add call stack collection support

1 files changed, 46 insertions, 0 deletions

diff --git a/include/pdb/call_stack.hpp b/include/pdb/call_stack.hpp
new file mode 100644
index 0000000..7f0c8b0
--- /dev/null
+++ b/include/pdb/call_stack.hpp
@@ -0,0 +1,46 @@
+// Copyright (c) 2020 Egor Tensin <Egor.Tensin@gmail.com>
+// This file is part of the "PDB repository" project.
+// For details, see https://github.com/egor-tensin/pdb-repo.
+// Distributed under the MIT License.
+
+#pragma once
+
+#include "address.hpp"
+#include "dbghelp.hpp"
+
+#include <SafeInt.hpp>
+
+#include <Windows.h>
+
+#include <array>
+#include <cstddef>
+#include <string>
+
+namespace pdb {
+
+class CallStack {
+public:
+    static constexpr std::size_t frames_to_skip = 0;
+    static constexpr std::size_t frames_to_capture = 62;
+
+    // Imposed by CaptureStackBackTrace:
+    static constexpr std::size_t max_length = 62;
+
+    static_assert(frames_to_skip + frames_to_capture <= max_length,
+                  "Call stack length is too large");
+
+    static CallStack capture();
+
+    const std::array<Address, max_length> frames;
+    const std::size_t length;
+
+private:
+    CallStack() = default;
+};
+
+namespace call_stack {
+
+std::string pretty_print_address(const DbgHelp& dbghelp, Address addr);
+
+} // namespace call_stack
+} // namespace pdb