llvm-6502/lib/Support
Evan Cheng aff59685a9 Add a missing cpu subtype.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155402 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-23 22:41:39 +00:00
..
Unix [Support/Unix] Unconditionally include time.h. 2012-04-23 19:00:27 +00:00
Windows Reapply 'Add reverseColor to raw_ostream'. 2012-04-16 08:56:50 +00:00
Allocator.cpp BumpPtrAllocator: Make sure threshold cannot be initialized with a value smaller than the slab size. 2012-03-01 22:10:16 +00:00
APFloat.cpp Replace the hashing functions on APInt and APFloat with overloads of the 2012-03-04 12:02:57 +00:00
APInt.cpp Move APInt::operator[] inline. 2012-03-14 00:38:15 +00:00
APSInt.cpp
Atomic.cpp
BlockFrequency.cpp
BranchProbability.cpp
circular_raw_ostream.cpp
CMakeLists.txt platform support for counting column widths and checking isprint 2012-04-17 20:03:03 +00:00
CommandLine.cpp Don't cast away constant qualifier. 2012-03-12 10:51:06 +00:00
ConstantRange.cpp
COPYRIGHT.regex
CrashRecoveryContext.cpp move Signals to .rodata 2012-04-21 14:45:37 +00:00
DAGDeltaAlgorithm.cpp
DataExtractor.cpp
DataStream.cpp
Debug.cpp
DeltaAlgorithm.cpp
Disassembler.cpp
Dwarf.cpp Lowercase the tag name to match the rest of dwarf. 2012-03-29 21:35:05 +00:00
DynamicLibrary.cpp
Errno.cpp
ErrorHandling.cpp
FileUtilities.cpp
FoldingSet.cpp FoldingSet: Push the hash through FoldingSetTraits::Equals, so clients can use it. 2012-04-11 14:06:47 +00:00
FormattedStream.cpp
GraphWriter.cpp Silence unused function warning when graphviz is not available. 2012-03-08 22:15:23 +00:00
Hashing.cpp Add the source file with trivial definitions in it that was missing from 2012-03-01 18:58:59 +00:00
Host.cpp Add a missing cpu subtype. 2012-04-23 22:41:39 +00:00
IncludeFile.cpp
IntEqClasses.cpp
IntervalMap.cpp
IntrusiveRefCntPtr.cpp
IsInf.cpp
IsNAN.cpp
LLVMBuild.txt
Locale.cpp platform support for counting column widths and checking isprint 2012-04-17 20:03:03 +00:00
LocaleGeneric.inc C++ has newlines at the end of files (including include files). 2012-04-17 23:46:51 +00:00
LocaleWindows.inc platform support for counting column widths and checking isprint 2012-04-17 20:03:03 +00:00
LocaleXlocale.inc fix error check in assert 2012-04-18 00:40:23 +00:00
LockFileManager.cpp
Makefile
ManagedStatic.cpp
Memory.cpp
MemoryBuffer.cpp In MemoryBuffer::getOpenFile() make sure that the buffer is null-terminated if 2012-04-05 04:23:56 +00:00
MemoryObject.cpp
Mutex.cpp
Path.cpp
PathV2.cpp [PathV2]: Fix bug in create_directories which caused infinite recursion on 2012-03-21 23:09:14 +00:00
PluginLoader.cpp
PrettyStackTrace.cpp
Process.cpp Merge System into Support. 2010-11-29 18:16:10 +00:00
Program.cpp
raw_os_ostream.cpp
raw_ostream.cpp Reapply 'Add reverseColor to raw_ostream'. 2012-04-16 08:56:50 +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 SmallPtrSet: Reuse DenseMapInfo's pointer hash function instead of inventing a bad one ourselves. 2012-04-18 10:37:32 +00:00
SmallVector.cpp
SourceMgr.cpp SourceMgr: Colorize diagnostics. 2012-04-18 19:04:15 +00:00
Statistic.cpp
StreamableMemoryObject.cpp
StringExtras.cpp
StringMap.cpp
StringPool.cpp
StringRef.cpp Don't die with an assertion if the Result bitwidth is already correct. This 2012-04-23 00:27:54 +00:00
system_error.cpp
SystemUtils.cpp
TargetRegistry.cpp
Threading.cpp
ThreadLocal.cpp
Timer.cpp
TimeValue.cpp
ToolOutputFile.cpp
Triple.cpp Add triple support for the IBM BG/P and BG/Q supercomputers. 2012-04-02 18:31:33 +00:00
Twine.cpp
Valgrind.cpp
YAMLParser.cpp Remove some potential warnings about variables used uninitialized. 2012-04-22 07:23:04 +00:00

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