4293 Commits

Author SHA1 Message Date
Raphael Isemann
8cb7574541 Revert "[lldb] Enable C++14 when evaluating expressions in a C++14 frame"
This reverts commit 5f88f39ab8154682c3b1eb9d7050a9412a55d9e7. It broke these
three tests on the Window bot:
  lldb-api :: commands/expression/completion/TestExprCompletion.py
  lldb-api :: lang/cpp/scope/TestCppScope.py
  lldb-api :: lang/cpp/standards/cpp11/TestCPP11Standard.py
2020-05-22 21:23:03 +02:00
Jonas Devlieghere
d89c98a020 [lldb/Test] Remove issue_verification subdirectory
These files haven't been touched since 2015. According to Pavel these
were intended to be test for the test framework which never really took
of and are mostly irrelevant by now.

Differential revision: https://reviews.llvm.org/D80408
2020-05-22 09:32:12 -07:00
Pavel Labath
053b0634ea [lldb] Increase timeout in TestExitDuringExpression
200 microseconds is not enough time for any expression to execute
reliably. On linux, calling pthread_exit can result in call to dlopen,
which cannot complete in that time, particularly when running under a
debugger.

On linux, this test failed all the time, on macos, about two thirds of
runs were failing.  This patch increases the timeout to 100ms, which is
enough to get it passing reliably on linux, though I wouldn't be
surprised if an even bigger timeout would be needed for remote test
runs.
2020-05-22 12:47:34 +02:00
Raphael Isemann
5f88f39ab8 [lldb] Enable C++14 when evaluating expressions in a C++14 frame
Summary:
Currently we never enable C++14 in the expression evaluator. This enables it when the language of the program is C++14.

It seems C++17 and so on isn't yet in any of the language enums (and the DWARF standard it seems), so C++17 support will be a follow up patch.

Reviewers: labath, JDevlieghere

Reviewed By: labath, JDevlieghere

Subscribers: aprantl

Differential Revision: https://reviews.llvm.org/D80308
2020-05-22 11:42:44 +02:00
Jonas Devlieghere
329abed10b [lldb/Reproducers] Skip test that changes the source file while debugging
The VFS is a snapshot and cannot capture changes to the file system.
2020-05-21 20:36:39 -07:00
Jonas Devlieghere
e3a0283e5a [lldb/Test] Fix replay with TestSetWatchpoint.py
The reproducers only track the creation of objects and not their
destruction. Therefore it keeps all objects alive indefinitely.
2020-05-21 20:35:32 -07:00
Jim Ingham
54c2c2add7 Maybe I need ENABLE_THREADS in the Makefile. 2020-05-21 18:38:49 -07:00
Jim Ingham
1583766ed2 This very simple .c file is failing on the Debian bot wit the error
undefined reference to pthread_create

I skipped the test till I can figure out why this didn't build.
2020-05-21 18:26:01 -07:00
Jim Ingham
dbbed971e3 Handle the case where a thread exits while we are running a function on it. 2020-05-21 17:55:53 -07:00
Jonas Devlieghere
9e391d4faa [lldb/Test] Cleanup TestSymbolContext.py
Remove commented out code, fix the indentation and always use the full
path to the executable. The latter is necessary for the test to pass
from reproducer replay.
2020-05-21 17:32:05 -07:00
Jonas Devlieghere
1d64d69ab7 [lldb/Reproducers] Skip lldb-vscode category when lldb-run-with-repro is set.
This skips all the lldb-vscode tests when running the test suite with
reproducers.
2020-05-21 17:02:04 -07:00
Adrian Prantl
60dff35fd4 Move decorator to the correct function. 2020-05-21 10:42:26 -07:00
Adrian Prantl
a62a520044 Disable malloc stepping test under ASAN. The output is different and I'm not sure how stable it is. 2020-05-21 10:41:27 -07:00
Adrian Prantl
2af2bc33d3 Disable ptr_ref tests under ASAN 2020-05-21 10:38:26 -07:00
Jonas Devlieghere
7606a54363 [lldb/Reproducers] Fix/skip passive replay failures in python_api subdir
Fixes or skips tests in the python_api subdirectory that were failing
with passive replay.
2020-05-20 23:23:53 -07:00
Jonas Devlieghere
8723f841aa [lldb/Test] Support arbitrary file extensions in TestPositionalArgs.test
On Windows the line must match:

  Use 'lldb.exe --help' for a complete list of options.
2020-05-20 14:09:19 -07:00
Jonas Devlieghere
ce19664d94 [lldb/Driver] Print snippet before exiting with unknown argument.
Print a little snippet before exiting when passed unrecognized
arguments. The goal is twofold:

 - Point users to lldb --help.
 - Make it clear that we exited the debugger.
2020-05-20 12:35:02 -07:00
Jonas Devlieghere
4b17702434 [lldb/Reproducers] Skip another test that uses lldb::FileSP under the hood 2020-05-20 09:49:29 -07:00
Jonas Devlieghere
5b5b81bcdc [lldb/Driver] Error out when encountering unknown arguments
There appears to be consensus in D80165 that this is the desired
behavior and I personally agree.

Differential revision: https://reviews.llvm.org/D80226
2020-05-20 09:40:40 -07:00
Jonas Devlieghere
667be3319d [lldb/Reproducers] Update macosx remote tests for passive replay
Skip tests or part thereof that are not supposed to work with replay.
2020-05-20 09:03:16 -07:00
Raphael Isemann
587f81f54a Revert "[lldb-server] Reset stop reason of all threads when resuming"
This reverts commit 56de738d18e11c86169f0248b97b2854c37e35ce.

This broke the aarch64 bot. Reverting on behalf of jarin.
2020-05-20 13:29:04 +02:00
Raphael Isemann
4bee2afcd7 [lldb][NFC] Modernize TestCPPStaticMethods
Now with LLVM code style and expect_expr for checking. Also some minor changes
to be more similar to the structure we use in other tests.
2020-05-20 12:27:44 +02:00
Jaroslav Sevcik
56de738d18 [lldb-server] Reset stop reason of all threads when resuming
Summary:
This patch makes the stop reason reset logic similar to MacOS' debugserver, where exceptions are reset for all threads when resuming process for stepping or continuing (see [[ 96f3ea0d21/lldb/tools/debugserver/source/MacOSX/MachThreadList.cpp (L433) | MachThreadList::ProcessWillResume ]] and [[ 96f3ea0d21/lldb/tools/debugserver/source/MacOSX/MachThread.cpp (L363) | MachThread::ThreadWillResume ]]).

Resetting stop reasons on resume fixes problems where LLDB spuriously reports SIGTRAP signal stop reason for deleted breakpoints (both internal and public) and where  LLDB stops on an internal breakpoint while stepping over while a breakpoint is hit in another thread. See [[ https://bugs.llvm.org/show_bug.cgi?id=45642 | PR45642 ]] for details.

Reviewed By: jingham, labath

Differential Revision: https://reviews.llvm.org/D79308
2020-05-20 11:08:34 +02:00
Pavel Labath
2a227b36b0 Revert "Add terminateCommands to lldb-vscode protocol"
This reverts commit a3609b0ec68522cb417ffe36ce9eb2e25ca61578, because it
makes a number of lldb-vscode tests flaky.
2020-05-20 10:48:29 +02:00
António Afonso
a3609b0ec6 Add terminateCommands to lldb-vscode protocol
Summary: Adding this in line with "stopCommands" and "exitCommands" so that we can run commands at the end of the debugging session.

Reviewers: clayborg, wallace, labath

Reviewed By: clayborg, labath

Subscribers: lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D79726
2020-05-19 16:18:05 -07:00
Jonas Devlieghere
c7dddaa89f [lldb/Reproducers] Update GDB remote client tests for passive replay
Tests that check the state of the server don't work when replayed
because the replay server replies to requests.
2020-05-19 13:07:50 -07:00
Jonas Devlieghere
018e5a96ee [lldb/Properties] Move OSPluginReportsAllThreads from Target to Process
This is what Jim wanted originally.

rdar://problem/61236293

Differential revision: https://reviews.llvm.org/D80159
2020-05-19 11:26:39 -07:00
Jonas Devlieghere
2bb16f9412 [lldb/Test] Skip TestPositionalArgs with lldb-repro 2020-05-18 22:59:55 -07:00
Jonas Devlieghere
82093e8fb7 [lldb/Driver] Fix handling on positional arguments
Before the transition to libOption it was possible to specify arguments
for the inferior without -- as long as they didn't start with a dash.

For example, the following invocations should all behave the same:

  $ lldb inferior inferior-arg
  $ lldb inferior -- inferior-arg
  $ lldb -- inferior inferior-arg

This patch fixes that behavior, documents it and adds a test to cover
the different combinations.

Differential revision: https://reviews.llvm.org/D80165
2020-05-18 18:52:18 -07:00
Reid Kleckner
47cc6db928 Re-land [Debug][CodeView] Emit fully qualified names for globals
This reverts commit 525a591f0f48b9d54018bf5245f2abee09c9c1c8.

Fixed an issue with pointers to members based on typedefs. In this case,
LLVM would emit a second UDT. I fixed it by not passing the class type
to getTypeIndex when the base type is not a function type. lowerType
only uses the class type for direct function types. This suggests if we
have a PMF with a function typedef, there may be an issue, but that can
be solved separately.
2020-05-18 17:31:00 -07:00
Jonas Devlieghere
2084330e41 [lldb/Reproducers] Add skipIfReproducer to more tests
Mark more tests as unsupported with reproducers.
2020-05-18 10:13:01 -07:00
Hans Wennborg
525a591f0f Revert 76c5f277f2 "Re-land [Debug][CodeView] Emit fully qualified names for globals"
> Before this patch, S_[L|G][THREAD32|DATA32] records were emitted with a simple name, not the fully qualified name (namespace + class scope).
>
> Differential Revision: https://reviews.llvm.org/D79447

This causes asserts in Chromium builds:

CodeViewDebug.cpp:2997: void llvm::CodeViewDebug::emitDebugInfoForUDTs(const std::vector<std::pair<std::string, const DIType *>> &):
Assertion `OriginalSize == UDTs.size()' failed.

I will follow up on the Phabricator issue.
2020-05-18 11:26:30 +02:00
Med Ismail Bennani
4e9e0488ab [lldb/Commands] Add ability to run shell command on the host.
This patch introduces the `(-h|--host)` option to the `platform shell`
command. It allows the user to run shell commands from the host platform
(always available) without putting lldb in the background.

Since the default behaviour of `platform shell` is to run the command of
the selected platform, having such a choice can be quite handy when
debugging remote targets, for instances.

This patch also introduces a `shell` alias, to improve the command
discoverability and make it more convenient to use for the user.

rdar://62856024

Differential Revision: https://reviews.llvm.org/D79659

Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
2020-05-15 22:14:39 +02:00
Med Ismail Bennani
0eba9de71e [lldb/Dataformatter] Add support to CF{Dictionary,Set}Ref types
This patch improves data formatting for CFDictionaryRef and CFSetRef.
It uses the same data-formatter as NSCFDictionaries and NSCFSets introduced
previously but did require some adjustments in Core::ValueObject.

Since the "Ref" types are opaque pointers to the actual CF containers, if the
value object has a synthetic value, lldb will use the opaque pointer's pointee
type to create the new ValueObjectChild needed to dereference the ValueObject.
This allows the "Ref" types to behaves the same as CF containers when used with
the `frame variable` command, the SBAPI or in Xcode's variable inspector.

This patch also adds support for incomplete types in ValueObject.

rdar://53104287

Differential Revision: https://reviews.llvm.org/D79554

Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
2020-05-15 22:14:39 +02:00
Alexandre Ganea
76c5f277f2 Re-land [Debug][CodeView] Emit fully qualified names for globals
Before this patch, S_[L|G][THREAD32|DATA32] records were emitted with a simple name, not the fully qualified name (namespace + class scope).

Differential Revision: https://reviews.llvm.org/D79447
2020-05-15 10:37:09 -04:00
Pavel Labath
36b9b1e617 [lldb] Fixup command-disassemble-process.yaml test
Increase the function size to account for the changed threshold in
8b845ac5edc1.
2020-05-15 12:35:44 +02:00
Pavel Labath
8b845ac5ed Recommit "[lldb] Don't dissasemble large functions by default"
This recommits f665e80c023 which was reverted in 1cbd1b8f692d for breaking
TestFoundationDisassembly.py. The fix is to use --force in the test to avoid
bailing out on large functions.

I have also doubled the large function limit to 8000 bytes (~~ 2000 insns), as
the foundation library contains a lot of large-ish functions. The intent of this
feature is to prevent accidental disassembling of enormous (multi-megabyte)
"functions", not to get in people's way.

The original commit message follows:

If we have a binary without symbol information (and without
LC_FUNCTION_STARTS, if on a mac), then we have to resort to using
heuristics to determine the function boundaries. However, these don't
always work, and so we can easily end up thinking we have functions
which are several megabytes in size. Attempting to (accidentally)
disassemble these can take a very long time spam the terminal with
thousands of lines of disassembly.

This patch works around that problem by adding a sanity check to the
disassemble command. If we are about to disassemble a function which is
larger than a certain threshold, we will refuse to disassemble such a
function unless the user explicitly specifies the number of instructions
to disassemble, uses start/stop addresses for disassembly, or passes the
(new) --force argument.

The threshold is currently fairly aggressive (4000 bytes ~~ 1000
instructions). If needed, we can increase it, or even make it
configurable.

Differential Revision: https://reviews.llvm.org/D79789
2020-05-15 11:57:48 +02:00
Raphael Isemann
d48ef7cab5 [lldb] Print full Clang diagnostics when the ClangModulesDeclVendor fails to compile a module
Summary:
When the ClangModulesDeclVendor currently fails it just prints very basic and often incomplete diagnostics without any source locations:
```
(lldb) p @import Foundation
error: while importing modules:
'foo/bar.h' file not found
could not build module 'Darwin'
[...]
```
or even just
```
(lldb) p @import Foundation
error: while importing modules:
could not build module 'Darwin'
[...]
```

These diagnostics help neither the user nor us with figuring out what is the reason for the failure.

This patch wires up a full TextDiagnosticPrinter in the ClangModulesDeclVendor and makes
sure we always return the error stream to the user when we fail to compile our modules.

Fixes rdar://63216849

Reviewers: aprantl, jdoerfert

Reviewed By: aprantl

Subscribers: JDevlieghere

Differential Revision: https://reviews.llvm.org/D79947
2020-05-15 10:11:03 +02:00
Jonas Devlieghere
bf02bcffcf [lldb/Test] Modify more tests for API replay
Skip tests or parts thereof that aren't expected to work when run from a
reproducer. Also improve the doc comments in configuration.py to prevent
mistakes in the future.
2020-05-14 17:58:27 -07:00
Jonas Devlieghere
9fde516032 [lldb/Test] Replace assertTrue with more specific checks (NFC)
Use assertEqual(a, b) instead of assertTrue(a == b) etc.
2020-05-14 15:48:48 -07:00
shafik
1cbd1b8f69 Revert "[lldb] Don't dissasemble large functions by default"
This reverts commit f665e80c023ec52557f55d7eeaf34471e4c6fa0d.

Reverting because it breaks TestFoundationDisassembly.py
2020-05-14 14:15:51 -07:00
Jonas Devlieghere
2d6f4fec07 [lldb/Test] Skip test using files to synchronize.
Files written by the inferior are not captured by the reproducers and
the inferior doesn't actually run during replay.
2020-05-14 13:08:56 -07:00
Jonas Devlieghere
e7c91e3124 [lldb/Test] Skip remaining 'side_effect' tests with reproducers.
The side_effect Python package bypasses the reproducer instrumentation
and therefore these tests are not expected to replay from a reproducer.
2020-05-14 10:38:56 -07:00
Jonas Devlieghere
e29cae1e53 [lldb/Test] Skip TestExpressionInSyscall with reproducers
Skip this test because it relies on a timeout.
2020-05-14 10:38:56 -07:00
Pavel Labath
eb50b643fe [lldb/PDB] Make "native" pdb tests host-independent
These test don't execute the binaries they build, and so they don't need
to build for the host. By hardcoding the target, we don't have do xfail
or skip them for targets which don't have the appropriate support in
clang(-cl).
2020-05-14 16:01:23 +02:00
Pavel Labath
3a16829748 [lldb] Switch Section-dumping code to raw_ostream
Also, add a basic test for dumping sections.
2020-05-14 11:59:18 +02:00
Pavel Labath
f665e80c02 [lldb] Don't dissasemble large functions by default
Summary:
If we have a binary without symbol information (and without
LC_FUNCTION_STARTS, if on a mac), then we have to resort to using
heuristics to determine the function boundaries. However, these don't
always work, and so we can easily end up thinking we have functions
which are several megabytes in size. Attempting to (accidentally)
disassemble these can take a very long time spam the terminal with
thousands of lines of disassembly.

This patch works around that problem by adding a sanity check to the
disassemble command. If we are about to disassemble a function which is
larger than a certain threshold, we will refuse to disassemble such a
function unless the user explicitly specifies the number of instructions
to disassemble, uses start/stop addresses for disassembly, or passes the
(new) --force argument.

The threshold is currently fairly aggressive (4000 bytes ~~ 1000
instructions). If needed, we can increase it, or even make it
configurable.

Differential Revision: https://reviews.llvm.org/D79789
2020-05-14 11:52:54 +02:00
Mathias LANG
e16111ce2f [lldb] Also recognize DWARF UTF base types using their size
Summary:
The D programming language has 'char', 'wchar', and 'dchar' as base types,
which are defined as UTF-8, UTF-16, and UTF-32, respectively.

It also has type constructors (e.g. 'const' and 'immutable'),
that leads to D compilers emitting DW_TAG_base_type with DW_ATE_UTF
and name 'char', 'immutable(wchar)', 'const(char)', etc...

Before this patch, DW_ATE_UTF would only recognize types that
followed the C/C++ naming, and emit an error message for the rest, e.g.:
```
error: need to add support for DW_TAG_base_type 'immutable(char)'
encoded with DW_ATE = 0x10, bit_size = 8
```

The code was changed to check the byte size first,
then fall back to the old name-based check.

Reviewers: clayborg, labath

Reviewed By: labath

Subscribers: labath, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D79559
2020-05-13 12:56:13 +02:00
Muhammad Omair Javaid
67087a7b76 [LLDB] Fix typo in xfail decorator assert.test
Fix a typo in earlier xfailed assert.test replace // with #.
2020-05-13 08:53:56 +05:00
Muhammad Omair Javaid
6805a77eb6 [LLDB] Mark some xfails for arm-linux
This patch marks following tests as xfail for arm-linux target.

lldb/test/API/functionalities/load_using_paths/TestLoadUsingPaths.py
lldb/test/API/python_api/thread/TestThreadAPI.py
lldb/test/Shell/Recognizer/assert.test

Bugs have been filed for all of them for the corresponding failing
component.
2020-05-13 08:05:27 +05:00