Reimplemented the code that backed the "settings" in lldb. There were many issues with the previous implementation:
- no setting auto completion
- very manual and error prone way of getting/setting variables
- tons of code duplication
- useless instance names for processes, threads

Now settings can easily be defined like option values. The new settings makes use of the "OptionValue" classes so we can re-use the option value code that we use to set settings in command options. No more instances, just "does the right thing".

llvm-svn: 162366

<rdar://problem/11703715>

llvm-svn: 161611

<rdar://problem/10449092> Adding a new uppercase hex format specifier. This commit also changes the short names for formats so that uppercase hex can be 'X', which was previously assigned to hex float. hex float now has no short name.

llvm-svn: 161606

the expression returns nothing.  There is now a
setting, "notify-void."  When the user enables
that setting, lldb prints (void) if an expression's
result is void.  Otherwise, lldb is silent.

<rdar://problem/11225150>

llvm-svn: 161600

llvm-svn: 161592

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

<rdar://problem/11930775>

llvm-svn: 161559

Fixed the delay that was happening when quitting lldb from the command line. We weren't initializing the command pipes when constructing a ConnectionFileDescriptor with a file descriptor.

llvm-svn: 161533

suppress all non-error output from the "expression"
command.

<rdar://problem/11225150>

llvm-svn: 161502

<rdar://problem/11975483> Removing user-visible references to 'dict' as a parameter name for Python summary-generating functions since it is a Python keyword.

llvm-svn: 161467

Added the ability to set the architecture from two numbers that represent the mach-o CPU type and subtype in the format "%u-%u" or "%u.%u". This can of course be followed by vendor and OS.

llvm-svn: 161465

llvm-svn: 161420

Fixing an issue where ValueObject::GetPointeeData() would not work correctly for file addresses when fetching items other than the 0-th

llvm-svn: 161384

require an AddressClass, which is useless at this
point since it already knows the distinction between
32-bit Thumb opcodes and 32-bit ARM opcodes.

llvm-svn: 161382

Fixed an error in the thumb opcode encoding. We need the 32 bit thumb instructions to be encoded as a 32 bit value for the EmulateARM code.

llvm-svn: 161381

llvm-svn: 161360

Use the built in demangler for Apple builds for now which has needed demangling fixes, and make the cxa_demangle.cpp use rtti in the Xcode project settings as it requires it be enabled.

llvm-svn: 161323

Pull in cxa_demangle.cpp/.h from llvm's libcxxabi project.  Change the namespace to lldb_cxxabiv1 for the time being.
Mangled.cpp is not wired in to call it yet.

llvm-svn: 161293

<rdar://problem/11846023> Fixing a bug where malformed DWARF could lead to an endless recursion with synthetic children

llvm-svn: 161185

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

Cleaned up the lldb_private::Mangled class to get rid of the tokenizing code that has bit rotted and isn't being used. Also cleaned up the API to the "lldb_private::Mangled" to always take "const ConstString &" arguments instead of both "const ConstString &" and "const char *". 

llvm-svn: 160466

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

someone has set our file descriptor to -1 and crash in FD_SET...
<rdar://problem/11653966>

llvm-svn: 160336

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

llvm-svn: 160211

llvm-svn: 160181

llvm-svn: 160180

Fixed issues that could happen when the UUID doesn't change in a binary and old stale debug info could end up being used.

llvm-svn: 160145

return sections that don't have valid modules.

<rdar://problem/11605824>

llvm-svn: 160141

Fixed a case where the python interpreter could end up holding onto a previous lldb::SBProcess (probably in lldb.process) when run under Xcode. Prior to this fix, the lldb::SBProcess held onto a shared pointer to a lldb_private::Process. This in turn could cause the process to still have a thread list with stack frames. The stack frames would have module shared pointers in the lldb_private::SymbolContext objects. 

We also had issues with things staying in the shared module list too long when we found things by UUID (we didn't remove the out of date ModuleSP from the global module cache).

Now all of this is fixed and everything goes away between runs.

llvm-svn: 160140

Add a command channel to wait on along with the file descriptor the ConnectionFileDescriptor class is managing, so we can always pop ourselves out of our select call regardless of how well behaved the channel we are talking to is.

<rdar://problem/11448282>

llvm-svn: 160100

Modifying the "address" format, which prints a pointer and a description of what it points to, to detect when the deref of that pointer points to something valid. So if you have:

    % cat sp.cpp 
    #include <tr1/memory>

    class A
    {
    public:
        A (): m_i (12) {}
        virtual ~A() {}
    private:
        int m_i;
    };

    int main (int argc, char const *argv[], char const *envp[])
    {
        A *a_pointers[2] = { NULL, NULL };
        A a1;
        A a2;
        a_pointers[0] = &a1;
        a_pointers[1] = &a2;
        return 0;
    }


And you stop at the "return 0", you can now read memory using the "address" format and see:

(lldb) memory read --format address `&a_pointers`
0x7fff5fbff870: 0x00007fff5fbff860 -> 0x00000001000010b0 vtable for A + 16
0x7fff5fbff878: 0x00007fff5fbff850 -> 0x00000001000010b0 vtable for A + 16
0x7fff5fbff880: 0x00007fff5fbff8d0
0x7fff5fbff888: 0x00007fff5fbff8c0
0x7fff5fbff890: 0x0000000000000001
0x7fff5fbff898: 0x36d54c275add2294
0x7fff5fbff8a0: 0x00007fff5fbff8b0
0x7fff5fbff8a8: 0x0000000100000bb4 a.out`start + 52

Note the extra dereference that was applied to 0x00007fff5fbff860 and 0x00007fff5fbff850 so we can see that these are "A" classes.

llvm-svn: 160085

llvm-svn: 160079

The "stop-line-count-after" and "stop-line-count-before" settings are broken. This fixes them.

llvm-svn: 160071

Fixed a crasher where the section load list was not thread safe.

llvm-svn: 159884

Modified the heap.py to be able to correctly indentify the exact ivar for the "ptr_refs" command no matter how deep the ivar is in a class hierarchy. Also fixed the ability for the heap command to symbolicate the stack backtrace when MallocStackLogging is set in the environment and the "--stack" option was specified.

llvm-svn: 159883

llvm-svn: 159844

llvm-svn: 159389

llvm-svn: 159285

a cache of address ranges for child sections,
accelerating lookups.  This cache is built during
object file loading, and is then set in stone once
the object files are done loading.  (In Debug builds,
we ensure that the cache is never invalidated after
that.)

llvm-svn: 158188

The output of 'register read' should be prettier.
Modify RegisterValue::Dump() to take an additional parameter:

    uint32_t reg_name_right_align_at

which defaults to 0 (i.e., no alignment at all).  Update the 'register read' command impl to pass 8
as the alignment to RegisterValue::Dump() method.  If more sophisticated scheme is desired, we will
need to introduce an additional command option to 'register read' later on.

llvm-svn: 158039