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mold/test/symbol-version.sh
Rui Ueyama ed98211a24 Allow to refer unversioned symbol within an object file
Previously, mold couldn't handle an object file which contains
versioned symbol `foo@@SOME_VERSION` that also has an undefined
symbol `foo`. Now, `foo` is resolved to `foo@@SOME_VERSION`.

This change is required to build Gentoo's media-libs/alsa-lib-1.2.3.2-r1
package.
2021-05-30 18:03:21 +09:00

33 lines
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Executable File

#!/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 | clang -fPIC -c -o $t/a.o -xc -
void foo1() {}
void foo2() {}
void foo3() {}
__asm__(".symver foo1, foo@VER1");
__asm__(".symver foo2, foo@VER2");
__asm__(".symver foo3, foo@@VER3");
void foo();
void bar() {
foo();
}
EOF
echo 'VER1 { local: *; }; VER2 { local: *; }; VER3 { local: *; };' > $t/b.ver
clang -fuse-ld=`pwd`/../mold -shared -o $t/c.so $t/a.o -Wl,--version-script=$t/b.ver
readelf --symbols $t/c.so > $t/log
fgrep -q 'foo@VER1' $t/log
fgrep -q 'foo@VER2' $t/log
fgrep -q 'foo@@VER3' $t/log
echo OK