Commit Graph

320 Commits

Author SHA1 Message Date
David Blaikie e9c678cfca Fixes for Clang API changes to use std::shared_ptr
llvm-svn: 291200
2017-01-06 00:38:12 +00:00
Pavel Labath f31c9d27a4 Silence some -Wstring-conversion warnings
lldbassert(!"foo") -> lldbassert(0 && "foo")

In one case, this actually detected a logic error in the assertion (missing !).

llvm-svn: 291102
2017-01-05 13:18:42 +00:00
Luke Drummond 63dea59104 Fix a couple of incorrect format string warnings
This patch fixes use of incorrect `%zi` to format a plain `int`, and using
`%llu` to format a `uint64_t`. The fix is to use the new typesafe
`llvm::Formatv` based API.

Differential Revision: https://reviews.llvm.org/D28028
Subscribers: lldb-commits

llvm-svn: 290359
2016-12-22 19:15:07 +00:00
Luke Drummond f5bb1d6c4e Expression evaluation for overloaded C functions (redux)
This is a redux of [Ewan's patch](https://reviews.llvm.org/D17957) , refactored
to properly substitute primitive  types using a hook in the itanium demangler,
and updated after the previous patch went stale

The new `SubsPrimitiveParmItanium` function takes a symbol name and replacement
primitive type parameter as before but parses it using the FastDemangler, which
has been modified to be able to notify clients of parse events (primitive types
at this point).

Additionally, we now use a `set` of `ConstStrings` instead of a `vector` so
that we don't try and resolve the same invalid candidate multiple times.

Differential Revision: https://reviews.llvm.org/D27223
Subscribers: lldb-commits

llvm-svn: 290117
2016-12-19 17:22:44 +00:00
Sean Callanan 0134152cb4 Handle empty strings when looking for a CFString's encoding.
Should fix the bots.

llvm-svn: 288403
2016-12-01 19:14:55 +00:00
Sean Callanan cd1eb72bab Handle UTF-16 and UTF-32 constant CFStrings
We have a longstanding issue where the expression parser does not handle wide CFStrings (e.g., @"凸凹") correctly, producing the useless error message

Internal error [IRForTarget]: An Objective-C constant string's string initializer is not an array
error: warning: expression result unused
error: The expression could not be prepared to run in the target

This is just a side effect of the fact that we don't handle wide string constants when converting these to CFStringCreateWithBytes. That function takes the string's encoding as an argument, so I made it work and added a testcase.

https://reviews.llvm.org/D27291
<rdar://problem/13190557>

llvm-svn: 288386
2016-12-01 17:46:51 +00:00
Alexander Shaposhnikov 696bd63550 [lldb] Fix typos in file headers
This diff fixes typos in file headers (incorrect file names).

Test plan:

Under llvm/tools/lldb/source:
find ./* -type f | grep -e '\(cpp\|h\)$' | while read F; do B=$(basename $F); echo $F head -n 1 $F | grep -v $B | wc -l ; done

Differential revision: https://reviews.llvm.org/D27115

llvm-svn: 287966
2016-11-26 05:23:44 +00:00
Chris Bieneman b653c4957d [CMake] NFC. Updating CMake dependency specifications
This patch updates a bunch of places where add_dependencies was being explicitly called to add dependencies on intrinsics_gen to instead use the DEPENDS named parameter. This cleanup is needed for a patch I'm working on to add a dependency debugging mode to the build system.

llvm-svn: 287408
2016-11-18 23:31:53 +00:00
Zachary Turner c156427ded Don't allow direct access to StreamString's internal buffer.
This is a large API change that removes the two functions from
StreamString that return a std::string& and a const std::string&,
and instead provide one function which returns a StringRef.

Direct access to the underlying buffer violates the concept of
a "stream" which is intended to provide forward only access,
and makes porting to llvm::raw_ostream more difficult in the
future.

Differential Revision: https://reviews.llvm.org/D26698

llvm-svn: 287152
2016-11-16 21:15:24 +00:00
Zachary Turner aa5611f56d Change ValueObject creation functions to take StringRefs.
llvm-svn: 286744
2016-11-13 03:29:46 +00:00
Zachary Turner e2411fabda Make DiagnosticsManager functions take StringRefs.
llvm-svn: 286730
2016-11-12 19:12:56 +00:00
Zachary Turner c5d7df9035 Convert some Expression parser functions to StringRef.
llvm-svn: 286208
2016-11-08 04:52:16 +00:00
Jim Ingham 225621596b Don't access the process in expressions w/o checking that
the process exists.

I also added some tests that crash before this fix, and work correctly after.

<rdar://problem/29083321>

llvm-svn: 285974
2016-11-03 23:42:09 +00:00
Malcolm Parsons 771ef6d4f1 Fix Clang-tidy readability-redundant-string-cstr warnings
Reviewers: zturner, labath

Subscribers: tberghammer, danalbert, lldb-commits
    
Differential Revision: https://reviews.llvm.org/D26233

llvm-svn: 285855
2016-11-02 20:34:10 +00:00
Zachary Turner e9da8a8ec0 Fix some warnings compiling with clang-cl on Windows.
llvm-svn: 285834
2016-11-02 16:59:42 +00:00
Luke Drummond e22098fb35 Delete unused global in ClangExpressionVariable.cpp
Differential Revision: https://reviews.llvm.org/D24793

llvm-svn: 283313
2016-10-05 12:40:49 +00:00
Chris Bieneman dfa23206a8 [CMake] Fixing a few missing dependencies on intrinsics_gen
These are missing dependencies that have been exposed in builds as a result of my change to make lldb libraries depend on CLANG_TABLEGEN_TARGETS instead of libclang.

llvm-svn: 283081
2016-10-03 00:03:43 +00:00
Sean Callanan ac90058b80 Fixed TestObjCStructArgument/i386; expressions can now call ObjC class methods.
<rdar://problem/28502241>

llvm-svn: 282657
2016-09-29 00:45:33 +00:00
Luke Drummond 451dd080ed Remove an invalid doxygen `@return` docstring on a void function
`ClangASTSource::FindExternalVisibleDecls` has void return type, so the
previous docstring was misleading.

llvm-svn: 282066
2016-09-21 11:12:50 +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
Sean Callanan 3a878af29c Fixed the location of a conditional to make the following code clearer.
llvm-svn: 279896
2016-08-27 00:35:37 +00:00
Sean Callanan 8a33f6124c The error stream in IRForTarget is never null, so use it instead of the log.
llvm-svn: 279894
2016-08-27 00:20:38 +00:00
Sean Callanan 950e4ce8fc Fixed a bad lldbassert() condition.
llvm-svn: 279884
2016-08-26 23:48:03 +00:00
Sean Callanan fc670cf6d0 Don't crash when trying to capture persistent variables in a block.
Reports an error instead.  We can fix this later to make persistent variables
work, but right now we hit an LLVM assertion if we get this wrong.

<rdar://problem/27770298>

llvm-svn: 279850
2016-08-26 18:12:39 +00:00
Pavel Labath 1ac2b20d25 Fix expression evaluation with operator new
Summary:
referencing a user-defined operator new was triggering an assert in clang because we were
registering the function name as string "operator new", instead of using the special operator
enum, which clang has for this purpose. Method operators already had code to handle this, and now
I extend this to cover free standing operator functions as well. Test included.

Reviewers: spyffe

Subscribers: sivachandra, paulherman, lldb-commits

Differential Revision: http://reviews.llvm.org/D17856

llvm-svn: 278670
2016-08-15 14:32:32 +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
Chaoren Lin 926db72a4d Add missing headers after header cleanup in r275882.
llvm-svn: 275914
2016-07-18 21:11:43 +00:00
Jim Ingham 3a45e03442 Check whether Sema::CreateBuiltinUnaryOp returns an empty result.
If it does, calling AddInitializerToDecl will crash, so we should
abort the result synthesis in this case.

<rdar://problem/27205383>

llvm-svn: 274787
2016-07-07 19:06:37 +00:00
Jim Ingham bed6779c7a Add an "experimental" setting to disable injecting local variables into expressions.
This feature was added to solve a lookup problem in expressions when local variables
shadow ivars.  That solution requires fully realizing all local variables to evaluate
any expression, and can cause significant performance problems when evaluating 
expressions in frames that have many complex locals.

Until we get a better solution, this setting mitigates the problem when you don't
have local variables that shadow ivars.

<rdar://problem/27226122>

llvm-svn: 274783
2016-07-07 18:25:48 +00:00
Sean Callanan 8ba1654d48 Fixed a bug where we report a single type multiple times in namespaces.
Also added a testcase.

<rdar://problem/22786569>

llvm-svn: 274580
2016-07-05 22:06:01 +00:00
Sean Callanan 3696f86188 Removed the redundant "%d errors parsing expression" error. Nobody keeps score.
<rdar://problem/24306284>

llvm-svn: 274254
2016-06-30 18:00:32 +00:00
Sean Callanan bda7ef84c6 Don't omit `this' from expression args if it couldn't be read, but warn loudly.
<rdar://problem/26935520>

llvm-svn: 273445
2016-06-22 17:32:17 +00:00
Luke Drummond 9d4842251c Allow runtimes to execute custom LLVM ModulePasses over the expression IR
During expression evaluation, the ClangExpressionParser preforms a
number of hard-coded fixups on the expression's IR before the module
is assembled and dispatched to be run in a ThreadPlan.

This patch allows the runtimes to register LLVM passes to be run over the
generated IR, that they may perform language or architecture-specfic fixups
or analyses over the generated expression.

This makes expression evaluation for plugins more flexible and allows
language-specific fixes to reside in their own module, rather than
littering the expression evaluator itself with language-specific fixes.

llvm-svn: 272800
2016-06-15 16:19:46 +00:00
Sean Callanan 5ba3215fe3 Removed the m_decl_objects map from ClangASTContext.
m_decl_objects is problematic because it assumes that each VarDecl has a unique
variable associated with it.  This is not the case in inline contexts.

Also the information in this map can be reconstructed very easily without
maintaining the map.  The rest of the testsuite passes with this cange, and I've
added a testcase covering the inline contexts affected by this.

<rdar://problem/26278502>

llvm-svn: 270474
2016-05-23 18:30:59 +00:00
Sean Callanan 37e2664f30 Fixed a crash if a FunctionDecl couldn't be imported.
llvm-svn: 270097
2016-05-19 19:23:37 +00:00
Saleem Abdulrasool bb19a13c0b second pass over removal of Mutex and Condition
llvm-svn: 270024
2016-05-19 05:13:57 +00:00
Renato Golin 15cb0bd080 [LLDB] Adding lldb_private namespace to DiagnosticSeverity. NFC.
This is a fix due to the addition of the new DiagnosticSeverity in
LLVMContext.h. This may warrant a change in name to be LLDB specific
but I leave that to the LLDB experts to refactor.

llvm-svn: 269562
2016-05-14 13:14:39 +00:00
Ed Maste d589a75595 Remove unused variable
llvm-svn: 269421
2016-05-13 14:49:38 +00:00
Sagar Thakur adc1abe77e [LLDB][MIPS] Provide ABI string to compiler for appropriate code generation for MIPS
Patch by Nitesh Jain.

Summary: These patch will set clang::TargetOptions::ABI and accordingly code will be generated for MIPS target.

Reviewers: ovyalov, clayborg
Subscribers: lldb-commits, mohit.bhakkad, sagar, jaydeep, bhushan
Differential: D18638
llvm-svn: 269407
2016-05-13 11:04:47 +00:00
Sean Callanan 7736a208b8 [fix] Fixed a bug where const this would cause parser errors about $__lldb_expr.
In templated const functions, trying to run an expression would produce the
error

error: out-of-line definition of '$__lldb_expr' does not match any declaration
in 'foo' member declaration does not match because it is const qualified
error: 1 error parsing expression

which is no good.  It turned out we don't actually need to worry about "const,"
we just need to be consistent about the declaration of the expression and the
FunctionDecl we inject into the class for "this."

Also added a test case.

<rdar://problem/24985958>

llvm-svn: 268083
2016-04-29 18:09:03 +00:00
Pavel Labath 35e9ea3812 Revert "Fixed a bug where const this would cause parser errors about $__lldb_expr."
This reverts commit r267833 as it breaks the build. It looks like some work in progress got
committed together with the actual fix, but I'm not sure which one is which, so I'll revert the
whole patch and let author resumbit it after fixing the build error.

llvm-svn: 267861
2016-04-28 08:16:19 +00:00
Jim Ingham deb384d103 Fix an inefficiency in the handling of $__lldb_local_vars in expressions.
The code in ClangExpressionDeclMap::FindExternalVisibleDecls figures out what the token 
means, and adds the namespace to the lookup context, but since it doesn't mark it as
special in the search context, we go on to pass the name $__lldb_local_vars to the ASTSource
for further lookup.  Unless we've done our job wrong, those lookups will always fail, but
the can be costly.

So I added a bit to m_found & use that to short-circuit the lookup.

<rdar://problem/25613384>

llvm-svn: 267842
2016-04-28 02:17:02 +00:00
Sean Callanan 8bdcd52251 Fixed a bug where const this would cause parser errors about $__lldb_expr.
In templated const functions, trying to run an expression would produce the
error

error: out-of-line definition of '$__lldb_expr' does not match any declaration in 'foo'
member declaration does not match because it is const qualified
error: 1 error parsing expression

which is no good.  It turned out we don't actually need to worry about "const,"
we just need to be consistent about the declaration of the expression and the
FunctionDecl we inject into the class for "this."

Also added a test case.

<rdar://problem/24985958>

llvm-svn: 267833
2016-04-28 01:36:21 +00:00
Jim Ingham 0d6a90dfc3 Expressions can run without a process.
Code was added in ClangExpressionParser::ClangExpressionParser that was calling through
the process w/o checking that it was good.  Also, we were pretending that we could do something
reasonable if we had no target, but that's actually not true, so I check for a target at the
beginning of the constructor and don't make a compiler in that case.

<rdar://problem/25841198>

llvm-svn: 266944
2016-04-21 01:46:11 +00:00
Ulrich Weigand 9521ad2a49 Fix usage of APInt.getRawData for big-endian systems
Recommit modified version of r266311 including build bot regression fix.

This differs from the original r266311 by:

- Fixing Scalar::Promote to correctly zero- or sign-extend value depending
  on signedness of the *source* type, not the target type.

- Omitting a few stand-alone fixes that were already committed separately.

llvm-svn: 266422
2016-04-15 09:55:52 +00:00
Ulrich Weigand da70c17bfc Revert r266311 - Fix usage of APInt.getRawData for big-endian systems
Try to get 32-bit build bots running again.

llvm-svn: 266341
2016-04-14 17:22:18 +00:00
Ulrich Weigand ca07434234 Fix usage of APInt.getRawData for big-endian systems
The Scalar implementation and a few other places in LLDB directly
access the internal implementation of APInt values using the
getRawData method.  Unfortunately, pretty much all of these places
do not handle big-endian systems correctly.  While on little-endian
machines, the pointer returned by getRawData can simply be used as
a pointer to the integer value in its natural format, no matter
what size, this is not true on big-endian systems: getRawData
actually points to an array of type uint64_t, with the first element
of the array always containing the least-significant word of the
integer.  This means that if the bitsize of that integer is smaller
than 64, we need to add an offset to the pointer returned by
getRawData in order to access the value in its natural type, and
if the bitsize is *larger* than 64, we actually have to swap the
constituent words before we can access the value in its natural type.

This patch fixes every incorrect use of getRawData in the code base.
For the most part, this is done by simply removing uses of getRawData
in the first place, and using other APInt member functions to operate
on the integer data.

This can be done in many member functions of Scalar itself, as well
as in Symbol/Type.h and in IRInterpreter::Interpret.  For the latter,
I've had to add a Scalar::MakeUnsigned routine to parallel the existing
Scalar::MakeSigned, e.g. in order to implement an unsigned divide.

The Scalar::RawUInt, Scalar::RawULong, and Scalar::RawULongLong
were already unused and can be simply removed.  I've also removed
the Scalar::GetRawBits64 function and its few users.

The one remaining user of getRawData in Scalar.cpp is GetBytes.
I've implemented all the cases described above to correctly
implement access to the underlying integer data on big-endian
systems.  GetData now simply calls GetBytes instead of reimplementing
its contents.

Finally, two places in the clang interface code were also accessing
APInt.getRawData in order to actually construct a byte representation
of an integer.  I've changed those to make use of a Scalar instead,
to avoid having to re-implement the logic there.

The patch also adds a couple of unit tests verifying correct operation
of the GetBytes routine as well as the conversion routines.  Those tests
actually exposed more problems in the Scalar code: the SetValueFromData
routine didn't work correctly for 128- and 256-bit data types, and the
SChar routine should have an explicit "signed char" return type to work
correctly on platforms where char defaults to unsigned.

Differential Revision: http://reviews.llvm.org/D18981

llvm-svn: 266311
2016-04-14 14:32:01 +00:00
Jim Ingham ff7ac6a7b9 Breakpoint conditions were making result variables, which they should not do.
The result variables aren't useful, and if you have a breakpoint on a
common function you can generate a lot of these.  So I changed the
code that checks the condition to set ResultVariableIsInternal in the
EvaluateExpressionOptions that we pass to the execution.
Unfortunately, the check for this variable was done in the wrong place
(the static UserExpression::Evaluate) which is not how breakpoint
conditions execute expressions (UserExpression::Execute).  So I moved
the check to UserExpression::Execute (which Evaluate also calls) and made the
overridden method DoExecute.

llvm-svn: 266093
2016-04-12 17:17:35 +00:00
Jim Ingham bbadf2b7e5 The FixItList typedef should have been inside "class ClangDiagnostic".
llvm-svn: 265496
2016-04-06 00:25:44 +00:00
Greg Clayton a19af5812f Fix a crasher that could happen if ClangASTSource::CompleteType() found a type whose name matched, but came from a different language. We need to verify that any types we find are clang types before trying to extra a clang::QualType and then use it.
<rdar://problem/24138711>

llvm-svn: 265443
2016-04-05 19:29:05 +00:00
Jim Ingham a7c5e1922d Fix header name.
llvm-svn: 264883
2016-03-30 18:14:36 +00:00
Pavel Labath 6ce88f8d66 Fix warning in ClangExpressionParser
llvm-svn: 264847
2016-03-30 08:45:37 +00:00
Jim Ingham e5ee6f04ab Figure out what the fixed expression is, and print it. Added another target setting to
quietly apply fixits for those who really trust clang's fixits.

Also, moved the retry into ClangUserExpression::Evaluate, where I can make a whole new ClangUserExpression 
to do the work.  Reusing any of the parts of a UserExpression in situ isn't supported at present.

<rdar://problem/25351938>

llvm-svn: 264793
2016-03-29 22:00:08 +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
Sean Callanan 38167d2536 Removed an override of LookupSymbol that mistakenly disabled it for Clang.
llvm-svn: 264659
2016-03-28 21:07:53 +00:00
Sean Callanan 47cca78efa Record all translation units with more than one function in them (e.g., blocks).
Blocks and lambdas have their implementation functions stored in the IR for an
expression.  If we put the block/lambda into a result variable it needs to stay
around.  As a heuristic, remember any execution unit that has more than one
function in it.

<rdar://problem/22864976>

llvm-svn: 264483
2016-03-26 00:30:40 +00:00
Sean Callanan ed963704f5 Removed LoggingDiagnosticConsumer, an unused class.
llvm-svn: 264478
2016-03-25 23:51:25 +00:00
Lang Hames 09ff326ca2 Fix now-ambiguous references to Error.
llvm-svn: 264449
2016-03-25 19:27:24 +00:00
Jim Ingham a1e541bf9f Use Clang's FixItHints to correct expressions with "trivial" mistakes (e.g. "." for "->".)
This feature is controlled by an expression command option, a target property and the
SBExpressionOptions setting.  FixIt's are only applied to UserExpressions, not UtilityFunctions,
those you have to get right when you make them.

This is just a first stage.  At present the fixits are applied silently.  The next step
is to tell the user about the applied fixit.

<rdar://problem/25351938>

llvm-svn: 264379
2016-03-25 01:57:14 +00:00
Greg Clayton c9a078a4b1 Ignore global constructor warning in clang.
llvm-svn: 264361
2016-03-24 23:50:03 +00:00
Sean Callanan 00294b34a3 Backend support for top-level Clang epxressions
This patch adds a new ExecutionPolicy, eExecutionPolicyTopLevel, which
tells the expression parser that the expression should be JITted as top
level code but nothing (except static initializers) should be run.  I
have modified the Clang expression parser to recognize this execution
policy.  On top of the existing patches that support storing IR and
maintaining a map of arbitrary Decls, this is mainly just patching up a
few places in the expression parser.

I intend to submit a patch for review that exposes this functionality
through the "expression" command and through the SB API.  That patch
also includes a testcase for all of this.

<rdar://problem/22864976>

llvm-svn: 264095
2016-03-22 21:05:51 +00:00
Sean Callanan bd4dc69308 Collect IRExecutionUnits as part of persistent expression state.
IRExecutionUnits contain code and data that persistent declarations can
depend on.  In order to keep them alive and provide for lookup of these
symbols, we now allow any PersistentExpressionState to keep a list of
execution units.  Then, when doing symbol lookup on behalf of an 
expression, any IRExecutionUnit can consult the persistent expression
states on a particular Target to find the appropriate symbol.

<rdar://problem/22864976>

llvm-svn: 263995
2016-03-21 22:23:38 +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 b3a36df39e Handle any persistent Decl in the Clang expression parser, not just types.
Persistent decls have traditionally only been types.  However, we want to
be able to persist more things, like functions and global variables.  This
changes some of the nomenclature and the lookup rules to make this possible.

<rdar://problem/22864976>

llvm-svn: 263864
2016-03-19 00:51:43 +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
Ewan Crawford 7648dd375f Revert "Track expression language from one place in ClangExpressionParser"
r263099 seems to have broken some OSX tests

llvm-svn: 263107
2016-03-10 12:38:55 +00:00
Ewan Crawford 6dc9db5244 Track expression language from one place in ClangExpressionParser
The current expression language is currently tracked in a few places within the ClangExpressionParser constructor. 
This patch adds a private lldb::LanguageType attribute to the ClangExpressionParser class and tracks the expression language from that one place.

Author: Luke Drummond <luke.drummond@codeplay.com>
Differential Revision: http://reviews.llvm.org/D17719

llvm-svn: 263099
2016-03-10 10:31:08 +00:00
James Y Knight dc395b9d2b Update after r262737 in clang changed the accessor.
llvm-svn: 262739
2016-03-04 19:30:53 +00:00
Aidan Dodds 3cdf5516c6 remove unused local string in IRForTarget.cpp
Committed on behalf of: ldrumm <luke.drummond@codeplay.com>

Differential revision: http://reviews.llvm.org/D16412

llvm-svn: 262043
2016-02-26 18:03:06 +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 b129847aaa Improve readability and performance of ClangExpressionParser::FindFunctionInModule
Committed on behalf of: Luke Drummond

Differential Revision: http://reviews.llvm.org/D17274

llvm-svn: 261861
2016-02-25 13:07:04 +00:00
Ewan Crawford 615a807ee8 refactor/cleanup ClangExpressionParser::Parse
This patches does the following:

+ fix return type: ClangExpressionParser::Parse returns unsigned, but was actually returning a signed value, num_errors.
+ use helper clang::TextDiagnosticBuffer::getNumErrors() instead of counting the errors ourself.
+ limit scoping of block-level automatic variables as much as practical.
+ remove reused multipurpose TextDiagnosticBuffer::const_iterator in favour of loop-scoped err, warn, and note variables in the diagnostic printing code.
+ refactor diagnostic printing loops to use a proper loop invariant.

Author: Luke Drummond <luke.drummond@codeplay.com>
Differential Revision: http://reviews.llvm.org/D17273

llvm-svn: 261345
2016-02-19 17:55:10 +00:00
Ewan Crawford 766492fde3 Delete unused function in ClangExpressionParser
[git 65dafa83] introduced the GetBuiltinIncludePath function copied from cfe/lib/Driver/CC1Options.cpp

This function is no longer used in lldb's expression parser and I believe it is safe to remove it.


Author: Luke Drummond <luke.drummond@codeplay.com>
Differential Revision: http://reviews.llvm.org/D17266

llvm-svn: 261328
2016-02-19 14:31:41 +00:00
Bhushan D. Attarde 3592a6ec6b [LLDB][MIPS] Provide CPU string to compiler for appropriate code generation for MIPS
SUMMARY:
    This patch implements ArchSpec::GetClangTargetCPU() that provides string representing current architecture as a target CPU.
    This string is then passed to tools like clang so that they generate correct code for that target.
    
    Reviewers: clayborg, zturner
    Subscribers: mohit.bhakkad, sagar, jaydeep, lldb-commits
    Differential Revision: http://reviews.llvm.org/D17022

llvm-svn: 261206
2016-02-18 11:53:28 +00:00
Jason Molenda 62e0681afb Add -Wimplicit-fallthrough command line option to clang in
the xcode project file to catch switch statements that have a
case that falls through unintentionally.

Define LLVM_FALLTHROUGH to indicate instances where a case has code
and intends to fall through.  This should be in llvm/Support/Compiler.h;
Peter Collingbourne originally checked in there (r237766), then
reverted (r237941) because he didn't have time to mark up all the
'case' statements that were intended to fall through.  I put together
a patch to get this back in llvm http://reviews.llvm.org/D17063 but
it hasn't been approved in the past week.  I added a new
lldb-private-defines.h to hold the definition for now.

Every place in lldb where there is a comment that the fall-through
is intentional, I added LLVM_FALLTHROUGH to silence the warning.
I haven't tried to identify whether the fallthrough is a bug or
not in the other places.

I haven't tried to add this to the cmake option build flags.
This warning will only work for clang.

This build cleanly (with some new warnings) on macosx with clang
under xcodebuild, but if this causes problems for people on other
configurations, I'll back it out.

llvm-svn: 260930
2016-02-16 04:14:33 +00:00
Saleem Abdulrasool 2f1d3ac99d ExpressionParser: silence some GCC warnings
Silence a -Wreorder warning about order of member initialization and a
-Wqual-cast warning about casting away constness.  NFC.

llvm-svn: 260868
2016-02-15 03:23:14 +00:00
Sean Callanan 2a8fa2a888 Removed many JIT workarounds from IRForTarget.
Since IRExecutionUnit is now capable of looking up symbols, and the JIT is up to
the task of generating the appropriate relocations, we don't need to do all the
work that IRForTarget used to do to fixup symbols at the IR level.

We also don't need to allocate data manually (with its attendant bugs) because
the JIT is capable of doing so without crashing.

We also don't need the awkward lldb.call.realName metadata to determine what
calls are objc_msgSend, because they now just reference objc_msgSend.

To make this work, we ensure that we recognize which symbols are extern "C" and
report them to the compiler as such.  We also report the full Decl of functions
rather than just making up top-level functions with the appropriate types.

This should not break any testcases, but let me know if you run into any issues.

<rdar://problem/22864926>

llvm-svn: 260768
2016-02-13 00:01:46 +00:00
Sean Callanan b281480203 Centralized symbol lookup in IRExecutionUnit, and fixed the code model.
I'm preparing to remove symbol lookup from IRForTarget, where it constitutes a
dreadful hack working around no-longer-existing JIT bugs.  Thanks to our 
contributors, IRForTarget has a lot of smarts that IRExecutionUnit doesn't have,
so I've cleaned them up a bit and moved them over to IRExecutionUnit.

Also for historical reasons, IRExecutionUnit used the "Small" code model on non-
ELF platforms (namely, OS X).  That's no longer necessary, and we can use the
same code model as everyone else on OS X.  I've fixed that.

llvm-svn: 260734
2016-02-12 21:11:25 +00:00
Greg Clayton ae088e52f3 Now that SymbolFileDWARF supports having types in completely separate .pcm file with "-fmodules -gmodules", each SymbolFileDWARF can reference module DWARF info by looking in other DWARF files. Then if you have 1000 .o files that each reference one or more .pcm files in their debug info, a simple Module::FindTypes(...) call can end up searching the same .pcm file over and over and over. Now all internal FindTypes methods in classes (ModuleList, Module, SymbolFile) now take an extra argument:
llvm::DenseSet<lldb_private::SymbolFile *> &searched_symbol_files
    
Each time a SymbolFile::FindTypes() is called, it needs to check the searched_symbol_files list to make sure it hasn't already been asked to find the type and return immediately if it has been checked. This will stop circular dependencies from also crashing LLDB during type queries. 

This has proven to be an issue when debugging large applications on MacOSX that use DWARF in .o files. 

<rdar://problem/24581488>

llvm-svn: 260434
2016-02-10 21:28:13 +00:00
Siva Chandra 03ff5c8616 Take 2: Use an artifical namespace so that member vars do not hide local vars.
Summary: This relands r259810 with fix for failures on Mac.

Reviewers: spyffe, tfiala

Subscribers: tfiala, lldb-commits

Differential Revision: http://reviews.llvm.org/D16900

llvm-svn: 259902
2016-02-05 19:10:04 +00:00
Siva Chandra 77b326f39d Revert "Use an artifical namespace so that member vars do not hide local vars."
Summary:
This reverts commit 8af14b5f9af68c31ac80945e5b5d56f0a14b38e4.
Reverting as it breaks a few tests on Mac.

Reviewers: spyffe

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D16895

llvm-svn: 259823
2016-02-04 20:08:40 +00:00
Siva Chandra 375882dddb Use an artifical namespace so that member vars do not hide local vars.
Summary:
While evaluating expressions when stopped in a class method, there was a
problem of member variables hiding local variables. This was happening
because, in the context of a method, clang already knew about member
variables with their name and assumed that they were the only variables
with those names in scope. Consequently, clang never checks with LLDB
about the possibility of local variables with the same name and goes
wrong. This change addresses the problem by using an artificial
namespace "$__lldb_local_vars". All local variables in scope are
declared in the "$__lldb_expr" method as follows:

    using $__lldb_local_vars::<local var 1>;
    using $__lldb_local_vars::<local var 2>;
    ...

This hides the member variables with the same name and forces clang to
enquire about the variables which it thinks are declared in
$__lldb_local_vars. When LLDB notices that clang is enquiring about
variables in $__lldb_local_vars, it looks up local vars and conveys
their information if found. This way, member variables do not hide local
variables, leading to correct evaluation of expressions.

A point to keep in mind is that the above solution does not solve the
problem for one specific case:

    namespace N
    {
        int a;
    }

    class A
    {
    public:
        void Method();
        int a;
    };

    void
    A::Method()
    {
        using N::a;
        ...

        // Since the above solution only touches locals, it does not
        // force clang to enquire about "a" coming from namespace N.
    }

Reviewers: clayborg, spyffe

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D16746

llvm-svn: 259810
2016-02-04 18:38:35 +00:00
Aidan Dodds 1b6785a1df Add ability to override JIT expr compiler options.
Runtimes should be able to pass custom compilation options to the JIT for their stack frame. This patch adds a custom expression options member class to LanguageOptions, and modifies the clang expression evaluator to check the current runtime for those options. If those options are available on the runtime, they are passed to the clang compiler.

Committed for Luke Drummond.
Differential Revision: http://reviews.llvm.org/D15527

llvm-svn: 259644
2016-02-03 12:33:05 +00:00
Pavel Labath e03bd650f3 Fix build after clang interface change in r259489
llvm-svn: 259494
2016-02-02 13:07:27 +00:00
Todd Fiala 0647dbb1d8 Revert "fix up missing header from change r259084."
This change was made based on a bad signal from the
Green Dragon LLDB builder.  This change was not needed.
Reverting out r259114.

llvm-svn: 259216
2016-01-29 18:13:30 +00:00
Todd Fiala d12f3750a3 fix up missing header from change r259084.
llvm-svn: 259114
2016-01-28 23:17:53 +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
Chaoren Lin edf25990a4 Fix build after rL259070.
llvm-svn: 259086
2016-01-28 20:25:46 +00:00
Manman Ren 98f9bc6456 Update lldb for API change in clang r259070.
llvm-svn: 259084
2016-01-28 19:55:50 +00:00
Sean Callanan b0300a4c30 Enable the use of modules in the expression parser by default.
If your program refers to modules (as indicated in DWARF) we will now try to
load these modules and give you access to their types in expressions.  This used
to be gated by a setting ("settings set target.auto-import-clang-modules true")
but that setting defaulted to false.  Now it defaults to true -- but you can
disable it by toggling the setting to false.

llvm-svn: 257812
2016-01-14 21:46:09 +00:00
Zachary Turner a505be4e5d Fix some compiler warnings with MSVC 2015.
llvm-svn: 257671
2016-01-13 21:22:00 +00:00
Siva Chandra 9293fc4185 Better scheme to lookup alternate mangled name when looking up function address.
Summary:
This change is relevant for inferiors compiled with GCC. GCC does not
emit complete debug info for std::basic_string<...>, and consequently, Clang
(the LLDB compiler) does not generate correct mangled names for certain
functions.

This change removes the hard-coded alternate names in
ItaniumABILanguageRuntime.cpp.

Before the hard-coded names were put in ItaniumABILanguageRuntime.cpp, one could
not evaluate std::string methods (ex. std::string::length). After putting in
the hard-coded names, one could evaluate them. However, it did not still
enable one to call methods on, say for example, std::vector<string>.
This change makes that possible.

There is some amount of incompleteness in this change. Consider the
following example:

std::string hello("hello"), world("world");
std::map<std::string, std::string> m;
m[hello] = world;

One can still not evaluate the expression "m[hello]" in LLDB. Will
address this issue in another pass.

Reviewers: jingham, vharron, evgeny777, spyffe, dawn

Subscribers: clayborg, dawn, lldb-commits

Differential Revision: http://reviews.llvm.org/D12809

llvm-svn: 257113
2016-01-07 23:32:34 +00:00
Dawn Perchik b59257841e Fix scope-based lookup when more than one function is found.
When multiple functions are found by name, lldb removes duplicate entries of
functions with the same type, so the first function in the symbol context list
is chosen, even if it isn't in scope. This patch uses the declaration context
of the execution context to select the function which is in scope.

This fixes cases like the following:

    int func();
    namespace ns {
	int func();
	void here() {
	    // Run to BP here and eval 'p func()';
	    // lldb used to find ::func(), now finds ns::func().
	}
    }

Reviewed by: clayborg
Subscribers: lldb-commits
Differential Revision: http://reviews.llvm.org/D15312

llvm-svn: 255439
2015-12-12 19:31:41 +00:00
Greg Clayton e6b36cdd4d Trying to submit 254476 one more time. This implement -gmodule debugging support.
It was previously reverted due to issues that showed up only on linux. I was able to reproduce these issues and fix the underlying cause.

So this is the same patch as 254476 with the following two fixes:
- Fix not trying to complete classes that don't have external sources
- Fix ClangASTSource::CompleteType() to check the decl context of types that it finds by basename to ensure we don't complete a type "S" with a type like "std::S". Before this fix ClangASTSource::CompleteType() would accept _any_ type that had a matching basename and copy it into the other type.

<rdar://problem/22992457>

llvm-svn: 254980
2015-12-08 01:02:08 +00:00
Sean Callanan a3444ffcdd Made the ClangASTImporter into a shared pointer, eliminating a race condition.
It used to be a unique pointer, and there could be a case where ClangASTSource
held onto a copy of the pointer but Target::Destroy destroyed the unique pointer
in the mean time.

I also ensured that there is a validity check on the target (which confirms that
a ClangASTImporter can be generated) before the target's shared pointer is
copied into ClangASTSource.

This race condition caused a crash if Target::Destroy was called and then later
the target objecct was deleted.

llvm-svn: 252665
2015-11-10 22:54:42 +00:00
Bruce Mitchener 9ccb970f23 Make lldb::endian::InlHostByteOrder() private.
Summary:
Since this is within the lldb namespace, the compiler tries to
export a symbol for it. Unfortunately, since it is inlined, the
symbol is hidden and this results in a mess of warnings when
building on OS X with cmake.

Moving it to the lldb_private namespace eliminates that problem.

Reviewers: clayborg

Subscribers: emaste, lldb-commits

Differential Revision: http://reviews.llvm.org/D14417

llvm-svn: 252396
2015-11-07 04:40:13 +00:00
Duncan P. N. Exon Smith 33e43ca608 lldb/ADT: Remove implicit ilist iterator conversions, NFC
Remove implicit ilist iterator conversions before reapplying r252372
(which will disallow them).

llvm-svn: 252378
2015-11-07 00:54:13 +00:00
Eugene Zelenko 26f34fb6df Fix some Clang-tidy warnings and formatting in recently added code.
Fixed Clang-tidy warnings:

* modernize-use-override;
* modernize-use-nullptr;
* modernize-use-default;
* readability-simplify-boolean-expr.

llvm-svn: 252374
2015-11-07 00:28:50 +00:00
Jim Ingham c29e698b8e Add IRExecutionUnitSP to lldb-forward and use it instead of hand-rolling in place.
llvm-svn: 252129
2015-11-05 01:50:42 +00:00
Jim Ingham 51148e9f94 AddInitialArguments -> AddArguments, and we pass in the struct_address and push it too. All the
callers had to do this by hand and we ended up never actually adding initial arguments and then
reusing them by passing in the struct address separately, so the distinction wasn't needed.

llvm-svn: 252108
2015-11-05 00:24:18 +00:00
Jim Ingham 19a63fc6fa Add the ability to pass an EvaluateExpressionOptions when you make a UserExpression. This
isn't used in this commit but will be in a future commit.

llvm-svn: 251887
2015-11-03 02:11:24 +00:00
Ryan Brown 998c8a1c1c Create an expression parser for Go.
The Go interpreter doesn't JIT or use LLVM, so this also
moves all the JIT related code from UserExpression to a new class LLVMUserExpression.

Differential Revision: http://reviews.llvm.org/D13073

Fix merge

llvm-svn: 251820
2015-11-02 19:30:40 +00:00
Adrian McCarthy 3f989d4e6e Revert "Clang module compilation options need to be per-platform."
This reverts commit r251340.

Breaks the Windows build because Windows doesn't have getuid.  The fix is not obvious.

llvm-svn: 251354
2015-10-26 21:38:41 +00:00
Sean Callanan df0ac7038f Clang module compilation options need to be per-platform.
On UNIX (but not Darwin) the username needs to be respected when creating a 
temporary module directory, so that different users don't pollute each others'
module caches.

llvm-svn: 251340
2015-10-26 20:33:24 +00:00
Sean Callanan 3b436d23ca Fixed some issues with reporting "this" when the current function is not listed
in DWARF as a member of a class, but it has a "this" parameter.  Specifically,
*this needs to have the LLDB expression added as a method.

This fixes TestWithLimitDebugInfo.

llvm-svn: 251151
2015-10-23 21:45:02 +00:00
Eugene Zelenko 4c3f2b9446 Fix Clang-tidy modernize-use-override warnings in some files in source/Plugins; other minor fixes.
Differential Revision: http://reviews.llvm.org/D13916

llvm-svn: 250872
2015-10-21 01:03:30 +00:00
Bruce Mitchener 804f981fd0 Reduce header inclusion in Expression.
Reviewers: spyffe

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D13333

llvm-svn: 249570
2015-10-07 17:22:54 +00:00
Sean Callanan 9fda9d2177 Add PersistentVariableDelegate to handle language-specific dematerialization.
The concept here is that languages may have different ways of communicating
results.  In particular, languages may have different names for their result
variables and in fact may have multiple types of result variables (e.g.,
error results).  Materializer was tied to one specific model of result handling.

Instead, now UserExpressions can register their own handlers for the result
variables they inject.  This allows language-specific code in Materializer to
be moved into the expression parser plug-in, and it simplifies Materializer.
These delegates are subclasses of PersistentVariableDelegate.

PersistentVariableDelegate can provide the name of the result variable, and is
notified when the result variable is populated.  It can also be used to touch
persistent variables if need be, updating language-specific state.  The
UserExpression owns the delegate and can decide on its result based on
consulting all of its (potentially multiple) delegates.

The user expression itself now makes the determination of what the final result
of the expression is, rather than relying on the Materializer, and I've added a
virtual function to UserExpression to allow this.

llvm-svn: 249233
2015-10-03 09:09:01 +00:00
Sean Callanan 9301ec1191 Eliminated redundant "constructors" for ClangExpressionVariable.
The ClangExpressionVariable::CreateVariableInList functions looked cute, but                                                                                                                                           
caused more confusion than they solved.  I removed them, and instead made sure                                                                                                                                         
that there are adequate facilities for easily adding newly-constructed                                                                                                                                                 
ExpressionVariables to lists.      

I also made some of the constructors that are common be generic, so that it's
possible to construct expression variables from generic places (like the ABI and
ValueObject) without having to know the specifics about the class.

llvm-svn: 249095
2015-10-01 23:07:06 +00:00
Sean Callanan b92bd7538e Made Target hold a map of languages to TypeSystems, and added some accessors.
Also added some target-level search functions so that persistent variables and
symbols can be searched for without hand-iterating across the map of
TypeSystems.

llvm-svn: 249027
2015-10-01 16:28:02 +00:00
Sean Callanan 7aeb7e256b Changed PersistentExpressionState to allow symbol lookups. Clang doesn't
report any (yet).

llvm-svn: 248970
2015-10-01 00:38:06 +00:00
Sean Callanan 8f1f9a1be3 Now persistent expression data no longer lives with the Target, but rather with
the corresponding TypeSystem.  This makes sense because what kind of data there
is -- and how it can be looked up -- depends on the language.

Functionality that is common to all type systems is factored out into
PersistentExpressionState.

llvm-svn: 248934
2015-09-30 19:57:57 +00:00
Sean Callanan 6d874ee31a Moved ClangExpressionHelper.h into the Clang expression parser plug-in.
llvm-svn: 248631
2015-09-25 22:47:07 +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
Sean Callanan 3820e9cd17 ExpressionVariable now uses llvm::cast() instead of As...() for RTTI.
As part of our overall switch from hand-rolling RTTI to using LLVM-compatible
methods, I've done the same for ExpressionVariable.  The main documentation for
how to do this is in TypeSystem.h, so I've simply referred to that.

llvm-svn: 247085
2015-09-08 22:23:39 +00:00
Keno Fischer 311435dbb6 Fix Makefile build
llvm-svn: 246932
2015-09-05 20:01:56 +00:00
Sean Callanan bc8ac34e61 This patch separates the generic portion of ClangExpressionVariable, which
stores information about a variable that different parts of LLDB use, from the
compiler-specific portion that only the expression parser cares about.

http://reviews.llvm.org/D12602

llvm-svn: 246871
2015-09-04 20:49:51 +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 49948af9cd Fix cmake build.
llvm-svn: 246746
2015-09-03 04:17:57 +00:00
Sean Callanan e33724f371 In preparation for factoring persistent variables into a generic part and a
Clang-specific part, create the ExpressionVariable source/header file and
move ClangExpressionVariable into the Clang expression parser plugin.

It is expected that there are some ugly #include paths... these will be resolved
by either (1) making that code use generic expression variables (once they're
separated appropriately) or (2) moving that code into a plug-in, often
the expression parser plug-in.

llvm-svn: 246737
2015-09-03 00:35:46 +00:00