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freebsd-dev/sys/boot/alpha/libalpha/elf_freebsd.c

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Initial attempt to update the Alpha loader and kernel to use the machine independent elf loader and have access to kld modules. Jordan and I were not sure how to create boot floppies, and the things we tried just made SRM laugh in our faces - but it was upset at boot1 which was not touched by these changes. Essentially this has been untested. :-( What this does is to steal the last three slots from the nine spare longs in the bootinfo_v1 struct to pass the module base pointer through. The startup code now to set up and fills in the module and environment structures, hopefully close enough to the i386 layout to be able to use the same kernel code. We now pass though the updated end of the kernel space used, rather than _end. (like the i386). If this does not work, it needs to be beaten into shape pronto. Otherwise it should be backed out before 3.0. Pre-approved in principle by: dfr
1998-10-14 09:53:25 +00:00
/* $Id: elf_freebsd.c,v 1.4 1998/10/11 03:53:35 dima Exp $ */
This is the new unified bootstrap, sometimes known previously as the 'three-stage' bootstrap. There are a number of caveats with the code in its current state: - The i386 bootstrap only supports booting from a floppy. - The kernel and kld do not yet know how to deal with the extended information and module summary passed in. - PnP-based autodetection and demand loading of modules is not implemented. - i386 ELF kernel loading is not ready yet. - The i386 bootstrap is loaded via an ugly blockmap. On the alpha, both net- and disk-booting (SRM console machines only) is supported. No blockmaps are used by this code. Obtained from: Parts from the NetBSD/i386 standalone bootstrap.
1998-08-21 03:17:42 +00:00
/* $NetBSD: loadfile.c,v 1.10 1998/06/25 06:45:46 ross Exp $ */
/*-
* Copyright (c) 1997 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
* NASA Ames Research Center.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
/*
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*
* @(#)boot.c 8.1 (Berkeley) 6/10/93
*/
#include <stand.h>
#include <string.h>
#include <sys/param.h>
add <sys/linker.h>
1998-10-11 03:53:35 +00:00
#include <sys/linker.h>
This is the new unified bootstrap, sometimes known previously as the 'three-stage' bootstrap. There are a number of caveats with the code in its current state: - The i386 bootstrap only supports booting from a floppy. - The kernel and kld do not yet know how to deal with the extended information and module summary passed in. - PnP-based autodetection and demand loading of modules is not implemented. - i386 ELF kernel loading is not ready yet. - The i386 bootstrap is loaded via an ugly blockmap. On the alpha, both net- and disk-booting (SRM console machines only) is supported. No blockmaps are used by this code. Obtained from: Parts from the NetBSD/i386 standalone bootstrap.
1998-08-21 03:17:42 +00:00
#include <machine/elf.h>
#include <machine/prom.h>
#include <machine/rpb.h>
#include <machine/bootinfo.h>
#include "bootstrap.h"
#define _KERNEL
static int elf_exec(struct loaded_module *amp);
Initial attempt to update the Alpha loader and kernel to use the machine independent elf loader and have access to kld modules. Jordan and I were not sure how to create boot floppies, and the things we tried just made SRM laugh in our faces - but it was upset at boot1 which was not touched by these changes. Essentially this has been untested. :-( What this does is to steal the last three slots from the nine spare longs in the bootinfo_v1 struct to pass the module base pointer through. The startup code now to set up and fills in the module and environment structures, hopefully close enough to the i386 layout to be able to use the same kernel code. We now pass though the updated end of the kernel space used, rather than _end. (like the i386). If this does not work, it needs to be beaten into shape pronto. Otherwise it should be backed out before 3.0. Pre-approved in principle by: dfr
1998-10-14 09:53:25 +00:00
int bi_load(struct bootinfo_v1 *, vm_offset_t *);
This is the new unified bootstrap, sometimes known previously as the 'three-stage' bootstrap. There are a number of caveats with the code in its current state: - The i386 bootstrap only supports booting from a floppy. - The kernel and kld do not yet know how to deal with the extended information and module summary passed in. - PnP-based autodetection and demand loading of modules is not implemented. - i386 ELF kernel loading is not ready yet. - The i386 bootstrap is loaded via an ugly blockmap. On the alpha, both net- and disk-booting (SRM console machines only) is supported. No blockmaps are used by this code. Obtained from: Parts from the NetBSD/i386 standalone bootstrap.
1998-08-21 03:17:42 +00:00
Bootloader update. - Implement a new copyin/readin interface for loading modules. This allows the module loaders to become MI, reducing code duplication. - Simplify the search for an image activator for the loaded kernel. - Use the common module management code for all module metadata. - Add an 'unload' command that throws everything away. - Move the a.out module loader to MI code, add support for a.out kld modules. Submitted by: Alpha changes fixed by Doug Rabson <dfr@freebsd.org>
1998-08-31 21:10:43 +00:00
struct module_format alpha_elf = { elf_loadmodule, elf_exec };
This is the new unified bootstrap, sometimes known previously as the 'three-stage' bootstrap. There are a number of caveats with the code in its current state: - The i386 bootstrap only supports booting from a floppy. - The kernel and kld do not yet know how to deal with the extended information and module summary passed in. - PnP-based autodetection and demand loading of modules is not implemented. - i386 ELF kernel loading is not ready yet. - The i386 bootstrap is loaded via an ugly blockmap. On the alpha, both net- and disk-booting (SRM console machines only) is supported. No blockmaps are used by this code. Obtained from: Parts from the NetBSD/i386 standalone bootstrap.
1998-08-21 03:17:42 +00:00
vm_offset_t ffp_save, ptbr_save;
static int
Bootloader update. - Implement a new copyin/readin interface for loading modules. This allows the module loaders to become MI, reducing code duplication. - Simplify the search for an image activator for the loaded kernel. - Use the common module management code for all module metadata. - Add an 'unload' command that throws everything away. - Move the a.out module loader to MI code, add support for a.out kld modules. Submitted by: Alpha changes fixed by Doug Rabson <dfr@freebsd.org>
1998-08-31 21:10:43 +00:00
elf_exec(struct loaded_module *mp)
This is the new unified bootstrap, sometimes known previously as the 'three-stage' bootstrap. There are a number of caveats with the code in its current state: - The i386 bootstrap only supports booting from a floppy. - The kernel and kld do not yet know how to deal with the extended information and module summary passed in. - PnP-based autodetection and demand loading of modules is not implemented. - i386 ELF kernel loading is not ready yet. - The i386 bootstrap is loaded via an ugly blockmap. On the alpha, both net- and disk-booting (SRM console machines only) is supported. No blockmaps are used by this code. Obtained from: Parts from the NetBSD/i386 standalone bootstrap.
1998-08-21 03:17:42 +00:00
{
Bootloader update. - Implement a new copyin/readin interface for loading modules. This allows the module loaders to become MI, reducing code duplication. - Simplify the search for an image activator for the loaded kernel. - Use the common module management code for all module metadata. - Add an 'unload' command that throws everything away. - Move the a.out module loader to MI code, add support for a.out kld modules. Submitted by: Alpha changes fixed by Doug Rabson <dfr@freebsd.org>
1998-08-31 21:10:43 +00:00
static struct bootinfo_v1 bootinfo_v1;
struct module_metadata *md;
Elf_Ehdr *hdr;
Initial attempt to update the Alpha loader and kernel to use the machine independent elf loader and have access to kld modules. Jordan and I were not sure how to create boot floppies, and the things we tried just made SRM laugh in our faces - but it was upset at boot1 which was not touched by these changes. Essentially this has been untested. :-( What this does is to steal the last three slots from the nine spare longs in the bootinfo_v1 struct to pass the module base pointer through. The startup code now to set up and fills in the module and environment structures, hopefully close enough to the i386 layout to be able to use the same kernel code. We now pass though the updated end of the kernel space used, rather than _end. (like the i386). If this does not work, it needs to be beaten into shape pronto. Otherwise it should be backed out before 3.0. Pre-approved in principle by: dfr
1998-10-14 09:53:25 +00:00
int err;
vm_offset_t ssym, esym;
Bootloader update. - Implement a new copyin/readin interface for loading modules. This allows the module loaders to become MI, reducing code duplication. - Simplify the search for an image activator for the loaded kernel. - Use the common module management code for all module metadata. - Add an 'unload' command that throws everything away. - Move the a.out module loader to MI code, add support for a.out kld modules. Submitted by: Alpha changes fixed by Doug Rabson <dfr@freebsd.org>
1998-08-31 21:10:43 +00:00
if ((md = mod_findmetadata(mp, MODINFOMD_ELFHDR)) == NULL)
return(EFTYPE); /* XXX actually EFUCKUP */
hdr = (Elf_Ehdr *)&(md->md_data);
This is the new unified bootstrap, sometimes known previously as the 'three-stage' bootstrap. There are a number of caveats with the code in its current state: - The i386 bootstrap only supports booting from a floppy. - The kernel and kld do not yet know how to deal with the extended information and module summary passed in. - PnP-based autodetection and demand loading of modules is not implemented. - i386 ELF kernel loading is not ready yet. - The i386 bootstrap is loaded via an ugly blockmap. On the alpha, both net- and disk-booting (SRM console machines only) is supported. No blockmaps are used by this code. Obtained from: Parts from the NetBSD/i386 standalone bootstrap.
1998-08-21 03:17:42 +00:00
Initial attempt to update the Alpha loader and kernel to use the machine independent elf loader and have access to kld modules. Jordan and I were not sure how to create boot floppies, and the things we tried just made SRM laugh in our faces - but it was upset at boot1 which was not touched by these changes. Essentially this has been untested. :-( What this does is to steal the last three slots from the nine spare longs in the bootinfo_v1 struct to pass the module base pointer through. The startup code now to set up and fills in the module and environment structures, hopefully close enough to the i386 layout to be able to use the same kernel code. We now pass though the updated end of the kernel space used, rather than _end. (like the i386). If this does not work, it needs to be beaten into shape pronto. Otherwise it should be backed out before 3.0. Pre-approved in principle by: dfr
1998-10-14 09:53:25 +00:00
/* XXX ffp_save does not appear to be used in the kernel.. */
err = bi_load(&bootinfo_v1, &ffp_save);
if (err)
return(err);
This is the new unified bootstrap, sometimes known previously as the 'three-stage' bootstrap. There are a number of caveats with the code in its current state: - The i386 bootstrap only supports booting from a floppy. - The kernel and kld do not yet know how to deal with the extended information and module summary passed in. - PnP-based autodetection and demand loading of modules is not implemented. - i386 ELF kernel loading is not ready yet. - The i386 bootstrap is loaded via an ugly blockmap. On the alpha, both net- and disk-booting (SRM console machines only) is supported. No blockmaps are used by this code. Obtained from: Parts from the NetBSD/i386 standalone bootstrap.
1998-08-21 03:17:42 +00:00
/*
* Fill in the bootinfo for the kernel.
*/
bzero(&bootinfo_v1, sizeof(bootinfo_v1));
bootinfo_v1.ssym = ssym;
bootinfo_v1.esym = esym;
Bootloader update. - Implement a new copyin/readin interface for loading modules. This allows the module loaders to become MI, reducing code duplication. - Simplify the search for an image activator for the loaded kernel. - Use the common module management code for all module metadata. - Add an 'unload' command that throws everything away. - Move the a.out module loader to MI code, add support for a.out kld modules. Submitted by: Alpha changes fixed by Doug Rabson <dfr@freebsd.org>
1998-08-31 21:10:43 +00:00
strncpy(bootinfo_v1.booted_kernel, mp->m_name,
This is the new unified bootstrap, sometimes known previously as the 'three-stage' bootstrap. There are a number of caveats with the code in its current state: - The i386 bootstrap only supports booting from a floppy. - The kernel and kld do not yet know how to deal with the extended information and module summary passed in. - PnP-based autodetection and demand loading of modules is not implemented. - i386 ELF kernel loading is not ready yet. - The i386 bootstrap is loaded via an ugly blockmap. On the alpha, both net- and disk-booting (SRM console machines only) is supported. No blockmaps are used by this code. Obtained from: Parts from the NetBSD/i386 standalone bootstrap.
1998-08-21 03:17:42 +00:00
sizeof(bootinfo_v1.booted_kernel));
prom_getenv(PROM_E_BOOTED_OSFLAGS, bootinfo_v1.boot_flags,
sizeof(bootinfo_v1.boot_flags));
bootinfo_v1.hwrpb = (void *)HWRPB_ADDR;
bootinfo_v1.hwrpbsize = ((struct rpb *)HWRPB_ADDR)->rpb_size;
bootinfo_v1.cngetc = NULL;
bootinfo_v1.cnputc = NULL;
bootinfo_v1.cnpollc = NULL;
Bootloader update. - Implement a new copyin/readin interface for loading modules. This allows the module loaders to become MI, reducing code duplication. - Simplify the search for an image activator for the loaded kernel. - Use the common module management code for all module metadata. - Add an 'unload' command that throws everything away. - Move the a.out module loader to MI code, add support for a.out kld modules. Submitted by: Alpha changes fixed by Doug Rabson <dfr@freebsd.org>
1998-08-31 21:10:43 +00:00
printf("Entering %s at 0x%lx...\n", mp->m_name, hdr->e_entry);
This is the new unified bootstrap, sometimes known previously as the 'three-stage' bootstrap. There are a number of caveats with the code in its current state: - The i386 bootstrap only supports booting from a floppy. - The kernel and kld do not yet know how to deal with the extended information and module summary passed in. - PnP-based autodetection and demand loading of modules is not implemented. - i386 ELF kernel loading is not ready yet. - The i386 bootstrap is loaded via an ugly blockmap. On the alpha, both net- and disk-booting (SRM console machines only) is supported. No blockmaps are used by this code. Obtained from: Parts from the NetBSD/i386 standalone bootstrap.
1998-08-21 03:17:42 +00:00
closeall();
alpha_pal_imb();
Bootloader update. - Implement a new copyin/readin interface for loading modules. This allows the module loaders to become MI, reducing code duplication. - Simplify the search for an image activator for the loaded kernel. - Use the common module management code for all module metadata. - Add an 'unload' command that throws everything away. - Move the a.out module loader to MI code, add support for a.out kld modules. Submitted by: Alpha changes fixed by Doug Rabson <dfr@freebsd.org>
1998-08-31 21:10:43 +00:00
(*(void (*)())hdr->e_entry)(ffp_save, ptbr_save,
This is the new unified bootstrap, sometimes known previously as the 'three-stage' bootstrap. There are a number of caveats with the code in its current state: - The i386 bootstrap only supports booting from a floppy. - The kernel and kld do not yet know how to deal with the extended information and module summary passed in. - PnP-based autodetection and demand loading of modules is not implemented. - i386 ELF kernel loading is not ready yet. - The i386 bootstrap is loaded via an ugly blockmap. On the alpha, both net- and disk-booting (SRM console machines only) is supported. No blockmaps are used by this code. Obtained from: Parts from the NetBSD/i386 standalone bootstrap.
1998-08-21 03:17:42 +00:00
BOOTINFO_MAGIC, &bootinfo_v1, 1, 0);
}
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