Lang Hames 5a6a2a5321 [Support] Add error handling to sys::Process::getPageSize(). ... This patch changes the return type of sys::Process::getPageSize to Expected<unsigned> to account for the fact that the underlying syscalls used to obtain the page size may fail (see below). For clients who use the page size as an optimization only this patch adds a new method, getPageSizeEstimate, which calls through to getPageSize but discards any error returned and substitues a "reasonable" page size estimate estimate instead. All existing LLVM clients are updated to call getPageSizeEstimate rather than getPageSize. On Unix, sys::Process::getPageSize is implemented in terms of getpagesize or sysconf, depending on which macros are set. The sysconf call is documented to return -1 on failure. On Darwin getpagesize is implemented in terms of sysconf and may also fail (though the manpage documentation does not mention this). These failures have been observed in practice when highly restrictive sandbox permissions have been applied. Without this patch, the result is that getPageSize returns -1, which wreaks havoc on any subsequent code that was assuming a sane page size value. <rdar://problem/41654857> Reviewers: dblaikie, echristo Subscribers: kristina, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D59107 llvm-svn: 360221		2019-05-08 02:11:07 +00:00
..
Unix	[Support] Add error handling to sys::Process::getPageSize().	2019-05-08 02:11:07 +00:00
Windows	[Support] Add error handling to sys::Process::getPageSize().	2019-05-08 02:11:07 +00:00
AArch64TargetParser.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
Allocator.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
AMDGPUMetadata.cpp	[AMDGPU] Factored PAL metadata handling out into its own class	2019-03-20 17:42:00 +00:00
APFloat.cpp	[MC] Fix floating-point literal lexing.	2019-03-28 21:12:28 +00:00
APInt.cpp	[APInt] Optimize umul_ov	2019-04-19 02:06:06 +00:00
APSInt.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
ARMAttributeParser.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
ARMBuildAttrs.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
ARMTargetParser.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
ARMWinEH.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
Atomic.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
BinaryStreamError.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
BinaryStreamReader.cpp	[Support] Add LEB128 support to BinaryStreamReader/Writer.	2019-04-17 15:38:27 +00:00
BinaryStreamRef.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
BinaryStreamWriter.cpp	[Support] Add LEB128 support to BinaryStreamReader/Writer.	2019-04-17 15:38:27 +00:00
BlockFrequency.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
BranchProbability.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
BuryPointer.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
CachePruning.cpp	[CachePruning] Simplify comparator	2019-04-21 06:17:40 +00:00
Chrono.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
circular_raw_ostream.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
CMakeLists.txt	Attempt to recommit r357901	2019-04-08 12:31:12 +00:00
CodeGenCoverage.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
COM.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
CommandLine.cpp	[CommandLine] Allow Options to specify multiple OptionCategory's.	2019-05-07 18:57:01 +00:00
Compression.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
ConvertUTF.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
ConvertUTFWrapper.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
COPYRIGHT.regex
CrashRecoveryContext.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
CRC.cpp	Attempt to recommit r357901	2019-04-08 12:31:12 +00:00
DAGDeltaAlgorithm.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
DataExtractor.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
Debug.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
DebugCounter.cpp
DeltaAlgorithm.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
DJB.cpp	[DJB] Fix variable case after D61178	2019-04-27 15:33:22 +00:00
DynamicLibrary.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
Errno.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
Error.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
ErrorHandling.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
FileCheck.cpp	FileCheck [4/12]: Introduce @LINE numeric expressions	2019-05-02 00:04:38 +00:00
FileOutputBuffer.cpp	FileOutputBuffer: handle mmap(2) failure	2019-01-22 21:49:56 +00:00
FileUtilities.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
FoldingSet.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
FormattedStream.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
FormatVariadic.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
GlobPattern.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
GraphWriter.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
Hashing.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
Host.cpp	Enable AVX512_BF16 instructions, which are supported for BFLOAT16 in Cooper Lake	2019-05-06 08:22:37 +00:00
InitLLVM.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
IntEqClasses.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
IntervalMap.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
ItaniumManglingCanonicalizer.cpp	Update more file headers across all of the LLVM projects in the monorepo	2019-01-19 10:56:40 +00:00
JamCRC.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
JSON.cpp	[Support] Add JSON streaming output API, faster where the heavy value types aren't needed.	2019-04-25 12:51:42 +00:00
KnownBits.cpp	[KnownBits] Add computeForAddCarry()	2019-04-12 18:18:08 +00:00
LEB128.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
LineIterator.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
LLVMBuild.txt	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
Locale.cpp
LockFileManager.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
LowLevelType.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
ManagedStatic.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
MathExtras.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
MD5.cpp
Memory.cpp	Initial implementation of JITLink - A replacement for RuntimeDyld.	2019-04-20 17:10:34 +00:00
MemoryBuffer.cpp	[Support] Add error handling to sys::Process::getPageSize().	2019-05-08 02:11:07 +00:00
Mutex.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
NativeFormatting.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
Optional.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
Options.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
Parallel.cpp	Parallel: only allow the first TaskGroup to run tasks parallelly	2019-04-25 11:33:30 +00:00
Path.cpp	Assigning to a local object in a return statement prevents copy elision. NFC.	2019-04-25 20:09:00 +00:00
PluginLoader.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
PrettyStackTrace.cpp	Support: enable backtraces on Windows	2019-02-27 03:21:50 +00:00
Process.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
Program.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
RandomNumberGenerator.cpp	[CommandLine] Provide parser<unsigned long> instantiation to allow cl::opt<uint64_t> on LP64 platforms	2019-04-24 02:40:20 +00:00
raw_os_ostream.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
raw_ostream.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
regcomp.c
regengine.inc
regerror.c
regex2.h
regex_impl.h
Regex.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
regexec.c
regfree.c
regstrlcpy.c
regutils.h
RWMutex.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
ScaledNumber.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
ScopedPrinter.cpp
SHA1.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
Signals.cpp	Only use argv[0] as the main executable name if it exists.	2019-04-15 22:07:56 +00:00
Signposts.cpp	Annotate timeline in Instruments with passes and other timed regions.	2019-02-19 18:18:31 +00:00
SmallPtrSet.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
SmallVector.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
SourceMgr.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
SpecialCaseList.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
Statistic.cpp	Use llvm::stable_sort	2019-04-23 14:51:27 +00:00
StringExtras.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
StringMap.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
StringPool.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
StringRef.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
StringSaver.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
SymbolRemappingReader.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
SystemUtils.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
TargetParser.cpp	[AMDGPU] Add gfx1010 target definitions	2019-04-24 17:03:15 +00:00
TargetRegistry.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
TarWriter.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
Threading.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
ThreadLocal.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
ThreadPool.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
TimeProfiler.cpp	[Support] Add JSON streaming output API, faster where the heavy value types aren't needed.	2019-04-25 12:51:42 +00:00
Timer.cpp	[Legacy][TimePasses] allow -time-passes reporting into a custom stream	2019-03-22 23:11:08 +00:00
ToolOutputFile.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
TrigramIndex.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
Triple.cpp	[WebAssembly] Add Emscripten OS definition + small_printf	2019-04-03 01:08:35 +00:00
Twine.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
Unicode.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
UnicodeCaseFold.cpp
Valgrind.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
VersionTuple.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
VirtualFileSystem.cpp	VFS: Avoid some unnecessary std::string copies	2019-02-23 23:48:47 +00:00
Watchdog.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
WithColor.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
xxhash.cpp
YAMLParser.cpp	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
YAMLTraits.cpp	[yaml2obj] - Don't crash on invalid inputs.	2019-04-25 09:59:55 +00:00
Z3Solver.cpp	New methods to check for under-/overflow in the SMT API	2019-03-27 16:54:12 +00:00