#!/bin/sh ### # @file # Shell script to assemble and dump the fake Int10h handler from NASM source to # a C array. # # Copyright (C) 2014, Red Hat, Inc. # Copyright (c) 2013 - 2014, 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 # http://opensource.org/licenses/bsd-license.php # # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT # WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. # ### set -e -u STEM=$(dirname -- "$0")/$(basename -- "$0" .sh) # # Install exit handler -- remove temporary files. # exit_handler() { rm -f -- "$STEM".bin "$STEM".disasm "$STEM".offsets "$STEM".insns \ "$STEM".bytes } trap exit_handler EXIT # # Assemble the source file. # nasm -o "$STEM".bin -- "$STEM".asm # # Disassemble it, in order to get a binary dump associated with the source. # (ndisasm doesn't recognize the "--" end-of-options delimiter.) # ndisasm "$STEM".bin >"$STEM".disasm # # Create three files, each with one column of the disassembly. # # The first column contains the offsets, and it starts the comment. # cut -c 1-8 -- "$STEM".disasm \ | sed -e 's,^, /* ,' >"$STEM".offsets # # The second column contains the assembly-language instructions, and it closes # the comment. We first pad it to 30 characters. # cut -c 29- -- "$STEM".disasm \ | sed -e 's,$, ,' \ -e 's,^\(.\{30\}\).*$,\1 */,' >"$STEM".insns # # The third column contains the bytes corresponding to the instruction, # represented as C integer constants. First strip trailing whitespace from the # middle column of the input disassembly, then process pairs of nibbles. # cut -c 11-28 -- "$STEM".disasm \ | sed -e 's, \+$,,' -e 's/\(..\)/ 0x\1,/g' >"$STEM".bytes # # Write the output file, recombining the columns. The output should have CRLF # line endings. # { printf '//\n' printf '// THIS FILE WAS GENERATED BY "%s". DO NOT EDIT.\n' \ "$(basename -- "$0")" printf '//\n' printf '#ifndef _VBE_SHIM_H_\n' printf '#define _VBE_SHIM_H_\n' printf 'STATIC CONST UINT8 mVbeShim[] = {\n' paste -d ' ' -- "$STEM".offsets "$STEM".insns "$STEM".bytes printf '};\n' printf '#endif\n' } \ | unix2dos >"$STEM".h