crosstool-ng/scripts/functions
Bryan Hundven 1b31314488 CT_GetCustom: Rewrite function to meet expectations
The previous version of CT_GetCustom was a bit... funky.
It didn't handle custom versions to location very well.

This new version is exactly as it appears:

CT_GetCustom <name> <version> <location>

The name is the beginning of the archive (file or directory).
The version is the second half of the archive.
The location is where it can be found. This should be made an absolute
path, but this version is expecting the path in kconfig to be absolute.

A file should extract to a directory: <name>-<version>
A directory will be copied to: <name>-<version>

This keeps our expectations of what we should get.

Signed-off-by: Bryan Hundven <bryanhundven@gmail.com>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
2015-12-08 07:20:35 -08:00

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# -*- mode: sh; tab-width: 4 -*-
# vi: ts=4:sw=4:sts=4:et
# 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() {
local ret=$?
local result
local old_trap
local intro
local file line func
local step step_depth
# To avoid printing the backtace for each sub-shell
# up to the top-level, just remember we've dumped it
if [ ! -f "${CT_WORK_DIR}/backtrace" ]; then
[ -d "${CT_WORK_DIR}" ] && touch "${CT_WORK_DIR}/backtrace"
# Print steps backtrace
step_depth=${CT_STEP_COUNT}
CT_STEP_COUNT=1 # To have a zero-indentation
CT_DoLog ERROR ""
CT_DoLog ERROR ">>"
intro="Build failed"
for((step=step_depth; step>0; step--)); do
CT_DoLog ERROR ">> ${intro} in step '${CT_STEP_MESSAGE[${step}]}'"
intro=" called"
done
# Print functions backtrace
intro="Error happened in"
CT_DoLog ERROR ">>"
for((depth=1; ${BASH_LINENO[$((${depth}-1))]}>0; depth++)); do
file="${BASH_SOURCE[${depth}]#${CT_LIB_DIR}/}"
func="${FUNCNAME[${depth}]}"
line="@${BASH_LINENO[${depth}-1]:-?}"
CT_DoLog ERROR ">> ${intro}: ${func}[${file}${line}]"
intro=" called from"
done
# If the user asked for interactive debugging, dump him/her to a shell
if [ "${CT_DEBUG_INTERACTIVE}" = "y" ]; then
# We do not want this sub-shell exit status to be caught, because
# it is absolutely legit that it exits with non-zero.
# Save the trap handler to restore it after our debug-shell
old_trap="$(trap -p ERR)"
trap -- ERR
(
exec >&6 2>&7 <&8
printf "\r \n\nCurrent command"
if [ -n "${cur_cmd}" ]; then
printf ":\n %s\n" "${cur_cmd}"
else
printf " (unknown), "
fi
printf "exited with error code: %d\n" ${ret}
printf "Please fix it up and finish by exiting the shell with one of these values:\n"
printf " 1 fixed, continue with next build command\n"
if [ -n "${cur_cmd}" ]; then
printf " 2 repeat this build command\n"
fi
printf " 3 abort build\n\n"
while true; do
${bash} --rcfile <(printf "PS1='ct-ng:\w> '\nPROMPT_COMMAND=''\n") -i
result=$?
case $result in
1) printf "\nContinuing past the failed command.\n\n"
break
;;
2) if [ -n "${cur_cmd}" ]; then
printf "\nRe-trying last command.\n\n"
break
fi
;;
3) break;;
esac
printf "\nPlease exit with one of these values:\n"
printf " 1 fixed, continue with next build command\n"
if [ -n "${cur_cmd}" ]; then
printf " 2 repeat this build command\n"
fi
printf " 3 abort build\n"
done
exit $result
)
result=$?
# Restore the trap handler
eval "${old_trap}"
case "${result}" in
1) rm -f "${CT_WORK_DIR}/backtrace"; touch "${CT_BUILD_DIR}/skip"; return;;
2) rm -f "${CT_WORK_DIR}/backtrace"; touch "${CT_BUILD_DIR}/repeat"; return;;
# 3 is an abort, continue...
esac
fi
fi
# And finally, in top-level shell, print some hints
if [ ${BASH_SUBSHELL} -eq 0 ]; then
# Help diagnose the error
CT_STEP_COUNT=1 # To have a zero-indentation
CT_DoLog ERROR ">>"
if [ "${CT_LOG_TO_FILE}" = "y" ]; then
CT_DoLog ERROR ">> For more info on this error, look at the file: '${tmp_log_file#${CT_TOP_DIR}/}'"
fi
CT_DoLog ERROR ">> There is a list of known issues, some with workarounds, in:"
CT_DoLog ERROR ">> '${CT_DOC_DIR#${CT_TOP_DIR}/}/B - Known issues.txt'"
CT_DoLog ERROR ""
CT_DoEnd ERROR
rm -f "${CT_WORK_DIR}/backtrace"
fi
exit $ret
}
# Install the fault handler
trap CT_OnError ERR
# Inherit the fault handler in subshells and functions
set -E
# Make pipes fail on the _first_ failed command
# Not supported on bash < 3.x, but we need it, so drop the obsoleting bash-2.x
set -o pipefail
# Don't hash commands' locations, and search every time it is requested.
# This is slow, but needed because of the static/shared core gcc which shall
# always match to shared if it exists, and only fallback to static if the
# shared is not found
set +o hashall
# Log policy:
# - first of all, save stdout so we can see the live logs: fd #6
# (also save stdin and stderr for use by CT_DEBUG_INTERACTIVE)
exec 6>&1 7>&2 8<&0
# - then point stdout to the log file
tmp_log_file="${CT_TOP_DIR}/build.log"
rm -f "${tmp_log_file}"
exec >>"${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_CFG=4
CT_LOG_LEVEL_FILE=5
CT_LOG_LEVEL_STATE=6
CT_LOG_LEVEL_ALL=7
CT_LOG_LEVEL_DEBUG=8
# Make it easy to use \n and !
CR=$(printf "\n")
BANG='!'
# A function to log what is happening
# Different log level are available:
# - ERROR: A serious, fatal error occurred
# - WARN: A non fatal, non serious error occurred, take your responsbility with the generated build
# - INFO: Informational messages
# - EXTRA: Extra informational messages
# - CFG: Output of various "./configure"-type scripts
# - FILE: File / archive unpacking.
# - STATE: State save & restore
# - ALL: Component's build messages
# - DEBUG: Internal debug messages
# Usage: CT_DoLog <level> [message]
# If message is empty, then stdin will be logged.
CT_DoLog() {
local max_level LEVEL level cur_l cur_L
local l
eval max_level="\${CT_LOG_LEVEL_${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 [ $# -eq 0 ]; then
cat -
else
echo -e "${*}"
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 ${max_level} ]; then
# Only print to console (fd #6) if log level is high enough.
printf "${CT_LOG_PROGRESS_BAR:+\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
# It is possible to even log local variable assignments (a-la: var=val ./cmd opts)
# Usage: CT_DoExecLog <level> [VAR=val...] <command> [parameters...]
CT_DoExecLog() {
local level="$1"
local cur_cmd
local ret
shift
(
for i in "$@"; do
cur_cmd+="'${i}' "
done
while true; do
case "${1}" in
*=*) eval export "'${1}'"; shift;;
*) break;;
esac
done
# This while-loop goes hand-in-hand with the ERR trap handler:
# - if the command terminates successfully, then we hit the break
# statement, and we exit the loop
# - if the command terminates in error, then the ERR handler kicks
# in, then:
# - if the user did *not* ask for interactive debugging, the ERR
# handler exits, and we hit the end of the sub-shell
# - if the user did ask for interactive debugging, the ERR handler
# spawns a shell. Upon termination of this shell, the ERR handler
# examines the exit status of the shell:
# - if 1, the ERR handler returns; then we hit the else statement,
# then the break, and we exit the 'while' loop, to continue the
# build;
# - if 2, the ERR handler touches the repeat file, and returns;
# then we hit the if statement, and we loop for one more
# iteration;
# - if 3, the ERR handler exits with the command's exit status,
# and we're dead;
# - for any other exit status of the shell, the ERR handler
# prints an informational message, and respawns the shell
#
# This allows a user to get an interactive shell that has the same
# environment (PATH and so on) that the failed command was ran with.
while true; do
rm -f "${CT_BUILD_DIR}/repeat"
CT_DoLog DEBUG "==> Executing: ${cur_cmd}"
"${@}" 2>&1 |CT_DoLog "${level}"
ret="${?}"
if [ -f "${CT_BUILD_DIR}/repeat" ]; then
rm -f "${CT_BUILD_DIR}/repeat"
continue
elif [ -f "${CT_BUILD_DIR}/skip" ]; then
rm -f "${CT_BUILD_DIR}/skip"
ret=0
break
else
break
fi
done
exit ${ret}
)
# Catch failure of the sub-shell
[ $? -eq 0 ]
}
# Tail message to be logged whatever happens
# Usage: CT_DoEnd <level>
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})"
}
# Remove entries referring to . and other relative paths
# Usage: CT_SanitizePath
CT_SanitizePath() {
local new
local p
local IFS=:
for p in $PATH; do
# Only accept absolute paths;
# Note: as a special case the empty string in PATH is equivalent to .
if [ -n "${p}" -a -z "${p%%/*}" ]; then
new="${new}${new:+:}${p}"
fi
done
PATH="${new}"
}
# Sanitise the directory name contained in the variable passed as argument:
# - remove duplicate /
# Usage: CT_SanitiseVarDir CT_PREFIX_DIR
CT_SanitiseVarDir() {
local var
local old_dir
local new_dir
for var in "$@"; do
eval "old_dir=\"\${${var}}\""
new_dir="$( printf "${old_dir}" \
|${sed} -r -e 's:/+:/:g;' \
)"
eval "${var}=\"${new_dir}\""
CT_DoLog DEBUG "Sanitised '${var}': '${old_dir}' -> '${new_dir}'"
done
}
# Abort the execution with an error message
# Usage: CT_Abort <message>
CT_Abort() {
CT_DoLog ERROR "$1"
false
}
# Test a condition, and print a message if satisfied
# Usage: CT_Test <message> <tests>
CT_Test() {
local ret
local m="$1"
shift
CT_DoLog DEBUG "Testing '! ( $* )'"
test "$@" && CT_DoLog WARN "$m"
return 0
}
# Test a condition, and abort with an error message if satisfied
# Usage: CT_TestAndAbort <message> <tests>
CT_TestAndAbort() {
local m="$1"
shift
CT_DoLog DEBUG "Testing '! ( $* )'"
test "$@" && CT_Abort "$m"
return 0
}
# Test a condition, and abort with an error message if not satisfied
# Usage: CT_TestAndAbort <message> <tests>
CT_TestOrAbort() {
local m="$1"
shift
CT_DoLog DEBUG "Testing '$*'"
test "$@" || CT_Abort "$m"
return 0
}
# Test the presence of a tool, or abort if not found
# Usage: CT_HasOrAbort <tool>
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 (such as on Mandriva).
# Usage: CT_Which <filename>
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 <fmt>
CT_DoDate() {
date "$1" |${sed} -r -e 's/%?N$/000000000/;'
}
CT_STEP_COUNT=1
CT_STEP_MESSAGE[${CT_STEP_COUNT}]="(top-level)"
# Memorise a step being done so that any error is caught
# Usage: CT_DoStep <loglevel> <message>
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() {
CT_DoLog DEBUG "Entering '$1'"
pushd "$1" >/dev/null 2>&1
}
CT_Popd() {
popd >/dev/null 2>&1
}
# Create a dir and cd or pushd into it
# Usage: CT_mkdir_cd <dir/to/create>
# CT_mkdir_pushd <dir/to/create>
CT_mkdir_cd() {
local dir="${1}"
mkdir -p "${dir}"
cd "${dir}"
}
CT_mkdir_pushd() {
local dir="${1}"
mkdir -p "${dir}"
CT_Pushd "${dir}"
}
# 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
case "$CT_SYS_OS" in
Linux|CYGWIN*)
mode="$(stat -c '%a' "$(dirname "${dir}")")"
;;
Darwin|*BSD)
mode="$(stat -f '%Lp' "$(dirname "${dir}")")"
;;
*)
CT_Abort "Unhandled host OS $CT_SYS_OS"
;;
esac
CT_DoExecLog ALL chmod u+w "$(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='${LD_LIBRARY_PATH}'"
export LD_LIBRARY_PATH
}
# Build up the list of allowed tarball extensions
# Add them in the prefered order; most preferred comes first
CT_DoListTarballExt() {
if [ "${CT_CONFIGURE_has_xz}" = "y" ]; then
printf ".tar.xz\n"
fi
if [ "${CT_CONFIGURE_has_lzma}" = "y" \
-o "${CT_CONFIGURE_has_xz}" = "y" ]; then
printf ".tar.lzma\n"
fi
printf ".tar.bz2\n"
printf ".tar.gz\n.tgz\n"
printf ".tar\n"
printf ".zip\n"
}
# Get the file name extension of a component
# Usage: CT_GetFileExtension <component_name-component_version> [extension]
# If found, echoes the extension to stdout, and return 0
# If not found, echoes nothing on stdout, and return !0.
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} $(CT_DoListTarballExt) /.git ''; do
if [ -e "${CT_TARBALLS_DIR}/${file}${ext}" -o -L "${CT_TARBALLS_DIR}/${file}${ext}" ]; then
echo "${ext}"
exit 0
fi
done
exit 1
}
# Try to retrieve the specified URL (HTTP or FTP)
# Usage: CT_DoGetFile <URL>
# This functions always returns true (0), as it can be legitimate not
# to find the requested URL (think about snapshots, different layouts
# for different gcc versions, etc...).
CT_DoGetFile() {
local url="${1}"
local dest="${CT_TARBALLS_DIR}/${url##*/}"
local tmp="${dest}.tmp-dl"
# Remove potential left-over from a previous run
rm -f "${tmp}"
# We also retry a few times, in case there is a transient error (eg. behind
# a dynamic IP that changes during the transfer...)
# With automated download as we are doing, it can be very dangerous 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, so force a global ${CT_CONNECT_TIMEOUT}-second
# timeout.
if [ ${CT_CONNECT_TIMEOUT} = -1 ]; then
T=
else
T="-T ${CT_CONNECT_TIMEOUT}"
fi
if CT_DoExecLog ALL wget --passive-ftp --tries=3 -nc \
--progress=dot:binary \
${T} \
-O "${tmp}" \
"${url}"
then
# Success, we got it, good!
mv "${tmp}" "${dest}"
CT_DoLog DEBUG "Got it from: \"${url}\""
else
# Woops...
rm -f "${tmp}"
CT_DoLog DEBUG "Not at this location: \"${url}\""
fi
}
# This function tries to retrieve a tarball form a local directory
# Usage: CT_GetLocal <basename> [.extension]
CT_GetLocal() {
local basename="$1"
local first_ext="$2"
local ext
# Do we already have it in *our* tarballs dir?
if ext="$( CT_GetFileExtension "${basename}" ${first_ext} )"; then
CT_DoLog DEBUG "Already have '${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} $(CT_DoListTarballExt) ''; do
CT_DoLog DEBUG "Trying '${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 gets the custom source from either a tarball or directory
# Usage: CT_GetCustom <name> <version> <location>
CT_GetCustom() {
local component_name="$1"
local component_version="$2"
local component_location="$3"
# Some local variables we use to help us figure out what to do
local component_location_type="dir" # str: 'file' or 'dir'
local component_location_filename="" # filename... if it's a file
CT_TestAndAbort \
"${component_name}: Custom location setting is empty" \
-z "${component_location}"
CT_TestAndAbort \
"${component_name}: Custom version setting is empty" \
-z "${component_version}"
if [ -f "${component_location}" ]; then
component_location_type="file"
component_location_filename="$(basename ${component_location})"
elif [ -d "${component_location}" ]; then
# Yes, it's the default, but it rules out the else case in the `if'.
component_location_type="dir"
# as -d and -f say: it's a <directory|file> and is readable!
else
CT_Abort "${component_name}: Unable to read ${component_location}, make sure the setting is correct and double check the permissions!"
fi
if [ "${component_location_type}" = "file" ]; then
CT_DoLog EXTRA "Got '${component_location}' from custom location"
# We need to know the custom tarball extension,
# so we can create a properly-named symlink, which
# we use later on in 'extract'
case "${component_location}" in
*.tar.xz|*.tar.bz2|*.tar.lzma|*.tar.gz|*.tgz|*.tar|*.zip) ;;
*) CT_Abort "Unknown extension for custom tarball '${component_location}'" ;;
esac
[ ! -L "${CT_TARBALLS_DIR}/${component_location_filename}" ] && \
CT_DoExecLog DEBUG ln -sf "${component_location}" \
"${CT_TARBALLS_DIR}/${component_location_filename}"
elif [ "${component_location_type}" = "dir" ]; then
CT_DoLog EXTRA "Got '${component_location}' from custom location"
[ ! -d "${CT_SRC_DIR}/${component_name}-${component_version}" ] && \
CT_DoExecLog DEBUG cp -al "${component_location}" \
"${CT_SRC_DIR}/${component_name}-${component_version}"
# Don't try to extract from source directory, it's extracted!
touch "${CT_SRC_DIR}/.${component_name}-${component_version}.extracted"
fi
# Don't patch a custom source, it's custom!
touch "${CT_SRC_DIR}/.${component_name}-${component_version}.patched"
}
# This function saves the specified to local storage if possible,
# and if so, symlinks it for later usage
# Usage: CT_SaveLocal </full/path/file.name>
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 <basename> [.extension] <url> [url ...]
CT_GetFile() {
local ext
local -a URLS
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="$1"
shift
;;
esac
# Does it exist localy?
if CT_GetLocal "${file}" ${first_ext}; then
return 0
fi
# No, it does not...
# If not allowed to download from the Internet, don't
if [ "${CT_FORBID_DOWNLOAD}" = "y" ]; then
CT_DoLog DEBUG "Not allowed to download from the Internet, aborting ${file} download"
return 1
fi
# Try to retrieve the file
CT_DoLog EXTRA "Retrieving '${file}'"
# Add URLs on the LAN mirror
if [ "${CT_USE_MIRROR}" = "y" ]; then
CT_TestOrAbort "Please set the mirror base URL" -n "${CT_MIRROR_BASE_URL}"
URLS+=( "${CT_MIRROR_BASE_URL}/${file%-*}" )
URLS+=( "${CT_MIRROR_BASE_URL}" )
fi
if [ "${CT_FORCE_MIRROR}" != "y" ]; then
URLS+=( "${@}" )
fi
# Scan all URLs in turn, and try to grab a tarball from there
# Do *not* try git trees (ext=/.git), this is handled in a specific
# wrapper, below
for ext in ${first_ext} $(CT_DoListTarballExt) ''; do
# Try all urls in turn
for url in "${URLS[@]}"; do
[ -n "${url}" ] || continue
CT_DoLog DEBUG "Trying '${url}/${file}${ext}'"
CT_DoGetFile "${url}/${file}${ext}"
if [ -f "${CT_TARBALLS_DIR}/${file}${ext}" ]; then
CT_DoLog DEBUG "Got '${file}' from the Internet"
CT_SaveLocal "${CT_TARBALLS_DIR}/${file}${ext}"
return 0
fi
done
done
# Just return error, someone may want to catch and handle the error
# (eg. glibc add-ons can be missing).
return 1
}
# 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 <basename> <url> <module> <tag> [dirname[=subdir]]
# Note: if '=subdir' is given, then it is used instead of 'module'.
CT_GetCVS() {
local basename="$1"
local uri="$2"
local module="$3"
local tag="${4:+-r ${4}}"
local dirname="$5"
local tmp_dir
# First try locally, then the mirror
if CT_GetFile "${basename}"; then
# Got it! Return early! :-)
return 0
fi
if [ "${CT_FORBID_DOWNLOAD}" = "y" ]; then
CT_DoLog WARN "Downloads forbidden, not trying cvs retrieval"
return 1
fi
CT_MktempDir tmp_dir
CT_Pushd "${tmp_dir}"
CT_DoExecLog ALL cvs -z 9 -d "${uri}" co -P ${tag} "${module}"
if [ -n "${dirname}" ]; then
case "${dirname}" in
*=*)
CT_DoExecLog DEBUG mv "${dirname#*=}" "${dirname%%=*}"
CT_DoExecLog ALL tar cjf "${CT_TARBALLS_DIR}/${basename}.tar.bz2" "${dirname%%=*}"
;;
*)
CT_DoExecLog ALL mv "${module}" "${dirname}"
CT_DoExecLog ALL tar cjf "${CT_TARBALLS_DIR}/${basename}.tar.bz2" "${dirname:-${module}}"
;;
esac
fi
CT_SaveLocal "${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 <basename> <url> [rev]
CT_GetSVN() {
local basename="$1"
local uri="$2"
local rev="$3"
# First try locally, then the mirror
if CT_GetFile "${basename}"; then
# Got it! Return early! :-)
return 0
fi
if [ "${CT_FORBID_DOWNLOAD}" = "y" ]; then
CT_DoLog WARN "Downloads forbidden, not trying svn retrieval"
return 1
fi
CT_MktempDir tmp_dir
CT_Pushd "${tmp_dir}"
if ! CT_DoExecLog ALL svn export ${rev:+-r ${rev}} "${uri}" "${basename}"; then
CT_DoLog WARN "Could not retrieve '${basename}'"
return 1
fi
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}"
}
# Clone a git tree
# Tries the given URLs in turn until one can get cloned. No tarball will be created.
# Prerequisites: either the server does not require password,
# or the user has already taken any action to authenticate to the server.
# The cloned tree will *not* be stored in the local tarballs dir!
# cset_or_ref can be a branch or tag, if specified as 'ref=name'
# In this case, 'git ls-remote' is used to get the sha1 and can also
# be used to get a list valid refs (e.g. HEAD, refs/heads/master, refs/tags/v3.3.0)
# Usage: CT_GetGit <basename> <cset_or_ref> <url> <out_cset>
CT_GetGit() {
local basename="${1}"
local cset_or_ref="${2}"
local url="${3}"
local _out_cset="${4}"
local ref=$(echo "${cset_or_ref}" | ${sed} -n 's/^ref=\(.*\)/\1/p')
if [ -n "$ref" ]; then
local matches=$(git ls-remote --exit-code "$url" --refs "${ref}")
local result=$?
CT_TestAndAbort "Failed to find git ref ${ref} at ${url}" "${result}" != "0"
if [ $( echo "$matches" | wc -l) -gt 1 ]; then
CT_DoLog WARN "Ambiguous ref ${ref} at ${url}, using first"
fi
local cset=$(echo "$matches" | head -n1 | cut -c1-6)
CT_DoLog INFO "ref ${ref} at ${url} has cset of ${cset}"
else
local cset=${cset_or_ref}
CT_DoLog INFO "cset ${cset}"
fi
if [ -n "${_out_cset}" ]; then
eval ${_out_cset}=\${cset}
fi
local dir="${CT_TARBALLS_DIR}/${basename}-${cset}.git"
local file="${basename}-${cset}.tar.gz"
local dest="${CT_TARBALLS_DIR}/${file}"
local tmp="${CT_TARBALLS_DIR}/${file}.tmp-dl"
# Do we already have it?
if CT_GetLocal "${file}"; then
echo ${cset}
return 0
fi
# Nope...
if [ "${CT_FORBID_DOWNLOAD}" = "y" ]; then
CT_DoLog WARN "Downloads forbidden, not trying git retrieval"
return 1
fi
# Add URLs on the LAN mirror
# We subvert the normal download method, just to look for
# looking at the local mirror
if CT_GetFile "${basename}-${cset}" .tar.gz; then
return 0
fi
CT_DoLog EXTRA "Retrieving '${basename}-${cset}' (git)"
# Remove potential left-over from a previous run
CT_DoExecLog ALL rm -rf "${tmp}.tar.gz" "${tmp}.tar" "${tmp}" "${dir}"
if CT_DoExecLog ALL git clone "${url}" "${dir}"; then
# Yep, cloned OK
CT_Pushd "${dir}"
CT_DoExecLog ALL git archive --format=tar \
--prefix="${basename}-${cset}/" \
-o "${tmp}.tar" \
"${cset}"
CT_DoExecLog ALL gzip -9 "${tmp}.tar"
CT_DoExecLog ALL mv -f "${tmp}.tar.gz" "${dest}"
CT_SaveLocal "${dest}"
CT_DoExecLog ALL rm -rf "${tmp}.tar.gz" "${tmp}.tar" "${tmp}" "${dir}"
CT_Popd
echo ${cset}
return 0
else
# Woops...
CT_DoExecLog ALL rm -rf "${dir}"
CT_DoLog Debug "Could not clone '${basename}'"
return 1
fi
}
# 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'.
# Note also that this function handles the git trees!
# Usage: CT_Extract [nochdir] <basename> [options]
# where 'options' are dependent on the source (eg. git branch/tag...)
CT_Extract() {
local nochdir="$1"
local basename
local ext
local lzma_prog
local -a tar_opts
if [ "${nochdir}" = "nochdir" ]; then
shift
nochdir="$(pwd)"
else
nochdir="${CT_SRC_DIR}"
fi
basename="$1"
shift
# Check if already extracted
if [ -e "${CT_SRC_DIR}/.${basename}.extracted" ]; then
CT_DoLog DEBUG "Already extracted '${basename}'"
return 0
fi
if ! ext="$(CT_GetFileExtension "${basename}")"; then
CT_DoLog WARN "'${basename}' not found in '${CT_TARBALLS_DIR}'"
return 1
fi
local full_file="${CT_TARBALLS_DIR}/${basename}${ext}"
# Check if previously partially extracted
if [ -e "${CT_SRC_DIR}/.${basename}.extracting" ]; then
CT_DoLog ERROR "The '${basename}' sources were partially extracted."
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}.extracting'"
CT_Abort "I'll stop now to avoid any carnage..."
fi
CT_DoExecLog DEBUG touch "${CT_SRC_DIR}/.${basename}.extracting"
CT_Pushd "${nochdir}"
CT_DoLog EXTRA "Extracting '${basename}'"
CT_DoExecLog FILE mkdir -p "${basename}"
tar_opts=( "--strip-components=1" )
tar_opts+=( "-C" "${basename}" )
tar_opts+=( "-xv" )
# One note here:
# - lzma can be handled either with 'xz' or 'lzma'
# - we get lzma tarball only if either or both are available
# - so, if we get an lzma tarball, and either 'xz' or 'lzma' is
# missing, we can assume the other is available
if [ "${CT_CONFIGURE_has_lzma}" = "y" ]; then
lzma_prog="lzma -fdc"
else
lzma_prog="xz -fdc"
fi
case "${ext}" in
.tar.xz) xz -fdc "${full_file}" | CT_DoExecLog FILE tar "${tar_opts[@]}" -f -;;
.tar.lzma) ${lzma_prog} "${full_file}" | CT_DoExecLog FILE tar "${tar_opts[@]}" -f -;;
.tar.bz2) bzip2 -dc "${full_file}" | CT_DoExecLog FILE tar "${tar_opts[@]}" -f -;;
.tar.gz|.tgz) gzip -dc "${full_file}" | CT_DoExecLog FILE tar "${tar_opts[@]}" -f -;;
.tar) CT_DoExecLog FILE tar "${tar_opts[@]}" -f "${full_file}";;
.zip) CT_DoExecLog FILE unzip "${@}" "${full_file}";;
/.git) CT_ExtractGit "${basename}" "${@}";;
*) CT_DoLog WARN "Don't know how to handle '${basename}${ext}': unknown extension"
return 1
;;
esac
# Don't mark as being extracted for git
case "${ext}" in
/.git) ;;
*) CT_DoExecLog DEBUG touch "${CT_SRC_DIR}/.${basename}.extracted";;
esac
CT_DoExecLog DEBUG rm -f "${CT_SRC_DIR}/.${basename}.extracting"
CT_Popd
}
# Create a working git clone of a local git repository
# Usage: CT_ExtractGit <basename> [ref]
# where 'ref' is the reference to use:
# the full name of a branch, like "remotes/origin/branch_name"
# a date as understandable by git, like "YYYY-MM-DD[ hh[:mm[:ss]]]"
# a tag name
# If 'ref' is not given, the current repository HEAD will be used
CT_ExtractGit() {
local basename="${1}"
local ref="${2}"
local repo
local ref_type
# pushd now to be able to get git revlist in case ref is a date
repo="${CT_TARBALLS_DIR}/${basename}"
CT_Pushd "${repo}"
# What kind of reference is ${ref} ?
if [ -z "${ref}" ]; then
ref_type=head
ref=$(git rev-list -n1 HEAD)
elif git tag |${grep} -E "^${ref}$" >/dev/null 2>&1; then
ref_type=tag
elif git branch -a --no-color |${grep} -E "^. ${ref}$" >/dev/null 2>&1; then
ref_type=branch
elif date -d "${ref}" >/dev/null 2>&1; then
ref_type=date
ref=$(git rev-list -n1 --before="${ref}")
else
CT_Abort "Reference '${ref}' is an incorrect git reference: neither tag, branch nor date"
fi
CT_Popd
CT_DoExecLog FILE rmdir "${basename}"
case "${ref_type}" in
branch) CT_DoExecLog FILE git clone -b "${ref}" "${repo}" "${basename}" ;;
*) CT_DoExecLog FILE git clone "${repo}" "${basename}"
CT_Pushd "${basename}"
CT_DoExecLog FILE git checkout "${ref}"
CT_Popd
;;
esac
}
# Patches the specified component
# See CT_Extract, above, for explanations on 'nochdir'
# Usage: CT_Patch [nochdir] <packagename> <packageversion>
# If the package directory is *not* packagename-packageversion, then
# the caller must cd into the proper directory first, and call us
# with nochdir
CT_Patch() {
local nochdir="$1"
local pkgname
local version
local pkgdir
local base_file
local ver_file
local d
local -a patch_dirs
local bundled_patch_dir
local local_patch_dir
local bundled_exp_patch_dir
local local_exp_patch_dir
if [ "${nochdir}" = "nochdir" ]; then
shift
pkgname="$1"
version="$2"
pkgdir="${pkgname}-${version}"
nochdir="$(pwd)"
else
pkgname="$1"
version="$2"
pkgdir="${pkgname}-${version}"
nochdir="${CT_SRC_DIR}/${pkgdir}"
fi
# Check if already patched
if [ -e "${CT_SRC_DIR}/.${pkgdir}.patched" ]; then
CT_DoLog DEBUG "Already patched '${pkgdir}'"
return 0
fi
# Check if already partially patched
if [ -e "${CT_SRC_DIR}/.${pkgdir}.patching" ]; then
CT_DoLog ERROR "The '${pkgdir}' sources were partially patched."
CT_DoLog ERROR "Please remove first:"
CT_DoLog ERROR " - the source dir for '${pkgdir}', in '${CT_SRC_DIR}'"
CT_DoLog ERROR " - the file '${CT_SRC_DIR}/.${pkgdir}.extracted'"
CT_DoLog ERROR " - the file '${CT_SRC_DIR}/.${pkgdir}.patching'"
CT_Abort "I'll stop now to avoid any carnage..."
fi
touch "${CT_SRC_DIR}/.${pkgdir}.patching"
CT_Pushd "${nochdir}"
CT_DoLog EXTRA "Patching '${pkgdir}'"
bundled_patch_dir="${CT_LIB_DIR}/patches/${pkgname}/${version}"
bundled_patch_arch_dir="${bundled_patch_dir}/${CT_ARCH}"
local_patch_dir="${CT_LOCAL_PATCH_DIR}/${pkgname}/${version}"
case "${CT_PATCH_ORDER}" in
bundled) patch_dirs=("${bundled_patch_dir}" "${bundled_patch_arch_dir}");;
local) patch_dirs=("${local_patch_dir}");;
bundled,local) patch_dirs=("${bundled_patch_dir}" "${bundled_patch_arch_dir}" "${local_patch_dir}");;
local,bundled) patch_dirs=("${local_patch_dir}" "${bundled_patch_dir}" "${bundled_patch_arch_dir}");;
none) patch_dirs=;;
esac
for d in "${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_DoExecLog ALL ${patch} --no-backup-if-mismatch -g0 -F1 -p1 -f -i "${p}"
fi
done
if [ "${CT_PATCH_SINGLE}" = "y" ]; then
break
fi
fi
done
if [ "${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 chmod -v u+w {} \; \
-exec cp -v "${!cfg}" {} \; |CT_DoLog ALL
done
fi
CT_DoExecLog DEBUG touch "${CT_SRC_DIR}/.${pkgdir}.patched"
CT_DoExecLog DEBUG rm -f "${CT_SRC_DIR}/.${pkgdir}.patching"
CT_Popd
}
# Two wrappers to call config.(guess|sub) either from CT_TOP_DIR or CT_LIB_DIR.
# Those from CT_TOP_DIR, if they exist, will be be more recent than those from CT_LIB_DIR.
CT_DoConfigGuess() {
if [ -x "${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_ENDIAN}" in
big)
target_endian_eb=eb
target_endian_be=be
target_endian_el=
target_endian_le=
CT_ARCH_ENDIAN_CFLAG="-mbig-endian"
CT_ARCH_ENDIAN_LDFLAG="-Wl,-EB"
;;
little)
target_endian_eb=
target_endian_be=
target_endian_el=el
target_endian_le=le
CT_ARCH_ENDIAN_CFLAG="-mlittle-endian"
CT_ARCH_ENDIAN_LDFLAG="-Wl,-EL"
;;
esac
# Set the bitness suffix
case "${CT_ARCH_BITNESS}" in
32)
target_bits_32=32
target_bits_64=
;;
64)
target_bits_32=
target_bits_64=64
;;
esac
# Build the default architecture tuple part
CT_TARGET_ARCH="${CT_ARCH}${CT_ARCH_SUFFIX}"
# Set defaults for the system part of the tuple. Can be overriden
# by architecture-specific values.
case "${CT_LIBC}" in
*glibc) CT_TARGET_SYS=gnu;;
uClibc) CT_TARGET_SYS=uclibc;;
musl) CT_TARGET_SYS=musl;;
avr-libc)
# avr-libc only seems to work with the non-canonical "avr" target.
CT_TARGET_SKIP_CONFIG_SUB=y
CT_TARGET_SYS= # CT_TARGET_SYS must be empty too
;;
*) CT_TARGET_SYS=elf;;
esac
# 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=${CT_ARCH_FPU}"; }
case "${CT_ARCH_FLOAT}" in
hard)
CT_ARCH_FLOAT_CFLAG="-mhard-float"
CT_ARCH_WITH_FLOAT="--with-float=hard"
;;
soft)
CT_ARCH_FLOAT_CFLAG="-msoft-float"
CT_ARCH_WITH_FLOAT="--with-float=soft"
;;
softfp)
CT_ARCH_FLOAT_CFLAG="-mfloat-abi=softfp"
CT_ARCH_WITH_FLOAT="--with-float=softfp"
;;
esac
# 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="${CT_TARGET}${CT_TARGET_VENDOR:+-${CT_TARGET_VENDOR}}"
CT_TARGET="${CT_TARGET}${CT_TARGET_KERNEL:+-${CT_TARGET_KERNEL}}"
CT_TARGET="${CT_TARGET}${CT_TARGET_SYS:+-${CT_TARGET_SYS}}"
# Sanity checks
__sed_alias=""
if [ -n "${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}:${__sed_alias}:" in
:*" "*:*:*:) CT_Abort "Don't use spaces in the vendor string, it breaks things.";;
:*"-"*:*:*:) CT_Abort "Don't use dashes in the vendor string, it breaks things.";;
:*:*" "*:*:) CT_Abort "Don't use spaces in the target alias, it breaks things.";;
:*:*:*" "*:) CT_Abort "Don't use spaces in the target sed transform, it breaks things.";;
esac
# Canonicalise it
if [ "${CT_TARGET_SKIP_CONFIG_SUB}" != "y" ]; then
CT_TARGET=$(CT_DoConfigSub "${CT_TARGET}")
fi
# 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 creates a tarball of the specified directory, but
# only if it exists
# Usage: CT_DoTarballIfExists <dir> <tarball_basename> [extra_tar_options [...]]
CT_DoTarballIfExists() {
local dir="$1"
local tarball="$2"
shift 2
local -a extra_tar_opts=( "$@" )
local -a compress
case "${CT_DEBUG_CT_SAVE_STEPS_GZIP}" in
y) compress=( gzip -c -3 - ); tar_ext=.gz;;
*) compress=( cat - ); tar_ext=;;
esac
if [ -d "${dir}" ]; then
CT_DoLog DEBUG " Saving '${dir}'"
{ tar c -C "${dir}" -v -f - "${extra_tar_opts[@]}" . \
|"${compress[@]}" >"${tarball}.tar${tar_ext}" ;
} 2>&1 |${sed} -r -e 's/^/ /;' |CT_DoLog STATE
else
CT_DoLog STATE " Not saving '${dir}': does not exist"
fi
}
# This function extracts a tarball to the specified directory, but
# only if the tarball exists
# Usage: CT_DoExtractTarballIfExists <tarball_basename> <dir> [extra_tar_options [...]]
CT_DoExtractTarballIfExists() {
local tarball="$1"
local dir="$2"
shift 2
local -a extra_tar_opts=( "$@" )
local -a uncompress
case "${CT_DEBUG_CT_SAVE_STEPS_GZIP}" in
y) uncompress=( gzip -c -d ); tar_ext=.gz;;
*) uncompress=( cat ); tar_ext=;;
esac
if [ -f "${tarball}.tar${tar_ext}" ]; then
CT_DoLog DEBUG " Restoring '${dir}'"
CT_DoForceRmdir "${dir}"
CT_DoExecLog DEBUG mkdir -p "${dir}"
{ "${uncompress[@]}" "${tarball}.tar${tar_ext}" \
|tar x -C "${dir}" -v -f - "${extra_tar_opts[@]}" ;
} 2>&1 |${sed} -r -e 's/^/ /;' |CT_DoLog STATE
else
CT_DoLog STATE " Not restoring '${dir}': does not exist"
fi
}
# This function saves the state of the toolchain to be able to restart
# at any one point
# Usage: CT_DoSaveState <next_step_name>
CT_DoSaveState() {
[ "${CT_DEBUG_CT_SAVE_STEPS}" = "y" ] || return 0
local state_name="$1"
local state_dir="${CT_STATE_DIR}/${state_name}"
CT_DoLog INFO "Saving state to restart at step '${state_name}'..."
rm -rf "${state_dir}"
mkdir -p "${state_dir}"
CT_DoLog STATE " 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;' >"${state_dir}/env.sh"
CT_DoTarballIfExists "${CT_BUILDTOOLS_PREFIX_DIR}" "${state_dir}/buildtools_dir"
CT_DoTarballIfExists "${CT_CONFIG_DIR}" "${state_dir}/config_dir"
CT_DoTarballIfExists "${CT_PREFIX_DIR}" "${state_dir}/prefix_dir" --exclude '*.log'
CT_DoLog STATE " Saving log file"
exec >/dev/null
case "${CT_DEBUG_CT_SAVE_STEPS_GZIP}" in
y) gzip -3 -c "${tmp_log_file}" >"${state_dir}/log.gz";;
*) cat "${tmp_log_file}" >"${state_dir}/log";;
esac
exec >>"${tmp_log_file}"
}
# This function restores a previously saved state
# Usage: CT_DoLoadState <state_name>
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."
CT_DoExtractTarballIfExists "${state_dir}/prefix_dir" "${CT_PREFIX_DIR}"
CT_DoExtractTarballIfExists "${state_dir}/config_dir" "${CT_CONFIG_DIR}"
CT_DoExtractTarballIfExists "${state_dir}/buildtools_dir" "${CT_BUILDTOOLS_PREFIX_DIR}"
# Restore the environment, discarding any error message
# (for example, read-only bash internals)
CT_DoLog STATE " Restoring environment"
. "${state_dir}/env.sh" >/dev/null 2>&1 || true
# Restore the new RESTART and STOP steps
CT_RESTART="${old_RESTART}"
CT_STOP="${old_STOP}"
unset old_stop old_restart
CT_DoLog STATE " Restoring log file"
exec >/dev/null
case "${CT_DEBUG_CT_SAVE_STEPS_GZIP}" in
y) gzip -dc "${state_dir}/log.gz" >"${tmp_log_file}";;
*) cat "${state_dir}/log" >"${tmp_log_file}";;
esac
cat "${state_dir}/tail.log" >>"${tmp_log_file}"
exec >>"${tmp_log_file}"
rm -f "${state_dir}/tail.log"
}
# This function sets a kconfig option to a specific value in a .config file
# Usage: CT_KconfigSetOption <option> <value> <file>
CT_KconfigSetOption() {
option="$1"
value="$2"
file="$3"
${grep} -E -q "^${option}=.*" "${file}" && \
${sed} -i -r -e "s;^${option}=.*$;${option}=${value};" "${file}" || \
${grep} -E -q "^# ${option} is not set$" "${file}" && \
${sed} -i -r -e "s;^# ${option} is not set$;${option}=${value};" "${file}" || \
echo "${option}=${value}" >> "${file}"
}
# This function enables a kconfig option to '=y' in a .config file
# Usage: CT_KconfigEnableOption <option> <file>
CT_KconfigEnableOption() {
option="$1"
file="$2"
CT_KconfigSetOption "${option}" "y" "${file}"
}
# This function disables a kconfig option in a .config file
# Usage: CT_KconfigDisableOption <option> <file>
CT_KconfigDisableOption() {
option="${1}"
file="${2}"
${grep} -E -q "^# ${option} is not set$" "${file}" || \
${grep} -E -q "^${option}=.*$" "${file}" && \
${sed} -i -r -e "s;^${option}=.*$;# ${option} is not set;" "${file}" || \
echo "# ${option} is not set" >> "${file}"
}
# This function deletes a kconfig option in a .config file, no matter if it
# is set or commented out.
# Usage: CT_KconfigDeleteOption <option> <file>
CT_KconfigDeleteOption() {
option="${1}"
file="${2}"
${grep} -E -q "^# ${option} is not set$" "${file}" && \
${sed} -i -r -e "/^# ${option} is not set$/d" "${file}" || \
${grep} -E -q "^${option}=.*$" "${file}" && \
${sed} -i -r -e "/^${option}=.*$/d" "${file}" || true
}