Add a string directory

The string directory is for optimized string functions, currently
it is just a skeleton with dummy code.

1 files changed, 51 insertions, 0 deletions

diff --git a/string/Dir.mk b/string/Dir.mk
new file mode 100644
index 0000000..e179642
--- /dev/null
+++ b/string/Dir.mk
@@ -0,0 +1,51 @@
+# Makefile fragment - requires GNU make
+#
+# Copyright (c) 2019, Arm Limited.
+# SPDX-License-Identifier: MIT
+
+string-lib-srcs := $(wildcard $(srcdir)/string/*.[cS])
+string-includes-src := $(wildcard $(srcdir)/string/include/*.h)
+string-includes := $(string-includes-src:$(srcdir)/string/%=build/%)
+string-test-srcs := $(wildcard $(srcdir)/string/test/*.c)
+
+string-libs := \
+	build/lib/libstringlib.so \
+	build/lib/libstringlib.a \
+
+string-tools := \
+	build/bin/test/memcpy \
+
+string-lib-base := $(basename $(string-lib-srcs))
+string-lib-objs := $(string-lib-base:$(srcdir)/%=build/%.o)
+string-test-base := $(basename $(string-test-srcs))
+string-test-objs := $(string-test-base:$(srcdir)/%=build/%.o)
+
+string-objs := \
+	$(string-lib-objs) \
+	$(string-test-objs) \
+
+all-string: $(string-libs) $(string-tools) $(string-includes)
+
+$(string-objs) $(string-objs:%.o=%.os): $(string-includes)
+
+build/lib/libstringlib.so: $(string-lib-objs:%.o=%.os)
+	$(CC) $(CFLAGS_ALL) $(LDFLAGS_ALL) -shared -o $@ $^
+
+build/lib/libstringlib.a: $(string-lib-objs)
+	rm -f $@
+	$(AR) rc $@ $^
+	$(RANLIB) $@
+
+build/bin/test/%: build/string/test/%.o build/lib/libstringlib.a
+	$(CC) $(CFLAGS_ALL) $(LDFLAGS_ALL) -static -o $@ $^ $(LDLIBS)
+
+build/include/%.h: $(srcdir)/string/include/%.h
+	cp $< $@
+
+build/bin/%.sh: $(srcdir)/string/test/%.sh
+	cp $< $@
+
+check-string: $(string-tools)
+	$(EMULATOR) build/bin/test/memcpy
+
+.PHONY: all-string check-string