Commit Graph

1958 Commits

Author SHA1 Message Date
Raphael Isemann
b448d1bf21 [lldb] Fix dynamic_cast by no longer failing on variable without metadata
Summary:
Our IR rewriting infrastructure currently fails when it encounters a variable which has no metadata associated.
This causes dynamic_cast to fail as in this case IRForTarget considers the type info pointers ('@_ZTI...') to be
variables without associated metadata. As there are no variables for these internal variables, this is actually
not an error and dynamic_cast would work fine if we didn't throw this error.

This patch fixes this by removing this diagnostics code. In case we would actually hit a variable that has no
metadata (but is supposed to have), we still have the error in the expression log so this shouldn't make it
harder to diagnose any missing metadata errors.

This patch should fix dynamic_cast and also adds a bunch of test coverage to that language feature.

Fixes rdar://10813639

Reviewers: davide, labath

Reviewed By: labath

Subscribers: friss, labath, abidh, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D65932

llvm-svn: 368511
2019-08-10 10:56:17 +00:00
Adrian Prantl
f81d6fe75c Adjust a ValueObjectChild's offset when the child is a bitfield
If a bitfield doesn't fit into the child_byte_size'd window at
child_byte_offset, move the window forward until it fits.  The problem
here is that Value has no notion of bitfields and thus the Value's
DataExtractor is sized like the bitfields CompilerType; a sequence of
bitfields, however, can be larger than their underlying type.

This was not in the big-endian-derived DWARF 2 bitfield attributes
because their offsets were counted from the end of the window, so they
always fit.

rdar://problem/53132189

Differential Revision: https://reviews.llvm.org/D65492

llvm-svn: 368226
2019-08-07 22:40:05 +00:00
Shafik Yaghmour
fa5c340ea1 Fix ClangASTContext::CreateParameterDeclaration to not call addDecl
Summary:
The change https://reviews.llvm.org/D55575 modified ClangASTContext::CreateParameterDeclaration to call decl_ctx->addDecl(decl); this caused a regression since the existing code in DWARFASTParserClang::ParseChildParameters is called with the containing DeclContext. So when end up with cases where we are parsing a parameter for a member function and the parameter is added to the CXXRecordDecl as opposed to the CXXMethodDecl. This example is given in the regression test TestBreakpointInMemberFuncWNonPrimitiveParams.py which without this fix in a modules build leads to assert on setting a breakpoint in a member function with non primitive parameters. This scenario would be common when debugging LLDB or clang.

Differential Revision: https://reviews.llvm.org/D65414

llvm-svn: 367726
2019-08-02 21:41:50 +00:00
Shafik Yaghmour
c5d4014535 [Formatters] Temporarily disable libc++ std::function formatter due to performance issue
Summary: We have been seeing increased reports of performance issue around large project and formatting std::function variables especially in functions signatures in back traces. There are some possible fixes but exploring those fixes may take time and it is better to temporarily disable the formatter due to its impact and re-enable it once we have a fix.

Differential Revision: https://reviews.llvm.org/D65666

llvm-svn: 367701
2019-08-02 18:16:04 +00:00
Raphael Isemann
9eedbc4f26 [lldb][NFC] Remove unused imports in python tests
llvm-svn: 367663
2019-08-02 08:06:22 +00:00
Jonas Devlieghere
52f12f63f4 Fix skipIfSanitized decorator on macOS
For security reasons, DYLD_INSERT_LIBRARIES is not propagated to a child
process. This breaks the skipIfSanitized decorator, which checks for the
environment variable being set. Instead, always set the ASAN_OPTIONS and
make the decorator check for that.

Differential revision: https://reviews.llvm.org/D65594

llvm-svn: 367595
2019-08-01 18:35:40 +00:00
Adrian McCarthy
5f5379d076 Fix TestThreadSpecificBreakpoint on Windows
This test was frequently hanging on Windows, causing a timeout after
10 minutes.  The short delay (100 microsecond) in the sample program
could cause a deadlock in the Windows thread pool, as I've explained
in the test program's comments.

Now that it doesn't hang, it passes reliably, so I've removed the
Windows-specific XFAIL.

I've tried to clarify the comments in TestThreadSpecificGBreakpoint.py
by eliminating some redundancy and typos, and I simplified away a
couple unnecessary assignments.

Differential Revision: https://reviews.llvm.org/D65546

llvm-svn: 367573
2019-08-01 14:49:54 +00:00
Jonas Devlieghere
07b1a2b9ae Fix completion for functions in anonymous namespaces
I was going through some of the old bugs and came across PR21069 which I
was able to reproduce. The issue is that we match the regex `^foo`
against the `DW_AT_name` in the DWARF, which for our anonymous function
is indeed `foo`. However, when we get the function name from the symbol
context, the result is `(anonymous namespace)::foo()`. This throws off
completions, which assumes that it's appending to whatever is already
present on the input, resulting in a bogus
`b fooonymous\ namespace)::foo()`.

Bug report: https://llvm.org/PR21069

Differential revision: https://reviews.llvm.org/D65498

llvm-svn: 367455
2019-07-31 17:58:00 +00:00
Raphael Isemann
c8c5226145 [lldb][NFC] Check in completion crash test case
llvm-svn: 367420
2019-07-31 12:15:21 +00:00
Raphael Isemann
005eff04cc [lldb][NFC] Check in another crashing test case
llvm-svn: 367416
2019-07-31 12:06:22 +00:00
Raphael Isemann
525d27006d [lldb][NFC] Check in completion crash test in lambda
llvm-svn: 367411
2019-07-31 11:33:16 +00:00
Jonas Devlieghere
d3ae0bc310 [dotest] Remove multiprocessing
Now that the Xcode project is removed, I want to focus on dotest as a
test framework, and remove its driver capabilities for which we already
rely on llvm's lit. Removing multiprocessing is the first step in that
direction.

Differential revision: https://reviews.llvm.org/D65311

llvm-svn: 367331
2019-07-30 16:42:47 +00:00
Raphael Isemann
0b99518097 [lldb][NFC] Fix import-std-module tests that relied on fix-its to pass
These tests currently pass, but they rely on fix-its in our expression
parser to pass because they have some typos.

llvm-svn: 367309
2019-07-30 13:11:59 +00:00
Raphael Isemann
e010f6bab3 [lldb] Fix crash when tab-completing in multi-line expr
Summary:
Tab completing inside the multiline expression command can cause LLDB to crash. The easiest way
to do this is to go inside a frame with at least one local variable and then try to complete:

    (lldb) expr
    1. a[tab]

Reason for this was some mixup when we calculate the cursor position. Obviously we should calculate
the offset inside the string by doing 'end - start', but we are doing 'start - end' (which causes the offset to
become -1 which will lead to some out-of-bounds reading).

Fixes rdar://51754005

I don't see any way to test this as the *multiline* expression completion is completely untested at the moment
and I don't think we have any existing code for testing infrastructure for it.

Reviewers: shafik, davide, labath

Reviewed By: labath

Subscribers: abidh, lldb-commits, davide, clayborg, labath

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D64995

llvm-svn: 367308
2019-07-30 12:31:24 +00:00
Raphael Isemann
3e85b6f3bd [lldb][NFC] Check in crashing test case
llvm-svn: 367307
2019-07-30 12:20:03 +00:00
Michal Gorny
89a214eaf1 [lldb] [test/lldb-vscode] Use realpath to match vscode behavior
Compare the directory paths returned by lldb-vscode against realpaths
rather than apparent paths.  This matches lldb-vscode behavior
and therefore fixes test failures when one of the parent directories
of the source tree is a symlink.

Differential Revision: https://reviews.llvm.org/D65432

llvm-svn: 367291
2019-07-30 07:47:22 +00:00
Michal Gorny
71e32aca46 [lldb] [test/lldb-vscode] Use os.path.dirname() [NFC]
Replace os.path.split()[0] with os.path.dirname().  Suggested by Pavel
Labath in D65432.

llvm-svn: 367290
2019-07-30 07:47:16 +00:00
Michal Gorny
f9108f76fa [lldb] [test] Mark newly running test XFAIL on NetBSD
The test was not previously run due to decorator bug (fixed in r366903).
It is not a regression and is probably related to the other failing
test, so just disable it.

llvm-svn: 367285
2019-07-30 06:12:03 +00:00
Antonio Afonso
fce596160a Test load unloading of modules with libraries-svr4
Summary:
This doubles the 3 tests running right now on linux by also executing each test with libraries-svr4 enabled.
Not sure if there's a better way to do this as I had to copy/paste all the decorators as well...

Reviewers: labath, clayborg, xiaobai

Reviewed By: labath

Subscribers: srhines, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D65129

llvm-svn: 367247
2019-07-29 18:12:55 +00:00
Jan Kratochvil
2b38951799 [lldb] Increase testsuite packet-timeout 5secs -> 1min
rL357954 did increase `packet-timeout` 1sec -> 5secs. Which is IMO about the
maximum timeout reasonable for regular use. But for testsuite I think the
timeout should be higher as the testsuite runs in parallel and it can be run
even on slow hosts and with other load (moreover if it runs on some slow arch).

I have chosen 60 secs, that should be enough hopefully.  Larger value could
make debugging with hanging `lldb-server` annoying.

This patch was based on this testsuite timeout:
http://lab.llvm.org:8014/builders/lldb-x86_64-fedora/builds/546/steps/test/logs/stdio
	FAIL: test_connect (TestGDBRemoteClient.TestGDBRemoteClient)
	   Test connecting to a remote gdb server
	----------------------------------------------------------------------
	Traceback (most recent call last):
	  File "/home/jkratoch/slave-lldb-x86_64-fedora/lldb-x86_64-fedora/llvm/tools/lldb/packages/Python/lldbsuite/test/functionalities/gdb_remote_client/TestGDBRemoteClient.py", line 13, in test_connect
	    process = self.connect(target)
	  File "/home/jkratoch/slave-lldb-x86_64-fedora/lldb-x86_64-fedora/llvm/tools/lldb/packages/Python/lldbsuite/test/functionalities/gdb_remote_client/gdbclientutils.py", line 480, in connect
	    self.assertTrue(error.Success(), error.description)
	AssertionError: False is not True : failed to get reply to handshake packet

Differential Revision: https://reviews.llvm.org/D65271

llvm-svn: 367234
2019-07-29 16:10:16 +00:00
Michal Gorny
e0ab4c8ee4 [lldb] [test] Mark three new tests XFAIL on NetBSD
llvm-svn: 367228
2019-07-29 14:32:40 +00:00
Jonas Devlieghere
5620e7530f [dotest] Remove dead code
Remove some dead code that I ran into when preparing D65311.

llvm-svn: 367079
2019-07-26 01:58:18 +00:00
Jonas Devlieghere
32211fda29 [Tests] Split inferior crashing tests
We noticed that TestInferiorCrashing.py and TestRecursiveInferior.py are
the second and third slowest tests in the test suite. Splitting them up
allows lit to schedule them more effectively.

llvm-svn: 367077
2019-07-26 01:00:40 +00:00
Jonas Devlieghere
2fa67f442a [dotest] Set environment variables after potentialy clearing others.
Dotest contains code to clear DYLD_LIBRARY_PATH for the inferior to not
propagate sanitized builds. However, it's possible that we want to
inject a different library path with `--inferior-env`. To make that work
correctly, we need to do that *after* clearing DYLD_LIBRARY_PATH.

llvm-svn: 367054
2019-07-25 20:54:41 +00:00
Michal Gorny
e1c159e86a [lldb] [Process/NetBSD] Report stopped process on SIGSTOP
Mark the process as stopped when SIGSTOP arrives.  This is necessary
for lldb-server to generate correct response to 'process interrupt',
and therefore to prevent the whole stack crashing when process
is stopped.

Thanks to Pavel Labath for the tip.

Differential Revision: https://reviews.llvm.org/D65289

llvm-svn: 367047
2019-07-25 20:27:40 +00:00
Pavel Labath
ee74c9e5fd LLGS: fix tracking execve on linux
Summary:
Due to a logic error, lldb-server ended up asserting/crashing every time
the debugged process attempted an execve(). This fixes the error, and
extends TestExec to work on other platforms too. The "extension"
consists of avoiding non-standard posix_spawn extensions and using the
classic execve() call, which should be available on any platform that
actually supports re-execing. I change the test decorator from
@skipUnlessDarwin to @skipIfWindows.

Reviewers: clayborg, jasonmolenda

Subscribers: lldb-commits

Differential Revision: https://reviews.llvm.org/D65207

llvm-svn: 366985
2019-07-25 06:38:33 +00:00
Pavel Labath
3a12e73f67 Fix @skipIfSanitized decorator
To run the test the decorator function should return None, not False.
Returning anything other than None skips the test.

llvm-svn: 366903
2019-07-24 13:05:56 +00:00
Alex Langford
45a3fd206f [lldb][test_suite] Update tests with unexpected pass on Android aarch64
Summary: update some test decorates that can actually pass on andriod aarch64

Patch by Wanyi Ye <kusmour@gmail.com>

Differential Revision: https://reviews.llvm.org/D64767

llvm-svn: 366858
2019-07-23 22:12:16 +00:00
Jan Kratochvil
8693f8f9c1 [lldb] Fix occasional hangs of VSCode testcases
On slower machines the vscode testcases were sometimes hanging:

  1910 ? Sl 0:00 |   \_ /usr/bin/python .../llvm/tools/lldb/test/dotest.py ... -p TestVSCode_setBreakpoints.py
  2649 ? Sl 0:00 |       \_ .../build/bin/lldb-vscode
  2690 ? S  0:00 |           \_ .../build/bin/lldb-server gdbserver --fd=9 --native-regs --setsid
  2708 ? t  0:00 |               \_ .../build/lldb-test-build.noindex/tools/lldb-vscode/breakpoint/TestVSCode_setBreakpoints.test_functionality/a.out

A reproducer of the racy bug for send_recv():
#         self.send_packet(command)
#+        import time
#+        time.sleep(1)
#         done = False

I guess `request_continue` was probably originally intended to be synchronous
but then it isn't and this code has been leftover there.

Differential revision: https://reviews.llvm.org/D65163

llvm-svn: 366850
2019-07-23 20:45:03 +00:00
Antonio Afonso
05e32bad13 Revert "Revert "Implement xfer:libraries-svr4:read packet""
This reverts commit 08c38f77c5.

llvm-svn: 366847
2019-07-23 20:40:30 +00:00
Alex Langford
c7f9bfb0e4 [lldb][test_suite] Fix skipIfTargetAndroid decorator
Summary:
Delete the duplicate func `skipIfTargetAndroid`
Fix the old one. It didn't work for missing an argument `bugnumber`, this somehow made the decorator failed

Differential Revision: https://reviews.llvm.org/D64583

Patch by Wanyi Ye <kusmour@gmail.com>

llvm-svn: 366771
2019-07-23 00:41:00 +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
Antonio Afonso
a61c247ce1 Restore tests for lldb-server and lldb-vscode removed at rL366590
Summary: This was removed here rL366590 by accident.

Reviewers: xiaobai, jfb

Reviewed By: xiaobai

Subscribers: dexonsmith, srhines, krytarowski, jfb, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D65123

llvm-svn: 366766
2019-07-22 23:35:05 +00:00
Raphael Isemann
ca9dfdfaec [lldb] Fix crash when looking up type coming from the ClangModuleDeclVendor
Summary:
We assume in LLDB that every type comes from an ASTContext with an associated ClangASTContext.
However the types inside the ClangModuleDeclVendor don't have a ClangASTContext so we end up
crashing whenever we create a CompilerType for one of these types.

Simplest way to trigger this bug is to just look up NSObject from a module:
   (lldb) expr @import Foundation
   (lldb) type lookup NSObject
   Assertion failed: (m_type_system != nullptr), function CompilerType, file /Users/teemperor/llvm1/llvm-project/lldb/source/Symbol/CompilerType.cpp, line 39.

This patch just creates a ClangASTContext for the ASTContext used by ClangModuleDeclVendor.

Reviewers: davide, shafik

Reviewed By: davide

Subscribers: lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D64989

llvm-svn: 366653
2019-07-21 10:31:13 +00:00
Raphael Isemann
b45853f173 [lldb][NFC] Cleanup mentions and code related to lldb-mi
Summary: lldb-mi has been removed, but there are still a bunch of references in the code base. This patch removes all of them.

Reviewers: JDevlieghere, jfb

Reviewed By: JDevlieghere

Subscribers: dexonsmith, ki.stfu, mgorny, abidh, jfb, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D64992

llvm-svn: 366590
2019-07-19 15:55:23 +00:00
Joseph Tremoulet
3fd917d886 Support Linux signal return trampolines in frame initialization
Summary:
Add __kernel_rt_sigreturn to the list of trap handlers for Linux (it's
used as such on aarch64 at least), and __restore_rt as well (used on
x86_64).

Skip decrement-and-recompute for trap handlers in
InitializeNonZerothFrame, as signal dispatch may point the child frame's
return address to the start of the return trampoline.

Parse the 'S' flag for signal handlers from eh_frame augmentation, and
propagate it to the unwind plan.

Reviewers: labath, jankratochvil, compnerd, jfb, jasonmolenda

Reviewed By: jasonmolenda

Subscribers: clayborg, MaskRay, wuzish, nemanjai, kbarton, jrtc27, atanasyan, jsji, javed.absar, kristof.beyls, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D63667

llvm-svn: 366580
2019-07-19 14:05:55 +00:00
Jim Ingham
fa6199bc5d Add an expectedFailure test for type finding.
When two .c files define a type of the same name, lldb
just picks one and uses it regardless of context.  That is
not correct.  When stopped in a frame in one of the .c files
that define this type, it should use that local definition.

This commit just adds a test that checks for the correct
behavior.  It is currently xfailed.

llvm-svn: 366507
2019-07-18 22:21:16 +00:00
Raphael Isemann
e21fc8770c Add offsetof support to expression evaluator.
Summary:
We currently don't support offsetof in the expression evaluator as it is implemented as a macro
(which then calls __builtin_offsetof) in stddef.h. The best solution would be to include that
header (or even better, import Clang's builtin module), but header-parsing and
(cross-platform) importing modules is not ready yet.

Until we get this working with modules I would say we add the macro to our existing macro list
as we already do with other macros from stddef.h/stdint.h. We should be able to drop all of them
once we can import the relevant modules by default.

rdar://26040641

Reviewers: shafik, davide

Reviewed By: davide

Subscribers: clayborg, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D64917

llvm-svn: 366476
2019-07-18 17:58:04 +00:00
Jason Molenda
1375659e0f Ah, forgot a debug line I left in the dsym-for-uuid.sh script
to make sure it was correctly being disabled after this test
case completed.

llvm-svn: 366381
2019-07-17 21:55:39 +00:00
Jason Molenda
be4be6120f Add support to ProcessMachCore::DoLoadCore to handle an EFI UUID str.
If a core file has an EFI version string which includes a UUID
(similar to what it returns for the kdp KDP_KERNELVERSION packet)
in the LC_IDENT or LC_NOTE 'kern ver str' load command.  In that
case, we should try to find the binary and dSYM for the UUID
listed.  The dSYM may have python code which knows how to relocate
the binary to the correct address in lldb's target section load
list and loads other ancillary binaries.

The test case is a little involved,

1. it compiles an inferior hello world apple (a.out),
2. it compiles a program which can create a corefile manually
   with a specific binary's UUID encoded in it,
3. it gets the UUID of the a.out binary,
4. it creates a shell script, dsym-for-uuid.sh, which will
   return the full path to the a.out + a.out.dSYM when called
   with teh correct UUID,
5. it sets the LLDB_APPLE_DSYMFORUUID_EXECUTABLE env var before
   creating the lldb target, to point to this dsym-for-uuid.sh,
6. runs the create-corefile binary we compiled in step #2,
7. loads the corefile from step #6 into lldb,
8. verifies that lldb loaded a.out by reading the LC_NOTE
   load command from the corefile, calling dsym-for-uuid.sh with
   that UUID, got back the path to a.out and loaded it.

whew!

<rdar://problem/47562911>

llvm-svn: 366378
2019-07-17 21:44:05 +00:00
Shafik Yaghmour
a0858e2f20 Fix CreateFunctionTemplateSpecialization to prevent dangling poiner to stack memory
In ClangASTContext::CreateFunctionTemplateSpecializationInfo a TemplateArgumentList is allocated on the stack but is treated as if it is persistent in subsequent calls. When we exit the function func_decl will still point to the stack allocated memory. We will use TemplateArgumentList::CreateCopy instead which will allocate memory out of the DeclContext.

Differential Revision: https://reviews.llvm.org/D64777

llvm-svn: 366365
2019-07-17 20:16:13 +00:00
Jonas Devlieghere
f90d3dff6e [dotest] Disable color while testing.
Disable colors so we don't risk having unexpected ANSI codes in the test
output. Currently, the behavior of a test can change depending on
whether it's run under a color-supporting terminal, or under a dummy
terminal, for example when using lit or multiprocessing.

llvm-svn: 366356
2019-07-17 17:56:57 +00:00
Jonas Devlieghere
dce1954f45 [Test] Add module cache for TestWeakSymbols
Explicitly set the module cache in the Makefile with
-fmodules-cache-path.

llvm-svn: 366352
2019-07-17 17:22:29 +00:00
Gabor Marton
aefcf5100a [ASTImporter] Fix LLDB lookup in transparent ctx and with ext src
Summary:
With LLDB we use localUncachedLookup(), however, that fails to find
Decls when a transparent context is involved and the given DC has
external lexical storage.  The solution is to use noload_lookup, which
works well with transparent contexts.  But, we cannot use only the
noload_lookup since the slow case of localUncachedLookup is still needed
in some other cases.

These other cases are handled in ASTImporterLookupTable, but we cannot
use that with LLDB since that traverses through the AST which initiates
the load of external decls again via DC::decls().

We must avoid loading external decls during the import becuase
ExternalASTSource is implemented with ASTImporter, so external loads
during import results in uncontrolled and faulty import.

Reviewers: shafik, teemperor, jingham, clayborg, a_sidorin, a.sidorin

Subscribers: rnkovacs, dkrupp, Szelethus, gamesh411, cfe-commits, lldb-commits

Tags: #clang, #lldb

Differential Revision: https://reviews.llvm.org/D61333

llvm-svn: 366325
2019-07-17 13:47:46 +00:00
Michal Gorny
1447b60eeb [lldb] [test] Un-XFAIL TestFormattersSBAPI on NetBSD
llvm-svn: 365991
2019-07-13 06:24:14 +00:00
Raphael Isemann
2bc8ab6852 [lldb] Make TestDeletedExecutable more reliable
Summary:
It seems that calling Popen can return to the caller before the started process has read all the needed information
from its executable. This means that in case we delete the executable while the process is still starting up,
this test will create a zombie process which in turn leads to a failing test. On my macOS system this happens quite frequently.

This patch fixes this by letting the test synchronize with the inferior after it has started up.

Reviewers: davide

Reviewed By: davide

Subscribers: labath, friss, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D64546

llvm-svn: 365813
2019-07-11 19:27:33 +00:00
Raphael Isemann
df9051e7cf [lldb] Disable TestDollarInVariable.py on Windows
It seems on Windows we don't handle the lldb_expr_result variable correctly:

```
AssertionError: False is not True : 'expr $__lldb_expr_result' returns expected result, got '(int &) $0 = 0x0000000000000000'
```

I'll disable the test until I can find a way to debug this on Windows.

llvm-svn: 365719
2019-07-11 00:35:31 +00:00
Raphael Isemann
0171866672 [lldb] Fix handling of dollar characters in expr command
llvm-svn: 365698
2019-07-10 21:04:01 +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
Stella Stamenova
2ea514c566 [lldb-suite] Skip TestMachCore on Windows
This test was originally marked as expected failure on Windows, but it is timing out instead of outright failing now. The expectedFailure attribute does not correctly track timeouts (as in, they don't count as failures), so now this is causing the test suite to fail.

llvm-svn: 365527
2019-07-09 18:18:02 +00:00
Michal Gorny
10c96cabc1 [lldb] [test] Update NetBSD XFAILs in test suite
llvm-svn: 365338
2019-07-08 16:16:07 +00:00
Stella Stamenova
86e4d7ea35 [lldb] [lldbsuite] Use a unique class name for TestValueVarUpdate
It looks like when this test was added, it was based on TestHelloWorld and it ended up with the same class name. This is an issue because the logs associated with the tests use the class name as the identifier for the file and if two tests have the same name their logs overwrite each other. On non-windows, this just means we lose one of the logs, but on Windows this means that one of the tests will fail occasionally because the file are locked by the other test.

llvm-svn: 364860
2019-07-01 22:12:55 +00:00
Stella Stamenova
55d2e6f1c2 [lldb] [lldbsuite] Use a unique class name for TestBacktraceAll
It looks like when this test was added, it was based on TestBreakAfterJoin and it ended up with the same class name. This is an issue because the logs associated with the tests use the class name as the identifier for the file and if two tests have the same name their logs overwrite each other. On non-windows, this just means we lose one of the logs, but on Windows this means that one of the tests will fail occasionally because the file are locked by the other test.

llvm-svn: 364826
2019-07-01 18:13:20 +00:00
Michal Gorny
0856721e3a [lldb] [Process/NetBSD] Use global enable bits for watchpoints
Set global enable bits (i.e. bits 1, 3, 5, 7) to enable watchpoints
on NetBSD rather than the local enable bits (0, 2, 4, 6).  The former
are necessary for watchpoints to be correctly recognized by the NetBSD
kernel.  The latter cause them to be reported as trace points.

Differential Revision: https://reviews.llvm.org/D63792

llvm-svn: 364781
2019-07-01 15:11:42 +00:00
Pavel Labath
77c04c3a57 @skipIfXmlSupportMissing TestRecognizeBreakpoint
llvm-svn: 364753
2019-07-01 13:12:29 +00:00
Pavel Labath
08c38f77c5 Revert "Implement xfer:libraries-svr4:read packet"
D62502, together with D62503 have broken the builds which have XML
support enabled. Reverting D62503 (r364355) fixed that, but has broken
has left some of the tests introduced by D62502 broken more or less
nondeternimistically (it depended on whether the system happens to place
the library list near unreadable pages of memory). I attempted to make a
partial fix for this in r364748, but Jan Kratochvil pointed out that
this reintroduces the problem which reverting D62503 was trying to
solve.

So instead, I back out the whole thing so we can get back to a clean
slate that works for everyone. We can figure out a way forward from
there.

This reverts r364748, r363772 and r363707.

llvm-svn: 364751
2019-07-01 12:41:20 +00:00
Adrian Prantl
6293cd0504 Replace tabs with spaces.
llvm-svn: 364716
2019-06-29 18:32:16 +00:00
Jim Ingham
f2128b28cd Get the expression parser to handle missing weak symbols.
MachO only for this patch.

Differential Revision: https://reviews.llvm.org/D63914

<rdar://problem/51463642>

llvm-svn: 364686
2019-06-28 21:40:05 +00:00
Jim Ingham
8864b4360a Make sure the thread list is updated before you set the stop reason
on a thread.  When talking to some older gdb-remote stubs, We were getting
a stop reason from the stop reply packet and setting it on the relevant
thread before we updated the full stop list.  That would get discarded when
the full list was updated.

Also, if you already have a thread list when you go to see if there is an
Operating System plugin, and you do indeed load a new OS plugin, you have to
re-fetch the thread list or it will only show the raw threads.

Differential Revision: https://reviews.llvm.org/D62887

llvm-svn: 364666
2019-06-28 17:57:19 +00:00
Jason Molenda
1659276bee Support nested target.xml register definition files, lack of reg group markers.
The qemu x86_64 target returns a target.xml register definition file which
includes other xml files and they include others, etc.  Also, the registers
are not put in register groups like lldb wants to see.

This patch (1) puts registers that aren't in a register group in a "general"
register group, (2) change ProcessGDBRemote::GetGDBServerRegisterInfo to
be a method that starts the parsing, asking a recurisve function to fetch
and parse target.xml, (3) adds 
ProcessGDBRemote::GetGDBServerRegisterInfoXMLAndProcess which can recusively
call itself to read and parse included xml files, (4) in addition to expecting
the top-level <target> element (which only happens in the top level xml file),
also an xml file that consists of a <feature> node - read the register 
defintions and includes from that <feature> element.  

<rdar://problem/49537922> 
Differential revision: https://reviews.llvm.org/D63802

llvm-svn: 364484
2019-06-26 21:59:39 +00:00
Jonas Devlieghere
c8232e4310 [dotest] Add the ability to set environment variables for the inferior.
This patch adds a dotest flag for setting environment variables for the
inferior. This is different from the current --env flag, which sets
variables in the debugger's environment. This allows us to set things
like LD_LIBRARY_PATH for testing.

Differential revision: https://reviews.llvm.org/D63790

llvm-svn: 364443
2019-06-26 16:12:08 +00:00
Jonas Devlieghere
c8e450a917 [dotest] Remove unused function
The function `EnvArray` has no used.

llvm-svn: 364351
2019-06-25 21:19:44 +00:00
Alex Langford
09ede9d65f [ABI] Implement Windows ABI for x86_64
Summary:
Implement the ABI for WIndows-x86_64 including register info and calling convention.
Handled nested struct returned in register (SysV doesn't have it supported)

Reviewers: xiaobai, compnerd

Reviewed By: compnerd

Subscribers: labath, jasonmolenda, fedor.sergeev, mgorny, teemperor, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D62213

llvm-svn: 364216
2019-06-24 18:21:05 +00:00
Pavel Labath
80b6b705f8 Stabilize TestGdbRemoteLibrariesSvr4Support
on some systems this test fails because the two methods it uses to
cross-reference the data don't match in the case of the vdso module. The
"read from /proc/%pid/maps" method returns "[vdso]", while the method
which reads it from the linker rendezvous structures returns
"linux-vdso.so.1". Neither of the two names match any actual file.

This restricts the test to only consider the libraries that we ourselves
have added to the test, minimizing the impact of system dependencies
that we cannot control.

llvm-svn: 363772
2019-06-19 08:41:13 +00:00
Antonio Afonso
fda83c9b0b Implement xfer:libraries-svr4:read packet
Summary:
This is the fourth patch to improve module loading in a series that started here (where I explain the motivation and solution): D62499

Implement the `xfer:libraries-svr4` packet by adding a new function that generates the list and then in Handle_xfer I generate the XML for it. The XML is really simple so I'm just using string concatenation because I believe it's more readable than having to deal with a DOM api.

Reviewers: clayborg, xiaobai, labath

Reviewed By: labath

Subscribers: emaste, mgorny, srhines, krytarowski, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D62502

llvm-svn: 363707
2019-06-18 17:51:56 +00:00
Jonas Devlieghere
f9626f27c8 Add color to the default thread and frame format.
Now that we correctly ignore ASCII escape sequences when colors are
disabled (r362240), I'd like to change the default frame and thread
format to include color in their output, in line with the syntax
highlighting that Raphael added a while ago.

This patch adds highlighting for the stop reason, the file, line and
column number. With colors disabled, this of course is a no-op.

Differential revision: https://reviews.llvm.org/D62743

llvm-svn: 363608
2019-06-17 19:53:11 +00:00
Jan Kratochvil
8c82c41262 [lldb] [test] Extend D55859 symbols.enable-external-lookup=false for more testcases
D55859 <https://reviews.llvm.org/D55859> has no effect for some of the
testcases so this patch extends it even for (all?) other testcases known to me.
LLDB was failing when LLDB prints errors reading system debug infos
(`*-debuginfo.rpm`, DWZ-optimized) which should never happen as LLDB testcases
should not be affected by system debug infos.

`lldb/packages/Python/lldbsuite/test/api/multithreaded/driver.cpp.template` is
using only SB API which does not expose `ModuleList` so I had to call
`HandleCommand()` there.

`lldb-test.cpp` could also use `HandleCommand` and then there would be no need
for `ModuleListProperties::SetEnableExternalLookup()` but I think it is cleaner
with API and not on based on text commands.

Differential Revision: https://reviews.llvm.org/D63339

llvm-svn: 363567
2019-06-17 14:46:17 +00:00
Michal Gorny
d3d2edf901 [lldb] [test] Watchpoint tests can be always run as root on NetBSD
llvm-svn: 363551
2019-06-17 12:32:09 +00:00
Michal Gorny
43cf5ae48a [lldb] [test] Skip watchpoint tests on NetBSD if userdbregs is disabled
Skip watchpoint tests if security.models.extensions.user_set_dbregs
is disabled.  This indicates that unprivileged processes are not allowed
to write to debug registers which is a prerequisite for using hardware
watchpoints.

Differential Revision: https://reviews.llvm.org/D63380

llvm-svn: 363536
2019-06-17 09:49:05 +00:00
Adrian Prantl
87f75ecd72 Skip failing test on older versions of clang.
llvm-svn: 363202
2019-06-12 21:30:00 +00:00
Alex Langford
5b99928ba8 [Expression] Add PersistentExpressionState::GetCompilerTypeFromPersistentDecl
Summary:
PersistentStateExpressions (e.g. ClangPersistentVariables) have the
ability to define types using expressions that persist throughout the
debugging session. GetCompilerTypeFromPersistentDecl is a useful
operation to have if you need to use any of those persistently declared types,
like in CommandObjectMemory.

This decouples clang from CommandObjectMemory and decouples Plugins from
Commands in general.

Differential Revision: https://reviews.llvm.org/D62797

llvm-svn: 363183
2019-06-12 17:47:06 +00:00
Alex Langford
a03e2b25ab [ABI] Fix SystemV ABI to handle nested aggregate type returned in register
Add a function to flatten the nested aggregate type

Differential Revision: https://reviews.llvm.org/D62702

Patch by Wanyi Ye <kusmour@gmail.com>

llvm-svn: 362543
2019-06-04 19:29:59 +00:00
Pavel Labath
f04b3635c4 [lldb-server] Support 'g' packets
Differential Revision: https://reviews.llvm.org/D62221
Patch by Guilherme Andrade <guiandrade@google.com>.

llvm-svn: 362063
2019-05-30 07:25:22 +00:00
Jonas Devlieghere
4eb8610da2 [Test] Fix conflicting test names.
Two tests having the same name creates a race condition when moving the
trace files.

llvm-svn: 361310
2019-05-21 20:55:00 +00:00
Tatyana Krasnukha
e0cc56e038 [lldb-mi] Include full path in the -data-disassemble response
Differential Revision: https://reviews.llvm.org/D59015

Patch by Anton Kolesov <Anton.Kolesov@synopsys.com>

llvm-svn: 361255
2019-05-21 13:22:46 +00:00
Adrian Prantl
431dd943a1 Make sure GetObjectDescription falls back to the Objective-C runtime.
This fixes an unintended regression introduced by
https://reviews.llvm.org/D61451 by making sure the Objective-C runtime
is also tried when the "correct" language runtime failed to return an
object description.

rdar://problem/50791055

Differential Revision: https://reviews.llvm.org/D62015

llvm-svn: 360929
2019-05-16 19:21:31 +00:00
Michal Gorny
11b515ac0a [lldb] [test] Skip one more TestMiBreak on NetBSD
llvm-svn: 360800
2019-05-15 20:03:31 +00:00
Michal Gorny
9c7188a08a [lldb] [test] Mark frequently failing flaky tests skipped on NetBSD
llvm-svn: 360767
2019-05-15 12:13:20 +00:00
Alex Langford
bd3adfe5e3 [Target] Generalize some behavior in Thread
Summary:
I don't think there's a good reason for this behavior to be considered
ObjC-specific. We can generalize this.

Differential Revision: https://reviews.llvm.org/D61776

llvm-svn: 360741
2019-05-15 01:46:45 +00:00
Jim Ingham
7d7b788fb1 Make SBDebugger.RunCommandInterpreter callable from Python.
Authored by: Lukas Boger

Differential Revision: https://reviews.llvm.org/D61602

llvm-svn: 360730
2019-05-15 00:08:55 +00:00
Pavel Labath
b1f213cfdc TestMinidumpNew.py: Use yaml2obj where possible
Replace checked-in minidumps with their yaml forms now that yaml2obj
supports the ThreadList stream. I delete the test_modules_in_mini_dump
test altogether as this functionality is covered more systematically in
TestMinidumpUUID.py.

llvm-svn: 360655
2019-05-14 08:59:08 +00:00
Fangrui Song
efe8e7e36d typedef enum -> enum
Reviewed By: labath

Differential Revision: https://reviews.llvm.org/D61883

llvm-svn: 360654
2019-05-14 08:55:50 +00:00
Pavel Labath
33fdaed491 @skipIfLinux flaky lldb-mi tests
llvm-svn: 360564
2019-05-13 08:48:03 +00:00
Jason Molenda
abcb1215c9 Change the disabling of packet logging to be in TearDownHook lambdas.
llvm-svn: 360482
2019-05-10 23:22:15 +00:00
Jason Molenda
18ba8947a6 Ted pointed out that some of test tests that are enabling packet
logging when the testsuite is run with trace mode enabled are leaving
the logging enabled after the tests have finished.  That state
isn't cleared in a --no-multiprocess testsuite run.

llvm-svn: 360480
2019-05-10 23:03:05 +00:00
Pavel Labath
78c1dcb7b7 minidump: Don't eagerly resolve module paths read from the minidump
This can cause us to return paths to files on the local filesystem even
if we don't end up using that file (for instance because the file is not
a real module).

llvm-svn: 360432
2019-05-10 15:05:26 +00:00
Pavel Labath
21929d49d5 Revert "Disable the step over skipping calls feature since buildbots are not happy."
While this fixed the windows bot failures, it also broke all other bots.

Upon closer inspection, it turns out that the windows bots were "broken"
because two tests were unexpectedly passing -- i.e., the original patch
(r360375) actually improved our stepping support on windows.

So instead, I remove the relevant XFAILs.

This reverts commit r360397.

llvm-svn: 360407
2019-05-10 06:57:25 +00:00
Greg Clayton
df225764b7 Improve step over performance by not stopping at branches that are function calls and stepping into and them out of each one
Currently when we single step over a source line, we run and stop at every branch in the source line range. We can reduce the number of times we stop when stepping over by figuring out if any of these branches are function calls, and if so, ignore these branches. Since we are stepping over we can safely ignore these calls since they will return to the next instruction. Currently the step logic would stop at those branches (1st stop), single step into the branch (2nd stop), and then set a breakpoint at the return address (3rd stop), and then continue.

Differential Revision: https://reviews.llvm.org/D58678

llvm-svn: 360375
2019-05-09 20:39:34 +00:00
Stella Stamenova
dde1d9a6b7 Fix TestVSCode_attach on Linux
The test is failing sometimes because the debugger is failing to attach for lack of permissions. The fix is to call lldb_enable_attach inside the inferior main function

llvm-svn: 360371
2019-05-09 19:49:26 +00:00
Jonas Devlieghere
693551d767 [test] Remove randomness
This particular test fails once every so many runs on GreenDragon. Given
that the randomness in the inferior isn't critical to the test, I
removed it in the hopes that it is the cause of the flakiness.

llvm-svn: 359992
2019-05-05 18:54:16 +00:00
Raphael Isemann
090a5b29b8 Fixed some minor style issues in rLLDB359921 [NFC]
Ran clang-format on the added test file and use the new StringRef
comparison over the temporary ConstStrings. Also aligned the
end of one of the code string literals.

llvm-svn: 359931
2019-05-03 21:01:45 +00:00
Jonas Devlieghere
e5f7d601ee [Alias] Add 're' alias for register
This patch makes `re` an alias for `register`. Currently `re<TAB>` gives
you the choice between `register` and `reproducer`. Given that you use
`register` a lot more often, it should win for the common substring.

Differential revision: https://reviews.llvm.org/D61469

llvm-svn: 359927
2019-05-03 20:37:09 +00:00
Adrian Prantl
80b047ef66 Supply a default implementation of IsRuntimeSupportValue.
Thanks to Pavel for pointing this out.

llvm-svn: 359925
2019-05-03 20:28:19 +00:00
Shafik Yaghmour
e5cbe78259 Fix for ambiguous lookup in expressions between local variable and namespace
Summary:
In an Objective-C context a local variable and namespace can cause an ambiguous name lookup when used in an expression. The solution involves mimicking the existing C++ solution which is to add local using declarations for local variables. This causes a different type of lookup to be used which eliminates the namespace during acceptable results filtering.

Differential Revision: https://reviews.llvm.org/D59960

llvm-svn: 359921
2019-05-03 19:59:22 +00:00
Pavel Labath
d214898f1f Split TestVLA into two and XFAIL one part
The part which checks whether vla_expr shows up in the variable list
does not pass on non-darwin platforms. Add the appropriate decorator.

llvm-svn: 359867
2019-05-03 08:06:28 +00:00
Adrian Prantl
a0ac5afb0a Fix tests on non-Darwin platforms.
llvm-svn: 359846
2019-05-02 23:49:55 +00:00
Adrian Prantl
1db0f0ca98 Hide runtime support values such as clang's __vla_expr from frame variable
by respecting the "artificial" attribute on variables. Function
arguments that are artificial and useful to end-users are being
whitelisted by the language runtime.

<rdar://problem/45322477>

Differential Revision: https://reviews.llvm.org/D61451

llvm-svn: 359841
2019-05-02 23:07:23 +00:00
Jonas Devlieghere
0682fc5e5f Disable TestArgumentPassingRestrictions for clang < 7
http://green.lab.llvm.org/green/view/LLDB/job/lldb-cmake-matrix/

llvm-svn: 359812
2019-05-02 18:26:46 +00:00
Jonas Devlieghere
291a0b89fa [test] TestSharedPtr -> TestSharedPtrDbgInfoContent
Two tests cannot share the same name, because they will generate an
identical trace file. When that happens, this can lead to a race
condition where dotest fails when trying to move both files into the
trace directory, because the file has already been moved. Additionally,
the trace will have been overwritten by the test that finishes last.

llvm-svn: 359807
2019-05-02 17:35:18 +00:00
Raphael Isemann
9a0acdf65e Add std::stack and std::queue support to CxxModuleHandler
Reviewers: aprantl, shafik

Reviewed By: aprantl, shafik

Subscribers: lldb-commits

Tags: #c_modules_in_lldb, #lldb

Differential Revision: https://reviews.llvm.org/D61305

llvm-svn: 359779
2019-05-02 11:25:50 +00:00