Merge branch 'master' into new-py2llvm

.travis/get-toolchain.sh

@@ -1,8 +1,7 @@
 #!/bin/sh
 
-packages="https://people.phys.ethz.ch/~robertjo/artiq-dev/or1k-gcc_20141105-1_amd64.deb
+packages="http://us.archive.ubuntu.com/ubuntu/pool/universe/i/iverilog/iverilog_0.9.7-1_amd64.deb"
-https://people.phys.ethz.ch/~robertjo/artiq-dev/or1k-binutils_20141105-1_amd64.deb
+archives="http://fehu.whitequark.org/files/binutils-or1k.tbz2 http://fehu.whitequark.org/files/llvm-or1k.tbz2"
-http://us.archive.ubuntu.com/ubuntu/pool/universe/i/iverilog/iverilog_0.9.7-1_amd64.deb"
 
 mkdir -p packages
 
@@ -13,12 +12,18 @@ do
 	dpkg -x $pkg_name packages
 done
 
-export PATH=$PWD/packages/usr/local/bin:$PWD/packages/usr/bin:$PATH
+for a in $archives
+do
+  wget $a
+  (cd packages && tar xvf ../$(basename $a))
+done
+
+export PATH=$PWD/packages/usr/local/llvm-or1k/bin:$PWD/packages/usr/local/bin:$PWD/packages/usr/bin:$PATH
 export LD_LIBRARY_PATH=$PWD/packages/usr/lib/x86_64-linux-gnu:$PWD/packages/usr/local/x86_64-unknown-linux-gnu/or1k-elf/lib:$LD_LIBRARY_PATH
 
-echo -e "export LD_LIBRARY_PATH=$LD_LIBRARY_PATH" >> $HOME/.mlabs/build_settings.sh
+echo "export LD_LIBRARY_PATH=$LD_LIBRARY_PATH" >> $HOME/.mlabs/build_settings.sh
+echo "export PATH=$PWD/packages/usr/local/llvm-or1k/bin:$PATH" >> $HOME/.mlabs/build_settings.sh
 
-or1k-elf-as --version
+or1k-linux-as --version
-or1k-elf-gcc --version
+llc --version
 clang --version
-llvm-as --version || true

artiq/frontend/artiq_gui.py

@@ -18,6 +18,7 @@ from artiq.gui.results import ResultsDock
 from artiq.gui.parameters import ParametersDock
 from artiq.gui.schedule import ScheduleDock
 from artiq.gui.log import LogDock
+from artiq.gui.console import ConsoleDock
 
 
 data_dir = os.path.join(os.path.abspath(os.path.dirname(__file__)),
@@ -99,7 +100,7 @@ def main():
     area.addDock(d_params, "above", d_results)
     area.addDock(d_explorer, "above", d_params)
 
-    d_schedule = ScheduleDock(schedule_ctl)
+    d_schedule = ScheduleDock(status_bar, schedule_ctl)
     loop.run_until_complete(d_schedule.sub_connect(
         args.server, args.port_notify))
     atexit.register(lambda: loop.run_until_complete(d_schedule.sub_close()))
@@ -109,7 +110,19 @@ def main():
         args.server, args.port_notify))
     atexit.register(lambda: loop.run_until_complete(d_log.sub_close()))
 
-    area.addDock(d_log, "bottom")
+    pdb = AsyncioClient()
+    loop.run_until_complete(pdb.connect_rpc(
+        args.server, args.port_control, "master_pdb"))
+    atexit.register(lambda: pdb.close_rpc())
+    def _get_parameter(k, v):
+        asyncio.async(pdb.set(k, v))
+    d_console = ConsoleDock(
+        d_params.get_parameter,
+        _get_parameter,
+        d_results.get_result)
+
+    area.addDock(d_console, "bottom")
+    area.addDock(d_log, "above", d_console)
     area.addDock(d_schedule, "above", d_log)
 
     win.show()

artiq/frontend/artiq_run.py

@@ -26,7 +26,7 @@ class ELFRunner(EnvExperiment):
     def run(self):
         with open(self.file, "rb") as f:
             self.core.comm.load(f.read())
-        self.core.comm.run("run", False)
+        self.core.comm.run("run")
         self.core.comm.serve(dict(), dict())
 
 

artiq/gui/console.py

@@ -0,0 +1,23 @@
+from pyqtgraph import console, dockarea
+
+
+_help = """
+This is an interactive Python console.
+
+The following functions are available:
+    get_parameter(key)
+    set_parameter(key, value) [asynchronous update]
+    get_result(key) [real-time results only]
+
+"""
+
+class ConsoleDock(dockarea.Dock):
+    def __init__(self, get_parameter, set_parameter, get_result):
+        dockarea.Dock.__init__(self, "Console", size=(1000, 300))
+        ns = {
+            "get_parameter": get_parameter,
+            "set_parameter": set_parameter,
+            "get_result": get_result
+        }
+        c = console.ConsoleWidget(namespace=ns, text=_help)
+        self.addWidget(c)

artiq/gui/explorer.py

@@ -7,7 +7,7 @@ from pyqtgraph import LayoutWidget
 
 from artiq.protocols.sync_struct import Subscriber
 from artiq.protocols import pyon
-from artiq.gui.tools import DictSyncModel
+from artiq.gui.tools import DictSyncModel, force_spinbox_value
 from artiq.gui.scan import ScanController
 
 
@@ -73,7 +73,7 @@ class _NumberEntry(QtGui.QDoubleSpinBox):
         if procdesc["unit"]:
             self.setSuffix(" " + procdesc["unit"])
         if "default" in procdesc:
-            self.setValue(procdesc["default"])
+            force_spinbox_value(self, procdesc["default"])
 
     def get_argument_value(self):
         return self.value()

artiq/gui/log.py

@@ -12,6 +12,15 @@ class _LogModel(ListSyncModel):
         ListSyncModel.__init__(self,
             ["RID", "Message"],
             parent, init)
+        self.fixed_font = QtGui.QFont()
+        self.fixed_font.setFamily("Monospace")
+
+    def data(self, index, role):
+        if (role == QtCore.Qt.FontRole and index.isValid()
+                and index.column() == 1):
+            return self.fixed_font
+        else:
+            return ListSyncModel.data(self, index, role)
 
     def convert(self, v, column):
         return v[column]

artiq/gui/parameters.py

@@ -34,7 +34,7 @@ class ParametersDock(dockarea.Dock):
 
         self.search = QtGui.QLineEdit()
         self.search.setPlaceholderText("search...")
-        self.search.editingFinished.connect(self.search_parameters)
+        self.search.editingFinished.connect(self._search_parameters)
         grid.addWidget(self.search, 0, 0)
 
         self.table = QtGui.QTableView()
@@ -43,7 +43,10 @@ class ParametersDock(dockarea.Dock):
             QtGui.QHeaderView.ResizeToContents)
         grid.addWidget(self.table, 1, 0)
 
-    def search_parameters(self):
+    def get_parameter(self, key):
+        return self.table_model.backing_store[key]
+
+    def _search_parameters(self):
         model = self.table.model()
         parentIndex = model.index(0, 0)
         numRows = model.rowCount(parentIndex)
@@ -66,6 +69,6 @@ class ParametersDock(dockarea.Dock):
         yield from self.subscriber.close()
 
     def init_parameters_model(self, init):
-        table_model = ParametersModel(self.table, init)
+        self.table_model = ParametersModel(self.table, init)
-        self.table.setModel(table_model)
+        self.table.setModel(self.table_model)
-        return table_model
+        return self.table_model

artiq/gui/results.py

@@ -55,6 +55,9 @@ class ResultsDock(dockarea.Dock):
 
         self.displays = dict()
 
+    def get_result(self, key):
+        return self.table_model.backing_store[key]
+
     @asyncio.coroutine
     def sub_connect(self, host, port):
         self.subscriber = Subscriber("rt_results", self.init_results_model,

artiq/gui/scan.py

@@ -1,6 +1,8 @@
 from quamash import QtGui
 from pyqtgraph import LayoutWidget
 
+from artiq.gui.tools import force_spinbox_value
+
 
 class _Range(LayoutWidget):
     def __init__(self, global_min, global_max, global_step, unit):
@@ -33,9 +35,9 @@ class _Range(LayoutWidget):
         self.addWidget(self.npoints, 0, 5)
 
     def set_values(self, min, max, npoints):
-        self.min.setValue(min)
+        force_spinbox_value(self.min, min)
-        self.max.setValue(max)
+        force_spinbox_value(self.max, max)
-        self.npoints.setValue(npoints)
+        force_spinbox_value(self.npoints, npoints)
 
     def get_values(self):
         return {
@@ -97,13 +99,13 @@ class ScanController(LayoutWidget):
             d = procdesc["default"]
             if d["ty"] == "NoScan":
                 self.noscan.setChecked(True)
-                self.v_noscan.setValue(d["value"])
+                force_spinbox_value(self.v_noscan, d["value"])
             elif d["ty"] == "LinearScan":
                 self.linear.setChecked(True)
-                self.v_linear.set_values(d["min"], d["max"], d["step"])
+                self.v_linear.set_values(d["min"], d["max"], d["npoints"])
             elif d["ty"] == "RandomScan":
                 self.random.setChecked(True)
-                self.v_random.set_values(d["min"], d["max"], d["step"])
+                self.v_random.set_values(d["min"], d["max"], d["npoints"])
             elif d["ty"] == "ExplicitScan":
                 self.explicit.setChecked(True)
                 self.v_explicit.insert(" ".join(

artiq/gui/schedule.py

@@ -46,9 +46,10 @@ class _ScheduleModel(DictSyncModel):
 
 
 class ScheduleDock(dockarea.Dock):
-    def __init__(self, schedule_ctl):
+    def __init__(self, status_bar, schedule_ctl):
         dockarea.Dock.__init__(self, "Schedule", size=(1000, 300))
 
+        self.status_bar = status_bar
         self.schedule_ctl = schedule_ctl
 
         self.table = QtGui.QTableView()
@@ -86,4 +87,5 @@ class ScheduleDock(dockarea.Dock):
         if idx:
             row = idx[0].row()
             rid = self.table_model.row_to_key[row]
+            self.status_bar.showMessage("Deleted RID {}".format(rid))
             asyncio.async(self.delete(rid))

artiq/gui/tools.py

@@ -1,10 +1,23 @@
 from quamash import QtCore
 
 
+def force_spinbox_value(spinbox, value):
+    if spinbox.minimum() > value:
+        spinbox.setMinimum(value)
+    if spinbox.maximum() < value:
+        spinbox.setMaximum(value)
+    spinbox.setValue(value)
+
+
 def short_format(v):
     t = type(v)
     if t is int or t is float:
         return str(v)
+    elif t is str:
+        if len(v) < 15:
+            return "\"" + v + "\""
+        else:
+            return "\"" + v[:12] + "\"..."
     else:
         r = t.__name__
         if t is list or t is dict or t is set:

artiq/protocols/pc_rpc.py

@@ -9,7 +9,6 @@ and modifications to mutable types are not written back. For example, if the
 client passes a list as a parameter of an RPC method, and that method
 ``append()s`` an element to the list, the element is not appended to the
 client's list.
-
 """
 
 import socket
@@ -29,17 +28,13 @@ logger = logging.getLogger(__name__)
 
 class RemoteError(Exception):
     """Raised when a RPC failed or raised an exception on the remote (server)
-    side.
+    side."""
-
-    """
     pass
 
 
 class IncompatibleServer(Exception):
     """Raised by the client when attempting to connect to a server that does
-    not have the expected target.
+    not have the expected target."""
-
-    """
     pass
 
 
@@ -74,7 +69,6 @@ class Client:
         Use ``None`` to skip selecting a target. The list of targets can then
         be retrieved using ``get_rpc_id`` and then one can be selected later
         using ``select_rpc_target``.
-
     """
     def __init__(self, host, port, target_name):
         self.__socket = socket.create_connection((host, port))
@@ -93,25 +87,20 @@ class Client:
 
     def select_rpc_target(self, target_name):
         """Selects a RPC target by name. This function should be called
-        exactly once if the object was created with ``target_name=None``.
+        exactly once if the object was created with ``target_name=None``."""
-
-        """
         if target_name not in self.__target_names:
             raise IncompatibleServer
         self.__socket.sendall((target_name + "\n").encode())
 
     def get_rpc_id(self):
         """Returns a tuple (target_names, id_parameters) containing the
-        identification information of the server.
+        identification information of the server."""
-
-        """
         return (self.__target_names, self.__id_parameters)
 
     def close_rpc(self):
         """Closes the connection to the RPC server.
 
         No further method calls should be done after this method is called.
-
         """
         self.__socket.close()
 
@@ -159,6 +148,8 @@ class AsyncioClient:
 
     All RPC methods are coroutines.
 
+    Concurrent access from different asyncio tasks is supported; all calls
+    use a single lock.
     """
     def __init__(self):
         self.__lock = asyncio.Lock()
@@ -171,9 +162,7 @@ class AsyncioClient:
     def connect_rpc(self, host, port, target_name):
         """Connects to the server. This cannot be done in __init__ because
         this method is a coroutine. See ``Client`` for a description of the
-        parameters.
+        parameters."""
-
-        """
         self.__reader, self.__writer = \
             yield from asyncio.open_connection(host, port)
         try:
@@ -190,7 +179,6 @@ class AsyncioClient:
     def select_rpc_target(self, target_name):
         """Selects a RPC target by name. This function should be called
         exactly once if the connection was created with ``target_name=None``.
-
         """
         if target_name not in self.__target_names:
             raise IncompatibleServer
@@ -198,16 +186,13 @@ class AsyncioClient:
 
     def get_rpc_id(self):
         """Returns a tuple (target_names, id_parameters) containing the
-        identification information of the server.
+        identification information of the server."""
-
-        """
         return (self.__target_names, self.__id_parameters)
 
     def close_rpc(self):
         """Closes the connection to the RPC server.
 
         No further method calls should be done after this method is called.
-
         """
         self.__writer.close()
         self.__reader = None
@@ -261,7 +246,6 @@ class BestEffortClient:
         connection attempt at object initialization.
     :param retry: Amount of time to wait between retries when reconnecting
         in the background.
-
     """
     def __init__(self, host, port, target_name,
                  firstcon_timeout=0.5, retry=5.0):
@@ -322,7 +306,6 @@ class BestEffortClient:
         """Closes the connection to the RPC server.
 
         No further method calls should be done after this method is called.
-
         """
         if self.__conretry_thread is None:
             if self.__socket is not None:
@@ -415,7 +398,6 @@ class Server(_AsyncioServer):
         Clients select one of these objects using its name upon connection.
     :param id_parameters: An optional human-readable string giving more
         information about the parameters of the server.
-
     """
     def __init__(self, targets, id_parameters=None):
         _AsyncioServer.__init__(self)
@@ -485,7 +467,6 @@ def simple_server_loop(targets, host, port, id_parameters=None):
     """Runs a server until an exception is raised (e.g. the user hits Ctrl-C).
 
     See ``Server`` for a description of the parameters.
-
     """
     loop = asyncio.get_event_loop()
     try:

artiq/protocols/pyon.py

@@ -39,6 +39,16 @@ _encode_map = {
     numpy.ndarray: "nparray"
 }
 
+_numpy_scalar = {
+    "int8", "int16", "int32", "int64", "uint8", "uint16", "uint32", "uint64",
+    "float16", "float32", "float64"
+}
+
+
+for _t in _numpy_scalar:
+    _encode_map[getattr(numpy, _t)] = "npscalar"
+
+
 class _Encoder:
     def __init__(self, pretty):
         self.pretty = pretty
@@ -114,6 +124,13 @@ class _Encoder:
         r += ")"
         return r
 
+    def encode_npscalar(self, x):
+        r = "npscalar("
+        r += "\"" + type(x).__name__ + "\", "
+        r += encode(base64.b64encode(x).decode())
+        r += ")"
+        return r
+
     def encode(self, x):
         return getattr(self, "encode_" + _encode_map[type(x)])(x)
 
@@ -131,6 +148,10 @@ def _nparray(shape, dtype, data):
     return a.reshape(shape)
 
 
+def _npscalar(ty, data):
+    return numpy.frombuffer(base64.b64decode(data), dtype=ty)[0]
+
+
 _eval_dict = {
     "__builtins__": None,
 
@@ -139,7 +160,8 @@ _eval_dict = {
     "true": True,
 
     "Fraction": Fraction,
-    "nparray": _nparray
+    "nparray": _nparray,
+    "npscalar": _npscalar
 }
 
 def decode(s):

artiq/test/serialization.py

@@ -4,14 +4,15 @@ from fractions import Fraction
 
 import numpy as np
 
-from artiq.language.units import *
 from artiq.protocols import pyon
 
 
 _pyon_test_object = {
     (1, 2): [(3, 4.2), (2, )],
     Fraction(3, 4): np.linspace(5, 10, 1),
-    "frequency": 10*GHz
+    "a": np.int8(9), "b": np.int16(-98), "c": np.int32(42), "d": np.int64(-5),
+    "e": np.uint8(8), "f": np.uint16(5), "g": np.uint32(4), "h": np.uint64(9),
+    "x": np.float16(9.0), "y": np.float32(9.0), "z": np.float64(9.0),
 }
 
 

doc/manual/conf.py

@@ -22,7 +22,9 @@ from unittest.mock import MagicMock
 class Mock(MagicMock):
     @classmethod
     def __getattr__(cls, name):
-            return Mock()
+        if name == "_mock_methods":
+            return None
+        return Mock()
 
 
 mock_modules = ["artiq.gui.moninj", "quamash", "pyqtgraph", "matplotlib"]

doc/manual/installing.rst

@@ -70,7 +70,52 @@ Next step (for KC705) is to flash MAC and IP addresses to the board:
 Installing from source
 ----------------------
 
-You can skip this if you already installed from conda.
+You can skip the first two steps if you already installed from conda.
+
+Preparing the build environment for the core device
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+These steps are required to generate code that can run on the core
+device. They are necessary both for building the MiSoC BIOS
+and the ARTIQ kernels.
+
+* Create a development directory: ::
+
+        $ mkdir ~/artiq-dev
+
+* Install OpenRISC binutils (or1k-linux-...): ::
+
+        $ cd ~/artiq-dev
+        $ wget https://ftp.gnu.org/gnu/binutils/binutils-2.25.1.tar.bz2
+        $ tar xvf binutils-2.25.1.tar.bz2
+        $ rm binutils-2.25.1.tar.bz2
+
+        $ mkdir binutils-2.25.1/build
+        $ cd binutils-2.25.1/build
+        $ ../configure --target=or1k-linux --prefix=/usr/local
+        $ make -j4
+        $ sudo make install
+
+.. note::
+    We're using an ``or1k-linux`` target because it is necessary to enable
+    shared library support in ``ld``, not because Linux is involved.
+
+* Install LLVM and Clang: ::
+
+        $ cd ~/artiq-dev
+        $ git clone https://github.com/openrisc/llvm-or1k
+        $ cd llvm-or1k/tools
+        $ git clone https://github.com/openrisc/clang-or1k clang
+        $ cd ..
+
+        $ mkdir build
+        $ cd build
+        $ cmake .. -DCMAKE_INSTALL_PREFIX=/usr/local/llvm-or1k -DLLVM_TARGETS_TO_BUILD="OR1K;X86" -DCMAKE_BUILD_TYPE=Rel -DLLVM_ENABLE_ASSERTIONS=ON
+        $ make -j4
+        $ sudo make install
+
+.. note::
+    Compilation of LLVM can take more than 30 min on some machines.
 
 Preparing the core device FPGA board
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -85,10 +130,6 @@ These steps are required to generate bitstream (``.bit``) files, build the MiSoC
 
     * During the Xilinx toolchain installation, uncheck ``Install cable drivers`` (they are not required as we use better and open source alternatives).
 
-* Create a development directory: ::
-
-        $ mkdir ~/artiq-dev
-
 * Install Migen: ::
 
         $ cd ~/artiq-dev
@@ -99,31 +140,6 @@ These steps are required to generate bitstream (``.bit``) files, build the MiSoC
 .. note::
     The options ``develop`` and ``--user`` are for setup.py to install Migen in ``~/.local/lib/python3.4``.
 
-* Install OpenRISC GCC/binutils toolchain (or1k-elf-...): ::
-
-        $ cd ~/artiq-dev
-        $ git clone https://github.com/openrisc/or1k-src
-        $ cd or1k-src
-        $ mkdir build
-        $ cd build
-        $ ../configure --target=or1k-elf --enable-shared --disable-itcl \
-                       --disable-tk --disable-tcl --disable-winsup \
-                       --disable-gdbtk --disable-libgui --disable-rda \
-                       --disable-sid --disable-sim --disable-gdb \
-                       --disable-newlib --disable-libgloss --disable-werror
-        $ make -j4
-        $ sudo make install
-
-        $ cd ~/artiq-dev
-        $ git clone https://github.com/openrisc/or1k-gcc
-        $ cd or1k-gcc
-        $ mkdir build
-        $ cd build
-        $ ../configure --target=or1k-elf --enable-languages=c \
-                       --disable-shared --disable-libssp
-        $ make -j4
-        $ sudo make install
-
 .. _install-xc3sprog:
 
 * Install JTAG tools needed to program the Pipistrello and KC705:
@@ -181,6 +197,7 @@ These steps are required to generate bitstream (``.bit``) files, build the MiSoC
     ::
 
         $ cd ~/artiq-dev/misoc
+        $ export PATH=$PATH:/usr/local/llvm-or1k/bin
 
     * For Pipistrello::
 
@@ -279,19 +296,7 @@ To flash the ``idle`` kernel:
 Installing the host-side software
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
-* Install LLVM and the llvmlite Python bindings: ::
+* Install the llvmlite Python bindings: ::
-
-        $ cd ~/artiq-dev
-        $ git clone https://github.com/openrisc/llvm-or1k
-        $ cd llvm-or1k/tools
-        $ git clone https://github.com/openrisc/clang-or1k clang
-
-        $ cd ..
-        $ mkdir build
-        $ cd build
-        $ cmake .. -DCMAKE_INSTALL_PREFIX=/usr/local/llvm-or1k -DLLVM_TARGETS_TO_BUILD="OR1K;X86" -DCMAKE_BUILD_TYPE=Debug
-        $ make -j4
-        $ sudo make install
 
         $ cd ~/artiq-dev
         $ git clone https://github.com/numba/llvmlite
@@ -299,14 +304,11 @@ Installing the host-side software
         $ patch -p1 < ~/artiq-dev/artiq/misc/llvmlite-add-all-targets.patch
         $ patch -p1 < ~/artiq-dev/artiq/misc/llvmlite-rename.patch
         $ patch -p1 < ~/artiq-dev/artiq/misc/llvmlite-build-as-debug-on-windows.patch
-        $ PATH=/usr/local/llvm-or1k/bin:$PATH sudo -E python3 setup.py install
+        $ LLVM_CONFIG=/usr/local/llvm-or1k/bin/llvm-config python3 setup.py install --user
 
 .. note::
     llvmlite is in development and its API is not stable yet. Commit ID ``11a8303d02e3d6dd2d1e0e9065701795cd8a979f`` is known to work.
 
-.. note::
-    Compilation of LLVM can take more than 30 min on some machines.
-
 * Install ARTIQ: ::
 
         $ cd ~/artiq-dev

examples/master/ddb.pyon

@@ -53,7 +53,7 @@
         "type": "local",
         "module": "artiq.coredevice.ttl",
         "class": "TTLOut",
-        "arguments": {"channel": 18}
+        "arguments": {"channel": 17}
     },
 
     "dds_bus": {

examples/master/repository/flopping_f_simulation.py

@@ -27,12 +27,11 @@ class FloppingF(EnvExperiment):
     """Flopping F simulation"""
 
     def build(self):
-        self.attr_argument("npoints", FreeValue(100))
+        self.attr_argument("frequency_scan", Scannable(
-        self.attr_argument("min_freq", FreeValue(1000))
+            default=LinearScan(1000, 2000, 100)))
-        self.attr_argument("max_freq", FreeValue(2000))
 
-        self.attr_argument("F0", FreeValue(1500))
+        self.attr_argument("F0", NumberValue(1500, min=1000, max=2000))
-        self.attr_argument("noise_amplitude", FreeValue(0.1))
+        self.attr_argument("noise_amplitude", NumberValue(0.1, min=0, max=100))
 
         self.frequency = self.set_result("flopping_f_frequency", [], True)
         self.brightness = self.set_result("flopping_f_brightness", [], True)
@@ -40,8 +39,7 @@ class FloppingF(EnvExperiment):
         self.attr_device("scheduler")
 
     def run(self):
-        for i in range(self.npoints):
+        for frequency in self.frequency_scan:
-            frequency = (self.max_freq-self.min_freq)*i/(self.npoints - 1) + self.min_freq
             brightness = model(frequency, self.F0) + self.noise_amplitude*random.random()
             self.frequency.append(frequency)
             self.brightness.append(brightness)

setup.py

@@ -1,12 +1,22 @@
 #!/usr/bin/env python3
 
-from setuptools import setup, find_packages
+from setuptools import setup, find_packages, Command
 import sys
 import os
 
 if sys.version_info[:3] < (3, 4, 3):
     raise Exception("You need at least Python 3.4.3 to run ARTIQ")
 
+class PushDocCommand(Command):
+    description = "uploads the documentation to m-labs.hk"
+    user_options = []
+    def initialize_options(self):
+        pass
+    def finalize_options(self):
+        pass
+    def run(self):
+        os.system("rsync -avz doc/manual/_build/html/ shell.serverraum.org:~/web/m-labs.hk/artiq/manual")
+
 requirements = [
     "sphinx", "sphinx-argparse", "pyserial", "numpy", "scipy",
     "python-dateutil", "prettytable", "h5py", "pydaqmx", "pyelftools",
@@ -52,5 +62,6 @@ setup(
     ext_modules=[],
     entry_points={
         "console_scripts": scripts,
-    }
+    },
+    cmdclass={"push_doc":PushDocCommand}
 )

soc/runtime/kloader.c

@@ -4,6 +4,7 @@
 #include "log.h"
 #include "flash_storage.h"
 #include "mailbox.h"
+#include "messages.h"
 #include "elf_loader.h"
 #include "services.h"
 #include "kloader.h"
@@ -122,3 +123,65 @@ void kloader_stop(void)
     kernel_cpu_reset_write(1);
     mailbox_acknowledge();
 }
+
+int kloader_validate_kpointer(void *p)
+{
+    unsigned int v = (unsigned int)p;
+    if((v < 0x40400000) || (v > (0x4fffffff - 1024*1024))) {
+        log("Received invalid pointer from kernel CPU: 0x%08x", v);
+        return 0;
+    }
+    return 1;
+}
+
+int kloader_is_essential_kmsg(int msgtype)
+{
+    switch(msgtype) {
+        case MESSAGE_TYPE_NOW_INIT_REQUEST:
+        case MESSAGE_TYPE_NOW_SAVE:
+        case MESSAGE_TYPE_LOG:
+            return 1;
+        default:
+            return 0;
+    }
+}
+
+long long int now;
+
+void kloader_service_essential_kmsg(void)
+{
+    struct msg_base *umsg;
+
+    umsg = mailbox_receive();
+    if(umsg) {
+        if(!kloader_validate_kpointer(umsg))
+            return;
+        switch(umsg->type) {
+            case MESSAGE_TYPE_NOW_INIT_REQUEST: {
+                struct msg_now_init_reply reply;
+
+                reply.type = MESSAGE_TYPE_NOW_INIT_REPLY;
+                reply.now = now;
+                mailbox_send_and_wait(&reply);
+                break;
+            }
+            case MESSAGE_TYPE_NOW_SAVE: {
+                struct msg_now_save *msg = (struct msg_now_save *)umsg;
+
+                now = msg->now;
+                mailbox_acknowledge();
+                break;
+            }
+            case MESSAGE_TYPE_LOG: {
+                struct msg_log *msg = (struct msg_log *)umsg;
+
+                log_va(msg->fmt, msg->args);
+                mailbox_acknowledge();
+                break;
+            }
+            default:
+                /* handled elsewhere */
+                break;
+        }
+    }
+}

soc/runtime/kloader.h

@@ -4,6 +4,8 @@
 #define KERNELCPU_EXEC_ADDRESS 0x40400000
 #define KERNELCPU_PAYLOAD_ADDRESS 0x40404000
 
+extern long long int now;
+
 typedef void (*kernel_function)(void);
 
 int kloader_load(void *buffer, int length);
@@ -14,4 +16,8 @@ void kloader_start_idle_kernel(void);
 void kloader_start_user_kernel(kernel_function k);
 void kloader_stop(void);
 
+int kloader_validate_kpointer(void *p);
+int kloader_is_essential_kmsg(int msgtype);
+void kloader_service_essential_kmsg(void);
+
 #endif /* __KLOADER_H */

soc/runtime/ksupport.ld

@@ -24,6 +24,17 @@ SECTIONS
         _etext = .;
     } > ksupport
 
+    .got :
+    {
+        _GLOBAL_OFFSET_TABLE_ = .;
+        *(.got)
+    } > ksupport
+
+    .got.plt :
+    {
+        *(.got.plt)
+    } > ksupport
+
     .rodata :
     {
         . = ALIGN(4);
@@ -39,7 +50,6 @@ SECTIONS
         _fdata = .;
         *(.data .data.* .gnu.linkonce.d.*)
         *(.data1)
-        _gp = ALIGN(16);
         *(.sdata .sdata.* .gnu.linkonce.s.*)
         _edata = .;
     } > ksupport

soc/runtime/linker.ld

@@ -26,6 +26,17 @@ SECTIONS
 		_etext = .;
 	} > runtime
 
+	.got :
+	{
+		_GLOBAL_OFFSET_TABLE_ = .;
+		*(.got)
+	} > runtime
+
+	.got.plt :
+	{
+		*(.got.plt)
+	} > runtime
+
 	.rodata :
 	{
 		. = ALIGN(4);
@@ -41,7 +52,6 @@ SECTIONS
 		_fdata = .;
 		*(.data .data.* .gnu.linkonce.d.*)
 		*(.data1)
-		_gp = ALIGN(16);
 		*(.sdata .sdata.* .gnu.linkonce.s.*)
 		_edata = .;
 	} > runtime

soc/runtime/main.c

@@ -143,6 +143,7 @@ static void regular_main(void)
     session_end();
     while(1) {
         lwip_service();
+        kloader_service_essential_kmsg();
         kserver_service();
     }
 }
@@ -201,8 +202,10 @@ static void regular_main(void)
 
     /* Open the session for the serial control. */
     session_start();
-    while(1)
+    while(1) {
+        kloader_service_essential_kmsg();
         serial_service();
+    }
 }
 
 #endif

soc/runtime/session.c

@@ -11,8 +11,8 @@
 #include "log.h"
 #include "kloader.h"
 #include "exceptions.h"
-#include "session.h"
 #include "flash_storage.h"
+#include "session.h"
 
 #define BUFFER_IN_SIZE (1024*1024)
 #define BUFFER_OUT_SIZE (1024*1024)
@@ -55,7 +55,6 @@ static void submit_output(int len)
 }
 
 static int user_kernel_state;
-static long long int now;
 
 enum {
     USER_KERNEL_NONE = 0,
@@ -153,7 +152,7 @@ static int process_input(void)
                 log("Attempted to switch RTIO clock while kernel running");
                 buffer_out[8] = REMOTEMSG_TYPE_CLOCK_SWITCH_FAILED;
                 submit_output(9);
-                break;    
+                break;
             }
             rtio_crg_clock_sel_write(buffer_in[9]);
             buffer_out[8] = REMOTEMSG_TYPE_CLOCK_SWITCH_COMPLETED;
@@ -421,16 +420,6 @@ static int add_rpc_value(int bi, int type_tag, void *value)
     return bi - obi;
 }
 
-static int validate_kpointer(void *p)
-{
-    unsigned int v = (unsigned int)p;
-    if((v < 0x40400000) || (v > (0x4fffffff - 1024*1024))) {
-        log("Received invalid pointer from kernel CPU: 0x%08x", v);
-        return 0;
-    }
-    return 1;
-}
-
 static int send_rpc_request(int rpc_num, va_list args)
 {
     int r;
@@ -448,7 +437,7 @@ static int send_rpc_request(int rpc_num, va_list args)
             v = NULL;
         else {
             v = va_arg(args, void *);
-            if(!validate_kpointer(v))
+            if(!kloader_validate_kpointer(v))
                 return 0;
         }
         r = add_rpc_value(bi, type_tag, v);
@@ -467,31 +456,16 @@ static int send_rpc_request(int rpc_num, va_list args)
 /* assumes output buffer is empty when called */
 static int process_kmsg(struct msg_base *umsg)
 {
-    if(!validate_kpointer(umsg))
+    if(!kloader_validate_kpointer(umsg))
         return 0;
-    if((user_kernel_state != USER_KERNEL_RUNNING)
+    if(kloader_is_essential_kmsg(umsg->type))
-      && (umsg->type != MESSAGE_TYPE_NOW_INIT_REQUEST)
+        return 1; /* handled elsewhere */
-      && (umsg->type != MESSAGE_TYPE_NOW_SAVE)) {
+    if(user_kernel_state != USER_KERNEL_RUNNING) {
         log("Received unexpected message from kernel CPU while not in running state");
         return 0;
     }
 
     switch(umsg->type) {
-        case MESSAGE_TYPE_NOW_INIT_REQUEST: {
-            struct msg_now_init_reply reply;
-
-            reply.type = MESSAGE_TYPE_NOW_INIT_REPLY;
-            reply.now = now;
-            mailbox_send_and_wait(&reply);
-            break;
-        }
-        case MESSAGE_TYPE_NOW_SAVE: {
-            struct msg_now_save *msg = (struct msg_now_save *)umsg;
-
-            now = msg->now;
-            mailbox_acknowledge();
-            break;
-        }
         case MESSAGE_TYPE_FINISHED:
             buffer_out[8] = REMOTEMSG_TYPE_KERNEL_FINISHED;
             submit_output(9);
@@ -538,13 +512,6 @@ static int process_kmsg(struct msg_base *umsg)
             mailbox_acknowledge();
             break;
         }
-        case MESSAGE_TYPE_LOG: {
-            struct msg_log *msg = (struct msg_log *)umsg;
-
-            log_va(msg->fmt, msg->args);
-            mailbox_acknowledge();
-            break;
-        }
         default: {
             log("Received invalid message type from kernel CPU");
             return 0;