llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-11-13 06:06:27 +00:00

History

Daniel Dunbar 71e5ea8860 PathV2: Fix a possible infinite loop. - The code could infinite loop trying to create unique files, if the directory containing the unique file exists, but open() calls on non-existent files in the path return ENOENT. This is true on the /dev/fd filesystem, for example. - Will add a clang side test case for this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168081 91177308-0d34-0410-b5e6-96231b3b80d8		2012-11-15 20:24:52 +00:00
..
Unix	PathV2: Fix a possible infinite loop.	2012-11-15 20:24:52 +00:00
Windows	Fix a -Wparentheses warning in the mingw build	2012-09-25 05:24:16 +00:00
Allocator.cpp
APFloat.cpp	Drop the limitation to IEEE floating point types from the fdiv of pow2 -> fmul transform.	2012-11-08 13:58:10 +00:00
APInt.cpp	Revert 'Fix a typo 'iff' => 'if''. iff is an abreviation of if and only if. See: http://en.wikipedia.org/wiki/If_and_only_if Commit 164767	2012-09-27 10:14:43 +00:00
APSInt.cpp
Atomic.cpp	XLC supports the same atomic functions as GCC, use them.	2012-11-02 20:54:45 +00:00
BlockFrequency.cpp
BranchProbability.cpp
circular_raw_ostream.cpp
CMakeLists.txt	Don't explicitly require RTTI and EH.	2012-10-26 12:15:29 +00:00
CommandLine.cpp	Enable response files in all tools. Patch by Liu, Yaxun (Sam). I have simplified	2012-10-09 19:52:10 +00:00
ConstantRange.cpp
COPYRIGHT.regex
CrashRecoveryContext.cpp
DAGDeltaAlgorithm.cpp	Add LLVM_OVERRIDE to methods that override their base classes.	2012-09-23 02:12:10 +00:00
DataExtractor.cpp
DataStream.cpp	Add LLVM_OVERRIDE to methods that override their base classes.	2012-09-23 02:12:10 +00:00
Debug.cpp
DeltaAlgorithm.cpp
Disassembler.cpp
Dwarf.cpp
DynamicLibrary.cpp	Fix Android build of gtest and lib/Support.	2012-09-04 09:14:45 +00:00
Errno.cpp	[Support] Fix StrError on Windows to actually return the error string...	2012-11-01 00:34:09 +00:00
ErrorHandling.cpp	Revert 167755/167760. We don't want to emit crash diagnostics on command-line syntax errors.	2012-11-13 16:42:19 +00:00
FileOutputBuffer.cpp
FileUtilities.cpp
FoldingSet.cpp	Add operator< for FoldingSetNodeID.	2012-09-08 04:25:29 +00:00
FormattedStream.cpp
GraphWriter.cpp
Hashing.cpp
Host.cpp	Add support for Cortex-A15 host recognition.	2012-10-31 09:07:37 +00:00
IncludeFile.cpp
IntEqClasses.cpp
IntervalMap.cpp
IntrusiveRefCntPtr.cpp
IsInf.cpp
IsNAN.cpp
LLVMBuild.txt
Locale.cpp
LocaleGeneric.inc
LocaleWindows.inc
LocaleXlocale.inc
LockFileManager.cpp	Fix Android build of gtest and lib/Support.	2012-09-04 09:14:45 +00:00
Makefile	Don't explicitly require RTTI and EH.	2012-10-26 12:15:29 +00:00
ManagedStatic.cpp
Memory.cpp	This patch adds memory support functions which will later be used to implement section-specific protection handling in MCJIT.	2012-09-19 20:46:12 +00:00
MemoryBuffer.cpp	MemoryBuffer: Windows doesn't define S_IFIFO.	2012-11-06 17:08:09 +00:00
MemoryObject.cpp
Mutex.cpp
Path.cpp
PathV2.cpp
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
regexec.c
regfree.c
regstrlcpy.c
regutils.h
RWMutex.cpp
SearchForAddressOfSpecialSymbol.cpp
Signals.cpp
SmallPtrSet.cpp
SmallVector.cpp
SourceMgr.cpp
Statistic.cpp	Revert 'Fix a typo 'iff' => 'if''. iff is an abreviation of if and only if. See: http://en.wikipedia.org/wiki/If_and_only_if Commit 164767	2012-09-27 10:14:43 +00:00
StreamableMemoryObject.cpp	Add LLVM_OVERRIDE to methods that override their base classes.	2012-09-23 02:12:10 +00:00
StringExtras.cpp
StringMap.cpp	Add some __builtin_expect magic to StringMap.	2012-08-29 22:57:04 +00:00
StringPool.cpp
StringRef.cpp	Improve overflow detection in StringRef::getAsUnsignedInteger().	2012-10-02 20:01:48 +00:00
system_error.cpp	Add LLVM_OVERRIDE to methods that override their base classes.	2012-09-23 02:12:10 +00:00
SystemUtils.cpp
TargetRegistry.cpp
Threading.cpp
ThreadLocal.cpp
Timer.cpp
TimeValue.cpp
ToolOutputFile.cpp
Triple.cpp	Add support for SPIR64 target - the 64bit counterpart of SPIR.	2012-11-15 10:35:47 +00:00
Twine.cpp
Valgrind.cpp
YAMLParser.cpp	YAMLParser: Fix invalid reads when encountering incorrectly quoted scalar.	2012-09-26 15:52:15 +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