install-build-deps: support debian armhf packages

build/install-build-deps.sh

 #!/bin/bash -e
 
 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # Script to install everything needed to build chromium (well, ideally, anyway)
 # See https://chromium.googlesource.com/chromium/src/+/master/docs/linux_build_instructions.md
 
 usage() {
   echo "Usage: $0 [--options]"
   echo "Options:"
   echo "--[no-]syms: enable or disable installation of debugging symbols"
   echo "--lib32: enable installation of 32-bit libraries, e.g. for V8 snapshot"
   echo "--[no-]arm: enable or disable installation of arm cross toolchain"
   echo "--[no-]chromeos-fonts: enable or disable installation of Chrome OS"\
        "fonts"
   echo "--[no-]nacl: enable or disable installation of prerequisites for"\
        "building standalone NaCl and all its toolchains"
   echo "--no-prompt: silently select standard options/defaults"
   echo "--quick-check: quickly try to determine if dependencies are installed"
   echo "               (this avoids interactive prompts and sudo commands,"
   echo "               so might not be 100% accurate)"
   echo "--unsupported: attempt installation even on unsupported systems"
   echo "Script will prompt interactively if options not given."
   exit 1
 }
 
+# Waits for the user to press 'Y' or 'N'. Either uppercase of lowercase is
+# accepted. Returns 0 for 'Y' and 1 for 'N'. If an optional parameter has
+# been provided to yes_no(), the function also accepts RETURN as a user input.
+# The parameter specifies the exit code that should be returned in that case.
+# The function will echo the user's selection followed by a newline character.
+# Users can abort the function by pressing CTRL-C. This will call "exit 1".
+yes_no() {
+  if [ 0 -ne "${do_default-0}" ] ; then
+    [ $1 -eq 0 ] && echo "Y" || echo "N"
+    return $1
+  fi
+  local c
+  while :; do
+    c="$(trap 'stty echo -iuclc icanon 2>/dev/null' EXIT INT TERM QUIT
+         stty -echo iuclc -icanon 2>/dev/null
+         dd count=1 bs=1 2>/dev/null | od -An -tx1)"
+    case "$c" in
+      " 0a") if [ -n "$1" ]; then
+               [ $1 -eq 0 ] && echo "Y" || echo "N"
+               return $1
+             fi
+             ;;
+      " 79") echo "Y"
+             return 0
+             ;;
+      " 6e") echo "N"
+             return 1
+             ;;
+      "")    echo "Aborted" >&2
+             exit 1
+             ;;
+      *)     # The user pressed an unrecognized key. As we are not echoing
+             # any incorrect user input, alert the user by ringing the bell.
+             (tput bel) 2>/dev/null
+             ;;
+    esac
+  done
+}
+
 # Checks whether a particular package is available in the repos.
 # USAGE: $ package_exists <package name>
 package_exists() {
   apt-cache pkgnames | grep -x "$1" > /dev/null 2>&1
 }
 
 # These default to on because (some) bots need them and it keeps things
 # simple for the bot setup if all bots just run the script in its default
 # mode.  Developers who don't want stuff they don't need installed on their
 # own workstations can pass --no-arm --no-nacl when running the script.
@@ skipping 106 matching lines @@
 elif [ "x$lsb_release" = "xtrusty" ]; then
   dbg_list="${dbg_list} libstdc++6-4.8-dbg"
 else
   dbg_list="${dbg_list} libstdc++6-4.9-dbg"
 fi
 
 # 32-bit libraries needed e.g. to compile V8 snapshot for Android or armhf
 lib32_list="linux-libc-dev:i386"
 
 # arm cross toolchain packages needed to build chrome on armhf
-arm_list="libc6-dev-armhf-cross
-          linux-libc-dev-armhf-cross
-          g++-arm-linux-gnueabihf"
+EM_REPO="deb http://emdebian.org/tools/debian/ jessie main"
+EM_SOURCE=$(cat <<EOF
+# Repo added by Chromium $0
+${EM_REPO}
+# deb-src http://emdebian.org/tools/debian/ jessie main
+EOF
+)
+EM_ARCHIVE_KEY_FINGER="084C6C6F39159EDB67969AA87DE089671804772E"
+GPP_ARM_PACKAGE="g++-arm-linux-gnueabihf"
+case $lsb_release in
+  "jessie")
+    eval $(apt-config shell APT_SOURCESDIR 'Dir::Etc::sourceparts/d')
+    CROSSTOOLS_LIST="${APT_SOURCESDIR}/crosstools.list"
+    arm_list="libc6-dev:armhf
+              linux-libc-dev:armhf"
+    if test "$do_inst_arm" = "1"; then
+      if $(dpkg-query -W ${GPP_ARM_PACKAGE} &>/dev/null); then
+        arm_list+=" ${GPP_ARM_PACKAGE}"
+      else
+        echo "The Debian Cross-toolchains repository is necessary to"
+        echo "cross-compile Chromium for arm."
+        echo -n "Do you want me to add it for you (y/N) "
+        if yes_no 1; then
+          gpg --keyserver pgp.mit.edu --recv-keys ${EM_ARCHIVE_KEY_FINGER}
+          gpg -a --export ${EM_ARCHIVE_KEY_FINGER} | sudo apt-key add -
+          if ! grep "^${EM_REPO}" "${CROSSTOOLS_LIST}" &>/dev/null; then
+            echo "${EM_SOURCE}" | sudo tee -a "${CROSSTOOLS_LIST}" >/dev/null
+          fi
+          arm_list+=" ${GPP_ARM_PACKAGE}"
+        fi
+      fi
+    fi
+    ;;
+  *)
+    arm_list="libc6-dev-armhf-cross
+              linux-libc-dev-armhf-cross
+              ${GPP_ARM_PACKAGE}"
+    ;;
+esac
 
 # Work around for dependency issue Ubuntu/Trusty: http://crbug.com/435056
 case $lsb_release in
   trusty)
     arm_list+=" g++-4.8-multilib-arm-linux-gnueabihf
                 gcc-4.8-multilib-arm-linux-gnueabihf"
     ;;
   wily)
     arm_list+=" g++-5-multilib-arm-linux-gnueabihf
                 gcc-5-multilib-arm-linux-gnueabihf
@@ skipping 110 matching lines @@
 if file -L /sbin/init | grep -q 'ELF 64-bit'; then
   # gcc-multilib conflicts with the arm cross compiler (at least in trusty) but
   # g++-X.Y-multilib gives us the 32-bit support that we need. Find out the
   # appropriate value of X and Y by seeing what version the current
   # distribution's g++-multilib package depends on.
   multilib_package=$(apt-cache depends g++-multilib --important | \
       grep -E --color=never --only-matching '\bg\+\+-[0-9.]+-multilib\b')
   lib32_list="$lib32_list $multilib_package"
 fi
 
-# Waits for the user to press 'Y' or 'N'. Either uppercase of lowercase is
-# accepted. Returns 0 for 'Y' and 1 for 'N'. If an optional parameter has
-# been provided to yes_no(), the function also accepts RETURN as a user input.
-# The parameter specifies the exit code that should be returned in that case.
-# The function will echo the user's selection followed by a newline character.
-# Users can abort the function by pressing CTRL-C. This will call "exit 1".
-yes_no() {
-  if [ 0 -ne "${do_default-0}" ] ; then
-    [ $1 -eq 0 ] && echo "Y" || echo "N"
-    return $1
-  fi
-  local c
-  while :; do
-    c="$(trap 'stty echo -iuclc icanon 2>/dev/null' EXIT INT TERM QUIT
-         stty -echo iuclc -icanon 2>/dev/null
-         dd count=1 bs=1 2>/dev/null | od -An -tx1)"
-    case "$c" in
-      " 0a") if [ -n "$1" ]; then
-               [ $1 -eq 0 ] && echo "Y" || echo "N"
-               return $1
-             fi
-             ;;
-      " 79") echo "Y"
-             return 0
-             ;;
-      " 6e") echo "N"
-             return 1
-             ;;
-      "")    echo "Aborted" >&2
-             exit 1
-             ;;
-      *)     # The user pressed an unrecognized key. As we are not echoing
-             # any incorrect user input, alert the user by ringing the bell.
-             (tput bel) 2>/dev/null
-             ;;
-    esac
-  done
-}
-
 if test "$do_inst_syms" = "" && test 0 -eq ${do_quick_check-0}
 then
   echo "This script installs all tools and libraries needed to build Chromium."
   echo ""
   echo "For most of the libraries, it can also install debugging symbols, which"
   echo "will allow you to debug code in the system libraries. Most developers"
   echo "won't need these symbols."
   echo -n "Do you want me to install them for you (y/N) "
   if yes_no 1; then
     do_inst_syms=1
@@ skipping 60 matching lines @@
     fi
     exit 1
   fi
   exit 0
 fi
 
 if test "$do_inst_lib32" = "1" || test "$do_inst_nacl" = "1"; then
   if [[ ! $lsb_release =~ (precise) ]]; then
     sudo dpkg --add-architecture i386
   fi
+  if [[ $lsb_release = "jessie" ]]; then
+    sudo dpkg --add-architecture armhf
+  fi
 fi
 sudo apt-get update
 
 # We initially run "apt-get" with the --reinstall option and parse its output.
 # This way, we can find all the packages that need to be newly installed
 # without accidentally promoting any packages from "auto" to "manual".
 # We then re-run "apt-get" with just the list of missing packages.
 echo "Finding missing packages..."
 # Intentionally leaving $packages unquoted so it's more readable.
 echo "Packages required: " $packages
@@ skipping 74 matching lines @@
   # only contains libcrypto.so.1.0.0 and not the symlink needed for
   # linking (libcrypto.so).
   create_library_symlink /lib/i386-linux-gnu/libcrypto.so.1.0.0 \
       /usr/lib/i386-linux-gnu/libcrypto.so
 
   create_library_symlink /lib/i386-linux-gnu/libssl.so.1.0.0 \
       /usr/lib/i386-linux-gnu/libssl.so
 else
   echo "Skipping symbolic links for NaCl."
 fi