#!/bin/bash # Translate the bits making up a GFP mask # (c) 2009, Mel Gorman # Licensed under the terms of the GNU GPL License version 2 SOURCE= GFPMASK=none # Helper function to report failures and exit die() { echo ERROR: $@ if [ "$TMPFILE" != "" ]; then rm -f $TMPFILE fi exit -1 } usage() { echo "usage: gfp-translate [-h] [ --source DIRECTORY ] gfpmask" exit 0 } # Parse command-line arguments while [ $# -gt 0 ]; do case $1 in --source) SOURCE=$2 shift 2 ;; -h) usage ;; --help) usage ;; *) GFPMASK=$1 shift ;; esac done # Guess the kernel source directory if it's not set. Preference is in order of # o current directory # o /usr/src/linux if [ "$SOURCE" = "" ]; then if [ -r "/usr/src/linux/Makefile" ]; then SOURCE=/usr/src/linux fi if [ -r "`pwd`/Makefile" ]; then SOURCE=`pwd` fi fi # Confirm that a source directory exists if [ ! -r "$SOURCE/Makefile" ]; then die "Could not locate kernel source directory or it is invalid" fi # Confirm that a GFP mask has been specified if [ "$GFPMASK" = "none" ]; then usage fi # Extract GFP flags from the kernel source TMPFILE=`mktemp -t gfptranslate-XXXXXX` || exit 1 grep -q ___GFP $SOURCE/include/linux/gfp.h if [ $? -eq 0 ]; then grep "^#define ___GFP" $SOURCE/include/linux/gfp.h | sed -e 's/u$//' | grep -v GFP_BITS > $TMPFILE else grep "^#define __GFP" $SOURCE/include/linux/gfp.h | sed -e 's/(__force gfp_t)//' | sed -e 's/u)/)/' | grep -v GFP_BITS | sed -e 's/)\//) \//' > $TMPFILE fi # Parse the flags IFS=" " echo Source: $SOURCE echo Parsing: $GFPMASK for LINE in `cat $TMPFILE`; do MASK=`echo $LINE | awk '{print $3}'` if [ $(($GFPMASK&$MASK)) -ne 0 ]; then echo $LINE fi done rm -f $TMPFILE exit 0 x/net-next.git/log/tools/lib/bpf/libbpf.c?h=nds-private-remove'>logtree commit diff

path: root/tools/lib/bpf/libbpf.c

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