mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-21 04:42:53 +08:00
fc497986a3
segment that has been aligned for relro. * output.cc (Output_segment::set_section_addresses): Change signature; adjust all callers. Account for alignment when totalling size of relro sections. * output.h (Output_segment::set_section_addresses): Change signature. * testsuite/Makefile.am (relro_test.sh, relro_test.stdout): New targets. * testsuite/Makefile.in: Regenerate. * testsuite/relro_test.cc: Add alignment attributes to test proper alignment of relro sections when padding is necessary. * testsuite/relro_test.sh: New script.
74 lines
2.2 KiB
Bash
Executable File
74 lines
2.2 KiB
Bash
Executable File
#!/bin/sh
|
|
|
|
# relro_test.sh -- test -z relro
|
|
|
|
# Copyright 2010 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" -ne 0
|
|
then
|
|
echo "PT_GNU_RELRO segment does not end at page boundary."
|
|
exit 1
|
|
fi
|
|
}
|
|
|
|
check relro_test.stdout
|