X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/593a1d5fd87cdf5b46dd5fcb84467b432cea0f91..060df5ea7c632b1ac8cc8aac1fb59758165c2084:/bsd/kern/bsd_init.c diff --git a/bsd/kern/bsd_init.c b/bsd/kern/bsd_init.c index cf4ee656a..e2868a40c 100644 --- a/bsd/kern/bsd_init.c +++ b/bsd/kern/bsd_init.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2007 Apple Inc. All rights reserved. + * Copyright (c) 2000-2009 Apple Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * @@ -24,8 +24,8 @@ * limitations under the License. * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ - */ -/* + * + * * Copyright (c) 1982, 1986, 1989, 1991, 1992, 1993 * The Regents of the University of California. All rights reserved. * (c) UNIX System Laboratories, Inc. @@ -95,7 +95,7 @@ #include #include -#include +#include #include #include @@ -105,6 +105,7 @@ #include #include #include +#include #include @@ -147,6 +148,9 @@ #include /* for kmem_suballoc() */ #include /* for psem_lock_init() */ #include /* for log_setsize() */ +#include /* for tty_init() */ +#include /* for utun_register_control() */ +#include /* for net_str_id_init() */ #include @@ -162,13 +166,19 @@ #include #endif +#if PFLOG +#include +#endif + #include void * get_user_regs(thread_t); /* XXX kludge for */ void IOKitInitializeTime(void); /* XXX */ +void IOSleep(unsigned int); /* XXX */ void loopattach(void); /* XXX */ +void vc_progress_set(boolean_t, uint32_t); /* XXX */ -char copyright[] = +const char copyright[] = "Copyright (c) 1982, 1986, 1989, 1991, 1993\n\t" "The Regents of the University of California. " "All rights reserved.\n\n"; @@ -204,10 +214,11 @@ char hostname[MAXHOSTNAMELEN]; int hostnamelen; char domainname[MAXDOMNAMELEN]; int domainnamelen; -#if __i386__ +#if defined(__i386__) || defined(__x86_64__) struct exec_archhandler exec_archhandler_ppc = { .path = "/usr/libexec/oah/translate", }; +const char * const kRosettaStandIn_str = "/usr/libexec/oah/RosettaNonGrata"; #else /* __i386__ */ struct exec_archhandler exec_archhandler_ppc; #endif /* __i386__ */ @@ -235,18 +246,27 @@ extern void bsd_bufferinit(void); extern int srv; extern int ncl; -#define BSD_SIMUL_EXECS 33 /* 32 , allow for rounding */ -#define BSD_PAGABLE_MAP_SIZE (BSD_SIMUL_EXECS * (NCARGS + PAGE_SIZE)) vm_map_t bsd_pageable_map; vm_map_t mb_map; -semaphore_t execve_semaphore; + +static int bsd_simul_execs = BSD_SIMUL_EXECS; +static int bsd_pageable_map_size = BSD_PAGABLE_MAP_SIZE; +__private_extern__ int execargs_cache_size = BSD_SIMUL_EXECS; +__private_extern__ int execargs_free_count = BSD_SIMUL_EXECS; +__private_extern__ vm_offset_t * execargs_cache = NULL; + +void bsd_exec_setup(int); + +/* + * Set to disable grading 64 bit Mach-o binaries as executable, for testing; + * Intel only. + */ +__private_extern__ int bootarg_no64exec = 0; int cmask = CMASK; extern int customnbuf; void bsd_init(void) __attribute__((section("__TEXT, initcode"))); -__private_extern__ void ubc_init(void ) __attribute__((section("__TEXT, initcode"))); -void vfsinit(void) __attribute__((section("__TEXT, initcode"))); kern_return_t bsd_autoconf(void) __attribute__((section("__TEXT, initcode"))); void bsd_utaskbootstrap(void) __attribute__((section("__TEXT, initcode"))); @@ -283,6 +303,13 @@ int turn_on_log_leaks = 0; extern void stackshot_lock_init(void); + +/* If we are using CONFIG_DTRACE */ +#if CONFIG_DTRACE + extern void dtrace_postinit(void); +#endif + + /* * Initialization code. * Called from cold start routine as @@ -314,19 +341,25 @@ struct rlimit vm_initial_limit_stack = { DFLSSIZ, MAXSSIZ - PAGE_SIZE }; struct rlimit vm_initial_limit_data = { DFLDSIZ, MAXDSIZ }; struct rlimit vm_initial_limit_core = { DFLCSIZ, MAXCSIZ }; -extern thread_t cloneproc(proc_t, int); +extern thread_t cloneproc(task_t, proc_t, int); extern int (*mountroot)(void); extern int netboot_mountroot(void); /* netboot.c */ extern int netboot_setup(void); lck_grp_t * proc_lck_grp; +lck_grp_t * proc_slock_grp; +lck_grp_t * proc_fdmlock_grp; +lck_grp_t * proc_mlock_grp; lck_grp_attr_t * proc_lck_grp_attr; lck_attr_t * proc_lck_attr; lck_mtx_t * proc_list_mlock; lck_mtx_t * proc_klist_mlock; +extern lck_mtx_t * execargs_cache_lock; + /* hook called after root is mounted XXX temporary hack */ void (*mountroot_post_hook)(void); +void (*unmountroot_pre_hook)(void); /* * This function is called very early on in the Mach startup, from the @@ -345,10 +378,9 @@ void (*mountroot_post_hook)(void); void bsd_init(void) { - proc_t p; struct uthread *ut; unsigned int i; -#if __i386__ +#if __i386__ || __x86_64__ int error; #endif struct vfs_context context; @@ -378,25 +410,28 @@ bsd_init(void) bsd_init_kprintf("calling procinit\n"); procinit(); - kernproc = &proc0; + /* Initialize the ttys (MUST be before kminit()/bsd_autoconf()!)*/ + tty_init(); - p = kernproc; + kernproc = &proc0; /* implicitly bzero'ed */ /* kernel_task->proc = kernproc; */ - set_bsdtask_info(kernel_task,(void *)p); - p->p_pid = 0; - p->p_ppid = 0; + set_bsdtask_info(kernel_task,(void *)kernproc); /* give kernproc a name */ bsd_init_kprintf("calling process_name\n"); - process_name("kernel_task", p); + process_name("kernel_task", kernproc); /* allocate proc lock group attribute and group */ bsd_init_kprintf("calling lck_grp_attr_alloc_init\n"); proc_lck_grp_attr= lck_grp_attr_alloc_init(); - - proc_lck_grp = lck_grp_alloc_init("proc", proc_lck_grp_attr); + proc_lck_grp = lck_grp_alloc_init("proc", proc_lck_grp_attr); +#ifndef CONFIG_EMBEDDED + proc_slock_grp = lck_grp_alloc_init("proc-slock", proc_lck_grp_attr); + proc_fdmlock_grp = lck_grp_alloc_init("proc-fdmlock", proc_lck_grp_attr); + proc_mlock_grp = lck_grp_alloc_init("proc-mlock", proc_lck_grp_attr); +#endif /* Allocate proc lock attribute */ proc_lck_attr = lck_attr_alloc_init(); #if 0 @@ -405,12 +440,26 @@ bsd_init(void) #endif #endif +#ifdef CONFIG_EMBEDDED proc_list_mlock = lck_mtx_alloc_init(proc_lck_grp, proc_lck_attr); proc_klist_mlock = lck_mtx_alloc_init(proc_lck_grp, proc_lck_attr); - lck_mtx_init(&p->p_mlock, proc_lck_grp, proc_lck_attr); - lck_mtx_init(&p->p_fdmlock, proc_lck_grp, proc_lck_attr); - lck_spin_init(&p->p_slock, proc_lck_grp, proc_lck_attr); + lck_mtx_init(&kernproc->p_mlock, proc_lck_grp, proc_lck_attr); + lck_mtx_init(&kernproc->p_fdmlock, proc_lck_grp, proc_lck_attr); + lck_spin_init(&kernproc->p_slock, proc_lck_grp, proc_lck_attr); +#else + proc_list_mlock = lck_mtx_alloc_init(proc_mlock_grp, proc_lck_attr); + proc_klist_mlock = lck_mtx_alloc_init(proc_mlock_grp, proc_lck_attr); + lck_mtx_init(&kernproc->p_mlock, proc_mlock_grp, proc_lck_attr); + lck_mtx_init(&kernproc->p_fdmlock, proc_fdmlock_grp, proc_lck_attr); + lck_spin_init(&kernproc->p_slock, proc_slock_grp, proc_lck_attr); +#endif + execargs_cache_lock = lck_mtx_alloc_init(proc_lck_grp, proc_lck_attr); + execargs_cache_size = bsd_simul_execs; + execargs_free_count = bsd_simul_execs; + execargs_cache = (vm_offset_t *)kalloc(bsd_simul_execs * sizeof(vm_offset_t)); + bzero(execargs_cache, bsd_simul_execs * sizeof(vm_offset_t)); + if (current_task() != kernel_task) printf("bsd_init: We have a problem, " "current task is not kernel task\n"); @@ -423,86 +472,96 @@ bsd_init(void) * Initialize the MAC Framework */ mac_policy_initbsd(); - p->p_mac_enforce = 0; + kernproc->p_mac_enforce = 0; #endif /* MAC */ /* * Create process 0. */ proc_list_lock(); - LIST_INSERT_HEAD(&allproc, p, p_list); - p->p_pgrp = &pgrp0; + LIST_INSERT_HEAD(&allproc, kernproc, p_list); + kernproc->p_pgrp = &pgrp0; LIST_INSERT_HEAD(PGRPHASH(0), &pgrp0, pg_hash); LIST_INIT(&pgrp0.pg_members); - lck_mtx_init(&pgrp0.pg_mlock, proc_lck_grp, proc_lck_attr); +#ifdef CONFIG_EMBEDDED + lck_mtx_init(&pgrp0.pg_mlock, proc_lck_grp, proc_lck_attr); +#else + lck_mtx_init(&pgrp0.pg_mlock, proc_mlock_grp, proc_lck_attr); +#endif /* There is no other bsd thread this point and is safe without pgrp lock */ - LIST_INSERT_HEAD(&pgrp0.pg_members, p, p_pglist); - p->p_listflag |= P_LIST_INPGRP; - p->p_pgrpid = 0; + LIST_INSERT_HEAD(&pgrp0.pg_members, kernproc, p_pglist); + kernproc->p_listflag |= P_LIST_INPGRP; + kernproc->p_pgrpid = 0; pgrp0.pg_session = &session0; pgrp0.pg_membercnt = 1; session0.s_count = 1; - session0.s_leader = p; + session0.s_leader = kernproc; session0.s_listflags = 0; +#ifdef CONFIG_EMBEDDED lck_mtx_init(&session0.s_mlock, proc_lck_grp, proc_lck_attr); +#else + lck_mtx_init(&session0.s_mlock, proc_mlock_grp, proc_lck_attr); +#endif LIST_INSERT_HEAD(SESSHASH(0), &session0, s_hash); proc_list_unlock(); #if CONFIG_LCTX - p->p_lctx = NULL; + kernproc->p_lctx = NULL; #endif - p->task = kernel_task; + kernproc->task = kernel_task; - p->p_stat = SRUN; - p->p_flag = P_SYSTEM; - p->p_nice = NZERO; - p->p_pptr = p; + kernproc->p_stat = SRUN; + kernproc->p_flag = P_SYSTEM; + kernproc->p_nice = NZERO; + kernproc->p_pptr = kernproc; - TAILQ_INIT(&p->p_uthlist); - TAILQ_INSERT_TAIL(&p->p_uthlist, ut, uu_list); + TAILQ_INIT(&kernproc->p_uthlist); + TAILQ_INSERT_TAIL(&kernproc->p_uthlist, ut, uu_list); - p->sigwait = FALSE; - p->sigwait_thread = THREAD_NULL; - p->exit_thread = THREAD_NULL; - p->p_csflags = CS_VALID; + kernproc->sigwait = FALSE; + kernproc->sigwait_thread = THREAD_NULL; + kernproc->exit_thread = THREAD_NULL; + kernproc->p_csflags = CS_VALID; /* * Create credential. This also Initializes the audit information. - * XXX It is not clear what the initial values should be for audit ID, - * XXX session ID, etc.. */ bsd_init_kprintf("calling bzero\n"); bzero(&temp_cred, sizeof(temp_cred)); temp_cred.cr_ngroups = 1; + temp_cred.cr_audit.as_aia_p = &audit_default_aia; + /* XXX the following will go away with cr_au */ + temp_cred.cr_au.ai_auid = AU_DEFAUDITID; + bsd_init_kprintf("calling kauth_cred_create\n"); - p->p_ucred = kauth_cred_create(&temp_cred); + kernproc->p_ucred = kauth_cred_create(&temp_cred); /* give the (already exisiting) initial thread a reference on it */ bsd_init_kprintf("calling kauth_cred_ref\n"); - kauth_cred_ref(p->p_ucred); - ut->uu_context.vc_ucred = p->p_ucred; + kauth_cred_ref(kernproc->p_ucred); + ut->uu_context.vc_ucred = kernproc->p_ucred; ut->uu_context.vc_thread = current_thread(); - TAILQ_INIT(&p->aio_activeq); - TAILQ_INIT(&p->aio_doneq); - p->aio_active_count = 0; - p->aio_done_count = 0; + TAILQ_INIT(&kernproc->p_aio_activeq); + TAILQ_INIT(&kernproc->p_aio_doneq); + kernproc->p_aio_total_count = 0; + kernproc->p_aio_active_count = 0; bsd_init_kprintf("calling file_lock_init\n"); file_lock_init(); #if CONFIG_MACF - mac_cred_label_associate_kernel(p->p_ucred); - mac_task_label_update_cred (p->p_ucred, (struct task *) p->task); + mac_cred_label_associate_kernel(kernproc->p_ucred); + mac_task_label_update_cred (kernproc->p_ucred, (struct task *) kernproc->task); #endif /* Create the file descriptor table. */ filedesc0.fd_refcnt = 1+1; /* +1 so shutdown will not _FREE_ZONE */ - p->p_fd = &filedesc0; + kernproc->p_fd = &filedesc0; filedesc0.fd_cmask = cmask; filedesc0.fd_knlistsize = -1; filedesc0.fd_knlist = NULL; @@ -510,8 +569,8 @@ bsd_init(void) filedesc0.fd_knhashmask = 0; /* Create the limits structures. */ - p->p_limit = &limit0; - for (i = 0; i < sizeof(p->p_rlimit)/sizeof(p->p_rlimit[0]); i++) + kernproc->p_limit = &limit0; + for (i = 0; i < sizeof(kernproc->p_rlimit)/sizeof(kernproc->p_rlimit[0]); i++) limit0.pl_rlimit[i].rlim_cur = limit0.pl_rlimit[i].rlim_max = RLIM_INFINITY; limit0.pl_rlimit[RLIMIT_NOFILE].rlim_cur = NOFILE; @@ -522,8 +581,8 @@ bsd_init(void) limit0.pl_rlimit[RLIMIT_CORE] = vm_initial_limit_core; limit0.pl_refcnt = 1; - p->p_stats = &pstats0; - p->p_sigacts = &sigacts0; + kernproc->p_stats = &pstats0; + kernproc->p_sigacts = &sigacts0; /* * Charge root for two processes: init and mach_init. @@ -541,7 +600,7 @@ bsd_init(void) bsd_init_kprintf("calling kmem_suballoc\n"); ret = kmem_suballoc(kernel_map, &minimum, - (vm_size_t)BSD_PAGABLE_MAP_SIZE, + (vm_size_t)bsd_pageable_map_size, TRUE, VM_FLAGS_ANYWHERE, &bsd_pageable_map); @@ -561,8 +620,7 @@ bsd_init(void) /* Initialize the execve() semaphore */ bsd_init_kprintf("calling semaphore_create\n"); - ret = semaphore_create(kernel_task, &execve_semaphore, - SYNC_POLICY_FIFO, BSD_SIMUL_EXECS -1); + if (ret != KERN_SUCCESS) panic("bsd_init: Failed to create execve semaphore"); @@ -592,13 +650,14 @@ bsd_init(void) /* Initialize mbuf's. */ bsd_init_kprintf("calling mbinit\n"); mbinit(); + net_str_id_init(); /* for mbuf tags */ #endif /* SOCKETS */ /* * Initializes security event auditing. * XXX: Should/could this occur later? */ -#if AUDIT +#if CONFIG_AUDIT bsd_init_kprintf("calling audit_init\n"); audit_init(); #endif @@ -607,12 +666,6 @@ bsd_init(void) bsd_init_kprintf("calling knote_init\n"); knote_init(); -#if CONFIG_EMBEDDED - /* Initialize kernel memory status notifications */ - bsd_init_kprintf("calling kern_memorystatus_init\n"); - kern_memorystatus_init(); -#endif - /* Initialize for async IO */ bsd_init_kprintf("calling aio_init\n"); aio_init(); @@ -673,8 +726,14 @@ bsd_init(void) domaininit(); #endif /* SOCKETS */ - p->p_fd->fd_cdir = NULL; - p->p_fd->fd_rdir = NULL; + kernproc->p_fd->fd_cdir = NULL; + kernproc->p_fd->fd_rdir = NULL; + +#if CONFIG_EMBEDDED + /* Initialize kernel memory status notifications */ + bsd_init_kprintf("calling kern_memorystatus_init\n"); + kern_memorystatus_init(); +#endif #ifdef GPROF /* Initialize kernel profiling. */ @@ -689,7 +748,6 @@ bsd_init(void) bsd_autoconf(); #if CONFIG_DTRACE - extern void dtrace_postinit(void); dtrace_postinit(); #endif @@ -703,7 +761,12 @@ bsd_init(void) bsd_init_kprintf("calling loopattach\n"); loopattach(); /* XXX */ #endif - + +#if PFLOG + /* Initialize packet filter log interface */ + pfloginit(); +#endif /* PFLOG */ + #if NETHER > 0 /* Register the built-in dlil ethernet interface family */ bsd_init_kprintf("calling ether_family_init\n"); @@ -714,6 +777,9 @@ bsd_init(void) /* Call any kext code that wants to run just after network init */ bsd_init_kprintf("calling net_init_run\n"); net_init_run(); + + /* register user tunnel kernel control handler */ + utun_register_control(); #endif /* NETWORKING */ bsd_init_kprintf("calling vnode_pager_bootstrap\n"); @@ -750,7 +816,7 @@ bsd_init(void) "Pages zero filled:\t\t%u.\n" "Pages reactivated:\t\t%u.\n" "Pageins:\t\t\t%u.\n" - "Pageouts:\t\t\t\%u.\n" + "Pageouts:\t\t\t%u.\n" "Object cache: %u hits of %u lookups (%d%% hit rate)\n", stat.free_count, @@ -783,9 +849,15 @@ bsd_init(void) rootdevice[0] = '\0'; #if NFSCLIENT if (mountroot == netboot_mountroot) { - printf("bsd_init: netboot_mountroot failed," - " errno = %d\n", err); - panic("bsd_init: failed to mount network root: %s", PE_boot_args()); + PE_display_icon( 0, "noroot"); /* XXX a netboot-specific icon would be nicer */ + vc_progress_set(FALSE, 0); + for (i=1; 1; i*=2) { + printf("bsd_init: failed to mount network root, error %d, %s\n", + err, PE_boot_args()); + printf("We are hanging here...\n"); + IOSleep(i*60*1000); + } + /*NOTREACHED*/ } #endif printf("cannot mount root, errno = %d\n", err); @@ -795,7 +867,7 @@ bsd_init(void) IOSecureBSDRoot(rootdevice); context.vc_thread = current_thread(); - context.vc_ucred = p->p_ucred; + context.vc_ucred = kernproc->p_ucred; mountlist.tqh_first->mnt_flag |= MNT_ROOTFS; bsd_init_kprintf("calling VFS_ROOT\n"); @@ -812,7 +884,15 @@ bsd_init(void) int err; /* post mount setup */ if ((err = netboot_setup()) != 0) { - panic("bsd_init: NetBoot could not find root, %d: %s", err, PE_boot_args()); + PE_display_icon( 0, "noroot"); /* XXX a netboot-specific icon would be nicer */ + vc_progress_set(FALSE, 0); + for (i=1; 1; i*=2) { + printf("bsd_init: NetBoot could not find root, error %d: %s\n", + err, PE_boot_args()); + printf("We are hanging here...\n"); + IOSleep(i*60*1000); + } + /*NOTREACHED*/ } } #endif @@ -839,9 +919,9 @@ bsd_init(void) } #endif /* CONFIG_IMAGEBOOT */ - microtime(&p->p_stats->p_start); /* for compat sake */ - microtime(&p->p_start); - p->p_rtime.tv_sec = p->p_rtime.tv_usec = 0; + /* set initial time; all other resource data is already zero'ed */ + microtime(&kernproc->p_start); + kernproc->p_stats->p_start = kernproc->p_start; /* for compat */ #if DEVFS { @@ -854,14 +934,24 @@ bsd_init(void) /* Initialize signal state for process 0. */ bsd_init_kprintf("calling siginit\n"); - siginit(p); + siginit(kernproc); bsd_init_kprintf("calling bsd_utaskbootstrap\n"); bsd_utaskbootstrap(); -#if __i386__ +#if defined(__LP64__) + kernproc->p_flag |= P_LP64; + printf("Kernel is LP64\n"); +#endif +#if __i386__ || __x86_64__ /* this should be done after the root filesystem is mounted */ - error = set_archhandler(p, CPU_TYPE_POWERPC); + error = set_archhandler(kernproc, CPU_TYPE_POWERPC); + // 10/30/08 - gab: + // if default 'translate' can't be found, see if the understudy is available + if (ENOENT == error) { + strlcpy(exec_archhandler_ppc.path, kRosettaStandIn_str, MAXPATHLEN); + error = set_archhandler(kernproc, CPU_TYPE_POWERPC); + } if (error) /* XXX make more generic */ exec_archhandler_ppc.path[0] = 0; #endif @@ -873,10 +963,9 @@ bsd_init(void) mountroot_post_hook(); #if 0 /* not yet */ - IOKitJettisonKLD(); - consider_zone_gc(); + consider_zone_gc(FALSE); #endif - + bsd_init_kprintf("done\n"); } @@ -894,11 +983,8 @@ bsdinit_task(void) thread = current_thread(); (void) host_set_exception_ports(host_priv_self(), - EXC_MASK_ALL & ~(EXC_MASK_SYSCALL | - EXC_MASK_MACH_SYSCALL | - EXC_MASK_RPC_ALERT | - EXC_MASK_CRASH), - (mach_port_t)ux_exception_port, + EXC_MASK_ALL & ~(EXC_MASK_RPC_ALERT),//pilotfish (shark) needs this port + (mach_port_t) ux_exception_port, EXCEPTION_DEFAULT| MACH_EXCEPTION_CODES, 0); @@ -991,17 +1077,24 @@ bsd_utaskbootstrap(void) thread_t thread; struct uthread *ut; - thread = cloneproc(kernproc, 0); + /* + * Clone the bootstrap process from the kernel process, without + * inheriting either task characteristics or memory from the kernel; + */ + thread = cloneproc(TASK_NULL, kernproc, FALSE); + /* Hold the reference as it will be dropped during shutdown */ initproc = proc_find(1); #if __PROC_INTERNAL_DEBUG if (initproc == PROC_NULL) panic("bsd_utaskbootstrap: initproc not set\n"); #endif - /* Set the launch time for init */ - microtime(&initproc->p_start); - microtime(&initproc->p_stats->p_start); /* for compat sake */ - + /* + * Since we aren't going back out the normal way to our parent, + * we have to drop the transition locks explicitly. + */ + proc_signalend(initproc, 0); + proc_transend(initproc, 0); ut = (struct uthread *)get_bsdthread_info(thread); ut->uu_sigmask = 0; @@ -1027,9 +1120,13 @@ parse_bsd_args(void) if (PE_parse_boot_argn("-l", namep, sizeof (namep))) /* leaks logging */ turn_on_log_leaks = 1; - PE_parse_boot_argn("srv", &srv, sizeof (srv)); + /* disable 64 bit grading */ + if (PE_parse_boot_argn("-no64exec", namep, sizeof (namep))) + bootarg_no64exec = 1; + PE_parse_boot_argn("ncl", &ncl, sizeof (ncl)); - if (PE_parse_boot_argn("nbuf", &max_nbuf_headers, sizeof (max_nbuf_headers))) { + if (PE_parse_boot_argn("nbuf", &max_nbuf_headers, + sizeof (max_nbuf_headers))) { customnbuf = 1; } #if !defined(SECURE_KERNEL) @@ -1042,6 +1139,35 @@ parse_bsd_args(void) } } +void +bsd_exec_setup(int scale) +{ + + switch (scale) { + case 0: + case 1: + bsd_simul_execs = BSD_SIMUL_EXECS; + break; + case 2: + case 3: + bsd_simul_execs = 65; + break; + case 4: + case 5: + bsd_simul_execs = 129; + break; + case 6: + case 7: + bsd_simul_execs = 257; + break; + default: + bsd_simul_execs = 513; + break; + + } + bsd_pageable_map_size = (bsd_simul_execs * (NCARGS + PAGE_SIZE)); +} + #if !NFSCLIENT int netboot_root(void)