Creating and Using Libraries

Using Shared Libraries in 64-bit mode

 

+-->lib2a.sl

 

+-->lib2.sl-->lib2b.sl

 

lib1.sl--

>lib3.sl-->lib3a.sl-->lib3aa.sl

+-->lib3b.sl

+-->lib4.sl

In breadth-first searching, the load order is siblings before children:

lib1.sl->lib2.sl->lib3.sl->lib4.sl->lib2a.sl->lib2b.sl->lib3a.sl- >lib3b.sl->lib3aa.sl

In depth-first searching, the load order is children before siblings:

lib1.sl->lib2.sl->lib2a.sl->lib2b.sl->lib3.sl->lib3a.sl->lib3aa.s l->lib3b.sl->lib4.sl

Library Example: Using RPATH with Standard Mode Shared Library

In the following example, the linker uses the embedded RPATH at link time to find the dependent library. For compatibility mode shared libraries, embedded RPATHs are ignored.

ld -b bar.o -o libbar.sl

ld -b foo.o -o libfoo.sl -L. -lbar +b /var/tmp

#ld should look in /var/tmp to find libbar.sl since libfoo.sl

#has an embedded RPATH of

#/var/tmp

mv libbar.sl /var/tmp ld main.o -L. -lfoo -lc

#For compatibility mode dlls, embedded RPATHs are ignored ld -b bar.o -o libbar.sl

ld -b foo.o -o libfoo.sl +compat -L. -lbar +b /var/tmp

#ld won’t find libbar.sl since it does not look at embedded RPATHs mv libbar.sl /var/tmp

ld main.o -L. -lfoo +compat -lc

ld: Can’t find dependent library “libbar.sl” Fatal error.

Linking Libraries with +b pathlist

The following examples compare 32-bit and 64-bit mode linking with the ld +b pathlist option. The dynamic loader uses the directory specified by the -Loption at link time for dynamic library lookup at run time, if you do not use the +b option.

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Kenwood HP 9000 manual Linking Libraries with +b pathlist, 190

HP 9000 specifications

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