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DuetPkg BootSector: fix bugs in .S files so that 32-bit and 64-bit DUET can boot to Shell with boot sector binaries built by GCC. 

There is also a bug in bs32.asm/bs32.S that the space between the code and the 0xAA55 ending signature is not enough to hold the 2 debug strings. It is fixed by shortening the strings.

Signed-off-by: rsun3
Reviewed-by: niruiyu


git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12930 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
rsun3 2012-01-13 06:29:44 +00:00
parent e8ef42833f
commit e7c4ef5ed4
6 changed files with 58 additions and 57 deletions
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4
DuetPkg/BootSector/Mbr.S
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@ -1,6 +1,6 @@
#------------------------------------------------------------------------------
#*
#* Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>
#* Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
#* This program and the accompanying materials
#* are licensed and made available under the terms and conditions of the BSD License
#* which accompanies this distribution. The full text of the license may be found at
@ -54,7 +54,7 @@ _start:
xorw %ax, %ax # AX = 0x0000
movw $0x7c00, %bx # BX = 0x7C00
movw $0x600, %bp # BP = 0x0600
movw RelocatedStart, %si # SI = Offset(RelocatedStart)
movw $RelocatedStart, %si # SI = Offset(RelocatedStart)
movw $0x200, %cx # CX = 0x0200
subw %si, %cx # CS = 0x0200 - Offset(RelocatedStart)
leaw (%bp,%si,), %di # DI = 0x0600 + Offset(RelocatedStart)

BIN
DuetPkg/BootSector/bin/bs32.com
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Binary file not shown.

12
DuetPkg/BootSector/bs32.S
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@ -1,6 +1,6 @@
#------------------------------------------------------------------------------
#*
#* Copyright (c) 2006 - 2007, Intel Corporation. All rights reserved.<BR>
#* Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
#* This program and the accompanying materials
#* are licensed and made available under the terms and conditions of the BSD License
#* which accompanies this distribution. The full text of the license may be found at
@ -207,7 +207,7 @@ PrintString:
movw %ax, %es
movw $0x7c0, %ax
movw %ax, %ds
movw $7, %cx
movw $6, %cx
movw $160, %di
rep
movsw
@ -288,15 +288,15 @@ Halt:
jmp Halt
StartString:
.byte 'B', 0x0c, 'S', 0x0c, 't', 0x0c, 'a', 0x0c, 'r', 0x0c, 't', 0x0c, '!', 0x0c
.byte 'B', 0x0c, 'S', 0x0c, 't', 0x0c, 'a', 0x0c, 'r', 0x0c, 't', 0x0c
ErrorString:
.byte 'B', 0x0c, 'E', 0x0c, 'r', 0x0c, 'r', 0x0c, 'o', 0x0c, 'r', 0x0c, '!', 0x0c
.byte 'B', 0x0c, 'E', 0x0c, 'r', 0x0c, 'r', 0x0c, 'o', 0x0c, 'r', 0x0c
# ****************************************************************************
# LBA Offset for BootSector, need patched by tool for HD boot.
# ****************************************************************************
#.org 0x01fa
.org 0x01fa
LBAOffsetForBootSector:
.long 0x0
@ -304,7 +304,7 @@ LBAOffsetForBootSector:
# Sector Signature
# ****************************************************************************
#.org 0x01fe
.org 0x01fe
SectorSignature:
.word 0xaa55 # Boot Sector Signature

12
DuetPkg/BootSector/bs32.asm
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@ -1,6 +1,6 @@
;------------------------------------------------------------------------------
;*
;* Copyright (c) 2006 - 2007, Intel Corporation. All rights reserved.<BR>
;* Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
;* This program and the accompanying materials
;* are licensed and made available under the terms and conditions of the BSD License
;* which accompanies this distribution. The full text of the license may be found at
@ -78,7 +78,7 @@ BootSectorEntryPoint:
; ****************************************************************************
; Start Print
; ****************************************************************************
lea si, cs:[StartString]
mov si, offset StartString
call PrintString
; ****************************************************************************
@ -206,7 +206,7 @@ PrintString:
mov es,ax
mov ax, 07c0h
mov ds, ax
mov cx, 7
mov cx, 6
mov di, 160
rep movsw
ret
@ -280,15 +280,15 @@ NotFoundAll:
jne FoundEFILDR
BadBootSector:
DiskError:
lea si, cs:[ErrorString]
mov si, offset ErrorString
call PrintString
Halt:
jmp Halt
StartString:
db 'B', 0ch, 'S', 0ch, 't', 0ch, 'a', 0ch, 'r', 0ch, 't', 0ch, '!', 0ch
db 'B', 0ch, 'S', 0ch, 't', 0ch, 'a', 0ch, 'r', 0ch, 't', 0ch
ErrorString:
db 'B', 0ch, 'E', 0ch, 'r', 0ch, 'r', 0ch, 'o', 0ch, 'r', 0ch, '!', 0ch
db 'B', 0ch, 'E', 0ch, 'r', 0ch, 'r', 0ch, 'o', 0ch, 'r', 0ch
; ****************************************************************************
; LBA Offset for BootSector, need patched by tool for HD boot.

79
DuetPkg/BootSector/efi64.S
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@ -59,15 +59,16 @@ Start:
call ClearScreen
# Populate IDT with meaningful offsets for exception handlers...
sidt Idtr
movl $Idtr, %eax
sidt (%eax) # get fword address of IDT
movl Halt, %eax
movl $Halt, %eax
movl %eax,%ebx # use bx to copy 15..0 to descriptors
shrl $16,%eax # use ax to copy 31..16 to descriptors
# 63..32 of descriptors is 0
movl $0x78,%ecx # 78h IDT entries to initialize with unique entry points (exceptions)
movl (Idtr + 2), %esi
movl $(Idtr + 2), %esi
movl (%esi),%edi
LOOP_1: # loop through all IDT entries exception handlers and initialize to default handler
@ -77,7 +78,7 @@ LOOP_1: # loop through all IDT entries e
movw %ax, 6(%edi) # write bits 31..16 of offset
movl $0, 8(%edi) # write bits 31..16 of offset
addl $16, %edi # move up to next descriptor
addw DEFAULT_HANDLER_SIZE, %bx # move to next entry point
addw $DEFAULT_HANDLER_SIZE, %bx # move to next entry point
loopl LOOP_1 # loop back through again until all descriptors are initialized
## at this point edi contains the offset of the descriptor for INT 20
@ -126,7 +127,7 @@ LOOP_1: # loop through all IDT entries e
movl 0x30(%ebp),%edi # edi = [[22000 + [22014] + 3c] + 2c] = ImageBase (63..32 is zero, ignore)
movl 0x28(%ebp),%eax # eax = [[22000 + [22014] + 3c] + 24] = EntryPoint
addl %edi,%eax # eax = ImageBase + EntryPoint
movl %ebx, EfiLdrOffset
movl $EfiLdrOffset, %ebx
movl %eax, (%ebx) # Modify far jump instruction for correct entry point
movw 6(%ebp), %bx # bx = Number of sections
@ -158,8 +159,8 @@ SectionLoop:
cmpw $0,%bx
jne SectionLoop
movl (Idtr), %eax # get size of IDT
movzx (%edx), %eax
movl $Idtr, %edx # get size of IDT
movzxw (%edx), %eax
.byte 0xff
.byte 0xc0
# inc eax
@ -968,7 +969,7 @@ commonIdtEntry:
##
call ClearScreen
mov String1, %esi
movl $String1, %esi
call PrintString
.byte 0x48
movl 16*8(%ebp),%eax ## move Int number into RAX
@ -977,11 +978,11 @@ commonIdtEntry:
ja PrintDefaultString
PrintExceptionString:
shll $3,%eax ## multiply by 8 to get offset from StringTable to actual string address
addl StringTable, %eax
addl $StringTable, %eax
movl (%eax),%esi
jmp PrintTheString
PrintDefaultString:
movl IntUnknownString, %esi
movl $IntUnknownString, %esi
# patch Int number
movl %eax,%edx
call A2C
@ -992,7 +993,7 @@ PrintDefaultString:
movb %al,(%esi)
PrintTheString:
call PrintString
movl String2, %esi
movl $String2, %esi
call PrintString
.byte 0x48
movl 19*8(%ebp),%eax # CS
@ -1003,24 +1004,24 @@ PrintTheString:
.byte 0x48
movl 18*8(%ebp),%eax # RIP
call PrintQword
movl String3, %esi
movl $String3, %esi
call PrintString
movl $0xb8140,%edi
movl StringRax, %esi
movl $StringRax, %esi
call PrintString
.byte 0x48
movl 15*8(%ebp),%eax
call PrintQword
movl StringRcx, %esi
movl $StringRcx, %esi
call PrintString
.byte 0x48
movl 14*8(%ebp),%eax
call PrintQword
movl StringRdx, %esi
movl $StringRdx, %esi
call PrintString
.byte 0x48
movl 13*8(%ebp),%eax
@ -1028,19 +1029,19 @@ PrintTheString:
movl $0xb81e0,%edi
movl StringRbx, %esi
movl $StringRbx, %esi
call PrintString
.byte 0x48
movl 12*8(%ebp),%eax
call PrintQword
movl StringRsp, %esi
movl $StringRsp, %esi
call PrintString
.byte 0x48
movl 21*8(%ebp),%eax
call PrintQword
movl StringRbp, %esi
movl $StringRbp, %esi
call PrintString
.byte 0x48
movl 10*8(%ebp),%eax
@ -1048,19 +1049,19 @@ PrintTheString:
movl $0xb8280,%edi
movl StringRsi, %esi
movl $StringRsi, %esi
call PrintString
.byte 0x48
movl 9*8(%ebp),%eax
call PrintQword
movl StringRdi, %esi
movl $StringRdi, %esi
call PrintString
.byte 0x48
movl 8*8(%ebp),%eax
call PrintQword
movl StringEcode, %esi
movl $StringEcode, %esi
call PrintString
.byte 0x48
movl 17*8(%ebp),%eax
@ -1068,19 +1069,19 @@ PrintTheString:
movl $0xb8320,%edi
movl StringR8, %esi
movl $StringR8, %esi
call PrintString
.byte 0x48
movl 7*8(%ebp),%eax
call PrintQword
movl StringR9, %esi
movl $StringR9, %esi
call PrintString
.byte 0x48
movl 6*8(%ebp),%eax
call PrintQword
movl StringR10, %esi
movl $StringR10, %esi
call PrintString
.byte 0x48
movl 5*8(%ebp),%eax
@ -1088,19 +1089,19 @@ PrintTheString:
movl $0xb83c0,%edi
movl StringR11, %esi
movl $StringR11, %esi
call PrintString
.byte 0x48
movl 4*8(%ebp),%eax
call PrintQword
movl StringR12, %esi
movl $StringR12, %esi
call PrintString
.byte 0x48
movl 3*8(%ebp),%eax
call PrintQword
movl StringR13, %esi
movl $StringR13, %esi
call PrintString
.byte 0x48
movl 2*8(%ebp),%eax
@ -1108,19 +1109,19 @@ PrintTheString:
movl $0xb8460,%edi
movl StringR14, %esi
movl $StringR14, %esi
call PrintString
.byte 0x48
movl 1*8(%ebp),%eax
call PrintQword
movl StringR15, %esi
movl $StringR15, %esi
call PrintString
.byte 0x48
movl 0*8(%ebp),%eax
call PrintQword
movl StringSs, %esi
movl $StringSs, %esi
call PrintString
.byte 0x48
movl 22*8(%ebp),%eax
@ -1128,7 +1129,7 @@ PrintTheString:
movl $0xb8500,%edi
movl StringRflags, %esi
movl $StringRflags, %esi
call PrintString
.byte 0x48
movl 20*8(%ebp),%eax
@ -1152,7 +1153,7 @@ InnerLoop:
movl (%esi),%eax
call PrintQword
addl $8,%esi
mov $0x00, %al
movb $0x20, %al # blank character
movb %al,(%edi)
addl $2,%edi
loop InnerLoop
@ -1183,7 +1184,7 @@ InnerLoop1:
movl (%esi),%eax
call PrintQword
addl $8,%esi
movb $0x00, %al
movb $0x20, %al # blank character
movb %al,(%edi)
addl $2,%edi
loop InnerLoop1
@ -1299,7 +1300,7 @@ ClearScreen:
pushl %eax
pushl %ecx
movb $0x00, %al
movb $0x20, %al # blank character
movb $0xc,%ah
movl $0xb8000,%edi
movl $80*24,%ecx
@ -1347,11 +1348,11 @@ Int18String: .asciz "12h Machine check -"
Int19String: .asciz "13h SIMD Floating-Point Exception -"
IntUnknownString: .asciz "??h Unknown interrupt -"
StringTable: .long Int0String, Int1String, Int2String, Int3String, \
Int4String, Int5String, Int6String, Int7String, \
Int8String, Int9String, Int10String, Int11String, \
Int12String, Int13String, Int14String, Int15String,\
Int16String, Int17String, Int18String, Int19String
StringTable: .long Int0String, 0, Int1String, 0, Int2String, 0, Int3String, 0, \
Int4String, 0, Int5String, 0, Int6String, 0, Int7String, 0, \
Int8String, 0, Int9String, 0, Int10String, 0, Int11String, 0, \
Int12String, 0, Int13String, 0, Int14String, 0, Int15String, 0, \
Int16String, 0, Int17String, 0, Int18String, 0, Int19String, 0
String2: .asciz " HALT!! *** ("
String3: .asciz ")"

8
DuetPkg/BootSector/start32.S
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@ -1,6 +1,6 @@
#------------------------------------------------------------------------------
#*
#* Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>
#* Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
#* This program and the accompanying materials
#* are licensed and made available under the terms and conditions of the BSD License
#* which accompanies this distribution. The full text of the license may be found at
@ -311,11 +311,11 @@ Halt:
ErrorString:
.byte 'S', 0x0c, 'E', 0x0c, 'r', 0x0c, 'r', 0x0c, 'o', 0x0c, 'r', 0x0c, '!', 0x0c
# .org 0x01fa # Will cause build break
.org 0x01fa
LBAOffsetForBootSector:
.long 0x0
# .org 0x01fe # Will cause build break
.org 0x01fe
.word 0xaa55
#******************************************************************************
@ -328,7 +328,7 @@ LBAOffsetForBootSector:
.equ WRITE_DATA_PORT_CMD, 0x0d1 # 8042 command to write the data port
.equ ENABLE_A20_CMD, 0x0df # 8042 command to enable A20
# .org 0x200 # Will cause build break
.org 0x200
jmp start
Em64String:
.byte 'E', 0x0c, 'm', 0x0c, '6', 0x0c, '4', 0x0c, 'T', 0x0c, ' ', 0x0c, 'U', 0x0c, 'n', 0x0c, 's', 0x0c, 'u', 0x0c, 'p', 0x0c, 'p', 0x0c, 'o', 0x0c, 'r', 0x0c, 't', 0x0c, 'e', 0x0c, 'd', 0x0c, '!', 0x0c