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mold/test/elf/symbol-rank.sh
Rui Ueyama e6d4154688 [ELF] Generalize tests
With this change, you can now cross compile test cases and run
them on qemu-user. Here is an example to run our test suits in
an emulated ARM32 environment.

$ CC=arm-linux-gnueabihf-gcc \
  CXX=arm-linux-gnueabihf-g++ \
  GCC=arm-linux-gnueabihf-gcc \
  GXX=arm-linux-gnueabihf-g++ \
  OBJDUMP=arm-linux-gnueabihf-objdump \
  MACHINE=arm \
  QEMU='qemu-arm -L /usr/arm-linux-gnueabihf' \
  make -j16 test
2022-04-02 16:53:41 +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 "$0")"/../..
mold="$(pwd)/mold"
t=out/test/elf/$testname
mkdir -p $t
cat <<EOF | $CC -o $t/a.o -c -xc -
int a = 0;
__attribute__((weak)) int weak_undef;
EOF
cat <<EOF | $CC -o $t/b.o -c -xc - -fcommon
int b = 0;
int common;
EOF
cat <<EOF | $CC -o $t/c.o -c -xc -
int c = 0;
__attribute__((weak)) int weak_def = 3;
EOF
cat <<EOF | $CC -o $t/d.o -c -xc - -fcommon
#include <stdio.h>
__attribute__((weak)) extern int a;
__attribute__((weak)) extern int b;
extern int c;
__attribute__((weak)) extern int weak_undef;
__attribute__((weak)) int weak_def = 5;
int common;
int main() {
(void)common;
(void)c;
printf("%d %d %d %d\n", !!&a, !!&b, !!&weak_undef, weak_def);
}
EOF
rm -f $t/x.a
ar rcs $t/x.a $t/a.o $t/b.o $t/c.o
$CC -B. -o $t/exe $t/d.o $t/x.a
$QEMU $t/exe | grep -q '^0 0 0 5$'
echo OK