Clean up the "make check*" and "make report*" targets

Fixes: https://github.com/riscv/riscv-gnu-toolchain/issues/286

Makefile.in

@@ -72,18 +72,42 @@ build-libc: build-newlib
 endif
 build-qemu: stamps/build-qemu
 
-.PHONY: check check-gcc check-dhrystone
-check: check-gcc
-check-gcc: stamps/check-gcc-@default_target@
+REGRESSION_TEST_LIST = gcc
+
+.PHONY: check
+check: check-@default_target@
+.PHONY: check-linux check-newlib
+check-linux: $(patsubst %,check-%-linux,$(REGRESSION_TEST_LIST))
+check-newlib: $(patsubst %,check-%-newlib,$(REGRESSION_TEST_LIST))
+.PHONY: check-gcc check-gcc-linux check-gcc-newlib
+check-gcc: check-gcc-@default_target@
+check-gcc-linux: stamps/check-gcc-linux
+check-gcc-newlib: stamps/check-gcc-newlib
+.PHONY: check-dhrystone check-dhrystone-linux check-dhrystone-newlib
 check-dhrystone: check-dhrystone-@default_target@
-check-binutils: stamps/check-binutils-@default_target@
-check-gdb: stamps/check-gdb-@default_target@
-
-.PHONY: report report-gcc
-report: report-gcc
+check-dhrystone-linux: stamps/check-dhrystone-linux
+check-dhrystone-newlib: stamps/check-dhrystone-newlib
+.PHONY: check-binutils check-binutils-linux check-binutils-newlib
+check-binutils: check-binutils-@default_target@
+check-binutils-linux: stamps/check-binutils-linux
+check-binutils-newlib: stamps/check-binutils-newlib
+.PHONY: check-gdb check-gdb-linux check-gdb-newlib
+check-gdb: check-gdb-@default_target@
+check-gdb-linux: stamps/check-gdb-linux
+check-gdb-newlib: stamps/check-gdb-newlib
+
+.PHONY: report
+report: report-@default_target@
+.PHONY: report-linux report-newlib
+report-linux: $(patsubst %,report-%-linux,$(REGRESSION_TEST_LIST))
+report-newlib: $(patsubst %,report-%-newlib,$(REGRESSION_TEST_LIST))
+.PHONY: report-gcc
 report-gcc: report-gcc-@default_target@
+.PHONY: report-dhrystone
 report-dhrystone: report-dhrystone-@default_target@
+.PHONY: report-binutils
 report-binutils: report-binutils-@default_target@
+.PHONY: report-gdb
 report-gdb: report-gdb-@default_target@
 
 $(addprefix src/original-,$(PACKAGES)):

README.md

@@ -104,9 +104,9 @@ To test GCC, run the following commands:
 
     ./configure --prefix=$RISCV --disable-linux --with-arch=rv64ima # or --with-arch=rv32ima
     make newlib
-    make check-gcc-newlib
+    make report-newlib
 
     ./configure --prefix=$RISCV
     make linux
     # Need qemu-riscv32 or qemu-riscv64 in your `PATH`.
-    make check-gcc-linux
+    make report-linux