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mold/test/copyrel-relro.sh
2021-07-21 16:27:29 +09:00

30 lines
621 B
Bash
Executable File

#!/bin/bash
set -e
cd $(dirname $0)
mold=`pwd`/../mold
echo -n "Testing $(basename -s .sh $0) ... "
t=$(pwd)/tmp/$(basename -s .sh $0)
mkdir -p $t
cat <<EOF | cc -o $t/a.o -c -xc -fno-PIE -
extern const char readonly[100];
extern char readwrite[100];
int main() {
return readonly[0] + readwrite[0];
}
EOF
cat <<EOF | cc -shared -o $t/b.so -xc -
const char readonly[100] = "abc";
char readwrite[100] = "abc";
EOF
clang -fuse-ld=$mold $t/a.o $t/b.so -o $t/exe
readelf -a $t/exe > $t/log
grep -Pqz '(?s)\[(\d+)\] .dynbss.rel.ro .* \1 readonly' $t/log
grep -Pqz '(?s)\[(\d+)\] .dynbss .* \1 readwrite' $t/log
echo OK