* RTC_PIE_ON, RTC_PIE_OFF: These are also emulated by the generic code.
-If all else fails, check out the rtc-test.c driver!
-
-
--------------------- 8< ---------------- 8< -----------------------------
-
-/*
- * Real Time Clock Driver Test/Example Program
- *
- * Compile with:
- * gcc -s -Wall -Wstrict-prototypes rtctest.c -o rtctest
- *
- * Copyright (C) 1996, Paul Gortmaker.
- *
- * Released under the GNU General Public License, version 2,
- * included herein by reference.
- *
- */
-
-#include <stdio.h>
-#include <linux/rtc.h>
-#include <sys/ioctl.h>
-#include <sys/time.h>
-#include <sys/types.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <errno.h>
-
-
-/*
- * This expects the new RTC class driver framework, working with
- * clocks that will often not be clones of what the PC-AT had.
- * Use the command line to specify another RTC if you need one.
- */
-static const char default_rtc[] = "/dev/rtc0";
-
-
-int main(int argc, char **argv)
-{
- int i, fd, retval, irqcount = 0;
- unsigned long tmp, data;
- struct rtc_time rtc_tm;
- const char *rtc = default_rtc;
-
- switch (argc) {
- case 2:
- rtc = argv[1];
- /* FALLTHROUGH */
- case 1:
- break;
- default:
- fprintf(stderr, "usage: rtctest [rtcdev]\n");
- return 1;
- }
-
- fd = open(rtc, O_RDONLY);
-
- if (fd == -1) {
- perror(rtc);
- exit(errno);
- }
-
- fprintf(stderr, "\n\t\t\tRTC Driver Test Example.\n\n");
-
- /* Turn on update interrupts (one per second) */
- retval = ioctl(fd, RTC_UIE_ON, 0);
- if (retval == -1) {
- if (errno == ENOTTY) {
- fprintf(stderr,
- "\n...Update IRQs not supported.\n");
- goto test_READ;
- }
- perror("RTC_UIE_ON ioctl");
- exit(errno);
- }
-
- fprintf(stderr, "Counting 5 update (1/sec) interrupts from reading %s:",
- rtc);
- fflush(stderr);
- for (i=1; i<6; i++) {
- /* This read will block */
- retval = read(fd, &data, sizeof(unsigned long));
- if (retval == -1) {
- perror("read");
- exit(errno);
- }
- fprintf(stderr, " %d",i);
- fflush(stderr);
- irqcount++;
- }
-
- fprintf(stderr, "\nAgain, from using select(2) on /dev/rtc:");
- fflush(stderr);
- for (i=1; i<6; i++) {
- struct timeval tv = {5, 0}; /* 5 second timeout on select */
- fd_set readfds;
-
- FD_ZERO(&readfds);
- FD_SET(fd, &readfds);
- /* The select will wait until an RTC interrupt happens. */
- retval = select(fd+1, &readfds, NULL, NULL, &tv);
- if (retval == -1) {
- perror("select");
- exit(errno);
- }
- /* This read won't block unlike the select-less case above. */
- retval = read(fd, &data, sizeof(unsigned long));
- if (retval == -1) {
- perror("read");
- exit(errno);
- }
- fprintf(stderr, " %d",i);
- fflush(stderr);
- irqcount++;
- }
-
- /* Turn off update interrupts */
- retval = ioctl(fd, RTC_UIE_OFF, 0);
- if (retval == -1) {
- perror("RTC_UIE_OFF ioctl");
- exit(errno);
- }
-
-test_READ:
- /* Read the RTC time/date */
- retval = ioctl(fd, RTC_RD_TIME, &rtc_tm);
- if (retval == -1) {
- perror("RTC_RD_TIME ioctl");
- exit(errno);
- }
-
- fprintf(stderr, "\n\nCurrent RTC date/time is %d-%d-%d, %02d:%02d:%02d.\n",
- rtc_tm.tm_mday, rtc_tm.tm_mon + 1, rtc_tm.tm_year + 1900,
- rtc_tm.tm_hour, rtc_tm.tm_min, rtc_tm.tm_sec);
-
- /* Set the alarm to 5 sec in the future, and check for rollover */
- rtc_tm.tm_sec += 5;
- if (rtc_tm.tm_sec >= 60) {
- rtc_tm.tm_sec %= 60;
- rtc_tm.tm_min++;
- }
- if (rtc_tm.tm_min == 60) {
- rtc_tm.tm_min = 0;
- rtc_tm.tm_hour++;
- }
- if (rtc_tm.tm_hour == 24)
- rtc_tm.tm_hour = 0;
-
- retval = ioctl(fd, RTC_ALM_SET, &rtc_tm);
- if (retval == -1) {
- if (errno == ENOTTY) {
- fprintf(stderr,
- "\n...Alarm IRQs not supported.\n");
- goto test_PIE;
- }
- perror("RTC_ALM_SET ioctl");
- exit(errno);
- }
-
- /* Read the current alarm settings */
- retval = ioctl(fd, RTC_ALM_READ, &rtc_tm);
- if (retval == -1) {
- perror("RTC_ALM_READ ioctl");
- exit(errno);
- }
-
- fprintf(stderr, "Alarm time now set to %02d:%02d:%02d.\n",
- rtc_tm.tm_hour, rtc_tm.tm_min, rtc_tm.tm_sec);
-
- /* Enable alarm interrupts */
- retval = ioctl(fd, RTC_AIE_ON, 0);
- if (retval == -1) {
- perror("RTC_AIE_ON ioctl");
- exit(errno);
- }
-
- fprintf(stderr, "Waiting 5 seconds for alarm...");
- fflush(stderr);
- /* This blocks until the alarm ring causes an interrupt */
- retval = read(fd, &data, sizeof(unsigned long));
- if (retval == -1) {
- perror("read");
- exit(errno);
- }
- irqcount++;
- fprintf(stderr, " okay. Alarm rang.\n");
-
- /* Disable alarm interrupts */
- retval = ioctl(fd, RTC_AIE_OFF, 0);
- if (retval == -1) {
- perror("RTC_AIE_OFF ioctl");
- exit(errno);
- }
-
-test_PIE:
- /* Read periodic IRQ rate */
- retval = ioctl(fd, RTC_IRQP_READ, &tmp);
- if (retval == -1) {
- /* not all RTCs support periodic IRQs */
- if (errno == ENOTTY) {
- fprintf(stderr, "\nNo periodic IRQ support\n");
- goto done;
- }
- perror("RTC_IRQP_READ ioctl");
- exit(errno);
- }
- fprintf(stderr, "\nPeriodic IRQ rate is %ldHz.\n", tmp);
-
- fprintf(stderr, "Counting 20 interrupts at:");
- fflush(stderr);
-
- /* The frequencies 128Hz, 256Hz, ... 8192Hz are only allowed for root. */
- for (tmp=2; tmp<=64; tmp*=2) {
-
- retval = ioctl(fd, RTC_IRQP_SET, tmp);
- if (retval == -1) {
- /* not all RTCs can change their periodic IRQ rate */
- if (errno == ENOTTY) {
- fprintf(stderr,
- "\n...Periodic IRQ rate is fixed\n");
- goto done;
- }
- perror("RTC_IRQP_SET ioctl");
- exit(errno);
- }
-
- fprintf(stderr, "\n%ldHz:\t", tmp);
- fflush(stderr);
-
- /* Enable periodic interrupts */
- retval = ioctl(fd, RTC_PIE_ON, 0);
- if (retval == -1) {
- perror("RTC_PIE_ON ioctl");
- exit(errno);
- }
-
- for (i=1; i<21; i++) {
- /* This blocks */
- retval = read(fd, &data, sizeof(unsigned long));
- if (retval == -1) {
- perror("read");
- exit(errno);
- }
- fprintf(stderr, " %d",i);
- fflush(stderr);
- irqcount++;
- }
-
- /* Disable periodic interrupts */
- retval = ioctl(fd, RTC_PIE_OFF, 0);
- if (retval == -1) {
- perror("RTC_PIE_OFF ioctl");
- exit(errno);
- }
- }
-
-done:
- fprintf(stderr, "\n\n\t\t\t *** Test complete ***\n");
-
- close(fd);
-
- return 0;
-}
+If all else fails, check out the tools/testing/selftests/timers/rtctest.c test!
F: kernel/time/clocksource.c
F: kernel/time/time*.c
F: kernel/time/ntp.c
+F: tools/testing/selftests/timers/
SC1200 WDT DRIVER
M: Zwane Mwaikambo <zwanem@gmail.com>
make -C $$TARGET clean; \
done;
+INSTALL_PATH ?= install
+INSTALL_PATH := $(abspath $(INSTALL_PATH))
+ALL_SCRIPT := $(INSTALL_PATH)/run_kselftest.sh
+
+install:
+ifdef INSTALL_PATH
+ @# Ask all targets to install their files
+ mkdir -p $(INSTALL_PATH)
+ for TARGET in $(TARGETS); do \
+ mkdir -p $(INSTALL_PATH)/$$TARGET ; \
+ make -C $$TARGET INSTALL_PATH=$(INSTALL_PATH)/$$TARGET install; \
+ done;
+
+ @# Ask all targets to emit their test scripts
+ echo "#!/bin/bash" > $(ALL_SCRIPT)
+ echo "cd \$$(dirname \$$0)" >> $(ALL_SCRIPT)
+ echo "ROOT=\$$PWD" >> $(ALL_SCRIPT)
+
+ for TARGET in $(TARGETS); do \
+ echo "echo ; echo Running tests in $$TARGET" >> $(ALL_SCRIPT); \
+ echo "echo ========================================" >> $(ALL_SCRIPT); \
+ echo "cd $$TARGET" >> $(ALL_SCRIPT); \
+ make -s --no-print-directory -C $$TARGET emit_tests >> $(ALL_SCRIPT); \
+ echo "cd \$$ROOT" >> $(ALL_SCRIPT); \
+ done;
+
+ chmod u+x $(ALL_SCRIPT)
+else
+ $(error Error: set INSTALL_PATH to use install)
+endif
+
clean:
for TARGET in $(TARGETS); do \
make -C $$TARGET clean; \
done;
+
+.PHONY: install
echo "Not an x86 target, can't build breakpoints selftests"
endif
-run_tests:
- @./breakpoint_test || echo "breakpoints selftests: [FAIL]"
+TEST_PROGS := breakpoint_test
+
+include ../lib.mk
clean:
rm -fr breakpoint_test
all:
-run_tests:
- @/bin/bash ./on-off-test.sh || echo "cpu-hotplug selftests: [FAIL]"
+TEST_PROGS := cpu-on-off-test.sh
+
+include ../lib.mk
run_full_test:
- @/bin/bash ./on-off-test.sh -a || echo "cpu-hotplug selftests: [FAIL]"
+ @/bin/bash ./cpu-on-off-test.sh -a || echo "cpu-hotplug selftests: [FAIL]"
clean:
--- /dev/null
+#!/bin/bash
+
+SYSFS=
+
+prerequisite()
+{
+ msg="skip all tests:"
+
+ if [ $UID != 0 ]; then
+ echo $msg must be run as root >&2
+ exit 0
+ fi
+
+ taskset -p 01 $$
+
+ SYSFS=`mount -t sysfs | head -1 | awk '{ print $3 }'`
+
+ if [ ! -d "$SYSFS" ]; then
+ echo $msg sysfs is not mounted >&2
+ exit 0
+ fi
+
+ if ! ls $SYSFS/devices/system/cpu/cpu* > /dev/null 2>&1; then
+ echo $msg cpu hotplug is not supported >&2
+ exit 0
+ fi
+
+ echo "CPU online/offline summary:"
+ online_cpus=`cat $SYSFS/devices/system/cpu/online`
+ online_max=${online_cpus##*-}
+ echo -e "\t Cpus in online state: $online_cpus"
+
+ offline_cpus=`cat $SYSFS/devices/system/cpu/offline`
+ if [[ "a$offline_cpus" = "a" ]]; then
+ offline_cpus=0
+ else
+ offline_max=${offline_cpus##*-}
+ fi
+ echo -e "\t Cpus in offline state: $offline_cpus"
+}
+
+#
+# list all hot-pluggable CPUs
+#
+hotpluggable_cpus()
+{
+ local state=${1:-.\*}
+
+ for cpu in $SYSFS/devices/system/cpu/cpu*; do
+ if [ -f $cpu/online ] && grep -q $state $cpu/online; then
+ echo ${cpu##/*/cpu}
+ fi
+ done
+}
+
+hotplaggable_offline_cpus()
+{
+ hotpluggable_cpus 0
+}
+
+hotpluggable_online_cpus()
+{
+ hotpluggable_cpus 1
+}
+
+cpu_is_online()
+{
+ grep -q 1 $SYSFS/devices/system/cpu/cpu$1/online
+}
+
+cpu_is_offline()
+{
+ grep -q 0 $SYSFS/devices/system/cpu/cpu$1/online
+}
+
+online_cpu()
+{
+ echo 1 > $SYSFS/devices/system/cpu/cpu$1/online
+}
+
+offline_cpu()
+{
+ echo 0 > $SYSFS/devices/system/cpu/cpu$1/online
+}
+
+online_cpu_expect_success()
+{
+ local cpu=$1
+
+ if ! online_cpu $cpu; then
+ echo $FUNCNAME $cpu: unexpected fail >&2
+ elif ! cpu_is_online $cpu; then
+ echo $FUNCNAME $cpu: unexpected offline >&2
+ fi
+}
+
+online_cpu_expect_fail()
+{
+ local cpu=$1
+
+ if online_cpu $cpu 2> /dev/null; then
+ echo $FUNCNAME $cpu: unexpected success >&2
+ elif ! cpu_is_offline $cpu; then
+ echo $FUNCNAME $cpu: unexpected online >&2
+ fi
+}
+
+offline_cpu_expect_success()
+{
+ local cpu=$1
+
+ if ! offline_cpu $cpu; then
+ echo $FUNCNAME $cpu: unexpected fail >&2
+ elif ! cpu_is_offline $cpu; then
+ echo $FUNCNAME $cpu: unexpected offline >&2
+ fi
+}
+
+offline_cpu_expect_fail()
+{
+ local cpu=$1
+
+ if offline_cpu $cpu 2> /dev/null; then
+ echo $FUNCNAME $cpu: unexpected success >&2
+ elif ! cpu_is_online $cpu; then
+ echo $FUNCNAME $cpu: unexpected offline >&2
+ fi
+}
+
+error=-12
+allcpus=0
+priority=0
+online_cpus=0
+online_max=0
+offline_cpus=0
+offline_max=0
+
+while getopts e:ahp: opt; do
+ case $opt in
+ e)
+ error=$OPTARG
+ ;;
+ a)
+ allcpus=1
+ ;;
+ h)
+ echo "Usage $0 [ -a ] [ -e errno ] [ -p notifier-priority ]"
+ echo -e "\t default offline one cpu"
+ echo -e "\t run with -a option to offline all cpus"
+ exit
+ ;;
+ p)
+ priority=$OPTARG
+ ;;
+ esac
+done
+
+if ! [ "$error" -ge -4095 -a "$error" -lt 0 ]; then
+ echo "error code must be -4095 <= errno < 0" >&2
+ exit 1
+fi
+
+prerequisite
+
+#
+# Safe test (default) - offline and online one cpu
+#
+if [ $allcpus -eq 0 ]; then
+ echo "Limited scope test: one hotplug cpu"
+ echo -e "\t (leaves cpu in the original state):"
+ echo -e "\t online to offline to online: cpu $online_max"
+ offline_cpu_expect_success $online_max
+ online_cpu_expect_success $online_max
+
+ if [[ $offline_cpus -gt 0 ]]; then
+ echo -e "\t offline to online to offline: cpu $offline_max"
+ online_cpu_expect_success $offline_max
+ offline_cpu_expect_success $offline_max
+ fi
+ exit 0
+else
+ echo "Full scope test: all hotplug cpus"
+ echo -e "\t online all offline cpus"
+ echo -e "\t offline all online cpus"
+ echo -e "\t online all offline cpus"
+fi
+
+#
+# Online all hot-pluggable CPUs
+#
+for cpu in `hotplaggable_offline_cpus`; do
+ online_cpu_expect_success $cpu
+done
+
+#
+# Offline all hot-pluggable CPUs
+#
+for cpu in `hotpluggable_online_cpus`; do
+ offline_cpu_expect_success $cpu
+done
+
+#
+# Online all hot-pluggable CPUs again
+#
+for cpu in `hotplaggable_offline_cpus`; do
+ online_cpu_expect_success $cpu
+done
+
+#
+# Test with cpu notifier error injection
+#
+
+DEBUGFS=`mount -t debugfs | head -1 | awk '{ print $3 }'`
+NOTIFIER_ERR_INJECT_DIR=$DEBUGFS/notifier-error-inject/cpu
+
+prerequisite_extra()
+{
+ msg="skip extra tests:"
+
+ /sbin/modprobe -q -r cpu-notifier-error-inject
+ /sbin/modprobe -q cpu-notifier-error-inject priority=$priority
+
+ if [ ! -d "$DEBUGFS" ]; then
+ echo $msg debugfs is not mounted >&2
+ exit 0
+ fi
+
+ if [ ! -d $NOTIFIER_ERR_INJECT_DIR ]; then
+ echo $msg cpu-notifier-error-inject module is not available >&2
+ exit 0
+ fi
+}
+
+prerequisite_extra
+
+#
+# Offline all hot-pluggable CPUs
+#
+echo 0 > $NOTIFIER_ERR_INJECT_DIR/actions/CPU_DOWN_PREPARE/error
+for cpu in `hotpluggable_online_cpus`; do
+ offline_cpu_expect_success $cpu
+done
+
+#
+# Test CPU hot-add error handling (offline => online)
+#
+echo $error > $NOTIFIER_ERR_INJECT_DIR/actions/CPU_UP_PREPARE/error
+for cpu in `hotplaggable_offline_cpus`; do
+ online_cpu_expect_fail $cpu
+done
+
+#
+# Online all hot-pluggable CPUs
+#
+echo 0 > $NOTIFIER_ERR_INJECT_DIR/actions/CPU_UP_PREPARE/error
+for cpu in `hotplaggable_offline_cpus`; do
+ online_cpu_expect_success $cpu
+done
+
+#
+# Test CPU hot-remove error handling (online => offline)
+#
+echo $error > $NOTIFIER_ERR_INJECT_DIR/actions/CPU_DOWN_PREPARE/error
+for cpu in `hotpluggable_online_cpus`; do
+ offline_cpu_expect_fail $cpu
+done
+
+echo 0 > $NOTIFIER_ERR_INJECT_DIR/actions/CPU_DOWN_PREPARE/error
+/sbin/modprobe -q -r cpu-notifier-error-inject
+++ /dev/null
-#!/bin/bash
-
-SYSFS=
-
-prerequisite()
-{
- msg="skip all tests:"
-
- if [ $UID != 0 ]; then
- echo $msg must be run as root >&2
- exit 0
- fi
-
- taskset -p 01 $$
-
- SYSFS=`mount -t sysfs | head -1 | awk '{ print $3 }'`
-
- if [ ! -d "$SYSFS" ]; then
- echo $msg sysfs is not mounted >&2
- exit 0
- fi
-
- if ! ls $SYSFS/devices/system/cpu/cpu* > /dev/null 2>&1; then
- echo $msg cpu hotplug is not supported >&2
- exit 0
- fi
-
- echo "CPU online/offline summary:"
- online_cpus=`cat $SYSFS/devices/system/cpu/online`
- online_max=${online_cpus##*-}
- echo -e "\t Cpus in online state: $online_cpus"
-
- offline_cpus=`cat $SYSFS/devices/system/cpu/offline`
- if [[ "a$offline_cpus" = "a" ]]; then
- offline_cpus=0
- else
- offline_max=${offline_cpus##*-}
- fi
- echo -e "\t Cpus in offline state: $offline_cpus"
-}
-
-#
-# list all hot-pluggable CPUs
-#
-hotpluggable_cpus()
-{
- local state=${1:-.\*}
-
- for cpu in $SYSFS/devices/system/cpu/cpu*; do
- if [ -f $cpu/online ] && grep -q $state $cpu/online; then
- echo ${cpu##/*/cpu}
- fi
- done
-}
-
-hotplaggable_offline_cpus()
-{
- hotpluggable_cpus 0
-}
-
-hotpluggable_online_cpus()
-{
- hotpluggable_cpus 1
-}
-
-cpu_is_online()
-{
- grep -q 1 $SYSFS/devices/system/cpu/cpu$1/online
-}
-
-cpu_is_offline()
-{
- grep -q 0 $SYSFS/devices/system/cpu/cpu$1/online
-}
-
-online_cpu()
-{
- echo 1 > $SYSFS/devices/system/cpu/cpu$1/online
-}
-
-offline_cpu()
-{
- echo 0 > $SYSFS/devices/system/cpu/cpu$1/online
-}
-
-online_cpu_expect_success()
-{
- local cpu=$1
-
- if ! online_cpu $cpu; then
- echo $FUNCNAME $cpu: unexpected fail >&2
- elif ! cpu_is_online $cpu; then
- echo $FUNCNAME $cpu: unexpected offline >&2
- fi
-}
-
-online_cpu_expect_fail()
-{
- local cpu=$1
-
- if online_cpu $cpu 2> /dev/null; then
- echo $FUNCNAME $cpu: unexpected success >&2
- elif ! cpu_is_offline $cpu; then
- echo $FUNCNAME $cpu: unexpected online >&2
- fi
-}
-
-offline_cpu_expect_success()
-{
- local cpu=$1
-
- if ! offline_cpu $cpu; then
- echo $FUNCNAME $cpu: unexpected fail >&2
- elif ! cpu_is_offline $cpu; then
- echo $FUNCNAME $cpu: unexpected offline >&2
- fi
-}
-
-offline_cpu_expect_fail()
-{
- local cpu=$1
-
- if offline_cpu $cpu 2> /dev/null; then
- echo $FUNCNAME $cpu: unexpected success >&2
- elif ! cpu_is_online $cpu; then
- echo $FUNCNAME $cpu: unexpected offline >&2
- fi
-}
-
-error=-12
-allcpus=0
-priority=0
-online_cpus=0
-online_max=0
-offline_cpus=0
-offline_max=0
-
-while getopts e:ahp: opt; do
- case $opt in
- e)
- error=$OPTARG
- ;;
- a)
- allcpus=1
- ;;
- h)
- echo "Usage $0 [ -a ] [ -e errno ] [ -p notifier-priority ]"
- echo -e "\t default offline one cpu"
- echo -e "\t run with -a option to offline all cpus"
- exit
- ;;
- p)
- priority=$OPTARG
- ;;
- esac
-done
-
-if ! [ "$error" -ge -4095 -a "$error" -lt 0 ]; then
- echo "error code must be -4095 <= errno < 0" >&2
- exit 1
-fi
-
-prerequisite
-
-#
-# Safe test (default) - offline and online one cpu
-#
-if [ $allcpus -eq 0 ]; then
- echo "Limited scope test: one hotplug cpu"
- echo -e "\t (leaves cpu in the original state):"
- echo -e "\t online to offline to online: cpu $online_max"
- offline_cpu_expect_success $online_max
- online_cpu_expect_success $online_max
-
- if [[ $offline_cpus -gt 0 ]]; then
- echo -e "\t offline to online to offline: cpu $offline_max"
- online_cpu_expect_success $offline_max
- offline_cpu_expect_success $offline_max
- fi
- exit 0
-else
- echo "Full scope test: all hotplug cpus"
- echo -e "\t online all offline cpus"
- echo -e "\t offline all online cpus"
- echo -e "\t online all offline cpus"
-fi
-
-#
-# Online all hot-pluggable CPUs
-#
-for cpu in `hotplaggable_offline_cpus`; do
- online_cpu_expect_success $cpu
-done
-
-#
-# Offline all hot-pluggable CPUs
-#
-for cpu in `hotpluggable_online_cpus`; do
- offline_cpu_expect_success $cpu
-done
-
-#
-# Online all hot-pluggable CPUs again
-#
-for cpu in `hotplaggable_offline_cpus`; do
- online_cpu_expect_success $cpu
-done
-
-#
-# Test with cpu notifier error injection
-#
-
-DEBUGFS=`mount -t debugfs | head -1 | awk '{ print $3 }'`
-NOTIFIER_ERR_INJECT_DIR=$DEBUGFS/notifier-error-inject/cpu
-
-prerequisite_extra()
-{
- msg="skip extra tests:"
-
- /sbin/modprobe -q -r cpu-notifier-error-inject
- /sbin/modprobe -q cpu-notifier-error-inject priority=$priority
-
- if [ ! -d "$DEBUGFS" ]; then
- echo $msg debugfs is not mounted >&2
- exit 0
- fi
-
- if [ ! -d $NOTIFIER_ERR_INJECT_DIR ]; then
- echo $msg cpu-notifier-error-inject module is not available >&2
- exit 0
- fi
-}
-
-prerequisite_extra
-
-#
-# Offline all hot-pluggable CPUs
-#
-echo 0 > $NOTIFIER_ERR_INJECT_DIR/actions/CPU_DOWN_PREPARE/error
-for cpu in `hotpluggable_online_cpus`; do
- offline_cpu_expect_success $cpu
-done
-
-#
-# Test CPU hot-add error handling (offline => online)
-#
-echo $error > $NOTIFIER_ERR_INJECT_DIR/actions/CPU_UP_PREPARE/error
-for cpu in `hotplaggable_offline_cpus`; do
- online_cpu_expect_fail $cpu
-done
-
-#
-# Online all hot-pluggable CPUs
-#
-echo 0 > $NOTIFIER_ERR_INJECT_DIR/actions/CPU_UP_PREPARE/error
-for cpu in `hotplaggable_offline_cpus`; do
- online_cpu_expect_success $cpu
-done
-
-#
-# Test CPU hot-remove error handling (online => offline)
-#
-echo $error > $NOTIFIER_ERR_INJECT_DIR/actions/CPU_DOWN_PREPARE/error
-for cpu in `hotpluggable_online_cpus`; do
- offline_cpu_expect_fail $cpu
-done
-
-echo 0 > $NOTIFIER_ERR_INJECT_DIR/actions/CPU_DOWN_PREPARE/error
-/sbin/modprobe -q -r cpu-notifier-error-inject
-CC = $(CROSS_COMPILE)gcc
CFLAGS = -Wall
test_objs = open-unlink create-read
all: $(test_objs)
-run_tests: all
- @/bin/bash ./efivarfs.sh || echo "efivarfs selftests: [FAIL]"
+TEST_PROGS := efivarfs.sh
+TEST_FILES := $(test_objs)
+
+include ../lib.mk
clean:
rm -f $(test_objs)
-CC = $(CROSS_COMPILE)gcc
CFLAGS = -Wall
BINARIES = execveat
DEPS = execveat.symlink execveat.denatured script subdir
%: %.c
$(CC) $(CFLAGS) -o $@ $^
-run_tests: all
- ./execveat
+TEST_PROGS := execveat
+TEST_FILES := $(DEPS)
+
+include ../lib.mk
+
+override EMIT_TESTS := echo "mkdir -p subdir; (./execveat && echo \"selftests: execveat [PASS]\") || echo \"selftests: execveat [FAIL]\""
clean:
rm -rf $(BINARIES) $(DEPS) subdir.moved execveat.moved xxxxx*
# No binaries, but make sure arg-less "make" doesn't trigger "run_tests"
all:
-fw_filesystem:
- @if /bin/sh ./fw_filesystem.sh ; then \
- echo "fw_filesystem: ok"; \
- else \
- echo "fw_filesystem: [FAIL]"; \
- exit 1; \
- fi
+TEST_PROGS := fw_filesystem.sh fw_userhelper.sh
-fw_userhelper:
- @if /bin/sh ./fw_userhelper.sh ; then \
- echo "fw_userhelper: ok"; \
- else \
- echo "fw_userhelper: [FAIL]"; \
- exit 1; \
- fi
-
-run_tests: all fw_filesystem fw_userhelper
+include ../lib.mk
# Nothing to clean up.
clean:
-
-.PHONY: all clean run_tests fw_filesystem fw_userhelper
all:
-run_tests:
- @/bin/sh ./ftracetest || echo "ftrace selftests: [FAIL]"
+TEST_PROGS := ftracetest
+
+include ../lib.mk
clean:
rm -rf logs/*
# description: Basic event tracing check
test -f available_events -a -f set_event -a -d events
# check scheduler events are available
-grep -q sched available_events && exit 0 || exit -1
\ No newline at end of file
+grep -q sched available_events && exit 0 || exit $FAIL
fail() { #msg
do_reset
echo $1
- exit -1
+ exit $FAIL
+}
+
+yield() {
+ ping localhost -c 1 || sleep .001 || usleep 1 || sleep 1
}
if [ ! -f set_event -o ! -d events/sched ]; then
do_reset
echo 'sched:sched_switch' > set_event
-usleep 1
+
+yield
count=`cat trace | grep sched_switch | wc -l`
if [ $count -eq 0 ]; then
do_reset
echo 1 > events/sched/sched_switch/enable
-usleep 1
+
+yield
count=`cat trace | grep sched_switch | wc -l`
if [ $count -eq 0 ]; then
do_reset
echo 0 > events/sched/sched_switch/enable
-usleep 1
+
+yield
count=`cat trace | grep sched_switch | wc -l`
if [ $count -ne 0 ]; then
fail() { #msg
do_reset
echo $1
- exit -1
+ exit $FAIL
+}
+
+yield() {
+ ping localhost -c 1 || sleep .001 || usleep 1 || sleep 1
}
if [ ! -f set_event -o ! -d events/sched ]; then
do_reset
echo 'sched:*' > set_event
-usleep 1
+
+yield
count=`cat trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
if [ $count -lt 3 ]; then
do_reset
echo 1 > events/sched/enable
-usleep 1
+
+yield
count=`cat trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
if [ $count -lt 3 ]; then
do_reset
echo 0 > events/sched/enable
-usleep 1
+
+yield
count=`cat trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
if [ $count -ne 0 ]; then
fail() { #msg
do_reset
echo $1
- exit -1
+ exit $FAIL
+}
+
+yield() {
+ ping localhost -c 1 || sleep .001 || usleep 1 || sleep 1
}
if [ ! -f available_events -o ! -f set_event -o ! -d events ]; then
do_reset
echo '*:*' > set_event
+
+yield
+
count=`cat trace | grep -v ^# | wc -l`
if [ $count -eq 0 ]; then
fail "none of events are recorded"
do_reset
echo 1 > events/enable
+
+yield
+
count=`cat trace | grep -v ^# | wc -l`
if [ $count -eq 0 ]; then
fail "none of events are recorded"
do_reset
echo 0 > events/enable
+
+yield
+
count=`cat trace | grep -v ^# | wc -l`
if [ $count -ne 0 ]; then
fail "any of events should not be recorded"
do_reset() {
reset_tracer
- echo 0 > /proc/sys/kernel/stack_tracer_enabled
+ if [ -e /proc/sys/kernel/stack_tracer_enabled ]; then
+ echo 0 > /proc/sys/kernel/stack_tracer_enabled
+ fi
enable_tracing
clear_trace
echo > set_ftrace_filter
fail() { # msg
do_reset
echo $1
- exit -1
+ exit $FAIL
}
disable_tracing
fail() { # msg
do_reset
echo $1
- exit -1
+ exit $FAIL
}
disable_tracing
reset_tracer
echo > set_ftrace_filter
echo $1
- exit -1
+ exit $FAIL
}
echo "Testing function tracer with profiler:"
--- /dev/null
+#!/bin/bash
+#
+# gen_kselftest_tar
+# Generate kselftest tarball
+# Author: Shuah Khan <shuahkh@osg.samsung.com>
+# Copyright (C) 2015 Samsung Electronics Co., Ltd.
+
+# This software may be freely redistributed under the terms of the GNU
+# General Public License (GPLv2).
+
+# main
+main()
+{
+ if [ "$#" -eq 0 ]; then
+ echo "$0: Generating default compression gzip"
+ copts="cvzf"
+ ext=".tar.gz"
+ else
+ case "$1" in
+ tar)
+ copts="cvf"
+ ext=".tar"
+ ;;
+ targz)
+ copts="cvzf"
+ ext=".tar.gz"
+ ;;
+ tarbz2)
+ copts="cvjf"
+ ext=".tar.bz2"
+ ;;
+ tarxz)
+ copts="cvJf"
+ ext=".tar.xz"
+ ;;
+ *)
+ echo "Unknown tarball format $1"
+ exit 1
+ ;;
+ esac
+ fi
+
+ install_dir=./kselftest
+
+# Run install using INSTALL_KSFT_PATH override to generate install
+# directory
+./kselftest_install.sh
+tar $copts kselftest${ext} $install_dir
+echo "Kselftest archive kselftest${ext} created!"
+
+# clean up install directory
+rm -rf kselftest
+}
+
+main "$@"
CFLAGS += -I../../../../usr/include/
all:
-ifeq ($(ARCH),x86)
- gcc $(CFLAGS) msgque.c -o msgque_test
-else
- echo "Not an x86 target, can't build msgque selftest"
-endif
+ $(CC) $(CFLAGS) msgque.c -o msgque_test
+
+TEST_PROGS := msgque_test
-run_tests: all
- ./msgque_test
+include ../lib.mk
clean:
rm -fr ./msgque_test
-CC := $(CROSS_COMPILE)$(CC)
CFLAGS += -I../../../../usr/include/
all: kcmp_test
-run_tests: all
- @./kcmp_test || echo "kcmp_test: [FAIL]"
+TEST_PROGS := kcmp_test
+
+include ../lib.mk
clean:
$(RM) kcmp_test kcmp-test-file
--- /dev/null
+#!/bin/bash
+#
+# Kselftest Install
+# Install kselftest tests
+# Author: Shuah Khan <shuahkh@osg.samsung.com>
+# Copyright (C) 2015 Samsung Electronics Co., Ltd.
+
+# This software may be freely redistributed under the terms of the GNU
+# General Public License (GPLv2).
+
+install_loc=`pwd`
+
+main()
+{
+ if [ $(basename $install_loc) != "selftests" ]; then
+ echo "$0: Please run it in selftests directory ..."
+ exit 1;
+ fi
+ if [ "$#" -eq 0 ]; then
+ echo "$0: Installing in default location - $install_loc ..."
+ elif [ ! -d "$1" ]; then
+ echo "$0: $1 doesn't exist!!"
+ exit 1;
+ else
+ install_loc=$1
+ echo "$0: Installing in specified location - $install_loc ..."
+ fi
+
+ install_dir=$install_loc/kselftest
+
+# Create install directory
+ mkdir -p $install_dir
+# Build tests
+ INSTALL_PATH=$install_dir make install
+}
+
+main "$@"
--- /dev/null
+# This mimics the top-level Makefile. We do it explicitly here so that this
+# Makefile can operate with or without the kbuild infrastructure.
+CC := $(CROSS_COMPILE)gcc
+
+define RUN_TESTS
+ @for TEST in $(TEST_PROGS); do \
+ (./$$TEST && echo "selftests: $$TEST [PASS]") || echo "selftests: $$TEST [FAIL]"; \
+ done;
+endef
+
+run_tests: all
+ $(RUN_TESTS)
+
+define INSTALL_RULE
+ mkdir -p $(INSTALL_PATH)
+ install -t $(INSTALL_PATH) $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES)
+endef
+
+install: all
+ifdef INSTALL_PATH
+ $(INSTALL_RULE)
+else
+ $(error Error: set INSTALL_PATH to use install)
+endif
+
+define EMIT_TESTS
+ @for TEST in $(TEST_PROGS); do \
+ echo "(./$$TEST && echo \"selftests: $$TEST [PASS]\") || echo \"selftests: $$TEST [FAIL]\""; \
+ done;
+endef
+
+emit_tests:
+ $(EMIT_TESTS)
+
+.PHONY: run_tests all clean install emit_tests
+CC = $(CROSS_COMPILE)gcc
CFLAGS += -D_FILE_OFFSET_BITS=64
CFLAGS += -I../../../../include/uapi/
CFLAGS += -I../../../../include/
+CFLAGS += -I../../../../usr/include/
all:
- gcc $(CFLAGS) memfd_test.c -o memfd_test
+ $(CC) $(CFLAGS) memfd_test.c -o memfd_test
-run_tests: all
- gcc $(CFLAGS) memfd_test.c -o memfd_test
- @./memfd_test || echo "memfd_test: [FAIL]"
+TEST_PROGS := memfd_test
+
+include ../lib.mk
build_fuse:
- gcc $(CFLAGS) fuse_mnt.c `pkg-config fuse --cflags --libs` -o fuse_mnt
- gcc $(CFLAGS) fuse_test.c -o fuse_test
+ $(CC) $(CFLAGS) fuse_mnt.c `pkg-config fuse --cflags --libs` -o fuse_mnt
+ $(CC) $(CFLAGS) fuse_test.c -o fuse_test
run_fuse: build_fuse
@./run_fuse_test.sh || echo "fuse_test: [FAIL]"
all:
-run_tests:
- @/bin/bash ./on-off-test.sh -r 2 || echo "memory-hotplug selftests: [FAIL]"
+include ../lib.mk
+
+TEST_PROGS := mem-on-off-test.sh
+override RUN_TESTS := ./mem-on-off-test.sh -r 2 || echo "selftests: memory-hotplug [FAIL]"
+override EMIT_TESTS := echo "$(RUN_TESTS)"
run_full_test:
- @/bin/bash ./on-off-test.sh || echo "memory-hotplug selftests: [FAIL]"
+ @/bin/bash ./mem-on-off-test.sh || echo "memory-hotplug selftests: [FAIL]"
clean:
--- /dev/null
+#!/bin/bash
+
+SYSFS=
+
+prerequisite()
+{
+ msg="skip all tests:"
+
+ if [ $UID != 0 ]; then
+ echo $msg must be run as root >&2
+ exit 0
+ fi
+
+ SYSFS=`mount -t sysfs | head -1 | awk '{ print $3 }'`
+
+ if [ ! -d "$SYSFS" ]; then
+ echo $msg sysfs is not mounted >&2
+ exit 0
+ fi
+
+ if ! ls $SYSFS/devices/system/memory/memory* > /dev/null 2>&1; then
+ echo $msg memory hotplug is not supported >&2
+ exit 0
+ fi
+}
+
+#
+# list all hot-pluggable memory
+#
+hotpluggable_memory()
+{
+ local state=${1:-.\*}
+
+ for memory in $SYSFS/devices/system/memory/memory*; do
+ if grep -q 1 $memory/removable &&
+ grep -q $state $memory/state; then
+ echo ${memory##/*/memory}
+ fi
+ done
+}
+
+hotplaggable_offline_memory()
+{
+ hotpluggable_memory offline
+}
+
+hotpluggable_online_memory()
+{
+ hotpluggable_memory online
+}
+
+memory_is_online()
+{
+ grep -q online $SYSFS/devices/system/memory/memory$1/state
+}
+
+memory_is_offline()
+{
+ grep -q offline $SYSFS/devices/system/memory/memory$1/state
+}
+
+online_memory()
+{
+ echo online > $SYSFS/devices/system/memory/memory$1/state
+}
+
+offline_memory()
+{
+ echo offline > $SYSFS/devices/system/memory/memory$1/state
+}
+
+online_memory_expect_success()
+{
+ local memory=$1
+
+ if ! online_memory $memory; then
+ echo $FUNCNAME $memory: unexpected fail >&2
+ elif ! memory_is_online $memory; then
+ echo $FUNCNAME $memory: unexpected offline >&2
+ fi
+}
+
+online_memory_expect_fail()
+{
+ local memory=$1
+
+ if online_memory $memory 2> /dev/null; then
+ echo $FUNCNAME $memory: unexpected success >&2
+ elif ! memory_is_offline $memory; then
+ echo $FUNCNAME $memory: unexpected online >&2
+ fi
+}
+
+offline_memory_expect_success()
+{
+ local memory=$1
+
+ if ! offline_memory $memory; then
+ echo $FUNCNAME $memory: unexpected fail >&2
+ elif ! memory_is_offline $memory; then
+ echo $FUNCNAME $memory: unexpected offline >&2
+ fi
+}
+
+offline_memory_expect_fail()
+{
+ local memory=$1
+
+ if offline_memory $memory 2> /dev/null; then
+ echo $FUNCNAME $memory: unexpected success >&2
+ elif ! memory_is_online $memory; then
+ echo $FUNCNAME $memory: unexpected offline >&2
+ fi
+}
+
+error=-12
+priority=0
+ratio=10
+
+while getopts e:hp:r: opt; do
+ case $opt in
+ e)
+ error=$OPTARG
+ ;;
+ h)
+ echo "Usage $0 [ -e errno ] [ -p notifier-priority ] [ -r percent-of-memory-to-offline ]"
+ exit
+ ;;
+ p)
+ priority=$OPTARG
+ ;;
+ r)
+ ratio=$OPTARG
+ ;;
+ esac
+done
+
+if ! [ "$error" -ge -4095 -a "$error" -lt 0 ]; then
+ echo "error code must be -4095 <= errno < 0" >&2
+ exit 1
+fi
+
+prerequisite
+
+echo "Test scope: $ratio% hotplug memory"
+echo -e "\t online all hotplug memory in offline state"
+echo -e "\t offline $ratio% hotplug memory in online state"
+echo -e "\t online all hotplug memory in offline state"
+
+#
+# Online all hot-pluggable memory
+#
+for memory in `hotplaggable_offline_memory`; do
+ echo offline-online $memory
+ online_memory_expect_success $memory
+done
+
+#
+# Offline $ratio percent of hot-pluggable memory
+#
+for memory in `hotpluggable_online_memory`; do
+ if [ $((RANDOM % 100)) -lt $ratio ]; then
+ echo online-offline $memory
+ offline_memory_expect_success $memory
+ fi
+done
+
+#
+# Online all hot-pluggable memory again
+#
+for memory in `hotplaggable_offline_memory`; do
+ echo offline-online $memory
+ online_memory_expect_success $memory
+done
+
+#
+# Test with memory notifier error injection
+#
+
+DEBUGFS=`mount -t debugfs | head -1 | awk '{ print $3 }'`
+NOTIFIER_ERR_INJECT_DIR=$DEBUGFS/notifier-error-inject/memory
+
+prerequisite_extra()
+{
+ msg="skip extra tests:"
+
+ /sbin/modprobe -q -r memory-notifier-error-inject
+ /sbin/modprobe -q memory-notifier-error-inject priority=$priority
+
+ if [ ! -d "$DEBUGFS" ]; then
+ echo $msg debugfs is not mounted >&2
+ exit 0
+ fi
+
+ if [ ! -d $NOTIFIER_ERR_INJECT_DIR ]; then
+ echo $msg memory-notifier-error-inject module is not available >&2
+ exit 0
+ fi
+}
+
+prerequisite_extra
+
+#
+# Offline $ratio percent of hot-pluggable memory
+#
+echo 0 > $NOTIFIER_ERR_INJECT_DIR/actions/MEM_GOING_OFFLINE/error
+for memory in `hotpluggable_online_memory`; do
+ if [ $((RANDOM % 100)) -lt $ratio ]; then
+ offline_memory_expect_success $memory
+ fi
+done
+
+#
+# Test memory hot-add error handling (offline => online)
+#
+echo $error > $NOTIFIER_ERR_INJECT_DIR/actions/MEM_GOING_ONLINE/error
+for memory in `hotplaggable_offline_memory`; do
+ online_memory_expect_fail $memory
+done
+
+#
+# Online all hot-pluggable memory
+#
+echo 0 > $NOTIFIER_ERR_INJECT_DIR/actions/MEM_GOING_ONLINE/error
+for memory in `hotplaggable_offline_memory`; do
+ online_memory_expect_success $memory
+done
+
+#
+# Test memory hot-remove error handling (online => offline)
+#
+echo $error > $NOTIFIER_ERR_INJECT_DIR/actions/MEM_GOING_OFFLINE/error
+for memory in `hotpluggable_online_memory`; do
+ offline_memory_expect_fail $memory
+done
+
+echo 0 > $NOTIFIER_ERR_INJECT_DIR/actions/MEM_GOING_OFFLINE/error
+/sbin/modprobe -q -r memory-notifier-error-inject
+++ /dev/null
-#!/bin/bash
-
-SYSFS=
-
-prerequisite()
-{
- msg="skip all tests:"
-
- if [ $UID != 0 ]; then
- echo $msg must be run as root >&2
- exit 0
- fi
-
- SYSFS=`mount -t sysfs | head -1 | awk '{ print $3 }'`
-
- if [ ! -d "$SYSFS" ]; then
- echo $msg sysfs is not mounted >&2
- exit 0
- fi
-
- if ! ls $SYSFS/devices/system/memory/memory* > /dev/null 2>&1; then
- echo $msg memory hotplug is not supported >&2
- exit 0
- fi
-}
-
-#
-# list all hot-pluggable memory
-#
-hotpluggable_memory()
-{
- local state=${1:-.\*}
-
- for memory in $SYSFS/devices/system/memory/memory*; do
- if grep -q 1 $memory/removable &&
- grep -q $state $memory/state; then
- echo ${memory##/*/memory}
- fi
- done
-}
-
-hotplaggable_offline_memory()
-{
- hotpluggable_memory offline
-}
-
-hotpluggable_online_memory()
-{
- hotpluggable_memory online
-}
-
-memory_is_online()
-{
- grep -q online $SYSFS/devices/system/memory/memory$1/state
-}
-
-memory_is_offline()
-{
- grep -q offline $SYSFS/devices/system/memory/memory$1/state
-}
-
-online_memory()
-{
- echo online > $SYSFS/devices/system/memory/memory$1/state
-}
-
-offline_memory()
-{
- echo offline > $SYSFS/devices/system/memory/memory$1/state
-}
-
-online_memory_expect_success()
-{
- local memory=$1
-
- if ! online_memory $memory; then
- echo $FUNCNAME $memory: unexpected fail >&2
- elif ! memory_is_online $memory; then
- echo $FUNCNAME $memory: unexpected offline >&2
- fi
-}
-
-online_memory_expect_fail()
-{
- local memory=$1
-
- if online_memory $memory 2> /dev/null; then
- echo $FUNCNAME $memory: unexpected success >&2
- elif ! memory_is_offline $memory; then
- echo $FUNCNAME $memory: unexpected online >&2
- fi
-}
-
-offline_memory_expect_success()
-{
- local memory=$1
-
- if ! offline_memory $memory; then
- echo $FUNCNAME $memory: unexpected fail >&2
- elif ! memory_is_offline $memory; then
- echo $FUNCNAME $memory: unexpected offline >&2
- fi
-}
-
-offline_memory_expect_fail()
-{
- local memory=$1
-
- if offline_memory $memory 2> /dev/null; then
- echo $FUNCNAME $memory: unexpected success >&2
- elif ! memory_is_online $memory; then
- echo $FUNCNAME $memory: unexpected offline >&2
- fi
-}
-
-error=-12
-priority=0
-ratio=10
-
-while getopts e:hp:r: opt; do
- case $opt in
- e)
- error=$OPTARG
- ;;
- h)
- echo "Usage $0 [ -e errno ] [ -p notifier-priority ] [ -r percent-of-memory-to-offline ]"
- exit
- ;;
- p)
- priority=$OPTARG
- ;;
- r)
- ratio=$OPTARG
- ;;
- esac
-done
-
-if ! [ "$error" -ge -4095 -a "$error" -lt 0 ]; then
- echo "error code must be -4095 <= errno < 0" >&2
- exit 1
-fi
-
-prerequisite
-
-echo "Test scope: $ratio% hotplug memory"
-echo -e "\t online all hotplug memory in offline state"
-echo -e "\t offline $ratio% hotplug memory in online state"
-echo -e "\t online all hotplug memory in offline state"
-
-#
-# Online all hot-pluggable memory
-#
-for memory in `hotplaggable_offline_memory`; do
- echo offline-online $memory
- online_memory_expect_success $memory
-done
-
-#
-# Offline $ratio percent of hot-pluggable memory
-#
-for memory in `hotpluggable_online_memory`; do
- if [ $((RANDOM % 100)) -lt $ratio ]; then
- echo online-offline $memory
- offline_memory_expect_success $memory
- fi
-done
-
-#
-# Online all hot-pluggable memory again
-#
-for memory in `hotplaggable_offline_memory`; do
- echo offline-online $memory
- online_memory_expect_success $memory
-done
-
-#
-# Test with memory notifier error injection
-#
-
-DEBUGFS=`mount -t debugfs | head -1 | awk '{ print $3 }'`
-NOTIFIER_ERR_INJECT_DIR=$DEBUGFS/notifier-error-inject/memory
-
-prerequisite_extra()
-{
- msg="skip extra tests:"
-
- /sbin/modprobe -q -r memory-notifier-error-inject
- /sbin/modprobe -q memory-notifier-error-inject priority=$priority
-
- if [ ! -d "$DEBUGFS" ]; then
- echo $msg debugfs is not mounted >&2
- exit 0
- fi
-
- if [ ! -d $NOTIFIER_ERR_INJECT_DIR ]; then
- echo $msg memory-notifier-error-inject module is not available >&2
- exit 0
- fi
-}
-
-prerequisite_extra
-
-#
-# Offline $ratio percent of hot-pluggable memory
-#
-echo 0 > $NOTIFIER_ERR_INJECT_DIR/actions/MEM_GOING_OFFLINE/error
-for memory in `hotpluggable_online_memory`; do
- if [ $((RANDOM % 100)) -lt $ratio ]; then
- offline_memory_expect_success $memory
- fi
-done
-
-#
-# Test memory hot-add error handling (offline => online)
-#
-echo $error > $NOTIFIER_ERR_INJECT_DIR/actions/MEM_GOING_ONLINE/error
-for memory in `hotplaggable_offline_memory`; do
- online_memory_expect_fail $memory
-done
-
-#
-# Online all hot-pluggable memory
-#
-echo 0 > $NOTIFIER_ERR_INJECT_DIR/actions/MEM_GOING_ONLINE/error
-for memory in `hotplaggable_offline_memory`; do
- online_memory_expect_success $memory
-done
-
-#
-# Test memory hot-remove error handling (online => offline)
-#
-echo $error > $NOTIFIER_ERR_INJECT_DIR/actions/MEM_GOING_OFFLINE/error
-for memory in `hotpluggable_online_memory`; do
- offline_memory_expect_fail $memory
-done
-
-echo 0 > $NOTIFIER_ERR_INJECT_DIR/actions/MEM_GOING_OFFLINE/error
-/sbin/modprobe -q -r memory-notifier-error-inject
--- /dev/null
+unprivileged-remount-test
# Makefile for mount selftests.
-
+CFLAGS = -Wall \
+ -O2
all: unprivileged-remount-test
unprivileged-remount-test: unprivileged-remount-test.c
- gcc -Wall -O2 unprivileged-remount-test.c -o unprivileged-remount-test
+ $(CC) $(CFLAGS) unprivileged-remount-test.c -o unprivileged-remount-test
-# Allow specific tests to be selected.
-test_unprivileged_remount: unprivileged-remount-test
- @if [ -f /proc/self/uid_map ] ; then ./unprivileged-remount-test ; fi
+include ../lib.mk
-run_tests: all test_unprivileged_remount
+TEST_PROGS := unprivileged-remount-test
+override RUN_TESTS := if [ -f /proc/self/uid_map ] ; then ./unprivileged-remount-test ; fi
+override EMIT_TESTS := echo "$(RUN_TESTS)"
clean:
rm -f unprivileged-remount-test
-
-.PHONY: all test_unprivileged_remount
+CFLAGS = -O2
+
all:
- gcc -O2 mq_open_tests.c -o mq_open_tests -lrt
- gcc -O2 -o mq_perf_tests mq_perf_tests.c -lrt -lpthread -lpopt
+ $(CC) $(CFLAGS) mq_open_tests.c -o mq_open_tests -lrt
+ $(CC) $(CFLAGS) -o mq_perf_tests mq_perf_tests.c -lrt -lpthread -lpopt
+
+include ../lib.mk
+
+override define RUN_TESTS
+ @./mq_open_tests /test1 || echo "selftests: mq_open_tests [FAIL]"
+ @./mq_perf_tests || echo "selftests: mq_perf_tests [FAIL]"
+endef
+
+TEST_PROGS := mq_open_tests mq_perf_tests
-run_tests:
- @./mq_open_tests /test1 || echo "mq_open_tests: [FAIL]"
- @./mq_perf_tests || echo "mq_perf_tests: [FAIL]"
+override define EMIT_TESTS
+ echo "./mq_open_tests /test1 || echo \"selftests: mq_open_tests [FAIL]\""
+ echo "./mq_perf_tests || echo \"selftests: mq_perf_tests [FAIL]\""
+endef
clean:
rm -f mq_open_tests mq_perf_tests
# Makefile for net selftests
-CC = $(CROSS_COMPILE)gcc
CFLAGS = -Wall -O2 -g
CFLAGS += -I../../../../usr/include/
%: %.c
$(CC) $(CFLAGS) -o $@ $^
-run_tests: all
- @/bin/sh ./run_netsocktests || echo "sockettests: [FAIL]"
- @/bin/sh ./run_afpackettests || echo "afpackettests: [FAIL]"
- ./test_bpf.sh
+TEST_PROGS := run_netsocktests run_afpackettests test_bpf.sh
+TEST_FILES := $(NET_PROGS)
+
+include ../lib.mk
+
clean:
$(RM) $(NET_PROGS)
GIT_VERSION = $(shell git describe --always --long --dirty || echo "unknown")
-CC := $(CROSS_COMPILE)$(CC)
CFLAGS := -Wall -O2 -flto -Wall -Werror -DGIT_VERSION='"$(GIT_VERSION)"' -I$(CURDIR) $(CFLAGS)
-export CC CFLAGS
+export CFLAGS
TARGETS = pmu copyloops mm tm primitives stringloops
$(TARGETS):
$(MAKE) -k -C $@ all
-run_tests: all
+include ../lib.mk
+
+override define RUN_TESTS
@for TARGET in $(TARGETS); do \
$(MAKE) -C $$TARGET run_tests; \
done;
+endef
+
+override define INSTALL_RULE
+ @for TARGET in $(TARGETS); do \
+ $(MAKE) -C $$TARGET install; \
+ done;
+endef
+
+override define EMIT_TESTS
+ @for TARGET in $(TARGETS); do \
+ $(MAKE) -s -C $$TARGET emit_tests; \
+ done;
+endef
clean:
@for TARGET in $(TARGETS); do \
tags:
find . -name '*.c' -o -name '*.h' | xargs ctags
-.PHONY: all run_tests clean tags $(TARGETS)
+.PHONY: tags $(TARGETS)
# Use our CFLAGS for the implicit .S rule
ASFLAGS = $(CFLAGS)
-PROGS := copyuser_64 copyuser_power7 memcpy_64 memcpy_power7
+TEST_PROGS := copyuser_64 copyuser_power7 memcpy_64 memcpy_power7
EXTRA_SOURCES := validate.c ../harness.c
-all: $(PROGS)
+all: $(TEST_PROGS)
copyuser_64: CPPFLAGS += -D COPY_LOOP=test___copy_tofrom_user_base
copyuser_power7: CPPFLAGS += -D COPY_LOOP=test___copy_tofrom_user_power7
memcpy_64: CPPFLAGS += -D COPY_LOOP=test_memcpy
memcpy_power7: CPPFLAGS += -D COPY_LOOP=test_memcpy_power7
-$(PROGS): $(EXTRA_SOURCES)
+$(TEST_PROGS): $(EXTRA_SOURCES)
-run_tests: all
- @-for PROG in $(PROGS); do \
- ./$$PROG; \
- done;
+include ../../lib.mk
clean:
- rm -f $(PROGS) *.o
-
-.PHONY: all run_tests clean
+ rm -f $(TEST_PROGS) *.o
noarg:
$(MAKE) -C ../
-PROGS := hugetlb_vs_thp_test subpage_prot
+TEST_PROGS := hugetlb_vs_thp_test subpage_prot
-all: $(PROGS) tempfile
+all: $(TEST_PROGS) tempfile
-$(PROGS): ../harness.c
+$(TEST_PROGS): ../harness.c
-run_tests: all
- @-for PROG in $(PROGS); do \
- ./$$PROG; \
- done;
+include ../../lib.mk
tempfile:
dd if=/dev/zero of=tempfile bs=64k count=1
clean:
- rm -f $(PROGS) tempfile
-
-.PHONY: all run_tests clean
+ rm -f $(TEST_PROGS) tempfile
noarg:
$(MAKE) -C ../
-PROGS := count_instructions l3_bank_test per_event_excludes
+TEST_PROGS := count_instructions l3_bank_test per_event_excludes
EXTRA_SOURCES := ../harness.c event.c lib.c
-SUB_TARGETS = ebb
+all: $(TEST_PROGS) ebb
-all: $(PROGS) $(SUB_TARGETS)
-
-$(PROGS): $(EXTRA_SOURCES)
+$(TEST_PROGS): $(EXTRA_SOURCES)
# loop.S can only be built 64-bit
count_instructions: loop.S count_instructions.c $(EXTRA_SOURCES)
$(CC) $(CFLAGS) -m64 -o $@ $^
-run_tests: all sub_run_tests
- @-for PROG in $(PROGS); do \
- ./$$PROG; \
- done;
+include ../../lib.mk
-clean: sub_clean
- rm -f $(PROGS) loop.o
+DEFAULT_RUN_TESTS := $(RUN_TESTS)
+override define RUN_TESTS
+ $(DEFAULT_RUN_TESTS)
+ $(MAKE) -C ebb run_tests
+endef
-$(SUB_TARGETS):
- $(MAKE) -k -C $@ all
+DEFAULT_EMIT_TESTS := $(EMIT_TESTS)
+override define EMIT_TESTS
+ $(DEFAULT_EMIT_TESTS)
+ $(MAKE) -s -C ebb emit_tests
+endef
-sub_run_tests: all
- @for TARGET in $(SUB_TARGETS); do \
- $(MAKE) -C $$TARGET run_tests; \
- done;
+DEFAULT_INSTALL := $(INSTALL_RULE)
+override define INSTALL_RULE
+ $(DEFAULT_INSTALL_RULE)
+ $(MAKE) -C ebb install
+endef
-sub_clean:
- @for TARGET in $(SUB_TARGETS); do \
- $(MAKE) -C $$TARGET clean; \
- done;
+clean:
+ rm -f $(TEST_PROGS) loop.o
+ $(MAKE) -C ebb clean
+
+ebb:
+ $(MAKE) -k -C $@ all
-.PHONY: all run_tests clean sub_run_tests sub_clean $(SUB_TARGETS)
+.PHONY: all run_tests clean ebb
# The EBB handler is 64-bit code and everything links against it
CFLAGS += -m64
-PROGS := reg_access_test event_attributes_test cycles_test \
+TEST_PROGS := reg_access_test event_attributes_test cycles_test \
cycles_with_freeze_test pmc56_overflow_test \
ebb_vs_cpu_event_test cpu_event_vs_ebb_test \
cpu_event_pinned_vs_ebb_test task_event_vs_ebb_test \
lost_exception_test no_handler_test \
cycles_with_mmcr2_test
-all: $(PROGS)
+all: $(TEST_PROGS)
-$(PROGS): ../../harness.c ../event.c ../lib.c ebb.c ebb_handler.S trace.c busy_loop.S
+$(TEST_PROGS): ../../harness.c ../event.c ../lib.c ebb.c ebb_handler.S trace.c busy_loop.S
instruction_count_test: ../loop.S
lost_exception_test: ../lib.c
-run_tests: all
- @-for PROG in $(PROGS); do \
- ./$$PROG; \
- done;
+include ../../../lib.mk
clean:
- rm -f $(PROGS)
+ rm -f $(TEST_PROGS)
CFLAGS += -I$(CURDIR)
-PROGS := load_unaligned_zeropad
+TEST_PROGS := load_unaligned_zeropad
-all: $(PROGS)
+all: $(TEST_PROGS)
-$(PROGS): ../harness.c
+$(TEST_PROGS): ../harness.c
-run_tests: all
- @-for PROG in $(PROGS); do \
- ./$$PROG; \
- done;
+include ../../lib.mk
clean:
- rm -f $(PROGS) *.o
-
-.PHONY: all run_tests clean
+ rm -f $(TEST_PROGS) *.o
CFLAGS += -m64
CFLAGS += -I$(CURDIR)
-PROGS := memcmp
+TEST_PROGS := memcmp
EXTRA_SOURCES := memcmp_64.S ../harness.c
-all: $(PROGS)
+all: $(TEST_PROGS)
-$(PROGS): $(EXTRA_SOURCES)
+$(TEST_PROGS): $(EXTRA_SOURCES)
-run_tests: all
- @-for PROG in $(PROGS); do \
- ./$$PROG; \
- done;
+include ../../lib.mk
clean:
- rm -f $(PROGS) *.o
-
-.PHONY: all run_tests clean
+ rm -f $(TEST_PROGS) *.o
-PROGS := tm-resched-dscr
+TEST_PROGS := tm-resched-dscr
-all: $(PROGS)
+all: $(TEST_PROGS)
-$(PROGS): ../harness.c
+$(TEST_PROGS): ../harness.c
-run_tests: all
- @-for PROG in $(PROGS); do \
- ./$$PROG; \
- done;
+include ../../lib.mk
clean:
- rm -f $(PROGS) *.o
-
-.PHONY: all run_tests clean
+ rm -f $(TEST_PROGS) *.o
clean:
rm -f peeksiginfo
-run_tests: all
- @./peeksiginfo || echo "peeksiginfo selftests: [FAIL]"
+TEST_PROGS := peeksiginfo
+
+include ../lib.mk
-CC = $(CROSS_COMPILE)gcc
-
all: get_size
get_size: get_size.c
$(CC) -static -ffreestanding -nostartfiles -s $< -o $@
-run_tests: all
- ./get_size
+TEST_PROGS := get_size
+
+include ../lib.mk
clean:
$(RM) get_size
# No binaries, but make sure arg-less "make" doesn't trigger "run_tests".
all:
-# Allow specific tests to be selected.
-test_num:
- @/bin/sh ./run_numerictests
+TEST_PROGS := run_numerictests run_stringtests
+TEST_FILES := common_tests
-test_string:
- @/bin/sh ./run_stringtests
-
-run_tests: all test_num test_string
+include ../lib.mk
# Nothing to clean up.
clean:
-
-.PHONY: all run_tests clean test_num test_string
-all:
- gcc posix_timers.c -o posix_timers -lrt
+CC = $(CROSS_COMPILE)gcc
+BUILD_FLAGS = -DKTEST
+CFLAGS += -O3 -Wl,-no-as-needed -Wall $(BUILD_FLAGS)
+LDFLAGS += -lrt -lpthread
-run_tests: all
- ./posix_timers
+# these are all "safe" tests that don't modify
+# system time or require escalated privledges
+TEST_PROGS = posix_timers nanosleep nsleep-lat set-timer-lat mqueue-lat \
+ inconsistency-check raw_skew threadtest rtctest
+
+TEST_PROGS_EXTENDED = alarmtimer-suspend valid-adjtimex change_skew \
+ skew_consistency clocksource-switch leap-a-day \
+ leapcrash set-tai set-2038
+
+bins = $(TEST_PROGS) $(TEST_PROGS_EXTENDED)
+
+all: ${bins}
+
+include ../lib.mk
+
+# these tests require escalated privledges
+# and may modify the system time or trigger
+# other behavior like suspend
+run_destructive_tests: run_tests
+ ./alarmtimer-suspend
+ ./valid-adjtimex
+ ./change_skew
+ ./skew_consistency
+ ./clocksource-switch
+ ./leap-a-day -s -i 10
+ ./leapcrash
+ ./set-tai
+ ./set-2038
clean:
- rm -f ./posix_timers
+ rm -f ${bins}
--- /dev/null
+/* alarmtimer suspend test
+ * John Stultz (john.stultz@linaro.org)
+ * (C) Copyright Linaro 2013
+ * Licensed under the GPLv2
+ *
+ * This test makes sure the alarmtimer & RTC wakeup code is
+ * functioning.
+ *
+ * To build:
+ * $ gcc alarmtimer-suspend.c -o alarmtimer-suspend -lrt
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+
+#include <stdio.h>
+#include <unistd.h>
+#include <time.h>
+#include <string.h>
+#include <signal.h>
+#include <stdlib.h>
+#include <pthread.h>
+#ifdef KTEST
+#include "../kselftest.h"
+#else
+static inline int ksft_exit_pass(void)
+{
+ exit(0);
+}
+static inline int ksft_exit_fail(void)
+{
+ exit(1);
+}
+#endif
+
+#define CLOCK_REALTIME 0
+#define CLOCK_MONOTONIC 1
+#define CLOCK_PROCESS_CPUTIME_ID 2
+#define CLOCK_THREAD_CPUTIME_ID 3
+#define CLOCK_MONOTONIC_RAW 4
+#define CLOCK_REALTIME_COARSE 5
+#define CLOCK_MONOTONIC_COARSE 6
+#define CLOCK_BOOTTIME 7
+#define CLOCK_REALTIME_ALARM 8
+#define CLOCK_BOOTTIME_ALARM 9
+#define CLOCK_HWSPECIFIC 10
+#define CLOCK_TAI 11
+#define NR_CLOCKIDS 12
+
+
+#define NSEC_PER_SEC 1000000000ULL
+#define UNREASONABLE_LAT (NSEC_PER_SEC * 4) /* hopefully we resume in 4secs */
+
+#define SUSPEND_SECS 15
+int alarmcount;
+int alarm_clock_id;
+struct timespec start_time;
+
+
+char *clockstring(int clockid)
+{
+ switch (clockid) {
+ case CLOCK_REALTIME:
+ return "CLOCK_REALTIME";
+ case CLOCK_MONOTONIC:
+ return "CLOCK_MONOTONIC";
+ case CLOCK_PROCESS_CPUTIME_ID:
+ return "CLOCK_PROCESS_CPUTIME_ID";
+ case CLOCK_THREAD_CPUTIME_ID:
+ return "CLOCK_THREAD_CPUTIME_ID";
+ case CLOCK_MONOTONIC_RAW:
+ return "CLOCK_MONOTONIC_RAW";
+ case CLOCK_REALTIME_COARSE:
+ return "CLOCK_REALTIME_COARSE";
+ case CLOCK_MONOTONIC_COARSE:
+ return "CLOCK_MONOTONIC_COARSE";
+ case CLOCK_BOOTTIME:
+ return "CLOCK_BOOTTIME";
+ case CLOCK_REALTIME_ALARM:
+ return "CLOCK_REALTIME_ALARM";
+ case CLOCK_BOOTTIME_ALARM:
+ return "CLOCK_BOOTTIME_ALARM";
+ case CLOCK_TAI:
+ return "CLOCK_TAI";
+ };
+ return "UNKNOWN_CLOCKID";
+}
+
+
+long long timespec_sub(struct timespec a, struct timespec b)
+{
+ long long ret = NSEC_PER_SEC * b.tv_sec + b.tv_nsec;
+
+ ret -= NSEC_PER_SEC * a.tv_sec + a.tv_nsec;
+ return ret;
+}
+
+int final_ret = 0;
+
+void sigalarm(int signo)
+{
+ long long delta_ns;
+ struct timespec ts;
+
+ clock_gettime(alarm_clock_id, &ts);
+ alarmcount++;
+
+ delta_ns = timespec_sub(start_time, ts);
+ delta_ns -= NSEC_PER_SEC * SUSPEND_SECS * alarmcount;
+
+ printf("ALARM(%i): %ld:%ld latency: %lld ns ", alarmcount, ts.tv_sec,
+ ts.tv_nsec, delta_ns);
+
+ if (delta_ns > UNREASONABLE_LAT) {
+ printf("[FAIL]\n");
+ final_ret = -1;
+ } else
+ printf("[OK]\n");
+
+}
+
+int main(void)
+{
+ timer_t tm1;
+ struct itimerspec its1, its2;
+ struct sigevent se;
+ struct sigaction act;
+ int signum = SIGRTMAX;
+
+ /* Set up signal handler: */
+ sigfillset(&act.sa_mask);
+ act.sa_flags = 0;
+ act.sa_handler = sigalarm;
+ sigaction(signum, &act, NULL);
+
+ /* Set up timer: */
+ memset(&se, 0, sizeof(se));
+ se.sigev_notify = SIGEV_SIGNAL;
+ se.sigev_signo = signum;
+ se.sigev_value.sival_int = 0;
+
+ for (alarm_clock_id = CLOCK_REALTIME_ALARM;
+ alarm_clock_id <= CLOCK_BOOTTIME_ALARM;
+ alarm_clock_id++) {
+
+ alarmcount = 0;
+ timer_create(alarm_clock_id, &se, &tm1);
+
+ clock_gettime(alarm_clock_id, &start_time);
+ printf("Start time (%s): %ld:%ld\n", clockstring(alarm_clock_id),
+ start_time.tv_sec, start_time.tv_nsec);
+ printf("Setting alarm for every %i seconds\n", SUSPEND_SECS);
+ its1.it_value = start_time;
+ its1.it_value.tv_sec += SUSPEND_SECS;
+ its1.it_interval.tv_sec = SUSPEND_SECS;
+ its1.it_interval.tv_nsec = 0;
+
+ timer_settime(tm1, TIMER_ABSTIME, &its1, &its2);
+
+ while (alarmcount < 5)
+ sleep(1); /* First 5 alarms, do nothing */
+
+ printf("Starting suspend loops\n");
+ while (alarmcount < 10) {
+ int ret;
+
+ sleep(1);
+ ret = system("echo mem > /sys/power/state");
+ if (ret)
+ break;
+ }
+ timer_delete(tm1);
+ }
+ if (final_ret)
+ return ksft_exit_fail();
+ return ksft_exit_pass();
+}
--- /dev/null
+/* ADJ_FREQ Skew change test
+ * by: john stultz (johnstul@us.ibm.com)
+ * (C) Copyright IBM 2012
+ * Licensed under the GPLv2
+ *
+ * NOTE: This is a meta-test which cranks the ADJ_FREQ knob and
+ * then uses other tests to detect problems. Thus this test requires
+ * that the raw_skew, inconsistency-check and nanosleep tests be
+ * present in the same directory it is run from.
+ *
+ * To build:
+ * $ gcc change_skew.c -o change_skew -lrt
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/time.h>
+#include <sys/timex.h>
+#include <time.h>
+#ifdef KTEST
+#include "../kselftest.h"
+#else
+static inline int ksft_exit_pass(void)
+{
+ exit(0);
+}
+static inline int ksft_exit_fail(void)
+{
+ exit(1);
+}
+#endif
+
+#define NSEC_PER_SEC 1000000000LL
+
+
+int change_skew_test(int ppm)
+{
+ struct timex tx;
+ int ret;
+
+ tx.modes = ADJ_FREQUENCY;
+ tx.freq = ppm << 16;
+
+ ret = adjtimex(&tx);
+ if (ret < 0) {
+ printf("Error adjusting freq\n");
+ return ret;
+ }
+
+ ret = system("./raw_skew");
+ ret |= system("./inconsistency-check");
+ ret |= system("./nanosleep");
+
+ return ret;
+}
+
+
+int main(int argv, char **argc)
+{
+ struct timex tx;
+ int i, ret;
+
+ int ppm[5] = {0, 250, 500, -250, -500};
+
+ /* Kill ntpd */
+ ret = system("killall -9 ntpd");
+
+ /* Make sure there's no offset adjustment going on */
+ tx.modes = ADJ_OFFSET;
+ tx.offset = 0;
+ ret = adjtimex(&tx);
+
+ if (ret < 0) {
+ printf("Maybe you're not running as root?\n");
+ return -1;
+ }
+
+ for (i = 0; i < 5; i++) {
+ printf("Using %i ppm adjustment\n", ppm[i]);
+ ret = change_skew_test(ppm[i]);
+ if (ret)
+ break;
+ }
+
+ /* Set things back */
+ tx.modes = ADJ_FREQUENCY;
+ tx.offset = 0;
+ adjtimex(&tx);
+
+ if (ret) {
+ printf("[FAIL]");
+ return ksft_exit_fail();
+ }
+ printf("[OK]");
+ return ksft_exit_pass();
+}
--- /dev/null
+/* Clocksource change test
+ * by: john stultz (johnstul@us.ibm.com)
+ * (C) Copyright IBM 2012
+ * Licensed under the GPLv2
+ *
+ * NOTE: This is a meta-test which quickly changes the clocksourc and
+ * then uses other tests to detect problems. Thus this test requires
+ * that the inconsistency-check and nanosleep tests be present in the
+ * same directory it is run from.
+ *
+ * To build:
+ * $ gcc clocksource-switch.c -o clocksource-switch -lrt
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <sys/time.h>
+#include <sys/timex.h>
+#include <time.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <string.h>
+#include <sys/wait.h>
+#ifdef KTEST
+#include "../kselftest.h"
+#else
+static inline int ksft_exit_pass(void)
+{
+ exit(0);
+}
+static inline int ksft_exit_fail(void)
+{
+ exit(1);
+}
+#endif
+
+
+int get_clocksources(char list[][30])
+{
+ int fd, i;
+ size_t size;
+ char buf[512];
+ char *head, *tmp;
+
+ fd = open("/sys/devices/system/clocksource/clocksource0/available_clocksource", O_RDONLY);
+
+ size = read(fd, buf, 512);
+
+ close(fd);
+
+ for (i = 0; i < 30; i++)
+ list[i][0] = '\0';
+
+ head = buf;
+ i = 0;
+ while (head - buf < size) {
+ /* Find the next space */
+ for (tmp = head; *tmp != ' '; tmp++) {
+ if (*tmp == '\n')
+ break;
+ if (*tmp == '\0')
+ break;
+ }
+ *tmp = '\0';
+ strcpy(list[i], head);
+ head = tmp + 1;
+ i++;
+ }
+
+ return i-1;
+}
+
+int get_cur_clocksource(char *buf, size_t size)
+{
+ int fd;
+
+ fd = open("/sys/devices/system/clocksource/clocksource0/current_clocksource", O_RDONLY);
+
+ size = read(fd, buf, size);
+
+ return 0;
+}
+
+int change_clocksource(char *clocksource)
+{
+ int fd;
+ size_t size;
+
+ fd = open("/sys/devices/system/clocksource/clocksource0/current_clocksource", O_WRONLY);
+
+ if (fd < 0)
+ return -1;
+
+ size = write(fd, clocksource, strlen(clocksource));
+
+ if (size < 0)
+ return -1;
+
+ close(fd);
+ return 0;
+}
+
+
+int run_tests(int secs)
+{
+ int ret;
+ char buf[255];
+
+ sprintf(buf, "./inconsistency-check -t %i", secs);
+ ret = system(buf);
+ if (ret)
+ return ret;
+ ret = system("./nanosleep");
+ return ret;
+}
+
+
+char clocksource_list[10][30];
+
+int main(int argv, char **argc)
+{
+ char orig_clk[512];
+ int count, i, status;
+ pid_t pid;
+
+ get_cur_clocksource(orig_clk, 512);
+
+ count = get_clocksources(clocksource_list);
+
+ if (change_clocksource(clocksource_list[0])) {
+ printf("Error: You probably need to run this as root\n");
+ return -1;
+ }
+
+ /* Check everything is sane before we start switching asyncrhonously */
+ for (i = 0; i < count; i++) {
+ printf("Validating clocksource %s\n", clocksource_list[i]);
+ if (change_clocksource(clocksource_list[i])) {
+ status = -1;
+ goto out;
+ }
+ if (run_tests(5)) {
+ status = -1;
+ goto out;
+ }
+ }
+
+
+ printf("Running Asyncrhonous Switching Tests...\n");
+ pid = fork();
+ if (!pid)
+ return run_tests(60);
+
+ while (pid != waitpid(pid, &status, WNOHANG))
+ for (i = 0; i < count; i++)
+ if (change_clocksource(clocksource_list[i])) {
+ status = -1;
+ goto out;
+ }
+out:
+ change_clocksource(orig_clk);
+
+ if (status)
+ return ksft_exit_fail();
+ return ksft_exit_pass();
+}
--- /dev/null
+/* Time inconsistency check test
+ * by: john stultz (johnstul@us.ibm.com)
+ * (C) Copyright IBM 2003, 2004, 2005, 2012
+ * (C) Copyright Linaro Limited 2015
+ * Licensed under the GPLv2
+ *
+ * To build:
+ * $ gcc inconsistency-check.c -o inconsistency-check -lrt
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+
+
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <time.h>
+#include <sys/time.h>
+#include <sys/timex.h>
+#include <string.h>
+#include <signal.h>
+#ifdef KTEST
+#include "../kselftest.h"
+#else
+static inline int ksft_exit_pass(void)
+{
+ exit(0);
+}
+static inline int ksft_exit_fail(void)
+{
+ exit(1);
+}
+#endif
+
+#define CALLS_PER_LOOP 64
+#define NSEC_PER_SEC 1000000000ULL
+
+#define CLOCK_REALTIME 0
+#define CLOCK_MONOTONIC 1
+#define CLOCK_PROCESS_CPUTIME_ID 2
+#define CLOCK_THREAD_CPUTIME_ID 3
+#define CLOCK_MONOTONIC_RAW 4
+#define CLOCK_REALTIME_COARSE 5
+#define CLOCK_MONOTONIC_COARSE 6
+#define CLOCK_BOOTTIME 7
+#define CLOCK_REALTIME_ALARM 8
+#define CLOCK_BOOTTIME_ALARM 9
+#define CLOCK_HWSPECIFIC 10
+#define CLOCK_TAI 11
+#define NR_CLOCKIDS 12
+
+char *clockstring(int clockid)
+{
+ switch (clockid) {
+ case CLOCK_REALTIME:
+ return "CLOCK_REALTIME";
+ case CLOCK_MONOTONIC:
+ return "CLOCK_MONOTONIC";
+ case CLOCK_PROCESS_CPUTIME_ID:
+ return "CLOCK_PROCESS_CPUTIME_ID";
+ case CLOCK_THREAD_CPUTIME_ID:
+ return "CLOCK_THREAD_CPUTIME_ID";
+ case CLOCK_MONOTONIC_RAW:
+ return "CLOCK_MONOTONIC_RAW";
+ case CLOCK_REALTIME_COARSE:
+ return "CLOCK_REALTIME_COARSE";
+ case CLOCK_MONOTONIC_COARSE:
+ return "CLOCK_MONOTONIC_COARSE";
+ case CLOCK_BOOTTIME:
+ return "CLOCK_BOOTTIME";
+ case CLOCK_REALTIME_ALARM:
+ return "CLOCK_REALTIME_ALARM";
+ case CLOCK_BOOTTIME_ALARM:
+ return "CLOCK_BOOTTIME_ALARM";
+ case CLOCK_TAI:
+ return "CLOCK_TAI";
+ };
+ return "UNKNOWN_CLOCKID";
+}
+
+/* returns 1 if a <= b, 0 otherwise */
+static inline int in_order(struct timespec a, struct timespec b)
+{
+ /* use unsigned to avoid false positives on 2038 rollover */
+ if ((unsigned long)a.tv_sec < (unsigned long)b.tv_sec)
+ return 1;
+ if ((unsigned long)a.tv_sec > (unsigned long)b.tv_sec)
+ return 0;
+ if (a.tv_nsec > b.tv_nsec)
+ return 0;
+ return 1;
+}
+
+
+
+int consistency_test(int clock_type, unsigned long seconds)
+{
+ struct timespec list[CALLS_PER_LOOP];
+ int i, inconsistent;
+ long now, then;
+ time_t t;
+ char *start_str;
+
+ clock_gettime(clock_type, &list[0]);
+ now = then = list[0].tv_sec;
+
+ /* timestamp start of test */
+ t = time(0);
+ start_str = ctime(&t);
+
+ while (seconds == -1 || now - then < seconds) {
+ inconsistent = 0;
+
+ /* Fill list */
+ for (i = 0; i < CALLS_PER_LOOP; i++)
+ clock_gettime(clock_type, &list[i]);
+
+ /* Check for inconsistencies */
+ for (i = 0; i < CALLS_PER_LOOP - 1; i++)
+ if (!in_order(list[i], list[i+1]))
+ inconsistent = i;
+
+ /* display inconsistency */
+ if (inconsistent) {
+ unsigned long long delta;
+
+ printf("\%s\n", start_str);
+ for (i = 0; i < CALLS_PER_LOOP; i++) {
+ if (i == inconsistent)
+ printf("--------------------\n");
+ printf("%lu:%lu\n", list[i].tv_sec,
+ list[i].tv_nsec);
+ if (i == inconsistent + 1)
+ printf("--------------------\n");
+ }
+ delta = list[inconsistent].tv_sec * NSEC_PER_SEC;
+ delta += list[inconsistent].tv_nsec;
+ delta -= list[inconsistent+1].tv_sec * NSEC_PER_SEC;
+ delta -= list[inconsistent+1].tv_nsec;
+ printf("Delta: %llu ns\n", delta);
+ fflush(0);
+ /* timestamp inconsistency*/
+ t = time(0);
+ printf("%s\n", ctime(&t));
+ printf("[FAILED]\n");
+ return -1;
+ }
+ now = list[0].tv_sec;
+ }
+ printf("[OK]\n");
+ return 0;
+}
+
+
+int main(int argc, char *argv[])
+{
+ int clockid, opt;
+ int userclock = CLOCK_REALTIME;
+ int maxclocks = NR_CLOCKIDS;
+ int runtime = 10;
+ struct timespec ts;
+
+ /* Process arguments */
+ while ((opt = getopt(argc, argv, "t:c:")) != -1) {
+ switch (opt) {
+ case 't':
+ runtime = atoi(optarg);
+ break;
+ case 'c':
+ userclock = atoi(optarg);
+ maxclocks = userclock + 1;
+ break;
+ default:
+ printf("Usage: %s [-t <secs>] [-c <clockid>]\n", argv[0]);
+ printf(" -t: Number of seconds to run\n");
+ printf(" -c: clockid to use (default, all clockids)\n");
+ exit(-1);
+ }
+ }
+
+ setbuf(stdout, NULL);
+
+ for (clockid = userclock; clockid < maxclocks; clockid++) {
+
+ if (clockid == CLOCK_HWSPECIFIC)
+ continue;
+
+ if (!clock_gettime(clockid, &ts)) {
+ printf("Consistent %-30s ", clockstring(clockid));
+ if (consistency_test(clockid, runtime))
+ return ksft_exit_fail();
+ }
+ }
+ return ksft_exit_pass();
+}
--- /dev/null
+/* Leap second stress test
+ * by: John Stultz (john.stultz@linaro.org)
+ * (C) Copyright IBM 2012
+ * (C) Copyright 2013, 2015 Linaro Limited
+ * Licensed under the GPLv2
+ *
+ * This test signals the kernel to insert a leap second
+ * every day at midnight GMT. This allows for stessing the
+ * kernel's leap-second behavior, as well as how well applications
+ * handle the leap-second discontinuity.
+ *
+ * Usage: leap-a-day [-s] [-i <num>]
+ *
+ * Options:
+ * -s: Each iteration, set the date to 10 seconds before midnight GMT.
+ * This speeds up the number of leapsecond transitions tested,
+ * but because it calls settimeofday frequently, advancing the
+ * time by 24 hours every ~16 seconds, it may cause application
+ * disruption.
+ *
+ * -i: Number of iterations to run (default: infinite)
+ *
+ * Other notes: Disabling NTP prior to running this is advised, as the two
+ * may conflict in their commands to the kernel.
+ *
+ * To build:
+ * $ gcc leap-a-day.c -o leap-a-day -lrt
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <sys/time.h>
+#include <sys/timex.h>
+#include <string.h>
+#include <signal.h>
+#include <unistd.h>
+#ifdef KTEST
+#include "../kselftest.h"
+#else
+static inline int ksft_exit_pass(void)
+{
+ exit(0);
+}
+static inline int ksft_exit_fail(void)
+{
+ exit(1);
+}
+#endif
+
+#define NSEC_PER_SEC 1000000000ULL
+#define CLOCK_TAI 11
+
+/* returns 1 if a <= b, 0 otherwise */
+static inline int in_order(struct timespec a, struct timespec b)
+{
+ if (a.tv_sec < b.tv_sec)
+ return 1;
+ if (a.tv_sec > b.tv_sec)
+ return 0;
+ if (a.tv_nsec > b.tv_nsec)
+ return 0;
+ return 1;
+}
+
+struct timespec timespec_add(struct timespec ts, unsigned long long ns)
+{
+ ts.tv_nsec += ns;
+ while (ts.tv_nsec >= NSEC_PER_SEC) {
+ ts.tv_nsec -= NSEC_PER_SEC;
+ ts.tv_sec++;
+ }
+ return ts;
+}
+
+char *time_state_str(int state)
+{
+ switch (state) {
+ case TIME_OK: return "TIME_OK";
+ case TIME_INS: return "TIME_INS";
+ case TIME_DEL: return "TIME_DEL";
+ case TIME_OOP: return "TIME_OOP";
+ case TIME_WAIT: return "TIME_WAIT";
+ case TIME_BAD: return "TIME_BAD";
+ }
+ return "ERROR";
+}
+
+/* clear NTP time_status & time_state */
+int clear_time_state(void)
+{
+ struct timex tx;
+ int ret;
+
+ /*
+ * We have to call adjtime twice here, as kernels
+ * prior to 6b1859dba01c7 (included in 3.5 and
+ * -stable), had an issue with the state machine
+ * and wouldn't clear the STA_INS/DEL flag directly.
+ */
+ tx.modes = ADJ_STATUS;
+ tx.status = STA_PLL;
+ ret = adjtimex(&tx);
+
+ /* Clear maxerror, as it can cause UNSYNC to be set */
+ tx.modes = ADJ_MAXERROR;
+ tx.maxerror = 0;
+ ret = adjtimex(&tx);
+
+ /* Clear the status */
+ tx.modes = ADJ_STATUS;
+ tx.status = 0;
+ ret = adjtimex(&tx);
+
+ return ret;
+}
+
+/* Make sure we cleanup on ctrl-c */
+void handler(int unused)
+{
+ clear_time_state();
+ exit(0);
+}
+
+/* Test for known hrtimer failure */
+void test_hrtimer_failure(void)
+{
+ struct timespec now, target;
+
+ clock_gettime(CLOCK_REALTIME, &now);
+ target = timespec_add(now, NSEC_PER_SEC/2);
+ clock_nanosleep(CLOCK_REALTIME, TIMER_ABSTIME, &target, NULL);
+ clock_gettime(CLOCK_REALTIME, &now);
+
+ if (!in_order(target, now))
+ printf("ERROR: hrtimer early expiration failure observed.\n");
+}
+
+int main(int argc, char **argv)
+{
+ int settime = 0;
+ int tai_time = 0;
+ int insert = 1;
+ int iterations = -1;
+ int opt;
+
+ /* Process arguments */
+ while ((opt = getopt(argc, argv, "sti:")) != -1) {
+ switch (opt) {
+ case 's':
+ printf("Setting time to speed up testing\n");
+ settime = 1;
+ break;
+ case 'i':
+ iterations = atoi(optarg);
+ break;
+ case 't':
+ tai_time = 1;
+ break;
+ default:
+ printf("Usage: %s [-s] [-i <iterations>]\n", argv[0]);
+ printf(" -s: Set time to right before leap second each iteration\n");
+ printf(" -i: Number of iterations\n");
+ printf(" -t: Print TAI time\n");
+ exit(-1);
+ }
+ }
+
+ /* Make sure TAI support is present if -t was used */
+ if (tai_time) {
+ struct timespec ts;
+
+ if (clock_gettime(CLOCK_TAI, &ts)) {
+ printf("System doesn't support CLOCK_TAI\n");
+ ksft_exit_fail();
+ }
+ }
+
+ signal(SIGINT, handler);
+ signal(SIGKILL, handler);
+
+ if (iterations < 0)
+ printf("This runs continuously. Press ctrl-c to stop\n");
+ else
+ printf("Running for %i iterations. Press ctrl-c to stop\n", iterations);
+
+ printf("\n");
+ while (1) {
+ int ret;
+ struct timespec ts;
+ struct timex tx;
+ time_t now, next_leap;
+
+ /* Get the current time */
+ clock_gettime(CLOCK_REALTIME, &ts);
+
+ /* Calculate the next possible leap second 23:59:60 GMT */
+ next_leap = ts.tv_sec;
+ next_leap += 86400 - (next_leap % 86400);
+
+ if (settime) {
+ struct timeval tv;
+
+ tv.tv_sec = next_leap - 10;
+ tv.tv_usec = 0;
+ settimeofday(&tv, NULL);
+ printf("Setting time to %s", ctime(&tv.tv_sec));
+ }
+
+ /* Reset NTP time state */
+ clear_time_state();
+
+ /* Set the leap second insert flag */
+ tx.modes = ADJ_STATUS;
+ if (insert)
+ tx.status = STA_INS;
+ else
+ tx.status = STA_DEL;
+ ret = adjtimex(&tx);
+ if (ret < 0) {
+ printf("Error: Problem setting STA_INS/STA_DEL!: %s\n",
+ time_state_str(ret));
+ return ksft_exit_fail();
+ }
+
+ /* Validate STA_INS was set */
+ tx.modes = 0;
+ ret = adjtimex(&tx);
+ if (tx.status != STA_INS && tx.status != STA_DEL) {
+ printf("Error: STA_INS/STA_DEL not set!: %s\n",
+ time_state_str(ret));
+ return ksft_exit_fail();
+ }
+
+ if (tai_time) {
+ printf("Using TAI time,"
+ " no inconsistencies should be seen!\n");
+ }
+
+ printf("Scheduling leap second for %s", ctime(&next_leap));
+
+ /* Wake up 3 seconds before leap */
+ ts.tv_sec = next_leap - 3;
+ ts.tv_nsec = 0;
+
+ while (clock_nanosleep(CLOCK_REALTIME, TIMER_ABSTIME, &ts, NULL))
+ printf("Something woke us up, returning to sleep\n");
+
+ /* Validate STA_INS is still set */
+ tx.modes = 0;
+ ret = adjtimex(&tx);
+ if (tx.status != STA_INS && tx.status != STA_DEL) {
+ printf("Something cleared STA_INS/STA_DEL, setting it again.\n");
+ tx.modes = ADJ_STATUS;
+ if (insert)
+ tx.status = STA_INS;
+ else
+ tx.status = STA_DEL;
+ ret = adjtimex(&tx);
+ }
+
+ /* Check adjtimex output every half second */
+ now = tx.time.tv_sec;
+ while (now < next_leap + 2) {
+ char buf[26];
+ struct timespec tai;
+
+ tx.modes = 0;
+ ret = adjtimex(&tx);
+
+ if (tai_time) {
+ clock_gettime(CLOCK_TAI, &tai);
+ printf("%ld sec, %9ld ns\t%s\n",
+ tai.tv_sec,
+ tai.tv_nsec,
+ time_state_str(ret));
+ } else {
+ ctime_r(&tx.time.tv_sec, buf);
+ buf[strlen(buf)-1] = 0; /*remove trailing\n */
+
+ printf("%s + %6ld us (%i)\t%s\n",
+ buf,
+ tx.time.tv_usec,
+ tx.tai,
+ time_state_str(ret));
+ }
+ now = tx.time.tv_sec;
+ /* Sleep for another half second */
+ ts.tv_sec = 0;
+ ts.tv_nsec = NSEC_PER_SEC / 2;
+ clock_nanosleep(CLOCK_MONOTONIC, 0, &ts, NULL);
+ }
+ /* Switch to using other mode */
+ insert = !insert;
+
+ /* Note if kernel has known hrtimer failure */
+ test_hrtimer_failure();
+
+ printf("Leap complete\n\n");
+
+ if ((iterations != -1) && !(--iterations))
+ break;
+ }
+
+ clear_time_state();
+ return ksft_exit_pass();
+}
--- /dev/null
+/* Demo leapsecond deadlock
+ * by: John Stultz (john.stultz@linaro.org)
+ * (C) Copyright IBM 2012
+ * (C) Copyright 2013, 2015 Linaro Limited
+ * Licensed under the GPL
+ *
+ * This test demonstrates leapsecond deadlock that is possibe
+ * on kernels from 2.6.26 to 3.3.
+ *
+ * WARNING: THIS WILL LIKELY HARDHANG SYSTEMS AND MAY LOSE DATA
+ * RUN AT YOUR OWN RISK!
+ * To build:
+ * $ gcc leapcrash.c -o leapcrash -lrt
+ */
+
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <sys/time.h>
+#include <sys/timex.h>
+#include <string.h>
+#include <signal.h>
+#ifdef KTEST
+#include "../kselftest.h"
+#else
+static inline int ksft_exit_pass(void)
+{
+ exit(0);
+}
+static inline int ksft_exit_fail(void)
+{
+ exit(1);
+}
+#endif
+
+
+
+/* clear NTP time_status & time_state */
+int clear_time_state(void)
+{
+ struct timex tx;
+ int ret;
+
+ /*
+ * We have to call adjtime twice here, as kernels
+ * prior to 6b1859dba01c7 (included in 3.5 and
+ * -stable), had an issue with the state machine
+ * and wouldn't clear the STA_INS/DEL flag directly.
+ */
+ tx.modes = ADJ_STATUS;
+ tx.status = STA_PLL;
+ ret = adjtimex(&tx);
+
+ tx.modes = ADJ_STATUS;
+ tx.status = 0;
+ ret = adjtimex(&tx);
+
+ return ret;
+}
+
+/* Make sure we cleanup on ctrl-c */
+void handler(int unused)
+{
+ clear_time_state();
+ exit(0);
+}
+
+
+int main(void)
+{
+ struct timex tx;
+ struct timespec ts;
+ time_t next_leap;
+ int count = 0;
+
+ setbuf(stdout, NULL);
+
+ signal(SIGINT, handler);
+ signal(SIGKILL, handler);
+ printf("This runs for a few minutes. Press ctrl-c to stop\n");
+
+ clear_time_state();
+
+
+ /* Get the current time */
+ clock_gettime(CLOCK_REALTIME, &ts);
+
+ /* Calculate the next possible leap second 23:59:60 GMT */
+ next_leap = ts.tv_sec;
+ next_leap += 86400 - (next_leap % 86400);
+
+ for (count = 0; count < 20; count++) {
+ struct timeval tv;
+
+
+ /* set the time to 2 seconds before the leap */
+ tv.tv_sec = next_leap - 2;
+ tv.tv_usec = 0;
+ if (settimeofday(&tv, NULL)) {
+ printf("Error: You're likely not running with proper (ie: root) permissions\n");
+ return ksft_exit_fail();
+ }
+ tx.modes = 0;
+ adjtimex(&tx);
+
+ /* hammer on adjtime w/ STA_INS */
+ while (tx.time.tv_sec < next_leap + 1) {
+ /* Set the leap second insert flag */
+ tx.modes = ADJ_STATUS;
+ tx.status = STA_INS;
+ adjtimex(&tx);
+ }
+ clear_time_state();
+ printf(".");
+ }
+ printf("[OK]\n");
+ return ksft_exit_pass();
+}
--- /dev/null
+/* Measure mqueue timeout latency
+ * by: john stultz (john.stultz@linaro.org)
+ * (C) Copyright Linaro 2013
+ *
+ * Inspired with permission from example test by:
+ * Romain Francoise <romain@orebokech.com>
+ * Licensed under the GPLv2
+ *
+ * To build:
+ * $ gcc mqueue-lat.c -o mqueue-lat -lrt
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <sys/time.h>
+#include <sys/timex.h>
+#include <string.h>
+#include <signal.h>
+#include <errno.h>
+#include <mqueue.h>
+#ifdef KTEST
+#include "../kselftest.h"
+#else
+static inline int ksft_exit_pass(void)
+{
+ exit(0);
+}
+static inline int ksft_exit_fail(void)
+{
+ exit(1);
+}
+#endif
+
+#define NSEC_PER_SEC 1000000000ULL
+
+#define TARGET_TIMEOUT 100000000 /* 100ms in nanoseconds */
+#define UNRESONABLE_LATENCY 40000000 /* 40ms in nanosecs */
+
+
+long long timespec_sub(struct timespec a, struct timespec b)
+{
+ long long ret = NSEC_PER_SEC * b.tv_sec + b.tv_nsec;
+
+ ret -= NSEC_PER_SEC * a.tv_sec + a.tv_nsec;
+ return ret;
+}
+
+struct timespec timespec_add(struct timespec ts, unsigned long long ns)
+{
+ ts.tv_nsec += ns;
+ while (ts.tv_nsec >= NSEC_PER_SEC) {
+ ts.tv_nsec -= NSEC_PER_SEC;
+ ts.tv_sec++;
+ }
+ return ts;
+}
+
+int mqueue_lat_test(void)
+{
+
+ mqd_t q;
+ struct mq_attr attr;
+ struct timespec start, end, now, target;
+ int i, count, ret;
+
+ q = mq_open("/foo", O_CREAT | O_RDONLY, 0666, NULL);
+ if (q < 0) {
+ perror("mq_open");
+ return -1;
+ }
+ mq_getattr(q, &attr);
+
+
+ count = 100;
+ clock_gettime(CLOCK_MONOTONIC, &start);
+
+ for (i = 0; i < count; i++) {
+ char buf[attr.mq_msgsize];
+
+ clock_gettime(CLOCK_REALTIME, &now);
+ target = now;
+ target = timespec_add(now, TARGET_TIMEOUT); /* 100ms */
+
+ ret = mq_timedreceive(q, buf, sizeof(buf), NULL, &target);
+ if (ret < 0 && errno != ETIMEDOUT) {
+ perror("mq_timedreceive");
+ return -1;
+ }
+ }
+ clock_gettime(CLOCK_MONOTONIC, &end);
+
+ mq_close(q);
+
+ if ((timespec_sub(start, end)/count) > TARGET_TIMEOUT + UNRESONABLE_LATENCY)
+ return -1;
+
+ return 0;
+}
+
+int main(int argc, char **argv)
+{
+ int ret;
+
+ printf("Mqueue latency : ");
+
+ ret = mqueue_lat_test();
+ if (ret < 0) {
+ printf("[FAILED]\n");
+ return ksft_exit_fail();
+ }
+ printf("[OK]\n");
+ return ksft_exit_pass();
+}
--- /dev/null
+/* Make sure timers don't return early
+ * by: john stultz (johnstul@us.ibm.com)
+ * John Stultz (john.stultz@linaro.org)
+ * (C) Copyright IBM 2012
+ * (C) Copyright Linaro 2013 2015
+ * Licensed under the GPLv2
+ *
+ * To build:
+ * $ gcc nanosleep.c -o nanosleep -lrt
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <sys/time.h>
+#include <sys/timex.h>
+#include <string.h>
+#include <signal.h>
+#ifdef KTEST
+#include "../kselftest.h"
+#else
+static inline int ksft_exit_pass(void)
+{
+ exit(0);
+}
+static inline int ksft_exit_fail(void)
+{
+ exit(1);
+}
+#endif
+
+#define NSEC_PER_SEC 1000000000ULL
+
+#define CLOCK_REALTIME 0
+#define CLOCK_MONOTONIC 1
+#define CLOCK_PROCESS_CPUTIME_ID 2
+#define CLOCK_THREAD_CPUTIME_ID 3
+#define CLOCK_MONOTONIC_RAW 4
+#define CLOCK_REALTIME_COARSE 5
+#define CLOCK_MONOTONIC_COARSE 6
+#define CLOCK_BOOTTIME 7
+#define CLOCK_REALTIME_ALARM 8
+#define CLOCK_BOOTTIME_ALARM 9
+#define CLOCK_HWSPECIFIC 10
+#define CLOCK_TAI 11
+#define NR_CLOCKIDS 12
+
+#define UNSUPPORTED 0xf00f
+
+char *clockstring(int clockid)
+{
+ switch (clockid) {
+ case CLOCK_REALTIME:
+ return "CLOCK_REALTIME";
+ case CLOCK_MONOTONIC:
+ return "CLOCK_MONOTONIC";
+ case CLOCK_PROCESS_CPUTIME_ID:
+ return "CLOCK_PROCESS_CPUTIME_ID";
+ case CLOCK_THREAD_CPUTIME_ID:
+ return "CLOCK_THREAD_CPUTIME_ID";
+ case CLOCK_MONOTONIC_RAW:
+ return "CLOCK_MONOTONIC_RAW";
+ case CLOCK_REALTIME_COARSE:
+ return "CLOCK_REALTIME_COARSE";
+ case CLOCK_MONOTONIC_COARSE:
+ return "CLOCK_MONOTONIC_COARSE";
+ case CLOCK_BOOTTIME:
+ return "CLOCK_BOOTTIME";
+ case CLOCK_REALTIME_ALARM:
+ return "CLOCK_REALTIME_ALARM";
+ case CLOCK_BOOTTIME_ALARM:
+ return "CLOCK_BOOTTIME_ALARM";
+ case CLOCK_TAI:
+ return "CLOCK_TAI";
+ };
+ return "UNKNOWN_CLOCKID";
+}
+
+/* returns 1 if a <= b, 0 otherwise */
+static inline int in_order(struct timespec a, struct timespec b)
+{
+ if (a.tv_sec < b.tv_sec)
+ return 1;
+ if (a.tv_sec > b.tv_sec)
+ return 0;
+ if (a.tv_nsec > b.tv_nsec)
+ return 0;
+ return 1;
+}
+
+struct timespec timespec_add(struct timespec ts, unsigned long long ns)
+{
+ ts.tv_nsec += ns;
+ while (ts.tv_nsec >= NSEC_PER_SEC) {
+ ts.tv_nsec -= NSEC_PER_SEC;
+ ts.tv_sec++;
+ }
+ return ts;
+}
+
+int nanosleep_test(int clockid, long long ns)
+{
+ struct timespec now, target, rel;
+
+ /* First check abs time */
+ if (clock_gettime(clockid, &now))
+ return UNSUPPORTED;
+ target = timespec_add(now, ns);
+
+ if (clock_nanosleep(clockid, TIMER_ABSTIME, &target, NULL))
+ return UNSUPPORTED;
+ clock_gettime(clockid, &now);
+
+ if (!in_order(target, now))
+ return -1;
+
+ /* Second check reltime */
+ clock_gettime(clockid, &now);
+ rel.tv_sec = 0;
+ rel.tv_nsec = 0;
+ rel = timespec_add(rel, ns);
+ target = timespec_add(now, ns);
+ clock_nanosleep(clockid, 0, &rel, NULL);
+ clock_gettime(clockid, &now);
+
+ if (!in_order(target, now))
+ return -1;
+ return 0;
+}
+
+int main(int argc, char **argv)
+{
+ long long length;
+ int clockid, ret;
+
+ for (clockid = CLOCK_REALTIME; clockid < NR_CLOCKIDS; clockid++) {
+
+ /* Skip cputime clockids since nanosleep won't increment cputime */
+ if (clockid == CLOCK_PROCESS_CPUTIME_ID ||
+ clockid == CLOCK_THREAD_CPUTIME_ID ||
+ clockid == CLOCK_HWSPECIFIC)
+ continue;
+
+ printf("Nanosleep %-31s ", clockstring(clockid));
+
+ length = 10;
+ while (length <= (NSEC_PER_SEC * 10)) {
+ ret = nanosleep_test(clockid, length);
+ if (ret == UNSUPPORTED) {
+ printf("[UNSUPPORTED]\n");
+ goto next;
+ }
+ if (ret < 0) {
+ printf("[FAILED]\n");
+ return ksft_exit_fail();
+ }
+ length *= 100;
+ }
+ printf("[OK]\n");
+next:
+ ret = 0;
+ }
+ return ksft_exit_pass();
+}
--- /dev/null
+/* Measure nanosleep timer latency
+ * by: john stultz (john.stultz@linaro.org)
+ * (C) Copyright Linaro 2013
+ * Licensed under the GPLv2
+ *
+ * To build:
+ * $ gcc nsleep-lat.c -o nsleep-lat -lrt
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <sys/time.h>
+#include <sys/timex.h>
+#include <string.h>
+#include <signal.h>
+#ifdef KTEST
+#include "../kselftest.h"
+#else
+static inline int ksft_exit_pass(void)
+{
+ exit(0);
+}
+static inline int ksft_exit_fail(void)
+{
+ exit(1);
+}
+#endif
+
+#define NSEC_PER_SEC 1000000000ULL
+
+#define UNRESONABLE_LATENCY 40000000 /* 40ms in nanosecs */
+
+
+#define CLOCK_REALTIME 0
+#define CLOCK_MONOTONIC 1
+#define CLOCK_PROCESS_CPUTIME_ID 2
+#define CLOCK_THREAD_CPUTIME_ID 3
+#define CLOCK_MONOTONIC_RAW 4
+#define CLOCK_REALTIME_COARSE 5
+#define CLOCK_MONOTONIC_COARSE 6
+#define CLOCK_BOOTTIME 7
+#define CLOCK_REALTIME_ALARM 8
+#define CLOCK_BOOTTIME_ALARM 9
+#define CLOCK_HWSPECIFIC 10
+#define CLOCK_TAI 11
+#define NR_CLOCKIDS 12
+
+#define UNSUPPORTED 0xf00f
+
+char *clockstring(int clockid)
+{
+ switch (clockid) {
+ case CLOCK_REALTIME:
+ return "CLOCK_REALTIME";
+ case CLOCK_MONOTONIC:
+ return "CLOCK_MONOTONIC";
+ case CLOCK_PROCESS_CPUTIME_ID:
+ return "CLOCK_PROCESS_CPUTIME_ID";
+ case CLOCK_THREAD_CPUTIME_ID:
+ return "CLOCK_THREAD_CPUTIME_ID";
+ case CLOCK_MONOTONIC_RAW:
+ return "CLOCK_MONOTONIC_RAW";
+ case CLOCK_REALTIME_COARSE:
+ return "CLOCK_REALTIME_COARSE";
+ case CLOCK_MONOTONIC_COARSE:
+ return "CLOCK_MONOTONIC_COARSE";
+ case CLOCK_BOOTTIME:
+ return "CLOCK_BOOTTIME";
+ case CLOCK_REALTIME_ALARM:
+ return "CLOCK_REALTIME_ALARM";
+ case CLOCK_BOOTTIME_ALARM:
+ return "CLOCK_BOOTTIME_ALARM";
+ case CLOCK_TAI:
+ return "CLOCK_TAI";
+ };
+ return "UNKNOWN_CLOCKID";
+}
+
+struct timespec timespec_add(struct timespec ts, unsigned long long ns)
+{
+ ts.tv_nsec += ns;
+ while (ts.tv_nsec >= NSEC_PER_SEC) {
+ ts.tv_nsec -= NSEC_PER_SEC;
+ ts.tv_sec++;
+ }
+ return ts;
+}
+
+
+long long timespec_sub(struct timespec a, struct timespec b)
+{
+ long long ret = NSEC_PER_SEC * b.tv_sec + b.tv_nsec;
+
+ ret -= NSEC_PER_SEC * a.tv_sec + a.tv_nsec;
+ return ret;
+}
+
+int nanosleep_lat_test(int clockid, long long ns)
+{
+ struct timespec start, end, target;
+ long long latency = 0;
+ int i, count;
+
+ target.tv_sec = ns/NSEC_PER_SEC;
+ target.tv_nsec = ns%NSEC_PER_SEC;
+
+ if (clock_gettime(clockid, &start))
+ return UNSUPPORTED;
+ if (clock_nanosleep(clockid, 0, &target, NULL))
+ return UNSUPPORTED;
+
+ count = 10;
+
+ /* First check relative latency */
+ clock_gettime(clockid, &start);
+ for (i = 0; i < count; i++)
+ clock_nanosleep(clockid, 0, &target, NULL);
+ clock_gettime(clockid, &end);
+
+ if (((timespec_sub(start, end)/count)-ns) > UNRESONABLE_LATENCY) {
+ printf("Large rel latency: %lld ns :", (timespec_sub(start, end)/count)-ns);
+ return -1;
+ }
+
+ /* Next check absolute latency */
+ for (i = 0; i < count; i++) {
+ clock_gettime(clockid, &start);
+ target = timespec_add(start, ns);
+ clock_nanosleep(clockid, TIMER_ABSTIME, &target, NULL);
+ clock_gettime(clockid, &end);
+ latency += timespec_sub(target, end);
+ }
+
+ if (latency/count > UNRESONABLE_LATENCY) {
+ printf("Large abs latency: %lld ns :", latency/count);
+ return -1;
+ }
+
+ return 0;
+}
+
+
+
+int main(int argc, char **argv)
+{
+ long long length;
+ int clockid, ret;
+
+ for (clockid = CLOCK_REALTIME; clockid < NR_CLOCKIDS; clockid++) {
+
+ /* Skip cputime clockids since nanosleep won't increment cputime */
+ if (clockid == CLOCK_PROCESS_CPUTIME_ID ||
+ clockid == CLOCK_THREAD_CPUTIME_ID ||
+ clockid == CLOCK_HWSPECIFIC)
+ continue;
+
+ printf("nsleep latency %-26s ", clockstring(clockid));
+
+ length = 10;
+ while (length <= (NSEC_PER_SEC * 10)) {
+ ret = nanosleep_lat_test(clockid, length);
+ if (ret)
+ break;
+ length *= 100;
+
+ }
+
+ if (ret == UNSUPPORTED) {
+ printf("[UNSUPPORTED]\n");
+ continue;
+ }
+ if (ret < 0) {
+ printf("[FAILED]\n");
+ return ksft_exit_fail();
+ }
+ printf("[OK]\n");
+ }
+ return ksft_exit_pass();
+}
static void kernel_loop(void)
{
void *addr = sbrk(0);
+ int err = 0;
- while (!done) {
- brk(addr + 4096);
- brk(addr);
+ while (!done && !err) {
+ err = brk(addr + 4096);
+ err |= brk(addr);
}
}
int main(int argc, char **argv)
{
- int err;
-
printf("Testing posix timers. False negative may happen on CPU execution \n");
printf("based timers if other threads run on the CPU...\n");
--- /dev/null
+/* CLOCK_MONOTONIC vs CLOCK_MONOTONIC_RAW skew test
+ * by: john stultz (johnstul@us.ibm.com)
+ * John Stultz <john.stultz@linaro.org>
+ * (C) Copyright IBM 2012
+ * (C) Copyright Linaro Limited 2015
+ * Licensed under the GPLv2
+ *
+ * To build:
+ * $ gcc raw_skew.c -o raw_skew -lrt
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <sys/time.h>
+#include <sys/timex.h>
+#include <time.h>
+#ifdef KTEST
+#include "../kselftest.h"
+#else
+static inline int ksft_exit_pass(void)
+{
+ exit(0);
+}
+static inline int ksft_exit_fail(void)
+{
+ exit(1);
+}
+#endif
+
+
+#define CLOCK_MONOTONIC_RAW 4
+#define NSEC_PER_SEC 1000000000LL
+
+#define shift_right(x, s) ({ \
+ __typeof__(x) __x = (x); \
+ __typeof__(s) __s = (s); \
+ __x < 0 ? -(-__x >> __s) : __x >> __s; \
+})
+
+long long llabs(long long val)
+{
+ if (val < 0)
+ val = -val;
+ return val;
+}
+
+unsigned long long ts_to_nsec(struct timespec ts)
+{
+ return ts.tv_sec * NSEC_PER_SEC + ts.tv_nsec;
+}
+
+struct timespec nsec_to_ts(long long ns)
+{
+ struct timespec ts;
+
+ ts.tv_sec = ns/NSEC_PER_SEC;
+ ts.tv_nsec = ns%NSEC_PER_SEC;
+ return ts;
+}
+
+long long diff_timespec(struct timespec start, struct timespec end)
+{
+ long long start_ns, end_ns;
+
+ start_ns = ts_to_nsec(start);
+ end_ns = ts_to_nsec(end);
+ return end_ns - start_ns;
+}
+
+void get_monotonic_and_raw(struct timespec *mon, struct timespec *raw)
+{
+ struct timespec start, mid, end;
+ long long diff = 0, tmp;
+ int i;
+
+ for (i = 0; i < 3; i++) {
+ long long newdiff;
+
+ clock_gettime(CLOCK_MONOTONIC, &start);
+ clock_gettime(CLOCK_MONOTONIC_RAW, &mid);
+ clock_gettime(CLOCK_MONOTONIC, &end);
+
+ newdiff = diff_timespec(start, end);
+ if (diff == 0 || newdiff < diff) {
+ diff = newdiff;
+ *raw = mid;
+ tmp = (ts_to_nsec(start) + ts_to_nsec(end))/2;
+ *mon = nsec_to_ts(tmp);
+ }
+ }
+}
+
+int main(int argv, char **argc)
+{
+ struct timespec mon, raw, start, end;
+ long long delta1, delta2, interval, eppm, ppm;
+ struct timex tx1, tx2;
+
+ setbuf(stdout, NULL);
+
+ if (clock_gettime(CLOCK_MONOTONIC_RAW, &raw)) {
+ printf("ERR: NO CLOCK_MONOTONIC_RAW\n");
+ return -1;
+ }
+
+ tx1.modes = 0;
+ adjtimex(&tx1);
+ get_monotonic_and_raw(&mon, &raw);
+ start = mon;
+ delta1 = diff_timespec(mon, raw);
+
+ if (tx1.offset)
+ printf("WARNING: ADJ_OFFSET in progress, this will cause inaccurate results\n");
+
+ printf("Estimating clock drift: ");
+ sleep(120);
+
+ get_monotonic_and_raw(&mon, &raw);
+ end = mon;
+ tx2.modes = 0;
+ adjtimex(&tx2);
+ delta2 = diff_timespec(mon, raw);
+
+ interval = diff_timespec(start, end);
+
+ /* calculate measured ppm between MONOTONIC and MONOTONIC_RAW */
+ eppm = ((delta2-delta1)*NSEC_PER_SEC)/interval;
+ eppm = -eppm;
+ printf("%lld.%i(est)", eppm/1000, abs((int)(eppm%1000)));
+
+ /* Avg the two actual freq samples adjtimex gave us */
+ ppm = (tx1.freq + tx2.freq) * 1000 / 2;
+ ppm = (long long)tx1.freq * 1000;
+ ppm = shift_right(ppm, 16);
+ printf(" %lld.%i(act)", ppm/1000, abs((int)(ppm%1000)));
+
+ if (llabs(eppm - ppm) > 1000) {
+ printf(" [FAILED]\n");
+ return ksft_exit_fail();
+ }
+ printf(" [OK]\n");
+ return ksft_exit_pass();
+}
--- /dev/null
+/*
+ * Real Time Clock Driver Test/Example Program
+ *
+ * Compile with:
+ * gcc -s -Wall -Wstrict-prototypes rtctest.c -o rtctest
+ *
+ * Copyright (C) 1996, Paul Gortmaker.
+ *
+ * Released under the GNU General Public License, version 2,
+ * included herein by reference.
+ *
+ */
+
+#include <stdio.h>
+#include <linux/rtc.h>
+#include <sys/ioctl.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <errno.h>
+
+
+/*
+ * This expects the new RTC class driver framework, working with
+ * clocks that will often not be clones of what the PC-AT had.
+ * Use the command line to specify another RTC if you need one.
+ */
+static const char default_rtc[] = "/dev/rtc0";
+
+
+int main(int argc, char **argv)
+{
+ int i, fd, retval, irqcount = 0;
+ unsigned long tmp, data;
+ struct rtc_time rtc_tm;
+ const char *rtc = default_rtc;
+ struct timeval start, end, diff;
+
+ switch (argc) {
+ case 2:
+ rtc = argv[1];
+ /* FALLTHROUGH */
+ case 1:
+ break;
+ default:
+ fprintf(stderr, "usage: rtctest [rtcdev]\n");
+ return 1;
+ }
+
+ fd = open(rtc, O_RDONLY);
+
+ if (fd == -1) {
+ perror(rtc);
+ exit(errno);
+ }
+
+ fprintf(stderr, "\n\t\t\tRTC Driver Test Example.\n\n");
+
+ /* Turn on update interrupts (one per second) */
+ retval = ioctl(fd, RTC_UIE_ON, 0);
+ if (retval == -1) {
+ if (errno == ENOTTY) {
+ fprintf(stderr,
+ "\n...Update IRQs not supported.\n");
+ goto test_READ;
+ }
+ perror("RTC_UIE_ON ioctl");
+ exit(errno);
+ }
+
+ fprintf(stderr, "Counting 5 update (1/sec) interrupts from reading %s:",
+ rtc);
+ fflush(stderr);
+ for (i=1; i<6; i++) {
+ /* This read will block */
+ retval = read(fd, &data, sizeof(unsigned long));
+ if (retval == -1) {
+ perror("read");
+ exit(errno);
+ }
+ fprintf(stderr, " %d",i);
+ fflush(stderr);
+ irqcount++;
+ }
+
+ fprintf(stderr, "\nAgain, from using select(2) on /dev/rtc:");
+ fflush(stderr);
+ for (i=1; i<6; i++) {
+ struct timeval tv = {5, 0}; /* 5 second timeout on select */
+ fd_set readfds;
+
+ FD_ZERO(&readfds);
+ FD_SET(fd, &readfds);
+ /* The select will wait until an RTC interrupt happens. */
+ retval = select(fd+1, &readfds, NULL, NULL, &tv);
+ if (retval == -1) {
+ perror("select");
+ exit(errno);
+ }
+ /* This read won't block unlike the select-less case above. */
+ retval = read(fd, &data, sizeof(unsigned long));
+ if (retval == -1) {
+ perror("read");
+ exit(errno);
+ }
+ fprintf(stderr, " %d",i);
+ fflush(stderr);
+ irqcount++;
+ }
+
+ /* Turn off update interrupts */
+ retval = ioctl(fd, RTC_UIE_OFF, 0);
+ if (retval == -1) {
+ perror("RTC_UIE_OFF ioctl");
+ exit(errno);
+ }
+
+test_READ:
+ /* Read the RTC time/date */
+ retval = ioctl(fd, RTC_RD_TIME, &rtc_tm);
+ if (retval == -1) {
+ perror("RTC_RD_TIME ioctl");
+ exit(errno);
+ }
+
+ fprintf(stderr, "\n\nCurrent RTC date/time is %d-%d-%d, %02d:%02d:%02d.\n",
+ rtc_tm.tm_mday, rtc_tm.tm_mon + 1, rtc_tm.tm_year + 1900,
+ rtc_tm.tm_hour, rtc_tm.tm_min, rtc_tm.tm_sec);
+
+ /* Set the alarm to 5 sec in the future, and check for rollover */
+ rtc_tm.tm_sec += 5;
+ if (rtc_tm.tm_sec >= 60) {
+ rtc_tm.tm_sec %= 60;
+ rtc_tm.tm_min++;
+ }
+ if (rtc_tm.tm_min == 60) {
+ rtc_tm.tm_min = 0;
+ rtc_tm.tm_hour++;
+ }
+ if (rtc_tm.tm_hour == 24)
+ rtc_tm.tm_hour = 0;
+
+ retval = ioctl(fd, RTC_ALM_SET, &rtc_tm);
+ if (retval == -1) {
+ if (errno == ENOTTY) {
+ fprintf(stderr,
+ "\n...Alarm IRQs not supported.\n");
+ goto test_PIE;
+ }
+ perror("RTC_ALM_SET ioctl");
+ exit(errno);
+ }
+
+ /* Read the current alarm settings */
+ retval = ioctl(fd, RTC_ALM_READ, &rtc_tm);
+ if (retval == -1) {
+ perror("RTC_ALM_READ ioctl");
+ exit(errno);
+ }
+
+ fprintf(stderr, "Alarm time now set to %02d:%02d:%02d.\n",
+ rtc_tm.tm_hour, rtc_tm.tm_min, rtc_tm.tm_sec);
+
+ /* Enable alarm interrupts */
+ retval = ioctl(fd, RTC_AIE_ON, 0);
+ if (retval == -1) {
+ perror("RTC_AIE_ON ioctl");
+ exit(errno);
+ }
+
+ fprintf(stderr, "Waiting 5 seconds for alarm...");
+ fflush(stderr);
+ /* This blocks until the alarm ring causes an interrupt */
+ retval = read(fd, &data, sizeof(unsigned long));
+ if (retval == -1) {
+ perror("read");
+ exit(errno);
+ }
+ irqcount++;
+ fprintf(stderr, " okay. Alarm rang.\n");
+
+ /* Disable alarm interrupts */
+ retval = ioctl(fd, RTC_AIE_OFF, 0);
+ if (retval == -1) {
+ perror("RTC_AIE_OFF ioctl");
+ exit(errno);
+ }
+
+test_PIE:
+ /* Read periodic IRQ rate */
+ retval = ioctl(fd, RTC_IRQP_READ, &tmp);
+ if (retval == -1) {
+ /* not all RTCs support periodic IRQs */
+ if (errno == ENOTTY) {
+ fprintf(stderr, "\nNo periodic IRQ support\n");
+ goto done;
+ }
+ perror("RTC_IRQP_READ ioctl");
+ exit(errno);
+ }
+ fprintf(stderr, "\nPeriodic IRQ rate is %ldHz.\n", tmp);
+
+ fprintf(stderr, "Counting 20 interrupts at:");
+ fflush(stderr);
+
+ /* The frequencies 128Hz, 256Hz, ... 8192Hz are only allowed for root. */
+ for (tmp=2; tmp<=64; tmp*=2) {
+
+ retval = ioctl(fd, RTC_IRQP_SET, tmp);
+ if (retval == -1) {
+ /* not all RTCs can change their periodic IRQ rate */
+ if (errno == ENOTTY) {
+ fprintf(stderr,
+ "\n...Periodic IRQ rate is fixed\n");
+ goto done;
+ }
+ perror("RTC_IRQP_SET ioctl");
+ exit(errno);
+ }
+
+ fprintf(stderr, "\n%ldHz:\t", tmp);
+ fflush(stderr);
+
+ /* Enable periodic interrupts */
+ retval = ioctl(fd, RTC_PIE_ON, 0);
+ if (retval == -1) {
+ perror("RTC_PIE_ON ioctl");
+ exit(errno);
+ }
+
+ for (i=1; i<21; i++) {
+ gettimeofday(&start, NULL);
+ /* This blocks */
+ retval = read(fd, &data, sizeof(unsigned long));
+ if (retval == -1) {
+ perror("read");
+ exit(errno);
+ }
+ gettimeofday(&end, NULL);
+ timersub(&end, &start, &diff);
+ if (diff.tv_sec > 0 ||
+ diff.tv_usec > ((1000000L / tmp) * 1.10)) {
+ fprintf(stderr, "\nPIE delta error: %ld.%06ld should be close to 0.%06ld\n",
+ diff.tv_sec, diff.tv_usec,
+ (1000000L / tmp));
+ fflush(stdout);
+ exit(-1);
+ }
+
+ fprintf(stderr, " %d",i);
+ fflush(stderr);
+ irqcount++;
+ }
+
+ /* Disable periodic interrupts */
+ retval = ioctl(fd, RTC_PIE_OFF, 0);
+ if (retval == -1) {
+ perror("RTC_PIE_OFF ioctl");
+ exit(errno);
+ }
+ }
+
+done:
+ fprintf(stderr, "\n\n\t\t\t *** Test complete ***\n");
+
+ close(fd);
+
+ return 0;
+}
--- /dev/null
+/* Time bounds setting test
+ * by: john stultz (johnstul@us.ibm.com)
+ * (C) Copyright IBM 2012
+ * Licensed under the GPLv2
+ *
+ * NOTE: This is a meta-test which sets the time to edge cases then
+ * uses other tests to detect problems. Thus this test requires that
+ * the inconsistency-check and nanosleep tests be present in the same
+ * directory it is run from.
+ *
+ * To build:
+ * $ gcc set-2038.c -o set-2038 -lrt
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <time.h>
+#include <sys/time.h>
+#ifdef KTEST
+#include "../kselftest.h"
+#else
+static inline int ksft_exit_pass(void)
+{
+ exit(0);
+}
+static inline int ksft_exit_fail(void)
+{
+ exit(1);
+}
+#endif
+
+#define NSEC_PER_SEC 1000000000LL
+
+#define KTIME_MAX ((long long)~((unsigned long long)1 << 63))
+#define KTIME_SEC_MAX (KTIME_MAX / NSEC_PER_SEC)
+
+#define YEAR_1901 (-0x7fffffffL)
+#define YEAR_1970 1
+#define YEAR_2038 0x7fffffffL /*overflows 32bit time_t */
+#define YEAR_2262 KTIME_SEC_MAX /*overflows 64bit ktime_t */
+#define YEAR_MAX ((long long)((1ULL<<63)-1)) /*overflows 64bit time_t */
+
+int is32bits(void)
+{
+ return (sizeof(long) == 4);
+}
+
+int settime(long long time)
+{
+ struct timeval now;
+ int ret;
+
+ now.tv_sec = (time_t)time;
+ now.tv_usec = 0;
+
+ ret = settimeofday(&now, NULL);
+
+ printf("Setting time to 0x%lx: %d\n", (long)time, ret);
+ return ret;
+}
+
+int do_tests(void)
+{
+ int ret;
+
+ ret = system("date");
+ ret = system("./inconsistency-check -c 0 -t 20");
+ ret |= system("./nanosleep");
+ ret |= system("./nsleep-lat");
+ return ret;
+
+}
+
+int main(int argc, char *argv[])
+{
+ int ret = 0;
+ int opt, dangerous = 0;
+ time_t start;
+
+ /* Process arguments */
+ while ((opt = getopt(argc, argv, "d")) != -1) {
+ switch (opt) {
+ case 'd':
+ dangerous = 1;
+ }
+ }
+
+ start = time(0);
+
+ /* First test that crazy values don't work */
+ if (!settime(YEAR_1901)) {
+ ret = -1;
+ goto out;
+ }
+ if (!settime(YEAR_MAX)) {
+ ret = -1;
+ goto out;
+ }
+ if (!is32bits() && !settime(YEAR_2262)) {
+ ret = -1;
+ goto out;
+ }
+
+ /* Now test behavior near edges */
+ settime(YEAR_1970);
+ ret = do_tests();
+ if (ret)
+ goto out;
+
+ settime(YEAR_2038 - 600);
+ ret = do_tests();
+ if (ret)
+ goto out;
+
+ /* The rest of the tests can blowup on 32bit systems */
+ if (is32bits() && !dangerous)
+ goto out;
+ /* Test rollover behavior 32bit edge */
+ settime(YEAR_2038 - 10);
+ ret = do_tests();
+ if (ret)
+ goto out;
+
+ settime(YEAR_2262 - 600);
+ ret = do_tests();
+
+out:
+ /* restore clock */
+ settime(start);
+ if (ret)
+ return ksft_exit_fail();
+ return ksft_exit_pass();
+}
--- /dev/null
+/* Set tai offset
+ * by: John Stultz <john.stultz@linaro.org>
+ * (C) Copyright Linaro 2013
+ * Licensed under the GPLv2
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <sys/time.h>
+#include <sys/timex.h>
+#include <string.h>
+#include <signal.h>
+#include <unistd.h>
+#ifdef KTEST
+#include "../kselftest.h"
+#else
+static inline int ksft_exit_pass(void)
+{
+ exit(0);
+}
+static inline int ksft_exit_fail(void)
+{
+ exit(1);
+}
+#endif
+
+int set_tai(int offset)
+{
+ struct timex tx;
+
+ memset(&tx, 0, sizeof(tx));
+
+ tx.modes = ADJ_TAI;
+ tx.constant = offset;
+
+ return adjtimex(&tx);
+}
+
+int get_tai(void)
+{
+ struct timex tx;
+
+ memset(&tx, 0, sizeof(tx));
+
+ adjtimex(&tx);
+ return tx.tai;
+}
+
+int main(int argc, char **argv)
+{
+ int i, ret;
+
+ ret = get_tai();
+ printf("tai offset started at %i\n", ret);
+
+ printf("Checking tai offsets can be properly set: ");
+ for (i = 1; i <= 60; i++) {
+ ret = set_tai(i);
+ ret = get_tai();
+ if (ret != i) {
+ printf("[FAILED] expected: %i got %i\n", i, ret);
+ return ksft_exit_fail();
+ }
+ }
+ printf("[OK]\n");
+ return ksft_exit_pass();
+}
--- /dev/null
+/* set_timer latency test
+ * John Stultz (john.stultz@linaro.org)
+ * (C) Copyright Linaro 2014
+ * Licensed under the GPLv2
+ *
+ * This test makes sure the set_timer api is correct
+ *
+ * To build:
+ * $ gcc set-timer-lat.c -o set-timer-lat -lrt
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+
+#include <stdio.h>
+#include <unistd.h>
+#include <time.h>
+#include <string.h>
+#include <signal.h>
+#include <stdlib.h>
+#include <pthread.h>
+#ifdef KTEST
+#include "../kselftest.h"
+#else
+static inline int ksft_exit_pass(void)
+{
+ exit(0);
+}
+static inline int ksft_exit_fail(void)
+{
+ exit(1);
+}
+#endif
+
+#define CLOCK_REALTIME 0
+#define CLOCK_MONOTONIC 1
+#define CLOCK_PROCESS_CPUTIME_ID 2
+#define CLOCK_THREAD_CPUTIME_ID 3
+#define CLOCK_MONOTONIC_RAW 4
+#define CLOCK_REALTIME_COARSE 5
+#define CLOCK_MONOTONIC_COARSE 6
+#define CLOCK_BOOTTIME 7
+#define CLOCK_REALTIME_ALARM 8
+#define CLOCK_BOOTTIME_ALARM 9
+#define CLOCK_HWSPECIFIC 10
+#define CLOCK_TAI 11
+#define NR_CLOCKIDS 12
+
+
+#define NSEC_PER_SEC 1000000000ULL
+#define UNRESONABLE_LATENCY 40000000 /* 40ms in nanosecs */
+
+#define TIMER_SECS 1
+int alarmcount;
+int clock_id;
+struct timespec start_time;
+long long max_latency_ns;
+
+char *clockstring(int clockid)
+{
+ switch (clockid) {
+ case CLOCK_REALTIME:
+ return "CLOCK_REALTIME";
+ case CLOCK_MONOTONIC:
+ return "CLOCK_MONOTONIC";
+ case CLOCK_PROCESS_CPUTIME_ID:
+ return "CLOCK_PROCESS_CPUTIME_ID";
+ case CLOCK_THREAD_CPUTIME_ID:
+ return "CLOCK_THREAD_CPUTIME_ID";
+ case CLOCK_MONOTONIC_RAW:
+ return "CLOCK_MONOTONIC_RAW";
+ case CLOCK_REALTIME_COARSE:
+ return "CLOCK_REALTIME_COARSE";
+ case CLOCK_MONOTONIC_COARSE:
+ return "CLOCK_MONOTONIC_COARSE";
+ case CLOCK_BOOTTIME:
+ return "CLOCK_BOOTTIME";
+ case CLOCK_REALTIME_ALARM:
+ return "CLOCK_REALTIME_ALARM";
+ case CLOCK_BOOTTIME_ALARM:
+ return "CLOCK_BOOTTIME_ALARM";
+ case CLOCK_TAI:
+ return "CLOCK_TAI";
+ };
+ return "UNKNOWN_CLOCKID";
+}
+
+
+long long timespec_sub(struct timespec a, struct timespec b)
+{
+ long long ret = NSEC_PER_SEC * b.tv_sec + b.tv_nsec;
+
+ ret -= NSEC_PER_SEC * a.tv_sec + a.tv_nsec;
+ return ret;
+}
+
+
+void sigalarm(int signo)
+{
+ long long delta_ns;
+ struct timespec ts;
+
+ clock_gettime(clock_id, &ts);
+ alarmcount++;
+
+ delta_ns = timespec_sub(start_time, ts);
+ delta_ns -= NSEC_PER_SEC * TIMER_SECS * alarmcount;
+
+ if (delta_ns < 0)
+ printf("%s timer fired early: FAIL\n", clockstring(clock_id));
+
+ if (delta_ns > max_latency_ns)
+ max_latency_ns = delta_ns;
+}
+
+int do_timer(int clock_id, int flags)
+{
+ struct sigevent se;
+ timer_t tm1;
+ struct itimerspec its1, its2;
+ int err;
+
+ /* Set up timer: */
+ memset(&se, 0, sizeof(se));
+ se.sigev_notify = SIGEV_SIGNAL;
+ se.sigev_signo = SIGRTMAX;
+ se.sigev_value.sival_int = 0;
+
+ max_latency_ns = 0;
+ alarmcount = 0;
+
+ err = timer_create(clock_id, &se, &tm1);
+ if (err) {
+ if ((clock_id == CLOCK_REALTIME_ALARM) ||
+ (clock_id == CLOCK_BOOTTIME_ALARM)) {
+ printf("%-22s %s missing CAP_WAKE_ALARM? : [UNSUPPORTED]\n",
+ clockstring(clock_id),
+ flags ? "ABSTIME":"RELTIME");
+ return 0;
+ }
+ printf("%s - timer_create() failed\n", clockstring(clock_id));
+ return -1;
+ }
+
+ clock_gettime(clock_id, &start_time);
+ if (flags) {
+ its1.it_value = start_time;
+ its1.it_value.tv_sec += TIMER_SECS;
+ } else {
+ its1.it_value.tv_sec = TIMER_SECS;
+ its1.it_value.tv_nsec = 0;
+ }
+ its1.it_interval.tv_sec = TIMER_SECS;
+ its1.it_interval.tv_nsec = 0;
+
+ err = timer_settime(tm1, flags, &its1, &its2);
+ if (err) {
+ printf("%s - timer_settime() failed\n", clockstring(clock_id));
+ return -1;
+ }
+
+ while (alarmcount < 5)
+ sleep(1);
+
+ printf("%-22s %s max latency: %10lld ns : ",
+ clockstring(clock_id),
+ flags ? "ABSTIME":"RELTIME",
+ max_latency_ns);
+
+ timer_delete(tm1);
+ if (max_latency_ns < UNRESONABLE_LATENCY) {
+ printf("[OK]\n");
+ return 0;
+ }
+ printf("[FAILED]\n");
+ return -1;
+}
+
+int main(void)
+{
+ struct sigaction act;
+ int signum = SIGRTMAX;
+ int ret = 0;
+
+ /* Set up signal handler: */
+ sigfillset(&act.sa_mask);
+ act.sa_flags = 0;
+ act.sa_handler = sigalarm;
+ sigaction(signum, &act, NULL);
+
+ printf("Setting timers for every %i seconds\n", TIMER_SECS);
+ for (clock_id = 0; clock_id < NR_CLOCKIDS; clock_id++) {
+
+ if ((clock_id == CLOCK_PROCESS_CPUTIME_ID) ||
+ (clock_id == CLOCK_THREAD_CPUTIME_ID) ||
+ (clock_id == CLOCK_MONOTONIC_RAW) ||
+ (clock_id == CLOCK_REALTIME_COARSE) ||
+ (clock_id == CLOCK_MONOTONIC_COARSE) ||
+ (clock_id == CLOCK_HWSPECIFIC))
+ continue;
+
+ ret |= do_timer(clock_id, TIMER_ABSTIME);
+ ret |= do_timer(clock_id, 0);
+ }
+ if (ret)
+ return ksft_exit_fail();
+ return ksft_exit_pass();
+}
--- /dev/null
+/* ADJ_FREQ Skew consistency test
+ * by: john stultz (johnstul@us.ibm.com)
+ * (C) Copyright IBM 2012
+ * Licensed under the GPLv2
+ *
+ * NOTE: This is a meta-test which cranks the ADJ_FREQ knob back
+ * and forth and watches for consistency problems. Thus this test requires
+ * that the inconsistency-check tests be present in the same directory it
+ * is run from.
+ *
+ * To build:
+ * $ gcc skew_consistency.c -o skew_consistency -lrt
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/time.h>
+#include <sys/timex.h>
+#include <time.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/wait.h>
+#ifdef KTEST
+#include "../kselftest.h"
+#else
+static inline int ksft_exit_pass(void)
+{
+ exit(0);
+}
+static inline int ksft_exit_fail(void)
+{
+ exit(1);
+}
+#endif
+
+#define NSEC_PER_SEC 1000000000LL
+
+int main(int argv, char **argc)
+{
+ struct timex tx;
+ int ret, ppm;
+ pid_t pid;
+
+
+ printf("Running Asyncrhonous Frequency Changing Tests...\n");
+
+ pid = fork();
+ if (!pid)
+ return system("./inconsistency-check -c 1 -t 600");
+
+ ppm = 500;
+ ret = 0;
+
+ while (pid != waitpid(pid, &ret, WNOHANG)) {
+ ppm = -ppm;
+ tx.modes = ADJ_FREQUENCY;
+ tx.freq = ppm << 16;
+ adjtimex(&tx);
+ usleep(500000);
+ }
+
+ /* Set things back */
+ tx.modes = ADJ_FREQUENCY;
+ tx.offset = 0;
+ adjtimex(&tx);
+
+
+ if (ret) {
+ printf("[FAILED]\n");
+ return ksft_exit_fail();
+ }
+ printf("[OK]\n");
+ return ksft_exit_pass();
+}
--- /dev/null
+/* threadtest.c
+ * by: john stultz (johnstul@us.ibm.com)
+ * (C) Copyright IBM 2004, 2005, 2006, 2012
+ * Licensed under the GPLv2
+ *
+ * To build:
+ * $ gcc threadtest.c -o threadtest -lrt
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <sys/time.h>
+#include <pthread.h>
+#ifdef KTEST
+#include "../kselftest.h"
+#else
+static inline int ksft_exit_pass(void)
+{
+ exit(0);
+}
+static inline int ksft_exit_fail(void)
+{
+ exit(1);
+}
+#endif
+
+
+/* serializes shared list access */
+pthread_mutex_t list_lock = PTHREAD_MUTEX_INITIALIZER;
+/* serializes console output */
+pthread_mutex_t print_lock = PTHREAD_MUTEX_INITIALIZER;
+
+
+#define MAX_THREADS 128
+#define LISTSIZE 128
+
+int done = 0;
+
+struct timespec global_list[LISTSIZE];
+int listcount = 0;
+
+
+void checklist(struct timespec *list, int size)
+{
+ int i, j;
+ struct timespec *a, *b;
+
+ /* scan the list */
+ for (i = 0; i < size-1; i++) {
+ a = &list[i];
+ b = &list[i+1];
+
+ /* look for any time inconsistencies */
+ if ((b->tv_sec <= a->tv_sec) &&
+ (b->tv_nsec < a->tv_nsec)) {
+
+ /* flag other threads */
+ done = 1;
+
+ /*serialize printing to avoid junky output*/
+ pthread_mutex_lock(&print_lock);
+
+ /* dump the list */
+ printf("\n");
+ for (j = 0; j < size; j++) {
+ if (j == i)
+ printf("---------------\n");
+ printf("%lu:%lu\n", list[j].tv_sec, list[j].tv_nsec);
+ if (j == i+1)
+ printf("---------------\n");
+ }
+ printf("[FAILED]\n");
+
+ pthread_mutex_unlock(&print_lock);
+ }
+ }
+}
+
+/* The shared thread shares a global list
+ * that each thread fills while holding the lock.
+ * This stresses clock syncronization across cpus.
+ */
+void *shared_thread(void *arg)
+{
+ while (!done) {
+ /* protect the list */
+ pthread_mutex_lock(&list_lock);
+
+ /* see if we're ready to check the list */
+ if (listcount >= LISTSIZE) {
+ checklist(global_list, LISTSIZE);
+ listcount = 0;
+ }
+ clock_gettime(CLOCK_MONOTONIC, &global_list[listcount++]);
+
+ pthread_mutex_unlock(&list_lock);
+ }
+ return NULL;
+}
+
+
+/* Each independent thread fills in its own
+ * list. This stresses clock_gettime() lock contention.
+ */
+void *independent_thread(void *arg)
+{
+ struct timespec my_list[LISTSIZE];
+ int count;
+
+ while (!done) {
+ /* fill the list */
+ for (count = 0; count < LISTSIZE; count++)
+ clock_gettime(CLOCK_MONOTONIC, &my_list[count]);
+ checklist(my_list, LISTSIZE);
+ }
+ return NULL;
+}
+
+#define DEFAULT_THREAD_COUNT 8
+#define DEFAULT_RUNTIME 30
+
+int main(int argc, char **argv)
+{
+ int thread_count, i;
+ time_t start, now, runtime;
+ char buf[255];
+ pthread_t pth[MAX_THREADS];
+ int opt;
+ void *tret;
+ int ret = 0;
+ void *(*thread)(void *) = shared_thread;
+
+ thread_count = DEFAULT_THREAD_COUNT;
+ runtime = DEFAULT_RUNTIME;
+
+ /* Process arguments */
+ while ((opt = getopt(argc, argv, "t:n:i")) != -1) {
+ switch (opt) {
+ case 't':
+ runtime = atoi(optarg);
+ break;
+ case 'n':
+ thread_count = atoi(optarg);
+ break;
+ case 'i':
+ thread = independent_thread;
+ printf("using independent threads\n");
+ break;
+ default:
+ printf("Usage: %s [-t <secs>] [-n <numthreads>] [-i]\n", argv[0]);
+ printf(" -t: time to run\n");
+ printf(" -n: number of threads\n");
+ printf(" -i: use independent threads\n");
+ return -1;
+ }
+ }
+
+ if (thread_count > MAX_THREADS)
+ thread_count = MAX_THREADS;
+
+
+ setbuf(stdout, NULL);
+
+ start = time(0);
+ strftime(buf, 255, "%a, %d %b %Y %T %z", localtime(&start));
+ printf("%s\n", buf);
+ printf("Testing consistency with %i threads for %ld seconds: ", thread_count, runtime);
+
+ /* spawn */
+ for (i = 0; i < thread_count; i++)
+ pthread_create(&pth[i], 0, thread, 0);
+
+ while (time(&now) < start + runtime) {
+ sleep(1);
+ if (done) {
+ ret = 1;
+ strftime(buf, 255, "%a, %d %b %Y %T %z", localtime(&now));
+ printf("%s\n", buf);
+ goto out;
+ }
+ }
+ printf("[OK]\n");
+ done = 1;
+
+out:
+ /* wait */
+ for (i = 0; i < thread_count; i++)
+ pthread_join(pth[i], &tret);
+
+ /* die */
+ if (ret)
+ ksft_exit_fail();
+ return ksft_exit_pass();
+}
--- /dev/null
+/* valid adjtimex test
+ * by: John Stultz <john.stultz@linaro.org>
+ * (C) Copyright Linaro 2015
+ * Licensed under the GPLv2
+ *
+ * This test validates adjtimex interface with valid
+ * and invalid test data.
+ *
+ * Usage: valid-adjtimex
+ *
+ * To build:
+ * $ gcc valid-adjtimex.c -o valid-adjtimex -lrt
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <sys/time.h>
+#include <sys/timex.h>
+#include <string.h>
+#include <signal.h>
+#include <unistd.h>
+#ifdef KTEST
+#include "../kselftest.h"
+#else
+static inline int ksft_exit_pass(void)
+{
+ exit(0);
+}
+static inline int ksft_exit_fail(void)
+{
+ exit(1);
+}
+#endif
+
+#define NSEC_PER_SEC 1000000000L
+
+/* clear NTP time_status & time_state */
+int clear_time_state(void)
+{
+ struct timex tx;
+ int ret;
+
+ tx.modes = ADJ_STATUS;
+ tx.status = 0;
+ ret = adjtimex(&tx);
+ return ret;
+}
+
+#define NUM_FREQ_VALID 32
+#define NUM_FREQ_OUTOFRANGE 4
+#define NUM_FREQ_INVALID 2
+
+long valid_freq[NUM_FREQ_VALID] = {
+ -499<<16,
+ -450<<16,
+ -400<<16,
+ -350<<16,
+ -300<<16,
+ -250<<16,
+ -200<<16,
+ -150<<16,
+ -100<<16,
+ -75<<16,
+ -50<<16,
+ -25<<16,
+ -10<<16,
+ -5<<16,
+ -1<<16,
+ -1000,
+ 1<<16,
+ 5<<16,
+ 10<<16,
+ 25<<16,
+ 50<<16,
+ 75<<16,
+ 100<<16,
+ 150<<16,
+ 200<<16,
+ 250<<16,
+ 300<<16,
+ 350<<16,
+ 400<<16,
+ 450<<16,
+ 499<<16,
+};
+
+long outofrange_freq[NUM_FREQ_OUTOFRANGE] = {
+ -1000<<16,
+ -550<<16,
+ 550<<16,
+ 1000<<16,
+};
+
+#define LONG_MAX (~0UL>>1)
+#define LONG_MIN (-LONG_MAX - 1)
+
+long invalid_freq[NUM_FREQ_INVALID] = {
+ LONG_MAX,
+ LONG_MIN,
+};
+
+int validate_freq(void)
+{
+ struct timex tx;
+ int ret, pass = 0;
+ int i;
+
+ clear_time_state();
+
+ memset(&tx, 0, sizeof(struct timex));
+ /* Set the leap second insert flag */
+
+ printf("Testing ADJ_FREQ... ");
+ for (i = 0; i < NUM_FREQ_VALID; i++) {
+ tx.modes = ADJ_FREQUENCY;
+ tx.freq = valid_freq[i];
+
+ ret = adjtimex(&tx);
+ if (ret < 0) {
+ printf("[FAIL]\n");
+ printf("Error: adjtimex(ADJ_FREQ, %ld - %ld ppm\n",
+ valid_freq[i], valid_freq[i]>>16);
+ pass = -1;
+ goto out;
+ }
+ tx.modes = 0;
+ ret = adjtimex(&tx);
+ if (tx.freq != valid_freq[i]) {
+ printf("Warning: freq value %ld not what we set it (%ld)!\n",
+ tx.freq, valid_freq[i]);
+ }
+ }
+ for (i = 0; i < NUM_FREQ_OUTOFRANGE; i++) {
+ tx.modes = ADJ_FREQUENCY;
+ tx.freq = outofrange_freq[i];
+
+ ret = adjtimex(&tx);
+ if (ret < 0) {
+ printf("[FAIL]\n");
+ printf("Error: adjtimex(ADJ_FREQ, %ld - %ld ppm\n",
+ outofrange_freq[i], outofrange_freq[i]>>16);
+ pass = -1;
+ goto out;
+ }
+ tx.modes = 0;
+ ret = adjtimex(&tx);
+ if (tx.freq == outofrange_freq[i]) {
+ printf("[FAIL]\n");
+ printf("ERROR: out of range value %ld actually set!\n",
+ tx.freq);
+ pass = -1;
+ goto out;
+ }
+ }
+
+
+ if (sizeof(long) == 8) { /* this case only applies to 64bit systems */
+ for (i = 0; i < NUM_FREQ_INVALID; i++) {
+ tx.modes = ADJ_FREQUENCY;
+ tx.freq = invalid_freq[i];
+ ret = adjtimex(&tx);
+ if (ret >= 0) {
+ printf("[FAIL]\n");
+ printf("Error: No failure on invalid ADJ_FREQUENCY %ld\n",
+ invalid_freq[i]);
+ pass = -1;
+ goto out;
+ }
+ }
+ }
+
+ printf("[OK]\n");
+out:
+ /* reset freq to zero */
+ tx.modes = ADJ_FREQUENCY;
+ tx.freq = 0;
+ ret = adjtimex(&tx);
+
+ return pass;
+}
+
+
+int main(int argc, char **argv)
+{
+ if (validate_freq())
+ return ksft_exit_fail();
+
+ return ksft_exit_pass();
+}
# No binaries, but make sure arg-less "make" doesn't trigger "run_tests"
all:
-run_tests: all
- ./test_user_copy.sh
+TEST_PROGS := test_user_copy.sh
+
+include ../lib.mk
# Makefile for vm selftests
-CC = $(CROSS_COMPILE)gcc
CFLAGS = -Wall
BINARIES = hugepage-mmap hugepage-shm map_hugetlb thuge-gen hugetlbfstest
BINARIES += transhuge-stress
%: %.c
$(CC) $(CFLAGS) -o $@ $^ -lrt
-run_tests: all
- @/bin/sh ./run_vmtests || (echo "vmtests: [FAIL]"; exit 1)
+TEST_PROGS := run_vmtests
+TEST_FILES := $(BINARIES)
+
+include ../lib.mk
clean:
$(RM) $(BINARIES)
projects / cascardo / linux.git / commitdiff