1# 2# Copyright (c) 1999 Global Technology Associates, Inc. 3# All rights reserved. 4# 5# Redistribution and use in source and binary forms, with or without 6# modification, are permitted provided that the following conditions 7# are met: 8# 1. Redistributions of source code must retain the above copyright 9# notice, this list of conditions and the following disclaimer. 10# 2. Redistributions in binary form must reproduce the above copyright 11# notice, this list of conditions and the following disclaimer in the 12# documentation and/or other materials provided with the distribution. 13# 14# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS``AS IS'' AND 15# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 17# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS 18# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, 19# OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 20# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 21# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 22# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 23# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 24# EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25# 26# $FreeBSD$ 27# 28 29 .set entry,0x10 # kgz.entry 30 31 .globl _start 32 33# C startup code for kgzldr. 34 35_start: cld # String ops inc 36 movl $_edata,%edi # Start of bss 37 movl $_end,%ecx # Compute 38 subl %edi,%ecx # size 39 xorl %eax,%eax # Zero 40 rep # Clear 41 stosb # bss 42 pushl 0x4(%esp) # Pass howto flags 43 call boot # Call C code 44 popl %ecx # Clear stack 45 jmp *kgz+entry # To loaded code 46