mirror of
https://github.com/apple/swift.git
synced 2025-12-21 12:14:44 +01:00
63a09007a1
Moved all the threading code to one place. Added explicit support for Darwin, Linux, Pthreads, C11 threads and Win32 threads, including new implementations of Once for Linux, Pthreads, C11 and Win32. rdar://90776105
92 lines
2.5 KiB
C++
92 lines
2.5 KiB
C++
//===--- ImageInspectionWin32.cpp - Win32 image inspection ----------------===//
|
|
//
|
|
// This source file is part of the Swift.org open source project
|
|
//
|
|
// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
|
|
// Licensed under Apache License v2.0 with Runtime Library Exception
|
|
//
|
|
// See https://swift.org/LICENSE.txt for license information
|
|
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#if !defined(__ELF__) && !defined(__MACH__)
|
|
|
|
#include "ImageInspection.h"
|
|
|
|
#if defined(__CYGWIN__)
|
|
#include <dlfcn.h>
|
|
#elif defined(_WIN32)
|
|
#define WIN32_LEAN_AND_MEAN
|
|
#define NOMINMAX
|
|
#include <Windows.h>
|
|
#include <DbgHelp.h>
|
|
#endif
|
|
|
|
#include "swift/Threading/Mutex.h"
|
|
|
|
using namespace swift;
|
|
|
|
int swift::lookupSymbol(const void *address, SymbolInfo *info) {
|
|
#if defined(__CYGWIN__)
|
|
Dl_info dlinfo;
|
|
if (dladdr(address, &dlinfo) == 0) {
|
|
return 0;
|
|
}
|
|
|
|
info->fileName = dlinfo.dli_fname;
|
|
info->baseAddress = dlinfo.dli_fbase;
|
|
info->symbolName = dli_info.dli_sname;
|
|
info->symbolAddress = dli_saddr;
|
|
return 1;
|
|
#elif defined(_WIN32)
|
|
return _swift_withWin32DbgHelpLibrary([&] (bool isInitialized) {
|
|
static const constexpr size_t kSymbolMaxNameLen = 1024;
|
|
|
|
if (!isInitialized) {
|
|
return 0;
|
|
}
|
|
|
|
char buffer[sizeof(SYMBOL_INFO) + kSymbolMaxNameLen];
|
|
PSYMBOL_INFO pSymbol = reinterpret_cast<PSYMBOL_INFO>(buffer);
|
|
pSymbol->SizeOfStruct = sizeof(SYMBOL_INFO);
|
|
pSymbol->MaxNameLen = kSymbolMaxNameLen;
|
|
|
|
DWORD64 dwDisplacement = 0;
|
|
|
|
if (SymFromAddr(GetCurrentProcess(),
|
|
reinterpret_cast<const DWORD64>(address),
|
|
&dwDisplacement, pSymbol) == FALSE) {
|
|
return 0;
|
|
}
|
|
|
|
info->fileName = NULL;
|
|
info->baseAddress = reinterpret_cast<void *>(pSymbol->ModBase);
|
|
info->symbolName.reset(_strdup(pSymbol->Name));
|
|
info->symbolAddress = reinterpret_cast<void *>(pSymbol->Address);
|
|
|
|
return 1;
|
|
});
|
|
#else
|
|
return 0;
|
|
#endif // defined(__CYGWIN__) || defined(_WIN32)
|
|
}
|
|
|
|
#if defined(_WIN32)
|
|
static LazyMutex mutex;
|
|
static bool isDbgHelpInitialized = false;
|
|
|
|
void swift::_swift_withWin32DbgHelpLibrary(
|
|
void (* body)(bool isInitialized, void *context), void *context) {
|
|
mutex.withLock([=] () {
|
|
if (!isDbgHelpInitialized) {
|
|
SymSetOptions(SYMOPT_UNDNAME | SYMOPT_DEFERRED_LOADS);
|
|
isDbgHelpInitialized = SymInitialize(GetCurrentProcess(), nullptr, true);
|
|
}
|
|
body(isDbgHelpInitialized, context);
|
|
});
|
|
}
|
|
#endif
|
|
|
|
#endif // !defined(__ELF__) && !defined(__MACH__)
|