Solaris Application Programming, 1/e - Chapter 4 - Parent Directory

88 Chapter 4 Informational Tools
of a library. The older library API is still available, and the older applications
will link to these versions. The newer API is also present, and the newer applications
will link to this.
The pvs utility prints out information about the functions and versions of those
functions that a library exports, or the library versions that a library or executable
requires. By default, pvs will report both the definitions in the library and the
requirements of the library.
Example 4.57 shows pvs reporting the versions of the libraries that the ls executable
requires.
Example 4.57 Libraries Required by the ls Command
% pvs /bin/ls
libc.so.1 (SUNW_1.19, SUNWprivate_1.1);
The -r option, for displaying only the requirements of the file, can be used to
show that libc.so.1 requires libdl.so.1, as demonstrated in Example 4.58.
Example 4.58 Requirements of libc.so.1
% pvs -r /usr/lib/libc.so.1
libdl.so.1 (SUNW_1.4, SUNWprivate_1.1);
The -d option shows the versions defined in the library. Example 4.59 shows
part of the output of the versions defined in libc.so.1.
% pvs -d /usr/lib/libc.so.1
libc.so.1;
SUNW_1.21.2;
SUNW_1.21.1;
SUNW_1.21;
SUNW_1.20.4;
....
Example 4.59 Versions Defined in libc.so.1