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* Revert r219354. It seems to break some buildbots.Alexey Samsonov2014-10-081-139/+1
| | | | llvm-svn: 219355
* Use llvm-symbolizer to symbolize LLVM/Clang crash dumps.Alexey Samsonov2014-10-081-1/+139
| | | | | | | | | | | | | | | | This change modifies fatal signal handler used in LLVM tools. Now it attempts to find llvm-symbolizer binary and communicates with it in order to turn instruction addresses into function/file/line info entries. This should significantly improve stack traces readability in Debug builds. This feature only works on selected platforms (including Darwin and Linux). If the symbolization fails for some reason, signal handler will fallback to the original behavior. Reviewed in http://reviews.llvm.org/D5610 llvm-svn: 219354
* Unix/Process: Don't use pthread_sigmask if we aren't built with threadsDavid Majnemer2014-10-081-1/+12
| | | | | | | | We won't link in pthreads if we weren't built with LLVM_ENABLE_THREADS which means we won't get access to pthread_sigmask. Use sigprocmask instead. llvm-svn: 219288
* [Support] Add MemoryBuffer::getFileSlice()Nick Kledzik2014-10-081-8/+15
| | | | | | | | | | mach-o supports "fat" files which are a header/table-of-contents followed by a concatenation of mach-o files built for different architectures. Currently, MemoryBuffer has no easy way to map a subrange (slice) of a file which lld will need to select a mach-o slice of a fat file. The new function provides an easy way to map a slice of a file into a MemoryBuffer. Test case included. llvm-svn: 219260
* Remove the IsVolatileSize parameter of getOpenFileSlice.Rafael Espindola2014-10-071-2/+3
| | | | | | | getOpenFileSlice gets passed the map size, so it makes no sense to say that the size is volatile. The code will not even compute the size. llvm-svn: 219226
* Be consistent about using "const Twine &" for filenames.Rafael Espindola2014-10-071-22/+27
| | | | | | | | | | | | | | | On this file we had a mix of * Twine * const char * * StringRef The two that make sense are * const Twine & (caller convenience) * consc char * (that is what will eventually be passed to open. Given that sys::fs::openFileForRead takes a "const Twine &", I picked that. llvm-svn: 219224
* Attempt to calm down buildbotsDavid Majnemer2014-10-071-0/+3
| | | | llvm-svn: 219190
* Support: Don't call close again if we get EINTRDavid Majnemer2014-10-073-11/+34
| | | | | | | | | | | | | | | | | | | | | | | | | Most Unix-like operating systems guarantee that the file descriptor is closed after a call to close(2), even if close comes back with EINTR. For these systems, calling close _again_ will either do nothing or close some other file descriptor open(2)'d by another thread. (Linux) However, some operating systems do not have this behavior. They require at least another call to close(2) before guaranteeing that the descriptor is closed. (HP-UX) And some operating systems have an unpredictable blend of the two behaviors! (xnu) Avoid this disaster by blocking all signals before we call close(2). This ensures that a signal will not be delivered to the thread and close(2) will not give us back EINTR. We restore the signal mask once the operation is done. N.B. This isn't a problem on Windows, it doesn't have a notion of EINTR because signals always get delivered to dedicated signal handling threads. llvm-svn: 219189
* Support: Add a utility to remap std{in,out,err} to /dev/null if closedDavid Majnemer2014-10-062-0/+63
| | | | | | | | | | | | | | | It's possible to start a program with one (or all) of the standard file descriptors closed. Subsequent open system calls will give the program a low-numbered file descriptor. This is problematic because we may believe we are writing to standard out instead of a file. Introduce Process::FixupStandardFileDescriptors, a helper function to remap standard file descriptors to /dev/null if they were closed before the program started. llvm-svn: 219170
* Make the MD5 result name consistent between functions, header and source.Yaron Keren2014-10-061-19/+19
| | | | llvm-svn: 219121
* Converting the ErrorHandlerMutex to a ManagedStatic to avoid the static ↵Chris Bieneman2014-10-031-4/+5
| | | | | | constructor and destructor. llvm-svn: 219028
* Move the complex address expression out of DIVariable and into an extraAdrian Prantl2014-10-011-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | argument of the llvm.dbg.declare/llvm.dbg.value intrinsics. Previously, DIVariable was a variable-length field that has an optional reference to a Metadata array consisting of a variable number of complex address expressions. In the case of OpPiece expressions this is wasting a lot of storage in IR, because when an aggregate type is, e.g., SROA'd into all of its n individual members, the IR will contain n copies of the DIVariable, all alike, only differing in the complex address reference at the end. By making the complex address into an extra argument of the dbg.value/dbg.declare intrinsics, all of the pieces can reference the same variable and the complex address expressions can be uniqued across the CU, too. Down the road, this will allow us to move other flags, such as "indirection" out of the DIVariable, too. The new intrinsics look like this: declare void @llvm.dbg.declare(metadata %storage, metadata %var, metadata %expr) declare void @llvm.dbg.value(metadata %storage, i64 %offset, metadata %var, metadata %expr) This patch adds a new LLVM-local tag to DIExpressions, so we can detect and pretty-print DIExpression metadata nodes. What this patch doesn't do: This patch does not touch the "Indirect" field in DIVariable; but moving that into the expression would be a natural next step. http://reviews.llvm.org/D4919 rdar://problem/17994491 Thanks to dblaikie and dexonsmith for reviewing this patch! Note: I accidentally committed a bogus older version of this patch previously. llvm-svn: 218787
* Revert r218778 while investigating buldbot breakage.Adrian Prantl2014-10-011-2/+0
| | | | | | "Move the complex address expression out of DIVariable and into an extra" llvm-svn: 218782
* Move the complex address expression out of DIVariable and into an extraAdrian Prantl2014-10-011-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | argument of the llvm.dbg.declare/llvm.dbg.value intrinsics. Previously, DIVariable was a variable-length field that has an optional reference to a Metadata array consisting of a variable number of complex address expressions. In the case of OpPiece expressions this is wasting a lot of storage in IR, because when an aggregate type is, e.g., SROA'd into all of its n individual members, the IR will contain n copies of the DIVariable, all alike, only differing in the complex address reference at the end. By making the complex address into an extra argument of the dbg.value/dbg.declare intrinsics, all of the pieces can reference the same variable and the complex address expressions can be uniqued across the CU, too. Down the road, this will allow us to move other flags, such as "indirection" out of the DIVariable, too. The new intrinsics look like this: declare void @llvm.dbg.declare(metadata %storage, metadata %var, metadata %expr) declare void @llvm.dbg.value(metadata %storage, i64 %offset, metadata %var, metadata %expr) This patch adds a new LLVM-local tag to DIExpressions, so we can detect and pretty-print DIExpression metadata nodes. What this patch doesn't do: This patch does not touch the "Indirect" field in DIVariable; but moving that into the expression would be a natural next step. http://reviews.llvm.org/D4919 rdar://problem/17994491 Thanks to dblaikie and dexonsmith for reviewing this patch! llvm-svn: 218778
* Fix llvm::huge_valf multiple initializations with Visual C++.Yaron Keren2014-09-272-0/+33
| | | | | | | | | | | | | | | | | | | llvm::huge_valf is defined in a header file, so it is initialized multiple times in every compiled unit upon program startup. With non-VC compilers huge_valf is set to a HUGE_VALF which the compiler can probably optimize out. With VC numeric_limits<float>::infinity() does not return a number but a runtime structure member which therotically may change between calls so the compiler does not optimize out the initialization and it happens many times. It can be easily seen by placing a breakpoint on the initialization line. This patch moves llvm::huge_valf initialization to a source file instead of the header. llvm-svn: 218567
* clang-format of ChangeStdinToBinary & ChangeStdoutToBinary.Yaron Keren2014-09-261-4/+4
| | | | llvm-svn: 218547
* Support: Remove undefined behavior from &raw_ostream::operator<<David Majnemer2014-09-261-1/+1
| | | | | | | Don't negate signed integer types in &raw_ostream::operator<<(const FormattedNumber &FN). llvm-svn: 218496
* [Support] Add type-safe alternative to llvm::format()Nick Kledzik2014-09-251-0/+57
| | | | | | | | | | | | | | | | | | | | | llvm::format() is somewhat unsafe. The compiler does not check that integer parameter size matches the %x or %d size and it does not complain when a StringRef is passed for a %s. And correctly using a StringRef with format() is ugly because you have to convert it to a std::string then call c_str(). The cases where llvm::format() is useful is controlling how numbers and strings are printed, especially when you want fixed width output. This patch adds some new formatting functions to raw_streams to format numbers and StringRefs in a type safe manner. Some examples: OS << format_hex(255, 6) => "0x00ff" OS << format_hex(255, 4) => "0xff" OS << format_decimal(0, 5) => " 0" OS << format_decimal(255, 5) => " 255" OS << right_justify(Str, 5) => " foo" OS << left_justify(Str, 5) => "foo " llvm-svn: 218463
* Adding #ifdef around TermColorMutex based on feedback from Craig Topper.Chris Bieneman2014-09-241-0/+2
| | | | llvm-svn: 218401
* Windows/Host.inc: Reformat the header to fit 80-col.NAKAMURA Takumi2014-09-241-1/+1
| | | | llvm-svn: 218374
* Unix/Host.inc: Remove <cstdlib>. It has been unused for a long time.NAKAMURA Takumi2014-09-241-1/+0
| | | | llvm-svn: 218373
* Unix/Host.inc: Wrap a comment line in 80-col.NAKAMURA Takumi2014-09-241-1/+2
| | | | llvm-svn: 218371
* Unix/Host.inc: Remove leading whitespace. It had been here since r56942!NAKAMURA Takumi2014-09-241-1/+1
| | | | llvm-svn: 218370
* Windows/DynamicLibrary.inc: Remove 'extern "C"' in ELM_Callback.NAKAMURA Takumi2014-09-231-1/+1
| | | | | | 'extern "C" static' is not accepted by g++-4.7. Rather to tweak, I just removed 'extern "C"', since it doesn't affect the ABI. llvm-svn: 218290
* Converting terminalHasColors mutex to a global ManagedStatic to avoid the ↵Chris Bieneman2014-09-221-2/+4
| | | | | | static destructor. llvm-svn: 218283
* In this callback ModuleName includes the file path.Yaron Keren2014-09-221-26/+5
| | | | | | | | | | | | | | | Comparing ModuleName to the file names listed will always fail. I wonder how this code ever worked and what its purpose was. Why exclude the msvc runtime DLLs but not exclude all Windows system DLLs? Anyhow, it does not function as intended. clang-formatted as well. llvm-svn: 218276
* Add hsail and amdil64 to TripleMatt Arsenault2014-09-191-5/+29
| | | | llvm-svn: 218142
* LineIterator: Provide a variant that keeps blank linesJustin Bogner2014-09-171-6/+17
| | | | | | | | It isn't always useful to skip blank lines, as evidenced by the somewhat awkward use of line_iterator in llvm-cov. This adds a knob to control whether or not to skip blanks. llvm-svn: 217960
* Fix identify_magic() with mach-o stub dylibs.Nick Kledzik2014-09-171-1/+1
| | | | | | The wrong value was returned and the unittest did not cover the stub dylib case. llvm-svn: 217933
* Fix memory leak in error paths in YAMLTraits by using unique_ptrDavid Blaikie2014-09-151-31/+21
| | | | | | | | | There's some other cleanup that could happen here, but this is at least the mechanical transformation to unique_ptr. Derived from a patch by Anton Yartsev. llvm-svn: 217803
* Add support for le64.JF Bastien2014-09-121-2/+9
| | | | | | | | | | | | | | | | | Summary: le64 is a generic little-endian 64-bit processor, mimicking le32. Depends on D5318. Test Plan: make check-all Reviewers: dschuff Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D5319 llvm-svn: 217697
* Add CMake check for libatomic.Evgeniy Stepanov2014-09-121-0/+3
| | | | llvm-svn: 217666
* Support: Use llvm::COFF::BigObjMagicRui Ueyama2014-09-111-7/+15
| | | | | | | Use llvm::COFF::BigObjMagic insetad of the string literal. Also checks the version number. llvm-svn: 217633
* Support: improve identify_magic to recognize COFF bigobjRui Ueyama2014-09-111-3/+9
| | | | | | | identify_magic recognized a COFF bigobj as an import library file. This patch fixes that. llvm-svn: 217627
* Misc cleanups to the FileSytem api.Rafael Espindola2014-09-114-66/+43
| | | | | | | | | | | | | | | | The main difference is the removal of std::error_code exists(const Twine &path, bool &result); It was an horribly redundant interface since a file not existing is also a valid error_code. Now we have an access function that returns just an error_code. This is the only function that has to be implemented for Unix and Windows. The functions can_write, exists and can_execute an now just wrappers. One still has to be very careful using these function to avoid introducing race conditions (Time of check to time of use). llvm-svn: 217625
* typoSanjay Patel2014-09-111-1/+1
| | | | llvm-svn: 217597
* Use armv6k default for FreeBSD/ARMEd Maste2014-09-091-0/+1
| | | | | | Patch by Andrew Turner. llvm-svn: 217454
* Check whether the iterator p == the end iterator before trying to ↵Nick Lewycky2014-09-061-3/+3
| | | | | | dereference it. This is a speculative fix for a failure found on the valgrind buildbot triggered by a clang test. llvm-svn: 217295
* Fix right shift by 64 bits detected on CXX/lex/lex.literal/lex.ext/p4.cppAlexey Samsonov2014-09-061-1/+3
| | | | | | | | test case on UBSan bootstrap bot. This fixes the last failure of "check-clang" in UBSan bootstrap bot. llvm-svn: 217294
* Reapply "[dwarfdump] Add missing DW_LANG_Mips_Assembler case to ↵Frederic Riss2014-09-051-0/+1
| | | | | | | | LanguageString()" This commit was reverted in r217183, but is OK to go in again now that its dependency is commited (as of r217186). llvm-svn: 217231
* Removed white-spaceMatthew Gardiner2014-09-051-2/+0
| | | | llvm-svn: 217230
* Adding kalimba variants as Triple sub-architectures.Matthew Gardiner2014-09-051-1/+6
| | | | | | | | Reviewed in: http://reviews.llvm.org/D5115 llvm-svn: 217229
* [ dwarfdump ] Add symbolic dump of known DWARF attribute values.Frederic Riss2014-09-041-0/+31
| | | | | | | | | | Reviewed By: dblaikie Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D5187 llvm-svn: 217186
* Revert "[dwarfdump] Add missing DW_LANG_Mips_Assembler case to LanguageString()"Frederic Riss2014-09-041-1/+0
| | | | | | | | This reverts commit 93c7e6161e1adbd2c7ac81fa081823183035cb64. This commit got approved first, but was dependant on another one going in (The one pretty printing attribute values). I'll reapply when the other one is in. llvm-svn: 217183
* [dwarfdump] Add missing DW_LANG_Mips_Assembler case to LanguageString()Frederic Riss2014-09-041-0/+1
| | | | | | | | | | Reviewed By: dblaikie Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D5193 llvm-svn: 217182
* Add writeFileWithSystemEncoding to LibLLVMSuppor.Rafael Espindola2014-09-034-4/+83
| | | | | | | | | | | | | | | | | | | | This patch adds to LLVMSupport the capability of writing files with international characters encoded in the current system encoding. This is relevant for Windows, where we can either use UTF16 or the current code page (the legacy Windows international characters). On UNIX, the file is always saved in UTF8. This will be used in a patch for clang to thoroughly support response files creation when calling other tools, addressing PR15171. On Windows, to correctly support internationalization, we need the ability to write response files both in UTF16 or the current code page, depending on the tool we will call. GCC for mingw, for instance, requires files to be encoded in the current code page. MSVC tools requires files to be encoded in UTF16. Patch by Rafael Auler! llvm-svn: 217068
* Removing static initializer from Debug.cpp by converting to a ManagedStatic.Chris Bieneman2014-09-031-4/+5
| | | | | | | | This is part of our larger effort to remove static initializers from LLVM libraries. Reviewed by: chandlerc llvm-svn: 217053
* Cleaning up remaining static initializers in Signals.incChris Bieneman2014-09-021-24/+31
| | | | llvm-svn: 216996
* unique_ptrify the result of SpecialCaseList::createDavid Blaikie2014-09-021-7/+8
| | | | llvm-svn: 216925
* unique_ptrify FileOutputBuffer::FileOutputBufferDavid Blaikie2014-09-021-10/+7
| | | | llvm-svn: 216921
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