| /* |
| * Copyright (C) 2021 The Android Open Source Project |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
| * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
| * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
| * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| */ |
| #pragma once |
| |
| #include <sys/cdefs.h> |
| |
| /** |
| * @file execinfo.h |
| * @brief Functions to do in process backtracing. |
| */ |
| |
| __BEGIN_DECLS |
| |
| /** |
| * [backtrace(3)](https://man7.org/linux/man-pages/man3/backtrace.3.html) |
| * Saves a backtrace for the current call in the array pointed to by buffer. |
| * "size" indicates the maximum number of void* pointers that can be set. |
| * |
| * Returns the number of addresses stored in "buffer", which is not greater |
| * than "size". If the return value is equal to "size" then the number of |
| * addresses may have been truncated. |
| * |
| * Available since API level 33. |
| */ |
| int backtrace(void** buffer, int size) __INTRODUCED_IN(33); |
| |
| /** |
| * [backtrace_symbols(3)](https://man7.org/linux/man-pages/man3/backtrace_symbols.3.html) |
| * Given an array of void* pointers, translate the addresses into an array |
| * of strings that represent the backtrace. |
| * |
| * Returns a pointer to allocated memory, on error NULL is returned. It is |
| * the responsibility of the caller to free the returned memory. |
| * |
| * Available since API level 33. |
| */ |
| char** backtrace_symbols(void* const* buffer, int size) __INTRODUCED_IN(33); |
| |
| /** |
| * [backtrace_symbols_fd(3)](https://man7.org/linux/man-pages/man3/backtrace_symbols_fd.3.html) |
| * Given an array of void* pointers, translate the addresses into an array |
| * of strings that represent the backtrace and write to the file represented |
| * by "fd". The file is written such that one line equals one void* address. |
| * |
| * Available since API level 33. |
| */ |
| void backtrace_symbols_fd(void* const* buffer, int size, int fd) __INTRODUCED_IN(33); |
| |
| __END_DECLS |
