bc2813df5e
alloc_hugepages.2, arch_prctl.2, capget.2, clone.2, delete_module.2, exit_group.2, get_robust_list.2, getunwind.2, init_module.2: Add note about the use of syscall(2)
...
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2021-05-11 17:28:45 +12:00
fe10d82f6e
clone.2: tfix
...
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2021-05-10 11:17:11 +12:00
1874ca39ba
clone.2: tfix
...
Despite my mention of this spawning a hilarious discussion
on IRC, this alignment restriction should be 128-bit, not
126-bit.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2021-05-10 09:09:11 +12:00
a380538369
clone.2: Use syscall(SYS_...); for system calls without a wrapper
...
The CLONE_* constants seem to be available from either
<linux/sched.h> or <sched.h>, and since clone3() already
includes <linux/sched.h> for 'struct clone_args', <sched.h>
is not really needed, AFAICS; however, to avoid confusion,
I also included <sched.h> for clone3() for consistency:
clone() is getting CLONE_* from <sched.h>, and it would confuse
the reader if clone3() got the same CLONE_* constants from a
different header.
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2021-04-05 13:44:42 +02:00
1d767b552e
getent.1, ldd.1, locale.1, localedef.1, memusage.1, memusagestat.1, mtrace.1, _exit.2, _syscall.2, accept.2, access.2, acct.2, add_key.2, adjtimex.2, alloc_hugepages.2, arch_prctl.2, bdflush.2, bind.2, bpf.2, brk.2, cacheflush.2, capget.2, chdir.2, chmod.2, chown.2, chroot.2, clock_getres.2, clock_nanosleep.2, clone.2, close.2, close_range.2, connect.2, copy_file_range.2, create_module.2, delete_module.2, dup.2, epoll_create.2, epoll_ctl.2, epoll_wait.2, eventfd.2, execve.2, execveat.2, fanotify_init.2, fanotify_mark.2, fcntl.2, flock.2, fork.2, fsync.2, futex.2, get_kernel_syms.2, get_mempolicy.2, get_robust_list.2, getcpu.2, getdents.2, getdomainname.2, getgid.2, getgroups.2, gethostname.2, getitimer.2, getpagesize.2, getpeername.2, getpid.2, getpriority.2, getrandom.2, getresuid.2, getrlimit.2, getrusage.2, getsid.2, getsockname.2, getsockopt.2, gettid.2, gettimeofday.2, getuid.2, getunwind.2, getxattr.2, idle.2, init_module.2, inotify_add_watch.2, inotify_rm_watch.2, io_cancel.2, io_destroy.2, io_getevents.2, io_setup.2, io_submit.2, ioctl.2, ioctl_console.2, ioctl_fat.2, ioctl_ficlonerange.2, ioctl_fideduperange.2, ioctl_fslabel.2, ioctl_getfsmap.2, ioctl_ns.2, ioctl_tty.2, ioctl_userfaultfd.2, ioperm.2, iopl.2, ipc.2, kcmp.2, kexec_load.2, keyctl.2, kill.2, link.2, listen.2, listxattr.2, llseek.2, lookup_dcookie.2, lseek.2, madvise.2, mbind.2, membarrier.2, memfd_create.2, migrate_pages.2, mincore.2, mkdir.2, mknod.2, mlock.2, mmap.2, mmap2.2, modify_ldt.2, mount.2, move_pages.2, mprotect.2, mq_getsetattr.2, mremap.2, msgctl.2, msgget.2, msgop.2, msync.2, nanosleep.2, nfsservctl.2, nice.2, open.2, open_by_handle_at.2, openat2.2, pause.2, pciconfig_read.2, perf_event_open.2, perfmonctl.2, personality.2, pidfd_getfd.2, pidfd_open.2, pidfd_send_signal.2, pipe.2, pivot_root.2, pkey_alloc.2, poll.2, posix_fadvise.2, prctl.2, pread.2, process_vm_readv.2, ptrace.2, query_module.2, quotactl.2, read.2, readahead.2, readdir.2, readlink.2, readv.2, reboot.2, recv.2, remap_file_pages.2, removexattr.2, rename.2, request_key.2, restart_syscall.2, rmdir.2, rt_sigqueueinfo.2, s390_guarded_storage.2, s390_pci_mmio_write.2, s390_runtime_instr.2, s390_sthyi.2, sched_get_priority_max.2, sched_rr_get_interval.2, sched_setaffinity.2, sched_setattr.2, sched_setparam.2, sched_setscheduler.2, sched_yield.2, seccomp.2, select.2, select_tut.2, semctl.2, semget.2, semop.2, send.2, sendfile.2, set_thread_area.2, seteuid.2, setfsgid.2, setfsuid.2, setgid.2, setpgid.2, setresuid.2, setreuid.2, setsid.2, setuid.2, setup.2, setxattr.2, sgetmask.2, shmctl.2, shmget.2, shmop.2, shutdown.2, sigaction.2, sigaltstack.2, signal.2, signalfd.2, sigpending.2, sigprocmask.2, sigreturn.2, sigsuspend.2, sigwaitinfo.2, socket.2, socketcall.2, socketpair.2, splice.2, spu_create.2, spu_run.2, stat.2, statfs.2, statx.2, stime.2, subpage_prot.2, swapon.2, symlink.2, sync.2, sync_file_range.2, syscall.2, syscalls.2, sysctl.2, sysfs.2, sysinfo.2, syslog.2, time.2, timer_create.2, timer_delete.2, timer_getoverrun.2, timer_settime.2, timerfd_create.2, times.2, tkill.2, truncate.2, umask.2, umount.2, uname.2, unimplemented.2, unlink.2, unshare.2, uselib.2, userfaultfd.2, ustat.2, utime.2, utimensat.2, vfork.2, vhangup.2, vm86.2, vmsplice.2, wait.2, wait4.2, write.2, CPU_SET.3, __ppc_get_timebase.3, __ppc_set_ppr_med.3, __ppc_yield.3, __setfpucw.3, a64l.3, abort.3, abs.3, acos.3, acosh.3, addseverity.3, adjtime.3, aio_cancel.3, aio_error.3, aio_fsync.3, aio_read.3, aio_return.3, aio_suspend.3, aio_write.3, alloca.3, argz_add.3, asin.3, asinh.3, asprintf.3, assert.3, assert_perror.3, atan.3, atan2.3, atanh.3, atexit.3, atof.3, atoi.3, backtrace.3, basename.3, bcmp.3, bcopy.3, bindresvport.3, bsd_signal.3, bsearch.3, bstring.3, btowc.3, byteorder.3, bzero.3, cabs.3, cacos.3, cacosh.3, canonicalize_file_name.3, carg.3, casin.3, casinh.3, catan.3, catanh.3, catgets.3, catopen.3, cbrt.3, ccos.3, ccosh.3, ceil.3, cexp.3, cexp2.3, cfree.3, cimag.3, circleq.3, clearenv.3, clock.3, clock_getcpuclockid.3, clog.3, clog10.3, clog2.3, closedir.3, cmsg.3, confstr.3, conj.3, copysign.3, cos.3, cosh.3, cpow.3, cproj.3, creal.3, crypt.3, csin.3, csinh.3, csqrt.3, ctan.3, ctanh.3, ctermid.3, ctime.3, daemon.3, des_crypt.3, difftime.3, dirfd.3, div.3, dl_iterate_phdr.3, dladdr.3, dlerror.3, dlinfo.3, dlopen.3, dlsym.3, drand48.3, drand48_r.3, duplocale.3, dysize.3, ecvt.3, ecvt_r.3, encrypt.3, endian.3, envz_add.3, erf.3, erfc.3, err.3, errno.3, error.3, ether_aton.3, euidaccess.3, exec.3, exit.3, exp.3, exp10.3, exp2.3, expm1.3, fabs.3, fclose.3, fcloseall.3, fdim.3, fenv.3, ferror.3, fexecve.3, fflush.3, ffs.3, fgetc.3, fgetgrent.3, fgetpwent.3, fgetwc.3, fgetws.3, fileno.3, finite.3, flockfile.3, floor.3, fma.3, fmax.3, fmemopen.3, fmin.3, fmod.3, fmtmsg.3, fnmatch.3, fopen.3, fopencookie.3, fpathconf.3, fpclassify.3, fpurge.3, fputwc.3, fputws.3, fread.3, frexp.3, fseek.3, fseeko.3, ftime.3, ftok.3, fts.3, ftw.3, futimes.3, fwide.3, gamma.3, gcvt.3, get_nprocs_conf.3, get_phys_pages.3, getaddrinfo.3, getaddrinfo_a.3, getauxval.3, getcontext.3, getcwd.3, getdate.3, getdirentries.3, getdtablesize.3, getentropy.3, getenv.3, getfsent.3, getgrent.3, getgrent_r.3, getgrnam.3, getgrouplist.3, gethostbyname.3, gethostid.3, getifaddrs.3, getipnodebyname.3, getline.3, getloadavg.3, getlogin.3, getmntent.3, getnameinfo.3, getnetent.3, getnetent_r.3, getopt.3, getpass.3, getprotoent.3, getprotoent_r.3, getpt.3, getpw.3, getpwent.3, getpwent_r.3, getpwnam.3, getrpcent.3, getrpcent_r.3, getrpcport.3, gets.3, getservent.3, getservent_r.3, getspnam.3, getsubopt.3, getttyent.3, getumask.3, getusershell.3, getutent.3, getutmp.3, getw.3, getwchar.3, glob.3, gnu_get_libc_version.3, grantpt.3, group_member.3, gsignal.3, hsearch.3, hypot.3, iconv.3, iconv_close.3, iconv_open.3, if_nameindex.3, if_nametoindex.3, ilogb.3, index.3, inet.3, inet_net_pton.3, inet_ntop.3, inet_pton.3, initgroups.3, insque.3, isalpha.3, isatty.3, isfdtype.3, isgreater.3, iswalnum.3, iswalpha.3, iswblank.3, iswcntrl.3, iswctype.3, iswdigit.3, iswgraph.3, iswlower.3, iswprint.3, iswpunct.3, iswspace.3, iswupper.3, iswxdigit.3, j0.3, key_setsecret.3, killpg.3, ldexp.3, lgamma.3, lio_listio.3, list.3, localeconv.3, lockf.3, log.3, log10.3, log1p.3, log2.3, logb.3, login.3, lrint.3, lround.3, lsearch.3, lseek64.3, makecontext.3, makedev.3, mallinfo.3, malloc.3, malloc_get_state.3, malloc_hook.3, malloc_info.3, malloc_stats.3, malloc_trim.3, malloc_usable_size.3, mallopt.3, matherr.3, mblen.3, mbrlen.3, mbrtowc.3, mbsinit.3, mbsnrtowcs.3, mbsrtowcs.3, mbstowcs.3, mbtowc.3, mcheck.3, memccpy.3, memchr.3, memcmp.3, memcpy.3, memfrob.3, memmem.3, memmove.3, mempcpy.3, memset.3, mkdtemp.3, mkfifo.3, mkstemp.3, mktemp.3, modf.3, mpool.3, mq_close.3, mq_getattr.3, mq_notify.3, mq_open.3, mq_receive.3, mq_send.3, mq_unlink.3, mtrace.3, nan.3, newlocale.3, nextafter.3, nextup.3, nl_langinfo.3, ntp_gettime.3, on_exit.3, open_memstream.3, opendir.3, openpty.3, perror.3, popen.3, posix_fallocate.3, posix_madvise.3, posix_memalign.3, posix_openpt.3, posix_spawn.3, pow.3, pow10.3, printf.3, profil.3, psignal.3, pthread_attr_init.3, pthread_attr_setaffinity_np.3, pthread_attr_setdetachstate.3, pthread_attr_setguardsize.3, pthread_attr_setinheritsched.3, pthread_attr_setschedparam.3, pthread_attr_setschedpolicy.3, pthread_attr_setscope.3, pthread_attr_setsigmask_np.3, pthread_attr_setstack.3, pthread_attr_setstackaddr.3, pthread_attr_setstacksize.3, pthread_cancel.3, pthread_cleanup_push.3, pthread_cleanup_push_defer_np.3, pthread_create.3, pthread_detach.3, pthread_equal.3, pthread_exit.3, pthread_getattr_default_np.3, pthread_getattr_np.3, pthread_getcpuclockid.3, pthread_join.3, pthread_kill.3, pthread_kill_other_threads_np.3, pthread_mutex_consistent.3, pthread_mutexattr_getpshared.3, pthread_mutexattr_setrobust.3, pthread_rwlockattr_setkind_np.3, pthread_self.3, pthread_setaffinity_np.3, pthread_setcancelstate.3, pthread_setconcurrency.3, pthread_setname_np.3, pthread_setschedparam.3, pthread_setschedprio.3, pthread_sigmask.3, pthread_sigqueue.3, pthread_spin_init.3, pthread_spin_lock.3, pthread_testcancel.3, pthread_tryjoin_np.3, pthread_yield.3, ptsname.3, putenv.3, putgrent.3, putpwent.3, puts.3, putwchar.3, qecvt.3, qsort.3, raise.3, rand.3, random.3, random_r.3, rcmd.3, re_comp.3, readdir.3, readdir_r.3, realpath.3, regex.3, remainder.3, remove.3, remquo.3, resolver.3, rewinddir.3, rexec.3, rint.3, round.3, rpc.3, rpmatch.3, rtime.3, rtnetlink.3, scalb.3, scalbln.3, scandir.3, scanf.3, sched_getcpu.3, seekdir.3, sem_close.3, sem_destroy.3, sem_getvalue.3, sem_init.3, sem_open.3, sem_post.3, sem_unlink.3, sem_wait.3, setaliasent.3, setbuf.3, setenv.3, setjmp.3, setlocale.3, setlogmask.3, setnetgrent.3, shm_open.3, siginterrupt.3, signbit.3, significand.3, sigpause.3, sigqueue.3, sigset.3, sigsetops.3, sigvec.3, sigwait.3, sin.3, sincos.3, sinh.3, sleep.3, slist.3, sockatmark.3, sqrt.3, stailq.3, statvfs.3, stdarg.3, stdio.3, stdio_ext.3, stpcpy.3, stpncpy.3, strcasecmp.3, strcat.3, strchr.3, strcmp.3, strcoll.3, strcpy.3, strdup.3, strerror.3, strfmon.3, strfromd.3, strfry.3, strftime.3, string.3, strlen.3, strnlen.3, strpbrk.3, strptime.3, strsep.3, strsignal.3, strspn.3, strstr.3, strtod.3, strtoimax.3, strtok.3, strtol.3, strtoul.3, strverscmp.3, strxfrm.3, swab.3, sysconf.3, syslog.3, system.3, sysv_signal.3, tailq.3, tan.3, tanh.3, tcgetpgrp.3, tcgetsid.3, telldir.3, tempnam.3, termios.3, tgamma.3, timegm.3, timeradd.3, tmpfile.3, tmpnam.3, toascii.3, toupper.3, towctrans.3, towlower.3, towupper.3, trunc.3, tsearch.3, ttyname.3, ttyslot.3, tzset.3, ualarm.3, ulimit.3, undocumented.3, ungetwc.3, unlocked_stdio.3, unlockpt.3, updwtmp.3, uselocale.3, usleep.3, wcpcpy.3, wcpncpy.3, wcrtomb.3, wcscasecmp.3, wcscat.3, wcschr.3, wcscmp.3, wcscpy.3, wcscspn.3, wcsdup.3, wcslen.3, wcsncasecmp.3, wcsncat.3, wcsncmp.3, wcsncpy.3, wcsnlen.3, wcsnrtombs.3, wcspbrk.3, wcsrchr.3, wcsrtombs.3, wcsspn.3, wcsstr.3, wcstoimax.3, wcstok.3, wcstombs.3, wcswidth.3, wctob.3, wctomb.3, wctrans.3, wctype.3, wcwidth.3, wmemchr.3, wmemcmp.3, wmemcpy.3, wmemmove.3, wmemset.3, wordexp.3, wprintf.3, xcrypt.3, xdr.3, y0.3, cciss.4, console_codes.4, dsp56k.4, hpsa.4, initrd.4, loop.4, lp.4, msr.4, random.4, rtc.4, smartpqi.4, veth.4, wavelan.4, acct.5, core.5, elf.5, hosts.5, locale.5, proc.5, resolv.conf.5, rpc.5, slabinfo.5, sysfs.5, tmpfs.5, utmp.5, address_families.7, aio.7, attributes.7, bootparam.7, capabilities.7, cgroups.7, complex.7, ddp.7, environ.7, epoll.7, fanotify.7, feature_test_macros.7, hier.7, inode.7, inotify.7, ip.7, ipv6.7, keyrings.7, locale.7, man-pages.7, man.7, math_error.7, mount_namespaces.7, namespaces.7, netdevice.7, netlink.7, numa.7, packet.7, pkeys.7, pthreads.7, queue.7, raw.7, rtnetlink.7, sched.7, session-keyring.7, shm_overview.7, sigevent.7, signal-safety.7, signal.7, sock_diag.7, socket.7, spufs.7, symlink.7, system_data_types.7, tcp.7, time_namespaces.7, udp.7, udplite.7, unicode.7, unix.7, uri.7, user_namespaces.7, vdso.7, vsock.7, x25.7, iconvconfig.8, ld.so.8, ldconfig.8, sln.8, tzselect.8: tstamp
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2021-03-22 00:15:34 +01:00
2a1b1111ca
clone.2: tfix
...
For the alternate signal stack to be cleared, CLONE_VM should and
CLONE_VFORK should not be specified.
[mtk: fixes my commit 52e5819c41
2021-01-19 08:54:41 +01:00
e71d103b2c
clone.2: Fix types in clone_args
...
A file descriptor is an int so it should be stored through an int
pointer while parent_tid should have the same type as child_tid
which is pid_t pointer.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2021-01-11 09:17:47 +01:00
95887a0039
clone.2: wfix
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2021-01-09 09:51:59 +01:00
f6a4078be5
Various pages: Standardize wording around setting of 'errno' on error
...
In the RETURN VALUE sections, a number of different wordings
are used in to describe the fact that 'errno' is set on error.
There's no reason for the difference in wordings, since the same
thing is being described in each case. Switch to a standard
wording that is the same as FreeBSD and similar to the wording
used in POSIX.1.
In this change, fix some instances stating that 'errno' is set
"appropriately" to instead say "to indicate the error".
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2021-01-07 14:27:35 +01:00
0b174fe008
clone.2, ioctl_tty.2, syslog.2, setlocale.3, stdio.3, console_codes.4, inode.7, namespaces.7, netlink.7, signal-safety.7, socket.7: Better table formatting
...
In particular, allow for rendering in widths different from
(especially less than) 80 columns.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2021-01-07 00:05:48 +01:00
632d115294
Various pages: Normalize SYNOPSIS notes about nonexistent glibc wrappers
...
To easily distinguish documentation about glibc wrappers from
documentation about kernel syscalls, let's have a normalized
'Note' in the SYNOPSIS, and a further explanation in the page body
(NOTES in most of them), as already happened in many (but not all)
of the manual pages for syscalls without a wrapper. Furthermore,
let's normalize the messages, following membarrier.2 (because it's
already quite extended), so that it's easy to use grep to find
those pages.
To find these pages, we used:
$ grep -rn wrapper man? | sort -V
and
$ grep -rni support.*glibc | sort -V
delete_module.2, init_module.2: glibc 2.23 is no longer
maintained, so we changed the notes about wrappers, to say that
there are no glibc wrappers for these system calls; see NOTES.
We didn't fix some obsolete pages such as create_module.2.
Signed-off-by: Ganimedes Colomar <gacoan.linux@gmail.com>
Cowritten-by: Alejandro Colomar <alx.manpages@gmail.com>
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2020-12-30 16:55:39 +01:00
c6beb8a167
bind.2, clone.2, dup.2, futex.2, mprotect.2, open_by_handle_at.2, pivot_root.2, select_tut.2, shmop.2, timer_create.2, userfaultfd.2, getaddrinfo.3, getaddrinfo_a.3, inet_net_pton.3, malloc_info.3, mbstowcs.3, newlocale.3, posix_spawn.3, pthread_sigmask.3, shm_open.3, strtol.3, inotify.7, user_namespaces.7: Add periods at end of sentences in comments
...
Try to bring a little more consistency on the use of periods
in comments in example code.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2020-12-27 12:32:44 +01:00
52e5819c41
clone.2, sigaltstack.2: clone(CLONE_VM) disdables the alternate signal stack
...
In the kernel sources (kernel/fork.c::copy_process()), we have:
/*
* sigaltstack should be cleared when sharing the same VM
*/
if ((clone_flags & (CLONE_VM|CLONE_VFORK)) == CLONE_VM)
sas_ss_reset(p);
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2020-11-12 14:07:17 +01:00
3fde8c2e45
memusage.1, pldd.1, sprof.1, add_key.2, bind.2, bpf.2, clone.2, dup.2, epoll_ctl.2, eventfd.2, fanotify_init.2, fanotify_mark.2, futex.2, getdents.2, getpid.2, getrlimit.2, intro.2, ioctl_fat.2, ioctl_ns.2, kcmp.2, keyctl.2, membarrier.2, memfd_create.2, mprotect.2, msgctl.2, msgop.2, nfsservctl.2, open.2, open_by_handle_at.2, openat2.2, outb.2, perf_event_open.2, pivot_root.2, recv.2, recvmmsg.2, request_key.2, sched_setaffinity.2, sched_setattr.2, seccomp.2, select.2, send.2, signalfd.2, spu_run.2, sysctl.2, timer_create.2, userfaultfd.2, wait.2, CPU_SET.3, abs.3, argz_add.3, backtrace.3, bsearch.3, bswap.3, clock_getcpuclockid.3, cmsg.3, dl_iterate_phdr.3, dlinfo.3, dlopen.3, drand48.3, drand48_r.3, duplocale.3, encrypt.3, endian.3, envz_add.3, errno.3, ffs.3, fopencookie.3, get_phys_pages.3, getaddrinfo.3, getaddrinfo_a.3, getdate.3, getgrent_r.3, getgrouplist.3, getifaddrs.3, getline.3, getprotoent_r.3, getpwent_r.3, getpwnam.3, getservent_r.3, hsearch.3, insque.3, intro.3, lrint.3, lround.3, lseek64.3, mallinfo.3, malloc_hook.3, malloc_info.3, mbsinit.3, mbstowcs.3, mtrace.3, newlocale.3, ntp_gettime.3, offsetof.3, perror.3, posix_fallocate.3, posix_spawn.3, printf.3, psignal.3, pthread_attr_init.3, pthread_create.3, pthread_getattr_np.3, pthread_getcpuclockid.3, pthread_setaffinity_np.3, pthread_setname_np.3, pthread_sigmask.3, qsort.3, rand.3, random.3, rpc.3, rtnetlink.3, scalbln.3, shm_open.3, stdarg.3, strcat.3, strerror.3, strfmon.3, strptime.3, strsignal.3, strtod.3, strtok.3, strtol.3, strtoul.3, tsearch.3, wordexp.3, loop.4, vcs.4, veth.4, core.5, locale.5, slabinfo.5, cgroup_namespaces.7, cpuset.7, credentials.7, fanotify.7, feature_test_macros.7, inotify.7, ip.7, kernel_lockdown.7, man.7, mount_namespaces.7, namespaces.7, pid_namespaces.7, rtld-audit.7, sigevent.7, sock_diag.7, standards.7, unix.7, user_namespaces.7: tstamp
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2020-11-01 21:56:08 +01:00
1e4d6750e0
clone.2: CAP_CHECKPOINT_RESTORE can now be used to employ 'set_tid'
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2020-10-27 14:51:44 +01:00
161b8eda4d
clone.2, io_submit.2, select.2, shmget.2, getcontext.3, malloc_info.3, mtrace.3, posix_spawn.3, strfromd.3, proc.5: srcfix
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2020-09-29 14:24:12 +02:00
861d36ba31
pldd.1, bpf.2, clone.2, dup.2, ioctl_fat.2, nfsservctl.2, open_by_handle_at.2, perf_event_open.2, pivot_root.2, request_key.2, sched_setaffinity.2, seccomp.2, select.2, statx.2, dl_iterate_phdr.3, dlinfo.3, dlopen.3, insque.3, newlocale.3, printf.3, pthread_setname_np.3, rpc.3, stdarg.3, strfmon.3, veth.4, proc.5, slabinfo.5, cgroup_namespaces.7, cgroups.7, cpuset.7, fanotify.7, inotify.7, mount_namespaces.7, sock_diag.7, user_namespaces.7, ld.so.8: Use \(aq instead of ' inside monospace fonts
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Use \(aq to get an unslanted single quote inside monospace code
blocks. Using a simple ' results in a slanted quote inside PDFs.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2020-09-24 09:32:31 +02:00
8eb90116f1
add_key.2, clock_getres.2, clone.2, futex.2, getdents.2, getpid.2, getrlimit.2, ioctl_ns.2, kcmp.2, keyctl.2, memfd_create.2, request_key.2, stat.2, timer_create.2, wait.2, clock_getcpuclockid.3, dl_iterate_phdr.3, getgrent_r.3, getpwent_r.3, getpwnam.3, posix_spawn.3, pthread_getcpuclockid.3, strcat.3, feature_test_macros.7, user_namespaces.7: Switch printf() casts to use [u]intmax_t + %ju / %jd
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Let's move to the 21st century. Instead of casting system data
types to long/long long/etc. in printf() calls, instead cast to
intmax_t or uintmax_t, the largest available signed/unsigned
integer types.
[mtk: rewrote commit message]
Signed-off-by: Alejandro Colomar <colomar.6.4.3@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2020-09-15 07:39:19 +02:00
af2d18b2c2
intro.1, clock_getres.2, clone.2, futex.2, ioctl_fat.2, mkdir.2, mknod.2, mmap.2, open.2, statx.2, umask.2, userfaultfd.2, glob.3, mkfifo.3, termios.3, wordexp.3, console_codes.4, sk98lin.4, vcs.4, dir_colors.5, hosts.equiv.5, proc.5, termcap.5, utmp.5, ascii.7, bpf-helpers.7, charsets.7, environ.7, glob.7, mailaddr.7, netlink.7, operator.7, suffixes.7, tcp.7, unicode.7, uri.7, zic.8: Use "\(ti" instead of "~"
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A naked tilde ("~") renders poorly in PDF. Instead use "\(ti",
which renders better in a PDF, and produces the same glyph
when rendering on a terminal.
Reported-by: Geoff Clare <gwc@opengroup.org>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2020-08-06 22:25:11 +02:00
0b06563436
clone.2: tfix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2020-06-26 11:17:44 +02:00
fec6cf90e9
man2/*: srcfix: fix warnings from "mandoc -Tlint"
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Remove superfluous paragraph macros.
Remove ".br" if it is before a line that starts with a space
character, as such lines automatically cause a break.
###
The output is unchanged, except two empty lines are added at the
bottom (before the footer line) in the output of "nroff" for the files
"alloc_hugepages.2" and "userfaultfd.2".
###
Examples of warnings from "mandoc -Tlint":
mandoc: access.2:283:2: WARNING: skipping paragraph macro: PP after SH
mandoc: adjtimex.2:185:2: WARNING: skipping paragraph macro: PP empty
mandoc: futex.2:728:2: WARNING: skipping paragraph macro: IP empty
mandoc: getsid.2:48:2: WARNING: skipping paragraph macro: br before text line with leading blank
mandoc: init_module.2:290:2: WARNING: skipping paragraph macro: PP after SS
mandoc: ioctl_fideduperange.2:27:2: WARNING: skipping paragraph macro: br after SH
Signed-off-by: Bjarni Ingi Gislason <bjarniig@rhi.hi.is>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2020-06-21 09:08:00 +02:00
77ca5b1d08
man2/*: srcfix: trim trailing space
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Remove superfluous space at the end of a processed input line.
There is no change in the output from "nroff" and "groff".
Signed-off-by: Bjarni Ingi Gislason <bjarniig@rhi.hi.is>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2020-06-12 21:38:24 +02:00
bffbb22fda
iconv.1, locale.1, memusage.1, memusagestat.1, pldd.1, sprof.1, _syscall.2, add_key.2, adjtimex.2, bind.2, bpf.2, chown.2, clone.2, close.2, copy_file_range.2, eventfd.2, fanotify_init.2, fanotify_mark.2, fork.2, fsync.2, futex.2, getdents.2, getrlimit.2, getxattr.2, io_cancel.2, io_destroy.2, io_getevents.2, io_setup.2, ioctl_fat.2, ioctl_getfsmap.2, ioctl_ns.2, ioctl_tty.2, ioctl_userfaultfd.2, kcmp.2, keyctl.2, listen.2, listxattr.2, mbind.2, membarrier.2, memfd_create.2, mkdir.2, move_pages.2, mremap.2, msync.2, nfsservctl.2, open.2, perf_event_open.2, pidfd_send_signal.2, pipe.2, pivot_root.2, pkey_alloc.2, process_vm_readv.2, ptrace.2, readlink.2, readv.2, recv.2, recvmmsg.2, rename.2, request_key.2, s390_runtime_instr.2, sched_setaffinity.2, seccomp.2, send.2, sendmmsg.2, sigaltstack.2, signalfd.2, socket.2, socketpair.2, splice.2, spu_create.2, spu_run.2, statfs.2, syscall.2, sysctl.2, sysfs.2, tee.2, timer_getoverrun.2, timer_settime.2, umount.2, userfaultfd.2, utimensat.2, wait4.2, INFINITY.3, __ppc_get_timebase.3, __setfpucw.3, abort.3, aio_cancel.3, aio_error.3, aio_read.3, aio_return.3, atexit.3, backtrace.3, basename.3, bsearch.3, bswap.3, cacos.3, cacosh.3, catan.3, catanh.3, cexp2.3, clock_getcpuclockid.3, clog2.3, cmsg.3, confstr.3, div.3, dl_iterate_phdr.3, dlerror.3, dlinfo.3, dlopen.3, dlsym.3, duplocale.3, encrypt.3, end.3, endian.3, envz_add.3, err.3, expm1.3, fdim.3, flockfile.3, fmtmsg.3, frexp.3, ftw.3, get_nprocs_conf.3, get_phys_pages.3, getaddrinfo_a.3, getauxval.3, getdate.3, getdtablesize.3, getgrent_r.3, getgrouplist.3, gethostbyname.3, getline.3, getnameinfo.3, getopt.3, getprotoent_r.3, getpwent_r.3, getpwnam.3, getservent_r.3, getsubopt.3, getutent.3, glob.3, gnu_get_libc_version.3, hsearch.3, if_nameindex.3, inet.3, inet_net_pton.3, inet_ntop.3, inet_pton.3, insque.3, killpg.3, makecontext.3, mallinfo.3, malloc.3, malloc_hook.3, malloc_info.3, mallopt.3, matherr.3, mbsnrtowcs.3, mbstowcs.3, mcheck.3, mempcpy.3, mq_getattr.3, mq_notify.3, mtrace.3, newlocale.3, nextafter.3, ntp_gettime.3, offsetof.3, open_memstream.3, pow.3, printf.3, pthread_attr_init.3, pthread_attr_setdetachstate.3, pthread_attr_setguardsize.3, pthread_attr_setinheritsched.3, pthread_attr_setschedparam.3, pthread_attr_setschedpolicy.3, pthread_attr_setstack.3, pthread_attr_setstacksize.3, pthread_cancel.3, pthread_cleanup_push.3, pthread_create.3, pthread_detach.3, pthread_getattr_default_np.3, pthread_getattr_np.3, pthread_getcpuclockid.3, pthread_join.3, pthread_mutex_consistent.3, pthread_mutexattr_setrobust.3, pthread_setaffinity_np.3, pthread_setcancelstate.3, pthread_setname_np.3, pthread_setschedparam.3, pthread_sigmask.3, pthread_spin_init.3, pthread_testcancel.3, pthread_tryjoin_np.3, ptsname.3, qsort.3, rand.3, random.3, remainder.3, rpmatch.3, rtime.3, rtnetlink.3, scalb.3, scalbln.3, scandir.3, sem_getvalue.3, sem_wait.3, setaliasent.3, setlogmask.3, sigwait.3, sincos.3, sockatmark.3, stdarg.3, stpcpy.3, strcat.3, strfmon.3, strptime.3, strtod.3, strtok.3, strtol.3, strtoul.3, strverscmp.3, tsearch.3, uselocale.3, wcstok.3, wcstombs.3, wordexp.3, y0.3, loop.4, vcs.4, veth.4, charmap.5, core.5, filesystems.5, gai.conf.5, hosts.5, hosts.equiv.5, locale.5, nss.5, repertoiremap.5, securetty.5, shells.5, ttytype.5, ascii.7, complex.7, cpuset.7, credentials.7, fanotify.7, hier.7, inotify.7, ip.7, mount_namespaces.7, mq_overview.7, netlink.7, network_namespaces.7, pid_namespaces.7, pkeys.7, rtld-audit.7, rtnetlink.7, sem_overview.7, signal-safety.7, sock_diag.7, spufs.7, standards.7, symlink.7, tcp.7, time_namespaces.7, unix.7, user_namespaces.7, xattr.7, ldconfig.8: tstamp
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2020-06-09 14:48:40 +02:00
a14af333d6
Various pages: retitle EXAMPLE section heading to EXAMPLES
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EXAMPLES appears to be the wider majority usage across various
projects' manual pages, and is also what is used in the POSIX
manual pages.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2020-05-31 10:45:27 +02:00
4fe3acd9e1
clone.2: Note a performance benefit of CLONE_INTO_CGROUP
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As noted in email by Christian Brauner:
I forgot to mention that spawning directly into a target
cgroup is also more efficient than moving it after creation.
The specific reason is mentioned in the commit message
[ef2c41cf38a], the write lock of the semaphore need not be
taken in contrast to when it is moved afterwards. That
implementation details is not that interesting but it might
be interesting to know that it provides performance benefits
in general.
Reported-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2020-05-19 21:41:08 +02:00
b3041511b8
clone.2: Restructure text on CLONE_INTO_CGROUP use cases
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2020-05-19 21:24:55 +02:00
17d860301a
clone.2: wfix
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Reported-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2020-05-19 21:16:53 +02:00
673d16daad
clone.2: Combine separate NOTES sections
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Somewhere along the way, this page ended up with two NOTES
sections. Combine them.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2020-05-19 15:45:11 +02:00
edc1b9fcd2
clone.2: Place CLONE_INTO_CGROUP text in correct alphabetical position
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2020-05-19 15:45:11 +02:00
6ba79da96e
clone.2: ERRORS: add error cases for CLONE_INTO_CGROUP
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These errors verified by experiment.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2020-05-19 15:45:11 +02:00
ed7c137731
clone.2: Substantial reworking of Christian Brauner's CLONE_INTO_CGROUP text
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2020-05-19 15:45:11 +02:00
f7d5e0822a
clone.2: Add kernel version numbers for clone_args fields
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2020-05-19 15:45:11 +02:00
5c216c0f7f
clone.2: Some rewording of Christian Brauner's CLONE_INTO_CGROUP patch
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2020-05-19 15:45:11 +02:00
b19679f754
clone.2: srcfix: semantic newlines
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2020-05-19 15:45:11 +02:00
aed3cc90e0
clone.2: Document the clone3() CLONE_INTO_CGROUP flag
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Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2020-05-19 15:45:09 +02:00
2a2b2a5dd7
clone.2: wfix
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2020-04-17 09:06:20 +02:00
d5d482ec7a
clone.2: tfix
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Fix clone3() syscall description for CLONE_PARENT_SETTID: kernel uses
cl_args.parent_tid instead of the specified cl_args.child_tid.
Signed-off-by: Krzysztof Małysa <varqox@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2020-03-12 09:14:11 +01:00
ba9ae75ddb
clone.2: Add old EINVAL error for AArch64
...
Reported-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2020-02-08 09:11:01 +01:00
b386cee344
clone.2: Note the kernel version that added the 'set_tid' feature
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2020-01-22 02:19:09 +01:00
27f14b447a
clone.2: Document CLONE_CLEAR_SIGHAND
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2020-01-22 02:09:17 +01:00
ee8bb310d8
clone.2: Minor tweaks to Adrian Reber's 'set_tid' patch
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2020-01-12 21:47:35 +01:00
09007c4b88
clone.2: srcfix: semantic line breaks
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2020-01-12 21:47:35 +01:00
bf031aaa54
clone.2: Add clone3() set_tid information
...
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Adrian Reber <areber@redhat.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2020-01-12 21:47:29 +01:00
bc03b11659
clone.2: tfix
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Added two missing parentheses
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Adrian Reber <areber@redhat.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2019-12-01 09:03:31 +01:00
97883faea2
clone.2: tfix
...
This surely meant to say clone3() and not clone(3).
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2019-11-21 12:24:24 +01:00
be479fdf02
clone.2: ERRORS: add EINVAL for use of CLONE_PARENT by an init process
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2019-11-21 10:52:14 +01:00
4269a6ab8b
clone.2: Some reworking of Christian Braunner's CLONE_PARENT init text
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2019-11-21 10:52:14 +01:00
d36198870c
clone.2: srcfix: rewrap source lines
...
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2019-11-21 10:52:14 +01:00
a17b9d28c3
clone.2: Mention that CLONE_PARENT is off-limits for inits
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The CLONE_PARENT flag cannot but used by init processes. Let's mention
this in the manpages to prevent surprises.
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2019-11-21 10:52:14 +01:00
a10c5a33de
clone.2: Note that CLONE_THREAD causes similar behavior to CLONE_PARENT
...
The introductory paragraphs note that "the calling process" is
normally synonymous with the "the parent process", except in the
case of CLONE_PARENT. The same is also true of CLONE_THREAD.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2019-11-21 10:52:14 +01:00
Alejandro Colomar