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https://github.com/crosstool-ng/crosstool-ng.git
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132 lines
5.4 KiB
Bash
132 lines
5.4 KiB
Bash
# This scripts calls each component's build script.
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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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# Parse all build files to have the needed functions.
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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/libc_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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# 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 system (read CT_BUILD)
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# tools to be accessible (ar is but an example). 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; do
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ln -s "`which ${tool}`" "${CT_PREFIX_DIR}/bin/${CT_BUILD}-${tool}"
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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="${CT_ARCH}";;
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esac
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# Build up the TARGET_CFLAGS from user-provided options
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tmp_target_CFLAGS=
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[ -n "${CT_ARCH_CPU}" ] && tmp_target_CFLAGS="${tmp_target_CFLAGS} -mcpu=${CT_ARCH_CPU}"
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[ -n "${CT_ARCH_TUNE}" ] && tmp_target_CFLAGS="${tmp_target_CFLAGS} -mtune=${CT_ARCH_TUNE}"
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[ -n "${CT_ARCH_ARCH}" ] && tmp_target_CFLAGS="${tmp_target_CFLAGS} -march=${CT_ARCH_ARCH}"
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[ -n "${CT_ARCH_FPU}" ] && tmp_target_CFLAGS="${tmp_target_CFLAGS} -mfpu=${CT_ARCH_FPU}"
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# Override with user-specified CFLAGS
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CT_TARGET_CFLAGS="${tmp_target_CFLAGS} ${CT_TARGET_CFLAGS}"
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# Help gcc
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CT_CFLAGS_FOR_HOST=
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[ "${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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# Now for the job by itself.
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# Check the C library config ASAP, before the user gets bored, and is
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# gone having his/her coffee
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do_libc_check_config
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do_kernel_check_config
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do_kernel_headers
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do_binutils
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do_libc_headers
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do_cc_core
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do_libfloat
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do_libc
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do_cc
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do_libc_finish
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