vbatts
/
grub
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

2004-07-27 Marco Gerards <metgerards@student.han.nl> 

* boot/powerpc/ieee1275/ieee1275.c (grub_ieee1275_release): New
	function.
	* commands/boot.c: Remove the check for `GRUB_UTIL'.
	* conf/powerpc-ieee1275.rmk (grubof_SOURCES): Add
	`loader/powerpc/ieee1275/linux.c',
	`loader/powerpc/ieee1275/linux_normal.c' and `commands/boot.c'.
	* include/grub/powerpc/ieee1275/ieee1275.h
	(grub_ieee1275_release): New prototype.
	* include/grub/powerpc/ieee1275/loader.h: Rewritten.
	* kern/powerpc/ieee1275/init.c (grub_machine_init): Initialize
	normal, boot, linux and linux_normal.
	* loader/powerpc/ieee1275/linux.c: New file.
	* loader/powerpc/ieee1275/linux_normal.c: Likewise.
This commit is contained in:
marco_g 2004-07-27 17:47:37 +00:00
parent 5a9e354626
commit a447c5dfb2
9 changed files with 398 additions and 31 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
ChangeLog
View File

@ -1,3 +1,19 @@
2004-07-27 Marco Gerards <metgerards@student.han.nl>
* boot/powerpc/ieee1275/ieee1275.c (grub_ieee1275_release): New
function.
* commands/boot.c: Remove the check for `GRUB_UTIL'.
* conf/powerpc-ieee1275.rmk (grubof_SOURCES): Add
`loader/powerpc/ieee1275/linux.c',
`loader/powerpc/ieee1275/linux_normal.c' and `commands/boot.c'.
* include/grub/powerpc/ieee1275/ieee1275.h
(grub_ieee1275_release): New prototype.
* include/grub/powerpc/ieee1275/loader.h: Rewritten.
* kern/powerpc/ieee1275/init.c (grub_machine_init): Initialize
normal, boot, linux and linux_normal.
* loader/powerpc/ieee1275/linux.c: New file.
* loader/powerpc/ieee1275/linux_normal.c: Likewise.
2004-07-12 Marco Gerards <metgerards@student.han.nl>
* normal/arg.c (grub_arg_parse): Correct error handling after

19
boot/powerpc/ieee1275/ieee1275.c
View File

@ -419,6 +419,25 @@ grub_ieee1275_claim (void *p, grub_size_t size,
return 0;
}
int
grub_ieee1275_release (void *p, grub_size_t size)
{
struct release_args {
struct grub_ieee1275_common_hdr common;
void *p;
grub_size_t size;
} args;
INIT_IEEE1275_COMMON (&args.common, "release", 2, 0);
args.p = p;
args.size = size;
if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
return -1;
return 0;
}
int
grub_ieee1275_set_property (grub_ieee1275_phandle_t phandle,
const char *propname, void *buf,

6
commands/boot.c
View File

@ -37,7 +37,7 @@ grub_cmd_boot (struct grub_arg_list *state __attribute__ ((unused)),
}
#ifdef GRUB_UTIL
void
grub_boot_init (void)
{
@ -50,7 +50,7 @@ grub_boot_fini (void)
{
grub_unregister_command ("boot");
}
#else /* ! GRUB_UTIL */
GRUB_MOD_INIT
{
(void)mod; /* To stop warning. */
@ -62,4 +62,4 @@ GRUB_MOD_FINI
{
grub_unregister_command ("boot");
}
#endif /* ! GRUB_UTIL */

2
conf/powerpc-ieee1275.rmk
View File

@ -41,7 +41,7 @@ grubof_SOURCES = boot/powerpc/ieee1275/cmain.c boot/powerpc/ieee1275/ieee1275.c
kern/powerpc/ieee1275/openfw.c fs/ext2.c fs/ufs.c fs/minix.c normal/cmdline.c \
normal/command.c normal/main.c normal/menu.c \
disk/powerpc/ieee1275/ofdisk.c disk/powerpc/ieee1275/partition.c \
kern/env.c normal/arg.c
kern/env.c normal/arg.c loader/powerpc/ieee1275/linux.c loader/powerpc/ieee1275/linux_normal.c commands/boot.c
grubof_HEADERS = grub/powerpc/ieee1275/ieee1275.h
grubof_CFLAGS = $(COMMON_CFLAGS)
grubof_ASFLAGS = $(COMMON_ASFLAGS)

1
include/grub/powerpc/ieee1275/ieee1275.h
View File

@ -84,6 +84,7 @@ int EXPORT_FUNC(grub_ieee1275_open) (char *node,
int EXPORT_FUNC(grub_ieee1275_close) (grub_ieee1275_ihandle_t ihandle);
int EXPORT_FUNC(grub_ieee1275_claim) (void *p, grub_size_t size, unsigned int align,
void **result);
int EXPORT_FUNC(grub_ieee1275_release) (void *p, grub_size_t size);
int EXPORT_FUNC(grub_ieee1275_set_property) (grub_ieee1275_phandle_t phandle,
const char *propname, void *buf,
grub_size_t size,

35
include/grub/powerpc/ieee1275/loader.h
View File

@ -1,7 +1,6 @@
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2002 Yoshinori K. Okuji <okuji@enbug.org>
* Copyright (C) 2003 Jeroen Dekkers <jeroen@dekkers.cx>
* Copyright (C) 2004 Free Software Foundation, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -21,31 +20,13 @@
#ifndef GRUB_LOADER_MACHINE_HEADER
#define GRUB_LOADER_MACHINE_HEADER 1
#include <grub/types.h>
#include <grub/symbol.h>
#include <grub/machine/multiboot.h>
/* The symbol shared between the normal mode and rescue mode
loader. */
void grub_load_linux (int argc, char *argv[]);
extern grub_uint32_t EXPORT_VAR(grub_linux_prot_size);
extern char *EXPORT_VAR(grub_linux_tmp_addr);
extern char *EXPORT_VAR(grub_linux_real_addr);
void EXPORT_FUNC(grub_linux_boot_zimage) (void) __attribute__ ((noreturn));
void EXPORT_FUNC(grub_linux_boot_bzimage) (void) __attribute__ ((noreturn));
/* This is an asm part of the chainloader. */
void EXPORT_FUNC(grub_chainloader_real_boot) (int drive, void *part_addr) __attribute__ ((noreturn));
/* The asm part of the multiboot loader. */
void EXPORT_FUNC(grub_multiboot_real_boot) (grub_addr_t entry,
struct grub_multiboot_info *mbi)
__attribute__ ((noreturn));
/* It is necessary to export these functions, because normal mode commands
reuse rescue mode commands. */
void grub_rescue_cmd_chainloader (int argc, char *argv[]);
void grub_rescue_cmd_linux (int argc, char *argv[]);
void grub_rescue_cmd_initrd (int argc, char *argv[]);
void grub_rescue_cmd_multiboot (int argc, char *argv[]);
void grub_rescue_cmd_module (int argc, char *argv[]);
void grub_linux_init (void);
void grub_linux_fini (void);
void grub_linux_normal_init (void);
void grub_linux_normal_fini (void);
#endif /* ! GRUB_LOADER_MACHINE_HEADER */

4
kern/powerpc/ieee1275/init.c
View File

@ -58,6 +58,10 @@ grub_machine_init (void)
grub_env_set ("prefix", "");
grub_ext2_init ();
grub_normal_init ();
grub_boot_init ();
grub_linux_init ();
grub_linux_normal_init ();
grub_ofdisk_init ();
grub_console_init ();
}

283
loader/powerpc/ieee1275/linux.c Normal file
View File

@ -0,0 +1,283 @@
/* linux.c - boot Linux */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2003, 2004 Free Software Foundation, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <grub/machine/loader.h>
#include <grub/machine/ieee1275.h>
#include <grub/elf.h>
#include <grub/loader.h>
#include <grub/dl.h>
#include <grub/mm.h>
#include <grub/rescue.h>
#include <grub/misc.h>
static grub_dl_t my_mod;
static int loaded;
static int vmlinux;
static grub_addr_t initrd_addr;
static grub_size_t initrd_size;
static grub_addr_t linux_addr;
static grub_size_t linux_size;
static char *linux_args;
typedef void (*kernel_entry_t) (void *, unsigned long, intptr_t (void *),
unsigned long, unsigned long);
static grub_err_t
grub_linux_boot (void)
{
kernel_entry_t linuxmain;
grub_ieee1275_phandle_t chosen;
grub_size_t actual;
struct bi_rec
{
unsigned long tag;
unsigned long size;
unsigned long data[0];
};
grub_ieee1275_finddevice ("/chosen", &chosen);
/* Set the command line arguments. */
grub_ieee1275_set_property (chosen, "bootargs", linux_args,
grub_strlen (linux_args) + 1, &actual);
/* Boot the kernel. */
linuxmain = (kernel_entry_t) linux_addr;
linuxmain ((void *) initrd_addr, initrd_size, grub_ieee1275_entry_fn, 0, 0);
return GRUB_ERR_NONE;
}
static grub_err_t
grub_linux_release_mem (void)
{
grub_free (linux_args);
linux_args = 0;
if (linux_addr && grub_ieee1275_release ((void *) linux_addr, linux_size))
return grub_error (GRUB_ERR_OUT_OF_MEMORY, "Can not release memory");
linux_addr = 0;
return GRUB_ERR_NONE;
}
static grub_err_t
grub_linux_unload (void)
{
grub_err_t err;
err = grub_linux_release_mem ();
grub_dl_unref (my_mod);
loaded = 0;
return err;
}
void
grub_load_linux (int argc, char *argv[])
{
grub_file_t file = 0;
Elf32_Ehdr ehdr;
Elf32_Phdr *phdrs = 0;
int i;
int offset = 0;
static grub_addr_t entry;
int size;
grub_dl_ref (my_mod);
if (argc == 0)
{
grub_error (GRUB_ERR_BAD_ARGUMENT, "no kernel specified");
goto fail;
}
file = grub_file_open (argv[0]);
if (! file)
goto fail;
if (grub_file_read (file, (char *) &ehdr, sizeof (ehdr)) != sizeof (ehdr))
{
grub_error (GRUB_ERR_READ_ERROR, "cannot read the linux elf header");
goto fail;
}
if (!((ehdr.e_ident[EI_MAG0] == ELFMAG0)
&& (ehdr.e_ident[EI_MAG1] == ELFMAG1)
&& (ehdr.e_ident[EI_MAG2] == ELFMAG2)
&& (ehdr.e_ident[EI_MAG3] == ELFMAG3)
&& (ehdr.e_ident[EI_CLASS] == ELFCLASS32)
&& (ehdr.e_ident[EI_DATA] == ELFDATA2MSB)
&& (ehdr.e_ident[EI_VERSION] == EV_CURRENT)
&& (ehdr.e_type == ET_EXEC) && (ehdr.e_machine == EM_PPC)
&& (ehdr.e_version == EV_CURRENT)))
{
grub_error (GRUB_ERR_UNKNOWN_OS, "No valid ELF header found");
goto fail;
}
if (ehdr.e_type != ET_EXEC)
{
grub_error (GRUB_ERR_UNKNOWN_OS,
"This ELF file is not of the right type\n");
goto fail;
}
if (ehdr.e_machine != EM_PPC)
{
grub_error (GRUB_ERR_UNKNOWN_OS,
"This ELF file is not for the PPC32\n");
goto fail;
}
if (ehdr.e_version != EV_CURRENT)
{
grub_error (GRUB_ERR_UNKNOWN_OS,
"Invalid ELF version\n");
goto fail;
}
/* Read the sections. */
entry = ehdr.e_entry;
if (entry == 0xc0000000)
{
entry = 0x01400000;
vmlinux = 1;
}
else
vmlinux = 0;
phdrs = (Elf32_Phdr *) grub_malloc (ehdr.e_phnum * ehdr.e_phentsize);
grub_file_read (file, (void *) phdrs, ehdr.e_phnum * ehdr.e_phentsize);
/* Release the previously used memory. */
grub_loader_unset ();
/* Determine the amount of memory that is required. */
linux_size = 0;
for (i = 0; i < ehdr.e_phnum; i++)
{
Elf32_Phdr *phdr = phdrs + i;
/* XXX: Is this calculation correct? */
linux_size += phdr->p_memsz + phdr->p_filesz;
}
/* Reserve memory for the kernel. */
linux_size += 0x100000;
if (grub_ieee1275_claim ((void *) entry, linux_size, 0, (void *) &linux_addr) == -1)
{
grub_error (GRUB_ERR_OUT_OF_MEMORY, "Can not claim memory");
goto fail;
}
/* Load every loadable segment in memory. */
for (i = 0; i < ehdr.e_phnum; i++)
{
Elf32_Phdr *phdr = phdrs + i;
if (phdr->p_type == PT_LOAD)
{
if (grub_file_seek (file, phdr->p_offset) == -1)
{
grub_error (GRUB_ERR_BAD_OS, "Invalid offset in program header");
goto fail;
}
if (grub_file_read (file, (void *) (((char *) entry) + offset) , phdr->p_filesz)
!= (grub_ssize_t) phdr->p_filesz)
goto fail;
if (phdr->p_filesz < phdr->p_memsz)
grub_memset ((char *) (((char *) entry) + offset) + phdr->p_filesz, 0,
phdr->p_memsz - phdr->p_filesz);
offset += phdr->p_filesz;
}
}
size = 0;
for (i = 0; i < argc; i++)
size += grub_strlen (argv[i]);
linux_args = grub_malloc (size + argc + 1);
if (!linux_args)
goto fail;
for (i = 1; i < argc; i++)
{
grub_strcat (linux_args, argv[i]);
grub_strcat (linux_args, " ");
}
fail:
if (file)
grub_file_close (file);
grub_free (phdrs);
if (grub_errno != GRUB_ERR_NONE)
{
grub_linux_release_mem ();
grub_dl_unref (my_mod);
loaded = 0;
}
else
{
grub_loader_set (grub_linux_boot, grub_linux_unload);
initrd_addr = 0xc0000000;
loaded = 1;
}
return;
}
GRUB_MOD_INIT
{
grub_rescue_register_command ("linux", grub_load_linux,
"load a linux kernel");
my_mod = mod;
}
GRUB_MOD_FINI
{
grub_rescue_unregister_command ("linux");
}
void
grub_linux_init (void)
{
grub_rescue_register_command ("linux", grub_rescue_cmd_linux,
"load a linux kernel");
}
void
grub_linux_fini (void)
{
grub_rescue_unregister_command ("linux");
}

63
loader/powerpc/ieee1275/linux_normal.c Normal file
View File

@ -0,0 +1,63 @@
/* linux_normal.c - boot Linux */
/*
* GRUB -- Preliminary Universal Programming Architecture for GRUB
* Copyright (C) 2004 Free Software Foundation, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <grub/normal.h>
#include <grub/dl.h>
#include <grub/machine/loader.h>
static const struct grub_arg_option options[] =
{
{0, 0, 0, 0, 0, 0}
};
static grub_err_t
grub_cmd_linux (struct grub_arg_list *state __attribute__ ((unused)),
int argc, char **args)
{
grub_load_linux (argc, args);
return GRUB_ERR_NONE;
}
GRUB_MOD_INIT
{
(void) mod;
grub_register_command ("linux", grub_cmd_linux, GRUB_COMMAND_FLAG_BOTH,
"linux [KERNELARGS...]",
"Loads linux", options);
}
GRUB_MOD_FINI
{
grub_unregister_command ("linux");
}
void
grub_linux_normal_init (void)
{
grub_register_command ("linux", grub_cmd_linux, GRUB_COMMAND_FLAG_BOTH,
"linux [KERNELARGS...]",
"Loads linux", options);
}
void
grub_linux_normal_fini (void)
{
grub_unregister_command ("linux");
}