Initial merge of some of the iOS 8 / Mac OS X Yosemite specific

lldb support.  I'll be doing more testing & cleanup but I wanted to
get the initial checkin done.

This adds a new SBExpressionOptions::SetLanguage API for selecting a
language of an expression.

I added adds a new SBThread::GetInfoItemByPathString for retriving
information about a thread from that thread's StructuredData.

I added a new StructuredData class for representing
key-value/array/dictionary information (e.g. JSON formatted data).
Helper functions to read JSON and create a StructuredData object,
and to print a StructuredData object in JSON format are included.

A few Cocoa / Cocoa Touch data formatters were updated by Enrico
to track changes in iOS 8 / Yosemite.

Before we query a thread's extended information, the system runtime may 
provide hints to the remote debug stub that it will use to retrieve values
out of runtime structures.  I added a new SystemRuntime method 
AddThreadExtendedInfoPacketHints which allows the SystemRuntime to add 
key-value type data to the initial request that we send to the remote stub.

The thread-format formatter string can now retrieve values out of a thread's
extended info structured data.  The default thread-format string picks up
two of these - thread.info.activity.name and thread.info.trace_messages.

I added a new "jThreadExtendedInfo" packet in debugserver; I will
add documentation to the lldb-gdb-remote.txt doc soon.  It accepts
JSON formatted arguments (most importantly, "thread":threadnum) and
it returns a variety of information regarding the thread to lldb
in JSON format.  This JSON return is scanned into a StructuredData
object that is associated with the thread; UI layers can query the
thread's StructuredData to see if key-values are present, and if
so, show them to the user.  These key-values are likely to be
specific to different targets with some commonality among many
targets.  For instance, many targets will be able to advertise the
pthread_t value for a thread.

I added an initial rough cut of "thread info" command which will print
the information about a thread from the jThreadExtendedInfo result.
I need to do more work to make this format reasonably.

Han Ming added calls into the pmenergy and pmsample libraries if
debugserver is run on Mac OS X Yosemite to get information about the
inferior's power use.

I added support to debugserver for gathering the Genealogy information
about threads, if it exists, and returning it in the jThreadExtendedInfo
JSON result.

llvm-svn: 210874

1 files changed, 8 insertions, 0 deletions

diff --git a/lldb/tools/debugserver/source/MacOSX/MachThreadList.h b/lldb/tools/debugserver/source/MacOSX/MachThreadList.h
index 46bccfee8de..5fac2c4b457 100644
--- a/lldb/tools/debugserver/source/MacOSX/MachThreadList.h
+++ b/lldb/tools/debugserver/source/MacOSX/MachThreadList.h
@@ -15,6 +15,7 @@
 #define __MachThreadList_h__
 
 #include "MachThread.h"
+#include "ThreadInfo.h"
 
 class DNBThreadResumeActions;
 
@@ -40,6 +41,12 @@ public:
     const char *    GetName (nub_thread_t tid);
     nub_state_t     GetState (nub_thread_t tid);
     nub_thread_t    SetCurrentThread (nub_thread_t tid);
+
+    ThreadInfo::QoS GetRequestedQoS (nub_thread_t tid, nub_addr_t tsd, uint64_t dti_qos_class_index);
+    nub_addr_t      GetPThreadT (nub_thread_t tid);
+    nub_addr_t      GetDispatchQueueT (nub_thread_t tid);
+    nub_addr_t      GetTSDAddressForThread (nub_thread_t tid, uint64_t plo_pthread_tsd_base_address_offset, uint64_t plo_pthread_tsd_base_offset, uint64_t plo_pthread_tsd_entry_size);
+
     bool            GetThreadStoppedReason (nub_thread_t tid, struct DNBThreadStopInfo *stop_info) const;
     void            DumpThreadStoppedReason (nub_thread_t tid) const;
     bool            GetIdentifierInfo (nub_thread_t tid, thread_identifier_info_data_t *ident_info);
@@ -73,6 +80,7 @@ protected:
     collection      m_threads;
     mutable PThreadMutex m_threads_mutex;
     MachThreadSP    m_current_thread;
+    bool            m_is_64_bit;
 };
 
 #endif // #ifndef __MachThreadList_h__