Merge System into Support.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120298 91177308-0d34-0410-b5e6-96231b3b80d8

51 files changed, 0 insertions, 7401 deletions

diff --git a/lib/System/Alarm.cpp b/lib/System/Alarm.cpp
deleted file mode 100644
index 0014ca716b..0000000000
--- a/lib/System/Alarm.cpp
+++ /dev/null
@@ -1,33 +0,0 @@
-//===- Alarm.cpp - Alarm Generation Support ---------------------*- 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 Alarm functionality 
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/System/Alarm.h"
-#include "llvm/Config/config.h"
-
-namespace llvm {
-using namespace sys;
-
-//===----------------------------------------------------------------------===//
-//=== WARNING: Implementation here must contain only TRULY operating system
-//===          independent code.
-//===----------------------------------------------------------------------===//
-
-}
-
-// Include the platform-specific parts of this class.
-#ifdef LLVM_ON_UNIX
-#include "Unix/Alarm.inc"
-#endif
-#ifdef LLVM_ON_WIN32
-#include "Win32/Alarm.inc"
-#endif
diff --git a/lib/System/Atomic.cpp b/lib/System/Atomic.cpp
deleted file mode 100644
index 7ba8b774d5..0000000000
--- a/lib/System/Atomic.cpp
+++ /dev/null
@@ -1,112 +0,0 @@
-//===-- Atomic.cpp - Atomic Operations --------------------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-//  This header file implements atomic operations.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/System/Atomic.h"
-#include "llvm/Config/config.h"
-
-using namespace llvm;
-
-#if defined(_MSC_VER)
-#include <windows.h>
-#undef MemoryFence
-#endif
-
-void sys::MemoryFence() {
-#if LLVM_MULTITHREADED==0
-  return;
-#else
-#  if defined(__GNUC__)
-  __sync_synchronize();
-#  elif defined(_MSC_VER)
-  MemoryBarrier();
-#  else
-# error No memory fence implementation for your platform!
-#  endif
-#endif
-}
-
-sys::cas_flag sys::CompareAndSwap(volatile sys::cas_flag* ptr,
-                                  sys::cas_flag new_value,
-                                  sys::cas_flag old_value) {
-#if LLVM_MULTITHREADED==0
-  sys::cas_flag result = *ptr;
-  if (result == old_value)
-    *ptr = new_value;
-  return result;
-#elif defined(__GNUC__)
-  return __sync_val_compare_and_swap(ptr, old_value, new_value);
-#elif defined(_MSC_VER)
-  return InterlockedCompareExchange(ptr, new_value, old_value);
-#else
-#  error No compare-and-swap implementation for your platform!
-#endif
-}
-
-sys::cas_flag sys::AtomicIncrement(volatile sys::cas_flag* ptr) {
-#if LLVM_MULTITHREADED==0
-  ++(*ptr);
-  return *ptr;
-#elif defined(__GNUC__)
-  return __sync_add_and_fetch(ptr, 1);
-#elif defined(_MSC_VER)
-  return InterlockedIncrement(ptr);
-#else
-#  error No atomic increment implementation for your platform!
-#endif
-}
-
-sys::cas_flag sys::AtomicDecrement(volatile sys::cas_flag* ptr) {
-#if LLVM_MULTITHREADED==0
-  --(*ptr);
-  return *ptr;
-#elif defined(__GNUC__)
-  return __sync_sub_and_fetch(ptr, 1);
-#elif defined(_MSC_VER)
-  return InterlockedDecrement(ptr);
-#else
-#  error No atomic decrement implementation for your platform!
-#endif
-}
-
-sys::cas_flag sys::AtomicAdd(volatile sys::cas_flag* ptr, sys::cas_flag val) {
-#if LLVM_MULTITHREADED==0
-  *ptr += val;
-  return *ptr;
-#elif defined(__GNUC__)
-  return __sync_add_and_fetch(ptr, val);
-#elif defined(_MSC_VER)
-  return InterlockedExchangeAdd(ptr, val) + val;
-#else
-#  error No atomic add implementation for your platform!
-#endif
-}
-
-sys::cas_flag sys::AtomicMul(volatile sys::cas_flag* ptr, sys::cas_flag val) {
-  sys::cas_flag original, result;
-  do {
-    original = *ptr;
-    result = original * val;
-  } while (sys::CompareAndSwap(ptr, result, original) != original);
-
-  return result;
-}
-
-sys::cas_flag sys::AtomicDiv(volatile sys::cas_flag* ptr, sys::cas_flag val) {
-  sys::cas_flag original, result;
-  do {
-    original = *ptr;
-    result = original / val;
-  } while (sys::CompareAndSwap(ptr, result, original) != original);
-
-  return result;
-}
diff --git a/lib/System/CMakeLists.txt b/lib/System/CMakeLists.txt
deleted file mode 100644
index 16612ad88f..0000000000
--- a/lib/System/CMakeLists.txt
+++ /dev/null
@@ -1,52 +0,0 @@
-set(LLVM_REQUIRES_RTTI 1)
-if( MINGW )
-  set(LLVM_REQUIRES_EH 1)
-endif()
-
-add_llvm_library(LLVMSystem
-  Alarm.cpp
-  Atomic.cpp
-  Disassembler.cpp
-  DynamicLibrary.cpp
-  Errno.cpp
-  Host.cpp
-  IncludeFile.cpp
-  Memory.cpp
-  Mutex.cpp
-  Path.cpp
-  Process.cpp
-  Program.cpp
-  RWMutex.cpp
-  SearchForAddressOfSpecialSymbol.cpp
-  Signals.cpp
-  system_error.cpp
-  ThreadLocal.cpp
-  Threading.cpp
-  TimeValue.cpp
-  Valgrind.cpp
-  Unix/Alarm.inc
-  Unix/Host.inc
-  Unix/Memory.inc
-  Unix/Mutex.inc
-  Unix/Path.inc
-  Unix/Process.inc
-  Unix/Program.inc
-  Unix/RWMutex.inc
-  Unix/Signals.inc
-  Unix/system_error.inc
-  Unix/ThreadLocal.inc
-  Unix/TimeValue.inc
-  Win32/Alarm.inc
-  Win32/DynamicLibrary.inc
-  Win32/Host.inc
-  Win32/Memory.inc
-  Win32/Mutex.inc
-  Win32/Path.inc
-  Win32/Process.inc
-  Win32/Program.inc
-  Win32/RWMutex.inc
-  Win32/Signals.inc
-  Win32/system_error.inc
-  Win32/ThreadLocal.inc
-  Win32/TimeValue.inc
-  )
diff --git a/lib/System/Disassembler.cpp b/lib/System/Disassembler.cpp
deleted file mode 100644
index 139e3be1aa..0000000000
--- a/lib/System/Disassembler.cpp
+++ /dev/null
@@ -1,75 +0,0 @@
-//===- lib/System/Disassembler.cpp ------------------------------*- 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 necessary glue to call external disassembler
-// libraries.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/Config/config.h"
-#include "llvm/System/Disassembler.h"
-
-#include <cassert>
-#include <iomanip>
-#include <string>
-#include <sstream>
-
-#if USE_UDIS86
-#include <udis86.h>
-#endif
-
-using namespace llvm;
-
-bool llvm::sys::hasDisassembler()
-{
-#if defined (__i386__) || defined (__amd64__) || defined (__x86_64__)
-  // We have option to enable udis86 library.
-# if USE_UDIS86
-  return true;
-#else
-  return false;
-#endif
-#else
-  return false;
-#endif
-}
-
-std::string llvm::sys::disassembleBuffer(uint8_t* start, size_t length,
-                                         uint64_t pc) {
-  std::stringstream res;
-
-#if (defined (__i386__) || defined (__amd64__) || defined (__x86_64__)) \
-  && USE_UDIS86
-  unsigned bits;
-# if defined(__i386__)
-  bits = 32;
-# else
-  bits = 64;
-# endif
-
-  ud_t ud_obj;
-
-  ud_init(&ud_obj);
-  ud_set_input_buffer(&ud_obj, start, length);
-  ud_set_mode(&ud_obj, bits);
-  ud_set_pc(&ud_obj, pc);
-  ud_set_syntax(&ud_obj, UD_SYN_ATT);
-
-  res << std::setbase(16)
-      << std::setw(bits/4);
-
-  while (ud_disassemble(&ud_obj)) {
-    res << ud_insn_off(&ud_obj) << ":\t" << ud_insn_asm(&ud_obj) << "\n";
-  }
-#else
-  res << "No disassembler available. See configure help for options.\n";
-#endif
-
-  return res.str();
-}
diff --git a/lib/System/DynamicLibrary.cpp b/lib/System/DynamicLibrary.cpp
deleted file mode 100644
index 33f86334e3..0000000000
--- a/lib/System/DynamicLibrary.cpp
+++ /dev/null
@@ -1,177 +0,0 @@
-//===-- DynamicLibrary.cpp - Runtime link/load libraries --------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-//  This header file implements the operating system DynamicLibrary concept.
-//
-// FIXME: This file leaks the ExplicitSymbols and OpenedHandles vector, and is
-// not thread safe!
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/System/DynamicLibrary.h"
-#include "llvm/System/Mutex.h"
-#include "llvm/Config/config.h"
-#include <cstdio>
-#include <cstring>
-#include <map>
-#include <vector>
-
-// Collection of symbol name/value pairs to be searched prior to any libraries.
-static std::map<std::string, void*> *ExplicitSymbols = 0;
-
-namespace {
-
-struct ExplicitSymbolsDeleter {
-  ~ExplicitSymbolsDeleter() {
-    if (ExplicitSymbols)
-      delete ExplicitSymbols;
-  }
-};
-
-}
-
-static ExplicitSymbolsDeleter Dummy;
-
-void llvm::sys::DynamicLibrary::AddSymbol(const char* symbolName,
-                                          void *symbolValue) {
-  if (ExplicitSymbols == 0)
-    ExplicitSymbols = new std::map<std::string, void*>();
-  (*ExplicitSymbols)[symbolName] = symbolValue;
-}
-
-#ifdef LLVM_ON_WIN32
-
-#include "Win32/DynamicLibrary.inc"
-
-#else
-
-#if HAVE_DLFCN_H
-#include <dlfcn.h>
-using namespace llvm;
-using namespace llvm::sys;
-
-//===----------------------------------------------------------------------===//
-//=== WARNING: Implementation here must contain only TRULY operating system
-//===          independent code.
-//===----------------------------------------------------------------------===//
-
-static SmartMutex<true>* HandlesMutex;
-static std::vector<void *> *OpenedHandles = 0;
-
-static bool InitializeMutex() {
-  HandlesMutex = new SmartMutex<true>;
-  return HandlesMutex != 0;
-}
-
-static bool EnsureMutexInitialized() {
-  static bool result = InitializeMutex();
-  return result;
-}
-
-
-bool DynamicLibrary::LoadLibraryPermanently(const char *Filename,
-                                            std::string *ErrMsg) {
-  void *H = dlopen(Filename, RTLD_LAZY|RTLD_GLOBAL);
-  if (H == 0) {
-    if (ErrMsg) *ErrMsg = dlerror();
-    return true;
-  }
-#ifdef __CYGWIN__
-  // Cygwin searches symbols only in the main
-  // with the handle of dlopen(NULL, RTLD_GLOBAL).
-  if (Filename == NULL)
-    H = RTLD_DEFAULT;
-#endif
-  EnsureMutexInitialized();
-  SmartScopedLock<true> Lock(*HandlesMutex);
-  if (OpenedHandles == 0)
-    OpenedHandles = new std::vector<void *>();
-  OpenedHandles->push_back(H);
-  return false;
-}
-#else
-
-using namespace llvm;
-using namespace llvm::sys;
-
-bool DynamicLibrary::LoadLibraryPermanently(const char *Filename,
-                                            std::string *ErrMsg) {
-  if (ErrMsg) *ErrMsg = "dlopen() not supported on this platform";
-  return true;
-}
-#endif
-
-namespace llvm {
-void *SearchForAddressOfSpecialSymbol(const char* symbolName);
-}
-
-void* DynamicLibrary::SearchForAddressOfSymbol(const char* symbolName) {
-  // First check symbols added via AddSymbol().
-  if (ExplicitSymbols) {
-    std::map<std::string, void *>::iterator I =
-      ExplicitSymbols->find(symbolName);
-    std::map<std::string, void *>::iterator E = ExplicitSymbols->end();
-  
-    if (I != E)
-      return I->second;
-  }
-
-#if HAVE_DLFCN_H
-  // Now search the libraries.
-  EnsureMutexInitialized();
-  SmartScopedLock<true> Lock(*HandlesMutex);
-  if (OpenedHandles) {
-    for (std::vector<void *>::iterator I = OpenedHandles->begin(),
-         E = OpenedHandles->end(); I != E; ++I) {
-      //lt_ptr ptr = lt_dlsym(*I, symbolName);
-      void *ptr = dlsym(*I, symbolName);
-      if (ptr) {
-        return ptr;
-      }
-    }
-  }
-#endif
-
-  if (void *Result = llvm::SearchForAddressOfSpecialSymbol(symbolName))
-    return Result;
-
-// This macro returns the address of a well-known, explicit symbol
-#define EXPLICIT_SYMBOL(SYM) \
-   if (!strcmp(symbolName, #SYM)) return &SYM
-
-// On linux we have a weird situation. The stderr/out/in symbols are both
-// macros and global variables because of standards requirements. So, we 
-// boldly use the EXPLICIT_SYMBOL macro without checking for a #define first.
-#if defined(__linux__)
-  {
-    EXPLICIT_SYMBOL(stderr);
-    EXPLICIT_SYMBOL(stdout);
-    EXPLICIT_SYMBOL(stdin);
-  }
-#else
-  // For everything else, we want to check to make sure the symbol isn't defined
-  // as a macro before using EXPLICIT_SYMBOL.
-  {
-#ifndef stdin
-    EXPLICIT_SYMBOL(stdin);
-#endif
-#ifndef stdout
-    EXPLICIT_SYMBOL(stdout);
-#endif
-#ifndef stderr
-    EXPLICIT_SYMBOL(stderr);
-#endif
-  }
-#endif
-#undef EXPLICIT_SYMBOL
-
-  return 0;
-}
-
-#endif // LLVM_ON_WIN32
diff --git a/lib/System/Errno.cpp b/lib/System/Errno.cpp
deleted file mode 100644
index 68f66f6e43..0000000000
--- a/lib/System/Errno.cpp
+++ /dev/null
@@ -1,74 +0,0 @@
-//===- Errno.cpp - errno support --------------------------------*- 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 errno wrappers.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/System/Errno.h"
-#include "llvm/Config/config.h"     // Get autoconf configuration settings
-
-#if HAVE_STRING_H
-#include <string.h>
-
-#if HAVE_ERRNO_H
-#include <errno.h>
-#endif
-
-//===----------------------------------------------------------------------===//
-//=== WARNING: Implementation here must contain only TRULY operating system
-//===          independent code.
-//===----------------------------------------------------------------------===//
-
-namespace llvm {
-namespace sys {
-
-#if HAVE_ERRNO_H
-std::string StrError() {
-  return StrError(errno);
-}
-#endif  // HAVE_ERRNO_H
-
-std::string StrError(int errnum) {
-  const int MaxErrStrLen = 2000;
-  char buffer[MaxErrStrLen];
-  buffer[0] = '\0';
-  char* str = buffer;
-#ifdef HAVE_STRERROR_R
-  // strerror_r is thread-safe.
-  if (errnum)
-# if defined(__GLIBC__) && defined(_GNU_SOURCE)
-    // glibc defines its own incompatible version of strerror_r
-    // which may not use the buffer supplied.
-    str = strerror_r(errnum,buffer,MaxErrStrLen-1);
-# else
-    strerror_r(errnum,buffer,MaxErrStrLen-1);
-# endif
-#elif defined(HAVE_STRERROR_S)  // Windows.
-    if (errnum)
-      strerror_s(buffer, errnum);
-#elif defined(HAVE_STRERROR)
-  // Copy the thread un-safe result of strerror into
-  // the buffer as fast as possible to minimize impact
-  // of collision of strerror in multiple threads.
-  if (errnum)
-    strncpy(buffer,strerror(errnum),MaxErrStrLen-1);
-  buffer[MaxErrStrLen-1] = '\0';
-#else
-  // Strange that this system doesn't even have strerror
-  // but, oh well, just use a generic message
-  sprintf(buffer, "Error #%d", errnum);
-#endif
-  return str;
-}
-
-}  // namespace sys
-}  // namespace llvm
-
-#endif  // HAVE_STRING_H
diff --git a/lib/System/Host.cpp b/lib/System/Host.cpp
deleted file mode 100644
index 17384a18f9..0000000000
--- a/lib/System/Host.cpp
+++ /dev/null
@@ -1,307 +0,0 @@
-//===-- Host.cpp - Implement OS Host Concept --------------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-//  This header file implements the operating system Host concept.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/System/Host.h"
-#include "llvm/Config/config.h"
-#include <string.h>
-
-// Include the platform-specific parts of this class.
-#ifdef LLVM_ON_UNIX
-#include "Unix/Host.inc"
-#endif
-#ifdef LLVM_ON_WIN32
-#include "Win32/Host.inc"
-#endif
-#ifdef _MSC_VER
-#include <intrin.h>
-#endif
-
-//===----------------------------------------------------------------------===//
-//
-//  Implementations of the CPU detection routines
-//
-//===----------------------------------------------------------------------===//
-
-using namespace llvm;
-
-#if defined(i386) || defined(__i386__) || defined(__x86__) || defined(_M_IX86)\
- || defined(__x86_64__) || defined(_M_AMD64) || defined (_M_X64)
-
-/// GetX86CpuIDAndInfo - Execute the specified cpuid and return the 4 values in the
-/// specified arguments.  If we can't run cpuid on the host, return true.
-static bool GetX86CpuIDAndInfo(unsigned value, unsigned *rEAX,
-                            unsigned *rEBX, unsigned *rECX, unsigned *rEDX) {
-#if defined(__x86_64__) || defined(_M_AMD64) || defined (_M_X64)
-  #if defined(__GNUC__)
-    // gcc doesn't know cpuid would clobber ebx/rbx. Preseve it manually.
-    asm ("movq\t%%rbx, %%rsi\n\t"
-         "cpuid\n\t"
-         "xchgq\t%%rbx, %%rsi\n\t"
-         : "=a" (*rEAX),
-           "=S" (*rEBX),
-           "=c" (*rECX),
-           "=d" (*rEDX)
-         :  "a" (value));
-    return false;
-  #elif defined(_MSC_VER)
-    int registers[4];
-    __cpuid(registers, value);
-    *rEAX = registers[0];
-    *rEBX = registers[1];
-    *rECX = registers[2];
-    *rEDX = registers[3];
-    return false;
-  #endif
-#elif defined(i386) || defined(__i386__) || defined(__x86__) || defined(_M_IX86)
-  #if defined(__GNUC__)
-    asm ("movl\t%%ebx, %%esi\n\t"
-         "cpuid\n\t"
-         "xchgl\t%%ebx, %%esi\n\t"
-         : "=a" (*rEAX),
-           "=S" (*rEBX),
-           "=c" (*rECX),
-           "=d" (*rEDX)
-         :  "a" (value));
-    return false;
-  #elif defined(_MSC_VER)
-    __asm {
-      mov   eax,value
-      cpuid
-      mov   esi,rEAX
-      mov   dword ptr [esi],eax
-      mov   esi,rEBX
-      mov   dword ptr [esi],ebx
-      mov   esi,rECX
-      mov   dword ptr [esi],ecx
-      mov   esi,rEDX
-      mov   dword ptr [esi],edx
-    }
-    return false;
-  #endif
-#endif
-  return true;
-}
-
-static void DetectX86FamilyModel(unsigned EAX, unsigned &Family,
-                                 unsigned &Model) {
-  Family = (EAX >> 8) & 0xf; // Bits 8 - 11
-  Model  = (EAX >> 4) & 0xf; // Bits 4 - 7
-  if (Family == 6 || Family == 0xf) {
-    if (Family == 0xf)
-      // Examine extended family ID if family ID is F.
-      Family += (EAX >> 20) & 0xff;    // Bits 20 - 27
-    // Examine extended model ID if family ID is 6 or F.
-    Model += ((EAX >> 16) & 0xf) << 4; // Bits 16 - 19
-  }
-}
-
-std::string sys::getHostCPUName() {
-  unsigned EAX = 0, EBX = 0, ECX = 0, EDX = 0;
-  if (GetX86CpuIDAndInfo(0x1, &EAX, &EBX, &ECX, &EDX))
-    return "generic";
-  unsigned Family = 0;
-  unsigned Model  = 0;
-  DetectX86FamilyModel(EAX, Family, Model);
-
-  bool HasSSE3 = (ECX & 0x1);
-  GetX86CpuIDAndInfo(0x80000001, &EAX, &EBX, &ECX, &EDX);
-  bool Em64T = (EDX >> 29) & 0x1;
-
-  union {
-    unsigned u[3];
-    char     c[12];
-  } text;
-
-  GetX86CpuIDAndInfo(0, &EAX, text.u+0, text.u+2, text.u+1);
-  if (memcmp(text.c, "GenuineIntel", 12) == 0) {
-    switch (Family) {
-    case 3:
-      return "i386";
-    case 4:
-      switch (Model) {
-      case 0: // Intel486 DX processors
-      case 1: // Intel486 DX processors
-      case 2: // Intel486 SX processors
-      case 3: // Intel487 processors, IntelDX2 OverDrive processors,
-              // IntelDX2 processors
-      case 4: // Intel486 SL processor
-      case 5: // IntelSX2 processors
-      case 7: // Write-Back Enhanced IntelDX2 processors
-      case 8: // IntelDX4 OverDrive processors, IntelDX4 processors
-      default: return "i486";
-      }
-    case 5:
-      switch (Model) {
-      case  1: // Pentium OverDrive processor for Pentium processor (60, 66),
-               // Pentium processors (60, 66)
-      case  2: // Pentium OverDrive processor for Pentium processor (75, 90,
-               // 100, 120, 133), Pentium processors (75, 90, 100, 120, 133,
-               // 150, 166, 200)
-      case  3: // Pentium OverDrive processors for Intel486 processor-based
-               // systems
-        return "pentium";
-
-      case  4: // Pentium OverDrive processor with MMX technology for Pentium
-               // processor (75, 90, 100, 120, 133), Pentium processor with
-               // MMX technology (166, 200)
-        return "pentium-mmx";
-
-      default: return "pentium";
-      }
-    case 6:
-      switch (Model) {
-      case  1: // Pentium Pro processor
-        return "pentiumpro";
-
-      case  3: // Intel Pentium II OverDriv