CSE2410 Fall 2014 Bounce

  elif sys.platform.startswith('linux'):

    o['variables']['node_use_dtrace'] = 'false'

    o['variables']['node_use_systemtap'] = b(not options.without_dtrace)

    raise Exception(

       'DTrace is currently only supported on SunOS or Linux systems.')

    'node_use_systemtap%': 'false',

        [ 'node_use_systemtap=="true"', {

          'defines': [ 'HAVE_SYSTEMTAP=1', 'STAP_SDT_V1=1' ],

          'dependencies': [ 'node_systemtap_header' ],

          'include_dirs': [ '<(SHARED_INTERMEDIATE_DIR)' ],

          'sources': [

            'src/node_dtrace.cc',

            '<(SHARED_INTERMEDIATE_DIR)/node_systemtap.h',

          ],

        } ],

            [ 'node_use_dtrace=="true"'

              ' or node_use_etw=="true"'

              ' or node_use_systemtap=="true"',

            {

      'target_name': 'node_systemtap_header',

      'type': 'none',

      'conditions': [

        [ 'node_use_systemtap=="true"', {

          'actions': [

            {

              'action_name': 'node_systemtap_header',

              'inputs': [ 'src/node_systemtap.d' ],

              'outputs': [ '<(SHARED_INTERMEDIATE_DIR)/node_systemtap.h' ],

              'action': [ 'dtrace', '-h', '-C', '-s', '<@(_inputs)',

                '-o', '<@(_outputs)' ]

            }

          ]

        } ]

      ]

    },

    {

#if defined HAVE_DTRACE || defined HAVE_ETW || defined HAVE_SYSTEMTAP

#if HAVE_SYSTEMTAP

#include "node_systemtap.h"

#endif

#if defined HAVE_DTRACE || defined HAVE_ETW || defined HAVE_SYSTEMTAP

#include "node_dtrace.h"

#include <string.h>

#include "node_dtrace.h"

#include <string.h>

#elif HAVE_SYSTEMTAP

#include <string.h>

#include <node.h>

#include <v8.h>

#include <sys/sdt.h>

#include "node_systemtap.h"

#include "node_dtrace.h"

#ifndef HAVE_SYSTEMTAP

#endif

#ifdef HAVE_SYSTEMTAP

  NODE_NET_SERVER_CONNECTION(conn.fd, conn.remote, conn.port, \

                             conn.buffered);

#else

#endif

#ifndef HAVE_SYSTEMTAP

#endif

#ifdef HAVE_SYSTEMTAP

  NODE_NET_STREAM_END(conn.fd, conn.remote, conn.port, conn.buffered);

#else

#endif

#ifndef HAVE_SYSTEMTAP

#endif

#ifdef HAVE_SYSTEMTAP

  NODE_NET_SOCKET_READ(conn.fd, conn.remote, conn.port, conn.buffered);

#else

  int nbytes = args[1]->Int32Value();

#endif

#ifndef HAVE_SYSTEMTAP

#endif

#ifdef HAVE_SYSTEMTAP

  NODE_NET_SOCKET_WRITE(conn.fd, conn.remote, conn.port, conn.buffered);

#else

  int nbytes = args[1]->Int32Value();

#endif

#ifndef HAVE_SYSTEMTAP

#endif

#ifdef HAVE_SYSTEMTAP

  NODE_HTTP_SERVER_REQUEST(&req, conn.fd, conn.remote, conn.port, \

                           conn.buffered);

#else

#endif

#ifndef HAVE_SYSTEMTAP

#endif

#ifdef HAVE_SYSTEMTAP

  NODE_HTTP_SERVER_RESPONSE(conn.fd, conn.remote, conn.port, conn.buffered);

#else

#endif

#ifndef HAVE_SYSTEMTAP

#endif

#ifdef HAVE_SYSTEMTAP

  NODE_HTTP_CLIENT_REQUEST(&req, conn.fd, conn.remote, conn.port, \

                           conn.buffered);

#else

#endif

#ifndef HAVE_SYSTEMTAP

#endif

#ifdef HAVE_SYSTEMTAP

  NODE_HTTP_CLIENT_RESPONSE(conn.fd, conn.remote, conn.port, conn.buffered);

#else

#endif

#define NODE_PROBE(name) #name, name, Persistent<FunctionTemplate>()

#ifdef HAVE_SYSTEMTAP

  NODE_GC_START();

#else

#endif

#ifdef HAVE_SYSTEMTAP

  NODE_GC_DONE();

#else

#endif

    { NODE_PROBE(DTRACE_HTTP_CLIENT_RESPONSE) }

  for (unsigned int i = 0; i < ARRAY_SIZE(tab); i++) {

#if defined HAVE_DTRACE || defined HAVE_ETW || defined HAVE_SYSTEMTAP

// Copyright Joyent, Inc. and other Node contributors.

//

// Permission is hereby granted, free of charge, to any person obtaining a

// copy of this software and associated documentation files (the

// "Software"), to deal in the Software without restriction, including

// without limitation the rights to use, copy, modify, merge, publish,

// distribute, sublicense, and/or sell copies of the Software, and to permit

// persons to whom the Software is furnished to do so, subject to the

// following conditions:

//

// The above copyright notice and this permission notice shall be included

// in all copies or substantial portions of the Software.

//

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN

// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,

// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR

// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE

// USE OR OTHER DEALINGS IN THE SOFTWARE.

// Hints:

// This .d defines compiled in probes

//     probes are handles (untyped pointers)

//     v8 forward declared objs (dtrace_connection_t) are defined

//     in node_dtrace.cc which builds an InitDtrace object which

//     gets populated with the probes

//     The probes gather the following:

//     PROBE_REQUEST(req, fd, remote, port, buffered)

//     PROBE_OTHER(fd, remote, port, buffered)

// other notes:

//     using any PROBE_ENABLED() macros in dtrace.cc sdt broke it

//     can only pass strings/ints/primitives not dtrace_connection_t

//          conn or other structs

//     verify probe existence by using

//          $ stap -l 'process("out/Release/node").mark("*")'

// TODO: write .stp scripts (node.stp, node_v8ustack.stp + ???)

provider node {

    probe http__client__request(string, int, string, int, int);

    probe http__client__response(int, string, int, int);

    probe http__server__request(string, int, string, int, int);

    probe http__server__response(int, string, int, int);

    probe net__server__connection(int, string, int, int);

    probe net__socket__read(int, string, int, int);

    probe net__socket__write(int, string, int, int);

    probe net__stream__end(int, string, int, int);

    probe gc__done();

    probe gc__start();

};