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

* boot/sparc64/ieee1275/boot.S: Various size-reducing changes. 

Retrieve chosen/bootpath if bootpath isn't hardcoded.
	* conf/sparc64-ieee1275.rmk (grub_setup_SOURCES): Add
	util/ieee1275/ofpath.c.
	* util/sparc64/ieee1275/grub-ofpathname.c: Renamed to ...
	* util/ieee1275/grub-ofpathname.c: ... this. All users updated
	* include/grub/sparc64/ieee1275/boot.h
	(GRUB_BOOT_MACHINE_KERNEL_SECTOR): Renamed to ...
	(GRUB_BOOT_MACHINE_KERNEL_BYTE): ...this. Moved 8 bytes lower.
	* util/hostdisk.c (grub_util_biosdisk_get_osdev): New function.
	* util/ieee1275/ofpath.c (grub_util_devname_to_ofpath): Make argument
	const char *.
	* util/sparc64/ieee1275/grub-setup.c (compute_dest_ofpath): Removed.
	(setup): Use KERNEL_BYTE instead of KERNEL_SECTOR.
	Use grub_util_devname_to_ofpath. Zero-fill boot_devpath on same disk
	install.
This commit is contained in:
Vladimir 'phcoder' Serbinenko 2010-04-18 20:41:06 +02:00
parent 38e55e9058 a6a6609cfc
commit 0037de3fa3
10 changed files with 102 additions and 68 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
ChangeLog
View File

@ -1,3 +1,22 @@
2010-04-18 Vladimir Serbinenko <phcoder@gmail.com>
* boot/sparc64/ieee1275/boot.S: Various size-reducing changes.
Retrieve chosen/bootpath if bootpath isn't hardcoded.
* conf/sparc64-ieee1275.rmk (grub_setup_SOURCES): Add
util/ieee1275/ofpath.c.
* util/sparc64/ieee1275/grub-ofpathname.c: Renamed to ...
* util/ieee1275/grub-ofpathname.c: ... this. All users updated
* include/grub/sparc64/ieee1275/boot.h
(GRUB_BOOT_MACHINE_KERNEL_SECTOR): Renamed to ...
(GRUB_BOOT_MACHINE_KERNEL_BYTE): ...this. Moved 8 bytes lower.
* util/hostdisk.c (grub_util_biosdisk_get_osdev): New function.
* util/ieee1275/ofpath.c (grub_util_devname_to_ofpath): Make argument
const char *.
* util/sparc64/ieee1275/grub-setup.c (compute_dest_ofpath): Removed.
(setup): Use KERNEL_BYTE instead of KERNEL_SECTOR.
Use grub_util_devname_to_ofpath. Zero-fill boot_devpath on same disk
install.
2010-04-18 Grégoire Sutre <gregoire.sutre@gmail.com>
* util/grub-mkconfig.in: Corrected two == equality tests.

73
boot/sparc64/ieee1275/boot.S
View File

@ -45,8 +45,9 @@ boot_version: .byte GRUB_BOOT_VERSION_MAJOR, GRUB_BOOT_VERSION_MINOR
* load address plus the size of the prepended A.OUT header (32 bytes).
*/
boot_path:
. = _start + GRUB_BOOT_MACHINE_KERNEL_SECTOR
kernel_sector: .xword 2
. = _start + GRUB_BOOT_MACHINE_KERNEL_BYTE
boot_path_end:
kernel_byte: .xword (2 << 9)
kernel_address: .word GRUB_BOOT_MACHINE_KERNEL_ADDR
prom_finddev_name: .asciz "finddevice"
@ -77,11 +78,23 @@ prom_error:
/* %o0: OF call name
* %o1: input arg 1
*/
prom_call_1_1:
mov 1, %g1
ba prom_call
mov 1, %o5
prom_call_1_1_o2:
clr %o2
ba prom_call_x_1
mov 1, %g1
prom_call_getprop:
mov 4, %g1
stx %g1, [%l1 + 256]
mov CHOSEN_NODE_REG, %o1
ba prom_call_x_1
GET_ABS(prom_getprop_name, %o0)
prom_call_3_1_o1:
ba prom_call_3_1
mov BOOTDEV_REG, %o1
/* %o2: message string
* %o3: message length
*/
@ -95,8 +108,9 @@ console_write:
* %o2: input arg 2
* %o3: input arg 3
*/
prom_call_3_1:
prom_call_3_1:
mov 3, %g1
prom_call_x_1:
mov 1, %o5
/* fallthru */
@ -126,23 +140,17 @@ boot_continue:
* chosen_node = prom_finddevice("/chosen")
*/
GET_ABS(prom_finddev_name, %o0)
GET_ABS(prom_chosen_path, %o1)
call prom_call_1_1
clr %o2
call prom_call_1_1_o2
GET_ABS(prom_chosen_path, %o1)
ldx [%l1 + 0x20], CHOSEN_NODE_REG
brz CHOSEN_NODE_REG, prom_error
/* getprop(chosen_node, "stdout", &buffer, buffer_size) */
GET_ABS(prom_getprop_name, %o0)
mov 4, %g1
mov 1, %o5
mov CHOSEN_NODE_REG, %o1
GET_ABS(prom_stdout_name, %o2)
GET_ABS(prom_stdout_name, %o2)
add %l1, 256, %o3
mov 1024, %o4
call prom_call
stx %g1, [%l1 + 256]
call prom_call_getprop
mov 1024, %o4
lduw [%l1 + 256], STDOUT_NODE_REG
brz,pn STDOUT_NODE_REG, prom_error
@ -152,15 +160,25 @@ boot_continue:
call console_write
mov GRUB_NAME_LEN, %o3
GET_ABS(boot_path, %o3)
ldub [%o3], %o1
brnz,pn %o1, bootpath_known
/* getprop(chosen_node, "bootpath", &buffer, buffer_size) */
GET_ABS(prom_bootpath_name, %o2)
call prom_call_getprop
mov (boot_path_end - boot_path), %o4
bootpath_known:
/* Open up the boot_path, and use that handle to read the
* first block of the GRUB kernel image.
*
* bootdev_handle = open(boot_path)
*/
GET_ABS(prom_open_name, %o0)
GET_ABS(boot_path, %o1)
call prom_call_1_1
clr %o2
call prom_call_1_1_o2
GET_ABS(boot_path, %o1)
ldx [%l1 + 0x20], BOOTDEV_REG
brz,pn BOOTDEV_REG, prom_open_error
@ -168,28 +186,23 @@ boot_continue:
/* Since we have 64-bit cells, the high cell of the seek offset
* is zero and the low cell is the entire value.
*
* seek(bootdev, 0, *kernel_sector << 9)
* seek(bootdev, 0, *kernel_byte)
*/
GET_ABS(prom_seek_name, %o0)
mov BOOTDEV_REG, %o1
clr %o2
LDX_ABS(kernel_sector, 0x00, %o3)
call prom_call_3_1
sllx %o3, 9, %o3
call prom_call_3_1_o1
LDX_ABS(kernel_byte, 0x00, %o3)
/* read(bootdev, *kernel_address, 512) */
GET_ABS(prom_read_name, %o0)
mov BOOTDEV_REG, %o1
LDUW_ABS(kernel_address, 0x00, %o2)
call prom_call_3_1
call prom_call_3_1_o1
mov 512, %o3
LDUW_ABS(kernel_address, 0x00, %o2)
jmpl %o2, %o7
nop
1: ba,a 1b
. = _start + GRUB_BOOT_MACHINE_CODE_END
/* the last 4 bytes in the sector 0 contain the signature */

3
conf/sparc64-ieee1275.rmk
View File

@ -50,6 +50,7 @@ grub_mkimage_SOURCES = util/grub-mkrawimage.c util/misc.c \
# For grub-setup.
util/sparc64/ieee1275/grub-setup.c_DEPENDENCIES = grub_setup_init.h
grub_setup_SOURCES = util/sparc64/ieee1275/grub-setup.c util/hostdisk.c \
util/ieee1275/ofpath.c \
util/misc.c util/getroot.c kern/device.c kern/disk.c \
kern/err.c kern/misc.c kern/parser.c kern/partition.c \
kern/file.c kern/fs.c kern/env.c kern/list.c \
@ -69,7 +70,7 @@ grub_setup_SOURCES = util/sparc64/ieee1275/grub-setup.c util/hostdisk.c \
grub_setup_init.c
# For grub-ofpathname.
grub_ofpathname_SOURCES = util/sparc64/ieee1275/grub-ofpathname.c \
grub_ofpathname_SOURCES = util/ieee1275/grub-ofpathname.c \
util/ieee1275/ofpath.c util/misc.c gnulib/progname.c
# Scripts.

2
include/grub/sparc64/ieee1275/boot.h
View File

@ -45,7 +45,7 @@
#define GRUB_BOOT_MACHINE_BOOT_DEVPATH_END 0x80
#define GRUB_BOOT_MACHINE_KERNEL_SECTOR 0x88
#define GRUB_BOOT_MACHINE_KERNEL_BYTE 0x80
#define GRUB_BOOT_MACHINE_CODE_END \
(0x1fc - GRUB_BOOT_AOUT_HEADER_SIZE)

3
include/grub/util/hostdisk.h
View File

@ -20,8 +20,11 @@
#ifndef GRUB_BIOSDISK_MACHINE_UTIL_HEADER
#define GRUB_BIOSDISK_MACHINE_UTIL_HEADER 1
#include <grub/disk.h>
void grub_util_biosdisk_init (const char *dev_map);
void grub_util_biosdisk_fini (void);
char *grub_util_biosdisk_get_grub_dev (const char *os_dev);
const char *grub_util_biosdisk_get_osdev (grub_disk_t disk);
#endif /* ! GRUB_BIOSDISK_MACHINE_UTIL_HEADER */

2
include/grub/util/ofpath.h
View File

@ -1,6 +1,6 @@
#ifndef GRUB_OFPATH_MACHINE_UTIL_HEADER
#define GRUB_OFPATH_MACHINE_UTIL_HEADER 1
char *grub_util_devname_to_ofpath (char *devname);
char *grub_util_devname_to_ofpath (const char *devname);
#endif /* ! GRUB_OFPATH_MACHINE_UTIL_HEADER */

6
util/hostdisk.c
View File

@ -1352,3 +1352,9 @@ grub_util_biosdisk_get_grub_dev (const char *os_dev)
return make_device_name (drive, -1, -1);
#endif
}
const char *
grub_util_biosdisk_get_osdev (grub_disk_t disk)
{
return map[disk->id].device;
}

0
util/sparc64/ieee1275/grub-ofpathname.c → util/ieee1275/grub-ofpathname.c
View File

2
util/ieee1275/ofpath.c
View File

@ -368,7 +368,7 @@ strip_trailing_digits (const char *p)
}
char *
grub_util_devname_to_ofpath (char *devname)
grub_util_devname_to_ofpath (const char *devname)
{
char *name_buf, *device, *devnode, *devicenode, *ofpath;

60
util/sparc64/ieee1275/grub-setup.c
View File

@ -35,6 +35,7 @@
#include <grub/term.h>
#include <grub/util/raid.h>
#include <grub/util/lvm.h>
#include <grub/util/ofpath.h>
#include <grub_setup_init.h>
@ -103,28 +104,6 @@ grub_refresh (void)
fflush (stdout);
}
static char *compute_dest_ofpath (const char *dest)
{
int len = strlen (dest);
char *res, *p, c;
res = xmalloc (len);
p = res;
while ((c = *dest++) != '\0')
{
if (c == '\\' && *dest == ',')
{
*p++ = ',';
dest++;
}
else
*p++ = c;
}
*p++ = '\0';
return res;
}
static void
setup (const char *prefix, const char *dir,
const char *boot_file, const char *core_file,
@ -135,8 +114,8 @@ setup (const char *prefix, const char *dir,
size_t boot_size, core_size;
grub_uint16_t core_sectors;
grub_device_t root_dev, dest_dev;
char *boot_devpath, *dest_ofpath;
grub_disk_addr_t *kernel_sector;
char *boot_devpath;
grub_disk_addr_t *kernel_byte;
struct boot_blocklist *first_block, *block;
char *tmp_img;
int i;
@ -195,8 +174,6 @@ setup (const char *prefix, const char *dir,
last_length = length;
}
dest_ofpath = compute_dest_ofpath (dest);
/* Read the boot image by the OS service. */
boot_path = grub_util_get_path (dir, boot_file);
boot_size = grub_util_get_image_size (boot_path);
@ -210,9 +187,9 @@ setup (const char *prefix, const char *dir,
boot_devpath = (char *) (boot_img
+ GRUB_BOOT_AOUT_HEADER_SIZE
+ GRUB_BOOT_MACHINE_BOOT_DEVPATH);
kernel_sector = (grub_disk_addr_t *) (boot_img
+ GRUB_BOOT_AOUT_HEADER_SIZE
+ GRUB_BOOT_MACHINE_KERNEL_SECTOR);
kernel_byte = (grub_disk_addr_t *) (boot_img
+ GRUB_BOOT_AOUT_HEADER_SIZE
+ GRUB_BOOT_MACHINE_KERNEL_BYTE);
core_path = grub_util_get_path (dir, core_file);
core_size = grub_util_get_image_size (core_path);
@ -229,8 +206,7 @@ setup (const char *prefix, const char *dir,
+ GRUB_DISK_SECTOR_SIZE
- sizeof (*block));
grub_util_info ("root is `%s', dest is `%s', and dest_ofpath is `%s'",
root, dest, dest_ofpath);
grub_util_info ("root is `%s', dest is `%s'", root, dest);
/* Open the root device and the destination device. */
grub_util_info ("Opening root");
@ -351,14 +327,30 @@ setup (const char *prefix, const char *dir,
!= (grub_ssize_t) core_size - GRUB_DISK_SECTOR_SIZE)
grub_util_error ("failed to read the rest sectors of the core image");
if (file->device->disk->id != dest_dev->disk->id)
{
const char *dest_ofpath;
dest_ofpath
= grub_util_devname_to_ofpath (grub_util_biosdisk_get_osdev (file->device->disk));
grub_util_info ("dest_ofpath is `%s'", dest_ofpath);
strncpy (boot_devpath, dest_ofpath, GRUB_BOOT_MACHINE_BOOT_DEVPATH_END
- GRUB_BOOT_MACHINE_BOOT_DEVPATH - 1);
boot_devpath[GRUB_BOOT_MACHINE_BOOT_DEVPATH_END
- GRUB_BOOT_MACHINE_BOOT_DEVPATH - 1] = 0;
}
else
{
grub_util_info ("non cross-disk install");
memset (boot_devpath, 0, GRUB_BOOT_MACHINE_BOOT_DEVPATH_END
- GRUB_BOOT_MACHINE_BOOT_DEVPATH);
}
grub_file_close (file);
free (core_path);
free (tmp_img);
*kernel_sector = grub_cpu_to_be64 (first_sector);
strcpy(boot_devpath, dest_ofpath);
*kernel_byte = grub_cpu_to_be64 (first_sector << GRUB_DISK_SECTOR_BITS);
grub_util_info ("boot device path %s, prefix is %s, dest is %s",
boot_devpath, prefix, dest);