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mold/test/start-stop-symbol.sh
Rui Ueyama 725834e0b1 Do not garbage-collect C-identifer sections
This is needed for Gentoo's sys-fs/udev-245.5-r1 package.
2021-06-18 12:57:12 +09:00

40 lines
713 B
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' | clang -c -o $t/a.o -x assembler -
.section foo,"a",@progbits
.ascii "section foo"
.text
.globl bar
bar:
mov $3, %eax
ret
EOF
ar rcs $t/b.a $t/a.o
cat <<EOF | clang -c -o $t/c.o -xc -
#include <stdio.h>
extern char __start_foo[];
extern char __stop_foo[];
int bar();
int main() {
printf("%.*s %d\n", (int)(__stop_foo - __start_foo), __start_foo, bar());
}
EOF
clang -fuse-ld=`pwd`/../mold -o $t/exe $t/c.o $t/b.a
$t/exe | grep -q 'section foo 3'
clang -fuse-ld=`pwd`/../mold -o $t/exe $t/c.o $t/b.a -Wl,-gc-sections
$t/exe | grep -q 'section foo 3'
echo OK