mirror of
https://github.com/torvalds/linux
synced 2024-09-06 18:01:05 +00:00
linux-kselftest-next-5.11-rc1
This kselftest update for Linux 5.11-rc1 consists of: - Much needed gpio test Makefile cleanup to various problems with test dependencies and build errors from Michael Ellerman - Enabling vDSO test on non x86 platforms from Vincenzo Frascino - Fix intel_pstate to replace deprecated ftime() usages with clock_gettime() from Tommi Rantala - cgroup test build fix on older releases from Sachin Sant - A couple of spelling mistake fixes -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEPZKym/RZuOCGeA/kCwJExA0NQxwFAl/ZFxIACgkQCwJExA0N QxyMPA//YHMceV0Q/fbqWeLG2ujs3WaARm+AIpx0oFckHQrEwWt/r5Vl2f9CwWI/ lXqsVI/bKpuoQsaMG15p7zA+jp+28+oXNQSdSLVJG+nfPcDhzIWbdb+UM905e6mJ SWBQaB3MRGIojUaxT8mCGMK2Edmm/tJH2yQdyXic7FcFmKKQQo92wxg4QD3YU9BK EhxfZZMmzMw1CtUlvx8PPEviF4IjU5X7AnHlAIx/Tw8edfRQ72UGjP9g6ynW4BYW c2yLuB2SDic9YzGHCqtzw+7H6OokWpYjIvicFeTHhOaRRZ/0HH168EngZB5B1ELv K3fJzls6eXdtYGGMYDNf640naTzsbjCg+i65nkQsvlkiZK1ow5NMgfKgJlpKBBqf 9pFLUnO8cegmgS+Iu+PXY6a7Rgg7XVKpkDCRGRix+hE5Ooc82w42UnWtO52rKG0f vawprd465wnm+/6VpidnEteEhQAx4qUoh6AIdowNDLXEAWlYWcb1IXHeTFufY9xU YWi52P813dyTzkGyFfNH+ardlQihLVZW2zlPY0PfxDeSfyaIVyIh06pHMB1uG2qa NQ+1OH7p2ACEq8CNhlqeHXmb1po2VSB5ChP7aVvGUajdfaXE5apeRraHhiT/Q9ls 24xyV3upUEOTrWl/2AdHMjQ/ukxgCaiLyPfyL+BJhTk4CSI/hnc= =7+0j -----END PGP SIGNATURE----- Merge tag 'linux-kselftest-next-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull Kselftest updates from Shuah Khan: - Much needed gpio test Makefile cleanup to various problems with test dependencies and build errors from Michael Ellerman - Enabling vDSO test on non x86 platforms from Vincenzo Frascino - Fix intel_pstate to replace deprecated ftime() usages with clock_gettime() from Tommi Rantala - cgroup test build fix on older releases from Sachin Sant - A couple of spelling mistake fixes * tag 'linux-kselftest-next-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests/cgroup: Fix build on older distros selftests/run_kselftest.sh: fix dry-run typo tool: selftests: fix spelling typo of 'writting' selftests/memfd: Fix implicit declaration warnings selftests: intel_pstate: ftime() is deprecated selftests/gpio: Add to CLEAN rule rather than overriding selftests/gpio: Fix build when source tree is read only selftests/gpio: Move include of lib.mk up selftests/gpio: Use TEST_GEN_PROGS_EXTENDED kselftest: Extend vdso correctness test to clock_gettime64 kselftest: Move test_vdso to the vDSO test suite kselftest: Extend vDSO selftest to clock_getres kselftest: Extend vDSO selftest kselftest: Enable vDSO test on non x86 platforms
This commit is contained in:
Linus Torvalds
commit
7194850efa
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@ -66,6 +66,7 @@ endif
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TARGETS += tmpfs
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TARGETS += tpm2
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TARGETS += user
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TARGETS += vDSO
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TARGETS += vm
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TARGETS += x86
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TARGETS += zram
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@ -337,13 +337,13 @@ pid_t clone_into_cgroup(int cgroup_fd)
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#ifdef CLONE_ARGS_SIZE_VER2
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pid_t pid;
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struct clone_args args = {
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struct __clone_args args = {
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.flags = CLONE_INTO_CGROUP,
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.exit_signal = SIGCHLD,
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.cgroup = cgroup_fd,
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};
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pid = sys_clone3(&args, sizeof(struct clone_args));
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pid = sys_clone3(&args, sizeof(struct __clone_args));
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/*
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* Verify that this is a genuine test failure:
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* ENOSYS -> clone3() not available
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@ -11,22 +11,21 @@ LDLIBS += $(VAR_LDLIBS)
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TEST_PROGS := gpio-mockup.sh
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TEST_FILES := gpio-mockup-sysfs.sh
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TEST_PROGS_EXTENDED := gpio-mockup-chardev
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GPIODIR := $(realpath ../../../gpio)
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GPIOOBJ := gpio-utils.o
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all: $(TEST_PROGS_EXTENDED)
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override define CLEAN
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$(RM) $(TEST_PROGS_EXTENDED)
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$(MAKE) -C $(GPIODIR) OUTPUT=$(GPIODIR)/ clean
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endef
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TEST_GEN_PROGS_EXTENDED := gpio-mockup-chardev
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KSFT_KHDR_INSTALL := 1
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include ../lib.mk
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$(TEST_PROGS_EXTENDED): $(GPIODIR)/$(GPIOOBJ)
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GPIODIR := $(realpath ../../../gpio)
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GPIOOUT := $(OUTPUT)/tools-gpio/
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GPIOOBJ := $(GPIOOUT)/gpio-utils.o
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$(GPIODIR)/$(GPIOOBJ):
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$(MAKE) OUTPUT=$(GPIODIR)/ -C $(GPIODIR)
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CLEAN += ; $(RM) -rf $(GPIOOUT)
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$(TEST_GEN_PROGS_EXTENDED): $(GPIOOBJ)
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$(GPIOOUT):
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mkdir -p $@
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$(GPIOOBJ): $(GPIOOUT)
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$(MAKE) OUTPUT=$(GPIOOUT) -C $(GPIODIR)
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@ -10,8 +10,12 @@
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#include <sched.h>
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#include <errno.h>
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#include <string.h>
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#include <time.h>
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#include "../kselftest.h"
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#define MSEC_PER_SEC 1000L
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#define NSEC_PER_MSEC 1000000L
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void usage(char *name) {
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printf ("Usage: %s cpunum\n", name);
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}
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@ -22,7 +26,7 @@ int main(int argc, char **argv) {
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long long tsc, old_tsc, new_tsc;
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long long aperf, old_aperf, new_aperf;
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long long mperf, old_mperf, new_mperf;
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struct timeb before, after;
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struct timespec before, after;
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long long int start, finish, total;
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cpu_set_t cpuset;
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@ -55,7 +59,10 @@ int main(int argc, char **argv) {
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return 1;
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}
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ftime(&before);
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if (clock_gettime(CLOCK_MONOTONIC, &before) < 0) {
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perror("clock_gettime");
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return 1;
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}
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pread(fd, &old_tsc, sizeof(old_tsc), 0x10);
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pread(fd, &old_aperf, sizeof(old_mperf), 0xe7);
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pread(fd, &old_mperf, sizeof(old_aperf), 0xe8);
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@ -64,7 +71,10 @@ int main(int argc, char **argv) {
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sqrt(i);
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}
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ftime(&after);
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if (clock_gettime(CLOCK_MONOTONIC, &after) < 0) {
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perror("clock_gettime");
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return 1;
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}
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pread(fd, &new_tsc, sizeof(new_tsc), 0x10);
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pread(fd, &new_aperf, sizeof(new_mperf), 0xe7);
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pread(fd, &new_mperf, sizeof(new_aperf), 0xe8);
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@ -73,11 +83,11 @@ int main(int argc, char **argv) {
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aperf = new_aperf-old_aperf;
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mperf = new_mperf-old_mperf;
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start = before.time*1000 + before.millitm;
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finish = after.time*1000 + after.millitm;
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start = before.tv_sec*MSEC_PER_SEC + before.tv_nsec/NSEC_PER_MSEC;
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finish = after.tv_sec*MSEC_PER_SEC + after.tv_nsec/NSEC_PER_MSEC;
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total = finish - start;
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printf("runTime: %4.2f\n", 1.0*total/1000);
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printf("runTime: %4.2f\n", 1.0*total/MSEC_PER_SEC);
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printf("freq: %7.0f\n", tsc / (1.0*aperf / (1.0 * mperf)) / total);
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return 0;
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}
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@ -20,7 +20,7 @@
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#include <inttypes.h>
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#include <limits.h>
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#include <linux/falloc.h>
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#include <linux/fcntl.h>
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#include <fcntl.h>
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#include <linux/memfd.h>
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#include <sched.h>
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#include <stdio.h>
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@ -6,7 +6,7 @@
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#include <inttypes.h>
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#include <limits.h>
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#include <linux/falloc.h>
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#include <linux/fcntl.h>
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#include <fcntl.h>
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#include <linux/memfd.h>
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#include <sched.h>
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#include <stdio.h>
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@ -48,7 +48,7 @@ while true; do
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-l | --list)
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echo "$available"
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exit 0 ;;
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-n | --dry-run)
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-d | --dry-run)
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dryrun="echo"
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shift ;;
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-h | --help)
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@ -5,13 +5,16 @@ uname_M := $(shell uname -m 2>/dev/null || echo not)
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ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/x86/ -e s/x86_64/x86/)
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TEST_GEN_PROGS := $(OUTPUT)/vdso_test_gettimeofday $(OUTPUT)/vdso_test_getcpu
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ifeq ($(ARCH),x86)
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TEST_GEN_PROGS += $(OUTPUT)/vdso_test_abi
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TEST_GEN_PROGS += $(OUTPUT)/vdso_test_clock_getres
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ifeq ($(ARCH),$(filter $(ARCH),x86 x86_64))
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TEST_GEN_PROGS += $(OUTPUT)/vdso_standalone_test_x86
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endif
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TEST_GEN_PROGS += $(OUTPUT)/vdso_test_correctness
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ifndef CROSS_COMPILE
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CFLAGS := -std=gnu99
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CFLAGS_vdso_standalone_test_x86 := -nostdlib -fno-asynchronous-unwind-tables -fno-stack-protector
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LDFLAGS_vdso_test_correctness := -ldl
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ifeq ($(CONFIG_X86_32),y)
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LDLIBS += -lgcc_s
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endif
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@ -19,9 +22,14 @@ endif
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all: $(TEST_GEN_PROGS)
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$(OUTPUT)/vdso_test_gettimeofday: parse_vdso.c vdso_test_gettimeofday.c
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$(OUTPUT)/vdso_test_getcpu: parse_vdso.c vdso_test_getcpu.c
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$(OUTPUT)/vdso_test_abi: parse_vdso.c vdso_test_abi.c
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$(OUTPUT)/vdso_test_clock_getres: vdso_test_clock_getres.c
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$(OUTPUT)/vdso_standalone_test_x86: vdso_standalone_test_x86.c parse_vdso.c
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$(CC) $(CFLAGS) $(CFLAGS_vdso_standalone_test_x86) \
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vdso_standalone_test_x86.c parse_vdso.c \
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-o $@
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endif
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$(OUTPUT)/vdso_test_correctness: vdso_test_correctness.c
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$(CC) $(CFLAGS) \
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vdso_test_correctness.c \
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-o $@ \
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$(LDFLAGS_vdso_test_correctness)
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92
tools/testing/selftests/vDSO/vdso_config.h
Normal file
92
tools/testing/selftests/vDSO/vdso_config.h
Normal file
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@ -0,0 +1,92 @@
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/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* vdso_config.h: Configuration options for vDSO tests.
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* Copyright (c) 2019 Arm Ltd.
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*/
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#ifndef __VDSO_CONFIG_H__
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#define __VDSO_CONFIG_H__
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/*
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* Each architecture exports its vDSO implementation with different names
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* and a different version from the others, so we need to handle it as a
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* special case.
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*/
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#if defined(__arm__)
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#define VDSO_VERSION 0
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#define VDSO_NAMES 1
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#define VDSO_32BIT 1
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#elif defined(__aarch64__)
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#define VDSO_VERSION 3
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#define VDSO_NAMES 0
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#elif defined(__powerpc__)
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#define VDSO_VERSION 1
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#define VDSO_NAMES 0
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#define VDSO_32BIT 1
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#elif defined(__powerpc64__)
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#define VDSO_VERSION 1
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#define VDSO_NAMES 0
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#elif defined (__s390__)
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#define VDSO_VERSION 2
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#define VDSO_NAMES 0
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#define VDSO_32BIT 1
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#elif defined (__s390X__)
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#define VDSO_VERSION 2
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#define VDSO_NAMES 0
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#elif defined(__mips__)
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#define VDSO_VERSION 0
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#define VDSO_NAMES 1
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#define VDSO_32BIT 1
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#elif defined(__sparc__)
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#define VDSO_VERSION 0
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#define VDSO_NAMES 1
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#define VDSO_32BIT 1
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#elif defined(__i386__)
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#define VDSO_VERSION 0
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#define VDSO_NAMES 1
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#define VDSO_32BIT 1
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#elif defined(__x86_64__)
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#define VDSO_VERSION 0
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#define VDSO_NAMES 1
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#elif defined(__riscv__)
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#define VDSO_VERSION 5
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#define VDSO_NAMES 1
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#define VDSO_32BIT 1
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#else /* nds32 */
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#define VDSO_VERSION 4
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#define VDSO_NAMES 1
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#define VDSO_32BIT 1
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#endif
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static const char *versions[6] = {
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"LINUX_2.6",
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"LINUX_2.6.15",
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"LINUX_2.6.29",
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"LINUX_2.6.39",
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"LINUX_4",
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"LINUX_4.15",
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};
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static const char *names[2][6] = {
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{
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"__kernel_gettimeofday",
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"__kernel_clock_gettime",
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"__kernel_time",
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"__kernel_clock_getres",
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"__kernel_getcpu",
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#if defined(VDSO_32BIT)
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"__kernel_clock_gettime64",
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#endif
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},
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{
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"__vdso_gettimeofday",
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"__vdso_clock_gettime",
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"__vdso_time",
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"__vdso_clock_getres",
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"__vdso_getcpu",
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#if defined(VDSO_32BIT)
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"__vdso_clock_gettime64",
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#endif
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},
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};
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#endif /* __VDSO_CONFIG_H__ */
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244
tools/testing/selftests/vDSO/vdso_test_abi.c
Normal file
244
tools/testing/selftests/vDSO/vdso_test_abi.c
Normal file
|
|
@ -0,0 +1,244 @@
|
|||
// SPDX-License-Identifier: GPL-2.0
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/*
|
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* vdso_full_test.c: Sample code to test all the timers.
|
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* Copyright (c) 2019 Arm Ltd.
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*
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* Compile with:
|
||||
* gcc -std=gnu99 vdso_full_test.c parse_vdso.c
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*
|
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*/
|
||||
|
||||
#include <stdint.h>
|
||||
#include <elf.h>
|
||||
#include <stdio.h>
|
||||
#include <time.h>
|
||||
#include <sys/auxv.h>
|
||||
#include <sys/time.h>
|
||||
#define _GNU_SOURCE
|
||||
#include <unistd.h>
|
||||
#include <sys/syscall.h>
|
||||
|
||||
#include "../kselftest.h"
|
||||
#include "vdso_config.h"
|
||||
|
||||
extern void *vdso_sym(const char *version, const char *name);
|
||||
extern void vdso_init_from_sysinfo_ehdr(uintptr_t base);
|
||||
extern void vdso_init_from_auxv(void *auxv);
|
||||
|
||||
static const char *version;
|
||||
static const char **name;
|
||||
|
||||
typedef long (*vdso_gettimeofday_t)(struct timeval *tv, struct timezone *tz);
|
||||
typedef long (*vdso_clock_gettime_t)(clockid_t clk_id, struct timespec *ts);
|
||||
typedef long (*vdso_clock_getres_t)(clockid_t clk_id, struct timespec *ts);
|
||||
typedef time_t (*vdso_time_t)(time_t *t);
|
||||
|
||||
static int vdso_test_gettimeofday(void)
|
||||
{
|
||||
/* Find gettimeofday. */
|
||||
vdso_gettimeofday_t vdso_gettimeofday =
|
||||
(vdso_gettimeofday_t)vdso_sym(version, name[0]);
|
||||
|
||||
if (!vdso_gettimeofday) {
|
||||
printf("Could not find %s\n", name[0]);
|
||||
return KSFT_SKIP;
|
||||
}
|
||||
|
||||
struct timeval tv;
|
||||
long ret = vdso_gettimeofday(&tv, 0);
|
||||
|
||||
if (ret == 0) {
|
||||
printf("The time is %lld.%06lld\n",
|
||||
(long long)tv.tv_sec, (long long)tv.tv_usec);
|
||||
} else {
|
||||
printf("%s failed\n", name[0]);
|
||||
return KSFT_FAIL;
|
||||
}
|
||||
|
||||
return KSFT_PASS;
|
||||
}
|
||||
|
||||
static int vdso_test_clock_gettime(clockid_t clk_id)
|
||||
{
|
||||
/* Find clock_gettime. */
|
||||
vdso_clock_gettime_t vdso_clock_gettime =
|
||||
(vdso_clock_gettime_t)vdso_sym(version, name[1]);
|
||||
|
||||
if (!vdso_clock_gettime) {
|
||||
printf("Could not find %s\n", name[1]);
|
||||
return KSFT_SKIP;
|
||||
}
|
||||
|
||||
struct timespec ts;
|
||||
long ret = vdso_clock_gettime(clk_id, &ts);
|
||||
|
||||
if (ret == 0) {
|
||||
printf("The time is %lld.%06lld\n",
|
||||
(long long)ts.tv_sec, (long long)ts.tv_nsec);
|
||||
} else {
|
||||
printf("%s failed\n", name[1]);
|
||||
return KSFT_FAIL;
|
||||
}
|
||||
|
||||
return KSFT_PASS;
|
||||
}
|
||||
|
||||
static int vdso_test_time(void)
|
||||
{
|
||||
/* Find time. */
|
||||
vdso_time_t vdso_time =
|
||||
(vdso_time_t)vdso_sym(version, name[2]);
|
||||
|
||||
if (!vdso_time) {
|
||||
printf("Could not find %s\n", name[2]);
|
||||
return KSFT_SKIP;
|
||||
}
|
||||
|
||||
long ret = vdso_time(NULL);
|
||||
|
||||
if (ret > 0) {
|
||||
printf("The time in hours since January 1, 1970 is %lld\n",
|
||||
(long long)(ret / 3600));
|
||||
} else {
|
||||
printf("%s failed\n", name[2]);
|
||||
return KSFT_FAIL;
|
||||
}
|
||||
|
||||
return KSFT_PASS;
|
||||
}
|
||||
|
||||
static int vdso_test_clock_getres(clockid_t clk_id)
|
||||
{
|
||||
/* Find clock_getres. */
|
||||
vdso_clock_getres_t vdso_clock_getres =
|
||||
(vdso_clock_getres_t)vdso_sym(version, name[3]);
|
||||
|
||||
if (!vdso_clock_getres) {
|
||||
printf("Could not find %s\n", name[3]);
|
||||
return KSFT_SKIP;
|
||||
}
|
||||
|
||||
struct timespec ts, sys_ts;
|
||||
long ret = vdso_clock_getres(clk_id, &ts);
|
||||
|
||||
if (ret == 0) {
|
||||
printf("The resolution is %lld %lld\n",
|
||||
(long long)ts.tv_sec, (long long)ts.tv_nsec);
|
||||
} else {
|
||||
printf("%s failed\n", name[3]);
|
||||
return KSFT_FAIL;
|
||||
}
|
||||
|
||||
ret = syscall(SYS_clock_getres, clk_id, &sys_ts);
|
||||
|
||||
if ((sys_ts.tv_sec != ts.tv_sec) || (sys_ts.tv_nsec != ts.tv_nsec)) {
|
||||
printf("%s failed\n", name[3]);
|
||||
return KSFT_FAIL;
|
||||
}
|
||||
|
||||
return KSFT_PASS;
|
||||
}
|
||||
|
||||
const char *vdso_clock_name[12] = {
|
||||
"CLOCK_REALTIME",
|
||||
"CLOCK_MONOTONIC",
|
||||
"CLOCK_PROCESS_CPUTIME_ID",
|
||||
"CLOCK_THREAD_CPUTIME_ID",
|
||||
"CLOCK_MONOTONIC_RAW",
|
||||
"CLOCK_REALTIME_COARSE",
|
||||
"CLOCK_MONOTONIC_COARSE",
|
||||
"CLOCK_BOOTTIME",
|
||||
"CLOCK_REALTIME_ALARM",
|
||||
"CLOCK_BOOTTIME_ALARM",
|
||||
"CLOCK_SGI_CYCLE",
|
||||
"CLOCK_TAI",
|
||||
};
|
||||
|
||||
/*
|
||||
* This function calls vdso_test_clock_gettime and vdso_test_clock_getres
|
||||
* with different values for clock_id.
|
||||
*/
|
||||
static inline int vdso_test_clock(clockid_t clock_id)
|
||||
{
|
||||
int ret0, ret1;
|
||||
|
||||
ret0 = vdso_test_clock_gettime(clock_id);
|
||||
/* A skipped test is considered passed */
|
||||
if (ret0 == KSFT_SKIP)
|
||||
ret0 = KSFT_PASS;
|
||||
|
||||
ret1 = vdso_test_clock_getres(clock_id);
|
||||
/* A skipped test is considered passed */
|
||||
if (ret1 == KSFT_SKIP)
|
||||
ret1 = KSFT_PASS;
|
||||
|
||||
ret0 += ret1;
|
||||
|
||||
printf("clock_id: %s", vdso_clock_name[clock_id]);
|
||||
|
||||
if (ret0 > 0)
|
||||
printf(" [FAIL]\n");
|
||||
else
|
||||
printf(" [PASS]\n");
|
||||
|
||||
return ret0;
|
||||
}
|
||||
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
unsigned long sysinfo_ehdr = getauxval(AT_SYSINFO_EHDR);
|
||||
int ret;
|
||||
|
||||
if (!sysinfo_ehdr) {
|
||||
printf("AT_SYSINFO_EHDR is not present!\n");
|
||||
return KSFT_SKIP;
|
||||
}
|
||||
|
||||
version = versions[VDSO_VERSION];
|
||||
name = (const char **)&names[VDSO_NAMES];
|
||||
|
||||
printf("[vDSO kselftest] VDSO_VERSION: %s\n", version);
|
||||
|
||||
vdso_init_from_sysinfo_ehdr(getauxval(AT_SYSINFO_EHDR));
|
||||
|
||||
ret = vdso_test_gettimeofday();
|
||||
|
||||
#if _POSIX_TIMERS > 0
|
||||
|
||||
#ifdef CLOCK_REALTIME
|
||||
ret += vdso_test_clock(CLOCK_REALTIME);
|
||||
#endif
|
||||
|
||||
#ifdef CLOCK_BOOTTIME
|
||||
ret += vdso_test_clock(CLOCK_BOOTTIME);
|
||||
#endif
|
||||
|
||||
#ifdef CLOCK_TAI
|
||||
ret += vdso_test_clock(CLOCK_TAI);
|
||||
#endif
|
||||
|
||||
#ifdef CLOCK_REALTIME_COARSE
|
||||
ret += vdso_test_clock(CLOCK_REALTIME_COARSE);
|
||||
#endif
|
||||
|
||||
#ifdef CLOCK_MONOTONIC
|
||||
ret += vdso_test_clock(CLOCK_MONOTONIC);
|
||||
#endif
|
||||
|
||||
#ifdef CLOCK_MONOTONIC_RAW
|
||||
ret += vdso_test_clock(CLOCK_MONOTONIC_RAW);
|
||||
#endif
|
||||
|
||||
#ifdef CLOCK_MONOTONIC_COARSE
|
||||
ret += vdso_test_clock(CLOCK_MONOTONIC_COARSE);
|
||||
#endif
|
||||
|
||||
#endif
|
||||
|
||||
ret += vdso_test_time();
|
||||
|
||||
if (ret > 0)
|
||||
return KSFT_FAIL;
|
||||
|
||||
return KSFT_PASS;
|
||||
}
|
||||
124
tools/testing/selftests/vDSO/vdso_test_clock_getres.c
Normal file
124
tools/testing/selftests/vDSO/vdso_test_clock_getres.c
Normal file
|
|
@ -0,0 +1,124 @@
|
|||
// SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
|
||||
/*
|
||||
* vdso_clock_getres.c: Sample code to test clock_getres.
|
||||
* Copyright (c) 2019 Arm Ltd.
|
||||
*
|
||||
* Compile with:
|
||||
* gcc -std=gnu99 vdso_clock_getres.c
|
||||
*
|
||||
* Tested on ARM, ARM64, MIPS32, x86 (32-bit and 64-bit),
|
||||
* Power (32-bit and 64-bit), S390x (32-bit and 64-bit).
|
||||
* Might work on other architectures.
|
||||
*/
|
||||
|
||||
#define _GNU_SOURCE
|
||||
#include <elf.h>
|
||||
#include <err.h>
|
||||
#include <fcntl.h>
|
||||
#include <stdint.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <time.h>
|
||||
#include <sys/auxv.h>
|
||||
#include <sys/mman.h>
|
||||
#include <sys/time.h>
|
||||
#include <unistd.h>
|
||||
#include <sys/syscall.h>
|
||||
|
||||
#include "../kselftest.h"
|
||||
|
||||
static long syscall_clock_getres(clockid_t _clkid, struct timespec *_ts)
|
||||
{
|
||||
long ret;
|
||||
|
||||
ret = syscall(SYS_clock_getres, _clkid, _ts);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
const char *vdso_clock_name[12] = {
|
||||
"CLOCK_REALTIME",
|
||||
"CLOCK_MONOTONIC",
|
||||
"CLOCK_PROCESS_CPUTIME_ID",
|
||||
"CLOCK_THREAD_CPUTIME_ID",
|
||||
"CLOCK_MONOTONIC_RAW",
|
||||
"CLOCK_REALTIME_COARSE",
|
||||
"CLOCK_MONOTONIC_COARSE",
|
||||
"CLOCK_BOOTTIME",
|
||||
"CLOCK_REALTIME_ALARM",
|
||||
"CLOCK_BOOTTIME_ALARM",
|
||||
"CLOCK_SGI_CYCLE",
|
||||
"CLOCK_TAI",
|
||||
};
|
||||
|
||||
/*
|
||||
* This function calls clock_getres in vdso and by system call
|
||||
* with different values for clock_id.
|
||||
*
|
||||
* Example of output:
|
||||
*
|
||||
* clock_id: CLOCK_REALTIME [PASS]
|
||||
* clock_id: CLOCK_BOOTTIME [PASS]
|
||||
* clock_id: CLOCK_TAI [PASS]
|
||||
* clock_id: CLOCK_REALTIME_COARSE [PASS]
|
||||
* clock_id: CLOCK_MONOTONIC [PASS]
|
||||
* clock_id: CLOCK_MONOTONIC_RAW [PASS]
|
||||
* clock_id: CLOCK_MONOTONIC_COARSE [PASS]
|
||||
*/
|
||||
static inline int vdso_test_clock(unsigned int clock_id)
|
||||
{
|
||||
struct timespec x, y;
|
||||
|
||||
printf("clock_id: %s", vdso_clock_name[clock_id]);
|
||||
clock_getres(clock_id, &x);
|
||||
syscall_clock_getres(clock_id, &y);
|
||||
|
||||
if ((x.tv_sec != y.tv_sec) || (x.tv_nsec != y.tv_nsec)) {
|
||||
printf(" [FAIL]\n");
|
||||
return KSFT_FAIL;
|
||||
}
|
||||
|
||||
printf(" [PASS]\n");
|
||||
return KSFT_PASS;
|
||||
}
|
||||
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
int ret;
|
||||
|
||||
#if _POSIX_TIMERS > 0
|
||||
|
||||
#ifdef CLOCK_REALTIME
|
||||
ret = vdso_test_clock(CLOCK_REALTIME);
|
||||
#endif
|
||||
|
||||
#ifdef CLOCK_BOOTTIME
|
||||
ret += vdso_test_clock(CLOCK_BOOTTIME);
|
||||
#endif
|
||||
|
||||
#ifdef CLOCK_TAI
|
||||
ret += vdso_test_clock(CLOCK_TAI);
|
||||
#endif
|
||||
|
||||
#ifdef CLOCK_REALTIME_COARSE
|
||||
ret += vdso_test_clock(CLOCK_REALTIME_COARSE);
|
||||
#endif
|
||||
|
||||
#ifdef CLOCK_MONOTONIC
|
||||
ret += vdso_test_clock(CLOCK_MONOTONIC);
|
||||
#endif
|
||||
|
||||
#ifdef CLOCK_MONOTONIC_RAW
|
||||
ret += vdso_test_clock(CLOCK_MONOTONIC_RAW);
|
||||
#endif
|
||||
|
||||
#ifdef CLOCK_MONOTONIC_COARSE
|
||||
ret += vdso_test_clock(CLOCK_MONOTONIC_COARSE);
|
||||
#endif
|
||||
|
||||
#endif
|
||||
if (ret > 0)
|
||||
return KSFT_FAIL;
|
||||
|
||||
return KSFT_PASS;
|
||||
}
|
||||
|
|
@ -19,6 +19,10 @@
|
|||
#include <stdbool.h>
|
||||
#include <limits.h>
|
||||
|
||||
#include "vdso_config.h"
|
||||
|
||||
static const char **name;
|
||||
|
||||
#ifndef SYS_getcpu
|
||||
# ifdef __x86_64__
|
||||
# define SYS_getcpu 309
|
||||
|
|
@ -27,6 +31,17 @@
|
|||
# endif
|
||||
#endif
|
||||
|
||||
#ifndef __NR_clock_gettime64
|
||||
#define __NR_clock_gettime64 403
|
||||
#endif
|
||||
|
||||
#ifndef __kernel_timespec
|
||||
struct __kernel_timespec {
|
||||
long long tv_sec;
|
||||
long long tv_nsec;
|
||||
};
|
||||
#endif
|
||||
|
||||
/* max length of lines in /proc/self/maps - anything longer is skipped here */
|
||||
#define MAPS_LINE_LEN 128
|
||||
|
||||
|
|
@ -36,6 +51,10 @@ typedef int (*vgettime_t)(clockid_t, struct timespec *);
|
|||
|
||||
vgettime_t vdso_clock_gettime;
|
||||
|
||||
typedef int (*vgettime64_t)(clockid_t, struct __kernel_timespec *);
|
||||
|
||||
vgettime64_t vdso_clock_gettime64;
|
||||
|
||||
typedef long (*vgtod_t)(struct timeval *tv, struct timezone *tz);
|
||||
|
||||
vgtod_t vdso_gettimeofday;
|
||||
|
|
@ -99,17 +118,23 @@ static void fill_function_pointers()
|
|||
return;
|
||||
}
|
||||
|
||||
vdso_getcpu = (getcpu_t)dlsym(vdso, "__vdso_getcpu");
|
||||
vdso_getcpu = (getcpu_t)dlsym(vdso, name[4]);
|
||||
if (!vdso_getcpu)
|
||||
printf("Warning: failed to find getcpu in vDSO\n");
|
||||
|
||||
vgetcpu = (getcpu_t) vsyscall_getcpu();
|
||||
|
||||
vdso_clock_gettime = (vgettime_t)dlsym(vdso, "__vdso_clock_gettime");
|
||||
vdso_clock_gettime = (vgettime_t)dlsym(vdso, name[1]);
|
||||
if (!vdso_clock_gettime)
|
||||
printf("Warning: failed to find clock_gettime in vDSO\n");
|
||||
|
||||
vdso_gettimeofday = (vgtod_t)dlsym(vdso, "__vdso_gettimeofday");
|
||||
#if defined(VDSO_32BIT)
|
||||
vdso_clock_gettime64 = (vgettime64_t)dlsym(vdso, name[5]);
|
||||
if (!vdso_clock_gettime64)
|
||||
printf("Warning: failed to find clock_gettime64 in vDSO\n");
|
||||
#endif
|
||||
|
||||
vdso_gettimeofday = (vgtod_t)dlsym(vdso, name[0]);
|
||||
if (!vdso_gettimeofday)
|
||||
printf("Warning: failed to find gettimeofday in vDSO\n");
|
||||
|
||||
|
|
@ -126,6 +151,11 @@ static inline int sys_clock_gettime(clockid_t id, struct timespec *ts)
|
|||
return syscall(__NR_clock_gettime, id, ts);
|
||||
}
|
||||
|
||||
static inline int sys_clock_gettime64(clockid_t id, struct __kernel_timespec *ts)
|
||||
{
|
||||
return syscall(__NR_clock_gettime64, id, ts);
|
||||
}
|
||||
|
||||
static inline int sys_gettimeofday(struct timeval *tv, struct timezone *tz)
|
||||
{
|
||||
return syscall(__NR_gettimeofday, tv, tz);
|
||||
|
|
@ -191,6 +221,15 @@ static bool ts_leq(const struct timespec *a, const struct timespec *b)
|
|||
return a->tv_nsec <= b->tv_nsec;
|
||||
}
|
||||
|
||||
static bool ts64_leq(const struct __kernel_timespec *a,
|
||||
const struct __kernel_timespec *b)
|
||||
{
|
||||
if (a->tv_sec != b->tv_sec)
|
||||
return a->tv_sec < b->tv_sec;
|
||||
else
|
||||
return a->tv_nsec <= b->tv_nsec;
|
||||
}
|
||||
|
||||
static bool tv_leq(const struct timeval *a, const struct timeval *b)
|
||||
{
|
||||
if (a->tv_sec != b->tv_sec)
|
||||
|
|
@ -254,7 +293,10 @@ static void test_one_clock_gettime(int clock, const char *name)
|
|||
if (!ts_leq(&start, &vdso) || !ts_leq(&vdso, &end)) {
|
||||
printf("[FAIL]\tTimes are out of sequence\n");
|
||||
nerrs++;
|
||||
return;
|
||||
}
|
||||
|
||||
printf("[OK]\tTest Passed.\n");
|
||||
}
|
||||
|
||||
static void test_clock_gettime(void)
|
||||
|
|
@ -275,6 +317,70 @@ static void test_clock_gettime(void)
|
|||
test_one_clock_gettime(INT_MAX, "invalid");
|
||||
}
|
||||
|
||||
static void test_one_clock_gettime64(int clock, const char *name)
|
||||
{
|
||||
struct __kernel_timespec start, vdso, end;
|
||||
int vdso_ret, end_ret;
|
||||
|
||||
printf("[RUN]\tTesting clock_gettime64 for clock %s (%d)...\n", name, clock);
|
||||
|
||||
if (sys_clock_gettime64(clock, &start) < 0) {
|
||||
if (errno == EINVAL) {
|
||||
vdso_ret = vdso_clock_gettime64(clock, &vdso);
|
||||
if (vdso_ret == -EINVAL) {
|
||||
printf("[OK]\tNo such clock.\n");
|
||||
} else {
|
||||
printf("[FAIL]\tNo such clock, but __vdso_clock_gettime64 returned %d\n", vdso_ret);
|
||||
nerrs++;
|
||||
}
|
||||
} else {
|
||||
printf("[WARN]\t clock_gettime64(%d) syscall returned error %d\n", clock, errno);
|
||||
}
|
||||
return;
|
||||
}
|
||||
|
||||
vdso_ret = vdso_clock_gettime64(clock, &vdso);
|
||||
end_ret = sys_clock_gettime64(clock, &end);
|
||||
|
||||
if (vdso_ret != 0 || end_ret != 0) {
|
||||
printf("[FAIL]\tvDSO returned %d, syscall errno=%d\n",
|
||||
vdso_ret, errno);
|
||||
nerrs++;
|
||||
return;
|
||||
}
|
||||
|
||||
printf("\t%llu.%09ld %llu.%09ld %llu.%09ld\n",
|
||||
(unsigned long long)start.tv_sec, start.tv_nsec,
|
||||
(unsigned long long)vdso.tv_sec, vdso.tv_nsec,
|
||||
(unsigned long long)end.tv_sec, end.tv_nsec);
|
||||
|
||||
if (!ts64_leq(&start, &vdso) || !ts64_leq(&vdso, &end)) {
|
||||
printf("[FAIL]\tTimes are out of sequence\n");
|
||||
nerrs++;
|
||||
return;
|
||||
}
|
||||
|
||||
printf("[OK]\tTest Passed.\n");
|
||||
}
|
||||
|
||||
static void test_clock_gettime64(void)
|
||||
{
|
||||
if (!vdso_clock_gettime64) {
|
||||
printf("[SKIP]\tNo vDSO, so skipping clock_gettime64() tests\n");
|
||||
return;
|
||||
}
|
||||
|
||||
for (int clock = 0; clock < sizeof(clocknames) / sizeof(clocknames[0]);
|
||||
clock++) {
|
||||
test_one_clock_gettime64(clock, clocknames[clock]);
|
||||
}
|
||||
|
||||
/* Also test some invalid clock ids */
|
||||
test_one_clock_gettime64(-1, "invalid");
|
||||
test_one_clock_gettime64(INT_MIN, "invalid");
|
||||
test_one_clock_gettime64(INT_MAX, "invalid");
|
||||
}
|
||||
|
||||
static void test_gettimeofday(void)
|
||||
{
|
||||
struct timeval start, vdso, end;
|
||||
|
|
@ -327,9 +433,12 @@ static void test_gettimeofday(void)
|
|||
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
name = (const char **)&names[VDSO_NAMES];
|
||||
|
||||
fill_function_pointers();
|
||||
|
||||
test_clock_gettime();
|
||||
test_clock_gettime64();
|
||||
test_gettimeofday();
|
||||
|
||||
/*
|
||||
|
|
@ -906,7 +906,7 @@ static int faulting_process(int signal_test)
|
|||
count_verify[nr]);
|
||||
}
|
||||
/*
|
||||
* Trigger write protection if there is by writting
|
||||
* Trigger write protection if there is by writing
|
||||
* the same value back.
|
||||
*/
|
||||
*area_count(area_dst, nr) = count;
|
||||
|
|
@ -934,7 +934,7 @@ static int faulting_process(int signal_test)
|
|||
count_verify[nr]); exit(1);
|
||||
}
|
||||
/*
|
||||
* Trigger write protection if there is by writting
|
||||
* Trigger write protection if there is by writing
|
||||
* the same value back.
|
||||
*/
|
||||
*area_count(area_dst, nr) = count;
|
||||
|
|
|
|||
|
|
@ -12,7 +12,7 @@ CAN_BUILD_WITH_NOPIE := $(shell ./check_cc.sh $(CC) trivial_program.c -no-pie)
|
|||
|
||||
TARGETS_C_BOTHBITS := single_step_syscall sysret_ss_attrs syscall_nt test_mremap_vdso \
|
||||
check_initial_reg_state sigreturn iopl ioperm \
|
||||
test_vdso test_vsyscall mov_ss_trap \
|
||||
test_vsyscall mov_ss_trap \
|
||||
syscall_arg_fault fsgsbase_restore
|
||||
TARGETS_C_32BIT_ONLY := entry_from_vm86 test_syscall_vdso unwind_vdso \
|
||||
test_FCMOV test_FCOMI test_FISTTP \
|
||||
|
|
|
|||
Loading…
Reference in a new issue