mold/test/elf/undefined.sh

#!/bin/bash
export LC_ALL=C
set -e
CC="${TEST_CC:-cc}"
CXX="${TEST_CXX:-c++}"
GCC="${TEST_GCC:-gcc}"
GXX="${TEST_GXX:-g++}"
OBJDUMP="${OBJDUMP:-objdump}"
MACHINE="${MACHINE:-$(uname -m)}"
testname=$(basename "$0" .sh)
echo -n "Testing $testname ... "
t=out/test/elf/$MACHINE/$testname
mkdir -p $t

echo 'int main() {}' | $CC -o /dev/null -xc - -static >& /dev/null || \
  { echo skipped; exit; }

cat <<EOF | $CC -o $t/a.o -c -x assembler -
.globl _start
_start:
EOF

cat <<EOF | $CC -o $t/b.o -c -x assembler -
.globl foo
foo:
EOF

cat <<EOF | $CC -o $t/c.o -c -x assembler -
.globl bar
bar:
EOF

rm -f $t/d.a
ar cr $t/d.a $t/b.o $t/c.o

./mold -static -o $t/exe $t/a.o $t/d.a
readelf --symbols $t/exe > $t/log
! grep -q foo $t/log || false
! grep -q bar $t/log || false

./mold -static -o $t/exe $t/a.o $t/d.a -u foo
readelf --symbols $t/exe > $t/log
grep -q foo $t/log
! grep -q bar $t/log || false

./mold -static -o $t/exe $t/a.o $t/d.a -u foo --undefined=bar
readelf --symbols $t/exe > $t/log
grep -q foo $t/log
grep -q bar $t/log

echo OK