Differential D24652 Diff 76815 tests/sys/posixshm/posixshm_test.c

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tests/sys/posixshm/posixshm_test.c

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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF		* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.		* SUCH DAMAGE.
*/		*/

#include <sys/cdefs.h>		#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");		__FBSDID("$FreeBSD$");

#include <sys/param.h>		#include <sys/param.h>
		#include <sys/ioctl.h>
#include <sys/mman.h>		#include <sys/mman.h>
#include <sys/resource.h>		#include <sys/resource.h>
#include <sys/stat.h>		#include <sys/stat.h>
#include <sys/syscall.h>		#include <sys/syscall.h>
#include <sys/wait.h>		#include <sys/wait.h>

#include <ctype.h>		#include <ctype.h>
#include <errno.h>		#include <errno.h>
▲ Show 20 Lines • Show All 912 Lines • ▼ Show 20 Lines	ATF_TC_BODY(fallocate, tc)
ATF_REQUIRE_MSG((error = posix_fallocate(fd, sz, sz)) == 0,		ATF_REQUIRE_MSG((error = posix_fallocate(fd, sz, sz)) == 0,
"posix_fallocate failed; error=%d", error);		"posix_fallocate failed; error=%d", error);
ATF_REQUIRE(fstat(fd, &st) == 0);		ATF_REQUIRE(fstat(fd, &st) == 0);
ATF_REQUIRE(st.st_size == (sz * 2));		ATF_REQUIRE(st.st_size == (sz * 2));

close(fd);		close(fd);
}		}

		static int
		shm_open_large(int psind, int policy, size_t sz)
		{
		int error, fd;

		fd = shm_create_largepage(SHM_ANON, O_CREAT \| O_RDWR, psind, policy, 0);
		ATF_REQUIRE_MSG(fd >= 0, "shm_create_largepage failed; errno=%d", errno);

		error = ftruncate(fd, sz);
		if (error != 0 && errno == ENOMEM)
		/* XXX depends on alloc policy */
		atf_tc_skip("failed to allocate %zu-byte superpage", sz);
		ATF_REQUIRE_MSG(error == 0, "ftruncate failed; errno=%d", errno);

		return (fd);
		}

		static int
		pagesizes(size_t ps[MAXPAGESIZES])
		{
		int pscnt;

		pscnt = getpagesizes(ps, MAXPAGESIZES);
		ATF_REQUIRE_MSG(pscnt != -1, "getpagesizes failed; errno=%d", errno);
		ATF_REQUIRE_MSG(ps[0] == PAGE_SIZE, "psind 0 is %zu", ps[0]);
		if (pscnt == 1)
		atf_tc_skip("no large page support");

		return (pscnt);
		}

		ATF_TC_WITHOUT_HEAD(largepage_basic);
		ATF_TC_BODY(largepage_basic, tc)
		{
		char zeroes[PAGE_SIZE];
		char addr, vec;
		size_t ps[MAXPAGESIZES];
		int error, fd, pscnt;

		if (MAXPAGESIZES == 1)
		atf_tc_pass();

		memset(zeroes, 0, PAGE_SIZE);

		pscnt = pagesizes(ps);
		for (int i = 1; i < pscnt; i++) {
		fd = shm_open_large(i, SHM_LARGEPAGE_ALLOC_DEFAULT, ps[i]);

		addr = mmap(NULL, ps[i], PROT_READ \| PROT_WRITE, MAP_SHARED, fd,
		0);
		ATF_REQUIRE_MSG(addr != MAP_FAILED,
		"mmap(%zu bytes) failed; errno=%d", ps[i], errno);
		ATF_REQUIRE_MSG(((uintptr_t)addr & (ps[i] - 1)) == 0,
		"mmap(%zu bytes) returned unaligned mapping; addr=%p",
		ps[i], addr);

		/* Force a page fault. */
		(volatile char )addr = 0;

		vec = malloc(ps[i] / PAGE_SIZE);
		ATF_REQUIRE(vec != NULL);
		error = mincore(addr, ps[i], vec);
		ATF_REQUIRE_MSG(error == 0, "mincore failed; errno=%d", errno);

		/* Verify that all pages in the run are mapped. */
		for (size_t p = 0; p < ps[i] / PAGE_SIZE; p++) {
		ATF_REQUIRE_MSG((vec[p] & MINCORE_INCORE) != 0,
		"page %zu is not mapped", p);
		ATF_REQUIRE_MSG((vec[p] & MINCORE_PSIND(i)) != 0,
		"page %zu is not in a %zu-byte superpage",
		p, ps[i]);
		}

		/* Validate zeroing. */
		for (size_t p = 0; p < ps[i] / PAGE_SIZE; p++) {
		ATF_REQUIRE_MSG(memcmp(addr + p * PAGE_SIZE, zeroes,
		PAGE_SIZE) == 0, "page %zu miscompare", p);
		}

		free(vec);
		ATF_REQUIRE(munmap(addr, ps[i]) == 0);
		ATF_REQUIRE(close(fd) == 0);
		}
		}

		ATF_TC_WITHOUT_HEAD(largepage_config);
		ATF_TC_BODY(largepage_config, tc)
		{
		struct shm_largepage_conf lpc;
		char addr, buf;
		size_t ps[MAXPAGESIZES];
		int error, fd, pscnt;

		if (MAXPAGESIZES == 1)
		atf_tc_pass();

		pscnt = pagesizes(ps);

		fd = shm_open(SHM_ANON, O_CREAT \| O_RDWR, 0);
		ATF_REQUIRE_MSG(fd >= 0, "shm_open failed; error=%d", errno);

		/*
		* Configure a large page policy for an object created without
		* SHM_LARGEPAGE.
		*/
		lpc.psind = 1;
		lpc.alloc_policy = SHM_LARGEPAGE_ALLOC_DEFAULT;
		error = ioctl(fd, FIOSSHMLPGCNF, &lpc);
		ATF_REQUIRE(error != 0);
		ATF_REQUIRE_MSG(errno == ENOTTY, "ioctl(FIOSSHMLPGCNF) returned %d",
		errno);
		ATF_REQUIRE(close(fd) == 0);

		/*
		* Create a largepage object and try to use it without actually
		* configuring anything.
		*/
		fd = syscall(SYS_shm_open2, SHM_ANON, O_CREAT \| O_RDWR, 0,
		SHM_LARGEPAGE, NULL);
		ATF_REQUIRE_MSG(fd >= 0, "shm_open2 failed; error=%d", errno);

		error = ftruncate(fd, ps[1]);
		ATF_REQUIRE(error != 0);
		ATF_REQUIRE_MSG(errno == EINVAL, "ftruncate returned %d", errno);

		addr = mmap(NULL, ps[1], PROT_READ \| PROT_WRITE, MAP_SHARED, fd, 0);
		ATF_REQUIRE(addr == MAP_FAILED);
		ATF_REQUIRE_MSG(errno == EINVAL, "mmap returned %d", errno);
		addr = mmap(NULL, 0, PROT_READ \| PROT_WRITE, MAP_SHARED, fd, 0);
		ATF_REQUIRE(addr == MAP_FAILED);
		ATF_REQUIRE_MSG(errno == EINVAL, "mmap returned %d", errno);

		buf = calloc(1, PAGE_SIZE);
		ATF_REQUIRE(buf != NULL);
		ATF_REQUIRE(write(fd, buf, PAGE_SIZE) == -1);
		ATF_REQUIRE_MSG(errno == EINVAL, "write returned %d", errno);
		free(buf);
		buf = calloc(1, ps[1]);
		ATF_REQUIRE(buf != NULL);
		ATF_REQUIRE(write(fd, buf, ps[1]) == -1);
		ATF_REQUIRE_MSG(errno == EINVAL, "write returned %d", errno);
		free(buf);

		error = posix_fallocate(fd, 0, PAGE_SIZE);
		ATF_REQUIRE_MSG(error == EINVAL, "posix_fallocate returned %d", error);

		ATF_REQUIRE(close(fd) == 0);
		}

		ATF_TC_WITHOUT_HEAD(largepage_mmap);
		ATF_TC_BODY(largepage_mmap, tc)
		{
		char addr, addr1, *vec;
		size_t ps[MAXPAGESIZES];
		int fd, pscnt;

		if (MAXPAGESIZES == 1)
		atf_tc_pass();

		pscnt = pagesizes(ps);
		for (int i = 1; i < pscnt; i++) {
		fd = shm_open_large(i, SHM_LARGEPAGE_ALLOC_DEFAULT, ps[i]);

		/* For mincore(). */
		vec = malloc(ps[i]);
		ATF_REQUIRE(vec != NULL);

		/*
		* Wrong mapping size.
		*/
		addr = mmap(NULL, ps[i - 1], PROT_READ \| PROT_WRITE, MAP_SHARED,
		fd, 0);
		ATF_REQUIRE_MSG(addr == MAP_FAILED, "mmap(%zu bytes) succeeded",
		ps[i - 1]);
		ATF_REQUIRE_MSG(errno == EINVAL, "mmap(%zu bytes) error=%d",
		ps[i - 1], errno);

		/*
		* Fixed mappings.
		*/
		addr = mmap(NULL, ps[i], PROT_READ \| PROT_WRITE, MAP_SHARED, fd,
		0);
		ATF_REQUIRE_MSG(addr != MAP_FAILED,
		"mmap(%zu bytes) failed; errno=%d", ps[i], errno);
		ATF_REQUIRE_MSG(((uintptr_t)addr & (ps[i] - 1)) == 0,
		"mmap(%zu bytes) returned unaligned mapping; addr=%p",
		ps[i], addr);

		/* Try mapping a small page with anonymous memory. */
		addr1 = mmap(addr, ps[i - 1], PROT_READ \| PROT_WRITE,
		MAP_PRIVATE \| MAP_ANON \| MAP_FIXED, -1, 0);
		ATF_REQUIRE_MSG(addr1 == MAP_FAILED,
		"anon mmap(%zu bytes) succeeded", ps[i - 1]);
		ATF_REQUIRE_MSG(errno == EINVAL, "mmap returned %d", errno);

		/* Check MAP_EXCL when creating a second largepage mapping. */
		addr1 = mmap(addr, ps[i], PROT_READ \| PROT_WRITE,
		MAP_SHARED \| MAP_FIXED \| MAP_EXCL, fd, 0);
		ATF_REQUIRE_MSG(addr1 == MAP_FAILED,
		"remap(%zu bytes) succeeded", ps[i]);
		/* XXX wrong errno */
		ATF_REQUIRE_MSG(errno == ENOSPC, "mmap returned %d", errno);

		/* Overwrite a largepage mapping with a lagepage mapping. */
		addr1 = mmap(addr, ps[i], PROT_READ \| PROT_WRITE,
		MAP_SHARED \| MAP_FIXED, fd, 0);
		ATF_REQUIRE_MSG(addr1 != MAP_FAILED,
		"mmap(%zu bytes) failed; errno=%d", ps[i], errno);
		ATF_REQUIRE_MSG(addr == addr1,
		"mmap(%zu bytes) moved from %p to %p", ps[i], addr, addr1);

		ATF_REQUIRE(munmap(addr, ps[i] == 0));

		/* Clobber an anonymous mapping with a superpage. */
		addr1 = mmap(NULL, PAGE_SIZE, PROT_READ \| PROT_WRITE,
		MAP_ANON \| MAP_PRIVATE \| MAP_ALIGNED(30 /* XXX */), -1, 0);
		ATF_REQUIRE_MSG(addr1 != MAP_FAILED,
		"mmap failed; error=%d", errno);
		addr = mmap(addr1, ps[i], PROT_READ \| PROT_WRITE,
		MAP_SHARED \| MAP_FIXED, fd, 0);
		ATF_REQUIRE_MSG(addr != MAP_FAILED,
		"mmap failed; error=%d", errno);
		ATF_REQUIRE_MSG(addr == addr1,
		"mmap disobeyed MAP_FIXED, %p %p", addr, addr1);
		(volatile char )addr = 0; /* fault */
		ATF_REQUIRE(mincore(addr, ps[i], vec) == 0);
		for (size_t p = 0; p < ps[i] / PAGE_SIZE; p++) {
		/* XXX make it a subr */
		ATF_REQUIRE_MSG((vec[p] & MINCORE_INCORE) != 0,
		"page %zu is not resident", p);
		ATF_REQUIRE_MSG((vec[p] & MINCORE_PSIND(i)) != 0,
		"page %zu is not resident", p);
		}

		/*
		* Copy-on-write mappings are not permitted.
		*/
		addr = mmap(NULL, ps[i], PROT_READ \| PROT_WRITE, MAP_PRIVATE,
		fd, 0);
		ATF_REQUIRE_MSG(addr == MAP_FAILED,
		"mmap(%zu bytes) succeeded", ps[i]);

		ATF_REQUIRE(close(fd) == 0);
		}
		}

		ATF_TC_WITHOUT_HEAD(largepage_munmap);
		ATF_TC_BODY(largepage_munmap, tc)
		{
		char *addr;
		size_t ps[MAXPAGESIZES], ps1;
		int fd, pscnt;

		if (MAXPAGESIZES == 1)
		atf_tc_pass();

		pscnt = pagesizes(ps);
		for (int i = 1; i < pscnt; i++) {
		fd = shm_open_large(i, SHM_LARGEPAGE_ALLOC_DEFAULT, ps[i]);
		ps1 = ps[i - 1];

		addr = mmap(NULL, ps[i], PROT_READ \| PROT_WRITE, MAP_SHARED, fd,
		0);
		ATF_REQUIRE_MSG(addr != MAP_FAILED,
		"mmap(%zu bytes) failed; errno=%d", ps[i], errno);

		/* Try several unaligned munmap() requests. */
		ATF_REQUIRE(munmap(addr, ps1) != 0);
		ATF_REQUIRE_MSG(errno == EINVAL,
		"unexpected error %d from munmap", errno);
		ATF_REQUIRE(munmap(addr, ps[i] - ps1));
		ATF_REQUIRE_MSG(errno == EINVAL,
		"unexpected error %d from munmap", errno);
		ATF_REQUIRE(munmap(addr + ps1, ps1) != 0);
		ATF_REQUIRE_MSG(errno == EINVAL,
		"unexpected error %d from munmap", errno);
		ATF_REQUIRE(munmap(addr, 0));
		ATF_REQUIRE_MSG(errno == EINVAL,
		"unexpected error %d from munmap", errno);

		ATF_REQUIRE(munmap(addr, ps[i]) == 0);
		ATF_REQUIRE(close(fd) == 0);
		}
		}

		static void
		largepage_madvise(char *addr, size_t sz, int advice, int error)
		{
		if (error == 0) {
		ATF_REQUIRE_MSG(madvise(addr, sz, advice) == 0,
		"madvise(%zu, %d) failed; error=%d", sz, advice, errno);
		} else {
		ATF_REQUIRE_MSG(madvise(addr, sz, advice) != 0,
		"madvise(%zu, %d) succeeded", sz, advice);
		ATF_REQUIRE_MSG(errno == error,
		"unexpected error %d from madvise(%zu, %d)",
		errno, sz, advice);
		}
		}

		ATF_TC_WITHOUT_HEAD(largepage_madvise);
		ATF_TC_BODY(largepage_madvise, tc)
		{
		char *addr;
		size_t ps[MAXPAGESIZES];
		int fd, pscnt;

		if (MAXPAGESIZES == 1)
		atf_tc_pass();

		pscnt = pagesizes(ps);
		for (int i = 1; i < pscnt; i++) {
		fd = shm_open_large(i, SHM_LARGEPAGE_ALLOC_DEFAULT, ps[i]);
		addr = mmap(NULL, ps[i], PROT_READ \| PROT_WRITE, MAP_SHARED, fd,
		0);
		ATF_REQUIRE_MSG(addr != MAP_FAILED,
		"mmap(%zu bytes) failed; error=%d", ps[i], errno);

		/* Advice that requires clipping. */
		largepage_madvise(addr, PAGE_SIZE, MADV_NORMAL, EINVAL);
		largepage_madvise(addr, ps[i], MADV_NORMAL, 0);
		largepage_madvise(addr, PAGE_SIZE, MADV_RANDOM, EINVAL);
		largepage_madvise(addr, ps[i], MADV_RANDOM, 0);
		largepage_madvise(addr, PAGE_SIZE, MADV_SEQUENTIAL, EINVAL);
		largepage_madvise(addr, ps[i], MADV_SEQUENTIAL, 0);
		largepage_madvise(addr, PAGE_SIZE, MADV_NOSYNC, EINVAL);
		largepage_madvise(addr, ps[i], MADV_NOSYNC, 0);
		largepage_madvise(addr, PAGE_SIZE, MADV_AUTOSYNC, EINVAL);
		largepage_madvise(addr, ps[i], MADV_AUTOSYNC, 0);
		largepage_madvise(addr, PAGE_SIZE, MADV_CORE, EINVAL);
		largepage_madvise(addr, ps[i], MADV_CORE, 0);
		largepage_madvise(addr, PAGE_SIZE, MADV_NOCORE, EINVAL);
		largepage_madvise(addr, ps[i], MADV_NOCORE, 0);

		/* Advice that does not result in clipping. */
		largepage_madvise(addr, PAGE_SIZE, MADV_DONTNEED, 0);
		largepage_madvise(addr, ps[i], MADV_DONTNEED, 0);
		largepage_madvise(addr, PAGE_SIZE, MADV_WILLNEED, 0);
		largepage_madvise(addr, ps[i], MADV_WILLNEED, 0);
		largepage_madvise(addr, PAGE_SIZE, MADV_FREE, 0);
		largepage_madvise(addr, ps[i], MADV_FREE, 0);

		ATF_REQUIRE(munmap(addr, ps[i]) == 0);
		ATF_REQUIRE(close(fd) == 0);
		}
		}

		ATF_TC(largepage_mlock);
		ATF_TC_HEAD(largepage_mlock, tc)
		{
		/* Needed to set rlimit. */
		atf_tc_set_md_var(tc, "require.user", "root");
		}
		ATF_TC_BODY(largepage_mlock, tc)
		{
		struct rlimit rl;
		char *addr;
		size_t ps[MAXPAGESIZES];
		int fd, pscnt;

		if (MAXPAGESIZES == 1)
		atf_tc_pass();

		/* XXX max_user_wired also needs to be bumped */
		rl.rlim_cur = rl.rlim_max = RLIM_INFINITY;
		ATF_REQUIRE_MSG(setrlimit(RLIMIT_MEMLOCK, &rl) == 0,
		"setrlimit failed; error=%d", errno);

		pscnt = pagesizes(ps);
		for (int i = 1; i < pscnt; i++) {
		fd = shm_open_large(i, SHM_LARGEPAGE_ALLOC_DEFAULT, ps[i]);
		addr = mmap(NULL, ps[i], PROT_READ \| PROT_WRITE, MAP_SHARED, fd,
		0);
		ATF_REQUIRE_MSG(addr != MAP_FAILED,
		"mmap(%zu bytes) failed; error=%d", ps[i], errno);

		ATF_REQUIRE(mlock(addr, PAGE_SIZE) != 0);
		ATF_REQUIRE_MSG(errno == EINVAL,
		"unexpected error %d from mlock(%zu bytes)", errno, ps[i]);
		ATF_REQUIRE(mlock(addr, ps[i] - PAGE_SIZE) != 0);
		ATF_REQUIRE_MSG(errno == EINVAL,
		"unexpected error %d from mlock(%zu bytes)", errno, ps[i]);

		ATF_REQUIRE_MSG(mlock(addr, ps[i]) == 0,
		"mlock failed; error=%d", errno);

		ATF_REQUIRE(munmap(addr, ps[i]) == 0);

		ATF_REQUIRE(mlockall(MCL_FUTURE) == 0);
		addr = mmap(NULL, ps[i], PROT_READ \| PROT_WRITE, MAP_SHARED, fd,
		0);
		ATF_REQUIRE_MSG(addr != MAP_FAILED,
		"mmap(%zu bytes) failed; error=%d", ps[i], errno);

		ATF_REQUIRE(munmap(addr, ps[i]) == 0);
		ATF_REQUIRE(close(fd) == 0);
		}
		}

		ATF_TC_WITHOUT_HEAD(largepage_msync);
		ATF_TC_BODY(largepage_msync, tc)
		{
		char *addr;
		size_t ps[MAXPAGESIZES];
		int fd, pscnt;

		if (MAXPAGESIZES == 1)
		atf_tc_pass();

		pscnt = pagesizes(ps);
		for (int i = 1; i < pscnt; i++) {
		fd = shm_open_large(i, SHM_LARGEPAGE_ALLOC_DEFAULT, ps[i]);
		addr = mmap(NULL, ps[i], PROT_READ \| PROT_WRITE, MAP_SHARED, fd,
		0);
		ATF_REQUIRE_MSG(addr != MAP_FAILED,
		"mmap(%zu bytes) failed; error=%d", ps[i], errno);

		memset(addr, 0, ps[i]);

		/*
		* "Sync" requests are no-ops for SHM objects, so small
		* PAGE_SIZE-sized requests succeed.
		*/
		ATF_REQUIRE_MSG(msync(addr, PAGE_SIZE, MS_ASYNC) == 0,
		"msync(MS_ASYNC) failed; error=%d", errno);
		ATF_REQUIRE_MSG(msync(addr, ps[i], MS_ASYNC) == 0,
		"msync(MS_ASYNC) failed; error=%d", errno);
		ATF_REQUIRE_MSG(msync(addr, PAGE_SIZE, MS_SYNC) == 0,
		"msync(MS_SYNC) failed; error=%d", errno);
		ATF_REQUIRE_MSG(msync(addr, ps[i], MS_SYNC) == 0,
		"msync(MS_SYNC) failed; error=%d", errno);

		ATF_REQUIRE_MSG(msync(addr, PAGE_SIZE, MS_INVALIDATE) != 0,
		"msync(MS_INVALIDATE) succeeded");
		/* XXX wrong errno */
		ATF_REQUIRE_MSG(errno == EBUSY,
		"unexpected error %d from msync(MS_INVALIDATE)", errno);
		ATF_REQUIRE_MSG(msync(addr, ps[i], MS_INVALIDATE) == 0,
		"msync(MS_INVALIDATE) failed; error=%d", errno);
		memset(addr, 0, ps[i]);

		ATF_REQUIRE(munmap(addr, ps[i]) == 0);
		ATF_REQUIRE(close(fd) == 0);
		}
		}

		static void
		largepage_protect(char *addr, size_t sz, int prot, int error)
		{
		if (error == 0) {
		ATF_REQUIRE_MSG(mprotect(addr, sz, prot) == 0,
		"mprotect(%zu, %x) failed; error=%d", sz, prot, errno);
		} else {
		ATF_REQUIRE_MSG(mprotect(addr, sz, prot) != 0,
		"mprotect(%zu, %x) succeeded", sz, prot);
		ATF_REQUIRE_MSG(errno == error,
		"unexpected error %d from mprotect(%zu, %x)",
		errno, sz, prot);
		}
		}

		ATF_TC_WITHOUT_HEAD(largepage_mprotect);
		ATF_TC_BODY(largepage_mprotect, tc)
		{
		char addr, addr1;
		size_t ps[MAXPAGESIZES];
		int fd, pscnt;

		if (MAXPAGESIZES == 1)
		atf_tc_pass();

		pscnt = pagesizes(ps);
		for (int i = 1; i < pscnt; i++) {
		fd = shm_open_large(i, SHM_LARGEPAGE_ALLOC_DEFAULT, ps[i]);
		addr = mmap(NULL, ps[i], PROT_READ \| PROT_WRITE, MAP_SHARED, fd,
		0);
		ATF_REQUIRE_MSG(addr != MAP_FAILED,
		"mmap(%zu bytes) failed; error=%d", ps[i], errno);

		/*
		* These should be no-ops from the pmap perspective since the
		* page is not yet entered into the pmap.
		*/
		largepage_protect(addr, PAGE_SIZE, PROT_READ, EINVAL);
		largepage_protect(addr, ps[i], PROT_READ, 0);
		largepage_protect(addr, PAGE_SIZE, PROT_NONE, EINVAL);
		largepage_protect(addr, ps[i], PROT_NONE, 0);
		largepage_protect(addr, PAGE_SIZE,
		PROT_READ \| PROT_WRITE \| PROT_EXEC, EINVAL);
		largepage_protect(addr, ps[i],
		PROT_READ \| PROT_WRITE \| PROT_EXEC, 0);

		/* Trigger creation of a mapping and try again. */
		(volatile char )addr = 0;
		largepage_protect(addr, PAGE_SIZE, PROT_READ, EINVAL);
		largepage_protect(addr, ps[i], PROT_READ, 0);
		largepage_protect(addr, PAGE_SIZE, PROT_NONE, EINVAL);
		largepage_protect(addr, ps[i], PROT_NONE, 0);
		largepage_protect(addr, PAGE_SIZE,
		PROT_READ \| PROT_WRITE \| PROT_EXEC, EINVAL);
		largepage_protect(addr, ps[i],
		PROT_READ \| PROT_WRITE \| PROT_EXEC, 0);

		memset(addr, 0, ps[i]);

		/* Map two contiguous large pages and merge map entries. */
		addr1 = mmap(addr + ps[i], ps[i], PROT_READ \| PROT_WRITE,
		MAP_SHARED \| MAP_FIXED \| MAP_EXCL, fd, 0);
		/* XXX can fail if no space exists, use MAP_GUARD */
		ATF_REQUIRE_MSG(addr1 != MAP_FAILED,
		"mmap(%zu bytes) failed; error=%d", ps[i], errno);

		largepage_protect(addr1 - PAGE_SIZE, PAGE_SIZE * 2,
		PROT_READ \| PROT_WRITE, EINVAL);
		largepage_protect(addr, ps[i] * 2, PROT_READ \| PROT_WRITE, 0);

		memset(addr, 0, ps[i] * 2);

		ATF_REQUIRE(munmap(addr, ps[i]) == 0);
		ATF_REQUIRE(munmap(addr1, ps[i]) == 0);
		ATF_REQUIRE(close(fd) == 0);
		}
		}

		ATF_TC_WITHOUT_HEAD(largepage_minherit);
		ATF_TC_BODY(largepage_minherit, tc)
		{
		char *addr;
		size_t ps[MAXPAGESIZES];
		pid_t child;
		int fd, pscnt, status;

		if (MAXPAGESIZES == 1)
		atf_tc_pass();

		pscnt = pagesizes(ps);
		for (int i = 1; i < pscnt; i++) {
		fd = shm_open_large(i, SHM_LARGEPAGE_ALLOC_DEFAULT, ps[i]);
		addr = mmap(NULL, ps[i], PROT_READ \| PROT_WRITE, MAP_SHARED, fd,
		0);
		ATF_REQUIRE_MSG(addr != MAP_FAILED,
		"mmap(%zu bytes) failed; error=%d", ps[i], errno);

		ATF_REQUIRE(minherit(addr, PAGE_SIZE, INHERIT_SHARE) != 0);

		ATF_REQUIRE_MSG(minherit(addr, ps[i], INHERIT_SHARE) == 0,
		"minherit(%zu bytes) failed; error=%d", ps[i], errno);
		child = fork();
		ATF_REQUIRE_MSG(child != -1, "fork failed; error=%d", errno);
		if (child == 0) {
		char v;

		(volatile char )addr = 0;
		if (mincore(addr, PAGE_SIZE, &v) != 0)
		_exit(1);
		if ((v & MINCORE_PSIND(i)) == 0)
		_exit(2);
		_exit(0);
		}
		ATF_REQUIRE_MSG(waitpid(child, &status, 0) == child,
		"waitpid failed; error=%d", errno);
		ATF_REQUIRE_MSG(WIFEXITED(status),
		"child was killed by signal %d", WTERMSIG(status));
		ATF_REQUIRE_MSG(WEXITSTATUS(status) == 0,
		"child exited with status %d", WEXITSTATUS(status));

		ATF_REQUIRE_MSG(minherit(addr, ps[i], INHERIT_NONE) == 0,
		"minherit(%zu bytes) failed; error=%d", ps[i], errno);
		child = fork();
		ATF_REQUIRE_MSG(child != -1, "fork failed; error=%d", errno);
		if (child == 0) {
		char v;

		if (mincore(addr, PAGE_SIZE, &v) == 0)
		_exit(1);
		_exit(0);
		}
		ATF_REQUIRE_MSG(waitpid(child, &status, 0) == child,
		"waitpid failed; error=%d", errno);
		ATF_REQUIRE_MSG(WIFEXITED(status),
		"child was killed by signal %d", WTERMSIG(status));
		ATF_REQUIRE_MSG(WEXITSTATUS(status) == 0,
		"child exited with status %d", WEXITSTATUS(status));

		/* Copy-on-write is not supported for static large pages. */
		ATF_REQUIRE_MSG(minherit(addr, ps[i], INHERIT_COPY) != 0,
		"minherit(%zu bytes) succeeded", ps[i]);

		ATF_REQUIRE_MSG(minherit(addr, ps[i], INHERIT_ZERO) == 0,
		"minherit(%zu bytes) failed; error=%d", ps[i], errno);
		child = fork();
		ATF_REQUIRE_MSG(child != -1, "fork failed; error=%d", errno);
		if (child == 0) {
		char v;

		(volatile char )addr = 0;
		if (mincore(addr, PAGE_SIZE, &v) != 0)
		_exit(1);
		if ((v & MINCORE_SUPER) != 0)
		_exit(2);
		_exit(0);
		}
		ATF_REQUIRE_MSG(waitpid(child, &status, 0) == child,
		"waitpid failed; error=%d", errno);
		ATF_REQUIRE_MSG(WIFEXITED(status),
		"child was killed by signal %d", WTERMSIG(status));
		ATF_REQUIRE_MSG(WEXITSTATUS(status) == 0,
		"child exited with status %d", WEXITSTATUS(status));

		ATF_REQUIRE(munmap(addr, ps[i]) == 0);
		ATF_REQUIRE(close(fd) == 0);
		}
		}

		ATF_TC_WITHOUT_HEAD(largepage_reopen);
		ATF_TC_BODY(largepage_reopen, tc)
		{
		char addr, vec;
		size_t ps[MAXPAGESIZES];
		int fd, psind;

		if (MAXPAGESIZES == 1)
		atf_tc_pass();

		(void)pagesizes(ps);
		psind = 1;

		gen_test_path();
		fd = shm_create_largepage(test_path, O_CREAT \| O_RDWR, psind,
		SHM_LARGEPAGE_ALLOC_DEFAULT, 0600);
		if (fd < 0 && errno == EINVAL) /* XXX is it the right errno? */
		atf_tc_skip("no large page support");
		ATF_REQUIRE_MSG(fd >= 0, "shm_create_largepage failed; error=%d", errno);

		ATF_REQUIRE_MSG(ftruncate(fd, ps[psind]) == 0,
		"ftruncate failed; error=%d", errno);

		ATF_REQUIRE_MSG(close(fd) == 0, "close failed; error=%d", errno);

		fd = shm_open(test_path, O_RDWR, 0);
		ATF_REQUIRE_MSG(fd >= 0, "shm_open failed; error=%d", errno);

		addr = mmap(NULL, ps[psind], PROT_READ \| PROT_WRITE, MAP_SHARED, fd, 0);
		ATF_REQUIRE_MSG(addr != MAP_FAILED, "mmap failed; error=%d", errno);

		/* Trigger a fault and mapping creation. */
		(volatile char )addr = 0;

		vec = malloc(ps[psind] / PAGE_SIZE);
		ATF_REQUIRE(vec != NULL);
		ATF_REQUIRE_MSG(mincore(addr, ps[psind], vec) == 0,
		"mincore failed; error=%d", errno);
		ATF_REQUIRE_MSG((vec[0] & MINCORE_PSIND(psind)) != 0,
		"page not mapped into a %zu-byte superpage", ps[psind]);

		ATF_REQUIRE_MSG(shm_unlink(test_path) == 0,
		"shm_unlink failed; errno=%d", errno);
		ATF_REQUIRE_MSG(close(fd) == 0,
		"close failed; errno=%d", errno);
		}

ATF_TP_ADD_TCS(tp)		ATF_TP_ADD_TCS(tp)
{		{

ATF_TP_ADD_TC(tp, remap_object);		ATF_TP_ADD_TC(tp, remap_object);
ATF_TP_ADD_TC(tp, rename_from_anon);		ATF_TP_ADD_TC(tp, rename_from_anon);
ATF_TP_ADD_TC(tp, rename_bad_path_pointer);		ATF_TP_ADD_TC(tp, rename_bad_path_pointer);
ATF_TP_ADD_TC(tp, rename_from_nonexisting);		ATF_TP_ADD_TC(tp, rename_from_nonexisting);
ATF_TP_ADD_TC(tp, rename_to_anon);		ATF_TP_ADD_TC(tp, rename_to_anon);
Show All 18 Lines	ATF_TP_ADD_TCS(tp)
ATF_TP_ADD_TC(tp, shm_functionality_across_fork);		ATF_TP_ADD_TC(tp, shm_functionality_across_fork);
ATF_TP_ADD_TC(tp, trunc_resets_object);		ATF_TP_ADD_TC(tp, trunc_resets_object);
ATF_TP_ADD_TC(tp, unlink_bad_path_pointer);		ATF_TP_ADD_TC(tp, unlink_bad_path_pointer);
ATF_TP_ADD_TC(tp, unlink_path_too_long);		ATF_TP_ADD_TC(tp, unlink_path_too_long);
ATF_TP_ADD_TC(tp, object_resize);		ATF_TP_ADD_TC(tp, object_resize);
ATF_TP_ADD_TC(tp, cloexec);		ATF_TP_ADD_TC(tp, cloexec);
ATF_TP_ADD_TC(tp, mode);		ATF_TP_ADD_TC(tp, mode);
ATF_TP_ADD_TC(tp, fallocate);		ATF_TP_ADD_TC(tp, fallocate);
		ATF_TP_ADD_TC(tp, largepage_basic);
		ATF_TP_ADD_TC(tp, largepage_config);
		ATF_TP_ADD_TC(tp, largepage_mmap);
		ATF_TP_ADD_TC(tp, largepage_munmap);
		ATF_TP_ADD_TC(tp, largepage_madvise);
		ATF_TP_ADD_TC(tp, largepage_mlock);
		ATF_TP_ADD_TC(tp, largepage_msync);
		ATF_TP_ADD_TC(tp, largepage_mprotect);
		ATF_TP_ADD_TC(tp, largepage_minherit);
		ATF_TP_ADD_TC(tp, largepage_reopen);

return (atf_no_error());		return (atf_no_error());
}		}