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* Misc cleanups to the FileSytem api.Rafael Espindola2014-09-111-33/+13
| | | | | | | | | | | | | | | | 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
* Add writeFileWithSystemEncoding to LibLLVMSuppor.Rafael Espindola2014-09-033-4/+65
| | | | | | | | | | | | | | | | | | | | 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
* Merge TempDir and system_temp_directory.Rafael Espindola2014-08-261-17/+45
| | | | | | | | | We had two functions for finding the temp or cache directory. Each had a different set of smarts about OS specific APIs. With this patch system_temp_directory becomes the only way to do it. llvm-svn: 216460
* Refactor argument serialization logic when executing process. NFC.Rafael Espindola2014-08-251-13/+17
| | | | | | | | | | | | This patch refactors the argument serialization logic used in the Execute function, used to launch new Windows processes. There is a critical step that joins char** arguments into a single string, building the command line used to launch the new process, and the readability of this code is improved if this part is refactored in its own helper function. Patch by Rafael Auler! llvm-svn: 216411
* Remove dead code. Fixes pr20544.Rafael Espindola2014-08-081-5/+0
| | | | llvm-svn: 215243
* Windows: Don't wildcard expand /? or -?Hans Wennborg2014-07-241-0/+5
| | | | | | | Even if there's a file called c:\a, we want /? to be preserved as an option, not expanded to a filename. llvm-svn: 213894
* Perform wildcard expansion in Process::GetArgumentVector on Windows (PR17098)Hans Wennborg2014-07-161-19/+71
| | | | | | | | | | | | | | On Windows, wildcard expansion isn't performed by the shell, but left to the program itself. The common way to do this is to link with setargv.obj, which performs the expansion on argc/argv before main is entered. However, we don't use argv in Clang on Windows, but instead call GetCommandLineW so we can handle unicode arguments. This means we have to do wildcard expansion ourselves. A test case will be added on the Clang side. Differential Revision: http://reviews.llvm.org/D4529 llvm-svn: 213114
* Fix a -Wunused-local-typedefs warningAlp Toker2014-07-141-1/+1
| | | | llvm-svn: 213002
* Finishing touch for the std::error_code transition.Rafael Espindola2014-06-131-7/+7
| | | | | | | | | | | While std::error_code itself seems to work OK in all platforms, there are few annoying differences with regards to the std::errc enumeration. This patch adds a simple llvm enumeration, which will hopefully avoid build breakages in other platforms and surprises as we get more uses of std::error_code. llvm-svn: 210920
* Fix build on windows.Rafael Espindola2014-06-131-84/+89
| | | | llvm-svn: 210873
* Remove 'using std::errro_code' from lib.Rafael Espindola2014-06-133-28/+25
| | | | llvm-svn: 210871
* Try to fix the windows build.Rafael Espindola2014-06-121-1/+1
| | | | llvm-svn: 210837
* Don't use 'using std::error_code' in include/llvm.Rafael Espindola2014-06-123-1/+3
| | | | | | This should make sure that most new uses use the std prefix. llvm-svn: 210835
* Trying to fix the windows build.Rafael Espindola2014-06-121-4/+3
| | | | llvm-svn: 210805
* Remove system_error.h.Rafael Espindola2014-06-121-1/+1
| | | | | | | This is a minimal change to remove the header. I will remove the occurrences of "using std::error_code" in a followup patch. llvm-svn: 210803
* Replace llvm::error_code with std::error_code.Rafael Espindola2014-06-121-4/+4
| | | | llvm-svn: 210783
* Don't import make_error_code into the llvm namespace.Rafael Espindola2014-06-121-4/+4
| | | | llvm-svn: 210772
* Prefix generic_category with std::.Rafael Espindola2014-06-121-2/+2
| | | | | | Sorry I missed these before. llvm-svn: 210740
* Don't put generic_category in the llvm namespace.Rafael Espindola2014-06-121-2/+2
| | | | llvm-svn: 210737
* Used mapWindowsError. I missed these in the initial transition.Rafael Espindola2014-06-121-3/+4
| | | | llvm-svn: 210729
* Implement get_magic with generic tools and inline it.Rafael Espindola2014-06-111-42/+0
| | | | llvm-svn: 210716
* Use std::error_code instead of llvm::error_code.Rafael Espindola2014-06-113-150/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The idea of this patch is to turn llvm/Support/system_error.h into a transitional header that just brings in the erorr_code api to the llvm namespace. I will remove it shortly afterwards. The cases where the general idea needed some tweaking: * std::errc is a namespace in msvc, so we cannot use "using std::errc". I could add an #ifdef, but there were not that many uses, so I just added std:: to them in this patch. * Template specialization had to be moved to the std namespace in this patch set already. * The msvc implementation of default_error_condition doesn't seem to provide the same transformations as we need. Not too surprising since the standard doesn't actually say what "equivalent" means. I fixed the problem by keeping our old mapping and using it at error_code construction time. Despite these shortcomings I think this is still a good thing. Some reasons: * The different implementations of system_error might improve over time. * It removes 925 lines of code from llvm already. * It removes 6313 bytes from the text segment of the clang binary when it is built with gcc and 2816 bytes when building with clang and libstdc++. llvm-svn: 210687
* Remove windows_error.Rafael Espindola2014-06-112-30/+40
| | | | | | | | | | MSVC doesn't seem to provide any is_error_code_enum enumeration for the windows errors. Fortunately very few places in llvm have to handle raw windows errors, so we can just construct the corresponding error_code directly. llvm-svn: 210631
* Process::GetRandomNumber(): fix insecure RNGAlp Toker2014-06-031-2/+3
| | | | | | | This could have generated non-random output under error conditions in release builds. llvm-svn: 210065
* Fix windows build.Rafael Espindola2014-05-312-3/+2
| | | | llvm-svn: 209961
* Turn errc and windows_error into enum classes.Rafael Espindola2014-05-311-2/+2
| | | | llvm-svn: 209957
* Use error_code() instead of error_code::succes()Rafael Espindola2014-05-313-33/+33
| | | | | | | There is no std::error_code::success, so this removes much of the noise in transitioning to std::error_code. llvm-svn: 209952
* delete dead code.Rafael Espindola2014-05-311-11/+0
| | | | llvm-svn: 209938
* Clean up language and grammar.Eric Christopher2014-05-201-1/+1
| | | | | | | Based on a patch by jfcaron3@gmail.com! PR19806 llvm-svn: 209216
* MemoryBuffer: Use GetNativeSystemInfo()Alp Toker2014-05-191-8/+6
| | | | | | | Removes old 4096 byte workaround. This functionality has been available since Windows XP. llvm-svn: 209137
* Use raw_ostream and Format.h on Windows so that we don't have to rollChandler Carruth2014-04-281-5/+10
| | | | | | our own portability system to cope without snprintf. llvm-svn: 207389
* Update the Windows TimeValue formatting to match the new formatting onChandler Carruth2014-04-281-9/+5
| | | | | | Unix-like OSes. llvm-svn: 207388
* Windows: canonicalise the default windows tripleSaleem Abdulrasool2014-03-291-1/+1
| | | | | | | Canonicalise the default triple that is used on Windows. This should hopefully fix the MSVC buildbots. llvm-svn: 205070
* support: add a utility function to normalise path separatorsSaleem Abdulrasool2014-03-111-0/+5
| | | | | | | | Add a utility function to convert the Windows path separator to Unix style path separators. This is used by a subsequent change in clang to enable the use of Windows SDK headers on Linux. llvm-svn: 203611
* Cleanup the interface for creating soft or hard links.Rafael Espindola2014-03-111-1/+2
| | | | | | | | | | | | Before this patch the unix code for creating hardlinks was unused. The code for creating symbolic links was implemented in lib/Support/LockFileManager.cpp and the code for creating hard links in lib/Support/*/Path.inc. The only use we have for these is in LockFileManager.cpp and it can use both soft and hard links. Just have a create_link function that creates one or the other depending on the platform. llvm-svn: 203596
* Revert create_symbolic_link and both depending changesReid Kleckner2014-03-061-19/+0
| | | | | | | | | | This reverts commits r203136, r203137, and r203138. This code doesn't build on Windows. Even on Vista+, Windows requires elevated privileges to create a symlink. Therefore we can't use symlinks in the compiler. We'll have to find another approach. llvm-svn: 203143
* [Support/FileSystem] Introduce llvm::sys::fs::create_symbolic_link().Argyrios Kyrtzidis2014-03-061-0/+19
| | | | llvm-svn: 203136
* Replace OwningPtr<T> with std::unique_ptr<T>.Ahmed Charles2014-03-061-2/+1
| | | | | | | | | | This compiles with no changes to clang/lld/lldb with MSVC and includes overloads to various functions which are used by those projects and llvm which have OwningPtr's as parameters. This should allow out of tree projects some time to move. There are also no changes to libs/Target, which should help out of tree targets have time to move, if necessary. llvm-svn: 203083
* Remove unnecessary variables.Ahmed Charles2014-03-051-2/+2
| | | | | | Found self-hosting clang-cl on windows. :) llvm-svn: 202935
* [C++11] Remove the R-value reference #if usage from the ADT and SupportChandler Carruth2014-03-011-2/+0
| | | | | | libraries. It is now always 1 in LLVM builds. llvm-svn: 202580
* Replace the F_Binary flag with a F_Text one.Rafael Espindola2014-02-241-1/+1
| | | | | | | | | After this I will set the default back to F_None. The advantage is that before this patch forgetting to set F_Binary would corrupt a file on windows. Forgetting to set F_Text produces one that cannot be read in notepad, which is a better failure mode :-) llvm-svn: 202052
* Share a createUniqueEntity implementation between unix and windows.Rafael Espindola2014-02-241-130/+13
| | | | | | | The only extra bit of functionality that had to be exposed for this be be implemented in Path.cpp is opening a file in rw mode. llvm-svn: 202005
* Delete dead code.Rafael Espindola2014-02-241-7/+0
| | | | llvm-svn: 202001
* Use static instead of an anonymous namespace.Rafael Espindola2014-02-231-21/+19
| | | | llvm-svn: 201983
* Simplify remove, create_directory and create_directories.Rafael Espindola2014-02-231-32/+20
| | | | | | | | | | | | | | | Before this patch they would take an boolean argument to say if the path already existed. This was redundant with the returned error_code which is able to represent that. This allowed for callers to incorrectly check only the existed flag instead of first checking the error code. Instead, pass in a boolean flag to say if the previous (non-)existence should be an error or not. Callers of the of the old simple versions are not affected. They still ignore the previous (non-)existence as they did before. llvm-svn: 201979
* Use simpler form of llvm::sys::fs::remove.Rafael Espindola2014-02-231-2/+1
| | | | llvm-svn: 201975
* [Support] Correctly handle zero length inputs to UTF conversion functions on ↵Michael J. Spencer2014-02-201-32/+30
| | | | | | Windows. llvm-svn: 201811
* Remove dead code.Rafael Espindola2014-02-131-32/+0
| | | | llvm-svn: 201327
* Rename Windows.h to WindowsSupport.h to avoid ambiguityReid Kleckner2014-02-1212-13/+16
| | | | llvm-svn: 201258
* Windows/Path.inc: Move <shlobj.h> after "Windows.h" for some API available.NAKAMURA Takumi2014-02-121-2/+3
| | | | | | | | | | | | | | | I found that swapping the order of some header files helped fix a build issue that we're seeing on mingw32. Without the swap, windows.h was being included before _WIN32_WINNT was being defined and the CreateHardLinkW function was #ifdef'd out. It looks like the header is mainly used to get the SHGetFolderPathW function, so I don't think that there'll be much fallout from the switch. Suggested by Alex Crichton. Thanks! llvm-svn: 201230
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