build system switch to cmake

Remove old build system at the same time

Change-Id: Ifdffe1fcd4cfece05f036d8de6e7cb74aca65f62

cmake/modules/Ksym.cmake

@@ -0,0 +1,43 @@
+# Lookup symbol addresses from Ksymbol file
+
+set(SYSTEM_MAP "${KERNEL_DIR}/System.map" CACHE STRING "System map to look for symbols")
+set(VMLINUX "${KERNEL_DIR}/vmlinux" CACHE STRING "kernel object file")
+
+
+function(ksym SYMBOL)
+	cmake_parse_arguments(KSYM "" "PREFIX;SOURCE_FILE;SUFFIX" "" ${ARGN})
+
+	execute_process(COMMAND awk "/ ${SYMBOL}$/ { print $1 }" ${SYSTEM_MAP}
+		OUTPUT_VARIABLE ADDRESS_CANDIDATES OUTPUT_STRIP_TRAILING_WHITESPACE)
+
+	if (NOT ADDRESS_CANDIDATES)
+		return()
+	endif()
+
+	# listify and get first element
+	string(REPLACE "\n" ";" ADDRESS_CANDIDATES "${ADDRESS_CANDIDATES}")
+	list(GET ADDRESS_CANDIDATES 0 ADDRESS)
+
+	if (SOURCE_FILE)
+		foreach(ADDRESS IN LISTS ADDRESS_CANDIDATES)
+			execute_process(COMMAND addr2line -e ${VMLINUX} ${ADDRESS}
+				OUTPUT_VARIABLE LINE OUTPUT_STRIP_TRAILING_WHITESPACE)
+			if(LINE MATCHES ".*${SOURCE_FILE}:.*")
+				set(FOUND ADDRESS)
+				break()
+			endif()
+		endforeach(ADDRESS)
+		if(NOT FOUND)
+			return()
+		endif()
+
+		# ?! why only if source_file?...
+		execute_process(COMMAND "awk '/ __ksymtab_${SYMBOL}$/ { print $1 }'"
+			OUTPUT_VARIABLE SYMBOL_EXPORTED OUTPUT_STRIP_TRAILING_WHITESPACE)
+		if (SYMBOL_EXPORTED)
+			set(ADDRESS 0)
+		endif(SYMBOL_EXPORTED)
+	endif(SOURCE_FILE)
+
+	set(${KSYM_PREFIX}KSYM_${SYMBOL}${KSYM_SUFFIX} "0x${ADDRESS}" CACHE INTERNAL "symbol")
+endfunction(ksym)