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lorder(1) [v7 man page]

LORDER(1)						      General Commands Manual							 LORDER(1)

lorder - find ordering relation for an object library SYNOPSIS
lorder file ... DESCRIPTION
The input is one or more object or library archive (see ar(1)) files. The standard output is a list of pairs of object file names, meaning that the first file of the pair refers to external identifiers defined in the second. The output may be processed by tsort(1) to find an ordering of a library suitable for one-pass access by ld(1). This brash one-liner intends to build a new library from existing `.o' files. ar cr library `lorder *.o | tsort` FILES
*symref, *symdef nm(1), sed(1), sort(1), join(1) SEE ALSO
tsort(1), ld(1), ar(1) BUGS
The names of object files, in and out of libraries, must end with `.o'; nonsense results otherwise. LORDER(1)

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lorder(1)						      General Commands Manual							 lorder(1)

lorder - Finds the best order for member files in an object library SYNOPSIS
lorder file... DESCRIPTION
The lorder command is essentially obsolete. Use the following command in its place: % ar -ts file.a The lorder command reads one or more object or library archive files, looks for external references, and writes a list of paired filenames to standard output. The first of each pair of files contains references to identifiers that are defined in the second file. You can send this list to the tsort command to find an ordering of a library member file suitable for 1-pass access by ld. If object files do not end with lorder overlooks them and attributes their global symbols and references to some other file. EXAMPLES
To create a subroutine library, enter: lorder charin.o scanfld.o scan.o scanln.o | tsort | xargs ar qv libsubs.a (Enter this command entirely on one line, not on two lines as shown above.) This creates a subroutine library named libsubs.a that contains charin.o, scanfld.o, scan.o, and scanln.o. The ordering of the object mod- ules in the library is important. The lorder and tsort commands together add the subroutines to the library in the proper order. Suppose that scan.o calls entry points in scanfld.o and scanln.o. scanfld.o also calls entry points in charin.o. First, the lorder command creates a list of pairs that shows these dependencies: charin.o charin.o scanfld.o scanfld.o scan.o scan.o scanln.o scanln.o scanfld.o charin.o scanln.o charin.o scan.o scanfld.o This list is piped to the tsort command, which converts the list into the ordering that is needed: scan.o scanfld.o scanln.o charin.o Note that each module precedes the module it calls. charin.o, which does not call another module, is last. The second list is then piped to xargs, which constructs and runs the following ar command: ar qv libsubs.a scan.o scanfld.o scanln.o charin.o This ar command creates the properly ordered library. FILES
Temporary files SEE ALSO
Commands: ar(1), as(1), cc(1), ld(1), make(1), nm(1), size(1), strip(1), tsort(1), xargs(1) Files: a.out(4), ar(4) lorder(1)
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