Vignesh Venkatasubramanian | da49e34 | 2015-08-25 11:05:01 -0700 | [diff] [blame] | 1 | #!/bin/bash -e |
| 2 | # |
| 3 | # Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 4 | # Use of this source code is governed by a BSD-style license that can be |
| 5 | # found in the LICENSE file. |
| 6 | |
| 7 | # This script is used to compare vpx_config.h and vpx_config.asm to |
| 8 | # verify the two files match. |
| 9 | # |
| 10 | # Arguments: |
| 11 | # |
| 12 | # -h - C Header file. |
| 13 | # -a - ASM file. |
| 14 | # -p - Print the options if correct. |
| 15 | # -o - Output file. |
| 16 | # |
| 17 | # Usage: |
| 18 | # |
| 19 | # # Compare the two configuration files and output the final results. |
| 20 | # ./lint_config.sh -h vpx_config.h -a vpx_config.asm -o libvpx.config -p |
| 21 | |
| 22 | export LC_ALL=C |
| 23 | print_final="no" |
| 24 | |
| 25 | while getopts "h:a:o:p" flag |
| 26 | do |
| 27 | if [ "$flag" = "h" ]; then |
| 28 | header_file=$OPTARG |
| 29 | elif [ "$flag" = "a" ]; then |
| 30 | asm_file=$OPTARG |
| 31 | elif [ "$flag" = "o" ]; then |
| 32 | out_file=$OPTARG |
| 33 | elif [ "$flag" = "p" ]; then |
| 34 | print_final="yes" |
| 35 | fi |
| 36 | done |
| 37 | |
| 38 | if [ -z "$header_file" ]; then |
| 39 | echo "Header file not specified." |
| 40 | false |
| 41 | exit |
| 42 | fi |
| 43 | |
| 44 | if [ -z "$asm_file" ]; then |
| 45 | echo "ASM file not specified." |
| 46 | false |
| 47 | exit |
| 48 | fi |
| 49 | |
| 50 | # Concat header file and assembly file and select those ended with 0 or 1. |
| 51 | combined_config="$(cat $header_file $asm_file | grep -E ' +[01] *$')" |
| 52 | |
| 53 | # Extra filtering for known exceptions. |
| 54 | combined_config="$(echo "$combined_config" | grep -v DO1STROUNDING)" |
| 55 | |
| 56 | # Remove all spaces. |
| 57 | combined_config="$(echo "$combined_config" | sed 's/[ \t]//g')" |
| 58 | |
| 59 | # Remove #define in the header file. |
| 60 | combined_config="$(echo "$combined_config" | sed 's/.*define//')" |
| 61 | |
| 62 | # Remove equ in the ASM file. |
| 63 | combined_config="$(echo "$combined_config" | sed 's/\.equ//')" # gas style |
| 64 | combined_config="$(echo "$combined_config" | sed 's/equ//')" # rvds style |
| 65 | |
| 66 | # Remove %define in YASM ASM files. |
| 67 | combined_config="$(echo "$combined_config" | sed 's/%define\s *//')" # yasm style |
| 68 | |
| 69 | # Remove useless comma in gas style assembly file. |
| 70 | combined_config="$(echo "$combined_config" | sed 's/,//')" |
| 71 | |
| 72 | # Substitute 0 with =no. |
| 73 | combined_config="$(echo "$combined_config" | sed 's/0$/=no/')" |
| 74 | |
| 75 | # Substitute 1 with =yes. |
| 76 | combined_config="$(echo "$combined_config" | sed 's/1$/=yes/')" |
| 77 | |
| 78 | # Find the mismatch variables. |
| 79 | odd_config="$(echo "$combined_config" | sort | uniq -u)" |
| 80 | odd_vars="$(echo "$odd_config" | sed 's/=.*//' | uniq)" |
| 81 | |
| 82 | for var in $odd_vars; do |
| 83 | echo "Error: Configuration mismatch for $var." |
| 84 | echo "Header file: $header_file" |
| 85 | echo "$(cat -n $header_file | grep "$var[ \t]")" |
| 86 | echo "Assembly file: $asm_file" |
| 87 | echo "$(cat -n $asm_file | grep "$var[ \t]")" |
| 88 | echo "" |
| 89 | done |
| 90 | |
| 91 | if [ -n "$odd_vars" ]; then |
| 92 | false |
| 93 | exit |
| 94 | fi |
| 95 | |
| 96 | if [ "$print_final" = "no" ]; then |
| 97 | exit |
| 98 | fi |
| 99 | |
| 100 | # Do some additional filter to make libvpx happy. |
| 101 | combined_config="$(echo "$combined_config" | grep -v ARCH_X86=no)" |
| 102 | combined_config="$(echo "$combined_config" | grep -v ARCH_X86_64=no)" |
| 103 | |
| 104 | # Print out the unique configurations. |
| 105 | if [ -n "$out_file" ]; then |
| 106 | echo "$combined_config" | sort | uniq > $out_file |
| 107 | else |
| 108 | echo "$combined_config" | sort | uniq |
| 109 | fi |