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62e5f89c SDJ |
1 | /* This testcase is part of GDB, the GNU debugger. |
2 | ||
618f726f | 3 | Copyright 2012-2016 Free Software Foundation, Inc. |
62e5f89c SDJ |
4 | |
5 | This program is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
7 | the Free Software Foundation; either version 3 of the License, or | |
8 | (at your option) any later version. | |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
17 | ||
18 | #if USE_PROBES | |
19 | ||
20 | #define _SDT_HAS_SEMAPHORES | |
21 | __extension__ unsigned short test_user_semaphore __attribute__ ((unused)) __attribute__ ((section (".probes"))); | |
22 | #define TEST test_user_semaphore | |
23 | ||
24 | __extension__ unsigned short test_two_semaphore __attribute__ ((unused)) __attribute__ ((section (".probes"))); | |
25 | #define TEST2 test_two_semaphore | |
26 | ||
27 | __extension__ unsigned short test_m4_semaphore __attribute__ ((unused)) __attribute__ ((section (".probes"))); | |
28 | ||
29 | __extension__ unsigned short test_pstr_semaphore __attribute__ ((unused)) __attribute__ ((section (".probes"))); | |
30 | ||
31 | __extension__ unsigned short test_ps_semaphore __attribute__ ((unused)) __attribute__ ((section (".probes"))); | |
32 | #else | |
33 | ||
34 | #define TEST 1 | |
35 | #define TEST2 1 | |
36 | ||
37 | #endif | |
38 | ||
39 | #include <sys/sdt.h> | |
40 | ||
41 | /* We only support SystemTap and only the v3 form. */ | |
42 | #if _SDT_NOTE_TYPE != 3 | |
43 | #error "not using SystemTap v3 probes" | |
44 | #endif | |
45 | ||
46 | struct funcs | |
47 | { | |
48 | int val; | |
49 | ||
50 | const char *(*ps) (int); | |
51 | }; | |
52 | ||
53 | static void | |
54 | m1 (void) | |
55 | { | |
2c29df25 SDJ |
56 | /* m1 and m2 are equivalent, but because of some compiler |
57 | optimizations we have to make each of them unique. This is why | |
58 | we have this dummy variable here. */ | |
59 | volatile int dummy = 0; | |
60 | ||
62e5f89c | 61 | if (TEST2) |
2c29df25 | 62 | STAP_PROBE1 (test, two, dummy); |
62e5f89c SDJ |
63 | } |
64 | ||
65 | static void | |
66 | m2 (void) | |
67 | { | |
68 | if (TEST2) | |
69 | STAP_PROBE (test, two); | |
70 | } | |
71 | ||
72 | static int | |
73 | f (int x) | |
74 | { | |
75 | if (TEST) | |
76 | STAP_PROBE1 (test, user, x); | |
77 | return x+5; | |
78 | } | |
79 | ||
80 | static const char * | |
81 | pstr (int val) | |
82 | { | |
83 | const char *a = "This is a test message."; | |
84 | const char *b = "This is another test message."; | |
85 | ||
86 | STAP_PROBE3 (test, ps, a, b, val); | |
87 | ||
88 | return val == 0 ? a : b; | |
89 | } | |
90 | ||
91 | static void | |
92 | m4 (const struct funcs *fs, int v) | |
93 | { | |
94 | STAP_PROBE3 (test, m4, fs->val, fs->ps (v), v); | |
95 | } | |
96 | ||
97 | int | |
98 | main() | |
99 | { | |
100 | struct funcs fs; | |
101 | ||
102 | fs.val = 42; | |
103 | fs.ps = pstr; | |
104 | ||
105 | f (f (23)); | |
106 | m1 (); | |
107 | m2 (); | |
108 | ||
109 | m4 (&fs, 0); | |
110 | m4 (&fs, 1); | |
111 | ||
112 | return 0; /* last break here */ | |
113 | } |