Making ClangExpression hold on to a WP to the Process instead of a SP. This fix should enable us to have per-process maps of ClangExpressions without fear of keeping the process alive forever

llvm-svn: 164082

them in one place rather than having them replicated
across all the potential function wrappers.

<rdar://problem/12293880>

llvm-svn: 163857

information from the Objective-C runtime.

This patch takes the old AppleObjCSymbolVendor and
replaces it with an AppleObjCTypeVendor, which is
much more lightweight.  Specifically, the SymbolVendor
needs to pretend that there is a backing symbol file
for the Types it vends, whereas a TypeVendor only
vends bare ClangASTTypes.  These ClangASTTypes only
need to exist in an ASTContext.

The ClangASTSource now falls back to the runtime's
TypeVendor (if one exists) if the debug information
doesn't find a complete type for a particular
Objective-C interface.  The runtime's TypeVendor
maintains an ASTContext full of types it knows about,
and re-uses the ISA-based type query information used
by the ValueObjects.

Currently, the runtime's TypeVendor doesn't provide
useful answers because we haven't yet implemented a
way to iterate across all ISAs contained in the target
process's runtime.  That's the next step.

llvm-svn: 163651

llvm-svn: 163641

which can conflict with accurate crash reporting
in multithreaded contexts.

llvm-svn: 163282

Make breakpoint setting by file and line much more efficient by only looking for inlined breakpoint locations if we are setting a breakpoint in anything but a source implementation file. Implementing this complex for a many reasons. Turns out that parsing compile units lazily had some issues with respect to how we need to do things with DWARF in .o files. So the fixes in the checkin for this makes these changes:
- Add a new setting called "target.inline-breakpoint-strategy" which can be set to "never", "always", or "headers". "never" will never try and set any inlined breakpoints (fastest). "always" always looks for inlined breakpoint locations (slowest, but most accurate). "headers", which is the default setting, will only look for inlined breakpoint locations if the breakpoint is set in what are consudered to be header files, which is realy defined as "not in an implementation source file". 
- modify the breakpoint setting by file and line to check the current "target.inline-breakpoint-strategy" setting and act accordingly
- Modify compile units to be able to get their language and other info lazily. This allows us to create compile units from the debug map and not have to fill all of the details in, and then lazily discover this information as we go on debuggging. This is needed to avoid parsing all .o files when setting breakpoints in implementation only files (no inlines). Otherwise we would need to parse the .o file, the object file (mach-o in our case) and the symbol file (DWARF in the object file) just to see what the compile unit was.
- modify the "SymbolFileDWARFDebugMap" to subclass lldb_private::Module so that the virtual "GetObjectFile()" and "GetSymbolVendor()" functions can be intercepted when the .o file contenst are later lazilly needed. Prior to this fix, when we first instantiated the "SymbolFileDWARFDebugMap" class, we would also make modules, object files and symbol files for every .o file in the debug map because we needed to fix up the sections in the .o files with information that is in the executable debug map. Now we lazily do this in the DebugMapModule::GetObjectFile()

Cleaned up header includes a bit as well.

llvm-svn: 162860

llvm-svn: 162162

llvm-svn: 162161

are materialized.

<rdar://problem/12105013>

llvm-svn: 162046

Remember to copy the address byte size and the byte order when copying data into a DWARF location object, or things will go wrong.

llvm-svn: 161721

llvm-svn: 161719

Fixed an issue that could cause references the shared data for an object file to stay around longer than intended and could cause memory bloat when debugging multiple times.

llvm-svn: 161716

and instead made us use implicit casts to bool.
This generated a warning in C++11.

<rdar://problem/11930775>

llvm-svn: 161559

<rdar://problem/12027563> Making sure that some class of stop-hook commands that involve po'ing objects do not cause an endless recursion

llvm-svn: 161271

keep a shared pointer to their disassembler.  This
is important for the LLVM-C disassembler because
it needs to lock its parent in order to disassemble
itself.

This means that every interface that returned a
Disassembler* needs to return a DisassemblerSP, so
that the instructions and any external owners share
the same reference count on the object.  I changed
all clients to use this shared pointer, which also
plugged a few leaks.

<rdar://problem/12002822>

llvm-svn: 161123

Objective-C method names when looking for functions
in the top level or a namespace.  Method names should
only be found via FindExternalLexicalDecls.

<rdar://problem/11711679>

llvm-svn: 160907

sel_getName() calls are generated for all Objective-C
selectors before static literals are moved to the
static allocation.  This prevents errors of the form

Internal error [IRForTarget]: Couldn't change a static
reference to an Objective-C selector to a dynamic
reference

<rdar://problem/11331906>

llvm-svn: 160887

to returned by expressions, by removing the
__cxa_atexit call that would normally cause these
objects to be destroyed.  This also prevents many
errors of the form

Couldn't rewrite one of the arguments of a function call
error: Couldn't materialize struct: Structure hasn't been laid out yet

<rdar://problem/11309402>

llvm-svn: 160596

Improved the error message when we can find a function in the current program by printing the demangled name.

Also added the ability to create lldb_private::Mangled instances with a ConstString when we already have a ConstString for a mangled or demangled name. Also added the ability to call SetValue with a ConstString and also without a boolean to indicate if the string is mangled where we will now auto-detect if the string is mangled.

llvm-svn: 160450

llvm-svn: 160338

<rdar://problem/11672978> Fixing an issue where an ObjC object might come out without a description because the expression used to obtain it would timeout before running to completion

llvm-svn: 160326

Allow "frame variable" to find ivars without the need for "this->" or "self->".  

llvm-svn: 160211

current symbol context is a C++ or Objective-C
instance method.

Specifically, ensure that we fetch information
on the current block, not just the current
function.

llvm-svn: 160195

we write into doesn't already exist.

<rdar://problem/11775508>

llvm-svn: 159700

- On iOS, we select the "apcs-gnu" ABI to match
  what libraries expect.

- Literals are now allocated at their preferred
  alignment, eliminating many alignment crashes.

llvm-svn: 158236

(which regularly conflicts with existing symbols
in Objective-C).

llvm-svn: 157758

setting breakpoints.  That's dangerous, since while we are setting a breakpoint,
the target might hit the dyld load notification, and start removing modules from
the list.  This change adds a GetMutex accessor to the ModuleList class, and
uses it whenever we are accessing the target's ModuleList (as returned by GetImages().)

<rdar://problem/11552372>

llvm-svn: 157668

checker functions exist.

llvm-svn: 157652

Objective-C "self," which is not a regular pointer.

llvm-svn: 157214

when stopped in a const method.  Also updated our
testsuite to ensure that JIT is forced in this case.

llvm-svn: 157208

various other syntactic sugar work.  Lambdas do
not due to some problems relocating code containing
lambdas.  Rvalue references work when returned from
expressions, but need more testing.

llvm-svn: 156948

rdar://problem/11419156

llvm-svn: 156627

Fixed the DisassemblerLLVMC disassembler to parse more efficiently instead of parsing opcodes over and over. The InstructionLLVMC class now only reads the opcode in the InstructionLLVMC::Decode function. This can be done very efficiently for ARM and architectures that have fixed opcode sizes. For x64 it still calls the disassembler to get the byte size.

Moved the lldb_private::Instruction::Dump(...) function up into the lldb_private::Instruction class and it now uses the function that gets the mnemonic, operandes and comments so that all disassembly is using the same code.

Added StreamString::FillLastLineToColumn() to allow filling a line up to a column with a character (which is used by the lldb_private::Instruction::Dump(...) function).

Modified the Opcode::GetData() fucntion to "do the right thing" for thumb instructions.

llvm-svn: 156532

in expressions.

llvm-svn: 156514

ones, to its own constant pool.  This reflects the fact
that the LLVM code generators for different targets move
floats to their constant pools under varying conditions,
and the JIT cannot (yet) be relied upon to relocate references to
its constant pool correctly.

llvm-svn: 155660

into FindExternalVisibleDeclsByName.

llvm-svn: 155561

doesn't return a result.  If that expression can't
be run in the current context (for example, if it
uses a function and there is no running process)
then we used to try to destroy the nonexistent
result variable.  We now only destroy the result
variable if we actually made one.

llvm-svn: 155455

interpreter.

llvm-svn: 155360

which incurs large overheads in terms of type
parsing and importing.

llvm-svn: 154885

is non-NULL before asking for its name.

llvm-svn: 154593