DYNLD(3)DYNLD(3)NAMEdynld - load kernel module dynamically
SYNOPSIS
bind -a #L /dev
/dev/dynld
/dev/dynsyms
DESCRIPTION
Dynld serves a directory containing two files that control dynamic
loading of modules. When a module is loaded, dynld(10.2)), checks the
module's type against a type provided by the driver; the types must
match. Currently the only supported module type is that of a device
driver, Dev defined in dev(10.2)).
The control file dynld can only be opened by the host owner (see
eve(10.2)). It accepts the following commands:
load dev name file [ [ tag ] dep ... ]
Load a module for device driver name from the given file. The
optional tag is typically the MD5 or SHA1 hash of the file's
contents, to identify a particular version of the driver.
unload dev name [ file [ tag ] ]
Unload the device driver identified by the given name, option‐
ally qualified by the other parameters.
When read, dynld returns a list of the currently-loaded drivers, one
per line, most recent first. Each line contain: the module's device
type #x used in bind(1); its kernel address; its total text and data
size in bytes; its name when loaded; the name of the file from which it
was loaded; and its tag.
Dynsyms is a read-only text file that lists, one per line, the symbols
exported by the running kernel for use by modules it loads. Each line
contains: the symbol's kernel address, its type signature, and its
name.
SOURCE
/os/port/devdynld.c
SEE ALSO
dynld(10.2), a.out(10.6),
BUGS
Dynld does not currently check that a driver is no longer in use before
unloading it.
DYNLD(3)
