Merge pull request #253 from jcmvbkbc/xtensa-for-mainline-20151113

Add support for Xtensa architecture

5 files changed, 99 insertions, 0 deletions

diff --git a/scripts/build/arch/xtensa.sh b/scripts/build/arch/xtensa.sh
new file mode 100644
index 00000000..7e493127
--- /dev/null
+++ b/scripts/build/arch/xtensa.sh
@@ -0,0 +1,78 @@
+# Compute Xtensa-specific values
+
+CT_DoArchTupleValues() {
+    # The architecture part of the tuple:
+    CT_TARGET_ARCH="${CT_ARCH}${CT_ARCH_SUFFIX}"
+    # The system part of the tuple:
+    case "${CT_LIBC}" in
+        *glibc)   CT_TARGET_SYS=gnu;;
+        uClibc)   CT_TARGET_SYS=uclibc;;
+    esac
+}
+
+# This function updates the specified component (binutils, gcc, gdb, etc.)
+# with the processor specific configuration.
+CT_ConfigureXtensa() {
+    local component="${1}"
+    local version="${2}"
+    local custom_overlay="xtensa_${CT_ARCH_XTENSA_CUSTOM_NAME}.tar"
+    local custom_location="${CT_ARCH_XTENSA_CUSTOM_OVERLAY_LOCATION}"
+
+    if [ -z "${CT_ARCH_XTENSA_CUSTOM_NAME}" ]; then
+        custom_overlay="xtensa-overlay.tar"
+    fi
+
+    if [ -n "${CT_CUSTOM_LOCATION_ROOT_DIR}" \
+         -a -z "${custom_location}" ]; then
+             custom_location="${CT_CUSTOM_LOCATION_ROOT_DIR}"
+    fi
+
+    CT_TestAndAbort "${custom_overlay}: CT_CUSTOM_LOCATION_ROOT_DIR or CT_ARCH_XTENSA_CUSTOM_OVERLAY_LOCATION must be set." \
+        -z "${CT_CUSTOM_LOCATION_ROOT_DIR}" -a -z "${custom_location}"
+
+    local full_file="${custom_location}/${custom_overlay}"
+    local basename="${component}-${version}"
+    local ext
+
+    ext=${full_file/*./.}
+
+    if [ -z "${ext}" ] ; then
+        CT_DoLog WARN "'${full_file}' not found"
+        return 1
+    fi
+
+    if [ -e "${CT_SRC_DIR}/.${basename}.configuring" ]; then
+        CT_DoLog ERROR "The '${basename}' source were partially configured."
+        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}.extracted'"
+        CT_DoLog ERROR " - the file '${CT_SRC_DIR}/.${basename}.patch'"
+        CT_DoLog ERROR " - the file '${CT_SRC_DIR}/.${basename}.configuring'"
+        CT_Abort
+    fi
+
+    CT_DoLog EXTRA "Using '${custom_overlay}' from ${custom_location}"
+    CT_DoExecLog DEBUG ln -sf "${custom_location}/${custom_overlay}" \
+                              "${CT_TARBALLS_DIR}/${custom_overlay}"
+
+    CT_DoExecLog DEBUG touch "${CT_SRC_DIR}/.${basename}.configuring"
+
+    CT_Pushd "${CT_SRC_DIR}/${basename}"
+
+    tar_opts=( "--strip-components=1" )
+    tar_opts+=( "-xv" )
+
+    case "${ext}" in
+        .tar)           CT_DoExecLog FILE tar "${tar_opts[@]}" -f "${full_file}" "${component}";;
+        .gz|.tgz)       gzip -dc "${full_file}" | CT_DoExecLog FILE tar "${tar_opts[@]}" -f - "${component}";;
+        .bz2)           bzip2 -dc "${full_file}" | CT_DoExecLog FILE tar "${tar_opts[@]}" -f - "${component}";;
+        *)              CT_DoLog WARN "Don't know how to handle '${basename}${ext}': unknown extension"
+                        return 1
+                        ;;
+    esac
+
+    CT_DoExecLog DEBUG touch "${CT_SRC_DIR}/.${basename}.configured"
+    CT_DoExecLog DEBUG rm -f "${CT_SRC_DIR}/.${basename}.configuring"
+
+    CT_Popd
+}
diff --git a/scripts/build/binutils/binutils.sh b/scripts/build/binutils/binutils.sh
index a23b94a0..dcaf37da 100644
--- a/scripts/build/binutils/binutils.sh
+++ b/scripts/build/binutils/binutils.sh
@@ -46,6 +46,10 @@ do_binutils_extract() {
             CT_Patch "elf2flt" "${CT_ELF2FLT_GIT_CSET}"
         fi
     fi
+
+    if [ -n "${CT_ARCH_XTENSA_CUSTOM_NAME}" ]; then
+        CT_ConfigureXtensa "binutils" "${CT_BINUTILS_VERSION}"
+    fi
 }
 
 # Build binutils for build -> target
diff --git a/scripts/build/cc/100-gcc.sh b/scripts/build/cc/100-gcc.sh
index 6515f96c..2e824d98 100644
--- a/scripts/build/cc/100-gcc.sh
+++ b/scripts/build/cc/100-gcc.sh
@@ -63,6 +63,10 @@ do_gcc_extract() {
        ]; then
         CT_DoExecLog ALL cp -v "${CT_TARBALLS_DIR}/ecj-latest.jar" "${CT_SRC_DIR}/gcc-${CT_CC_GCC_VERSION}/ecj.jar"
     fi
+
+    if [ -n "${CT_ARCH_XTENSA_CUSTOM_NAME}" ]; then
+        CT_ConfigureXtensa "gcc" "${CT_CC_GCC_VERSION}"
+    fi
 }
 
 #------------------------------------------------------------------------------
diff --git a/scripts/build/debug/300-gdb.sh b/scripts/build/debug/300-gdb.sh
index 93086b97..984aea31 100644
--- a/scripts/build/debug/300-gdb.sh
+++ b/scripts/build/debug/300-gdb.sh
@@ -100,6 +100,10 @@ do_debug_gdb_extract() {
         CT_Extract "expat-${CT_DEBUG_GDB_EXPAT_VERSION}"
         CT_Patch "expat" "${CT_DEBUG_GDB_EXPAT_VERSION}"
     fi
+
+    if [ -n "${CT_ARCH_XTENSA_CUSTOM_NAME}" ]; then
+        CT_ConfigureXtensa "gdb" "${CT_GDB_VERSION}"
+    fi
 }
 
 do_debug_gdb_build() {
diff --git a/scripts/build/libc/newlib.sh b/scripts/build/libc/newlib.sh
index ba3d9699..4c395d0d 100644
--- a/scripts/build/libc/newlib.sh
+++ b/scripts/build/libc/newlib.sh
@@ -38,6 +38,10 @@ do_libc_extract() {
 
     CT_Extract "newlib-${CT_LIBC_VERSION}"
     CT_Patch "newlib" "${CT_LIBC_VERSION}"
+
+    if [ -n "${CT_ARCH_XTENSA_CUSTOM_NAME}" ]; then
+        CT_ConfigureXtensa "newlib" "${CT_LIBC_VERSION}"
+    fi
 }
 
 do_libc_check_config() {
@@ -48,6 +52,11 @@ do_libc_start_files() {
     CT_DoStep INFO "Installing C library headers & start files"
     CT_DoExecLog ALL cp -a "${CT_SRC_DIR}/newlib-${CT_LIBC_VERSION}/newlib/libc/include/." \
     "${CT_HEADERS_DIR}"
+    if [ "${CT_ARCH_xtensa}" = "y" ]; then
+        CT_DoLog EXTRA "Installing Xtensa headers"
+        CT_DoExecLog ALL cp -r "${CT_SRC_DIR}/newlib-${CT_LIBC_VERSION}/newlib/libc/sys/xtensa/include/."   \
+                               "${CT_HEADERS_DIR}"
+    fi
     CT_EndStep
 }