文件操作 - gcc-version.sh
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文件: /usr/src/kernels/4.18.0-553.124.4.el8_10.x86_64/scripts/gcc-version.sh
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#!/bin/sh # SPDX-License-Identifier: GPL-2.0 # # gcc-version [-p] gcc-command # # Prints the gcc version of `gcc-command' in a canonical 4-digit form # such as `0295' for gcc-2.95, `0303' for gcc-3.3, etc. # # With the -p option, prints the patchlevel as well, for example `029503' for # gcc-2.95.3, `030301' for gcc-3.3.1, etc. # if [ "$1" = "-p" ] ; then with_patchlevel=1; shift; fi compiler="$*" if [ ${#compiler} -eq 0 ]; then echo "Error: No compiler specified." printf "Usage:\n\t$0 <gcc-command>\n" exit 1 fi MAJOR=$(echo __GNUC__ | $compiler -E -x c - | tail -n 1) MINOR=$(echo __GNUC_MINOR__ | $compiler -E -x c - | tail -n 1) if [ "x$with_patchlevel" != "x" ] ; then PATCHLEVEL=$(echo __GNUC_PATCHLEVEL__ | $compiler -E -x c - | tail -n 1) printf "%02d%02d%02d\\n" $MAJOR $MINOR $PATCHLEVEL else printf "%02d%02d\\n" $MAJOR $MINOR fi
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