llvm-6502/lib/Support
Argyrios Kyrtzidis 046c8e1a3a [Support/LockFileManager] Re-apply r203137 and r203138 but use symbolic links only on unix.
Reid Kleckner pointed out that we can't use symbolic links on Windows.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203162 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-06 20:53:58 +00:00
..
Unix Revert create_symbolic_link and both depending changes 2014-03-06 19:07:35 +00:00
Windows Revert create_symbolic_link and both depending changes 2014-03-06 19:07:35 +00:00
Allocator.cpp
APFloat.cpp APFloat: Add a move ctor and operator= 2014-03-04 20:26:51 +00:00
APInt.cpp
APSInt.cpp
ARMBuildAttrs.cpp
Atomic.cpp
BlockFrequency.cpp
BranchProbability.cpp
circular_raw_ostream.cpp
CMakeLists.txt [Modules] Move the ConstantRange class into the IR library. This is 2014-03-04 12:24:34 +00:00
CommandLine.cpp Replace OwningPtr<T> with std::unique_ptr<T>. 2014-03-06 05:51:42 +00:00
Compression.cpp Replace OwningPtr<T> with std::unique_ptr<T>. 2014-03-06 05:51:42 +00:00
ConvertUTF.c
ConvertUTFWrapper.cpp
COPYRIGHT.regex
CrashRecoveryContext.cpp Remove dependence on std::function. 2014-03-04 22:13:07 +00:00
DAGDeltaAlgorithm.cpp Switch all uses of LLVM_OVERRIDE to just use 'override' directly. 2014-03-02 09:09:27 +00:00
DataExtractor.cpp
DataStream.cpp Switch all uses of LLVM_OVERRIDE to just use 'override' directly. 2014-03-02 09:09:27 +00:00
Debug.cpp
DeltaAlgorithm.cpp
Disassembler.cpp
Dwarf.cpp
DynamicLibrary.cpp
Errno.cpp
ErrorHandling.cpp
FileOutputBuffer.cpp [C++11] Add overloads for externally used OwningPtr functions. 2014-03-05 10:27:34 +00:00
FileUtilities.cpp Replace OwningPtr<T> with std::unique_ptr<T>. 2014-03-06 05:51:42 +00:00
FoldingSet.cpp
FormattedStream.cpp
GraphWriter.cpp
Hashing.cpp
Host.cpp
IncludeFile.cpp
IntEqClasses.cpp
IntervalMap.cpp
IntrusiveRefCntPtr.cpp
IsInf.cpp
IsNAN.cpp
LEB128.cpp Don't inline get[S|U]LEB128Size() until they are proved to be hot. 2014-02-22 15:39:39 +00:00
LineIterator.cpp
LLVMBuild.txt
Locale.cpp
LockFileManager.cpp [Support/LockFileManager] Re-apply r203137 and r203138 but use symbolic links only on unix. 2014-03-06 20:53:58 +00:00
Makefile
ManagedStatic.cpp Revert "[C++11] Replace LLVM atomics with std::atomic." 2014-03-03 18:02:34 +00:00
MD5.cpp
Memory.cpp
MemoryBuffer.cpp [C++11] Add overloads for externally used OwningPtr functions. 2014-03-05 10:27:34 +00:00
MemoryObject.cpp
Mutex.cpp Remove unnecessary call to pthread_mutexattr_setpshared() 2014-01-29 00:20:44 +00:00
Path.cpp Fix an inconsistency in treatment of trailing / in path::const_iterator 2014-03-05 19:56:30 +00:00
PluginLoader.cpp
PrettyStackTrace.cpp
Process.cpp Hopefully fixing the MinGW 32 build, which was broken by r200767. Not using rand_s() since MinGW does not have an implementation for it, but instead using the underlying CryptGenRandom APIs. 2014-02-11 02:47:33 +00:00
Program.cpp
raw_os_ostream.cpp
raw_ostream.cpp Revert "Use StringRef in raw_fd_ostream constructor" 2014-02-27 02:09:10 +00:00
README.txt.system
regcclass.h
regcname.h
regcomp.c
regengine.inc
regerror.c
regex2.h
regex_impl.h
Regex.cpp
regexec.c
regfree.c
regstrlcpy.c
regutils.h
RWMutex.cpp
SearchForAddressOfSpecialSymbol.cpp
Signals.cpp
SmallPtrSet.cpp [C++11] Remove the R-value reference #if usage from the ADT and Support 2014-03-01 09:27:28 +00:00
SmallVector.cpp
SourceMgr.cpp Replace OwningPtr<T> with std::unique_ptr<T>. 2014-03-06 05:51:42 +00:00
Statistic.cpp Revert "[C++11] Replace LLVM atomics with std::atomic." 2014-03-03 18:02:34 +00:00
StreamableMemoryObject.cpp Add <cstddef> for use of std::ptrdiff_t. 2014-03-06 06:13:54 +00:00
StringExtras.cpp
StringMap.cpp
StringPool.cpp
StringRef.cpp Replace OwningPtr<T> with std::unique_ptr<T>. 2014-03-06 05:51:42 +00:00
StringRefMemoryObject.cpp
system_error.cpp Switch all uses of LLVM_OVERRIDE to just use 'override' directly. 2014-03-02 09:09:27 +00:00
SystemUtils.cpp
TargetRegistry.cpp
Threading.cpp Revert "[C++11] Replace LLVM atomics with std::atomic." 2014-03-03 18:02:34 +00:00
ThreadLocal.cpp [C++11] Replace LLVM_STATIC_ASSERT with static_assert, we now have 2014-03-02 13:10:45 +00:00
Timer.cpp Replace OwningPtr<T> with std::unique_ptr<T>. 2014-03-06 05:51:42 +00:00
TimeValue.cpp
ToolOutputFile.cpp
Triple.cpp Support: split object format out of environment 2014-03-06 20:47:11 +00:00
Twine.cpp Remove unnecessary llvm:: qualification. 2014-02-26 23:27:16 +00:00
Unicode.cpp
Valgrind.cpp
Watchdog.cpp
YAMLParser.cpp Replace OwningPtr<T> with std::unique_ptr<T>. 2014-03-06 05:51:42 +00:00
YAMLTraits.cpp

Design Of lib/System
====================

The software in this directory is designed to completely shield LLVM from any
and all operating system specific functionality. It is not intended to be a
complete operating system wrapper (such as ACE), but only to provide the
functionality necessary to support LLVM.

The software located here, of necessity, has very specific and stringent design
rules. Violation of these rules means that cracks in the shield could form and
the primary goal of the library is defeated. By consistently using this library,
LLVM becomes more easily ported to new platforms since the only thing requiring
porting is this library.

Complete documentation for the library can be found in the file:
  llvm/docs/SystemLibrary.html
or at this URL:
  http://llvm.org/docs/SystemLibrary.html

While we recommend that you read the more detailed documentation, for the
impatient, here's a high level summary of the library's requirements.

 1. No system header files are to be exposed through the interface.
 2. Std C++ and Std C header files are okay to be exposed through the interface.
 3. No exposed system-specific functions.
 4. No exposed system-specific data.
 5. Data in lib/System classes must use only simple C++ intrinsic types.
 6. Errors are handled by returning "true" and setting an optional std::string
 7. Library must not throw any exceptions, period.
 8. Interface functions must not have throw() specifications.
 9. No duplicate function impementations are permitted within an operating
    system class.

To accomplish these requirements, the library has numerous design criteria that
must be satisfied. Here's a high level summary of the library's design criteria:

 1. No unused functionality (only what LLVM needs)
 2. High-Level Interfaces
 3. Use Opaque Classes
 4. Common Implementations
 5. Multiple Implementations
 6. Minimize Memory Allocation
 7. No Virtual Methods