toolchain: espressif: mark newlib support false

newlib is not supported with this toolchain, so mark it as such and
filter tests based on the variable defined in the toolchain file.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>

cmake/toolchain/espressif/generic.cmake

@@ -12,3 +12,5 @@ set(SYSROOT_TARGET       xtensa-esp32-elf)
 set(CROSS_COMPILE ${TOOLCHAIN_HOME}/bin/${CROSS_COMPILE_TARGET}-)
 set(SYSROOT_DIR   ${TOOLCHAIN_HOME}/${SYSROOT_TARGET})
 
+set(TOOLCHAIN_HAS_NEWLIB ON CACHE BOOL "True if toolchain supports newlib")
+

cmake/toolchain/gnuarmemb/generic.cmake

@@ -23,3 +23,4 @@ set(SYSROOT_TARGET       arm-none-eabi)
 
 set(CROSS_COMPILE ${TOOLCHAIN_HOME}/bin/${CROSS_COMPILE_TARGET}-)
 set(SYSROOT_DIR   ${TOOLCHAIN_HOME}/${SYSROOT_TARGET})
+set(TOOLCHAIN_HAS_NEWLIB ON CACHE BOOL "True if toolchain supports newlib")

cmake/toolchain/issm/generic.cmake

@@ -37,5 +37,6 @@ set(TOOLCHAIN_HOME ${ISSM_INSTALLATION_PATH}/tools/compiler/${specific_version})
 set(CROSS_COMPILE ${TOOLCHAIN_HOME}/bin/${CROSS_COMPILE_TARGET}-)
 set(SYSROOT_DIR   ${TOOLCHAIN_HOME}/${SYSROOT_TARGET})
 
+set(TOOLCHAIN_HAS_NEWLIB ON CACHE BOOL "True if toolchain supports newlib")
 
 # TODO: What was _version used for?

cmake/toolchain/xcc/generic.cmake

@@ -23,3 +23,5 @@ list(APPEND TOOLCHAIN_C_FLAGS -fms-extensions)
 list(APPEND TOOLCHAIN_C_FLAGS
   -D__SIZEOF_LONG__=4
   )
+
+set(TOOLCHAIN_HAS_NEWLIB OFF CACHE BOOL "True if toolchain supports newlib")

cmake/toolchain/xtools/generic.cmake

@@ -21,3 +21,4 @@ set(SYSROOT_TARGET ${CROSS_COMPILE_TARGET})
 
 set(CROSS_COMPILE ${TOOLCHAIN_HOME}/${CROSS_COMPILE_TARGET}/bin/${CROSS_COMPILE_TARGET}-)
 set(SYSROOT_DIR   ${TOOLCHAIN_HOME}/${SYSROOT_TARGET}/${SYSROOT_TARGET})
+set(TOOLCHAIN_HAS_NEWLIB ON CACHE BOOL "True if toolchain supports newlib")

cmake/toolchain/zephyr/0.10.0/generic.cmake

@@ -7,3 +7,4 @@ set(SYSROOT_TARGET       i586-${TOOLCHAIN_VENDOR}-elf)
 
 set(CROSS_COMPILE ${TOOLCHAIN_HOME}/${CROSS_COMPILE_TARGET}/bin/${CROSS_COMPILE_TARGET}-)
 set(SYSROOT_DIR ${ZEPHYR_SDK_INSTALL_DIR}/sysroots/${SYSROOT_TARGET}/usr)
+set(TOOLCHAIN_HAS_NEWLIB ON CACHE BOOL "True if toolchain supports newlib")