diff options
Diffstat (limited to 'chromium/base/profiler/stack_sampler.h')
| -rw-r--r-- | chromium/base/profiler/stack_sampler.h | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/chromium/base/profiler/stack_sampler.h b/chromium/base/profiler/stack_sampler.h index 9fc91051e85..9b4dfd971db 100644 --- a/chromium/base/profiler/stack_sampler.h +++ b/chromium/base/profiler/stack_sampler.h @@ -6,6 +6,7 @@ #define BASE_PROFILER_STACK_SAMPLER_H_ #include <memory> +#include <vector> #include "base/base_export.h" #include "base/macros.h" @@ -28,12 +29,14 @@ class BASE_EXPORT StackSampler { virtual ~StackSampler(); // Creates a stack sampler that records samples for thread with - // |thread_token|. Returns null if this platform does not support stack - // sampling. + // |thread_token|. Unwinders in |unwinders| must be stored in increasing + // priority to guide unwind attempts. Only the unwinder with the lowest + // priority is allowed to return with UnwindResult::COMPLETED. Returns null if + // this platform does not support stack sampling. static std::unique_ptr<StackSampler> Create( SamplingProfilerThreadToken thread_token, ModuleCache* module_cache, - std::unique_ptr<Unwinder> native_unwinder, + std::vector<std::unique_ptr<Unwinder>> core_unwinders, StackSamplerTestDelegate* test_delegate); // Gets the required size of the stack buffer. @@ -47,9 +50,8 @@ class BASE_EXPORT StackSampler { // thread being sampled). // Adds an auxiliary unwinder to handle additional, non-native-code unwind - // scenarios. When attempting to unwind, the relative priority of auxiliary - // unwinders is the inverse of the order of insertion, and the native - // unwinder is given the lowest priority + // scenarios. Unwinders must be inserted in increasing priority, following + // |unwinders| provided in Create(), to guide unwind attempts. virtual void AddAuxUnwinder(std::unique_ptr<Unwinder> unwinder) = 0; // Records a set of frames and returns them. |