llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-12-15 04:30:12 +00:00

History

Argyrios Kyrtzidis 541b2a4aa3 In MemoryBuffer::getOpenFile() make sure that the buffer is null-terminated if the caller requested a null-terminated one. When mapping the file there could be a racing issue that resulted in the file being larger than the FileSize passed by the caller. We already have an assertion for this in MemoryBuffer::init() but have a runtime guarantee that the buffer will be null-terminated, so do a copy that adds a null-terminator. Protects against crash of rdar://11161822. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154082 91177308-0d34-0410-b5e6-96231b3b80d8		2012-04-05 04:23:56 +00:00
..
Unix	Fix GetMainExecutable on kFreeBSD.	2012-03-26 12:05:51 +00:00
Windows	Change default error_code ctor to a 'named ctor' so it's more self-documenting.	2012-02-09 19:24:12 +00:00
Allocator.cpp	BumpPtrAllocator: Make sure threshold cannot be initialized with a value smaller than the slab size.	2012-03-01 22:10:16 +00:00
APFloat.cpp	Replace the hashing functions on APInt and APFloat with overloads of the	2012-03-04 12:02:57 +00:00
APInt.cpp	Move APInt::operator[] inline.	2012-03-14 00:38:15 +00:00
APSInt.cpp
Atomic.cpp
BlockFrequency.cpp
BranchProbability.cpp
circular_raw_ostream.cpp
CMakeLists.txt	Add YAML parser to Support.	2012-04-03 23:09:22 +00:00
CommandLine.cpp	Don't cast away constant qualifier.	2012-03-12 10:51:06 +00:00
ConstantRange.cpp	Convert assert(0) to llvm_unreachable	2012-02-07 05:05:23 +00:00
COPYRIGHT.regex
CrashRecoveryContext.cpp	Remove dead code. Improve llvm_unreachable text. Simplify some control flow.	2012-02-19 11:37:01 +00:00
DAGDeltaAlgorithm.cpp
DataExtractor.cpp	Remove extra semi-colons.	2012-02-22 17:25:00 +00:00
DataStream.cpp	Change default error_code ctor to a 'named ctor' so it's more self-documenting.	2012-02-09 19:24:12 +00:00
Debug.cpp
DeltaAlgorithm.cpp
Disassembler.cpp
Dwarf.cpp	Lowercase the tag name to match the rest of dwarf.	2012-03-29 21:35:05 +00:00
DynamicLibrary.cpp
Errno.cpp
ErrorHandling.cpp
FileUtilities.cpp	Change default error_code ctor to a 'named ctor' so it's more self-documenting.	2012-02-09 19:24:12 +00:00
FoldingSet.cpp	Revert commit 152300 (ddunbar) since it still seems to be breaking	2012-03-08 09:32:21 +00:00
FormattedStream.cpp
GraphWriter.cpp	Silence unused function warning when graphviz is not available.	2012-03-08 22:15:23 +00:00
Hashing.cpp	Add the source file with trivial definitions in it that was missing from	2012-03-01 18:58:59 +00:00
Host.cpp	Remove unreachable code. (replace with llvm_unreachable to help GCC where necessary)	2012-01-17 04:43:56 +00:00
IncludeFile.cpp
IntEqClasses.cpp
IntervalMap.cpp
IntrusiveRefCntPtr.cpp
IsInf.cpp
IsNAN.cpp
JSONParser.cpp	fix typo	2012-02-06 05:29:29 +00:00
LLVMBuild.txt
LockFileManager.cpp	Move Clang's file-level locking facility over to LLVM's support	2012-01-29 20:15:10 +00:00
Makefile
ManagedStatic.cpp
Memory.cpp
MemoryBuffer.cpp	In MemoryBuffer::getOpenFile() make sure that the buffer is null-terminated if	2012-04-05 04:23:56 +00:00
MemoryObject.cpp	Make MemoryObject accessor members const again	2012-02-29 01:09:06 +00:00
Mutex.cpp	Persuade GCC that there is nothing worth warning about here (there isn't).	2012-02-05 14:20:11 +00:00
Path.cpp
PathV2.cpp	[PathV2]: Fix bug in create_directories which caused infinite recursion on	2012-03-21 23:09:14 +00:00
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	Remove dead code.	2012-01-15 01:09:13 +00:00
SearchForAddressOfSpecialSymbol.cpp
Signals.cpp
SmallPtrSet.cpp	Copy the right amount of elements.	2012-03-07 22:48:42 +00:00
SmallVector.cpp
SourceMgr.cpp	Removing unused default switch cases in switches over enums that already account for all enumeration values explicitly.	2012-01-16 23:24:27 +00:00
Statistic.cpp
StreamableMemoryObject.cpp	Make MemoryObject accessor members const again	2012-02-29 01:09:06 +00:00
StringExtras.cpp	Move the implementation of StringRef::split out of StringExtras.cpp	2012-02-21 12:00:25 +00:00
StringMap.cpp	Switch StringMap from an array of structures to a structure of arrays.	2011-12-27 20:35:07 +00:00
StringPool.cpp
StringRef.cpp	Make StringRef::getAsInteger work with all integer types. Before this change	2012-03-10 23:02:54 +00:00
system_error.cpp
SystemUtils.cpp
TargetRegistry.cpp	revert r147542 after comments from Joerg Sonnenberger	2012-01-05 18:28:46 +00:00
Threading.cpp
ThreadLocal.cpp
Timer.cpp
TimeValue.cpp
ToolOutputFile.cpp
Triple.cpp	Add triple support for the IBM BG/P and BG/Q supercomputers.	2012-04-02 18:31:33 +00:00
Twine.cpp
Valgrind.cpp
YAMLParser.cpp	Move yaml::Stream's dtor out of line so it can see Scanner's dtor.	2012-04-04 08:53:34 +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