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authormsmith <msmith@FreeBSD.org>1998-10-30 00:11:35 +0000
committermsmith <msmith@FreeBSD.org>1998-10-30 00:11:35 +0000
commitb7cb0214c9d1d58dee92583d1e51ce096bf6c0e9 (patch)
treeebd4e08fbcda479caceecde741ead2710e64e01a /sys/boot/i386/btx
parent88e66bf771b4877931fd58ad525072c9c4e1fc4c (diff)
downloadFreeBSD-src-b7cb0214c9d1d58dee92583d1e51ce096bf6c0e9.zip
FreeBSD-src-b7cb0214c9d1d58dee92583d1e51ce096bf6c0e9.tar.gz
Make the BTX loader much more quiet about what it's doing. This removes
most of the "what the (*^&%(*^ was that?" stuff that normally flies by.
Diffstat (limited to 'sys/boot/i386/btx')
-rw-r--r--sys/boot/i386/btx/btxldr/Makefile5
-rw-r--r--sys/boot/i386/btx/btxldr/btxldr.S68
-rw-r--r--sys/boot/i386/btx/btxldr/btxldr.s68
3 files changed, 87 insertions, 54 deletions
diff --git a/sys/boot/i386/btx/btxldr/Makefile b/sys/boot/i386/btx/btxldr/Makefile
index 9df9681..32cb4ad 100644
--- a/sys/boot/i386/btx/btxldr/Makefile
+++ b/sys/boot/i386/btx/btxldr/Makefile
@@ -1,6 +1,7 @@
-# $Id: Makefile,v 1.4 1998/09/25 17:14:15 peter Exp $
+# $Id: Makefile,v 1.5 1998/10/13 18:29:18 rnordier Exp $
ORG=0x100000
+AFLAGS+= --assembler-with-cpp
all: btxldr
@@ -14,7 +15,7 @@ btxldr: btxldr.o
.endif
btxldr.o: btxldr.s
- ${AS} ${AFLAGS} -o ${.TARGET} ${.CURDIR}/btxldr.s
+ ${CC} ${AFLAGS} -c -o ${.TARGET} ${.CURDIR}/btxldr.s
CLEANFILES+= btxldr btxldr.out btxldr.o
diff --git a/sys/boot/i386/btx/btxldr/btxldr.S b/sys/boot/i386/btx/btxldr/btxldr.S
index 7a6bd50..a3172e3 100644
--- a/sys/boot/i386/btx/btxldr/btxldr.S
+++ b/sys/boot/i386/btx/btxldr/btxldr.S
@@ -13,7 +13,7 @@
# purpose.
#
-# $Id: btxldr.s,v 1.2 1998/10/06 06:13:36 msmith Exp $
+# $Id: btxldr.s,v 1.3 1998/10/06 07:15:35 rnordier Exp $
#
# Prototype BTX loader program, written in a couple of hours. The
@@ -70,24 +70,24 @@ start: cld # String ops inc
shll $0xa,%eax # in bytes
movl %eax,%ebp # Base of user stack
movl $m_mem,%esi # Display
- call hexout # amount of
- call putstr # base memory
+ call dhexout # amount of
+ call dputstr # base memory
lgdt gdtdesc # Load new GDT
#
# Relocate caller's arguments.
#
movl $m_esp,%esi # Display
movl %esp,%eax # caller's
- call hexout # stack
- call putstr # pointer
+ call dhexout # stack
+ call dputstr # pointer
movl $m_args,%esi # Format string
leal 0x4(%esp,1),%ebx # First argument
movl $0x6,%ecx # Count
start.1: movl (%ebx),%eax # Get argument and
addl $0x4,%ebx # bump pointer
- call hexout # Display it
+ call dhexout # Display it
loop start.1 # Till done
- call putstr # End message
+ call dputstr # End message
movl $0x48,%ecx # Allocate space
subl %ecx,%ebp # for bootinfo
movl 0x18(%esp,1),%esi # Source
@@ -97,8 +97,8 @@ start.1: movl (%ebx),%eax # Get argument and
movl %ebp,0x18(%esp,1) # Update pointer
movl $m_rel_bi,%esi # Display
movl %ebp,%eax # bootinfo
- call hexout # relocation
- call putstr # message
+ call dhexout # relocation
+ call dputstr # message
movl $0x18,%ecx # Allocate space
subl %ecx,%ebp # for arguments
leal 0x4(%esp,1),%esi # Source
@@ -107,8 +107,8 @@ start.1: movl (%ebx),%eax # Get argument and
movsb # them
movl $m_rel_args,%esi # Display
movl %ebp,%eax # argument
- call hexout # relocation
- call putstr # message
+ call dhexout # relocation
+ call dputstr # message
#
# Set up BTX kernel.
#
@@ -145,16 +145,16 @@ start.1: movl (%ebx),%eax # Get argument and
movl %esi,%ebx # Keep place
movl $m_rel_btx,%esi # Restore
popl %eax # parameters
- call hexout # and
+ call dhexout # and
popl %ebp # display
movl %ebp,%eax # the
- call hexout # relocation
- call putstr # message
+ call dhexout # relocation
+ call dputstr # message
addl $PAG_SIZ,%ebp # Display
movl $m_base,%esi # the
movl %ebp,%eax # user
- call hexout # base
- call putstr # address
+ call dhexout # base
+ call dputstr # address
#
# Set up ELF-format client program.
#
@@ -164,7 +164,7 @@ start.1: movl (%ebx),%eax # Get argument and
call putstr # message
start.2: jmp start.2 # Hang
start.3: movl $m_elf,%esi # Display ELF
- call putstr # message
+ call dputstr # message
movl $m_segs,%esi # Format string
movl $0x2,%edi # Segment count
movl 0x1c(%ebx),%edx # Get e_phoff
@@ -173,14 +173,14 @@ start.3: movl $m_elf,%esi # Display ELF
start.4: cmpl $0x1,(%edx) # Is p_type PT_LOAD?
jne start.6 # No
movl 0x4(%edx),%eax # Display
- call hexout # p_offset
+ call dhexout # p_offset
movl 0x8(%edx),%eax # Display
- call hexout # p_vaddr
+ call dhexout # p_vaddr
movl 0x10(%edx),%eax # Display
- call hexout # p_filesz
+ call dhexout # p_filesz
movl 0x14(%edx),%eax # Display
- call hexout # p_memsz
- call putstr # End message
+ call dhexout # p_memsz
+ call dputstr # End message
pushl %esi # Save
pushl %edi # working
pushl %ecx # registers
@@ -205,7 +205,7 @@ start.5: popl %ecx # Restore
start.6: addl $0x20,%edx # To next entry
loop start.4 # Till done
start.7: movl $m_done,%esi # Display done
- call putstr # message
+ call dputstr # message
movl $start.8,%esi # Real mode stub
movl $MEM_STUB,%edi # Destination
movl $SIZ_STUB,%ecx # Size
@@ -229,6 +229,10 @@ start.9:
#
# Output message [ESI] followed by EAX in hex.
#
+dhexout:
+#ifndef BTXLDR_VERBOSE
+ ret
+#endif
hexout: pushl %eax # Save
call putstr # Display message
popl %eax # Restore
@@ -254,6 +258,12 @@ hexout.2: decl %esi # Adjust for inc
#
# Output zero-terminated string [ESI] to the console.
#
+dputstr:
+#ifndef BTXLDR_VERBOSE
+ ret
+#else
+ jmp putstr
+#endif
putstr.0: call putchr # Output char
putstr: lodsb # Load char
testb %al,%al # End of string?
@@ -262,6 +272,10 @@ putstr: lodsb # Load char
#
# Output character AL to the console.
#
+dputchr:
+#ifndef BTXLDR_VERBOSE
+ ret
+#endif
putchr: pusha # Save
xorl %ecx,%ecx # Zero for loops
movb $SCR_MAT,%ah # Mode/attribute
@@ -337,7 +351,10 @@ gdtdesc: .word gdt.1-gdt-1 # Limit
#
# Messages.
#
-m_logo: .asciz "\nBTX loader 0.01\n"
+m_logo: .asciz "\nBTX loader 0.01 "
+m_vers: .asciz "BTX version is \0\n"
+e_fmt: .asciz "Error: Client format not supported\n"
+#ifdef BTXLDR_VERBOSE
m_mem: .asciz "Starting in protected mode (base mem=\0)\n"
m_esp: .asciz "Arguments passed (esp=\0):\n"
m_args: .asciz"<howto="
@@ -348,10 +365,8 @@ m_args: .asciz"<howto="
.asciz" bootinfo=\0>\n"
m_rel_bi: .asciz "Relocated bootinfo (size=48) to \0\n"
m_rel_args: .asciz "Relocated arguments (size=18) to \0\n"
-m_vers: .asciz "BTX version is \0\n"
m_rel_btx: .asciz "Relocated kernel (size=\0) to \0\n"
m_base: .asciz "Client base address is \0\n"
-e_fmt: .asciz "Error: Client format not supported\n"
m_elf: .asciz "Client format is ELF\n"
m_segs: .asciz "text segment: offset="
.asciz " vaddr="
@@ -362,6 +377,7 @@ m_segs: .asciz "text segment: offset="
.asciz " filesz="
.asciz " memsz=\0\n"
m_done: .asciz "Loading complete\n"
+#endif
#
# Uninitialized data area.
#
diff --git a/sys/boot/i386/btx/btxldr/btxldr.s b/sys/boot/i386/btx/btxldr/btxldr.s
index 7a6bd50..a3172e3 100644
--- a/sys/boot/i386/btx/btxldr/btxldr.s
+++ b/sys/boot/i386/btx/btxldr/btxldr.s
@@ -13,7 +13,7 @@
# purpose.
#
-# $Id: btxldr.s,v 1.2 1998/10/06 06:13:36 msmith Exp $
+# $Id: btxldr.s,v 1.3 1998/10/06 07:15:35 rnordier Exp $
#
# Prototype BTX loader program, written in a couple of hours. The
@@ -70,24 +70,24 @@ start: cld # String ops inc
shll $0xa,%eax # in bytes
movl %eax,%ebp # Base of user stack
movl $m_mem,%esi # Display
- call hexout # amount of
- call putstr # base memory
+ call dhexout # amount of
+ call dputstr # base memory
lgdt gdtdesc # Load new GDT
#
# Relocate caller's arguments.
#
movl $m_esp,%esi # Display
movl %esp,%eax # caller's
- call hexout # stack
- call putstr # pointer
+ call dhexout # stack
+ call dputstr # pointer
movl $m_args,%esi # Format string
leal 0x4(%esp,1),%ebx # First argument
movl $0x6,%ecx # Count
start.1: movl (%ebx),%eax # Get argument and
addl $0x4,%ebx # bump pointer
- call hexout # Display it
+ call dhexout # Display it
loop start.1 # Till done
- call putstr # End message
+ call dputstr # End message
movl $0x48,%ecx # Allocate space
subl %ecx,%ebp # for bootinfo
movl 0x18(%esp,1),%esi # Source
@@ -97,8 +97,8 @@ start.1: movl (%ebx),%eax # Get argument and
movl %ebp,0x18(%esp,1) # Update pointer
movl $m_rel_bi,%esi # Display
movl %ebp,%eax # bootinfo
- call hexout # relocation
- call putstr # message
+ call dhexout # relocation
+ call dputstr # message
movl $0x18,%ecx # Allocate space
subl %ecx,%ebp # for arguments
leal 0x4(%esp,1),%esi # Source
@@ -107,8 +107,8 @@ start.1: movl (%ebx),%eax # Get argument and
movsb # them
movl $m_rel_args,%esi # Display
movl %ebp,%eax # argument
- call hexout # relocation
- call putstr # message
+ call dhexout # relocation
+ call dputstr # message
#
# Set up BTX kernel.
#
@@ -145,16 +145,16 @@ start.1: movl (%ebx),%eax # Get argument and
movl %esi,%ebx # Keep place
movl $m_rel_btx,%esi # Restore
popl %eax # parameters
- call hexout # and
+ call dhexout # and
popl %ebp # display
movl %ebp,%eax # the
- call hexout # relocation
- call putstr # message
+ call dhexout # relocation
+ call dputstr # message
addl $PAG_SIZ,%ebp # Display
movl $m_base,%esi # the
movl %ebp,%eax # user
- call hexout # base
- call putstr # address
+ call dhexout # base
+ call dputstr # address
#
# Set up ELF-format client program.
#
@@ -164,7 +164,7 @@ start.1: movl (%ebx),%eax # Get argument and
call putstr # message
start.2: jmp start.2 # Hang
start.3: movl $m_elf,%esi # Display ELF
- call putstr # message
+ call dputstr # message
movl $m_segs,%esi # Format string
movl $0x2,%edi # Segment count
movl 0x1c(%ebx),%edx # Get e_phoff
@@ -173,14 +173,14 @@ start.3: movl $m_elf,%esi # Display ELF
start.4: cmpl $0x1,(%edx) # Is p_type PT_LOAD?
jne start.6 # No
movl 0x4(%edx),%eax # Display
- call hexout # p_offset
+ call dhexout # p_offset
movl 0x8(%edx),%eax # Display
- call hexout # p_vaddr
+ call dhexout # p_vaddr
movl 0x10(%edx),%eax # Display
- call hexout # p_filesz
+ call dhexout # p_filesz
movl 0x14(%edx),%eax # Display
- call hexout # p_memsz
- call putstr # End message
+ call dhexout # p_memsz
+ call dputstr # End message
pushl %esi # Save
pushl %edi # working
pushl %ecx # registers
@@ -205,7 +205,7 @@ start.5: popl %ecx # Restore
start.6: addl $0x20,%edx # To next entry
loop start.4 # Till done
start.7: movl $m_done,%esi # Display done
- call putstr # message
+ call dputstr # message
movl $start.8,%esi # Real mode stub
movl $MEM_STUB,%edi # Destination
movl $SIZ_STUB,%ecx # Size
@@ -229,6 +229,10 @@ start.9:
#
# Output message [ESI] followed by EAX in hex.
#
+dhexout:
+#ifndef BTXLDR_VERBOSE
+ ret
+#endif
hexout: pushl %eax # Save
call putstr # Display message
popl %eax # Restore
@@ -254,6 +258,12 @@ hexout.2: decl %esi # Adjust for inc
#
# Output zero-terminated string [ESI] to the console.
#
+dputstr:
+#ifndef BTXLDR_VERBOSE
+ ret
+#else
+ jmp putstr
+#endif
putstr.0: call putchr # Output char
putstr: lodsb # Load char
testb %al,%al # End of string?
@@ -262,6 +272,10 @@ putstr: lodsb # Load char
#
# Output character AL to the console.
#
+dputchr:
+#ifndef BTXLDR_VERBOSE
+ ret
+#endif
putchr: pusha # Save
xorl %ecx,%ecx # Zero for loops
movb $SCR_MAT,%ah # Mode/attribute
@@ -337,7 +351,10 @@ gdtdesc: .word gdt.1-gdt-1 # Limit
#
# Messages.
#
-m_logo: .asciz "\nBTX loader 0.01\n"
+m_logo: .asciz "\nBTX loader 0.01 "
+m_vers: .asciz "BTX version is \0\n"
+e_fmt: .asciz "Error: Client format not supported\n"
+#ifdef BTXLDR_VERBOSE
m_mem: .asciz "Starting in protected mode (base mem=\0)\n"
m_esp: .asciz "Arguments passed (esp=\0):\n"
m_args: .asciz"<howto="
@@ -348,10 +365,8 @@ m_args: .asciz"<howto="
.asciz" bootinfo=\0>\n"
m_rel_bi: .asciz "Relocated bootinfo (size=48) to \0\n"
m_rel_args: .asciz "Relocated arguments (size=18) to \0\n"
-m_vers: .asciz "BTX version is \0\n"
m_rel_btx: .asciz "Relocated kernel (size=\0) to \0\n"
m_base: .asciz "Client base address is \0\n"
-e_fmt: .asciz "Error: Client format not supported\n"
m_elf: .asciz "Client format is ELF\n"
m_segs: .asciz "text segment: offset="
.asciz " vaddr="
@@ -362,6 +377,7 @@ m_segs: .asciz "text segment: offset="
.asciz " filesz="
.asciz " memsz=\0\n"
m_done: .asciz "Loading complete\n"
+#endif
#
# Uninitialized data area.
#
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