/*
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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 <stdint.h>
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#include <gtest/gtest.h>
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#define UNW_LOCAL_ONLY
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#include <libunwind.h>
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#define EXTRA_CONTEXT_BYTES 1024
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TEST(libbacktrace, getcontext_size) {
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unw_context_t* context;
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context = reinterpret_cast<unw_context_t*>(malloc(sizeof(unw_context_t) + EXTRA_CONTEXT_BYTES));
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ASSERT_TRUE(context != NULL);
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uint8_t* extra = reinterpret_cast<uint8_t*>(reinterpret_cast<uintptr_t>(context) + sizeof(unw_context_t));
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for (size_t i = 0; i < EXTRA_CONTEXT_BYTES; i++) {
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extra[i] = (i % 255) + 1;
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}
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ASSERT_TRUE(unw_getcontext(context) == 0);
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/* Check that nothing was written past the end of the structure. */
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for (size_t i = 0; i < EXTRA_CONTEXT_BYTES; i++) {
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ASSERT_EQ((i % 255) + 1, extra[i]);
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}
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free(context);
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}
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