c1312289dd
a parameter and dtrt. Also, make boot-conf always unload first. There wasn't really any point in not doing this, as the kernel _has_ to be loaded before any other modules. Tested by: dwhite
347 lines
8.5 KiB
Forth
347 lines
8.5 KiB
Forth
\ Copyright (c) 1999 Daniel C. Sobral <dcs@freebsd.org>
|
|
\ All rights reserved.
|
|
\
|
|
\ Redistribution and use in source and binary forms, with or without
|
|
\ modification, are permitted provided that the following conditions
|
|
\ are met:
|
|
\ 1. Redistributions of source code must retain the above copyright
|
|
\ notice, this list of conditions and the following disclaimer.
|
|
\ 2. Redistributions in binary form must reproduce the above copyright
|
|
\ notice, this list of conditions and the following disclaimer in the
|
|
\ documentation and/or other materials provided with the distribution.
|
|
\
|
|
\ THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
\ ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
\ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
\ ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
\ FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
\ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
\ OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
\ HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
\ LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
\ OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
\ SUCH DAMAGE.
|
|
\
|
|
\ $FreeBSD$
|
|
|
|
include /boot/support.4th
|
|
|
|
only forth definitions also support-functions
|
|
|
|
\ ***** boot-conf
|
|
\
|
|
\ Prepares to boot as specified by loaded configuration files.
|
|
|
|
also support-functions definitions
|
|
|
|
: bootpath s" /boot/" ;
|
|
: modulepath s" module_path" ;
|
|
: saveenv ( addr len | 0 -1 -- addr' len | 0 -1 )
|
|
dup -1 = if exit then
|
|
dup allocate abort" Out of memory"
|
|
swap 2dup 2>r
|
|
move
|
|
2r>
|
|
;
|
|
: freeenv ( addr len | 0 -1 )
|
|
-1 = if drop else free abort" Freeing error" then
|
|
;
|
|
: restoreenv ( addr len | 0 -1 -- )
|
|
dup -1 = if ( it wasn't set )
|
|
2drop
|
|
modulepath unsetenv
|
|
else
|
|
over >r
|
|
modulepath setenv
|
|
r> free abort" Freeing error"
|
|
then
|
|
;
|
|
|
|
only forth also support-functions also builtins definitions
|
|
|
|
: boot-conf ( args 1 | 0 "args" -- flag )
|
|
0 1 unload drop
|
|
|
|
0= if ( interpreted )
|
|
\ Get next word on the command line
|
|
bl word count
|
|
?dup 0= if ( there wasn't anything )
|
|
drop 0
|
|
else ( put in the number of strings )
|
|
1
|
|
then
|
|
then ( interpreted )
|
|
|
|
if ( there are arguments )
|
|
\ Try to load the kernel
|
|
s" kernel_options" getenv dup -1 = if drop 2dup 1 else 2over 2 then
|
|
|
|
1 load if ( load command failed )
|
|
\ Remove garbage from the stack
|
|
|
|
\ Set the environment variable module_path, and try loading
|
|
\ the kernel again.
|
|
|
|
\ First, save module_path value
|
|
modulepath getenv saveenv dup -1 = if 0 swap then 2>r
|
|
|
|
\ Sets the new value
|
|
2dup modulepath setenv
|
|
|
|
\ Try to load the kernel
|
|
s" load ${kernel} ${kernel_options}" ['] evaluate catch
|
|
if ( load failed yet again )
|
|
\ Remove garbage from the stack
|
|
2drop
|
|
|
|
\ Try prepending /boot/
|
|
bootpath 2over nip over + allocate
|
|
if ( out of memory )
|
|
2drop 2drop
|
|
2r> restoreenv
|
|
100 exit
|
|
then
|
|
|
|
0 2swap strcat 2swap strcat
|
|
2dup modulepath setenv
|
|
|
|
drop free if ( freeing memory error )
|
|
2drop
|
|
2r> restoreenv
|
|
100 exit
|
|
then
|
|
|
|
\ Now, once more, try to load the kernel
|
|
s" load ${kernel} ${kernel_options}" ['] evaluate catch
|
|
if ( failed once more )
|
|
2drop
|
|
2r> restoreenv
|
|
100 exit
|
|
then
|
|
|
|
else ( we found the kernel on the path passed )
|
|
|
|
2drop ( discard command line arguments )
|
|
|
|
then ( could not load kernel from directory passed )
|
|
|
|
\ Load the remaining modules, if the kernel was loaded at all
|
|
['] load_modules catch if 2r> restoreenv 100 exit then
|
|
|
|
\ Call autoboot to perform the booting
|
|
0 1 autoboot
|
|
|
|
\ Keep new module_path
|
|
2r> freeenv
|
|
|
|
exit
|
|
then ( could not load kernel with name passed )
|
|
|
|
2drop ( discard command line arguments )
|
|
|
|
else ( try just a straight-forward kernel load )
|
|
s" load ${kernel} ${kernel_options}" ['] evaluate catch
|
|
if ( kernel load failed ) 2drop 100 exit then
|
|
|
|
then ( there are command line arguments )
|
|
|
|
\ Load the remaining modules, if the kernel was loaded at all
|
|
['] load_modules catch if 100 exit then
|
|
|
|
\ Call autoboot to perform the booting
|
|
0 1 autoboot
|
|
;
|
|
|
|
also forth definitions
|
|
builtin: boot-conf
|
|
only forth definitions also support-functions
|
|
|
|
\ ***** check-password
|
|
\
|
|
\ If a password was defined, execute autoboot and ask for
|
|
\ password if autoboot returns.
|
|
|
|
: check-password
|
|
password .addr @ if
|
|
0 autoboot
|
|
false >r
|
|
begin
|
|
bell emit bell emit
|
|
." Password: "
|
|
password .len @ read-password
|
|
dup password .len @ = if
|
|
2dup password .addr @ password .len @
|
|
compare 0= if r> drop true >r then
|
|
then
|
|
drop free drop
|
|
r@
|
|
until
|
|
r> drop
|
|
then
|
|
;
|
|
|
|
\ ***** start
|
|
\
|
|
\ Initializes support.4th global variables, sets loader_conf_files,
|
|
\ process conf files, and, if any one such file was succesfully
|
|
\ read to the end, load kernel and modules.
|
|
|
|
: start ( -- ) ( throws: abort & user-defined )
|
|
s" /boot/defaults/loader.conf" initialize
|
|
include_conf_files
|
|
\ Will *NOT* try to load kernel and modules if no configuration file
|
|
\ was succesfully loaded!
|
|
any_conf_read? if
|
|
load_kernel
|
|
load_modules
|
|
then
|
|
;
|
|
|
|
\ ***** initialize
|
|
\
|
|
\ Overrides support.4th initialization word with one that does
|
|
\ everything start one does, short of loading the kernel and
|
|
\ modules. Returns a flag
|
|
|
|
: initialize ( -- flag )
|
|
s" /boot/defaults/loader.conf" initialize
|
|
include_conf_files
|
|
any_conf_read?
|
|
;
|
|
|
|
\ ***** read-conf
|
|
\
|
|
\ Read a configuration file, whose name was specified on the command
|
|
\ line, if interpreted, or given on the stack, if compiled in.
|
|
|
|
: (read-conf) ( addr len -- )
|
|
conf_files .addr @ ?dup if free abort" Fatal error freeing memory" then
|
|
strdup conf_files .len ! conf_files .addr !
|
|
include_conf_files \ Will recurse on new loader_conf_files definitions
|
|
;
|
|
|
|
: read-conf ( <filename> | addr len -- ) ( throws: abort & user-defined )
|
|
state @ if
|
|
\ Compiling
|
|
postpone (read-conf)
|
|
else
|
|
\ Interpreting
|
|
bl parse (read-conf)
|
|
then
|
|
; immediate
|
|
|
|
\ ***** enable-module
|
|
\
|
|
\ Turn a module loading on.
|
|
|
|
: enable-module ( <module> -- )
|
|
bl parse module_options @ >r
|
|
begin
|
|
r@
|
|
while
|
|
2dup
|
|
r@ module.name dup .addr @ swap .len @
|
|
compare 0= if
|
|
2drop
|
|
r@ module.name dup .addr @ swap .len @ type
|
|
true r> module.flag !
|
|
." will be loaded." cr
|
|
exit
|
|
then
|
|
r> module.next @ >r
|
|
repeat
|
|
r> drop
|
|
type ." wasn't found." cr
|
|
;
|
|
|
|
\ ***** disable-module
|
|
\
|
|
\ Turn a module loading off.
|
|
|
|
: disable-module ( <module> -- )
|
|
bl parse module_options @ >r
|
|
begin
|
|
r@
|
|
while
|
|
2dup
|
|
r@ module.name dup .addr @ swap .len @
|
|
compare 0= if
|
|
2drop
|
|
r@ module.name dup .addr @ swap .len @ type
|
|
false r> module.flag !
|
|
." will not be loaded." cr
|
|
exit
|
|
then
|
|
r> module.next @ >r
|
|
repeat
|
|
r> drop
|
|
type ." wasn't found." cr
|
|
;
|
|
|
|
\ ***** toggle-module
|
|
\
|
|
\ Turn a module loading on/off.
|
|
|
|
: toggle-module ( <module> -- )
|
|
bl parse module_options @ >r
|
|
begin
|
|
r@
|
|
while
|
|
2dup
|
|
r@ module.name dup .addr @ swap .len @
|
|
compare 0= if
|
|
2drop
|
|
r@ module.name dup .addr @ swap .len @ type
|
|
r@ module.flag @ 0= dup r> module.flag !
|
|
if
|
|
." will be loaded." cr
|
|
else
|
|
." will not be loaded." cr
|
|
then
|
|
exit
|
|
then
|
|
r> module.next @ >r
|
|
repeat
|
|
r> drop
|
|
type ." wasn't found." cr
|
|
;
|
|
|
|
\ ***** show-module
|
|
\
|
|
\ Show loading information about a module.
|
|
|
|
: show-module ( <module> -- )
|
|
bl parse module_options @ >r
|
|
begin
|
|
r@
|
|
while
|
|
2dup
|
|
r@ module.name dup .addr @ swap .len @
|
|
compare 0= if
|
|
2drop
|
|
." Name: " r@ module.name dup .addr @ swap .len @ type cr
|
|
." Path: " r@ module.loadname dup .addr @ swap .len @ type cr
|
|
." Type: " r@ module.type dup .addr @ swap .len @ type cr
|
|
." Flags: " r@ module.args dup .addr @ swap .len @ type cr
|
|
." Before load: " r@ module.beforeload dup .addr @ swap .len @ type cr
|
|
." After load: " r@ module.afterload dup .addr @ swap .len @ type cr
|
|
." Error: " r@ module.loaderror dup .addr @ swap .len @ type cr
|
|
." Status: " r> module.flag @ if ." Load" else ." Don't load" then cr
|
|
exit
|
|
then
|
|
r> module.next @ >r
|
|
repeat
|
|
r> drop
|
|
type ." wasn't found." cr
|
|
;
|
|
|
|
\ Words to be used inside configuration files
|
|
|
|
: retry false ; \ For use in load error commands
|
|
: ignore true ; \ For use in load error commands
|
|
|
|
\ Return to strict forth vocabulary
|
|
|
|
only forth also
|
|
|