xref: /freebsd/usr.bin/lorder/lorder.1 (revision 5956d97f4b3204318ceb6aa9c77bd0bc6ea87a41)
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28.\"     @(#)lorder.1	8.2 (Berkeley) 4/28/95
29.\" $FreeBSD$
30.\"
31.Dd December 20, 2021
32.Dt LORDER 1
33.Os
34.Sh NAME
35.Nm lorder
36.Nd list dependencies for object files
37.Sh SYNOPSIS
38.Nm
39.Ar
40.Sh DESCRIPTION
41The
42.Nm
43utility uses
44.Xr nm 1
45to determine interdependencies in the list of object files
46and library archives
47specified on the command line.
48The
49.Nm
50utility outputs a list of file names where the first file contains a symbol
51which is defined by the second file.
52.Pp
53The output is normally used with
54.Xr tsort 1
55when a library is created to determine the optimum ordering of the
56object modules so that all references may be resolved in a single
57pass of the loader.
58.Pp
59When linking static binaries,
60.Nm
61and
62.Xr tsort 1
63can be used to properly order library archives automatically.
64.Pp
65The use of
66.Nm
67is not required by contemporary linkers, and
68.Nm
69may be removed from a future version of
70.Fx .
71.Sh ENVIRONMENT
72.Bl -tag -width indent
73.It Ev NM
74Path to the
75.Xr nm 1
76binary, defaults to
77.Dq Li nm .
78.It Ev NMFLAGS
79Flags to pass to
80.Xr nm 1 .
81.El
82.Sh EXAMPLES
83.Bd -literal -offset indent
84ar cr library.a `lorder ${OBJS} | tsort`
85cc -o foo ${OBJS} `lorder ${STATIC_LIBS} | tsort`
86.Ed
87.Sh SEE ALSO
88.Xr ar 1 ,
89.Xr ld 1 ,
90.Xr nm 1 ,
91.Xr ranlib 1 ,
92.Xr tsort 1
93.Sh HISTORY
94A
95.Nm
96utility appeared in
97.At v7 .
98