1.\" $FreeBSD$ 2.\" 3.Dd October 22, 1993 4.Dt LDD 1 5.Os 6.Sh NAME 7.Nm ldd 8.Nd list dynamic object dependencies 9.Sh SYNOPSIS 10.Nm 11.Op Fl a 12.Op Fl v 13.Op Fl f Ar format 14.Ar program ... 15.Sh DESCRIPTION 16The 17.Nm 18utility displays all shared objects that are needed to run the given program or 19to load the given shared object. 20Contrary to 21.Xr nm 1 , 22the list includes 23.Dq indirect 24dependencies that are the result of needed shared objects which themselves 25depend on yet other shared objects. 26.Pp 27Zero, one or two 28.Fl f 29options may be given. 30The argument is a format string passed to 31.Xr rtld 1 32and allows customization of 33.Nm Ns 's 34output. 35See 36.Xr rtld 1 37for a list of recognized conversion characters. 38.Pp 39The 40.Fl a 41option displays the list of all objects that are needed by each loaded 42object. 43This option does not work with 44.Xr a.out 5 45binaries. 46.Pp 47The 48.Fl v 49option displays a verbose listing of the dynamic linking headers 50encoded in the executable. 51See the source code and include 52files for the definitive meaning of all the fields. 53.Sh SEE ALSO 54.Xr ld 1 , 55.Xr nm 1 , 56.Xr rtld 1 57.Sh HISTORY 58A 59.Nm 60utility first appeared in SunOS 4.0, it appeared in its current form in 61.Fx 1.1 . 62.Pp 63The 64.Fl v 65support is based on code written by 66.An John Polstra Aq jdp@polstra.com 67