mold/test/elf/unique.sh

#!/bin/bash
export LANG=
set -e
testname=$(basename -s .sh "$0")
echo -n "Testing $testname ... "
cd "$(dirname "$0")"/../..
mold="$(pwd)/mold"
t="$(pwd)/out/test/elf/$testname"
mkdir -p "$t"

cat <<EOF | cc -c -o "$t"/a.o -x assembler -
.section .data.foo.1,"aw",@progbits
.ascii "a"
.section .data.foo.1,"aw",@progbits
.ascii "b"
.section .data.foo.2,"aw",@progbits
.ascii "c"
.section .data.bar.1,"aw",@progbits
.ascii "d"
.section .data.bar.2,"aw",@progbits
.ascii "e"
.text
.globl _start
_start:
  nop
EOF

clang -fuse-ld="$mold" -o "$t"/exe "$t"/a.o -nostdlib -Wl,-unique='*foo*'

readelf -x .data.foo.1 "$t"/exe | grep -q ab
readelf -x .data.foo.2 "$t"/exe | grep -q c
readelf -x .data "$t"/exe | grep -q de

echo OK