tests: Add new "real-life" test suit

The intention is to put here tests, that check how real apps
work. Initially I test that make -j4 works. This test is very
basic (uses sleep to wait for make to fork everybody) and a
syntetic .c file (quite big though).

Extend and use.
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

test/app-emu/make/Makefile

+all: foo1.o foo2.o foo3.o foo4.o
+	echo "Done"
+
+%.o: %.c
+	gcc -c $< -o $@
+
+foo%.c: tmpl.c
+	cp $< $@
+
+clean:
+	rm -f *.o

test/app-emu/make/run.sh

+#!/bin/bash
+
+crtools="../../../crtools"
+
+cleanup_wd() {
+	rm -f "ref-*"
+	make clean
+}
+
+set -x
+
+echo "Creating reference objects"
+
+cleanup_wd
+
+setsid make || exit 1
+
+for f in *.o; do
+	mv "$f" "ref-${f//.o/}";
+done
+
+rm -rf dump
+mkdir dump
+
+setsid make clean || exit 1
+setsid make -j4 &
+
+pid=${!}
+
+echo Lanuched make in $pid background
+sleep 2
+
+${crtools} dump -D dump -o dump.log -v 4  -t ${pid} || {
+	echo "Dump failed"
+	exit 1
+}
+
+echo "Dumped, restoring and waiting for completion"
+
+${crtools} restore -D dump -o restore.log -v 4 -t ${pid} || {
+	echo "Restore failed"
+	exit 1
+}
+
+for f in ref-*; do
+	if ! cmp "$f" "${f//ref-/}.o"; then
+		echo "$f mismatch"
+		echo "FAIL"
+		cleanup_wd
+		exit 1
+	fi
+done
+
+cleanup_wd
+
+echo PASS

test/app-emu/make/tmpl.c

+int foo(int a, int b)
+{
+#define A0(a, b) ((a)+(b))
+#define A1(a, b) ((a)>(b))?A0((a)-(b), (b)):A0((b)-(a), (a))
+#define A2(a, b) ((a)>(b))?A1((a)-(b), (b)):A1((b)-(a), (a))
+#define A3(a, b) ((a)>(b))?A2((a)-(b), (b)):A2((b)-(a), (a))
+#define A4(a, b) ((a)>(b))?A3((a)-(b), (b)):A3((b)-(a), (a))
+#define A5(a, b) ((a)>(b))?A4((a)-(b), (b)):A4((b)-(a), (a))
+#define A6(a, b) ((a)>(b))?A5((a)-(b), (b)):A5((b)-(a), (a))
+#define A7(a, b) ((a)>(b))?A6((a)-(b), (b)):A6((b)-(a), (a))
+#define A8(a, b) ((a)>(b))?A7((a)-(b), (b)):A7((b)-(a), (a))
+#define A9(a, b) ((a)>(b))?A8((a)-(b), (b)):A8((b)-(a), (a))
+#define A10(a, b) ((a)>(b))?A9((a)-(b), (b)):A9((b)-(a), (a))
+#define A11(a, b) ((a)>(b))?A10((a)-(b), (b)):A10((b)-(a), (a))
+	return A10(a, b);
+}