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/*
* Copyright (C) 2014 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 <stdint.h>
#include <gtest/gtest.h>
#define UNW_LOCAL_ONLY
#include <libunwind.h>
#define EXTRA_CONTEXT_BYTES 1024
TEST(libbacktrace, getcontext_size) {
unw_context_t* context;
context = reinterpret_cast<unw_context_t*>(malloc(sizeof(unw_context_t) + EXTRA_CONTEXT_BYTES));
ASSERT_TRUE(context != NULL);
uint8_t* extra = reinterpret_cast<uint8_t*>(reinterpret_cast<uintptr_t>(context) + sizeof(unw_context_t));
for (size_t i = 0; i < EXTRA_CONTEXT_BYTES; i++) {
extra[i] = (i % 255) + 1;
}
ASSERT_TRUE(unw_getcontext(context) == 0);
/* Check that nothing was written past the end of the structure. */
for (size_t i = 0; i < EXTRA_CONTEXT_BYTES; i++) {
ASSERT_EQ((i % 255) + 1, extra[i]);
}
free(context);
}
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