SWDEV-361912 - Fix kernel demangling

Older GNU C++ runtimes cannot demangle symbol names generated by recent
versions of LLVM. To work around this issue, use the LLVM demangler to
process kernel names.

Change-Id: I595f900d06360bb5acce542955cf1f5aed81f00e

plugin/file/CMakeLists.txt

@@ -20,6 +20,14 @@
 ## IN THE SOFTWARE.
 ################################################################################
 
+find_package(amd_comgr REQUIRED CONFIG
+  PATHS
+    /opt/rocm/
+  PATH_SUFFIXES
+    lib/cmake/amd_comgr
+)
+MESSAGE(STATUS "Code Object Manager found at ${amd_comgr_DIR}.")
+
 file(GLOB FILE_SOURCES "*.cpp")
 add_library(file_plugin ${LIBRARY_TYPE} ${FILE_SOURCES})
 
@@ -35,7 +43,7 @@ target_include_directories(file_plugin PRIVATE ${PROJECT_SOURCE_DIR}/inc)
 
 target_link_options(file_plugin PRIVATE -Wl,--version-script=${CMAKE_CURRENT_SOURCE_DIR}/../exportmap -Wl,--no-undefined)
 
-target_link_libraries(file_plugin PRIVATE util roctracer hsa-runtime64::hsa-runtime64 stdc++fs)
+target_link_libraries(file_plugin PRIVATE util roctracer  amd_comgr hsa-runtime64::hsa-runtime64 stdc++fs amd_comgr)
 
 install(TARGETS file_plugin LIBRARY
         DESTINATION ${CMAKE_INSTALL_LIBDIR}/${PROJECT_NAME}

plugin/file/file.cpp

@@ -36,7 +36,7 @@
 #include <sstream>
 #include <string>
 
-#include <cxxabi.h>
+#include <amd_comgr/amd_comgr.h>
 #include <stdarg.h>
 #include <stdio.h>
 #include <string.h>
@@ -103,14 +103,34 @@ std::string truncate_name(const std::string& name) {
   return name.substr(rend - rit, rit - rbeg);
 }
 
+#define amd_comgr_(call)                                                                           \
+  do {                                                                                             \
+    if (amd_comgr_status_t status = amd_comgr_##call; status != AMD_COMGR_STATUS_SUCCESS) {        \
+      const char* reason = "";                                                                     \
+      amd_comgr_status_string(status, &reason);                                                    \
+      fatal(#call " failed: %s", reason);                                                          \
+    }                                                                                              \
+  } while (false)
+
 // C++ symbol demangle
 std::string cxx_demangle(const std::string& symbol) {
-  int status;
-  char* demangled = abi::__cxa_demangle(symbol.c_str(), nullptr, nullptr, &status);
-  if (status != 0) return symbol;
-  std::string ret(demangled);
-  free(demangled);
-  return ret;
+  amd_comgr_data_t mangled_data;
+  amd_comgr_(create_data(AMD_COMGR_DATA_KIND_BYTES, &mangled_data));
+  amd_comgr_(set_data(mangled_data, symbol.size(), symbol.data()));
+
+  amd_comgr_data_t demangled_data;
+  amd_comgr_(demangle_symbol_name(mangled_data, &demangled_data));
+
+  size_t demangled_size = 0;
+  amd_comgr_(get_data(demangled_data, &demangled_size, nullptr));
+
+  std::string demangled_str;
+  demangled_str.resize(demangled_size);
+  amd_comgr_(get_data(demangled_data, &demangled_size, demangled_str.data()));
+
+  amd_comgr_(release_data(mangled_data));
+  amd_comgr_(release_data(demangled_data));
+  return demangled_str;
 }
 
 class file_plugin_t {