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/*
* Copyright (C) 2019 The Android Open Source Project
*
* Licensed 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.
*/
#include <android-base/logging.h>
#include <dlfcn.h>
#include "globals.h"
namespace art {
#ifdef __APPLE__
// dlopen(3) on Linux with just an SO name will search the already
// opened libraries. On Darwin, we need dlopen(3) needs the SO name
// qualified with it's path (if the SO is not on the search path). Use
// linker path when compiling app. See man pages for dlopen(3) and
// dlyd(1).
static constexpr const char kLibArtBaseDebug[] = "@rpath/libartbased.dylib";
static constexpr const char kLibArtBaseRelease[] = "@rpath/libartbase.dylib";
#else
static constexpr const char kLibArtBaseDebug[] = "libartbased.so";
static constexpr const char kLibArtBaseRelease[] = "libartbase.so";
#endif // __APPLE__
// Check that we have not loaded both debug and release version of libartbase at the same time.
//
// This can be a cascade problem originating from a call to
// LoadLibdexfileExternal in libdexfile_support: If it was called before any ART
// libraries were loaded it will default to the non-debug version, which can
// then clash with a later load of the debug version.
static struct CheckLoadedBuild {
CheckLoadedBuild() {
bool debug_build_loaded = (dlopen(kLibArtBaseDebug, RTLD_NOW | RTLD_NOLOAD) != nullptr);
bool release_build_loaded = (dlopen(kLibArtBaseRelease, RTLD_NOW | RTLD_NOLOAD) != nullptr);
// TODO: The exit calls below are needed as CHECK would cause recursive backtracing. Fix it.
if (!(debug_build_loaded || release_build_loaded)) {
LOG(FATAL_WITHOUT_ABORT) << "Failed to dlopen "
<< kLibArtBaseDebug
<< " or "
<< kLibArtBaseRelease;
exit(1);
}
if (kIsDebugBuild && release_build_loaded) {
LOG(FATAL_WITHOUT_ABORT) << "Loading "
<< kLibArtBaseDebug
<< " while "
<< kLibArtBaseRelease
<< " is already loaded";
exit(1);
}
if (!kIsDebugBuild && debug_build_loaded) {
LOG(FATAL_WITHOUT_ABORT) << "Loading "
<< kLibArtBaseRelease
<< " while "
<< kLibArtBaseDebug
<< " is already loaded";
exit(1);
}
}
} g_check_loaded_build;
} // namespace art
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