101 Commits

Author SHA1 Message Date
Pavel Labath
9decf0405f [lldb/test] Simplify Makefile rules for .d files
The sed line in the rules was adding the .d file as a target to the
dependency rules -- to ensure the file gets rebuild when the sources
change. The same thing can be achieved more elegantly with some -M
flags.
2020-07-20 15:53:19 +02:00
Pavel Labath
313fca6520 [lldb/test] Remove JOIN_CMD from Makefile.rules
It's possible to achieve the same effect by providing multi-step recipe
instead of a single-step recipe where the step happens to contain
multiple commands.
2020-07-15 16:03:45 +02:00
Adrian Prantl
7e825abd57 Repair support for launching ios/tv/watch simulator binaries through platform
and delete a bunch (but not all) redundant code. If you compare the remaining implementations of Platform*Simulator.cpp, there is still an obvious leftover cleanup task.

Specifically, this patch

- removes SDK initialization from dotest (there is equivalent but more
  complete code in Makefile.rules)

- make Platform*Simulator inherit the generic implementation of
  PlatformAppleSimulator (more can be done here)

- simplify the platform logic in Makefile.rules

- replace the custom SDK finding logic in Platform*Simulator with XcodeSDK

- adds a test for each supported simulator

Differential Revision: https://reviews.llvm.org/D81980
2020-06-19 09:42:44 -07:00
Pavel Labath
539b47c9d1 [lldb/Makefile.rules] Apply CFLAGS_EXTRAS after debug-info mode flags
This makes it possible to conditionally override some of these flags via
CFLAGS_EXTRAS. It should be NFC right now, but this seems the logical
order in which to apply these things, and I am going to make use of this
in another patch.
2020-06-10 14:27:53 +02:00
Raphael Isemann
54422d2170 Revert "[lldb] Pass -fPIC flag even when DYLIB_ONLY is set"
This reverts commit fd0ab3b3eb88de3fe4792c34b50084595e22d68d.

The fix here is incorrect and the actual fault was an incorrect test Makefile.

To give some more background:

The original test for D80798 compiled three source files into either one
executable or one executable + 2 shared libraries, each being one different
test setup. If both the monolithic executable and the shared libraries
where compiled in the same directory, then Make would overwrite the .o files
of one test setup with the other. This caused that while -fPIC was passed
correctly to the test setup with the shared libraries, the compiler invocations
for the monolithic executable would later overwrite these object files (and
as only the test setup with the shared library used -fPIC, it appeared as if
the shared library object files didn't receive the -fPIC flag).

Thanks to Pavel for figuring this out.
2020-06-01 14:41:08 +02:00
Raphael Isemann
fd0ab3b3eb [lldb] Pass -fPIC flag even when DYLIB_ONLY is set
Summary:
It seems that when we rewrite a few rules to only build a dylib (i.e., when DYLIB_ONLY is set),
the rule for setting the CFLAGS for the dylib's object file compilation will no longer work. From what I can
see this is because in DYLIB_ONLY mode we pretend to compile the main executable so
the DYLIB_OBJECTS scope is actually never used.

This patch makes `-fPIC` unstopped if DYLIB_ONLY is set so that -fPIC actually ends up in the
CFLAGS for the dylib object file compilation.

The test for this is D80798 which only compiles on Linux with this patch.

Reviewers: friss, labath

Reviewed By: friss

Subscribers: JDevlieghere

Differential Revision: https://reviews.llvm.org/D80789
2020-05-30 18:05:16 +02:00
Pavel Labath
e0dbd02513 [lldb/test] Make TestLoadUnload compatible with windows
Summary:
This patch introduces a header "dylib.h" which can be used in tests to
handle shared libraries semi-portably. The shared library APIs on
windows and posix systems look very different, but their underlying
functionality is relatively similar, so the mapping is not difficult.

It also introduces two new macros to wrap the functinality necessary to
export/import function across the dll boundary on windows. Previously we
had the LLDB_TEST_API macro for this purpose, which automagically
changed meaning depending on whether we were building the shared library
or the executable. While convenient for simple cases, this approach was
not sufficient for the more complicated setups where one deals with
multiple shared libraries.

Lastly it rewrites TestLoadUnload, to make use of the new APIs. The
trickiest aspect there is the handling of DYLD_LIBRARY_PATH on macos --
previously setting this variable was not needed as the test used
@executable_path-relative dlopens, but the new generic api does not
support that. Other systems do not support such dlopens either so the
test already contained support for setting the appropriate path
variable, and this patch just makes that logic more generic. In doesn't
seem that the purpose of this test was to exercise @executable_path
imports, so this should not be a problem.

These changes are sufficient to make some of the TestLoadUnload tests
pass on windows. Two other tests will start to pass once D77287 lands.

Reviewers: amccarth, jingham, JDevlieghere, compnerd

Subscribers: lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D77662
2020-04-14 11:10:59 +02:00
Adrian Prantl
fa001767f0 Fix typos 2020-01-21 15:32:34 -08:00
Fred Riss
509b78883d [lldb/Makefile.rules] Force the default target to be 'all'
The test harness invokes the test Makefiles with an explicit 'all'
target, but it's handy to be able to recursively call Makefile.rules
without speficying a goal.

Some time ago, we rewrote some tests in terms of recursive invocations
of Makefile.rules. It turns out this had an unintended side
effect. While using $(MAKE) for a recursive invocation passes all the
variables set on the command line down, it doesn't pass the make
goals. This means that those recursive invocations would invoke the
default rule. It turns out the default rule of Makefile.rules is not
'all', but $(EXE). This means that ti would work becuase the
executable is always needed, but it also means that the created
binaries would not follow some of the other top-level build
directives, like MAKE_DSYM.

Forcing 'all' to be the default target seems easier than making sure
all the invocations are correct going forward. This patch does this
using the .DEFAULT_GOAL directive rather than hoisting the 'all' rule
to be the first one of the file. It seems like this explicit approach
will be less prone to be broken in the future. Hopefully all the make
implementations we use support it.
2020-01-17 20:34:16 -08:00
Adrian Prantl
1cbe003894 [-gmodules] Let LLDB log a warning if the Clang module hash mismatches.
This feature is mostly there to aid debugging of Clang module issues,
since the only useful actual the end-user can to is to recompile their
program.

Differential Revision: https://reviews.llvm.org/D70272
2019-11-15 11:52:13 -08:00
Muhammad Omair Javaid
f9f30f2ecb [LLDB] Fix whitespace/tabs mismatch in lldbsuite Makefile.rules
This patch fixes whitespace/tabs mismatch in
lldb/packages/Python/lldbsuite/test/make/Makefile.rules

Legacy make files always used tabs though modern make version can
work with white-spaces I have chosen the legacy just to be safe.

Signed-off-by: Muhammad Omair Javaid <omair.javaid@linaro.org>

Differential Revision: https://reviews.llvm.org/D70154
2019-11-14 13:53:58 +05:00
Muhammad Omair Javaid
9b95835698 [LLDB] Add core definition for armv8l and armv7l
This patch adds core definitions in lldb ArchSpecs for armv8l and armv7l cores.

This was needed because on Linux running on 32-bit Arm v8 we are returned
armv8l in case we are running 32-bit sysroot on 64bit kernel. In case of 32-bit
kernel and 32-bit sysroot running on arm v8 hardware we are returned armv7l.
This is quite common when we run 32 bit arm using docker container.

Signed-off-by: Muhammad Omair Javaid <omair.javaid@linaro.org>

Differential Revision: https://reviews.llvm.org/D69904
2019-11-13 05:40:09 +05:00
Adrian Prantl
6a07b99c90 Remove CC autodetection from Makefile.rules
Auto-detecting CC in Makefile.rules is no longer useful. Ever since
out-of-tree builds we are better off just running lldb-dotest which
sets it directly. This also makes it harder to accidentally unset CC
in a Makefile.

Differential Revision: https://reviews.llvm.org/D68731

llvm-svn: 374402
2019-10-10 17:59:18 +00:00
Jonas Devlieghere
27c23653ae [test] Use a different module cache for Shell and API tests.
Before the test reorganization, everything was part of a single test
suite with a single module cache. Now that things are properly separated
this is no longer the case. Only the shell tests inherited the logic to
properly configure and wipe the module caches. This patch adds that
logic back for the API tests. While doing so, I noticed that we were
configuring a Clang module cache in CMake, but weren't actually using it
from dotest.py. I included a fix for that in this patch as well.

Differential revision: https://reviews.llvm.org/D68755

llvm-svn: 374386
2019-10-10 17:27:09 +00:00
Frederic Riss
0e891bcf79 Makefile.rules: add missing CODESIGN call
When building an executable and a shared library at the same time (yes,
Makefile.rules is setup to do this!) the executable was not codesigned.

llvm-svn: 374251
2019-10-09 22:35:56 +00:00
Frederic Riss
3fb4e49a68 [Testsuite] Get rid of most of the recursive shared library Makefiles
Most of the secondary Makefiles we have are just a couple variable
definitions and then an include of Makefile.rules. This patch removes
most of the secondary Makefiles and replaces them with a direct
invocation of Makefile.rules in the main Makefile. The specificities
of each sub-build are listed right there on the recursive $(MAKE)
call. All the variables that matter are being passed automagically by
make as they have been passed on the command line. The only things you
need to specify are the variables customizating the Makefile.rules
logic for each image.

This patch also removes most of the clean logic from those Makefiles
and from Makefile.rules. The clean rule is not required anymore now
that we run the testsuite in a separate build directory that is wiped
with each run. The patch leaves a very crude version of clean in
Makefile.rules which removes everything inside of $(BUILDDIR). It does
this only when the $(BUILDDIR) looks like a sub-directory of our
standard testsuite build directory to be extra safe.

Reviewers: aprantl, labath

Subscribers: lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D68558

llvm-svn: 374076
2019-10-08 16:23:28 +00:00
Adrian Prantl
5c4c9e6172 Canonicalize variable usage in testsuite Makefiles
This test streamlines our use of variables that are expected by
Makefile.rules throughout the test suite. Mostly it replaced
potentially dangerous overrides and updates of variables like CFLAGS
with safe assignments to variables reserved for this purpose like
CFLAGS_EXTRAS.

Differential Revision: https://reviews.llvm.org/D67984

llvm-svn: 372795
2019-09-25 00:36:00 +00:00
Jonas Devlieghere
1cefad10cf [Make] Add support for building NeXT-style frameworks
This patch extends the Makefile.rules to build NeXT-style frameworks. It
also fixes a bug in the clean logic that would accidentally delete the
.mm source file instead of the .o object file.

Thanks a lot to Adrian who was instrumental is getting this to work!

llvm-svn: 372669
2019-09-23 22:31:16 +00:00
Jonas Devlieghere
85d6edb265 Revert "[test] Address TestConcurrentMany*.py flakiness on macOS"
This reverts my change to pseudo_barrier.h which isn't necessary anymore
after Fred's fix to debugserver and caused TestThreadStepOut to fail.

llvm-svn: 370963
2019-09-04 19:36:29 +00:00
Adrian Prantl
2461061168 Upstream macCatalyst support in debugserver and the macOS dynamic loader
plugin.

Unfortunately the test is currently XFAILed because of missing changes
to the clang driver.

Differential Revision: https://reviews.llvm.org/D67124

llvm-svn: 370931
2019-09-04 17:23:15 +00:00
Frederic Riss
cc5b509b9e Workaround TestConcurrentMany* flakiness in a more pricipled way
The flakiness on our local machines seems to come for a race in the kernel
between task_suspend and the creation of the Mach exceptions for the threads
that hit breakpoints. The debugserver code is written with the assumption
that the kernel will be able to provide us with all the exceptions for a
given task once task_suspend returns. On machines with higher core counts,
this seems not to be the case. The first batch of exceptions we get after
task_suspend does not contain exceptions for all the threads that have hit
a breakpoint, thus they get misreprorted in the first stop packet.

Adding a 1ms timeout to the call that retrieves the batch of exceptions
seems to workaround the issue reliably on our machines, and it shoulnd't
impact standard debugging scenarios too much (a stop will incur an additional
1ms delay). We'll be talking to the kernel team to figure out the right
contract for those APIs.

This patch also reverts part of Jonas' previous workaround for the
issue (r370785).

llvm-svn: 370916
2019-09-04 16:13:12 +00:00
Jonas Devlieghere
e44f2eb315 [test] Addres TestConcurrentMany*.py flakiness on macOS
On "fast" macOS machines, the TestConcurrentMany*.py tests would fail
randomly with different numbers of breakpoints, watchpoints, etc. This
seems to be avoidable by giving the threads a little time to breath
after the passing the synchronization barrier. This is far from a
structural fix but it reduces the flakiness.

llvm-svn: 370785
2019-09-03 17:04:04 +00:00
Alex Langford
e5001fe5c1 [lldb][test_suite] skip tests of libstdcpp on Android and clean up
Summary: Delete the android target from `libstdcpp` test category, since android no longer support libstdcxx

Reviewers: xiaobai, labath

Reviewed By: labath

Subscribers: srhines, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D64771

llvm-svn: 366770
2019-07-23 00:28:26 +00:00
Alex Langford
695f7821e2 [lldb_test_suite] Fix lldb test suite targeting remote Android
Summary:
Fixed `Android.rules` for running test suite on remote android
- the build configuration is not compatible with ndk structure, change it to link to static libc++
- generally clang should be able to use libc++ and will link against the right library, but some libc++ installations require the user manually link libc++abi.
- add flag `-lc++abi` to fix the test binary build failure

Added `skipIfTargetAndroid` `skipUnlessTargetAndroid` for better test support
- the `skipIfPlatform` method will ask `lldbplatformutil.getPlatform()` for platform info which is actually the os type, and //Android// is not os type but environment
- create this function to handle the android target condition

**To Run Test on Remote Android**
1 start lldb-server on your devices
2 run lldb-dotest with following configuration:
`./lldb-dotest --out-of-tree-debugserver --arch aarch64 --platform-name remote-android --platform-url connect://localhost:12345 --platform-working-dir /data/local/tmp/ --compiler your/ndk/clang`

Reviewers: xiaobai, labath

Reviewed By: labath

Subscribers: labath, javed.absar, kristof.beyls, srhines, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D64118

llvm-svn: 365561
2019-07-09 21:35:58 +00:00
Adrian Prantl
74f0e2cc39 Makefile.rules: Normalize use of trailing slashes in path variables.
llvm-svn: 356711
2019-03-21 20:36:23 +00:00
Raphael Isemann
6c0bbfc0c9 Add ability to import std module into expression parser to improve C++ debugging
Summary:
This patch is the MVP version of importing the std module into the expression parser to improve C++ debugging.

What happens in this patch is that we inject a `@import std` into our expression source code. We also
modify our internal Clang instance for parsing this expression to work with modules and debug info
at the same time (which is the main change in terms of LOC). We implicitly build the `std` module on the first use. The
C++ include paths for building are extracted from the debug info, which means that this currently only
works if the program is compiled with `-glldb -fmodules` and uses the std module. The C include paths
are currently specified by LLDB.

I enabled the tests currently only for libc++ and Linux because I could test this locally. I'll enable the tests
for other platforms once this has landed and doesn't break any bots (and I implemented the platform-specific
C include paths for them).

With this patch we can now:
* Build a libc++ as a module and import it into the expression parser.
* Read from the module while also referencing declarations from the debug info. E.g. `std::abs(local_variable)`.

What doesn't work (yet):
* Merging debug info and C++ module declarations. E.g. `std::vector<CustomClass>` doesn't work.
* Pretty much anything that involves the ASTImporter and templated code. As the ASTImporter is used for saving the result declaration, this means that we can't
call yet any function that returns a non-trivial type.
* Use libstdc++ for this, as it requires multiple include paths and Clang only emits one include path per module. Also libstdc++ doesn't support Clang modules without patches.

Reviewers: aprantl, jingham, shafik, friss, davide, serge-sans-paille

Reviewed By: aprantl

Subscribers: labath, mgorny, abidh, jdoerfert, lldb-commits

Tags: #c_modules_in_lldb, #lldb

Differential Revision: https://reviews.llvm.org/D58125

llvm-svn: 355939
2019-03-12 17:09:33 +00:00
Adrian Prantl
5cc2790410 Makefile.rules: Upstream SDKROOT handling code for Darwin.
llvm-svn: 355843
2019-03-11 17:24:10 +00:00
Michal Gorny
a2cc148f9f [lldb] [test] Pass appropriate -L&-Wl,-rpath for libc++ on NetBSD
Pass appropriate -L and -Wl,-rpath flags pointing out to the LLVM
library directory on NetBSD.  This is necessary since clang on NetBSD
requires libc++ but it is not installed as part of the system
by default.  For the purpose of running buildbot, we want LLDB to use
just-built libc++.

Differential Revision: https://reviews.llvm.org/D58630

llvm-svn: 355502
2019-03-06 14:03:18 +00:00
Michal Gorny
65ebfaf0be [lldb] [test] Do not link -ldl on NetBSD
Fix the load_* using test Makefiles not to link -ldl on NetBSD.
There is no such a library on NetBSD, and dlopen() is available
without a library.  Quoting the manpage:

    (These functions are not in a library.  They are included in every
    dynamically linked program automatically.)

To resolve this portably, introduce a new USE_LIBDL option.  If it set
to 1, Makefile.rules automatically appends -ldl on platforms needing it.

Differential Revision: https://reviews.llvm.org/D58517

llvm-svn: 354617
2019-02-21 20:28:21 +00:00
Adrian Prantl
dfe7bbc1a4 Move -fcxx-modules to MANDATORY_MODULE_BUILD_CFLAGS (NFC)
llvm-svn: 354418
2019-02-20 01:14:05 +00:00
Stella Stamenova
c84754e7f9 [lldbsuite] Build with -gdwarf on Windows
Earlier this month there was a change in clang that defaulted to using codeview rather than dwarf on Windows. Since all the tests rely on dwarf, we need to explicitly request dwarf when building on Windows.

llvm-svn: 347924
2018-11-29 22:15:23 +00:00
Stella Stamenova
c01fc1c696 [lldbsuite] Invoke sed on Windows to determine the cache dir for clang
Summary: In order to invoke sed on Windows, we need to quote the command correctly. Since we already have commands which do that, move the definitions at the beginning of the file and then re-use them for each command.

Reviewers: aprantl, zturner

Subscribers: teemperor, lldb-commits

Differential Revision: https://reviews.llvm.org/D54709

llvm-svn: 347243
2018-11-19 18:41:33 +00:00
Zachary Turner
f8610fc4e7 Revert "Implement basic DidAttach and DidLaunch for DynamicLoaderWindowsDYLD"
This breaks many tests on Windows, which now all fail with an error such
as "Unable to read memory at address <xxxxxxxx>".

llvm-svn: 347174
2018-11-18 20:48:25 +00:00
Adrian Prantl
a900471d58 Just don't even attempt to invoke sed on Windows.
llvm-svn: 347125
2018-11-17 01:27:47 +00:00
Adrian Prantl
3d6c743f4e Revert "Makefile.rules: Fix the windows-sed-quoting issue harder."
llvm-svn: 347124
2018-11-17 01:27:46 +00:00
Adrian Prantl
b3d7092ab8 Makefile.rules: Fix the windows-sed-quoting issue harder.
llvm-svn: 347120
2018-11-17 00:45:58 +00:00
Adrian Prantl
ac35cd330a Makefile.rules: Degrade gracefully on Windows machines without sed.
llvm-svn: 347104
2018-11-16 22:44:57 +00:00
Adrian Prantl
d1b33162b5 Makefile.rules: Use a shared clang module cache directory.
Just to be safe, up until now each test used its own Clang module
cache directory. Since the compiler within one testsuite doesn't
change it is just as safe to share a clang module directory inside the
LLDB test build directory. This saves us from compiling tens of
gigabytes of redundant Darwin and Foundation .pcm files and also
speeds up running the test suite quite significantly.

rdar://problem/36002081

Differential Revision: https://reviews.llvm.org/D54601

llvm-svn: 347056
2018-11-16 16:19:07 +00:00
Nathan Lanza
04f9d0a0c3 Implement basic DidAttach and DidLaunch for DynamicLoaderWindowsDYLD
Summary:
This commit implements basic DidAttach and DidLaunch for the windows
DynamicLoader plugin which allow us to load shared libraries from the
inferior.

Reviewers: sas, zturner

Reviewed By: zturner

Differential Revision: https://reviews.llvm.org/D54544

llvm-svn: 346994
2018-11-15 20:58:09 +00:00
Nathan Lanza
5cc7de09ef Force SHELL to be cmd.exe on Windows for the test suite
Summary:
Windows make will search for other shells and choose those over cmd
if available (e.g. C:\cygdrive\bin\sh.exe). This shell has numerous
issues with path handling (/ vs \\ vs \ and C:). So default to using
cmd.exe which is known to work.

Reviewers: zturner, sas, xiaobai

Reviewed By: zturner

Differential Revision: https://reviews.llvm.org/D54510

llvm-svn: 346993
2018-11-15 20:56:44 +00:00
Adrian Prantl
24a255d9aa Makefile.rules: Don't use code signing on macOS; it isn't necessary.
llvm-svn: 345768
2018-10-31 19:42:02 +00:00
Jason Molenda
0128e7f540 Tiny testsuite tweaks. Don't run the apple simulator
tests when targetting a device.  Add an include to 
safe-to-call-func to work around a modules issue with
a certain combination of header files.  Add rules for
Darwin systems to ad-hoc codesign binaries that the
testsuite builds.

llvm-svn: 344635
2018-10-16 18:14:30 +00:00
Adrian Prantl
7fd4513920 Enable C++ tests to run in the -gmodules configuration on Darwin.
This addresses PR36048 (http://llvm.org/bugs/show_bug.cgi?id=36048)

rdar://problem/36776281

llvm-svn: 343545
2018-10-01 22:27:42 +00:00
Adrian Prantl
cd9f68ec05 Makefile.rules: Use an absolute path to the module cache directory.
This change is NFC, but it makes it more obvious in log files what happened.

llvm-svn: 340286
2018-08-21 15:46:15 +00:00
Pavel Labath
733ad45b9f Android.rules: Use libc++ by default
libstdc++ will soon be dropped from the android NDK. This patch makes
sure we are prepared for that by using libc++ in tests by default (i.e.,
except for libstdc++ data formatter tests).

Only a couple of small tweaks were needed to make this work:
- Add the libc++ include paths to CXXFLAGS only. This was necessary to
  make the tests compile with -fmodules. The modules tests have been
  disabled, but this way, they will be ready for them if they are
  enabled.
- in one test I had to add an explicit std::string copy to make sure the
  copy constructor is there for the expression evaluator to find it.

llvm-svn: 335344
2018-06-22 13:13:29 +00:00
Aaron Smith
ba48c9bde1 [lit, lldbsuite] Update the lldbsuite to correctly run tests on windows and windows server
Summary:
The new script to run the lldbtests as part of lit invokes each test by calling dotest.py, however, we cannot rely on the system to always correctly interpret the script as python causing the tests to be unresolved on windows (at least). To fix this, we need to make sure that the first parameter in the command line is the python executable itself.

In Makefile.rules, there are a number of windows specific definitions that rely on the HOST_OS being set as Windows_NT but the logic detecting the OS currently does not detect server versions of windows correctly. This change updates the logic to detect windows server as well.

Reviewers: asmith, labath, JDevlieghere, zturner

Reviewed By: JDevlieghere, zturner

Subscribers: zturner, llvm-commits

Differential Revision: https://reviews.llvm.org/D46020

llvm-svn: 330740
2018-04-24 17:08:05 +00:00
Jonas Devlieghere
1bf22e7722 [dotest] Use in-tree dsymutil on Darwin
Summary:
With the upstream implementation of dsymutil containing almost all
functionality from the one shipped with Xcode, we want to use the
in-tree version for running the test suite.

This will also allow us to re-enable TestUnicodeSymbols which was
failing because of the discrepancy in how Unicode symbols were hashed in
lldb and older versions of dsymutil.

Reviewers: aprantl, davide, jingham, labath

Subscribers: mgorny, llvm-commits, lldb-commits

Differential Revision: https://reviews.llvm.org/D45518

llvm-svn: 329889
2018-04-12 09:25:32 +00:00
Aaron Smith
30d7309f6d Only throw -fPIC when building a shared library
Summary:
Update makefiles to specify -fPIC in Makefile.rules and only throw -fPIC when building a shared library. This change is necessary to allow building the lldb tests on Windows where -fPIC is not a valid option. 

Update a few places to Python 3.x syntax


Reviewers: zturner, lldb-commits

Reviewed By: zturner

Subscribers: stella.stamenova, labath, llvm-commits

Differential Revision: https://reviews.llvm.org/D42994

llvm-svn: 324671
2018-02-08 23:10:29 +00:00
Adrian Prantl
5ec76fe720 Compile the LLDB tests out-of-tree.
This patch is the result of a discussion on lldb-dev, see
http://lists.llvm.org/pipermail/lldb-dev/2018-January/013111.html for
background.

For each test (should be eventually: each test configuration) a
separate build directory is created and we execute

  make VPATH=$srcdir/path/to/test -C $builddir/path/to/test -f $srcdir/path/to/test/Makefile -I $srcdir/path/to/test

In order to make this work all LLDB tests need to be updated to find
the executable in the test build directory, since CWD still points at
the test's source directory, which is a requirement for unittest2.

Although we have done extensive testing, I'm expecting that this first
attempt will break a few bots. Please DO NOT HESITATE TO REVERT this
patch in order to get the bots green again. We will likely have to
iterate on this some more.

Differential Revision: https://reviews.llvm.org/D42281

llvm-svn: 323803
2018-01-30 18:29:16 +00:00
Vedant Kumar
801362f067 Use test-specific module caches to avoid stale header conflicts
Stale global module caches cause problems for the bots. The modules
become invalid when clang headers are updated by version control, and
tests which use these modules fail to compile, e.g:

  fatal error: file '.../__stddef_max_align_t.h' has been modified since the module file '/var/.../Darwin.pcm' was built
  note: please rebuild precompiled header '/var/.../Darwin.pcm'

Eventually we should transition to having just a single module cache to speed
tests up. This patch should be just enough to fix the spurious bot failures due
to stale caches.

rdar://36479805, also related to llvm.org/PR36048

Differential Revision: https://reviews.llvm.org/D42277

llvm-svn: 323450
2018-01-25 18:01:27 +00:00