Import LLDB as of upstream SVN r216948 (git 50f7fe44)

This corresponds with the branchpoint for the 3.5 release.
A number of files not required for the FreeBSD build have been removed.

Sponsored by:	DARPA, AFRL

1 files changed, 43 insertions, 23 deletions

diff --git a/source/Plugins/Process/POSIX/ProcessPOSIX.cpp b/source/Plugins/Process/POSIX/ProcessPOSIX.cpp
index 6239462..f340631 100644
--- a/source/Plugins/Process/POSIX/ProcessPOSIX.cpp
+++ b/source/Plugins/Process/POSIX/ProcessPOSIX.cpp
@@ -70,8 +70,8 @@ ProcessPOSIX::Initialize()
 //------------------------------------------------------------------------------
 // Constructors and destructors.
 
-ProcessPOSIX::ProcessPOSIX(Target& target, Listener &listener)
-    : Process(target, listener),
+ProcessPOSIX::ProcessPOSIX(Target& target, Listener &listener, UnixSignalsSP &unix_signals_sp)
+    : Process(target, listener, unix_signals_sp),
       m_byte_order(lldb::endian::InlHostByteOrder()),
       m_monitor(NULL),
       m_module(NULL),
@@ -176,23 +176,23 @@ ProcessPOSIX::WillLaunch(Module* module)
 }
 
 const char *
-ProcessPOSIX::GetFilePath(
-    const lldb_private::ProcessLaunchInfo::FileAction *file_action,
-    const char *default_path)
+ProcessPOSIX::GetFilePath(const lldb_private::FileAction *file_action, const char *default_path)
 {
     const char *pts_name = "/dev/pts/";
     const char *path = NULL;
 
     if (file_action)
     {
-        if (file_action->GetAction () == ProcessLaunchInfo::FileAction::eFileActionOpen)
+        if (file_action->GetAction() == FileAction::eFileActionOpen)
+        {
             path = file_action->GetPath();
             // By default the stdio paths passed in will be pseudo-terminal
             // (/dev/pts). If so, convert to using a different default path
             // instead to redirect I/O to the debugger console. This should
             //  also handle user overrides to /dev/null or a different file.
-            if (::strncmp(path, pts_name, ::strlen(pts_name)) == 0)
+            if (!path || ::strncmp(path, pts_name, ::strlen(pts_name)) == 0)
                 path = default_path;
+        }
     }
 
     return path;
@@ -217,7 +217,7 @@ ProcessPOSIX::DoLaunch (Module *module,
 
     SetPrivateState(eStateLaunching);
 
-    const lldb_private::ProcessLaunchInfo::FileAction *file_action;
+    const lldb_private::FileAction *file_action;
 
     // Default of NULL will mean to use existing open file descriptors
     const char *stdin_path = NULL;
@@ -241,6 +241,7 @@ ProcessPOSIX::DoLaunch (Module *module,
                                     stdout_path, 
                                     stderr_path,
                                     working_dir,
+                                    launch_info,
                                     error);
 
     m_module = module;
@@ -335,11 +336,9 @@ ProcessPOSIX::DoDestroy()
 
     if (!HasExited())
     {
-        // Drive the exit event to completion (do not keep the inferior in
-        // limbo).
+        assert(m_monitor);
         m_exit_now = true;
-
-        if ((m_monitor == NULL || kill(m_monitor->GetPID(), SIGKILL)) && error.Success())
+        if (!m_monitor->Kill())
         {
             error.SetErrorToErrno();
             return error;
@@ -379,6 +378,8 @@ ProcessPOSIX::DoDidExec()
 void
 ProcessPOSIX::SendMessage(const ProcessMessage &message)
 {
+    Log *log (ProcessPOSIXLog::GetLogIfAllCategoriesSet (POSIX_LOG_PROCESS));
+
     Mutex::Locker lock(m_message_mutex);
 
     Mutex::Locker thread_lock(m_thread_list.GetMutex());
@@ -420,8 +421,14 @@ ProcessPOSIX::SendMessage(const ProcessMessage &message)
         break;
 
     case ProcessMessage::eExitMessage:
-        assert(thread);
-        thread->SetState(eStateExited);
+        if (thread != nullptr)
+            thread->SetState(eStateExited);
+        else
+        {
+            if (log)
+                log->Warning ("ProcessPOSIX::%s eExitMessage for TID %" PRIu64 " failed to find a thread to mark as eStateExited, ignoring", __FUNCTION__, message.GetTID ());
+        }
+
         // FIXME: I'm not sure we need to do this.
         if (message.GetTID() == GetID())
         {
@@ -635,20 +642,26 @@ ProcessPOSIX::DoDeallocateMemory(lldb::addr_t addr)
 size_t
 ProcessPOSIX::GetSoftwareBreakpointTrapOpcode(BreakpointSite* bp_site)
 {
+    static const uint8_t g_aarch64_opcode[] = { 0x00, 0x00, 0x20, 0xD4 };
     static const uint8_t g_i386_opcode[] = { 0xCC };
 
     ArchSpec arch = GetTarget().GetArchitecture();
     const uint8_t *opcode = NULL;
     size_t opcode_size = 0;
 
-    switch (arch.GetCore())
+    switch (arch.GetMachine())
     {
     default:
         assert(false && "CPU type not supported!");
         break;
 
-    case ArchSpec::eCore_x86_32_i386:
-    case ArchSpec::eCore_x86_64_x86_64:
+    case llvm::Triple::aarch64:
+        opcode = g_aarch64_opcode;
+        opcode_size = sizeof(g_aarch64_opcode);
+        break;
+
+    case llvm::Triple::x86:
+    case llvm::Triple::x86_64:
         opcode = g_i386_opcode;
         opcode_size = sizeof(g_i386_opcode);
         break;
@@ -865,12 +878,6 @@ ProcessPOSIX::PutSTDIN(const char *buf, size_t len, Error &error)
     return status;
 }
 
-UnixSignals &
-ProcessPOSIX::GetUnixSignals()
-{
-    return m_signals;
-}
-
 //------------------------------------------------------------------------------
 // Utility functions.
 
@@ -926,3 +933,16 @@ ProcessPOSIX::IsAThreadRunning()
     }
     return is_running;
 }
+
+const DataBufferSP
+ProcessPOSIX::GetAuxvData ()
+{
+    // If we're the local platform, we can ask the host for auxv data.
+    PlatformSP platform_sp = m_target.GetPlatform ();
+    if (platform_sp && platform_sp->IsHost ())
+        return lldb_private::Host::GetAuxvData(this);
+
+    // Somewhat unexpected - the process is not running locally or we don't have a platform.
+    assert (false && "no platform or not the host - how did we get here with ProcessPOSIX?");
+    return DataBufferSP ();
+}