| // Copyright 2022 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef BASE_PROFILER_STACK_BASE_ADDRESS_POSIX_H_ |
| #define BASE_PROFILER_STACK_BASE_ADDRESS_POSIX_H_ |
| |
| #include <pthread.h> |
| #include <stdint.h> |
| |
| #include "base/base_export.h" |
| #include "base/threading/platform_thread.h" |
| #include "third_party/abseil-cpp/absl/types/optional.h" |
| |
| namespace base { |
| |
| // Returns the base address of the stack for the given thread. (The address of |
| // the start of the stack, the highest addressable byte, where the frame of the |
| // first function on the thread is.) |
| // |
| // |id| and |pthread_id| must refer to the same thread. |
| // |
| // On Linux & ChromeOS, if the sandbox has been engaged, this may crash if |
| // |id| and |pthread_id| refer to any thread except the current one. |
| // |
| // May return nullopt on Android if the thread's memory range is not found in |
| // /proc/self/maps. |
| BASE_EXPORT absl::optional<uintptr_t> GetThreadStackBaseAddress( |
| PlatformThreadId id, |
| pthread_t pthread_id); |
| |
| } // namespace base |
| |
| #endif // BASE_PROFILER_STACK_BASE_ADDRESS_POSIX_H_ |
