2 # Make sure no code in ld.so uses xmm/ymm registers on x86-64.
3 # Copyright (C) 2009 Free Software Foundation, Inc.
4 # This file is part of the GNU C Library.
6 # The GNU C Library is free software; you can redistribute it and/or
7 # modify it under the terms of the GNU Lesser General Public
8 # License as published by the Free Software Foundation; either
9 # version 2.1 of the License, or (at your option) any later version.
11 # The GNU C Library is distributed in the hope that it will be useful,
12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 # Lesser General Public License for more details.
16 # You should have received a copy of the GNU Lesser General Public
17 # License along with the GNU C Library; if not, see
18 # <http://www.gnu.org/licenses/>.
22 tmp=$(mktemp ${objpfx}tst-xmmymm.XXXXXX)
23 trap 'rm -f "$tmp"' 1 2 3 15
25 # List of object files we have to test
26 rtldobjs=$(readelf -W -wi ${objpfx}dl-allobjs.os |
27 awk '/^ </ { if ($5 == "(DW_TAG_compile_unit)") c=1; else c=0 } $2 == "DW_AT_name" { if (c == 1) print $NF }' |
28 sed 's,\(.*/\|\)\([_[:alnum:]-]*[.]\).$,\2os,')
29 rtldobjs="$rtldobjs $(ar t ${objpfx}rtld-libc.a)"
31 # OBJECT symbols can be ignored.
32 readelf -sW ${objpfx}dl-allobjs.os ${objpfx}rtld-libc.a |
33 egrep " OBJECT *GLOBAL " |
34 awk '{if ($7 != "ABS") print $8 }' |
37 objects=($(cat "$tmp"))
40 tocheck="dl-runtime.os"
42 while test -n "$objs"; do
47 undef=$(nm -u "$objpfx"../*/"$f" | awk '{print $2}')
48 if test -n "$undef"; then
50 for obj in ${objects[*]} "_GLOBAL_OFFSET_TABLE_"; do
51 if test "$obj" = "$s"; then
55 for o in $rtldobjs; do
56 ro=$(echo "$objpfx"../*/"$o")
57 if nm -g --defined-only "$ro" | egrep -qs " $s\$"; then
58 if ! (echo "$tocheck $objs" | fgrep -qs "$o"); then
59 echo "$o needed for $s"
68 tocheck="$tocheck$objs"
73 echo "object files needed: $tocheck"
77 objdump -d "$objpfx"../*/"$f" |
78 awk 'BEGIN { last="" } /^[[:xdigit:]]* <[_[:alnum:]]*>:$/ { fct=substr($2, 2, length($2)-3) } /,%[xy]mm[[:digit:]]*$/ { if (last != fct) { print fct; last=fct} }' |
80 if test "$fct" = "_dl_runtime_profile" -o "$fct" = "_dl_x86_64_restore_sse"; then
83 echo "function $fct in $f modifies xmm/ymm" >> "$tmp"
88 if test -s "$tmp"; then