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https://github.com/dart-lang/sdk
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f407419d0a
This relands https://dart-review.googlesource.com/c/sdk/+/205633 but without renaming TARGET_OS_IPHONE to DART_TARGET_OS_IPHONE. It also changes uses of TARGET_OS_IOS to DART_TARGET_OS_MACOS_IOS to be consistent with the rest of the VM. TargetConditionals.h for XCode 13 defines several TARGET_OS_* preprocessor symbols that confuse the Dart build. There is probably a more targeted fix for this, but renaming the symbols that Dart uses will also prevent this problem if more symbols are added to the platform headers in the future. See: https://github.com/dart-lang/sdk/issues/46499 TEST=It builds. Change-Id: Ie775c19dd23cfdf5f65e5ebc6ee4ec3a561676fa Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/205860 Commit-Queue: Zach Anderson <zra@google.com> Reviewed-by: Alexander Aprelev <aam@google.com>
111 lines
3 KiB
C++
111 lines
3 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 "vm/globals.h"
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#if defined(DART_HOST_OS_WINDOWS)
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#include "vm/lockers.h"
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#include "vm/native_symbol.h"
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#include "vm/os.h"
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#include "vm/os_thread.h"
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#include <dbghelp.h> // NOLINT
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namespace dart {
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static bool running_ = false;
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static Mutex* lock_ = NULL;
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void NativeSymbolResolver::Init() {
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ASSERT(running_ == false);
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if (lock_ == NULL) {
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lock_ = new Mutex();
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}
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running_ = true;
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// Symbol resolution API's used in this file are not supported
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// when compiled in UWP.
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#ifndef DART_TARGET_OS_WINDOWS_UWP
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SymSetOptions(SYMOPT_UNDNAME | SYMOPT_DEFERRED_LOADS);
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HANDLE hProcess = GetCurrentProcess();
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if (!SymInitialize(hProcess, NULL, TRUE)) {
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DWORD error = GetLastError();
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OS::PrintErr("Failed to init NativeSymbolResolver (SymInitialize %" Pu32
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")\n",
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error);
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return;
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}
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#endif
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}
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void NativeSymbolResolver::Cleanup() {
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MutexLocker lock(lock_);
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if (!running_) {
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return;
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}
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running_ = false;
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#ifndef DART_TARGET_OS_WINDOWS_UWP
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HANDLE hProcess = GetCurrentProcess();
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if (!SymCleanup(hProcess)) {
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DWORD error = GetLastError();
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OS::PrintErr("Failed to shutdown NativeSymbolResolver (SymCleanup %" Pu32
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")\n",
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error);
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}
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#endif
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}
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char* NativeSymbolResolver::LookupSymbolName(uword pc, uword* start) {
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#ifdef DART_TARGET_OS_WINDOWS_UWP
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return NULL;
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#else
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static const intptr_t kMaxNameLength = 2048;
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static const intptr_t kSymbolInfoSize = sizeof(SYMBOL_INFO); // NOLINT.
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static char buffer[kSymbolInfoSize + kMaxNameLength];
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static char name_buffer[kMaxNameLength];
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MutexLocker lock(lock_);
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if (!running_) {
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return NULL;
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}
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if (start != NULL) {
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*start = NULL;
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}
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memset(&buffer[0], 0, sizeof(buffer));
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HANDLE hProcess = GetCurrentProcess();
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DWORD64 address = static_cast<DWORD64>(pc);
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PSYMBOL_INFO pSymbol = reinterpret_cast<PSYMBOL_INFO>(&buffer[0]);
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pSymbol->SizeOfStruct = kSymbolInfoSize;
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pSymbol->MaxNameLen = kMaxNameLength;
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DWORD64 displacement;
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BOOL r = SymFromAddr(hProcess, address, &displacement, pSymbol);
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if (r == FALSE) {
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return NULL;
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}
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if (start != NULL) {
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*start = pc - displacement;
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}
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return Utils::StrDup(pSymbol->Name);
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#endif // ifdef DART_TARGET_OS_WINDOWS_UWP
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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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return false;
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}
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void NativeSymbolResolver::AddSymbols(const char* dso_name,
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void* buffer,
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size_t size) {
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OS::PrintErr("warning: Dart_AddSymbols has no effect on Windows\n");
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}
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} // namespace dart
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#endif // defined(DART_HOST_OS_WINDOWS)
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