blob: 158a2afea1e4f46b5a7e901a85057351240d1e07 [file] [log] [blame]
// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
#include "vm/globals.h"
#if defined(HOST_OS_LINUX)
#include "platform/memory_sanitizer.h"
#include "vm/native_symbol.h"
#include "vm/os.h"
#include <cxxabi.h> // NOLINT
#include <dlfcn.h> // NOLINT
namespace dart {
void NativeSymbolResolver::Init() {}
void NativeSymbolResolver::Cleanup() {}
char* NativeSymbolResolver::LookupSymbolName(uword pc, uword* start) {
Dl_info info;
int r = dladdr(reinterpret_cast<void*>(pc), &info);
if (r == 0) {
return NULL;
}
if (info.dli_sname == NULL) {
return NULL;
}
if (start != NULL) {
*start = reinterpret_cast<uword>(info.dli_saddr);
}
int status = 0;
size_t len = 0;
char* demangled = abi::__cxa_demangle(info.dli_sname, NULL, &len, &status);
MSAN_UNPOISON(demangled, len);
if (status == 0) {
return demangled;
}
return strdup(info.dli_sname);
}
void NativeSymbolResolver::FreeSymbolName(char* name) {
free(name);
}
bool NativeSymbolResolver::LookupSharedObject(uword pc,
uword* dso_base,
char** dso_name) {
Dl_info info;
int r = dladdr(reinterpret_cast<void*>(pc), &info);
if (r == 0) {
return false;
}
if (dso_base != nullptr) {
*dso_base = reinterpret_cast<uword>(info.dli_fbase);
}
if (dso_name != nullptr) {
*dso_name = strdup(info.dli_fname);
}
return true;
}
void NativeSymbolResolver::AddSymbols(const char* dso_name,
void* buffer,
size_t size) {
OS::PrintErr("warning: Dart_AddSymbols has no effect on Linux\n");
}
} // namespace dart
#endif // defined(HOST_OS_LINUX)