Commit Graph

1561 Commits

Author SHA1 Message Date
Raphael Isemann 440460f1e7 [lldb][NFC] Move common_completions mapping out of CommandCompletions header. 2020-02-12 09:48:51 +01:00
Raphael Isemann 572fc89742 [lldb][NFC] Move all completer subclasses into source file
They are all implementation details so let's keep them out of the interface.
Also makes this code more readable by keeping these small classes
not spread over header and source file.
2020-02-12 09:08:44 +01:00
Raphael Isemann 477c09043e [lldb][NFC] Remove eCustomCompletion mode
It's not used by anyone. Also if something implements its own
completion it could just not call the method instead of having
a parameter that makes the function a no-op.
2020-02-12 08:34:02 +01:00
Raphael Isemann 62174682a0 [lldb][NFC] Remove support file searching from SourceFileCompleter
This code seems wrong as the directory variable actually contains
the file name. It's also unreachable code as m_include_support_files
is hardcoded to false which is the condition for the surrounding 'if
statement'. Let's just remove all of this.
2020-02-11 18:50:25 +01:00
Med Ismail Bennani cb0c4ee3eb [lldb/test] Add alternate symbol to StackFrame Recognizer
This reimplements commit 6b2979c123 and updates
the tests to reflect the addition of the alternate symbol attribute.

Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
2020-02-11 11:44:37 +01:00
Davide Italiano 6b2979c123 Revert "[lldb] Fix+re-enable Assert StackFrame Recognizer on Linux"
This reverts commit 1a39f1b966 as
it breaks macOS.
2020-02-10 13:27:35 -08:00
Jan Kratochvil 1a39f1b966 [lldb] Fix+re-enable Assert StackFrame Recognizer on Linux
D73303 was failing on Fedora Linux and so it was disabled by Skip the
AssertFrameRecognizer test for Linux.

I find no easy way how to find out if it gets recognized as
`__assert_fail` or `__GI___assert_fail` as during `Process` ctor
libc.so.6 is not yet loaded by the debuggee.

DWARF symbol `__GI___assert_fail` overrides the ELF symbol `__assert_fail`.
While external debug info (=DWARF) gets disabled for testsuite (D55859)
that sure does not apply for real world usage.

Differential Revision: https://reviews.llvm.org/D74252
2020-02-10 10:29:32 +01:00
Adrian McCarthy fb0d2d455f Fix after c25938d
My refactor caused some changes in error reporting that TestAddDsymCommand.py
was checking, so this restores some of the changes to preserve the old
behavior and to un-xfail the affected test.

Differential Revision: https://reviews.llvm.org/D74001
2020-02-04 16:37:22 -08:00
Adrian McCarthy 0e362d82b9 Improve help text for (lldb) target symbols add
There were some missing words and awkward syntax.  I think this is clearer.

Differential Revision: https://reviews.llvm.org/D73589
2020-02-03 14:22:05 -08:00
Adrian McCarthy c25938d57b Refactor CommandObjectTargetSymbolsAdd::AddModuleSymbols
* [NFC] Renamed local `matching_module_list` to `matching_modules` for
conciseness.

* [NFC] Eliminated redundant local variable `num_matches` to reduce the risk
that changes get it out of sync with `matching_modules.GetSize()`.

* Used an early return from case where the symbol file specified matches
multiple modules.  This is a slight behavior change, but it's an improvement:
It didn't make sense to tell the user that the symbol file simultaneously
matched multiple modules and no modules.

* [NFC] Used an early return from the case where no matches are found, to
better align with LLVM coding style.

* [NFC] Simplified call of `AppendWarningWithFormat("%s", stuff)` to
`AppendWarning(stuff)`.  I don't think this adds any copies.  It does
construct a StringRef, but it was going to have to scan the string for the
length anyway.

* [NFC] Removed unnecessary comments and reworded others for clarity.

* Used an early return if the symbol file could not be loaded.  This is a
behavior change because previously it could fail silently.

* Used an early return if the object file could not be retrieved from the
symbol file.  Again, this is a change because now there's an error message.

* [NFC] Eliminated a namespace alias that wasn't particularly helpful.

Differential Revision: https://reviews.llvm.org/D73594
2020-02-03 14:22:05 -08:00
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
Benjamin Kramer adcd026838 Make llvm::StringRef to std::string conversions explicit.
This is how it should've been and brings it more in line with
std::string_view. There should be no functional change here.

This is mostly mechanical from a custom clang-tidy check, with a lot of
manual fixups. It uncovers a lot of minor inefficiencies.

This doesn't actually modify StringRef yet, I'll do that in a follow-up.
2020-01-28 23:25:25 +01:00
Raphael Isemann 243f52b58b [lldb] Cut off unused suffix in CompletionRequest::GetRawLine
The GetRawLine currently returns the full command line used
to create the CompletionRequest. So for example for "foo b[tab] --arg"
it would return the whole string instead of "foo b". Usually
completion code makes the wrong assumption that the cursor is at
the end of the line and handing out the complete line will cause
that people implement completions that also make this assumption.

This patch makes GetRawLine() return only the string until the
cursor and hides the suffix (so that the cursor is always at the
end of this string) and adds another function GetRawLineWithUnusedSuffix
that is specifically the line with the suffix that isn't used by
the CompletionRequest for argument parsing etc.

There is only one user of this new function that actually needs the
suffix and that is the expression command which needs the suffix to
detect if it is in the raw or argument part of the command (by looking
at the "--" separator).
2020-01-28 11:12:22 +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 6672a4f5b6 [lldb/Commands] Fix, rename and document column number arg to breakpoint set.
We were incorrectly parsing the -C argument to breakpoint set as the
column breakpoint, even though according to the help this should be the
breakpoint command. This fixes that by renaming the option to -u, adding
it to help, and adding a test case.

Differential revision: https://reviews.llvm.org/D73284
2020-01-23 12:34:24 -08:00
Jonas Devlieghere 982a77b694 [lldb/Reproducers] Print more info for reproducer status
Reproducer status now prints the capture/replay path. It will also print
the status of auto generation when enabled.
2020-01-15 20:25:44 -08:00
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
Jonas Devlieghere a6faf851f4 [lldb/CommandInterpreter] Remove flag that's always true (NFC)
The 'asynchronously' argument to both GetLLDBCommandsFromIOHandler and
GetPythonCommandsFromIOHandler is true for all call sites. This commit
simplifies the API by dropping it and giving the baton a default
argument.
2020-01-14 22:28:49 -08:00
Med Ismail Bennani df71f92fbb [lldb/Command] Add --force option for `watchpoint delete` command
Currently, there is no option to delete all the watchpoint without LLDB
asking for a confirmation. Besides making the watchpoint delete command
homogeneous with the breakpoint delete command, this option could also
become handy to trigger automated watchpoint deletion i.e. using
breakpoint actions.

rdar://42560586

Differential Revision: https://reviews.llvm.org/D72096

Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
2020-01-04 03:11:15 +01:00
Med Ismail Bennani 4117c8c019 Revert "[lldb/Command] Add --force option for `watchpoint delete` command"
This reverts commit 3620e5f28a.
2020-01-03 02:14:45 +01:00
Med Ismail Bennani 3620e5f28a [lldb/Command] Add --force option for `watchpoint delete` command
Currently, there is no option to delete all the watchpoint without LLDB
asking for a confirmation. Besides making the watchpoint delete command
homogeneous with the breakpoint delete command, this option could also
become handy to trigger automated watchpoint deletion i.e. using
breakpoint actions.

rdar://42560586

Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
2020-01-03 01:51:22 +01:00
Jonas Devlieghere 1562511275 [lldb/ScriptInterpreter] Remove can_reload which is always true (NFC)
The `-r` option for `command script import` is there for legacy
compatibility, however the can_reload flag is always set to true. This
patch removes the flag and any code that relies on it being false.
2019-12-22 21:36:03 -08:00
Jonas Devlieghere bd5c8d167b [lldb/ScriptInterpreter] Unify error message for command script import
Rather than checking for Python explicitly, let the script interpreter
handle things and print an error if the functionality is not supported.
2019-12-22 16:47:28 -08:00
Jonas Devlieghere 68cb7d8542 [lldb/Commands] Honor the scripting language passed (2/2)
This ensures that watchpoint command honors the scripting language
passed with `-s`. Currently the argument ignores the actual language and
only uses it to differentiate between lldb and script commands.
2019-12-21 22:32:13 -08:00
Jonas Devlieghere acdda1344a [lldb/Lua] Add missing boiler plate to ScriptInterpreter.
- Fix enum entry order.
 - Fix missing enum case in CommandObjectBreakpointCommand.
 - Add Lua entry to swtich in LanguageToString and simplify the code.
2019-12-21 21:54:44 -08:00
Jonas Devlieghere 1ff01cfe3e [lldb/Commands] Use the default scripting langauge for BP functions
When a function is used as a breakpoint command, use to the debugger's
default scripting language, unless a language is explicitly specified.
2019-12-21 18:12:37 -08:00
Jonas Devlieghere 5e32eb1c7a [lldb/Commands] Honor the scripting language passed
This ensures that breakpoint command honors the scripting language
passed with `-s`. Currently the argument ignores the actual language and
only uses it to differentiate between lldb and script commands.
2019-12-21 17:35:29 -08:00
Jonas Devlieghere 8983d69144 [lldb/Commands] Fix bogus enum entry and add Lua (NFC)
Fixes a bogus enum value for the scripting language options, adds an
entry for Lua and refactored the code to use an exhaustive switch.
2019-12-21 17:21:32 -08:00
Raphael Isemann 0683250127 [lldb][NFC] Remove unnecessary includes in source/Commands
Summary: This removes most of unnecessary includes in the `source/Commands` directory. This was generated by IWYU and a script that fixed all the bogus reports from IWYU. Patch is tested on Linux and macOS.

Reviewers: JDevlieghere

Reviewed By: JDevlieghere

Subscribers: krytarowski, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D71489
2019-12-16 08:59:08 +01:00
Jonas Devlieghere 4e26cf2cfb [lldb/CMake] Rename LLDB_DISABLE_PYTHON to LLDB_ENABLE_PYTHON
This matches the naming scheme used by LLVM and all the other optional
dependencies in LLDB.

Differential revision: https://reviews.llvm.org/D71482
2019-12-13 13:41:11 -08:00
Jonas Devlieghere a4304f96d6 [lldb/CMake] Rename LLDB_DISABLE_CURSES to LLDB_ENABLE_CURSES
This matches the naming scheme used by LLVM.

Differential revision: https://reviews.llvm.org/D71377
2019-12-12 09:13:31 -08:00
Eric Christopher 1d41d1bcdf Revert "Temporarily revert [lldb] e81268d - [lldb/Reproducers] Support multiple GDB remotes"
On multiple retry this issue won't duplicate - will revisit with author if
duplication works again.

This reverts commit c9e0b354e2.
2019-12-10 15:04:45 -08:00
Eric Christopher c9e0b354e2 Temporarily revert [lldb] e81268d - [lldb/Reproducers] Support multiple GDB remotes
This was causing a crash in opt+assert builds on linux and a follow-up
message was posted.

This reverts commit e81268d03e
2019-12-10 12:29:46 -08:00
Jonas Devlieghere 59998b7b7f [lldb/Host] Use Host/Config.h entries instead of a global define.
As suggested by Pavel in a code review:

> Can we replace this (and maybe python too, while at it) with a
> Host/Config.h entry? A global definition means that one has to
> recompile everything when these change in any way, whereas in
> practice only a handful of files need this..

Differential revision: https://reviews.llvm.org/D71280
2019-12-10 11:16:52 -08:00
Jonas Devlieghere e81268d03e [lldb/Reproducers] Support multiple GDB remotes
When running the test suite with always capture on, a handful of tests
are failing because they have multiple targets and therefore multiple
GDB remote connections. The current reproducer infrastructure is capable
of dealing with that.

This patch reworks the GDB remote provider to support multiple GDB
remote connections, similar to how the reproducers support shadowing
multiple command interpreter inputs. The provider now keeps a list of
packet recorders which deal with a single GDB remote connection. During
replay we rely on the order of creation to match the number of packets
to the GDB remote connection.

Differential revision: https://reviews.llvm.org/D71105
2019-12-10 11:16:52 -08:00
Raphael Isemann 4dac97eb1e [lldb][NFC] Migrate FileSpec::Dump to raw_ostream 2019-12-06 09:40:42 +01:00
Pavel Labath 532290e69f [lldb] s/FileSpec::Equal/FileSpec::Match
Summary:
The FileSpec class is often used as a sort of a pattern -- one specifies
a bare file name to search, and we check if in matches the full file
name of an existing module (for example).

These comparisons used FileSpec::Equal, which had some support for it
(via the full=false argument), but it was not a good fit for this job.

For one, it did a symmetric comparison, which makes sense for a function
called "equal", but not for typical searches (when searching for
"/foo/bar.so", we don't want to find a module whose name is just
"bar.so"). This resulted in patterns like:
    if (FileSpec::Equal(pattern, file, pattern.GetDirectory()))
which would request a "full" match only if the pattern really contained
a directory. This worked, but the intended behavior was very unobvious.

On top of that, a lot of the code wanted to handle the case of an
"empty" pattern, and treat it as matching everything. This resulted in
conditions like:
    if (pattern && !FileSpec::Equal(pattern, file, pattern.GetDirectory())
which are nearly impossible to decipher.

This patch introduces a FileSpec::Match function, which does exactly
what most of FileSpec::Equal callers want, an asymmetric match between a
"pattern" FileSpec and a an actual FileSpec. Empty paterns match
everything, filename-only patterns match only the filename component.

I've tried to update all callers of FileSpec::Equal to use a simpler
interface. Those that hardcoded full=true have been changed to use
operator==. Those passing full=pattern.GetDirectory() have been changed
to use FileSpec::Match.

There was also a handful of places which hardcoded full=false. I've
changed these to use FileSpec::Match too. This is a slight change in
semantics, but it does not look like that was ever intended, and it was
more likely a result of a misunderstanding of the "proper" way to use
FileSpec::Equal.

[In an ideal world a "FileSpec" and a "FileSpec pattern" would be two
different types, but given how widespread FileSpec is, it is unlikely
we'll get there in one go. This at least provides a good starting point
by centralizing all matching behavior.]

Reviewers: teemperor, JDevlieghere, jdoerfert

Subscribers: emaste, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D70851
2019-12-04 10:42:32 +01:00
Raphael Isemann 2f1e7b3d01 [lldb][NFC] Migrate to raw_ostream in ArchSpec::DumpTriple
Reviewers: labath, davide

Reviewed By: davide

Subscribers: clayborg, JDevlieghere, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D70979
2019-12-04 08:28:52 +01:00
Raphael Isemann 7caa17caf8 [lldb][NFC] Move Curses interface implementation to own file
Summary:
The IOHandler class source file is currently around 4600 LOC. However only 200
of these lines are concerned with the actual IOHandler class and the rest are the
implementations for Editline, IOHandlerConfirm and the Curses interface. All these
large features also cause that the IOHandler (which is in Core) has a large set of dependencies
on other parts of LLDB.

This patch splits out the code for the curses interface into its own file. This way
the simple IOHandler code is no longer buried in-between much larger functionalities.

Next up is splitting out the other IOHandlers into their own files and then move them
to more appropriate parts of LLDB.

Reviewers: labath, clayborg, JDevlieghere

Reviewed By: labath

Subscribers: mgorny, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D70946
2019-12-03 14:01:18 +01:00
Raphael Isemann 4f728bfc13 [lldb][NFC] Use raw_ostream instead of Stream in Baton::GetDescription
Removing raw_ostream here is getting us closer to removing LLDB's Stream
class.
2019-12-02 13:27:21 +01:00
Raphael Isemann d752b75d7f [lldb][NFC] Simplify regex_chars in CommandCompletions 2019-11-29 12:34:23 +01:00
Pavel Labath 38870af859 [lldb] Remove FileSpec->CompileUnit inheritance
Summary:
CompileUnit is a complicated class. Having it be implicitly convertible
to a FileSpec makes reasoning about it even harder.

This patch replaces the inheritance by a simple member and an accessor
function. This avoid the need for casting in places where one needed to
force a CompileUnit to be treated as a FileSpec, and does not add much
verbosity elsewhere.

It also fixes a bug where we were wrongly comparing CompileUnit& and a
CompileUnit*, which compiled due to a combination of this inheritance
and the FileSpec*->FileSpec implicit constructor.

Reviewers: teemperor, JDevlieghere, jdoerfert

Subscribers: lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D70827
2019-11-29 11:44:45 +01:00
Alexandre Ganea b4dfc5508f [LLDB] Fix wrong argument in CommandObjectThreadStepWithTypeAndScope
Differential Revision: https://reviews.llvm.org/D70448
2019-11-28 14:00:56 -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 bb090bb1ca [Reproducer] Make 'reproducer xcrash' behave the same during capture & replay
There's no point in preventing this command from running during replay.
We should simulate the same crash as during capture.
2019-11-21 13:34:04 -08:00
Adrian McCarthy 3b69f0c555 [NFC] Refactor and improve comments in CommandObjectTarget
Made small improvements while debugging through
CommandObjectTarget::AddModuleSymbols.

1.  Refactored error case for an early out, reducing the indentation of
the rest of this long function.
2.  Clarified some comments by correcting spelling and punctuation.
3.  Reduced duplicate code at the end of the function.

Tested with `ninja check-lldb`

Differential Review: https://reviews.llvm.org/D70458
2019-11-21 08:37:35 -08:00
Jonas Devlieghere 25f33d8318 [Reproducer] Limit signals to macro define sin <csignal>
SIGBUS is not part of the signal macros defined in the header <csignal>.
2019-11-20 14:28:37 -08:00
Jonas Devlieghere c8dfe90729 [Reproducer] Generate LLDB reproducer on crash
This patch hooks the reproducer infrastructure with the signal handlers.
When lldb crashes with reproducers capture enabled, it will now generate
the reproducer and print a short message the standard out. This doesn't
affect the pretty stack traces, which are still printed before.

This patch also introduces a new reproducer sub-command that
intentionally raises a given signal to test the reproducer signal
handling.

Currently the signal handler is doing too much work. Instead of copying
over files into the reproducers in the signal handler, we should
re-invoke ourselves with a special command line flag that looks at the
VFS mapping and performs the copy.

This is a NO-OP when reproducers are disabled.

Differential revision: https://reviews.llvm.org/D70474
2019-11-20 13:14:16 -08:00
Jonas Devlieghere 36eea5c31f [Reproducer] Namespace the reproducer dump options.
Make it clear that the current reproducer options are for dumping.
2019-11-19 16:19:43 -08:00
Jonas Devlieghere 0cf86da174 [Reproducer] Quit the debugger after generating a reproducer
Currently nothing prevents you from continuing your debug session after
generating the reproducer. This can cause the reproducer to end up in an
inconsistent state. Most of the time this doesn't matter, but I want to
prevent this from causing bugs in the future.
2019-11-11 14:29:53 -08:00