Commit Graph

43 Commits

Author SHA1 Message Date
Jason Molenda 25a1525e7e Add the Disassembler unit test dir.
llvm-svn: 341696
2018-09-07 18:51:10 +00:00
Stella Stamenova 42ba76c9f6 [cmake, unittests] Fix the CMake file for the LLDB unittests to support multiple configurations
Summary: The current setup for the unit tests only works correctly when the generator does not support multiple configurations. When the generator supports multiple configurations, the inputs are not copied to the correct per-configuration directory. This change sets up the build to copy the inputs in each configuration directory.

Reviewers: labath, asmith, zturner

Reviewed By: labath

Subscribers: mgorny, llvm-commits

Differential Revision: https://reviews.llvm.org/D46642

llvm-svn: 331914
2018-05-09 19:58:51 +00:00
Shoaib Meenai d806af3499 [CMake] Use PRIVATE in target_link_libraries for executables
We currently use target_link_libraries without an explicit scope
specifier (INTERFACE, PRIVATE or PUBLIC) when linking executables.
Dependencies added in this way apply to both the target and its
dependencies, i.e. they become part of the executable's link interface
and are transitive.

Transitive dependencies generally don't make sense for executables,
since you wouldn't normally be linking against an executable. This also
causes issues for generating install export files when using
LLVM_DISTRIBUTION_COMPONENTS. For example, clang has a lot of LLVM
library dependencies, which are currently added as interface
dependencies. If clang is in the distribution components but the LLVM
libraries it depends on aren't (which is a perfectly legitimate use case
if the LLVM libraries are being built static and there are therefore no
run-time dependencies on them), CMake will complain about the LLVM
libraries not being in export set when attempting to generate the
install export file for clang. This is reasonable behavior on CMake's
part, and the right thing is for LLVM's build system to explicitly use
PRIVATE dependencies for executables.

Unfortunately, CMake doesn't allow you to mix and match the keyword and
non-keyword target_link_libraries signatures for a single target; i.e.,
if a single call to target_link_libraries for a particular target uses
one of the INTERFACE, PRIVATE, or PUBLIC keywords, all other calls must
also be updated to use those keywords. This means we must do this change
in a single shot. I also fully expect to have missed some instances; I
tested by enabling all the projects in the monorepo (except dragonegg),
and configuring both with and without shared libraries, on both Darwin
and Linux, but I'm planning to rely on the buildbots for other
configurations (since it should be pretty easy to fix those).

Even after this change, we still have a lot of target_link_libraries
calls that don't specify a scope keyword, mostly for shared libraries.
I'm thinking about addressing those in a follow-up, but that's a
separate change IMO.

Differential Revision: https://reviews.llvm.org/D40823

llvm-svn: 319840
2017-12-05 21:49:56 +00:00
Pavel Labath f753bfeeec Fix LLVM_LINK_LLVM_DYLIB build (pr35053)
Summary:
r316368 broke this build when it introduced a reference to a pthread
function to the Utility module. This caused cmake to generate an
incorrect link line (wrong order of libs) because it did not see the
dependency from Utility to the system libraries. Instead these libraries
were being manually added to each final target.

This changes moves the dependency management from the individual targets
to the lldbUtility module, which is consistent with how llvm does it.
The final targets will pick up these libraries as they will be a part of
the link interface of the module.

Technically, some of these dependencies could go into the host module,
as that's where most of the os-specific code is, but I did not try to
investigate which ones.

Reviewers: zturner, sylvestre.ledru

Subscribers: lldb-commits, mgorny

Differential Revision: https://reviews.llvm.org/D39246

llvm-svn: 316997
2017-10-31 13:23:19 +00:00
Tim Hammerquist a6db41675c cmake + xcode: prevent gtests from using includes from project root
Summary:
At present, several gtests in the lldb open source codebase are using
#include statements rooted at $(SOURCE_ROOT)/${LLDB_PROJECT_ROOT}.

This patch cleans up this directory/include structure for both CMake and
Xcode build systems.

rdar://problem/33835795

Reviewers: zturner, jingham, beanz

Reviewed By: beanz

Subscribers: emaste, lldb-commits, mgorny

Differential Revision: https://reviews.llvm.org/D36598

llvm-svn: 314849
2017-10-03 21:20:18 +00:00
Michal Gorny d5ac1812b7 [unittests] Build LLVMTestingSupport for out-of-source builds
The Process/gdb-remote test now requires the LLVMTestingSupport library
that is not installed by LLVM. As a result, when doing an out-of-source
build it fails being unable to find the library. To solve that, build
a local copy of the library when building LLDB with unittests and LLVM
sources available. This is based on how we deal with bundled gtest
sources.

Differential Revision: https://reviews.llvm.org/D36886

llvm-svn: 311355
2017-08-21 17:41:39 +00:00
Pavel Labath 015f17d3cc New framework for lldb client-server communication tests.
Summary:
This is a new C++ test framework based on Google Test, and one working
example test.
The intention is to replace the existing tests in
packages/Python/lldbsuite/test/tools/lldb-server/ with this suite
and use this framework for all new client server tests.

Reviewers: labath, beanz

Reviewed By: labath, beanz

Subscribers: beanz, emaste, zturner, tberghammer, takuto.ikuta, krytarowski, mgorny, lldb-commits

Differential Revision: https://reviews.llvm.org/D32930
Patch by Jason Majors <jmajors@google.com>

llvm-svn: 304793
2017-06-06 13:40:18 +00:00
Arnaud A. de Grandmaison af199153cc Remove vestigial CLANG_USED_LIBS.
The actual definition was removed 4 months ago with r294515.

llvm-svn: 304527
2017-06-02 07:48:35 +00:00
Chris Bieneman efd065e6a0 Support Unit Testing debugserver
Summary:
This patch refactors the CMake build system's support for building debugserver to allow us to build the majority of debugserver's sources into the debugserverCommon library which can then be reused by unit tests.

The first unit test I've written tests debug server's ability to accept incoming connections from LLDB. The test forks the process, and one side creates a listening socket using debugserver's socket API, the other side creates a transmitting socket using LLDB's TCPSocket class.

I have no clue where to even start getting this connected into the LLDB Xcode project, so for now these tests are CMake-only.

Reviewers: zturner, labath, jasonmolenda

Subscribers: lldb-commits, mgorny

Differential Revision: https://reviews.llvm.org/D31357

llvm-svn: 300111
2017-04-12 21:56:29 +00:00
Zachary Turner 8d48cd6009 Resubmit "Delete the remainder of platform specific code in FileSpec."
This was causing a test failure in one of LLDB's tests which
specifically dealt with a limitation in LLVM's implementation
of home_directory() that LLDB's own implementation had worked
around.

This limitation has been addressed in r298513 on the LLVM side,
so the failing test (which is now unnecessary as the limitation
no longer exists) was removed in r298519, allowing this patch to
be re-submitted without modification.

llvm-svn: 298526
2017-03-22 17:33:23 +00:00
Pavel Labath ed00beba12 Revert "Delete the remainder of platform specific code in FileSpec."
This reverts commit r298465 as it breaks
TestLLVM.TestHomeDirectory.test_tilde_home_directory.

llvm-svn: 298509
2017-03-22 14:04:43 +00:00
Zachary Turner aaedf89101 Delete the remainder of platform specific code in FileSpec.
Differential Revision: https://reviews.llvm.org/D31129

llvm-svn: 298465
2017-03-22 00:27:24 +00:00
Eugene Zemtsov 7993cc5eed Make LLDB skip server-client roundtrip for signals that don't require any actions
If QPassSignals packaet is supported by lldb-server, lldb-client will
utilize it and ask the server to ignore signals that don't require stops
or notifications.
Such signals will be immediately re-injected into inferior to continue
normal execution.

Differential Revision: https://reviews.llvm.org/D30520

llvm-svn: 297231
2017-03-07 21:34:40 +00:00
Zachary Turner 01c3243fc1 Remove dependencies from Utility to Core and Target.
With this patch, the only dependency left is from Utility
to Host.  After this is broken, Utility will finally be
standalone.

Differential Revision: https://reviews.llvm.org/D29909

llvm-svn: 295088
2017-02-14 19:06:07 +00:00
Chris Bieneman fd2f0cb170 [CMake] Final dependency cleanup patch!
Summary:
This patch removes the over-specified dependencies from LLDBDependencies and instead relies on the dependencies as expressed in each library and tool.

This also removes the library looping in favor of allowing CMake to do its thing. I've tested this patch on Darwin, and found no issues, but since linker semantics vary by system I'll also work on testing it on other platforms too.

Help testing would be greatly appreciated.

Reviewers: labath, zturner

Subscribers: danalbert, srhines, mgorny, jgosnell, lldb-commits

Differential Revision: https://reviews.llvm.org/D29352

llvm-svn: 294515
2017-02-08 21:00:46 +00:00
Pavel Labath 86b03cf086 Fix windows build after r293821
We started passing the list of libraries to link to the
add_lldb_unittest macro, but that macro wasn't actually doing anything
with them. Fix that.

llvm-svn: 293913
2017-02-02 18:14:04 +00:00
Chris Bieneman 1751311a87 [CMake] Update unit tests with accurate dependencies
This is extending the updates from r293696 to the LLDB unit tests.

llvm-svn: 293821
2017-02-01 22:17:00 +00:00
Pavel Labath 23ccc29197 Open ELF core dumps with more than 64K sections
Summary:
Problem:

There are three filelds in the ELF header - e_phnum, e_shnum, and e_shstrndx -
that could be bigger than 64K and therefore do not fit in 16 bits reserved for
them in the header. If this happens, pretty often there is a special section at
index 0 which contains their real values for these fields in the section header
in the fields sh_info, sh_size, and sh_link respectively.

Fix:

- Rename original fields in the header declaration. We want to have them around
just in case.

- Reintroduce these fields as 32-bit members at the end of the header. By default
they are initialized from the header in Parse() method.

- In Parse(), detect the situation when the header might have been extended into
section info #0 and try to read it from the same data source.

- ObjectFileELF::GetModuleSpecifications accesses some of these fields but the
original parse uses too small data source. Re-parse the header if necessary
using bigger data source.

- ProcessElfCore::CreateInstance uses header with potentially sentinel values,
but it does not access these fields, so a comment here is enough.

Reviewers: labath

Reviewed By: labath

Subscribers: davidb, lldb-commits, mgorny

Differential Revision: https://reviews.llvm.org/D29095
Author: Eugene Birukov <eugenebi@hotmail.com>

llvm-svn: 293714
2017-01-31 23:09:46 +00:00
Chris Bieneman 07522bb187 [CMake] Don't add gtest if it is already there
LLVM build trees export the gtest library through a special export set. If you're building against a build tree you shouldn't need to re-add gtest, but if you're building against an installed LLVM you do.

llvm-svn: 288691
2016-12-05 19:40:34 +00:00
Michal Gorny 1f368434f0 [cmake] Build gtest from LLVM when building standalone
Include the gtest utility directory from LLVM sources when performing
a stand-alone build of LLDB. This is necessary to have a correct gtest
library to link tests against, as the one used by LLVM is not installed
(and not supposed to be). This is the same approach as used in clang.

Differential Revision: https://reviews.llvm.org/D26245

llvm-svn: 285865
2016-11-02 22:57:23 +00:00
Jason Molenda 74b8fbcba7 Re-commit the changes from r282565 that I had to back out because of
a linux bot test failure.  That one is fixed; hopefully there won't
be any others turned up this time.

The eh_frame augmentation code wasn't working right after the 
reorg/rewrite of the classes.  It works correctly now for the one
test that was failing - but we'll see what the test bots come up
with. 

<rdar://problem/28509178> 

llvm-svn: 282659
2016-09-29 01:00:16 +00:00
Jason Molenda 536ff0dd2f Reverting r282565.
A testbot found a regression introduced in the testsuite with
the changes in r282565 on Ubuntu (TestStepNoDebug.ReturnValueTestCase).
I'll get this set up on an ubuntu box and figure out what is happening
there -- likely a problem with the eh_frame augmentation, which isn't
used on macosx.

llvm-svn: 282566
2016-09-28 03:16:14 +00:00
Jason Molenda 1c9858b298 Refactor the x86 UnwindAssembly class into a separate class called
x86AssemblyInspectionEngine and the current UnwindAssembly_x86 to
allow for the core engine to be exercised by unit tests.

The UnwindAssembly_x86 class will have access to Targets, Processes,
Threads, RegisterContexts -- it will be working in the full lldb
environment.

x86AssemblyInspectionEngine is layered away from all of that, it is
given some register definitions and a bag of bytes to profile.

I wrote an initial unittest for a do-nothing simple x86_64/i386
function to start with.  I'll be adding more.

The x86 assembly unwinder was added to lldb early in its bringup;
I made some modernization changes as I was refactoring the code
to make it more consistent with how we write lldb today.

I also added RegisterContextMinidump_x86_64.cpp to the xcode project
file so I can run the unittests from that.

The testsuite passes with this change, but there was quite a bit of
code change by the refactoring and it's possible there are some 
issues.  I'll be testing this more in the coming days, but it looks
like it is behaving correctly as far as I can tell with automated
testing.

<rdar://problem/28509178> 

llvm-svn: 282565
2016-09-28 02:52:19 +00:00
Zachary Turner 6fa7681bb6 Convert many functions to use StringRefs.
Where possible, remove the const char* version.  To keep the
risk and impact here minimal, I've only done the simplest
functions.

In the process, I found a few opportunities for adding some
unit tests, so I added those as well.

Tested on Windows, Linux, and OSX.

llvm-svn: 281799
2016-09-17 02:00:02 +00:00
Pavel Labath 9361c439e8 Fix parsing of complicated C++ names
Summary:
CPlusPlusLanguage::MethodName was not correctly parsing templated functions whose demangled name
included the return type -- the space before the function name was included in the "context" and
the context itself was not terminated correctly due to a misuse of the substr function (second
argument is length, not the end position). Fix that and add a regression test.

Reviewers: clayborg

Subscribers: lldb-commits

Differential Revision: https://reviews.llvm.org/D23608

llvm-svn: 279038
2016-08-18 08:21:38 +00:00
Pavel Labath 8c1b6bd7d2 Reapply "Rewrite gdb-remote's SendContinuePacketAndWaitForResponse"
Resumbitting the commit after fixing the following problems:
- broken unit tests on windows: incorrect gtest usage on my part (TEST vs. TEST_F)
- the new code did not correctly handle the case where we went to interrupt the process, but it
  stopped due to a different reason - the interrupt request would remain queued and would
  interfere with the following "continue". I also added a unit test for this case.

This reapplies r277156 and r277139.

llvm-svn: 278118
2016-08-09 12:04:46 +00:00
Pavel Labath 4cb699260c Revert "Rewrite gdb-remote's SendContinuePacketAndWaitForResponse"
This reverts commit r277139, because:
- broken unittest on windows (likely typo on my part)
- seems to break TestCallThatRestart (needs investigation)

llvm-svn: 277154
2016-07-29 15:41:52 +00:00
Pavel Labath e768c4b858 Rewrite gdb-remote's SendContinuePacketAndWaitForResponse
SendContinuePacketAndWaitForResponse was huge function with very complex interactions with
several other functions (SendAsyncSignal, SendInterrupt, SendPacket). This meant that making any
changes to how packet sending functions and threads interact was very difficult and error-prone.

This change does not add any functionality yet, it merely paves the way for future changes. In a
follow-up, I plan to add the ability to have multiple query packets in flight (i.e.,
request,request,response,response instead of the usual request,response sequences) and use that
to speed up qModuleInfo packet processing.

Here, I introduce two special kinds of locks: ContinueLock, which is used by the continue thread,
and Lock, which is used by everyone else. ContinueLock (atomically) sends a continue packet, and
blocks any other async threads from accessing the connection. Other threads create an instance of
the Lock object when they want to access the connection. This object, while in scope prevents the
continue from being send. Optionally, it can also interrupt the process to gain access to the
connection for async processing.

Most of the syncrhonization logic is encapsulated within these two classes. Some of it still
had to bleed over into the SendContinuePacketAndWaitForResponse, but the function is still much
more manageable than before -- partly because of most of the work is done in the ContinueLock
class, and partly because I have factored out a lot of the packet processing code separate
functions (this also makes the functionality more easily testable). Most importantly, there is
none of syncrhonization code in the async thread users -- as far as they are concerned, they just
need to declare a Lock object, and they are good to go (SendPacketAndWaitForResponse is now a
very thin wrapper around the NoLock version of the function, whereas previously it had over 100
lines of synchronization code).  This will make my follow up changes there easy.

I have written a number of unit tests for the new code and I have ran the test suite on linux and
osx with no regressions.

Subscribers: tberghammer

Differential Revision: https://reviews.llvm.org/D22629

llvm-svn: 277139
2016-07-29 13:10:02 +00:00
Zachary Turner 9d8a97ebd1 Add some unit tests for ClangASTContext.
In doing so, two bugs were uncovered (and fixed).  The first bug
is that ClangASTContext::RemoveFastQualifiers() was broken, and
was not removing fast qualifiers (or doing anything else for that
matter).  The second bug is that UnifyAccessSpecifiers treated
AS_None asymmetrically, which is probably an edge case, but seems
like a bug nonetheless.

llvm-svn: 265200
2016-04-01 23:20:35 +00:00
Zachary Turner 74e08ca05c Add support for reading line tables from PDB files.
PDB is Microsoft's debug information format, and although we
cannot yet generate it, we still must be able to consume it.
Reason for this is that debug information for system libraries
(e.g. kernel32, C Runtime Library, etc) only have debug info
in PDB format, so in order to be able to support debugging
of system code, we must support it.

Currently this code should compile on every platform, but on
non-Windows platforms the PDB plugin will return 0 capabilities,
meaning that for now PDB is only supported on Windows.  This
may change in the future, but the API is designed in such a way
that this will require few (if any) changes on the LLDB side.
In the future we can just flip a switch and everything will
work.

This patch only adds support for line tables.  It does not return
information about functions, types, global variables, or anything
else.  This functionality will be added in a followup patch.

Differential Revision: http://reviews.llvm.org/D17363
Reviewed by: Greg Clayton

llvm-svn: 262528
2016-03-02 22:05:52 +00:00
Pavel Labath b625a0e1bc Fix invalid shift operator overload in Scalar
Summary: This also fixes an infinite recursion between lldb_private::operator>> () and Scalar::operator>>= ().

Reviewers: sagar, tberghammer, labath

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D16868

Patch by Marianne Mailhot-Sarrasin

llvm-svn: 260239
2016-02-09 17:28:01 +00:00
Ryan Brown 998c8a1c1c Create an expression parser for Go.
The Go interpreter doesn't JIT or use LLVM, so this also
moves all the JIT related code from UserExpression to a new class LLVMUserExpression.

Differential Revision: http://reviews.llvm.org/D13073

Fix merge

llvm-svn: 251820
2015-11-02 19:30:40 +00:00
Todd Fiala 528a30d62c Xcode: added lldb-gtest target to build and run the gtests in the unittests directory.
Also added a placeholder Editline gtest for some code that I'll add as soon
as I make sure this addition doesn't break any of the build bots.

This change also introduces some Xcode user-defined variables that I've used
to attempt to isolate the way Python is integrated into the build.  I don't have
the rest of LLDB using it yet, I'm using the gtests as my guinea pig on that.
Currently these are:
PYTHON_FRAMEWORK_PATH
PYTHON_VERSION_MAJOR
PYTHON_VERSION_MINOR

I will convert the rest over to it after this gets a little time to bake
and any kinks are worked out of it.

llvm-svn: 251261
2015-10-25 21:42:35 +00:00
Zachary Turner 22c8efcd34 Port native Python-API to 3.x
With this change, liblldb is 95% of the way towards being able
to work under both Python 2.x and Python 3.x.  This should
introduce no functional change for Python 2.x, but for Python
3.x there are some important changes.  Primarily, these are:

1) PyString doesn't exist in Python 3.  Everything is a PyUnicode.
   To account for this, PythonString now stores a PyBytes instead
   of a PyString.  In Python 2, this is equivalent to a PyUnicode,
   and in Python 3, we do a conversion from PyUnicode to PyBytes
   and store the PyBytes.
2) PyInt doesn't exist in Python 3.  Everything is a PyLong.  To
   account for this, PythonInteger stores a PyLong instead of a
   PyInt.  In Python 2.x, this requires doing a conversion to
   PyLong when creating a PythonInteger from a PyInt.  In 3.x,
   there is no PyInt anyway, so we can assume everything is a
   PyLong.
3) PyFile_FromFile doesn't exist in Python 3.  Instead there is a
   PyFile_FromFd.  This is not addressed in this patch because it
   will require quite a large change to plumb fd's all the way
   through the system into the ScriptInterpreter.  This is the only
   remaining piece of the puzzle to get LLDB supporting Python 3.x.

Being able to run the test suite is not addressed in this patch.
After the extension module can compile and you can enter an embedded
3.x interpreter, the test suite will be addressed in a followup.

llvm-svn: 249886
2015-10-09 19:45:41 +00:00
Zachary Turner 2c1f46dcc6 Convert the ScriptInterpreter system to a plugin-based one.
Previously embedded interpreters were handled as ad-hoc source
files compiled into source/Interpreter.  This made it hard to
disable a specific interpreter, or to add support for other
interpreters and allow the developer to choose which interpreter(s)
were enabled for a particular build.

This patch converts script interpreters over to a plugin-based system.
Script interpreters now live in source/Plugins/ScriptInterpreter, and
the canonical LLDB interpreter, ScriptInterpreterPython, is moved there
as well.

Any new code interfacing with the Python C API must live in this location
from here on out.  Additionally, generic code should never need to
reference or make assumptions about the presence of a specific interpreter
going forward.

Differential Revision: http://reviews.llvm.org/D11431
Reviewed By: Greg Clayton

llvm-svn: 243681
2015-07-30 20:28:07 +00:00
Pavel Labath c076559a5b [NativeProcessLinux] fold ThreadStateCoordinator into NPL
Summary:
Since all TSC operations are now executed synchronously, TSC has become a little more than a
messenger between different parts of NativeProcessLinux. Therefore, the reason for its existance
has disappeared.

This commit moves the contents of the TSC into the NPL class. This will enable us to remove all
the boilerplate code in NPL (as it stands now, this is most of the class), which I plan to do in
subsequent commits.

Unfortunately, this also means we will lose the unit tests for the TSC. However, since the size
of the TSC has diminished, the unit tests were not testing much at this point anyway, so it's not
a big loss.

No functional change.

Test Plan: All tests continue to pass.

Reviewers: vharron, chaoren

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D9296

llvm-svn: 236587
2015-05-06 10:46:34 +00:00
Pavel Labath 980b92a8e6 Add missing libraries to unittest link
Summary:
Currently, linking of the unittests fails on linux because it is missing a bunch of symbols from
libedit, curses, etc. This fixes the build by adding the correct dependencies.

Test Plan: Linking works, unit tests run.

Reviewers: zturner

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D9244

llvm-svn: 235853
2015-04-27 09:26:03 +00:00
Zachary Turner 799770c03a Fix linking of unit tests via CMake on Windows.
A previous attempt to make the unit tests link properly on
Linux broke it for Windows.  This patch fixes it for both platforms.

llvm-svn: 232648
2015-03-18 16:56:24 +00:00
Zachary Turner 85bc48ca74 Convert CRLF to LF.
I accidentally let some Windows line endings slip in.  This is a
good reminder for me to use core.eol=lf.

llvm-svn: 232560
2015-03-17 22:51:21 +00:00
David Blaikie 3dfb86b641 Fix the clang -Werror build & make the unit tests link under Linux
The order of libraries passed to the linker didn't work under linux (you
need the llvm libraries first, then the lldb libraries). I modelled this
after clang's setup here. Seemed simple enough to just be consistent.

llvm-svn: 232461
2015-03-17 03:32:21 +00:00
Zachary Turner 073951f28b Fix a bug related to arg escaping, and add unit tests.
A recent refactor had introduced a bug where if you escaped a
character, the rest of the string would get processed incorrectly.

This patch fixes that bug and adds some unit tests for Args.

llvm-svn: 232288
2015-03-14 23:39:42 +00:00
Zachary Turner eeba1a896a [CMake] Make the unittests link against everything...
Sigh.  There's really not a good alternative until we decouple
python from lldb better.  The only way the build works right now
is by having every executable link against every LLDB library.
This causes implicit transitive link dependencies on the union
of everything that LLDB brings in.  Which means that if all we
want is one header file from interpreter, we have to bring in
everything, including everything that everything depends on,
which means python.

There's outstanding efforts to address this, but it's not yet
complete.  So until then, this is all we can do.

llvm-svn: 232287
2015-03-14 23:39:28 +00:00
Zachary Turner 719ec93a74 Rework the gtest directory structure.
This makes the directory structure mirror the canonical LLVM
directory structure for a gtest suite.

Additionally, this patch deletes the xcode project.  Nobody
is currently depending on this, and it would be better to have
gtest unit tests be hand-maintained in the Xcode workspace
rather than using this python test runner.  Patches to that
effect will be submitted as followups.

llvm-svn: 232211
2015-03-13 20:54:57 +00:00