Michael Goderbauer
c6d9e040da
This reverts commit 9fce277b7e.
I verfied locally that this change no longer reduces binary size with a custom-built libcxxabi/libcxx and LTO.
Change-Id: I05dfb83597c064ba976573da5547ae79c0d41d1c
Reviewed-on: https://dart-review.googlesource.com/c/84831
Reviewed-by: Zach Anderson <zra@google.com>
Commit-Queue: Zach Anderson <zra@google.com>
61 lines
1.5 KiB
C++
61 lines
1.5 KiB
C++
// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#include "platform/globals.h"
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#if defined(HOST_OS_ANDROID)
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#include "vm/native_symbol.h"
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#include <cxxabi.h> // NOLINT
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#include <dlfcn.h> // NOLINT
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namespace dart {
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void NativeSymbolResolver::Init() {}
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void NativeSymbolResolver::Cleanup() {}
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char* NativeSymbolResolver::LookupSymbolName(uintptr_t pc, uintptr_t* start) {
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Dl_info info;
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int r = dladdr(reinterpret_cast<void*>(pc), &info);
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if (r == 0) {
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return NULL;
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}
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if (info.dli_sname == NULL) {
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return NULL;
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}
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if (start != NULL) {
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*start = reinterpret_cast<uintptr_t>(info.dli_saddr);
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}
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int status = 0;
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size_t len = 0;
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char* demangled = abi::__cxa_demangle(info.dli_sname, NULL, &len, &status);
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MSAN_UNPOISON(demangled, len);
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if (status == 0) {
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return demangled;
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}
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return strdup(info.dli_sname);
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}
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void NativeSymbolResolver::FreeSymbolName(char* name) {
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free(name);
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}
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bool NativeSymbolResolver::LookupSharedObject(uword pc,
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uword* dso_base,
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char** dso_name) {
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Dl_info info;
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int r = dladdr(reinterpret_cast<void*>(pc), &info);
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if (r == 0) {
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return false;
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}
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*dso_base = reinterpret_cast<uword>(info.dli_fbase);
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*dso_name = strdup(info.dli_fname);
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return true;
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}
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} // namespace dart
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#endif // defined(HOST_OS_ANDROID)
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