Firefox 84.0 firefox84
authorWolfgang Rosenauer <wr@rosenauer.org>
Sun, 27 Dec 2020 10:49:49 +0100
branchfirefox84
changeset 1152 4cfe46c9a944
parent 1151 8df86bf11fc1
child 1153 fdd746757dda
Firefox 84.0
MozillaFirefox/MozillaFirefox.changes
MozillaFirefox/MozillaFirefox.spec
MozillaFirefox/mozilla-fix-top-level-asm.patch
MozillaFirefox/mozilla-pgo.patch
MozillaFirefox/revert-795c8762b16b.patch
MozillaFirefox/tar_stamps
firefox-kde.patch
mozilla-bmo1512162.patch
mozilla-bmo1568145.patch
mozilla-fix-top-level-asm.patch
mozilla-kde.patch
mozilla-pgo.patch
mozilla-pipewire-0-3.patch
mozilla-reduce-rust-debuginfo.patch
revert-795c8762b16b.patch
series
--- a/MozillaFirefox/MozillaFirefox.changes	Thu Dec 10 14:36:59 2020 +0100
+++ b/MozillaFirefox/MozillaFirefox.changes	Sun Dec 27 10:49:49 2020 +0100
@@ -1,4 +1,55 @@
 -------------------------------------------------------------------
+Sun Dec 13 18:18:58 UTC 2020 - Wolfgang Rosenauer <wr@rosenauer.org>
+
+- Mozilla Firefox 84.0
+  * Firefox 84 is the final release to support Adobe Flash
+  * WebRender is enabled by default when run on GNOME-based X11
+    Linux desktops
+  MFSA 2020-54 (bsc#1180039))
+  * CVE-2020-16042 (bmo#1679003)
+    Operations on a BigInt could have caused uninitialized memory
+    to be exposed
+  * CVE-2020-26971 (bmo#1663466)
+    Heap buffer overflow in WebGL
+  * CVE-2020-26972 (bmo#1671382)
+    Use-After-Free in WebGL
+  * CVE-2020-26973 (bmo#1680084)
+    CSS Sanitizer performed incorrect sanitization
+  * CVE-2020-26974 (bmo#1681022)
+    Incorrect cast of StyleGenericFlexBasis resulted in a heap
+    use-after-free
+  * CVE-2020-26975 (bmo#1661071)
+    Malicious applications on Android could have induced Firefox
+    for Android into sending arbitrary attacker-specified headers
+  * CVE-2020-26976 (bmo#1674343)
+    HTTPS pages could have been intercepted by a registered
+    service worker when they should not have been
+  * CVE-2020-26977 (bmo#1676311)
+    URL spoofing via unresponsive port in Firefox for Android
+  * CVE-2020-26978 (bmo#1677047)
+    Internal network hosts could have been probed by a malicious
+    webpage
+  * CVE-2020-26979 (bmo#1641287, bmo#1673299)
+    When entering an address in the address or search bars, a
+    website could have redirected the user before they were
+    navigated to the intended url
+  * CVE-2020-35111 (bmo#1657916)
+    The proxy.onRequest API did not catch view-source URLs
+  * CVE-2020-35112 (bmo#1661365)
+    Opening an extension-less download may have inadvertently
+    launched an executable instead
+  * CVE-2020-35113 (bmo#1664831, bmo#1673589)
+    Memory safety bugs fixed in Firefox 84 and Firefox ESR 78.6
+  * CVE-2020-35114 (bmo#1607449, bmo#1640416, bmo#1656459,
+    bmo#1669914, bmo#1673567)
+    Memory safety bugs fixed in Firefox 84
+- requires
+  NSS >= 3.59
+  rust >= 1.44
+  rust-cbindgen >= 0.15.0
+- remove revert-795c8762b16b.patch and replace with mozilla-pgo.patch
+
+-------------------------------------------------------------------
 Sat Nov 21 08:12:17 UTC 2020 - Kirill Kirillov <kkirill@opensuse.org>
 
 - Add/Enable GNOME search provider
--- a/MozillaFirefox/MozillaFirefox.spec	Thu Dec 10 14:36:59 2020 +0100
+++ b/MozillaFirefox/MozillaFirefox.spec	Sun Dec 27 10:49:49 2020 +0100
@@ -29,9 +29,9 @@
 # orig_suffix b3
 # major 69
 # mainver %major.99
-%define major          83
+%define major          84
 %define mainver        %major.0
-%define orig_version   83.0
+%define orig_version   84.0
 %define orig_suffix    %{nil}
 %define update_channel release
 %define branding       1
@@ -92,7 +92,7 @@
 %else
 BuildRequires:  gcc-c++
 %endif
-BuildRequires:  cargo >= 1.43
+BuildRequires:  cargo >= 1.44
 BuildRequires:  ccache
 BuildRequires:  libXcomposite-devel
 BuildRequires:  libcurl-devel
@@ -101,7 +101,7 @@
 BuildRequires:  libproxy-devel
 BuildRequires:  makeinfo
 BuildRequires:  mozilla-nspr-devel >= 4.29
-BuildRequires:  mozilla-nss-devel >= 3.58
+BuildRequires:  mozilla-nss-devel >= 3.59
 BuildRequires:  nasm >= 2.14
 BuildRequires:  nodejs10 >= 10.22.1
 %if 0%{?sle_version} >= 120000 && 0%{?sle_version} < 150000
@@ -111,8 +111,8 @@
 BuildRequires:  python3 >= 3.5
 BuildRequires:  python3-devel
 %endif
-BuildRequires:  rust >= 1.43
-BuildRequires:  rust-cbindgen >= 0.14.3
+BuildRequires:  rust >= 1.44
+BuildRequires:  rust-cbindgen >= 0.15.0
 BuildRequires:  unzip
 BuildRequires:  update-desktop-files
 BuildRequires:  xorg-x11-libXt-devel
@@ -195,6 +195,7 @@
 Patch7:         mozilla-fix-aarch64-libopus.patch
 Patch8:         mozilla-disable-wasm-emulate-arm-unaligned-fp-access.patch
 Patch9:         mozilla-s390-context.patch
+Patch10:        mozilla-pgo.patch
 Patch11:        mozilla-reduce-rust-debuginfo.patch
 Patch13:        mozilla-bmo1005535.patch
 Patch14:        mozilla-bmo1568145.patch
@@ -212,7 +213,6 @@
 Patch26:        mozilla-bmo1626236.patch
 Patch27:        mozilla-s390x-skia-gradient.patch
 Patch28:        mozilla-libavcodec58_91.patch
-Patch29:        revert-795c8762b16b.patch
 # Firefox/browser
 Patch101:       firefox-kde.patch
 Patch102:       firefox-branded-icons.patch
@@ -335,6 +335,7 @@
 %patch7 -p1
 %patch8 -p1
 %patch9 -p1
+%patch10 -p1
 %patch11 -p1
 %patch13 -p1
 %patch14 -p1
@@ -354,7 +355,6 @@
 %patch26 -p1
 %patch27 -p1
 %patch28 -p1
-%patch29 -p1 -R
 # Firefox
 %patch101 -p1
 %patch102 -p1
@@ -536,7 +536,6 @@
 
 # build additional locales
 %if %localize
-mkdir -p %{buildroot}%{progdir}/browser/extensions
 truncate -s 0 %{_tmppath}/translations.{common,other}
 # langpack-build can not be done in parallel easily (see https://bugzilla.mozilla.org/show_bug.cgi?id=1660943)
 # Therefore, we have to have a separate obj-dir for each language
@@ -562,6 +561,7 @@
 %else
 %define njobs 0%{?jobs:%jobs}
 %endif
+mkdir -p $RPM_BUILD_DIR/langpacks_artifacts/
 sed -r '/^(ja-JP-mac|ga-IE|en-US|)$/d;s/ .*$//' $RPM_BUILD_DIR/%{srcname}-%{orig_version}/browser/locales/shipped-locales \
     | xargs -n 1 %{?njobs:-P %njobs} -I {} /bin/sh -c '
         locale=$1
@@ -571,10 +571,7 @@
         # nsinstall is needed for langpack-build. It is already built by `./mach build`, but building it again is very fast
         ./mach build config/nsinstall langpack-$locale
         cp -L ../obj_$locale/dist/linux-*/xpi/firefox-%{orig_version}.$locale.langpack.xpi \
-            %{buildroot}%{progdir}/browser/extensions/langpack-$locale@firefox.mozilla.org.xpi
-        # remove prefs, profile defaults, and hyphenation from langpack
-        #rm -rf %{buildroot}%{progdir}/browser/extensions/langpack-$locale@firefox.mozilla.org/defaults
-        #rm -rf %{buildroot}%{progdir}/browser/extensions/langpack-$locale@firefox.mozilla.org/hyphenation
+            $RPM_BUILD_DIR/langpacks_artifacts/langpack-$locale@firefox.mozilla.org.xpi
         # check against the fixed common list and sort into the right filelist
         _matched=0
         for _match in ar ca cs da de el en-GB es-AR es-CL es-ES fi fr hu it ja ko nb-NO nl pl pt-BR pt-PT ru sv-SE zh-CN zh-TW; do
@@ -604,6 +601,8 @@
 # copy tree into RPM_BUILD_ROOT
 mkdir -p %{buildroot}%{progdir}
 cp -rf $RPM_BUILD_DIR/obj/dist/%{srcname}/* %{buildroot}%{progdir}
+mkdir -p %{buildroot}%{progdir}/browser/extensions
+cp -rf $RPM_BUILD_DIR/langpacks_artifacts/* %{buildroot}%{progdir}/browser/extensions/
 mkdir -p %{buildroot}%{progdir}/distribution/extensions
 mkdir -p %{buildroot}%{progdir}/browser/defaults/preferences/
 # renaming executables (for regular vs. ESR)
--- a/MozillaFirefox/mozilla-fix-top-level-asm.patch	Thu Dec 10 14:36:59 2020 +0100
+++ b/MozillaFirefox/mozilla-fix-top-level-asm.patch	Sun Dec 27 10:49:49 2020 +0100
@@ -1,42 +1,1 @@
-From 91bb79836ee274855393bdf6ab10e24899b1b349 Mon Sep 17 00:00:00 2001
-From: Martin Liska <mliska@suse.cz>
-Date: Fri, 17 May 2019 14:41:35 +0200
-Subject: [PATCH] Fix top-level asm issue.
-
----
- security/sandbox/linux/moz.build | 5 ++++-
- 1 file changed, 4 insertions(+), 1 deletion(-)
-
-diff --git a/security/sandbox/linux/moz.build b/security/sandbox/linux/moz.build
-index aae85843e9f6..208368dfd189 100644
---- a/security/sandbox/linux/moz.build
-+++ b/security/sandbox/linux/moz.build
-@@ -61,7 +61,6 @@ UNIFIED_SOURCES += [
-     '../chromium/sandbox/linux/bpf_dsl/policy_compiler.cc',
-     '../chromium/sandbox/linux/bpf_dsl/syscall_set.cc',
-     '../chromium/sandbox/linux/seccomp-bpf/die.cc',
--    '../chromium/sandbox/linux/seccomp-bpf/syscall.cc',
-     'broker/SandboxBrokerCommon.cpp',
-     'Sandbox.cpp',
-     'SandboxBrokerClient.cpp',
-@@ -77,6 +76,7 @@ UNIFIED_SOURCES += [
- SOURCES += [
-     '../chromium/base/strings/safe_sprintf.cc',
-     '../chromium/base/third_party/icu/icu_utf.cc',
-+    '../chromium/sandbox/linux/seccomp-bpf/syscall.cc',
-     '../chromium/sandbox/linux/seccomp-bpf/trap.cc',
-     '../chromium/sandbox/linux/services/syscall_wrappers.cc',
- ]
-@@ -96,6 +96,9 @@ if CONFIG['CC_TYPE'] in ('clang', 'gcc'):
-     SOURCES['../chromium/sandbox/linux/services/syscall_wrappers.cc'].flags += [
-         '-Wno-empty-body',
-     ]
-+    SOURCES['../chromium/sandbox/linux/seccomp-bpf/syscall.cc'].flags += [
-+        '-fno-lto'
-+    ]
- 
- # gcc lto likes to put the top level asm in syscall.cc in a different partition
- # from the function using it which breaks the build.  Work around that by
--- 
-2.23.0
-
+../mozilla-fix-top-level-asm.patch
\ No newline at end of file
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MozillaFirefox/mozilla-pgo.patch	Sun Dec 27 10:49:49 2020 +0100
@@ -0,0 +1,1 @@
+../mozilla-pgo.patch
\ No newline at end of file
--- a/MozillaFirefox/revert-795c8762b16b.patch	Thu Dec 10 14:36:59 2020 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,1 +0,0 @@
-../revert-795c8762b16b.patch
\ No newline at end of file
--- a/MozillaFirefox/tar_stamps	Thu Dec 10 14:36:59 2020 +0100
+++ b/MozillaFirefox/tar_stamps	Sun Dec 27 10:49:49 2020 +0100
@@ -1,11 +1,11 @@
 PRODUCT="firefox"
 CHANNEL="release"
-VERSION="83.0"
+VERSION="84.0"
 VERSION_SUFFIX=""
-PREV_VERSION="82.0.3"
+PREV_VERSION="83.0"
 PREV_VERSION_SUFFIX=""
 #SKIP_LOCALES="" # Uncomment to skip l10n and compare-locales-generation
 
 RELEASE_REPO="https://hg.mozilla.org/releases/mozilla-release"
-RELEASE_TAG="55359edc5d1cb8addecf9d2e7151782da543f67b"
-RELEASE_TIMESTAMP="20201112153044"
+RELEASE_TAG="98507f230e7442065b287ced065ac77d4d8ea35d"
+RELEASE_TIMESTAMP="20201211215739"
--- a/firefox-kde.patch	Thu Dec 10 14:36:59 2020 +0100
+++ b/firefox-kde.patch	Sun Dec 27 10:49:49 2020 +0100
@@ -3,7 +3,7 @@
 # Date 1559300151 -7200
 #      Fri May 31 12:55:51 2019 +0200
 # Node ID 54d41b0033b8d649d842a1f862c6fed8b9874dec
-# Parent  3804871eac4171b99e9049dbc881b5304b5ac207
+# Parent  8310cc1a162e9dd066a20f6a3bbd271993b67fc6
 How to apply this patch:
 1. Import and apply it
 2. cp browser/base/content/browser.xul browser/base/content/browser-kde.xul
@@ -14,7 +14,7 @@
 diff --git a/browser/components/preferences/main.js b/browser/components/preferences/main.js
 --- a/browser/components/preferences/main.js
 +++ b/browser/components/preferences/main.js
-@@ -335,16 +335,23 @@ var gMainPane = {
+@@ -347,16 +347,23 @@ var gMainPane = {
          }, backoffTimes[this._backoffIndex + 1 < backoffTimes.length ? this._backoffIndex++ : backoffTimes.length - 1]);
        };
  
@@ -38,7 +38,7 @@
      );
      let performanceSettingsUrl =
        Services.urlFormatter.formatURLPref("app.support.baseURL") +
-@@ -1291,16 +1298,27 @@ var gMainPane = {
+@@ -1326,16 +1333,27 @@ var gMainPane = {
        this._backoffIndex = 0;
  
        let shellSvc = getShellService();
@@ -69,24 +69,24 @@
 diff --git a/browser/components/shell/moz.build b/browser/components/shell/moz.build
 --- a/browser/components/shell/moz.build
 +++ b/browser/components/shell/moz.build
-@@ -34,16 +34,18 @@ if CONFIG['MOZ_WIDGET_TOOLKIT'] == 'coco
+@@ -32,16 +32,18 @@ if CONFIG["MOZ_WIDGET_TOOLKIT"] == "coco
      ]
- elif CONFIG['MOZ_WIDGET_TOOLKIT'] == 'gtk':
+ elif CONFIG["MOZ_WIDGET_TOOLKIT"] == "gtk":
      XPIDL_SOURCES += [
-         'nsIGNOMEShellService.idl',
+         "nsIGNOMEShellService.idl",
      ]
  
      SOURCES += [
-         'nsGNOMEShellService.cpp',
-+        'nsKDEShellService.cpp',
-+        'nsUnixShellService.cpp',
+         "nsGNOMEShellService.cpp",
++        "nsKDEShellService.cpp",
++        "nsUnixShellService.cpp",
      ]
-     if CONFIG['MOZ_ENABLE_DBUS']:
+     if CONFIG["MOZ_ENABLE_DBUS"]:
          SOURCES += [
-             'nsGNOMEShellDBusHelper.cpp',
-             'nsGNOMEShellSearchProvider.cpp',
+             "nsGNOMEShellDBusHelper.cpp",
+             "nsGNOMEShellSearchProvider.cpp",
          ]
-         include('/ipc/chromium/chromium-config.mozbuild')
+         include("/ipc/chromium/chromium-config.mozbuild")
  
 diff --git a/browser/components/shell/nsKDEShellService.cpp b/browser/components/shell/nsKDEShellService.cpp
 new file mode 100644
--- a/mozilla-bmo1512162.patch	Thu Dec 10 14:36:59 2020 +0100
+++ b/mozilla-bmo1512162.patch	Sun Dec 27 10:49:49 2020 +0100
@@ -1,12 +1,12 @@
 # HG changeset patch
-# Parent  e42a036a5533ea6a60ebc22fd2a150c384d42fda
+# Parent  f9f5af4c88f2f3172a4f30d7e42bd2131bf24146
 This fixes a broken build for gcc < 9 on ppc64le.
 This patch can be removed for newer gcc-versions.
 
 diff --git a/js/xpconnect/src/XPCWrappedNative.cpp b/js/xpconnect/src/XPCWrappedNative.cpp
 --- a/js/xpconnect/src/XPCWrappedNative.cpp
 +++ b/js/xpconnect/src/XPCWrappedNative.cpp
-@@ -1080,17 +1080,21 @@ class MOZ_STACK_CLASS CallMethodHelper f
+@@ -1072,17 +1072,21 @@ class MOZ_STACK_CLASS CallMethodHelper f
                                                 uint32_t* result);
  
    MOZ_ALWAYS_INLINE bool GetInterfaceTypeFromParam(const nsXPTType& type,
@@ -29,7 +29,7 @@
        paramIndex += 1;
      }
      if (paramIndex >= mOptArgcIndex) {
-@@ -1127,17 +1131,21 @@ class MOZ_STACK_CLASS CallMethodHelper f
+@@ -1119,17 +1123,21 @@ class MOZ_STACK_CLASS CallMethodHelper f
  
    {
      // Success checked later.
--- a/mozilla-bmo1568145.patch	Thu Dec 10 14:36:59 2020 +0100
+++ b/mozilla-bmo1568145.patch	Sun Dec 27 10:49:49 2020 +0100
@@ -28,12 +28,12 @@
      ManifestLocale,
      parse_manifest,
  )
-@@ -94,17 +95,17 @@ def get_dt_from_hg(path):
+@@ -100,17 +101,17 @@ def get_dt_from_hg(path):
  #    ts == "20170914215617"
  ###
  def get_timestamp_for_locale(path):
      dt = None
-     if os.path.isdir(os.path.join(path, '.hg')):
+     if os.path.isdir(os.path.join(path, ".hg")):
          dt = get_dt_from_hg(path)
  
      if dt is None:
--- a/mozilla-fix-top-level-asm.patch	Thu Dec 10 14:36:59 2020 +0100
+++ b/mozilla-fix-top-level-asm.patch	Sun Dec 27 10:49:49 2020 +0100
@@ -10,48 +10,48 @@
 diff --git a/security/sandbox/linux/moz.build b/security/sandbox/linux/moz.build
 --- a/security/sandbox/linux/moz.build
 +++ b/security/sandbox/linux/moz.build
-@@ -56,32 +56,32 @@ UNIFIED_SOURCES += [
-     '../chromium/base/time/time_now_posix.cc',
-     '../chromium/sandbox/linux/bpf_dsl/bpf_dsl.cc',
-     '../chromium/sandbox/linux/bpf_dsl/codegen.cc',
-     '../chromium/sandbox/linux/bpf_dsl/dump_bpf.cc',
-     '../chromium/sandbox/linux/bpf_dsl/policy.cc',
-     '../chromium/sandbox/linux/bpf_dsl/policy_compiler.cc',
-     '../chromium/sandbox/linux/bpf_dsl/syscall_set.cc',
-     '../chromium/sandbox/linux/seccomp-bpf/die.cc',
--    '../chromium/sandbox/linux/seccomp-bpf/syscall.cc',
-     'broker/SandboxBrokerCommon.cpp',
-     'Sandbox.cpp',
-     'SandboxBrokerClient.cpp',
-     'SandboxFilter.cpp',
-     'SandboxFilterUtil.cpp',
-     'SandboxHooks.cpp',
-     'SandboxInfo.cpp',
-     'SandboxLogging.cpp',
-     'SandboxOpenedFiles.cpp',
-     'SandboxReporterClient.cpp',
+@@ -66,32 +66,32 @@ UNIFIED_SOURCES += [
+     "../chromium/base/time/time_now_posix.cc",
+     "../chromium/sandbox/linux/bpf_dsl/bpf_dsl.cc",
+     "../chromium/sandbox/linux/bpf_dsl/codegen.cc",
+     "../chromium/sandbox/linux/bpf_dsl/dump_bpf.cc",
+     "../chromium/sandbox/linux/bpf_dsl/policy.cc",
+     "../chromium/sandbox/linux/bpf_dsl/policy_compiler.cc",
+     "../chromium/sandbox/linux/bpf_dsl/syscall_set.cc",
+     "../chromium/sandbox/linux/seccomp-bpf/die.cc",
+-    "../chromium/sandbox/linux/seccomp-bpf/syscall.cc",
+     "broker/SandboxBrokerCommon.cpp",
+     "Sandbox.cpp",
+     "SandboxBrokerClient.cpp",
+     "SandboxFilter.cpp",
+     "SandboxFilterUtil.cpp",
+     "SandboxHooks.cpp",
+     "SandboxInfo.cpp",
+     "SandboxLogging.cpp",
+     "SandboxOpenedFiles.cpp",
+     "SandboxReporterClient.cpp",
  ]
  
  SOURCES += [
-     '../chromium/base/strings/safe_sprintf.cc',
-     '../chromium/base/third_party/icu/icu_utf.cc',
-+    '../chromium/sandbox/linux/seccomp-bpf/syscall.cc',
-     '../chromium/sandbox/linux/seccomp-bpf/trap.cc',
-     '../chromium/sandbox/linux/services/syscall_wrappers.cc',
+     "../chromium/base/strings/safe_sprintf.cc",
+     "../chromium/base/third_party/icu/icu_utf.cc",
++    "../chromium/sandbox/linux/seccomp-bpf/syscall.cc",
+     "../chromium/sandbox/linux/seccomp-bpf/trap.cc",
+     "../chromium/sandbox/linux/services/syscall_wrappers.cc",
  ]
  
  # This copy of SafeSPrintf doesn't need to avoid the Chromium logging
  # dependency like the one in libxul does, but this way the behavior is
  # consistent.  See also the comment in SandboxLogging.h.
- SOURCES['../chromium/base/strings/safe_sprintf.cc'].flags += ['-DNDEBUG']
-@@ -91,16 +91,19 @@ if CONFIG['CC_TYPE'] in ('clang', 'gcc')
-     SOURCES['../chromium/base/third_party/icu/icu_utf.cc'].flags += ['-Wno-implicit-fallthrough']
-     SOURCES['../chromium/sandbox/linux/seccomp-bpf/trap.cc'].flags += ['-Wno-unreachable-code-return']
+ SOURCES["../chromium/base/strings/safe_sprintf.cc"].flags += ["-DNDEBUG"]
+@@ -105,16 +105,19 @@ if CONFIG["CC_TYPE"] in ("clang", "gcc")
+         "-Wno-unreachable-code-return"
+     ]
  
- if CONFIG['CC_TYPE'] in ('clang', 'gcc'):
-     CXXFLAGS += ['-Wno-shadow']
-     SOURCES['../chromium/sandbox/linux/services/syscall_wrappers.cc'].flags += [
-         '-Wno-empty-body',
+ if CONFIG["CC_TYPE"] in ("clang", "gcc"):
+     CXXFLAGS += ["-Wno-shadow"]
+     SOURCES["../chromium/sandbox/linux/services/syscall_wrappers.cc"].flags += [
+         "-Wno-empty-body",
      ]
 +    SOURCES['../chromium/sandbox/linux/seccomp-bpf/syscall.cc'].flags += [
 +        '-fno-lto'
@@ -60,7 +60,7 @@
  # gcc lto likes to put the top level asm in syscall.cc in a different partition
  # from the function using it which breaks the build.  Work around that by
  # forcing there to be only one partition.
- for f in CONFIG['OS_CXXFLAGS']:
-     if f.startswith('-flto') and CONFIG['CC_TYPE'] != 'clang':
-         LDFLAGS += ['--param lto-partitions=1']
+ for f in CONFIG["OS_CXXFLAGS"]:
+     if f.startswith("-flto") and CONFIG["CC_TYPE"] != "clang":
+         LDFLAGS += ["--param lto-partitions=1"]
  
--- a/mozilla-kde.patch	Thu Dec 10 14:36:59 2020 +0100
+++ b/mozilla-kde.patch	Sun Dec 27 10:49:49 2020 +0100
@@ -3,7 +3,7 @@
 # Date 1559294891 -7200
 #      Fri May 31 11:28:11 2019 +0200
 # Node ID c2aa7198fb925e7fde96abf65b6f68b9b755f112
-# Parent  e89d21ead66fbb34b6349edda42748a3ad9e6136
+# Parent  4b9aa59b15c3247d263cc32804786b3a6bff7912
 Description: Add KDE integration to Firefox (toolkit parts)
 Author: Wolfgang Rosenauer <wolfgang@rosenauer.org>
 Author: Lubos Lunak <lunak@suse.com>
@@ -13,7 +13,7 @@
 diff --git a/modules/libpref/Preferences.cpp b/modules/libpref/Preferences.cpp
 --- a/modules/libpref/Preferences.cpp
 +++ b/modules/libpref/Preferences.cpp
-@@ -83,16 +83,17 @@
+@@ -82,16 +82,17 @@
  #include "nsXPCOM.h"
  #include "nsXULAppAPI.h"
  #include "nsZipArchive.h"
@@ -31,7 +31,7 @@
  #ifdef MOZ_MEMORY
  #  include "mozmemory.h"
  #endif
-@@ -4536,25 +4537,37 @@ nsresult Preferences::InitInitialObjects
+@@ -4459,25 +4460,37 @@ nsresult Preferences::InitInitialObjects
    // application pref files for backwards compatibility.
    static const char* specialFiles[] = {
  #if defined(XP_MACOSX)
@@ -69,7 +69,7 @@
  
    // Load jar:$app/omni.jar!/defaults/preferences/*.js
    // or jar:$gre/omni.jar!/defaults/preferences/*.js.
-@@ -4600,17 +4613,17 @@ nsresult Preferences::InitInitialObjects
+@@ -4523,17 +4536,17 @@ nsresult Preferences::InitInitialObjects
        }
  
        nsCOMPtr<nsIFile> path = do_QueryInterface(elem);
@@ -91,13 +91,13 @@
 diff --git a/modules/libpref/moz.build b/modules/libpref/moz.build
 --- a/modules/libpref/moz.build
 +++ b/modules/libpref/moz.build
-@@ -118,16 +118,20 @@ EXPORTS.mozilla += [
+@@ -116,16 +116,20 @@ EXPORTS.mozilla += [
  ]
- EXPORTS.mozilla += sorted(['!' + g for g in gen_h])
+ EXPORTS.mozilla += sorted(["!" + g for g in gen_h])
  
  UNIFIED_SOURCES += [
-     'Preferences.cpp',
-     'SharedPrefMap.cpp',
+     "Preferences.cpp",
+     "SharedPrefMap.cpp",
  ]
  
 +LOCAL_INCLUDES += [
@@ -106,52 +106,52 @@
 +
  gen_all_tuple = tuple(gen_h + gen_cpp + gen_rs)
  
- GeneratedFile(*gen_all_tuple, script='init/generate_static_pref_list.py',
-               entry_point='emit_code', inputs=['init/StaticPrefList.yaml'])
- 
- PYTHON_UNITTEST_MANIFESTS += [
-     'test/python.ini',
- ]
+ GeneratedFile(
+     *gen_all_tuple,
+     script="init/generate_static_pref_list.py",
+     entry_point="emit_code",
+     inputs=["init/StaticPrefList.yaml"]
+ )
 diff --git a/python/mozbuild/mozpack/chrome/flags.py b/python/mozbuild/mozpack/chrome/flags.py
 --- a/python/mozbuild/mozpack/chrome/flags.py
 +++ b/python/mozbuild/mozpack/chrome/flags.py
-@@ -227,16 +227,17 @@ class Flags(OrderedDict):
-         'contentaccessible': Flag,
-         'os': StringFlag,
-         'osversion': VersionFlag,
-         'abi': StringFlag,
-         'platform': Flag,
-         'xpcnativewrappers': Flag,
-         'tablet': Flag,
-         'process': StringFlag,
-+        'desktop': StringFlag,
+@@ -228,16 +228,17 @@ class Flags(OrderedDict):
+         "contentaccessible": Flag,
+         "os": StringFlag,
+         "osversion": VersionFlag,
+         "abi": StringFlag,
+         "platform": Flag,
+         "xpcnativewrappers": Flag,
+         "tablet": Flag,
+         "process": StringFlag,
++	"desktop": StringFlag,
      }
-     RE = re.compile(r'([!<>=]+)')
+     RE = re.compile(r"([!<>=]+)")
  
      def __init__(self, *flags):
-         '''
+         """
          Initialize a set of flags given in string form.
             flags = Flags('contentaccessible=yes', 'appversion>=3.5')
-         '''
+         """
 diff --git a/python/mozbuild/mozpack/chrome/manifest.py b/python/mozbuild/mozpack/chrome/manifest.py
 --- a/python/mozbuild/mozpack/chrome/manifest.py
 +++ b/python/mozbuild/mozpack/chrome/manifest.py
-@@ -37,16 +37,17 @@ class ManifestEntry(object):
-         'platformversion',
-         'os',
-         'osversion',
-         'abi',
-         'xpcnativewrappers',
-         'tablet',
-         'process',
-         'contentaccessible',
-+	'desktop',
+@@ -38,16 +38,17 @@ class ManifestEntry(object):
+         "platformversion",
+         "os",
+         "osversion",
+         "abi",
+         "xpcnativewrappers",
+         "tablet",
+         "process",
+         "contentaccessible",
++        "desktop",
      ]
  
      def __init__(self, base, *flags):
-         '''
+         """
          Initialize a manifest entry with the given base path and flags.
-         '''
+         """
          self.base = base
          self.flags = Flags(*flags)
 diff --git a/toolkit/components/downloads/moz.build b/toolkit/components/downloads/moz.build
@@ -159,23 +159,23 @@
 +++ b/toolkit/components/downloads/moz.build
 @@ -45,10 +45,14 @@ XPCOM_MANIFESTS += [
  
- if CONFIG['MOZ_PLACES']:
+ if CONFIG["MOZ_PLACES"]:
      EXTRA_JS_MODULES += [
-         'DownloadHistory.jsm',
+         "DownloadHistory.jsm",
      ]
  
- FINAL_LIBRARY = 'xul'
+ FINAL_LIBRARY = "xul"
  
 +LOCAL_INCLUDES += [
 +    '/toolkit/xre'
 +]
 +
- with Files('**'):
-     BUG_COMPONENT = ('Toolkit', 'Downloads API')
+ with Files("**"):
+     BUG_COMPONENT = ("Toolkit", "Downloads API")
 diff --git a/toolkit/mozapps/downloads/HelperAppDlg.jsm b/toolkit/mozapps/downloads/HelperAppDlg.jsm
 --- a/toolkit/mozapps/downloads/HelperAppDlg.jsm
 +++ b/toolkit/mozapps/downloads/HelperAppDlg.jsm
-@@ -1239,36 +1239,66 @@ nsUnknownContentTypeDialog.prototype = {
+@@ -1243,36 +1243,66 @@ nsUnknownContentTypeDialog.prototype = {
          params.handlerApp &&
          params.handlerApp.executable &&
          params.handlerApp.executable.isFile()
@@ -356,26 +356,26 @@
 diff --git a/toolkit/xre/moz.build b/toolkit/xre/moz.build
 --- a/toolkit/xre/moz.build
 +++ b/toolkit/xre/moz.build
-@@ -90,17 +90,19 @@ elif CONFIG['MOZ_WIDGET_TOOLKIT'] == 'co
-         '../components/printingui',
+@@ -91,17 +91,19 @@ elif CONFIG["MOZ_WIDGET_TOOLKIT"] == "co
+         "../components/printingui",
      ]
- elif CONFIG['MOZ_WIDGET_TOOLKIT'] == 'uikit':
+ elif CONFIG["MOZ_WIDGET_TOOLKIT"] == "uikit":
      UNIFIED_SOURCES += [
-         'nsNativeAppSupportDefault.cpp',
-         'UIKitDirProvider.mm',
+         "nsNativeAppSupportDefault.cpp",
+         "UIKitDirProvider.mm",
      ]
- elif CONFIG['MOZ_WIDGET_TOOLKIT'] == 'gtk':
+ elif CONFIG["MOZ_WIDGET_TOOLKIT"] == "gtk":
 +    EXPORTS += ['nsKDEUtils.h']
      UNIFIED_SOURCES += [
-+        'nsKDEUtils.cpp',
-         'nsNativeAppSupportUnix.cpp',
++        "nsKDEUtils.cpp",
+         "nsNativeAppSupportUnix.cpp",
      ]
  else:
      UNIFIED_SOURCES += [
-         'nsNativeAppSupportDefault.cpp',
+         "nsNativeAppSupportDefault.cpp",
      ]
  
- if CONFIG['MOZ_HAS_REMOTE']:
+ if CONFIG["MOZ_HAS_REMOTE"]:
 diff --git a/toolkit/xre/nsKDEUtils.cpp b/toolkit/xre/nsKDEUtils.cpp
 new file mode 100644
 --- /dev/null
@@ -841,44 +841,44 @@
 diff --git a/uriloader/exthandler/moz.build b/uriloader/exthandler/moz.build
 --- a/uriloader/exthandler/moz.build
 +++ b/uriloader/exthandler/moz.build
-@@ -85,17 +85,19 @@ else:
+@@ -86,17 +86,19 @@ else:
      SOURCES += [
-         osdir + '/nsOSHelperAppService.cpp',
+         osdir + "/nsOSHelperAppService.cpp",
      ]
-     if CONFIG['CC_TYPE'] in ('clang', 'gcc'):
-         CXXFLAGS += ['-Wno-error=shadow']
+     if CONFIG["CC_TYPE"] in ("clang", "gcc"):
+         CXXFLAGS += ["-Wno-error=shadow"]
  
- if CONFIG['MOZ_WIDGET_TOOLKIT'] == 'gtk':
+ if CONFIG["MOZ_WIDGET_TOOLKIT"] == "gtk":
      UNIFIED_SOURCES += [
-+        'unix/nsCommonRegistry.cpp',
-         'unix/nsGNOMERegistry.cpp',
-+        'unix/nsKDERegistry.cpp',
-         'unix/nsMIMEInfoUnix.cpp',
++        "unix/nsCommonRegistry.cpp",
+         "unix/nsGNOMERegistry.cpp",
++        "unix/nsKDERegistry.cpp",
+         "unix/nsMIMEInfoUnix.cpp",
      ]
- elif CONFIG['MOZ_WIDGET_TOOLKIT'] == 'android':
+ elif CONFIG["MOZ_WIDGET_TOOLKIT"] == "android":
      UNIFIED_SOURCES += [
-         'android/nsAndroidHandlerApp.cpp',
-         'android/nsExternalURLHandlerService.cpp',
-         'android/nsMIMEInfoAndroid.cpp',
+         "android/nsAndroidHandlerApp.cpp",
+         "android/nsExternalURLHandlerService.cpp",
+         "android/nsMIMEInfoAndroid.cpp",
      ]
-@@ -135,16 +137,17 @@ include('/ipc/chromium/chromium-config.m
- FINAL_LIBRARY = 'xul'
+@@ -136,16 +138,17 @@ include("/ipc/chromium/chromium-config.m
+ FINAL_LIBRARY = "xul"
  
  LOCAL_INCLUDES += [
-     '/docshell/base',
-     '/dom/base',
-     '/dom/ipc',
-     '/netwerk/base',
-     '/netwerk/protocol/http',
-+    '/toolkit/xre',
+     "/docshell/base",
+     "/dom/base",
+     "/dom/ipc",
+     "/netwerk/base",
+     "/netwerk/protocol/http",
++    "/toolkit/xre",
  ]
  
- if CONFIG['MOZ_ENABLE_DBUS']:
-     CXXFLAGS += CONFIG['TK_CFLAGS']
-     CXXFLAGS += CONFIG['MOZ_DBUS_CFLAGS']
+ if CONFIG["MOZ_ENABLE_DBUS"]:
+     CXXFLAGS += CONFIG["TK_CFLAGS"]
+     CXXFLAGS += CONFIG["MOZ_DBUS_CFLAGS"]
  
- if CONFIG['MOZ_WIDGET_TOOLKIT'] == 'gtk':
-     CXXFLAGS += CONFIG['TK_CFLAGS']
+ if CONFIG["MOZ_WIDGET_TOOLKIT"] == "gtk":
+     CXXFLAGS += CONFIG["TK_CFLAGS"]
 diff --git a/uriloader/exthandler/unix/nsCommonRegistry.cpp b/uriloader/exthandler/unix/nsCommonRegistry.cpp
 new file mode 100644
 --- /dev/null
@@ -1293,23 +1293,23 @@
 diff --git a/widget/gtk/moz.build b/widget/gtk/moz.build
 --- a/widget/gtk/moz.build
 +++ b/widget/gtk/moz.build
-@@ -134,16 +134,17 @@ FINAL_LIBRARY = 'xul'
+@@ -138,16 +138,17 @@ FINAL_LIBRARY = "xul"
  
  LOCAL_INCLUDES += [
-     '/layout/base',
-     '/layout/forms',
-     '/layout/generic',
-     '/layout/xul',
-     '/other-licenses/atk-1.0',
-     '/third_party/cups/include',
-+    '/toolkit/xre',
-     '/widget',
-     '/widget/headless',
+     "/layout/base",
+     "/layout/forms",
+     "/layout/generic",
+     "/layout/xul",
+     "/other-licenses/atk-1.0",
+     "/third_party/cups/include",
++    "/toolkit/xre",
+     "/widget",
+     "/widget/headless",
  ]
  
- if CONFIG['MOZ_X11']:
+ if CONFIG["MOZ_X11"]:
      LOCAL_INCLUDES += [
-         '/widget/x11',
+         "/widget/x11",
      ]
 diff --git a/widget/gtk/nsFilePicker.cpp b/widget/gtk/nsFilePicker.cpp
 --- a/widget/gtk/nsFilePicker.cpp
@@ -1816,28 +1816,28 @@
 diff --git a/xpcom/components/moz.build b/xpcom/components/moz.build
 --- a/xpcom/components/moz.build
 +++ b/xpcom/components/moz.build
-@@ -62,16 +62,17 @@ LOCAL_INCLUDES += [
-     '!..',
-     '../base',
-     '../build',
-     '../ds',
-     '/chrome',
-     '/js/xpconnect/loader',
-     '/layout/build',
-     '/modules/libjar',
-+    '/toolkit/xre',
+@@ -66,16 +66,17 @@ LOCAL_INCLUDES += [
+     "!..",
+     "../base",
+     "../build",
+     "../ds",
+     "/chrome",
+     "/js/xpconnect/loader",
+     "/layout/build",
+     "/modules/libjar",
++    "/toolkit/xre",
  ]
  
- if CONFIG['MOZ_WIDGET_TOOLKIT'] == 'gtk':
-     CXXFLAGS += CONFIG['TK_CFLAGS']
-     if CONFIG['MOZ_ENABLE_DBUS']:
-         CXXFLAGS += CONFIG['MOZ_DBUS_GLIB_CFLAGS']
+ if CONFIG["MOZ_WIDGET_TOOLKIT"] == "gtk":
+     CXXFLAGS += CONFIG["TK_CFLAGS"]
+     if CONFIG["MOZ_ENABLE_DBUS"]:
+         CXXFLAGS += CONFIG["MOZ_DBUS_GLIB_CFLAGS"]
  
- include('/ipc/chromium/chromium-config.mozbuild')
+ include("/ipc/chromium/chromium-config.mozbuild")
 diff --git a/xpcom/io/nsLocalFileUnix.cpp b/xpcom/io/nsLocalFileUnix.cpp
 --- a/xpcom/io/nsLocalFileUnix.cpp
 +++ b/xpcom/io/nsLocalFileUnix.cpp
-@@ -46,16 +46,17 @@
+@@ -49,16 +49,17 @@
  #include "prproces.h"
  #include "nsIDirectoryEnumerator.h"
  #include "nsSimpleEnumerator.h"
@@ -1855,7 +1855,7 @@
  #  include "prmem.h"
  #  include "plbase64.h"
  
-@@ -1898,62 +1899,77 @@ nsLocalFile::SetPersistentDescriptor(con
+@@ -1968,62 +1969,77 @@ nsLocalFile::SetPersistentDescriptor(con
  
  NS_IMETHODIMP
  nsLocalFile::Reveal() {
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mozilla-pgo.patch	Sun Dec 27 10:49:49 2020 +0100
@@ -0,0 +1,225 @@
+# HG changeset patch
+# User Wolfgang Rosenauer <wr@rosenauer.org>
+# Parent  431962e810598b34327620fb99e06768e9a29c38
+
+diff --git a/build/moz.configure/lto-pgo.configure b/build/moz.configure/lto-pgo.configure
+--- a/build/moz.configure/lto-pgo.configure
++++ b/build/moz.configure/lto-pgo.configure
+@@ -223,23 +223,23 @@ def lto(value, c_compiler, ld64_known_go
+                 "configure."
+             )
+ 
+         if c_compiler.type == "clang":
+             if len(value) and value[0].lower() == "full":
+                 cflags.append("-flto")
+                 ldflags.append("-flto")
+             else:
+-                cflags.append("-flto=thin")
+-                ldflags.append("-flto=thin")
++                cflags.append("-flto")
++                ldflags.append("-flto")
+         elif c_compiler.type == "clang-cl":
+             if len(value) and value[0].lower() == "full":
+                 cflags.append("-flto")
+             else:
+-                cflags.append("-flto=thin")
++                cflags.append("-flto")
+             # With clang-cl, -flto can only be used with -c or -fuse-ld=lld.
+             # AC_TRY_LINKs during configure don't have -c, so pass -fuse-ld=lld.
+             cflags.append("-fuse-ld=lld")
+ 
+             # Explicitly set the CPU to optimize for so the linker doesn't
+             # choose a poor default.  Rust compilation by default uses the
+             # pentium4 CPU on x86:
+             #
+@@ -263,17 +263,17 @@ def lto(value, c_compiler, ld64_known_go
+                 ldflags.append("-mllvm:-mcpu=x86-64")
+             # We do not need special flags for arm64.  Hooray for fixed-length
+             # instruction sets.
+         else:
+             num_cores = multiprocessing.cpu_count()
+             if len(value) and value[0].lower() == "full":
+                 cflags.append("-flto")
+             else:
+-                cflags.append("-flto=thin")
++                cflags.append("-flto")
+             cflags.append("-flifetime-dse=1")
+ 
+             ldflags.append("-flto=%s" % num_cores)
+             ldflags.append("-flifetime-dse=1")
+ 
+         # Tell LTO not to inline functions above a certain size, to mitigate
+         # binary size growth while still getting good performance.
+         # (For hot functions, PGO will put a multiplier on this limit.)
+diff --git a/build/pgo/profileserver.py b/build/pgo/profileserver.py
+--- a/build/pgo/profileserver.py
++++ b/build/pgo/profileserver.py
+@@ -6,17 +6,17 @@
+ 
+ import json
+ import os
+ import sys
+ import glob
+ import subprocess
+ 
+ import mozcrash
+-from mozbuild.base import MozbuildObject, BinaryNotFoundException
++from mozbuild.base import MozbuildObject, BinaryNotFoundException, BuildEnvironmentNotFoundException
+ from mozfile import TemporaryDirectory
+ from mozhttpd import MozHttpd
+ from mozprofile import FirefoxProfile, Preferences
+ from mozprofile.permissions import ServerLocations
+ from mozrunner import FirefoxRunner, CLI
+ from six import string_types
+ 
+ PORT = 8888
+@@ -82,19 +82,32 @@ if __name__ == "__main__":
+         docroot=os.path.join(build.topsrcdir, "build", "pgo"),
+         path_mappings=path_mappings,
+     )
+     httpd.start(block=False)
+ 
+     locations = ServerLocations()
+     locations.add_host(host="127.0.0.1", port=PORT, options="primary,privileged")
+ 
+-    old_profraw_files = glob.glob("*.profraw")
+-    for f in old_profraw_files:
+-        os.remove(f)
++    using_gcc = False
++    try:
++        if build.config_environment.substs.get('CC_TYPE') == 'gcc':
++            using_gcc = True
++    except BuildEnvironmentNotFoundException:
++        pass
++
++    if using_gcc:
++        for dirpath, _, filenames in os.walk('.'):
++            for f in filenames:
++                if f.endswith('.gcda'):
++                    os.remove(os.path.join(dirpath, f))
++    else:
++        old_profraw_files = glob.glob('*.profraw')
++        for f in old_profraw_files:
++            os.remove(f)
+ 
+     with TemporaryDirectory() as profilePath:
+         # TODO: refactor this into mozprofile
+         profile_data_dir = os.path.join(build.topsrcdir, "testing", "profiles")
+         with open(os.path.join(profile_data_dir, "profiles.json"), "r") as fh:
+             base_profiles = json.load(fh)["profileserver"]
+ 
+         prefpaths = [
+@@ -207,16 +220,20 @@ if __name__ == "__main__":
+ 
+         # Try to move the crash reports to the artifacts even if Firefox appears
+         # to exit successfully, in case there's a crash that doesn't set the
+         # return code to non-zero for some reason.
+         if get_crashreports(profilePath, name="Firefox exited successfully?") != 0:
+             print("Firefox exited successfully, but produced a crashreport")
+             sys.exit(1)
+ 
++        print('Copying profile data....')
++        os.system('pwd');
++        os.system('tar cf profdata.tar.gz `find . -name "*.gcda"`; cd ..; tar xf instrumented/profdata.tar.gz;');
++
+         llvm_profdata = env.get("LLVM_PROFDATA")
+         if llvm_profdata:
+             profraw_files = glob.glob("*.profraw")
+             if not profraw_files:
+                 print(
+                     "Could not find profraw files in the current directory: %s"
+                     % os.getcwd()
+                 )
+diff --git a/build/unix/mozconfig.unix b/build/unix/mozconfig.unix
+--- a/build/unix/mozconfig.unix
++++ b/build/unix/mozconfig.unix
+@@ -1,16 +1,25 @@
+ . "$topsrcdir/build/mozconfig.common"
+ 
+ TOOLTOOL_DIR=${TOOLTOOL_DIR:-$topsrcdir}
+ 
+ if [ -n "$FORCE_GCC" ]; then
+     CC="$MOZ_FETCHES_DIR/gcc/bin/gcc"
+     CXX="$MOZ_FETCHES_DIR/gcc/bin/g++"
+ 
++    if [ -n "$MOZ_PGO" ]; then
++        if [ -z "$USE_ARTIFACT" ]; then
++            ac_add_options --enable-lto
++        fi
++        export AR="$topsrcdir/gcc/bin/gcc-ar"
++        export NM="$topsrcdir/gcc/bin/gcc-nm"
++        export RANLIB="$topsrcdir/gcc/bin/gcc-ranlib"
++    fi
++
+     # We want to make sure we use binutils and other binaries in the tooltool
+     # package.
+     mk_add_options "export PATH=$MOZ_FETCHES_DIR/gcc/bin:$PATH"
+     ac_add_options --with-clang-path=$MOZ_FETCHES_DIR/clang/bin/clang
+ else
+     CC="$MOZ_FETCHES_DIR/clang/bin/clang"
+     CXX="$MOZ_FETCHES_DIR/clang/bin/clang++"
+ 
+diff --git a/extensions/spellcheck/src/moz.build b/extensions/spellcheck/src/moz.build
+--- a/extensions/spellcheck/src/moz.build
++++ b/extensions/spellcheck/src/moz.build
+@@ -26,8 +26,10 @@ LOCAL_INCLUDES += [
+ ]
+ EXPORTS.mozilla += [
+     "mozInlineSpellChecker.h",
+     "mozSpellChecker.h",
+ ]
+ 
+ if CONFIG["CC_TYPE"] in ("clang", "gcc"):
+     CXXFLAGS += ["-Wno-error=shadow"]
++
++CXXFLAGS += ['-fno-devirtualize']
+diff --git a/python/mozbuild/mozbuild/build_commands.py b/python/mozbuild/mozbuild/build_commands.py
+--- a/python/mozbuild/mozbuild/build_commands.py
++++ b/python/mozbuild/mozbuild/build_commands.py
+@@ -121,19 +121,18 @@ class Build(MachCommandBase):
+                 silent=not verbose,
+                 ensure_exit_code=False,
+                 append_env=append_env,
+             )
+             if status != 0:
+                 return status
+ 
+             pgo_env = os.environ.copy()
+-            pgo_env["LLVM_PROFDATA"] = instr.config_environment.substs.get(
+-                "LLVM_PROFDATA"
+-            )
++            if instr.config_environment.substs.get('CC_TYPE') != 'gcc':
++                pgo_env["LLVM_PROFDATA"] = instr.config_environment.substs.get("LLVM_PROFDATA")
+             pgo_env["JARLOG_FILE"] = mozpath.join(orig_topobjdir, "jarlog/en-US.log")
+             pgo_cmd = [
+                 instr.virtualenv_manager.python_path,
+                 mozpath.join(self.topsrcdir, "build/pgo/profileserver.py"),
+             ]
+             subprocess.check_call(
+                 pgo_cmd, cwd=instr.topobjdir, env=ensure_subprocess_env(pgo_env)
+             )
+diff --git a/toolkit/components/terminator/nsTerminator.cpp b/toolkit/components/terminator/nsTerminator.cpp
+--- a/toolkit/components/terminator/nsTerminator.cpp
++++ b/toolkit/components/terminator/nsTerminator.cpp
+@@ -413,16 +413,21 @@ void nsTerminator::StartWatchdog() {
+       // Defend against overflow
+       crashAfterMS = INT32_MAX;
+     } else {
+       crashAfterMS *= scaleUp;
+     }
+   }
+ #endif
+ 
++  // Disable watchdog for PGO train builds - writting profile information at
++  // exit may take time and it is better to make build hang rather than
++  // silently produce poorly performing binary.
++  crashAfterMS = INT32_MAX;
++
+   UniquePtr<Options> options(new Options());
+   const PRIntervalTime ticksDuration = PR_MillisecondsToInterval(1000);
+   options->crashAfterTicks = crashAfterMS / ticksDuration;
+   // Handle systems where ticksDuration is greater than crashAfterMS.
+   if (options->crashAfterTicks == 0) {
+     options->crashAfterTicks = crashAfterMS / 1000;
+   }
+ 
--- a/mozilla-pipewire-0-3.patch	Thu Dec 10 14:36:59 2020 +0100
+++ b/mozilla-pipewire-0-3.patch	Sun Dec 27 10:49:49 2020 +0100
@@ -1,1009 +1,163 @@
-# HG changeset patch
-# Parent  5bd7b491505076dc38ba1efc7c406b9c53ba8389
-
-diff --git a/config/system-headers.mozbuild b/config/system-headers.mozbuild
---- a/config/system-headers.mozbuild
-+++ b/config/system-headers.mozbuild
-@@ -309,16 +309,17 @@ system_headers = [
-     'gdk/gdkkeysyms.h',
-     'gdk/gdkprivate.h',
-     'gdk/gdkwayland.h',
-     'gdk/gdkx.h',
-     'gdk-pixbuf/gdk-pixbuf.h',
-     'Gestalt.h',
-     'getopt.h',
-     'gio/gio.h',
-+    'gio/gunixfdlist.h',
-     'glibconfig.h',
-     'glib.h',
-     'glib-object.h',
-     'glob.h',
-     'gmodule.h',
-     'gnome.h',
-     'gnu/libc-version.h',
-     'gps.h',
-@@ -602,16 +603,17 @@ system_headers = [
-     'pango/pangoxft.h',
-     'pascal.h',
-     'Patches.h',
-     'Path.h',
-     'pcfs/pc_dir.h',
-     'Pgenerr.h',
-     'PGenErr.h',
-     'Ph.h',
-+    'pipewire/pipewire.h',
-     'pixman.h',
-     'pk11func.h',
-     'pk11pqg.h',
-     'pk11priv.h',
-     'pk11pub.h',
-     'pk11sdr.h',
-     'pkcs11f.h',
-     'pkcs11.h',
-diff --git a/third_party/libwebrtc/webrtc/modules/desktop_capture/BUILD.gn b/third_party/libwebrtc/webrtc/modules/desktop_capture/BUILD.gn
---- a/third_party/libwebrtc/webrtc/modules/desktop_capture/BUILD.gn
-+++ b/third_party/libwebrtc/webrtc/modules/desktop_capture/BUILD.gn
-@@ -153,17 +153,17 @@ if (rtc_include_tests) {
-       "../../test:test_support",
-     ]
-   }
- }
+diff -up firefox-83.0/browser/actors/WebRTCParent.jsm.pw6 firefox-83.0/browser/actors/WebRTCParent.jsm
+--- firefox-83.0/browser/actors/WebRTCParent.jsm.pw6	2020-11-12 19:04:30.000000000 +0100
++++ firefox-83.0/browser/actors/WebRTCParent.jsm	2020-11-25 10:28:32.492865982 +0100
+@@ -45,6 +45,9 @@ XPCOMUtils.defineLazyServiceGetter(
+   "nsIOSPermissionRequest"
+ );
  
- if (is_linux) {
-   if (rtc_use_pipewire) {
-     pkg_config("pipewire") {
--      packages = [ "libpipewire-0.2" ]
-+      packages = [ "libpipewire-0.3" ]
- 
-       defines = [ "WEBRTC_USE_PIPEWIRE" ]
-     }
- 
-     pkg_config("gio") {
-       packages = [
-         "gio-2.0",
-         "gio-unix-2.0",
-diff --git a/third_party/libwebrtc/webrtc/modules/desktop_capture/desktop_capture_generic_gn/moz.build b/third_party/libwebrtc/webrtc/modules/desktop_capture/desktop_capture_generic_gn/moz.build
---- a/third_party/libwebrtc/webrtc/modules/desktop_capture/desktop_capture_generic_gn/moz.build
-+++ b/third_party/libwebrtc/webrtc/modules/desktop_capture/desktop_capture_generic_gn/moz.build
-@@ -112,16 +112,39 @@ if CONFIG["OS_TARGET"] == "DragonFly":
-         "/third_party/libwebrtc/webrtc/modules/desktop_capture/linux/x_atom_cache.cc",
-         "/third_party/libwebrtc/webrtc/modules/desktop_capture/linux/x_error_trap.cc",
-         "/third_party/libwebrtc/webrtc/modules/desktop_capture/linux/x_server_pixel_buffer.cc",
-         "/third_party/libwebrtc/webrtc/modules/desktop_capture/mouse_cursor_monitor_linux.cc",
-         "/third_party/libwebrtc/webrtc/modules/desktop_capture/screen_capturer_linux.cc",
-         "/third_party/libwebrtc/webrtc/modules/desktop_capture/window_capturer_linux.cc"
-     ]
- 
-+# PipeWire specific files
-+if CONFIG["OS_TARGET"] == "Linux":
-+
-+    DEFINES["WEBRTC_USE_PIPEWIRE"] = "1"
++const PIPEWIRE_PORTAL_NAME = "####_PIPEWIRE_PORTAL_####";
++const PIPEWIRE_ID = 0xaffffff;
 +
-+    OS_LIBS += [
-+        "rt",
-+        "pipewire-0.3",
-+        "glib-2.0",
-+        "gio-2.0",
-+        "gobject-2.0"
-+    ]
-+
-+    CXXFLAGS += CONFIG['TK_CFLAGS']
-+    CXXFLAGS += [ "-I/usr/include/pipewire-0.3" ]
-+    CXXFLAGS += [ "-I/usr/include/spa-0.2" ]
-+
-+    UNIFIED_SOURCES += [
-+        "/third_party/libwebrtc/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.cc",
-+        "/third_party/libwebrtc/webrtc/modules/desktop_capture/linux/screen_capturer_pipewire.cc",
-+        "/third_party/libwebrtc/webrtc/modules/desktop_capture/linux/window_capturer_pipewire.cc"
-+    ]
-+
- if CONFIG["OS_TARGET"] == "FreeBSD":
- 
-     DEFINES["USE_X11"] = "1"
-     DEFINES["WEBRTC_BSD"] = True
-     DEFINES["WEBRTC_POSIX"] = True
-     DEFINES["_FILE_OFFSET_BITS"] = "64"
- 
-     OS_LIBS += [
-diff --git a/third_party/libwebrtc/webrtc/modules/desktop_capture/desktop_capture_options.h b/third_party/libwebrtc/webrtc/modules/desktop_capture/desktop_capture_options.h
---- a/third_party/libwebrtc/webrtc/modules/desktop_capture/desktop_capture_options.h
-+++ b/third_party/libwebrtc/webrtc/modules/desktop_capture/desktop_capture_options.h
-@@ -136,15 +136,15 @@ class DesktopCaptureOptions {
- #if defined(USE_X11)
-   bool use_update_notifications_ = false;
- #else
-   bool use_update_notifications_ = true;
- #endif
-   bool disable_effects_ = true;
-   bool detect_updated_region_ = false;
- #if defined(WEBRTC_USE_PIPEWIRE)
--  bool allow_pipewire_ = false;
-+  bool allow_pipewire_ = true;
- #endif
- };
- 
- }  // namespace webrtc
- 
- #endif  // MODULES_DESKTOP_CAPTURE_DESKTOP_CAPTURE_OPTIONS_H_
-diff --git a/third_party/libwebrtc/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.cc b/third_party/libwebrtc/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.cc
---- a/third_party/libwebrtc/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.cc
-+++ b/third_party/libwebrtc/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.cc
-@@ -10,18 +10,21 @@
- 
- #include "modules/desktop_capture/linux/base_capturer_pipewire.h"
- 
- #include <gio/gunixfdlist.h>
- #include <glib-object.h>
- 
- #include <spa/param/format-utils.h>
- #include <spa/param/props.h>
--#include <spa/param/video/raw-utils.h>
--#include <spa/support/type-map.h>
-+
-+#include <linux/dma-buf.h>
-+#include <sys/mman.h>
-+#include <sys/ioctl.h>
-+#include <sys/syscall.h>
- 
- #include <memory>
- #include <utility>
- 
- #include "modules/desktop_capture/desktop_capture_options.h"
- #include "modules/desktop_capture/desktop_capturer.h"
- #include "rtc_base/checks.h"
- #include "rtc_base/logging.h"
-@@ -31,181 +34,158 @@ namespace webrtc {
- const char kDesktopBusName[] = "org.freedesktop.portal.Desktop";
- const char kDesktopObjectPath[] = "/org/freedesktop/portal/desktop";
- const char kDesktopRequestObjectPath[] =
-     "/org/freedesktop/portal/desktop/request";
- const char kSessionInterfaceName[] = "org.freedesktop.portal.Session";
- const char kRequestInterfaceName[] = "org.freedesktop.portal.Request";
- const char kScreenCastInterfaceName[] = "org.freedesktop.portal.ScreenCast";
- 
-+
- // static
--void BaseCapturerPipeWire::OnStateChanged(void* data,
--                                          pw_remote_state old_state,
--                                          pw_remote_state state,
--                                          const char* error_message) {
--  BaseCapturerPipeWire* that = static_cast<BaseCapturerPipeWire*>(data);
--  RTC_DCHECK(that);
-+void BaseCapturerPipeWire::SyncDmaBuf(int fd, uint64_t start_or_end) {
-+  struct dma_buf_sync sync = { 0 };
-+
-+  sync.flags = start_or_end | DMA_BUF_SYNC_READ;
+ class WebRTCParent extends JSWindowActorParent {
+   didDestroy() {
+     webrtcUI.forgetStreamsFromBrowserContext(this.browsingContext);
+@@ -753,6 +756,8 @@ function prompt(aActor, aBrowser, aReque
+         );
+         menupopup.appendChild(doc.createXULElement("menuseparator"));
  
--  switch (state) {
--    case PW_REMOTE_STATE_ERROR:
--      RTC_LOG(LS_ERROR) << "PipeWire remote state error: " << error_message;
-+  while(true) {
-+    int ret;
-+    ret = ioctl (fd, DMA_BUF_IOCTL_SYNC, &sync);
-+    if (ret == -1 && errno == EINTR) {
-+      continue;
-+    } else if (ret == -1) {
-+      RTC_LOG(LS_ERROR) << "Failed to synchronize DMA buffer: " << g_strerror(errno);
-       break;
--    case PW_REMOTE_STATE_CONNECTED:
--      RTC_LOG(LS_INFO) << "PipeWire remote state: connected.";
--      that->CreateReceivingStream();
-+    } else {
-       break;
--    case PW_REMOTE_STATE_CONNECTING:
--      RTC_LOG(LS_INFO) << "PipeWire remote state: connecting.";
--      break;
--    case PW_REMOTE_STATE_UNCONNECTED:
--      RTC_LOG(LS_INFO) << "PipeWire remote state: unconnected.";
--      break;
-+    }
-   }
- }
- 
- // static
-+void BaseCapturerPipeWire::OnCoreError(void *data,
-+                                       uint32_t id,
-+                                       int seq,
-+                                       int res,
-+                                       const char *message) {
-+  RTC_LOG(LS_ERROR) << "core error: " << message;
-+}
-+
-+// static
- void BaseCapturerPipeWire::OnStreamStateChanged(void* data,
-                                                 pw_stream_state old_state,
-                                                 pw_stream_state state,
-                                                 const char* error_message) {
-   BaseCapturerPipeWire* that = static_cast<BaseCapturerPipeWire*>(data);
-   RTC_DCHECK(that);
- 
-   switch (state) {
-     case PW_STREAM_STATE_ERROR:
-       RTC_LOG(LS_ERROR) << "PipeWire stream state error: " << error_message;
-       break;
--    case PW_STREAM_STATE_CONFIGURE:
--      pw_stream_set_active(that->pw_stream_, true);
--      break;
-+    case PW_STREAM_STATE_PAUSED:
-+    case PW_STREAM_STATE_STREAMING:
-     case PW_STREAM_STATE_UNCONNECTED:
-     case PW_STREAM_STATE_CONNECTING:
--    case PW_STREAM_STATE_READY:
--    case PW_STREAM_STATE_PAUSED:
--    case PW_STREAM_STATE_STREAMING:
-       break;
-   }
- }
- 
- // static
--void BaseCapturerPipeWire::OnStreamFormatChanged(void* data,
--                                                 const struct spa_pod* format) {
-+void BaseCapturerPipeWire::OnStreamParamChanged(void *data, uint32_t id,
-+                                                const struct spa_pod *format) {
-   BaseCapturerPipeWire* that = static_cast<BaseCapturerPipeWire*>(data);
-   RTC_DCHECK(that);
- 
--  RTC_LOG(LS_INFO) << "PipeWire stream format changed.";
-+  RTC_LOG(LS_INFO) << "PipeWire stream param changed.";
- 
--  if (!format) {
--    pw_stream_finish_format(that->pw_stream_, /*res=*/0, /*params=*/nullptr,
--                            /*n_params=*/0);
-+  if (!format || id != SPA_PARAM_Format) {
-     return;
-   }
- 
--  that->spa_video_format_ = new spa_video_info_raw();
--  spa_format_video_raw_parse(format, that->spa_video_format_,
--                             &that->pw_type_->format_video);
-+  spa_format_video_raw_parse(format, &that->spa_video_format_);
- 
--  auto width = that->spa_video_format_->size.width;
--  auto height = that->spa_video_format_->size.height;
-+  auto width = that->spa_video_format_.size.width;
-+  auto height = that->spa_video_format_.size.height;
-   auto stride = SPA_ROUND_UP_N(width * kBytesPerPixel, 4);
-   auto size = height * stride;
- 
-+  that->desktop_size_ = DesktopSize(width, height);
++        let isPipeWire = false;
 +
-   uint8_t buffer[1024] = {};
-   auto builder = spa_pod_builder{buffer, sizeof(buffer)};
- 
-   // Setup buffers and meta header for new format.
--  const struct spa_pod* params[2];
--  params[0] = reinterpret_cast<spa_pod*>(spa_pod_builder_object(
--      &builder,
--      // id to enumerate buffer requirements
--      that->pw_core_type_->param.idBuffers,
--      that->pw_core_type_->param_buffers.Buffers,
--      // Size: specified as integer (i) and set to specified size
--      ":", that->pw_core_type_->param_buffers.size, "i", size,
--      // Stride: specified as integer (i) and set to specified stride
--      ":", that->pw_core_type_->param_buffers.stride, "i", stride,
--      // Buffers: specifies how many buffers we want to deal with, set as
--      // integer (i) where preferred number is 8, then allowed number is defined
--      // as range (r) from min and max values and it is undecided (u) to allow
--      // negotiation
--      ":", that->pw_core_type_->param_buffers.buffers, "iru", 8,
--      SPA_POD_PROP_MIN_MAX(1, 32),
--      // Align: memory alignment of the buffer, set as integer (i) to specified
--      // value
--      ":", that->pw_core_type_->param_buffers.align, "i", 16));
--  params[1] = reinterpret_cast<spa_pod*>(spa_pod_builder_object(
--      &builder,
--      // id to enumerate supported metadata
--      that->pw_core_type_->param.idMeta, that->pw_core_type_->param_meta.Meta,
--      // Type: specified as id or enum (I)
--      ":", that->pw_core_type_->param_meta.type, "I",
--      that->pw_core_type_->meta.Header,
--      // Size: size of the metadata, specified as integer (i)
--      ":", that->pw_core_type_->param_meta.size, "i",
--      sizeof(struct spa_meta_header)));
--
--  pw_stream_finish_format(that->pw_stream_, /*res=*/0, params, /*n_params=*/2);
-+  const struct spa_pod* params[3];
-+  params[0] = reinterpret_cast<spa_pod *>(spa_pod_builder_add_object(&builder,
-+              SPA_TYPE_OBJECT_ParamBuffers, SPA_PARAM_Buffers,
-+              SPA_PARAM_BUFFERS_size, SPA_POD_Int(size),
-+              SPA_PARAM_BUFFERS_stride, SPA_POD_Int(stride),
-+              SPA_PARAM_BUFFERS_buffers, SPA_POD_CHOICE_RANGE_Int(8, 1, 32)));
-+  params[1] = reinterpret_cast<spa_pod *>(spa_pod_builder_add_object(&builder,
-+              SPA_TYPE_OBJECT_ParamMeta, SPA_PARAM_Meta,
-+              SPA_PARAM_META_type, SPA_POD_Id(SPA_META_Header),
-+              SPA_PARAM_META_size, SPA_POD_Int(sizeof(struct spa_meta_header))));
-+  params[2] = reinterpret_cast<spa_pod *>(spa_pod_builder_add_object(&builder,
-+              SPA_TYPE_OBJECT_ParamMeta, SPA_PARAM_Meta,
-+              SPA_PARAM_META_type, SPA_POD_Id (SPA_META_VideoCrop),
-+              SPA_PARAM_META_size, SPA_POD_Int (sizeof(struct spa_meta_region))));
-+  pw_stream_update_params(that->pw_stream_, params, 3);
- }
- 
- // static
- void BaseCapturerPipeWire::OnStreamProcess(void* data) {
-   BaseCapturerPipeWire* that = static_cast<BaseCapturerPipeWire*>(data);
-   RTC_DCHECK(that);
- 
--  pw_buffer* buf = nullptr;
-+  struct pw_buffer *next_buffer;
-+  struct pw_buffer *buffer = nullptr;
- 
--  if (!(buf = pw_stream_dequeue_buffer(that->pw_stream_))) {
-+  next_buffer = pw_stream_dequeue_buffer(that->pw_stream_);
-+  while (next_buffer) {
-+    buffer = next_buffer;
-+    next_buffer = pw_stream_dequeue_buffer(that->pw_stream_);
-+
-+    if (next_buffer)
-+      pw_stream_queue_buffer (that->pw_stream_, buffer);
-+  }
-+
-+  if (!buffer) {
-     return;
-   }
- 
--  that->HandleBuffer(buf);
-+  that->HandleBuffer(buffer);
- 
--  pw_stream_queue_buffer(that->pw_stream_, buf);
-+  pw_stream_queue_buffer(that->pw_stream_, buffer);
- }
- 
- BaseCapturerPipeWire::BaseCapturerPipeWire(CaptureSourceType source_type)
-     : capture_source_type_(source_type) {}
- 
- BaseCapturerPipeWire::~BaseCapturerPipeWire() {
-   if (pw_main_loop_) {
-     pw_thread_loop_stop(pw_main_loop_);
-   }
- 
--  if (pw_type_) {
--    delete pw_type_;
--  }
--
--  if (spa_video_format_) {
--    delete spa_video_format_;
--  }
--
-   if (pw_stream_) {
-     pw_stream_destroy(pw_stream_);
-   }
- 
--  if (pw_remote_) {
--    pw_remote_destroy(pw_remote_);
-+  if (pw_core_) {
-+    pw_core_disconnect(pw_core_);
-   }
+         // Build the list of 'devices'.
+         let monitorIndex = 1;
+         for (let i = 0; i < devices.length; ++i) {
+@@ -774,6 +779,29 @@ function prompt(aActor, aBrowser, aReque
+             }
+           } else {
+             name = device.name;
++            // When we share content by PipeWire add only one item to the device
++            // list. When it's selected PipeWire portal dialog is opened and
++            // user confirms actual window/screen sharing there.
++            // Don't mark it as scary as there's an extra confirmation step by
++            // PipeWire portal dialog.
++            if (name == PIPEWIRE_PORTAL_NAME && device.id == PIPEWIRE_ID) {
++              isPipeWire = true;
++              let name;
++              try {
++                name = stringBundle.getString("getUserMedia.sharePipeWirePortal.label");
++              } catch (err) {
++                name = "Use operating system settings"
++              }
++              let item = addDeviceToList(
++                menupopup,
++                name,
++                i,
++                type
++              );
++              item.deviceId = device.id;
++              item.mediaSource = type;
++              break;
++            }
+             if (type == "application") {
+               // The application names returned by the platform are of the form:
+               // <window count>\x1e<application name>
+@@ -888,39 +916,41 @@ function prompt(aActor, aBrowser, aReque
+             perms.EXPIRE_SESSION
+           );
  
--  if (pw_core_) {
--    pw_core_destroy(pw_core_);
-+  if (pw_context_) {
-+    pw_context_destroy(pw_context_);
-   }
- 
-   if (pw_main_loop_) {
-     pw_thread_loop_destroy(pw_main_loop_);
-   }
- 
--  if (pw_loop_) {
--    pw_loop_destroy(pw_loop_);
--  }
--
--  if (current_frame_) {
--    free(current_frame_);
--  }
--
-   if (start_request_signal_id_) {
-     g_dbus_connection_signal_unsubscribe(connection_, start_request_signal_id_);
-   }
-   if (sources_request_signal_id_) {
-     g_dbus_connection_signal_unsubscribe(connection_,
-                                          sources_request_signal_id_);
-   }
-   if (session_request_signal_id_) {
-@@ -245,142 +225,220 @@ void BaseCapturerPipeWire::InitPortal() 
-       kDesktopBusName, kDesktopObjectPath, kScreenCastInterfaceName,
-       /*cancellable=*/nullptr,
-       reinterpret_cast<GAsyncReadyCallback>(OnProxyRequested), this);
- }
- 
- void BaseCapturerPipeWire::InitPipeWire() {
-   pw_init(/*argc=*/nullptr, /*argc=*/nullptr);
- 
--  pw_loop_ = pw_loop_new(/*properties=*/nullptr);
--  pw_main_loop_ = pw_thread_loop_new(pw_loop_, "pipewire-main-loop");
-+  pw_main_loop_ = pw_thread_loop_new("pipewire-main-loop", nullptr);
-+  pw_context_ = pw_context_new(pw_thread_loop_get_loop(pw_main_loop_), nullptr, 0);
-+  if (!pw_context_) {
-+    RTC_LOG(LS_ERROR) << "Failed to create PipeWire context";
-+    return;
-+  }
- 
--  pw_core_ = pw_core_new(pw_loop_, /*properties=*/nullptr);
--  pw_core_type_ = pw_core_get_type(pw_core_);
--  pw_remote_ = pw_remote_new(pw_core_, nullptr, /*user_data_size=*/0);
--
--  InitPipeWireTypes();
-+  pw_core_ = pw_context_connect(pw_context_, nullptr, 0);
-+  if (!pw_core_) {
-+    RTC_LOG(LS_ERROR) << "Failed to connect PipeWire context";
-+    return;
-+  }
- 
-   // Initialize event handlers, remote end and stream-related.
--  pw_remote_events_.version = PW_VERSION_REMOTE_EVENTS;
--  pw_remote_events_.state_changed = &OnStateChanged;
-+  pw_core_events_.version = PW_VERSION_CORE_EVENTS;
-+  pw_core_events_.error = &OnCoreError;
- 
-   pw_stream_events_.version = PW_VERSION_STREAM_EVENTS;
-   pw_stream_events_.state_changed = &OnStreamStateChanged;
--  pw_stream_events_.format_changed = &OnStreamFormatChanged;
-+  pw_stream_events_.param_changed = &OnStreamParamChanged;
-   pw_stream_events_.process = &OnStreamProcess;
- 
--  pw_remote_add_listener(pw_remote_, &spa_remote_listener_, &pw_remote_events_,
--                         this);
--  pw_remote_connect_fd(pw_remote_, pw_fd_);
-+  pw_core_add_listener(pw_core_, &spa_core_listener_, &pw_core_events_, this);
-+
-+  pw_stream_ = CreateReceivingStream();
-+  if (!pw_stream_) {
-+    RTC_LOG(LS_ERROR) << "Failed to create PipeWire stream";
-+    return;
-+  }
- 
-   if (pw_thread_loop_start(pw_main_loop_) < 0) {
-     RTC_LOG(LS_ERROR) << "Failed to start main PipeWire loop";
-     portal_init_failed_ = true;
-   }
- }
- 
--void BaseCapturerPipeWire::InitPipeWireTypes() {
--  spa_type_map* map = pw_core_type_->map;
--  pw_type_ = new PipeWireType();
--
--  spa_type_media_type_map(map, &pw_type_->media_type);
--  spa_type_media_subtype_map(map, &pw_type_->media_subtype);
--  spa_type_format_video_map(map, &pw_type_->format_video);
--  spa_type_video_format_map(map, &pw_type_->video_format);
--}
-+pw_stream* BaseCapturerPipeWire::CreateReceivingStream() {
-+  spa_rectangle pwMinScreenBounds = spa_rectangle{1, 1};
-+  spa_rectangle pwMaxScreenBounds = spa_rectangle{INT32_MAX, INT32_MAX};
- 
--void BaseCapturerPipeWire::CreateReceivingStream() {
--  spa_rectangle pwMinScreenBounds = spa_rectangle{1, 1};
--  spa_rectangle pwScreenBounds =
--      spa_rectangle{static_cast<uint32_t>(desktop_size_.width()),
--                    static_cast<uint32_t>(desktop_size_.height())};
-+  auto stream = pw_stream_new(pw_core_, "webrtc-pipewire-stream", nullptr);
- 
--  spa_fraction pwFrameRateMin = spa_fraction{0, 1};
--  spa_fraction pwFrameRateMax = spa_fraction{60, 1};
--
--  pw_properties* reuseProps = pw_properties_new("pipewire.client.reuse", "1",
--                                                /*end of varargs*/ nullptr);
--  pw_stream_ = pw_stream_new(pw_remote_, "webrtc-consume-stream", reuseProps);
-+  if (!stream) {
-+    RTC_LOG(LS_ERROR) << "Could not create receiving stream.";
-+    return nullptr;
-+  }
- 
-   uint8_t buffer[1024] = {};
--  const spa_pod* params[1];
--  spa_pod_builder builder = spa_pod_builder{buffer, sizeof(buffer)};
--  params[0] = reinterpret_cast<spa_pod*>(spa_pod_builder_object(
--      &builder,
--      // id to enumerate formats
--      pw_core_type_->param.idEnumFormat, pw_core_type_->spa_format, "I",
--      pw_type_->media_type.video, "I", pw_type_->media_subtype.raw,
--      // Video format: specified as id or enum (I), preferred format is BGRx,
--      // then allowed formats are enumerated (e) and the format is undecided (u)
--      // to allow negotiation
--      ":", pw_type_->format_video.format, "Ieu", pw_type_->video_format.BGRx,
--      SPA_POD_PROP_ENUM(2, pw_type_->video_format.RGBx,
--                        pw_type_->video_format.BGRx),
--      // Video size: specified as rectangle (R), preferred size is specified as
--      // first parameter, then allowed size is defined as range (r) from min and
--      // max values and the format is undecided (u) to allow negotiation
--      ":", pw_type_->format_video.size, "Rru", &pwScreenBounds, 2,
--      &pwMinScreenBounds, &pwScreenBounds,
--      // Frame rate: specified as fraction (F) and set to minimum frame rate
--      // value
--      ":", pw_type_->format_video.framerate, "F", &pwFrameRateMin,
--      // Max frame rate: specified as fraction (F), preferred frame rate is set
--      // to maximum value, then allowed frame rate is defined as range (r) from
--      // min and max values and it is undecided (u) to allow negotiation
--      ":", pw_type_->format_video.max_framerate, "Fru", &pwFrameRateMax, 2,
--      &pwFrameRateMin, &pwFrameRateMax));
-+  const spa_pod* params[2];
-+  spa_pod_builder builder = SPA_POD_BUILDER_INIT(buffer, sizeof (buffer));
- 
--  pw_stream_add_listener(pw_stream_, &spa_stream_listener_, &pw_stream_events_,
--                         this);
-+  params[0] = reinterpret_cast<spa_pod *>(spa_pod_builder_add_object(&builder,
-+              SPA_TYPE_OBJECT_Format, SPA_PARAM_EnumFormat,
-+              SPA_FORMAT_mediaType, SPA_POD_Id(SPA_MEDIA_TYPE_video),
-+              SPA_FORMAT_mediaSubtype, SPA_POD_Id(SPA_MEDIA_SUBTYPE_raw),
-+              SPA_FORMAT_VIDEO_format, SPA_POD_CHOICE_ENUM_Id(5, SPA_VIDEO_FORMAT_BGRx, SPA_VIDEO_FORMAT_RGBx, SPA_VIDEO_FORMAT_RGBA,
-+                                                                 SPA_VIDEO_FORMAT_BGRx, SPA_VIDEO_FORMAT_BGRA),
-+              SPA_FORMAT_VIDEO_size, SPA_POD_CHOICE_RANGE_Rectangle(&pwMinScreenBounds,
-+                                                                    &pwMinScreenBounds,
-+                                                                    &pwMaxScreenBounds),
-+              0));
-+  pw_stream_add_listener(stream, &spa_stream_listener_, &pw_stream_events_, this);
-+
-   pw_stream_flags flags = static_cast<pw_stream_flags>(
--      PW_STREAM_FLAG_AUTOCONNECT | PW_STREAM_FLAG_INACTIVE |
--      PW_STREAM_FLAG_MAP_BUFFERS);
--  if (pw_stream_connect(pw_stream_, PW_DIRECTION_INPUT, /*port_path=*/nullptr,
--                        flags, params,
--                        /*n_params=*/1) != 0) {
-+      PW_STREAM_FLAG_AUTOCONNECT | PW_STREAM_FLAG_INACTIVE);
-+
-+  if (pw_stream_connect(stream, PW_DIRECTION_INPUT, pw_stream_node_id_, PW_STREAM_FLAG_AUTOCONNECT, params, 1) != 0) {
-     RTC_LOG(LS_ERROR) << "Could not connect receiving stream.";
-     portal_init_failed_ = true;
--    return;
-   }
-+
-+  return stream;
- }
- 
- void BaseCapturerPipeWire::HandleBuffer(pw_buffer* buffer) {
-+  struct spa_meta_region* video_crop;
-   spa_buffer* spaBuffer = buffer->buffer;
--  void* src = nullptr;
-+  uint8_t *map = nullptr;
-+  uint8_t* src = nullptr;
-+  uint8_t* dst = nullptr;
-+
-+  if (spaBuffer->datas[0].chunk->size == 0) {
-+    map = nullptr;
-+    src = nullptr;
-+  } else if (spaBuffer->datas[0].type == SPA_DATA_MemFd) {
-+    map = static_cast<uint8_t*>(mmap(
-+        nullptr, spaBuffer->datas[0].maxsize + spaBuffer->datas[0].mapoffset,
-+        PROT_READ, MAP_PRIVATE, spaBuffer->datas[0].fd, 0));
-+
-+    if (map == MAP_FAILED) {
-+      RTC_LOG(LS_ERROR) << "Failed to mmap the memory: " << std::strerror(errno);
-+      return;
-+    }
- 
--  if (!(src = spaBuffer->datas[0].data)) {
-+    src = SPA_MEMBER(map, spaBuffer->datas[0].mapoffset, uint8_t);
-+  } else if (spaBuffer->datas[0].type == SPA_DATA_DmaBuf) {
-+    int fd;
-+    fd = spaBuffer->datas[0].fd;
-+
-+    map = static_cast<uint8_t*>(mmap(
-+        nullptr, spaBuffer->datas[0].maxsize + spaBuffer->datas[0].mapoffset,
-+        PROT_READ, MAP_PRIVATE, fd, 0));
-+
-+    if (map == MAP_FAILED) {
-+      RTC_LOG(LS_ERROR) << "Failed to mmap the memory: " << std::strerror(errno);
-+      return;
-+    }
-+
-+    SyncDmaBuf(fd, DMA_BUF_SYNC_START);
-+
-+    src = SPA_MEMBER(map, spaBuffer->datas[0].mapoffset, uint8_t);
-+  } else if (spaBuffer->datas[0].type == SPA_DATA_MemPtr) {
-+    map = nullptr;
-+    src = static_cast<uint8_t*>(spaBuffer->datas[0].data);
-+  } else {
-     return;
-   }
- 
--  uint32_t maxSize = spaBuffer->datas[0].maxsize;
--  int32_t srcStride = spaBuffer->datas[0].chunk->stride;
-+  if (!src) {
-+    return;
-+  }
-+
-+  DesktopSize prev_crop_size = DesktopSize(0, 0);
-+  if (video_crop_size_initialized_) {
-+    prev_crop_size = video_crop_size_;
-+  }  
-+
-+  if ((video_crop = static_cast<struct spa_meta_region*>(
-+           spa_buffer_find_meta_data(spaBuffer, SPA_META_VideoCrop, sizeof(*video_crop))))) {
-+    RTC_DCHECK(video_crop->region.size.width <= desktop_size_.width() &&
-+               video_crop->region.size.height <= desktop_size_.height());
-+    if ((video_crop->region.size.width != desktop_size_.width() ||
-+        video_crop->region.size.height != desktop_size_.height()) && video_crop->region.size.width && video_crop->region.size.height) {
-+      video_crop_size_ = DesktopSize(video_crop->region.size.width, video_crop->region.size.height);
-+      video_crop_size_initialized_ = true;
-+    } else {
-+      video_crop_size_initialized_ = false;
-+    }
-+  } else {
-+    video_crop_size_initialized_ = false;
-+  }
-+
-+  size_t frame_size;
-+  if (video_crop_size_initialized_) {
-+    frame_size =
-+        video_crop_size_.width() * video_crop_size_.height() * kBytesPerPixel;
-+  } else {
-+    frame_size =
-+        desktop_size_.width() * desktop_size_.height() * kBytesPerPixel;
-+  }
-+
-+  if (!current_frame_ ||
-+      (video_crop_size_initialized_ && !video_crop_size_.equals(prev_crop_size))) {
-+    current_frame_ = std::make_unique<uint8_t[]>(frame_size);
-+  }
-+  RTC_DCHECK(current_frame_ != nullptr);
-+
-+  const int32_t dstStride = video_crop_size_initialized_
-+                                ? video_crop_size_.width() * kBytesPerPixel
-+                                : desktop_size_.width() * kBytesPerPixel;
-+  const int32_t srcStride = spaBuffer->datas[0].chunk->stride;
-+
-   if (srcStride != (desktop_size_.width() * kBytesPerPixel)) {
-     RTC_LOG(LS_ERROR) << "Got buffer with stride different from screen stride: "
-                       << srcStride
-                       << " != " << (desktop_size_.width() * kBytesPerPixel);
-     portal_init_failed_ = true;
-     return;
-   }
- 
--  if (!current_frame_) {
--    current_frame_ = static_cast<uint8_t*>(malloc(maxSize));
--  }
--  RTC_DCHECK(current_frame_ != nullptr);
-+  dst = current_frame_.get();
- 
--  // If both sides decided to go with the RGBx format we need to convert it to
--  // BGRx to match color format expected by WebRTC.
--  if (spa_video_format_->format == pw_type_->video_format.RGBx) {
--    uint8_t* tempFrame = static_cast<uint8_t*>(malloc(maxSize));
--    std::memcpy(tempFrame, src, maxSize);
--    ConvertRGBxToBGRx(tempFrame, maxSize);
--    std::memcpy(current_frame_, tempFrame, maxSize);
--    free(tempFrame);
--  } else {
--    std::memcpy(current_frame_, src, maxSize);
-+  // Adjust source content based on crop video position
-+  if (video_crop_size_initialized_ &&
-+      (video_crop->region.position.y + video_crop_size_.height() <= desktop_size_.height())) {
-+    for (int i = 0; i < video_crop->region.position.y; ++i) {
-+      src += srcStride;
-+    }
-+  }
-+  const int xOffset =
-+      video_crop_size_initialized_ && (video_crop->region.position.x + video_crop_size_.width() <=
-+                           desktop_size_.width())
-+          ? video_crop->region.position.x * kBytesPerPixel
-+          : 0;
-+  const int height = video_crop_size_initialized_ ? video_crop_size_.height() : desktop_size_.height();
-+  for (int i = 0; i < height; ++i) {
-+    // Adjust source content based on crop video position if needed
-+    src += xOffset;
-+    std::memcpy(dst, src, dstStride);
-+    // If both sides decided to go with the RGBx format we need to convert it to
-+    // BGRx to match color format expected by WebRTC.
-+    if (spa_video_format_.format == SPA_VIDEO_FORMAT_RGBx ||
-+        spa_video_format_.format == SPA_VIDEO_FORMAT_RGBA) {
-+      ConvertRGBxToBGRx(dst, dstStride);
-+    }
-+    src += srcStride - xOffset;
-+    dst += dstStride;
-+  }
-+
-+  if (map) {
-+    if (spaBuffer->datas[0].type == SPA_DATA_DmaBuf) {
-+      SyncDmaBuf(spaBuffer->datas[0].fd, DMA_BUF_SYNC_END);
-+    }
-+    munmap(map, spaBuffer->datas[0].maxsize + spaBuffer->datas[0].mapoffset);
-   }
- }
- 
- void BaseCapturerPipeWire::ConvertRGBxToBGRx(uint8_t* frame, uint32_t size) {
-   // Change color format for KDE KWin which uses RGBx and not BGRx
-   for (uint32_t i = 0; i < size; i += 4) {
-     uint8_t tempR = frame[i];
-     uint8_t tempB = frame[i + 2];
-@@ -720,20 +778,17 @@ void BaseCapturerPipeWire::OnStartReques
-       guint32 stream_id;
-       gint32 width;
-       gint32 height;
-       GVariant* options;
- 
-       g_variant_get(variant, "(u@a{sv})", &stream_id, &options);
-       RTC_DCHECK(options != nullptr);
- 
--      g_variant_lookup(options, "size", "(ii)", &width, &height);
--
--      that->desktop_size_.set(width, height);
--
-+      that->pw_stream_node_id_ = stream_id;
-       g_variant_unref(options);
-       g_variant_unref(variant);
-     }
-   }
-   g_variant_iter_free(iter);
-   g_variant_unref(response_data);
- 
-   that->OpenPipeWireRemote();
-@@ -808,20 +863,25 @@ void BaseCapturerPipeWire::CaptureFrame(
-     return;
-   }
- 
-   if (!current_frame_) {
-     callback_->OnCaptureResult(Result::ERROR_TEMPORARY, nullptr);
-     return;
-   }
- 
--  std::unique_ptr<DesktopFrame> result(new BasicDesktopFrame(desktop_size_));
-+  DesktopSize frame_size = desktop_size_;
-+  if (video_crop_size_initialized_) {
-+    frame_size = video_crop_size_;
-+  }
-+  
-+  std::unique_ptr<DesktopFrame> result(new BasicDesktopFrame(frame_size));
-   result->CopyPixelsFrom(
--      current_frame_, (desktop_size_.width() * kBytesPerPixel),
--      DesktopRect::MakeWH(desktop_size_.width(), desktop_size_.height()));
-+      current_frame_.get(), (frame_size.width() * kBytesPerPixel),
-+      DesktopRect::MakeWH(frame_size.width(), frame_size.height()));
-   if (!result) {
-     callback_->OnCaptureResult(Result::ERROR_TEMPORARY, nullptr);
-     return;
-   }
+-          video.deviceId = deviceId;
+-          let constraints = {
+-            video: { mediaSource: type, deviceId: { exact: deviceId } },
+-          };
+-          chromeWin.navigator.mediaDevices.getUserMedia(constraints).then(
+-            stream => {
+-              if (video.deviceId != deviceId) {
+-                // The user has selected a different device or closed the panel
+-                // before getUserMedia finished.
+-                stream.getTracks().forEach(t => t.stop());
+-                return;
+-              }
+-              video.srcObject = stream;
+-              video.stream = stream;
+-              doc.getElementById("webRTC-preview").hidden = false;
+-              video.onloadedmetadata = function(e) {
+-                video.play();
+-              };
+-            },
+-            err => {
+-              if (
+-                err.name == "OverconstrainedError" &&
+-                err.constraint == "deviceId"
+-              ) {
+-                // Window has disappeared since enumeration, which can happen.
+-                // No preview for you.
+-                return;
++          if (!isPipeWire) {
++            video.deviceId = deviceId;
++            let constraints = {
++              video: { mediaSource: type, deviceId: { exact: deviceId } },
++            };
++            chromeWin.navigator.mediaDevices.getUserMedia(constraints).then(
++              stream => {
++                if (video.deviceId != deviceId) {
++                  // The user has selected a different device or closed the panel
++                  // before getUserMedia finished.
++                  stream.getTracks().forEach(t => t.stop());
++                  return;
++                }
++                video.srcObject = stream;
++                video.stream = stream;
++                doc.getElementById("webRTC-preview").hidden = false;
++                video.onloadedmetadata = function(e) {
++                  video.play();
++                };
++              },
++              err => {
++                if (
++                  err.name == "OverconstrainedError" &&
++                  err.constraint == "deviceId"
++                ) {
++                  // Window has disappeared since enumeration, which can happen.
++                  // No preview for you.
++                  return;
++                }
++                Cu.reportError(
++                  `error in preview: ${err.message} ${err.constraint}`
++                );
+               }
+-              Cu.reportError(
+-                `error in preview: ${err.message} ${err.constraint}`
+-              );
+-            }
+-          );
++            );
++          }
+         };
+         menupopup.addEventListener("command", menupopup._commandEventListener);
+       }
+diff -up firefox-83.0/browser/locales/en-US/chrome/browser/browser.properties.pw6 firefox-83.0/browser/locales/en-US/chrome/browser/browser.properties
+--- firefox-83.0/browser/locales/en-US/chrome/browser/browser.properties.pw6	2020-11-12 19:04:30.000000000 +0100
++++ firefox-83.0/browser/locales/en-US/chrome/browser/browser.properties	2020-11-25 09:24:26.378857626 +0100
+@@ -764,6 +764,7 @@ getUserMedia.selectWindowOrScreen.label=
+ getUserMedia.selectWindowOrScreen.accesskey=W
+ getUserMedia.pickWindowOrScreen.label = Select Window or Screen
+ getUserMedia.shareEntireScreen.label = Entire screen
++getUserMedia.sharePipeWirePortal.label = Use operating system settings
+ # LOCALIZATION NOTE (getUserMedia.shareMonitor.label):
+ # %S is screen number (digits 1, 2, etc)
+ # Example: Screen 1, Screen 2,..
+diff -up firefox-83.0/third_party/libwebrtc/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.cc.pw6 firefox-83.0/third_party/libwebrtc/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.cc
+--- firefox-83.0/third_party/libwebrtc/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.cc.pw6	2020-11-25 09:24:26.358857788 +0100
++++ firefox-83.0/third_party/libwebrtc/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.cc	2020-11-25 09:24:26.378857626 +0100
+@@ -879,17 +879,17 @@ void BaseCapturerPipeWire::CaptureFrame(
    callback_->OnCaptureResult(Result::SUCCESS, std::move(result));
  }
  
++#define PIPEWIRE_ID   0xaffffff
++#define PIPEWIRE_NAME "####_PIPEWIRE_PORTAL_####"
++
  bool BaseCapturerPipeWire::GetSourceList(SourceList* sources) {
-@@ -832,9 +892,27 @@ bool BaseCapturerPipeWire::GetSourceList
+-  RTC_DCHECK(sources->size() == 0);
+-  // List of available screens is already presented by the xdg-desktop-portal.
+-  // But we have to add an empty source as the code expects it.
+-  sources->push_back({0});
++  sources->push_back({PIPEWIRE_ID, 0, PIPEWIRE_NAME});
    return true;
  }
  
  bool BaseCapturerPipeWire::SelectSource(SourceId id) {
    // Screen selection is handled by the xdg-desktop-portal.
-   return true;
+-  return true;
++  return id == PIPEWIRE_ID;
  }
  
-+// static
-+std::unique_ptr<DesktopCapturer>
-+BaseCapturerPipeWire::CreateRawScreenCapturer(
-+    const DesktopCaptureOptions& options) {
-+  std::unique_ptr<BaseCapturerPipeWire> capturer =
-+      std::make_unique<BaseCapturerPipeWire>(BaseCapturerPipeWire::CaptureSourceType::kAny);
-+  return std::move(capturer);}
-+
-+// static
-+std::unique_ptr<DesktopCapturer>
-+BaseCapturerPipeWire::CreateRawWindowCapturer(
-+    const DesktopCaptureOptions& options) {
-+
-+  std::unique_ptr<BaseCapturerPipeWire> capturer =
-+      std::make_unique<BaseCapturerPipeWire>(BaseCapturerPipeWire::CaptureSourceType::kAny);
-+  return std::move(capturer);
-+}
-+
- }  // namespace webrtc
-diff --git a/third_party/libwebrtc/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.h b/third_party/libwebrtc/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.h
---- a/third_party/libwebrtc/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.h
-+++ b/third_party/libwebrtc/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.h
-@@ -17,99 +17,103 @@
- #include <spa/param/video/format-utils.h>
- 
- #include "modules/desktop_capture/desktop_capture_options.h"
- #include "modules/desktop_capture/desktop_capturer.h"
- #include "rtc_base/constructormagic.h"
- 
- namespace webrtc {
- 
--class PipeWireType {
-- public:
--  spa_type_media_type media_type;
--  spa_type_media_subtype media_subtype;
--  spa_type_format_video format_video;
--  spa_type_video_format video_format;
--};
--
- class BaseCapturerPipeWire : public DesktopCapturer {
-  public:
--  enum CaptureSourceType { Screen = 1, Window };
-+  enum CaptureSourceType : uint32_t {
-+    kScreen = 0b01,
-+    kWindow = 0b10,
-+    kAny = 0b11
-+  };
- 
-   explicit BaseCapturerPipeWire(CaptureSourceType source_type);
-   ~BaseCapturerPipeWire() override;
- 
-   // DesktopCapturer interface.
-   void Start(Callback* delegate) override;
-   void CaptureFrame() override;
-   bool GetSourceList(SourceList* sources) override;
-   bool SelectSource(SourceId id) override;
- 
-+  static std::unique_ptr<DesktopCapturer> CreateRawScreenCapturer(
-+      const DesktopCaptureOptions& options);
-+
-+  static std::unique_ptr<DesktopCapturer> CreateRawWindowCapturer(
-+      const DesktopCaptureOptions& options);
-+
-  private:
-   // PipeWire types -->
-+  pw_context* pw_context_ = nullptr;
-   pw_core* pw_core_ = nullptr;
--  pw_type* pw_core_type_ = nullptr;
-   pw_stream* pw_stream_ = nullptr;
--  pw_remote* pw_remote_ = nullptr;
--  pw_loop* pw_loop_ = nullptr;
-   pw_thread_loop* pw_main_loop_ = nullptr;
--  PipeWireType* pw_type_ = nullptr;
- 
-+  spa_hook spa_core_listener_ = {};
-   spa_hook spa_stream_listener_ = {};
--  spa_hook spa_remote_listener_ = {};
- 
-+  pw_core_events pw_core_events_ = {};
-   pw_stream_events pw_stream_events_ = {};
--  pw_remote_events pw_remote_events_ = {};
- 
--  spa_video_info_raw* spa_video_format_ = nullptr;
-+  struct spa_video_info_raw spa_video_format_;
- 
-+  guint32 pw_stream_node_id_ = 0;
-   gint32 pw_fd_ = -1;
- 
-   CaptureSourceType capture_source_type_ =
--      BaseCapturerPipeWire::CaptureSourceType::Screen;
-+      BaseCapturerPipeWire::CaptureSourceType::kAny;
- 
-   // <-- end of PipeWire types
- 
-   GDBusConnection* connection_ = nullptr;
-   GDBusProxy* proxy_ = nullptr;
-   gchar* portal_handle_ = nullptr;
-   gchar* session_handle_ = nullptr;
-   gchar* sources_handle_ = nullptr;
-   gchar* start_handle_ = nullptr;
-   guint session_request_signal_id_ = 0;
-   guint sources_request_signal_id_ = 0;
-   guint start_request_signal_id_ = 0;
- 
-+  bool video_crop_size_initialized_ = false;
-+  DesktopSize video_crop_size_;;
-   DesktopSize desktop_size_ = {};
-   DesktopCaptureOptions options_ = {};
- 
--  uint8_t* current_frame_ = nullptr;
-+  std::unique_ptr<uint8_t[]> current_frame_;
-   Callback* callback_ = nullptr;
- 
-   bool portal_init_failed_ = false;
- 
-   void InitPortal();
-   void InitPipeWire();
--  void InitPipeWireTypes();
- 
--  void CreateReceivingStream();
-+  pw_stream* CreateReceivingStream();
-   void HandleBuffer(pw_buffer* buffer);
- 
-   void ConvertRGBxToBGRx(uint8_t* frame, uint32_t size);
- 
--  static void OnStateChanged(void* data,
--                             pw_remote_state old_state,
--                             pw_remote_state state,
--                             const char* error);
-+  static void SyncDmaBuf(int fd, uint64_t start_or_end);
-+  static void OnCoreError(void *data,
-+                          uint32_t id,
-+                          int seq,
-+                          int res,
-+                          const char *message);
-+  static void OnStreamParamChanged(void *data,
-+                                   uint32_t id,
-+                                   const struct spa_pod *format);
-   static void OnStreamStateChanged(void* data,
-                                    pw_stream_state old_state,
-                                    pw_stream_state state,
-                                    const char* error_message);
--
--  static void OnStreamFormatChanged(void* data, const struct spa_pod* format);
-   static void OnStreamProcess(void* data);
-   static void OnNewBuffer(void* data, uint32_t id);
- 
-   guint SetupRequestResponseSignal(const gchar* object_path,
-                                    GDBusSignalCallback callback);
- 
-   static void OnProxyRequested(GObject* object,
-                                GAsyncResult* result,
-diff --git a/third_party/libwebrtc/webrtc/modules/desktop_capture/linux/screen_capturer_pipewire.cc b/third_party/libwebrtc/webrtc/modules/desktop_capture/linux/screen_capturer_pipewire.cc
---- a/third_party/libwebrtc/webrtc/modules/desktop_capture/linux/screen_capturer_pipewire.cc
-+++ b/third_party/libwebrtc/webrtc/modules/desktop_capture/linux/screen_capturer_pipewire.cc
-@@ -10,17 +10,17 @@
- 
- #include "modules/desktop_capture/linux/screen_capturer_pipewire.h"
- 
- #include <memory>
- 
- namespace webrtc {
- 
- ScreenCapturerPipeWire::ScreenCapturerPipeWire()
--    : BaseCapturerPipeWire(BaseCapturerPipeWire::CaptureSourceType::Screen) {}
-+    : BaseCapturerPipeWire(BaseCapturerPipeWire::CaptureSourceType::kScreen) {}
- ScreenCapturerPipeWire::~ScreenCapturerPipeWire() {}
- 
  // static
- std::unique_ptr<DesktopCapturer>
- ScreenCapturerPipeWire::CreateRawScreenCapturer(
-     const DesktopCaptureOptions& options) {
-   return std::make_unique<ScreenCapturerPipeWire>();
- }
-diff --git a/third_party/libwebrtc/webrtc/modules/desktop_capture/linux/window_capturer_pipewire.cc b/third_party/libwebrtc/webrtc/modules/desktop_capture/linux/window_capturer_pipewire.cc
---- a/third_party/libwebrtc/webrtc/modules/desktop_capture/linux/window_capturer_pipewire.cc
-+++ b/third_party/libwebrtc/webrtc/modules/desktop_capture/linux/window_capturer_pipewire.cc
-@@ -10,17 +10,17 @@
- 
- #include "modules/desktop_capture/linux/window_capturer_pipewire.h"
- 
- #include <memory>
- 
- namespace webrtc {
- 
- WindowCapturerPipeWire::WindowCapturerPipeWire()
--    : BaseCapturerPipeWire(BaseCapturerPipeWire::CaptureSourceType::Window) {}
-+    : BaseCapturerPipeWire(BaseCapturerPipeWire::CaptureSourceType::kWindow) {}
- WindowCapturerPipeWire::~WindowCapturerPipeWire() {}
- 
- // static
- std::unique_ptr<DesktopCapturer>
- WindowCapturerPipeWire::CreateRawWindowCapturer(
-     const DesktopCaptureOptions& options) {
-   return std::make_unique<WindowCapturerPipeWire>();
- }
-diff --git a/third_party/libwebrtc/webrtc/modules/desktop_capture/screen_capturer_linux.cc b/third_party/libwebrtc/webrtc/modules/desktop_capture/screen_capturer_linux.cc
---- a/third_party/libwebrtc/webrtc/modules/desktop_capture/screen_capturer_linux.cc
-+++ b/third_party/libwebrtc/webrtc/modules/desktop_capture/screen_capturer_linux.cc
-@@ -21,17 +21,17 @@
- 
- namespace webrtc {
- 
- // static
- std::unique_ptr<DesktopCapturer> DesktopCapturer::CreateRawScreenCapturer(
-     const DesktopCaptureOptions& options) {
- #if defined(WEBRTC_USE_PIPEWIRE)
-   if (options.allow_pipewire() && DesktopCapturer::IsRunningUnderWayland()) {
--    return ScreenCapturerPipeWire::CreateRawScreenCapturer(options);
-+    return BaseCapturerPipeWire::CreateRawScreenCapturer(options);
-   }
- #endif  // defined(WEBRTC_USE_PIPEWIRE)
- 
- #if defined(USE_X11)
-   return ScreenCapturerX11::CreateRawScreenCapturer(options);
- #endif  // defined(USE_X11)
- 
-   return nullptr;
-diff --git a/third_party/libwebrtc/webrtc/modules/desktop_capture/window_capturer_linux.cc b/third_party/libwebrtc/webrtc/modules/desktop_capture/window_capturer_linux.cc
---- a/third_party/libwebrtc/webrtc/modules/desktop_capture/window_capturer_linux.cc
-+++ b/third_party/libwebrtc/webrtc/modules/desktop_capture/window_capturer_linux.cc
-@@ -21,17 +21,17 @@
- 
- namespace webrtc {
- 
- // static
- std::unique_ptr<DesktopCapturer> DesktopCapturer::CreateRawWindowCapturer(
-     const DesktopCaptureOptions& options) {
- #if defined(WEBRTC_USE_PIPEWIRE)
-   if (options.allow_pipewire() && DesktopCapturer::IsRunningUnderWayland()) {
--    return WindowCapturerPipeWire::CreateRawWindowCapturer(options);
-+    return BaseCapturerPipeWire::CreateRawWindowCapturer(options);
-   }
- #endif  // defined(WEBRTC_USE_PIPEWIRE)
- 
- #if defined(USE_X11)
-   return WindowCapturerX11::CreateRawWindowCapturer(options);
- #endif  // defined(USE_X11)
- 
-   return nullptr;
--- a/mozilla-reduce-rust-debuginfo.patch	Thu Dec 10 14:36:59 2020 +0100
+++ b/mozilla-reduce-rust-debuginfo.patch	Sun Dec 27 10:49:49 2020 +0100
@@ -3,7 +3,7 @@
 # Date 1560754926 -7200
 #      Mon Jun 17 09:02:06 2019 +0200
 # Node ID 428161c3b9599083e1b8710eda1760f1f707ab11
-# Parent  83625bab561d09fb68aa2c71cea7cbafd9ec09b4
+# Parent  f5e9431a99bb1d122ccd76411f08ac6f3236c19f
 #Description: reduce the rust debuginfo level on selected architectures where
 # compiling with debuginfo=2 causes the OOM killer to interrupt the build on
 # launchpad builders. Initially this was only on 32 bit architectures, but with
@@ -12,18 +12,19 @@
 diff --git a/build/moz.configure/toolchain.configure b/build/moz.configure/toolchain.configure
 --- a/build/moz.configure/toolchain.configure
 +++ b/build/moz.configure/toolchain.configure
-@@ -1823,18 +1823,18 @@ imply_option('RUSTC_OPT_LEVEL', '2', whe
- @depends('RUSTC_OPT_LEVEL', moz_optimize)
+@@ -2138,19 +2138,19 @@ imply_option("RUSTC_OPT_LEVEL", "2", whe
  def rustc_opt_level(opt_level_option, moz_optimize):
      if opt_level_option:
          return opt_level_option[0]
      else:
-         return '1' if moz_optimize.optimize else '0'
+         return "1" if moz_optimize.optimize else "0"
  
  
--@depends(rustc_opt_level, debug_rust, '--enable-debug-symbols', '--enable-frame-pointers')
+ @depends(
+-    rustc_opt_level, debug_rust, "--enable-debug-symbols", "--enable-frame-pointers"
++    rustc_opt_level, debug_rust, "--enable-debug-symbols", "--enable-frame-pointers", host
+ )
 -def rust_compile_flags(opt_level, debug_rust, debug_symbols, frame_pointers):
-+@depends(rustc_opt_level, debug_rust, '--enable-debug-symbols', '--enable-frame-pointers', host)
 +def rust_compile_flags(opt_level, debug_rust, debug_symbols, frame_pointers, host):
      # Cargo currently supports only two interesting profiles for building:
      # development and release. Those map (roughly) to --enable-debug and
@@ -33,22 +34,22 @@
      # optimization level. Since Cargo only supports 2 profiles, we're in
      # a bit of a bind.
      #
-@@ -1847,16 +1847,18 @@ def rust_compile_flags(opt_level, debug_
+@@ -2163,16 +2163,18 @@ def rust_compile_flags(opt_level, debug_
  
      # opt-level=0 implies -C debug-assertions, which may not be desired
      # unless Rust debugging is enabled.
-     if opt_level == '0' and not debug_rust:
+     if opt_level == "0" and not debug_rust:
          debug_assertions = False
  
      if debug_symbols:
-         debug_info = '2'
+         debug_info = "2"
 +        if host.bitness == 32 or host.cpu == 'aarch64' or host.cpu == 'ppc64':
 +            debug_info = '1'
  
      opts = []
  
      if opt_level is not None:
-         opts.append('opt-level=%s' % opt_level)
+         opts.append("opt-level=%s" % opt_level)
      if debug_assertions is not None:
-         opts.append('debug-assertions=%s' %
-                     ('yes' if debug_assertions else 'no'))
+         opts.append("debug-assertions=%s" % ("yes" if debug_assertions else "no"))
+     if debug_info is not None:
--- a/revert-795c8762b16b.patch	Thu Dec 10 14:36:59 2020 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,25 +0,0 @@
-diff --git a/build/moz.configure/lto-pgo.configure b/build/moz.configure/lto-pgo.configure
---- a/build/moz.configure/lto-pgo.configure
-+++ b/build/moz.configure/lto-pgo.configure
-@@ -224,17 +224,20 @@ def lto(value, c_compiler, ld64_known_go
-             #
-             # https://github.com/llvm/llvm-project/blob/e7694f34ab6a12b8bb480cbfcb396d0a64fe965f/llvm/lib/Target/X86/X86.td#L1165-L1187
-             if target.cpu == 'x86_64':
-                 ldflags.append('-mllvm:-mcpu=x86-64')
-             # We do not need special flags for arm64.  Hooray for fixed-length
-             # instruction sets.
-         else:
-             num_cores = multiprocessing.cpu_count()
--            cflags.append("-flto")
-+            if len(value) and value[0].lower() == 'full':
-+                cflags.append("-flto")
-+            else:
-+                cflags.append("-flto=thin")
-             cflags.append("-flifetime-dse=1")
- 
-             ldflags.append("-flto=%s" % num_cores)
-             ldflags.append("-flifetime-dse=1")
- 
-         # Tell LTO not to inline functions above a certain size, to mitigate
-         # binary size growth while still getting good performance.
-         # (For hot functions, PGO will put a multiplier on this limit.)
--- a/series	Thu Dec 10 14:36:59 2020 +0100
+++ b/series	Sun Dec 27 10:49:49 2020 +0100
@@ -7,6 +7,7 @@
 mozilla-fix-aarch64-libopus.patch
 mozilla-disable-wasm-emulate-arm-unaligned-fp-access.patch
 mozilla-s390-context.patch
+mozilla-pgo.patch
 mozilla-reduce-rust-debuginfo.patch
 mozilla-bmo1005535.patch
 mozilla-bmo1568145.patch
@@ -24,7 +25,6 @@
 mozilla-bmo1626236.patch
 mozilla-s390x-skia-gradient.patch
 mozilla-libavcodec58_91.patch
-#revert-795c8762b16b.patch
 
 # Firefox patches
 firefox-kde.patch