table of contents
KVM_NLIST(3) | Library Functions Manual | KVM_NLIST(3) |
NAME¶
kvm_nlist — retrieve symbol table names from a kernel imageLIBRARY¶
Kernel Data Access Library (libkvm, -lkvm)SYNOPSIS¶
#include <kvm.h>#include <nlist.h> int
kvm_nlist(kvm_t *kd, struct nlist *nl);
DESCRIPTION¶
The kvm_nlist() function retrieves the symbol table entries indicated by the name list argument nl. This argument points to an array of nlist structures, terminated by an entry whose n_name field isNULL
(see nlist(3)). Each
symbol is looked up using the n_name field, and if found, the corresponding
n_type and n_value fields are filled in. These fields are set to 0 if the
symbol is not found.
The kldsym(2) system call is used to locate the symbol. This
is a less than perfect emulation of the nlist values but has the advantage of
being aware of kernel modules and is reasonably fast.
RETURN VALUES¶
The kvm_nlist() function returns the number of invalid entries found. If the kernel symbol table was unreadable, -1 is returned.SEE ALSO¶
kldsym(2), kvm(3), kvm_close(3), kvm_getargv(3), kvm_getenvv(3), kvm_geterr(3), kvm_getprocs(3), kvm_open(3), kvm_openfiles(3), kvm_read(3), kvm_write(3)June 4, 1993 | Debian |