Commit 4541fec3 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'linux-kselftest-4.1-rc1' of... 

Merge tag 'linux-kselftest-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kselftest updates from Shuah Khan:
 "This is a milestone update in a sense.  Several new tests and install
  and packaging support is added in this update.

  This update adds install and packaging tools developed on top of
  back-end shared logic enhancemnets to run and install tests.  In
  addition several timer tests are added.

   - New timer tests from John Stultz

   - rtc test from Prarit Bhargava

   - Enhancements to un and install tests from Michael Ellerman

   - Install and packaging tools from Shuah Khan

   - Cross-compilation enablement from Tyler Baker

   - A couple of bug fixes"

* tag 'linux-kselftest-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (42 commits)
  ftracetest: Do not use usleep directly
  selftest/mqueue: enable cross compilation
  selftest/ipc: enable cross compilation
  selftest/memfd: include default header install path
  selftest/mount: enable cross compilation
  selftest/memfd: enable cross compilation
  kselftests: timers: Make set-timer-lat fail more gracefully for !CAP_WAKE_ALARM
  selftests: Change memory on-off-test.sh name to be unique
  selftests: change cpu on-off-test.sh name to be unique
  selftests/mount: Make git ignore all binaries in mount test suite
  kselftests: timers: Reduce default runtime on inconsistency-check and set-timer-lat
  ftracetest: Convert exit -1 to exit $FAIL
  ftracetest: Cope properly with stack tracer not being enabled
  tools, update rtctest.c to verify passage of time
  Documentation, split up rtc.txt into documentation and test file
  selftests: Add tool to generate kselftest tar archive
  selftests: Add kselftest install tool
  selftests: Set CC using CROSS_COMPILE once in lib.mk
  selftests: Add install support for the powerpc tests
  selftests/timers: Use shared logic to run and install tests
  ...
parents 39a88044 2bfd4d1f

Documentation/rtc.txt

+1 −263
Original line number Diff line number Diff line
@@ -204,266 +204,4 @@ Some common examples: 


    *	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!

MAINTAINERS

+1 −0
Original line number Diff line number Diff line
@@ -8559,6 +8559,7 @@ F: include/uapi/linux/timex.h 
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>

tools/testing/selftests/Makefile

+33 −0
Original line number Diff line number Diff line
@@ -55,7 +55,40 @@ clean_hotplug: 
		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

tools/testing/selftests/breakpoints/Makefile

+3 −2
Original line number Diff line number Diff line
@@ -16,8 +16,9 @@ else 
	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

tools/testing/selftests/cpu-hotplug/Makefile

+4 −3
Original line number Diff line number Diff line 
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:

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