1
1
mirror of https://github.com/rui314/mold.git synced 2024-12-24 00:43:18 +03:00
mold/test/gc-sections.sh
Rui Ueyama 8c4c17dc77 wip
2021-04-11 14:13:55 +09:00

56 lines
1.2 KiB
Bash
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 > $t/a.cc
#include <stdio.h>
int two() { return 2; }
int live_var1 = 1;
int live_var2 = two();
int dead_var1 = 3;
int dead_var2 = 4;
void live_fn1() {}
void live_fn2() { live_fn1(); }
void dead_fn1() {}
void dead_fn2() { dead_fn1(); }
int main() {
printf("%d %d\n", live_var1, live_var2);
live_fn2();
}
EOF
cflags="-ffunction-sections -fdata-sections -fuse-ld=`pwd`/../mold"
clang++ -o $t/exe1 $t/a.cc $cflags
readelf --symbols $t/exe1 > $t/log.1
grep -qv live_fn1 $t/log.1
grep -qv live_fn2 $t/log.1
grep -qv dead_fn1 $t/log.1
grep -qv dead_fn2 $t/log.1
grep -qv live_var1 $t/log.1
grep -qv live_var2 $t/log.1
grep -qv dead_var1 $t/log.1
grep -qv dead_var2 $t/log.1
$t/exe1 | grep -q '1 2'
clang++ -o $t/exe2 $t/a.cc $cflags -Wl,-gc-sections
readelf --symbols $t/exe2 > $t/log.2
grep -q live_fn1 $t/log.2
grep -q live_fn2 $t/log.2
grep -qv dead_fn1 $t/log.2
grep -qv dead_fn2 $t/log.2
grep -q live_var1 $t/log.2
grep -q live_var2 $t/log.2
grep -qv dead_var1 $t/log.2
grep -qv dead_var2 $t/log.2
$t/exe2 | grep -q '1 2'
echo OK