel@tonic-gate extern void *memmove(void *, const void *, size_t); 2600Sstevel@tonic-gate extern int memcmp(const void *, const void *, size_t); 2610Sstevel@tonic-gate 2620Sstevel@tonic-gate int fuword8(const void *, uint8_t *); 2630Sstevel@tonic-gate int fuword16(const void *, uint16_t *); 2640Sstevel@tonic-gate int fuword32(const void *, uint32_t *); 2650Sstevel@tonic-gate int fulword(const void *, ulong_t *); 2660Sstevel@tonic-gate void fuword8_noerr(const void *, uint8_t *); 2670Sstevel@tonic-gate void fuword16_noerr(const void *, uint16_t *); 2680Sstevel@tonic-gate void fuword32_noerr(const void *, uint32_t *); 2690Sstevel@tonic-gate void fulword_noerr(const void *, ulong_t *); 2700Sstevel@tonic-gate 2710Sstevel@tonic-gate #ifdef _LP64 2720Sstevel@tonic-gate int fuword64(const void *, uint64_t *); 2730Sstevel@tonic-gate void fuword64_noerr(const void *, uint64_t *); 2740Sstevel@tonic-gate #endif 2750Sstevel@tonic-gate 2760Sstevel@tonic-gate int subyte(void *, uint8_t); 2770Sstevel@tonic-gate int suword8(void *, uint8_t); 2780Sstevel@tonic-gate int suword16(void *, uint16_t); 2790Sstevel@tonic-gate int suword32(void *, uint32_t); 2800Sstevel@tonic-gate int sulword(void *, ulong_t); 2810Sstevel@tonic-gate void subyte_noerr(void *, uint8_t); 2820Sstevel@tonic-gate void suword8_noerr(void *, uint8_t); 2830Sstevel@tonic-gate void suword16_noerr(void *, uint16_t); 2840Sstevel@tonic-gate void suword32_noerr(void *, uint32_t); 2850Sstevel@tonic-gate void sulword_noerr(void *, ulong_t); 2860Sstevel@tonic-gate 2870Sstevel@tonic-gate #ifdef _LP64 2880Sstevel@tonic-gate int suword64(void *, uint64_t); 2890Sstevel@tonic-gate void suword64_noerr(void *, uint64_t); 2900Sstevel@tonic-gate #endif 2910Sstevel@tonic-gate 2920Sstevel@tonic-gate #if !defined(_BOOT) 2930Sstevel@tonic-gate int setjmp(label_t *); 2940Sstevel@tonic-gate extern void longjmp(label_t *) 2950Sstevel@tonic-gate __NORETURN; 2960Sstevel@tonic-gate #pragma unknown_control_flow(setjmp) 2970Sstevel@tonic-gate #endif 2980Sstevel@tonic-gate 2990Sstevel@tonic-gate caddr_t caller(void); 3000Sstevel@tonic-gate caddr_t callee(void); 3010Sstevel@tonic-gate int getpcstack(pc_t *, int); 3020Sstevel@tonic-gate int on_fault(label_t *); 3030Sstevel@tonic-gate void no_fault(void); 3040Sstevel@tonic-gate void halt(char *); 3050Sstevel@tonic-gate int scanc(size_t, uchar_t *, uchar_t *, uchar_t); 3060Sstevel@tonic-gate int movtuc(size_t, uchar_t *, uchar_t *, uchar_t *); 3070Sstevel@tonic-gate int splr(int); 3080Sstevel@tonic-gate int splhigh(void); 3090Sstevel@tonic-gate int splhi(void); 3100Sstevel@tonic-gate int splzs(void); 3110Sstevel@tonic-gate int spl0(void); 3120Sstevel@tonic-gate int spl6(void); 3130Sstevel@tonic-gate int spl7(void); 3140Sstevel@tonic-gate int spl8(void); 3150Sstevel@tonic-gate void splx(int); 3160Sstevel@tonic-gate void set_base_spl(void); 3170Sstevel@tonic-gate int __ipltospl(int); 3180Sstevel@tonic-gate 3190Sstevel@tonic-gate void softcall_init(void); 3200Sstevel@tonic-gate void softcall(void (*)(void *), void *); 3210Sstevel@tonic-gate void softint(void); 3220Sstevel@tonic-gate 3230Sstevel@tonic-gate extern void sync_icache(caddr_t, uint_t); 3240Sstevel@tonic-gate extern void sync_data_memory(caddr_t, size_t); 3250Sstevel@tonic-gate extern void hot_patch_kernel_text(caddr_t, uint32_t, uint_t); 3260Sstevel@tonic-gate 3270Sstevel@tonic-gate void _insque(caddr_t, caddr_t); 3280Sstevel@tonic-gate void _remque(caddr_t); 3290Sstevel@tonic-gate 3300Sstevel@tonic-gate /* casts to keep lint happy */ 3310Sstevel@tonic-gate #define insque(q, p) _insque((caddr_t)q, (caddr_t)p) 3320Sstevel@tonic-gate #define remque(q) _remque((caddr_t)q) 3330Sstevel@tonic-gate 3340Sstevel@tonic-gate #pragma unknown_control_flow(on_fault) 3350Sstevel@tonic-gate 3360Sstevel@tonic-gate struct timeval; 3370Sstevel@tonic-gate extern void uniqtime(struct timeval *); 3380Sstevel@tonic-gate struct timeval32; 3390Sstevel@tonic-gate extern void uniqtime32(struct timeval32 *); 3400Sstevel@tonic-gate 3410Sstevel@tonic-gate uint_t page_num_pagesizes(void); 3420Sstevel@tonic-gate size_t page_get_pagesize(uint_t n); 3430Sstevel@tonic-gate 3440Sstevel@tonic-gate extern int maxusers; 3450Sstevel@tonic-gate extern int pidmax; 3460Sstevel@tonic-gate 3470Sstevel@tonic-gate extern void param_preset(void); 3480Sstevel@tonic-gate extern void param_calc(int); 3490Sstevel@tonic-gate extern void param_init(void); 3500Sstevel@tonic-gate extern void param_check(void); 3510Sstevel@tonic-gate 3520Sstevel@tonic-gate #endif /* _KERNEL */ 3530Sstevel@tonic-gate 3540Sstevel@tonic-gate /* 3550Sstevel@tonic-gate * Structure of the system-entry table. 3560Sstevel@tonic-gate * 3570Sstevel@tonic-gate * Changes to struct sysent should maintain binary compatibility with 3580Sstevel@tonic-gate * loadable system calls, although the interface is currently private. 3590Sstevel@tonic-gate * 3600Sstevel@tonic-gate * This means it should only be expanded on the end, and flag values 3610Sstevel@tonic-gate * should not be reused. 3620Sstevel@tonic-gate * 3630Sstevel@tonic-gate * It is desirable to keep the size of this struct a power of 2 for quick 3640Sstevel@tonic-gate * indexing. 3650Sstevel@tonic-gate */ 3660Sstevel@tonic-gate struct sysent { 3670Sstevel@tonic-gate char sy_narg; /* total number of arguments */ 3680Sstevel@tonic-gate #ifdef _LP64 3690Sstevel@tonic-gate unsigned short sy_flags; /* various flags as defined below */ 3700Sstevel@tonic-gate #else 3710Sstevel@tonic-gate unsigned char sy_flags; /* various flags as defined below */ 3720Sstevel@tonic-gate #endif 3730Sstevel@tonic-gate int (*sy_call)(); /* argp, rvalp-style handler */ 3740Sstevel@tonic-gate krwlock_t *sy_lock; /* lock for loadable system calls */ 3750Sstevel@tonic-gate int64_t (*sy_callc)(); /* C-style call hander or wrapper */ 3760Sstevel@tonic-gate }; 3770Sstevel@tonic-gate 3780Sstevel@tonic-gate extern struct sysent sysent[]; 3790Sstevel@tonic-gate #ifdef _SYSCALL32_IMPL 3800Sstevel@tonic-gate extern struct sysent sysent32[]; 3810Sstevel@tonic-gate #endif 3820Sstevel@tonic-gate 3830Sstevel@tonic-gate extern struct sysent nosys_ent; /* entry for invalid system call */ 3840Sstevel@tonic-gate 3850Sstevel@tonic-gate #define NSYSCALL 256 /* number of system calls */ 3860Sstevel@tonic-gate 3870Sstevel@tonic-gate #define LOADABLE_SYSCALL(s) (s->sy_flags & SE_LOADABLE) 3880Sstevel@tonic-gate #define LOADED_SYSCALL(s) (s->sy_flags & SE_LOADED) 3890Sstevel@tonic-gate 3900Sstevel@tonic-gate /* 3910Sstevel@tonic-gate * sy_flags values 3920Sstevel@tonic-gate * Values 1, 2, and 4 were used previously for SETJUMP, ASYNC, and IOSYS. 3930Sstevel@tonic-gate */ 3940Sstevel@tonic-gate #define SE_32RVAL1 0x0 /* handler returns int32_t in rval1 */ 3950Sstevel@tonic-gate #define SE_32RVAL2 0x1 /* handler returns int32_t in rval2 */ 3960Sstevel@tonic-gate #define SE_64RVAL 0x2 /* handler returns int64_t in rvals */ 3970Sstevel@tonic-gate #define SE_RVAL_MASK 0x3 /* mask of rval_t bits */ 3980Sstevel@tonic-gate 3990Sstevel@tonic-gate #define SE_LOADABLE 0x08 /* syscall is loadable */ 4000Sstevel@tonic-gate #define SE_LOADED 0x10 /* syscall is completely loaded */ 4010Sstevel@tonic-gate #define SE_NOUNLOAD 0x20 /* syscall never needs unload */ 4020Sstevel@tonic-gate #define SE_ARGC 0x40 /* syscall takes C-style args */ 4030Sstevel@tonic-gate 4040Sstevel@tonic-gate /* 4050Sstevel@tonic-gate * Structure of the return-value parameter passed by reference to 4060Sstevel@tonic-gate * system entries. 4070Sstevel@tonic-gate */ 4080Sstevel@tonic-gate union rval { 4090Sstevel@tonic-gate struct { 4100Sstevel@tonic-gate int r_v1; 4110Sstevel@tonic-gate int r_v2; 4120Sstevel@tonic-gate } r_v; 4130Sstevel@tonic-gate off_t r_off; 4140Sstevel@tonic-gate offset_t r_offset; 4150Sstevel@tonic-gate time_t r_time; 4160Sstevel@tonic-gate int64_t r_vals; 4170Sstevel@tonic-gate }; 4180Sstevel@tonic-gate #define r_val1 r_v.r_v1 4190Sstevel@tonic-gate #define r_val2 r_v.r_v2 4200Sstevel@tonic-gate 4210Sstevel@tonic-gate typedef union rval rval_t; 4220Sstevel@tonic-gate 4230Sstevel@tonic-gate #ifdef _KERNEL 4240Sstevel@tonic-gate 4250Sstevel@tonic-gate extern void reset_syscall_args(void); 4260Sstevel@tonic-gate extern int save_syscall_args(void); 4270Sstevel@tonic-gate extern uint_t get_syscall_args(klwp_t *lwp, long *argp, int *nargsp); 4280Sstevel@tonic-gate #ifdef _SYSCALL32_IMPL 4290Sstevel@tonic-gate extern uint_t get_syscall32_args(klwp_t *lwp, int *argp, int *nargp); 4300Sstevel@tonic-gate #endif 4310Sstevel@tonic-gate 4320Sstevel@tonic-gate extern uint_t set_errno(uint_t error); 4330Sstevel@tonic-gate #pragma rarely_called(set_errno) 4340Sstevel@tonic-gate 4350Sstevel@tonic-gate extern int64_t syscall_ap(void); 4360Sstevel@tonic-gate extern int64_t loadable_syscall(long, long, long, long, long, long, long, long); 4370Sstevel@tonic-gate extern int64_t nosys(void); 4380Sstevel@tonic-gate 4390Sstevel@tonic-gate extern void swtch(void); 4400Sstevel@tonic-gate 4410Sstevel@tonic-gate extern uint_t kcpc_key; /* TSD key for performance counter context */ 4420Sstevel@tonic-gate 4430Sstevel@tonic-gate #ifdef __lint 4440Sstevel@tonic-gate extern int __lintzero; /* for spoofing lint */ 4450Sstevel@tonic-gate #endif 4460Sstevel@tonic-gate 4470Sstevel@tonic-gate 4480Sstevel@tonic-gate /* 4490Sstevel@tonic-gate * initname holds the path to init. It is defined by main.c, may be set by 4500Sstevel@tonic-gate * bootflags.c, and is used by main.c:exec_init(). 4510Sstevel@tonic-gate */ 4520Sstevel@tonic-gate #define INITNAME_SZ 32 4530Sstevel@tonic-gate #define INITARGS_SZ 80 4540Sstevel@tonic-gate 4550Sstevel@tonic-gate extern char initname[INITNAME_SZ]; 4560Sstevel@tonic-gate extern char initargs[INITARGS_SZ]; 4570Sstevel@tonic-gate 4580Sstevel@tonic-gate extern int exec_init(const char *, int, const char *); 4590Sstevel@tonic-gate 4600Sstevel@tonic-gate #endif /* _KERNEL */ 4610Sstevel@tonic-gate 4620Sstevel@tonic-gate #ifdef __cplusplus 4630Sstevel@tonic-gate } 4640Sstevel@tonic-gate #endif 4650Sstevel@tonic-gate 4660Sstevel@tonic-gate #endif /* _SYS_SYSTM_H */ 467