70 lines
2.0 KiB
Bash
70 lines
2.0 KiB
Bash
#!/bin/sh
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# Update abilist files based on differences on one architecture.
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# Copyright (C) 2015-2022 Free Software Foundation, Inc.
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# This file is part of the GNU C Library.
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#
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# The GNU C Library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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#
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# The GNU C Library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with the GNU C Library; if not, see
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# <https://www.gnu.org/licenses/>.
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set -e
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export LC_ALL=C
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if [ $# -lt 2 ]; then
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echo "usage: $0 OLD-FILE NEW-FILE FILES-TO-BE-PATCHED..." 1>&2
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exit 2
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elif [ $# -eq 2 ]; then
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echo "info: no files to patch" 1>&2
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exit 0
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fi
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old_file="$1"
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shift
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new_file="$1"
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shift
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tmp_old_sorted="$(mktemp)"
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tmp_new_sorted="$(mktemp)"
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tmp_new_symbols="$(mktemp)"
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tmp_patched="$(mktemp)"
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cleanup () {
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rm -f -- "$tmp_old_sorted" "$tmp_new_sorted" \
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"$tmp_new_symbols" "$tmp_patched"
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}
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trap cleanup 0
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sort -u -o "$tmp_old_sorted" -- "$old_file"
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sort -u -o "$tmp_new_sorted" -- "$new_file"
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# -1 skips symbols only in $old_file (deleted symbols).
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# -3 skips symbols in both files (unchanged symbols).
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comm -1 -3 "$tmp_old_sorted" "$tmp_new_sorted" > "$tmp_new_symbols"
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new_symbol_count="$(wc -l < "$tmp_new_symbols")"
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if [ "$new_symbol_count" -eq 0 ]; then
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echo "info: no symbols added" 1>&2
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exit 0
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fi
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echo "info: $new_symbol_count symbol(s) added" 1>&2
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for to_be_patched in "$@" ; do
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sort -u -o "$tmp_patched" -- "$to_be_patched" "$tmp_new_symbols"
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if ! cmp -s -- "$to_be_patched" "$tmp_patched"; then
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echo "info: updating $to_be_patched" 1>&2
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cp -- "$tmp_patched" "$to_be_patched"
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fi
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done
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