old-cross-binutils/ld/testsuite/ld-xtensa/diff_overflow.exp
Volodymyr Arbatov 1058c7532d Use signed data type for R_XTENSA_DIFF* relocation offsets.
R_XTENSA_DIFF relocation offsets are in fact signed. Treat them as such.
Add testcase that examines ld behaviour on R_XTENSA_DIFF relocation
changing sign during relaxation.

2014-05-02  Volodymyr Arbatov  <arbatov@cadence.com>
	    David Weatherford  <weath@cadence.com>
	    Max Filippov  <jcmvbkbc@gmail.com>

bfd/
  * elf32-xtensa.c (relax_section): treat R_XTENSA_DIFF* relocations as
  signed.

gas/
  * config/tc-xtensa.c (md_apply_fix): mark BFD_RELOC_XTENSA_DIFF*
  fixups as signed.

ld/testsuite/
  * ld-xtensa/diff_overflow.exp, * ld-xtensa/diff_overflow1.s,
  * ld-xtensa/diff_overflow2.s: Add test for DIFF* relocation
  signedness and overflow checking.
2014-05-08 01:55:41 +04:00

45 lines
1.4 KiB
Text

# Test DIFF* relocation signedness and overflow checking
# By Max Filippov, Cadence Design Systems, Inc.
# Copyright (C) 2014 Free Software Foundation, Inc.
#
# This file is part of the GNU Binutils.
#
# 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.
if ![istarget "xtensa*-*-*"] {
return
}
set testname "DIFF_OVERFLOW"
if ![ld_assemble $as "--text-section-literals $srcdir/$subdir/diff_overflow1.s" tmpdir/diff_overflow1.o] {
unresolved $testname
return
}
if ![ld_assemble $as "--text-section-literals $srcdir/$subdir/diff_overflow2.s" tmpdir/diff_overflow2.o] {
unresolved $testname
return
}
set object "tmpdir/diff_overflow"
if ![ld_simple_link $ld $object "tmpdir/diff_overflow1.o tmpdir/diff_overflow2.o"] {
verbose -log "failure in ld"
fail $testname
return
}
pass $testname