mirror of
https://github.com/crosstool-ng/crosstool-ng.git
synced 2024-12-19 12:57:53 +00:00
457 lines
18 KiB
Bash
Executable File
457 lines
18 KiB
Bash
Executable File
#!/bin/bash
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# Copyright 2007 Yann E. MORIN
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# Licensed under the GPL v2. See COPYING in the root of this package.
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# This is the main entry point to crosstool
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# This will:
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# - download, extract and patch the toolchain components
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# - build and install each components in turn
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# - and eventually test the resulting toolchain
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# What this file does is prepare the environment, based upon the user-choosen
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# options. It also checks the existing environment for un-friendly variables,
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# and builds the tools.
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# CT_TOP_DIR is set by the makefile. If we don't have it, something's gone horribly wrong...
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if [ -z "${CT_TOP_DIR}" -o ! -d "${CT_TOP_DIR}" ]; then
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# We don't have the functions right now, because we don't have CT_TOP_DIR.
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# Do the print stuff by hand:
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echo "CT_TOP_DIR not set, or not a directory. Something's gone horribly wrong."
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echo "Please send a bug report (see README)"
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exit 1
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fi
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# Parse the common functions
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. "${CT_TOP_DIR}/scripts/functions"
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CT_STAR_DATE=`CT_DoDate +%s%N`
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CT_STAR_DATE_HUMAN=`CT_DoDate +%Y%m%d.%H%M%S`
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# Log policy:
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# - first of all, save stdout so we can see the live logs: fd #6
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exec 6>&1
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# - then point stdout to the log file (temporary for now)
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tmp_log_file="${CT_TOP_DIR}/$$.log"
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exec >>"${tmp_log_file}"
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# Are we configured? We'll need that later...
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CT_TestOrAbort "Configuration file not found. Please create one." -f "${CT_TOP_DIR}/.config"
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# Parse the configuration file
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# It has some info about the logging facility, so include it early
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. "${CT_TOP_DIR}/.config"
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# renice oursleves
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renice ${CT_NICE} $$ |CT_DoLog DEBUG
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# Yes! We can do full logging from now on!
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CT_DoLog INFO "Build started ${CT_STAR_DATE_HUMAN}"
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CT_DoStep DEBUG "Dumping crosstool-NG configuration"
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cat ${CT_TOP_DIR}/.config |egrep '^(# |)CT_' |CT_DoLog DEBUG
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CT_EndStep
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# Some sanity checks in the environment and needed tools
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CT_DoLog INFO "Checking environment sanity"
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# First of really first of really all, **must not** move lower than here!
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if [ -n "${CT_RESTART}" -a -z "${CT_DEBUG_CT_SAVE_STEPS}" ]; then
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CT_DoLog ERROR "You asked to restart a non-restartable build"
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CT_DoLog ERROR "This happened because you didn't set CT_DEBUG_CT_SAVE_STEPS in the config options"
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CT_Abort "I will stop here to avoid any carnage"
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fi
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# Enable known ordering of files in directory listings:
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CT_Test "Crosstool-NG might not work as expected with LANG=\"${LANG}\"" -n "${LANG}"
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case "${LC_COLLATE},${LC_ALL}" in
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# These four combinations are known to sort files in the correct order:
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fr_FR*,) ;;
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en_US*,) ;;
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*,fr_FR*) ;;
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*,en_US*) ;;
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# Anything else is destined to be borked if not gracefuly handled:
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*) CT_DoLog WARN "Either LC_COLLATE=\"${LC_COLLATE}\" or LC_ALL=\"${LC_ALL}\" is not supported."
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export LC_ALL=`locale -a |egrep "^(fr_FR|en_US)" |head -n 1`
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CT_TestOrAbort "Neither en_US* nor fr_FR* locales found on your system." -n "${LC_ALL}"
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CT_DoLog WARN "Forcing to known working LC_ALL=\"${LC_ALL}\"."
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;;
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esac
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# Other environment sanity checks
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CT_TestAndAbort "Don't set LD_LIBRARY_PATH. It screws up the build." -n "${LD_LIBRARY_PATH}"
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CT_TestAndAbort "Don't set CFLAGS. It screws up the build." -n "${CFLAGS}"
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CT_TestAndAbort "Don't set CXXFLAGS. It screws up the build." -n "${CXXFLAGS}"
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CT_Test "GREP_OPTIONS screws up the build. Resetting." -n "${GREP_OPTIONS}"
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GREP_OPTIONS=
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CT_HasOrAbort awk
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CT_HasOrAbort sed
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CT_HasOrAbort bison
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CT_HasOrAbort flex
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CT_DoLog INFO "Building environment variables"
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# Target triplet: CT_TARGET needs a little love:
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CT_DoBuildTargetTriplet
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# Kludge: If any of the configured options needs CT_TARGET,
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# then rescan the options file now:
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. "${CT_TOP_DIR}/.config"
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# Now, build up the variables from the user-configured options.
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CT_KERNEL_FILE="${CT_KERNEL}-${CT_KERNEL_VERSION}"
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CT_BINUTILS_FILE="binutils-${CT_BINUTILS_VERSION}"
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if [ "${CT_CC_USE_CORE}" != "y" ]; then
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CT_CC_CORE="${CT_CC}"
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CT_CC_CORE_VERSION="${CT_CC_VERSION}"
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CT_CC_CORE_EXTRA_CONFIG="${CT_CC_EXTRA_CONFIG}"
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fi
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CT_CC_CORE_FILE="${CT_CC_CORE}-${CT_CC_CORE_VERSION}"
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CT_CC_FILE="${CT_CC}-${CT_CC_VERSION}"
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CT_LIBC_FILE="${CT_LIBC}-${CT_LIBC_VERSION}"
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CT_LIBFLOAT_FILE="libfloat-${CT_LIBFLOAT_VERSION}"
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# Where will we work?
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CT_TARBALLS_DIR="${CT_TOP_DIR}/targets/tarballs"
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CT_SRC_DIR="${CT_TOP_DIR}/targets/${CT_TARGET}/src"
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CT_BUILD_DIR="${CT_TOP_DIR}/targets/${CT_TARGET}/build"
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CT_DEBUG_INSTALL_DIR="${CT_INSTALL_DIR}/${CT_TARGET}/debug-root"
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# Note: we'll always install the core compiler in its own directory, so as to
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# not mix the two builds: core and final. Anyway, its generic, wether we use
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# a different compiler as core, or not.
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CT_CC_CORE_PREFIX_DIR="${CT_BUILD_DIR}/${CT_CC}-core"
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CT_STATE_DIR="${CT_TOP_DIR}/targets/${CT_TARGET}/state"
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# Make all path absolute, it so much easier!
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CT_LOCAL_TARBALLS_DIR="`CT_MakeAbsolutePath \"${CT_LOCAL_TARBALLS_DIR}\"`"
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# Some more sanity checks now that we have all paths set up
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case "${CT_TARBALLS_DIR},${CT_SRC_DIR},${CT_BUILD_DIR},${CT_PREFIX_DIR},${CT_INSTALL_DIR}" in
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*" "*) CT_Abort "Don't use spaces in paths, it breaks things.";;
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esac
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# Check now if we can write to the destination directory:
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if [ -d "${CT_INSTALL_DIR}" ]; then
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CT_TestAndAbort "Destination directory \"${CT_INSTALL_DIR}\" is not removable" ! -w `dirname "${CT_INSTALL_DIR}"`
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fi
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# Good, now grab a bit of informations on the system we're being run on,
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# just in case something goes awok, and it's not our fault:
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CT_SYS_USER="`id -un`"
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CT_SYS_HOSTNAME=`hostname -f 2>/dev/null || true`
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# Hmmm. Some non-DHCP-enabled machines do not have an FQDN... Fall back to node name.
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CT_SYS_HOSTNAME="${CT_SYS_HOSTNAME:-`uname -n`}"
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CT_SYS_KERNEL=`uname -s`
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CT_SYS_REVISION=`uname -r`
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# MacOS X lacks '-o' :
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CT_SYS_OS=`uname -o || echo "Unknown (maybe MacOS-X)"`
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CT_SYS_MACHINE=`uname -m`
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CT_SYS_PROCESSOR=`uname -p`
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CT_SYS_GCC=`gcc -dumpversion`
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CT_SYS_TARGET=`${CT_TOP_DIR}/tools/config.guess`
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CT_TOOLCHAIN_ID="crosstool-${CT_VERSION} build ${CT_STAR_DATE_HUMAN} by ${CT_SYS_USER}@${CT_SYS_HOSTNAME}"
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CT_DoLog EXTRA "Preparing working directories"
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# Ah! The build directory shall be eradicated, even if we restart!
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if [ -d "${CT_BUILD_DIR}" ]; then
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mv "${CT_BUILD_DIR}" "${CT_BUILD_DIR}.$$"
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chmod -R u+w "${CT_BUILD_DIR}.$$"
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nohup rm -rf "${CT_BUILD_DIR}.$$" >/dev/null 2>&1 &
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fi
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# Don't eradicate directories if we need to restart
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if [ -z "${CT_RESTART}" ]; then
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# Get rid of pre-existing installed toolchain and previous build directories.
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# We need to do that _before_ we can safely log, because the log file will
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# most probably be in the toolchain directory.
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if [ "${CT_FORCE_DOWNLOAD}" = "y" -a -d "${CT_TARBALLS_DIR}" ]; then
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mv "${CT_TARBALLS_DIR}" "${CT_TARBALLS_DIR}.$$"
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chmod -R u+w "${CT_TARBALLS_DIR}.$$"
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nohup rm -rf "${CT_TARBALLS_DIR}.$$" >/dev/null 2>&1 &
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fi
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if [ "${CT_FORCE_EXTRACT}" = "y" -a -d "${CT_SRC_DIR}" ]; then
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mv "${CT_SRC_DIR}" "${CT_SRC_DIR}.$$"
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chmod -R u+w "${CT_SRC_DIR}.$$"
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nohup rm -rf "${CT_SRC_DIR}.$$" >/dev/null 2>&1 &
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fi
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if [ -d "${CT_INSTALL_DIR}" ]; then
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mv "${CT_INSTALL_DIR}" "${CT_INSTALL_DIR}.$$"
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chmod -R u+w "${CT_INSTALL_DIR}.$$"
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nohup rm -rf "${CT_INSTALL_DIR}.$$" >/dev/null 2>&1 &
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fi
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if [ -d "${CT_DEBUG_INSTALL_DIR}" ]; then
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mv "${CT_DEBUG_INSTALL_DIR}" "${CT_DEBUG_INSTALL_DIR}.$$"
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chmod -R u+w "${CT_DEBUG_INSTALL_DIR}.$$"
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nohup rm -rf "${CT_DEBUG_INSTALL_DIR}.$$" >/dev/null 2>&1 &
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fi
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# In case we start anew, get rid of the previously saved state directory
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if [ -d "${CT_STATE_DIR}" ]; then
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mv "${CT_STATE_DIR}" "${CT_STATE_DIR}.$$"
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chmod -R u+w "${CT_STATE_DIR}.$$"
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nohup rm -rf "${CT_STATE_DIR}.$$" >/dev/null 2>&1 &
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fi
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fi
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# Create the directories we'll use, even if restarting: it does no harm to
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# create already existent directories, and CT_BUILD_DIR needs to be created
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# anyway
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mkdir -p "${CT_TARBALLS_DIR}"
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mkdir -p "${CT_SRC_DIR}"
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mkdir -p "${CT_BUILD_DIR}"
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mkdir -p "${CT_INSTALL_DIR}"
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mkdir -p "${CT_PREFIX_DIR}"
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mkdir -p "${CT_DEBUG_INSTALL_DIR}"
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mkdir -p "${CT_CC_CORE_PREFIX_DIR}"
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mkdir -p "${CT_STATE_DIR}"
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# Kludge: CT_INSTALL_DIR and CT_PREFIX_DIR might have grown read-only if
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# the previous build was successfull. To ba able to move the logfile there,
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# switch them back to read/write
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chmod -R u+w "${CT_INSTALL_DIR}" "${CT_PREFIX_DIR}"
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# Redirect log to the actual log file now we can
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# It's quite understandable that the log file will be installed in the install
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# directory, so we must first ensure it exists and is writeable (above) before
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# we can log there
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exec >/dev/null
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case "${CT_LOG_TO_FILE},${CT_LOG_FILE}" in
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,*) rm -f "${tmp_log_file}"
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;;
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y,/*) mkdir -p "`dirname \"${CT_LOG_FILE}\"`"
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cat "${tmp_log_file}" >>"${CT_LOG_FILE}"
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rm -f "${tmp_log_file}"
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exec >>"${CT_LOG_FILE}"
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;;
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y,*) mkdir -p "`pwd`/`dirname \"${CT_LOG_FILE}\"`"
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cat "${tmp_log_file}" >>"`pwd`/${CT_LOG_FILE}"
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rm -f "${tmp_log_file}"
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exec >>"${CT_LOG_FILE}"
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;;
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esac
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# Setting up the rest of the environment only is not restarting
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if [ -z "${CT_RESTART}" ]; then
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# Determine build system if not set by the user
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CT_Test "You did not specify the build system. That's OK, I can guess..." -z "${CT_BUILD}"
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CT_BUILD="`${CT_TOP_DIR}/tools/config.sub \"${CT_BUILD:-\`${CT_TOP_DIR}/tools/config.guess\`}\"`"
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# Arrange paths depending on wether we use sys-root or not.
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if [ "${CT_USE_SYSROOT}" = "y" ]; then
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CT_SYSROOT_DIR="${CT_PREFIX_DIR}/${CT_TARGET}/sys-root"
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CT_HEADERS_DIR="${CT_SYSROOT_DIR}/usr/include"
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BINUTILS_SYSROOT_ARG="--with-sysroot=${CT_SYSROOT_DIR}"
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CC_CORE_SYSROOT_ARG="--with-sysroot=${CT_SYSROOT_DIR}"
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CC_SYSROOT_ARG="--with-sysroot=${CT_SYSROOT_DIR}"
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LIBC_SYSROOT_ARG=""
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# glibc's prefix must be exactly /usr, else --with-sysroot'd gcc will get
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# confused when $sysroot/usr/include is not present.
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# Note: --prefix=/usr is magic!
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# See http://www.gnu.org/software/libc/FAQ.html#s-2.2
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else
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# plain old way. All libraries in prefix/target/lib
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CT_SYSROOT_DIR="${CT_PREFIX_DIR}/${CT_TARGET}"
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CT_HEADERS_DIR="${CT_SYSROOT_DIR}/include"
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# hack! Always use --with-sysroot for binutils.
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# binutils 2.14 and later obey it, older binutils ignore it.
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# Lets you build a working 32->64 bit cross gcc
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BINUTILS_SYSROOT_ARG="--with-sysroot=${CT_SYSROOT_DIR}"
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# Use --with-headers, else final gcc will define disable_glibc while
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# building libgcc, and you'll have no profiling
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CC_CORE_SYSROOT_ARG="--without-headers"
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CC_SYSROOT_ARG="--with-headers=${CT_HEADERS_DIR}"
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LIBC_SYSROOT_ARG="prefix="
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fi
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# Prepare the 'lib' directories in sysroot, else the ../lib64 hack used by
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# 32 -> 64 bit crosscompilers won't work, and build of final gcc will fail with
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# "ld: cannot open crti.o: No such file or directory"
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mkdir -p "${CT_SYSROOT_DIR}/lib"
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mkdir -p "${CT_SYSROOT_DIR}/usr/lib"
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# Canadian-cross are really picky on the way they are built. Tweak the values.
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if [ "${CT_CANADIAN}" = "y" ]; then
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# Arrange so that gcc never, ever think that build system == host system
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CT_CANADIAN_OPT="--build=`echo \"${CT_BUILD}\" |sed -r -e 's/-/-build_/'`"
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# We shall have a compiler for this target!
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# Do test here...
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else
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CT_HOST="${CT_BUILD}"
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CT_CANADIAN_OPT=
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# Add the target toolchain in the path so that we can build the C library
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export PATH="${CT_PREFIX_DIR}/bin:${CT_CC_CORE_PREFIX_DIR}/bin:${PATH}"
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fi
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# Modify GCC_HOST to never be equal to $BUILD or $TARGET
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# This strange operation causes gcc to always generate a cross-compiler
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# even if the build machine is the same kind as the host.
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# This is why CC has to be set when doing a canadian cross; you can't find a
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# host compiler by appending -gcc to our whacky $GCC_HOST
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# Kludge: it is reported that the above causes canadian crosses with cygwin
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# hosts to fail, so avoid it just in that one case. It would be cleaner to
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# just move this into the non-canadian case above, but I'm afraid that might
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# cause some configure script somewhere to decide that since build==host, they
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# could run host binaries.
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# (Copied almost as-is from original crosstool):
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case "${CT_KERNEL},${CT_CANADIAN}" in
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cygwin,y) ;;
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*) CT_HOST="`echo \"${CT_HOST}\" |sed -r -e 's/-/-host_/;'`";;
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esac
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# Ah! Recent versions of binutils need some of the build and/or host system
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# (read CT_BUILD and CT_HOST) tools to be accessible (ar is but an example).
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# Do that:
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CT_DoLog EXTRA "Making build system tools available"
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mkdir -p "${CT_PREFIX_DIR}/bin"
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for tool in ar as dlltool gcc g++ gnatbind gnatmake ld nm ranlib strip windres objcopy objdump; do
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if [ -n "`which ${tool}`" ]; then
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ln -sv "`which ${tool}`" "${CT_PREFIX_DIR}/bin/${CT_BUILD}-${tool}"
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case "${CT_TOOLCHAIN_TYPE}" in
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cross|native) ln -sv "`which ${tool}`" "${CT_PREFIX_DIR}/bin/${CT_HOST}-${tool}";;
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esac
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fi |CT_DoLog DEBUG
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done
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# Ha. cygwin host have an .exe suffix (extension) for executables.
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[ "${CT_KERNEL}" = "cygwin" ] && EXEEXT=".exe" || EXEEXT=""
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# Transform the ARCH into a kernel-understandable ARCH
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case "${CT_ARCH}" in
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x86) CT_KERNEL_ARCH=i386;;
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ppc) CT_KERNEL_ARCH=powerpc;;
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*) CT_KERNEL_ARCH="${CT_ARCH}";;
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esac
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# Build up the TARGET_CFLAGS from user-provided options
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# Override with user-specified CFLAGS
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[ -n "${CT_ARCH_CPU}" ] && CT_TARGET_CFLAGS="-mcpu=${CT_ARCH_CPU} ${CT_TARGET_CFLAGS}"
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[ -n "${CT_ARCH_TUNE}" ] && CT_TARGET_CFLAGS="-mtune=${CT_ARCH_TUNE} ${CT_TARGET_CFLAGS}"
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[ -n "${CT_ARCH_ARCH}" ] && CT_TARGET_CFLAGS="-march=${CT_ARCH_ARCH} ${CT_TARGET_CFLAGS}"
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[ -n "${CT_ARCH_FPU}" ] && CT_TARGET_CFLAGS="-mfpu=${CT_ARCH_FPU} ${CT_TARGET_CFLAGS}"
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# Help gcc
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CT_CFLAGS_FOR_HOST=
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[ "${CT_USE_PIPES}" = "y" ] && CT_CFLAGS_FOR_HOST="${CT_CFLAGS_FOR_HOST} -pipe"
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# And help make go faster
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PARALLELMFLAGS=
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[ ${CT_PARALLEL_JOBS} -ne 0 ] && PARALLELMFLAGS="${PARALLELMFLAGS} -j${CT_PARALLEL_JOBS}"
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[ ${CT_LOAD} -ne 0 ] && PARALLELMFLAGS="${PARALLELMFLAGS} -l${CT_LOAD}"
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CT_DoStep EXTRA "Dumping internal crosstool-NG configuration"
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CT_DoLog EXTRA "Building a toolchain for:"
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CT_DoLog EXTRA " build = ${CT_BUILD}"
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CT_DoLog EXTRA " host = ${CT_HOST}"
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CT_DoLog EXTRA " target = ${CT_TARGET}"
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set |egrep '^CT_.+=' |sort |CT_DoLog DEBUG
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CT_EndStep
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fi
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# Include sub-scripts instead of calling them: that way, we do not have to
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# export any variable, nor re-parse the configuration and functions files.
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. "${CT_TOP_DIR}/scripts/build/kernel_${CT_KERNEL}.sh"
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. "${CT_TOP_DIR}/scripts/build/binutils.sh"
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. "${CT_TOP_DIR}/scripts/build/libfloat.sh"
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. "${CT_TOP_DIR}/scripts/build/libc_${CT_LIBC}.sh"
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. "${CT_TOP_DIR}/scripts/build/cc_core_${CT_CC_CORE}.sh"
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. "${CT_TOP_DIR}/scripts/build/cc_${CT_CC}.sh"
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. "${CT_TOP_DIR}/scripts/build/debug.sh"
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if [ -z "${CT_RESTART}" ]; then
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CT_DoStep INFO "Retrieving needed toolchain components' tarballs"
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do_kernel_get
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do_binutils_get
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do_cc_core_get
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do_libfloat_get
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do_libc_get
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do_cc_get
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do_debug_get
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CT_EndStep
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if [ "${CT_ONLY_DOWNLOAD}" != "y" ]; then
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if [ "${CT_FORCE_EXTRACT}" = "y" ]; then
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mv "${CT_SRC_DIR}" "${CT_SRC_DIR}.$$"
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nohup rm -rf "${CT_SRC_DIR}.$$" >/dev/null 2>&1
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fi
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CT_DoStep INFO "Extracting and patching toolchain components"
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do_kernel_extract
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do_binutils_extract
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do_cc_core_extract
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do_libfloat_extract
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do_libc_extract
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do_cc_extract
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do_debug_extract
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CT_EndStep
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fi
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fi
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# Now for the job by itself. Go have a coffee!
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if [ "${CT_ONLY_DOWNLOAD}" != "y" -a "${CT_ONLY_EXTRACT}" != "y" ]; then
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# Because of CT_RESTART, this becomes quite complex
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[ -n "${CT_RESTART}" ] && do_it=0 || do_it=1
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for step in libc_check_config \
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|
kernel_check_config \
|
|
kernel_headers \
|
|
binutils \
|
|
libc_headers \
|
|
cc_core \
|
|
libfloat \
|
|
libc \
|
|
cc \
|
|
libc_finish \
|
|
debug \
|
|
; do
|
|
if [ ${do_it} -eq 0 ]; then
|
|
if [ "${CT_RESTART}" = "${step}" ]; then
|
|
CT_DoLoadState "${step}"
|
|
do_it=1
|
|
fi
|
|
else
|
|
CT_DoSaveState ${step}
|
|
fi
|
|
if [ ${do_it} -eq 1 ]; then
|
|
do_${step}
|
|
if [ "${CTDEBUG_CT_PAUSE_STEPS}" = "y" ]; then
|
|
CT_DoPause "Step \"${step}\" finished"
|
|
fi
|
|
fi
|
|
done
|
|
|
|
# Create the aliases to the target tools
|
|
if [ -n "${CT_TARGET_ALIAS}" ]; then
|
|
CT_DoLog EXTRA "Creating symlinks from \"${CT_TARGET}-*\" to \"${CT_TARGET_ALIAS}-*\""
|
|
CT_Pushd "${CT_PREFIX_DIR}/bin"
|
|
for t in "${CT_TARGET}-"*; do
|
|
_t="`echo \"$t\" |sed -r -e 's/^'\"${CT_TARGET}\"'-/'\"${CT_TARGET_ALIAS}\"'-/;'`"
|
|
CT_DoLog DEBUG "Linking \"${_t}\" -> \"${t}\""
|
|
ln -s "${t}" "${_t}"
|
|
done
|
|
CT_Popd
|
|
fi
|
|
|
|
# Remove the generated documentation files
|
|
if [ "${CT_REMOVE_DOCS}" = "y" ]; then
|
|
CT_DoLog INFO "Removing installed documentation"
|
|
rm -rf "${CT_PREFIX_DIR}/"{,usr/}{man,info}
|
|
rm -rf "${CT_SYSROOT_DIR}/"{,usr/}{man,info}
|
|
rm -rf "${CT_DEBUG_INSTALL_DIR}/"{,usr/}{man,info}
|
|
fi
|
|
|
|
CT_DoLog EXTRA "Removing access to the build system tools"
|
|
find "${CT_PREFIX_DIR}/bin" -name "${CT_BUILD}-"'*' -exec rm -fv {} \+ |CT_DoLog DEBUG
|
|
find "${CT_PREFIX_DIR}/bin" -name "${CT_HOST}-"'*' -exec rm -fv {} \+ |CT_DoLog DEBUG
|
|
fi
|
|
|
|
# OK, now we're done, set the toolchain read-only
|
|
# Don't log, the log file may become read-only any moment...
|
|
chmod -R a-w "${CT_INSTALL_DIR}"
|
|
|
|
# We still have some small bits to log
|
|
chmod u+w "${CT_LOG_FILE}"
|
|
|
|
CT_DoEnd INFO
|
|
|
|
# All files should now be read-only, log file included
|
|
chmod a-w "${CT_LOG_FILE}"
|
|
|
|
trap - EXIT
|