linux-kselftest-4.12-rc1

This update consists of:
 
 -- important fixes for build failures and clean target related warnings
    to address regressions introduced in:
    88baa78d1f ("selftests: remove duplicated all and clean target")
 
 -- several minor spelling fixes in and log messages and comment blocks.
 
 -- Enabling configs for better test coverage in ftrace, vm, cpufreq tests.
 -- .gitignore changes
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Merge tag 'linux-kselftest-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kselftest updates from Shuah Khan:
 "This update consists of:

   - important fixes for build failures and clean target related
     warnings to address regressions introduced in commit 88baa78d1f
     ("selftests: remove duplicated all and clean target")

   - several minor spelling fixes in and log messages and comment
     blocks.

   - Enabling configs for better test coverage in ftrace, vm, and
     cpufreq tests.

   - .gitignore changes"

* tag 'linux-kselftest-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (26 commits)
  selftests: x86: add missing executables to .gitignore
  selftests: watchdog: accept multiple params on command line
  selftests: create cpufreq kconfig fragments
  selftests: x86: override clean in lib.mk to fix warnings
  selftests: sync: override clean in lib.mk to fix warnings
  selftests: splice: override clean in lib.mk to fix warnings
  selftests: gpio: fix clean target to remove all generated files and dirs
  selftests: add gpio generated files to .gitignore
  selftests: powerpc: override clean in lib.mk to fix warnings
  selftests: gpio: override clean in lib.mk to fix warnings
  selftests: futex: override clean in lib.mk to fix warnings
  selftests: lib.mk: define CLEAN macro to allow Makefiles to override clean
  selftests: splice: fix clean target to not remove default_file_splice_read.sh
  selftests: gpio: add config fragment for gpio-mockup
  selftests: breakpoints: allow to cross-compile for aarch64/arm64
  selftests/Makefile: Add missed PHONY targets
  selftests/vm/run_vmtests: Fix wrong comment
  selftests/Makefile: Add missed closing `"` in comment
  selftests/vm/run_vmtests: Polish output text
  selftests/timers: fix spelling mistake: "Asynchronous"
  ...

tools/testing/selftests/.gitignore

@@ -1 +1,5 @@
 kselftest
+gpiogpio-event-mon
+gpiogpio-hammer
+gpioinclude/
+gpiolsgpio

tools/testing/selftests/Makefile

@@ -39,7 +39,7 @@ TARGETS += x86
 TARGETS += zram
 #Please keep the TARGETS list alphabetically sorted
 # Run "make quicktest=1 run_tests" or
-# "make quicktest=1 kselftest from top level Makefile
+# "make quicktest=1 kselftest" from top level Makefile
 
 TARGETS_HOTPLUG = cpu-hotplug
 TARGETS_HOTPLUG += memory-hotplug
@@ -133,4 +133,4 @@ clean:
 		make OUTPUT=$$BUILD_TARGET -C $$TARGET clean;\
 	done;
 
-.PHONY: install
+.PHONY: all run_tests hotplug run_hotplug clean_hotplug run_pstore_crash install clean

tools/testing/selftests/breakpoints/Makefile

@@ -5,7 +5,7 @@ ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/x86/ -e s/x86_64/x86/)
 ifeq ($(ARCH),x86)
 TEST_GEN_PROGS := breakpoint_test
 endif
-ifeq ($(ARCH),aarch64)
+ifneq (,$(filter $(ARCH),aarch64 arm64))
 TEST_GEN_PROGS := breakpoint_test_arm64
 endif
 

tools/testing/selftests/cpufreq/config

@@ -0,0 +1,15 @@
+CONFIG_CPU_FREQ=y
+CONFIG_CPU_FREQ_STAT=y
+CONFIG_CPU_FREQ_GOV_POWERSAVE=y
+CONFIG_CPU_FREQ_GOV_USERSPACE=y
+CONFIG_CPU_FREQ_GOV_ONDEMAND=y
+CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y
+CONFIG_CPU_FREQ_GOV_SCHEDUTIL=y
+CONFIG_DEBUG_RT_MUTEXES=y
+CONFIG_DEBUG_PI_LIST=y
+CONFIG_DEBUG_SPINLOCK=y
+CONFIG_DEBUG_MUTEXES=y
+CONFIG_DEBUG_LOCK_ALLOC=y
+CONFIG_PROVE_LOCKING=y
+CONFIG_LOCKDEP=y
+CONFIG_DEBUG_ATOMIC_SLEEP=y

tools/testing/selftests/ftrace/config

@@ -1 +1,2 @@
+CONFIG_KPROBES=y
 CONFIG_FTRACE=y

tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_type.tc

@@ -26,7 +26,7 @@ check_types() {
   test $X2 = $X3
   test 0x$X3 = $3
 
-  B4=`printf "%x" $4`
+  B4=`printf "%02x" $4`
   B3=`echo -n $X3 | tail -c 3 | head -c 2`
   test $B3 = $B4
 }

tools/testing/selftests/futex/Makefile

@@ -8,7 +8,7 @@ include ../lib.mk
 
 all:
 	for DIR in $(SUBDIRS); do		\
-		BUILD_TARGET=$$OUTPUT/$$DIR;	\
+		BUILD_TARGET=$(OUTPUT)/$$DIR;	\
 		mkdir $$BUILD_TARGET  -p;	\
 		make OUTPUT=$$BUILD_TARGET -C $$DIR $@;\
 	done
@@ -22,7 +22,7 @@ override define INSTALL_RULE
 	install -t $(INSTALL_PATH) $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES)
 
 	@for SUBDIR in $(SUBDIRS); do \
-		BUILD_TARGET=$$OUTPUT/$$SUBDIR;	\
+		BUILD_TARGET=$(OUTPUT)/$$SUBDIR;	\
 		mkdir $$BUILD_TARGET  -p;	\
 		$(MAKE) OUTPUT=$$BUILD_TARGET -C $$SUBDIR INSTALL_PATH=$(INSTALL_PATH)/$$SUBDIR install; \
 	done;
@@ -32,9 +32,10 @@ override define EMIT_TESTS
 	echo "./run.sh"
 endef
 
-clean:
+override define CLEAN
 	for DIR in $(SUBDIRS); do		\
-		BUILD_TARGET=$$OUTPUT/$$DIR;	\
+		BUILD_TARGET=$(OUTPUT)/$$DIR;	\
 		mkdir $$BUILD_TARGET  -p;	\
 		make OUTPUT=$$BUILD_TARGET -C $$DIR $@;\
 	done
+endef

tools/testing/selftests/gpio/Makefile

@@ -2,13 +2,20 @@
 TEST_PROGS := gpio-mockup.sh
 TEST_FILES := gpio-mockup-sysfs.sh $(BINARIES)
 BINARIES := gpio-mockup-chardev
+EXTRA_PROGS := ../gpiogpio-event-mon ../gpiogpio-hammer ../gpiolsgpio
+EXTRA_DIRS := ../gpioinclude/
+EXTRA_OBJS := ../gpiogpio-event-mon-in.o ../gpiogpio-event-mon.o
+EXTRA_OBJS += ../gpiogpio-hammer-in.o ../gpiogpio-utils.o ../gpiolsgpio-in.o
+EXTRA_OBJS += ../gpiolsgpio.o
 
 include ../lib.mk
 
 all: $(BINARIES)
 
-clean:
+override define CLEAN
-	$(RM) $(BINARIES)
+	$(RM) $(BINARIES) $(EXTRA_PROGS) $(EXTRA_OBJS)
+	$(RM) -r $(EXTRA_DIRS)
+endef
 
 CFLAGS += -O2 -g -std=gnu99 -Wall -I../../../../usr/include/
 LDLIBS += -lmount -I/usr/include/libmount

tools/testing/selftests/gpio/config

@@ -0,0 +1,2 @@
+CONFIG_GPIOLIB=y
+CONFIG_GPIO_MOCKUP=m

tools/testing/selftests/lib.mk

@@ -51,8 +51,12 @@ endef
 emit_tests:
 	$(EMIT_TESTS)
 
-clean:
+define CLEAN
 	$(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN)
+endef
+
+clean:
+	$(CLEAN)
 
 $(OUTPUT)/%:%.c
 	$(LINK.c) $^ $(LDLIBS) -o $@

tools/testing/selftests/lib/config

@@ -0,0 +1,3 @@
+CONFIG_TEST_PRINTF=m
+CONFIG_TEST_BITMAP=m
+CONFIG_PRIME_NUMBERS=m

tools/testing/selftests/powerpc/Makefile

@@ -60,12 +60,13 @@ override define EMIT_TESTS
 	done;
 endef
 
-clean:
+override define CLEAN
 	@for TARGET in $(SUB_DIRS); do \
 		BUILD_TARGET=$(OUTPUT)/$$TARGET;	\
 		$(MAKE) OUTPUT=$$BUILD_TARGET -C $$TARGET clean; \
 	done;
 	rm -f tags
+endef
 
 tags:
 	find . -name '*.c' -o -name '*.h' | xargs ctags

tools/testing/selftests/splice/Makefile

@@ -4,5 +4,4 @@ all: $(TEST_PROGS) $(EXTRA)
 
 include ../lib.mk
 
-clean:
+EXTRA_CLEAN := $(EXTRA)
-	rm -fr $(TEST_PROGS) $(EXTRA)

tools/testing/selftests/sync/Makefile

@@ -20,5 +20,4 @@ TESTS += sync_stress_merge.o
 
 sync_test: $(OBJS) $(TESTS)
 
-clean:
+EXTRA_CLEAN := sync_test $(OBJS) $(TESTS)
-	$(RM) sync_test $(OBJS) $(TESTS)

tools/testing/selftests/timers/clocksource-switch.c

@@ -159,7 +159,7 @@ int main(int argv, char **argc)
 	}
 
 
-	printf("Running Asyncrhonous Switching Tests...\n");
+	printf("Running Asynchronous Switching Tests...\n");
 	pid = fork();
 	if (!pid)
 		return run_tests(60);

tools/testing/selftests/vm/config

@@ -1 +1,2 @@
+CONFIG_SYSVIPC=y
 CONFIG_USERFAULTFD=y

tools/testing/selftests/vm/map_hugetlb.c

@@ -62,7 +62,7 @@ int main(void)
 	void *addr;
 	int ret;
 
-	addr = mmap(ADDR, LENGTH, PROTECTION, FLAGS, 0, 0);
+	addr = mmap(ADDR, LENGTH, PROTECTION, FLAGS, -1, 0);
 	if (addr == MAP_FAILED) {
 		perror("mmap");
 		exit(1);

tools/testing/selftests/vm/mlock2-tests.c

@@ -293,7 +293,7 @@ static int test_mlock_lock()
 	unsigned long page_size = getpagesize();
 
 	map = mmap(NULL, 2 * page_size, PROT_READ | PROT_WRITE,
-		   MAP_ANONYMOUS | MAP_PRIVATE, 0, 0);
+		   MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
 	if (map == MAP_FAILED) {
 		perror("test_mlock_locked mmap");
 		goto out;
@@ -402,7 +402,7 @@ static int test_mlock_onfault()
 	unsigned long page_size = getpagesize();
 
 	map = mmap(NULL, 2 * page_size, PROT_READ | PROT_WRITE,
-		   MAP_ANONYMOUS | MAP_PRIVATE, 0, 0);
+		   MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
 	if (map == MAP_FAILED) {
 		perror("test_mlock_locked mmap");
 		goto out;
@@ -445,7 +445,7 @@ static int test_lock_onfault_of_present()
 	uint64_t page1_flags, page2_flags;
 
 	map = mmap(NULL, 2 * page_size, PROT_READ | PROT_WRITE,
-		   MAP_ANONYMOUS | MAP_PRIVATE, 0, 0);
+		   MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
 	if (map == MAP_FAILED) {
 		perror("test_mlock_locked mmap");
 		goto out;
@@ -492,7 +492,7 @@ static int test_munlockall()
 	unsigned long page_size = getpagesize();
 
 	map = mmap(NULL, 2 * page_size, PROT_READ | PROT_WRITE,
-		   MAP_ANONYMOUS | MAP_PRIVATE, 0, 0);
+		   MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
 
 	if (map == MAP_FAILED) {
 		perror("test_munlockall mmap");
@@ -518,7 +518,7 @@ static int test_munlockall()
 	munmap(map, 2 * page_size);
 
 	map = mmap(NULL, 2 * page_size, PROT_READ | PROT_WRITE,
-		   MAP_ANONYMOUS | MAP_PRIVATE, 0, 0);
+		   MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
 
 	if (map == MAP_FAILED) {
 		perror("test_munlockall second mmap");
@@ -573,7 +573,7 @@ static int test_vma_management(bool call_mlock)
 	struct vm_boundaries page3;
 
 	map = mmap(NULL, 3 * page_size, PROT_READ | PROT_WRITE,
-		   MAP_ANONYMOUS | MAP_PRIVATE, 0, 0);
+		   MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
 	if (map == MAP_FAILED) {
 		perror("mmap()");
 		return ret;

tools/testing/selftests/vm/on-fault-limit.c

@@ -26,7 +26,7 @@ static int test_limit(void)
 	}
 
 	map = mmap(NULL, 2 * lims.rlim_max, PROT_READ | PROT_WRITE,
-		   MAP_PRIVATE | MAP_ANONYMOUS | MAP_POPULATE, 0, 0);
+		   MAP_PRIVATE | MAP_ANONYMOUS | MAP_POPULATE, -1, 0);
 	if (map != MAP_FAILED)
 		printf("mmap should have failed, but didn't\n");
 	else {

tools/testing/selftests/vm/run_vmtests

@@ -49,9 +49,9 @@ fi
 mkdir $mnt
 mount -t hugetlbfs none $mnt
 
-echo "--------------------"
+echo "---------------------"
 echo "running hugepage-mmap"
-echo "--------------------"
+echo "---------------------"
 ./hugepage-mmap
 if [ $? -ne 0 ]; then
 	echo "[FAIL]"
@@ -77,9 +77,9 @@ fi
 echo $shmmax > /proc/sys/kernel/shmmax
 echo $shmall > /proc/sys/kernel/shmall
 
-echo "--------------------"
+echo "-------------------"
 echo "running map_hugetlb"
-echo "--------------------"
+echo "-------------------"
 ./map_hugetlb
 if [ $? -ne 0 ]; then
 	echo "[FAIL]"
@@ -92,9 +92,9 @@ echo "NOTE: The above hugetlb tests provide minimal coverage.  Use"
 echo "      https://github.com/libhugetlbfs/libhugetlbfs.git for"
 echo "      hugetlb regression testing."
 
-echo "--------------------"
+echo "-------------------"
 echo "running userfaultfd"
-echo "--------------------"
+echo "-------------------"
 ./userfaultfd anon 128 32
 if [ $? -ne 0 ]; then
 	echo "[FAIL]"
@@ -103,10 +103,10 @@ else
 	echo "[PASS]"
 fi
 
-echo "----------------------------"
+echo "---------------------------"
 echo "running userfaultfd_hugetlb"
-echo "----------------------------"
+echo "---------------------------"
-# 258MB total huge pages == 128MB src and 128MB dst
+# 256MB total huge pages == 128MB src and 128MB dst
 ./userfaultfd hugetlb 128 32 $mnt/ufd_test_file
 if [ $? -ne 0 ]; then
 	echo "[FAIL]"
@@ -116,9 +116,9 @@ else
 fi
 rm -f $mnt/ufd_test_file
 
-echo "----------------------------"
+echo "-------------------------"
 echo "running userfaultfd_shmem"
-echo "----------------------------"
+echo "-------------------------"
 ./userfaultfd shmem 128 32
 if [ $? -ne 0 ]; then
 	echo "[FAIL]"
@@ -143,9 +143,9 @@ else
 	echo "[PASS]"
 fi
 
-echo "--------------------"
+echo "----------------------"
 echo "running on-fault-limit"
-echo "--------------------"
+echo "----------------------"
 sudo -u nobody ./on-fault-limit
 if [ $? -ne 0 ]; then
 	echo "[FAIL]"

tools/testing/selftests/vm/thuge-gen.c

@@ -146,7 +146,7 @@ void test_mmap(unsigned long size, unsigned flags)
 
 	before = read_free(size);
 	map = mmap(NULL, size*NUM_PAGES, PROT_READ|PROT_WRITE,
-			MAP_PRIVATE|MAP_ANONYMOUS|MAP_HUGETLB|flags, 0, 0);
+			MAP_PRIVATE|MAP_ANONYMOUS|MAP_HUGETLB|flags, -1, 0);
 
 	if (map == (char *)-1) err("mmap");
 	memset(map, 0xff, size*NUM_PAGES);

tools/testing/selftests/watchdog/watchdog-test.c

@@ -24,9 +24,11 @@ const char v = 'V';
 static void keep_alive(void)
 {
     int dummy;
+    int ret;
 
-    printf(".");
+    ret = ioctl(fd, WDIOC_KEEPALIVE, &dummy);
-    ioctl(fd, WDIOC_KEEPALIVE, &dummy);
+    if (!ret)
+        printf(".");
 }
 
 /*
@@ -51,6 +53,7 @@ int main(int argc, char *argv[])
     int flags;
     unsigned int ping_rate = 1;
     int ret;
+    int i;
 
     setbuf(stdout, NULL);
 
@@ -61,31 +64,35 @@ int main(int argc, char *argv[])
 	exit(-1);
     }
 
-    if (argc > 1) {
+    for (i = 1; i < argc; i++) {
-	if (!strncasecmp(argv[1], "-d", 2)) {
+        if (!strncasecmp(argv[i], "-d", 2)) {
-	    flags = WDIOS_DISABLECARD;
+            flags = WDIOS_DISABLECARD;
-	    ioctl(fd, WDIOC_SETOPTIONS, &flags);
+            ret = ioctl(fd, WDIOC_SETOPTIONS, &flags);
-	    printf("Watchdog card disabled.\n");
+            if (!ret)
-	    goto end;
+                printf("Watchdog card disabled.\n");
-	} else if (!strncasecmp(argv[1], "-e", 2)) {
+        } else if (!strncasecmp(argv[i], "-e", 2)) {
-	    flags = WDIOS_ENABLECARD;
+            flags = WDIOS_ENABLECARD;
-	    ioctl(fd, WDIOC_SETOPTIONS, &flags);
+            ret = ioctl(fd, WDIOC_SETOPTIONS, &flags);
-	    printf("Watchdog card enabled.\n");
+            if (!ret)
-	    goto end;
+                printf("Watchdog card enabled.\n");
-	} else if (!strncasecmp(argv[1], "-t", 2) && argv[2]) {
+        } else if (!strncasecmp(argv[i], "-t", 2) && argv[2]) {
-	    flags = atoi(argv[2]);
+            flags = atoi(argv[i + 1]);
-	    ioctl(fd, WDIOC_SETTIMEOUT, &flags);
+            ret = ioctl(fd, WDIOC_SETTIMEOUT, &flags);
-	    printf("Watchdog timeout set to %u seconds.\n", flags);
+            if (!ret)
-	    goto end;
+                printf("Watchdog timeout set to %u seconds.\n", flags);
-	} else if (!strncasecmp(argv[1], "-p", 2) && argv[2]) {
+            i++;
-	    ping_rate = strtoul(argv[2], NULL, 0);
+        } else if (!strncasecmp(argv[i], "-p", 2) && argv[2]) {
-	    printf("Watchdog ping rate set to %u seconds.\n", ping_rate);
+            ping_rate = strtoul(argv[i + 1], NULL, 0);
-	} else {
+            printf("Watchdog ping rate set to %u seconds.\n", ping_rate);
-	    printf("-d to disable, -e to enable, -t <n> to set " \
+            i++;
-		"the timeout,\n-p <n> to set the ping rate, and \n");
+        } else {
-	    printf("run by itself to tick the card.\n");
+            printf("-d to disable, -e to enable, -t <n> to set "
-	    goto end;
+                "the timeout,\n-p <n> to set the ping rate, and ");
-	}
+            printf("run by itself to tick the card.\n");
+            printf("Parameters are parsed left-to-right in real-time.\n");
+            printf("Example: %s -d -t 10 -p 5 -e\n", argv[0]);
+            goto end;
+        }
     }
 
     printf("Watchdog Ticking Away!\n");

tools/testing/selftests/x86/.gitignore

@@ -1,2 +1,15 @@
 *_32
 *_64
+single_step_syscall
+sysret_ss_attrs
+syscall_nt
+ptrace_syscall
+test_mremap_vdso
+check_initial_reg_state
+sigreturn
+ldt_gdt
+iopl
+mpx-mini-test
+ioperm
+protection_keys
+test_vdso

tools/testing/selftests/x86/Makefile

@@ -40,8 +40,7 @@ all_32: $(BINARIES_32)
 
 all_64: $(BINARIES_64)
 
-clean:
+EXTRA_CLEAN := $(BINARIES_32) $(BINARIES_64)
-	$(RM) $(BINARIES_32) $(BINARIES_64)
 
 $(BINARIES_32): $(OUTPUT)/%_32: %.c
 	$(CC) -m32 -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $^ -lrt -ldl -lm