2 * Copyright 2017 Facebook, Inc.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
22 namespace folly { namespace symbolizer {
25 * Get the current stack trace into addresses, which has room for at least
26 * maxAddresses frames.
28 * Returns the number of frames written in the array.
29 * Returns -1 on failure.
31 * NOT async-signal-safe, but fast.
33 ssize_t getStackTrace(uintptr_t* addresses, size_t maxAddresses);
36 * Get the current stack trace into addresses, which has room for at least
37 * maxAddresses frames.
39 * Returns the number of frames written in the array.
40 * Returns -1 on failure.
42 * Async-signal-safe, but likely slower.
44 ssize_t getStackTraceSafe(uintptr_t* addresses, size_t maxAddresses);