llvm-6502/lib/Support
Chandler Carruth 48ac8e9be7 Move TargetRegistry.cpp from lib/Support to lib/Target where it belongs.
The header file was already properly located. The previous need for it
in Support had to do with the version string printing which was fixed in
r135757.

Also update build dependencies where libraries that needed the
functionality of the Target library (in the form of the TargetRegistry)
were picking it up via Support. This is pretty pervasive, essentially
every TargetInfo library (ARMInfo, etc) uses TargetRegistry, making it
depend on Target. All of these were previously just sneaking by.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135760 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-22 08:16:53 +00:00
..
Unix By default mkstemp() creates a temporary file with mode 0600, but the mode 2011-07-05 18:55:31 +00:00
Windows Windows/DynamicLibrary.inc: Fix trivial warnings. Thanks to John Myers! 2011-07-09 08:41:20 +00:00
Allocator.cpp Add BumpPtrAllocator::getTotalMemory() to allow clients to query how much memory a BumpPtrAllocator allocated. 2011-04-18 22:44:46 +00:00
APFloat.cpp Add APInt(numBits, ArrayRef<uint64_t> bigVal) constructor to prevent future ambiguity 2011-07-18 21:45:40 +00:00
APInt.cpp Add APInt(numBits, ArrayRef<uint64_t> bigVal) constructor to prevent future ambiguity 2011-07-18 21:45:40 +00:00
APSInt.cpp
Atomic.cpp
BranchProbability.cpp Branch profiling: floating-point avoidance. 2011-06-11 01:05:22 +00:00
circular_raw_ostream.cpp
CMakeLists.txt Move TargetRegistry.cpp from lib/Support to lib/Target where it belongs. 2011-07-22 08:16:53 +00:00
CommandLine.cpp Move the registered target printing in version strings completely out of 2011-07-22 07:50:48 +00:00
ConstantRange.cpp Fix the implementation of ConstantRange::sub(ConstantRange). Patch by Xi Wang! 2011-06-22 21:13:46 +00:00
COPYRIGHT.regex
CrashRecoveryContext.cpp Properly initialize all fields in CrashReporterCleanupContext. This caused the buildbot failure earlier. 2011-03-22 04:33:13 +00:00
DAGDeltaAlgorithm.cpp
Debug.cpp
DeltaAlgorithm.cpp
Disassembler.cpp
Dwarf.cpp Doug convinced me that DW_AT_APPLE_objc_complete_type is more appropriate name. 2011-05-12 21:29:42 +00:00
DynamicLibrary.cpp
Errno.cpp lib/Support/Errno.cpp: Check strerror_s() with HAVE_DECL_STRERROR_S in config.h.*. 2011-02-09 04:18:48 +00:00
ErrorHandling.cpp Like the coding standards say, do not use "using namespace std". 2011-04-23 09:06:00 +00:00
FileUtilities.cpp Fix a ton of comment typos found by codespell. Patch by 2011-04-15 05:18:47 +00:00
FoldingSet.cpp Simplify & microoptimize code. No intended functionality change. 2011-07-18 00:00:20 +00:00
FormattedStream.cpp
GraphWriter.cpp
Host.cpp Update comments for SandyBridge CPU identifiers. 2011-07-08 22:33:59 +00:00
IncludeFile.cpp
IntEqClasses.cpp
IntervalMap.cpp
IsInf.cpp
IsNAN.cpp
Makefile
ManagedStatic.cpp
Memory.cpp
MemoryBuffer.cpp random comment cleanups. 2011-05-22 00:50:53 +00:00
MemoryObject.cpp
Mutex.cpp Check the errorcode. 2011-02-18 00:47:07 +00:00
Path.cpp Add support for 64-bit object files to Path. 2011-04-22 03:50:19 +00:00
PathV2.cpp Implement a function from PathV2 whose definition is missing. 2011-02-15 17:51:19 +00:00
PluginLoader.cpp
PrettyStackTrace.cpp Fix a ton of comment typos found by codespell. Patch by 2011-04-15 05:18:47 +00:00
Process.cpp
Program.cpp Have Program::Wait return -2 for crashed and timeouts instead of embedding 2011-05-21 00:56:46 +00:00
raw_os_ostream.cpp
raw_ostream.cpp raw_ostream: [PR6745] Tweak formatting (double)%e for Windows hosts. 2011-03-18 09:30:10 +00:00
README.txt.system
regcclass.h
regcname.h
regcomp.c lib/Support/regcomp.c: Fix cygwin warning. 2011-03-08 12:25:29 +00:00
regengine.inc
regerror.c
regex2.h
regex_impl.h
Regex.cpp regexes are allowed to match empty things, e.g. {{.*}} in filecheck. 2011-04-09 06:29:24 +00:00
regexec.c
regfree.c
regstrlcpy.c
regutils.h
RWMutex.cpp
SearchForAddressOfSpecialSymbol.cpp
Signals.cpp Fix a ton of comment typos found by codespell. Patch by 2011-04-15 05:18:47 +00:00
SmallPtrSet.cpp Prevent infinite growth of SmallPtrSet instances. 2011-03-30 18:32:48 +00:00
SmallVector.cpp
SourceMgr.cpp Add new -d option to tblgen. It writes a make(1)-style dependency file. 2011-06-01 13:10:15 +00:00
Statistic.cpp Support: Add llvm::AreStatisticsEnabled(). 2011-02-26 23:17:12 +00:00
StringExtras.cpp move tier out of an anonymous namespace, it doesn't make sense 2011-07-21 06:21:31 +00:00
StringMap.cpp Reset StringMap's NumTombstones on clears and rehashes. 2011-03-30 18:32:51 +00:00
StringPool.cpp
StringRef.cpp Remove bounded StringRef::compare() since nothing but Clang SA was using it and it is just as easy to use StringRef::substr() preceding StringRef::compare() to achieve the same thing. 2011-04-28 20:20:12 +00:00
system_error.cpp
SystemUtils.cpp
Threading.cpp
ThreadLocal.cpp
Timer.cpp
TimeValue.cpp
ToolOutputFile.cpp
Triple.cpp lib/Support/Triple.cpp: Recognize "-march=ppc32" to llc properly, as quick hack. 2011-07-22 04:02:22 +00:00
Twine.cpp In Twine::str(), if the Twine stores only a std::string, just return a direct copy of that instead of first copying to a SmallString and converting that to a std::string. Also fix some indentation. 2011-07-15 11:05:37 +00:00
Valgrind.cpp Revert previous commit. It seems that whether casting to void 2011-07-02 13:14:22 +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