// Licensed to the Apache Software Foundation (ASF) under one
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// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

// Helper library for ADRP overflow test.
// Defines a hidden-visibility function whose ADDRESS is taken
// by test_hidden_caller.cc.  On AArch64, the caller uses
// ADRP+ADD (no GOT) to compute the address — this overflows
// when the two objects are in different allocations >4GB apart.
//
// Reference: LLVM issue #173269

#include <tvm/ffi/c_api.h>

#include <cstdint>

// Hidden visibility: caller uses ADRP+ADD instead of GOT
__attribute__((visibility("hidden"))) int64_t hidden_helper_add(int64_t a, int64_t b) {
  return a + b;
}

// Export a TVM FFI function that calls hidden_helper_add directly
extern "C" {
TVM_FFI_DLL_EXPORT int __tvm_ffi_hidden_add(void* self, const TVMFFIAny* args, int32_t num_args,
                                            TVMFFIAny* result) {
  result->type_index = kTVMFFIInt;
  result->zero_padding = 0;
  result->v_int64 = hidden_helper_add(args[0].v_int64, args[1].v_int64);
  return 0;
}
}
