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mold/test/unresolved-symbols.sh
Rui Ueyama 9519e4ce20 Change how to handle --unresolved-symbols=ignore
Previously, we turned unresolved undefined symbols into dynamic
symbols. This patch changed the behavior so that such symbols
are turned into non-dynamic absolute symbols with value zero.

This change is needed by Gentoo's dev-libs/wayland-protocols-1.21
package.
2021-06-20 14:31:36 +09:00

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#!/bin/bash
set -e
cd $(dirname $0)
echo -n "Testing $(basename -s .sh $0) ... "
t=$(pwd)/tmp/$(basename -s .sh $0)
mkdir -p $t
cat <<EOF | cc -c -o $t/a.o -xc -
int foo();
int main() { foo(); }
EOF
cmd="clang -fuse-ld=`pwd`/../mold -o $t/exe $t/a.o"
! $cmd 2>&1 | grep -q 'undefined.*foo'
! $cmd -Wl,-unresolved-symbols=report-all 2>&1 | grep -q 'undefined.*foo'
$cmd -Wl,-unresolved-symbols=ignore-all
! readelf --dyn-syms $t/exe | grep -w foo || false
$cmd -Wl,-unresolved-symbols=report-all -Wl,--warn-unresolved-symbols 2>&1 | \
grep -q 'undefined.*foo'
! $cmd -Wl,-unresolved-symbols=ignore-in-object-files 2>&1 | grep -q 'undefined.*foo'
! $cmd -Wl,-unresolved-symbols=ignore-in-shared-libs 2>&1 | grep -q 'undefined.*foo'
echo OK