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SWDEV-361912 - Fix kernel demangling

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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
This commit is contained in:
Laurent Morichetti
2022-12-05 20:32:10 -08:00
parent ca1726f80d
commit 91b449d0d5
2 changed files with 36 additions and 8 deletions
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plugin/file/file.cpp
+27 -7
View File
@@ -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 {