Original commit message:
Support/FileSystem: Implement canonicalize.

llvm-svn: 146378

llvm-svn: 146364

llvm-svn: 146363

directory_iterator preserve InputIterator semantics on copy.

llvm-svn: 146200

llvm-svn: 143502

llvm-svn: 143501

llvm-svn: 143452

llvm-svn: 140433

This was only needed to locate llvm-gcc's installation directory when clang
falls back to run llvm-gcc for i386 kexts.  As of clang svn r140187, we're
now just searching paths with several different Darwin versions on either
side of the current version, so this is no longer needed.

llvm-svn: 140188

Patch by Joakim Johansson!

llvm-svn: 139743

llvm-svn: 137204

llvm-svn: 137137

When this variable is set, "uname -r" will return its value instead of the
real OS version.  Make this affect LLVM's triple for consistency.
<rdar://problem/9919167>

llvm-svn: 137111

llvm-svn: 136477

screwy things by setting PWD != getcwd(). For example, some developers I know
will use this to control the value in gcc's DW_AT_comp_dir value in debug
output. With this patch, that trick will now work on clang too.

The only other effect of this change is that the static analysis will now
respect $PWD when reporting the directory of the files in its HTML output. I
think that's fine.

llvm-svn: 136459

If true and 'model' parameter is not an absolute path, a temp directory will be prepended.
Make it true by default to match current behaviour.

llvm-svn: 136310

used for open is 0666.  Therefore, add the necessary permission bits for
consistency.
rdar://8621462

llvm-svn: 134430

info in the error message. Per Dan's request.

llvm-svn: 131780

getHostTriple. This fixes a 32 bit clang running on a 64 bit ubuntu.

llvm-svn: 131463

This change allows bugpoint to pinpoint the "opt" pass and bitcode
segment responsible for a crash caused by miscompilation. At least it
works well for me now, without having to create any custom execution
wrappers.

llvm-svn: 131186

llvm-svn: 130510

llvm-svn: 129852

Luis Felipe Strano Moraes!

llvm-svn: 129558

llvm-svn: 128218

llvm-svn: 128199

- glibc falls back to fork+exec if a file actions object is present.
- On BSDs this saves a malloc.

llvm-svn: 127969

llvm-svn: 127891

llvm-svn: 127417

llvm-svn: 127413

support for creating buffers that cover only a part of a file.

llvm-svn: 127409

llvm-svn: 125943

I have another way to achieve the same goal.

llvm-svn: 125239

llvm-svn: 125236

name of a path, after resolving symbolic links and eliminating excess
path elements such as "foo/../" and "./".

This routine still needs a Windows implementation, but I don't have a
Windows machine available. Help? Please?

llvm-svn: 125228

llvm-svn: 123604

llvm-svn: 123544

llvm-svn: 123209

llvm-svn: 123151

llvm-svn: 122879

llvm-svn: 122580