2 * Copyright 2015 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.
17 #ifndef FOLLY_SYMBOLIZER_STACKTRACE_H_
18 #define FOLLY_SYMBOLIZER_STACKTRACE_H_
23 namespace folly { namespace symbolizer {
26 * Get the current stack trace into addresses, which has room for at least
27 * maxAddresses frames.
29 * Returns the number of frames written in the array.
30 * Returns -1 on failure.
32 * NOT async-signal-safe, but fast.
34 ssize_t getStackTrace(uintptr_t* addresses, size_t maxAddresses);
37 * Get the current stack trace into addresses, which has room for at least
38 * maxAddresses frames.
40 * Returns the number of frames written in the array.
41 * Returns -1 on failure.
43 * Async-signal-safe, but likely slower.
45 ssize_t getStackTraceSafe(uintptr_t* addresses, size_t maxAddresses);
49 #endif /* FOLLY_SYMBOLIZER_STACKTRACE_H_ */