mirror of https://github.com/mkerrisk/man-pages
lookup_dcookie.2: Use syscall(SYS_...); for system calls without a wrapper
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com> Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
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lookup_dcookie \- return a directory entry's path
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.SH SYNOPSIS
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.nf
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.BI "int lookup_dcookie(uint64_t " cookie ", char *" buffer ", size_t " len );
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.BR "#include <sys/syscall.h>" " /* Definition of " SYS_* " constants */"
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.B #include <unistd.h>
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.PP
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.BI "int syscall(SYS_lookup_dcookie, uint64_t " cookie ", char *" buffer ,
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.BI " size_t " len );
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.fi
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.PP
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.IR Note :
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There is no glibc wrapper for this system call; see NOTES.
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glibc provides no wrapper for
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.BR lookup_dcookie (),
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necessitating the use of
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.BR syscall (2).
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.SH DESCRIPTION
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Look up the full path of the directory entry specified by the value
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.IR cookie .
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@ -92,8 +99,5 @@ It relies on a kernel driver to register cookies for directory entries.
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.PP
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The path returned may be suffixed by the string " (deleted)" if the directory
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entry has been removed.
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.PP
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Glibc does not provide a wrapper for this system call; call it using
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.BR syscall (2).
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.SH SEE ALSO
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.BR oprofile (1)
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