d97e9f546e
Bug: http://code.google.com/p/android/issues/detail?id=66048 Change-Id: Ib334223df27adad9477fb241ab099c5e26df4a7d
48 lines
1.4 KiB
C++
48 lines
1.4 KiB
C++
/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <stdlib.h>
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#include <dlfcn.h>
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#include <stdio.h>
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extern const uint32_t private_taxicab_number;
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extern "C" {
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uint32_t dlsym_local_symbol_get_taxicab_number();
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uint32_t dlsym_local_symbol_get_taxicab_number_using_dlsym();
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}
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uint32_t dlsym_local_symbol_get_taxicab_number() {
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return private_taxicab_number;
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}
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// Let's make sure that dlsym works correctly for local symbol
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uint32_t dlsym_local_symbol_get_taxicab_number_using_dlsym() {
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dlerror();
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uint32_t* ptr = reinterpret_cast<uint32_t*>(dlsym(RTLD_DEFAULT, "private_taxicab_number"));
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if (ptr == nullptr) {
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const char* dlerr = dlerror();
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if (dlerr != nullptr) {
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fprintf(stderr, "dlsym error: %s\n", dlerr);
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} else {
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fprintf(stderr, "dlsym returned NULL with no dlerror.\n");
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}
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return 0;
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}
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return *ptr;
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}
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