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/*
* Creation Date: <2010/06/25 20:00:00 mcayland>
* Time-stamp: <2010/06/25 20:00:00 mcayland>
*
* <load.c>
*
* C implementation of load
*
* Copyright (C) 2010 Mark Cave-Ayland (mark.cave-ayland@siriusit.co.uk)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2
*
*/
#include "config.h"
#include "kernel/kernel.h"
#include "libopenbios/bindings.h"
#include "libopenbios/sys_info.h"
#include "libopenbios/load.h"
#ifdef CONFIG_LOADER_ELF
#include "libopenbios/elf_load.h"
#endif
#ifdef CONFIG_LOADER_AOUT
#include "libopenbios/aout_load.h"
#endif
#ifdef CONFIG_LOADER_FCODE
#include "libopenbios/fcode_load.h"
#endif
#ifdef CONFIG_LOADER_FORTH
#include "libopenbios/forth_load.h"
#endif
#ifdef CONFIG_LOADER_BOOTCODE
#include "libopenbios/bootcode_load.h"
#endif
struct sys_info sys_info;
void *elf_boot_notes = NULL;
/* ( addr -- size ) */
void load(ihandle_t dev)
{
/* Invoke the loaders on the specified device */
char *param;
ucell valid;
/* TODO: Currently the internal loader APIs use load-base directly, so
drop the address */
POP();
#ifdef CONFIG_LOADER_ELF
/* Grab the boot arguments */
push_str("bootargs");
push_str("/chosen");
fword("(find-dev)");
POP();
fword("get-package-property");
POP();
param = pop_fstr_copy();
elf_load(&sys_info, dev, param, &elf_boot_notes);
feval("state-valid @");
valid = POP();
if (valid) {
feval("saved-program-state >sps.file-size @");
return;
}
#endif
#ifdef CONFIG_LOADER_AOUT
aout_load(&sys_info, dev);
feval("state-valid @");
valid = POP();
if (valid) {
feval("saved-program-state >sps.file-size @");
return;
}
#endif
#ifdef CONFIG_LOADER_FCODE
fcode_load(dev);
feval("state-valid @");
valid = POP();
if (valid) {
feval("saved-program-state >sps.file-size @");
return;
}
#endif
#ifdef CONFIG_LOADER_FORTH
forth_load(dev);
feval("state-valid @");
valid = POP();
if (valid) {
feval("saved-program-state >sps.file-size @");
return;
}
#endif
#ifdef CONFIG_LOADER_BOOTCODE
/* Check for a "raw" %BOOT bootcode payload */
bootcode_load(dev);
feval("state-valid @");
valid = POP();
if (valid) {
feval("saved-program-state >sps.file-size @");
return;
}
#endif
/* Didn't load anything, so return zero size */
PUSH(0);
}
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