| // Copyright (c) 2016, 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_FUCHSIA) |
| |
| #include "platform/memory_sanitizer.h" |
| #include "vm/native_symbol.h" |
| |
| #include <cxxabi.h> // NOLINT |
| #include <dlfcn.h> // NOLINT |
| |
| namespace dart { |
| |
| void NativeSymbolResolver::Init() {} |
| |
| void NativeSymbolResolver::Cleanup() {} |
| |
| char* NativeSymbolResolver::LookupSymbolName(uintptr_t pc, uintptr_t* 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<uintptr_t>(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; |
| } |
| *dso_base = reinterpret_cast<uword>(info.dli_fbase); |
| *dso_name = strdup(info.dli_fname); |
| return true; |
| } |
| |
| } // namespace dart |
| |
| #endif // defined(HOST_OS_FUCHSIA) |