getksym.2 (2010 09)

getksym(2) getksym(2)

[ENAMETOOLONG]

modname is greater than MODMAXNAMELEN characters long, or symname is greater than

MAXSYMNMLEN characters long.

[ENOMATCH]

The symbol name given is not found, or the value given is not a currently valid address.

EXAMPLES

The following code sequence and call to

getksym()

obtains a symbol name (and an offset) given an

address.

#include <sys/types.h>

#include <sys/ksym.h>

#include <elf.h>

uint64_t value=0x12345678, info=0;

char symname[MAXSYMNMLEN];

/* name will be placed in symname, and offset in info */

if (getksym(symname, NULL, &value, &info) != 0) {

perror("getksym");

return(-1);

}

The following code sequence and call to getksym() obtains an address given a symbol name.

#include <sys/types.h>

#include <sys/ksym.h>

#include <elf.h>

uint64_t value=0, info=0;

/* The address will be placed in value */

if (getksym("bzero",NULL, &value, &info) != 0) {

perror("getksym");

return(-1);

}