Add lldb-gdbserver support for Linux x86_64.
This change brings in lldb-gdbserver (llgs) specifically for Linux x86_64.
(More architectures coming soon).
Not every debugserver option is covered yet. Currently
the lldb-gdbserver command line can start unattached,
start attached to a pid (process-name attach not supported yet),
or accept lldb attaching and launching a process or connecting
by process id.
The history of this large change can be found here:
https://github.com/tfiala/lldb/tree/dev-tfiala-native-protocol-linux-x86_64
Until mid/late April, I was not sharing the work and continued
to rebase it off of head (developed via id tfiala@google.com). I switched over to
user todd.fiala@gmail.com in the middle, and once I went to github, I did
merges rather than rebasing so I could share with others.
llvm-svn: 212069
diff --git a/lldb/source/Host/common/NativeBreakpoint.cpp b/lldb/source/Host/common/NativeBreakpoint.cpp
new file mode 100644
index 0000000..284d7d1
--- /dev/null
+++ b/lldb/source/Host/common/NativeBreakpoint.cpp
@@ -0,0 +1,116 @@
+//===-- NativeBreakpoint.cpp ------------------------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "NativeBreakpoint.h"
+
+#include "lldb/lldb-defines.h"
+#include "lldb/Core/Error.h"
+#include "lldb/Core/Log.h"
+
+using namespace lldb_private;
+
+NativeBreakpoint::NativeBreakpoint (lldb::addr_t addr) :
+ m_addr (addr),
+ m_ref_count (1),
+ m_enabled (true)
+{
+ assert (addr != LLDB_INVALID_ADDRESS && "breakpoint set for invalid address");
+}
+
+NativeBreakpoint::~NativeBreakpoint ()
+{
+}
+
+void
+NativeBreakpoint::AddRef ()
+{
+ ++m_ref_count;
+
+ Log *log (GetLogIfAnyCategoriesSet (LIBLLDB_LOG_BREAKPOINTS));
+ if (log)
+ log->Printf ("NativeBreakpoint::%s addr = 0x%" PRIx64 " bumped up, new ref count %" PRIu32, __FUNCTION__, m_addr, m_ref_count);
+}
+
+int32_t
+NativeBreakpoint::DecRef ()
+{
+ --m_ref_count;
+
+ Log *log (GetLogIfAnyCategoriesSet (LIBLLDB_LOG_BREAKPOINTS));
+ if (log)
+ log->Printf ("NativeBreakpoint::%s addr = 0x%" PRIx64 " ref count decremented, new ref count %" PRIu32, __FUNCTION__, m_addr, m_ref_count);
+
+ return m_ref_count;
+}
+
+Error
+NativeBreakpoint::Enable ()
+{
+ Log *log (GetLogIfAnyCategoriesSet (LIBLLDB_LOG_BREAKPOINTS));
+
+ if (m_enabled)
+ {
+ // We're already enabled. Just log and exit.
+ if (log)
+ log->Printf ("NativeBreakpoint::%s addr = 0x%" PRIx64 " already enabled, ignoring.", __FUNCTION__, m_addr);
+ return Error ();
+ }
+
+ // Log and enable.
+ if (log)
+ log->Printf ("NativeBreakpoint::%s addr = 0x%" PRIx64 " enabling...", __FUNCTION__, m_addr);
+
+ Error error = DoEnable ();
+ if (error.Success ())
+ {
+ m_enabled = true;
+ if (log)
+ log->Printf ("NativeBreakpoint::%s addr = 0x%" PRIx64 " enable SUCCESS.", __FUNCTION__, m_addr);
+ }
+ else
+ {
+ if (log)
+ log->Printf ("NativeBreakpoint::%s addr = 0x%" PRIx64 " enable FAIL: %s", __FUNCTION__, m_addr, error.AsCString ());
+ }
+
+ return error;
+}
+
+Error
+NativeBreakpoint::Disable ()
+{
+ Log *log (GetLogIfAnyCategoriesSet (LIBLLDB_LOG_BREAKPOINTS));
+
+ if (!m_enabled)
+ {
+ // We're already disabled. Just log and exit.
+ if (log)
+ log->Printf ("NativeBreakpoint::%s addr = 0x%" PRIx64 " already disabled, ignoring.", __FUNCTION__, m_addr);
+ return Error ();
+ }
+
+ // Log and disable.
+ if (log)
+ log->Printf ("NativeBreakpoint::%s addr = 0x%" PRIx64 " disabling...", __FUNCTION__, m_addr);
+
+ Error error = DoDisable ();
+ if (error.Success ())
+ {
+ m_enabled = false;
+ if (log)
+ log->Printf ("NativeBreakpoint::%s addr = 0x%" PRIx64 " disable SUCCESS.", __FUNCTION__, m_addr);
+ }
+ else
+ {
+ if (log)
+ log->Printf ("NativeBreakpoint::%s addr = 0x%" PRIx64 " disable FAIL: %s", __FUNCTION__, m_addr, error.AsCString ());
+ }
+
+ return error;
+}