Shared Library Management Routines

 

The shl_load Shared Library Management Routines

ENOSYM

Some symbol required by the shared library could not

 

be found.

EINVAL

The specified handle is invalid.

ENOMEM

memfunc failed to allocate the requested memory.

The shl_symbol Structure

The members of the shl_symbol structure are defined as follows:

name

Contains the name of a symbol.

type

Contains the symbol's type: TYPE_PROCEDURE,

 

TYPE_DATA, or TYPE_STORAGE. TYPE_STORAGE is a

 

data symbol used for C uninitialized global variables or

 

FORTRAN common blocks.

value

Contains the symbol's address. It is valid only if

 

EXPORT_SYMBOLS is specified without the NO_VALUES

 

modifier.

handle

Contains the handle of the shared library in which the

 

symbol is found, or NULL in the case of symbols defined

 

by shl_definesym. It is valid only if

 

EXPORT_SYMBOLS or INITIALIZERS were requested

 

without the NO_VALUES modifier. It is especially useful

 

when used with the GLOBAL_VALUES modifier, allowing

 

you to determine the library in which the most-visible

 

definition of a symbol occurs.

shl_getsymbols Example

“show_symbols — Display Shared Library Symbols” shows the source for a function named show_symbols that displays shared library symbols. The syntax of this routine is defined as:

int show_symbols(shl_t hndl, short type,

int flags)

hndl

The handle of the shared library whose symbols you

 

want to display.

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Kenwood HP 9000 manual Shlsymbol Structure, Shlgetsymbols Example

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