forked from AbleOS/ableos
they don't seem to be used? removing.
This commit is contained in:
parent
e85e5f2ed8
commit
58046c3c7b
46
TODO.md
46
TODO.md
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# AbleOS
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## General
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- [ ] Improve EXT2
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- [ ] Remove x86 specific code and refine the boot process
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## Capabilities
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A new process should not have any capabilities at all until it is given them or requests them and is approved.
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- [ ] Filesystem cap
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- [ ] Create a new filesystem
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- [ ] Unmount/Mount a filesystem
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- [ ] read a file
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- [ ] write a file
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- [ ] delete a file
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- [ ] Network cap
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- [ ] open/close socket
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- [ ] bind/unbind socket
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- [ ] Manage Process cap
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- [ ] spawn Process cap
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- [ ] kill Process cap
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## Riscv
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## ARM
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- [ ] Get arm-version booting on real hardware
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## Drivers
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- [ ] Slim down driver specific program code
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- [ ] Remove entry/exit functions for drivers
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## Filesystem
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- [ ] Create a vfs that ties into the capability system
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- [ ] Remote home directory
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- [ ] local file caching
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- [ ] remote file changes
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- [ ] Update file if the remote file changes
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# Tooling
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## Repbuild
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- [ ] make generation of the ext2 image possible
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243
qmp.py
243
qmp.py
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@ -1,243 +0,0 @@
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# QEMU Monitor Protocol Python class
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#
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# Copyright (C) 2009, 2010 Red Hat Inc.
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#
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# Authors:
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# Luiz Capitulino <lcapitulino@redhat.com>
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#
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# This work is licensed under the terms of the GNU GPL, version 2. See
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# the COPYING file in the top-level directory.
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import json
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import errno
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import socket
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import logging
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class QMPError(Exception):
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pass
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class QMPConnectError(QMPError):
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pass
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class QMPCapabilitiesError(QMPError):
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pass
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class QMPTimeoutError(QMPError):
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pass
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class QEMUMonitorProtocol(object):
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#: Logger object for debugging messages
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logger = logging.getLogger('QMP')
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#: Socket's error class
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error = socket.error
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#: Socket's timeout
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timeout = socket.timeout
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def __init__(self, address, server=False):
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"""
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Create a QEMUMonitorProtocol class.
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@param address: QEMU address, can be either a unix socket path (string)
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or a tuple in the form ( address, port ) for a TCP
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connection
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@param server: server mode listens on the socket (bool)
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@raise socket.error on socket connection errors
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@note No connection is established, this is done by the connect() or
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accept() methods
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"""
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self.__events = []
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self.__address = address
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self.__sock = self.__get_sock()
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self.__sockfile = None
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if server:
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self.__sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
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self.__sock.bind(self.__address)
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self.__sock.listen(1)
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def __get_sock(self):
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if isinstance(self.__address, tuple):
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family = socket.AF_INET
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else:
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family = socket.AF_UNIX
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return socket.socket(family, socket.SOCK_STREAM)
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def __negotiate_capabilities(self):
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greeting = self.__json_read()
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if greeting is None or "QMP" not in greeting:
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raise QMPConnectError
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# Greeting seems ok, negotiate capabilities
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resp = self.cmd('qmp_capabilities')
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if "return" in resp:
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return greeting
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raise QMPCapabilitiesError
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def __json_read(self, only_event=False):
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while True:
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data = self.__sockfile.readline()
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if not data:
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return
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resp = json.loads(data)
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if 'event' in resp:
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self.logger.debug("<<< %s", resp)
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self.__events.append(resp)
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if not only_event:
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continue
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return resp
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def __get_events(self, wait=False):
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"""
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Check for new events in the stream and cache them in __events.
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@param wait (bool): block until an event is available.
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@param wait (float): If wait is a float, treat it as a timeout value.
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@raise QMPTimeoutError: If a timeout float is provided and the timeout
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period elapses.
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@raise QMPConnectError: If wait is True but no events could be
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retrieved or if some other error occurred.
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"""
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# Check for new events regardless and pull them into the cache:
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self.__sock.setblocking(0)
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try:
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self.__json_read()
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except socket.error as err:
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if err[0] == errno.EAGAIN:
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# No data available
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pass
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self.__sock.setblocking(1)
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# Wait for new events, if needed.
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# if wait is 0.0, this means "no wait" and is also implicitly false.
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if not self.__events and wait:
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if isinstance(wait, float):
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self.__sock.settimeout(wait)
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try:
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ret = self.__json_read(only_event=True)
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except socket.timeout:
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raise QMPTimeoutError("Timeout waiting for event")
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except:
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raise QMPConnectError("Error while reading from socket")
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if ret is None:
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raise QMPConnectError("Error while reading from socket")
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self.__sock.settimeout(None)
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def connect(self, negotiate=True):
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"""
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Connect to the QMP Monitor and perform capabilities negotiation.
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@return QMP greeting dict
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@raise socket.error on socket connection errors
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@raise QMPConnectError if the greeting is not received
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@raise QMPCapabilitiesError if fails to negotiate capabilities
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"""
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self.__sock.connect(self.__address)
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self.__sockfile = self.__sock.makefile()
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if negotiate:
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return self.__negotiate_capabilities()
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def accept(self):
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"""
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Await connection from QMP Monitor and perform capabilities negotiation.
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@return QMP greeting dict
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@raise socket.error on socket connection errors
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@raise QMPConnectError if the greeting is not received
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@raise QMPCapabilitiesError if fails to negotiate capabilities
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"""
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self.__sock.settimeout(15)
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self.__sock, _ = self.__sock.accept()
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self.__sockfile = self.__sock.makefile()
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return self.__negotiate_capabilities()
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def cmd_obj(self, qmp_cmd):
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"""
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Send a QMP command to the QMP Monitor.
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@param qmp_cmd: QMP command to be sent as a Python dict
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@return QMP response as a Python dict or None if the connection has
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been closed
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"""
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self.logger.debug(">>> %s", qmp_cmd)
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try:
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self.__sock.sendall(json.dumps(qmp_cmd).encode('utf-8'))
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except socket.error as err:
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if err[0] == errno.EPIPE:
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return
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raise socket.error(err)
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resp = self.__json_read()
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self.logger.debug("<<< %s", resp)
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return resp
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def cmd(self, name, args=None, cmd_id=None):
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"""
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Build a QMP command and send it to the QMP Monitor.
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@param name: command name (string)
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@param args: command arguments (dict)
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@param cmd_id: command id (dict, list, string or int)
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"""
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qmp_cmd = {'execute': name}
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if args:
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qmp_cmd['arguments'] = args
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if cmd_id:
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qmp_cmd['id'] = cmd_id
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return self.cmd_obj(qmp_cmd)
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def command(self, cmd, **kwds):
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"""
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Build and send a QMP command to the monitor, report errors if any
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"""
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ret = self.cmd(cmd, kwds)
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if "error" in ret:
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raise Exception(ret['error']['desc'])
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return ret['return']
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def pull_event(self, wait=False):
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"""
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Pulls a single event.
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@param wait (bool): block until an event is available.
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@param wait (float): If wait is a float, treat it as a timeout value.
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@raise QMPTimeoutError: If a timeout float is provided and the timeout
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period elapses.
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@raise QMPConnectError: If wait is True but no events could be
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retrieved or if some other error occurred.
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@return The first available QMP event, or None.
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"""
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self.__get_events(wait)
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if self.__events:
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return self.__events.pop(0)
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return None
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def get_events(self, wait=False):
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"""
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Get a list of available QMP events.
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@param wait (bool): block until an event is available.
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@param wait (float): If wait is a float, treat it as a timeout value.
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@raise QMPTimeoutError: If a timeout float is provided and the timeout
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period elapses.
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@raise QMPConnectError: If wait is True but no events could be
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retrieved or if some other error occurred.
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@return The list of available QMP events.
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"""
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self.__get_events(wait)
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return self.__events
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def clear_events(self):
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"""
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Clear current list of pending events.
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"""
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self.__events = []
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def close(self):
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self.__sock.close()
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self.__sockfile.close()
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def settimeout(self, timeout):
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self.__sock.settimeout(timeout)
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def get_sock_fd(self):
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return self.__sock.fileno()
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def is_scm_available(self):
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return self.__sock.family == socket.AF_UNIX
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118
qprofiler.py
118
qprofiler.py
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#!/usr/bin/python
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#
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# QProfiler is a QEMU profiler based on QMP
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#
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# Copyright (c) 2019-2022 Matias Vara <matiasevara@gmail.com>
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# All Rights Reserved
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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from __future__ import print_function
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import sys, os, re
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from qmp import QEMUMonitorProtocol
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from time import sleep
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import subprocess
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def main(args):
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path = None
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filename = None
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# duration of the test in seconds
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duration = 5
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# sampling frequency in seconds
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frequency = 0.05
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while len(args):
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arg = args[0]
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if arg.startswith('--'):
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arg = arg[2:]
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if arg.find('=') == -1:
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value = True
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else:
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arg, value = arg.split('=', 1)
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if arg in ['path']:
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if type(value) == str:
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path = value
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elif arg in ['duration']:
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duration = int(value)
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elif arg in ['frequency']:
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frequency = float(value)
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elif arg in ['filename']:
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filename = value
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else:
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print('Unknown argument "%s"' % arg)
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return 1
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args = args[1:]
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else:
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break
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if not path:
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print("Path isn't set, use --path=qmp-monitor-address")
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return 1
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def do_command(srv, cmd, **kwds):
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rsp = srv.cmd(cmd, kwds)
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if 'error' in rsp:
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raise Exception(rsp['error']['desc'])
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return rsp['return']
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srv = QEMUMonitorProtocol(path)
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srv.connect()
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arguments = {}
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command = 'human-monitor-command'
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r = int(duration // frequency)
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rip_hash = {}
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for i in range(r):
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arguments['command-line'] = 'info registers'
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rsp = do_command(srv, command, **arguments)
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regs = re.search(r'RIP=([\w]+)\s', rsp)
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rip = regs.group(1)
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if rip in rip_hash:
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rip_hash[rip] += 1
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else:
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rip_hash[rip] = 1
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sleep(frequency)
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srv.close()
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rip_hash_name = {}
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for i in rip_hash:
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with open(os.devnull, 'w') as devnull:
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# pass
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tmp = subprocess.check_output("addr2line --demangle -p -s -f -e "
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+ filename
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+ " "
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+ i , shell=True, stderr=devnull).rstrip()
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if tmp in rip_hash_name:
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rip_hash_name[tmp] += rip_hash[i]
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else:
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rip_hash_name[tmp] = rip_hash[i]
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for i in rip_hash_name:
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print('{:>8} {}'.format(rip_hash_name[i], i))
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if __name__ == '__main__':
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sys.exit(main(sys.argv[1:]))
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|
Loading…
Reference in a new issue