ExternalVendorCode/crosstool-ng
1
0
Fork 0
mirror of https://github.com/crosstool-ng/crosstool-ng.git synced 2024-12-19 12:57:53 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity
1029dcf91a
crosstool-ng/scripts/functions
hyc 8762c7698c Preliminary bionic/Android support 
Mostly from Crystax NDK
2017-05-14 15:23:34 -07:00

1918 lines
69 KiB
Bash
Raw Blame History

# -*- mode: sh; tab-width: 4 -*-
# vi: ts=4:sw=4:sts=4:et
# This file contains some useful common functions
# Copyright 2007 Yann E. MORIN
# Licensed under the GPL v2. See COPYING in the root of this package
CT_LoadConfig() {
local o
# Parse the configuration file
# It has some info about the logging facility, so include it early
# It also sets KERNEL/ARCH/... for file inclusion below. Does not handle
# recursive definitions yet. We don't need arrays at this point.
CT_TestOrAbort "Configuration file not found. Please create one." -r .config
. .config
# Include sub-scripts instead of calling them: that way, we do not have to
# export any variable, nor re-parse the configuration and functions files.
. "${CT_LIB_DIR}/scripts/build/internals.sh"
. "${CT_LIB_DIR}/scripts/build/arch.sh"
. "${CT_LIB_DIR}/scripts/build/companion_tools.sh"
. "${CT_LIB_DIR}/scripts/build/kernel/${CT_KERNEL}.sh"
. "${CT_LIB_DIR}/scripts/build/companion_libs.sh"
. "${CT_LIB_DIR}/scripts/build/binutils/${CT_BINUTILS}.sh"
. "${CT_LIB_DIR}/scripts/build/libc/${CT_LIBC}.sh"
. "${CT_LIB_DIR}/scripts/build/cc.sh"
. "${CT_LIB_DIR}/scripts/build/debug.sh"
. "${CT_LIB_DIR}/scripts/build/test_suite.sh"
# Target tuple: CT_TARGET needs a little love:
CT_DoBuildTargetTuple
# Kludge: If any of the configured options needs CT_TARGET,
# then rescan the options file now. This also handles recursive variables;
# but we don't want to loop forever if there's a circular reference.
oldvals=""
try=0
while [ "$try" -le 10 ]; do
. .config
vals=`set | ${grep} -E '^CT_'`
if [ "$oldvals" = "$vals" ]; then
break
fi
oldvals="$vals"
try=$[ try + 1 ]
done
if [ "$try" -gt 10 ]; then
CT_Abort "Variables in .config recurse too deep."
fi
# Double eval: first eval substitutes option name, second eval unescapes quotes
# and whitespace.
for o in `set | ${sed} -rn 's/^(CT_[A-Za-z0-9_]*_ARRAY)=.*/\1/p'`; do
eval "eval $o=(\"\$$o\")"
done
}
# 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="$(trap -p ERR)"
trap -- ERR
(
CT_LogDisable # In this subshell
printf "\r \n\nCurrent command"
if [ -n "${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: '${CT_BUILD_LOG#${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_DoLog ERROR ">> If you feel this is a bug in crosstool-NG, report it at:"
CT_DoLog ERROR ">> https://github.com/crosstool-ng/crosstool-ng/issues/"
CT_DoLog ERROR ">>"
CT_DoLog ERROR ">> Make sure your report includes all the information pertinent to this issue."
CT_DoLog ERROR ">> Read the bug reporting guidelines here:"
CT_DoLog ERROR ">> http://crosstool-ng.github.io/support/"
CT_DoLog ERROR ""
CT_DoEnd ERROR
rm -f "${CT_WORK_DIR}/backtrace"
fi
exit $ret
}
# Install the fault handler
trap CT_OnError ERR
# Inherit the fault handler in subshells and functions
set -E
# Make pipes fail on the _first_ failed command
# Not supported on bash < 3.x, but we need it, so drop the obsoleting bash-2.x
set -o pipefail
# Don't hash commands' locations, and search every time it is requested.
# This is slow, but needed because of the static/shared core gcc which shall
# always match to shared if it exists, and only fallback to static if the
# shared is not found
set +o hashall
# Log policy:
# - first of all, save stdout so we can see the live logs: fd #6
# (also save stdin and stderr for use by CT_DEBUG_INTERACTIVE)
# FIXME: it doesn't look like anyone is overriding stdin/stderr. Do we need
# to save/restore them?
CT_LogEnable() {
local clean=no
local arg
for arg in "$@"; do eval "$arg"; done
exec 6>&1 7>&2 8<&0
CT_BUILD_LOG="${CT_TOP_DIR}/build.log"
CT_LOG_ENABLED=y
if [ "$clean" = "yes" ]; then
rm -f "${CT_BUILD_LOG}"
fi
exec >>"${CT_BUILD_LOG}"
}
# Restore original stdout, stderr and stdin
CT_LogDisable() {
exec >&6 2>&7 <&8
CT_LOG_ENABLED=
}
# The different log levels:
CT_LOG_LEVEL_ERROR=0
CT_LOG_LEVEL_WARN=1
CT_LOG_LEVEL_INFO=2
CT_LOG_LEVEL_EXTRA=3
CT_LOG_LEVEL_CFG=4
CT_LOG_LEVEL_FILE=5
CT_LOG_LEVEL_STATE=6
CT_LOG_LEVEL_ALL=7
CT_LOG_LEVEL_DEBUG=8
# Make it easy to use \n and !
CR=$(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
if [ -n "${CT_LOG_ENABLED}" ]; then
printf "[%-5s]%*s%s%s\n" "${cur_L}" "${indent}" " " "${line}"
# If log file has been set up, fd#6 is console and it only
# gets the most important messages.
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
elif [ ${cur_l} -le ${CT_LOG_LEVEL_WARN} ]; then
printf "[%-5s]%*s%s%s\n" "${cur_L}" "${indent}" " " "${line}"
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="${new}"
}
# Sanitize the directory name contained in the variable passed as argument:
# - remove duplicate /
# - remove . (current dir) at the beginning, in the middle or at the end
# - resolve .. (parent dir) if there is a previous component
# - remove .. (parent dir) if at the root
#
# Usage: CT_SanitizeVarDir CT_PREFIX_DIR
CT_SanitizeVarDir() {
local var
local old_dir
local new_dir tmp
for var in "$@"; do
eval "old_dir=\"\${${var}}\""
new_dir=$( echo "${old_dir}" | ${awk} '
{
isabs = $1 == "" # Started with a slash
trail = $NF == "" # Ending with a slash
ncomp = 0 # Components in a path so far
for (i = 1; i <= NF; i++) {
# Double-slash or current dir? Ignore
if ($i == "" || $i == ".") {
continue;
}
# .. pops the last component unless it is at the beginning
if ($i == ".." && ncomp != 0 && comps[ncomp] != "..") {
ncomp--;
continue;
}
comps[++ncomp] = $i;
}
seencomp = 0
for (i = 1; i <= ncomp; i++) {
if (comps[i] == ".." && isabs) {
# /../ at the beginning is equivalent to /
continue;
}
printf "%s%s", isabs || i != 1 ? "/" : "", comps[i];
seencomp = 1;
}
if (!seencomp && !isabs && !trail) {
# Eliminated all components, but no trailing slash -
# if the result is appended with /foo, must not become absolute
printf ".";
}
if ((!seencomp && isabs) || (seencomp && trail)) {
printf "/";
}
}' FS=/ )
eval "${var}=\"${new_dir}\""
CT_DoLog DEBUG "Sanitized '${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 "${CT_CONFIGURE_has_stat_flavor_GNU},${CT_CONFIGURE_has_stat_flavor_BSD}" in
y,*)
mode="$(stat -c '%a' "$(dirname "${dir}")")"
;;
*,y)
mode="$(stat -f '%Lp' "$(dirname "${dir}")")"
;;
*)
CT_Abort "Unknown stat format options"
;;
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
}
# 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() {
printf ".tar.xz\n"
printf ".tar.lzma\n"
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"
local ok
local T
# Remove potential left-over from a previous run
rm -f "${tmp}"
# Replace a special value of '-1' with empty string
if [ ${CT_CONNECT_TIMEOUT} != -1 ]; then
T="${CT_CONNECT_TIMEOUT}"
fi
if [ "${CT_DOWNLOAD_AGENT_WGET}" = "y" ]; then
if CT_DoExecLog ALL wget ${CT_DOWNLOAD_WGET_OPTIONS} \
${T:+-T ${T}} \
-O "${tmp}" \
"${url}"; then
ok=y
fi
elif [ "${CT_DOWNLOAD_AGENT_CURL}" = "y" ]; then
if CT_DoExecLog ALL curl ${CT_DOWNLOAD_CURL_OPTIONS} \
${T:+--connect-timeout ${T}} \
-o "${tmp}" \
"${url}"; then
ok=y
fi
fi
if [ "${ok}" = "y" ]; 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}-${component_version}" ] && \
CT_DoExecLog DEBUG ln -sf "${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
}
# Get a component from Linaro archives.
# Usage: CT_GetLinaro <component> <version>
CT_GetLinaro() {
local comp="$1"
local version="$2"
local linaro_version
local yyyymm_p
local yymm
local base
case "${version}" in
linaro-*)
linaro_version="${version#linaro-}"
;;
*)
CT_Abort "Version ${version} is not a Linaro package"
;;
esac
# Recent releases reside in top of the directory tree; older releases
# are moved into the archive. Subdirectories are named differently
# in archive!
# In archive, some URLs also contain base component version
# (e.g. "gcc-linaro/4.9") while some do not (e.g. just "newlib-linaro").
base="${linaro_version%%-*}"
# Strip base version, first two digits of the year and optional patchlevel
yymm="${linaro_version#*-??}"
yymm="${yymm%-*}"
CT_GetFile "${comp}-${version}" \
"https://releases.linaro.org/components/toolchain/${comp}-linaro/${linaro_version}" \
"https://releases.linaro.org/archive/${yymm}/components/toolchain/${comp}-linaro/${base}" \
"https://releases.linaro.org/archive/${yymm}/components/toolchain/${comp}-linaro"
}
# 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 DEBUG "ref ${ref} at ${url} has cset of ${cset}"
else
local cset=${cset_or_ref}
CT_DoLog DEBUG "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="$1"
local basename
local ext
local -a tar_opts
if [ "${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" )
case "${ext}" in
.tar.xz) xz -fdc "${full_file}" | CT_DoExecLog FILE tar "${tar_opts[@]}" -f -;;
.tar.lzma) xz -fdc "${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_OVERRIDE_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" "$@"
fi
}
# Normally, each step is executed in a sub-shell and thus cannot modify the
# environment for the next step(s). When this is needed, it can do so by
# invoking this function.
# Usage: CT_EnvModify VAR VALUE
CT_EnvModify() {
echo "${1}=\"${2}\"" >> "${CT_BUILD_DIR}/env.modify.sh"
}
# 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 "${CT_LIBC}" in
*glibc) CT_TARGET_SYS=gnu;;
uClibc) CT_TARGET_SYS=uclibc;;
musl) CT_TARGET_SYS=musl;;
bionic) CT_TARGET_SYS=android;;
avr-libc)
# avr-libc only seems to work with the non-canonical "avr" target.
CT_TARGET_SKIP_CONFIG_SUB=y
CT_TARGET_SYS= # CT_TARGET_SYS must be empty too
;;
*) CT_TARGET_SYS=elf;;
esac
# Set the default values for ARCH, ABI, CPU, TUNE, FPU and FLOAT
unset CT_ARCH_ARCH_CFLAG CT_ARCH_ABI_CFLAG CT_ARCH_CPU_CFLAG CT_ARCH_TUNE_CFLAG CT_ARCH_FPU_CFLAG CT_ARCH_FLOAT_CFLAG
unset CT_ARCH_WITH_ARCH CT_ARCH_WITH_ABI CT_ARCH_WITH_CPU CT_ARCH_WITH_TUNE CT_ARCH_WITH_FPU CT_ARCH_WITH_FLOAT
[ "${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} ${CT_ARCH_ENDIAN_LDFLAG}"
# Now, a multilib quirk. We may not be able to pass CT_ARCH_TARGET_CFLAGS
# and CT_ARCH_TARGET_LDFLAGS to gcc: even though GCC build appends the multilib
# flags afterwards, on some architectures the build breaks because some
# flags do not completely override each other. For example, on mips target,
# 'gcc -mabi=32' and 'gcc -mabi=n32' both work, but 'gcc -mabi=32 -mabi=n32'
# triggers an internal linker error. Likely a bug in GNU binutils, but we
# have to work it around for now: *do not pass the CT_ARCH_TARGET_ flags*.
# Instead, save them into a different variable here. Then, after the first
# core pass, we'll know which of them vary with multilibs (i.e. must be
# filtered out).
if [ "${CT_MULTILIB}" = "y" ]; then
CT_ARCH_TARGET_CFLAGS_MULTILIB="${CT_ARCH_TARGET_CFLAGS}"
CT_ARCH_TARGET_CFLAGS=
CT_ARCH_TARGET_LDFLAGS_MULTILIB="${CT_ARCH_TARGET_LDFLAGS}"
CT_ARCH_TARGET_LDFLAGS=
fi
}
# 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_PREFIX_DIR}" "${state_dir}/prefix_dir" --exclude '*.log'
CT_DoLog STATE " Saving log file"
CT_LogDisable
case "${CT_DEBUG_CT_SAVE_STEPS_GZIP}" in
y) gzip -3 -c "${CT_BUILD_LOG}" >"${state_dir}/log.gz";;
*) cat "${CT_BUILD_LOG}" >"${state_dir}/log";;
esac
CT_LogEnable
}
# 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 "${state_dir}"
CT_DoLog INFO "Restoring state at step '${state_name}', as requested."
CT_DoExtractTarballIfExists "${state_dir}/prefix_dir" "${CT_PREFIX_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="${old_STOP}"
unset old_stop old_restart
CT_DoLog STATE " Restoring log file"
CT_LogDisable
mv "${CT_BUILD_LOG}" "${CT_BUILD_LOG}.tail"
case "${CT_DEBUG_CT_SAVE_STEPS_GZIP}" in
y) gzip -dc "${state_dir}/log.gz" >"${CT_BUILD_LOG}";;
*) cat "${state_dir}/log" >"${CT_BUILD_LOG}";;
esac
cat "${CT_BUILD_LOG}.tail" >>"${CT_BUILD_LOG}"
CT_LogEnable
rm -f "${CT_BUILD_LOG}.tail"
}
# This function sets a kconfig option to a specific value in a .config file
# Usage: CT_KconfigSetOption <option> <value> <file>
CT_KconfigSetOption() {
local option="$1"
local value="$2"
local 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() {
local option="$1"
local file="$2"
CT_KconfigSetOption "${option}" "y" "${file}"
}
# This function disables a kconfig option in a .config file
# Usage: CT_KconfigDisableOption <option> <file>
CT_KconfigDisableOption() {
local option="${1}"
local 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() {
local option="${1}"
local file="${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
}
# Multilib iterator. The caller should be in a directory where the directories
# will be created, one per multilib, and the specified command will be run in
# each of them. The following arguments will be passed to the invoked command:
# multi_flags CFLAGS for this multilib
# multi_dir GCC internal library location for the multilib
# multi_os_dir OS library location for the multilib
# multi_os_dir_gcc Same as multi_os_dir, preserved from GCC output
# multi_root Sysroot for this multilib
# multi_target Target tuple, either as reported by GCC or by our guesswork
# multi_count Total number of multilibs
# multi_index Index of the current multilib
# Any additional arguments passed to this function will be forwarded to the called
# function as well.
# Usage: CT_IterateMultilibs <function> <prefix> <additional-args...>
CT_IterateMultilibs() {
local func="${1}"
local prefix="${2}"
local -a multilibs
local multi_dir multi_os_dir multi_os_dir_gcc multi_root multi_flags multi_index multi_target
local root_suffix
local dir_postfix
# Name used internally below
if [ "${prefix}" = "sysroot-check" ]; then
CT_Abort "Bad prefix used in CT_IterateMultilibs"
fi
# Drop mandatory arguments
shift 2
# If gcc is not configured for multilib, it still prints a single line
# for the default settings
multilibs=( $("${CT_TARGET}-${CT_CC}" -print-multi-lib 2>/dev/null) )
CT_DoExecLog ALL rm -rf "sysroot-check"
for multilib in "${multilibs[@]}"; do
# GCC makes the distinction between:
# multilib (-print-multi-lib or -print-multi-directory) and
# multilib-os (--print-multi-os-directory)
# as the gcc library and gcc sysroot library paths, respectively.
# For example, on x86_64:
# multilib: -m32=32 -m64=.
# multilib-os: -m32=../lib -m64=../lib64
# Moreover, while some multilibs can coexist in the same sysroot (e.g.
# on x86), some have a "sysroot suffix" to separate incompatible variants.
# Such sysroot suffixes combine with multilib-os directories, e.g.
# on sh4 with -m4a multilib, the search order in sysroot is (dropping some
# directories for brevity:
# <sysroot>/m4a/lib/m4a/
# <sysroot>/m4a/usr/lib/m4a/
# <sysroot>/m4a/lib/
# <sysroot>/m4a/usr/lib/
# The problem is that while GCC itself is aware of these subtleties, the
# binutils (notably, ld) it invokes under the hood are not. For example,
# if a shared library libfoo.so.1 requires libbar.so.1, ld will only search
# for libbar.so.1 in <sysroot>/m4a/usr/lib, but not in <sysroot>/m4a/usr/lib/m4a.
# In other words, 'gcc -lfoo -lbar' will work for both the default and -m4a
# cases, and 'gcc -lfoo' will work for the default, but not for -m4a. To
# address this, we first try to determine if the sysroot alone makes the
# configuration sufficiently unique. If there are no multilibs within the
# same suffixed sysroot, we can drop the multi_os_dir and both gcc and ld
# will work. If not, we'll supply both multi_root/multi_os_dir (which will
# likely break later, e.g. while building final GCC with C++ support). But,
# we've done all we can.
# We do supply original multi_os_dir for consumers that need to look inside
# GCC's directories (e.g. to locate the libraries), under the name of
# multi_os_dir_gcc.
multi_flags=$( echo "${multilib#*;}" | ${sed} -r -e 's/@/ -/g;' )
multi_dir="${multilib%%;*}"
multi_os_dir=$( "${CT_TARGET}-${CT_CC}" -print-multi-os-directory ${multi_flags} )
multi_root=$( "${CT_TARGET}-${CT_CC}" -print-sysroot ${multi_flags} )
root_suffix="${multi_root#${CT_SYSROOT_DIR}}"
CT_DoExecLog ALL mkdir -p "sysroot-check${root_suffix}"
if [ -e "sysroot-check${root_suffix}/seen" ]; then
CT_DoExecLog ALL rm -f "sysroot-check${root_suffix}/unique"
else
CT_DoExecLog ALL touch "sysroot-check${root_suffix}/seen" \
"sysroot-check${root_suffix}/unique"
fi
done
# Now, actual iteration.
# This uses either GCC's multiarch feature (if supported; if not,
# GCC prints nothing and exits with status 0), falling back to calling
# the architecture-specific functions.
multi_index=1
for multilib in "${multilibs[@]}"; do
multi_flags=$( echo "${multilib#*;}" | ${sed} -r -e 's/@/ -/g;' )
multi_dir="${multilib%%;*}"
multi_os_dir=$( "${CT_TARGET}-${CT_CC}" -print-multi-os-directory ${multi_flags} )
multi_os_dir_gcc="${multi_os_dir}"
multi_root=$( "${CT_TARGET}-${CT_CC}" -print-sysroot ${multi_flags} )
multi_target=$( "${CT_TARGET}-${CT_CC}" -print-multiarch ${multi_flags} )
root_suffix="${multi_root#${CT_SYSROOT_DIR}}"
# If GCC did not report the target tuple (i.e. this configuration is not
# multiarch-capable), fall back to our guesswork.
if [ -z "${multi_target}" ]; then
multi_target="${CT_TARGET}"
CT_DoArchMultilibTarget multi_target ${multi_flags}
fi
# Avoid multi_os_dir if it's the only directory in this sysroot.
if [ -e "sysroot-check${root_suffix}/unique" ]; then
multi_os_dir=.
fi
# Brain-dead Cygwin hack: Cygwin cannot run a binary if there is a directory
# component in the path that ends with a dot. Unfortunately, that's the case
# for the default library name with GCC.
dir_postfix=_${multi_dir//\//_}
dir_postfix=${dir_postfix%_.}
CT_mkdir_pushd "${prefix}${dir_postfix}"
$func multi_dir="${multi_dir}" \
multi_os_dir="${multi_os_dir}" \
multi_os_dir_gcc="${multi_os_dir_gcc}" \
multi_flags="${multi_flags}" \
multi_root="${multi_root}" \
multi_target="${multi_target}" \
multi_index="${multi_index}" \
multi_count="${#multilibs[@]}" \
"$@"
CT_Popd
multi_index=$((multi_index+1))
done
}
# Create symbolic links in buildtools for binutils using a different
# target name.
# Usage:
# CT_SymlinkTools BIN-DIR SRC-DIR NEW-PREFIX SED-EXPR
CT_SymlinkTools()
{
local bindir="$1"
local srcdir="$2"
local newpfx="$3"
local sedexpr="$4"
local dirpfx
local t _t
# if bindir==srcdir, create symlinks just with the filename
if [ "${bindir}" != "${srcdir}" ]; then
dirpfx="${srcdir}/"
fi
CT_Pushd "${srcdir}"
for t in "${CT_TARGET}-"*; do
if [ "${t}" = "${CT_TARGET}-*" ]; then
# No matching files
break
fi
if [ -n "${newpfx}" -a \( "${newpfx}" != "${CT_TARGET}" -o "${bindir}" != "${srcdir}" \) ]; then
_t="${newpfx}-${t#${CT_TARGET}-}"
CT_DoExecLog ALL ln -sfv "${dirpfx}${t}" "${bindir}/${_t}"
fi
if [ -n "${sedexpr}" ]; then
_t=$( echo "${t}" | sed -r -e "${sedexpr}" )
if [ "${_t}" = "${t}" ]; then
CT_DoLog WARN "The sed expression '${sedexpr}' has no effect on '${t}'"
else
CT_DoExecLog ALL ln -sfv "${dirpfx}${t}" "${bindir}/${_t}"
fi
fi
done
CT_Popd
}
# Create symbolic links for multilib iterator. Expects ${multi_target}
# variable to indicate the desired triplet for the tools.
CT_SymlinkToolsMultilib()
{
# Make configure detect ${target}-tool binaries even if it is different
# from configured tuple. Only symlink to final tools if they're executable
# on build.
CT_SymlinkTools "${CT_BUILDTOOLS_PREFIX_DIR}/bin" \
"${CT_BUILDTOOLS_PREFIX_DIR}/bin" "${multi_target}"
case "${CT_TOOLCHAIN_TYPE}" in
native|cross)
CT_SymlinkTools "${CT_BUILDTOOLS_PREFIX_DIR}/bin" \
"${CT_PREFIX_DIR}/bin" "${multi_target}"
;;
esac
}
# Helper (iterator) for CT_MultilibFixupLDSO
CT__FixupLDSO()
{
local multi_dir multi_os_dir multi_root multi_flags multi_index multi_count multi_target
local binary
local ldso ldso_l ldso_f ldso_d ldso_u multilib_dir
for arg in "$@"; do
eval "${arg// /\\ }"
done
CT_DoLog EXTRA "Checking dynamic linker for multilib '${multi_flags}'"
multilib_dir="/lib/${multi_os_dir}"
CT_SanitizeVarDir multilib_dir
CT_DoExecLog ALL "${CT_TARGET}-${CT_CC}" -o test-ldso ../test-ldso.c ${multi_flags}
if [ -r "test-ldso.gdb" ]; then
binary="test-ldso.gdb"
else
binary="test-ldso"
fi
if ${CT_TARGET}-readelf -Wl "${binary}" | grep -q 'Requesting program interpreter: '; then
ldso=$( ${CT_TARGET}-readelf -Wl "${binary}" | \
grep 'Requesting program interpreter: ' | \
sed -e 's,.*: ,,' -e 's,\].*,,' )
fi
CT_DoLog DEBUG "Detected dynamic linker for multilib '${multi_flags}': '${ldso}'"
# Create symlink if GCC produced a dynamically linked executable.
if [ -z "${ldso}" ]; then
return # Probably, we're building a static toolchain.
fi
ldso_d="${ldso%/ld*.so.*}"
ldso_f="${ldso##*/}"
# Convert ldso_d to "how many levels we need to go up" and remove
# leading slash.
ldso_u=$( echo "${ldso_d#/}" | sed 's,[^/]\+,..,g' )
# If the requested dynamic linker exists, but is a symlink - check that it is either
# relative (in which case, if it is readable, we trust libc to have created it properly)
# or otherwise, convert it from absolute (target) path to a relative path that works on
# both host & target.
if [ -L "${multi_root}${ldso}" ]; then
ldso_l=`readlink "${multi_root}${ldso}"`
case "${ldso_l}" in
/*) # Absolute, convert to relative
if [ -r "${multi_root}${ldso_l}" ]; then
CT_DoExecLog ALL ln -sfv "${ldso_u}${ldso_l}" "${multi_root}${ldso}"
else
CT_DoLog WARN "Compiler selects '${ldso}' as dynamic linker for '${multi_flags}'"
CT_DoLog WARN "but '${ldso}' is a symlink to '${ldso_l}' which is not valid on target."
fi
;;
*) # Relative, must be readable
if [ ! -r "${multi_root}${ldso}" ]; then
CT_DoLog WARN "Compiler selects '${ldso}' as dynamic linker for '${multi_flags}'"
CT_DoLog WARN "but '${ldso}' is a symlink to '${ldso_l}' which is invalid relative symlink."
fi
;;
esac
return
elif [ -r "${multi_root}${ldso}" ]; then
return # Not a symlink but readable - looks like libc installed a real executable.
fi
# Is it requesting a linker not in the current directory? uClibc case.
if [ "${ldso_d}" != "${multilib_dir}" ]; then
CT_DoExecLog ALL ln -sfv "${ldso_u}${multilib_dir}/${ldso_f}" \
"${multi_root}${ldso}"
fi
}
# Go over multilib variants and check that the requested dynamic linker
# is present and resolves on both target and host.
CT_MultilibFixupLDSO()
{
CT_DoStep INFO "Checking dynamic linker symlinks"
CT_mkdir_pushd "${CT_BUILD_DIR}/build-libc-check-ldso"
echo "int main(void) { return 0; }" > test-ldso.c
CT_IterateMultilibs CT__FixupLDSO ldso_fixup
CT_Popd
CT_EndStep
}
Reference in New Issue View Git Blame Copy Permalink