tests: Introduce a basic testing framework

All tests should go into the new "tests" subdirectory. The idea is
that the separate Makefile in that directory will get invoked via
a top-level "make check".

The tests/Makefile should then take care of running all available
tests, returning an appropriate exit status. Future tests may be
functional, examine code metrics (coverage analysis), or both.

For a start, I'd simply like to check that sunxi-fexc is able to
properly compile all the .fex files from linux-sunxi/sunxi-boards.

(Note: This currently FAILS and will probably require adjustments
to both sunxi-tools and the .fex repository. To work around this,
for now I'm applying patches to fix sunxi-boards.)
Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>

Makefile

@@ -58,6 +58,7 @@ PREFIX  ?= /usr/local
 BINDIR  ?= $(PREFIX)/bin
 
 .PHONY: all clean tools target-tools install install-tools install-target-tools
+.PHONY: check
 
 tools: $(TOOLS) $(FEXC_LINKS)
 target-tools: $(TARGET_TOOLS)
@@ -94,6 +95,7 @@ install-misc: $(MISC_TOOLS)
 
 
 clean:
+	make -C tests/ clean
 	@rm -vf $(TOOLS) $(FEXC_LINKS) $(TARGET_TOOLS) $(MISC_TOOLS)
 	@rm -vf version.h *.o *.elf *.sunxi *.bin *.nm *.orig
 
@@ -186,3 +188,6 @@ version.h:
 	@for x in $(TOOLS) $(FEXC_LINKS) $(TARGET_TOOLS) version.h '*.o' '*.swp'; do \
 		echo "$$x"; \
 	done | sort -V > $@
+
+check: $(FEXC_LINKS)
+	make -C tests/

tests/Makefile

+#
+# tests/Makefile
+#
+
+BOARDS_URL := https://github.com/linux-sunxi/sunxi-boards/archive/master.zip
+BOARDS_DIR := sunxi-boards
+
+check: check_all_fex
+
+check_all_fex: $(BOARDS_DIR)/README
+	./test_all_fex.sh $(BOARDS_DIR)
+
+# Retrieve and extract sunxi-boards archive (containing all .fex)
+$(BOARDS_DIR).zip:
+	curl -fLsS -o $@ $(BOARDS_URL)
+$(BOARDS_DIR)/README: $(BOARDS_DIR).zip
+	@echo Extracting $< ...
+	unzip -q $<
+	mv sunxi-boards-master $(BOARDS_DIR)
+	touch -r $(BOARDS_DIR) $<
+	cat patches/*.patch | patch -p1
+
+clean:
+	rm -rf $(BOARDS_DIR).zip $(BOARDS_DIR)

tests/fextest.sh

+#!/bin/bash
+echo $0 $*
+FEX2BIN=../fex2bin
+BIN2FEX=../bin2fex
+FEX=$1
+BIN=${FEX/%.fex/.bin}
+REVERSE=${FEX/%.fex/.new}
+${FEX2BIN} ${FEX} ${BIN}

tests/patches/a-star_kv49l.patch

+See https://github.com/linux-sunxi/sunxi-boards/issues/51
+
+--- orig/sunxi-boards/sys_config/a33/a-star_kv49l.fex
++++ new/sunxi-boards/sys_config/a33/a-star_kv49l.fex
+@@ -830,25 +830,25 @@
+ 
+ [Vdevice]
+ Vdevice_used = 0
+-Vdevice_0 = port:P@00<0><0><0><0>
+-Vdevice_1 = port:P@00<0><0><0><0>
++;Vdevice_0 = port:P@00<0><0><0><0>
++;Vdevice_1 = port:P@00<0><0><0><0>
+ 
+ [s_uart0]
+ s_uart_used = 0
+-s_uart_tx = port:P@00<0><0><0><0>
+-s_uart_rx = port:P@00<0><0><0><0>
++;s_uart_tx = port:P@00<0><0><0><0>
++;s_uart_rx = port:P@00<0><0><0><0>
+ 
+ [s_rsb0]
+ s_rsb_used = 0
+-s_rsb_sck = port:P@00<0><0><0><0>
+-s_rsb_sda = port:P@00<0><0><0><0>
++;s_rsb_sck = port:P@00<0><0><0><0>
++;s_rsb_sda = port:P@00<0><0><0><0>
+ 
+ [s_jtag0]
+ s_jtag_used = 0
+-s_jtag_tms = port:P@00<0><0><0><0>
+-s_jtag_tck = port:P@00<0><0><0><0>
+-s_jtag_tdo = port:P@00<0><0><0><0>
+-s_jtag_tdi = port:P@00<0><0><0><0>
++;s_jtag_tms = port:P@00<0><0><0><0>
++;s_jtag_tck = port:P@00<0><0><0><0>
++;s_jtag_tdo = port:P@00<0><0><0><0>
++;s_jtag_tdi = port:P@00<0><0><0><0>
+ 
+ [s_powchk]
+ s_powchk_used = 0
+@@ -875,9 +875,9 @@
+ 
+ [leds_para]
+ leds_used = 0
+-；red_led = port:P@00<0><0><0><0>
+-；red_led_active_low = 0
+-；green_led_active_low = 0
+-；blue_led =
+-；blue_led_active_low = 0
++;red_led = port:P@00<0><0><0><0>
++;red_led_active_low = 0
++;green_led_active_low = 0
++;blue_led =
++;blue_led_active_low = 0
+ 

tests/test_all_fex.sh

+#!/bin/sh
+FEXFILES=fexfiles.lst
+find $1 -name '*.fex' > ${FEXFILES}
+while read fex; do
+	./fextest.sh ${fex} || exit
+done <${FEXFILES}
+rm -f ${FEXFILES}