meson/gxl: Add tool to create bl31 bootable images
GXL platforms need to have a specific header at the beginning of bl31
image to be able to boot. This adds a tool to create that and calls it at
build time.
Signed-off-by: Remi Pommarel <repk@triplefau.lt>
diff --git a/tools/meson/Makefile b/tools/meson/Makefile
new file mode 100644
index 0000000..1a1d1f8
--- /dev/null
+++ b/tools/meson/Makefile
@@ -0,0 +1,49 @@
+#
+# Copyright (C) 2019 Remi Pommarel <repk@triplefau.lt>
+#
+# SPDX-License-Identifier: BSD-3-Clause
+# https://spdx.org/licenses
+#
+MAKE_HELPERS_DIRECTORY := ../../make_helpers/
+include ${MAKE_HELPERS_DIRECTORY}build_macros.mk
+include ${MAKE_HELPERS_DIRECTORY}build_env.mk
+
+PROJECT := doimage${BIN_EXT}
+OBJECTS := doimage.o
+V := 0
+
+HOSTCCFLAGS := -Wall -Werror -pedantic -std=c99 -D_GNU_SOURCE
+
+ifeq (${DEBUG},1)
+ HOSTCCFLAGS += -g -O0 -DDEBUG
+else
+ HOSTCCFLAGS += -O2
+endif
+
+ifeq (${V},0)
+ Q := @
+else
+ Q :=
+endif
+
+HOSTCC := gcc
+
+.PHONY: all clean distclean
+
+all: ${PROJECT}
+
+${PROJECT}: ${OBJECTS} Makefile
+ @echo " HOSTLD $@"
+ ${Q}${HOSTCC} ${OBJECTS} -o $@
+ @${ECHO_BLANK_LINE}
+ @echo "Built $@ successfully"
+ @${ECHO_BLANK_LINE}
+
+%.o: %.c Makefile
+ @echo " HOSTCC $<"
+ ${Q}${HOSTCC} -c ${HOSTCCFLAGS} $< -o $@
+
+clean:
+ $(call SHELL_DELETE_ALL, ${PROJECT} ${OBJECTS})
+
+distclean: clean