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

llvm-svn: 79472

llvm-svn: 79254

llvm-svn: 78848

llvm-svn: 78823

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: 77913

project under the normal license, yay. :)

llvm-svn: 77823

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

project.

llvm-svn: 77213

llvm-svn: 77169

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

llvm-svn: 75831

llvm-svn: 75429

 - 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

llvm-svn: 75139

Add an ExecuteNoWait interface to support asynchronous process spawning.

llvm-svn: 75055

llvm-svn: 74982

llvm-svn: 74981

llvm-svn: 74977

This fixes PR4512 and eliminating static ctors is always good.  Losing
thread safety is unfortunate, but the code is just incredibly poorly
designed.

If someone is interested, the "right" solution is to split
DynamicLibrary.cpp into two separate pieces: a stateless piece in
libsystem, and a simple support file in libsupport that has the
"state" (e.g.  AddSymbol) in managed static objects.

Doing this would both fix memory leaks we already have, as well as make
the code thread safe again.  it would also make sense to move all the
unix specific code in System/DynamicLibrary.cpp into 
System/Unix/DynamicLibrary.inc.

llvm-svn: 74927

llvm-svn: 74926

llvm-svn: 74924

llvm-svn: 74854

Patch by Xerxes Ranby.

llvm-svn: 74846

llvm-svn: 74835