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https://github.com/crosstool-ng/crosstool-ng.git
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6c6829a061
To build uClibc correctly we need correct endianness selected in the
crosstool-NG. Xtensa cores may be little- or big-endian, but this
property is static. The toolchain knows the core endianness and doesn't
need options to select it.
Enable ARCH_SUPPORTS_BOTH_ENDIAN and select LE by default. Specify empty
CT_ARCH_ENDIAN_CFLAG so that -m{big,little}-endian don't get added to
the TARGET_CFLAGS, as it's not supported by gcc. Specify empty
CT_ARCH_ENDIAN_LDFLAG so that -EB/-EL don't get added to the
TARGET_LDFLAGS as they are ignored. Select big-endian in the example
xtensa-unknown-linux-uclibc configuration.
This fixes uClibc toolchain build for little-endian cores.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
81 lines
2.8 KiB
Bash
81 lines
2.8 KiB
Bash
# Compute Xtensa-specific values
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CT_DoArchTupleValues() {
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# The architecture part of the tuple:
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CT_TARGET_ARCH="${CT_ARCH}${CT_ARCH_SUFFIX}"
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CT_ARCH_ENDIAN_CFLAG=""
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CT_ARCH_ENDIAN_LDFLAG=""
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# The system part of the tuple:
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case "${CT_LIBC}" in
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*glibc) CT_TARGET_SYS=gnu;;
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uClibc) CT_TARGET_SYS=uclibc;;
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esac
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}
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# This function updates the specified component (binutils, gcc, gdb, etc.)
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# with the processor specific configuration.
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CT_ConfigureXtensa() {
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local component="${1}"
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local version="${2}"
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local custom_overlay="xtensa_${CT_ARCH_XTENSA_CUSTOM_NAME}.tar"
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local custom_location="${CT_ARCH_XTENSA_CUSTOM_OVERLAY_LOCATION}"
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if [ -z "${CT_ARCH_XTENSA_CUSTOM_NAME}" ]; then
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custom_overlay="xtensa-overlay.tar"
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fi
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CT_TestAndAbort "${custom_overlay}: CT_ARCH_XTENSA_CUSTOM_OVERLAY_LOCATION must be set." -z "${custom_location}"
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local full_file="${custom_location}/${custom_overlay}"
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local basename="${component}-${version}"
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local ext
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ext=${full_file/*./.}
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if [ -z "${ext}" ] ; then
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CT_DoLog WARN "'${full_file}' not found"
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return 1
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fi
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if [ -e "${CT_SRC_DIR}/.${basename}.configuring" ]; then
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CT_DoLog ERROR "The '${basename}' source were partially configured."
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CT_DoLog ERROR "Please remove first:"
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CT_DoLog ERROR " - the source dir for '${basename}', in '${CT_SRC_DIR}'"
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CT_DoLog ERROR " - the file '${CT_SRC_DIR}/.${basename}.extracted'"
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CT_DoLog ERROR " - the file '${CT_SRC_DIR}/.${basename}.patch'"
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CT_DoLog ERROR " - the file '${CT_SRC_DIR}/.${basename}.configuring'"
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CT_Abort
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fi
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CT_DoLog EXTRA "Using '${custom_overlay}' from ${custom_location}"
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CT_DoExecLog DEBUG ln -sf "${custom_location}/${custom_overlay}" \
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"${CT_TARBALLS_DIR}/${custom_overlay}"
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CT_DoExecLog DEBUG touch "${CT_SRC_DIR}/.${basename}.configuring"
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CT_Pushd "${CT_SRC_DIR}/${basename}"
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tar_opts=( "--strip-components=1" )
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tar_opts+=( "-xv" )
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case "${ext}" in
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.tar) CT_DoExecLog FILE tar "${tar_opts[@]}" -f "${full_file}" "${component}";;
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.gz|.tgz) gzip -dc "${full_file}" | CT_DoExecLog FILE tar "${tar_opts[@]}" -f - "${component}";;
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.bz2) bzip2 -dc "${full_file}" | CT_DoExecLog FILE tar "${tar_opts[@]}" -f - "${component}";;
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*) CT_DoLog WARN "Don't know how to handle '${basename}${ext}': unknown extension"
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return 1
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;;
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esac
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CT_DoExecLog DEBUG touch "${CT_SRC_DIR}/.${basename}.configured"
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CT_DoExecLog DEBUG rm -f "${CT_SRC_DIR}/.${basename}.configuring"
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CT_Popd
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}
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CT_DoArchUClibcConfig() {
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local cfg="${1}"
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CT_DoArchUClibcSelectArch "${cfg}" "xtensa"
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}
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