NAME
getkernelsyms - retrieve exported kernel and module symbols SYNOPSIS
#include
int getkernelsyms(struct kernelsym *table); DESCRIPTION Note: This system call is present only in kernels before Linux 2.6. If table is NULL, getkernelsyms() returns the number of symbols available for query. Otherwise it fills in a table of structures: struct kernelsym { unsigned long value; char name[60]; }; The symbols are interspersed with magic symbols of the form #module- name with the kernel having an empty name. The value associated with a symbol of this form is the address at which the module is loaded. The symbols exported from each module follow their magic module tag and the modules are returned in the reverse of the order in which they were loaded. RETURN VALUE On success, returns the number of symbols copied to table. On error,
-1 is returned and errno is set appropriately. ERRORS There is only one possible error return: ENOSYS getkernelsyms() is not supported in this version of the ker‐ nel. VERSIONS This system call is present on Linux only up until kernel 2.4; it was removed in Linux 2.6. CONFORMING TO
getkernelsyms() is Linux-specific. BUGS There is no way to indicate the size of the buffer allocated for table. If symbols have been added to the kernel since the program queried for the symbol table size, memory will be corrupted. The length of exported symbol names is limited to 59 characters. Because of these limitations, this system call is deprecated in favor of querymodule(2) (which is itself nowadays deprecated in favor of other interfaces described on its manual page). SEE ALSO createmodule(2), deletemodule(2), initmodule(2), querymodule(2) COLOPHON
This page is part of release 3.53 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
Linux 2012-10-18 GETKERNELSYMS(2)