| // Copyright 2015 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "base/profiler/stack_sampler.h" |
| |
| #include "base/profiler/native_unwinder_win.h" |
| #include "base/profiler/stack_sampler_impl.h" |
| #include "base/profiler/thread_delegate_win.h" |
| #include "build/build_config.h" |
| |
| namespace base { |
| |
| // static |
| std::unique_ptr<StackSampler> StackSampler::Create( |
| PlatformThreadId thread_id, |
| ModuleCache* module_cache, |
| StackSamplerTestDelegate* test_delegate) { |
| #if defined(ARCH_CPU_X86_64) || defined(ARCH_CPU_ARM64) |
| return std::make_unique<StackSamplerImpl>( |
| std::make_unique<ThreadDelegateWin>(thread_id), |
| std::make_unique<NativeUnwinderWin>(), module_cache, test_delegate); |
| #else |
| return nullptr; |
| #endif |
| } |
| |
| // static |
| size_t StackSampler::GetStackBufferSize() { |
| // The default Win32 reserved stack size is 1 MB and Chrome Windows threads |
| // currently always use the default, but this allows for expansion if it |
| // occurs. The size beyond the actual stack size consists of unallocated |
| // virtual memory pages so carries little cost (just a bit of wasted address |
| // space). |
| return 2 << 20; // 2 MiB |
| } |
| |
| } // namespace base |