| /* |
| * 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); |
| } |