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selftest: sync: basic tests for sw_sync framework 

These tests are based on the libsync test suite from Android.
This commit lays the ground for future tests, as well as includes
tests for a variety of basic allocation commands.

Signed-off-by: Emilio López <emilio.lopez@collabora.co.uk>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
This commit is contained in:
Emilio López 2016-10-19 09:49:48 -03:00 committed by Shuah Khan
parent 1001354ca3
commit 82208160ae
9 changed files with 519 additions and 0 deletions
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1
tools/testing/selftests/Makefile
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@ -23,6 +23,7 @@ TARGETS += seccomp
TARGETS += sigaltstack
TARGETS += size
TARGETS += static_keys
TARGETS += sync
TARGETS += sysctl
ifneq (1, $(quicktest))
TARGETS += timers

1
tools/testing/selftests/sync/.gitignore vendored Normal file
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@ -0,0 +1 @@
sync_test

18
tools/testing/selftests/sync/Makefile Normal file
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@ -0,0 +1,18 @@
CFLAGS += -O2 -g -std=gnu89 -pthread -Wall -Wextra
CFLAGS += -I../../../../usr/include/
LDFLAGS += -pthread
TEST_PROGS = sync_test
all: $(TEST_PROGS)
include ../lib.mk
OBJS = sync_test.o sync.o
TESTS += sync_alloc.o
sync_test: $(OBJS) $(TESTS)
clean:
$(RM) sync_test $(OBJS) $(TESTS)

46
tools/testing/selftests/sync/sw_sync.h Normal file
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@ -0,0 +1,46 @@
/*
* sw_sync abstraction
*
* Copyright 2015-2016 Collabora Ltd.
*
* Based on the implementation from the Android Open Source Project,
*
* Copyright 2013 Google, Inc
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef SELFTESTS_SW_SYNC_H
#define SELFTESTS_SW_SYNC_H
/*
* sw_sync is mainly intended for testing and should not be compiled into
* production kernels
*/
int sw_sync_timeline_create(void);
int sw_sync_timeline_is_valid(int fd);
int sw_sync_timeline_inc(int fd, unsigned int count);
void sw_sync_timeline_destroy(int fd);
int sw_sync_fence_create(int fd, const char *name, unsigned int value);
int sw_sync_fence_is_valid(int fd);
void sw_sync_fence_destroy(int fd);
#endif

221
tools/testing/selftests/sync/sync.c Normal file
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@ -0,0 +1,221 @@
/*
* sync / sw_sync abstraction
* Copyright 2015-2016 Collabora Ltd.
*
* Based on the implementation from the Android Open Source Project,
*
* Copyright 2012 Google, Inc
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#include <fcntl.h>
#include <malloc.h>
#include <poll.h>
#include <stdint.h>
#include <string.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include "sync.h"
#include "sw_sync.h"
#include <linux/sync_file.h>
/* SW_SYNC ioctls */
struct sw_sync_create_fence_data {
__u32 value;
char name[32];
__s32 fence;
};
#define SW_SYNC_IOC_MAGIC 'W'
#define SW_SYNC_IOC_CREATE_FENCE _IOWR(SW_SYNC_IOC_MAGIC, 0,\
struct sw_sync_create_fence_data)
#define SW_SYNC_IOC_INC _IOW(SW_SYNC_IOC_MAGIC, 1, __u32)
int sync_wait(int fd, int timeout)
{
struct pollfd fds;
fds.fd = fd;
fds.events = POLLIN | POLLERR;
return poll(&fds, 1, timeout);
}
int sync_merge(const char *name, int fd1, int fd2)
{
struct sync_merge_data data = {};
int err;
data.fd2 = fd2;
strncpy(data.name, name, sizeof(data.name) - 1);
data.name[sizeof(data.name) - 1] = '\0';
err = ioctl(fd1, SYNC_IOC_MERGE, &data);
if (err < 0)
return err;
return data.fence;
}
static struct sync_file_info *sync_file_info(int fd)
{
struct sync_file_info *info;
struct sync_fence_info *fence_info;
int err, num_fences;
info = calloc(1, sizeof(*info));
if (info == NULL)
return NULL;
err = ioctl(fd, SYNC_IOC_FILE_INFO, info);
if (err < 0) {
free(info);
return NULL;
}
num_fences = info->num_fences;
if (num_fences) {
info->flags = 0;
info->num_fences = num_fences;
fence_info = calloc(num_fences, sizeof(*fence_info));
if (!fence_info) {
free(info);
return NULL;
}
info->sync_fence_info = (uint64_t)fence_info;
err = ioctl(fd, SYNC_IOC_FILE_INFO, info);
if (err < 0) {
free(fence_info);
free(info);
return NULL;
}
}
return info;
}
static void sync_file_info_free(struct sync_file_info *info)
{
free((void *)info->sync_fence_info);
free(info);
}
int sync_fence_size(int fd)
{
int count;
struct sync_file_info *info = sync_file_info(fd);
if (!info)
return 0;
count = info->num_fences;
sync_file_info_free(info);
return count;
}
int sync_fence_count_with_status(int fd, int status)
{
unsigned int i, count = 0;
struct sync_fence_info *fence_info = NULL;
struct sync_file_info *info = sync_file_info(fd);
if (!info)
return -1;
fence_info = (struct sync_fence_info *)info->sync_fence_info;
for (i = 0 ; i < info->num_fences ; i++) {
if (fence_info[i].status == status)
count++;
}
sync_file_info_free(info);
return count;
}
int sw_sync_timeline_create(void)
{
return open("/sys/kernel/debug/sync/sw_sync", O_RDWR);
}
int sw_sync_timeline_inc(int fd, unsigned int count)
{
__u32 arg = count;
return ioctl(fd, SW_SYNC_IOC_INC, &arg);
}
int sw_sync_timeline_is_valid(int fd)
{
int status;
if (fd == -1)
return 0;
status = fcntl(fd, F_GETFD, 0);
return (status >= 0);
}
void sw_sync_timeline_destroy(int fd)
{
if (sw_sync_timeline_is_valid(fd))
close(fd);
}
int sw_sync_fence_create(int fd, const char *name, unsigned int value)
{
struct sw_sync_create_fence_data data = {};
int err;
data.value = value;
strncpy(data.name, name, sizeof(data.name) - 1);
data.name[sizeof(data.name) - 1] = '\0';
err = ioctl(fd, SW_SYNC_IOC_CREATE_FENCE, &data);
if (err < 0)
return err;
return data.fence;
}
int sw_sync_fence_is_valid(int fd)
{
/* Same code! */
return sw_sync_timeline_is_valid(fd);
}
void sw_sync_fence_destroy(int fd)
{
if (sw_sync_fence_is_valid(fd))
close(fd);
}

40
tools/testing/selftests/sync/sync.h Normal file
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@ -0,0 +1,40 @@
/*
* sync abstraction
* Copyright 2015-2016 Collabora Ltd.
*
* Based on the implementation from the Android Open Source Project,
*
* Copyright 2012 Google, Inc
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef SELFTESTS_SYNC_H
#define SELFTESTS_SYNC_H
#define FENCE_STATUS_ERROR (-1)
#define FENCE_STATUS_ACTIVE (0)
#define FENCE_STATUS_SIGNALED (1)
int sync_wait(int fd, int timeout);
int sync_merge(const char *name, int fd1, int fd2);
int sync_fence_size(int fd);
int sync_fence_count_with_status(int fd, int status);
#endif

74
tools/testing/selftests/sync/sync_alloc.c Normal file
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/*
* sync allocation tests
* Copyright 2015-2016 Collabora Ltd.
*
* Based on the implementation from the Android Open Source Project,
*
* Copyright 2012 Google, Inc
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#include "sync.h"
#include "sw_sync.h"
#include "synctest.h"
int test_alloc_timeline(void)
{
int timeline, valid;
timeline = sw_sync_timeline_create();
valid = sw_sync_timeline_is_valid(timeline);
ASSERT(valid, "Failure allocating timeline\n");
sw_sync_timeline_destroy(timeline);
return 0;
}
int test_alloc_fence(void)
{
int timeline, fence, valid;
timeline = sw_sync_timeline_create();
valid = sw_sync_timeline_is_valid(timeline);
ASSERT(valid, "Failure allocating timeline\n");
fence = sw_sync_fence_create(timeline, "allocFence", 1);
valid = sw_sync_fence_is_valid(fence);
ASSERT(valid, "Failure allocating fence\n");
sw_sync_fence_destroy(fence);
sw_sync_timeline_destroy(timeline);
return 0;
}
int test_alloc_fence_negative(void)
{
int fence, timeline;
timeline = sw_sync_timeline_create();
ASSERT(timeline > 0, "Failure allocating timeline\n");
fence = sw_sync_fence_create(-1, "fence", 1);
ASSERT(fence < 0, "Success allocating negative fence\n");
sw_sync_fence_destroy(fence);
sw_sync_timeline_destroy(timeline);
return 0;
}

71
tools/testing/selftests/sync/sync_test.c Normal file
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@ -0,0 +1,71 @@
/*
* sync test runner
* Copyright 2015-2016 Collabora Ltd.
*
* Based on the implementation from the Android Open Source Project,
*
* Copyright 2012 Google, Inc
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/wait.h>
#include "synctest.h"
static int run_test(int (*test)(void), char *name)
{
int result;
pid_t childpid;
fflush(stdout);
childpid = fork();
if (childpid) {
waitpid(childpid, &result, 0);
if (WIFEXITED(result))
return WEXITSTATUS(result);
return 1;
}
printf("[RUN]\tExecuting %s\n", name);
exit(test());
}
int main(void)
{
int err = 0;
printf("[RUN]\tTesting sync framework\n");
err += RUN_TEST(test_alloc_timeline);
err += RUN_TEST(test_alloc_fence);
err += RUN_TEST(test_alloc_fence_negative);
if (err)
printf("[FAIL]\tsync errors: %d\n", err);
else
printf("[OK]\tsync\n");
return !!err;
}

47
tools/testing/selftests/sync/synctest.h Normal file
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@ -0,0 +1,47 @@
/*
* sync tests
* Copyright 2015-2016 Collabora Ltd.
*
* Based on the implementation from the Android Open Source Project,
*
* Copyright 2012 Google, Inc
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef SELFTESTS_SYNCTEST_H
#define SELFTESTS_SYNCTEST_H
#include <stdio.h>
#define ASSERT(cond, msg) do { \
if (!(cond)) { \
printf("[BAD]\t%s", (msg)); \
return 1; \
} \
} while (0)
#define RUN_TEST(x) run_test((x), #x)
/* Allocation tests */
int test_alloc_timeline(void);
int test_alloc_fence(void);
int test_alloc_fence_negative(void);
#endif