Makefile.in: Add support for running glibc tests

Makefile.in has support for running the regression test suite of
Binutils, GCC and others. Let's add support for running glibc tests.

To run the tests the following command can be used:
  make check-glibc-linux

Tested with linux/rv64.

Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>

Makefile.in

@@ -141,6 +141,8 @@ check-gcc: check-gcc-@default_target@
 check-gcc-linux: stamps/check-gcc-linux
 check-gcc-newlib: stamps/check-gcc-newlib
 check-gcc-newlib-nano: stamps/check-gcc-newlib-nano
+.PHONY: check-glibc-linux
+check-glibc-linux: $(addprefix stamps/check-glibc-linux-,$(GLIBC_MULTILIB_NAMES))
 .PHONY: check-dhrystone check-dhrystone-linux check-dhrystone-newlib
 check-dhrystone: check-dhrystone-@default_target@
 .PHONY: check-binutils check-binutils-linux check-binutils-newlib
@@ -881,6 +883,13 @@ stamps/check-gcc-linux: stamps/build-gcc-linux-stage2 $(SIM_STAMP) stamps/build-
 	mkdir -p $(dir $@)
 	date > $@
 
+stamps/check-glibc-linux-%: $(addprefix stamps/build-glibc-linux-,$(GLIBC_MULTILIB_NAMES))
+	$(eval $@_BUILD_DIR := $(notdir $@))
+	$(eval $@_BUILD_DIR := $(subst check-,build-,$($@_BUILD_DIR)))
+	$(SIM_PREPARE) $(MAKE) -C $($@_BUILD_DIR) check
+	mkdir -p $(dir $@)
+	date > $@
+
 .PHONY: check-dhrystone-newlib check-dhrystone-newlib-nano
 check-dhrystone-newlib: $(patsubst %,stamps/check-dhrystone-newlib-%,$(NEWLIB_MULTILIB_NAMES))
 check-dhrystone-newlib-nano: $(patsubst %,stamps/check-dhrystone-newlib-nano-%,$(NEWLIB_MULTILIB_NAMES))