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ee282de11b
For unit testing, this new feature allows to "catch" calls to BUG() when they are expected. JIRA NVGPU-1287 Change-Id: I29fc9cd7fc28f8697a865c173b6991e2a48a3b4d Signed-off-by: Nicolas Benech <nbenech@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1930974 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
84 lines
2.1 KiB
C
84 lines
2.1 KiB
C
/*
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* Copyright (c) 2018, 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 <nvgpu/log.h>
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#include <nvgpu/posix/bug.h>
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#include <signal.h>
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#include <pthread.h>
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#include <stdbool.h>
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#include <setjmp.h>
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static _Thread_local bool expect_bug;
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static _Thread_local jmp_buf *jmp_handler;
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void bug_handler_register(jmp_buf *handler)
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{
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expect_bug = true;
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jmp_handler = handler;
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}
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void bug_handler_cancel(void)
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{
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expect_bug = false;
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jmp_handler = NULL;
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}
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static void __dump_stack(unsigned int skip_frames)
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{
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return;
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}
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void dump_stack(void)
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{
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__dump_stack(0);
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}
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/*
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* Ahhh! A bug!
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*/
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void __bug(const char *fmt, ...)
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{
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if (expect_bug) {
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nvgpu_info(NULL, "Expected BUG detected!");
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expect_bug = false;
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/* Perform a long jump to where "setjmp()" was called. */
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longjmp(*jmp_handler, 1);
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}
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/* If BUG is unexpected, raise a SIGSEGV signal and kill the thread */
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nvgpu_err(NULL, "BUG detected!");
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(void) raise(SIGSEGV);
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pthread_exit(NULL);
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}
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bool __warn(bool cond, const char *fmt, ...)
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{
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if (!cond)
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goto done;
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nvgpu_warn(NULL, "WARNING detected!");
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dump_stack();
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done:
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return cond;
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}
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