1 files changed, 77 insertions, 10 deletions

diff --git a/PKGBUILD b/PKGBUILD
index f48102a..4c324a0 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -14,8 +14,11 @@
 # Arch version enables debug symbols
 # Arch version lacks privacy and security by default
 
+_modclang=0
+#_modclang=1 # FIXME
+
 pkgname=firefox
-pkgver=69.0.1
+pkgver=69.0.3
 pkgrel=1
 pkgdesc="Standalone web browser from mozilla.org"
 arch=(x86_64)
@@ -40,18 +43,24 @@ source=("https://archive.mozilla.org/pub/$pkgname/releases/$pkgver/source/$pkgna
         $pkgname.desktop $pkgname-symbolic.svg
         distribution.ini
         mozconfig.in
+        mozconfig.in.clang
+        mozconfig.in.clang.pgo
         mozconfig.common.override
+        no-relinking.patch
         0001-Use-remoting-name-for-GDK-application-names.patch
         pgo-1.patch
         moz.configure.diff
         package-manifest.diff)
-sha256sums=('f5f2f592b8296812d43244d6a50c0c57ad11a5324db8e4e79749545482b79033'
+sha256sums=('7527947a876c1734b8b2339f19b8ff8da6f4e4d06351b44940cb48d3509bb891'
             'SKIP'
-            '54dcf5e1b91db3f586a7e27814552f96578b9d9495b7b10b268e36f64b49d4d1'
+            'a9e5264257041c0b968425b5c97436ba48e8d294e1a0f02c59c35461ea245c33'
             '9a1a572dc88014882d54ba2d3079a1cf5b28fa03c5976ed2cb763c93dabbd797'
             '0ba4d1a619a3a5750a5a48c6bff8c6a69d3aa4be4c303032c5979ab5f68db208'
             '1cc0730e0f0285f45f30feeeee6d7757931b25263b35b041abd71c2e0486210d'
+            '0194afec7fa92b08b1583037e2042cbc024238878c3fcb7a4b5b1a61d1274412'
+            'b6027c19e7f95ec5c81272b6a2680ca0ffb2d6a520ab8c5f586e9642ee16e351'
             'dcf70d24eedab79d811974a75663f0e84c5efca420da61fc444ebe311d0cada9'
+            '2dc9d1aa5eb7798c89f46478f254ae61e4122b4d1956d6044426288627d8a014'
             'ab07ab26617ff76fce68e07c66b8aa9b96c2d3e5b5517e51a3c3eac2edd88894'
             'a8c15c9d54ef8b360c0932f4ccf5e74954f14e9a9c2a1ae924b6c392075b2b8c'
             'ad8a270e1b2affb098440f82517c3952207b28ebf604fef695dad3e29a5ba30e'
@@ -62,14 +71,24 @@ prepare() {
 #   mkdir mozbuild
   cd ${pkgname}-${pkgver}
 
+  # Avoid relinking during buildsymbols
+  patch -Np1 -i ../no-relinking.patch
+
   # https://bugzilla.mozilla.org/show_bug.cgi?id=1530052
   patch -Np1 -i ../0001-Use-remoting-name-for-GDK-application-names.patch
 
-  # Apply pgo patches
-  patch -p0 $srcdir/${pkgname}-${pkgver}/security/sandbox/linux/moz.build $srcdir/pgo-1.patch
+  if [ "${_modclang}" != "1" ]; then
+    # Apply gcc pgo patches
+    patch -p0 $srcdir/${pkgname}-${pkgver}/security/sandbox/linux/moz.build $srcdir/pgo-1.patch
+  fi
 
-  # Add the custom mozconfig
-  cp $srcdir/mozconfig.in $srcdir/${pkgname}-${pkgver}/.mozconfig
+  if [ "${_modclang}" == "1" ]; then
+    # Add the custom mozconfig for pgo
+    cp $srcdir/mozconfig.in.clang.pgo $srcdir/${pkgname}-${pkgver}/.mozconfig
+  else
+    # Add the custom mozconfig
+    cp $srcdir/mozconfig.in $srcdir/${pkgname}-${pkgver}/.mozconfig
+  fi
 
   # MOZ_TELEMETRY_REPORTING only applied correctly when set in this override file
   cp $srcdir/mozconfig.common.override $srcdir/${pkgname}-${pkgver}/build/mozconfig.common.override
@@ -98,12 +117,58 @@ build() {
 
   export MOZ_NOSPAM=1
   export MOZBUILD_STATE_PATH="$srcdir/mozbuild"
+
   export CFLAGS="$CFLAGS -O3 -fstack-protector-all -fPIC"
   export CXXFLAGS="$CXXFLAGS -O3 -fstack-protector-all -fPIC"
+
   # LTO needs more open files
   ulimit -n 4096
-  msg2 "Building browser..."
-  xvfb-run -a -n 97 -s "-screen 0 1600x1200x24" ./mach build
+
+  if [ "${_modclang}" == "1" ]; then
+  # clang does not support -fstack-clash-protection, so remove it
+  export CFLAGS="$(echo $CFLAGS | sed 's/ -fstack-clash-protection//' - )"
+  export CXXFLAGS="$(echo $CXXFLAGS | sed 's/ -fstack-clash-protection//' - )"
+#  # -fno-plt with cross-LTO causes obscure LLVM errors
+#  # LLVM ERROR: Function Import: link error
+#  CFLAGS="${CFLAGS/-fno-plt/}"
+#  CXXFLAGS="${CXXFLAGS/-fno-plt/}"
+
+  # Do 3-tier PGO
+  msg2 "Building instrumented browser..."
+  ./mach build
+
+  msg2 "Profiling instrumented browser..."
+  ./mach package
+  LLVM_PROFDATA=llvm-profdata \
+    JARLOG_FILE="$PWD/jarlog" \
+    xvfb-run -a -n 92 -s "-screen 0 1600x1200x24" \
+    ./mach python build/pgo/profileserver.py
+
+  if ! compgen -G '*.profraw' >&2; then
+    error "No profile data produced."
+    return 1
+  fi
+
+  if [[ ! -s jarlog ]]; then
+    error "No jar log produced."
+    return 1
+  fi
+
+  msg2 "Removing instrumented browser..."
+  ./mach clobber
+
+  msg2 "Building optimized browser..."
+  # Add the custom mozconfig
+  cp $srcdir/mozconfig.in.clang $srcdir/${pkgname}-${pkgver}/.mozconfig
+  cat >.mozconfig - <<END
+ac_add_options --with-pgo-profile-path=${PWD@Q}
+ac_add_options --with-pgo-jarlog=${PWD@Q}/jarlog
+END
+  ./mach build
+  else
+    msg2 "Building optimized browser..."
+    xvfb-run -a -n 97 -s "-screen 0 1600x1200x24" ./mach build
+  fi
 
   msg2 "Building symbol archive..."
   ./mach buildsymbols
@@ -121,6 +186,9 @@ package() {
   rm "$pkgdir/usr/bin/firefox"
   ln -s "/usr/lib/$pkgname/firefox" "$pkgdir/usr/bin/firefox"
 
+  find . -name '*crashreporter-symbols-full.zip' -exec \
+  cp -fvt "$startdir" {} +
+
 
   # icons
   for i in 16 22 24 32 48 64 128 256; do
@@ -137,5 +205,4 @@ package() {
   # install desktop file
   install -Dm644 ../$pkgname.desktop \
     "$pkgdir/usr/share/applications/$pkgname.desktop"
-
 }