234 Commits

Author SHA1 Message Date
Alex Langford
a4223f9e5f [ExpressionParser] Fix ComputeClangResourceDirectory for windows
The function signature of ComputeClangResourceDirectory for windows
wasn't updated when the others changed, causing the windows build to
fail. This should fix that.

llvm-svn: 355471
2019-03-06 01:57:04 +00:00
Alex Langford
787fe33434 [ExpressionParser] Test GetClangResourceDir
Summary:
I'm doing this because I plan on implementing `ComputeClangResourceDirectory`
on windows so that `GetClangResourceDir` will work.  Additionally, I made
test_paths make sure that the directory member of the returned FileSpec is not
none. This will fail on windows since `ComputeClangResourceDirectory` isn't
implemented yet.

Differential Revision: https://reviews.llvm.org/D58748

llvm-svn: 355463
2019-03-06 00:45:16 +00:00
Jonas Devlieghere
9764b65c82 [Reproducers] Make clang use lldb's VFS.
In r353906 we hooked up clang and lldb's reproducer infrastructure to
capture files used by clang. This patch adds the necessary logic to have
clang reuse the files from lldb's reproducer during replay.

Differential revision: https://reviews.llvm.org/D58309

llvm-svn: 354283
2019-02-18 20:31:18 +00:00
Jonas Devlieghere
ff04b3d4d7 [ExpressionParser] Reuse the FileManager from the compiler instance.
I was looking at the ClangExpressionParser and noticed that we have a
FileManager owned by the expression parser and later ask the compiler
instance to create a new FileManager, owned by the clang CI. Looking at
the code I don't see a good reason for having two instances. This patch
removes the one owned by LLDB.

Differential revision: https://reviews.llvm.org/D58222

llvm-svn: 354041
2019-02-14 18:05:43 +00:00
Adrian Prantl
0c0ebb1430 Add missing include
llvm-svn: 353971
2019-02-13 19:29:22 +00:00
Adrian Prantl
0f30a3b68f Deserialize Clang module search path from DWARF
This patch properly extracts the full submodule path as well as its
search paths from DWARF import decls and passes it on to the
ClangModulesDeclVendor.

rdar://problem/47970144

Differential Revision: https://reviews.llvm.org/D58090

llvm-svn: 353961
2019-02-13 18:10:41 +00:00
Jonas Devlieghere
d5b440369d Replace 'ap' with 'up' suffix in variable names. (NFC)
The `ap` suffix is a remnant of lldb's former use of auto pointers,
before they got deprecated. Although all their uses were replaced by
unique pointers, some variables still carried the suffix.

In r353795 I removed another auto_ptr remnant, namely redundant calls to
::get for unique_pointers. Jim justly noted that this is a good
opportunity to clean up the variable names as well.

I went over all the changes to ensure my find-and-replace didn't have
any undesired side-effects. I hope I didn't miss any, but if you end up
at this commit doing a git blame on a weirdly named variable, please
know that the change was unintentional.

llvm-svn: 353912
2019-02-13 06:25:41 +00:00
Jonas Devlieghere
63e2e59b89 [Reproducers] Integrate FileProvider with clang
This patch hooks up clang and lldb's reproducers functionality. It
ensures that when capturing a reproducer, headers and modules imported
through the expression parser are collected.

Differential revision: https://reviews.llvm.org/D58076

llvm-svn: 353906
2019-02-13 01:30:41 +00:00
Jonas Devlieghere
70355ace3f Remove redundant ::get() for smart pointer. (NFC)
This commit removes redundant calls to smart pointer’s ::get() method.

https://clang.llvm.org/extra/clang-tidy/checks/readability-redundant-smartptr-get.html

llvm-svn: 353795
2019-02-12 03:47:39 +00:00
Jonas Devlieghere
796ac80b86 Use std::make_shared in LLDB (NFC)
Unlike std::make_unique, which is only available since C++14,
std::make_shared is available since C++11. Not only is std::make_shared
a lot more readable compared to ::reset(new), it also performs a single
heap allocation for the object and control block.

Differential revision: https://reviews.llvm.org/D57990

llvm-svn: 353764
2019-02-11 23:13:08 +00:00
Raphael Isemann
f75a9dc1a2 Fixed function name in log statement
llvm-svn: 353753
2019-02-11 21:45:33 +00:00
James Y Knight
ae2f951219 [opaque pointer types] Update calls to CreateCall to pass the function
type in lldb and polly.

llvm-svn: 353549
2019-02-08 19:30:46 +00:00
Krasimir Georgiev
7ffc4681ca [Expressions] Fix -Wreorder warning from r353149
Summary:
```
ClangExpressionDeclMap.cpp:72:60: error: field 'm_struct_vars' will be initialized after field 'm_ctx_obj' [-Werror,-Wreorder]
      m_result_delegate(result_delegate), m_parser_vars(), m_struct_vars(),
```

Reviewers: bkramer, aleksandr.urakov

Reviewed By: aleksandr.urakov

Subscribers: aleksandr.urakov

Differential Revision: https://reviews.llvm.org/D57742

llvm-svn: 353161
2019-02-05 11:35:45 +00:00
Aleksandr Urakov
40624a085c [Expressions] Add support of expressions evaluation in some object's context
Summary:
This patch adds support of expression evaluation in a context of some object.
Consider the following example:
```
struct S {
  int a = 11;
  int b = 12;
};

int main() {
  S s;
  int a = 1;
  int b = 2;
  // We have stopped here
  return 0;
}
```
This patch allows to do something like that:
```
lldb.frame.FindVariable("s").EvaluateExpression("a + b")
```
and the result will be `33` (not `3`) because fields `a` and `b` of `s` will be
used (not locals `a` and `b`).

This is achieved by replacing of `this` type and object for the expression. This
has some limitations: an expression can be evaluated only for values located in
the debuggee process memory (they must have an address of `eAddressTypeLoad`
type).

Reviewers: teemperor, clayborg, jingham, zturner, labath, davide, spyffe, serge-sans-paille

Reviewed By: jingham

Subscribers: abidh, lldb-commits, leonid.mashinskiy

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D55318

llvm-svn: 353149
2019-02-05 09:14:36 +00:00
Raphael Isemann
0d649c65b8 Simplify LangOpts initalization in ClangExpressionParser [NFC]
Reviewers: davide

Reviewed By: davide

Subscribers: shafik, davide, lldb-commits

Differential Revision: https://reviews.llvm.org/D57222

llvm-svn: 352249
2019-01-25 22:41:31 +00:00
Raphael Isemann
2a1f300bb5 Fix typo in ClangModulesDeclVendor [NFC]
llvm-svn: 352180
2019-01-25 09:28:48 +00:00
Chandler Carruth
2946cd7010 Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351636
2019-01-19 08:50:56 +00:00
Adrian Prantl
222474b9ff Simplify code by using Optional::getValueOr()
llvm-svn: 351264
2019-01-15 22:30:01 +00:00
Adrian Prantl
d6a9bbf68e Replace auto -> llvm::Optional<uint64_t>
This addresses post-commit feedback for https://reviews.llvm.org/D56688

llvm-svn: 351237
2019-01-15 20:33:58 +00:00
Adrian Prantl
d963a7c398 Make CompilerType::getBitSize() / getByteSize() return an optional result. NFC
The code in LLDB assumes that CompilerType and friends use the size 0
as a sentinel value to signal an error. This works for C++, where no
zero-sized type exists, but in many other programming languages
(including I believe C) types of size zero are possible and even
common. This is a particular pain point in swift-lldb, where extra
code exists to double-check that a type is *really* of size zero and
not an error at various locations.

To remedy this situation, this patch starts by converting
CompilerType::getBitSize() and getByteSize() to return an optional
result. To avoid wasting space, I hand-rolled my own optional data
type assuming that no type is larger than what fits into 63
bits. Follow-up patches would make similar changes to the ValueObject
hierarchy.

rdar://problem/47178964

Differential Revision: https://reviews.llvm.org/D56688

llvm-svn: 351214
2019-01-15 18:07:52 +00:00
Zachary Turner
576495e67b [SymbolFile] Remove SymbolContext parameter from FindTypes.
This parameter was only ever used with the Module set, and
since a SymbolFile is tied to a module, the parameter turns
out to be entirely unnecessary.  Furthermore, it doesn't make
a lot of sense to ask a caller to ask SymbolFile which is tied
to Module X to find types for Module Y, but that possibility
was open with the previous interface.  By removing this
parameter from the API, it makes it harder to use incorrectly
as well as easier for an implementor to understand what it
needs to do.

llvm-svn: 351133
2019-01-14 22:41:21 +00:00
Zachary Turner
c0a246afbe [SymbolFile] Remove the SymbolContext parameter from FindNamespace.
Every callsite was passing an empty SymbolContext, so this parameter
had no effect.  Inside the DWARF implementation of this function,
however, there was one codepath that checked members of the
SymbolContext.  Since no call-sites actually ever used this
functionality, it was essentially dead code, so I've deleted this
code path as well.

llvm-svn: 351132
2019-01-14 22:41:00 +00:00
Jonas Devlieghere
9bbba276e9 Change std::sort to llvm::sort to detect non-determinism.
LLVM added wrappers to std::sort (r327219) that randomly shuffle the
container before sorting. The goal is to uncover non-determinism due to
undefined sorting order of objects having the same key.

This can be enabled with -DLLVM_ENABLE_EXPENSIVE_CHECKS=ON.

llvm-svn: 350679
2019-01-08 23:25:06 +00:00
Jonas Devlieghere
aa2dc6bfec [ExpressionParser] Reserve size before copying over args
We already know the final size here so we might as well reserve it so we
don't have to re-allocate during the loop.

llvm-svn: 349967
2018-12-21 22:16:10 +00:00
Jonas Devlieghere
a6682a413d Simplify Boolean expressions
This patch simplifies boolean expressions acorss LLDB. It was generated
using clang-tidy with the following command:

run-clang-tidy.py -checks='-*,readability-simplify-boolean-expr' -format -fix $PWD

Differential revision: https://reviews.llvm.org/D55584

llvm-svn: 349215
2018-12-15 00:15:33 +00:00
Stella Stamenova
b3f44ad9c2 Do not use PATH_MAX with SmallString
Summary: Instead use a more reasonable value to start and rely on the fact that SmallString will resize if necessary.

Reviewers: labath, asmith

Reviewed By: labath

Subscribers: lldb-commits

Differential Revision: https://reviews.llvm.org/D55457

llvm-svn: 348775
2018-12-10 17:23:28 +00:00
Aleksandr Urakov
f335188925 [Expr] Check the language before ignoring Objective C keywords
Summary:
This patch adds the check of the language before ignoring names like `id` or
`Class`, which are reserved in Objective C, but are allowed in C++. It is needed
to make it possible to evaluate expressions in a C++ program containing names
like `id` or `Class`.

Reviewers: jingham, zturner, labath, clayborg

Reviewed By: jingham, clayborg

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D54843

llvm-svn: 348240
2018-12-04 09:51:29 +00:00
Jonas Devlieghere
ceff6644bb Remove header grouping comments.
This patch removes the comments grouping header includes. They were
added after running IWYU over the LLDB codebase. However they add little
value, are often outdates and burdensome to maintain.

llvm-svn: 346626
2018-11-11 23:17:06 +00:00
Jonas Devlieghere
672d2c1255 Remove comments after header includes.
This patch removes the comments following the header includes. They were
added after running IWYU over the LLDB codebase. However they add little
value, are often outdates and burdensome to maintain.

Differential revision: https://reviews.llvm.org/D54385

llvm-svn: 346625
2018-11-11 23:16:43 +00:00
Jonas Devlieghere
3a58d89819 [FileSystem] Add convenience method to check for directories.
Replace calls to LLVM's is_directory with calls to LLDB's FileSytem
class. For this I introduced a new convenience method that, like the
other methods, takes either a path or filespec. This still uses the LLVM
functions under the hood.

Differential revision: https://reviews.llvm.org/D54135

llvm-svn: 346375
2018-11-08 00:14:50 +00:00
Jonas Devlieghere
77198bc79b Remove Go debugger plugin
In January Davide sent an e-mail to the mailing list to suggest removing
unmaintained language plugins such as Go and Java. The plan was to have
some cool down period to allow users to speak up, however after that the
plugins were never actually removed.

This patch removes the Go debugger plugin.

The plugin can be added again in the future if it is mature enough both
in terms of testing and maintenance commitment.

Discussion on the mailing list:
http://lists.llvm.org/pipermail/lldb-dev/2018-January/013171.html

Differential revision: https://reviews.llvm.org/D54057

llvm-svn: 346157
2018-11-05 19:33:59 +00:00
Jonas Devlieghere
8f3be7a32b [FileSystem] Move path resolution logic out of FileSpec
This patch removes the logic for resolving paths out of FileSpec and
updates call sites to rely on the FileSystem class instead.

Differential revision: https://reviews.llvm.org/D53915

llvm-svn: 345890
2018-11-01 21:05:36 +00:00
Erik Pilkington
fa98390b3c NFC: Remove the ObjC1/ObjC2 distinction from clang (and related projects)
We haven't supported compiling ObjC1 for a long time (and never will again), so
there isn't any reason to keep these separate. This patch replaces
LangOpts::ObjC1 and LangOpts::ObjC2 with LangOpts::ObjC.

Differential revision: https://reviews.llvm.org/D53547

llvm-svn: 345637
2018-10-30 20:31:30 +00:00
Raphael Isemann
dababf70e2 Refactor ClangUserExpression::GetLanguageForExpr
Summary:
The `ClangUserExpression::GetLanguageForExpr` method is currently a big
source of sadness, as it's name implies that it's an accessor method, but it actually
is also initializing some variables that we need for parsing. This caused that we
currently call this getter just for it's side effects while ignoring it's return value,
which is confusing for the reader.

This patch renames it to `UpdateLanguageForExpr` and merges all calls to the
method into a single call in `ClangUserExpression::PrepareForParsing` (as calling
this method is anyway mandatory for parsing to succeed)

While looking at the code, I also found that we actually have two language
variables in this class hierarchy. The normal `Language` from the UserExpression
class and the `LanguageForExpr` that we implemented in this subclass. Both
don't seem to actually contain the same value, so we probably should look at this
next.

Reviewers: xbolva00

Reviewed By: xbolva00

Subscribers: lldb-commits

Differential Revision: https://reviews.llvm.org/D52561

llvm-svn: 343191
2018-09-27 10:12:54 +00:00
Raphael Isemann
bfc5ef6c5b Change type of m_user_expression_start_pos to size_t
AbsPosToLineColumnPos is the only reader of m_user_expression_start_pos
and actually treats it like a size_t. Also the value we store in
m_user_expression_start_pos is originally a size_t, so it makes sense
to change the type of this variable to size_t.

llvm-svn: 342804
2018-09-22 13:33:08 +00:00
Raphael Isemann
9dd34c8385 Add descriptions to completed expressions
Summary:
Completing inside the expression command now uses the new description API
to also provide additional information to the user. For now this information
are the types of variables/fields and the signatures of completed function calls.

Reviewers: #lldb, JDevlieghere

Reviewed By: JDevlieghere

Subscribers: JDevlieghere, lldb-commits

Differential Revision: https://reviews.llvm.org/D52103

llvm-svn: 342385
2018-09-17 12:06:07 +00:00
Raphael Isemann
262dd8c9df Print the correct error when our DynamicCheckerFunctions fail to install
Summary:
The check is inverted here: If we have error messages, we should print those instead
of our default error message. But currently we print the default message when we
actually have a sensible error to print.

Fixes https://bugs.llvm.org/show_bug.cgi?id=38383
Thanks Nat for the patch!

Reviewers: #lldb, JDevlieghere

Reviewed By: JDevlieghere

Subscribers: JDevlieghere, lldb-commits

Differential Revision: https://reviews.llvm.org/D51602

llvm-svn: 341940
2018-09-11 13:59:47 +00:00
Raphael Isemann
ee65d57321 Reland [ClangUserExpression][NFC] Removed unused code
The GetLanguageForExpr has side effects, so we can't remove this
call without breaking the completion mechanism. However, we can
keep the change that gets rid of this unnecessary variable.

llvm-svn: 341535
2018-09-06 10:24:11 +00:00
Raphael Isemann
20c88ebf57 Revert "[ClangUserExpression][NFC] Removed unused code"
GetLanguageForExpr has side effects, so this actually breaks
the completion. Should fix TestExprCompletion.

llvm-svn: 341532
2018-09-06 09:42:44 +00:00
David Bolvansky
7a213d2f9b [ClangUserExpression][NFC] Removed unused code
llvm-svn: 341334
2018-09-03 18:21:21 +00:00
Raphael Isemann
c11a780ed6 Use a CompletionRequest in the expression command completion [NFC]
The patch was originally written before we had a CompletionRequest,
so it still used a StringList to pass back the completions to
the request.

llvm-svn: 341124
2018-08-30 21:26:32 +00:00
Raphael Isemann
d424c2a8a1 Move NoBuiltin=true closer to the other LangOpts code [NFC]
llvm-svn: 341121
2018-08-30 20:56:58 +00:00
Raphael Isemann
20892fb4b0 Adjusting some comments in ClangExpressionParser.cpp
llvm-svn: 341112
2018-08-30 20:19:57 +00:00
Raphael Isemann
b83f914b6e Added missing include to <cctype> for 'std::isalnum'
Should fix the failing Windows bots.

llvm-svn: 341109
2018-08-30 20:14:22 +00:00
Raphael Isemann
39ec6e7049 Fixed code style for the CodeCompletion members [NFC]
This code is in LLDB, so it should also follow the LLDB code style
and use the m_ prefix for members.

llvm-svn: 341105
2018-08-30 19:47:53 +00:00
Raphael Isemann
7482973411 Added initial code completion support for the expr command
Summary:
This patch adds initial code completion support for the `expr` command.

We now have a completion handler in the expression CommandObject that
essentially just attempts to parse the given user expression with Clang with
an attached code completion consumer. We filter and prepare the
code completions provided by Clang and send them back to the completion
API.

The current completion is limited to variables that are in the current scope.
This includes local variables and all types used by local variables. We however
don't do any completion of symbols that are not used in the local scope (or
in some other way already in the ASTContext).

This is partly because there is not yet any code that manually searches for additiona
information in the debug information. Another cause is that for some reason the existing
code for loading these additional symbols when requested by Clang doesn't seem to work.
This will be fixed in a future patch.

Reviewers: jingham, teemperor

Reviewed By: teemperor

Subscribers: labath, aprantl, JDevlieghere, friss, lldb-commits

Differential Revision: https://reviews.llvm.org/D48465

llvm-svn: 341086
2018-08-30 17:29:37 +00:00
Adrian Prantl
2305c049a3 Remove redundant initialization
llvm-svn: 341080
2018-08-30 15:39:08 +00:00
Raphael Isemann
596709d8a8 Let the CompilerInstance create our clang ASTContext
Summary:
Now that we moved the BuiltinContext and SelectorTable to the
CompilerInstance, we can also get rid of manually creating our
own ASTContext, but just use the one from the CompilerInstance
(which will be created with the same settings).

Reviewers: vsk, aprantl, davide

Reviewed By: davide

Subscribers: lldb-commits

Differential Revision: https://reviews.llvm.org/D51253

llvm-svn: 340748
2018-08-27 15:18:33 +00:00
Raphael Isemann
d2b0862f7f Reuse the SelectorTable from Clang's Preprocessor
Summary:
At the moment we create our own SelectorTable even though the Preprocessor always
creates one for us that we can (and should) reuse.

Reviewers: vsk

Reviewed By: vsk

Subscribers: lldb-commits

Differential Revision: https://reviews.llvm.org/D51185

llvm-svn: 340585
2018-08-23 22:40:54 +00:00
Raphael Isemann
778b308eb9 Fix broken builtin functions in the expression command
Summary:
Calling any non-libc builtin function in the expression command currently just causes Clang
to state that the function is not known. The reason for this is that we actually never
initialize the list of builtin functions in the Builtin::Context.

This patch just calls the initializer for the builtins in the preprocessor. Also adds some tests
for the new builtins.

It also gets rid of the extra list of builtins in the ClangExpressionParser, as we can just reuse
the existing list in the Preprocessor for the ASTContext. Having just one list of builtins around
is also closer to the standard Clang behavior.

Reviewers: #lldb, vsk

Reviewed By: vsk

Subscribers: sgraenitz, clayborg, vsk, lldb-commits

Differential Revision: https://reviews.llvm.org/D50481

llvm-svn: 340571
2018-08-23 20:40:45 +00:00