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76bdc726 | 1 | /* Copyright (C) 2021-2023 Free Software Foundation, Inc. |
bb368aad VM |
2 | Contributed by Oracle. |
3 | ||
4 | This file is part of GNU Binutils. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 3, or (at your option) | |
9 | any later version. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, 51 Franklin Street - Fifth Floor, Boston, | |
19 | MA 02110-1301, USA. */ | |
20 | ||
21 | /* C and Fortran stubs for collector API */ | |
22 | ||
23 | #include "config.h" | |
24 | #include <dlfcn.h> | |
25 | #include "gp-defs.h" | |
26 | #include "collectorAPI.h" | |
27 | #include "gp-experiment.h" | |
28 | ||
29 | static void *__real_collector_sample = NULL; | |
30 | static void *__real_collector_pause = NULL; | |
31 | static void *__real_collector_resume = NULL; | |
32 | static void *__real_collector_terminate_expt = NULL; | |
33 | static void *__real_collector_func_load = NULL; | |
34 | static void *__real_collector_func_unload = NULL; | |
35 | ||
36 | #define INIT_API if (init_API == 0) collectorAPI_initAPI() | |
37 | #define NULL_PTR(x) (__real_##x == NULL) | |
38 | #define CALL_REAL(x) (*(void(*)())__real_##x) | |
39 | #define CALL_IF_REAL(x) INIT_API; if (!NULL_PTR(x)) CALL_REAL(x) | |
40 | ||
41 | static int init_API = 0; | |
42 | ||
43 | void | |
44 | collectorAPI_initAPI (void) | |
45 | { | |
46 | void *libcollector = dlopen (SP_LIBCOLLECTOR_NAME, RTLD_NOLOAD); | |
47 | if (libcollector == NULL) | |
48 | libcollector = RTLD_DEFAULT; | |
49 | __real_collector_sample = dlsym (libcollector, "__collector_sample"); | |
50 | __real_collector_pause = dlsym (libcollector, "__collector_pause"); | |
51 | __real_collector_resume = dlsym (libcollector, "__collector_resume"); | |
52 | __real_collector_terminate_expt = dlsym (libcollector, "__collector_terminate_expt"); | |
53 | __real_collector_func_load = dlsym (libcollector, "__collector_func_load"); | |
54 | __real_collector_func_unload = dlsym (libcollector, "__collector_func_unload"); | |
55 | init_API = 1; | |
56 | } | |
57 | ||
58 | /* initialization -- init section routine */ | |
59 | static void collectorAPI_init () __attribute__ ((constructor)); | |
60 | ||
61 | static void | |
62 | collectorAPI_init (void) | |
63 | { | |
64 | collectorAPI_initAPI (); | |
65 | } | |
66 | ||
67 | /* C API */ | |
68 | void | |
69 | collector_pause (void) | |
70 | { | |
71 | CALL_IF_REAL (collector_pause)(); | |
72 | } | |
73 | ||
74 | void | |
75 | collector_resume (void) | |
76 | { | |
77 | CALL_IF_REAL (collector_resume)(); | |
78 | } | |
79 | ||
80 | void | |
81 | collector_sample (const char *name) | |
82 | { | |
83 | CALL_IF_REAL (collector_sample)(name); | |
84 | } | |
85 | ||
86 | void | |
87 | collector_terminate_expt (void) | |
88 | { | |
89 | CALL_IF_REAL (collector_terminate_expt)(); | |
90 | } | |
91 | ||
92 | void | |
93 | collector_func_load (const char *name, const char *alias, const char *sourcename, | |
94 | void *vaddr, int size, int lntsize, Lineno *lntable) | |
95 | { | |
96 | CALL_IF_REAL (collector_func_load)(name, alias, sourcename, | |
97 | vaddr, size, lntsize, lntable); | |
98 | } | |
99 | ||
100 | void | |
101 | collector_func_unload (void *vaddr) | |
102 | { | |
103 | CALL_IF_REAL (collector_func_unload)(vaddr); | |
104 | } | |
105 | ||
106 | /* Fortran API */ | |
107 | void | |
108 | collector_pause_ (void) | |
109 | { | |
110 | CALL_IF_REAL (collector_pause)(); | |
111 | } | |
112 | ||
113 | void | |
114 | collector_resume_ (void) | |
115 | { | |
116 | CALL_IF_REAL (collector_resume)(); | |
117 | } | |
118 | ||
119 | void | |
120 | collector_terminate_expt_ (void) | |
121 | { | |
122 | CALL_IF_REAL (collector_terminate_expt)(); | |
123 | } | |
124 | ||
125 | void | |
126 | collector_sample_ (char *name, long name_length) | |
127 | { | |
128 | INIT_API; | |
129 | if (!NULL_PTR (collector_sample)) | |
130 | { | |
131 | char name_string[256]; | |
132 | long length = sizeof (name_string) - 1; | |
133 | if (name_length < length) | |
134 | length = name_length; | |
135 | for (long i = 0; i < length; i++) | |
136 | name_string[i] = name[i]; | |
137 | name_string[length] = '\0'; | |
138 | CALL_REAL (collector_sample)(name_string); | |
139 | } | |
140 | } |