| // Copyright 2018 The Fuchsia 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 "src/developer/debug/zxdb/client/frame_fingerprint.h" |
| |
| #include <inttypes.h> |
| |
| #include "src/lib/fxl/strings/string_printf.h" |
| |
| namespace zxdb { |
| |
| bool FrameFingerprint::operator==(const FrameFingerprint& other) const { |
| return frame_address_ == other.frame_address_ && inline_count_ == other.inline_count_; |
| } |
| |
| std::string FrameFingerprint::ToString() const { |
| return fxl::StringPrintf("{0x%" PRIx64 ", %zu}", frame_address_, inline_count_); |
| } |
| |
| // static |
| bool FrameFingerprint::Newer(const FrameFingerprint& left, const FrameFingerprint& right) { |
| if (left.frame_address_ == right.frame_address_) { |
| // Inline functions (in the same physical frame) are newer if the inline stack depth is higher. |
| return left.inline_count_ > right.inline_count_; |
| } |
| |
| // Stacks grow "down" so bigger addresses represent older frames. |
| return left.frame_address_ < right.frame_address_; |
| } |
| |
| // static |
| bool FrameFingerprint::NewerOrEqual(const FrameFingerprint& left, const FrameFingerprint& right) { |
| return Newer(left, right) || left == right; |
| } |
| |
| } // namespace zxdb |
