llvm/lib/Support
Serge Pavlov 15f7935637 Fix file name resolution in nested response files
If a response file in construct `@file` was specified by relative name,
constructs `@file` nested within it were resolved incorrectly if the
flag RelativeNames in call to ExpandResponseFile was set to true.
This feature is used in configuration files, tests for it are in
respective change (see D24933).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@287482 91177308-0d34-0410-b5e6-96231b3b80d8
2016-11-20 06:25:07 +00:00
..
Unix Use _Unwind_Backtrace on Apple platforms. 2016-11-14 17:56:18 +00:00
Windows Removed FIXME from include ordering comment 2016-10-24 17:15:05 +00:00
Allocator.cpp Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC) 2015-06-23 09:49:53 +00:00
APFloat.cpp Fix memory leaks (coverity issues 1365586 & 1365591) 2016-11-08 10:00:45 +00:00
APInt.cpp Missing includes. 2016-09-14 08:55:18 +00:00
APSInt.cpp Remove some unneeded headers and replace some headers with forward class declarations (NFC) 2016-04-16 07:51:28 +00:00
ARMBuildAttrs.cpp Use StringRef instead of raw pointers in ARMBuildAttrs (NFC) 2016-10-05 00:15:18 +00:00
ARMWinEH.cpp Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC) 2015-06-23 09:49:53 +00:00
Atomic.cpp Remove all of the legacy home-grown atomic operations LLVM provided 2016-06-02 17:11:11 +00:00
BlockFrequency.cpp Add - and -= operators to BlockFrequency using saturating arithmetic. 2015-10-12 18:34:00 +00:00
BranchProbability.cpp Annotate dump() methods with LLVM_DUMP_METHOD, addressing Richard Smith r259192 post commit comment. 2016-01-29 20:50:44 +00:00
CachePruning.cpp Remove TimeValue usage from llvm/Support 2016-10-24 10:59:17 +00:00
Chrono.cpp Reapply "Add Chrono.h - std::chrono support header" 2016-10-20 12:05:50 +00:00
circular_raw_ostream.cpp
CMakeLists.txt Remove TimeValue class 2016-11-16 10:46:48 +00:00
COM.cpp Make an RAII com initializer. 2015-04-27 17:19:26 +00:00
CommandLine.cpp Fix file name resolution in nested response files 2016-11-20 06:25:07 +00:00
Compression.cpp Define a dummy zlib::uncompress when zlib is not available. 2016-09-12 13:00:51 +00:00
ConvertUTF.cpp Move UTF functions into namespace llvm. 2016-09-30 00:38:45 +00:00
ConvertUTFWrapper.cpp [NFC] Header cleanup 2016-04-18 09:17:29 +00:00
COPYRIGHT.regex
CrashRecoveryContext.cpp Revert "Fix Clang-tidy modernize-deprecated-headers warnings in remaining files; other minor fixes." 2016-04-05 20:45:04 +00:00
DAGDeltaAlgorithm.cpp Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC) 2015-06-23 09:49:53 +00:00
DataExtractor.cpp
Debug.cpp The --debug-only option now takes a comma separated list of debug types. 2016-01-12 10:23:13 +00:00
DeltaAlgorithm.cpp Missing includes. 2016-09-14 08:55:18 +00:00
Dwarf.cpp Refactor DW_LNE_* into Dwarf.def 2016-10-28 22:57:02 +00:00
DynamicLibrary.cpp Add more wrappers for symbol APIs to the C API. 2015-06-09 15:57:30 +00:00
Errno.cpp Revert "Fix Clang-tidy modernize-deprecated-headers warnings in remaining files; other minor fixes." 2016-04-05 20:45:04 +00:00
Error.cpp Revert "Add link-time detection of LLVM_ABI_BREAKING_CHECKS mismatch" 2016-11-18 20:02:34 +00:00
ErrorHandling.cpp [Support] Make all Errors convertible to std::error_code. 2016-03-23 23:57:28 +00:00
FileOutputBuffer.cpp Fix a real temp file leak in FileOutputBuffer 2016-09-02 01:10:53 +00:00
FileUtilities.cpp Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes. 2016-08-23 17:14:32 +00:00
FoldingSet.cpp PR30711: Fix incorrect profiling of 'long long' in FoldingSet, then use it to 2016-10-16 17:49:09 +00:00
FormattedStream.cpp Re-sort includes with sort-includes.py and insert raw_ostream.h where it's used. 2015-03-23 19:32:43 +00:00
FormatVariadic.cpp [Support] Introduce llvm::formatv() function. 2016-11-11 23:57:40 +00:00
GraphWriter.cpp [Support] Reapply r245289 "Always wait for GraphViz before opening the viewer" 2015-09-18 10:56:30 +00:00
Hashing.cpp
Host.cpp Add computeHostNumPhysicalCores() implementation for Darwin 2016-10-19 22:36:07 +00:00
IntEqClasses.cpp Remove uses of builtin comma operator. 2016-02-18 22:09:30 +00:00
IntervalMap.cpp
IntrusiveRefCntPtr.cpp
JamCRC.cpp [NFC] Header cleanup 2016-04-18 09:17:29 +00:00
LEB128.cpp
LineIterator.cpp Add CRLF support to LineIterator. 2014-11-03 14:09:47 +00:00
LLVMBuild.txt Add an c++ itanium demangler to llvm. 2016-09-06 19:16:48 +00:00
Locale.cpp [NFC] Header cleanup 2016-04-18 09:17:29 +00:00
LockFileManager.cpp Missing includes. 2016-09-14 08:55:18 +00:00
ManagedStatic.cpp [ManagedStatic] Reimplement double-checked locking with std::atomic. 2016-06-29 15:04:07 +00:00
MathExtras.cpp Revert "Fix Clang-tidy modernize-deprecated-headers warnings in remaining files; other minor fixes." 2016-04-05 20:45:04 +00:00
MD5.cpp Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC) 2015-06-23 09:49:53 +00:00
Memory.cpp
MemoryBuffer.cpp Add interface to compute number of physical cores on host system 2016-10-13 17:43:20 +00:00
Mutex.cpp Revert "Fix Clang-tidy modernize-deprecated-headers warnings in remaining files; other minor fixes." 2016-04-05 20:45:04 +00:00
NativeFormatting.cpp [Support] Introduce llvm::formatv() function. 2016-11-11 23:57:40 +00:00
Options.cpp Defining a new API for debug options that doesn't rely on static global cl::opts. 2014-10-15 21:54:35 +00:00
Path.cpp Simplify identify_magic. 2016-11-15 01:57:05 +00:00
PluginLoader.cpp
PrettyStackTrace.cpp Convert ENABLE_BACKTRACES into a 0/1 definition. 2016-09-30 20:04:24 +00:00
Process.cpp [Support] Creation of minidump after compiler crash on Windows 2016-05-04 16:56:51 +00:00
Program.cpp Purge unused includes throughout libSupport. 2015-03-23 18:07:13 +00:00
RandomNumberGenerator.cpp [Support] Fix undefined behavior in RandomNumberGenerator. 2016-10-11 18:17:26 +00:00
raw_os_ostream.cpp
raw_ostream.cpp [Support] Introduce llvm::formatv() function. 2016-11-11 23:57:40 +00:00
README.txt.system
regcclass.h
regcname.h
regcomp.c Use wider type for overflow check on LLP64 platforms like Win64, found by clang-cl -Wtautological 2015-02-26 21:07:30 +00:00
regengine.inc
regerror.c
regex2.h
regex_impl.h
Regex.cpp [Support] - Fix possible crash in match() of llvm::Regex. 2016-09-02 08:44:46 +00:00
regexec.c
regfree.c
regstrlcpy.c
regutils.h
RWMutex.cpp Revert "Fix Clang-tidy modernize-deprecated-headers warnings in remaining files; other minor fixes." 2016-04-05 20:45:04 +00:00
ScaledNumber.cpp Remove some unneeded headers and replace some headers with forward class declarations (NFC) 2016-04-16 07:51:28 +00:00
ScopedPrinter.cpp [Support] Improve flexibility of binary blob formatter. 2016-11-10 20:16:45 +00:00
SearchForAddressOfSpecialSymbol.cpp Revert "Fix Clang-tidy modernize-deprecated-headers warnings in remaining files; other minor fixes." 2016-04-05 20:45:04 +00:00
SHA1.cpp Attempt to fix big-endian buildbots. 2016-11-20 01:41:28 +00:00
Signals.cpp Search for llvm-symbolizer binary in the same directory as argv[0], before 2016-06-09 00:53:21 +00:00
SmallPtrSet.cpp Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes. 2016-08-23 17:14:32 +00:00
SmallVector.cpp [ADT] Assert that SmallVectorBase::grow_pod() successfully reallocates memory. 2015-06-09 09:47:46 +00:00
SourceMgr.cpp Use StringRef for MemoryBuffer identifier API (NFC) 2016-10-01 16:38:28 +00:00
SpecialCaseList.cpp Do a sweep over move ctors and remove those that are identical to the default. 2016-10-20 12:20:28 +00:00
Statistic.cpp Statistic/Timer: Include timers in PrintStatisticsJSON(). 2016-11-18 19:43:24 +00:00
StringExtras.cpp Purge unused includes throughout libSupport. 2015-03-23 18:07:13 +00:00
StringMap.cpp Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes. 2016-08-23 17:14:32 +00:00
StringPool.cpp
StringRef.cpp [Support] Add StringRef::find_lower and contains_lower. 2016-11-12 17:17:12 +00:00
StringSaver.cpp Use StringRef in StringSaver API (NFC) 2016-10-05 01:32:41 +00:00
SystemUtils.cpp Purge unused includes throughout libSupport. 2015-03-23 18:07:13 +00:00
TargetParser.cpp [ARM]: Add Cortex-R52 target to LLVM 2016-10-07 12:06:40 +00:00
TargetRegistry.cpp Revert "Use StringRef instead of raw pointer in TargetRegistry API (NFC)" 2016-10-01 07:08:23 +00:00
Threading.cpp Rename interface for querying physical hardware concurrency 2016-10-17 14:56:53 +00:00
ThreadLocal.cpp ThreadLocal: Move Unix-specific code out of Support/ThreadLocal.cpp 2014-12-15 01:19:53 +00:00
ThreadPool.cpp Removing whitespace from test commit rL273447 2016-06-22 18:01:11 +00:00
Timer.cpp Statistic/Timer: Include timers in PrintStatisticsJSON(). 2016-11-18 19:43:24 +00:00
ToolOutputFile.cpp Modernize raw_fd_ostream's constructor a bit. 2014-08-25 18:16:47 +00:00
Triple.cpp Add a little endian variant of TCE. 2016-11-16 15:22:23 +00:00
Twine.cpp Annotate dump() methods with LLVM_DUMP_METHOD, addressing Richard Smith r259192 post commit comment. 2016-01-29 20:50:44 +00:00
Unicode.cpp
Valgrind.cpp Add a missing include of cstddef needed for size_t. 2015-10-15 19:41:54 +00:00
Watchdog.cpp
xxhash.cpp Add xxhash to llvm. 2016-09-27 15:45:57 +00:00
YAMLParser.cpp Support: Return void from Scanner::scan_ns_uri_char, no one uses the result 2016-10-16 22:01:22 +00:00
YAMLTraits.cpp [YAML] Fix YAML tags appearing before the start of sequence elements 2016-06-28 21:10:26 +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