kvm_nlist -- retrieve symbol table names from a kernel image
Kernel Data Access Library (libkvm, -lkvm)
kvm_nlist(kvm_t *kd, struct nlist *nl);
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.
The kvm_nlist() function returns the number of invalid entries found. If
the kernel symbol table was unreadable, -1 is returned.
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),
FreeBSD 5.2.1 June 4, 1993 FreeBSD 5.2.1 [ Back ]