| #!/bin/bash |
| # |
| # Copyright 2012 The Chromium Authors |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| # This script is used to compare vpx_config.h and vpx_config.asm to |
| # verify the two files match. |
| # |
| # Arguments: |
| # |
| # -h - C Header file. |
| # -a - ASM file. |
| # -p - Print the options if correct. |
| # -o - Output file. |
| # |
| # Usage: |
| # |
| # # Compare the two configuration files and output the final results. |
| # ./lint_config.sh -h vpx_config.h -a vpx_config.asm -o libvpx.config -p |
| |
| set -e |
| |
| export LC_ALL=C |
| print_final="no" |
| |
| while getopts "h:a:o:p" flag; do |
| if [[ "$flag" == "h" ]]; then |
| header_file=$OPTARG |
| elif [[ "$flag" == "a" ]]; then |
| asm_file=$OPTARG |
| elif [[ "$flag" == "o" ]]; then |
| out_file=$OPTARG |
| elif [[ "$flag" == "p" ]]; then |
| print_final="yes" |
| fi |
| done |
| |
| if [[ -z "$header_file" ]]; then |
| echo "Header file not specified." |
| exit 1 |
| fi |
| |
| if [[ -z "$asm_file" ]]; then |
| echo "ASM file not specified." |
| exit 1 |
| fi |
| |
| # Concat header file and assembly file and select those ended with 0 or 1. |
| combined_config="$(cat $header_file $asm_file | grep -E ' +[01] *$')" |
| |
| # Extra filtering for known exceptions. |
| combined_config="$(echo "$combined_config" | grep -v WIDE_REFERENCE)" |
| combined_config="$(echo "$combined_config" | grep -v ARCHITECTURE)" |
| combined_config="$(echo "$combined_config" | grep -v DO1STROUNDING)" |
| |
| # Remove all spaces. |
| combined_config="$(echo "$combined_config" | sed 's/[[:space:]]//g')" |
| |
| # Remove #define in the header file. |
| combined_config="$(echo "$combined_config" | sed 's/.*define//')" |
| |
| # Remove equ in the ASM file. |
| combined_config="$(echo "$combined_config" | sed 's/\.equ//')" # gas style |
| combined_config="$(echo "$combined_config" | sed 's/equ//')" # rvds style |
| combined_config="$(echo "$combined_config" | sed 's/\.set//')" # apple style |
| |
| # Remove %define in YASM ASM files. |
| combined_config="$(echo "$combined_config" | sed 's/%define[[:space:]]*//')" |
| |
| # Remove useless comma in gas style assembly file. |
| combined_config="$(echo "$combined_config" | sed 's/,//')" |
| |
| # Substitute 0 with =no. |
| combined_config="$(echo "$combined_config" | sed 's/0$/=no/')" |
| |
| # Substitute 1 with =yes. |
| combined_config="$(echo "$combined_config" | sed 's/1$/=yes/')" |
| |
| # Find the mismatch variables. |
| odd_config="$(echo "$combined_config" | sort | uniq -u)" |
| odd_vars="$(echo "$odd_config" | sed 's/=.*//' | uniq)" |
| |
| for var in $odd_vars; do |
| echo "Error: Configuration mismatch for $var." |
| echo "Header file: $header_file" |
| echo "$(cat -n $header_file | grep "$var[ \t]")" |
| echo "Assembly file: $asm_file" |
| echo "$(cat -n $asm_file | grep "$var[ \t]")" |
| echo "" |
| done |
| |
| if [[ -n "$odd_vars" ]]; then |
| exit 1 |
| fi |
| |
| if [[ "$print_final" == "no" ]]; then |
| exit |
| fi |
| |
| # Do some additional filter to make libvpx happy. |
| combined_config="$(echo "$combined_config" | grep -v ARCH_X86=no)" |
| combined_config="$(echo "$combined_config" | grep -v ARCH_X86_64=no)" |
| |
| # Print out the unique configurations. |
| if [[ -n "$out_file" ]]; then |
| echo "$combined_config" | sort | uniq > $out_file |
| else |
| echo "$combined_config" | sort | uniq |
| fi |