Isolating a Group
The default assignment of world symbol
search scope to the objects obtained by a
dlopen
(3C) can be reduced to group by
augmenting the mode argument with the
RTLD_GROUP
flag. Under this
mode, any objects obtained through a
dlopen
(3C) will only be allowed to
look for symbols within their own group.
Using the link-editor's
-B group
option, you can
assign the group symbol search scope to objects when
they are built.
Note:
If a member of a group defines a group search requirement, and is referenced by another group that defines a world search requirement, then the object's search requirement becomes a concatenation of both group and world. This promotion of attributes remains even if the world group reference is later removed.