Library /sys$common/syshlp/pca$help.hlb SET, DATAFILE, Qualifiers, /SHAREABLE  *Conan The Librarian (sorry for the slow response - running on an old VAX)

       /SHAREABLE=(img-name)

    Specifies that you want to measure the performance of a shareable
    image and that you have created a Debug Symbol Table that fits
    that shareable image. The img-name parameter specifies the
    shareable image to measure.