If
table
is NULL,
get_kernel_syms()
returns the number of symbols available for query.
Otherwise it fills in a table of structures:
struct kernel_sym {
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
get_kernel_syms()
is not supported in this version of the kernel.
VERSIONS
This system call is only present on Linux up until kernel 2.4;
it was removed in Linux 2.6.
CONFORMING TO
get_kernel_syms()
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
query_module(2)
(which is itself nowadays deprecated
in favor of other interfaces described on its manual page).
This page is part of release 3.14 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/.
