GFX950 Stochastic PC sampling (#344)

* GFX950 Stochastic PC sampling

* Use actual type instead void *

* error reporting if the pcs method is inappropriate

source/lib/rocprofiler-sdk/pc_sampling/parser/tests/gfx950test.cpp

@@ -0,0 +1,72 @@
+// MIT License
+//
+// Copyright (c) 2023-2025 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.
+
+#ifdef NDEBUG
+#    undef NDEBUG
+#endif
+
+#include "lib/rocprofiler-sdk/pc_sampling/parser/tests/gfx9test.hpp"
+
+#include <gtest/gtest.h>
+#include <cstddef>
+
+/**
+ * @brief This test verifies if the PC address is corrected properly on GFX950 when required.
+ */
+template <typename PcSamplingRecordT>
+class MidMacroPCCorrectionGFX950 : public MidMacroPCCorrection<PcSamplingRecordT>
+{
+public:
+    void genPCSample(uint64_t pc, bool mid_macro) override
+    {
+        // mid_macro exists only for stochastic PC sampling on GFX950
+        if constexpr(!std::is_same<PcSamplingRecordT,
+                                   rocprofiler_pc_sampling_record_stochastic_v0_t>::value)
+        {
+            // Invalidate mid_macro
+            mid_macro = false;
+        }
+
+        // invoking parent class
+        MidMacroPCCorrection<PcSamplingRecordT>::genPCSample(pc, mid_macro);
+    };
+
+    uint64_t calcaulteExpectedPC(uint64_t pc, bool mid_macro) override
+    {
+        // According to the regspec, if mid_macro is true, we need to subtract 2 dwords from the PC
+        // address.
+        return mid_macro ? (pc - 2 * sizeof(uint32_t)) : pc;
+    }
+
+    std::vector<std::vector<PcSamplingRecordT>> get_parsed_data() override
+    {
+        return this->buffer->get_parsed_buffer(9, 5);  // GFX950
+    }
+};
+
+TEST(pcs_parser, gfx950_test)
+{
+    MidMacroPCCorrectionGFX950<rocprofiler_pc_sampling_record_host_trap_v0_t>{}.Test();
+    MidMacroPCCorrectionGFX950<rocprofiler_pc_sampling_record_stochastic_v0_t>{}.Test();
+
+    std::cout << "GFX950 Test Done." << std::endl;
+}