projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 90803342 LE |
1 | #!/bin/sh |
| 2 | ### | |
| 3 | # @file | |
| 4 | # Shell script to assemble and dump the fake Int10h handler from NASM source to | |
| 5 | # a C array. | |
| 6 | # | |
| 7 | # Copyright (C) 2014, Red Hat, Inc. | |
| 8 | # Copyright (c) 2013 - 2014, Intel Corporation. All rights reserved.<BR> | |
| 9 | # | |
| b26f0cf9 | 10 | # SPDX-License-Identifier: BSD-2-Clause-Patent |
| 90803342 LE |
11 | # |
| 12 | ### | |
| 13 | ||
| 14 | set -e -u | |
| 15 | ||
| 16 | STEM=$(dirname -- "$0")/$(basename -- "$0" .sh) | |
| 17 | ||
| 18 | # | |
| 19 | # Install exit handler -- remove temporary files. | |
| 20 | # | |
| 21 | exit_handler() | |
| 22 | { | |
| 23 | rm -f -- "$STEM".bin "$STEM".disasm "$STEM".offsets "$STEM".insns \ | |
| 24 | "$STEM".bytes | |
| 25 | } | |
| 26 | trap exit_handler EXIT | |
| 27 | ||
| 28 | # | |
| 29 | # Assemble the source file. | |
| 12e4043b LE |
30 | # (nasm doesn't recognize the "--" end-of-options delimiter; |
| 31 | # <https://bugzilla.nasm.us/show_bug.cgi?id=3392829>.) | |
| 90803342 | 32 | # |
| 12e4043b | 33 | nasm -o "$STEM".bin "$STEM".asm |
| 90803342 LE |
34 | |
| 35 | # | |
| 36 | # Disassemble it, in order to get a binary dump associated with the source. | |
| 12e4043b LE |
37 | # (ndisasm doesn't recognize the "--" end-of-options delimiter; |
| 38 | # <https://bugzilla.nasm.us/show_bug.cgi?id=3392829>.) | |
| 90803342 LE |
39 | # |
| 40 | ndisasm "$STEM".bin >"$STEM".disasm | |
| 41 | ||
| 42 | # | |
| 43 | # Create three files, each with one column of the disassembly. | |
| 44 | # | |
| 45 | # The first column contains the offsets, and it starts the comment. | |
| 46 | # | |
| 47 | cut -c 1-8 -- "$STEM".disasm \ | |
| 48 | | sed -e 's,^, /* ,' >"$STEM".offsets | |
| 49 | ||
| 50 | # | |
| 51 | # The second column contains the assembly-language instructions, and it closes | |
| 52 | # the comment. We first pad it to 30 characters. | |
| 53 | # | |
| 54 | cut -c 29- -- "$STEM".disasm \ | |
| 55 | | sed -e 's,$, ,' \ | |
| 56 | -e 's,^\(.\{30\}\).*$,\1 */,' >"$STEM".insns | |
| 57 | ||
| 58 | # | |
| 59 | # The third column contains the bytes corresponding to the instruction, | |
| 60 | # represented as C integer constants. First strip trailing whitespace from the | |
| 61 | # middle column of the input disassembly, then process pairs of nibbles. | |
| 62 | # | |
| 63 | cut -c 11-28 -- "$STEM".disasm \ | |
| 64 | | sed -e 's, \+$,,' -e 's/\(..\)/ 0x\1,/g' >"$STEM".bytes | |
| 65 | ||
| 66 | # | |
| 67 | # Write the output file, recombining the columns. The output should have CRLF | |
| 68 | # line endings. | |
| 69 | # | |
| 70 | { | |
| 71 | printf '//\n' | |
| 72 | printf '// THIS FILE WAS GENERATED BY "%s". DO NOT EDIT.\n' \ | |
| 73 | "$(basename -- "$0")" | |
| 74 | printf '//\n' | |
| 75 | printf '#ifndef _VBE_SHIM_H_\n' | |
| 76 | printf '#define _VBE_SHIM_H_\n' | |
| 77 | printf 'STATIC CONST UINT8 mVbeShim[] = {\n' | |
| 78 | paste -d ' ' -- "$STEM".offsets "$STEM".insns "$STEM".bytes | |
| 79 | printf '};\n' | |
| 80 | printf '#endif\n' | |
| 81 | } \ | |
| 82 | | unix2dos >"$STEM".h |