Commit Graph

323 Commits

Author SHA1 Message Date
Enrico Granata b82825b6d5 Fix an issue where LLDB was not masking enough bits off of objc classes data() pointers, effectively rendering us unable to generate descriptors for some classes
Fixes rdar://27758358

llvm-svn: 281282
2016-09-13 00:22:49 +00:00
Ed Maste 1c365dc268 Fix -Wcovered-switch-default warning in AppleObjCRuntimeV2.cpp
The switch coveres all possible values. If a new one is added in the
future the compiler will start warning, providing a notification that
the switch needs updating.

llvm-svn: 280933
2016-09-08 13:17:42 +00:00
Kate Stone b9c1b51e45 *** This commit represents a complete reformatting of the LLDB source code
*** to conform to clang-format’s LLVM style.  This kind of mass change has
*** two obvious implications:

Firstly, merging this particular commit into a downstream fork may be a huge
effort.  Alternatively, it may be worth merging all changes up to this commit,
performing the same reformatting operation locally, and then discarding the
merge for this particular commit.  The commands used to accomplish this
reformatting were as follows (with current working directory as the root of
the repository):

    find . \( -iname "*.c" -or -iname "*.cpp" -or -iname "*.h" -or -iname "*.mm" \) -exec clang-format -i {} +
    find . -iname "*.py" -exec autopep8 --in-place --aggressive --aggressive {} + ;

The version of clang-format used was 3.9.0, and autopep8 was 1.2.4.

Secondly, “blame” style tools will generally point to this commit instead of
a meaningful prior commit.  There are alternatives available that will attempt
to look through this change and find the appropriate prior commit.  YMMV.

llvm-svn: 280751
2016-09-06 20:57:50 +00:00
Zachary Turner 6c978aa9da Remove unused variables.
Patch by Taras Tsugrii

llvm-svn: 280283
2016-08-31 20:03:14 +00:00
Enrico Granata 3630a287a6 Add logic to the ObjC runtime in LLDB to extract the pointer values of the two singleton (pairtons?) instances of __NSCFBoolean that represent true and false
This is useful because that knowledge will in turn allow no-code-running formatting of boolean NSNumbers; but that's a commit that will have to wait Monday..

llvm-svn: 279353
2016-08-20 00:48:11 +00:00
Todd Fiala e1cfbc7942 Decoupled Options from CommandInterpreter.
Options used to store a reference to the CommandInterpreter instance
in the base Options class.  This made it impossible to parse options
independent of a CommandInterpreter.

This change removes the reference from the base class.  Instead, it
modifies the options-parsing-related methods to take an
ExecutionContext pointer, which the options may inspect if they need
to do so.

Closes https://reviews.llvm.org/D23416
Reviewers: clayborg, jingham

llvm-svn: 278440
2016-08-11 23:51:28 +00:00
Zachary Turner f343968f5d Delete Host/windows/win32.h
It's always hard to remember when to include this file, and
when you do include it it's hard to remember what preprocessor
check it needs to be behind, and then you further have to remember
whether it's windows.h or win32.h which you need to include.

This patch changes the name to PosixApi.h, which is more appropriately
named, and makes it independent of any preprocessor setting.

There's still the issue of people not knowing when to include this,
because there's not a well-defined set of things it exposes other
than "whatever is missing on Windows", but at least this should
make it less painful to fix when problems arise.

This patch depends on LLVM revision r278170.

llvm-svn: 278177
2016-08-09 23:06:08 +00:00
Enrico Granata 0765abf772 The lack of classes in the hash table is not an error - it's very legitimately possible for a process to define no ObjC classes of its own. Discovered by debugging /bin/ls
llvm-svn: 277897
2016-08-06 00:57:07 +00:00
Enrico Granata 0f4f0c5d53 Tweaks to the reporting of "missing dyld shared cached" that make it easier to grab logs when such issues occur, make the logs more helpful, and also tweaks to the user messaging to make it easier to pinpoint an investigation avenue early on
llvm-svn: 277844
2016-08-05 18:09:50 +00:00
Enrico Granata 99bd2de619 Fix an issue where LLDB would detect an empty shared cache - which is legitimate albeit suboptimal - and warn about being unable to fetch ObjC class information, even though class data was actually properly loaded from the dynamic hashmap
Only ever warn about missing ObjC runtime class data if one either can't run the expressions to obtain such data, or the total count of classes is below a threshold that makes things sound really suspicious

Fixes rdar://27438500

llvm-svn: 276220
2016-07-21 00:13:40 +00:00
Kate Stone 7428a18c1e LLDB help content has accumulated over time without a recent attempt to
review it for consistency, accuracy, and clarity. These changes attempt to
address all of the above while keeping the text relatively terse.

<rdar://problem/24868841>

llvm-svn: 275485
2016-07-14 22:03:10 +00:00
Stephane Sezer 1852a78416 Fix a check in the objc trampoline handler
Summary:
The function FunctionCaller::WriteFunctionArguments returns false on
errors, so they should check for the false return value.

Change by Walter Erquinigo <a20012251@gmail.com>

Reviewers: jingham, clayborg

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D22278

llvm-svn: 275287
2016-07-13 17:34:26 +00:00
Jim Ingham 13683c65cd Don't cache the stret/vrs. non-stret code pointer as static data in the runtime.
It belongs in the instance, since then when you change architectures it can be adjusted
appropriately.

<rdar://problem/26308079>

llvm-svn: 270938
2016-05-26 23:49:49 +00:00
Saleem Abdulrasool bb19a13c0b second pass over removal of Mutex and Condition
llvm-svn: 270024
2016-05-19 05:13:57 +00:00
Saleem Abdulrasool 16ff860469 remove use of Mutex in favour of std::{,recursive_}mutex
This is a pretty straightforward first pass over removing a number of uses of
Mutex in favor of std::mutex or std::recursive_mutex. The problem is that there
are interfaces which take Mutex::Locker & to lock internal locks. This patch
cleans up most of the easy cases. The only non-trivial change is in
CommandObjectTarget.cpp where a Mutex::Locker was split into two.

llvm-svn: 269877
2016-05-18 01:59:10 +00:00
Enrico Granata 7d1ff51f4a Add a check for version 15 of the shared cache format
<rdar://problem/26207478>

llvm-svn: 269378
2016-05-12 23:04:43 +00:00
Enrico Granata 5f57b6ee0f Revert r268591
"Allow LanguageRuntimes to return an error if they fail in the course of dynamic type discovery

This is not meant to report that a value doesn't have a dynamic type - it is only meant as a mechanism to propagate actual type discovery issues (e.g. malformed type metadata for languages that have such a notion)

This information is used by ValueObjectDynamic to set its own m_error, which is a fairly sharp and heavyweight tool to begin with

For the time being, this is an architectural improvement but a practical no-op as no existing runtimes are actually setting errors"

I need to think about what I want to do in this space more carefully - this attempt might be too heavy of a hammer for the nail I am trying to fix, and I don't want to leave it in while I ponder

llvm-svn: 268686
2016-05-05 21:10:28 +00:00
Enrico Granata 5ee5408625 Allow LanguageRuntimes to return an error if they fail in the course of dynamic type discovery
This is not meant to report that a value doesn't have a dynamic type - it is only meant as a mechanism to propagate actual type discovery issues (e.g. malformed type metadata for languages that have such a notion)

This information is used by ValueObjectDynamic to set its own m_error, which is a fairly sharp and heavyweight tool to begin with

For the time being, this is an architectural improvement but a practical no-op as no existing runtimes are actually setting errors

llvm-svn: 268591
2016-05-05 01:47:44 +00:00
Enrico Granata b86dc66e75 Make the functions that fetch data from the ObjC runtime choose whether or not to log depending on whether the types log is enabled
This can prove helpful in debugging issues with that retrieval even if LLDB wasn't compiled with the magic macros defined

llvm-svn: 268587
2016-05-05 01:15:57 +00:00
Enrico Granata 1dccd9da01 Add more debug logging to g_get_shared_cache_class_info_body
llvm-svn: 268303
2016-05-02 20:58:15 +00:00
Oleksiy Vyalov 987c8788d4 Rename out->std_out in AppleObjCRuntimeV2.cpp.
llvm-svn: 266401
2016-04-15 00:56:11 +00:00
Oleksiy Vyalov 2f5f100e72 Fix Android build after r266267
llvm-svn: 266274
2016-04-14 02:02:12 +00:00
Enrico Granata efcac211e5 Don't use auto - (try to) appease the Android g++ bot
llvm-svn: 266271
2016-04-14 01:23:01 +00:00
Enrico Granata 39c9fb7360 Augment the 'language objc class-table dump' command to take a "-v" option, which makes it print ivar and method information, as well as an optional regex argument which filters out all class names that don't match the regex
llvm-svn: 266267
2016-04-14 00:43:20 +00:00
Enrico Granata ea0ef6b19d Add support for resolving dynamic types of extended ObjC tagged pointers
rdar://problem/24401051

llvm-svn: 266001
2016-04-11 21:50:35 +00:00
Zachary Turner d133f6acf1 Move some functions from DWARFASTParserClang to ClangASTImporter.
This allows these functions to be re-used by a forthcoming
PDBASTParser.  The functions in question are CanCompleteType,
CompleteType, and CanImport.  Conceptually, these functions belong
on ClangASTImporter anyway, and previously they were just ping
ponging around through a few levels of indirection to end up there
as well, so this patch actually makes the code somewhat simpler.

A few methods were moved to a new file called ClangUtil, so that
they can be shared between ClangASTImporter and ClangASTContext
without creating a circular dependency between those two cpp
files.

Differential Revision: http://reviews.llvm.org/D18381

llvm-svn: 264685
2016-03-28 22:53:41 +00:00
Jim Ingham 6896b35585 Compilation can end up calling functions (e.g. to resolve indirect functions) so I added
a way for compilation to take a "thread to use for compilation".  If it isn't set then the
compilation will use the currently selected thread.  This should help keep function execution
to the one thread intended.

llvm-svn: 263972
2016-03-21 19:21:13 +00:00
Sean Callanan 579e70c9b0 Add a DiagnosticManager replace error streams in the expression parser.
We want to do a better job presenting errors that occur when evaluating
expressions. Key to this effort is getting away from a model where all
errors are spat out onto a stream where the client has to take or leave
all of them.

To this end, this patch adds a new class, DiagnosticManager, which
contains errors produced by the compiler or by LLDB as an expression
is created. The DiagnosticManager can dump itself to a log as well as
to a string. Clients will (in the future) be able to filter out the
errors they're interested in by ID or present subsets of these errors
to the user.

This patch is not intended to change the *users* of errors - only to
thread DiagnosticManagers to all the places where streams are used. I
also attempt to standardize our use of errors a bit, removing trailing
newlines and making clients omit 'error:', 'warning:' etc. and instead
pass the Severity flag.

The patch is testsuite-neutral, with modifications to one part of the
MI tests because it relied on "error: error:" being erroneously
printed. This patch fixes the MI variable handling and the testcase.

<rdar://problem/22864976>

llvm-svn: 263859
2016-03-19 00:03:59 +00:00
Jim Ingham 8d94ba0fb1 This change introduces a "ExpressionExecutionThread" to the ThreadList.
Turns out that most of the code that runs expressions (e.g. the ObjC runtime grubber) on
behalf of the expression parser was using the currently selected thread.  But sometimes,
e.g. when we are evaluating breakpoint conditions/commands, we don't select the thread
we're running on, we instead set the context for the interpreter, and explicitly pass
that to other callers.  That wasn't getting communicated to these utility expressions, so
they would run on some other thread instead, and that could cause a variety of subtle and
hard to reproduce problems.  

I also went through the commands and cleaned up the use of GetSelectedThread.  All those
uses should have been trying the thread in the m_exe_ctx belonging to the command object
first.  It would actually have been pretty hard to get misbehavior in these cases, but for
correctness sake it is good to make this usage consistent.

<rdar://problem/24978569>

llvm-svn: 263326
2016-03-12 02:45:34 +00:00
Jim Ingham 2411167fb5 Add an "offset" option to "break set -n" and "break set -f -l".
That way you can set offset breakpoints that will move as the function they are 
contained in moves (which address breakpoints can't do...)

I don't align the new address to instruction boundaries yet, so you have to get
this right yourself for now.

<rdar://problem/13365575>

llvm-svn: 263049
2016-03-09 18:59:13 +00:00
Enrico Granata 984af07ae5 Apple simulator platforms don't have a shared cache to load Objective-C class information from
This code was doing the right thing for the iOS simulator, but not other simulator platforms

Fix it by making the warning not happen for all platforms whose name ends in "-simulator"
Since this code lives in AppleObjCRuntimeV2.cpp, this already only applies to Apple platforms by definition, so I am not too worried about conflicts with other vendors

llvm-svn: 261165
2016-02-17 22:14:41 +00:00
Eugene Zelenko c33088f41e Remove autoconf support from source directories.
Differential revision: http://reviews.llvm.org/D16662

llvm-svn: 259098
2016-01-28 22:05:24 +00:00
Jim Ingham 22861aeab8 Writing a test case for r257234 I found another place that was
assuming a ValueObject always has a process.  So this is that fix
and the test case.

llvm-svn: 257242
2016-01-09 01:20:30 +00:00
Jim Ingham 7831c3590c Fix a thinko in the asserts in GetDynamicTypeAndAddress. It was requiring that the
process in the incoming value be non-null, but Value Objects created off the target
don't necessarily have a process.  In that case, having the targets the same is good
enough.

<rdar://problem/24097805>

llvm-svn: 257234
2016-01-08 23:44:51 +00:00
Sean Callanan aa4d7596f4 Newer versions of the ObjC runtime have an extra field in objc_opt_t.
llvm-svn: 253732
2015-11-20 22:59:57 +00:00
Enrico Granata 1dfcd650c8 Change the way we read data from the ObjC runtime
llvm-svn: 252272
2015-11-06 03:04:56 +00:00
Chaoren Lin 2a7a94a655 Completely avoid building Apple simulator on non-Darwin platforms.
Summary:
This is a resubmission of r252179, but correctly ignores the source
files for other platforms.

Reviewers: granata.enrico, tberghammer, zturner, jingham

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D14389

llvm-svn: 252205
2015-11-05 20:45:29 +00:00
Eugene Zelenko 4192015cfe Attempt to fix MSVC builds after rL250966.
Differential Revision: http://reviews.llvm.org/D13968

llvm-svn: 251031
2015-10-22 17:01:20 +00:00
Pavel Labath 31bcd2bddd [AppleObjCRuntime] Don't bother looking for the runtime on non-apple targets
Summary:
This short-circuits the GetObjCVersion function to avoid iterating through target modules on
non-apple targets. This function is called on every Process::IsDynamicValue call, so this
overhead is not negligible.

Reviewers: clayborg, jingham

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D13948

llvm-svn: 251004
2015-10-22 09:34:40 +00:00
Eugene Zelenko 05e0fc85b2 Fix Clang-tidy modernize-use-override warnings in some files in source/Plugins/LanguageRuntime; other minor fixes.
Differential Revision: http://reviews.llvm.org/D13966

llvm-svn: 250966
2015-10-22 00:45:41 +00:00
Sean Callanan 4dbb271fcc Moved more Clang-specific parts of the expression parser into the Clang plugin.
There are still a bunch of dependencies on the plug-in, but this helps to
identify them.
There are also a few more bits we need to move (and abstract, for example the
ClangPersistentVariables).

llvm-svn: 248612
2015-09-25 20:35:58 +00:00
Bruce Mitchener 3ad353f3f4 Rename clang_type -> compiler_type for variables.
Reviewers: clayborg

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D13102

llvm-svn: 248461
2015-09-24 03:54:50 +00:00
Enrico Granata d188803f45 The Visual Studio compiler does not like this C-ism when 'enum class'es are involved
llvm-svn: 248429
2015-09-23 20:49:15 +00:00
Enrico Granata 15a67f49aa Make the ObjCLanguageRuntimes comply with llvm-style RTTI
llvm-svn: 248427
2015-09-23 20:12:19 +00:00
Enrico Granata 7eed48779d On second thought, amend the previous patch to pass itself the ValueObject& for the static value instead of just its type
llvm-svn: 248316
2015-09-22 19:58:02 +00:00
Enrico Granata c74275bc4a Move the logic to post-process dynamic types for ValueObject purposes from the ValueObjects to the LanguageRuntime plugins
This is meant to cover cases such as the obvious

Base *base = new Derived();

where GetDynamicTypeAndAddress(base) would return the type "Derived", not "Derived *"

llvm-svn: 248315
2015-09-22 19:45:52 +00:00
Enrico Granata 0b6003f3e6 Make LanguageRuntime::GetDynamicTypeAndAddress return a ValueType
For C++ and ObjC, dynamic values are always (at least somewhat) pointer-like in nature, so a ValueType of scalar is actually good enough that it could originally be hardcoded as the right choice
Other languages, might have broader notions of things that are dynamic (e.g. a language where a value type can be dynamic). In those cases, it might actually be the case that a dynamic value is a pointer-to the data, or even a host address if dynamic expression results entirely in host space are being talked about

This patch enables the language runtime to make that decision, and makes ValueObjectDynamicValue comply with it

llvm-svn: 247957
2015-09-17 22:56:38 +00:00
Jim Ingham 151c032c86 This patch makes Clang-independent base classes for all the expression types that lldb currently vends.
Before we had:

ClangFunction
ClangUtilityFunction
ClangUserExpression

and code all over in lldb that explicitly made Clang-based expressions. This patch adds an Expression 
base class, and three pure virtual implementations for the Expression kinds:

FunctionCaller
UtilityFunction
UserExpression

You can request one of these expression types from the Target using the Get<ExpressionType>ForLanguage. 
The Target will then consult all the registered TypeSystem plugins, and if the type system that matches 
the language can make an expression of that kind, it will do so and return it.

Because all of the real expression types need to communicate with their ExpressionParser in a uniform way, 
I also added a ExpressionTypeSystemHelper class that expressions generically can vend, and a ClangExpressionHelper 
that encapsulates the operations that the ClangExpressionParser needs to perform on the ClangExpression types. 
Then each of the Clang* expression kinds constructs the appropriate helper to do what it needs.

The patch also fixes a wart in the UtilityFunction that to use it you had to create a parallel FunctionCaller 
to actually call the function made by the UtilityFunction. Now the UtilityFunction can be asked to vend a 
FunctionCaller that will run its function. This cleaned up a lot of boiler plate code using UtilityFunctions.

Note, in this patch all the expression types explicitly depend on the LLVM JIT and IR, and all the common 
JIT running code is in the FunctionCaller etc base classes. At some point we could also abstract that dependency 
but I don't see us adding another back end in the near term, so I'll leave that exercise till it is actually necessary.

llvm-svn: 247720
2015-09-15 21:13:50 +00:00
Bruce Mitchener db25a7a245 [cmake] Remove LLVM_NO_RTTI.
Summary:
This doesn't exist in other LLVM projects any longer and doesn't
do anything.

Reviewers: chaoren, labath

Subscribers: emaste, tberghammer, lldb-commits, danalbert

Differential Revision: http://reviews.llvm.org/D12586

llvm-svn: 246749
2015-09-03 08:46:55 +00:00
Bruce Mitchener e8433cc179 Simplify find_first_of & find_last_of on single char.
Summary:
When calling find_first_of and find_last_of on a single character,
we can instead just call find / rfind and make our intent more
clear.

Reviewers: clayborg

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D12518

llvm-svn: 246609
2015-09-01 23:57:17 +00:00