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* remove the last uses of Config/alloca.hChris Lattner2009-08-231-3/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79873 91177308-0d34-0410-b5e6-96231b3b80d8
* Prune #includes from llvm/Linker.h and llvm/System/Path.h,Chris Lattner2009-08-233-10/+10
| | | | | | | | | | | | | | | | | | | | forcing them down into various .cpp files. This change also: 1. Renames TimeValue::toString() and Path::toString() to ::str() for similarity with the STL. 2. Removes all stream insertion support for sys::Path, forcing clients to call .str(). 3. Removes a use of Config/alloca.h from bugpoint, using smallvector instead. 4. Weans llvm-db off <iostream> sys::Path really needs to be gutted, but I don't have the desire to do it at this point. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79869 91177308-0d34-0410-b5e6-96231b3b80d8
* Get rid of a helgrind warning. If this is _actually_ a performance problem,Owen Anderson2009-08-191-3/+3
| | | | | | | we can find a way to cache the answer that isn't racy. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79472 91177308-0d34-0410-b5e6-96231b3b80d8
* Add locking around signal handler registration.Owen Anderson2009-08-171-0/+14
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79254 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a bunch of namespace pollution.Dan Gohman2009-08-071-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78363 91177308-0d34-0410-b5e6-96231b3b80d8
* Minor code simplification.Dan Gohman2009-08-051-4/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78239 91177308-0d34-0410-b5e6-96231b3b80d8
* Update a comment to reflect the current code.Dan Gohman2009-08-051-1/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78215 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove needless uses of std::flush in the parent process after aDan Gohman2009-08-051-7/+0
| | | | | | | | fork call. This eliminates a need for <iostream>. Also remove needless fsync calls. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78131 91177308-0d34-0410-b5e6-96231b3b80d8
* Use _exit rather than exit in the child process after a failed exec.Dan Gohman2009-08-051-3/+7
| | | | | | | Add a comment explaining why. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78128 91177308-0d34-0410-b5e6-96231b3b80d8
* Follow Unix behavior and return 127 if the command is not found,Dan Gohman2009-08-041-1/+1
| | | | | | | and 126 if it is not executable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78120 91177308-0d34-0410-b5e6-96231b3b80d8
* When exec() fails, return 127 instead of errno; the parent process has no way toDaniel Dunbar2009-08-041-3/+3
| | | | | | | | distinguish that the result is errno, so it can't use it to provide more information about the error (it also exposes the numeric value of errno). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78098 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a race condition in getting the process exit code on Win32.Daniel Dunbar2009-08-031-0/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77953 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove another F_OK.Dan Gohman2009-07-291-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77405 91177308-0d34-0410-b5e6-96231b3b80d8
* On "Unix", if Program::FindProgramByName is given a name containingDan Gohman2009-07-281-1/+1
| | | | | | | | slashes, just go with it, regardless of whether it looks like it will be executable. This follows the behavior of sh(1) more closely. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77396 91177308-0d34-0410-b5e6-96231b3b80d8
* It isn't necessary to use F_OK when using R_OK or similar.Dan Gohman2009-07-281-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77392 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a fixme; don't take binaries from the working directory.Benjamin Kramer2009-07-281-3/+3
| | | | | | | | This fixes clang on non-darwin platforms if a file called 'ld' or 'as' is in the working directory. Based on patch by Pawel Worach! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77379 91177308-0d34-0410-b5e6-96231b3b80d8
* Re-committing r76828 with the JIT memory manager changes now that the buildReid Kleckner2009-07-231-3/+4
| | | | | | | bots like the BumpPtrAllocator changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76902 91177308-0d34-0410-b5e6-96231b3b80d8
* Reverting r76825 and r76828, since they caused clang runtime errors and some ↵Reid Kleckner2009-07-231-4/+3
| | | | | | build failure involving memset. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76838 91177308-0d34-0410-b5e6-96231b3b80d8
* Make the JIT code emitter properly retry and ask for more memory when it runsReid Kleckner2009-07-231-3/+4
| | | | | | | | | | | | | | out of memory, and also make the default memory manager allocate more memory when it runs out. Also, switch function stubs and global data over to using the BumpPtrAllocator. This makes it so the JIT no longer mmaps (or the equivalent on Windows) 16 MB of memory, and instead allocates in 512K slabs. I suspect this size could go lower, especially on embedded platforms, now that more slabs can be allocated. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76828 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove duplication in Program::Execute{And,No}Wait.Mikhail Glushenkov2009-07-181-87/+29
| | | | | | | Implemented by moving the code out of static functions into methods of Program class. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76340 91177308-0d34-0410-b5e6-96231b3b80d8
* Trailing whitespace.Mikhail Glushenkov2009-07-171-15/+15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76229 91177308-0d34-0410-b5e6-96231b3b80d8
* Improve sys::Path::makeAbsolute on Win32.Daniel Dunbar2009-07-121-0/+13
| | | | | | | | | - Patch by Viktor Kutuzov! - Minor tweak by me to add llvm_unreachable calls on FIXMEd error paths. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75424 91177308-0d34-0410-b5e6-96231b3b80d8
* "UNIX paths can contain non-ASCII characters, so Path::isValid() should not ↵Chris Lattner2009-07-121-9/+1
| | | | | | | | | reject paths with such characters in them. The attached patch removes the check from Path::isValid()." patch by Benjamin Kramer! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75421 91177308-0d34-0410-b5e6-96231b3b80d8
* Add an ExecuteNoWait interface to support asynchronous process spawning.David Greene2009-07-081-0/+72
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75055 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a portable strerror*() wrapper, llvm::sys::StrError(). This includes theJeffrey Yasskin2009-07-011-26/+2
| | | | | | | | | Windows variant, strerror_s, but I couldn't test that. I'll update configure and config.h.in in a subsequent patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74621 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix compilation without pthreads.Owen Anderson2009-06-261-3/+3
| | | | | | | Patch by Xerxes Ranby. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74283 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a class for supporting platform independent thread-local storage.Owen Anderson2009-06-251-0/+25
| | | | | | | Windows people, please double-check/patch this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74209 91177308-0d34-0410-b5e6-96231b3b80d8
* Give RWMutex the SmartRWMutex treatment too.Owen Anderson2009-06-181-6/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73710 91177308-0d34-0410-b5e6-96231b3b80d8
* Insert a SmartMutex templated class into the class hierarchy, which takes a ↵Owen Anderson2009-06-181-5/+5
| | | | | | | | | template parameter specifying whether this mutex should become a no-op when not running in multithreaded mode. Make sys::Mutex a typedef of SmartMutex<false>, to preserve source compatibility. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73709 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a portable wrapper for reader-writer locks.Owen Anderson2009-06-161-0/+43
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73545 91177308-0d34-0410-b5e6-96231b3b80d8
* glibc has two versions of strerror_r, a standards compliant one and a GNUDan Gohman2009-06-151-1/+8
| | | | | | | | | | | | | | | specific one. The GNU one is chosen when _GNU_SOURCE is defined. g++ always defines _GNU_SOURCE on linux platforms because glibc's headers won't compile in C++ mode without it. The GNU strerror_r doesn't always modify the buffer which causes empty error messages on linux. This patch changes MakeErrMsg to use the return value of strerror_r to get the string instead of assuming the buffer will be modified, on GLIBC. Patch by Benjamin Kramer! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73396 91177308-0d34-0410-b5e6-96231b3b80d8
* add a new static method to portably determine whether a patch isChris Lattner2009-06-151-0/+8
| | | | | | | absolute or not, based on a patch by Gregory Curfman! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73368 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for outputting ANSI colors to raw_fd_ostream.Torok Edwin2009-06-041-0/+59
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72854 91177308-0d34-0410-b5e6-96231b3b80d8
* Untabification.Bill Wendling2009-05-301-42/+41
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72604 91177308-0d34-0410-b5e6-96231b3b80d8
* Work around a page size issue on Cygwin.Jay Foad2009-05-231-1/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72332 91177308-0d34-0410-b5e6-96231b3b80d8
* termios.h contains the winsize structure we need to determine theDouglas Gregor2009-05-181-1/+4
| | | | | | | | width of a terminal. Don't try to get the width of a terminal if we don't have this header. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72018 91177308-0d34-0410-b5e6-96231b3b80d8
* Add terminal width detection to llvm::sys::Process. This is needed toDouglas Gregor2009-05-111-0/+37
| | | | | | | fix Clang PRs 4148 and 4183. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71448 91177308-0d34-0410-b5e6-96231b3b80d8
* Make Unix.h:MakeErrMsg separate the prefix and errno string, so we get:Daniel Dunbar2009-04-204-7/+10
| | | | | | | | | | | | | | | | | | clang: error: unable to make temporary file: /etc/cc: can't make unique filename: Permission denied instead of clang: error: unable to make temporary file: /etc/cc: can't make unique filenamePermission denied for example. Also, audited the uses of MakeErrMsg to make the prefix strings consistent (not end with newline/punctuation/space/": "). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69626 91177308-0d34-0410-b5e6-96231b3b80d8
* fix PR3965:SIGINT handler not restored after calling ParseAST(),Chris Lattner2009-04-121-1/+2
| | | | | | | patch by Alexei Svitkine! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68929 91177308-0d34-0410-b5e6-96231b3b80d8
* Add llvm::sys::getHostTriple and removeDaniel Dunbar2009-03-311-9/+25
| | | | | | | | | | | | llvm::sys::getOS{Name,Version}. Right now the implementation just derives from LLVM_HOSTTRIPLE (which is wrong, but it doesn't look like we have a define for the target triple). Ideally this routine would actually be able to compute the triple for targets we care about. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68118 91177308-0d34-0410-b5e6-96231b3b80d8
* fix a bug Alexei Svitkine pointed out.Chris Lattner2009-03-231-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67510 91177308-0d34-0410-b5e6-96231b3b80d8
* When we restore signal handlers, restore them back to what theyChris Lattner2009-03-231-8/+30
| | | | | | | | were when we came around, not to their default handler. This should fix PR3848 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67509 91177308-0d34-0410-b5e6-96231b3b80d8
* factorize signal registration, part of PR3848.Chris Lattner2009-03-231-10/+23
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67508 91177308-0d34-0410-b5e6-96231b3b80d8
* add some explicit llvm:: qualifiers to the unix side, fix problems on the ↵Chris Lattner2009-03-081-4/+5
| | | | | | windows side. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66386 91177308-0d34-0410-b5e6-96231b3b80d8
* When a crash signal is delivered do two things: remove all of ourChris Lattner2009-03-071-5/+14
| | | | | | | | | | | signal handlers to prevent reentrance on unrelated things (a sigabort where the handle bus errors) also, clear the signal mask so that the signal doesn't infinitely reissue. This fixes rdar://6654827 - Crash causes clang to loop git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66330 91177308-0d34-0410-b5e6-96231b3b80d8
* move some code to gracefully handle the case when a handler crashes.Chris Lattner2009-03-051-4/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66171 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a new 'AddSignalHandler' function to Signals.h that allowsChris Lattner2009-03-041-94/+68
| | | | | | | | | | | | | | arbitrary functions to be run when a crash happens. Delete RemoveDirectoryOnSignal as it is dead and has never had clients. Change PrintStackTraceOnErrorSignal to be implemented in terms of AddSignalHandler. I updated the Win32 versions of these APIs, but can't test them. If there are any problems, I'd be happy to fix them as well. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66072 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix main executable path name resolution on FreeBSD, patch by Chris Lattner2009-03-021-1/+60
| | | | | | | Ed Schouten! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65882 91177308-0d34-0410-b5e6-96231b3b80d8
* If an executable is run through a symlink, dladdr will return theChris Lattner2009-02-191-3/+8
| | | | | | | | | symlink. We really want the ultimate executable being run, not the symlink. This lets clang find its headers when invoked through a symlink. rdar://6602012 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65017 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix warning on gcc 4.3.Mikhail Glushenkov2009-02-151-1/+4
| | | | | | "system() declared with attribute warn_unused_result." git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64574 91177308-0d34-0410-b5e6-96231b3b80d8
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