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Add BootForth hooks; if BOOT_FORTH is defined, pass every line read

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to the Forth interpreter.  Instantiate all of our inbuilt commands
as Forth words, and handle them being called from there.

Add my copyright to the bcache module (oops).
This commit is contained in:
Mike Smith 1998-11-04 00:29:01 +00:00
parent 25c3957dfd
commit c7db92c026
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=40875
4 changed files with 155 additions and 5 deletions
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7
sys/boot/common/Makefile.inc
View file

@ -1,4 +1,4 @@
# $Id: Makefile.inc,v 1.6 1998/09/30 19:38:26 peter Exp $
# $Id: Makefile.inc,v 1.7 1998/11/02 23:28:10 msmith Exp $
SRCS+= bcache.c boot.c commands.c console.c devopen.c interp.c
SRCS+= interp_backslash.c interp_parse.c load_aout.c load_elf.c ls.c misc.c
@ -11,3 +11,8 @@ SRCS+= isapnp.c
.if HAVE_PNP
SRCS+= pnp.c
.endif
# Forth interpreter
.if BOOT_FORTH
SRCS+= interp_forth.c
.endif

28
sys/boot/common/bcache.c
View file

@ -1,5 +1,29 @@
/*
* mjs copyright
/*-
* Copyright (c) 1998 Michael Smith <msmith@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.
*
* $Id$
*/
/*

12
sys/boot/common/interp.c
View file

@ -23,7 +23,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: interp.c,v 1.6 1998/10/09 07:09:22 msmith Exp $
* $Id: interp.c,v 1.7 1998/10/21 20:07:04 msmith Exp $
*/
/*
* Simple commandline interpreter, toplevel and misc.
@ -42,7 +42,7 @@ static void prompt(void);
/*
* Perform the command
*/
static int
int
perform(int argc, char *argv[])
{
int i, result;
@ -81,6 +81,10 @@ interact(void)
int argc;
char **argv;
#ifdef BOOT_FORTH
bf_init();
#endif
/*
* Read our default configuration
*/
@ -102,6 +106,9 @@ interact(void)
input[0] = '\0';
prompt();
ngets(input, sizeof(input));
#ifdef BOOT_FORTH
bf_run(input);
#else
if (!parse(&argc, &argv, input)) {
if (perform(argc, argv))
printf("%s: %s\n", argv[0], command_errmsg);
@ -109,6 +116,7 @@ interact(void)
} else {
printf("parse error\n");
}
#endif
}
}

113
sys/boot/common/interp_forth.c Normal file
View file

@ -0,0 +1,113 @@
/*
* Copyright (c) 1998 Michael Smith <msmith@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.
*
* $Id$
*/
#include <stand.h>
#include "bootstrap.h"
#include "ficl.h"
/*
* BootForth Interface to Ficl Forth interpreter.
*/
static FICL_VM *bf_vm;
/*
* Shim for taking commands from BF and passing them out to 'standard'
* argv/argc command functions.
*/
static void
bf_command(FICL_VM *vm)
{
struct bootblk_command **cmdp;
bootblk_cmd_t *cmd;
char *name, *line;
FICL_STRING *tail = (FICL_STRING *)vm->pad;
int argc, result;
char **argv;
/* Get the name of the current word */
name = vm->runningWord->name;
/* Find our command structure */
SET_FOREACH(cmdp, Xcommand_set) {
if (((*cmdp)->c_name != NULL) && !strcmp(name, (*cmdp)->c_name))
cmd = (*cmdp)->c_fn;
}
if (cmd == NULL)
panic("callout for unknown command '%s'", name);
/* Get remainder of invocation */
vmGetString(vm, tail, '\n');
/* XXX This is grostic */
line = malloc(strlen(name) + strlen(tail->text) + 2);
sprintf(line, "%s %s", name, tail->text);
command_errmsg = command_errbuf;
command_errbuf[0] = 0;
if (!parse(&argc, &argv, line)) {
result = (cmd)(argc, argv);
free(argv);
if (result != 0) {
strcpy(command_errmsg, vm->pad);
vmTextOut(vm, vm->pad, 1);
}
} else {
vmTextOut(vm, "parse error\n", 1);
}
free(line);
}
/*
* Initialise the Forth interpreter, create all our commands as words.
*/
void
bf_init(void)
{
struct bootblk_command **cmdp;
ficlInitSystem(10000); /* XXX what's the argument here? */
bf_vm = ficlNewVM();
/* make all commands appear as Forth words */
SET_FOREACH(cmdp, Xcommand_set)
ficlBuild((*cmdp)->c_name, bf_command, FW_DEFAULT);
}
/*
* Feed a line of user input to the Forth interpreter
*/
void
bf_run(char *line)
{
int result;
result = ficlExec(bf_vm, line);
if (result == VM_USEREXIT)
panic("interpreter exit");
}