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mold/test/elf/glibc-2.22-bug.sh
2022-05-09 13:56:48 +08:00

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#!/bin/bash
export LC_ALL=C
set -e
CC="${CC:-cc}"
CXX="${CXX:-c++}"
GCC="${GCC:-gcc}"
GXX="${GXX:-g++}"
OBJDUMP="${OBJDUMP:-objdump}"
MACHINE="${MACHINE:-$(uname -m)}"
testname=$(basename "$0" .sh)
echo -n "Testing $testname ... "
cd "$(dirname "$0")"/../..
t=out/test/elf/$testname
mkdir -p $t
# glibc 2.22 or prior have a bug that ld-linux.so.2 crashes on dlopen()
# if .rela.dyn and .rela.plt are not contiguous in a given DSO.
# This test verifies that these sections are contiguous in mold's output.
cat <<EOF | $CC -o $t/a.o -fPIC -c -xc -
#include <stdio.h>
int main() {
printf("Hello world\n");
}
EOF
$CC -B. -o $t/b.so -shared $t/a.o
readelf -W --sections $t/b.so | grep -P -A1 '\.rela?\.dyn' | \
grep -Pq '\.rela?\.plt'
echo OK