diff options
Diffstat (limited to 'import-layers/yocto-poky/meta/classes/icecc.bbclass')
| -rw-r--r-- | import-layers/yocto-poky/meta/classes/icecc.bbclass | 333 |
1 files changed, 333 insertions, 0 deletions
diff --git a/import-layers/yocto-poky/meta/classes/icecc.bbclass b/import-layers/yocto-poky/meta/classes/icecc.bbclass new file mode 100644 index 000000000..e1c06c49c --- /dev/null +++ b/import-layers/yocto-poky/meta/classes/icecc.bbclass @@ -0,0 +1,333 @@ +# IceCream distributed compiling support +# +# Stages directories with symlinks from gcc/g++ to icecc, for both +# native and cross compilers. Depending on each configure or compile, +# the directories are added at the head of the PATH list and ICECC_CXX +# and ICEC_CC are set. +# +# For the cross compiler, creates a tar.gz of our toolchain and sets +# ICECC_VERSION accordingly. +# +# The class now handles all 3 different compile 'stages' (i.e native ,cross-kernel and target) creating the +# necessary environment tar.gz file to be used by the remote machines. +# It also supports meta-toolchain generation +# +# If ICECC_PATH is not set in local.conf then the class will try to locate it using 'bb.utils.which' +# but nothing is sure ;) +# +# If ICECC_ENV_EXEC is set in local.conf, then it should point to the icecc-create-env script provided by the user +# or the default one provided by icecc-create-env.bb will be used +# (NOTE that this is a modified version of the script need it and *not the one that comes with icecc* +# +# User can specify if specific packages or packages belonging to class should not use icecc to distribute +# compile jobs to remote machines, but handled locally, by defining ICECC_USER_CLASS_BL and ICECC_USER_PACKAGE_BL +# with the appropriate values in local.conf. In addition the user can force to enable icecc for packages +# which set an empty PARALLEL_MAKE variable by defining ICECC_USER_PACKAGE_WL. +# +######################################################################################### +#Error checking is kept to minimum so double check any parameters you pass to the class +########################################################################################### + +BB_HASHBASE_WHITELIST += "ICECC_PARALLEL_MAKE ICECC_DISABLED ICECC_USER_PACKAGE_BL ICECC_USER_CLASS_BL ICECC_USER_PACKAGE_WL ICECC_PATH ICECC_ENV_EXEC" + +ICECC_ENV_EXEC ?= "${STAGING_BINDIR_NATIVE}/icecc-create-env" + +def icecc_dep_prepend(d): + # INHIBIT_DEFAULT_DEPS doesn't apply to the patch command. Whether or not + # we need that built is the responsibility of the patch function / class, not + # the application. + if not d.getVar('INHIBIT_DEFAULT_DEPS', False): + return "icecc-create-env-native" + return "" + +DEPENDS_prepend += "${@icecc_dep_prepend(d)} " + +def get_cross_kernel_cc(bb,d): + kernel_cc = d.getVar('KERNEL_CC', False) + + # evaluate the expression by the shell if necessary + if '`' in kernel_cc or '$(' in kernel_cc: + kernel_cc = os.popen("echo %s" % kernel_cc).read()[:-1] + + kernel_cc = d.expand(kernel_cc) + kernel_cc = kernel_cc.replace('ccache', '').strip() + kernel_cc = kernel_cc.split(' ')[0] + kernel_cc = kernel_cc.strip() + return kernel_cc + +def get_icecc(d): + return d.getVar('ICECC_PATH', False) or bb.utils.which(os.getenv("PATH"), "icecc") + +def create_path(compilers, bb, d): + """ + Create Symlinks for the icecc in the staging directory + """ + staging = os.path.join(d.expand('${STAGING_BINDIR}'), "ice") + if icecc_is_kernel(bb, d): + staging += "-kernel" + + #check if the icecc path is set by the user + icecc = get_icecc(d) + + # Create the dir if necessary + try: + os.stat(staging) + except: + try: + os.makedirs(staging) + except: + pass + + for compiler in compilers: + gcc_path = os.path.join(staging, compiler) + try: + os.stat(gcc_path) + except: + try: + os.symlink(icecc, gcc_path) + except: + pass + + return staging + +def use_icecc(bb,d): + if d.getVar('ICECC_DISABLED', False) == "1": + # don't even try it, when explicitly disabled + return "no" + + # allarch recipes don't use compiler + if icecc_is_allarch(bb, d): + return "no" + + pn = d.getVar('PN', True) + + system_class_blacklist = [] + user_class_blacklist = (d.getVar('ICECC_USER_CLASS_BL', False) or "none").split() + package_class_blacklist = system_class_blacklist + user_class_blacklist + + for black in package_class_blacklist: + if bb.data.inherits_class(black, d): + bb.debug(1, "%s: class %s found in blacklist, disable icecc" % (pn, black)) + return "no" + + # "system" recipe blacklist contains a list of packages that can not distribute compile tasks + # for one reason or the other + # this is the old list (which doesn't seem to be valid anymore, because I was able to build + # all these with icecc enabled) + # system_package_blacklist = [ "uclibc", "glibc", "gcc", "bind", "u-boot", "dhcp-forwarder", "enchant", "connman", "orbit2" ] + # when adding new entry, please document why (how it failed) so that we can re-evaluate it later + # e.g. when there is new version + # building libgcc-initial with icecc fails with CPP sanity check error if host sysroot contains cross gcc built for another target tune/variant + system_package_blacklist = ["libgcc-initial"] + user_package_blacklist = (d.getVar('ICECC_USER_PACKAGE_BL', False) or "").split() + user_package_whitelist = (d.getVar('ICECC_USER_PACKAGE_WL', False) or "").split() + package_blacklist = system_package_blacklist + user_package_blacklist + + if pn in package_blacklist: + bb.debug(1, "%s: found in blacklist, disable icecc" % pn) + return "no" + + if pn in user_package_whitelist: + bb.debug(1, "%s: found in whitelist, enable icecc" % pn) + return "yes" + + if d.getVar('PARALLEL_MAKE', False) == "": + bb.debug(1, "%s: has empty PARALLEL_MAKE, disable icecc" % pn) + return "no" + + return "yes" + +def icecc_is_allarch(bb, d): + return d.getVar("PACKAGE_ARCH", True) == "all" or bb.data.inherits_class('allarch', d) + +def icecc_is_kernel(bb, d): + return \ + bb.data.inherits_class("kernel", d); + +def icecc_is_native(bb, d): + return \ + bb.data.inherits_class("cross", d) or \ + bb.data.inherits_class("native", d); + +# Don't pollute allarch signatures with TARGET_FPU +icecc_version[vardepsexclude] += "TARGET_FPU" +def icecc_version(bb, d): + if use_icecc(bb, d) == "no": + return "" + + parallel = d.getVar('ICECC_PARALLEL_MAKE', False) or "" + if not d.getVar('PARALLEL_MAKE', False) == "" and parallel: + d.setVar("PARALLEL_MAKE", parallel) + + if icecc_is_native(bb, d): + archive_name = "local-host-env" + elif d.expand('${HOST_PREFIX}') == "": + bb.fatal(d.expand("${PN}"), " NULL prefix") + else: + prefix = d.expand('${HOST_PREFIX}' ) + distro = d.expand('${DISTRO}') + target_sys = d.expand('${TARGET_SYS}') + float = d.getVar('TARGET_FPU', False) or "hard" + archive_name = prefix + distro + "-" + target_sys + "-" + float + if icecc_is_kernel(bb, d): + archive_name += "-kernel" + + import socket + ice_dir = d.expand('${STAGING_DIR_NATIVE}${prefix_native}') + tar_file = os.path.join(ice_dir, 'ice', archive_name + "-@VERSION@-" + socket.gethostname() + '.tar.gz') + + return tar_file + +def icecc_path(bb,d): + if use_icecc(bb, d) == "no": + # don't create unnecessary directories when icecc is disabled + return + + if icecc_is_kernel(bb, d): + return create_path( [get_cross_kernel_cc(bb,d), ], bb, d) + + else: + prefix = d.expand('${HOST_PREFIX}') + return create_path( [prefix+"gcc", prefix+"g++"], bb, d) + +def icecc_get_external_tool(bb, d, tool): + external_toolchain_bindir = d.expand('${EXTERNAL_TOOLCHAIN}${bindir_cross}') + target_prefix = d.expand('${TARGET_PREFIX}') + return os.path.join(external_toolchain_bindir, '%s%s' % (target_prefix, tool)) + +# Don't pollute native signatures with target TUNE_PKGARCH through STAGING_BINDIR_TOOLCHAIN +icecc_get_tool[vardepsexclude] += "STAGING_BINDIR_TOOLCHAIN" +def icecc_get_tool(bb, d, tool): + if icecc_is_native(bb, d): + return bb.utils.which(os.getenv("PATH"), tool) + elif icecc_is_kernel(bb, d): + return bb.utils.which(os.getenv("PATH"), get_cross_kernel_cc(bb, d)) + else: + ice_dir = d.expand('${STAGING_BINDIR_TOOLCHAIN}') + target_sys = d.expand('${TARGET_SYS}') + tool_bin = os.path.join(ice_dir, "%s-%s" % (target_sys, tool)) + if os.path.isfile(tool_bin): + return tool_bin + else: + external_tool_bin = icecc_get_external_tool(bb, d, tool) + if os.path.isfile(external_tool_bin): + return external_tool_bin + else: + return "" + +def icecc_get_and_check_tool(bb, d, tool): + # Check that g++ or gcc is not a symbolic link to icecc binary in + # PATH or icecc-create-env script will silently create an invalid + # compiler environment package. + t = icecc_get_tool(bb, d, tool) + if t and os.popen("readlink -f %s" % t).read()[:-1] == get_icecc(d): + bb.error("%s is a symlink to %s in PATH and this prevents icecc from working" % (t, get_icecc(d))) + return "" + else: + return t + +wait_for_file() { + local TIME_ELAPSED=0 + local FILE_TO_TEST=$1 + local TIMEOUT=$2 + until [ -f "$FILE_TO_TEST" ] + do + TIME_ELAPSED=`expr $TIME_ELAPSED + 1` + if [ $TIME_ELAPSED -gt $TIMEOUT ] + then + return 1 + fi + sleep 1 + done +} + +def set_icecc_env(): + # dummy python version of set_icecc_env + return + +set_icecc_env() { + if [ "${@use_icecc(bb, d)}" = "no" ] + then + return + fi + ICECC_VERSION="${@icecc_version(bb, d)}" + if [ "x${ICECC_VERSION}" = "x" ] + then + bbwarn "Cannot use icecc: could not get ICECC_VERSION" + return + fi + + ICE_PATH="${@icecc_path(bb, d)}" + if [ "x${ICE_PATH}" = "x" ] + then + bbwarn "Cannot use icecc: could not get ICE_PATH" + return + fi + + ICECC_CC="${@icecc_get_and_check_tool(bb, d, "gcc")}" + ICECC_CXX="${@icecc_get_and_check_tool(bb, d, "g++")}" + # cannot use icecc_get_and_check_tool here because it assumes as without target_sys prefix + ICECC_WHICH_AS="${@bb.utils.which(os.getenv('PATH'), 'as')}" + if [ ! -x "${ICECC_CC}" -o ! -x "${ICECC_CXX}" ] + then + bbwarn "Cannot use icecc: could not get ICECC_CC or ICECC_CXX" + return + fi + + ICE_VERSION=`$ICECC_CC -dumpversion` + ICECC_VERSION=`echo ${ICECC_VERSION} | sed -e "s/@VERSION@/$ICE_VERSION/g"` + if [ ! -x "${ICECC_ENV_EXEC}" ] + then + bbwarn "Cannot use icecc: invalid ICECC_ENV_EXEC" + return + fi + + ICECC_AS="`${ICECC_CC} -print-prog-name=as`" + # for target recipes should return something like: + # /OE/tmp-eglibc/sysroots/x86_64-linux/usr/libexec/arm920tt-oe-linux-gnueabi/gcc/arm-oe-linux-gnueabi/4.8.2/as + # and just "as" for native, if it returns "as" in current directory (for whatever reason) use "as" from PATH + if [ "`dirname "${ICECC_AS}"`" = "." ] + then + ICECC_AS="${ICECC_WHICH_AS}" + fi + + if [ ! -f "${ICECC_VERSION}.done" ] + then + mkdir -p "`dirname "${ICECC_VERSION}"`" + + # the ICECC_VERSION generation step must be locked by a mutex + # in order to prevent race conditions + if flock -n "${ICECC_VERSION}.lock" \ + ${ICECC_ENV_EXEC} "${ICECC_CC}" "${ICECC_CXX}" "${ICECC_AS}" "${ICECC_VERSION}" + then + touch "${ICECC_VERSION}.done" + elif [ ! wait_for_file "${ICECC_VERSION}.done" 30 ] + then + # locking failed so wait for ${ICECC_VERSION}.done to appear + bbwarn "Timeout waiting for ${ICECC_VERSION}.done" + return + fi + fi + + export ICECC_VERSION ICECC_CC ICECC_CXX + export PATH="$ICE_PATH:$PATH" + export CCACHE_PATH="$PATH" + + bbnote "Using icecc" +} + +do_configure_prepend() { + set_icecc_env +} + +do_compile_prepend() { + set_icecc_env +} + +do_compile_kernelmodules_prepend() { + set_icecc_env +} + +do_install_prepend() { + set_icecc_env +} |
