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in the library itself. |
the library can have any recognized |
binary format. |
.sh return value |
on success, zero is returned. |
on error, \-1 is returned, and |
.i errno |
is set to indicate the error. |
.sh errors |
in addition to all of the error codes returned by |
.br open (2) |
and |
.br mmap (2), |
the following may also be returned: |
.tp |
.b eacces |
the library specified by |
.i library |
does not have read or execute permission, or the caller does not have |
search permission for one of the directories in the path prefix. |
(see also |
.br path_resolution (7).) |
.tp |
.b enfile |
the system-wide limit on the total number of open files has been reached. |
.tp |
.b enoexec |
the file specified by |
.i library |
is not an executable of a known type; |
for example, it does not have the correct magic numbers. |
.sh conforming to |
.br uselib () |
is linux-specific, and should not be used in programs |
intended to be portable. |
.sh notes |
this obsolete system call is not supported by glibc. |
no declaration is provided in glibc headers, but, through a quirk of history, |
glibc versions before 2.23 did export an abi for this system call. |
therefore, in order to employ this system call, |
it was sufficient to manually declare the interface in your code; |
alternatively, you could invoke the system call using |
.br syscall (2). |
.pp |
in ancient libc versions (before glibc 2.0), |
.br uselib () |
was used to load |
the shared libraries with names found in an array of names |
in the binary. |
.\" .pp |
.\" .\" libc 4.3.1f - changelog 1993-03-02 |
.\" since libc 4.3.2, startup code tries to prefix these names |
.\" with "/usr/lib", "/lib" and "" before giving up. |
.\" .\" libc 4.3.4 - changelog 1993-04-21 |
.\" in libc 4.3.4 and later these names are looked for in the directories |
.\" found in |
.\" .br ld_library_path , |
.\" and if not found there, |
.\" prefixes "/usr/lib", "/lib" and "/" are tried. |
.\" .pp |
.\" from libc 4.4.4 on only the library "/lib/ld.so" is loaded, |
.\" so that this dynamic library can load the remaining libraries needed |
.\" (again using this call). |
.\" this is also the state of affairs in libc5. |
.\" .pp |
.\" glibc2 does not use this call. |
.pp |
since linux 3.15, |
.\" commit 69369a7003735d0d8ef22097e27a55a8bad9557a |
this system call is available only when the kernel is configured with the |
.b config_uselib |
option. |
.sh see also |
.br ar (1), |
.br gcc (1), |
.br ld (1), |
.br ldd (1), |
.br mmap (2), |
.br open (2), |
.br dlopen (3), |
.br capabilities (7), |
.br ld.so (8) |
.sh colophon |
this page is part of release 5.13 of the linux |
.i man-pages |
project. |
a description of the project, |
information about reporting bugs, |
and the latest version of this page, |
can be found at |
\%https://www.kernel.org/doc/man\-pages/. |
.so man3/pthread_mutexattr_setrobust.3 |
.\" copyright 2001 john levon <[email protected]> |
.\" based on mkstemp(3), copyright 1993 david metcalfe ([email protected]) |
.\" and gnu libc documentation |
.\" |
.\" %%%license_start(verbatim) |
.\" permission is granted to make and distribute verbatim copies of this |
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