# This file contains some usefull common functions # Copyright 2007 Yann E. MORIN # Licensed under the GPL v2. See COPYING in the root of this package # Prepare the fault handler CT_OnError() { ret=$? # Bail out early in subshell, the upper level shell will act accordingly. [ ${BASH_SUBSHELL} -eq 0 ] || exit $ret CT_DoLog ERROR "Build failed in step '${CT_STEP_MESSAGE[${CT_STEP_COUNT}]}'" for((step=(CT_STEP_COUNT-1); step>1; step--)); do CT_DoLog ERROR " called in step '${CT_STEP_MESSAGE[${step}]}'" done CT_DoLog ERROR "Error happened in '${BASH_SOURCE[1]}' in function '${FUNCNAME[1]}' (line unknown, sorry)" for((depth=2; ${BASH_LINENO[$((${depth}-1))]}>0; depth++)); do CT_DoLog ERROR " called from '${BASH_SOURCE[${depth}]}' at line # ${BASH_LINENO[${depth}-1]} in function '${FUNCNAME[${depth}]}'" done [ "${CT_LOG_TO_FILE}" = "y" ] && CT_DoLog ERROR "Look at '${CT_LOG_FILE}' for more info on this error." CT_STEP_COUNT=1 CT_DoEnd ERROR exit $ret } # Install the fault handler trap CT_OnError ERR # Inherit the fault handler in subshells and functions set -E # Make pipes fail on the _first_ failed command # Not supported on bash < 3.x, but we need it, so drop the obsoleting bash-2.x set -o pipefail # Don't hash commands' locations, and search every time it is requested. # This is slow, but needed because of the static/shared core gcc which shall # always match to shared if it exists, and only fallback to static if the # shared is not found set +o hashall # Log policy: # - first of all, save stdout so we can see the live logs: fd #6 exec 6>&1 # - then point stdout to the log file (temporary for now) tmp_log_file="${CT_TOP_DIR}/log.$$" exec >>"${tmp_log_file}" # The different log levels: CT_LOG_LEVEL_ERROR=0 CT_LOG_LEVEL_WARN=1 CT_LOG_LEVEL_INFO=2 CT_LOG_LEVEL_EXTRA=3 CT_LOG_LEVEL_DEBUG=4 CT_LOG_LEVEL_ALL=5 # Make it easy to use \n and ! CR=$(printf "\n") BANG='!' # A function to log what is happening # Different log level are available: # - ERROR: A serious, fatal error occurred # - WARN: A non fatal, non serious error occurred, take your responsbility with the generated build # - INFO: Informational messages # - EXTRA: Extra informational messages # - DEBUG: Debug messages # - ALL: Component's build messages # Usage: CT_DoLog [message] # If message is empty, then stdin will be logged. CT_DoLog() { local max_level LEVEL level cur_l cur_L local l eval max_level="\${CT_LOG_LEVEL_${CT_LOG_LEVEL_MAX}}" # Set the maximum log level to DEBUG if we have none [ -z "${max_level}" ] && max_level=${CT_LOG_LEVEL_DEBUG} LEVEL="$1"; shift eval level="\${CT_LOG_LEVEL_${LEVEL}}" if [ $# -eq 0 ]; then cat - else echo "${@}" fi |( IFS="${CR}" # We want the full lines, even leading spaces _prog_bar_cpt=0 _prog_bar[0]='/' _prog_bar[1]='-' _prog_bar[2]='\' _prog_bar[3]='|' indent=$((2*CT_STEP_COUNT)) while read line; do case "${CT_LOG_SEE_TOOLS_WARN},${line}" in y,*"warning:"*) cur_L=WARN; cur_l=${CT_LOG_LEVEL_WARN};; y,*"WARNING:"*) cur_L=WARN; cur_l=${CT_LOG_LEVEL_WARN};; *"error:"*) cur_L=ERROR; cur_l=${CT_LOG_LEVEL_ERROR};; *"make["*"]: *** ["*) cur_L=ERROR; cur_l=${CT_LOG_LEVEL_ERROR};; *) cur_L="${LEVEL}"; cur_l="${level}";; esac # There will always be a log file (stdout, fd #1), be it /dev/null printf "[%-5s]%*s%s%s\n" "${cur_L}" "${indent}" " " "${line}" if [ ${cur_l} -le ${max_level} ]; then # Only print to console (fd #6) if log level is high enough. printf "\r[%-5s]%*s%s%s\n" "${cur_L}" "${indent}" " " "${line}" >&6 fi if [ "${CT_LOG_PROGRESS_BAR}" = "y" ]; then printf "\r[%02d:%02d] %s " $((SECONDS/60)) $((SECONDS%60)) "${_prog_bar[$((_prog_bar_cpt/10))]}" >&6 _prog_bar_cpt=$(((_prog_bar_cpt+1)%40)) fi done ) return 0 } # Execute an action, and log its messages # Usage: CT_DoExecLog <[VAR=val...] command [parameters...]> CT_DoExecLog() { local level="$1" shift CT_DoLog DEBUG "==> Executing: '${@}'" "${@}" 2>&1 |CT_DoLog "${level}" } # Tail message to be logged whatever happens # Usage: CT_DoEnd CT_DoEnd() { local level="$1" CT_STOP_DATE=$(CT_DoDate +%s%N) CT_STOP_DATE_HUMAN=$(CT_DoDate +%Y%m%d.%H%M%S) if [ "${level}" != "ERROR" ]; then CT_DoLog "${level:-INFO}" "Build completed at ${CT_STOP_DATE_HUMAN}" fi elapsed=$((CT_STOP_DATE-CT_STAR_DATE)) elapsed_min=$((elapsed/(60*1000*1000*1000))) elapsed_sec=$(printf "%02d" $(((elapsed%(60*1000*1000*1000))/(1000*1000*1000)))) elapsed_csec=$(printf "%02d" $(((elapsed%(1000*1000*1000))/(10*1000*1000)))) CT_DoLog ${level:-INFO} "(elapsed: ${elapsed_min}:${elapsed_sec}.${elapsed_csec})" } # Abort the execution with an error message # Usage: CT_Abort CT_Abort() { CT_DoLog ERROR "$1" exit 1 } # Test a condition, and print a message if satisfied # Usage: CT_Test CT_Test() { local ret local m="$1" shift test "$@" && CT_DoLog WARN "$m" return 0 } # Test a condition, and abort with an error message if satisfied # Usage: CT_TestAndAbort CT_TestAndAbort() { local m="$1" shift test "$@" && CT_Abort "$m" return 0 } # Test a condition, and abort with an error message if not satisfied # Usage: CT_TestAndAbort CT_TestOrAbort() { local m="$1" shift test "$@" || CT_Abort "$m" return 0 } # Test the presence of a tool, or abort if not found # Usage: CT_HasOrAbort CT_HasOrAbort() { CT_TestAndAbort "'${1}' not found and needed for successful toolchain build." -z "$(CT_Which "${1}")" return 0 } # Search a program: wrap "which" for those system where # "which" verbosely says there is no match (Mdk are such # suckers...) # Usage: CT_Which CT_Which() { which "$1" 2>/dev/null || true } # Get current date with nanosecond precision # On those system not supporting nanosecond precision, faked with rounding down # to the highest entire second # Usage: CT_DoDate CT_DoDate() { date "$1" |sed -r -e 's/%N$/000000000/;' } CT_STEP_COUNT=1 CT_STEP_MESSAGE[${CT_STEP_COUNT}]="" # Memorise a step being done so that any error is caught # Usage: CT_DoStep CT_DoStep() { local start=$(CT_DoDate +%s%N) CT_DoLog "$1" "=================================================================" CT_DoLog "$1" "$2" CT_STEP_COUNT=$((CT_STEP_COUNT+1)) CT_STEP_LEVEL[${CT_STEP_COUNT}]="$1"; shift CT_STEP_START[${CT_STEP_COUNT}]="${start}" CT_STEP_MESSAGE[${CT_STEP_COUNT}]="$1" return 0 } # End the step just being done # Usage: CT_EndStep CT_EndStep() { local stop=$(CT_DoDate +%s%N) local duration=$(printf "%032d" $((stop-${CT_STEP_START[${CT_STEP_COUNT}]})) |sed -r -e 's/([[:digit:]]{2})[[:digit:]]{7}$/\.\1/; s/^0+//; s/^\./0\./;') local elapsed=$(printf "%02d:%02d" $((SECONDS/60)) $((SECONDS%60))) local level="${CT_STEP_LEVEL[${CT_STEP_COUNT}]}" local message="${CT_STEP_MESSAGE[${CT_STEP_COUNT}]}" CT_STEP_COUNT=$((CT_STEP_COUNT-1)) CT_DoLog "${level}" "${message}: done in ${duration}s (at ${elapsed})" return 0 } # Pushes into a directory, and pops back CT_Pushd() { pushd "$1" >/dev/null 2>&1 } CT_Popd() { popd >/dev/null 2>&1 } # Makes a path absolute # Usage: CT_MakeAbsolutePath path CT_MakeAbsolutePath() { # Try to cd in that directory if [ -d "$1" ]; then CT_Pushd "$1" pwd CT_Popd else # No such directory, fail back to guessing case "$1" in /*) echo "$1";; *) echo "$(pwd)/$1";; esac fi return 0 } # Creates a temporary directory # $1: variable to assign to # Usage: CT_MktempDir foo CT_MktempDir() { # Some mktemp do not allow more than 6 Xs eval "$1"=$(mktemp -q -d "${CT_BUILD_DIR}/.XXXXXX") CT_TestOrAbort "Could not make temporary directory" -n "${!1}" -a -d "${!1}" CT_DoLog DEBUG "Made temporary directory '${!1}'" return 0 } # Echoes the specified string on stdout until the pipe breaks. # Doesn't fail # $1: string to echo # Usage: CT_DoYes "" |make oldconfig CT_DoYes() { yes "$1" || true } # Get the file name extension of a component # Usage: CT_GetFileExtension [extension] # If found, echoes the extension to stdout # If not found, echoes nothing on stdout. CT_GetFileExtension() { local ext local file="$1" shift local first_ext="$1" CT_Pushd "${CT_TARBALLS_DIR}" # we need to also check for an empty extension for those very # peculiar components that don't have one (such as sstrip from # buildroot). for ext in ${first_ext} .tar.gz .tar.bz2 .tgz .tar ''; do if [ -f "${file}${ext}" ]; then echo "${ext}" break fi done CT_Popd return 0 } # Set environment for proxy access # Usage: CT_DoSetProxy # where proxy_type is one of 'http', 'sockssys', 'socks4' or 'socks5', # or empty (to not change proxy settings). CT_DoSetProxy() { case "${1}" in http) http_proxy="http://" case "${CT_PROXY_USER}:${CT_PROXY_PASS}" in :) ;; :*) http_proxy="${http_proxy}:${CT_PROXY_PASS}@";; *:) http_proxy="${http_proxy}${CT_PROXY_USER}@";; *:*) http_proxy="${http_proxy}${CT_PROXY_USER}:${CT_PROXY_PASS}@";; esac export http_proxy="${http_proxy}${CT_PROXY_HOST}:${CT_PROXY_PORT}/" export https_proxy="${http_proxy}" export ftp_proxy="${http_proxy}" CT_DoLog DEBUG "http_proxy='${http_proxy}'" ;; sockssys) CT_HasOrAbort tsocks . tsocks -on ;; socks*) # Remove any lingering config file from any previous run rm -f "${CT_BUILD_DIR}/tsocks.conf" # Find all interfaces and build locally accessible networks server_ip=$(ping -c 1 -W 2 "${CT_PROXY_HOST}" |head -n 1 |sed -r -e 's/^[^\(]+\(([^\)]+)\).*$/\1/;' || true) CT_TestOrAbort "SOCKS proxy '${CT_PROXY_HOST}' has no IP." -n "${server_ip}" /sbin/ifconfig |gawk -v server_ip="${server_ip}" ' BEGIN { split( server_ip, tmp, "\\." ); server_ip_num = tmp[1] * 2^24 + tmp[2] * 2^16 + tmp[3] * 2^8 + tmp[4] * 2^0; pairs = 0; } $0 ~ /^[[:space:]]*inet addr:/ { split( $2, tmp, ":|\\." ); if( ( tmp[2] == 127 ) && ( tmp[3] == 0 ) && ( tmp[4] == 0 ) && ( tmp[5] == 1 ) ) { /* Skip 127.0.0.1, it'\''s taken care of by tsocks itself */ next; } ip_num = tmp[2] * 2^24 + tmp[3] * 2^16 + tmp[4] * 2 ^8 + tmp[5] * 2^0; i = 32; do { i--; mask = 2^32 - 2^i; } while( (i!=0) && ( and( server_ip_num, mask ) == and( ip_num, mask ) ) ); mask = and( 0xFFFFFFFF, lshift( mask, 1 ) ); if( (i!=0) && (mask!=0) ) { masked_ip = and( ip_num, mask ); for( i=0; i"${CT_BUILD_DIR}/tsocks.conf" ( echo "server = ${server_ip}"; echo "server_port = ${CT_PROXY_PORT}"; [ -n "${CT_PROXY_USER}" ] && echo "default_user=${CT_PROXY_USER}"; [ -n "${CT_PROXY_PASS}" ] && echo "default_pass=${CT_PROXY_PASS}"; ) >>"${CT_BUILD_DIR}/tsocks.conf" case "${CT_PROXY_TYPE/socks}" in 4|5) proxy_type="${CT_PROXY_TYPE/socks}";; auto) reply=$(inspectsocks "${server_ip}" "${CT_PROXY_PORT}" 2>&1 || true) case "${reply}" in *"server is a version 4 socks server") proxy_type=4;; *"server is a version 5 socks server") proxy_type=5;; *) CT_Abort "Unable to determine SOCKS proxy type for '${CT_PROXY_HOST}:${CT_PROXY_PORT}'" esac ;; esac echo "server_type = ${proxy_type}" >> "${CT_BUILD_DIR}/tsocks.conf" CT_HasOrAbort tsocks # If tsocks was found, then validateconf is present (distributed with tsocks). CT_DoExecLog DEBUG validateconf -f "${CT_BUILD_DIR}/tsocks.conf" export TSOCKS_CONF_FILE="${CT_BUILD_DIR}/tsocks.conf" . tsocks -on ;; esac } # Download an URL using wget # Usage: CT_DoGetFileWget CT_DoGetFileWget() { # Need to return true because it is legitimate to not find the tarball at # some of the provided URLs (think about snapshots, different layouts for # different gcc versions, etc...) # Some (very old!) FTP server might not support the passive mode, thus # retry without # With automated download as we are doing, it can be very dangerous to use # -c to continue the downloads. It's far better to simply overwrite the # destination file # Some company networks have firewalls to connect to the internet, but it's # not easy to detect them, and wget does not timeout by default while # connecting, so force a global ${CT_CONNECT_TIMEOUT}-second timeout. wget -T ${CT_CONNECT_TIMEOUT} -nc --progress=dot:binary --tries=3 --passive-ftp "$1" \ || wget -T ${CT_CONNECT_TIMEOUT} -nc --progress=dot:binary --tries=3 "$1" \ || true } # Download an URL using curl # Usage: CT_DoGetFileCurl CT_DoGetFileCurl() { # Note: comments about wget method (above) are also valid here # Plus: no good progress indicator is available with curl, # so output is consigned to oblivion curl --ftp-pasv -O --retry 3 "$1" --connect-timeout ${CT_CONNECT_TIMEOUT} >/dev/null \ || curl -O --retry 3 "$1" --connect-timeout ${CT_CONNECT_TIMEOUT} >/dev/null \ || true } _wget=$(CT_Which wget) _curl=$(CT_Which curl) # Wrapper function to call one of curl or wget # Usage: CT_DoGetFile CT_DoGetFile() { case "${_wget},${_curl}" in ,) CT_DoError "Could find neither wget nor curl";; ,*) CT_DoExecLog ALL CT_DoGetFileCurl "$1" 2>&1;; *) CT_DoExecLog ALL CT_DoGetFileWget "$1" 2>&1;; esac } # Download the file from one of the URLs passed as argument # Usage: CT_GetFile [.extension] [url ...] CT_GetFile() { local ext local url local file="$1" local first_ext="" shift # If next argument starts with a dot, then this is not an URL, # and we can consider that it is a preferred extension. case "$1" in .*) first_ext="$1" shift ;; esac # Do we already have it? ext=$(CT_GetFileExtension "${file}" ${first_ext}) if [ -n "${ext}" ]; then CT_DoLog DEBUG "Already have '${file}'" return 0 fi # Try to retrieve the file CT_DoLog EXTRA "Retrieving '${file}'" CT_Pushd "${CT_TARBALLS_DIR}" if [ -n "${CT_LOCAL_TARBALLS_DIR}" ]; then CT_DoLog DEBUG "Trying to retrieve an already downloaded copy of '${file}'" # We'd rather have a bzip2'ed tarball, then gzipped tarball, plain tarball, # or, as a failover, a file without extension. # Try local copy first, if it exists for ext in ${first_ext} .tar.bz2 .tar.gz .tgz .tar ''; do CT_DoLog DEBUG "Trying '${CT_LOCAL_TARBALLS_DIR}/${file}${ext}'" if [ -r "${CT_LOCAL_TARBALLS_DIR}/${file}${ext}" -a \ "${CT_FORCE_DOWNLOAD}" != "y" ]; then CT_DoLog DEBUG "Got '${file}' from local storage" CT_DoExecLog ALL ln -s "${CT_LOCAL_TARBALLS_DIR}/${file}${ext}" "${file}${ext}" return 0 fi done fi # Not found locally, try from the network # Add URLs on the LAN mirror LAN_URLS= if [ "${CT_USE_MIRROR}" = "y" ]; then CT_DoLog DEBUG "Trying to retrieve a copy of '${file}' from LAN mirror '${CT_MIRROR_HOSTNAME}'" CT_TestOrAbort "Please set the LAN mirror hostname" -n "${CT_MIRROR_HOSTNAME}" CT_TestOrAbort "Please tell me where to find tarballs on the LAN mirror '${CT_MIRROR_HOSTNAME}'" -n "${CT_MIRROR_BASE}" LAN_URLS="${LAN_URLS} ${CT_MIRROR_SCHEME}://${CT_MIRROR_HOSTNAME}/${CT_MIRROR_BASE}/${file%-*}" LAN_URLS="${LAN_URLS} ${CT_MIRROR_SCHEME}://${CT_MIRROR_HOSTNAME}/${CT_MIRROR_BASE}" fi if [ "${CT_PREFER_MIRROR}" = "y" ]; then URLS="${LAN_URLS} ${@}" else URLS="${@} ${LAN_URLS}" fi # Scan all URLs in turn, and try to grab a tarball from there CT_DoSetProxy ${CT_PROXY_TYPE} for ext in ${first_ext} .tar.bz2 .tar.gz .tgz .tar ''; do # Try all urls in turn for url in ${URLS}; do CT_DoLog DEBUG "Trying '${url}/${file}${ext}'" CT_DoGetFile "${url}/${file}${ext}" if [ -f "${file}${ext}" ]; then CT_DoLog DEBUG "Got '${file}' from the Internet" if [ "${CT_SAVE_TARBALLS}" = "y" ]; then # The file may already exist if downloads are forced: remove it first CT_DoLog EXTRA "Saving '${file}' to local storage" CT_DoExecLog ALL rm -f "${CT_LOCAL_TARBALLS_DIR}/${file}${ext}" CT_DoExecLog ALL mv -f "${file}${ext}" "${CT_LOCAL_TARBALLS_DIR}" CT_DoExecLog ALL ln -s "${CT_LOCAL_TARBALLS_DIR}/${file}${ext}" "${file}${ext}" fi return 0 fi done done CT_Popd CT_Abort "Could not retrieve '${file}'." } # Extract a tarball and patch the resulting sources if necessary. # Some tarballs need to be extracted in specific places. Eg.: glibc addons # must be extracted in the glibc directory; uCLibc locales must be extracted # in the extra/locale sub-directory of uClibc. CT_ExtractAndPatch() { local file="$1" local base_file=$(echo "${file}" |cut -d - -f 1) local ver_file=$(echo "${file}" |cut -d - -f 2-) local official_patch_dir local custom_patch_dir local libc_addon local ext=$(CT_GetFileExtension "${file}") CT_TestAndAbort "'${file}' not found in '${CT_TARBALLS_DIR}'" -z "${ext}" local full_file="${CT_TARBALLS_DIR}/${file}${ext}" CT_Pushd "${CT_SRC_DIR}" # Add-ons need a little love, really. case "${file}" in glibc-[a-z]*-*|eglibc-[a-z]*-*) CT_TestAndAbort "Trying to extract the C-library addon/locales '${file}' when C-library not yet extracted" ! -d "${CT_LIBC_FILE}" cd "${CT_LIBC_FILE}" libc_addon=y [ -f ".${file}.extracted" ] && return 0 touch ".${file}.extracted" ;; uClibc-locale-*) CT_TestAndAbort "Trying to extract the C-library addon/locales '${file}' when C-library not yet extracted" ! -d "${CT_LIBC_FILE}" cd "${CT_LIBC_FILE}/extra/locale" libc_addon=y [ -f ".${file}.extracted" ] && return 0 touch ".${file}.extracted" ;; esac # If the directory exists, then consider extraction and patching done if [ -d "${file}" ]; then CT_DoLog DEBUG "Already extracted '${file}'" return 0 fi CT_DoLog EXTRA "Extracting and patching '${file}'" case "${ext}" in .tar.bz2) CT_DoExecLog ALL tar xvjf "${full_file}";; .tar.gz|.tgz) CT_DoExecLog ALL tar xvzf "${full_file}";; .tar) CT_DoExecLog ALL tar xvf "${full_file}";; *) CT_Abort "Don't know how to handle '${file}': unknown extension" ;; esac # Snapshots might not have the version number in the extracted directory # name. This is also the case for some (odd) packages, such as D.U.M.A. # Overcome this issue by symlink'ing the directory. if [ ! -d "${file}" -a "${libc_addon}" != "y" ]; then case "${ext}" in .tar.bz2) base=$(tar tjf "${full_file}" |head -n 1 |cut -d / -f 1 || true);; .tar.gz|.tgz) base=$(tar tzf "${full_file}" |head -n 1 |cut -d / -f 1 || true);; .tar) base=$(tar tf "${full_file}" |head -n 1 |cut -d / -f 1 || true);; esac CT_TestOrAbort "There was a problem when extracting '${file}'" -d "${base}" -o "${base}" != "${file}" ln -s "${base}" "${file}" fi # Kludge: outside this function, we wouldn't know if we had just extracted # a libc addon, or a plain package. Apply patches now. if [ "${libc_addon}" = "y" ]; then # Some addon tarballs directly contain the correct addon directory, # while others have the addon directory named after the tarball. # Fix that by always using the short name (eg: linuxthreads, ports, etc...) addon_short_name=$(echo "${file}" |sed -r -e 's/^[^-]+-([^-]+)-.*$/\1/;') if [ ! -d "${addon_short_name}" ]; then mv "${file}" "${addon_short_name}" # Keep a symlink to avoid re-extracting later on. ln -s "${addon_short_name}" "${file}" fi # If libc addon, we're already in the correct place else cd "${file}" fi official_patch_dir= custom_patch_dir= [ "${CT_CUSTOM_PATCH_ONLY}" = "y" ] || official_patch_dir="${CT_LIB_DIR}/patches/${base_file}/${ver_file}" [ "${CT_CUSTOM_PATCH}" = "y" ] && custom_patch_dir="${CT_CUSTOM_PATCH_DIR}/${base_file}/${ver_file}" for patch_dir in "${official_patch_dir}" "${custom_patch_dir}"; do if [ -n "${patch_dir}" -a -d "${patch_dir}" ]; then for p in "${patch_dir}"/*.patch; do if [ -f "${p}" ]; then CT_DoLog DEBUG "Applying patch '${p}'" CT_DoExecLog ALL patch -g0 -F1 -p1 -f <"${p}" CT_TestAndAbort "Failed while applying patch file '${p}'" ${PIPESTATUS[0]} -ne 0 fi done fi done if [ "${CT_OVERIDE_CONFIG_GUESS_SUB}" = "y" ]; then CT_DoLog ALL "Overiding config.guess and config.sub" for cfg in config_guess config_sub; do eval ${cfg}="${CT_LIB_DIR}/scripts/${cfg/_/.}" [ -e "${CT_TOP_DIR}/scripts/${cfg/_/.}" ] && eval ${cfg}="${CT_TOP_DIR}/scripts/${cfg/_/.}" # Can't use CT_DoExecLog because of the '{} \;' to be passed un-mangled to find find . -type f -name "${cfg/_/.}" -exec cp -v "${!cfg}" {} \; |CT_DoLog ALL done fi CT_Popd } # Two wrappers to call config.(guess|sub) either from CT_TOP_DIR or CT_LIB_DIR. # Those from CT_TOP_DIR, if they exist, will be be more recent than those from CT_LIB_DIR. CT_DoConfigGuess() { if [ -x "${CT_TOP_DIR}/scripts/config.guess" ]; then "${CT_TOP_DIR}/scripts/config.guess" else "${CT_LIB_DIR}/scripts/config.guess" fi } CT_DoConfigSub() { if [ -x "${CT_TOP_DIR}/scripts/config.sub" ]; then "${CT_TOP_DIR}/scripts/config.sub" "$@" else "${CT_LIB_DIR}/scripts/config.sub" "$@" fi } # Compute the target tuple from what is provided by the user # Usage: CT_DoBuildTargetTuple # In fact this function takes the environment variables to build the target # tuple. It is needed both by the normal build sequence, as well as the # sample saving sequence. CT_DoBuildTargetTuple() { # Set the endianness suffix, and the default endianness gcc option case "${CT_ARCH_BE},${CT_ARCH_LE}" in y,) target_endian_eb=eb target_endian_el= CT_ARCH_ENDIAN_CFLAG="-mbig-endian" CT_ARCH_ENDIAN_LDFLAG="-EB" ;; ,y) target_endian_eb= target_endian_el=el CT_ARCH_ENDIAN_CFLAG="-mlittle-endian" CT_ARCH_ENDIAN_LDFLAG="-EL" ;; esac # Build the default architecture tuple part CT_TARGET_ARCH="${CT_ARCH}" # Set defaults for the system part of the tuple. Can be overriden # by architecture-specific values. case "${CT_LIBC}" in none) CT_TARGET_SYS=elf;; *glibc) CT_TARGET_SYS=gnu;; uClibc) CT_TARGET_SYS=uclibc;; esac # Transform the ARCH into a kernel-understandable ARCH CT_KERNEL_ARCH="${CT_ARCH}" # Set the default values for ARCH, ABI, CPU, TUNE, FPU and FLOAT unset CT_ARCH_ARCH_CFLAG CT_ARCH_ABI_CFLAG CT_ARCH_CPU_CFLAG CT_ARCH_TUNE_CFLAG CT_ARCH_FPU_CFLAG CT_ARCH_FLOAT_CFLAG unset CT_ARCH_WITH_ARCH CT_ARCH_WITH_ABI CT_ARCH_WITH_CPU CT_ARCH_WITH_TUNE CT_ARCH_WITH_FPU CT_ARCH_WITH_FLOAT [ "${CT_ARCH_ARCH}" ] && { CT_ARCH_ARCH_CFLAG="-march=${CT_ARCH_ARCH}"; CT_ARCH_WITH_ARCH="--with-arch=${CT_ARCH_ARCH}"; } [ "${CT_ARCH_ABI}" ] && { CT_ARCH_ABI_CFLAG="-mabi=${CT_ARCH_ABI}"; CT_ARCH_WITH_ABI="--with-abi=${CT_ARCH_ABI}"; } [ "${CT_ARCH_CPU}" ] && { CT_ARCH_CPU_CFLAG="-mcpu=${CT_ARCH_CPU}"; CT_ARCH_WITH_CPU="--with-cpu=${CT_ARCH_CPU}"; } [ "${CT_ARCH_TUNE}" ] && { CT_ARCH_TUNE_CFLAG="-mtune=${CT_ARCH_TUNE}"; CT_ARCH_WITH_TUNE="--with-tune=${CT_ARCH_TUNE}"; } [ "${CT_ARCH_FPU}" ] && { CT_ARCH_FPU_CFLAG="-mfpu=${CT_ARCH_FPU}"; CT_ARCH_WITH_FPU="--with-fpu=${CT_ARCH_FPU}"; } [ "${CT_ARCH_FLOAT_SW}" ] && { CT_ARCH_FLOAT_CFLAG="-msoft-float"; CT_ARCH_WITH_FLOAT="--with-float=soft"; } # Build the default kernel tuple part CT_TARGET_KERNEL="${CT_KERNEL}" # Overide the default values with the components specific settings CT_DoArchTupleValues CT_DoKernelTupleValues # Finish the target tuple construction CT_TARGET="${CT_TARGET_ARCH}-${CT_TARGET_VENDOR:-unknown}-${CT_TARGET_KERNEL}${CT_TARGET_KERNEL:+-}${CT_TARGET_SYS}" # Sanity checks __sed_alias="" if [ -n "${CT_TARGET_ALIAS_SED_EXPR}" ]; then __sed_alias=$(echo "${CT_TARGET}" |sed -r -e "${CT_TARGET_ALIAS_SED_EXPR}") fi case ":${CT_TARGET_VENDOR}:${CT_TARGET_ALIAS}:${__sed_alias}:" in :*" "*:*:*:) CT_Abort "Don't use spaces in the vendor string, it breaks things.";; :*"-"*:*:*:) CT_Abort "Don't use dashes in the vendor string, it breaks things.";; :*:*" "*:*:) CT_Abort "Don't use spaces in the target alias, it breaks things.";; :*:*:*" "*:) CT_Abort "Don't use spaces in the target sed transform, it breaks things.";; esac # Canonicalise it CT_TARGET=$(CT_DoConfigSub "${CT_TARGET}") # Prepare the target CFLAGS CT_ARCH_TARGET_CFLAGS="${CT_ARCH_TARGET_CFLAGS} ${CT_ARCH_ENDIAN_CFLAG}" CT_ARCH_TARGET_CFLAGS="${CT_ARCH_TARGET_CFLAGS} ${CT_ARCH_ARCH_CFLAG}" CT_ARCH_TARGET_CFLAGS="${CT_ARCH_TARGET_CFLAGS} ${CT_ARCH_ABI_CFLAG}" CT_ARCH_TARGET_CFLAGS="${CT_ARCH_TARGET_CFLAGS} ${CT_ARCH_CPU_CFLAG}" CT_ARCH_TARGET_CFLAGS="${CT_ARCH_TARGET_CFLAGS} ${CT_ARCH_TUNE_CFLAG}" CT_ARCH_TARGET_CFLAGS="${CT_ARCH_TARGET_CFLAGS} ${CT_ARCH_FPU_CFLAG}" CT_ARCH_TARGET_CFLAGS="${CT_ARCH_TARGET_CFLAGS} ${CT_ARCH_FLOAT_CFLAG}" # Now on for the target LDFLAGS CT_ARCH_TARGET_LDFLAGS="${CT_ARCH_TARGET_LDFLAGS} ${CT_ARCH_ENDIAN_LDFLAG}" } # This function does pause the build until the user strikes "Return" # Usage: CT_DoPause [optional_message] CT_DoPause() { local foo local message="${1:-Pausing for your pleasure}" CT_DoLog INFO "${message}" read -p "Press 'Enter' to continue, or Ctrl-C to stop..." foo >&6 return 0 } # This function saves the state of the toolchain to be able to restart # at any one point # Usage: CT_DoSaveState CT_DoSaveState() { [ "${CT_DEBUG_CT_SAVE_STEPS}" = "y" ] || return 0 local state_name="$1" local state_dir="${CT_STATE_DIR}/${state_name}" CT_DoLog DEBUG "Saving state to restart at step '${state_name}'..." rm -rf "${state_dir}" mkdir -p "${state_dir}" case "${CT_DEBUG_CT_SAVE_STEPS_GZIP}" in y) tar_opt=z; tar_ext=.gz;; *) tar_opt=; tar_ext=;; esac CT_DoLog DEBUG " Saving environment and aliases" # We must omit shell functions, and some specific bash variables # that break when restoring the environment, later. We could do # all the processing in the gawk script, but a sed is easier... set |gawk ' BEGIN { _p = 1; } $0~/^[^ ]+ \(\)/ { _p = 0; } _p == 1 $0 == "}" { _p = 1; } ' |sed -r -e '/^BASH_(ARGC|ARGV|LINENO|SOURCE|VERSINFO)=/d; /^(UID|EUID)=/d; /^(FUNCNAME|GROUPS|PPID|SHELLOPTS)=/d;' >"${state_dir}/env.sh" CT_DoLog DEBUG " Saving CT_CC_CORE_STATIC_PREFIX_DIR='${CT_CC_CORE_STATIC_PREFIX_DIR}'" CT_Pushd "${CT_CC_CORE_STATIC_PREFIX_DIR}" CT_DoExecLog DEBUG tar cv${tar_opt}f "${state_dir}/cc_core_static_prefix_dir.tar${tar_ext}" . CT_Popd CT_DoLog DEBUG " Saving CT_CC_CORE_SHARED_PREFIX_DIR='${CT_CC_CORE_SHARED_PREFIX_DIR}'" CT_Pushd "${CT_CC_CORE_SHARED_PREFIX_DIR}" CT_DoExecLog DEBUG tar cv${tar_opt}f "${state_dir}/cc_core_shared_prefix_dir.tar${tar_ext}" . CT_Popd CT_DoLog DEBUG " Saving CT_PREFIX_DIR='${CT_PREFIX_DIR}'" CT_Pushd "${CT_PREFIX_DIR}" CT_DoExecLog DEBUG tar cv${tar_opt}f "${state_dir}/prefix_dir.tar${tar_ext}" --exclude '*.log' . CT_Popd if [ "${CT_LOG_TO_FILE}" = "y" ]; then CT_DoLog DEBUG " Saving log file" exec >/dev/null case "${CT_DEBUG_CT_SAVE_STEPS_GZIP}" in y) gzip -3 -c "${CT_LOG_FILE}" >"${state_dir}/log.gz";; *) cat "${CT_LOG_FILE}" >"${state_dir}/log";; esac exec >>"${CT_LOG_FILE}" fi } # This function restores a previously saved state # Usage: CT_DoLoadState CT_DoLoadState(){ local state_name="$1" local state_dir="${CT_STATE_DIR}/${state_name}" local old_RESTART="${CT_RESTART}" local old_STOP="${CT_STOP}" CT_TestOrAbort "The previous build did not reach the point where it could be restarted at '${CT_RESTART}'" -d "${state_dir}" # We need to do something special with the log file! if [ "${CT_LOG_TO_FILE}" = "y" ]; then exec >"${state_dir}/tail.log" fi CT_DoLog INFO "Restoring state at step '${state_name}', as requested." case "${CT_DEBUG_CT_SAVE_STEPS_GZIP}" in y) tar_opt=z; tar_ext=.gz;; *) tar_opt=; tar_ext=;; esac CT_DoLog DEBUG " Removing previous build directories" chmod -R u+rwX "${CT_PREFIX_DIR}" "${CT_CC_CORE_SHARED_PREFIX_DIR}" "${CT_CC_CORE_STATIC_PREFIX_DIR}" rm -rf "${CT_PREFIX_DIR}" "${CT_CC_CORE_SHARED_PREFIX_DIR}" "${CT_CC_CORE_STATIC_PREFIX_DIR}" mkdir -p "${CT_PREFIX_DIR}" "${CT_CC_CORE_SHARED_PREFIX_DIR}" "${CT_CC_CORE_STATIC_PREFIX_DIR}" CT_DoLog DEBUG " Restoring CT_PREFIX_DIR='${CT_PREFIX_DIR}'" CT_Pushd "${CT_PREFIX_DIR}" CT_DoExecLog DEBUG tar xv${tar_opt}f "${state_dir}/prefix_dir.tar${tar_ext}" CT_Popd CT_DoLog DEBUG " Restoring CT_CC_CORE_SHARED_PREFIX_DIR='${CT_CC_CORE_SHARED_PREFIX_DIR}'" CT_Pushd "${CT_CC_CORE_SHARED_PREFIX_DIR}" CT_DoExecLog DEBUG tar xv${tar_opt}f "${state_dir}/cc_core_shared_prefix_dir.tar${tar_ext}" CT_Popd CT_DoLog DEBUG " Restoring CT_CC_CORE_STATIC_PREFIX_DIR='${CT_CC_CORE_STATIC_PREFIX_DIR}'" CT_Pushd "${CT_CC_CORE_STATIC_PREFIX_DIR}" CT_DoExecLog DEBUG tar xv${tar_opt}f "${state_dir}/cc_core_static_prefix_dir.tar${tar_ext}" CT_Popd # Restore the environment, discarding any error message # (for example, read-only bash internals) CT_DoLog DEBUG " Restoring environment" . "${state_dir}/env.sh" >/dev/null 2>&1 || true # Restore the new RESTART and STOP steps CT_RESTART="${old_RESTART}" CT_STOP="${old_STOP}" unset old_stop old_restart if [ "${CT_LOG_TO_FILE}" = "y" ]; then CT_DoLog DEBUG " Restoring log file" exec >/dev/null case "${CT_DEBUG_CT_SAVE_STEPS_GZIP}" in y) zcat "${state_dir}/log.gz" >"${CT_LOG_FILE}";; *) cat "${state_dir}/log" >"${CT_LOG_FILE}";; esac cat "${state_dir}/tail.log" >>"${CT_LOG_FILE}" exec >>"${CT_LOG_FILE}" rm -f "${state_dir}/tail.log" fi }