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authorobrien <obrien@FreeBSD.org>2002-12-31 02:29:03 +0000
committerobrien <obrien@FreeBSD.org>2002-12-31 02:29:03 +0000
commitcadc439a6972f1a09ba24a9054547f8e764821dd (patch)
tree9debd0c9625959a69e7a8561e1a08a7cb8f3f228 /sys/boot
parent443b8a76b61d163dd939884cc57d6fe158c545e5 (diff)
downloadFreeBSD-src-cadc439a6972f1a09ba24a9054547f8e764821dd.zip
FreeBSD-src-cadc439a6972f1a09ba24a9054547f8e764821dd.tar.gz
RIP liloldr.
It is not complete (the LILO root= specification isn't passed to our loader for instance), it has not been touched in over 2 years. Linux has moved on to GRUB, so this is OBE now. If someone creeps up to work on it, it could become a port.
Diffstat (limited to 'sys/boot')
-rw-r--r--sys/boot/i386/Makefile1
-rw-r--r--sys/boot/i386/liloldr/Makefile42
-rw-r--r--sys/boot/i386/liloldr/lilobsect.s41
-rw-r--r--sys/boot/i386/liloldr/liloldr.s280
4 files changed, 0 insertions, 364 deletions
diff --git a/sys/boot/i386/Makefile b/sys/boot/i386/Makefile
index 4fd9447..2cab077 100644
--- a/sys/boot/i386/Makefile
+++ b/sys/boot/i386/Makefile
@@ -4,6 +4,5 @@ SUBDIR= mbr boot0 btx boot2 cdboot kgzldr libi386 loader
# special boot programs, 'self-extracting boot2+loader'
SUBDIR+= pxeldr
-SUBDIR+= liloldr
.include <bsd.subdir.mk>
diff --git a/sys/boot/i386/liloldr/Makefile b/sys/boot/i386/liloldr/Makefile
deleted file mode 100644
index 5ccffee..0000000
--- a/sys/boot/i386/liloldr/Makefile
+++ /dev/null
@@ -1,42 +0,0 @@
-# $FreeBSD$
-
-ORG= 0x0
-
-LDR= liloldr
-BSECT= lilobsect
-BOOT= liloboot
-PROG= ${BOOT}
-NOMAN= 1
-STRIP=
-BINDIR?= /boot
-
-.if exists(${.OBJDIR}/../loader)
-LOADER= ${.OBJDIR}/../loader/loader
-.else
-LOADER= ${.CURDIR}/../loader/loader
-.endif
-
-.if exists(${LOADER})
-LOADER_SIZE != wc -c ${LOADER} | awk '{print int(($$1 + 15) / 16)}'
-AFLAGS= --defsym LOADER_SIZE=${LOADER_SIZE}
-.endif
-
-${BOOT}: ${BSECT} ${LDR} ${LOADER}
- cat ${BSECT} ${LDR} ${LOADER} > ${.TARGET}.tmp
- dd if=${.TARGET}.tmp of=${.TARGET} obs=2k conv=osync
- rm ${.TARGET}.tmp
-
-${LDR}: ${LDR}.o
- ${LD} -N -e start -Ttext ${ORG} -o ${LDR}.out ${LDR}.o
- objcopy -S -O binary ${LDR}.out ${.TARGET}
-
-${BSECT}: ${BSECT}.o
- ${LD} -N -e start -Ttext ${ORG} -o ${BSECT}.out ${BSECT}.o
- objcopy -S -O binary ${BSECT}.out ${.TARGET}
-
-${BSECT}.o: ${BSECT}.s ${LOADER}
-
-CLEANFILES+= ${LDR} ${LDR}.out ${LDR}.o \
- ${BSECT} ${BSECT}.out ${BSECT}.o ${BOOT}.tmp
-
-.include <bsd.prog.mk>
diff --git a/sys/boot/i386/liloldr/lilobsect.s b/sys/boot/i386/liloldr/lilobsect.s
deleted file mode 100644
index 0c81f5f..0000000
--- a/sys/boot/i386/liloldr/lilobsect.s
+++ /dev/null
@@ -1,41 +0,0 @@
-#
-# Copyright (c) 2000 Jonathan Lemon
-# All rights reserved.
-#
-# Redistribution and use in source and binary forms are freely
-# permitted provided that the above copyright notice and this
-# paragraph and the following disclaimer are duplicated in all
-# such forms.
-#
-# This software is provided "AS IS" and without any express or
-# implied warranties, including, without limitation, the implied
-# warranties of merchantability and fitness for a particular
-# purpose.
-#
-# $FreeBSD$
-
-#
-# LILO constants
-#
- .set SETUP_OFF,497 # offset of setup table
- .set SETUP_SECTORS,4 # historical
-
- .globl start
- .org 0x0, 0x0
-#
-# Create an empty bootblock, but fill in the setup table.
-#
-bootsect:
- .org SETUP_OFF,0x00
-#
-# bootblock setup for LILO
-#
- .byte SETUP_SECTORS # size of setup code in sectors
- .word 0x00 # read only root
- .word LOADER_SIZE # size of kernel in 16B units
- .word 0x00 # not used (swap dev?)
- .word 0x00 # ram disk size in KB
- .word 0xffff # video mode (80x25)
- .byte 0x00 # root dev major number
- .byte 0x00 # root dev minor number
- .word 0xaa55 # Magic number
diff --git a/sys/boot/i386/liloldr/liloldr.s b/sys/boot/i386/liloldr/liloldr.s
deleted file mode 100644
index 3aaa197..0000000
--- a/sys/boot/i386/liloldr/liloldr.s
+++ /dev/null
@@ -1,280 +0,0 @@
-#
-# Copyright (c) 2000 Jonathan Lemon <jlemon@FreeBSD.org>
-# Copyright (c) 2000 John Baldwin
-# All rights reserved.
-#
-# Redistribution and use in source and binary forms are freely
-# permitted provided that the above copyright notice and this
-# paragraph and the following disclaimer are duplicated in all
-# such forms.
-#
-# This software is provided "AS IS" and without any express or
-# implied warranties, including, without limitation, the implied
-# warranties of merchantability and fitness for a particular
-# purpose.
-#
-# $FreeBSD$
-
-#
-# This simple program is a preloader for the normal boot3 loader. It is
-# simply prepended to the beginning of a fully built and btxld'd loader.
-# It then copies the loader to the address boot2 normally loads it, emulates
-# the boot[12] environment (protected mode, a bootinfo struct, etc.), and
-# then jumps to the start of btxldr to start the boot process. This method
-# allows a stock /boot/loader to be booted from LILO.
-#
-
-#
-# Memory locations.
-#
- .set MEM_PAGE_SIZE,0x1000 # memory page size, 4k
- .set MEM_ARG,0x900 # Arguments at start
- .set MEM_ARG_BTX,0xa100 # Where we move them to so the
- # BTX client can see them
- .set MEM_ARG_SIZE,0x18 # Size of the arguments
- .set MEM_BTX_ADDRESS,0x9000 # where BTX lives
- .set MEM_BTX_ENTRY,0x9010 # where BTX starts to execute
- .set MEM_BTX_OFFSET,MEM_PAGE_SIZE # offset of BTX in the loader
- .set MEM_BTX_CLIENT,0xa000 # where BTX clients live
-#
-# a.out header fields
-#
- .set AOUT_TEXT,0x04 # text segment size
- .set AOUT_DATA,0x08 # data segment size
- .set AOUT_BSS,0x0c # zero'd BSS size
- .set AOUT_SYMBOLS,0x10 # symbol table
- .set AOUT_ENTRY,0x14 # entry point
- .set AOUT_HEADER,MEM_PAGE_SIZE # size of the a.out header
-#
-# Flags for kargs->bootflags
-#
- .set KARGS_FLAGS_LILO,0x4 # flag to indicate booting from
- # LILO loader
-#
-# Segment selectors.
-#
- .set SEL_SDATA,0x8 # Supervisor data
- .set SEL_RDATA,0x10 # Real mode data
- .set SEL_SCODE,0x18 # PM-32 code
- .set SEL_SCODE16,0x20 # PM-16 code
-#
-# BTX constants
-#
- .set INT_SYS,0x30 # BTX syscall interrupt
-#
-# LILO constants
-#
- .set SETUP_OFF,497 # offset of setup table
- .set SETUP_SECTORS,4 # historical
- .set SEG_LOADER,0x1000 # segment for loader
- .set SEG_BSECT,0x9000 # segment for bootsector
- .set SEG_SETUP,0x9020 # segment for setup
- .set LDR_BASE,0x10000 # where LILO puts loader
- .set SETUP_BASE,0x90200 # base address for us
- .set ROOT_DEV,0x901FC
-#
-# We expect to be loaded by LILO at 0x90200, and the loader at LDR_BASE
-# %cs upon entry == SEG_SETUP == 0x9020
-#
- .code16
- .globl start
- .org 0x0, 0x0
-#
-# BTX program loader for LILO booting
-#
-start: jmp code_start
-
- .ascii "HdrS" # signature
- .word 0x0201 # version
- .word 0x00,0x00,0x00 # LOADLIN hacks
- .word welcome_msg
- .byte 0x00 # loader type (LILO)
- .byte 0x00 # load kernel high (NO)
- .word 0x00 # LOADLIN hacks
- .long SEG_LOADER # load address
- .long 0x00 # ramdisk image
- .long 0x00 # ramdisk size
- .word 0x00,0x00 # bzImage hacks
- .word 0x00 # heap end pointer
-
-code_start: cld # string ops inc
- movw $SEG_BSECT, %ax # use bootsector area
- movw %ax, %ss # for the
- movw $0x1E0, %sp # stack
- movw %cs, %ax # inherit code segment
- movw %ax, %ds # setup the
- movw %ax, %es # data segments
- movw $welcome_msg, %si # %ds:(%si) -> welcome message
- callw putstr # display the welcome message
-#
-# Turn on the A20 address line
-#
- callw seta20 # Turn A20 on
-#
-# Dealing with segments is a pain, so move into protected mode immediately.
-#
- movw $relocate_msg, %si # Display the
- callw putstr # relocation message
- lgdt gdtdesc # setup our own gdt
- cli # turn off interrupts
- movl %cr0, %eax # Turn on
- orb $0x1, %al # protected
- movl %eax, %cr0 # mode
- ljmp $SEL_SCODE,$pm_start # long jump to clear the
- # instruction pre-fetch queue
- .code32
-pm_start: movw $SEL_SDATA, %ax # Initialize
- movw %ax, %ds # %ds and
- movw %ax, %es # %es to a flat selector
- movl LDR_BASE+AOUT_ENTRY, %edi # %edi is the destination
- movl $LDR_BASE+AOUT_HEADER, %esi # %esi is
- # the start of the text
- # segment
- movl LDR_BASE+AOUT_TEXT, %ecx # %ecx = length of the text
- # segment
- rep # Relocate the
- movsb # text segment
- addl $(MEM_PAGE_SIZE - 1), %edi # pad %edi out to a new page
- andl $~(MEM_PAGE_SIZE - 1), %edi # for the data segment
- movl LDR_BASE+AOUT_DATA, %ecx # size of the data segment
- rep # Relocate the
- movsb # data segment
- movl LDR_BASE+AOUT_BSS, %ecx # size of the bss
- xorl %eax, %eax # zero %eax
- addb $3, %cl # round %ecx up to
- shrl $2, %ecx # a multiple of 4
- rep # zero the
- stosl # bss
- movl LDR_BASE+AOUT_ENTRY, %esi # %esi -> relocated loader
- addl $MEM_BTX_OFFSET, %esi # %esi -> BTX in the loader
- movl $MEM_BTX_ADDRESS, %edi # %edi -> where BTX needs to go
- movzwl 0xa(%esi), %ecx # %ecx -> length of BTX
- rep # Relocate
- movsb # BTX
-#
-# Copy the BTX client to MEM_BTX_CLIENT
-#
- movl $MEM_BTX_CLIENT, %edi # Prepare to relocate
- movl $SETUP_BASE+btx_client, %esi # the simple btx client
- movl $(btx_client_end-btx_client), %ecx # length of btx client
- rep # Relocate the
- movsb # simple BTX client
-#
-# Setup the boot[12] args for the BTX client
-#
- movl $MEM_ARG_BTX, %ebx # %ebx -> boot args
- movl %ebx, %edi # Destination
- movl $(MEM_ARG_SIZE/4), %ecx # Size of the arguments in longs
- xorl %eax, %eax # zero %eax
- rep # Clear the arguments
- stosl # to zero
- movw $KARGS_FLAGS_LILO, 0x8(%ebx) # set kargs->bootflags
- movw ROOT_DEV, %ax
- movw %ax, 0x04(%ebx)
-#
-# Save the entry point so the client can get to it later on
-#
- movl LDR_BASE+AOUT_ENTRY, %eax # load the entry point
- stosl # add it to the end of the
- # arguments
-#
-# setup is done, return
-#
- ljmp $SEL_SCODE16,$pm_16 # Jump to 16-bit PM
- .code16
-pm_16: movw $SEL_RDATA, %ax # Initialize
- movw %ax, %ds # %ds and
- movw %ax, %es # %es to a real mode selector
- movl %cr0, %eax # Turn off
- andb $~0x1, %al # protected
- movl %eax, %cr0 # mode
- ljmp $SEG_SETUP,$pm_end # Long jump to clear the
- # instruction pre-fetch queue
-pm_end: sti # Turn interrupts back on now
-#
-# Restore real mode environment
-#
- movw %cs, %ax # inherit code segment
- movw %ax, %ds # setup the
- movw %ax, %es # data segments
-#
-# Now we just start up BTX and let it do the rest
-#
- movw $jump_message, %si # Display the
- callw putstr # jump message
- ljmp $0,$MEM_BTX_ENTRY # Jump to the BTX entry point
-#
-# Display a null-terminated string
-#
-putstr: lodsb # load %al from %ds:(%si)
- testb %al,%al # stop at null
- jnz putc # if the char != null, output it
- retw # return when null is hit
-putc: movw $0x7,%bx # attribute for output
- movb $0xe,%ah # BIOS: put_char
- int $0x10 # call BIOS, print char in %al
- jmp putstr # keep looping
-
-#
-# Enable A20
-#
-seta20: cli # Disable interrupts
-seta20.1: inb $0x64,%al # Get status
- testb $0x2,%al # Busy?
- jnz seta20.1 # Yes
- movb $0xd1,%al # Command: Write
- outb %al,$0x64 # output port
-seta20.2: inb $0x64,%al # Get status
- testb $0x2,%al # Busy?
- jnz seta20.2 # Yes
- movb $0xdf,%al # Enable
- outb %al,$0x60 # A20
- sti # Enable interrupts
- retw # To caller
-
-#
-# BTX client to start btxldr
-#
- .code32
-btx_client: movl $(MEM_ARG_BTX-MEM_BTX_CLIENT+MEM_ARG_SIZE-4), %esi
- # %ds:(%esi) -> end
- # of boot[12] args
- movl $(MEM_ARG_SIZE/4), %ecx # Number of words to push
- std # Go backwards
-push_arg: lodsl # Read argument
- pushl %eax # Push it onto the stack
- loop push_arg # Push all of the arguments
- cld # In case anyone depends on this
- pushl MEM_ARG_BTX-MEM_BTX_CLIENT+MEM_ARG_SIZE # Entry point of
- # the loader
- pushl %eax # Emulate a near call
- movl $0x1, %eax # 'exec' system call
- int $INT_SYS # BTX system call
-btx_client_end:
- .code16
-
- .p2align 4
-#
-# Global descriptor table.
-#
-gdt: .word 0x0,0x0,0x0,0x0 # Null entry
- .word 0xffff,0x0,0x9200,0xcf # SEL_SDATA
- .word 0xffff,0x0200,0x9209,0x0f # SEL_RDATA
- .word 0xffff,0x0200,0x9a09,0x4f # SEL_SCODE (32-bit)
- .word 0xffff,0x0200,0x9a09,0x0f # SEL_SCODE16 (16-bit)
-gdt.1:
-#
-# Pseudo-descriptors.
-#
-gdtdesc: .word gdt.1-gdt-1 # Limit
- .long gdt+SETUP_BASE # Base
-
-welcome_msg: .asciz "LILO Loader 1.00\r\n\n"
-bootinfo_msg: .asciz "Building the boot loader arguments\r\n"
-relocate_msg: .asciz "Relocating the loader and the BTX\r\n"
-jump_message: .asciz "Starting the BTX loader\r\n"
-#
-# pad out to setup sectors.
-#
- .org SETUP_SECTORS*512,0x00
-end:
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