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143 Commits

Author SHA1 Message Date
Michael Kerrisk b8efb41432 memusage.1, memusagestat.1, pldd.1, accept.2, adjtimex.2, arch_prctl.2, bdflush.2, bpf.2, close.2, epoll_ctl.2, epoll_wait.2, execve.2, execveat.2, fanotify_init.2, fanotify_mark.2, fcntl.2, fsync.2, get_kernel_syms.2, getdomainname.2, getgroups.2, gethostname.2, getrandom.2, getrlimit.2, getrusage.2, getsid.2, getunwind.2, io_getevents.2, ioctl_fat.2, kexec_load.2, killpg.2, listxattr.2, lseek.2, madvise.2, memfd_create.2, mknod.2, mlock.2, modify_ldt.2, msgctl.2, msgget.2, msgop.2, readlink.2, readv.2, reboot.2, recvmmsg.2, rename.2, request_key.2, restart_syscall.2, sched_setaffinity.2, sched_setattr.2, sched_setparam.2, seccomp.2, select_tut.2, semctl.2, semget.2, semop.2, set_thread_area.2, seteuid.2, setgid.2, setpgid.2, setresuid.2, setreuid.2, setsid.2, setuid.2, shmctl.2, shmget.2, shmop.2, sigaction.2, sigprocmask.2, stat.2, symlink.2, syscall.2, sysctl.2, unlink.2, bindresvport.3, byteorder.3, dlopen.3, endian.3, error.3, ffs.3, fmemopen.3, getcwd.3, getlogin.3, getnetent.3, getprotoent.3, getservent.3, getumask.3, getutent.3, glob.3, isalpha.3, lio_listio.3, login.3, mbsinit.3, mbstowcs.3, mbtowc.3, mkstemp.3, nextup.3, ntp_gettime.3, posix_fallocate.3, posix_spawn.3, pthread_join.3, pthread_rwlockattr_setkind_np.3, random.3, rcmd.3, realpath.3, resolver.3, setjmp.3, setnetgrent.3, sigvec.3, strerror.3, strverscmp.3, system.3, toupper.3, towlower.3, towupper.3, wcstombs.3, wordexp.3, cciss.4, loop.4, mouse.4, random.4, core.5, group.5, hosts.5, resolv.conf.5, ascii.7, environ.7, epoll.7, glob.7, ip.7, mq_overview.7, packet.7, pipe.7, raw.7, sched.7, signal.7, socket.7, symlink.7, ld.so.8, sln.8: tstamp 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-10-08 14:08:23 +02:00
Michael Kerrisk 348348b1d2 dlopen.3: dlmopen() is still broken in glibc 2.24 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-09-21 12:46:10 +02:00
Michael Kerrisk 82bd66b8b6 dlopen.3: Fix section ordering 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-08-08 05:54:15 +10:00
Michael Kerrisk 616c2730de remap_file_pages.2, sigaltstack.2, umask.2, wait4.2, basename.3, canonicalize_file_name.3, dlerror.3, dlopen.3, dlsym.3, sockatmark.3, strtok.3: srcfix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2016-06-20 14:00:37 +02:00
Michael Kerrisk 29b41e747f accept.2, acct.2, bind.2, clock_getres.2, connect.2, dup.2, epoll_create.2, eventfd.2, execve.2, fanotify_init.2, fcntl.2, fork.2, futex.2, get_robust_list.2, getcpu.2, getpeername.2, getrlimit.2, getsockname.2, getsockopt.2, gettimeofday.2, inotify_init.2, listen.2, membarrier.2, memfd_create.2, mlock.2, mmap.2, personality.2, pipe.2, poll.2, recv.2, send.2, sendfile.2, shmget.2, shutdown.2, sigreturn.2, socket.2, socketcall.2, socketpair.2, spu_create.2, swapon.2, time.2, timerfd_create.2, uselib.2, dlerror.3, dlopen.3, drand48.3, errno.3, fnmatch.3, getgrent.3, getgrnam.3, getlogin.3, getpwent.3, getpwnam.3, iconv.3, mq_open.3, opendir.3, random_r.3, sem_open.3, shm_open.3, tmpfile.3, tzset.3, random.4, fanotify.7, futex.7, vdso.7, ld.so.8: tstamp 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-12-29 13:48:42 +01:00
Michael Kerrisk 2e056718fc dlopen.3: Include a shell session showing build/run in EXAMPLE 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-12-05 10:46:28 +01:00
Michael Kerrisk 4373ccc072 dlopen.3: Change arguments to main() to "void" in EXAMPLE 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-12-05 10:46:22 +01:00
Michael Kerrisk b44cf4bcd4 dlopen.3: Correct the pathname used in EXAMPLE 
Quoting Florian:

    This does not work because libm.so can be a linker script:

           handle = dlopen("libm.so", RTLD_LAZY);

    The proper way to do this is to include <gnu/lib-names.h>
    and use LIBM_SO.

See https://bugzilla.kernel.org/show_bug.cgi?id=108821

Reported-by: Florian Weimer <fweimer@redhat.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-12-05 10:40:31 +01:00
Michael Kerrisk 1a08b97b56 dlopen.3: tfix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-12-02 14:03:49 +01:00
Michael Kerrisk 8dbd75b8ba dlopen.3: tfix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-11-17 10:36:03 +01:00
Michael Kerrisk 50008330de dlopen.3: Make it more explicit that LD_BIND_NOW overrides RTLD_LAZY 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-11-17 10:31:56 +01:00
Michael Kerrisk 460495ca58 ldd.1, sprof.1, accept.2, alarm.2, bind.2, chdir.2, clock_nanosleep.2, close.2, connect.2, dup.2, execve.2, fsync.2, getgid.2, getpeername.2, getsid.2, getsockname.2, getsockopt.2, getuid.2, io_getevents.2, kill.2, listen.2, lseek.2, mmap.2, msgctl.2, msgget.2, msgop.2, msync.2, nanosleep.2, nice.2, pause.2, pipe.2, rmdir.2, sched_get_priority_max.2, sched_rr_get_interval.2, sched_setparam.2, sched_setscheduler.2, sched_yield.2, select_tut.2, semctl.2, semop.2, setsid.2, shmctl.2, shmget.2, shmop.2, shutdown.2, sigaction.2, signal.2, socketpair.2, sync.2, timer_delete.2, timer_getoverrun.2, timer_settime.2, times.2, truncate.2, umask.2, MB_CUR_MAX.3, a64l.3, abs.3, assert.3, atexit.3, atof.3, atoi.3, basename.3, bsearch.3, btowc.3, byteorder.3, catgets.3, catopen.3, clock.3, clock_getcpuclockid.3, closedir.3, confstr.3, crypt.3, ctermid.3, difftime.3, div.3, dladdr.3, dlerror.3, dlinfo.3, dlopen.3, dlsym.3, drand48.3, encrypt.3, exit.3, fclose.3, ffs.3, fgetc.3, fgetwc.3, fgetws.3, flockfile.3, fmtmsg.3, fnmatch.3, fopen.3, fpathconf.3, fpclassify.3, fputwc.3, fputws.3, fseek.3, fseeko.3, ftok.3, fwide.3, getdate.3, getenv.3, getgrent.3, getgrnam.3, gethostid.3, getlogin.3, getnetent.3, getopt.3, getpwent.3, getpwnam.3, getsubopt.3, getutent.3, getwchar.3, grantpt.3, hsearch.3, iconv.3, iconv_close.3, iconv_open.3, if_nameindex.3, inet.3, inet_ntop.3, inet_pton.3, insque.3, isatty.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, lockf.3, longjmp.3, lsearch.3, malloc.3, mblen.3, mbrlen.3, mbrtowc.3, mbsinit.3, mbsrtowcs.3, mbstowcs.3, mbtowc.3, memccpy.3, memchr.3, memcmp.3, memmove.3, memset.3, mktemp.3, mq_close.3, mq_getattr.3, mq_receive.3, mq_send.3, mq_unlink.3, offsetof.3, popen.3, posix_memalign.3, posix_openpt.3, printf.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_setstack.3, pthread_attr_setstacksize.3, pthread_equal.3, pthread_exit.3, pthread_getcpuclockid.3, pthread_kill.3, pthread_self.3, pthread_setcancelstate.3, pthread_setconcurrency.3, pthread_setschedparam.3, pthread_setschedprio.3, pthread_sigmask.3, pthread_testcancel.3, ptsname.3, putenv.3, puts.3, putwchar.3, qsort.3, raise.3, random.3, readdir.3, regex.3, remove.3, rewinddir.3, seekdir.3, sem_destroy.3, sem_getvalue.3, sem_unlink.3, sem_wait.3, setenv.3, setjmp.3, setlocale.3, setlogmask.3, signbit.3, sigpause.3, sigset.3, sigsetops.3, sigwait.3, sleep.3, sockatmark.3, statvfs.3, strcat.3, strchr.3, strcmp.3, strcoll.3, strcpy.3, strlen.3, strpbrk.3, strptime.3, strspn.3, strstr.3, strtod.3, strtoimax.3, strtok.3, strtol.3, strtoul.3, strxfrm.3, swab.3, sysconf.3, system.3, tcgetpgrp.3, tcgetsid.3, telldir.3, tmpfile.3, towctrans.3, tsearch.3, ttyname.3, tzset.3, ungetwc.3, unlocked_stdio.3, unlockpt.3, wcrtomb.3, wcscat.3, wcschr.3, wcscmp.3, wcscpy.3, wcscspn.3, wcslen.3, wcsncat.3, wcsncmp.3, wcsncpy.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, fanotify.7, mq_overview.7, nptl.7, sem_overview.7, shm_overview.7, sigevent.7, symlink.7, ld.so.8: tstamp 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-08-08 18:21:22 +02:00
Michael Kerrisk 0fdbc11423 dlopen.3: Note a case where dlmopen() provides better isolation than RTLD_LOCAL 
Cowritten-by: Carlos O'Donell <carlos@redhat.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-08-08 17:35:45 +02:00
Michael Kerrisk 6fd1b6ebb7 dlopen.3: srcfix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-08-08 17:35:45 +02:00
Michael Kerrisk 438168a249 dlopen.3: wfix 
Reported-by: Carlos O'Donell <carlos@redhat.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-08-08 17:35:45 +02:00
Michael Kerrisk e8a1758ca3 dlopen.3: Reorganize conformance information for 'flags' 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-08-08 17:35:45 +02:00
Michael Kerrisk 6962fdf954 dlopen.3: srcfix: FIXME 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-08-08 17:35:45 +02:00
Michael Kerrisk b23510e5db dlopen.3: ATTRIBUTES: Note functions that are thread-safe 
After research, we think
* dlopen(),
* dlmopen(),
* dlclose()
are thread-safe. But, there are not markings of them in
glibc document.

[mtk: Split out patch for formerly single dlopen.3 page]

Signed-off-by: Zeng Linggang <zenglg.jy@cn.fujitsu.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-08-08 17:35:45 +02:00
Michael Kerrisk b198e0ae76 dlopen.3: Move atexit() discussion under "Initialization and Finalization" 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-08-08 17:35:44 +02:00
Michael Kerrisk 6ceba646b4 dlopen.3: Mention other functions in the dlopen API in the initial paragraph 
Doing so helps orient the reader.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-08-08 17:35:44 +02:00
Michael Kerrisk 747b2b0a98 dlopen.3: dlclose() will unload the object when all references have been released 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-08-08 17:35:44 +02:00
Michael Kerrisk 9ebcbe1377 dlopen.3: tfix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-08-08 17:35:44 +02:00
Michael Kerrisk 982eac0dba dlopen.3: Corrections and improvements after comments from Carlos O'Donell 
Reported-by: Carlos O'Donell <carlos@redhat.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-08-08 17:35:44 +02:00
Michael Kerrisk 374b34d32e dlopen.3: Remove dlerror() content that was migrated to dlerror(3) 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-08-08 17:35:44 +02:00
Michael Kerrisk b6779d1d8f dlopen.3: wfix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-08-08 17:35:44 +02:00
Michael Kerrisk e83ed17d21 dlopen.3: wfix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-08-08 17:35:44 +02:00
Michael Kerrisk 7766185cf8 dlopen.3: EXAMPLE: Remove mention of "-rdynamic" 
That option isn't needed for compiling and running this program.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-08-08 17:35:44 +02:00
Michael Kerrisk 896c71d0bd dlopen.3: Remove content migrated to new dlsym() page 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-08-08 17:35:44 +02:00
Michael Kerrisk c7c01315dc dlopen.3: Rework the discussion of initialization and finalization functions 
Deemphasize the obsolete _init/_fini and give more prominence
to gcc constructors/destructors.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-08-08 17:35:44 +02:00
Michael Kerrisk e8290357ce dlopen.3: Move discussion of _init() and _fini() to NOTES 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-08-08 17:35:44 +02:00
Michael Kerrisk 7e936c2917 dlopen.3: Remove reference to ld.so info page 
The command "info ld.so" simply shows the man page...

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-08-08 17:35:44 +02:00
Michael Kerrisk 65175b1d2a dlopen.3: Note some dlmopen() restrictions 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-08-08 17:35:44 +02:00
Michael Kerrisk fe854f153e dlopen.3: tfix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-08-08 17:35:44 +02:00
Michael Kerrisk 43151de329 ldd.1, sprof.1, execve.2, dlopen.3, ld.so.8: Prefer "shared object" over "shared library" 
The man pages variously use "shared library" or "shared object".
Try to more consistently use one term ("shared object"), while
also pointing out on a few pages that the terms are synonymous.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-08-08 17:35:44 +02:00
Michael Kerrisk 9c1697549f dlopen.3: Improvements after input from Carlos O'Donell 
Reported-by: Carlos O'Donell <carlos@redhat.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-08-08 17:35:43 +02:00
Michael Kerrisk efdd68a5b2 dlopen.3: Document dlmopen(3) 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-08-08 17:35:43 +02:00
Michael Kerrisk 46db2df163 dlopen.3: SEE ALSO: add dlinfo(3) 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-08-08 17:35:43 +02:00
Michael Kerrisk 6c46d3bc43 dlopen.3: SEE ALSO: add dladdr(3) 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-08-08 17:35:43 +02:00
Michael Kerrisk 3f4c09d0d3 dlopen.3: Integrate dlvsym() discussion into main page text 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-08-08 17:35:43 +02:00
Michael Kerrisk 705e06be7f dlopen.3: Minor fix: remind reader that _init() and _fini() are obsolete 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-08-08 17:35:43 +02:00
Michael Kerrisk 6445992d72 dlopen.3: Remove dladdr() content 
This content will be migrated to a new page.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-08-08 17:35:43 +02:00
Michael Kerrisk 8ac45f42e7 dlopen.3: tfix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-08-08 17:35:43 +02:00
Michael Kerrisk 0a78ab7b0a dlopen.3: Minor wording fix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-08-08 17:35:43 +02:00
Michael Kerrisk adb1cfab52 dlopen.3: Add VERSIONS section 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-08-08 17:35:43 +02:00
Michael Kerrisk 1e64c86bbf intro.1, ldd.1, clone.2, getgroups.2, getpid.2, getsockopt.2, ioctl_list.2, msgop.2, open.2, seccomp.2, setgid.2, setresuid.2, setreuid.2, setuid.2, sigaction.2, sigpending.2, sigprocmask.2, sigreturn.2, sigsuspend.2, sigwaitinfo.2, socket.2, syscall.2, syscalls.2, umount.2, clock.3, dlopen.3, fmemopen.3, fpathconf.3, fputwc.3, fputws.3, fseek.3, fseeko.3, gcvt.3, getline.3, getwchar.3, hypot.3, if_nameindex.3, initgroups.3, popen.3, resolver.3, strcoll.3, strdup.3, tzset.3, ulimit.3, wcstombs.3, wctob.3, xdr.3, console_codes.4, random.4, filesystems.5, host.conf.5, hosts.5, proc.5, resolv.conf.5, securetty.5, credentials.7, feature_test_macros.7, hier.7, ipv6.7, packet.7, pthreads.7, raw.7, signal.7, tcp.7, user_namespaces.7, ld.so.8, ldconfig.8: tstamp 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-03-29 22:30:09 +02:00
Michael Kerrisk b6fe25f722 dlopen.3: RTLD_NEXT works for symbols generally, not just functions 
The common use case is for functions, but RTLD_NEXT
also applies to variable symbols.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-03-22 08:24:07 +01:00
Michael Kerrisk 99175a5826 dlopen.3: Add some details for RTLD_DEFAULT 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-03-22 08:24:07 +01:00
Michael Kerrisk 4251757a3a dlopen.3: Add some details on RTLD_NEXT and preloading 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-03-22 08:24:07 +01:00
Michael Kerrisk fad3d64efc dlopen.3: Reformat text on RTLD_DEFAULT and RTLD_NEXT 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-03-22 08:24:02 +01:00
Michael Kerrisk cc2ddf2fd5 dlopen.3: dlclose() recursively closes dependent libraries 
Note that dlclose() recursively closes dependent libraries
that were loaded by dlopen()

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2015-03-15 09:53:02 +01:00