Creating and Using Libraries

What are Shared Libraries?

Default Behavior When Searching for Libraries at Run Time

By default, if the dynamic loader cannot find a shared library from the list, it generates a run-time error and the program aborts. For example, in 32-bit mode, suppose that during development, a program is linked with the shared library liblocal.sl in your current working directory (say, /users/hyperturbo):

$ ld /opt/langtools/lib/crt0.o prog.o -lc liblocal.sl

In 32-bit mode, the linker records the path name of liblocal.sl in the a.out file as /users/hyperturbo/liblocal.sl. When shipping this application to users, you must ensure that (1) they have a copy of liblocal.sl on their system, and (2) it is in the same location as it was when you linked the final application. Otherwise, when the users of your application run it, the dynamic loader will look for /users/hyperturbo/liblocal.sl, fail to find it, and the program will abort.

In 64-bit mode, the linker records ./liblocal.sl.

This is more of a concern with non-standard libraries—that is, libraries not found in /usr/lib or /usr/lib/pa20_64. There is little chance of the standard libraries not being in these directories.

Caution on Using Dynamic Library Searching

If different versions of a library exist on your system, be aware that the dynamic loader may get the wrong version of the library when dynamic library searching is enabled with SHLIB_PATH or +b. For instance, you may want a program to use the PA1.1 libraries found in the /usr/lib/pa1.1 directory; but through a combination of SHLIB_PATH settings and +b options, the dynamic loader ends up loading versions found in /usr/lib instead. If this happens, make sure that SHLIB_PATH and +b are set to avoid such conflicts.

Chapter 5

127

Page 127
Image 127
Kenwood HP 9000 manual Default Behavior When Searching for Libraries at Run Time

HP 9000 specifications

The Kenwood HP 9000 is a cutting-edge home appliance designed for culinary enthusiasts seeking to elevate their cooking experience. This powerful kitchen machine stands out for its multi-functionality, combining the roles of a food processor, blender, and mixer into one sleek unit.

One of the flagship features of the Kenwood HP 9000 is its robust motor, which delivers exceptional performance across various tasks. With a powerful motor that operates at multiple speeds, users can tackle everything from kneading dough to finely chopping vegetables with ease. The variable speed control allows for precision, ensuring that every ingredient is processed to perfection according to individual preferences.

The HP 9000 comes equipped with a variety of attachments that enhance its versatility. Among these are a stainless-steel mixing bowl, a dough hook, a whisk, and multiple cutting blades. This extensive array of accessories means that users can whip up delightful pastries, create homemade pasta, or prepare smoothies with minimal hassle. Each attachment is designed for easy attachment and removal, making the transition between tasks seamless and efficient.

Another key characteristic of the Kenwood HP 9000 is its advanced safety features. The design incorporates mechanisms that prevent the machine from operating unless all components are securely in place. This not only gives users peace of mind while cooking but also ensures longevity for the appliance, reducing the risk of wear and tear over time.

In terms of design, the HP 9000 is both modern and aesthetically pleasing. Its ergonomic shape and compact size make it easy to store and use in various kitchen settings, while the high-quality materials used in its construction guarantee durability and longevity. The user interface is intuitive, with clearly labeled buttons that facilitate operation, ensuring that even novice cooks can navigate the machine effortlessly.

Additionally, the Kenwood HP 9000 features innovative technologies, such as an integrated digital timer and a pulse function for added control during food preparation. These features enhance cooking precision, allowing users to achieve consistent results every time.

In summary, the Kenwood HP 9000 is an exceptional kitchen appliance that combines power, versatility, and safety. With its advanced features and user-friendly design, it is an ideal choice for anyone looking to simplify their cooking process while achieving professional-level results. Whether you're whipping up a quick meal or tackling an elaborate recipe, the HP 9000 is a reliable companion that will inspire culinary creativity.