676 Commits

Author SHA1 Message Date
Saleem Abdulrasool 3775be2d8e Target: correct the return value for GetImageAddrFromToken
We would return `LLDB_INVALID_IMAGE_TOKEN` for the address rather than
the correct value of `LLDB_IMAGE_ADDRESS`.  This would result in the
check for the return value to silently pass on x64 as the invalid
address and invalid token are of different sizes (`size_t` vs
`uintprr_t`).  This corrects the return value to `LLDB_INVALID_ADDRESS`
and addresses the rest to reset the mapped address to the invalid value.

This was found by inspection when trying to implement module support for
Windows.
2020-04-06 17:37:57 -07:00
Jim Ingham 1893065d7b Allow the ThreadPlanStackMap to hold the thread plans for threads
that were not reported by the OS plugin.  To facilitate this, move
adding/updating the ThreadPlans for a Thread to the ThreadPlanStackMap.
Also move dumping thread plans there as well.

Added some tests for "thread plan list" and "thread plan discard" since
I didn't seem to have written any originally.

Differential Revision: https://reviews.llvm.org/D76814
2020-04-03 14:56:28 -07:00
Jim Ingham 61e8e6882d Move thread plan stacks into the Process, indexed by TID.
Differential Revision: https://reviews.llvm.org/D75880
2020-04-03 14:56:28 -07:00
Pavel Labath 451741a9d7 [lldb] Change Communication::SetConnection to take a unique_ptr
The function takes ownership of the object. This makes that explicit,
and avoids unowned pointers floating around.
2020-04-02 14:42:25 +02:00
Jonas Devlieghere 638b06cf29 [lldb/Utility] Replace ProcessInstanceInfoList with std::vector. (NFCI)
Replace ProcessInstanceInfoList with std::vector<ProcessInstanceInfo>
and update the call sites.
2020-03-12 14:10:25 -07:00
Pavel Labath 04592d5b23 [lldb] s/ExecutionContext/Target in Disassembler
Some functions in this file only use the "target" component of an
execution context. Adjust the argument lists to reflect that.

This avoids some defensive null checks and simplifies most of the
callers.
2020-03-05 14:46:39 +01:00
Med Ismail Bennani 7ebe9cc4fc [lldb/Target] Add Assert StackFrame Recognizer
When a thread stops, this checks depending on the platform if the top frame is
an abort stack frame. If so, it looks for an assert stack frame in the upper
frames and set it as the most relavant frame when found.

To do so, the StackFrameRecognizer class holds a "Most Relevant Frame" and a
"cooked" stop reason description. When the thread is about to stop, it checks
if the current frame is recognized, and if so, it fetches the recognized frame's
attributes and applies them.

rdar://58528686

Differential Revision: https://reviews.llvm.org/D73303

Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
2020-02-06 18:27:48 +01:00
Pavel Labath 98b273c893 Revert "[lldb/Target] Add Assert StackFrame Recognizer"
This reverts commit 2b7f32892b because of test
failures due to dangling pointers.
2020-02-05 15:51:38 -08:00
Med Ismail Bennani 2b7f32892b [lldb/Target] Add Assert StackFrame Recognizer
When a thread stops, this checks depending on the platform if the top frame is
an abort stack frame. If so, it looks for an assert stack frame in the upper
frames and set it as the most relavant frame when found.

To do so, the StackFrameRecognizer class holds a "Most Relevant Frame" and a
"cooked" stop reason description. When the thread is about to stop, it checks
if the current frame is recognized, and if so, it fetches the recognized frame's
attributes and applies them.

rdar://58528686

Differential Revision: https://reviews.llvm.org/D73303

Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
2020-02-05 17:49:13 +01:00
Alex Langford 3014efe071 [lldb] Remove unused parameter from ValueObject::GetExpressionPath
I previously removed the code in ValueObject::GetExpressionPath that
took advantage of the parameter `qualify_cxx_base_classes`. As a result,
this is now unused and can be removed.
2020-02-03 10:50:38 -08:00
Med Ismail Bennani 954d04295b Revert "[lldb/Target] Add Assert StackFrame Recognizer"
This reverts commit 03a6b858fd.

The test doesn't pass on Debian.
2020-01-28 18:40:08 +01:00
Med Ismail Bennani 03a6b858fd [lldb/Target] Add Assert StackFrame Recognizer
When a thread stops, this checks depending on the platform if the top frame is
an abort stack frame. If so, it looks for an assert stack frame in the upper
frames and set it as the most relavant frame when found.

To do so, the StackFrameRecognizer class holds a "Most Relevant Frame" and a
"cooked" stop reason description. When the thread is about to stop, it checks
if the current frame is recognized, and if so, it fetches the recognized frame's
attributes and applies them.

rdar://58528686

Differential Revision: https://reviews.llvm.org/D73303

Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
2020-01-28 18:21:29 +01:00
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
Jonas Devlieghere 7ce2de2ce4 [lldb/Debugger] Rename IO handler methods to be more meaningful (NFC)
Make it clear form the method names whether they are synchronous or
asynchronous.
2020-01-15 14:58:16 -08:00
Pavel Labath 5c4661b778 [lldb] Modernize OptionValue::SetValueChangedCallback
instead of a function pointer + void*, take a std::function. This
removes a bunch of repetitive, unsafe void* casts.
2020-01-09 14:17:17 +01:00
Jim Ingham 434905b97d Run all threads when extending a next range over a call.
If you don't do this you end up running arbitrary code with
only one thread allowed to run, which can cause deadlocks.

<rdar://problem/56422478>

Differential Revision: https://reviews.llvm.org/D71440
2019-12-16 17:45:21 -08:00
Davide Italiano cec82634a4 [Process] GetLanguageRuntimes() takes an argument that's always constant.
And arguably `retry_if_null` isn't really descriptive of what
the flag did anyway.
2019-12-03 16:54:55 -08:00
Lawrence D'Anna f913fd6eb0 factor out an abstract base class for File
Summary:
This patch factors out File as an abstract base
class and moves most of its actual functionality into
a subclass called NativeFile.   In the next patch,
I'm going to be adding subclasses of File that
don't necessarily have any connection to actual OS files,
so they will not inherit from NativeFile.

This patch was split out as a prerequisite for
https://reviews.llvm.org/D68188

Reviewers: JDevlieghere, jasonmolenda, labath

Reviewed By: labath

Subscribers: lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D68317

llvm-svn: 373564
2019-10-03 04:31:46 +00:00
Jim Ingham 58c3235ee9 Allow the internal-state-thread free access to the TargetAPI mutex.
It is always doing work on behalf of another thread that presumably
has the mutex, so if it is calling SB API's it should have free access
to the mutex.  This is the same decision as we made earlier with the
process RunLock.

Differential Revision: https://reviews.llvm.org/D68174

llvm-svn: 373280
2019-10-01 00:47:25 +00:00
Lawrence D'Anna 7ca15ba73f remove File::SetStream(), make new files instead.
Summary:
This patch removes File::SetStream() and File::SetDescriptor(),
and replaces most direct uses of File with pointers to File.
Instead of calling SetStream() on a file, we make a new file and
replace it.

My ultimate goal here is to introduce a new API class SBFile, which
has full support for python io.IOStream file objects.   These can
redirect read() and write() to python code, so lldb::Files will
need a way to dispatch those methods.   Additionally it will need some
form of sharing and assigning files, as a SBFile will be passed in and
assigned to the main IO streams of the debugger.

In my prototype patch queue, I make File itself copyable and add a
secondary class FileOps to manage the sharing and dispatch.  In that
case SBFile was a unique_ptr<File>.
(here: https://github.com/smoofra/llvm-project/tree/files)

However in review, Pavel Labath suggested that it be shared_ptr instead.
(here: https://reviews.llvm.org/D67793)

In order for SBFile to use shared_ptr<File>, everything else should
as well.

If this patch is accepted, I will make SBFile use a shared_ptr
I will remove FileOps from future patches and use subclasses of File
instead.

Reviewers: JDevlieghere, jasonmolenda, zturner, jingham, labath

Reviewed By: labath

Subscribers: lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D67891

llvm-svn: 373090
2019-09-27 14:33:35 +00:00
Jonas Devlieghere 948786c929 File::SetDescriptor() should require options
lvm_private::File::GetStream() can fail if m_options == 0

It's not clear from the header a File created with a descriptor will be
not be usable by many parts of LLDB unless SetOptions is also called,
but it is.

This is because those parts of LLDB rely on GetStream() to use the
file, and that in turn relies on calling fdopen on the descriptor. When
calling fdopen, GetStream relies on m_options to determine the access
mode. If m_options has never been set, GetStream() will fail.

This patch adds options as a required argument to File::SetDescriptor
and the corresponding constructor.

Patch by: Lawrence D'Anna

Differential revision: https://reviews.llvm.org/D67792

llvm-svn: 372652
2019-09-23 20:36:46 +00:00
Alex Langford 5b2b38e053 [Target] Move InferiorCall to Process
Summary:
InferiorCall is only ever used in Process, and it is not specific to
POSIX. By moving it to Process, we can remove all dependencies on plugins from
Process. Moving InferiorCall to Process seems to achieve this quite well.
Additionally, the name InferiorCall is a little vague now, so we rename
it something a bit more specific.

Reviewers: JDevlieghere, clayborg, compnerd, labath

Subscribers: lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D67472

llvm-svn: 371796
2019-09-13 00:02:05 +00:00
Michal Gorny 3276fffc17 [lldb] Replace std::call_once() with llvm::call_once()
Remove the single instance of std::call_once() in lldbTarget library
with llvm::call_once().  The former fails to build on NetBSD when
combined with llvm::once_flag (which replaced std::once_flag
in r369618), and combining the two is probably generally incorrect
anyway.

llvm-svn: 370748
2019-09-03 12:31:24 +00:00
Pavel Labath 3d4f7655e7 Remove usage of usleep in generic code
This function is not portable, and there are only a handful of usages of
it anyway. Replacing it with std::this_thread::sleep_for enables us to
get rid of the compatibility code in PosixApi.h.

llvm-svn: 367814
2019-08-05 08:23:25 +00:00
Jordan Rupprecht 6a253d378b [lldb] Qualify includes of Properties[Enum].inc files. NFC
Summary:
This is a bit more explicit, and makes it possible to build LLDB without
varying the -I lines per-directory.
(The latter is useful because many build systems only allow this to be
configured per-library, and LLDB is insufficiently layered to be split into
multiple libraries on stricter build systems).

(My comment on D65185 has some more context)

Reviewers: JDevlieghere, labath, chandlerc, jdoerfert

Reviewed By: labath

Subscribers: mgorny, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D65397

Patch by Sam McCall!

llvm-svn: 367241
2019-07-29 17:22:10 +00:00