llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-12-24 06:30:19 +00:00

History

Chad Rosier 21edb397b2 Typos. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160897 91177308-0d34-0410-b5e6-96231b3b80d8		2012-07-27 21:41:59 +00:00
..
Unix	Process: Add sys::Process::FileDescriptorHasColors().	2012-07-20 18:29:38 +00:00
Windows	Try to unbreak the windows build.	2012-07-20 19:49:33 +00:00
Allocator.cpp
APFloat.cpp	Don't add null characters to the end of the APFloat string buffer.	2012-07-25 18:04:24 +00:00
APInt.cpp	PR13326: Fix a subtle edge case in the udiv -> magic multiply generator.	2012-07-11 18:31:59 +00:00
APSInt.cpp
Atomic.cpp
BlockFrequency.cpp
BranchProbability.cpp
circular_raw_ostream.cpp
CMakeLists.txt
CommandLine.cpp	Remove tabs.	2012-07-19 00:15:11 +00:00
ConstantRange.cpp	make ConstantRange::zeroExtend() optimal	2012-07-23 20:33:29 +00:00
COPYRIGHT.regex
CrashRecoveryContext.cpp
DAGDeltaAlgorithm.cpp
DataExtractor.cpp
DataStream.cpp
Debug.cpp	Typos.	2012-07-27 21:41:59 +00:00
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
FormattedStream.cpp
GraphWriter.cpp	Fix -Wcovered-switch-default warning.	2012-05-24 07:51:46 +00:00
Hashing.cpp
Host.cpp	Adds the family codes for the Midview Atom processors so that the	2012-07-19 19:05:37 +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
Makefile
ManagedStatic.cpp
Memory.cpp	Fixed few warnings.	2012-07-12 20:45:36 +00:00
MemoryBuffer.cpp	In MemoryBuffer::getOpenFile() don't verify that the mmap'ed	2012-07-11 20:59:20 +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	raw_ostream: Add a has_colors() method.	2012-07-20 18:29:41 +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
SmallVector.cpp
SourceMgr.cpp	SourceMgr: Use has_colors() instead of just is_displayed() before trying to use	2012-07-20 18:29:44 +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	Remove unused private member variables uncovered by the recent changes to clang's -Wunused-private-field.	2012-07-20 22:05:57 +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