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# 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.bz2 of our toolchain and sets
# ICECC_VERSION accordingly.
#
# This class needs ICECC_PATH to be set already. It must have
# been exported from the shell running bitbake. Setting it in
# local.conf is not adequate.
#
# This class objdump, ldconfig, grep, sed installed on the build host.
def icc_determine_gcc_version(gcc):
"""
Hack to determine the version of GCC
'i686-apple-darwin8-gcc-4.0.1 (GCC) 4.0.1 (Apple Computer, Inc. build 5363)'
"""
import os
return os.popen("%s --version" % gcc ).readline().split()[2]
def create_env(bb,d):
"""
Create a tar.bz2 of the current toolchain
"""
# Constin native-native compilation no environment needed if
# host prefix is empty (let us duplicate the query for ease)
prefix = bb.data.expand('${HOST_PREFIX}', d)
if len(prefix) == 0:
return ""
import tarfile, socket, time, os
ice_dir = bb.data.expand('${CROSS_DIR}', d)
prefix = bb.data.expand('${HOST_PREFIX}' , d)
distro = bb.data.expand('${DISTRO}', d)
target_sys = bb.data.expand('${TARGET_SYS}', d)
target_prefix = bb.data.expand('${TARGET_PREFIX}', d)
float = bb.data.getVar('${TARGET_FPU}', d) or "hard"
name = socket.gethostname()
# Stupid check to determine if we have built a libc and a cross
# compiler.
try:
os.stat(os.path.join(ice_dir, target_sys, 'lib', 'ld-linux.so.2'))
os.stat(os.path.join(ice_dir, target_sys, 'bin', 'g++'))
except: # no cross compiler built yet
return ""
VERSION = icc_determine_gcc_version( os.path.join(ice_dir,target_sys,"bin","g++") )
cross_name = prefix + distro + target_sys + float +VERSION+ name
tar_file = os.path.join(ice_dir, 'ice', cross_name + '.tar.bz2')
try:
os.stat(tar_file)
# tar file already exists
return tar_file
except:
try:
os.makedirs(os.path.join(ice_dir,'ice'))
except:
# directory already exists, continue
pass
# FIXME find out the version of the compiler
# Consider using -print-prog-name={cc1,cc1plus}
# and -print-file-name=specs
# We will use the GCC to tell us which tools to use
# What we need is:
# -gcc
# -g++
# -as
# -cc1
# -cc1plus
# and we add them to /usr/bin
tar = tarfile.open(tar_file, 'w:bz2')
# Now add the required files
tar.add(os.path.join(ice_dir,target_sys,'bin','gcc'),
os.path.join("usr","bin","gcc") )
tar.add(os.path.join(ice_dir,target_sys,'bin','g++'),
os.path.join("usr","bin","g++") )
tar.add(os.path.join(ice_dir,target_sys,'bin','as'),
os.path.join("usr","bin","as") )
cc = bb.data.getVar('CC', d, True)
# use bitbake's PATH so that the cross-compiler is actually found on the PATH
oldpath = os.environ['PATH']
os.environ['PATH'] = bb.data.getVar('PATH', d, True)
# FIXME falsely assuming there is only a single NEEDED per file
# FIXME falsely assuming the lib path is /lib
# which libc does the compiler need? (for example: libc.so.6)
libc = os.popen("objdump -x `which %s` | sed -n 's/.*NEEDED *//p'" % cc).read()[:-1]
# what is the absolute path of libc? (for example: /lib/libc.so.6)
# FIXME assuming only one entry is returned, which easily breaks
libc = os.popen("ldconfig -p | grep -e %s$ | sed 's:[^/]*/:/:'" % libc).read()[:-1]
# which loader does the compiler need?
ldlinux = os.popen("objdump -x %s | sed -n 's/.*NEEDED *//p'" % libc).read()[:-1]
ldlinux = os.popen("ldconfig -p | grep -e %s$ | sed 's:[^/]*/:/:'" % ldlinux).read()[:-1]
tar.add(libc)
tar.add(ldlinux)
# Now let us find cc1 and cc1plus
cc1 = os.popen("%s -print-prog-name=cc1" % cc).read()[:-1]
cc1plus = os.popen("%s -print-prog-name=cc1plus" % cc).read()[:-1]
spec = os.popen("%s -print-file-name=specs" % cc).read()[:-1]
os.environ['PATH'] = oldpath
# CC1 and CC1PLUS should be there...
#tar.add(cc1, os.path.join('usr', 'bin', 'cc1'))
#tar.add(cc1plus, os.path.join('usr', 'bin', 'cc1plus'))
# I think they should remain absolute paths (as gcc expects them there)
tar.add(cc1)
tar.add(cc1plus)
# spec - if it exists
if os.path.exists(spec):
tar.add(spec)
tar.close()
return tar_file
def create_path(compilers, type, bb, d):
"""
Create Symlinks for the icecc in the staging directory
"""
import os
staging = os.path.join(bb.data.expand('${STAGING_DIR}', d), "ice", type)
icecc = bb.data.getVar('ICECC_PATH', d)
# Create the dir if necessary
try:
os.stat(staging)
except:
os.makedirs(staging)
for compiler in compilers:
gcc_path = os.path.join(staging, compiler)
try:
os.stat(gcc_path)
except:
os.symlink(icecc, gcc_path)
return staging + ":"
def use_icc_version(bb,d):
# Constin native native
prefix = bb.data.expand('${HOST_PREFIX}', d)
if len(prefix) == 0:
return "no"
blacklist = [ "cross", "native" ]
for black in blacklist:
if bb.data.inherits_class(black, d):
return "no"
return "yes"
def icc_path(bb,d,compile):
native = bb.data.expand('${PN}', d)
blacklist = [ "ulibc", "glibc", "ncurses" ]
for black in blacklist:
if black in native:
return ""
blacklist = [ "cross", "native" ]
for black in blacklist:
if bb.data.inherits_class(black, d):
compile = False
prefix = bb.data.expand('${HOST_PREFIX}', d)
if compile and len(prefix) != 0:
return create_path( [prefix+"gcc", prefix+"g++"], "cross", bb, d)
elif not compile or len(prefix) == 0:
return create_path( ["gcc", "g++"], "native", bb, d)
def icc_version(bb,d):
return create_env(bb,d)
#
# set the icecream environment variables
do_configure_prepend() {
export PATH=${@icc_path(bb,d,False)}$PATH
export ICECC_CC="gcc"
export ICECC_CXX="g++"
}
do_compile_prepend() {
export PATH=${@icc_path(bb,d,True)}$PATH
export ICECC_CC="${HOST_PREFIX}gcc"
export ICECC_CXX="${HOST_PREFIX}g++"
if [ "${@use_icc_version(bb,d)}" = "yes" ]; then
print ICECC_VERSION="${@icc_version(bb,d)}"
export ICECC_VERSION="${@icc_version(bb,d)}"
fi
}
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