diff options
Diffstat (limited to 'drivers/gpu/nvgpu/os/posix/bug.c')
-rw-r--r-- | drivers/gpu/nvgpu/os/posix/bug.c | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/drivers/gpu/nvgpu/os/posix/bug.c b/drivers/gpu/nvgpu/os/posix/bug.c new file mode 100644 index 00000000..64f4a6f6 --- /dev/null +++ b/drivers/gpu/nvgpu/os/posix/bug.c | |||
@@ -0,0 +1,67 @@ | |||
1 | /* | ||
2 | * Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved. | ||
3 | * | ||
4 | * Permission is hereby granted, free of charge, to any person obtaining a | ||
5 | * copy of this software and associated documentation files (the "Software"), | ||
6 | * to deal in the Software without restriction, including without limitation | ||
7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | ||
8 | * and/or sell copies of the Software, and to permit persons to whom the | ||
9 | * Software is furnished to do so, subject to the following conditions: | ||
10 | * | ||
11 | * The above copyright notice and this permission notice shall be included in | ||
12 | * all copies or substantial portions of the Software. | ||
13 | * | ||
14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | ||
17 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
18 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | ||
19 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | ||
20 | * DEALINGS IN THE SOFTWARE. | ||
21 | */ | ||
22 | |||
23 | #include <nvgpu/log.h> | ||
24 | |||
25 | #include <nvgpu/posix/bug.h> | ||
26 | |||
27 | __attribute__ ((noreturn)) | ||
28 | static void __hang(void) | ||
29 | { | ||
30 | nvgpu_err(NULL, "Hanging!"); | ||
31 | |||
32 | while (1) | ||
33 | ; | ||
34 | } | ||
35 | |||
36 | static void __dump_stack(unsigned int skip_frames) | ||
37 | { | ||
38 | return; | ||
39 | } | ||
40 | |||
41 | void dump_stack(void) | ||
42 | { | ||
43 | __dump_stack(0); | ||
44 | } | ||
45 | |||
46 | /* | ||
47 | * Ahhh! A bug! | ||
48 | */ | ||
49 | void __bug(const char *fmt, ...) | ||
50 | { | ||
51 | nvgpu_err(NULL, "BUG detected!"); | ||
52 | |||
53 | __hang(); | ||
54 | } | ||
55 | |||
56 | bool __warn(bool cond, const char *fmt, ...) | ||
57 | { | ||
58 | if (!cond) | ||
59 | goto done; | ||
60 | |||
61 | nvgpu_warn(NULL, "WARNING detected!"); | ||
62 | |||
63 | dump_stack(); | ||
64 | |||
65 | done: | ||
66 | return cond; | ||
67 | } | ||