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e7f55f668d
Add posix bug unit to SWUTS. Jira NVGPU-4478 Change-Id: I37fb087952414d1083b268ad2bbf38def40ef189 Signed-off-by: ajesh <akv@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2280348 Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
147 lines
3.8 KiB
C
147 lines
3.8 KiB
C
/*
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* Copyright (c) 2019-2020, NVIDIA CORPORATION. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include <stdlib.h>
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#include <stdint.h>
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#include <setjmp.h>
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#include <unit/io.h>
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#include <unit/unit.h>
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#include <nvgpu/bug.h>
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#include <nvgpu/types.h>
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#include "posix-bug.h"
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/*
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* Simple wrapper function to call BUG() or not. It was not strictly necessary
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* to wrap the call to BUG() in a function but it better ressembles the way
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* EXPECT_BUG is to be used in unit tests.
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*/
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static void bug_caller(struct unit_module *m, bool call)
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{
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if (call == true) {
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unit_info(m, "Calling BUG()\n");
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BUG();
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} else {
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unit_info(m, "Not calling BUG()\n");
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}
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}
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/*
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* Test to ensure the EXPECT_BUG construct works as intended by making sure it
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* behaves properly when BUG is called or not.
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* In the event that EXPECT_BUG is completely broken, the call to BUG() would
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* cause the unit to crash and report a failure correctly.
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*/
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int test_expect_bug(struct unit_module *m,
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struct gk20a *g, void *args)
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{
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/* Make sure calls to BUG() are caught as intended. */
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if (!EXPECT_BUG(bug_caller(m, true))) {
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unit_err(m, "BUG() was not called but it was expected.\n");
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return UNIT_FAIL;
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} else {
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unit_info(m, "BUG() was called as expected\n");
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}
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/* Make sure there are no false positives when BUG is not called. */
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if (!EXPECT_BUG(bug_caller(m, false))) {
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unit_info(m, "BUG() was not called as expected.\n");
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} else {
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unit_err(m, "BUG() was called but it was not expected.\n");
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return UNIT_FAIL;
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}
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return UNIT_SUCCESS;
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}
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static bool cb_called = false;
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static void bug_cb(void *arg)
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{
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jmp_buf *jmp_handler = arg;
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cb_called = true;
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longjmp(*jmp_handler, 1);
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}
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static bool other_cb_called = false;
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static void other_bug_cb(void *arg)
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{
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other_cb_called = true;
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}
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int test_bug_cb(struct unit_module *m,
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struct gk20a *g, void *args)
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{
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struct nvgpu_bug_cb callback;
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struct nvgpu_bug_cb other_callback;
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jmp_buf handler;
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/* two callbacks */
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callback.cb = bug_cb;
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callback.arg = &handler;
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other_callback.cb = other_bug_cb;
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other_callback.arg = NULL;
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nvgpu_bug_register_cb(&other_callback);
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nvgpu_bug_register_cb(&callback);
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if (setjmp(handler) == 0) {
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BUG();
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}
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if (!other_cb_called || !cb_called) {
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unit_err(m, "BUG() callback was not called.\n");
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return UNIT_FAIL;
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}
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/* one callback */
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other_cb_called = false;
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nvgpu_bug_register_cb(&other_callback);
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nvgpu_bug_register_cb(&callback);
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nvgpu_bug_unregister_cb(&other_callback);
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if (setjmp(handler) == 0) {
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BUG();
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}
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if (other_cb_called) {
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unit_err(m, "callback unregistration failed.\n");
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return UNIT_FAIL;
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}
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return UNIT_SUCCESS;
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}
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struct unit_module_test posix_bug_tests[] = {
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UNIT_TEST(expect_bug, test_expect_bug, NULL, 0),
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UNIT_TEST(bug_cb, test_bug_cb, NULL, 0),
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};
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UNIT_MODULE(posix_bug, posix_bug_tests, UNIT_PRIO_POSIX_TEST);
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