SWDEV-527202: Moving ATT to experimental (#335)

* Moving ATT to experimental

* Formatting + rebase

* Addressing review comments

* Formatting

* Update source/lib/att-tool/waitcnt/analysis.cpp

---------

Co-authored-by: Giovanni Baraldi <gbaraldi@amd.com>
Co-authored-by: Madsen, Jonathan <Jonathan.Madsen@amd.com>

source/lib/att-tool/dl.cpp

@@ -0,0 +1,79 @@
+// MIT License
+//
+// Copyright (c) 2024-2025 Advanced Micro Devices, Inc. All rights reserved.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+#include "lib/att-tool/dl.hpp"
+#include "lib/common/environment.hpp"
+#include "lib/common/filesystem.hpp"
+#include "lib/common/logging.hpp"
+
+#include <rocprofiler-sdk/cxx/details/tokenize.hpp>
+
+#include <dlfcn.h>
+#include <atomic>
+#include <cassert>
+#include <cstdlib>
+#include <mutex>
+#include <set>
+#include <stdexcept>
+#include <string>
+
+namespace rocprofiler
+{
+namespace att_wrapper
+{
+namespace fs = ::rocprofiler::common::filesystem;
+
+fs::path
+get_search_path(std::string_view path_name)
+{
+    if(fs::exists(path_name)) return fs::path(path_name);
+    return "";
+}
+
+DL::DL(const char* libname)
+{
+    auto paths = rocprofiler::common::get_env("ROCPROF_ATT_LIBRARY_PATH", "");
+    if(paths.empty()) return;
+    auto path_set = rocprofiler::sdk::parse::tokenize(paths, ":");
+
+    for(auto&& name : path_set)
+    {
+        handle = dlopen((get_search_path(name) / libname).string().c_str(), RTLD_LAZY | RTLD_LOCAL);
+        if(handle) break;
+    }
+    if(!handle) return;
+
+    att_parse_data_fn =
+        reinterpret_cast<ParseFn*>(dlsym(handle, "rocprofiler_att_decoder_parse_data"));
+    att_info_fn =
+        reinterpret_cast<InfoFn*>(dlsym(handle, "rocprofiler_att_decoder_get_info_string"));
+    att_status_fn =
+        reinterpret_cast<StatusFn*>(dlsym(handle, "rocprofiler_att_decoder_get_status_string"));
+};
+
+DL::~DL()
+{
+    if(handle) dlclose(handle);
+}
+
+}  // namespace att_wrapper
+}  // namespace rocprofiler