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Diffstat (limited to 'scripts/buildToolchain.sh')
| -rw-r--r-- | scripts/buildToolchain.sh | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/scripts/buildToolchain.sh b/scripts/buildToolchain.sh new file mode 100644 index 0000000..dff1f6f --- /dev/null +++ b/scripts/buildToolchain.sh @@ -0,0 +1,123 @@ +# This scripts calls each component's build script. +# Copyright 2007 Yann E. MORIN +# Licensed under the GPL v2. See COPYING in the root of this package + +# Parse all build files to have the needed functions. +. "${CT_TOP_DIR}/scripts/build/kernel_${CT_KERNEL}.sh" +. "${CT_TOP_DIR}/scripts/build/binutils.sh" +. "${CT_TOP_DIR}/scripts/build/libc_libfloat.sh" +. "${CT_TOP_DIR}/scripts/build/libc_${CT_LIBC}.sh" +. "${CT_TOP_DIR}/scripts/build/cc_core_${CT_CC_CORE}.sh" +. "${CT_TOP_DIR}/scripts/build/cc_${CT_CC}.sh" + +# Arrange paths depending on wether we use sys-root or not. +if [ "${CT_USE_SYSROOT}" = "y" ]; then + CT_SYSROOT_DIR="${CT_PREFIX_DIR}/${CT_TARGET}/sys-root" + CT_HEADERS_DIR="${CT_SYSROOT_DIR}/usr/include" + BINUTILS_SYSROOT_ARG="--with-sysroot=${CT_SYSROOT_DIR}" + CC_CORE_SYSROOT_ARG="--with-sysroot=${CT_SYSROOT_DIR}" + CC_SYSROOT_ARG="--with-sysroot=${CT_SYSROOT_DIR}" + LIBC_SYSROOT_ARG="" + # glibc's prefix must be exactly /usr, else --with-sysroot'd gcc will get + # confused when $sysroot/usr/include is not present. + # Note: --prefix=/usr is magic! + # See http://www.gnu.org/software/libc/FAQ.html#s-2.2 +else + # plain old way. All libraries in prefix/target/lib + CT_SYSROOT_DIR="${CT_PREFIX_DIR}/${CT_TARGET}" + CT_HEADERS_DIR="${CT_SYSROOT_DIR}/include" + # hack! Always use --with-sysroot for binutils. + # binutils 2.14 and later obey it, older binutils ignore it. + # Lets you build a working 32->64 bit cross gcc + BINUTILS_SYSROOT_ARG="--with-sysroot=${CT_SYSROOT_DIR}" + # Use --with-headers, else final gcc will define disable_glibc while + # building libgcc, and you'll have no profiling + CC_CORE_SYSROOT_ARG="--without-headers" + CC_SYSROOT_ARG="--with-headers=${CT_HEADERS_DIR}" + LIBC_SYSROOT_ARG="prefix=" +fi + +# Prepare the 'lib' directories in sysroot, else the ../lib64 hack used by +# 32 -> 64 bit crosscompilers won't work, and build of final gcc will fail with +# "ld: cannot open crti.o: No such file or directory" +mkdir -p "${CT_SYSROOT_DIR}/lib" +mkdir -p "${CT_SYSROOT_DIR}/usr/lib" + +# Canadian-cross are really picky on the way they are built. Tweak the values. +if [ "${CT_CANADIAN}" = "y" ]; then + # Arrange so that gcc never, ever think that build system == host system + CT_CANADIAN_OPT="--build=`echo \"${CT_BUILD}\" |sed -r -e 's/-/-build_/'`" + # We shall have a compiler for this target! + # Do test here... +else + CT_HOST="${CT_BUILD}" + CT_CANADIAN_OPT= + # Add the target toolchain in the path so that we can build the C library + export PATH="${CT_PREFIX_DIR}/bin:${CT_CC_CORE_PREFIX_DIR}/bin:${PATH}" +fi + +# Modify GCC_HOST to never be equal to $BUILD or $TARGET +# This strange operation causes gcc to always generate a cross-compiler +# even if the build machine is the same kind as the host. +# This is why CC has to be set when doing a canadian cross; you can't find a +# host compiler by appending -gcc to our whacky $GCC_HOST +# Kludge: it is reported that the above causes canadian crosses with cygwin +# hosts to fail, so avoid it just in that one case. It would be cleaner to +# just move this into the non-canadian case above, but I'm afraid that might +# cause some configure script somewhere to decide that since build==host, they +# could run host binaries. +# (Copied almost as-is from original crosstool): +case "${CT_KERNEL},${CT_CANADIAN}" in + cygwin,y) ;; + *) CT_HOST="`echo \"${CT_HOST}\" |sed -r -e 's/-/-host_/;'`";; +esac + +# Ha. cygwin host have an .exe suffix (extension) for executables. +[ "${CT_KERNEL}" = "cygwin" ] && EXEEXT=".exe" || EXEEXT="" + +# Transform the ARCH into a kernel-understandable ARCH +case "${CT_ARCH}" in + x86) CT_KERNEL_ARCH=i386;; + ppc) CT_KERNL_ARCH=powerpc;; + *) CT_KERNEL_ARCH="${CT_ARCH}";; +esac + +# Build up the TARGET_CFLAGS from user-provided options +tmp_target_CFLAGS= +[ -n "${CT_ARCH_CPU}" ] && tmp_target_CFLAGS="${tmp_target_CFLAGS} -mcpu=${CT_ARCH_CPU}" +[ -n "${CT_ARCH_TUNE}" ] && tmp_target_CFLAGS="${tmp_target_CFLAGS} -mtune=${CT_ARCH_TUNE}" +[ -n "${CT_ARCH_ARCH}" ] && tmp_target_CFLAGS="${tmp_target_CFLAGS} -march=${CT_ARCH_ARCH}" +[ -n "${CT_ARCH_FPU}" ] && tmp_target_CFLAGS="${tmp_target_CFLAGS} -mfpu=${CT_ARCH_FPU}" +# Override with user-specified CFLAGS +CT_TARGET_CFLAGS="${tmp_target_CFLAGS} ${CT_TARGET_CFLAGS}" + +# Help gcc +CT_CFLAGS_FOR_HOST= +[ "${CT_USE_PIPES}" = "y" ] && CT_CFLAGS_FOR_HOST="${CT_CFLAGS_FOR_HOST} -pipe" + +# And help make go faster +PARALLELMFLAGS= +[ ${CT_PARALLEL_JOBS} -ne 0 ] && PARALLELMFLAGS="${PARALLELMFLAGS} -j${CT_PARALLEL_JOBS}" +[ ${CT_LOAD} -ne 0 ] && PARALLELMFLAGS="${PARALLELMFLAGS} -l${CT_LOAD}" + +CT_DoStep EXTRA "Dumping internal crosstool-NG configuration" +CT_DoLog EXTRA "Building a toolchain for :" +CT_DoLog EXTRA " build = ${CT_BUILD}" +CT_DoLog EXTRA " host = ${CT_HOST}" +CT_DoLog EXTRA " target = ${CT_TARGET}" +set |egrep '^CT_.+=' |sort |CT_DoLog DEBUG +CT_EndStep + +# Now for the job by itself. +# Check the C library config ASAP, before the user gets bored, and is +# gone having his/her coffee +do_libc_check_config +do_kernel_check_config +do_kernel_headers +do_binutils +do_libc_headers +do_cc_core +do_libfloat +do_libc +do_cc +do_libc_finish |