sources/include.sh

   1 #!/bin/bash
   2
   3 # Architecture
   4
   5 ARCH=armv4tl
   6 KARCH=arm
   7 ARCH_NAME="$ARCH"
   8 STAGE_NAME="native"
   9
  10 # Directory layout
  11 TOP=`pwd`
  12 export SOURCES="${TOP}/sources"
  13 export SCRIPTS="${SOURCES}/scripts"
  14 export SRCDIR="${TOP}/packages"
  15 export ROOT_DIR="${TOP}/rootfs"
  16 export ROOT_OVERLAY="${TOP}/rootfs-overlay"
  17 export BUILD="${TOP}/build"
  18 export CONFIG_DIR="${TOP}/sources/configs"
  19 export WORK="${BUILD}/temp-${ARCH}"
  20 export STAGING_DIR="${TOP}/staging-dir"
  21
  22 # Default flags to point the compiler to the right libraries and
  23 # include files. In the case of cross compiling this assumes that
  24 # the compiler doesn't add system directories to it's search paths.
  25 # This is taken care of by a gcc wrapper script which passes things
  26 # like -nostdinc -nostdlibs -nodefaultlibs to gcc.
  27
  28 CFLAGS_HEADERS="-I$STAGING_DIR/usr/include"
  29
  30 CFLAGS="$CFLAGS_HEADERS -pipe -march=armv4t -mtune=arm920t"
  31
  32 if [ -z "$DEBUG" ]; then
  33   CFLAGS="$CFLAGS -Os"
  34 else
  35   CFLAGS="$CFLAGS -O0 -g -ggdb"
  36 fi
  37
  38 CFLAGS="$CFLAGS -ffunction-sections -fdata-sections"
  39
  40 LDFLAGS="-Wl,--gc-section"
  41
  42 # Make sure that pkg-config uses the right paths and doesn't pull
  43 # in depencies from the host system.
  44 export PKG_CONFIG_PATH="${STAGING_DIR}/usr/lib/pkgconfig"
  45 export PKG_CONFIG_LIBDIR="${STAGING_DIR}/usr/lib/pkgconfig"
  46 export PKG_CONFIG_SYSROOT_DIR="${STAGING_DIR}"
  47
  48 # check if we are building natively or if we are cross compiling
  49
  50 if [[ ! $(uname -m) == arm* ]]
  51 then
  52   STAGE_NAME="cross"
  53   CROSS_CONFIGURE_FLAGS="--build=`$SCRIPTS/config.guess` \
  54         --target=armv4tl-unknown-linux-gnueabi \
  55         --host=armv4tl-unknown-linux-gnueabi"
  56   # cross compiler prefix used by kernel, uclibc and busybox
  57   # build system
  58   [ -z "$CROSS" ] && CROSS="armv4tl-"
  59 fi
  60
  61 STRIP="${CROSS}strip"
  62 [ -z "$CC" ] && export CC="${CROSS}gcc"
  63
  64 # tell the compiler wrapper to link against the libc from
  65 # $STAGING_DIR and not against the one from the toolchain
  66
  67 export CCWRAP_TOPDIR="$STAGING_DIR/usr"
  68
  69 umask 022
  70
  71 # Tell bash not to cache the $PATH because we modify it.  Without
  72 # this, bash won't find new executables added after startup.
  73 set +h
  74
  75 [ -e config ] && source config
  76 source sources/functions-fwl.sh
  77 source sources/functions.sh
  78
  79 # How many processors should make -j use?
  80
  81 if [ -z "$CPUS" ]
  82 then
  83   export CPUS=$(echo /sys/devices/system/cpu/cpu[0-9]* | wc -w)
  84   [ "$CPUS" -lt 1 ] && CPUS=1
  85 fi
  86
  87 export MAKEFLAGS="-j $CPUS"
  88
  89 # This is an if instead of && so the exit code of include.sh is reliably 0
  90 if [ ! -z "$BUILD_VERBOSE" ]
  91 then
  92   VERBOSITY="V=1"
  93 fi