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[/] [open8_urisc/] [trunk/] [gnu/] [binutils/] [gold/] [testsuite/] [relro_test.sh] - Rev 97
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#!/bin/sh # relro_test.sh -- test -z relro # Copyright 2010, 2011 Free Software Foundation, Inc. # Written by Cary Coutant <ccoutant@google.com>. # This file is part of gold. # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 3 of the License, or # (at your option) any later version. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, # MA 02110-1301, USA. # This test checks that the PT_GNU_RELRO segment is properly # aligned and is coincident with the beginning of the data segment. # Cleans a hexadecimal number for input to dc. clean_hex() { echo "$1" | sed -e 's/0x//' -e 'y/abcdef/ABCDEF/' } check() { # Get the address and length of the PT_GNU_RELRO segment. RELRO_START=`grep GNU_RELRO "$1" | awk '{ print $3; }'` RELRO_LEN=`grep GNU_RELRO "$1" | awk '{ print $6; }'` if test -z "$RELRO_START" then echo "Did not find a PT_GNU_RELRO segment." exit 1 fi # Get the address and alignment of the PT_LOAD segment whose address # matches the PT_GNU_RELRO segment. LOAD_ALIGN=`grep LOAD "$1" | awk -v A=$RELRO_START '$3 == A { print $NF; }'` LOAD_LEN=`grep LOAD "$1" | awk -v A=$RELRO_START '$3 == A { print $6; }'` if test -z "$LOAD_LEN" then echo "Did not find a PT_LOAD segment matching the PT_GNU_RELRO segment." exit 1 fi # Compute the address of the end of the PT_GNU_RELRO segment, # modulo the alignment of the PT_LOAD segment. RELRO_START=`clean_hex "$RELRO_START"` RELRO_LEN=`clean_hex "$RELRO_LEN"` LOAD_ALIGN=`clean_hex "$LOAD_ALIGN"` RELRO_END=`echo "16o 16i $RELRO_START $RELRO_LEN + p" | dc` REM=`echo "16i $RELRO_END $LOAD_ALIGN % p" | dc` if test "$REM" -eq 0; then : else echo "PT_GNU_RELRO segment does not end at page boundary." exit 1 fi } check relro_test.stdout
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