llvm-6502/lib/Support
2012-06-28 19:09:53 +00:00
..
Unix Add permissions(), map_file_pages(), and unmap_file_pages() to llvm::sys::fs and add unit test. Unix is implemented. Windows side needs to be implemented. 2012-06-20 00:28:54 +00:00
Windows Unbreak the MSVC build: add return to unimplemented functions. 2012-06-20 04:08:49 +00:00
Allocator.cpp
APFloat.cpp
APInt.cpp Fix a crash in APInt::lshr when shiftAmt > BitWidth. 2012-06-08 18:04:52 +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
ConstantRange.cpp add ConstantRange::difference (to perform set difference/relative complement) 2012-06-28 16:10:13 +00:00
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
DynamicLibrary.cpp
Errno.cpp llvm/lib/Support/Errno.cpp: [Win32] Fix usage of strerror_s(). 2012-06-24 03:51:04 +00:00
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 Fix -Wcovered-switch-default warning. 2012-05-24 07:51:46 +00:00
Hashing.cpp
Host.cpp Implement getHostCPUName for ARM/linux. This will be used to implement -march=native in clang. 2012-06-26 21:36:32 +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 Remove an "else" that snuck in after a "return" ;) 2012-06-20 20:38:36 +00:00
MemoryObject.cpp
Mutex.cpp
Path.cpp PR13013: ELF Type identification fails for MSB type ELF files. 2012-06-25 14:48:43 +00:00
PathV2.cpp [Support/PathV2] Fix out of bounds access in identify_magic when the file is empty. 2012-06-19 05:29:57 +00:00
PluginLoader.cpp
PrettyStackTrace.cpp
Process.cpp Support/Process: Move llvm::sys::Process::GetRandomNumber() from Process.cpp to Unix/Process.inc. 2012-05-06 08:24:18 +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 Don't assume size_t is unsigned long long. 2012-05-07 18:12:42 +00:00
Statistic.cpp
StreamableMemoryObject.cpp Don't assert when given an empty range. 2012-06-20 00:16:40 +00:00
StringExtras.cpp
StringMap.cpp Fix PR13148, an inf-loop in StringMap. 2012-06-19 17:40:35 +00:00
StringPool.cpp
StringRef.cpp [Support/StringRef] Add find_last_not_of and {r,l,}trim. 2012-05-11 22:08:50 +00:00
system_error.cpp
SystemUtils.cpp
TargetRegistry.cpp Fix it so llvm-objdump -arch does accept x86 and x86-64 as valid arch names. 2012-05-08 23:38:45 +00:00
Threading.cpp
ThreadLocal.cpp Fix ThreadLocalImpl::getInstance for --disable-threads. 2012-06-26 17:13:58 +00:00
Timer.cpp
TimeValue.cpp
ToolOutputFile.cpp
Triple.cpp Enable automatic GCC<->LLVM intrinsic translation for mips. 2012-06-28 19:09:53 +00:00
Twine.cpp
Valgrind.cpp
YAMLParser.cpp Convert comments to proper Doxygen comments. 2012-06-09 00:01:45 +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