Commit Graph

282 Commits

Author SHA1 Message Date
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 0f625f42fd Use the preferred display language when making a persistent variable from a
ValueObject.

llvm-svn: 248971
2015-10-01 00:39:03 +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 4dbb271fcc Moved more Clang-specific parts of the expression parser into the Clang plugin.
There are still a bunch of dependencies on the plug-in, but this helps to
identify them.
There are also a few more bits we need to move (and abstract, for example the
ClangPersistentVariables).

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

Subscribers: lldb-commits

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

llvm-svn: 248461
2015-09-24 03:54:50 +00:00
Bruce Mitchener 4ad833400f Rename GetChildClangTypeAtIndex to GetChildCompilerTypeAtIndex
Reviewers: clayborg

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D13020

llvm-svn: 248175
2015-09-21 16:48:48 +00:00
Bruce Mitchener 1c95046aa5 Reduce inclusion of clang headers.
Summary:
With the recent changes to separate clang from the core structures
of LLDB, many inclusions of clang headers can be removed.

Reviewers: clayborg

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D12954

llvm-svn: 248004
2015-09-18 17:02:48 +00:00
Enrico Granata ac49453b58 Introduce the notion of an escape helper. Different languages have different notion of what to print in a string and how to escape non-printable things. The escape helper is where this notion is provided to LLDB
This is NFC, other than a code re-org

llvm-svn: 247200
2015-09-09 22:30:24 +00:00
Enrico Granata ad650a189c Preparatory work for letting language plugins help the StringPrinter with formatting special characters
llvm-svn: 247189
2015-09-09 20:59:49 +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
Sean Callanan 30e339749f Jim told me about a cleaner way to include headers from plug-ins.
This is still something I need to fix, but at least it's not so ugly, and it's
consistent with the other code that does that so we will catch it when we purge
all such code.

llvm-svn: 246738
2015-09-03 00:48:23 +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
Greg Clayton 99558cc424 Final bit of type system cleanup that abstracts declaration contexts into lldb_private::CompilerDeclContext and renames ClangType to CompilerType in many accessors and functions.
Create a new "lldb_private::CompilerDeclContext" class that will replace all direct uses of "clang::DeclContext" when used in compiler agnostic code, yet still allow for conversion to clang::DeclContext subclasses by clang specific code. This completes the abstraction of type parsing by removing all "clang::" references from the SymbolFileDWARF. The new "lldb_private::CompilerDeclContext" class abstracts decl contexts found in compiler type systems so they can be used in internal API calls. The TypeSystem is required to support CompilerDeclContexts with new pure virtual functions that start with "DeclContext" in the member function names. Converted all code that used lldb_private::ClangNamespaceDecl over to use the new CompilerDeclContext class and removed the ClangNamespaceDecl.cpp and ClangNamespaceDecl.h files.

Removed direct use of clang APIs from SBType and now use the abstract type systems to correctly explore types.

Bulk renames for things that used to return a ClangASTType which is now CompilerType:

    "Type::GetClangFullType()" to "Type::GetFullCompilerType()"
    "Type::GetClangLayoutType()" to "Type::GetLayoutCompilerType()"
    "Type::GetClangForwardType()" to "Type::GetForwardCompilerType()"
    "Value::GetClangType()" to "Value::GetCompilerType()"
    "Value::SetClangType (const CompilerType &)" to "Value::SetCompilerType (const CompilerType &)"
    "ValueObject::GetClangType ()" to "ValueObject::GetCompilerType()"
    many more renames that are similar.

llvm-svn: 245905
2015-08-24 23:46:31 +00:00
Sagar Thakur 8536fd1b64 [LLDB] Use llvm::APInt and llvm::APFloat in Scalar and RegisterValue
Eliminated ENABLE_128_BIT_SUPPORT and union ValueData from Scalar.cpp and use llvm::APInt and llvm::APFloat for all integer and floating point types. Also used Scalar in RegisterValue.cpp

Reviewers: tberghammer, ovyalov, clayborg, labath
Subscribers: lldb-commits, nitesh.jain, jaydeep 
Differential: http://reviews.llvm.org/D12100
llvm-svn: 245547
2015-08-20 09:12:46 +00:00
Pavel Labath bb467f6f04 Revert "[LLDB] Use llvm::APInt and llvm::APFloat in Scalar and RegisterValue"
Reverting as this commit causes an infinite loop.

llvm-svn: 245222
2015-08-17 15:28:05 +00:00
Sagar Thakur ee3443e0d6 [LLDB] Use llvm::APInt and llvm::APFloat in Scalar and RegisterValue
Eliminated ENABLE_128_BIT_SUPPORT and union ValueData from Scalar.cpp and use llvm::APInt and llvm::APFloat for all integer and floating point types. Also used Scalar in RegisterValue.cpp

Reviewers: jaydeep, clayborg, jasonmolenda, ovyalov, emaste
Subscribers: tberghammer, ovyalov, emaste, mohit.bhakkad, nitesh.jain, bhushan
Differential: http://reviews.llvm.org/D10919
llvm-svn: 245216
2015-08-17 12:05:31 +00:00
Greg Clayton a1e5dc86a6 ClangASTType is now CompilerType.
This is more preparation for multiple different kinds of types from different compilers (clang, Pascal, Go, RenderScript, Swift, etc).

llvm-svn: 244689
2015-08-11 22:53:00 +00:00
Greg Clayton d8d4a57b37 First step in getting LLDB ready to support multiple different type systems.
This is the work done by Ryan Brown from http://reviews.llvm.org/D8712 that makes a TypeSystem class and abstracts types to be able to use a type system.

All tests pass on MacOSX and passed on linux the last time this was submitted. 

llvm-svn: 244679
2015-08-11 21:38:15 +00:00
Oleksiy Vyalov 9dcdd2ee03 Revert r244308 since it's introducing test regressions on Linux:
- TestLldbGdbServer.py both clang & gcc, i386 and x86_64
 - TestConstVariables.py gcc, i386 and x86_64
 - 112 failures clang, i386

llvm-svn: 244514
2015-08-10 21:49:50 +00:00
Sagar Thakur d754890047 [LLDB][MIPS] Fix offsets of all register sets and add MSA regset and FRE=1 mode support
This change :

    - Fixes offsets of all register sets for Mips.
    - Adds MSA register set and FRE=1 mode support for FP register set.
    - Separates lldb register numbers and register infos of freebsd/mips64 from linux/mips64.
    - Re-orders the register numbers of all kinds for mips to be consistent with freebsd order of register numbers.
    - Eliminates ENABLE_128_BIT_SUPPORT and union ValueData from Scalar.cpp and uses llvm::APInt and llvm::APFloat for all integer and floating point types.

Reviewers : emaste, jaydeep, clayborg
Subscribers : emaste, mohit.bhakkad, nitesh.jain, bhushan
Differential : http://reviews.llvm.org/D10919

llvm-svn: 244308
2015-08-07 06:39:38 +00:00
Chaoren Lin d7bdc27b12 Allow ValueObject::Dereference to dereference references.
Reviewers: clayborg

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D11667

llvm-svn: 243716
2015-07-31 00:35:40 +00:00
Pavel Labath c7c30eb528 Revert "Introduce a TypeSystem interface to support adding non-clang languages."
This seems to break expression evaluation on the linux build.

llvm-svn: 239366
2015-06-08 23:38:06 +00:00
Pavel Labath c33ae024a6 Introduce a TypeSystem interface to support adding non-clang languages.
Reviewers: clayborg

Reviewed By: clayborg

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D8712
Original Author: Ryan Brown <ribrdb@google.com>

llvm-svn: 239360
2015-06-08 22:27:10 +00:00
Enrico Granata d595733617 Fix a bug where trying to Dump() a ValueObject would use the static/non-synthetic version of the value even if the ValueObject one actually called Dump() on turned out to be dynamic and/or synthetic
This was of course overridable by using DumpValueObjectOptions, but the default should be saner and the previous behavior made for a few fun investigations....

rdar://problem/21065149

llvm-svn: 238961
2015-06-03 20:43:54 +00:00
Zachary Turner 1124045ac7 Don't #include "lldb-python.h" from anywhere.
Since interaction with the python interpreter is moving towards
being more isolated, we won't be able to include this header from
normal files anymore, all includes of it should be localized to
the python library which will live under source/bindings/API/Python
after a future patch.

None of the files that were including this header actually depended
on it anyway, so it was just a dead include in every single instance.

llvm-svn: 238581
2015-05-29 17:41:47 +00:00
Zachary Turner 386aafa6e3 Remove unused #includes of ScriptInterpreterPython.h
llvm-svn: 238470
2015-05-28 19:57:03 +00:00
Enrico Granata bb642e5456 Constant result ValueObjects are - well - constant
And they also do not have a thread/frame attached to them

That makes dynamic and synthetic values attached to them impossible to update - which, among other things, makes it impossible to properly display persistent variables of types that could have such dynamic/persistent values

Fix this by making it so that a ValueObject can control its constantness (hint: dynamic and synthetic values cannot be constant) and whether it wants to let itself be updated when an invalid thread is around

llvm-svn: 237504
2015-05-16 01:27:00 +00:00
Siva Chandra e32f2b57ff [ValueObject::GetPointeeData] Get addr from value for eValueHostAddress values.
Summary:
After r236447, ValueObject::GetAddressOf returns LLDB_INVALID_ADDRESS
when the value type is eValueHostAddress. For such a case, clients of
GetAddressOf should get the address from the scalar part of the value
instead of using the value returned by GetAddressOf directly.

This change also makes ValueObject::GetAddressOf set the address type to
eAddressTypeHost for values of eValueHostAddress so that clients can
recognize that they need to fetch the address from the scalar part
of the value.

Test Plan: ninja check-lldb on linux

Reviewers: clayborg, ovyalov

Reviewed By: ovyalov

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D9490

llvm-svn: 236473
2015-05-05 00:41:35 +00:00
Siva Chandra a3747a9d31 [ValueObject] Do not return address of eValueTypeHostAddress values.
Summary:
This fixes TestRegisterVariables for clang and hence it is enabled in this commit.


Test Plan: dotest.py -C clang -p TestRegisterVariables

Reviewers: clayborg

Reviewed By: clayborg

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D9421

llvm-svn: 236447
2015-05-04 19:43:34 +00:00
Enrico Granata ef238c1df2 This fixes the build I previously broke - and actually makes the test case work just like I promised
llvm-svn: 232115
2015-03-12 22:30:58 +00:00
Bruce Mitchener 11d86362ae Remove duplicated code for synthetic array members.
Summary:
The code for GetSyntheticArrayMemberFromPointer and
GetSyntheticArrayMemberFromArray was identical, so just collapse the
the methods into one.

Reviewers: granata.enrico, clayborg

Reviewed By: clayborg

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D7911

llvm-svn: 230708
2015-02-26 23:55:39 +00:00
Greg Clayton 526ae040ba Make a more complete fix for always supplying an execution context when getting byte sizes from types.
There was a test in the test suite that was triggering the backtrace logging output that requested that the client pass an execution context. Sometimes we need the process for Objective C types because our static notion of the type might not align with the reality when being run in a live runtime.

Switched from an "ExecutionContext *" to an "ExecutionContextScope *" for greater ease of use.

llvm-svn: 228892
2015-02-12 00:34:25 +00:00
Enrico Granata 560558eb7c Introduce the notion of "runtime support values"
A runtime support value is a ValueObject whose only purpose is to support some language runtime's operation, but it does not directly provide any user-visible benefit
As such, unless the user is working on the runtime support, it is mostly safe for them not to see such a value when debugging

It is a language runtime's job to check whether a ValueObject is a support value, and that - in conjunction with a target setting - is used by frame variable and target variable
SBFrame::GetVariables gets a new overload with yet another flag to dictate whether to return those support values to the caller - that which defaults to the setting's value

rdar://problem/15539930

llvm-svn: 228791
2015-02-11 02:35:39 +00:00
Enrico Granata 951bdd5f41 Move several GetByteSize() calls over to the brave new world of taking an ExecutionContext*
And since enough of these are doing the right thing, add a test case to verify we are doing the right thing with freeze drying ObjC object types

Fixes rdar://18092770

llvm-svn: 227282
2015-01-28 01:09:45 +00:00
Enrico Granata 1cd5e921e1 Preparatory infrastructural work to support dynamically determining sizes of ObjC types via the runtime
This is necessary because the byte size of an ObjC class type is not reliably statically knowable (e.g. because superclasses sit deep in frameworks that we have no debug info for)
The lack of reliable size info is a problem when trying to freeze-dry an ObjC instance (not the pointer, the pointee)

This commit lays the foundation for having language runtimes help in figuring out byte sizes, and having ClangASTType ask for runtime help
No feature change as no runtime actually implements the logic, and nowhere is an ExecutionContext passed in yet

llvm-svn: 227274
2015-01-28 00:07:51 +00:00
Tamas Berghammer 5a9919ff35 Fix indentation in ValueObject.cpp (test commit)
llvm-svn: 226906
2015-01-23 10:54:21 +00:00
Enrico Granata de61ebafcf Add an API to ValueObject that iterates over the entire parent chain via a callback, and rewrite GetRoot() in terms of this general iteration API. NFC
llvm-svn: 226771
2015-01-22 03:07:34 +00:00
Enrico Granata ed3228aa5f Allow individual ValueObjects to pick their preferred display language
Most of the time, we can use context information just fine to choose a language (i.e. the language of the frame that the root object was defined in, if any); but in some cases, synthetic children may be fabricated as root frame-less entities, and then we wouldn't know any better

This patch allows (internal) synthetic child providers to set a display language on the children they generate, should they so choose

llvm-svn: 226634
2015-01-21 01:47:13 +00:00
Enrico Granata 20c321caf8 This patch fixes my think-o in ValueObject::UpdateValueIfNeeded() about the right thing to assert()
It also comes with a (rudimentary) test case that gets itself in a failed update scenario, and checks that we don't crash
This is the easiest case I could think of that forces the failed update case Zachary was seeing

llvm-svn: 225463
2015-01-08 19:11:43 +00:00
Enrico Granata 1a4d078583 Fix a problem where a ValueObject could fail to update itself, but since it was previously valid, we'd have an old checksum to compare aginst no new checksum (because failure to update), and assert() and die. Fix the problem by only caring about this assertion logic if updates succeed
llvm-svn: 225418
2015-01-08 00:29:12 +00:00
Enrico Granata 7863991945 Cleanup some redundant code
llvm-svn: 224659
2014-12-20 01:41:27 +00:00
Enrico Granata 972be53f02 Provide CreateValueFromData,Expression at the SBTarget level as well as the SBValue level; and also make all the implenentations agree on using the matching ValueObject::Create instead of doing code copypastas
llvm-svn: 224460
2014-12-17 21:18:43 +00:00
Enrico Granata ff0f23dd41 Remove the last vestige of the world before data formatters :-)
Function pointers had a summary generated for them bypassing formatters, directly as part of the ValueObject subsystem

This patch transitions that code into a hardcoded summary

llvm-svn: 223906
2014-12-10 02:00:45 +00:00
Enrico Granata 986fa5f4eb Extend ValueObject::GetExpressionPath() to do something reasonable for synthetic children
Because of the way they are created, synthetic children cannot (in general) have a sane expression path

A solution to this would be letting the parent front-end generate expression paths for its children
Doing so requires a significant amount of refactoring, and might not always lead to better results (esp. w.r.t. C++ templates)

This commit takes a simpler approach:
- if a synthetic child is of pointer type and it's a target pointer, then emit *((T)value)
- if a synthetic child is a non-pointer, but its location is in the target, then emit *((T*)loadAddr)
- if a synthetic child has a value, emit ((T)value)
- else, don't emit anything

Fixes rdar://18442386

llvm-svn: 223836
2014-12-09 21:41:16 +00:00
Sean Callanan 7375f3e30e Fixed ValueObject::UpdateValueIfNeeded to keep
track of the checksum of the object so we can
track if it is modified.  This fixes a testcase
(test/expression_command/issue_11588) on OS X.

Patch by Enrico Granata.

llvm-svn: 223830
2014-12-09 21:18:59 +00:00
Enrico Granata e29df230cd This patch does a few things:
- adds a new flag to mark ValueObjects as "synthetic children generated"
- vends new Create functions as part of the SyntheticChildrenFrontEnd that set the flag automatically
- moves synthetic child providers over to using these new functions

No visible feature change, but preparatory work for feature change

llvm-svn: 223819
2014-12-09 19:51:20 +00:00
Enrico Granata 0c10a85000 Add the ability for an SBValue to create a persisted version of itself.
Such a persisted version is equivalent to evaluating the value via the expression evaluator, and holding on to the $n result of the expression, except this API can be used on SBValues that do not obviously come from an expression (e.g. are the result of a memory lookup)

Expose this via SBValue::Persist() in our public API layer, and ValueObject::Persist() in the lldb_private layer

Includes testcase

Fixes rdar://19136664

llvm-svn: 223711
2014-12-08 23:13:56 +00:00
Enrico Granata 49bfafb510 Shuffle APIs around a little bit, so that if you pass custom summary options, we don't end up caching the summary hence obtained. You may want to obtain an uncapped summary, but this should not be reflected in the summary we cache. The drawback is that we don't cache as aggressively as we could, but at least you get to have different summaries with different options without having to reset formatters or the SBValue at each step
llvm-svn: 222280
2014-11-18 23:36:25 +00:00
Enrico Granata f35bc63220 This is a large, but clearical, commit that enables the C++ formatters to take on the additional TypeSummaryOptions argument. It is still not used for anything, but it is now there. Adding support for this extra argument to Python formatters will follow suit
llvm-svn: 221486
2014-11-06 21:55:30 +00:00