llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-11-05 13:09:10 +00:00

History

Eric Christopher 577056f89c Move accelerator table defines and constants to Dwarf.h since we're proposing it for DWARF5. No functional change intended. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190074 91177308-0d34-0410-b5e6-96231b3b80d8		2013-09-05 18:20:16 +00:00
..
Unix	Support/Process: Add comments about PageSize and AllocationGranularity on Cygwin and Win32.	2013-09-04 14:12:26 +00:00
Windows	Support/Process: Add comments about PageSize and AllocationGranularity on Cygwin and Win32.	2013-09-04 14:12:26 +00:00
Allocator.cpp	[BumpPtrAllocator] Move DefaultSlabAllocator to a member of BumpPtrAllocator, instead of a static variable.	2013-08-28 01:02:21 +00:00
APFloat.cpp	Change default # of digits for APFloat::toString	2013-08-29 23:44:34 +00:00
APInt.cpp
APSInt.cpp
Atomic.cpp
BlockFrequency.cpp
BranchProbability.cpp
circular_raw_ostream.cpp
CMakeLists.txt	Move generic isPrint and columnWidth implementations to a separate header/source to allow using both generic and system-dependent versions on win32.	2013-09-04 16:00:12 +00:00
CommandLine.cpp
Compression.cpp	Expose CRC-32 implementation from zlib	2013-08-14 16:03:29 +00:00
ConstantRange.cpp
ConvertUTF.c
ConvertUTFWrapper.cpp
COPYRIGHT.regex
CrashRecoveryContext.cpp
DAGDeltaAlgorithm.cpp
DataExtractor.cpp
DataStream.cpp
Debug.cpp
DeltaAlgorithm.cpp
Disassembler.cpp	Remove some std stream usage from Support and TableGen	2013-08-06 22:51:21 +00:00
Dwarf.cpp	Move accelerator table defines and constants to Dwarf.h since	2013-09-05 18:20:16 +00:00
DynamicLibrary.cpp
Errno.cpp	Fix some rather confusing indentation and control flow in the errno	2013-09-02 05:55:10 +00:00
ErrorHandling.cpp
FileOutputBuffer.cpp
FileUtilities.cpp
FoldingSet.cpp
FormattedStream.cpp
GraphWriter.cpp
Hashing.cpp
Host.cpp	X86: Add a description of the Intel Atom Silvermont CPU.	2013-08-30 14:05:32 +00:00
IncludeFile.cpp
IntEqClasses.cpp
IntervalMap.cpp
IntrusiveRefCntPtr.cpp
IsInf.cpp
IsNAN.cpp
LLVMBuild.txt
Locale.cpp	Move generic isPrint and columnWidth implementations to a separate header/source to allow using both generic and system-dependent versions on win32.	2013-09-04 16:00:12 +00:00
LockFileManager.cpp	Fix boolean logic in LockFileManager and test it	2013-08-07 01:22:04 +00:00
Makefile
ManagedStatic.cpp
MD5.cpp
Memory.cpp
MemoryBuffer.cpp	MemoryBuffer.cpp: Don't peek the next page if file is multiple of physical pagesize(4k) but is not multiple of AllocationGranularity(64k), when a null terminator is required, on cygwin and win32.	2013-09-04 14:12:19 +00:00
MemoryObject.cpp
Mutex.cpp
Path.cpp	Fixes a bug when iterating on paths	2013-08-12 17:10:49 +00:00
PluginLoader.cpp
PrettyStackTrace.cpp
Process.cpp
Program.cpp
raw_os_ostream.cpp
raw_ostream.cpp
README.txt.system
regcclass.h
regcname.h
regcomp.c
regengine.inc
regerror.c
regex2.h
regex_impl.h
Regex.cpp	Fix off-by-one error in Regex::isValid	2013-08-08 17:32:45 +00:00
regexec.c
regfree.c
regstrlcpy.c
regutils.h
RWMutex.cpp
SearchForAddressOfSpecialSymbol.cpp
Signals.cpp
SmallPtrSet.cpp
SmallVector.cpp
SourceMgr.cpp
Statistic.cpp
StreamableMemoryObject.cpp
StringExtras.cpp
StringMap.cpp
StringPool.cpp
StringRef.cpp	Added const qualifier to StringRef::edit_distance member function	2013-08-24 01:50:41 +00:00
StringRefMemoryObject.cpp
system_error.cpp
SystemUtils.cpp
TargetRegistry.cpp
Threading.cpp
ThreadLocal.cpp
Timer.cpp
TimeValue.cpp
ToolOutputFile.cpp
Triple.cpp
Twine.cpp
Unicode.cpp	Move generic isPrint and columnWidth implementations to a separate header/source to allow using both generic and system-dependent versions on win32.	2013-09-04 16:00:12 +00:00
Valgrind.cpp
Watchdog.cpp
YAMLParser.cpp
YAMLTraits.cpp	Tighten up the yamilizer so it stops eliding empty sequences if the embedded empty sequence is the first key/value in a map which is itself in a sequence.	2013-08-15 23:17:53 +00:00

README.txt.system

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