Remove LLVM 8.0.1 files.

1 files changed, 0 insertions, 249 deletions

diff --git a/gnu/llvm/lib/Support/Unix/Memory.inc b/gnu/llvm/lib/Support/Unix/Memory.inc
deleted file mode 100644
index adbfff2f59a..00000000000
--- a/gnu/llvm/lib/Support/Unix/Memory.inc
+++ /dev/null
@@ -1,249 +0,0 @@
-//===- Unix/Memory.cpp - Generic UNIX System Configuration ------*- 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 some functions for various memory management utilities.
-//
-//===----------------------------------------------------------------------===//
-
-#include "Unix.h"
-#include "llvm/Config/config.h"
-#include "llvm/Support/DataTypes.h"
-#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/Process.h"
-
-#ifdef HAVE_SYS_MMAN_H
-#include <sys/mman.h>
-#endif
-
-#ifdef __APPLE__
-#include <mach/mach.h>
-#endif
-
-#ifdef __Fuchsia__
-#include <zircon/syscalls.h>
-#endif
-
-#if defined(__mips__)
-#  if defined(__OpenBSD__)
-#    include <mips64/sysarch.h>
-#  elif !defined(__FreeBSD__)
-#    include <sys/cachectl.h>
-#  endif
-#endif
-
-#if defined(__APPLE__)
-extern "C" void sys_icache_invalidate(const void *Addr, size_t len);
-#else
-extern "C" void __clear_cache(void *, void*);
-#endif
-
-namespace {
-
-int getPosixProtectionFlags(unsigned Flags) {
-  switch (Flags) {
-  case llvm::sys::Memory::MF_READ:
-    return PROT_READ;
-  case llvm::sys::Memory::MF_WRITE:
-    return PROT_WRITE;
-  case llvm::sys::Memory::MF_READ|llvm::sys::Memory::MF_WRITE:
-    return PROT_READ | PROT_WRITE;
-  case llvm::sys::Memory::MF_READ|llvm::sys::Memory::MF_EXEC:
-    return PROT_READ | PROT_EXEC;
-  case llvm::sys::Memory::MF_READ | llvm::sys::Memory::MF_WRITE |
-      llvm::sys::Memory::MF_EXEC:
-    return PROT_READ | PROT_WRITE | PROT_EXEC;
-  case llvm::sys::Memory::MF_EXEC:
-#if defined(__FreeBSD__)
-    // On PowerPC, having an executable page that has no read permission
-    // can have unintended consequences.  The function InvalidateInstruction-
-    // Cache uses instructions dcbf and icbi, both of which are treated by
-    // the processor as loads.  If the page has no read permissions,
-    // executing these instructions will result in a segmentation fault.
-    // Somehow, this problem is not present on Linux, but it does happen
-    // on FreeBSD.
-    return PROT_READ | PROT_EXEC;
-#else
-    return PROT_EXEC;
-#endif
-  default:
-    llvm_unreachable("Illegal memory protection flag specified!");
-  }
-  // Provide a default return value as required by some compilers.
-  return PROT_NONE;
-}
-
-} // anonymous namespace
-
-namespace llvm {
-namespace sys {
-
-MemoryBlock
-Memory::allocateMappedMemory(size_t NumBytes,
-                             const MemoryBlock *const NearBlock,
-                             unsigned PFlags,
-                             std::error_code &EC) {
-  EC = std::error_code();
-  if (NumBytes == 0)
-    return MemoryBlock();
-
-  static const size_t PageSize = Process::getPageSize();
-  const size_t NumPages = (NumBytes+PageSize-1)/PageSize;
-
-  int fd = -1;
-
-  int MMFlags = MAP_PRIVATE |
-#ifdef MAP_ANONYMOUS
-  MAP_ANONYMOUS
-#else
-  MAP_ANON
-#endif
-  ; // Ends statement above
-
-  int Protect = getPosixProtectionFlags(PFlags);
-
-#if defined(__NetBSD__) && defined(PROT_MPROTECT)
-  Protect |= PROT_MPROTECT(PROT_READ | PROT_WRITE | PROT_EXEC);
-#endif
-
-  // Use any near hint and the page size to set a page-aligned starting address
-  uintptr_t Start = NearBlock ? reinterpret_cast<uintptr_t>(NearBlock->base()) +
-                                      NearBlock->size() : 0;
-  if (Start && Start % PageSize)
-    Start += PageSize - Start % PageSize;
-
-  void *Addr = ::mmap(reinterpret_cast<void*>(Start), PageSize*NumPages,
-                      Protect, MMFlags, fd, 0);
-  if (Addr == MAP_FAILED) {
-    if (NearBlock) //Try again without a near hint
-      return allocateMappedMemory(NumBytes, nullptr, PFlags, EC);
-
-    EC = std::error_code(errno, std::generic_category());
-    return MemoryBlock();
-  }
-
-  MemoryBlock Result;
-  Result.Address = Addr;
-  Result.Size = NumPages*PageSize;
-
-  // Rely on protectMappedMemory to invalidate instruction cache.
-  if (PFlags & MF_EXEC) {
-    EC = Memory::protectMappedMemory (Result, PFlags);
-    if (EC != std::error_code())
-      return MemoryBlock();
-  }
-
-  return Result;
-}
-
-std::error_code
-Memory::releaseMappedMemory(MemoryBlock &M) {
-  if (M.Address == nullptr || M.Size == 0)
-    return std::error_code();
-
-  if (0 != ::munmap(M.Address, M.Size))
-    return std::error_code(errno, std::generic_category());
-
-  M.Address = nullptr;
-  M.Size = 0;
-
-  return std::error_code();
-}
-
-std::error_code
-Memory::protectMappedMemory(const MemoryBlock &M, unsigned Flags) {
-  static const size_t PageSize = Process::getPageSize();
-  if (M.Address == nullptr || M.Size == 0)
-    return std::error_code();
-
-  if (!Flags)
-    return std::error_code(EINVAL, std::generic_category());
-
-  int Protect = getPosixProtectionFlags(Flags);
-  uintptr_t Start = alignAddr((uint8_t *)M.Address - PageSize + 1, PageSize);
-  uintptr_t End = alignAddr((uint8_t *)M.Address + M.Size, PageSize);
-
-  bool InvalidateCache = (Flags & MF_EXEC);
-
-#if defined(__arm__) || defined(__aarch64__)
-  // Certain ARM implementations treat icache clear instruction as a memory read,
-  // and CPU segfaults on trying to clear cache on !PROT_READ page.  Therefore we need
-  // to temporarily add PROT_READ for the sake of flushing the instruction caches.
-  if (InvalidateCache && !(Protect & PROT_READ)) {
-    int Result = ::mprotect((void *)Start, End - Start, Protect | PROT_READ);
-    if (Result != 0)
-      return std::error_code(errno, std::generic_category());
-
-    Memory::InvalidateInstructionCache(M.Address, M.Size);
-    InvalidateCache = false;
-  }
-#endif
-
-  int Result = ::mprotect((void *)Start, End - Start, Protect);
-
-  if (Result != 0)
-    return std::error_code(errno, std::generic_category());
-
-  if (InvalidateCache)
-    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) {
-
-// icache invalidation for PPC and ARM.
-#if defined(__APPLE__)
-
-#  if (defined(__POWERPC__) || defined (__ppc__) || \
-       defined(_POWER) || defined(_ARCH_PPC) || defined(__arm__) || \
-       defined(__arm64__))
-  sys_icache_invalidate(const_cast<void *>(Addr), Len);
-#  endif
-
-#elif defined(__Fuchsia__)
-
-  zx_status_t Status = zx_cache_flush(Addr, Len, ZX_CACHE_FLUSH_INSN);
-  assert(Status == ZX_OK && "cannot invalidate instruction cache");
-
-#else
-
-#  if (defined(__POWERPC__) || defined (__ppc__) || \
-       defined(_POWER) || defined(_ARCH_PPC)) && defined(__GNUC__)
-  const size_t LineSize = 32;
-
-  const intptr_t Mask = ~(LineSize - 1);
-  const intptr_t StartLine = ((intptr_t) Addr) & Mask;
-  const intptr_t EndLine = ((intptr_t) Addr + Len + LineSize - 1) & Mask;
-
-  for (intptr_t Line = StartLine; Line < EndLine; Line += LineSize)
-    asm volatile("dcbf 0, %0" : : "r"(Line));
-  asm volatile("sync");
-
-  for (intptr_t Line = StartLine; Line < EndLine; Line += LineSize)
-    asm volatile("icbi 0, %0" : : "r"(Line));
-  asm volatile("isync");
-#  elif (defined(__arm__) || defined(__aarch64__) || defined(__mips__)) && \
-        defined(__GNUC__)
-  // FIXME: Can we safely always call this for __GNUC__ everywhere?
-  const char *Start = static_cast<const char *>(Addr);
-  const char *End = Start + Len;
-  __clear_cache(const_cast<char *>(Start), const_cast<char *>(End));
-#  endif
-
-#endif  // end apple
-
-  ValgrindDiscardTranslations(Addr, Len);
-}
-
-} // namespace sys
-} // namespace llvm