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