llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-10-01 10:57:21 +00:00

History

Dan Gohman 3e6157de57 Remove the Blackfin backend. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142880 91177308-0d34-0410-b5e6-96231b3b80d8		2011-10-25 00:05:42 +00:00
..
Unix	sys::Process: Add a SetWorkingDirectory method.	2011-09-23 23:23:36 +00:00
Windows	Windows/Path.inc: [PR8460] Get rid of ScopedNullTerminator. Thanks to Zvi Rackover!	2011-10-24 03:27:19 +00:00
Allocator.cpp
APFloat.cpp	Fix APFloat::getSmallestNormalized so the shift doesn't depend on undefined behavior. Patch from Ahmed Charles.	2011-10-12 21:56:19 +00:00
APInt.cpp	Fix APInt::operator*= so that it computes the correct result for large integers where there is unsigned overflow. Fix APFloat::toString so that it doesn't depend on the incorrect behavior in common cases (and computes the correct result in some rare cases). Fixes PR11086.	2011-10-07 23:40:49 +00:00
APSInt.cpp
Atomic.cpp
BlockFrequency.cpp
BranchProbability.cpp	Print branch probabilities as percentages.	2011-10-23 11:32:54 +00:00
circular_raw_ostream.cpp
CMakeLists.txt
CommandLine.cpp
ConstantRange.cpp
COPYRIGHT.regex
CrashRecoveryContext.cpp
DAGDeltaAlgorithm.cpp
DataExtractor.cpp
Debug.cpp
DeltaAlgorithm.cpp
Disassembler.cpp	Clean up a few references to System/. We still have docs/SystemLibrary.html	2011-10-11 20:02:52 +00:00
Dwarf.cpp
DynamicLibrary.cpp
Errno.cpp
ErrorHandling.cpp
FileUtilities.cpp
FoldingSet.cpp
FormattedStream.cpp
GraphWriter.cpp
Host.cpp
IncludeFile.cpp	Clean up a few references to System/. We still have docs/SystemLibrary.html	2011-10-11 20:02:52 +00:00
IntEqClasses.cpp
IntervalMap.cpp
IsInf.cpp
IsNAN.cpp
Makefile
ManagedStatic.cpp
Memory.cpp	The Mips specific function for instruction cache invalidation cannot be	2011-10-10 18:41:02 +00:00
MemoryBuffer.cpp	Remove unused include of sys/uio.h in MemoryBuffer.cpp. It was not correctly protected by ifdef either.	2011-10-20 21:57:46 +00:00
MemoryObject.cpp
Mutex.cpp	Clean up a few references to System/. We still have docs/SystemLibrary.html	2011-10-11 20:02:52 +00:00
Path.cpp
PathV2.cpp
PluginLoader.cpp
PrettyStackTrace.cpp	Add more initializers to quiet a clang warning.	2011-10-05 05:00:26 +00:00
Process.cpp
Program.cpp
raw_os_ostream.cpp
raw_ostream.cpp	Avoid undefined behavior in signed integer negation. Patch by Ahmed Charles.	2011-10-13 22:49:56 +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	Clean up a few references to System/. We still have docs/SystemLibrary.html	2011-10-11 20:02:52 +00:00
SearchForAddressOfSpecialSymbol.cpp	These symbols appear to be visible by SearchForAddressOfSymbol and no longer	2011-09-27 20:01:41 +00:00
Signals.cpp
SmallPtrSet.cpp
SmallVector.cpp
SourceMgr.cpp	remove the dead 'ShowLine' argument from SMDiagnostic.	2011-10-16 05:47:55 +00:00
Statistic.cpp	Let printf do the formatting instead aligning strings ourselves.	2011-10-16 16:30:34 +00:00
StringExtras.cpp
StringMap.cpp
StringPool.cpp
StringRef.cpp	Fix handling of the From parameter in StringRef::find.	2011-10-17 20:49:40 +00:00
system_error.cpp
SystemUtils.cpp
TargetRegistry.cpp
Threading.cpp
ThreadLocal.cpp	Clean up a few references to System/. We still have docs/SystemLibrary.html	2011-10-11 20:02:52 +00:00
Timer.cpp	Let printf do the formatting instead aligning strings ourselves.	2011-10-16 16:30:34 +00:00
TimeValue.cpp
ToolOutputFile.cpp
Triple.cpp	Remove the Blackfin backend.	2011-10-25 00:05:42 +00:00
Twine.cpp
Valgrind.cpp

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