Adding upstream version 115.7.0esr.upstream/115.7.0esr

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
author: Daniel Baumann <daniel.baumann@progress-linux.org> 2024-04-07 19:33:14 +0000
committer: Daniel Baumann <daniel.baumann@progress-linux.org> 2024-04-07 19:33:14 +0000
commit: 36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree: 105e8c98ddea1c1e4784a60a5a6410fa416be2de /tools/leak-gauge
parent: Initial commit. (diff)
download: firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
2 files changed, 559 insertions, 0 deletions
diff --git a/tools/leak-gauge/leak-gauge.html b/tools/leak-gauge/leak-gauge.html
new file mode 100644
index 0000000000..7eb2de10c1
--- /dev/null
+++ b/tools/leak-gauge/leak-gauge.html
@@ -0,0 +1,320 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<!--
+  vim:sw=4:ts=4:et:
+ This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/.
+-->
+<html lang="en-US">
+  <head>
+    <meta charset="UTF-8" />
+    <title>Leak Gauge</title>
+
+    <style type="text/css">
+      pre {
+        margin: 0;
+      }
+      pre.output {
+        border: medium solid;
+        padding: 1em;
+        margin: 1em;
+      }
+    </style>
+    <script>
+      function runfile(file) {
+        var result = "Results of processing log " + file.fileName + " :\n";
+
+        var fileReader = new FileReader();
+        fileReader.onload = function (e) {
+          runContents(result, e.target.result);
+        };
+        fileReader.readAsText(file, "iso-8859-1");
+      }
+
+      function runContents(result, contents) {
+        // A hash of objects (keyed by the first word of the line in the log)
+        // that have two public methods, handle_line and dump (to be called using
+        // call, above), along with any private data they need.
+        var handlers = {
+          DOMWINDOW: {
+            count: 0,
+            windows: {},
+            handle_line(line) {
+              var match = line.match(/^([0-9a-f]*) (\S*)(.*)/);
+              if (match) {
+                var addr = match[1];
+                var verb = match[2];
+                var rest = match[3];
+                if (verb == "created") {
+                  let m = rest.match(/ outer=([0-9a-f]*)$/);
+                  if (!m) throw new Error("outer expected");
+                  this.windows[addr] = { outer: m[1] };
+                  ++this.count;
+                } else if (verb == "destroyed") {
+                  delete this.windows[addr];
+                } else if (verb == "SetNewDocument") {
+                  let m = rest.match(/^ (.*)$/);
+                  if (!m) throw new Error("URI expected");
+                  this.windows[addr][m[1]] = true;
+                }
+              }
+            },
+            dump() {
+              for (var addr in this.windows) {
+                var winobj = this.windows[addr];
+                var outer = winobj.outer;
+                delete winobj.outer;
+                result +=
+                  "Leaked " +
+                  (outer == "0" ? "outer" : "inner") +
+                  " window " +
+                  addr +
+                  " " +
+                  (outer == "0" ? "" : "(outer " + outer + ") ") +
+                  "at address " +
+                  addr +
+                  ".\n";
+                for (var uri in winobj) {
+                  result += ' ... with URI "' + uri + '".\n';
+                }
+              }
+            },
+            summary() {
+              result +=
+                "Leaked " +
+                Object.keys(this.windows).length +
+                " out of " +
+                this.count +
+                " DOM Windows\n";
+            },
+          },
+          DOCUMENT: {
+            count: 0,
+            docs: {},
+            handle_line(line) {
+              var match = line.match(/^([0-9a-f]*) (\S*)(.*)/);
+              if (match) {
+                var addr = match[1];
+                var verb = match[2];
+                var rest = match[3];
+                if (verb == "created") {
+                  this.docs[addr] = {};
+                  ++this.count;
+                } else if (verb == "destroyed") {
+                  delete this.docs[addr];
+                } else if (
+                  verb == "ResetToURI" ||
+                  verb == "StartDocumentLoad"
+                ) {
+                  var m = rest.match(/^ (.*)$/);
+                  if (!m) throw new Error("URI expected");
+                  var uri = m[1];
+                  var doc_info = this.docs[addr];
+                  doc_info[uri] = true;
+                  if ("nim" in doc_info) {
+                    doc_info.nim[uri] = true;
+                  }
+                }
+              }
+            },
+            dump() {
+              for (var addr in this.docs) {
+                var doc = this.docs[addr];
+                result += "Leaked document at address " + addr + ".\n";
+                for (var uri in doc) {
+                  if (uri != "nim") {
+                    result += ' ... with URI "' + uri + '".\n';
+                  }
+                }
+              }
+            },
+            summary() {
+              result +=
+                "Leaked " +
+                Object.keys(this.docs).length +
+                " out of " +
+                this.count +
+                " documents\n";
+            },
+          },
+          DOCSHELL: {
+            count: 0,
+            shells: {},
+            handle_line(line) {
+              var match = line.match(/^([0-9a-f]*) (\S*)(.*)/);
+              if (match) {
+                var addr = match[1];
+                var verb = match[2];
+                var rest = match[3];
+                if (verb == "created") {
+                  this.shells[addr] = {};
+                  ++this.count;
+                } else if (verb == "destroyed") {
+                  delete this.shells[addr];
+                } else if (verb == "InternalLoad" || verb == "SetCurrentURI") {
+                  var m = rest.match(/^ (.*)$/);
+                  if (!m) throw new Error("URI expected");
+                  this.shells[addr][m[1]] = true;
+                }
+              }
+            },
+            dump() {
+              for (var addr in this.shells) {
+                var doc = this.shells[addr];
+                result += "Leaked docshell at address " + addr + ".\n";
+                for (var uri in doc) {
+                  result += ' ... which loaded URI "' + uri + '".\n';
+                }
+              }
+            },
+            summary() {
+              result +=
+                "Leaked " +
+                Object.keys(this.shells).length +
+                " out of " +
+                this.count +
+                " docshells\n";
+            },
+          },
+          NODEINFOMANAGER: {
+            count: 0,
+            nims: {},
+            handle_line(line) {
+              var match = line.match(/^([0-9a-f]*) (\S*)(.*)/);
+              if (match) {
+                var addr = match[1];
+                var verb = match[2];
+                var rest = match[3];
+                if (verb == "created") {
+                  this.nims[addr] = {};
+                  ++this.count;
+                } else if (verb == "destroyed") {
+                  delete this.nims[addr];
+                } else if (verb == "Init") {
+                  var m = rest.match(/^ document=(.*)$/);
+                  if (!m) throw new Error("document pointer expected");
+                  var nim_info = this.nims[addr];
+                  var doc = m[1];
+                  if (doc != "0") {
+                    var doc_info = handlers.DOCUMENT.docs[doc];
+                    for (var uri in doc_info) {
+                      nim_info[uri] = true;
+                    }
+                    doc_info.nim = nim_info;
+                  }
+                }
+              }
+            },
+            dump() {
+              for (var addr in this.nims) {
+                var nim = this.nims[addr];
+                result +=
+                  "Leaked content nodes associated with node info manager at address " +
+                  addr +
+                  ".\n";
+                for (var uri in nim) {
+                  result += ' ... with document URI "' + uri + '".\n';
+                }
+              }
+            },
+            summary() {
+              result +=
+                "Leaked content nodes in " +
+                Object.keys(this.nims).length +
+                " out of " +
+                this.count +
+                " documents\n";
+            },
+          },
+        };
+
+        var lines = contents.split(/[\r\n]+/);
+        for (var j in lines) {
+          var line = lines[j];
+          // strip off initial "-", thread id, and thread pointer; separate
+          // first word and rest
+          var matches = line.match(/^\-?[0-9]*\[[0-9a-f]*\]: (\S*) (.*)$/);
+          if (matches) {
+            let handler = matches[1];
+            var data = matches[2];
+            if (typeof handlers[handler] != "undefined") {
+              handlers[handler].handle_line(data);
+            }
+          }
+        }
+
+        for (let handler in handlers) handlers[handler].dump();
+        if (result.length) result += "\n";
+        result += "Summary:\n";
+        for (let handler in handlers) handlers[handler].summary();
+        result += "\n";
+
+        var out = document.createElement("pre");
+        out.className = "output";
+        out.appendChild(document.createTextNode(result));
+        document.body.appendChild(out);
+      }
+
+      function run() {
+        var input = document.getElementById("fileinput");
+        var files = input.files;
+        for (var i = 0; i < files.length; ++i) runfile(files[i]);
+        // So the user can process the same filename again (after
+        // overwriting the log), clear the value on the form input so we
+        // will always get an onchange event.
+        input.value = "";
+      }
+    </script>
+  </head>
+  <body>
+    <h1>Leak Gauge</h1>
+
+    <pre>
+$Id: leak-gauge.html,v 1.8 2008/02/08 19:55:34 dbaron%dbaron.org Exp $</pre
+    >
+
+    <p>
+      This script is designed to help testers isolate and simplify testcases for
+      many classes of leaks (those that involve large graphs of core data
+      structures) in Mozilla-based browsers. It is designed to print information
+      about what has leaked by processing a log taken while running the browser.
+      Such a log can be taken over a long session of normal browsing and then
+      the log can be processed to find sites that leak. Once a site is known to
+      leak, the logging can then be repeated to figure out under what conditions
+      the leak occurs.
+    </p>
+
+    <p>The way to create this log is to set the environment variables:</p>
+    <pre>  MOZ_LOG=DOMLeak:5,DocumentLeak:5,nsDocShellLeak:5,NodeInfoManagerLeak:5
+  MOZ_LOG_FILE=nspr.log     <i>(or any other filename of your choice)</i></pre>
+    <p>in your shell and then run the program.</p>
+    <ul>
+      <li>
+        In a Windows command prompt, set environment variables with
+        <pre>    set VAR=value</pre>
+      </li>
+      <li>
+        In an sh-based shell such as bash, set environment variables with
+        <pre>    export VAR=value</pre>
+      </li>
+      <li>
+        In a csh-based shell such as tcsh, set environment variables with
+        <pre>    setenv VAR value</pre>
+      </li>
+    </ul>
+
+    <p>
+      Once you have this log from a complete run of the browser (you have to
+      exit; otherwise it will look like everything leaked), you can load this
+      page (be careful not to overwrite the log when starting the browser to
+      load this page) and enter the filename of the log:
+    </p>
+
+    <p><input type="file" id="fileinput" onchange="run()" /></p>
+
+    <p>
+      Then you'll see the output below, which will tell you which of certain
+      core objects leaked and the URLs associated with those objects.
+    </p>
+  </body>
+</html>
diff --git a/tools/leak-gauge/leak-gauge.pl b/tools/leak-gauge/leak-gauge.pl
new file mode 100755
index 0000000000..76ac597df1
--- /dev/null
+++ b/tools/leak-gauge/leak-gauge.pl
@@ -0,0 +1,239 @@
+#!/usr/bin/perl -w
+# vim:sw=4:ts=4:et:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+# $Id: leak-gauge.pl,v 1.8 2008/02/08 19:55:03 dbaron%dbaron.org Exp $
+# This script is designed to help testers isolate and simplify testcases
+# for many classes of leaks (those that involve large graphs of core
+# data structures) in Mozilla-based browsers.  It is designed to print
+# information about what has leaked by processing a log taken while
+# running the browser.  Such a log can be taken over a long session of
+# normal browsing and then the log can be processed to find sites that
+# leak.  Once a site is known to leak, the logging can then be repeated
+# to figure out under what conditions the leak occurs.
+#
+# The way to create this log is to set the environment variables:
+#   MOZ_LOG=DOMLeak:5,DocumentLeak:5,nsDocShellLeak:5,NodeInfoManagerLeak:5
+#   MOZ_LOG_FILE=nspr.log     (or any other filename of your choice)
+# in your shell and then run the program.
+# * In a Windows command prompt, set environment variables with
+#     set VAR=value
+# * In an sh-based shell such as bash, set environment variables with
+#     export VAR=value
+# * In a csh-based shell such as tcsh, set environment variables with
+#     setenv VAR value
+#
+# Then, after you have exited the browser, run this perl script over the
+# log.  Either of the following commands should work:
+#   perl ./path/to/leak-gauge.pl nspr.log
+#   cat nspr.log | perl ./path/to/leak-gauge.pl
+# and it will tell you which of certain core objects leaked and the URLs
+# associated with those objects.
+
+
+# Nobody said I'm not allowed to write my own object system in perl.  No
+# classes here.  Just objects and methods.
+sub call {
+    my $func = shift;
+    my $obj = shift;
+    my $funcref = ${$obj}{$func};
+    &$funcref($obj, @_);
+}
+
+# A hash of objects (keyed by the first word of the line in the log)
+# that have two public methods, handle_line and dump (to be called using
+# call, above), along with any private data they need.
+my $handlers = {
+    "DOMWINDOW" => {
+        count => 0,
+        windows => {},
+        handle_line => sub($$) {
+            my ($self, $line) = @_;
+            my $windows = ${$self}{windows};
+            if ($line =~ /^([0-9a-f]*) (\S*)/) {
+                my ($addr, $verb, $rest) = ($1, $2, $');
+                if ($verb eq "created") {
+                    $rest =~ / outer=([0-9a-f]*)$/ || die "outer expected";
+                    my $outer = $1;
+                    ${$windows}{$addr} = { outer => $1 };
+                    ++${$self}{count};
+                } elsif ($verb eq "destroyed") {
+                    delete ${$windows}{$addr};
+                } elsif ($verb eq "SetNewDocument") {
+                    $rest =~ /^ (.*)$/ || die "URI expected";
+                    my $uri = ($1);
+                    ${${$windows}{$addr}}{$uri} = 1;
+                }
+            }
+        },
+        dump => sub ($) {
+            my ($self) = @_;
+            my $windows = ${$self}{windows};
+            foreach my $addr (keys(%{$windows})) {
+                my $winobj = ${$windows}{$addr};
+                my $outer = delete ${$winobj}{outer};
+                print "Leaked " . ($outer eq "0" ? "outer" : "inner") .
+                      " window $addr " .
+                      ($outer eq "0" ? "" : "(outer $outer) ") .
+                      "at address $addr.\n";
+                foreach my $uri (keys(%{$winobj})) {
+                    print " ... with URI \"$uri\".\n";
+                }
+            }
+        },
+        summary => sub($) {
+            my ($self) = @_;
+            my $windows = ${$self}{windows};
+            print 'Leaked ' . keys(%{$windows}) . ' out of ' .
+                  ${$self}{count} . " DOM Windows\n";
+        }
+    },
+    "DOCUMENT" => {
+        count => 0,
+        docs => {},
+        handle_line => sub($$) {
+            my ($self, $line) = @_;
+            # This doesn't work; I don't have time to figure out why not.
+            # my $docs = ${$self}{docs};
+            my $docs = ${$handlers}{"DOCUMENT"}{docs};
+            if ($line =~ /^([0-9a-f]*) (\S*)/) {
+                my ($addr, $verb, $rest) = ($1, $2, $');
+                if ($verb eq "created") {
+                    ${$docs}{$addr} = {};
+                    ++${$self}{count};
+                } elsif ($verb eq "destroyed") {
+                    delete ${$docs}{$addr};
+                } elsif ($verb eq "ResetToURI" ||
+                         $verb eq "StartDocumentLoad") {
+                    $rest =~ /^ (.*)$/ || die "URI expected";
+                    my $uri = $1;
+                    my $doc_info = ${$docs}{$addr};
+                    ${$doc_info}{$uri} = 1;
+                    if (exists(${$doc_info}{"nim"})) {
+                        ${$doc_info}{"nim"}{$uri} = 1;
+                    }
+                }
+            }
+        },
+        dump => sub ($) {
+            my ($self) = @_;
+            my $docs = ${$self}{docs};
+            foreach my $addr (keys(%{$docs})) {
+                print "Leaked document at address $addr.\n";
+                foreach my $uri (keys(%{${$docs}{$addr}})) {
+                    print " ... with URI \"$uri\".\n" unless $uri eq "nim";
+                }
+            }
+        },
+        summary => sub($) {
+            my ($self) = @_;
+            my $docs = ${$self}{docs};
+            print 'Leaked ' . keys(%{$docs}) . ' out of ' .
+                  ${$self}{count} . " documents\n";
+        }
+    },
+    "DOCSHELL" => {
+        count => 0,
+        shells => {},
+        handle_line => sub($$) {
+            my ($self, $line) = @_;
+            my $shells = ${$self}{shells};
+            if ($line =~ /^([0-9a-f]*) (\S*)/) {
+                my ($addr, $verb, $rest) = ($1, $2, $');
+                if ($verb eq "created") {
+                    ${$shells}{$addr} = {};
+                    ++${$self}{count};
+                } elsif ($verb eq "destroyed") {
+                    delete ${$shells}{$addr};
+                } elsif ($verb eq "InternalLoad" ||
+                         $verb eq "SetCurrentURI") {
+                    $rest =~ /^ (.*)$/ || die "URI expected";
+                    my $uri = $1;
+                    ${${$shells}{$addr}}{$uri} = 1;
+                }
+            }
+        },
+        dump => sub ($) {
+            my ($self) = @_;
+            my $shells = ${$self}{shells};
+            foreach my $addr (keys(%{$shells})) {
+                print "Leaked docshell at address $addr.\n";
+                foreach my $uri (keys(%{${$shells}{$addr}})) {
+                    print " ... which loaded URI \"$uri\".\n";
+                }
+            }
+        },
+        summary => sub($) {
+            my ($self) = @_;
+            my $shells = ${$self}{shells};
+            print 'Leaked ' . keys(%{$shells}) . ' out of ' .
+                  ${$self}{count} . " docshells\n";
+        }
+    },
+    "NODEINFOMANAGER" => {
+        count => 0,
+        nims => {},
+        handle_line => sub($$) {
+            my ($self, $line) = @_;
+            my $nims = ${$self}{nims};
+            if ($line =~ /^([0-9a-f]*) (\S*)/) {
+                my ($addr, $verb, $rest) = ($1, $2, $');
+                if ($verb eq "created") {
+                    ${$nims}{$addr} = {};
+                    ++${$self}{count};
+                } elsif ($verb eq "destroyed") {
+                    delete ${$nims}{$addr};
+                } elsif ($verb eq "Init") {
+                    $rest =~ /^ document=(.*)$/ ||
+                        die "document pointer expected";
+                    my $doc = $1;
+                    if ($doc ne "0") {
+                        my $nim_info = ${$nims}{$addr};
+                        my $doc_info = ${$handlers}{"DOCUMENT"}{docs}{$doc};
+                        foreach my $uri (keys(%{$doc_info})) {
+                            ${$nim_info}{$uri} = 1;
+                        }
+                        ${$doc_info}{"nim"} = $nim_info;
+                    }
+                }
+            }
+        },
+        dump => sub ($) {
+            my ($self) = @_;
+            my $nims = ${$self}{nims};
+            foreach my $addr (keys(%{$nims})) {
+                print "Leaked content nodes associated with node info manager at address $addr.\n";
+                foreach my $uri (keys(%{${$nims}{$addr}})) {
+                    print " ... with document URI \"$uri\".\n";
+                }
+            }
+        },
+        summary => sub($) {
+            my ($self) = @_;
+            my $nims = ${$self}{nims};
+            print 'Leaked content nodes within ' . keys(%{$nims}) . ' out of ' .
+                  ${$self}{count} . " documents\n";
+        }
+    }
+};
+
+while (<>) {
+    # strip off initial "-", thread id, and thread pointer; separate
+    # first word and rest
+    if (/^\-?[0-9]*\[[0-9a-f]*\]: (\S*) ([^\n\r]*)[\n\r]*$/) {
+        my ($handler, $data) = ($1, $2);
+        if (defined(${$handlers}{$handler})) {
+            call("handle_line", ${$handlers}{$handler}, $data);
+        }
+    }
+}
+
+foreach my $key (keys(%{$handlers})) {
+    call("dump", ${$handlers}{$key});
+}
+print "Summary:\n";
+foreach my $key (keys(%{$handlers})) {
+    call("summary", ${$handlers}{$key});
+}
author	Daniel Baumann <daniel.baumann@progress-linux.org>	2024-04-07 19:33:14 +0000
committer	Daniel Baumann <daniel.baumann@progress-linux.org>	2024-04-07 19:33:14 +0000
commit	36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree	105e8c98ddea1c1e4784a60a5a6410fa416be2de /tools/leak-gauge
parent	Initial commit. (diff)
download	firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip