2007-12-15 Bean <bean123ch@gmail.com>
* conf/i386-pc.rmk (pkgdata_IMAGES): Add lnxboot.img. (lnxboot_img_SOURCES): New variable. (lnxboot_img_ASFLAGS): Likewise. (lnxboot_img_LDFLAGS): Likewise. * boot/i386/pc/lnxboot.S: New file.
This commit is contained in:
robertmh
parent
2361c57885
commit
84be7599f6
4 changed files with 326 additions and 2 deletions
|
|
@ -1,3 +1,12 @@
|
|||
2007-12-15 Bean <bean123ch@gmail.com>
|
||||
|
||||
* conf/i386-pc.rmk (pkgdata_IMAGES): Add lnxboot.img.
|
||||
(lnxboot_img_SOURCES): New variable.
|
||||
(lnxboot_img_ASFLAGS): Likewise.
|
||||
(lnxboot_img_LDFLAGS): Likewise.
|
||||
|
||||
* boot/i386/pc/lnxboot.S: New file.
|
||||
|
||||
2007-11-24 Pavel Roskin <proski@gnu.org>
|
||||
|
||||
* configure.ac: Test if '--build-id=none' is supported by the
|
||||
|
|
|
|||
292
boot/i386/pc/lnxboot.S
Normal file
292
boot/i386/pc/lnxboot.S
Normal file
|
|
@ -0,0 +1,292 @@
|
|||
/* -*-Asm-*- */
|
||||
/*
|
||||
* GRUB -- GRand Unified Bootloader
|
||||
* Copyright (C) 1999,2000,2001,2002,2005,2006,2007 Free Software Foundation, Inc.
|
||||
*
|
||||
* GRUB 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 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#include <grub/boot.h>
|
||||
#include <grub/machine/boot.h>
|
||||
#include <grub/machine/kernel.h>
|
||||
|
||||
.file "lnxboot.S"
|
||||
|
||||
#define CODE_ADDR 0x6000
|
||||
#define CODE_LENG (code_end - start)
|
||||
#define DATA_ADDR ((GRUB_BOOT_MACHINE_KERNEL_ADDR) + 0x200)
|
||||
|
||||
#define BLCK_LENG 0x4000
|
||||
|
||||
.text
|
||||
|
||||
.code16
|
||||
|
||||
.globl start, _start
|
||||
|
||||
data_start:
|
||||
pushw %cs
|
||||
popw %ds
|
||||
xorl %eax, %eax
|
||||
xorl %ebx, %ebx
|
||||
call data_next
|
||||
|
||||
data_next:
|
||||
popw %bx
|
||||
movw %cs, %ax
|
||||
shll $4, %eax
|
||||
leal 0x200 + data_start - data_next(%ebx,%eax), %eax
|
||||
movzbl setup_sects - data_next(%bx), %ecx
|
||||
shll $9, %ecx
|
||||
addl %ecx, %eax
|
||||
movl %eax, code32_start - data_next(%bx)
|
||||
|
||||
jmp linux_next
|
||||
|
||||
. = data_start + 0x1F1
|
||||
|
||||
setup_sects:
|
||||
.byte (CODE_LENG >> 9)
|
||||
root_flags:
|
||||
.word 0
|
||||
syssize:
|
||||
.word 0
|
||||
swap_dev:
|
||||
.word 0
|
||||
ram_size:
|
||||
.word 0
|
||||
vid_mode:
|
||||
.word 0
|
||||
root_dev:
|
||||
.word 0
|
||||
boot_flag:
|
||||
.word 0xAA55
|
||||
|
||||
start:
|
||||
_start:
|
||||
|
||||
jmp linux_code
|
||||
|
||||
.ascii "HdrS" // Header signature
|
||||
.word 0x0203 // Header version number
|
||||
|
||||
realmode_swtch:
|
||||
.word 0, 0 // default_switch, SETUPSEG
|
||||
start_sys_seg:
|
||||
.word 0x1000 // obsolete
|
||||
version_ptr:
|
||||
.word 0 // version string ptr
|
||||
type_of_loader:
|
||||
.byte 0 // Filled in by boot loader
|
||||
loadflags:
|
||||
.byte 1 // Please load high
|
||||
setup_move_size:
|
||||
.word 0 // Unused
|
||||
code32_start:
|
||||
.long 0x100000 // 32-bit start address
|
||||
ramdisk_image:
|
||||
.long 0 // Loaded ramdisk image address
|
||||
ramdisk_size:
|
||||
.long 0 // Size of loaded ramdisk
|
||||
bootsect_kludge:
|
||||
.word 0, 0
|
||||
heap_end_ptr:
|
||||
.word 0
|
||||
pad1:
|
||||
.word 0
|
||||
cmd_line_ptr:
|
||||
.long 0 // Command line
|
||||
ramdisk_max:
|
||||
.long 0xffffffff // Highest allowed ramdisk address
|
||||
|
||||
gdt:
|
||||
.long 0, 0, 0, 0 // Must be zero
|
||||
.word 0xffff // 64 K segment size
|
||||
gdt_src1:
|
||||
.byte 0, 0 ,0 // Low 24 bits of source addy
|
||||
.byte 0x93 // Access rights
|
||||
.byte 0 // Extended access rights
|
||||
gdt_src2:
|
||||
.byte 0 // High 8 bits of source addy
|
||||
.word 0xffff // 64 K segment size
|
||||
gdt_dst1:
|
||||
.byte 0, 0, 0 // Low 24 bits of target addy
|
||||
.byte 0x93 // Access rights
|
||||
.byte 0 // Extended access rights
|
||||
gdt_dst2:
|
||||
.byte 0 // High 8 bits of source addy
|
||||
.long 0, 0, 0, 0 // More space for the BIOS
|
||||
|
||||
reg_edx:
|
||||
.byte 0x80,0,0xFF,0xFF
|
||||
|
||||
data_leng:
|
||||
.long 0
|
||||
|
||||
linux_code:
|
||||
|
||||
movw %cs:(reg_edx - start), %dx
|
||||
|
||||
linux_next:
|
||||
|
||||
call normalize
|
||||
|
||||
normalize:
|
||||
popw %bx
|
||||
subw $(normalize - start), %bx
|
||||
shrw $4, %bx
|
||||
movw %cs, %ax
|
||||
addw %bx, %ax
|
||||
pushw %ax
|
||||
pushw $(real_code - start)
|
||||
lret // jump to real_code
|
||||
|
||||
real_code:
|
||||
subw $0x20, %ax
|
||||
movw %ax, %ds
|
||||
movw (setup_sects - data_start), %cx
|
||||
shlw $7, %cx
|
||||
|
||||
// Setup stack
|
||||
|
||||
xorw %si, %si
|
||||
movw %si, %ss
|
||||
movw $(CODE_ADDR), %sp
|
||||
|
||||
pushl %esi
|
||||
pushl %edi
|
||||
|
||||
// Move itself to 0:CODE_ADDR
|
||||
|
||||
cld
|
||||
movw %cs, %ax
|
||||
movw %ax, %ds
|
||||
movw $(CODE_ADDR >> 4), %ax
|
||||
movw %ax, %es
|
||||
movw %si, %di
|
||||
|
||||
rep
|
||||
movsl
|
||||
|
||||
ljmp $(CODE_ADDR >> 4), $(real_code_2 - start)
|
||||
|
||||
real_code_2:
|
||||
|
||||
pushw %es
|
||||
popw %ds
|
||||
|
||||
movl (ramdisk_image - start), %esi
|
||||
or %esi, %esi
|
||||
jnz 1f
|
||||
movl (code32_start - start), %esi
|
||||
1:
|
||||
|
||||
movl $0x200, %ecx
|
||||
addl %ecx, %esi
|
||||
movl $DATA_ADDR, %edi
|
||||
|
||||
call move_memory
|
||||
|
||||
movsbl %dh, %eax
|
||||
movl %eax, %ss:(DATA_ADDR + GRUB_KERNEL_MACHINE_INSTALL_DOS_PART)
|
||||
|
||||
movsbl (reg_edx + 2 - start), %eax
|
||||
movl %eax, %ss:(DATA_ADDR + GRUB_KERNEL_MACHINE_INSTALL_BSD_PART)
|
||||
|
||||
movl %ss:(DATA_ADDR + GRUB_KERNEL_MACHINE_COMPRESSED_SIZE), %ecx
|
||||
addl $(GRUB_KERNEL_MACHINE_RAW_SIZE - 0x200), %ecx
|
||||
|
||||
call move_memory
|
||||
|
||||
popl %edi
|
||||
popl %esi
|
||||
|
||||
ljmp $(DATA_ADDR >> 4), $0
|
||||
|
||||
// Parameters:
|
||||
// esi: source address
|
||||
// edi: target address
|
||||
// ecx: number of bytes
|
||||
move_memory:
|
||||
incl %ecx
|
||||
andb $0xFE, %cl
|
||||
pushw %dx
|
||||
1:
|
||||
pushl %esi
|
||||
pushl %edi
|
||||
pushl %ecx
|
||||
cmpl $BLCK_LENG, %ecx
|
||||
jbe 2f
|
||||
movl $BLCK_LENG, %ecx
|
||||
2:
|
||||
pushl %ecx
|
||||
|
||||
movl %esi, %eax
|
||||
movw %si, (gdt_src1 - start)
|
||||
shrl $16, %eax
|
||||
movb %al, (gdt_src1 + 2 - start)
|
||||
movb %ah, (gdt_src2 - start)
|
||||
|
||||
movl %edi, %eax
|
||||
movw %di, (gdt_dst1 - start)
|
||||
shrl $16, %eax
|
||||
movb %al, (gdt_dst1 + 2 - start)
|
||||
movb %ah, (gdt_dst2 - start)
|
||||
|
||||
movw $(gdt - start), %si
|
||||
movb $0x87, %ah
|
||||
shrw $1, %cx
|
||||
|
||||
int $0x15
|
||||
|
||||
popl %eax
|
||||
popl %ecx
|
||||
popl %edi
|
||||
popl %esi
|
||||
|
||||
jnc 2f
|
||||
movw $(err_int15_msg - start), %si
|
||||
jmp fail
|
||||
|
||||
2:
|
||||
|
||||
leal (%esi, %eax), %esi
|
||||
leal (%edi, %eax), %edi
|
||||
subl %eax, %ecx
|
||||
jnz 1b
|
||||
|
||||
|
||||
popw %dx
|
||||
ret
|
||||
|
||||
// Parameters:
|
||||
// si: message
|
||||
fail:
|
||||
movb $0x0e, %ah
|
||||
xorw %bx, %bx
|
||||
1:
|
||||
lodsb (%si), %al
|
||||
int $0x10
|
||||
cmpb $0, %al
|
||||
jne 1b
|
||||
1: jmp 1b
|
||||
|
||||
err_int15_msg:
|
||||
.ascii "move memory fails\0"
|
||||
|
||||
. = (. & (~0x1FF)) + 0x1FF
|
||||
|
||||
.byte 0
|
||||
|
||||
code_end:
|
||||
|
|
@ -5,7 +5,7 @@ COMMON_CFLAGS = -fno-builtin -mrtd -mregparm=3 -m32
|
|||
COMMON_LDFLAGS = -m32 -nostdlib
|
||||
|
||||
# Images.
|
||||
pkgdata_IMAGES = boot.img diskboot.img kernel.img pxeboot.img
|
||||
pkgdata_IMAGES = boot.img diskboot.img kernel.img pxeboot.img lnxboot.img
|
||||
|
||||
# For boot.img.
|
||||
boot_img_SOURCES = boot/i386/pc/boot.S
|
||||
|
|
@ -61,6 +61,24 @@ diskboot_img-boot_i386_pc_diskboot.o: boot/i386/pc/diskboot.S
|
|||
diskboot_img_ASFLAGS = $(COMMON_ASFLAGS)
|
||||
diskboot_img_LDFLAGS = $(COMMON_LDFLAGS) -Wl,-N,-Ttext,8000
|
||||
|
||||
# For lnxboot.img.
|
||||
lnxboot_img_SOURCES = boot/i386/pc/lnxboot.S
|
||||
CLEANFILES += lnxboot.img lnxboot.exec lnxboot_img-boot_i386_pc_lnxboot.o
|
||||
MOSTLYCLEANFILES += lnxboot_img-boot_i386_pc_lnxboot.d
|
||||
|
||||
lnxboot.img: lnxboot.exec
|
||||
$(OBJCOPY) -O binary -R .note -R .comment $< $@
|
||||
|
||||
lnxboot.exec: lnxboot_img-boot_i386_pc_lnxboot.o
|
||||
$(TARGET_CC) -o $@ $^ $(TARGET_LDFLAGS) $(lnxboot_img_LDFLAGS)
|
||||
|
||||
lnxboot_img-boot_i386_pc_lnxboot.o: boot/i386/pc/lnxboot.S
|
||||
$(TARGET_CC) -Iboot/i386/pc -I$(srcdir)/boot/i386/pc $(TARGET_CPPFLAGS) -DASM_FILE=1 $(TARGET_ASFLAGS) $(lnxboot_img_ASFLAGS) -MD -c -o $@ $<
|
||||
-include lnxboot_img-boot_i386_pc_lnxboot.d
|
||||
|
||||
lnxboot_img_ASFLAGS = $(COMMON_ASFLAGS)
|
||||
lnxboot_img_LDFLAGS = $(COMMON_LDFLAGS) -Wl,-N,-Ttext,6000
|
||||
|
||||
# For kernel.img.
|
||||
kernel_img_SOURCES = kern/i386/pc/startup.S kern/main.c kern/device.c \
|
||||
kern/disk.c kern/dl.c kern/file.c kern/fs.c kern/err.c \
|
||||
|
|
|
|||
|
|
@ -5,7 +5,7 @@ COMMON_CFLAGS = -fno-builtin -mrtd -mregparm=3 -m32
|
|||
COMMON_LDFLAGS = -m32 -nostdlib
|
||||
|
||||
# Images.
|
||||
pkgdata_IMAGES = boot.img diskboot.img kernel.img pxeboot.img
|
||||
pkgdata_IMAGES = boot.img diskboot.img kernel.img pxeboot.img lnxboot.img
|
||||
|
||||
# For boot.img.
|
||||
boot_img_SOURCES = boot/i386/pc/boot.S
|
||||
|
|
@ -22,6 +22,11 @@ diskboot_img_SOURCES = boot/i386/pc/diskboot.S
|
|||
diskboot_img_ASFLAGS = $(COMMON_ASFLAGS)
|
||||
diskboot_img_LDFLAGS = $(COMMON_LDFLAGS) -Wl,-N,-Ttext,8000
|
||||
|
||||
# For lnxboot.img.
|
||||
lnxboot_img_SOURCES = boot/i386/pc/lnxboot.S
|
||||
lnxboot_img_ASFLAGS = $(COMMON_ASFLAGS)
|
||||
lnxboot_img_LDFLAGS = $(COMMON_LDFLAGS) -Wl,-N,-Ttext,6000
|
||||
|
||||
# For kernel.img.
|
||||
kernel_img_SOURCES = kern/i386/pc/startup.S kern/main.c kern/device.c \
|
||||
kern/disk.c kern/dl.c kern/file.c kern/fs.c kern/err.c \
|
||||
|
|
|
|||
Loading…
Reference in a new issue