xtensa: fix toolchain and add overlays/hal

Installs hal library as part of the toolchain. Currently only supports
newlib 2.2.

Signed-off-by: Anas Nashif <[email protected]>
Signed-off-by: Kumar Gala <[email protected]>
Signed-off-by: Anas Nashif <[email protected]>

Author: nashif

.shippable.yml

@@ -13,6 +13,7 @@ env:
         - TARGET=riscv32
         - TARGET=mips
         - TARGET=arc
+        - TARGET=xtensa
 
 build:
     cache: true

configs/xtensa.config

@@ -8,8 +8,12 @@ CT_LOCAL_PATCH_DIR="${CT_TOP_DIR}/../../patches"
 CT_ARCH_XTENSA=y
 CT_XTENSA_CUSTOM=y
 CT_ARCH_LE_BE=y
+CT_OVERLAY_NAME="sample_controller"
+CT_OVERLAY_LOCATION="./overlays"
 CT_TARGET_VENDOR="zephyr"
-CT_NEWLIB_V_2_5_0=y
+CT_NEWLIB_SRC_DEVEL=y
+CT_NEWLIB_DEVEL_URL="https://github.com/jcmvbkbc/newlib-xtensa.git"
+CT_NEWLIB_DEVEL_BRANCH="xtensa"
 CT_LIBC_NEWLIB_IO_FLOAT=y
 # CT_LIBC_NEWLIB_FSEEK_OPTIMIZATION is not set
 CT_LIBC_NEWLIB_DISABLE_SUPPLIED_SYSCALLS=y

go.sh

@@ -74,12 +74,30 @@ for t in ${TARGETS}; do
 	mkdir -p build_${t}
 	pushd build_${t}
 
-	${CT_NG} clean
-	${CT_NG} defconfig DEFCONFIG=${GITDIR}/configs/${t}.config
-	${CT_NG} savedefconfig DEFCONFIG=${t}.config
-	${CT_NG} build -j ${JOBS}
-	rm -rf  build_${t}
+	build_toolchain=1
+	if [ -n "${build_toolchain}" ]; then
+		cp -a ${SDK_NG_HOME}/overlays .
+
+		${CT_NG} clean
+		${CT_NG} defconfig DEFCONFIG=${GITDIR}/configs/${t}.config
+		${CT_NG} savedefconfig DEFCONFIG=${t}.config
+		${CT_NG} build -j ${JOBS}
+	fi
+
+	if [ "${t}" = "xtensa" ]; then
+		wget https://github.com/foss-xtensa/xtensa-hal/archive/RF-2015.2.tar.gz
+		tar xf RF-2015.2.tar.gz
+		cd xtensa-hal-RF-2015.2
+		wget https://github.com/foss-xtensa/xtensa-config/releases/download/201702/sample_controller_linux.tgz
+		./import-core.sh sample_controller_linux.tgz
+		export CC=${CT_PREFIX}/xtensa-zephyr-elf/bin/xtensa-zephyr-elf-gcc
+		./configure --host xtensa-zephyr-elf --prefix ${CT_PREFIX}/xtensa-zephyr-elf
+		make
+		make install
+		unset CC
+	fi
 
 	popd
+	rm -rf  build_${t}
 
 done

overlays/README

@@ -0,0 +1,13 @@
+
+xtensa_sample_controller.tar.gz
+-------------------------------
+
+Generated using the following sequence of commands:
+
+$ git clone git://github.com/foss-xtensa/xtensa-config.git
+$ cd xtensa-config
+$ wget https://github.com/foss-xtensa/xtensa-config/releases/download/201702/sample_controller_linux.tgz
+$ tar -xf sample_controller_linux.tgz `tar -tf sample_controller_linux.tgz | grep xtensa-config-overlay.tar.gz` -O > xtensa-config-overlay.tar.gz
+$ ./make-overlay.sh sample_controller xtensa-config-overlay.tar.gz .
+
+

overlays/xtensa_sample_controller.tar.gz

@@ -0,0 +1,23 @@
+
+Fix unresolved external "fiprintf".
+When newlib is configured with:
+
+  --enable-newlib-nano-formatted-io
+
+"fiprintf" should be an alias of "fprintf". However the alias does 
+not seem to work properly, as we encounter unresolved external
+error if we uses "assert" in code. So we patch the code directly.
+
+Signed-off-by: Juro Bystricky <[email protected]>
+
+--- a/newlib/libc/stdlib/assert.c	2016-11-08 08:04:45.669248139 -0800
++++ b/newlib/libc/stdlib/assert.c	2016-11-08 08:05:47.357554034 -0800
+@@ -56,7 +56,7 @@
+ 	const char *func _AND
+ 	const char *failedexpr)
+ {
+-  fiprintf(stderr,
++  fprintf(stderr,
+ 	   "assertion \"%s\" failed: file \"%s\", line %d%s%s\n",
+ 	   failedexpr, file, line,
+ 	   func ? ", function: " : "", func ? func : "");