dld.so.5 (2010 09)

dld.so(5)

Itanium(R)-based Systems Only

dld.so(5)

prints the last error message recorded by the dynamic loader.

WARNINGS

The startup cost of the dynamic loader is signiﬁcant, even with deferred binding, and can cause severe

performance degradation in processes dominated by startup costs (such as simple ‘‘hello world’’ pro-

grams). In addition, position-independent code is usually slower than normal code, so performance of a

program may be adversely affected by the presence of PIC in shared libraries. However, the advantages

of decreased disk space usage and decreased memory requirements for executables should outweigh these

concerns in most cases.

There are rare cases where the behavior of a program differs when using shared libraries as opposed to

archive libraries. This happens primarily when relying on undocumented and unsupported features of

the compilers, assembler, and linker. See the +help

option to ld(1) or the HP-UX Linker and Libraries

User’s Guide for more details.

The library developer is entirely responsible for version control and must be thorough in identifying

incompatible changes to library interfaces. Otherwise, programs may malfunction unexpectedly with

later versions of the library. There is little an application user can do if version control is not handled

properly by the library developer. The application developer can usually resolve problems by modifying

the source code to use the new interfaces then recompiling and relinking against the new libraries.

By default, most warnings are not reported by the dynamic loader. If you wish to see all error messages,

set the environment variable

DLD_VERBOSE_ERR

to true.

AUTHOR

The

/usr/lib/hpux64/dld.so

and /usr/lib/hpux32/dld.so shared libraries were developed

by HP.

FILES

/etc/dld.sl.conf

list of shared libraries for lookup with setuid programs