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Imported Upstream version 5.18.0.167

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Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a
This commit is contained in:
Xamarin Public Jenkins (auto-signing)
2018-10-20 08:25:10 +00:00
parent e19d552987
commit b084638f15
28489 changed files with 184 additions and 3866856 deletions
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37
external/llvm/lib/Support/Windows/COM.inc vendored
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//==- llvm/Support/Windows/COM.inc - Windows COM Implementation -*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements the Windows portion of COM support.
//
//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
//=== WARNING: Implementation here must contain only Windows code.
//===----------------------------------------------------------------------===//
#include <objbase.h>
namespace llvm {
namespace sys {
InitializeCOMRAII::InitializeCOMRAII(COMThreadingMode Threading,
bool SpeedOverMemory) {
DWORD Coinit = 0;
if (Threading == COMThreadingMode::SingleThreaded)
Coinit |= COINIT_APARTMENTTHREADED;
else
Coinit |= COINIT_MULTITHREADED;
if (SpeedOverMemory)
Coinit |= COINIT_SPEED_OVER_MEMORY;
::CoInitializeEx(nullptr, Coinit);
}
InitializeCOMRAII::~InitializeCOMRAII() { ::CoUninitialize(); }
}
}

202
external/llvm/lib/Support/Windows/DynamicLibrary.inc vendored
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//===- Win32/DynamicLibrary.cpp - Win32 DL Implementation -------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file provides the Win32 specific implementation of DynamicLibrary.
//
//===----------------------------------------------------------------------===//
#include "WindowsSupport.h"
#include "llvm/Support/raw_ostream.h"
#include <psapi.h>
//===----------------------------------------------------------------------===//
//=== WARNING: Implementation here must contain only Win32 specific code
//=== and must not be UNIX code.
//===----------------------------------------------------------------------===//
DynamicLibrary::HandleSet::~HandleSet() {
for (void *Handle : llvm::reverse(Handles))
FreeLibrary(HMODULE(Handle));
// 'Process' should not be released on Windows.
assert((!Process || Process==this) && "Bad Handle");
// llvm_shutdown called, Return to default
DynamicLibrary::SearchOrder = DynamicLibrary::SO_Linker;
}
void *DynamicLibrary::HandleSet::DLOpen(const char *File, std::string *Err) {
// Create the instance and return it to be the *Process* handle
// simillar to dlopen(NULL, RTLD_LAZY|RTLD_GLOBAL)
if (!File)
return &(*OpenedHandles);
SmallVector<wchar_t, MAX_PATH> FileUnicode;
if (std::error_code ec = windows::UTF8ToUTF16(File, FileUnicode)) {
SetLastError(ec.value());
MakeErrMsg(Err, std::string(File) + ": Can't convert to UTF-16");
return &DynamicLibrary::Invalid;
}
HMODULE Handle = LoadLibraryW(FileUnicode.data());
if (Handle == NULL) {
MakeErrMsg(Err, std::string(File) + ": Can't open");
return &DynamicLibrary::Invalid;
}
return reinterpret_cast<void*>(Handle);
}
static DynamicLibrary::HandleSet *IsOpenedHandlesInstance(void *Handle) {
if (!OpenedHandles.isConstructed())
return nullptr;
DynamicLibrary::HandleSet &Inst = *OpenedHandles;
return Handle == &Inst ? &Inst : nullptr;
}
void DynamicLibrary::HandleSet::DLClose(void *Handle) {
if (HandleSet* HS = IsOpenedHandlesInstance(Handle))
HS->Process = nullptr; // Just drop the *Process* handle.
else
FreeLibrary((HMODULE)Handle);
}
static bool GetProcessModules(HANDLE H, DWORD &Bytes, HMODULE *Data = nullptr) {
// EnumProcessModules will fail on Windows 64 while some versions of
// MingW-32 don't have EnumProcessModulesEx.
if (
#ifdef _WIN64
!EnumProcessModulesEx(H, Data, Bytes, &Bytes, LIST_MODULES_64BIT)
#else
!EnumProcessModules(H, Data, Bytes, &Bytes)
#endif
) {
std::string Err;
if (MakeErrMsg(&Err, "EnumProcessModules failure"))
llvm::errs() << Err << "\n";
return false;
}
return true;
}
void *DynamicLibrary::HandleSet::DLSym(void *Handle, const char *Symbol) {
HandleSet* HS = IsOpenedHandlesInstance(Handle);
if (!HS)
return (void *)uintptr_t(GetProcAddress((HMODULE)Handle, Symbol));
// Could have done a dlclose on the *Process* handle
if (!HS->Process)
return nullptr;
// Trials indicate EnumProcessModulesEx is consistantly faster than using
// EnumerateLoadedModules64 or CreateToolhelp32Snapshot.
//
// | Handles | DbgHelp.dll | CreateSnapshot | EnumProcessModulesEx
// |=========|=============|========================================
// | 37 | 0.0000585 * | 0.0003031 | 0.0000152
// | 1020 | 0.0026310 * | 0.0121598 | 0.0002683
// | 2084 | 0.0149418 * | 0.0369936 | 0.0005610
//
// * Not including the load time of Dbghelp.dll (~.005 sec)
//
// There's still a case to somehow cache the result of EnumProcessModulesEx
// across invocations, but the complication of doing that properly...
// Possibly using LdrRegisterDllNotification to invalidate the cache?
DWORD Bytes = 0;
HMODULE Self = HMODULE(GetCurrentProcess());
if (!GetProcessModules(Self, Bytes))
return nullptr;
// Get the most recent list in case any modules added/removed between calls
// to EnumProcessModulesEx that gets the amount of, then copies the HMODULES.
// MSDN is pretty clear that if the module list changes during the call to
// EnumProcessModulesEx the results should not be used.
std::vector<HMODULE> Handles;
do {
assert(Bytes && ((Bytes % sizeof(HMODULE)) == 0) &&
"Should have at least one module and be aligned");
Handles.resize(Bytes / sizeof(HMODULE));
if (!GetProcessModules(Self, Bytes, Handles.data()))
return nullptr;
} while (Bytes != (Handles.size() * sizeof(HMODULE)));
// Try EXE first, mirroring what dlsym(dlopen(NULL)) does.
if (FARPROC Ptr = GetProcAddress(HMODULE(Handles.front()), Symbol))
return (void *) uintptr_t(Ptr);
if (Handles.size() > 1) {
// This is different behaviour than what Posix dlsym(dlopen(NULL)) does.
// Doing that here is causing real problems for the JIT where msvc.dll
// and ucrt.dll can define the same symbols. The runtime linker will choose
// symbols from ucrt.dll first, but iterating NOT in reverse here would
// mean that the msvc.dll versions would be returned.
for (auto I = Handles.rbegin(), E = Handles.rend()-1; I != E; ++I) {
if (FARPROC Ptr = GetProcAddress(HMODULE(*I), Symbol))
return (void *) uintptr_t(Ptr);
}
}
return nullptr;
}
// Stack probing routines are in the support library (e.g. libgcc), but we don't
// have dynamic linking on windows. Provide a hook.
#define EXPLICIT_SYMBOL(SYM) \
extern "C" { extern void *SYM; }
#define EXPLICIT_SYMBOL2(SYMFROM, SYMTO) EXPLICIT_SYMBOL(SYMTO)
#ifdef _M_IX86
// Win32 on x86 implements certain single-precision math functions as macros.
// These functions are not exported by the DLL, but will still be needed
// for symbol-resolution by the JIT loader. Therefore, this Support libray
// provides helper functions with the same implementation.
#define INLINE_DEF_SYMBOL1(TYP, SYM) \
extern "C" TYP inline_##SYM(TYP _X) { return SYM(_X); }
#define INLINE_DEF_SYMBOL2(TYP, SYM) \
extern "C" TYP inline_##SYM(TYP _X, TYP _Y) { return SYM(_X, _Y); }
#endif
#include "explicit_symbols.inc"
#undef EXPLICIT_SYMBOL
#undef EXPLICIT_SYMBOL2
#undef INLINE_DEF_SYMBOL1
#undef INLINE_DEF_SYMBOL2
static void *DoSearch(const char *SymbolName) {
#define EXPLICIT_SYMBOL(SYM) \
if (!strcmp(SymbolName, #SYM)) \
return (void *)&SYM;
#define EXPLICIT_SYMBOL2(SYMFROM, SYMTO) \
if (!strcmp(SymbolName, #SYMFROM)) \
return (void *)&SYMTO;
#ifdef _M_IX86
#define INLINE_DEF_SYMBOL1(TYP, SYM) \
if (!strcmp(SymbolName, #SYM)) \
return (void *)&inline_##SYM;
#define INLINE_DEF_SYMBOL2(TYP, SYM) INLINE_DEF_SYMBOL1(TYP, SYM)
#endif
{
#include "explicit_symbols.inc"
}
#undef EXPLICIT_SYMBOL
#undef EXPLICIT_SYMBOL2
#undef INLINE_DEF_SYMBOL1
#undef INLINE_DEF_SYMBOL2
return nullptr;
}

34
external/llvm/lib/Support/Windows/Host.inc vendored
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//===- llvm/Support/Win32/Host.inc ------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements the Win32 Host support.
//
//===----------------------------------------------------------------------===//
#include "WindowsSupport.h"
#include <cstdio>
#include <string>
using namespace llvm;
static std::string updateTripleOSVersion(std::string Triple) {
return Triple;
}
std::string sys::getDefaultTargetTriple() {
const char *Triple = LLVM_DEFAULT_TARGET_TRIPLE;
// Override the default target with an environment variable named by LLVM_TARGET_TRIPLE_ENV.
#if defined(LLVM_TARGET_TRIPLE_ENV)
if (const char *EnvTriple = std::getenv(LLVM_TARGET_TRIPLE_ENV))
Triple = EnvTriple;
#endif
return Triple::normalize(Triple);
}

164
external/llvm/lib/Support/Windows/Memory.inc vendored
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//===- Win32/Memory.cpp - Win32 Memory Implementation -----------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file provides the Win32 specific implementation of various Memory
// management utilities
//
//===----------------------------------------------------------------------===//
#include "llvm/Support/DataTypes.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/Process.h"
#include "llvm/Support/WindowsError.h"
// The Windows.h header must be the last one included.
#include "WindowsSupport.h"
namespace {
DWORD getWindowsProtectionFlags(unsigned Flags) {
switch (Flags) {
// Contrary to what you might expect, the Windows page protection flags
// are not a bitwise combination of RWX values
case llvm::sys::Memory::MF_READ:
return PAGE_READONLY;
case llvm::sys::Memory::MF_WRITE:
// Note: PAGE_WRITE is not supported by VirtualProtect
return PAGE_READWRITE;
case llvm::sys::Memory::MF_READ|llvm::sys::Memory::MF_WRITE:
return PAGE_READWRITE;
case llvm::sys::Memory::MF_READ|llvm::sys::Memory::MF_EXEC:
return PAGE_EXECUTE_READ;
case llvm::sys::Memory::MF_READ |
llvm::sys::Memory::MF_WRITE |
llvm::sys::Memory::MF_EXEC:
return PAGE_EXECUTE_READWRITE;
case llvm::sys::Memory::MF_EXEC:
return PAGE_EXECUTE;
default:
llvm_unreachable("Illegal memory protection flag specified!");
}
// Provide a default return value as required by some compilers.
return PAGE_NOACCESS;
}
size_t getAllocationGranularity() {
SYSTEM_INFO Info;
::GetSystemInfo(&Info);
if (Info.dwPageSize > Info.dwAllocationGranularity)
return Info.dwPageSize;
else
return Info.dwAllocationGranularity;
}
} // namespace
namespace llvm {
namespace sys {
//===----------------------------------------------------------------------===//
//=== WARNING: Implementation here must contain only Win32 specific code
//=== and must not be UNIX code
//===----------------------------------------------------------------------===//
MemoryBlock Memory::allocateMappedMemory(size_t NumBytes,
const MemoryBlock *const NearBlock,
unsigned Flags,
std::error_code &EC) {
EC = std::error_code();
if (NumBytes == 0)
return MemoryBlock();
// While we'd be happy to allocate single pages, the Windows allocation
// granularity may be larger than a single page (in practice, it is 64K)
// so mapping less than that will create an unreachable fragment of memory.
// Avoid using one-time initialization of static locals here, since they
// aren't thread safe with MSVC.
static volatile size_t GranularityCached;
size_t Granularity = GranularityCached;
if (Granularity == 0) {
Granularity = getAllocationGranularity();
GranularityCached = Granularity;
}
const size_t NumBlocks = (NumBytes+Granularity-1)/Granularity;
uintptr_t Start = NearBlock ? reinterpret_cast<uintptr_t>(NearBlock->base()) +
NearBlock->size()
: 0;
// If the requested address is not aligned to the allocation granularity,
// round up to get beyond NearBlock. VirtualAlloc would have rounded down.
if (Start && Start % Granularity != 0)
Start += Granularity - Start % Granularity;
DWORD Protect = getWindowsProtectionFlags(Flags);
void *PA = ::VirtualAlloc(reinterpret_cast<void*>(Start),
NumBlocks*Granularity,
MEM_RESERVE | MEM_COMMIT, Protect);
if (PA == NULL) {
if (NearBlock) {
// Try again without the NearBlock hint
return allocateMappedMemory(NumBytes, NULL, Flags, EC);
}
EC = mapWindowsError(::GetLastError());
return MemoryBlock();
}
MemoryBlock Result;
Result.Address = PA;
Result.Size = NumBlocks*Granularity;
if (Flags & MF_EXEC)
Memory::InvalidateInstructionCache(Result.Address, Result.Size);
return Result;
}
std::error_code Memory::releaseMappedMemory(MemoryBlock &M) {
if (M.Address == 0 || M.Size == 0)
return std::error_code();
if (!VirtualFree(M.Address, 0, MEM_RELEASE))
return mapWindowsError(::GetLastError());
M.Address = 0;
M.Size = 0;
return std::error_code();
}
std::error_code Memory::protectMappedMemory(const MemoryBlock &M,
unsigned Flags) {
if (M.Address == 0 || M.Size == 0)
return std::error_code();
DWORD Protect = getWindowsProtectionFlags(Flags);
DWORD OldFlags;
if (!VirtualProtect(M.Address, M.Size, Protect, &OldFlags))
return mapWindowsError(::GetLastError());
if (Flags & MF_EXEC)
Memory::InvalidateInstructionCache(M.Address, M.Size);
return std::error_code();
}
/// InvalidateInstructionCache - Before the JIT can run a block of code
/// that has been emitted it must invalidate the instruction cache on some
/// platforms.
void Memory::InvalidateInstructionCache(
const void *Addr, size_t Len) {
FlushInstructionCache(GetCurrentProcess(), Addr, Len);
}
} // namespace sys
} // namespace llvm

57
external/llvm/lib/Support/Windows/Mutex.inc vendored
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//===- llvm/Support/Win32/Mutex.inc - Win32 Mutex Implementation -*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements the Win32 specific (non-pthread) Mutex class.
//
//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
//=== WARNING: Implementation here must contain only generic Win32 code that
//=== is guaranteed to work on *all* Win32 variants.
//===----------------------------------------------------------------------===//
#include "WindowsSupport.h"
#include "llvm/Support/Mutex.h"
namespace llvm {
sys::MutexImpl::MutexImpl(bool /*recursive*/)
{
data_ = new CRITICAL_SECTION;
InitializeCriticalSection((LPCRITICAL_SECTION)data_);
}
sys::MutexImpl::~MutexImpl()
{
DeleteCriticalSection((LPCRITICAL_SECTION)data_);
delete (LPCRITICAL_SECTION)data_;
data_ = 0;
}
bool
sys::MutexImpl::acquire()
{
EnterCriticalSection((LPCRITICAL_SECTION)data_);
return true;
}
bool
sys::MutexImpl::release()
{
LeaveCriticalSection((LPCRITICAL_SECTION)data_);
return true;
}
bool
sys::MutexImpl::tryacquire()
{
return TryEnterCriticalSection((LPCRITICAL_SECTION)data_);
}
}

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external/llvm/lib/Support/Windows/Path.inc vendored
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461
external/llvm/lib/Support/Windows/Process.inc vendored
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//===- Win32/Process.cpp - Win32 Process Implementation ------- -*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file provides the Win32 specific implementation of the Process class.
//
//===----------------------------------------------------------------------===//
#include "llvm/Support/Allocator.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/WindowsError.h"
#include <malloc.h>
// The Windows.h header must be after LLVM and standard headers.
#include "WindowsSupport.h"
#include <direct.h>
#include <io.h>
#include <psapi.h>
#include <shellapi.h>
#ifdef __MINGW32__
#if (HAVE_LIBPSAPI != 1)
#error "libpsapi.a should be present"
#endif
#if (HAVE_LIBSHELL32 != 1)
#error "libshell32.a should be present"
#endif
#else
#pragma comment(lib, "psapi.lib")
#pragma comment(lib, "shell32.lib")
#endif
//===----------------------------------------------------------------------===//
//=== WARNING: Implementation here must contain only Win32 specific code
//=== and must not be UNIX code
//===----------------------------------------------------------------------===//
#ifdef __MINGW32__
// This ban should be lifted when MinGW 1.0+ has defined this value.
# define _HEAPOK (-2)
#endif
using namespace llvm;
// This function retrieves the page size using GetNativeSystemInfo() and is
// present solely so it can be called once to initialize the self_process member
// below.
static unsigned computePageSize() {
// GetNativeSystemInfo() provides the physical page size which may differ
// from GetSystemInfo() in 32-bit applications running under WOW64.
SYSTEM_INFO info;
GetNativeSystemInfo(&info);
// FIXME: FileOffset in MapViewOfFile() should be aligned to not dwPageSize,
// but dwAllocationGranularity.
return static_cast<unsigned>(info.dwPageSize);
}
unsigned Process::getPageSize() {
static unsigned Ret = computePageSize();
return Ret;
}
size_t
Process::GetMallocUsage()
{
_HEAPINFO hinfo;
hinfo._pentry = NULL;
size_t size = 0;
while (_heapwalk(&hinfo) == _HEAPOK)
size += hinfo._size;
return size;
}
void Process::GetTimeUsage(TimePoint<> &elapsed, std::chrono::nanoseconds &user_time,
std::chrono::nanoseconds &sys_time) {
elapsed = std::chrono::system_clock::now();;
FILETIME ProcCreate, ProcExit, KernelTime, UserTime;
if (GetProcessTimes(GetCurrentProcess(), &ProcCreate, &ProcExit, &KernelTime,
&UserTime) == 0)
return;
user_time = toDuration(UserTime);
sys_time = toDuration(KernelTime);
}
// Some LLVM programs such as bugpoint produce core files as a normal part of
// their operation. To prevent the disk from filling up, this configuration
// item does what's necessary to prevent their generation.
void Process::PreventCoreFiles() {
// Windows does have the concept of core files, called minidumps. However,
// disabling minidumps for a particular application extends past the lifetime
// of that application, which is the incorrect behavior for this API.
// Additionally, the APIs require elevated privileges to disable and re-
// enable minidumps, which makes this untenable. For more information, see
// WerAddExcludedApplication and WerRemoveExcludedApplication (Vista and
// later).
//
// Windows also has modal pop-up message boxes. As this method is used by
// bugpoint, preventing these pop-ups is additionally important.
SetErrorMode(SEM_FAILCRITICALERRORS |
SEM_NOGPFAULTERRORBOX |
SEM_NOOPENFILEERRORBOX);
coreFilesPrevented = true;
}
/// Returns the environment variable \arg Name's value as a string encoded in
/// UTF-8. \arg Name is assumed to be in UTF-8 encoding.
Optional<std::string> Process::GetEnv(StringRef Name) {
// Convert the argument to UTF-16 to pass it to _wgetenv().
SmallVector<wchar_t, 128> NameUTF16;
if (windows::UTF8ToUTF16(Name, NameUTF16))
return None;
// Environment variable can be encoded in non-UTF8 encoding, and there's no
// way to know what the encoding is. The only reliable way to look up
// multibyte environment variable is to use GetEnvironmentVariableW().
SmallVector<wchar_t, MAX_PATH> Buf;
size_t Size = MAX_PATH;
do {
Buf.reserve(Size);
SetLastError(NO_ERROR);
Size =
GetEnvironmentVariableW(NameUTF16.data(), Buf.data(), Buf.capacity());
if (Size == 0 && GetLastError() == ERROR_ENVVAR_NOT_FOUND)
return None;
// Try again with larger buffer.
} while (Size > Buf.capacity());
Buf.set_size(Size);
// Convert the result from UTF-16 to UTF-8.
SmallVector<char, MAX_PATH> Res;
if (windows::UTF16ToUTF8(Buf.data(), Size, Res))
return None;
return std::string(Res.data());
}
static void AllocateAndPush(const SmallVectorImpl<char> &S,
SmallVectorImpl<const char *> &Vector,
SpecificBumpPtrAllocator<char> &Allocator) {
char *Buffer = Allocator.Allocate(S.size() + 1);
::memcpy(Buffer, S.data(), S.size());
Buffer[S.size()] = '\0';
Vector.push_back(Buffer);
}
/// Convert Arg from UTF-16 to UTF-8 and push it onto Args.
static std::error_code
ConvertAndPushArg(const wchar_t *Arg, SmallVectorImpl<const char *> &Args,
SpecificBumpPtrAllocator<char> &Allocator) {
SmallVector<char, MAX_PATH> ArgString;
if (std::error_code ec = windows::UTF16ToUTF8(Arg, wcslen(Arg), ArgString))
return ec;
AllocateAndPush(ArgString, Args, Allocator);
return std::error_code();
}
/// \brief Perform wildcard expansion of Arg, or just push it into Args if it
/// doesn't have wildcards or doesn't match any files.
static std::error_code
WildcardExpand(const wchar_t *Arg, SmallVectorImpl<const char *> &Args,
SpecificBumpPtrAllocator<char> &Allocator) {
if (!wcspbrk(Arg, L"*?")) {
// Arg does not contain any wildcard characters. This is the common case.
return ConvertAndPushArg(Arg, Args, Allocator);
}
if (wcscmp(Arg, L"/?") == 0 || wcscmp(Arg, L"-?") == 0) {
// Don't wildcard expand /?. Always treat it as an option.
return ConvertAndPushArg(Arg, Args, Allocator);
}
// Extract any directory part of the argument.
SmallVector<char, MAX_PATH> Dir;
if (std::error_code ec = windows::UTF16ToUTF8(Arg, wcslen(Arg), Dir))
return ec;
sys::path::remove_filename(Dir);
const int DirSize = Dir.size();
// Search for matching files.
// FIXME: This assumes the wildcard is only in the file name and not in the
// directory portion of the file path. For example, it doesn't handle
// "*\foo.c" nor "s?c\bar.cpp".
WIN32_FIND_DATAW FileData;
HANDLE FindHandle = FindFirstFileW(Arg, &FileData);
if (FindHandle == INVALID_HANDLE_VALUE) {
return ConvertAndPushArg(Arg, Args, Allocator);
}
std::error_code ec;
do {
SmallVector<char, MAX_PATH> FileName;
ec = windows::UTF16ToUTF8(FileData.cFileName, wcslen(FileData.cFileName),
FileName);
if (ec)
break;
// Append FileName to Dir, and remove it afterwards.
llvm::sys::path::append(Dir, StringRef(FileName.data(), FileName.size()));
AllocateAndPush(Dir, Args, Allocator);
Dir.resize(DirSize);
} while (FindNextFileW(FindHandle, &FileData));
FindClose(FindHandle);
return ec;
}
static std::error_code
ExpandShortFileName(const wchar_t *Arg, SmallVectorImpl<const char *> &Args,
SpecificBumpPtrAllocator<char> &Allocator) {
SmallVector<wchar_t, MAX_PATH> LongPath;
DWORD Length = GetLongPathNameW(Arg, LongPath.data(), LongPath.capacity());
if (Length == 0)
return mapWindowsError(GetLastError());
if (Length > LongPath.capacity()) {
// We're not going to try to deal with paths longer than MAX_PATH, so we'll
// treat this as an error. GetLastError() returns ERROR_SUCCESS, which
// isn't useful, so we'll hardcode an appropriate error value.
return mapWindowsError(ERROR_INSUFFICIENT_BUFFER);
}
LongPath.set_size(Length);
return ConvertAndPushArg(LongPath.data(), Args, Allocator);
}
std::error_code
Process::GetArgumentVector(SmallVectorImpl<const char *> &Args,
ArrayRef<const char *>,
SpecificBumpPtrAllocator<char> &ArgAllocator) {
int ArgCount;
wchar_t **UnicodeCommandLine =
CommandLineToArgvW(GetCommandLineW(), &ArgCount);
if (!UnicodeCommandLine)
return mapWindowsError(::GetLastError());
Args.reserve(ArgCount);
std::error_code ec;
// The first argument may contain just the name of the executable (e.g.,
// "clang") rather than the full path, so swap it with the full path.
wchar_t ModuleName[MAX_PATH];
int Length = ::GetModuleFileNameW(NULL, ModuleName, MAX_PATH);
if (0 < Length && Length < MAX_PATH)
UnicodeCommandLine[0] = ModuleName;
// If the first argument is a shortened (8.3) name (which is possible even
// if we got the module name), the driver will have trouble distinguishing it
// (e.g., clang.exe v. clang++.exe), so expand it now.
ec = ExpandShortFileName(UnicodeCommandLine[0], Args, ArgAllocator);
for (int i = 1; i < ArgCount && !ec; ++i) {
ec = WildcardExpand(UnicodeCommandLine[i], Args, ArgAllocator);
if (ec)
break;
}
LocalFree(UnicodeCommandLine);
return ec;
}
std::error_code Process::FixupStandardFileDescriptors() {
return std::error_code();
}
std::error_code Process::SafelyCloseFileDescriptor(int FD) {
if (::close(FD) < 0)
return std::error_code(errno, std::generic_category());
return std::error_code();
}
bool Process::StandardInIsUserInput() {
return FileDescriptorIsDisplayed(0);
}
bool Process::StandardOutIsDisplayed() {
return FileDescriptorIsDisplayed(1);
}
bool Process::StandardErrIsDisplayed() {
return FileDescriptorIsDisplayed(2);
}
bool Process::FileDescriptorIsDisplayed(int fd) {
DWORD Mode; // Unused
return (GetConsoleMode((HANDLE)_get_osfhandle(fd), &Mode) != 0);
}
unsigned Process::StandardOutColumns() {
unsigned Columns = 0;
CONSOLE_SCREEN_BUFFER_INFO csbi;
if (GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &csbi))
Columns = csbi.dwSize.X;
return Columns;
}
unsigned Process::StandardErrColumns() {
unsigned Columns = 0;
CONSOLE_SCREEN_BUFFER_INFO csbi;
if (GetConsoleScreenBufferInfo(GetStdHandle(STD_ERROR_HANDLE), &csbi))
Columns = csbi.dwSize.X;
return Columns;
}
// The terminal always has colors.
bool Process::FileDescriptorHasColors(int fd) {
return FileDescriptorIsDisplayed(fd);
}
bool Process::StandardOutHasColors() {
return FileDescriptorHasColors(1);
}
bool Process::StandardErrHasColors() {
return FileDescriptorHasColors(2);
}
static bool UseANSI = false;
void Process::UseANSIEscapeCodes(bool enable) {
UseANSI = enable;
}
namespace {
class DefaultColors
{
private:
WORD defaultColor;
public:
DefaultColors()
:defaultColor(GetCurrentColor()) {}
static unsigned GetCurrentColor() {
CONSOLE_SCREEN_BUFFER_INFO csbi;
if (GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &csbi))
return csbi.wAttributes;
return 0;
}
WORD operator()() const { return defaultColor; }
};
DefaultColors defaultColors;
WORD fg_color(WORD color) {
return color & (FOREGROUND_BLUE | FOREGROUND_GREEN |
FOREGROUND_INTENSITY | FOREGROUND_RED);
}
WORD bg_color(WORD color) {
return color & (BACKGROUND_BLUE | BACKGROUND_GREEN |
BACKGROUND_INTENSITY | BACKGROUND_RED);
}
}
bool Process::ColorNeedsFlush() {
return !UseANSI;
}
const char *Process::OutputBold(bool bg) {
if (UseANSI) return "\033[1m";
WORD colors = DefaultColors::GetCurrentColor();
if (bg)
colors |= BACKGROUND_INTENSITY;
else
colors |= FOREGROUND_INTENSITY;
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), colors);
return 0;
}
const char *Process::OutputColor(char code, bool bold, bool bg) {
if (UseANSI) return colorcodes[bg?1:0][bold?1:0][code&7];
WORD current = DefaultColors::GetCurrentColor();
WORD colors;
if (bg) {
colors = ((code&1) ? BACKGROUND_RED : 0) |
((code&2) ? BACKGROUND_GREEN : 0 ) |
((code&4) ? BACKGROUND_BLUE : 0);
if (bold)
colors |= BACKGROUND_INTENSITY;
colors |= fg_color(current);
} else {
colors = ((code&1) ? FOREGROUND_RED : 0) |
((code&2) ? FOREGROUND_GREEN : 0 ) |
((code&4) ? FOREGROUND_BLUE : 0);
if (bold)
colors |= FOREGROUND_INTENSITY;
colors |= bg_color(current);
}
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), colors);
return 0;
}
static WORD GetConsoleTextAttribute(HANDLE hConsoleOutput) {
CONSOLE_SCREEN_BUFFER_INFO info;
GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &info);
return info.wAttributes;
}
const char *Process::OutputReverse() {
if (UseANSI) return "\033[7m";
const WORD attributes
= GetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE));
const WORD foreground_mask = FOREGROUND_BLUE | FOREGROUND_GREEN |
FOREGROUND_RED | FOREGROUND_INTENSITY;
const WORD background_mask = BACKGROUND_BLUE | BACKGROUND_GREEN |
BACKGROUND_RED | BACKGROUND_INTENSITY;
const WORD color_mask = foreground_mask | background_mask;
WORD new_attributes =
((attributes & FOREGROUND_BLUE )?BACKGROUND_BLUE :0) |
((attributes & FOREGROUND_GREEN )?BACKGROUND_GREEN :0) |
((attributes & FOREGROUND_RED )?BACKGROUND_RED :0) |
((attributes & FOREGROUND_INTENSITY)?BACKGROUND_INTENSITY:0) |
((attributes & BACKGROUND_BLUE )?FOREGROUND_BLUE :0) |
((attributes & BACKGROUND_GREEN )?FOREGROUND_GREEN :0) |
((attributes & BACKGROUND_RED )?FOREGROUND_RED :0) |
((attributes & BACKGROUND_INTENSITY)?FOREGROUND_INTENSITY:0) |
0;
new_attributes = (attributes & ~color_mask) | (new_attributes & color_mask);
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), new_attributes);
return 0;
}
const char *Process::ResetColor() {
if (UseANSI) return "\033[0m";
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), defaultColors());
return 0;
}
// Include GetLastError() in a fatal error message.
static void ReportLastErrorFatal(const char *Msg) {
std::string ErrMsg;
MakeErrMsg(&ErrMsg, Msg);
report_fatal_error(ErrMsg);
}
unsigned Process::GetRandomNumber() {
HCRYPTPROV HCPC;
if (!::CryptAcquireContextW(&HCPC, NULL, NULL, PROV_RSA_FULL,
CRYPT_VERIFYCONTEXT))
ReportLastErrorFatal("Could not acquire a cryptographic context");
ScopedCryptContext CryptoProvider(HCPC);
unsigned Ret;
if (!::CryptGenRandom(CryptoProvider, sizeof(Ret),
reinterpret_cast<BYTE *>(&Ret)))
ReportLastErrorFatal("Could not generate a random number");
return Ret;
}

554
external/llvm/lib/Support/Windows/Program.inc vendored
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129
external/llvm/lib/Support/Windows/RWMutex.inc vendored
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//= llvm/Support/Win32/Mutex.inc - Win32 Reader/Writer Mutual Exclusion Lock =//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements the Win32 specific (non-pthread) RWMutex class.
//
//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
//=== WARNING: Implementation here must contain only generic Win32 code that
//=== is guaranteed to work on *all* Win32 variants.
//===----------------------------------------------------------------------===//
#include "WindowsSupport.h"
namespace llvm {
// Windows has slim read-writer lock support on Vista and higher, so we
// will attempt to load the APIs. If they exist, we will use them, and
// if not, we will fall back on critical sections. When we drop support
// for XP, we can stop lazy-loading these APIs and just use them directly.
#if defined(__MINGW32__)
// Taken from WinNT.h
typedef struct _RTL_SRWLOCK {
PVOID Ptr;
} RTL_SRWLOCK, *PRTL_SRWLOCK;
// Taken from WinBase.h
typedef RTL_SRWLOCK SRWLOCK, *PSRWLOCK;
#endif
static VOID (WINAPI *fpInitializeSRWLock)(PSRWLOCK lock) = NULL;
static VOID (WINAPI *fpAcquireSRWLockExclusive)(PSRWLOCK lock) = NULL;
static VOID (WINAPI *fpAcquireSRWLockShared)(PSRWLOCK lock) = NULL;
static VOID (WINAPI *fpReleaseSRWLockExclusive)(PSRWLOCK lock) = NULL;
static VOID (WINAPI *fpReleaseSRWLockShared)(PSRWLOCK lock) = NULL;
static bool sHasSRW = false;
static bool loadSRW() {
static bool sChecked = false;
if (!sChecked) {
sChecked = true;
if (HMODULE hLib = ::GetModuleHandleW(L"Kernel32.dll")) {
fpInitializeSRWLock =
(VOID (WINAPI *)(PSRWLOCK))::GetProcAddress(hLib,
"InitializeSRWLock");
fpAcquireSRWLockExclusive =
(VOID (WINAPI *)(PSRWLOCK))::GetProcAddress(hLib,
"AcquireSRWLockExclusive");
fpAcquireSRWLockShared =
(VOID (WINAPI *)(PSRWLOCK))::GetProcAddress(hLib,
"AcquireSRWLockShared");
fpReleaseSRWLockExclusive =
(VOID (WINAPI *)(PSRWLOCK))::GetProcAddress(hLib,
"ReleaseSRWLockExclusive");
fpReleaseSRWLockShared =
(VOID (WINAPI *)(PSRWLOCK))::GetProcAddress(hLib,
"ReleaseSRWLockShared");
if (fpInitializeSRWLock != NULL) {
sHasSRW = true;
}
}
}
return sHasSRW;
}
sys::RWMutexImpl::RWMutexImpl() {
if (loadSRW()) {
data_ = calloc(1, sizeof(SRWLOCK));
fpInitializeSRWLock(static_cast<PSRWLOCK>(data_));
} else {
data_ = calloc(1, sizeof(CRITICAL_SECTION));
InitializeCriticalSection(static_cast<LPCRITICAL_SECTION>(data_));
}
}
sys::RWMutexImpl::~RWMutexImpl() {
if (!sHasSRW)
DeleteCriticalSection(static_cast<LPCRITICAL_SECTION>(data_));
// Nothing to do in the case of slim reader/writers except free the memory.
free(data_);
}
bool sys::RWMutexImpl::reader_acquire() {
if (sHasSRW) {
fpAcquireSRWLockShared(static_cast<PSRWLOCK>(data_));
} else {
EnterCriticalSection(static_cast<LPCRITICAL_SECTION>(data_));
}
return true;
}
bool sys::RWMutexImpl::reader_release() {
if (sHasSRW) {
fpReleaseSRWLockShared(static_cast<PSRWLOCK>(data_));
} else {
LeaveCriticalSection(static_cast<LPCRITICAL_SECTION>(data_));
}
return true;
}
bool sys::RWMutexImpl::writer_acquire() {
if (sHasSRW) {
fpAcquireSRWLockExclusive(static_cast<PSRWLOCK>(data_));
} else {
EnterCriticalSection(static_cast<LPCRITICAL_SECTION>(data_));
}
return true;
}
bool sys::RWMutexImpl::writer_release() {
if (sHasSRW) {
fpReleaseSRWLockExclusive(static_cast<PSRWLOCK>(data_));
} else {
LeaveCriticalSection(static_cast<LPCRITICAL_SECTION>(data_));
}
return true;
}
}

864
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52
external/llvm/lib/Support/Windows/ThreadLocal.inc vendored
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//= llvm/Support/Win32/ThreadLocal.inc - Win32 Thread Local Data -*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements the Win32 specific (non-pthread) ThreadLocal class.
//
//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
//=== WARNING: Implementation here must contain only generic Win32 code that
//=== is guaranteed to work on *all* Win32 variants.
//===----------------------------------------------------------------------===//
#include "WindowsSupport.h"
#include "llvm/Support/ThreadLocal.h"
namespace llvm {
sys::ThreadLocalImpl::ThreadLocalImpl() : data() {
static_assert(sizeof(DWORD) <= sizeof(data), "size too big");
DWORD* tls = reinterpret_cast<DWORD*>(&data);
*tls = TlsAlloc();
assert(*tls != TLS_OUT_OF_INDEXES);
}
sys::ThreadLocalImpl::~ThreadLocalImpl() {
DWORD* tls = reinterpret_cast<DWORD*>(&data);
TlsFree(*tls);
}
void *sys::ThreadLocalImpl::getInstance() {
DWORD* tls = reinterpret_cast<DWORD*>(&data);
return TlsGetValue(*tls);
}
void sys::ThreadLocalImpl::setInstance(const void* d){
DWORD* tls = reinterpret_cast<DWORD*>(&data);
int errorcode = TlsSetValue(*tls, const_cast<void*>(d));
assert(errorcode != 0);
(void)errorcode;
}
void sys::ThreadLocalImpl::removeInstance() {
setInstance(0);
}
}

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external/llvm/lib/Support/Windows/Threading.inc vendored
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//===- Windows/Threading.inc - Win32 Threading Implementation - -*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file provides the Win32 specific implementation of Threading functions.
//
//===----------------------------------------------------------------------===//
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/Twine.h"
#include "Windows/WindowsSupport.h"
#include <process.h>
// Windows will at times define MemoryFence.
#ifdef MemoryFence
#undef MemoryFence
#endif
namespace {
struct ThreadInfo {
void(*func)(void*);
void *param;
};
}
static unsigned __stdcall ThreadCallback(void *param) {
struct ThreadInfo *info = reinterpret_cast<struct ThreadInfo *>(param);
info->func(info->param);
return 0;
}
void llvm::llvm_execute_on_thread(void(*Fn)(void*), void *UserData,
unsigned RequestedStackSize) {
struct ThreadInfo param = { Fn, UserData };
HANDLE hThread = (HANDLE)::_beginthreadex(NULL,
RequestedStackSize, ThreadCallback,
&param, 0, NULL);
if (hThread) {
// We actually don't care whether the wait succeeds or fails, in
// the same way we don't care whether the pthread_join call succeeds
// or fails. There's not much we could do if this were to fail. But
// on success, this call will wait until the thread finishes executing
// before returning.
(void)::WaitForSingleObject(hThread, INFINITE);
::CloseHandle(hThread);
}
}
uint64_t llvm::get_threadid() {
return uint64_t(::GetCurrentThreadId());
}
uint32_t llvm::get_max_thread_name_length() { return 0; }
#if defined(_MSC_VER)
static void SetThreadName(DWORD Id, LPCSTR Name) {
constexpr DWORD MS_VC_EXCEPTION = 0x406D1388;
#pragma pack(push, 8)
struct THREADNAME_INFO {
DWORD dwType; // Must be 0x1000.
LPCSTR szName; // Pointer to thread name
DWORD dwThreadId; // Thread ID (-1 == current thread)
DWORD dwFlags; // Reserved. Do not use.
};
#pragma pack(pop)
THREADNAME_INFO info;
info.dwType = 0x1000;
info.szName = Name;
info.dwThreadId = Id;
info.dwFlags = 0;
__try {
::RaiseException(MS_VC_EXCEPTION, 0, sizeof(info) / sizeof(ULONG_PTR),
(ULONG_PTR *)&info);
}
__except (EXCEPTION_EXECUTE_HANDLER) {
}
}
#endif
void llvm::set_thread_name(const Twine &Name) {
#if defined(_MSC_VER)
// Make sure the input is null terminated.
SmallString<64> Storage;
StringRef NameStr = Name.toNullTerminatedStringRef(Storage);
SetThreadName(::GetCurrentThreadId(), NameStr.data());
#endif
}
void llvm::get_thread_name(SmallVectorImpl<char> &Name) {
// "Name" is not an inherent property of a thread on Windows. In fact, when
// you "set" the name, you are only firing a one-time message to a debugger
// which it interprets as a program setting its threads' name. We may be
// able to get fancy by creating a TLS entry when someone calls
// set_thread_name so that subsequent calls to get_thread_name return this
// value.
Name.clear();
}

24
external/llvm/lib/Support/Windows/Watchdog.inc vendored
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//===--- Windows/Watchdog.inc - Windows Watchdog Implementation -*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file provides the generic Windows implementation of the Watchdog class.
//
//===----------------------------------------------------------------------===//
// TODO: implement.
// Currently this is only used by PrettyStackTrace which is also unimplemented
// on Windows. Roughly, a Windows implementation would use CreateWaitableTimer
// and a second thread to run the TimerAPCProc.
namespace llvm {
namespace sys {
Watchdog::Watchdog(unsigned int seconds) {}
Watchdog::~Watchdog() {}
}
}

266
external/llvm/lib/Support/Windows/WindowsSupport.h vendored
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//===- WindowsSupport.h - Common Windows Include File -----------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines things specific to Windows implementations. In addition to
// providing some helpers for working with win32 APIs, this header wraps
// <windows.h> with some portability macros. Always include WindowsSupport.h
// instead of including <windows.h> directly.
//
//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
//=== WARNING: Implementation here must contain only generic Win32 code that
//=== is guaranteed to work on *all* Win32 variants.
//===----------------------------------------------------------------------===//
#ifndef LLVM_SUPPORT_WINDOWSSUPPORT_H
#define LLVM_SUPPORT_WINDOWSSUPPORT_H
// mingw-w64 tends to define it as 0x0502 in its headers.
#undef _WIN32_WINNT
#undef _WIN32_IE
// Require at least Windows 7 API.
#define _WIN32_WINNT 0x0601
#define _WIN32_IE 0x0800 // MinGW at it again. FIXME: verify if still needed.
#define WIN32_LEAN_AND_MEAN
#ifndef NOMINMAX
#define NOMINMAX
#endif
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/Twine.h"
#include "llvm/Config/config.h" // Get build system configuration settings
#include "llvm/Support/Chrono.h"
#include "llvm/Support/Compiler.h"
#include <cassert>
#include <string>
#include <system_error>
#include <windows.h>
// Must be included after windows.h
#include <wincrypt.h>
/// Determines if the program is running on Windows 8 or newer. This
/// reimplements one of the helpers in the Windows 8.1 SDK, which are intended
/// to supercede raw calls to GetVersionEx. Old SDKs, Cygwin, and MinGW don't
/// yet have VersionHelpers.h, so we have our own helper.
inline bool RunningWindows8OrGreater() {
// Windows 8 is version 6.2, service pack 0.
OSVERSIONINFOEXW osvi = {};
osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
osvi.dwMajorVersion = 6;
osvi.dwMinorVersion = 2;
osvi.wServicePackMajor = 0;
DWORDLONG Mask = 0;
Mask = VerSetConditionMask(Mask, VER_MAJORVERSION, VER_GREATER_EQUAL);
Mask = VerSetConditionMask(Mask, VER_MINORVERSION, VER_GREATER_EQUAL);
Mask = VerSetConditionMask(Mask, VER_SERVICEPACKMAJOR, VER_GREATER_EQUAL);
return VerifyVersionInfoW(&osvi, VER_MAJORVERSION | VER_MINORVERSION |
VER_SERVICEPACKMAJOR,
Mask) != FALSE;
}
inline bool MakeErrMsg(std::string *ErrMsg, const std::string &prefix) {
if (!ErrMsg)
return true;
char *buffer = NULL;
DWORD LastError = GetLastError();
DWORD R = FormatMessageA(FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_MAX_WIDTH_MASK,
NULL, LastError, 0, (LPSTR)&buffer, 1, NULL);
if (R)
*ErrMsg = prefix + ": " + buffer;
else
*ErrMsg = prefix + ": Unknown error";
*ErrMsg += " (0x" + llvm::utohexstr(LastError) + ")";
LocalFree(buffer);
return R != 0;
}
template <typename HandleTraits>
class ScopedHandle {
typedef typename HandleTraits::handle_type handle_type;
handle_type Handle;
ScopedHandle(const ScopedHandle &other); // = delete;
void operator=(const ScopedHandle &other); // = delete;
public:
ScopedHandle()
: Handle(HandleTraits::GetInvalid()) {}
explicit ScopedHandle(handle_type h)
: Handle(h) {}
~ScopedHandle() {
if (HandleTraits::IsValid(Handle))
HandleTraits::Close(Handle);
}
handle_type take() {
handle_type t = Handle;
Handle = HandleTraits::GetInvalid();
return t;
}
ScopedHandle &operator=(handle_type h) {
if (HandleTraits::IsValid(Handle))
HandleTraits::Close(Handle);
Handle = h;
return *this;
}
// True if Handle is valid.
explicit operator bool() const {
return HandleTraits::IsValid(Handle) ? true : false;
}
operator handle_type() const {
return Handle;
}
};
struct CommonHandleTraits {
typedef HANDLE handle_type;
static handle_type GetInvalid() {
return INVALID_HANDLE_VALUE;
}
static void Close(handle_type h) {
::CloseHandle(h);
}
static bool IsValid(handle_type h) {
return h != GetInvalid();
}
};
struct JobHandleTraits : CommonHandleTraits {
static handle_type GetInvalid() {
return NULL;
}
};
struct CryptContextTraits : CommonHandleTraits {
typedef HCRYPTPROV handle_type;
static handle_type GetInvalid() {
return 0;
}
static void Close(handle_type h) {
::CryptReleaseContext(h, 0);
}
static bool IsValid(handle_type h) {
return h != GetInvalid();
}
};
struct RegTraits : CommonHandleTraits {
typedef HKEY handle_type;
static handle_type GetInvalid() {
return NULL;
}
static void Close(handle_type h) {
::RegCloseKey(h);
}
static bool IsValid(handle_type h) {
return h != GetInvalid();
}
};
struct FindHandleTraits : CommonHandleTraits {
static void Close(handle_type h) {
::FindClose(h);
}
};
struct FileHandleTraits : CommonHandleTraits {};
typedef ScopedHandle<CommonHandleTraits> ScopedCommonHandle;
typedef ScopedHandle<FileHandleTraits> ScopedFileHandle;
typedef ScopedHandle<CryptContextTraits> ScopedCryptContext;
typedef ScopedHandle<RegTraits> ScopedRegHandle;
typedef ScopedHandle<FindHandleTraits> ScopedFindHandle;
typedef ScopedHandle<JobHandleTraits> ScopedJobHandle;
namespace llvm {
template <class T>
class SmallVectorImpl;
template <class T>
typename SmallVectorImpl<T>::const_pointer
c_str(SmallVectorImpl<T> &str) {
str.push_back(0);
str.pop_back();
return str.data();
}
namespace sys {
inline std::chrono::nanoseconds toDuration(FILETIME Time) {
ULARGE_INTEGER TimeInteger;
TimeInteger.LowPart = Time.dwLowDateTime;
TimeInteger.HighPart = Time.dwHighDateTime;
// FILETIME's are # of 100 nanosecond ticks (1/10th of a microsecond)
return std::chrono::nanoseconds(100 * TimeInteger.QuadPart);
}
inline TimePoint<> toTimePoint(FILETIME Time) {
ULARGE_INTEGER TimeInteger;
TimeInteger.LowPart = Time.dwLowDateTime;
TimeInteger.HighPart = Time.dwHighDateTime;
// Adjust for different epoch
TimeInteger.QuadPart -= 11644473600ll * 10000000;
// FILETIME's are # of 100 nanosecond ticks (1/10th of a microsecond)
return TimePoint<>(std::chrono::nanoseconds(100 * TimeInteger.QuadPart));
}
inline FILETIME toFILETIME(TimePoint<> TP) {
ULARGE_INTEGER TimeInteger;
TimeInteger.QuadPart = TP.time_since_epoch().count() / 100;
TimeInteger.QuadPart += 11644473600ll * 10000000;
FILETIME Time;
Time.dwLowDateTime = TimeInteger.LowPart;
Time.dwHighDateTime = TimeInteger.HighPart;
return Time;
}
namespace path {
std::error_code widenPath(const Twine &Path8,
SmallVectorImpl<wchar_t> &Path16);
} // end namespace path
namespace windows {
std::error_code UTF8ToUTF16(StringRef utf8, SmallVectorImpl<wchar_t> &utf16);
std::error_code UTF16ToUTF8(const wchar_t *utf16, size_t utf16_len,
SmallVectorImpl<char> &utf8);
/// Convert from UTF16 to the current code page used in the system
std::error_code UTF16ToCurCP(const wchar_t *utf16, size_t utf16_len,
SmallVectorImpl<char> &utf8);
} // end namespace windows
} // end namespace sys
} // end namespace llvm.
#endif

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/* in libgcc.a */
#ifdef HAVE__ALLOCA
EXPLICIT_SYMBOL(_alloca)
EXPLICIT_SYMBOL2(alloca, _alloca)
#endif
#ifdef HAVE___ALLOCA
EXPLICIT_SYMBOL(__alloca)
#endif
#ifdef HAVE___CHKSTK
EXPLICIT_SYMBOL(__chkstk)
#endif
#ifdef HAVE___CHKSTK_MS
EXPLICIT_SYMBOL(__chkstk_ms)
#endif
#ifdef HAVE____CHKSTK
EXPLICIT_SYMBOL(___chkstk)
#endif
#ifdef HAVE____CHKSTK_MS
EXPLICIT_SYMBOL(___chkstk_ms)
#endif
#ifdef HAVE___MAIN
EXPLICIT_SYMBOL(__main) // FIXME: Don't call it.
#endif
#ifdef HAVE___ASHLDI3
EXPLICIT_SYMBOL(__ashldi3)
#endif
#ifdef HAVE___ASHRDI3
EXPLICIT_SYMBOL(__ashrdi3)
#endif
#ifdef HAVE___CMPDI2 // FIXME: unused
EXPLICIT_SYMBOL(__cmpdi2)
#endif
#ifdef HAVE___DIVDI3
EXPLICIT_SYMBOL(__divdi3)
#endif
#ifdef HAVE___FIXDFDI
EXPLICIT_SYMBOL(__fixdfdi)
#endif
#ifdef HAVE___FIXSFDI
EXPLICIT_SYMBOL(__fixsfdi)
#endif
#ifdef HAVE___FIXUNSDFDI
EXPLICIT_SYMBOL(__fixunsdfdi)
#endif
#ifdef HAVE___FIXUNSSFDI
EXPLICIT_SYMBOL(__fixunssfdi)
#endif
#ifdef HAVE___FLOATDIDF
EXPLICIT_SYMBOL(__floatdidf)
#endif
#ifdef HAVE___FLOATDISF
EXPLICIT_SYMBOL(__floatdisf)
#endif
#ifdef HAVE___LSHRDI3
EXPLICIT_SYMBOL(__lshrdi3)
#endif
#ifdef HAVE___MODDI3
EXPLICIT_SYMBOL(__moddi3)
#endif
#ifdef HAVE___UDIVDI3
EXPLICIT_SYMBOL(__udivdi3)
#endif
#ifdef HAVE___UMODDI3
EXPLICIT_SYMBOL(__umoddi3)
#endif
/* msvcrt */
#if defined(_MSC_VER)
EXPLICIT_SYMBOL2(alloca, _alloca_probe)
#ifdef _M_IX86
#define INLINE_DEF_FLOAT_SYMBOL(SYM, ARGC) INLINE_DEF_SYMBOL##ARGC(float, SYM)
INLINE_DEF_FLOAT_SYMBOL(acosf, 1)
INLINE_DEF_FLOAT_SYMBOL(asinf, 1)
INLINE_DEF_FLOAT_SYMBOL(atanf, 1)
INLINE_DEF_FLOAT_SYMBOL(atan2f, 2)
INLINE_DEF_FLOAT_SYMBOL(ceilf, 1)
INLINE_DEF_FLOAT_SYMBOL(cosf, 1)
INLINE_DEF_FLOAT_SYMBOL(coshf, 1)
INLINE_DEF_FLOAT_SYMBOL(expf, 1)
INLINE_DEF_FLOAT_SYMBOL(floorf, 1)
INLINE_DEF_FLOAT_SYMBOL(fmodf, 2)
INLINE_DEF_FLOAT_SYMBOL(logf, 1)
INLINE_DEF_FLOAT_SYMBOL(powf, 2)
INLINE_DEF_FLOAT_SYMBOL(sinf, 1)
INLINE_DEF_FLOAT_SYMBOL(sinhf, 1)
INLINE_DEF_FLOAT_SYMBOL(sqrtf, 1)
INLINE_DEF_FLOAT_SYMBOL(tanf, 1)
INLINE_DEF_FLOAT_SYMBOL(tanhf, 1)
// These were added in VS 2013.
#if (1800 <= _MSC_VER && _MSC_VER < 1900)
INLINE_DEF_FLOAT_SYMBOL(copysignf, 2)
INLINE_DEF_FLOAT_SYMBOL(fminf, 2)
INLINE_DEF_FLOAT_SYMBOL(fmaxf, 2)
#endif
#undef INLINE_DEF_FLOAT_SYMBOL
#endif
#endif