Shared Library Management Routines

The dlopen Shared Library Management Routines

 

Description

 

dlerror returns a null-terminated character string (with no trailing

 

newline character) that describes the last error that occurred during

 

dynamic linking processing. If no dynamic linking errors have occurred

 

since the last invocation of dlerror, it returns NULL. Thus, invoking

 

dlerror a second time, immediately following a prior invocation, results

 

in NULL being returned.

 

The messages returned by dlerror may reside in a static buffer that is

NOTE

 

overwritten on each call to dlerror. Application code should not write to

 

this buffer. Programs wishing to preserve an error message should make

 

their own copies of that message.

 

 

Example

The following code sequence shows how to use dlerror to get diagnostic information.

void*handle;

/* Try to load a non-existing library */

handle = dlopen(“invalid.sl”, RTLD_GLOBAL RTLD_LAZY);

if (handle == NULL) { printf(“%s\n”, dlerror());

}

The dlsym Routine

Gets the address of a symbol in shared library.

Syntax

void *dlsym(void *handle, const char *name);

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Kenwood HP 9000 manual Dlsym Routine
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HP 9000 specifications

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