280 Commits

Author SHA1 Message Date
Raphael Isemann aef982e35a [lldb] Don't dump the frame in SBTarget::EvaluateExpression in LLDB_CONFIGURATION_DEBUG
Summary:
Dumping the frame using the user-set format could cause that a debug LLDB doesn't behave as a release LLDB,
which could potentially break replaying a reproducer.

Also it's kinda strange that the frame format set by the user is used in the internal log output.

Reviewers: JDevlieghere

Reviewed By: JDevlieghere

Differential Revision: https://reviews.llvm.org/D76685
2020-03-24 20:16:09 +01:00
Walter Erquinigo ca69be218c Create basic SBEnvironment class 2020-03-23 19:23:33 -07:00
Walter Erquinigo 318a0caf9a Revert "Create basic SBEnvironment class"
This reverts commit fd868f517d.
2020-03-23 18:20:10 -07:00
Walter Erquinigo fd868f517d Create basic SBEnvironment class 2020-03-23 17:59:06 -07:00
Fred Riss cd7b45057c [lldb/API] Make Launch(Simple) use args and env from target properties
Summary:
When no arguments or environment is provided to SBTarget::LaunchSimple,
make it use the values surrently set in the target properties. You can
get the current behavior back by passing an empty array instead.

It seems like using the target defaults is a much more intuitive
behavior for those APIs. It's unllikely that anyone passed NULL/None to
this API after having set properties in order to explicitely ignore them.

One direct application of this change is within the testsuite. We have
plenty of tests calling LaunchSimple and passing None as environment.
If you passed --inferior-env to dotest.py to, for example, set
(DY)LD_LIBRARY_PATH, it wouldn't be taken into account.

Reviewers: jingham, labath, #libc_abi!

Subscribers: libcxx-commits, lldb-commits

Tags: #lldb, #libc_abi

Differential Revision: https://reviews.llvm.org/D76045
2020-03-23 07:58:33 -07:00
Walter Erquinigo 7ece7c0faa Revert "Create basic SBEnvironment class"
This reverts commit 34c0759f84.
2020-03-20 19:25:27 -07:00
Walter Erquinigo 34c0759f84 Create basic SBEnvironment class
Summary: Inspired by https://reviews.llvm.org/D74636, I'm introducing a basic version of Environment in the API. More functionalities can be added as needed.

Reviewers: labath, clayborg

Subscribers: mgorny, lldb-commits, diazhector98

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D76111
2020-03-20 18:51:25 -07:00
Adrian Prantl 0a5fbf3093 Temporarily Revert "Create basic SBEnvironment class"
while investigating bot breakage.

This reverts commit 2dec82652e.
2020-03-20 16:47:50 -07:00
Walter Erquinigo 2dec82652e Create basic SBEnvironment class
Summary: Inspired by https://reviews.llvm.org/D74636, I'm introducing a basic version of Environment in the API. More functionalities can be added as needed.

Reviewers: labath, clayborg

Subscribers: mgorny, lldb-commits, diazhector98

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D76111
2020-03-20 14:38:50 -07:00
Med Ismail Bennani eefda18227 [lldb/Plugins] Move SBTarget::GetExtendedCrashInformation to SBProcess
This patch moves the SB API method GetExtendedCrashInformation from
SBTarget to SBProcess since it only makes sense to call this method on a
sane process which might not be the case on a SBTarget object.

It also addresses some feedbacks received after landing the first patch
for the 'crash-info' feature.

Differential Revision: https://reviews.llvm.org/D75049

Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
2020-02-24 23:37:04 +01:00
Med Ismail Bennani d7c403e640 [lldb/Plugins] Add ability to fetch crash information on crashed processes
Currently, in macOS, when a process crashes, lldb halts inside the
implementation disassembly without yielding any useful information.
The only way to get more information is to detach from the process, then wait
for ReportCrash to generate a report, find the report, then see what error
message was included in it. Instead of waiting for this to happen, lldb could
locate the error_string and make it available to the user.

This patch addresses this issue by enabling the user to fetch extended
crash information for crashed processes using `process status --verbose`.

Depending on the platform, this will try to gather different crash information
into an structured data dictionnary. This dictionnary is generic and extensible,
as it contains an array for each different type of crash information.

On Darwin Platforms, lldb will iterate over each of the target's images,
extract their `__crash_info` section and generated a StructuredData::Array
containing, in each entry, the module spec, its UUID, the crash messages
and the abort cause. The array will be inserted into the platform's
`m_extended_crash_info` dictionnary and `FetchExtendedCrashInformation` will
return its JSON representation like this:

```
{
  "crash-info annotations": [
    {
      "abort-cause": 0,
      "image": "/usr/lib/system/libsystem_malloc.dylib",
      "message": "main(76483,0x1000cedc0) malloc: *** error for object 0x1003040a0: pointer being freed was not allocated",
      "message2": "",
      "uuid": "5747D0C9-900D-3306-8D70-1E2EA4B7E821"
    },
    ...
  ],
  ...
}
```

This crash information can also be fetched using the SB API or lldb-rpc protocol
using SBTarget::GetExtendedCrashInformation().

rdar://37736535

Differential Revision: https://reviews.llvm.org/D74657

Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
2020-02-21 22:44:36 +01:00
Jonas Devlieghere 866b7a6519 [lldb] Replace empty ctor en dtor bodies with =default (NFC)
Use = default instead of empty constructor and destructor bodies in the
API layer.
2020-02-17 22:58:26 -08:00
Jonas Devlieghere b453caf111 [lldb/Reproducers] Change the way we instrument void* arguments
The reproducer instrumentation cannot automatically serialize and
deserialize void* arguments. Currently we deal with this by explicitly
preventing these methods from being instrumented. This has the undesired
side effect of breaking replay when that method returns a value later
used by another SB API call.

The solution is to change our approach and instrument these methods.
Instead of using the DUMMY macro, we just make (de)serialization of the
void pointer a NOOP and always return a nullptr.
2020-02-04 19:05:13 -08:00
Raphael Isemann 808142876c [lldb][NFC] Fix all formatting errors in .cpp file headers
Summary:
A *.cpp file header in LLDB (and in LLDB) should like this:
```
//===-- TestUtilities.cpp -------------------------------------------------===//
```
However in LLDB most of our source files have arbitrary changes to this format and
these changes are spreading through LLDB as folks usually just use the existing
source files as templates for their new files (most notably the unnecessary
editor language indicator `-*- C++ -*-` is spreading and in every review
someone is pointing out that this is wrong, resulting in people pointing out that this
is done in the same way in other files).

This patch removes most of these inconsistencies including the editor language indicators,
all the different missing/additional '-' characters, files that center the file name, missing
trailing `===//` (mostly caused by clang-format breaking the line).

Reviewers: aprantl, espindola, jfb, shafik, JDevlieghere

Reviewed By: JDevlieghere

Subscribers: dexonsmith, wuzish, emaste, sdardis, nemanjai, kbarton, MaskRay, atanasyan, arphaman, jfb, abidh, jsji, JDevlieghere, usaxena95, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D73258
2020-01-24 08:52:55 +01:00
Joseph Tremoulet 95b2e516bd Change Target::FindBreakpointsByName to return Expected<vector>
Summary:
Using a BreakpointList corrupts the breakpoints' IDs because
BreakpointList::Add sets the ID, so use a vector instead, and
update the signature to return the vector wrapped in an
llvm::Expected which can propagate any error from the inner
call to StringIsBreakpointName.

Note that, despite the similar name, SBTarget::FindBreakpointsByName
doesn't suffer the same problem, because it uses a SBBreakpointList,
which is more like a BreakpointIDList than a BreakpointList under the
covers.

Add a check to TestBreakpointNames that, without this fix, notices the
ID getting mutated and fails.

Reviewers: jingham, JDevlieghere

Reviewed By: JDevlieghere

Subscribers: lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D70907
2019-12-04 09:57:15 -05:00
Raphael Isemann d1782133d9 [lldb][NFC] Allow range-based for-loops on VariableList
Summary:
Adds support for doing range-based for-loops on LLDB's VariableList and
modernises all the index-based for-loops in LLDB where possible.

Reviewers: labath, jdoerfert

Reviewed By: labath

Subscribers: JDevlieghere, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D70668
2019-11-25 15:03:46 +01:00
Jonas Devlieghere cfca0056f0 [lldb] Remove dead code from STLUtils.h 2019-11-06 15:06:29 -08:00
Adrian Prantl 1ad655e255 Modernize the rest of the Find.* API (NFC)
This patch removes the size_t return value and the append parameter
from the remainder of the Find.* functions in LLDB's internal API. As
in the previous patches, this is motivated by the fact that these
parameters aren't really used, and in the case of the append parameter
were frequently implemented incorrectly.

Differential Revision: https://reviews.llvm.org/D69119

llvm-svn: 375160
2019-10-17 19:56:40 +00:00
Adrian Prantl bf9d84c014 Remove size_t return parameter from FindTypes
In r368345 I accidentally introduced a regression that would
over-report the number of matches found by FindTypes if the
DeclContext Filter was hit.

This patch simply removes the size_t return parameter altogether —
it's not that useful.

rdar://problem/55500457

Differential Revision: https://reviews.llvm.org/D68169

llvm-svn: 373344
2019-10-01 15:40:41 +00:00
Jan Kratochvil 5aa1d81969 Code cleanup: Change FormattersContainer::KeyType from SP to rvalue
There is now std::shared_ptr passed around which is expensive for manycore
CPUs. Most of the times (except for 3 cases) it is now just std::moved with no
CPU locks needed. It also makes it possible to sort the keys (which is now not
needed much after D66398).

Differential revision: https://reviews.llvm.org/D67049

llvm-svn: 370863
2019-09-04 09:47:18 +00:00
Jonas Devlieghere a8f3ae7c9c [LLDB] Migrate llvm::make_unique to std::make_unique
Now that we've moved to C++14, we no longer need the llvm::make_unique
implementation from STLExtras.h. This patch is a mechanical replacement
of (hopefully) all the llvm::make_unique instances across the monorepo.

Differential revision: https://reviews.llvm.org/D66259

llvm-svn: 368933
2019-08-14 22:19:23 +00:00
Alex Langford 70402bfc46 [API] Remove use of ClangASTContext from SBTarget
Summary:
The methods to find types in a Target aren't clang specific and are
pretty generalizable to type systems. Additionally, to support some of
the use cases in SBTarget, I've added a "GetScratchTypeSystems" method
to Target to support getting all type systems for a target we are
debugging.

Differential Revision: https://reviews.llvm.org/D64964

llvm-svn: 367480
2019-07-31 20:47:38 +00:00
Jonas Devlieghere 63e5fb76ec [Logging] Replace Log::Printf with LLDB_LOG macro (NFC)
This patch replaces explicit calls to log::Printf with the new LLDB_LOGF
macro. The macro is similar to LLDB_LOG but supports printf-style format
strings, instead of formatv-style format strings.

So instead of writing:

  if (log)
    log->Printf("%s\n", str);

You'd write:

  LLDB_LOG(log, "%s\n", str);

This change was done mechanically with the command below. I replaced the
spurious if-checks with vim, since I know how to do multi-line
replacements with it.

  find . -type f -name '*.cpp' -exec \
  sed -i '' -E 's/log->Printf\(/LLDB_LOGF\(log, /g' "{}" +

Differential revision: https://reviews.llvm.org/D65128

llvm-svn: 366936
2019-07-24 17:56:10 +00:00
Alex Langford 8055cbc449 [Symbol] Add DeclVendor::FindTypes
Summary:
Following up on the plan I outlined in D63622, we can remove the
dependence on clang in all the places where we only want to find the
types from the DeclVendor. This means that currently DeclVendor depends
on clang, but centralizing the dependency makes it easier to refactor
cleanly.

Differential Revision: https://reviews.llvm.org/D63853

llvm-svn: 364962
2019-07-02 19:53:07 +00:00
Alex Langford 11cfa92a19 [Target] Hoist LanguageRuntime::GetDeclVendor
Summary:
It's possible that each LanguageRuntime could have its own DeclVendor,
so let's hoist that out of ObjCLanguageRuntime into LanguageRuntime.

Additionally, this gives the opportunity to remove SBTarget's dependency
on ObjCLanguageRuntime.

Reviewers: JDevlieghere, labath, compnerd, davide

Subscribers: lldb-commits

Differential Revision: https://reviews.llvm.org/D63622

llvm-svn: 364229
2019-06-24 20:33:09 +00:00