Fix llgs to send triple for non-Apple platforms and lldb to interpret correctly.

This change addresses this bug:
http://llvm.org/bugs/show_bug.cgi?id=20755

This change:
* Modifies llgs to send triple instead of cputype and cpusubtype when not on Apple platforms in qProcessInfo.
* Modifies lldb's GDBRemoteCommunicationClient to handle the triple returned from qProcessInfo if given.
  When given, it will prefer to use triple over cputype and cpusubtype.
* Adds gdb-remote protocol tests to verify that cputype and cpusubtype are specified on darwin, and that triple is specified on Linux.

llvm-svn: 216470

1 files changed, 16 insertions, 1 deletions

diff --git a/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp b/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp
index c2b58fd1377..5e4ed7648f9 100644
--- a/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp
+++ b/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp
@@ -2442,6 +2442,11 @@ GDBRemoteCommunicationClient::GetCurrentProcessInfo ()
                     if (sub != 0)
                         ++num_keys_decoded;
                 }
+                else if (name.compare("triple") == 0)
+                {
+                    triple = value;
+                    ++num_keys_decoded;
+                }
                 else if (name.compare("ostype") == 0)
                 {
                     os_name.swap (value);
@@ -2479,7 +2484,17 @@ GDBRemoteCommunicationClient::GetCurrentProcessInfo ()
                 m_curr_pid_is_valid = eLazyBoolYes;
                 m_curr_pid = pid;
             }
-            if (cpu != LLDB_INVALID_CPUTYPE && !os_name.empty() && !vendor_name.empty())
+
+            // Set the ArchSpec from the triple if we have it.
+            if (!triple.empty ())
+            {
+                m_process_arch.SetTriple (triple.c_str ());
+                if (pointer_byte_size)
+                {
+                    assert (pointer_byte_size == m_process_arch.GetAddressByteSize());
+                }
+            }
+            else if (cpu != LLDB_INVALID_CPUTYPE && !os_name.empty() && !vendor_name.empty())
             {
                 m_process_arch.SetArchitecture (eArchTypeMachO, cpu, sub);
                 if (pointer_byte_size)