diff options
author | msmith <msmith@FreeBSD.org> | 1998-10-30 00:11:35 +0000 |
---|---|---|
committer | msmith <msmith@FreeBSD.org> | 1998-10-30 00:11:35 +0000 |
commit | b7cb0214c9d1d58dee92583d1e51ce096bf6c0e9 (patch) | |
tree | ebd4e08fbcda479caceecde741ead2710e64e01a /sys/boot/i386/btx | |
parent | 88e66bf771b4877931fd58ad525072c9c4e1fc4c (diff) | |
download | FreeBSD-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/Makefile | 5 | ||||
-rw-r--r-- | sys/boot/i386/btx/btxldr/btxldr.S | 68 | ||||
-rw-r--r-- | sys/boot/i386/btx/btxldr/btxldr.s | 68 |
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. # |