diff options
author | Reid Spencer <rspencer@reidspencer.com> | 2004-12-27 06:15:57 +0000 |
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committer | Reid Spencer <rspencer@reidspencer.com> | 2004-12-27 06:15:57 +0000 |
commit | ce7999598a46d2df2ec60ff49e23d3478fb73815 (patch) | |
tree | 5699dc5359c7f4467b13692812e4b405f560377e /lib/System/FreeBSD/Memory.cpp | |
parent | b9ed2c17dac6c8f2c0058c104b5de604a222f614 (diff) |
For PR351:
* Consolidate implementation for Unix systems into Unix/Memory.cpp
* Avoid use of symbolic link to #include platform-specific implementation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19152 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/System/FreeBSD/Memory.cpp')
-rw-r--r-- | lib/System/FreeBSD/Memory.cpp | 55 |
1 files changed, 0 insertions, 55 deletions
diff --git a/lib/System/FreeBSD/Memory.cpp b/lib/System/FreeBSD/Memory.cpp deleted file mode 100644 index 4f8dea5dad..0000000000 --- a/lib/System/FreeBSD/Memory.cpp +++ /dev/null @@ -1,55 +0,0 @@ -//===- FreeBSD/Memory.cpp - FreeBSD Memory Implementation -------*- C++ -*-===// -// -// The LLVM Compiler Infrastructure -// -// This file was developed by Reid Spencer and is distributed under the -// University of Illinois Open Source License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// -// -// This file provides the FreeBSD specific implementation of various Memory -// management utilities -// -//===----------------------------------------------------------------------===// - -// Include the generic unix implementation -#include "../Unix/Memory.cpp" -#include "llvm/System/Process.h" -#include <sys/mman.h> - -namespace llvm { -using namespace sys; - -//===----------------------------------------------------------------------===// -//=== WARNING: Implementation here must contain only FreeBSD specific code -//=== and must not be generic UNIX code (see ../Unix/Memory.cpp) -//===----------------------------------------------------------------------===// - -MemoryBlock Memory::AllocateRWX(unsigned NumBytes) { - if (NumBytes == 0) return MemoryBlock(); - - static const long pageSize = Process::GetPageSize(); - unsigned NumPages = (NumBytes+pageSize-1)/pageSize; - - void *pa = mmap(0, pageSize*NumPages, PROT_READ|PROT_WRITE|PROT_EXEC, - MAP_PRIVATE|MAP_ANON|MAP_NOCORE, -1, 0); - if (pa == (void*)-1) { - throw std::string("Can't allocate RWX Memory: ") + strerror(errno); - } - - MemoryBlock result; - result.Address = pa; - result.Size = NumPages*pageSize; - return result; -} - -void Memory::ReleaseRWX(MemoryBlock& M) { - if (M.Address == 0 || M.Size == 0) return; - if (0 != munmap(M.Address, M.Size)) { - throw std::string("Can't release RWX Memory: ") + strerror(errno); - } -} - -} - -// vim: sw=2 smartindent smarttab tw=80 autoindent expandtab |