//===----------------------------------------------------------------------===//
#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.
using namespace llvm;
using namespace sys;
-
process::id_type self_process::get_id() {
return GetCurrentProcessId();
}
return getTimeValueFromFILETIME(KernelTime);
}
-// This function retrieves the page size using GetSystemInfo and is present
-// solely so it can be called once to initialize the self_process member below.
+// 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 getPageSize() {
- // NOTE: A 32-bit application running under WOW64 is supposed to use
- // GetNativeSystemInfo. However, this interface is not present prior
- // to Windows XP so to use it requires dynamic linking. It is not clear
- // how this affects the reported page size, if at all. One could argue
- // that LLVM ought to run as 64-bits on a 64-bit system, anyway.
+ // GetNativeSystemInfo() provides the physical page size which may differ
+ // from GetSystemInfo() in 32-bit applications running under WOW64.
SYSTEM_INFO info;
- GetSystemInfo(&info);
+ GetNativeSystemInfo(&info);
// FIXME: FileOffset in MapViewOfFile() should be aligned to not dwPageSize,
// but dwAllocationGranularity.
return static_cast<unsigned>(info.dwPageSize);
Optional<std::string> Process::GetEnv(StringRef Name) {
// Convert the argument to UTF-16 to pass it to _wgetenv().
SmallVector<wchar_t, 128> NameUTF16;
- if (error_code ec = windows::UTF8ToUTF16(Name, NameUTF16))
+ if (windows::UTF8ToUTF16(Name, NameUTF16))
return None;
// Environment variable can be encoded in non-UTF8 encoding, and there's no
// Convert the result from UTF-16 to UTF-8.
SmallVector<char, MAX_PATH> Res;
- if (error_code ec = windows::UTF16ToUTF8(Buf.data(), Size, Res))
+ if (windows::UTF16ToUTF8(Buf.data(), Size, Res))
return None;
return std::string(Res.data());
}
-error_code
+static std::error_code windows_error(DWORD E) {
+ return mapWindowsError(E);
+}
+
+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.
+ 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;
+
+ // Push the filename onto 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;
+}
+
+std::error_code
Process::GetArgumentVector(SmallVectorImpl<const char *> &Args,
ArrayRef<const char *>,
SpecificBumpPtrAllocator<char> &ArgAllocator) {
- int NewArgCount;
- error_code ec;
-
- wchar_t **UnicodeCommandLine = CommandLineToArgvW(GetCommandLineW(),
- &NewArgCount);
+ int ArgCount;
+ wchar_t **UnicodeCommandLine =
+ CommandLineToArgvW(GetCommandLineW(), &ArgCount);
if (!UnicodeCommandLine)
return windows_error(::GetLastError());
- Args.reserve(NewArgCount);
+ Args.reserve(ArgCount);
+ std::error_code ec;
- for (int i = 0; i < NewArgCount; ++i) {
- SmallVector<char, MAX_PATH> NewArgString;
- ec = windows::UTF16ToUTF8(UnicodeCommandLine[i],
- wcslen(UnicodeCommandLine[i]),
- NewArgString);
+ for (int i = 0; i < ArgCount; ++i) {
+ ec = WildcardExpand(UnicodeCommandLine[i], Args, ArgAllocator);
if (ec)
break;
-
- char *Buffer = ArgAllocator.Allocate(NewArgString.size() + 1);
- ::memcpy(Buffer, NewArgString.data(), NewArgString.size() + 1);
- Args.push_back(Buffer);
}
- LocalFree(UnicodeCommandLine);
- if (ec)
- return ec;
- return error_code::success();
+ LocalFree(UnicodeCommandLine);
+ return ec;
}
bool Process::StandardInIsUserInput() {
HCRYPTPROV HCPC;
if (!::CryptAcquireContextW(&HCPC, NULL, NULL, PROV_RSA_FULL,
CRYPT_VERIFYCONTEXT))
- assert(false && "Could not acquire a cryptographic context");
+ report_fatal_error("Could not acquire a cryptographic context");
ScopedCryptContext CryptoProvider(HCPC);
unsigned Ret;
if (!::CryptGenRandom(CryptoProvider, sizeof(Ret),
reinterpret_cast<BYTE *>(&Ret)))
- assert(false && "Could not generate a random number");
+ report_fatal_error("Could not generate a random number");
return Ret;
}
projects / oota-llvm.git / blobdiff