1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
|
/*
* %CopyrightBegin%
*
* Copyright Ericsson AB 2006-2013. All Rights Reserved.
*
* The contents of this file are subject to the Erlang Public License,
* Version 1.1, (the "License"); you may not use this file except in
* compliance with the License. You should have received a copy of the
* Erlang Public License along with this software. If not, it can be
* retrieved online at http://www.erlang.org/.
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and limitations
* under the License.
*
* %CopyrightEnd%
*/
/*
* Interface functions to the dynamic linker using dl* functions.
* (No support in OSE, we use static linkage instead)
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "sys.h"
#include "erl_vm.h"
#include "global.h"
void erl_sys_ddll_init(void) {
}
/*
* Open a shared object
*/
int erts_sys_ddll_open(const char *full_name, void **handle, ErtsSysDdllError* err)
{
return ERL_DE_ERROR_NO_DDLL_FUNCTIONALITY;
}
int erts_sys_ddll_open_noext(char *dlname, void **handle, ErtsSysDdllError* err)
{
return ERL_DE_ERROR_NO_DDLL_FUNCTIONALITY;
}
/*
* Find a symbol in the shared object
*/
int erts_sys_ddll_sym2(void *handle, const char *func_name, void **function,
ErtsSysDdllError* err)
{
return ERL_DE_ERROR_NO_DDLL_FUNCTIONALITY;
}
/* XXX:PaN These two will be changed with new driver interface! */
/*
* Load the driver init function, might appear under different names depending on object arch...
*/
int erts_sys_ddll_load_driver_init(void *handle, void **function)
{
void *fn;
int res;
if ((res = erts_sys_ddll_sym2(handle, "driver_init", &fn, NULL)) != ERL_DE_NO_ERROR) {
res = erts_sys_ddll_sym2(handle, "_driver_init", &fn, NULL);
}
if (res == ERL_DE_NO_ERROR) {
*function = fn;
}
return res;
}
int erts_sys_ddll_load_nif_init(void *handle, void **function, ErtsSysDdllError* err)
{
void *fn;
int res;
if ((res = erts_sys_ddll_sym2(handle, "nif_init", &fn, err)) != ERL_DE_NO_ERROR) {
res = erts_sys_ddll_sym2(handle, "_nif_init", &fn, err);
}
if (res == ERL_DE_NO_ERROR) {
*function = fn;
}
return res;
}
/*
* Call the driver_init function, whatever it's really called, simple on unix...
*/
void *erts_sys_ddll_call_init(void *function) {
void *(*initfn)(void) = function;
return (*initfn)();
}
void *erts_sys_ddll_call_nif_init(void *function) {
return erts_sys_ddll_call_init(function);
}
/*
* Close a chared object
*/
int erts_sys_ddll_close2(void *handle, ErtsSysDdllError* err)
{
return ERL_DE_ERROR_NO_DDLL_FUNCTIONALITY;
}
/*
* Return string that describes the (current) error
*/
char *erts_sys_ddll_error(int code)
{
return "Unspecified error";
}
void erts_sys_ddll_free_error(ErtsSysDdllError* err)
{
if (err->str != NULL) {
erts_free(ERTS_ALC_T_DDLL_TMP_BUF, err->str);
}
}
|
