float128: Add public _Float128 declarations to libm.
[glibc.git] / sysdeps / i386 / tst-ld-sse-use.sh
blob83a1dc59fb5a66cf17731f57d0487dd30692f737
1 #!/bin/bash
2 # Make sure no code in ld.so uses xmm/ymm/zmm registers on i386.
3 # Copyright (C) 2009-2017 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/>.
20 set -e
22 objpfx="$1"
23 NM="$2"
24 OBJDUMP="$3"
25 READELF="$4"
27 tmp=$(mktemp ${objpfx}tst-ld-sse-use.XXXXXX)
28 trap 'rm -f "$tmp"' 1 2 3 15
30 # List of object files we have to test
31 rtldobjs=$($READELF -W -wi ${objpfx}dl-allobjs.os |
32 awk '/^ </ { if ($5 == "(DW_TAG_compile_unit)") c=1; else c=0 } $2 == "DW_AT_name" { if (c == 1) print $NF }' |
33 sed 's,\(.*/\|\)\([_[:alnum:]-]*[.]\).$,\2os,')
34 rtldobjs="$rtldobjs $(ar t ${objpfx}rtld-libc.a)"
36 # OBJECT symbols can be ignored.
37 $READELF -sW ${objpfx}dl-allobjs.os ${objpfx}rtld-libc.a |
38 egrep " OBJECT *GLOBAL " |
39 awk '{if ($7 != "ABS") print $8 }' |
40 sort -u > "$tmp"
41 declare -a objects
42 objects=($(cat "$tmp"))
44 objs="dl-runtime.os"
45 tocheck="dl-runtime.os"
47 while test -n "$objs"; do
48 this="$objs"
49 objs=""
51 for f in $this; do
52 undef=$($NM -u "$objpfx"../*/"$f" | awk '{print $2}')
53 if test -n "$undef"; then
54 for s in $undef; do
55 for obj in ${objects[*]} "_GLOBAL_OFFSET_TABLE_"; do
56 if test "$obj" = "$s"; then
57 continue 2
59 done
60 for o in $rtldobjs; do
61 ro=$(echo "$objpfx"../*/"$o")
62 if $NM -g --defined-only "$ro" | egrep -qs " $s\$"; then
63 if ! (echo "$tocheck $objs" | fgrep -qs "$o"); then
64 echo "$o needed for $s"
65 objs="$objs $o"
67 break;
69 done
70 done
72 done
73 tocheck="$tocheck$objs"
74 done
76 echo
77 echo
78 echo "object files needed: $tocheck"
80 cp /dev/null "$tmp"
81 for f in $tocheck; do
82 $OBJDUMP -d "$objpfx"../*/"$f" |
83 awk 'BEGIN { last="" } /^[[:xdigit:]]* <[_[:alnum:]]*>:$/ { fct=substr($2, 2, length($2)-3) } /,%[xyz]mm[[:digit:]]*$/ { if (last != fct) { print fct; last=fct} }' |
84 while read fct; do
85 if test "$fct" = "_dl_runtime_profile" -o "$fct" = "_dl_x86_64_restore_sse"; then
86 continue;
88 echo "function $fct in $f modifies xmm/ymm/zmm" >> "$tmp"
89 result=1
90 done
91 done
93 if test -s "$tmp"; then
94 echo
95 echo
96 cat "$tmp"
97 result=1
98 else
99 result=0
102 rm "$tmp"
103 exit $result