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mirror of https://github.com/rui314/mold.git synced 2024-11-15 14:36:25 +03:00
mold/test/ifunc-export.sh
Rui Ueyama fe26dad744 Fix cmake build
You can now build mold with the following commands:

  $ mkdir -p out/debug
  $ cd out/debug
  $ cmake -GNinja -DCMAKE_CXX_COMPILER=clang++ -DCMAKE_BUILD_TYPE=Debug ../..
  $ ninja

To run tests, use the following commands:

  $ cd out/debug
  $ ctest -j$(nproc)
2021-07-20 00:33:28 +09:00

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#!/bin/bash
set -e
mold=$1
cd $(dirname $0)
echo -n "Testing $(basename -s .sh $0) ... "
t=$(pwd)/tmp/$(basename -s .sh $0)
mkdir -p $t
# Skip if libc is musl because musl does not support GNU FUNC
echo 'int main() {}' | cc -o $t/exe -xc -
ldd $t/exe | grep -q ld-musl && { echo OK; exit; }
cat <<EOF | cc -c -fPIC -o $t/a.o -x assembler -
.text
real_foobar:
lea .Lmsg(%rip), %rdi
xor %rax, %rax
call printf
xor %rax, %rax
ret
.globl resolve_foobar
resolve_foobar:
pushq %rbp
movq %rsp, %rbp
movq real_foobar@GOTPCREL(%rip), %rax
popq %rbp
ret
.globl foobar
.type foobar, @gnu_indirect_function
.set foobar, resolve_foobar
.data
.Lmsg:
.string "Hello world\n"
EOF
clang -fuse-ld=$mold -shared -o $t/b.so $t/a.o
readelf --dyn-syms $t/b.so | grep -Pq '0 (IFUNC|<OS specific>: 10)\s+GLOBAL DEFAULT \d+ foobar'
echo OK