# 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 [ $# -eq 0 ]; then cat - else printf "${@}\n" 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: [VAR=val...] CT_DoExecLog 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 (Mandriva is # such a sucker...) # 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 } # 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 "${CT_BUILD_DIR}/tmp.XXXXXX") CT_TestOrAbort "Could not make temporary directory" -n "${!1}" -a -d "${!1}" CT_DoLog DEBUG "Made temporary directory '${!1}'" return 0 } # Removes one or more directories, even if it is read-only, or its parent is # Usage: CT_DoForceRmdir dir [...] CT_DoForceRmdir() { local dir local mode for dir in "${@}"; do [ -d "${dir}" ] || continue mode="$(stat -c '%a' "$(dirname "${dir}")")" CT_DoExecLog ALL chmod u+w "$(dirname "${dir}")" CT_DoExecLog ALL chmod -R u+w "${dir}" CT_DoExecLog ALL rm -rf "${dir}" CT_DoExecLog ALL chmod ${mode} "$(dirname "${dir}")" done } # 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 } # Add the specified directory to LD_LIBRARY_PATH, and export it # If the specified patch is already present, just export # $1: path to add # $2: add as 'first' or 'last' path, 'first' is assumed if $2 is empty # Usage CT_SetLibPath /some/where/lib [first|last] CT_SetLibPath() { local path="$1" local pos="$2" case ":${LD_LIBRARY_PATH}:" in *:"${path}":*) ;; *) case "${pos}" in last) CT_DoLog DEBUG "Adding '${path}' at end of LD_LIBRARY_PATH" LD_LIBRARY_PATH="${LD_LIBRARY_PATH:+${LD_LIBRARY_PATH}:}${path}" ;; first|"") CT_DoLog DEBUG "Adding '${path}' at start of LD_LIBRARY_PATH" LD_LIBRARY_PATH="${path}${LD_LIBRARY_PATH:+:${LD_LIBRARY_PATH}}" ;; *) CT_Abort "Incorrect position '${pos}' to add '${path}' to LD_LIBRARY_PATH" ;; esac ;; esac CT_DoLog DEBUG "==> LD_LIBRARY_PATH='${LD_LIBRARY_PATH}'" export LD_LIBRARY_PATH } # 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" # 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 ${first_ext} .tar.gz .tar.bz2 .tgz .tar ''; do if [ -f "${CT_TARBALLS_DIR}/${file}${ext}" ]; then echo "${ext}" break fi done return 0 } # 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. CT_DoExecLog ALL wget -T ${CT_CONNECT_TIMEOUT} -nc --progress=dot:binary --tries=3 --passive-ftp "$1" \ || CT_DoExecLog ALL 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, be silent. CT_DoExecLog ALL curl -s --ftp-pasv -O --retry 3 "$1" --connect-timeout ${CT_CONNECT_TIMEOUT} \ || CT_DoExecLog ALL curl -s -O --retry 3 "$1" --connect-timeout ${CT_CONNECT_TIMEOUT} \ || true } _wget=$(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_Abort "Could find neither wget nor curl";; ,*) CT_DoGetFileCurl "$1";; *) CT_DoGetFileWget "$1";; esac } # This function tries to retrieve a tarball form a local directory # Usage: CT_GetLocal [.extension] CT_GetLocal() { local basename="$1" local first_ext="$2" local ext # Do we already have it in *our* tarballs dir? ext=$(CT_GetFileExtension "${basename}" ${first_ext}) if [ -n "${ext}" ]; then CT_DoLog DEBUG "Already have '${basename}'" return 0 fi if [ -n "${CT_LOCAL_TARBALLS_DIR}" ]; then CT_DoLog DEBUG "Trying to retrieve an already downloaded copy of '${basename}'" # We'd rather have a bzip2'ed tarball, then gzipped tarball, plain tarball, # or, as a failover, a file without extension. for ext in ${first_ext} .tar.bz2 .tar.gz .tgz .tar ''; do CT_DoLog DEBUG "Trying '${CT_LOCAL_TARBALLS_DIR}/${basename}${ext}'" if [ -r "${CT_LOCAL_TARBALLS_DIR}/${basename}${ext}" -a \ "${CT_FORCE_DOWNLOAD}" != "y" ]; then CT_DoLog DEBUG "Got '${basename}' from local storage" CT_DoExecLog ALL ln -s "${CT_LOCAL_TARBALLS_DIR}/${basename}${ext}" "${CT_TARBALLS_DIR}/${basename}${ext}" return 0 fi done fi return 1 } # This function saves the specified to local storage if possible, # and if so, symlinks it for later usage # Usage: CT_SaveLocal CT_SaveLocal() { local file="$1" local basename="${file##*/}" if [ "${CT_SAVE_TARBALLS}" = "y" ]; then CT_DoLog EXTRA "Saving '${basename}' to local storage" # The file may already exist if downloads are forced: remove it first CT_DoExecLog ALL rm -f "${CT_LOCAL_TARBALLS_DIR}/${basename}" CT_DoExecLog ALL mv -f "${file}" "${CT_LOCAL_TARBALLS_DIR}" CT_DoExecLog ALL ln -s "${CT_LOCAL_TARBALLS_DIR}/${basename}" "${file}" fi } # Download the file from one of the URLs passed as argument # Usage: CT_GetFile [.extension] [url ...] CT_GetFile() { local ext local url URLS LAN_URLS 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="$1" shift ;; esac # Does it exist localy? CT_GetLocal "${file}" ${first_ext} && return 0 || true # No, it does not... # Are downloads allowed ? CT_TestAndAbort "File '${file}' not present locally, and downloads are not allowed" "${CT_FORBID_DOWNLOAD}" = "y" # Try to retrieve the file CT_DoLog EXTRA "Retrieving '${file}'" CT_Pushd "${CT_TARBALLS_DIR}" URLS="$@" # Add URLs on the LAN mirror LAN_URLS= if [ "${CT_USE_MIRROR}" = "y" ]; then CT_TestOrAbort "Please set the mirror base URL" -n "${CT_MIRROR_BASE_URL}" LAN_URLS="${LAN_URLS} ${CT_MIRROR_BASE_URL}/${file%-*}" LAN_URLS="${LAN_URLS} ${CT_MIRROR_BASE_URL}" if [ "${CT_PREFER_MIRROR}" = "y" ]; then CT_DoLog DEBUG "Pre-pending LAN mirror URLs" URLS="${LAN_URLS} ${URLS}" else CT_DoLog DEBUG "Appending LAN mirror URLs" URLS="${URLS} ${LAN_URLS}" fi fi # Scan all URLs in turn, and try to grab a tarball from there 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" CT_SaveLocal "${CT_TARBALLS_DIR}/${file}${ext}" return 0 fi done done CT_Popd CT_Abort "Could not retrieve '${file}'." } # Checkout from CVS, and build the associated tarball # The tarball will be called ${basename}.tar.bz2 # Prerequisite: either the server does not require password, # or the user must already be logged in. # 'tag' is the tag to retrieve. Must be specified, but can be empty. # If dirname is specified, then module will be renamed to dirname # prior to building the tarball. # Usage: CT_GetCVS [dirname] CT_GetCVS() { local basename="$1" local uri="$2" local module="$3" local tag="${4:+-r ${4}}" local dirname="$5" local tmp_dir # Does it exist localy? CT_GetLocal "${basename}" && return 0 || true # No, it does not... # Are downloads allowed ? CT_TestAndAbort "File '${basename}' not present locally, and downloads are not allowed" "${CT_FORBID_DOWNLOAD}" = "y" CT_DoLog EXTRA "Retrieving '${basename}'" CT_MktempDir tmp_dir CT_Pushd "${tmp_dir}" CT_DoExecLog ALL cvs -z 9 -d "${uri}" co -P ${tag} "${module}" [ -n "${dirname}" ] && CT_DoExecLog ALL mv "${module}" "${dirname}" CT_DoExecLog ALL tar cjf "${CT_TARBALLS_DIR}/${basename}.tar.bz2" "${dirname:-${module}}" CT_SaveLocal "${CT_TARBALLS_DIR}/${basename}.tar.bz2" CT_Popd CT_DoExecLog ALL rm -rf "${tmp_dir}" } # Check out from SVN, and build the associated tarball # The tarball will be called ${basename}.tar.bz2 # Prerequisite: either the server does not require password, # or the user must already be logged in. # 'rev' is the revision to retrieve # Usage: CT_GetSVN [rev] CT_GetSVN() { local basename="$1" local uri="$2" local rev="$3" # Does it exist localy? CT_GetLocal "${basename}" && return 0 || true # No, it does not... # Are downloads allowed ? CT_TestAndAbort "File '${basename}' not present locally, and downloads are not allowed" "${CT_FORBID_DOWNLOAD}" = "y" CT_DoLog EXTRA "Retrieving '${basename}'" CT_MktempDir tmp_dir CT_Pushd "${tmp_dir}" CT_DoExecLog ALL svn export ${rev:+-r ${rev}} "${uri}" "${basename}" CT_DoExecLog ALL tar cjf "${CT_TARBALLS_DIR}/${basename}.tar.bz2" "${basename}" CT_SaveLocal "${CT_TARBALLS_DIR}/${basename}.tar.bz2" CT_Popd CT_DoExecLog ALL rm -rf "${tmp_dir}" } # Extract a tarball # 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. This is taken into account # by the caller, that did a 'cd' into the correct path before calling us # and sets nochdir to 'nochdir'. # Usage: CT_Extract [nochdir] CT_Extract() { local basename="$1" local nochdir="$2" local ext=$(CT_GetFileExtension "${basename}") CT_TestAndAbort "'${basename}' not found in '${CT_TARBALLS_DIR}'" -z "${ext}" local full_file="${CT_TARBALLS_DIR}/${basename}${ext}" # Check if already extracted if [ -e "${CT_SRC_DIR}/.${basename}.extracted" ]; then CT_DoLog DEBUG "Already extracted '${basename}'" return 0 fi [ "${nochdir}" = "nochdir" ] || CT_Pushd "${CT_SRC_DIR}" CT_DoLog EXTRA "Extracting '${basename}'" case "${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 "${full_file}";; *) CT_Abort "Don't know how to handle '${basename}${ext}': unknown extension" ;; esac # Some tarballs have read-only files... :-( # Because of nochdir, we don't know where we are, so chmod all # the src tree CT_DoExecLog DEBUG chmod -R u+w "${CT_SRC_DIR}" CT_DoExecLog DEBUG touch "${CT_SRC_DIR}/.${basename}.extracted" [ "${nochdir}" = "nochdir" ] || CT_Popd } # Patches the specified component # Usage: CT_Patch [nochdir] CT_Patch() { local basename="$1" local nochdir="$2" local base_file="${basename%%-*}" local ver_file="${basename#*-}" local d local -a patch_dirs local bundled_patch_dir local local_patch_dir # Check if already patched if [ -e "${CT_SRC_DIR}/.${basename}.patched" ]; then CT_DoLog DEBUG "Already patched '${basename}'" return 0 fi # Check if already partially patched if [ -e "${CT_SRC_DIR}/.${basename}.patching" ]; then CT_DoLog ERROR "The '${basename}' sources were partially patched." CT_DoLog ERROR "Please remove first:" CT_DoLog ERROR " - the source dir for '${basename}', in '${CT_SRC_DIR}'" CT_DoLog ERROR " - the file '${CT_SRC_DIR}/.${basename}.extracted'" CT_DoLog ERROR " - the file '${CT_SRC_DIR}/.${basename}.patching'" CT_Abort "I'll stop now to avoid any carnage..." fi touch "${CT_SRC_DIR}/.${basename}.patching" [ "${nochdir}" = "nochdir" ] || CT_Pushd "${CT_SRC_DIR}/${basename}" CT_DoLog EXTRA "Patching '${basename}'" bundled_patch_dir="${CT_LIB_DIR}/patches/${base_file}/${ver_file}" local_patch_dir="${CT_CUSTOM_PATCH_DIR}/${base_file}/${ver_file}" case "${CT_PATCH_ORDER}" in bundled) patch_dirs=("${bundled_patch_dir}");; local) patch_dirs=("${local_patch_dir}");; bundled,local) patch_dirs=("${bundled_patch_dir}" "${local_patch_dir}");; esac for d in "${patch_dirs[@]}"; do CT_DoLog DEBUG "Looking for patches in '${d}'..." if [ -n "${d}" -a -d "${d}" ]; then for p in "${d}"/*.patch; do if [ -f "${p}" ]; then CT_DoLog DEBUG "Applying patch '${p}'" CT_DoExecLog ALL patch -g0 -F1 -p1 -f <"${p}" 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 "${!cfg}" {} \; |CT_DoLog ALL done fi CT_DoExecLog DEBUG rm -f "${CT_SRC_DIR}/.${basename}.patching" CT_DoExecLog DEBUG touch "${CT_SRC_DIR}/.${basename}.patched" [ "${nochdir}" = "nochdir" ] || 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}" # Log this to the log level required by the user CT_DoLog ${CT_LOG_LEVEL_MAX} "Saving state to restart at step '${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 awk script, but a sed is easier... set |awk ' 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_CONFIG_DIR='${CT_CONFIG_DIR}'" CT_Pushd "${CT_CONFIG_DIR}" CT_DoExecLog DEBUG tar cv${tar_opt}f "${state_dir}/config_dir.tar${tar_ext}" . CT_Popd CT_DoLog DEBUG " Saving CT_CC_CORE_STATIC_PREFIX_DIR='${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 # Log this to the log level required by the user CT_DoLog ${CT_LOG_LEVEL_MAX} "Restoring state at step '${state_name}', as requested." case "${CT_DEBUG_CT_SAVE_STEPS_GZIP}" in y) tar_opt=z; tar_ext=.gz;; *) tar_opt=; tar_ext=;; esac CT_DoLog DEBUG " Removing previous build directories" CT_DoForceRmdir "${CT_PREFIX_DIR}" "${CT_CC_CORE_SHARED_PREFIX_DIR}" "${CT_CC_CORE_STATIC_PREFIX_DIR}" "${CT_CONFIG_DIR}" CT_DoExecLog DEBUG mkdir -p "${CT_PREFIX_DIR}" "${CT_CC_CORE_SHARED_PREFIX_DIR}" "${CT_CC_CORE_STATIC_PREFIX_DIR}" "${CT_CONFIG_DIR}" CT_DoLog DEBUG " Restoring CT_PREFIX_DIR='${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 CT_DoLog DEBUG " Restoring CT_CONFIG_DIR='${CT_CONFIG_DIR}'" CT_Pushd "${CT_CONFIG_DIR}" CT_DoExecLog DEBUG tar xv${tar_opt}f "${state_dir}/config_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 }