2 * Copyright (c) 2002 Doug Rabson
3 * Copyright (c) 1994-1995 Søren Schmidt
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer
11 * in this position and unchanged.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
33 #include "opt_compat.h"
35 #include <sys/param.h>
36 #include <sys/blist.h>
37 #include <sys/fcntl.h>
39 #include <sys/imgact_aout.h>
42 #include <sys/kernel.h>
43 #include <sys/limits.h>
45 #include <sys/malloc.h>
47 #include <sys/mount.h>
48 #include <sys/mutex.h>
49 #include <sys/namei.h>
52 #include <sys/reboot.h>
53 #include <sys/racct.h>
54 #include <sys/resourcevar.h>
55 #include <sys/sched.h>
57 #include <sys/signalvar.h>
59 #include <sys/syscallsubr.h>
60 #include <sys/sysctl.h>
61 #include <sys/sysproto.h>
62 #include <sys/systm.h>
64 #include <sys/vmmeter.h>
65 #include <sys/vnode.h>
67 #include <sys/cpuset.h>
69 #include <security/mac/mac_framework.h>
73 #include <vm/vm_kern.h>
74 #include <vm/vm_map.h>
75 #include <vm/vm_extern.h>
76 #include <vm/vm_object.h>
77 #include <vm/swap_pager.h>
80 #include <machine/../linux32/linux.h>
81 #include <machine/../linux32/linux32_proto.h>
83 #include <machine/../linux/linux.h>
84 #include <machine/../linux/linux_proto.h>
87 #include <compat/linux/linux_dtrace.h>
88 #include <compat/linux/linux_file.h>
89 #include <compat/linux/linux_mib.h>
90 #include <compat/linux/linux_signal.h>
91 #include <compat/linux/linux_timer.h>
92 #include <compat/linux/linux_util.h>
93 #include <compat/linux/linux_sysproto.h>
94 #include <compat/linux/linux_emul.h>
95 #include <compat/linux/linux_misc.h>
98 * Special DTrace provider for the linuxulator.
100 * In this file we define the provider for the entire linuxulator. All
101 * modules (= files of the linuxulator) use it.
103 * We define a different name depending on the emulated bitsize, see
104 * ../../<ARCH>/linux{,32}/linux.h, e.g.:
105 * native bitsize = linuxulator
106 * amd64, 32bit emulation = linuxulator32
108 LIN_SDT_PROVIDER_DEFINE(LINUX_DTRACE);
110 int stclohz; /* Statistics clock frequency */
112 static unsigned int linux_to_bsd_resource[LINUX_RLIM_NLIMITS] = {
113 RLIMIT_CPU, RLIMIT_FSIZE, RLIMIT_DATA, RLIMIT_STACK,
114 RLIMIT_CORE, RLIMIT_RSS, RLIMIT_NPROC, RLIMIT_NOFILE,
115 RLIMIT_MEMLOCK, RLIMIT_AS
119 l_long uptime; /* Seconds since boot */
120 l_ulong loads[3]; /* 1, 5, and 15 minute load averages */
121 #define LINUX_SYSINFO_LOADS_SCALE 65536
122 l_ulong totalram; /* Total usable main memory size */
123 l_ulong freeram; /* Available memory size */
124 l_ulong sharedram; /* Amount of shared memory */
125 l_ulong bufferram; /* Memory used by buffers */
126 l_ulong totalswap; /* Total swap space size */
127 l_ulong freeswap; /* swap space still available */
128 l_ushort procs; /* Number of current processes */
133 char _f[20-2*sizeof(l_long)-sizeof(l_int)]; /* padding */
136 struct l_pselect6arg {
142 linux_sysinfo(struct thread *td, struct linux_sysinfo_args *args)
144 struct l_sysinfo sysinfo;
152 sysinfo.uptime = ts.tv_sec;
154 /* Use the information from the mib to get our load averages */
155 for (i = 0; i < 3; i++)
156 sysinfo.loads[i] = averunnable.ldavg[i] *
157 LINUX_SYSINFO_LOADS_SCALE / averunnable.fscale;
159 sysinfo.totalram = physmem * PAGE_SIZE;
160 sysinfo.freeram = sysinfo.totalram - vm_cnt.v_wire_count * PAGE_SIZE;
162 sysinfo.sharedram = 0;
163 mtx_lock(&vm_object_list_mtx);
164 TAILQ_FOREACH(object, &vm_object_list, object_list)
165 if (object->shadow_count > 1)
166 sysinfo.sharedram += object->resident_page_count;
167 mtx_unlock(&vm_object_list_mtx);
169 sysinfo.sharedram *= PAGE_SIZE;
170 sysinfo.bufferram = 0;
172 swap_pager_status(&i, &j);
173 sysinfo.totalswap = i * PAGE_SIZE;
174 sysinfo.freeswap = (i - j) * PAGE_SIZE;
176 sysinfo.procs = nprocs;
178 /* The following are only present in newer Linux kernels. */
179 sysinfo.totalbig = 0;
181 sysinfo.mem_unit = 1;
183 return (copyout(&sysinfo, args->info, sizeof(sysinfo)));
187 linux_alarm(struct thread *td, struct linux_alarm_args *args)
189 struct itimerval it, old_it;
195 printf(ARGS(alarm, "%u"), args->secs);
203 it.it_value.tv_sec = (long) secs;
204 it.it_value.tv_usec = 0;
205 it.it_interval.tv_sec = 0;
206 it.it_interval.tv_usec = 0;
207 error = kern_setitimer(td, ITIMER_REAL, &it, &old_it);
210 if (timevalisset(&old_it.it_value)) {
211 if (old_it.it_value.tv_usec != 0)
212 old_it.it_value.tv_sec++;
213 td->td_retval[0] = old_it.it_value.tv_sec;
219 linux_brk(struct thread *td, struct linux_brk_args *args)
221 struct vmspace *vm = td->td_proc->p_vmspace;
222 vm_offset_t new, old;
223 struct obreak_args /* {
229 printf(ARGS(brk, "%p"), (void *)(uintptr_t)args->dsend);
231 old = (vm_offset_t)vm->vm_daddr + ctob(vm->vm_dsize);
232 new = (vm_offset_t)args->dsend;
233 tmp.nsize = (char *)new;
234 if (((caddr_t)new > vm->vm_daddr) && !sys_obreak(td, &tmp))
235 td->td_retval[0] = (long)new;
237 td->td_retval[0] = (long)old;
242 #if defined(__i386__)
243 /* XXX: what about amd64/linux32? */
246 linux_uselib(struct thread *td, struct linux_uselib_args *args)
253 unsigned long file_offset;
254 unsigned long bss_size;
257 int error, locked, writecount;
259 LCONVPATHEXIST(td, args->library, &library);
263 printf(ARGS(uselib, "%s"), library);
270 NDINIT(&ni, LOOKUP, ISOPEN | FOLLOW | LOCKLEAF | AUDITVNODE1,
271 UIO_SYSSPACE, library, td);
278 NDFREE(&ni, NDF_ONLY_PNBUF);
281 * From here on down, we have a locked vnode that must be unlocked.
282 * XXX: The code below largely duplicates exec_check_permissions().
287 error = VOP_GET_WRITECOUNT(vp, &writecount);
290 if (writecount != 0) {
296 error = VOP_GETATTR(vp, &attr, td->td_ucred);
300 if ((vp->v_mount->mnt_flag & MNT_NOEXEC) ||
301 ((attr.va_mode & 0111) == 0) || (attr.va_type != VREG)) {
302 /* EACCESS is what exec(2) returns. */
308 if (attr.va_size == 0) {
313 /* Can we access it? */
314 error = VOP_ACCESS(vp, VEXEC, td->td_ucred, td);
319 * XXX: This should use vn_open() so that it is properly authorized,
320 * and to reduce code redundancy all over the place here.
321 * XXX: Not really, it duplicates far more of exec_check_permissions()
325 error = mac_vnode_check_open(td->td_ucred, vp, VREAD);
329 error = VOP_OPEN(vp, FREAD, td->td_ucred, td, NULL);
333 /* Pull in executable header into exec_map */
334 error = vm_mmap(exec_map, (vm_offset_t *)&a_out, PAGE_SIZE,
335 VM_PROT_READ, VM_PROT_READ, 0, OBJT_VNODE, vp, 0);
339 /* Is it a Linux binary ? */
340 if (((a_out->a_magic >> 16) & 0xff) != 0x64) {
346 * While we are here, we should REALLY do some more checks
349 /* Set file/virtual offset based on a.out variant. */
350 switch ((int)(a_out->a_magic & 0xffff)) {
351 case 0413: /* ZMAGIC */
354 case 0314: /* QMAGIC */
362 bss_size = round_page(a_out->a_bss);
364 /* Check various fields in header for validity/bounds. */
365 if (a_out->a_text & PAGE_MASK || a_out->a_data & PAGE_MASK) {
370 /* text + data can't exceed file size */
371 if (a_out->a_data + a_out->a_text > attr.va_size) {
377 * text/data/bss must not exceed limits
378 * XXX - this is not complete. it should check current usage PLUS
379 * the resources needed by this library.
381 PROC_LOCK(td->td_proc);
382 if (a_out->a_text > maxtsiz ||
383 a_out->a_data + bss_size > lim_cur(td->td_proc, RLIMIT_DATA) ||
384 racct_set(td->td_proc, RACCT_DATA, a_out->a_data +
386 PROC_UNLOCK(td->td_proc);
390 PROC_UNLOCK(td->td_proc);
393 * Prevent more writers.
394 * XXX: Note that if any of the VM operations fail below we don't
400 * Lock no longer needed
406 * Check if file_offset page aligned. Currently we cannot handle
407 * misalinged file offsets, and so we read in the entire image
410 if (file_offset & PAGE_MASK) {
412 printf("uselib: Non page aligned binary %lu\n", file_offset);
414 /* Map text+data read/write/execute */
416 /* a_entry is the load address and is page aligned */
417 vmaddr = trunc_page(a_out->a_entry);
419 /* get anon user mapping, read+write+execute */
420 error = vm_map_find(&td->td_proc->p_vmspace->vm_map, NULL, 0,
421 &vmaddr, a_out->a_text + a_out->a_data, 0, VMFS_NO_SPACE,
422 VM_PROT_ALL, VM_PROT_ALL, 0);
426 error = vn_rdwr(UIO_READ, vp, (void *)vmaddr, file_offset,
427 a_out->a_text + a_out->a_data, UIO_USERSPACE, 0,
428 td->td_ucred, NOCRED, &aresid, td);
437 printf("uselib: Page aligned binary %lu\n", file_offset);
440 * for QMAGIC, a_entry is 20 bytes beyond the load address
441 * to skip the executable header
443 vmaddr = trunc_page(a_out->a_entry);
446 * Map it all into the process's space as a single
447 * copy-on-write "data" segment.
449 error = vm_mmap(&td->td_proc->p_vmspace->vm_map, &vmaddr,
450 a_out->a_text + a_out->a_data, VM_PROT_ALL, VM_PROT_ALL,
451 MAP_PRIVATE | MAP_FIXED, OBJT_VNODE, vp, file_offset);
456 printf("mem=%08lx = %08lx %08lx\n", (long)vmaddr, ((long *)vmaddr)[0],
457 ((long *)vmaddr)[1]);
460 /* Calculate BSS start address */
461 vmaddr = trunc_page(a_out->a_entry) + a_out->a_text +
464 /* allocate some 'anon' space */
465 error = vm_map_find(&td->td_proc->p_vmspace->vm_map, NULL, 0,
466 &vmaddr, bss_size, 0, VMFS_NO_SPACE, VM_PROT_ALL,
473 /* Unlock vnode if needed */
477 /* Release the temporary mapping. */
479 kmap_free_wakeup(exec_map, (vm_offset_t)a_out, PAGE_SIZE);
484 #endif /* __i386__ */
487 linux_select(struct thread *td, struct linux_select_args *args)
490 struct timeval tv0, tv1, utv, *tvp;
495 printf(ARGS(select, "%d, %p, %p, %p, %p"), args->nfds,
496 (void *)args->readfds, (void *)args->writefds,
497 (void *)args->exceptfds, (void *)args->timeout);
501 * Store current time for computation of the amount of
505 if ((error = copyin(args->timeout, <v, sizeof(ltv))))
507 utv.tv_sec = ltv.tv_sec;
508 utv.tv_usec = ltv.tv_usec;
511 printf(LMSG("incoming timeout (%jd/%ld)"),
512 (intmax_t)utv.tv_sec, utv.tv_usec);
515 if (itimerfix(&utv)) {
517 * The timeval was invalid. Convert it to something
518 * valid that will act as it does under Linux.
520 utv.tv_sec += utv.tv_usec / 1000000;
521 utv.tv_usec %= 1000000;
522 if (utv.tv_usec < 0) {
524 utv.tv_usec += 1000000;
534 error = kern_select(td, args->nfds, args->readfds, args->writefds,
535 args->exceptfds, tvp, LINUX_NFDBITS);
539 printf(LMSG("real select returns %d"), error);
545 if (td->td_retval[0]) {
547 * Compute how much time was left of the timeout,
548 * by subtracting the current time and the time
549 * before we started the call, and subtracting
550 * that result from the user-supplied value.
553 timevalsub(&tv1, &tv0);
554 timevalsub(&utv, &tv1);
561 printf(LMSG("outgoing timeout (%jd/%ld)"),
562 (intmax_t)utv.tv_sec, utv.tv_usec);
564 ltv.tv_sec = utv.tv_sec;
565 ltv.tv_usec = utv.tv_usec;
566 if ((error = copyout(<v, args->timeout, sizeof(ltv))))
573 printf(LMSG("select_out -> %d"), error);
579 linux_mremap(struct thread *td, struct linux_mremap_args *args)
581 struct munmap_args /* {
589 printf(ARGS(mremap, "%p, %08lx, %08lx, %08lx"),
590 (void *)(uintptr_t)args->addr,
591 (unsigned long)args->old_len,
592 (unsigned long)args->new_len,
593 (unsigned long)args->flags);
596 if (args->flags & ~(LINUX_MREMAP_FIXED | LINUX_MREMAP_MAYMOVE)) {
597 td->td_retval[0] = 0;
602 * Check for the page alignment.
603 * Linux defines PAGE_MASK to be FreeBSD ~PAGE_MASK.
605 if (args->addr & PAGE_MASK) {
606 td->td_retval[0] = 0;
610 args->new_len = round_page(args->new_len);
611 args->old_len = round_page(args->old_len);
613 if (args->new_len > args->old_len) {
614 td->td_retval[0] = 0;
618 if (args->new_len < args->old_len) {
620 (caddr_t)((uintptr_t)args->addr + args->new_len);
621 bsd_args.len = args->old_len - args->new_len;
622 error = sys_munmap(td, &bsd_args);
625 td->td_retval[0] = error ? 0 : (uintptr_t)args->addr;
629 #define LINUX_MS_ASYNC 0x0001
630 #define LINUX_MS_INVALIDATE 0x0002
631 #define LINUX_MS_SYNC 0x0004
634 linux_msync(struct thread *td, struct linux_msync_args *args)
636 struct msync_args bsd_args;
638 bsd_args.addr = (caddr_t)(uintptr_t)args->addr;
639 bsd_args.len = (uintptr_t)args->len;
640 bsd_args.flags = args->fl & ~LINUX_MS_SYNC;
642 return (sys_msync(td, &bsd_args));
646 linux_time(struct thread *td, struct linux_time_args *args)
654 printf(ARGS(time, "*"));
659 if (args->tm && (error = copyout(&tm, args->tm, sizeof(tm))))
661 td->td_retval[0] = tm;
665 struct l_times_argv {
668 l_clock_t tms_cutime;
669 l_clock_t tms_cstime;
674 * Glibc versions prior to 2.2.1 always use hard-coded CLK_TCK value.
675 * Since 2.2.1 Glibc uses value exported from kernel via AT_CLKTCK
676 * auxiliary vector entry.
680 #define CONVOTCK(r) (r.tv_sec * CLK_TCK + r.tv_usec / (1000000 / CLK_TCK))
681 #define CONVNTCK(r) (r.tv_sec * stclohz + r.tv_usec / (1000000 / stclohz))
683 #define CONVTCK(r) (linux_kernver(td) >= LINUX_KERNVER_2004000 ? \
684 CONVNTCK(r) : CONVOTCK(r))
687 linux_times(struct thread *td, struct linux_times_args *args)
689 struct timeval tv, utime, stime, cutime, cstime;
690 struct l_times_argv tms;
696 printf(ARGS(times, "*"));
699 if (args->buf != NULL) {
703 calcru(p, &utime, &stime);
705 calccru(p, &cutime, &cstime);
708 tms.tms_utime = CONVTCK(utime);
709 tms.tms_stime = CONVTCK(stime);
711 tms.tms_cutime = CONVTCK(cutime);
712 tms.tms_cstime = CONVTCK(cstime);
714 if ((error = copyout(&tms, args->buf, sizeof(tms))))
719 td->td_retval[0] = (int)CONVTCK(tv);
724 linux_newuname(struct thread *td, struct linux_newuname_args *args)
726 struct l_new_utsname utsname;
727 char osname[LINUX_MAX_UTSNAME];
728 char osrelease[LINUX_MAX_UTSNAME];
732 if (ldebug(newuname))
733 printf(ARGS(newuname, "*"));
736 linux_get_osname(td, osname);
737 linux_get_osrelease(td, osrelease);
739 bzero(&utsname, sizeof(utsname));
740 strlcpy(utsname.sysname, osname, LINUX_MAX_UTSNAME);
741 getcredhostname(td->td_ucred, utsname.nodename, LINUX_MAX_UTSNAME);
742 getcreddomainname(td->td_ucred, utsname.domainname, LINUX_MAX_UTSNAME);
743 strlcpy(utsname.release, osrelease, LINUX_MAX_UTSNAME);
744 strlcpy(utsname.version, version, LINUX_MAX_UTSNAME);
745 for (p = utsname.version; *p != '\0'; ++p)
750 strlcpy(utsname.machine, linux_kplatform, LINUX_MAX_UTSNAME);
752 return (copyout(&utsname, args->buf, sizeof(utsname)));
761 linux_utime(struct thread *td, struct linux_utime_args *args)
763 struct timeval tv[2], *tvp;
764 struct l_utimbuf lut;
768 LCONVPATHEXIST(td, args->fname, &fname);
772 printf(ARGS(utime, "%s, *"), fname);
776 if ((error = copyin(args->times, &lut, sizeof lut))) {
780 tv[0].tv_sec = lut.l_actime;
782 tv[1].tv_sec = lut.l_modtime;
788 error = kern_utimesat(td, AT_FDCWD, fname, UIO_SYSSPACE, tvp,
795 linux_utimes(struct thread *td, struct linux_utimes_args *args)
798 struct timeval tv[2], *tvp = NULL;
802 LCONVPATHEXIST(td, args->fname, &fname);
806 printf(ARGS(utimes, "%s, *"), fname);
809 if (args->tptr != NULL) {
810 if ((error = copyin(args->tptr, ltv, sizeof ltv))) {
814 tv[0].tv_sec = ltv[0].tv_sec;
815 tv[0].tv_usec = ltv[0].tv_usec;
816 tv[1].tv_sec = ltv[1].tv_sec;
817 tv[1].tv_usec = ltv[1].tv_usec;
821 error = kern_utimesat(td, AT_FDCWD, fname, UIO_SYSSPACE,
828 linux_futimesat(struct thread *td, struct linux_futimesat_args *args)
831 struct timeval tv[2], *tvp = NULL;
835 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
836 LCONVPATHEXIST_AT(td, args->filename, &fname, dfd);
839 if (ldebug(futimesat))
840 printf(ARGS(futimesat, "%s, *"), fname);
843 if (args->utimes != NULL) {
844 if ((error = copyin(args->utimes, ltv, sizeof ltv))) {
848 tv[0].tv_sec = ltv[0].tv_sec;
849 tv[0].tv_usec = ltv[0].tv_usec;
850 tv[1].tv_sec = ltv[1].tv_sec;
851 tv[1].tv_usec = ltv[1].tv_usec;
855 error = kern_utimesat(td, dfd, fname, UIO_SYSSPACE, tvp, UIO_SYSSPACE);
861 linux_common_wait(struct thread *td, int pid, int *status,
862 int options, struct rusage *ru)
866 error = kern_wait(td, pid, &tmpstat, options, ru);
872 if (WIFSIGNALED(tmpstat))
873 tmpstat = (tmpstat & 0xffffff80) |
874 bsd_to_linux_signal(WTERMSIG(tmpstat));
875 else if (WIFSTOPPED(tmpstat))
876 tmpstat = (tmpstat & 0xffff00ff) |
877 (bsd_to_linux_signal(WSTOPSIG(tmpstat)) << 8);
878 else if (WIFCONTINUED(tmpstat))
880 error = copyout(&tmpstat, status, sizeof(int));
886 #if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32))
888 linux_waitpid(struct thread *td, struct linux_waitpid_args *args)
890 struct linux_wait4_args wait4_args;
894 printf(ARGS(waitpid, "%d, %p, %d"),
895 args->pid, (void *)args->status, args->options);
898 wait4_args.pid = args->pid;
899 wait4_args.status = args->status;
900 wait4_args.options = args->options;
901 wait4_args.rusage = NULL;
903 return (linux_wait4(td, &wait4_args));
905 #endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */
908 linux_wait4(struct thread *td, struct linux_wait4_args *args)
911 struct rusage ru, *rup;
915 printf(ARGS(wait4, "%d, %p, %d, %p"),
916 args->pid, (void *)args->status, args->options,
917 (void *)args->rusage);
919 if (args->options & ~(LINUX_WUNTRACED | LINUX_WNOHANG |
920 LINUX_WCONTINUED | __WCLONE | __WNOTHREAD | __WALL))
924 linux_to_bsd_waitopts(args->options, &options);
926 if (args->rusage != NULL)
930 error = linux_common_wait(td, args->pid, args->status, options, rup);
933 if (args->rusage != NULL)
934 error = linux_copyout_rusage(&ru, args->rusage);
939 linux_waitid(struct thread *td, struct linux_waitid_args *args)
941 int status, options, sig;
942 struct __wrusage wru;
950 linux_to_bsd_waitopts(args->options, &options);
952 if (options & ~(WNOHANG | WNOWAIT | WEXITED | WUNTRACED | WCONTINUED))
954 if (!(options & (WEXITED | WUNTRACED | WCONTINUED)))
957 switch (args->idtype) {
975 error = kern_wait6(td, idtype, args->id, &status, options,
979 if (args->rusage != NULL) {
980 error = linux_copyout_rusage(&wru.wru_children,
985 if (args->info != NULL) {
987 if (td->td_retval[0] == 0)
988 bzero(&lsi, sizeof(lsi));
990 sig = bsd_to_linux_signal(siginfo.si_signo);
991 siginfo_to_lsiginfo(&siginfo, &lsi, sig);
993 error = copyout(&lsi, args->info, sizeof(lsi));
995 td->td_retval[0] = 0;
1001 linux_mknod(struct thread *td, struct linux_mknod_args *args)
1006 LCONVPATHCREAT(td, args->path, &path);
1010 printf(ARGS(mknod, "%s, %d, %ju"), path, args->mode,
1011 (uintmax_t)args->dev);
1014 switch (args->mode & S_IFMT) {
1017 error = kern_mkfifoat(td, AT_FDCWD, path, UIO_SYSSPACE,
1023 error = kern_mknodat(td, AT_FDCWD, path, UIO_SYSSPACE,
1024 args->mode, args->dev);
1032 args->mode |= S_IFREG;
1035 error = kern_openat(td, AT_FDCWD, path, UIO_SYSSPACE,
1036 O_WRONLY | O_CREAT | O_TRUNC, args->mode);
1038 kern_close(td, td->td_retval[0]);
1050 linux_mknodat(struct thread *td, struct linux_mknodat_args *args)
1055 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;
1056 LCONVPATHCREAT_AT(td, args->filename, &path, dfd);
1059 if (ldebug(mknodat))
1060 printf(ARGS(mknodat, "%s, %d, %d"), path, args->mode, args->dev);
1063 switch (args->mode & S_IFMT) {
1066 error = kern_mkfifoat(td, dfd, path, UIO_SYSSPACE, args->mode);
1071 error = kern_mknodat(td, dfd, path, UIO_SYSSPACE, args->mode,
1080 args->mode |= S_IFREG;
1083 error = kern_openat(td, dfd, path, UIO_SYSSPACE,
1084 O_WRONLY | O_CREAT | O_TRUNC, args->mode);
1086 kern_close(td, td->td_retval[0]);
1098 * UGH! This is just about the dumbest idea I've ever heard!!
1101 linux_personality(struct thread *td, struct linux_personality_args *args)
1104 if (ldebug(personality))
1105 printf(ARGS(personality, "%lu"), (unsigned long)args->per);
1110 /* Yes Jim, it's still a Linux... */
1111 td->td_retval[0] = 0;
1115 struct l_itimerval {
1116 l_timeval it_interval;
1120 #define B2L_ITIMERVAL(bip, lip) \
1121 (bip)->it_interval.tv_sec = (lip)->it_interval.tv_sec; \
1122 (bip)->it_interval.tv_usec = (lip)->it_interval.tv_usec; \
1123 (bip)->it_value.tv_sec = (lip)->it_value.tv_sec; \
1124 (bip)->it_value.tv_usec = (lip)->it_value.tv_usec;
1127 linux_setitimer(struct thread *td, struct linux_setitimer_args *uap)
1130 struct l_itimerval ls;
1131 struct itimerval aitv, oitv;
1134 if (ldebug(setitimer))
1135 printf(ARGS(setitimer, "%p, %p"),
1136 (void *)uap->itv, (void *)uap->oitv);
1139 if (uap->itv == NULL) {
1140 uap->itv = uap->oitv;
1141 return (linux_getitimer(td, (struct linux_getitimer_args *)uap));
1144 error = copyin(uap->itv, &ls, sizeof(ls));
1147 B2L_ITIMERVAL(&aitv, &ls);
1149 if (ldebug(setitimer)) {
1150 printf("setitimer: value: sec: %jd, usec: %ld\n",
1151 (intmax_t)aitv.it_value.tv_sec, aitv.it_value.tv_usec);
1152 printf("setitimer: interval: sec: %jd, usec: %ld\n",
1153 (intmax_t)aitv.it_interval.tv_sec, aitv.it_interval.tv_usec);
1156 error = kern_setitimer(td, uap->which, &aitv, &oitv);
1157 if (error != 0 || uap->oitv == NULL)
1159 B2L_ITIMERVAL(&ls, &oitv);
1161 return (copyout(&ls, uap->oitv, sizeof(ls)));
1165 linux_getitimer(struct thread *td, struct linux_getitimer_args *uap)
1168 struct l_itimerval ls;
1169 struct itimerval aitv;
1172 if (ldebug(getitimer))
1173 printf(ARGS(getitimer, "%p"), (void *)uap->itv);
1175 error = kern_getitimer(td, uap->which, &aitv);
1178 B2L_ITIMERVAL(&ls, &aitv);
1179 return (copyout(&ls, uap->itv, sizeof(ls)));
1182 #if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32))
1184 linux_nice(struct thread *td, struct linux_nice_args *args)
1186 struct setpriority_args bsd_args;
1188 bsd_args.which = PRIO_PROCESS;
1189 bsd_args.who = 0; /* current process */
1190 bsd_args.prio = args->inc;
1191 return (sys_setpriority(td, &bsd_args));
1193 #endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */
1196 linux_setgroups(struct thread *td, struct linux_setgroups_args *args)
1198 struct ucred *newcred, *oldcred;
1199 l_gid_t *linux_gidset;
1204 ngrp = args->gidsetsize;
1205 if (ngrp < 0 || ngrp >= ngroups_max + 1)
1207 linux_gidset = malloc(ngrp * sizeof(*linux_gidset), M_LINUX, M_WAITOK);
1208 error = copyin(args->grouplist, linux_gidset, ngrp * sizeof(l_gid_t));
1214 oldcred = crcopysafe(p, newcred);
1217 * cr_groups[0] holds egid. Setting the whole set from
1218 * the supplied set will cause egid to be changed too.
1219 * Keep cr_groups[0] unchanged to prevent that.
1222 if ((error = priv_check_cred(oldcred, PRIV_CRED_SETGROUPS, 0)) != 0) {
1229 newcred->cr_ngroups = ngrp + 1;
1231 bsd_gidset = newcred->cr_groups;
1234 bsd_gidset[ngrp + 1] = linux_gidset[ngrp];
1238 newcred->cr_ngroups = 1;
1241 proc_set_cred(p, newcred);
1246 free(linux_gidset, M_LINUX);
1251 linux_getgroups(struct thread *td, struct linux_getgroups_args *args)
1254 l_gid_t *linux_gidset;
1256 int bsd_gidsetsz, ngrp, error;
1258 cred = td->td_ucred;
1259 bsd_gidset = cred->cr_groups;
1260 bsd_gidsetsz = cred->cr_ngroups - 1;
1263 * cr_groups[0] holds egid. Returning the whole set
1264 * here will cause a duplicate. Exclude cr_groups[0]
1268 if ((ngrp = args->gidsetsize) == 0) {
1269 td->td_retval[0] = bsd_gidsetsz;
1273 if (ngrp < bsd_gidsetsz)
1277 linux_gidset = malloc(bsd_gidsetsz * sizeof(*linux_gidset),
1279 while (ngrp < bsd_gidsetsz) {
1280 linux_gidset[ngrp] = bsd_gidset[ngrp + 1];
1284 error = copyout(linux_gidset, args->grouplist, ngrp * sizeof(l_gid_t));
1285 free(linux_gidset, M_LINUX);
1289 td->td_retval[0] = ngrp;
1294 linux_setrlimit(struct thread *td, struct linux_setrlimit_args *args)
1296 struct rlimit bsd_rlim;
1297 struct l_rlimit rlim;
1302 if (ldebug(setrlimit))
1303 printf(ARGS(setrlimit, "%d, %p"),
1304 args->resource, (void *)args->rlim);
1307 if (args->resource >= LINUX_RLIM_NLIMITS)
1310 which = linux_to_bsd_resource[args->resource];
1314 error = copyin(args->rlim, &rlim, sizeof(rlim));
1318 bsd_rlim.rlim_cur = (rlim_t)rlim.rlim_cur;
1319 bsd_rlim.rlim_max = (rlim_t)rlim.rlim_max;
1320 return (kern_setrlimit(td, which, &bsd_rlim));
1323 #if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32))
1325 linux_old_getrlimit(struct thread *td, struct linux_old_getrlimit_args *args)
1327 struct l_rlimit rlim;
1328 struct proc *p = td->td_proc;
1329 struct rlimit bsd_rlim;
1333 if (ldebug(old_getrlimit))
1334 printf(ARGS(old_getrlimit, "%d, %p"),
1335 args->resource, (void *)args->rlim);
1338 if (args->resource >= LINUX_RLIM_NLIMITS)
1341 which = linux_to_bsd_resource[args->resource];
1346 lim_rlimit(p, which, &bsd_rlim);
1349 #ifdef COMPAT_LINUX32
1350 rlim.rlim_cur = (unsigned int)bsd_rlim.rlim_cur;
1351 if (rlim.rlim_cur == UINT_MAX)
1352 rlim.rlim_cur = INT_MAX;
1353 rlim.rlim_max = (unsigned int)bsd_rlim.rlim_max;
1354 if (rlim.rlim_max == UINT_MAX)
1355 rlim.rlim_max = INT_MAX;
1357 rlim.rlim_cur = (unsigned long)bsd_rlim.rlim_cur;
1358 if (rlim.rlim_cur == ULONG_MAX)
1359 rlim.rlim_cur = LONG_MAX;
1360 rlim.rlim_max = (unsigned long)bsd_rlim.rlim_max;
1361 if (rlim.rlim_max == ULONG_MAX)
1362 rlim.rlim_max = LONG_MAX;
1364 return (copyout(&rlim, args->rlim, sizeof(rlim)));
1366 #endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */
1369 linux_getrlimit(struct thread *td, struct linux_getrlimit_args *args)
1371 struct l_rlimit rlim;
1372 struct proc *p = td->td_proc;
1373 struct rlimit bsd_rlim;
1377 if (ldebug(getrlimit))
1378 printf(ARGS(getrlimit, "%d, %p"),
1379 args->resource, (void *)args->rlim);
1382 if (args->resource >= LINUX_RLIM_NLIMITS)
1385 which = linux_to_bsd_resource[args->resource];
1390 lim_rlimit(p, which, &bsd_rlim);
1393 rlim.rlim_cur = (l_ulong)bsd_rlim.rlim_cur;
1394 rlim.rlim_max = (l_ulong)bsd_rlim.rlim_max;
1395 return (copyout(&rlim, args->rlim, sizeof(rlim)));
1399 linux_sched_setscheduler(struct thread *td,
1400 struct linux_sched_setscheduler_args *args)
1402 struct sched_param sched_param;
1407 if (ldebug(sched_setscheduler))
1408 printf(ARGS(sched_setscheduler, "%d, %d, %p"),
1409 args->pid, args->policy, (const void *)args->param);
1412 switch (args->policy) {
1413 case LINUX_SCHED_OTHER:
1414 policy = SCHED_OTHER;
1416 case LINUX_SCHED_FIFO:
1417 policy = SCHED_FIFO;
1419 case LINUX_SCHED_RR:
1426 error = copyin(args->param, &sched_param, sizeof(sched_param));
1430 tdt = linux_tdfind(td, args->pid, -1);
1434 error = kern_sched_setscheduler(td, tdt, policy, &sched_param);
1435 PROC_UNLOCK(tdt->td_proc);
1440 linux_sched_getscheduler(struct thread *td,
1441 struct linux_sched_getscheduler_args *args)
1447 if (ldebug(sched_getscheduler))
1448 printf(ARGS(sched_getscheduler, "%d"), args->pid);
1451 tdt = linux_tdfind(td, args->pid, -1);
1455 error = kern_sched_getscheduler(td, tdt, &policy);
1456 PROC_UNLOCK(tdt->td_proc);
1460 td->td_retval[0] = LINUX_SCHED_OTHER;
1463 td->td_retval[0] = LINUX_SCHED_FIFO;
1466 td->td_retval[0] = LINUX_SCHED_RR;
1473 linux_sched_get_priority_max(struct thread *td,
1474 struct linux_sched_get_priority_max_args *args)
1476 struct sched_get_priority_max_args bsd;
1479 if (ldebug(sched_get_priority_max))
1480 printf(ARGS(sched_get_priority_max, "%d"), args->policy);
1483 switch (args->policy) {
1484 case LINUX_SCHED_OTHER:
1485 bsd.policy = SCHED_OTHER;
1487 case LINUX_SCHED_FIFO:
1488 bsd.policy = SCHED_FIFO;
1490 case LINUX_SCHED_RR:
1491 bsd.policy = SCHED_RR;
1496 return (sys_sched_get_priority_max(td, &bsd));
1500 linux_sched_get_priority_min(struct thread *td,
1501 struct linux_sched_get_priority_min_args *args)
1503 struct sched_get_priority_min_args bsd;
1506 if (ldebug(sched_get_priority_min))
1507 printf(ARGS(sched_get_priority_min, "%d"), args->policy);
1510 switch (args->policy) {
1511 case LINUX_SCHED_OTHER:
1512 bsd.policy = SCHED_OTHER;
1514 case LINUX_SCHED_FIFO:
1515 bsd.policy = SCHED_FIFO;
1517 case LINUX_SCHED_RR:
1518 bsd.policy = SCHED_RR;
1523 return (sys_sched_get_priority_min(td, &bsd));
1526 #define REBOOT_CAD_ON 0x89abcdef
1527 #define REBOOT_CAD_OFF 0
1528 #define REBOOT_HALT 0xcdef0123
1529 #define REBOOT_RESTART 0x01234567
1530 #define REBOOT_RESTART2 0xA1B2C3D4
1531 #define REBOOT_POWEROFF 0x4321FEDC
1532 #define REBOOT_MAGIC1 0xfee1dead
1533 #define REBOOT_MAGIC2 0x28121969
1534 #define REBOOT_MAGIC2A 0x05121996
1535 #define REBOOT_MAGIC2B 0x16041998
1538 linux_reboot(struct thread *td, struct linux_reboot_args *args)
1540 struct reboot_args bsd_args;
1544 printf(ARGS(reboot, "0x%x"), args->cmd);
1547 if (args->magic1 != REBOOT_MAGIC1)
1550 switch (args->magic2) {
1552 case REBOOT_MAGIC2A:
1553 case REBOOT_MAGIC2B:
1559 switch (args->cmd) {
1561 case REBOOT_CAD_OFF:
1562 return (priv_check(td, PRIV_REBOOT));
1564 bsd_args.opt = RB_HALT;
1566 case REBOOT_RESTART:
1567 case REBOOT_RESTART2:
1570 case REBOOT_POWEROFF:
1571 bsd_args.opt = RB_POWEROFF;
1576 return (sys_reboot(td, &bsd_args));
1581 * The FreeBSD native getpid(2), getgid(2) and getuid(2) also modify
1582 * td->td_retval[1] when COMPAT_43 is defined. This clobbers registers that
1583 * are assumed to be preserved. The following lightweight syscalls fixes
1584 * this. See also linux_getgid16() and linux_getuid16() in linux_uid16.c
1586 * linux_getpid() - MP SAFE
1587 * linux_getgid() - MP SAFE
1588 * linux_getuid() - MP SAFE
1592 linux_getpid(struct thread *td, struct linux_getpid_args *args)
1597 printf(ARGS(getpid, ""));
1599 td->td_retval[0] = td->td_proc->p_pid;
1605 linux_gettid(struct thread *td, struct linux_gettid_args *args)
1607 struct linux_emuldata *em;
1611 printf(ARGS(gettid, ""));
1615 KASSERT(em != NULL, ("gettid: emuldata not found.\n"));
1617 td->td_retval[0] = em->em_tid;
1624 linux_getppid(struct thread *td, struct linux_getppid_args *args)
1628 if (ldebug(getppid))
1629 printf(ARGS(getppid, ""));
1632 PROC_LOCK(td->td_proc);
1633 td->td_retval[0] = td->td_proc->p_pptr->p_pid;
1634 PROC_UNLOCK(td->td_proc);
1639 linux_getgid(struct thread *td, struct linux_getgid_args *args)
1644 printf(ARGS(getgid, ""));
1647 td->td_retval[0] = td->td_ucred->cr_rgid;
1652 linux_getuid(struct thread *td, struct linux_getuid_args *args)
1657 printf(ARGS(getuid, ""));
1660 td->td_retval[0] = td->td_ucred->cr_ruid;
1666 linux_getsid(struct thread *td, struct linux_getsid_args *args)
1668 struct getsid_args bsd;
1672 printf(ARGS(getsid, "%i"), args->pid);
1675 bsd.pid = args->pid;
1676 return (sys_getsid(td, &bsd));
1680 linux_nosys(struct thread *td, struct nosys_args *ignore)
1687 linux_getpriority(struct thread *td, struct linux_getpriority_args *args)
1689 struct getpriority_args bsd_args;
1693 if (ldebug(getpriority))
1694 printf(ARGS(getpriority, "%i, %i"), args->which, args->who);
1697 bsd_args.which = args->which;
1698 bsd_args.who = args->who;
1699 error = sys_getpriority(td, &bsd_args);
1700 td->td_retval[0] = 20 - td->td_retval[0];
1705 linux_sethostname(struct thread *td, struct linux_sethostname_args *args)
1710 if (ldebug(sethostname))
1711 printf(ARGS(sethostname, "*, %i"), args->len);
1715 name[1] = KERN_HOSTNAME;
1716 return (userland_sysctl(td, name, 2, 0, 0, 0, args->hostname,
1721 linux_setdomainname(struct thread *td, struct linux_setdomainname_args *args)
1726 if (ldebug(setdomainname))
1727 printf(ARGS(setdomainname, "*, %i"), args->len);
1731 name[1] = KERN_NISDOMAINNAME;
1732 return (userland_sysctl(td, name, 2, 0, 0, 0, args->name,
1737 linux_exit_group(struct thread *td, struct linux_exit_group_args *args)
1741 if (ldebug(exit_group))
1742 printf(ARGS(exit_group, "%i"), args->error_code);
1745 LINUX_CTR2(exit_group, "thread(%d) (%d)", td->td_tid,
1749 * XXX: we should send a signal to the parent if
1750 * SIGNAL_EXIT_GROUP is set. We ignore that (temporarily?)
1751 * as it doesnt occur often.
1753 exit1(td, W_EXITCODE(args->error_code, 0));
1757 #define _LINUX_CAPABILITY_VERSION 0x19980330
1759 struct l_user_cap_header {
1764 struct l_user_cap_data {
1771 linux_capget(struct thread *td, struct linux_capget_args *args)
1773 struct l_user_cap_header luch;
1774 struct l_user_cap_data lucd;
1777 if (args->hdrp == NULL)
1780 error = copyin(args->hdrp, &luch, sizeof(luch));
1784 if (luch.version != _LINUX_CAPABILITY_VERSION) {
1785 luch.version = _LINUX_CAPABILITY_VERSION;
1786 error = copyout(&luch, args->hdrp, sizeof(luch));
1797 * The current implementation doesn't support setting
1798 * a capability (it's essentially a stub) so indicate
1799 * that no capabilities are currently set or available
1802 bzero (&lucd, sizeof(lucd));
1803 error = copyout(&lucd, args->datap, sizeof(lucd));
1810 linux_capset(struct thread *td, struct linux_capset_args *args)
1812 struct l_user_cap_header luch;
1813 struct l_user_cap_data lucd;
1816 if (args->hdrp == NULL || args->datap == NULL)
1819 error = copyin(args->hdrp, &luch, sizeof(luch));
1823 if (luch.version != _LINUX_CAPABILITY_VERSION) {
1824 luch.version = _LINUX_CAPABILITY_VERSION;
1825 error = copyout(&luch, args->hdrp, sizeof(luch));
1834 error = copyin(args->datap, &lucd, sizeof(lucd));
1838 /* We currently don't support setting any capabilities. */
1839 if (lucd.effective || lucd.permitted || lucd.inheritable) {
1841 "capset effective=0x%x, permitted=0x%x, "
1842 "inheritable=0x%x is not implemented",
1843 (int)lucd.effective, (int)lucd.permitted,
1844 (int)lucd.inheritable);
1852 linux_prctl(struct thread *td, struct linux_prctl_args *args)
1854 int error = 0, max_size;
1855 struct proc *p = td->td_proc;
1856 char comm[LINUX_MAX_COMM_LEN];
1857 struct linux_emuldata *em;
1862 printf(ARGS(prctl, "%d, %ju, %ju, %ju, %ju"), args->option,
1863 (uintmax_t)args->arg2, (uintmax_t)args->arg3,
1864 (uintmax_t)args->arg4, (uintmax_t)args->arg5);
1867 switch (args->option) {
1868 case LINUX_PR_SET_PDEATHSIG:
1869 if (!LINUX_SIG_VALID(args->arg2))
1872 KASSERT(em != NULL, ("prctl: emuldata not found.\n"));
1873 em->pdeath_signal = args->arg2;
1875 case LINUX_PR_GET_PDEATHSIG:
1877 KASSERT(em != NULL, ("prctl: emuldata not found.\n"));
1878 pdeath_signal = em->pdeath_signal;
1879 error = copyout(&pdeath_signal,
1880 (void *)(register_t)args->arg2,
1881 sizeof(pdeath_signal));
1883 case LINUX_PR_GET_KEEPCAPS:
1885 * Indicate that we always clear the effective and
1886 * permitted capability sets when the user id becomes
1887 * non-zero (actually the capability sets are simply
1888 * always zero in the current implementation).
1890 td->td_retval[0] = 0;
1892 case LINUX_PR_SET_KEEPCAPS:
1894 * Ignore requests to keep the effective and permitted
1895 * capability sets when the user id becomes non-zero.
1898 case LINUX_PR_SET_NAME:
1900 * To be on the safe side we need to make sure to not
1901 * overflow the size a linux program expects. We already
1902 * do this here in the copyin, so that we don't need to
1905 max_size = MIN(sizeof(comm), sizeof(p->p_comm));
1906 error = copyinstr((void *)(register_t)args->arg2, comm,
1909 /* Linux silently truncates the name if it is too long. */
1910 if (error == ENAMETOOLONG) {
1912 * XXX: copyinstr() isn't documented to populate the
1913 * array completely, so do a copyin() to be on the
1914 * safe side. This should be changed in case
1915 * copyinstr() is changed to guarantee this.
1917 error = copyin((void *)(register_t)args->arg2, comm,
1919 comm[max_size - 1] = '\0';
1925 strlcpy(p->p_comm, comm, sizeof(p->p_comm));
1928 case LINUX_PR_GET_NAME:
1930 strlcpy(comm, p->p_comm, sizeof(comm));
1932 error = copyout(comm, (void *)(register_t)args->arg2,
1944 linux_sched_setparam(struct thread *td,
1945 struct linux_sched_setparam_args *uap)
1947 struct sched_param sched_param;
1952 if (ldebug(sched_setparam))
1953 printf(ARGS(sched_setparam, "%d, *"), uap->pid);
1956 error = copyin(uap->param, &sched_param, sizeof(sched_param));
1960 tdt = linux_tdfind(td, uap->pid, -1);
1964 error = kern_sched_setparam(td, tdt, &sched_param);
1965 PROC_UNLOCK(tdt->td_proc);
1970 linux_sched_getparam(struct thread *td,
1971 struct linux_sched_getparam_args *uap)
1973 struct sched_param sched_param;
1978 if (ldebug(sched_getparam))
1979 printf(ARGS(sched_getparam, "%d, *"), uap->pid);
1982 tdt = linux_tdfind(td, uap->pid, -1);
1986 error = kern_sched_getparam(td, tdt, &sched_param);
1987 PROC_UNLOCK(tdt->td_proc);
1989 error = copyout(&sched_param, uap->param,
1990 sizeof(sched_param));
1995 * Get affinity of a process.
1998 linux_sched_getaffinity(struct thread *td,
1999 struct linux_sched_getaffinity_args *args)
2003 struct cpuset_getaffinity_args cga;
2006 if (ldebug(sched_getaffinity))
2007 printf(ARGS(sched_getaffinity, "%d, %d, *"), args->pid,
2010 if (args->len < sizeof(cpuset_t))
2013 tdt = linux_tdfind(td, args->pid, -1);
2017 PROC_UNLOCK(tdt->td_proc);
2018 cga.level = CPU_LEVEL_WHICH;
2019 cga.which = CPU_WHICH_TID;
2020 cga.id = tdt->td_tid;
2021 cga.cpusetsize = sizeof(cpuset_t);
2022 cga.mask = (cpuset_t *) args->user_mask_ptr;
2024 if ((error = sys_cpuset_getaffinity(td, &cga)) == 0)
2025 td->td_retval[0] = sizeof(cpuset_t);
2031 * Set affinity of a process.
2034 linux_sched_setaffinity(struct thread *td,
2035 struct linux_sched_setaffinity_args *args)
2037 struct cpuset_setaffinity_args csa;
2041 if (ldebug(sched_setaffinity))
2042 printf(ARGS(sched_setaffinity, "%d, %d, *"), args->pid,
2045 if (args->len < sizeof(cpuset_t))
2048 tdt = linux_tdfind(td, args->pid, -1);
2052 PROC_UNLOCK(tdt->td_proc);
2053 csa.level = CPU_LEVEL_WHICH;
2054 csa.which = CPU_WHICH_TID;
2055 csa.id = tdt->td_tid;
2056 csa.cpusetsize = sizeof(cpuset_t);
2057 csa.mask = (cpuset_t *) args->user_mask_ptr;
2059 return (sys_cpuset_setaffinity(td, &csa));
2062 struct linux_rlimit64 {
2068 linux_prlimit64(struct thread *td, struct linux_prlimit64_args *args)
2070 struct rlimit rlim, nrlim;
2071 struct linux_rlimit64 lrlim;
2078 if (ldebug(prlimit64))
2079 printf(ARGS(prlimit64, "%d, %d, %p, %p"), args->pid,
2080 args->resource, (void *)args->new, (void *)args->old);
2083 if (args->resource >= LINUX_RLIM_NLIMITS)
2086 which = linux_to_bsd_resource[args->resource];
2090 if (args->new != NULL) {
2092 * Note. Unlike FreeBSD where rlim is signed 64-bit Linux
2093 * rlim is unsigned 64-bit. FreeBSD treats negative limits
2094 * as INFINITY so we do not need a conversion even.
2096 error = copyin(args->new, &nrlim, sizeof(nrlim));
2101 flags = PGET_HOLD | PGET_NOTWEXIT;
2102 if (args->new != NULL)
2103 flags |= PGET_CANDEBUG;
2105 flags |= PGET_CANSEE;
2106 error = pget(args->pid, flags, &p);
2110 if (args->old != NULL) {
2112 lim_rlimit(p, which, &rlim);
2114 if (rlim.rlim_cur == RLIM_INFINITY)
2115 lrlim.rlim_cur = LINUX_RLIM_INFINITY;
2117 lrlim.rlim_cur = rlim.rlim_cur;
2118 if (rlim.rlim_max == RLIM_INFINITY)
2119 lrlim.rlim_max = LINUX_RLIM_INFINITY;
2121 lrlim.rlim_max = rlim.rlim_max;
2122 error = copyout(&lrlim, args->old, sizeof(lrlim));
2127 if (args->new != NULL)
2128 error = kern_proc_setrlimit(td, p, which, &nrlim);
2136 linux_pselect6(struct thread *td, struct linux_pselect6_args *args)
2138 struct timeval utv, tv0, tv1, *tvp;
2139 struct l_pselect6arg lpse6;
2140 struct l_timespec lts;
2141 struct timespec uts;
2148 if (args->sig != NULL) {
2149 error = copyin(args->sig, &lpse6, sizeof(lpse6));
2152 if (lpse6.ss_len != sizeof(l_ss))
2154 if (lpse6.ss != 0) {
2155 error = copyin(PTRIN(lpse6.ss), &l_ss,
2159 linux_to_bsd_sigset(&l_ss, &ss);
2165 * Currently glibc changes nanosecond number to microsecond.
2166 * This mean losing precision but for now it is hardly seen.
2168 if (args->tsp != NULL) {
2169 error = copyin(args->tsp, <s, sizeof(lts));
2172 error = linux_to_native_timespec(&uts, <s);
2176 TIMESPEC_TO_TIMEVAL(&utv, &uts);
2177 if (itimerfix(&utv))
2185 error = kern_pselect(td, args->nfds, args->readfds, args->writefds,
2186 args->exceptfds, tvp, ssp, LINUX_NFDBITS);
2188 if (error == 0 && args->tsp != NULL) {
2189 if (td->td_retval[0] != 0) {
2191 * Compute how much time was left of the timeout,
2192 * by subtracting the current time and the time
2193 * before we started the call, and subtracting
2194 * that result from the user-supplied value.
2198 timevalsub(&tv1, &tv0);
2199 timevalsub(&utv, &tv1);
2205 TIMEVAL_TO_TIMESPEC(&utv, &uts);
2207 native_to_linux_timespec(<s, &uts);
2208 error = copyout(<s, args->tsp, sizeof(lts));
2215 linux_ppoll(struct thread *td, struct linux_ppoll_args *args)
2217 struct timespec ts0, ts1;
2218 struct l_timespec lts;
2219 struct timespec uts, *tsp;
2225 if (args->sset != NULL) {
2226 if (args->ssize != sizeof(l_ss))
2228 error = copyin(args->sset, &l_ss, sizeof(l_ss));
2231 linux_to_bsd_sigset(&l_ss, &ss);
2235 if (args->tsp != NULL) {
2236 error = copyin(args->tsp, <s, sizeof(lts));
2239 error = linux_to_native_timespec(&uts, <s);
2248 error = kern_poll(td, args->fds, args->nfds, tsp, ssp);
2250 if (error == 0 && args->tsp != NULL) {
2251 if (td->td_retval[0]) {
2253 timespecsub(&ts1, &ts0);
2254 timespecsub(&uts, &ts1);
2256 timespecclear(&uts);
2258 timespecclear(&uts);
2260 native_to_linux_timespec(<s, &uts);
2261 error = copyout(<s, args->tsp, sizeof(lts));
2267 #if defined(DEBUG) || defined(KTR)
2268 /* XXX: can be removed when every ldebug(...) and KTR stuff are removed. */
2270 u_char linux_debug_map[howmany(LINUX_SYS_MAXSYSCALL, sizeof(u_char))];
2273 linux_debug(int syscall, int toggle, int global)
2277 char c = toggle ? 0 : 0xff;
2279 memset(linux_debug_map, c, sizeof(linux_debug_map));
2282 if (syscall < 0 || syscall >= LINUX_SYS_MAXSYSCALL)
2285 clrbit(linux_debug_map, syscall);
2287 setbit(linux_debug_map, syscall);
2292 * Usage: sysctl linux.debug=<syscall_nr>.<0/1>
2294 * E.g.: sysctl linux.debug=21.0
2296 * As a special case, syscall "all" will apply to all syscalls globally.
2298 #define LINUX_MAX_DEBUGSTR 16
2300 linux_sysctl_debug(SYSCTL_HANDLER_ARGS)
2302 char value[LINUX_MAX_DEBUGSTR], *p;
2303 int error, sysc, toggle;
2307 error = sysctl_handle_string(oidp, value, LINUX_MAX_DEBUGSTR, req);
2308 if (error || req->newptr == NULL)
2310 for (p = value; *p != '\0' && *p != '.'; p++);
2314 sysc = strtol(value, NULL, 0);
2315 toggle = strtol(p, NULL, 0);
2316 if (strcmp(value, "all") == 0)
2318 error = linux_debug(sysc, toggle, global);
2322 #endif /* DEBUG || KTR */
2325 linux_sched_rr_get_interval(struct thread *td,
2326 struct linux_sched_rr_get_interval_args *uap)
2329 struct l_timespec lts;
2334 * According to man in case the invalid pid specified
2335 * EINVAL should be returned.
2340 tdt = linux_tdfind(td, uap->pid, -1);
2344 error = kern_sched_rr_get_interval_td(td, tdt, &ts);
2345 PROC_UNLOCK(tdt->td_proc);
2348 native_to_linux_timespec(<s, &ts);
2349 return (copyout(<s, uap->interval, sizeof(lts)));
2353 * In case when the Linux thread is the initial thread in
2354 * the thread group thread id is equal to the process id.
2355 * Glibc depends on this magic (assert in pthread_getattr_np.c).
2358 linux_tdfind(struct thread *td, lwpid_t tid, pid_t pid)
2360 struct linux_emuldata *em;
2365 if (tid == 0 || tid == td->td_tid) {
2367 PROC_LOCK(tdt->td_proc);
2368 } else if (tid > PID_MAX)
2369 tdt = tdfind(tid, pid);
2372 * Initial thread where the tid equal to the pid.
2376 if (SV_PROC_ABI(p) != SV_ABI_LINUX) {
2378 * p is not a Linuxulator process.
2383 FOREACH_THREAD_IN_PROC(p, tdt) {
2385 if (tid == em->em_tid)
2397 linux_to_bsd_waitopts(int options, int *bsdopts)
2400 if (options & LINUX_WNOHANG)
2401 *bsdopts |= WNOHANG;
2402 if (options & LINUX_WUNTRACED)
2403 *bsdopts |= WUNTRACED;
2404 if (options & LINUX_WEXITED)
2405 *bsdopts |= WEXITED;
2406 if (options & LINUX_WCONTINUED)
2407 *bsdopts |= WCONTINUED;
2408 if (options & LINUX_WNOWAIT)
2409 *bsdopts |= WNOWAIT;
2411 if (options & __WCLONE)
2412 *bsdopts |= WLINUXCLONE;