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