Use 'waitpid' instead of 'wait'.  Basing Program::Wait() on 'wait()' prevents it being correct within a multithreaded context.

This address: PR 5277 (Program::Wait is unsafe to call from multiple threads).

Note: If waitpid() turns out to be non-portable, we can add more autoconf magic, or look into
another solution.

llvm-svn: 84903

llvm-svn: 83823

ExecuteAndWait.

llvm-svn: 82522

GetProcessId was introduced only in XP. As a bonus, this change makes Program
objects copyable, since Program is now basically a PID.

llvm-svn: 81826

working. To support this, add an is_displayed() function to raw_ostream,
and generalize Process::StandardOutIsDisplayed and friends in order to
support it.

Also, call RemoveFileOnSignal before creating a file instead of after, so
that the file isn't left behind if the program is interrupted between when
the file is created and RemoveFileOnSignal is called.

While here, add a -S to llvm-extract and port it to IRReader so that it
supports assembly input.

llvm-svn: 81568

clang's testsuite.

llvm-svn: 81333

Thanks to Duncan Sands for spotting this.

llvm-svn: 81328

llvm-svn: 81252

llvm-svn: 81249

llvm-svn: 81247

llvm-svn: 81246

equivalent to SIG_IGN.

llvm-svn: 81144

about by icc (#593, partial).  Patch by Erick Tryzelaar.

llvm-svn: 81115

doesn't warn about unreachable instructions.  Patch
by Erick Tryzelaar (#111).

llvm-svn: 81110

reliable.

llvm-svn: 80863

llvm-svn: 79873

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.

llvm-svn: 79869

we can find a way to cache the answer that isn't racy.

llvm-svn: 79472

llvm-svn: 79254

llvm-svn: 78363

llvm-svn: 78239

llvm-svn: 78215

fork call. This eliminates a need for <iostream>. Also remove
needless fsync calls.

llvm-svn: 78131

Add a comment explaining why.

llvm-svn: 78128

and 126 if it is not executable.

llvm-svn: 78120

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).

llvm-svn: 78098

llvm-svn: 77953

llvm-svn: 77405

slashes, just go with it, regardless of whether it looks like it will
be executable. This follows the behavior of sh(1) more closely.

llvm-svn: 77396

llvm-svn: 77392

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!

llvm-svn: 77379

bots like the BumpPtrAllocator changes.

llvm-svn: 76902

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