NLIST(3) BSD Library Functions Manual NLIST(3)NAME
nlist -- retrieve symbol table name list from an executable file
LIBRARY
Utility functions from BSD systems (libbsd, -lbsd)
SYNOPSIS
#include <bsd/nlist.h>
int
nlist(const char *filename, struct nlist *nl);
DESCRIPTION
The nlist() function retrieves name list entries from the symbol table of an executable file (see a.out(5)). The argument nl is set to ref-
erence the beginning of the list. The list is preened of binary and invalid data; if an entry in the name list is valid, the n_type and
n_value for the entry are copied into the list referenced by nl. No other data is copied. The last entry in the list is always NULL.
RETURN VALUES
The number of invalid entries is returned if successful; otherwise, if the file filename does not exist or is not executable, the returned
value is -1.
SEE ALSO a.out(5)HISTORY
A nlist() function appeared in Version 6 AT&T UNIX.
BSD April 19, 1994 BSD
Check Out this Related Man Page
KVM_NLIST(3) BSD Library Functions Manual KVM_NLIST(3)NAME
kvm_nlist -- retrieve symbol table names from a kernel image
LIBRARY
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 is NULL (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)BSD June 4, 1993 BSD
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