Reverting r76825 and r76828, since they caused clang runtime errors and some build failure involving memset.

llvm-svn: 76838

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.

llvm-svn: 76828

Implemented by moving the code out of static functions into methods of Program
class.

llvm-svn: 76340

llvm-svn: 76229

 - Patch by Viktor Kutuzov!

 - Minor tweak by me to add llvm_unreachable calls on FIXMEd error paths.

llvm-svn: 75424

"UNIX paths can contain non-ASCII characters, so Path::isValid() should not reject paths with such characters in them. The attached patch removes the check from Path::isValid()."

patch by Benjamin Kramer!

llvm-svn: 75421

Add an ExecuteNoWait interface to support asynchronous process spawning.

llvm-svn: 75055

Windows variant, strerror_s, but I couldn't test that.

I'll update configure and config.h.in in a subsequent patch.

llvm-svn: 74621

Patch by Xerxes Ranby.

llvm-svn: 74283

Windows people, please double-check/patch this.

llvm-svn: 74209

llvm-svn: 73710

Insert a SmartMutex templated class into the class hierarchy, which takes a 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.

llvm-svn: 73709

llvm-svn: 73545

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!

llvm-svn: 73396

absolute or not, based on a patch by Gregory Curfman!

llvm-svn: 73368

llvm-svn: 72854

llvm-svn: 72604

llvm-svn: 72332

width of a terminal. Don't try to get the width of a terminal if we
don't have this header.

llvm-svn: 72018

fix Clang PRs 4148 and 4183.

llvm-svn: 71448

  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/": ").

llvm-svn: 69626

patch by Alexei Svitkine!

llvm-svn: 68929

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.

llvm-svn: 68118

llvm-svn: 67510

were when we came around, not to their default handler.  This 
should fix PR3848

llvm-svn: 67509

llvm-svn: 67508

llvm-svn: 66386

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

llvm-svn: 66330

llvm-svn: 66171

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.

llvm-svn: 66072

Ed Schouten!

llvm-svn: 65882

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

llvm-svn: 65017

"system() declared with attribute warn_unused_result."

llvm-svn: 64574

llvm-svn: 64573

This fixes PR3535.

llvm-svn: 64224

llvm-svn: 64101

Also removes some trailing whitespace and fixes one 80-column violation.

llvm-svn: 64094

llvm-svn: 62776

since %p isn't formatted consistently, but obviously plain %x is wrong.
PRIxPTR with a cast to uintptr_t would work here, but that requires
inconvenient build-system changes. %lu works on all current and
foreseable future hosts.

llvm-svn: 60616

Wesley Peck, with a few fixes by me.

llvm-svn: 60605