Commit Graph

414 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
Dimitar Vlahovski 80dfec8ce3 Fixing a build breakage caused from a change in LLVM rL281019
Summary:
LLVM guys did some clean-up of the Attribute getters/setters
and because of that the build was failing.

Reviewers: ldrumm

Subscribers: lldb-commits

Differential Revision: https://reviews.llvm.org/D24382

llvm-svn: 281030
2016-09-09 10:14:11 +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
Luke Drummond 5d05763761 [RenderScript] Always create a new allocation ID in CaptureAllocationInit hook
Due to internal reuse of buffers in the RenderScript runtime by the system allocator,
comparing pointers is not a safe way to check whether an allocation is tracked by lldb.
This change updates the lldb RenderScript internal hook callback to properly
identify and remove old allocations that had have an address that is currently
being tracked.

This change also removes the need for `lldb_private::renderscript::LookupAllocation`
to take a `create` flag, as this is now always the case.

Original Author: <dean@codeplay.com>

Subscribers: lldb-commits
llvm-svn: 277613
2016-08-03 17:31:58 +00:00
Luke Drummond 9d83de42f0 Fix an unused variable warning in release builds.
``num_params`` was unused in RenderScript ABI fixup pass ``cloneToStructRetFnTy``
and was only used in an `assert()` that the number of function parameters for the cloned
function was correct.

Now we actually use this variable, rather than recomputing it, and avoid the unused variable
warning when building without asserts enabled.

Subscribers: lldb-commits
llvm-svn: 277608
2016-08-03 16:29:45 +00:00
Luke Drummond 19459580af Add IR fixups for RenderScript ABI mismatch between ARMV7 frontend and x86 backend
Expression evaluation for function calls to certain public RenderScript
API functions in libRSCPURef can segfault.

`slang`,
the compiler frontend for RenderScript embeds an ARM specific triple in
IR that is shipped in the app, after generating IR that has some
assumptions that an ARM device is the target.
As the IR is then compiled on a device of unknown (at time the IR was
generated at least) architecture, when calling RenderScript API function
as part of debugger expressions, we have to perform a fixup pass that
removes those assumptions right before the module is sent to be
generated by the llvm backend.

This issue is caused by multiple problems with the ARMv7-specific
assumptions encoded in the LLVM IR. x86 large value returns use a hidden
first argument (mapping to llvm::Attribute::StructRet), which can't be
picked up by the JIT due to the mismatch between IR generated by the
slang frontend and llvm backend. This means that code generated by bcc
did not necessarily match the default SysV Linux/Android ABI used by the
LLDB JIT

- Original Authors: Luke Drummond (@ldrumm), Function declarations fixed by Aidan Dodds (@ADodds)

Subscribers: lldb-commits

Differential Revision: https://reviews.llvm.org/D18059

llvm-svn: 276976
2016-07-28 14:21:07 +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
Ed Maste 75500e72bb Typo corrections identified by codespell
Submitted by giffunip@yahoo.com; I fixed a couple of nearby errors and
incorrect changes in the patch.

llvm.org/pr27634

llvm-svn: 275983
2016-07-19 15:28:02 +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
Pavel Labath 4f23d1e27c Add a missing include to ItaniumABILanguageRuntime.h
some (I'm not sure why only some, actually) implementations of std::map require the value type to
be a fully specified type when declaring then. This make sure TypeAndOrName is.

llvm-svn: 270570
2016-05-24 15:32:40 +00:00
Greg Clayton c226778768 We have many radars showing that stepping through C++ code can result in slow steps.
One of the things slowing us down is that ItaniumABILanguageRuntime class doesn't cache vtable to types in a map. This causes us, on every step, for every variable, to read the first pointer in a C++ type that could be dynamic and lookup the symbol, possibly in every symbol file (some symbols files on Darwin can end up having thousands of .o files when using DWARF in .o files, so thousands of .o files are searched each time). 

This fix caches lldb_private::Address (the resolved vtable symbol address in section + offset format) to TypeAndOrName instances inside the one ItaniumABILanguageRuntime in a process. This allows caching of dynamic types and stops us from always doing deep searches in each file.

<rdar://problem/18890778>

llvm-svn: 270488
2016-05-23 20:37:24 +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
Enrico Granata 221cfdd7b1 Add a 'language cplusplus demangle' command. This can be useful to provide a low-friction reproduction for issues with the LLDB demangling of C++ symbols
llvm-svn: 264474
2016-03-25 23:14:24 +00:00
Greg Clayton 1e05c3bc28 Get rid of two global constructors by making things static variables in the only function that uses these variables.
llvm-svn: 264347
2016-03-24 21:48:10 +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
Aidan Dodds 67dc3e1575 [Renderscript] Add stack argument reading code for Mipsel 3
Fix a problem raised with the previous patches being applied in the wrong order.

Committed on behalf of: Dean De Leo <dean@codeplay.com>

llvm-svn: 263134
2016-03-10 17:50:01 +00:00
Aidan Dodds 6dd4b57987 [Renderscript] Add stack argument reading code for Mipsel 2
This commit implements the reading of stack spilled function arguments for little endian MIPS targets.

Committed on behalf of: Dean De Leo <dean@codeplay.com>

llvm-svn: 263131
2016-03-10 17:37:02 +00:00
Aidan Dodds 17e07c0ab4 [Renderscript] Add stack argument reading code for Mipsel
This commit implements the reading of stack spilled function arguments for little endian MIPS targets.

Committed on behalf of: Dean De Leo <dean@codeplay.com>

llvm-svn: 263130
2016-03-10 17:27:41 +00:00
Aidan Dodds 8433fdbedf [Renderscript] Explicitly set the language to evaluate allocations
Currently it is not specified, and since allocations are usually
requested once we hit a renderscript breakpoint, the language will be
inferred being as renderscript by the ExpressionParser.
Actually allocations attempt to invoke functions part of the RS runtime,
written in C/C++, so evaluating the calls in RenderScript could be
misleading.

In particular, in MIPS, the ABI between C/C++ (mips o32) and
renderscript (arm) might introduce subtle bugs when evaluating such
expressions.

This change explicitly sets the language used to evaluate the allocations
as C++.

Committed on behalf of: Dean De Leo <dean@codeplay.com>

llvm-svn: 263129
2016-03-10 17:23:33 +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
Tamas Berghammer 87a9769e9b Add a set of new plugins to handle Java debugging
The purpose of these plugins is to make LLDB capable of debugging java
code JIT-ed by the android runtime.

Differential revision: http://reviews.llvm.org/D17616

llvm-svn: 262015
2016-02-26 14:21:23 +00:00
Greg Clayton cec91ef921 Fix all of the unannotated switch cases to annotate the fall through or do the right thing and break.
llvm-svn: 261950
2016-02-26 01:20:20 +00:00
Aidan Dodds 577570b4a5 [Renderscript] Change expression strings to use portable format specifiers.
Mips64 tests were failing on windows because the sscanf implementation differs between clang/gcc/msvc such that on windows %lx specifies a 32bits parameter and %llx is for 64bits. For us this meant that 64bit pointers were being truncated to 32bits on their way into a JIT'd expression.

llvm-svn: 261741
2016-02-24 14:17:33 +00:00
Saleem Abdulrasool 7ccf1373ac RenderScript: silence some -Wmissing-brace warnings
Silence some -Wmissing-brace warnings on Linux with clang 3.7.

llvm-svn: 261612
2016-02-23 04:56:31 +00:00
Aidan Dodds b0be30f71a [Renderscript] Refactor .rs.info parser.
This patch refactors the .rs.info table parser so that its more in line with the current language runtime code.

llvm-svn: 261202
2016-02-18 10:59:46 +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
Saleem Abdulrasool 1ee07253c7 Silence some clang warnings
Silences -Wmissing-brace and -Wformat-pedantic warnings from clang on Linux.  NFC.

llvm-svn: 260914
2016-02-15 21:50:28 +00:00