These were missed in the great refactor because they were added
concurrently with it. Since we started running tests in a more parallel
fashion they started to be flaky. This should fix it.
Now that we are no longer polluting the source tree, I also delete the
bit of custom cleanup code specific to these tests.
llvm-svn: 325495
Summary:
Consolidate LLDB_CODESIGN_IDENTITY logic in one place and use
SKIP_DEBUGSERVER, which can be set independently, to control
codesigning targets.
Currently, running cmake the first time in a clean directory, without
passing -DLLDB_CODESIGN_IDENTITY='', fails. However, subsequent runs
succeed. That's because LLDB_CODESIGN_IDENTITY gets added to the
CACHE after the initial test. To fix that, the default value must be
set before it's tested.
Here's the error produced on the first run:
CMake Error at tools/lldb/tools/debugserver/source/CMakeLists.txt:215 (add_custom_command):
No TARGET 'debugserver' has been created in this directory.
Differential Revision: https://reviews.llvm.org/D43432
llvm-svn: 325442
The test was generating long unix socket names, and the addition of a
new folder in the previous patch pushed it over the limit (although
linux has a fairly generous limit for path names, this does not apply to
unix sockets).
Modify the test to use a shorter name instead.
llvm-svn: 325340
The reason this test was disabled is no longer relevant. However, it
didn't turn into an unexpected success because of a syntax error in the
test itself. This commit fixes that and re-enables the test.
llvm-svn: 325339
Since we now can run multiple tests from the same directory at once, we
need to include the test name in the remote test directory instead.
I'm not sure if the test_number in the remote path is necessary anymore
(or even if it was ever necessary), but I choose to leave it in for now.
llvm-svn: 325334
Summary:
The PowerPC64 ABI plugin was modified to:
- properly handle vector type return values
- implement support for struct/class return values
A refactoring in the code that handles return values was also performed, to make it possible to handle structs without repeating (when possible) code that handles its fields.
There was also an issue with CreateInstance(), that only created an instance in the first time it was called and then cached it in a static var. When restarting a process under LLDB's control, the ABI's process weak pointer would become null, and using it would result in a segmentation fault. This issue became more evident after the latest changes to PPC64 plugin, that now uses the process pointer to get the target byte order, making LLDB to seg fault when restarting a program. This was fixed by making CreateInstance() to always create a new ABI instance.
All of LLDB's ReturnValue tests are passing for PPC64le now. It should work for PPC64be too, although this was not tested.
Reviewers: labath, clayborg
Reviewed By: labath
Subscribers: lbianc, anajuliapc, llvm-commits, alexandreyy, nemanjai, kbarton
Differential Revision: https://reviews.llvm.org/D42468
Patch by Leandro Lupori <leandro.lupori@gmail.com>.
llvm-svn: 325324
Summary:
Due to in-tree builds, we were parallelizing the tests at the directory
level. Now that the tests are built out-of-tree, we can remove this
limitation and paralelize at file level instead.
This decreases test suite time by about 10% for me, which is not
world-shattering, but it makes the code slightly simpler and will also
allow us to merge tests which were artificially spread over multiple
folders (TestConcurrentEvents...) to work-around this limitation.
To make this work, I've also needed to include the test file name in the
build directory name, as just the test method name is not unique enough
(plenty of tests have a test method called "test" or similar).
While doing this, I've found a couple of tests that are taking waaay longer then
they ought to (TestBreakpointCaseSensitivity -- 90 seconds), which I plan to
look into in the future.
Reviewers: aprantl
Subscribers: lldb-commits
Differential Revision: https://reviews.llvm.org/D43335
llvm-svn: 325322
Summary:
All the tests pass without hitting the situation mentioned in the FIXME, so,
per Aaron Smith's suggestion, this case will now return unconditionally.
Subscribers: sanjoy, mgorny, JDevlieghere
Differential Revision: https://reviews.llvm.org/D43215
llvm-svn: 325188
Summary:
LLDB doesn't use this code, the code has no tests, and the code does suspicious
things like hashing pointers to strings instead of the strings themselves.
Subscribers: sanjoy, mgorny, JDevlieghere
Differential Revision: https://reviews.llvm.org/D43202
llvm-svn: 324925
This test uses XML packets, but libxml is an optional dependency of
lldb, and this test fails if it is not present.
I'm leaving this enabled on mac, as thats the only platform that's
likely to have libxml always available, but ideally we should have a way
to skip this based on build configuration. I'll see if I can whip
something like that up soon, but for the time being, this unblocks the
buildbots.
llvm-svn: 324870
arch incompat with spec in file so it's rejected and the test fails.
will look into this later, will be a test case issue not a test issue;
test case may only be valid when lldb is built for/running on an x86_64
system.
llvm-svn: 324795
This patch makes LLDB's clang module cache path customizable via
settings set target.clang-modules-cache-path <path> and uses it in the
LLDB testsuite to reuse the same location inside the build directory
for LLDB and clang.
Differential Revision: https://reviews.llvm.org/D43099
llvm-svn: 324775
This only worked on MacOS, which now ships a newer version of
python without this bug. As such, we don't leak the fd, and
this test is not needed anymore (as it also hardcoded the python
version in the check).
llvm-svn: 324743
Summary:
Right now the test client is not parsing register values correctly,
which is manifesting itself in one test failing on 32-bit architectures
(pr36013). This parses the information from the qRegisterInfo packets
and stores it in the client, which will enable fixing the parsing in a
follow up commit.
I am also adding a new templated SendMessage overload, which enables one
to send a message get a parsed response in a single call.
Reviewers: eugene, davide
Subscribers: lldb-commits
Differential Revision: https://reviews.llvm.org/D43076
llvm-svn: 324722
Summary:
This is combination of following changes,
- Resolve function symbols in PDB symbol file. `lldb-test symbols` will display information about function symbols.
- Implement SymbolFilePDB::FindFunctions methods. On lldb console, searching function symbol by name and by regular expression are both available.
- Create lldb type for PDBSymbolFunc.
- Add tests to check whether functions with the same name but from different sources can be resolved correctly.
Reviewers: zturner, lldb-commits
Reviewed By: zturner
Subscribers: amccarth, labath, llvm-commits
Differential Revision: https://reviews.llvm.org/D42443
llvm-svn: 324707
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
Summary:
The test was trying to reproduce a bug in handling of two concurrent
events, which was impossible to do reliably in a black-box style test.
In practice, this meant the test was only ever failing on remote
targets, as these were slow enough to trigger this.
Fortunately, we now have the ability to mock the server side of the
connection, which means we can simulate the failure deterministically,
so I rewrite the test to use the new gdb-client framework.
I've needed to add a couple of new packets to the mock server to be able
to do this. Instead of trying to guess how a "typical" gdb-client test
will want to handle this, I throw an exception in the implementation to
force the user to override them (the packets are only sent if the test
explicitly performs some action which will trigger them, so a basic test
which e.g. does not need the "continue" functionality will not need to
implement them).
Reviewers: owenpshaw
Subscribers: srhines, lldb-commits
Differential Revision: https://reviews.llvm.org/D42959
llvm-svn: 324590
Summary:
LLDB_TEST_COMPILER is not a valid option for CMake for LLDB. There are instead two properties LLDB_TEST_C_COMPILER and LLDB_TEST_CXX_COMPILER. Update the documents accordingly to reflect the correct information.
Reviewers: zturner, lldb-commits
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D43061
llvm-svn: 324564
Summary:
This is a small change towards running the LLDB unit tests on Windows (still WIP).
Builds that use make do not point to specific configurations. However, builds with multiple configurations such as Visual Studio on Windows need the configuration (release/debug/etc) as part of the path so the binaries produced by clang are placed in the correct directory for the configuration.
Reviewers: zturner, lldb-commits, labath
Reviewed By: labath
Subscribers: labath, mgorny, hintonda, llvm-commits
Differential Revision: https://reviews.llvm.org/D42990
llvm-svn: 324555
The change in r324488 dropped the existing category attribute in for
instance methods. This patch corrects that.
Differential revision: https://reviews.llvm.org/D43024
llvm-svn: 324492
Inlined tests have a test function that is actually an instance method,
which requires a slightly different approach when it comes to setting
the category attribute. The attribute must be set on the actual
function, rather than on a particular instance.
llvm-svn: 324488
SPI call to to find its own shared cache's UUID. On newer sytems we
need to use the a new SPI which will return the UUID directly.
<rdar://problem/36625871>
llvm-svn: 324437
Now incorrect type argument that looks like T<A><B> doesn't
cause an assert, but just a parsing error.
Bug: 36224
Differential Revision: https://reviews.llvm.org/D42939
llvm-svn: 324380
This patch creates a <test>.dwarf, <test>.dwo, etc., build directory for each testcase variant.
Most importantly, this eliminates the need for the per-test lock file in the source directory.
Tests that are marked as NO_DEBUG_INFO_TESTCASE and build with
buildDefault() are built in a <test>.default build directory.
Differential Revision: https://reviews.llvm.org/D42763
llvm-svn: 324368
Davide pointed out this would be useful if the file ever needs to be
regenerated (and I certainly agree).
I also replace the test binary with a slightly smaller one -- I intended
to do this in the original commit, but I forgot to add it to the patch
as I was juggling several things at the same time.
llvm-svn: 324256
ObjectFileELF::GetModuleSpecifications contained a lot of tip-toing code
which was trying to avoid loading the full object file into memory. It
did this by trying to load data only up to the offset if was accessing.
However, in practice this was useless, as 99% of object files we
encounter have section headers at the end, so we would load the whole
file as soon as we start parsing the section headers.
In fact, this would break as soon as we encounter a file which does
*not* have section headers at the end (yaml2obj produces these), as the
access to .strtab (which we need to get the section names) was not
guarded by this offset check.
As this strategy was completely ineffective anyway, I do not attempt to
proliferate it further by guarding the .strtab accesses. Instead I just
lead the full file as soon as we are reasonably sure that we are indeed
processing an elf file.
If we really care about the load size here, we would need to reimplement
this to just load the bits of the object file we need, instead of
loading everything from the start of the object file to the given
offset. However, given that the OS will do this for us for free when
using mmap, I think think this is really necessary.
For testing this I check a (tiny) SO file instead of yaml2obj-ing it
because the fact that they come out first is an implementation detail of
yaml2obj that can change in the future.
llvm-svn: 324254
Summary:
We cannot call process_up->SetState() inside
the NativeProcessNetBSD::Factory::Launch
function because it triggers a NULL pointer
deference.
The generic code for launching a process in:
GDBRemoteCommunicationServerLLGS::LaunchProcess
sets the m_debugged_process_up pointer after
a successful call to m_process_factory.Launch().
If we attempt to call process_up->SetState()
inside a platform specific Launch function we
end up dereferencing a NULL pointer in
NativeProcessProtocol::GetCurrentThreadID().
Use the proper call process_up->SetState(,false)
that sets notify_delegates to false.
Sponsored by <The NetBSD Foundation>
Reviewers: labath, joerg
Reviewed By: labath
Subscribers: lldb-commits
Differential Revision: https://reviews.llvm.org/D42868
llvm-svn: 324234
We've had a bug (fixed by https://reviews.llvm.org/D42828) where the
thread name was being read incorrectly. Add a test for this behavior.
llvm-svn: 324230
This test was marked as an expected failure because of PR20231 but it
seems to consistently result in an unexpected success across the bots.
Let's try to re-enable this test again.
llvm-svn: 324227
Summary:
This changes the way we store the debug info variant to make it
available earlier in the test bringup: instead of it being set by the
test wrapper method, it is set as a *property* of the wrapper method.
This way, we can inspect it as soon as self.testMethodName is
initialized. The retrieval is implemented by a new function
TestBase.getDebugInfo(), and all that's necessary to make it work is to
change self.debug_info into self.getDebugInfo().
While searching for debug_info occurences i noticed that TestLogging is
being replicated for no good reason, so I removed the replication there.
Reviewers: aprantl, jingham
Subscribers: eraman, JDevlieghere, lldb-commits
Differential Revision: https://reviews.llvm.org/D42836
llvm-svn: 324226
I have found LLDB cannot find separate debug info of Fedora /usr/bin/gdb.
It is because:
lrwxrwxrwx 1 root root 14 Jan 25 20:41 /usr/bin/gdb -> ../libexec/gdb*
-rwxr-xr-x 1 root root 10180296 Jan 25 20:41 /usr/libexec/gdb*
ls: cannot access '/usr/lib/debug/usr/bin/gdb-8.0.1-35.fc27.x86_64.debug': No such file or directory
-r--r--r-- 1 root root 29200464 Jan 25 20:41 /usr/lib/debug/usr/libexec/gdb-8.0.1-35.fc27.x86_64.debug
FYI that -8.0.1-35.fc27.x86_64.debug may look confusing, it was always just
.debug before.
Why is /usr/bin/gdb a symlink is offtopic for this bugreport, Fedora has it so
for some reasons.
It is always safest to look at the .debug file only after resolving all
symlinks on the binary file.
Differential revision: https://reviews.llvm.org/D42853
llvm-svn: 324224
I have found the lookup by build-id
(when lookup by /usr/lib/debug/path/name/exec.debug failed) does not work as
LLDB tries the build-id hex string in uppercase but Fedora uses lowercase.
xubuntu-16.10 also uses lowercase during my test:
/usr/lib/debug/.build-id/6c/61f3566329f43d03f812ae7057e9e7391b5ff6.debug
Differential revision: https://reviews.llvm.org/D42852
llvm-svn: 324222
into a std::string so we don't run off the end of the array when
there is no nul byte in ProcessElfCore::parseLinuxNotes.
Found with ASAN testing.
<rdar://problem/37134319>
Differential revision: https://reviews.llvm.org/D42828
llvm-svn: 324156
LLDB queries Spotlight to locate .dSYM bundles based on the UUID
embedded in a binary, and because the UUID is a hash of filename and
.text section, there *will* be conflicts inside $BUILD_DIR.
This should fix the broken green dragon bots.
llvm-svn: 324019
Remove obsolete measurements.
This check in requires at least 10.11
Reviewed: Jason Molenda, Jim Ingham
<rdar://problem/37047106> Xcode Memory gauge should show the jetsam ledger footprint rather than anonymous
llvm-svn: 324013
Using the "run_to_{source,name}_breakpoint will allow us to remove
a lot of boiler-plate from the testsuite. We mostly use source
breakpoints, but some tests use by name ones so this was needed.
llvm-svn: 324010
The mock server was sending acks back in response to spurious acks from
the client, but the client was not prepared to handle these. Most of the
time this would work because the only time the client was sending
unsolicited acks is after the initial connection, and there reply-ack
would get ignored in the "flush all packets from the server" loop which
came after the ack. However, this loop had only a 10ms delay, and
sometimes this was not enough to catch the reply (which meant the
connection got out of sync, and test failed).
Since this behavior not consistent with how lldb-server handles this
situation (it just ignores the ack), I fix the mock server to do the
same.
llvm-svn: 323953
We started passing the "all" target to make, which rendered the
"localall" trick in this Makefile inoperable.
I implement the strip step differently, and also reformat the Makefile.
llvm-svn: 323855
Initialize the default value of SymbolFileDWARF uuid with
the appropriately shifted DW_INVALID_OFFSET constant.
This change fixes the collision in the computation of DIE uid
(inside DIERef::GetUID) and incorrect CompileUnit lookup
(because of the misleading cu_offset value).
Test plan: make check-lldb
Differential revision: https://reviews.llvm.org/D42563
llvm-svn: 323832
Strings which contain garbage data can trigger an exception in the XUnit
plugin at the UTF-8 decode step because the decode is strict. Use a lax
mode to avoid an exception.
See: https://ci.swift.org/job/oss-lldb-incremental-osx/780
llvm-svn: 323817
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
Summary:
The difference between this and regular LLDB_LOG is that this one clears
the error object unconditionally. This was inspired by the
ObjectFileELF bug (r322664), where the error object was being cleared
only if logging was enabled.
Reviewers: davide, zturner, jingham, clayborg
Subscribers: lldb-commits, emaste
Differential Revision: https://reviews.llvm.org/D42182
llvm-svn: 323753
The logic was incorrect because on windows, we need to look for
yaml2obj.EXE. I implement the search in terms of
distutils.spawn.find_executable, which should handle the platform
differences for us.
llvm-svn: 323744
Fix the Linux plugin lookup path to include appropriate libdir suffix
for the system. To accomplish this, store the value of
LLVM_LIBDIR_SUFFIX in lldb/Host/Config.h as LLDB_LIBDIR_SUFFIX,
and use this variable when defining the plugin path.
Differential Revision: https://reviews.llvm.org/D42317
llvm-svn: 323673
`num_args` is unsigned integer, declared as below:
```
uint32_t num_args = arg_enum->getChildCount();
```
Comparison with the signed `arg_idx` produces a warning when compiled with
-Wsign-compare flag, this patch addresses this simple issue without affecting
any functionality.
Reviewers: davide, asmith
Subscribers: lldb-commits
Differential Revision: https://reviews.llvm.org/D42620
llvm-svn: 323645
Summary:
The ObjectFile class was used to determine the architecture of a running
process by inspecting it's main executable. There were two issues with
this:
- it's in the wrong layer
- the call can be very expensive (it can end up computing the crc of the
whole file).
Since the process is running on the host, ideally we would be able to
just query the data straight from the OS like darwin does, but there
doesn't seem to be a reasonable way to do that. So, this fixes the
layering issue by using the llvm object library to inspect the file.
Since we know the process is already running on the host, we just need
to peek at a few bytes of the elf header to determine whether it's 32-
or 64-bit (which should make this faster as well).
Pretty much the same logic was implemented in
NativeProcessProtocol::ResolveProcessArchitecture, so I delete this
logic and replace calls with GetProcessInfo.
Reviewers: eugene, krytarowski
Subscribers: mgorny, hintonda, lldb-commits
Differential Revision: https://reviews.llvm.org/D42488
llvm-svn: 323637
Summary:
Adds new utilities that make it easier to write test cases for lldb acting as a client over a gdb-remote connection.
- A GDBRemoteTestBase class that starts a mock GDB server and provides an easy way to check client packets
- A MockGDBServer that, via MockGDBServerResponder, can be made to issue server responses that test client behavior.
- Utility functions for handling common data encoding/decoding
- Utility functions for creating dummy targets from YAML files
----
Split from the review at https://reviews.llvm.org/D42145, which was a new feature that necessitated the new testing capabilities.
Reviewers: clayborg, labath
Reviewed By: clayborg, labath
Subscribers: hintonda, davide, jingham, krytarowski, mgorny, lldb-commits
Differential Revision: https://reviews.llvm.org/D42195
Patch by Owen Shaw <llvm@owenpshaw.net>
llvm-svn: 323636
Now the function returns `False`, and the caller can take the
appropriate action (in this case, for --executable, reporting
that the file doesn't exist).
llvm-svn: 323566
TestLibcxxListLoop - fails because the evil "define private public"
trick does not work with gmodules. The purpose of the test is not to
test debug info parsing so I just mark it as no_debug_info_testcase.
In the long term it may be interesting to write a mock std::list which
will allow us to test bad inputs to data formatters more easily.
TestGModules - seems to be a genuine bug. Filed pr36107 and xfailed.
llvm-svn: 323520
This test #include's stdio.h, which, on at least two bots results in a
module import of MacTypes.h (due to weird SDK layering issues), which
causes the test to fail to compile.
Just don't #include stdio.h, as it's not needed for the test.
llvm-svn: 323467
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
Summary:
- Fix a null array access bug. This happens when creating the lldb type for a function that has no argument.
- Implement SymbolFilePDB::ParseTypes method. Using `lldb-test symbols` will show all supported types in the target.
- Create lldb types for variadic function, PDBSymbolTypePointer, PDBSymbolTypeBuiltin
- The underlying builtin type for PDBSymbolTypeEnum is always `Int`, correct it with the very first enumerator's encoding if any. This is more accurate when the underlying type is not signed or another integer type.
- Fix a bug when the compiler type is not created based on PDB_BuiltinType. For example, basic type `long` is of same width as `int` in a 32-bit target, and the compiler type of former one will be represented by the one generated for latter if using the default method. Introduce a static function GetBuiltinTypeForPDBEncodingAndBitSize to correct this issue.
- Basic type `long double` and `double` have the same bit size in MSVC and there is no information in a PDB to distinguish them. The compiler type of the former one is represented by the latter's.
- There is no line information about typedef, enum etc in a PDB and the source and line information for them are not shown.
- There is no information about scoped enumeration. The compiler type is represented as an unscoped one.
Reviewers: zturner, lldb-commits
Reviewed By: zturner
Subscribers: majnemer, llvm-commits
Differential Revision: https://reviews.llvm.org/D42434
llvm-svn: 323255
Summary: The GoParser is leaking memory in the tests due to not freeing allocated nodes when encountering some parsing errors. With this patch all GoParser tests are passing with enabled memory sanitizers/ubsan.
Reviewers: labath, davide
Reviewed By: labath
Subscribers: lldb-commits
Differential Revision: https://reviews.llvm.org/D42409
llvm-svn: 323197
Summary:
It's possible to hit an unaligned memory read when reading `source_length` as the `data` array is only aligned with 2 bytes (it's actually a UTF16 array). This patch memcpy's `source_length` into a local variable to prevent this:
```
MinidumpTypes.cpp:49:23: runtime error: load of misaligned address 0x7f0f4792692a for type 'const uint32_t' (aka 'const unsigned int'), which requires 4 byte alignment
```
Reviewers: dvlahovski, zturner, davide
Reviewed By: davide
Subscribers: davide, lldb-commits
Differential Revision: https://reviews.llvm.org/D42348
llvm-svn: 323181
building method override tables for CXXMethodDecls in
DWARFASTParserClang::CompleteTypeFromDWARF.
C++ virtual method calls in LLDB expressions may fail if the override table for
the method being called is not correct as IRGen will produce references to the
wrong (or a missing) vtable entry.
This patch does not fix calls to virtual methods with covariant return types as
it mistakenly treats these as overloads, rather than overrides. This will be
addressed in a future patch.
Review: https://reviews.llvm.org/D41997
Partially fixes <rdar://problem/14205774>
llvm-svn: 323163
Summary: We can't use unique_ptr's here because we use those variables as `out` parameters to some functions. Discovered by the memory sanitizer.
Subscribers: lldb-commits
Differential Revision: https://reviews.llvm.org/D42386
llvm-svn: 323138
Summary:
`m_last_tok` isn't initialized anywhere before it's used the first time (most likely in the `GoParser::Rule::error` method), which causes most of the GoParser tests to fail with sanitizers enabled with errors like this:
```
GoParser.cpp:52:21: runtime error: load of value <random value>, which is not a valid value for type 'GoLexer::TokenType'
UndefinedBehaviorSanitizer: undefined-behavior GoParser.cpp:52:21
```
Reviewers: ribrdb, davide, labath
Reviewed By: labath
Subscribers: labath, lldb-commits
Differential Revision: https://reviews.llvm.org/D42339
llvm-svn: 323119
Summary:
This patch implements the ABI Plugin for PPC64le. It was based on the
ABI for PPC64. It also enables LLDB to evaluate expressions using JIT.
Reviewers: labath, clayborg, jhibbits, davide
Reviewed By: labath, clayborg, jhibbits, davide
Subscribers: davide, JDevlieghere, chmeee, emaste, jhibbits, hfinkel, lldb-commits, nemanjai, luporl, lbianc, mgorny, anajuliapc, kbarton
Differential Revision: https://reviews.llvm.org/D41702
Patch by Alexandre Yukio Yamashita <alexandre.yamashita@eldorado.org.br>
llvm-svn: 323100
Summary:
We copy the local variable `Resolved` into `Storage` to keep it around. However, we then still let the `SearchDir` ref point to `Resolved` which then is used to access the already freed memory later on. With this patch we point to `Storage` which doesn't get deleted after the current scope exits.
Discovered by memory sanitizer in the CompletionTest.DirCompletionUsername test.
Reviewers: zturner
Subscribers: lldb-commits
Differential Revision: https://reviews.llvm.org/D42346
llvm-svn: 323082
Summary: float can't represent the given value in the literal, so we get this UB error: `runtime error: 1.23457e+48 is outside the range of representable values of type 'float'`. The test seems to not rely on this specific value, so let's just choose a smaller one that can be represented.
Reviewers: uweigand
Subscribers: lldb-commits
Differential Revision: https://reviews.llvm.org/D42338
llvm-svn: 323081
Summary: We never delete the created instances, so those test fail with the memory sanitizer.
Reviewers: jasonmolenda
Reviewed By: jasonmolenda
Subscribers: aemerson, javed.absar, kristof.beyls, lldb-commits
Differential Revision: https://reviews.llvm.org/D42336
llvm-svn: 323076
Clean up needless+missing #include "DWARFCompileUnit.h" for split of
DWARFCompileUnit to DWARFUnit as discussed in D40466.
Differential revision: https://reviews.llvm.org/D42355
llvm-svn: 323069
Summary:
This patch adds missing includes to the LLDB headers inside `include/` as a first step of building LLDB's source with C++ modules. It also fixes this single `stds::` typo.
Some quick map why some non-obvious includes were necessary:
* lldb/lldb-defines.h for LLDB_INVALID_ADDRESS
* lldb/lldb-types.h for addr_t
* lldb/lldb-defines.h for DISALLOW_COPY_AND_ASSIG
* lldb/DataFormatters/TypeSynthetic.h for SyntheticChildrenFrontEnd
Reviewers: aprantl
Reviewed By: aprantl
Subscribers: zturner, lldb-commits
Differential Revision: https://reviews.llvm.org/D42340
llvm-svn: 323064
Summary:
- Fix a null array access bug. This happens when creating the lldb type for a function that has no argument.
- Implement SymbolFilePDB::ParseTypes method. Using `lldb-test symbols` will show all supported types in the target.
- Create lldb types for variadic function, PDBSymbolTypePointer, PDBSymbolTypeBuiltin
- The underlying builtin type for PDBSymbolTypeEnum is always `Int`, correct it with the very first enumerator's encoding if any. This is more accurate when the underlying type is not signed or another integer type.
- Fix a bug when the compiler type is not created based on PDB_BuiltinType. For example, basic type `long` is of same width as `int` in a 32-bit target, and the compiler type of former one will be represented by the one generated for latter if using the default method. Introduce a static function GetBuiltinTypeForPDBEncodingAndBitSize to correct this issue.
- Basic type `long double` and `double` have the same bit size in MSVC and there is no information in a PDB to distinguish them. The compiler type of the former one is represented by the latter's.
- There is no line informaton about typedef, enum etc in a PDB and the source and line information for them are not shown.
- There is no information about scoped enumeration. The compiler type is represented as an unscoped one.
Reviewers: zturner, lldb-commits, davide, asmith
Reviewed By: zturner, asmith
Subscribers: llvm-commits, davide
Differential Revision: https://reviews.llvm.org/D41427
llvm-svn: 322995
Summary:
These were used by Host::LaunchProcess to "resolve" the executable it
was about to launch. The only parts of Platform::ResolveExecutable, which
seem to be relevant here are the FileSpec::ResolvePath and
ResolveExecutableLocation calls.
The rest (most) of that function deals with selecting an architecture
out of a fat binary and making sure we are able to create a Module with that
slice. These are reasonable actions when selecting a binary to debug,
but not for a generic process launching framework (it's technically even
wrong because we should be able to launch a binary with execute
permissions only, but trying to parse such file will obviously fail).
I remove the platform call by inlining the relevant FileSpec calls and
ignoring the rest of the Platform::ResolveExecutable code. The
architecture found by the slice-searching code is being ignored already
anyway, as we use the one specified in the LaunchInfo, so the only
effect of this should be a different error message in case the
executable does not contain the requested architecture -- before we
would get an error message from the Platform class, but now we will get
an error from the actual posix_spawn syscall (this is only relevant on
mac, as it's the only target supporting fat binaries).
Launching targets for debugging should not be affected as here the
executable is pre-resolved at the point when the Target is created.
Reviewers: jingham, clayborg
Subscribers: lldb-commits, emaste
Differential Revision: https://reviews.llvm.org/D41902
llvm-svn: 322935
Refactor in r322653 broke the logging test on windows because MSVC uses
a fully qualified name as the value of __FUNCTION__, which is not what
we were expecting. I'm changing the code to use the more portable
__func__, which behaves the same as on clang/gcc.
The standard still says that the value of __func__ is implementation
defined, so if we run into problems with this test again we may just
need to drop it.
llvm-svn: 322834
On Darwin, if a test machine isn't set up for code-signing (see
docs/code-signing.txt), running check-lldb should use the system
debugserver instead of the unsigned one built in-tree. This makes it
possible to run lldb's test suite without having code-signing set up,
which is really convenient.
Differential Revision: https://reviews.llvm.org/D42215
llvm-svn: 322803
Due to an unfortunate difference between the open source test harness
and our internal harness, applying two @skip... decorators to this test
works in the internal build but not in the open source build.
I've tried another approach to skipping this test and tested it out with
the open source harness. Hopefully this sticks!
rdar://36417163
llvm-svn: 322756
This test frequently times out on our bots. While we're investigating
the issue, mark the test as skipped so the builds aren't impacted as
much.
rdar://36417163
llvm-svn: 322728
Summary:
LLDB's DumpDataExtractor was not prepared to handle PowerPC's long double type: PPCDoubleDouble.
As it is somewhat special, treating it as other regular float types resulted in getting wrong information about it.
In this particular case, llvm::APFloat::getSizeInBits(PPCDoubleDouble) was returning 0.
This caused the TestSetValues.py test to fail, because lldb would abort on an assertion failure on APInt(), because of the invalid size.
Since in the PPC case the value of item_byte_size was correct and the
getSizeInBits call was only added to support x87DoubleExtended
semantics, this restricts the usage of getSizeInBits to the x87
semantics.
Reviewers: labath, clayborg
Reviewed By: labath
Subscribers: llvm-commits, anajuliapc, alexandreyy, lbianc, lldb-commits
Differential Revision: https://reviews.llvm.org/D42083
Author: Leandro Lupori <leandro.lupori@gmail.com>
llvm-svn: 322666
In D40616 I (mistakenly) assumed that logging an llvm::Error would clear
it. This of course is only true if logging is actually enabled.
This fixes the assertion by manually clearing the error, but it raises
the point of whether we need a special error-clearing logging primitive.
llvm-svn: 322664
This removes boilerplate for setting up a log channel and capturing the
output from some of the tests. I do this by moving the setup code into a
test fixture and adding a logAndTakeOutput utility function to log some
string and then retrieve it from the log.
I also use some googlemock goodies to simplify a couple of assertions.
llvm-svn: 322653
The comment seems to indicate that this function would return the "bin"
directory on linux. I've verified that this is not the case, so I'm
updating the comment to match.
llvm-svn: 322472
Summary:
This commit is a combination of the following changes:
- Cache PDB's global scope (executable) in SymbolFilePDB
- Change naming of `cu` to `compiland` which is PDB specific
- Change ParseCompileUnitForSymIndex to ParseCompileUnitForUID.
Prefer using a common name `UID` instead of PDB's `System Index`
Adding one more argument `index` to this method, which is used to
specify the index of the compile unit in a cached compile unit array
- Add GetPDBCompilandByUID method to simply code
- Fix a bug in getting the source file name for a PDB compiland.
For some reason, PDBSymbolCompiland::getSourceFileName() could
return an empty name, so if that is true, we have to walk through all
source files of this compiland and determine the right source file
used to generate this compiland based on language indicated.
The previous implementation called PDBSession::findOneSourceFile
method to get its name for the compiland. This is not accurate since
the `one source file` found could be a header other than source file.
Reviewers: zturner, lldb-commits
Reviewed By: zturner
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D41428
llvm-svn: 322433
of a dSYM per-uuid plist that may be present (dsymutil does not
create this plist, it is only added after the fact by additional
tools) -- either the DBGBuildSourcePath + DBGSourcePath pair of
k-v entries which give us the build-time and debug-time remapping,
or the newer DBGSourcePathRemapping dictionary which may give us
multiple remappings.
I'm changing the order that we process these & add them to the
list of source remappings. If the DBGSourcePathRemapping dict
is present, it should be the first entries we will try.
<rdar://problem/36481989>
llvm-svn: 322418
RemoveInvalidLocations was clearing out the m_locations in the
breakpoint by hand, and it wasn't also clearing the locations from
the address->location map, which confused us when we went to update
breakpoint locations.
I also made Breakpoint::ModulesChanged check the Location's Section
to make sure it hadn't been deleted. This shouldn't strictly be necessary,
but if the DynamicLoaderPlugin doesn't do it's job right (I'm looking at
you new Darwin DynamicLoader...) then it can end up leaving stale locations
on rerun. It doesn't hurt to clean them up here as a backstop.
<rdar://problem/36134350>
llvm-svn: 322348
This test stresses expression evaluation support for template functions.
Currently the support is rudimentary, and running this test causes assertion
failures in clang. This test cannot be XFAIL'ed because the test harness
treats assertion failures as unexpected events. For now, the test must be
skipped.
llvm-svn: 322340
been specified yet (either by the user, or by one of the lldb
extensions like qHostInfo or qProcessInfo), and the target.xml
includes a <architecture> tag specifying x86_64, set the architecture
appropriately.
I'm not sure what we can expect to see in the <architecture> tag, so
I'm only doing this for x86_64 right now where I've seen "i386:x86_64"
used. I've seen a target.xml from a jtag board that sends just "arm"
because it doesn't know more specifically what type of board it is
connected to...
<rdar://problem/29908970>
llvm-svn: 322339
Summary:
Actually, fix two issues:
# remove repeat creation of reg_info, use m_reg_info_ap for createMCAsmInfo instead;
# remove possibility to dereference nullptr during createMCAsmInfo invocation, that could lead to undefined behavior.
Placed checking of a component right after its creation to simplify the code and avoid same issues later.
Reviewers: zturner, clayborg, jingham, jasonmolenda, labath
Reviewed By: clayborg, labath
Subscribers: labath, lldb-commits
Differential Revision: https://reviews.llvm.org/D41584
llvm-svn: 322270
When rendezvous structure is not initialized we need to set up
rendezvous breakpoint anyway. In this case the code will locate
dynamic loader (interpreter) and look for known function names.
This is r322209, but with fixed VDSO loading fixed.
Bug: https://bugs.llvm.org/show_bug.cgi?id=25806
Differential Revision: https://reviews.llvm.org/D41533
llvm-svn: 322251
from being listed as a part of the desktop or
desktop/desktop_no_xpc Targets - they should not be
a part of any target. Having them listed as a part of
desktop target results in them being added to the
Copy Files build phase for desktop and I'm guessing
they'd end up in the manpage directory or something.
llvm-svn: 322237
When rendezvous structure is not initialized we need to set up
rendezvous breakpoint anyway. In this case the code will locate
dynamic loader (interpreter) and look for known function names.
Bug: https://bugs.llvm.org/show_bug.cgi?id=25806
Differential Revision: https://reviews.llvm.org/D41533
llvm-svn: 322209
Summary:
Gdb servers like openocd may send many $O reply packets for the client to output during a qRcmd command sequence. Currently, lldb interprets the first O packet as an unexpected response. Besides generating no output, this causes lldb to get out of sync with future commands because it continues reading O packets from the first command as response to subsequent commands.
This patch handles any O packets during an qRcmd, treating the first non-O packet as the true response.
Preliminary discussion at http://lists.llvm.org/pipermail/lldb-dev/2018-January/013078.html
Reviewers: clayborg
Reviewed By: clayborg
Subscribers: labath, lldb-commits
Differential Revision: https://reviews.llvm.org/D41745
Patch by Owen Shaw <llvm@owenpshaw.net>
llvm-svn: 322190
the previous fix did not work because of different const qualifications
on the envp pointer.
This should resolve that (and remove a couple of const_casts in the
process).
llvm-svn: 322187
Summary:
There was some confusion in the code about how to represent process
environment. Most of the code (ab)used the Args class for this purpose,
but some of it used a more basic StringList class instead. In either
case, the fact that the underlying abstraction did not provide primitive
operations for the typical environment operations meant that even a
simple operation like checking for an environment variable value was
several lines of code.
This patch adds a separate Environment class, which is essentialy a
llvm::StringMap<std::string> in disguise. To standard StringMap
functionality, it adds a couple of new functions, which are specific to
the environment use case:
- (most important) envp conversion for passing into execve() and likes.
Instead of trying to maintain a constantly up-to-date envp view, it
provides a function which creates a envp view on demand, with the
expectation that this will be called as the very last thing before
handing the value to the system function.
- insert(StringRef KeyEqValue) - splits KeyEqValue into (key, value)
pair and inserts it into the environment map.
- compose(value_type KeyValue) - takes a map entry and converts in back
into "KEY=VALUE" representation.
With this interface most of the environment-manipulating code becomes
one-liners. The only tricky part was maintaining compatibility in
SBLaunchInfo, which expects that the environment entries are accessible
by index and that the returned const char* is backed by the launch info
object (random access into maps is hard and the map stores the entry in
a deconstructed form, so we cannot just return a .c_str() value). To
solve this, I have the SBLaunchInfo convert the environment into the
"envp" form, and use it to answer the environment queries. Extra code is
added to make sure the envp version is always in sync.
(This also improves the layering situation as Args was in the Interpreter module
whereas Environment is in Utility.)
Reviewers: zturner, davide, jingham, clayborg
Subscribers: emaste, lldb-commits, mgorny
Differential Revision: https://reviews.llvm.org/D41359
llvm-svn: 322174
Summary:
This used to be important when all tests were run in a single process,
but that has no longer been the case for a while. Furthermore, this hook fails
to build on new mac versions for several people, and it's not clear
whether fixing it is worth the effort.
Reviewers: jingham, clayborg, davide
Subscribers: lldb-commits
Differential Revision: https://reviews.llvm.org/D41871
llvm-svn: 322167
(built with Xcode) from 10.9 to 10.11. It also enables the use of
libcompression in debugserver by default (these API are only present
in macOS 10.11 and newer -- 10.11 was released c. Sep 2015).
I don't know if we have people / bots building lldb on older mac
releases; if this turns out to be a problem I will revert the change.
There are some parts of lldb (e.g. debugserer's ability to report
the OS version #) that only work with 10.10 and this changes the
behavior of lldb (whether the older or newer dyld interfaces are
used) so there is some importance to updating the min required
version.
llvm-svn: 322128
The HAVE_LIBZ variable is not exported by LLVM, and therefore is not
available in stand-alone builds of other tools. Use LLVM_ENABLE_ZLIB
which is the name under which the effective value is exported.
Additional, use llvm_canonicalize_cmake_booleans() to make sure that
a correct (Python-safe) boolean value is passed down to lit.
Differential Revision: https://reviews.llvm.org/D41725
llvm-svn: 322081
Use full PATH when looking up test tools rather than just llvm tools
directory. r320813 has added a lookup for 'lldb-test' which is part
of LLDB tools rather than LLVM, and therefore is not present
in llvm_tools_dir before LLDB is installed.
While technically we could introduce separate per-directory lookup
logic, there is no real reason not to use the PATH formed earlier here,
and this is what other tools are doing.
Differential Revision: https://reviews.llvm.org/D41726
llvm-svn: 321932
This fixes a bug in -gmodules DWARF handling when debugging without a .dSYM bundle
that was particularly noticable when debugging LLVM itself.
Debugging without clang modules and DWO handling should be unaffected by this patch.
<rdar://problem/32436209>
llvm-svn: 321802
Summary: D41086 fixed an exception in FindTypes()/FindTypesByRegex() and caused two lldb unit test to fail. This change updates the unit tests to pass again.
Reviewers: zturner, lldb-commits, labath, clayborg, asmith
Reviewed By: asmith
Differential Revision: https://reviews.llvm.org/D41550
llvm-svn: 321511
Summary:
Make sure we propagate environment when starting debugserver with a pre-loaded
inferior. AFAIK, RNBRunLoopLaunchInferior is only called in pre-loaded inferior
scenario, so we can just pick up the debugserver environment instead of trying
to construct an envp from the (empty) context.
This makes debugserver pass an test added for an equivalent lldb-server fix.
Reviewers: jasonmolenda, clayborg
Subscribers: JDevlieghere, lldb-commits
Differential Revision: https://reviews.llvm.org/D41352
llvm-svn: 321355
The test works fine on linux, and I believe other targets should not
have an issue with as well. If they do, we can start blacklisting
instead of whitelisting.
The idea of using "-1" as the value of the pointer on non-apple targets
backfired, as it fails the "address != LLDB_INVALID_ADDRESS" test (-1 is
the value of LLDB_INVALID_ADDRESS). However, it should be safe to use
0x100 for other targets as well. The first page of memory is generally
kept unreadable to catch null pointer dereferences.
llvm-svn: 321353
Summary:
It was possible when searching for a symbol by regex in a pdb that an invalid regex would cause an exception on Windows. This updates the code to avoid throwing an exception.
When fixing the exception it was decided there is no reason to search for a symbol in a pdb by regex. To support this, SymbolFilePDB::FindTypes() now only searches for types by name and no longer calls FindTypesByRegEx().
Reviewers: zturner, lldb-commits
Reviewed By: zturner
Subscribers: clayborg
Differential Revision: https://reviews.llvm.org/D41086
llvm-svn: 321344
an empty Python string object when it reads a 0-length
string out of memory (and a successful SBError object).
<rdar://problem/26186692>
llvm-svn: 321338
Two tests were failing because the debugger was picking up multiply
defined internal symbols from the system libraries. This is a bug, as
there should be no ambiguity because the tests are defining variables
with should shadow these symbols, but lldb is not smart enough to figure
that out.
I work around the issue by renaming the variables in these tests, and in
exchange I create a self-contained test which reproduces the issue
without depending on the system libraries.
This increases the predictability of our test suite.
llvm-svn: 321271
Summary:
We sometimes need to write to the object file we've mapped into memory,
generally to apply relocations to debug info sections. We've had that
ability before, but with the introduction of DataBufferLLVM, we have
lost it, as the underlying llvm class (MemoryBuffer) only supports
read-only mappings.
This switches DataBufferLLVM to use the new llvm::WritableMemoryBuffer
class as a back-end, as this one guarantees to return a writable buffer.
This removes the need for the "Private" flag to the DataBufferLLVM
creation functions, as it was really used to mean "writable". The LLVM
function also does not have the NullTerminate flag, so I've modified our
clients to not require this feature and removed that flag as well.
Reviewers: zturner, clayborg, jingham
Subscribers: emaste, aprantl, arichardson, krytarowski, lldb-commits
Differential Revision: https://reviews.llvm.org/D40079
llvm-svn: 321255
The recent UUID cleanups exposed a bug in the parsing code for the
jModulesInfo response, which was passing wrong value for the second
argument to UUID::SetFromStringRef (it passed the length of the string,
whereas the correct value should be the number of decoded bytes we
expect to receive).
This was not picked up by tests, because they test with 16-byte uuids,
for which the function happens to do the right thing even if the length
does not match (if the length does not match, the function does not
update m_num_uuid_bytes member, but that member is already 16 to begin
with).
I fix that and add a test with 20-byte uuid to catch if this regresses.
I have also added more safeguards into the parsing code to fail if we
cannot parse the entire uuid field we recieve. While testing the latter
part, I noticed that the "negative" jModulesInfo tests were succeeding
because we were sending malformed json (and not because the json
contents was invalid), so I make those tests a bit more robuts as well.
llvm-svn: 320985
Summary:
We were failing to propagate the environment when lldb-server was
started with a pre-loaded process
(e.g.: lldb-server gdbserver -- inferior --inferior_args)
This patch makes sure the environment is propagated. Instead of adding a
new GDBRemoteCommunicationServerLLGS::SetLaunchEnvironment function to
complement SetLaunchArgs and SetLaunchFlags, I replace these with a
more generic SetLaunchInfo, which can be used to set any launch-related
property.
The accompanying test also verifies that the server correctly terminates
the connection after sending the exit packet (specifically, that it does
not send the exit packet twice).
Reviewers: clayborg, eugene
Subscribers: lldb-commits, mgorny
Differential Revision: https://reviews.llvm.org/D41070
llvm-svn: 320984
Summary:
The x86 FPR struct was defined as a struct containing a union between
two members: XSAVE and FXSAVE. This patch makes FPR a union directly to
remove one layer of indirection when trying to access the members.
The initial layout of these two structs is identical, which is
recognised by the fact that XSAVE has FXSAVE as its first member, so we
also considered removing one more layer and leave FPR identical to XSAVE
struct, but stopped short of doing that, as the FPR may be used to store
different layouts in the future (e.g., ones generated by the FSAVE
instruction).
Reviewers: clayborg, krytarowski
Subscribers: emaste, lldb-commits
Differential Revision: https://reviews.llvm.org/D41245
llvm-svn: 320966
Summary:
lldb-server was sending the "exit" packet (W??) twice. This happened
because it was handling both the pre-exit (PTRACE_EVENT_EXIT) and
post-exit (WIFEXITED) as exit events. We had some code which was trying
to detect when we've already sent the exit packet, but this stopped
working quite a while ago.
This never really caused any problems in practice because the client
automatically closes the connection after receiving the first packet, so
the only effect of this was some warning messages about extra packets
from the lldb-server test suite, which were ignored because they didn't
fail the test.
The new test suite will be stricter about this, so I fix this issue
ignoring the first event. I think this is the correct behavior, as the
inferior is not really dead at that point, so it's premature to send the
exit packet.
There isn't an actual test yet which would verify the exit behavior, but
in my next patch I will add a test which will also test this
functionality.
Reviewers: eugene
Subscribers: lldb-commits
Differential Revision: https://reviews.llvm.org/D41069
llvm-svn: 320961
"Default" is a valid QoS for a thread on older versions of macOS,
like the one installed in the bot.
Thanks to Jason Molenda for helping me figuring out the problem.
<rdar://problem/28346273>
llvm-svn: 320883
Summary:
This makes StopReply class abstract, so that we can represent different
types of stop replies such as StopReplyStop and StopReplyExit (there
should also be a StopReplySignal, but I don't need that right now so I
haven't implemented it yet).
This prepares the ground for a new test I'm writing.
Reviewers: eugene, zturner
Subscribers: lldb-commits
Differential Revision: https://reviews.llvm.org/D41067
llvm-svn: 320820
Summary:
We use the llvm decompressor to decompress SHF_COMPRESSED sections. This enables
us to read data from debug info sections, which are sometimes compressed,
particuarly in the split-dwarf case. This functionality is only available if
llvm is compiled with zlib support.
Reviewers: clayborg, zturner
Subscribers: emaste, mgorny, aprantl, lldb-commits
Differential Revision: https://reviews.llvm.org/D40616
llvm-svn: 320813
Summary:
Adding a new test would require one to duplicate a significant part of
the existing test that we have. This attempts to reduce that by moving
some part of that code to the test fixture. The StandardStartupTest
fixture automatically starts up the server and connects it to the
client. I also add a more low-level TestBase fixture, which allows one
to start up the client and server in a custom way (I am going to need
this for the test I am writing).
Reviewers: eugene, zturner
Subscribers: lldb-commits, mgorny
Differential Revision: https://reviews.llvm.org/D41066
llvm-svn: 320809
Clang recently switched to C++14 (with GNU extensions) as the default
dialect, but LLDB didn't catch up. This causes failures as LLDB still
evaluates ObjectiveC expressions as Objective C++ using C++98 as standard.
There are things not available in C++98, including, e.g. nullptr.
In some cases Objective-C `nil` is defined as `nullptr` so this causes
an evaluation failure. Switch the default to overcome this issue
(actually, currently lldb evaluates both C++11 and C++14 as C++11,
but that seems a larger change and definitely could be re-evaluated
in the future).
No test as this is currently failing on the LLDB bots after the clang
switch (so, de facto, there's a test already for it).
This is a recommit, with a thinko fixed (the code was previously
placed incorrectly).
<rdar://problem/36011995>
llvm-svn: 320778
Clang recently switched to C++14 (with GNU extensions) as the default
dialect, but LLDB didn't catch up. This causes failures as LLDB still
evaluates ObjectiveC expressions as Objective C++ using C++98 as standard.
There are things not available in C++98, including, e.g. nullptr.
In some cases Objective-C `nil` is defined as `nullptr` so this causes
an evaluation failure. Switch the default to overcome this issue
(actually, currently lldb evaluates both C++11 and C++14 as C++11,
but that seems a larger change and definitely could be re-evaluated
in the future).
No test as this is currently failing on the LLDB bots after the clang
switch (so, de facto, there's a test already for it).
<rdar://problem/36011995>
llvm-svn: 320761
Summary:
These two functions were calling each other, while handling different
branches of the if(IsInMemory()). This had a reason at some point in the
past, but right now it's just confusing.
I resolve this by removing the MemoryMapSectionData function and
inlining the !IsInMemory branch into ReadSectionData. There isn't
anything mmap-related in this function anyway, as the decision whether
to mmap is handled at a higher level.
This is a preparatory step to make ObjectFileELF be able to decompress
compressed sections (I want to make sure that all calls reading section
data are routed through a single piece of code).
Reviewers: clayborg
Subscribers: emaste, JDevlieghere, lldb-commits
Differential Revision: https://reviews.llvm.org/D41169
llvm-svn: 320705
A similar error message is printed again in lldb-gdbserver.cpp, so the
user will see the message twice. Also, this is generic library code, we
shouldn't really be using stderr here.
llvm-svn: 320704
This is needed to ensure that the distribution and install-distribution
targets work properly.
Differential Revision: https://reviews.llvm.org/D41144
llvm-svn: 320537
I tested on x86-64 and Jason on embedded architectures.
This cleans up another couple of reported unexpected successes.
<rdar://problem/28623427>
llvm-svn: 320452
After discussing this with Jim and Jason, I think my commit was
actually sweeping the issue under the carpet rather than fixing it.
I'll take a closer look between tonight and tomorrow.
llvm-svn: 320447
Some tests are failing on macOS when building with the in-tree
clang, and this is because they're conditional on the version released.
Apple releases using a different versioning number, but as these are
conditional on clang < 7, they fail for clang ToT (which is 6.0).
As a general solution, we actually need either a mapping between
Apple internal release version and public ones.
That said, I discussed this with Fred , and Apple Clang 6.0 seems
to be old enough that we can remove this altogether (which means I
can delay implementing the general purpose solution for a bit).
Differential Revision: https://reviews.llvm.org/D41101
llvm-svn: 320444
This adds the install-*-stripped targets to LLDB, which are required for
the install-distribution-stripped option. We also need to create some
install-*-stripped targets manually, which are modeled after their
corresponding install-* targets.
Differential Revision: https://reviews.llvm.org/D41099
llvm-svn: 320443
This is the first of a series of commits aiming to improve
overall LLDB's hygiene. Feel free to shout at me in case
I break something.
<rdar://problem/30915340>
llvm-svn: 320425
Host::GetEnvironment returns a StringList, but the interface for
launching a process takes Args. The fact that we use two classes for
representing an environment is not ideal, but for now we should at least
have an easy way to convert between the two.
llvm-svn: 320366
Summary:
For ptys (at least on Linux), the end-of-file (closing of the slave FD)
is signalled by the POLLHUP flag. We were ignoring this flag, which
meant that when this happened, we would spin in a loop, continuously
calling poll(2) and not making any progress.
This makes sure we treat POLLHUP as a read event (reading will return
0), and we call the registered callback when it happens. This is the
behavior our clients expect (and is consistent with how select(2)
works).
Reviewers: eugene, beanz
Subscribers: lldb-commits
Differential Revision: https://reviews.llvm.org/D41008
llvm-svn: 320345
They cause an ubsan error when ran through the testsuite (store
to misaligned address is UB). This commit kills two birds with
one stone, as we also remove some code while fixing it.
<rdar://problem/35941757>
llvm-svn: 320335
computer. When doing kernel debugging, lldb scrapes around a few
well-known locations to find kexts and kernels. It builds up two
lists - kexts and kernels with dSYM, and kexts and kernels without dSYMs.
After both lists have failed to provide a file, then we'll call out
to things like the DebugSymbols framework to find a kext/kernel.
This meant that when you had a kext/kernel on the local computer that
did not have debug information, lldb wouldn't consult DebugSymbols etc
once it'd locked on to one of these no-debug-info binaries on the local
computer.
Reorder this so we give DebugSymbols etc a shot at finding a debug-info
file before we use any of the no-debug-info binaries that were found on
the system.
<rdar://problem/34434440>
llvm-svn: 320241
most common cases where the Xcode.app bundle puts lldb -
either as a default part of the bundle, or in a toolchain
subdirectory, so the platform subclasses can find files
relative to this directory.
Dropped support for handling the case where the lldb
framework was in /Library/PrivateFrameworks. I think
this was intended to handle the case where lldb is installed
in / (outside the Xcode.app bundle) - but in that case, we
can look in the raw directory file paths to find anything.
<rdar://problem/35285622>
llvm-svn: 320240
Fix alignment UB in some Mach exception-handling logic.
This lets us build lldb and debugserver with UBSan in trapping mode, and
get further along in the testing process before a trap is encountered.
rdar://35923991
llvm-svn: 320127
This part of lldb make use of anonymous structs and unions. The usage is
idiomatic and doesn't deserve a warning. Logic in the NSDictionary and NSSet
plugins use anonymous structs in a manner consistent with the relevant Apple
frameworks.
Differential Revision: https://reviews.llvm.org/D40757
llvm-svn: 320071
They're hidden, so all they cause is a linker warning.
ld: warning: cannot export hidden symbol
lldb::SBBreakpointNameImpl::operator==(lldb::SBBreakpointNameImpl const&) from
tools/lldb/source/API/CMakeFiles/liblldb.dir/SBBreakpointName.cpp.o
llvm-svn: 320066
Summary:
Variable::GetValuesForVariableExpressionPath was passing an
uninitialised value for the final_task_on_target argument. On my
compiler/optimization level combo, the final_task_on_target happened to
contain "dereference" in some circumstances, which produced hilarious
results. The same is true for other arguments to the
GetValueForExpressionPath call.
The correct behavior here seems to be to just omit the arguments
altogether and let the default behavior take place.
Reviewers: jingham
Subscribers: mehdi_amini, lldb-commits
Differential Revision: https://reviews.llvm.org/D40557
llvm-svn: 320021
This is a follow-up to r319840. I guess none of the systems I'd tested
on before had LLDB_SYSTEM_LIBS set, which is why I didn't see any local
errors, but I'm surprised none of the bots caught it either.
llvm-svn: 319953
A few methods in RegisterContext classes accept const objects which are
cast to a non-const thread_state_t. Drop const-ness more explicitly
where we mean to do so. This fixes a slew of warnings.
Differential Revision: https://reviews.llvm.org/D40821
llvm-svn: 319939
Null-checking functions which aren't marked weak_import is a no-op
(the compiler rewrites the check to 'true'), regardless of whether a
library providing its definition is weak-linked. If the deployment
target is greater than the minimum requirement, the availability markup
on APIs does not lower to weak_import.
Remove no-op null checks to clean up the code and silence warnings.
Differential Revision: https://reviews.llvm.org/D40812
llvm-svn: 319936
Summary: There are "FIXME"s in include/llvm/IR/DataLayout.h to remove the default arguments.
Reviewers: zturner, clayborg
Reviewed By: zturner
Subscribers: bjope
Differential Revision: https://reviews.llvm.org/D40064
llvm-svn: 319869
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
Also add a test. There should also be control for this
in ProcessLaunchInfo and a "target launch" flag, but at least
this will allow you to control it somehow.
<rdar://problem/35842137>
llvm-svn: 319731
Pavel Labath