Shared Library Management Routines

Initializers for Shared Libraries

The ld command supports the +fini option to specify theterminator.

32-bit Mode Initializers

The 32-bit mode linker supports HP-UX 10.X style initializers.

This section contains the following topics:

Using HP-UX 10.X Style Initializers

“Declaring the Initializer with the +I Option”

“Initializer Syntax”

“Example: An Initializer for Each Library”

“Example: A Common Initializer for Multiple Libraries”

Using HP-UX 10.X Style Initializers

The initializer is called for libraries that are loaded implicitly at program startup, or explicitly with shl_load.

When calling initializers for implicitly loaded libraries, the dynamic loader waits until all libraries have been loaded before calling the initializers. It calls the initializers in depth-firstorder—that is, the initializers are called in the reverse order in which the libraries are searched for symbols. All initializers are called before the main program begins execution.

When calling the initializer for explicitly loaded libraries, the dynamic loader waits until any dependent libraries are loaded before calling the initializers. As with implicitly loaded libraries, initializers are called in depth-first order.

Note that initializers can be disabled for explicitly loaded libraries with the BIND_NOSTART flag to shl_load. For more information, see “The shl_load and cxxshl_load Routines”.

Declaring the Initializer with the +I Option

To declare the name of the initializer, use the +I linker option when creating the shared library. The syntax of the +I option is:

+I initializer

where initializer is the initializer's name.

Multiple initializers may be called by repeating the +I initializer option.

Chapter 6

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Kenwood HP 9000 Bit Mode Initializers, Using HP-UX 10.X Style Initializers, Declaring the Initializer with the +I Option

HP 9000 specifications

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